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/slab.h>
63 #include <linux/ioport.h>
64 #include <linux/delay.h>
65 #include <linux/pci.h>
66 #include <linux/wait.h>
67 #include <linux/spinlock.h>
68 #include <linux/sched.h>
69 #include <linux/interrupt.h>
70 #include <linux/blkdev.h>
71 #include <linux/firmware.h>
72 #include <linux/module.h>
73 #include <linux/moduleparam.h>
74 #include <linux/libata.h>
75 #include <linux/hdreg.h>
76 #include <linux/reboot.h>
77 #include <linux/stringify.h>
80 #include <asm/processor.h>
81 #include <scsi/scsi.h>
82 #include <scsi/scsi_host.h>
83 #include <scsi/scsi_tcq.h>
84 #include <scsi/scsi_eh.h>
85 #include <scsi/scsi_cmnd.h>
91 static LIST_HEAD(ipr_ioa_head);
92 static unsigned int ipr_log_level = IPR_DEFAULT_LOG_LEVEL;
93 static unsigned int ipr_max_speed = 1;
94 static int ipr_testmode = 0;
95 static unsigned int ipr_fastfail = 0;
96 static unsigned int ipr_transop_timeout = 0;
97 static unsigned int ipr_debug = 0;
98 static unsigned int ipr_max_devs = IPR_DEFAULT_SIS64_DEVS;
99 static unsigned int ipr_dual_ioa_raid = 1;
100 static DEFINE_SPINLOCK(ipr_driver_lock);
102 /* This table describes the differences between DMA controller chips */
103 static const struct ipr_chip_cfg_t ipr_chip_cfg[] = {
104 { /* Gemstone, Citrine, Obsidian, and Obsidian-E */
106 .cache_line_size = 0x20,
108 .set_interrupt_mask_reg = 0x0022C,
109 .clr_interrupt_mask_reg = 0x00230,
110 .clr_interrupt_mask_reg32 = 0x00230,
111 .sense_interrupt_mask_reg = 0x0022C,
112 .sense_interrupt_mask_reg32 = 0x0022C,
113 .clr_interrupt_reg = 0x00228,
114 .clr_interrupt_reg32 = 0x00228,
115 .sense_interrupt_reg = 0x00224,
116 .sense_interrupt_reg32 = 0x00224,
117 .ioarrin_reg = 0x00404,
118 .sense_uproc_interrupt_reg = 0x00214,
119 .sense_uproc_interrupt_reg32 = 0x00214,
120 .set_uproc_interrupt_reg = 0x00214,
121 .set_uproc_interrupt_reg32 = 0x00214,
122 .clr_uproc_interrupt_reg = 0x00218,
123 .clr_uproc_interrupt_reg32 = 0x00218
126 { /* Snipe and Scamp */
128 .cache_line_size = 0x20,
130 .set_interrupt_mask_reg = 0x00288,
131 .clr_interrupt_mask_reg = 0x0028C,
132 .clr_interrupt_mask_reg32 = 0x0028C,
133 .sense_interrupt_mask_reg = 0x00288,
134 .sense_interrupt_mask_reg32 = 0x00288,
135 .clr_interrupt_reg = 0x00284,
136 .clr_interrupt_reg32 = 0x00284,
137 .sense_interrupt_reg = 0x00280,
138 .sense_interrupt_reg32 = 0x00280,
139 .ioarrin_reg = 0x00504,
140 .sense_uproc_interrupt_reg = 0x00290,
141 .sense_uproc_interrupt_reg32 = 0x00290,
142 .set_uproc_interrupt_reg = 0x00290,
143 .set_uproc_interrupt_reg32 = 0x00290,
144 .clr_uproc_interrupt_reg = 0x00294,
145 .clr_uproc_interrupt_reg32 = 0x00294
150 .cache_line_size = 0x20,
152 .set_interrupt_mask_reg = 0x00010,
153 .clr_interrupt_mask_reg = 0x00018,
154 .clr_interrupt_mask_reg32 = 0x0001C,
155 .sense_interrupt_mask_reg = 0x00010,
156 .sense_interrupt_mask_reg32 = 0x00014,
157 .clr_interrupt_reg = 0x00008,
158 .clr_interrupt_reg32 = 0x0000C,
159 .sense_interrupt_reg = 0x00000,
160 .sense_interrupt_reg32 = 0x00004,
161 .ioarrin_reg = 0x00070,
162 .sense_uproc_interrupt_reg = 0x00020,
163 .sense_uproc_interrupt_reg32 = 0x00024,
164 .set_uproc_interrupt_reg = 0x00020,
165 .set_uproc_interrupt_reg32 = 0x00024,
166 .clr_uproc_interrupt_reg = 0x00028,
167 .clr_uproc_interrupt_reg32 = 0x0002C,
168 .init_feedback_reg = 0x0005C,
169 .dump_addr_reg = 0x00064,
170 .dump_data_reg = 0x00068
175 static const struct ipr_chip_t ipr_chip[] = {
176 { PCI_VENDOR_ID_MYLEX, PCI_DEVICE_ID_IBM_GEMSTONE, IPR_USE_LSI, IPR_SIS32, &ipr_chip_cfg[0] },
177 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CITRINE, IPR_USE_LSI, IPR_SIS32, &ipr_chip_cfg[0] },
178 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_OBSIDIAN, IPR_USE_LSI, IPR_SIS32, &ipr_chip_cfg[0] },
179 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN, IPR_USE_LSI, IPR_SIS32, &ipr_chip_cfg[0] },
180 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN_E, IPR_USE_MSI, IPR_SIS32, &ipr_chip_cfg[0] },
181 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_SNIPE, IPR_USE_LSI, IPR_SIS32, &ipr_chip_cfg[1] },
182 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_SCAMP, IPR_USE_LSI, IPR_SIS32, &ipr_chip_cfg[1] },
183 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_FPGA_E2, IPR_USE_MSI, IPR_SIS64, &ipr_chip_cfg[2] },
184 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_ASIC_E2, IPR_USE_MSI, IPR_SIS64, &ipr_chip_cfg[2] }
187 static int ipr_max_bus_speeds [] = {
188 IPR_80MBs_SCSI_RATE, IPR_U160_SCSI_RATE, IPR_U320_SCSI_RATE
191 MODULE_AUTHOR("Brian King <brking@us.ibm.com>");
192 MODULE_DESCRIPTION("IBM Power RAID SCSI Adapter Driver");
193 module_param_named(max_speed, ipr_max_speed, uint, 0);
194 MODULE_PARM_DESC(max_speed, "Maximum bus speed (0-2). Default: 1=U160. Speeds: 0=80 MB/s, 1=U160, 2=U320");
195 module_param_named(log_level, ipr_log_level, uint, 0);
196 MODULE_PARM_DESC(log_level, "Set to 0 - 4 for increasing verbosity of device driver");
197 module_param_named(testmode, ipr_testmode, int, 0);
198 MODULE_PARM_DESC(testmode, "DANGEROUS!!! Allows unsupported configurations");
199 module_param_named(fastfail, ipr_fastfail, int, S_IRUGO | S_IWUSR);
200 MODULE_PARM_DESC(fastfail, "Reduce timeouts and retries");
201 module_param_named(transop_timeout, ipr_transop_timeout, int, 0);
202 MODULE_PARM_DESC(transop_timeout, "Time in seconds to wait for adapter to come operational (default: 300)");
203 module_param_named(debug, ipr_debug, int, S_IRUGO | S_IWUSR);
204 MODULE_PARM_DESC(debug, "Enable device driver debugging logging. Set to 1 to enable. (default: 0)");
205 module_param_named(dual_ioa_raid, ipr_dual_ioa_raid, int, 0);
206 MODULE_PARM_DESC(dual_ioa_raid, "Enable dual adapter RAID support. Set to 1 to enable. (default: 1)");
207 module_param_named(max_devs, ipr_max_devs, int, 0);
208 MODULE_PARM_DESC(max_devs, "Specify the maximum number of physical devices. "
209 "[Default=" __stringify(IPR_DEFAULT_SIS64_DEVS) "]");
210 MODULE_LICENSE("GPL");
211 MODULE_VERSION(IPR_DRIVER_VERSION);
213 /* A constant array of IOASCs/URCs/Error Messages */
215 struct ipr_error_table_t ipr_error_table[] = {
216 {0x00000000, 1, IPR_DEFAULT_LOG_LEVEL,
217 "8155: An unknown error was received"},
219 "Soft underlength error"},
221 "Command to be cancelled not found"},
223 "Qualified success"},
224 {0x01080000, 1, IPR_DEFAULT_LOG_LEVEL,
225 "FFFE: Soft device bus error recovered by the IOA"},
226 {0x01088100, 0, IPR_DEFAULT_LOG_LEVEL,
227 "4101: Soft device bus fabric error"},
228 {0x01100100, 0, IPR_DEFAULT_LOG_LEVEL,
229 "FFFC: Logical block guard error recovered by the device"},
230 {0x01100300, 0, IPR_DEFAULT_LOG_LEVEL,
231 "FFFC: Logical block reference tag error recovered by the device"},
232 {0x01108300, 0, IPR_DEFAULT_LOG_LEVEL,
233 "4171: Recovered scatter list tag / sequence number error"},
234 {0x01109000, 0, IPR_DEFAULT_LOG_LEVEL,
235 "FF3D: Recovered logical block CRC error on IOA to Host transfer"},
236 {0x01109200, 0, IPR_DEFAULT_LOG_LEVEL,
237 "4171: Recovered logical block sequence number error on IOA to Host transfer"},
238 {0x0110A000, 0, IPR_DEFAULT_LOG_LEVEL,
239 "FFFD: Recovered logical block reference tag error detected by the IOA"},
240 {0x0110A100, 0, IPR_DEFAULT_LOG_LEVEL,
241 "FFFD: Logical block guard error recovered by the IOA"},
242 {0x01170600, 0, IPR_DEFAULT_LOG_LEVEL,
243 "FFF9: Device sector reassign successful"},
244 {0x01170900, 0, IPR_DEFAULT_LOG_LEVEL,
245 "FFF7: Media error recovered by device rewrite procedures"},
246 {0x01180200, 0, IPR_DEFAULT_LOG_LEVEL,
247 "7001: IOA sector reassignment successful"},
248 {0x01180500, 0, IPR_DEFAULT_LOG_LEVEL,
249 "FFF9: Soft media error. Sector reassignment recommended"},
250 {0x01180600, 0, IPR_DEFAULT_LOG_LEVEL,
251 "FFF7: Media error recovered by IOA rewrite procedures"},
252 {0x01418000, 0, IPR_DEFAULT_LOG_LEVEL,
253 "FF3D: Soft PCI bus error recovered by the IOA"},
254 {0x01440000, 1, IPR_DEFAULT_LOG_LEVEL,
255 "FFF6: Device hardware error recovered by the IOA"},
256 {0x01448100, 0, IPR_DEFAULT_LOG_LEVEL,
257 "FFF6: Device hardware error recovered by the device"},
258 {0x01448200, 1, IPR_DEFAULT_LOG_LEVEL,
259 "FF3D: Soft IOA error recovered by the IOA"},
260 {0x01448300, 0, IPR_DEFAULT_LOG_LEVEL,
261 "FFFA: Undefined device response recovered by the IOA"},
262 {0x014A0000, 1, IPR_DEFAULT_LOG_LEVEL,
263 "FFF6: Device bus error, message or command phase"},
264 {0x014A8000, 0, IPR_DEFAULT_LOG_LEVEL,
265 "FFFE: Task Management Function failed"},
266 {0x015D0000, 0, IPR_DEFAULT_LOG_LEVEL,
267 "FFF6: Failure prediction threshold exceeded"},
268 {0x015D9200, 0, IPR_DEFAULT_LOG_LEVEL,
269 "8009: Impending cache battery pack failure"},
271 "34FF: Disk device format in progress"},
272 {0x02048000, 0, IPR_DEFAULT_LOG_LEVEL,
273 "9070: IOA requested reset"},
275 "Synchronization required"},
277 "No ready, IOA shutdown"},
279 "Not ready, IOA has been shutdown"},
280 {0x02670100, 0, IPR_DEFAULT_LOG_LEVEL,
281 "3020: Storage subsystem configuration error"},
283 "FFF5: Medium error, data unreadable, recommend reassign"},
285 "7000: Medium error, data unreadable, do not reassign"},
286 {0x03310000, 0, IPR_DEFAULT_LOG_LEVEL,
287 "FFF3: Disk media format bad"},
288 {0x04050000, 0, IPR_DEFAULT_LOG_LEVEL,
289 "3002: Addressed device failed to respond to selection"},
290 {0x04080000, 1, IPR_DEFAULT_LOG_LEVEL,
291 "3100: Device bus error"},
292 {0x04080100, 0, IPR_DEFAULT_LOG_LEVEL,
293 "3109: IOA timed out a device command"},
295 "3120: SCSI bus is not operational"},
296 {0x04088100, 0, IPR_DEFAULT_LOG_LEVEL,
297 "4100: Hard device bus fabric error"},
298 {0x04100100, 0, IPR_DEFAULT_LOG_LEVEL,
299 "310C: Logical block guard error detected by the device"},
300 {0x04100300, 0, IPR_DEFAULT_LOG_LEVEL,
301 "310C: Logical block reference tag error detected by the device"},
302 {0x04108300, 1, IPR_DEFAULT_LOG_LEVEL,
303 "4170: Scatter list tag / sequence number error"},
304 {0x04109000, 1, IPR_DEFAULT_LOG_LEVEL,
305 "8150: Logical block CRC error on IOA to Host transfer"},
306 {0x04109200, 1, IPR_DEFAULT_LOG_LEVEL,
307 "4170: Logical block sequence number error on IOA to Host transfer"},
308 {0x0410A000, 0, IPR_DEFAULT_LOG_LEVEL,
309 "310D: Logical block reference tag error detected by the IOA"},
310 {0x0410A100, 0, IPR_DEFAULT_LOG_LEVEL,
311 "310D: Logical block guard error detected by the IOA"},
312 {0x04118000, 0, IPR_DEFAULT_LOG_LEVEL,
313 "9000: IOA reserved area data check"},
314 {0x04118100, 0, IPR_DEFAULT_LOG_LEVEL,
315 "9001: IOA reserved area invalid data pattern"},
316 {0x04118200, 0, IPR_DEFAULT_LOG_LEVEL,
317 "9002: IOA reserved area LRC error"},
318 {0x04118300, 1, IPR_DEFAULT_LOG_LEVEL,
319 "Hardware Error, IOA metadata access error"},
320 {0x04320000, 0, IPR_DEFAULT_LOG_LEVEL,
321 "102E: Out of alternate sectors for disk storage"},
322 {0x04330000, 1, IPR_DEFAULT_LOG_LEVEL,
323 "FFF4: Data transfer underlength error"},
324 {0x04338000, 1, IPR_DEFAULT_LOG_LEVEL,
325 "FFF4: Data transfer overlength error"},
326 {0x043E0100, 0, IPR_DEFAULT_LOG_LEVEL,
327 "3400: Logical unit failure"},
328 {0x04408500, 0, IPR_DEFAULT_LOG_LEVEL,
329 "FFF4: Device microcode is corrupt"},
330 {0x04418000, 1, IPR_DEFAULT_LOG_LEVEL,
331 "8150: PCI bus error"},
333 "Unsupported device bus message received"},
334 {0x04440000, 1, IPR_DEFAULT_LOG_LEVEL,
335 "FFF4: Disk device problem"},
336 {0x04448200, 1, IPR_DEFAULT_LOG_LEVEL,
337 "8150: Permanent IOA failure"},
338 {0x04448300, 0, IPR_DEFAULT_LOG_LEVEL,
339 "3010: Disk device returned wrong response to IOA"},
340 {0x04448400, 0, IPR_DEFAULT_LOG_LEVEL,
341 "8151: IOA microcode error"},
343 "Device bus status error"},
344 {0x04448600, 0, IPR_DEFAULT_LOG_LEVEL,
345 "8157: IOA error requiring IOA reset to recover"},
347 "ATA device status error"},
349 "Message reject received from the device"},
350 {0x04449200, 0, IPR_DEFAULT_LOG_LEVEL,
351 "8008: A permanent cache battery pack failure occurred"},
352 {0x0444A000, 0, IPR_DEFAULT_LOG_LEVEL,
353 "9090: Disk unit has been modified after the last known status"},
354 {0x0444A200, 0, IPR_DEFAULT_LOG_LEVEL,
355 "9081: IOA detected device error"},
356 {0x0444A300, 0, IPR_DEFAULT_LOG_LEVEL,
357 "9082: IOA detected device error"},
358 {0x044A0000, 1, IPR_DEFAULT_LOG_LEVEL,
359 "3110: Device bus error, message or command phase"},
360 {0x044A8000, 1, IPR_DEFAULT_LOG_LEVEL,
361 "3110: SAS Command / Task Management Function failed"},
362 {0x04670400, 0, IPR_DEFAULT_LOG_LEVEL,
363 "9091: Incorrect hardware configuration change has been detected"},
364 {0x04678000, 0, IPR_DEFAULT_LOG_LEVEL,
365 "9073: Invalid multi-adapter configuration"},
366 {0x04678100, 0, IPR_DEFAULT_LOG_LEVEL,
367 "4010: Incorrect connection between cascaded expanders"},
368 {0x04678200, 0, IPR_DEFAULT_LOG_LEVEL,
369 "4020: Connections exceed IOA design limits"},
370 {0x04678300, 0, IPR_DEFAULT_LOG_LEVEL,
371 "4030: Incorrect multipath connection"},
372 {0x04679000, 0, IPR_DEFAULT_LOG_LEVEL,
373 "4110: Unsupported enclosure function"},
374 {0x046E0000, 0, IPR_DEFAULT_LOG_LEVEL,
375 "FFF4: Command to logical unit failed"},
377 "Illegal request, invalid request type or request packet"},
379 "Illegal request, invalid resource handle"},
381 "Illegal request, commands not allowed to this device"},
383 "Illegal request, command not allowed to a secondary adapter"},
385 "Illegal request, command not allowed to a non-optimized resource"},
387 "Illegal request, invalid field in parameter list"},
389 "Illegal request, parameter not supported"},
391 "Illegal request, parameter value invalid"},
393 "Illegal request, command sequence error"},
395 "Illegal request, dual adapter support not enabled"},
396 {0x06040500, 0, IPR_DEFAULT_LOG_LEVEL,
397 "9031: Array protection temporarily suspended, protection resuming"},
398 {0x06040600, 0, IPR_DEFAULT_LOG_LEVEL,
399 "9040: Array protection temporarily suspended, protection resuming"},
400 {0x06288000, 0, IPR_DEFAULT_LOG_LEVEL,
401 "3140: Device bus not ready to ready transition"},
402 {0x06290000, 0, IPR_DEFAULT_LOG_LEVEL,
403 "FFFB: SCSI bus was reset"},
405 "FFFE: SCSI bus transition to single ended"},
407 "FFFE: SCSI bus transition to LVD"},
408 {0x06298000, 0, IPR_DEFAULT_LOG_LEVEL,
409 "FFFB: SCSI bus was reset by another initiator"},
410 {0x063F0300, 0, IPR_DEFAULT_LOG_LEVEL,
411 "3029: A device replacement has occurred"},
412 {0x064C8000, 0, IPR_DEFAULT_LOG_LEVEL,
413 "9051: IOA cache data exists for a missing or failed device"},
414 {0x064C8100, 0, IPR_DEFAULT_LOG_LEVEL,
415 "9055: Auxiliary cache IOA contains cache data needed by the primary IOA"},
416 {0x06670100, 0, IPR_DEFAULT_LOG_LEVEL,
417 "9025: Disk unit is not supported at its physical location"},
418 {0x06670600, 0, IPR_DEFAULT_LOG_LEVEL,
419 "3020: IOA detected a SCSI bus configuration error"},
420 {0x06678000, 0, IPR_DEFAULT_LOG_LEVEL,
421 "3150: SCSI bus configuration error"},
422 {0x06678100, 0, IPR_DEFAULT_LOG_LEVEL,
423 "9074: Asymmetric advanced function disk configuration"},
424 {0x06678300, 0, IPR_DEFAULT_LOG_LEVEL,
425 "4040: Incomplete multipath connection between IOA and enclosure"},
426 {0x06678400, 0, IPR_DEFAULT_LOG_LEVEL,
427 "4041: Incomplete multipath connection between enclosure and device"},
428 {0x06678500, 0, IPR_DEFAULT_LOG_LEVEL,
429 "9075: Incomplete multipath connection between IOA and remote IOA"},
430 {0x06678600, 0, IPR_DEFAULT_LOG_LEVEL,
431 "9076: Configuration error, missing remote IOA"},
432 {0x06679100, 0, IPR_DEFAULT_LOG_LEVEL,
433 "4050: Enclosure does not support a required multipath function"},
434 {0x06690000, 0, IPR_DEFAULT_LOG_LEVEL,
435 "4070: Logically bad block written on device"},
436 {0x06690200, 0, IPR_DEFAULT_LOG_LEVEL,
437 "9041: Array protection temporarily suspended"},
438 {0x06698200, 0, IPR_DEFAULT_LOG_LEVEL,
439 "9042: Corrupt array parity detected on specified device"},
440 {0x066B0200, 0, IPR_DEFAULT_LOG_LEVEL,
441 "9030: Array no longer protected due to missing or failed disk unit"},
442 {0x066B8000, 0, IPR_DEFAULT_LOG_LEVEL,
443 "9071: Link operational transition"},
444 {0x066B8100, 0, IPR_DEFAULT_LOG_LEVEL,
445 "9072: Link not operational transition"},
446 {0x066B8200, 0, IPR_DEFAULT_LOG_LEVEL,
447 "9032: Array exposed but still protected"},
448 {0x066B8300, 0, IPR_DEFAULT_LOG_LEVEL + 1,
449 "70DD: Device forced failed by disrupt device command"},
450 {0x066B9100, 0, IPR_DEFAULT_LOG_LEVEL,
451 "4061: Multipath redundancy level got better"},
452 {0x066B9200, 0, IPR_DEFAULT_LOG_LEVEL,
453 "4060: Multipath redundancy level got worse"},
455 "Failure due to other device"},
456 {0x07278000, 0, IPR_DEFAULT_LOG_LEVEL,
457 "9008: IOA does not support functions expected by devices"},
458 {0x07278100, 0, IPR_DEFAULT_LOG_LEVEL,
459 "9010: Cache data associated with attached devices cannot be found"},
460 {0x07278200, 0, IPR_DEFAULT_LOG_LEVEL,
461 "9011: Cache data belongs to devices other than those attached"},
462 {0x07278400, 0, IPR_DEFAULT_LOG_LEVEL,
463 "9020: Array missing 2 or more devices with only 1 device present"},
464 {0x07278500, 0, IPR_DEFAULT_LOG_LEVEL,
465 "9021: Array missing 2 or more devices with 2 or more devices present"},
466 {0x07278600, 0, IPR_DEFAULT_LOG_LEVEL,
467 "9022: Exposed array is missing a required device"},
468 {0x07278700, 0, IPR_DEFAULT_LOG_LEVEL,
469 "9023: Array member(s) not at required physical locations"},
470 {0x07278800, 0, IPR_DEFAULT_LOG_LEVEL,
471 "9024: Array not functional due to present hardware configuration"},
472 {0x07278900, 0, IPR_DEFAULT_LOG_LEVEL,
473 "9026: Array not functional due to present hardware configuration"},
474 {0x07278A00, 0, IPR_DEFAULT_LOG_LEVEL,
475 "9027: Array is missing a device and parity is out of sync"},
476 {0x07278B00, 0, IPR_DEFAULT_LOG_LEVEL,
477 "9028: Maximum number of arrays already exist"},
478 {0x07278C00, 0, IPR_DEFAULT_LOG_LEVEL,
479 "9050: Required cache data cannot be located for a disk unit"},
480 {0x07278D00, 0, IPR_DEFAULT_LOG_LEVEL,
481 "9052: Cache data exists for a device that has been modified"},
482 {0x07278F00, 0, IPR_DEFAULT_LOG_LEVEL,
483 "9054: IOA resources not available due to previous problems"},
484 {0x07279100, 0, IPR_DEFAULT_LOG_LEVEL,
485 "9092: Disk unit requires initialization before use"},
486 {0x07279200, 0, IPR_DEFAULT_LOG_LEVEL,
487 "9029: Incorrect hardware configuration change has been detected"},
488 {0x07279600, 0, IPR_DEFAULT_LOG_LEVEL,
489 "9060: One or more disk pairs are missing from an array"},
490 {0x07279700, 0, IPR_DEFAULT_LOG_LEVEL,
491 "9061: One or more disks are missing from an array"},
492 {0x07279800, 0, IPR_DEFAULT_LOG_LEVEL,
493 "9062: One or more disks are missing from an array"},
494 {0x07279900, 0, IPR_DEFAULT_LOG_LEVEL,
495 "9063: Maximum number of functional arrays has been exceeded"},
497 "Aborted command, invalid descriptor"},
499 "Command terminated by host"}
502 static const struct ipr_ses_table_entry ipr_ses_table[] = {
503 { "2104-DL1 ", "XXXXXXXXXXXXXXXX", 80 },
504 { "2104-TL1 ", "XXXXXXXXXXXXXXXX", 80 },
505 { "HSBP07M P U2SCSI", "XXXXXXXXXXXXXXXX", 80 }, /* Hidive 7 slot */
506 { "HSBP05M P U2SCSI", "XXXXXXXXXXXXXXXX", 80 }, /* Hidive 5 slot */
507 { "HSBP05M S U2SCSI", "XXXXXXXXXXXXXXXX", 80 }, /* Bowtie */
508 { "HSBP06E ASU2SCSI", "XXXXXXXXXXXXXXXX", 80 }, /* MartinFenning */
509 { "2104-DU3 ", "XXXXXXXXXXXXXXXX", 160 },
510 { "2104-TU3 ", "XXXXXXXXXXXXXXXX", 160 },
511 { "HSBP04C RSU2SCSI", "XXXXXXX*XXXXXXXX", 160 },
512 { "HSBP06E RSU2SCSI", "XXXXXXX*XXXXXXXX", 160 },
513 { "St V1S2 ", "XXXXXXXXXXXXXXXX", 160 },
514 { "HSBPD4M PU3SCSI", "XXXXXXX*XXXXXXXX", 160 },
515 { "VSBPD1H U3SCSI", "XXXXXXX*XXXXXXXX", 160 }
519 * Function Prototypes
521 static int ipr_reset_alert(struct ipr_cmnd *);
522 static void ipr_process_ccn(struct ipr_cmnd *);
523 static void ipr_process_error(struct ipr_cmnd *);
524 static void ipr_reset_ioa_job(struct ipr_cmnd *);
525 static void ipr_initiate_ioa_reset(struct ipr_ioa_cfg *,
526 enum ipr_shutdown_type);
528 #ifdef CONFIG_SCSI_IPR_TRACE
530 * ipr_trc_hook - Add a trace entry to the driver trace
531 * @ipr_cmd: ipr command struct
533 * @add_data: additional data
538 static void ipr_trc_hook(struct ipr_cmnd *ipr_cmd,
539 u8 type, u32 add_data)
541 struct ipr_trace_entry *trace_entry;
542 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
544 trace_entry = &ioa_cfg->trace[ioa_cfg->trace_index++];
545 trace_entry->time = jiffies;
546 trace_entry->op_code = ipr_cmd->ioarcb.cmd_pkt.cdb[0];
547 trace_entry->type = type;
548 if (ipr_cmd->ioa_cfg->sis64)
549 trace_entry->ata_op_code = ipr_cmd->i.ata_ioadl.regs.command;
551 trace_entry->ata_op_code = ipr_cmd->ioarcb.u.add_data.u.regs.command;
552 trace_entry->cmd_index = ipr_cmd->cmd_index & 0xff;
553 trace_entry->res_handle = ipr_cmd->ioarcb.res_handle;
554 trace_entry->u.add_data = add_data;
557 #define ipr_trc_hook(ipr_cmd, type, add_data) do { } while(0)
561 * ipr_reinit_ipr_cmnd - Re-initialize an IPR Cmnd block for reuse
562 * @ipr_cmd: ipr command struct
567 static void ipr_reinit_ipr_cmnd(struct ipr_cmnd *ipr_cmd)
569 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
570 struct ipr_ioasa *ioasa = &ipr_cmd->s.ioasa;
571 struct ipr_ioasa64 *ioasa64 = &ipr_cmd->s.ioasa64;
572 dma_addr_t dma_addr = ipr_cmd->dma_addr;
574 memset(&ioarcb->cmd_pkt, 0, sizeof(struct ipr_cmd_pkt));
575 ioarcb->data_transfer_length = 0;
576 ioarcb->read_data_transfer_length = 0;
577 ioarcb->ioadl_len = 0;
578 ioarcb->read_ioadl_len = 0;
580 if (ipr_cmd->ioa_cfg->sis64) {
581 ioarcb->u.sis64_addr_data.data_ioadl_addr =
582 cpu_to_be64(dma_addr + offsetof(struct ipr_cmnd, i.ioadl64));
583 ioasa64->u.gata.status = 0;
585 ioarcb->write_ioadl_addr =
586 cpu_to_be32(dma_addr + offsetof(struct ipr_cmnd, i.ioadl));
587 ioarcb->read_ioadl_addr = ioarcb->write_ioadl_addr;
588 ioasa->u.gata.status = 0;
591 ioasa->hdr.ioasc = 0;
592 ioasa->hdr.residual_data_len = 0;
593 ipr_cmd->scsi_cmd = NULL;
595 ipr_cmd->sense_buffer[0] = 0;
596 ipr_cmd->dma_use_sg = 0;
600 * ipr_init_ipr_cmnd - Initialize an IPR Cmnd block
601 * @ipr_cmd: ipr command struct
606 static void ipr_init_ipr_cmnd(struct ipr_cmnd *ipr_cmd)
608 ipr_reinit_ipr_cmnd(ipr_cmd);
609 ipr_cmd->u.scratch = 0;
610 ipr_cmd->sibling = NULL;
611 init_timer(&ipr_cmd->timer);
615 * ipr_get_free_ipr_cmnd - Get a free IPR Cmnd block
616 * @ioa_cfg: ioa config struct
619 * pointer to ipr command struct
622 struct ipr_cmnd *ipr_get_free_ipr_cmnd(struct ipr_ioa_cfg *ioa_cfg)
624 struct ipr_cmnd *ipr_cmd;
626 ipr_cmd = list_entry(ioa_cfg->free_q.next, struct ipr_cmnd, queue);
627 list_del(&ipr_cmd->queue);
628 ipr_init_ipr_cmnd(ipr_cmd);
634 * ipr_mask_and_clear_interrupts - Mask all and clear specified interrupts
635 * @ioa_cfg: ioa config struct
636 * @clr_ints: interrupts to clear
638 * This function masks all interrupts on the adapter, then clears the
639 * interrupts specified in the mask
644 static void ipr_mask_and_clear_interrupts(struct ipr_ioa_cfg *ioa_cfg,
647 volatile u32 int_reg;
649 /* Stop new interrupts */
650 ioa_cfg->allow_interrupts = 0;
652 /* Set interrupt mask to stop all new interrupts */
654 writeq(~0, ioa_cfg->regs.set_interrupt_mask_reg);
656 writel(~0, ioa_cfg->regs.set_interrupt_mask_reg);
658 /* Clear any pending interrupts */
660 writel(~0, ioa_cfg->regs.clr_interrupt_reg);
661 writel(clr_ints, ioa_cfg->regs.clr_interrupt_reg32);
662 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg);
666 * ipr_save_pcix_cmd_reg - Save PCI-X command register
667 * @ioa_cfg: ioa config struct
670 * 0 on success / -EIO on failure
672 static int ipr_save_pcix_cmd_reg(struct ipr_ioa_cfg *ioa_cfg)
674 int pcix_cmd_reg = pci_find_capability(ioa_cfg->pdev, PCI_CAP_ID_PCIX);
676 if (pcix_cmd_reg == 0)
679 if (pci_read_config_word(ioa_cfg->pdev, pcix_cmd_reg + PCI_X_CMD,
680 &ioa_cfg->saved_pcix_cmd_reg) != PCIBIOS_SUCCESSFUL) {
681 dev_err(&ioa_cfg->pdev->dev, "Failed to save PCI-X command register\n");
685 ioa_cfg->saved_pcix_cmd_reg |= PCI_X_CMD_DPERR_E | PCI_X_CMD_ERO;
690 * ipr_set_pcix_cmd_reg - Setup PCI-X command register
691 * @ioa_cfg: ioa config struct
694 * 0 on success / -EIO on failure
696 static int ipr_set_pcix_cmd_reg(struct ipr_ioa_cfg *ioa_cfg)
698 int pcix_cmd_reg = pci_find_capability(ioa_cfg->pdev, PCI_CAP_ID_PCIX);
701 if (pci_write_config_word(ioa_cfg->pdev, pcix_cmd_reg + PCI_X_CMD,
702 ioa_cfg->saved_pcix_cmd_reg) != PCIBIOS_SUCCESSFUL) {
703 dev_err(&ioa_cfg->pdev->dev, "Failed to setup PCI-X command register\n");
712 * ipr_sata_eh_done - done function for aborted SATA commands
713 * @ipr_cmd: ipr command struct
715 * This function is invoked for ops generated to SATA
716 * devices which are being aborted.
721 static void ipr_sata_eh_done(struct ipr_cmnd *ipr_cmd)
723 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
724 struct ata_queued_cmd *qc = ipr_cmd->qc;
725 struct ipr_sata_port *sata_port = qc->ap->private_data;
727 qc->err_mask |= AC_ERR_OTHER;
728 sata_port->ioasa.status |= ATA_BUSY;
729 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
734 * ipr_scsi_eh_done - mid-layer done function for aborted ops
735 * @ipr_cmd: ipr command struct
737 * This function is invoked by the interrupt handler for
738 * ops generated by the SCSI mid-layer which are being aborted.
743 static void ipr_scsi_eh_done(struct ipr_cmnd *ipr_cmd)
745 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
746 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd;
748 scsi_cmd->result |= (DID_ERROR << 16);
750 scsi_dma_unmap(ipr_cmd->scsi_cmd);
751 scsi_cmd->scsi_done(scsi_cmd);
752 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
756 * ipr_fail_all_ops - Fails all outstanding ops.
757 * @ioa_cfg: ioa config struct
759 * This function fails all outstanding ops.
764 static void ipr_fail_all_ops(struct ipr_ioa_cfg *ioa_cfg)
766 struct ipr_cmnd *ipr_cmd, *temp;
769 list_for_each_entry_safe(ipr_cmd, temp, &ioa_cfg->pending_q, queue) {
770 list_del(&ipr_cmd->queue);
772 ipr_cmd->s.ioasa.hdr.ioasc = cpu_to_be32(IPR_IOASC_IOA_WAS_RESET);
773 ipr_cmd->s.ioasa.hdr.ilid = cpu_to_be32(IPR_DRIVER_ILID);
775 if (ipr_cmd->scsi_cmd)
776 ipr_cmd->done = ipr_scsi_eh_done;
777 else if (ipr_cmd->qc)
778 ipr_cmd->done = ipr_sata_eh_done;
780 ipr_trc_hook(ipr_cmd, IPR_TRACE_FINISH, IPR_IOASC_IOA_WAS_RESET);
781 del_timer(&ipr_cmd->timer);
782 ipr_cmd->done(ipr_cmd);
789 * ipr_send_command - Send driver initiated requests.
790 * @ipr_cmd: ipr command struct
792 * This function sends a command to the adapter using the correct write call.
793 * In the case of sis64, calculate the ioarcb size required. Then or in the
799 static void ipr_send_command(struct ipr_cmnd *ipr_cmd)
801 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
802 dma_addr_t send_dma_addr = ipr_cmd->dma_addr;
804 if (ioa_cfg->sis64) {
805 /* The default size is 256 bytes */
806 send_dma_addr |= 0x1;
808 /* If the number of ioadls * size of ioadl > 128 bytes,
809 then use a 512 byte ioarcb */
810 if (ipr_cmd->dma_use_sg * sizeof(struct ipr_ioadl64_desc) > 128 )
811 send_dma_addr |= 0x4;
812 writeq(send_dma_addr, ioa_cfg->regs.ioarrin_reg);
814 writel(send_dma_addr, ioa_cfg->regs.ioarrin_reg);
818 * ipr_do_req - Send driver initiated requests.
819 * @ipr_cmd: ipr command struct
820 * @done: done function
821 * @timeout_func: timeout function
822 * @timeout: timeout value
824 * This function sends the specified command to the adapter with the
825 * timeout given. The done function is invoked on command completion.
830 static void ipr_do_req(struct ipr_cmnd *ipr_cmd,
831 void (*done) (struct ipr_cmnd *),
832 void (*timeout_func) (struct ipr_cmnd *), u32 timeout)
834 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
836 list_add_tail(&ipr_cmd->queue, &ioa_cfg->pending_q);
838 ipr_cmd->done = done;
840 ipr_cmd->timer.data = (unsigned long) ipr_cmd;
841 ipr_cmd->timer.expires = jiffies + timeout;
842 ipr_cmd->timer.function = (void (*)(unsigned long))timeout_func;
844 add_timer(&ipr_cmd->timer);
846 ipr_trc_hook(ipr_cmd, IPR_TRACE_START, 0);
850 ipr_send_command(ipr_cmd);
854 * ipr_internal_cmd_done - Op done function for an internally generated op.
855 * @ipr_cmd: ipr command struct
857 * This function is the op done function for an internally generated,
858 * blocking op. It simply wakes the sleeping thread.
863 static void ipr_internal_cmd_done(struct ipr_cmnd *ipr_cmd)
865 if (ipr_cmd->sibling)
866 ipr_cmd->sibling = NULL;
868 complete(&ipr_cmd->completion);
872 * ipr_init_ioadl - initialize the ioadl for the correct SIS type
873 * @ipr_cmd: ipr command struct
874 * @dma_addr: dma address
875 * @len: transfer length
876 * @flags: ioadl flag value
878 * This function initializes an ioadl in the case where there is only a single
884 static void ipr_init_ioadl(struct ipr_cmnd *ipr_cmd, dma_addr_t dma_addr,
887 struct ipr_ioadl_desc *ioadl = ipr_cmd->i.ioadl;
888 struct ipr_ioadl64_desc *ioadl64 = ipr_cmd->i.ioadl64;
890 ipr_cmd->dma_use_sg = 1;
892 if (ipr_cmd->ioa_cfg->sis64) {
893 ioadl64->flags = cpu_to_be32(flags);
894 ioadl64->data_len = cpu_to_be32(len);
895 ioadl64->address = cpu_to_be64(dma_addr);
897 ipr_cmd->ioarcb.ioadl_len =
898 cpu_to_be32(sizeof(struct ipr_ioadl64_desc));
899 ipr_cmd->ioarcb.data_transfer_length = cpu_to_be32(len);
901 ioadl->flags_and_data_len = cpu_to_be32(flags | len);
902 ioadl->address = cpu_to_be32(dma_addr);
904 if (flags == IPR_IOADL_FLAGS_READ_LAST) {
905 ipr_cmd->ioarcb.read_ioadl_len =
906 cpu_to_be32(sizeof(struct ipr_ioadl_desc));
907 ipr_cmd->ioarcb.read_data_transfer_length = cpu_to_be32(len);
909 ipr_cmd->ioarcb.ioadl_len =
910 cpu_to_be32(sizeof(struct ipr_ioadl_desc));
911 ipr_cmd->ioarcb.data_transfer_length = cpu_to_be32(len);
917 * ipr_send_blocking_cmd - Send command and sleep on its completion.
