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_PCI_CFG, &ipr_chip_cfg[0] },
178 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CITRINE, IPR_USE_LSI, IPR_SIS32, IPR_PCI_CFG, &ipr_chip_cfg[0] },
179 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_OBSIDIAN, IPR_USE_LSI, IPR_SIS32, IPR_PCI_CFG, &ipr_chip_cfg[0] },
180 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN, IPR_USE_LSI, IPR_SIS32, IPR_PCI_CFG, &ipr_chip_cfg[0] },
181 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN_E, IPR_USE_MSI, IPR_SIS32, IPR_PCI_CFG, &ipr_chip_cfg[0] },
182 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_SNIPE, IPR_USE_LSI, IPR_SIS32, IPR_PCI_CFG, &ipr_chip_cfg[1] },
183 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_SCAMP, IPR_USE_LSI, IPR_SIS32, IPR_PCI_CFG, &ipr_chip_cfg[1] },
184 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_FPGA_E2, IPR_USE_MSI, IPR_SIS64, IPR_MMIO, &ipr_chip_cfg[2] },
185 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_ASIC_E2, IPR_USE_MSI, IPR_SIS64, IPR_MMIO, &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 memcpy(&res->dev_lun.scsi_lun, &cfgtew->u.cfgte64->lun,
1052 sizeof(res->dev_lun.scsi_lun));
1053 res->lun = scsilun_to_int(&res->dev_lun);
1055 if (res->type == IPR_RES_TYPE_GENERIC_SCSI) {
1056 list_for_each_entry(gscsi_res, &ioa_cfg->used_res_q, queue) {
1057 if (gscsi_res->dev_id == cfgtew->u.cfgte64->dev_id) {
1059 res->target = gscsi_res->target;
1064 res->target = find_first_zero_bit(ioa_cfg->target_ids,
1065 ioa_cfg->max_devs_supported);
1066 set_bit(res->target, ioa_cfg->target_ids);
1068 } else if (res->type == IPR_RES_TYPE_IOAFP) {
1069 res->bus = IPR_IOAFP_VIRTUAL_BUS;
1071 } else if (res->type == IPR_RES_TYPE_ARRAY) {
1072 res->bus = IPR_ARRAY_VIRTUAL_BUS;
1073 res->target = find_first_zero_bit(ioa_cfg->array_ids,
1074 ioa_cfg->max_devs_supported);
1075 set_bit(res->target, ioa_cfg->array_ids);
1076 } else if (res->type == IPR_RES_TYPE_VOLUME_SET) {
1077 res->bus = IPR_VSET_VIRTUAL_BUS;
1078 res->target = find_first_zero_bit(ioa_cfg->vset_ids,
1079 ioa_cfg->max_devs_supported);
1080 set_bit(res->target, ioa_cfg->vset_ids);
1082 res->target = find_first_zero_bit(ioa_cfg->target_ids,
1083 ioa_cfg->max_devs_supported);
1084 set_bit(res->target, ioa_cfg->target_ids);
1087 proto = cfgtew->u.cfgte->proto;
1088 res->qmodel = IPR_QUEUEING_MODEL(res);
1089 res->flags = cfgtew->u.cfgte->flags;
1090 if (res->flags & IPR_IS_IOA_RESOURCE)
1091 res->type = IPR_RES_TYPE_IOAFP;
1093 res->type = cfgtew->u.cfgte->rsvd_subtype & 0x0f;
1095 res->bus = cfgtew->u.cfgte->res_addr.bus;
1096 res->target = cfgtew->u.cfgte->res_addr.target;
1097 res->lun = cfgtew->u.cfgte->res_addr.lun;
1098 res->lun_wwn = get_unaligned_be64(cfgtew->u.cfgte->lun_wwn);
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->dev_lun.scsi_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;
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 || res->del_from_ml) {
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 ARRAY_SIZE(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, error->num_entries,
2155 ARRAY_SIZE(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\n",
2170 ipr_format_res_path(array_entry->res_path, buffer,
2172 ipr_err("Expected Location: %s\n",
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 if (ioa_cfg->sis64) {
2904 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
2905 ssleep(IPR_DUMP_DELAY_SECONDS);
2906 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
2909 start_addr = readl(ioa_cfg->ioa_mailbox);
2911 if (!ioa_cfg->sis64 && !ipr_sdt_is_fmt2(start_addr)) {
2912 dev_err(&ioa_cfg->pdev->dev,
2913 "Invalid dump table format: %lx\n", start_addr);
2914 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
2918 dev_err(&ioa_cfg->pdev->dev, "Dump of IOA initiated\n");
2920 driver_dump->hdr.eye_catcher = IPR_DUMP_EYE_CATCHER;
2922 /* Initialize the overall dump header */
2923 driver_dump->hdr.len = sizeof(struct ipr_driver_dump);
2924 driver_dump->hdr.num_entries = 1;
2925 driver_dump->hdr.first_entry_offset = sizeof(struct ipr_dump_header);
2926 driver_dump->hdr.status = IPR_DUMP_STATUS_SUCCESS;
2927 driver_dump->hdr.os = IPR_DUMP_OS_LINUX;
2928 driver_dump->hdr.driver_name = IPR_DUMP_DRIVER_NAME;
2930 ipr_dump_version_data(ioa_cfg, driver_dump);
2931 ipr_dump_location_data(ioa_cfg, driver_dump);
2932 ipr_dump_ioa_type_data(ioa_cfg, driver_dump);
2933 ipr_dump_trace_data(ioa_cfg, driver_dump);
2935 /* Update dump_header */
2936 driver_dump->hdr.len += sizeof(struct ipr_dump_entry_header);
2938 /* IOA Dump entry */
2939 ipr_init_dump_entry_hdr(&ioa_dump->hdr);
2940 ioa_dump->hdr.len = 0;
2941 ioa_dump->hdr.data_type = IPR_DUMP_DATA_TYPE_BINARY;
2942 ioa_dump->hdr.id = IPR_DUMP_IOA_DUMP_ID;
2944 /* First entries in sdt are actually a list of dump addresses and
2945 lengths to gather the real dump data. sdt represents the pointer
2946 to the ioa generated dump table. Dump data will be extracted based
2947 on entries in this table */
2948 sdt = &ioa_dump->sdt;
2950 rc = ipr_get_ldump_data_section(ioa_cfg, start_addr, (__be32 *)sdt,
2951 sizeof(struct ipr_sdt) / sizeof(__be32));
2953 /* Smart Dump table is ready to use and the first entry is valid */
2954 if (rc || ((be32_to_cpu(sdt->hdr.state) != IPR_FMT3_SDT_READY_TO_USE) &&
2955 (be32_to_cpu(sdt->hdr.state) != IPR_FMT2_SDT_READY_TO_USE))) {
2956 dev_err(&ioa_cfg->pdev->dev,
2957 "Dump of IOA failed. Dump table not valid: %d, %X.\n",
2958 rc, be32_to_cpu(sdt->hdr.state));
2959 driver_dump->hdr.status = IPR_DUMP_STATUS_FAILED;
2960 ioa_cfg->sdt_state = DUMP_OBTAINED;
2961 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
2965 num_entries = be32_to_cpu(sdt->hdr.num_entries_used);
2967 if (num_entries > IPR_NUM_SDT_ENTRIES)
2968 num_entries = IPR_NUM_SDT_ENTRIES;
2970 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
2972 for (i = 0; i < num_entries; i++) {
2973 if (ioa_dump->hdr.len > IPR_MAX_IOA_DUMP_SIZE) {
2974 driver_dump->hdr.status = IPR_DUMP_STATUS_QUAL_SUCCESS;
2978 if (sdt->entry[i].flags & IPR_SDT_VALID_ENTRY) {
2979 sdt_word = be32_to_cpu(sdt->entry[i].start_token);
2981 bytes_to_copy = be32_to_cpu(sdt->entry[i].end_token);
2983 start_off = sdt_word & IPR_FMT2_MBX_ADDR_MASK;
2984 end_off = be32_to_cpu(sdt->entry[i].end_token);
2986 if (ipr_sdt_is_fmt2(sdt_word) && sdt_word)
2987 bytes_to_copy = end_off - start_off;
2992 if (bytes_to_copy > IPR_MAX_IOA_DUMP_SIZE) {
2993 sdt->entry[i].flags &= ~IPR_SDT_VALID_ENTRY;
2997 /* Copy data from adapter to driver buffers */
2998 bytes_copied = ipr_sdt_copy(ioa_cfg, sdt_word,
3001 ioa_dump->hdr.len += bytes_copied;
3003 if (bytes_copied != bytes_to_copy) {
3004 driver_dump->hdr.status = IPR_DUMP_STATUS_QUAL_SUCCESS;
3011 dev_err(&ioa_cfg->pdev->dev, "Dump of IOA completed.\n");
3013 /* Update dump_header */
3014 driver_dump->hdr.len += ioa_dump->hdr.len;
3016 ioa_cfg->sdt_state = DUMP_OBTAINED;
3021 #define ipr_get_ioa_dump(ioa_cfg, dump) do { } while(0)
3025 * ipr_release_dump - Free adapter dump memory
3026 * @kref: kref struct
3031 static void ipr_release_dump(struct kref *kref)
3033 struct ipr_dump *dump = container_of(kref,struct ipr_dump,kref);
3034 struct ipr_ioa_cfg *ioa_cfg = dump->ioa_cfg;
3035 unsigned long lock_flags = 0;
3039 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3040 ioa_cfg->dump = NULL;
3041 ioa_cfg->sdt_state = INACTIVE;
3042 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3044 for (i = 0; i < dump->ioa_dump.next_page_index; i++)
3045 free_page((unsigned long) dump->ioa_dump.ioa_data[i]);
3052 * ipr_worker_thread - Worker thread
3053 * @work: ioa config struct
3055 * Called at task level from a work thread. This function takes care
3056 * of adding and removing device from the mid-layer as configuration
3057 * changes are detected by the adapter.
3062 static void ipr_worker_thread(struct work_struct *work)
3064 unsigned long lock_flags;
3065 struct ipr_resource_entry *res;
3066 struct scsi_device *sdev;
3067 struct ipr_dump *dump;
3068 struct ipr_ioa_cfg *ioa_cfg =
3069 container_of(work, struct ipr_ioa_cfg, work_q);
3070 u8 bus, target, lun;
3074 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3076 if (ioa_cfg->sdt_state == GET_DUMP) {
3077 dump = ioa_cfg->dump;
3079 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3082 kref_get(&dump->kref);
3083 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3084 ipr_get_ioa_dump(ioa_cfg, dump);
3085 kref_put(&dump->kref, ipr_release_dump);
3087 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3088 if (ioa_cfg->sdt_state == DUMP_OBTAINED)
3089 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
3090 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3097 if (!ioa_cfg->allow_cmds || !ioa_cfg->allow_ml_add_del) {
3098 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3102 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) {
3103 if (res->del_from_ml && res->sdev) {
3106 if (!scsi_device_get(sdev)) {
3107 if (!res->add_to_ml)
3108 list_move_tail(&res->queue, &ioa_cfg->free_res_q);
3110 res->del_from_ml = 0;
3111 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3112 scsi_remove_device(sdev);
3113 scsi_device_put(sdev);
3114 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3121 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) {
3122 if (res->add_to_ml) {
3124 target = res->target;
3127 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3128 scsi_add_device(ioa_cfg->host, bus, target, lun);
3129 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3134 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3135 kobject_uevent(&ioa_cfg->host->shost_dev.kobj, KOBJ_CHANGE);
3139 #ifdef CONFIG_SCSI_IPR_TRACE
3141 * ipr_read_trace - Dump the adapter trace
3142 * @filp: open sysfs file
3143 * @kobj: kobject struct
3144 * @bin_attr: bin_attribute struct
3147 * @count: buffer size
3150 * number of bytes printed to buffer
3152 static ssize_t ipr_read_trace(struct file *filp, struct kobject *kobj,
3153 struct bin_attribute *bin_attr,
3154 char *buf, loff_t off, size_t count)
3156 struct device *dev = container_of(kobj, struct device, kobj);
3157 struct Scsi_Host *shost = class_to_shost(dev);
3158 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
3159 unsigned long lock_flags = 0;
3162 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3163 ret = memory_read_from_buffer(buf, count, &off, ioa_cfg->trace,
3165 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3170 static struct bin_attribute ipr_trace_attr = {
3176 .read = ipr_read_trace,
3181 * ipr_show_fw_version - Show the firmware version
3182 * @dev: class device struct
3186 * number of bytes printed to buffer
3188 static ssize_t ipr_show_fw_version(struct device *dev,
3189 struct device_attribute *attr, char *buf)
3191 struct Scsi_Host *shost = class_to_shost(dev);
3192 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
3193 struct ipr_inquiry_page3 *ucode_vpd = &ioa_cfg->vpd_cbs->page3_data;
3194 unsigned long lock_flags = 0;
3197 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3198 len = snprintf(buf, PAGE_SIZE, "%02X%02X%02X%02X\n",
3199 ucode_vpd->major_release, ucode_vpd->card_type,
3200 ucode_vpd->minor_release[0],
3201 ucode_vpd->minor_release[1]);
3202 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3206 static struct device_attribute ipr_fw_version_attr = {
3208 .name = "fw_version",
3211 .show = ipr_show_fw_version,
3215 * ipr_show_log_level - Show the adapter's error logging level
3216 * @dev: class device struct
3220 * number of bytes printed to buffer
3222 static ssize_t ipr_show_log_level(struct device *dev,
3223 struct device_attribute *attr, char *buf)
3225 struct Scsi_Host *shost = class_to_shost(dev);
3226 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
3227 unsigned long lock_flags = 0;
3230 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3231 len = snprintf(buf, PAGE_SIZE, "%d\n", ioa_cfg->log_level);
3232 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3237 * ipr_store_log_level - Change the adapter's error logging level
3238 * @dev: class device struct
3242 * number of bytes printed to buffer
3244 static ssize_t ipr_store_log_level(struct device *dev,
3245 struct device_attribute *attr,
3246 const char *buf, size_t count)
3248 struct Scsi_Host *shost = class_to_shost(dev);
3249 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
3250 unsigned long lock_flags = 0;
3252 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3253 ioa_cfg->log_level = simple_strtoul(buf, NULL, 10);
3254 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3258 static struct device_attribute ipr_log_level_attr = {
3260 .name = "log_level",
3261 .mode = S_IRUGO | S_IWUSR,
3263 .show = ipr_show_log_level,
3264 .store = ipr_store_log_level
3268 * ipr_store_diagnostics - IOA Diagnostics interface
3269 * @dev: device struct
3271 * @count: buffer size
3273 * This function will reset the adapter and wait a reasonable
3274 * amount of time for any errors that the adapter might log.
