2 * ipr.c -- driver for IBM Power Linux RAID adapters
4 * Written By: Brian King <brking@us.ibm.com>, IBM Corporation
6 * Copyright (C) 2003, 2004 IBM Corporation
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License as published by
10 * the Free Software Foundation; either version 2 of the License, or
11 * (at your option) any later version.
13 * This program is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 * GNU General Public License for more details.
18 * You should have received a copy of the GNU General Public License
19 * along with this program; if not, write to the Free Software
20 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
27 * This driver is used to control the following SCSI adapters:
29 * IBM iSeries: 5702, 5703, 2780, 5709, 570A, 570B
31 * IBM pSeries: PCI-X Dual Channel Ultra 320 SCSI RAID Adapter
32 * PCI-X Dual Channel Ultra 320 SCSI Adapter
33 * PCI-X Dual Channel Ultra 320 SCSI RAID Enablement Card
34 * Embedded SCSI adapter on p615 and p655 systems
36 * Supported Hardware Features:
37 * - Ultra 320 SCSI controller
38 * - PCI-X host interface
39 * - Embedded PowerPC RISC Processor and Hardware XOR DMA Engine
40 * - Non-Volatile Write Cache
41 * - Supports attachment of non-RAID disks, tape, and optical devices
42 * - RAID Levels 0, 5, 10
44 * - Background Parity Checking
45 * - Background Data Scrubbing
46 * - Ability to increase the capacity of an existing RAID 5 disk array
50 * - Tagged command queuing
51 * - Adapter microcode download
53 * - SCSI device hot plug
58 #include <linux/init.h>
59 #include <linux/types.h>
60 #include <linux/errno.h>
61 #include <linux/kernel.h>
62 #include <linux/slab.h>
63 #include <linux/ioport.h>
64 #include <linux/delay.h>
65 #include <linux/pci.h>
66 #include <linux/wait.h>
67 #include <linux/spinlock.h>
68 #include <linux/sched.h>
69 #include <linux/interrupt.h>
70 #include <linux/blkdev.h>
71 #include <linux/firmware.h>
72 #include <linux/module.h>
73 #include <linux/moduleparam.h>
74 #include <linux/libata.h>
75 #include <linux/hdreg.h>
76 #include <linux/reboot.h>
77 #include <linux/stringify.h>
80 #include <asm/processor.h>
81 #include <scsi/scsi.h>
82 #include <scsi/scsi_host.h>
83 #include <scsi/scsi_tcq.h>
84 #include <scsi/scsi_eh.h>
85 #include <scsi/scsi_cmnd.h>
91 static LIST_HEAD(ipr_ioa_head);
92 static unsigned int ipr_log_level = IPR_DEFAULT_LOG_LEVEL;
93 static unsigned int ipr_max_speed = 1;
94 static int ipr_testmode = 0;
95 static unsigned int ipr_fastfail = 0;
96 static unsigned int ipr_transop_timeout = 0;
97 static unsigned int ipr_debug = 0;
98 static unsigned int ipr_max_devs = IPR_DEFAULT_SIS64_DEVS;
99 static unsigned int ipr_dual_ioa_raid = 1;
100 static DEFINE_SPINLOCK(ipr_driver_lock);
102 /* This table describes the differences between DMA controller chips */
103 static const struct ipr_chip_cfg_t ipr_chip_cfg[] = {
104 { /* Gemstone, Citrine, Obsidian, and Obsidian-E */
106 .cache_line_size = 0x20,
108 .set_interrupt_mask_reg = 0x0022C,
109 .clr_interrupt_mask_reg = 0x00230,
110 .clr_interrupt_mask_reg32 = 0x00230,
111 .sense_interrupt_mask_reg = 0x0022C,
112 .sense_interrupt_mask_reg32 = 0x0022C,
113 .clr_interrupt_reg = 0x00228,
114 .clr_interrupt_reg32 = 0x00228,
115 .sense_interrupt_reg = 0x00224,
116 .sense_interrupt_reg32 = 0x00224,
117 .ioarrin_reg = 0x00404,
118 .sense_uproc_interrupt_reg = 0x00214,
119 .sense_uproc_interrupt_reg32 = 0x00214,
120 .set_uproc_interrupt_reg = 0x00214,
121 .set_uproc_interrupt_reg32 = 0x00214,
122 .clr_uproc_interrupt_reg = 0x00218,
123 .clr_uproc_interrupt_reg32 = 0x00218
126 { /* Snipe and Scamp */
128 .cache_line_size = 0x20,
130 .set_interrupt_mask_reg = 0x00288,
131 .clr_interrupt_mask_reg = 0x0028C,
132 .clr_interrupt_mask_reg32 = 0x0028C,
133 .sense_interrupt_mask_reg = 0x00288,
134 .sense_interrupt_mask_reg32 = 0x00288,
135 .clr_interrupt_reg = 0x00284,
136 .clr_interrupt_reg32 = 0x00284,
137 .sense_interrupt_reg = 0x00280,
138 .sense_interrupt_reg32 = 0x00280,
139 .ioarrin_reg = 0x00504,
140 .sense_uproc_interrupt_reg = 0x00290,
141 .sense_uproc_interrupt_reg32 = 0x00290,
142 .set_uproc_interrupt_reg = 0x00290,
143 .set_uproc_interrupt_reg32 = 0x00290,
144 .clr_uproc_interrupt_reg = 0x00294,
145 .clr_uproc_interrupt_reg32 = 0x00294
150 .cache_line_size = 0x20,
152 .set_interrupt_mask_reg = 0x00010,
153 .clr_interrupt_mask_reg = 0x00018,
154 .clr_interrupt_mask_reg32 = 0x0001C,
155 .sense_interrupt_mask_reg = 0x00010,
156 .sense_interrupt_mask_reg32 = 0x00014,
157 .clr_interrupt_reg = 0x00008,
158 .clr_interrupt_reg32 = 0x0000C,
159 .sense_interrupt_reg = 0x00000,
160 .sense_interrupt_reg32 = 0x00004,
161 .ioarrin_reg = 0x00070,
162 .sense_uproc_interrupt_reg = 0x00020,
163 .sense_uproc_interrupt_reg32 = 0x00024,
164 .set_uproc_interrupt_reg = 0x00020,
165 .set_uproc_interrupt_reg32 = 0x00024,
166 .clr_uproc_interrupt_reg = 0x00028,
167 .clr_uproc_interrupt_reg32 = 0x0002C,
168 .init_feedback_reg = 0x0005C,
169 .dump_addr_reg = 0x00064,
170 .dump_data_reg = 0x00068,
171 .endian_swap_reg = 0x00084
176 static const struct ipr_chip_t ipr_chip[] = {
177 { PCI_VENDOR_ID_MYLEX, PCI_DEVICE_ID_IBM_GEMSTONE, IPR_USE_LSI, IPR_SIS32, &ipr_chip_cfg[0] },
178 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CITRINE, IPR_USE_LSI, IPR_SIS32, &ipr_chip_cfg[0] },
179 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_OBSIDIAN, IPR_USE_LSI, IPR_SIS32, &ipr_chip_cfg[0] },
180 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN, IPR_USE_LSI, IPR_SIS32, &ipr_chip_cfg[0] },
181 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN_E, IPR_USE_MSI, IPR_SIS32, &ipr_chip_cfg[0] },
182 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_SNIPE, IPR_USE_LSI, IPR_SIS32, &ipr_chip_cfg[1] },
183 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_SCAMP, IPR_USE_LSI, IPR_SIS32, &ipr_chip_cfg[1] },
184 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_FPGA_E2, IPR_USE_MSI, IPR_SIS64, &ipr_chip_cfg[2] },
185 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_ASIC_E2, IPR_USE_MSI, IPR_SIS64, &ipr_chip_cfg[2] }
188 static int ipr_max_bus_speeds [] = {
189 IPR_80MBs_SCSI_RATE, IPR_U160_SCSI_RATE, IPR_U320_SCSI_RATE
192 MODULE_AUTHOR("Brian King <brking@us.ibm.com>");
193 MODULE_DESCRIPTION("IBM Power RAID SCSI Adapter Driver");
194 module_param_named(max_speed, ipr_max_speed, uint, 0);
195 MODULE_PARM_DESC(max_speed, "Maximum bus speed (0-2). Default: 1=U160. Speeds: 0=80 MB/s, 1=U160, 2=U320");
196 module_param_named(log_level, ipr_log_level, uint, 0);
197 MODULE_PARM_DESC(log_level, "Set to 0 - 4 for increasing verbosity of device driver");
198 module_param_named(testmode, ipr_testmode, int, 0);
199 MODULE_PARM_DESC(testmode, "DANGEROUS!!! Allows unsupported configurations");
200 module_param_named(fastfail, ipr_fastfail, int, S_IRUGO | S_IWUSR);
201 MODULE_PARM_DESC(fastfail, "Reduce timeouts and retries");
202 module_param_named(transop_timeout, ipr_transop_timeout, int, 0);
203 MODULE_PARM_DESC(transop_timeout, "Time in seconds to wait for adapter to come operational (default: 300)");
204 module_param_named(debug, ipr_debug, int, S_IRUGO | S_IWUSR);
205 MODULE_PARM_DESC(debug, "Enable device driver debugging logging. Set to 1 to enable. (default: 0)");
206 module_param_named(dual_ioa_raid, ipr_dual_ioa_raid, int, 0);
207 MODULE_PARM_DESC(dual_ioa_raid, "Enable dual adapter RAID support. Set to 1 to enable. (default: 1)");
208 module_param_named(max_devs, ipr_max_devs, int, 0);
209 MODULE_PARM_DESC(max_devs, "Specify the maximum number of physical devices. "
210 "[Default=" __stringify(IPR_DEFAULT_SIS64_DEVS) "]");
211 MODULE_LICENSE("GPL");
212 MODULE_VERSION(IPR_DRIVER_VERSION);
214 /* A constant array of IOASCs/URCs/Error Messages */
216 struct ipr_error_table_t ipr_error_table[] = {
217 {0x00000000, 1, IPR_DEFAULT_LOG_LEVEL,
218 "8155: An unknown error was received"},
220 "Soft underlength error"},
222 "Command to be cancelled not found"},
224 "Qualified success"},
225 {0x01080000, 1, IPR_DEFAULT_LOG_LEVEL,
226 "FFFE: Soft device bus error recovered by the IOA"},
227 {0x01088100, 0, IPR_DEFAULT_LOG_LEVEL,
228 "4101: Soft device bus fabric error"},
229 {0x01100100, 0, IPR_DEFAULT_LOG_LEVEL,
230 "FFFC: Logical block guard error recovered by the device"},
231 {0x01100300, 0, IPR_DEFAULT_LOG_LEVEL,
232 "FFFC: Logical block reference tag error recovered by the device"},
233 {0x01108300, 0, IPR_DEFAULT_LOG_LEVEL,
234 "4171: Recovered scatter list tag / sequence number error"},
235 {0x01109000, 0, IPR_DEFAULT_LOG_LEVEL,
236 "FF3D: Recovered logical block CRC error on IOA to Host transfer"},
237 {0x01109200, 0, IPR_DEFAULT_LOG_LEVEL,
238 "4171: Recovered logical block sequence number error on IOA to Host transfer"},
239 {0x0110A000, 0, IPR_DEFAULT_LOG_LEVEL,
240 "FFFD: Recovered logical block reference tag error detected by the IOA"},
241 {0x0110A100, 0, IPR_DEFAULT_LOG_LEVEL,
242 "FFFD: Logical block guard error recovered by the IOA"},
243 {0x01170600, 0, IPR_DEFAULT_LOG_LEVEL,
244 "FFF9: Device sector reassign successful"},
245 {0x01170900, 0, IPR_DEFAULT_LOG_LEVEL,
246 "FFF7: Media error recovered by device rewrite procedures"},
247 {0x01180200, 0, IPR_DEFAULT_LOG_LEVEL,
248 "7001: IOA sector reassignment successful"},
249 {0x01180500, 0, IPR_DEFAULT_LOG_LEVEL,
250 "FFF9: Soft media error. Sector reassignment recommended"},
251 {0x01180600, 0, IPR_DEFAULT_LOG_LEVEL,
252 "FFF7: Media error recovered by IOA rewrite procedures"},
253 {0x01418000, 0, IPR_DEFAULT_LOG_LEVEL,
254 "FF3D: Soft PCI bus error recovered by the IOA"},
255 {0x01440000, 1, IPR_DEFAULT_LOG_LEVEL,
256 "FFF6: Device hardware error recovered by the IOA"},
257 {0x01448100, 0, IPR_DEFAULT_LOG_LEVEL,
258 "FFF6: Device hardware error recovered by the device"},
259 {0x01448200, 1, IPR_DEFAULT_LOG_LEVEL,
260 "FF3D: Soft IOA error recovered by the IOA"},
261 {0x01448300, 0, IPR_DEFAULT_LOG_LEVEL,
262 "FFFA: Undefined device response recovered by the IOA"},
263 {0x014A0000, 1, IPR_DEFAULT_LOG_LEVEL,
264 "FFF6: Device bus error, message or command phase"},
265 {0x014A8000, 0, IPR_DEFAULT_LOG_LEVEL,
266 "FFFE: Task Management Function failed"},
267 {0x015D0000, 0, IPR_DEFAULT_LOG_LEVEL,
268 "FFF6: Failure prediction threshold exceeded"},
269 {0x015D9200, 0, IPR_DEFAULT_LOG_LEVEL,
270 "8009: Impending cache battery pack failure"},
272 "34FF: Disk device format in progress"},
273 {0x02048000, 0, IPR_DEFAULT_LOG_LEVEL,
274 "9070: IOA requested reset"},
276 "Synchronization required"},
278 "No ready, IOA shutdown"},
280 "Not ready, IOA has been shutdown"},
281 {0x02670100, 0, IPR_DEFAULT_LOG_LEVEL,
282 "3020: Storage subsystem configuration error"},
284 "FFF5: Medium error, data unreadable, recommend reassign"},
286 "7000: Medium error, data unreadable, do not reassign"},
287 {0x03310000, 0, IPR_DEFAULT_LOG_LEVEL,
288 "FFF3: Disk media format bad"},
289 {0x04050000, 0, IPR_DEFAULT_LOG_LEVEL,
290 "3002: Addressed device failed to respond to selection"},
291 {0x04080000, 1, IPR_DEFAULT_LOG_LEVEL,
292 "3100: Device bus error"},
293 {0x04080100, 0, IPR_DEFAULT_LOG_LEVEL,
294 "3109: IOA timed out a device command"},
296 "3120: SCSI bus is not operational"},
297 {0x04088100, 0, IPR_DEFAULT_LOG_LEVEL,
298 "4100: Hard device bus fabric error"},
299 {0x04100100, 0, IPR_DEFAULT_LOG_LEVEL,
300 "310C: Logical block guard error detected by the device"},
301 {0x04100300, 0, IPR_DEFAULT_LOG_LEVEL,
302 "310C: Logical block reference tag error detected by the device"},
303 {0x04108300, 1, IPR_DEFAULT_LOG_LEVEL,
304 "4170: Scatter list tag / sequence number error"},
305 {0x04109000, 1, IPR_DEFAULT_LOG_LEVEL,
306 "8150: Logical block CRC error on IOA to Host transfer"},
307 {0x04109200, 1, IPR_DEFAULT_LOG_LEVEL,
308 "4170: Logical block sequence number error on IOA to Host transfer"},
309 {0x0410A000, 0, IPR_DEFAULT_LOG_LEVEL,
310 "310D: Logical block reference tag error detected by the IOA"},
311 {0x0410A100, 0, IPR_DEFAULT_LOG_LEVEL,
312 "310D: Logical block guard error detected by the IOA"},
313 {0x04118000, 0, IPR_DEFAULT_LOG_LEVEL,
314 "9000: IOA reserved area data check"},
315 {0x04118100, 0, IPR_DEFAULT_LOG_LEVEL,
316 "9001: IOA reserved area invalid data pattern"},
317 {0x04118200, 0, IPR_DEFAULT_LOG_LEVEL,
318 "9002: IOA reserved area LRC error"},
319 {0x04118300, 1, IPR_DEFAULT_LOG_LEVEL,
320 "Hardware Error, IOA metadata access error"},
321 {0x04320000, 0, IPR_DEFAULT_LOG_LEVEL,
322 "102E: Out of alternate sectors for disk storage"},
323 {0x04330000, 1, IPR_DEFAULT_LOG_LEVEL,
324 "FFF4: Data transfer underlength error"},
325 {0x04338000, 1, IPR_DEFAULT_LOG_LEVEL,
326 "FFF4: Data transfer overlength error"},
327 {0x043E0100, 0, IPR_DEFAULT_LOG_LEVEL,
328 "3400: Logical unit failure"},
329 {0x04408500, 0, IPR_DEFAULT_LOG_LEVEL,
330 "FFF4: Device microcode is corrupt"},
331 {0x04418000, 1, IPR_DEFAULT_LOG_LEVEL,
332 "8150: PCI bus error"},
334 "Unsupported device bus message received"},
335 {0x04440000, 1, IPR_DEFAULT_LOG_LEVEL,
336 "FFF4: Disk device problem"},
337 {0x04448200, 1, IPR_DEFAULT_LOG_LEVEL,
338 "8150: Permanent IOA failure"},
339 {0x04448300, 0, IPR_DEFAULT_LOG_LEVEL,
340 "3010: Disk device returned wrong response to IOA"},
341 {0x04448400, 0, IPR_DEFAULT_LOG_LEVEL,
342 "8151: IOA microcode error"},
344 "Device bus status error"},
345 {0x04448600, 0, IPR_DEFAULT_LOG_LEVEL,
346 "8157: IOA error requiring IOA reset to recover"},
348 "ATA device status error"},
350 "Message reject received from the device"},
351 {0x04449200, 0, IPR_DEFAULT_LOG_LEVEL,
352 "8008: A permanent cache battery pack failure occurred"},
353 {0x0444A000, 0, IPR_DEFAULT_LOG_LEVEL,
354 "9090: Disk unit has been modified after the last known status"},
355 {0x0444A200, 0, IPR_DEFAULT_LOG_LEVEL,
356 "9081: IOA detected device error"},
357 {0x0444A300, 0, IPR_DEFAULT_LOG_LEVEL,
358 "9082: IOA detected device error"},
359 {0x044A0000, 1, IPR_DEFAULT_LOG_LEVEL,
360 "3110: Device bus error, message or command phase"},
361 {0x044A8000, 1, IPR_DEFAULT_LOG_LEVEL,
362 "3110: SAS Command / Task Management Function failed"},
363 {0x04670400, 0, IPR_DEFAULT_LOG_LEVEL,
364 "9091: Incorrect hardware configuration change has been detected"},
365 {0x04678000, 0, IPR_DEFAULT_LOG_LEVEL,
366 "9073: Invalid multi-adapter configuration"},
367 {0x04678100, 0, IPR_DEFAULT_LOG_LEVEL,
368 "4010: Incorrect connection between cascaded expanders"},
369 {0x04678200, 0, IPR_DEFAULT_LOG_LEVEL,
370 "4020: Connections exceed IOA design limits"},
371 {0x04678300, 0, IPR_DEFAULT_LOG_LEVEL,
372 "4030: Incorrect multipath connection"},
373 {0x04679000, 0, IPR_DEFAULT_LOG_LEVEL,
374 "4110: Unsupported enclosure function"},
375 {0x046E0000, 0, IPR_DEFAULT_LOG_LEVEL,
376 "FFF4: Command to logical unit failed"},
378 "Illegal request, invalid request type or request packet"},
380 "Illegal request, invalid resource handle"},
382 "Illegal request, commands not allowed to this device"},
384 "Illegal request, command not allowed to a secondary adapter"},
386 "Illegal request, command not allowed to a non-optimized resource"},
388 "Illegal request, invalid field in parameter list"},
390 "Illegal request, parameter not supported"},
392 "Illegal request, parameter value invalid"},
394 "Illegal request, command sequence error"},
396 "Illegal request, dual adapter support not enabled"},
397 {0x06040500, 0, IPR_DEFAULT_LOG_LEVEL,
398 "9031: Array protection temporarily suspended, protection resuming"},
399 {0x06040600, 0, IPR_DEFAULT_LOG_LEVEL,
400 "9040: Array protection temporarily suspended, protection resuming"},
401 {0x06288000, 0, IPR_DEFAULT_LOG_LEVEL,
402 "3140: Device bus not ready to ready transition"},
403 {0x06290000, 0, IPR_DEFAULT_LOG_LEVEL,
404 "FFFB: SCSI bus was reset"},
406 "FFFE: SCSI bus transition to single ended"},
408 "FFFE: SCSI bus transition to LVD"},
409 {0x06298000, 0, IPR_DEFAULT_LOG_LEVEL,
410 "FFFB: SCSI bus was reset by another initiator"},
411 {0x063F0300, 0, IPR_DEFAULT_LOG_LEVEL,
412 "3029: A device replacement has occurred"},
413 {0x064C8000, 0, IPR_DEFAULT_LOG_LEVEL,
414 "9051: IOA cache data exists for a missing or failed device"},
415 {0x064C8100, 0, IPR_DEFAULT_LOG_LEVEL,
416 "9055: Auxiliary cache IOA contains cache data needed by the primary IOA"},
417 {0x06670100, 0, IPR_DEFAULT_LOG_LEVEL,
418 "9025: Disk unit is not supported at its physical location"},
419 {0x06670600, 0, IPR_DEFAULT_LOG_LEVEL,
420 "3020: IOA detected a SCSI bus configuration error"},
421 {0x06678000, 0, IPR_DEFAULT_LOG_LEVEL,
422 "3150: SCSI bus configuration error"},
423 {0x06678100, 0, IPR_DEFAULT_LOG_LEVEL,
424 "9074: Asymmetric advanced function disk configuration"},
425 {0x06678300, 0, IPR_DEFAULT_LOG_LEVEL,
426 "4040: Incomplete multipath connection between IOA and enclosure"},
427 {0x06678400, 0, IPR_DEFAULT_LOG_LEVEL,
428 "4041: Incomplete multipath connection between enclosure and device"},
429 {0x06678500, 0, IPR_DEFAULT_LOG_LEVEL,
430 "9075: Incomplete multipath connection between IOA and remote IOA"},
431 {0x06678600, 0, IPR_DEFAULT_LOG_LEVEL,
432 "9076: Configuration error, missing remote IOA"},
433 {0x06679100, 0, IPR_DEFAULT_LOG_LEVEL,
434 "4050: Enclosure does not support a required multipath function"},
435 {0x06690000, 0, IPR_DEFAULT_LOG_LEVEL,
436 "4070: Logically bad block written on device"},
437 {0x06690200, 0, IPR_DEFAULT_LOG_LEVEL,
438 "9041: Array protection temporarily suspended"},
439 {0x06698200, 0, IPR_DEFAULT_LOG_LEVEL,
440 "9042: Corrupt array parity detected on specified device"},
441 {0x066B0200, 0, IPR_DEFAULT_LOG_LEVEL,
442 "9030: Array no longer protected due to missing or failed disk unit"},
443 {0x066B8000, 0, IPR_DEFAULT_LOG_LEVEL,
444 "9071: Link operational transition"},
445 {0x066B8100, 0, IPR_DEFAULT_LOG_LEVEL,
446 "9072: Link not operational transition"},
447 {0x066B8200, 0, IPR_DEFAULT_LOG_LEVEL,
448 "9032: Array exposed but still protected"},
449 {0x066B8300, 0, IPR_DEFAULT_LOG_LEVEL + 1,
450 "70DD: Device forced failed by disrupt device command"},
451 {0x066B9100, 0, IPR_DEFAULT_LOG_LEVEL,
452 "4061: Multipath redundancy level got better"},
453 {0x066B9200, 0, IPR_DEFAULT_LOG_LEVEL,
454 "4060: Multipath redundancy level got worse"},
456 "Failure due to other device"},
457 {0x07278000, 0, IPR_DEFAULT_LOG_LEVEL,
458 "9008: IOA does not support functions expected by devices"},
459 {0x07278100, 0, IPR_DEFAULT_LOG_LEVEL,
460 "9010: Cache data associated with attached devices cannot be found"},
461 {0x07278200, 0, IPR_DEFAULT_LOG_LEVEL,
462 "9011: Cache data belongs to devices other than those attached"},
463 {0x07278400, 0, IPR_DEFAULT_LOG_LEVEL,
464 "9020: Array missing 2 or more devices with only 1 device present"},
465 {0x07278500, 0, IPR_DEFAULT_LOG_LEVEL,
466 "9021: Array missing 2 or more devices with 2 or more devices present"},
467 {0x07278600, 0, IPR_DEFAULT_LOG_LEVEL,
468 "9022: Exposed array is missing a required device"},
469 {0x07278700, 0, IPR_DEFAULT_LOG_LEVEL,
470 "9023: Array member(s) not at required physical locations"},
471 {0x07278800, 0, IPR_DEFAULT_LOG_LEVEL,
472 "9024: Array not functional due to present hardware configuration"},
473 {0x07278900, 0, IPR_DEFAULT_LOG_LEVEL,
474 "9026: Array not functional due to present hardware configuration"},
475 {0x07278A00, 0, IPR_DEFAULT_LOG_LEVEL,
476 "9027: Array is missing a device and parity is out of sync"},
477 {0x07278B00, 0, IPR_DEFAULT_LOG_LEVEL,
478 "9028: Maximum number of arrays already exist"},
479 {0x07278C00, 0, IPR_DEFAULT_LOG_LEVEL,
480 "9050: Required cache data cannot be located for a disk unit"},
481 {0x07278D00, 0, IPR_DEFAULT_LOG_LEVEL,
482 "9052: Cache data exists for a device that has been modified"},
483 {0x07278F00, 0, IPR_DEFAULT_LOG_LEVEL,
484 "9054: IOA resources not available due to previous problems"},
485 {0x07279100, 0, IPR_DEFAULT_LOG_LEVEL,
486 "9092: Disk unit requires initialization before use"},
487 {0x07279200, 0, IPR_DEFAULT_LOG_LEVEL,
488 "9029: Incorrect hardware configuration change has been detected"},
489 {0x07279600, 0, IPR_DEFAULT_LOG_LEVEL,
490 "9060: One or more disk pairs are missing from an array"},
491 {0x07279700, 0, IPR_DEFAULT_LOG_LEVEL,
492 "9061: One or more disks are missing from an array"},
493 {0x07279800, 0, IPR_DEFAULT_LOG_LEVEL,
494 "9062: One or more disks are missing from an array"},
495 {0x07279900, 0, IPR_DEFAULT_LOG_LEVEL,
496 "9063: Maximum number of functional arrays has been exceeded"},
498 "Aborted command, invalid descriptor"},
500 "Command terminated by host"}
503 static const struct ipr_ses_table_entry ipr_ses_table[] = {
504 { "2104-DL1 ", "XXXXXXXXXXXXXXXX", 80 },
505 { "2104-TL1 ", "XXXXXXXXXXXXXXXX", 80 },
506 { "HSBP07M P U2SCSI", "XXXXXXXXXXXXXXXX", 80 }, /* Hidive 7 slot */
507 { "HSBP05M P U2SCSI", "XXXXXXXXXXXXXXXX", 80 }, /* Hidive 5 slot */
508 { "HSBP05M S U2SCSI", "XXXXXXXXXXXXXXXX", 80 }, /* Bowtie */
509 { "HSBP06E ASU2SCSI", "XXXXXXXXXXXXXXXX", 80 }, /* MartinFenning */
510 { "2104-DU3 ", "XXXXXXXXXXXXXXXX", 160 },
511 { "2104-TU3 ", "XXXXXXXXXXXXXXXX", 160 },
512 { "HSBP04C RSU2SCSI", "XXXXXXX*XXXXXXXX", 160 },
513 { "HSBP06E RSU2SCSI", "XXXXXXX*XXXXXXXX", 160 },
514 { "St V1S2 ", "XXXXXXXXXXXXXXXX", 160 },
515 { "HSBPD4M PU3SCSI", "XXXXXXX*XXXXXXXX", 160 },
516 { "VSBPD1H U3SCSI", "XXXXXXX*XXXXXXXX", 160 }
520 * Function Prototypes
522 static int ipr_reset_alert(struct ipr_cmnd *);
523 static void ipr_process_ccn(struct ipr_cmnd *);
524 static void ipr_process_error(struct ipr_cmnd *);
525 static void ipr_reset_ioa_job(struct ipr_cmnd *);
526 static void ipr_initiate_ioa_reset(struct ipr_ioa_cfg *,
527 enum ipr_shutdown_type);
529 #ifdef CONFIG_SCSI_IPR_TRACE
531 * ipr_trc_hook - Add a trace entry to the driver trace
532 * @ipr_cmd: ipr command struct
534 * @add_data: additional data
539 static void ipr_trc_hook(struct ipr_cmnd *ipr_cmd,
540 u8 type, u32 add_data)
542 struct ipr_trace_entry *trace_entry;
543 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
545 trace_entry = &ioa_cfg->trace[ioa_cfg->trace_index++];
546 trace_entry->time = jiffies;
547 trace_entry->op_code = ipr_cmd->ioarcb.cmd_pkt.cdb[0];
548 trace_entry->type = type;
549 if (ipr_cmd->ioa_cfg->sis64)
550 trace_entry->ata_op_code = ipr_cmd->i.ata_ioadl.regs.command;
552 trace_entry->ata_op_code = ipr_cmd->ioarcb.u.add_data.u.regs.command;
553 trace_entry->cmd_index = ipr_cmd->cmd_index & 0xff;
554 trace_entry->res_handle = ipr_cmd->ioarcb.res_handle;
555 trace_entry->u.add_data = add_data;
558 #define ipr_trc_hook(ipr_cmd, type, add_data) do { } while(0)
562 * ipr_reinit_ipr_cmnd - Re-initialize an IPR Cmnd block for reuse
563 * @ipr_cmd: ipr command struct
568 static void ipr_reinit_ipr_cmnd(struct ipr_cmnd *ipr_cmd)
570 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
571 struct ipr_ioasa *ioasa = &ipr_cmd->s.ioasa;
572 struct ipr_ioasa64 *ioasa64 = &ipr_cmd->s.ioasa64;
573 dma_addr_t dma_addr = ipr_cmd->dma_addr;
575 memset(&ioarcb->cmd_pkt, 0, sizeof(struct ipr_cmd_pkt));
576 ioarcb->data_transfer_length = 0;
577 ioarcb->read_data_transfer_length = 0;
578 ioarcb->ioadl_len = 0;
579 ioarcb->read_ioadl_len = 0;
581 if (ipr_cmd->ioa_cfg->sis64) {
582 ioarcb->u.sis64_addr_data.data_ioadl_addr =
583 cpu_to_be64(dma_addr + offsetof(struct ipr_cmnd, i.ioadl64));
584 ioasa64->u.gata.status = 0;
586 ioarcb->write_ioadl_addr =
587 cpu_to_be32(dma_addr + offsetof(struct ipr_cmnd, i.ioadl));
588 ioarcb->read_ioadl_addr = ioarcb->write_ioadl_addr;
589 ioasa->u.gata.status = 0;
592 ioasa->hdr.ioasc = 0;
593 ioasa->hdr.residual_data_len = 0;
594 ipr_cmd->scsi_cmd = NULL;
596 ipr_cmd->sense_buffer[0] = 0;
597 ipr_cmd->dma_use_sg = 0;
601 * ipr_init_ipr_cmnd - Initialize an IPR Cmnd block
602 * @ipr_cmd: ipr command struct
607 static void ipr_init_ipr_cmnd(struct ipr_cmnd *ipr_cmd)
609 ipr_reinit_ipr_cmnd(ipr_cmd);
610 ipr_cmd->u.scratch = 0;
611 ipr_cmd->sibling = NULL;
612 init_timer(&ipr_cmd->timer);
616 * ipr_get_free_ipr_cmnd - Get a free IPR Cmnd block
617 * @ioa_cfg: ioa config struct
620 * pointer to ipr command struct
623 struct ipr_cmnd *ipr_get_free_ipr_cmnd(struct ipr_ioa_cfg *ioa_cfg)
625 struct ipr_cmnd *ipr_cmd;
627 ipr_cmd = list_entry(ioa_cfg->free_q.next, struct ipr_cmnd, queue);
628 list_del(&ipr_cmd->queue);
629 ipr_init_ipr_cmnd(ipr_cmd);
635 * ipr_mask_and_clear_interrupts - Mask all and clear specified interrupts
636 * @ioa_cfg: ioa config struct
637 * @clr_ints: interrupts to clear
639 * This function masks all interrupts on the adapter, then clears the
640 * interrupts specified in the mask
645 static void ipr_mask_and_clear_interrupts(struct ipr_ioa_cfg *ioa_cfg,
648 volatile u32 int_reg;
650 /* Stop new interrupts */
651 ioa_cfg->allow_interrupts = 0;
653 /* Set interrupt mask to stop all new interrupts */
655 writeq(~0, ioa_cfg->regs.set_interrupt_mask_reg);
657 writel(~0, ioa_cfg->regs.set_interrupt_mask_reg);
659 /* Clear any pending interrupts */
661 writel(~0, ioa_cfg->regs.clr_interrupt_reg);
662 writel(clr_ints, ioa_cfg->regs.clr_interrupt_reg32);
663 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg);
667 * ipr_save_pcix_cmd_reg - Save PCI-X command register
668 * @ioa_cfg: ioa config struct
671 * 0 on success / -EIO on failure
673 static int ipr_save_pcix_cmd_reg(struct ipr_ioa_cfg *ioa_cfg)
675 int pcix_cmd_reg = pci_find_capability(ioa_cfg->pdev, PCI_CAP_ID_PCIX);
677 if (pcix_cmd_reg == 0)
680 if (pci_read_config_word(ioa_cfg->pdev, pcix_cmd_reg + PCI_X_CMD,
681 &ioa_cfg->saved_pcix_cmd_reg) != PCIBIOS_SUCCESSFUL) {
682 dev_err(&ioa_cfg->pdev->dev, "Failed to save PCI-X command register\n");
686 ioa_cfg->saved_pcix_cmd_reg |= PCI_X_CMD_DPERR_E | PCI_X_CMD_ERO;
691 * ipr_set_pcix_cmd_reg - Setup PCI-X command register
692 * @ioa_cfg: ioa config struct
695 * 0 on success / -EIO on failure
697 static int ipr_set_pcix_cmd_reg(struct ipr_ioa_cfg *ioa_cfg)
699 int pcix_cmd_reg = pci_find_capability(ioa_cfg->pdev, PCI_CAP_ID_PCIX);
702 if (pci_write_config_word(ioa_cfg->pdev, pcix_cmd_reg + PCI_X_CMD,
703 ioa_cfg->saved_pcix_cmd_reg) != PCIBIOS_SUCCESSFUL) {
704 dev_err(&ioa_cfg->pdev->dev, "Failed to setup PCI-X command register\n");
713 * ipr_sata_eh_done - done function for aborted SATA commands
714 * @ipr_cmd: ipr command struct
716 * This function is invoked for ops generated to SATA
717 * devices which are being aborted.
722 static void ipr_sata_eh_done(struct ipr_cmnd *ipr_cmd)
724 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
725 struct ata_queued_cmd *qc = ipr_cmd->qc;
726 struct ipr_sata_port *sata_port = qc->ap->private_data;
728 qc->err_mask |= AC_ERR_OTHER;
729 sata_port->ioasa.status |= ATA_BUSY;
730 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
735 * ipr_scsi_eh_done - mid-layer done function for aborted ops
736 * @ipr_cmd: ipr command struct
738 * This function is invoked by the interrupt handler for
739 * ops generated by the SCSI mid-layer which are being aborted.
744 static void ipr_scsi_eh_done(struct ipr_cmnd *ipr_cmd)
746 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
747 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd;
749 scsi_cmd->result |= (DID_ERROR << 16);
751 scsi_dma_unmap(ipr_cmd->scsi_cmd);
752 scsi_cmd->scsi_done(scsi_cmd);
753 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
757 * ipr_fail_all_ops - Fails all outstanding ops.
758 * @ioa_cfg: ioa config struct
760 * This function fails all outstanding ops.
765 static void ipr_fail_all_ops(struct ipr_ioa_cfg *ioa_cfg)
767 struct ipr_cmnd *ipr_cmd, *temp;
770 list_for_each_entry_safe(ipr_cmd, temp, &ioa_cfg->pending_q, queue) {
771 list_del(&ipr_cmd->queue);
773 ipr_cmd->s.ioasa.hdr.ioasc = cpu_to_be32(IPR_IOASC_IOA_WAS_RESET);
774 ipr_cmd->s.ioasa.hdr.ilid = cpu_to_be32(IPR_DRIVER_ILID);
776 if (ipr_cmd->scsi_cmd)
777 ipr_cmd->done = ipr_scsi_eh_done;
778 else if (ipr_cmd->qc)
779 ipr_cmd->done = ipr_sata_eh_done;
781 ipr_trc_hook(ipr_cmd, IPR_TRACE_FINISH, IPR_IOASC_IOA_WAS_RESET);
782 del_timer(&ipr_cmd->timer);
783 ipr_cmd->done(ipr_cmd);
790 * ipr_send_command - Send driver initiated requests.
791 * @ipr_cmd: ipr command struct
793 * This function sends a command to the adapter using the correct write call.
794 * In the case of sis64, calculate the ioarcb size required. Then or in the
800 static void ipr_send_command(struct ipr_cmnd *ipr_cmd)
802 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
803 dma_addr_t send_dma_addr = ipr_cmd->dma_addr;
805 if (ioa_cfg->sis64) {
806 /* The default size is 256 bytes */
807 send_dma_addr |= 0x1;
809 /* If the number of ioadls * size of ioadl > 128 bytes,
810 then use a 512 byte ioarcb */
811 if (ipr_cmd->dma_use_sg * sizeof(struct ipr_ioadl64_desc) > 128 )
812 send_dma_addr |= 0x4;
813 writeq(send_dma_addr, ioa_cfg->regs.ioarrin_reg);
815 writel(send_dma_addr, ioa_cfg->regs.ioarrin_reg);
819 * ipr_do_req - Send driver initiated requests.
820 * @ipr_cmd: ipr command struct
821 * @done: done function
822 * @timeout_func: timeout function
823 * @timeout: timeout value
825 * This function sends the specified command to the adapter with the
826 * timeout given. The done function is invoked on command completion.
831 static void ipr_do_req(struct ipr_cmnd *ipr_cmd,
832 void (*done) (struct ipr_cmnd *),
833 void (*timeout_func) (struct ipr_cmnd *), u32 timeout)
835 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
837 list_add_tail(&ipr_cmd->queue, &ioa_cfg->pending_q);
839 ipr_cmd->done = done;
841 ipr_cmd->timer.data = (unsigned long) ipr_cmd;
842 ipr_cmd->timer.expires = jiffies + timeout;
843 ipr_cmd->timer.function = (void (*)(unsigned long))timeout_func;
845 add_timer(&ipr_cmd->timer);
847 ipr_trc_hook(ipr_cmd, IPR_TRACE_START, 0);
851 ipr_send_command(ipr_cmd);
855 * ipr_internal_cmd_done - Op done function for an internally generated op.
