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_CROC_ASIC_E2, 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)
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 if (be32_to_cpu(image_hdr->header_length) > fw_entry->size ||
3755 (ioa_cfg->vpd_cbs->page3_data.card_type &&
3756 ioa_cfg->vpd_cbs->page3_data.card_type != image_hdr->card_type)) {
3757 dev_err(&ioa_cfg->pdev->dev, "Invalid microcode buffer\n");
3758 release_firmware(fw_entry);
3762 src = (u8 *)image_hdr + be32_to_cpu(image_hdr->header_length);
3763 dnld_size = fw_entry->size - be32_to_cpu(image_hdr->header_length);
3764 sglist = ipr_alloc_ucode_buffer(dnld_size);
3767 dev_err(&ioa_cfg->pdev->dev, "Microcode buffer allocation failed\n");
3768 release_firmware(fw_entry);
3772 result = ipr_copy_ucode_buffer(sglist, src, dnld_size);
3775 dev_err(&ioa_cfg->pdev->dev,
3776 "Microcode buffer copy to DMA buffer failed\n");
3780 result = ipr_update_ioa_ucode(ioa_cfg, sglist);
3785 ipr_free_ucode_buffer(sglist);
3786 release_firmware(fw_entry);
3790 static struct device_attribute ipr_update_fw_attr = {
3792 .name = "update_fw",
3795 .store = ipr_store_update_fw
3799 * ipr_show_fw_type - Show the adapter's firmware type.
3800 * @dev: class device struct
3804 * number of bytes printed to buffer
3806 static ssize_t ipr_show_fw_type(struct device *dev,
3807 struct device_attribute *attr, char *buf)
3809 struct Scsi_Host *shost = class_to_shost(dev);
3810 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
3811 unsigned long lock_flags = 0;
3814 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3815 len = snprintf(buf, PAGE_SIZE, "%d\n", ioa_cfg->sis64);
3816 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3820 static struct device_attribute ipr_ioa_fw_type_attr = {
3825 .show = ipr_show_fw_type
3828 static struct device_attribute *ipr_ioa_attrs[] = {
3829 &ipr_fw_version_attr,
3830 &ipr_log_level_attr,
3831 &ipr_diagnostics_attr,
3832 &ipr_ioa_state_attr,
3833 &ipr_ioa_reset_attr,
3834 &ipr_update_fw_attr,
3835 &ipr_ioa_fw_type_attr,
3839 #ifdef CONFIG_SCSI_IPR_DUMP
3841 * ipr_read_dump - Dump the adapter
3842 * @filp: open sysfs file
3843 * @kobj: kobject struct
3844 * @bin_attr: bin_attribute struct
3847 * @count: buffer size
3850 * number of bytes printed to buffer
3852 static ssize_t ipr_read_dump(struct file *filp, struct kobject *kobj,
3853 struct bin_attribute *bin_attr,
3854 char *buf, loff_t off, size_t count)
3856 struct device *cdev = container_of(kobj, struct device, kobj);
3857 struct Scsi_Host *shost = class_to_shost(cdev);
3858 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
3859 struct ipr_dump *dump;
3860 unsigned long lock_flags = 0;
3865 if (!capable(CAP_SYS_ADMIN))
3868 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3869 dump = ioa_cfg->dump;
3871 if (ioa_cfg->sdt_state != DUMP_OBTAINED || !dump) {
3872 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3875 kref_get(&dump->kref);
3876 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3878 if (off > dump->driver_dump.hdr.len) {
3879 kref_put(&dump->kref, ipr_release_dump);
3883 if (off + count > dump->driver_dump.hdr.len) {
3884 count = dump->driver_dump.hdr.len - off;
3888 if (count && off < sizeof(dump->driver_dump)) {
3889 if (off + count > sizeof(dump->driver_dump))
3890 len = sizeof(dump->driver_dump) - off;
3893 src = (u8 *)&dump->driver_dump + off;
3894 memcpy(buf, src, len);
3900 off -= sizeof(dump->driver_dump);
3903 sdt_end = offsetof(struct ipr_ioa_dump, sdt.entry) +
3904 (be32_to_cpu(dump->ioa_dump.sdt.hdr.num_entries_used) *
3905 sizeof(struct ipr_sdt_entry));
3907 sdt_end = offsetof(struct ipr_ioa_dump, sdt.entry) +
3908 (IPR_FMT2_NUM_SDT_ENTRIES * sizeof(struct ipr_sdt_entry));
3910 if (count && off < sdt_end) {
3911 if (off + count > sdt_end)
3912 len = sdt_end - off;
3915 src = (u8 *)&dump->ioa_dump + off;
3916 memcpy(buf, src, len);
3925 if ((off & PAGE_MASK) != ((off + count) & PAGE_MASK))
3926 len = PAGE_ALIGN(off) - off;
3929 src = (u8 *)dump->ioa_dump.ioa_data[(off & PAGE_MASK) >> PAGE_SHIFT];
3930 src += off & ~PAGE_MASK;
3931 memcpy(buf, src, len);
3937 kref_put(&dump->kref, ipr_release_dump);
3942 * ipr_alloc_dump - Prepare for adapter dump
3943 * @ioa_cfg: ioa config struct
3946 * 0 on success / other on failure
3948 static int ipr_alloc_dump(struct ipr_ioa_cfg *ioa_cfg)
3950 struct ipr_dump *dump;
3952 unsigned long lock_flags = 0;
3954 dump = kzalloc(sizeof(struct ipr_dump), GFP_KERNEL);
3957 ipr_err("Dump memory allocation failed\n");
3962 ioa_data = vmalloc(IPR_FMT3_MAX_NUM_DUMP_PAGES * sizeof(__be32 *));
3964 ioa_data = vmalloc(IPR_FMT2_MAX_NUM_DUMP_PAGES * sizeof(__be32 *));
3967 ipr_err("Dump memory allocation failed\n");
3972 dump->ioa_dump.ioa_data = ioa_data;
3974 kref_init(&dump->kref);
3975 dump->ioa_cfg = ioa_cfg;
3977 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3979 if (INACTIVE != ioa_cfg->sdt_state) {
3980 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3981 vfree(dump->ioa_dump.ioa_data);
3986 ioa_cfg->dump = dump;
3987 ioa_cfg->sdt_state = WAIT_FOR_DUMP;
3988 if (ioa_cfg->ioa_is_dead && !ioa_cfg->dump_taken) {
3989 ioa_cfg->dump_taken = 1;
3990 schedule_work(&ioa_cfg->work_q);
3992 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3998 * ipr_free_dump - Free adapter dump memory
3999 * @ioa_cfg: ioa config struct
4002 * 0 on success / other on failure
4004 static int ipr_free_dump(struct ipr_ioa_cfg *ioa_cfg)
4006 struct ipr_dump *dump;
4007 unsigned long lock_flags = 0;
4011 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4012 dump = ioa_cfg->dump;
4014 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4018 ioa_cfg->dump = NULL;
4019 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4021 kref_put(&dump->kref, ipr_release_dump);
4028 * ipr_write_dump - Setup dump state of adapter
4029 * @filp: open sysfs file
4030 * @kobj: kobject struct
4031 * @bin_attr: bin_attribute struct
4034 * @count: buffer size
4037 * number of bytes printed to buffer
4039 static ssize_t ipr_write_dump(struct file *filp, struct kobject *kobj,
4040 struct bin_attribute *bin_attr,
4041 char *buf, loff_t off, size_t count)
4043 struct device *cdev = container_of(kobj, struct device, kobj);
4044 struct Scsi_Host *shost = class_to_shost(cdev);
4045 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
4048 if (!capable(CAP_SYS_ADMIN))
4052 rc = ipr_alloc_dump(ioa_cfg);
4053 else if (buf[0] == '0')
4054 rc = ipr_free_dump(ioa_cfg);
4064 static struct bin_attribute ipr_dump_attr = {
4067 .mode = S_IRUSR | S_IWUSR,
4070 .read = ipr_read_dump,
4071 .write = ipr_write_dump
4074 static int ipr_free_dump(struct ipr_ioa_cfg *ioa_cfg) { return 0; };
4078 * ipr_change_queue_depth - Change the device's queue depth
4079 * @sdev: scsi device struct
4080 * @qdepth: depth to set
4081 * @reason: calling context
4086 static int ipr_change_queue_depth(struct scsi_device *sdev, int qdepth,
4089 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)sdev->host->hostdata;
4090 struct ipr_resource_entry *res;
4091 unsigned long lock_flags = 0;
4093 if (reason != SCSI_QDEPTH_DEFAULT)
4096 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4097 res = (struct ipr_resource_entry *)sdev->hostdata;
4099 if (res && ipr_is_gata(res) && qdepth > IPR_MAX_CMD_PER_ATA_LUN)
4100 qdepth = IPR_MAX_CMD_PER_ATA_LUN;
4101 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4103 scsi_adjust_queue_depth(sdev, scsi_get_tag_type(sdev), qdepth);
4104 return sdev->queue_depth;
4108 * ipr_change_queue_type - Change the device's queue type
4109 * @dsev: scsi device struct
4110 * @tag_type: type of tags to use
4113 * actual queue type set
4115 static int ipr_change_queue_type(struct scsi_device *sdev, int tag_type)
4117 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)sdev->host->hostdata;
4118 struct ipr_resource_entry *res;
4119 unsigned long lock_flags = 0;
4121 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4122 res = (struct ipr_resource_entry *)sdev->hostdata;
4125 if (ipr_is_gscsi(res) && sdev->tagged_supported) {
4127 * We don't bother quiescing the device here since the
4128 * adapter firmware does it for us.
4130 scsi_set_tag_type(sdev, tag_type);
4133 scsi_activate_tcq(sdev, sdev->queue_depth);
4135 scsi_deactivate_tcq(sdev, sdev->queue_depth);
4141 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4146 * ipr_show_adapter_handle - Show the adapter's resource handle for this device
4147 * @dev: device struct
4148 * @attr: device attribute structure
4152 * number of bytes printed to buffer
4154 static ssize_t ipr_show_adapter_handle(struct device *dev, struct device_attribute *attr, char *buf)
4156 struct scsi_device *sdev = to_scsi_device(dev);
4157 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)sdev->host->hostdata;
4158 struct ipr_resource_entry *res;
4159 unsigned long lock_flags = 0;
4160 ssize_t len = -ENXIO;
4162 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4163 res = (struct ipr_resource_entry *)sdev->hostdata;
4165 len = snprintf(buf, PAGE_SIZE, "%08X\n", res->res_handle);
4166 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4170 static struct device_attribute ipr_adapter_handle_attr = {
4172 .name = "adapter_handle",
4175 .show = ipr_show_adapter_handle
4179 * ipr_show_resource_path - Show the resource path or the resource address for
4181 * @dev: device struct
4182 * @attr: device attribute structure
4186 * number of bytes printed to buffer
4188 static ssize_t ipr_show_resource_path(struct device *dev, struct device_attribute *attr, char *buf)
4190 struct scsi_device *sdev = to_scsi_device(dev);
4191 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)sdev->host->hostdata;
4192 struct ipr_resource_entry *res;
4193 unsigned long lock_flags = 0;
4194 ssize_t len = -ENXIO;
4195 char buffer[IPR_MAX_RES_PATH_LENGTH];
4197 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4198 res = (struct ipr_resource_entry *)sdev->hostdata;
4199 if (res && ioa_cfg->sis64)
4200 len = snprintf(buf, PAGE_SIZE, "%s\n",
4201 ipr_format_res_path(res->res_path, buffer,
4204 len = snprintf(buf, PAGE_SIZE, "%d:%d:%d:%d\n", ioa_cfg->host->host_no,
4205 res->bus, res->target, res->lun);
4207 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4211 static struct device_attribute ipr_resource_path_attr = {
4213 .name = "resource_path",
4216 .show = ipr_show_resource_path
4220 * ipr_show_device_id - Show the device_id for this device.
4221 * @dev: device struct
4222 * @attr: device attribute structure
4226 * number of bytes printed to buffer
4228 static ssize_t ipr_show_device_id(struct device *dev, struct device_attribute *attr, char *buf)
4230 struct scsi_device *sdev = to_scsi_device(dev);
4231 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)sdev->host->hostdata;
4232 struct ipr_resource_entry *res;
4233 unsigned long lock_flags = 0;
4234 ssize_t len = -ENXIO;
4236 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4237 res = (struct ipr_resource_entry *)sdev->hostdata;
4238 if (res && ioa_cfg->sis64)
4239 len = snprintf(buf, PAGE_SIZE, "0x%llx\n", res->dev_id);
4241 len = snprintf(buf, PAGE_SIZE, "0x%llx\n", res->lun_wwn);
4243 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4247 static struct device_attribute ipr_device_id_attr = {
4249 .name = "device_id",
4252 .show = ipr_show_device_id
4256 * ipr_show_resource_type - Show the resource type for this device.
4257 * @dev: device struct
4258 * @attr: device attribute structure
4262 * number of bytes printed to buffer
4264 static ssize_t ipr_show_resource_type(struct device *dev, struct device_attribute *attr, char *buf)
4266 struct scsi_device *sdev = to_scsi_device(dev);
4267 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)sdev->host->hostdata;
4268 struct ipr_resource_entry *res;
4269 unsigned long lock_flags = 0;
4270 ssize_t len = -ENXIO;
4272 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4273 res = (struct ipr_resource_entry *)sdev->hostdata;
4276 len = snprintf(buf, PAGE_SIZE, "%x\n", res->type);
4278 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4282 static struct device_attribute ipr_resource_type_attr = {
4284 .name = "resource_type",
4287 .show = ipr_show_resource_type
4290 static struct device_attribute *ipr_dev_attrs[] = {
4291 &ipr_adapter_handle_attr,
4292 &ipr_resource_path_attr,
4293 &ipr_device_id_attr,
4294 &ipr_resource_type_attr,
4299 * ipr_biosparam - Return the HSC mapping
4300 * @sdev: scsi device struct
4301 * @block_device: block device pointer
4302 * @capacity: capacity of the device
4303 * @parm: Array containing returned HSC values.
4305 * This function generates the HSC parms that fdisk uses.
4306 * We want to make sure we return something that places partitions
4307 * on 4k boundaries for best performance with the IOA.
4312 static int ipr_biosparam(struct scsi_device *sdev,
4313 struct block_device *block_device,
4314 sector_t capacity, int *parm)
4322 cylinders = capacity;
4323 sector_div(cylinders, (128 * 32));
4328 parm[2] = cylinders;
4334 * ipr_find_starget - Find target based on bus/target.
4335 * @starget: scsi target struct
4338 * resource entry pointer if found / NULL if not found
4340 static struct ipr_resource_entry *ipr_find_starget(struct scsi_target *starget)
4342 struct Scsi_Host *shost = dev_to_shost(&starget->dev);
4343 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) shost->hostdata;
4344 struct ipr_resource_entry *res;
4346 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) {
4347 if ((res->bus == starget->channel) &&
4348 (res->target == starget->id) &&
4357 static struct ata_port_info sata_port_info;
4360 * ipr_target_alloc - Prepare for commands to a SCSI target
4361 * @starget: scsi target struct
4363 * If the device is a SATA device, this function allocates an
4364 * ATA port with libata, else it does nothing.
4367 * 0 on success / non-0 on failure
4369 static int ipr_target_alloc(struct scsi_target *starget)
4371 struct Scsi_Host *shost = dev_to_shost(&starget->dev);
4372 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) shost->hostdata;
4373 struct ipr_sata_port *sata_port;
4374 struct ata_port *ap;
4375 struct ipr_resource_entry *res;
4376 unsigned long lock_flags;
4378 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4379 res = ipr_find_starget(starget);
4380 starget->hostdata = NULL;
4382 if (res && ipr_is_gata(res)) {
4383 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4384 sata_port = kzalloc(sizeof(*sata_port), GFP_KERNEL);
4388 ap = ata_sas_port_alloc(&ioa_cfg->ata_host, &sata_port_info, shost);
4390 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4391 sata_port->ioa_cfg = ioa_cfg;
4393 sata_port->res = res;
4395 res->sata_port = sata_port;
4396 ap->private_data = sata_port;
4397 starget->hostdata = sata_port;
4403 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4409 * ipr_target_destroy - Destroy a SCSI target
4410 * @starget: scsi target struct
4412 * If the device was a SATA device, this function frees the libata
4413 * ATA port, else it does nothing.
4416 static void ipr_target_destroy(struct scsi_target *starget)
4418 struct ipr_sata_port *sata_port = starget->hostdata;
4419 struct Scsi_Host *shost = dev_to_shost(&starget->dev);
4420 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) shost->hostdata;
4422 if (ioa_cfg->sis64) {
4423 if (starget->channel == IPR_ARRAY_VIRTUAL_BUS)
4424 clear_bit(starget->id, ioa_cfg->array_ids);
4425 else if (starget->channel == IPR_VSET_VIRTUAL_BUS)
4426 clear_bit(starget->id, ioa_cfg->vset_ids);
4427 else if (starget->channel == 0)
4428 clear_bit(starget->id, ioa_cfg->target_ids);
4432 starget->hostdata = NULL;
4433 ata_sas_port_destroy(sata_port->ap);
4439 * ipr_find_sdev - Find device based on bus/target/lun.
4440 * @sdev: scsi device struct
4443 * resource entry pointer if found / NULL if not found
4445 static struct ipr_resource_entry *ipr_find_sdev(struct scsi_device *sdev)
4447 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) sdev->host->hostdata;
4448 struct ipr_resource_entry *res;
4450 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) {
4451 if ((res->bus == sdev->channel) &&
4452 (res->target == sdev->id) &&
4453 (res->lun == sdev->lun))
4461 * ipr_slave_destroy - Unconfigure a SCSI device
4462 * @sdev: scsi device struct
4467 static void ipr_slave_destroy(struct scsi_device *sdev)
4469 struct ipr_resource_entry *res;
4470 struct ipr_ioa_cfg *ioa_cfg;
4471 unsigned long lock_flags = 0;
4473 ioa_cfg = (struct ipr_ioa_cfg *) sdev->host->hostdata;
4475 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4476 res = (struct ipr_resource_entry *) sdev->hostdata;
4479 res->sata_port->ap->link.device[0].class = ATA_DEV_NONE;
4480 sdev->hostdata = NULL;
4482 res->sata_port = NULL;
4484 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4488 * ipr_slave_configure - Configure a SCSI device
4489 * @sdev: scsi device struct
4491 * This function configures the specified scsi device.
4496 static int ipr_slave_configure(struct scsi_device *sdev)
4498 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) sdev->host->hostdata;
4499 struct ipr_resource_entry *res;
4500 struct ata_port *ap = NULL;
4501 unsigned long lock_flags = 0;
4502 char buffer[IPR_MAX_RES_PATH_LENGTH];
4504 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4505 res = sdev->hostdata;
4507 if (ipr_is_af_dasd_device(res))
4508 sdev->type = TYPE_RAID;
4509 if (ipr_is_af_dasd_device(res) || ipr_is_ioa_resource(res)) {
4510 sdev->scsi_level = 4;
4511 sdev->no_uld_attach = 1;
4513 if (ipr_is_vset_device(res)) {
4514 blk_queue_rq_timeout(sdev->request_queue,
4515 IPR_VSET_RW_TIMEOUT);
4516 blk_queue_max_hw_sectors(sdev->request_queue, IPR_VSET_MAX_SECTORS);
4518 if (ipr_is_gata(res) && res->sata_port)
4519 ap = res->sata_port->ap;
4520 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4523 scsi_adjust_queue_depth(sdev, 0, IPR_MAX_CMD_PER_ATA_LUN);
4524 ata_sas_slave_configure(sdev, ap);
4526 scsi_adjust_queue_depth(sdev, 0, sdev->host->cmd_per_lun);
4528 sdev_printk(KERN_INFO, sdev, "Resource path: %s\n",
4529 ipr_format_res_path(res->res_path, buffer,
4533 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4538 * ipr_ata_slave_alloc - Prepare for commands to a SATA device
4539 * @sdev: scsi device struct
4541 * This function initializes an ATA port so that future commands
4542 * sent through queuecommand will work.
4547 static int ipr_ata_slave_alloc(struct scsi_device *sdev)
4549 struct ipr_sata_port *sata_port = NULL;
4553 if (sdev->sdev_target)
4554 sata_port = sdev->sdev_target->hostdata;
4556 rc = ata_sas_port_init(sata_port->ap);
4558 ipr_slave_destroy(sdev);
4565 * ipr_slave_alloc - Prepare for commands to a device.
4566 * @sdev: scsi device struct
4568 * This function saves a pointer to the resource entry
4569 * in the scsi device struct if the device exists. We
4570 * can then use this pointer in ipr_queuecommand when
4571 * handling new commands.
4574 * 0 on success / -ENXIO if device does not exist
4576 static int ipr_slave_alloc(struct scsi_device *sdev)
4578 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) sdev->host->hostdata;
4579 struct ipr_resource_entry *res;
4580 unsigned long lock_flags;
4583 sdev->hostdata = NULL;
4585 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4587 res = ipr_find_sdev(sdev);
4592 sdev->hostdata = res;
4593 if (!ipr_is_naca_model(res))
4594 res->needs_sync_complete = 1;
4596 if (ipr_is_gata(res)) {
4597 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4598 return ipr_ata_slave_alloc(sdev);
4602 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4608 * ipr_eh_host_reset - Reset the host adapter
4609 * @scsi_cmd: scsi command struct
4614 static int __ipr_eh_host_reset(struct scsi_cmnd * scsi_cmd)
4616 struct ipr_ioa_cfg *ioa_cfg;
4620 ioa_cfg = (struct ipr_ioa_cfg *) scsi_cmd->device->host->hostdata;
4622 dev_err(&ioa_cfg->pdev->dev,
4623 "Adapter being reset as a result of error recovery.\n");
4625 if (WAIT_FOR_DUMP == ioa_cfg->sdt_state)
4626 ioa_cfg->sdt_state = GET_DUMP;
4628 rc = ipr_reset_reload(ioa_cfg, IPR_SHUTDOWN_ABBREV);
4634 static int ipr_eh_host_reset(struct scsi_cmnd * cmd)
4638 spin_lock_irq(cmd->device->host->host_lock);
4639 rc = __ipr_eh_host_reset(cmd);
4640 spin_unlock_irq(cmd->device->host->host_lock);
4646 * ipr_device_reset - Reset the device
4647 * @ioa_cfg: ioa config struct
4648 * @res: resource entry struct
4650 * This function issues a device reset to the affected device.