3277 * count on success / other on failure
3279 static ssize_t ipr_store_diagnostics(struct device *dev,
3280 struct device_attribute *attr,
3281 const char *buf, size_t count)
3283 struct Scsi_Host *shost = class_to_shost(dev);
3284 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
3285 unsigned long lock_flags = 0;
3288 if (!capable(CAP_SYS_ADMIN))
3291 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3292 while(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);
3295 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3298 ioa_cfg->errors_logged = 0;
3299 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NORMAL);
3301 if (ioa_cfg->in_reset_reload) {
3302 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3303 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
3305 /* Wait for a second for any errors to be logged */
3308 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3312 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3313 if (ioa_cfg->in_reset_reload || ioa_cfg->errors_logged)
3315 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3320 static struct device_attribute ipr_diagnostics_attr = {
3322 .name = "run_diagnostics",
3325 .store = ipr_store_diagnostics
3329 * ipr_show_adapter_state - Show the adapter's state
3330 * @class_dev: device struct
3334 * number of bytes printed to buffer
3336 static ssize_t ipr_show_adapter_state(struct device *dev,
3337 struct device_attribute *attr, char *buf)
3339 struct Scsi_Host *shost = class_to_shost(dev);
3340 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
3341 unsigned long lock_flags = 0;
3344 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3345 if (ioa_cfg->ioa_is_dead)
3346 len = snprintf(buf, PAGE_SIZE, "offline\n");
3348 len = snprintf(buf, PAGE_SIZE, "online\n");
3349 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3354 * ipr_store_adapter_state - Change adapter state
3355 * @dev: device struct
3357 * @count: buffer size
3359 * This function will change the adapter's state.
3362 * count on success / other on failure
3364 static ssize_t ipr_store_adapter_state(struct device *dev,
3365 struct device_attribute *attr,
3366 const char *buf, size_t count)
3368 struct Scsi_Host *shost = class_to_shost(dev);
3369 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
3370 unsigned long lock_flags;
3373 if (!capable(CAP_SYS_ADMIN))
3376 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3377 if (ioa_cfg->ioa_is_dead && !strncmp(buf, "online", 6)) {
3378 ioa_cfg->ioa_is_dead = 0;
3379 ioa_cfg->reset_retries = 0;
3380 ioa_cfg->in_ioa_bringdown = 0;
3381 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
3383 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3384 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
3389 static struct device_attribute ipr_ioa_state_attr = {
3391 .name = "online_state",
3392 .mode = S_IRUGO | S_IWUSR,
3394 .show = ipr_show_adapter_state,
3395 .store = ipr_store_adapter_state
3399 * ipr_store_reset_adapter - Reset the adapter
3400 * @dev: device struct
3402 * @count: buffer size
3404 * This function will reset the adapter.
3407 * count on success / other on failure
3409 static ssize_t ipr_store_reset_adapter(struct device *dev,
3410 struct device_attribute *attr,
3411 const char *buf, size_t count)
3413 struct Scsi_Host *shost = class_to_shost(dev);
3414 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
3415 unsigned long lock_flags;
3418 if (!capable(CAP_SYS_ADMIN))
3421 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3422 if (!ioa_cfg->in_reset_reload)
3423 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NORMAL);
3424 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3425 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
3430 static struct device_attribute ipr_ioa_reset_attr = {
3432 .name = "reset_host",
3435 .store = ipr_store_reset_adapter
3439 * ipr_alloc_ucode_buffer - Allocates a microcode download buffer
3440 * @buf_len: buffer length
3442 * Allocates a DMA'able buffer in chunks and assembles a scatter/gather
3443 * list to use for microcode download
3446 * pointer to sglist / NULL on failure
3448 static struct ipr_sglist *ipr_alloc_ucode_buffer(int buf_len)
3450 int sg_size, order, bsize_elem, num_elem, i, j;
3451 struct ipr_sglist *sglist;
3452 struct scatterlist *scatterlist;
3455 /* Get the minimum size per scatter/gather element */
3456 sg_size = buf_len / (IPR_MAX_SGLIST - 1);
3458 /* Get the actual size per element */
3459 order = get_order(sg_size);
3461 /* Determine the actual number of bytes per element */
3462 bsize_elem = PAGE_SIZE * (1 << order);
3464 /* Determine the actual number of sg entries needed */
3465 if (buf_len % bsize_elem)
3466 num_elem = (buf_len / bsize_elem) + 1;
3468 num_elem = buf_len / bsize_elem;
3470 /* Allocate a scatter/gather list for the DMA */
3471 sglist = kzalloc(sizeof(struct ipr_sglist) +
3472 (sizeof(struct scatterlist) * (num_elem - 1)),
3475 if (sglist == NULL) {
3480 scatterlist = sglist->scatterlist;
3481 sg_init_table(scatterlist, num_elem);
3483 sglist->order = order;
3484 sglist->num_sg = num_elem;
3486 /* Allocate a bunch of sg elements */
3487 for (i = 0; i < num_elem; i++) {
3488 page = alloc_pages(GFP_KERNEL, order);
3492 /* Free up what we already allocated */
3493 for (j = i - 1; j >= 0; j--)
3494 __free_pages(sg_page(&scatterlist[j]), order);
3499 sg_set_page(&scatterlist[i], page, 0, 0);
3506 * ipr_free_ucode_buffer - Frees a microcode download buffer
3507 * @p_dnld: scatter/gather list pointer
3509 * Free a DMA'able ucode download buffer previously allocated with
3510 * ipr_alloc_ucode_buffer
3515 static void ipr_free_ucode_buffer(struct ipr_sglist *sglist)
3519 for (i = 0; i < sglist->num_sg; i++)
3520 __free_pages(sg_page(&sglist->scatterlist[i]), sglist->order);
3526 * ipr_copy_ucode_buffer - Copy user buffer to kernel buffer
3527 * @sglist: scatter/gather list pointer
3528 * @buffer: buffer pointer
3529 * @len: buffer length
3531 * Copy a microcode image from a user buffer into a buffer allocated by
3532 * ipr_alloc_ucode_buffer
3535 * 0 on success / other on failure
3537 static int ipr_copy_ucode_buffer(struct ipr_sglist *sglist,
3538 u8 *buffer, u32 len)
3540 int bsize_elem, i, result = 0;
3541 struct scatterlist *scatterlist;
3544 /* Determine the actual number of bytes per element */
3545 bsize_elem = PAGE_SIZE * (1 << sglist->order);
3547 scatterlist = sglist->scatterlist;
3549 for (i = 0; i < (len / bsize_elem); i++, buffer += bsize_elem) {
3550 struct page *page = sg_page(&scatterlist[i]);
3553 memcpy(kaddr, buffer, bsize_elem);
3556 scatterlist[i].length = bsize_elem;
3564 if (len % bsize_elem) {
3565 struct page *page = sg_page(&scatterlist[i]);
3568 memcpy(kaddr, buffer, len % bsize_elem);
3571 scatterlist[i].length = len % bsize_elem;
3574 sglist->buffer_len = len;
3579 * ipr_build_ucode_ioadl64 - Build a microcode download IOADL
3580 * @ipr_cmd: ipr command struct
3581 * @sglist: scatter/gather list
3583 * Builds a microcode download IOA data list (IOADL).
3586 static void ipr_build_ucode_ioadl64(struct ipr_cmnd *ipr_cmd,
3587 struct ipr_sglist *sglist)
3589 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
3590 struct ipr_ioadl64_desc *ioadl64 = ipr_cmd->i.ioadl64;
3591 struct scatterlist *scatterlist = sglist->scatterlist;
3594 ipr_cmd->dma_use_sg = sglist->num_dma_sg;
3595 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ;
3596 ioarcb->data_transfer_length = cpu_to_be32(sglist->buffer_len);
3599 cpu_to_be32(sizeof(struct ipr_ioadl64_desc) * ipr_cmd->dma_use_sg);
3600 for (i = 0; i < ipr_cmd->dma_use_sg; i++) {
3601 ioadl64[i].flags = cpu_to_be32(IPR_IOADL_FLAGS_WRITE);
3602 ioadl64[i].data_len = cpu_to_be32(sg_dma_len(&scatterlist[i]));
3603 ioadl64[i].address = cpu_to_be64(sg_dma_address(&scatterlist[i]));
3606 ioadl64[i-1].flags |= cpu_to_be32(IPR_IOADL_FLAGS_LAST);
3610 * ipr_build_ucode_ioadl - Build a microcode download IOADL
3611 * @ipr_cmd: ipr command struct
3612 * @sglist: scatter/gather list
3614 * Builds a microcode download IOA data list (IOADL).
3617 static void ipr_build_ucode_ioadl(struct ipr_cmnd *ipr_cmd,
3618 struct ipr_sglist *sglist)
3620 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
3621 struct ipr_ioadl_desc *ioadl = ipr_cmd->i.ioadl;
3622 struct scatterlist *scatterlist = sglist->scatterlist;
3625 ipr_cmd->dma_use_sg = sglist->num_dma_sg;
3626 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ;
3627 ioarcb->data_transfer_length = cpu_to_be32(sglist->buffer_len);
3630 cpu_to_be32(sizeof(struct ipr_ioadl_desc) * ipr_cmd->dma_use_sg);
3632 for (i = 0; i < ipr_cmd->dma_use_sg; i++) {
3633 ioadl[i].flags_and_data_len =
3634 cpu_to_be32(IPR_IOADL_FLAGS_WRITE | sg_dma_len(&scatterlist[i]));
3636 cpu_to_be32(sg_dma_address(&scatterlist[i]));
3639 ioadl[i-1].flags_and_data_len |=
3640 cpu_to_be32(IPR_IOADL_FLAGS_LAST);
3644 * ipr_update_ioa_ucode - Update IOA's microcode
3645 * @ioa_cfg: ioa config struct
3646 * @sglist: scatter/gather list
3648 * Initiate an adapter reset to update the IOA's microcode
3651 * 0 on success / -EIO on failure
3653 static int ipr_update_ioa_ucode(struct ipr_ioa_cfg *ioa_cfg,
3654 struct ipr_sglist *sglist)
3656 unsigned long lock_flags;
3658 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3659 while(ioa_cfg->in_reset_reload) {
3660 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3661 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
3662 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3665 if (ioa_cfg->ucode_sglist) {
3666 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3667 dev_err(&ioa_cfg->pdev->dev,
3668 "Microcode download already in progress\n");
3672 sglist->num_dma_sg = pci_map_sg(ioa_cfg->pdev, sglist->scatterlist,
3673 sglist->num_sg, DMA_TO_DEVICE);
3675 if (!sglist->num_dma_sg) {
3676 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3677 dev_err(&ioa_cfg->pdev->dev,
3678 "Failed to map microcode download buffer!\n");
3682 ioa_cfg->ucode_sglist = sglist;
3683 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NORMAL);
3684 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3685 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
3687 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3688 ioa_cfg->ucode_sglist = NULL;
3689 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3694 * ipr_store_update_fw - Update the firmware on the adapter
3695 * @class_dev: device struct
3697 * @count: buffer size
3699 * This function will update the firmware on the adapter.