918 * @ipr_cmd: ipr command struct
919 * @timeout_func: function to invoke if command times out
925 static void ipr_send_blocking_cmd(struct ipr_cmnd *ipr_cmd,
926 void (*timeout_func) (struct ipr_cmnd *ipr_cmd),
929 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
931 init_completion(&ipr_cmd->completion);
932 ipr_do_req(ipr_cmd, ipr_internal_cmd_done, timeout_func, timeout);
934 spin_unlock_irq(ioa_cfg->host->host_lock);
935 wait_for_completion(&ipr_cmd->completion);
936 spin_lock_irq(ioa_cfg->host->host_lock);
940 * ipr_send_hcam - Send an HCAM to the adapter.
941 * @ioa_cfg: ioa config struct
943 * @hostrcb: hostrcb struct
945 * This function will send a Host Controlled Async command to the adapter.
946 * If HCAMs are currently not allowed to be issued to the adapter, it will
947 * place the hostrcb on the free queue.
952 static void ipr_send_hcam(struct ipr_ioa_cfg *ioa_cfg, u8 type,
953 struct ipr_hostrcb *hostrcb)
955 struct ipr_cmnd *ipr_cmd;
956 struct ipr_ioarcb *ioarcb;
958 if (ioa_cfg->allow_cmds) {
959 ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg);
960 list_add_tail(&ipr_cmd->queue, &ioa_cfg->pending_q);
961 list_add_tail(&hostrcb->queue, &ioa_cfg->hostrcb_pending_q);
963 ipr_cmd->u.hostrcb = hostrcb;
964 ioarcb = &ipr_cmd->ioarcb;
966 ioarcb->res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE);
967 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_HCAM;
968 ioarcb->cmd_pkt.cdb[0] = IPR_HOST_CONTROLLED_ASYNC;
969 ioarcb->cmd_pkt.cdb[1] = type;
970 ioarcb->cmd_pkt.cdb[7] = (sizeof(hostrcb->hcam) >> 8) & 0xff;
971 ioarcb->cmd_pkt.cdb[8] = sizeof(hostrcb->hcam) & 0xff;
973 ipr_init_ioadl(ipr_cmd, hostrcb->hostrcb_dma,
974 sizeof(hostrcb->hcam), IPR_IOADL_FLAGS_READ_LAST);
976 if (type == IPR_HCAM_CDB_OP_CODE_CONFIG_CHANGE)
977 ipr_cmd->done = ipr_process_ccn;
979 ipr_cmd->done = ipr_process_error;
981 ipr_trc_hook(ipr_cmd, IPR_TRACE_START, IPR_IOA_RES_ADDR);
985 ipr_send_command(ipr_cmd);
987 list_add_tail(&hostrcb->queue, &ioa_cfg->hostrcb_free_q);
992 * ipr_update_ata_class - Update the ata class in the resource entry
993 * @res: resource entry struct
994 * @proto: cfgte device bus protocol value
999 static void ipr_update_ata_class(struct ipr_resource_entry *res, unsigned int proto)
1002 case IPR_PROTO_SATA:
1003 case IPR_PROTO_SAS_STP:
1004 res->ata_class = ATA_DEV_ATA;
1006 case IPR_PROTO_SATA_ATAPI:
1007 case IPR_PROTO_SAS_STP_ATAPI:
1008 res->ata_class = ATA_DEV_ATAPI;
1011 res->ata_class = ATA_DEV_UNKNOWN;
1017 * ipr_init_res_entry - Initialize a resource entry struct.
1018 * @res: resource entry struct
1019 * @cfgtew: config table entry wrapper struct
1024 static void ipr_init_res_entry(struct ipr_resource_entry *res,
1025 struct ipr_config_table_entry_wrapper *cfgtew)
1029 struct ipr_ioa_cfg *ioa_cfg = res->ioa_cfg;
1030 struct ipr_resource_entry *gscsi_res = NULL;
1032 res->needs_sync_complete = 0;
1035 res->del_from_ml = 0;
1036 res->resetting_device = 0;
1038 res->sata_port = NULL;
1040 if (ioa_cfg->sis64) {
1041 proto = cfgtew->u.cfgte64->proto;
1042 res->res_flags = cfgtew->u.cfgte64->res_flags;
1043 res->qmodel = IPR_QUEUEING_MODEL64(res);
1044 res->type = cfgtew->u.cfgte64->res_type;
1046 memcpy(res->res_path, &cfgtew->u.cfgte64->res_path,
1047 sizeof(res->res_path));
1050 res->lun = scsilun_to_int(&res->dev_lun);
1052 if (res->type == IPR_RES_TYPE_GENERIC_SCSI) {
1053 list_for_each_entry(gscsi_res, &ioa_cfg->used_res_q, queue) {
1054 if (gscsi_res->dev_id == cfgtew->u.cfgte64->dev_id) {
1056 res->target = gscsi_res->target;
1061 res->target = find_first_zero_bit(ioa_cfg->target_ids,
1062 ioa_cfg->max_devs_supported);
1063 set_bit(res->target, ioa_cfg->target_ids);
1066 memcpy(&res->dev_lun.scsi_lun, &cfgtew->u.cfgte64->lun,
1067 sizeof(res->dev_lun.scsi_lun));
1068 } else if (res->type == IPR_RES_TYPE_IOAFP) {
1069 res->bus = IPR_IOAFP_VIRTUAL_BUS;
1071 } else if (res->type == IPR_RES_TYPE_ARRAY) {
1072 res->bus = IPR_ARRAY_VIRTUAL_BUS;
1073 res->target = find_first_zero_bit(ioa_cfg->array_ids,
1074 ioa_cfg->max_devs_supported);
1075 set_bit(res->target, ioa_cfg->array_ids);
1076 } else if (res->type == IPR_RES_TYPE_VOLUME_SET) {
1077 res->bus = IPR_VSET_VIRTUAL_BUS;
1078 res->target = find_first_zero_bit(ioa_cfg->vset_ids,
1079 ioa_cfg->max_devs_supported);
1080 set_bit(res->target, ioa_cfg->vset_ids);
1082 res->target = find_first_zero_bit(ioa_cfg->target_ids,
1083 ioa_cfg->max_devs_supported);
1084 set_bit(res->target, ioa_cfg->target_ids);
1087 proto = cfgtew->u.cfgte->proto;
1088 res->qmodel = IPR_QUEUEING_MODEL(res);
1089 res->flags = cfgtew->u.cfgte->flags;
1090 if (res->flags & IPR_IS_IOA_RESOURCE)
1091 res->type = IPR_RES_TYPE_IOAFP;
1093 res->type = cfgtew->u.cfgte->rsvd_subtype & 0x0f;
1095 res->bus = cfgtew->u.cfgte->res_addr.bus;
1096 res->target = cfgtew->u.cfgte->res_addr.target;
1097 res->lun = cfgtew->u.cfgte->res_addr.lun;
1100 ipr_update_ata_class(res, proto);
1104 * ipr_is_same_device - Determine if two devices are the same.
1105 * @res: resource entry struct
1106 * @cfgtew: config table entry wrapper struct
1109 * 1 if the devices are the same / 0 otherwise
1111 static int ipr_is_same_device(struct ipr_resource_entry *res,
1112 struct ipr_config_table_entry_wrapper *cfgtew)
1114 if (res->ioa_cfg->sis64) {
1115 if (!memcmp(&res->dev_id, &cfgtew->u.cfgte64->dev_id,
1116 sizeof(cfgtew->u.cfgte64->dev_id)) &&
1117 !memcmp(&res->lun, &cfgtew->u.cfgte64->lun,
1118 sizeof(cfgtew->u.cfgte64->lun))) {
1122 if (res->bus == cfgtew->u.cfgte->res_addr.bus &&
1123 res->target == cfgtew->u.cfgte->res_addr.target &&
1124 res->lun == cfgtew->u.cfgte->res_addr.lun)
1132 * ipr_format_resource_path - Format the resource path for printing.
1133 * @res_path: resource path
1139 static char *ipr_format_resource_path(u8 *res_path, char *buffer)
1143 sprintf(buffer, "%02X", res_path[0]);
1144 for (i=1; res_path[i] != 0xff; i++)
1145 sprintf(buffer, "%s-%02X", buffer, res_path[i]);
1151 * ipr_update_res_entry - Update the resource entry.
1152 * @res: resource entry struct
1153 * @cfgtew: config table entry wrapper struct
1158 static void ipr_update_res_entry(struct ipr_resource_entry *res,
1159 struct ipr_config_table_entry_wrapper *cfgtew)
1161 char buffer[IPR_MAX_RES_PATH_LENGTH];
1165 if (res->ioa_cfg->sis64) {
1166 res->flags = cfgtew->u.cfgte64->flags;
1167 res->res_flags = cfgtew->u.cfgte64->res_flags;
1168 res->type = cfgtew->u.cfgte64->res_type & 0x0f;
1170 memcpy(&res->std_inq_data, &cfgtew->u.cfgte64->std_inq_data,
1171 sizeof(struct ipr_std_inq_data));
1173 res->qmodel = IPR_QUEUEING_MODEL64(res);
1174 proto = cfgtew->u.cfgte64->proto;
1175 res->res_handle = cfgtew->u.cfgte64->res_handle;
1176 res->dev_id = cfgtew->u.cfgte64->dev_id;
1178 memcpy(&res->dev_lun.scsi_lun, &cfgtew->u.cfgte64->lun,
1179 sizeof(res->dev_lun.scsi_lun));
1181 if (memcmp(res->res_path, &cfgtew->u.cfgte64->res_path,
1182 sizeof(res->res_path))) {
1183 memcpy(res->res_path, &cfgtew->u.cfgte64->res_path,
1184 sizeof(res->res_path));
1188 if (res->sdev && new_path)
1189 sdev_printk(KERN_INFO, res->sdev, "Resource path: %s\n",
1190 ipr_format_resource_path(&res->res_path[0], &buffer[0]));
1192 res->flags = cfgtew->u.cfgte->flags;
1193 if (res->flags & IPR_IS_IOA_RESOURCE)
1194 res->type = IPR_RES_TYPE_IOAFP;
1196 res->type = cfgtew->u.cfgte->rsvd_subtype & 0x0f;
1198 memcpy(&res->std_inq_data, &cfgtew->u.cfgte->std_inq_data,
1199 sizeof(struct ipr_std_inq_data));
1201 res->qmodel = IPR_QUEUEING_MODEL(res);
1202 proto = cfgtew->u.cfgte->proto;
1203 res->res_handle = cfgtew->u.cfgte->res_handle;
1206 ipr_update_ata_class(res, proto);
1210 * ipr_clear_res_target - Clear the bit in the bit map representing the target
1212 * @res: resource entry struct
1213 * @cfgtew: config table entry wrapper struct
1218 static void ipr_clear_res_target(struct ipr_resource_entry *res)
1220 struct ipr_resource_entry *gscsi_res = NULL;
1221 struct ipr_ioa_cfg *ioa_cfg = res->ioa_cfg;
1223 if (!ioa_cfg->sis64)
1226 if (res->bus == IPR_ARRAY_VIRTUAL_BUS)
1227 clear_bit(res->target, ioa_cfg->array_ids);
1228 else if (res->bus == IPR_VSET_VIRTUAL_BUS)
1229 clear_bit(res->target, ioa_cfg->vset_ids);
1230 else if (res->bus == 0 && res->type == IPR_RES_TYPE_GENERIC_SCSI) {
1231 list_for_each_entry(gscsi_res, &ioa_cfg->used_res_q, queue)
1232 if (gscsi_res->dev_id == res->dev_id && gscsi_res != res)
1234 clear_bit(res->target, ioa_cfg->target_ids);
1236 } else if (res->bus == 0)
1237 clear_bit(res->target, ioa_cfg->target_ids);
1241 * ipr_handle_config_change - Handle a config change from the adapter
1242 * @ioa_cfg: ioa config struct
1248 static void ipr_handle_config_change(struct ipr_ioa_cfg *ioa_cfg,
1249 struct ipr_hostrcb *hostrcb)
1251 struct ipr_resource_entry *res = NULL;
1252 struct ipr_config_table_entry_wrapper cfgtew;
1253 __be32 cc_res_handle;
1257 if (ioa_cfg->sis64) {
1258 cfgtew.u.cfgte64 = &hostrcb->hcam.u.ccn.u.cfgte64;
1259 cc_res_handle = cfgtew.u.cfgte64->res_handle;
1261 cfgtew.u.cfgte = &hostrcb->hcam.u.ccn.u.cfgte;
1262 cc_res_handle = cfgtew.u.cfgte->res_handle;
1265 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) {
1266 if (res->res_handle == cc_res_handle) {
1273 if (list_empty(&ioa_cfg->free_res_q)) {
1274 ipr_send_hcam(ioa_cfg,
1275 IPR_HCAM_CDB_OP_CODE_CONFIG_CHANGE,
1280 res = list_entry(ioa_cfg->free_res_q.next,
1281 struct ipr_resource_entry, queue);
1283 list_del(&res->queue);
1284 ipr_init_res_entry(res, &cfgtew);
1285 list_add_tail(&res->queue, &ioa_cfg->used_res_q);
1288 ipr_update_res_entry(res, &cfgtew);
1290 if (hostrcb->hcam.notify_type == IPR_HOST_RCB_NOTIF_TYPE_REM_ENTRY) {
1292 res->del_from_ml = 1;
1293 res->res_handle = IPR_INVALID_RES_HANDLE;
1294 if (ioa_cfg->allow_ml_add_del)
1295 schedule_work(&ioa_cfg->work_q);
1297 ipr_clear_res_target(res);
1298 list_move_tail(&res->queue, &ioa_cfg->free_res_q);
1300 } else if (!res->sdev) {
1302 if (ioa_cfg->allow_ml_add_del)
1303 schedule_work(&ioa_cfg->work_q);
1306 ipr_send_hcam(ioa_cfg, IPR_HCAM_CDB_OP_CODE_CONFIG_CHANGE, hostrcb);
1310 * ipr_process_ccn - Op done function for a CCN.
1311 * @ipr_cmd: ipr command struct
1313 * This function is the op done function for a configuration
1314 * change notification host controlled async from the adapter.
1319 static void ipr_process_ccn(struct ipr_cmnd *ipr_cmd)
1321 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
1322 struct ipr_hostrcb *hostrcb = ipr_cmd->u.hostrcb;
1323 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
1325 list_del(&hostrcb->queue);
1326 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
1329 if (ioasc != IPR_IOASC_IOA_WAS_RESET)
1330 dev_err(&ioa_cfg->pdev->dev,
1331 "Host RCB failed with IOASC: 0x%08X\n", ioasc);
1333 ipr_send_hcam(ioa_cfg, IPR_HCAM_CDB_OP_CODE_CONFIG_CHANGE, hostrcb);
1335 ipr_handle_config_change(ioa_cfg, hostrcb);
1340 * strip_and_pad_whitespace - Strip and pad trailing whitespace.
1341 * @i: index into buffer
1342 * @buf: string to modify
1344 * This function will strip all trailing whitespace, pad the end
1345 * of the string with a single space, and NULL terminate the string.
1348 * new length of string
1350 static int strip_and_pad_whitespace(int i, char *buf)
1352 while (i && buf[i] == ' ')
1360 * ipr_log_vpd_compact - Log the passed extended VPD compactly.
1361 * @prefix: string to print at start of printk
1362 * @hostrcb: hostrcb pointer
1363 * @vpd: vendor/product id/sn struct
1368 static void ipr_log_vpd_compact(char *prefix, struct ipr_hostrcb *hostrcb,
1369 struct ipr_vpd *vpd)
1371 char buffer[IPR_VENDOR_ID_LEN + IPR_PROD_ID_LEN + IPR_SERIAL_NUM_LEN + 3];
1374 memcpy(buffer, vpd->vpids.vendor_id, IPR_VENDOR_ID_LEN);
1375 i = strip_and_pad_whitespace(IPR_VENDOR_ID_LEN - 1, buffer);
1377 memcpy(&buffer[i], vpd->vpids.product_id, IPR_PROD_ID_LEN);
1378 i = strip_and_pad_whitespace(i + IPR_PROD_ID_LEN - 1, buffer);
1380 memcpy(&buffer[i], vpd->sn, IPR_SERIAL_NUM_LEN);
1381 buffer[IPR_SERIAL_NUM_LEN + i] = '\0';
1383 ipr_hcam_err(hostrcb, "%s VPID/SN: %s\n", prefix, buffer);
1387 * ipr_log_vpd - Log the passed VPD to the error log.
1388 * @vpd: vendor/product id/sn struct
1393 static void ipr_log_vpd(struct ipr_vpd *vpd)
1395 char buffer[IPR_VENDOR_ID_LEN + IPR_PROD_ID_LEN
1396 + IPR_SERIAL_NUM_LEN];
1398 memcpy(buffer, vpd->vpids.vendor_id, IPR_VENDOR_ID_LEN);
1399 memcpy(buffer + IPR_VENDOR_ID_LEN, vpd->vpids.product_id,
1401 buffer[IPR_VENDOR_ID_LEN + IPR_PROD_ID_LEN] = '\0';
1402 ipr_err("Vendor/Product ID: %s\n", buffer);
1404 memcpy(buffer, vpd->sn, IPR_SERIAL_NUM_LEN);
1405 buffer[IPR_SERIAL_NUM_LEN] = '\0';
1406 ipr_err(" Serial Number: %s\n", buffer);
1410 * ipr_log_ext_vpd_compact - Log the passed extended VPD compactly.
1411 * @prefix: string to print at start of printk
1412 * @hostrcb: hostrcb pointer
1413 * @vpd: vendor/product id/sn/wwn struct
1418 static void ipr_log_ext_vpd_compact(char *prefix, struct ipr_hostrcb *hostrcb,
1419 struct ipr_ext_vpd *vpd)
1421 ipr_log_vpd_compact(prefix, hostrcb, &vpd->vpd);
1422 ipr_hcam_err(hostrcb, "%s WWN: %08X%08X\n", prefix,
1423 be32_to_cpu(vpd->wwid[0]), be32_to_cpu(vpd->wwid[1]));
1427 * ipr_log_ext_vpd - Log the passed extended VPD to the error log.
1428 * @vpd: vendor/product id/sn/wwn struct
1433 static void ipr_log_ext_vpd(struct ipr_ext_vpd *vpd)
1435 ipr_log_vpd(&vpd->vpd);
1436 ipr_err(" WWN: %08X%08X\n", be32_to_cpu(vpd->wwid[0]),
1437 be32_to_cpu(vpd->wwid[1]));
1441 * ipr_log_enhanced_cache_error - Log a cache error.
1442 * @ioa_cfg: ioa config struct
1443 * @hostrcb: hostrcb struct
1448 static void ipr_log_enhanced_cache_error(struct ipr_ioa_cfg *ioa_cfg,
1449 struct ipr_hostrcb *hostrcb)
1451 struct ipr_hostrcb_type_12_error *error;
1454 error = &hostrcb->hcam.u.error64.u.type_12_error;
1456 error = &hostrcb->hcam.u.error.u.type_12_error;
1458 ipr_err("-----Current Configuration-----\n");
1459 ipr_err("Cache Directory Card Information:\n");
1460 ipr_log_ext_vpd(&error->ioa_vpd);
1461 ipr_err("Adapter Card Information:\n");
1462 ipr_log_ext_vpd(&error->cfc_vpd);
1464 ipr_err("-----Expected Configuration-----\n");
1465 ipr_err("Cache Directory Card Information:\n");
1466 ipr_log_ext_vpd(&error->ioa_last_attached_to_cfc_vpd);
1467 ipr_err("Adapter Card Information:\n");
1468 ipr_log_ext_vpd(&error->cfc_last_attached_to_ioa_vpd);
1470 ipr_err("Additional IOA Data: %08X %08X %08X\n",
1471 be32_to_cpu(error->ioa_data[0]),
1472 be32_to_cpu(error->ioa_data[1]),
1473 be32_to_cpu(error->ioa_data[2]));
1477 * ipr_log_cache_error - Log a cache error.
1478 * @ioa_cfg: ioa config struct
1479 * @hostrcb: hostrcb struct
1484 static void ipr_log_cache_error(struct ipr_ioa_cfg *ioa_cfg,
1485 struct ipr_hostrcb *hostrcb)
1487 struct ipr_hostrcb_type_02_error *error =
1488 &hostrcb->hcam.u.error.u.type_02_error;
1490 ipr_err("-----Current Configuration-----\n");
1491 ipr_err("Cache Directory Card Information:\n");
1492 ipr_log_vpd(&error->ioa_vpd);
1493 ipr_err("Adapter Card Information:\n");
1494 ipr_log_vpd(&error->cfc_vpd);
1496 ipr_err("-----Expected Configuration-----\n");
1497 ipr_err("Cache Directory Card Information:\n");
1498 ipr_log_vpd(&error->ioa_last_attached_to_cfc_vpd);
1499 ipr_err("Adapter Card Information:\n");
1500 ipr_log_vpd(&error->cfc_last_attached_to_ioa_vpd);
1502 ipr_err("Additional IOA Data: %08X %08X %08X\n",
1503 be32_to_cpu(error->ioa_data[0]),
1504 be32_to_cpu(error->ioa_data[1]),
1505 be32_to_cpu(error->ioa_data[2]));
1509 * ipr_log_enhanced_config_error - Log a configuration error.
1510 * @ioa_cfg: ioa config struct
1511 * @hostrcb: hostrcb struct
1516 static void ipr_log_enhanced_config_error(struct ipr_ioa_cfg *ioa_cfg,
1517 struct ipr_hostrcb *hostrcb)
1519 int errors_logged, i;
1520 struct ipr_hostrcb_device_data_entry_enhanced *dev_entry;
1521 struct ipr_hostrcb_type_13_error *error;
1523 error = &hostrcb->hcam.u.error.u.type_13_error;
1524 errors_logged = be32_to_cpu(error->errors_logged);
1526 ipr_err("Device Errors Detected/Logged: %d/%d\n",
1527 be32_to_cpu(error->errors_detected), errors_logged);
1529 dev_entry = error->dev;
1531 for (i = 0; i < errors_logged; i++, dev_entry++) {
1534 ipr_phys_res_err(ioa_cfg, dev_entry->dev_res_addr, "Device %d", i + 1);
1535 ipr_log_ext_vpd(&dev_entry->vpd);
1537 ipr_err("-----New Device Information-----\n");
1538 ipr_log_ext_vpd(&dev_entry->new_vpd);
1540 ipr_err("Cache Directory Card Information:\n");
1541 ipr_log_ext_vpd(&dev_entry->ioa_last_with_dev_vpd);
1543 ipr_err("Adapter Card Information:\n");
1544 ipr_log_ext_vpd(&dev_entry->cfc_last_with_dev_vpd);
1549 * ipr_log_sis64_config_error - Log a device error.
1550 * @ioa_cfg: ioa config struct
1551 * @hostrcb: hostrcb struct
1556 static void ipr_log_sis64_config_error(struct ipr_ioa_cfg *ioa_cfg,
1557 struct ipr_hostrcb *hostrcb)
1559 int errors_logged, i;
1560 struct ipr_hostrcb64_device_data_entry_enhanced *dev_entry;
1561 struct ipr_hostrcb_type_23_error *error;
1562 char buffer[IPR_MAX_RES_PATH_LENGTH];
1564 error = &hostrcb->hcam.u.error64.u.type_23_error;
1565 errors_logged = be32_to_cpu(error->errors_logged);
1567 ipr_err("Device Errors Detected/Logged: %d/%d\n",
1568 be32_to_cpu(error->errors_detected), errors_logged);
1570 dev_entry = error->dev;
1572 for (i = 0; i < errors_logged; i++, dev_entry++) {
1575 ipr_err("Device %d : %s", i + 1,
1576 ipr_format_resource_path(&dev_entry->res_path[0], &buffer[0]));
1577 ipr_log_ext_vpd(&dev_entry->vpd);
1579 ipr_err("-----New Device Information-----\n");
1580 ipr_log_ext_vpd(&dev_entry->new_vpd);
1582 ipr_err("Cache Directory Card Information:\n");
1583 ipr_log_ext_vpd(&dev_entry->ioa_last_with_dev_vpd);
1585 ipr_err("Adapter Card Information:\n");
1586 ipr_log_ext_vpd(&dev_entry->cfc_last_with_dev_vpd);
1591 * ipr_log_config_error - Log a configuration error.
1592 * @ioa_cfg: ioa config struct
1593 * @hostrcb: hostrcb struct
1598 static void ipr_log_config_error(struct ipr_ioa_cfg *ioa_cfg,
1599 struct ipr_hostrcb *hostrcb)
1601 int errors_logged, i;
1602 struct ipr_hostrcb_device_data_entry *dev_entry;
1603 struct ipr_hostrcb_type_03_error *error;
1605 error = &hostrcb->hcam.u.error.u.type_03_error;
1606 errors_logged = be32_to_cpu(error->errors_logged);
1608 ipr_err("Device Errors Detected/Logged: %d/%d\n",
1609 be32_to_cpu(error->errors_detected), errors_logged);
1611 dev_entry = error->dev;
1613 for (i = 0; i < errors_logged; i++, dev_entry++) {
1616 ipr_phys_res_err(ioa_cfg, dev_entry->dev_res_addr, "Device %d", i + 1);
1617 ipr_log_vpd(&dev_entry->vpd);
1619 ipr_err("-----New Device Information-----\n");
1620 ipr_log_vpd(&dev_entry->new_vpd);
1622 ipr_err("Cache Directory Card Information:\n");
1623 ipr_log_vpd(&dev_entry->ioa_last_with_dev_vpd);
1625 ipr_err("Adapter Card Information:\n");
1626 ipr_log_vpd(&dev_entry->cfc_last_with_dev_vpd);
1628 ipr_err("Additional IOA Data: %08X %08X %08X %08X %08X\n",
1629 be32_to_cpu(dev_entry->ioa_data[0]),
1630 be32_to_cpu(dev_entry->ioa_data[1]),
1631 be32_to_cpu(dev_entry->ioa_data[2]),
1632 be32_to_cpu(dev_entry->ioa_data[3]),
1633 be32_to_cpu(dev_entry->ioa_data[4]));
1638 * ipr_log_enhanced_array_error - Log an array configuration error.
1639 * @ioa_cfg: ioa config struct
1640 * @hostrcb: hostrcb struct
1645 static void ipr_log_enhanced_array_error(struct ipr_ioa_cfg *ioa_cfg,
1646 struct ipr_hostrcb *hostrcb)
1649 struct ipr_hostrcb_type_14_error *error;
1650 struct ipr_hostrcb_array_data_entry_enhanced *array_entry;
1651 const u8 zero_sn[IPR_SERIAL_NUM_LEN] = { [0 ... IPR_SERIAL_NUM_LEN-1] = '0' };
1653 error = &hostrcb->hcam.u.error.u.type_14_error;
1657 ipr_err("RAID %s Array Configuration: %d:%d:%d:%d\n",
1658 error->protection_level,
1659 ioa_cfg->host->host_no,
1660 error->last_func_vset_res_addr.bus,
1661 error->last_func_vset_res_addr.target,
1662 error->last_func_vset_res_addr.lun);
1666 array_entry = error->array_member;
1667 num_entries = min_t(u32, be32_to_cpu(error->num_entries),
1668 sizeof(error->array_member));
1670 for (i = 0; i < num_entries; i++, array_entry++) {
1671 if (!memcmp(array_entry->vpd.vpd.sn, zero_sn, IPR_SERIAL_NUM_LEN))
1674 if (be32_to_cpu(error->exposed_mode_adn) == i)
1675 ipr_err("Exposed Array Member %d:\n", i);
1677 ipr_err("Array Member %d:\n", i);
1679 ipr_log_ext_vpd(&array_entry->vpd);
1680 ipr_phys_res_err(ioa_cfg, array_entry->dev_res_addr, "Current Location");
1681 ipr_phys_res_err(ioa_cfg, array_entry->expected_dev_res_addr,
1682 "Expected Location");
1689 * ipr_log_array_error - Log an array configuration error.
1690 * @ioa_cfg: ioa config struct
1691 * @hostrcb: hostrcb struct
1696 static void ipr_log_array_error(struct ipr_ioa_cfg *ioa_cfg,
1697 struct ipr_hostrcb *hostrcb)
1700 struct ipr_hostrcb_type_04_error *error;
1701 struct ipr_hostrcb_array_data_entry *array_entry;
1702 const u8 zero_sn[IPR_SERIAL_NUM_LEN] = { [0 ... IPR_SERIAL_NUM_LEN-1] = '0' };
1704 error = &hostrcb->hcam.u.error.u.type_04_error;
1708 ipr_err("RAID %s Array Configuration: %d:%d:%d:%d\n",
1709 error->protection_level,
1710 ioa_cfg->host->host_no,
1711 error->last_func_vset_res_addr.bus,
1712 error->last_func_vset_res_addr.target,
1713 error->last_func_vset_res_addr.lun);
1717 array_entry = error->array_member;
1719 for (i = 0; i < 18; i++) {
1720 if (!memcmp(array_entry->vpd.sn, zero_sn, IPR_SERIAL_NUM_LEN))
1723 if (be32_to_cpu(error->exposed_mode_adn) == i)
1724 ipr_err("Exposed Array Member %d:\n", i);
1726 ipr_err("Array Member %d:\n", i);
1728 ipr_log_vpd(&array_entry->vpd);
1730 ipr_phys_res_err(ioa_cfg, array_entry->dev_res_addr, "Current Location");
1731 ipr_phys_res_err(ioa_cfg, array_entry->expected_dev_res_addr,
1732 "Expected Location");
1737 array_entry = error->array_member2;
1744 * ipr_log_hex_data - Log additional hex IOA error data.
1745 * @ioa_cfg: ioa config struct
1746 * @data: IOA error data
1752 static void ipr_log_hex_data(struct ipr_ioa_cfg *ioa_cfg, u32 *data, int len)
1759 if (ioa_cfg->log_level <= IPR_DEFAULT_LOG_LEVEL)
1760 len = min_t(int, len, IPR_DEFAULT_MAX_ERROR_DUMP);
1762 for (i = 0; i < len / 4; i += 4) {
1763 ipr_err("%08X: %08X %08X %08X %08X\n", i*4,
1764 be32_to_cpu(data[i]),
1765 be32_to_cpu(data[i+1]),
1766 be32_to_cpu(data[i+2]),
1767 be32_to_cpu(data[i+3]));
1772 * ipr_log_enhanced_dual_ioa_error - Log an enhanced dual adapter error.
1773 * @ioa_cfg: ioa config struct
1774 * @hostrcb: hostrcb struct
1779 static void ipr_log_enhanced_dual_ioa_error(struct ipr_ioa_cfg *ioa_cfg,
1780 struct ipr_hostrcb *hostrcb)
1782 struct ipr_hostrcb_type_17_error *error;
1785 error = &hostrcb->hcam.u.error64.u.type_17_error;
1787 error = &hostrcb->hcam.u.error.u.type_17_error;
1789 error->failure_reason[sizeof(error->failure_reason) - 1] = '\0';
1790 strim(error->failure_reason);
1792 ipr_hcam_err(hostrcb, "%s [PRC: %08X]\n", error->failure_reason,
1793 be32_to_cpu(hostrcb->hcam.u.error.prc));
1794 ipr_log_ext_vpd_compact("Remote IOA", hostrcb, &error->vpd);
1795 ipr_log_hex_data(ioa_cfg, error->data,
1796 be32_to_cpu(hostrcb->hcam.length) -
1797 (offsetof(struct ipr_hostrcb_error, u) +
1798 offsetof(struct ipr_hostrcb_type_17_error, data)));
1802 * ipr_log_dual_ioa_error - Log a dual adapter error.
1803 * @ioa_cfg: ioa config struct
1804 * @hostrcb: hostrcb struct
1809 static void ipr_log_dual_ioa_error(struct ipr_ioa_cfg *ioa_cfg,
1810 struct ipr_hostrcb *hostrcb)
1812 struct ipr_hostrcb_type_07_error *error;
1814 error = &hostrcb->hcam.u.error.u.type_07_error;
1815 error->failure_reason[sizeof(error->failure_reason) - 1] = '\0';
1816 strim(error->failure_reason);
1818 ipr_hcam_err(hostrcb, "%s [PRC: %08X]\n", error->failure_reason,
1819 be32_to_cpu(hostrcb->hcam.u.error.prc));
1820 ipr_log_vpd_compact("Remote IOA", hostrcb, &error->vpd);
1821 ipr_log_hex_data(ioa_cfg, error->data,
1822 be32_to_cpu(hostrcb->hcam.length) -
1823 (offsetof(struct ipr_hostrcb_error, u) +
1824 offsetof(struct ipr_hostrcb_type_07_error, data)));
1827 static const struct {
1830 } path_active_desc[] = {
1831 { IPR_PATH_NO_INFO, "Path" },
1832 { IPR_PATH_ACTIVE, "Active path" },
1833 { IPR_PATH_NOT_ACTIVE, "Inactive path" }
1836 static const struct {
1839 } path_state_desc[] = {
1840 { IPR_PATH_STATE_NO_INFO, "has no path state information available" },
1841 { IPR_PATH_HEALTHY, "is healthy" },
1842 { IPR_PATH_DEGRADED, "is degraded" },
1843 { IPR_PATH_FAILED, "is failed" }
1847 * ipr_log_fabric_path - Log a fabric path error
1848 * @hostrcb: hostrcb struct
1849 * @fabric: fabric descriptor
1854 static void ipr_log_fabric_path(struct ipr_hostrcb *hostrcb,
1855 struct ipr_hostrcb_fabric_desc *fabric)
1858 u8 path_state = fabric->path_state;
1859 u8 active = path_state & IPR_PATH_ACTIVE_MASK;
1860 u8 state = path_state & IPR_PATH_STATE_MASK;
1862 for (i = 0; i < ARRAY_SIZE(path_active_desc); i++) {
1863 if (path_active_desc[i].active != active)
1866 for (j = 0; j < ARRAY_SIZE(path_state_desc); j++) {
1867 if (path_state_desc[j].state != state)
1870 if (fabric->cascaded_expander == 0xff && fabric->phy == 0xff) {
1871 ipr_hcam_err(hostrcb, "%s %s: IOA Port=%d\n",
1872 path_active_desc[i].desc, path_state_desc[j].desc,
1874 } else if (fabric->cascaded_expander == 0xff) {
1875 ipr_hcam_err(hostrcb, "%s %s: IOA Port=%d, Phy=%d\n",
1876 path_active_desc[i].desc, path_state_desc[j].desc,
1877 fabric->ioa_port, fabric->phy);
1878 } else if (fabric->phy == 0xff) {
1879 ipr_hcam_err(hostrcb, "%s %s: IOA Port=%d, Cascade=%d\n",
1880 path_active_desc[i].desc, path_state_desc[j].desc,
1881 fabric->ioa_port, fabric->cascaded_expander);
1883 ipr_hcam_err(hostrcb, "%s %s: IOA Port=%d, Cascade=%d, Phy=%d\n",
1884 path_active_desc[i].desc, path_state_desc[j].desc,
1885 fabric->ioa_port, fabric->cascaded_expander, fabric->phy);
1891 ipr_err("Path state=%02X IOA Port=%d Cascade=%d Phy=%d\n", path_state,
1892 fabric->ioa_port, fabric->cascaded_expander, fabric->phy);
1896 * ipr_log64_fabric_path - Log a fabric path error
1897 * @hostrcb: hostrcb struct
1898 * @fabric: fabric descriptor
1903 static void ipr_log64_fabric_path(struct ipr_hostrcb *hostrcb,
1904 struct ipr_hostrcb64_fabric_desc *fabric)
1907 u8 path_state = fabric->path_state;
1908 u8 active = path_state & IPR_PATH_ACTIVE_MASK;
1909 u8 state = path_state & IPR_PATH_STATE_MASK;
1910 char buffer[IPR_MAX_RES_PATH_LENGTH];
1912 for (i = 0; i < ARRAY_SIZE(path_active_desc); i++) {
1913 if (path_active_desc[i].active != active)
1916 for (j = 0; j < ARRAY_SIZE(path_state_desc); j++) {
1917 if (path_state_desc[j].state != state)
1920 ipr_hcam_err(hostrcb, "%s %s: Resource Path=%s\n",
1921 path_active_desc[i].desc, path_state_desc[j].desc,
1922 ipr_format_resource_path(&fabric->res_path[0], &buffer[0]));
1927 ipr_err("Path state=%02X Resource Path=%s\n", path_state,
1928 ipr_format_resource_path(&fabric->res_path[0], &buffer[0]));
1931 static const struct {
1934 } path_type_desc[] = {
1935 { IPR_PATH_CFG_IOA_PORT, "IOA port" },
1936 { IPR_PATH_CFG_EXP_PORT, "Expander port" },
1937 { IPR_PATH_CFG_DEVICE_PORT, "Device port" },
1938 { IPR_PATH_CFG_DEVICE_LUN, "Device LUN" }
1941 static const struct {
1944 } path_status_desc[] = {
1945 { IPR_PATH_CFG_NO_PROB, "Functional" },
1946 { IPR_PATH_CFG_DEGRADED, "Degraded" },
1947 { IPR_PATH_CFG_FAILED, "Failed" },
1948 { IPR_PATH_CFG_SUSPECT, "Suspect" },
1949 { IPR_PATH_NOT_DETECTED, "Missing" },
1950 { IPR_PATH_INCORRECT_CONN, "Incorrectly connected" }
1953 static const char *link_rate[] = {
1956 "phy reset problem",
1973 * ipr_log_path_elem - Log a fabric path element.