856 * @ipr_cmd: ipr command struct
858 * This function is the op done function for an internally generated,
859 * blocking op. It simply wakes the sleeping thread.
864 static void ipr_internal_cmd_done(struct ipr_cmnd *ipr_cmd)
866 if (ipr_cmd->sibling)
867 ipr_cmd->sibling = NULL;
869 complete(&ipr_cmd->completion);
873 * ipr_init_ioadl - initialize the ioadl for the correct SIS type
874 * @ipr_cmd: ipr command struct
875 * @dma_addr: dma address
876 * @len: transfer length
877 * @flags: ioadl flag value
879 * This function initializes an ioadl in the case where there is only a single
885 static void ipr_init_ioadl(struct ipr_cmnd *ipr_cmd, dma_addr_t dma_addr,
888 struct ipr_ioadl_desc *ioadl = ipr_cmd->i.ioadl;
889 struct ipr_ioadl64_desc *ioadl64 = ipr_cmd->i.ioadl64;
891 ipr_cmd->dma_use_sg = 1;
893 if (ipr_cmd->ioa_cfg->sis64) {
894 ioadl64->flags = cpu_to_be32(flags);
895 ioadl64->data_len = cpu_to_be32(len);
896 ioadl64->address = cpu_to_be64(dma_addr);
898 ipr_cmd->ioarcb.ioadl_len =
899 cpu_to_be32(sizeof(struct ipr_ioadl64_desc));
900 ipr_cmd->ioarcb.data_transfer_length = cpu_to_be32(len);
902 ioadl->flags_and_data_len = cpu_to_be32(flags | len);
903 ioadl->address = cpu_to_be32(dma_addr);
905 if (flags == IPR_IOADL_FLAGS_READ_LAST) {
906 ipr_cmd->ioarcb.read_ioadl_len =
907 cpu_to_be32(sizeof(struct ipr_ioadl_desc));
908 ipr_cmd->ioarcb.read_data_transfer_length = cpu_to_be32(len);
910 ipr_cmd->ioarcb.ioadl_len =
911 cpu_to_be32(sizeof(struct ipr_ioadl_desc));
912 ipr_cmd->ioarcb.data_transfer_length = cpu_to_be32(len);
918 * ipr_send_blocking_cmd - Send command and sleep on its completion.
919 * @ipr_cmd: ipr command struct
920 * @timeout_func: function to invoke if command times out
926 static void ipr_send_blocking_cmd(struct ipr_cmnd *ipr_cmd,
927 void (*timeout_func) (struct ipr_cmnd *ipr_cmd),
930 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
932 init_completion(&ipr_cmd->completion);
933 ipr_do_req(ipr_cmd, ipr_internal_cmd_done, timeout_func, timeout);
935 spin_unlock_irq(ioa_cfg->host->host_lock);
936 wait_for_completion(&ipr_cmd->completion);
937 spin_lock_irq(ioa_cfg->host->host_lock);
941 * ipr_send_hcam - Send an HCAM to the adapter.
942 * @ioa_cfg: ioa config struct
944 * @hostrcb: hostrcb struct
946 * This function will send a Host Controlled Async command to the adapter.
947 * If HCAMs are currently not allowed to be issued to the adapter, it will
948 * place the hostrcb on the free queue.
953 static void ipr_send_hcam(struct ipr_ioa_cfg *ioa_cfg, u8 type,
954 struct ipr_hostrcb *hostrcb)
956 struct ipr_cmnd *ipr_cmd;
957 struct ipr_ioarcb *ioarcb;
959 if (ioa_cfg->allow_cmds) {
960 ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg);
961 list_add_tail(&ipr_cmd->queue, &ioa_cfg->pending_q);
962 list_add_tail(&hostrcb->queue, &ioa_cfg->hostrcb_pending_q);
964 ipr_cmd->u.hostrcb = hostrcb;
965 ioarcb = &ipr_cmd->ioarcb;
967 ioarcb->res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE);
968 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_HCAM;
969 ioarcb->cmd_pkt.cdb[0] = IPR_HOST_CONTROLLED_ASYNC;
970 ioarcb->cmd_pkt.cdb[1] = type;
971 ioarcb->cmd_pkt.cdb[7] = (sizeof(hostrcb->hcam) >> 8) & 0xff;
972 ioarcb->cmd_pkt.cdb[8] = sizeof(hostrcb->hcam) & 0xff;
974 ipr_init_ioadl(ipr_cmd, hostrcb->hostrcb_dma,
975 sizeof(hostrcb->hcam), IPR_IOADL_FLAGS_READ_LAST);
977 if (type == IPR_HCAM_CDB_OP_CODE_CONFIG_CHANGE)
978 ipr_cmd->done = ipr_process_ccn;
980 ipr_cmd->done = ipr_process_error;
982 ipr_trc_hook(ipr_cmd, IPR_TRACE_START, IPR_IOA_RES_ADDR);
986 ipr_send_command(ipr_cmd);
988 list_add_tail(&hostrcb->queue, &ioa_cfg->hostrcb_free_q);
993 * ipr_update_ata_class - Update the ata class in the resource entry
994 * @res: resource entry struct
995 * @proto: cfgte device bus protocol value
1000 static void ipr_update_ata_class(struct ipr_resource_entry *res, unsigned int proto)
1003 case IPR_PROTO_SATA:
1004 case IPR_PROTO_SAS_STP:
1005 res->ata_class = ATA_DEV_ATA;
1007 case IPR_PROTO_SATA_ATAPI:
1008 case IPR_PROTO_SAS_STP_ATAPI:
1009 res->ata_class = ATA_DEV_ATAPI;
1012 res->ata_class = ATA_DEV_UNKNOWN;
1018 * ipr_init_res_entry - Initialize a resource entry struct.
1019 * @res: resource entry struct
1020 * @cfgtew: config table entry wrapper struct
1025 static void ipr_init_res_entry(struct ipr_resource_entry *res,
1026 struct ipr_config_table_entry_wrapper *cfgtew)
1030 struct ipr_ioa_cfg *ioa_cfg = res->ioa_cfg;
1031 struct ipr_resource_entry *gscsi_res = NULL;
1033 res->needs_sync_complete = 0;
1036 res->del_from_ml = 0;
1037 res->resetting_device = 0;
1039 res->sata_port = NULL;
1041 if (ioa_cfg->sis64) {
1042 proto = cfgtew->u.cfgte64->proto;
1043 res->res_flags = cfgtew->u.cfgte64->res_flags;
1044 res->qmodel = IPR_QUEUEING_MODEL64(res);
1045 res->type = cfgtew->u.cfgte64->res_type;
1047 memcpy(res->res_path, &cfgtew->u.cfgte64->res_path,
1048 sizeof(res->res_path));
1051 res->lun = scsilun_to_int(&res->dev_lun);
1053 if (res->type == IPR_RES_TYPE_GENERIC_SCSI) {
1054 list_for_each_entry(gscsi_res, &ioa_cfg->used_res_q, queue) {
1055 if (gscsi_res->dev_id == cfgtew->u.cfgte64->dev_id) {
1057 res->target = gscsi_res->target;
1062 res->target = find_first_zero_bit(ioa_cfg->target_ids,
1063 ioa_cfg->max_devs_supported);
1064 set_bit(res->target, ioa_cfg->target_ids);
1067 memcpy(&res->dev_lun.scsi_lun, &cfgtew->u.cfgte64->lun,
1068 sizeof(res->dev_lun.scsi_lun));
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;
1101 ipr_update_ata_class(res, proto);
1105 * ipr_is_same_device - Determine if two devices are the same.
1106 * @res: resource entry struct
1107 * @cfgtew: config table entry wrapper struct
1110 * 1 if the devices are the same / 0 otherwise
1112 static int ipr_is_same_device(struct ipr_resource_entry *res,
1113 struct ipr_config_table_entry_wrapper *cfgtew)
1115 if (res->ioa_cfg->sis64) {
1116 if (!memcmp(&res->dev_id, &cfgtew->u.cfgte64->dev_id,
1117 sizeof(cfgtew->u.cfgte64->dev_id)) &&
1118 !memcmp(&res->lun, &cfgtew->u.cfgte64->lun,
1119 sizeof(cfgtew->u.cfgte64->lun))) {
1123 if (res->bus == cfgtew->u.cfgte->res_addr.bus &&
1124 res->target == cfgtew->u.cfgte->res_addr.target &&
1125 res->lun == cfgtew->u.cfgte->res_addr.lun)
1133 * ipr_format_res_path - Format the resource path for printing.
1134 * @res_path: resource path
1140 static char *ipr_format_res_path(u8 *res_path, char *buffer, int len)
1146 p += snprintf(p, buffer + len - p, "%02X", res_path[0]);
1147 for (i = 1; res_path[i] != 0xff && ((i * 3) < len); i++)
1148 p += snprintf(p, buffer + len - p, "-%02X", res_path[i]);
1154 * ipr_update_res_entry - Update the resource entry.
1155 * @res: resource entry struct
1156 * @cfgtew: config table entry wrapper struct
1161 static void ipr_update_res_entry(struct ipr_resource_entry *res,
1162 struct ipr_config_table_entry_wrapper *cfgtew)
1164 char buffer[IPR_MAX_RES_PATH_LENGTH];
1168 if (res->ioa_cfg->sis64) {
1169 res->flags = cfgtew->u.cfgte64->flags;
1170 res->res_flags = cfgtew->u.cfgte64->res_flags;
1171 res->type = cfgtew->u.cfgte64->res_type & 0x0f;
1173 memcpy(&res->std_inq_data, &cfgtew->u.cfgte64->std_inq_data,
1174 sizeof(struct ipr_std_inq_data));
1176 res->qmodel = IPR_QUEUEING_MODEL64(res);
1177 proto = cfgtew->u.cfgte64->proto;
1178 res->res_handle = cfgtew->u.cfgte64->res_handle;
1179 res->dev_id = cfgtew->u.cfgte64->dev_id;
1181 memcpy(&res->dev_lun.scsi_lun, &cfgtew->u.cfgte64->lun,
1182 sizeof(res->dev_lun.scsi_lun));
1184 if (memcmp(res->res_path, &cfgtew->u.cfgte64->res_path,
1185 sizeof(res->res_path))) {
1186 memcpy(res->res_path, &cfgtew->u.cfgte64->res_path,
1187 sizeof(res->res_path));
1191 if (res->sdev && new_path)
1192 sdev_printk(KERN_INFO, res->sdev, "Resource path: %s\n",
1193 ipr_format_res_path(res->res_path, buffer,
1196 res->flags = cfgtew->u.cfgte->flags;
1197 if (res->flags & IPR_IS_IOA_RESOURCE)
1198 res->type = IPR_RES_TYPE_IOAFP;
1200 res->type = cfgtew->u.cfgte->rsvd_subtype & 0x0f;
1202 memcpy(&res->std_inq_data, &cfgtew->u.cfgte->std_inq_data,
1203 sizeof(struct ipr_std_inq_data));
1205 res->qmodel = IPR_QUEUEING_MODEL(res);
1206 proto = cfgtew->u.cfgte->proto;
1207 res->res_handle = cfgtew->u.cfgte->res_handle;
1210 ipr_update_ata_class(res, proto);
1214 * ipr_clear_res_target - Clear the bit in the bit map representing the target
1216 * @res: resource entry struct
1217 * @cfgtew: config table entry wrapper struct
1222 static void ipr_clear_res_target(struct ipr_resource_entry *res)
1224 struct ipr_resource_entry *gscsi_res = NULL;
1225 struct ipr_ioa_cfg *ioa_cfg = res->ioa_cfg;
1227 if (!ioa_cfg->sis64)
1230 if (res->bus == IPR_ARRAY_VIRTUAL_BUS)
1231 clear_bit(res->target, ioa_cfg->array_ids);
1232 else if (res->bus == IPR_VSET_VIRTUAL_BUS)
1233 clear_bit(res->target, ioa_cfg->vset_ids);
1234 else if (res->bus == 0 && res->type == IPR_RES_TYPE_GENERIC_SCSI) {
1235 list_for_each_entry(gscsi_res, &ioa_cfg->used_res_q, queue)
1236 if (gscsi_res->dev_id == res->dev_id && gscsi_res != res)
1238 clear_bit(res->target, ioa_cfg->target_ids);
1240 } else if (res->bus == 0)
1241 clear_bit(res->target, ioa_cfg->target_ids);
1245 * ipr_handle_config_change - Handle a config change from the adapter
1246 * @ioa_cfg: ioa config struct
1252 static void ipr_handle_config_change(struct ipr_ioa_cfg *ioa_cfg,
1253 struct ipr_hostrcb *hostrcb)
1255 struct ipr_resource_entry *res = NULL;
1256 struct ipr_config_table_entry_wrapper cfgtew;
1257 __be32 cc_res_handle;
1261 if (ioa_cfg->sis64) {
1262 cfgtew.u.cfgte64 = &hostrcb->hcam.u.ccn.u.cfgte64;
1263 cc_res_handle = cfgtew.u.cfgte64->res_handle;
1265 cfgtew.u.cfgte = &hostrcb->hcam.u.ccn.u.cfgte;
1266 cc_res_handle = cfgtew.u.cfgte->res_handle;
1269 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) {
1270 if (res->res_handle == cc_res_handle) {
1277 if (list_empty(&ioa_cfg->free_res_q)) {
1278 ipr_send_hcam(ioa_cfg,
1279 IPR_HCAM_CDB_OP_CODE_CONFIG_CHANGE,
1284 res = list_entry(ioa_cfg->free_res_q.next,
1285 struct ipr_resource_entry, queue);
1287 list_del(&res->queue);
1288 ipr_init_res_entry(res, &cfgtew);
1289 list_add_tail(&res->queue, &ioa_cfg->used_res_q);
1292 ipr_update_res_entry(res, &cfgtew);
1294 if (hostrcb->hcam.notify_type == IPR_HOST_RCB_NOTIF_TYPE_REM_ENTRY) {
1296 res->del_from_ml = 1;
1297 res->res_handle = IPR_INVALID_RES_HANDLE;
1298 if (ioa_cfg->allow_ml_add_del)
1299 schedule_work(&ioa_cfg->work_q);
1301 ipr_clear_res_target(res);
1302 list_move_tail(&res->queue, &ioa_cfg->free_res_q);
1304 } else if (!res->sdev) {
1306 if (ioa_cfg->allow_ml_add_del)
1307 schedule_work(&ioa_cfg->work_q);
1310 ipr_send_hcam(ioa_cfg, IPR_HCAM_CDB_OP_CODE_CONFIG_CHANGE, hostrcb);
1314 * ipr_process_ccn - Op done function for a CCN.
1315 * @ipr_cmd: ipr command struct
1317 * This function is the op done function for a configuration
1318 * change notification host controlled async from the adapter.
1323 static void ipr_process_ccn(struct ipr_cmnd *ipr_cmd)
1325 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
1326 struct ipr_hostrcb *hostrcb = ipr_cmd->u.hostrcb;
1327 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
1329 list_del(&hostrcb->queue);
1330 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
1333 if (ioasc != IPR_IOASC_IOA_WAS_RESET)
1334 dev_err(&ioa_cfg->pdev->dev,
1335 "Host RCB failed with IOASC: 0x%08X\n", ioasc);
1337 ipr_send_hcam(ioa_cfg, IPR_HCAM_CDB_OP_CODE_CONFIG_CHANGE, hostrcb);
1339 ipr_handle_config_change(ioa_cfg, hostrcb);
1344 * strip_and_pad_whitespace - Strip and pad trailing whitespace.
1345 * @i: index into buffer
1346 * @buf: string to modify
1348 * This function will strip all trailing whitespace, pad the end
1349 * of the string with a single space, and NULL terminate the string.
1352 * new length of string
1354 static int strip_and_pad_whitespace(int i, char *buf)
1356 while (i && buf[i] == ' ')
1364 * ipr_log_vpd_compact - Log the passed extended VPD compactly.
1365 * @prefix: string to print at start of printk
1366 * @hostrcb: hostrcb pointer
1367 * @vpd: vendor/product id/sn struct
1372 static void ipr_log_vpd_compact(char *prefix, struct ipr_hostrcb *hostrcb,
1373 struct ipr_vpd *vpd)
1375 char buffer[IPR_VENDOR_ID_LEN + IPR_PROD_ID_LEN + IPR_SERIAL_NUM_LEN + 3];
1378 memcpy(buffer, vpd->vpids.vendor_id, IPR_VENDOR_ID_LEN);
1379 i = strip_and_pad_whitespace(IPR_VENDOR_ID_LEN - 1, buffer);
1381 memcpy(&buffer[i], vpd->vpids.product_id, IPR_PROD_ID_LEN);
1382 i = strip_and_pad_whitespace(i + IPR_PROD_ID_LEN - 1, buffer);
1384 memcpy(&buffer[i], vpd->sn, IPR_SERIAL_NUM_LEN);
1385 buffer[IPR_SERIAL_NUM_LEN + i] = '\0';
1387 ipr_hcam_err(hostrcb, "%s VPID/SN: %s\n", prefix, buffer);
1391 * ipr_log_vpd - Log the passed VPD to the error log.
1392 * @vpd: vendor/product id/sn struct
1397 static void ipr_log_vpd(struct ipr_vpd *vpd)
1399 char buffer[IPR_VENDOR_ID_LEN + IPR_PROD_ID_LEN
1400 + IPR_SERIAL_NUM_LEN];
1402 memcpy(buffer, vpd->vpids.vendor_id, IPR_VENDOR_ID_LEN);
1403 memcpy(buffer + IPR_VENDOR_ID_LEN, vpd->vpids.product_id,
1405 buffer[IPR_VENDOR_ID_LEN + IPR_PROD_ID_LEN] = '\0';
1406 ipr_err("Vendor/Product ID: %s\n", buffer);
1408 memcpy(buffer, vpd->sn, IPR_SERIAL_NUM_LEN);
1409 buffer[IPR_SERIAL_NUM_LEN] = '\0';
1410 ipr_err(" Serial Number: %s\n", buffer);
1414 * ipr_log_ext_vpd_compact - Log the passed extended VPD compactly.
1415 * @prefix: string to print at start of printk
1416 * @hostrcb: hostrcb pointer
1417 * @vpd: vendor/product id/sn/wwn struct
1422 static void ipr_log_ext_vpd_compact(char *prefix, struct ipr_hostrcb *hostrcb,
1423 struct ipr_ext_vpd *vpd)
1425 ipr_log_vpd_compact(prefix, hostrcb, &vpd->vpd);
1426 ipr_hcam_err(hostrcb, "%s WWN: %08X%08X\n", prefix,
1427 be32_to_cpu(vpd->wwid[0]), be32_to_cpu(vpd->wwid[1]));
1431 * ipr_log_ext_vpd - Log the passed extended VPD to the error log.
1432 * @vpd: vendor/product id/sn/wwn struct
1437 static void ipr_log_ext_vpd(struct ipr_ext_vpd *vpd)
1439 ipr_log_vpd(&vpd->vpd);
1440 ipr_err(" WWN: %08X%08X\n", be32_to_cpu(vpd->wwid[0]),
1441 be32_to_cpu(vpd->wwid[1]));
1445 * ipr_log_enhanced_cache_error - Log a cache error.
1446 * @ioa_cfg: ioa config struct
1447 * @hostrcb: hostrcb struct
1452 static void ipr_log_enhanced_cache_error(struct ipr_ioa_cfg *ioa_cfg,
1453 struct ipr_hostrcb *hostrcb)
1455 struct ipr_hostrcb_type_12_error *error;
1458 error = &hostrcb->hcam.u.error64.u.type_12_error;
1460 error = &hostrcb->hcam.u.error.u.type_12_error;
1462 ipr_err("-----Current Configuration-----\n");
1463 ipr_err("Cache Directory Card Information:\n");
1464 ipr_log_ext_vpd(&error->ioa_vpd);
1465 ipr_err("Adapter Card Information:\n");
1466 ipr_log_ext_vpd(&error->cfc_vpd);
1468 ipr_err("-----Expected Configuration-----\n");
1469 ipr_err("Cache Directory Card Information:\n");
1470 ipr_log_ext_vpd(&error->ioa_last_attached_to_cfc_vpd);
1471 ipr_err("Adapter Card Information:\n");
1472 ipr_log_ext_vpd(&error->cfc_last_attached_to_ioa_vpd);
1474 ipr_err("Additional IOA Data: %08X %08X %08X\n",
1475 be32_to_cpu(error->ioa_data[0]),
1476 be32_to_cpu(error->ioa_data[1]),
1477 be32_to_cpu(error->ioa_data[2]));
1481 * ipr_log_cache_error - Log a cache error.
1482 * @ioa_cfg: ioa config struct
1483 * @hostrcb: hostrcb struct
1488 static void ipr_log_cache_error(struct ipr_ioa_cfg *ioa_cfg,
1489 struct ipr_hostrcb *hostrcb)
1491 struct ipr_hostrcb_type_02_error *error =
1492 &hostrcb->hcam.u.error.u.type_02_error;
1494 ipr_err("-----Current Configuration-----\n");
1495 ipr_err("Cache Directory Card Information:\n");
1496 ipr_log_vpd(&error->ioa_vpd);
1497 ipr_err("Adapter Card Information:\n");
1498 ipr_log_vpd(&error->cfc_vpd);
1500 ipr_err("-----Expected Configuration-----\n");
1501 ipr_err("Cache Directory Card Information:\n");
1502 ipr_log_vpd(&error->ioa_last_attached_to_cfc_vpd);
1503 ipr_err("Adapter Card Information:\n");
1504 ipr_log_vpd(&error->cfc_last_attached_to_ioa_vpd);
1506 ipr_err("Additional IOA Data: %08X %08X %08X\n",
1507 be32_to_cpu(error->ioa_data[0]),
1508 be32_to_cpu(error->ioa_data[1]),
1509 be32_to_cpu(error->ioa_data[2]));
1513 * ipr_log_enhanced_config_error - Log a configuration error.
1514 * @ioa_cfg: ioa config struct
1515 * @hostrcb: hostrcb struct
1520 static void ipr_log_enhanced_config_error(struct ipr_ioa_cfg *ioa_cfg,
1521 struct ipr_hostrcb *hostrcb)
1523 int errors_logged, i;
1524 struct ipr_hostrcb_device_data_entry_enhanced *dev_entry;
1525 struct ipr_hostrcb_type_13_error *error;
1527 error = &hostrcb->hcam.u.error.u.type_13_error;
1528 errors_logged = be32_to_cpu(error->errors_logged);
1530 ipr_err("Device Errors Detected/Logged: %d/%d\n",
1531 be32_to_cpu(error->errors_detected), errors_logged);
1533 dev_entry = error->dev;
1535 for (i = 0; i < errors_logged; i++, dev_entry++) {
1538 ipr_phys_res_err(ioa_cfg, dev_entry->dev_res_addr, "Device %d", i + 1);
1539 ipr_log_ext_vpd(&dev_entry->vpd);
1541 ipr_err("-----New Device Information-----\n");
1542 ipr_log_ext_vpd(&dev_entry->new_vpd);
1544 ipr_err("Cache Directory Card Information:\n");
1545 ipr_log_ext_vpd(&dev_entry->ioa_last_with_dev_vpd);
1547 ipr_err("Adapter Card Information:\n");
1548 ipr_log_ext_vpd(&dev_entry->cfc_last_with_dev_vpd);
1553 * ipr_log_sis64_config_error - Log a device error.
1554 * @ioa_cfg: ioa config struct
1555 * @hostrcb: hostrcb struct
1560 static void ipr_log_sis64_config_error(struct ipr_ioa_cfg *ioa_cfg,
1561 struct ipr_hostrcb *hostrcb)
1563 int errors_logged, i;
1564 struct ipr_hostrcb64_device_data_entry_enhanced *dev_entry;
1565 struct ipr_hostrcb_type_23_error *error;
1566 char buffer[IPR_MAX_RES_PATH_LENGTH];
1568 error = &hostrcb->hcam.u.error64.u.type_23_error;
1569 errors_logged = be32_to_cpu(error->errors_logged);
1571 ipr_err("Device Errors Detected/Logged: %d/%d\n",
1572 be32_to_cpu(error->errors_detected), errors_logged);
1574 dev_entry = error->dev;
1576 for (i = 0; i < errors_logged; i++, dev_entry++) {
1579 ipr_err("Device %d : %s", i + 1,
1580 ipr_format_res_path(dev_entry->res_path, buffer,
1582 ipr_log_ext_vpd(&dev_entry->vpd);
1584 ipr_err("-----New Device Information-----\n");
1585 ipr_log_ext_vpd(&dev_entry->new_vpd);
1587 ipr_err("Cache Directory Card Information:\n");
1588 ipr_log_ext_vpd(&dev_entry->ioa_last_with_dev_vpd);
1590 ipr_err("Adapter Card Information:\n");
1591 ipr_log_ext_vpd(&dev_entry->cfc_last_with_dev_vpd);
1596 * ipr_log_config_error - Log a configuration error.
1597 * @ioa_cfg: ioa config struct
1598 * @hostrcb: hostrcb struct
1603 static void ipr_log_config_error(struct ipr_ioa_cfg *ioa_cfg,
1604 struct ipr_hostrcb *hostrcb)
1606 int errors_logged, i;
1607 struct ipr_hostrcb_device_data_entry *dev_entry;
1608 struct ipr_hostrcb_type_03_error *error;
1610 error = &hostrcb->hcam.u.error.u.type_03_error;
1611 errors_logged = be32_to_cpu(error->errors_logged);
1613 ipr_err("Device Errors Detected/Logged: %d/%d\n",
1614 be32_to_cpu(error->errors_detected), errors_logged);
1616 dev_entry = error->dev;
1618 for (i = 0; i < errors_logged; i++, dev_entry++) {
1621 ipr_phys_res_err(ioa_cfg, dev_entry->dev_res_addr, "Device %d", i + 1);
1622 ipr_log_vpd(&dev_entry->vpd);
1624 ipr_err("-----New Device Information-----\n");
1625 ipr_log_vpd(&dev_entry->new_vpd);
1627 ipr_err("Cache Directory Card Information:\n");
1628 ipr_log_vpd(&dev_entry->ioa_last_with_dev_vpd);
1630 ipr_err("Adapter Card Information:\n");
1631 ipr_log_vpd(&dev_entry->cfc_last_with_dev_vpd);
1633 ipr_err("Additional IOA Data: %08X %08X %08X %08X %08X\n",
1634 be32_to_cpu(dev_entry->ioa_data[0]),
1635 be32_to_cpu(dev_entry->ioa_data[1]),
1636 be32_to_cpu(dev_entry->ioa_data[2]),
1637 be32_to_cpu(dev_entry->ioa_data[3]),
1638 be32_to_cpu(dev_entry->ioa_data[4]));
1643 * ipr_log_enhanced_array_error - Log an array configuration error.
1644 * @ioa_cfg: ioa config struct
1645 * @hostrcb: hostrcb struct
1650 static void ipr_log_enhanced_array_error(struct ipr_ioa_cfg *ioa_cfg,
1651 struct ipr_hostrcb *hostrcb)
1654 struct ipr_hostrcb_type_14_error *error;
1655 struct ipr_hostrcb_array_data_entry_enhanced *array_entry;
1656 const u8 zero_sn[IPR_SERIAL_NUM_LEN] = { [0 ... IPR_SERIAL_NUM_LEN-1] = '0' };
1658 error = &hostrcb->hcam.u.error.u.type_14_error;
1662 ipr_err("RAID %s Array Configuration: %d:%d:%d:%d\n",
1663 error->protection_level,
1664 ioa_cfg->host->host_no,
1665 error->last_func_vset_res_addr.bus,
1666 error->last_func_vset_res_addr.target,
1667 error->last_func_vset_res_addr.lun);
1671 array_entry = error->array_member;
1672 num_entries = min_t(u32, be32_to_cpu(error->num_entries),
1673 sizeof(error->array_member));
1675 for (i = 0; i < num_entries; i++, array_entry++) {
1676 if (!memcmp(array_entry->vpd.vpd.sn, zero_sn, IPR_SERIAL_NUM_LEN))
1679 if (be32_to_cpu(error->exposed_mode_adn) == i)
1680 ipr_err("Exposed Array Member %d:\n", i);
1682 ipr_err("Array Member %d:\n", i);
1684 ipr_log_ext_vpd(&array_entry->vpd);
1685 ipr_phys_res_err(ioa_cfg, array_entry->dev_res_addr, "Current Location");
1686 ipr_phys_res_err(ioa_cfg, array_entry->expected_dev_res_addr,
1687 "Expected Location");
1694 * ipr_log_array_error - Log an array configuration error.
1695 * @ioa_cfg: ioa config struct
1696 * @hostrcb: hostrcb struct
1701 static void ipr_log_array_error(struct ipr_ioa_cfg *ioa_cfg,
1702 struct ipr_hostrcb *hostrcb)
1705 struct ipr_hostrcb_type_04_error *error;
1706 struct ipr_hostrcb_array_data_entry *array_entry;
1707 const u8 zero_sn[IPR_SERIAL_NUM_LEN] = { [0 ... IPR_SERIAL_NUM_LEN-1] = '0' };
1709 error = &hostrcb->hcam.u.error.u.type_04_error;
1713 ipr_err("RAID %s Array Configuration: %d:%d:%d:%d\n",
1714 error->protection_level,
1715 ioa_cfg->host->host_no,
1716 error->last_func_vset_res_addr.bus,
1717 error->last_func_vset_res_addr.target,
1718 error->last_func_vset_res_addr.lun);
1722 array_entry = error->array_member;
1724 for (i = 0; i < 18; i++) {
1725 if (!memcmp(array_entry->vpd.sn, zero_sn, IPR_SERIAL_NUM_LEN))
1728 if (be32_to_cpu(error->exposed_mode_adn) == i)
1729 ipr_err("Exposed Array Member %d:\n", i);
1731 ipr_err("Array Member %d:\n", i);
1733 ipr_log_vpd(&array_entry->vpd);
1735 ipr_phys_res_err(ioa_cfg, array_entry->dev_res_addr, "Current Location");
1736 ipr_phys_res_err(ioa_cfg, array_entry->expected_dev_res_addr,
1737 "Expected Location");
1742 array_entry = error->array_member2;
1749 * ipr_log_hex_data - Log additional hex IOA error data.
1750 * @ioa_cfg: ioa config struct
1751 * @data: IOA error data
1757 static void ipr_log_hex_data(struct ipr_ioa_cfg *ioa_cfg, u32 *data, int len)
1764 if (ioa_cfg->log_level <= IPR_DEFAULT_LOG_LEVEL)
1765 len = min_t(int, len, IPR_DEFAULT_MAX_ERROR_DUMP);
1767 for (i = 0; i < len / 4; i += 4) {
1768 ipr_err("%08X: %08X %08X %08X %08X\n", i*4,
1769 be32_to_cpu(data[i]),
1770 be32_to_cpu(data[i+1]),
1771 be32_to_cpu(data[i+2]),
1772 be32_to_cpu(data[i+3]));
1777 * ipr_log_enhanced_dual_ioa_error - Log an enhanced dual adapter error.
1778 * @ioa_cfg: ioa config struct
1779 * @hostrcb: hostrcb struct
1784 static void ipr_log_enhanced_dual_ioa_error(struct ipr_ioa_cfg *ioa_cfg,
1785 struct ipr_hostrcb *hostrcb)
1787 struct ipr_hostrcb_type_17_error *error;
1790 error = &hostrcb->hcam.u.error64.u.type_17_error;
1792 error = &hostrcb->hcam.u.error.u.type_17_error;
1794 error->failure_reason[sizeof(error->failure_reason) - 1] = '\0';
1795 strim(error->failure_reason);
1797 ipr_hcam_err(hostrcb, "%s [PRC: %08X]\n", error->failure_reason,
1798 be32_to_cpu(hostrcb->hcam.u.error.prc));
1799 ipr_log_ext_vpd_compact("Remote IOA", hostrcb, &error->vpd);
1800 ipr_log_hex_data(ioa_cfg, error->data,
1801 be32_to_cpu(hostrcb->hcam.length) -
1802 (offsetof(struct ipr_hostrcb_error, u) +
1803 offsetof(struct ipr_hostrcb_type_17_error, data)));
1807 * ipr_log_dual_ioa_error - Log a dual adapter error.
1808 * @ioa_cfg: ioa config struct
1809 * @hostrcb: hostrcb struct
1814 static void ipr_log_dual_ioa_error(struct ipr_ioa_cfg *ioa_cfg,
1815 struct ipr_hostrcb *hostrcb)
1817 struct ipr_hostrcb_type_07_error *error;
1819 error = &hostrcb->hcam.u.error.u.type_07_error;
1820 error->failure_reason[sizeof(error->failure_reason) - 1] = '\0';
1821 strim(error->failure_reason);
1823 ipr_hcam_err(hostrcb, "%s [PRC: %08X]\n", error->failure_reason,
1824 be32_to_cpu(hostrcb->hcam.u.error.prc));
1825 ipr_log_vpd_compact("Remote IOA", hostrcb, &error->vpd);
1826 ipr_log_hex_data(ioa_cfg, error->data,
1827 be32_to_cpu(hostrcb->hcam.length) -
1828 (offsetof(struct ipr_hostrcb_error, u) +
1829 offsetof(struct ipr_hostrcb_type_07_error, data)));
1832 static const struct {
1835 } path_active_desc[] = {
1836 { IPR_PATH_NO_INFO, "Path" },
1837 { IPR_PATH_ACTIVE, "Active path" },
1838 { IPR_PATH_NOT_ACTIVE, "Inactive path" }
1841 static const struct {
1844 } path_state_desc[] = {
1845 { IPR_PATH_STATE_NO_INFO, "has no path state information available" },
1846 { IPR_PATH_HEALTHY, "is healthy" },
1847 { IPR_PATH_DEGRADED, "is degraded" },
1848 { IPR_PATH_FAILED, "is failed" }
1852 * ipr_log_fabric_path - Log a fabric path error
1853 * @hostrcb: hostrcb struct
1854 * @fabric: fabric descriptor
1859 static void ipr_log_fabric_path(struct ipr_hostrcb *hostrcb,
1860 struct ipr_hostrcb_fabric_desc *fabric)
1863 u8 path_state = fabric->path_state;
1864 u8 active = path_state & IPR_PATH_ACTIVE_MASK;
1865 u8 state = path_state & IPR_PATH_STATE_MASK;
1867 for (i = 0; i < ARRAY_SIZE(path_active_desc); i++) {
1868 if (path_active_desc[i].active != active)
1871 for (j = 0; j < ARRAY_SIZE(path_state_desc); j++) {
1872 if (path_state_desc[j].state != state)
1875 if (fabric->cascaded_expander == 0xff && fabric->phy == 0xff) {
1876 ipr_hcam_err(hostrcb, "%s %s: IOA Port=%d\n",
1877 path_active_desc[i].desc, path_state_desc[j].desc,
1879 } else if (fabric->cascaded_expander == 0xff) {
1880 ipr_hcam_err(hostrcb, "%s %s: IOA Port=%d, Phy=%d\n",
1881 path_active_desc[i].desc, path_state_desc[j].desc,
1882 fabric->ioa_port, fabric->phy);
1883 } else if (fabric->phy == 0xff) {
1884 ipr_hcam_err(hostrcb, "%s %s: IOA Port=%d, Cascade=%d\n",
1885 path_active_desc[i].desc, path_state_desc[j].desc,
1886 fabric->ioa_port, fabric->cascaded_expander);
1888 ipr_hcam_err(hostrcb, "%s %s: IOA Port=%d, Cascade=%d, Phy=%d\n",
1889 path_active_desc[i].desc, path_state_desc[j].desc,
1890 fabric->ioa_port, fabric->cascaded_expander, fabric->phy);
1896 ipr_err("Path state=%02X IOA Port=%d Cascade=%d Phy=%d\n", path_state,
1897 fabric->ioa_port, fabric->cascaded_expander, fabric->phy);
1901 * ipr_log64_fabric_path - Log a fabric path error
1902 * @hostrcb: hostrcb struct
1903 * @fabric: fabric descriptor
1908 static void ipr_log64_fabric_path(struct ipr_hostrcb *hostrcb,
1909 struct ipr_hostrcb64_fabric_desc *fabric)
1912 u8 path_state = fabric->path_state;
1913 u8 active = path_state & IPR_PATH_ACTIVE_MASK;
1914 u8 state = path_state & IPR_PATH_STATE_MASK;
1915 char buffer[IPR_MAX_RES_PATH_LENGTH];
1917 for (i = 0; i < ARRAY_SIZE(path_active_desc); i++) {
1918 if (path_active_desc[i].active != active)
1921 for (j = 0; j < ARRAY_SIZE(path_state_desc); j++) {
1922 if (path_state_desc[j].state != state)
1925 ipr_hcam_err(hostrcb, "%s %s: Resource Path=%s\n",
1926 path_active_desc[i].desc, path_state_desc[j].desc,
1927 ipr_format_res_path(fabric->res_path, buffer,
1933 ipr_err("Path state=%02X Resource Path=%s\n", path_state,
1934 ipr_format_res_path(fabric->res_path, buffer, sizeof(buffer)));
1937 static const struct {
1940 } path_type_desc[] = {
1941 { IPR_PATH_CFG_IOA_PORT, "IOA port" },
1942 { IPR_PATH_CFG_EXP_PORT, "Expander port" },
1943 { IPR_PATH_CFG_DEVICE_PORT, "Device port" },
1944 { IPR_PATH_CFG_DEVICE_LUN, "Device LUN" }
1947 static const struct {
1950 } path_status_desc[] = {
1951 { IPR_PATH_CFG_NO_PROB, "Functional" },
1952 { IPR_PATH_CFG_DEGRADED, "Degraded" },
1953 { IPR_PATH_CFG_FAILED, "Failed" },
1954 { IPR_PATH_CFG_SUSPECT, "Suspect" },
1955 { IPR_PATH_NOT_DETECTED, "Missing" },
1956 { IPR_PATH_INCORRECT_CONN, "Incorrectly connected" }
1959 static const char *link_rate[] = {
1962 "phy reset problem",
1979 * ipr_log_path_elem - Log a fabric path element.