4651 * If the device is a SCSI device, a LUN reset will be sent
4652 * to the device first. If that does not work, a target reset
4653 * will be sent. If the device is a SATA device, a PHY reset will
4657 * 0 on success / non-zero on failure
4659 static int ipr_device_reset(struct ipr_ioa_cfg *ioa_cfg,
4660 struct ipr_resource_entry *res)
4662 struct ipr_cmnd *ipr_cmd;
4663 struct ipr_ioarcb *ioarcb;
4664 struct ipr_cmd_pkt *cmd_pkt;
4665 struct ipr_ioarcb_ata_regs *regs;
4669 ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg);
4670 ioarcb = &ipr_cmd->ioarcb;
4671 cmd_pkt = &ioarcb->cmd_pkt;
4673 if (ipr_cmd->ioa_cfg->sis64) {
4674 regs = &ipr_cmd->i.ata_ioadl.regs;
4675 ioarcb->add_cmd_parms_offset = cpu_to_be16(sizeof(*ioarcb));
4677 regs = &ioarcb->u.add_data.u.regs;
4679 ioarcb->res_handle = res->res_handle;
4680 cmd_pkt->request_type = IPR_RQTYPE_IOACMD;
4681 cmd_pkt->cdb[0] = IPR_RESET_DEVICE;
4682 if (ipr_is_gata(res)) {
4683 cmd_pkt->cdb[2] = IPR_ATA_PHY_RESET;
4684 ioarcb->add_cmd_parms_len = cpu_to_be16(sizeof(regs->flags));
4685 regs->flags |= IPR_ATA_FLAG_STATUS_ON_GOOD_COMPLETION;
4688 ipr_send_blocking_cmd(ipr_cmd, ipr_timeout, IPR_DEVICE_RESET_TIMEOUT);
4689 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
4690 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
4691 if (ipr_is_gata(res) && res->sata_port && ioasc != IPR_IOASC_IOA_WAS_RESET) {
4692 if (ipr_cmd->ioa_cfg->sis64)
4693 memcpy(&res->sata_port->ioasa, &ipr_cmd->s.ioasa64.u.gata,
4694 sizeof(struct ipr_ioasa_gata));
4696 memcpy(&res->sata_port->ioasa, &ipr_cmd->s.ioasa.u.gata,
4697 sizeof(struct ipr_ioasa_gata));
4701 return (IPR_IOASC_SENSE_KEY(ioasc) ? -EIO : 0);
4705 * ipr_sata_reset - Reset the SATA port
4706 * @link: SATA link to reset
4707 * @classes: class of the attached device
4709 * This function issues a SATA phy reset to the affected ATA link.
4712 * 0 on success / non-zero on failure
4714 static int ipr_sata_reset(struct ata_link *link, unsigned int *classes,
4715 unsigned long deadline)
4717 struct ipr_sata_port *sata_port = link->ap->private_data;
4718 struct ipr_ioa_cfg *ioa_cfg = sata_port->ioa_cfg;
4719 struct ipr_resource_entry *res;
4720 unsigned long lock_flags = 0;
4724 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4725 while(ioa_cfg->in_reset_reload) {
4726 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4727 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
4728 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4731 res = sata_port->res;
4733 rc = ipr_device_reset(ioa_cfg, res);
4734 *classes = res->ata_class;
4737 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4743 * ipr_eh_dev_reset - Reset the device
4744 * @scsi_cmd: scsi command struct
4746 * This function issues a device reset to the affected device.
4747 * A LUN reset will be sent to the device first. If that does
4748 * not work, a target reset will be sent.
4753 static int __ipr_eh_dev_reset(struct scsi_cmnd * scsi_cmd)
4755 struct ipr_cmnd *ipr_cmd;
4756 struct ipr_ioa_cfg *ioa_cfg;
4757 struct ipr_resource_entry *res;
4758 struct ata_port *ap;
4762 ioa_cfg = (struct ipr_ioa_cfg *) scsi_cmd->device->host->hostdata;
4763 res = scsi_cmd->device->hostdata;
4769 * If we are currently going through reset/reload, return failed. This will force the
4770 * mid-layer to call ipr_eh_host_reset, which will then go to sleep and wait for the
4773 if (ioa_cfg->in_reset_reload)
4775 if (ioa_cfg->ioa_is_dead)
4778 list_for_each_entry(ipr_cmd, &ioa_cfg->pending_q, queue) {
4779 if (ipr_cmd->ioarcb.res_handle == res->res_handle) {
4780 if (ipr_cmd->scsi_cmd)
4781 ipr_cmd->done = ipr_scsi_eh_done;
4783 ipr_cmd->done = ipr_sata_eh_done;
4784 if (ipr_cmd->qc && !(ipr_cmd->qc->flags & ATA_QCFLAG_FAILED)) {
4785 ipr_cmd->qc->err_mask |= AC_ERR_TIMEOUT;
4786 ipr_cmd->qc->flags |= ATA_QCFLAG_FAILED;
4791 res->resetting_device = 1;
4792 scmd_printk(KERN_ERR, scsi_cmd, "Resetting device\n");
4794 if (ipr_is_gata(res) && res->sata_port) {
4795 ap = res->sata_port->ap;
4796 spin_unlock_irq(scsi_cmd->device->host->host_lock);
4797 ata_std_error_handler(ap);
4798 spin_lock_irq(scsi_cmd->device->host->host_lock);
4800 list_for_each_entry(ipr_cmd, &ioa_cfg->pending_q, queue) {
4801 if (ipr_cmd->ioarcb.res_handle == res->res_handle) {
4807 rc = ipr_device_reset(ioa_cfg, res);
4808 res->resetting_device = 0;
4811 return (rc ? FAILED : SUCCESS);
4814 static int ipr_eh_dev_reset(struct scsi_cmnd * cmd)
4818 spin_lock_irq(cmd->device->host->host_lock);
4819 rc = __ipr_eh_dev_reset(cmd);
4820 spin_unlock_irq(cmd->device->host->host_lock);
4826 * ipr_bus_reset_done - Op done function for bus reset.
4827 * @ipr_cmd: ipr command struct
4829 * This function is the op done function for a bus reset
4834 static void ipr_bus_reset_done(struct ipr_cmnd *ipr_cmd)
4836 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
4837 struct ipr_resource_entry *res;
4840 if (!ioa_cfg->sis64)
4841 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) {
4842 if (res->res_handle == ipr_cmd->ioarcb.res_handle) {
4843 scsi_report_bus_reset(ioa_cfg->host, res->bus);
4849 * If abort has not completed, indicate the reset has, else call the
4850 * abort's done function to wake the sleeping eh thread
4852 if (ipr_cmd->sibling->sibling)
4853 ipr_cmd->sibling->sibling = NULL;
4855 ipr_cmd->sibling->done(ipr_cmd->sibling);
4857 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
4862 * ipr_abort_timeout - An abort task has timed out
4863 * @ipr_cmd: ipr command struct
4865 * This function handles when an abort task times out. If this
4866 * happens we issue a bus reset since we have resources tied
4867 * up that must be freed before returning to the midlayer.
4872 static void ipr_abort_timeout(struct ipr_cmnd *ipr_cmd)
4874 struct ipr_cmnd *reset_cmd;
4875 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
4876 struct ipr_cmd_pkt *cmd_pkt;
4877 unsigned long lock_flags = 0;
4880 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4881 if (ipr_cmd->completion.done || ioa_cfg->in_reset_reload) {
4882 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4886 sdev_printk(KERN_ERR, ipr_cmd->u.sdev, "Abort timed out. Resetting bus.\n");
4887 reset_cmd = ipr_get_free_ipr_cmnd(ioa_cfg);
4888 ipr_cmd->sibling = reset_cmd;
4889 reset_cmd->sibling = ipr_cmd;
4890 reset_cmd->ioarcb.res_handle = ipr_cmd->ioarcb.res_handle;
4891 cmd_pkt = &reset_cmd->ioarcb.cmd_pkt;
4892 cmd_pkt->request_type = IPR_RQTYPE_IOACMD;
4893 cmd_pkt->cdb[0] = IPR_RESET_DEVICE;
4894 cmd_pkt->cdb[2] = IPR_RESET_TYPE_SELECT | IPR_BUS_RESET;
4896 ipr_do_req(reset_cmd, ipr_bus_reset_done, ipr_timeout, IPR_DEVICE_RESET_TIMEOUT);
4897 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4902 * ipr_cancel_op - Cancel specified op
4903 * @scsi_cmd: scsi command struct
4905 * This function cancels specified op.
4910 static int ipr_cancel_op(struct scsi_cmnd * scsi_cmd)
4912 struct ipr_cmnd *ipr_cmd;
4913 struct ipr_ioa_cfg *ioa_cfg;
4914 struct ipr_resource_entry *res;
4915 struct ipr_cmd_pkt *cmd_pkt;
4920 ioa_cfg = (struct ipr_ioa_cfg *)scsi_cmd->device->host->hostdata;
4921 res = scsi_cmd->device->hostdata;
4923 /* If we are currently going through reset/reload, return failed.
4924 * This will force the mid-layer to call ipr_eh_host_reset,
4925 * which will then go to sleep and wait for the reset to complete
4927 if (ioa_cfg->in_reset_reload || ioa_cfg->ioa_is_dead)
4929 if (!res || !ipr_is_gscsi(res))
4932 list_for_each_entry(ipr_cmd, &ioa_cfg->pending_q, queue) {
4933 if (ipr_cmd->scsi_cmd == scsi_cmd) {
4934 ipr_cmd->done = ipr_scsi_eh_done;
4943 ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg);
4944 ipr_cmd->ioarcb.res_handle = res->res_handle;
4945 cmd_pkt = &ipr_cmd->ioarcb.cmd_pkt;
4946 cmd_pkt->request_type = IPR_RQTYPE_IOACMD;
4947 cmd_pkt->cdb[0] = IPR_CANCEL_ALL_REQUESTS;
4948 ipr_cmd->u.sdev = scsi_cmd->device;
4950 scmd_printk(KERN_ERR, scsi_cmd, "Aborting command: %02X\n",
4952 ipr_send_blocking_cmd(ipr_cmd, ipr_abort_timeout, IPR_CANCEL_ALL_TIMEOUT);
4953 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
4956 * If the abort task timed out and we sent a bus reset, we will get
4957 * one the following responses to the abort
4959 if (ioasc == IPR_IOASC_BUS_WAS_RESET || ioasc == IPR_IOASC_SYNC_REQUIRED) {
4964 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
4965 if (!ipr_is_naca_model(res))
4966 res->needs_sync_complete = 1;
4969 return (IPR_IOASC_SENSE_KEY(ioasc) ? FAILED : SUCCESS);
4973 * ipr_eh_abort - Abort a single op
4974 * @scsi_cmd: scsi command struct
4979 static int ipr_eh_abort(struct scsi_cmnd * scsi_cmd)
4981 unsigned long flags;
4986 spin_lock_irqsave(scsi_cmd->device->host->host_lock, flags);
4987 rc = ipr_cancel_op(scsi_cmd);
4988 spin_unlock_irqrestore(scsi_cmd->device->host->host_lock, flags);
4995 * ipr_handle_other_interrupt - Handle "other" interrupts
4996 * @ioa_cfg: ioa config struct
4997 * @int_reg: interrupt register
5000 * IRQ_NONE / IRQ_HANDLED
5002 static irqreturn_t ipr_handle_other_interrupt(struct ipr_ioa_cfg *ioa_cfg,
5005 irqreturn_t rc = IRQ_HANDLED;
5008 int_mask_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg32);
5009 int_reg &= ~int_mask_reg;
5011 /* If an interrupt on the adapter did not occur, ignore it.
5012 * Or in the case of SIS 64, check for a stage change interrupt.
5014 if ((int_reg & IPR_PCII_OPER_INTERRUPTS) == 0) {
5015 if (ioa_cfg->sis64) {
5016 int_mask_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg);
5017 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg) & ~int_mask_reg;
5018 if (int_reg & IPR_PCII_IPL_STAGE_CHANGE) {
5020 /* clear stage change */
5021 writel(IPR_PCII_IPL_STAGE_CHANGE, ioa_cfg->regs.clr_interrupt_reg);
5022 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg) & ~int_mask_reg;
5023 list_del(&ioa_cfg->reset_cmd->queue);
5024 del_timer(&ioa_cfg->reset_cmd->timer);
5025 ipr_reset_ioa_job(ioa_cfg->reset_cmd);
5033 if (int_reg & IPR_PCII_IOA_TRANS_TO_OPER) {
5034 /* Mask the interrupt */
5035 writel(IPR_PCII_IOA_TRANS_TO_OPER, ioa_cfg->regs.set_interrupt_mask_reg);
5037 /* Clear the interrupt */
5038 writel(IPR_PCII_IOA_TRANS_TO_OPER, ioa_cfg->regs.clr_interrupt_reg);
5039 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg);
5041 list_del(&ioa_cfg->reset_cmd->queue);
5042 del_timer(&ioa_cfg->reset_cmd->timer);
5043 ipr_reset_ioa_job(ioa_cfg->reset_cmd);
5044 } else if ((int_reg & IPR_PCII_HRRQ_UPDATED) == int_reg) {
5045 if (ipr_debug && printk_ratelimit())
5046 dev_err(&ioa_cfg->pdev->dev,
5047 "Spurious interrupt detected. 0x%08X\n", int_reg);
5048 writel(IPR_PCII_HRRQ_UPDATED, ioa_cfg->regs.clr_interrupt_reg32);
5049 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg32);
5052 if (int_reg & IPR_PCII_IOA_UNIT_CHECKED)
5053 ioa_cfg->ioa_unit_checked = 1;
5055 dev_err(&ioa_cfg->pdev->dev,
5056 "Permanent IOA failure. 0x%08X\n", int_reg);
5058 if (WAIT_FOR_DUMP == ioa_cfg->sdt_state)
5059 ioa_cfg->sdt_state = GET_DUMP;
5061 ipr_mask_and_clear_interrupts(ioa_cfg, ~0);
5062 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
5069 * ipr_isr_eh - Interrupt service routine error handler
5070 * @ioa_cfg: ioa config struct
5071 * @msg: message to log
5076 static void ipr_isr_eh(struct ipr_ioa_cfg *ioa_cfg, char *msg)
5078 ioa_cfg->errors_logged++;
5079 dev_err(&ioa_cfg->pdev->dev, "%s\n", msg);
5081 if (WAIT_FOR_DUMP == ioa_cfg->sdt_state)
5082 ioa_cfg->sdt_state = GET_DUMP;
5084 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
5088 * ipr_isr - Interrupt service routine
5090 * @devp: pointer to ioa config struct
5093 * IRQ_NONE / IRQ_HANDLED
5095 static irqreturn_t ipr_isr(int irq, void *devp)
5097 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)devp;
5098 unsigned long lock_flags = 0;
5104 struct ipr_cmnd *ipr_cmd;
5105 irqreturn_t rc = IRQ_NONE;
5107 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
5109 /* If interrupts are disabled, ignore the interrupt */
5110 if (!ioa_cfg->allow_interrupts) {
5111 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
5118 while ((be32_to_cpu(*ioa_cfg->hrrq_curr) & IPR_HRRQ_TOGGLE_BIT) ==
5119 ioa_cfg->toggle_bit) {
5121 cmd_index = (be32_to_cpu(*ioa_cfg->hrrq_curr) &
5122 IPR_HRRQ_REQ_RESP_HANDLE_MASK) >> IPR_HRRQ_REQ_RESP_HANDLE_SHIFT;
5124 if (unlikely(cmd_index >= IPR_NUM_CMD_BLKS)) {
5125 ipr_isr_eh(ioa_cfg, "Invalid response handle from IOA");
5126 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
5130 ipr_cmd = ioa_cfg->ipr_cmnd_list[cmd_index];
5132 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
5134 ipr_trc_hook(ipr_cmd, IPR_TRACE_FINISH, ioasc);
5136 list_del(&ipr_cmd->queue);
5137 del_timer(&ipr_cmd->timer);
5138 ipr_cmd->done(ipr_cmd);
5142 if (ioa_cfg->hrrq_curr < ioa_cfg->hrrq_end) {
5143 ioa_cfg->hrrq_curr++;
5145 ioa_cfg->hrrq_curr = ioa_cfg->hrrq_start;
5146 ioa_cfg->toggle_bit ^= 1u;
5150 if (ipr_cmd != NULL) {
5151 /* Clear the PCI interrupt */
5154 writel(IPR_PCII_HRRQ_UPDATED, ioa_cfg->regs.clr_interrupt_reg32);
5155 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg32);
5156 } while (int_reg & IPR_PCII_HRRQ_UPDATED &&
5157 num_hrrq++ < IPR_MAX_HRRQ_RETRIES);
5159 } else if (rc == IRQ_NONE && irq_none == 0) {
5160 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg32);
5162 } else if (num_hrrq == IPR_MAX_HRRQ_RETRIES &&
5163 int_reg & IPR_PCII_HRRQ_UPDATED) {
5164 ipr_isr_eh(ioa_cfg, "Error clearing HRRQ");
5165 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
5171 if (unlikely(rc == IRQ_NONE))
5172 rc = ipr_handle_other_interrupt(ioa_cfg, int_reg);
5174 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
5179 * ipr_build_ioadl64 - Build a scatter/gather list and map the buffer
5180 * @ioa_cfg: ioa config struct
5181 * @ipr_cmd: ipr command struct
5184 * 0 on success / -1 on failure
5186 static int ipr_build_ioadl64(struct ipr_ioa_cfg *ioa_cfg,
5187 struct ipr_cmnd *ipr_cmd)
5190 struct scatterlist *sg;
5192 u32 ioadl_flags = 0;
5193 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd;
5194 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
5195 struct ipr_ioadl64_desc *ioadl64 = ipr_cmd->i.ioadl64;
5197 length = scsi_bufflen(scsi_cmd);
5201 nseg = scsi_dma_map(scsi_cmd);
5203 if (printk_ratelimit())
5204 dev_err(&ioa_cfg->pdev->dev, "pci_map_sg failed!\n");
5208 ipr_cmd->dma_use_sg = nseg;
5210 ioarcb->data_transfer_length = cpu_to_be32(length);
5212 cpu_to_be32(sizeof(struct ipr_ioadl64_desc) * ipr_cmd->dma_use_sg);
5214 if (scsi_cmd->sc_data_direction == DMA_TO_DEVICE) {
5215 ioadl_flags = IPR_IOADL_FLAGS_WRITE;
5216 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ;
5217 } else if (scsi_cmd->sc_data_direction == DMA_FROM_DEVICE)
5218 ioadl_flags = IPR_IOADL_FLAGS_READ;
5220 scsi_for_each_sg(scsi_cmd, sg, ipr_cmd->dma_use_sg, i) {
5221 ioadl64[i].flags = cpu_to_be32(ioadl_flags);
5222 ioadl64[i].data_len = cpu_to_be32(sg_dma_len(sg));
5223 ioadl64[i].address = cpu_to_be64(sg_dma_address(sg));
5226 ioadl64[i-1].flags |= cpu_to_be32(IPR_IOADL_FLAGS_LAST);
5231 * ipr_build_ioadl - Build a scatter/gather list and map the buffer
5232 * @ioa_cfg: ioa config struct
5233 * @ipr_cmd: ipr command struct
5236 * 0 on success / -1 on failure
5238 static int ipr_build_ioadl(struct ipr_ioa_cfg *ioa_cfg,
5239 struct ipr_cmnd *ipr_cmd)
5242 struct scatterlist *sg;
5244 u32 ioadl_flags = 0;
5245 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd;
5246 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
5247 struct ipr_ioadl_desc *ioadl = ipr_cmd->i.ioadl;
5249 length = scsi_bufflen(scsi_cmd);
5253 nseg = scsi_dma_map(scsi_cmd);
5255 dev_err(&ioa_cfg->pdev->dev, "pci_map_sg failed!\n");
5259 ipr_cmd->dma_use_sg = nseg;
5261 if (scsi_cmd->sc_data_direction == DMA_TO_DEVICE) {
5262 ioadl_flags = IPR_IOADL_FLAGS_WRITE;
5263 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ;
5264 ioarcb->data_transfer_length = cpu_to_be32(length);
5266 cpu_to_be32(sizeof(struct ipr_ioadl_desc) * ipr_cmd->dma_use_sg);
5267 } else if (scsi_cmd->sc_data_direction == DMA_FROM_DEVICE) {
5268 ioadl_flags = IPR_IOADL_FLAGS_READ;
5269 ioarcb->read_data_transfer_length = cpu_to_be32(length);
5270 ioarcb->read_ioadl_len =
5271 cpu_to_be32(sizeof(struct ipr_ioadl_desc) * ipr_cmd->dma_use_sg);
5274 if (ipr_cmd->dma_use_sg <= ARRAY_SIZE(ioarcb->u.add_data.u.ioadl)) {
5275 ioadl = ioarcb->u.add_data.u.ioadl;
5276 ioarcb->write_ioadl_addr = cpu_to_be32((ipr_cmd->dma_addr) +
5277 offsetof(struct ipr_ioarcb, u.add_data));
5278 ioarcb->read_ioadl_addr = ioarcb->write_ioadl_addr;
5281 scsi_for_each_sg(scsi_cmd, sg, ipr_cmd->dma_use_sg, i) {
5282 ioadl[i].flags_and_data_len =
5283 cpu_to_be32(ioadl_flags | sg_dma_len(sg));
5284 ioadl[i].address = cpu_to_be32(sg_dma_address(sg));
5287 ioadl[i-1].flags_and_data_len |= cpu_to_be32(IPR_IOADL_FLAGS_LAST);
5292 * ipr_get_task_attributes - Translate SPI Q-Tag to task attributes
5293 * @scsi_cmd: scsi command struct
5298 static u8 ipr_get_task_attributes(struct scsi_cmnd *scsi_cmd)
5301 u8 rc = IPR_FLAGS_LO_UNTAGGED_TASK;
5303 if (scsi_populate_tag_msg(scsi_cmd, tag)) {
5305 case MSG_SIMPLE_TAG:
5306 rc = IPR_FLAGS_LO_SIMPLE_TASK;
5309 rc = IPR_FLAGS_LO_HEAD_OF_Q_TASK;
5311 case MSG_ORDERED_TAG:
5312 rc = IPR_FLAGS_LO_ORDERED_TASK;
5321 * ipr_erp_done - Process completion of ERP for a device
5322 * @ipr_cmd: ipr command struct
5324 * This function copies the sense buffer into the scsi_cmd
5325 * struct and pushes the scsi_done function.
5330 static void ipr_erp_done(struct ipr_cmnd *ipr_cmd)
5332 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd;
5333 struct ipr_resource_entry *res = scsi_cmd->device->hostdata;
5334 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
5335 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
5337 if (IPR_IOASC_SENSE_KEY(ioasc) > 0) {
5338 scsi_cmd->result |= (DID_ERROR << 16);
5339 scmd_printk(KERN_ERR, scsi_cmd,
5340 "Request Sense failed with IOASC: 0x%08X\n", ioasc);
5342 memcpy(scsi_cmd->sense_buffer, ipr_cmd->sense_buffer,
5343 SCSI_SENSE_BUFFERSIZE);
5347 if (!ipr_is_naca_model(res))
5348 res->needs_sync_complete = 1;
5351 scsi_dma_unmap(ipr_cmd->scsi_cmd);
5352 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
5353 scsi_cmd->scsi_done(scsi_cmd);
5357 * ipr_reinit_ipr_cmnd_for_erp - Re-initialize a cmnd block to be used for ERP
5358 * @ipr_cmd: ipr command struct
5363 static void ipr_reinit_ipr_cmnd_for_erp(struct ipr_cmnd *ipr_cmd)
5365 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
5366 struct ipr_ioasa *ioasa = &ipr_cmd->s.ioasa;
5367 dma_addr_t dma_addr = ipr_cmd->dma_addr;
5369 memset(&ioarcb->cmd_pkt, 0, sizeof(struct ipr_cmd_pkt));
5370 ioarcb->data_transfer_length = 0;
5371 ioarcb->read_data_transfer_length = 0;
5372 ioarcb->ioadl_len = 0;
5373 ioarcb->read_ioadl_len = 0;
5374 ioasa->hdr.ioasc = 0;
5375 ioasa->hdr.residual_data_len = 0;
5377 if (ipr_cmd->ioa_cfg->sis64)
5378 ioarcb->u.sis64_addr_data.data_ioadl_addr =
5379 cpu_to_be64(dma_addr + offsetof(struct ipr_cmnd, i.ioadl64));
5381 ioarcb->write_ioadl_addr =
5382 cpu_to_be32(dma_addr + offsetof(struct ipr_cmnd, i.ioadl));
5383 ioarcb->read_ioadl_addr = ioarcb->write_ioadl_addr;
5388 * ipr_erp_request_sense - Send request sense to a device
5389 * @ipr_cmd: ipr command struct
5391 * This function sends a request sense to a device as a result
5392 * of a check condition.
