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/vmalloc.h>
64 #include <linux/ioport.h>
65 #include <linux/delay.h>
66 #include <linux/pci.h>
67 #include <linux/wait.h>
68 #include <linux/spinlock.h>
69 #include <linux/sched.h>
70 #include <linux/interrupt.h>
71 #include <linux/blkdev.h>
72 #include <linux/firmware.h>
73 #include <linux/module.h>
74 #include <linux/moduleparam.h>
75 #include <linux/libata.h>
76 #include <linux/hdreg.h>
77 #include <linux/reboot.h>
78 #include <linux/stringify.h>
81 #include <asm/processor.h>
82 #include <scsi/scsi.h>
83 #include <scsi/scsi_host.h>
84 #include <scsi/scsi_tcq.h>
85 #include <scsi/scsi_eh.h>
86 #include <scsi/scsi_cmnd.h>
92 static LIST_HEAD(ipr_ioa_head);
93 static unsigned int ipr_log_level = IPR_DEFAULT_LOG_LEVEL;
94 static unsigned int ipr_max_speed = 1;
95 static int ipr_testmode = 0;
96 static unsigned int ipr_fastfail = 0;
97 static unsigned int ipr_transop_timeout = 0;
98 static unsigned int ipr_debug = 0;
99 static unsigned int ipr_max_devs = IPR_DEFAULT_SIS64_DEVS;
100 static unsigned int ipr_dual_ioa_raid = 1;
101 static DEFINE_SPINLOCK(ipr_driver_lock);
103 /* This table describes the differences between DMA controller chips */
104 static const struct ipr_chip_cfg_t ipr_chip_cfg[] = {
105 { /* Gemstone, Citrine, Obsidian, and Obsidian-E */
107 .cache_line_size = 0x20,
109 .set_interrupt_mask_reg = 0x0022C,
110 .clr_interrupt_mask_reg = 0x00230,
111 .clr_interrupt_mask_reg32 = 0x00230,
112 .sense_interrupt_mask_reg = 0x0022C,
113 .sense_interrupt_mask_reg32 = 0x0022C,
114 .clr_interrupt_reg = 0x00228,
115 .clr_interrupt_reg32 = 0x00228,
116 .sense_interrupt_reg = 0x00224,
117 .sense_interrupt_reg32 = 0x00224,
118 .ioarrin_reg = 0x00404,
119 .sense_uproc_interrupt_reg = 0x00214,
120 .sense_uproc_interrupt_reg32 = 0x00214,
121 .set_uproc_interrupt_reg = 0x00214,
122 .set_uproc_interrupt_reg32 = 0x00214,
123 .clr_uproc_interrupt_reg = 0x00218,
124 .clr_uproc_interrupt_reg32 = 0x00218
127 { /* Snipe and Scamp */
129 .cache_line_size = 0x20,
131 .set_interrupt_mask_reg = 0x00288,
132 .clr_interrupt_mask_reg = 0x0028C,
133 .clr_interrupt_mask_reg32 = 0x0028C,
134 .sense_interrupt_mask_reg = 0x00288,
135 .sense_interrupt_mask_reg32 = 0x00288,
136 .clr_interrupt_reg = 0x00284,
137 .clr_interrupt_reg32 = 0x00284,
138 .sense_interrupt_reg = 0x00280,
139 .sense_interrupt_reg32 = 0x00280,
140 .ioarrin_reg = 0x00504,
141 .sense_uproc_interrupt_reg = 0x00290,
142 .sense_uproc_interrupt_reg32 = 0x00290,
143 .set_uproc_interrupt_reg = 0x00290,
144 .set_uproc_interrupt_reg32 = 0x00290,
145 .clr_uproc_interrupt_reg = 0x00294,
146 .clr_uproc_interrupt_reg32 = 0x00294
151 .cache_line_size = 0x20,
153 .set_interrupt_mask_reg = 0x00010,
154 .clr_interrupt_mask_reg = 0x00018,
155 .clr_interrupt_mask_reg32 = 0x0001C,
156 .sense_interrupt_mask_reg = 0x00010,
157 .sense_interrupt_mask_reg32 = 0x00014,
158 .clr_interrupt_reg = 0x00008,
159 .clr_interrupt_reg32 = 0x0000C,
160 .sense_interrupt_reg = 0x00000,
161 .sense_interrupt_reg32 = 0x00004,
162 .ioarrin_reg = 0x00070,
163 .sense_uproc_interrupt_reg = 0x00020,
164 .sense_uproc_interrupt_reg32 = 0x00024,
165 .set_uproc_interrupt_reg = 0x00020,
166 .set_uproc_interrupt_reg32 = 0x00024,
167 .clr_uproc_interrupt_reg = 0x00028,
168 .clr_uproc_interrupt_reg32 = 0x0002C,
169 .init_feedback_reg = 0x0005C,
170 .dump_addr_reg = 0x00064,
171 .dump_data_reg = 0x00068,
172 .endian_swap_reg = 0x00084
177 static const struct ipr_chip_t ipr_chip[] = {
178 { PCI_VENDOR_ID_MYLEX, PCI_DEVICE_ID_IBM_GEMSTONE, IPR_USE_LSI, IPR_SIS32, IPR_PCI_CFG, &ipr_chip_cfg[0] },
179 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CITRINE, IPR_USE_LSI, IPR_SIS32, IPR_PCI_CFG, &ipr_chip_cfg[0] },
180 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_OBSIDIAN, IPR_USE_LSI, IPR_SIS32, IPR_PCI_CFG, &ipr_chip_cfg[0] },
181 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN, IPR_USE_LSI, IPR_SIS32, IPR_PCI_CFG, &ipr_chip_cfg[0] },
182 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN_E, IPR_USE_MSI, IPR_SIS32, IPR_PCI_CFG, &ipr_chip_cfg[0] },
183 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_SNIPE, IPR_USE_LSI, IPR_SIS32, IPR_PCI_CFG, &ipr_chip_cfg[1] },
184 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_SCAMP, IPR_USE_LSI, IPR_SIS32, IPR_PCI_CFG, &ipr_chip_cfg[1] },
185 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_FPGA_E2, IPR_USE_MSI, IPR_SIS64, IPR_MMIO, &ipr_chip_cfg[2] },
186 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE, IPR_USE_MSI, IPR_SIS64, IPR_MMIO, &ipr_chip_cfg[2] }
189 static int ipr_max_bus_speeds [] = {
190 IPR_80MBs_SCSI_RATE, IPR_U160_SCSI_RATE, IPR_U320_SCSI_RATE
193 MODULE_AUTHOR("Brian King <brking@us.ibm.com>");
194 MODULE_DESCRIPTION("IBM Power RAID SCSI Adapter Driver");
195 module_param_named(max_speed, ipr_max_speed, uint, 0);
196 MODULE_PARM_DESC(max_speed, "Maximum bus speed (0-2). Default: 1=U160. Speeds: 0=80 MB/s, 1=U160, 2=U320");
197 module_param_named(log_level, ipr_log_level, uint, 0);
198 MODULE_PARM_DESC(log_level, "Set to 0 - 4 for increasing verbosity of device driver");
199 module_param_named(testmode, ipr_testmode, int, 0);
200 MODULE_PARM_DESC(testmode, "DANGEROUS!!! Allows unsupported configurations");
201 module_param_named(fastfail, ipr_fastfail, int, S_IRUGO | S_IWUSR);
202 MODULE_PARM_DESC(fastfail, "Reduce timeouts and retries");
203 module_param_named(transop_timeout, ipr_transop_timeout, int, 0);
204 MODULE_PARM_DESC(transop_timeout, "Time in seconds to wait for adapter to come operational (default: 300)");
205 module_param_named(debug, ipr_debug, int, S_IRUGO | S_IWUSR);
206 MODULE_PARM_DESC(debug, "Enable device driver debugging logging. Set to 1 to enable. (default: 0)");
207 module_param_named(dual_ioa_raid, ipr_dual_ioa_raid, int, 0);
208 MODULE_PARM_DESC(dual_ioa_raid, "Enable dual adapter RAID support. Set to 1 to enable. (default: 1)");
209 module_param_named(max_devs, ipr_max_devs, int, 0);
210 MODULE_PARM_DESC(max_devs, "Specify the maximum number of physical devices. "
211 "[Default=" __stringify(IPR_DEFAULT_SIS64_DEVS) "]");
212 MODULE_LICENSE("GPL");
213 MODULE_VERSION(IPR_DRIVER_VERSION);
215 /* A constant array of IOASCs/URCs/Error Messages */
217 struct ipr_error_table_t ipr_error_table[] = {
218 {0x00000000, 1, IPR_DEFAULT_LOG_LEVEL,
219 "8155: An unknown error was received"},
221 "Soft underlength error"},
223 "Command to be cancelled not found"},
225 "Qualified success"},
226 {0x01080000, 1, IPR_DEFAULT_LOG_LEVEL,
227 "FFFE: Soft device bus error recovered by the IOA"},
228 {0x01088100, 0, IPR_DEFAULT_LOG_LEVEL,
229 "4101: Soft device bus fabric error"},
230 {0x01100100, 0, IPR_DEFAULT_LOG_LEVEL,
231 "FFFC: Logical block guard error recovered by the device"},
232 {0x01100300, 0, IPR_DEFAULT_LOG_LEVEL,
233 "FFFC: Logical block reference tag error recovered by the device"},
234 {0x01108300, 0, IPR_DEFAULT_LOG_LEVEL,
235 "4171: Recovered scatter list tag / sequence number error"},
236 {0x01109000, 0, IPR_DEFAULT_LOG_LEVEL,
237 "FF3D: Recovered logical block CRC error on IOA to Host transfer"},
238 {0x01109200, 0, IPR_DEFAULT_LOG_LEVEL,
239 "4171: Recovered logical block sequence number error on IOA to Host transfer"},
240 {0x0110A000, 0, IPR_DEFAULT_LOG_LEVEL,
241 "FFFD: Recovered logical block reference tag error detected by the IOA"},
242 {0x0110A100, 0, IPR_DEFAULT_LOG_LEVEL,
243 "FFFD: Logical block guard error recovered by the IOA"},
244 {0x01170600, 0, IPR_DEFAULT_LOG_LEVEL,
245 "FFF9: Device sector reassign successful"},
246 {0x01170900, 0, IPR_DEFAULT_LOG_LEVEL,
247 "FFF7: Media error recovered by device rewrite procedures"},
248 {0x01180200, 0, IPR_DEFAULT_LOG_LEVEL,
249 "7001: IOA sector reassignment successful"},
250 {0x01180500, 0, IPR_DEFAULT_LOG_LEVEL,
251 "FFF9: Soft media error. Sector reassignment recommended"},
252 {0x01180600, 0, IPR_DEFAULT_LOG_LEVEL,
253 "FFF7: Media error recovered by IOA rewrite procedures"},
254 {0x01418000, 0, IPR_DEFAULT_LOG_LEVEL,
255 "FF3D: Soft PCI bus error recovered by the IOA"},
256 {0x01440000, 1, IPR_DEFAULT_LOG_LEVEL,
257 "FFF6: Device hardware error recovered by the IOA"},
258 {0x01448100, 0, IPR_DEFAULT_LOG_LEVEL,
259 "FFF6: Device hardware error recovered by the device"},
260 {0x01448200, 1, IPR_DEFAULT_LOG_LEVEL,
261 "FF3D: Soft IOA error recovered by the IOA"},
262 {0x01448300, 0, IPR_DEFAULT_LOG_LEVEL,
263 "FFFA: Undefined device response recovered by the IOA"},
264 {0x014A0000, 1, IPR_DEFAULT_LOG_LEVEL,
265 "FFF6: Device bus error, message or command phase"},
266 {0x014A8000, 0, IPR_DEFAULT_LOG_LEVEL,
267 "FFFE: Task Management Function failed"},
268 {0x015D0000, 0, IPR_DEFAULT_LOG_LEVEL,
269 "FFF6: Failure prediction threshold exceeded"},
270 {0x015D9200, 0, IPR_DEFAULT_LOG_LEVEL,
271 "8009: Impending cache battery pack failure"},
273 "34FF: Disk device format in progress"},
274 {0x02048000, 0, IPR_DEFAULT_LOG_LEVEL,
275 "9070: IOA requested reset"},
277 "Synchronization required"},
279 "No ready, IOA shutdown"},
281 "Not ready, IOA has been shutdown"},
282 {0x02670100, 0, IPR_DEFAULT_LOG_LEVEL,
283 "3020: Storage subsystem configuration error"},
285 "FFF5: Medium error, data unreadable, recommend reassign"},
287 "7000: Medium error, data unreadable, do not reassign"},
288 {0x03310000, 0, IPR_DEFAULT_LOG_LEVEL,
289 "FFF3: Disk media format bad"},
290 {0x04050000, 0, IPR_DEFAULT_LOG_LEVEL,
291 "3002: Addressed device failed to respond to selection"},
292 {0x04080000, 1, IPR_DEFAULT_LOG_LEVEL,
293 "3100: Device bus error"},
294 {0x04080100, 0, IPR_DEFAULT_LOG_LEVEL,
295 "3109: IOA timed out a device command"},
297 "3120: SCSI bus is not operational"},
298 {0x04088100, 0, IPR_DEFAULT_LOG_LEVEL,
299 "4100: Hard device bus fabric error"},
300 {0x04100100, 0, IPR_DEFAULT_LOG_LEVEL,
301 "310C: Logical block guard error detected by the device"},
302 {0x04100300, 0, IPR_DEFAULT_LOG_LEVEL,
303 "310C: Logical block reference tag error detected by the device"},
304 {0x04108300, 1, IPR_DEFAULT_LOG_LEVEL,
305 "4170: Scatter list tag / sequence number error"},
306 {0x04109000, 1, IPR_DEFAULT_LOG_LEVEL,
307 "8150: Logical block CRC error on IOA to Host transfer"},
308 {0x04109200, 1, IPR_DEFAULT_LOG_LEVEL,
309 "4170: Logical block sequence number error on IOA to Host transfer"},
310 {0x0410A000, 0, IPR_DEFAULT_LOG_LEVEL,
311 "310D: Logical block reference tag error detected by the IOA"},
312 {0x0410A100, 0, IPR_DEFAULT_LOG_LEVEL,
313 "310D: Logical block guard error detected by the IOA"},
314 {0x04118000, 0, IPR_DEFAULT_LOG_LEVEL,
315 "9000: IOA reserved area data check"},
316 {0x04118100, 0, IPR_DEFAULT_LOG_LEVEL,
317 "9001: IOA reserved area invalid data pattern"},
318 {0x04118200, 0, IPR_DEFAULT_LOG_LEVEL,
319 "9002: IOA reserved area LRC error"},
320 {0x04118300, 1, IPR_DEFAULT_LOG_LEVEL,
321 "Hardware Error, IOA metadata access error"},
322 {0x04320000, 0, IPR_DEFAULT_LOG_LEVEL,
323 "102E: Out of alternate sectors for disk storage"},
324 {0x04330000, 1, IPR_DEFAULT_LOG_LEVEL,
325 "FFF4: Data transfer underlength error"},
326 {0x04338000, 1, IPR_DEFAULT_LOG_LEVEL,
327 "FFF4: Data transfer overlength error"},
328 {0x043E0100, 0, IPR_DEFAULT_LOG_LEVEL,
329 "3400: Logical unit failure"},
330 {0x04408500, 0, IPR_DEFAULT_LOG_LEVEL,
331 "FFF4: Device microcode is corrupt"},
332 {0x04418000, 1, IPR_DEFAULT_LOG_LEVEL,
333 "8150: PCI bus error"},
335 "Unsupported device bus message received"},
336 {0x04440000, 1, IPR_DEFAULT_LOG_LEVEL,
337 "FFF4: Disk device problem"},
338 {0x04448200, 1, IPR_DEFAULT_LOG_LEVEL,
339 "8150: Permanent IOA failure"},
340 {0x04448300, 0, IPR_DEFAULT_LOG_LEVEL,
341 "3010: Disk device returned wrong response to IOA"},
342 {0x04448400, 0, IPR_DEFAULT_LOG_LEVEL,
343 "8151: IOA microcode error"},
345 "Device bus status error"},
346 {0x04448600, 0, IPR_DEFAULT_LOG_LEVEL,
347 "8157: IOA error requiring IOA reset to recover"},
349 "ATA device status error"},
351 "Message reject received from the device"},
352 {0x04449200, 0, IPR_DEFAULT_LOG_LEVEL,
353 "8008: A permanent cache battery pack failure occurred"},
354 {0x0444A000, 0, IPR_DEFAULT_LOG_LEVEL,
355 "9090: Disk unit has been modified after the last known status"},
356 {0x0444A200, 0, IPR_DEFAULT_LOG_LEVEL,
357 "9081: IOA detected device error"},
358 {0x0444A300, 0, IPR_DEFAULT_LOG_LEVEL,
359 "9082: IOA detected device error"},
360 {0x044A0000, 1, IPR_DEFAULT_LOG_LEVEL,
361 "3110: Device bus error, message or command phase"},
362 {0x044A8000, 1, IPR_DEFAULT_LOG_LEVEL,
363 "3110: SAS Command / Task Management Function failed"},
364 {0x04670400, 0, IPR_DEFAULT_LOG_LEVEL,
365 "9091: Incorrect hardware configuration change has been detected"},
366 {0x04678000, 0, IPR_DEFAULT_LOG_LEVEL,
367 "9073: Invalid multi-adapter configuration"},
368 {0x04678100, 0, IPR_DEFAULT_LOG_LEVEL,
369 "4010: Incorrect connection between cascaded expanders"},
370 {0x04678200, 0, IPR_DEFAULT_LOG_LEVEL,
371 "4020: Connections exceed IOA design limits"},
372 {0x04678300, 0, IPR_DEFAULT_LOG_LEVEL,
373 "4030: Incorrect multipath connection"},
374 {0x04679000, 0, IPR_DEFAULT_LOG_LEVEL,
375 "4110: Unsupported enclosure function"},
376 {0x046E0000, 0, IPR_DEFAULT_LOG_LEVEL,
377 "FFF4: Command to logical unit failed"},
379 "Illegal request, invalid request type or request packet"},
381 "Illegal request, invalid resource handle"},
383 "Illegal request, commands not allowed to this device"},
385 "Illegal request, command not allowed to a secondary adapter"},
387 "Illegal request, command not allowed to a non-optimized resource"},
389 "Illegal request, invalid field in parameter list"},
391 "Illegal request, parameter not supported"},
393 "Illegal request, parameter value invalid"},
395 "Illegal request, command sequence error"},
397 "Illegal request, dual adapter support not enabled"},
398 {0x06040500, 0, IPR_DEFAULT_LOG_LEVEL,
399 "9031: Array protection temporarily suspended, protection resuming"},
400 {0x06040600, 0, IPR_DEFAULT_LOG_LEVEL,
401 "9040: Array protection temporarily suspended, protection resuming"},
402 {0x06288000, 0, IPR_DEFAULT_LOG_LEVEL,
403 "3140: Device bus not ready to ready transition"},
404 {0x06290000, 0, IPR_DEFAULT_LOG_LEVEL,
405 "FFFB: SCSI bus was reset"},
407 "FFFE: SCSI bus transition to single ended"},
409 "FFFE: SCSI bus transition to LVD"},
410 {0x06298000, 0, IPR_DEFAULT_LOG_LEVEL,
411 "FFFB: SCSI bus was reset by another initiator"},
412 {0x063F0300, 0, IPR_DEFAULT_LOG_LEVEL,
413 "3029: A device replacement has occurred"},
414 {0x064C8000, 0, IPR_DEFAULT_LOG_LEVEL,
415 "9051: IOA cache data exists for a missing or failed device"},
416 {0x064C8100, 0, IPR_DEFAULT_LOG_LEVEL,
417 "9055: Auxiliary cache IOA contains cache data needed by the primary IOA"},
418 {0x06670100, 0, IPR_DEFAULT_LOG_LEVEL,
419 "9025: Disk unit is not supported at its physical location"},
420 {0x06670600, 0, IPR_DEFAULT_LOG_LEVEL,
421 "3020: IOA detected a SCSI bus configuration error"},
422 {0x06678000, 0, IPR_DEFAULT_LOG_LEVEL,
423 "3150: SCSI bus configuration error"},
424 {0x06678100, 0, IPR_DEFAULT_LOG_LEVEL,
425 "9074: Asymmetric advanced function disk configuration"},
426 {0x06678300, 0, IPR_DEFAULT_LOG_LEVEL,
427 "4040: Incomplete multipath connection between IOA and enclosure"},
428 {0x06678400, 0, IPR_DEFAULT_LOG_LEVEL,
429 "4041: Incomplete multipath connection between enclosure and device"},
430 {0x06678500, 0, IPR_DEFAULT_LOG_LEVEL,
431 "9075: Incomplete multipath connection between IOA and remote IOA"},
432 {0x06678600, 0, IPR_DEFAULT_LOG_LEVEL,
433 "9076: Configuration error, missing remote IOA"},
434 {0x06679100, 0, IPR_DEFAULT_LOG_LEVEL,
435 "4050: Enclosure does not support a required multipath function"},
436 {0x06690000, 0, IPR_DEFAULT_LOG_LEVEL,
437 "4070: Logically bad block written on device"},
438 {0x06690200, 0, IPR_DEFAULT_LOG_LEVEL,
439 "9041: Array protection temporarily suspended"},
440 {0x06698200, 0, IPR_DEFAULT_LOG_LEVEL,
441 "9042: Corrupt array parity detected on specified device"},
442 {0x066B0200, 0, IPR_DEFAULT_LOG_LEVEL,
443 "9030: Array no longer protected due to missing or failed disk unit"},
444 {0x066B8000, 0, IPR_DEFAULT_LOG_LEVEL,
445 "9071: Link operational transition"},
446 {0x066B8100, 0, IPR_DEFAULT_LOG_LEVEL,
447 "9072: Link not operational transition"},
448 {0x066B8200, 0, IPR_DEFAULT_LOG_LEVEL,
449 "9032: Array exposed but still protected"},
450 {0x066B8300, 0, IPR_DEFAULT_LOG_LEVEL + 1,
451 "70DD: Device forced failed by disrupt device command"},
452 {0x066B9100, 0, IPR_DEFAULT_LOG_LEVEL,
453 "4061: Multipath redundancy level got better"},
454 {0x066B9200, 0, IPR_DEFAULT_LOG_LEVEL,
455 "4060: Multipath redundancy level got worse"},
457 "Failure due to other device"},
458 {0x07278000, 0, IPR_DEFAULT_LOG_LEVEL,
459 "9008: IOA does not support functions expected by devices"},
460 {0x07278100, 0, IPR_DEFAULT_LOG_LEVEL,
461 "9010: Cache data associated with attached devices cannot be found"},
462 {0x07278200, 0, IPR_DEFAULT_LOG_LEVEL,
463 "9011: Cache data belongs to devices other than those attached"},
464 {0x07278400, 0, IPR_DEFAULT_LOG_LEVEL,
465 "9020: Array missing 2 or more devices with only 1 device present"},
466 {0x07278500, 0, IPR_DEFAULT_LOG_LEVEL,
467 "9021: Array missing 2 or more devices with 2 or more devices present"},
468 {0x07278600, 0, IPR_DEFAULT_LOG_LEVEL,
469 "9022: Exposed array is missing a required device"},
470 {0x07278700, 0, IPR_DEFAULT_LOG_LEVEL,
471 "9023: Array member(s) not at required physical locations"},
472 {0x07278800, 0, IPR_DEFAULT_LOG_LEVEL,
473 "9024: Array not functional due to present hardware configuration"},
474 {0x07278900, 0, IPR_DEFAULT_LOG_LEVEL,
475 "9026: Array not functional due to present hardware configuration"},
476 {0x07278A00, 0, IPR_DEFAULT_LOG_LEVEL,
477 "9027: Array is missing a device and parity is out of sync"},
478 {0x07278B00, 0, IPR_DEFAULT_LOG_LEVEL,
479 "9028: Maximum number of arrays already exist"},
480 {0x07278C00, 0, IPR_DEFAULT_LOG_LEVEL,
481 "9050: Required cache data cannot be located for a disk unit"},
482 {0x07278D00, 0, IPR_DEFAULT_LOG_LEVEL,
483 "9052: Cache data exists for a device that has been modified"},
484 {0x07278F00, 0, IPR_DEFAULT_LOG_LEVEL,
485 "9054: IOA resources not available due to previous problems"},
486 {0x07279100, 0, IPR_DEFAULT_LOG_LEVEL,
487 "9092: Disk unit requires initialization before use"},
488 {0x07279200, 0, IPR_DEFAULT_LOG_LEVEL,
489 "9029: Incorrect hardware configuration change has been detected"},
490 {0x07279600, 0, IPR_DEFAULT_LOG_LEVEL,
491 "9060: One or more disk pairs are missing from an array"},
492 {0x07279700, 0, IPR_DEFAULT_LOG_LEVEL,
493 "9061: One or more disks are missing from an array"},
494 {0x07279800, 0, IPR_DEFAULT_LOG_LEVEL,
495 "9062: One or more disks are missing from an array"},
496 {0x07279900, 0, IPR_DEFAULT_LOG_LEVEL,
497 "9063: Maximum number of functional arrays has been exceeded"},
499 "Aborted command, invalid descriptor"},
501 "Command terminated by host"}
504 static const struct ipr_ses_table_entry ipr_ses_table[] = {
505 { "2104-DL1 ", "XXXXXXXXXXXXXXXX", 80 },
506 { "2104-TL1 ", "XXXXXXXXXXXXXXXX", 80 },
507 { "HSBP07M P U2SCSI", "XXXXXXXXXXXXXXXX", 80 }, /* Hidive 7 slot */
508 { "HSBP05M P U2SCSI", "XXXXXXXXXXXXXXXX", 80 }, /* Hidive 5 slot */
509 { "HSBP05M S U2SCSI", "XXXXXXXXXXXXXXXX", 80 }, /* Bowtie */
510 { "HSBP06E ASU2SCSI", "XXXXXXXXXXXXXXXX", 80 }, /* MartinFenning */
511 { "2104-DU3 ", "XXXXXXXXXXXXXXXX", 160 },
512 { "2104-TU3 ", "XXXXXXXXXXXXXXXX", 160 },
513 { "HSBP04C RSU2SCSI", "XXXXXXX*XXXXXXXX", 160 },
514 { "HSBP06E RSU2SCSI", "XXXXXXX*XXXXXXXX", 160 },
515 { "St V1S2 ", "XXXXXXXXXXXXXXXX", 160 },
516 { "HSBPD4M PU3SCSI", "XXXXXXX*XXXXXXXX", 160 },
517 { "VSBPD1H U3SCSI", "XXXXXXX*XXXXXXXX", 160 }
521 * Function Prototypes
523 static int ipr_reset_alert(struct ipr_cmnd *);
524 static void ipr_process_ccn(struct ipr_cmnd *);
525 static void ipr_process_error(struct ipr_cmnd *);
526 static void ipr_reset_ioa_job(struct ipr_cmnd *);
527 static void ipr_initiate_ioa_reset(struct ipr_ioa_cfg *,
528 enum ipr_shutdown_type);
530 #ifdef CONFIG_SCSI_IPR_TRACE
532 * ipr_trc_hook - Add a trace entry to the driver trace
533 * @ipr_cmd: ipr command struct
535 * @add_data: additional data
540 static void ipr_trc_hook(struct ipr_cmnd *ipr_cmd,
541 u8 type, u32 add_data)
543 struct ipr_trace_entry *trace_entry;
544 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
546 trace_entry = &ioa_cfg->trace[ioa_cfg->trace_index++];
547 trace_entry->time = jiffies;
548 trace_entry->op_code = ipr_cmd->ioarcb.cmd_pkt.cdb[0];
549 trace_entry->type = type;
550 if (ipr_cmd->ioa_cfg->sis64)
551 trace_entry->ata_op_code = ipr_cmd->i.ata_ioadl.regs.command;
553 trace_entry->ata_op_code = ipr_cmd->ioarcb.u.add_data.u.regs.command;
554 trace_entry->cmd_index = ipr_cmd->cmd_index & 0xff;
555 trace_entry->res_handle = ipr_cmd->ioarcb.res_handle;
556 trace_entry->u.add_data = add_data;
559 #define ipr_trc_hook(ipr_cmd, type, add_data) do { } while(0)
563 * ipr_reinit_ipr_cmnd - Re-initialize an IPR Cmnd block for reuse
564 * @ipr_cmd: ipr command struct
569 static void ipr_reinit_ipr_cmnd(struct ipr_cmnd *ipr_cmd)
571 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
572 struct ipr_ioasa *ioasa = &ipr_cmd->s.ioasa;
573 struct ipr_ioasa64 *ioasa64 = &ipr_cmd->s.ioasa64;
574 dma_addr_t dma_addr = ipr_cmd->dma_addr;
576 memset(&ioarcb->cmd_pkt, 0, sizeof(struct ipr_cmd_pkt));
577 ioarcb->data_transfer_length = 0;
578 ioarcb->read_data_transfer_length = 0;
579 ioarcb->ioadl_len = 0;
580 ioarcb->read_ioadl_len = 0;
582 if (ipr_cmd->ioa_cfg->sis64) {
583 ioarcb->u.sis64_addr_data.data_ioadl_addr =
584 cpu_to_be64(dma_addr + offsetof(struct ipr_cmnd, i.ioadl64));
585 ioasa64->u.gata.status = 0;
587 ioarcb->write_ioadl_addr =
588 cpu_to_be32(dma_addr + offsetof(struct ipr_cmnd, i.ioadl));
589 ioarcb->read_ioadl_addr = ioarcb->write_ioadl_addr;
590 ioasa->u.gata.status = 0;
593 ioasa->hdr.ioasc = 0;
594 ioasa->hdr.residual_data_len = 0;
595 ipr_cmd->scsi_cmd = NULL;
597 ipr_cmd->sense_buffer[0] = 0;
598 ipr_cmd->dma_use_sg = 0;
602 * ipr_init_ipr_cmnd - Initialize an IPR Cmnd block
603 * @ipr_cmd: ipr command struct
608 static void ipr_init_ipr_cmnd(struct ipr_cmnd *ipr_cmd)
610 ipr_reinit_ipr_cmnd(ipr_cmd);
611 ipr_cmd->u.scratch = 0;
612 ipr_cmd->sibling = NULL;
613 init_timer(&ipr_cmd->timer);
617 * ipr_get_free_ipr_cmnd - Get a free IPR Cmnd block
618 * @ioa_cfg: ioa config struct
621 * pointer to ipr command struct
624 struct ipr_cmnd *ipr_get_free_ipr_cmnd(struct ipr_ioa_cfg *ioa_cfg)
626 struct ipr_cmnd *ipr_cmd;
628 ipr_cmd = list_entry(ioa_cfg->free_q.next, struct ipr_cmnd, queue);
629 list_del(&ipr_cmd->queue);
630 ipr_init_ipr_cmnd(ipr_cmd);
636 * ipr_mask_and_clear_interrupts - Mask all and clear specified interrupts
637 * @ioa_cfg: ioa config struct
638 * @clr_ints: interrupts to clear
640 * This function masks all interrupts on the adapter, then clears the
641 * interrupts specified in the mask
646 static void ipr_mask_and_clear_interrupts(struct ipr_ioa_cfg *ioa_cfg,
649 volatile u32 int_reg;
651 /* Stop new interrupts */
652 ioa_cfg->allow_interrupts = 0;
654 /* Set interrupt mask to stop all new interrupts */
656 writeq(~0, ioa_cfg->regs.set_interrupt_mask_reg);
658 writel(~0, ioa_cfg->regs.set_interrupt_mask_reg);
660 /* Clear any pending interrupts */
662 writel(~0, ioa_cfg->regs.clr_interrupt_reg);
663 writel(clr_ints, ioa_cfg->regs.clr_interrupt_reg32);
664 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg);
668 * ipr_save_pcix_cmd_reg - Save PCI-X command register
669 * @ioa_cfg: ioa config struct
672 * 0 on success / -EIO on failure
674 static int ipr_save_pcix_cmd_reg(struct ipr_ioa_cfg *ioa_cfg)
676 int pcix_cmd_reg = pci_find_capability(ioa_cfg->pdev, PCI_CAP_ID_PCIX);
678 if (pcix_cmd_reg == 0)
681 if (pci_read_config_word(ioa_cfg->pdev, pcix_cmd_reg + PCI_X_CMD,
682 &ioa_cfg->saved_pcix_cmd_reg) != PCIBIOS_SUCCESSFUL) {
683 dev_err(&ioa_cfg->pdev->dev, "Failed to save PCI-X command register\n");
687 ioa_cfg->saved_pcix_cmd_reg |= PCI_X_CMD_DPERR_E | PCI_X_CMD_ERO;
692 * ipr_set_pcix_cmd_reg - Setup PCI-X command register
693 * @ioa_cfg: ioa config struct
696 * 0 on success / -EIO on failure
698 static int ipr_set_pcix_cmd_reg(struct ipr_ioa_cfg *ioa_cfg)
700 int pcix_cmd_reg = pci_find_capability(ioa_cfg->pdev, PCI_CAP_ID_PCIX);
703 if (pci_write_config_word(ioa_cfg->pdev, pcix_cmd_reg + PCI_X_CMD,
704 ioa_cfg->saved_pcix_cmd_reg) != PCIBIOS_SUCCESSFUL) {
705 dev_err(&ioa_cfg->pdev->dev, "Failed to setup PCI-X command register\n");
714 * ipr_sata_eh_done - done function for aborted SATA commands
715 * @ipr_cmd: ipr command struct
717 * This function is invoked for ops generated to SATA
718 * devices which are being aborted.
723 static void ipr_sata_eh_done(struct ipr_cmnd *ipr_cmd)
725 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
726 struct ata_queued_cmd *qc = ipr_cmd->qc;
727 struct ipr_sata_port *sata_port = qc->ap->private_data;
729 qc->err_mask |= AC_ERR_OTHER;
730 sata_port->ioasa.status |= ATA_BUSY;
731 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
736 * ipr_scsi_eh_done - mid-layer done function for aborted ops
737 * @ipr_cmd: ipr command struct
739 * This function is invoked by the interrupt handler for
740 * ops generated by the SCSI mid-layer which are being aborted.
745 static void ipr_scsi_eh_done(struct ipr_cmnd *ipr_cmd)
747 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
748 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd;
750 scsi_cmd->result |= (DID_ERROR << 16);
752 scsi_dma_unmap(ipr_cmd->scsi_cmd);
753 scsi_cmd->scsi_done(scsi_cmd);
754 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
758 * ipr_fail_all_ops - Fails all outstanding ops.
759 * @ioa_cfg: ioa config struct
761 * This function fails all outstanding ops.
766 static void ipr_fail_all_ops(struct ipr_ioa_cfg *ioa_cfg)
768 struct ipr_cmnd *ipr_cmd, *temp;
771 list_for_each_entry_safe(ipr_cmd, temp, &ioa_cfg->pending_q, queue) {
772 list_del(&ipr_cmd->queue);
774 ipr_cmd->s.ioasa.hdr.ioasc = cpu_to_be32(IPR_IOASC_IOA_WAS_RESET);
775 ipr_cmd->s.ioasa.hdr.ilid = cpu_to_be32(IPR_DRIVER_ILID);
777 if (ipr_cmd->scsi_cmd)
778 ipr_cmd->done = ipr_scsi_eh_done;
779 else if (ipr_cmd->qc)
780 ipr_cmd->done = ipr_sata_eh_done;
782 ipr_trc_hook(ipr_cmd, IPR_TRACE_FINISH, IPR_IOASC_IOA_WAS_RESET);
783 del_timer(&ipr_cmd->timer);
784 ipr_cmd->done(ipr_cmd);
791 * ipr_send_command - Send driver initiated requests.
792 * @ipr_cmd: ipr command struct
794 * This function sends a command to the adapter using the correct write call.
795 * In the case of sis64, calculate the ioarcb size required. Then or in the
801 static void ipr_send_command(struct ipr_cmnd *ipr_cmd)
803 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
804 dma_addr_t send_dma_addr = ipr_cmd->dma_addr;
806 if (ioa_cfg->sis64) {
807 /* The default size is 256 bytes */
808 send_dma_addr |= 0x1;
810 /* If the number of ioadls * size of ioadl > 128 bytes,
811 then use a 512 byte ioarcb */
812 if (ipr_cmd->dma_use_sg * sizeof(struct ipr_ioadl64_desc) > 128 )
813 send_dma_addr |= 0x4;
814 writeq(send_dma_addr, ioa_cfg->regs.ioarrin_reg);
816 writel(send_dma_addr, ioa_cfg->regs.ioarrin_reg);
820 * ipr_do_req - Send driver initiated requests.
821 * @ipr_cmd: ipr command struct
822 * @done: done function
823 * @timeout_func: timeout function
824 * @timeout: timeout value
826 * This function sends the specified command to the adapter with the
827 * timeout given. The done function is invoked on command completion.
832 static void ipr_do_req(struct ipr_cmnd *ipr_cmd,
833 void (*done) (struct ipr_cmnd *),
834 void (*timeout_func) (struct ipr_cmnd *), u32 timeout)
836 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
838 list_add_tail(&ipr_cmd->queue, &ioa_cfg->pending_q);
840 ipr_cmd->done = done;
842 ipr_cmd->timer.data = (unsigned long) ipr_cmd;
843 ipr_cmd->timer.expires = jiffies + timeout;
844 ipr_cmd->timer.function = (void (*)(unsigned long))timeout_func;
846 add_timer(&ipr_cmd->timer);
848 ipr_trc_hook(ipr_cmd, IPR_TRACE_START, 0);
852 ipr_send_command(ipr_cmd);
856 * ipr_internal_cmd_done - Op done function for an internally generated op.
857 * @ipr_cmd: ipr command struct
859 * This function is the op done function for an internally generated,
860 * blocking op. It simply wakes the sleeping thread.
865 static void ipr_internal_cmd_done(struct ipr_cmnd *ipr_cmd)
867 if (ipr_cmd->sibling)
868 ipr_cmd->sibling = NULL;
870 complete(&ipr_cmd->completion);
874 * ipr_init_ioadl - initialize the ioadl for the correct SIS type
875 * @ipr_cmd: ipr command struct
876 * @dma_addr: dma address
877 * @len: transfer length
878 * @flags: ioadl flag value
880 * This function initializes an ioadl in the case where there is only a single
886 static void ipr_init_ioadl(struct ipr_cmnd *ipr_cmd, dma_addr_t dma_addr,
889 struct ipr_ioadl_desc *ioadl = ipr_cmd->i.ioadl;
890 struct ipr_ioadl64_desc *ioadl64 = ipr_cmd->i.ioadl64;
892 ipr_cmd->dma_use_sg = 1;
894 if (ipr_cmd->ioa_cfg->sis64) {
895 ioadl64->flags = cpu_to_be32(flags);
896 ioadl64->data_len = cpu_to_be32(len);
897 ioadl64->address = cpu_to_be64(dma_addr);
899 ipr_cmd->ioarcb.ioadl_len =
900 cpu_to_be32(sizeof(struct ipr_ioadl64_desc));
901 ipr_cmd->ioarcb.data_transfer_length = cpu_to_be32(len);
903 ioadl->flags_and_data_len = cpu_to_be32(flags | len);
904 ioadl->address = cpu_to_be32(dma_addr);
906 if (flags == IPR_IOADL_FLAGS_READ_LAST) {
907 ipr_cmd->ioarcb.read_ioadl_len =
908 cpu_to_be32(sizeof(struct ipr_ioadl_desc));
909 ipr_cmd->ioarcb.read_data_transfer_length = cpu_to_be32(len);
911 ipr_cmd->ioarcb.ioadl_len =
912 cpu_to_be32(sizeof(struct ipr_ioadl_desc));
913 ipr_cmd->ioarcb.data_transfer_length = cpu_to_be32(len);
919 * ipr_send_blocking_cmd - Send command and sleep on its completion.
920 * @ipr_cmd: ipr command struct
921 * @timeout_func: function to invoke if command times out
927 static void ipr_send_blocking_cmd(struct ipr_cmnd *ipr_cmd,
928 void (*timeout_func) (struct ipr_cmnd *ipr_cmd),
931 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
933 init_completion(&ipr_cmd->completion);
934 ipr_do_req(ipr_cmd, ipr_internal_cmd_done, timeout_func, timeout);
936 spin_unlock_irq(ioa_cfg->host->host_lock);
937 wait_for_completion(&ipr_cmd->completion);
938 spin_lock_irq(ioa_cfg->host->host_lock);
942 * ipr_send_hcam - Send an HCAM to the adapter.