1980 * @hostrcb: hostrcb struct
1981 * @cfg: fabric path element struct
1986 static void ipr_log_path_elem(struct ipr_hostrcb *hostrcb,
1987 struct ipr_hostrcb_config_element *cfg)
1990 u8 type = cfg->type_status & IPR_PATH_CFG_TYPE_MASK;
1991 u8 status = cfg->type_status & IPR_PATH_CFG_STATUS_MASK;
1993 if (type == IPR_PATH_CFG_NOT_EXIST)
1996 for (i = 0; i < ARRAY_SIZE(path_type_desc); i++) {
1997 if (path_type_desc[i].type != type)
2000 for (j = 0; j < ARRAY_SIZE(path_status_desc); j++) {
2001 if (path_status_desc[j].status != status)
2004 if (type == IPR_PATH_CFG_IOA_PORT) {
2005 ipr_hcam_err(hostrcb, "%s %s: Phy=%d, Link rate=%s, WWN=%08X%08X\n",
2006 path_status_desc[j].desc, path_type_desc[i].desc,
2007 cfg->phy, link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK],
2008 be32_to_cpu(cfg->wwid[0]), be32_to_cpu(cfg->wwid[1]));
2010 if (cfg->cascaded_expander == 0xff && cfg->phy == 0xff) {
2011 ipr_hcam_err(hostrcb, "%s %s: Link rate=%s, WWN=%08X%08X\n",
2012 path_status_desc[j].desc, path_type_desc[i].desc,
2013 link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK],
2014 be32_to_cpu(cfg->wwid[0]), be32_to_cpu(cfg->wwid[1]));
2015 } else if (cfg->cascaded_expander == 0xff) {
2016 ipr_hcam_err(hostrcb, "%s %s: Phy=%d, Link rate=%s, "
2017 "WWN=%08X%08X\n", path_status_desc[j].desc,
2018 path_type_desc[i].desc, cfg->phy,
2019 link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK],
2020 be32_to_cpu(cfg->wwid[0]), be32_to_cpu(cfg->wwid[1]));
2021 } else if (cfg->phy == 0xff) {
2022 ipr_hcam_err(hostrcb, "%s %s: Cascade=%d, Link rate=%s, "
2023 "WWN=%08X%08X\n", path_status_desc[j].desc,
2024 path_type_desc[i].desc, cfg->cascaded_expander,
2025 link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK],
2026 be32_to_cpu(cfg->wwid[0]), be32_to_cpu(cfg->wwid[1]));
2028 ipr_hcam_err(hostrcb, "%s %s: Cascade=%d, Phy=%d, Link rate=%s "
2029 "WWN=%08X%08X\n", path_status_desc[j].desc,
2030 path_type_desc[i].desc, cfg->cascaded_expander, cfg->phy,
2031 link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK],
2032 be32_to_cpu(cfg->wwid[0]), be32_to_cpu(cfg->wwid[1]));
2039 ipr_hcam_err(hostrcb, "Path element=%02X: Cascade=%d Phy=%d Link rate=%s "
2040 "WWN=%08X%08X\n", cfg->type_status, cfg->cascaded_expander, cfg->phy,
2041 link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK],
2042 be32_to_cpu(cfg->wwid[0]), be32_to_cpu(cfg->wwid[1]));
2046 * ipr_log64_path_elem - Log a fabric path element.
2047 * @hostrcb: hostrcb struct
2048 * @cfg: fabric path element struct
2053 static void ipr_log64_path_elem(struct ipr_hostrcb *hostrcb,
2054 struct ipr_hostrcb64_config_element *cfg)
2057 u8 desc_id = cfg->descriptor_id & IPR_DESCRIPTOR_MASK;
2058 u8 type = cfg->type_status & IPR_PATH_CFG_TYPE_MASK;
2059 u8 status = cfg->type_status & IPR_PATH_CFG_STATUS_MASK;
2060 char buffer[IPR_MAX_RES_PATH_LENGTH];
2062 if (type == IPR_PATH_CFG_NOT_EXIST || desc_id != IPR_DESCRIPTOR_SIS64)
2065 for (i = 0; i < ARRAY_SIZE(path_type_desc); i++) {
2066 if (path_type_desc[i].type != type)
2069 for (j = 0; j < ARRAY_SIZE(path_status_desc); j++) {
2070 if (path_status_desc[j].status != status)
2073 ipr_hcam_err(hostrcb, "%s %s: Resource Path=%s, Link rate=%s, WWN=%08X%08X\n",
2074 path_status_desc[j].desc, path_type_desc[i].desc,
2075 ipr_format_res_path(cfg->res_path, buffer,
2077 link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK],
2078 be32_to_cpu(cfg->wwid[0]), be32_to_cpu(cfg->wwid[1]));
2082 ipr_hcam_err(hostrcb, "Path element=%02X: Resource Path=%s, Link rate=%s "
2083 "WWN=%08X%08X\n", cfg->type_status,
2084 ipr_format_res_path(cfg->res_path, buffer, sizeof(buffer)),
2085 link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK],
2086 be32_to_cpu(cfg->wwid[0]), be32_to_cpu(cfg->wwid[1]));
2090 * ipr_log_fabric_error - Log a fabric error.
2091 * @ioa_cfg: ioa config struct
2092 * @hostrcb: hostrcb struct
2097 static void ipr_log_fabric_error(struct ipr_ioa_cfg *ioa_cfg,
2098 struct ipr_hostrcb *hostrcb)
2100 struct ipr_hostrcb_type_20_error *error;
2101 struct ipr_hostrcb_fabric_desc *fabric;
2102 struct ipr_hostrcb_config_element *cfg;
2105 error = &hostrcb->hcam.u.error.u.type_20_error;
2106 error->failure_reason[sizeof(error->failure_reason) - 1] = '\0';
2107 ipr_hcam_err(hostrcb, "%s\n", error->failure_reason);
2109 add_len = be32_to_cpu(hostrcb->hcam.length) -
2110 (offsetof(struct ipr_hostrcb_error, u) +
2111 offsetof(struct ipr_hostrcb_type_20_error, desc));
2113 for (i = 0, fabric = error->desc; i < error->num_entries; i++) {
2114 ipr_log_fabric_path(hostrcb, fabric);
2115 for_each_fabric_cfg(fabric, cfg)
2116 ipr_log_path_elem(hostrcb, cfg);
2118 add_len -= be16_to_cpu(fabric->length);
2119 fabric = (struct ipr_hostrcb_fabric_desc *)
2120 ((unsigned long)fabric + be16_to_cpu(fabric->length));
2123 ipr_log_hex_data(ioa_cfg, (u32 *)fabric, add_len);
2127 * ipr_log_sis64_array_error - Log a sis64 array error.
2128 * @ioa_cfg: ioa config struct
2129 * @hostrcb: hostrcb struct
2134 static void ipr_log_sis64_array_error(struct ipr_ioa_cfg *ioa_cfg,
2135 struct ipr_hostrcb *hostrcb)
2138 struct ipr_hostrcb_type_24_error *error;
2139 struct ipr_hostrcb64_array_data_entry *array_entry;
2140 char buffer[IPR_MAX_RES_PATH_LENGTH];
2141 const u8 zero_sn[IPR_SERIAL_NUM_LEN] = { [0 ... IPR_SERIAL_NUM_LEN-1] = '0' };
2143 error = &hostrcb->hcam.u.error64.u.type_24_error;
2147 ipr_err("RAID %s Array Configuration: %s\n",
2148 error->protection_level,
2149 ipr_format_res_path(error->last_res_path, buffer, sizeof(buffer)));
2153 array_entry = error->array_member;
2154 num_entries = min_t(u32, be32_to_cpu(error->num_entries),
2155 sizeof(error->array_member));
2157 for (i = 0; i < num_entries; i++, array_entry++) {
2159 if (!memcmp(array_entry->vpd.vpd.sn, zero_sn, IPR_SERIAL_NUM_LEN))
2162 if (error->exposed_mode_adn == i)
2163 ipr_err("Exposed Array Member %d:\n", i);
2165 ipr_err("Array Member %d:\n", i);
2167 ipr_err("Array Member %d:\n", i);
2168 ipr_log_ext_vpd(&array_entry->vpd);
2169 ipr_err("Current Location: %s",
2170 ipr_format_res_path(array_entry->res_path, buffer,
2172 ipr_err("Expected Location: %s",
2173 ipr_format_res_path(array_entry->expected_res_path,
2174 buffer, sizeof(buffer)));
2181 * ipr_log_sis64_fabric_error - Log a sis64 fabric error.
2182 * @ioa_cfg: ioa config struct
2183 * @hostrcb: hostrcb struct
2188 static void ipr_log_sis64_fabric_error(struct ipr_ioa_cfg *ioa_cfg,
2189 struct ipr_hostrcb *hostrcb)
2191 struct ipr_hostrcb_type_30_error *error;
2192 struct ipr_hostrcb64_fabric_desc *fabric;
2193 struct ipr_hostrcb64_config_element *cfg;
2196 error = &hostrcb->hcam.u.error64.u.type_30_error;
2198 error->failure_reason[sizeof(error->failure_reason) - 1] = '\0';
2199 ipr_hcam_err(hostrcb, "%s\n", error->failure_reason);
2201 add_len = be32_to_cpu(hostrcb->hcam.length) -
2202 (offsetof(struct ipr_hostrcb64_error, u) +
2203 offsetof(struct ipr_hostrcb_type_30_error, desc));
2205 for (i = 0, fabric = error->desc; i < error->num_entries; i++) {
2206 ipr_log64_fabric_path(hostrcb, fabric);
2207 for_each_fabric_cfg(fabric, cfg)
2208 ipr_log64_path_elem(hostrcb, cfg);
2210 add_len -= be16_to_cpu(fabric->length);
2211 fabric = (struct ipr_hostrcb64_fabric_desc *)
2212 ((unsigned long)fabric + be16_to_cpu(fabric->length));
2215 ipr_log_hex_data(ioa_cfg, (u32 *)fabric, add_len);
2219 * ipr_log_generic_error - Log an adapter error.
2220 * @ioa_cfg: ioa config struct
2221 * @hostrcb: hostrcb struct
2226 static void ipr_log_generic_error(struct ipr_ioa_cfg *ioa_cfg,
2227 struct ipr_hostrcb *hostrcb)
2229 ipr_log_hex_data(ioa_cfg, hostrcb->hcam.u.raw.data,
2230 be32_to_cpu(hostrcb->hcam.length));
2234 * ipr_get_error - Find the specfied IOASC in the ipr_error_table.
2237 * This function will return the index of into the ipr_error_table
2238 * for the specified IOASC. If the IOASC is not in the table,
2239 * 0 will be returned, which points to the entry used for unknown errors.
2242 * index into the ipr_error_table
2244 static u32 ipr_get_error(u32 ioasc)
2248 for (i = 0; i < ARRAY_SIZE(ipr_error_table); i++)
2249 if (ipr_error_table[i].ioasc == (ioasc & IPR_IOASC_IOASC_MASK))
2256 * ipr_handle_log_data - Log an adapter error.
2257 * @ioa_cfg: ioa config struct
2258 * @hostrcb: hostrcb struct
2260 * This function logs an adapter error to the system.
2265 static void ipr_handle_log_data(struct ipr_ioa_cfg *ioa_cfg,
2266 struct ipr_hostrcb *hostrcb)
2271 if (hostrcb->hcam.notify_type != IPR_HOST_RCB_NOTIF_TYPE_ERROR_LOG_ENTRY)
2274 if (hostrcb->hcam.notifications_lost == IPR_HOST_RCB_NOTIFICATIONS_LOST)
2275 dev_err(&ioa_cfg->pdev->dev, "Error notifications lost\n");
2278 ioasc = be32_to_cpu(hostrcb->hcam.u.error64.fd_ioasc);
2280 ioasc = be32_to_cpu(hostrcb->hcam.u.error.fd_ioasc);
2282 if (!ioa_cfg->sis64 && (ioasc == IPR_IOASC_BUS_WAS_RESET ||
2283 ioasc == IPR_IOASC_BUS_WAS_RESET_BY_OTHER)) {
2284 /* Tell the midlayer we had a bus reset so it will handle the UA properly */
2285 scsi_report_bus_reset(ioa_cfg->host,
2286 hostrcb->hcam.u.error.fd_res_addr.bus);
2289 error_index = ipr_get_error(ioasc);
2291 if (!ipr_error_table[error_index].log_hcam)
2294 ipr_hcam_err(hostrcb, "%s\n", ipr_error_table[error_index].error);
2296 /* Set indication we have logged an error */
2297 ioa_cfg->errors_logged++;
2299 if (ioa_cfg->log_level < ipr_error_table[error_index].log_hcam)
2301 if (be32_to_cpu(hostrcb->hcam.length) > sizeof(hostrcb->hcam.u.raw))
2302 hostrcb->hcam.length = cpu_to_be32(sizeof(hostrcb->hcam.u.raw));
2304 switch (hostrcb->hcam.overlay_id) {
2305 case IPR_HOST_RCB_OVERLAY_ID_2:
2306 ipr_log_cache_error(ioa_cfg, hostrcb);
2308 case IPR_HOST_RCB_OVERLAY_ID_3:
2309 ipr_log_config_error(ioa_cfg, hostrcb);
2311 case IPR_HOST_RCB_OVERLAY_ID_4:
2312 case IPR_HOST_RCB_OVERLAY_ID_6:
2313 ipr_log_array_error(ioa_cfg, hostrcb);
2315 case IPR_HOST_RCB_OVERLAY_ID_7:
2316 ipr_log_dual_ioa_error(ioa_cfg, hostrcb);
2318 case IPR_HOST_RCB_OVERLAY_ID_12:
2319 ipr_log_enhanced_cache_error(ioa_cfg, hostrcb);
2321 case IPR_HOST_RCB_OVERLAY_ID_13:
2322 ipr_log_enhanced_config_error(ioa_cfg, hostrcb);
2324 case IPR_HOST_RCB_OVERLAY_ID_14:
2325 case IPR_HOST_RCB_OVERLAY_ID_16:
2326 ipr_log_enhanced_array_error(ioa_cfg, hostrcb);
2328 case IPR_HOST_RCB_OVERLAY_ID_17:
2329 ipr_log_enhanced_dual_ioa_error(ioa_cfg, hostrcb);
2331 case IPR_HOST_RCB_OVERLAY_ID_20:
2332 ipr_log_fabric_error(ioa_cfg, hostrcb);
2334 case IPR_HOST_RCB_OVERLAY_ID_23:
2335 ipr_log_sis64_config_error(ioa_cfg, hostrcb);
2337 case IPR_HOST_RCB_OVERLAY_ID_24:
2338 case IPR_HOST_RCB_OVERLAY_ID_26:
2339 ipr_log_sis64_array_error(ioa_cfg, hostrcb);
2341 case IPR_HOST_RCB_OVERLAY_ID_30:
2342 ipr_log_sis64_fabric_error(ioa_cfg, hostrcb);
2344 case IPR_HOST_RCB_OVERLAY_ID_1:
2345 case IPR_HOST_RCB_OVERLAY_ID_DEFAULT:
2347 ipr_log_generic_error(ioa_cfg, hostrcb);
2353 * ipr_process_error - Op done function for an adapter error log.
2354 * @ipr_cmd: ipr command struct
2356 * This function is the op done function for an error log host
2357 * controlled async from the adapter. It will log the error and
2358 * send the HCAM back to the adapter.
2363 static void ipr_process_error(struct ipr_cmnd *ipr_cmd)
2365 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
2366 struct ipr_hostrcb *hostrcb = ipr_cmd->u.hostrcb;
2367 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
2371 fd_ioasc = be32_to_cpu(hostrcb->hcam.u.error64.fd_ioasc);
2373 fd_ioasc = be32_to_cpu(hostrcb->hcam.u.error.fd_ioasc);
2375 list_del(&hostrcb->queue);
2376 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
2379 ipr_handle_log_data(ioa_cfg, hostrcb);
2380 if (fd_ioasc == IPR_IOASC_NR_IOA_RESET_REQUIRED)
2381 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_ABBREV);
2382 } else if (ioasc != IPR_IOASC_IOA_WAS_RESET) {
2383 dev_err(&ioa_cfg->pdev->dev,
2384 "Host RCB failed with IOASC: 0x%08X\n", ioasc);
2387 ipr_send_hcam(ioa_cfg, IPR_HCAM_CDB_OP_CODE_LOG_DATA, hostrcb);
2391 * ipr_timeout - An internally generated op has timed out.
2392 * @ipr_cmd: ipr command struct
2394 * This function blocks host requests and initiates an
2400 static void ipr_timeout(struct ipr_cmnd *ipr_cmd)
2402 unsigned long lock_flags = 0;
2403 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
2406 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
2408 ioa_cfg->errors_logged++;
2409 dev_err(&ioa_cfg->pdev->dev,
2410 "Adapter being reset due to command timeout.\n");
2412 if (WAIT_FOR_DUMP == ioa_cfg->sdt_state)
2413 ioa_cfg->sdt_state = GET_DUMP;
2415 if (!ioa_cfg->in_reset_reload || ioa_cfg->reset_cmd == ipr_cmd)
2416 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
2418 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
2423 * ipr_oper_timeout - Adapter timed out transitioning to operational
2424 * @ipr_cmd: ipr command struct
2426 * This function blocks host requests and initiates an
2432 static void ipr_oper_timeout(struct ipr_cmnd *ipr_cmd)
2434 unsigned long lock_flags = 0;
2435 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
2438 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
2440 ioa_cfg->errors_logged++;
2441 dev_err(&ioa_cfg->pdev->dev,
2442 "Adapter timed out transitioning to operational.\n");
2444 if (WAIT_FOR_DUMP == ioa_cfg->sdt_state)
2445 ioa_cfg->sdt_state = GET_DUMP;
2447 if (!ioa_cfg->in_reset_reload || ioa_cfg->reset_cmd == ipr_cmd) {
2449 ioa_cfg->reset_retries += IPR_NUM_RESET_RELOAD_RETRIES;
2450 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
2453 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
2458 * ipr_reset_reload - Reset/Reload the IOA
2459 * @ioa_cfg: ioa config struct
2460 * @shutdown_type: shutdown type
2462 * This function resets the adapter and re-initializes it.
2463 * This function assumes that all new host commands have been stopped.
2467 static int ipr_reset_reload(struct ipr_ioa_cfg *ioa_cfg,
2468 enum ipr_shutdown_type shutdown_type)
2470 if (!ioa_cfg->in_reset_reload)
2471 ipr_initiate_ioa_reset(ioa_cfg, shutdown_type);
2473 spin_unlock_irq(ioa_cfg->host->host_lock);
2474 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
2475 spin_lock_irq(ioa_cfg->host->host_lock);
2477 /* If we got hit with a host reset while we were already resetting
2478 the adapter for some reason, and the reset failed. */
2479 if (ioa_cfg->ioa_is_dead) {
2488 * ipr_find_ses_entry - Find matching SES in SES table
2489 * @res: resource entry struct of SES
2492 * pointer to SES table entry / NULL on failure
2494 static const struct ipr_ses_table_entry *
2495 ipr_find_ses_entry(struct ipr_resource_entry *res)
2498 struct ipr_std_inq_vpids *vpids;
2499 const struct ipr_ses_table_entry *ste = ipr_ses_table;
2501 for (i = 0; i < ARRAY_SIZE(ipr_ses_table); i++, ste++) {
2502 for (j = 0, matches = 0; j < IPR_PROD_ID_LEN; j++) {
2503 if (ste->compare_product_id_byte[j] == 'X') {
2504 vpids = &res->std_inq_data.vpids;
2505 if (vpids->product_id[j] == ste->product_id[j])
2513 if (matches == IPR_PROD_ID_LEN)
2521 * ipr_get_max_scsi_speed - Determine max SCSI speed for a given bus
2522 * @ioa_cfg: ioa config struct
2524 * @bus_width: bus width
2527 * SCSI bus speed in units of 100KHz, 1600 is 160 MHz
2528 * For a 2-byte wide SCSI bus, the maximum transfer speed is
2529 * twice the maximum transfer rate (e.g. for a wide enabled bus,
2530 * max 160MHz = max 320MB/sec).
2532 static u32 ipr_get_max_scsi_speed(struct ipr_ioa_cfg *ioa_cfg, u8 bus, u8 bus_width)
2534 struct ipr_resource_entry *res;
2535 const struct ipr_ses_table_entry *ste;
2536 u32 max_xfer_rate = IPR_MAX_SCSI_RATE(bus_width);
2538 /* Loop through each config table entry in the config table buffer */
2539 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) {
2540 if (!(IPR_IS_SES_DEVICE(res->std_inq_data)))
2543 if (bus != res->bus)
2546 if (!(ste = ipr_find_ses_entry(res)))
2549 max_xfer_rate = (ste->max_bus_speed_limit * 10) / (bus_width / 8);
2552 return max_xfer_rate;
2556 * ipr_wait_iodbg_ack - Wait for an IODEBUG ACK from the IOA
2557 * @ioa_cfg: ioa config struct
2558 * @max_delay: max delay in micro-seconds to wait
2560 * Waits for an IODEBUG ACK from the IOA, doing busy looping.
2563 * 0 on success / other on failure
2565 static int ipr_wait_iodbg_ack(struct ipr_ioa_cfg *ioa_cfg, int max_delay)
2567 volatile u32 pcii_reg;
2570 /* Read interrupt reg until IOA signals IO Debug Acknowledge */
2571 while (delay < max_delay) {
2572 pcii_reg = readl(ioa_cfg->regs.sense_interrupt_reg);
2574 if (pcii_reg & IPR_PCII_IO_DEBUG_ACKNOWLEDGE)
2577 /* udelay cannot be used if delay is more than a few milliseconds */
2578 if ((delay / 1000) > MAX_UDELAY_MS)
2579 mdelay(delay / 1000);
2589 * ipr_get_sis64_dump_data_section - Dump IOA memory
2590 * @ioa_cfg: ioa config struct
2591 * @start_addr: adapter address to dump
2592 * @dest: destination kernel buffer
2593 * @length_in_words: length to dump in 4 byte words
2598 static int ipr_get_sis64_dump_data_section(struct ipr_ioa_cfg *ioa_cfg,
2600 __be32 *dest, u32 length_in_words)
2604 for (i = 0; i < length_in_words; i++) {
2605 writel(start_addr+(i*4), ioa_cfg->regs.dump_addr_reg);
2606 *dest = cpu_to_be32(readl(ioa_cfg->regs.dump_data_reg));
2614 * ipr_get_ldump_data_section - Dump IOA memory
2615 * @ioa_cfg: ioa config struct
2616 * @start_addr: adapter address to dump
2617 * @dest: destination kernel buffer
2618 * @length_in_words: length to dump in 4 byte words
2621 * 0 on success / -EIO on failure
2623 static int ipr_get_ldump_data_section(struct ipr_ioa_cfg *ioa_cfg,
2625 __be32 *dest, u32 length_in_words)
2627 volatile u32 temp_pcii_reg;
2631 return ipr_get_sis64_dump_data_section(ioa_cfg, start_addr,
2632 dest, length_in_words);
2634 /* Write IOA interrupt reg starting LDUMP state */
2635 writel((IPR_UPROCI_RESET_ALERT | IPR_UPROCI_IO_DEBUG_ALERT),
2636 ioa_cfg->regs.set_uproc_interrupt_reg32);
2638 /* Wait for IO debug acknowledge */
2639 if (ipr_wait_iodbg_ack(ioa_cfg,
2640 IPR_LDUMP_MAX_LONG_ACK_DELAY_IN_USEC)) {
2641 dev_err(&ioa_cfg->pdev->dev,
2642 "IOA dump long data transfer timeout\n");
2646 /* Signal LDUMP interlocked - clear IO debug ack */
2647 writel(IPR_PCII_IO_DEBUG_ACKNOWLEDGE,
2648 ioa_cfg->regs.clr_interrupt_reg);
2650 /* Write Mailbox with starting address */
2651 writel(start_addr, ioa_cfg->ioa_mailbox);
2653 /* Signal address valid - clear IOA Reset alert */
2654 writel(IPR_UPROCI_RESET_ALERT,
2655 ioa_cfg->regs.clr_uproc_interrupt_reg32);
2657 for (i = 0; i < length_in_words; i++) {
2658 /* Wait for IO debug acknowledge */
2659 if (ipr_wait_iodbg_ack(ioa_cfg,
2660 IPR_LDUMP_MAX_SHORT_ACK_DELAY_IN_USEC)) {
2661 dev_err(&ioa_cfg->pdev->dev,
2662 "IOA dump short data transfer timeout\n");
2666 /* Read data from mailbox and increment destination pointer */
2667 *dest = cpu_to_be32(readl(ioa_cfg->ioa_mailbox));
2670 /* For all but the last word of data, signal data received */
2671 if (i < (length_in_words - 1)) {
2672 /* Signal dump data received - Clear IO debug Ack */
2673 writel(IPR_PCII_IO_DEBUG_ACKNOWLEDGE,
2674 ioa_cfg->regs.clr_interrupt_reg);
2678 /* Signal end of block transfer. Set reset alert then clear IO debug ack */
2679 writel(IPR_UPROCI_RESET_ALERT,
2680 ioa_cfg->regs.set_uproc_interrupt_reg32);
2682 writel(IPR_UPROCI_IO_DEBUG_ALERT,
2683 ioa_cfg->regs.clr_uproc_interrupt_reg32);
2685 /* Signal dump data received - Clear IO debug Ack */
2686 writel(IPR_PCII_IO_DEBUG_ACKNOWLEDGE,
2687 ioa_cfg->regs.clr_interrupt_reg);
2689 /* Wait for IOA to signal LDUMP exit - IOA reset alert will be cleared */
2690 while (delay < IPR_LDUMP_MAX_SHORT_ACK_DELAY_IN_USEC) {
2692 readl(ioa_cfg->regs.sense_uproc_interrupt_reg32);
2694 if (!(temp_pcii_reg & IPR_UPROCI_RESET_ALERT))
2704 #ifdef CONFIG_SCSI_IPR_DUMP
2706 * ipr_sdt_copy - Copy Smart Dump Table to kernel buffer
2707 * @ioa_cfg: ioa config struct
2708 * @pci_address: adapter address
2709 * @length: length of data to copy
2711 * Copy data from PCI adapter to kernel buffer.
2712 * Note: length MUST be a 4 byte multiple
2714 * 0 on success / other on failure
2716 static int ipr_sdt_copy(struct ipr_ioa_cfg *ioa_cfg,
2717 unsigned long pci_address, u32 length)
2719 int bytes_copied = 0;
2720 int cur_len, rc, rem_len, rem_page_len;
2722 unsigned long lock_flags = 0;
2723 struct ipr_ioa_dump *ioa_dump = &ioa_cfg->dump->ioa_dump;
2725 while (bytes_copied < length &&
2726 (ioa_dump->hdr.len + bytes_copied) < IPR_MAX_IOA_DUMP_SIZE) {
2727 if (ioa_dump->page_offset >= PAGE_SIZE ||
2728 ioa_dump->page_offset == 0) {
2729 page = (__be32 *)__get_free_page(GFP_ATOMIC);
2733 return bytes_copied;
2736 ioa_dump->page_offset = 0;
2737 ioa_dump->ioa_data[ioa_dump->next_page_index] = page;
2738 ioa_dump->next_page_index++;
2740 page = ioa_dump->ioa_data[ioa_dump->next_page_index - 1];
2742 rem_len = length - bytes_copied;
2743 rem_page_len = PAGE_SIZE - ioa_dump->page_offset;
2744 cur_len = min(rem_len, rem_page_len);
2746 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
2747 if (ioa_cfg->sdt_state == ABORT_DUMP) {
2750 rc = ipr_get_ldump_data_section(ioa_cfg,
2751 pci_address + bytes_copied,
2752 &page[ioa_dump->page_offset / 4],
2753 (cur_len / sizeof(u32)));
2755 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
2758 ioa_dump->page_offset += cur_len;
2759 bytes_copied += cur_len;
2767 return bytes_copied;
2771 * ipr_init_dump_entry_hdr - Initialize a dump entry header.
2772 * @hdr: dump entry header struct
2777 static void ipr_init_dump_entry_hdr(struct ipr_dump_entry_header *hdr)
2779 hdr->eye_catcher = IPR_DUMP_EYE_CATCHER;
2781 hdr->offset = sizeof(*hdr);
2782 hdr->status = IPR_DUMP_STATUS_SUCCESS;
2786 * ipr_dump_ioa_type_data - Fill in the adapter type in the dump.
2787 * @ioa_cfg: ioa config struct
2788 * @driver_dump: driver dump struct
2793 static void ipr_dump_ioa_type_data(struct ipr_ioa_cfg *ioa_cfg,
2794 struct ipr_driver_dump *driver_dump)
2796 struct ipr_inquiry_page3 *ucode_vpd = &ioa_cfg->vpd_cbs->page3_data;
2798 ipr_init_dump_entry_hdr(&driver_dump->ioa_type_entry.hdr);
2799 driver_dump->ioa_type_entry.hdr.len =
2800 sizeof(struct ipr_dump_ioa_type_entry) -
2801 sizeof(struct ipr_dump_entry_header);
2802 driver_dump->ioa_type_entry.hdr.data_type = IPR_DUMP_DATA_TYPE_BINARY;
2803 driver_dump->ioa_type_entry.hdr.id = IPR_DUMP_DRIVER_TYPE_ID;
2804 driver_dump->ioa_type_entry.type = ioa_cfg->type;
2805 driver_dump->ioa_type_entry.fw_version = (ucode_vpd->major_release << 24) |
2806 (ucode_vpd->card_type << 16) | (ucode_vpd->minor_release[0] << 8) |
2807 ucode_vpd->minor_release[1];
2808 driver_dump->hdr.num_entries++;
2812 * ipr_dump_version_data - Fill in the driver version in the dump.
2813 * @ioa_cfg: ioa config struct
2814 * @driver_dump: driver dump struct
2819 static void ipr_dump_version_data(struct ipr_ioa_cfg *ioa_cfg,
2820 struct ipr_driver_dump *driver_dump)
2822 ipr_init_dump_entry_hdr(&driver_dump->version_entry.hdr);
2823 driver_dump->version_entry.hdr.len =
2824 sizeof(struct ipr_dump_version_entry) -
2825 sizeof(struct ipr_dump_entry_header);
2826 driver_dump->version_entry.hdr.data_type = IPR_DUMP_DATA_TYPE_ASCII;
2827 driver_dump->version_entry.hdr.id = IPR_DUMP_DRIVER_VERSION_ID;
2828 strcpy(driver_dump->version_entry.version, IPR_DRIVER_VERSION);
2829 driver_dump->hdr.num_entries++;
2833 * ipr_dump_trace_data - Fill in the IOA trace in the dump.
2834 * @ioa_cfg: ioa config struct
2835 * @driver_dump: driver dump struct
2840 static void ipr_dump_trace_data(struct ipr_ioa_cfg *ioa_cfg,
2841 struct ipr_driver_dump *driver_dump)
2843 ipr_init_dump_entry_hdr(&driver_dump->trace_entry.hdr);
2844 driver_dump->trace_entry.hdr.len =
2845 sizeof(struct ipr_dump_trace_entry) -
2846 sizeof(struct ipr_dump_entry_header);
2847 driver_dump->trace_entry.hdr.data_type = IPR_DUMP_DATA_TYPE_BINARY;
2848 driver_dump->trace_entry.hdr.id = IPR_DUMP_TRACE_ID;
2849 memcpy(driver_dump->trace_entry.trace, ioa_cfg->trace, IPR_TRACE_SIZE);
2850 driver_dump->hdr.num_entries++;
2854 * ipr_dump_location_data - Fill in the IOA location in the dump.
2855 * @ioa_cfg: ioa config struct
2856 * @driver_dump: driver dump struct
2861 static void ipr_dump_location_data(struct ipr_ioa_cfg *ioa_cfg,
2862 struct ipr_driver_dump *driver_dump)
2864 ipr_init_dump_entry_hdr(&driver_dump->location_entry.hdr);
2865 driver_dump->location_entry.hdr.len =
2866 sizeof(struct ipr_dump_location_entry) -
2867 sizeof(struct ipr_dump_entry_header);
2868 driver_dump->location_entry.hdr.data_type = IPR_DUMP_DATA_TYPE_ASCII;
2869 driver_dump->location_entry.hdr.id = IPR_DUMP_LOCATION_ID;
2870 strcpy(driver_dump->location_entry.location, dev_name(&ioa_cfg->pdev->dev));
2871 driver_dump->hdr.num_entries++;
2875 * ipr_get_ioa_dump - Perform a dump of the driver and adapter.
2876 * @ioa_cfg: ioa config struct
2877 * @dump: dump struct
2882 static void ipr_get_ioa_dump(struct ipr_ioa_cfg *ioa_cfg, struct ipr_dump *dump)
2884 unsigned long start_addr, sdt_word;
2885 unsigned long lock_flags = 0;
2886 struct ipr_driver_dump *driver_dump = &dump->driver_dump;
2887 struct ipr_ioa_dump *ioa_dump = &dump->ioa_dump;
2888 u32 num_entries, start_off, end_off;
2889 u32 bytes_to_copy, bytes_copied, rc;
2890 struct ipr_sdt *sdt;
2896 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
2898 if (ioa_cfg->sdt_state != GET_DUMP) {
2899 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
2903 start_addr = readl(ioa_cfg->ioa_mailbox);
2905 if (!ioa_cfg->sis64 && !ipr_sdt_is_fmt2(start_addr)) {
2906 dev_err(&ioa_cfg->pdev->dev,
2907 "Invalid dump table format: %lx\n", start_addr);
2908 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
2912 dev_err(&ioa_cfg->pdev->dev, "Dump of IOA initiated\n");
2914 driver_dump->hdr.eye_catcher = IPR_DUMP_EYE_CATCHER;
2916 /* Initialize the overall dump header */
2917 driver_dump->hdr.len = sizeof(struct ipr_driver_dump);
2918 driver_dump->hdr.num_entries = 1;
2919 driver_dump->hdr.first_entry_offset = sizeof(struct ipr_dump_header);
2920 driver_dump->hdr.status = IPR_DUMP_STATUS_SUCCESS;
2921 driver_dump->hdr.os = IPR_DUMP_OS_LINUX;
2922 driver_dump->hdr.driver_name = IPR_DUMP_DRIVER_NAME;
2924 ipr_dump_version_data(ioa_cfg, driver_dump);
2925 ipr_dump_location_data(ioa_cfg, driver_dump);
2926 ipr_dump_ioa_type_data(ioa_cfg, driver_dump);
2927 ipr_dump_trace_data(ioa_cfg, driver_dump);
2929 /* Update dump_header */
2930 driver_dump->hdr.len += sizeof(struct ipr_dump_entry_header);
2932 /* IOA Dump entry */
2933 ipr_init_dump_entry_hdr(&ioa_dump->hdr);
2934 ioa_dump->hdr.len = 0;
2935 ioa_dump->hdr.data_type = IPR_DUMP_DATA_TYPE_BINARY;
2936 ioa_dump->hdr.id = IPR_DUMP_IOA_DUMP_ID;
2938 /* First entries in sdt are actually a list of dump addresses and
2939 lengths to gather the real dump data. sdt represents the pointer
2940 to the ioa generated dump table. Dump data will be extracted based
2941 on entries in this table */
2942 sdt = &ioa_dump->sdt;
2944 rc = ipr_get_ldump_data_section(ioa_cfg, start_addr, (__be32 *)sdt,
2945 sizeof(struct ipr_sdt) / sizeof(__be32));
2947 /* Smart Dump table is ready to use and the first entry is valid */
2948 if (rc || ((be32_to_cpu(sdt->hdr.state) != IPR_FMT3_SDT_READY_TO_USE) &&
2949 (be32_to_cpu(sdt->hdr.state) != IPR_FMT2_SDT_READY_TO_USE))) {
2950 dev_err(&ioa_cfg->pdev->dev,
2951 "Dump of IOA failed. Dump table not valid: %d, %X.\n",
2952 rc, be32_to_cpu(sdt->hdr.state));
2953 driver_dump->hdr.status = IPR_DUMP_STATUS_FAILED;
2954 ioa_cfg->sdt_state = DUMP_OBTAINED;
2955 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
2959 num_entries = be32_to_cpu(sdt->hdr.num_entries_used);
2961 if (num_entries > IPR_NUM_SDT_ENTRIES)
2962 num_entries = IPR_NUM_SDT_ENTRIES;
2964 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
2966 for (i = 0; i < num_entries; i++) {
2967 if (ioa_dump->hdr.len > IPR_MAX_IOA_DUMP_SIZE) {
2968 driver_dump->hdr.status = IPR_DUMP_STATUS_QUAL_SUCCESS;
2972 if (sdt->entry[i].flags & IPR_SDT_VALID_ENTRY) {
2973 sdt_word = be32_to_cpu(sdt->entry[i].start_token);
2975 bytes_to_copy = be32_to_cpu(sdt->entry[i].end_token);
2977 start_off = sdt_word & IPR_FMT2_MBX_ADDR_MASK;
2978 end_off = be32_to_cpu(sdt->entry[i].end_token);
2980 if (ipr_sdt_is_fmt2(sdt_word) && sdt_word)
2981 bytes_to_copy = end_off - start_off;
2986 if (bytes_to_copy > IPR_MAX_IOA_DUMP_SIZE) {
2987 sdt->entry[i].flags &= ~IPR_SDT_VALID_ENTRY;
2991 /* Copy data from adapter to driver buffers */
2992 bytes_copied = ipr_sdt_copy(ioa_cfg, sdt_word,
2995 ioa_dump->hdr.len += bytes_copied;
2997 if (bytes_copied != bytes_to_copy) {
2998 driver_dump->hdr.status = IPR_DUMP_STATUS_QUAL_SUCCESS;
3005 dev_err(&ioa_cfg->pdev->dev, "Dump of IOA completed.\n");
3007 /* Update dump_header */
3008 driver_dump->hdr.len += ioa_dump->hdr.len;
3010 ioa_cfg->sdt_state = DUMP_OBTAINED;
3015 #define ipr_get_ioa_dump(ioa_cfg, dump) do { } while(0)
3019 * ipr_release_dump - Free adapter dump memory
3020 * @kref: kref struct
3025 static void ipr_release_dump(struct kref *kref)
3027 struct ipr_dump *dump = container_of(kref,struct ipr_dump,kref);
3028 struct ipr_ioa_cfg *ioa_cfg = dump->ioa_cfg;
3029 unsigned long lock_flags = 0;
3033 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3034 ioa_cfg->dump = NULL;
3035 ioa_cfg->sdt_state = INACTIVE;
3036 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3038 for (i = 0; i < dump->ioa_dump.next_page_index; i++)
3039 free_page((unsigned long) dump->ioa_dump.ioa_data[i]);
3046 * ipr_worker_thread - Worker thread
3047 * @work: ioa config struct
3049 * Called at task level from a work thread. This function takes care
3050 * of adding and removing device from the mid-layer as configuration
3051 * changes are detected by the adapter.