3702 * count on success / other on failure
3704 static ssize_t ipr_store_update_fw(struct device *dev,
3705 struct device_attribute *attr,
3706 const char *buf, size_t count)
3708 struct Scsi_Host *shost = class_to_shost(dev);
3709 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
3710 struct ipr_ucode_image_header *image_hdr;
3711 const struct firmware *fw_entry;
3712 struct ipr_sglist *sglist;
3715 int len, result, dnld_size;
3717 if (!capable(CAP_SYS_ADMIN))
3720 len = snprintf(fname, 99, "%s", buf);
3721 fname[len-1] = '\0';
3723 if(request_firmware(&fw_entry, fname, &ioa_cfg->pdev->dev)) {
3724 dev_err(&ioa_cfg->pdev->dev, "Firmware file %s not found\n", fname);
3728 image_hdr = (struct ipr_ucode_image_header *)fw_entry->data;
3730 if (be32_to_cpu(image_hdr->header_length) > fw_entry->size ||
3731 (ioa_cfg->vpd_cbs->page3_data.card_type &&
3732 ioa_cfg->vpd_cbs->page3_data.card_type != image_hdr->card_type)) {
3733 dev_err(&ioa_cfg->pdev->dev, "Invalid microcode buffer\n");
3734 release_firmware(fw_entry);
3738 src = (u8 *)image_hdr + be32_to_cpu(image_hdr->header_length);
3739 dnld_size = fw_entry->size - be32_to_cpu(image_hdr->header_length);
3740 sglist = ipr_alloc_ucode_buffer(dnld_size);
3743 dev_err(&ioa_cfg->pdev->dev, "Microcode buffer allocation failed\n");
3744 release_firmware(fw_entry);
3748 result = ipr_copy_ucode_buffer(sglist, src, dnld_size);
3751 dev_err(&ioa_cfg->pdev->dev,
3752 "Microcode buffer copy to DMA buffer failed\n");
3756 result = ipr_update_ioa_ucode(ioa_cfg, sglist);
3761 ipr_free_ucode_buffer(sglist);
3762 release_firmware(fw_entry);
3766 static struct device_attribute ipr_update_fw_attr = {
3768 .name = "update_fw",
3771 .store = ipr_store_update_fw
3775 * ipr_show_fw_type - Show the adapter's firmware type.
3776 * @dev: class device struct
3780 * number of bytes printed to buffer
3782 static ssize_t ipr_show_fw_type(struct device *dev,
3783 struct device_attribute *attr, char *buf)
3785 struct Scsi_Host *shost = class_to_shost(dev);
3786 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
3787 unsigned long lock_flags = 0;
3790 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3791 len = snprintf(buf, PAGE_SIZE, "%d\n", ioa_cfg->sis64);
3792 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3796 static struct device_attribute ipr_ioa_fw_type_attr = {
3801 .show = ipr_show_fw_type
3804 static struct device_attribute *ipr_ioa_attrs[] = {
3805 &ipr_fw_version_attr,
3806 &ipr_log_level_attr,
3807 &ipr_diagnostics_attr,
3808 &ipr_ioa_state_attr,
3809 &ipr_ioa_reset_attr,
3810 &ipr_update_fw_attr,
3811 &ipr_ioa_fw_type_attr,
3815 #ifdef CONFIG_SCSI_IPR_DUMP
3817 * ipr_read_dump - Dump the adapter
3818 * @filp: open sysfs file
3819 * @kobj: kobject struct
3820 * @bin_attr: bin_attribute struct
3823 * @count: buffer size
3826 * number of bytes printed to buffer
3828 static ssize_t ipr_read_dump(struct file *filp, struct kobject *kobj,
3829 struct bin_attribute *bin_attr,
3830 char *buf, loff_t off, size_t count)
3832 struct device *cdev = container_of(kobj, struct device, kobj);
3833 struct Scsi_Host *shost = class_to_shost(cdev);
3834 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
3835 struct ipr_dump *dump;
3836 unsigned long lock_flags = 0;
3841 if (!capable(CAP_SYS_ADMIN))
3844 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3845 dump = ioa_cfg->dump;
3847 if (ioa_cfg->sdt_state != DUMP_OBTAINED || !dump) {
3848 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3851 kref_get(&dump->kref);
3852 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3854 if (off > dump->driver_dump.hdr.len) {
3855 kref_put(&dump->kref, ipr_release_dump);
3859 if (off + count > dump->driver_dump.hdr.len) {
3860 count = dump->driver_dump.hdr.len - off;
3864 if (count && off < sizeof(dump->driver_dump)) {
3865 if (off + count > sizeof(dump->driver_dump))
3866 len = sizeof(dump->driver_dump) - off;
3869 src = (u8 *)&dump->driver_dump + off;
3870 memcpy(buf, src, len);
3876 off -= sizeof(dump->driver_dump);
3878 if (count && off < offsetof(struct ipr_ioa_dump, ioa_data)) {
3879 if (off + count > offsetof(struct ipr_ioa_dump, ioa_data))
3880 len = offsetof(struct ipr_ioa_dump, ioa_data) - off;
3883 src = (u8 *)&dump->ioa_dump + off;
3884 memcpy(buf, src, len);
3890 off -= offsetof(struct ipr_ioa_dump, ioa_data);
3893 if ((off & PAGE_MASK) != ((off + count) & PAGE_MASK))
3894 len = PAGE_ALIGN(off) - off;
3897 src = (u8 *)dump->ioa_dump.ioa_data[(off & PAGE_MASK) >> PAGE_SHIFT];
3898 src += off & ~PAGE_MASK;
3899 memcpy(buf, src, len);
3905 kref_put(&dump->kref, ipr_release_dump);
3910 * ipr_alloc_dump - Prepare for adapter dump
3911 * @ioa_cfg: ioa config struct
3914 * 0 on success / other on failure
3916 static int ipr_alloc_dump(struct ipr_ioa_cfg *ioa_cfg)
3918 struct ipr_dump *dump;
3919 unsigned long lock_flags = 0;
3921 dump = kzalloc(sizeof(struct ipr_dump), GFP_KERNEL);
3924 ipr_err("Dump memory allocation failed\n");
3928 kref_init(&dump->kref);
3929 dump->ioa_cfg = ioa_cfg;
3931 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3933 if (INACTIVE != ioa_cfg->sdt_state) {
3934 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3939 ioa_cfg->dump = dump;
3940 ioa_cfg->sdt_state = WAIT_FOR_DUMP;
3941 if (ioa_cfg->ioa_is_dead && !ioa_cfg->dump_taken) {
3942 ioa_cfg->dump_taken = 1;
3943 schedule_work(&ioa_cfg->work_q);
3945 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3951 * ipr_free_dump - Free adapter dump memory
3952 * @ioa_cfg: ioa config struct
3955 * 0 on success / other on failure
3957 static int ipr_free_dump(struct ipr_ioa_cfg *ioa_cfg)
3959 struct ipr_dump *dump;
3960 unsigned long lock_flags = 0;
3964 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3965 dump = ioa_cfg->dump;
3967 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3971 ioa_cfg->dump = NULL;
3972 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3974 kref_put(&dump->kref, ipr_release_dump);
3981 * ipr_write_dump - Setup dump state of adapter
3982 * @filp: open sysfs file
3983 * @kobj: kobject struct
3984 * @bin_attr: bin_attribute struct
3987 * @count: buffer size
3990 * number of bytes printed to buffer
3992 static ssize_t ipr_write_dump(struct file *filp, struct kobject *kobj,
3993 struct bin_attribute *bin_attr,
3994 char *buf, loff_t off, size_t count)
3996 struct device *cdev = container_of(kobj, struct device, kobj);
3997 struct Scsi_Host *shost = class_to_shost(cdev);
3998 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
4001 if (!capable(CAP_SYS_ADMIN))
4005 rc = ipr_alloc_dump(ioa_cfg);
4006 else if (buf[0] == '0')
4007 rc = ipr_free_dump(ioa_cfg);
4017 static struct bin_attribute ipr_dump_attr = {
4020 .mode = S_IRUSR | S_IWUSR,
4023 .read = ipr_read_dump,
4024 .write = ipr_write_dump
4027 static int ipr_free_dump(struct ipr_ioa_cfg *ioa_cfg) { return 0; };
4031 * ipr_change_queue_depth - Change the device's queue depth
4032 * @sdev: scsi device struct
4033 * @qdepth: depth to set
4034 * @reason: calling context
4039 static int ipr_change_queue_depth(struct scsi_device *sdev, int qdepth,
4042 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)sdev->host->hostdata;
4043 struct ipr_resource_entry *res;
4044 unsigned long lock_flags = 0;
4046 if (reason != SCSI_QDEPTH_DEFAULT)
4049 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4050 res = (struct ipr_resource_entry *)sdev->hostdata;
4052 if (res && ipr_is_gata(res) && qdepth > IPR_MAX_CMD_PER_ATA_LUN)
4053 qdepth = IPR_MAX_CMD_PER_ATA_LUN;
4054 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4056 scsi_adjust_queue_depth(sdev, scsi_get_tag_type(sdev), qdepth);
4057 return sdev->queue_depth;
4061 * ipr_change_queue_type - Change the device's queue type
4062 * @dsev: scsi device struct
4063 * @tag_type: type of tags to use
4066 * actual queue type set
4068 static int ipr_change_queue_type(struct scsi_device *sdev, int tag_type)
4070 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)sdev->host->hostdata;
4071 struct ipr_resource_entry *res;
4072 unsigned long lock_flags = 0;
4074 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4075 res = (struct ipr_resource_entry *)sdev->hostdata;
4078 if (ipr_is_gscsi(res) && sdev->tagged_supported) {
4080 * We don't bother quiescing the device here since the
4081 * adapter firmware does it for us.
4083 scsi_set_tag_type(sdev, tag_type);
4086 scsi_activate_tcq(sdev, sdev->queue_depth);
4088 scsi_deactivate_tcq(sdev, sdev->queue_depth);
4094 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4099 * ipr_show_adapter_handle - Show the adapter's resource handle for this device
4100 * @dev: device struct
4101 * @attr: device attribute structure
4105 * number of bytes printed to buffer
4107 static ssize_t ipr_show_adapter_handle(struct device *dev, struct device_attribute *attr, char *buf)
4109 struct scsi_device *sdev = to_scsi_device(dev);
4110 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)sdev->host->hostdata;
4111 struct ipr_resource_entry *res;
4112 unsigned long lock_flags = 0;
4113 ssize_t len = -ENXIO;
4115 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4116 res = (struct ipr_resource_entry *)sdev->hostdata;
4118 len = snprintf(buf, PAGE_SIZE, "%08X\n", res->res_handle);
4119 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4123 static struct device_attribute ipr_adapter_handle_attr = {
4125 .name = "adapter_handle",
4128 .show = ipr_show_adapter_handle
4132 * ipr_show_resource_path - Show the resource path or the resource address for
4134 * @dev: device struct
4135 * @attr: device attribute structure
4139 * number of bytes printed to buffer
4141 static ssize_t ipr_show_resource_path(struct device *dev, struct device_attribute *attr, char *buf)
4143 struct scsi_device *sdev = to_scsi_device(dev);
4144 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)sdev->host->hostdata;
4145 struct ipr_resource_entry *res;
4146 unsigned long lock_flags = 0;
4147 ssize_t len = -ENXIO;
4148 char buffer[IPR_MAX_RES_PATH_LENGTH];
4150 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4151 res = (struct ipr_resource_entry *)sdev->hostdata;
4152 if (res && ioa_cfg->sis64)
4153 len = snprintf(buf, PAGE_SIZE, "%s\n",
4154 ipr_format_res_path(res->res_path, buffer,
4157 len = snprintf(buf, PAGE_SIZE, "%d:%d:%d:%d\n", ioa_cfg->host->host_no,
4158 res->bus, res->target, res->lun);
4160 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4164 static struct device_attribute ipr_resource_path_attr = {
4166 .name = "resource_path",
4169 .show = ipr_show_resource_path
4173 * ipr_show_device_id - Show the device_id for this device.
4174 * @dev: device struct
4175 * @attr: device attribute structure
4179 * number of bytes printed to buffer
4181 static ssize_t ipr_show_device_id(struct device *dev, struct device_attribute *attr, char *buf)
4183 struct scsi_device *sdev = to_scsi_device(dev);
4184 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)sdev->host->hostdata;
4185 struct ipr_resource_entry *res;
4186 unsigned long lock_flags = 0;
4187 ssize_t len = -ENXIO;
4189 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4190 res = (struct ipr_resource_entry *)sdev->hostdata;
4191 if (res && ioa_cfg->sis64)
4192 len = snprintf(buf, PAGE_SIZE, "0x%llx\n", res->dev_id);
4194 len = snprintf(buf, PAGE_SIZE, "0x%llx\n", res->lun_wwn);
4196 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4200 static struct device_attribute ipr_device_id_attr = {
4202 .name = "device_id",
4205 .show = ipr_show_device_id
4209 * ipr_show_resource_type - Show the resource type for this device.