943 * @ioa_cfg: ioa config struct
945 * @hostrcb: hostrcb struct
947 * This function will send a Host Controlled Async command to the adapter.
948 * If HCAMs are currently not allowed to be issued to the adapter, it will
949 * place the hostrcb on the free queue.
954 static void ipr_send_hcam(struct ipr_ioa_cfg *ioa_cfg, u8 type,
955 struct ipr_hostrcb *hostrcb)
957 struct ipr_cmnd *ipr_cmd;
958 struct ipr_ioarcb *ioarcb;
960 if (ioa_cfg->allow_cmds) {
961 ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg);
962 list_add_tail(&ipr_cmd->queue, &ioa_cfg->pending_q);
963 list_add_tail(&hostrcb->queue, &ioa_cfg->hostrcb_pending_q);
965 ipr_cmd->u.hostrcb = hostrcb;
966 ioarcb = &ipr_cmd->ioarcb;
968 ioarcb->res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE);
969 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_HCAM;
970 ioarcb->cmd_pkt.cdb[0] = IPR_HOST_CONTROLLED_ASYNC;
971 ioarcb->cmd_pkt.cdb[1] = type;
972 ioarcb->cmd_pkt.cdb[7] = (sizeof(hostrcb->hcam) >> 8) & 0xff;
973 ioarcb->cmd_pkt.cdb[8] = sizeof(hostrcb->hcam) & 0xff;
975 ipr_init_ioadl(ipr_cmd, hostrcb->hostrcb_dma,
976 sizeof(hostrcb->hcam), IPR_IOADL_FLAGS_READ_LAST);
978 if (type == IPR_HCAM_CDB_OP_CODE_CONFIG_CHANGE)
979 ipr_cmd->done = ipr_process_ccn;
981 ipr_cmd->done = ipr_process_error;
983 ipr_trc_hook(ipr_cmd, IPR_TRACE_START, IPR_IOA_RES_ADDR);
987 ipr_send_command(ipr_cmd);
989 list_add_tail(&hostrcb->queue, &ioa_cfg->hostrcb_free_q);
994 * ipr_update_ata_class - Update the ata class in the resource entry
995 * @res: resource entry struct
996 * @proto: cfgte device bus protocol value
1001 static void ipr_update_ata_class(struct ipr_resource_entry *res, unsigned int proto)
1004 case IPR_PROTO_SATA:
1005 case IPR_PROTO_SAS_STP:
1006 res->ata_class = ATA_DEV_ATA;
1008 case IPR_PROTO_SATA_ATAPI:
1009 case IPR_PROTO_SAS_STP_ATAPI:
1010 res->ata_class = ATA_DEV_ATAPI;
1013 res->ata_class = ATA_DEV_UNKNOWN;
1019 * ipr_init_res_entry - Initialize a resource entry struct.
1020 * @res: resource entry struct
1021 * @cfgtew: config table entry wrapper struct
1026 static void ipr_init_res_entry(struct ipr_resource_entry *res,
1027 struct ipr_config_table_entry_wrapper *cfgtew)
1031 struct ipr_ioa_cfg *ioa_cfg = res->ioa_cfg;
1032 struct ipr_resource_entry *gscsi_res = NULL;
1034 res->needs_sync_complete = 0;
1037 res->del_from_ml = 0;
1038 res->resetting_device = 0;
1040 res->sata_port = NULL;
1042 if (ioa_cfg->sis64) {
1043 proto = cfgtew->u.cfgte64->proto;
1044 res->res_flags = cfgtew->u.cfgte64->res_flags;
1045 res->qmodel = IPR_QUEUEING_MODEL64(res);
1046 res->type = cfgtew->u.cfgte64->res_type;
1048 memcpy(res->res_path, &cfgtew->u.cfgte64->res_path,
1049 sizeof(res->res_path));
1052 memcpy(&res->dev_lun.scsi_lun, &cfgtew->u.cfgte64->lun,
1053 sizeof(res->dev_lun.scsi_lun));
1054 res->lun = scsilun_to_int(&res->dev_lun);
1056 if (res->type == IPR_RES_TYPE_GENERIC_SCSI) {
1057 list_for_each_entry(gscsi_res, &ioa_cfg->used_res_q, queue) {
1058 if (gscsi_res->dev_id == cfgtew->u.cfgte64->dev_id) {
1060 res->target = gscsi_res->target;
1065 res->target = find_first_zero_bit(ioa_cfg->target_ids,
1066 ioa_cfg->max_devs_supported);
1067 set_bit(res->target, ioa_cfg->target_ids);
1069 } else if (res->type == IPR_RES_TYPE_IOAFP) {
1070 res->bus = IPR_IOAFP_VIRTUAL_BUS;
1072 } else if (res->type == IPR_RES_TYPE_ARRAY) {
1073 res->bus = IPR_ARRAY_VIRTUAL_BUS;
1074 res->target = find_first_zero_bit(ioa_cfg->array_ids,
1075 ioa_cfg->max_devs_supported);
1076 set_bit(res->target, ioa_cfg->array_ids);
1077 } else if (res->type == IPR_RES_TYPE_VOLUME_SET) {
1078 res->bus = IPR_VSET_VIRTUAL_BUS;
1079 res->target = find_first_zero_bit(ioa_cfg->vset_ids,
1080 ioa_cfg->max_devs_supported);
1081 set_bit(res->target, ioa_cfg->vset_ids);
1083 res->target = find_first_zero_bit(ioa_cfg->target_ids,
1084 ioa_cfg->max_devs_supported);
1085 set_bit(res->target, ioa_cfg->target_ids);
1088 proto = cfgtew->u.cfgte->proto;
1089 res->qmodel = IPR_QUEUEING_MODEL(res);
1090 res->flags = cfgtew->u.cfgte->flags;
1091 if (res->flags & IPR_IS_IOA_RESOURCE)
1092 res->type = IPR_RES_TYPE_IOAFP;
1094 res->type = cfgtew->u.cfgte->rsvd_subtype & 0x0f;
1096 res->bus = cfgtew->u.cfgte->res_addr.bus;
1097 res->target = cfgtew->u.cfgte->res_addr.target;
1098 res->lun = cfgtew->u.cfgte->res_addr.lun;
1099 res->lun_wwn = get_unaligned_be64(cfgtew->u.cfgte->lun_wwn);
1102 ipr_update_ata_class(res, proto);
1106 * ipr_is_same_device - Determine if two devices are the same.
1107 * @res: resource entry struct
1108 * @cfgtew: config table entry wrapper struct
1111 * 1 if the devices are the same / 0 otherwise
1113 static int ipr_is_same_device(struct ipr_resource_entry *res,
1114 struct ipr_config_table_entry_wrapper *cfgtew)
1116 if (res->ioa_cfg->sis64) {
1117 if (!memcmp(&res->dev_id, &cfgtew->u.cfgte64->dev_id,
1118 sizeof(cfgtew->u.cfgte64->dev_id)) &&
1119 !memcmp(&res->dev_lun.scsi_lun, &cfgtew->u.cfgte64->lun,
1120 sizeof(cfgtew->u.cfgte64->lun))) {
1124 if (res->bus == cfgtew->u.cfgte->res_addr.bus &&
1125 res->target == cfgtew->u.cfgte->res_addr.target &&
1126 res->lun == cfgtew->u.cfgte->res_addr.lun)
1134 * ipr_format_res_path - Format the resource path for printing.
1135 * @res_path: resource path
1141 static char *ipr_format_res_path(u8 *res_path, char *buffer, int len)
1147 p += snprintf(p, buffer + len - p, "%02X", res_path[0]);
1148 for (i = 1; res_path[i] != 0xff && ((i * 3) < len); i++)
1149 p += snprintf(p, buffer + len - p, "-%02X", res_path[i]);
1155 * ipr_update_res_entry - Update the resource entry.
1156 * @res: resource entry struct
1157 * @cfgtew: config table entry wrapper struct
1162 static void ipr_update_res_entry(struct ipr_resource_entry *res,
1163 struct ipr_config_table_entry_wrapper *cfgtew)
1165 char buffer[IPR_MAX_RES_PATH_LENGTH];
1169 if (res->ioa_cfg->sis64) {
1170 res->flags = cfgtew->u.cfgte64->flags;
1171 res->res_flags = cfgtew->u.cfgte64->res_flags;
1172 res->type = cfgtew->u.cfgte64->res_type;
1174 memcpy(&res->std_inq_data, &cfgtew->u.cfgte64->std_inq_data,
1175 sizeof(struct ipr_std_inq_data));
1177 res->qmodel = IPR_QUEUEING_MODEL64(res);
1178 proto = cfgtew->u.cfgte64->proto;
1179 res->res_handle = cfgtew->u.cfgte64->res_handle;
1180 res->dev_id = cfgtew->u.cfgte64->dev_id;
1182 memcpy(&res->dev_lun.scsi_lun, &cfgtew->u.cfgte64->lun,
1183 sizeof(res->dev_lun.scsi_lun));
1185 if (memcmp(res->res_path, &cfgtew->u.cfgte64->res_path,
1186 sizeof(res->res_path))) {
1187 memcpy(res->res_path, &cfgtew->u.cfgte64->res_path,
1188 sizeof(res->res_path));
1192 if (res->sdev && new_path)
1193 sdev_printk(KERN_INFO, res->sdev, "Resource path: %s\n",
1194 ipr_format_res_path(res->res_path, buffer,
1197 res->flags = cfgtew->u.cfgte->flags;
1198 if (res->flags & IPR_IS_IOA_RESOURCE)
1199 res->type = IPR_RES_TYPE_IOAFP;
1201 res->type = cfgtew->u.cfgte->rsvd_subtype & 0x0f;
1203 memcpy(&res->std_inq_data, &cfgtew->u.cfgte->std_inq_data,
1204 sizeof(struct ipr_std_inq_data));
1206 res->qmodel = IPR_QUEUEING_MODEL(res);
1207 proto = cfgtew->u.cfgte->proto;
1208 res->res_handle = cfgtew->u.cfgte->res_handle;
1211 ipr_update_ata_class(res, proto);
1215 * ipr_clear_res_target - Clear the bit in the bit map representing the target
1217 * @res: resource entry struct
1218 * @cfgtew: config table entry wrapper struct
1223 static void ipr_clear_res_target(struct ipr_resource_entry *res)
1225 struct ipr_resource_entry *gscsi_res = NULL;
1226 struct ipr_ioa_cfg *ioa_cfg = res->ioa_cfg;
1228 if (!ioa_cfg->sis64)
1231 if (res->bus == IPR_ARRAY_VIRTUAL_BUS)
1232 clear_bit(res->target, ioa_cfg->array_ids);
1233 else if (res->bus == IPR_VSET_VIRTUAL_BUS)
1234 clear_bit(res->target, ioa_cfg->vset_ids);
1235 else if (res->bus == 0 && res->type == IPR_RES_TYPE_GENERIC_SCSI) {
1236 list_for_each_entry(gscsi_res, &ioa_cfg->used_res_q, queue)
1237 if (gscsi_res->dev_id == res->dev_id && gscsi_res != res)
1239 clear_bit(res->target, ioa_cfg->target_ids);
1241 } else if (res->bus == 0)
1242 clear_bit(res->target, ioa_cfg->target_ids);
1246 * ipr_handle_config_change - Handle a config change from the adapter
1247 * @ioa_cfg: ioa config struct
1253 static void ipr_handle_config_change(struct ipr_ioa_cfg *ioa_cfg,
1254 struct ipr_hostrcb *hostrcb)
1256 struct ipr_resource_entry *res = NULL;
1257 struct ipr_config_table_entry_wrapper cfgtew;
1258 __be32 cc_res_handle;
1262 if (ioa_cfg->sis64) {
1263 cfgtew.u.cfgte64 = &hostrcb->hcam.u.ccn.u.cfgte64;
1264 cc_res_handle = cfgtew.u.cfgte64->res_handle;
1266 cfgtew.u.cfgte = &hostrcb->hcam.u.ccn.u.cfgte;
1267 cc_res_handle = cfgtew.u.cfgte->res_handle;
1270 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) {
1271 if (res->res_handle == cc_res_handle) {
1278 if (list_empty(&ioa_cfg->free_res_q)) {
1279 ipr_send_hcam(ioa_cfg,
1280 IPR_HCAM_CDB_OP_CODE_CONFIG_CHANGE,
1285 res = list_entry(ioa_cfg->free_res_q.next,
1286 struct ipr_resource_entry, queue);
1288 list_del(&res->queue);
1289 ipr_init_res_entry(res, &cfgtew);
1290 list_add_tail(&res->queue, &ioa_cfg->used_res_q);
1293 ipr_update_res_entry(res, &cfgtew);
1295 if (hostrcb->hcam.notify_type == IPR_HOST_RCB_NOTIF_TYPE_REM_ENTRY) {
1297 res->del_from_ml = 1;
1298 res->res_handle = IPR_INVALID_RES_HANDLE;
1299 if (ioa_cfg->allow_ml_add_del)
1300 schedule_work(&ioa_cfg->work_q);
1302 ipr_clear_res_target(res);
1303 list_move_tail(&res->queue, &ioa_cfg->free_res_q);
1305 } else if (!res->sdev || res->del_from_ml) {
1307 if (ioa_cfg->allow_ml_add_del)
1308 schedule_work(&ioa_cfg->work_q);
1311 ipr_send_hcam(ioa_cfg, IPR_HCAM_CDB_OP_CODE_CONFIG_CHANGE, hostrcb);
1315 * ipr_process_ccn - Op done function for a CCN.
1316 * @ipr_cmd: ipr command struct
1318 * This function is the op done function for a configuration
1319 * change notification host controlled async from the adapter.
1324 static void ipr_process_ccn(struct ipr_cmnd *ipr_cmd)
1326 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
1327 struct ipr_hostrcb *hostrcb = ipr_cmd->u.hostrcb;
1328 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
1330 list_del(&hostrcb->queue);
1331 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
1334 if (ioasc != IPR_IOASC_IOA_WAS_RESET)
1335 dev_err(&ioa_cfg->pdev->dev,
1336 "Host RCB failed with IOASC: 0x%08X\n", ioasc);
1338 ipr_send_hcam(ioa_cfg, IPR_HCAM_CDB_OP_CODE_CONFIG_CHANGE, hostrcb);
1340 ipr_handle_config_change(ioa_cfg, hostrcb);
1345 * strip_and_pad_whitespace - Strip and pad trailing whitespace.
1346 * @i: index into buffer
1347 * @buf: string to modify
1349 * This function will strip all trailing whitespace, pad the end
1350 * of the string with a single space, and NULL terminate the string.
1353 * new length of string
1355 static int strip_and_pad_whitespace(int i, char *buf)
1357 while (i && buf[i] == ' ')
1365 * ipr_log_vpd_compact - Log the passed extended VPD compactly.
1366 * @prefix: string to print at start of printk
1367 * @hostrcb: hostrcb pointer
1368 * @vpd: vendor/product id/sn struct
1373 static void ipr_log_vpd_compact(char *prefix, struct ipr_hostrcb *hostrcb,
1374 struct ipr_vpd *vpd)
1376 char buffer[IPR_VENDOR_ID_LEN + IPR_PROD_ID_LEN + IPR_SERIAL_NUM_LEN + 3];
1379 memcpy(buffer, vpd->vpids.vendor_id, IPR_VENDOR_ID_LEN);
1380 i = strip_and_pad_whitespace(IPR_VENDOR_ID_LEN - 1, buffer);
1382 memcpy(&buffer[i], vpd->vpids.product_id, IPR_PROD_ID_LEN);
1383 i = strip_and_pad_whitespace(i + IPR_PROD_ID_LEN - 1, buffer);
1385 memcpy(&buffer[i], vpd->sn, IPR_SERIAL_NUM_LEN);
1386 buffer[IPR_SERIAL_NUM_LEN + i] = '\0';
1388 ipr_hcam_err(hostrcb, "%s VPID/SN: %s\n", prefix, buffer);
1392 * ipr_log_vpd - Log the passed VPD to the error log.
1393 * @vpd: vendor/product id/sn struct
1398 static void ipr_log_vpd(struct ipr_vpd *vpd)
1400 char buffer[IPR_VENDOR_ID_LEN + IPR_PROD_ID_LEN
1401 + IPR_SERIAL_NUM_LEN];
1403 memcpy(buffer, vpd->vpids.vendor_id, IPR_VENDOR_ID_LEN);
1404 memcpy(buffer + IPR_VENDOR_ID_LEN, vpd->vpids.product_id,
1406 buffer[IPR_VENDOR_ID_LEN + IPR_PROD_ID_LEN] = '\0';
1407 ipr_err("Vendor/Product ID: %s\n", buffer);
1409 memcpy(buffer, vpd->sn, IPR_SERIAL_NUM_LEN);
1410 buffer[IPR_SERIAL_NUM_LEN] = '\0';
1411 ipr_err(" Serial Number: %s\n", buffer);
1415 * ipr_log_ext_vpd_compact - Log the passed extended VPD compactly.
1416 * @prefix: string to print at start of printk
1417 * @hostrcb: hostrcb pointer
1418 * @vpd: vendor/product id/sn/wwn struct
1423 static void ipr_log_ext_vpd_compact(char *prefix, struct ipr_hostrcb *hostrcb,
1424 struct ipr_ext_vpd *vpd)
1426 ipr_log_vpd_compact(prefix, hostrcb, &vpd->vpd);
1427 ipr_hcam_err(hostrcb, "%s WWN: %08X%08X\n", prefix,
1428 be32_to_cpu(vpd->wwid[0]), be32_to_cpu(vpd->wwid[1]));
1432 * ipr_log_ext_vpd - Log the passed extended VPD to the error log.
1433 * @vpd: vendor/product id/sn/wwn struct
1438 static void ipr_log_ext_vpd(struct ipr_ext_vpd *vpd)
1440 ipr_log_vpd(&vpd->vpd);
1441 ipr_err(" WWN: %08X%08X\n", be32_to_cpu(vpd->wwid[0]),
1442 be32_to_cpu(vpd->wwid[1]));
1446 * ipr_log_enhanced_cache_error - Log a cache error.
1447 * @ioa_cfg: ioa config struct
1448 * @hostrcb: hostrcb struct
1453 static void ipr_log_enhanced_cache_error(struct ipr_ioa_cfg *ioa_cfg,
1454 struct ipr_hostrcb *hostrcb)
1456 struct ipr_hostrcb_type_12_error *error;
1459 error = &hostrcb->hcam.u.error64.u.type_12_error;
1461 error = &hostrcb->hcam.u.error.u.type_12_error;
1463 ipr_err("-----Current Configuration-----\n");
1464 ipr_err("Cache Directory Card Information:\n");
1465 ipr_log_ext_vpd(&error->ioa_vpd);
1466 ipr_err("Adapter Card Information:\n");
1467 ipr_log_ext_vpd(&error->cfc_vpd);
1469 ipr_err("-----Expected Configuration-----\n");
1470 ipr_err("Cache Directory Card Information:\n");
1471 ipr_log_ext_vpd(&error->ioa_last_attached_to_cfc_vpd);
1472 ipr_err("Adapter Card Information:\n");
1473 ipr_log_ext_vpd(&error->cfc_last_attached_to_ioa_vpd);
1475 ipr_err("Additional IOA Data: %08X %08X %08X\n",
1476 be32_to_cpu(error->ioa_data[0]),
1477 be32_to_cpu(error->ioa_data[1]),
1478 be32_to_cpu(error->ioa_data[2]));
1482 * ipr_log_cache_error - Log a cache error.
1483 * @ioa_cfg: ioa config struct
1484 * @hostrcb: hostrcb struct
1489 static void ipr_log_cache_error(struct ipr_ioa_cfg *ioa_cfg,
1490 struct ipr_hostrcb *hostrcb)
1492 struct ipr_hostrcb_type_02_error *error =
1493 &hostrcb->hcam.u.error.u.type_02_error;
1495 ipr_err("-----Current Configuration-----\n");
1496 ipr_err("Cache Directory Card Information:\n");
1497 ipr_log_vpd(&error->ioa_vpd);
1498 ipr_err("Adapter Card Information:\n");
1499 ipr_log_vpd(&error->cfc_vpd);
1501 ipr_err("-----Expected Configuration-----\n");
1502 ipr_err("Cache Directory Card Information:\n");
1503 ipr_log_vpd(&error->ioa_last_attached_to_cfc_vpd);
1504 ipr_err("Adapter Card Information:\n");
1505 ipr_log_vpd(&error->cfc_last_attached_to_ioa_vpd);
1507 ipr_err("Additional IOA Data: %08X %08X %08X\n",
1508 be32_to_cpu(error->ioa_data[0]),
1509 be32_to_cpu(error->ioa_data[1]),
1510 be32_to_cpu(error->ioa_data[2]));
1514 * ipr_log_enhanced_config_error - Log a configuration error.
1515 * @ioa_cfg: ioa config struct
1516 * @hostrcb: hostrcb struct
1521 static void ipr_log_enhanced_config_error(struct ipr_ioa_cfg *ioa_cfg,
1522 struct ipr_hostrcb *hostrcb)
1524 int errors_logged, i;
1525 struct ipr_hostrcb_device_data_entry_enhanced *dev_entry;
1526 struct ipr_hostrcb_type_13_error *error;
1528 error = &hostrcb->hcam.u.error.u.type_13_error;
1529 errors_logged = be32_to_cpu(error->errors_logged);
1531 ipr_err("Device Errors Detected/Logged: %d/%d\n",
1532 be32_to_cpu(error->errors_detected), errors_logged);
1534 dev_entry = error->dev;
1536 for (i = 0; i < errors_logged; i++, dev_entry++) {
1539 ipr_phys_res_err(ioa_cfg, dev_entry->dev_res_addr, "Device %d", i + 1);
1540 ipr_log_ext_vpd(&dev_entry->vpd);
1542 ipr_err("-----New Device Information-----\n");
1543 ipr_log_ext_vpd(&dev_entry->new_vpd);
1545 ipr_err("Cache Directory Card Information:\n");
1546 ipr_log_ext_vpd(&dev_entry->ioa_last_with_dev_vpd);
1548 ipr_err("Adapter Card Information:\n");
1549 ipr_log_ext_vpd(&dev_entry->cfc_last_with_dev_vpd);
1554 * ipr_log_sis64_config_error - Log a device error.
1555 * @ioa_cfg: ioa config struct
1556 * @hostrcb: hostrcb struct
1561 static void ipr_log_sis64_config_error(struct ipr_ioa_cfg *ioa_cfg,
1562 struct ipr_hostrcb *hostrcb)
1564 int errors_logged, i;
1565 struct ipr_hostrcb64_device_data_entry_enhanced *dev_entry;
1566 struct ipr_hostrcb_type_23_error *error;
1567 char buffer[IPR_MAX_RES_PATH_LENGTH];
1569 error = &hostrcb->hcam.u.error64.u.type_23_error;
1570 errors_logged = be32_to_cpu(error->errors_logged);
1572 ipr_err("Device Errors Detected/Logged: %d/%d\n",
1573 be32_to_cpu(error->errors_detected), errors_logged);
1575 dev_entry = error->dev;
1577 for (i = 0; i < errors_logged; i++, dev_entry++) {
1580 ipr_err("Device %d : %s", i + 1,
1581 ipr_format_res_path(dev_entry->res_path, buffer,
1583 ipr_log_ext_vpd(&dev_entry->vpd);
1585 ipr_err("-----New Device Information-----\n");
1586 ipr_log_ext_vpd(&dev_entry->new_vpd);
1588 ipr_err("Cache Directory Card Information:\n");
1589 ipr_log_ext_vpd(&dev_entry->ioa_last_with_dev_vpd);
1591 ipr_err("Adapter Card Information:\n");
1592 ipr_log_ext_vpd(&dev_entry->cfc_last_with_dev_vpd);
1597 * ipr_log_config_error - Log a configuration error.
1598 * @ioa_cfg: ioa config struct
1599 * @hostrcb: hostrcb struct
1604 static void ipr_log_config_error(struct ipr_ioa_cfg *ioa_cfg,
1605 struct ipr_hostrcb *hostrcb)
1607 int errors_logged, i;
1608 struct ipr_hostrcb_device_data_entry *dev_entry;
1609 struct ipr_hostrcb_type_03_error *error;
1611 error = &hostrcb->hcam.u.error.u.type_03_error;
1612 errors_logged = be32_to_cpu(error->errors_logged);
1614 ipr_err("Device Errors Detected/Logged: %d/%d\n",
1615 be32_to_cpu(error->errors_detected), errors_logged);
1617 dev_entry = error->dev;
1619 for (i = 0; i < errors_logged; i++, dev_entry++) {
1622 ipr_phys_res_err(ioa_cfg, dev_entry->dev_res_addr, "Device %d", i + 1);
1623 ipr_log_vpd(&dev_entry->vpd);
1625 ipr_err("-----New Device Information-----\n");
1626 ipr_log_vpd(&dev_entry->new_vpd);
1628 ipr_err("Cache Directory Card Information:\n");
1629 ipr_log_vpd(&dev_entry->ioa_last_with_dev_vpd);
1631 ipr_err("Adapter Card Information:\n");
1632 ipr_log_vpd(&dev_entry->cfc_last_with_dev_vpd);
1634 ipr_err("Additional IOA Data: %08X %08X %08X %08X %08X\n",
1635 be32_to_cpu(dev_entry->ioa_data[0]),
1636 be32_to_cpu(dev_entry->ioa_data[1]),
1637 be32_to_cpu(dev_entry->ioa_data[2]),
1638 be32_to_cpu(dev_entry->ioa_data[3]),
1639 be32_to_cpu(dev_entry->ioa_data[4]));
1644 * ipr_log_enhanced_array_error - Log an array configuration error.
1645 * @ioa_cfg: ioa config struct
1646 * @hostrcb: hostrcb struct
1651 static void ipr_log_enhanced_array_error(struct ipr_ioa_cfg *ioa_cfg,
1652 struct ipr_hostrcb *hostrcb)
1655 struct ipr_hostrcb_type_14_error *error;
1656 struct ipr_hostrcb_array_data_entry_enhanced *array_entry;
1657 const u8 zero_sn[IPR_SERIAL_NUM_LEN] = { [0 ... IPR_SERIAL_NUM_LEN-1] = '0' };
1659 error = &hostrcb->hcam.u.error.u.type_14_error;
1663 ipr_err("RAID %s Array Configuration: %d:%d:%d:%d\n",
1664 error->protection_level,
1665 ioa_cfg->host->host_no,
1666 error->last_func_vset_res_addr.bus,
1667 error->last_func_vset_res_addr.target,
1668 error->last_func_vset_res_addr.lun);
1672 array_entry = error->array_member;
1673 num_entries = min_t(u32, be32_to_cpu(error->num_entries),
1674 ARRAY_SIZE(error->array_member));
1676 for (i = 0; i < num_entries; i++, array_entry++) {
1677 if (!memcmp(array_entry->vpd.vpd.sn, zero_sn, IPR_SERIAL_NUM_LEN))
1680 if (be32_to_cpu(error->exposed_mode_adn) == i)
1681 ipr_err("Exposed Array Member %d:\n", i);
1683 ipr_err("Array Member %d:\n", i);
1685 ipr_log_ext_vpd(&array_entry->vpd);
1686 ipr_phys_res_err(ioa_cfg, array_entry->dev_res_addr, "Current Location");
1687 ipr_phys_res_err(ioa_cfg, array_entry->expected_dev_res_addr,
1688 "Expected Location");
1695 * ipr_log_array_error - Log an array configuration error.
1696 * @ioa_cfg: ioa config struct
1697 * @hostrcb: hostrcb struct
1702 static void ipr_log_array_error(struct ipr_ioa_cfg *ioa_cfg,
1703 struct ipr_hostrcb *hostrcb)
1706 struct ipr_hostrcb_type_04_error *error;
1707 struct ipr_hostrcb_array_data_entry *array_entry;
1708 const u8 zero_sn[IPR_SERIAL_NUM_LEN] = { [0 ... IPR_SERIAL_NUM_LEN-1] = '0' };
1710 error = &hostrcb->hcam.u.error.u.type_04_error;
1714 ipr_err("RAID %s Array Configuration: %d:%d:%d:%d\n",
1715 error->protection_level,
1716 ioa_cfg->host->host_no,
1717 error->last_func_vset_res_addr.bus,
1718 error->last_func_vset_res_addr.target,
1719 error->last_func_vset_res_addr.lun);
1723 array_entry = error->array_member;
1725 for (i = 0; i < 18; i++) {
1726 if (!memcmp(array_entry->vpd.sn, zero_sn, IPR_SERIAL_NUM_LEN))
1729 if (be32_to_cpu(error->exposed_mode_adn) == i)
1730 ipr_err("Exposed Array Member %d:\n", i);
1732 ipr_err("Array Member %d:\n", i);
1734 ipr_log_vpd(&array_entry->vpd);
1736 ipr_phys_res_err(ioa_cfg, array_entry->dev_res_addr, "Current Location");
1737 ipr_phys_res_err(ioa_cfg, array_entry->expected_dev_res_addr,
1738 "Expected Location");
1743 array_entry = error->array_member2;
1750 * ipr_log_hex_data - Log additional hex IOA error data.
1751 * @ioa_cfg: ioa config struct
1752 * @data: IOA error data
1758 static void ipr_log_hex_data(struct ipr_ioa_cfg *ioa_cfg, u32 *data, int len)
1765 if (ioa_cfg->log_level <= IPR_DEFAULT_LOG_LEVEL)
1766 len = min_t(int, len, IPR_DEFAULT_MAX_ERROR_DUMP);
1768 for (i = 0; i < len / 4; i += 4) {
1769 ipr_err("%08X: %08X %08X %08X %08X\n", i*4,
1770 be32_to_cpu(data[i]),
1771 be32_to_cpu(data[i+1]),
1772 be32_to_cpu(data[i+2]),
1773 be32_to_cpu(data[i+3]));
1778 * ipr_log_enhanced_dual_ioa_error - Log an enhanced dual adapter error.
1779 * @ioa_cfg: ioa config struct
1780 * @hostrcb: hostrcb struct
1785 static void ipr_log_enhanced_dual_ioa_error(struct ipr_ioa_cfg *ioa_cfg,
1786 struct ipr_hostrcb *hostrcb)
1788 struct ipr_hostrcb_type_17_error *error;
1791 error = &hostrcb->hcam.u.error64.u.type_17_error;
1793 error = &hostrcb->hcam.u.error.u.type_17_error;
1795 error->failure_reason[sizeof(error->failure_reason) - 1] = '\0';
1796 strim(error->failure_reason);
1798 ipr_hcam_err(hostrcb, "%s [PRC: %08X]\n", error->failure_reason,
1799 be32_to_cpu(hostrcb->hcam.u.error.prc));
1800 ipr_log_ext_vpd_compact("Remote IOA", hostrcb, &error->vpd);
1801 ipr_log_hex_data(ioa_cfg, error->data,
1802 be32_to_cpu(hostrcb->hcam.length) -
1803 (offsetof(struct ipr_hostrcb_error, u) +
1804 offsetof(struct ipr_hostrcb_type_17_error, data)));
1808 * ipr_log_dual_ioa_error - Log a dual adapter error.
1809 * @ioa_cfg: ioa config struct
1810 * @hostrcb: hostrcb struct
1815 static void ipr_log_dual_ioa_error(struct ipr_ioa_cfg *ioa_cfg,
1816 struct ipr_hostrcb *hostrcb)
1818 struct ipr_hostrcb_type_07_error *error;
1820 error = &hostrcb->hcam.u.error.u.type_07_error;
1821 error->failure_reason[sizeof(error->failure_reason) - 1] = '\0';
1822 strim(error->failure_reason);
1824 ipr_hcam_err(hostrcb, "%s [PRC: %08X]\n", error->failure_reason,
1825 be32_to_cpu(hostrcb->hcam.u.error.prc));
1826 ipr_log_vpd_compact("Remote IOA", hostrcb, &error->vpd);
1827 ipr_log_hex_data(ioa_cfg, error->data,
1828 be32_to_cpu(hostrcb->hcam.length) -
1829 (offsetof(struct ipr_hostrcb_error, u) +
1830 offsetof(struct ipr_hostrcb_type_07_error, data)));
1833 static const struct {
1836 } path_active_desc[] = {
1837 { IPR_PATH_NO_INFO, "Path" },
1838 { IPR_PATH_ACTIVE, "Active path" },
1839 { IPR_PATH_NOT_ACTIVE, "Inactive path" }
1842 static const struct {
1845 } path_state_desc[] = {
1846 { IPR_PATH_STATE_NO_INFO, "has no path state information available" },
1847 { IPR_PATH_HEALTHY, "is healthy" },
1848 { IPR_PATH_DEGRADED, "is degraded" },
1849 { IPR_PATH_FAILED, "is failed" }
1853 * ipr_log_fabric_path - Log a fabric path error
1854 * @hostrcb: hostrcb struct
1855 * @fabric: fabric descriptor
1860 static void ipr_log_fabric_path(struct ipr_hostrcb *hostrcb,
1861 struct ipr_hostrcb_fabric_desc *fabric)
1864 u8 path_state = fabric->path_state;
1865 u8 active = path_state & IPR_PATH_ACTIVE_MASK;
1866 u8 state = path_state & IPR_PATH_STATE_MASK;
1868 for (i = 0; i < ARRAY_SIZE(path_active_desc); i++) {
1869 if (path_active_desc[i].active != active)
1872 for (j = 0; j < ARRAY_SIZE(path_state_desc); j++) {
1873 if (path_state_desc[j].state != state)
1876 if (fabric->cascaded_expander == 0xff && fabric->phy == 0xff) {
1877 ipr_hcam_err(hostrcb, "%s %s: IOA Port=%d\n",
1878 path_active_desc[i].desc, path_state_desc[j].desc,
1880 } else if (fabric->cascaded_expander == 0xff) {
1881 ipr_hcam_err(hostrcb, "%s %s: IOA Port=%d, Phy=%d\n",
1882 path_active_desc[i].desc, path_state_desc[j].desc,
1883 fabric->ioa_port, fabric->phy);
1884 } else if (fabric->phy == 0xff) {
1885 ipr_hcam_err(hostrcb, "%s %s: IOA Port=%d, Cascade=%d\n",
1886 path_active_desc[i].desc, path_state_desc[j].desc,
1887 fabric->ioa_port, fabric->cascaded_expander);
1889 ipr_hcam_err(hostrcb, "%s %s: IOA Port=%d, Cascade=%d, Phy=%d\n",
1890 path_active_desc[i].desc, path_state_desc[j].desc,
1891 fabric->ioa_port, fabric->cascaded_expander, fabric->phy);
1897 ipr_err("Path state=%02X IOA Port=%d Cascade=%d Phy=%d\n", path_state,
1898 fabric->ioa_port, fabric->cascaded_expander, fabric->phy);
1902 * ipr_log64_fabric_path - Log a fabric path error
1903 * @hostrcb: hostrcb struct
1904 * @fabric: fabric descriptor
1909 static void ipr_log64_fabric_path(struct ipr_hostrcb *hostrcb,
1910 struct ipr_hostrcb64_fabric_desc *fabric)
1913 u8 path_state = fabric->path_state;
1914 u8 active = path_state & IPR_PATH_ACTIVE_MASK;
1915 u8 state = path_state & IPR_PATH_STATE_MASK;
1916 char buffer[IPR_MAX_RES_PATH_LENGTH];
1918 for (i = 0; i < ARRAY_SIZE(path_active_desc); i++) {
1919 if (path_active_desc[i].active != active)
1922 for (j = 0; j < ARRAY_SIZE(path_state_desc); j++) {
1923 if (path_state_desc[j].state != state)
1926 ipr_hcam_err(hostrcb, "%s %s: Resource Path=%s\n",
1927 path_active_desc[i].desc, path_state_desc[j].desc,
1928 ipr_format_res_path(fabric->res_path, buffer,
1934 ipr_err("Path state=%02X Resource Path=%s\n", path_state,
1935 ipr_format_res_path(fabric->res_path, buffer, sizeof(buffer)));
1938 static const struct {
1941 } path_type_desc[] = {
1942 { IPR_PATH_CFG_IOA_PORT, "IOA port" },
1943 { IPR_PATH_CFG_EXP_PORT, "Expander port" },
1944 { IPR_PATH_CFG_DEVICE_PORT, "Device port" },
1945 { IPR_PATH_CFG_DEVICE_LUN, "Device LUN" }
1948 static const struct {
1951 } path_status_desc[] = {
1952 { IPR_PATH_CFG_NO_PROB, "Functional" },
1953 { IPR_PATH_CFG_DEGRADED, "Degraded" },
1954 { IPR_PATH_CFG_FAILED, "Failed" },
1955 { IPR_PATH_CFG_SUSPECT, "Suspect" },
1956 { IPR_PATH_NOT_DETECTED, "Missing" },
1957 { IPR_PATH_INCORRECT_CONN, "Incorrectly connected" }
1960 static const char *link_rate[] = {
1963 "phy reset problem",
1980 * ipr_log_path_elem - Log a fabric path element.
1981 * @hostrcb: hostrcb struct
1982 * @cfg: fabric path element struct
1987 static void ipr_log_path_elem(struct ipr_hostrcb *hostrcb,
1988 struct ipr_hostrcb_config_element *cfg)
1991 u8 type = cfg->type_status & IPR_PATH_CFG_TYPE_MASK;
1992 u8 status = cfg->type_status & IPR_PATH_CFG_STATUS_MASK;
1994 if (type == IPR_PATH_CFG_NOT_EXIST)
1997 for (i = 0; i < ARRAY_SIZE(path_type_desc); i++) {
1998 if (path_type_desc[i].type != type)
2001 for (j = 0; j < ARRAY_SIZE(path_status_desc); j++) {
2002 if (path_status_desc[j].status != status)
2005 if (type == IPR_PATH_CFG_IOA_PORT) {
2006 ipr_hcam_err(hostrcb, "%s %s: Phy=%d, Link rate=%s, WWN=%08X%08X\n",
2007 path_status_desc[j].desc, path_type_desc[i].desc,
2008 cfg->phy, link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK],
2009 be32_to_cpu(cfg->wwid[0]), be32_to_cpu(cfg->wwid[1]));
2011 if (cfg->cascaded_expander == 0xff && cfg->phy == 0xff) {
2012 ipr_hcam_err(hostrcb, "%s %s: Link rate=%s, WWN=%08X%08X\n",
2013 path_status_desc[j].desc, path_type_desc[i].desc,
2014 link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK],
2015 be32_to_cpu(cfg->wwid[0]), be32_to_cpu(cfg->wwid[1]));
2016 } else if (cfg->cascaded_expander == 0xff) {
2017 ipr_hcam_err(hostrcb, "%s %s: Phy=%d, Link rate=%s, "
2018 "WWN=%08X%08X\n", path_status_desc[j].desc,
2019 path_type_desc[i].desc, cfg->phy,
2020 link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK],
2021 be32_to_cpu(cfg->wwid[0]), be32_to_cpu(cfg->wwid[1]));
2022 } else if (cfg->phy == 0xff) {
2023 ipr_hcam_err(hostrcb, "%s %s: Cascade=%d, Link rate=%s, "
2024 "WWN=%08X%08X\n", path_status_desc[j].desc,
2025 path_type_desc[i].desc, cfg->cascaded_expander,
2026 link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK],
2027 be32_to_cpu(cfg->wwid[0]), be32_to_cpu(cfg->wwid[1]));
2029 ipr_hcam_err(hostrcb, "%s %s: Cascade=%d, Phy=%d, Link rate=%s "
2030 "WWN=%08X%08X\n", path_status_desc[j].desc,
2031 path_type_desc[i].desc, cfg->cascaded_expander, cfg->phy,
2032 link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK],
2033 be32_to_cpu(cfg->wwid[0]), be32_to_cpu(cfg->wwid[1]));
2040 ipr_hcam_err(hostrcb, "Path element=%02X: Cascade=%d Phy=%d Link rate=%s "
2041 "WWN=%08X%08X\n", cfg->type_status, cfg->cascaded_expander, cfg->phy,
2042 link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK],
2043 be32_to_cpu(cfg->wwid[0]), be32_to_cpu(cfg->wwid[1]));
2047 * ipr_log64_path_elem - Log a fabric path element.