5397 static void ipr_erp_request_sense(struct ipr_cmnd *ipr_cmd)
5399 struct ipr_cmd_pkt *cmd_pkt = &ipr_cmd->ioarcb.cmd_pkt;
5400 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
5402 if (IPR_IOASC_SENSE_KEY(ioasc) > 0) {
5403 ipr_erp_done(ipr_cmd);
5407 ipr_reinit_ipr_cmnd_for_erp(ipr_cmd);
5409 cmd_pkt->request_type = IPR_RQTYPE_SCSICDB;
5410 cmd_pkt->cdb[0] = REQUEST_SENSE;
5411 cmd_pkt->cdb[4] = SCSI_SENSE_BUFFERSIZE;
5412 cmd_pkt->flags_hi |= IPR_FLAGS_HI_SYNC_OVERRIDE;
5413 cmd_pkt->flags_hi |= IPR_FLAGS_HI_NO_ULEN_CHK;
5414 cmd_pkt->timeout = cpu_to_be16(IPR_REQUEST_SENSE_TIMEOUT / HZ);
5416 ipr_init_ioadl(ipr_cmd, ipr_cmd->sense_buffer_dma,
5417 SCSI_SENSE_BUFFERSIZE, IPR_IOADL_FLAGS_READ_LAST);
5419 ipr_do_req(ipr_cmd, ipr_erp_done, ipr_timeout,
5420 IPR_REQUEST_SENSE_TIMEOUT * 2);
5424 * ipr_erp_cancel_all - Send cancel all to a device
5425 * @ipr_cmd: ipr command struct
5427 * This function sends a cancel all to a device to clear the
5428 * queue. If we are running TCQ on the device, QERR is set to 1,
5429 * which means all outstanding ops have been dropped on the floor.
5430 * Cancel all will return them to us.
5435 static void ipr_erp_cancel_all(struct ipr_cmnd *ipr_cmd)
5437 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd;
5438 struct ipr_resource_entry *res = scsi_cmd->device->hostdata;
5439 struct ipr_cmd_pkt *cmd_pkt;
5443 ipr_reinit_ipr_cmnd_for_erp(ipr_cmd);
5445 if (!scsi_get_tag_type(scsi_cmd->device)) {
5446 ipr_erp_request_sense(ipr_cmd);
5450 cmd_pkt = &ipr_cmd->ioarcb.cmd_pkt;
5451 cmd_pkt->request_type = IPR_RQTYPE_IOACMD;
5452 cmd_pkt->cdb[0] = IPR_CANCEL_ALL_REQUESTS;
5454 ipr_do_req(ipr_cmd, ipr_erp_request_sense, ipr_timeout,
5455 IPR_CANCEL_ALL_TIMEOUT);
5459 * ipr_dump_ioasa - Dump contents of IOASA
5460 * @ioa_cfg: ioa config struct
5461 * @ipr_cmd: ipr command struct
5462 * @res: resource entry struct
5464 * This function is invoked by the interrupt handler when ops
5465 * fail. It will log the IOASA if appropriate. Only called
5471 static void ipr_dump_ioasa(struct ipr_ioa_cfg *ioa_cfg,
5472 struct ipr_cmnd *ipr_cmd, struct ipr_resource_entry *res)
5476 u32 ioasc, fd_ioasc;
5477 struct ipr_ioasa *ioasa = &ipr_cmd->s.ioasa;
5478 __be32 *ioasa_data = (__be32 *)ioasa;
5481 ioasc = be32_to_cpu(ioasa->hdr.ioasc) & IPR_IOASC_IOASC_MASK;
5482 fd_ioasc = be32_to_cpu(ioasa->hdr.fd_ioasc) & IPR_IOASC_IOASC_MASK;
5487 if (ioa_cfg->log_level < IPR_DEFAULT_LOG_LEVEL)
5490 if (ioasc == IPR_IOASC_BUS_WAS_RESET && fd_ioasc)
5491 error_index = ipr_get_error(fd_ioasc);
5493 error_index = ipr_get_error(ioasc);
5495 if (ioa_cfg->log_level < IPR_MAX_LOG_LEVEL) {
5496 /* Don't log an error if the IOA already logged one */
5497 if (ioasa->hdr.ilid != 0)
5500 if (!ipr_is_gscsi(res))
5503 if (ipr_error_table[error_index].log_ioasa == 0)
5507 ipr_res_err(ioa_cfg, res, "%s\n", ipr_error_table[error_index].error);
5509 data_len = be16_to_cpu(ioasa->hdr.ret_stat_len);
5510 if (ioa_cfg->sis64 && sizeof(struct ipr_ioasa64) < data_len)
5511 data_len = sizeof(struct ipr_ioasa64);
5512 else if (!ioa_cfg->sis64 && sizeof(struct ipr_ioasa) < data_len)
5513 data_len = sizeof(struct ipr_ioasa);
5515 ipr_err("IOASA Dump:\n");
5517 for (i = 0; i < data_len / 4; i += 4) {
5518 ipr_err("%08X: %08X %08X %08X %08X\n", i*4,
5519 be32_to_cpu(ioasa_data[i]),
5520 be32_to_cpu(ioasa_data[i+1]),
5521 be32_to_cpu(ioasa_data[i+2]),
5522 be32_to_cpu(ioasa_data[i+3]));
5527 * ipr_gen_sense - Generate SCSI sense data from an IOASA
5529 * @sense_buf: sense data buffer
5534 static void ipr_gen_sense(struct ipr_cmnd *ipr_cmd)
5537 u8 *sense_buf = ipr_cmd->scsi_cmd->sense_buffer;
5538 struct ipr_resource_entry *res = ipr_cmd->scsi_cmd->device->hostdata;
5539 struct ipr_ioasa *ioasa = &ipr_cmd->s.ioasa;
5540 u32 ioasc = be32_to_cpu(ioasa->hdr.ioasc);
5542 memset(sense_buf, 0, SCSI_SENSE_BUFFERSIZE);
5544 if (ioasc >= IPR_FIRST_DRIVER_IOASC)
5547 ipr_cmd->scsi_cmd->result = SAM_STAT_CHECK_CONDITION;
5549 if (ipr_is_vset_device(res) &&
5550 ioasc == IPR_IOASC_MED_DO_NOT_REALLOC &&
5551 ioasa->u.vset.failing_lba_hi != 0) {
5552 sense_buf[0] = 0x72;
5553 sense_buf[1] = IPR_IOASC_SENSE_KEY(ioasc);
5554 sense_buf[2] = IPR_IOASC_SENSE_CODE(ioasc);
5555 sense_buf[3] = IPR_IOASC_SENSE_QUAL(ioasc);
5559 sense_buf[9] = 0x0A;
5560 sense_buf[10] = 0x80;
5562 failing_lba = be32_to_cpu(ioasa->u.vset.failing_lba_hi);
5564 sense_buf[12] = (failing_lba & 0xff000000) >> 24;
5565 sense_buf[13] = (failing_lba & 0x00ff0000) >> 16;
5566 sense_buf[14] = (failing_lba & 0x0000ff00) >> 8;
5567 sense_buf[15] = failing_lba & 0x000000ff;
5569 failing_lba = be32_to_cpu(ioasa->u.vset.failing_lba_lo);
5571 sense_buf[16] = (failing_lba & 0xff000000) >> 24;
5572 sense_buf[17] = (failing_lba & 0x00ff0000) >> 16;
5573 sense_buf[18] = (failing_lba & 0x0000ff00) >> 8;
5574 sense_buf[19] = failing_lba & 0x000000ff;
5576 sense_buf[0] = 0x70;
5577 sense_buf[2] = IPR_IOASC_SENSE_KEY(ioasc);
5578 sense_buf[12] = IPR_IOASC_SENSE_CODE(ioasc);
5579 sense_buf[13] = IPR_IOASC_SENSE_QUAL(ioasc);
5581 /* Illegal request */
5582 if ((IPR_IOASC_SENSE_KEY(ioasc) == 0x05) &&
5583 (be32_to_cpu(ioasa->hdr.ioasc_specific) & IPR_FIELD_POINTER_VALID)) {
5584 sense_buf[7] = 10; /* additional length */
5586 /* IOARCB was in error */
5587 if (IPR_IOASC_SENSE_CODE(ioasc) == 0x24)
5588 sense_buf[15] = 0xC0;
5589 else /* Parameter data was invalid */
5590 sense_buf[15] = 0x80;
5593 ((IPR_FIELD_POINTER_MASK &
5594 be32_to_cpu(ioasa->hdr.ioasc_specific)) >> 8) & 0xff;
5596 (IPR_FIELD_POINTER_MASK &
5597 be32_to_cpu(ioasa->hdr.ioasc_specific)) & 0xff;
5599 if (ioasc == IPR_IOASC_MED_DO_NOT_REALLOC) {
5600 if (ipr_is_vset_device(res))
5601 failing_lba = be32_to_cpu(ioasa->u.vset.failing_lba_lo);
5603 failing_lba = be32_to_cpu(ioasa->u.dasd.failing_lba);
5605 sense_buf[0] |= 0x80; /* Or in the Valid bit */
5606 sense_buf[3] = (failing_lba & 0xff000000) >> 24;
5607 sense_buf[4] = (failing_lba & 0x00ff0000) >> 16;
5608 sense_buf[5] = (failing_lba & 0x0000ff00) >> 8;
5609 sense_buf[6] = failing_lba & 0x000000ff;
5612 sense_buf[7] = 6; /* additional length */
5618 * ipr_get_autosense - Copy autosense data to sense buffer
5619 * @ipr_cmd: ipr command struct
5621 * This function copies the autosense buffer to the buffer
5622 * in the scsi_cmd, if there is autosense available.
5625 * 1 if autosense was available / 0 if not
5627 static int ipr_get_autosense(struct ipr_cmnd *ipr_cmd)
5629 struct ipr_ioasa *ioasa = &ipr_cmd->s.ioasa;
5630 struct ipr_ioasa64 *ioasa64 = &ipr_cmd->s.ioasa64;
5632 if ((be32_to_cpu(ioasa->hdr.ioasc_specific) & IPR_AUTOSENSE_VALID) == 0)
5635 if (ipr_cmd->ioa_cfg->sis64)
5636 memcpy(ipr_cmd->scsi_cmd->sense_buffer, ioasa64->auto_sense.data,
5637 min_t(u16, be16_to_cpu(ioasa64->auto_sense.auto_sense_len),
5638 SCSI_SENSE_BUFFERSIZE));
5640 memcpy(ipr_cmd->scsi_cmd->sense_buffer, ioasa->auto_sense.data,
5641 min_t(u16, be16_to_cpu(ioasa->auto_sense.auto_sense_len),
5642 SCSI_SENSE_BUFFERSIZE));
5647 * ipr_erp_start - Process an error response for a SCSI op
5648 * @ioa_cfg: ioa config struct
5649 * @ipr_cmd: ipr command struct
5651 * This function determines whether or not to initiate ERP
5652 * on the affected device.
5657 static void ipr_erp_start(struct ipr_ioa_cfg *ioa_cfg,
5658 struct ipr_cmnd *ipr_cmd)
5660 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd;
5661 struct ipr_resource_entry *res = scsi_cmd->device->hostdata;
5662 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
5663 u32 masked_ioasc = ioasc & IPR_IOASC_IOASC_MASK;
5666 ipr_scsi_eh_done(ipr_cmd);
5670 if (!ipr_is_gscsi(res) && masked_ioasc != IPR_IOASC_HW_DEV_BUS_STATUS)
5671 ipr_gen_sense(ipr_cmd);
5673 ipr_dump_ioasa(ioa_cfg, ipr_cmd, res);
5675 switch (masked_ioasc) {
5676 case IPR_IOASC_ABORTED_CMD_TERM_BY_HOST:
5677 if (ipr_is_naca_model(res))
5678 scsi_cmd->result |= (DID_ABORT << 16);
5680 scsi_cmd->result |= (DID_IMM_RETRY << 16);
5682 case IPR_IOASC_IR_RESOURCE_HANDLE:
5683 case IPR_IOASC_IR_NO_CMDS_TO_2ND_IOA:
5684 scsi_cmd->result |= (DID_NO_CONNECT << 16);
5686 case IPR_IOASC_HW_SEL_TIMEOUT:
5687 scsi_cmd->result |= (DID_NO_CONNECT << 16);
5688 if (!ipr_is_naca_model(res))
5689 res->needs_sync_complete = 1;
5691 case IPR_IOASC_SYNC_REQUIRED:
5693 res->needs_sync_complete = 1;
5694 scsi_cmd->result |= (DID_IMM_RETRY << 16);
5696 case IPR_IOASC_MED_DO_NOT_REALLOC: /* prevent retries */
5697 case IPR_IOASA_IR_DUAL_IOA_DISABLED:
5698 scsi_cmd->result |= (DID_PASSTHROUGH << 16);
5700 case IPR_IOASC_BUS_WAS_RESET:
5701 case IPR_IOASC_BUS_WAS_RESET_BY_OTHER:
5703 * Report the bus reset and ask for a retry. The device
5704 * will give CC/UA the next command.
5706 if (!res->resetting_device)
5707 scsi_report_bus_reset(ioa_cfg->host, scsi_cmd->device->channel);
5708 scsi_cmd->result |= (DID_ERROR << 16);
5709 if (!ipr_is_naca_model(res))
5710 res->needs_sync_complete = 1;
5712 case IPR_IOASC_HW_DEV_BUS_STATUS:
5713 scsi_cmd->result |= IPR_IOASC_SENSE_STATUS(ioasc);
5714 if (IPR_IOASC_SENSE_STATUS(ioasc) == SAM_STAT_CHECK_CONDITION) {
5715 if (!ipr_get_autosense(ipr_cmd)) {
5716 if (!ipr_is_naca_model(res)) {
5717 ipr_erp_cancel_all(ipr_cmd);
5722 if (!ipr_is_naca_model(res))
5723 res->needs_sync_complete = 1;
5725 case IPR_IOASC_NR_INIT_CMD_REQUIRED:
5728 if (IPR_IOASC_SENSE_KEY(ioasc) > RECOVERED_ERROR)
5729 scsi_cmd->result |= (DID_ERROR << 16);
5730 if (!ipr_is_vset_device(res) && !ipr_is_naca_model(res))
5731 res->needs_sync_complete = 1;
5735 scsi_dma_unmap(ipr_cmd->scsi_cmd);
5736 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
5737 scsi_cmd->scsi_done(scsi_cmd);
5741 * ipr_scsi_done - mid-layer done function
5742 * @ipr_cmd: ipr command struct
5744 * This function is invoked by the interrupt handler for
5745 * ops generated by the SCSI mid-layer
5750 static void ipr_scsi_done(struct ipr_cmnd *ipr_cmd)
5752 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
5753 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd;
5754 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
5756 scsi_set_resid(scsi_cmd, be32_to_cpu(ipr_cmd->s.ioasa.hdr.residual_data_len));
5758 if (likely(IPR_IOASC_SENSE_KEY(ioasc) == 0)) {
5759 scsi_dma_unmap(ipr_cmd->scsi_cmd);
5760 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
5761 scsi_cmd->scsi_done(scsi_cmd);
5763 ipr_erp_start(ioa_cfg, ipr_cmd);
5767 * ipr_queuecommand - Queue a mid-layer request
5768 * @scsi_cmd: scsi command struct
5769 * @done: done function
5771 * This function queues a request generated by the mid-layer.
5775 * SCSI_MLQUEUE_DEVICE_BUSY if device is busy
5776 * SCSI_MLQUEUE_HOST_BUSY if host is busy
5778 static int ipr_queuecommand_lck(struct scsi_cmnd *scsi_cmd,
5779 void (*done) (struct scsi_cmnd *))
5781 struct ipr_ioa_cfg *ioa_cfg;
5782 struct ipr_resource_entry *res;
5783 struct ipr_ioarcb *ioarcb;
5784 struct ipr_cmnd *ipr_cmd;
5787 scsi_cmd->scsi_done = done;
5788 ioa_cfg = (struct ipr_ioa_cfg *)scsi_cmd->device->host->hostdata;
5789 res = scsi_cmd->device->hostdata;
5790 scsi_cmd->result = (DID_OK << 16);
5793 * We are currently blocking all devices due to a host reset
5794 * We have told the host to stop giving us new requests, but
5795 * ERP ops don't count. FIXME
5797 if (unlikely(!ioa_cfg->allow_cmds && !ioa_cfg->ioa_is_dead))
5798 return SCSI_MLQUEUE_HOST_BUSY;
5801 * FIXME - Create scsi_set_host_offline interface
5802 * and the ioa_is_dead check can be removed
5804 if (unlikely(ioa_cfg->ioa_is_dead || !res)) {
5805 memset(scsi_cmd->sense_buffer, 0, SCSI_SENSE_BUFFERSIZE);
5806 scsi_cmd->result = (DID_NO_CONNECT << 16);
5807 scsi_cmd->scsi_done(scsi_cmd);
5811 if (ipr_is_gata(res) && res->sata_port)
5812 return ata_sas_queuecmd(scsi_cmd, res->sata_port->ap);
5814 ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg);
5815 ioarcb = &ipr_cmd->ioarcb;
5816 list_add_tail(&ipr_cmd->queue, &ioa_cfg->pending_q);
5818 memcpy(ioarcb->cmd_pkt.cdb, scsi_cmd->cmnd, scsi_cmd->cmd_len);
5819 ipr_cmd->scsi_cmd = scsi_cmd;
5820 ioarcb->res_handle = res->res_handle;
5821 ipr_cmd->done = ipr_scsi_done;
5822 ipr_trc_hook(ipr_cmd, IPR_TRACE_START, IPR_GET_RES_PHYS_LOC(res));
5824 if (ipr_is_gscsi(res) || ipr_is_vset_device(res)) {
5825 if (scsi_cmd->underflow == 0)
5826 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_NO_ULEN_CHK;
5828 if (res->needs_sync_complete) {
5829 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_SYNC_COMPLETE;
5830 res->needs_sync_complete = 0;
5833 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_NO_LINK_DESC;
5834 if (ipr_is_gscsi(res))
5835 ioarcb->cmd_pkt.flags_lo |= IPR_FLAGS_LO_DELAY_AFTER_RST;
5836 ioarcb->cmd_pkt.flags_lo |= IPR_FLAGS_LO_ALIGNED_BFR;
5837 ioarcb->cmd_pkt.flags_lo |= ipr_get_task_attributes(scsi_cmd);
5840 if (scsi_cmd->cmnd[0] >= 0xC0 &&
5841 (!ipr_is_gscsi(res) || scsi_cmd->cmnd[0] == IPR_QUERY_RSRC_STATE))
5842 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_IOACMD;
5844 if (likely(rc == 0)) {
5846 rc = ipr_build_ioadl64(ioa_cfg, ipr_cmd);
5848 rc = ipr_build_ioadl(ioa_cfg, ipr_cmd);
5851 if (likely(rc == 0)) {
5853 ipr_send_command(ipr_cmd);
5855 list_move_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
5856 return SCSI_MLQUEUE_HOST_BUSY;
5862 static DEF_SCSI_QCMD(ipr_queuecommand)
5865 * ipr_ioctl - IOCTL handler
5866 * @sdev: scsi device struct
5871 * 0 on success / other on failure
5873 static int ipr_ioctl(struct scsi_device *sdev, int cmd, void __user *arg)
5875 struct ipr_resource_entry *res;
5877 res = (struct ipr_resource_entry *)sdev->hostdata;
5878 if (res && ipr_is_gata(res)) {
5879 if (cmd == HDIO_GET_IDENTITY)
5881 return ata_sas_scsi_ioctl(res->sata_port->ap, sdev, cmd, arg);
5888 * ipr_info - Get information about the card/driver
5889 * @scsi_host: scsi host struct
5892 * pointer to buffer with description string
5894 static const char * ipr_ioa_info(struct Scsi_Host *host)
5896 static char buffer[512];
5897 struct ipr_ioa_cfg *ioa_cfg;
5898 unsigned long lock_flags = 0;
5900 ioa_cfg = (struct ipr_ioa_cfg *) host->hostdata;
5902 spin_lock_irqsave(host->host_lock, lock_flags);
5903 sprintf(buffer, "IBM %X Storage Adapter", ioa_cfg->type);
5904 spin_unlock_irqrestore(host->host_lock, lock_flags);
5909 static struct scsi_host_template driver_template = {
5910 .module = THIS_MODULE,
5912 .info = ipr_ioa_info,
5914 .queuecommand = ipr_queuecommand,
5915 .eh_abort_handler = ipr_eh_abort,
5916 .eh_device_reset_handler = ipr_eh_dev_reset,
5917 .eh_host_reset_handler = ipr_eh_host_reset,
5918 .slave_alloc = ipr_slave_alloc,
5919 .slave_configure = ipr_slave_configure,
5920 .slave_destroy = ipr_slave_destroy,
5921 .target_alloc = ipr_target_alloc,
5922 .target_destroy = ipr_target_destroy,
5923 .change_queue_depth = ipr_change_queue_depth,
5924 .change_queue_type = ipr_change_queue_type,
5925 .bios_param = ipr_biosparam,
5926 .can_queue = IPR_MAX_COMMANDS,
5928 .sg_tablesize = IPR_MAX_SGLIST,
5929 .max_sectors = IPR_IOA_MAX_SECTORS,
5930 .cmd_per_lun = IPR_MAX_CMD_PER_LUN,
5931 .use_clustering = ENABLE_CLUSTERING,
5932 .shost_attrs = ipr_ioa_attrs,
5933 .sdev_attrs = ipr_dev_attrs,
5934 .proc_name = IPR_NAME
5938 * ipr_ata_phy_reset - libata phy_reset handler
5939 * @ap: ata port to reset
5942 static void ipr_ata_phy_reset(struct ata_port *ap)
5944 unsigned long flags;
5945 struct ipr_sata_port *sata_port = ap->private_data;
5946 struct ipr_resource_entry *res = sata_port->res;
5947 struct ipr_ioa_cfg *ioa_cfg = sata_port->ioa_cfg;
5951 spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
5952 while(ioa_cfg->in_reset_reload) {
5953 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
5954 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
5955 spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
5958 if (!ioa_cfg->allow_cmds)
5961 rc = ipr_device_reset(ioa_cfg, res);
5964 ap->link.device[0].class = ATA_DEV_NONE;
5968 ap->link.device[0].class = res->ata_class;
5969 if (ap->link.device[0].class == ATA_DEV_UNKNOWN)
5970 ap->link.device[0].class = ATA_DEV_NONE;
5973 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
5978 * ipr_ata_post_internal - Cleanup after an internal command
5979 * @qc: ATA queued command
5984 static void ipr_ata_post_internal(struct ata_queued_cmd *qc)
5986 struct ipr_sata_port *sata_port = qc->ap->private_data;
5987 struct ipr_ioa_cfg *ioa_cfg = sata_port->ioa_cfg;
5988 struct ipr_cmnd *ipr_cmd;
5989 unsigned long flags;
5991 spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
5992 while(ioa_cfg->in_reset_reload) {
5993 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
5994 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
5995 spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
5998 list_for_each_entry(ipr_cmd, &ioa_cfg->pending_q, queue) {
5999 if (ipr_cmd->qc == qc) {
6000 ipr_device_reset(ioa_cfg, sata_port->res);
6004 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
6008 * ipr_copy_sata_tf - Copy a SATA taskfile to an IOA data structure
6009 * @regs: destination
6010 * @tf: source ATA taskfile
6015 static void ipr_copy_sata_tf(struct ipr_ioarcb_ata_regs *regs,
6016 struct ata_taskfile *tf)
6018 regs->feature = tf->feature;
6019 regs->nsect = tf->nsect;
6020 regs->lbal = tf->lbal;
6021 regs->lbam = tf->lbam;
6022 regs->lbah = tf->lbah;
6023 regs->device = tf->device;