1974 * @hostrcb: hostrcb struct
1975 * @cfg: fabric path element struct
1980 static void ipr_log_path_elem(struct ipr_hostrcb *hostrcb,
1981 struct ipr_hostrcb_config_element *cfg)
1984 u8 type = cfg->type_status & IPR_PATH_CFG_TYPE_MASK;
1985 u8 status = cfg->type_status & IPR_PATH_CFG_STATUS_MASK;
1987 if (type == IPR_PATH_CFG_NOT_EXIST)
1990 for (i = 0; i < ARRAY_SIZE(path_type_desc); i++) {
1991 if (path_type_desc[i].type != type)
1994 for (j = 0; j < ARRAY_SIZE(path_status_desc); j++) {
1995 if (path_status_desc[j].status != status)
1998 if (type == IPR_PATH_CFG_IOA_PORT) {
1999 ipr_hcam_err(hostrcb, "%s %s: Phy=%d, Link rate=%s, WWN=%08X%08X\n",
2000 path_status_desc[j].desc, path_type_desc[i].desc,
2001 cfg->phy, link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK],
2002 be32_to_cpu(cfg->wwid[0]), be32_to_cpu(cfg->wwid[1]));
2004 if (cfg->cascaded_expander == 0xff && cfg->phy == 0xff) {
2005 ipr_hcam_err(hostrcb, "%s %s: Link rate=%s, WWN=%08X%08X\n",
2006 path_status_desc[j].desc, path_type_desc[i].desc,
2007 link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK],
2008 be32_to_cpu(cfg->wwid[0]), be32_to_cpu(cfg->wwid[1]));
2009 } else if (cfg->cascaded_expander == 0xff) {
2010 ipr_hcam_err(hostrcb, "%s %s: Phy=%d, Link rate=%s, "
2011 "WWN=%08X%08X\n", path_status_desc[j].desc,
2012 path_type_desc[i].desc, cfg->phy,
2013 link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK],
2014 be32_to_cpu(cfg->wwid[0]), be32_to_cpu(cfg->wwid[1]));
2015 } else if (cfg->phy == 0xff) {
2016 ipr_hcam_err(hostrcb, "%s %s: Cascade=%d, Link rate=%s, "
2017 "WWN=%08X%08X\n", path_status_desc[j].desc,
2018 path_type_desc[i].desc, cfg->cascaded_expander,
2019 link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK],
2020 be32_to_cpu(cfg->wwid[0]), be32_to_cpu(cfg->wwid[1]));
2022 ipr_hcam_err(hostrcb, "%s %s: Cascade=%d, Phy=%d, Link rate=%s "
2023 "WWN=%08X%08X\n", path_status_desc[j].desc,
2024 path_type_desc[i].desc, cfg->cascaded_expander, cfg->phy,
2025 link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK],
2026 be32_to_cpu(cfg->wwid[0]), be32_to_cpu(cfg->wwid[1]));
2033 ipr_hcam_err(hostrcb, "Path element=%02X: Cascade=%d Phy=%d Link rate=%s "
2034 "WWN=%08X%08X\n", cfg->type_status, cfg->cascaded_expander, cfg->phy,
2035 link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK],
2036 be32_to_cpu(cfg->wwid[0]), be32_to_cpu(cfg->wwid[1]));
2040 * ipr_log64_path_elem - Log a fabric path element.
2041 * @hostrcb: hostrcb struct
2042 * @cfg: fabric path element struct
2047 static void ipr_log64_path_elem(struct ipr_hostrcb *hostrcb,
2048 struct ipr_hostrcb64_config_element *cfg)
2051 u8 desc_id = cfg->descriptor_id & IPR_DESCRIPTOR_MASK;
2052 u8 type = cfg->type_status & IPR_PATH_CFG_TYPE_MASK;
2053 u8 status = cfg->type_status & IPR_PATH_CFG_STATUS_MASK;
2054 char buffer[IPR_MAX_RES_PATH_LENGTH];
2056 if (type == IPR_PATH_CFG_NOT_EXIST || desc_id != IPR_DESCRIPTOR_SIS64)
2059 for (i = 0; i < ARRAY_SIZE(path_type_desc); i++) {
2060 if (path_type_desc[i].type != type)
2063 for (j = 0; j < ARRAY_SIZE(path_status_desc); j++) {
2064 if (path_status_desc[j].status != status)
2067 ipr_hcam_err(hostrcb, "%s %s: Resource Path=%s, Link rate=%s, WWN=%08X%08X\n",
2068 path_status_desc[j].desc, path_type_desc[i].desc,
2069 ipr_format_resource_path(&cfg->res_path[0], &buffer[0]),
2070 link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK],
2071 be32_to_cpu(cfg->wwid[0]), be32_to_cpu(cfg->wwid[1]));
2075 ipr_hcam_err(hostrcb, "Path element=%02X: Resource Path=%s, Link rate=%s "
2076 "WWN=%08X%08X\n", cfg->type_status,
2077 ipr_format_resource_path(&cfg->res_path[0], &buffer[0]),
2078 link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK],
2079 be32_to_cpu(cfg->wwid[0]), be32_to_cpu(cfg->wwid[1]));
2083 * ipr_log_fabric_error - Log a fabric error.
2084 * @ioa_cfg: ioa config struct
2085 * @hostrcb: hostrcb struct
2090 static void ipr_log_fabric_error(struct ipr_ioa_cfg *ioa_cfg,
2091 struct ipr_hostrcb *hostrcb)
2093 struct ipr_hostrcb_type_20_error *error;
2094 struct ipr_hostrcb_fabric_desc *fabric;
2095 struct ipr_hostrcb_config_element *cfg;
2098 error = &hostrcb->hcam.u.error.u.type_20_error;
2099 error->failure_reason[sizeof(error->failure_reason) - 1] = '\0';
2100 ipr_hcam_err(hostrcb, "%s\n", error->failure_reason);
2102 add_len = be32_to_cpu(hostrcb->hcam.length) -
2103 (offsetof(struct ipr_hostrcb_error, u) +
2104 offsetof(struct ipr_hostrcb_type_20_error, desc));
2106 for (i = 0, fabric = error->desc; i < error->num_entries; i++) {
2107 ipr_log_fabric_path(hostrcb, fabric);
2108 for_each_fabric_cfg(fabric, cfg)
2109 ipr_log_path_elem(hostrcb, cfg);
2111 add_len -= be16_to_cpu(fabric->length);
2112 fabric = (struct ipr_hostrcb_fabric_desc *)
2113 ((unsigned long)fabric + be16_to_cpu(fabric->length));
2116 ipr_log_hex_data(ioa_cfg, (u32 *)fabric, add_len);
2120 * ipr_log_sis64_array_error - Log a sis64 array error.
2121 * @ioa_cfg: ioa config struct
2122 * @hostrcb: hostrcb struct
2127 static void ipr_log_sis64_array_error(struct ipr_ioa_cfg *ioa_cfg,
2128 struct ipr_hostrcb *hostrcb)
2131 struct ipr_hostrcb_type_24_error *error;
2132 struct ipr_hostrcb64_array_data_entry *array_entry;
2133 char buffer[IPR_MAX_RES_PATH_LENGTH];
2134 const u8 zero_sn[IPR_SERIAL_NUM_LEN] = { [0 ... IPR_SERIAL_NUM_LEN-1] = '0' };
2136 error = &hostrcb->hcam.u.error64.u.type_24_error;
2140 ipr_err("RAID %s Array Configuration: %s\n",
2141 error->protection_level,
2142 ipr_format_resource_path(&error->last_res_path[0], &buffer[0]));
2146 array_entry = error->array_member;
2147 num_entries = min_t(u32, be32_to_cpu(error->num_entries),
2148 sizeof(error->array_member));
2150 for (i = 0; i < num_entries; i++, array_entry++) {
2152 if (!memcmp(array_entry->vpd.vpd.sn, zero_sn, IPR_SERIAL_NUM_LEN))
2155 if (error->exposed_mode_adn == i)
2156 ipr_err("Exposed Array Member %d:\n", i);
2158 ipr_err("Array Member %d:\n", i);
2160 ipr_err("Array Member %d:\n", i);
2161 ipr_log_ext_vpd(&array_entry->vpd);
2162 ipr_err("Current Location: %s",
2163 ipr_format_resource_path(&array_entry->res_path[0], &buffer[0]));
2164 ipr_err("Expected Location: %s",
2165 ipr_format_resource_path(&array_entry->expected_res_path[0], &buffer[0]));
2172 * ipr_log_sis64_fabric_error - Log a sis64 fabric error.
2173 * @ioa_cfg: ioa config struct
2174 * @hostrcb: hostrcb struct
2179 static void ipr_log_sis64_fabric_error(struct ipr_ioa_cfg *ioa_cfg,
2180 struct ipr_hostrcb *hostrcb)
2182 struct ipr_hostrcb_type_30_error *error;
2183 struct ipr_hostrcb64_fabric_desc *fabric;
2184 struct ipr_hostrcb64_config_element *cfg;
2187 error = &hostrcb->hcam.u.error64.u.type_30_error;
2189 error->failure_reason[sizeof(error->failure_reason) - 1] = '\0';
2190 ipr_hcam_err(hostrcb, "%s\n", error->failure_reason);
2192 add_len = be32_to_cpu(hostrcb->hcam.length) -
2193 (offsetof(struct ipr_hostrcb64_error, u) +
2194 offsetof(struct ipr_hostrcb_type_30_error, desc));
2196 for (i = 0, fabric = error->desc; i < error->num_entries; i++) {
2197 ipr_log64_fabric_path(hostrcb, fabric);
2198 for_each_fabric_cfg(fabric, cfg)
2199 ipr_log64_path_elem(hostrcb, cfg);
2201 add_len -= be16_to_cpu(fabric->length);
2202 fabric = (struct ipr_hostrcb64_fabric_desc *)
2203 ((unsigned long)fabric + be16_to_cpu(fabric->length));
2206 ipr_log_hex_data(ioa_cfg, (u32 *)fabric, add_len);
2210 * ipr_log_generic_error - Log an adapter error.
2211 * @ioa_cfg: ioa config struct
2212 * @hostrcb: hostrcb struct
2217 static void ipr_log_generic_error(struct ipr_ioa_cfg *ioa_cfg,
2218 struct ipr_hostrcb *hostrcb)
2220 ipr_log_hex_data(ioa_cfg, hostrcb->hcam.u.raw.data,
2221 be32_to_cpu(hostrcb->hcam.length));
2225 * ipr_get_error - Find the specfied IOASC in the ipr_error_table.
2228 * This function will return the index of into the ipr_error_table
2229 * for the specified IOASC. If the IOASC is not in the table,
2230 * 0 will be returned, which points to the entry used for unknown errors.
2233 * index into the ipr_error_table
2235 static u32 ipr_get_error(u32 ioasc)
2239 for (i = 0; i < ARRAY_SIZE(ipr_error_table); i++)
2240 if (ipr_error_table[i].ioasc == (ioasc & IPR_IOASC_IOASC_MASK))
2247 * ipr_handle_log_data - Log an adapter error.
2248 * @ioa_cfg: ioa config struct
2249 * @hostrcb: hostrcb struct
2251 * This function logs an adapter error to the system.
2256 static void ipr_handle_log_data(struct ipr_ioa_cfg *ioa_cfg,
2257 struct ipr_hostrcb *hostrcb)
2262 if (hostrcb->hcam.notify_type != IPR_HOST_RCB_NOTIF_TYPE_ERROR_LOG_ENTRY)
2265 if (hostrcb->hcam.notifications_lost == IPR_HOST_RCB_NOTIFICATIONS_LOST)
2266 dev_err(&ioa_cfg->pdev->dev, "Error notifications lost\n");
2269 ioasc = be32_to_cpu(hostrcb->hcam.u.error64.fd_ioasc);
2271 ioasc = be32_to_cpu(hostrcb->hcam.u.error.fd_ioasc);
2273 if (!ioa_cfg->sis64 && (ioasc == IPR_IOASC_BUS_WAS_RESET ||
2274 ioasc == IPR_IOASC_BUS_WAS_RESET_BY_OTHER)) {
2275 /* Tell the midlayer we had a bus reset so it will handle the UA properly */
2276 scsi_report_bus_reset(ioa_cfg->host,
2277 hostrcb->hcam.u.error.fd_res_addr.bus);
2280 error_index = ipr_get_error(ioasc);
2282 if (!ipr_error_table[error_index].log_hcam)
2285 ipr_hcam_err(hostrcb, "%s\n", ipr_error_table[error_index].error);
2287 /* Set indication we have logged an error */
2288 ioa_cfg->errors_logged++;
2290 if (ioa_cfg->log_level < ipr_error_table[error_index].log_hcam)
2292 if (be32_to_cpu(hostrcb->hcam.length) > sizeof(hostrcb->hcam.u.raw))
2293 hostrcb->hcam.length = cpu_to_be32(sizeof(hostrcb->hcam.u.raw));
2295 switch (hostrcb->hcam.overlay_id) {
2296 case IPR_HOST_RCB_OVERLAY_ID_2:
2297 ipr_log_cache_error(ioa_cfg, hostrcb);
2299 case IPR_HOST_RCB_OVERLAY_ID_3:
2300 ipr_log_config_error(ioa_cfg, hostrcb);
2302 case IPR_HOST_RCB_OVERLAY_ID_4:
2303 case IPR_HOST_RCB_OVERLAY_ID_6:
2304 ipr_log_array_error(ioa_cfg, hostrcb);
2306 case IPR_HOST_RCB_OVERLAY_ID_7:
2307 ipr_log_dual_ioa_error(ioa_cfg, hostrcb);
2309 case IPR_HOST_RCB_OVERLAY_ID_12:
2310 ipr_log_enhanced_cache_error(ioa_cfg, hostrcb);
2312 case IPR_HOST_RCB_OVERLAY_ID_13:
2313 ipr_log_enhanced_config_error(ioa_cfg, hostrcb);
2315 case IPR_HOST_RCB_OVERLAY_ID_14:
2316 case IPR_HOST_RCB_OVERLAY_ID_16:
2317 ipr_log_enhanced_array_error(ioa_cfg, hostrcb);
2319 case IPR_HOST_RCB_OVERLAY_ID_17:
2320 ipr_log_enhanced_dual_ioa_error(ioa_cfg, hostrcb);
2322 case IPR_HOST_RCB_OVERLAY_ID_20:
2323 ipr_log_fabric_error(ioa_cfg, hostrcb);
2325 case IPR_HOST_RCB_OVERLAY_ID_23:
2326 ipr_log_sis64_config_error(ioa_cfg, hostrcb);
2328 case IPR_HOST_RCB_OVERLAY_ID_24:
2329 case IPR_HOST_RCB_OVERLAY_ID_26:
2330 ipr_log_sis64_array_error(ioa_cfg, hostrcb);
2332 case IPR_HOST_RCB_OVERLAY_ID_30:
2333 ipr_log_sis64_fabric_error(ioa_cfg, hostrcb);
2335 case IPR_HOST_RCB_OVERLAY_ID_1:
2336 case IPR_HOST_RCB_OVERLAY_ID_DEFAULT:
2338 ipr_log_generic_error(ioa_cfg, hostrcb);
2344 * ipr_process_error - Op done function for an adapter error log.
2345 * @ipr_cmd: ipr command struct
2347 * This function is the op done function for an error log host
2348 * controlled async from the adapter. It will log the error and
2349 * send the HCAM back to the adapter.
2354 static void ipr_process_error(struct ipr_cmnd *ipr_cmd)
2356 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
2357 struct ipr_hostrcb *hostrcb = ipr_cmd->u.hostrcb;
2358 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
2362 fd_ioasc = be32_to_cpu(hostrcb->hcam.u.error64.fd_ioasc);
2364 fd_ioasc = be32_to_cpu(hostrcb->hcam.u.error.fd_ioasc);
2366 list_del(&hostrcb->queue);
2367 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
2370 ipr_handle_log_data(ioa_cfg, hostrcb);
2371 if (fd_ioasc == IPR_IOASC_NR_IOA_RESET_REQUIRED)
2372 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_ABBREV);
2373 } else if (ioasc != IPR_IOASC_IOA_WAS_RESET) {
2374 dev_err(&ioa_cfg->pdev->dev,
2375 "Host RCB failed with IOASC: 0x%08X\n", ioasc);
2378 ipr_send_hcam(ioa_cfg, IPR_HCAM_CDB_OP_CODE_LOG_DATA, hostrcb);
2382 * ipr_timeout - An internally generated op has timed out.
2383 * @ipr_cmd: ipr command struct
2385 * This function blocks host requests and initiates an
2391 static void ipr_timeout(struct ipr_cmnd *ipr_cmd)
2393 unsigned long lock_flags = 0;
2394 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
2397 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
2399 ioa_cfg->errors_logged++;
2400 dev_err(&ioa_cfg->pdev->dev,
2401 "Adapter being reset due to command timeout.\n");
2403 if (WAIT_FOR_DUMP == ioa_cfg->sdt_state)
2404 ioa_cfg->sdt_state = GET_DUMP;
2406 if (!ioa_cfg->in_reset_reload || ioa_cfg->reset_cmd == ipr_cmd)
2407 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
2409 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
2414 * ipr_oper_timeout - Adapter timed out transitioning to operational
2415 * @ipr_cmd: ipr command struct
2417 * This function blocks host requests and initiates an
2423 static void ipr_oper_timeout(struct ipr_cmnd *ipr_cmd)
2425 unsigned long lock_flags = 0;
2426 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
2429 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
2431 ioa_cfg->errors_logged++;
2432 dev_err(&ioa_cfg->pdev->dev,
2433 "Adapter timed out transitioning to operational.\n");
2435 if (WAIT_FOR_DUMP == ioa_cfg->sdt_state)
2436 ioa_cfg->sdt_state = GET_DUMP;
2438 if (!ioa_cfg->in_reset_reload || ioa_cfg->reset_cmd == ipr_cmd) {
2440 ioa_cfg->reset_retries += IPR_NUM_RESET_RELOAD_RETRIES;
2441 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
2444 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
2449 * ipr_reset_reload - Reset/Reload the IOA
2450 * @ioa_cfg: ioa config struct
2451 * @shutdown_type: shutdown type
2453 * This function resets the adapter and re-initializes it.
2454 * This function assumes that all new host commands have been stopped.
2458 static int ipr_reset_reload(struct ipr_ioa_cfg *ioa_cfg,
2459 enum ipr_shutdown_type shutdown_type)
2461 if (!ioa_cfg->in_reset_reload)
2462 ipr_initiate_ioa_reset(ioa_cfg, shutdown_type);
2464 spin_unlock_irq(ioa_cfg->host->host_lock);
2465 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
2466 spin_lock_irq(ioa_cfg->host->host_lock);
2468 /* If we got hit with a host reset while we were already resetting
2469 the adapter for some reason, and the reset failed. */
2470 if (ioa_cfg->ioa_is_dead) {
2479 * ipr_find_ses_entry - Find matching SES in SES table
2480 * @res: resource entry struct of SES
2483 * pointer to SES table entry / NULL on failure
2485 static const struct ipr_ses_table_entry *
2486 ipr_find_ses_entry(struct ipr_resource_entry *res)
2489 struct ipr_std_inq_vpids *vpids;
2490 const struct ipr_ses_table_entry *ste = ipr_ses_table;
2492 for (i = 0; i < ARRAY_SIZE(ipr_ses_table); i++, ste++) {
2493 for (j = 0, matches = 0; j < IPR_PROD_ID_LEN; j++) {
2494 if (ste->compare_product_id_byte[j] == 'X') {
2495 vpids = &res->std_inq_data.vpids;
2496 if (vpids->product_id[j] == ste->product_id[j])
2504 if (matches == IPR_PROD_ID_LEN)
2512 * ipr_get_max_scsi_speed - Determine max SCSI speed for a given bus
2513 * @ioa_cfg: ioa config struct
2515 * @bus_width: bus width
2518 * SCSI bus speed in units of 100KHz, 1600 is 160 MHz
2519 * For a 2-byte wide SCSI bus, the maximum transfer speed is
2520 * twice the maximum transfer rate (e.g. for a wide enabled bus,
2521 * max 160MHz = max 320MB/sec).
2523 static u32 ipr_get_max_scsi_speed(struct ipr_ioa_cfg *ioa_cfg, u8 bus, u8 bus_width)
2525 struct ipr_resource_entry *res;
2526 const struct ipr_ses_table_entry *ste;
2527 u32 max_xfer_rate = IPR_MAX_SCSI_RATE(bus_width);
2529 /* Loop through each config table entry in the config table buffer */
2530 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) {
2531 if (!(IPR_IS_SES_DEVICE(res->std_inq_data)))
2534 if (bus != res->bus)
2537 if (!(ste = ipr_find_ses_entry(res)))
2540 max_xfer_rate = (ste->max_bus_speed_limit * 10) / (bus_width / 8);
2543 return max_xfer_rate;
2547 * ipr_wait_iodbg_ack - Wait for an IODEBUG ACK from the IOA
2548 * @ioa_cfg: ioa config struct
2549 * @max_delay: max delay in micro-seconds to wait
2551 * Waits for an IODEBUG ACK from the IOA, doing busy looping.
2554 * 0 on success / other on failure
2556 static int ipr_wait_iodbg_ack(struct ipr_ioa_cfg *ioa_cfg, int max_delay)
2558 volatile u32 pcii_reg;
2561 /* Read interrupt reg until IOA signals IO Debug Acknowledge */
2562 while (delay < max_delay) {
2563 pcii_reg = readl(ioa_cfg->regs.sense_interrupt_reg);
2565 if (pcii_reg & IPR_PCII_IO_DEBUG_ACKNOWLEDGE)
2568 /* udelay cannot be used if delay is more than a few milliseconds */
2569 if ((delay / 1000) > MAX_UDELAY_MS)
2570 mdelay(delay / 1000);
2580 * ipr_get_sis64_dump_data_section - Dump IOA memory
2581 * @ioa_cfg: ioa config struct
2582 * @start_addr: adapter address to dump
2583 * @dest: destination kernel buffer
2584 * @length_in_words: length to dump in 4 byte words
2589 static int ipr_get_sis64_dump_data_section(struct ipr_ioa_cfg *ioa_cfg,
2591 __be32 *dest, u32 length_in_words)
2595 for (i = 0; i < length_in_words; i++) {
2596 writel(start_addr+(i*4), ioa_cfg->regs.dump_addr_reg);
2597 *dest = cpu_to_be32(readl(ioa_cfg->regs.dump_data_reg));
2605 * ipr_get_ldump_data_section - Dump IOA memory
2606 * @ioa_cfg: ioa config struct
2607 * @start_addr: adapter address to dump
2608 * @dest: destination kernel buffer
2609 * @length_in_words: length to dump in 4 byte words
2612 * 0 on success / -EIO on failure
2614 static int ipr_get_ldump_data_section(struct ipr_ioa_cfg *ioa_cfg,
2616 __be32 *dest, u32 length_in_words)
2618 volatile u32 temp_pcii_reg;
2622 return ipr_get_sis64_dump_data_section(ioa_cfg, start_addr,
2623 dest, length_in_words);
2625 /* Write IOA interrupt reg starting LDUMP state */
2626 writel((IPR_UPROCI_RESET_ALERT | IPR_UPROCI_IO_DEBUG_ALERT),
2627 ioa_cfg->regs.set_uproc_interrupt_reg32);
2629 /* Wait for IO debug acknowledge */
2630 if (ipr_wait_iodbg_ack(ioa_cfg,
2631 IPR_LDUMP_MAX_LONG_ACK_DELAY_IN_USEC)) {
2632 dev_err(&ioa_cfg->pdev->dev,
2633 "IOA dump long data transfer timeout\n");
2637 /* Signal LDUMP interlocked - clear IO debug ack */
2638 writel(IPR_PCII_IO_DEBUG_ACKNOWLEDGE,
2639 ioa_cfg->regs.clr_interrupt_reg);
2641 /* Write Mailbox with starting address */
2642 writel(start_addr, ioa_cfg->ioa_mailbox);
2644 /* Signal address valid - clear IOA Reset alert */
2645 writel(IPR_UPROCI_RESET_ALERT,
2646 ioa_cfg->regs.clr_uproc_interrupt_reg32);
2648 for (i = 0; i < length_in_words; i++) {
2649 /* Wait for IO debug acknowledge */
2650 if (ipr_wait_iodbg_ack(ioa_cfg,
2651 IPR_LDUMP_MAX_SHORT_ACK_DELAY_IN_USEC)) {
2652 dev_err(&ioa_cfg->pdev->dev,
2653 "IOA dump short data transfer timeout\n");
2657 /* Read data from mailbox and increment destination pointer */
2658 *dest = cpu_to_be32(readl(ioa_cfg->ioa_mailbox));
2661 /* For all but the last word of data, signal data received */
2662 if (i < (length_in_words - 1)) {
2663 /* Signal dump data received - Clear IO debug Ack */
2664 writel(IPR_PCII_IO_DEBUG_ACKNOWLEDGE,
2665 ioa_cfg->regs.clr_interrupt_reg);
2669 /* Signal end of block transfer. Set reset alert then clear IO debug ack */
2670 writel(IPR_UPROCI_RESET_ALERT,
2671 ioa_cfg->regs.set_uproc_interrupt_reg32);
2673 writel(IPR_UPROCI_IO_DEBUG_ALERT,
2674 ioa_cfg->regs.clr_uproc_interrupt_reg32);
2676 /* Signal dump data received - Clear IO debug Ack */
2677 writel(IPR_PCII_IO_DEBUG_ACKNOWLEDGE,
2678 ioa_cfg->regs.clr_interrupt_reg);
2680 /* Wait for IOA to signal LDUMP exit - IOA reset alert will be cleared */
2681 while (delay < IPR_LDUMP_MAX_SHORT_ACK_DELAY_IN_USEC) {
2683 readl(ioa_cfg->regs.sense_uproc_interrupt_reg32);
2685 if (!(temp_pcii_reg & IPR_UPROCI_RESET_ALERT))
2695 #ifdef CONFIG_SCSI_IPR_DUMP
2697 * ipr_sdt_copy - Copy Smart Dump Table to kernel buffer
2698 * @ioa_cfg: ioa config struct
2699 * @pci_address: adapter address
2700 * @length: length of data to copy
2702 * Copy data from PCI adapter to kernel buffer.
2703 * Note: length MUST be a 4 byte multiple
2705 * 0 on success / other on failure
2707 static int ipr_sdt_copy(struct ipr_ioa_cfg *ioa_cfg,
2708 unsigned long pci_address, u32 length)
2710 int bytes_copied = 0;
2711 int cur_len, rc, rem_len, rem_page_len;
2713 unsigned long lock_flags = 0;
2714 struct ipr_ioa_dump *ioa_dump = &ioa_cfg->dump->ioa_dump;
2716 while (bytes_copied < length &&
2717 (ioa_dump->hdr.len + bytes_copied) < IPR_MAX_IOA_DUMP_SIZE) {
2718 if (ioa_dump->page_offset >= PAGE_SIZE ||
2719 ioa_dump->page_offset == 0) {
2720 page = (__be32 *)__get_free_page(GFP_ATOMIC);
2724 return bytes_copied;
2727 ioa_dump->page_offset = 0;
2728 ioa_dump->ioa_data[ioa_dump->next_page_index] = page;
2729 ioa_dump->next_page_index++;
2731 page = ioa_dump->ioa_data[ioa_dump->next_page_index - 1];
2733 rem_len = length - bytes_copied;
2734 rem_page_len = PAGE_SIZE - ioa_dump->page_offset;
2735 cur_len = min(rem_len, rem_page_len);
2737 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
2738 if (ioa_cfg->sdt_state == ABORT_DUMP) {
2741 rc = ipr_get_ldump_data_section(ioa_cfg,
2742 pci_address + bytes_copied,
2743 &page[ioa_dump->page_offset / 4],
2744 (cur_len / sizeof(u32)));
2746 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
2749 ioa_dump->page_offset += cur_len;
2750 bytes_copied += cur_len;
2758 return bytes_copied;
2762 * ipr_init_dump_entry_hdr - Initialize a dump entry header.
2763 * @hdr: dump entry header struct
2768 static void ipr_init_dump_entry_hdr(struct ipr_dump_entry_header *hdr)
2770 hdr->eye_catcher = IPR_DUMP_EYE_CATCHER;
2772 hdr->offset = sizeof(*hdr);
2773 hdr->status = IPR_DUMP_STATUS_SUCCESS;
2777 * ipr_dump_ioa_type_data - Fill in the adapter type in the dump.
2778 * @ioa_cfg: ioa config struct
2779 * @driver_dump: driver dump struct
2784 static void ipr_dump_ioa_type_data(struct ipr_ioa_cfg *ioa_cfg,
2785 struct ipr_driver_dump *driver_dump)
2787 struct ipr_inquiry_page3 *ucode_vpd = &ioa_cfg->vpd_cbs->page3_data;
2789 ipr_init_dump_entry_hdr(&driver_dump->ioa_type_entry.hdr);
2790 driver_dump->ioa_type_entry.hdr.len =
2791 sizeof(struct ipr_dump_ioa_type_entry) -
2792 sizeof(struct ipr_dump_entry_header);
2793 driver_dump->ioa_type_entry.hdr.data_type = IPR_DUMP_DATA_TYPE_BINARY;
2794 driver_dump->ioa_type_entry.hdr.id = IPR_DUMP_DRIVER_TYPE_ID;
2795 driver_dump->ioa_type_entry.type = ioa_cfg->type;
2796 driver_dump->ioa_type_entry.fw_version = (ucode_vpd->major_release << 24) |
2797 (ucode_vpd->card_type << 16) | (ucode_vpd->minor_release[0] << 8) |
2798 ucode_vpd->minor_release[1];
2799 driver_dump->hdr.num_entries++;
2803 * ipr_dump_version_data - Fill in the driver version in the dump.
2804 * @ioa_cfg: ioa config struct
2805 * @driver_dump: driver dump struct
2810 static void ipr_dump_version_data(struct ipr_ioa_cfg *ioa_cfg,
2811 struct ipr_driver_dump *driver_dump)
2813 ipr_init_dump_entry_hdr(&driver_dump->version_entry.hdr);
2814 driver_dump->version_entry.hdr.len =
2815 sizeof(struct ipr_dump_version_entry) -
2816 sizeof(struct ipr_dump_entry_header);
2817 driver_dump->version_entry.hdr.data_type = IPR_DUMP_DATA_TYPE_ASCII;
2818 driver_dump->version_entry.hdr.id = IPR_DUMP_DRIVER_VERSION_ID;
2819 strcpy(driver_dump->version_entry.version, IPR_DRIVER_VERSION);
2820 driver_dump->hdr.num_entries++;
2824 * ipr_dump_trace_data - Fill in the IOA trace in the dump.
2825 * @ioa_cfg: ioa config struct
2826 * @driver_dump: driver dump struct
2831 static void ipr_dump_trace_data(struct ipr_ioa_cfg *ioa_cfg,
2832 struct ipr_driver_dump *driver_dump)
2834 ipr_init_dump_entry_hdr(&driver_dump->trace_entry.hdr);
2835 driver_dump->trace_entry.hdr.len =
2836 sizeof(struct ipr_dump_trace_entry) -
2837 sizeof(struct ipr_dump_entry_header);
2838 driver_dump->trace_entry.hdr.data_type = IPR_DUMP_DATA_TYPE_BINARY;
2839 driver_dump->trace_entry.hdr.id = IPR_DUMP_TRACE_ID;
2840 memcpy(driver_dump->trace_entry.trace, ioa_cfg->trace, IPR_TRACE_SIZE);
2841 driver_dump->hdr.num_entries++;
2845 * ipr_dump_location_data - Fill in the IOA location in the dump.
2846 * @ioa_cfg: ioa config struct
2847 * @driver_dump: driver dump struct
2852 static void ipr_dump_location_data(struct ipr_ioa_cfg *ioa_cfg,
2853 struct ipr_driver_dump *driver_dump)
2855 ipr_init_dump_entry_hdr(&driver_dump->location_entry.hdr);
2856 driver_dump->location_entry.hdr.len =
2857 sizeof(struct ipr_dump_location_entry) -
2858 sizeof(struct ipr_dump_entry_header);
2859 driver_dump->location_entry.hdr.data_type = IPR_DUMP_DATA_TYPE_ASCII;
2860 driver_dump->location_entry.hdr.id = IPR_DUMP_LOCATION_ID;
2861 strcpy(driver_dump->location_entry.location, dev_name(&ioa_cfg->pdev->dev));
2862 driver_dump->hdr.num_entries++;
2866 * ipr_get_ioa_dump - Perform a dump of the driver and adapter.
2867 * @ioa_cfg: ioa config struct
2868 * @dump: dump struct
2873 static void ipr_get_ioa_dump(struct ipr_ioa_cfg *ioa_cfg, struct ipr_dump *dump)
2875 unsigned long start_addr, sdt_word;
2876 unsigned long lock_flags = 0;
2877 struct ipr_driver_dump *driver_dump = &dump->driver_dump;
2878 struct ipr_ioa_dump *ioa_dump = &dump->ioa_dump;
2879 u32 num_entries, start_off, end_off;
2880 u32 bytes_to_copy, bytes_copied, rc;
2881 struct ipr_sdt *sdt;
2887 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
2889 if (ioa_cfg->sdt_state != GET_DUMP) {
2890 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
2894 start_addr = readl(ioa_cfg->ioa_mailbox);
2896 if (!ioa_cfg->sis64 && !ipr_sdt_is_fmt2(start_addr)) {
2897 dev_err(&ioa_cfg->pdev->dev,
2898 "Invalid dump table format: %lx\n", start_addr);
2899 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
2903 dev_err(&ioa_cfg->pdev->dev, "Dump of IOA initiated\n");
2905 driver_dump->hdr.eye_catcher = IPR_DUMP_EYE_CATCHER;
2907 /* Initialize the overall dump header */
2908 driver_dump->hdr.len = sizeof(struct ipr_driver_dump);
2909 driver_dump->hdr.num_entries = 1;
2910 driver_dump->hdr.first_entry_offset = sizeof(struct ipr_dump_header);
2911 driver_dump->hdr.status = IPR_DUMP_STATUS_SUCCESS;
2912 driver_dump->hdr.os = IPR_DUMP_OS_LINUX;
2913 driver_dump->hdr.driver_name = IPR_DUMP_DRIVER_NAME;
2915 ipr_dump_version_data(ioa_cfg, driver_dump);
2916 ipr_dump_location_data(ioa_cfg, driver_dump);
2917 ipr_dump_ioa_type_data(ioa_cfg, driver_dump);
2918 ipr_dump_trace_data(ioa_cfg, driver_dump);
2920 /* Update dump_header */
2921 driver_dump->hdr.len += sizeof(struct ipr_dump_entry_header);
2923 /* IOA Dump entry */
2924 ipr_init_dump_entry_hdr(&ioa_dump->hdr);
2925 ioa_dump->hdr.len = 0;
2926 ioa_dump->hdr.data_type = IPR_DUMP_DATA_TYPE_BINARY;
2927 ioa_dump->hdr.id = IPR_DUMP_IOA_DUMP_ID;
2929 /* First entries in sdt are actually a list of dump addresses and
2930 lengths to gather the real dump data. sdt represents the pointer
2931 to the ioa generated dump table. Dump data will be extracted based
2932 on entries in this table */
2933 sdt = &ioa_dump->sdt;
2935 rc = ipr_get_ldump_data_section(ioa_cfg, start_addr, (__be32 *)sdt,
2936 sizeof(struct ipr_sdt) / sizeof(__be32));
2938 /* Smart Dump table is ready to use and the first entry is valid */
2939 if (rc || ((be32_to_cpu(sdt->hdr.state) != IPR_FMT3_SDT_READY_TO_USE) &&
2940 (be32_to_cpu(sdt->hdr.state) != IPR_FMT2_SDT_READY_TO_USE))) {
2941 dev_err(&ioa_cfg->pdev->dev,
2942 "Dump of IOA failed. Dump table not valid: %d, %X.\n",
2943 rc, be32_to_cpu(sdt->hdr.state));
2944 driver_dump->hdr.status = IPR_DUMP_STATUS_FAILED;
2945 ioa_cfg->sdt_state = DUMP_OBTAINED;
2946 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
2950 num_entries = be32_to_cpu(sdt->hdr.num_entries_used);
2952 if (num_entries > IPR_NUM_SDT_ENTRIES)
2953 num_entries = IPR_NUM_SDT_ENTRIES;
2955 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
2957 for (i = 0; i < num_entries; i++) {
2958 if (ioa_dump->hdr.len > IPR_MAX_IOA_DUMP_SIZE) {
2959 driver_dump->hdr.status = IPR_DUMP_STATUS_QUAL_SUCCESS;
2963 if (sdt->entry[i].flags & IPR_SDT_VALID_ENTRY) {
2964 sdt_word = be32_to_cpu(sdt->entry[i].start_token);
2966 bytes_to_copy = be32_to_cpu(sdt->entry[i].end_token);
2968 start_off = sdt_word & IPR_FMT2_MBX_ADDR_MASK;
2969 end_off = be32_to_cpu(sdt->entry[i].end_token);
2971 if (ipr_sdt_is_fmt2(sdt_word) && sdt_word)
2972 bytes_to_copy = end_off - start_off;
2977 if (bytes_to_copy > IPR_MAX_IOA_DUMP_SIZE) {
2978 sdt->entry[i].flags &= ~IPR_SDT_VALID_ENTRY;
2982 /* Copy data from adapter to driver buffers */
2983 bytes_copied = ipr_sdt_copy(ioa_cfg, sdt_word,
2986 ioa_dump->hdr.len += bytes_copied;
2988 if (bytes_copied != bytes_to_copy) {
2989 driver_dump->hdr.status = IPR_DUMP_STATUS_QUAL_SUCCESS;
2996 dev_err(&ioa_cfg->pdev->dev, "Dump of IOA completed.\n");
2998 /* Update dump_header */
2999 driver_dump->hdr.len += ioa_dump->hdr.len;
3001 ioa_cfg->sdt_state = DUMP_OBTAINED;
3006 #define ipr_get_ioa_dump(ioa_cfg, dump) do { } while(0)
3010 * ipr_release_dump - Free adapter dump memory
3011 * @kref: kref struct
3016 static void ipr_release_dump(struct kref *kref)
3018 struct ipr_dump *dump = container_of(kref,struct ipr_dump,kref);
3019 struct ipr_ioa_cfg *ioa_cfg = dump->ioa_cfg;
3020 unsigned long lock_flags = 0;
3024 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3025 ioa_cfg->dump = NULL;
3026 ioa_cfg->sdt_state = INACTIVE;
3027 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3029 for (i = 0; i < dump->ioa_dump.next_page_index; i++)
3030 free_page((unsigned long) dump->ioa_dump.ioa_data[i]);
3037 * ipr_worker_thread - Worker thread
3038 * @work: ioa config struct
3040 * Called at task level from a work thread. This function takes care
3041 * of adding and removing device from the mid-layer as configuration
3042 * changes are detected by the adapter.