2048 * @hostrcb: hostrcb struct
2049 * @cfg: fabric path element struct
2054 static void ipr_log64_path_elem(struct ipr_hostrcb *hostrcb,
2055 struct ipr_hostrcb64_config_element *cfg)
2058 u8 desc_id = cfg->descriptor_id & IPR_DESCRIPTOR_MASK;
2059 u8 type = cfg->type_status & IPR_PATH_CFG_TYPE_MASK;
2060 u8 status = cfg->type_status & IPR_PATH_CFG_STATUS_MASK;
2061 char buffer[IPR_MAX_RES_PATH_LENGTH];
2063 if (type == IPR_PATH_CFG_NOT_EXIST || desc_id != IPR_DESCRIPTOR_SIS64)
2066 for (i = 0; i < ARRAY_SIZE(path_type_desc); i++) {
2067 if (path_type_desc[i].type != type)
2070 for (j = 0; j < ARRAY_SIZE(path_status_desc); j++) {
2071 if (path_status_desc[j].status != status)
2074 ipr_hcam_err(hostrcb, "%s %s: Resource Path=%s, Link rate=%s, WWN=%08X%08X\n",
2075 path_status_desc[j].desc, path_type_desc[i].desc,
2076 ipr_format_res_path(cfg->res_path, buffer,
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_hcam_err(hostrcb, "Path element=%02X: Resource Path=%s, Link rate=%s "
2084 "WWN=%08X%08X\n", cfg->type_status,
2085 ipr_format_res_path(cfg->res_path, buffer, sizeof(buffer)),
2086 link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK],
2087 be32_to_cpu(cfg->wwid[0]), be32_to_cpu(cfg->wwid[1]));
2091 * ipr_log_fabric_error - Log a fabric error.
2092 * @ioa_cfg: ioa config struct
2093 * @hostrcb: hostrcb struct
2098 static void ipr_log_fabric_error(struct ipr_ioa_cfg *ioa_cfg,
2099 struct ipr_hostrcb *hostrcb)
2101 struct ipr_hostrcb_type_20_error *error;
2102 struct ipr_hostrcb_fabric_desc *fabric;
2103 struct ipr_hostrcb_config_element *cfg;
2106 error = &hostrcb->hcam.u.error.u.type_20_error;
2107 error->failure_reason[sizeof(error->failure_reason) - 1] = '\0';
2108 ipr_hcam_err(hostrcb, "%s\n", error->failure_reason);
2110 add_len = be32_to_cpu(hostrcb->hcam.length) -
2111 (offsetof(struct ipr_hostrcb_error, u) +
2112 offsetof(struct ipr_hostrcb_type_20_error, desc));
2114 for (i = 0, fabric = error->desc; i < error->num_entries; i++) {
2115 ipr_log_fabric_path(hostrcb, fabric);
2116 for_each_fabric_cfg(fabric, cfg)
2117 ipr_log_path_elem(hostrcb, cfg);
2119 add_len -= be16_to_cpu(fabric->length);
2120 fabric = (struct ipr_hostrcb_fabric_desc *)
2121 ((unsigned long)fabric + be16_to_cpu(fabric->length));
2124 ipr_log_hex_data(ioa_cfg, (u32 *)fabric, add_len);
2128 * ipr_log_sis64_array_error - Log a sis64 array error.
2129 * @ioa_cfg: ioa config struct
2130 * @hostrcb: hostrcb struct
2135 static void ipr_log_sis64_array_error(struct ipr_ioa_cfg *ioa_cfg,
2136 struct ipr_hostrcb *hostrcb)
2139 struct ipr_hostrcb_type_24_error *error;
2140 struct ipr_hostrcb64_array_data_entry *array_entry;
2141 char buffer[IPR_MAX_RES_PATH_LENGTH];
2142 const u8 zero_sn[IPR_SERIAL_NUM_LEN] = { [0 ... IPR_SERIAL_NUM_LEN-1] = '0' };
2144 error = &hostrcb->hcam.u.error64.u.type_24_error;
2148 ipr_err("RAID %s Array Configuration: %s\n",
2149 error->protection_level,
2150 ipr_format_res_path(error->last_res_path, buffer, sizeof(buffer)));
2154 array_entry = error->array_member;
2155 num_entries = min_t(u32, error->num_entries,
2156 ARRAY_SIZE(error->array_member));
2158 for (i = 0; i < num_entries; i++, array_entry++) {
2160 if (!memcmp(array_entry->vpd.vpd.sn, zero_sn, IPR_SERIAL_NUM_LEN))
2163 if (error->exposed_mode_adn == i)
2164 ipr_err("Exposed Array Member %d:\n", i);
2166 ipr_err("Array Member %d:\n", i);
2168 ipr_err("Array Member %d:\n", i);
2169 ipr_log_ext_vpd(&array_entry->vpd);
2170 ipr_err("Current Location: %s\n",
2171 ipr_format_res_path(array_entry->res_path, buffer,
2173 ipr_err("Expected Location: %s\n",
2174 ipr_format_res_path(array_entry->expected_res_path,
2175 buffer, sizeof(buffer)));
2182 * ipr_log_sis64_fabric_error - Log a sis64 fabric error.
2183 * @ioa_cfg: ioa config struct
2184 * @hostrcb: hostrcb struct
2189 static void ipr_log_sis64_fabric_error(struct ipr_ioa_cfg *ioa_cfg,
2190 struct ipr_hostrcb *hostrcb)
2192 struct ipr_hostrcb_type_30_error *error;
2193 struct ipr_hostrcb64_fabric_desc *fabric;
2194 struct ipr_hostrcb64_config_element *cfg;
2197 error = &hostrcb->hcam.u.error64.u.type_30_error;
2199 error->failure_reason[sizeof(error->failure_reason) - 1] = '\0';
2200 ipr_hcam_err(hostrcb, "%s\n", error->failure_reason);
2202 add_len = be32_to_cpu(hostrcb->hcam.length) -
2203 (offsetof(struct ipr_hostrcb64_error, u) +
2204 offsetof(struct ipr_hostrcb_type_30_error, desc));
2206 for (i = 0, fabric = error->desc; i < error->num_entries; i++) {
2207 ipr_log64_fabric_path(hostrcb, fabric);
2208 for_each_fabric_cfg(fabric, cfg)
2209 ipr_log64_path_elem(hostrcb, cfg);
2211 add_len -= be16_to_cpu(fabric->length);
2212 fabric = (struct ipr_hostrcb64_fabric_desc *)
2213 ((unsigned long)fabric + be16_to_cpu(fabric->length));
2216 ipr_log_hex_data(ioa_cfg, (u32 *)fabric, add_len);
2220 * ipr_log_generic_error - Log an adapter error.
2221 * @ioa_cfg: ioa config struct
2222 * @hostrcb: hostrcb struct
2227 static void ipr_log_generic_error(struct ipr_ioa_cfg *ioa_cfg,
2228 struct ipr_hostrcb *hostrcb)
2230 ipr_log_hex_data(ioa_cfg, hostrcb->hcam.u.raw.data,
2231 be32_to_cpu(hostrcb->hcam.length));
2235 * ipr_get_error - Find the specfied IOASC in the ipr_error_table.
2238 * This function will return the index of into the ipr_error_table
2239 * for the specified IOASC. If the IOASC is not in the table,
2240 * 0 will be returned, which points to the entry used for unknown errors.
2243 * index into the ipr_error_table
2245 static u32 ipr_get_error(u32 ioasc)
2249 for (i = 0; i < ARRAY_SIZE(ipr_error_table); i++)
2250 if (ipr_error_table[i].ioasc == (ioasc & IPR_IOASC_IOASC_MASK))
2257 * ipr_handle_log_data - Log an adapter error.
2258 * @ioa_cfg: ioa config struct
2259 * @hostrcb: hostrcb struct
2261 * This function logs an adapter error to the system.
2266 static void ipr_handle_log_data(struct ipr_ioa_cfg *ioa_cfg,
2267 struct ipr_hostrcb *hostrcb)
2272 if (hostrcb->hcam.notify_type != IPR_HOST_RCB_NOTIF_TYPE_ERROR_LOG_ENTRY)
2275 if (hostrcb->hcam.notifications_lost == IPR_HOST_RCB_NOTIFICATIONS_LOST)
2276 dev_err(&ioa_cfg->pdev->dev, "Error notifications lost\n");
2279 ioasc = be32_to_cpu(hostrcb->hcam.u.error64.fd_ioasc);
2281 ioasc = be32_to_cpu(hostrcb->hcam.u.error.fd_ioasc);
2283 if (!ioa_cfg->sis64 && (ioasc == IPR_IOASC_BUS_WAS_RESET ||
2284 ioasc == IPR_IOASC_BUS_WAS_RESET_BY_OTHER)) {
2285 /* Tell the midlayer we had a bus reset so it will handle the UA properly */
2286 scsi_report_bus_reset(ioa_cfg->host,
2287 hostrcb->hcam.u.error.fd_res_addr.bus);
2290 error_index = ipr_get_error(ioasc);
2292 if (!ipr_error_table[error_index].log_hcam)
2295 ipr_hcam_err(hostrcb, "%s\n", ipr_error_table[error_index].error);
2297 /* Set indication we have logged an error */
2298 ioa_cfg->errors_logged++;
2300 if (ioa_cfg->log_level < ipr_error_table[error_index].log_hcam)
2302 if (be32_to_cpu(hostrcb->hcam.length) > sizeof(hostrcb->hcam.u.raw))
2303 hostrcb->hcam.length = cpu_to_be32(sizeof(hostrcb->hcam.u.raw));
2305 switch (hostrcb->hcam.overlay_id) {
2306 case IPR_HOST_RCB_OVERLAY_ID_2:
2307 ipr_log_cache_error(ioa_cfg, hostrcb);
2309 case IPR_HOST_RCB_OVERLAY_ID_3:
2310 ipr_log_config_error(ioa_cfg, hostrcb);
2312 case IPR_HOST_RCB_OVERLAY_ID_4:
2313 case IPR_HOST_RCB_OVERLAY_ID_6:
2314 ipr_log_array_error(ioa_cfg, hostrcb);
2316 case IPR_HOST_RCB_OVERLAY_ID_7:
2317 ipr_log_dual_ioa_error(ioa_cfg, hostrcb);
2319 case IPR_HOST_RCB_OVERLAY_ID_12:
2320 ipr_log_enhanced_cache_error(ioa_cfg, hostrcb);
2322 case IPR_HOST_RCB_OVERLAY_ID_13:
2323 ipr_log_enhanced_config_error(ioa_cfg, hostrcb);
2325 case IPR_HOST_RCB_OVERLAY_ID_14:
2326 case IPR_HOST_RCB_OVERLAY_ID_16:
2327 ipr_log_enhanced_array_error(ioa_cfg, hostrcb);
2329 case IPR_HOST_RCB_OVERLAY_ID_17:
2330 ipr_log_enhanced_dual_ioa_error(ioa_cfg, hostrcb);
2332 case IPR_HOST_RCB_OVERLAY_ID_20:
2333 ipr_log_fabric_error(ioa_cfg, hostrcb);
2335 case IPR_HOST_RCB_OVERLAY_ID_23:
2336 ipr_log_sis64_config_error(ioa_cfg, hostrcb);
2338 case IPR_HOST_RCB_OVERLAY_ID_24:
2339 case IPR_HOST_RCB_OVERLAY_ID_26:
2340 ipr_log_sis64_array_error(ioa_cfg, hostrcb);
2342 case IPR_HOST_RCB_OVERLAY_ID_30:
2343 ipr_log_sis64_fabric_error(ioa_cfg, hostrcb);
2345 case IPR_HOST_RCB_OVERLAY_ID_1:
2346 case IPR_HOST_RCB_OVERLAY_ID_DEFAULT:
2348 ipr_log_generic_error(ioa_cfg, hostrcb);
2354 * ipr_process_error - Op done function for an adapter error log.
2355 * @ipr_cmd: ipr command struct
2357 * This function is the op done function for an error log host
2358 * controlled async from the adapter. It will log the error and
2359 * send the HCAM back to the adapter.
2364 static void ipr_process_error(struct ipr_cmnd *ipr_cmd)
2366 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
2367 struct ipr_hostrcb *hostrcb = ipr_cmd->u.hostrcb;
2368 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
2372 fd_ioasc = be32_to_cpu(hostrcb->hcam.u.error64.fd_ioasc);
2374 fd_ioasc = be32_to_cpu(hostrcb->hcam.u.error.fd_ioasc);
2376 list_del(&hostrcb->queue);
2377 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
2380 ipr_handle_log_data(ioa_cfg, hostrcb);
2381 if (fd_ioasc == IPR_IOASC_NR_IOA_RESET_REQUIRED)
2382 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_ABBREV);
2383 } else if (ioasc != IPR_IOASC_IOA_WAS_RESET) {
2384 dev_err(&ioa_cfg->pdev->dev,
2385 "Host RCB failed with IOASC: 0x%08X\n", ioasc);
2388 ipr_send_hcam(ioa_cfg, IPR_HCAM_CDB_OP_CODE_LOG_DATA, hostrcb);
2392 * ipr_timeout - An internally generated op has timed out.
2393 * @ipr_cmd: ipr command struct
2395 * This function blocks host requests and initiates an
2401 static void ipr_timeout(struct ipr_cmnd *ipr_cmd)
2403 unsigned long lock_flags = 0;
2404 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
2407 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
2409 ioa_cfg->errors_logged++;
2410 dev_err(&ioa_cfg->pdev->dev,
2411 "Adapter being reset due to command timeout.\n");
2413 if (WAIT_FOR_DUMP == ioa_cfg->sdt_state)
2414 ioa_cfg->sdt_state = GET_DUMP;
2416 if (!ioa_cfg->in_reset_reload || ioa_cfg->reset_cmd == ipr_cmd)
2417 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
2419 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
2424 * ipr_oper_timeout - Adapter timed out transitioning to operational
2425 * @ipr_cmd: ipr command struct
2427 * This function blocks host requests and initiates an
2433 static void ipr_oper_timeout(struct ipr_cmnd *ipr_cmd)
2435 unsigned long lock_flags = 0;
2436 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
2439 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
2441 ioa_cfg->errors_logged++;
2442 dev_err(&ioa_cfg->pdev->dev,
2443 "Adapter timed out transitioning to operational.\n");
2445 if (WAIT_FOR_DUMP == ioa_cfg->sdt_state)
2446 ioa_cfg->sdt_state = GET_DUMP;
2448 if (!ioa_cfg->in_reset_reload || ioa_cfg->reset_cmd == ipr_cmd) {
2450 ioa_cfg->reset_retries += IPR_NUM_RESET_RELOAD_RETRIES;
2451 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
2454 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
2459 * ipr_reset_reload - Reset/Reload the IOA
2460 * @ioa_cfg: ioa config struct
2461 * @shutdown_type: shutdown type
2463 * This function resets the adapter and re-initializes it.
2464 * This function assumes that all new host commands have been stopped.
2468 static int ipr_reset_reload(struct ipr_ioa_cfg *ioa_cfg,
2469 enum ipr_shutdown_type shutdown_type)
2471 if (!ioa_cfg->in_reset_reload)
2472 ipr_initiate_ioa_reset(ioa_cfg, shutdown_type);
2474 spin_unlock_irq(ioa_cfg->host->host_lock);
2475 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
2476 spin_lock_irq(ioa_cfg->host->host_lock);
2478 /* If we got hit with a host reset while we were already resetting
2479 the adapter for some reason, and the reset failed. */
2480 if (ioa_cfg->ioa_is_dead) {
2489 * ipr_find_ses_entry - Find matching SES in SES table
2490 * @res: resource entry struct of SES
2493 * pointer to SES table entry / NULL on failure
2495 static const struct ipr_ses_table_entry *
2496 ipr_find_ses_entry(struct ipr_resource_entry *res)
2499 struct ipr_std_inq_vpids *vpids;
2500 const struct ipr_ses_table_entry *ste = ipr_ses_table;
2502 for (i = 0; i < ARRAY_SIZE(ipr_ses_table); i++, ste++) {
2503 for (j = 0, matches = 0; j < IPR_PROD_ID_LEN; j++) {
2504 if (ste->compare_product_id_byte[j] == 'X') {
2505 vpids = &res->std_inq_data.vpids;
2506 if (vpids->product_id[j] == ste->product_id[j])
2514 if (matches == IPR_PROD_ID_LEN)
2522 * ipr_get_max_scsi_speed - Determine max SCSI speed for a given bus
2523 * @ioa_cfg: ioa config struct
2525 * @bus_width: bus width
2528 * SCSI bus speed in units of 100KHz, 1600 is 160 MHz
2529 * For a 2-byte wide SCSI bus, the maximum transfer speed is
2530 * twice the maximum transfer rate (e.g. for a wide enabled bus,
2531 * max 160MHz = max 320MB/sec).
2533 static u32 ipr_get_max_scsi_speed(struct ipr_ioa_cfg *ioa_cfg, u8 bus, u8 bus_width)
2535 struct ipr_resource_entry *res;
2536 const struct ipr_ses_table_entry *ste;
2537 u32 max_xfer_rate = IPR_MAX_SCSI_RATE(bus_width);
2539 /* Loop through each config table entry in the config table buffer */
2540 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) {
2541 if (!(IPR_IS_SES_DEVICE(res->std_inq_data)))
2544 if (bus != res->bus)
2547 if (!(ste = ipr_find_ses_entry(res)))
2550 max_xfer_rate = (ste->max_bus_speed_limit * 10) / (bus_width / 8);
2553 return max_xfer_rate;
2557 * ipr_wait_iodbg_ack - Wait for an IODEBUG ACK from the IOA
2558 * @ioa_cfg: ioa config struct
2559 * @max_delay: max delay in micro-seconds to wait
2561 * Waits for an IODEBUG ACK from the IOA, doing busy looping.
2564 * 0 on success / other on failure
2566 static int ipr_wait_iodbg_ack(struct ipr_ioa_cfg *ioa_cfg, int max_delay)
2568 volatile u32 pcii_reg;
2571 /* Read interrupt reg until IOA signals IO Debug Acknowledge */
2572 while (delay < max_delay) {
2573 pcii_reg = readl(ioa_cfg->regs.sense_interrupt_reg);
2575 if (pcii_reg & IPR_PCII_IO_DEBUG_ACKNOWLEDGE)
2578 /* udelay cannot be used if delay is more than a few milliseconds */
2579 if ((delay / 1000) > MAX_UDELAY_MS)
2580 mdelay(delay / 1000);
2590 * ipr_get_sis64_dump_data_section - Dump IOA memory
2591 * @ioa_cfg: ioa config struct
2592 * @start_addr: adapter address to dump
2593 * @dest: destination kernel buffer
2594 * @length_in_words: length to dump in 4 byte words
2599 static int ipr_get_sis64_dump_data_section(struct ipr_ioa_cfg *ioa_cfg,
2601 __be32 *dest, u32 length_in_words)
2605 for (i = 0; i < length_in_words; i++) {
2606 writel(start_addr+(i*4), ioa_cfg->regs.dump_addr_reg);
2607 *dest = cpu_to_be32(readl(ioa_cfg->regs.dump_data_reg));
2615 * ipr_get_ldump_data_section - Dump IOA memory
2616 * @ioa_cfg: ioa config struct
2617 * @start_addr: adapter address to dump
2618 * @dest: destination kernel buffer
2619 * @length_in_words: length to dump in 4 byte words
2622 * 0 on success / -EIO on failure
2624 static int ipr_get_ldump_data_section(struct ipr_ioa_cfg *ioa_cfg,
2626 __be32 *dest, u32 length_in_words)
2628 volatile u32 temp_pcii_reg;
2632 return ipr_get_sis64_dump_data_section(ioa_cfg, start_addr,
2633 dest, length_in_words);
2635 /* Write IOA interrupt reg starting LDUMP state */
2636 writel((IPR_UPROCI_RESET_ALERT | IPR_UPROCI_IO_DEBUG_ALERT),
2637 ioa_cfg->regs.set_uproc_interrupt_reg32);
2639 /* Wait for IO debug acknowledge */
2640 if (ipr_wait_iodbg_ack(ioa_cfg,
2641 IPR_LDUMP_MAX_LONG_ACK_DELAY_IN_USEC)) {
2642 dev_err(&ioa_cfg->pdev->dev,
2643 "IOA dump long data transfer timeout\n");
2647 /* Signal LDUMP interlocked - clear IO debug ack */
2648 writel(IPR_PCII_IO_DEBUG_ACKNOWLEDGE,
2649 ioa_cfg->regs.clr_interrupt_reg);
2651 /* Write Mailbox with starting address */
2652 writel(start_addr, ioa_cfg->ioa_mailbox);
2654 /* Signal address valid - clear IOA Reset alert */
2655 writel(IPR_UPROCI_RESET_ALERT,
2656 ioa_cfg->regs.clr_uproc_interrupt_reg32);
2658 for (i = 0; i < length_in_words; i++) {
2659 /* Wait for IO debug acknowledge */
2660 if (ipr_wait_iodbg_ack(ioa_cfg,
2661 IPR_LDUMP_MAX_SHORT_ACK_DELAY_IN_USEC)) {
2662 dev_err(&ioa_cfg->pdev->dev,
2663 "IOA dump short data transfer timeout\n");
2667 /* Read data from mailbox and increment destination pointer */
2668 *dest = cpu_to_be32(readl(ioa_cfg->ioa_mailbox));
2671 /* For all but the last word of data, signal data received */
2672 if (i < (length_in_words - 1)) {
2673 /* Signal dump data received - Clear IO debug Ack */
2674 writel(IPR_PCII_IO_DEBUG_ACKNOWLEDGE,
2675 ioa_cfg->regs.clr_interrupt_reg);
2679 /* Signal end of block transfer. Set reset alert then clear IO debug ack */
2680 writel(IPR_UPROCI_RESET_ALERT,
2681 ioa_cfg->regs.set_uproc_interrupt_reg32);
2683 writel(IPR_UPROCI_IO_DEBUG_ALERT,
2684 ioa_cfg->regs.clr_uproc_interrupt_reg32);
2686 /* Signal dump data received - Clear IO debug Ack */
2687 writel(IPR_PCII_IO_DEBUG_ACKNOWLEDGE,
2688 ioa_cfg->regs.clr_interrupt_reg);
2690 /* Wait for IOA to signal LDUMP exit - IOA reset alert will be cleared */
2691 while (delay < IPR_LDUMP_MAX_SHORT_ACK_DELAY_IN_USEC) {
2693 readl(ioa_cfg->regs.sense_uproc_interrupt_reg32);
2695 if (!(temp_pcii_reg & IPR_UPROCI_RESET_ALERT))
2705 #ifdef CONFIG_SCSI_IPR_DUMP
2707 * ipr_sdt_copy - Copy Smart Dump Table to kernel buffer
2708 * @ioa_cfg: ioa config struct
2709 * @pci_address: adapter address
2710 * @length: length of data to copy
2712 * Copy data from PCI adapter to kernel buffer.
2713 * Note: length MUST be a 4 byte multiple
2715 * 0 on success / other on failure
2717 static int ipr_sdt_copy(struct ipr_ioa_cfg *ioa_cfg,
2718 unsigned long pci_address, u32 length)
2720 int bytes_copied = 0;
2721 int cur_len, rc, rem_len, rem_page_len, max_dump_size;
2723 unsigned long lock_flags = 0;
2724 struct ipr_ioa_dump *ioa_dump = &ioa_cfg->dump->ioa_dump;
2727 max_dump_size = IPR_FMT3_MAX_IOA_DUMP_SIZE;
2729 max_dump_size = IPR_FMT2_MAX_IOA_DUMP_SIZE;
2731 while (bytes_copied < length &&
2732 (ioa_dump->hdr.len + bytes_copied) < max_dump_size) {
2733 if (ioa_dump->page_offset >= PAGE_SIZE ||
2734 ioa_dump->page_offset == 0) {
2735 page = (__be32 *)__get_free_page(GFP_ATOMIC);
2739 return bytes_copied;
2742 ioa_dump->page_offset = 0;
2743 ioa_dump->ioa_data[ioa_dump->next_page_index] = page;
2744 ioa_dump->next_page_index++;
2746 page = ioa_dump->ioa_data[ioa_dump->next_page_index - 1];
2748 rem_len = length - bytes_copied;
2749 rem_page_len = PAGE_SIZE - ioa_dump->page_offset;
2750 cur_len = min(rem_len, rem_page_len);
2752 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
2753 if (ioa_cfg->sdt_state == ABORT_DUMP) {
2756 rc = ipr_get_ldump_data_section(ioa_cfg,
2757 pci_address + bytes_copied,
2758 &page[ioa_dump->page_offset / 4],
2759 (cur_len / sizeof(u32)));
2761 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
2764 ioa_dump->page_offset += cur_len;
2765 bytes_copied += cur_len;
2773 return bytes_copied;
2777 * ipr_init_dump_entry_hdr - Initialize a dump entry header.
2778 * @hdr: dump entry header struct
2783 static void ipr_init_dump_entry_hdr(struct ipr_dump_entry_header *hdr)
2785 hdr->eye_catcher = IPR_DUMP_EYE_CATCHER;
2787 hdr->offset = sizeof(*hdr);
2788 hdr->status = IPR_DUMP_STATUS_SUCCESS;
2792 * ipr_dump_ioa_type_data - Fill in the adapter type in the dump.
2793 * @ioa_cfg: ioa config struct
2794 * @driver_dump: driver dump struct
2799 static void ipr_dump_ioa_type_data(struct ipr_ioa_cfg *ioa_cfg,
2800 struct ipr_driver_dump *driver_dump)
2802 struct ipr_inquiry_page3 *ucode_vpd = &ioa_cfg->vpd_cbs->page3_data;
2804 ipr_init_dump_entry_hdr(&driver_dump->ioa_type_entry.hdr);
2805 driver_dump->ioa_type_entry.hdr.len =
2806 sizeof(struct ipr_dump_ioa_type_entry) -
2807 sizeof(struct ipr_dump_entry_header);
2808 driver_dump->ioa_type_entry.hdr.data_type = IPR_DUMP_DATA_TYPE_BINARY;
2809 driver_dump->ioa_type_entry.hdr.id = IPR_DUMP_DRIVER_TYPE_ID;
2810 driver_dump->ioa_type_entry.type = ioa_cfg->type;
2811 driver_dump->ioa_type_entry.fw_version = (ucode_vpd->major_release << 24) |
2812 (ucode_vpd->card_type << 16) | (ucode_vpd->minor_release[0] << 8) |
2813 ucode_vpd->minor_release[1];
2814 driver_dump->hdr.num_entries++;
2818 * ipr_dump_version_data - Fill in the driver version in the dump.
2819 * @ioa_cfg: ioa config struct
2820 * @driver_dump: driver dump struct
2825 static void ipr_dump_version_data(struct ipr_ioa_cfg *ioa_cfg,
2826 struct ipr_driver_dump *driver_dump)
2828 ipr_init_dump_entry_hdr(&driver_dump->version_entry.hdr);
2829 driver_dump->version_entry.hdr.len =
2830 sizeof(struct ipr_dump_version_entry) -
2831 sizeof(struct ipr_dump_entry_header);
2832 driver_dump->version_entry.hdr.data_type = IPR_DUMP_DATA_TYPE_ASCII;
2833 driver_dump->version_entry.hdr.id = IPR_DUMP_DRIVER_VERSION_ID;
2834 strcpy(driver_dump->version_entry.version, IPR_DRIVER_VERSION);
2835 driver_dump->hdr.num_entries++;
2839 * ipr_dump_trace_data - Fill in the IOA trace in the dump.
2840 * @ioa_cfg: ioa config struct
2841 * @driver_dump: driver dump struct
2846 static void ipr_dump_trace_data(struct ipr_ioa_cfg *ioa_cfg,
2847 struct ipr_driver_dump *driver_dump)
2849 ipr_init_dump_entry_hdr(&driver_dump->trace_entry.hdr);
2850 driver_dump->trace_entry.hdr.len =
2851 sizeof(struct ipr_dump_trace_entry) -
2852 sizeof(struct ipr_dump_entry_header);
2853 driver_dump->trace_entry.hdr.data_type = IPR_DUMP_DATA_TYPE_BINARY;
2854 driver_dump->trace_entry.hdr.id = IPR_DUMP_TRACE_ID;
2855 memcpy(driver_dump->trace_entry.trace, ioa_cfg->trace, IPR_TRACE_SIZE);
2856 driver_dump->hdr.num_entries++;
2860 * ipr_dump_location_data - Fill in the IOA location in the dump.
2861 * @ioa_cfg: ioa config struct
2862 * @driver_dump: driver dump struct
2867 static void ipr_dump_location_data(struct ipr_ioa_cfg *ioa_cfg,
2868 struct ipr_driver_dump *driver_dump)
2870 ipr_init_dump_entry_hdr(&driver_dump->location_entry.hdr);
2871 driver_dump->location_entry.hdr.len =
2872 sizeof(struct ipr_dump_location_entry) -
2873 sizeof(struct ipr_dump_entry_header);
2874 driver_dump->location_entry.hdr.data_type = IPR_DUMP_DATA_TYPE_ASCII;
2875 driver_dump->location_entry.hdr.id = IPR_DUMP_LOCATION_ID;
2876 strcpy(driver_dump->location_entry.location, dev_name(&ioa_cfg->pdev->dev));
2877 driver_dump->hdr.num_entries++;
2881 * ipr_get_ioa_dump - Perform a dump of the driver and adapter.
2882 * @ioa_cfg: ioa config struct
2883 * @dump: dump struct
2888 static void ipr_get_ioa_dump(struct ipr_ioa_cfg *ioa_cfg, struct ipr_dump *dump)
2890 unsigned long start_addr, sdt_word;
2891 unsigned long lock_flags = 0;
2892 struct ipr_driver_dump *driver_dump = &dump->driver_dump;
2893 struct ipr_ioa_dump *ioa_dump = &dump->ioa_dump;
2894 u32 num_entries, max_num_entries, start_off, end_off;
2895 u32 max_dump_size, bytes_to_copy, bytes_copied, rc;
2896 struct ipr_sdt *sdt;
2902 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
2904 if (ioa_cfg->sdt_state != READ_DUMP) {
2905 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
2909 if (ioa_cfg->sis64) {
2910 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
2911 ssleep(IPR_DUMP_DELAY_SECONDS);
2912 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
2915 start_addr = readl(ioa_cfg->ioa_mailbox);
2917 if (!ioa_cfg->sis64 && !ipr_sdt_is_fmt2(start_addr)) {
2918 dev_err(&ioa_cfg->pdev->dev,
2919 "Invalid dump table format: %lx\n", start_addr);
2920 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
2924 dev_err(&ioa_cfg->pdev->dev, "Dump of IOA initiated\n");
2926 driver_dump->hdr.eye_catcher = IPR_DUMP_EYE_CATCHER;
2928 /* Initialize the overall dump header */
2929 driver_dump->hdr.len = sizeof(struct ipr_driver_dump);
2930 driver_dump->hdr.num_entries = 1;
2931 driver_dump->hdr.first_entry_offset = sizeof(struct ipr_dump_header);
2932 driver_dump->hdr.status = IPR_DUMP_STATUS_SUCCESS;
2933 driver_dump->hdr.os = IPR_DUMP_OS_LINUX;
2934 driver_dump->hdr.driver_name = IPR_DUMP_DRIVER_NAME;
2936 ipr_dump_version_data(ioa_cfg, driver_dump);
2937 ipr_dump_location_data(ioa_cfg, driver_dump);
2938 ipr_dump_ioa_type_data(ioa_cfg, driver_dump);
2939 ipr_dump_trace_data(ioa_cfg, driver_dump);
2941 /* Update dump_header */
2942 driver_dump->hdr.len += sizeof(struct ipr_dump_entry_header);
2944 /* IOA Dump entry */
2945 ipr_init_dump_entry_hdr(&ioa_dump->hdr);
2946 ioa_dump->hdr.len = 0;
2947 ioa_dump->hdr.data_type = IPR_DUMP_DATA_TYPE_BINARY;
2948 ioa_dump->hdr.id = IPR_DUMP_IOA_DUMP_ID;
2950 /* First entries in sdt are actually a list of dump addresses and
2951 lengths to gather the real dump data. sdt represents the pointer
2952 to the ioa generated dump table. Dump data will be extracted based
2953 on entries in this table */
2954 sdt = &ioa_dump->sdt;
2956 if (ioa_cfg->sis64) {
2957 max_num_entries = IPR_FMT3_NUM_SDT_ENTRIES;
2958 max_dump_size = IPR_FMT3_MAX_IOA_DUMP_SIZE;
2960 max_num_entries = IPR_FMT2_NUM_SDT_ENTRIES;
2961 max_dump_size = IPR_FMT2_MAX_IOA_DUMP_SIZE;
2964 bytes_to_copy = offsetof(struct ipr_sdt, entry) +
2965 (max_num_entries * sizeof(struct ipr_sdt_entry));
2966 rc = ipr_get_ldump_data_section(ioa_cfg, start_addr, (__be32 *)sdt,
2967 bytes_to_copy / sizeof(__be32));
2969 /* Smart Dump table is ready to use and the first entry is valid */
2970 if (rc || ((be32_to_cpu(sdt->hdr.state) != IPR_FMT3_SDT_READY_TO_USE) &&
2971 (be32_to_cpu(sdt->hdr.state) != IPR_FMT2_SDT_READY_TO_USE))) {
2972 dev_err(&ioa_cfg->pdev->dev,
2973 "Dump of IOA failed. Dump table not valid: %d, %X.\n",
2974 rc, be32_to_cpu(sdt->hdr.state));
2975 driver_dump->hdr.status = IPR_DUMP_STATUS_FAILED;
2976 ioa_cfg->sdt_state = DUMP_OBTAINED;
2977 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
2981 num_entries = be32_to_cpu(sdt->hdr.num_entries_used);
2983 if (num_entries > max_num_entries)
2984 num_entries = max_num_entries;
2986 /* Update dump length to the actual data to be copied */
2987 dump->driver_dump.hdr.len += sizeof(struct ipr_sdt_header);
2989 dump->driver_dump.hdr.len += num_entries * sizeof(struct ipr_sdt_entry);
2991 dump->driver_dump.hdr.len += max_num_entries * sizeof(struct ipr_sdt_entry);
2993 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
2995 for (i = 0; i < num_entries; i++) {
2996 if (ioa_dump->hdr.len > max_dump_size) {
2997 driver_dump->hdr.status = IPR_DUMP_STATUS_QUAL_SUCCESS;
3001 if (sdt->entry[i].flags & IPR_SDT_VALID_ENTRY) {
3002 sdt_word = be32_to_cpu(sdt->entry[i].start_token);
3004 bytes_to_copy = be32_to_cpu(sdt->entry[i].end_token);
3006 start_off = sdt_word & IPR_FMT2_MBX_ADDR_MASK;
3007 end_off = be32_to_cpu(sdt->entry[i].end_token);
3009 if (ipr_sdt_is_fmt2(sdt_word) && sdt_word)
3010 bytes_to_copy = end_off - start_off;
3015 if (bytes_to_copy > max_dump_size) {
3016 sdt->entry[i].flags &= ~IPR_SDT_VALID_ENTRY;
3020 /* Copy data from adapter to driver buffers */
3021 bytes_copied = ipr_sdt_copy(ioa_cfg, sdt_word,
3024 ioa_dump->hdr.len += bytes_copied;
3026 if (bytes_copied != bytes_to_copy) {
3027 driver_dump->hdr.status = IPR_DUMP_STATUS_QUAL_SUCCESS;
3034 dev_err(&ioa_cfg->pdev->dev, "Dump of IOA completed.\n");
3036 /* Update dump_header */
3037 driver_dump->hdr.len += ioa_dump->hdr.len;
3039 ioa_cfg->sdt_state = DUMP_OBTAINED;
3044 #define ipr_get_ioa_dump(ioa_cfg, dump) do { } while(0)
3048 * ipr_release_dump - Free adapter dump memory
3049 * @kref: kref struct
3054 static void ipr_release_dump(struct kref *kref)
3056 struct ipr_dump *dump = container_of(kref,struct ipr_dump,kref);
3057 struct ipr_ioa_cfg *ioa_cfg = dump->ioa_cfg;
3058 unsigned long lock_flags = 0;
3062 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3063 ioa_cfg->dump = NULL;
3064 ioa_cfg->sdt_state = INACTIVE;
3065 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3067 for (i = 0; i < dump->ioa_dump.next_page_index; i++)
3068 free_page((unsigned long) dump->ioa_dump.ioa_data[i]);
3070 vfree(dump->ioa_dump.ioa_data);
3076 * ipr_worker_thread - Worker thread
3077 * @work: ioa config struct
3079 * Called at task level from a work thread. This function takes care
3080 * of adding and removing device from the mid-layer as configuration
3081 * changes are detected by the adapter.
3086 static void ipr_worker_thread(struct work_struct *work)
3088 unsigned long lock_flags;
3089 struct ipr_resource_entry *res;
3090 struct scsi_device *sdev;
3091 struct ipr_dump *dump;
3092 struct ipr_ioa_cfg *ioa_cfg =
3093 container_of(work, struct ipr_ioa_cfg, work_q);
3094 u8 bus, target, lun;
3098 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3100 if (ioa_cfg->sdt_state == READ_DUMP) {
3101 dump = ioa_cfg->dump;
3103 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3106 kref_get(&dump->kref);
3107 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3108 ipr_get_ioa_dump(ioa_cfg, dump);
3109 kref_put(&dump->kref, ipr_release_dump);
3111 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3112 if (ioa_cfg->sdt_state == DUMP_OBTAINED && !ioa_cfg->dump_timeout)
3113 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
3114 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3121 if (!ioa_cfg->allow_cmds || !ioa_cfg->allow_ml_add_del) {
3122 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3126 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) {
3127 if (res->del_from_ml && res->sdev) {
3130 if (!scsi_device_get(sdev)) {
3131 if (!res->add_to_ml)
3132 list_move_tail(&res->queue, &ioa_cfg->free_res_q);
3134 res->del_from_ml = 0;
3135 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3136 scsi_remove_device(sdev);
3137 scsi_device_put(sdev);
3138 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3145 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) {
3146 if (res->add_to_ml) {
3148 target = res->target;
3151 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3152 scsi_add_device(ioa_cfg->host, bus, target, lun);
3153 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3158 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3159 kobject_uevent(&ioa_cfg->host->shost_dev.kobj, KOBJ_CHANGE);
3163 #ifdef CONFIG_SCSI_IPR_TRACE
3165 * ipr_read_trace - Dump the adapter trace
3166 * @filp: open sysfs file
3167 * @kobj: kobject struct
3168 * @bin_attr: bin_attribute struct
3171 * @count: buffer size
3174 * number of bytes printed to buffer
3176 static ssize_t ipr_read_trace(struct file *filp, struct kobject *kobj,
3177 struct bin_attribute *bin_attr,
3178 char *buf, loff_t off, size_t count)
3180 struct device *dev = container_of(kobj, struct device, kobj);
3181 struct Scsi_Host *shost = class_to_shost(dev);
3182 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
3183 unsigned long lock_flags = 0;
3186 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3187 ret = memory_read_from_buffer(buf, count, &off, ioa_cfg->trace,
3189 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3194 static struct bin_attribute ipr_trace_attr = {
3200 .read = ipr_read_trace,
3205 * ipr_show_fw_version - Show the firmware version
3206 * @dev: class device struct
3210 * number of bytes printed to buffer
3212 static ssize_t ipr_show_fw_version(struct device *dev,
3213 struct device_attribute *attr, char *buf)
3215 struct Scsi_Host *shost = class_to_shost(dev);
3216 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
3217 struct ipr_inquiry_page3 *ucode_vpd = &ioa_cfg->vpd_cbs->page3_data;
3218 unsigned long lock_flags = 0;
3221 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3222 len = snprintf(buf, PAGE_SIZE, "%02X%02X%02X%02X\n",
3223 ucode_vpd->major_release, ucode_vpd->card_type,
3224 ucode_vpd->minor_release[0],
3225 ucode_vpd->minor_release[1]);
3226 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3230 static struct device_attribute ipr_fw_version_attr = {
3232 .name = "fw_version",
3235 .show = ipr_show_fw_version,
3239 * ipr_show_log_level - Show the adapter's error logging level
3240 * @dev: class device struct
3244 * number of bytes printed to buffer
3246 static ssize_t ipr_show_log_level(struct device *dev,
3247 struct device_attribute *attr, char *buf)
3249 struct Scsi_Host *shost = class_to_shost(dev);
3250 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
3251 unsigned long lock_flags = 0;
3254 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3255 len = snprintf(buf, PAGE_SIZE, "%d\n", ioa_cfg->log_level);
3256 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3261 * ipr_store_log_level - Change the adapter's error logging level
3262 * @dev: class device struct
3266 * number of bytes printed to buffer
3268 static ssize_t ipr_store_log_level(struct device *dev,
3269 struct device_attribute *attr,
3270 const char *buf, size_t count)
3272 struct Scsi_Host *shost = class_to_shost(dev);
3273 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
3274 unsigned long lock_flags = 0;
3276 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3277 ioa_cfg->log_level = simple_strtoul(buf, NULL, 10);
3278 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3282 static struct device_attribute ipr_log_level_attr = {
3284 .name = "log_level",
3285 .mode = S_IRUGO | S_IWUSR,
3287 .show = ipr_show_log_level,
3288 .store = ipr_store_log_level
3292 * ipr_store_diagnostics - IOA Diagnostics interface
3293 * @dev: device struct
3295 * @count: buffer size
3297 * This function will reset the adapter and wait a reasonable
3298 * amount of time for any errors that the adapter might log.