6024 regs->command = tf->command;
6025 regs->hob_feature = tf->hob_feature;
6026 regs->hob_nsect = tf->hob_nsect;
6027 regs->hob_lbal = tf->hob_lbal;
6028 regs->hob_lbam = tf->hob_lbam;
6029 regs->hob_lbah = tf->hob_lbah;
6030 regs->ctl = tf->ctl;
6034 * ipr_sata_done - done function for SATA commands
6035 * @ipr_cmd: ipr command struct
6037 * This function is invoked by the interrupt handler for
6038 * ops generated by the SCSI mid-layer to SATA devices
6043 static void ipr_sata_done(struct ipr_cmnd *ipr_cmd)
6045 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6046 struct ata_queued_cmd *qc = ipr_cmd->qc;
6047 struct ipr_sata_port *sata_port = qc->ap->private_data;
6048 struct ipr_resource_entry *res = sata_port->res;
6049 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
6051 if (ipr_cmd->ioa_cfg->sis64)
6052 memcpy(&sata_port->ioasa, &ipr_cmd->s.ioasa64.u.gata,
6053 sizeof(struct ipr_ioasa_gata));
6055 memcpy(&sata_port->ioasa, &ipr_cmd->s.ioasa.u.gata,
6056 sizeof(struct ipr_ioasa_gata));
6057 ipr_dump_ioasa(ioa_cfg, ipr_cmd, res);
6059 if (be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc_specific) & IPR_ATA_DEVICE_WAS_RESET)
6060 scsi_report_device_reset(ioa_cfg->host, res->bus, res->target);
6062 if (IPR_IOASC_SENSE_KEY(ioasc) > RECOVERED_ERROR)
6063 qc->err_mask |= __ac_err_mask(sata_port->ioasa.status);
6065 qc->err_mask |= ac_err_mask(sata_port->ioasa.status);
6066 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
6067 ata_qc_complete(qc);
6071 * ipr_build_ata_ioadl64 - Build an ATA scatter/gather list
6072 * @ipr_cmd: ipr command struct
6073 * @qc: ATA queued command
6076 static void ipr_build_ata_ioadl64(struct ipr_cmnd *ipr_cmd,
6077 struct ata_queued_cmd *qc)
6079 u32 ioadl_flags = 0;
6080 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
6081 struct ipr_ioadl64_desc *ioadl64 = ipr_cmd->i.ioadl64;
6082 struct ipr_ioadl64_desc *last_ioadl64 = NULL;
6083 int len = qc->nbytes;
6084 struct scatterlist *sg;
6086 dma_addr_t dma_addr = ipr_cmd->dma_addr;
6091 if (qc->dma_dir == DMA_TO_DEVICE) {
6092 ioadl_flags = IPR_IOADL_FLAGS_WRITE;
6093 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ;
6094 } else if (qc->dma_dir == DMA_FROM_DEVICE)
6095 ioadl_flags = IPR_IOADL_FLAGS_READ;
6097 ioarcb->data_transfer_length = cpu_to_be32(len);
6099 cpu_to_be32(sizeof(struct ipr_ioadl64_desc) * ipr_cmd->dma_use_sg);
6100 ioarcb->u.sis64_addr_data.data_ioadl_addr =
6101 cpu_to_be64(dma_addr + offsetof(struct ipr_cmnd, i.ata_ioadl));
6103 for_each_sg(qc->sg, sg, qc->n_elem, si) {
6104 ioadl64->flags = cpu_to_be32(ioadl_flags);
6105 ioadl64->data_len = cpu_to_be32(sg_dma_len(sg));
6106 ioadl64->address = cpu_to_be64(sg_dma_address(sg));
6108 last_ioadl64 = ioadl64;
6112 if (likely(last_ioadl64))
6113 last_ioadl64->flags |= cpu_to_be32(IPR_IOADL_FLAGS_LAST);
6117 * ipr_build_ata_ioadl - Build an ATA scatter/gather list
6118 * @ipr_cmd: ipr command struct
6119 * @qc: ATA queued command
6122 static void ipr_build_ata_ioadl(struct ipr_cmnd *ipr_cmd,
6123 struct ata_queued_cmd *qc)
6125 u32 ioadl_flags = 0;
6126 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
6127 struct ipr_ioadl_desc *ioadl = ipr_cmd->i.ioadl;
6128 struct ipr_ioadl_desc *last_ioadl = NULL;
6129 int len = qc->nbytes;
6130 struct scatterlist *sg;
6136 if (qc->dma_dir == DMA_TO_DEVICE) {
6137 ioadl_flags = IPR_IOADL_FLAGS_WRITE;
6138 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ;
6139 ioarcb->data_transfer_length = cpu_to_be32(len);
6141 cpu_to_be32(sizeof(struct ipr_ioadl_desc) * ipr_cmd->dma_use_sg);
6142 } else if (qc->dma_dir == DMA_FROM_DEVICE) {
6143 ioadl_flags = IPR_IOADL_FLAGS_READ;
6144 ioarcb->read_data_transfer_length = cpu_to_be32(len);
6145 ioarcb->read_ioadl_len =
6146 cpu_to_be32(sizeof(struct ipr_ioadl_desc) * ipr_cmd->dma_use_sg);
6149 for_each_sg(qc->sg, sg, qc->n_elem, si) {
6150 ioadl->flags_and_data_len = cpu_to_be32(ioadl_flags | sg_dma_len(sg));
6151 ioadl->address = cpu_to_be32(sg_dma_address(sg));
6157 if (likely(last_ioadl))
6158 last_ioadl->flags_and_data_len |= cpu_to_be32(IPR_IOADL_FLAGS_LAST);
6162 * ipr_qc_issue - Issue a SATA qc to a device
6163 * @qc: queued command
6168 static unsigned int ipr_qc_issue(struct ata_queued_cmd *qc)
6170 struct ata_port *ap = qc->ap;
6171 struct ipr_sata_port *sata_port = ap->private_data;
6172 struct ipr_resource_entry *res = sata_port->res;
6173 struct ipr_ioa_cfg *ioa_cfg = sata_port->ioa_cfg;
6174 struct ipr_cmnd *ipr_cmd;
6175 struct ipr_ioarcb *ioarcb;
6176 struct ipr_ioarcb_ata_regs *regs;
6178 if (unlikely(!ioa_cfg->allow_cmds || ioa_cfg->ioa_is_dead))
6179 return AC_ERR_SYSTEM;
6181 ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg);
6182 ioarcb = &ipr_cmd->ioarcb;
6184 if (ioa_cfg->sis64) {
6185 regs = &ipr_cmd->i.ata_ioadl.regs;
6186 ioarcb->add_cmd_parms_offset = cpu_to_be16(sizeof(*ioarcb));
6188 regs = &ioarcb->u.add_data.u.regs;
6190 memset(regs, 0, sizeof(*regs));
6191 ioarcb->add_cmd_parms_len = cpu_to_be16(sizeof(*regs));
6193 list_add_tail(&ipr_cmd->queue, &ioa_cfg->pending_q);
6195 ipr_cmd->done = ipr_sata_done;
6196 ipr_cmd->ioarcb.res_handle = res->res_handle;
6197 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_ATA_PASSTHRU;
6198 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_NO_LINK_DESC;
6199 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_NO_ULEN_CHK;
6200 ipr_cmd->dma_use_sg = qc->n_elem;
6203 ipr_build_ata_ioadl64(ipr_cmd, qc);
6205 ipr_build_ata_ioadl(ipr_cmd, qc);
6207 regs->flags |= IPR_ATA_FLAG_STATUS_ON_GOOD_COMPLETION;
6208 ipr_copy_sata_tf(regs, &qc->tf);
6209 memcpy(ioarcb->cmd_pkt.cdb, qc->cdb, IPR_MAX_CDB_LEN);
6210 ipr_trc_hook(ipr_cmd, IPR_TRACE_START, IPR_GET_RES_PHYS_LOC(res));
6212 switch (qc->tf.protocol) {
6213 case ATA_PROT_NODATA:
6218 regs->flags |= IPR_ATA_FLAG_XFER_TYPE_DMA;
6221 case ATAPI_PROT_PIO:
6222 case ATAPI_PROT_NODATA:
6223 regs->flags |= IPR_ATA_FLAG_PACKET_CMD;
6226 case ATAPI_PROT_DMA:
6227 regs->flags |= IPR_ATA_FLAG_PACKET_CMD;
6228 regs->flags |= IPR_ATA_FLAG_XFER_TYPE_DMA;
6233 return AC_ERR_INVALID;
6238 ipr_send_command(ipr_cmd);
6244 * ipr_qc_fill_rtf - Read result TF
6245 * @qc: ATA queued command
6250 static bool ipr_qc_fill_rtf(struct ata_queued_cmd *qc)
6252 struct ipr_sata_port *sata_port = qc->ap->private_data;
6253 struct ipr_ioasa_gata *g = &sata_port->ioasa;
6254 struct ata_taskfile *tf = &qc->result_tf;
6256 tf->feature = g->error;
6257 tf->nsect = g->nsect;
6261 tf->device = g->device;
6262 tf->command = g->status;
6263 tf->hob_nsect = g->hob_nsect;
6264 tf->hob_lbal = g->hob_lbal;
6265 tf->hob_lbam = g->hob_lbam;
6266 tf->hob_lbah = g->hob_lbah;
6267 tf->ctl = g->alt_status;
6272 static struct ata_port_operations ipr_sata_ops = {
6273 .phy_reset = ipr_ata_phy_reset,
6274 .hardreset = ipr_sata_reset,
6275 .post_internal_cmd = ipr_ata_post_internal,
6276 .qc_prep = ata_noop_qc_prep,
6277 .qc_issue = ipr_qc_issue,
6278 .qc_fill_rtf = ipr_qc_fill_rtf,
6279 .port_start = ata_sas_port_start,
6280 .port_stop = ata_sas_port_stop
6283 static struct ata_port_info sata_port_info = {
6284 .flags = ATA_FLAG_SATA | ATA_FLAG_PIO_DMA,
6285 .pio_mask = ATA_PIO4_ONLY,
6286 .mwdma_mask = ATA_MWDMA2,
6287 .udma_mask = ATA_UDMA6,
6288 .port_ops = &ipr_sata_ops
6291 #ifdef CONFIG_PPC_PSERIES
6292 static const u16 ipr_blocked_processors[] = {
6304 * ipr_invalid_adapter - Determine if this adapter is supported on this hardware
6305 * @ioa_cfg: ioa cfg struct
6307 * Adapters that use Gemstone revision < 3.1 do not work reliably on
6308 * certain pSeries hardware. This function determines if the given
6309 * adapter is in one of these confgurations or not.
6312 * 1 if adapter is not supported / 0 if adapter is supported
6314 static int ipr_invalid_adapter(struct ipr_ioa_cfg *ioa_cfg)
6318 if ((ioa_cfg->type == 0x5702) && (ioa_cfg->pdev->revision < 4)) {
6319 for (i = 0; i < ARRAY_SIZE(ipr_blocked_processors); i++){
6320 if (__is_processor(ipr_blocked_processors[i]))
6327 #define ipr_invalid_adapter(ioa_cfg) 0
6331 * ipr_ioa_bringdown_done - IOA bring down completion.
6332 * @ipr_cmd: ipr command struct
6334 * This function processes the completion of an adapter bring down.
6335 * It wakes any reset sleepers.
6340 static int ipr_ioa_bringdown_done(struct ipr_cmnd *ipr_cmd)
6342 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6345 ioa_cfg->in_reset_reload = 0;
6346 ioa_cfg->reset_retries = 0;
6347 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
6348 wake_up_all(&ioa_cfg->reset_wait_q);
6350 spin_unlock_irq(ioa_cfg->host->host_lock);
6351 scsi_unblock_requests(ioa_cfg->host);
6352 spin_lock_irq(ioa_cfg->host->host_lock);
6355 return IPR_RC_JOB_RETURN;
6359 * ipr_ioa_reset_done - IOA reset completion.
6360 * @ipr_cmd: ipr command struct
6362 * This function processes the completion of an adapter reset.
6363 * It schedules any necessary mid-layer add/removes and
6364 * wakes any reset sleepers.
6369 static int ipr_ioa_reset_done(struct ipr_cmnd *ipr_cmd)
6371 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6372 struct ipr_resource_entry *res;
6373 struct ipr_hostrcb *hostrcb, *temp;
6377 ioa_cfg->in_reset_reload = 0;
6378 ioa_cfg->allow_cmds = 1;
6379 ioa_cfg->reset_cmd = NULL;
6380 ioa_cfg->doorbell |= IPR_RUNTIME_RESET;
6382 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) {
6383 if (ioa_cfg->allow_ml_add_del && (res->add_to_ml || res->del_from_ml)) {
6388 schedule_work(&ioa_cfg->work_q);
6390 list_for_each_entry_safe(hostrcb, temp, &ioa_cfg->hostrcb_free_q, queue) {
6391 list_del(&hostrcb->queue);
6392 if (i++ < IPR_NUM_LOG_HCAMS)
6393 ipr_send_hcam(ioa_cfg, IPR_HCAM_CDB_OP_CODE_LOG_DATA, hostrcb);
6395 ipr_send_hcam(ioa_cfg, IPR_HCAM_CDB_OP_CODE_CONFIG_CHANGE, hostrcb);
6398 scsi_report_bus_reset(ioa_cfg->host, IPR_VSET_BUS);
6399 dev_info(&ioa_cfg->pdev->dev, "IOA initialized.\n");
6401 ioa_cfg->reset_retries = 0;
6402 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
6403 wake_up_all(&ioa_cfg->reset_wait_q);
6405 spin_unlock(ioa_cfg->host->host_lock);
6406 scsi_unblock_requests(ioa_cfg->host);
6407 spin_lock(ioa_cfg->host->host_lock);
6409 if (!ioa_cfg->allow_cmds)
6410 scsi_block_requests(ioa_cfg->host);
6413 return IPR_RC_JOB_RETURN;
6417 * ipr_set_sup_dev_dflt - Initialize a Set Supported Device buffer
6418 * @supported_dev: supported device struct
6419 * @vpids: vendor product id struct
6424 static void ipr_set_sup_dev_dflt(struct ipr_supported_device *supported_dev,
6425 struct ipr_std_inq_vpids *vpids)
6427 memset(supported_dev, 0, sizeof(struct ipr_supported_device));
6428 memcpy(&supported_dev->vpids, vpids, sizeof(struct ipr_std_inq_vpids));
6429 supported_dev->num_records = 1;
6430 supported_dev->data_length =
6431 cpu_to_be16(sizeof(struct ipr_supported_device));
6432 supported_dev->reserved = 0;
6436 * ipr_set_supported_devs - Send Set Supported Devices for a device
6437 * @ipr_cmd: ipr command struct
6439 * This function sends a Set Supported Devices to the adapter
6442 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
6444 static int ipr_set_supported_devs(struct ipr_cmnd *ipr_cmd)
6446 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6447 struct ipr_supported_device *supp_dev = &ioa_cfg->vpd_cbs->supp_dev;
6448 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
6449 struct ipr_resource_entry *res = ipr_cmd->u.res;
6451 ipr_cmd->job_step = ipr_ioa_reset_done;
6453 list_for_each_entry_continue(res, &ioa_cfg->used_res_q, queue) {
6454 if (!ipr_is_scsi_disk(res))
6457 ipr_cmd->u.res = res;
6458 ipr_set_sup_dev_dflt(supp_dev, &res->std_inq_data.vpids);
6460 ioarcb->res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE);
6461 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ;
6462 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_IOACMD;
6464 ioarcb->cmd_pkt.cdb[0] = IPR_SET_SUPPORTED_DEVICES;
6465 ioarcb->cmd_pkt.cdb[1] = IPR_SET_ALL_SUPPORTED_DEVICES;
6466 ioarcb->cmd_pkt.cdb[7] = (sizeof(struct ipr_supported_device) >> 8) & 0xff;
6467 ioarcb->cmd_pkt.cdb[8] = sizeof(struct ipr_supported_device) & 0xff;
6469 ipr_init_ioadl(ipr_cmd,
6470 ioa_cfg->vpd_cbs_dma +
6471 offsetof(struct ipr_misc_cbs, supp_dev),
6472 sizeof(struct ipr_supported_device),
6473 IPR_IOADL_FLAGS_WRITE_LAST);
6475 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout,
6476 IPR_SET_SUP_DEVICE_TIMEOUT);
6478 if (!ioa_cfg->sis64)
6479 ipr_cmd->job_step = ipr_set_supported_devs;
6480 return IPR_RC_JOB_RETURN;
6483 return IPR_RC_JOB_CONTINUE;
6487 * ipr_get_mode_page - Locate specified mode page
6488 * @mode_pages: mode page buffer
6489 * @page_code: page code to find
6490 * @len: minimum required length for mode page
6493 * pointer to mode page / NULL on failure
6495 static void *ipr_get_mode_page(struct ipr_mode_pages *mode_pages,
6496 u32 page_code, u32 len)
6498 struct ipr_mode_page_hdr *mode_hdr;
6502 if (!mode_pages || (mode_pages->hdr.length == 0))
6505 length = (mode_pages->hdr.length + 1) - 4 - mode_pages->hdr.block_desc_len;
6506 mode_hdr = (struct ipr_mode_page_hdr *)
6507 (mode_pages->data + mode_pages->hdr.block_desc_len);
6510 if (IPR_GET_MODE_PAGE_CODE(mode_hdr) == page_code) {
6511 if (mode_hdr->page_length >= (len - sizeof(struct ipr_mode_page_hdr)))
6515 page_length = (sizeof(struct ipr_mode_page_hdr) +
6516 mode_hdr->page_length);
6517 length -= page_length;
6518 mode_hdr = (struct ipr_mode_page_hdr *)
6519 ((unsigned long)mode_hdr + page_length);
6526 * ipr_check_term_power - Check for term power errors
6527 * @ioa_cfg: ioa config struct
6528 * @mode_pages: IOAFP mode pages buffer
6530 * Check the IOAFP's mode page 28 for term power errors
6535 static void ipr_check_term_power(struct ipr_ioa_cfg *ioa_cfg,
6536 struct ipr_mode_pages *mode_pages)
6540 struct ipr_dev_bus_entry *bus;
6541 struct ipr_mode_page28 *mode_page;
6543 mode_page = ipr_get_mode_page(mode_pages, 0x28,
6544 sizeof(struct ipr_mode_page28));
6546 entry_length = mode_page->entry_length;
6548 bus = mode_page->bus;
6550 for (i = 0; i < mode_page->num_entries; i++) {
6551 if (bus->flags & IPR_SCSI_ATTR_NO_TERM_PWR) {
6552 dev_err(&ioa_cfg->pdev->dev,
6553 "Term power is absent on scsi bus %d\n",
6557 bus = (struct ipr_dev_bus_entry *)((char *)bus + entry_length);
6562 * ipr_scsi_bus_speed_limit - Limit the SCSI speed based on SES table
6563 * @ioa_cfg: ioa config struct
6565 * Looks through the config table checking for SES devices. If
6566 * the SES device is in the SES table indicating a maximum SCSI
6567 * bus speed, the speed is limited for the bus.
6572 static void ipr_scsi_bus_speed_limit(struct ipr_ioa_cfg *ioa_cfg)
6577 for (i = 0; i < IPR_MAX_NUM_BUSES; i++) {
6578 max_xfer_rate = ipr_get_max_scsi_speed(ioa_cfg, i,
6579 ioa_cfg->bus_attr[i].bus_width);
6581 if (max_xfer_rate < ioa_cfg->bus_attr[i].max_xfer_rate)
6582 ioa_cfg->bus_attr[i].max_xfer_rate = max_xfer_rate;
6587 * ipr_modify_ioafp_mode_page_28 - Modify IOAFP Mode Page 28
6588 * @ioa_cfg: ioa config struct
6589 * @mode_pages: mode page 28 buffer
6591 * Updates mode page 28 based on driver configuration
6596 static void ipr_modify_ioafp_mode_page_28(struct ipr_ioa_cfg *ioa_cfg,
6597 struct ipr_mode_pages *mode_pages)
6599 int i, entry_length;
6600 struct ipr_dev_bus_entry *bus;
6601 struct ipr_bus_attributes *bus_attr;
6602 struct ipr_mode_page28 *mode_page;
6604 mode_page = ipr_get_mode_page(mode_pages, 0x28,
6605 sizeof(struct ipr_mode_page28));
6607 entry_length = mode_page->entry_length;
6609 /* Loop for each device bus entry */
6610 for (i = 0, bus = mode_page->bus;
6611 i < mode_page->num_entries;
6612 i++, bus = (struct ipr_dev_bus_entry *)((u8 *)bus + entry_length)) {
6613 if (bus->res_addr.bus > IPR_MAX_NUM_BUSES) {
6614 dev_err(&ioa_cfg->pdev->dev,
6615 "Invalid resource address reported: 0x%08X\n",
6616 IPR_GET_PHYS_LOC(bus->res_addr));
6620 bus_attr = &ioa_cfg->bus_attr[i];
6621 bus->extended_reset_delay = IPR_EXTENDED_RESET_DELAY;
6622 bus->bus_width = bus_attr->bus_width;
6623 bus->max_xfer_rate = cpu_to_be32(bus_attr->max_xfer_rate);
6624 bus->flags &= ~IPR_SCSI_ATTR_QAS_MASK;
6625 if (bus_attr->qas_enabled)
6626 bus->flags |= IPR_SCSI_ATTR_ENABLE_QAS;
6628 bus->flags |= IPR_SCSI_ATTR_DISABLE_QAS;
6633 * ipr_build_mode_select - Build a mode select command
6634 * @ipr_cmd: ipr command struct
6635 * @res_handle: resource handle to send command to
6636 * @parm: Byte 2 of Mode Sense command
6637 * @dma_addr: DMA buffer address
6638 * @xfer_len: data transfer length
6643 static void ipr_build_mode_select(struct ipr_cmnd *ipr_cmd,
6644 __be32 res_handle, u8 parm,
6645 dma_addr_t dma_addr, u8 xfer_len)
6647 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
6649 ioarcb->res_handle = res_handle;
6650 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_SCSICDB;
6651 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ;
6652 ioarcb->cmd_pkt.cdb[0] = MODE_SELECT;
6653 ioarcb->cmd_pkt.cdb[1] = parm;
6654 ioarcb->cmd_pkt.cdb[4] = xfer_len;
6656 ipr_init_ioadl(ipr_cmd, dma_addr, xfer_len, IPR_IOADL_FLAGS_WRITE_LAST);
6660 * ipr_ioafp_mode_select_page28 - Issue Mode Select Page 28 to IOA
6661 * @ipr_cmd: ipr command struct
6663 * This function sets up the SCSI bus attributes and sends
6664 * a Mode Select for Page 28 to activate them.