4210 * @dev: device struct
4211 * @attr: device attribute structure
4215 * number of bytes printed to buffer
4217 static ssize_t ipr_show_resource_type(struct device *dev, struct device_attribute *attr, char *buf)
4219 struct scsi_device *sdev = to_scsi_device(dev);
4220 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)sdev->host->hostdata;
4221 struct ipr_resource_entry *res;
4222 unsigned long lock_flags = 0;
4223 ssize_t len = -ENXIO;
4225 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4226 res = (struct ipr_resource_entry *)sdev->hostdata;
4229 len = snprintf(buf, PAGE_SIZE, "%x\n", res->type);
4231 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4235 static struct device_attribute ipr_resource_type_attr = {
4237 .name = "resource_type",
4240 .show = ipr_show_resource_type
4243 static struct device_attribute *ipr_dev_attrs[] = {
4244 &ipr_adapter_handle_attr,
4245 &ipr_resource_path_attr,
4246 &ipr_device_id_attr,
4247 &ipr_resource_type_attr,
4252 * ipr_biosparam - Return the HSC mapping
4253 * @sdev: scsi device struct
4254 * @block_device: block device pointer
4255 * @capacity: capacity of the device
4256 * @parm: Array containing returned HSC values.
4258 * This function generates the HSC parms that fdisk uses.
4259 * We want to make sure we return something that places partitions
4260 * on 4k boundaries for best performance with the IOA.
4265 static int ipr_biosparam(struct scsi_device *sdev,
4266 struct block_device *block_device,
4267 sector_t capacity, int *parm)
4275 cylinders = capacity;
4276 sector_div(cylinders, (128 * 32));
4281 parm[2] = cylinders;
4287 * ipr_find_starget - Find target based on bus/target.
4288 * @starget: scsi target struct
4291 * resource entry pointer if found / NULL if not found
4293 static struct ipr_resource_entry *ipr_find_starget(struct scsi_target *starget)
4295 struct Scsi_Host *shost = dev_to_shost(&starget->dev);
4296 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) shost->hostdata;
4297 struct ipr_resource_entry *res;
4299 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) {
4300 if ((res->bus == starget->channel) &&
4301 (res->target == starget->id) &&
4310 static struct ata_port_info sata_port_info;
4313 * ipr_target_alloc - Prepare for commands to a SCSI target
4314 * @starget: scsi target struct
4316 * If the device is a SATA device, this function allocates an
4317 * ATA port with libata, else it does nothing.
4320 * 0 on success / non-0 on failure
4322 static int ipr_target_alloc(struct scsi_target *starget)
4324 struct Scsi_Host *shost = dev_to_shost(&starget->dev);
4325 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) shost->hostdata;
4326 struct ipr_sata_port *sata_port;
4327 struct ata_port *ap;
4328 struct ipr_resource_entry *res;
4329 unsigned long lock_flags;
4331 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4332 res = ipr_find_starget(starget);
4333 starget->hostdata = NULL;
4335 if (res && ipr_is_gata(res)) {
4336 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4337 sata_port = kzalloc(sizeof(*sata_port), GFP_KERNEL);
4341 ap = ata_sas_port_alloc(&ioa_cfg->ata_host, &sata_port_info, shost);
4343 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4344 sata_port->ioa_cfg = ioa_cfg;
4346 sata_port->res = res;
4348 res->sata_port = sata_port;
4349 ap->private_data = sata_port;
4350 starget->hostdata = sata_port;
4356 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4362 * ipr_target_destroy - Destroy a SCSI target
4363 * @starget: scsi target struct
4365 * If the device was a SATA device, this function frees the libata
4366 * ATA port, else it does nothing.
4369 static void ipr_target_destroy(struct scsi_target *starget)
4371 struct ipr_sata_port *sata_port = starget->hostdata;
4372 struct Scsi_Host *shost = dev_to_shost(&starget->dev);
4373 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) shost->hostdata;
4375 if (ioa_cfg->sis64) {
4376 if (starget->channel == IPR_ARRAY_VIRTUAL_BUS)
4377 clear_bit(starget->id, ioa_cfg->array_ids);
4378 else if (starget->channel == IPR_VSET_VIRTUAL_BUS)
4379 clear_bit(starget->id, ioa_cfg->vset_ids);
4380 else if (starget->channel == 0)
4381 clear_bit(starget->id, ioa_cfg->target_ids);
4385 starget->hostdata = NULL;
4386 ata_sas_port_destroy(sata_port->ap);
4392 * ipr_find_sdev - Find device based on bus/target/lun.
4393 * @sdev: scsi device struct
4396 * resource entry pointer if found / NULL if not found
4398 static struct ipr_resource_entry *ipr_find_sdev(struct scsi_device *sdev)
4400 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) sdev->host->hostdata;
4401 struct ipr_resource_entry *res;
4403 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) {
4404 if ((res->bus == sdev->channel) &&
4405 (res->target == sdev->id) &&
4406 (res->lun == sdev->lun))
4414 * ipr_slave_destroy - Unconfigure a SCSI device
4415 * @sdev: scsi device struct
4420 static void ipr_slave_destroy(struct scsi_device *sdev)
4422 struct ipr_resource_entry *res;
4423 struct ipr_ioa_cfg *ioa_cfg;
4424 unsigned long lock_flags = 0;
4426 ioa_cfg = (struct ipr_ioa_cfg *) sdev->host->hostdata;
4428 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4429 res = (struct ipr_resource_entry *) sdev->hostdata;
4432 res->sata_port->ap->link.device[0].class = ATA_DEV_NONE;
4433 sdev->hostdata = NULL;
4435 res->sata_port = NULL;
4437 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4441 * ipr_slave_configure - Configure a SCSI device
4442 * @sdev: scsi device struct
4444 * This function configures the specified scsi device.
4449 static int ipr_slave_configure(struct scsi_device *sdev)
4451 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) sdev->host->hostdata;
4452 struct ipr_resource_entry *res;
4453 struct ata_port *ap = NULL;
4454 unsigned long lock_flags = 0;
4455 char buffer[IPR_MAX_RES_PATH_LENGTH];
4457 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4458 res = sdev->hostdata;
4460 if (ipr_is_af_dasd_device(res))
4461 sdev->type = TYPE_RAID;
4462 if (ipr_is_af_dasd_device(res) || ipr_is_ioa_resource(res)) {
4463 sdev->scsi_level = 4;
4464 sdev->no_uld_attach = 1;
4466 if (ipr_is_vset_device(res)) {
4467 blk_queue_rq_timeout(sdev->request_queue,
4468 IPR_VSET_RW_TIMEOUT);
4469 blk_queue_max_hw_sectors(sdev->request_queue, IPR_VSET_MAX_SECTORS);
4471 if (ipr_is_gata(res) && res->sata_port)
4472 ap = res->sata_port->ap;
4473 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4476 scsi_adjust_queue_depth(sdev, 0, IPR_MAX_CMD_PER_ATA_LUN);
4477 ata_sas_slave_configure(sdev, ap);
4479 scsi_adjust_queue_depth(sdev, 0, sdev->host->cmd_per_lun);
4481 sdev_printk(KERN_INFO, sdev, "Resource path: %s\n",
4482 ipr_format_res_path(res->res_path, buffer,
4486 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4491 * ipr_ata_slave_alloc - Prepare for commands to a SATA device
4492 * @sdev: scsi device struct
4494 * This function initializes an ATA port so that future commands
4495 * sent through queuecommand will work.
4500 static int ipr_ata_slave_alloc(struct scsi_device *sdev)
4502 struct ipr_sata_port *sata_port = NULL;
4506 if (sdev->sdev_target)
4507 sata_port = sdev->sdev_target->hostdata;
4509 rc = ata_sas_port_init(sata_port->ap);
4511 ipr_slave_destroy(sdev);
4518 * ipr_slave_alloc - Prepare for commands to a device.
4519 * @sdev: scsi device struct
4521 * This function saves a pointer to the resource entry
4522 * in the scsi device struct if the device exists. We
4523 * can then use this pointer in ipr_queuecommand when
4524 * handling new commands.
4527 * 0 on success / -ENXIO if device does not exist
4529 static int ipr_slave_alloc(struct scsi_device *sdev)
4531 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) sdev->host->hostdata;
4532 struct ipr_resource_entry *res;
4533 unsigned long lock_flags;
4536 sdev->hostdata = NULL;
4538 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4540 res = ipr_find_sdev(sdev);
4545 sdev->hostdata = res;
4546 if (!ipr_is_naca_model(res))
4547 res->needs_sync_complete = 1;
4549 if (ipr_is_gata(res)) {
4550 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4551 return ipr_ata_slave_alloc(sdev);
4555 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4561 * ipr_eh_host_reset - Reset the host adapter
4562 * @scsi_cmd: scsi command struct
4567 static int __ipr_eh_host_reset(struct scsi_cmnd * scsi_cmd)
4569 struct ipr_ioa_cfg *ioa_cfg;
4573 ioa_cfg = (struct ipr_ioa_cfg *) scsi_cmd->device->host->hostdata;
4575 dev_err(&ioa_cfg->pdev->dev,
4576 "Adapter being reset as a result of error recovery.\n");
4578 if (WAIT_FOR_DUMP == ioa_cfg->sdt_state)
4579 ioa_cfg->sdt_state = GET_DUMP;
4581 rc = ipr_reset_reload(ioa_cfg, IPR_SHUTDOWN_ABBREV);
4587 static int ipr_eh_host_reset(struct scsi_cmnd * cmd)
4591 spin_lock_irq(cmd->device->host->host_lock);
4592 rc = __ipr_eh_host_reset(cmd);
4593 spin_unlock_irq(cmd->device->host->host_lock);
4599 * ipr_device_reset - Reset the device
4600 * @ioa_cfg: ioa config struct
4601 * @res: resource entry struct
4603 * This function issues a device reset to the affected device.
4604 * If the device is a SCSI device, a LUN reset will be sent
4605 * to the device first. If that does not work, a target reset
4606 * will be sent. If the device is a SATA device, a PHY reset will
4610 * 0 on success / non-zero on failure
4612 static int ipr_device_reset(struct ipr_ioa_cfg *ioa_cfg,
4613 struct ipr_resource_entry *res)
4615 struct ipr_cmnd *ipr_cmd;
4616 struct ipr_ioarcb *ioarcb;
4617 struct ipr_cmd_pkt *cmd_pkt;
4618 struct ipr_ioarcb_ata_regs *regs;
4622 ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg);
4623 ioarcb = &ipr_cmd->ioarcb;
4624 cmd_pkt = &ioarcb->cmd_pkt;
4626 if (ipr_cmd->ioa_cfg->sis64) {
4627 regs = &ipr_cmd->i.ata_ioadl.regs;
4628 ioarcb->add_cmd_parms_offset = cpu_to_be16(sizeof(*ioarcb));
4630 regs = &ioarcb->u.add_data.u.regs;
4632 ioarcb->res_handle = res->res_handle;
4633 cmd_pkt->request_type = IPR_RQTYPE_IOACMD;
4634 cmd_pkt->cdb[0] = IPR_RESET_DEVICE;
4635 if (ipr_is_gata(res)) {
4636 cmd_pkt->cdb[2] = IPR_ATA_PHY_RESET;
4637 ioarcb->add_cmd_parms_len = cpu_to_be16(sizeof(regs->flags));
4638 regs->flags |= IPR_ATA_FLAG_STATUS_ON_GOOD_COMPLETION;
4641 ipr_send_blocking_cmd(ipr_cmd, ipr_timeout, IPR_DEVICE_RESET_TIMEOUT);
4642 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
4643 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
4644 if (ipr_is_gata(res) && res->sata_port && ioasc != IPR_IOASC_IOA_WAS_RESET) {
4645 if (ipr_cmd->ioa_cfg->sis64)
4646 memcpy(&res->sata_port->ioasa, &ipr_cmd->s.ioasa64.u.gata,
4647 sizeof(struct ipr_ioasa_gata));
4649 memcpy(&res->sata_port->ioasa, &ipr_cmd->s.ioasa.u.gata,
4650 sizeof(struct ipr_ioasa_gata));
4654 return (IPR_IOASC_SENSE_KEY(ioasc) ? -EIO : 0);
4658 * ipr_sata_reset - Reset the SATA port
4659 * @link: SATA link to reset
4660 * @classes: class of the attached device
4662 * This function issues a SATA phy reset to the affected ATA link.
4665 * 0 on success / non-zero on failure
4667 static int ipr_sata_reset(struct ata_link *link, unsigned int *classes,
4668 unsigned long deadline)
4670 struct ipr_sata_port *sata_port = link->ap->private_data;
4671 struct ipr_ioa_cfg *ioa_cfg = sata_port->ioa_cfg;
4672 struct ipr_resource_entry *res;
4673 unsigned long lock_flags = 0;
4677 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4678 while(ioa_cfg->in_reset_reload) {
4679 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4680 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
4681 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4684 res = sata_port->res;
4686 rc = ipr_device_reset(ioa_cfg, res);
4687 *classes = res->ata_class;
4690 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4696 * ipr_eh_dev_reset - Reset the device
4697 * @scsi_cmd: scsi command struct
4699 * This function issues a device reset to the affected device.
4700 * A LUN reset will be sent to the device first. If that does
4701 * not work, a target reset will be sent.