3301 * count on success / other on failure
3303 static ssize_t ipr_store_diagnostics(struct device *dev,
3304 struct device_attribute *attr,
3305 const char *buf, size_t count)
3307 struct Scsi_Host *shost = class_to_shost(dev);
3308 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
3309 unsigned long lock_flags = 0;
3312 if (!capable(CAP_SYS_ADMIN))
3315 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3316 while(ioa_cfg->in_reset_reload) {
3317 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3318 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
3319 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3322 ioa_cfg->errors_logged = 0;
3323 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NORMAL);
3325 if (ioa_cfg->in_reset_reload) {
3326 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3327 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
3329 /* Wait for a second for any errors to be logged */
3332 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3336 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3337 if (ioa_cfg->in_reset_reload || ioa_cfg->errors_logged)
3339 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3344 static struct device_attribute ipr_diagnostics_attr = {
3346 .name = "run_diagnostics",
3349 .store = ipr_store_diagnostics
3353 * ipr_show_adapter_state - Show the adapter's state
3354 * @class_dev: device struct
3358 * number of bytes printed to buffer
3360 static ssize_t ipr_show_adapter_state(struct device *dev,
3361 struct device_attribute *attr, char *buf)
3363 struct Scsi_Host *shost = class_to_shost(dev);
3364 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
3365 unsigned long lock_flags = 0;
3368 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3369 if (ioa_cfg->ioa_is_dead)
3370 len = snprintf(buf, PAGE_SIZE, "offline\n");
3372 len = snprintf(buf, PAGE_SIZE, "online\n");
3373 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3378 * ipr_store_adapter_state - Change adapter state
3379 * @dev: device struct
3381 * @count: buffer size
3383 * This function will change the adapter's state.
3386 * count on success / other on failure
3388 static ssize_t ipr_store_adapter_state(struct device *dev,
3389 struct device_attribute *attr,
3390 const char *buf, size_t count)
3392 struct Scsi_Host *shost = class_to_shost(dev);
3393 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
3394 unsigned long lock_flags;
3397 if (!capable(CAP_SYS_ADMIN))
3400 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3401 if (ioa_cfg->ioa_is_dead && !strncmp(buf, "online", 6)) {
3402 ioa_cfg->ioa_is_dead = 0;
3403 ioa_cfg->reset_retries = 0;
3404 ioa_cfg->in_ioa_bringdown = 0;
3405 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
3407 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3408 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
3413 static struct device_attribute ipr_ioa_state_attr = {
3415 .name = "online_state",
3416 .mode = S_IRUGO | S_IWUSR,
3418 .show = ipr_show_adapter_state,
3419 .store = ipr_store_adapter_state
3423 * ipr_store_reset_adapter - Reset the adapter
3424 * @dev: device struct
3426 * @count: buffer size
3428 * This function will reset the adapter.
3431 * count on success / other on failure
3433 static ssize_t ipr_store_reset_adapter(struct device *dev,
3434 struct device_attribute *attr,
3435 const char *buf, size_t count)
3437 struct Scsi_Host *shost = class_to_shost(dev);
3438 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
3439 unsigned long lock_flags;
3442 if (!capable(CAP_SYS_ADMIN))
3445 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3446 if (!ioa_cfg->in_reset_reload)
3447 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NORMAL);
3448 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3449 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
3454 static struct device_attribute ipr_ioa_reset_attr = {
3456 .name = "reset_host",
3459 .store = ipr_store_reset_adapter
3463 * ipr_alloc_ucode_buffer - Allocates a microcode download buffer
3464 * @buf_len: buffer length
3466 * Allocates a DMA'able buffer in chunks and assembles a scatter/gather
3467 * list to use for microcode download
3470 * pointer to sglist / NULL on failure
3472 static struct ipr_sglist *ipr_alloc_ucode_buffer(int buf_len)
3474 int sg_size, order, bsize_elem, num_elem, i, j;
3475 struct ipr_sglist *sglist;
3476 struct scatterlist *scatterlist;
3479 /* Get the minimum size per scatter/gather element */
3480 sg_size = buf_len / (IPR_MAX_SGLIST - 1);
3482 /* Get the actual size per element */
3483 order = get_order(sg_size);
3485 /* Determine the actual number of bytes per element */
3486 bsize_elem = PAGE_SIZE * (1 << order);
3488 /* Determine the actual number of sg entries needed */
3489 if (buf_len % bsize_elem)
3490 num_elem = (buf_len / bsize_elem) + 1;
3492 num_elem = buf_len / bsize_elem;
3494 /* Allocate a scatter/gather list for the DMA */
3495 sglist = kzalloc(sizeof(struct ipr_sglist) +
3496 (sizeof(struct scatterlist) * (num_elem - 1)),
3499 if (sglist == NULL) {
3504 scatterlist = sglist->scatterlist;
3505 sg_init_table(scatterlist, num_elem);
3507 sglist->order = order;
3508 sglist->num_sg = num_elem;
3510 /* Allocate a bunch of sg elements */
3511 for (i = 0; i < num_elem; i++) {
3512 page = alloc_pages(GFP_KERNEL, order);
3516 /* Free up what we already allocated */
3517 for (j = i - 1; j >= 0; j--)
3518 __free_pages(sg_page(&scatterlist[j]), order);
3523 sg_set_page(&scatterlist[i], page, 0, 0);
3530 * ipr_free_ucode_buffer - Frees a microcode download buffer
3531 * @p_dnld: scatter/gather list pointer
3533 * Free a DMA'able ucode download buffer previously allocated with
3534 * ipr_alloc_ucode_buffer
3539 static void ipr_free_ucode_buffer(struct ipr_sglist *sglist)
3543 for (i = 0; i < sglist->num_sg; i++)
3544 __free_pages(sg_page(&sglist->scatterlist[i]), sglist->order);
3550 * ipr_copy_ucode_buffer - Copy user buffer to kernel buffer
3551 * @sglist: scatter/gather list pointer
3552 * @buffer: buffer pointer
3553 * @len: buffer length
3555 * Copy a microcode image from a user buffer into a buffer allocated by
3556 * ipr_alloc_ucode_buffer
3559 * 0 on success / other on failure
3561 static int ipr_copy_ucode_buffer(struct ipr_sglist *sglist,
3562 u8 *buffer, u32 len)
3564 int bsize_elem, i, result = 0;
3565 struct scatterlist *scatterlist;
3568 /* Determine the actual number of bytes per element */
3569 bsize_elem = PAGE_SIZE * (1 << sglist->order);
3571 scatterlist = sglist->scatterlist;
3573 for (i = 0; i < (len / bsize_elem); i++, buffer += bsize_elem) {
3574 struct page *page = sg_page(&scatterlist[i]);
3577 memcpy(kaddr, buffer, bsize_elem);
3580 scatterlist[i].length = bsize_elem;
3588 if (len % bsize_elem) {
3589 struct page *page = sg_page(&scatterlist[i]);
3592 memcpy(kaddr, buffer, len % bsize_elem);
3595 scatterlist[i].length = len % bsize_elem;
3598 sglist->buffer_len = len;
3603 * ipr_build_ucode_ioadl64 - Build a microcode download IOADL
3604 * @ipr_cmd: ipr command struct
3605 * @sglist: scatter/gather list
3607 * Builds a microcode download IOA data list (IOADL).
3610 static void ipr_build_ucode_ioadl64(struct ipr_cmnd *ipr_cmd,
3611 struct ipr_sglist *sglist)
3613 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
3614 struct ipr_ioadl64_desc *ioadl64 = ipr_cmd->i.ioadl64;
3615 struct scatterlist *scatterlist = sglist->scatterlist;
3618 ipr_cmd->dma_use_sg = sglist->num_dma_sg;
3619 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ;
3620 ioarcb->data_transfer_length = cpu_to_be32(sglist->buffer_len);
3623 cpu_to_be32(sizeof(struct ipr_ioadl64_desc) * ipr_cmd->dma_use_sg);
3624 for (i = 0; i < ipr_cmd->dma_use_sg; i++) {
3625 ioadl64[i].flags = cpu_to_be32(IPR_IOADL_FLAGS_WRITE);
3626 ioadl64[i].data_len = cpu_to_be32(sg_dma_len(&scatterlist[i]));
3627 ioadl64[i].address = cpu_to_be64(sg_dma_address(&scatterlist[i]));
3630 ioadl64[i-1].flags |= cpu_to_be32(IPR_IOADL_FLAGS_LAST);
3634 * ipr_build_ucode_ioadl - Build a microcode download IOADL
3635 * @ipr_cmd: ipr command struct
3636 * @sglist: scatter/gather list
3638 * Builds a microcode download IOA data list (IOADL).
3641 static void ipr_build_ucode_ioadl(struct ipr_cmnd *ipr_cmd,
3642 struct ipr_sglist *sglist)
3644 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
3645 struct ipr_ioadl_desc *ioadl = ipr_cmd->i.ioadl;
3646 struct scatterlist *scatterlist = sglist->scatterlist;
3649 ipr_cmd->dma_use_sg = sglist->num_dma_sg;
3650 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ;
3651 ioarcb->data_transfer_length = cpu_to_be32(sglist->buffer_len);
3654 cpu_to_be32(sizeof(struct ipr_ioadl_desc) * ipr_cmd->dma_use_sg);
3656 for (i = 0; i < ipr_cmd->dma_use_sg; i++) {
3657 ioadl[i].flags_and_data_len =
3658 cpu_to_be32(IPR_IOADL_FLAGS_WRITE | sg_dma_len(&scatterlist[i]));
3660 cpu_to_be32(sg_dma_address(&scatterlist[i]));
3663 ioadl[i-1].flags_and_data_len |=
3664 cpu_to_be32(IPR_IOADL_FLAGS_LAST);
3668 * ipr_update_ioa_ucode - Update IOA's microcode
3669 * @ioa_cfg: ioa config struct
3670 * @sglist: scatter/gather list
3672 * Initiate an adapter reset to update the IOA's microcode
3675 * 0 on success / -EIO on failure
3677 static int ipr_update_ioa_ucode(struct ipr_ioa_cfg *ioa_cfg,
3678 struct ipr_sglist *sglist)
3680 unsigned long lock_flags;
3682 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3683 while(ioa_cfg->in_reset_reload) {
3684 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3685 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
3686 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3689 if (ioa_cfg->ucode_sglist) {
3690 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3691 dev_err(&ioa_cfg->pdev->dev,
3692 "Microcode download already in progress\n");
3696 sglist->num_dma_sg = pci_map_sg(ioa_cfg->pdev, sglist->scatterlist,
3697 sglist->num_sg, DMA_TO_DEVICE);
3699 if (!sglist->num_dma_sg) {
3700 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3701 dev_err(&ioa_cfg->pdev->dev,
3702 "Failed to map microcode download buffer!\n");
3706 ioa_cfg->ucode_sglist = sglist;
3707 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NORMAL);
3708 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3709 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
3711 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3712 ioa_cfg->ucode_sglist = NULL;
3713 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3718 * ipr_store_update_fw - Update the firmware on the adapter
3719 * @class_dev: device struct
3721 * @count: buffer size
3723 * This function will update the firmware on the adapter.
3726 * count on success / other on failure
3728 static ssize_t ipr_store_update_fw(struct device *dev,
3729 struct device_attribute *attr,
3730 const char *buf, size_t count)
3732 struct Scsi_Host *shost = class_to_shost(dev);
3733 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
3734 struct ipr_ucode_image_header *image_hdr;
3735 const struct firmware *fw_entry;
3736 struct ipr_sglist *sglist;
3739 int len, result, dnld_size;
3741 if (!capable(CAP_SYS_ADMIN))
3744 len = snprintf(fname, 99, "%s", buf);
3745 fname[len-1] = '\0';
3747 if(request_firmware(&fw_entry, fname, &ioa_cfg->pdev->dev)) {
3748 dev_err(&ioa_cfg->pdev->dev, "Firmware file %s not found\n", fname);
3752 image_hdr = (struct ipr_ucode_image_header *)fw_entry->data;
3754 src = (u8 *)image_hdr + be32_to_cpu(image_hdr->header_length);
3755 dnld_size = fw_entry->size - be32_to_cpu(image_hdr->header_length);
3756 sglist = ipr_alloc_ucode_buffer(dnld_size);
3759 dev_err(&ioa_cfg->pdev->dev, "Microcode buffer allocation failed\n");
3760 release_firmware(fw_entry);
3764 result = ipr_copy_ucode_buffer(sglist, src, dnld_size);
3767 dev_err(&ioa_cfg->pdev->dev,
3768 "Microcode buffer copy to DMA buffer failed\n");
3772 ipr_info("Updating microcode, please be patient. This may take up to 30 minutes.\n");
3774 result = ipr_update_ioa_ucode(ioa_cfg, sglist);
3779 ipr_free_ucode_buffer(sglist);
3780 release_firmware(fw_entry);
3784 static struct device_attribute ipr_update_fw_attr = {
3786 .name = "update_fw",
3789 .store = ipr_store_update_fw
3793 * ipr_show_fw_type - Show the adapter's firmware type.
3794 * @dev: class device struct
3798 * number of bytes printed to buffer
3800 static ssize_t ipr_show_fw_type(struct device *dev,
3801 struct device_attribute *attr, char *buf)
3803 struct Scsi_Host *shost = class_to_shost(dev);
3804 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
3805 unsigned long lock_flags = 0;
3808 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3809 len = snprintf(buf, PAGE_SIZE, "%d\n", ioa_cfg->sis64);
3810 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3814 static struct device_attribute ipr_ioa_fw_type_attr = {
3819 .show = ipr_show_fw_type
3822 static struct device_attribute *ipr_ioa_attrs[] = {
3823 &ipr_fw_version_attr,
3824 &ipr_log_level_attr,
3825 &ipr_diagnostics_attr,
3826 &ipr_ioa_state_attr,
3827 &ipr_ioa_reset_attr,
3828 &ipr_update_fw_attr,
3829 &ipr_ioa_fw_type_attr,
3833 #ifdef CONFIG_SCSI_IPR_DUMP
3835 * ipr_read_dump - Dump the adapter
3836 * @filp: open sysfs file
3837 * @kobj: kobject struct
3838 * @bin_attr: bin_attribute struct
3841 * @count: buffer size
3844 * number of bytes printed to buffer
3846 static ssize_t ipr_read_dump(struct file *filp, struct kobject *kobj,
3847 struct bin_attribute *bin_attr,
3848 char *buf, loff_t off, size_t count)
3850 struct device *cdev = container_of(kobj, struct device, kobj);
3851 struct Scsi_Host *shost = class_to_shost(cdev);
3852 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
3853 struct ipr_dump *dump;
3854 unsigned long lock_flags = 0;
3859 if (!capable(CAP_SYS_ADMIN))
3862 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3863 dump = ioa_cfg->dump;
3865 if (ioa_cfg->sdt_state != DUMP_OBTAINED || !dump) {
3866 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3869 kref_get(&dump->kref);
3870 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3872 if (off > dump->driver_dump.hdr.len) {
3873 kref_put(&dump->kref, ipr_release_dump);
3877 if (off + count > dump->driver_dump.hdr.len) {
3878 count = dump->driver_dump.hdr.len - off;
3882 if (count && off < sizeof(dump->driver_dump)) {
3883 if (off + count > sizeof(dump->driver_dump))
3884 len = sizeof(dump->driver_dump) - off;
3887 src = (u8 *)&dump->driver_dump + off;
3888 memcpy(buf, src, len);
3894 off -= sizeof(dump->driver_dump);
3897 sdt_end = offsetof(struct ipr_ioa_dump, sdt.entry) +
3898 (be32_to_cpu(dump->ioa_dump.sdt.hdr.num_entries_used) *
3899 sizeof(struct ipr_sdt_entry));
3901 sdt_end = offsetof(struct ipr_ioa_dump, sdt.entry) +
3902 (IPR_FMT2_NUM_SDT_ENTRIES * sizeof(struct ipr_sdt_entry));
3904 if (count && off < sdt_end) {
3905 if (off + count > sdt_end)
3906 len = sdt_end - off;
3909 src = (u8 *)&dump->ioa_dump + off;
3910 memcpy(buf, src, len);
3919 if ((off & PAGE_MASK) != ((off + count) & PAGE_MASK))
3920 len = PAGE_ALIGN(off) - off;
3923 src = (u8 *)dump->ioa_dump.ioa_data[(off & PAGE_MASK) >> PAGE_SHIFT];
3924 src += off & ~PAGE_MASK;
3925 memcpy(buf, src, len);
3931 kref_put(&dump->kref, ipr_release_dump);
3936 * ipr_alloc_dump - Prepare for adapter dump
3937 * @ioa_cfg: ioa config struct
3940 * 0 on success / other on failure
3942 static int ipr_alloc_dump(struct ipr_ioa_cfg *ioa_cfg)
3944 struct ipr_dump *dump;
3946 unsigned long lock_flags = 0;
3948 dump = kzalloc(sizeof(struct ipr_dump), GFP_KERNEL);
3951 ipr_err("Dump memory allocation failed\n");
3956 ioa_data = vmalloc(IPR_FMT3_MAX_NUM_DUMP_PAGES * sizeof(__be32 *));
3958 ioa_data = vmalloc(IPR_FMT2_MAX_NUM_DUMP_PAGES * sizeof(__be32 *));
3961 ipr_err("Dump memory allocation failed\n");
3966 dump->ioa_dump.ioa_data = ioa_data;
3968 kref_init(&dump->kref);
3969 dump->ioa_cfg = ioa_cfg;
3971 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3973 if (INACTIVE != ioa_cfg->sdt_state) {
3974 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3975 vfree(dump->ioa_dump.ioa_data);
3980 ioa_cfg->dump = dump;
3981 ioa_cfg->sdt_state = WAIT_FOR_DUMP;
3982 if (ioa_cfg->ioa_is_dead && !ioa_cfg->dump_taken) {
3983 ioa_cfg->dump_taken = 1;
3984 schedule_work(&ioa_cfg->work_q);
3986 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3992 * ipr_free_dump - Free adapter dump memory
3993 * @ioa_cfg: ioa config struct
3996 * 0 on success / other on failure
3998 static int ipr_free_dump(struct ipr_ioa_cfg *ioa_cfg)
4000 struct ipr_dump *dump;
4001 unsigned long lock_flags = 0;
4005 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4006 dump = ioa_cfg->dump;
4008 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4012 ioa_cfg->dump = NULL;
4013 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4015 kref_put(&dump->kref, ipr_release_dump);
4022 * ipr_write_dump - Setup dump state of adapter
4023 * @filp: open sysfs file
4024 * @kobj: kobject struct
4025 * @bin_attr: bin_attribute struct
4028 * @count: buffer size
4031 * number of bytes printed to buffer
4033 static ssize_t ipr_write_dump(struct file *filp, struct kobject *kobj,
4034 struct bin_attribute *bin_attr,
4035 char *buf, loff_t off, size_t count)
4037 struct device *cdev = container_of(kobj, struct device, kobj);
4038 struct Scsi_Host *shost = class_to_shost(cdev);
4039 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
4042 if (!capable(CAP_SYS_ADMIN))
4046 rc = ipr_alloc_dump(ioa_cfg);
4047 else if (buf[0] == '0')
4048 rc = ipr_free_dump(ioa_cfg);
4058 static struct bin_attribute ipr_dump_attr = {
4061 .mode = S_IRUSR | S_IWUSR,
4064 .read = ipr_read_dump,
4065 .write = ipr_write_dump
4068 static int ipr_free_dump(struct ipr_ioa_cfg *ioa_cfg) { return 0; };
4072 * ipr_change_queue_depth - Change the device's queue depth
4073 * @sdev: scsi device struct
4074 * @qdepth: depth to set
4075 * @reason: calling context
4080 static int ipr_change_queue_depth(struct scsi_device *sdev, int qdepth,
4083 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)sdev->host->hostdata;
4084 struct ipr_resource_entry *res;
4085 unsigned long lock_flags = 0;
4087 if (reason != SCSI_QDEPTH_DEFAULT)
4090 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4091 res = (struct ipr_resource_entry *)sdev->hostdata;
4093 if (res && ipr_is_gata(res) && qdepth > IPR_MAX_CMD_PER_ATA_LUN)
4094 qdepth = IPR_MAX_CMD_PER_ATA_LUN;
4095 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4097 scsi_adjust_queue_depth(sdev, scsi_get_tag_type(sdev), qdepth);
4098 return sdev->queue_depth;
4102 * ipr_change_queue_type - Change the device's queue type
4103 * @dsev: scsi device struct
4104 * @tag_type: type of tags to use
4107 * actual queue type set
4109 static int ipr_change_queue_type(struct scsi_device *sdev, int tag_type)
4111 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)sdev->host->hostdata;
4112 struct ipr_resource_entry *res;
4113 unsigned long lock_flags = 0;
4115 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4116 res = (struct ipr_resource_entry *)sdev->hostdata;
4119 if (ipr_is_gscsi(res) && sdev->tagged_supported) {
4121 * We don't bother quiescing the device here since the
4122 * adapter firmware does it for us.
4124 scsi_set_tag_type(sdev, tag_type);
4127 scsi_activate_tcq(sdev, sdev->queue_depth);
4129 scsi_deactivate_tcq(sdev, sdev->queue_depth);
4135 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4140 * ipr_show_adapter_handle - Show the adapter's resource handle for this device
4141 * @dev: device struct
4142 * @attr: device attribute structure
4146 * number of bytes printed to buffer
4148 static ssize_t ipr_show_adapter_handle(struct device *dev, struct device_attribute *attr, char *buf)
4150 struct scsi_device *sdev = to_scsi_device(dev);
4151 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)sdev->host->hostdata;
4152 struct ipr_resource_entry *res;
4153 unsigned long lock_flags = 0;
4154 ssize_t len = -ENXIO;
4156 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4157 res = (struct ipr_resource_entry *)sdev->hostdata;
4159 len = snprintf(buf, PAGE_SIZE, "%08X\n", res->res_handle);
4160 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4164 static struct device_attribute ipr_adapter_handle_attr = {
4166 .name = "adapter_handle",
4169 .show = ipr_show_adapter_handle
4173 * ipr_show_resource_path - Show the resource path or the resource address for
4175 * @dev: device struct
4176 * @attr: device attribute structure
4180 * number of bytes printed to buffer
4182 static ssize_t ipr_show_resource_path(struct device *dev, struct device_attribute *attr, char *buf)
4184 struct scsi_device *sdev = to_scsi_device(dev);
4185 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)sdev->host->hostdata;
4186 struct ipr_resource_entry *res;
4187 unsigned long lock_flags = 0;
4188 ssize_t len = -ENXIO;
4189 char buffer[IPR_MAX_RES_PATH_LENGTH];
4191 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4192 res = (struct ipr_resource_entry *)sdev->hostdata;
4193 if (res && ioa_cfg->sis64)
4194 len = snprintf(buf, PAGE_SIZE, "%s\n",
4195 ipr_format_res_path(res->res_path, buffer,
4198 len = snprintf(buf, PAGE_SIZE, "%d:%d:%d:%d\n", ioa_cfg->host->host_no,
4199 res->bus, res->target, res->lun);
4201 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4205 static struct device_attribute ipr_resource_path_attr = {
4207 .name = "resource_path",
4210 .show = ipr_show_resource_path
4214 * ipr_show_device_id - Show the device_id for this device.
4215 * @dev: device struct
4216 * @attr: device attribute structure
4220 * number of bytes printed to buffer
4222 static ssize_t ipr_show_device_id(struct device *dev, struct device_attribute *attr, char *buf)
4224 struct scsi_device *sdev = to_scsi_device(dev);
4225 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)sdev->host->hostdata;
4226 struct ipr_resource_entry *res;
4227 unsigned long lock_flags = 0;
4228 ssize_t len = -ENXIO;
4230 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4231 res = (struct ipr_resource_entry *)sdev->hostdata;
4232 if (res && ioa_cfg->sis64)
4233 len = snprintf(buf, PAGE_SIZE, "0x%llx\n", res->dev_id);
4235 len = snprintf(buf, PAGE_SIZE, "0x%llx\n", res->lun_wwn);
4237 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4241 static struct device_attribute ipr_device_id_attr = {
4243 .name = "device_id",
4246 .show = ipr_show_device_id
4250 * ipr_show_resource_type - Show the resource type for this device.
4251 * @dev: device struct
4252 * @attr: device attribute structure
4256 * number of bytes printed to buffer
4258 static ssize_t ipr_show_resource_type(struct device *dev, struct device_attribute *attr, char *buf)
4260 struct scsi_device *sdev = to_scsi_device(dev);
4261 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)sdev->host->hostdata;
4262 struct ipr_resource_entry *res;
4263 unsigned long lock_flags = 0;
4264 ssize_t len = -ENXIO;
4266 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4267 res = (struct ipr_resource_entry *)sdev->hostdata;
4270 len = snprintf(buf, PAGE_SIZE, "%x\n", res->type);
4272 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4276 static struct device_attribute ipr_resource_type_attr = {
4278 .name = "resource_type",
4281 .show = ipr_show_resource_type
4284 static struct device_attribute *ipr_dev_attrs[] = {
4285 &ipr_adapter_handle_attr,
4286 &ipr_resource_path_attr,
4287 &ipr_device_id_attr,
4288 &ipr_resource_type_attr,
4293 * ipr_biosparam - Return the HSC mapping
4294 * @sdev: scsi device struct
4295 * @block_device: block device pointer
4296 * @capacity: capacity of the device
4297 * @parm: Array containing returned HSC values.
4299 * This function generates the HSC parms that fdisk uses.
4300 * We want to make sure we return something that places partitions
4301 * on 4k boundaries for best performance with the IOA.
4306 static int ipr_biosparam(struct scsi_device *sdev,
4307 struct block_device *block_device,
4308 sector_t capacity, int *parm)
4316 cylinders = capacity;
4317 sector_div(cylinders, (128 * 32));
4322 parm[2] = cylinders;
4328 * ipr_find_starget - Find target based on bus/target.
4329 * @starget: scsi target struct
4332 * resource entry pointer if found / NULL if not found
4334 static struct ipr_resource_entry *ipr_find_starget(struct scsi_target *starget)
4336 struct Scsi_Host *shost = dev_to_shost(&starget->dev);
4337 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) shost->hostdata;
4338 struct ipr_resource_entry *res;
4340 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) {
4341 if ((res->bus == starget->channel) &&
4342 (res->target == starget->id)) {
4350 static struct ata_port_info sata_port_info;
4353 * ipr_target_alloc - Prepare for commands to a SCSI target
4354 * @starget: scsi target struct
4356 * If the device is a SATA device, this function allocates an
4357 * ATA port with libata, else it does nothing.
4360 * 0 on success / non-0 on failure
4362 static int ipr_target_alloc(struct scsi_target *starget)
4364 struct Scsi_Host *shost = dev_to_shost(&starget->dev);
4365 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) shost->hostdata;
4366 struct ipr_sata_port *sata_port;
4367 struct ata_port *ap;
4368 struct ipr_resource_entry *res;
4369 unsigned long lock_flags;
4371 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4372 res = ipr_find_starget(starget);
4373 starget->hostdata = NULL;
4375 if (res && ipr_is_gata(res)) {
4376 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4377 sata_port = kzalloc(sizeof(*sata_port), GFP_KERNEL);
4381 ap = ata_sas_port_alloc(&ioa_cfg->ata_host, &sata_port_info, shost);
4383 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4384 sata_port->ioa_cfg = ioa_cfg;
4386 sata_port->res = res;
4388 res->sata_port = sata_port;
4389 ap->private_data = sata_port;
4390 starget->hostdata = sata_port;
4396 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4402 * ipr_target_destroy - Destroy a SCSI target
4403 * @starget: scsi target struct
4405 * If the device was a SATA device, this function frees the libata
4406 * ATA port, else it does nothing.
4409 static void ipr_target_destroy(struct scsi_target *starget)
4411 struct ipr_sata_port *sata_port = starget->hostdata;
4412 struct Scsi_Host *shost = dev_to_shost(&starget->dev);
4413 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) shost->hostdata;
4415 if (ioa_cfg->sis64) {
4416 if (!ipr_find_starget(starget)) {
4417 if (starget->channel == IPR_ARRAY_VIRTUAL_BUS)
4418 clear_bit(starget->id, ioa_cfg->array_ids);
4419 else if (starget->channel == IPR_VSET_VIRTUAL_BUS)
4420 clear_bit(starget->id, ioa_cfg->vset_ids);
4421 else if (starget->channel == 0)
4422 clear_bit(starget->id, ioa_cfg->target_ids);
4427 starget->hostdata = NULL;
4428 ata_sas_port_destroy(sata_port->ap);
4434 * ipr_find_sdev - Find device based on bus/target/lun.
4435 * @sdev: scsi device struct
4438 * resource entry pointer if found / NULL if not found
4440 static struct ipr_resource_entry *ipr_find_sdev(struct scsi_device *sdev)
4442 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) sdev->host->hostdata;
4443 struct ipr_resource_entry *res;
4445 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) {
4446 if ((res->bus == sdev->channel) &&
4447 (res->target == sdev->id) &&
4448 (res->lun == sdev->lun))
4456 * ipr_slave_destroy - Unconfigure a SCSI device
4457 * @sdev: scsi device struct
4462 static void ipr_slave_destroy(struct scsi_device *sdev)
4464 struct ipr_resource_entry *res;
4465 struct ipr_ioa_cfg *ioa_cfg;
4466 unsigned long lock_flags = 0;
4468 ioa_cfg = (struct ipr_ioa_cfg *) sdev->host->hostdata;
4470 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4471 res = (struct ipr_resource_entry *) sdev->hostdata;
4474 res->sata_port->ap->link.device[0].class = ATA_DEV_NONE;
4475 sdev->hostdata = NULL;
4477 res->sata_port = NULL;
4479 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4483 * ipr_slave_configure - Configure a SCSI device
4484 * @sdev: scsi device struct
4486 * This function configures the specified scsi device.
4491 static int ipr_slave_configure(struct scsi_device *sdev)
4493 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) sdev->host->hostdata;
4494 struct ipr_resource_entry *res;
4495 struct ata_port *ap = NULL;
4496 unsigned long lock_flags = 0;
4497 char buffer[IPR_MAX_RES_PATH_LENGTH];
4499 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4500 res = sdev->hostdata;
4502 if (ipr_is_af_dasd_device(res))
4503 sdev->type = TYPE_RAID;
4504 if (ipr_is_af_dasd_device(res) || ipr_is_ioa_resource(res)) {
4505 sdev->scsi_level = 4;
4506 sdev->no_uld_attach = 1;
4508 if (ipr_is_vset_device(res)) {
4509 blk_queue_rq_timeout(sdev->request_queue,
4510 IPR_VSET_RW_TIMEOUT);
4511 blk_queue_max_hw_sectors(sdev->request_queue, IPR_VSET_MAX_SECTORS);
4513 if (ipr_is_gata(res) && res->sata_port)
4514 ap = res->sata_port->ap;
4515 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4518 scsi_adjust_queue_depth(sdev, 0, IPR_MAX_CMD_PER_ATA_LUN);
4519 ata_sas_slave_configure(sdev, ap);
4521 scsi_adjust_queue_depth(sdev, 0, sdev->host->cmd_per_lun);
4523 sdev_printk(KERN_INFO, sdev, "Resource path: %s\n",
4524 ipr_format_res_path(res->res_path, buffer,
4528 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4533 * ipr_ata_slave_alloc - Prepare for commands to a SATA device
4534 * @sdev: scsi device struct
4536 * This function initializes an ATA port so that future commands
4537 * sent through queuecommand will work.
4542 static int ipr_ata_slave_alloc(struct scsi_device *sdev)
4544 struct ipr_sata_port *sata_port = NULL;
4548 if (sdev->sdev_target)
4549 sata_port = sdev->sdev_target->hostdata;
4551 rc = ata_sas_port_init(sata_port->ap);
4553 ipr_slave_destroy(sdev);
4560 * ipr_slave_alloc - Prepare for commands to a device.
4561 * @sdev: scsi device struct
4563 * This function saves a pointer to the resource entry
4564 * in the scsi device struct if the device exists. We
4565 * can then use this pointer in ipr_queuecommand when
4566 * handling new commands.
4569 * 0 on success / -ENXIO if device does not exist
4571 static int ipr_slave_alloc(struct scsi_device *sdev)
4573 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) sdev->host->hostdata;
4574 struct ipr_resource_entry *res;
4575 unsigned long lock_flags;
4578 sdev->hostdata = NULL;
4580 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4582 res = ipr_find_sdev(sdev);
4587 sdev->hostdata = res;
4588 if (!ipr_is_naca_model(res))
4589 res->needs_sync_complete = 1;
4591 if (ipr_is_gata(res)) {
4592 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4593 return ipr_ata_slave_alloc(sdev);
4597 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4603 * ipr_eh_host_reset - Reset the host adapter
4604 * @scsi_cmd: scsi command struct
4609 static int __ipr_eh_host_reset(struct scsi_cmnd * scsi_cmd)
4611 struct ipr_ioa_cfg *ioa_cfg;
4615 ioa_cfg = (struct ipr_ioa_cfg *) scsi_cmd->device->host->hostdata;
4617 if (!ioa_cfg->in_reset_reload) {
4618 dev_err(&ioa_cfg->pdev->dev,
4619 "Adapter being reset as a result of error recovery.\n");
4621 if (WAIT_FOR_DUMP == ioa_cfg->sdt_state)
4622 ioa_cfg->sdt_state = GET_DUMP;
4625 rc = ipr_reset_reload(ioa_cfg, IPR_SHUTDOWN_ABBREV);
4631 static int ipr_eh_host_reset(struct scsi_cmnd * cmd)
4635 spin_lock_irq(cmd->device->host->host_lock);
4636 rc = __ipr_eh_host_reset(cmd);
4637 spin_unlock_irq(cmd->device->host->host_lock);
4643 * ipr_device_reset - Reset the device
4644 * @ioa_cfg: ioa config struct
4645 * @res: resource entry struct
4647 * This function issues a device reset to the affected device.
4648 * If the device is a SCSI device, a LUN reset will be sent
4649 * to the device first. If that does not work, a target reset
4650 * will be sent. If the device is a SATA device, a PHY reset will
4654 * 0 on success / non-zero on failure
4656 static int ipr_device_reset(struct ipr_ioa_cfg *ioa_cfg,
4657 struct ipr_resource_entry *res)
4659 struct ipr_cmnd *ipr_cmd;
4660 struct ipr_ioarcb *ioarcb;
4661 struct ipr_cmd_pkt *cmd_pkt;
4662 struct ipr_ioarcb_ata_regs *regs;
4666 ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg);
4667 ioarcb = &ipr_cmd->ioarcb;
4668 cmd_pkt = &ioarcb->cmd_pkt;
4670 if (ipr_cmd->ioa_cfg->sis64) {
4671 regs = &ipr_cmd->i.ata_ioadl.regs;
4672 ioarcb->add_cmd_parms_offset = cpu_to_be16(sizeof(*ioarcb));
4674 regs = &ioarcb->u.add_data.u.regs;
4676 ioarcb->res_handle = res->res_handle;
4677 cmd_pkt->request_type = IPR_RQTYPE_IOACMD;
4678 cmd_pkt->cdb[0] = IPR_RESET_DEVICE;
4679 if (ipr_is_gata(res)) {
4680 cmd_pkt->cdb[2] = IPR_ATA_PHY_RESET;
4681 ioarcb->add_cmd_parms_len = cpu_to_be16(sizeof(regs->flags));
4682 regs->flags |= IPR_ATA_FLAG_STATUS_ON_GOOD_COMPLETION;
4685 ipr_send_blocking_cmd(ipr_cmd, ipr_timeout, IPR_DEVICE_RESET_TIMEOUT);
4686 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
4687 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
4688 if (ipr_is_gata(res) && res->sata_port && ioasc != IPR_IOASC_IOA_WAS_RESET) {
4689 if (ipr_cmd->ioa_cfg->sis64)
4690 memcpy(&res->sata_port->ioasa, &ipr_cmd->s.ioasa64.u.gata,
4691 sizeof(struct ipr_ioasa_gata));
4693 memcpy(&res->sata_port->ioasa, &ipr_cmd->s.ioasa.u.gata,
4694 sizeof(struct ipr_ioasa_gata));
4698 return (IPR_IOASC_SENSE_KEY(ioasc) ? -EIO : 0);
4702 * ipr_sata_reset - Reset the SATA port
4703 * @link: SATA link to reset
4704 * @classes: class of the attached device
4706 * This function issues a SATA phy reset to the affected ATA link.
4709 * 0 on success / non-zero on failure
4711 static int ipr_sata_reset(struct ata_link *link, unsigned int *classes,
4712 unsigned long deadline)
4714 struct ipr_sata_port *sata_port = link->ap->private_data;
4715 struct ipr_ioa_cfg *ioa_cfg = sata_port->ioa_cfg;
4716 struct ipr_resource_entry *res;
4717 unsigned long lock_flags = 0;
4721 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4722 while(ioa_cfg->in_reset_reload) {
4723 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4724 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
4725 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4728 res = sata_port->res;
4730 rc = ipr_device_reset(ioa_cfg, res);
4731 *classes = res->ata_class;
4734 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4740 * ipr_eh_dev_reset - Reset the device
4741 * @scsi_cmd: scsi command struct
4743 * This function issues a device reset to the affected device.
4744 * A LUN reset will be sent to the device first. If that does
4745 * not work, a target reset will be sent.
4750 static int __ipr_eh_dev_reset(struct scsi_cmnd * scsi_cmd)
4752 struct ipr_cmnd *ipr_cmd;
4753 struct ipr_ioa_cfg *ioa_cfg;
4754 struct ipr_resource_entry *res;
4755 struct ata_port *ap;
4759 ioa_cfg = (struct ipr_ioa_cfg *) scsi_cmd->device->host->hostdata;
4760 res = scsi_cmd->device->hostdata;
4766 * If we are currently going through reset/reload, return failed. This will force the
4767 * mid-layer to call ipr_eh_host_reset, which will then go to sleep and wait for the
4770 if (ioa_cfg->in_reset_reload)
4772 if (ioa_cfg->ioa_is_dead)
4775 list_for_each_entry(ipr_cmd, &ioa_cfg->pending_q, queue) {
4776 if (ipr_cmd->ioarcb.res_handle == res->res_handle) {
4777 if (ipr_cmd->scsi_cmd)
4778 ipr_cmd->done = ipr_scsi_eh_done;
4780 ipr_cmd->done = ipr_sata_eh_done;
4781 if (ipr_cmd->qc && !(ipr_cmd->qc->flags & ATA_QCFLAG_FAILED)) {
4782 ipr_cmd->qc->err_mask |= AC_ERR_TIMEOUT;
4783 ipr_cmd->qc->flags |= ATA_QCFLAG_FAILED;
4788 res->resetting_device = 1;
4789 scmd_printk(KERN_ERR, scsi_cmd, "Resetting device\n");
4791 if (ipr_is_gata(res) && res->sata_port) {
4792 ap = res->sata_port->ap;
4793 spin_unlock_irq(scsi_cmd->device->host->host_lock);
4794 ata_std_error_handler(ap);
4795 spin_lock_irq(scsi_cmd->device->host->host_lock);
4797 list_for_each_entry(ipr_cmd, &ioa_cfg->pending_q, queue) {
4798 if (ipr_cmd->ioarcb.res_handle == res->res_handle) {
4804 rc = ipr_device_reset(ioa_cfg, res);
4805 res->resetting_device = 0;
4808 return (rc ? FAILED : SUCCESS);
4811 static int ipr_eh_dev_reset(struct scsi_cmnd * cmd)
4815 spin_lock_irq(cmd->device->host->host_lock);
4816 rc = __ipr_eh_dev_reset(cmd);
4817 spin_unlock_irq(cmd->device->host->host_lock);
4823 * ipr_bus_reset_done - Op done function for bus reset.