6669 static int ipr_ioafp_mode_select_page28(struct ipr_cmnd *ipr_cmd)
6671 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6672 struct ipr_mode_pages *mode_pages = &ioa_cfg->vpd_cbs->mode_pages;
6676 ipr_scsi_bus_speed_limit(ioa_cfg);
6677 ipr_check_term_power(ioa_cfg, mode_pages);
6678 ipr_modify_ioafp_mode_page_28(ioa_cfg, mode_pages);
6679 length = mode_pages->hdr.length + 1;
6680 mode_pages->hdr.length = 0;
6682 ipr_build_mode_select(ipr_cmd, cpu_to_be32(IPR_IOA_RES_HANDLE), 0x11,
6683 ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, mode_pages),
6686 ipr_cmd->job_step = ipr_set_supported_devs;
6687 ipr_cmd->u.res = list_entry(ioa_cfg->used_res_q.next,
6688 struct ipr_resource_entry, queue);
6689 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT);
6692 return IPR_RC_JOB_RETURN;
6696 * ipr_build_mode_sense - Builds a mode sense command
6697 * @ipr_cmd: ipr command struct
6698 * @res: resource entry struct
6699 * @parm: Byte 2 of mode sense command
6700 * @dma_addr: DMA address of mode sense buffer
6701 * @xfer_len: Size of DMA buffer
6706 static void ipr_build_mode_sense(struct ipr_cmnd *ipr_cmd,
6708 u8 parm, dma_addr_t dma_addr, u8 xfer_len)
6710 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
6712 ioarcb->res_handle = res_handle;
6713 ioarcb->cmd_pkt.cdb[0] = MODE_SENSE;
6714 ioarcb->cmd_pkt.cdb[2] = parm;
6715 ioarcb->cmd_pkt.cdb[4] = xfer_len;
6716 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_SCSICDB;
6718 ipr_init_ioadl(ipr_cmd, dma_addr, xfer_len, IPR_IOADL_FLAGS_READ_LAST);
6722 * ipr_reset_cmd_failed - Handle failure of IOA reset command
6723 * @ipr_cmd: ipr command struct
6725 * This function handles the failure of an IOA bringup command.
6730 static int ipr_reset_cmd_failed(struct ipr_cmnd *ipr_cmd)
6732 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6733 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
6735 dev_err(&ioa_cfg->pdev->dev,
6736 "0x%02X failed with IOASC: 0x%08X\n",
6737 ipr_cmd->ioarcb.cmd_pkt.cdb[0], ioasc);
6739 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
6740 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
6741 return IPR_RC_JOB_RETURN;
6745 * ipr_reset_mode_sense_failed - Handle failure of IOAFP mode sense
6746 * @ipr_cmd: ipr command struct
6748 * This function handles the failure of a Mode Sense to the IOAFP.
6749 * Some adapters do not handle all mode pages.
6752 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
6754 static int ipr_reset_mode_sense_failed(struct ipr_cmnd *ipr_cmd)
6756 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6757 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
6759 if (ioasc == IPR_IOASC_IR_INVALID_REQ_TYPE_OR_PKT) {
6760 ipr_cmd->job_step = ipr_set_supported_devs;
6761 ipr_cmd->u.res = list_entry(ioa_cfg->used_res_q.next,
6762 struct ipr_resource_entry, queue);
6763 return IPR_RC_JOB_CONTINUE;
6766 return ipr_reset_cmd_failed(ipr_cmd);
6770 * ipr_ioafp_mode_sense_page28 - Issue Mode Sense Page 28 to IOA
6771 * @ipr_cmd: ipr command struct
6773 * This function send a Page 28 mode sense to the IOA to
6774 * retrieve SCSI bus attributes.
6779 static int ipr_ioafp_mode_sense_page28(struct ipr_cmnd *ipr_cmd)
6781 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6784 ipr_build_mode_sense(ipr_cmd, cpu_to_be32(IPR_IOA_RES_HANDLE),
6785 0x28, ioa_cfg->vpd_cbs_dma +
6786 offsetof(struct ipr_misc_cbs, mode_pages),
6787 sizeof(struct ipr_mode_pages));
6789 ipr_cmd->job_step = ipr_ioafp_mode_select_page28;
6790 ipr_cmd->job_step_failed = ipr_reset_mode_sense_failed;
6792 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT);
6795 return IPR_RC_JOB_RETURN;
6799 * ipr_ioafp_mode_select_page24 - Issue Mode Select to IOA
6800 * @ipr_cmd: ipr command struct
6802 * This function enables dual IOA RAID support if possible.
6807 static int ipr_ioafp_mode_select_page24(struct ipr_cmnd *ipr_cmd)
6809 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6810 struct ipr_mode_pages *mode_pages = &ioa_cfg->vpd_cbs->mode_pages;
6811 struct ipr_mode_page24 *mode_page;
6815 mode_page = ipr_get_mode_page(mode_pages, 0x24,
6816 sizeof(struct ipr_mode_page24));
6819 mode_page->flags |= IPR_ENABLE_DUAL_IOA_AF;
6821 length = mode_pages->hdr.length + 1;
6822 mode_pages->hdr.length = 0;
6824 ipr_build_mode_select(ipr_cmd, cpu_to_be32(IPR_IOA_RES_HANDLE), 0x11,
6825 ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, mode_pages),
6828 ipr_cmd->job_step = ipr_ioafp_mode_sense_page28;
6829 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT);
6832 return IPR_RC_JOB_RETURN;
6836 * ipr_reset_mode_sense_page24_failed - Handle failure of IOAFP mode sense
6837 * @ipr_cmd: ipr command struct
6839 * This function handles the failure of a Mode Sense to the IOAFP.
6840 * Some adapters do not handle all mode pages.
6843 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
6845 static int ipr_reset_mode_sense_page24_failed(struct ipr_cmnd *ipr_cmd)
6847 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
6849 if (ioasc == IPR_IOASC_IR_INVALID_REQ_TYPE_OR_PKT) {
6850 ipr_cmd->job_step = ipr_ioafp_mode_sense_page28;
6851 return IPR_RC_JOB_CONTINUE;
6854 return ipr_reset_cmd_failed(ipr_cmd);
6858 * ipr_ioafp_mode_sense_page24 - Issue Page 24 Mode Sense to IOA
6859 * @ipr_cmd: ipr command struct
6861 * This function send a mode sense to the IOA to retrieve
6862 * the IOA Advanced Function Control mode page.
6867 static int ipr_ioafp_mode_sense_page24(struct ipr_cmnd *ipr_cmd)
6869 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6872 ipr_build_mode_sense(ipr_cmd, cpu_to_be32(IPR_IOA_RES_HANDLE),
6873 0x24, ioa_cfg->vpd_cbs_dma +
6874 offsetof(struct ipr_misc_cbs, mode_pages),
6875 sizeof(struct ipr_mode_pages));
6877 ipr_cmd->job_step = ipr_ioafp_mode_select_page24;
6878 ipr_cmd->job_step_failed = ipr_reset_mode_sense_page24_failed;
6880 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT);
6883 return IPR_RC_JOB_RETURN;
6887 * ipr_init_res_table - Initialize the resource table
6888 * @ipr_cmd: ipr command struct
6890 * This function looks through the existing resource table, comparing
6891 * it with the config table. This function will take care of old/new
6892 * devices and schedule adding/removing them from the mid-layer
6896 * IPR_RC_JOB_CONTINUE
6898 static int ipr_init_res_table(struct ipr_cmnd *ipr_cmd)
6900 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6901 struct ipr_resource_entry *res, *temp;
6902 struct ipr_config_table_entry_wrapper cfgtew;
6903 int entries, found, flag, i;
6908 flag = ioa_cfg->u.cfg_table64->hdr64.flags;
6910 flag = ioa_cfg->u.cfg_table->hdr.flags;
6912 if (flag & IPR_UCODE_DOWNLOAD_REQ)
6913 dev_err(&ioa_cfg->pdev->dev, "Microcode download required\n");
6915 list_for_each_entry_safe(res, temp, &ioa_cfg->used_res_q, queue)
6916 list_move_tail(&res->queue, &old_res);
6919 entries = be16_to_cpu(ioa_cfg->u.cfg_table64->hdr64.num_entries);
6921 entries = ioa_cfg->u.cfg_table->hdr.num_entries;
6923 for (i = 0; i < entries; i++) {
6925 cfgtew.u.cfgte64 = &ioa_cfg->u.cfg_table64->dev[i];
6927 cfgtew.u.cfgte = &ioa_cfg->u.cfg_table->dev[i];
6930 list_for_each_entry_safe(res, temp, &old_res, queue) {
6931 if (ipr_is_same_device(res, &cfgtew)) {
6932 list_move_tail(&res->queue, &ioa_cfg->used_res_q);
6939 if (list_empty(&ioa_cfg->free_res_q)) {
6940 dev_err(&ioa_cfg->pdev->dev, "Too many devices attached\n");
6945 res = list_entry(ioa_cfg->free_res_q.next,
6946 struct ipr_resource_entry, queue);
6947 list_move_tail(&res->queue, &ioa_cfg->used_res_q);
6948 ipr_init_res_entry(res, &cfgtew);
6950 } else if (res->sdev && (ipr_is_vset_device(res) || ipr_is_scsi_disk(res)))
6951 res->sdev->allow_restart = 1;
6954 ipr_update_res_entry(res, &cfgtew);
6957 list_for_each_entry_safe(res, temp, &old_res, queue) {
6959 res->del_from_ml = 1;
6960 res->res_handle = IPR_INVALID_RES_HANDLE;
6961 list_move_tail(&res->queue, &ioa_cfg->used_res_q);
6965 list_for_each_entry_safe(res, temp, &old_res, queue) {
6966 ipr_clear_res_target(res);
6967 list_move_tail(&res->queue, &ioa_cfg->free_res_q);
6970 if (ioa_cfg->dual_raid && ipr_dual_ioa_raid)
6971 ipr_cmd->job_step = ipr_ioafp_mode_sense_page24;
6973 ipr_cmd->job_step = ipr_ioafp_mode_sense_page28;
6976 return IPR_RC_JOB_CONTINUE;
6980 * ipr_ioafp_query_ioa_cfg - Send a Query IOA Config to the adapter.
6981 * @ipr_cmd: ipr command struct
6983 * This function sends a Query IOA Configuration command
6984 * to the adapter to retrieve the IOA configuration table.
6989 static int ipr_ioafp_query_ioa_cfg(struct ipr_cmnd *ipr_cmd)
6991 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6992 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
6993 struct ipr_inquiry_page3 *ucode_vpd = &ioa_cfg->vpd_cbs->page3_data;
6994 struct ipr_inquiry_cap *cap = &ioa_cfg->vpd_cbs->cap;
6997 if (cap->cap & IPR_CAP_DUAL_IOA_RAID)
6998 ioa_cfg->dual_raid = 1;
6999 dev_info(&ioa_cfg->pdev->dev, "Adapter firmware version: %02X%02X%02X%02X\n",
7000 ucode_vpd->major_release, ucode_vpd->card_type,
7001 ucode_vpd->minor_release[0], ucode_vpd->minor_release[1]);
7002 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_IOACMD;
7003 ioarcb->res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE);
7005 ioarcb->cmd_pkt.cdb[0] = IPR_QUERY_IOA_CONFIG;
7006 ioarcb->cmd_pkt.cdb[6] = (ioa_cfg->cfg_table_size >> 16) & 0xff;
7007 ioarcb->cmd_pkt.cdb[7] = (ioa_cfg->cfg_table_size >> 8) & 0xff;
7008 ioarcb->cmd_pkt.cdb[8] = ioa_cfg->cfg_table_size & 0xff;
7010 ipr_init_ioadl(ipr_cmd, ioa_cfg->cfg_table_dma, ioa_cfg->cfg_table_size,
7011 IPR_IOADL_FLAGS_READ_LAST);
7013 ipr_cmd->job_step = ipr_init_res_table;
7015 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT);
7018 return IPR_RC_JOB_RETURN;
7022 * ipr_ioafp_inquiry - Send an Inquiry to the adapter.
7023 * @ipr_cmd: ipr command struct
7025 * This utility function sends an inquiry to the adapter.
7030 static void ipr_ioafp_inquiry(struct ipr_cmnd *ipr_cmd, u8 flags, u8 page,
7031 dma_addr_t dma_addr, u8 xfer_len)
7033 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
7036 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_SCSICDB;
7037 ioarcb->res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE);
7039 ioarcb->cmd_pkt.cdb[0] = INQUIRY;
7040 ioarcb->cmd_pkt.cdb[1] = flags;
7041 ioarcb->cmd_pkt.cdb[2] = page;
7042 ioarcb->cmd_pkt.cdb[4] = xfer_len;
7044 ipr_init_ioadl(ipr_cmd, dma_addr, xfer_len, IPR_IOADL_FLAGS_READ_LAST);
7046 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT);
7051 * ipr_inquiry_page_supported - Is the given inquiry page supported
7052 * @page0: inquiry page 0 buffer
7055 * This function determines if the specified inquiry page is supported.
7058 * 1 if page is supported / 0 if not
7060 static int ipr_inquiry_page_supported(struct ipr_inquiry_page0 *page0, u8 page)
7064 for (i = 0; i < min_t(u8, page0->len, IPR_INQUIRY_PAGE0_ENTRIES); i++)
7065 if (page0->page[i] == page)
7072 * ipr_ioafp_cap_inquiry - Send a Page 0xD0 Inquiry to the adapter.
7073 * @ipr_cmd: ipr command struct
7075 * This function sends a Page 0xD0 inquiry to the adapter
7076 * to retrieve adapter capabilities.
7079 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
7081 static int ipr_ioafp_cap_inquiry(struct ipr_cmnd *ipr_cmd)
7083 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7084 struct ipr_inquiry_page0 *page0 = &ioa_cfg->vpd_cbs->page0_data;
7085 struct ipr_inquiry_cap *cap = &ioa_cfg->vpd_cbs->cap;
7088 ipr_cmd->job_step = ipr_ioafp_query_ioa_cfg;
7089 memset(cap, 0, sizeof(*cap));
7091 if (ipr_inquiry_page_supported(page0, 0xD0)) {
7092 ipr_ioafp_inquiry(ipr_cmd, 1, 0xD0,
7093 ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, cap),
7094 sizeof(struct ipr_inquiry_cap));
7095 return IPR_RC_JOB_RETURN;
7099 return IPR_RC_JOB_CONTINUE;
7103 * ipr_ioafp_page3_inquiry - Send a Page 3 Inquiry to the adapter.
7104 * @ipr_cmd: ipr command struct
7106 * This function sends a Page 3 inquiry to the adapter
7107 * to retrieve software VPD information.
7110 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
7112 static int ipr_ioafp_page3_inquiry(struct ipr_cmnd *ipr_cmd)
7114 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7118 ipr_cmd->job_step = ipr_ioafp_cap_inquiry;
7120 ipr_ioafp_inquiry(ipr_cmd, 1, 3,
7121 ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, page3_data),
7122 sizeof(struct ipr_inquiry_page3));
7125 return IPR_RC_JOB_RETURN;
7129 * ipr_ioafp_page0_inquiry - Send a Page 0 Inquiry to the adapter.
7130 * @ipr_cmd: ipr command struct
7132 * This function sends a Page 0 inquiry to the adapter
7133 * to retrieve supported inquiry pages.
7136 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
7138 static int ipr_ioafp_page0_inquiry(struct ipr_cmnd *ipr_cmd)
7140 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7145 /* Grab the type out of the VPD and store it away */
7146 memcpy(type, ioa_cfg->vpd_cbs->ioa_vpd.std_inq_data.vpids.product_id, 4);
7148 ioa_cfg->type = simple_strtoul((char *)type, NULL, 16);
7150 ipr_cmd->job_step = ipr_ioafp_page3_inquiry;
7152 ipr_ioafp_inquiry(ipr_cmd, 1, 0,
7153 ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, page0_data),
7154 sizeof(struct ipr_inquiry_page0));
7157 return IPR_RC_JOB_RETURN;
7161 * ipr_ioafp_std_inquiry - Send a Standard Inquiry to the adapter.
7162 * @ipr_cmd: ipr command struct
7164 * This function sends a standard inquiry to the adapter.
7169 static int ipr_ioafp_std_inquiry(struct ipr_cmnd *ipr_cmd)
7171 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7174 ipr_cmd->job_step = ipr_ioafp_page0_inquiry;
7176 ipr_ioafp_inquiry(ipr_cmd, 0, 0,
7177 ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, ioa_vpd),
7178 sizeof(struct ipr_ioa_vpd));
7181 return IPR_RC_JOB_RETURN;
7185 * ipr_ioafp_identify_hrrq - Send Identify Host RRQ.
7186 * @ipr_cmd: ipr command struct
7188 * This function send an Identify Host Request Response Queue
7189 * command to establish the HRRQ with the adapter.
7194 static int ipr_ioafp_identify_hrrq(struct ipr_cmnd *ipr_cmd)
7196 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7197 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
7200 dev_info(&ioa_cfg->pdev->dev, "Starting IOA initialization sequence.\n");
7202 ioarcb->cmd_pkt.cdb[0] = IPR_ID_HOST_RR_Q;
7203 ioarcb->res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE);
7205 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_IOACMD;
7207 ioarcb->cmd_pkt.cdb[1] = 0x1;
7208 ioarcb->cmd_pkt.cdb[2] =
7209 ((u64) ioa_cfg->host_rrq_dma >> 24) & 0xff;
7210 ioarcb->cmd_pkt.cdb[3] =
7211 ((u64) ioa_cfg->host_rrq_dma >> 16) & 0xff;
7212 ioarcb->cmd_pkt.cdb[4] =
7213 ((u64) ioa_cfg->host_rrq_dma >> 8) & 0xff;
7214 ioarcb->cmd_pkt.cdb[5] =
7215 ((u64) ioa_cfg->host_rrq_dma) & 0xff;
7216 ioarcb->cmd_pkt.cdb[7] =
7217 ((sizeof(u32) * IPR_NUM_CMD_BLKS) >> 8) & 0xff;
7218 ioarcb->cmd_pkt.cdb[8] =
7219 (sizeof(u32) * IPR_NUM_CMD_BLKS) & 0xff;
7221 if (ioa_cfg->sis64) {
7222 ioarcb->cmd_pkt.cdb[10] =
7223 ((u64) ioa_cfg->host_rrq_dma >> 56) & 0xff;
7224 ioarcb->cmd_pkt.cdb[11] =
7225 ((u64) ioa_cfg->host_rrq_dma >> 48) & 0xff;
7226 ioarcb->cmd_pkt.cdb[12] =
7227 ((u64) ioa_cfg->host_rrq_dma >> 40) & 0xff;
7228 ioarcb->cmd_pkt.cdb[13] =
7229 ((u64) ioa_cfg->host_rrq_dma >> 32) & 0xff;
7232 ipr_cmd->job_step = ipr_ioafp_std_inquiry;
7234 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT);
7237 return IPR_RC_JOB_RETURN;
7241 * ipr_reset_timer_done - Adapter reset timer function
7242 * @ipr_cmd: ipr command struct
7244 * Description: This function is used in adapter reset processing
7245 * for timing events. If the reset_cmd pointer in the IOA
7246 * config struct is not this adapter's we are doing nested
7247 * resets and fail_all_ops will take care of freeing the
7253 static void ipr_reset_timer_done(struct ipr_cmnd *ipr_cmd)
7255 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7256 unsigned long lock_flags = 0;
7258 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
7260 if (ioa_cfg->reset_cmd == ipr_cmd) {
7261 list_del(&ipr_cmd->queue);
7262 ipr_cmd->done(ipr_cmd);
7265 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
7269 * ipr_reset_start_timer - Start a timer for adapter reset job
7270 * @ipr_cmd: ipr command struct
7271 * @timeout: timeout value
7273 * Description: This function is used in adapter reset processing
7274 * for timing events. If the reset_cmd pointer in the IOA
7275 * config struct is not this adapter's we are doing nested
7276 * resets and fail_all_ops will take care of freeing the
7282 static void ipr_reset_start_timer(struct ipr_cmnd *ipr_cmd,
7283 unsigned long timeout)
7285 list_add_tail(&ipr_cmd->queue, &ipr_cmd->ioa_cfg->pending_q);
7286 ipr_cmd->done = ipr_reset_ioa_job;
7288 ipr_cmd->timer.data = (unsigned long) ipr_cmd;
7289 ipr_cmd->timer.expires = jiffies + timeout;
7290 ipr_cmd->timer.function = (void (*)(unsigned long))ipr_reset_timer_done;
7291 add_timer(&ipr_cmd->timer);
7295 * ipr_init_ioa_mem - Initialize ioa_cfg control block
7296 * @ioa_cfg: ioa cfg struct
7301 static void ipr_init_ioa_mem(struct ipr_ioa_cfg *ioa_cfg)
7303 memset(ioa_cfg->host_rrq, 0, sizeof(u32) * IPR_NUM_CMD_BLKS);
7305 /* Initialize Host RRQ pointers */
7306 ioa_cfg->hrrq_start = ioa_cfg->host_rrq;
7307 ioa_cfg->hrrq_end = &ioa_cfg->host_rrq[IPR_NUM_CMD_BLKS - 1];
7308 ioa_cfg->hrrq_curr = ioa_cfg->hrrq_start;
7309 ioa_cfg->toggle_bit = 1;
7311 /* Zero out config table */
7312 memset(ioa_cfg->u.cfg_table, 0, ioa_cfg->cfg_table_size);
7316 * ipr_reset_next_stage - Process IPL stage change based on feedback register.
7317 * @ipr_cmd: ipr command struct
7320 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
7322 static int ipr_reset_next_stage(struct ipr_cmnd *ipr_cmd)
7324 unsigned long stage, stage_time;
7326 volatile u32 int_reg;
7327 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7330 feedback = readl(ioa_cfg->regs.init_feedback_reg);
7331 stage = feedback & IPR_IPL_INIT_STAGE_MASK;
7332 stage_time = feedback & IPR_IPL_INIT_STAGE_TIME_MASK;
7334 ipr_dbg("IPL stage = 0x%lx, IPL stage time = %ld\n", stage, stage_time);
7336 /* sanity check the stage_time value */
7337 if (stage_time == 0)
7338 stage_time = IPR_IPL_INIT_DEFAULT_STAGE_TIME;
7339 else if (stage_time < IPR_IPL_INIT_MIN_STAGE_TIME)
7340 stage_time = IPR_IPL_INIT_MIN_STAGE_TIME;
7341 else if (stage_time > IPR_LONG_OPERATIONAL_TIMEOUT)
7342 stage_time = IPR_LONG_OPERATIONAL_TIMEOUT;
7344 if (stage == IPR_IPL_INIT_STAGE_UNKNOWN) {
7345 writel(IPR_PCII_IPL_STAGE_CHANGE, ioa_cfg->regs.set_interrupt_mask_reg);
7346 int_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg);
7347 stage_time = ioa_cfg->transop_timeout;
7348 ipr_cmd->job_step = ipr_ioafp_identify_hrrq;
7349 } else if (stage == IPR_IPL_INIT_STAGE_TRANSOP) {
7350 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg32);
7351 if (int_reg & IPR_PCII_IOA_TRANS_TO_OPER) {
7352 ipr_cmd->job_step = ipr_ioafp_identify_hrrq;
7353 maskval = IPR_PCII_IPL_STAGE_CHANGE;
7354 maskval = (maskval << 32) | IPR_PCII_IOA_TRANS_TO_OPER;
7355 writeq(maskval, ioa_cfg->regs.set_interrupt_mask_reg);
7356 int_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg);
7357 return IPR_RC_JOB_CONTINUE;
7361 ipr_cmd->timer.data = (unsigned long) ipr_cmd;
7362 ipr_cmd->timer.expires = jiffies + stage_time * HZ;
7363 ipr_cmd->timer.function = (void (*)(unsigned long))ipr_oper_timeout;
7364 ipr_cmd->done = ipr_reset_ioa_job;
7365 add_timer(&ipr_cmd->timer);
7366 list_add_tail(&ipr_cmd->queue, &ioa_cfg->pending_q);
7368 return IPR_RC_JOB_RETURN;
7372 * ipr_reset_enable_ioa - Enable the IOA following a reset.