3056 static void ipr_worker_thread(struct work_struct *work)
3058 unsigned long lock_flags;
3059 struct ipr_resource_entry *res;
3060 struct scsi_device *sdev;
3061 struct ipr_dump *dump;
3062 struct ipr_ioa_cfg *ioa_cfg =
3063 container_of(work, struct ipr_ioa_cfg, work_q);
3064 u8 bus, target, lun;
3068 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3070 if (ioa_cfg->sdt_state == GET_DUMP) {
3071 dump = ioa_cfg->dump;
3073 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3076 kref_get(&dump->kref);
3077 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3078 ipr_get_ioa_dump(ioa_cfg, dump);
3079 kref_put(&dump->kref, ipr_release_dump);
3081 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3082 if (ioa_cfg->sdt_state == DUMP_OBTAINED)
3083 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
3084 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3091 if (!ioa_cfg->allow_cmds || !ioa_cfg->allow_ml_add_del) {
3092 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3096 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) {
3097 if (res->del_from_ml && res->sdev) {
3100 if (!scsi_device_get(sdev)) {
3101 list_move_tail(&res->queue, &ioa_cfg->free_res_q);
3102 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3103 scsi_remove_device(sdev);
3104 scsi_device_put(sdev);
3105 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3112 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) {
3113 if (res->add_to_ml) {
3115 target = res->target;
3118 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3119 scsi_add_device(ioa_cfg->host, bus, target, lun);
3120 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3125 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3126 kobject_uevent(&ioa_cfg->host->shost_dev.kobj, KOBJ_CHANGE);
3130 #ifdef CONFIG_SCSI_IPR_TRACE
3132 * ipr_read_trace - Dump the adapter trace
3133 * @filp: open sysfs file
3134 * @kobj: kobject struct
3135 * @bin_attr: bin_attribute struct
3138 * @count: buffer size
3141 * number of bytes printed to buffer
3143 static ssize_t ipr_read_trace(struct file *filp, struct kobject *kobj,
3144 struct bin_attribute *bin_attr,
3145 char *buf, loff_t off, size_t count)
3147 struct device *dev = container_of(kobj, struct device, kobj);
3148 struct Scsi_Host *shost = class_to_shost(dev);
3149 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
3150 unsigned long lock_flags = 0;
3153 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3154 ret = memory_read_from_buffer(buf, count, &off, ioa_cfg->trace,
3156 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3161 static struct bin_attribute ipr_trace_attr = {
3167 .read = ipr_read_trace,
3172 * ipr_show_fw_version - Show the firmware version
3173 * @dev: class device struct
3177 * number of bytes printed to buffer
3179 static ssize_t ipr_show_fw_version(struct device *dev,
3180 struct device_attribute *attr, char *buf)
3182 struct Scsi_Host *shost = class_to_shost(dev);
3183 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
3184 struct ipr_inquiry_page3 *ucode_vpd = &ioa_cfg->vpd_cbs->page3_data;
3185 unsigned long lock_flags = 0;
3188 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3189 len = snprintf(buf, PAGE_SIZE, "%02X%02X%02X%02X\n",
3190 ucode_vpd->major_release, ucode_vpd->card_type,
3191 ucode_vpd->minor_release[0],
3192 ucode_vpd->minor_release[1]);
3193 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3197 static struct device_attribute ipr_fw_version_attr = {
3199 .name = "fw_version",
3202 .show = ipr_show_fw_version,
3206 * ipr_show_log_level - Show the adapter's error logging level
3207 * @dev: class device struct
3211 * number of bytes printed to buffer
3213 static ssize_t ipr_show_log_level(struct device *dev,
3214 struct device_attribute *attr, char *buf)
3216 struct Scsi_Host *shost = class_to_shost(dev);
3217 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
3218 unsigned long lock_flags = 0;
3221 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3222 len = snprintf(buf, PAGE_SIZE, "%d\n", ioa_cfg->log_level);
3223 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3228 * ipr_store_log_level - Change the adapter's error logging level
3229 * @dev: class device struct
3233 * number of bytes printed to buffer
3235 static ssize_t ipr_store_log_level(struct device *dev,
3236 struct device_attribute *attr,
3237 const char *buf, size_t count)
3239 struct Scsi_Host *shost = class_to_shost(dev);
3240 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
3241 unsigned long lock_flags = 0;
3243 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3244 ioa_cfg->log_level = simple_strtoul(buf, NULL, 10);
3245 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3249 static struct device_attribute ipr_log_level_attr = {
3251 .name = "log_level",
3252 .mode = S_IRUGO | S_IWUSR,
3254 .show = ipr_show_log_level,
3255 .store = ipr_store_log_level
3259 * ipr_store_diagnostics - IOA Diagnostics interface
3260 * @dev: device struct
3262 * @count: buffer size
3264 * This function will reset the adapter and wait a reasonable
3265 * amount of time for any errors that the adapter might log.
3268 * count on success / other on failure
3270 static ssize_t ipr_store_diagnostics(struct device *dev,
3271 struct device_attribute *attr,
3272 const char *buf, size_t count)
3274 struct Scsi_Host *shost = class_to_shost(dev);
3275 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
3276 unsigned long lock_flags = 0;
3279 if (!capable(CAP_SYS_ADMIN))
3282 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3283 while(ioa_cfg->in_reset_reload) {
3284 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3285 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
3286 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3289 ioa_cfg->errors_logged = 0;
3290 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NORMAL);
3292 if (ioa_cfg->in_reset_reload) {
3293 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3294 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
3296 /* Wait for a second for any errors to be logged */
3299 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3303 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3304 if (ioa_cfg->in_reset_reload || ioa_cfg->errors_logged)
3306 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3311 static struct device_attribute ipr_diagnostics_attr = {
3313 .name = "run_diagnostics",
3316 .store = ipr_store_diagnostics
3320 * ipr_show_adapter_state - Show the adapter's state
3321 * @class_dev: device struct
3325 * number of bytes printed to buffer
3327 static ssize_t ipr_show_adapter_state(struct device *dev,
3328 struct device_attribute *attr, char *buf)
3330 struct Scsi_Host *shost = class_to_shost(dev);
3331 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
3332 unsigned long lock_flags = 0;
3335 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3336 if (ioa_cfg->ioa_is_dead)
3337 len = snprintf(buf, PAGE_SIZE, "offline\n");
3339 len = snprintf(buf, PAGE_SIZE, "online\n");
3340 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3345 * ipr_store_adapter_state - Change adapter state
3346 * @dev: device struct
3348 * @count: buffer size
3350 * This function will change the adapter's state.
3353 * count on success / other on failure
3355 static ssize_t ipr_store_adapter_state(struct device *dev,
3356 struct device_attribute *attr,
3357 const char *buf, size_t count)
3359 struct Scsi_Host *shost = class_to_shost(dev);
3360 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
3361 unsigned long lock_flags;
3364 if (!capable(CAP_SYS_ADMIN))
3367 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3368 if (ioa_cfg->ioa_is_dead && !strncmp(buf, "online", 6)) {
3369 ioa_cfg->ioa_is_dead = 0;
3370 ioa_cfg->reset_retries = 0;
3371 ioa_cfg->in_ioa_bringdown = 0;
3372 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
3374 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3375 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
3380 static struct device_attribute ipr_ioa_state_attr = {
3382 .name = "online_state",
3383 .mode = S_IRUGO | S_IWUSR,
3385 .show = ipr_show_adapter_state,
3386 .store = ipr_store_adapter_state
3390 * ipr_store_reset_adapter - Reset the adapter
3391 * @dev: device struct
3393 * @count: buffer size
3395 * This function will reset the adapter.
3398 * count on success / other on failure
3400 static ssize_t ipr_store_reset_adapter(struct device *dev,
3401 struct device_attribute *attr,
3402 const char *buf, size_t count)
3404 struct Scsi_Host *shost = class_to_shost(dev);
3405 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
3406 unsigned long lock_flags;
3409 if (!capable(CAP_SYS_ADMIN))
3412 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3413 if (!ioa_cfg->in_reset_reload)
3414 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NORMAL);
3415 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3416 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
3421 static struct device_attribute ipr_ioa_reset_attr = {
3423 .name = "reset_host",
3426 .store = ipr_store_reset_adapter
3430 * ipr_alloc_ucode_buffer - Allocates a microcode download buffer
3431 * @buf_len: buffer length
3433 * Allocates a DMA'able buffer in chunks and assembles a scatter/gather
3434 * list to use for microcode download
3437 * pointer to sglist / NULL on failure
3439 static struct ipr_sglist *ipr_alloc_ucode_buffer(int buf_len)
3441 int sg_size, order, bsize_elem, num_elem, i, j;
3442 struct ipr_sglist *sglist;
3443 struct scatterlist *scatterlist;
3446 /* Get the minimum size per scatter/gather element */
3447 sg_size = buf_len / (IPR_MAX_SGLIST - 1);
3449 /* Get the actual size per element */
3450 order = get_order(sg_size);
3452 /* Determine the actual number of bytes per element */
3453 bsize_elem = PAGE_SIZE * (1 << order);
3455 /* Determine the actual number of sg entries needed */
3456 if (buf_len % bsize_elem)
3457 num_elem = (buf_len / bsize_elem) + 1;
3459 num_elem = buf_len / bsize_elem;
3461 /* Allocate a scatter/gather list for the DMA */
3462 sglist = kzalloc(sizeof(struct ipr_sglist) +
3463 (sizeof(struct scatterlist) * (num_elem - 1)),
3466 if (sglist == NULL) {
3471 scatterlist = sglist->scatterlist;
3472 sg_init_table(scatterlist, num_elem);
3474 sglist->order = order;
3475 sglist->num_sg = num_elem;
3477 /* Allocate a bunch of sg elements */
3478 for (i = 0; i < num_elem; i++) {
3479 page = alloc_pages(GFP_KERNEL, order);
3483 /* Free up what we already allocated */
3484 for (j = i - 1; j >= 0; j--)
3485 __free_pages(sg_page(&scatterlist[j]), order);
3490 sg_set_page(&scatterlist[i], page, 0, 0);
3497 * ipr_free_ucode_buffer - Frees a microcode download buffer
3498 * @p_dnld: scatter/gather list pointer
3500 * Free a DMA'able ucode download buffer previously allocated with
3501 * ipr_alloc_ucode_buffer
3506 static void ipr_free_ucode_buffer(struct ipr_sglist *sglist)
3510 for (i = 0; i < sglist->num_sg; i++)
3511 __free_pages(sg_page(&sglist->scatterlist[i]), sglist->order);
3517 * ipr_copy_ucode_buffer - Copy user buffer to kernel buffer
3518 * @sglist: scatter/gather list pointer
3519 * @buffer: buffer pointer
3520 * @len: buffer length
3522 * Copy a microcode image from a user buffer into a buffer allocated by
3523 * ipr_alloc_ucode_buffer
3526 * 0 on success / other on failure
3528 static int ipr_copy_ucode_buffer(struct ipr_sglist *sglist,
3529 u8 *buffer, u32 len)
3531 int bsize_elem, i, result = 0;
3532 struct scatterlist *scatterlist;
3535 /* Determine the actual number of bytes per element */
3536 bsize_elem = PAGE_SIZE * (1 << sglist->order);
3538 scatterlist = sglist->scatterlist;
3540 for (i = 0; i < (len / bsize_elem); i++, buffer += bsize_elem) {
3541 struct page *page = sg_page(&scatterlist[i]);
3544 memcpy(kaddr, buffer, bsize_elem);
3547 scatterlist[i].length = bsize_elem;
3555 if (len % bsize_elem) {
3556 struct page *page = sg_page(&scatterlist[i]);
3559 memcpy(kaddr, buffer, len % bsize_elem);
3562 scatterlist[i].length = len % bsize_elem;
3565 sglist->buffer_len = len;
3570 * ipr_build_ucode_ioadl64 - Build a microcode download IOADL
3571 * @ipr_cmd: ipr command struct
3572 * @sglist: scatter/gather list
3574 * Builds a microcode download IOA data list (IOADL).
3577 static void ipr_build_ucode_ioadl64(struct ipr_cmnd *ipr_cmd,
3578 struct ipr_sglist *sglist)
3580 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
3581 struct ipr_ioadl64_desc *ioadl64 = ipr_cmd->i.ioadl64;
3582 struct scatterlist *scatterlist = sglist->scatterlist;
3585 ipr_cmd->dma_use_sg = sglist->num_dma_sg;
3586 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ;
3587 ioarcb->data_transfer_length = cpu_to_be32(sglist->buffer_len);
3590 cpu_to_be32(sizeof(struct ipr_ioadl64_desc) * ipr_cmd->dma_use_sg);
3591 for (i = 0; i < ipr_cmd->dma_use_sg; i++) {
3592 ioadl64[i].flags = cpu_to_be32(IPR_IOADL_FLAGS_WRITE);
3593 ioadl64[i].data_len = cpu_to_be32(sg_dma_len(&scatterlist[i]));
3594 ioadl64[i].address = cpu_to_be64(sg_dma_address(&scatterlist[i]));
3597 ioadl64[i-1].flags |= cpu_to_be32(IPR_IOADL_FLAGS_LAST);
3601 * ipr_build_ucode_ioadl - Build a microcode download IOADL
3602 * @ipr_cmd: ipr command struct
3603 * @sglist: scatter/gather list
3605 * Builds a microcode download IOA data list (IOADL).
3608 static void ipr_build_ucode_ioadl(struct ipr_cmnd *ipr_cmd,
3609 struct ipr_sglist *sglist)
3611 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
3612 struct ipr_ioadl_desc *ioadl = ipr_cmd->i.ioadl;
3613 struct scatterlist *scatterlist = sglist->scatterlist;
3616 ipr_cmd->dma_use_sg = sglist->num_dma_sg;
3617 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ;
3618 ioarcb->data_transfer_length = cpu_to_be32(sglist->buffer_len);
3621 cpu_to_be32(sizeof(struct ipr_ioadl_desc) * ipr_cmd->dma_use_sg);
3623 for (i = 0; i < ipr_cmd->dma_use_sg; i++) {
3624 ioadl[i].flags_and_data_len =
3625 cpu_to_be32(IPR_IOADL_FLAGS_WRITE | sg_dma_len(&scatterlist[i]));
3627 cpu_to_be32(sg_dma_address(&scatterlist[i]));
3630 ioadl[i-1].flags_and_data_len |=
3631 cpu_to_be32(IPR_IOADL_FLAGS_LAST);
3635 * ipr_update_ioa_ucode - Update IOA's microcode
3636 * @ioa_cfg: ioa config struct
3637 * @sglist: scatter/gather list
3639 * Initiate an adapter reset to update the IOA's microcode
3642 * 0 on success / -EIO on failure
3644 static int ipr_update_ioa_ucode(struct ipr_ioa_cfg *ioa_cfg,
3645 struct ipr_sglist *sglist)
3647 unsigned long lock_flags;
3649 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3650 while(ioa_cfg->in_reset_reload) {
3651 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3652 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
3653 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3656 if (ioa_cfg->ucode_sglist) {
3657 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3658 dev_err(&ioa_cfg->pdev->dev,
3659 "Microcode download already in progress\n");
3663 sglist->num_dma_sg = pci_map_sg(ioa_cfg->pdev, sglist->scatterlist,
3664 sglist->num_sg, DMA_TO_DEVICE);
3666 if (!sglist->num_dma_sg) {
3667 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3668 dev_err(&ioa_cfg->pdev->dev,
3669 "Failed to map microcode download buffer!\n");
3673 ioa_cfg->ucode_sglist = sglist;
3674 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NORMAL);
3675 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3676 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
3678 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3679 ioa_cfg->ucode_sglist = NULL;
3680 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3685 * ipr_store_update_fw - Update the firmware on the adapter
3686 * @class_dev: device struct
3688 * @count: buffer size
3690 * This function will update the firmware on the adapter.
3693 * count on success / other on failure
3695 static ssize_t ipr_store_update_fw(struct device *dev,
3696 struct device_attribute *attr,
3697 const char *buf, size_t count)
3699 struct Scsi_Host *shost = class_to_shost(dev);
3700 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
3701 struct ipr_ucode_image_header *image_hdr;
3702 const struct firmware *fw_entry;
3703 struct ipr_sglist *sglist;
3706 int len, result, dnld_size;
3708 if (!capable(CAP_SYS_ADMIN))
3711 len = snprintf(fname, 99, "%s", buf);
3712 fname[len-1] = '\0';
3714 if(request_firmware(&fw_entry, fname, &ioa_cfg->pdev->dev)) {
3715 dev_err(&ioa_cfg->pdev->dev, "Firmware file %s not found\n", fname);
3719 image_hdr = (struct ipr_ucode_image_header *)fw_entry->data;
3721 if (be32_to_cpu(image_hdr->header_length) > fw_entry->size ||
3722 (ioa_cfg->vpd_cbs->page3_data.card_type &&
3723 ioa_cfg->vpd_cbs->page3_data.card_type != image_hdr->card_type)) {
3724 dev_err(&ioa_cfg->pdev->dev, "Invalid microcode buffer\n");
3725 release_firmware(fw_entry);
3729 src = (u8 *)image_hdr + be32_to_cpu(image_hdr->header_length);
3730 dnld_size = fw_entry->size - be32_to_cpu(image_hdr->header_length);
3731 sglist = ipr_alloc_ucode_buffer(dnld_size);
3734 dev_err(&ioa_cfg->pdev->dev, "Microcode buffer allocation failed\n");
3735 release_firmware(fw_entry);
3739 result = ipr_copy_ucode_buffer(sglist, src, dnld_size);
3742 dev_err(&ioa_cfg->pdev->dev,
3743 "Microcode buffer copy to DMA buffer failed\n");
3747 result = ipr_update_ioa_ucode(ioa_cfg, sglist);
3752 ipr_free_ucode_buffer(sglist);
3753 release_firmware(fw_entry);
3757 static struct device_attribute ipr_update_fw_attr = {
3759 .name = "update_fw",
3762 .store = ipr_store_update_fw
3765 static struct device_attribute *ipr_ioa_attrs[] = {
3766 &ipr_fw_version_attr,
3767 &ipr_log_level_attr,
3768 &ipr_diagnostics_attr,
3769 &ipr_ioa_state_attr,
3770 &ipr_ioa_reset_attr,
3771 &ipr_update_fw_attr,
3775 #ifdef CONFIG_SCSI_IPR_DUMP
3777 * ipr_read_dump - Dump the adapter
3778 * @filp: open sysfs file
3779 * @kobj: kobject struct
3780 * @bin_attr: bin_attribute struct
3783 * @count: buffer size
3786 * number of bytes printed to buffer
3788 static ssize_t ipr_read_dump(struct file *filp, struct kobject *kobj,
3789 struct bin_attribute *bin_attr,
3790 char *buf, loff_t off, size_t count)
3792 struct device *cdev = container_of(kobj, struct device, kobj);
3793 struct Scsi_Host *shost = class_to_shost(cdev);
3794 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
3795 struct ipr_dump *dump;
3796 unsigned long lock_flags = 0;
3801 if (!capable(CAP_SYS_ADMIN))
3804 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3805 dump = ioa_cfg->dump;
3807 if (ioa_cfg->sdt_state != DUMP_OBTAINED || !dump) {
3808 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3811 kref_get(&dump->kref);
3812 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3814 if (off > dump->driver_dump.hdr.len) {
3815 kref_put(&dump->kref, ipr_release_dump);
3819 if (off + count > dump->driver_dump.hdr.len) {
3820 count = dump->driver_dump.hdr.len - off;
3824 if (count && off < sizeof(dump->driver_dump)) {
3825 if (off + count > sizeof(dump->driver_dump))
3826 len = sizeof(dump->driver_dump) - off;
3829 src = (u8 *)&dump->driver_dump + off;
3830 memcpy(buf, src, len);
3836 off -= sizeof(dump->driver_dump);
3838 if (count && off < offsetof(struct ipr_ioa_dump, ioa_data)) {
3839 if (off + count > offsetof(struct ipr_ioa_dump, ioa_data))
3840 len = offsetof(struct ipr_ioa_dump, ioa_data) - off;
3843 src = (u8 *)&dump->ioa_dump + off;
3844 memcpy(buf, src, len);
3850 off -= offsetof(struct ipr_ioa_dump, ioa_data);
3853 if ((off & PAGE_MASK) != ((off + count) & PAGE_MASK))
3854 len = PAGE_ALIGN(off) - off;
3857 src = (u8 *)dump->ioa_dump.ioa_data[(off & PAGE_MASK) >> PAGE_SHIFT];
3858 src += off & ~PAGE_MASK;
3859 memcpy(buf, src, len);
3865 kref_put(&dump->kref, ipr_release_dump);
3870 * ipr_alloc_dump - Prepare for adapter dump
3871 * @ioa_cfg: ioa config struct
3874 * 0 on success / other on failure
3876 static int ipr_alloc_dump(struct ipr_ioa_cfg *ioa_cfg)
3878 struct ipr_dump *dump;
3879 unsigned long lock_flags = 0;
3881 dump = kzalloc(sizeof(struct ipr_dump), GFP_KERNEL);
3884 ipr_err("Dump memory allocation failed\n");
3888 kref_init(&dump->kref);
3889 dump->ioa_cfg = ioa_cfg;
3891 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3893 if (INACTIVE != ioa_cfg->sdt_state) {
3894 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3899 ioa_cfg->dump = dump;
3900 ioa_cfg->sdt_state = WAIT_FOR_DUMP;
3901 if (ioa_cfg->ioa_is_dead && !ioa_cfg->dump_taken) {
3902 ioa_cfg->dump_taken = 1;
3903 schedule_work(&ioa_cfg->work_q);
3905 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3911 * ipr_free_dump - Free adapter dump memory
3912 * @ioa_cfg: ioa config struct
3915 * 0 on success / other on failure
3917 static int ipr_free_dump(struct ipr_ioa_cfg *ioa_cfg)
3919 struct ipr_dump *dump;
3920 unsigned long lock_flags = 0;
3924 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3925 dump = ioa_cfg->dump;
3927 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3931 ioa_cfg->dump = NULL;
3932 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3934 kref_put(&dump->kref, ipr_release_dump);
3941 * ipr_write_dump - Setup dump state of adapter
3942 * @filp: open sysfs file
3943 * @kobj: kobject struct
3944 * @bin_attr: bin_attribute struct
3947 * @count: buffer size
3950 * number of bytes printed to buffer
3952 static ssize_t ipr_write_dump(struct file *filp, struct kobject *kobj,
3953 struct bin_attribute *bin_attr,
3954 char *buf, loff_t off, size_t count)
3956 struct device *cdev = container_of(kobj, struct device, kobj);
3957 struct Scsi_Host *shost = class_to_shost(cdev);
3958 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
3961 if (!capable(CAP_SYS_ADMIN))
3965 rc = ipr_alloc_dump(ioa_cfg);
3966 else if (buf[0] == '0')
3967 rc = ipr_free_dump(ioa_cfg);
3977 static struct bin_attribute ipr_dump_attr = {
3980 .mode = S_IRUSR | S_IWUSR,
3983 .read = ipr_read_dump,
3984 .write = ipr_write_dump
3987 static int ipr_free_dump(struct ipr_ioa_cfg *ioa_cfg) { return 0; };
3991 * ipr_change_queue_depth - Change the device's queue depth
3992 * @sdev: scsi device struct
3993 * @qdepth: depth to set
3994 * @reason: calling context
3999 static int ipr_change_queue_depth(struct scsi_device *sdev, int qdepth,
4002 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)sdev->host->hostdata;
4003 struct ipr_resource_entry *res;
4004 unsigned long lock_flags = 0;
4006 if (reason != SCSI_QDEPTH_DEFAULT)
4009 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4010 res = (struct ipr_resource_entry *)sdev->hostdata;
4012 if (res && ipr_is_gata(res) && qdepth > IPR_MAX_CMD_PER_ATA_LUN)
4013 qdepth = IPR_MAX_CMD_PER_ATA_LUN;
4014 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4016 scsi_adjust_queue_depth(sdev, scsi_get_tag_type(sdev), qdepth);
4017 return sdev->queue_depth;
4021 * ipr_change_queue_type - Change the device's queue type
4022 * @dsev: scsi device struct
4023 * @tag_type: type of tags to use
4026 * actual queue type set
4028 static int ipr_change_queue_type(struct scsi_device *sdev, int tag_type)
4030 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)sdev->host->hostdata;
4031 struct ipr_resource_entry *res;
4032 unsigned long lock_flags = 0;
4034 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4035 res = (struct ipr_resource_entry *)sdev->hostdata;
4038 if (ipr_is_gscsi(res) && sdev->tagged_supported) {
4040 * We don't bother quiescing the device here since the
4041 * adapter firmware does it for us.
4043 scsi_set_tag_type(sdev, tag_type);
4046 scsi_activate_tcq(sdev, sdev->queue_depth);
4048 scsi_deactivate_tcq(sdev, sdev->queue_depth);
4054 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4059 * ipr_show_adapter_handle - Show the adapter's resource handle for this device
4060 * @dev: device struct
4064 * number of bytes printed to buffer
4066 static ssize_t ipr_show_adapter_handle(struct device *dev, struct device_attribute *attr, char *buf)
4068 struct scsi_device *sdev = to_scsi_device(dev);
4069 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)sdev->host->hostdata;
4070 struct ipr_resource_entry *res;
4071 unsigned long lock_flags = 0;
4072 ssize_t len = -ENXIO;
4074 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4075 res = (struct ipr_resource_entry *)sdev->hostdata;
4077 len = snprintf(buf, PAGE_SIZE, "%08X\n", res->res_handle);
4078 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4082 static struct device_attribute ipr_adapter_handle_attr = {
4084 .name = "adapter_handle",
4087 .show = ipr_show_adapter_handle
4091 * ipr_show_resource_path - Show the resource path or the resource address for
4093 * @dev: device struct
4097 * number of bytes printed to buffer
4099 static ssize_t ipr_show_resource_path(struct device *dev, struct device_attribute *attr, char *buf)
4101 struct scsi_device *sdev = to_scsi_device(dev);
4102 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)sdev->host->hostdata;
4103 struct ipr_resource_entry *res;
4104 unsigned long lock_flags = 0;
4105 ssize_t len = -ENXIO;
4106 char buffer[IPR_MAX_RES_PATH_LENGTH];
4108 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4109 res = (struct ipr_resource_entry *)sdev->hostdata;
4110 if (res && ioa_cfg->sis64)
4111 len = snprintf(buf, PAGE_SIZE, "%s\n",
4112 ipr_format_res_path(res->res_path, buffer,
4115 len = snprintf(buf, PAGE_SIZE, "%d:%d:%d:%d\n", ioa_cfg->host->host_no,
4116 res->bus, res->target, res->lun);
4118 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4122 static struct device_attribute ipr_resource_path_attr = {
4124 .name = "resource_path",
4127 .show = ipr_show_resource_path
4130 static struct device_attribute *ipr_dev_attrs[] = {
4131 &ipr_adapter_handle_attr,
4132 &ipr_resource_path_attr,
4137 * ipr_biosparam - Return the HSC mapping
4138 * @sdev: scsi device struct
4139 * @block_device: block device pointer
4140 * @capacity: capacity of the device
4141 * @parm: Array containing returned HSC values.
4143 * This function generates the HSC parms that fdisk uses.
4144 * We want to make sure we return something that places partitions
4145 * on 4k boundaries for best performance with the IOA.
4150 static int ipr_biosparam(struct scsi_device *sdev,
4151 struct block_device *block_device,
4152 sector_t capacity, int *parm)
4160 cylinders = capacity;
4161 sector_div(cylinders, (128 * 32));
4166 parm[2] = cylinders;
4172 * ipr_find_starget - Find target based on bus/target.
4173 * @starget: scsi target struct
4176 * resource entry pointer if found / NULL if not found
4178 static struct ipr_resource_entry *ipr_find_starget(struct scsi_target *starget)
4180 struct Scsi_Host *shost = dev_to_shost(&starget->dev);
4181 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) shost->hostdata;
4182 struct ipr_resource_entry *res;
4184 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) {
4185 if ((res->bus == starget->channel) &&
4186 (res->target == starget->id) &&
4195 static struct ata_port_info sata_port_info;
4198 * ipr_target_alloc - Prepare for commands to a SCSI target
4199 * @starget: scsi target struct
4201 * If the device is a SATA device, this function allocates an
4202 * ATA port with libata, else it does nothing.
4205 * 0 on success / non-0 on failure
4207 static int ipr_target_alloc(struct scsi_target *starget)
4209 struct Scsi_Host *shost = dev_to_shost(&starget->dev);
4210 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) shost->hostdata;
4211 struct ipr_sata_port *sata_port;
4212 struct ata_port *ap;
4213 struct ipr_resource_entry *res;
4214 unsigned long lock_flags;
4216 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4217 res = ipr_find_starget(starget);
4218 starget->hostdata = NULL;
4220 if (res && ipr_is_gata(res)) {
4221 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4222 sata_port = kzalloc(sizeof(*sata_port), GFP_KERNEL);
4226 ap = ata_sas_port_alloc(&ioa_cfg->ata_host, &sata_port_info, shost);
4228 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4229 sata_port->ioa_cfg = ioa_cfg;
4231 sata_port->res = res;
4233 res->sata_port = sata_port;
4234 ap->private_data = sata_port;
4235 starget->hostdata = sata_port;
4241 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4247 * ipr_target_destroy - Destroy a SCSI target
4248 * @starget: scsi target struct
4250 * If the device was a SATA device, this function frees the libata
4251 * ATA port, else it does nothing.
4254 static void ipr_target_destroy(struct scsi_target *starget)
4256 struct ipr_sata_port *sata_port = starget->hostdata;
4257 struct Scsi_Host *shost = dev_to_shost(&starget->dev);
4258 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) shost->hostdata;
4260 if (ioa_cfg->sis64) {
4261 if (starget->channel == IPR_ARRAY_VIRTUAL_BUS)
4262 clear_bit(starget->id, ioa_cfg->array_ids);
4263 else if (starget->channel == IPR_VSET_VIRTUAL_BUS)
4264 clear_bit(starget->id, ioa_cfg->vset_ids);
4265 else if (starget->channel == 0)
4266 clear_bit(starget->id, ioa_cfg->target_ids);
4270 starget->hostdata = NULL;
4271 ata_sas_port_destroy(sata_port->ap);
4277 * ipr_find_sdev - Find device based on bus/target/lun.
4278 * @sdev: scsi device struct
4281 * resource entry pointer if found / NULL if not found
4283 static struct ipr_resource_entry *ipr_find_sdev(struct scsi_device *sdev)
4285 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) sdev->host->hostdata;
4286 struct ipr_resource_entry *res;
4288 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) {
4289 if ((res->bus == sdev->channel) &&
4290 (res->target == sdev->id) &&
4291 (res->lun == sdev->lun))
4299 * ipr_slave_destroy - Unconfigure a SCSI device
4300 * @sdev: scsi device struct
4305 static void ipr_slave_destroy(struct scsi_device *sdev)
4307 struct ipr_resource_entry *res;
4308 struct ipr_ioa_cfg *ioa_cfg;
4309 unsigned long lock_flags = 0;
4311 ioa_cfg = (struct ipr_ioa_cfg *) sdev->host->hostdata;
4313 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4314 res = (struct ipr_resource_entry *) sdev->hostdata;
4317 res->sata_port->ap->link.device[0].class = ATA_DEV_NONE;
4318 sdev->hostdata = NULL;
4320 res->sata_port = NULL;
4322 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4326 * ipr_slave_configure - Configure a SCSI device
4327 * @sdev: scsi device struct
4329 * This function configures the specified scsi device.
4334 static int ipr_slave_configure(struct scsi_device *sdev)
4336 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) sdev->host->hostdata;
4337 struct ipr_resource_entry *res;
4338 struct ata_port *ap = NULL;
4339 unsigned long lock_flags = 0;
4340 char buffer[IPR_MAX_RES_PATH_LENGTH];
4342 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4343 res = sdev->hostdata;
4345 if (ipr_is_af_dasd_device(res))
4346 sdev->type = TYPE_RAID;
4347 if (ipr_is_af_dasd_device(res) || ipr_is_ioa_resource(res)) {
4348 sdev->scsi_level = 4;
4349 sdev->no_uld_attach = 1;
4351 if (ipr_is_vset_device(res)) {
4352 blk_queue_rq_timeout(sdev->request_queue,
4353 IPR_VSET_RW_TIMEOUT);
4354 blk_queue_max_hw_sectors(sdev->request_queue, IPR_VSET_MAX_SECTORS);
4356 if (ipr_is_vset_device(res) || ipr_is_scsi_disk(res))
4357 sdev->allow_restart = 1;
4358 if (ipr_is_gata(res) && res->sata_port)
4359 ap = res->sata_port->ap;
4360 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4363 scsi_adjust_queue_depth(sdev, 0, IPR_MAX_CMD_PER_ATA_LUN);
4364 ata_sas_slave_configure(sdev, ap);
4366 scsi_adjust_queue_depth(sdev, 0, sdev->host->cmd_per_lun);
4368 sdev_printk(KERN_INFO, sdev, "Resource path: %s\n",
4369 ipr_format_res_path(res->res_path, buffer,
4373 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4378 * ipr_ata_slave_alloc - Prepare for commands to a SATA device
4379 * @sdev: scsi device struct
4381 * This function initializes an ATA port so that future commands
4382 * sent through queuecommand will work.
4387 static int ipr_ata_slave_alloc(struct scsi_device *sdev)
4389 struct ipr_sata_port *sata_port = NULL;
4393 if (sdev->sdev_target)
4394 sata_port = sdev->sdev_target->hostdata;
4396 rc = ata_sas_port_init(sata_port->ap);
4398 ipr_slave_destroy(sdev);
4405 * ipr_slave_alloc - Prepare for commands to a device.
4406 * @sdev: scsi device struct
4408 * This function saves a pointer to the resource entry
4409 * in the scsi device struct if the device exists. We
4410 * can then use this pointer in ipr_queuecommand when
4411 * handling new commands.
4414 * 0 on success / -ENXIO if device does not exist
4416 static int ipr_slave_alloc(struct scsi_device *sdev)
4418 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) sdev->host->hostdata;
4419 struct ipr_resource_entry *res;
4420 unsigned long lock_flags;
4423 sdev->hostdata = NULL;
4425 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4427 res = ipr_find_sdev(sdev);
4432 sdev->hostdata = res;
4433 if (!ipr_is_naca_model(res))
4434 res->needs_sync_complete = 1;
4436 if (ipr_is_gata(res)) {
4437 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4438 return ipr_ata_slave_alloc(sdev);
4442 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4448 * ipr_eh_host_reset - Reset the host adapter
4449 * @scsi_cmd: scsi command struct
4454 static int __ipr_eh_host_reset(struct scsi_cmnd * scsi_cmd)
4456 struct ipr_ioa_cfg *ioa_cfg;
4460 ioa_cfg = (struct ipr_ioa_cfg *) scsi_cmd->device->host->hostdata;
4462 dev_err(&ioa_cfg->pdev->dev,
4463 "Adapter being reset as a result of error recovery.\n");
4465 if (WAIT_FOR_DUMP == ioa_cfg->sdt_state)
4466 ioa_cfg->sdt_state = GET_DUMP;
4468 rc = ipr_reset_reload(ioa_cfg, IPR_SHUTDOWN_ABBREV);
4474 static int ipr_eh_host_reset(struct scsi_cmnd * cmd)
4478 spin_lock_irq(cmd->device->host->host_lock);
4479 rc = __ipr_eh_host_reset(cmd);
4480 spin_unlock_irq(cmd->device->host->host_lock);
4486 * ipr_device_reset - Reset the device
4487 * @ioa_cfg: ioa config struct
4488 * @res: resource entry struct
4490 * This function issues a device reset to the affected device.
4491 * If the device is a SCSI device, a LUN reset will be sent
4492 * to the device first. If that does not work, a target reset
4493 * will be sent. If the device is a SATA device, a PHY reset will
4497 * 0 on success / non-zero on failure
4499 static int ipr_device_reset(struct ipr_ioa_cfg *ioa_cfg,
4500 struct ipr_resource_entry *res)
4502 struct ipr_cmnd *ipr_cmd;
4503 struct ipr_ioarcb *ioarcb;
4504 struct ipr_cmd_pkt *cmd_pkt;
4505 struct ipr_ioarcb_ata_regs *regs;
4509 ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg);
4510 ioarcb = &ipr_cmd->ioarcb;
4511 cmd_pkt = &ioarcb->cmd_pkt;
4513 if (ipr_cmd->ioa_cfg->sis64) {
4514 regs = &ipr_cmd->i.ata_ioadl.regs;
4515 ioarcb->add_cmd_parms_offset = cpu_to_be16(sizeof(*ioarcb));
4517 regs = &ioarcb->u.add_data.u.regs;
4519 ioarcb->res_handle = res->res_handle;
4520 cmd_pkt->request_type = IPR_RQTYPE_IOACMD;
4521 cmd_pkt->cdb[0] = IPR_RESET_DEVICE;
4522 if (ipr_is_gata(res)) {
4523 cmd_pkt->cdb[2] = IPR_ATA_PHY_RESET;
4524 ioarcb->add_cmd_parms_len = cpu_to_be16(sizeof(regs->flags));
4525 regs->flags |= IPR_ATA_FLAG_STATUS_ON_GOOD_COMPLETION;
4528 ipr_send_blocking_cmd(ipr_cmd, ipr_timeout, IPR_DEVICE_RESET_TIMEOUT);
4529 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
4530 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
4531 if (ipr_is_gata(res) && res->sata_port && ioasc != IPR_IOASC_IOA_WAS_RESET) {
4532 if (ipr_cmd->ioa_cfg->sis64)
4533 memcpy(&res->sata_port->ioasa, &ipr_cmd->s.ioasa64.u.gata,
4534 sizeof(struct ipr_ioasa_gata));
4536 memcpy(&res->sata_port->ioasa, &ipr_cmd->s.ioasa.u.gata,
4537 sizeof(struct ipr_ioasa_gata));
4541 return (IPR_IOASC_SENSE_KEY(ioasc) ? -EIO : 0);
4545 * ipr_sata_reset - Reset the SATA port
4546 * @link: SATA link to reset
4547 * @classes: class of the attached device
4549 * This function issues a SATA phy reset to the affected ATA link.
4552 * 0 on success / non-zero on failure
4554 static int ipr_sata_reset(struct ata_link *link, unsigned int *classes,
4555 unsigned long deadline)
4557 struct ipr_sata_port *sata_port = link->ap->private_data;
4558 struct ipr_ioa_cfg *ioa_cfg = sata_port->ioa_cfg;
4559 struct ipr_resource_entry *res;
4560 unsigned long lock_flags = 0;
4564 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4565 while(ioa_cfg->in_reset_reload) {
4566 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4567 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
4568 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4571 res = sata_port->res;
4573 rc = ipr_device_reset(ioa_cfg, res);
4574 *classes = res->ata_class;
4577 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4583 * ipr_eh_dev_reset - Reset the device
4584 * @scsi_cmd: scsi command struct
4586 * This function issues a device reset to the affected device.
4587 * A LUN reset will be sent to the device first. If that does
4588 * not work, a target reset will be sent.
4593 static int __ipr_eh_dev_reset(struct scsi_cmnd * scsi_cmd)
4595 struct ipr_cmnd *ipr_cmd;
4596 struct ipr_ioa_cfg *ioa_cfg;
4597 struct ipr_resource_entry *res;
4598 struct ata_port *ap;
4602 ioa_cfg = (struct ipr_ioa_cfg *) scsi_cmd->device->host->hostdata;
4603 res = scsi_cmd->device->hostdata;
4609 * If we are currently going through reset/reload, return failed. This will force the
4610 * mid-layer to call ipr_eh_host_reset, which will then go to sleep and wait for the
4613 if (ioa_cfg->in_reset_reload)
4615 if (ioa_cfg->ioa_is_dead)
4618 list_for_each_entry(ipr_cmd, &ioa_cfg->pending_q, queue) {
4619 if (ipr_cmd->ioarcb.res_handle == res->res_handle) {
4620 if (ipr_cmd->scsi_cmd)
4621 ipr_cmd->done = ipr_scsi_eh_done;
4623 ipr_cmd->done = ipr_sata_eh_done;
4624 if (ipr_cmd->qc && !(ipr_cmd->qc->flags & ATA_QCFLAG_FAILED)) {
4625 ipr_cmd->qc->err_mask |= AC_ERR_TIMEOUT;
4626 ipr_cmd->qc->flags |= ATA_QCFLAG_FAILED;
4631 res->resetting_device = 1;
4632 scmd_printk(KERN_ERR, scsi_cmd, "Resetting device\n");
4634 if (ipr_is_gata(res) && res->sata_port) {
4635 ap = res->sata_port->ap;
4636 spin_unlock_irq(scsi_cmd->device->host->host_lock);
4637 ata_std_error_handler(ap);
4638 spin_lock_irq(scsi_cmd->device->host->host_lock);
4640 list_for_each_entry(ipr_cmd, &ioa_cfg->pending_q, queue) {
4641 if (ipr_cmd->ioarcb.res_handle == res->res_handle) {
4647 rc = ipr_device_reset(ioa_cfg, res);
4648 res->resetting_device = 0;
4651 return (rc ? FAILED : SUCCESS);
4654 static int ipr_eh_dev_reset(struct scsi_cmnd * cmd)
4658 spin_lock_irq(cmd->device->host->host_lock);
4659 rc = __ipr_eh_dev_reset(cmd);
4660 spin_unlock_irq(cmd->device->host->host_lock);
4666 * ipr_bus_reset_done - Op done function for bus reset.