4824 * @ipr_cmd: ipr command struct
4826 * This function is the op done function for a bus reset
4831 static void ipr_bus_reset_done(struct ipr_cmnd *ipr_cmd)
4833 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
4834 struct ipr_resource_entry *res;
4837 if (!ioa_cfg->sis64)
4838 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) {
4839 if (res->res_handle == ipr_cmd->ioarcb.res_handle) {
4840 scsi_report_bus_reset(ioa_cfg->host, res->bus);
4846 * If abort has not completed, indicate the reset has, else call the
4847 * abort's done function to wake the sleeping eh thread
4849 if (ipr_cmd->sibling->sibling)
4850 ipr_cmd->sibling->sibling = NULL;
4852 ipr_cmd->sibling->done(ipr_cmd->sibling);
4854 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
4859 * ipr_abort_timeout - An abort task has timed out
4860 * @ipr_cmd: ipr command struct
4862 * This function handles when an abort task times out. If this
4863 * happens we issue a bus reset since we have resources tied
4864 * up that must be freed before returning to the midlayer.
4869 static void ipr_abort_timeout(struct ipr_cmnd *ipr_cmd)
4871 struct ipr_cmnd *reset_cmd;
4872 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
4873 struct ipr_cmd_pkt *cmd_pkt;
4874 unsigned long lock_flags = 0;
4877 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4878 if (ipr_cmd->completion.done || ioa_cfg->in_reset_reload) {
4879 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4883 sdev_printk(KERN_ERR, ipr_cmd->u.sdev, "Abort timed out. Resetting bus.\n");
4884 reset_cmd = ipr_get_free_ipr_cmnd(ioa_cfg);
4885 ipr_cmd->sibling = reset_cmd;
4886 reset_cmd->sibling = ipr_cmd;
4887 reset_cmd->ioarcb.res_handle = ipr_cmd->ioarcb.res_handle;
4888 cmd_pkt = &reset_cmd->ioarcb.cmd_pkt;
4889 cmd_pkt->request_type = IPR_RQTYPE_IOACMD;
4890 cmd_pkt->cdb[0] = IPR_RESET_DEVICE;
4891 cmd_pkt->cdb[2] = IPR_RESET_TYPE_SELECT | IPR_BUS_RESET;
4893 ipr_do_req(reset_cmd, ipr_bus_reset_done, ipr_timeout, IPR_DEVICE_RESET_TIMEOUT);
4894 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4899 * ipr_cancel_op - Cancel specified op
4900 * @scsi_cmd: scsi command struct
4902 * This function cancels specified op.
4907 static int ipr_cancel_op(struct scsi_cmnd * scsi_cmd)
4909 struct ipr_cmnd *ipr_cmd;
4910 struct ipr_ioa_cfg *ioa_cfg;
4911 struct ipr_resource_entry *res;
4912 struct ipr_cmd_pkt *cmd_pkt;
4917 ioa_cfg = (struct ipr_ioa_cfg *)scsi_cmd->device->host->hostdata;
4918 res = scsi_cmd->device->hostdata;
4920 /* If we are currently going through reset/reload, return failed.
4921 * This will force the mid-layer to call ipr_eh_host_reset,
4922 * which will then go to sleep and wait for the reset to complete
4924 if (ioa_cfg->in_reset_reload || ioa_cfg->ioa_is_dead)
4930 * If we are aborting a timed out op, chances are that the timeout was caused
4931 * by a still not detected EEH error. In such cases, reading a register will
4932 * trigger the EEH recovery infrastructure.
4934 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg);
4936 if (!ipr_is_gscsi(res))
4939 list_for_each_entry(ipr_cmd, &ioa_cfg->pending_q, queue) {
4940 if (ipr_cmd->scsi_cmd == scsi_cmd) {
4941 ipr_cmd->done = ipr_scsi_eh_done;
4950 ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg);
4951 ipr_cmd->ioarcb.res_handle = res->res_handle;
4952 cmd_pkt = &ipr_cmd->ioarcb.cmd_pkt;
4953 cmd_pkt->request_type = IPR_RQTYPE_IOACMD;
4954 cmd_pkt->cdb[0] = IPR_CANCEL_ALL_REQUESTS;
4955 ipr_cmd->u.sdev = scsi_cmd->device;
4957 scmd_printk(KERN_ERR, scsi_cmd, "Aborting command: %02X\n",
4959 ipr_send_blocking_cmd(ipr_cmd, ipr_abort_timeout, IPR_CANCEL_ALL_TIMEOUT);
4960 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
4963 * If the abort task timed out and we sent a bus reset, we will get
4964 * one the following responses to the abort
4966 if (ioasc == IPR_IOASC_BUS_WAS_RESET || ioasc == IPR_IOASC_SYNC_REQUIRED) {
4971 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
4972 if (!ipr_is_naca_model(res))
4973 res->needs_sync_complete = 1;
4976 return (IPR_IOASC_SENSE_KEY(ioasc) ? FAILED : SUCCESS);
4980 * ipr_eh_abort - Abort a single op
4981 * @scsi_cmd: scsi command struct
4986 static int ipr_eh_abort(struct scsi_cmnd * scsi_cmd)
4988 unsigned long flags;
4993 spin_lock_irqsave(scsi_cmd->device->host->host_lock, flags);
4994 rc = ipr_cancel_op(scsi_cmd);
4995 spin_unlock_irqrestore(scsi_cmd->device->host->host_lock, flags);
5002 * ipr_handle_other_interrupt - Handle "other" interrupts
5003 * @ioa_cfg: ioa config struct
5004 * @int_reg: interrupt register
5007 * IRQ_NONE / IRQ_HANDLED
5009 static irqreturn_t ipr_handle_other_interrupt(struct ipr_ioa_cfg *ioa_cfg,
5012 irqreturn_t rc = IRQ_HANDLED;
5015 int_mask_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg32);
5016 int_reg &= ~int_mask_reg;
5018 /* If an interrupt on the adapter did not occur, ignore it.
5019 * Or in the case of SIS 64, check for a stage change interrupt.
5021 if ((int_reg & IPR_PCII_OPER_INTERRUPTS) == 0) {
5022 if (ioa_cfg->sis64) {
5023 int_mask_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg);
5024 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg) & ~int_mask_reg;
5025 if (int_reg & IPR_PCII_IPL_STAGE_CHANGE) {
5027 /* clear stage change */
5028 writel(IPR_PCII_IPL_STAGE_CHANGE, ioa_cfg->regs.clr_interrupt_reg);
5029 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg) & ~int_mask_reg;
5030 list_del(&ioa_cfg->reset_cmd->queue);
5031 del_timer(&ioa_cfg->reset_cmd->timer);
5032 ipr_reset_ioa_job(ioa_cfg->reset_cmd);
5040 if (int_reg & IPR_PCII_IOA_TRANS_TO_OPER) {
5041 /* Mask the interrupt */
5042 writel(IPR_PCII_IOA_TRANS_TO_OPER, ioa_cfg->regs.set_interrupt_mask_reg);
5044 /* Clear the interrupt */
5045 writel(IPR_PCII_IOA_TRANS_TO_OPER, ioa_cfg->regs.clr_interrupt_reg);
5046 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg);
5048 list_del(&ioa_cfg->reset_cmd->queue);
5049 del_timer(&ioa_cfg->reset_cmd->timer);
5050 ipr_reset_ioa_job(ioa_cfg->reset_cmd);
5051 } else if ((int_reg & IPR_PCII_HRRQ_UPDATED) == int_reg) {
5052 if (ipr_debug && printk_ratelimit())
5053 dev_err(&ioa_cfg->pdev->dev,
5054 "Spurious interrupt detected. 0x%08X\n", int_reg);
5055 writel(IPR_PCII_HRRQ_UPDATED, ioa_cfg->regs.clr_interrupt_reg32);
5056 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg32);
5059 if (int_reg & IPR_PCII_IOA_UNIT_CHECKED)
5060 ioa_cfg->ioa_unit_checked = 1;
5062 dev_err(&ioa_cfg->pdev->dev,
5063 "Permanent IOA failure. 0x%08X\n", int_reg);
5065 if (WAIT_FOR_DUMP == ioa_cfg->sdt_state)
5066 ioa_cfg->sdt_state = GET_DUMP;
5068 ipr_mask_and_clear_interrupts(ioa_cfg, ~0);
5069 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
5076 * ipr_isr_eh - Interrupt service routine error handler
5077 * @ioa_cfg: ioa config struct
5078 * @msg: message to log
5083 static void ipr_isr_eh(struct ipr_ioa_cfg *ioa_cfg, char *msg)
5085 ioa_cfg->errors_logged++;
5086 dev_err(&ioa_cfg->pdev->dev, "%s\n", msg);
5088 if (WAIT_FOR_DUMP == ioa_cfg->sdt_state)
5089 ioa_cfg->sdt_state = GET_DUMP;
5091 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
5095 * ipr_isr - Interrupt service routine
5097 * @devp: pointer to ioa config struct
5100 * IRQ_NONE / IRQ_HANDLED
5102 static irqreturn_t ipr_isr(int irq, void *devp)
5104 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)devp;
5105 unsigned long lock_flags = 0;
5111 struct ipr_cmnd *ipr_cmd;
5112 irqreturn_t rc = IRQ_NONE;
5114 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
5116 /* If interrupts are disabled, ignore the interrupt */
5117 if (!ioa_cfg->allow_interrupts) {
5118 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
5125 while ((be32_to_cpu(*ioa_cfg->hrrq_curr) & IPR_HRRQ_TOGGLE_BIT) ==
5126 ioa_cfg->toggle_bit) {
5128 cmd_index = (be32_to_cpu(*ioa_cfg->hrrq_curr) &
5129 IPR_HRRQ_REQ_RESP_HANDLE_MASK) >> IPR_HRRQ_REQ_RESP_HANDLE_SHIFT;
5131 if (unlikely(cmd_index >= IPR_NUM_CMD_BLKS)) {
5132 ipr_isr_eh(ioa_cfg, "Invalid response handle from IOA");
5133 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
5137 ipr_cmd = ioa_cfg->ipr_cmnd_list[cmd_index];
5139 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
5141 ipr_trc_hook(ipr_cmd, IPR_TRACE_FINISH, ioasc);
5143 list_del(&ipr_cmd->queue);
5144 del_timer(&ipr_cmd->timer);
5145 ipr_cmd->done(ipr_cmd);
5149 if (ioa_cfg->hrrq_curr < ioa_cfg->hrrq_end) {
5150 ioa_cfg->hrrq_curr++;
5152 ioa_cfg->hrrq_curr = ioa_cfg->hrrq_start;
5153 ioa_cfg->toggle_bit ^= 1u;
5157 if (ipr_cmd != NULL) {
5158 /* Clear the PCI interrupt */
5161 writel(IPR_PCII_HRRQ_UPDATED, ioa_cfg->regs.clr_interrupt_reg32);
5162 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg32);
5163 } while (int_reg & IPR_PCII_HRRQ_UPDATED &&
5164 num_hrrq++ < IPR_MAX_HRRQ_RETRIES);
5166 } else if (rc == IRQ_NONE && irq_none == 0) {
5167 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg32);
5169 } else if (num_hrrq == IPR_MAX_HRRQ_RETRIES &&
5170 int_reg & IPR_PCII_HRRQ_UPDATED) {
5171 ipr_isr_eh(ioa_cfg, "Error clearing HRRQ");
5172 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
5178 if (unlikely(rc == IRQ_NONE))
5179 rc = ipr_handle_other_interrupt(ioa_cfg, int_reg);
5181 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
5186 * ipr_build_ioadl64 - Build a scatter/gather list and map the buffer
5187 * @ioa_cfg: ioa config struct
5188 * @ipr_cmd: ipr command struct
5191 * 0 on success / -1 on failure
5193 static int ipr_build_ioadl64(struct ipr_ioa_cfg *ioa_cfg,
5194 struct ipr_cmnd *ipr_cmd)
5197 struct scatterlist *sg;
5199 u32 ioadl_flags = 0;
5200 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd;
5201 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
5202 struct ipr_ioadl64_desc *ioadl64 = ipr_cmd->i.ioadl64;
5204 length = scsi_bufflen(scsi_cmd);
5208 nseg = scsi_dma_map(scsi_cmd);
5210 if (printk_ratelimit())
5211 dev_err(&ioa_cfg->pdev->dev, "pci_map_sg failed!\n");
5215 ipr_cmd->dma_use_sg = nseg;
5217 ioarcb->data_transfer_length = cpu_to_be32(length);
5219 cpu_to_be32(sizeof(struct ipr_ioadl64_desc) * ipr_cmd->dma_use_sg);
5221 if (scsi_cmd->sc_data_direction == DMA_TO_DEVICE) {
5222 ioadl_flags = IPR_IOADL_FLAGS_WRITE;
5223 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ;
5224 } else if (scsi_cmd->sc_data_direction == DMA_FROM_DEVICE)
5225 ioadl_flags = IPR_IOADL_FLAGS_READ;
5227 scsi_for_each_sg(scsi_cmd, sg, ipr_cmd->dma_use_sg, i) {
5228 ioadl64[i].flags = cpu_to_be32(ioadl_flags);
5229 ioadl64[i].data_len = cpu_to_be32(sg_dma_len(sg));
5230 ioadl64[i].address = cpu_to_be64(sg_dma_address(sg));
5233 ioadl64[i-1].flags |= cpu_to_be32(IPR_IOADL_FLAGS_LAST);
5238 * ipr_build_ioadl - Build a scatter/gather list and map the buffer
5239 * @ioa_cfg: ioa config struct
5240 * @ipr_cmd: ipr command struct
5243 * 0 on success / -1 on failure
5245 static int ipr_build_ioadl(struct ipr_ioa_cfg *ioa_cfg,
5246 struct ipr_cmnd *ipr_cmd)
5249 struct scatterlist *sg;
5251 u32 ioadl_flags = 0;
5252 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd;
5253 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
5254 struct ipr_ioadl_desc *ioadl = ipr_cmd->i.ioadl;
5256 length = scsi_bufflen(scsi_cmd);
5260 nseg = scsi_dma_map(scsi_cmd);
5262 dev_err(&ioa_cfg->pdev->dev, "pci_map_sg failed!\n");
5266 ipr_cmd->dma_use_sg = nseg;
5268 if (scsi_cmd->sc_data_direction == DMA_TO_DEVICE) {
5269 ioadl_flags = IPR_IOADL_FLAGS_WRITE;
5270 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ;
5271 ioarcb->data_transfer_length = cpu_to_be32(length);
5273 cpu_to_be32(sizeof(struct ipr_ioadl_desc) * ipr_cmd->dma_use_sg);
5274 } else if (scsi_cmd->sc_data_direction == DMA_FROM_DEVICE) {
5275 ioadl_flags = IPR_IOADL_FLAGS_READ;
5276 ioarcb->read_data_transfer_length = cpu_to_be32(length);
5277 ioarcb->read_ioadl_len =
5278 cpu_to_be32(sizeof(struct ipr_ioadl_desc) * ipr_cmd->dma_use_sg);
5281 if (ipr_cmd->dma_use_sg <= ARRAY_SIZE(ioarcb->u.add_data.u.ioadl)) {
5282 ioadl = ioarcb->u.add_data.u.ioadl;
5283 ioarcb->write_ioadl_addr = cpu_to_be32((ipr_cmd->dma_addr) +
5284 offsetof(struct ipr_ioarcb, u.add_data));
5285 ioarcb->read_ioadl_addr = ioarcb->write_ioadl_addr;
5288 scsi_for_each_sg(scsi_cmd, sg, ipr_cmd->dma_use_sg, i) {
5289 ioadl[i].flags_and_data_len =
5290 cpu_to_be32(ioadl_flags | sg_dma_len(sg));
5291 ioadl[i].address = cpu_to_be32(sg_dma_address(sg));
5294 ioadl[i-1].flags_and_data_len |= cpu_to_be32(IPR_IOADL_FLAGS_LAST);
5299 * ipr_get_task_attributes - Translate SPI Q-Tag to task attributes
5300 * @scsi_cmd: scsi command struct
5305 static u8 ipr_get_task_attributes(struct scsi_cmnd *scsi_cmd)
5308 u8 rc = IPR_FLAGS_LO_UNTAGGED_TASK;
5310 if (scsi_populate_tag_msg(scsi_cmd, tag)) {
5312 case MSG_SIMPLE_TAG:
5313 rc = IPR_FLAGS_LO_SIMPLE_TASK;
5316 rc = IPR_FLAGS_LO_HEAD_OF_Q_TASK;
5318 case MSG_ORDERED_TAG:
5319 rc = IPR_FLAGS_LO_ORDERED_TASK;
5328 * ipr_erp_done - Process completion of ERP for a device
5329 * @ipr_cmd: ipr command struct
5331 * This function copies the sense buffer into the scsi_cmd
5332 * struct and pushes the scsi_done function.
5337 static void ipr_erp_done(struct ipr_cmnd *ipr_cmd)
5339 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd;
5340 struct ipr_resource_entry *res = scsi_cmd->device->hostdata;
5341 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
5342 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
5344 if (IPR_IOASC_SENSE_KEY(ioasc) > 0) {
5345 scsi_cmd->result |= (DID_ERROR << 16);
5346 scmd_printk(KERN_ERR, scsi_cmd,
5347 "Request Sense failed with IOASC: 0x%08X\n", ioasc);
5349 memcpy(scsi_cmd->sense_buffer, ipr_cmd->sense_buffer,
5350 SCSI_SENSE_BUFFERSIZE);
5354 if (!ipr_is_naca_model(res))
5355 res->needs_sync_complete = 1;
5358 scsi_dma_unmap(ipr_cmd->scsi_cmd);
5359 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
5360 scsi_cmd->scsi_done(scsi_cmd);
5364 * ipr_reinit_ipr_cmnd_for_erp - Re-initialize a cmnd block to be used for ERP
5365 * @ipr_cmd: ipr command struct
5370 static void ipr_reinit_ipr_cmnd_for_erp(struct ipr_cmnd *ipr_cmd)
5372 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
5373 struct ipr_ioasa *ioasa = &ipr_cmd->s.ioasa;
5374 dma_addr_t dma_addr = ipr_cmd->dma_addr;
5376 memset(&ioarcb->cmd_pkt, 0, sizeof(struct ipr_cmd_pkt));
5377 ioarcb->data_transfer_length = 0;
5378 ioarcb->read_data_transfer_length = 0;
5379 ioarcb->ioadl_len = 0;
5380 ioarcb->read_ioadl_len = 0;
5381 ioasa->hdr.ioasc = 0;
5382 ioasa->hdr.residual_data_len = 0;
5384 if (ipr_cmd->ioa_cfg->sis64)
5385 ioarcb->u.sis64_addr_data.data_ioadl_addr =
5386 cpu_to_be64(dma_addr + offsetof(struct ipr_cmnd, i.ioadl64));
5388 ioarcb->write_ioadl_addr =
5389 cpu_to_be32(dma_addr + offsetof(struct ipr_cmnd, i.ioadl));
5390 ioarcb->read_ioadl_addr = ioarcb->write_ioadl_addr;
5395 * ipr_erp_request_sense - Send request sense to a device
5396 * @ipr_cmd: ipr command struct
5398 * This function sends a request sense to a device as a result
5399 * of a check condition.
5404 static void ipr_erp_request_sense(struct ipr_cmnd *ipr_cmd)
5406 struct ipr_cmd_pkt *cmd_pkt = &ipr_cmd->ioarcb.cmd_pkt;
5407 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
5409 if (IPR_IOASC_SENSE_KEY(ioasc) > 0) {
5410 ipr_erp_done(ipr_cmd);
5414 ipr_reinit_ipr_cmnd_for_erp(ipr_cmd);
5416 cmd_pkt->request_type = IPR_RQTYPE_SCSICDB;
5417 cmd_pkt->cdb[0] = REQUEST_SENSE;
5418 cmd_pkt->cdb[4] = SCSI_SENSE_BUFFERSIZE;
5419 cmd_pkt->flags_hi |= IPR_FLAGS_HI_SYNC_OVERRIDE;
5420 cmd_pkt->flags_hi |= IPR_FLAGS_HI_NO_ULEN_CHK;
5421 cmd_pkt->timeout = cpu_to_be16(IPR_REQUEST_SENSE_TIMEOUT / HZ);
5423 ipr_init_ioadl(ipr_cmd, ipr_cmd->sense_buffer_dma,
5424 SCSI_SENSE_BUFFERSIZE, IPR_IOADL_FLAGS_READ_LAST);
5426 ipr_do_req(ipr_cmd, ipr_erp_done, ipr_timeout,
5427 IPR_REQUEST_SENSE_TIMEOUT * 2);
5431 * ipr_erp_cancel_all - Send cancel all to a device
5432 * @ipr_cmd: ipr command struct
5434 * This function sends a cancel all to a device to clear the
5435 * queue. If we are running TCQ on the device, QERR is set to 1,
5436 * which means all outstanding ops have been dropped on the floor.
5437 * Cancel all will return them to us.
5442 static void ipr_erp_cancel_all(struct ipr_cmnd *ipr_cmd)
5444 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd;
5445 struct ipr_resource_entry *res = scsi_cmd->device->hostdata;
5446 struct ipr_cmd_pkt *cmd_pkt;
5450 ipr_reinit_ipr_cmnd_for_erp(ipr_cmd);
5452 if (!scsi_get_tag_type(scsi_cmd->device)) {
5453 ipr_erp_request_sense(ipr_cmd);
5457 cmd_pkt = &ipr_cmd->ioarcb.cmd_pkt;
5458 cmd_pkt->request_type = IPR_RQTYPE_IOACMD;
5459 cmd_pkt->cdb[0] = IPR_CANCEL_ALL_REQUESTS;
5461 ipr_do_req(ipr_cmd, ipr_erp_request_sense, ipr_timeout,
5462 IPR_CANCEL_ALL_TIMEOUT);
5466 * ipr_dump_ioasa - Dump contents of IOASA
5467 * @ioa_cfg: ioa config struct
5468 * @ipr_cmd: ipr command struct
5469 * @res: resource entry struct
5471 * This function is invoked by the interrupt handler when ops
5472 * fail. It will log the IOASA if appropriate. Only called
5478 static void ipr_dump_ioasa(struct ipr_ioa_cfg *ioa_cfg,
5479 struct ipr_cmnd *ipr_cmd, struct ipr_resource_entry *res)
5483 u32 ioasc, fd_ioasc;
5484 struct ipr_ioasa *ioasa = &ipr_cmd->s.ioasa;
5485 __be32 *ioasa_data = (__be32 *)ioasa;
5488 ioasc = be32_to_cpu(ioasa->hdr.ioasc) & IPR_IOASC_IOASC_MASK;
5489 fd_ioasc = be32_to_cpu(ioasa->hdr.fd_ioasc) & IPR_IOASC_IOASC_MASK;
5494 if (ioa_cfg->log_level < IPR_DEFAULT_LOG_LEVEL)
5497 if (ioasc == IPR_IOASC_BUS_WAS_RESET && fd_ioasc)
5498 error_index = ipr_get_error(fd_ioasc);
5500 error_index = ipr_get_error(ioasc);
5502 if (ioa_cfg->log_level < IPR_MAX_LOG_LEVEL) {
5503 /* Don't log an error if the IOA already logged one */
5504 if (ioasa->hdr.ilid != 0)
5507 if (!ipr_is_gscsi(res))
5510 if (ipr_error_table[error_index].log_ioasa == 0)
5514 ipr_res_err(ioa_cfg, res, "%s\n", ipr_error_table[error_index].error);
5516 data_len = be16_to_cpu(ioasa->hdr.ret_stat_len);
5517 if (ioa_cfg->sis64 && sizeof(struct ipr_ioasa64) < data_len)
5518 data_len = sizeof(struct ipr_ioasa64);
5519 else if (!ioa_cfg->sis64 && sizeof(struct ipr_ioasa) < data_len)
5520 data_len = sizeof(struct ipr_ioasa);
5522 ipr_err("IOASA Dump:\n");
5524 for (i = 0; i < data_len / 4; i += 4) {
5525 ipr_err("%08X: %08X %08X %08X %08X\n", i*4,
5526 be32_to_cpu(ioasa_data[i]),
5527 be32_to_cpu(ioasa_data[i+1]),
5528 be32_to_cpu(ioasa_data[i+2]),
5529 be32_to_cpu(ioasa_data[i+3]));
5534 * ipr_gen_sense - Generate SCSI sense data from an IOASA
5536 * @sense_buf: sense data buffer
5541 static void ipr_gen_sense(struct ipr_cmnd *ipr_cmd)
5544 u8 *sense_buf = ipr_cmd->scsi_cmd->sense_buffer;
5545 struct ipr_resource_entry *res = ipr_cmd->scsi_cmd->device->hostdata;
5546 struct ipr_ioasa *ioasa = &ipr_cmd->s.ioasa;
5547 u32 ioasc = be32_to_cpu(ioasa->hdr.ioasc);
5549 memset(sense_buf, 0, SCSI_SENSE_BUFFERSIZE);
5551 if (ioasc >= IPR_FIRST_DRIVER_IOASC)
5554 ipr_cmd->scsi_cmd->result = SAM_STAT_CHECK_CONDITION;
5556 if (ipr_is_vset_device(res) &&
5557 ioasc == IPR_IOASC_MED_DO_NOT_REALLOC &&
5558 ioasa->u.vset.failing_lba_hi != 0) {
5559 sense_buf[0] = 0x72;
5560 sense_buf[1] = IPR_IOASC_SENSE_KEY(ioasc);
5561 sense_buf[2] = IPR_IOASC_SENSE_CODE(ioasc);
5562 sense_buf[3] = IPR_IOASC_SENSE_QUAL(ioasc);
5566 sense_buf[9] = 0x0A;
5567 sense_buf[10] = 0x80;
5569 failing_lba = be32_to_cpu(ioasa->u.vset.failing_lba_hi);
5571 sense_buf[12] = (failing_lba & 0xff000000) >> 24;
5572 sense_buf[13] = (failing_lba & 0x00ff0000) >> 16;
5573 sense_buf[14] = (failing_lba & 0x0000ff00) >> 8;
5574 sense_buf[15] = failing_lba & 0x000000ff;
5576 failing_lba = be32_to_cpu(ioasa->u.vset.failing_lba_lo);
5578 sense_buf[16] = (failing_lba & 0xff000000) >> 24;
5579 sense_buf[17] = (failing_lba & 0x00ff0000) >> 16;
5580 sense_buf[18] = (failing_lba & 0x0000ff00) >> 8;
5581 sense_buf[19] = failing_lba & 0x000000ff;
5583 sense_buf[0] = 0x70;
5584 sense_buf[2] = IPR_IOASC_SENSE_KEY(ioasc);
5585 sense_buf[12] = IPR_IOASC_SENSE_CODE(ioasc);
5586 sense_buf[13] = IPR_IOASC_SENSE_QUAL(ioasc);
5588 /* Illegal request */
5589 if ((IPR_IOASC_SENSE_KEY(ioasc) == 0x05) &&
5590 (be32_to_cpu(ioasa->hdr.ioasc_specific) & IPR_FIELD_POINTER_VALID)) {
5591 sense_buf[7] = 10; /* additional length */
5593 /* IOARCB was in error */
5594 if (IPR_IOASC_SENSE_CODE(ioasc) == 0x24)
5595 sense_buf[15] = 0xC0;
5596 else /* Parameter data was invalid */
5597 sense_buf[15] = 0x80;
5600 ((IPR_FIELD_POINTER_MASK &
5601 be32_to_cpu(ioasa->hdr.ioasc_specific)) >> 8) & 0xff;
5603 (IPR_FIELD_POINTER_MASK &
5604 be32_to_cpu(ioasa->hdr.ioasc_specific)) & 0xff;
5606 if (ioasc == IPR_IOASC_MED_DO_NOT_REALLOC) {
5607 if (ipr_is_vset_device(res))
5608 failing_lba = be32_to_cpu(ioasa->u.vset.failing_lba_lo);
5610 failing_lba = be32_to_cpu(ioasa->u.dasd.failing_lba);
5612 sense_buf[0] |= 0x80; /* Or in the Valid bit */
5613 sense_buf[3] = (failing_lba & 0xff000000) >> 24;
5614 sense_buf[4] = (failing_lba & 0x00ff0000) >> 16;
5615 sense_buf[5] = (failing_lba & 0x0000ff00) >> 8;
5616 sense_buf[6] = failing_lba & 0x000000ff;
5619 sense_buf[7] = 6; /* additional length */
5625 * ipr_get_autosense - Copy autosense data to sense buffer
5626 * @ipr_cmd: ipr command struct
5628 * This function copies the autosense buffer to the buffer
5629 * in the scsi_cmd, if there is autosense available.
5632 * 1 if autosense was available / 0 if not
5634 static int ipr_get_autosense(struct ipr_cmnd *ipr_cmd)
5636 struct ipr_ioasa *ioasa = &ipr_cmd->s.ioasa;
5637 struct ipr_ioasa64 *ioasa64 = &ipr_cmd->s.ioasa64;
5639 if ((be32_to_cpu(ioasa->hdr.ioasc_specific) & IPR_AUTOSENSE_VALID) == 0)
5642 if (ipr_cmd->ioa_cfg->sis64)
5643 memcpy(ipr_cmd->scsi_cmd->sense_buffer, ioasa64->auto_sense.data,
5644 min_t(u16, be16_to_cpu(ioasa64->auto_sense.auto_sense_len),
5645 SCSI_SENSE_BUFFERSIZE));
5647 memcpy(ipr_cmd->scsi_cmd->sense_buffer, ioasa->auto_sense.data,
5648 min_t(u16, be16_to_cpu(ioasa->auto_sense.auto_sense_len),
5649 SCSI_SENSE_BUFFERSIZE));
5654 * ipr_erp_start - Process an error response for a SCSI op
5655 * @ioa_cfg: ioa config struct
5656 * @ipr_cmd: ipr command struct
5658 * This function determines whether or not to initiate ERP
5659 * on the affected device.
5664 static void ipr_erp_start(struct ipr_ioa_cfg *ioa_cfg,
5665 struct ipr_cmnd *ipr_cmd)
5667 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd;
5668 struct ipr_resource_entry *res = scsi_cmd->device->hostdata;
5669 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
5670 u32 masked_ioasc = ioasc & IPR_IOASC_IOASC_MASK;
5673 ipr_scsi_eh_done(ipr_cmd);
5677 if (!ipr_is_gscsi(res) && masked_ioasc != IPR_IOASC_HW_DEV_BUS_STATUS)
5678 ipr_gen_sense(ipr_cmd);
5680 ipr_dump_ioasa(ioa_cfg, ipr_cmd, res);
5682 switch (masked_ioasc) {
5683 case IPR_IOASC_ABORTED_CMD_TERM_BY_HOST:
5684 if (ipr_is_naca_model(res))
5685 scsi_cmd->result |= (DID_ABORT << 16);
5687 scsi_cmd->result |= (DID_IMM_RETRY << 16);
5689 case IPR_IOASC_IR_RESOURCE_HANDLE:
5690 case IPR_IOASC_IR_NO_CMDS_TO_2ND_IOA:
5691 scsi_cmd->result |= (DID_NO_CONNECT << 16);
5693 case IPR_IOASC_HW_SEL_TIMEOUT:
5694 scsi_cmd->result |= (DID_NO_CONNECT << 16);
5695 if (!ipr_is_naca_model(res))
5696 res->needs_sync_complete = 1;
5698 case IPR_IOASC_SYNC_REQUIRED:
5700 res->needs_sync_complete = 1;
5701 scsi_cmd->result |= (DID_IMM_RETRY << 16);
5703 case IPR_IOASC_MED_DO_NOT_REALLOC: /* prevent retries */
5704 case IPR_IOASA_IR_DUAL_IOA_DISABLED:
5705 scsi_cmd->result |= (DID_PASSTHROUGH << 16);
5707 case IPR_IOASC_BUS_WAS_RESET:
5708 case IPR_IOASC_BUS_WAS_RESET_BY_OTHER:
5710 * Report the bus reset and ask for a retry. The device
5711 * will give CC/UA the next command.
5713 if (!res->resetting_device)
5714 scsi_report_bus_reset(ioa_cfg->host, scsi_cmd->device->channel);
5715 scsi_cmd->result |= (DID_ERROR << 16);
5716 if (!ipr_is_naca_model(res))
5717 res->needs_sync_complete = 1;
5719 case IPR_IOASC_HW_DEV_BUS_STATUS:
5720 scsi_cmd->result |= IPR_IOASC_SENSE_STATUS(ioasc);
5721 if (IPR_IOASC_SENSE_STATUS(ioasc) == SAM_STAT_CHECK_CONDITION) {
5722 if (!ipr_get_autosense(ipr_cmd)) {
5723 if (!ipr_is_naca_model(res)) {
5724 ipr_erp_cancel_all(ipr_cmd);
5729 if (!ipr_is_naca_model(res))
5730 res->needs_sync_complete = 1;
5732 case IPR_IOASC_NR_INIT_CMD_REQUIRED:
5735 if (IPR_IOASC_SENSE_KEY(ioasc) > RECOVERED_ERROR)
5736 scsi_cmd->result |= (DID_ERROR << 16);
5737 if (!ipr_is_vset_device(res) && !ipr_is_naca_model(res))
5738 res->needs_sync_complete = 1;
5742 scsi_dma_unmap(ipr_cmd->scsi_cmd);
5743 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
5744 scsi_cmd->scsi_done(scsi_cmd);
5748 * ipr_scsi_done - mid-layer done function
5749 * @ipr_cmd: ipr command struct
5751 * This function is invoked by the interrupt handler for
5752 * ops generated by the SCSI mid-layer
5757 static void ipr_scsi_done(struct ipr_cmnd *ipr_cmd)
5759 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
5760 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd;
5761 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
5763 scsi_set_resid(scsi_cmd, be32_to_cpu(ipr_cmd->s.ioasa.hdr.residual_data_len));
5765 if (likely(IPR_IOASC_SENSE_KEY(ioasc) == 0)) {
5766 scsi_dma_unmap(ipr_cmd->scsi_cmd);
5767 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
5768 scsi_cmd->scsi_done(scsi_cmd);
5770 ipr_erp_start(ioa_cfg, ipr_cmd);
5774 * ipr_queuecommand - Queue a mid-layer request
5775 * @scsi_cmd: scsi command struct
5776 * @done: done function
5778 * This function queues a request generated by the mid-layer.