4706 static int __ipr_eh_dev_reset(struct scsi_cmnd * scsi_cmd)
4708 struct ipr_cmnd *ipr_cmd;
4709 struct ipr_ioa_cfg *ioa_cfg;
4710 struct ipr_resource_entry *res;
4711 struct ata_port *ap;
4715 ioa_cfg = (struct ipr_ioa_cfg *) scsi_cmd->device->host->hostdata;
4716 res = scsi_cmd->device->hostdata;
4722 * If we are currently going through reset/reload, return failed. This will force the
4723 * mid-layer to call ipr_eh_host_reset, which will then go to sleep and wait for the
4726 if (ioa_cfg->in_reset_reload)
4728 if (ioa_cfg->ioa_is_dead)
4731 list_for_each_entry(ipr_cmd, &ioa_cfg->pending_q, queue) {
4732 if (ipr_cmd->ioarcb.res_handle == res->res_handle) {
4733 if (ipr_cmd->scsi_cmd)
4734 ipr_cmd->done = ipr_scsi_eh_done;
4736 ipr_cmd->done = ipr_sata_eh_done;
4737 if (ipr_cmd->qc && !(ipr_cmd->qc->flags & ATA_QCFLAG_FAILED)) {
4738 ipr_cmd->qc->err_mask |= AC_ERR_TIMEOUT;
4739 ipr_cmd->qc->flags |= ATA_QCFLAG_FAILED;
4744 res->resetting_device = 1;
4745 scmd_printk(KERN_ERR, scsi_cmd, "Resetting device\n");
4747 if (ipr_is_gata(res) && res->sata_port) {
4748 ap = res->sata_port->ap;
4749 spin_unlock_irq(scsi_cmd->device->host->host_lock);
4750 ata_std_error_handler(ap);
4751 spin_lock_irq(scsi_cmd->device->host->host_lock);
4753 list_for_each_entry(ipr_cmd, &ioa_cfg->pending_q, queue) {
4754 if (ipr_cmd->ioarcb.res_handle == res->res_handle) {
4760 rc = ipr_device_reset(ioa_cfg, res);
4761 res->resetting_device = 0;
4764 return (rc ? FAILED : SUCCESS);
4767 static int ipr_eh_dev_reset(struct scsi_cmnd * cmd)
4771 spin_lock_irq(cmd->device->host->host_lock);
4772 rc = __ipr_eh_dev_reset(cmd);
4773 spin_unlock_irq(cmd->device->host->host_lock);
4779 * ipr_bus_reset_done - Op done function for bus reset.
4780 * @ipr_cmd: ipr command struct
4782 * This function is the op done function for a bus reset
4787 static void ipr_bus_reset_done(struct ipr_cmnd *ipr_cmd)
4789 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
4790 struct ipr_resource_entry *res;
4793 if (!ioa_cfg->sis64)
4794 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) {
4795 if (res->res_handle == ipr_cmd->ioarcb.res_handle) {
4796 scsi_report_bus_reset(ioa_cfg->host, res->bus);
4802 * If abort has not completed, indicate the reset has, else call the
4803 * abort's done function to wake the sleeping eh thread
4805 if (ipr_cmd->sibling->sibling)
4806 ipr_cmd->sibling->sibling = NULL;
4808 ipr_cmd->sibling->done(ipr_cmd->sibling);
4810 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
4815 * ipr_abort_timeout - An abort task has timed out
4816 * @ipr_cmd: ipr command struct
4818 * This function handles when an abort task times out. If this
4819 * happens we issue a bus reset since we have resources tied
4820 * up that must be freed before returning to the midlayer.
4825 static void ipr_abort_timeout(struct ipr_cmnd *ipr_cmd)
4827 struct ipr_cmnd *reset_cmd;
4828 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
4829 struct ipr_cmd_pkt *cmd_pkt;
4830 unsigned long lock_flags = 0;
4833 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4834 if (ipr_cmd->completion.done || ioa_cfg->in_reset_reload) {
4835 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4839 sdev_printk(KERN_ERR, ipr_cmd->u.sdev, "Abort timed out. Resetting bus.\n");
4840 reset_cmd = ipr_get_free_ipr_cmnd(ioa_cfg);
4841 ipr_cmd->sibling = reset_cmd;
4842 reset_cmd->sibling = ipr_cmd;
4843 reset_cmd->ioarcb.res_handle = ipr_cmd->ioarcb.res_handle;
4844 cmd_pkt = &reset_cmd->ioarcb.cmd_pkt;
4845 cmd_pkt->request_type = IPR_RQTYPE_IOACMD;
4846 cmd_pkt->cdb[0] = IPR_RESET_DEVICE;
4847 cmd_pkt->cdb[2] = IPR_RESET_TYPE_SELECT | IPR_BUS_RESET;
4849 ipr_do_req(reset_cmd, ipr_bus_reset_done, ipr_timeout, IPR_DEVICE_RESET_TIMEOUT);
4850 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4855 * ipr_cancel_op - Cancel specified op
4856 * @scsi_cmd: scsi command struct
4858 * This function cancels specified op.
4863 static int ipr_cancel_op(struct scsi_cmnd * scsi_cmd)
4865 struct ipr_cmnd *ipr_cmd;
4866 struct ipr_ioa_cfg *ioa_cfg;
4867 struct ipr_resource_entry *res;
4868 struct ipr_cmd_pkt *cmd_pkt;
4873 ioa_cfg = (struct ipr_ioa_cfg *)scsi_cmd->device->host->hostdata;
4874 res = scsi_cmd->device->hostdata;
4876 /* If we are currently going through reset/reload, return failed.
4877 * This will force the mid-layer to call ipr_eh_host_reset,
4878 * which will then go to sleep and wait for the reset to complete
4880 if (ioa_cfg->in_reset_reload || ioa_cfg->ioa_is_dead)
4882 if (!res || !ipr_is_gscsi(res))
4885 list_for_each_entry(ipr_cmd, &ioa_cfg->pending_q, queue) {
4886 if (ipr_cmd->scsi_cmd == scsi_cmd) {
4887 ipr_cmd->done = ipr_scsi_eh_done;
4896 ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg);
4897 ipr_cmd->ioarcb.res_handle = res->res_handle;
4898 cmd_pkt = &ipr_cmd->ioarcb.cmd_pkt;
4899 cmd_pkt->request_type = IPR_RQTYPE_IOACMD;
4900 cmd_pkt->cdb[0] = IPR_CANCEL_ALL_REQUESTS;
4901 ipr_cmd->u.sdev = scsi_cmd->device;
4903 scmd_printk(KERN_ERR, scsi_cmd, "Aborting command: %02X\n",
4905 ipr_send_blocking_cmd(ipr_cmd, ipr_abort_timeout, IPR_CANCEL_ALL_TIMEOUT);
4906 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
4909 * If the abort task timed out and we sent a bus reset, we will get
4910 * one the following responses to the abort
4912 if (ioasc == IPR_IOASC_BUS_WAS_RESET || ioasc == IPR_IOASC_SYNC_REQUIRED) {
4917 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
4918 if (!ipr_is_naca_model(res))
4919 res->needs_sync_complete = 1;
4922 return (IPR_IOASC_SENSE_KEY(ioasc) ? FAILED : SUCCESS);
4926 * ipr_eh_abort - Abort a single op
4927 * @scsi_cmd: scsi command struct
4932 static int ipr_eh_abort(struct scsi_cmnd * scsi_cmd)
4934 unsigned long flags;
4939 spin_lock_irqsave(scsi_cmd->device->host->host_lock, flags);
4940 rc = ipr_cancel_op(scsi_cmd);
4941 spin_unlock_irqrestore(scsi_cmd->device->host->host_lock, flags);
4948 * ipr_handle_other_interrupt - Handle "other" interrupts
4949 * @ioa_cfg: ioa config struct
4950 * @int_reg: interrupt register
4953 * IRQ_NONE / IRQ_HANDLED
4955 static irqreturn_t ipr_handle_other_interrupt(struct ipr_ioa_cfg *ioa_cfg,
4958 irqreturn_t rc = IRQ_HANDLED;
4961 int_mask_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg32);
4962 int_reg &= ~int_mask_reg;
4964 /* If an interrupt on the adapter did not occur, ignore it.
4965 * Or in the case of SIS 64, check for a stage change interrupt.
4967 if ((int_reg & IPR_PCII_OPER_INTERRUPTS) == 0) {
4968 if (ioa_cfg->sis64) {
4969 int_mask_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg);
4970 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg) & ~int_mask_reg;
4971 if (int_reg & IPR_PCII_IPL_STAGE_CHANGE) {
4973 /* clear stage change */
4974 writel(IPR_PCII_IPL_STAGE_CHANGE, ioa_cfg->regs.clr_interrupt_reg);
4975 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg) & ~int_mask_reg;
4976 list_del(&ioa_cfg->reset_cmd->queue);
4977 del_timer(&ioa_cfg->reset_cmd->timer);
4978 ipr_reset_ioa_job(ioa_cfg->reset_cmd);
4986 if (int_reg & IPR_PCII_IOA_TRANS_TO_OPER) {
4987 /* Mask the interrupt */
4988 writel(IPR_PCII_IOA_TRANS_TO_OPER, ioa_cfg->regs.set_interrupt_mask_reg);
4990 /* Clear the interrupt */
4991 writel(IPR_PCII_IOA_TRANS_TO_OPER, ioa_cfg->regs.clr_interrupt_reg);
4992 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg);
4994 list_del(&ioa_cfg->reset_cmd->queue);
4995 del_timer(&ioa_cfg->reset_cmd->timer);
4996 ipr_reset_ioa_job(ioa_cfg->reset_cmd);
4997 } else if ((int_reg & IPR_PCII_HRRQ_UPDATED) == int_reg) {
4998 if (ipr_debug && printk_ratelimit())
4999 dev_err(&ioa_cfg->pdev->dev,
5000 "Spurious interrupt detected. 0x%08X\n", int_reg);
5001 writel(IPR_PCII_HRRQ_UPDATED, ioa_cfg->regs.clr_interrupt_reg32);
5002 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg32);
5005 if (int_reg & IPR_PCII_IOA_UNIT_CHECKED)
5006 ioa_cfg->ioa_unit_checked = 1;
5008 dev_err(&ioa_cfg->pdev->dev,
5009 "Permanent IOA failure. 0x%08X\n", int_reg);
5011 if (WAIT_FOR_DUMP == ioa_cfg->sdt_state)
5012 ioa_cfg->sdt_state = GET_DUMP;
5014 ipr_mask_and_clear_interrupts(ioa_cfg, ~0);
5015 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
5022 * ipr_isr_eh - Interrupt service routine error handler
5023 * @ioa_cfg: ioa config struct
5024 * @msg: message to log
5029 static void ipr_isr_eh(struct ipr_ioa_cfg *ioa_cfg, char *msg)
5031 ioa_cfg->errors_logged++;
5032 dev_err(&ioa_cfg->pdev->dev, "%s\n", msg);
5034 if (WAIT_FOR_DUMP == ioa_cfg->sdt_state)
5035 ioa_cfg->sdt_state = GET_DUMP;
5037 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
5041 * ipr_isr - Interrupt service routine
5043 * @devp: pointer to ioa config struct
5046 * IRQ_NONE / IRQ_HANDLED
5048 static irqreturn_t ipr_isr(int irq, void *devp)