7373 * @ipr_cmd: ipr command struct
7375 * This function reinitializes some control blocks and
7376 * enables destructive diagnostics on the adapter.
7381 static int ipr_reset_enable_ioa(struct ipr_cmnd *ipr_cmd)
7383 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7384 volatile u32 int_reg;
7385 volatile u64 maskval;
7388 ipr_cmd->job_step = ipr_ioafp_identify_hrrq;
7389 ipr_init_ioa_mem(ioa_cfg);
7391 ioa_cfg->allow_interrupts = 1;
7392 if (ioa_cfg->sis64) {
7393 /* Set the adapter to the correct endian mode. */
7394 writel(IPR_ENDIAN_SWAP_KEY, ioa_cfg->regs.endian_swap_reg);
7395 int_reg = readl(ioa_cfg->regs.endian_swap_reg);
7398 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg32);
7400 if (int_reg & IPR_PCII_IOA_TRANS_TO_OPER) {
7401 writel((IPR_PCII_ERROR_INTERRUPTS | IPR_PCII_HRRQ_UPDATED),
7402 ioa_cfg->regs.clr_interrupt_mask_reg32);
7403 int_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg);
7404 return IPR_RC_JOB_CONTINUE;
7407 /* Enable destructive diagnostics on IOA */
7408 writel(ioa_cfg->doorbell, ioa_cfg->regs.set_uproc_interrupt_reg32);
7410 if (ioa_cfg->sis64) {
7411 maskval = IPR_PCII_IPL_STAGE_CHANGE;
7412 maskval = (maskval << 32) | IPR_PCII_OPER_INTERRUPTS;
7413 writeq(maskval, ioa_cfg->regs.clr_interrupt_mask_reg);
7415 writel(IPR_PCII_OPER_INTERRUPTS, ioa_cfg->regs.clr_interrupt_mask_reg32);
7417 int_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg);
7419 dev_info(&ioa_cfg->pdev->dev, "Initializing IOA.\n");
7421 if (ioa_cfg->sis64) {
7422 ipr_cmd->job_step = ipr_reset_next_stage;
7423 return IPR_RC_JOB_CONTINUE;
7426 ipr_cmd->timer.data = (unsigned long) ipr_cmd;
7427 ipr_cmd->timer.expires = jiffies + (ioa_cfg->transop_timeout * HZ);
7428 ipr_cmd->timer.function = (void (*)(unsigned long))ipr_oper_timeout;
7429 ipr_cmd->done = ipr_reset_ioa_job;
7430 add_timer(&ipr_cmd->timer);
7431 list_add_tail(&ipr_cmd->queue, &ioa_cfg->pending_q);
7434 return IPR_RC_JOB_RETURN;
7438 * ipr_reset_wait_for_dump - Wait for a dump to timeout.
7439 * @ipr_cmd: ipr command struct
7441 * This function is invoked when an adapter dump has run out
7442 * of processing time.
7445 * IPR_RC_JOB_CONTINUE
7447 static int ipr_reset_wait_for_dump(struct ipr_cmnd *ipr_cmd)
7449 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7451 if (ioa_cfg->sdt_state == GET_DUMP)
7452 ioa_cfg->sdt_state = WAIT_FOR_DUMP;
7453 else if (ioa_cfg->sdt_state == READ_DUMP)
7454 ioa_cfg->sdt_state = ABORT_DUMP;
7456 ipr_cmd->job_step = ipr_reset_alert;
7458 return IPR_RC_JOB_CONTINUE;
7462 * ipr_unit_check_no_data - Log a unit check/no data error log
7463 * @ioa_cfg: ioa config struct
7465 * Logs an error indicating the adapter unit checked, but for some
7466 * reason, we were unable to fetch the unit check buffer.
7471 static void ipr_unit_check_no_data(struct ipr_ioa_cfg *ioa_cfg)
7473 ioa_cfg->errors_logged++;
7474 dev_err(&ioa_cfg->pdev->dev, "IOA unit check with no data\n");
7478 * ipr_get_unit_check_buffer - Get the unit check buffer from the IOA
7479 * @ioa_cfg: ioa config struct
7481 * Fetches the unit check buffer from the adapter by clocking the data
7482 * through the mailbox register.
7487 static void ipr_get_unit_check_buffer(struct ipr_ioa_cfg *ioa_cfg)
7489 unsigned long mailbox;
7490 struct ipr_hostrcb *hostrcb;
7491 struct ipr_uc_sdt sdt;
7495 mailbox = readl(ioa_cfg->ioa_mailbox);
7497 if (!ioa_cfg->sis64 && !ipr_sdt_is_fmt2(mailbox)) {
7498 ipr_unit_check_no_data(ioa_cfg);
7502 memset(&sdt, 0, sizeof(struct ipr_uc_sdt));
7503 rc = ipr_get_ldump_data_section(ioa_cfg, mailbox, (__be32 *) &sdt,
7504 (sizeof(struct ipr_uc_sdt)) / sizeof(__be32));
7506 if (rc || !(sdt.entry[0].flags & IPR_SDT_VALID_ENTRY) ||
7507 ((be32_to_cpu(sdt.hdr.state) != IPR_FMT3_SDT_READY_TO_USE) &&
7508 (be32_to_cpu(sdt.hdr.state) != IPR_FMT2_SDT_READY_TO_USE))) {
7509 ipr_unit_check_no_data(ioa_cfg);
7513 /* Find length of the first sdt entry (UC buffer) */
7514 if (be32_to_cpu(sdt.hdr.state) == IPR_FMT3_SDT_READY_TO_USE)
7515 length = be32_to_cpu(sdt.entry[0].end_token);
7517 length = (be32_to_cpu(sdt.entry[0].end_token) -
7518 be32_to_cpu(sdt.entry[0].start_token)) &
7519 IPR_FMT2_MBX_ADDR_MASK;
7521 hostrcb = list_entry(ioa_cfg->hostrcb_free_q.next,
7522 struct ipr_hostrcb, queue);
7523 list_del(&hostrcb->queue);
7524 memset(&hostrcb->hcam, 0, sizeof(hostrcb->hcam));
7526 rc = ipr_get_ldump_data_section(ioa_cfg,
7527 be32_to_cpu(sdt.entry[0].start_token),
7528 (__be32 *)&hostrcb->hcam,
7529 min(length, (int)sizeof(hostrcb->hcam)) / sizeof(__be32));
7532 ipr_handle_log_data(ioa_cfg, hostrcb);
7533 ioasc = be32_to_cpu(hostrcb->hcam.u.error.fd_ioasc);
7534 if (ioasc == IPR_IOASC_NR_IOA_RESET_REQUIRED &&
7535 ioa_cfg->sdt_state == GET_DUMP)
7536 ioa_cfg->sdt_state = WAIT_FOR_DUMP;
7538 ipr_unit_check_no_data(ioa_cfg);
7540 list_add_tail(&hostrcb->queue, &ioa_cfg->hostrcb_free_q);
7544 * ipr_reset_get_unit_check_job - Call to get the unit check buffer.
7545 * @ipr_cmd: ipr command struct
7547 * Description: This function will call to get the unit check buffer.
7552 static int ipr_reset_get_unit_check_job(struct ipr_cmnd *ipr_cmd)
7554 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7557 ioa_cfg->ioa_unit_checked = 0;
7558 ipr_get_unit_check_buffer(ioa_cfg);
7559 ipr_cmd->job_step = ipr_reset_alert;
7560 ipr_reset_start_timer(ipr_cmd, 0);
7563 return IPR_RC_JOB_RETURN;
7567 * ipr_reset_restore_cfg_space - Restore PCI config space.
7568 * @ipr_cmd: ipr command struct
7570 * Description: This function restores the saved PCI config space of
7571 * the adapter, fails all outstanding ops back to the callers, and
7572 * fetches the dump/unit check if applicable to this reset.
7575 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
7577 static int ipr_reset_restore_cfg_space(struct ipr_cmnd *ipr_cmd)
7579 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7583 ioa_cfg->pdev->state_saved = true;
7584 pci_restore_state(ioa_cfg->pdev);
7586 if (ipr_set_pcix_cmd_reg(ioa_cfg)) {
7587 ipr_cmd->s.ioasa.hdr.ioasc = cpu_to_be32(IPR_IOASC_PCI_ACCESS_ERROR);
7588 return IPR_RC_JOB_CONTINUE;
7591 ipr_fail_all_ops(ioa_cfg);
7593 if (ioa_cfg->sis64) {
7594 /* Set the adapter to the correct endian mode. */
7595 writel(IPR_ENDIAN_SWAP_KEY, ioa_cfg->regs.endian_swap_reg);
7596 int_reg = readl(ioa_cfg->regs.endian_swap_reg);
7599 if (ioa_cfg->ioa_unit_checked) {
7600 if (ioa_cfg->sis64) {
7601 ipr_cmd->job_step = ipr_reset_get_unit_check_job;
7602 ipr_reset_start_timer(ipr_cmd, IPR_DUMP_DELAY_TIMEOUT);
7603 return IPR_RC_JOB_RETURN;
7605 ioa_cfg->ioa_unit_checked = 0;
7606 ipr_get_unit_check_buffer(ioa_cfg);
7607 ipr_cmd->job_step = ipr_reset_alert;
7608 ipr_reset_start_timer(ipr_cmd, 0);
7609 return IPR_RC_JOB_RETURN;
7613 if (ioa_cfg->in_ioa_bringdown) {
7614 ipr_cmd->job_step = ipr_ioa_bringdown_done;
7616 ipr_cmd->job_step = ipr_reset_enable_ioa;
7618 if (GET_DUMP == ioa_cfg->sdt_state) {
7619 ioa_cfg->sdt_state = READ_DUMP;
7621 ipr_reset_start_timer(ipr_cmd, IPR_SIS64_DUMP_TIMEOUT);
7623 ipr_reset_start_timer(ipr_cmd, IPR_SIS32_DUMP_TIMEOUT);
7624 ipr_cmd->job_step = ipr_reset_wait_for_dump;
7625 schedule_work(&ioa_cfg->work_q);
7626 return IPR_RC_JOB_RETURN;
7631 return IPR_RC_JOB_CONTINUE;
7635 * ipr_reset_bist_done - BIST has completed on the adapter.
7636 * @ipr_cmd: ipr command struct
7638 * Description: Unblock config space and resume the reset process.
7641 * IPR_RC_JOB_CONTINUE
7643 static int ipr_reset_bist_done(struct ipr_cmnd *ipr_cmd)
7646 pci_unblock_user_cfg_access(ipr_cmd->ioa_cfg->pdev);
7647 ipr_cmd->job_step = ipr_reset_restore_cfg_space;
7649 return IPR_RC_JOB_CONTINUE;
7653 * ipr_reset_start_bist - Run BIST on the adapter.
7654 * @ipr_cmd: ipr command struct
7656 * Description: This function runs BIST on the adapter, then delays 2 seconds.
7659 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
7661 static int ipr_reset_start_bist(struct ipr_cmnd *ipr_cmd)
7663 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7664 int rc = PCIBIOS_SUCCESSFUL;
7667 pci_block_user_cfg_access(ioa_cfg->pdev);
7669 if (ioa_cfg->ipr_chip->bist_method == IPR_MMIO)
7670 writel(IPR_UPROCI_SIS64_START_BIST,
7671 ioa_cfg->regs.set_uproc_interrupt_reg32);
7673 rc = pci_write_config_byte(ioa_cfg->pdev, PCI_BIST, PCI_BIST_START);
7675 if (rc == PCIBIOS_SUCCESSFUL) {
7676 ipr_cmd->job_step = ipr_reset_bist_done;
7677 ipr_reset_start_timer(ipr_cmd, IPR_WAIT_FOR_BIST_TIMEOUT);
7678 rc = IPR_RC_JOB_RETURN;
7680 pci_unblock_user_cfg_access(ipr_cmd->ioa_cfg->pdev);
7681 ipr_cmd->s.ioasa.hdr.ioasc = cpu_to_be32(IPR_IOASC_PCI_ACCESS_ERROR);
7682 rc = IPR_RC_JOB_CONTINUE;
7690 * ipr_reset_slot_reset_done - Clear PCI reset to the adapter
7691 * @ipr_cmd: ipr command struct
7693 * Description: This clears PCI reset to the adapter and delays two seconds.
7698 static int ipr_reset_slot_reset_done(struct ipr_cmnd *ipr_cmd)
7701 pci_set_pcie_reset_state(ipr_cmd->ioa_cfg->pdev, pcie_deassert_reset);
7702 ipr_cmd->job_step = ipr_reset_bist_done;
7703 ipr_reset_start_timer(ipr_cmd, IPR_WAIT_FOR_BIST_TIMEOUT);
7705 return IPR_RC_JOB_RETURN;
7709 * ipr_reset_slot_reset - Reset the PCI slot of the adapter.
7710 * @ipr_cmd: ipr command struct
7712 * Description: This asserts PCI reset to the adapter.
7717 static int ipr_reset_slot_reset(struct ipr_cmnd *ipr_cmd)
7719 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7720 struct pci_dev *pdev = ioa_cfg->pdev;
7723 pci_block_user_cfg_access(pdev);
7724 pci_set_pcie_reset_state(pdev, pcie_warm_reset);
7725 ipr_cmd->job_step = ipr_reset_slot_reset_done;
7726 ipr_reset_start_timer(ipr_cmd, IPR_PCI_RESET_TIMEOUT);
7728 return IPR_RC_JOB_RETURN;
7732 * ipr_reset_allowed - Query whether or not IOA can be reset
7733 * @ioa_cfg: ioa config struct
7736 * 0 if reset not allowed / non-zero if reset is allowed
7738 static int ipr_reset_allowed(struct ipr_ioa_cfg *ioa_cfg)
7740 volatile u32 temp_reg;
7742 temp_reg = readl(ioa_cfg->regs.sense_interrupt_reg);
7743 return ((temp_reg & IPR_PCII_CRITICAL_OPERATION) == 0);
7747 * ipr_reset_wait_to_start_bist - Wait for permission to reset IOA.
7748 * @ipr_cmd: ipr command struct
7750 * Description: This function waits for adapter permission to run BIST,
7751 * then runs BIST. If the adapter does not give permission after a
7752 * reasonable time, we will reset the adapter anyway. The impact of
7753 * resetting the adapter without warning the adapter is the risk of
7754 * losing the persistent error log on the adapter. If the adapter is
7755 * reset while it is writing to the flash on the adapter, the flash
7756 * segment will have bad ECC and be zeroed.
7759 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
7761 static int ipr_reset_wait_to_start_bist(struct ipr_cmnd *ipr_cmd)
7763 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7764 int rc = IPR_RC_JOB_RETURN;
7766 if (!ipr_reset_allowed(ioa_cfg) && ipr_cmd->u.time_left) {
7767 ipr_cmd->u.time_left -= IPR_CHECK_FOR_RESET_TIMEOUT;
7768 ipr_reset_start_timer(ipr_cmd, IPR_CHECK_FOR_RESET_TIMEOUT);
7770 ipr_cmd->job_step = ioa_cfg->reset;
7771 rc = IPR_RC_JOB_CONTINUE;
7778 * ipr_reset_alert - Alert the adapter of a pending reset
7779 * @ipr_cmd: ipr command struct
7781 * Description: This function alerts the adapter that it will be reset.
7782 * If memory space is not currently enabled, proceed directly
7783 * to running BIST on the adapter. The timer must always be started
7784 * so we guarantee we do not run BIST from ipr_isr.
7789 static int ipr_reset_alert(struct ipr_cmnd *ipr_cmd)
7791 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7796 rc = pci_read_config_word(ioa_cfg->pdev, PCI_COMMAND, &cmd_reg);
7798 if ((rc == PCIBIOS_SUCCESSFUL) && (cmd_reg & PCI_COMMAND_MEMORY)) {
7799 ipr_mask_and_clear_interrupts(ioa_cfg, ~0);
7800 writel(IPR_UPROCI_RESET_ALERT, ioa_cfg->regs.set_uproc_interrupt_reg32);
7801 ipr_cmd->job_step = ipr_reset_wait_to_start_bist;
7803 ipr_cmd->job_step = ioa_cfg->reset;
7806 ipr_cmd->u.time_left = IPR_WAIT_FOR_RESET_TIMEOUT;
7807 ipr_reset_start_timer(ipr_cmd, IPR_CHECK_FOR_RESET_TIMEOUT);
7810 return IPR_RC_JOB_RETURN;
7814 * ipr_reset_ucode_download_done - Microcode download completion
7815 * @ipr_cmd: ipr command struct
7817 * Description: This function unmaps the microcode download buffer.
7820 * IPR_RC_JOB_CONTINUE
7822 static int ipr_reset_ucode_download_done(struct ipr_cmnd *ipr_cmd)
7824 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7825 struct ipr_sglist *sglist = ioa_cfg->ucode_sglist;
7827 pci_unmap_sg(ioa_cfg->pdev, sglist->scatterlist,
7828 sglist->num_sg, DMA_TO_DEVICE);
7830 ipr_cmd->job_step = ipr_reset_alert;
7831 return IPR_RC_JOB_CONTINUE;
7835 * ipr_reset_ucode_download - Download microcode to the adapter
7836 * @ipr_cmd: ipr command struct
7838 * Description: This function checks to see if it there is microcode
7839 * to download to the adapter. If there is, a download is performed.
7842 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
7844 static int ipr_reset_ucode_download(struct ipr_cmnd *ipr_cmd)
7846 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7847 struct ipr_sglist *sglist = ioa_cfg->ucode_sglist;
7850 ipr_cmd->job_step = ipr_reset_alert;
7853 return IPR_RC_JOB_CONTINUE;
7855 ipr_cmd->ioarcb.res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE);
7856 ipr_cmd->ioarcb.cmd_pkt.request_type = IPR_RQTYPE_SCSICDB;
7857 ipr_cmd->ioarcb.cmd_pkt.cdb[0] = WRITE_BUFFER;
7858 ipr_cmd->ioarcb.cmd_pkt.cdb[1] = IPR_WR_BUF_DOWNLOAD_AND_SAVE;
7859 ipr_cmd->ioarcb.cmd_pkt.cdb[6] = (sglist->buffer_len & 0xff0000) >> 16;
7860 ipr_cmd->ioarcb.cmd_pkt.cdb[7] = (sglist->buffer_len & 0x00ff00) >> 8;
7861 ipr_cmd->ioarcb.cmd_pkt.cdb[8] = sglist->buffer_len & 0x0000ff;
7864 ipr_build_ucode_ioadl64(ipr_cmd, sglist);
7866 ipr_build_ucode_ioadl(ipr_cmd, sglist);
7867 ipr_cmd->job_step = ipr_reset_ucode_download_done;
7869 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout,
7870 IPR_WRITE_BUFFER_TIMEOUT);
7873 return IPR_RC_JOB_RETURN;
7877 * ipr_reset_shutdown_ioa - Shutdown the adapter
7878 * @ipr_cmd: ipr command struct
7880 * Description: This function issues an adapter shutdown of the
7881 * specified type to the specified adapter as part of the
7882 * adapter reset job.
7885 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
7887 static int ipr_reset_shutdown_ioa(struct ipr_cmnd *ipr_cmd)
7889 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7890 enum ipr_shutdown_type shutdown_type = ipr_cmd->u.shutdown_type;
7891 unsigned long timeout;
7892 int rc = IPR_RC_JOB_CONTINUE;
7895 if (shutdown_type != IPR_SHUTDOWN_NONE && !ioa_cfg->ioa_is_dead) {
7896 ipr_cmd->ioarcb.res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE);
7897 ipr_cmd->ioarcb.cmd_pkt.request_type = IPR_RQTYPE_IOACMD;
7898 ipr_cmd->ioarcb.cmd_pkt.cdb[0] = IPR_IOA_SHUTDOWN;
7899 ipr_cmd->ioarcb.cmd_pkt.cdb[1] = shutdown_type;
7901 if (shutdown_type == IPR_SHUTDOWN_NORMAL)
7902 timeout = IPR_SHUTDOWN_TIMEOUT;
7903 else if (shutdown_type == IPR_SHUTDOWN_PREPARE_FOR_NORMAL)
7904 timeout = IPR_INTERNAL_TIMEOUT;
7905 else if (ioa_cfg->dual_raid && ipr_dual_ioa_raid)
7906 timeout = IPR_DUAL_IOA_ABBR_SHUTDOWN_TO;
7908 timeout = IPR_ABBREV_SHUTDOWN_TIMEOUT;
7910 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, timeout);
7912 rc = IPR_RC_JOB_RETURN;
7913 ipr_cmd->job_step = ipr_reset_ucode_download;
7915 ipr_cmd->job_step = ipr_reset_alert;
7922 * ipr_reset_ioa_job - Adapter reset job
7923 * @ipr_cmd: ipr command struct
7925 * Description: This function is the job router for the adapter reset job.
7930 static void ipr_reset_ioa_job(struct ipr_cmnd *ipr_cmd)
7933 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7936 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
7938 if (ioa_cfg->reset_cmd != ipr_cmd) {
7940 * We are doing nested adapter resets and this is
7941 * not the current reset job.
7943 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
7947 if (IPR_IOASC_SENSE_KEY(ioasc)) {
7948 rc = ipr_cmd->job_step_failed(ipr_cmd);
7949 if (rc == IPR_RC_JOB_RETURN)
7953 ipr_reinit_ipr_cmnd(ipr_cmd);
7954 ipr_cmd->job_step_failed = ipr_reset_cmd_failed;
7955 rc = ipr_cmd->job_step(ipr_cmd);
7956 } while(rc == IPR_RC_JOB_CONTINUE);
7960 * _ipr_initiate_ioa_reset - Initiate an adapter reset
7961 * @ioa_cfg: ioa config struct
7962 * @job_step: first job step of reset job
7963 * @shutdown_type: shutdown type
7965 * Description: This function will initiate the reset of the given adapter
7966 * starting at the selected job step.
7967 * If the caller needs to wait on the completion of the reset,
7968 * the caller must sleep on the reset_wait_q.