5782 * SCSI_MLQUEUE_DEVICE_BUSY if device is busy
5783 * SCSI_MLQUEUE_HOST_BUSY if host is busy
5785 static int ipr_queuecommand_lck(struct scsi_cmnd *scsi_cmd,
5786 void (*done) (struct scsi_cmnd *))
5788 struct ipr_ioa_cfg *ioa_cfg;
5789 struct ipr_resource_entry *res;
5790 struct ipr_ioarcb *ioarcb;
5791 struct ipr_cmnd *ipr_cmd;
5794 scsi_cmd->scsi_done = done;
5795 ioa_cfg = (struct ipr_ioa_cfg *)scsi_cmd->device->host->hostdata;
5796 res = scsi_cmd->device->hostdata;
5797 scsi_cmd->result = (DID_OK << 16);
5800 * We are currently blocking all devices due to a host reset
5801 * We have told the host to stop giving us new requests, but
5802 * ERP ops don't count. FIXME
5804 if (unlikely(!ioa_cfg->allow_cmds && !ioa_cfg->ioa_is_dead))
5805 return SCSI_MLQUEUE_HOST_BUSY;
5808 * FIXME - Create scsi_set_host_offline interface
5809 * and the ioa_is_dead check can be removed
5811 if (unlikely(ioa_cfg->ioa_is_dead || !res)) {
5812 memset(scsi_cmd->sense_buffer, 0, SCSI_SENSE_BUFFERSIZE);
5813 scsi_cmd->result = (DID_NO_CONNECT << 16);
5814 scsi_cmd->scsi_done(scsi_cmd);
5818 if (ipr_is_gata(res) && res->sata_port)
5819 return ata_sas_queuecmd(scsi_cmd, res->sata_port->ap);
5821 ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg);
5822 ioarcb = &ipr_cmd->ioarcb;
5823 list_add_tail(&ipr_cmd->queue, &ioa_cfg->pending_q);
5825 memcpy(ioarcb->cmd_pkt.cdb, scsi_cmd->cmnd, scsi_cmd->cmd_len);
5826 ipr_cmd->scsi_cmd = scsi_cmd;
5827 ioarcb->res_handle = res->res_handle;
5828 ipr_cmd->done = ipr_scsi_done;
5829 ipr_trc_hook(ipr_cmd, IPR_TRACE_START, IPR_GET_RES_PHYS_LOC(res));
5831 if (ipr_is_gscsi(res) || ipr_is_vset_device(res)) {
5832 if (scsi_cmd->underflow == 0)
5833 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_NO_ULEN_CHK;
5835 if (res->needs_sync_complete) {
5836 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_SYNC_COMPLETE;
5837 res->needs_sync_complete = 0;
5840 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_NO_LINK_DESC;
5841 if (ipr_is_gscsi(res))
5842 ioarcb->cmd_pkt.flags_lo |= IPR_FLAGS_LO_DELAY_AFTER_RST;
5843 ioarcb->cmd_pkt.flags_lo |= IPR_FLAGS_LO_ALIGNED_BFR;
5844 ioarcb->cmd_pkt.flags_lo |= ipr_get_task_attributes(scsi_cmd);
5847 if (scsi_cmd->cmnd[0] >= 0xC0 &&
5848 (!ipr_is_gscsi(res) || scsi_cmd->cmnd[0] == IPR_QUERY_RSRC_STATE))
5849 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_IOACMD;
5851 if (likely(rc == 0)) {
5853 rc = ipr_build_ioadl64(ioa_cfg, ipr_cmd);
5855 rc = ipr_build_ioadl(ioa_cfg, ipr_cmd);
5858 if (likely(rc == 0)) {
5860 ipr_send_command(ipr_cmd);
5862 list_move_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
5863 return SCSI_MLQUEUE_HOST_BUSY;
5869 static DEF_SCSI_QCMD(ipr_queuecommand)
5872 * ipr_ioctl - IOCTL handler
5873 * @sdev: scsi device struct
5878 * 0 on success / other on failure
5880 static int ipr_ioctl(struct scsi_device *sdev, int cmd, void __user *arg)
5882 struct ipr_resource_entry *res;
5884 res = (struct ipr_resource_entry *)sdev->hostdata;
5885 if (res && ipr_is_gata(res)) {
5886 if (cmd == HDIO_GET_IDENTITY)
5888 return ata_sas_scsi_ioctl(res->sata_port->ap, sdev, cmd, arg);
5895 * ipr_info - Get information about the card/driver
5896 * @scsi_host: scsi host struct
5899 * pointer to buffer with description string
5901 static const char * ipr_ioa_info(struct Scsi_Host *host)
5903 static char buffer[512];
5904 struct ipr_ioa_cfg *ioa_cfg;
5905 unsigned long lock_flags = 0;
5907 ioa_cfg = (struct ipr_ioa_cfg *) host->hostdata;
5909 spin_lock_irqsave(host->host_lock, lock_flags);
5910 sprintf(buffer, "IBM %X Storage Adapter", ioa_cfg->type);
5911 spin_unlock_irqrestore(host->host_lock, lock_flags);
5916 static struct scsi_host_template driver_template = {
5917 .module = THIS_MODULE,
5919 .info = ipr_ioa_info,
5921 .queuecommand = ipr_queuecommand,
5922 .eh_abort_handler = ipr_eh_abort,
5923 .eh_device_reset_handler = ipr_eh_dev_reset,
5924 .eh_host_reset_handler = ipr_eh_host_reset,
5925 .slave_alloc = ipr_slave_alloc,
5926 .slave_configure = ipr_slave_configure,
5927 .slave_destroy = ipr_slave_destroy,
5928 .target_alloc = ipr_target_alloc,
5929 .target_destroy = ipr_target_destroy,
5930 .change_queue_depth = ipr_change_queue_depth,
5931 .change_queue_type = ipr_change_queue_type,
5932 .bios_param = ipr_biosparam,
5933 .can_queue = IPR_MAX_COMMANDS,
5935 .sg_tablesize = IPR_MAX_SGLIST,
5936 .max_sectors = IPR_IOA_MAX_SECTORS,
5937 .cmd_per_lun = IPR_MAX_CMD_PER_LUN,
5938 .use_clustering = ENABLE_CLUSTERING,
5939 .shost_attrs = ipr_ioa_attrs,
5940 .sdev_attrs = ipr_dev_attrs,
5941 .proc_name = IPR_NAME
5945 * ipr_ata_phy_reset - libata phy_reset handler
5946 * @ap: ata port to reset
5949 static void ipr_ata_phy_reset(struct ata_port *ap)
5951 unsigned long flags;
5952 struct ipr_sata_port *sata_port = ap->private_data;
5953 struct ipr_resource_entry *res = sata_port->res;
5954 struct ipr_ioa_cfg *ioa_cfg = sata_port->ioa_cfg;
5958 spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
5959 while(ioa_cfg->in_reset_reload) {
5960 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
5961 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
5962 spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
5965 if (!ioa_cfg->allow_cmds)
5968 rc = ipr_device_reset(ioa_cfg, res);
5971 ap->link.device[0].class = ATA_DEV_NONE;
5975 ap->link.device[0].class = res->ata_class;
5976 if (ap->link.device[0].class == ATA_DEV_UNKNOWN)
5977 ap->link.device[0].class = ATA_DEV_NONE;
5980 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
5985 * ipr_ata_post_internal - Cleanup after an internal command
5986 * @qc: ATA queued command
5991 static void ipr_ata_post_internal(struct ata_queued_cmd *qc)
5993 struct ipr_sata_port *sata_port = qc->ap->private_data;
5994 struct ipr_ioa_cfg *ioa_cfg = sata_port->ioa_cfg;
5995 struct ipr_cmnd *ipr_cmd;
5996 unsigned long flags;
5998 spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
5999 while(ioa_cfg->in_reset_reload) {
6000 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
6001 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
6002 spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
6005 list_for_each_entry(ipr_cmd, &ioa_cfg->pending_q, queue) {
6006 if (ipr_cmd->qc == qc) {
6007 ipr_device_reset(ioa_cfg, sata_port->res);
6011 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
6015 * ipr_copy_sata_tf - Copy a SATA taskfile to an IOA data structure
6016 * @regs: destination
6017 * @tf: source ATA taskfile
6022 static void ipr_copy_sata_tf(struct ipr_ioarcb_ata_regs *regs,
6023 struct ata_taskfile *tf)
6025 regs->feature = tf->feature;
6026 regs->nsect = tf->nsect;
6027 regs->lbal = tf->lbal;
6028 regs->lbam = tf->lbam;
6029 regs->lbah = tf->lbah;
6030 regs->device = tf->device;
6031 regs->command = tf->command;
6032 regs->hob_feature = tf->hob_feature;
6033 regs->hob_nsect = tf->hob_nsect;
6034 regs->hob_lbal = tf->hob_lbal;
6035 regs->hob_lbam = tf->hob_lbam;
6036 regs->hob_lbah = tf->hob_lbah;
6037 regs->ctl = tf->ctl;
6041 * ipr_sata_done - done function for SATA commands
6042 * @ipr_cmd: ipr command struct
6044 * This function is invoked by the interrupt handler for
6045 * ops generated by the SCSI mid-layer to SATA devices
6050 static void ipr_sata_done(struct ipr_cmnd *ipr_cmd)
6052 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6053 struct ata_queued_cmd *qc = ipr_cmd->qc;
6054 struct ipr_sata_port *sata_port = qc->ap->private_data;
6055 struct ipr_resource_entry *res = sata_port->res;
6056 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
6058 if (ipr_cmd->ioa_cfg->sis64)
6059 memcpy(&sata_port->ioasa, &ipr_cmd->s.ioasa64.u.gata,
6060 sizeof(struct ipr_ioasa_gata));
6062 memcpy(&sata_port->ioasa, &ipr_cmd->s.ioasa.u.gata,
6063 sizeof(struct ipr_ioasa_gata));
6064 ipr_dump_ioasa(ioa_cfg, ipr_cmd, res);
6066 if (be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc_specific) & IPR_ATA_DEVICE_WAS_RESET)
6067 scsi_report_device_reset(ioa_cfg->host, res->bus, res->target);
6069 if (IPR_IOASC_SENSE_KEY(ioasc) > RECOVERED_ERROR)
6070 qc->err_mask |= __ac_err_mask(sata_port->ioasa.status);
6072 qc->err_mask |= ac_err_mask(sata_port->ioasa.status);
6073 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
6074 ata_qc_complete(qc);
6078 * ipr_build_ata_ioadl64 - Build an ATA scatter/gather list
6079 * @ipr_cmd: ipr command struct
6080 * @qc: ATA queued command
6083 static void ipr_build_ata_ioadl64(struct ipr_cmnd *ipr_cmd,
6084 struct ata_queued_cmd *qc)
6086 u32 ioadl_flags = 0;
6087 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
6088 struct ipr_ioadl64_desc *ioadl64 = ipr_cmd->i.ioadl64;
6089 struct ipr_ioadl64_desc *last_ioadl64 = NULL;
6090 int len = qc->nbytes;
6091 struct scatterlist *sg;
6093 dma_addr_t dma_addr = ipr_cmd->dma_addr;
6098 if (qc->dma_dir == DMA_TO_DEVICE) {
6099 ioadl_flags = IPR_IOADL_FLAGS_WRITE;
6100 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ;
6101 } else if (qc->dma_dir == DMA_FROM_DEVICE)
6102 ioadl_flags = IPR_IOADL_FLAGS_READ;
6104 ioarcb->data_transfer_length = cpu_to_be32(len);
6106 cpu_to_be32(sizeof(struct ipr_ioadl64_desc) * ipr_cmd->dma_use_sg);
6107 ioarcb->u.sis64_addr_data.data_ioadl_addr =
6108 cpu_to_be64(dma_addr + offsetof(struct ipr_cmnd, i.ata_ioadl));
6110 for_each_sg(qc->sg, sg, qc->n_elem, si) {
6111 ioadl64->flags = cpu_to_be32(ioadl_flags);
6112 ioadl64->data_len = cpu_to_be32(sg_dma_len(sg));
6113 ioadl64->address = cpu_to_be64(sg_dma_address(sg));
6115 last_ioadl64 = ioadl64;
6119 if (likely(last_ioadl64))
6120 last_ioadl64->flags |= cpu_to_be32(IPR_IOADL_FLAGS_LAST);
6124 * ipr_build_ata_ioadl - Build an ATA scatter/gather list
6125 * @ipr_cmd: ipr command struct
6126 * @qc: ATA queued command
6129 static void ipr_build_ata_ioadl(struct ipr_cmnd *ipr_cmd,
6130 struct ata_queued_cmd *qc)
6132 u32 ioadl_flags = 0;
6133 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
6134 struct ipr_ioadl_desc *ioadl = ipr_cmd->i.ioadl;
6135 struct ipr_ioadl_desc *last_ioadl = NULL;
6136 int len = qc->nbytes;
6137 struct scatterlist *sg;
6143 if (qc->dma_dir == DMA_TO_DEVICE) {
6144 ioadl_flags = IPR_IOADL_FLAGS_WRITE;
6145 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ;
6146 ioarcb->data_transfer_length = cpu_to_be32(len);
6148 cpu_to_be32(sizeof(struct ipr_ioadl_desc) * ipr_cmd->dma_use_sg);
6149 } else if (qc->dma_dir == DMA_FROM_DEVICE) {
6150 ioadl_flags = IPR_IOADL_FLAGS_READ;
6151 ioarcb->read_data_transfer_length = cpu_to_be32(len);
6152 ioarcb->read_ioadl_len =
6153 cpu_to_be32(sizeof(struct ipr_ioadl_desc) * ipr_cmd->dma_use_sg);
6156 for_each_sg(qc->sg, sg, qc->n_elem, si) {
6157 ioadl->flags_and_data_len = cpu_to_be32(ioadl_flags | sg_dma_len(sg));
6158 ioadl->address = cpu_to_be32(sg_dma_address(sg));
6164 if (likely(last_ioadl))
6165 last_ioadl->flags_and_data_len |= cpu_to_be32(IPR_IOADL_FLAGS_LAST);
6169 * ipr_qc_issue - Issue a SATA qc to a device
6170 * @qc: queued command
6175 static unsigned int ipr_qc_issue(struct ata_queued_cmd *qc)
6177 struct ata_port *ap = qc->ap;
6178 struct ipr_sata_port *sata_port = ap->private_data;
6179 struct ipr_resource_entry *res = sata_port->res;
6180 struct ipr_ioa_cfg *ioa_cfg = sata_port->ioa_cfg;
6181 struct ipr_cmnd *ipr_cmd;
6182 struct ipr_ioarcb *ioarcb;
6183 struct ipr_ioarcb_ata_regs *regs;
6185 if (unlikely(!ioa_cfg->allow_cmds || ioa_cfg->ioa_is_dead))
6186 return AC_ERR_SYSTEM;
6188 ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg);
6189 ioarcb = &ipr_cmd->ioarcb;
6191 if (ioa_cfg->sis64) {
6192 regs = &ipr_cmd->i.ata_ioadl.regs;
6193 ioarcb->add_cmd_parms_offset = cpu_to_be16(sizeof(*ioarcb));
6195 regs = &ioarcb->u.add_data.u.regs;
6197 memset(regs, 0, sizeof(*regs));
6198 ioarcb->add_cmd_parms_len = cpu_to_be16(sizeof(*regs));
6200 list_add_tail(&ipr_cmd->queue, &ioa_cfg->pending_q);
6202 ipr_cmd->done = ipr_sata_done;
6203 ipr_cmd->ioarcb.res_handle = res->res_handle;
6204 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_ATA_PASSTHRU;
6205 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_NO_LINK_DESC;
6206 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_NO_ULEN_CHK;
6207 ipr_cmd->dma_use_sg = qc->n_elem;
6210 ipr_build_ata_ioadl64(ipr_cmd, qc);
6212 ipr_build_ata_ioadl(ipr_cmd, qc);
6214 regs->flags |= IPR_ATA_FLAG_STATUS_ON_GOOD_COMPLETION;
6215 ipr_copy_sata_tf(regs, &qc->tf);
6216 memcpy(ioarcb->cmd_pkt.cdb, qc->cdb, IPR_MAX_CDB_LEN);
6217 ipr_trc_hook(ipr_cmd, IPR_TRACE_START, IPR_GET_RES_PHYS_LOC(res));
6219 switch (qc->tf.protocol) {
6220 case ATA_PROT_NODATA:
6225 regs->flags |= IPR_ATA_FLAG_XFER_TYPE_DMA;
6228 case ATAPI_PROT_PIO:
6229 case ATAPI_PROT_NODATA:
6230 regs->flags |= IPR_ATA_FLAG_PACKET_CMD;
6233 case ATAPI_PROT_DMA:
6234 regs->flags |= IPR_ATA_FLAG_PACKET_CMD;
6235 regs->flags |= IPR_ATA_FLAG_XFER_TYPE_DMA;
6240 return AC_ERR_INVALID;
6245 ipr_send_command(ipr_cmd);
6251 * ipr_qc_fill_rtf - Read result TF
6252 * @qc: ATA queued command
6257 static bool ipr_qc_fill_rtf(struct ata_queued_cmd *qc)
6259 struct ipr_sata_port *sata_port = qc->ap->private_data;
6260 struct ipr_ioasa_gata *g = &sata_port->ioasa;
6261 struct ata_taskfile *tf = &qc->result_tf;
6263 tf->feature = g->error;
6264 tf->nsect = g->nsect;
6268 tf->device = g->device;
6269 tf->command = g->status;
6270 tf->hob_nsect = g->hob_nsect;
6271 tf->hob_lbal = g->hob_lbal;
6272 tf->hob_lbam = g->hob_lbam;
6273 tf->hob_lbah = g->hob_lbah;
6274 tf->ctl = g->alt_status;
6279 static struct ata_port_operations ipr_sata_ops = {
6280 .phy_reset = ipr_ata_phy_reset,
6281 .hardreset = ipr_sata_reset,
6282 .post_internal_cmd = ipr_ata_post_internal,
6283 .qc_prep = ata_noop_qc_prep,
6284 .qc_issue = ipr_qc_issue,
6285 .qc_fill_rtf = ipr_qc_fill_rtf,
6286 .port_start = ata_sas_port_start,
6287 .port_stop = ata_sas_port_stop
6290 static struct ata_port_info sata_port_info = {
6291 .flags = ATA_FLAG_SATA | ATA_FLAG_PIO_DMA,
6292 .pio_mask = ATA_PIO4_ONLY,
6293 .mwdma_mask = ATA_MWDMA2,
6294 .udma_mask = ATA_UDMA6,
6295 .port_ops = &ipr_sata_ops
6298 #ifdef CONFIG_PPC_PSERIES
6299 static const u16 ipr_blocked_processors[] = {
6311 * ipr_invalid_adapter - Determine if this adapter is supported on this hardware
6312 * @ioa_cfg: ioa cfg struct
6314 * Adapters that use Gemstone revision < 3.1 do not work reliably on
6315 * certain pSeries hardware. This function determines if the given
6316 * adapter is in one of these confgurations or not.
6319 * 1 if adapter is not supported / 0 if adapter is supported
6321 static int ipr_invalid_adapter(struct ipr_ioa_cfg *ioa_cfg)
6325 if ((ioa_cfg->type == 0x5702) && (ioa_cfg->pdev->revision < 4)) {
6326 for (i = 0; i < ARRAY_SIZE(ipr_blocked_processors); i++){
6327 if (__is_processor(ipr_blocked_processors[i]))
6334 #define ipr_invalid_adapter(ioa_cfg) 0
6338 * ipr_ioa_bringdown_done - IOA bring down completion.
6339 * @ipr_cmd: ipr command struct
6341 * This function processes the completion of an adapter bring down.
6342 * It wakes any reset sleepers.
6347 static int ipr_ioa_bringdown_done(struct ipr_cmnd *ipr_cmd)
6349 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6352 ioa_cfg->in_reset_reload = 0;
6353 ioa_cfg->reset_retries = 0;
6354 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
6355 wake_up_all(&ioa_cfg->reset_wait_q);
6357 spin_unlock_irq(ioa_cfg->host->host_lock);
6358 scsi_unblock_requests(ioa_cfg->host);
6359 spin_lock_irq(ioa_cfg->host->host_lock);
6362 return IPR_RC_JOB_RETURN;
6366 * ipr_ioa_reset_done - IOA reset completion.
6367 * @ipr_cmd: ipr command struct
6369 * This function processes the completion of an adapter reset.
6370 * It schedules any necessary mid-layer add/removes and
6371 * wakes any reset sleepers.
6376 static int ipr_ioa_reset_done(struct ipr_cmnd *ipr_cmd)
6378 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6379 struct ipr_resource_entry *res;
6380 struct ipr_hostrcb *hostrcb, *temp;
6384 ioa_cfg->in_reset_reload = 0;
6385 ioa_cfg->allow_cmds = 1;
6386 ioa_cfg->reset_cmd = NULL;
6387 ioa_cfg->doorbell |= IPR_RUNTIME_RESET;
6389 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) {
6390 if (ioa_cfg->allow_ml_add_del && (res->add_to_ml || res->del_from_ml)) {
6395 schedule_work(&ioa_cfg->work_q);
6397 list_for_each_entry_safe(hostrcb, temp, &ioa_cfg->hostrcb_free_q, queue) {
6398 list_del(&hostrcb->queue);
6399 if (i++ < IPR_NUM_LOG_HCAMS)
6400 ipr_send_hcam(ioa_cfg, IPR_HCAM_CDB_OP_CODE_LOG_DATA, hostrcb);
6402 ipr_send_hcam(ioa_cfg, IPR_HCAM_CDB_OP_CODE_CONFIG_CHANGE, hostrcb);
6405 scsi_report_bus_reset(ioa_cfg->host, IPR_VSET_BUS);
6406 dev_info(&ioa_cfg->pdev->dev, "IOA initialized.\n");
6408 ioa_cfg->reset_retries = 0;
6409 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
6410 wake_up_all(&ioa_cfg->reset_wait_q);
6412 spin_unlock(ioa_cfg->host->host_lock);
6413 scsi_unblock_requests(ioa_cfg->host);
6414 spin_lock(ioa_cfg->host->host_lock);
6416 if (!ioa_cfg->allow_cmds)
6417 scsi_block_requests(ioa_cfg->host);
6420 return IPR_RC_JOB_RETURN;
6424 * ipr_set_sup_dev_dflt - Initialize a Set Supported Device buffer
6425 * @supported_dev: supported device struct
6426 * @vpids: vendor product id struct
6431 static void ipr_set_sup_dev_dflt(struct ipr_supported_device *supported_dev,
6432 struct ipr_std_inq_vpids *vpids)
6434 memset(supported_dev, 0, sizeof(struct ipr_supported_device));
6435 memcpy(&supported_dev->vpids, vpids, sizeof(struct ipr_std_inq_vpids));
6436 supported_dev->num_records = 1;
6437 supported_dev->data_length =
6438 cpu_to_be16(sizeof(struct ipr_supported_device));
6439 supported_dev->reserved = 0;
6443 * ipr_set_supported_devs - Send Set Supported Devices for a device
6444 * @ipr_cmd: ipr command struct
6446 * This function sends a Set Supported Devices to the adapter
6449 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
6451 static int ipr_set_supported_devs(struct ipr_cmnd *ipr_cmd)
6453 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6454 struct ipr_supported_device *supp_dev = &ioa_cfg->vpd_cbs->supp_dev;
6455 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
6456 struct ipr_resource_entry *res = ipr_cmd->u.res;
6458 ipr_cmd->job_step = ipr_ioa_reset_done;
6460 list_for_each_entry_continue(res, &ioa_cfg->used_res_q, queue) {
6461 if (!ipr_is_scsi_disk(res))
6464 ipr_cmd->u.res = res;
6465 ipr_set_sup_dev_dflt(supp_dev, &res->std_inq_data.vpids);
6467 ioarcb->res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE);
6468 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ;
6469 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_IOACMD;
6471 ioarcb->cmd_pkt.cdb[0] = IPR_SET_SUPPORTED_DEVICES;
6472 ioarcb->cmd_pkt.cdb[1] = IPR_SET_ALL_SUPPORTED_DEVICES;
6473 ioarcb->cmd_pkt.cdb[7] = (sizeof(struct ipr_supported_device) >> 8) & 0xff;
6474 ioarcb->cmd_pkt.cdb[8] = sizeof(struct ipr_supported_device) & 0xff;
6476 ipr_init_ioadl(ipr_cmd,
6477 ioa_cfg->vpd_cbs_dma +
6478 offsetof(struct ipr_misc_cbs, supp_dev),
6479 sizeof(struct ipr_supported_device),
6480 IPR_IOADL_FLAGS_WRITE_LAST);
6482 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout,
6483 IPR_SET_SUP_DEVICE_TIMEOUT);
6485 if (!ioa_cfg->sis64)
6486 ipr_cmd->job_step = ipr_set_supported_devs;
6487 return IPR_RC_JOB_RETURN;
6490 return IPR_RC_JOB_CONTINUE;
6494 * ipr_get_mode_page - Locate specified mode page
6495 * @mode_pages: mode page buffer
6496 * @page_code: page code to find
6497 * @len: minimum required length for mode page
6500 * pointer to mode page / NULL on failure
6502 static void *ipr_get_mode_page(struct ipr_mode_pages *mode_pages,
6503 u32 page_code, u32 len)
6505 struct ipr_mode_page_hdr *mode_hdr;
6509 if (!mode_pages || (mode_pages->hdr.length == 0))
6512 length = (mode_pages->hdr.length + 1) - 4 - mode_pages->hdr.block_desc_len;
6513 mode_hdr = (struct ipr_mode_page_hdr *)
6514 (mode_pages->data + mode_pages->hdr.block_desc_len);
6517 if (IPR_GET_MODE_PAGE_CODE(mode_hdr) == page_code) {
6518 if (mode_hdr->page_length >= (len - sizeof(struct ipr_mode_page_hdr)))
6522 page_length = (sizeof(struct ipr_mode_page_hdr) +
6523 mode_hdr->page_length);
6524 length -= page_length;
6525 mode_hdr = (struct ipr_mode_page_hdr *)
6526 ((unsigned long)mode_hdr + page_length);
6533 * ipr_check_term_power - Check for term power errors
6534 * @ioa_cfg: ioa config struct
6535 * @mode_pages: IOAFP mode pages buffer
6537 * Check the IOAFP's mode page 28 for term power errors
6542 static void ipr_check_term_power(struct ipr_ioa_cfg *ioa_cfg,
6543 struct ipr_mode_pages *mode_pages)
6547 struct ipr_dev_bus_entry *bus;
6548 struct ipr_mode_page28 *mode_page;
6550 mode_page = ipr_get_mode_page(mode_pages, 0x28,
6551 sizeof(struct ipr_mode_page28));
6553 entry_length = mode_page->entry_length;
6555 bus = mode_page->bus;
6557 for (i = 0; i < mode_page->num_entries; i++) {
6558 if (bus->flags & IPR_SCSI_ATTR_NO_TERM_PWR) {
6559 dev_err(&ioa_cfg->pdev->dev,
6560 "Term power is absent on scsi bus %d\n",
6564 bus = (struct ipr_dev_bus_entry *)((char *)bus + entry_length);
6569 * ipr_scsi_bus_speed_limit - Limit the SCSI speed based on SES table
6570 * @ioa_cfg: ioa config struct
6572 * Looks through the config table checking for SES devices. If
6573 * the SES device is in the SES table indicating a maximum SCSI
6574 * bus speed, the speed is limited for the bus.
6579 static void ipr_scsi_bus_speed_limit(struct ipr_ioa_cfg *ioa_cfg)
6584 for (i = 0; i < IPR_MAX_NUM_BUSES; i++) {
6585 max_xfer_rate = ipr_get_max_scsi_speed(ioa_cfg, i,
6586 ioa_cfg->bus_attr[i].bus_width);
6588 if (max_xfer_rate < ioa_cfg->bus_attr[i].max_xfer_rate)
6589 ioa_cfg->bus_attr[i].max_xfer_rate = max_xfer_rate;
6594 * ipr_modify_ioafp_mode_page_28 - Modify IOAFP Mode Page 28
6595 * @ioa_cfg: ioa config struct
6596 * @mode_pages: mode page 28 buffer
6598 * Updates mode page 28 based on driver configuration
6603 static void ipr_modify_ioafp_mode_page_28(struct ipr_ioa_cfg *ioa_cfg,
6604 struct ipr_mode_pages *mode_pages)
6606 int i, entry_length;
6607 struct ipr_dev_bus_entry *bus;
6608 struct ipr_bus_attributes *bus_attr;
6609 struct ipr_mode_page28 *mode_page;
6611 mode_page = ipr_get_mode_page(mode_pages, 0x28,
6612 sizeof(struct ipr_mode_page28));
6614 entry_length = mode_page->entry_length;
6616 /* Loop for each device bus entry */
6617 for (i = 0, bus = mode_page->bus;
6618 i < mode_page->num_entries;
6619 i++, bus = (struct ipr_dev_bus_entry *)((u8 *)bus + entry_length)) {
6620 if (bus->res_addr.bus > IPR_MAX_NUM_BUSES) {
6621 dev_err(&ioa_cfg->pdev->dev,
6622 "Invalid resource address reported: 0x%08X\n",
6623 IPR_GET_PHYS_LOC(bus->res_addr));
6627 bus_attr = &ioa_cfg->bus_attr[i];
6628 bus->extended_reset_delay = IPR_EXTENDED_RESET_DELAY;
6629 bus->bus_width = bus_attr->bus_width;
6630 bus->max_xfer_rate = cpu_to_be32(bus_attr->max_xfer_rate);
6631 bus->flags &= ~IPR_SCSI_ATTR_QAS_MASK;
6632 if (bus_attr->qas_enabled)
6633 bus->flags |= IPR_SCSI_ATTR_ENABLE_QAS;
6635 bus->flags |= IPR_SCSI_ATTR_DISABLE_QAS;
6640 * ipr_build_mode_select - Build a mode select command
6641 * @ipr_cmd: ipr command struct
6642 * @res_handle: resource handle to send command to
6643 * @parm: Byte 2 of Mode Sense command
6644 * @dma_addr: DMA buffer address
6645 * @xfer_len: data transfer length
6650 static void ipr_build_mode_select(struct ipr_cmnd *ipr_cmd,
6651 __be32 res_handle, u8 parm,
6652 dma_addr_t dma_addr, u8 xfer_len)
6654 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
6656 ioarcb->res_handle = res_handle;
6657 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_SCSICDB;
6658 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ;
6659 ioarcb->cmd_pkt.cdb[0] = MODE_SELECT;
6660 ioarcb->cmd_pkt.cdb[1] = parm;
6661 ioarcb->cmd_pkt.cdb[4] = xfer_len;
6663 ipr_init_ioadl(ipr_cmd, dma_addr, xfer_len, IPR_IOADL_FLAGS_WRITE_LAST);
6667 * ipr_ioafp_mode_select_page28 - Issue Mode Select Page 28 to IOA
6668 * @ipr_cmd: ipr command struct
6670 * This function sets up the SCSI bus attributes and sends
6671 * a Mode Select for Page 28 to activate them.
6676 static int ipr_ioafp_mode_select_page28(struct ipr_cmnd *ipr_cmd)
6678 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6679 struct ipr_mode_pages *mode_pages = &ioa_cfg->vpd_cbs->mode_pages;
6683 ipr_scsi_bus_speed_limit(ioa_cfg);
6684 ipr_check_term_power(ioa_cfg, mode_pages);
6685 ipr_modify_ioafp_mode_page_28(ioa_cfg, mode_pages);
6686 length = mode_pages->hdr.length + 1;
6687 mode_pages->hdr.length = 0;
6689 ipr_build_mode_select(ipr_cmd, cpu_to_be32(IPR_IOA_RES_HANDLE), 0x11,
6690 ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, mode_pages),
6693 ipr_cmd->job_step = ipr_set_supported_devs;
6694 ipr_cmd->u.res = list_entry(ioa_cfg->used_res_q.next,
6695 struct ipr_resource_entry, queue);
6696 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT);
6699 return IPR_RC_JOB_RETURN;
6703 * ipr_build_mode_sense - Builds a mode sense command
6704 * @ipr_cmd: ipr command struct
6705 * @res: resource entry struct
6706 * @parm: Byte 2 of mode sense command
6707 * @dma_addr: DMA address of mode sense buffer
6708 * @xfer_len: Size of DMA buffer
6713 static void ipr_build_mode_sense(struct ipr_cmnd *ipr_cmd,
6715 u8 parm, dma_addr_t dma_addr, u8 xfer_len)
6717 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
6719 ioarcb->res_handle = res_handle;
6720 ioarcb->cmd_pkt.cdb[0] = MODE_SENSE;
6721 ioarcb->cmd_pkt.cdb[2] = parm;
6722 ioarcb->cmd_pkt.cdb[4] = xfer_len;
6723 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_SCSICDB;
6725 ipr_init_ioadl(ipr_cmd, dma_addr, xfer_len, IPR_IOADL_FLAGS_READ_LAST);
6729 * ipr_reset_cmd_failed - Handle failure of IOA reset command
6730 * @ipr_cmd: ipr command struct
6732 * This function handles the failure of an IOA bringup command.
6737 static int ipr_reset_cmd_failed(struct ipr_cmnd *ipr_cmd)
6739 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6740 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
6742 dev_err(&ioa_cfg->pdev->dev,
6743 "0x%02X failed with IOASC: 0x%08X\n",
6744 ipr_cmd->ioarcb.cmd_pkt.cdb[0], ioasc);
6746 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
6747 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
6748 return IPR_RC_JOB_RETURN;
6752 * ipr_reset_mode_sense_failed - Handle failure of IOAFP mode sense
6753 * @ipr_cmd: ipr command struct
6755 * This function handles the failure of a Mode Sense to the IOAFP.
6756 * Some adapters do not handle all mode pages.
6759 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
6761 static int ipr_reset_mode_sense_failed(struct ipr_cmnd *ipr_cmd)
6763 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6764 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
6766 if (ioasc == IPR_IOASC_IR_INVALID_REQ_TYPE_OR_PKT) {
6767 ipr_cmd->job_step = ipr_set_supported_devs;
6768 ipr_cmd->u.res = list_entry(ioa_cfg->used_res_q.next,
6769 struct ipr_resource_entry, queue);
6770 return IPR_RC_JOB_CONTINUE;
6773 return ipr_reset_cmd_failed(ipr_cmd);
6777 * ipr_ioafp_mode_sense_page28 - Issue Mode Sense Page 28 to IOA
6778 * @ipr_cmd: ipr command struct
6780 * This function send a Page 28 mode sense to the IOA to
6781 * retrieve SCSI bus attributes.
6786 static int ipr_ioafp_mode_sense_page28(struct ipr_cmnd *ipr_cmd)
6788 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6791 ipr_build_mode_sense(ipr_cmd, cpu_to_be32(IPR_IOA_RES_HANDLE),
6792 0x28, ioa_cfg->vpd_cbs_dma +
6793 offsetof(struct ipr_misc_cbs, mode_pages),
6794 sizeof(struct ipr_mode_pages));
6796 ipr_cmd->job_step = ipr_ioafp_mode_select_page28;
6797 ipr_cmd->job_step_failed = ipr_reset_mode_sense_failed;
6799 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT);
6802 return IPR_RC_JOB_RETURN;
6806 * ipr_ioafp_mode_select_page24 - Issue Mode Select to IOA
6807 * @ipr_cmd: ipr command struct
6809 * This function enables dual IOA RAID support if possible.
6814 static int ipr_ioafp_mode_select_page24(struct ipr_cmnd *ipr_cmd)
6816 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6817 struct ipr_mode_pages *mode_pages = &ioa_cfg->vpd_cbs->mode_pages;
6818 struct ipr_mode_page24 *mode_page;
6822 mode_page = ipr_get_mode_page(mode_pages, 0x24,
6823 sizeof(struct ipr_mode_page24));
6826 mode_page->flags |= IPR_ENABLE_DUAL_IOA_AF;
6828 length = mode_pages->hdr.length + 1;
6829 mode_pages->hdr.length = 0;
6831 ipr_build_mode_select(ipr_cmd, cpu_to_be32(IPR_IOA_RES_HANDLE), 0x11,
6832 ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, mode_pages),
6835 ipr_cmd->job_step = ipr_ioafp_mode_sense_page28;
6836 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT);
6839 return IPR_RC_JOB_RETURN;
6843 * ipr_reset_mode_sense_page24_failed - Handle failure of IOAFP mode sense
6844 * @ipr_cmd: ipr command struct
6846 * This function handles the failure of a Mode Sense to the IOAFP.
6847 * Some adapters do not handle all mode pages.
6850 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
6852 static int ipr_reset_mode_sense_page24_failed(struct ipr_cmnd *ipr_cmd)
6854 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
6856 if (ioasc == IPR_IOASC_IR_INVALID_REQ_TYPE_OR_PKT) {
6857 ipr_cmd->job_step = ipr_ioafp_mode_sense_page28;
6858 return IPR_RC_JOB_CONTINUE;
6861 return ipr_reset_cmd_failed(ipr_cmd);
6865 * ipr_ioafp_mode_sense_page24 - Issue Page 24 Mode Sense to IOA
6866 * @ipr_cmd: ipr command struct
6868 * This function send a mode sense to the IOA to retrieve
6869 * the IOA Advanced Function Control mode page.
6874 static int ipr_ioafp_mode_sense_page24(struct ipr_cmnd *ipr_cmd)
6876 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6879 ipr_build_mode_sense(ipr_cmd, cpu_to_be32(IPR_IOA_RES_HANDLE),
6880 0x24, ioa_cfg->vpd_cbs_dma +
6881 offsetof(struct ipr_misc_cbs, mode_pages),
6882 sizeof(struct ipr_mode_pages));
6884 ipr_cmd->job_step = ipr_ioafp_mode_select_page24;
6885 ipr_cmd->job_step_failed = ipr_reset_mode_sense_page24_failed;
6887 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT);
6890 return IPR_RC_JOB_RETURN;
6894 * ipr_init_res_table - Initialize the resource table
6895 * @ipr_cmd: ipr command struct
6897 * This function looks through the existing resource table, comparing
6898 * it with the config table. This function will take care of old/new
6899 * devices and schedule adding/removing them from the mid-layer
6903 * IPR_RC_JOB_CONTINUE
6905 static int ipr_init_res_table(struct ipr_cmnd *ipr_cmd)
6907 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6908 struct ipr_resource_entry *res, *temp;
6909 struct ipr_config_table_entry_wrapper cfgtew;
6910 int entries, found, flag, i;
6915 flag = ioa_cfg->u.cfg_table64->hdr64.flags;
6917 flag = ioa_cfg->u.cfg_table->hdr.flags;
6919 if (flag & IPR_UCODE_DOWNLOAD_REQ)
6920 dev_err(&ioa_cfg->pdev->dev, "Microcode download required\n");
6922 list_for_each_entry_safe(res, temp, &ioa_cfg->used_res_q, queue)
6923 list_move_tail(&res->queue, &old_res);
6926 entries = be16_to_cpu(ioa_cfg->u.cfg_table64->hdr64.num_entries);
6928 entries = ioa_cfg->u.cfg_table->hdr.num_entries;
6930 for (i = 0; i < entries; i++) {
6932 cfgtew.u.cfgte64 = &ioa_cfg->u.cfg_table64->dev[i];
6934 cfgtew.u.cfgte = &ioa_cfg->u.cfg_table->dev[i];
6937 list_for_each_entry_safe(res, temp, &old_res, queue) {
6938 if (ipr_is_same_device(res, &cfgtew)) {
6939 list_move_tail(&res->queue, &ioa_cfg->used_res_q);
6946 if (list_empty(&ioa_cfg->free_res_q)) {
6947 dev_err(&ioa_cfg->pdev->dev, "Too many devices attached\n");
6952 res = list_entry(ioa_cfg->free_res_q.next,
6953 struct ipr_resource_entry, queue);
6954 list_move_tail(&res->queue, &ioa_cfg->used_res_q);
6955 ipr_init_res_entry(res, &cfgtew);
6957 } else if (res->sdev && (ipr_is_vset_device(res) || ipr_is_scsi_disk(res)))
6958 res->sdev->allow_restart = 1;
6961 ipr_update_res_entry(res, &cfgtew);
6964 list_for_each_entry_safe(res, temp, &old_res, queue) {
6966 res->del_from_ml = 1;
6967 res->res_handle = IPR_INVALID_RES_HANDLE;
6968 list_move_tail(&res->queue, &ioa_cfg->used_res_q);
6972 list_for_each_entry_safe(res, temp, &old_res, queue) {
6973 ipr_clear_res_target(res);
6974 list_move_tail(&res->queue, &ioa_cfg->free_res_q);
6977 if (ioa_cfg->dual_raid && ipr_dual_ioa_raid)
6978 ipr_cmd->job_step = ipr_ioafp_mode_sense_page24;
6980 ipr_cmd->job_step = ipr_ioafp_mode_sense_page28;
6983 return IPR_RC_JOB_CONTINUE;
6987 * ipr_ioafp_query_ioa_cfg - Send a Query IOA Config to the adapter.
6988 * @ipr_cmd: ipr command struct
6990 * This function sends a Query IOA Configuration command
6991 * to the adapter to retrieve the IOA configuration table.
6996 static int ipr_ioafp_query_ioa_cfg(struct ipr_cmnd *ipr_cmd)
6998 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6999 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
7000 struct ipr_inquiry_page3 *ucode_vpd = &ioa_cfg->vpd_cbs->page3_data;
7001 struct ipr_inquiry_cap *cap = &ioa_cfg->vpd_cbs->cap;
7004 if (cap->cap & IPR_CAP_DUAL_IOA_RAID)
7005 ioa_cfg->dual_raid = 1;
7006 dev_info(&ioa_cfg->pdev->dev, "Adapter firmware version: %02X%02X%02X%02X\n",
7007 ucode_vpd->major_release, ucode_vpd->card_type,
7008 ucode_vpd->minor_release[0], ucode_vpd->minor_release[1]);
7009 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_IOACMD;
7010 ioarcb->res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE);
7012 ioarcb->cmd_pkt.cdb[0] = IPR_QUERY_IOA_CONFIG;
7013 ioarcb->cmd_pkt.cdb[6] = (ioa_cfg->cfg_table_size >> 16) & 0xff;
7014 ioarcb->cmd_pkt.cdb[7] = (ioa_cfg->cfg_table_size >> 8) & 0xff;
7015 ioarcb->cmd_pkt.cdb[8] = ioa_cfg->cfg_table_size & 0xff;
7017 ipr_init_ioadl(ipr_cmd, ioa_cfg->cfg_table_dma, ioa_cfg->cfg_table_size,
7018 IPR_IOADL_FLAGS_READ_LAST);
7020 ipr_cmd->job_step = ipr_init_res_table;
7022 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT);
7025 return IPR_RC_JOB_RETURN;
7029 * ipr_ioafp_inquiry - Send an Inquiry to the adapter.
7030 * @ipr_cmd: ipr command struct
7032 * This utility function sends an inquiry to the adapter.
7037 static void ipr_ioafp_inquiry(struct ipr_cmnd *ipr_cmd, u8 flags, u8 page,
7038 dma_addr_t dma_addr, u8 xfer_len)
7040 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
7043 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_SCSICDB;
7044 ioarcb->res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE);
7046 ioarcb->cmd_pkt.cdb[0] = INQUIRY;
7047 ioarcb->cmd_pkt.cdb[1] = flags;
7048 ioarcb->cmd_pkt.cdb[2] = page;
7049 ioarcb->cmd_pkt.cdb[4] = xfer_len;
7051 ipr_init_ioadl(ipr_cmd, dma_addr, xfer_len, IPR_IOADL_FLAGS_READ_LAST);
7053 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT);
7058 * ipr_inquiry_page_supported - Is the given inquiry page supported
7059 * @page0: inquiry page 0 buffer
7062 * This function determines if the specified inquiry page is supported.
7065 * 1 if page is supported / 0 if not
7067 static int ipr_inquiry_page_supported(struct ipr_inquiry_page0 *page0, u8 page)
7071 for (i = 0; i < min_t(u8, page0->len, IPR_INQUIRY_PAGE0_ENTRIES); i++)
7072 if (page0->page[i] == page)
7079 * ipr_ioafp_cap_inquiry - Send a Page 0xD0 Inquiry to the adapter.
7080 * @ipr_cmd: ipr command struct
7082 * This function sends a Page 0xD0 inquiry to the adapter
7083 * to retrieve adapter capabilities.
7086 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
7088 static int ipr_ioafp_cap_inquiry(struct ipr_cmnd *ipr_cmd)
7090 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7091 struct ipr_inquiry_page0 *page0 = &ioa_cfg->vpd_cbs->page0_data;
7092 struct ipr_inquiry_cap *cap = &ioa_cfg->vpd_cbs->cap;
7095 ipr_cmd->job_step = ipr_ioafp_query_ioa_cfg;
7096 memset(cap, 0, sizeof(*cap));
7098 if (ipr_inquiry_page_supported(page0, 0xD0)) {
7099 ipr_ioafp_inquiry(ipr_cmd, 1, 0xD0,
7100 ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, cap),
7101 sizeof(struct ipr_inquiry_cap));
7102 return IPR_RC_JOB_RETURN;
7106 return IPR_RC_JOB_CONTINUE;
7110 * ipr_ioafp_page3_inquiry - Send a Page 3 Inquiry to the adapter.