3047 static void ipr_worker_thread(struct work_struct *work)
3049 unsigned long lock_flags;
3050 struct ipr_resource_entry *res;
3051 struct scsi_device *sdev;
3052 struct ipr_dump *dump;
3053 struct ipr_ioa_cfg *ioa_cfg =
3054 container_of(work, struct ipr_ioa_cfg, work_q);
3055 u8 bus, target, lun;
3059 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3061 if (ioa_cfg->sdt_state == GET_DUMP) {
3062 dump = ioa_cfg->dump;
3064 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3067 kref_get(&dump->kref);
3068 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3069 ipr_get_ioa_dump(ioa_cfg, dump);
3070 kref_put(&dump->kref, ipr_release_dump);
3072 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3073 if (ioa_cfg->sdt_state == DUMP_OBTAINED)
3074 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
3075 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3082 if (!ioa_cfg->allow_cmds || !ioa_cfg->allow_ml_add_del) {
3083 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3087 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) {
3088 if (res->del_from_ml && res->sdev) {
3091 if (!scsi_device_get(sdev)) {
3092 list_move_tail(&res->queue, &ioa_cfg->free_res_q);
3093 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3094 scsi_remove_device(sdev);
3095 scsi_device_put(sdev);
3096 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3103 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) {
3104 if (res->add_to_ml) {
3106 target = res->target;
3109 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3110 scsi_add_device(ioa_cfg->host, bus, target, lun);
3111 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3116 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3117 kobject_uevent(&ioa_cfg->host->shost_dev.kobj, KOBJ_CHANGE);
3121 #ifdef CONFIG_SCSI_IPR_TRACE
3123 * ipr_read_trace - Dump the adapter trace
3124 * @filp: open sysfs file
3125 * @kobj: kobject struct
3126 * @bin_attr: bin_attribute struct
3129 * @count: buffer size
3132 * number of bytes printed to buffer
3134 static ssize_t ipr_read_trace(struct file *filp, struct kobject *kobj,
3135 struct bin_attribute *bin_attr,
3136 char *buf, loff_t off, size_t count)
3138 struct device *dev = container_of(kobj, struct device, kobj);
3139 struct Scsi_Host *shost = class_to_shost(dev);
3140 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
3141 unsigned long lock_flags = 0;
3144 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3145 ret = memory_read_from_buffer(buf, count, &off, ioa_cfg->trace,
3147 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3152 static struct bin_attribute ipr_trace_attr = {
3158 .read = ipr_read_trace,
3163 * ipr_show_fw_version - Show the firmware version
3164 * @dev: class device struct
3168 * number of bytes printed to buffer
3170 static ssize_t ipr_show_fw_version(struct device *dev,
3171 struct device_attribute *attr, char *buf)
3173 struct Scsi_Host *shost = class_to_shost(dev);
3174 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
3175 struct ipr_inquiry_page3 *ucode_vpd = &ioa_cfg->vpd_cbs->page3_data;
3176 unsigned long lock_flags = 0;
3179 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3180 len = snprintf(buf, PAGE_SIZE, "%02X%02X%02X%02X\n",
3181 ucode_vpd->major_release, ucode_vpd->card_type,
3182 ucode_vpd->minor_release[0],
3183 ucode_vpd->minor_release[1]);
3184 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3188 static struct device_attribute ipr_fw_version_attr = {
3190 .name = "fw_version",
3193 .show = ipr_show_fw_version,
3197 * ipr_show_log_level - Show the adapter's error logging level
3198 * @dev: class device struct
3202 * number of bytes printed to buffer
3204 static ssize_t ipr_show_log_level(struct device *dev,
3205 struct device_attribute *attr, char *buf)
3207 struct Scsi_Host *shost = class_to_shost(dev);
3208 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
3209 unsigned long lock_flags = 0;
3212 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3213 len = snprintf(buf, PAGE_SIZE, "%d\n", ioa_cfg->log_level);
3214 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3219 * ipr_store_log_level - Change the adapter's error logging level
3220 * @dev: class device struct
3224 * number of bytes printed to buffer
3226 static ssize_t ipr_store_log_level(struct device *dev,
3227 struct device_attribute *attr,
3228 const char *buf, size_t count)
3230 struct Scsi_Host *shost = class_to_shost(dev);
3231 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
3232 unsigned long lock_flags = 0;
3234 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3235 ioa_cfg->log_level = simple_strtoul(buf, NULL, 10);
3236 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3240 static struct device_attribute ipr_log_level_attr = {
3242 .name = "log_level",
3243 .mode = S_IRUGO | S_IWUSR,
3245 .show = ipr_show_log_level,
3246 .store = ipr_store_log_level
3250 * ipr_store_diagnostics - IOA Diagnostics interface
3251 * @dev: device struct
3253 * @count: buffer size
3255 * This function will reset the adapter and wait a reasonable
3256 * amount of time for any errors that the adapter might log.
3259 * count on success / other on failure
3261 static ssize_t ipr_store_diagnostics(struct device *dev,
3262 struct device_attribute *attr,
3263 const char *buf, size_t count)
3265 struct Scsi_Host *shost = class_to_shost(dev);
3266 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
3267 unsigned long lock_flags = 0;
3270 if (!capable(CAP_SYS_ADMIN))
3273 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3274 while(ioa_cfg->in_reset_reload) {
3275 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3276 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
3277 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3280 ioa_cfg->errors_logged = 0;
3281 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NORMAL);
3283 if (ioa_cfg->in_reset_reload) {
3284 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3285 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
3287 /* Wait for a second for any errors to be logged */
3290 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3294 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3295 if (ioa_cfg->in_reset_reload || ioa_cfg->errors_logged)
3297 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3302 static struct device_attribute ipr_diagnostics_attr = {
3304 .name = "run_diagnostics",
3307 .store = ipr_store_diagnostics
3311 * ipr_show_adapter_state - Show the adapter's state
3312 * @class_dev: device struct
3316 * number of bytes printed to buffer
3318 static ssize_t ipr_show_adapter_state(struct device *dev,
3319 struct device_attribute *attr, char *buf)
3321 struct Scsi_Host *shost = class_to_shost(dev);
3322 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
3323 unsigned long lock_flags = 0;
3326 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3327 if (ioa_cfg->ioa_is_dead)
3328 len = snprintf(buf, PAGE_SIZE, "offline\n");
3330 len = snprintf(buf, PAGE_SIZE, "online\n");
3331 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3336 * ipr_store_adapter_state - Change adapter state
3337 * @dev: device struct
3339 * @count: buffer size
3341 * This function will change the adapter's state.
3344 * count on success / other on failure
3346 static ssize_t ipr_store_adapter_state(struct device *dev,
3347 struct device_attribute *attr,
3348 const char *buf, size_t count)
3350 struct Scsi_Host *shost = class_to_shost(dev);
3351 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
3352 unsigned long lock_flags;
3355 if (!capable(CAP_SYS_ADMIN))
3358 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3359 if (ioa_cfg->ioa_is_dead && !strncmp(buf, "online", 6)) {
3360 ioa_cfg->ioa_is_dead = 0;
3361 ioa_cfg->reset_retries = 0;
3362 ioa_cfg->in_ioa_bringdown = 0;
3363 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
3365 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3366 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
3371 static struct device_attribute ipr_ioa_state_attr = {
3373 .name = "online_state",
3374 .mode = S_IRUGO | S_IWUSR,
3376 .show = ipr_show_adapter_state,
3377 .store = ipr_store_adapter_state
3381 * ipr_store_reset_adapter - Reset the adapter
3382 * @dev: device struct
3384 * @count: buffer size
3386 * This function will reset the adapter.
3389 * count on success / other on failure
3391 static ssize_t ipr_store_reset_adapter(struct device *dev,
3392 struct device_attribute *attr,
3393 const char *buf, size_t count)
3395 struct Scsi_Host *shost = class_to_shost(dev);
3396 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
3397 unsigned long lock_flags;
3400 if (!capable(CAP_SYS_ADMIN))
3403 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3404 if (!ioa_cfg->in_reset_reload)
3405 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NORMAL);
3406 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3407 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
3412 static struct device_attribute ipr_ioa_reset_attr = {
3414 .name = "reset_host",
3417 .store = ipr_store_reset_adapter
3421 * ipr_alloc_ucode_buffer - Allocates a microcode download buffer
3422 * @buf_len: buffer length
3424 * Allocates a DMA'able buffer in chunks and assembles a scatter/gather
3425 * list to use for microcode download
3428 * pointer to sglist / NULL on failure
3430 static struct ipr_sglist *ipr_alloc_ucode_buffer(int buf_len)
3432 int sg_size, order, bsize_elem, num_elem, i, j;
3433 struct ipr_sglist *sglist;
3434 struct scatterlist *scatterlist;
3437 /* Get the minimum size per scatter/gather element */
3438 sg_size = buf_len / (IPR_MAX_SGLIST - 1);
3440 /* Get the actual size per element */
3441 order = get_order(sg_size);
3443 /* Determine the actual number of bytes per element */
3444 bsize_elem = PAGE_SIZE * (1 << order);
3446 /* Determine the actual number of sg entries needed */
3447 if (buf_len % bsize_elem)
3448 num_elem = (buf_len / bsize_elem) + 1;
3450 num_elem = buf_len / bsize_elem;
3452 /* Allocate a scatter/gather list for the DMA */
3453 sglist = kzalloc(sizeof(struct ipr_sglist) +
3454 (sizeof(struct scatterlist) * (num_elem - 1)),
3457 if (sglist == NULL) {
3462 scatterlist = sglist->scatterlist;
3463 sg_init_table(scatterlist, num_elem);
3465 sglist->order = order;
3466 sglist->num_sg = num_elem;
3468 /* Allocate a bunch of sg elements */
3469 for (i = 0; i < num_elem; i++) {
3470 page = alloc_pages(GFP_KERNEL, order);
3474 /* Free up what we already allocated */
3475 for (j = i - 1; j >= 0; j--)
3476 __free_pages(sg_page(&scatterlist[j]), order);
3481 sg_set_page(&scatterlist[i], page, 0, 0);
3488 * ipr_free_ucode_buffer - Frees a microcode download buffer
3489 * @p_dnld: scatter/gather list pointer
3491 * Free a DMA'able ucode download buffer previously allocated with
3492 * ipr_alloc_ucode_buffer
3497 static void ipr_free_ucode_buffer(struct ipr_sglist *sglist)
3501 for (i = 0; i < sglist->num_sg; i++)
3502 __free_pages(sg_page(&sglist->scatterlist[i]), sglist->order);
3508 * ipr_copy_ucode_buffer - Copy user buffer to kernel buffer
3509 * @sglist: scatter/gather list pointer
3510 * @buffer: buffer pointer
3511 * @len: buffer length
3513 * Copy a microcode image from a user buffer into a buffer allocated by
3514 * ipr_alloc_ucode_buffer
3517 * 0 on success / other on failure
3519 static int ipr_copy_ucode_buffer(struct ipr_sglist *sglist,
3520 u8 *buffer, u32 len)
3522 int bsize_elem, i, result = 0;
3523 struct scatterlist *scatterlist;
3526 /* Determine the actual number of bytes per element */
3527 bsize_elem = PAGE_SIZE * (1 << sglist->order);
3529 scatterlist = sglist->scatterlist;
3531 for (i = 0; i < (len / bsize_elem); i++, buffer += bsize_elem) {
3532 struct page *page = sg_page(&scatterlist[i]);
3535 memcpy(kaddr, buffer, bsize_elem);
3538 scatterlist[i].length = bsize_elem;
3546 if (len % bsize_elem) {
3547 struct page *page = sg_page(&scatterlist[i]);
3550 memcpy(kaddr, buffer, len % bsize_elem);
3553 scatterlist[i].length = len % bsize_elem;
3556 sglist->buffer_len = len;
3561 * ipr_build_ucode_ioadl64 - Build a microcode download IOADL
3562 * @ipr_cmd: ipr command struct
3563 * @sglist: scatter/gather list
3565 * Builds a microcode download IOA data list (IOADL).
3568 static void ipr_build_ucode_ioadl64(struct ipr_cmnd *ipr_cmd,
3569 struct ipr_sglist *sglist)
3571 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
3572 struct ipr_ioadl64_desc *ioadl64 = ipr_cmd->i.ioadl64;
3573 struct scatterlist *scatterlist = sglist->scatterlist;
3576 ipr_cmd->dma_use_sg = sglist->num_dma_sg;
3577 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ;
3578 ioarcb->data_transfer_length = cpu_to_be32(sglist->buffer_len);
3581 cpu_to_be32(sizeof(struct ipr_ioadl64_desc) * ipr_cmd->dma_use_sg);
3582 for (i = 0; i < ipr_cmd->dma_use_sg; i++) {
3583 ioadl64[i].flags = cpu_to_be32(IPR_IOADL_FLAGS_WRITE);
3584 ioadl64[i].data_len = cpu_to_be32(sg_dma_len(&scatterlist[i]));
3585 ioadl64[i].address = cpu_to_be64(sg_dma_address(&scatterlist[i]));
3588 ioadl64[i-1].flags |= cpu_to_be32(IPR_IOADL_FLAGS_LAST);
3592 * ipr_build_ucode_ioadl - Build a microcode download IOADL
3593 * @ipr_cmd: ipr command struct
3594 * @sglist: scatter/gather list
3596 * Builds a microcode download IOA data list (IOADL).
3599 static void ipr_build_ucode_ioadl(struct ipr_cmnd *ipr_cmd,
3600 struct ipr_sglist *sglist)
3602 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
3603 struct ipr_ioadl_desc *ioadl = ipr_cmd->i.ioadl;
3604 struct scatterlist *scatterlist = sglist->scatterlist;
3607 ipr_cmd->dma_use_sg = sglist->num_dma_sg;
3608 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ;
3609 ioarcb->data_transfer_length = cpu_to_be32(sglist->buffer_len);
3612 cpu_to_be32(sizeof(struct ipr_ioadl_desc) * ipr_cmd->dma_use_sg);
3614 for (i = 0; i < ipr_cmd->dma_use_sg; i++) {
3615 ioadl[i].flags_and_data_len =
3616 cpu_to_be32(IPR_IOADL_FLAGS_WRITE | sg_dma_len(&scatterlist[i]));
3618 cpu_to_be32(sg_dma_address(&scatterlist[i]));
3621 ioadl[i-1].flags_and_data_len |=
3622 cpu_to_be32(IPR_IOADL_FLAGS_LAST);
3626 * ipr_update_ioa_ucode - Update IOA's microcode
3627 * @ioa_cfg: ioa config struct
3628 * @sglist: scatter/gather list
3630 * Initiate an adapter reset to update the IOA's microcode
3633 * 0 on success / -EIO on failure
3635 static int ipr_update_ioa_ucode(struct ipr_ioa_cfg *ioa_cfg,
3636 struct ipr_sglist *sglist)
3638 unsigned long lock_flags;
3640 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3641 while(ioa_cfg->in_reset_reload) {
3642 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3643 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
3644 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3647 if (ioa_cfg->ucode_sglist) {
3648 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3649 dev_err(&ioa_cfg->pdev->dev,
3650 "Microcode download already in progress\n");
3654 sglist->num_dma_sg = pci_map_sg(ioa_cfg->pdev, sglist->scatterlist,
3655 sglist->num_sg, DMA_TO_DEVICE);
3657 if (!sglist->num_dma_sg) {
3658 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3659 dev_err(&ioa_cfg->pdev->dev,
3660 "Failed to map microcode download buffer!\n");
3664 ioa_cfg->ucode_sglist = sglist;
3665 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NORMAL);
3666 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3667 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
3669 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3670 ioa_cfg->ucode_sglist = NULL;
3671 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3676 * ipr_store_update_fw - Update the firmware on the adapter
3677 * @class_dev: device struct
3679 * @count: buffer size
3681 * This function will update the firmware on the adapter.
3684 * count on success / other on failure
3686 static ssize_t ipr_store_update_fw(struct device *dev,
3687 struct device_attribute *attr,
3688 const char *buf, size_t count)
3690 struct Scsi_Host *shost = class_to_shost(dev);
3691 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
3692 struct ipr_ucode_image_header *image_hdr;
3693 const struct firmware *fw_entry;
3694 struct ipr_sglist *sglist;
3697 int len, result, dnld_size;
3699 if (!capable(CAP_SYS_ADMIN))
3702 len = snprintf(fname, 99, "%s", buf);
3703 fname[len-1] = '\0';
3705 if(request_firmware(&fw_entry, fname, &ioa_cfg->pdev->dev)) {
3706 dev_err(&ioa_cfg->pdev->dev, "Firmware file %s not found\n", fname);
3710 image_hdr = (struct ipr_ucode_image_header *)fw_entry->data;
3712 if (be32_to_cpu(image_hdr->header_length) > fw_entry->size ||
3713 (ioa_cfg->vpd_cbs->page3_data.card_type &&
3714 ioa_cfg->vpd_cbs->page3_data.card_type != image_hdr->card_type)) {
3715 dev_err(&ioa_cfg->pdev->dev, "Invalid microcode buffer\n");
3716 release_firmware(fw_entry);
3720 src = (u8 *)image_hdr + be32_to_cpu(image_hdr->header_length);
3721 dnld_size = fw_entry->size - be32_to_cpu(image_hdr->header_length);
3722 sglist = ipr_alloc_ucode_buffer(dnld_size);
3725 dev_err(&ioa_cfg->pdev->dev, "Microcode buffer allocation failed\n");
3726 release_firmware(fw_entry);
3730 result = ipr_copy_ucode_buffer(sglist, src, dnld_size);
3733 dev_err(&ioa_cfg->pdev->dev,
3734 "Microcode buffer copy to DMA buffer failed\n");
3738 result = ipr_update_ioa_ucode(ioa_cfg, sglist);
3743 ipr_free_ucode_buffer(sglist);
3744 release_firmware(fw_entry);
3748 static struct device_attribute ipr_update_fw_attr = {
3750 .name = "update_fw",
3753 .store = ipr_store_update_fw
3756 static struct device_attribute *ipr_ioa_attrs[] = {
3757 &ipr_fw_version_attr,
3758 &ipr_log_level_attr,
3759 &ipr_diagnostics_attr,
3760 &ipr_ioa_state_attr,
3761 &ipr_ioa_reset_attr,
3762 &ipr_update_fw_attr,
3766 #ifdef CONFIG_SCSI_IPR_DUMP
3768 * ipr_read_dump - Dump the adapter
3769 * @filp: open sysfs file
3770 * @kobj: kobject struct
3771 * @bin_attr: bin_attribute struct
3774 * @count: buffer size
3777 * number of bytes printed to buffer
3779 static ssize_t ipr_read_dump(struct file *filp, struct kobject *kobj,
3780 struct bin_attribute *bin_attr,
3781 char *buf, loff_t off, size_t count)
3783 struct device *cdev = container_of(kobj, struct device, kobj);
3784 struct Scsi_Host *shost = class_to_shost(cdev);
3785 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
3786 struct ipr_dump *dump;
3787 unsigned long lock_flags = 0;
3792 if (!capable(CAP_SYS_ADMIN))
3795 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3796 dump = ioa_cfg->dump;
3798 if (ioa_cfg->sdt_state != DUMP_OBTAINED || !dump) {
3799 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3802 kref_get(&dump->kref);
3803 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3805 if (off > dump->driver_dump.hdr.len) {
3806 kref_put(&dump->kref, ipr_release_dump);
3810 if (off + count > dump->driver_dump.hdr.len) {
3811 count = dump->driver_dump.hdr.len - off;
3815 if (count && off < sizeof(dump->driver_dump)) {
3816 if (off + count > sizeof(dump->driver_dump))
3817 len = sizeof(dump->driver_dump) - off;
3820 src = (u8 *)&dump->driver_dump + off;
3821 memcpy(buf, src, len);
3827 off -= sizeof(dump->driver_dump);
3829 if (count && off < offsetof(struct ipr_ioa_dump, ioa_data)) {
3830 if (off + count > offsetof(struct ipr_ioa_dump, ioa_data))
3831 len = offsetof(struct ipr_ioa_dump, ioa_data) - off;
3834 src = (u8 *)&dump->ioa_dump + off;
3835 memcpy(buf, src, len);
3841 off -= offsetof(struct ipr_ioa_dump, ioa_data);
3844 if ((off & PAGE_MASK) != ((off + count) & PAGE_MASK))
3845 len = PAGE_ALIGN(off) - off;
3848 src = (u8 *)dump->ioa_dump.ioa_data[(off & PAGE_MASK) >> PAGE_SHIFT];
3849 src += off & ~PAGE_MASK;
3850 memcpy(buf, src, len);
3856 kref_put(&dump->kref, ipr_release_dump);
3861 * ipr_alloc_dump - Prepare for adapter dump
3862 * @ioa_cfg: ioa config struct
3865 * 0 on success / other on failure
3867 static int ipr_alloc_dump(struct ipr_ioa_cfg *ioa_cfg)
3869 struct ipr_dump *dump;
3870 unsigned long lock_flags = 0;
3872 dump = kzalloc(sizeof(struct ipr_dump), GFP_KERNEL);
3875 ipr_err("Dump memory allocation failed\n");
3879 kref_init(&dump->kref);
3880 dump->ioa_cfg = ioa_cfg;
3882 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3884 if (INACTIVE != ioa_cfg->sdt_state) {
3885 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3890 ioa_cfg->dump = dump;
3891 ioa_cfg->sdt_state = WAIT_FOR_DUMP;
3892 if (ioa_cfg->ioa_is_dead && !ioa_cfg->dump_taken) {
3893 ioa_cfg->dump_taken = 1;
3894 schedule_work(&ioa_cfg->work_q);
3896 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3902 * ipr_free_dump - Free adapter dump memory
3903 * @ioa_cfg: ioa config struct
3906 * 0 on success / other on failure
3908 static int ipr_free_dump(struct ipr_ioa_cfg *ioa_cfg)
3910 struct ipr_dump *dump;
3911 unsigned long lock_flags = 0;
3915 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3916 dump = ioa_cfg->dump;
3918 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3922 ioa_cfg->dump = NULL;
3923 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3925 kref_put(&dump->kref, ipr_release_dump);
3932 * ipr_write_dump - Setup dump state of adapter
3933 * @filp: open sysfs file
3934 * @kobj: kobject struct
3935 * @bin_attr: bin_attribute struct
3938 * @count: buffer size
3941 * number of bytes printed to buffer
3943 static ssize_t ipr_write_dump(struct file *filp, struct kobject *kobj,
3944 struct bin_attribute *bin_attr,
3945 char *buf, loff_t off, size_t count)
3947 struct device *cdev = container_of(kobj, struct device, kobj);
3948 struct Scsi_Host *shost = class_to_shost(cdev);
3949 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
3952 if (!capable(CAP_SYS_ADMIN))
3956 rc = ipr_alloc_dump(ioa_cfg);
3957 else if (buf[0] == '0')
3958 rc = ipr_free_dump(ioa_cfg);
3968 static struct bin_attribute ipr_dump_attr = {
3971 .mode = S_IRUSR | S_IWUSR,
3974 .read = ipr_read_dump,
3975 .write = ipr_write_dump
3978 static int ipr_free_dump(struct ipr_ioa_cfg *ioa_cfg) { return 0; };
3982 * ipr_change_queue_depth - Change the device's queue depth
3983 * @sdev: scsi device struct
3984 * @qdepth: depth to set
3985 * @reason: calling context
3990 static int ipr_change_queue_depth(struct scsi_device *sdev, int qdepth,
3993 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)sdev->host->hostdata;
3994 struct ipr_resource_entry *res;
3995 unsigned long lock_flags = 0;
3997 if (reason != SCSI_QDEPTH_DEFAULT)
4000 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4001 res = (struct ipr_resource_entry *)sdev->hostdata;
4003 if (res && ipr_is_gata(res) && qdepth > IPR_MAX_CMD_PER_ATA_LUN)
4004 qdepth = IPR_MAX_CMD_PER_ATA_LUN;
4005 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4007 scsi_adjust_queue_depth(sdev, scsi_get_tag_type(sdev), qdepth);
4008 return sdev->queue_depth;
4012 * ipr_change_queue_type - Change the device's queue type
4013 * @dsev: scsi device struct
4014 * @tag_type: type of tags to use
4017 * actual queue type set
4019 static int ipr_change_queue_type(struct scsi_device *sdev, int tag_type)
4021 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)sdev->host->hostdata;
4022 struct ipr_resource_entry *res;
4023 unsigned long lock_flags = 0;
4025 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4026 res = (struct ipr_resource_entry *)sdev->hostdata;
4029 if (ipr_is_gscsi(res) && sdev->tagged_supported) {
4031 * We don't bother quiescing the device here since the
4032 * adapter firmware does it for us.
4034 scsi_set_tag_type(sdev, tag_type);
4037 scsi_activate_tcq(sdev, sdev->queue_depth);
4039 scsi_deactivate_tcq(sdev, sdev->queue_depth);
4045 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4050 * ipr_show_adapter_handle - Show the adapter's resource handle for this device
4051 * @dev: device struct
4055 * number of bytes printed to buffer
4057 static ssize_t ipr_show_adapter_handle(struct device *dev, struct device_attribute *attr, char *buf)
4059 struct scsi_device *sdev = to_scsi_device(dev);
4060 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)sdev->host->hostdata;
4061 struct ipr_resource_entry *res;
4062 unsigned long lock_flags = 0;
4063 ssize_t len = -ENXIO;
4065 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4066 res = (struct ipr_resource_entry *)sdev->hostdata;
4068 len = snprintf(buf, PAGE_SIZE, "%08X\n", res->res_handle);
4069 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4073 static struct device_attribute ipr_adapter_handle_attr = {
4075 .name = "adapter_handle",
4078 .show = ipr_show_adapter_handle
4082 * ipr_show_resource_path - Show the resource path for this device.
4083 * @dev: device struct
4087 * number of bytes printed to buffer
4089 static ssize_t ipr_show_resource_path(struct device *dev, struct device_attribute *attr, char *buf)
4091 struct scsi_device *sdev = to_scsi_device(dev);
4092 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)sdev->host->hostdata;
4093 struct ipr_resource_entry *res;
4094 unsigned long lock_flags = 0;
4095 ssize_t len = -ENXIO;
4096 char buffer[IPR_MAX_RES_PATH_LENGTH];
4098 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4099 res = (struct ipr_resource_entry *)sdev->hostdata;
4101 len = snprintf(buf, PAGE_SIZE, "%s\n",
4102 ipr_format_resource_path(&res->res_path[0], &buffer[0]));
4103 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4107 static struct device_attribute ipr_resource_path_attr = {
4109 .name = "resource_path",
4112 .show = ipr_show_resource_path
4115 static struct device_attribute *ipr_dev_attrs[] = {
4116 &ipr_adapter_handle_attr,
4117 &ipr_resource_path_attr,
4122 * ipr_biosparam - Return the HSC mapping
4123 * @sdev: scsi device struct
4124 * @block_device: block device pointer
4125 * @capacity: capacity of the device
4126 * @parm: Array containing returned HSC values.
4128 * This function generates the HSC parms that fdisk uses.
4129 * We want to make sure we return something that places partitions
4130 * on 4k boundaries for best performance with the IOA.
4135 static int ipr_biosparam(struct scsi_device *sdev,
4136 struct block_device *block_device,
4137 sector_t capacity, int *parm)
4145 cylinders = capacity;
4146 sector_div(cylinders, (128 * 32));
4151 parm[2] = cylinders;
4157 * ipr_find_starget - Find target based on bus/target.
4158 * @starget: scsi target struct
4161 * resource entry pointer if found / NULL if not found
4163 static struct ipr_resource_entry *ipr_find_starget(struct scsi_target *starget)
4165 struct Scsi_Host *shost = dev_to_shost(&starget->dev);
4166 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) shost->hostdata;
4167 struct ipr_resource_entry *res;
4169 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) {
4170 if ((res->bus == starget->channel) &&
4171 (res->target == starget->id) &&
4180 static struct ata_port_info sata_port_info;
4183 * ipr_target_alloc - Prepare for commands to a SCSI target
4184 * @starget: scsi target struct
4186 * If the device is a SATA device, this function allocates an
4187 * ATA port with libata, else it does nothing.
4190 * 0 on success / non-0 on failure
4192 static int ipr_target_alloc(struct scsi_target *starget)
4194 struct Scsi_Host *shost = dev_to_shost(&starget->dev);
4195 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) shost->hostdata;
4196 struct ipr_sata_port *sata_port;
4197 struct ata_port *ap;
4198 struct ipr_resource_entry *res;
4199 unsigned long lock_flags;
4201 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4202 res = ipr_find_starget(starget);
4203 starget->hostdata = NULL;
4205 if (res && ipr_is_gata(res)) {
4206 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4207 sata_port = kzalloc(sizeof(*sata_port), GFP_KERNEL);
4211 ap = ata_sas_port_alloc(&ioa_cfg->ata_host, &sata_port_info, shost);
4213 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4214 sata_port->ioa_cfg = ioa_cfg;
4216 sata_port->res = res;
4218 res->sata_port = sata_port;
4219 ap->private_data = sata_port;
4220 starget->hostdata = sata_port;
4226 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4232 * ipr_target_destroy - Destroy a SCSI target
4233 * @starget: scsi target struct
4235 * If the device was a SATA device, this function frees the libata
4236 * ATA port, else it does nothing.
4239 static void ipr_target_destroy(struct scsi_target *starget)
4241 struct ipr_sata_port *sata_port = starget->hostdata;
4242 struct Scsi_Host *shost = dev_to_shost(&starget->dev);
4243 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) shost->hostdata;
4245 if (ioa_cfg->sis64) {
4246 if (starget->channel == IPR_ARRAY_VIRTUAL_BUS)
4247 clear_bit(starget->id, ioa_cfg->array_ids);
4248 else if (starget->channel == IPR_VSET_VIRTUAL_BUS)
4249 clear_bit(starget->id, ioa_cfg->vset_ids);
4250 else if (starget->channel == 0)
4251 clear_bit(starget->id, ioa_cfg->target_ids);
4255 starget->hostdata = NULL;
4256 ata_sas_port_destroy(sata_port->ap);
4262 * ipr_find_sdev - Find device based on bus/target/lun.
4263 * @sdev: scsi device struct
4266 * resource entry pointer if found / NULL if not found
4268 static struct ipr_resource_entry *ipr_find_sdev(struct scsi_device *sdev)
4270 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) sdev->host->hostdata;
4271 struct ipr_resource_entry *res;
4273 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) {
4274 if ((res->bus == sdev->channel) &&
4275 (res->target == sdev->id) &&
4276 (res->lun == sdev->lun))
4284 * ipr_slave_destroy - Unconfigure a SCSI device
4285 * @sdev: scsi device struct
4290 static void ipr_slave_destroy(struct scsi_device *sdev)
4292 struct ipr_resource_entry *res;
4293 struct ipr_ioa_cfg *ioa_cfg;
4294 unsigned long lock_flags = 0;
4296 ioa_cfg = (struct ipr_ioa_cfg *) sdev->host->hostdata;
4298 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4299 res = (struct ipr_resource_entry *) sdev->hostdata;
4302 res->sata_port->ap->link.device[0].class = ATA_DEV_NONE;
4303 sdev->hostdata = NULL;
4305 res->sata_port = NULL;
4307 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4311 * ipr_slave_configure - Configure a SCSI device
4312 * @sdev: scsi device struct
4314 * This function configures the specified scsi device.
4319 static int ipr_slave_configure(struct scsi_device *sdev)
4321 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) sdev->host->hostdata;
4322 struct ipr_resource_entry *res;
4323 struct ata_port *ap = NULL;
4324 unsigned long lock_flags = 0;
4325 char buffer[IPR_MAX_RES_PATH_LENGTH];
4327 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4328 res = sdev->hostdata;
4330 if (ipr_is_af_dasd_device(res))
4331 sdev->type = TYPE_RAID;
4332 if (ipr_is_af_dasd_device(res) || ipr_is_ioa_resource(res)) {
4333 sdev->scsi_level = 4;
4334 sdev->no_uld_attach = 1;
4336 if (ipr_is_vset_device(res)) {
4337 blk_queue_rq_timeout(sdev->request_queue,
4338 IPR_VSET_RW_TIMEOUT);
4339 blk_queue_max_hw_sectors(sdev->request_queue, IPR_VSET_MAX_SECTORS);
4341 if (ipr_is_vset_device(res) || ipr_is_scsi_disk(res))
4342 sdev->allow_restart = 1;
4343 if (ipr_is_gata(res) && res->sata_port)
4344 ap = res->sata_port->ap;
4345 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4348 scsi_adjust_queue_depth(sdev, 0, IPR_MAX_CMD_PER_ATA_LUN);
4349 ata_sas_slave_configure(sdev, ap);
4351 scsi_adjust_queue_depth(sdev, 0, sdev->host->cmd_per_lun);
4353 sdev_printk(KERN_INFO, sdev, "Resource path: %s\n",
4354 ipr_format_resource_path(&res->res_path[0], &buffer[0]));
4357 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4362 * ipr_ata_slave_alloc - Prepare for commands to a SATA device
4363 * @sdev: scsi device struct
4365 * This function initializes an ATA port so that future commands
4366 * sent through queuecommand will work.
4371 static int ipr_ata_slave_alloc(struct scsi_device *sdev)
4373 struct ipr_sata_port *sata_port = NULL;
4377 if (sdev->sdev_target)
4378 sata_port = sdev->sdev_target->hostdata;
4380 rc = ata_sas_port_init(sata_port->ap);
4382 ipr_slave_destroy(sdev);
4389 * ipr_slave_alloc - Prepare for commands to a device.
4390 * @sdev: scsi device struct
4392 * This function saves a pointer to the resource entry
4393 * in the scsi device struct if the device exists. We
4394 * can then use this pointer in ipr_queuecommand when
4395 * handling new commands.
4398 * 0 on success / -ENXIO if device does not exist
4400 static int ipr_slave_alloc(struct scsi_device *sdev)
4402 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) sdev->host->hostdata;
4403 struct ipr_resource_entry *res;
4404 unsigned long lock_flags;
4407 sdev->hostdata = NULL;
4409 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4411 res = ipr_find_sdev(sdev);
4416 sdev->hostdata = res;
4417 if (!ipr_is_naca_model(res))
4418 res->needs_sync_complete = 1;
4420 if (ipr_is_gata(res)) {
4421 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4422 return ipr_ata_slave_alloc(sdev);
4426 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4432 * ipr_eh_host_reset - Reset the host adapter
4433 * @scsi_cmd: scsi command struct
4438 static int __ipr_eh_host_reset(struct scsi_cmnd * scsi_cmd)
4440 struct ipr_ioa_cfg *ioa_cfg;
4444 ioa_cfg = (struct ipr_ioa_cfg *) scsi_cmd->device->host->hostdata;
4446 dev_err(&ioa_cfg->pdev->dev,
4447 "Adapter being reset as a result of error recovery.\n");
4449 if (WAIT_FOR_DUMP == ioa_cfg->sdt_state)
4450 ioa_cfg->sdt_state = GET_DUMP;
4452 rc = ipr_reset_reload(ioa_cfg, IPR_SHUTDOWN_ABBREV);
4458 static int ipr_eh_host_reset(struct scsi_cmnd * cmd)
4462 spin_lock_irq(cmd->device->host->host_lock);
4463 rc = __ipr_eh_host_reset(cmd);
4464 spin_unlock_irq(cmd->device->host->host_lock);
4470 * ipr_device_reset - Reset the device
4471 * @ioa_cfg: ioa config struct
4472 * @res: resource entry struct
4474 * This function issues a device reset to the affected device.
4475 * If the device is a SCSI device, a LUN reset will be sent
4476 * to the device first. If that does not work, a target reset
4477 * will be sent. If the device is a SATA device, a PHY reset will
4481 * 0 on success / non-zero on failure
4483 static int ipr_device_reset(struct ipr_ioa_cfg *ioa_cfg,
4484 struct ipr_resource_entry *res)
4486 struct ipr_cmnd *ipr_cmd;
4487 struct ipr_ioarcb *ioarcb;
4488 struct ipr_cmd_pkt *cmd_pkt;
4489 struct ipr_ioarcb_ata_regs *regs;
4493 ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg);
4494 ioarcb = &ipr_cmd->ioarcb;
4495 cmd_pkt = &ioarcb->cmd_pkt;
4497 if (ipr_cmd->ioa_cfg->sis64) {
4498 regs = &ipr_cmd->i.ata_ioadl.regs;
4499 ioarcb->add_cmd_parms_offset = cpu_to_be16(sizeof(*ioarcb));
4501 regs = &ioarcb->u.add_data.u.regs;
4503 ioarcb->res_handle = res->res_handle;
4504 cmd_pkt->request_type = IPR_RQTYPE_IOACMD;
4505 cmd_pkt->cdb[0] = IPR_RESET_DEVICE;
4506 if (ipr_is_gata(res)) {
4507 cmd_pkt->cdb[2] = IPR_ATA_PHY_RESET;
4508 ioarcb->add_cmd_parms_len = cpu_to_be16(sizeof(regs->flags));
4509 regs->flags |= IPR_ATA_FLAG_STATUS_ON_GOOD_COMPLETION;
4512 ipr_send_blocking_cmd(ipr_cmd, ipr_timeout, IPR_DEVICE_RESET_TIMEOUT);
4513 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
4514 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
4515 if (ipr_is_gata(res) && res->sata_port && ioasc != IPR_IOASC_IOA_WAS_RESET) {
4516 if (ipr_cmd->ioa_cfg->sis64)
4517 memcpy(&res->sata_port->ioasa, &ipr_cmd->s.ioasa64.u.gata,
4518 sizeof(struct ipr_ioasa_gata));
4520 memcpy(&res->sata_port->ioasa, &ipr_cmd->s.ioasa.u.gata,
4521 sizeof(struct ipr_ioasa_gata));
4525 return (IPR_IOASC_SENSE_KEY(ioasc) ? -EIO : 0);
4529 * ipr_sata_reset - Reset the SATA port
4530 * @link: SATA link to reset
4531 * @classes: class of the attached device
4533 * This function issues a SATA phy reset to the affected ATA link.
4536 * 0 on success / non-zero on failure
4538 static int ipr_sata_reset(struct ata_link *link, unsigned int *classes,
4539 unsigned long deadline)
4541 struct ipr_sata_port *sata_port = link->ap->private_data;
4542 struct ipr_ioa_cfg *ioa_cfg = sata_port->ioa_cfg;
4543 struct ipr_resource_entry *res;
4544 unsigned long lock_flags = 0;
4548 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4549 while(ioa_cfg->in_reset_reload) {
4550 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4551 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
4552 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4555 res = sata_port->res;
4557 rc = ipr_device_reset(ioa_cfg, res);
4558 *classes = res->ata_class;
4561 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4567 * ipr_eh_dev_reset - Reset the device
4568 * @scsi_cmd: scsi command struct
4570 * This function issues a device reset to the affected device.
4571 * A LUN reset will be sent to the device first. If that does
4572 * not work, a target reset will be sent.