4667 * @ipr_cmd: ipr command struct
4669 * This function is the op done function for a bus reset
4674 static void ipr_bus_reset_done(struct ipr_cmnd *ipr_cmd)
4676 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
4677 struct ipr_resource_entry *res;
4680 if (!ioa_cfg->sis64)
4681 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) {
4682 if (res->res_handle == ipr_cmd->ioarcb.res_handle) {
4683 scsi_report_bus_reset(ioa_cfg->host, res->bus);
4689 * If abort has not completed, indicate the reset has, else call the
4690 * abort's done function to wake the sleeping eh thread
4692 if (ipr_cmd->sibling->sibling)
4693 ipr_cmd->sibling->sibling = NULL;
4695 ipr_cmd->sibling->done(ipr_cmd->sibling);
4697 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
4702 * ipr_abort_timeout - An abort task has timed out
4703 * @ipr_cmd: ipr command struct
4705 * This function handles when an abort task times out. If this
4706 * happens we issue a bus reset since we have resources tied
4707 * up that must be freed before returning to the midlayer.
4712 static void ipr_abort_timeout(struct ipr_cmnd *ipr_cmd)
4714 struct ipr_cmnd *reset_cmd;
4715 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
4716 struct ipr_cmd_pkt *cmd_pkt;
4717 unsigned long lock_flags = 0;
4720 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4721 if (ipr_cmd->completion.done || ioa_cfg->in_reset_reload) {
4722 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4726 sdev_printk(KERN_ERR, ipr_cmd->u.sdev, "Abort timed out. Resetting bus.\n");
4727 reset_cmd = ipr_get_free_ipr_cmnd(ioa_cfg);
4728 ipr_cmd->sibling = reset_cmd;
4729 reset_cmd->sibling = ipr_cmd;
4730 reset_cmd->ioarcb.res_handle = ipr_cmd->ioarcb.res_handle;
4731 cmd_pkt = &reset_cmd->ioarcb.cmd_pkt;
4732 cmd_pkt->request_type = IPR_RQTYPE_IOACMD;
4733 cmd_pkt->cdb[0] = IPR_RESET_DEVICE;
4734 cmd_pkt->cdb[2] = IPR_RESET_TYPE_SELECT | IPR_BUS_RESET;
4736 ipr_do_req(reset_cmd, ipr_bus_reset_done, ipr_timeout, IPR_DEVICE_RESET_TIMEOUT);
4737 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4742 * ipr_cancel_op - Cancel specified op
4743 * @scsi_cmd: scsi command struct
4745 * This function cancels specified op.
4750 static int ipr_cancel_op(struct scsi_cmnd * scsi_cmd)
4752 struct ipr_cmnd *ipr_cmd;
4753 struct ipr_ioa_cfg *ioa_cfg;
4754 struct ipr_resource_entry *res;
4755 struct ipr_cmd_pkt *cmd_pkt;
4760 ioa_cfg = (struct ipr_ioa_cfg *)scsi_cmd->device->host->hostdata;
4761 res = scsi_cmd->device->hostdata;
4763 /* If we are currently going through reset/reload, return failed.
4764 * This will force the mid-layer to call ipr_eh_host_reset,
4765 * which will then go to sleep and wait for the reset to complete
4767 if (ioa_cfg->in_reset_reload || ioa_cfg->ioa_is_dead)
4769 if (!res || !ipr_is_gscsi(res))
4772 list_for_each_entry(ipr_cmd, &ioa_cfg->pending_q, queue) {
4773 if (ipr_cmd->scsi_cmd == scsi_cmd) {
4774 ipr_cmd->done = ipr_scsi_eh_done;
4783 ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg);
4784 ipr_cmd->ioarcb.res_handle = res->res_handle;
4785 cmd_pkt = &ipr_cmd->ioarcb.cmd_pkt;
4786 cmd_pkt->request_type = IPR_RQTYPE_IOACMD;
4787 cmd_pkt->cdb[0] = IPR_CANCEL_ALL_REQUESTS;
4788 ipr_cmd->u.sdev = scsi_cmd->device;
4790 scmd_printk(KERN_ERR, scsi_cmd, "Aborting command: %02X\n",
4792 ipr_send_blocking_cmd(ipr_cmd, ipr_abort_timeout, IPR_CANCEL_ALL_TIMEOUT);
4793 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
4796 * If the abort task timed out and we sent a bus reset, we will get
4797 * one the following responses to the abort
4799 if (ioasc == IPR_IOASC_BUS_WAS_RESET || ioasc == IPR_IOASC_SYNC_REQUIRED) {
4804 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
4805 if (!ipr_is_naca_model(res))
4806 res->needs_sync_complete = 1;
4809 return (IPR_IOASC_SENSE_KEY(ioasc) ? FAILED : SUCCESS);
4813 * ipr_eh_abort - Abort a single op
4814 * @scsi_cmd: scsi command struct
4819 static int ipr_eh_abort(struct scsi_cmnd * scsi_cmd)
4821 unsigned long flags;
4826 spin_lock_irqsave(scsi_cmd->device->host->host_lock, flags);
4827 rc = ipr_cancel_op(scsi_cmd);
4828 spin_unlock_irqrestore(scsi_cmd->device->host->host_lock, flags);
4835 * ipr_handle_other_interrupt - Handle "other" interrupts
4836 * @ioa_cfg: ioa config struct
4839 * IRQ_NONE / IRQ_HANDLED
4841 static irqreturn_t ipr_handle_other_interrupt(struct ipr_ioa_cfg *ioa_cfg)
4843 irqreturn_t rc = IRQ_HANDLED;
4844 volatile u32 int_reg, int_mask_reg;
4846 int_mask_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg32);
4847 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg32) & ~int_mask_reg;
4849 /* If an interrupt on the adapter did not occur, ignore it.
4850 * Or in the case of SIS 64, check for a stage change interrupt.
4852 if ((int_reg & IPR_PCII_OPER_INTERRUPTS) == 0) {
4853 if (ioa_cfg->sis64) {
4854 int_mask_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg);
4855 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg) & ~int_mask_reg;
4856 if (int_reg & IPR_PCII_IPL_STAGE_CHANGE) {
4858 /* clear stage change */
4859 writel(IPR_PCII_IPL_STAGE_CHANGE, ioa_cfg->regs.clr_interrupt_reg);
4860 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg) & ~int_mask_reg;
4861 list_del(&ioa_cfg->reset_cmd->queue);
4862 del_timer(&ioa_cfg->reset_cmd->timer);
4863 ipr_reset_ioa_job(ioa_cfg->reset_cmd);
4871 if (int_reg & IPR_PCII_IOA_TRANS_TO_OPER) {
4872 /* Mask the interrupt */
4873 writel(IPR_PCII_IOA_TRANS_TO_OPER, ioa_cfg->regs.set_interrupt_mask_reg);
4875 /* Clear the interrupt */
4876 writel(IPR_PCII_IOA_TRANS_TO_OPER, ioa_cfg->regs.clr_interrupt_reg);
4877 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg);
4879 list_del(&ioa_cfg->reset_cmd->queue);
4880 del_timer(&ioa_cfg->reset_cmd->timer);
4881 ipr_reset_ioa_job(ioa_cfg->reset_cmd);
4883 if (int_reg & IPR_PCII_IOA_UNIT_CHECKED)
4884 ioa_cfg->ioa_unit_checked = 1;
4886 dev_err(&ioa_cfg->pdev->dev,
4887 "Permanent IOA failure. 0x%08X\n", int_reg);
4889 if (WAIT_FOR_DUMP == ioa_cfg->sdt_state)
4890 ioa_cfg->sdt_state = GET_DUMP;
4892 ipr_mask_and_clear_interrupts(ioa_cfg, ~0);
4893 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
4900 * ipr_isr_eh - Interrupt service routine error handler
4901 * @ioa_cfg: ioa config struct
4902 * @msg: message to log
4907 static void ipr_isr_eh(struct ipr_ioa_cfg *ioa_cfg, char *msg)
4909 ioa_cfg->errors_logged++;
4910 dev_err(&ioa_cfg->pdev->dev, "%s\n", msg);
4912 if (WAIT_FOR_DUMP == ioa_cfg->sdt_state)
4913 ioa_cfg->sdt_state = GET_DUMP;
4915 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
4919 * ipr_isr - Interrupt service routine
4921 * @devp: pointer to ioa config struct
4924 * IRQ_NONE / IRQ_HANDLED
4926 static irqreturn_t ipr_isr(int irq, void *devp)
4928 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)devp;
4929 unsigned long lock_flags = 0;
4930 volatile u32 int_reg;
4934 struct ipr_cmnd *ipr_cmd;
4935 irqreturn_t rc = IRQ_NONE;
4937 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4939 /* If interrupts are disabled, ignore the interrupt */
4940 if (!ioa_cfg->allow_interrupts) {
4941 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4948 while ((be32_to_cpu(*ioa_cfg->hrrq_curr) & IPR_HRRQ_TOGGLE_BIT) ==
4949 ioa_cfg->toggle_bit) {
4951 cmd_index = (be32_to_cpu(*ioa_cfg->hrrq_curr) &
4952 IPR_HRRQ_REQ_RESP_HANDLE_MASK) >> IPR_HRRQ_REQ_RESP_HANDLE_SHIFT;
4954 if (unlikely(cmd_index >= IPR_NUM_CMD_BLKS)) {
4955 ipr_isr_eh(ioa_cfg, "Invalid response handle from IOA");
4956 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4960 ipr_cmd = ioa_cfg->ipr_cmnd_list[cmd_index];
4962 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
4964 ipr_trc_hook(ipr_cmd, IPR_TRACE_FINISH, ioasc);
4966 list_del(&ipr_cmd->queue);
4967 del_timer(&ipr_cmd->timer);
4968 ipr_cmd->done(ipr_cmd);
4972 if (ioa_cfg->hrrq_curr < ioa_cfg->hrrq_end) {
4973 ioa_cfg->hrrq_curr++;
4975 ioa_cfg->hrrq_curr = ioa_cfg->hrrq_start;
4976 ioa_cfg->toggle_bit ^= 1u;
4980 if (ipr_cmd != NULL) {
4981 /* Clear the PCI interrupt */
4983 writel(IPR_PCII_HRRQ_UPDATED, ioa_cfg->regs.clr_interrupt_reg32);
4984 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg32);
4985 } while (int_reg & IPR_PCII_HRRQ_UPDATED &&
4986 num_hrrq++ < IPR_MAX_HRRQ_RETRIES);
4988 if (int_reg & IPR_PCII_HRRQ_UPDATED) {
4989 ipr_isr_eh(ioa_cfg, "Error clearing HRRQ");
4990 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4998 if (unlikely(rc == IRQ_NONE))
4999 rc = ipr_handle_other_interrupt(ioa_cfg);
5001 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
5006 * ipr_build_ioadl64 - Build a scatter/gather list and map the buffer
5007 * @ioa_cfg: ioa config struct
5008 * @ipr_cmd: ipr command struct
5011 * 0 on success / -1 on failure
5013 static int ipr_build_ioadl64(struct ipr_ioa_cfg *ioa_cfg,
5014 struct ipr_cmnd *ipr_cmd)
5017 struct scatterlist *sg;
5019 u32 ioadl_flags = 0;
5020 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd;
5021 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
5022 struct ipr_ioadl64_desc *ioadl64 = ipr_cmd->i.ioadl64;
5024 length = scsi_bufflen(scsi_cmd);
5028 nseg = scsi_dma_map(scsi_cmd);
5030 dev_err(&ioa_cfg->pdev->dev, "pci_map_sg failed!\n");
5034 ipr_cmd->dma_use_sg = nseg;
5036 ioarcb->data_transfer_length = cpu_to_be32(length);
5038 cpu_to_be32(sizeof(struct ipr_ioadl64_desc) * ipr_cmd->dma_use_sg);
5040 if (scsi_cmd->sc_data_direction == DMA_TO_DEVICE) {
5041 ioadl_flags = IPR_IOADL_FLAGS_WRITE;
5042 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ;
5043 } else if (scsi_cmd->sc_data_direction == DMA_FROM_DEVICE)
5044 ioadl_flags = IPR_IOADL_FLAGS_READ;
5046 scsi_for_each_sg(scsi_cmd, sg, ipr_cmd->dma_use_sg, i) {
5047 ioadl64[i].flags = cpu_to_be32(ioadl_flags);
5048 ioadl64[i].data_len = cpu_to_be32(sg_dma_len(sg));
5049 ioadl64[i].address = cpu_to_be64(sg_dma_address(sg));
5052 ioadl64[i-1].flags |= cpu_to_be32(IPR_IOADL_FLAGS_LAST);
5057 * ipr_build_ioadl - Build a scatter/gather list and map the buffer
5058 * @ioa_cfg: ioa config struct
5059 * @ipr_cmd: ipr command struct
5062 * 0 on success / -1 on failure
5064 static int ipr_build_ioadl(struct ipr_ioa_cfg *ioa_cfg,
5065 struct ipr_cmnd *ipr_cmd)
5068 struct scatterlist *sg;
5070 u32 ioadl_flags = 0;
5071 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd;
5072 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
5073 struct ipr_ioadl_desc *ioadl = ipr_cmd->i.ioadl;
5075 length = scsi_bufflen(scsi_cmd);
5079 nseg = scsi_dma_map(scsi_cmd);
5081 dev_err(&ioa_cfg->pdev->dev, "pci_map_sg failed!\n");
5085 ipr_cmd->dma_use_sg = nseg;
5087 if (scsi_cmd->sc_data_direction == DMA_TO_DEVICE) {
5088 ioadl_flags = IPR_IOADL_FLAGS_WRITE;
5089 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ;
5090 ioarcb->data_transfer_length = cpu_to_be32(length);
5092 cpu_to_be32(sizeof(struct ipr_ioadl_desc) * ipr_cmd->dma_use_sg);
5093 } else if (scsi_cmd->sc_data_direction == DMA_FROM_DEVICE) {
5094 ioadl_flags = IPR_IOADL_FLAGS_READ;
5095 ioarcb->read_data_transfer_length = cpu_to_be32(length);
5096 ioarcb->read_ioadl_len =
5097 cpu_to_be32(sizeof(struct ipr_ioadl_desc) * ipr_cmd->dma_use_sg);
5100 if (ipr_cmd->dma_use_sg <= ARRAY_SIZE(ioarcb->u.add_data.u.ioadl)) {
5101 ioadl = ioarcb->u.add_data.u.ioadl;
5102 ioarcb->write_ioadl_addr = cpu_to_be32((ipr_cmd->dma_addr) +
5103 offsetof(struct ipr_ioarcb, u.add_data));
5104 ioarcb->read_ioadl_addr = ioarcb->write_ioadl_addr;
5107 scsi_for_each_sg(scsi_cmd, sg, ipr_cmd->dma_use_sg, i) {
5108 ioadl[i].flags_and_data_len =
5109 cpu_to_be32(ioadl_flags | sg_dma_len(sg));
5110 ioadl[i].address = cpu_to_be32(sg_dma_address(sg));
5113 ioadl[i-1].flags_and_data_len |= cpu_to_be32(IPR_IOADL_FLAGS_LAST);
5118 * ipr_get_task_attributes - Translate SPI Q-Tag to task attributes
5119 * @scsi_cmd: scsi command struct
5124 static u8 ipr_get_task_attributes(struct scsi_cmnd *scsi_cmd)
5127 u8 rc = IPR_FLAGS_LO_UNTAGGED_TASK;
5129 if (scsi_populate_tag_msg(scsi_cmd, tag)) {
5131 case MSG_SIMPLE_TAG:
5132 rc = IPR_FLAGS_LO_SIMPLE_TASK;
5135 rc = IPR_FLAGS_LO_HEAD_OF_Q_TASK;
5137 case MSG_ORDERED_TAG:
5138 rc = IPR_FLAGS_LO_ORDERED_TASK;
5147 * ipr_erp_done - Process completion of ERP for a device
5148 * @ipr_cmd: ipr command struct
5150 * This function copies the sense buffer into the scsi_cmd
5151 * struct and pushes the scsi_done function.
5156 static void ipr_erp_done(struct ipr_cmnd *ipr_cmd)
5158 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd;
5159 struct ipr_resource_entry *res = scsi_cmd->device->hostdata;
5160 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
5161 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
5163 if (IPR_IOASC_SENSE_KEY(ioasc) > 0) {
5164 scsi_cmd->result |= (DID_ERROR << 16);
5165 scmd_printk(KERN_ERR, scsi_cmd,
5166 "Request Sense failed with IOASC: 0x%08X\n", ioasc);
5168 memcpy(scsi_cmd->sense_buffer, ipr_cmd->sense_buffer,
5169 SCSI_SENSE_BUFFERSIZE);
5173 if (!ipr_is_naca_model(res))
5174 res->needs_sync_complete = 1;
5177 scsi_dma_unmap(ipr_cmd->scsi_cmd);
5178 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
5179 scsi_cmd->scsi_done(scsi_cmd);
5183 * ipr_reinit_ipr_cmnd_for_erp - Re-initialize a cmnd block to be used for ERP
5184 * @ipr_cmd: ipr command struct
5189 static void ipr_reinit_ipr_cmnd_for_erp(struct ipr_cmnd *ipr_cmd)
5191 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
5192 struct ipr_ioasa *ioasa = &ipr_cmd->s.ioasa;
5193 dma_addr_t dma_addr = ipr_cmd->dma_addr;
5195 memset(&ioarcb->cmd_pkt, 0, sizeof(struct ipr_cmd_pkt));
5196 ioarcb->data_transfer_length = 0;
5197 ioarcb->read_data_transfer_length = 0;
5198 ioarcb->ioadl_len = 0;
5199 ioarcb->read_ioadl_len = 0;
5200 ioasa->hdr.ioasc = 0;
5201 ioasa->hdr.residual_data_len = 0;
5203 if (ipr_cmd->ioa_cfg->sis64)
5204 ioarcb->u.sis64_addr_data.data_ioadl_addr =
5205 cpu_to_be64(dma_addr + offsetof(struct ipr_cmnd, i.ioadl64));
5207 ioarcb->write_ioadl_addr =
5208 cpu_to_be32(dma_addr + offsetof(struct ipr_cmnd, i.ioadl));
5209 ioarcb->read_ioadl_addr = ioarcb->write_ioadl_addr;
5214 * ipr_erp_request_sense - Send request sense to a device
5215 * @ipr_cmd: ipr command struct
5217 * This function sends a request sense to a device as a result
5218 * of a check condition.
5223 static void ipr_erp_request_sense(struct ipr_cmnd *ipr_cmd)
5225 struct ipr_cmd_pkt *cmd_pkt = &ipr_cmd->ioarcb.cmd_pkt;
5226 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
5228 if (IPR_IOASC_SENSE_KEY(ioasc) > 0) {
5229 ipr_erp_done(ipr_cmd);
5233 ipr_reinit_ipr_cmnd_for_erp(ipr_cmd);
5235 cmd_pkt->request_type = IPR_RQTYPE_SCSICDB;
5236 cmd_pkt->cdb[0] = REQUEST_SENSE;
5237 cmd_pkt->cdb[4] = SCSI_SENSE_BUFFERSIZE;
5238 cmd_pkt->flags_hi |= IPR_FLAGS_HI_SYNC_OVERRIDE;
5239 cmd_pkt->flags_hi |= IPR_FLAGS_HI_NO_ULEN_CHK;
5240 cmd_pkt->timeout = cpu_to_be16(IPR_REQUEST_SENSE_TIMEOUT / HZ);
5242 ipr_init_ioadl(ipr_cmd, ipr_cmd->sense_buffer_dma,
5243 SCSI_SENSE_BUFFERSIZE, IPR_IOADL_FLAGS_READ_LAST);
5245 ipr_do_req(ipr_cmd, ipr_erp_done, ipr_timeout,
5246 IPR_REQUEST_SENSE_TIMEOUT * 2);
5250 * ipr_erp_cancel_all - Send cancel all to a device
5251 * @ipr_cmd: ipr command struct
5253 * This function sends a cancel all to a device to clear the
5254 * queue. If we are running TCQ on the device, QERR is set to 1,
5255 * which means all outstanding ops have been dropped on the floor.
5256 * Cancel all will return them to us.
5261 static void ipr_erp_cancel_all(struct ipr_cmnd *ipr_cmd)
5263 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd;
5264 struct ipr_resource_entry *res = scsi_cmd->device->hostdata;
5265 struct ipr_cmd_pkt *cmd_pkt;
5269 ipr_reinit_ipr_cmnd_for_erp(ipr_cmd);
5271 if (!scsi_get_tag_type(scsi_cmd->device)) {
5272 ipr_erp_request_sense(ipr_cmd);
5276 cmd_pkt = &ipr_cmd->ioarcb.cmd_pkt;
5277 cmd_pkt->request_type = IPR_RQTYPE_IOACMD;
5278 cmd_pkt->cdb[0] = IPR_CANCEL_ALL_REQUESTS;
5280 ipr_do_req(ipr_cmd, ipr_erp_request_sense, ipr_timeout,
5281 IPR_CANCEL_ALL_TIMEOUT);
5285 * ipr_dump_ioasa - Dump contents of IOASA
5286 * @ioa_cfg: ioa config struct
5287 * @ipr_cmd: ipr command struct
5288 * @res: resource entry struct
5290 * This function is invoked by the interrupt handler when ops
5291 * fail. It will log the IOASA if appropriate. Only called
5297 static void ipr_dump_ioasa(struct ipr_ioa_cfg *ioa_cfg,
5298 struct ipr_cmnd *ipr_cmd, struct ipr_resource_entry *res)
5302 u32 ioasc, fd_ioasc;
5303 struct ipr_ioasa *ioasa = &ipr_cmd->s.ioasa;
5304 __be32 *ioasa_data = (__be32 *)ioasa;
5307 ioasc = be32_to_cpu(ioasa->hdr.ioasc) & IPR_IOASC_IOASC_MASK;
5308 fd_ioasc = be32_to_cpu(ioasa->hdr.fd_ioasc) & IPR_IOASC_IOASC_MASK;
5313 if (ioa_cfg->log_level < IPR_DEFAULT_LOG_LEVEL)
5316 if (ioasc == IPR_IOASC_BUS_WAS_RESET && fd_ioasc)
5317 error_index = ipr_get_error(fd_ioasc);
5319 error_index = ipr_get_error(ioasc);
5321 if (ioa_cfg->log_level < IPR_MAX_LOG_LEVEL) {
5322 /* Don't log an error if the IOA already logged one */
5323 if (ioasa->hdr.ilid != 0)
5326 if (!ipr_is_gscsi(res))
5329 if (ipr_error_table[error_index].log_ioasa == 0)
5333 ipr_res_err(ioa_cfg, res, "%s\n", ipr_error_table[error_index].error);
5335 data_len = be16_to_cpu(ioasa->hdr.ret_stat_len);
5336 if (ioa_cfg->sis64 && sizeof(struct ipr_ioasa64) < data_len)
5337 data_len = sizeof(struct ipr_ioasa64);
5338 else if (!ioa_cfg->sis64 && sizeof(struct ipr_ioasa) < data_len)
5339 data_len = sizeof(struct ipr_ioasa);
5341 ipr_err("IOASA Dump:\n");
5343 for (i = 0; i < data_len / 4; i += 4) {
5344 ipr_err("%08X: %08X %08X %08X %08X\n", i*4,
5345 be32_to_cpu(ioasa_data[i]),
5346 be32_to_cpu(ioasa_data[i+1]),
5347 be32_to_cpu(ioasa_data[i+2]),
5348 be32_to_cpu(ioasa_data[i+3]));
5353 * ipr_gen_sense - Generate SCSI sense data from an IOASA
5355 * @sense_buf: sense data buffer
5360 static void ipr_gen_sense(struct ipr_cmnd *ipr_cmd)
5363 u8 *sense_buf = ipr_cmd->scsi_cmd->sense_buffer;
5364 struct ipr_resource_entry *res = ipr_cmd->scsi_cmd->device->hostdata;
5365 struct ipr_ioasa *ioasa = &ipr_cmd->s.ioasa;
5366 u32 ioasc = be32_to_cpu(ioasa->hdr.ioasc);
5368 memset(sense_buf, 0, SCSI_SENSE_BUFFERSIZE);
5370 if (ioasc >= IPR_FIRST_DRIVER_IOASC)
5373 ipr_cmd->scsi_cmd->result = SAM_STAT_CHECK_CONDITION;
5375 if (ipr_is_vset_device(res) &&
5376 ioasc == IPR_IOASC_MED_DO_NOT_REALLOC &&
5377 ioasa->u.vset.failing_lba_hi != 0) {
5378 sense_buf[0] = 0x72;
5379 sense_buf[1] = IPR_IOASC_SENSE_KEY(ioasc);
5380 sense_buf[2] = IPR_IOASC_SENSE_CODE(ioasc);
5381 sense_buf[3] = IPR_IOASC_SENSE_QUAL(ioasc);
5385 sense_buf[9] = 0x0A;
5386 sense_buf[10] = 0x80;
5388 failing_lba = be32_to_cpu(ioasa->u.vset.failing_lba_hi);
5390 sense_buf[12] = (failing_lba & 0xff000000) >> 24;
5391 sense_buf[13] = (failing_lba & 0x00ff0000) >> 16;
5392 sense_buf[14] = (failing_lba & 0x0000ff00) >> 8;
5393 sense_buf[15] = failing_lba & 0x000000ff;
5395 failing_lba = be32_to_cpu(ioasa->u.vset.failing_lba_lo);
5397 sense_buf[16] = (failing_lba & 0xff000000) >> 24;
5398 sense_buf[17] = (failing_lba & 0x00ff0000) >> 16;
5399 sense_buf[18] = (failing_lba & 0x0000ff00) >> 8;
5400 sense_buf[19] = failing_lba & 0x000000ff;
5402 sense_buf[0] = 0x70;
5403 sense_buf[2] = IPR_IOASC_SENSE_KEY(ioasc);
5404 sense_buf[12] = IPR_IOASC_SENSE_CODE(ioasc);
5405 sense_buf[13] = IPR_IOASC_SENSE_QUAL(ioasc);
5407 /* Illegal request */
5408 if ((IPR_IOASC_SENSE_KEY(ioasc) == 0x05) &&
5409 (be32_to_cpu(ioasa->hdr.ioasc_specific) & IPR_FIELD_POINTER_VALID)) {
5410 sense_buf[7] = 10; /* additional length */
5412 /* IOARCB was in error */
5413 if (IPR_IOASC_SENSE_CODE(ioasc) == 0x24)
5414 sense_buf[15] = 0xC0;
5415 else /* Parameter data was invalid */
5416 sense_buf[15] = 0x80;
5419 ((IPR_FIELD_POINTER_MASK &
5420 be32_to_cpu(ioasa->hdr.ioasc_specific)) >> 8) & 0xff;
5422 (IPR_FIELD_POINTER_MASK &
5423 be32_to_cpu(ioasa->hdr.ioasc_specific)) & 0xff;
5425 if (ioasc == IPR_IOASC_MED_DO_NOT_REALLOC) {
5426 if (ipr_is_vset_device(res))
5427 failing_lba = be32_to_cpu(ioasa->u.vset.failing_lba_lo);
5429 failing_lba = be32_to_cpu(ioasa->u.dasd.failing_lba);
5431 sense_buf[0] |= 0x80; /* Or in the Valid bit */
5432 sense_buf[3] = (failing_lba & 0xff000000) >> 24;
5433 sense_buf[4] = (failing_lba & 0x00ff0000) >> 16;
5434 sense_buf[5] = (failing_lba & 0x0000ff00) >> 8;
5435 sense_buf[6] = failing_lba & 0x000000ff;
5438 sense_buf[7] = 6; /* additional length */
5444 * ipr_get_autosense - Copy autosense data to sense buffer
5445 * @ipr_cmd: ipr command struct
5447 * This function copies the autosense buffer to the buffer
5448 * in the scsi_cmd, if there is autosense available.
5451 * 1 if autosense was available / 0 if not
5453 static int ipr_get_autosense(struct ipr_cmnd *ipr_cmd)
5455 struct ipr_ioasa *ioasa = &ipr_cmd->s.ioasa;
5456 struct ipr_ioasa64 *ioasa64 = &ipr_cmd->s.ioasa64;
5458 if ((be32_to_cpu(ioasa->hdr.ioasc_specific) & IPR_AUTOSENSE_VALID) == 0)
5461 if (ipr_cmd->ioa_cfg->sis64)
5462 memcpy(ipr_cmd->scsi_cmd->sense_buffer, ioasa64->auto_sense.data,
5463 min_t(u16, be16_to_cpu(ioasa64->auto_sense.auto_sense_len),
5464 SCSI_SENSE_BUFFERSIZE));
5466 memcpy(ipr_cmd->scsi_cmd->sense_buffer, ioasa->auto_sense.data,
5467 min_t(u16, be16_to_cpu(ioasa->auto_sense.auto_sense_len),
5468 SCSI_SENSE_BUFFERSIZE));
5473 * ipr_erp_start - Process an error response for a SCSI op
5474 * @ioa_cfg: ioa config struct
5475 * @ipr_cmd: ipr command struct
5477 * This function determines whether or not to initiate ERP
5478 * on the affected device.
5483 static void ipr_erp_start(struct ipr_ioa_cfg *ioa_cfg,
5484 struct ipr_cmnd *ipr_cmd)
5486 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd;
5487 struct ipr_resource_entry *res = scsi_cmd->device->hostdata;
5488 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
5489 u32 masked_ioasc = ioasc & IPR_IOASC_IOASC_MASK;
5492 ipr_scsi_eh_done(ipr_cmd);
5496 if (!ipr_is_gscsi(res) && masked_ioasc != IPR_IOASC_HW_DEV_BUS_STATUS)
5497 ipr_gen_sense(ipr_cmd);
5499 ipr_dump_ioasa(ioa_cfg, ipr_cmd, res);
5501 switch (masked_ioasc) {
5502 case IPR_IOASC_ABORTED_CMD_TERM_BY_HOST:
5503 if (ipr_is_naca_model(res))
5504 scsi_cmd->result |= (DID_ABORT << 16);
5506 scsi_cmd->result |= (DID_IMM_RETRY << 16);
5508 case IPR_IOASC_IR_RESOURCE_HANDLE:
5509 case IPR_IOASC_IR_NO_CMDS_TO_2ND_IOA:
5510 scsi_cmd->result |= (DID_NO_CONNECT << 16);
5512 case IPR_IOASC_HW_SEL_TIMEOUT:
5513 scsi_cmd->result |= (DID_NO_CONNECT << 16);
5514 if (!ipr_is_naca_model(res))
5515 res->needs_sync_complete = 1;
5517 case IPR_IOASC_SYNC_REQUIRED:
5519 res->needs_sync_complete = 1;
5520 scsi_cmd->result |= (DID_IMM_RETRY << 16);
5522 case IPR_IOASC_MED_DO_NOT_REALLOC: /* prevent retries */
5523 case IPR_IOASA_IR_DUAL_IOA_DISABLED:
5524 scsi_cmd->result |= (DID_PASSTHROUGH << 16);
5526 case IPR_IOASC_BUS_WAS_RESET:
5527 case IPR_IOASC_BUS_WAS_RESET_BY_OTHER:
5529 * Report the bus reset and ask for a retry. The device
5530 * will give CC/UA the next command.
5532 if (!res->resetting_device)
5533 scsi_report_bus_reset(ioa_cfg->host, scsi_cmd->device->channel);
5534 scsi_cmd->result |= (DID_ERROR << 16);
5535 if (!ipr_is_naca_model(res))
5536 res->needs_sync_complete = 1;
5538 case IPR_IOASC_HW_DEV_BUS_STATUS:
5539 scsi_cmd->result |= IPR_IOASC_SENSE_STATUS(ioasc);
5540 if (IPR_IOASC_SENSE_STATUS(ioasc) == SAM_STAT_CHECK_CONDITION) {
5541 if (!ipr_get_autosense(ipr_cmd)) {
5542 if (!ipr_is_naca_model(res)) {
5543 ipr_erp_cancel_all(ipr_cmd);
5548 if (!ipr_is_naca_model(res))
5549 res->needs_sync_complete = 1;
5551 case IPR_IOASC_NR_INIT_CMD_REQUIRED:
5554 if (IPR_IOASC_SENSE_KEY(ioasc) > RECOVERED_ERROR)
5555 scsi_cmd->result |= (DID_ERROR << 16);
5556 if (!ipr_is_vset_device(res) && !ipr_is_naca_model(res))
5557 res->needs_sync_complete = 1;
5561 scsi_dma_unmap(ipr_cmd->scsi_cmd);
5562 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
5563 scsi_cmd->scsi_done(scsi_cmd);
5567 * ipr_scsi_done - mid-layer done function
5568 * @ipr_cmd: ipr command struct
5570 * This function is invoked by the interrupt handler for
5571 * ops generated by the SCSI mid-layer
5576 static void ipr_scsi_done(struct ipr_cmnd *ipr_cmd)
5578 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
5579 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd;
5580 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
5582 scsi_set_resid(scsi_cmd, be32_to_cpu(ipr_cmd->s.ioasa.hdr.residual_data_len));
5584 if (likely(IPR_IOASC_SENSE_KEY(ioasc) == 0)) {
5585 scsi_dma_unmap(ipr_cmd->scsi_cmd);
5586 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
5587 scsi_cmd->scsi_done(scsi_cmd);
5589 ipr_erp_start(ioa_cfg, ipr_cmd);
5593 * ipr_queuecommand - Queue a mid-layer request
5594 * @scsi_cmd: scsi command struct
5595 * @done: done function
5597 * This function queues a request generated by the mid-layer.