7111 * @ipr_cmd: ipr command struct
7113 * This function sends a Page 3 inquiry to the adapter
7114 * to retrieve software VPD information.
7117 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
7119 static int ipr_ioafp_page3_inquiry(struct ipr_cmnd *ipr_cmd)
7121 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7125 ipr_cmd->job_step = ipr_ioafp_cap_inquiry;
7127 ipr_ioafp_inquiry(ipr_cmd, 1, 3,
7128 ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, page3_data),
7129 sizeof(struct ipr_inquiry_page3));
7132 return IPR_RC_JOB_RETURN;
7136 * ipr_ioafp_page0_inquiry - Send a Page 0 Inquiry to the adapter.
7137 * @ipr_cmd: ipr command struct
7139 * This function sends a Page 0 inquiry to the adapter
7140 * to retrieve supported inquiry pages.
7143 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
7145 static int ipr_ioafp_page0_inquiry(struct ipr_cmnd *ipr_cmd)
7147 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7152 /* Grab the type out of the VPD and store it away */
7153 memcpy(type, ioa_cfg->vpd_cbs->ioa_vpd.std_inq_data.vpids.product_id, 4);
7155 ioa_cfg->type = simple_strtoul((char *)type, NULL, 16);
7157 ipr_cmd->job_step = ipr_ioafp_page3_inquiry;
7159 ipr_ioafp_inquiry(ipr_cmd, 1, 0,
7160 ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, page0_data),
7161 sizeof(struct ipr_inquiry_page0));
7164 return IPR_RC_JOB_RETURN;
7168 * ipr_ioafp_std_inquiry - Send a Standard Inquiry to the adapter.
7169 * @ipr_cmd: ipr command struct
7171 * This function sends a standard inquiry to the adapter.
7176 static int ipr_ioafp_std_inquiry(struct ipr_cmnd *ipr_cmd)
7178 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7181 ipr_cmd->job_step = ipr_ioafp_page0_inquiry;
7183 ipr_ioafp_inquiry(ipr_cmd, 0, 0,
7184 ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, ioa_vpd),
7185 sizeof(struct ipr_ioa_vpd));
7188 return IPR_RC_JOB_RETURN;
7192 * ipr_ioafp_identify_hrrq - Send Identify Host RRQ.
7193 * @ipr_cmd: ipr command struct
7195 * This function send an Identify Host Request Response Queue
7196 * command to establish the HRRQ with the adapter.
7201 static int ipr_ioafp_identify_hrrq(struct ipr_cmnd *ipr_cmd)
7203 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7204 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
7207 dev_info(&ioa_cfg->pdev->dev, "Starting IOA initialization sequence.\n");
7209 ioarcb->cmd_pkt.cdb[0] = IPR_ID_HOST_RR_Q;
7210 ioarcb->res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE);
7212 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_IOACMD;
7214 ioarcb->cmd_pkt.cdb[1] = 0x1;
7215 ioarcb->cmd_pkt.cdb[2] =
7216 ((u64) ioa_cfg->host_rrq_dma >> 24) & 0xff;
7217 ioarcb->cmd_pkt.cdb[3] =
7218 ((u64) ioa_cfg->host_rrq_dma >> 16) & 0xff;
7219 ioarcb->cmd_pkt.cdb[4] =
7220 ((u64) ioa_cfg->host_rrq_dma >> 8) & 0xff;
7221 ioarcb->cmd_pkt.cdb[5] =
7222 ((u64) ioa_cfg->host_rrq_dma) & 0xff;
7223 ioarcb->cmd_pkt.cdb[7] =
7224 ((sizeof(u32) * IPR_NUM_CMD_BLKS) >> 8) & 0xff;
7225 ioarcb->cmd_pkt.cdb[8] =
7226 (sizeof(u32) * IPR_NUM_CMD_BLKS) & 0xff;
7228 if (ioa_cfg->sis64) {
7229 ioarcb->cmd_pkt.cdb[10] =
7230 ((u64) ioa_cfg->host_rrq_dma >> 56) & 0xff;
7231 ioarcb->cmd_pkt.cdb[11] =
7232 ((u64) ioa_cfg->host_rrq_dma >> 48) & 0xff;
7233 ioarcb->cmd_pkt.cdb[12] =
7234 ((u64) ioa_cfg->host_rrq_dma >> 40) & 0xff;
7235 ioarcb->cmd_pkt.cdb[13] =
7236 ((u64) ioa_cfg->host_rrq_dma >> 32) & 0xff;
7239 ipr_cmd->job_step = ipr_ioafp_std_inquiry;
7241 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT);
7244 return IPR_RC_JOB_RETURN;
7248 * ipr_reset_timer_done - Adapter reset timer function
7249 * @ipr_cmd: ipr command struct
7251 * Description: This function is used in adapter reset processing
7252 * for timing events. If the reset_cmd pointer in the IOA
7253 * config struct is not this adapter's we are doing nested
7254 * resets and fail_all_ops will take care of freeing the
7260 static void ipr_reset_timer_done(struct ipr_cmnd *ipr_cmd)
7262 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7263 unsigned long lock_flags = 0;
7265 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
7267 if (ioa_cfg->reset_cmd == ipr_cmd) {
7268 list_del(&ipr_cmd->queue);
7269 ipr_cmd->done(ipr_cmd);
7272 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
7276 * ipr_reset_start_timer - Start a timer for adapter reset job
7277 * @ipr_cmd: ipr command struct
7278 * @timeout: timeout value
7280 * Description: This function is used in adapter reset processing
7281 * for timing events. If the reset_cmd pointer in the IOA
7282 * config struct is not this adapter's we are doing nested
7283 * resets and fail_all_ops will take care of freeing the
7289 static void ipr_reset_start_timer(struct ipr_cmnd *ipr_cmd,
7290 unsigned long timeout)
7292 list_add_tail(&ipr_cmd->queue, &ipr_cmd->ioa_cfg->pending_q);
7293 ipr_cmd->done = ipr_reset_ioa_job;
7295 ipr_cmd->timer.data = (unsigned long) ipr_cmd;
7296 ipr_cmd->timer.expires = jiffies + timeout;
7297 ipr_cmd->timer.function = (void (*)(unsigned long))ipr_reset_timer_done;
7298 add_timer(&ipr_cmd->timer);
7302 * ipr_init_ioa_mem - Initialize ioa_cfg control block
7303 * @ioa_cfg: ioa cfg struct
7308 static void ipr_init_ioa_mem(struct ipr_ioa_cfg *ioa_cfg)
7310 memset(ioa_cfg->host_rrq, 0, sizeof(u32) * IPR_NUM_CMD_BLKS);
7312 /* Initialize Host RRQ pointers */
7313 ioa_cfg->hrrq_start = ioa_cfg->host_rrq;
7314 ioa_cfg->hrrq_end = &ioa_cfg->host_rrq[IPR_NUM_CMD_BLKS - 1];
7315 ioa_cfg->hrrq_curr = ioa_cfg->hrrq_start;
7316 ioa_cfg->toggle_bit = 1;
7318 /* Zero out config table */
7319 memset(ioa_cfg->u.cfg_table, 0, ioa_cfg->cfg_table_size);
7323 * ipr_reset_next_stage - Process IPL stage change based on feedback register.
7324 * @ipr_cmd: ipr command struct
7327 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
7329 static int ipr_reset_next_stage(struct ipr_cmnd *ipr_cmd)
7331 unsigned long stage, stage_time;
7333 volatile u32 int_reg;
7334 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7337 feedback = readl(ioa_cfg->regs.init_feedback_reg);
7338 stage = feedback & IPR_IPL_INIT_STAGE_MASK;
7339 stage_time = feedback & IPR_IPL_INIT_STAGE_TIME_MASK;
7341 ipr_dbg("IPL stage = 0x%lx, IPL stage time = %ld\n", stage, stage_time);
7343 /* sanity check the stage_time value */
7344 if (stage_time == 0)
7345 stage_time = IPR_IPL_INIT_DEFAULT_STAGE_TIME;
7346 else if (stage_time < IPR_IPL_INIT_MIN_STAGE_TIME)
7347 stage_time = IPR_IPL_INIT_MIN_STAGE_TIME;
7348 else if (stage_time > IPR_LONG_OPERATIONAL_TIMEOUT)
7349 stage_time = IPR_LONG_OPERATIONAL_TIMEOUT;
7351 if (stage == IPR_IPL_INIT_STAGE_UNKNOWN) {
7352 writel(IPR_PCII_IPL_STAGE_CHANGE, ioa_cfg->regs.set_interrupt_mask_reg);
7353 int_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg);
7354 stage_time = ioa_cfg->transop_timeout;
7355 ipr_cmd->job_step = ipr_ioafp_identify_hrrq;
7356 } else if (stage == IPR_IPL_INIT_STAGE_TRANSOP) {
7357 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg32);
7358 if (int_reg & IPR_PCII_IOA_TRANS_TO_OPER) {
7359 ipr_cmd->job_step = ipr_ioafp_identify_hrrq;
7360 maskval = IPR_PCII_IPL_STAGE_CHANGE;
7361 maskval = (maskval << 32) | IPR_PCII_IOA_TRANS_TO_OPER;
7362 writeq(maskval, ioa_cfg->regs.set_interrupt_mask_reg);
7363 int_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg);
7364 return IPR_RC_JOB_CONTINUE;
7368 ipr_cmd->timer.data = (unsigned long) ipr_cmd;
7369 ipr_cmd->timer.expires = jiffies + stage_time * HZ;
7370 ipr_cmd->timer.function = (void (*)(unsigned long))ipr_oper_timeout;
7371 ipr_cmd->done = ipr_reset_ioa_job;
7372 add_timer(&ipr_cmd->timer);
7373 list_add_tail(&ipr_cmd->queue, &ioa_cfg->pending_q);
7375 return IPR_RC_JOB_RETURN;
7379 * ipr_reset_enable_ioa - Enable the IOA following a reset.
7380 * @ipr_cmd: ipr command struct
7382 * This function reinitializes some control blocks and
7383 * enables destructive diagnostics on the adapter.
7388 static int ipr_reset_enable_ioa(struct ipr_cmnd *ipr_cmd)
7390 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7391 volatile u32 int_reg;
7392 volatile u64 maskval;
7395 ipr_cmd->job_step = ipr_ioafp_identify_hrrq;
7396 ipr_init_ioa_mem(ioa_cfg);
7398 ioa_cfg->allow_interrupts = 1;
7399 if (ioa_cfg->sis64) {
7400 /* Set the adapter to the correct endian mode. */
7401 writel(IPR_ENDIAN_SWAP_KEY, ioa_cfg->regs.endian_swap_reg);
7402 int_reg = readl(ioa_cfg->regs.endian_swap_reg);
7405 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg32);
7407 if (int_reg & IPR_PCII_IOA_TRANS_TO_OPER) {
7408 writel((IPR_PCII_ERROR_INTERRUPTS | IPR_PCII_HRRQ_UPDATED),
7409 ioa_cfg->regs.clr_interrupt_mask_reg32);
7410 int_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg);
7411 return IPR_RC_JOB_CONTINUE;
7414 /* Enable destructive diagnostics on IOA */
7415 writel(ioa_cfg->doorbell, ioa_cfg->regs.set_uproc_interrupt_reg32);
7417 if (ioa_cfg->sis64) {
7418 maskval = IPR_PCII_IPL_STAGE_CHANGE;
7419 maskval = (maskval << 32) | IPR_PCII_OPER_INTERRUPTS;
7420 writeq(maskval, ioa_cfg->regs.clr_interrupt_mask_reg);
7422 writel(IPR_PCII_OPER_INTERRUPTS, ioa_cfg->regs.clr_interrupt_mask_reg32);
7424 int_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg);
7426 dev_info(&ioa_cfg->pdev->dev, "Initializing IOA.\n");
7428 if (ioa_cfg->sis64) {
7429 ipr_cmd->job_step = ipr_reset_next_stage;
7430 return IPR_RC_JOB_CONTINUE;
7433 ipr_cmd->timer.data = (unsigned long) ipr_cmd;
7434 ipr_cmd->timer.expires = jiffies + (ioa_cfg->transop_timeout * HZ);
7435 ipr_cmd->timer.function = (void (*)(unsigned long))ipr_oper_timeout;
7436 ipr_cmd->done = ipr_reset_ioa_job;
7437 add_timer(&ipr_cmd->timer);
7438 list_add_tail(&ipr_cmd->queue, &ioa_cfg->pending_q);
7441 return IPR_RC_JOB_RETURN;
7445 * ipr_reset_wait_for_dump - Wait for a dump to timeout.
7446 * @ipr_cmd: ipr command struct
7448 * This function is invoked when an adapter dump has run out
7449 * of processing time.
7452 * IPR_RC_JOB_CONTINUE
7454 static int ipr_reset_wait_for_dump(struct ipr_cmnd *ipr_cmd)
7456 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7458 if (ioa_cfg->sdt_state == GET_DUMP)
7459 ioa_cfg->sdt_state = WAIT_FOR_DUMP;
7460 else if (ioa_cfg->sdt_state == READ_DUMP)
7461 ioa_cfg->sdt_state = ABORT_DUMP;
7463 ioa_cfg->dump_timeout = 1;
7464 ipr_cmd->job_step = ipr_reset_alert;
7466 return IPR_RC_JOB_CONTINUE;
7470 * ipr_unit_check_no_data - Log a unit check/no data error log
7471 * @ioa_cfg: ioa config struct
7473 * Logs an error indicating the adapter unit checked, but for some
7474 * reason, we were unable to fetch the unit check buffer.
7479 static void ipr_unit_check_no_data(struct ipr_ioa_cfg *ioa_cfg)
7481 ioa_cfg->errors_logged++;
7482 dev_err(&ioa_cfg->pdev->dev, "IOA unit check with no data\n");
7486 * ipr_get_unit_check_buffer - Get the unit check buffer from the IOA
7487 * @ioa_cfg: ioa config struct
7489 * Fetches the unit check buffer from the adapter by clocking the data
7490 * through the mailbox register.
7495 static void ipr_get_unit_check_buffer(struct ipr_ioa_cfg *ioa_cfg)
7497 unsigned long mailbox;
7498 struct ipr_hostrcb *hostrcb;
7499 struct ipr_uc_sdt sdt;
7503 mailbox = readl(ioa_cfg->ioa_mailbox);
7505 if (!ioa_cfg->sis64 && !ipr_sdt_is_fmt2(mailbox)) {
7506 ipr_unit_check_no_data(ioa_cfg);
7510 memset(&sdt, 0, sizeof(struct ipr_uc_sdt));
7511 rc = ipr_get_ldump_data_section(ioa_cfg, mailbox, (__be32 *) &sdt,
7512 (sizeof(struct ipr_uc_sdt)) / sizeof(__be32));
7514 if (rc || !(sdt.entry[0].flags & IPR_SDT_VALID_ENTRY) ||
7515 ((be32_to_cpu(sdt.hdr.state) != IPR_FMT3_SDT_READY_TO_USE) &&
7516 (be32_to_cpu(sdt.hdr.state) != IPR_FMT2_SDT_READY_TO_USE))) {
7517 ipr_unit_check_no_data(ioa_cfg);
7521 /* Find length of the first sdt entry (UC buffer) */
7522 if (be32_to_cpu(sdt.hdr.state) == IPR_FMT3_SDT_READY_TO_USE)
7523 length = be32_to_cpu(sdt.entry[0].end_token);
7525 length = (be32_to_cpu(sdt.entry[0].end_token) -
7526 be32_to_cpu(sdt.entry[0].start_token)) &
7527 IPR_FMT2_MBX_ADDR_MASK;
7529 hostrcb = list_entry(ioa_cfg->hostrcb_free_q.next,
7530 struct ipr_hostrcb, queue);
7531 list_del(&hostrcb->queue);
7532 memset(&hostrcb->hcam, 0, sizeof(hostrcb->hcam));
7534 rc = ipr_get_ldump_data_section(ioa_cfg,
7535 be32_to_cpu(sdt.entry[0].start_token),
7536 (__be32 *)&hostrcb->hcam,
7537 min(length, (int)sizeof(hostrcb->hcam)) / sizeof(__be32));
7540 ipr_handle_log_data(ioa_cfg, hostrcb);
7541 ioasc = be32_to_cpu(hostrcb->hcam.u.error.fd_ioasc);
7542 if (ioasc == IPR_IOASC_NR_IOA_RESET_REQUIRED &&
7543 ioa_cfg->sdt_state == GET_DUMP)
7544 ioa_cfg->sdt_state = WAIT_FOR_DUMP;
7546 ipr_unit_check_no_data(ioa_cfg);
7548 list_add_tail(&hostrcb->queue, &ioa_cfg->hostrcb_free_q);
7552 * ipr_reset_get_unit_check_job - Call to get the unit check buffer.
7553 * @ipr_cmd: ipr command struct
7555 * Description: This function will call to get the unit check buffer.
7560 static int ipr_reset_get_unit_check_job(struct ipr_cmnd *ipr_cmd)
7562 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7565 ioa_cfg->ioa_unit_checked = 0;
7566 ipr_get_unit_check_buffer(ioa_cfg);
7567 ipr_cmd->job_step = ipr_reset_alert;
7568 ipr_reset_start_timer(ipr_cmd, 0);
7571 return IPR_RC_JOB_RETURN;
7575 * ipr_reset_restore_cfg_space - Restore PCI config space.
7576 * @ipr_cmd: ipr command struct
7578 * Description: This function restores the saved PCI config space of
7579 * the adapter, fails all outstanding ops back to the callers, and
7580 * fetches the dump/unit check if applicable to this reset.
7583 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
7585 static int ipr_reset_restore_cfg_space(struct ipr_cmnd *ipr_cmd)
7587 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7591 ioa_cfg->pdev->state_saved = true;
7592 pci_restore_state(ioa_cfg->pdev);
7594 if (ipr_set_pcix_cmd_reg(ioa_cfg)) {
7595 ipr_cmd->s.ioasa.hdr.ioasc = cpu_to_be32(IPR_IOASC_PCI_ACCESS_ERROR);
7596 return IPR_RC_JOB_CONTINUE;
7599 ipr_fail_all_ops(ioa_cfg);
7601 if (ioa_cfg->sis64) {
7602 /* Set the adapter to the correct endian mode. */
7603 writel(IPR_ENDIAN_SWAP_KEY, ioa_cfg->regs.endian_swap_reg);
7604 int_reg = readl(ioa_cfg->regs.endian_swap_reg);
7607 if (ioa_cfg->ioa_unit_checked) {
7608 if (ioa_cfg->sis64) {
7609 ipr_cmd->job_step = ipr_reset_get_unit_check_job;
7610 ipr_reset_start_timer(ipr_cmd, IPR_DUMP_DELAY_TIMEOUT);
7611 return IPR_RC_JOB_RETURN;
7613 ioa_cfg->ioa_unit_checked = 0;
7614 ipr_get_unit_check_buffer(ioa_cfg);
7615 ipr_cmd->job_step = ipr_reset_alert;
7616 ipr_reset_start_timer(ipr_cmd, 0);
7617 return IPR_RC_JOB_RETURN;
7621 if (ioa_cfg->in_ioa_bringdown) {
7622 ipr_cmd->job_step = ipr_ioa_bringdown_done;
7624 ipr_cmd->job_step = ipr_reset_enable_ioa;
7626 if (GET_DUMP == ioa_cfg->sdt_state) {
7627 ioa_cfg->sdt_state = READ_DUMP;
7628 ioa_cfg->dump_timeout = 0;
7630 ipr_reset_start_timer(ipr_cmd, IPR_SIS64_DUMP_TIMEOUT);
7632 ipr_reset_start_timer(ipr_cmd, IPR_SIS32_DUMP_TIMEOUT);
7633 ipr_cmd->job_step = ipr_reset_wait_for_dump;
7634 schedule_work(&ioa_cfg->work_q);
7635 return IPR_RC_JOB_RETURN;
7640 return IPR_RC_JOB_CONTINUE;
7644 * ipr_reset_bist_done - BIST has completed on the adapter.
7645 * @ipr_cmd: ipr command struct
7647 * Description: Unblock config space and resume the reset process.
7650 * IPR_RC_JOB_CONTINUE
7652 static int ipr_reset_bist_done(struct ipr_cmnd *ipr_cmd)
7654 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7657 if (ioa_cfg->cfg_locked)
7658 pci_cfg_access_unlock(ioa_cfg->pdev);
7659 ioa_cfg->cfg_locked = 0;
7660 ipr_cmd->job_step = ipr_reset_restore_cfg_space;
7662 return IPR_RC_JOB_CONTINUE;
7666 * ipr_reset_start_bist - Run BIST on the adapter.
7667 * @ipr_cmd: ipr command struct
7669 * Description: This function runs BIST on the adapter, then delays 2 seconds.
7672 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
7674 static int ipr_reset_start_bist(struct ipr_cmnd *ipr_cmd)
7676 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7677 int rc = PCIBIOS_SUCCESSFUL;
7680 if (ioa_cfg->ipr_chip->bist_method == IPR_MMIO)
7681 writel(IPR_UPROCI_SIS64_START_BIST,
7682 ioa_cfg->regs.set_uproc_interrupt_reg32);
7684 rc = pci_write_config_byte(ioa_cfg->pdev, PCI_BIST, PCI_BIST_START);
7686 if (rc == PCIBIOS_SUCCESSFUL) {
7687 ipr_cmd->job_step = ipr_reset_bist_done;
7688 ipr_reset_start_timer(ipr_cmd, IPR_WAIT_FOR_BIST_TIMEOUT);
7689 rc = IPR_RC_JOB_RETURN;
7691 if (ioa_cfg->cfg_locked)
7692 pci_cfg_access_unlock(ipr_cmd->ioa_cfg->pdev);
7693 ioa_cfg->cfg_locked = 0;
7694 ipr_cmd->s.ioasa.hdr.ioasc = cpu_to_be32(IPR_IOASC_PCI_ACCESS_ERROR);
7695 rc = IPR_RC_JOB_CONTINUE;
7703 * ipr_reset_slot_reset_done - Clear PCI reset to the adapter
7704 * @ipr_cmd: ipr command struct
7706 * Description: This clears PCI reset to the adapter and delays two seconds.
7711 static int ipr_reset_slot_reset_done(struct ipr_cmnd *ipr_cmd)
7714 pci_set_pcie_reset_state(ipr_cmd->ioa_cfg->pdev, pcie_deassert_reset);
7715 ipr_cmd->job_step = ipr_reset_bist_done;
7716 ipr_reset_start_timer(ipr_cmd, IPR_WAIT_FOR_BIST_TIMEOUT);
7718 return IPR_RC_JOB_RETURN;
7722 * ipr_reset_slot_reset - Reset the PCI slot of the adapter.
7723 * @ipr_cmd: ipr command struct
7725 * Description: This asserts PCI reset to the adapter.
7730 static int ipr_reset_slot_reset(struct ipr_cmnd *ipr_cmd)
7732 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7733 struct pci_dev *pdev = ioa_cfg->pdev;
7736 pci_set_pcie_reset_state(pdev, pcie_warm_reset);
7737 ipr_cmd->job_step = ipr_reset_slot_reset_done;
7738 ipr_reset_start_timer(ipr_cmd, IPR_PCI_RESET_TIMEOUT);
7740 return IPR_RC_JOB_RETURN;
7744 * ipr_reset_block_config_access_wait - Wait for permission to block config access
7745 * @ipr_cmd: ipr command struct
7747 * Description: This attempts to block config access to the IOA.
7750 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
7752 static int ipr_reset_block_config_access_wait(struct ipr_cmnd *ipr_cmd)
7754 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7755 int rc = IPR_RC_JOB_CONTINUE;
7757 if (pci_cfg_access_trylock(ioa_cfg->pdev)) {
7758 ioa_cfg->cfg_locked = 1;
7759 ipr_cmd->job_step = ioa_cfg->reset;
7761 if (ipr_cmd->u.time_left) {
7762 rc = IPR_RC_JOB_RETURN;
7763 ipr_cmd->u.time_left -= IPR_CHECK_FOR_RESET_TIMEOUT;
7764 ipr_reset_start_timer(ipr_cmd,
7765 IPR_CHECK_FOR_RESET_TIMEOUT);
7767 ipr_cmd->job_step = ioa_cfg->reset;
7768 dev_err(&ioa_cfg->pdev->dev,
7769 "Timed out waiting to lock config access. Resetting anyway.\n");
7777 * ipr_reset_block_config_access - Block config access to the IOA
7778 * @ipr_cmd: ipr command struct
7780 * Description: This attempts to block config access to the IOA
7783 * IPR_RC_JOB_CONTINUE
7785 static int ipr_reset_block_config_access(struct ipr_cmnd *ipr_cmd)
7787 ipr_cmd->ioa_cfg->cfg_locked = 0;
7788 ipr_cmd->job_step = ipr_reset_block_config_access_wait;
7789 ipr_cmd->u.time_left = IPR_WAIT_FOR_RESET_TIMEOUT;
7790 return IPR_RC_JOB_CONTINUE;
7794 * ipr_reset_allowed - Query whether or not IOA can be reset
7795 * @ioa_cfg: ioa config struct
7798 * 0 if reset not allowed / non-zero if reset is allowed
7800 static int ipr_reset_allowed(struct ipr_ioa_cfg *ioa_cfg)
7802 volatile u32 temp_reg;
7804 temp_reg = readl(ioa_cfg->regs.sense_interrupt_reg);
7805 return ((temp_reg & IPR_PCII_CRITICAL_OPERATION) == 0);
7809 * ipr_reset_wait_to_start_bist - Wait for permission to reset IOA.
7810 * @ipr_cmd: ipr command struct
7812 * Description: This function waits for adapter permission to run BIST,
7813 * then runs BIST. If the adapter does not give permission after a
7814 * reasonable time, we will reset the adapter anyway. The impact of
7815 * resetting the adapter without warning the adapter is the risk of
7816 * losing the persistent error log on the adapter. If the adapter is
7817 * reset while it is writing to the flash on the adapter, the flash
7818 * segment will have bad ECC and be zeroed.
7821 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
7823 static int ipr_reset_wait_to_start_bist(struct ipr_cmnd *ipr_cmd)
7825 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7826 int rc = IPR_RC_JOB_RETURN;
7828 if (!ipr_reset_allowed(ioa_cfg) && ipr_cmd->u.time_left) {
7829 ipr_cmd->u.time_left -= IPR_CHECK_FOR_RESET_TIMEOUT;
7830 ipr_reset_start_timer(ipr_cmd, IPR_CHECK_FOR_RESET_TIMEOUT);
7832 ipr_cmd->job_step = ipr_reset_block_config_access;
7833 rc = IPR_RC_JOB_CONTINUE;
7840 * ipr_reset_alert - Alert the adapter of a pending reset
7841 * @ipr_cmd: ipr command struct
7843 * Description: This function alerts the adapter that it will be reset.
7844 * If memory space is not currently enabled, proceed directly
7845 * to running BIST on the adapter. The timer must always be started
7846 * so we guarantee we do not run BIST from ipr_isr.
7851 static int ipr_reset_alert(struct ipr_cmnd *ipr_cmd)
7853 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7858 rc = pci_read_config_word(ioa_cfg->pdev, PCI_COMMAND, &cmd_reg);
7860 if ((rc == PCIBIOS_SUCCESSFUL) && (cmd_reg & PCI_COMMAND_MEMORY)) {
7861 ipr_mask_and_clear_interrupts(ioa_cfg, ~0);
7862 writel(IPR_UPROCI_RESET_ALERT, ioa_cfg->regs.set_uproc_interrupt_reg32);
7863 ipr_cmd->job_step = ipr_reset_wait_to_start_bist;
7865 ipr_cmd->job_step = ipr_reset_block_config_access;
7868 ipr_cmd->u.time_left = IPR_WAIT_FOR_RESET_TIMEOUT;
7869 ipr_reset_start_timer(ipr_cmd, IPR_CHECK_FOR_RESET_TIMEOUT);
7872 return IPR_RC_JOB_RETURN;
7876 * ipr_reset_ucode_download_done - Microcode download completion
7877 * @ipr_cmd: ipr command struct
7879 * Description: This function unmaps the microcode download buffer.
7882 * IPR_RC_JOB_CONTINUE
7884 static int ipr_reset_ucode_download_done(struct ipr_cmnd *ipr_cmd)
7886 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7887 struct ipr_sglist *sglist = ioa_cfg->ucode_sglist;
7889 pci_unmap_sg(ioa_cfg->pdev, sglist->scatterlist,
7890 sglist->num_sg, DMA_TO_DEVICE);
7892 ipr_cmd->job_step = ipr_reset_alert;
7893 return IPR_RC_JOB_CONTINUE;
7897 * ipr_reset_ucode_download - Download microcode to the adapter
7898 * @ipr_cmd: ipr command struct
7900 * Description: This function checks to see if it there is microcode
7901 * to download to the adapter. If there is, a download is performed.
7904 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
7906 static int ipr_reset_ucode_download(struct ipr_cmnd *ipr_cmd)
7908 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7909 struct ipr_sglist *sglist = ioa_cfg->ucode_sglist;
7912 ipr_cmd->job_step = ipr_reset_alert;
7915 return IPR_RC_JOB_CONTINUE;
7917 ipr_cmd->ioarcb.res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE);
7918 ipr_cmd->ioarcb.cmd_pkt.request_type = IPR_RQTYPE_SCSICDB;
7919 ipr_cmd->ioarcb.cmd_pkt.cdb[0] = WRITE_BUFFER;
7920 ipr_cmd->ioarcb.cmd_pkt.cdb[1] = IPR_WR_BUF_DOWNLOAD_AND_SAVE;
7921 ipr_cmd->ioarcb.cmd_pkt.cdb[6] = (sglist->buffer_len & 0xff0000) >> 16;
7922 ipr_cmd->ioarcb.cmd_pkt.cdb[7] = (sglist->buffer_len & 0x00ff00) >> 8;
7923 ipr_cmd->ioarcb.cmd_pkt.cdb[8] = sglist->buffer_len & 0x0000ff;
7926 ipr_build_ucode_ioadl64(ipr_cmd, sglist);
7928 ipr_build_ucode_ioadl(ipr_cmd, sglist);
7929 ipr_cmd->job_step = ipr_reset_ucode_download_done;
7931 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout,
7932 IPR_WRITE_BUFFER_TIMEOUT);
7935 return IPR_RC_JOB_RETURN;
7939 * ipr_reset_shutdown_ioa - Shutdown the adapter
7940 * @ipr_cmd: ipr command struct
7942 * Description: This function issues an adapter shutdown of the
7943 * specified type to the specified adapter as part of the
7944 * adapter reset job.
7947 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
7949 static int ipr_reset_shutdown_ioa(struct ipr_cmnd *ipr_cmd)
7951 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7952 enum ipr_shutdown_type shutdown_type = ipr_cmd->u.shutdown_type;
7953 unsigned long timeout;
7954 int rc = IPR_RC_JOB_CONTINUE;
7957 if (shutdown_type != IPR_SHUTDOWN_NONE && !ioa_cfg->ioa_is_dead) {
7958 ipr_cmd->ioarcb.res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE);
7959 ipr_cmd->ioarcb.cmd_pkt.request_type = IPR_RQTYPE_IOACMD;
7960 ipr_cmd->ioarcb.cmd_pkt.cdb[0] = IPR_IOA_SHUTDOWN;
7961 ipr_cmd->ioarcb.cmd_pkt.cdb[1] = shutdown_type;
7963 if (shutdown_type == IPR_SHUTDOWN_NORMAL)
7964 timeout = IPR_SHUTDOWN_TIMEOUT;
7965 else if (shutdown_type == IPR_SHUTDOWN_PREPARE_FOR_NORMAL)
7966 timeout = IPR_INTERNAL_TIMEOUT;
7967 else if (ioa_cfg->dual_raid && ipr_dual_ioa_raid)
7968 timeout = IPR_DUAL_IOA_ABBR_SHUTDOWN_TO;
7970 timeout = IPR_ABBREV_SHUTDOWN_TIMEOUT;
7972 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, timeout);
7974 rc = IPR_RC_JOB_RETURN;
7975 ipr_cmd->job_step = ipr_reset_ucode_download;
7977 ipr_cmd->job_step = ipr_reset_alert;
7984 * ipr_reset_ioa_job - Adapter reset job
7985 * @ipr_cmd: ipr command struct
7987 * Description: This function is the job router for the adapter reset job.
7992 static void ipr_reset_ioa_job(struct ipr_cmnd *ipr_cmd)
7995 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7998 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
8000 if (ioa_cfg->reset_cmd != ipr_cmd) {
8002 * We are doing nested adapter resets and this is
8003 * not the current reset job.
8005 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
8009 if (IPR_IOASC_SENSE_KEY(ioasc)) {
8010 rc = ipr_cmd->job_step_failed(ipr_cmd);
8011 if (rc == IPR_RC_JOB_RETURN)
8015 ipr_reinit_ipr_cmnd(ipr_cmd);
8016 ipr_cmd->job_step_failed = ipr_reset_cmd_failed;
8017 rc = ipr_cmd->job_step(ipr_cmd);
8018 } while(rc == IPR_RC_JOB_CONTINUE);
8022 * _ipr_initiate_ioa_reset - Initiate an adapter reset
8023 * @ioa_cfg: ioa config struct
8024 * @job_step: first job step of reset job
8025 * @shutdown_type: shutdown type
8027 * Description: This function will initiate the reset of the given adapter
8028 * starting at the selected job step.
8029 * If the caller needs to wait on the completion of the reset,
8030 * the caller must sleep on the reset_wait_q.
8035 static void _ipr_initiate_ioa_reset(struct ipr_ioa_cfg *ioa_cfg,
8036 int (*job_step) (struct ipr_cmnd *),
8037 enum ipr_shutdown_type shutdown_type)
8039 struct ipr_cmnd *ipr_cmd;
8041 ioa_cfg->in_reset_reload = 1;
8042 ioa_cfg->allow_cmds = 0;
8043 scsi_block_requests(ioa_cfg->host);
8045 ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg);
8046 ioa_cfg->reset_cmd = ipr_cmd;
8047 ipr_cmd->job_step = job_step;
8048 ipr_cmd->u.shutdown_type = shutdown_type;
8050 ipr_reset_ioa_job(ipr_cmd);
8054 * ipr_initiate_ioa_reset - Initiate an adapter reset
8055 * @ioa_cfg: ioa config struct
8056 * @shutdown_type: shutdown type
8058 * Description: This function will initiate the reset of the given adapter.
8059 * If the caller needs to wait on the completion of the reset,
8060 * the caller must sleep on the reset_wait_q.
8065 static void ipr_initiate_ioa_reset(struct ipr_ioa_cfg *ioa_cfg,
8066 enum ipr_shutdown_type shutdown_type)
8068 if (ioa_cfg->ioa_is_dead)
8071 if (ioa_cfg->in_reset_reload) {
8072 if (ioa_cfg->sdt_state == GET_DUMP)
8073 ioa_cfg->sdt_state = WAIT_FOR_DUMP;
8074 else if (ioa_cfg->sdt_state == READ_DUMP)
8075 ioa_cfg->sdt_state = ABORT_DUMP;
8078 if (ioa_cfg->reset_retries++ >= IPR_NUM_RESET_RELOAD_RETRIES) {
8079 dev_err(&ioa_cfg->pdev->dev,
8080 "IOA taken offline - error recovery failed\n");
8082 ioa_cfg->reset_retries = 0;
8083 ioa_cfg->ioa_is_dead = 1;
8085 if (ioa_cfg->in_ioa_bringdown) {
8086 ioa_cfg->reset_cmd = NULL;
8087 ioa_cfg->in_reset_reload = 0;
8088 ipr_fail_all_ops(ioa_cfg);
8089 wake_up_all(&ioa_cfg->reset_wait_q);
8091 spin_unlock_irq(ioa_cfg->host->host_lock);
8092 scsi_unblock_requests(ioa_cfg->host);
8093 spin_lock_irq(ioa_cfg->host->host_lock);
8096 ioa_cfg->in_ioa_bringdown = 1;
8097 shutdown_type = IPR_SHUTDOWN_NONE;
8101 _ipr_initiate_ioa_reset(ioa_cfg, ipr_reset_shutdown_ioa,
8106 * ipr_reset_freeze - Hold off all I/O activity
8107 * @ipr_cmd: ipr command struct
8109 * Description: If the PCI slot is frozen, hold off all I/O
8110 * activity; then, as soon as the slot is available again,
8111 * initiate an adapter reset.
8113 static int ipr_reset_freeze(struct ipr_cmnd *ipr_cmd)
8115 /* Disallow new interrupts, avoid loop */
8116 ipr_cmd->ioa_cfg->allow_interrupts = 0;
8117 list_add_tail(&ipr_cmd->queue, &ipr_cmd->ioa_cfg->pending_q);
8118 ipr_cmd->done = ipr_reset_ioa_job;
8119 return IPR_RC_JOB_RETURN;
8123 * ipr_pci_frozen - Called when slot has experienced a PCI bus error.
8124 * @pdev: PCI device struct
8126 * Description: This routine is called to tell us that the PCI bus
8127 * is down. Can't do anything here, except put the device driver
8128 * into a holding pattern, waiting for the PCI bus to come back.
8130 static void ipr_pci_frozen(struct pci_dev *pdev)
8132 unsigned long flags = 0;
8133 struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev);
8135 spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
8136 _ipr_initiate_ioa_reset(ioa_cfg, ipr_reset_freeze, IPR_SHUTDOWN_NONE);
8137 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
8141 * ipr_pci_slot_reset - Called when PCI slot has been reset.
8142 * @pdev: PCI device struct
8144 * Description: This routine is called by the pci error recovery
8145 * code after the PCI slot has been reset, just before we
8146 * should resume normal operations.
8148 static pci_ers_result_t ipr_pci_slot_reset(struct pci_dev *pdev)
8150 unsigned long flags = 0;
8151 struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev);
8153 spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
8154 if (ioa_cfg->needs_warm_reset)
8155 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
8157 _ipr_initiate_ioa_reset(ioa_cfg, ipr_reset_restore_cfg_space,
8159 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
8160 return PCI_ERS_RESULT_RECOVERED;
8164 * ipr_pci_perm_failure - Called when PCI slot is dead for good.
8165 * @pdev: PCI device struct
8167 * Description: This routine is called when the PCI bus has
8168 * permanently failed.
8170 static void ipr_pci_perm_failure(struct pci_dev *pdev)
8172 unsigned long flags = 0;
8173 struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev);
8175 spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
8176 if (ioa_cfg->sdt_state == WAIT_FOR_DUMP)
8177 ioa_cfg->sdt_state = ABORT_DUMP;
8178 ioa_cfg->reset_retries = IPR_NUM_RESET_RELOAD_RETRIES;
8179 ioa_cfg->in_ioa_bringdown = 1;
8180 ioa_cfg->allow_cmds = 0;
8181 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
8182 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
8186 * ipr_pci_error_detected - Called when a PCI error is detected.
8187 * @pdev: PCI device struct
8188 * @state: PCI channel state
8190 * Description: Called when a PCI error is detected.
8193 * PCI_ERS_RESULT_NEED_RESET or PCI_ERS_RESULT_DISCONNECT
8195 static pci_ers_result_t ipr_pci_error_detected(struct pci_dev *pdev,
8196 pci_channel_state_t state)
8199 case pci_channel_io_frozen:
8200 ipr_pci_frozen(pdev);
8201 return PCI_ERS_RESULT_NEED_RESET;
8202 case pci_channel_io_perm_failure:
8203 ipr_pci_perm_failure(pdev);
8204 return PCI_ERS_RESULT_DISCONNECT;
8209 return PCI_ERS_RESULT_NEED_RESET;
8213 * ipr_probe_ioa_part2 - Initializes IOAs found in ipr_probe_ioa(..)
8214 * @ioa_cfg: ioa cfg struct
8216 * Description: This is the second phase of adapter intialization
8217 * This function takes care of initilizing the adapter to the point
8218 * where it can accept new commands.