4577 static int __ipr_eh_dev_reset(struct scsi_cmnd * scsi_cmd)
4579 struct ipr_cmnd *ipr_cmd;
4580 struct ipr_ioa_cfg *ioa_cfg;
4581 struct ipr_resource_entry *res;
4582 struct ata_port *ap;
4586 ioa_cfg = (struct ipr_ioa_cfg *) scsi_cmd->device->host->hostdata;
4587 res = scsi_cmd->device->hostdata;
4593 * If we are currently going through reset/reload, return failed. This will force the
4594 * mid-layer to call ipr_eh_host_reset, which will then go to sleep and wait for the
4597 if (ioa_cfg->in_reset_reload)
4599 if (ioa_cfg->ioa_is_dead)
4602 list_for_each_entry(ipr_cmd, &ioa_cfg->pending_q, queue) {
4603 if (ipr_cmd->ioarcb.res_handle == res->res_handle) {
4604 if (ipr_cmd->scsi_cmd)
4605 ipr_cmd->done = ipr_scsi_eh_done;
4607 ipr_cmd->done = ipr_sata_eh_done;
4608 if (ipr_cmd->qc && !(ipr_cmd->qc->flags & ATA_QCFLAG_FAILED)) {
4609 ipr_cmd->qc->err_mask |= AC_ERR_TIMEOUT;
4610 ipr_cmd->qc->flags |= ATA_QCFLAG_FAILED;
4615 res->resetting_device = 1;
4616 scmd_printk(KERN_ERR, scsi_cmd, "Resetting device\n");
4618 if (ipr_is_gata(res) && res->sata_port) {
4619 ap = res->sata_port->ap;
4620 spin_unlock_irq(scsi_cmd->device->host->host_lock);
4621 ata_std_error_handler(ap);
4622 spin_lock_irq(scsi_cmd->device->host->host_lock);
4624 list_for_each_entry(ipr_cmd, &ioa_cfg->pending_q, queue) {
4625 if (ipr_cmd->ioarcb.res_handle == res->res_handle) {
4631 rc = ipr_device_reset(ioa_cfg, res);
4632 res->resetting_device = 0;
4635 return (rc ? FAILED : SUCCESS);
4638 static int ipr_eh_dev_reset(struct scsi_cmnd * cmd)
4642 spin_lock_irq(cmd->device->host->host_lock);
4643 rc = __ipr_eh_dev_reset(cmd);
4644 spin_unlock_irq(cmd->device->host->host_lock);
4650 * ipr_bus_reset_done - Op done function for bus reset.
4651 * @ipr_cmd: ipr command struct
4653 * This function is the op done function for a bus reset
4658 static void ipr_bus_reset_done(struct ipr_cmnd *ipr_cmd)
4660 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
4661 struct ipr_resource_entry *res;
4664 if (!ioa_cfg->sis64)
4665 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) {
4666 if (res->res_handle == ipr_cmd->ioarcb.res_handle) {
4667 scsi_report_bus_reset(ioa_cfg->host, res->bus);
4673 * If abort has not completed, indicate the reset has, else call the
4674 * abort's done function to wake the sleeping eh thread
4676 if (ipr_cmd->sibling->sibling)
4677 ipr_cmd->sibling->sibling = NULL;
4679 ipr_cmd->sibling->done(ipr_cmd->sibling);
4681 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
4686 * ipr_abort_timeout - An abort task has timed out
4687 * @ipr_cmd: ipr command struct
4689 * This function handles when an abort task times out. If this
4690 * happens we issue a bus reset since we have resources tied
4691 * up that must be freed before returning to the midlayer.
4696 static void ipr_abort_timeout(struct ipr_cmnd *ipr_cmd)
4698 struct ipr_cmnd *reset_cmd;
4699 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
4700 struct ipr_cmd_pkt *cmd_pkt;
4701 unsigned long lock_flags = 0;
4704 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4705 if (ipr_cmd->completion.done || ioa_cfg->in_reset_reload) {
4706 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4710 sdev_printk(KERN_ERR, ipr_cmd->u.sdev, "Abort timed out. Resetting bus.\n");
4711 reset_cmd = ipr_get_free_ipr_cmnd(ioa_cfg);
4712 ipr_cmd->sibling = reset_cmd;
4713 reset_cmd->sibling = ipr_cmd;
4714 reset_cmd->ioarcb.res_handle = ipr_cmd->ioarcb.res_handle;
4715 cmd_pkt = &reset_cmd->ioarcb.cmd_pkt;
4716 cmd_pkt->request_type = IPR_RQTYPE_IOACMD;
4717 cmd_pkt->cdb[0] = IPR_RESET_DEVICE;
4718 cmd_pkt->cdb[2] = IPR_RESET_TYPE_SELECT | IPR_BUS_RESET;
4720 ipr_do_req(reset_cmd, ipr_bus_reset_done, ipr_timeout, IPR_DEVICE_RESET_TIMEOUT);
4721 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4726 * ipr_cancel_op - Cancel specified op
4727 * @scsi_cmd: scsi command struct
4729 * This function cancels specified op.
4734 static int ipr_cancel_op(struct scsi_cmnd * scsi_cmd)
4736 struct ipr_cmnd *ipr_cmd;
4737 struct ipr_ioa_cfg *ioa_cfg;
4738 struct ipr_resource_entry *res;
4739 struct ipr_cmd_pkt *cmd_pkt;
4744 ioa_cfg = (struct ipr_ioa_cfg *)scsi_cmd->device->host->hostdata;
4745 res = scsi_cmd->device->hostdata;
4747 /* If we are currently going through reset/reload, return failed.
4748 * This will force the mid-layer to call ipr_eh_host_reset,
4749 * which will then go to sleep and wait for the reset to complete
4751 if (ioa_cfg->in_reset_reload || ioa_cfg->ioa_is_dead)
4753 if (!res || !ipr_is_gscsi(res))
4756 list_for_each_entry(ipr_cmd, &ioa_cfg->pending_q, queue) {
4757 if (ipr_cmd->scsi_cmd == scsi_cmd) {
4758 ipr_cmd->done = ipr_scsi_eh_done;
4767 ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg);
4768 ipr_cmd->ioarcb.res_handle = res->res_handle;
4769 cmd_pkt = &ipr_cmd->ioarcb.cmd_pkt;
4770 cmd_pkt->request_type = IPR_RQTYPE_IOACMD;
4771 cmd_pkt->cdb[0] = IPR_CANCEL_ALL_REQUESTS;
4772 ipr_cmd->u.sdev = scsi_cmd->device;
4774 scmd_printk(KERN_ERR, scsi_cmd, "Aborting command: %02X\n",
4776 ipr_send_blocking_cmd(ipr_cmd, ipr_abort_timeout, IPR_CANCEL_ALL_TIMEOUT);
4777 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
4780 * If the abort task timed out and we sent a bus reset, we will get
4781 * one the following responses to the abort
4783 if (ioasc == IPR_IOASC_BUS_WAS_RESET || ioasc == IPR_IOASC_SYNC_REQUIRED) {
4788 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
4789 if (!ipr_is_naca_model(res))
4790 res->needs_sync_complete = 1;
4793 return (IPR_IOASC_SENSE_KEY(ioasc) ? FAILED : SUCCESS);
4797 * ipr_eh_abort - Abort a single op
4798 * @scsi_cmd: scsi command struct
4803 static int ipr_eh_abort(struct scsi_cmnd * scsi_cmd)
4805 unsigned long flags;
4810 spin_lock_irqsave(scsi_cmd->device->host->host_lock, flags);
4811 rc = ipr_cancel_op(scsi_cmd);
4812 spin_unlock_irqrestore(scsi_cmd->device->host->host_lock, flags);
4819 * ipr_handle_other_interrupt - Handle "other" interrupts
4820 * @ioa_cfg: ioa config struct
4821 * @int_reg: interrupt register
4824 * IRQ_NONE / IRQ_HANDLED
4826 static irqreturn_t ipr_handle_other_interrupt(struct ipr_ioa_cfg *ioa_cfg,
4827 volatile u32 int_reg)
4829 irqreturn_t rc = IRQ_HANDLED;
4831 if (int_reg & IPR_PCII_IOA_TRANS_TO_OPER) {
4832 /* Mask the interrupt */
4833 writel(IPR_PCII_IOA_TRANS_TO_OPER, ioa_cfg->regs.set_interrupt_mask_reg);
4835 /* Clear the interrupt */
4836 writel(IPR_PCII_IOA_TRANS_TO_OPER, ioa_cfg->regs.clr_interrupt_reg);
4837 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg);
4839 list_del(&ioa_cfg->reset_cmd->queue);
4840 del_timer(&ioa_cfg->reset_cmd->timer);
4841 ipr_reset_ioa_job(ioa_cfg->reset_cmd);
4843 if (int_reg & IPR_PCII_IOA_UNIT_CHECKED)
4844 ioa_cfg->ioa_unit_checked = 1;
4846 dev_err(&ioa_cfg->pdev->dev,
4847 "Permanent IOA failure. 0x%08X\n", int_reg);
4849 if (WAIT_FOR_DUMP == ioa_cfg->sdt_state)
4850 ioa_cfg->sdt_state = GET_DUMP;
4852 ipr_mask_and_clear_interrupts(ioa_cfg, ~0);
4853 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
4860 * ipr_isr_eh - Interrupt service routine error handler
4861 * @ioa_cfg: ioa config struct
4862 * @msg: message to log
4867 static void ipr_isr_eh(struct ipr_ioa_cfg *ioa_cfg, char *msg)
4869 ioa_cfg->errors_logged++;
4870 dev_err(&ioa_cfg->pdev->dev, "%s\n", msg);
4872 if (WAIT_FOR_DUMP == ioa_cfg->sdt_state)
4873 ioa_cfg->sdt_state = GET_DUMP;
4875 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
4879 * ipr_isr - Interrupt service routine
4881 * @devp: pointer to ioa config struct
4884 * IRQ_NONE / IRQ_HANDLED
4886 static irqreturn_t ipr_isr(int irq, void *devp)
4888 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)devp;
4889 unsigned long lock_flags = 0;
4890 volatile u32 int_reg, int_mask_reg;
4894 struct ipr_cmnd *ipr_cmd;
4895 irqreturn_t rc = IRQ_NONE;
4897 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4899 /* If interrupts are disabled, ignore the interrupt */
4900 if (!ioa_cfg->allow_interrupts) {
4901 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4905 int_mask_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg32);
4906 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg32) & ~int_mask_reg;
4908 /* If an interrupt on the adapter did not occur, ignore it.
4909 * Or in the case of SIS 64, check for a stage change interrupt.
4911 if (unlikely((int_reg & IPR_PCII_OPER_INTERRUPTS) == 0)) {
4912 if (ioa_cfg->sis64) {
4913 int_mask_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg);
4914 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg) & ~int_mask_reg;
4915 if (int_reg & IPR_PCII_IPL_STAGE_CHANGE) {
4917 /* clear stage change */
4918 writel(IPR_PCII_IPL_STAGE_CHANGE, ioa_cfg->regs.clr_interrupt_reg);
4919 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg) & ~int_mask_reg;
4920 list_del(&ioa_cfg->reset_cmd->queue);
4921 del_timer(&ioa_cfg->reset_cmd->timer);
4922 ipr_reset_ioa_job(ioa_cfg->reset_cmd);
4923 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4928 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4935 while ((be32_to_cpu(*ioa_cfg->hrrq_curr) & IPR_HRRQ_TOGGLE_BIT) ==
4936 ioa_cfg->toggle_bit) {
4938 cmd_index = (be32_to_cpu(*ioa_cfg->hrrq_curr) &
4939 IPR_HRRQ_REQ_RESP_HANDLE_MASK) >> IPR_HRRQ_REQ_RESP_HANDLE_SHIFT;
4941 if (unlikely(cmd_index >= IPR_NUM_CMD_BLKS)) {
4942 ipr_isr_eh(ioa_cfg, "Invalid response handle from IOA");
4943 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4947 ipr_cmd = ioa_cfg->ipr_cmnd_list[cmd_index];
4949 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
4951 ipr_trc_hook(ipr_cmd, IPR_TRACE_FINISH, ioasc);
4953 list_del(&ipr_cmd->queue);
4954 del_timer(&ipr_cmd->timer);
4955 ipr_cmd->done(ipr_cmd);
4959 if (ioa_cfg->hrrq_curr < ioa_cfg->hrrq_end) {
4960 ioa_cfg->hrrq_curr++;
4962 ioa_cfg->hrrq_curr = ioa_cfg->hrrq_start;
4963 ioa_cfg->toggle_bit ^= 1u;
4967 if (ipr_cmd != NULL) {
4968 /* Clear the PCI interrupt */
4970 writel(IPR_PCII_HRRQ_UPDATED, ioa_cfg->regs.clr_interrupt_reg32);
4971 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg32) & ~int_mask_reg;
4972 } while (int_reg & IPR_PCII_HRRQ_UPDATED &&
4973 num_hrrq++ < IPR_MAX_HRRQ_RETRIES);
4975 if (int_reg & IPR_PCII_HRRQ_UPDATED) {
4976 ipr_isr_eh(ioa_cfg, "Error clearing HRRQ");
4977 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4985 if (unlikely(rc == IRQ_NONE))
4986 rc = ipr_handle_other_interrupt(ioa_cfg, int_reg);
4988 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4993 * ipr_build_ioadl64 - Build a scatter/gather list and map the buffer
4994 * @ioa_cfg: ioa config struct
4995 * @ipr_cmd: ipr command struct
4998 * 0 on success / -1 on failure
5000 static int ipr_build_ioadl64(struct ipr_ioa_cfg *ioa_cfg,
5001 struct ipr_cmnd *ipr_cmd)
5004 struct scatterlist *sg;
5006 u32 ioadl_flags = 0;
5007 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd;
5008 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
5009 struct ipr_ioadl64_desc *ioadl64 = ipr_cmd->i.ioadl64;
5011 length = scsi_bufflen(scsi_cmd);
5015 nseg = scsi_dma_map(scsi_cmd);
5017 dev_err(&ioa_cfg->pdev->dev, "pci_map_sg failed!\n");
5021 ipr_cmd->dma_use_sg = nseg;
5023 ioarcb->data_transfer_length = cpu_to_be32(length);
5025 cpu_to_be32(sizeof(struct ipr_ioadl64_desc) * ipr_cmd->dma_use_sg);
5027 if (scsi_cmd->sc_data_direction == DMA_TO_DEVICE) {
5028 ioadl_flags = IPR_IOADL_FLAGS_WRITE;
5029 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ;
5030 } else if (scsi_cmd->sc_data_direction == DMA_FROM_DEVICE)
5031 ioadl_flags = IPR_IOADL_FLAGS_READ;
5033 scsi_for_each_sg(scsi_cmd, sg, ipr_cmd->dma_use_sg, i) {
5034 ioadl64[i].flags = cpu_to_be32(ioadl_flags);
5035 ioadl64[i].data_len = cpu_to_be32(sg_dma_len(sg));
5036 ioadl64[i].address = cpu_to_be64(sg_dma_address(sg));
5039 ioadl64[i-1].flags |= cpu_to_be32(IPR_IOADL_FLAGS_LAST);
5044 * ipr_build_ioadl - Build a scatter/gather list and map the buffer
5045 * @ioa_cfg: ioa config struct
5046 * @ipr_cmd: ipr command struct
5049 * 0 on success / -1 on failure
5051 static int ipr_build_ioadl(struct ipr_ioa_cfg *ioa_cfg,
5052 struct ipr_cmnd *ipr_cmd)
5055 struct scatterlist *sg;
5057 u32 ioadl_flags = 0;
5058 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd;
5059 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
5060 struct ipr_ioadl_desc *ioadl = ipr_cmd->i.ioadl;
5062 length = scsi_bufflen(scsi_cmd);
5066 nseg = scsi_dma_map(scsi_cmd);
5068 dev_err(&ioa_cfg->pdev->dev, "pci_map_sg failed!\n");
5072 ipr_cmd->dma_use_sg = nseg;
5074 if (scsi_cmd->sc_data_direction == DMA_TO_DEVICE) {
5075 ioadl_flags = IPR_IOADL_FLAGS_WRITE;
5076 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ;
5077 ioarcb->data_transfer_length = cpu_to_be32(length);
5079 cpu_to_be32(sizeof(struct ipr_ioadl_desc) * ipr_cmd->dma_use_sg);
5080 } else if (scsi_cmd->sc_data_direction == DMA_FROM_DEVICE) {
5081 ioadl_flags = IPR_IOADL_FLAGS_READ;
5082 ioarcb->read_data_transfer_length = cpu_to_be32(length);
5083 ioarcb->read_ioadl_len =
5084 cpu_to_be32(sizeof(struct ipr_ioadl_desc) * ipr_cmd->dma_use_sg);
5087 if (ipr_cmd->dma_use_sg <= ARRAY_SIZE(ioarcb->u.add_data.u.ioadl)) {
5088 ioadl = ioarcb->u.add_data.u.ioadl;
5089 ioarcb->write_ioadl_addr = cpu_to_be32((ipr_cmd->dma_addr) +
5090 offsetof(struct ipr_ioarcb, u.add_data));
5091 ioarcb->read_ioadl_addr = ioarcb->write_ioadl_addr;
5094 scsi_for_each_sg(scsi_cmd, sg, ipr_cmd->dma_use_sg, i) {
5095 ioadl[i].flags_and_data_len =
5096 cpu_to_be32(ioadl_flags | sg_dma_len(sg));
5097 ioadl[i].address = cpu_to_be32(sg_dma_address(sg));
5100 ioadl[i-1].flags_and_data_len |= cpu_to_be32(IPR_IOADL_FLAGS_LAST);
5105 * ipr_get_task_attributes - Translate SPI Q-Tag to task attributes
5106 * @scsi_cmd: scsi command struct
5111 static u8 ipr_get_task_attributes(struct scsi_cmnd *scsi_cmd)
5114 u8 rc = IPR_FLAGS_LO_UNTAGGED_TASK;
5116 if (scsi_populate_tag_msg(scsi_cmd, tag)) {
5118 case MSG_SIMPLE_TAG:
5119 rc = IPR_FLAGS_LO_SIMPLE_TASK;
5122 rc = IPR_FLAGS_LO_HEAD_OF_Q_TASK;
5124 case MSG_ORDERED_TAG:
5125 rc = IPR_FLAGS_LO_ORDERED_TASK;
5134 * ipr_erp_done - Process completion of ERP for a device
5135 * @ipr_cmd: ipr command struct
5137 * This function copies the sense buffer into the scsi_cmd
5138 * struct and pushes the scsi_done function.
5143 static void ipr_erp_done(struct ipr_cmnd *ipr_cmd)
5145 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd;
5146 struct ipr_resource_entry *res = scsi_cmd->device->hostdata;
5147 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
5148 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
5150 if (IPR_IOASC_SENSE_KEY(ioasc) > 0) {
5151 scsi_cmd->result |= (DID_ERROR << 16);
5152 scmd_printk(KERN_ERR, scsi_cmd,
5153 "Request Sense failed with IOASC: 0x%08X\n", ioasc);
5155 memcpy(scsi_cmd->sense_buffer, ipr_cmd->sense_buffer,
5156 SCSI_SENSE_BUFFERSIZE);
5160 if (!ipr_is_naca_model(res))
5161 res->needs_sync_complete = 1;
5164 scsi_dma_unmap(ipr_cmd->scsi_cmd);
5165 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
5166 scsi_cmd->scsi_done(scsi_cmd);
5170 * ipr_reinit_ipr_cmnd_for_erp - Re-initialize a cmnd block to be used for ERP
5171 * @ipr_cmd: ipr command struct
5176 static void ipr_reinit_ipr_cmnd_for_erp(struct ipr_cmnd *ipr_cmd)
5178 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
5179 struct ipr_ioasa *ioasa = &ipr_cmd->s.ioasa;
5180 dma_addr_t dma_addr = ipr_cmd->dma_addr;
5182 memset(&ioarcb->cmd_pkt, 0, sizeof(struct ipr_cmd_pkt));
5183 ioarcb->data_transfer_length = 0;
5184 ioarcb->read_data_transfer_length = 0;
5185 ioarcb->ioadl_len = 0;
5186 ioarcb->read_ioadl_len = 0;
5187 ioasa->hdr.ioasc = 0;
5188 ioasa->hdr.residual_data_len = 0;
5190 if (ipr_cmd->ioa_cfg->sis64)
5191 ioarcb->u.sis64_addr_data.data_ioadl_addr =
5192 cpu_to_be64(dma_addr + offsetof(struct ipr_cmnd, i.ioadl64));
5194 ioarcb->write_ioadl_addr =
5195 cpu_to_be32(dma_addr + offsetof(struct ipr_cmnd, i.ioadl));
5196 ioarcb->read_ioadl_addr = ioarcb->write_ioadl_addr;
5201 * ipr_erp_request_sense - Send request sense to a device
5202 * @ipr_cmd: ipr command struct
5204 * This function sends a request sense to a device as a result
5205 * of a check condition.
5210 static void ipr_erp_request_sense(struct ipr_cmnd *ipr_cmd)
5212 struct ipr_cmd_pkt *cmd_pkt = &ipr_cmd->ioarcb.cmd_pkt;
5213 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
5215 if (IPR_IOASC_SENSE_KEY(ioasc) > 0) {
5216 ipr_erp_done(ipr_cmd);
5220 ipr_reinit_ipr_cmnd_for_erp(ipr_cmd);
5222 cmd_pkt->request_type = IPR_RQTYPE_SCSICDB;
5223 cmd_pkt->cdb[0] = REQUEST_SENSE;
5224 cmd_pkt->cdb[4] = SCSI_SENSE_BUFFERSIZE;
5225 cmd_pkt->flags_hi |= IPR_FLAGS_HI_SYNC_OVERRIDE;
5226 cmd_pkt->flags_hi |= IPR_FLAGS_HI_NO_ULEN_CHK;
5227 cmd_pkt->timeout = cpu_to_be16(IPR_REQUEST_SENSE_TIMEOUT / HZ);
5229 ipr_init_ioadl(ipr_cmd, ipr_cmd->sense_buffer_dma,
5230 SCSI_SENSE_BUFFERSIZE, IPR_IOADL_FLAGS_READ_LAST);
5232 ipr_do_req(ipr_cmd, ipr_erp_done, ipr_timeout,
5233 IPR_REQUEST_SENSE_TIMEOUT * 2);
5237 * ipr_erp_cancel_all - Send cancel all to a device
5238 * @ipr_cmd: ipr command struct
5240 * This function sends a cancel all to a device to clear the
5241 * queue. If we are running TCQ on the device, QERR is set to 1,
5242 * which means all outstanding ops have been dropped on the floor.
5243 * Cancel all will return them to us.
5248 static void ipr_erp_cancel_all(struct ipr_cmnd *ipr_cmd)
5250 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd;
5251 struct ipr_resource_entry *res = scsi_cmd->device->hostdata;
5252 struct ipr_cmd_pkt *cmd_pkt;
5256 ipr_reinit_ipr_cmnd_for_erp(ipr_cmd);
5258 if (!scsi_get_tag_type(scsi_cmd->device)) {
5259 ipr_erp_request_sense(ipr_cmd);
5263 cmd_pkt = &ipr_cmd->ioarcb.cmd_pkt;
5264 cmd_pkt->request_type = IPR_RQTYPE_IOACMD;
5265 cmd_pkt->cdb[0] = IPR_CANCEL_ALL_REQUESTS;
5267 ipr_do_req(ipr_cmd, ipr_erp_request_sense, ipr_timeout,
5268 IPR_CANCEL_ALL_TIMEOUT);
5272 * ipr_dump_ioasa - Dump contents of IOASA
5273 * @ioa_cfg: ioa config struct
5274 * @ipr_cmd: ipr command struct
5275 * @res: resource entry struct
5277 * This function is invoked by the interrupt handler when ops
5278 * fail. It will log the IOASA if appropriate. Only called
5284 static void ipr_dump_ioasa(struct ipr_ioa_cfg *ioa_cfg,
5285 struct ipr_cmnd *ipr_cmd, struct ipr_resource_entry *res)
5289 u32 ioasc, fd_ioasc;
5290 struct ipr_ioasa *ioasa = &ipr_cmd->s.ioasa;
5291 __be32 *ioasa_data = (__be32 *)ioasa;
5294 ioasc = be32_to_cpu(ioasa->hdr.ioasc) & IPR_IOASC_IOASC_MASK;
5295 fd_ioasc = be32_to_cpu(ioasa->hdr.fd_ioasc) & IPR_IOASC_IOASC_MASK;
5300 if (ioa_cfg->log_level < IPR_DEFAULT_LOG_LEVEL)
5303 if (ioasc == IPR_IOASC_BUS_WAS_RESET && fd_ioasc)
5304 error_index = ipr_get_error(fd_ioasc);
5306 error_index = ipr_get_error(ioasc);
5308 if (ioa_cfg->log_level < IPR_MAX_LOG_LEVEL) {
5309 /* Don't log an error if the IOA already logged one */
5310 if (ioasa->hdr.ilid != 0)
5313 if (!ipr_is_gscsi(res))
5316 if (ipr_error_table[error_index].log_ioasa == 0)
5320 ipr_res_err(ioa_cfg, res, "%s\n", ipr_error_table[error_index].error);
5322 data_len = be16_to_cpu(ioasa->hdr.ret_stat_len);
5323 if (ioa_cfg->sis64 && sizeof(struct ipr_ioasa64) < data_len)
5324 data_len = sizeof(struct ipr_ioasa64);
5325 else if (!ioa_cfg->sis64 && sizeof(struct ipr_ioasa) < data_len)
5326 data_len = sizeof(struct ipr_ioasa);
5328 ipr_err("IOASA Dump:\n");
5330 for (i = 0; i < data_len / 4; i += 4) {
5331 ipr_err("%08X: %08X %08X %08X %08X\n", i*4,
5332 be32_to_cpu(ioasa_data[i]),
5333 be32_to_cpu(ioasa_data[i+1]),
5334 be32_to_cpu(ioasa_data[i+2]),
5335 be32_to_cpu(ioasa_data[i+3]));
5340 * ipr_gen_sense - Generate SCSI sense data from an IOASA
5342 * @sense_buf: sense data buffer
5347 static void ipr_gen_sense(struct ipr_cmnd *ipr_cmd)
5350 u8 *sense_buf = ipr_cmd->scsi_cmd->sense_buffer;
5351 struct ipr_resource_entry *res = ipr_cmd->scsi_cmd->device->hostdata;
5352 struct ipr_ioasa *ioasa = &ipr_cmd->s.ioasa;
5353 u32 ioasc = be32_to_cpu(ioasa->hdr.ioasc);
5355 memset(sense_buf, 0, SCSI_SENSE_BUFFERSIZE);
5357 if (ioasc >= IPR_FIRST_DRIVER_IOASC)
5360 ipr_cmd->scsi_cmd->result = SAM_STAT_CHECK_CONDITION;
5362 if (ipr_is_vset_device(res) &&
5363 ioasc == IPR_IOASC_MED_DO_NOT_REALLOC &&
5364 ioasa->u.vset.failing_lba_hi != 0) {
5365 sense_buf[0] = 0x72;
5366 sense_buf[1] = IPR_IOASC_SENSE_KEY(ioasc);
5367 sense_buf[2] = IPR_IOASC_SENSE_CODE(ioasc);
5368 sense_buf[3] = IPR_IOASC_SENSE_QUAL(ioasc);
5372 sense_buf[9] = 0x0A;
5373 sense_buf[10] = 0x80;
5375 failing_lba = be32_to_cpu(ioasa->u.vset.failing_lba_hi);
5377 sense_buf[12] = (failing_lba & 0xff000000) >> 24;
5378 sense_buf[13] = (failing_lba & 0x00ff0000) >> 16;
5379 sense_buf[14] = (failing_lba & 0x0000ff00) >> 8;
5380 sense_buf[15] = failing_lba & 0x000000ff;
5382 failing_lba = be32_to_cpu(ioasa->u.vset.failing_lba_lo);
5384 sense_buf[16] = (failing_lba & 0xff000000) >> 24;
5385 sense_buf[17] = (failing_lba & 0x00ff0000) >> 16;
5386 sense_buf[18] = (failing_lba & 0x0000ff00) >> 8;
5387 sense_buf[19] = failing_lba & 0x000000ff;
5389 sense_buf[0] = 0x70;
5390 sense_buf[2] = IPR_IOASC_SENSE_KEY(ioasc);
5391 sense_buf[12] = IPR_IOASC_SENSE_CODE(ioasc);
5392 sense_buf[13] = IPR_IOASC_SENSE_QUAL(ioasc);
5394 /* Illegal request */
5395 if ((IPR_IOASC_SENSE_KEY(ioasc) == 0x05) &&
5396 (be32_to_cpu(ioasa->hdr.ioasc_specific) & IPR_FIELD_POINTER_VALID)) {
5397 sense_buf[7] = 10; /* additional length */
5399 /* IOARCB was in error */
5400 if (IPR_IOASC_SENSE_CODE(ioasc) == 0x24)
5401 sense_buf[15] = 0xC0;
5402 else /* Parameter data was invalid */
5403 sense_buf[15] = 0x80;
5406 ((IPR_FIELD_POINTER_MASK &
5407 be32_to_cpu(ioasa->hdr.ioasc_specific)) >> 8) & 0xff;
5409 (IPR_FIELD_POINTER_MASK &
5410 be32_to_cpu(ioasa->hdr.ioasc_specific)) & 0xff;
5412 if (ioasc == IPR_IOASC_MED_DO_NOT_REALLOC) {
5413 if (ipr_is_vset_device(res))
5414 failing_lba = be32_to_cpu(ioasa->u.vset.failing_lba_lo);
5416 failing_lba = be32_to_cpu(ioasa->u.dasd.failing_lba);
5418 sense_buf[0] |= 0x80; /* Or in the Valid bit */
5419 sense_buf[3] = (failing_lba & 0xff000000) >> 24;
5420 sense_buf[4] = (failing_lba & 0x00ff0000) >> 16;
5421 sense_buf[5] = (failing_lba & 0x0000ff00) >> 8;
5422 sense_buf[6] = failing_lba & 0x000000ff;
5425 sense_buf[7] = 6; /* additional length */
5431 * ipr_get_autosense - Copy autosense data to sense buffer
5432 * @ipr_cmd: ipr command struct
5434 * This function copies the autosense buffer to the buffer
5435 * in the scsi_cmd, if there is autosense available.
5438 * 1 if autosense was available / 0 if not
5440 static int ipr_get_autosense(struct ipr_cmnd *ipr_cmd)
5442 struct ipr_ioasa *ioasa = &ipr_cmd->s.ioasa;
5443 struct ipr_ioasa64 *ioasa64 = &ipr_cmd->s.ioasa64;
5445 if ((be32_to_cpu(ioasa->hdr.ioasc_specific) & IPR_AUTOSENSE_VALID) == 0)
5448 if (ipr_cmd->ioa_cfg->sis64)
5449 memcpy(ipr_cmd->scsi_cmd->sense_buffer, ioasa64->auto_sense.data,
5450 min_t(u16, be16_to_cpu(ioasa64->auto_sense.auto_sense_len),
5451 SCSI_SENSE_BUFFERSIZE));
5453 memcpy(ipr_cmd->scsi_cmd->sense_buffer, ioasa->auto_sense.data,
5454 min_t(u16, be16_to_cpu(ioasa->auto_sense.auto_sense_len),
5455 SCSI_SENSE_BUFFERSIZE));
5460 * ipr_erp_start - Process an error response for a SCSI op
5461 * @ioa_cfg: ioa config struct
5462 * @ipr_cmd: ipr command struct
5464 * This function determines whether or not to initiate ERP
5465 * on the affected device.
5470 static void ipr_erp_start(struct ipr_ioa_cfg *ioa_cfg,
5471 struct ipr_cmnd *ipr_cmd)
5473 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd;
5474 struct ipr_resource_entry *res = scsi_cmd->device->hostdata;
5475 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
5476 u32 masked_ioasc = ioasc & IPR_IOASC_IOASC_MASK;
5479 ipr_scsi_eh_done(ipr_cmd);
5483 if (!ipr_is_gscsi(res) && masked_ioasc != IPR_IOASC_HW_DEV_BUS_STATUS)
5484 ipr_gen_sense(ipr_cmd);
5486 ipr_dump_ioasa(ioa_cfg, ipr_cmd, res);
5488 switch (masked_ioasc) {
5489 case IPR_IOASC_ABORTED_CMD_TERM_BY_HOST:
5490 if (ipr_is_naca_model(res))
5491 scsi_cmd->result |= (DID_ABORT << 16);
5493 scsi_cmd->result |= (DID_IMM_RETRY << 16);
5495 case IPR_IOASC_IR_RESOURCE_HANDLE:
5496 case IPR_IOASC_IR_NO_CMDS_TO_2ND_IOA:
5497 scsi_cmd->result |= (DID_NO_CONNECT << 16);
5499 case IPR_IOASC_HW_SEL_TIMEOUT:
5500 scsi_cmd->result |= (DID_NO_CONNECT << 16);
5501 if (!ipr_is_naca_model(res))
5502 res->needs_sync_complete = 1;
5504 case IPR_IOASC_SYNC_REQUIRED:
5506 res->needs_sync_complete = 1;
5507 scsi_cmd->result |= (DID_IMM_RETRY << 16);
5509 case IPR_IOASC_MED_DO_NOT_REALLOC: /* prevent retries */
5510 case IPR_IOASA_IR_DUAL_IOA_DISABLED:
5511 scsi_cmd->result |= (DID_PASSTHROUGH << 16);
5513 case IPR_IOASC_BUS_WAS_RESET:
5514 case IPR_IOASC_BUS_WAS_RESET_BY_OTHER:
5516 * Report the bus reset and ask for a retry. The device
5517 * will give CC/UA the next command.
5519 if (!res->resetting_device)
5520 scsi_report_bus_reset(ioa_cfg->host, scsi_cmd->device->channel);
5521 scsi_cmd->result |= (DID_ERROR << 16);
5522 if (!ipr_is_naca_model(res))
5523 res->needs_sync_complete = 1;
5525 case IPR_IOASC_HW_DEV_BUS_STATUS:
5526 scsi_cmd->result |= IPR_IOASC_SENSE_STATUS(ioasc);
5527 if (IPR_IOASC_SENSE_STATUS(ioasc) == SAM_STAT_CHECK_CONDITION) {
5528 if (!ipr_get_autosense(ipr_cmd)) {
5529 if (!ipr_is_naca_model(res)) {
5530 ipr_erp_cancel_all(ipr_cmd);
5535 if (!ipr_is_naca_model(res))
5536 res->needs_sync_complete = 1;
5538 case IPR_IOASC_NR_INIT_CMD_REQUIRED:
5541 if (IPR_IOASC_SENSE_KEY(ioasc) > RECOVERED_ERROR)
5542 scsi_cmd->result |= (DID_ERROR << 16);
5543 if (!ipr_is_vset_device(res) && !ipr_is_naca_model(res))
5544 res->needs_sync_complete = 1;
5548 scsi_dma_unmap(ipr_cmd->scsi_cmd);
5549 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
5550 scsi_cmd->scsi_done(scsi_cmd);
5554 * ipr_scsi_done - mid-layer done function
5555 * @ipr_cmd: ipr command struct
5557 * This function is invoked by the interrupt handler for
5558 * ops generated by the SCSI mid-layer
5563 static void ipr_scsi_done(struct ipr_cmnd *ipr_cmd)
5565 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
5566 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd;
5567 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
5569 scsi_set_resid(scsi_cmd, be32_to_cpu(ipr_cmd->s.ioasa.hdr.residual_data_len));
5571 if (likely(IPR_IOASC_SENSE_KEY(ioasc) == 0)) {
5572 scsi_dma_unmap(ipr_cmd->scsi_cmd);
5573 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
5574 scsi_cmd->scsi_done(scsi_cmd);
5576 ipr_erp_start(ioa_cfg, ipr_cmd);
5580 * ipr_queuecommand - Queue a mid-layer request
5581 * @scsi_cmd: scsi command struct
5582 * @done: done function
5584 * This function queues a request generated by the mid-layer.