5601 * SCSI_MLQUEUE_DEVICE_BUSY if device is busy
5602 * SCSI_MLQUEUE_HOST_BUSY if host is busy
5604 static int ipr_queuecommand(struct scsi_cmnd *scsi_cmd,
5605 void (*done) (struct scsi_cmnd *))
5607 struct ipr_ioa_cfg *ioa_cfg;
5608 struct ipr_resource_entry *res;
5609 struct ipr_ioarcb *ioarcb;
5610 struct ipr_cmnd *ipr_cmd;
5613 scsi_cmd->scsi_done = done;
5614 ioa_cfg = (struct ipr_ioa_cfg *)scsi_cmd->device->host->hostdata;
5615 res = scsi_cmd->device->hostdata;
5616 scsi_cmd->result = (DID_OK << 16);
5619 * We are currently blocking all devices due to a host reset
5620 * We have told the host to stop giving us new requests, but
5621 * ERP ops don't count. FIXME
5623 if (unlikely(!ioa_cfg->allow_cmds && !ioa_cfg->ioa_is_dead))
5624 return SCSI_MLQUEUE_HOST_BUSY;
5627 * FIXME - Create scsi_set_host_offline interface
5628 * and the ioa_is_dead check can be removed
5630 if (unlikely(ioa_cfg->ioa_is_dead || !res)) {
5631 memset(scsi_cmd->sense_buffer, 0, SCSI_SENSE_BUFFERSIZE);
5632 scsi_cmd->result = (DID_NO_CONNECT << 16);
5633 scsi_cmd->scsi_done(scsi_cmd);
5637 if (ipr_is_gata(res) && res->sata_port)
5638 return ata_sas_queuecmd(scsi_cmd, done, res->sata_port->ap);
5640 ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg);
5641 ioarcb = &ipr_cmd->ioarcb;
5642 list_add_tail(&ipr_cmd->queue, &ioa_cfg->pending_q);
5644 memcpy(ioarcb->cmd_pkt.cdb, scsi_cmd->cmnd, scsi_cmd->cmd_len);
5645 ipr_cmd->scsi_cmd = scsi_cmd;
5646 ioarcb->res_handle = res->res_handle;
5647 ipr_cmd->done = ipr_scsi_done;
5648 ipr_trc_hook(ipr_cmd, IPR_TRACE_START, IPR_GET_RES_PHYS_LOC(res));
5650 if (ipr_is_gscsi(res) || ipr_is_vset_device(res)) {
5651 if (scsi_cmd->underflow == 0)
5652 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_NO_ULEN_CHK;
5654 if (res->needs_sync_complete) {
5655 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_SYNC_COMPLETE;
5656 res->needs_sync_complete = 0;
5659 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_NO_LINK_DESC;
5660 ioarcb->cmd_pkt.flags_lo |= IPR_FLAGS_LO_DELAY_AFTER_RST;
5661 ioarcb->cmd_pkt.flags_lo |= IPR_FLAGS_LO_ALIGNED_BFR;
5662 ioarcb->cmd_pkt.flags_lo |= ipr_get_task_attributes(scsi_cmd);
5665 if (scsi_cmd->cmnd[0] >= 0xC0 &&
5666 (!ipr_is_gscsi(res) || scsi_cmd->cmnd[0] == IPR_QUERY_RSRC_STATE))
5667 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_IOACMD;
5669 if (likely(rc == 0)) {
5671 rc = ipr_build_ioadl64(ioa_cfg, ipr_cmd);
5673 rc = ipr_build_ioadl(ioa_cfg, ipr_cmd);
5676 if (likely(rc == 0)) {
5678 ipr_send_command(ipr_cmd);
5680 list_move_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
5681 return SCSI_MLQUEUE_HOST_BUSY;
5688 * ipr_ioctl - IOCTL handler
5689 * @sdev: scsi device struct
5694 * 0 on success / other on failure
5696 static int ipr_ioctl(struct scsi_device *sdev, int cmd, void __user *arg)
5698 struct ipr_resource_entry *res;
5700 res = (struct ipr_resource_entry *)sdev->hostdata;
5701 if (res && ipr_is_gata(res)) {
5702 if (cmd == HDIO_GET_IDENTITY)
5704 return ata_sas_scsi_ioctl(res->sata_port->ap, sdev, cmd, arg);
5711 * ipr_info - Get information about the card/driver
5712 * @scsi_host: scsi host struct
5715 * pointer to buffer with description string
5717 static const char * ipr_ioa_info(struct Scsi_Host *host)
5719 static char buffer[512];
5720 struct ipr_ioa_cfg *ioa_cfg;
5721 unsigned long lock_flags = 0;
5723 ioa_cfg = (struct ipr_ioa_cfg *) host->hostdata;
5725 spin_lock_irqsave(host->host_lock, lock_flags);
5726 sprintf(buffer, "IBM %X Storage Adapter", ioa_cfg->type);
5727 spin_unlock_irqrestore(host->host_lock, lock_flags);
5732 static struct scsi_host_template driver_template = {
5733 .module = THIS_MODULE,
5735 .info = ipr_ioa_info,
5737 .queuecommand = ipr_queuecommand,
5738 .eh_abort_handler = ipr_eh_abort,
5739 .eh_device_reset_handler = ipr_eh_dev_reset,
5740 .eh_host_reset_handler = ipr_eh_host_reset,
5741 .slave_alloc = ipr_slave_alloc,
5742 .slave_configure = ipr_slave_configure,
5743 .slave_destroy = ipr_slave_destroy,
5744 .target_alloc = ipr_target_alloc,
5745 .target_destroy = ipr_target_destroy,
5746 .change_queue_depth = ipr_change_queue_depth,
5747 .change_queue_type = ipr_change_queue_type,
5748 .bios_param = ipr_biosparam,
5749 .can_queue = IPR_MAX_COMMANDS,
5751 .sg_tablesize = IPR_MAX_SGLIST,
5752 .max_sectors = IPR_IOA_MAX_SECTORS,
5753 .cmd_per_lun = IPR_MAX_CMD_PER_LUN,
5754 .use_clustering = ENABLE_CLUSTERING,
5755 .shost_attrs = ipr_ioa_attrs,
5756 .sdev_attrs = ipr_dev_attrs,
5757 .proc_name = IPR_NAME
5761 * ipr_ata_phy_reset - libata phy_reset handler
5762 * @ap: ata port to reset
5765 static void ipr_ata_phy_reset(struct ata_port *ap)
5767 unsigned long flags;
5768 struct ipr_sata_port *sata_port = ap->private_data;
5769 struct ipr_resource_entry *res = sata_port->res;
5770 struct ipr_ioa_cfg *ioa_cfg = sata_port->ioa_cfg;
5774 spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
5775 while(ioa_cfg->in_reset_reload) {
5776 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
5777 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
5778 spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
5781 if (!ioa_cfg->allow_cmds)
5784 rc = ipr_device_reset(ioa_cfg, res);
5787 ap->link.device[0].class = ATA_DEV_NONE;
5791 ap->link.device[0].class = res->ata_class;
5792 if (ap->link.device[0].class == ATA_DEV_UNKNOWN)
5793 ap->link.device[0].class = ATA_DEV_NONE;
5796 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
5801 * ipr_ata_post_internal - Cleanup after an internal command
5802 * @qc: ATA queued command
5807 static void ipr_ata_post_internal(struct ata_queued_cmd *qc)
5809 struct ipr_sata_port *sata_port = qc->ap->private_data;
5810 struct ipr_ioa_cfg *ioa_cfg = sata_port->ioa_cfg;
5811 struct ipr_cmnd *ipr_cmd;
5812 unsigned long flags;
5814 spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
5815 while(ioa_cfg->in_reset_reload) {
5816 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
5817 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
5818 spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
5821 list_for_each_entry(ipr_cmd, &ioa_cfg->pending_q, queue) {
5822 if (ipr_cmd->qc == qc) {
5823 ipr_device_reset(ioa_cfg, sata_port->res);
5827 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
5831 * ipr_copy_sata_tf - Copy a SATA taskfile to an IOA data structure
5832 * @regs: destination
5833 * @tf: source ATA taskfile
5838 static void ipr_copy_sata_tf(struct ipr_ioarcb_ata_regs *regs,
5839 struct ata_taskfile *tf)
5841 regs->feature = tf->feature;
5842 regs->nsect = tf->nsect;
5843 regs->lbal = tf->lbal;
5844 regs->lbam = tf->lbam;
5845 regs->lbah = tf->lbah;
5846 regs->device = tf->device;
5847 regs->command = tf->command;
5848 regs->hob_feature = tf->hob_feature;
5849 regs->hob_nsect = tf->hob_nsect;
5850 regs->hob_lbal = tf->hob_lbal;
5851 regs->hob_lbam = tf->hob_lbam;
5852 regs->hob_lbah = tf->hob_lbah;
5853 regs->ctl = tf->ctl;
5857 * ipr_sata_done - done function for SATA commands
5858 * @ipr_cmd: ipr command struct
5860 * This function is invoked by the interrupt handler for
5861 * ops generated by the SCSI mid-layer to SATA devices
5866 static void ipr_sata_done(struct ipr_cmnd *ipr_cmd)
5868 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
5869 struct ata_queued_cmd *qc = ipr_cmd->qc;
5870 struct ipr_sata_port *sata_port = qc->ap->private_data;
5871 struct ipr_resource_entry *res = sata_port->res;
5872 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
5874 if (ipr_cmd->ioa_cfg->sis64)
5875 memcpy(&sata_port->ioasa, &ipr_cmd->s.ioasa64.u.gata,
5876 sizeof(struct ipr_ioasa_gata));
5878 memcpy(&sata_port->ioasa, &ipr_cmd->s.ioasa.u.gata,
5879 sizeof(struct ipr_ioasa_gata));
5880 ipr_dump_ioasa(ioa_cfg, ipr_cmd, res);
5882 if (be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc_specific) & IPR_ATA_DEVICE_WAS_RESET)
5883 scsi_report_device_reset(ioa_cfg->host, res->bus, res->target);
5885 if (IPR_IOASC_SENSE_KEY(ioasc) > RECOVERED_ERROR)
5886 qc->err_mask |= __ac_err_mask(sata_port->ioasa.status);
5888 qc->err_mask |= ac_err_mask(sata_port->ioasa.status);
5889 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
5890 ata_qc_complete(qc);
5894 * ipr_build_ata_ioadl64 - Build an ATA scatter/gather list
5895 * @ipr_cmd: ipr command struct
5896 * @qc: ATA queued command
5899 static void ipr_build_ata_ioadl64(struct ipr_cmnd *ipr_cmd,
5900 struct ata_queued_cmd *qc)
5902 u32 ioadl_flags = 0;
5903 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
5904 struct ipr_ioadl64_desc *ioadl64 = ipr_cmd->i.ioadl64;
5905 struct ipr_ioadl64_desc *last_ioadl64 = NULL;
5906 int len = qc->nbytes;
5907 struct scatterlist *sg;
5909 dma_addr_t dma_addr = ipr_cmd->dma_addr;
5914 if (qc->dma_dir == DMA_TO_DEVICE) {
5915 ioadl_flags = IPR_IOADL_FLAGS_WRITE;
5916 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ;
5917 } else if (qc->dma_dir == DMA_FROM_DEVICE)
5918 ioadl_flags = IPR_IOADL_FLAGS_READ;
5920 ioarcb->data_transfer_length = cpu_to_be32(len);
5922 cpu_to_be32(sizeof(struct ipr_ioadl64_desc) * ipr_cmd->dma_use_sg);
5923 ioarcb->u.sis64_addr_data.data_ioadl_addr =
5924 cpu_to_be64(dma_addr + offsetof(struct ipr_cmnd, i.ata_ioadl));
5926 for_each_sg(qc->sg, sg, qc->n_elem, si) {
5927 ioadl64->flags = cpu_to_be32(ioadl_flags);
5928 ioadl64->data_len = cpu_to_be32(sg_dma_len(sg));
5929 ioadl64->address = cpu_to_be64(sg_dma_address(sg));
5931 last_ioadl64 = ioadl64;
5935 if (likely(last_ioadl64))
5936 last_ioadl64->flags |= cpu_to_be32(IPR_IOADL_FLAGS_LAST);
5940 * ipr_build_ata_ioadl - Build an ATA scatter/gather list
5941 * @ipr_cmd: ipr command struct
5942 * @qc: ATA queued command
5945 static void ipr_build_ata_ioadl(struct ipr_cmnd *ipr_cmd,
5946 struct ata_queued_cmd *qc)
5948 u32 ioadl_flags = 0;
5949 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
5950 struct ipr_ioadl_desc *ioadl = ipr_cmd->i.ioadl;
5951 struct ipr_ioadl_desc *last_ioadl = NULL;
5952 int len = qc->nbytes;
5953 struct scatterlist *sg;
5959 if (qc->dma_dir == DMA_TO_DEVICE) {
5960 ioadl_flags = IPR_IOADL_FLAGS_WRITE;
5961 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ;
5962 ioarcb->data_transfer_length = cpu_to_be32(len);
5964 cpu_to_be32(sizeof(struct ipr_ioadl_desc) * ipr_cmd->dma_use_sg);
5965 } else if (qc->dma_dir == DMA_FROM_DEVICE) {
5966 ioadl_flags = IPR_IOADL_FLAGS_READ;
5967 ioarcb->read_data_transfer_length = cpu_to_be32(len);
5968 ioarcb->read_ioadl_len =
5969 cpu_to_be32(sizeof(struct ipr_ioadl_desc) * ipr_cmd->dma_use_sg);
5972 for_each_sg(qc->sg, sg, qc->n_elem, si) {
5973 ioadl->flags_and_data_len = cpu_to_be32(ioadl_flags | sg_dma_len(sg));
5974 ioadl->address = cpu_to_be32(sg_dma_address(sg));
5980 if (likely(last_ioadl))
5981 last_ioadl->flags_and_data_len |= cpu_to_be32(IPR_IOADL_FLAGS_LAST);
5985 * ipr_qc_issue - Issue a SATA qc to a device
5986 * @qc: queued command
5991 static unsigned int ipr_qc_issue(struct ata_queued_cmd *qc)
5993 struct ata_port *ap = qc->ap;
5994 struct ipr_sata_port *sata_port = ap->private_data;
5995 struct ipr_resource_entry *res = sata_port->res;
5996 struct ipr_ioa_cfg *ioa_cfg = sata_port->ioa_cfg;
5997 struct ipr_cmnd *ipr_cmd;
5998 struct ipr_ioarcb *ioarcb;
5999 struct ipr_ioarcb_ata_regs *regs;
6001 if (unlikely(!ioa_cfg->allow_cmds || ioa_cfg->ioa_is_dead))
6002 return AC_ERR_SYSTEM;
6004 ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg);
6005 ioarcb = &ipr_cmd->ioarcb;
6007 if (ioa_cfg->sis64) {
6008 regs = &ipr_cmd->i.ata_ioadl.regs;
6009 ioarcb->add_cmd_parms_offset = cpu_to_be16(sizeof(*ioarcb));
6011 regs = &ioarcb->u.add_data.u.regs;
6013 memset(regs, 0, sizeof(*regs));
6014 ioarcb->add_cmd_parms_len = cpu_to_be16(sizeof(*regs));
6016 list_add_tail(&ipr_cmd->queue, &ioa_cfg->pending_q);
6018 ipr_cmd->done = ipr_sata_done;
6019 ipr_cmd->ioarcb.res_handle = res->res_handle;
6020 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_ATA_PASSTHRU;
6021 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_NO_LINK_DESC;
6022 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_NO_ULEN_CHK;
6023 ipr_cmd->dma_use_sg = qc->n_elem;
6026 ipr_build_ata_ioadl64(ipr_cmd, qc);
6028 ipr_build_ata_ioadl(ipr_cmd, qc);
6030 regs->flags |= IPR_ATA_FLAG_STATUS_ON_GOOD_COMPLETION;
6031 ipr_copy_sata_tf(regs, &qc->tf);
6032 memcpy(ioarcb->cmd_pkt.cdb, qc->cdb, IPR_MAX_CDB_LEN);
6033 ipr_trc_hook(ipr_cmd, IPR_TRACE_START, IPR_GET_RES_PHYS_LOC(res));
6035 switch (qc->tf.protocol) {
6036 case ATA_PROT_NODATA:
6041 regs->flags |= IPR_ATA_FLAG_XFER_TYPE_DMA;
6044 case ATAPI_PROT_PIO:
6045 case ATAPI_PROT_NODATA:
6046 regs->flags |= IPR_ATA_FLAG_PACKET_CMD;
6049 case ATAPI_PROT_DMA:
6050 regs->flags |= IPR_ATA_FLAG_PACKET_CMD;
6051 regs->flags |= IPR_ATA_FLAG_XFER_TYPE_DMA;
6056 return AC_ERR_INVALID;
6061 ipr_send_command(ipr_cmd);
6067 * ipr_qc_fill_rtf - Read result TF
6068 * @qc: ATA queued command
6073 static bool ipr_qc_fill_rtf(struct ata_queued_cmd *qc)
6075 struct ipr_sata_port *sata_port = qc->ap->private_data;
6076 struct ipr_ioasa_gata *g = &sata_port->ioasa;
6077 struct ata_taskfile *tf = &qc->result_tf;
6079 tf->feature = g->error;
6080 tf->nsect = g->nsect;
6084 tf->device = g->device;
6085 tf->command = g->status;
6086 tf->hob_nsect = g->hob_nsect;
6087 tf->hob_lbal = g->hob_lbal;
6088 tf->hob_lbam = g->hob_lbam;
6089 tf->hob_lbah = g->hob_lbah;
6090 tf->ctl = g->alt_status;
6095 static struct ata_port_operations ipr_sata_ops = {
6096 .phy_reset = ipr_ata_phy_reset,
6097 .hardreset = ipr_sata_reset,
6098 .post_internal_cmd = ipr_ata_post_internal,
6099 .qc_prep = ata_noop_qc_prep,
6100 .qc_issue = ipr_qc_issue,
6101 .qc_fill_rtf = ipr_qc_fill_rtf,
6102 .port_start = ata_sas_port_start,
6103 .port_stop = ata_sas_port_stop
6106 static struct ata_port_info sata_port_info = {
6107 .flags = ATA_FLAG_SATA | ATA_FLAG_NO_LEGACY | ATA_FLAG_SATA_RESET |
6108 ATA_FLAG_MMIO | ATA_FLAG_PIO_DMA,
6109 .pio_mask = 0x10, /* pio4 */
6111 .udma_mask = 0x7f, /* udma0-6 */
6112 .port_ops = &ipr_sata_ops
6115 #ifdef CONFIG_PPC_PSERIES
6116 static const u16 ipr_blocked_processors[] = {
6128 * ipr_invalid_adapter - Determine if this adapter is supported on this hardware
6129 * @ioa_cfg: ioa cfg struct
6131 * Adapters that use Gemstone revision < 3.1 do not work reliably on
6132 * certain pSeries hardware. This function determines if the given
6133 * adapter is in one of these confgurations or not.
6136 * 1 if adapter is not supported / 0 if adapter is supported
6138 static int ipr_invalid_adapter(struct ipr_ioa_cfg *ioa_cfg)
6142 if ((ioa_cfg->type == 0x5702) && (ioa_cfg->pdev->revision < 4)) {
6143 for (i = 0; i < ARRAY_SIZE(ipr_blocked_processors); i++){
6144 if (__is_processor(ipr_blocked_processors[i]))
6151 #define ipr_invalid_adapter(ioa_cfg) 0
6155 * ipr_ioa_bringdown_done - IOA bring down completion.
6156 * @ipr_cmd: ipr command struct
6158 * This function processes the completion of an adapter bring down.
6159 * It wakes any reset sleepers.
6164 static int ipr_ioa_bringdown_done(struct ipr_cmnd *ipr_cmd)
6166 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6169 ioa_cfg->in_reset_reload = 0;
6170 ioa_cfg->reset_retries = 0;
6171 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
6172 wake_up_all(&ioa_cfg->reset_wait_q);
6174 spin_unlock_irq(ioa_cfg->host->host_lock);
6175 scsi_unblock_requests(ioa_cfg->host);
6176 spin_lock_irq(ioa_cfg->host->host_lock);
6179 return IPR_RC_JOB_RETURN;
6183 * ipr_ioa_reset_done - IOA reset completion.
6184 * @ipr_cmd: ipr command struct
6186 * This function processes the completion of an adapter reset.
6187 * It schedules any necessary mid-layer add/removes and
6188 * wakes any reset sleepers.
6193 static int ipr_ioa_reset_done(struct ipr_cmnd *ipr_cmd)
6195 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6196 struct ipr_resource_entry *res;
6197 struct ipr_hostrcb *hostrcb, *temp;
6201 ioa_cfg->in_reset_reload = 0;
6202 ioa_cfg->allow_cmds = 1;
6203 ioa_cfg->reset_cmd = NULL;
6204 ioa_cfg->doorbell |= IPR_RUNTIME_RESET;
6206 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) {
6207 if (ioa_cfg->allow_ml_add_del && (res->add_to_ml || res->del_from_ml)) {
6212 schedule_work(&ioa_cfg->work_q);
6214 list_for_each_entry_safe(hostrcb, temp, &ioa_cfg->hostrcb_free_q, queue) {
6215 list_del(&hostrcb->queue);
6216 if (i++ < IPR_NUM_LOG_HCAMS)
6217 ipr_send_hcam(ioa_cfg, IPR_HCAM_CDB_OP_CODE_LOG_DATA, hostrcb);
6219 ipr_send_hcam(ioa_cfg, IPR_HCAM_CDB_OP_CODE_CONFIG_CHANGE, hostrcb);
6222 scsi_report_bus_reset(ioa_cfg->host, IPR_VSET_BUS);
6223 dev_info(&ioa_cfg->pdev->dev, "IOA initialized.\n");
6225 ioa_cfg->reset_retries = 0;
6226 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
6227 wake_up_all(&ioa_cfg->reset_wait_q);
6229 spin_unlock(ioa_cfg->host->host_lock);
6230 scsi_unblock_requests(ioa_cfg->host);
6231 spin_lock(ioa_cfg->host->host_lock);
6233 if (!ioa_cfg->allow_cmds)
6234 scsi_block_requests(ioa_cfg->host);
6237 return IPR_RC_JOB_RETURN;
6241 * ipr_set_sup_dev_dflt - Initialize a Set Supported Device buffer
6242 * @supported_dev: supported device struct
6243 * @vpids: vendor product id struct
6248 static void ipr_set_sup_dev_dflt(struct ipr_supported_device *supported_dev,
6249 struct ipr_std_inq_vpids *vpids)
6251 memset(supported_dev, 0, sizeof(struct ipr_supported_device));
6252 memcpy(&supported_dev->vpids, vpids, sizeof(struct ipr_std_inq_vpids));
6253 supported_dev->num_records = 1;
6254 supported_dev->data_length =
6255 cpu_to_be16(sizeof(struct ipr_supported_device));
6256 supported_dev->reserved = 0;
6260 * ipr_set_supported_devs - Send Set Supported Devices for a device
6261 * @ipr_cmd: ipr command struct
6263 * This function sends a Set Supported Devices to the adapter
6266 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
6268 static int ipr_set_supported_devs(struct ipr_cmnd *ipr_cmd)
6270 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6271 struct ipr_supported_device *supp_dev = &ioa_cfg->vpd_cbs->supp_dev;
6272 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
6273 struct ipr_resource_entry *res = ipr_cmd->u.res;
6275 ipr_cmd->job_step = ipr_ioa_reset_done;
6277 list_for_each_entry_continue(res, &ioa_cfg->used_res_q, queue) {
6278 if (!ipr_is_scsi_disk(res))
6281 ipr_cmd->u.res = res;
6282 ipr_set_sup_dev_dflt(supp_dev, &res->std_inq_data.vpids);
6284 ioarcb->res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE);
6285 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ;
6286 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_IOACMD;
6288 ioarcb->cmd_pkt.cdb[0] = IPR_SET_SUPPORTED_DEVICES;
6289 ioarcb->cmd_pkt.cdb[1] = IPR_SET_ALL_SUPPORTED_DEVICES;
6290 ioarcb->cmd_pkt.cdb[7] = (sizeof(struct ipr_supported_device) >> 8) & 0xff;
6291 ioarcb->cmd_pkt.cdb[8] = sizeof(struct ipr_supported_device) & 0xff;
6293 ipr_init_ioadl(ipr_cmd,
6294 ioa_cfg->vpd_cbs_dma +
6295 offsetof(struct ipr_misc_cbs, supp_dev),
6296 sizeof(struct ipr_supported_device),
6297 IPR_IOADL_FLAGS_WRITE_LAST);
6299 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout,
6300 IPR_SET_SUP_DEVICE_TIMEOUT);
6302 if (!ioa_cfg->sis64)
6303 ipr_cmd->job_step = ipr_set_supported_devs;
6304 return IPR_RC_JOB_RETURN;
6307 return IPR_RC_JOB_CONTINUE;
6311 * ipr_get_mode_page - Locate specified mode page
6312 * @mode_pages: mode page buffer
6313 * @page_code: page code to find
6314 * @len: minimum required length for mode page
6317 * pointer to mode page / NULL on failure
6319 static void *ipr_get_mode_page(struct ipr_mode_pages *mode_pages,
6320 u32 page_code, u32 len)
6322 struct ipr_mode_page_hdr *mode_hdr;
6326 if (!mode_pages || (mode_pages->hdr.length == 0))
6329 length = (mode_pages->hdr.length + 1) - 4 - mode_pages->hdr.block_desc_len;
6330 mode_hdr = (struct ipr_mode_page_hdr *)
6331 (mode_pages->data + mode_pages->hdr.block_desc_len);
6334 if (IPR_GET_MODE_PAGE_CODE(mode_hdr) == page_code) {
6335 if (mode_hdr->page_length >= (len - sizeof(struct ipr_mode_page_hdr)))
6339 page_length = (sizeof(struct ipr_mode_page_hdr) +
6340 mode_hdr->page_length);
6341 length -= page_length;
6342 mode_hdr = (struct ipr_mode_page_hdr *)
6343 ((unsigned long)mode_hdr + page_length);
6350 * ipr_check_term_power - Check for term power errors
6351 * @ioa_cfg: ioa config struct
6352 * @mode_pages: IOAFP mode pages buffer
6354 * Check the IOAFP's mode page 28 for term power errors
6359 static void ipr_check_term_power(struct ipr_ioa_cfg *ioa_cfg,
6360 struct ipr_mode_pages *mode_pages)
6364 struct ipr_dev_bus_entry *bus;
6365 struct ipr_mode_page28 *mode_page;
6367 mode_page = ipr_get_mode_page(mode_pages, 0x28,
6368 sizeof(struct ipr_mode_page28));
6370 entry_length = mode_page->entry_length;
6372 bus = mode_page->bus;
6374 for (i = 0; i < mode_page->num_entries; i++) {
6375 if (bus->flags & IPR_SCSI_ATTR_NO_TERM_PWR) {
6376 dev_err(&ioa_cfg->pdev->dev,
6377 "Term power is absent on scsi bus %d\n",
6381 bus = (struct ipr_dev_bus_entry *)((char *)bus + entry_length);
6386 * ipr_scsi_bus_speed_limit - Limit the SCSI speed based on SES table
6387 * @ioa_cfg: ioa config struct
6389 * Looks through the config table checking for SES devices. If
6390 * the SES device is in the SES table indicating a maximum SCSI
6391 * bus speed, the speed is limited for the bus.
6396 static void ipr_scsi_bus_speed_limit(struct ipr_ioa_cfg *ioa_cfg)
6401 for (i = 0; i < IPR_MAX_NUM_BUSES; i++) {
6402 max_xfer_rate = ipr_get_max_scsi_speed(ioa_cfg, i,
6403 ioa_cfg->bus_attr[i].bus_width);
6405 if (max_xfer_rate < ioa_cfg->bus_attr[i].max_xfer_rate)
6406 ioa_cfg->bus_attr[i].max_xfer_rate = max_xfer_rate;
6411 * ipr_modify_ioafp_mode_page_28 - Modify IOAFP Mode Page 28
6412 * @ioa_cfg: ioa config struct
6413 * @mode_pages: mode page 28 buffer
6415 * Updates mode page 28 based on driver configuration
6420 static void ipr_modify_ioafp_mode_page_28(struct ipr_ioa_cfg *ioa_cfg,
6421 struct ipr_mode_pages *mode_pages)
6423 int i, entry_length;
6424 struct ipr_dev_bus_entry *bus;
6425 struct ipr_bus_attributes *bus_attr;
6426 struct ipr_mode_page28 *mode_page;
6428 mode_page = ipr_get_mode_page(mode_pages, 0x28,
6429 sizeof(struct ipr_mode_page28));
6431 entry_length = mode_page->entry_length;
6433 /* Loop for each device bus entry */
6434 for (i = 0, bus = mode_page->bus;
6435 i < mode_page->num_entries;
6436 i++, bus = (struct ipr_dev_bus_entry *)((u8 *)bus + entry_length)) {
6437 if (bus->res_addr.bus > IPR_MAX_NUM_BUSES) {
6438 dev_err(&ioa_cfg->pdev->dev,
6439 "Invalid resource address reported: 0x%08X\n",
6440 IPR_GET_PHYS_LOC(bus->res_addr));
6444 bus_attr = &ioa_cfg->bus_attr[i];
6445 bus->extended_reset_delay = IPR_EXTENDED_RESET_DELAY;
6446 bus->bus_width = bus_attr->bus_width;
6447 bus->max_xfer_rate = cpu_to_be32(bus_attr->max_xfer_rate);
6448 bus->flags &= ~IPR_SCSI_ATTR_QAS_MASK;
6449 if (bus_attr->qas_enabled)
6450 bus->flags |= IPR_SCSI_ATTR_ENABLE_QAS;
6452 bus->flags |= IPR_SCSI_ATTR_DISABLE_QAS;
6457 * ipr_build_mode_select - Build a mode select command
6458 * @ipr_cmd: ipr command struct
6459 * @res_handle: resource handle to send command to
6460 * @parm: Byte 2 of Mode Sense command
6461 * @dma_addr: DMA buffer address
6462 * @xfer_len: data transfer length
6467 static void ipr_build_mode_select(struct ipr_cmnd *ipr_cmd,
6468 __be32 res_handle, u8 parm,
6469 dma_addr_t dma_addr, u8 xfer_len)
6471 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
6473 ioarcb->res_handle = res_handle;
6474 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_SCSICDB;
6475 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ;
6476 ioarcb->cmd_pkt.cdb[0] = MODE_SELECT;
6477 ioarcb->cmd_pkt.cdb[1] = parm;
6478 ioarcb->cmd_pkt.cdb[4] = xfer_len;
6480 ipr_init_ioadl(ipr_cmd, dma_addr, xfer_len, IPR_IOADL_FLAGS_WRITE_LAST);
6484 * ipr_ioafp_mode_select_page28 - Issue Mode Select Page 28 to IOA
6485 * @ipr_cmd: ipr command struct
6487 * This function sets up the SCSI bus attributes and sends
6488 * a Mode Select for Page 28 to activate them.
6493 static int ipr_ioafp_mode_select_page28(struct ipr_cmnd *ipr_cmd)
6495 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6496 struct ipr_mode_pages *mode_pages = &ioa_cfg->vpd_cbs->mode_pages;
6500 ipr_scsi_bus_speed_limit(ioa_cfg);
6501 ipr_check_term_power(ioa_cfg, mode_pages);
6502 ipr_modify_ioafp_mode_page_28(ioa_cfg, mode_pages);
6503 length = mode_pages->hdr.length + 1;
6504 mode_pages->hdr.length = 0;
6506 ipr_build_mode_select(ipr_cmd, cpu_to_be32(IPR_IOA_RES_HANDLE), 0x11,
6507 ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, mode_pages),
6510 ipr_cmd->job_step = ipr_set_supported_devs;
6511 ipr_cmd->u.res = list_entry(ioa_cfg->used_res_q.next,
6512 struct ipr_resource_entry, queue);
6513 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT);
6516 return IPR_RC_JOB_RETURN;
6520 * ipr_build_mode_sense - Builds a mode sense command
6521 * @ipr_cmd: ipr command struct
6522 * @res: resource entry struct
6523 * @parm: Byte 2 of mode sense command
6524 * @dma_addr: DMA address of mode sense buffer
6525 * @xfer_len: Size of DMA buffer
6530 static void ipr_build_mode_sense(struct ipr_cmnd *ipr_cmd,
6532 u8 parm, dma_addr_t dma_addr, u8 xfer_len)
6534 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
6536 ioarcb->res_handle = res_handle;
6537 ioarcb->cmd_pkt.cdb[0] = MODE_SENSE;
6538 ioarcb->cmd_pkt.cdb[2] = parm;
6539 ioarcb->cmd_pkt.cdb[4] = xfer_len;
6540 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_SCSICDB;
6542 ipr_init_ioadl(ipr_cmd, dma_addr, xfer_len, IPR_IOADL_FLAGS_READ_LAST);
6546 * ipr_reset_cmd_failed - Handle failure of IOA reset command
6547 * @ipr_cmd: ipr command struct
6549 * This function handles the failure of an IOA bringup command.
6554 static int ipr_reset_cmd_failed(struct ipr_cmnd *ipr_cmd)
6556 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6557 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
6559 dev_err(&ioa_cfg->pdev->dev,
6560 "0x%02X failed with IOASC: 0x%08X\n",
6561 ipr_cmd->ioarcb.cmd_pkt.cdb[0], ioasc);
6563 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
6564 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
6565 return IPR_RC_JOB_RETURN;
6569 * ipr_reset_mode_sense_failed - Handle failure of IOAFP mode sense
6570 * @ipr_cmd: ipr command struct
6572 * This function handles the failure of a Mode Sense to the IOAFP.
6573 * Some adapters do not handle all mode pages.
6576 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
6578 static int ipr_reset_mode_sense_failed(struct ipr_cmnd *ipr_cmd)
6580 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6581 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
6583 if (ioasc == IPR_IOASC_IR_INVALID_REQ_TYPE_OR_PKT) {
6584 ipr_cmd->job_step = ipr_set_supported_devs;
6585 ipr_cmd->u.res = list_entry(ioa_cfg->used_res_q.next,
6586 struct ipr_resource_entry, queue);
6587 return IPR_RC_JOB_CONTINUE;
6590 return ipr_reset_cmd_failed(ipr_cmd);
6594 * ipr_ioafp_mode_sense_page28 - Issue Mode Sense Page 28 to IOA
6595 * @ipr_cmd: ipr command struct
6597 * This function send a Page 28 mode sense to the IOA to
6598 * retrieve SCSI bus attributes.
6603 static int ipr_ioafp_mode_sense_page28(struct ipr_cmnd *ipr_cmd)
6605 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6608 ipr_build_mode_sense(ipr_cmd, cpu_to_be32(IPR_IOA_RES_HANDLE),
6609 0x28, ioa_cfg->vpd_cbs_dma +
6610 offsetof(struct ipr_misc_cbs, mode_pages),
6611 sizeof(struct ipr_mode_pages));
6613 ipr_cmd->job_step = ipr_ioafp_mode_select_page28;
6614 ipr_cmd->job_step_failed = ipr_reset_mode_sense_failed;
6616 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT);
6619 return IPR_RC_JOB_RETURN;
6623 * ipr_ioafp_mode_select_page24 - Issue Mode Select to IOA
6624 * @ipr_cmd: ipr command struct
6626 * This function enables dual IOA RAID support if possible.
6631 static int ipr_ioafp_mode_select_page24(struct ipr_cmnd *ipr_cmd)
6633 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6634 struct ipr_mode_pages *mode_pages = &ioa_cfg->vpd_cbs->mode_pages;
6635 struct ipr_mode_page24 *mode_page;
6639 mode_page = ipr_get_mode_page(mode_pages, 0x24,
6640 sizeof(struct ipr_mode_page24));
6643 mode_page->flags |= IPR_ENABLE_DUAL_IOA_AF;
6645 length = mode_pages->hdr.length + 1;
6646 mode_pages->hdr.length = 0;
6648 ipr_build_mode_select(ipr_cmd, cpu_to_be32(IPR_IOA_RES_HANDLE), 0x11,
6649 ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, mode_pages),
6652 ipr_cmd->job_step = ipr_ioafp_mode_sense_page28;
6653 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT);
6656 return IPR_RC_JOB_RETURN;
6660 * ipr_reset_mode_sense_page24_failed - Handle failure of IOAFP mode sense
6661 * @ipr_cmd: ipr command struct
6663 * This function handles the failure of a Mode Sense to the IOAFP.
6664 * Some adapters do not handle all mode pages.
6667 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
6669 static int ipr_reset_mode_sense_page24_failed(struct ipr_cmnd *ipr_cmd)
6671 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
6673 if (ioasc == IPR_IOASC_IR_INVALID_REQ_TYPE_OR_PKT) {
6674 ipr_cmd->job_step = ipr_ioafp_mode_sense_page28;
6675 return IPR_RC_JOB_CONTINUE;
6678 return ipr_reset_cmd_failed(ipr_cmd);
6682 * ipr_ioafp_mode_sense_page24 - Issue Page 24 Mode Sense to IOA
6683 * @ipr_cmd: ipr command struct
6685 * This function send a mode sense to the IOA to retrieve
6686 * the IOA Advanced Function Control mode page.
6691 static int ipr_ioafp_mode_sense_page24(struct ipr_cmnd *ipr_cmd)
6693 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6696 ipr_build_mode_sense(ipr_cmd, cpu_to_be32(IPR_IOA_RES_HANDLE),
6697 0x24, ioa_cfg->vpd_cbs_dma +
6698 offsetof(struct ipr_misc_cbs, mode_pages),
6699 sizeof(struct ipr_mode_pages));
6701 ipr_cmd->job_step = ipr_ioafp_mode_select_page24;
6702 ipr_cmd->job_step_failed = ipr_reset_mode_sense_page24_failed;
6704 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT);
6707 return IPR_RC_JOB_RETURN;
6711 * ipr_init_res_table - Initialize the resource table
6712 * @ipr_cmd: ipr command struct
6714 * This function looks through the existing resource table, comparing
6715 * it with the config table. This function will take care of old/new
6716 * devices and schedule adding/removing them from the mid-layer
6720 * IPR_RC_JOB_CONTINUE
6722 static int ipr_init_res_table(struct ipr_cmnd *ipr_cmd)
6724 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6725 struct ipr_resource_entry *res, *temp;
6726 struct ipr_config_table_entry_wrapper cfgtew;
6727 int entries, found, flag, i;
6732 flag = ioa_cfg->u.cfg_table64->hdr64.flags;
6734 flag = ioa_cfg->u.cfg_table->hdr.flags;
6736 if (flag & IPR_UCODE_DOWNLOAD_REQ)
6737 dev_err(&ioa_cfg->pdev->dev, "Microcode download required\n");
6739 list_for_each_entry_safe(res, temp, &ioa_cfg->used_res_q, queue)
6740 list_move_tail(&res->queue, &old_res);
6743 entries = be16_to_cpu(ioa_cfg->u.cfg_table64->hdr64.num_entries);
6745 entries = ioa_cfg->u.cfg_table->hdr.num_entries;
6747 for (i = 0; i < entries; i++) {
6749 cfgtew.u.cfgte64 = &ioa_cfg->u.cfg_table64->dev[i];
6751 cfgtew.u.cfgte = &ioa_cfg->u.cfg_table->dev[i];
6754 list_for_each_entry_safe(res, temp, &old_res, queue) {
6755 if (ipr_is_same_device(res, &cfgtew)) {
6756 list_move_tail(&res->queue, &ioa_cfg->used_res_q);
6763 if (list_empty(&ioa_cfg->free_res_q)) {
6764 dev_err(&ioa_cfg->pdev->dev, "Too many devices attached\n");
6769 res = list_entry(ioa_cfg->free_res_q.next,
6770 struct ipr_resource_entry, queue);
6771 list_move_tail(&res->queue, &ioa_cfg->used_res_q);
6772 ipr_init_res_entry(res, &cfgtew);
6777 ipr_update_res_entry(res, &cfgtew);
6780 list_for_each_entry_safe(res, temp, &old_res, queue) {
6782 res->del_from_ml = 1;
6783 res->res_handle = IPR_INVALID_RES_HANDLE;
6784 list_move_tail(&res->queue, &ioa_cfg->used_res_q);
6788 list_for_each_entry_safe(res, temp, &old_res, queue) {
6789 ipr_clear_res_target(res);
6790 list_move_tail(&res->queue, &ioa_cfg->free_res_q);
6793 if (ioa_cfg->dual_raid && ipr_dual_ioa_raid)
6794 ipr_cmd->job_step = ipr_ioafp_mode_sense_page24;
6796 ipr_cmd->job_step = ipr_ioafp_mode_sense_page28;
6799 return IPR_RC_JOB_CONTINUE;
6803 * ipr_ioafp_query_ioa_cfg - Send a Query IOA Config to the adapter.
6804 * @ipr_cmd: ipr command struct
6806 * This function sends a Query IOA Configuration command
6807 * to the adapter to retrieve the IOA configuration table.
6812 static int ipr_ioafp_query_ioa_cfg(struct ipr_cmnd *ipr_cmd)
6814 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6815 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
6816 struct ipr_inquiry_page3 *ucode_vpd = &ioa_cfg->vpd_cbs->page3_data;
6817 struct ipr_inquiry_cap *cap = &ioa_cfg->vpd_cbs->cap;
6820 if (cap->cap & IPR_CAP_DUAL_IOA_RAID)
6821 ioa_cfg->dual_raid = 1;
6822 dev_info(&ioa_cfg->pdev->dev, "Adapter firmware version: %02X%02X%02X%02X\n",
6823 ucode_vpd->major_release, ucode_vpd->card_type,
6824 ucode_vpd->minor_release[0], ucode_vpd->minor_release[1]);
6825 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_IOACMD;
6826 ioarcb->res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE);
6828 ioarcb->cmd_pkt.cdb[0] = IPR_QUERY_IOA_CONFIG;
6829 ioarcb->cmd_pkt.cdb[6] = (ioa_cfg->cfg_table_size >> 16) & 0xff;
6830 ioarcb->cmd_pkt.cdb[7] = (ioa_cfg->cfg_table_size >> 8) & 0xff;
6831 ioarcb->cmd_pkt.cdb[8] = ioa_cfg->cfg_table_size & 0xff;
6833 ipr_init_ioadl(ipr_cmd, ioa_cfg->cfg_table_dma, ioa_cfg->cfg_table_size,
6834 IPR_IOADL_FLAGS_READ_LAST);
6836 ipr_cmd->job_step = ipr_init_res_table;
6838 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT);
6841 return IPR_RC_JOB_RETURN;
6845 * ipr_ioafp_inquiry - Send an Inquiry to the adapter.
6846 * @ipr_cmd: ipr command struct
6848 * This utility function sends an inquiry to the adapter.
6853 static void ipr_ioafp_inquiry(struct ipr_cmnd *ipr_cmd, u8 flags, u8 page,
6854 dma_addr_t dma_addr, u8 xfer_len)
6856 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
6859 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_SCSICDB;
6860 ioarcb->res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE);
6862 ioarcb->cmd_pkt.cdb[0] = INQUIRY;
6863 ioarcb->cmd_pkt.cdb[1] = flags;
6864 ioarcb->cmd_pkt.cdb[2] = page;
6865 ioarcb->cmd_pkt.cdb[4] = xfer_len;
6867 ipr_init_ioadl(ipr_cmd, dma_addr, xfer_len, IPR_IOADL_FLAGS_READ_LAST);
6869 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT);
6874 * ipr_inquiry_page_supported - Is the given inquiry page supported
6875 * @page0: inquiry page 0 buffer
6878 * This function determines if the specified inquiry page is supported.