5050 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)devp;
5051 unsigned long lock_flags = 0;
5057 struct ipr_cmnd *ipr_cmd;
5058 irqreturn_t rc = IRQ_NONE;
5060 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
5062 /* If interrupts are disabled, ignore the interrupt */
5063 if (!ioa_cfg->allow_interrupts) {
5064 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
5071 while ((be32_to_cpu(*ioa_cfg->hrrq_curr) & IPR_HRRQ_TOGGLE_BIT) ==
5072 ioa_cfg->toggle_bit) {
5074 cmd_index = (be32_to_cpu(*ioa_cfg->hrrq_curr) &
5075 IPR_HRRQ_REQ_RESP_HANDLE_MASK) >> IPR_HRRQ_REQ_RESP_HANDLE_SHIFT;
5077 if (unlikely(cmd_index >= IPR_NUM_CMD_BLKS)) {
5078 ipr_isr_eh(ioa_cfg, "Invalid response handle from IOA");
5079 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
5083 ipr_cmd = ioa_cfg->ipr_cmnd_list[cmd_index];
5085 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
5087 ipr_trc_hook(ipr_cmd, IPR_TRACE_FINISH, ioasc);
5089 list_del(&ipr_cmd->queue);
5090 del_timer(&ipr_cmd->timer);
5091 ipr_cmd->done(ipr_cmd);
5095 if (ioa_cfg->hrrq_curr < ioa_cfg->hrrq_end) {
5096 ioa_cfg->hrrq_curr++;
5098 ioa_cfg->hrrq_curr = ioa_cfg->hrrq_start;
5099 ioa_cfg->toggle_bit ^= 1u;
5103 if (ipr_cmd != NULL) {
5104 /* Clear the PCI interrupt */
5106 writel(IPR_PCII_HRRQ_UPDATED, ioa_cfg->regs.clr_interrupt_reg32);
5107 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg32);
5108 } while (int_reg & IPR_PCII_HRRQ_UPDATED &&
5109 num_hrrq++ < IPR_MAX_HRRQ_RETRIES);
5111 if (int_reg & IPR_PCII_HRRQ_UPDATED) {
5112 ipr_isr_eh(ioa_cfg, "Error clearing HRRQ");
5113 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
5117 } else if (rc == IRQ_NONE && irq_none == 0) {
5118 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg32);
5124 if (unlikely(rc == IRQ_NONE))
5125 rc = ipr_handle_other_interrupt(ioa_cfg, int_reg);
5127 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
5132 * ipr_build_ioadl64 - Build a scatter/gather list and map the buffer
5133 * @ioa_cfg: ioa config struct
5134 * @ipr_cmd: ipr command struct
5137 * 0 on success / -1 on failure
5139 static int ipr_build_ioadl64(struct ipr_ioa_cfg *ioa_cfg,
5140 struct ipr_cmnd *ipr_cmd)
5143 struct scatterlist *sg;
5145 u32 ioadl_flags = 0;
5146 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd;
5147 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
5148 struct ipr_ioadl64_desc *ioadl64 = ipr_cmd->i.ioadl64;
5150 length = scsi_bufflen(scsi_cmd);
5154 nseg = scsi_dma_map(scsi_cmd);
5156 dev_err(&ioa_cfg->pdev->dev, "pci_map_sg failed!\n");
5160 ipr_cmd->dma_use_sg = nseg;
5162 ioarcb->data_transfer_length = cpu_to_be32(length);
5164 cpu_to_be32(sizeof(struct ipr_ioadl64_desc) * ipr_cmd->dma_use_sg);
5166 if (scsi_cmd->sc_data_direction == DMA_TO_DEVICE) {
5167 ioadl_flags = IPR_IOADL_FLAGS_WRITE;
5168 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ;
5169 } else if (scsi_cmd->sc_data_direction == DMA_FROM_DEVICE)
5170 ioadl_flags = IPR_IOADL_FLAGS_READ;
5172 scsi_for_each_sg(scsi_cmd, sg, ipr_cmd->dma_use_sg, i) {
5173 ioadl64[i].flags = cpu_to_be32(ioadl_flags);
5174 ioadl64[i].data_len = cpu_to_be32(sg_dma_len(sg));
5175 ioadl64[i].address = cpu_to_be64(sg_dma_address(sg));
5178 ioadl64[i-1].flags |= cpu_to_be32(IPR_IOADL_FLAGS_LAST);
5183 * ipr_build_ioadl - Build a scatter/gather list and map the buffer
5184 * @ioa_cfg: ioa config struct
5185 * @ipr_cmd: ipr command struct
5188 * 0 on success / -1 on failure
5190 static int ipr_build_ioadl(struct ipr_ioa_cfg *ioa_cfg,
5191 struct ipr_cmnd *ipr_cmd)
5194 struct scatterlist *sg;
5196 u32 ioadl_flags = 0;
5197 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd;
5198 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
5199 struct ipr_ioadl_desc *ioadl = ipr_cmd->i.ioadl;
5201 length = scsi_bufflen(scsi_cmd);
5205 nseg = scsi_dma_map(scsi_cmd);
5207 dev_err(&ioa_cfg->pdev->dev, "pci_map_sg failed!\n");
5211 ipr_cmd->dma_use_sg = nseg;
5213 if (scsi_cmd->sc_data_direction == DMA_TO_DEVICE) {
5214 ioadl_flags = IPR_IOADL_FLAGS_WRITE;
5215 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ;
5216 ioarcb->data_transfer_length = cpu_to_be32(length);
5218 cpu_to_be32(sizeof(struct ipr_ioadl_desc) * ipr_cmd->dma_use_sg);
5219 } else if (scsi_cmd->sc_data_direction == DMA_FROM_DEVICE) {
5220 ioadl_flags = IPR_IOADL_FLAGS_READ;
5221 ioarcb->read_data_transfer_length = cpu_to_be32(length);
5222 ioarcb->read_ioadl_len =
5223 cpu_to_be32(sizeof(struct ipr_ioadl_desc) * ipr_cmd->dma_use_sg);
5226 if (ipr_cmd->dma_use_sg <= ARRAY_SIZE(ioarcb->u.add_data.u.ioadl)) {
5227 ioadl = ioarcb->u.add_data.u.ioadl;
5228 ioarcb->write_ioadl_addr = cpu_to_be32((ipr_cmd->dma_addr) +
5229 offsetof(struct ipr_ioarcb, u.add_data));
5230 ioarcb->read_ioadl_addr = ioarcb->write_ioadl_addr;
5233 scsi_for_each_sg(scsi_cmd, sg, ipr_cmd->dma_use_sg, i) {
5234 ioadl[i].flags_and_data_len =
5235 cpu_to_be32(ioadl_flags | sg_dma_len(sg));
5236 ioadl[i].address = cpu_to_be32(sg_dma_address(sg));
5239 ioadl[i-1].flags_and_data_len |= cpu_to_be32(IPR_IOADL_FLAGS_LAST);
5244 * ipr_get_task_attributes - Translate SPI Q-Tag to task attributes
5245 * @scsi_cmd: scsi command struct
5250 static u8 ipr_get_task_attributes(struct scsi_cmnd *scsi_cmd)
5253 u8 rc = IPR_FLAGS_LO_UNTAGGED_TASK;
5255 if (scsi_populate_tag_msg(scsi_cmd, tag)) {
5257 case MSG_SIMPLE_TAG:
5258 rc = IPR_FLAGS_LO_SIMPLE_TASK;
5261 rc = IPR_FLAGS_LO_HEAD_OF_Q_TASK;
5263 case MSG_ORDERED_TAG:
5264 rc = IPR_FLAGS_LO_ORDERED_TASK;
5273 * ipr_erp_done - Process completion of ERP for a device
5274 * @ipr_cmd: ipr command struct
5276 * This function copies the sense buffer into the scsi_cmd
5277 * struct and pushes the scsi_done function.
5282 static void ipr_erp_done(struct ipr_cmnd *ipr_cmd)
5284 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd;
5285 struct ipr_resource_entry *res = scsi_cmd->device->hostdata;
5286 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
5287 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
5289 if (IPR_IOASC_SENSE_KEY(ioasc) > 0) {
5290 scsi_cmd->result |= (DID_ERROR << 16);
5291 scmd_printk(KERN_ERR, scsi_cmd,
5292 "Request Sense failed with IOASC: 0x%08X\n", ioasc);
5294 memcpy(scsi_cmd->sense_buffer, ipr_cmd->sense_buffer,
5295 SCSI_SENSE_BUFFERSIZE);
5299 if (!ipr_is_naca_model(res))
5300 res->needs_sync_complete = 1;
5303 scsi_dma_unmap(ipr_cmd->scsi_cmd);
5304 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
5305 scsi_cmd->scsi_done(scsi_cmd);
5309 * ipr_reinit_ipr_cmnd_for_erp - Re-initialize a cmnd block to be used for ERP
5310 * @ipr_cmd: ipr command struct
5315 static void ipr_reinit_ipr_cmnd_for_erp(struct ipr_cmnd *ipr_cmd)
5317 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
5318 struct ipr_ioasa *ioasa = &ipr_cmd->s.ioasa;
5319 dma_addr_t dma_addr = ipr_cmd->dma_addr;
5321 memset(&ioarcb->cmd_pkt, 0, sizeof(struct ipr_cmd_pkt));
5322 ioarcb->data_transfer_length = 0;
5323 ioarcb->read_data_transfer_length = 0;
5324 ioarcb->ioadl_len = 0;
5325 ioarcb->read_ioadl_len = 0;
5326 ioasa->hdr.ioasc = 0;
5327 ioasa->hdr.residual_data_len = 0;
5329 if (ipr_cmd->ioa_cfg->sis64)
5330 ioarcb->u.sis64_addr_data.data_ioadl_addr =
5331 cpu_to_be64(dma_addr + offsetof(struct ipr_cmnd, i.ioadl64));
5333 ioarcb->write_ioadl_addr =
5334 cpu_to_be32(dma_addr + offsetof(struct ipr_cmnd, i.ioadl));
5335 ioarcb->read_ioadl_addr = ioarcb->write_ioadl_addr;
5340 * ipr_erp_request_sense - Send request sense to a device
5341 * @ipr_cmd: ipr command struct
5343 * This function sends a request sense to a device as a result
5344 * of a check condition.
5349 static void ipr_erp_request_sense(struct ipr_cmnd *ipr_cmd)
5351 struct ipr_cmd_pkt *cmd_pkt = &ipr_cmd->ioarcb.cmd_pkt;
5352 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
5354 if (IPR_IOASC_SENSE_KEY(ioasc) > 0) {
5355 ipr_erp_done(ipr_cmd);
5359 ipr_reinit_ipr_cmnd_for_erp(ipr_cmd);
5361 cmd_pkt->request_type = IPR_RQTYPE_SCSICDB;
5362 cmd_pkt->cdb[0] = REQUEST_SENSE;
5363 cmd_pkt->cdb[4] = SCSI_SENSE_BUFFERSIZE;
5364 cmd_pkt->flags_hi |= IPR_FLAGS_HI_SYNC_OVERRIDE;
5365 cmd_pkt->flags_hi |= IPR_FLAGS_HI_NO_ULEN_CHK;
5366 cmd_pkt->timeout = cpu_to_be16(IPR_REQUEST_SENSE_TIMEOUT / HZ);
5368 ipr_init_ioadl(ipr_cmd, ipr_cmd->sense_buffer_dma,
5369 SCSI_SENSE_BUFFERSIZE, IPR_IOADL_FLAGS_READ_LAST);
5371 ipr_do_req(ipr_cmd, ipr_erp_done, ipr_timeout,
5372 IPR_REQUEST_SENSE_TIMEOUT * 2);
5376 * ipr_erp_cancel_all - Send cancel all to a device
5377 * @ipr_cmd: ipr command struct
5379 * This function sends a cancel all to a device to clear the
5380 * queue. If we are running TCQ on the device, QERR is set to 1,
5381 * which means all outstanding ops have been dropped on the floor.
5382 * Cancel all will return them to us.