7973 static void _ipr_initiate_ioa_reset(struct ipr_ioa_cfg *ioa_cfg,
7974 int (*job_step) (struct ipr_cmnd *),
7975 enum ipr_shutdown_type shutdown_type)
7977 struct ipr_cmnd *ipr_cmd;
7979 ioa_cfg->in_reset_reload = 1;
7980 ioa_cfg->allow_cmds = 0;
7981 scsi_block_requests(ioa_cfg->host);
7983 ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg);
7984 ioa_cfg->reset_cmd = ipr_cmd;
7985 ipr_cmd->job_step = job_step;
7986 ipr_cmd->u.shutdown_type = shutdown_type;
7988 ipr_reset_ioa_job(ipr_cmd);
7992 * ipr_initiate_ioa_reset - Initiate an adapter reset
7993 * @ioa_cfg: ioa config struct
7994 * @shutdown_type: shutdown type
7996 * Description: This function will initiate the reset of the given adapter.
7997 * If the caller needs to wait on the completion of the reset,
7998 * the caller must sleep on the reset_wait_q.
8003 static void ipr_initiate_ioa_reset(struct ipr_ioa_cfg *ioa_cfg,
8004 enum ipr_shutdown_type shutdown_type)
8006 if (ioa_cfg->ioa_is_dead)
8009 if (ioa_cfg->in_reset_reload) {
8010 if (ioa_cfg->sdt_state == GET_DUMP)
8011 ioa_cfg->sdt_state = WAIT_FOR_DUMP;
8012 else if (ioa_cfg->sdt_state == READ_DUMP)
8013 ioa_cfg->sdt_state = ABORT_DUMP;
8016 if (ioa_cfg->reset_retries++ >= IPR_NUM_RESET_RELOAD_RETRIES) {
8017 dev_err(&ioa_cfg->pdev->dev,
8018 "IOA taken offline - error recovery failed\n");
8020 ioa_cfg->reset_retries = 0;
8021 ioa_cfg->ioa_is_dead = 1;
8023 if (ioa_cfg->in_ioa_bringdown) {
8024 ioa_cfg->reset_cmd = NULL;
8025 ioa_cfg->in_reset_reload = 0;
8026 ipr_fail_all_ops(ioa_cfg);
8027 wake_up_all(&ioa_cfg->reset_wait_q);
8029 spin_unlock_irq(ioa_cfg->host->host_lock);
8030 scsi_unblock_requests(ioa_cfg->host);
8031 spin_lock_irq(ioa_cfg->host->host_lock);
8034 ioa_cfg->in_ioa_bringdown = 1;
8035 shutdown_type = IPR_SHUTDOWN_NONE;
8039 _ipr_initiate_ioa_reset(ioa_cfg, ipr_reset_shutdown_ioa,
8044 * ipr_reset_freeze - Hold off all I/O activity
8045 * @ipr_cmd: ipr command struct
8047 * Description: If the PCI slot is frozen, hold off all I/O
8048 * activity; then, as soon as the slot is available again,
8049 * initiate an adapter reset.
8051 static int ipr_reset_freeze(struct ipr_cmnd *ipr_cmd)
8053 /* Disallow new interrupts, avoid loop */
8054 ipr_cmd->ioa_cfg->allow_interrupts = 0;
8055 list_add_tail(&ipr_cmd->queue, &ipr_cmd->ioa_cfg->pending_q);
8056 ipr_cmd->done = ipr_reset_ioa_job;
8057 return IPR_RC_JOB_RETURN;
8061 * ipr_pci_frozen - Called when slot has experienced a PCI bus error.
8062 * @pdev: PCI device struct
8064 * Description: This routine is called to tell us that the PCI bus
8065 * is down. Can't do anything here, except put the device driver
8066 * into a holding pattern, waiting for the PCI bus to come back.
8068 static void ipr_pci_frozen(struct pci_dev *pdev)
8070 unsigned long flags = 0;
8071 struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev);
8073 spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
8074 _ipr_initiate_ioa_reset(ioa_cfg, ipr_reset_freeze, IPR_SHUTDOWN_NONE);
8075 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
8079 * ipr_pci_slot_reset - Called when PCI slot has been reset.
8080 * @pdev: PCI device struct
8082 * Description: This routine is called by the pci error recovery
8083 * code after the PCI slot has been reset, just before we
8084 * should resume normal operations.
8086 static pci_ers_result_t ipr_pci_slot_reset(struct pci_dev *pdev)
8088 unsigned long flags = 0;
8089 struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev);
8091 spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
8092 if (ioa_cfg->needs_warm_reset)
8093 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
8095 _ipr_initiate_ioa_reset(ioa_cfg, ipr_reset_restore_cfg_space,
8097 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
8098 return PCI_ERS_RESULT_RECOVERED;
8102 * ipr_pci_perm_failure - Called when PCI slot is dead for good.
8103 * @pdev: PCI device struct
8105 * Description: This routine is called when the PCI bus has
8106 * permanently failed.
8108 static void ipr_pci_perm_failure(struct pci_dev *pdev)
8110 unsigned long flags = 0;
8111 struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev);
8113 spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
8114 if (ioa_cfg->sdt_state == WAIT_FOR_DUMP)
8115 ioa_cfg->sdt_state = ABORT_DUMP;
8116 ioa_cfg->reset_retries = IPR_NUM_RESET_RELOAD_RETRIES;
8117 ioa_cfg->in_ioa_bringdown = 1;
8118 ioa_cfg->allow_cmds = 0;
8119 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
8120 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
8124 * ipr_pci_error_detected - Called when a PCI error is detected.
8125 * @pdev: PCI device struct
8126 * @state: PCI channel state
8128 * Description: Called when a PCI error is detected.
8131 * PCI_ERS_RESULT_NEED_RESET or PCI_ERS_RESULT_DISCONNECT
8133 static pci_ers_result_t ipr_pci_error_detected(struct pci_dev *pdev,
8134 pci_channel_state_t state)
8137 case pci_channel_io_frozen:
8138 ipr_pci_frozen(pdev);
8139 return PCI_ERS_RESULT_NEED_RESET;
8140 case pci_channel_io_perm_failure:
8141 ipr_pci_perm_failure(pdev);
8142 return PCI_ERS_RESULT_DISCONNECT;
8147 return PCI_ERS_RESULT_NEED_RESET;
8151 * ipr_probe_ioa_part2 - Initializes IOAs found in ipr_probe_ioa(..)
8152 * @ioa_cfg: ioa cfg struct
8154 * Description: This is the second phase of adapter intialization
8155 * This function takes care of initilizing the adapter to the point
8156 * where it can accept new commands.
8159 * 0 on success / -EIO on failure
8161 static int __devinit ipr_probe_ioa_part2(struct ipr_ioa_cfg *ioa_cfg)
8164 unsigned long host_lock_flags = 0;
8167 spin_lock_irqsave(ioa_cfg->host->host_lock, host_lock_flags);
8168 dev_dbg(&ioa_cfg->pdev->dev, "ioa_cfg adx: 0x%p\n", ioa_cfg);
8169 if (ioa_cfg->needs_hard_reset) {
8170 ioa_cfg->needs_hard_reset = 0;
8171 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
8173 _ipr_initiate_ioa_reset(ioa_cfg, ipr_reset_enable_ioa,
8176 spin_unlock_irqrestore(ioa_cfg->host->host_lock, host_lock_flags);
8177 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
8178 spin_lock_irqsave(ioa_cfg->host->host_lock, host_lock_flags);
8180 if (ioa_cfg->ioa_is_dead) {
8182 } else if (ipr_invalid_adapter(ioa_cfg)) {
8186 dev_err(&ioa_cfg->pdev->dev,
8187 "Adapter not supported in this hardware configuration.\n");
8190 spin_unlock_irqrestore(ioa_cfg->host->host_lock, host_lock_flags);
8197 * ipr_free_cmd_blks - Frees command blocks allocated for an adapter
8198 * @ioa_cfg: ioa config struct
8203 static void ipr_free_cmd_blks(struct ipr_ioa_cfg *ioa_cfg)
8207 for (i = 0; i < IPR_NUM_CMD_BLKS; i++) {
8208 if (ioa_cfg->ipr_cmnd_list[i])
8209 pci_pool_free(ioa_cfg->ipr_cmd_pool,
8210 ioa_cfg->ipr_cmnd_list[i],
8211 ioa_cfg->ipr_cmnd_list_dma[i]);
8213 ioa_cfg->ipr_cmnd_list[i] = NULL;
8216 if (ioa_cfg->ipr_cmd_pool)
8217 pci_pool_destroy (ioa_cfg->ipr_cmd_pool);
8219 ioa_cfg->ipr_cmd_pool = NULL;
8223 * ipr_free_mem - Frees memory allocated for an adapter
8224 * @ioa_cfg: ioa cfg struct
8229 static void ipr_free_mem(struct ipr_ioa_cfg *ioa_cfg)
8233 kfree(ioa_cfg->res_entries);
8234 pci_free_consistent(ioa_cfg->pdev, sizeof(struct ipr_misc_cbs),
8235 ioa_cfg->vpd_cbs, ioa_cfg->vpd_cbs_dma);
8236 ipr_free_cmd_blks(ioa_cfg);
8237 pci_free_consistent(ioa_cfg->pdev, sizeof(u32) * IPR_NUM_CMD_BLKS,
8238 ioa_cfg->host_rrq, ioa_cfg->host_rrq_dma);
8239 pci_free_consistent(ioa_cfg->pdev, ioa_cfg->cfg_table_size,
8240 ioa_cfg->u.cfg_table,
8241 ioa_cfg->cfg_table_dma);
8243 for (i = 0; i < IPR_NUM_HCAMS; i++) {
8244 pci_free_consistent(ioa_cfg->pdev,
8245 sizeof(struct ipr_hostrcb),
8246 ioa_cfg->hostrcb[i],
8247 ioa_cfg->hostrcb_dma[i]);
8250 ipr_free_dump(ioa_cfg);
8251 kfree(ioa_cfg->trace);
8255 * ipr_free_all_resources - Free all allocated resources for an adapter.
8256 * @ipr_cmd: ipr command struct
8258 * This function frees all allocated resources for the
8259 * specified adapter.
8264 static void ipr_free_all_resources(struct ipr_ioa_cfg *ioa_cfg)
8266 struct pci_dev *pdev = ioa_cfg->pdev;
8269 free_irq(pdev->irq, ioa_cfg);
8270 pci_disable_msi(pdev);
8271 iounmap(ioa_cfg->hdw_dma_regs);
8272 pci_release_regions(pdev);
8273 ipr_free_mem(ioa_cfg);
8274 scsi_host_put(ioa_cfg->host);
8275 pci_disable_device(pdev);
8280 * ipr_alloc_cmd_blks - Allocate command blocks for an adapter
8281 * @ioa_cfg: ioa config struct
8284 * 0 on success / -ENOMEM on allocation failure
8286 static int __devinit ipr_alloc_cmd_blks(struct ipr_ioa_cfg *ioa_cfg)
8288 struct ipr_cmnd *ipr_cmd;
8289 struct ipr_ioarcb *ioarcb;
8290 dma_addr_t dma_addr;
8293 ioa_cfg->ipr_cmd_pool = pci_pool_create (IPR_NAME, ioa_cfg->pdev,
8294 sizeof(struct ipr_cmnd), 16, 0);
8296 if (!ioa_cfg->ipr_cmd_pool)
8299 for (i = 0; i < IPR_NUM_CMD_BLKS; i++) {
8300 ipr_cmd = pci_pool_alloc (ioa_cfg->ipr_cmd_pool, GFP_KERNEL, &dma_addr);
8303 ipr_free_cmd_blks(ioa_cfg);
8307 memset(ipr_cmd, 0, sizeof(*ipr_cmd));
8308 ioa_cfg->ipr_cmnd_list[i] = ipr_cmd;
8309 ioa_cfg->ipr_cmnd_list_dma[i] = dma_addr;
8311 ioarcb = &ipr_cmd->ioarcb;
8312 ipr_cmd->dma_addr = dma_addr;
8314 ioarcb->a.ioarcb_host_pci_addr64 = cpu_to_be64(dma_addr);
8316 ioarcb->a.ioarcb_host_pci_addr = cpu_to_be32(dma_addr);
8318 ioarcb->host_response_handle = cpu_to_be32(i << 2);
8319 if (ioa_cfg->sis64) {
8320 ioarcb->u.sis64_addr_data.data_ioadl_addr =
8321 cpu_to_be64(dma_addr + offsetof(struct ipr_cmnd, i.ioadl64));
8322 ioarcb->u.sis64_addr_data.ioasa_host_pci_addr =
8323 cpu_to_be64(dma_addr + offsetof(struct ipr_cmnd, s.ioasa64));
8325 ioarcb->write_ioadl_addr =
8326 cpu_to_be32(dma_addr + offsetof(struct ipr_cmnd, i.ioadl));
8327 ioarcb->read_ioadl_addr = ioarcb->write_ioadl_addr;
8328 ioarcb->ioasa_host_pci_addr =
8329 cpu_to_be32(dma_addr + offsetof(struct ipr_cmnd, s.ioasa));
8331 ioarcb->ioasa_len = cpu_to_be16(sizeof(struct ipr_ioasa));
8332 ipr_cmd->cmd_index = i;
8333 ipr_cmd->ioa_cfg = ioa_cfg;
8334 ipr_cmd->sense_buffer_dma = dma_addr +
8335 offsetof(struct ipr_cmnd, sense_buffer);
8337 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
8344 * ipr_alloc_mem - Allocate memory for an adapter
8345 * @ioa_cfg: ioa config struct
8348 * 0 on success / non-zero for error
8350 static int __devinit ipr_alloc_mem(struct ipr_ioa_cfg *ioa_cfg)
8352 struct pci_dev *pdev = ioa_cfg->pdev;
8353 int i, rc = -ENOMEM;
8356 ioa_cfg->res_entries = kzalloc(sizeof(struct ipr_resource_entry) *
8357 ioa_cfg->max_devs_supported, GFP_KERNEL);
8359 if (!ioa_cfg->res_entries)
8362 if (ioa_cfg->sis64) {
8363 ioa_cfg->target_ids = kzalloc(sizeof(unsigned long) *
8364 BITS_TO_LONGS(ioa_cfg->max_devs_supported), GFP_KERNEL);
8365 ioa_cfg->array_ids = kzalloc(sizeof(unsigned long) *
8366 BITS_TO_LONGS(ioa_cfg->max_devs_supported), GFP_KERNEL);
8367 ioa_cfg->vset_ids = kzalloc(sizeof(unsigned long) *
8368 BITS_TO_LONGS(ioa_cfg->max_devs_supported), GFP_KERNEL);
8371 for (i = 0; i < ioa_cfg->max_devs_supported; i++) {
8372 list_add_tail(&ioa_cfg->res_entries[i].queue, &ioa_cfg->free_res_q);
8373 ioa_cfg->res_entries[i].ioa_cfg = ioa_cfg;
8376 ioa_cfg->vpd_cbs = pci_alloc_consistent(ioa_cfg->pdev,
8377 sizeof(struct ipr_misc_cbs),
8378 &ioa_cfg->vpd_cbs_dma);
8380 if (!ioa_cfg->vpd_cbs)
8381 goto out_free_res_entries;
8383 if (ipr_alloc_cmd_blks(ioa_cfg))
8384 goto out_free_vpd_cbs;
8386 ioa_cfg->host_rrq = pci_alloc_consistent(ioa_cfg->pdev,
8387 sizeof(u32) * IPR_NUM_CMD_BLKS,
8388 &ioa_cfg->host_rrq_dma);
8390 if (!ioa_cfg->host_rrq)
8391 goto out_ipr_free_cmd_blocks;
8393 ioa_cfg->u.cfg_table = pci_alloc_consistent(ioa_cfg->pdev,
8394 ioa_cfg->cfg_table_size,
8395 &ioa_cfg->cfg_table_dma);
8397 if (!ioa_cfg->u.cfg_table)
8398 goto out_free_host_rrq;
8400 for (i = 0; i < IPR_NUM_HCAMS; i++) {
8401 ioa_cfg->hostrcb[i] = pci_alloc_consistent(ioa_cfg->pdev,
8402 sizeof(struct ipr_hostrcb),
8403 &ioa_cfg->hostrcb_dma[i]);
8405 if (!ioa_cfg->hostrcb[i])
8406 goto out_free_hostrcb_dma;
8408 ioa_cfg->hostrcb[i]->hostrcb_dma =
8409 ioa_cfg->hostrcb_dma[i] + offsetof(struct ipr_hostrcb, hcam);
8410 ioa_cfg->hostrcb[i]->ioa_cfg = ioa_cfg;
8411 list_add_tail(&ioa_cfg->hostrcb[i]->queue, &ioa_cfg->hostrcb_free_q);
8414 ioa_cfg->trace = kzalloc(sizeof(struct ipr_trace_entry) *
8415 IPR_NUM_TRACE_ENTRIES, GFP_KERNEL);
8417 if (!ioa_cfg->trace)
8418 goto out_free_hostrcb_dma;
8425 out_free_hostrcb_dma:
8427 pci_free_consistent(pdev, sizeof(struct ipr_hostrcb),
8428 ioa_cfg->hostrcb[i],
8429 ioa_cfg->hostrcb_dma[i]);
8431 pci_free_consistent(pdev, ioa_cfg->cfg_table_size,
8432 ioa_cfg->u.cfg_table,
8433 ioa_cfg->cfg_table_dma);
8435 pci_free_consistent(pdev, sizeof(u32) * IPR_NUM_CMD_BLKS,
8436 ioa_cfg->host_rrq, ioa_cfg->host_rrq_dma);
8437 out_ipr_free_cmd_blocks:
8438 ipr_free_cmd_blks(ioa_cfg);
8440 pci_free_consistent(pdev, sizeof(struct ipr_misc_cbs),
8441 ioa_cfg->vpd_cbs, ioa_cfg->vpd_cbs_dma);
8442 out_free_res_entries:
8443 kfree(ioa_cfg->res_entries);
8448 * ipr_initialize_bus_attr - Initialize SCSI bus attributes to default values
8449 * @ioa_cfg: ioa config struct
8454 static void __devinit ipr_initialize_bus_attr(struct ipr_ioa_cfg *ioa_cfg)
8458 for (i = 0; i < IPR_MAX_NUM_BUSES; i++) {
8459 ioa_cfg->bus_attr[i].bus = i;
8460 ioa_cfg->bus_attr[i].qas_enabled = 0;
8461 ioa_cfg->bus_attr[i].bus_width = IPR_DEFAULT_BUS_WIDTH;
8462 if (ipr_max_speed < ARRAY_SIZE(ipr_max_bus_speeds))
8463 ioa_cfg->bus_attr[i].max_xfer_rate = ipr_max_bus_speeds[ipr_max_speed];
8465 ioa_cfg->bus_attr[i].max_xfer_rate = IPR_U160_SCSI_RATE;
8470 * ipr_init_ioa_cfg - Initialize IOA config struct
8471 * @ioa_cfg: ioa config struct
8472 * @host: scsi host struct
8473 * @pdev: PCI dev struct
8478 static void __devinit ipr_init_ioa_cfg(struct ipr_ioa_cfg *ioa_cfg,
8479 struct Scsi_Host *host, struct pci_dev *pdev)
8481 const struct ipr_interrupt_offsets *p;
8482 struct ipr_interrupts *t;
8485 ioa_cfg->host = host;
8486 ioa_cfg->pdev = pdev;
8487 ioa_cfg->log_level = ipr_log_level;
8488 ioa_cfg->doorbell = IPR_DOORBELL;
8489 sprintf(ioa_cfg->eye_catcher, IPR_EYECATCHER);
8490 sprintf(ioa_cfg->trace_start, IPR_TRACE_START_LABEL);
8491 sprintf(ioa_cfg->ipr_free_label, IPR_FREEQ_LABEL);
8492 sprintf(ioa_cfg->ipr_pending_label, IPR_PENDQ_LABEL);
8493 sprintf(ioa_cfg->cfg_table_start, IPR_CFG_TBL_START);
8494 sprintf(ioa_cfg->resource_table_label, IPR_RES_TABLE_LABEL);
8495 sprintf(ioa_cfg->ipr_hcam_label, IPR_HCAM_LABEL);
8496 sprintf(ioa_cfg->ipr_cmd_label, IPR_CMD_LABEL);
8498 INIT_LIST_HEAD(&ioa_cfg->free_q);
8499 INIT_LIST_HEAD(&ioa_cfg->pending_q);
8500 INIT_LIST_HEAD(&ioa_cfg->hostrcb_free_q);
8501 INIT_LIST_HEAD(&ioa_cfg->hostrcb_pending_q);
8502 INIT_LIST_HEAD(&ioa_cfg->free_res_q);
8503 INIT_LIST_HEAD(&ioa_cfg->used_res_q);
8504 INIT_WORK(&ioa_cfg->work_q, ipr_worker_thread);
8505 init_waitqueue_head(&ioa_cfg->reset_wait_q);
8506 init_waitqueue_head(&ioa_cfg->msi_wait_q);
8507 ioa_cfg->sdt_state = INACTIVE;
8509 ipr_initialize_bus_attr(ioa_cfg);
8510 ioa_cfg->max_devs_supported = ipr_max_devs;
8512 if (ioa_cfg->sis64) {
8513 host->max_id = IPR_MAX_SIS64_TARGETS_PER_BUS;
8514 host->max_lun = IPR_MAX_SIS64_LUNS_PER_TARGET;
8515 if (ipr_max_devs > IPR_MAX_SIS64_DEVS)
8516 ioa_cfg->max_devs_supported = IPR_MAX_SIS64_DEVS;
8518 host->max_id = IPR_MAX_NUM_TARGETS_PER_BUS;
8519 host->max_lun = IPR_MAX_NUM_LUNS_PER_TARGET;
8520 if (ipr_max_devs > IPR_MAX_PHYSICAL_DEVS)
8521 ioa_cfg->max_devs_supported = IPR_MAX_PHYSICAL_DEVS;
8523 host->max_channel = IPR_MAX_BUS_TO_SCAN;
8524 host->unique_id = host->host_no;
8525 host->max_cmd_len = IPR_MAX_CDB_LEN;
8526 pci_set_drvdata(pdev, ioa_cfg);
8528 p = &ioa_cfg->chip_cfg->regs;
8530 base = ioa_cfg->hdw_dma_regs;
8532 t->set_interrupt_mask_reg = base + p->set_interrupt_mask_reg;
8533 t->clr_interrupt_mask_reg = base + p->clr_interrupt_mask_reg;
8534 t->clr_interrupt_mask_reg32 = base + p->clr_interrupt_mask_reg32;
8535 t->sense_interrupt_mask_reg = base + p->sense_interrupt_mask_reg;
8536 t->sense_interrupt_mask_reg32 = base + p->sense_interrupt_mask_reg32;
8537 t->clr_interrupt_reg = base + p->clr_interrupt_reg;
8538 t->clr_interrupt_reg32 = base + p->clr_interrupt_reg32;
8539 t->sense_interrupt_reg = base + p->sense_interrupt_reg;
8540 t->sense_interrupt_reg32 = base + p->sense_interrupt_reg32;
8541 t->ioarrin_reg = base + p->ioarrin_reg;
8542 t->sense_uproc_interrupt_reg = base + p->sense_uproc_interrupt_reg;
8543 t->sense_uproc_interrupt_reg32 = base + p->sense_uproc_interrupt_reg32;
8544 t->set_uproc_interrupt_reg = base + p->set_uproc_interrupt_reg;
8545 t->set_uproc_interrupt_reg32 = base + p->set_uproc_interrupt_reg32;
8546 t->clr_uproc_interrupt_reg = base + p->clr_uproc_interrupt_reg;
8547 t->clr_uproc_interrupt_reg32 = base + p->clr_uproc_interrupt_reg32;
8549 if (ioa_cfg->sis64) {
8550 t->init_feedback_reg = base + p->init_feedback_reg;
8551 t->dump_addr_reg = base + p->dump_addr_reg;
8552 t->dump_data_reg = base + p->dump_data_reg;
8553 t->endian_swap_reg = base + p->endian_swap_reg;
8558 * ipr_get_chip_info - Find adapter chip information
8559 * @dev_id: PCI device id struct
8562 * ptr to chip information on success / NULL on failure
8564 static const struct ipr_chip_t * __devinit
8565 ipr_get_chip_info(const struct pci_device_id *dev_id)
8569 for (i = 0; i < ARRAY_SIZE(ipr_chip); i++)
8570 if (ipr_chip[i].vendor == dev_id->vendor &&
8571 ipr_chip[i].device == dev_id->device)
8572 return &ipr_chip[i];
8577 * ipr_test_intr - Handle the interrupt generated in ipr_test_msi().