6881 * 1 if page is supported / 0 if not
6883 static int ipr_inquiry_page_supported(struct ipr_inquiry_page0 *page0, u8 page)
6887 for (i = 0; i < min_t(u8, page0->len, IPR_INQUIRY_PAGE0_ENTRIES); i++)
6888 if (page0->page[i] == page)
6895 * ipr_ioafp_cap_inquiry - Send a Page 0xD0 Inquiry to the adapter.
6896 * @ipr_cmd: ipr command struct
6898 * This function sends a Page 0xD0 inquiry to the adapter
6899 * to retrieve adapter capabilities.
6902 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
6904 static int ipr_ioafp_cap_inquiry(struct ipr_cmnd *ipr_cmd)
6906 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6907 struct ipr_inquiry_page0 *page0 = &ioa_cfg->vpd_cbs->page0_data;
6908 struct ipr_inquiry_cap *cap = &ioa_cfg->vpd_cbs->cap;
6911 ipr_cmd->job_step = ipr_ioafp_query_ioa_cfg;
6912 memset(cap, 0, sizeof(*cap));
6914 if (ipr_inquiry_page_supported(page0, 0xD0)) {
6915 ipr_ioafp_inquiry(ipr_cmd, 1, 0xD0,
6916 ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, cap),
6917 sizeof(struct ipr_inquiry_cap));
6918 return IPR_RC_JOB_RETURN;
6922 return IPR_RC_JOB_CONTINUE;
6926 * ipr_ioafp_page3_inquiry - Send a Page 3 Inquiry to the adapter.
6927 * @ipr_cmd: ipr command struct
6929 * This function sends a Page 3 inquiry to the adapter
6930 * to retrieve software VPD information.
6933 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
6935 static int ipr_ioafp_page3_inquiry(struct ipr_cmnd *ipr_cmd)
6937 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6941 ipr_cmd->job_step = ipr_ioafp_cap_inquiry;
6943 ipr_ioafp_inquiry(ipr_cmd, 1, 3,
6944 ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, page3_data),
6945 sizeof(struct ipr_inquiry_page3));
6948 return IPR_RC_JOB_RETURN;
6952 * ipr_ioafp_page0_inquiry - Send a Page 0 Inquiry to the adapter.
6953 * @ipr_cmd: ipr command struct
6955 * This function sends a Page 0 inquiry to the adapter
6956 * to retrieve supported inquiry pages.
6959 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
6961 static int ipr_ioafp_page0_inquiry(struct ipr_cmnd *ipr_cmd)
6963 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6968 /* Grab the type out of the VPD and store it away */
6969 memcpy(type, ioa_cfg->vpd_cbs->ioa_vpd.std_inq_data.vpids.product_id, 4);
6971 ioa_cfg->type = simple_strtoul((char *)type, NULL, 16);
6973 ipr_cmd->job_step = ipr_ioafp_page3_inquiry;
6975 ipr_ioafp_inquiry(ipr_cmd, 1, 0,
6976 ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, page0_data),
6977 sizeof(struct ipr_inquiry_page0));
6980 return IPR_RC_JOB_RETURN;
6984 * ipr_ioafp_std_inquiry - Send a Standard Inquiry to the adapter.
6985 * @ipr_cmd: ipr command struct
6987 * This function sends a standard inquiry to the adapter.
6992 static int ipr_ioafp_std_inquiry(struct ipr_cmnd *ipr_cmd)
6994 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6997 ipr_cmd->job_step = ipr_ioafp_page0_inquiry;
6999 ipr_ioafp_inquiry(ipr_cmd, 0, 0,
7000 ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, ioa_vpd),
7001 sizeof(struct ipr_ioa_vpd));
7004 return IPR_RC_JOB_RETURN;
7008 * ipr_ioafp_identify_hrrq - Send Identify Host RRQ.
7009 * @ipr_cmd: ipr command struct
7011 * This function send an Identify Host Request Response Queue
7012 * command to establish the HRRQ with the adapter.
7017 static int ipr_ioafp_identify_hrrq(struct ipr_cmnd *ipr_cmd)
7019 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7020 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
7023 dev_info(&ioa_cfg->pdev->dev, "Starting IOA initialization sequence.\n");
7025 ioarcb->cmd_pkt.cdb[0] = IPR_ID_HOST_RR_Q;
7026 ioarcb->res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE);
7028 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_IOACMD;
7030 ioarcb->cmd_pkt.cdb[1] = 0x1;
7031 ioarcb->cmd_pkt.cdb[2] =
7032 ((u64) ioa_cfg->host_rrq_dma >> 24) & 0xff;
7033 ioarcb->cmd_pkt.cdb[3] =
7034 ((u64) ioa_cfg->host_rrq_dma >> 16) & 0xff;
7035 ioarcb->cmd_pkt.cdb[4] =
7036 ((u64) ioa_cfg->host_rrq_dma >> 8) & 0xff;
7037 ioarcb->cmd_pkt.cdb[5] =
7038 ((u64) ioa_cfg->host_rrq_dma) & 0xff;
7039 ioarcb->cmd_pkt.cdb[7] =
7040 ((sizeof(u32) * IPR_NUM_CMD_BLKS) >> 8) & 0xff;
7041 ioarcb->cmd_pkt.cdb[8] =
7042 (sizeof(u32) * IPR_NUM_CMD_BLKS) & 0xff;
7044 if (ioa_cfg->sis64) {
7045 ioarcb->cmd_pkt.cdb[10] =
7046 ((u64) ioa_cfg->host_rrq_dma >> 56) & 0xff;
7047 ioarcb->cmd_pkt.cdb[11] =
7048 ((u64) ioa_cfg->host_rrq_dma >> 48) & 0xff;
7049 ioarcb->cmd_pkt.cdb[12] =
7050 ((u64) ioa_cfg->host_rrq_dma >> 40) & 0xff;
7051 ioarcb->cmd_pkt.cdb[13] =
7052 ((u64) ioa_cfg->host_rrq_dma >> 32) & 0xff;
7055 ipr_cmd->job_step = ipr_ioafp_std_inquiry;
7057 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT);
7060 return IPR_RC_JOB_RETURN;
7064 * ipr_reset_timer_done - Adapter reset timer function
7065 * @ipr_cmd: ipr command struct
7067 * Description: This function is used in adapter reset processing
7068 * for timing events. If the reset_cmd pointer in the IOA
7069 * config struct is not this adapter's we are doing nested
7070 * resets and fail_all_ops will take care of freeing the
7076 static void ipr_reset_timer_done(struct ipr_cmnd *ipr_cmd)
7078 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7079 unsigned long lock_flags = 0;
7081 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
7083 if (ioa_cfg->reset_cmd == ipr_cmd) {
7084 list_del(&ipr_cmd->queue);
7085 ipr_cmd->done(ipr_cmd);
7088 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
7092 * ipr_reset_start_timer - Start a timer for adapter reset job
7093 * @ipr_cmd: ipr command struct
7094 * @timeout: timeout value
7096 * Description: This function is used in adapter reset processing
7097 * for timing events. If the reset_cmd pointer in the IOA
7098 * config struct is not this adapter's we are doing nested
7099 * resets and fail_all_ops will take care of freeing the
7105 static void ipr_reset_start_timer(struct ipr_cmnd *ipr_cmd,
7106 unsigned long timeout)
7108 list_add_tail(&ipr_cmd->queue, &ipr_cmd->ioa_cfg->pending_q);
7109 ipr_cmd->done = ipr_reset_ioa_job;
7111 ipr_cmd->timer.data = (unsigned long) ipr_cmd;
7112 ipr_cmd->timer.expires = jiffies + timeout;
7113 ipr_cmd->timer.function = (void (*)(unsigned long))ipr_reset_timer_done;
7114 add_timer(&ipr_cmd->timer);
7118 * ipr_init_ioa_mem - Initialize ioa_cfg control block
7119 * @ioa_cfg: ioa cfg struct
7124 static void ipr_init_ioa_mem(struct ipr_ioa_cfg *ioa_cfg)
7126 memset(ioa_cfg->host_rrq, 0, sizeof(u32) * IPR_NUM_CMD_BLKS);
7128 /* Initialize Host RRQ pointers */
7129 ioa_cfg->hrrq_start = ioa_cfg->host_rrq;
7130 ioa_cfg->hrrq_end = &ioa_cfg->host_rrq[IPR_NUM_CMD_BLKS - 1];
7131 ioa_cfg->hrrq_curr = ioa_cfg->hrrq_start;
7132 ioa_cfg->toggle_bit = 1;
7134 /* Zero out config table */
7135 memset(ioa_cfg->u.cfg_table, 0, ioa_cfg->cfg_table_size);
7139 * ipr_reset_next_stage - Process IPL stage change based on feedback register.
7140 * @ipr_cmd: ipr command struct
7143 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
7145 static int ipr_reset_next_stage(struct ipr_cmnd *ipr_cmd)
7147 unsigned long stage, stage_time;
7149 volatile u32 int_reg;
7150 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7153 feedback = readl(ioa_cfg->regs.init_feedback_reg);
7154 stage = feedback & IPR_IPL_INIT_STAGE_MASK;
7155 stage_time = feedback & IPR_IPL_INIT_STAGE_TIME_MASK;
7157 ipr_dbg("IPL stage = 0x%lx, IPL stage time = %ld\n", stage, stage_time);
7159 /* sanity check the stage_time value */
7160 if (stage_time == 0)
7161 stage_time = IPR_IPL_INIT_DEFAULT_STAGE_TIME;
7162 else if (stage_time < IPR_IPL_INIT_MIN_STAGE_TIME)
7163 stage_time = IPR_IPL_INIT_MIN_STAGE_TIME;
7164 else if (stage_time > IPR_LONG_OPERATIONAL_TIMEOUT)
7165 stage_time = IPR_LONG_OPERATIONAL_TIMEOUT;
7167 if (stage == IPR_IPL_INIT_STAGE_UNKNOWN) {
7168 writel(IPR_PCII_IPL_STAGE_CHANGE, ioa_cfg->regs.set_interrupt_mask_reg);
7169 int_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg);
7170 stage_time = ioa_cfg->transop_timeout;
7171 ipr_cmd->job_step = ipr_ioafp_identify_hrrq;
7172 } else if (stage == IPR_IPL_INIT_STAGE_TRANSOP) {
7173 ipr_cmd->job_step = ipr_ioafp_identify_hrrq;
7174 maskval = IPR_PCII_IPL_STAGE_CHANGE;
7175 maskval = (maskval << 32) | IPR_PCII_IOA_TRANS_TO_OPER;
7176 writeq(maskval, ioa_cfg->regs.set_interrupt_mask_reg);
7177 int_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg);
7178 return IPR_RC_JOB_CONTINUE;
7181 ipr_cmd->timer.data = (unsigned long) ipr_cmd;
7182 ipr_cmd->timer.expires = jiffies + stage_time * HZ;
7183 ipr_cmd->timer.function = (void (*)(unsigned long))ipr_oper_timeout;
7184 ipr_cmd->done = ipr_reset_ioa_job;
7185 add_timer(&ipr_cmd->timer);
7186 list_add_tail(&ipr_cmd->queue, &ioa_cfg->pending_q);
7188 return IPR_RC_JOB_RETURN;
7192 * ipr_reset_enable_ioa - Enable the IOA following a reset.
7193 * @ipr_cmd: ipr command struct
7195 * This function reinitializes some control blocks and
7196 * enables destructive diagnostics on the adapter.
7201 static int ipr_reset_enable_ioa(struct ipr_cmnd *ipr_cmd)
7203 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7204 volatile u32 int_reg;
7205 volatile u64 maskval;
7208 ipr_cmd->job_step = ipr_ioafp_identify_hrrq;
7209 ipr_init_ioa_mem(ioa_cfg);
7211 ioa_cfg->allow_interrupts = 1;
7212 if (ioa_cfg->sis64) {
7213 /* Set the adapter to the correct endian mode. */
7214 writel(IPR_ENDIAN_SWAP_KEY, ioa_cfg->regs.endian_swap_reg);
7215 int_reg = readl(ioa_cfg->regs.endian_swap_reg);
7218 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg32);
7220 if (int_reg & IPR_PCII_IOA_TRANS_TO_OPER) {
7221 writel((IPR_PCII_ERROR_INTERRUPTS | IPR_PCII_HRRQ_UPDATED),
7222 ioa_cfg->regs.clr_interrupt_mask_reg32);
7223 int_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg);
7224 return IPR_RC_JOB_CONTINUE;
7227 /* Enable destructive diagnostics on IOA */
7228 writel(ioa_cfg->doorbell, ioa_cfg->regs.set_uproc_interrupt_reg32);
7230 if (ioa_cfg->sis64) {
7231 maskval = IPR_PCII_IPL_STAGE_CHANGE;
7232 maskval = (maskval << 32) | IPR_PCII_OPER_INTERRUPTS;
7233 writeq(maskval, ioa_cfg->regs.clr_interrupt_mask_reg);
7235 writel(IPR_PCII_OPER_INTERRUPTS, ioa_cfg->regs.clr_interrupt_mask_reg32);
7237 int_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg);
7239 dev_info(&ioa_cfg->pdev->dev, "Initializing IOA.\n");
7241 if (ioa_cfg->sis64) {
7242 ipr_cmd->job_step = ipr_reset_next_stage;
7243 return IPR_RC_JOB_CONTINUE;
7246 ipr_cmd->timer.data = (unsigned long) ipr_cmd;
7247 ipr_cmd->timer.expires = jiffies + (ioa_cfg->transop_timeout * HZ);
7248 ipr_cmd->timer.function = (void (*)(unsigned long))ipr_oper_timeout;
7249 ipr_cmd->done = ipr_reset_ioa_job;
7250 add_timer(&ipr_cmd->timer);
7251 list_add_tail(&ipr_cmd->queue, &ioa_cfg->pending_q);
7254 return IPR_RC_JOB_RETURN;
7258 * ipr_reset_wait_for_dump - Wait for a dump to timeout.
7259 * @ipr_cmd: ipr command struct
7261 * This function is invoked when an adapter dump has run out
7262 * of processing time.
7265 * IPR_RC_JOB_CONTINUE
7267 static int ipr_reset_wait_for_dump(struct ipr_cmnd *ipr_cmd)
7269 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7271 if (ioa_cfg->sdt_state == GET_DUMP)
7272 ioa_cfg->sdt_state = ABORT_DUMP;
7274 ipr_cmd->job_step = ipr_reset_alert;
7276 return IPR_RC_JOB_CONTINUE;
7280 * ipr_unit_check_no_data - Log a unit check/no data error log
7281 * @ioa_cfg: ioa config struct
7283 * Logs an error indicating the adapter unit checked, but for some
7284 * reason, we were unable to fetch the unit check buffer.
7289 static void ipr_unit_check_no_data(struct ipr_ioa_cfg *ioa_cfg)
7291 ioa_cfg->errors_logged++;
7292 dev_err(&ioa_cfg->pdev->dev, "IOA unit check with no data\n");
7296 * ipr_get_unit_check_buffer - Get the unit check buffer from the IOA
7297 * @ioa_cfg: ioa config struct
7299 * Fetches the unit check buffer from the adapter by clocking the data
7300 * through the mailbox register.
7305 static void ipr_get_unit_check_buffer(struct ipr_ioa_cfg *ioa_cfg)
7307 unsigned long mailbox;
7308 struct ipr_hostrcb *hostrcb;
7309 struct ipr_uc_sdt sdt;
7313 mailbox = readl(ioa_cfg->ioa_mailbox);
7315 if (!ioa_cfg->sis64 && !ipr_sdt_is_fmt2(mailbox)) {
7316 ipr_unit_check_no_data(ioa_cfg);
7320 memset(&sdt, 0, sizeof(struct ipr_uc_sdt));
7321 rc = ipr_get_ldump_data_section(ioa_cfg, mailbox, (__be32 *) &sdt,
7322 (sizeof(struct ipr_uc_sdt)) / sizeof(__be32));
7324 if (rc || !(sdt.entry[0].flags & IPR_SDT_VALID_ENTRY) ||
7325 ((be32_to_cpu(sdt.hdr.state) != IPR_FMT3_SDT_READY_TO_USE) &&
7326 (be32_to_cpu(sdt.hdr.state) != IPR_FMT2_SDT_READY_TO_USE))) {
7327 ipr_unit_check_no_data(ioa_cfg);
7331 /* Find length of the first sdt entry (UC buffer) */
7332 if (be32_to_cpu(sdt.hdr.state) == IPR_FMT3_SDT_READY_TO_USE)
7333 length = be32_to_cpu(sdt.entry[0].end_token);
7335 length = (be32_to_cpu(sdt.entry[0].end_token) -
7336 be32_to_cpu(sdt.entry[0].start_token)) &
7337 IPR_FMT2_MBX_ADDR_MASK;
7339 hostrcb = list_entry(ioa_cfg->hostrcb_free_q.next,
7340 struct ipr_hostrcb, queue);
7341 list_del(&hostrcb->queue);
7342 memset(&hostrcb->hcam, 0, sizeof(hostrcb->hcam));
7344 rc = ipr_get_ldump_data_section(ioa_cfg,
7345 be32_to_cpu(sdt.entry[0].start_token),
7346 (__be32 *)&hostrcb->hcam,
7347 min(length, (int)sizeof(hostrcb->hcam)) / sizeof(__be32));
7350 ipr_handle_log_data(ioa_cfg, hostrcb);
7351 ioasc = be32_to_cpu(hostrcb->hcam.u.error.fd_ioasc);
7352 if (ioasc == IPR_IOASC_NR_IOA_RESET_REQUIRED &&
7353 ioa_cfg->sdt_state == GET_DUMP)
7354 ioa_cfg->sdt_state = WAIT_FOR_DUMP;
7356 ipr_unit_check_no_data(ioa_cfg);
7358 list_add_tail(&hostrcb->queue, &ioa_cfg->hostrcb_free_q);
7362 * ipr_reset_restore_cfg_space - Restore PCI config space.
7363 * @ipr_cmd: ipr command struct
7365 * Description: This function restores the saved PCI config space of
7366 * the adapter, fails all outstanding ops back to the callers, and
7367 * fetches the dump/unit check if applicable to this reset.
7370 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
7372 static int ipr_reset_restore_cfg_space(struct ipr_cmnd *ipr_cmd)
7374 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7375 volatile u32 int_reg;
7379 ioa_cfg->pdev->state_saved = true;
7380 rc = pci_restore_state(ioa_cfg->pdev);
7382 if (rc != PCIBIOS_SUCCESSFUL) {
7383 ipr_cmd->s.ioasa.hdr.ioasc = cpu_to_be32(IPR_IOASC_PCI_ACCESS_ERROR);
7384 return IPR_RC_JOB_CONTINUE;
7387 if (ipr_set_pcix_cmd_reg(ioa_cfg)) {
7388 ipr_cmd->s.ioasa.hdr.ioasc = cpu_to_be32(IPR_IOASC_PCI_ACCESS_ERROR);
7389 return IPR_RC_JOB_CONTINUE;
7392 ipr_fail_all_ops(ioa_cfg);
7394 if (ioa_cfg->sis64) {
7395 /* Set the adapter to the correct endian mode. */
7396 writel(IPR_ENDIAN_SWAP_KEY, ioa_cfg->regs.endian_swap_reg);
7397 int_reg = readl(ioa_cfg->regs.endian_swap_reg);
7400 if (ioa_cfg->ioa_unit_checked) {
7401 ioa_cfg->ioa_unit_checked = 0;
7402 ipr_get_unit_check_buffer(ioa_cfg);
7403 ipr_cmd->job_step = ipr_reset_alert;
7404 ipr_reset_start_timer(ipr_cmd, 0);
7405 return IPR_RC_JOB_RETURN;
7408 if (ioa_cfg->in_ioa_bringdown) {
7409 ipr_cmd->job_step = ipr_ioa_bringdown_done;
7411 ipr_cmd->job_step = ipr_reset_enable_ioa;
7413 if (GET_DUMP == ioa_cfg->sdt_state) {
7414 ipr_reset_start_timer(ipr_cmd, IPR_DUMP_TIMEOUT);
7415 ipr_cmd->job_step = ipr_reset_wait_for_dump;
7416 schedule_work(&ioa_cfg->work_q);
7417 return IPR_RC_JOB_RETURN;
7422 return IPR_RC_JOB_CONTINUE;
7426 * ipr_reset_bist_done - BIST has completed on the adapter.
7427 * @ipr_cmd: ipr command struct
7429 * Description: Unblock config space and resume the reset process.
7432 * IPR_RC_JOB_CONTINUE
7434 static int ipr_reset_bist_done(struct ipr_cmnd *ipr_cmd)
7437 pci_unblock_user_cfg_access(ipr_cmd->ioa_cfg->pdev);
7438 ipr_cmd->job_step = ipr_reset_restore_cfg_space;
7440 return IPR_RC_JOB_CONTINUE;
7444 * ipr_reset_start_bist - Run BIST on the adapter.
7445 * @ipr_cmd: ipr command struct
7447 * Description: This function runs BIST on the adapter, then delays 2 seconds.
7450 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
7452 static int ipr_reset_start_bist(struct ipr_cmnd *ipr_cmd)
7454 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7458 pci_block_user_cfg_access(ioa_cfg->pdev);
7459 rc = pci_write_config_byte(ioa_cfg->pdev, PCI_BIST, PCI_BIST_START);
7461 if (rc != PCIBIOS_SUCCESSFUL) {
7462 pci_unblock_user_cfg_access(ipr_cmd->ioa_cfg->pdev);
7463 ipr_cmd->s.ioasa.hdr.ioasc = cpu_to_be32(IPR_IOASC_PCI_ACCESS_ERROR);
7464 rc = IPR_RC_JOB_CONTINUE;
7466 ipr_cmd->job_step = ipr_reset_bist_done;
7467 ipr_reset_start_timer(ipr_cmd, IPR_WAIT_FOR_BIST_TIMEOUT);
7468 rc = IPR_RC_JOB_RETURN;
7476 * ipr_reset_slot_reset_done - Clear PCI reset to the adapter
7477 * @ipr_cmd: ipr command struct
7479 * Description: This clears PCI reset to the adapter and delays two seconds.
7484 static int ipr_reset_slot_reset_done(struct ipr_cmnd *ipr_cmd)
7487 pci_set_pcie_reset_state(ipr_cmd->ioa_cfg->pdev, pcie_deassert_reset);
7488 ipr_cmd->job_step = ipr_reset_bist_done;
7489 ipr_reset_start_timer(ipr_cmd, IPR_WAIT_FOR_BIST_TIMEOUT);
7491 return IPR_RC_JOB_RETURN;
7495 * ipr_reset_slot_reset - Reset the PCI slot of the adapter.
7496 * @ipr_cmd: ipr command struct
7498 * Description: This asserts PCI reset to the adapter.
7503 static int ipr_reset_slot_reset(struct ipr_cmnd *ipr_cmd)
7505 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7506 struct pci_dev *pdev = ioa_cfg->pdev;
7509 pci_block_user_cfg_access(pdev);
7510 pci_set_pcie_reset_state(pdev, pcie_warm_reset);
7511 ipr_cmd->job_step = ipr_reset_slot_reset_done;
7512 ipr_reset_start_timer(ipr_cmd, IPR_PCI_RESET_TIMEOUT);
7514 return IPR_RC_JOB_RETURN;
7518 * ipr_reset_allowed - Query whether or not IOA can be reset
7519 * @ioa_cfg: ioa config struct
7522 * 0 if reset not allowed / non-zero if reset is allowed
7524 static int ipr_reset_allowed(struct ipr_ioa_cfg *ioa_cfg)
7526 volatile u32 temp_reg;
7528 temp_reg = readl(ioa_cfg->regs.sense_interrupt_reg);
7529 return ((temp_reg & IPR_PCII_CRITICAL_OPERATION) == 0);
7533 * ipr_reset_wait_to_start_bist - Wait for permission to reset IOA.
7534 * @ipr_cmd: ipr command struct
7536 * Description: This function waits for adapter permission to run BIST,
7537 * then runs BIST. If the adapter does not give permission after a
7538 * reasonable time, we will reset the adapter anyway. The impact of
7539 * resetting the adapter without warning the adapter is the risk of
7540 * losing the persistent error log on the adapter. If the adapter is
7541 * reset while it is writing to the flash on the adapter, the flash
7542 * segment will have bad ECC and be zeroed.
7545 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
7547 static int ipr_reset_wait_to_start_bist(struct ipr_cmnd *ipr_cmd)
7549 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7550 int rc = IPR_RC_JOB_RETURN;
7552 if (!ipr_reset_allowed(ioa_cfg) && ipr_cmd->u.time_left) {
7553 ipr_cmd->u.time_left -= IPR_CHECK_FOR_RESET_TIMEOUT;
7554 ipr_reset_start_timer(ipr_cmd, IPR_CHECK_FOR_RESET_TIMEOUT);
7556 ipr_cmd->job_step = ioa_cfg->reset;
7557 rc = IPR_RC_JOB_CONTINUE;
7564 * ipr_reset_alert - Alert the adapter of a pending reset
7565 * @ipr_cmd: ipr command struct
7567 * Description: This function alerts the adapter that it will be reset.
7568 * If memory space is not currently enabled, proceed directly
7569 * to running BIST on the adapter. The timer must always be started
7570 * so we guarantee we do not run BIST from ipr_isr.
7575 static int ipr_reset_alert(struct ipr_cmnd *ipr_cmd)
7577 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7582 rc = pci_read_config_word(ioa_cfg->pdev, PCI_COMMAND, &cmd_reg);
7584 if ((rc == PCIBIOS_SUCCESSFUL) && (cmd_reg & PCI_COMMAND_MEMORY)) {
7585 ipr_mask_and_clear_interrupts(ioa_cfg, ~0);
7586 writel(IPR_UPROCI_RESET_ALERT, ioa_cfg->regs.set_uproc_interrupt_reg32);
7587 ipr_cmd->job_step = ipr_reset_wait_to_start_bist;
7589 ipr_cmd->job_step = ioa_cfg->reset;
7592 ipr_cmd->u.time_left = IPR_WAIT_FOR_RESET_TIMEOUT;
7593 ipr_reset_start_timer(ipr_cmd, IPR_CHECK_FOR_RESET_TIMEOUT);
7596 return IPR_RC_JOB_RETURN;
7600 * ipr_reset_ucode_download_done - Microcode download completion
7601 * @ipr_cmd: ipr command struct
7603 * Description: This function unmaps the microcode download buffer.
7606 * IPR_RC_JOB_CONTINUE
7608 static int ipr_reset_ucode_download_done(struct ipr_cmnd *ipr_cmd)
7610 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7611 struct ipr_sglist *sglist = ioa_cfg->ucode_sglist;
7613 pci_unmap_sg(ioa_cfg->pdev, sglist->scatterlist,
7614 sglist->num_sg, DMA_TO_DEVICE);
7616 ipr_cmd->job_step = ipr_reset_alert;
7617 return IPR_RC_JOB_CONTINUE;
7621 * ipr_reset_ucode_download - Download microcode to the adapter
7622 * @ipr_cmd: ipr command struct
7624 * Description: This function checks to see if it there is microcode
7625 * to download to the adapter. If there is, a download is performed.
7628 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
7630 static int ipr_reset_ucode_download(struct ipr_cmnd *ipr_cmd)
7632 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7633 struct ipr_sglist *sglist = ioa_cfg->ucode_sglist;
7636 ipr_cmd->job_step = ipr_reset_alert;
7639 return IPR_RC_JOB_CONTINUE;
7641 ipr_cmd->ioarcb.res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE);
7642 ipr_cmd->ioarcb.cmd_pkt.request_type = IPR_RQTYPE_SCSICDB;
7643 ipr_cmd->ioarcb.cmd_pkt.cdb[0] = WRITE_BUFFER;
7644 ipr_cmd->ioarcb.cmd_pkt.cdb[1] = IPR_WR_BUF_DOWNLOAD_AND_SAVE;
7645 ipr_cmd->ioarcb.cmd_pkt.cdb[6] = (sglist->buffer_len & 0xff0000) >> 16;
7646 ipr_cmd->ioarcb.cmd_pkt.cdb[7] = (sglist->buffer_len & 0x00ff00) >> 8;
7647 ipr_cmd->ioarcb.cmd_pkt.cdb[8] = sglist->buffer_len & 0x0000ff;
7650 ipr_build_ucode_ioadl64(ipr_cmd, sglist);
7652 ipr_build_ucode_ioadl(ipr_cmd, sglist);
7653 ipr_cmd->job_step = ipr_reset_ucode_download_done;
7655 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout,
7656 IPR_WRITE_BUFFER_TIMEOUT);
7659 return IPR_RC_JOB_RETURN;
7663 * ipr_reset_shutdown_ioa - Shutdown the adapter
7664 * @ipr_cmd: ipr command struct
7666 * Description: This function issues an adapter shutdown of the
7667 * specified type to the specified adapter as part of the
7668 * adapter reset job.
7671 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
7673 static int ipr_reset_shutdown_ioa(struct ipr_cmnd *ipr_cmd)
7675 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7676 enum ipr_shutdown_type shutdown_type = ipr_cmd->u.shutdown_type;
7677 unsigned long timeout;
7678 int rc = IPR_RC_JOB_CONTINUE;
7681 if (shutdown_type != IPR_SHUTDOWN_NONE && !ioa_cfg->ioa_is_dead) {
7682 ipr_cmd->ioarcb.res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE);
7683 ipr_cmd->ioarcb.cmd_pkt.request_type = IPR_RQTYPE_IOACMD;
7684 ipr_cmd->ioarcb.cmd_pkt.cdb[0] = IPR_IOA_SHUTDOWN;
7685 ipr_cmd->ioarcb.cmd_pkt.cdb[1] = shutdown_type;
7687 if (shutdown_type == IPR_SHUTDOWN_NORMAL)
7688 timeout = IPR_SHUTDOWN_TIMEOUT;
7689 else if (shutdown_type == IPR_SHUTDOWN_PREPARE_FOR_NORMAL)
7690 timeout = IPR_INTERNAL_TIMEOUT;
7691 else if (ioa_cfg->dual_raid && ipr_dual_ioa_raid)
7692 timeout = IPR_DUAL_IOA_ABBR_SHUTDOWN_TO;
7694 timeout = IPR_ABBREV_SHUTDOWN_TIMEOUT;
7696 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, timeout);
7698 rc = IPR_RC_JOB_RETURN;
7699 ipr_cmd->job_step = ipr_reset_ucode_download;
7701 ipr_cmd->job_step = ipr_reset_alert;
7708 * ipr_reset_ioa_job - Adapter reset job
7709 * @ipr_cmd: ipr command struct
7711 * Description: This function is the job router for the adapter reset job.
7716 static void ipr_reset_ioa_job(struct ipr_cmnd *ipr_cmd)
7719 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7722 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
7724 if (ioa_cfg->reset_cmd != ipr_cmd) {
7726 * We are doing nested adapter resets and this is
7727 * not the current reset job.
7729 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
7733 if (IPR_IOASC_SENSE_KEY(ioasc)) {
7734 rc = ipr_cmd->job_step_failed(ipr_cmd);
7735 if (rc == IPR_RC_JOB_RETURN)
7739 ipr_reinit_ipr_cmnd(ipr_cmd);
7740 ipr_cmd->job_step_failed = ipr_reset_cmd_failed;
7741 rc = ipr_cmd->job_step(ipr_cmd);
7742 } while(rc == IPR_RC_JOB_CONTINUE);
7746 * _ipr_initiate_ioa_reset - Initiate an adapter reset
7747 * @ioa_cfg: ioa config struct
7748 * @job_step: first job step of reset job
7749 * @shutdown_type: shutdown type
7751 * Description: This function will initiate the reset of the given adapter
7752 * starting at the selected job step.
7753 * If the caller needs to wait on the completion of the reset,
7754 * the caller must sleep on the reset_wait_q.
7759 static void _ipr_initiate_ioa_reset(struct ipr_ioa_cfg *ioa_cfg,
7760 int (*job_step) (struct ipr_cmnd *),
7761 enum ipr_shutdown_type shutdown_type)
7763 struct ipr_cmnd *ipr_cmd;
7765 ioa_cfg->in_reset_reload = 1;
7766 ioa_cfg->allow_cmds = 0;
7767 scsi_block_requests(ioa_cfg->host);
7769 ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg);
7770 ioa_cfg->reset_cmd = ipr_cmd;
7771 ipr_cmd->job_step = job_step;
7772 ipr_cmd->u.shutdown_type = shutdown_type;
7774 ipr_reset_ioa_job(ipr_cmd);
7778 * ipr_initiate_ioa_reset - Initiate an adapter reset
7779 * @ioa_cfg: ioa config struct
7780 * @shutdown_type: shutdown type
7782 * Description: This function will initiate the reset of the given adapter.
7783 * If the caller needs to wait on the completion of the reset,
7784 * the caller must sleep on the reset_wait_q.
7789 static void ipr_initiate_ioa_reset(struct ipr_ioa_cfg *ioa_cfg,
7790 enum ipr_shutdown_type shutdown_type)
7792 if (ioa_cfg->ioa_is_dead)
7795 if (ioa_cfg->in_reset_reload && ioa_cfg->sdt_state == GET_DUMP)
7796 ioa_cfg->sdt_state = ABORT_DUMP;
7798 if (ioa_cfg->reset_retries++ >= IPR_NUM_RESET_RELOAD_RETRIES) {
7799 dev_err(&ioa_cfg->pdev->dev,
7800 "IOA taken offline - error recovery failed\n");
7802 ioa_cfg->reset_retries = 0;
7803 ioa_cfg->ioa_is_dead = 1;
7805 if (ioa_cfg->in_ioa_bringdown) {
7806 ioa_cfg->reset_cmd = NULL;
7807 ioa_cfg->in_reset_reload = 0;
7808 ipr_fail_all_ops(ioa_cfg);
7809 wake_up_all(&ioa_cfg->reset_wait_q);
7811 spin_unlock_irq(ioa_cfg->host->host_lock);
7812 scsi_unblock_requests(ioa_cfg->host);
7813 spin_lock_irq(ioa_cfg->host->host_lock);
7816 ioa_cfg->in_ioa_bringdown = 1;
7817 shutdown_type = IPR_SHUTDOWN_NONE;
7821 _ipr_initiate_ioa_reset(ioa_cfg, ipr_reset_shutdown_ioa,
7826 * ipr_reset_freeze - Hold off all I/O activity
7827 * @ipr_cmd: ipr command struct
7829 * Description: If the PCI slot is frozen, hold off all I/O
7830 * activity; then, as soon as the slot is available again,
7831 * initiate an adapter reset.
7833 static int ipr_reset_freeze(struct ipr_cmnd *ipr_cmd)
7835 /* Disallow new interrupts, avoid loop */
7836 ipr_cmd->ioa_cfg->allow_interrupts = 0;
7837 list_add_tail(&ipr_cmd->queue, &ipr_cmd->ioa_cfg->pending_q);
7838 ipr_cmd->done = ipr_reset_ioa_job;
7839 return IPR_RC_JOB_RETURN;
7843 * ipr_pci_frozen - Called when slot has experienced a PCI bus error.
7844 * @pdev: PCI device struct
7846 * Description: This routine is called to tell us that the PCI bus
7847 * is down. Can't do anything here, except put the device driver
7848 * into a holding pattern, waiting for the PCI bus to come back.
7850 static void ipr_pci_frozen(struct pci_dev *pdev)
7852 unsigned long flags = 0;
7853 struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev);
7855 spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
7856 _ipr_initiate_ioa_reset(ioa_cfg, ipr_reset_freeze, IPR_SHUTDOWN_NONE);
7857 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
7861 * ipr_pci_slot_reset - Called when PCI slot has been reset.
7862 * @pdev: PCI device struct
7864 * Description: This routine is called by the pci error recovery
7865 * code after the PCI slot has been reset, just before we
7866 * should resume normal operations.
7868 static pci_ers_result_t ipr_pci_slot_reset(struct pci_dev *pdev)
7870 unsigned long flags = 0;
7871 struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev);
7873 spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
7874 if (ioa_cfg->needs_warm_reset)
7875 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
7877 _ipr_initiate_ioa_reset(ioa_cfg, ipr_reset_restore_cfg_space,
7879 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
7880 return PCI_ERS_RESULT_RECOVERED;
7884 * ipr_pci_perm_failure - Called when PCI slot is dead for good.
7885 * @pdev: PCI device struct
7887 * Description: This routine is called when the PCI bus has
7888 * permanently failed.
7890 static void ipr_pci_perm_failure(struct pci_dev *pdev)
7892 unsigned long flags = 0;
7893 struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev);
7895 spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
7896 if (ioa_cfg->sdt_state == WAIT_FOR_DUMP)
7897 ioa_cfg->sdt_state = ABORT_DUMP;
7898 ioa_cfg->reset_retries = IPR_NUM_RESET_RELOAD_RETRIES;
7899 ioa_cfg->in_ioa_bringdown = 1;
7900 ioa_cfg->allow_cmds = 0;
7901 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
7902 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
7906 * ipr_pci_error_detected - Called when a PCI error is detected.
7907 * @pdev: PCI device struct
7908 * @state: PCI channel state
7910 * Description: Called when a PCI error is detected.
7913 * PCI_ERS_RESULT_NEED_RESET or PCI_ERS_RESULT_DISCONNECT
7915 static pci_ers_result_t ipr_pci_error_detected(struct pci_dev *pdev,
7916 pci_channel_state_t state)
7919 case pci_channel_io_frozen:
7920 ipr_pci_frozen(pdev);
7921 return PCI_ERS_RESULT_NEED_RESET;
7922 case pci_channel_io_perm_failure:
7923 ipr_pci_perm_failure(pdev);
7924 return PCI_ERS_RESULT_DISCONNECT;
7929 return PCI_ERS_RESULT_NEED_RESET;
7933 * ipr_probe_ioa_part2 - Initializes IOAs found in ipr_probe_ioa(..)
7934 * @ioa_cfg: ioa cfg struct
7936 * Description: This is the second phase of adapter intialization
7937 * This function takes care of initilizing the adapter to the point
7938 * where it can accept new commands.