5588 * SCSI_MLQUEUE_DEVICE_BUSY if device is busy
5589 * SCSI_MLQUEUE_HOST_BUSY if host is busy
5591 static int ipr_queuecommand(struct scsi_cmnd *scsi_cmd,
5592 void (*done) (struct scsi_cmnd *))
5594 struct ipr_ioa_cfg *ioa_cfg;
5595 struct ipr_resource_entry *res;
5596 struct ipr_ioarcb *ioarcb;
5597 struct ipr_cmnd *ipr_cmd;
5600 scsi_cmd->scsi_done = done;
5601 ioa_cfg = (struct ipr_ioa_cfg *)scsi_cmd->device->host->hostdata;
5602 res = scsi_cmd->device->hostdata;
5603 scsi_cmd->result = (DID_OK << 16);
5606 * We are currently blocking all devices due to a host reset
5607 * We have told the host to stop giving us new requests, but
5608 * ERP ops don't count. FIXME
5610 if (unlikely(!ioa_cfg->allow_cmds && !ioa_cfg->ioa_is_dead))
5611 return SCSI_MLQUEUE_HOST_BUSY;
5614 * FIXME - Create scsi_set_host_offline interface
5615 * and the ioa_is_dead check can be removed
5617 if (unlikely(ioa_cfg->ioa_is_dead || !res)) {
5618 memset(scsi_cmd->sense_buffer, 0, SCSI_SENSE_BUFFERSIZE);
5619 scsi_cmd->result = (DID_NO_CONNECT << 16);
5620 scsi_cmd->scsi_done(scsi_cmd);
5624 if (ipr_is_gata(res) && res->sata_port)
5625 return ata_sas_queuecmd(scsi_cmd, done, res->sata_port->ap);
5627 ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg);
5628 ioarcb = &ipr_cmd->ioarcb;
5629 list_add_tail(&ipr_cmd->queue, &ioa_cfg->pending_q);
5631 memcpy(ioarcb->cmd_pkt.cdb, scsi_cmd->cmnd, scsi_cmd->cmd_len);
5632 ipr_cmd->scsi_cmd = scsi_cmd;
5633 ioarcb->res_handle = res->res_handle;
5634 ipr_cmd->done = ipr_scsi_done;
5635 ipr_trc_hook(ipr_cmd, IPR_TRACE_START, IPR_GET_RES_PHYS_LOC(res));
5637 if (ipr_is_gscsi(res) || ipr_is_vset_device(res)) {
5638 if (scsi_cmd->underflow == 0)
5639 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_NO_ULEN_CHK;
5641 if (res->needs_sync_complete) {
5642 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_SYNC_COMPLETE;
5643 res->needs_sync_complete = 0;
5646 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_NO_LINK_DESC;
5647 ioarcb->cmd_pkt.flags_lo |= IPR_FLAGS_LO_DELAY_AFTER_RST;
5648 ioarcb->cmd_pkt.flags_lo |= IPR_FLAGS_LO_ALIGNED_BFR;
5649 ioarcb->cmd_pkt.flags_lo |= ipr_get_task_attributes(scsi_cmd);
5652 if (scsi_cmd->cmnd[0] >= 0xC0 &&
5653 (!ipr_is_gscsi(res) || scsi_cmd->cmnd[0] == IPR_QUERY_RSRC_STATE))
5654 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_IOACMD;
5656 if (likely(rc == 0)) {
5658 rc = ipr_build_ioadl64(ioa_cfg, ipr_cmd);
5660 rc = ipr_build_ioadl(ioa_cfg, ipr_cmd);
5663 if (likely(rc == 0)) {
5665 ipr_send_command(ipr_cmd);
5667 list_move_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
5668 return SCSI_MLQUEUE_HOST_BUSY;
5675 * ipr_ioctl - IOCTL handler
5676 * @sdev: scsi device struct
5681 * 0 on success / other on failure
5683 static int ipr_ioctl(struct scsi_device *sdev, int cmd, void __user *arg)
5685 struct ipr_resource_entry *res;
5687 res = (struct ipr_resource_entry *)sdev->hostdata;
5688 if (res && ipr_is_gata(res)) {
5689 if (cmd == HDIO_GET_IDENTITY)
5691 return ata_sas_scsi_ioctl(res->sata_port->ap, sdev, cmd, arg);
5698 * ipr_info - Get information about the card/driver
5699 * @scsi_host: scsi host struct
5702 * pointer to buffer with description string
5704 static const char * ipr_ioa_info(struct Scsi_Host *host)
5706 static char buffer[512];
5707 struct ipr_ioa_cfg *ioa_cfg;
5708 unsigned long lock_flags = 0;
5710 ioa_cfg = (struct ipr_ioa_cfg *) host->hostdata;
5712 spin_lock_irqsave(host->host_lock, lock_flags);
5713 sprintf(buffer, "IBM %X Storage Adapter", ioa_cfg->type);
5714 spin_unlock_irqrestore(host->host_lock, lock_flags);
5719 static struct scsi_host_template driver_template = {
5720 .module = THIS_MODULE,
5722 .info = ipr_ioa_info,
5724 .queuecommand = ipr_queuecommand,
5725 .eh_abort_handler = ipr_eh_abort,
5726 .eh_device_reset_handler = ipr_eh_dev_reset,
5727 .eh_host_reset_handler = ipr_eh_host_reset,
5728 .slave_alloc = ipr_slave_alloc,
5729 .slave_configure = ipr_slave_configure,
5730 .slave_destroy = ipr_slave_destroy,
5731 .target_alloc = ipr_target_alloc,
5732 .target_destroy = ipr_target_destroy,
5733 .change_queue_depth = ipr_change_queue_depth,
5734 .change_queue_type = ipr_change_queue_type,
5735 .bios_param = ipr_biosparam,
5736 .can_queue = IPR_MAX_COMMANDS,
5738 .sg_tablesize = IPR_MAX_SGLIST,
5739 .max_sectors = IPR_IOA_MAX_SECTORS,
5740 .cmd_per_lun = IPR_MAX_CMD_PER_LUN,
5741 .use_clustering = ENABLE_CLUSTERING,
5742 .shost_attrs = ipr_ioa_attrs,
5743 .sdev_attrs = ipr_dev_attrs,
5744 .proc_name = IPR_NAME
5748 * ipr_ata_phy_reset - libata phy_reset handler
5749 * @ap: ata port to reset
5752 static void ipr_ata_phy_reset(struct ata_port *ap)
5754 unsigned long flags;
5755 struct ipr_sata_port *sata_port = ap->private_data;
5756 struct ipr_resource_entry *res = sata_port->res;
5757 struct ipr_ioa_cfg *ioa_cfg = sata_port->ioa_cfg;
5761 spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
5762 while(ioa_cfg->in_reset_reload) {
5763 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
5764 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
5765 spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
5768 if (!ioa_cfg->allow_cmds)
5771 rc = ipr_device_reset(ioa_cfg, res);
5774 ap->link.device[0].class = ATA_DEV_NONE;
5778 ap->link.device[0].class = res->ata_class;
5779 if (ap->link.device[0].class == ATA_DEV_UNKNOWN)
5780 ap->link.device[0].class = ATA_DEV_NONE;
5783 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
5788 * ipr_ata_post_internal - Cleanup after an internal command
5789 * @qc: ATA queued command
5794 static void ipr_ata_post_internal(struct ata_queued_cmd *qc)
5796 struct ipr_sata_port *sata_port = qc->ap->private_data;
5797 struct ipr_ioa_cfg *ioa_cfg = sata_port->ioa_cfg;
5798 struct ipr_cmnd *ipr_cmd;
5799 unsigned long flags;
5801 spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
5802 while(ioa_cfg->in_reset_reload) {
5803 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
5804 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
5805 spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
5808 list_for_each_entry(ipr_cmd, &ioa_cfg->pending_q, queue) {
5809 if (ipr_cmd->qc == qc) {
5810 ipr_device_reset(ioa_cfg, sata_port->res);
5814 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
5818 * ipr_copy_sata_tf - Copy a SATA taskfile to an IOA data structure
5819 * @regs: destination
5820 * @tf: source ATA taskfile
5825 static void ipr_copy_sata_tf(struct ipr_ioarcb_ata_regs *regs,
5826 struct ata_taskfile *tf)
5828 regs->feature = tf->feature;
5829 regs->nsect = tf->nsect;
5830 regs->lbal = tf->lbal;
5831 regs->lbam = tf->lbam;
5832 regs->lbah = tf->lbah;
5833 regs->device = tf->device;
5834 regs->command = tf->command;
5835 regs->hob_feature = tf->hob_feature;
5836 regs->hob_nsect = tf->hob_nsect;
5837 regs->hob_lbal = tf->hob_lbal;
5838 regs->hob_lbam = tf->hob_lbam;
5839 regs->hob_lbah = tf->hob_lbah;
5840 regs->ctl = tf->ctl;
5844 * ipr_sata_done - done function for SATA commands
5845 * @ipr_cmd: ipr command struct
5847 * This function is invoked by the interrupt handler for
5848 * ops generated by the SCSI mid-layer to SATA devices
5853 static void ipr_sata_done(struct ipr_cmnd *ipr_cmd)
5855 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
5856 struct ata_queued_cmd *qc = ipr_cmd->qc;
5857 struct ipr_sata_port *sata_port = qc->ap->private_data;
5858 struct ipr_resource_entry *res = sata_port->res;
5859 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
5861 if (ipr_cmd->ioa_cfg->sis64)
5862 memcpy(&sata_port->ioasa, &ipr_cmd->s.ioasa64.u.gata,
5863 sizeof(struct ipr_ioasa_gata));
5865 memcpy(&sata_port->ioasa, &ipr_cmd->s.ioasa.u.gata,
5866 sizeof(struct ipr_ioasa_gata));
5867 ipr_dump_ioasa(ioa_cfg, ipr_cmd, res);
5869 if (be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc_specific) & IPR_ATA_DEVICE_WAS_RESET)
5870 scsi_report_device_reset(ioa_cfg->host, res->bus, res->target);
5872 if (IPR_IOASC_SENSE_KEY(ioasc) > RECOVERED_ERROR)
5873 qc->err_mask |= __ac_err_mask(sata_port->ioasa.status);
5875 qc->err_mask |= ac_err_mask(sata_port->ioasa.status);
5876 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
5877 ata_qc_complete(qc);
5881 * ipr_build_ata_ioadl64 - Build an ATA scatter/gather list
5882 * @ipr_cmd: ipr command struct
5883 * @qc: ATA queued command
5886 static void ipr_build_ata_ioadl64(struct ipr_cmnd *ipr_cmd,
5887 struct ata_queued_cmd *qc)
5889 u32 ioadl_flags = 0;
5890 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
5891 struct ipr_ioadl64_desc *ioadl64 = ipr_cmd->i.ioadl64;
5892 struct ipr_ioadl64_desc *last_ioadl64 = NULL;
5893 int len = qc->nbytes;
5894 struct scatterlist *sg;
5896 dma_addr_t dma_addr = ipr_cmd->dma_addr;
5901 if (qc->dma_dir == DMA_TO_DEVICE) {
5902 ioadl_flags = IPR_IOADL_FLAGS_WRITE;
5903 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ;
5904 } else if (qc->dma_dir == DMA_FROM_DEVICE)
5905 ioadl_flags = IPR_IOADL_FLAGS_READ;
5907 ioarcb->data_transfer_length = cpu_to_be32(len);
5909 cpu_to_be32(sizeof(struct ipr_ioadl64_desc) * ipr_cmd->dma_use_sg);
5910 ioarcb->u.sis64_addr_data.data_ioadl_addr =
5911 cpu_to_be64(dma_addr + offsetof(struct ipr_cmnd, i.ata_ioadl));
5913 for_each_sg(qc->sg, sg, qc->n_elem, si) {
5914 ioadl64->flags = cpu_to_be32(ioadl_flags);
5915 ioadl64->data_len = cpu_to_be32(sg_dma_len(sg));
5916 ioadl64->address = cpu_to_be64(sg_dma_address(sg));
5918 last_ioadl64 = ioadl64;
5922 if (likely(last_ioadl64))
5923 last_ioadl64->flags |= cpu_to_be32(IPR_IOADL_FLAGS_LAST);
5927 * ipr_build_ata_ioadl - Build an ATA scatter/gather list
5928 * @ipr_cmd: ipr command struct
5929 * @qc: ATA queued command
5932 static void ipr_build_ata_ioadl(struct ipr_cmnd *ipr_cmd,
5933 struct ata_queued_cmd *qc)
5935 u32 ioadl_flags = 0;
5936 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
5937 struct ipr_ioadl_desc *ioadl = ipr_cmd->i.ioadl;
5938 struct ipr_ioadl_desc *last_ioadl = NULL;
5939 int len = qc->nbytes;
5940 struct scatterlist *sg;
5946 if (qc->dma_dir == DMA_TO_DEVICE) {
5947 ioadl_flags = IPR_IOADL_FLAGS_WRITE;
5948 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ;
5949 ioarcb->data_transfer_length = cpu_to_be32(len);
5951 cpu_to_be32(sizeof(struct ipr_ioadl_desc) * ipr_cmd->dma_use_sg);
5952 } else if (qc->dma_dir == DMA_FROM_DEVICE) {
5953 ioadl_flags = IPR_IOADL_FLAGS_READ;
5954 ioarcb->read_data_transfer_length = cpu_to_be32(len);
5955 ioarcb->read_ioadl_len =
5956 cpu_to_be32(sizeof(struct ipr_ioadl_desc) * ipr_cmd->dma_use_sg);
5959 for_each_sg(qc->sg, sg, qc->n_elem, si) {
5960 ioadl->flags_and_data_len = cpu_to_be32(ioadl_flags | sg_dma_len(sg));
5961 ioadl->address = cpu_to_be32(sg_dma_address(sg));
5967 if (likely(last_ioadl))
5968 last_ioadl->flags_and_data_len |= cpu_to_be32(IPR_IOADL_FLAGS_LAST);
5972 * ipr_qc_issue - Issue a SATA qc to a device
5973 * @qc: queued command
5978 static unsigned int ipr_qc_issue(struct ata_queued_cmd *qc)
5980 struct ata_port *ap = qc->ap;
5981 struct ipr_sata_port *sata_port = ap->private_data;
5982 struct ipr_resource_entry *res = sata_port->res;
5983 struct ipr_ioa_cfg *ioa_cfg = sata_port->ioa_cfg;
5984 struct ipr_cmnd *ipr_cmd;
5985 struct ipr_ioarcb *ioarcb;
5986 struct ipr_ioarcb_ata_regs *regs;
5988 if (unlikely(!ioa_cfg->allow_cmds || ioa_cfg->ioa_is_dead))
5989 return AC_ERR_SYSTEM;
5991 ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg);
5992 ioarcb = &ipr_cmd->ioarcb;
5994 if (ioa_cfg->sis64) {
5995 regs = &ipr_cmd->i.ata_ioadl.regs;
5996 ioarcb->add_cmd_parms_offset = cpu_to_be16(sizeof(*ioarcb));
5998 regs = &ioarcb->u.add_data.u.regs;
6000 memset(regs, 0, sizeof(*regs));
6001 ioarcb->add_cmd_parms_len = cpu_to_be16(sizeof(*regs));
6003 list_add_tail(&ipr_cmd->queue, &ioa_cfg->pending_q);
6005 ipr_cmd->done = ipr_sata_done;
6006 ipr_cmd->ioarcb.res_handle = res->res_handle;
6007 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_ATA_PASSTHRU;
6008 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_NO_LINK_DESC;
6009 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_NO_ULEN_CHK;
6010 ipr_cmd->dma_use_sg = qc->n_elem;
6013 ipr_build_ata_ioadl64(ipr_cmd, qc);
6015 ipr_build_ata_ioadl(ipr_cmd, qc);
6017 regs->flags |= IPR_ATA_FLAG_STATUS_ON_GOOD_COMPLETION;
6018 ipr_copy_sata_tf(regs, &qc->tf);
6019 memcpy(ioarcb->cmd_pkt.cdb, qc->cdb, IPR_MAX_CDB_LEN);
6020 ipr_trc_hook(ipr_cmd, IPR_TRACE_START, IPR_GET_RES_PHYS_LOC(res));
6022 switch (qc->tf.protocol) {
6023 case ATA_PROT_NODATA:
6028 regs->flags |= IPR_ATA_FLAG_XFER_TYPE_DMA;
6031 case ATAPI_PROT_PIO:
6032 case ATAPI_PROT_NODATA:
6033 regs->flags |= IPR_ATA_FLAG_PACKET_CMD;
6036 case ATAPI_PROT_DMA:
6037 regs->flags |= IPR_ATA_FLAG_PACKET_CMD;
6038 regs->flags |= IPR_ATA_FLAG_XFER_TYPE_DMA;
6043 return AC_ERR_INVALID;
6048 ipr_send_command(ipr_cmd);
6054 * ipr_qc_fill_rtf - Read result TF
6055 * @qc: ATA queued command
6060 static bool ipr_qc_fill_rtf(struct ata_queued_cmd *qc)
6062 struct ipr_sata_port *sata_port = qc->ap->private_data;
6063 struct ipr_ioasa_gata *g = &sata_port->ioasa;
6064 struct ata_taskfile *tf = &qc->result_tf;
6066 tf->feature = g->error;
6067 tf->nsect = g->nsect;
6071 tf->device = g->device;
6072 tf->command = g->status;
6073 tf->hob_nsect = g->hob_nsect;
6074 tf->hob_lbal = g->hob_lbal;
6075 tf->hob_lbam = g->hob_lbam;
6076 tf->hob_lbah = g->hob_lbah;
6077 tf->ctl = g->alt_status;
6082 static struct ata_port_operations ipr_sata_ops = {
6083 .phy_reset = ipr_ata_phy_reset,
6084 .hardreset = ipr_sata_reset,
6085 .post_internal_cmd = ipr_ata_post_internal,
6086 .qc_prep = ata_noop_qc_prep,
6087 .qc_issue = ipr_qc_issue,
6088 .qc_fill_rtf = ipr_qc_fill_rtf,
6089 .port_start = ata_sas_port_start,
6090 .port_stop = ata_sas_port_stop
6093 static struct ata_port_info sata_port_info = {
6094 .flags = ATA_FLAG_SATA | ATA_FLAG_NO_LEGACY | ATA_FLAG_SATA_RESET |
6095 ATA_FLAG_MMIO | ATA_FLAG_PIO_DMA,
6096 .pio_mask = 0x10, /* pio4 */
6098 .udma_mask = 0x7f, /* udma0-6 */
6099 .port_ops = &ipr_sata_ops
6102 #ifdef CONFIG_PPC_PSERIES
6103 static const u16 ipr_blocked_processors[] = {
6115 * ipr_invalid_adapter - Determine if this adapter is supported on this hardware
6116 * @ioa_cfg: ioa cfg struct
6118 * Adapters that use Gemstone revision < 3.1 do not work reliably on
6119 * certain pSeries hardware. This function determines if the given
6120 * adapter is in one of these confgurations or not.
6123 * 1 if adapter is not supported / 0 if adapter is supported
6125 static int ipr_invalid_adapter(struct ipr_ioa_cfg *ioa_cfg)
6129 if ((ioa_cfg->type == 0x5702) && (ioa_cfg->pdev->revision < 4)) {
6130 for (i = 0; i < ARRAY_SIZE(ipr_blocked_processors); i++){
6131 if (__is_processor(ipr_blocked_processors[i]))
6138 #define ipr_invalid_adapter(ioa_cfg) 0
6142 * ipr_ioa_bringdown_done - IOA bring down completion.
6143 * @ipr_cmd: ipr command struct
6145 * This function processes the completion of an adapter bring down.
6146 * It wakes any reset sleepers.
6151 static int ipr_ioa_bringdown_done(struct ipr_cmnd *ipr_cmd)
6153 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6156 ioa_cfg->in_reset_reload = 0;
6157 ioa_cfg->reset_retries = 0;
6158 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
6159 wake_up_all(&ioa_cfg->reset_wait_q);
6161 spin_unlock_irq(ioa_cfg->host->host_lock);
6162 scsi_unblock_requests(ioa_cfg->host);
6163 spin_lock_irq(ioa_cfg->host->host_lock);
6166 return IPR_RC_JOB_RETURN;
6170 * ipr_ioa_reset_done - IOA reset completion.
6171 * @ipr_cmd: ipr command struct
6173 * This function processes the completion of an adapter reset.
6174 * It schedules any necessary mid-layer add/removes and
6175 * wakes any reset sleepers.
6180 static int ipr_ioa_reset_done(struct ipr_cmnd *ipr_cmd)
6182 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6183 struct ipr_resource_entry *res;
6184 struct ipr_hostrcb *hostrcb, *temp;
6188 ioa_cfg->in_reset_reload = 0;
6189 ioa_cfg->allow_cmds = 1;
6190 ioa_cfg->reset_cmd = NULL;
6191 ioa_cfg->doorbell |= IPR_RUNTIME_RESET;
6193 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) {
6194 if (ioa_cfg->allow_ml_add_del && (res->add_to_ml || res->del_from_ml)) {
6199 schedule_work(&ioa_cfg->work_q);
6201 list_for_each_entry_safe(hostrcb, temp, &ioa_cfg->hostrcb_free_q, queue) {
6202 list_del(&hostrcb->queue);
6203 if (i++ < IPR_NUM_LOG_HCAMS)
6204 ipr_send_hcam(ioa_cfg, IPR_HCAM_CDB_OP_CODE_LOG_DATA, hostrcb);
6206 ipr_send_hcam(ioa_cfg, IPR_HCAM_CDB_OP_CODE_CONFIG_CHANGE, hostrcb);
6209 scsi_report_bus_reset(ioa_cfg->host, IPR_VSET_BUS);
6210 dev_info(&ioa_cfg->pdev->dev, "IOA initialized.\n");
6212 ioa_cfg->reset_retries = 0;
6213 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
6214 wake_up_all(&ioa_cfg->reset_wait_q);
6216 spin_unlock(ioa_cfg->host->host_lock);
6217 scsi_unblock_requests(ioa_cfg->host);
6218 spin_lock(ioa_cfg->host->host_lock);
6220 if (!ioa_cfg->allow_cmds)
6221 scsi_block_requests(ioa_cfg->host);
6224 return IPR_RC_JOB_RETURN;
6228 * ipr_set_sup_dev_dflt - Initialize a Set Supported Device buffer
6229 * @supported_dev: supported device struct
6230 * @vpids: vendor product id struct
6235 static void ipr_set_sup_dev_dflt(struct ipr_supported_device *supported_dev,
6236 struct ipr_std_inq_vpids *vpids)
6238 memset(supported_dev, 0, sizeof(struct ipr_supported_device));
6239 memcpy(&supported_dev->vpids, vpids, sizeof(struct ipr_std_inq_vpids));
6240 supported_dev->num_records = 1;
6241 supported_dev->data_length =
6242 cpu_to_be16(sizeof(struct ipr_supported_device));
6243 supported_dev->reserved = 0;
6247 * ipr_set_supported_devs - Send Set Supported Devices for a device
6248 * @ipr_cmd: ipr command struct
6250 * This function sends a Set Supported Devices to the adapter
6253 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
6255 static int ipr_set_supported_devs(struct ipr_cmnd *ipr_cmd)
6257 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6258 struct ipr_supported_device *supp_dev = &ioa_cfg->vpd_cbs->supp_dev;
6259 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
6260 struct ipr_resource_entry *res = ipr_cmd->u.res;
6262 ipr_cmd->job_step = ipr_ioa_reset_done;
6264 list_for_each_entry_continue(res, &ioa_cfg->used_res_q, queue) {
6265 if (!ipr_is_scsi_disk(res))
6268 ipr_cmd->u.res = res;
6269 ipr_set_sup_dev_dflt(supp_dev, &res->std_inq_data.vpids);
6271 ioarcb->res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE);
6272 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ;
6273 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_IOACMD;
6275 ioarcb->cmd_pkt.cdb[0] = IPR_SET_SUPPORTED_DEVICES;
6276 ioarcb->cmd_pkt.cdb[1] = IPR_SET_ALL_SUPPORTED_DEVICES;
6277 ioarcb->cmd_pkt.cdb[7] = (sizeof(struct ipr_supported_device) >> 8) & 0xff;
6278 ioarcb->cmd_pkt.cdb[8] = sizeof(struct ipr_supported_device) & 0xff;
6280 ipr_init_ioadl(ipr_cmd,
6281 ioa_cfg->vpd_cbs_dma +
6282 offsetof(struct ipr_misc_cbs, supp_dev),
6283 sizeof(struct ipr_supported_device),
6284 IPR_IOADL_FLAGS_WRITE_LAST);
6286 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout,
6287 IPR_SET_SUP_DEVICE_TIMEOUT);
6289 if (!ioa_cfg->sis64)
6290 ipr_cmd->job_step = ipr_set_supported_devs;
6291 return IPR_RC_JOB_RETURN;
6294 return IPR_RC_JOB_CONTINUE;
6298 * ipr_get_mode_page - Locate specified mode page
6299 * @mode_pages: mode page buffer
6300 * @page_code: page code to find
6301 * @len: minimum required length for mode page
6304 * pointer to mode page / NULL on failure
6306 static void *ipr_get_mode_page(struct ipr_mode_pages *mode_pages,
6307 u32 page_code, u32 len)
6309 struct ipr_mode_page_hdr *mode_hdr;
6313 if (!mode_pages || (mode_pages->hdr.length == 0))
6316 length = (mode_pages->hdr.length + 1) - 4 - mode_pages->hdr.block_desc_len;
6317 mode_hdr = (struct ipr_mode_page_hdr *)
6318 (mode_pages->data + mode_pages->hdr.block_desc_len);
6321 if (IPR_GET_MODE_PAGE_CODE(mode_hdr) == page_code) {
6322 if (mode_hdr->page_length >= (len - sizeof(struct ipr_mode_page_hdr)))
6326 page_length = (sizeof(struct ipr_mode_page_hdr) +
6327 mode_hdr->page_length);
6328 length -= page_length;
6329 mode_hdr = (struct ipr_mode_page_hdr *)
6330 ((unsigned long)mode_hdr + page_length);
6337 * ipr_check_term_power - Check for term power errors
6338 * @ioa_cfg: ioa config struct
6339 * @mode_pages: IOAFP mode pages buffer
6341 * Check the IOAFP's mode page 28 for term power errors
6346 static void ipr_check_term_power(struct ipr_ioa_cfg *ioa_cfg,
6347 struct ipr_mode_pages *mode_pages)
6351 struct ipr_dev_bus_entry *bus;
6352 struct ipr_mode_page28 *mode_page;
6354 mode_page = ipr_get_mode_page(mode_pages, 0x28,
6355 sizeof(struct ipr_mode_page28));
6357 entry_length = mode_page->entry_length;
6359 bus = mode_page->bus;
6361 for (i = 0; i < mode_page->num_entries; i++) {
6362 if (bus->flags & IPR_SCSI_ATTR_NO_TERM_PWR) {
6363 dev_err(&ioa_cfg->pdev->dev,
6364 "Term power is absent on scsi bus %d\n",
6368 bus = (struct ipr_dev_bus_entry *)((char *)bus + entry_length);
6373 * ipr_scsi_bus_speed_limit - Limit the SCSI speed based on SES table
6374 * @ioa_cfg: ioa config struct
6376 * Looks through the config table checking for SES devices. If
6377 * the SES device is in the SES table indicating a maximum SCSI
6378 * bus speed, the speed is limited for the bus.
6383 static void ipr_scsi_bus_speed_limit(struct ipr_ioa_cfg *ioa_cfg)
6388 for (i = 0; i < IPR_MAX_NUM_BUSES; i++) {
6389 max_xfer_rate = ipr_get_max_scsi_speed(ioa_cfg, i,
6390 ioa_cfg->bus_attr[i].bus_width);
6392 if (max_xfer_rate < ioa_cfg->bus_attr[i].max_xfer_rate)
6393 ioa_cfg->bus_attr[i].max_xfer_rate = max_xfer_rate;
6398 * ipr_modify_ioafp_mode_page_28 - Modify IOAFP Mode Page 28
6399 * @ioa_cfg: ioa config struct
6400 * @mode_pages: mode page 28 buffer
6402 * Updates mode page 28 based on driver configuration
6407 static void ipr_modify_ioafp_mode_page_28(struct ipr_ioa_cfg *ioa_cfg,
6408 struct ipr_mode_pages *mode_pages)
6410 int i, entry_length;
6411 struct ipr_dev_bus_entry *bus;
6412 struct ipr_bus_attributes *bus_attr;
6413 struct ipr_mode_page28 *mode_page;
6415 mode_page = ipr_get_mode_page(mode_pages, 0x28,
6416 sizeof(struct ipr_mode_page28));
6418 entry_length = mode_page->entry_length;
6420 /* Loop for each device bus entry */
6421 for (i = 0, bus = mode_page->bus;
6422 i < mode_page->num_entries;
6423 i++, bus = (struct ipr_dev_bus_entry *)((u8 *)bus + entry_length)) {
6424 if (bus->res_addr.bus > IPR_MAX_NUM_BUSES) {
6425 dev_err(&ioa_cfg->pdev->dev,
6426 "Invalid resource address reported: 0x%08X\n",
6427 IPR_GET_PHYS_LOC(bus->res_addr));
6431 bus_attr = &ioa_cfg->bus_attr[i];
6432 bus->extended_reset_delay = IPR_EXTENDED_RESET_DELAY;
6433 bus->bus_width = bus_attr->bus_width;
6434 bus->max_xfer_rate = cpu_to_be32(bus_attr->max_xfer_rate);
6435 bus->flags &= ~IPR_SCSI_ATTR_QAS_MASK;
6436 if (bus_attr->qas_enabled)
6437 bus->flags |= IPR_SCSI_ATTR_ENABLE_QAS;
6439 bus->flags |= IPR_SCSI_ATTR_DISABLE_QAS;
6444 * ipr_build_mode_select - Build a mode select command
6445 * @ipr_cmd: ipr command struct
6446 * @res_handle: resource handle to send command to
6447 * @parm: Byte 2 of Mode Sense command
6448 * @dma_addr: DMA buffer address
6449 * @xfer_len: data transfer length
6454 static void ipr_build_mode_select(struct ipr_cmnd *ipr_cmd,
6455 __be32 res_handle, u8 parm,
6456 dma_addr_t dma_addr, u8 xfer_len)
6458 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
6460 ioarcb->res_handle = res_handle;
6461 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_SCSICDB;
6462 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ;
6463 ioarcb->cmd_pkt.cdb[0] = MODE_SELECT;
6464 ioarcb->cmd_pkt.cdb[1] = parm;
6465 ioarcb->cmd_pkt.cdb[4] = xfer_len;
6467 ipr_init_ioadl(ipr_cmd, dma_addr, xfer_len, IPR_IOADL_FLAGS_WRITE_LAST);
6471 * ipr_ioafp_mode_select_page28 - Issue Mode Select Page 28 to IOA
6472 * @ipr_cmd: ipr command struct
6474 * This function sets up the SCSI bus attributes and sends
6475 * a Mode Select for Page 28 to activate them.
6480 static int ipr_ioafp_mode_select_page28(struct ipr_cmnd *ipr_cmd)
6482 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6483 struct ipr_mode_pages *mode_pages = &ioa_cfg->vpd_cbs->mode_pages;
6487 ipr_scsi_bus_speed_limit(ioa_cfg);
6488 ipr_check_term_power(ioa_cfg, mode_pages);
6489 ipr_modify_ioafp_mode_page_28(ioa_cfg, mode_pages);
6490 length = mode_pages->hdr.length + 1;
6491 mode_pages->hdr.length = 0;
6493 ipr_build_mode_select(ipr_cmd, cpu_to_be32(IPR_IOA_RES_HANDLE), 0x11,
6494 ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, mode_pages),
6497 ipr_cmd->job_step = ipr_set_supported_devs;
6498 ipr_cmd->u.res = list_entry(ioa_cfg->used_res_q.next,
6499 struct ipr_resource_entry, queue);
6500 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT);
6503 return IPR_RC_JOB_RETURN;
6507 * ipr_build_mode_sense - Builds a mode sense command
6508 * @ipr_cmd: ipr command struct
6509 * @res: resource entry struct
6510 * @parm: Byte 2 of mode sense command
6511 * @dma_addr: DMA address of mode sense buffer
6512 * @xfer_len: Size of DMA buffer
6517 static void ipr_build_mode_sense(struct ipr_cmnd *ipr_cmd,
6519 u8 parm, dma_addr_t dma_addr, u8 xfer_len)
6521 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
6523 ioarcb->res_handle = res_handle;
6524 ioarcb->cmd_pkt.cdb[0] = MODE_SENSE;
6525 ioarcb->cmd_pkt.cdb[2] = parm;
6526 ioarcb->cmd_pkt.cdb[4] = xfer_len;
6527 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_SCSICDB;
6529 ipr_init_ioadl(ipr_cmd, dma_addr, xfer_len, IPR_IOADL_FLAGS_READ_LAST);
6533 * ipr_reset_cmd_failed - Handle failure of IOA reset command
6534 * @ipr_cmd: ipr command struct
6536 * This function handles the failure of an IOA bringup command.
6541 static int ipr_reset_cmd_failed(struct ipr_cmnd *ipr_cmd)
6543 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6544 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
6546 dev_err(&ioa_cfg->pdev->dev,
6547 "0x%02X failed with IOASC: 0x%08X\n",
6548 ipr_cmd->ioarcb.cmd_pkt.cdb[0], ioasc);
6550 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
6551 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
6552 return IPR_RC_JOB_RETURN;
6556 * ipr_reset_mode_sense_failed - Handle failure of IOAFP mode sense
6557 * @ipr_cmd: ipr command struct
6559 * This function handles the failure of a Mode Sense to the IOAFP.
6560 * Some adapters do not handle all mode pages.
6563 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
6565 static int ipr_reset_mode_sense_failed(struct ipr_cmnd *ipr_cmd)
6567 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6568 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
6570 if (ioasc == IPR_IOASC_IR_INVALID_REQ_TYPE_OR_PKT) {
6571 ipr_cmd->job_step = ipr_set_supported_devs;
6572 ipr_cmd->u.res = list_entry(ioa_cfg->used_res_q.next,
6573 struct ipr_resource_entry, queue);
6574 return IPR_RC_JOB_CONTINUE;
6577 return ipr_reset_cmd_failed(ipr_cmd);
6581 * ipr_ioafp_mode_sense_page28 - Issue Mode Sense Page 28 to IOA
6582 * @ipr_cmd: ipr command struct
6584 * This function send a Page 28 mode sense to the IOA to
6585 * retrieve SCSI bus attributes.
6590 static int ipr_ioafp_mode_sense_page28(struct ipr_cmnd *ipr_cmd)
6592 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6595 ipr_build_mode_sense(ipr_cmd, cpu_to_be32(IPR_IOA_RES_HANDLE),
6596 0x28, ioa_cfg->vpd_cbs_dma +
6597 offsetof(struct ipr_misc_cbs, mode_pages),
6598 sizeof(struct ipr_mode_pages));
6600 ipr_cmd->job_step = ipr_ioafp_mode_select_page28;
6601 ipr_cmd->job_step_failed = ipr_reset_mode_sense_failed;
6603 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT);
6606 return IPR_RC_JOB_RETURN;
6610 * ipr_ioafp_mode_select_page24 - Issue Mode Select to IOA
6611 * @ipr_cmd: ipr command struct
6613 * This function enables dual IOA RAID support if possible.
6618 static int ipr_ioafp_mode_select_page24(struct ipr_cmnd *ipr_cmd)
6620 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6621 struct ipr_mode_pages *mode_pages = &ioa_cfg->vpd_cbs->mode_pages;
6622 struct ipr_mode_page24 *mode_page;
6626 mode_page = ipr_get_mode_page(mode_pages, 0x24,
6627 sizeof(struct ipr_mode_page24));
6630 mode_page->flags |= IPR_ENABLE_DUAL_IOA_AF;
6632 length = mode_pages->hdr.length + 1;
6633 mode_pages->hdr.length = 0;
6635 ipr_build_mode_select(ipr_cmd, cpu_to_be32(IPR_IOA_RES_HANDLE), 0x11,
6636 ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, mode_pages),
6639 ipr_cmd->job_step = ipr_ioafp_mode_sense_page28;
6640 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT);
6643 return IPR_RC_JOB_RETURN;
6647 * ipr_reset_mode_sense_page24_failed - Handle failure of IOAFP mode sense
6648 * @ipr_cmd: ipr command struct
6650 * This function handles the failure of a Mode Sense to the IOAFP.
6651 * Some adapters do not handle all mode pages.
6654 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
6656 static int ipr_reset_mode_sense_page24_failed(struct ipr_cmnd *ipr_cmd)
6658 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
6660 if (ioasc == IPR_IOASC_IR_INVALID_REQ_TYPE_OR_PKT) {
6661 ipr_cmd->job_step = ipr_ioafp_mode_sense_page28;
6662 return IPR_RC_JOB_CONTINUE;
6665 return ipr_reset_cmd_failed(ipr_cmd);
6669 * ipr_ioafp_mode_sense_page24 - Issue Page 24 Mode Sense to IOA
6670 * @ipr_cmd: ipr command struct
6672 * This function send a mode sense to the IOA to retrieve
6673 * the IOA Advanced Function Control mode page.
6678 static int ipr_ioafp_mode_sense_page24(struct ipr_cmnd *ipr_cmd)
6680 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6683 ipr_build_mode_sense(ipr_cmd, cpu_to_be32(IPR_IOA_RES_HANDLE),
6684 0x24, ioa_cfg->vpd_cbs_dma +
6685 offsetof(struct ipr_misc_cbs, mode_pages),
6686 sizeof(struct ipr_mode_pages));
6688 ipr_cmd->job_step = ipr_ioafp_mode_select_page24;
6689 ipr_cmd->job_step_failed = ipr_reset_mode_sense_page24_failed;
6691 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT);
6694 return IPR_RC_JOB_RETURN;
6698 * ipr_init_res_table - Initialize the resource table
6699 * @ipr_cmd: ipr command struct
6701 * This function looks through the existing resource table, comparing
6702 * it with the config table. This function will take care of old/new
6703 * devices and schedule adding/removing them from the mid-layer
6707 * IPR_RC_JOB_CONTINUE
6709 static int ipr_init_res_table(struct ipr_cmnd *ipr_cmd)
6711 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6712 struct ipr_resource_entry *res, *temp;
6713 struct ipr_config_table_entry_wrapper cfgtew;
6714 int entries, found, flag, i;
6719 flag = ioa_cfg->u.cfg_table64->hdr64.flags;
6721 flag = ioa_cfg->u.cfg_table->hdr.flags;
6723 if (flag & IPR_UCODE_DOWNLOAD_REQ)
6724 dev_err(&ioa_cfg->pdev->dev, "Microcode download required\n");
6726 list_for_each_entry_safe(res, temp, &ioa_cfg->used_res_q, queue)
6727 list_move_tail(&res->queue, &old_res);
6730 entries = be16_to_cpu(ioa_cfg->u.cfg_table64->hdr64.num_entries);
6732 entries = ioa_cfg->u.cfg_table->hdr.num_entries;
6734 for (i = 0; i < entries; i++) {
6736 cfgtew.u.cfgte64 = &ioa_cfg->u.cfg_table64->dev[i];
6738 cfgtew.u.cfgte = &ioa_cfg->u.cfg_table->dev[i];
6741 list_for_each_entry_safe(res, temp, &old_res, queue) {
6742 if (ipr_is_same_device(res, &cfgtew)) {
6743 list_move_tail(&res->queue, &ioa_cfg->used_res_q);
6750 if (list_empty(&ioa_cfg->free_res_q)) {
6751 dev_err(&ioa_cfg->pdev->dev, "Too many devices attached\n");
6756 res = list_entry(ioa_cfg->free_res_q.next,
6757 struct ipr_resource_entry, queue);
6758 list_move_tail(&res->queue, &ioa_cfg->used_res_q);
6759 ipr_init_res_entry(res, &cfgtew);
6764 ipr_update_res_entry(res, &cfgtew);
6767 list_for_each_entry_safe(res, temp, &old_res, queue) {
6769 res->del_from_ml = 1;
6770 res->res_handle = IPR_INVALID_RES_HANDLE;
6771 list_move_tail(&res->queue, &ioa_cfg->used_res_q);
6775 list_for_each_entry_safe(res, temp, &old_res, queue) {
6776 ipr_clear_res_target(res);
6777 list_move_tail(&res->queue, &ioa_cfg->free_res_q);
6780 if (ioa_cfg->dual_raid && ipr_dual_ioa_raid)
6781 ipr_cmd->job_step = ipr_ioafp_mode_sense_page24;
6783 ipr_cmd->job_step = ipr_ioafp_mode_sense_page28;
6786 return IPR_RC_JOB_CONTINUE;
6790 * ipr_ioafp_query_ioa_cfg - Send a Query IOA Config to the adapter.
6791 * @ipr_cmd: ipr command struct
6793 * This function sends a Query IOA Configuration command
6794 * to the adapter to retrieve the IOA configuration table.
6799 static int ipr_ioafp_query_ioa_cfg(struct ipr_cmnd *ipr_cmd)
6801 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6802 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
6803 struct ipr_inquiry_page3 *ucode_vpd = &ioa_cfg->vpd_cbs->page3_data;
6804 struct ipr_inquiry_cap *cap = &ioa_cfg->vpd_cbs->cap;
6807 if (cap->cap & IPR_CAP_DUAL_IOA_RAID)
6808 ioa_cfg->dual_raid = 1;
6809 dev_info(&ioa_cfg->pdev->dev, "Adapter firmware version: %02X%02X%02X%02X\n",
6810 ucode_vpd->major_release, ucode_vpd->card_type,
6811 ucode_vpd->minor_release[0], ucode_vpd->minor_release[1]);
6812 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_IOACMD;
6813 ioarcb->res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE);
6815 ioarcb->cmd_pkt.cdb[0] = IPR_QUERY_IOA_CONFIG;
6816 ioarcb->cmd_pkt.cdb[6] = (ioa_cfg->cfg_table_size >> 16) & 0xff;
6817 ioarcb->cmd_pkt.cdb[7] = (ioa_cfg->cfg_table_size >> 8) & 0xff;
6818 ioarcb->cmd_pkt.cdb[8] = ioa_cfg->cfg_table_size & 0xff;
6820 ipr_init_ioadl(ipr_cmd, ioa_cfg->cfg_table_dma, ioa_cfg->cfg_table_size,
6821 IPR_IOADL_FLAGS_READ_LAST);
6823 ipr_cmd->job_step = ipr_init_res_table;
6825 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT);
6828 return IPR_RC_JOB_RETURN;
6832 * ipr_ioafp_inquiry - Send an Inquiry to the adapter.
6833 * @ipr_cmd: ipr command struct
6835 * This utility function sends an inquiry to the adapter.