8578 * @pdev: PCI device struct
8580 * Description: Simply set the msi_received flag to 1 indicating that
8581 * Message Signaled Interrupts are supported.
8584 * 0 on success / non-zero on failure
8586 static irqreturn_t __devinit ipr_test_intr(int irq, void *devp)
8588 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)devp;
8589 unsigned long lock_flags = 0;
8590 irqreturn_t rc = IRQ_HANDLED;
8592 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
8594 ioa_cfg->msi_received = 1;
8595 wake_up(&ioa_cfg->msi_wait_q);
8597 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
8602 * ipr_test_msi - Test for Message Signaled Interrupt (MSI) support.
8603 * @pdev: PCI device struct
8605 * Description: The return value from pci_enable_msi() can not always be
8606 * trusted. This routine sets up and initiates a test interrupt to determine
8607 * if the interrupt is received via the ipr_test_intr() service routine.
8608 * If the tests fails, the driver will fall back to LSI.
8611 * 0 on success / non-zero on failure
8613 static int __devinit ipr_test_msi(struct ipr_ioa_cfg *ioa_cfg,
8614 struct pci_dev *pdev)
8617 volatile u32 int_reg;
8618 unsigned long lock_flags = 0;
8622 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
8623 init_waitqueue_head(&ioa_cfg->msi_wait_q);
8624 ioa_cfg->msi_received = 0;
8625 ipr_mask_and_clear_interrupts(ioa_cfg, ~IPR_PCII_IOA_TRANS_TO_OPER);
8626 writel(IPR_PCII_IO_DEBUG_ACKNOWLEDGE, ioa_cfg->regs.clr_interrupt_mask_reg32);
8627 int_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg);
8628 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
8630 rc = request_irq(pdev->irq, ipr_test_intr, 0, IPR_NAME, ioa_cfg);
8632 dev_err(&pdev->dev, "Can not assign irq %d\n", pdev->irq);
8634 } else if (ipr_debug)
8635 dev_info(&pdev->dev, "IRQ assigned: %d\n", pdev->irq);
8637 writel(IPR_PCII_IO_DEBUG_ACKNOWLEDGE, ioa_cfg->regs.sense_interrupt_reg32);
8638 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg);
8639 wait_event_timeout(ioa_cfg->msi_wait_q, ioa_cfg->msi_received, HZ);
8640 ipr_mask_and_clear_interrupts(ioa_cfg, ~IPR_PCII_IOA_TRANS_TO_OPER);
8642 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
8643 if (!ioa_cfg->msi_received) {
8644 /* MSI test failed */
8645 dev_info(&pdev->dev, "MSI test failed. Falling back to LSI.\n");
8647 } else if (ipr_debug)
8648 dev_info(&pdev->dev, "MSI test succeeded.\n");
8650 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
8652 free_irq(pdev->irq, ioa_cfg);
8660 * ipr_probe_ioa - Allocates memory and does first stage of initialization
8661 * @pdev: PCI device struct
8662 * @dev_id: PCI device id struct
8665 * 0 on success / non-zero on failure
8667 static int __devinit ipr_probe_ioa(struct pci_dev *pdev,
8668 const struct pci_device_id *dev_id)
8670 struct ipr_ioa_cfg *ioa_cfg;
8671 struct Scsi_Host *host;
8672 unsigned long ipr_regs_pci;
8673 void __iomem *ipr_regs;
8674 int rc = PCIBIOS_SUCCESSFUL;
8675 volatile u32 mask, uproc, interrupts;
8679 if ((rc = pci_enable_device(pdev))) {
8680 dev_err(&pdev->dev, "Cannot enable adapter\n");
8684 dev_info(&pdev->dev, "Found IOA with IRQ: %d\n", pdev->irq);
8686 host = scsi_host_alloc(&driver_template, sizeof(*ioa_cfg));
8689 dev_err(&pdev->dev, "call to scsi_host_alloc failed!\n");
8694 ioa_cfg = (struct ipr_ioa_cfg *)host->hostdata;
8695 memset(ioa_cfg, 0, sizeof(struct ipr_ioa_cfg));
8696 ata_host_init(&ioa_cfg->ata_host, &pdev->dev,
8697 sata_port_info.flags, &ipr_sata_ops);
8699 ioa_cfg->ipr_chip = ipr_get_chip_info(dev_id);
8701 if (!ioa_cfg->ipr_chip) {
8702 dev_err(&pdev->dev, "Unknown adapter chipset 0x%04X 0x%04X\n",
8703 dev_id->vendor, dev_id->device);
8704 goto out_scsi_host_put;
8707 /* set SIS 32 or SIS 64 */
8708 ioa_cfg->sis64 = ioa_cfg->ipr_chip->sis_type == IPR_SIS64 ? 1 : 0;
8709 ioa_cfg->chip_cfg = ioa_cfg->ipr_chip->cfg;
8711 if (ipr_transop_timeout)
8712 ioa_cfg->transop_timeout = ipr_transop_timeout;
8713 else if (dev_id->driver_data & IPR_USE_LONG_TRANSOP_TIMEOUT)
8714 ioa_cfg->transop_timeout = IPR_LONG_OPERATIONAL_TIMEOUT;
8716 ioa_cfg->transop_timeout = IPR_OPERATIONAL_TIMEOUT;
8718 ioa_cfg->revid = pdev->revision;
8720 ipr_regs_pci = pci_resource_start(pdev, 0);
8722 rc = pci_request_regions(pdev, IPR_NAME);
8725 "Couldn't register memory range of registers\n");
8726 goto out_scsi_host_put;
8729 ipr_regs = pci_ioremap_bar(pdev, 0);
8733 "Couldn't map memory range of registers\n");
8735 goto out_release_regions;
8738 ioa_cfg->hdw_dma_regs = ipr_regs;
8739 ioa_cfg->hdw_dma_regs_pci = ipr_regs_pci;
8740 ioa_cfg->ioa_mailbox = ioa_cfg->chip_cfg->mailbox + ipr_regs;
8742 ipr_init_ioa_cfg(ioa_cfg, host, pdev);
8744 pci_set_master(pdev);
8746 if (ioa_cfg->sis64) {
8747 rc = pci_set_dma_mask(pdev, DMA_BIT_MASK(64));
8749 dev_dbg(&pdev->dev, "Failed to set 64 bit PCI DMA mask\n");
8750 rc = pci_set_dma_mask(pdev, DMA_BIT_MASK(32));
8754 rc = pci_set_dma_mask(pdev, DMA_BIT_MASK(32));
8757 dev_err(&pdev->dev, "Failed to set PCI DMA mask\n");
8761 rc = pci_write_config_byte(pdev, PCI_CACHE_LINE_SIZE,
8762 ioa_cfg->chip_cfg->cache_line_size);
8764 if (rc != PCIBIOS_SUCCESSFUL) {
8765 dev_err(&pdev->dev, "Write of cache line size failed\n");
8770 /* Enable MSI style interrupts if they are supported. */
8771 if (ioa_cfg->ipr_chip->intr_type == IPR_USE_MSI && !pci_enable_msi(pdev)) {
8772 rc = ipr_test_msi(ioa_cfg, pdev);
8773 if (rc == -EOPNOTSUPP)
8774 pci_disable_msi(pdev);
8776 goto out_msi_disable;
8778 dev_info(&pdev->dev, "MSI enabled with IRQ: %d\n", pdev->irq);
8779 } else if (ipr_debug)
8780 dev_info(&pdev->dev, "Cannot enable MSI.\n");
8782 /* Save away PCI config space for use following IOA reset */
8783 rc = pci_save_state(pdev);
8785 if (rc != PCIBIOS_SUCCESSFUL) {
8786 dev_err(&pdev->dev, "Failed to save PCI config space\n");
8788 goto out_msi_disable;
8791 if ((rc = ipr_save_pcix_cmd_reg(ioa_cfg)))
8792 goto out_msi_disable;
8794 if ((rc = ipr_set_pcix_cmd_reg(ioa_cfg)))
8795 goto out_msi_disable;
8798 ioa_cfg->cfg_table_size = (sizeof(struct ipr_config_table_hdr64)
8799 + ((sizeof(struct ipr_config_table_entry64)
8800 * ioa_cfg->max_devs_supported)));
8802 ioa_cfg->cfg_table_size = (sizeof(struct ipr_config_table_hdr)
8803 + ((sizeof(struct ipr_config_table_entry)
8804 * ioa_cfg->max_devs_supported)));
8806 rc = ipr_alloc_mem(ioa_cfg);
8809 "Couldn't allocate enough memory for device driver!\n");
8810 goto out_msi_disable;
8814 * If HRRQ updated interrupt is not masked, or reset alert is set,
8815 * the card is in an unknown state and needs a hard reset
8817 mask = readl(ioa_cfg->regs.sense_interrupt_mask_reg32);
8818 interrupts = readl(ioa_cfg->regs.sense_interrupt_reg32);
8819 uproc = readl(ioa_cfg->regs.sense_uproc_interrupt_reg32);
8820 if ((mask & IPR_PCII_HRRQ_UPDATED) == 0 || (uproc & IPR_UPROCI_RESET_ALERT))
8821 ioa_cfg->needs_hard_reset = 1;
8822 if ((interrupts & IPR_PCII_ERROR_INTERRUPTS) || reset_devices)
8823 ioa_cfg->needs_hard_reset = 1;
8824 if (interrupts & IPR_PCII_IOA_UNIT_CHECKED)
8825 ioa_cfg->ioa_unit_checked = 1;
8827 ipr_mask_and_clear_interrupts(ioa_cfg, ~IPR_PCII_IOA_TRANS_TO_OPER);
8828 rc = request_irq(pdev->irq, ipr_isr,
8829 ioa_cfg->msi_received ? 0 : IRQF_SHARED,
8833 dev_err(&pdev->dev, "Couldn't register IRQ %d! rc=%d\n",
8838 if ((dev_id->driver_data & IPR_USE_PCI_WARM_RESET) ||
8839 (dev_id->device == PCI_DEVICE_ID_IBM_OBSIDIAN_E && !ioa_cfg->revid)) {
8840 ioa_cfg->needs_warm_reset = 1;
8841 ioa_cfg->reset = ipr_reset_slot_reset;
8843 ioa_cfg->reset = ipr_reset_start_bist;
8845 spin_lock(&ipr_driver_lock);
8846 list_add_tail(&ioa_cfg->queue, &ipr_ioa_head);
8847 spin_unlock(&ipr_driver_lock);
8854 ipr_free_mem(ioa_cfg);
8856 pci_disable_msi(pdev);
8859 out_release_regions:
8860 pci_release_regions(pdev);
8862 scsi_host_put(host);
8864 pci_disable_device(pdev);
8869 * ipr_scan_vsets - Scans for VSET devices
8870 * @ioa_cfg: ioa config struct
8872 * Description: Since the VSET resources do not follow SAM in that we can have
8873 * sparse LUNs with no LUN 0, we have to scan for these ourselves.
8878 static void ipr_scan_vsets(struct ipr_ioa_cfg *ioa_cfg)
8882 for (target = 0; target < IPR_MAX_NUM_TARGETS_PER_BUS; target++)
8883 for (lun = 0; lun < IPR_MAX_NUM_VSET_LUNS_PER_TARGET; lun++ )
8884 scsi_add_device(ioa_cfg->host, IPR_VSET_BUS, target, lun);
8888 * ipr_initiate_ioa_bringdown - Bring down an adapter
8889 * @ioa_cfg: ioa config struct
8890 * @shutdown_type: shutdown type
8892 * Description: This function will initiate bringing down the adapter.
8893 * This consists of issuing an IOA shutdown to the adapter
8894 * to flush the cache, and running BIST.
8895 * If the caller needs to wait on the completion of the reset,
8896 * the caller must sleep on the reset_wait_q.
8901 static void ipr_initiate_ioa_bringdown(struct ipr_ioa_cfg *ioa_cfg,
8902 enum ipr_shutdown_type shutdown_type)
8905 if (ioa_cfg->sdt_state == WAIT_FOR_DUMP)
8906 ioa_cfg->sdt_state = ABORT_DUMP;
8907 ioa_cfg->reset_retries = 0;
8908 ioa_cfg->in_ioa_bringdown = 1;
8909 ipr_initiate_ioa_reset(ioa_cfg, shutdown_type);
8914 * __ipr_remove - Remove a single adapter
8915 * @pdev: pci device struct
8917 * Adapter hot plug remove entry point.
8922 static void __ipr_remove(struct pci_dev *pdev)
8924 unsigned long host_lock_flags = 0;
8925 struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev);
8928 spin_lock_irqsave(ioa_cfg->host->host_lock, host_lock_flags);
8929 while(ioa_cfg->in_reset_reload) {
8930 spin_unlock_irqrestore(ioa_cfg->host->host_lock, host_lock_flags);
8931 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
8932 spin_lock_irqsave(ioa_cfg->host->host_lock, host_lock_flags);
8935 ipr_initiate_ioa_bringdown(ioa_cfg, IPR_SHUTDOWN_NORMAL);
8937 spin_unlock_irqrestore(ioa_cfg->host->host_lock, host_lock_flags);
8938 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
8939 flush_work_sync(&ioa_cfg->work_q);
8940 spin_lock_irqsave(ioa_cfg->host->host_lock, host_lock_flags);
8942 spin_lock(&ipr_driver_lock);
8943 list_del(&ioa_cfg->queue);
8944 spin_unlock(&ipr_driver_lock);
8946 if (ioa_cfg->sdt_state == ABORT_DUMP)
8947 ioa_cfg->sdt_state = WAIT_FOR_DUMP;
8948 spin_unlock_irqrestore(ioa_cfg->host->host_lock, host_lock_flags);
8950 ipr_free_all_resources(ioa_cfg);
8956 * ipr_remove - IOA hot plug remove entry point
8957 * @pdev: pci device struct
8959 * Adapter hot plug remove entry point.
8964 static void __devexit ipr_remove(struct pci_dev *pdev)
8966 struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev);
8970 ipr_remove_trace_file(&ioa_cfg->host->shost_dev.kobj,
8972 ipr_remove_dump_file(&ioa_cfg->host->shost_dev.kobj,
8974 scsi_remove_host(ioa_cfg->host);
8982 * ipr_probe - Adapter hot plug add entry point
8985 * 0 on success / non-zero on failure
8987 static int __devinit ipr_probe(struct pci_dev *pdev,
8988 const struct pci_device_id *dev_id)
8990 struct ipr_ioa_cfg *ioa_cfg;
8993 rc = ipr_probe_ioa(pdev, dev_id);
8998 ioa_cfg = pci_get_drvdata(pdev);
8999 rc = ipr_probe_ioa_part2(ioa_cfg);
9006 rc = scsi_add_host(ioa_cfg->host, &pdev->dev);
9013 rc = ipr_create_trace_file(&ioa_cfg->host->shost_dev.kobj,
9017 scsi_remove_host(ioa_cfg->host);
9022 rc = ipr_create_dump_file(&ioa_cfg->host->shost_dev.kobj,
9026 ipr_remove_trace_file(&ioa_cfg->host->shost_dev.kobj,
9028 scsi_remove_host(ioa_cfg->host);
9033 scsi_scan_host(ioa_cfg->host);
9034 ipr_scan_vsets(ioa_cfg);
9035 scsi_add_device(ioa_cfg->host, IPR_IOA_BUS, IPR_IOA_TARGET, IPR_IOA_LUN);
9036 ioa_cfg->allow_ml_add_del = 1;
9037 ioa_cfg->host->max_channel = IPR_VSET_BUS;
9038 schedule_work(&ioa_cfg->work_q);
9043 * ipr_shutdown - Shutdown handler.
9044 * @pdev: pci device struct
9046 * This function is invoked upon system shutdown/reboot. It will issue
9047 * an adapter shutdown to the adapter to flush the write cache.
9052 static void ipr_shutdown(struct pci_dev *pdev)
9054 struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev);
9055 unsigned long lock_flags = 0;
9057 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
9058 while(ioa_cfg->in_reset_reload) {
9059 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
9060 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
9061 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
9064 ipr_initiate_ioa_bringdown(ioa_cfg, IPR_SHUTDOWN_NORMAL);
9065 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
9066 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
9069 static struct pci_device_id ipr_pci_table[] __devinitdata = {
9070 { PCI_VENDOR_ID_MYLEX, PCI_DEVICE_ID_IBM_GEMSTONE,
9071 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_5702, 0, 0, 0 },
9072 { PCI_VENDOR_ID_MYLEX, PCI_DEVICE_ID_IBM_GEMSTONE,
9073 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_5703, 0, 0, 0 },
9074 { PCI_VENDOR_ID_MYLEX, PCI_DEVICE_ID_IBM_GEMSTONE,
9075 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_573D, 0, 0, 0 },
9076 { PCI_VENDOR_ID_MYLEX, PCI_DEVICE_ID_IBM_GEMSTONE,
9077 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_573E, 0, 0, 0 },
9078 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CITRINE,
9079 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_571B, 0, 0, 0 },
9080 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CITRINE,
9081 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572E, 0, 0, 0 },
9082 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CITRINE,
9083 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_571A, 0, 0, 0 },
9084 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CITRINE,
9085 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_575B, 0, 0,
9086 IPR_USE_LONG_TRANSOP_TIMEOUT },
9087 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_OBSIDIAN,
9088 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572A, 0, 0, 0 },
9089 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_OBSIDIAN,
9090 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572B, 0, 0,
9091 IPR_USE_LONG_TRANSOP_TIMEOUT },
9092 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_OBSIDIAN,
9093 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_575C, 0, 0,
9094 IPR_USE_LONG_TRANSOP_TIMEOUT },
9095 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN,
9096 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572A, 0, 0, 0 },
9097 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN,
9098 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572B, 0, 0,
9099 IPR_USE_LONG_TRANSOP_TIMEOUT},
9100 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN,
9101 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_575C, 0, 0,
9102 IPR_USE_LONG_TRANSOP_TIMEOUT },
9103 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN_E,
9104 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_574E, 0, 0,
9105 IPR_USE_LONG_TRANSOP_TIMEOUT },
9106 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN_E,
9107 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57B3, 0, 0, 0 },
9108 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN_E,
9109 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57CC, 0, 0, 0 },
9110 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN_E,
9111 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57B7, 0, 0,
9112 IPR_USE_LONG_TRANSOP_TIMEOUT | IPR_USE_PCI_WARM_RESET },
9113 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_SNIPE,
9114 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_2780, 0, 0, 0 },
9115 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_SCAMP,
9116 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_571E, 0, 0, 0 },
9117 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_SCAMP,
9118 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_571F, 0, 0,
9119 IPR_USE_LONG_TRANSOP_TIMEOUT },
9120 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_SCAMP,
9121 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572F, 0, 0,
9122 IPR_USE_LONG_TRANSOP_TIMEOUT },
9123 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_FPGA_E2,
9124 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57B5, 0, 0, 0 },
9125 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_FPGA_E2,
9126 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_574D, 0, 0, 0 },
9127 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_FPGA_E2,
9128 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57B2, 0, 0, 0 },
9129 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_FPGA_E2,
9130 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57C4, 0, 0, 0 },
9131 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_ASIC_E2,
9132 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57B4, 0, 0, 0 },
9133 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_ASIC_E2,
9134 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57B1, 0, 0, 0 },
9135 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_ASIC_E2,
9136 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57C6, 0, 0, 0 },
9137 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_ASIC_E2,
9138 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_575D, 0, 0, 0 },
9139 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_ASIC_E2,
9140 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57CE, 0, 0, 0 },
9143 MODULE_DEVICE_TABLE(pci, ipr_pci_table);
9145 static struct pci_error_handlers ipr_err_handler = {
9146 .error_detected = ipr_pci_error_detected,
9147 .slot_reset = ipr_pci_slot_reset,
9150 static struct pci_driver ipr_driver = {
9152 .id_table = ipr_pci_table,
9154 .remove = __devexit_p(ipr_remove),
9155 .shutdown = ipr_shutdown,
9156 .err_handler = &ipr_err_handler,
9160 * ipr_halt_done - Shutdown prepare completion
9165 static void ipr_halt_done(struct ipr_cmnd *ipr_cmd)
9167 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
9169 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
9173 * ipr_halt - Issue shutdown prepare to all adapters
9176 * NOTIFY_OK on success / NOTIFY_DONE on failure
9178 static int ipr_halt(struct notifier_block *nb, ulong event, void *buf)
9180 struct ipr_cmnd *ipr_cmd;
9181 struct ipr_ioa_cfg *ioa_cfg;
9182 unsigned long flags = 0;
9184 if (event != SYS_RESTART && event != SYS_HALT && event != SYS_POWER_OFF)
9187 spin_lock(&ipr_driver_lock);
9189 list_for_each_entry(ioa_cfg, &ipr_ioa_head, queue) {
9190 spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
9191 if (!ioa_cfg->allow_cmds) {
9192 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
9196 ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg);
9197 ipr_cmd->ioarcb.res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE);
9198 ipr_cmd->ioarcb.cmd_pkt.request_type = IPR_RQTYPE_IOACMD;
9199 ipr_cmd->ioarcb.cmd_pkt.cdb[0] = IPR_IOA_SHUTDOWN;
9200 ipr_cmd->ioarcb.cmd_pkt.cdb[1] = IPR_SHUTDOWN_PREPARE_FOR_NORMAL;
9202 ipr_do_req(ipr_cmd, ipr_halt_done, ipr_timeout, IPR_DEVICE_RESET_TIMEOUT);
9203 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
9205 spin_unlock(&ipr_driver_lock);
9210 static struct notifier_block ipr_notifier = {
9215 * ipr_init - Module entry point
9218 * 0 on success / negative value on failure
9220 static int __init ipr_init(void)
9222 ipr_info("IBM Power RAID SCSI Device Driver version: %s %s\n",
9223 IPR_DRIVER_VERSION, IPR_DRIVER_DATE);
9225 register_reboot_notifier(&ipr_notifier);
9226 return pci_register_driver(&ipr_driver);
9230 * ipr_exit - Module unload
9232 * Module unload entry point.
9237 static void __exit ipr_exit(void)
9239 unregister_reboot_notifier(&ipr_notifier);
9240 pci_unregister_driver(&ipr_driver);
9243 module_init(ipr_init);
9244 module_exit(ipr_exit);