7941 * 0 on success / -EIO on failure
7943 static int __devinit ipr_probe_ioa_part2(struct ipr_ioa_cfg *ioa_cfg)
7946 unsigned long host_lock_flags = 0;
7949 spin_lock_irqsave(ioa_cfg->host->host_lock, host_lock_flags);
7950 dev_dbg(&ioa_cfg->pdev->dev, "ioa_cfg adx: 0x%p\n", ioa_cfg);
7951 if (ioa_cfg->needs_hard_reset) {
7952 ioa_cfg->needs_hard_reset = 0;
7953 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
7955 _ipr_initiate_ioa_reset(ioa_cfg, ipr_reset_enable_ioa,
7958 spin_unlock_irqrestore(ioa_cfg->host->host_lock, host_lock_flags);
7959 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
7960 spin_lock_irqsave(ioa_cfg->host->host_lock, host_lock_flags);
7962 if (ioa_cfg->ioa_is_dead) {
7964 } else if (ipr_invalid_adapter(ioa_cfg)) {
7968 dev_err(&ioa_cfg->pdev->dev,
7969 "Adapter not supported in this hardware configuration.\n");
7972 spin_unlock_irqrestore(ioa_cfg->host->host_lock, host_lock_flags);
7979 * ipr_free_cmd_blks - Frees command blocks allocated for an adapter
7980 * @ioa_cfg: ioa config struct
7985 static void ipr_free_cmd_blks(struct ipr_ioa_cfg *ioa_cfg)
7989 for (i = 0; i < IPR_NUM_CMD_BLKS; i++) {
7990 if (ioa_cfg->ipr_cmnd_list[i])
7991 pci_pool_free(ioa_cfg->ipr_cmd_pool,
7992 ioa_cfg->ipr_cmnd_list[i],
7993 ioa_cfg->ipr_cmnd_list_dma[i]);
7995 ioa_cfg->ipr_cmnd_list[i] = NULL;
7998 if (ioa_cfg->ipr_cmd_pool)
7999 pci_pool_destroy (ioa_cfg->ipr_cmd_pool);
8001 ioa_cfg->ipr_cmd_pool = NULL;
8005 * ipr_free_mem - Frees memory allocated for an adapter
8006 * @ioa_cfg: ioa cfg struct
8011 static void ipr_free_mem(struct ipr_ioa_cfg *ioa_cfg)
8015 kfree(ioa_cfg->res_entries);
8016 pci_free_consistent(ioa_cfg->pdev, sizeof(struct ipr_misc_cbs),
8017 ioa_cfg->vpd_cbs, ioa_cfg->vpd_cbs_dma);
8018 ipr_free_cmd_blks(ioa_cfg);
8019 pci_free_consistent(ioa_cfg->pdev, sizeof(u32) * IPR_NUM_CMD_BLKS,
8020 ioa_cfg->host_rrq, ioa_cfg->host_rrq_dma);
8021 pci_free_consistent(ioa_cfg->pdev, ioa_cfg->cfg_table_size,
8022 ioa_cfg->u.cfg_table,
8023 ioa_cfg->cfg_table_dma);
8025 for (i = 0; i < IPR_NUM_HCAMS; i++) {
8026 pci_free_consistent(ioa_cfg->pdev,
8027 sizeof(struct ipr_hostrcb),
8028 ioa_cfg->hostrcb[i],
8029 ioa_cfg->hostrcb_dma[i]);
8032 ipr_free_dump(ioa_cfg);
8033 kfree(ioa_cfg->trace);
8037 * ipr_free_all_resources - Free all allocated resources for an adapter.
8038 * @ipr_cmd: ipr command struct
8040 * This function frees all allocated resources for the
8041 * specified adapter.
8046 static void ipr_free_all_resources(struct ipr_ioa_cfg *ioa_cfg)
8048 struct pci_dev *pdev = ioa_cfg->pdev;
8051 free_irq(pdev->irq, ioa_cfg);
8052 pci_disable_msi(pdev);
8053 iounmap(ioa_cfg->hdw_dma_regs);
8054 pci_release_regions(pdev);
8055 ipr_free_mem(ioa_cfg);
8056 scsi_host_put(ioa_cfg->host);
8057 pci_disable_device(pdev);
8062 * ipr_alloc_cmd_blks - Allocate command blocks for an adapter
8063 * @ioa_cfg: ioa config struct
8066 * 0 on success / -ENOMEM on allocation failure
8068 static int __devinit ipr_alloc_cmd_blks(struct ipr_ioa_cfg *ioa_cfg)
8070 struct ipr_cmnd *ipr_cmd;
8071 struct ipr_ioarcb *ioarcb;
8072 dma_addr_t dma_addr;
8075 ioa_cfg->ipr_cmd_pool = pci_pool_create (IPR_NAME, ioa_cfg->pdev,
8076 sizeof(struct ipr_cmnd), 16, 0);
8078 if (!ioa_cfg->ipr_cmd_pool)
8081 for (i = 0; i < IPR_NUM_CMD_BLKS; i++) {
8082 ipr_cmd = pci_pool_alloc (ioa_cfg->ipr_cmd_pool, GFP_KERNEL, &dma_addr);
8085 ipr_free_cmd_blks(ioa_cfg);
8089 memset(ipr_cmd, 0, sizeof(*ipr_cmd));
8090 ioa_cfg->ipr_cmnd_list[i] = ipr_cmd;
8091 ioa_cfg->ipr_cmnd_list_dma[i] = dma_addr;
8093 ioarcb = &ipr_cmd->ioarcb;
8094 ipr_cmd->dma_addr = dma_addr;
8096 ioarcb->a.ioarcb_host_pci_addr64 = cpu_to_be64(dma_addr);
8098 ioarcb->a.ioarcb_host_pci_addr = cpu_to_be32(dma_addr);
8100 ioarcb->host_response_handle = cpu_to_be32(i << 2);
8101 if (ioa_cfg->sis64) {
8102 ioarcb->u.sis64_addr_data.data_ioadl_addr =
8103 cpu_to_be64(dma_addr + offsetof(struct ipr_cmnd, i.ioadl64));
8104 ioarcb->u.sis64_addr_data.ioasa_host_pci_addr =
8105 cpu_to_be64(dma_addr + offsetof(struct ipr_cmnd, s.ioasa64));
8107 ioarcb->write_ioadl_addr =
8108 cpu_to_be32(dma_addr + offsetof(struct ipr_cmnd, i.ioadl));
8109 ioarcb->read_ioadl_addr = ioarcb->write_ioadl_addr;
8110 ioarcb->ioasa_host_pci_addr =
8111 cpu_to_be32(dma_addr + offsetof(struct ipr_cmnd, s.ioasa));
8113 ioarcb->ioasa_len = cpu_to_be16(sizeof(struct ipr_ioasa));
8114 ipr_cmd->cmd_index = i;
8115 ipr_cmd->ioa_cfg = ioa_cfg;
8116 ipr_cmd->sense_buffer_dma = dma_addr +
8117 offsetof(struct ipr_cmnd, sense_buffer);
8119 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
8126 * ipr_alloc_mem - Allocate memory for an adapter
8127 * @ioa_cfg: ioa config struct
8130 * 0 on success / non-zero for error
8132 static int __devinit ipr_alloc_mem(struct ipr_ioa_cfg *ioa_cfg)
8134 struct pci_dev *pdev = ioa_cfg->pdev;
8135 int i, rc = -ENOMEM;
8138 ioa_cfg->res_entries = kzalloc(sizeof(struct ipr_resource_entry) *
8139 ioa_cfg->max_devs_supported, GFP_KERNEL);
8141 if (!ioa_cfg->res_entries)
8144 if (ioa_cfg->sis64) {
8145 ioa_cfg->target_ids = kzalloc(sizeof(unsigned long) *
8146 BITS_TO_LONGS(ioa_cfg->max_devs_supported), GFP_KERNEL);
8147 ioa_cfg->array_ids = kzalloc(sizeof(unsigned long) *
8148 BITS_TO_LONGS(ioa_cfg->max_devs_supported), GFP_KERNEL);
8149 ioa_cfg->vset_ids = kzalloc(sizeof(unsigned long) *
8150 BITS_TO_LONGS(ioa_cfg->max_devs_supported), GFP_KERNEL);
8153 for (i = 0; i < ioa_cfg->max_devs_supported; i++) {
8154 list_add_tail(&ioa_cfg->res_entries[i].queue, &ioa_cfg->free_res_q);
8155 ioa_cfg->res_entries[i].ioa_cfg = ioa_cfg;
8158 ioa_cfg->vpd_cbs = pci_alloc_consistent(ioa_cfg->pdev,
8159 sizeof(struct ipr_misc_cbs),
8160 &ioa_cfg->vpd_cbs_dma);
8162 if (!ioa_cfg->vpd_cbs)
8163 goto out_free_res_entries;
8165 if (ipr_alloc_cmd_blks(ioa_cfg))
8166 goto out_free_vpd_cbs;
8168 ioa_cfg->host_rrq = pci_alloc_consistent(ioa_cfg->pdev,
8169 sizeof(u32) * IPR_NUM_CMD_BLKS,
8170 &ioa_cfg->host_rrq_dma);
8172 if (!ioa_cfg->host_rrq)
8173 goto out_ipr_free_cmd_blocks;
8175 ioa_cfg->u.cfg_table = pci_alloc_consistent(ioa_cfg->pdev,
8176 ioa_cfg->cfg_table_size,
8177 &ioa_cfg->cfg_table_dma);
8179 if (!ioa_cfg->u.cfg_table)
8180 goto out_free_host_rrq;
8182 for (i = 0; i < IPR_NUM_HCAMS; i++) {
8183 ioa_cfg->hostrcb[i] = pci_alloc_consistent(ioa_cfg->pdev,
8184 sizeof(struct ipr_hostrcb),
8185 &ioa_cfg->hostrcb_dma[i]);
8187 if (!ioa_cfg->hostrcb[i])
8188 goto out_free_hostrcb_dma;
8190 ioa_cfg->hostrcb[i]->hostrcb_dma =
8191 ioa_cfg->hostrcb_dma[i] + offsetof(struct ipr_hostrcb, hcam);
8192 ioa_cfg->hostrcb[i]->ioa_cfg = ioa_cfg;
8193 list_add_tail(&ioa_cfg->hostrcb[i]->queue, &ioa_cfg->hostrcb_free_q);
8196 ioa_cfg->trace = kzalloc(sizeof(struct ipr_trace_entry) *
8197 IPR_NUM_TRACE_ENTRIES, GFP_KERNEL);
8199 if (!ioa_cfg->trace)
8200 goto out_free_hostrcb_dma;
8207 out_free_hostrcb_dma:
8209 pci_free_consistent(pdev, sizeof(struct ipr_hostrcb),
8210 ioa_cfg->hostrcb[i],
8211 ioa_cfg->hostrcb_dma[i]);
8213 pci_free_consistent(pdev, ioa_cfg->cfg_table_size,
8214 ioa_cfg->u.cfg_table,
8215 ioa_cfg->cfg_table_dma);
8217 pci_free_consistent(pdev, sizeof(u32) * IPR_NUM_CMD_BLKS,
8218 ioa_cfg->host_rrq, ioa_cfg->host_rrq_dma);
8219 out_ipr_free_cmd_blocks:
8220 ipr_free_cmd_blks(ioa_cfg);
8222 pci_free_consistent(pdev, sizeof(struct ipr_misc_cbs),
8223 ioa_cfg->vpd_cbs, ioa_cfg->vpd_cbs_dma);
8224 out_free_res_entries:
8225 kfree(ioa_cfg->res_entries);
8230 * ipr_initialize_bus_attr - Initialize SCSI bus attributes to default values
8231 * @ioa_cfg: ioa config struct
8236 static void __devinit ipr_initialize_bus_attr(struct ipr_ioa_cfg *ioa_cfg)
8240 for (i = 0; i < IPR_MAX_NUM_BUSES; i++) {
8241 ioa_cfg->bus_attr[i].bus = i;
8242 ioa_cfg->bus_attr[i].qas_enabled = 0;
8243 ioa_cfg->bus_attr[i].bus_width = IPR_DEFAULT_BUS_WIDTH;
8244 if (ipr_max_speed < ARRAY_SIZE(ipr_max_bus_speeds))
8245 ioa_cfg->bus_attr[i].max_xfer_rate = ipr_max_bus_speeds[ipr_max_speed];
8247 ioa_cfg->bus_attr[i].max_xfer_rate = IPR_U160_SCSI_RATE;
8252 * ipr_init_ioa_cfg - Initialize IOA config struct
8253 * @ioa_cfg: ioa config struct
8254 * @host: scsi host struct
8255 * @pdev: PCI dev struct
8260 static void __devinit ipr_init_ioa_cfg(struct ipr_ioa_cfg *ioa_cfg,
8261 struct Scsi_Host *host, struct pci_dev *pdev)
8263 const struct ipr_interrupt_offsets *p;
8264 struct ipr_interrupts *t;
8267 ioa_cfg->host = host;
8268 ioa_cfg->pdev = pdev;
8269 ioa_cfg->log_level = ipr_log_level;
8270 ioa_cfg->doorbell = IPR_DOORBELL;
8271 sprintf(ioa_cfg->eye_catcher, IPR_EYECATCHER);
8272 sprintf(ioa_cfg->trace_start, IPR_TRACE_START_LABEL);
8273 sprintf(ioa_cfg->ipr_free_label, IPR_FREEQ_LABEL);
8274 sprintf(ioa_cfg->ipr_pending_label, IPR_PENDQ_LABEL);
8275 sprintf(ioa_cfg->cfg_table_start, IPR_CFG_TBL_START);
8276 sprintf(ioa_cfg->resource_table_label, IPR_RES_TABLE_LABEL);
8277 sprintf(ioa_cfg->ipr_hcam_label, IPR_HCAM_LABEL);
8278 sprintf(ioa_cfg->ipr_cmd_label, IPR_CMD_LABEL);
8280 INIT_LIST_HEAD(&ioa_cfg->free_q);
8281 INIT_LIST_HEAD(&ioa_cfg->pending_q);
8282 INIT_LIST_HEAD(&ioa_cfg->hostrcb_free_q);
8283 INIT_LIST_HEAD(&ioa_cfg->hostrcb_pending_q);
8284 INIT_LIST_HEAD(&ioa_cfg->free_res_q);
8285 INIT_LIST_HEAD(&ioa_cfg->used_res_q);
8286 INIT_WORK(&ioa_cfg->work_q, ipr_worker_thread);
8287 init_waitqueue_head(&ioa_cfg->reset_wait_q);
8288 init_waitqueue_head(&ioa_cfg->msi_wait_q);
8289 ioa_cfg->sdt_state = INACTIVE;
8291 ipr_initialize_bus_attr(ioa_cfg);
8292 ioa_cfg->max_devs_supported = ipr_max_devs;
8294 if (ioa_cfg->sis64) {
8295 host->max_id = IPR_MAX_SIS64_TARGETS_PER_BUS;
8296 host->max_lun = IPR_MAX_SIS64_LUNS_PER_TARGET;
8297 if (ipr_max_devs > IPR_MAX_SIS64_DEVS)
8298 ioa_cfg->max_devs_supported = IPR_MAX_SIS64_DEVS;
8300 host->max_id = IPR_MAX_NUM_TARGETS_PER_BUS;
8301 host->max_lun = IPR_MAX_NUM_LUNS_PER_TARGET;
8302 if (ipr_max_devs > IPR_MAX_PHYSICAL_DEVS)
8303 ioa_cfg->max_devs_supported = IPR_MAX_PHYSICAL_DEVS;
8305 host->max_channel = IPR_MAX_BUS_TO_SCAN;
8306 host->unique_id = host->host_no;
8307 host->max_cmd_len = IPR_MAX_CDB_LEN;
8308 pci_set_drvdata(pdev, ioa_cfg);
8310 p = &ioa_cfg->chip_cfg->regs;
8312 base = ioa_cfg->hdw_dma_regs;
8314 t->set_interrupt_mask_reg = base + p->set_interrupt_mask_reg;
8315 t->clr_interrupt_mask_reg = base + p->clr_interrupt_mask_reg;
8316 t->clr_interrupt_mask_reg32 = base + p->clr_interrupt_mask_reg32;
8317 t->sense_interrupt_mask_reg = base + p->sense_interrupt_mask_reg;
8318 t->sense_interrupt_mask_reg32 = base + p->sense_interrupt_mask_reg32;
8319 t->clr_interrupt_reg = base + p->clr_interrupt_reg;
8320 t->clr_interrupt_reg32 = base + p->clr_interrupt_reg32;
8321 t->sense_interrupt_reg = base + p->sense_interrupt_reg;
8322 t->sense_interrupt_reg32 = base + p->sense_interrupt_reg32;
8323 t->ioarrin_reg = base + p->ioarrin_reg;
8324 t->sense_uproc_interrupt_reg = base + p->sense_uproc_interrupt_reg;
8325 t->sense_uproc_interrupt_reg32 = base + p->sense_uproc_interrupt_reg32;
8326 t->set_uproc_interrupt_reg = base + p->set_uproc_interrupt_reg;
8327 t->set_uproc_interrupt_reg32 = base + p->set_uproc_interrupt_reg32;
8328 t->clr_uproc_interrupt_reg = base + p->clr_uproc_interrupt_reg;
8329 t->clr_uproc_interrupt_reg32 = base + p->clr_uproc_interrupt_reg32;
8331 if (ioa_cfg->sis64) {
8332 t->init_feedback_reg = base + p->init_feedback_reg;
8333 t->dump_addr_reg = base + p->dump_addr_reg;
8334 t->dump_data_reg = base + p->dump_data_reg;
8335 t->endian_swap_reg = base + p->endian_swap_reg;
8340 * ipr_get_chip_info - Find adapter chip information
8341 * @dev_id: PCI device id struct
8344 * ptr to chip information on success / NULL on failure
8346 static const struct ipr_chip_t * __devinit
8347 ipr_get_chip_info(const struct pci_device_id *dev_id)
8351 for (i = 0; i < ARRAY_SIZE(ipr_chip); i++)
8352 if (ipr_chip[i].vendor == dev_id->vendor &&
8353 ipr_chip[i].device == dev_id->device)
8354 return &ipr_chip[i];
8359 * ipr_test_intr - Handle the interrupt generated in ipr_test_msi().
8360 * @pdev: PCI device struct
8362 * Description: Simply set the msi_received flag to 1 indicating that
8363 * Message Signaled Interrupts are supported.
8366 * 0 on success / non-zero on failure
8368 static irqreturn_t __devinit ipr_test_intr(int irq, void *devp)
8370 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)devp;
8371 unsigned long lock_flags = 0;
8372 irqreturn_t rc = IRQ_HANDLED;
8374 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
8376 ioa_cfg->msi_received = 1;
8377 wake_up(&ioa_cfg->msi_wait_q);
8379 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
8384 * ipr_test_msi - Test for Message Signaled Interrupt (MSI) support.
8385 * @pdev: PCI device struct
8387 * Description: The return value from pci_enable_msi() can not always be
8388 * trusted. This routine sets up and initiates a test interrupt to determine
8389 * if the interrupt is received via the ipr_test_intr() service routine.
8390 * If the tests fails, the driver will fall back to LSI.
8393 * 0 on success / non-zero on failure
8395 static int __devinit ipr_test_msi(struct ipr_ioa_cfg *ioa_cfg,
8396 struct pci_dev *pdev)
8399 volatile u32 int_reg;
8400 unsigned long lock_flags = 0;
8404 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
8405 init_waitqueue_head(&ioa_cfg->msi_wait_q);
8406 ioa_cfg->msi_received = 0;
8407 ipr_mask_and_clear_interrupts(ioa_cfg, ~IPR_PCII_IOA_TRANS_TO_OPER);
8408 writel(IPR_PCII_IO_DEBUG_ACKNOWLEDGE, ioa_cfg->regs.clr_interrupt_mask_reg32);
8409 int_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg);
8410 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
8412 rc = request_irq(pdev->irq, ipr_test_intr, 0, IPR_NAME, ioa_cfg);
8414 dev_err(&pdev->dev, "Can not assign irq %d\n", pdev->irq);
8416 } else if (ipr_debug)
8417 dev_info(&pdev->dev, "IRQ assigned: %d\n", pdev->irq);
8419 writel(IPR_PCII_IO_DEBUG_ACKNOWLEDGE, ioa_cfg->regs.sense_interrupt_reg32);
8420 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg);
8421 wait_event_timeout(ioa_cfg->msi_wait_q, ioa_cfg->msi_received, HZ);
8422 ipr_mask_and_clear_interrupts(ioa_cfg, ~IPR_PCII_IOA_TRANS_TO_OPER);
8424 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
8425 if (!ioa_cfg->msi_received) {
8426 /* MSI test failed */
8427 dev_info(&pdev->dev, "MSI test failed. Falling back to LSI.\n");
8429 } else if (ipr_debug)
8430 dev_info(&pdev->dev, "MSI test succeeded.\n");
8432 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
8434 free_irq(pdev->irq, ioa_cfg);
8442 * ipr_probe_ioa - Allocates memory and does first stage of initialization
8443 * @pdev: PCI device struct
8444 * @dev_id: PCI device id struct
8447 * 0 on success / non-zero on failure
8449 static int __devinit ipr_probe_ioa(struct pci_dev *pdev,
8450 const struct pci_device_id *dev_id)
8452 struct ipr_ioa_cfg *ioa_cfg;
8453 struct Scsi_Host *host;
8454 unsigned long ipr_regs_pci;
8455 void __iomem *ipr_regs;
8456 int rc = PCIBIOS_SUCCESSFUL;
8457 volatile u32 mask, uproc, interrupts;
8461 if ((rc = pci_enable_device(pdev))) {
8462 dev_err(&pdev->dev, "Cannot enable adapter\n");
8466 dev_info(&pdev->dev, "Found IOA with IRQ: %d\n", pdev->irq);
8468 host = scsi_host_alloc(&driver_template, sizeof(*ioa_cfg));
8471 dev_err(&pdev->dev, "call to scsi_host_alloc failed!\n");
8476 ioa_cfg = (struct ipr_ioa_cfg *)host->hostdata;
8477 memset(ioa_cfg, 0, sizeof(struct ipr_ioa_cfg));
8478 ata_host_init(&ioa_cfg->ata_host, &pdev->dev,
8479 sata_port_info.flags, &ipr_sata_ops);
8481 ioa_cfg->ipr_chip = ipr_get_chip_info(dev_id);
8483 if (!ioa_cfg->ipr_chip) {
8484 dev_err(&pdev->dev, "Unknown adapter chipset 0x%04X 0x%04X\n",
8485 dev_id->vendor, dev_id->device);
8486 goto out_scsi_host_put;
8489 /* set SIS 32 or SIS 64 */
8490 ioa_cfg->sis64 = ioa_cfg->ipr_chip->sis_type == IPR_SIS64 ? 1 : 0;
8491 ioa_cfg->chip_cfg = ioa_cfg->ipr_chip->cfg;
8493 if (ipr_transop_timeout)
8494 ioa_cfg->transop_timeout = ipr_transop_timeout;
8495 else if (dev_id->driver_data & IPR_USE_LONG_TRANSOP_TIMEOUT)
8496 ioa_cfg->transop_timeout = IPR_LONG_OPERATIONAL_TIMEOUT;
8498 ioa_cfg->transop_timeout = IPR_OPERATIONAL_TIMEOUT;
8500 ioa_cfg->revid = pdev->revision;
8502 ipr_regs_pci = pci_resource_start(pdev, 0);
8504 rc = pci_request_regions(pdev, IPR_NAME);
8507 "Couldn't register memory range of registers\n");
8508 goto out_scsi_host_put;
8511 ipr_regs = pci_ioremap_bar(pdev, 0);
8515 "Couldn't map memory range of registers\n");
8517 goto out_release_regions;
8520 ioa_cfg->hdw_dma_regs = ipr_regs;
8521 ioa_cfg->hdw_dma_regs_pci = ipr_regs_pci;
8522 ioa_cfg->ioa_mailbox = ioa_cfg->chip_cfg->mailbox + ipr_regs;
8524 ipr_init_ioa_cfg(ioa_cfg, host, pdev);
8526 pci_set_master(pdev);
8528 if (ioa_cfg->sis64) {
8529 rc = pci_set_dma_mask(pdev, DMA_BIT_MASK(64));
8531 dev_dbg(&pdev->dev, "Failed to set 64 bit PCI DMA mask\n");
8532 rc = pci_set_dma_mask(pdev, DMA_BIT_MASK(32));
8536 rc = pci_set_dma_mask(pdev, DMA_BIT_MASK(32));
8539 dev_err(&pdev->dev, "Failed to set PCI DMA mask\n");
8543 rc = pci_write_config_byte(pdev, PCI_CACHE_LINE_SIZE,
8544 ioa_cfg->chip_cfg->cache_line_size);
8546 if (rc != PCIBIOS_SUCCESSFUL) {
8547 dev_err(&pdev->dev, "Write of cache line size failed\n");
8552 /* Enable MSI style interrupts if they are supported. */
8553 if (ioa_cfg->ipr_chip->intr_type == IPR_USE_MSI && !pci_enable_msi(pdev)) {
8554 rc = ipr_test_msi(ioa_cfg, pdev);
8555 if (rc == -EOPNOTSUPP)
8556 pci_disable_msi(pdev);
8558 goto out_msi_disable;
8560 dev_info(&pdev->dev, "MSI enabled with IRQ: %d\n", pdev->irq);
8561 } else if (ipr_debug)
8562 dev_info(&pdev->dev, "Cannot enable MSI.\n");
8564 /* Save away PCI config space for use following IOA reset */
8565 rc = pci_save_state(pdev);
8567 if (rc != PCIBIOS_SUCCESSFUL) {
8568 dev_err(&pdev->dev, "Failed to save PCI config space\n");
8573 if ((rc = ipr_save_pcix_cmd_reg(ioa_cfg)))
8576 if ((rc = ipr_set_pcix_cmd_reg(ioa_cfg)))
8580 ioa_cfg->cfg_table_size = (sizeof(struct ipr_config_table_hdr64)
8581 + ((sizeof(struct ipr_config_table_entry64)
8582 * ioa_cfg->max_devs_supported)));
8584 ioa_cfg->cfg_table_size = (sizeof(struct ipr_config_table_hdr)
8585 + ((sizeof(struct ipr_config_table_entry)
8586 * ioa_cfg->max_devs_supported)));
8588 rc = ipr_alloc_mem(ioa_cfg);
8591 "Couldn't allocate enough memory for device driver!\n");
8596 * If HRRQ updated interrupt is not masked, or reset alert is set,
8597 * the card is in an unknown state and needs a hard reset
8599 mask = readl(ioa_cfg->regs.sense_interrupt_mask_reg32);
8600 interrupts = readl(ioa_cfg->regs.sense_interrupt_reg32);
8601 uproc = readl(ioa_cfg->regs.sense_uproc_interrupt_reg32);
8602 if ((mask & IPR_PCII_HRRQ_UPDATED) == 0 || (uproc & IPR_UPROCI_RESET_ALERT))
8603 ioa_cfg->needs_hard_reset = 1;
8604 if (interrupts & IPR_PCII_ERROR_INTERRUPTS)
8605 ioa_cfg->needs_hard_reset = 1;
8606 if (interrupts & IPR_PCII_IOA_UNIT_CHECKED)
8607 ioa_cfg->ioa_unit_checked = 1;
8609 ipr_mask_and_clear_interrupts(ioa_cfg, ~IPR_PCII_IOA_TRANS_TO_OPER);
8610 rc = request_irq(pdev->irq, ipr_isr,
8611 ioa_cfg->msi_received ? 0 : IRQF_SHARED,
8615 dev_err(&pdev->dev, "Couldn't register IRQ %d! rc=%d\n",
8620 if ((dev_id->driver_data & IPR_USE_PCI_WARM_RESET) ||
8621 (dev_id->device == PCI_DEVICE_ID_IBM_OBSIDIAN_E && !ioa_cfg->revid)) {
8622 ioa_cfg->needs_warm_reset = 1;
8623 ioa_cfg->reset = ipr_reset_slot_reset;
8625 ioa_cfg->reset = ipr_reset_start_bist;
8627 spin_lock(&ipr_driver_lock);
8628 list_add_tail(&ioa_cfg->queue, &ipr_ioa_head);
8629 spin_unlock(&ipr_driver_lock);
8636 ipr_free_mem(ioa_cfg);
8640 pci_disable_msi(pdev);
8641 out_release_regions:
8642 pci_release_regions(pdev);
8644 scsi_host_put(host);
8646 pci_disable_device(pdev);
8651 * ipr_scan_vsets - Scans for VSET devices
8652 * @ioa_cfg: ioa config struct
8654 * Description: Since the VSET resources do not follow SAM in that we can have
8655 * sparse LUNs with no LUN 0, we have to scan for these ourselves.
8660 static void ipr_scan_vsets(struct ipr_ioa_cfg *ioa_cfg)
8664 for (target = 0; target < IPR_MAX_NUM_TARGETS_PER_BUS; target++)
8665 for (lun = 0; lun < IPR_MAX_NUM_VSET_LUNS_PER_TARGET; lun++ )
8666 scsi_add_device(ioa_cfg->host, IPR_VSET_BUS, target, lun);
8670 * ipr_initiate_ioa_bringdown - Bring down an adapter
8671 * @ioa_cfg: ioa config struct
8672 * @shutdown_type: shutdown type
8674 * Description: This function will initiate bringing down the adapter.
8675 * This consists of issuing an IOA shutdown to the adapter
8676 * to flush the cache, and running BIST.
8677 * If the caller needs to wait on the completion of the reset,
8678 * the caller must sleep on the reset_wait_q.
8683 static void ipr_initiate_ioa_bringdown(struct ipr_ioa_cfg *ioa_cfg,
8684 enum ipr_shutdown_type shutdown_type)
8687 if (ioa_cfg->sdt_state == WAIT_FOR_DUMP)
8688 ioa_cfg->sdt_state = ABORT_DUMP;
8689 ioa_cfg->reset_retries = 0;
8690 ioa_cfg->in_ioa_bringdown = 1;
8691 ipr_initiate_ioa_reset(ioa_cfg, shutdown_type);
8696 * __ipr_remove - Remove a single adapter
8697 * @pdev: pci device struct
8699 * Adapter hot plug remove entry point.
8704 static void __ipr_remove(struct pci_dev *pdev)
8706 unsigned long host_lock_flags = 0;
8707 struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev);
8710 spin_lock_irqsave(ioa_cfg->host->host_lock, host_lock_flags);
8711 while(ioa_cfg->in_reset_reload) {
8712 spin_unlock_irqrestore(ioa_cfg->host->host_lock, host_lock_flags);
8713 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
8714 spin_lock_irqsave(ioa_cfg->host->host_lock, host_lock_flags);
8717 ipr_initiate_ioa_bringdown(ioa_cfg, IPR_SHUTDOWN_NORMAL);
8719 spin_unlock_irqrestore(ioa_cfg->host->host_lock, host_lock_flags);
8720 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
8721 flush_scheduled_work();
8722 spin_lock_irqsave(ioa_cfg->host->host_lock, host_lock_flags);
8724 spin_lock(&ipr_driver_lock);
8725 list_del(&ioa_cfg->queue);
8726 spin_unlock(&ipr_driver_lock);
8728 if (ioa_cfg->sdt_state == ABORT_DUMP)
8729 ioa_cfg->sdt_state = WAIT_FOR_DUMP;
8730 spin_unlock_irqrestore(ioa_cfg->host->host_lock, host_lock_flags);
8732 ipr_free_all_resources(ioa_cfg);
8738 * ipr_remove - IOA hot plug remove entry point
8739 * @pdev: pci device struct
8741 * Adapter hot plug remove entry point.
8746 static void __devexit ipr_remove(struct pci_dev *pdev)
8748 struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev);
8752 ipr_remove_trace_file(&ioa_cfg->host->shost_dev.kobj,
8754 ipr_remove_dump_file(&ioa_cfg->host->shost_dev.kobj,
8756 scsi_remove_host(ioa_cfg->host);
8764 * ipr_probe - Adapter hot plug add entry point
8767 * 0 on success / non-zero on failure
8769 static int __devinit ipr_probe(struct pci_dev *pdev,
8770 const struct pci_device_id *dev_id)
8772 struct ipr_ioa_cfg *ioa_cfg;
8775 rc = ipr_probe_ioa(pdev, dev_id);
8780 ioa_cfg = pci_get_drvdata(pdev);
8781 rc = ipr_probe_ioa_part2(ioa_cfg);
8788 rc = scsi_add_host(ioa_cfg->host, &pdev->dev);
8795 rc = ipr_create_trace_file(&ioa_cfg->host->shost_dev.kobj,
8799 scsi_remove_host(ioa_cfg->host);
8804 rc = ipr_create_dump_file(&ioa_cfg->host->shost_dev.kobj,
8808 ipr_remove_trace_file(&ioa_cfg->host->shost_dev.kobj,
8810 scsi_remove_host(ioa_cfg->host);
8815 scsi_scan_host(ioa_cfg->host);
8816 ipr_scan_vsets(ioa_cfg);
8817 scsi_add_device(ioa_cfg->host, IPR_IOA_BUS, IPR_IOA_TARGET, IPR_IOA_LUN);
8818 ioa_cfg->allow_ml_add_del = 1;
8819 ioa_cfg->host->max_channel = IPR_VSET_BUS;
8820 schedule_work(&ioa_cfg->work_q);
8825 * ipr_shutdown - Shutdown handler.
8826 * @pdev: pci device struct
8828 * This function is invoked upon system shutdown/reboot. It will issue
8829 * an adapter shutdown to the adapter to flush the write cache.
8834 static void ipr_shutdown(struct pci_dev *pdev)
8836 struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev);
8837 unsigned long lock_flags = 0;
8839 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
8840 while(ioa_cfg->in_reset_reload) {
8841 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
8842 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
8843 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
8846 ipr_initiate_ioa_bringdown(ioa_cfg, IPR_SHUTDOWN_NORMAL);
8847 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
8848 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
8851 static struct pci_device_id ipr_pci_table[] __devinitdata = {
8852 { PCI_VENDOR_ID_MYLEX, PCI_DEVICE_ID_IBM_GEMSTONE,
8853 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_5702, 0, 0, 0 },
8854 { PCI_VENDOR_ID_MYLEX, PCI_DEVICE_ID_IBM_GEMSTONE,
8855 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_5703, 0, 0, 0 },
8856 { PCI_VENDOR_ID_MYLEX, PCI_DEVICE_ID_IBM_GEMSTONE,
8857 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_573D, 0, 0, 0 },
8858 { PCI_VENDOR_ID_MYLEX, PCI_DEVICE_ID_IBM_GEMSTONE,
8859 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_573E, 0, 0, 0 },
8860 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CITRINE,
8861 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_571B, 0, 0, 0 },
8862 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CITRINE,
8863 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572E, 0, 0, 0 },
8864 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CITRINE,
8865 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_571A, 0, 0, 0 },
8866 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CITRINE,
8867 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_575B, 0, 0,
8868 IPR_USE_LONG_TRANSOP_TIMEOUT },
8869 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_OBSIDIAN,
8870 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572A, 0, 0, 0 },
8871 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_OBSIDIAN,
8872 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572B, 0, 0,
8873 IPR_USE_LONG_TRANSOP_TIMEOUT },
8874 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_OBSIDIAN,
8875 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_575C, 0, 0,
8876 IPR_USE_LONG_TRANSOP_TIMEOUT },
8877 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN,
8878 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572A, 0, 0, 0 },
8879 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN,
8880 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572B, 0, 0,
8881 IPR_USE_LONG_TRANSOP_TIMEOUT},
8882 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN,
8883 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_575C, 0, 0,
8884 IPR_USE_LONG_TRANSOP_TIMEOUT },
8885 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN_E,
8886 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_574E, 0, 0,
8887 IPR_USE_LONG_TRANSOP_TIMEOUT },
8888 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN_E,
8889 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57B3, 0, 0, 0 },
8890 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN_E,
8891 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57B7, 0, 0,
8892 IPR_USE_LONG_TRANSOP_TIMEOUT | IPR_USE_PCI_WARM_RESET },
8893 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_SNIPE,
8894 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_2780, 0, 0, 0 },
8895 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_SCAMP,
8896 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_571E, 0, 0, 0 },
8897 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_SCAMP,
8898 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_571F, 0, 0,
8899 IPR_USE_LONG_TRANSOP_TIMEOUT },
8900 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_SCAMP,
8901 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572F, 0, 0,
8902 IPR_USE_LONG_TRANSOP_TIMEOUT },
8903 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_FPGA_E2,
8904 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57B5, 0, 0, 0 },
8905 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_FPGA_E2,
8906 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_574D, 0, 0, 0 },
8907 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_FPGA_E2,
8908 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57B2, 0, 0, 0 },
8909 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_ASIC_E2,
8910 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57B4, 0, 0, 0 },
8911 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_ASIC_E2,
8912 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57B1, 0, 0, 0 },
8913 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_ASIC_E2,
8914 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57C6, 0, 0, 0 },
8915 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_ASIC_E2,
8916 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_575D, 0, 0, 0 },
8917 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_ASIC_E2,
8918 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57CE, 0, 0, 0 },
8921 MODULE_DEVICE_TABLE(pci, ipr_pci_table);
8923 static struct pci_error_handlers ipr_err_handler = {
8924 .error_detected = ipr_pci_error_detected,
8925 .slot_reset = ipr_pci_slot_reset,
8928 static struct pci_driver ipr_driver = {
8930 .id_table = ipr_pci_table,
8932 .remove = __devexit_p(ipr_remove),
8933 .shutdown = ipr_shutdown,
8934 .err_handler = &ipr_err_handler,
8938 * ipr_halt_done - Shutdown prepare completion
8943 static void ipr_halt_done(struct ipr_cmnd *ipr_cmd)
8945 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
8947 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
8951 * ipr_halt - Issue shutdown prepare to all adapters
8954 * NOTIFY_OK on success / NOTIFY_DONE on failure
8956 static int ipr_halt(struct notifier_block *nb, ulong event, void *buf)
8958 struct ipr_cmnd *ipr_cmd;
8959 struct ipr_ioa_cfg *ioa_cfg;
8960 unsigned long flags = 0;
8962 if (event != SYS_RESTART && event != SYS_HALT && event != SYS_POWER_OFF)
8965 spin_lock(&ipr_driver_lock);
8967 list_for_each_entry(ioa_cfg, &ipr_ioa_head, queue) {
8968 spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
8969 if (!ioa_cfg->allow_cmds) {
8970 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
8974 ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg);
8975 ipr_cmd->ioarcb.res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE);
8976 ipr_cmd->ioarcb.cmd_pkt.request_type = IPR_RQTYPE_IOACMD;
8977 ipr_cmd->ioarcb.cmd_pkt.cdb[0] = IPR_IOA_SHUTDOWN;
8978 ipr_cmd->ioarcb.cmd_pkt.cdb[1] = IPR_SHUTDOWN_PREPARE_FOR_NORMAL;
8980 ipr_do_req(ipr_cmd, ipr_halt_done, ipr_timeout, IPR_DEVICE_RESET_TIMEOUT);
8981 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
8983 spin_unlock(&ipr_driver_lock);
8988 static struct notifier_block ipr_notifier = {
8993 * ipr_init - Module entry point
8996 * 0 on success / negative value on failure
8998 static int __init ipr_init(void)
9000 ipr_info("IBM Power RAID SCSI Device Driver version: %s %s\n",
9001 IPR_DRIVER_VERSION, IPR_DRIVER_DATE);
9003 register_reboot_notifier(&ipr_notifier);
9004 return pci_register_driver(&ipr_driver);
9008 * ipr_exit - Module unload
9010 * Module unload entry point.
9015 static void __exit ipr_exit(void)
9017 unregister_reboot_notifier(&ipr_notifier);
9018 pci_unregister_driver(&ipr_driver);
9021 module_init(ipr_init);
9022 module_exit(ipr_exit);