6840 static void ipr_ioafp_inquiry(struct ipr_cmnd *ipr_cmd, u8 flags, u8 page,
6841 dma_addr_t dma_addr, u8 xfer_len)
6843 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
6846 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_SCSICDB;
6847 ioarcb->res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE);
6849 ioarcb->cmd_pkt.cdb[0] = INQUIRY;
6850 ioarcb->cmd_pkt.cdb[1] = flags;
6851 ioarcb->cmd_pkt.cdb[2] = page;
6852 ioarcb->cmd_pkt.cdb[4] = xfer_len;
6854 ipr_init_ioadl(ipr_cmd, dma_addr, xfer_len, IPR_IOADL_FLAGS_READ_LAST);
6856 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT);
6861 * ipr_inquiry_page_supported - Is the given inquiry page supported
6862 * @page0: inquiry page 0 buffer
6865 * This function determines if the specified inquiry page is supported.
6868 * 1 if page is supported / 0 if not
6870 static int ipr_inquiry_page_supported(struct ipr_inquiry_page0 *page0, u8 page)
6874 for (i = 0; i < min_t(u8, page0->len, IPR_INQUIRY_PAGE0_ENTRIES); i++)
6875 if (page0->page[i] == page)
6882 * ipr_ioafp_cap_inquiry - Send a Page 0xD0 Inquiry to the adapter.
6883 * @ipr_cmd: ipr command struct
6885 * This function sends a Page 0xD0 inquiry to the adapter
6886 * to retrieve adapter capabilities.
6889 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
6891 static int ipr_ioafp_cap_inquiry(struct ipr_cmnd *ipr_cmd)
6893 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6894 struct ipr_inquiry_page0 *page0 = &ioa_cfg->vpd_cbs->page0_data;
6895 struct ipr_inquiry_cap *cap = &ioa_cfg->vpd_cbs->cap;
6898 ipr_cmd->job_step = ipr_ioafp_query_ioa_cfg;
6899 memset(cap, 0, sizeof(*cap));
6901 if (ipr_inquiry_page_supported(page0, 0xD0)) {
6902 ipr_ioafp_inquiry(ipr_cmd, 1, 0xD0,
6903 ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, cap),
6904 sizeof(struct ipr_inquiry_cap));
6905 return IPR_RC_JOB_RETURN;
6909 return IPR_RC_JOB_CONTINUE;
6913 * ipr_ioafp_page3_inquiry - Send a Page 3 Inquiry to the adapter.
6914 * @ipr_cmd: ipr command struct
6916 * This function sends a Page 3 inquiry to the adapter
6917 * to retrieve software VPD information.
6920 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
6922 static int ipr_ioafp_page3_inquiry(struct ipr_cmnd *ipr_cmd)
6924 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6928 ipr_cmd->job_step = ipr_ioafp_cap_inquiry;
6930 ipr_ioafp_inquiry(ipr_cmd, 1, 3,
6931 ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, page3_data),
6932 sizeof(struct ipr_inquiry_page3));
6935 return IPR_RC_JOB_RETURN;
6939 * ipr_ioafp_page0_inquiry - Send a Page 0 Inquiry to the adapter.
6940 * @ipr_cmd: ipr command struct
6942 * This function sends a Page 0 inquiry to the adapter
6943 * to retrieve supported inquiry pages.
6946 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
6948 static int ipr_ioafp_page0_inquiry(struct ipr_cmnd *ipr_cmd)
6950 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6955 /* Grab the type out of the VPD and store it away */
6956 memcpy(type, ioa_cfg->vpd_cbs->ioa_vpd.std_inq_data.vpids.product_id, 4);
6958 ioa_cfg->type = simple_strtoul((char *)type, NULL, 16);
6960 ipr_cmd->job_step = ipr_ioafp_page3_inquiry;
6962 ipr_ioafp_inquiry(ipr_cmd, 1, 0,
6963 ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, page0_data),
6964 sizeof(struct ipr_inquiry_page0));
6967 return IPR_RC_JOB_RETURN;
6971 * ipr_ioafp_std_inquiry - Send a Standard Inquiry to the adapter.
6972 * @ipr_cmd: ipr command struct
6974 * This function sends a standard inquiry to the adapter.
6979 static int ipr_ioafp_std_inquiry(struct ipr_cmnd *ipr_cmd)
6981 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6984 ipr_cmd->job_step = ipr_ioafp_page0_inquiry;
6986 ipr_ioafp_inquiry(ipr_cmd, 0, 0,
6987 ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, ioa_vpd),
6988 sizeof(struct ipr_ioa_vpd));
6991 return IPR_RC_JOB_RETURN;
6995 * ipr_ioafp_identify_hrrq - Send Identify Host RRQ.
6996 * @ipr_cmd: ipr command struct
6998 * This function send an Identify Host Request Response Queue
6999 * command to establish the HRRQ with the adapter.
7004 static int ipr_ioafp_identify_hrrq(struct ipr_cmnd *ipr_cmd)
7006 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7007 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
7010 dev_info(&ioa_cfg->pdev->dev, "Starting IOA initialization sequence.\n");
7012 ioarcb->cmd_pkt.cdb[0] = IPR_ID_HOST_RR_Q;
7013 ioarcb->res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE);
7015 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_IOACMD;
7017 ioarcb->cmd_pkt.cdb[1] = 0x1;
7018 ioarcb->cmd_pkt.cdb[2] =
7019 ((u64) ioa_cfg->host_rrq_dma >> 24) & 0xff;
7020 ioarcb->cmd_pkt.cdb[3] =
7021 ((u64) ioa_cfg->host_rrq_dma >> 16) & 0xff;
7022 ioarcb->cmd_pkt.cdb[4] =
7023 ((u64) ioa_cfg->host_rrq_dma >> 8) & 0xff;
7024 ioarcb->cmd_pkt.cdb[5] =
7025 ((u64) ioa_cfg->host_rrq_dma) & 0xff;
7026 ioarcb->cmd_pkt.cdb[7] =
7027 ((sizeof(u32) * IPR_NUM_CMD_BLKS) >> 8) & 0xff;
7028 ioarcb->cmd_pkt.cdb[8] =
7029 (sizeof(u32) * IPR_NUM_CMD_BLKS) & 0xff;
7031 if (ioa_cfg->sis64) {
7032 ioarcb->cmd_pkt.cdb[10] =
7033 ((u64) ioa_cfg->host_rrq_dma >> 56) & 0xff;
7034 ioarcb->cmd_pkt.cdb[11] =
7035 ((u64) ioa_cfg->host_rrq_dma >> 48) & 0xff;
7036 ioarcb->cmd_pkt.cdb[12] =
7037 ((u64) ioa_cfg->host_rrq_dma >> 40) & 0xff;
7038 ioarcb->cmd_pkt.cdb[13] =
7039 ((u64) ioa_cfg->host_rrq_dma >> 32) & 0xff;
7042 ipr_cmd->job_step = ipr_ioafp_std_inquiry;
7044 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT);
7047 return IPR_RC_JOB_RETURN;
7051 * ipr_reset_timer_done - Adapter reset timer function
7052 * @ipr_cmd: ipr command struct
7054 * Description: This function is used in adapter reset processing
7055 * for timing events. If the reset_cmd pointer in the IOA
7056 * config struct is not this adapter's we are doing nested
7057 * resets and fail_all_ops will take care of freeing the
7063 static void ipr_reset_timer_done(struct ipr_cmnd *ipr_cmd)
7065 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7066 unsigned long lock_flags = 0;
7068 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
7070 if (ioa_cfg->reset_cmd == ipr_cmd) {
7071 list_del(&ipr_cmd->queue);
7072 ipr_cmd->done(ipr_cmd);
7075 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
7079 * ipr_reset_start_timer - Start a timer for adapter reset job
7080 * @ipr_cmd: ipr command struct
7081 * @timeout: timeout value
7083 * Description: This function is used in adapter reset processing
7084 * for timing events. If the reset_cmd pointer in the IOA
7085 * config struct is not this adapter's we are doing nested
7086 * resets and fail_all_ops will take care of freeing the
7092 static void ipr_reset_start_timer(struct ipr_cmnd *ipr_cmd,
7093 unsigned long timeout)
7095 list_add_tail(&ipr_cmd->queue, &ipr_cmd->ioa_cfg->pending_q);
7096 ipr_cmd->done = ipr_reset_ioa_job;
7098 ipr_cmd->timer.data = (unsigned long) ipr_cmd;
7099 ipr_cmd->timer.expires = jiffies + timeout;
7100 ipr_cmd->timer.function = (void (*)(unsigned long))ipr_reset_timer_done;
7101 add_timer(&ipr_cmd->timer);
7105 * ipr_init_ioa_mem - Initialize ioa_cfg control block
7106 * @ioa_cfg: ioa cfg struct
7111 static void ipr_init_ioa_mem(struct ipr_ioa_cfg *ioa_cfg)
7113 memset(ioa_cfg->host_rrq, 0, sizeof(u32) * IPR_NUM_CMD_BLKS);
7115 /* Initialize Host RRQ pointers */
7116 ioa_cfg->hrrq_start = ioa_cfg->host_rrq;
7117 ioa_cfg->hrrq_end = &ioa_cfg->host_rrq[IPR_NUM_CMD_BLKS - 1];
7118 ioa_cfg->hrrq_curr = ioa_cfg->hrrq_start;
7119 ioa_cfg->toggle_bit = 1;
7121 /* Zero out config table */
7122 memset(ioa_cfg->u.cfg_table, 0, ioa_cfg->cfg_table_size);
7126 * ipr_reset_next_stage - Process IPL stage change based on feedback register.
7127 * @ipr_cmd: ipr command struct
7130 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
7132 static int ipr_reset_next_stage(struct ipr_cmnd *ipr_cmd)
7134 unsigned long stage, stage_time;
7136 volatile u32 int_reg;
7137 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7140 feedback = readl(ioa_cfg->regs.init_feedback_reg);
7141 stage = feedback & IPR_IPL_INIT_STAGE_MASK;
7142 stage_time = feedback & IPR_IPL_INIT_STAGE_TIME_MASK;
7144 ipr_dbg("IPL stage = 0x%lx, IPL stage time = %ld\n", stage, stage_time);
7146 /* sanity check the stage_time value */
7147 if (stage_time == 0)
7148 stage_time = IPR_IPL_INIT_DEFAULT_STAGE_TIME;
7149 else if (stage_time < IPR_IPL_INIT_MIN_STAGE_TIME)
7150 stage_time = IPR_IPL_INIT_MIN_STAGE_TIME;
7151 else if (stage_time > IPR_LONG_OPERATIONAL_TIMEOUT)
7152 stage_time = IPR_LONG_OPERATIONAL_TIMEOUT;
7154 if (stage == IPR_IPL_INIT_STAGE_UNKNOWN) {
7155 writel(IPR_PCII_IPL_STAGE_CHANGE, ioa_cfg->regs.set_interrupt_mask_reg);
7156 int_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg);
7157 stage_time = ioa_cfg->transop_timeout;
7158 ipr_cmd->job_step = ipr_ioafp_identify_hrrq;
7159 } else if (stage == IPR_IPL_INIT_STAGE_TRANSOP) {
7160 ipr_cmd->job_step = ipr_ioafp_identify_hrrq;
7161 maskval = IPR_PCII_IPL_STAGE_CHANGE;
7162 maskval = (maskval << 32) | IPR_PCII_IOA_TRANS_TO_OPER;
7163 writeq(maskval, ioa_cfg->regs.set_interrupt_mask_reg);
7164 int_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg);
7165 return IPR_RC_JOB_CONTINUE;
7168 ipr_cmd->timer.data = (unsigned long) ipr_cmd;
7169 ipr_cmd->timer.expires = jiffies + stage_time * HZ;
7170 ipr_cmd->timer.function = (void (*)(unsigned long))ipr_oper_timeout;
7171 ipr_cmd->done = ipr_reset_ioa_job;
7172 add_timer(&ipr_cmd->timer);
7173 list_add_tail(&ipr_cmd->queue, &ioa_cfg->pending_q);
7175 return IPR_RC_JOB_RETURN;
7179 * ipr_reset_enable_ioa - Enable the IOA following a reset.
7180 * @ipr_cmd: ipr command struct
7182 * This function reinitializes some control blocks and
7183 * enables destructive diagnostics on the adapter.
7188 static int ipr_reset_enable_ioa(struct ipr_cmnd *ipr_cmd)
7190 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7191 volatile u32 int_reg;
7192 volatile u64 maskval;
7195 ipr_cmd->job_step = ipr_ioafp_identify_hrrq;
7196 ipr_init_ioa_mem(ioa_cfg);
7198 ioa_cfg->allow_interrupts = 1;
7199 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg32);
7201 if (int_reg & IPR_PCII_IOA_TRANS_TO_OPER) {
7202 writel((IPR_PCII_ERROR_INTERRUPTS | IPR_PCII_HRRQ_UPDATED),
7203 ioa_cfg->regs.clr_interrupt_mask_reg32);
7204 int_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg);
7205 return IPR_RC_JOB_CONTINUE;
7208 /* Enable destructive diagnostics on IOA */
7209 writel(ioa_cfg->doorbell, ioa_cfg->regs.set_uproc_interrupt_reg32);
7211 if (ioa_cfg->sis64) {
7212 maskval = IPR_PCII_IPL_STAGE_CHANGE;
7213 maskval = (maskval << 32) | IPR_PCII_OPER_INTERRUPTS;
7214 writeq(maskval, ioa_cfg->regs.clr_interrupt_mask_reg);
7216 writel(IPR_PCII_OPER_INTERRUPTS, ioa_cfg->regs.clr_interrupt_mask_reg32);
7218 int_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg);
7220 dev_info(&ioa_cfg->pdev->dev, "Initializing IOA.\n");
7222 if (ioa_cfg->sis64) {
7223 ipr_cmd->job_step = ipr_reset_next_stage;
7224 return IPR_RC_JOB_CONTINUE;
7227 ipr_cmd->timer.data = (unsigned long) ipr_cmd;
7228 ipr_cmd->timer.expires = jiffies + (ioa_cfg->transop_timeout * HZ);
7229 ipr_cmd->timer.function = (void (*)(unsigned long))ipr_oper_timeout;
7230 ipr_cmd->done = ipr_reset_ioa_job;
7231 add_timer(&ipr_cmd->timer);
7232 list_add_tail(&ipr_cmd->queue, &ioa_cfg->pending_q);
7235 return IPR_RC_JOB_RETURN;
7239 * ipr_reset_wait_for_dump - Wait for a dump to timeout.
7240 * @ipr_cmd: ipr command struct
7242 * This function is invoked when an adapter dump has run out
7243 * of processing time.
7246 * IPR_RC_JOB_CONTINUE
7248 static int ipr_reset_wait_for_dump(struct ipr_cmnd *ipr_cmd)
7250 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7252 if (ioa_cfg->sdt_state == GET_DUMP)
7253 ioa_cfg->sdt_state = ABORT_DUMP;
7255 ipr_cmd->job_step = ipr_reset_alert;
7257 return IPR_RC_JOB_CONTINUE;
7261 * ipr_unit_check_no_data - Log a unit check/no data error log
7262 * @ioa_cfg: ioa config struct
7264 * Logs an error indicating the adapter unit checked, but for some
7265 * reason, we were unable to fetch the unit check buffer.
7270 static void ipr_unit_check_no_data(struct ipr_ioa_cfg *ioa_cfg)
7272 ioa_cfg->errors_logged++;
7273 dev_err(&ioa_cfg->pdev->dev, "IOA unit check with no data\n");
7277 * ipr_get_unit_check_buffer - Get the unit check buffer from the IOA
7278 * @ioa_cfg: ioa config struct
7280 * Fetches the unit check buffer from the adapter by clocking the data
7281 * through the mailbox register.
7286 static void ipr_get_unit_check_buffer(struct ipr_ioa_cfg *ioa_cfg)
7288 unsigned long mailbox;
7289 struct ipr_hostrcb *hostrcb;
7290 struct ipr_uc_sdt sdt;
7294 mailbox = readl(ioa_cfg->ioa_mailbox);
7296 if (!ioa_cfg->sis64 && !ipr_sdt_is_fmt2(mailbox)) {
7297 ipr_unit_check_no_data(ioa_cfg);
7301 memset(&sdt, 0, sizeof(struct ipr_uc_sdt));
7302 rc = ipr_get_ldump_data_section(ioa_cfg, mailbox, (__be32 *) &sdt,
7303 (sizeof(struct ipr_uc_sdt)) / sizeof(__be32));
7305 if (rc || !(sdt.entry[0].flags & IPR_SDT_VALID_ENTRY) ||
7306 ((be32_to_cpu(sdt.hdr.state) != IPR_FMT3_SDT_READY_TO_USE) &&
7307 (be32_to_cpu(sdt.hdr.state) != IPR_FMT2_SDT_READY_TO_USE))) {
7308 ipr_unit_check_no_data(ioa_cfg);
7312 /* Find length of the first sdt entry (UC buffer) */
7313 if (be32_to_cpu(sdt.hdr.state) == IPR_FMT3_SDT_READY_TO_USE)
7314 length = be32_to_cpu(sdt.entry[0].end_token);
7316 length = (be32_to_cpu(sdt.entry[0].end_token) -
7317 be32_to_cpu(sdt.entry[0].start_token)) &
7318 IPR_FMT2_MBX_ADDR_MASK;
7320 hostrcb = list_entry(ioa_cfg->hostrcb_free_q.next,
7321 struct ipr_hostrcb, queue);
7322 list_del(&hostrcb->queue);
7323 memset(&hostrcb->hcam, 0, sizeof(hostrcb->hcam));
7325 rc = ipr_get_ldump_data_section(ioa_cfg,
7326 be32_to_cpu(sdt.entry[0].start_token),
7327 (__be32 *)&hostrcb->hcam,
7328 min(length, (int)sizeof(hostrcb->hcam)) / sizeof(__be32));
7331 ipr_handle_log_data(ioa_cfg, hostrcb);
7332 ioasc = be32_to_cpu(hostrcb->hcam.u.error.fd_ioasc);
7333 if (ioasc == IPR_IOASC_NR_IOA_RESET_REQUIRED &&
7334 ioa_cfg->sdt_state == GET_DUMP)
7335 ioa_cfg->sdt_state = WAIT_FOR_DUMP;
7337 ipr_unit_check_no_data(ioa_cfg);
7339 list_add_tail(&hostrcb->queue, &ioa_cfg->hostrcb_free_q);
7343 * ipr_reset_restore_cfg_space - Restore PCI config space.
7344 * @ipr_cmd: ipr command struct
7346 * Description: This function restores the saved PCI config space of
7347 * the adapter, fails all outstanding ops back to the callers, and
7348 * fetches the dump/unit check if applicable to this reset.
7351 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
7353 static int ipr_reset_restore_cfg_space(struct ipr_cmnd *ipr_cmd)
7355 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7359 ioa_cfg->pdev->state_saved = true;
7360 rc = pci_restore_state(ioa_cfg->pdev);
7362 if (rc != PCIBIOS_SUCCESSFUL) {
7363 ipr_cmd->s.ioasa.hdr.ioasc = cpu_to_be32(IPR_IOASC_PCI_ACCESS_ERROR);
7364 return IPR_RC_JOB_CONTINUE;
7367 if (ipr_set_pcix_cmd_reg(ioa_cfg)) {
7368 ipr_cmd->s.ioasa.hdr.ioasc = cpu_to_be32(IPR_IOASC_PCI_ACCESS_ERROR);
7369 return IPR_RC_JOB_CONTINUE;
7372 ipr_fail_all_ops(ioa_cfg);
7374 if (ioa_cfg->ioa_unit_checked) {
7375 ioa_cfg->ioa_unit_checked = 0;
7376 ipr_get_unit_check_buffer(ioa_cfg);
7377 ipr_cmd->job_step = ipr_reset_alert;
7378 ipr_reset_start_timer(ipr_cmd, 0);
7379 return IPR_RC_JOB_RETURN;
7382 if (ioa_cfg->in_ioa_bringdown) {
7383 ipr_cmd->job_step = ipr_ioa_bringdown_done;
7385 ipr_cmd->job_step = ipr_reset_enable_ioa;
7387 if (GET_DUMP == ioa_cfg->sdt_state) {
7388 ipr_reset_start_timer(ipr_cmd, IPR_DUMP_TIMEOUT);
7389 ipr_cmd->job_step = ipr_reset_wait_for_dump;
7390 schedule_work(&ioa_cfg->work_q);
7391 return IPR_RC_JOB_RETURN;
7396 return IPR_RC_JOB_CONTINUE;
7400 * ipr_reset_bist_done - BIST has completed on the adapter.
7401 * @ipr_cmd: ipr command struct
7403 * Description: Unblock config space and resume the reset process.
7406 * IPR_RC_JOB_CONTINUE
7408 static int ipr_reset_bist_done(struct ipr_cmnd *ipr_cmd)
7411 pci_unblock_user_cfg_access(ipr_cmd->ioa_cfg->pdev);
7412 ipr_cmd->job_step = ipr_reset_restore_cfg_space;
7414 return IPR_RC_JOB_CONTINUE;
7418 * ipr_reset_start_bist - Run BIST on the adapter.
7419 * @ipr_cmd: ipr command struct
7421 * Description: This function runs BIST on the adapter, then delays 2 seconds.
7424 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
7426 static int ipr_reset_start_bist(struct ipr_cmnd *ipr_cmd)
7428 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7432 pci_block_user_cfg_access(ioa_cfg->pdev);
7433 rc = pci_write_config_byte(ioa_cfg->pdev, PCI_BIST, PCI_BIST_START);
7435 if (rc != PCIBIOS_SUCCESSFUL) {
7436 pci_unblock_user_cfg_access(ipr_cmd->ioa_cfg->pdev);
7437 ipr_cmd->s.ioasa.hdr.ioasc = cpu_to_be32(IPR_IOASC_PCI_ACCESS_ERROR);
7438 rc = IPR_RC_JOB_CONTINUE;
7440 ipr_cmd->job_step = ipr_reset_bist_done;
7441 ipr_reset_start_timer(ipr_cmd, IPR_WAIT_FOR_BIST_TIMEOUT);
7442 rc = IPR_RC_JOB_RETURN;
7450 * ipr_reset_slot_reset_done - Clear PCI reset to the adapter
7451 * @ipr_cmd: ipr command struct
7453 * Description: This clears PCI reset to the adapter and delays two seconds.
7458 static int ipr_reset_slot_reset_done(struct ipr_cmnd *ipr_cmd)
7461 pci_set_pcie_reset_state(ipr_cmd->ioa_cfg->pdev, pcie_deassert_reset);
7462 ipr_cmd->job_step = ipr_reset_bist_done;
7463 ipr_reset_start_timer(ipr_cmd, IPR_WAIT_FOR_BIST_TIMEOUT);
7465 return IPR_RC_JOB_RETURN;
7469 * ipr_reset_slot_reset - Reset the PCI slot of the adapter.
7470 * @ipr_cmd: ipr command struct
7472 * Description: This asserts PCI reset to the adapter.
7477 static int ipr_reset_slot_reset(struct ipr_cmnd *ipr_cmd)
7479 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7480 struct pci_dev *pdev = ioa_cfg->pdev;
7483 pci_block_user_cfg_access(pdev);
7484 pci_set_pcie_reset_state(pdev, pcie_warm_reset);
7485 ipr_cmd->job_step = ipr_reset_slot_reset_done;
7486 ipr_reset_start_timer(ipr_cmd, IPR_PCI_RESET_TIMEOUT);
7488 return IPR_RC_JOB_RETURN;
7492 * ipr_reset_allowed - Query whether or not IOA can be reset
7493 * @ioa_cfg: ioa config struct
7496 * 0 if reset not allowed / non-zero if reset is allowed
7498 static int ipr_reset_allowed(struct ipr_ioa_cfg *ioa_cfg)
7500 volatile u32 temp_reg;
7502 temp_reg = readl(ioa_cfg->regs.sense_interrupt_reg);
7503 return ((temp_reg & IPR_PCII_CRITICAL_OPERATION) == 0);
7507 * ipr_reset_wait_to_start_bist - Wait for permission to reset IOA.
7508 * @ipr_cmd: ipr command struct
7510 * Description: This function waits for adapter permission to run BIST,
7511 * then runs BIST. If the adapter does not give permission after a
7512 * reasonable time, we will reset the adapter anyway. The impact of
7513 * resetting the adapter without warning the adapter is the risk of
7514 * losing the persistent error log on the adapter. If the adapter is
7515 * reset while it is writing to the flash on the adapter, the flash
7516 * segment will have bad ECC and be zeroed.
7519 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
7521 static int ipr_reset_wait_to_start_bist(struct ipr_cmnd *ipr_cmd)
7523 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7524 int rc = IPR_RC_JOB_RETURN;
7526 if (!ipr_reset_allowed(ioa_cfg) && ipr_cmd->u.time_left) {
7527 ipr_cmd->u.time_left -= IPR_CHECK_FOR_RESET_TIMEOUT;
7528 ipr_reset_start_timer(ipr_cmd, IPR_CHECK_FOR_RESET_TIMEOUT);
7530 ipr_cmd->job_step = ioa_cfg->reset;
7531 rc = IPR_RC_JOB_CONTINUE;
7538 * ipr_reset_alert_part2 - Alert the adapter of a pending reset
7539 * @ipr_cmd: ipr command struct
7541 * Description: This function alerts the adapter that it will be reset.
7542 * If memory space is not currently enabled, proceed directly
7543 * to running BIST on the adapter. The timer must always be started
7544 * so we guarantee we do not run BIST from ipr_isr.
7549 static int ipr_reset_alert(struct ipr_cmnd *ipr_cmd)
7551 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7556 rc = pci_read_config_word(ioa_cfg->pdev, PCI_COMMAND, &cmd_reg);
7558 if ((rc == PCIBIOS_SUCCESSFUL) && (cmd_reg & PCI_COMMAND_MEMORY)) {
7559 ipr_mask_and_clear_interrupts(ioa_cfg, ~0);
7560 writel(IPR_UPROCI_RESET_ALERT, ioa_cfg->regs.set_uproc_interrupt_reg32);
7561 ipr_cmd->job_step = ipr_reset_wait_to_start_bist;
7563 ipr_cmd->job_step = ioa_cfg->reset;
7566 ipr_cmd->u.time_left = IPR_WAIT_FOR_RESET_TIMEOUT;
7567 ipr_reset_start_timer(ipr_cmd, IPR_CHECK_FOR_RESET_TIMEOUT);
7570 return IPR_RC_JOB_RETURN;
7574 * ipr_reset_ucode_download_done - Microcode download completion
7575 * @ipr_cmd: ipr command struct
7577 * Description: This function unmaps the microcode download buffer.
7580 * IPR_RC_JOB_CONTINUE
7582 static int ipr_reset_ucode_download_done(struct ipr_cmnd *ipr_cmd)
7584 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7585 struct ipr_sglist *sglist = ioa_cfg->ucode_sglist;
7587 pci_unmap_sg(ioa_cfg->pdev, sglist->scatterlist,
7588 sglist->num_sg, DMA_TO_DEVICE);
7590 ipr_cmd->job_step = ipr_reset_alert;
7591 return IPR_RC_JOB_CONTINUE;
7595 * ipr_reset_ucode_download - Download microcode to the adapter
7596 * @ipr_cmd: ipr command struct
7598 * Description: This function checks to see if it there is microcode
7599 * to download to the adapter. If there is, a download is performed.
7602 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
7604 static int ipr_reset_ucode_download(struct ipr_cmnd *ipr_cmd)
7606 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7607 struct ipr_sglist *sglist = ioa_cfg->ucode_sglist;
7610 ipr_cmd->job_step = ipr_reset_alert;
7613 return IPR_RC_JOB_CONTINUE;
7615 ipr_cmd->ioarcb.res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE);
7616 ipr_cmd->ioarcb.cmd_pkt.request_type = IPR_RQTYPE_SCSICDB;
7617 ipr_cmd->ioarcb.cmd_pkt.cdb[0] = WRITE_BUFFER;
7618 ipr_cmd->ioarcb.cmd_pkt.cdb[1] = IPR_WR_BUF_DOWNLOAD_AND_SAVE;
7619 ipr_cmd->ioarcb.cmd_pkt.cdb[6] = (sglist->buffer_len & 0xff0000) >> 16;
7620 ipr_cmd->ioarcb.cmd_pkt.cdb[7] = (sglist->buffer_len & 0x00ff00) >> 8;
7621 ipr_cmd->ioarcb.cmd_pkt.cdb[8] = sglist->buffer_len & 0x0000ff;
7624 ipr_build_ucode_ioadl64(ipr_cmd, sglist);
7626 ipr_build_ucode_ioadl(ipr_cmd, sglist);
7627 ipr_cmd->job_step = ipr_reset_ucode_download_done;
7629 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout,
7630 IPR_WRITE_BUFFER_TIMEOUT);
7633 return IPR_RC_JOB_RETURN;
7637 * ipr_reset_shutdown_ioa - Shutdown the adapter
7638 * @ipr_cmd: ipr command struct
7640 * Description: This function issues an adapter shutdown of the
7641 * specified type to the specified adapter as part of the
7642 * adapter reset job.
7645 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
7647 static int ipr_reset_shutdown_ioa(struct ipr_cmnd *ipr_cmd)
7649 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7650 enum ipr_shutdown_type shutdown_type = ipr_cmd->u.shutdown_type;
7651 unsigned long timeout;
7652 int rc = IPR_RC_JOB_CONTINUE;
7655 if (shutdown_type != IPR_SHUTDOWN_NONE && !ioa_cfg->ioa_is_dead) {
7656 ipr_cmd->ioarcb.res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE);
7657 ipr_cmd->ioarcb.cmd_pkt.request_type = IPR_RQTYPE_IOACMD;
7658 ipr_cmd->ioarcb.cmd_pkt.cdb[0] = IPR_IOA_SHUTDOWN;
7659 ipr_cmd->ioarcb.cmd_pkt.cdb[1] = shutdown_type;
7661 if (shutdown_type == IPR_SHUTDOWN_NORMAL)
7662 timeout = IPR_SHUTDOWN_TIMEOUT;
7663 else if (shutdown_type == IPR_SHUTDOWN_PREPARE_FOR_NORMAL)
7664 timeout = IPR_INTERNAL_TIMEOUT;
7665 else if (ioa_cfg->dual_raid && ipr_dual_ioa_raid)
7666 timeout = IPR_DUAL_IOA_ABBR_SHUTDOWN_TO;
7668 timeout = IPR_ABBREV_SHUTDOWN_TIMEOUT;
7670 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, timeout);
7672 rc = IPR_RC_JOB_RETURN;
7673 ipr_cmd->job_step = ipr_reset_ucode_download;
7675 ipr_cmd->job_step = ipr_reset_alert;
7682 * ipr_reset_ioa_job - Adapter reset job
7683 * @ipr_cmd: ipr command struct
7685 * Description: This function is the job router for the adapter reset job.
7690 static void ipr_reset_ioa_job(struct ipr_cmnd *ipr_cmd)
7693 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7696 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
7698 if (ioa_cfg->reset_cmd != ipr_cmd) {
7700 * We are doing nested adapter resets and this is
7701 * not the current reset job.
7703 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
7707 if (IPR_IOASC_SENSE_KEY(ioasc)) {
7708 rc = ipr_cmd->job_step_failed(ipr_cmd);
7709 if (rc == IPR_RC_JOB_RETURN)
7713 ipr_reinit_ipr_cmnd(ipr_cmd);
7714 ipr_cmd->job_step_failed = ipr_reset_cmd_failed;
7715 rc = ipr_cmd->job_step(ipr_cmd);
7716 } while(rc == IPR_RC_JOB_CONTINUE);
7720 * _ipr_initiate_ioa_reset - Initiate an adapter reset
7721 * @ioa_cfg: ioa config struct
7722 * @job_step: first job step of reset job
7723 * @shutdown_type: shutdown type
7725 * Description: This function will initiate the reset of the given adapter
7726 * starting at the selected job step.
7727 * If the caller needs to wait on the completion of the reset,
7728 * the caller must sleep on the reset_wait_q.
7733 static void _ipr_initiate_ioa_reset(struct ipr_ioa_cfg *ioa_cfg,
7734 int (*job_step) (struct ipr_cmnd *),
7735 enum ipr_shutdown_type shutdown_type)
7737 struct ipr_cmnd *ipr_cmd;
7739 ioa_cfg->in_reset_reload = 1;
7740 ioa_cfg->allow_cmds = 0;
7741 scsi_block_requests(ioa_cfg->host);
7743 ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg);
7744 ioa_cfg->reset_cmd = ipr_cmd;
7745 ipr_cmd->job_step = job_step;
7746 ipr_cmd->u.shutdown_type = shutdown_type;
7748 ipr_reset_ioa_job(ipr_cmd);
7752 * ipr_initiate_ioa_reset - Initiate an adapter reset
7753 * @ioa_cfg: ioa config struct
7754 * @shutdown_type: shutdown type
7756 * Description: This function will initiate the reset of the given adapter.
7757 * If the caller needs to wait on the completion of the reset,
7758 * the caller must sleep on the reset_wait_q.
7763 static void ipr_initiate_ioa_reset(struct ipr_ioa_cfg *ioa_cfg,
7764 enum ipr_shutdown_type shutdown_type)
7766 if (ioa_cfg->ioa_is_dead)
7769 if (ioa_cfg->in_reset_reload && ioa_cfg->sdt_state == GET_DUMP)
7770 ioa_cfg->sdt_state = ABORT_DUMP;
7772 if (ioa_cfg->reset_retries++ >= IPR_NUM_RESET_RELOAD_RETRIES) {
7773 dev_err(&ioa_cfg->pdev->dev,
7774 "IOA taken offline - error recovery failed\n");
7776 ioa_cfg->reset_retries = 0;
7777 ioa_cfg->ioa_is_dead = 1;
7779 if (ioa_cfg->in_ioa_bringdown) {
7780 ioa_cfg->reset_cmd = NULL;
7781 ioa_cfg->in_reset_reload = 0;
7782 ipr_fail_all_ops(ioa_cfg);
7783 wake_up_all(&ioa_cfg->reset_wait_q);
7785 spin_unlock_irq(ioa_cfg->host->host_lock);
7786 scsi_unblock_requests(ioa_cfg->host);
7787 spin_lock_irq(ioa_cfg->host->host_lock);
7790 ioa_cfg->in_ioa_bringdown = 1;
7791 shutdown_type = IPR_SHUTDOWN_NONE;
7795 _ipr_initiate_ioa_reset(ioa_cfg, ipr_reset_shutdown_ioa,
7800 * ipr_reset_freeze - Hold off all I/O activity
7801 * @ipr_cmd: ipr command struct
7803 * Description: If the PCI slot is frozen, hold off all I/O
7804 * activity; then, as soon as the slot is available again,
7805 * initiate an adapter reset.
7807 static int ipr_reset_freeze(struct ipr_cmnd *ipr_cmd)
7809 /* Disallow new interrupts, avoid loop */
7810 ipr_cmd->ioa_cfg->allow_interrupts = 0;
7811 list_add_tail(&ipr_cmd->queue, &ipr_cmd->ioa_cfg->pending_q);
7812 ipr_cmd->done = ipr_reset_ioa_job;
7813 return IPR_RC_JOB_RETURN;
7817 * ipr_pci_frozen - Called when slot has experienced a PCI bus error.
7818 * @pdev: PCI device struct
7820 * Description: This routine is called to tell us that the PCI bus
7821 * is down. Can't do anything here, except put the device driver
7822 * into a holding pattern, waiting for the PCI bus to come back.
7824 static void ipr_pci_frozen(struct pci_dev *pdev)
7826 unsigned long flags = 0;
7827 struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev);
7829 spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
7830 _ipr_initiate_ioa_reset(ioa_cfg, ipr_reset_freeze, IPR_SHUTDOWN_NONE);
7831 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
7835 * ipr_pci_slot_reset - Called when PCI slot has been reset.
7836 * @pdev: PCI device struct
7838 * Description: This routine is called by the pci error recovery
7839 * code after the PCI slot has been reset, just before we
7840 * should resume normal operations.
7842 static pci_ers_result_t ipr_pci_slot_reset(struct pci_dev *pdev)
7844 unsigned long flags = 0;
7845 struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev);
7847 spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
7848 if (ioa_cfg->needs_warm_reset)
7849 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
7851 _ipr_initiate_ioa_reset(ioa_cfg, ipr_reset_restore_cfg_space,
7853 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
7854 return PCI_ERS_RESULT_RECOVERED;
7858 * ipr_pci_perm_failure - Called when PCI slot is dead for good.
7859 * @pdev: PCI device struct
7861 * Description: This routine is called when the PCI bus has
7862 * permanently failed.
7864 static void ipr_pci_perm_failure(struct pci_dev *pdev)
7866 unsigned long flags = 0;
7867 struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev);
7869 spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
7870 if (ioa_cfg->sdt_state == WAIT_FOR_DUMP)
7871 ioa_cfg->sdt_state = ABORT_DUMP;
7872 ioa_cfg->reset_retries = IPR_NUM_RESET_RELOAD_RETRIES;
7873 ioa_cfg->in_ioa_bringdown = 1;
7874 ioa_cfg->allow_cmds = 0;
7875 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
7876 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
7880 * ipr_pci_error_detected - Called when a PCI error is detected.
7881 * @pdev: PCI device struct
7882 * @state: PCI channel state
7884 * Description: Called when a PCI error is detected.
7887 * PCI_ERS_RESULT_NEED_RESET or PCI_ERS_RESULT_DISCONNECT
7889 static pci_ers_result_t ipr_pci_error_detected(struct pci_dev *pdev,
7890 pci_channel_state_t state)
7893 case pci_channel_io_frozen:
7894 ipr_pci_frozen(pdev);
7895 return PCI_ERS_RESULT_NEED_RESET;
7896 case pci_channel_io_perm_failure:
7897 ipr_pci_perm_failure(pdev);
7898 return PCI_ERS_RESULT_DISCONNECT;
7903 return PCI_ERS_RESULT_NEED_RESET;
7907 * ipr_probe_ioa_part2 - Initializes IOAs found in ipr_probe_ioa(..)
7908 * @ioa_cfg: ioa cfg struct
7910 * Description: This is the second phase of adapter intialization
7911 * This function takes care of initilizing the adapter to the point
7912 * where it can accept new commands.