5387 static void ipr_erp_cancel_all(struct ipr_cmnd *ipr_cmd)
5389 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd;
5390 struct ipr_resource_entry *res = scsi_cmd->device->hostdata;
5391 struct ipr_cmd_pkt *cmd_pkt;
5395 ipr_reinit_ipr_cmnd_for_erp(ipr_cmd);
5397 if (!scsi_get_tag_type(scsi_cmd->device)) {
5398 ipr_erp_request_sense(ipr_cmd);
5402 cmd_pkt = &ipr_cmd->ioarcb.cmd_pkt;
5403 cmd_pkt->request_type = IPR_RQTYPE_IOACMD;
5404 cmd_pkt->cdb[0] = IPR_CANCEL_ALL_REQUESTS;
5406 ipr_do_req(ipr_cmd, ipr_erp_request_sense, ipr_timeout,
5407 IPR_CANCEL_ALL_TIMEOUT);
5411 * ipr_dump_ioasa - Dump contents of IOASA
5412 * @ioa_cfg: ioa config struct
5413 * @ipr_cmd: ipr command struct
5414 * @res: resource entry struct
5416 * This function is invoked by the interrupt handler when ops
5417 * fail. It will log the IOASA if appropriate. Only called
5423 static void ipr_dump_ioasa(struct ipr_ioa_cfg *ioa_cfg,
5424 struct ipr_cmnd *ipr_cmd, struct ipr_resource_entry *res)
5428 u32 ioasc, fd_ioasc;
5429 struct ipr_ioasa *ioasa = &ipr_cmd->s.ioasa;
5430 __be32 *ioasa_data = (__be32 *)ioasa;
5433 ioasc = be32_to_cpu(ioasa->hdr.ioasc) & IPR_IOASC_IOASC_MASK;
5434 fd_ioasc = be32_to_cpu(ioasa->hdr.fd_ioasc) & IPR_IOASC_IOASC_MASK;
5439 if (ioa_cfg->log_level < IPR_DEFAULT_LOG_LEVEL)
5442 if (ioasc == IPR_IOASC_BUS_WAS_RESET && fd_ioasc)
5443 error_index = ipr_get_error(fd_ioasc);
5445 error_index = ipr_get_error(ioasc);
5447 if (ioa_cfg->log_level < IPR_MAX_LOG_LEVEL) {
5448 /* Don't log an error if the IOA already logged one */
5449 if (ioasa->hdr.ilid != 0)
5452 if (!ipr_is_gscsi(res))
5455 if (ipr_error_table[error_index].log_ioasa == 0)
5459 ipr_res_err(ioa_cfg, res, "%s\n", ipr_error_table[error_index].error);
5461 data_len = be16_to_cpu(ioasa->hdr.ret_stat_len);
5462 if (ioa_cfg->sis64 && sizeof(struct ipr_ioasa64) < data_len)
5463 data_len = sizeof(struct ipr_ioasa64);
5464 else if (!ioa_cfg->sis64 && sizeof(struct ipr_ioasa) < data_len)
5465 data_len = sizeof(struct ipr_ioasa);
5467 ipr_err("IOASA Dump:\n");
5469 for (i = 0; i < data_len / 4; i += 4) {
5470 ipr_err("%08X: %08X %08X %08X %08X\n", i*4,
5471 be32_to_cpu(ioasa_data[i]),
5472 be32_to_cpu(ioasa_data[i+1]),
5473 be32_to_cpu(ioasa_data[i+2]),
5474 be32_to_cpu(ioasa_data[i+3]));
5479 * ipr_gen_sense - Generate SCSI sense data from an IOASA
5481 * @sense_buf: sense data buffer
5486 static void ipr_gen_sense(struct ipr_cmnd *ipr_cmd)
5489 u8 *sense_buf = ipr_cmd->scsi_cmd->sense_buffer;
5490 struct ipr_resource_entry *res = ipr_cmd->scsi_cmd->device->hostdata;
5491 struct ipr_ioasa *ioasa = &ipr_cmd->s.ioasa;
5492 u32 ioasc = be32_to_cpu(ioasa->hdr.ioasc);
5494 memset(sense_buf, 0, SCSI_SENSE_BUFFERSIZE);
5496 if (ioasc >= IPR_FIRST_DRIVER_IOASC)
5499 ipr_cmd->scsi_cmd->result = SAM_STAT_CHECK_CONDITION;
5501 if (ipr_is_vset_device(res) &&
5502 ioasc == IPR_IOASC_MED_DO_NOT_REALLOC &&
5503 ioasa->u.vset.failing_lba_hi != 0) {
5504 sense_buf[0] = 0x72;
5505 sense_buf[1] = IPR_IOASC_SENSE_KEY(ioasc);
5506 sense_buf[2] = IPR_IOASC_SENSE_CODE(ioasc);
5507 sense_buf[3] = IPR_IOASC_SENSE_QUAL(ioasc);
5511 sense_buf[9] = 0x0A;
5512 sense_buf[10] = 0x80;
5514 failing_lba = be32_to_cpu(ioasa->u.vset.failing_lba_hi);
5516 sense_buf[12] = (failing_lba & 0xff000000) >> 24;
5517 sense_buf[13] = (failing_lba & 0x00ff0000) >> 16;
5518 sense_buf[14] = (failing_lba & 0x0000ff00) >> 8;
5519 sense_buf[15] = failing_lba & 0x000000ff;
5521 failing_lba = be32_to_cpu(ioasa->u.vset.failing_lba_lo);
5523 sense_buf[16] = (failing_lba & 0xff000000) >> 24;
5524 sense_buf[17] = (failing_lba & 0x00ff0000) >> 16;
5525 sense_buf[18] = (failing_lba & 0x0000ff00) >> 8;
5526 sense_buf[19] = failing_lba & 0x000000ff;
5528 sense_buf[0] = 0x70;
5529 sense_buf[2] = IPR_IOASC_SENSE_KEY(ioasc);
5530 sense_buf[12] = IPR_IOASC_SENSE_CODE(ioasc);
5531 sense_buf[13] = IPR_IOASC_SENSE_QUAL(ioasc);
5533 /* Illegal request */
5534 if ((IPR_IOASC_SENSE_KEY(ioasc) == 0x05) &&
5535 (be32_to_cpu(ioasa->hdr.ioasc_specific) & IPR_FIELD_POINTER_VALID)) {
5536 sense_buf[7] = 10; /* additional length */
5538 /* IOARCB was in error */
5539 if (IPR_IOASC_SENSE_CODE(ioasc) == 0x24)
5540 sense_buf[15] = 0xC0;
5541 else /* Parameter data was invalid */
5542 sense_buf[15] = 0x80;
5545 ((IPR_FIELD_POINTER_MASK &
5546 be32_to_cpu(ioasa->hdr.ioasc_specific)) >> 8) & 0xff;
5548 (IPR_FIELD_POINTER_MASK &
5549 be32_to_cpu(ioasa->hdr.ioasc_specific)) & 0xff;
5551 if (ioasc == IPR_IOASC_MED_DO_NOT_REALLOC) {
5552 if (ipr_is_vset_device(res))
5553 failing_lba = be32_to_cpu(ioasa->u.vset.failing_lba_lo);
5555 failing_lba = be32_to_cpu(ioasa->u.dasd.failing_lba);
5557 sense_buf[0] |= 0x80; /* Or in the Valid bit */
5558 sense_buf[3] = (failing_lba & 0xff000000) >> 24;
5559 sense_buf[4] = (failing_lba & 0x00ff0000) >> 16;
5560 sense_buf[5] = (failing_lba & 0x0000ff00) >> 8;
5561 sense_buf[6] = failing_lba & 0x000000ff;
5564 sense_buf[7] = 6; /* additional length */
5570 * ipr_get_autosense - Copy autosense data to sense buffer
5571 * @ipr_cmd: ipr command struct
5573 * This function copies the autosense buffer to the buffer
5574 * in the scsi_cmd, if there is autosense available.
5577 * 1 if autosense was available / 0 if not
5579 static int ipr_get_autosense(struct ipr_cmnd *ipr_cmd)
5581 struct ipr_ioasa *ioasa = &ipr_cmd->s.ioasa;
5582 struct ipr_ioasa64 *ioasa64 = &ipr_cmd->s.ioasa64;
5584 if ((be32_to_cpu(ioasa->hdr.ioasc_specific) & IPR_AUTOSENSE_VALID) == 0)
5587 if (ipr_cmd->ioa_cfg->sis64)
5588 memcpy(ipr_cmd->scsi_cmd->sense_buffer, ioasa64->auto_sense.data,
5589 min_t(u16, be16_to_cpu(ioasa64->auto_sense.auto_sense_len),
5590 SCSI_SENSE_BUFFERSIZE));
5592 memcpy(ipr_cmd->scsi_cmd->sense_buffer, ioasa->auto_sense.data,
5593 min_t(u16, be16_to_cpu(ioasa->auto_sense.auto_sense_len),
5594 SCSI_SENSE_BUFFERSIZE));
5599 * ipr_erp_start - Process an error response for a SCSI op
5600 * @ioa_cfg: ioa config struct
5601 * @ipr_cmd: ipr command struct
5603 * This function determines whether or not to initiate ERP
5604 * on the affected device.
5609 static void ipr_erp_start(struct ipr_ioa_cfg *ioa_cfg,
5610 struct ipr_cmnd *ipr_cmd)
5612 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd;
5613 struct ipr_resource_entry *res = scsi_cmd->device->hostdata;
5614 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
5615 u32 masked_ioasc = ioasc & IPR_IOASC_IOASC_MASK;
5618 ipr_scsi_eh_done(ipr_cmd);
5622 if (!ipr_is_gscsi(res) && masked_ioasc != IPR_IOASC_HW_DEV_BUS_STATUS)
5623 ipr_gen_sense(ipr_cmd);
5625 ipr_dump_ioasa(ioa_cfg, ipr_cmd, res);
5627 switch (masked_ioasc) {
5628 case IPR_IOASC_ABORTED_CMD_TERM_BY_HOST:
5629 if (ipr_is_naca_model(res))
5630 scsi_cmd->result |= (DID_ABORT << 16);
5632 scsi_cmd->result |= (DID_IMM_RETRY << 16);
5634 case IPR_IOASC_IR_RESOURCE_HANDLE:
5635 case IPR_IOASC_IR_NO_CMDS_TO_2ND_IOA:
5636 scsi_cmd->result |= (DID_NO_CONNECT << 16);
5638 case IPR_IOASC_HW_SEL_TIMEOUT:
5639 scsi_cmd->result |= (DID_NO_CONNECT << 16);
5640 if (!ipr_is_naca_model(res))
5641 res->needs_sync_complete = 1;
5643 case IPR_IOASC_SYNC_REQUIRED:
5645 res->needs_sync_complete = 1;
5646 scsi_cmd->result |= (DID_IMM_RETRY << 16);
5648 case IPR_IOASC_MED_DO_NOT_REALLOC: /* prevent retries */
5649 case IPR_IOASA_IR_DUAL_IOA_DISABLED:
5650 scsi_cmd->result |= (DID_PASSTHROUGH << 16);
5652 case IPR_IOASC_BUS_WAS_RESET:
5653 case IPR_IOASC_BUS_WAS_RESET_BY_OTHER:
5655 * Report the bus reset and ask for a retry. The device
5656 * will give CC/UA the next command.
5658 if (!res->resetting_device)
5659 scsi_report_bus_reset(ioa_cfg->host, scsi_cmd->device->channel);
5660 scsi_cmd->result |= (DID_ERROR << 16);
5661 if (!ipr_is_naca_model(res))
5662 res->needs_sync_complete = 1;
5664 case IPR_IOASC_HW_DEV_BUS_STATUS:
5665 scsi_cmd->result |= IPR_IOASC_SENSE_STATUS(ioasc);
5666 if (IPR_IOASC_SENSE_STATUS(ioasc) == SAM_STAT_CHECK_CONDITION) {
5667 if (!ipr_get_autosense(ipr_cmd)) {
5668 if (!ipr_is_naca_model(res)) {
5669 ipr_erp_cancel_all(ipr_cmd);
5674 if (!ipr_is_naca_model(res))
5675 res->needs_sync_complete = 1;
5677 case IPR_IOASC_NR_INIT_CMD_REQUIRED:
5680 if (IPR_IOASC_SENSE_KEY(ioasc) > RECOVERED_ERROR)
5681 scsi_cmd->result |= (DID_ERROR << 16);
5682 if (!ipr_is_vset_device(res) && !ipr_is_naca_model(res))
5683 res->needs_sync_complete = 1;
5687 scsi_dma_unmap(ipr_cmd->scsi_cmd);
5688 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
5689 scsi_cmd->scsi_done(scsi_cmd);
5693 * ipr_scsi_done - mid-layer done function
5694 * @ipr_cmd: ipr command struct
5696 * This function is invoked by the interrupt handler for
5697 * ops generated by the SCSI mid-layer
5702 static void ipr_scsi_done(struct ipr_cmnd *ipr_cmd)
5704 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
5705 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd;
5706 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
5708 scsi_set_resid(scsi_cmd, be32_to_cpu(ipr_cmd->s.ioasa.hdr.residual_data_len));
5710 if (likely(IPR_IOASC_SENSE_KEY(ioasc) == 0)) {
5711 scsi_dma_unmap(ipr_cmd->scsi_cmd);
5712 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
5713 scsi_cmd->scsi_done(scsi_cmd);
5715 ipr_erp_start(ioa_cfg, ipr_cmd);
5719 * ipr_queuecommand - Queue a mid-layer request
5720 * @scsi_cmd: scsi command struct
5721 * @done: done function
5723 * This function queues a request generated by the mid-layer.