8221 * 0 on success / -EIO on failure
8223 static int __devinit ipr_probe_ioa_part2(struct ipr_ioa_cfg *ioa_cfg)
8226 unsigned long host_lock_flags = 0;
8229 spin_lock_irqsave(ioa_cfg->host->host_lock, host_lock_flags);
8230 dev_dbg(&ioa_cfg->pdev->dev, "ioa_cfg adx: 0x%p\n", ioa_cfg);
8231 if (ioa_cfg->needs_hard_reset) {
8232 ioa_cfg->needs_hard_reset = 0;
8233 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
8235 _ipr_initiate_ioa_reset(ioa_cfg, ipr_reset_enable_ioa,
8238 spin_unlock_irqrestore(ioa_cfg->host->host_lock, host_lock_flags);
8239 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
8240 spin_lock_irqsave(ioa_cfg->host->host_lock, host_lock_flags);
8242 if (ioa_cfg->ioa_is_dead) {
8244 } else if (ipr_invalid_adapter(ioa_cfg)) {
8248 dev_err(&ioa_cfg->pdev->dev,
8249 "Adapter not supported in this hardware configuration.\n");
8252 spin_unlock_irqrestore(ioa_cfg->host->host_lock, host_lock_flags);
8259 * ipr_free_cmd_blks - Frees command blocks allocated for an adapter
8260 * @ioa_cfg: ioa config struct
8265 static void ipr_free_cmd_blks(struct ipr_ioa_cfg *ioa_cfg)
8269 for (i = 0; i < IPR_NUM_CMD_BLKS; i++) {
8270 if (ioa_cfg->ipr_cmnd_list[i])
8271 pci_pool_free(ioa_cfg->ipr_cmd_pool,
8272 ioa_cfg->ipr_cmnd_list[i],
8273 ioa_cfg->ipr_cmnd_list_dma[i]);
8275 ioa_cfg->ipr_cmnd_list[i] = NULL;
8278 if (ioa_cfg->ipr_cmd_pool)
8279 pci_pool_destroy (ioa_cfg->ipr_cmd_pool);
8281 ioa_cfg->ipr_cmd_pool = NULL;
8285 * ipr_free_mem - Frees memory allocated for an adapter
8286 * @ioa_cfg: ioa cfg struct
8291 static void ipr_free_mem(struct ipr_ioa_cfg *ioa_cfg)
8295 kfree(ioa_cfg->res_entries);
8296 pci_free_consistent(ioa_cfg->pdev, sizeof(struct ipr_misc_cbs),
8297 ioa_cfg->vpd_cbs, ioa_cfg->vpd_cbs_dma);
8298 ipr_free_cmd_blks(ioa_cfg);
8299 pci_free_consistent(ioa_cfg->pdev, sizeof(u32) * IPR_NUM_CMD_BLKS,
8300 ioa_cfg->host_rrq, ioa_cfg->host_rrq_dma);
8301 pci_free_consistent(ioa_cfg->pdev, ioa_cfg->cfg_table_size,
8302 ioa_cfg->u.cfg_table,
8303 ioa_cfg->cfg_table_dma);
8305 for (i = 0; i < IPR_NUM_HCAMS; i++) {
8306 pci_free_consistent(ioa_cfg->pdev,
8307 sizeof(struct ipr_hostrcb),
8308 ioa_cfg->hostrcb[i],
8309 ioa_cfg->hostrcb_dma[i]);
8312 ipr_free_dump(ioa_cfg);
8313 kfree(ioa_cfg->trace);
8317 * ipr_free_all_resources - Free all allocated resources for an adapter.
8318 * @ipr_cmd: ipr command struct
8320 * This function frees all allocated resources for the
8321 * specified adapter.
8326 static void ipr_free_all_resources(struct ipr_ioa_cfg *ioa_cfg)
8328 struct pci_dev *pdev = ioa_cfg->pdev;
8331 free_irq(pdev->irq, ioa_cfg);
8332 pci_disable_msi(pdev);
8333 iounmap(ioa_cfg->hdw_dma_regs);
8334 pci_release_regions(pdev);
8335 ipr_free_mem(ioa_cfg);
8336 scsi_host_put(ioa_cfg->host);
8337 pci_disable_device(pdev);
8342 * ipr_alloc_cmd_blks - Allocate command blocks for an adapter
8343 * @ioa_cfg: ioa config struct
8346 * 0 on success / -ENOMEM on allocation failure
8348 static int __devinit ipr_alloc_cmd_blks(struct ipr_ioa_cfg *ioa_cfg)
8350 struct ipr_cmnd *ipr_cmd;
8351 struct ipr_ioarcb *ioarcb;
8352 dma_addr_t dma_addr;
8355 ioa_cfg->ipr_cmd_pool = pci_pool_create (IPR_NAME, ioa_cfg->pdev,
8356 sizeof(struct ipr_cmnd), 16, 0);
8358 if (!ioa_cfg->ipr_cmd_pool)
8361 for (i = 0; i < IPR_NUM_CMD_BLKS; i++) {
8362 ipr_cmd = pci_pool_alloc (ioa_cfg->ipr_cmd_pool, GFP_KERNEL, &dma_addr);
8365 ipr_free_cmd_blks(ioa_cfg);
8369 memset(ipr_cmd, 0, sizeof(*ipr_cmd));
8370 ioa_cfg->ipr_cmnd_list[i] = ipr_cmd;
8371 ioa_cfg->ipr_cmnd_list_dma[i] = dma_addr;
8373 ioarcb = &ipr_cmd->ioarcb;
8374 ipr_cmd->dma_addr = dma_addr;
8376 ioarcb->a.ioarcb_host_pci_addr64 = cpu_to_be64(dma_addr);
8378 ioarcb->a.ioarcb_host_pci_addr = cpu_to_be32(dma_addr);
8380 ioarcb->host_response_handle = cpu_to_be32(i << 2);
8381 if (ioa_cfg->sis64) {
8382 ioarcb->u.sis64_addr_data.data_ioadl_addr =
8383 cpu_to_be64(dma_addr + offsetof(struct ipr_cmnd, i.ioadl64));
8384 ioarcb->u.sis64_addr_data.ioasa_host_pci_addr =
8385 cpu_to_be64(dma_addr + offsetof(struct ipr_cmnd, s.ioasa64));
8387 ioarcb->write_ioadl_addr =
8388 cpu_to_be32(dma_addr + offsetof(struct ipr_cmnd, i.ioadl));
8389 ioarcb->read_ioadl_addr = ioarcb->write_ioadl_addr;
8390 ioarcb->ioasa_host_pci_addr =
8391 cpu_to_be32(dma_addr + offsetof(struct ipr_cmnd, s.ioasa));
8393 ioarcb->ioasa_len = cpu_to_be16(sizeof(struct ipr_ioasa));
8394 ipr_cmd->cmd_index = i;
8395 ipr_cmd->ioa_cfg = ioa_cfg;
8396 ipr_cmd->sense_buffer_dma = dma_addr +
8397 offsetof(struct ipr_cmnd, sense_buffer);
8399 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
8406 * ipr_alloc_mem - Allocate memory for an adapter
8407 * @ioa_cfg: ioa config struct
8410 * 0 on success / non-zero for error
8412 static int __devinit ipr_alloc_mem(struct ipr_ioa_cfg *ioa_cfg)
8414 struct pci_dev *pdev = ioa_cfg->pdev;
8415 int i, rc = -ENOMEM;
8418 ioa_cfg->res_entries = kzalloc(sizeof(struct ipr_resource_entry) *
8419 ioa_cfg->max_devs_supported, GFP_KERNEL);
8421 if (!ioa_cfg->res_entries)
8424 if (ioa_cfg->sis64) {
8425 ioa_cfg->target_ids = kzalloc(sizeof(unsigned long) *
8426 BITS_TO_LONGS(ioa_cfg->max_devs_supported), GFP_KERNEL);
8427 ioa_cfg->array_ids = kzalloc(sizeof(unsigned long) *
8428 BITS_TO_LONGS(ioa_cfg->max_devs_supported), GFP_KERNEL);
8429 ioa_cfg->vset_ids = kzalloc(sizeof(unsigned long) *
8430 BITS_TO_LONGS(ioa_cfg->max_devs_supported), GFP_KERNEL);
8433 for (i = 0; i < ioa_cfg->max_devs_supported; i++) {
8434 list_add_tail(&ioa_cfg->res_entries[i].queue, &ioa_cfg->free_res_q);
8435 ioa_cfg->res_entries[i].ioa_cfg = ioa_cfg;
8438 ioa_cfg->vpd_cbs = pci_alloc_consistent(ioa_cfg->pdev,
8439 sizeof(struct ipr_misc_cbs),
8440 &ioa_cfg->vpd_cbs_dma);
8442 if (!ioa_cfg->vpd_cbs)
8443 goto out_free_res_entries;
8445 if (ipr_alloc_cmd_blks(ioa_cfg))
8446 goto out_free_vpd_cbs;
8448 ioa_cfg->host_rrq = pci_alloc_consistent(ioa_cfg->pdev,
8449 sizeof(u32) * IPR_NUM_CMD_BLKS,
8450 &ioa_cfg->host_rrq_dma);
8452 if (!ioa_cfg->host_rrq)
8453 goto out_ipr_free_cmd_blocks;
8455 ioa_cfg->u.cfg_table = pci_alloc_consistent(ioa_cfg->pdev,
8456 ioa_cfg->cfg_table_size,
8457 &ioa_cfg->cfg_table_dma);
8459 if (!ioa_cfg->u.cfg_table)
8460 goto out_free_host_rrq;
8462 for (i = 0; i < IPR_NUM_HCAMS; i++) {
8463 ioa_cfg->hostrcb[i] = pci_alloc_consistent(ioa_cfg->pdev,
8464 sizeof(struct ipr_hostrcb),
8465 &ioa_cfg->hostrcb_dma[i]);
8467 if (!ioa_cfg->hostrcb[i])
8468 goto out_free_hostrcb_dma;
8470 ioa_cfg->hostrcb[i]->hostrcb_dma =
8471 ioa_cfg->hostrcb_dma[i] + offsetof(struct ipr_hostrcb, hcam);
8472 ioa_cfg->hostrcb[i]->ioa_cfg = ioa_cfg;
8473 list_add_tail(&ioa_cfg->hostrcb[i]->queue, &ioa_cfg->hostrcb_free_q);
8476 ioa_cfg->trace = kzalloc(sizeof(struct ipr_trace_entry) *
8477 IPR_NUM_TRACE_ENTRIES, GFP_KERNEL);
8479 if (!ioa_cfg->trace)
8480 goto out_free_hostrcb_dma;
8487 out_free_hostrcb_dma:
8489 pci_free_consistent(pdev, sizeof(struct ipr_hostrcb),
8490 ioa_cfg->hostrcb[i],
8491 ioa_cfg->hostrcb_dma[i]);
8493 pci_free_consistent(pdev, ioa_cfg->cfg_table_size,
8494 ioa_cfg->u.cfg_table,
8495 ioa_cfg->cfg_table_dma);
8497 pci_free_consistent(pdev, sizeof(u32) * IPR_NUM_CMD_BLKS,
8498 ioa_cfg->host_rrq, ioa_cfg->host_rrq_dma);
8499 out_ipr_free_cmd_blocks:
8500 ipr_free_cmd_blks(ioa_cfg);
8502 pci_free_consistent(pdev, sizeof(struct ipr_misc_cbs),
8503 ioa_cfg->vpd_cbs, ioa_cfg->vpd_cbs_dma);
8504 out_free_res_entries:
8505 kfree(ioa_cfg->res_entries);
8510 * ipr_initialize_bus_attr - Initialize SCSI bus attributes to default values
8511 * @ioa_cfg: ioa config struct
8516 static void __devinit ipr_initialize_bus_attr(struct ipr_ioa_cfg *ioa_cfg)
8520 for (i = 0; i < IPR_MAX_NUM_BUSES; i++) {
8521 ioa_cfg->bus_attr[i].bus = i;
8522 ioa_cfg->bus_attr[i].qas_enabled = 0;
8523 ioa_cfg->bus_attr[i].bus_width = IPR_DEFAULT_BUS_WIDTH;
8524 if (ipr_max_speed < ARRAY_SIZE(ipr_max_bus_speeds))
8525 ioa_cfg->bus_attr[i].max_xfer_rate = ipr_max_bus_speeds[ipr_max_speed];
8527 ioa_cfg->bus_attr[i].max_xfer_rate = IPR_U160_SCSI_RATE;
8532 * ipr_init_ioa_cfg - Initialize IOA config struct
8533 * @ioa_cfg: ioa config struct
8534 * @host: scsi host struct
8535 * @pdev: PCI dev struct
8540 static void __devinit ipr_init_ioa_cfg(struct ipr_ioa_cfg *ioa_cfg,
8541 struct Scsi_Host *host, struct pci_dev *pdev)
8543 const struct ipr_interrupt_offsets *p;
8544 struct ipr_interrupts *t;
8547 ioa_cfg->host = host;
8548 ioa_cfg->pdev = pdev;
8549 ioa_cfg->log_level = ipr_log_level;
8550 ioa_cfg->doorbell = IPR_DOORBELL;
8551 sprintf(ioa_cfg->eye_catcher, IPR_EYECATCHER);
8552 sprintf(ioa_cfg->trace_start, IPR_TRACE_START_LABEL);
8553 sprintf(ioa_cfg->ipr_free_label, IPR_FREEQ_LABEL);
8554 sprintf(ioa_cfg->ipr_pending_label, IPR_PENDQ_LABEL);
8555 sprintf(ioa_cfg->cfg_table_start, IPR_CFG_TBL_START);
8556 sprintf(ioa_cfg->resource_table_label, IPR_RES_TABLE_LABEL);
8557 sprintf(ioa_cfg->ipr_hcam_label, IPR_HCAM_LABEL);
8558 sprintf(ioa_cfg->ipr_cmd_label, IPR_CMD_LABEL);
8560 INIT_LIST_HEAD(&ioa_cfg->free_q);
8561 INIT_LIST_HEAD(&ioa_cfg->pending_q);
8562 INIT_LIST_HEAD(&ioa_cfg->hostrcb_free_q);
8563 INIT_LIST_HEAD(&ioa_cfg->hostrcb_pending_q);
8564 INIT_LIST_HEAD(&ioa_cfg->free_res_q);
8565 INIT_LIST_HEAD(&ioa_cfg->used_res_q);
8566 INIT_WORK(&ioa_cfg->work_q, ipr_worker_thread);
8567 init_waitqueue_head(&ioa_cfg->reset_wait_q);
8568 init_waitqueue_head(&ioa_cfg->msi_wait_q);
8569 ioa_cfg->sdt_state = INACTIVE;
8571 ipr_initialize_bus_attr(ioa_cfg);
8572 ioa_cfg->max_devs_supported = ipr_max_devs;
8574 if (ioa_cfg->sis64) {
8575 host->max_id = IPR_MAX_SIS64_TARGETS_PER_BUS;
8576 host->max_lun = IPR_MAX_SIS64_LUNS_PER_TARGET;
8577 if (ipr_max_devs > IPR_MAX_SIS64_DEVS)
8578 ioa_cfg->max_devs_supported = IPR_MAX_SIS64_DEVS;
8580 host->max_id = IPR_MAX_NUM_TARGETS_PER_BUS;
8581 host->max_lun = IPR_MAX_NUM_LUNS_PER_TARGET;
8582 if (ipr_max_devs > IPR_MAX_PHYSICAL_DEVS)
8583 ioa_cfg->max_devs_supported = IPR_MAX_PHYSICAL_DEVS;
8585 host->max_channel = IPR_MAX_BUS_TO_SCAN;
8586 host->unique_id = host->host_no;
8587 host->max_cmd_len = IPR_MAX_CDB_LEN;
8588 pci_set_drvdata(pdev, ioa_cfg);
8590 p = &ioa_cfg->chip_cfg->regs;
8592 base = ioa_cfg->hdw_dma_regs;
8594 t->set_interrupt_mask_reg = base + p->set_interrupt_mask_reg;
8595 t->clr_interrupt_mask_reg = base + p->clr_interrupt_mask_reg;
8596 t->clr_interrupt_mask_reg32 = base + p->clr_interrupt_mask_reg32;
8597 t->sense_interrupt_mask_reg = base + p->sense_interrupt_mask_reg;
8598 t->sense_interrupt_mask_reg32 = base + p->sense_interrupt_mask_reg32;
8599 t->clr_interrupt_reg = base + p->clr_interrupt_reg;
8600 t->clr_interrupt_reg32 = base + p->clr_interrupt_reg32;
8601 t->sense_interrupt_reg = base + p->sense_interrupt_reg;
8602 t->sense_interrupt_reg32 = base + p->sense_interrupt_reg32;
8603 t->ioarrin_reg = base + p->ioarrin_reg;
8604 t->sense_uproc_interrupt_reg = base + p->sense_uproc_interrupt_reg;
8605 t->sense_uproc_interrupt_reg32 = base + p->sense_uproc_interrupt_reg32;
8606 t->set_uproc_interrupt_reg = base + p->set_uproc_interrupt_reg;
8607 t->set_uproc_interrupt_reg32 = base + p->set_uproc_interrupt_reg32;
8608 t->clr_uproc_interrupt_reg = base + p->clr_uproc_interrupt_reg;
8609 t->clr_uproc_interrupt_reg32 = base + p->clr_uproc_interrupt_reg32;
8611 if (ioa_cfg->sis64) {
8612 t->init_feedback_reg = base + p->init_feedback_reg;
8613 t->dump_addr_reg = base + p->dump_addr_reg;
8614 t->dump_data_reg = base + p->dump_data_reg;
8615 t->endian_swap_reg = base + p->endian_swap_reg;
8620 * ipr_get_chip_info - Find adapter chip information
8621 * @dev_id: PCI device id struct
8624 * ptr to chip information on success / NULL on failure
8626 static const struct ipr_chip_t * __devinit
8627 ipr_get_chip_info(const struct pci_device_id *dev_id)
8631 for (i = 0; i < ARRAY_SIZE(ipr_chip); i++)
8632 if (ipr_chip[i].vendor == dev_id->vendor &&
8633 ipr_chip[i].device == dev_id->device)
8634 return &ipr_chip[i];
8639 * ipr_test_intr - Handle the interrupt generated in ipr_test_msi().
8640 * @pdev: PCI device struct
8642 * Description: Simply set the msi_received flag to 1 indicating that
8643 * Message Signaled Interrupts are supported.
8646 * 0 on success / non-zero on failure
8648 static irqreturn_t __devinit ipr_test_intr(int irq, void *devp)
8650 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)devp;
8651 unsigned long lock_flags = 0;
8652 irqreturn_t rc = IRQ_HANDLED;
8654 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
8656 ioa_cfg->msi_received = 1;
8657 wake_up(&ioa_cfg->msi_wait_q);
8659 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
8664 * ipr_test_msi - Test for Message Signaled Interrupt (MSI) support.
8665 * @pdev: PCI device struct
8667 * Description: The return value from pci_enable_msi() can not always be
8668 * trusted. This routine sets up and initiates a test interrupt to determine
8669 * if the interrupt is received via the ipr_test_intr() service routine.
8670 * If the tests fails, the driver will fall back to LSI.
8673 * 0 on success / non-zero on failure
8675 static int __devinit ipr_test_msi(struct ipr_ioa_cfg *ioa_cfg,
8676 struct pci_dev *pdev)
8679 volatile u32 int_reg;
8680 unsigned long lock_flags = 0;
8684 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
8685 init_waitqueue_head(&ioa_cfg->msi_wait_q);
8686 ioa_cfg->msi_received = 0;
8687 ipr_mask_and_clear_interrupts(ioa_cfg, ~IPR_PCII_IOA_TRANS_TO_OPER);
8688 writel(IPR_PCII_IO_DEBUG_ACKNOWLEDGE, ioa_cfg->regs.clr_interrupt_mask_reg32);
8689 int_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg);
8690 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
8692 rc = request_irq(pdev->irq, ipr_test_intr, 0, IPR_NAME, ioa_cfg);
8694 dev_err(&pdev->dev, "Can not assign irq %d\n", pdev->irq);
8696 } else if (ipr_debug)
8697 dev_info(&pdev->dev, "IRQ assigned: %d\n", pdev->irq);
8699 writel(IPR_PCII_IO_DEBUG_ACKNOWLEDGE, ioa_cfg->regs.sense_interrupt_reg32);
8700 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg);
8701 wait_event_timeout(ioa_cfg->msi_wait_q, ioa_cfg->msi_received, HZ);
8702 ipr_mask_and_clear_interrupts(ioa_cfg, ~IPR_PCII_IOA_TRANS_TO_OPER);
8704 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
8705 if (!ioa_cfg->msi_received) {
8706 /* MSI test failed */
8707 dev_info(&pdev->dev, "MSI test failed. Falling back to LSI.\n");
8709 } else if (ipr_debug)
8710 dev_info(&pdev->dev, "MSI test succeeded.\n");
8712 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
8714 free_irq(pdev->irq, ioa_cfg);
8722 * ipr_probe_ioa - Allocates memory and does first stage of initialization
8723 * @pdev: PCI device struct
8724 * @dev_id: PCI device id struct
8727 * 0 on success / non-zero on failure
8729 static int __devinit ipr_probe_ioa(struct pci_dev *pdev,
8730 const struct pci_device_id *dev_id)
8732 struct ipr_ioa_cfg *ioa_cfg;
8733 struct Scsi_Host *host;
8734 unsigned long ipr_regs_pci;
8735 void __iomem *ipr_regs;
8736 int rc = PCIBIOS_SUCCESSFUL;
8737 volatile u32 mask, uproc, interrupts;
8741 if ((rc = pci_enable_device(pdev))) {
8742 dev_err(&pdev->dev, "Cannot enable adapter\n");
8746 dev_info(&pdev->dev, "Found IOA with IRQ: %d\n", pdev->irq);
8748 host = scsi_host_alloc(&driver_template, sizeof(*ioa_cfg));
8751 dev_err(&pdev->dev, "call to scsi_host_alloc failed!\n");
8756 ioa_cfg = (struct ipr_ioa_cfg *)host->hostdata;
8757 memset(ioa_cfg, 0, sizeof(struct ipr_ioa_cfg));
8758 ata_host_init(&ioa_cfg->ata_host, &pdev->dev,
8759 sata_port_info.flags, &ipr_sata_ops);
8761 ioa_cfg->ipr_chip = ipr_get_chip_info(dev_id);
8763 if (!ioa_cfg->ipr_chip) {
8764 dev_err(&pdev->dev, "Unknown adapter chipset 0x%04X 0x%04X\n",
8765 dev_id->vendor, dev_id->device);
8766 goto out_scsi_host_put;
8769 /* set SIS 32 or SIS 64 */
8770 ioa_cfg->sis64 = ioa_cfg->ipr_chip->sis_type == IPR_SIS64 ? 1 : 0;
8771 ioa_cfg->chip_cfg = ioa_cfg->ipr_chip->cfg;
8773 if (ipr_transop_timeout)
8774 ioa_cfg->transop_timeout = ipr_transop_timeout;
8775 else if (dev_id->driver_data & IPR_USE_LONG_TRANSOP_TIMEOUT)
8776 ioa_cfg->transop_timeout = IPR_LONG_OPERATIONAL_TIMEOUT;
8778 ioa_cfg->transop_timeout = IPR_OPERATIONAL_TIMEOUT;
8780 ioa_cfg->revid = pdev->revision;
8782 ipr_regs_pci = pci_resource_start(pdev, 0);
8784 rc = pci_request_regions(pdev, IPR_NAME);
8787 "Couldn't register memory range of registers\n");
8788 goto out_scsi_host_put;
8791 ipr_regs = pci_ioremap_bar(pdev, 0);
8795 "Couldn't map memory range of registers\n");
8797 goto out_release_regions;
8800 ioa_cfg->hdw_dma_regs = ipr_regs;
8801 ioa_cfg->hdw_dma_regs_pci = ipr_regs_pci;
8802 ioa_cfg->ioa_mailbox = ioa_cfg->chip_cfg->mailbox + ipr_regs;
8804 ipr_init_ioa_cfg(ioa_cfg, host, pdev);
8806 pci_set_master(pdev);
8808 if (ioa_cfg->sis64) {
8809 rc = pci_set_dma_mask(pdev, DMA_BIT_MASK(64));
8811 dev_dbg(&pdev->dev, "Failed to set 64 bit PCI DMA mask\n");
8812 rc = pci_set_dma_mask(pdev, DMA_BIT_MASK(32));
8816 rc = pci_set_dma_mask(pdev, DMA_BIT_MASK(32));
8819 dev_err(&pdev->dev, "Failed to set PCI DMA mask\n");
8823 rc = pci_write_config_byte(pdev, PCI_CACHE_LINE_SIZE,
8824 ioa_cfg->chip_cfg->cache_line_size);
8826 if (rc != PCIBIOS_SUCCESSFUL) {
8827 dev_err(&pdev->dev, "Write of cache line size failed\n");
8832 /* Enable MSI style interrupts if they are supported. */
8833 if (ioa_cfg->ipr_chip->intr_type == IPR_USE_MSI && !pci_enable_msi(pdev)) {
8834 rc = ipr_test_msi(ioa_cfg, pdev);
8835 if (rc == -EOPNOTSUPP)
8836 pci_disable_msi(pdev);
8838 goto out_msi_disable;
8840 dev_info(&pdev->dev, "MSI enabled with IRQ: %d\n", pdev->irq);
8841 } else if (ipr_debug)
8842 dev_info(&pdev->dev, "Cannot enable MSI.\n");
8844 /* Save away PCI config space for use following IOA reset */
8845 rc = pci_save_state(pdev);
8847 if (rc != PCIBIOS_SUCCESSFUL) {
8848 dev_err(&pdev->dev, "Failed to save PCI config space\n");
8850 goto out_msi_disable;
8853 if ((rc = ipr_save_pcix_cmd_reg(ioa_cfg)))
8854 goto out_msi_disable;
8856 if ((rc = ipr_set_pcix_cmd_reg(ioa_cfg)))
8857 goto out_msi_disable;
8860 ioa_cfg->cfg_table_size = (sizeof(struct ipr_config_table_hdr64)
8861 + ((sizeof(struct ipr_config_table_entry64)
8862 * ioa_cfg->max_devs_supported)));
8864 ioa_cfg->cfg_table_size = (sizeof(struct ipr_config_table_hdr)
8865 + ((sizeof(struct ipr_config_table_entry)
8866 * ioa_cfg->max_devs_supported)));
8868 rc = ipr_alloc_mem(ioa_cfg);
8871 "Couldn't allocate enough memory for device driver!\n");
8872 goto out_msi_disable;
8876 * If HRRQ updated interrupt is not masked, or reset alert is set,
8877 * the card is in an unknown state and needs a hard reset
8879 mask = readl(ioa_cfg->regs.sense_interrupt_mask_reg32);
8880 interrupts = readl(ioa_cfg->regs.sense_interrupt_reg32);
8881 uproc = readl(ioa_cfg->regs.sense_uproc_interrupt_reg32);
8882 if ((mask & IPR_PCII_HRRQ_UPDATED) == 0 || (uproc & IPR_UPROCI_RESET_ALERT))
8883 ioa_cfg->needs_hard_reset = 1;
8884 if ((interrupts & IPR_PCII_ERROR_INTERRUPTS) || reset_devices)
8885 ioa_cfg->needs_hard_reset = 1;
8886 if (interrupts & IPR_PCII_IOA_UNIT_CHECKED)
8887 ioa_cfg->ioa_unit_checked = 1;
8889 ipr_mask_and_clear_interrupts(ioa_cfg, ~IPR_PCII_IOA_TRANS_TO_OPER);
8890 rc = request_irq(pdev->irq, ipr_isr,
8891 ioa_cfg->msi_received ? 0 : IRQF_SHARED,
8895 dev_err(&pdev->dev, "Couldn't register IRQ %d! rc=%d\n",
8900 if ((dev_id->driver_data & IPR_USE_PCI_WARM_RESET) ||
8901 (dev_id->device == PCI_DEVICE_ID_IBM_OBSIDIAN_E && !ioa_cfg->revid)) {
8902 ioa_cfg->needs_warm_reset = 1;
8903 ioa_cfg->reset = ipr_reset_slot_reset;
8905 ioa_cfg->reset = ipr_reset_start_bist;
8907 spin_lock(&ipr_driver_lock);
8908 list_add_tail(&ioa_cfg->queue, &ipr_ioa_head);
8909 spin_unlock(&ipr_driver_lock);
8916 ipr_free_mem(ioa_cfg);
8918 pci_disable_msi(pdev);
8921 out_release_regions:
8922 pci_release_regions(pdev);
8924 scsi_host_put(host);
8926 pci_disable_device(pdev);
8931 * ipr_scan_vsets - Scans for VSET devices
8932 * @ioa_cfg: ioa config struct
8934 * Description: Since the VSET resources do not follow SAM in that we can have
8935 * sparse LUNs with no LUN 0, we have to scan for these ourselves.
8940 static void ipr_scan_vsets(struct ipr_ioa_cfg *ioa_cfg)
8944 for (target = 0; target < IPR_MAX_NUM_TARGETS_PER_BUS; target++)
8945 for (lun = 0; lun < IPR_MAX_NUM_VSET_LUNS_PER_TARGET; lun++ )
8946 scsi_add_device(ioa_cfg->host, IPR_VSET_BUS, target, lun);
8950 * ipr_initiate_ioa_bringdown - Bring down an adapter
8951 * @ioa_cfg: ioa config struct
8952 * @shutdown_type: shutdown type
8954 * Description: This function will initiate bringing down the adapter.
8955 * This consists of issuing an IOA shutdown to the adapter
8956 * to flush the cache, and running BIST.
8957 * If the caller needs to wait on the completion of the reset,
8958 * the caller must sleep on the reset_wait_q.
8963 static void ipr_initiate_ioa_bringdown(struct ipr_ioa_cfg *ioa_cfg,
8964 enum ipr_shutdown_type shutdown_type)
8967 if (ioa_cfg->sdt_state == WAIT_FOR_DUMP)
8968 ioa_cfg->sdt_state = ABORT_DUMP;
8969 ioa_cfg->reset_retries = 0;
8970 ioa_cfg->in_ioa_bringdown = 1;
8971 ipr_initiate_ioa_reset(ioa_cfg, shutdown_type);
8976 * __ipr_remove - Remove a single adapter
8977 * @pdev: pci device struct
8979 * Adapter hot plug remove entry point.
8984 static void __ipr_remove(struct pci_dev *pdev)
8986 unsigned long host_lock_flags = 0;
8987 struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev);
8990 spin_lock_irqsave(ioa_cfg->host->host_lock, host_lock_flags);
8991 while(ioa_cfg->in_reset_reload) {
8992 spin_unlock_irqrestore(ioa_cfg->host->host_lock, host_lock_flags);
8993 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
8994 spin_lock_irqsave(ioa_cfg->host->host_lock, host_lock_flags);
8997 ipr_initiate_ioa_bringdown(ioa_cfg, IPR_SHUTDOWN_NORMAL);
8999 spin_unlock_irqrestore(ioa_cfg->host->host_lock, host_lock_flags);
9000 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
9001 flush_work_sync(&ioa_cfg->work_q);
9002 spin_lock_irqsave(ioa_cfg->host->host_lock, host_lock_flags);
9004 spin_lock(&ipr_driver_lock);
9005 list_del(&ioa_cfg->queue);
9006 spin_unlock(&ipr_driver_lock);
9008 if (ioa_cfg->sdt_state == ABORT_DUMP)
9009 ioa_cfg->sdt_state = WAIT_FOR_DUMP;
9010 spin_unlock_irqrestore(ioa_cfg->host->host_lock, host_lock_flags);
9012 ipr_free_all_resources(ioa_cfg);
9018 * ipr_remove - IOA hot plug remove entry point
9019 * @pdev: pci device struct
9021 * Adapter hot plug remove entry point.
9026 static void __devexit ipr_remove(struct pci_dev *pdev)
9028 struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev);
9032 ipr_remove_trace_file(&ioa_cfg->host->shost_dev.kobj,
9034 ipr_remove_dump_file(&ioa_cfg->host->shost_dev.kobj,
9036 scsi_remove_host(ioa_cfg->host);
9044 * ipr_probe - Adapter hot plug add entry point
9047 * 0 on success / non-zero on failure
9049 static int __devinit ipr_probe(struct pci_dev *pdev,
9050 const struct pci_device_id *dev_id)
9052 struct ipr_ioa_cfg *ioa_cfg;
9055 rc = ipr_probe_ioa(pdev, dev_id);
9060 ioa_cfg = pci_get_drvdata(pdev);
9061 rc = ipr_probe_ioa_part2(ioa_cfg);
9068 rc = scsi_add_host(ioa_cfg->host, &pdev->dev);
9075 rc = ipr_create_trace_file(&ioa_cfg->host->shost_dev.kobj,
9079 scsi_remove_host(ioa_cfg->host);
9084 rc = ipr_create_dump_file(&ioa_cfg->host->shost_dev.kobj,
9088 ipr_remove_trace_file(&ioa_cfg->host->shost_dev.kobj,
9090 scsi_remove_host(ioa_cfg->host);
9095 scsi_scan_host(ioa_cfg->host);
9096 ipr_scan_vsets(ioa_cfg);
9097 scsi_add_device(ioa_cfg->host, IPR_IOA_BUS, IPR_IOA_TARGET, IPR_IOA_LUN);
9098 ioa_cfg->allow_ml_add_del = 1;
9099 ioa_cfg->host->max_channel = IPR_VSET_BUS;
9100 schedule_work(&ioa_cfg->work_q);
9105 * ipr_shutdown - Shutdown handler.
9106 * @pdev: pci device struct
9108 * This function is invoked upon system shutdown/reboot. It will issue
9109 * an adapter shutdown to the adapter to flush the write cache.
9114 static void ipr_shutdown(struct pci_dev *pdev)
9116 struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev);
9117 unsigned long lock_flags = 0;
9119 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
9120 while(ioa_cfg->in_reset_reload) {
9121 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
9122 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
9123 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
9126 ipr_initiate_ioa_bringdown(ioa_cfg, IPR_SHUTDOWN_NORMAL);
9127 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
9128 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
9131 static struct pci_device_id ipr_pci_table[] __devinitdata = {
9132 { PCI_VENDOR_ID_MYLEX, PCI_DEVICE_ID_IBM_GEMSTONE,
9133 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_5702, 0, 0, 0 },
9134 { PCI_VENDOR_ID_MYLEX, PCI_DEVICE_ID_IBM_GEMSTONE,
9135 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_5703, 0, 0, 0 },
9136 { PCI_VENDOR_ID_MYLEX, PCI_DEVICE_ID_IBM_GEMSTONE,
9137 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_573D, 0, 0, 0 },
9138 { PCI_VENDOR_ID_MYLEX, PCI_DEVICE_ID_IBM_GEMSTONE,
9139 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_573E, 0, 0, 0 },
9140 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CITRINE,
9141 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_571B, 0, 0, 0 },
9142 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CITRINE,
9143 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572E, 0, 0, 0 },
9144 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CITRINE,
9145 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_571A, 0, 0, 0 },
9146 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CITRINE,
9147 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_575B, 0, 0,
9148 IPR_USE_LONG_TRANSOP_TIMEOUT },
9149 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_OBSIDIAN,
9150 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572A, 0, 0, 0 },
9151 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_OBSIDIAN,
9152 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572B, 0, 0,
9153 IPR_USE_LONG_TRANSOP_TIMEOUT },
9154 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_OBSIDIAN,
9155 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_575C, 0, 0,
9156 IPR_USE_LONG_TRANSOP_TIMEOUT },
9157 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN,
9158 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572A, 0, 0, 0 },
9159 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN,
9160 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572B, 0, 0,
9161 IPR_USE_LONG_TRANSOP_TIMEOUT},
9162 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN,
9163 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_575C, 0, 0,
9164 IPR_USE_LONG_TRANSOP_TIMEOUT },
9165 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN_E,
9166 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_574E, 0, 0,
9167 IPR_USE_LONG_TRANSOP_TIMEOUT },
9168 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN_E,
9169 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57B3, 0, 0, 0 },
9170 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN_E,
9171 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57CC, 0, 0, 0 },
9172 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN_E,
9173 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57B7, 0, 0,
9174 IPR_USE_LONG_TRANSOP_TIMEOUT | IPR_USE_PCI_WARM_RESET },
9175 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_SNIPE,
9176 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_2780, 0, 0, 0 },
9177 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_SCAMP,
9178 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_571E, 0, 0, 0 },
9179 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_SCAMP,
9180 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_571F, 0, 0,
9181 IPR_USE_LONG_TRANSOP_TIMEOUT },
9182 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_SCAMP,
9183 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572F, 0, 0,
9184 IPR_USE_LONG_TRANSOP_TIMEOUT },
9185 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_FPGA_E2,
9186 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57B5, 0, 0, 0 },
9187 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_FPGA_E2,
9188 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_574D, 0, 0, 0 },
9189 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_FPGA_E2,
9190 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57B2, 0, 0, 0 },
9191 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_FPGA_E2,
9192 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57C3, 0, 0, 0 },
9193 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_FPGA_E2,
9194 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57C4, 0, 0, 0 },
9195 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
9196 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57B4, 0, 0, 0 },
9197 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
9198 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57B1, 0, 0, 0 },
9199 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
9200 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57C6, 0, 0, 0 },
9201 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
9202 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57C8, 0, 0, 0 },
9203 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE,
9204 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57CE, 0, 0, 0 },
9207 MODULE_DEVICE_TABLE(pci, ipr_pci_table);
9209 static struct pci_error_handlers ipr_err_handler = {
9210 .error_detected = ipr_pci_error_detected,
9211 .slot_reset = ipr_pci_slot_reset,
9214 static struct pci_driver ipr_driver = {
9216 .id_table = ipr_pci_table,
9218 .remove = __devexit_p(ipr_remove),
9219 .shutdown = ipr_shutdown,
9220 .err_handler = &ipr_err_handler,
9224 * ipr_halt_done - Shutdown prepare completion
9229 static void ipr_halt_done(struct ipr_cmnd *ipr_cmd)
9231 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
9233 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
9237 * ipr_halt - Issue shutdown prepare to all adapters
9240 * NOTIFY_OK on success / NOTIFY_DONE on failure
9242 static int ipr_halt(struct notifier_block *nb, ulong event, void *buf)
9244 struct ipr_cmnd *ipr_cmd;
9245 struct ipr_ioa_cfg *ioa_cfg;
9246 unsigned long flags = 0;
9248 if (event != SYS_RESTART && event != SYS_HALT && event != SYS_POWER_OFF)
9251 spin_lock(&ipr_driver_lock);
9253 list_for_each_entry(ioa_cfg, &ipr_ioa_head, queue) {
9254 spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
9255 if (!ioa_cfg->allow_cmds) {
9256 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
9260 ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg);
9261 ipr_cmd->ioarcb.res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE);
9262 ipr_cmd->ioarcb.cmd_pkt.request_type = IPR_RQTYPE_IOACMD;
9263 ipr_cmd->ioarcb.cmd_pkt.cdb[0] = IPR_IOA_SHUTDOWN;
9264 ipr_cmd->ioarcb.cmd_pkt.cdb[1] = IPR_SHUTDOWN_PREPARE_FOR_NORMAL;
9266 ipr_do_req(ipr_cmd, ipr_halt_done, ipr_timeout, IPR_DEVICE_RESET_TIMEOUT);
9267 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
9269 spin_unlock(&ipr_driver_lock);
9274 static struct notifier_block ipr_notifier = {
9279 * ipr_init - Module entry point
9282 * 0 on success / negative value on failure
9284 static int __init ipr_init(void)
9286 ipr_info("IBM Power RAID SCSI Device Driver version: %s %s\n",
9287 IPR_DRIVER_VERSION, IPR_DRIVER_DATE);
9289 register_reboot_notifier(&ipr_notifier);
9290 return pci_register_driver(&ipr_driver);
9294 * ipr_exit - Module unload
9296 * Module unload entry point.
9301 static void __exit ipr_exit(void)
9303 unregister_reboot_notifier(&ipr_notifier);
9304 pci_unregister_driver(&ipr_driver);
9307 module_init(ipr_init);
9308 module_exit(ipr_exit);