7915 * 0 on success / -EIO on failure
7917 static int __devinit ipr_probe_ioa_part2(struct ipr_ioa_cfg *ioa_cfg)
7920 unsigned long host_lock_flags = 0;
7923 spin_lock_irqsave(ioa_cfg->host->host_lock, host_lock_flags);
7924 dev_dbg(&ioa_cfg->pdev->dev, "ioa_cfg adx: 0x%p\n", ioa_cfg);
7925 if (ioa_cfg->needs_hard_reset) {
7926 ioa_cfg->needs_hard_reset = 0;
7927 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
7929 _ipr_initiate_ioa_reset(ioa_cfg, ipr_reset_enable_ioa,
7932 spin_unlock_irqrestore(ioa_cfg->host->host_lock, host_lock_flags);
7933 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
7934 spin_lock_irqsave(ioa_cfg->host->host_lock, host_lock_flags);
7936 if (ioa_cfg->ioa_is_dead) {
7938 } else if (ipr_invalid_adapter(ioa_cfg)) {
7942 dev_err(&ioa_cfg->pdev->dev,
7943 "Adapter not supported in this hardware configuration.\n");
7946 spin_unlock_irqrestore(ioa_cfg->host->host_lock, host_lock_flags);
7953 * ipr_free_cmd_blks - Frees command blocks allocated for an adapter
7954 * @ioa_cfg: ioa config struct
7959 static void ipr_free_cmd_blks(struct ipr_ioa_cfg *ioa_cfg)
7963 for (i = 0; i < IPR_NUM_CMD_BLKS; i++) {
7964 if (ioa_cfg->ipr_cmnd_list[i])
7965 pci_pool_free(ioa_cfg->ipr_cmd_pool,
7966 ioa_cfg->ipr_cmnd_list[i],
7967 ioa_cfg->ipr_cmnd_list_dma[i]);
7969 ioa_cfg->ipr_cmnd_list[i] = NULL;
7972 if (ioa_cfg->ipr_cmd_pool)
7973 pci_pool_destroy (ioa_cfg->ipr_cmd_pool);
7975 ioa_cfg->ipr_cmd_pool = NULL;
7979 * ipr_free_mem - Frees memory allocated for an adapter
7980 * @ioa_cfg: ioa cfg struct
7985 static void ipr_free_mem(struct ipr_ioa_cfg *ioa_cfg)
7989 kfree(ioa_cfg->res_entries);
7990 pci_free_consistent(ioa_cfg->pdev, sizeof(struct ipr_misc_cbs),
7991 ioa_cfg->vpd_cbs, ioa_cfg->vpd_cbs_dma);
7992 ipr_free_cmd_blks(ioa_cfg);
7993 pci_free_consistent(ioa_cfg->pdev, sizeof(u32) * IPR_NUM_CMD_BLKS,
7994 ioa_cfg->host_rrq, ioa_cfg->host_rrq_dma);
7995 pci_free_consistent(ioa_cfg->pdev, ioa_cfg->cfg_table_size,
7996 ioa_cfg->u.cfg_table,
7997 ioa_cfg->cfg_table_dma);
7999 for (i = 0; i < IPR_NUM_HCAMS; i++) {
8000 pci_free_consistent(ioa_cfg->pdev,
8001 sizeof(struct ipr_hostrcb),
8002 ioa_cfg->hostrcb[i],
8003 ioa_cfg->hostrcb_dma[i]);
8006 ipr_free_dump(ioa_cfg);
8007 kfree(ioa_cfg->trace);
8011 * ipr_free_all_resources - Free all allocated resources for an adapter.
8012 * @ipr_cmd: ipr command struct
8014 * This function frees all allocated resources for the
8015 * specified adapter.
8020 static void ipr_free_all_resources(struct ipr_ioa_cfg *ioa_cfg)
8022 struct pci_dev *pdev = ioa_cfg->pdev;
8025 free_irq(pdev->irq, ioa_cfg);
8026 pci_disable_msi(pdev);
8027 iounmap(ioa_cfg->hdw_dma_regs);
8028 pci_release_regions(pdev);
8029 ipr_free_mem(ioa_cfg);
8030 scsi_host_put(ioa_cfg->host);
8031 pci_disable_device(pdev);
8036 * ipr_alloc_cmd_blks - Allocate command blocks for an adapter
8037 * @ioa_cfg: ioa config struct
8040 * 0 on success / -ENOMEM on allocation failure
8042 static int __devinit ipr_alloc_cmd_blks(struct ipr_ioa_cfg *ioa_cfg)
8044 struct ipr_cmnd *ipr_cmd;
8045 struct ipr_ioarcb *ioarcb;
8046 dma_addr_t dma_addr;
8049 ioa_cfg->ipr_cmd_pool = pci_pool_create (IPR_NAME, ioa_cfg->pdev,
8050 sizeof(struct ipr_cmnd), 16, 0);
8052 if (!ioa_cfg->ipr_cmd_pool)
8055 for (i = 0; i < IPR_NUM_CMD_BLKS; i++) {
8056 ipr_cmd = pci_pool_alloc (ioa_cfg->ipr_cmd_pool, GFP_KERNEL, &dma_addr);
8059 ipr_free_cmd_blks(ioa_cfg);
8063 memset(ipr_cmd, 0, sizeof(*ipr_cmd));
8064 ioa_cfg->ipr_cmnd_list[i] = ipr_cmd;
8065 ioa_cfg->ipr_cmnd_list_dma[i] = dma_addr;
8067 ioarcb = &ipr_cmd->ioarcb;
8068 ipr_cmd->dma_addr = dma_addr;
8070 ioarcb->a.ioarcb_host_pci_addr64 = cpu_to_be64(dma_addr);
8072 ioarcb->a.ioarcb_host_pci_addr = cpu_to_be32(dma_addr);
8074 ioarcb->host_response_handle = cpu_to_be32(i << 2);
8075 if (ioa_cfg->sis64) {
8076 ioarcb->u.sis64_addr_data.data_ioadl_addr =
8077 cpu_to_be64(dma_addr + offsetof(struct ipr_cmnd, i.ioadl64));
8078 ioarcb->u.sis64_addr_data.ioasa_host_pci_addr =
8079 cpu_to_be64(dma_addr + offsetof(struct ipr_cmnd, s.ioasa64));
8081 ioarcb->write_ioadl_addr =
8082 cpu_to_be32(dma_addr + offsetof(struct ipr_cmnd, i.ioadl));
8083 ioarcb->read_ioadl_addr = ioarcb->write_ioadl_addr;
8084 ioarcb->ioasa_host_pci_addr =
8085 cpu_to_be32(dma_addr + offsetof(struct ipr_cmnd, s.ioasa));
8087 ioarcb->ioasa_len = cpu_to_be16(sizeof(struct ipr_ioasa));
8088 ipr_cmd->cmd_index = i;
8089 ipr_cmd->ioa_cfg = ioa_cfg;
8090 ipr_cmd->sense_buffer_dma = dma_addr +
8091 offsetof(struct ipr_cmnd, sense_buffer);
8093 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
8100 * ipr_alloc_mem - Allocate memory for an adapter
8101 * @ioa_cfg: ioa config struct
8104 * 0 on success / non-zero for error
8106 static int __devinit ipr_alloc_mem(struct ipr_ioa_cfg *ioa_cfg)
8108 struct pci_dev *pdev = ioa_cfg->pdev;
8109 int i, rc = -ENOMEM;
8112 ioa_cfg->res_entries = kzalloc(sizeof(struct ipr_resource_entry) *
8113 ioa_cfg->max_devs_supported, GFP_KERNEL);
8115 if (!ioa_cfg->res_entries)
8118 if (ioa_cfg->sis64) {
8119 ioa_cfg->target_ids = kzalloc(sizeof(unsigned long) *
8120 BITS_TO_LONGS(ioa_cfg->max_devs_supported), GFP_KERNEL);
8121 ioa_cfg->array_ids = kzalloc(sizeof(unsigned long) *
8122 BITS_TO_LONGS(ioa_cfg->max_devs_supported), GFP_KERNEL);
8123 ioa_cfg->vset_ids = kzalloc(sizeof(unsigned long) *
8124 BITS_TO_LONGS(ioa_cfg->max_devs_supported), GFP_KERNEL);
8127 for (i = 0; i < ioa_cfg->max_devs_supported; i++) {
8128 list_add_tail(&ioa_cfg->res_entries[i].queue, &ioa_cfg->free_res_q);
8129 ioa_cfg->res_entries[i].ioa_cfg = ioa_cfg;
8132 ioa_cfg->vpd_cbs = pci_alloc_consistent(ioa_cfg->pdev,
8133 sizeof(struct ipr_misc_cbs),
8134 &ioa_cfg->vpd_cbs_dma);
8136 if (!ioa_cfg->vpd_cbs)
8137 goto out_free_res_entries;
8139 if (ipr_alloc_cmd_blks(ioa_cfg))
8140 goto out_free_vpd_cbs;
8142 ioa_cfg->host_rrq = pci_alloc_consistent(ioa_cfg->pdev,
8143 sizeof(u32) * IPR_NUM_CMD_BLKS,
8144 &ioa_cfg->host_rrq_dma);
8146 if (!ioa_cfg->host_rrq)
8147 goto out_ipr_free_cmd_blocks;
8149 ioa_cfg->u.cfg_table = pci_alloc_consistent(ioa_cfg->pdev,
8150 ioa_cfg->cfg_table_size,
8151 &ioa_cfg->cfg_table_dma);
8153 if (!ioa_cfg->u.cfg_table)
8154 goto out_free_host_rrq;
8156 for (i = 0; i < IPR_NUM_HCAMS; i++) {
8157 ioa_cfg->hostrcb[i] = pci_alloc_consistent(ioa_cfg->pdev,
8158 sizeof(struct ipr_hostrcb),
8159 &ioa_cfg->hostrcb_dma[i]);
8161 if (!ioa_cfg->hostrcb[i])
8162 goto out_free_hostrcb_dma;
8164 ioa_cfg->hostrcb[i]->hostrcb_dma =
8165 ioa_cfg->hostrcb_dma[i] + offsetof(struct ipr_hostrcb, hcam);
8166 ioa_cfg->hostrcb[i]->ioa_cfg = ioa_cfg;
8167 list_add_tail(&ioa_cfg->hostrcb[i]->queue, &ioa_cfg->hostrcb_free_q);
8170 ioa_cfg->trace = kzalloc(sizeof(struct ipr_trace_entry) *
8171 IPR_NUM_TRACE_ENTRIES, GFP_KERNEL);
8173 if (!ioa_cfg->trace)
8174 goto out_free_hostrcb_dma;
8181 out_free_hostrcb_dma:
8183 pci_free_consistent(pdev, sizeof(struct ipr_hostrcb),
8184 ioa_cfg->hostrcb[i],
8185 ioa_cfg->hostrcb_dma[i]);
8187 pci_free_consistent(pdev, ioa_cfg->cfg_table_size,
8188 ioa_cfg->u.cfg_table,
8189 ioa_cfg->cfg_table_dma);
8191 pci_free_consistent(pdev, sizeof(u32) * IPR_NUM_CMD_BLKS,
8192 ioa_cfg->host_rrq, ioa_cfg->host_rrq_dma);
8193 out_ipr_free_cmd_blocks:
8194 ipr_free_cmd_blks(ioa_cfg);
8196 pci_free_consistent(pdev, sizeof(struct ipr_misc_cbs),
8197 ioa_cfg->vpd_cbs, ioa_cfg->vpd_cbs_dma);
8198 out_free_res_entries:
8199 kfree(ioa_cfg->res_entries);
8204 * ipr_initialize_bus_attr - Initialize SCSI bus attributes to default values
8205 * @ioa_cfg: ioa config struct
8210 static void __devinit ipr_initialize_bus_attr(struct ipr_ioa_cfg *ioa_cfg)
8214 for (i = 0; i < IPR_MAX_NUM_BUSES; i++) {
8215 ioa_cfg->bus_attr[i].bus = i;
8216 ioa_cfg->bus_attr[i].qas_enabled = 0;
8217 ioa_cfg->bus_attr[i].bus_width = IPR_DEFAULT_BUS_WIDTH;
8218 if (ipr_max_speed < ARRAY_SIZE(ipr_max_bus_speeds))
8219 ioa_cfg->bus_attr[i].max_xfer_rate = ipr_max_bus_speeds[ipr_max_speed];
8221 ioa_cfg->bus_attr[i].max_xfer_rate = IPR_U160_SCSI_RATE;
8226 * ipr_init_ioa_cfg - Initialize IOA config struct
8227 * @ioa_cfg: ioa config struct
8228 * @host: scsi host struct
8229 * @pdev: PCI dev struct
8234 static void __devinit ipr_init_ioa_cfg(struct ipr_ioa_cfg *ioa_cfg,
8235 struct Scsi_Host *host, struct pci_dev *pdev)
8237 const struct ipr_interrupt_offsets *p;
8238 struct ipr_interrupts *t;
8241 ioa_cfg->host = host;
8242 ioa_cfg->pdev = pdev;
8243 ioa_cfg->log_level = ipr_log_level;
8244 ioa_cfg->doorbell = IPR_DOORBELL;
8245 sprintf(ioa_cfg->eye_catcher, IPR_EYECATCHER);
8246 sprintf(ioa_cfg->trace_start, IPR_TRACE_START_LABEL);
8247 sprintf(ioa_cfg->ipr_free_label, IPR_FREEQ_LABEL);
8248 sprintf(ioa_cfg->ipr_pending_label, IPR_PENDQ_LABEL);
8249 sprintf(ioa_cfg->cfg_table_start, IPR_CFG_TBL_START);
8250 sprintf(ioa_cfg->resource_table_label, IPR_RES_TABLE_LABEL);
8251 sprintf(ioa_cfg->ipr_hcam_label, IPR_HCAM_LABEL);
8252 sprintf(ioa_cfg->ipr_cmd_label, IPR_CMD_LABEL);
8254 INIT_LIST_HEAD(&ioa_cfg->free_q);
8255 INIT_LIST_HEAD(&ioa_cfg->pending_q);
8256 INIT_LIST_HEAD(&ioa_cfg->hostrcb_free_q);
8257 INIT_LIST_HEAD(&ioa_cfg->hostrcb_pending_q);
8258 INIT_LIST_HEAD(&ioa_cfg->free_res_q);
8259 INIT_LIST_HEAD(&ioa_cfg->used_res_q);
8260 INIT_WORK(&ioa_cfg->work_q, ipr_worker_thread);
8261 init_waitqueue_head(&ioa_cfg->reset_wait_q);
8262 init_waitqueue_head(&ioa_cfg->msi_wait_q);
8263 ioa_cfg->sdt_state = INACTIVE;
8265 ipr_initialize_bus_attr(ioa_cfg);
8266 ioa_cfg->max_devs_supported = ipr_max_devs;
8268 if (ioa_cfg->sis64) {
8269 host->max_id = IPR_MAX_SIS64_TARGETS_PER_BUS;
8270 host->max_lun = IPR_MAX_SIS64_LUNS_PER_TARGET;
8271 if (ipr_max_devs > IPR_MAX_SIS64_DEVS)
8272 ioa_cfg->max_devs_supported = IPR_MAX_SIS64_DEVS;
8274 host->max_id = IPR_MAX_NUM_TARGETS_PER_BUS;
8275 host->max_lun = IPR_MAX_NUM_LUNS_PER_TARGET;
8276 if (ipr_max_devs > IPR_MAX_PHYSICAL_DEVS)
8277 ioa_cfg->max_devs_supported = IPR_MAX_PHYSICAL_DEVS;
8279 host->max_channel = IPR_MAX_BUS_TO_SCAN;
8280 host->unique_id = host->host_no;
8281 host->max_cmd_len = IPR_MAX_CDB_LEN;
8282 pci_set_drvdata(pdev, ioa_cfg);
8284 p = &ioa_cfg->chip_cfg->regs;
8286 base = ioa_cfg->hdw_dma_regs;
8288 t->set_interrupt_mask_reg = base + p->set_interrupt_mask_reg;
8289 t->clr_interrupt_mask_reg = base + p->clr_interrupt_mask_reg;
8290 t->clr_interrupt_mask_reg32 = base + p->clr_interrupt_mask_reg32;
8291 t->sense_interrupt_mask_reg = base + p->sense_interrupt_mask_reg;
8292 t->sense_interrupt_mask_reg32 = base + p->sense_interrupt_mask_reg32;
8293 t->clr_interrupt_reg = base + p->clr_interrupt_reg;
8294 t->clr_interrupt_reg32 = base + p->clr_interrupt_reg32;
8295 t->sense_interrupt_reg = base + p->sense_interrupt_reg;
8296 t->sense_interrupt_reg32 = base + p->sense_interrupt_reg32;
8297 t->ioarrin_reg = base + p->ioarrin_reg;
8298 t->sense_uproc_interrupt_reg = base + p->sense_uproc_interrupt_reg;
8299 t->sense_uproc_interrupt_reg32 = base + p->sense_uproc_interrupt_reg32;
8300 t->set_uproc_interrupt_reg = base + p->set_uproc_interrupt_reg;
8301 t->set_uproc_interrupt_reg32 = base + p->set_uproc_interrupt_reg32;
8302 t->clr_uproc_interrupt_reg = base + p->clr_uproc_interrupt_reg;
8303 t->clr_uproc_interrupt_reg32 = base + p->clr_uproc_interrupt_reg32;
8305 if (ioa_cfg->sis64) {
8306 t->init_feedback_reg = base + p->init_feedback_reg;
8307 t->dump_addr_reg = base + p->dump_addr_reg;
8308 t->dump_data_reg = base + p->dump_data_reg;
8313 * ipr_get_chip_info - Find adapter chip information
8314 * @dev_id: PCI device id struct
8317 * ptr to chip information on success / NULL on failure
8319 static const struct ipr_chip_t * __devinit
8320 ipr_get_chip_info(const struct pci_device_id *dev_id)
8324 for (i = 0; i < ARRAY_SIZE(ipr_chip); i++)
8325 if (ipr_chip[i].vendor == dev_id->vendor &&
8326 ipr_chip[i].device == dev_id->device)
8327 return &ipr_chip[i];
8332 * ipr_test_intr - Handle the interrupt generated in ipr_test_msi().
8333 * @pdev: PCI device struct
8335 * Description: Simply set the msi_received flag to 1 indicating that
8336 * Message Signaled Interrupts are supported.
8339 * 0 on success / non-zero on failure
8341 static irqreturn_t __devinit ipr_test_intr(int irq, void *devp)
8343 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)devp;
8344 unsigned long lock_flags = 0;
8345 irqreturn_t rc = IRQ_HANDLED;
8347 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
8349 ioa_cfg->msi_received = 1;
8350 wake_up(&ioa_cfg->msi_wait_q);
8352 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
8357 * ipr_test_msi - Test for Message Signaled Interrupt (MSI) support.
8358 * @pdev: PCI device struct
8360 * Description: The return value from pci_enable_msi() can not always be
8361 * trusted. This routine sets up and initiates a test interrupt to determine
8362 * if the interrupt is received via the ipr_test_intr() service routine.
8363 * If the tests fails, the driver will fall back to LSI.
8366 * 0 on success / non-zero on failure
8368 static int __devinit ipr_test_msi(struct ipr_ioa_cfg *ioa_cfg,
8369 struct pci_dev *pdev)
8372 volatile u32 int_reg;
8373 unsigned long lock_flags = 0;
8377 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
8378 init_waitqueue_head(&ioa_cfg->msi_wait_q);
8379 ioa_cfg->msi_received = 0;
8380 ipr_mask_and_clear_interrupts(ioa_cfg, ~IPR_PCII_IOA_TRANS_TO_OPER);
8381 writel(IPR_PCII_IO_DEBUG_ACKNOWLEDGE, ioa_cfg->regs.clr_interrupt_mask_reg32);
8382 int_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg);
8383 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
8385 rc = request_irq(pdev->irq, ipr_test_intr, 0, IPR_NAME, ioa_cfg);
8387 dev_err(&pdev->dev, "Can not assign irq %d\n", pdev->irq);
8389 } else if (ipr_debug)
8390 dev_info(&pdev->dev, "IRQ assigned: %d\n", pdev->irq);
8392 writel(IPR_PCII_IO_DEBUG_ACKNOWLEDGE, ioa_cfg->regs.sense_interrupt_reg32);
8393 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg);
8394 wait_event_timeout(ioa_cfg->msi_wait_q, ioa_cfg->msi_received, HZ);
8395 ipr_mask_and_clear_interrupts(ioa_cfg, ~IPR_PCII_IOA_TRANS_TO_OPER);
8397 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
8398 if (!ioa_cfg->msi_received) {
8399 /* MSI test failed */
8400 dev_info(&pdev->dev, "MSI test failed. Falling back to LSI.\n");
8402 } else if (ipr_debug)
8403 dev_info(&pdev->dev, "MSI test succeeded.\n");
8405 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
8407 free_irq(pdev->irq, ioa_cfg);
8415 * ipr_probe_ioa - Allocates memory and does first stage of initialization
8416 * @pdev: PCI device struct
8417 * @dev_id: PCI device id struct
8420 * 0 on success / non-zero on failure
8422 static int __devinit ipr_probe_ioa(struct pci_dev *pdev,
8423 const struct pci_device_id *dev_id)
8425 struct ipr_ioa_cfg *ioa_cfg;
8426 struct Scsi_Host *host;
8427 unsigned long ipr_regs_pci;
8428 void __iomem *ipr_regs;
8429 int rc = PCIBIOS_SUCCESSFUL;
8430 volatile u32 mask, uproc, interrupts;
8434 if ((rc = pci_enable_device(pdev))) {
8435 dev_err(&pdev->dev, "Cannot enable adapter\n");
8439 dev_info(&pdev->dev, "Found IOA with IRQ: %d\n", pdev->irq);
8441 host = scsi_host_alloc(&driver_template, sizeof(*ioa_cfg));
8444 dev_err(&pdev->dev, "call to scsi_host_alloc failed!\n");
8449 ioa_cfg = (struct ipr_ioa_cfg *)host->hostdata;
8450 memset(ioa_cfg, 0, sizeof(struct ipr_ioa_cfg));
8451 ata_host_init(&ioa_cfg->ata_host, &pdev->dev,
8452 sata_port_info.flags, &ipr_sata_ops);
8454 ioa_cfg->ipr_chip = ipr_get_chip_info(dev_id);
8456 if (!ioa_cfg->ipr_chip) {
8457 dev_err(&pdev->dev, "Unknown adapter chipset 0x%04X 0x%04X\n",
8458 dev_id->vendor, dev_id->device);
8459 goto out_scsi_host_put;
8462 /* set SIS 32 or SIS 64 */
8463 ioa_cfg->sis64 = ioa_cfg->ipr_chip->sis_type == IPR_SIS64 ? 1 : 0;
8464 ioa_cfg->chip_cfg = ioa_cfg->ipr_chip->cfg;
8466 if (ipr_transop_timeout)
8467 ioa_cfg->transop_timeout = ipr_transop_timeout;
8468 else if (dev_id->driver_data & IPR_USE_LONG_TRANSOP_TIMEOUT)
8469 ioa_cfg->transop_timeout = IPR_LONG_OPERATIONAL_TIMEOUT;
8471 ioa_cfg->transop_timeout = IPR_OPERATIONAL_TIMEOUT;
8473 ioa_cfg->revid = pdev->revision;
8475 ipr_regs_pci = pci_resource_start(pdev, 0);
8477 rc = pci_request_regions(pdev, IPR_NAME);
8480 "Couldn't register memory range of registers\n");
8481 goto out_scsi_host_put;
8484 ipr_regs = pci_ioremap_bar(pdev, 0);
8488 "Couldn't map memory range of registers\n");
8490 goto out_release_regions;
8493 ioa_cfg->hdw_dma_regs = ipr_regs;
8494 ioa_cfg->hdw_dma_regs_pci = ipr_regs_pci;
8495 ioa_cfg->ioa_mailbox = ioa_cfg->chip_cfg->mailbox + ipr_regs;
8497 ipr_init_ioa_cfg(ioa_cfg, host, pdev);
8499 pci_set_master(pdev);
8501 if (ioa_cfg->sis64) {
8502 rc = pci_set_dma_mask(pdev, DMA_BIT_MASK(64));
8504 dev_dbg(&pdev->dev, "Failed to set 64 bit PCI DMA mask\n");
8505 rc = pci_set_dma_mask(pdev, DMA_BIT_MASK(32));
8509 rc = pci_set_dma_mask(pdev, DMA_BIT_MASK(32));
8512 dev_err(&pdev->dev, "Failed to set PCI DMA mask\n");
8516 rc = pci_write_config_byte(pdev, PCI_CACHE_LINE_SIZE,
8517 ioa_cfg->chip_cfg->cache_line_size);
8519 if (rc != PCIBIOS_SUCCESSFUL) {
8520 dev_err(&pdev->dev, "Write of cache line size failed\n");
8525 /* Enable MSI style interrupts if they are supported. */
8526 if (ioa_cfg->ipr_chip->intr_type == IPR_USE_MSI && !pci_enable_msi(pdev)) {
8527 rc = ipr_test_msi(ioa_cfg, pdev);
8528 if (rc == -EOPNOTSUPP)
8529 pci_disable_msi(pdev);
8531 goto out_msi_disable;
8533 dev_info(&pdev->dev, "MSI enabled with IRQ: %d\n", pdev->irq);
8534 } else if (ipr_debug)
8535 dev_info(&pdev->dev, "Cannot enable MSI.\n");
8537 /* Save away PCI config space for use following IOA reset */
8538 rc = pci_save_state(pdev);
8540 if (rc != PCIBIOS_SUCCESSFUL) {
8541 dev_err(&pdev->dev, "Failed to save PCI config space\n");
8546 if ((rc = ipr_save_pcix_cmd_reg(ioa_cfg)))
8549 if ((rc = ipr_set_pcix_cmd_reg(ioa_cfg)))
8553 ioa_cfg->cfg_table_size = (sizeof(struct ipr_config_table_hdr64)
8554 + ((sizeof(struct ipr_config_table_entry64)
8555 * ioa_cfg->max_devs_supported)));
8557 ioa_cfg->cfg_table_size = (sizeof(struct ipr_config_table_hdr)
8558 + ((sizeof(struct ipr_config_table_entry)
8559 * ioa_cfg->max_devs_supported)));
8561 rc = ipr_alloc_mem(ioa_cfg);
8564 "Couldn't allocate enough memory for device driver!\n");
8569 * If HRRQ updated interrupt is not masked, or reset alert is set,
8570 * the card is in an unknown state and needs a hard reset
8572 mask = readl(ioa_cfg->regs.sense_interrupt_mask_reg32);
8573 interrupts = readl(ioa_cfg->regs.sense_interrupt_reg32);
8574 uproc = readl(ioa_cfg->regs.sense_uproc_interrupt_reg32);
8575 if ((mask & IPR_PCII_HRRQ_UPDATED) == 0 || (uproc & IPR_UPROCI_RESET_ALERT))
8576 ioa_cfg->needs_hard_reset = 1;
8577 if (interrupts & IPR_PCII_ERROR_INTERRUPTS)
8578 ioa_cfg->needs_hard_reset = 1;
8579 if (interrupts & IPR_PCII_IOA_UNIT_CHECKED)
8580 ioa_cfg->ioa_unit_checked = 1;
8582 ipr_mask_and_clear_interrupts(ioa_cfg, ~IPR_PCII_IOA_TRANS_TO_OPER);
8583 rc = request_irq(pdev->irq, ipr_isr,
8584 ioa_cfg->msi_received ? 0 : IRQF_SHARED,
8588 dev_err(&pdev->dev, "Couldn't register IRQ %d! rc=%d\n",
8593 if ((dev_id->driver_data & IPR_USE_PCI_WARM_RESET) ||
8594 (dev_id->device == PCI_DEVICE_ID_IBM_OBSIDIAN_E && !ioa_cfg->revid)) {
8595 ioa_cfg->needs_warm_reset = 1;
8596 ioa_cfg->reset = ipr_reset_slot_reset;
8598 ioa_cfg->reset = ipr_reset_start_bist;
8600 spin_lock(&ipr_driver_lock);
8601 list_add_tail(&ioa_cfg->queue, &ipr_ioa_head);
8602 spin_unlock(&ipr_driver_lock);
8609 ipr_free_mem(ioa_cfg);
8613 pci_disable_msi(pdev);
8614 out_release_regions:
8615 pci_release_regions(pdev);
8617 scsi_host_put(host);
8619 pci_disable_device(pdev);
8624 * ipr_scan_vsets - Scans for VSET devices
8625 * @ioa_cfg: ioa config struct
8627 * Description: Since the VSET resources do not follow SAM in that we can have
8628 * sparse LUNs with no LUN 0, we have to scan for these ourselves.
8633 static void ipr_scan_vsets(struct ipr_ioa_cfg *ioa_cfg)
8637 for (target = 0; target < IPR_MAX_NUM_TARGETS_PER_BUS; target++)
8638 for (lun = 0; lun < IPR_MAX_NUM_VSET_LUNS_PER_TARGET; lun++ )
8639 scsi_add_device(ioa_cfg->host, IPR_VSET_BUS, target, lun);
8643 * ipr_initiate_ioa_bringdown - Bring down an adapter
8644 * @ioa_cfg: ioa config struct
8645 * @shutdown_type: shutdown type
8647 * Description: This function will initiate bringing down the adapter.
8648 * This consists of issuing an IOA shutdown to the adapter
8649 * to flush the cache, and running BIST.
8650 * If the caller needs to wait on the completion of the reset,
8651 * the caller must sleep on the reset_wait_q.
8656 static void ipr_initiate_ioa_bringdown(struct ipr_ioa_cfg *ioa_cfg,
8657 enum ipr_shutdown_type shutdown_type)
8660 if (ioa_cfg->sdt_state == WAIT_FOR_DUMP)
8661 ioa_cfg->sdt_state = ABORT_DUMP;
8662 ioa_cfg->reset_retries = 0;
8663 ioa_cfg->in_ioa_bringdown = 1;
8664 ipr_initiate_ioa_reset(ioa_cfg, shutdown_type);
8669 * __ipr_remove - Remove a single adapter
8670 * @pdev: pci device struct
8672 * Adapter hot plug remove entry point.
8677 static void __ipr_remove(struct pci_dev *pdev)
8679 unsigned long host_lock_flags = 0;
8680 struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev);
8683 spin_lock_irqsave(ioa_cfg->host->host_lock, host_lock_flags);
8684 while(ioa_cfg->in_reset_reload) {
8685 spin_unlock_irqrestore(ioa_cfg->host->host_lock, host_lock_flags);
8686 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
8687 spin_lock_irqsave(ioa_cfg->host->host_lock, host_lock_flags);
8690 ipr_initiate_ioa_bringdown(ioa_cfg, IPR_SHUTDOWN_NORMAL);
8692 spin_unlock_irqrestore(ioa_cfg->host->host_lock, host_lock_flags);
8693 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
8694 flush_scheduled_work();
8695 spin_lock_irqsave(ioa_cfg->host->host_lock, host_lock_flags);
8697 spin_lock(&ipr_driver_lock);
8698 list_del(&ioa_cfg->queue);
8699 spin_unlock(&ipr_driver_lock);
8701 if (ioa_cfg->sdt_state == ABORT_DUMP)
8702 ioa_cfg->sdt_state = WAIT_FOR_DUMP;
8703 spin_unlock_irqrestore(ioa_cfg->host->host_lock, host_lock_flags);
8705 ipr_free_all_resources(ioa_cfg);
8711 * ipr_remove - IOA hot plug remove entry point
8712 * @pdev: pci device struct
8714 * Adapter hot plug remove entry point.
8719 static void __devexit ipr_remove(struct pci_dev *pdev)
8721 struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev);
8725 ipr_remove_trace_file(&ioa_cfg->host->shost_dev.kobj,
8727 ipr_remove_dump_file(&ioa_cfg->host->shost_dev.kobj,
8729 scsi_remove_host(ioa_cfg->host);
8737 * ipr_probe - Adapter hot plug add entry point
8740 * 0 on success / non-zero on failure
8742 static int __devinit ipr_probe(struct pci_dev *pdev,
8743 const struct pci_device_id *dev_id)
8745 struct ipr_ioa_cfg *ioa_cfg;
8748 rc = ipr_probe_ioa(pdev, dev_id);
8753 ioa_cfg = pci_get_drvdata(pdev);
8754 rc = ipr_probe_ioa_part2(ioa_cfg);
8761 rc = scsi_add_host(ioa_cfg->host, &pdev->dev);
8768 rc = ipr_create_trace_file(&ioa_cfg->host->shost_dev.kobj,
8772 scsi_remove_host(ioa_cfg->host);
8777 rc = ipr_create_dump_file(&ioa_cfg->host->shost_dev.kobj,
8781 ipr_remove_trace_file(&ioa_cfg->host->shost_dev.kobj,
8783 scsi_remove_host(ioa_cfg->host);
8788 scsi_scan_host(ioa_cfg->host);
8789 ipr_scan_vsets(ioa_cfg);
8790 scsi_add_device(ioa_cfg->host, IPR_IOA_BUS, IPR_IOA_TARGET, IPR_IOA_LUN);
8791 ioa_cfg->allow_ml_add_del = 1;
8792 ioa_cfg->host->max_channel = IPR_VSET_BUS;
8793 schedule_work(&ioa_cfg->work_q);
8798 * ipr_shutdown - Shutdown handler.
8799 * @pdev: pci device struct
8801 * This function is invoked upon system shutdown/reboot. It will issue
8802 * an adapter shutdown to the adapter to flush the write cache.
8807 static void ipr_shutdown(struct pci_dev *pdev)
8809 struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev);
8810 unsigned long lock_flags = 0;
8812 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
8813 while(ioa_cfg->in_reset_reload) {
8814 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
8815 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
8816 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
8819 ipr_initiate_ioa_bringdown(ioa_cfg, IPR_SHUTDOWN_NORMAL);
8820 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
8821 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
8824 static struct pci_device_id ipr_pci_table[] __devinitdata = {
8825 { PCI_VENDOR_ID_MYLEX, PCI_DEVICE_ID_IBM_GEMSTONE,
8826 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_5702, 0, 0, 0 },
8827 { PCI_VENDOR_ID_MYLEX, PCI_DEVICE_ID_IBM_GEMSTONE,
8828 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_5703, 0, 0, 0 },
8829 { PCI_VENDOR_ID_MYLEX, PCI_DEVICE_ID_IBM_GEMSTONE,
8830 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_573D, 0, 0, 0 },
8831 { PCI_VENDOR_ID_MYLEX, PCI_DEVICE_ID_IBM_GEMSTONE,
8832 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_573E, 0, 0, 0 },
8833 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CITRINE,
8834 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_571B, 0, 0, 0 },
8835 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CITRINE,
8836 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572E, 0, 0, 0 },
8837 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CITRINE,
8838 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_571A, 0, 0, 0 },
8839 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CITRINE,
8840 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_575B, 0, 0,
8841 IPR_USE_LONG_TRANSOP_TIMEOUT },
8842 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_OBSIDIAN,
8843 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572A, 0, 0, 0 },
8844 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_OBSIDIAN,
8845 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572B, 0, 0,
8846 IPR_USE_LONG_TRANSOP_TIMEOUT },
8847 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_OBSIDIAN,
8848 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_575C, 0, 0,
8849 IPR_USE_LONG_TRANSOP_TIMEOUT },
8850 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN,
8851 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572A, 0, 0, 0 },
8852 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN,
8853 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572B, 0, 0,
8854 IPR_USE_LONG_TRANSOP_TIMEOUT},
8855 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN,
8856 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_575C, 0, 0,
8857 IPR_USE_LONG_TRANSOP_TIMEOUT },
8858 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN_E,
8859 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_574E, 0, 0,
8860 IPR_USE_LONG_TRANSOP_TIMEOUT },
8861 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN_E,
8862 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57B3, 0, 0, 0 },
8863 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN_E,
8864 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57B7, 0, 0,
8865 IPR_USE_LONG_TRANSOP_TIMEOUT | IPR_USE_PCI_WARM_RESET },
8866 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_SNIPE,
8867 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_2780, 0, 0, 0 },
8868 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_SCAMP,
8869 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_571E, 0, 0, 0 },
8870 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_SCAMP,
8871 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_571F, 0, 0,
8872 IPR_USE_LONG_TRANSOP_TIMEOUT },
8873 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_SCAMP,
8874 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572F, 0, 0,
8875 IPR_USE_LONG_TRANSOP_TIMEOUT },
8876 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_FPGA_E2,
8877 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57B5, 0, 0, 0 },
8878 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_FPGA_E2,
8879 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_574D, 0, 0, 0 },
8880 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_FPGA_E2,
8881 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57B2, 0, 0, 0 },
8882 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_ASIC_E2,
8883 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57B4, 0, 0, 0 },
8884 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_ASIC_E2,
8885 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57B1, 0, 0, 0 },
8886 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_ASIC_E2,
8887 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57C6, 0, 0, 0 },
8888 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_ASIC_E2,
8889 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_575D, 0, 0, 0 },
8890 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_ASIC_E2,
8891 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57CE, 0, 0, 0 },
8894 MODULE_DEVICE_TABLE(pci, ipr_pci_table);
8896 static struct pci_error_handlers ipr_err_handler = {
8897 .error_detected = ipr_pci_error_detected,
8898 .slot_reset = ipr_pci_slot_reset,
8901 static struct pci_driver ipr_driver = {
8903 .id_table = ipr_pci_table,
8905 .remove = __devexit_p(ipr_remove),
8906 .shutdown = ipr_shutdown,
8907 .err_handler = &ipr_err_handler,
8911 * ipr_halt_done - Shutdown prepare completion
8916 static void ipr_halt_done(struct ipr_cmnd *ipr_cmd)
8918 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
8920 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
8924 * ipr_halt - Issue shutdown prepare to all adapters
8927 * NOTIFY_OK on success / NOTIFY_DONE on failure
8929 static int ipr_halt(struct notifier_block *nb, ulong event, void *buf)
8931 struct ipr_cmnd *ipr_cmd;
8932 struct ipr_ioa_cfg *ioa_cfg;
8933 unsigned long flags = 0;
8935 if (event != SYS_RESTART && event != SYS_HALT && event != SYS_POWER_OFF)
8938 spin_lock(&ipr_driver_lock);
8940 list_for_each_entry(ioa_cfg, &ipr_ioa_head, queue) {
8941 spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
8942 if (!ioa_cfg->allow_cmds) {
8943 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
8947 ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg);
8948 ipr_cmd->ioarcb.res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE);
8949 ipr_cmd->ioarcb.cmd_pkt.request_type = IPR_RQTYPE_IOACMD;
8950 ipr_cmd->ioarcb.cmd_pkt.cdb[0] = IPR_IOA_SHUTDOWN;
8951 ipr_cmd->ioarcb.cmd_pkt.cdb[1] = IPR_SHUTDOWN_PREPARE_FOR_NORMAL;
8953 ipr_do_req(ipr_cmd, ipr_halt_done, ipr_timeout, IPR_DEVICE_RESET_TIMEOUT);
8954 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
8956 spin_unlock(&ipr_driver_lock);
8961 static struct notifier_block ipr_notifier = {
8966 * ipr_init - Module entry point
8969 * 0 on success / negative value on failure
8971 static int __init ipr_init(void)
8973 ipr_info("IBM Power RAID SCSI Device Driver version: %s %s\n",
8974 IPR_DRIVER_VERSION, IPR_DRIVER_DATE);
8976 register_reboot_notifier(&ipr_notifier);
8977 return pci_register_driver(&ipr_driver);
8981 * ipr_exit - Module unload
8983 * Module unload entry point.
8988 static void __exit ipr_exit(void)
8990 unregister_reboot_notifier(&ipr_notifier);
8991 pci_unregister_driver(&ipr_driver);
8994 module_init(ipr_init);
8995 module_exit(ipr_exit);