5727 * SCSI_MLQUEUE_DEVICE_BUSY if device is busy
5728 * SCSI_MLQUEUE_HOST_BUSY if host is busy
5730 static int ipr_queuecommand_lck(struct scsi_cmnd *scsi_cmd,
5731 void (*done) (struct scsi_cmnd *))
5733 struct ipr_ioa_cfg *ioa_cfg;
5734 struct ipr_resource_entry *res;
5735 struct ipr_ioarcb *ioarcb;
5736 struct ipr_cmnd *ipr_cmd;
5739 scsi_cmd->scsi_done = done;
5740 ioa_cfg = (struct ipr_ioa_cfg *)scsi_cmd->device->host->hostdata;
5741 res = scsi_cmd->device->hostdata;
5742 scsi_cmd->result = (DID_OK << 16);
5745 * We are currently blocking all devices due to a host reset
5746 * We have told the host to stop giving us new requests, but
5747 * ERP ops don't count. FIXME
5749 if (unlikely(!ioa_cfg->allow_cmds && !ioa_cfg->ioa_is_dead))
5750 return SCSI_MLQUEUE_HOST_BUSY;
5753 * FIXME - Create scsi_set_host_offline interface
5754 * and the ioa_is_dead check can be removed
5756 if (unlikely(ioa_cfg->ioa_is_dead || !res)) {
5757 memset(scsi_cmd->sense_buffer, 0, SCSI_SENSE_BUFFERSIZE);
5758 scsi_cmd->result = (DID_NO_CONNECT << 16);
5759 scsi_cmd->scsi_done(scsi_cmd);
5763 if (ipr_is_gata(res) && res->sata_port)
5764 return ata_sas_queuecmd(scsi_cmd, res->sata_port->ap);
5766 ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg);
5767 ioarcb = &ipr_cmd->ioarcb;
5768 list_add_tail(&ipr_cmd->queue, &ioa_cfg->pending_q);
5770 memcpy(ioarcb->cmd_pkt.cdb, scsi_cmd->cmnd, scsi_cmd->cmd_len);
5771 ipr_cmd->scsi_cmd = scsi_cmd;
5772 ioarcb->res_handle = res->res_handle;
5773 ipr_cmd->done = ipr_scsi_done;
5774 ipr_trc_hook(ipr_cmd, IPR_TRACE_START, IPR_GET_RES_PHYS_LOC(res));
5776 if (ipr_is_gscsi(res) || ipr_is_vset_device(res)) {
5777 if (scsi_cmd->underflow == 0)
5778 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_NO_ULEN_CHK;
5780 if (res->needs_sync_complete) {
5781 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_SYNC_COMPLETE;
5782 res->needs_sync_complete = 0;
5785 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_NO_LINK_DESC;
5786 if (ipr_is_gscsi(res))
5787 ioarcb->cmd_pkt.flags_lo |= IPR_FLAGS_LO_DELAY_AFTER_RST;
5788 ioarcb->cmd_pkt.flags_lo |= IPR_FLAGS_LO_ALIGNED_BFR;
5789 ioarcb->cmd_pkt.flags_lo |= ipr_get_task_attributes(scsi_cmd);
5792 if (scsi_cmd->cmnd[0] >= 0xC0 &&
5793 (!ipr_is_gscsi(res) || scsi_cmd->cmnd[0] == IPR_QUERY_RSRC_STATE))
5794 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_IOACMD;
5796 if (likely(rc == 0)) {
5798 rc = ipr_build_ioadl64(ioa_cfg, ipr_cmd);
5800 rc = ipr_build_ioadl(ioa_cfg, ipr_cmd);
5803 if (likely(rc == 0)) {
5805 ipr_send_command(ipr_cmd);
5807 list_move_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
5808 return SCSI_MLQUEUE_HOST_BUSY;
5814 static DEF_SCSI_QCMD(ipr_queuecommand)
5817 * ipr_ioctl - IOCTL handler
5818 * @sdev: scsi device struct
5823 * 0 on success / other on failure
5825 static int ipr_ioctl(struct scsi_device *sdev, int cmd, void __user *arg)
5827 struct ipr_resource_entry *res;
5829 res = (struct ipr_resource_entry *)sdev->hostdata;
5830 if (res && ipr_is_gata(res)) {
5831 if (cmd == HDIO_GET_IDENTITY)
5833 return ata_sas_scsi_ioctl(res->sata_port->ap, sdev, cmd, arg);
5840 * ipr_info - Get information about the card/driver
5841 * @scsi_host: scsi host struct
5844 * pointer to buffer with description string
5846 static const char * ipr_ioa_info(struct Scsi_Host *host)
5848 static char buffer[512];
5849 struct ipr_ioa_cfg *ioa_cfg;
5850 unsigned long lock_flags = 0;
5852 ioa_cfg = (struct ipr_ioa_cfg *) host->hostdata;
5854 spin_lock_irqsave(host->host_lock, lock_flags);
5855 sprintf(buffer, "IBM %X Storage Adapter", ioa_cfg->type);
5856 spin_unlock_irqrestore(host->host_lock, lock_flags);
5861 static struct scsi_host_template driver_template = {
5862 .module = THIS_MODULE,
5864 .info = ipr_ioa_info,
5866 .queuecommand = ipr_queuecommand,
5867 .eh_abort_handler = ipr_eh_abort,
5868 .eh_device_reset_handler = ipr_eh_dev_reset,
5869 .eh_host_reset_handler = ipr_eh_host_reset,
5870 .slave_alloc = ipr_slave_alloc,
5871 .slave_configure = ipr_slave_configure,
5872 .slave_destroy = ipr_slave_destroy,
5873 .target_alloc = ipr_target_alloc,
5874 .target_destroy = ipr_target_destroy,
5875 .change_queue_depth = ipr_change_queue_depth,
5876 .change_queue_type = ipr_change_queue_type,
5877 .bios_param = ipr_biosparam,
5878 .can_queue = IPR_MAX_COMMANDS,
5880 .sg_tablesize = IPR_MAX_SGLIST,
5881 .max_sectors = IPR_IOA_MAX_SECTORS,
5882 .cmd_per_lun = IPR_MAX_CMD_PER_LUN,
5883 .use_clustering = ENABLE_CLUSTERING,
5884 .shost_attrs = ipr_ioa_attrs,
5885 .sdev_attrs = ipr_dev_attrs,
5886 .proc_name = IPR_NAME
5890 * ipr_ata_phy_reset - libata phy_reset handler
5891 * @ap: ata port to reset
5894 static void ipr_ata_phy_reset(struct ata_port *ap)
5896 unsigned long flags;
5897 struct ipr_sata_port *sata_port = ap->private_data;
5898 struct ipr_resource_entry *res = sata_port->res;
5899 struct ipr_ioa_cfg *ioa_cfg = sata_port->ioa_cfg;
5903 spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
5904 while(ioa_cfg->in_reset_reload) {
5905 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
5906 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
5907 spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
5910 if (!ioa_cfg->allow_cmds)
5913 rc = ipr_device_reset(ioa_cfg, res);
5916 ap->link.device[0].class = ATA_DEV_NONE;
5920 ap->link.device[0].class = res->ata_class;
5921 if (ap->link.device[0].class == ATA_DEV_UNKNOWN)
5922 ap->link.device[0].class = ATA_DEV_NONE;
5925 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
5930 * ipr_ata_post_internal - Cleanup after an internal command
5931 * @qc: ATA queued command
5936 static void ipr_ata_post_internal(struct ata_queued_cmd *qc)
5938 struct ipr_sata_port *sata_port = qc->ap->private_data;
5939 struct ipr_ioa_cfg *ioa_cfg = sata_port->ioa_cfg;
5940 struct ipr_cmnd *ipr_cmd;
5941 unsigned long flags;
5943 spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
5944 while(ioa_cfg->in_reset_reload) {
5945 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
5946 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
5947 spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
5950 list_for_each_entry(ipr_cmd, &ioa_cfg->pending_q, queue) {
5951 if (ipr_cmd->qc == qc) {
5952 ipr_device_reset(ioa_cfg, sata_port->res);
5956 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
5960 * ipr_copy_sata_tf - Copy a SATA taskfile to an IOA data structure
5961 * @regs: destination
5962 * @tf: source ATA taskfile
5967 static void ipr_copy_sata_tf(struct ipr_ioarcb_ata_regs *regs,
5968 struct ata_taskfile *tf)
5970 regs->feature = tf->feature;
5971 regs->nsect = tf->nsect;
5972 regs->lbal = tf->lbal;
5973 regs->lbam = tf->lbam;
5974 regs->lbah = tf->lbah;
5975 regs->device = tf->device;
5976 regs->command = tf->command;
5977 regs->hob_feature = tf->hob_feature;
5978 regs->hob_nsect = tf->hob_nsect;
5979 regs->hob_lbal = tf->hob_lbal;
5980 regs->hob_lbam = tf->hob_lbam;
5981 regs->hob_lbah = tf->hob_lbah;
5982 regs->ctl = tf->ctl;
5986 * ipr_sata_done - done function for SATA commands
5987 * @ipr_cmd: ipr command struct
5989 * This function is invoked by the interrupt handler for
5990 * ops generated by the SCSI mid-layer to SATA devices
5995 static void ipr_sata_done(struct ipr_cmnd *ipr_cmd)
5997 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
5998 struct ata_queued_cmd *qc = ipr_cmd->qc;
5999 struct ipr_sata_port *sata_port = qc->ap->private_data;
6000 struct ipr_resource_entry *res = sata_port->res;
6001 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
6003 if (ipr_cmd->ioa_cfg->sis64)
6004 memcpy(&sata_port->ioasa, &ipr_cmd->s.ioasa64.u.gata,
6005 sizeof(struct ipr_ioasa_gata));
6007 memcpy(&sata_port->ioasa, &ipr_cmd->s.ioasa.u.gata,
6008 sizeof(struct ipr_ioasa_gata));
6009 ipr_dump_ioasa(ioa_cfg, ipr_cmd, res);
6011 if (be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc_specific) & IPR_ATA_DEVICE_WAS_RESET)
6012 scsi_report_device_reset(ioa_cfg->host, res->bus, res->target);
6014 if (IPR_IOASC_SENSE_KEY(ioasc) > RECOVERED_ERROR)
6015 qc->err_mask |= __ac_err_mask(sata_port->ioasa.status);
6017 qc->err_mask |= ac_err_mask(sata_port->ioasa.status);
6018 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
6019 ata_qc_complete(qc);
6023 * ipr_build_ata_ioadl64 - Build an ATA scatter/gather list
6024 * @ipr_cmd: ipr command struct
6025 * @qc: ATA queued command
6028 static void ipr_build_ata_ioadl64(struct ipr_cmnd *ipr_cmd,
6029 struct ata_queued_cmd *qc)
6031 u32 ioadl_flags = 0;
6032 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
6033 struct ipr_ioadl64_desc *ioadl64 = ipr_cmd->i.ioadl64;
6034 struct ipr_ioadl64_desc *last_ioadl64 = NULL;
6035 int len = qc->nbytes;
6036 struct scatterlist *sg;
6038 dma_addr_t dma_addr = ipr_cmd->dma_addr;
6043 if (qc->dma_dir == DMA_TO_DEVICE) {
6044 ioadl_flags = IPR_IOADL_FLAGS_WRITE;
6045 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ;
6046 } else if (qc->dma_dir == DMA_FROM_DEVICE)
6047 ioadl_flags = IPR_IOADL_FLAGS_READ;
6049 ioarcb->data_transfer_length = cpu_to_be32(len);
6051 cpu_to_be32(sizeof(struct ipr_ioadl64_desc) * ipr_cmd->dma_use_sg);
6052 ioarcb->u.sis64_addr_data.data_ioadl_addr =
6053 cpu_to_be64(dma_addr + offsetof(struct ipr_cmnd, i.ata_ioadl));
6055 for_each_sg(qc->sg, sg, qc->n_elem, si) {
6056 ioadl64->flags = cpu_to_be32(ioadl_flags);
6057 ioadl64->data_len = cpu_to_be32(sg_dma_len(sg));
6058 ioadl64->address = cpu_to_be64(sg_dma_address(sg));
6060 last_ioadl64 = ioadl64;
6064 if (likely(last_ioadl64))
6065 last_ioadl64->flags |= cpu_to_be32(IPR_IOADL_FLAGS_LAST);
6069 * ipr_build_ata_ioadl - Build an ATA scatter/gather list
6070 * @ipr_cmd: ipr command struct
6071 * @qc: ATA queued command
6074 static void ipr_build_ata_ioadl(struct ipr_cmnd *ipr_cmd,
6075 struct ata_queued_cmd *qc)
6077 u32 ioadl_flags = 0;
6078 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
6079 struct ipr_ioadl_desc *ioadl = ipr_cmd->i.ioadl;
6080 struct ipr_ioadl_desc *last_ioadl = NULL;
6081 int len = qc->nbytes;
6082 struct scatterlist *sg;
6088 if (qc->dma_dir == DMA_TO_DEVICE) {
6089 ioadl_flags = IPR_IOADL_FLAGS_WRITE;
6090 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ;
6091 ioarcb->data_transfer_length = cpu_to_be32(len);
6093 cpu_to_be32(sizeof(struct ipr_ioadl_desc) * ipr_cmd->dma_use_sg);
6094 } else if (qc->dma_dir == DMA_FROM_DEVICE) {
6095 ioadl_flags = IPR_IOADL_FLAGS_READ;
6096 ioarcb->read_data_transfer_length = cpu_to_be32(len);
6097 ioarcb->read_ioadl_len =
6098 cpu_to_be32(sizeof(struct ipr_ioadl_desc) * ipr_cmd->dma_use_sg);
6101 for_each_sg(qc->sg, sg, qc->n_elem, si) {
6102 ioadl->flags_and_data_len = cpu_to_be32(ioadl_flags | sg_dma_len(sg));
6103 ioadl->address = cpu_to_be32(sg_dma_address(sg));
6109 if (likely(last_ioadl))
6110 last_ioadl->flags_and_data_len |= cpu_to_be32(IPR_IOADL_FLAGS_LAST);
6114 * ipr_qc_issue - Issue a SATA qc to a device
6115 * @qc: queued command
6120 static unsigned int ipr_qc_issue(struct ata_queued_cmd *qc)
6122 struct ata_port *ap = qc->ap;
6123 struct ipr_sata_port *sata_port = ap->private_data;
6124 struct ipr_resource_entry *res = sata_port->res;
6125 struct ipr_ioa_cfg *ioa_cfg = sata_port->ioa_cfg;
6126 struct ipr_cmnd *ipr_cmd;
6127 struct ipr_ioarcb *ioarcb;
6128 struct ipr_ioarcb_ata_regs *regs;
6130 if (unlikely(!ioa_cfg->allow_cmds || ioa_cfg->ioa_is_dead))
6131 return AC_ERR_SYSTEM;
6133 ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg);
6134 ioarcb = &ipr_cmd->ioarcb;
6136 if (ioa_cfg->sis64) {
6137 regs = &ipr_cmd->i.ata_ioadl.regs;
6138 ioarcb->add_cmd_parms_offset = cpu_to_be16(sizeof(*ioarcb));
6140 regs = &ioarcb->u.add_data.u.regs;
6142 memset(regs, 0, sizeof(*regs));
6143 ioarcb->add_cmd_parms_len = cpu_to_be16(sizeof(*regs));
6145 list_add_tail(&ipr_cmd->queue, &ioa_cfg->pending_q);
6147 ipr_cmd->done = ipr_sata_done;
6148 ipr_cmd->ioarcb.res_handle = res->res_handle;
6149 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_ATA_PASSTHRU;
6150 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_NO_LINK_DESC;
6151 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_NO_ULEN_CHK;
6152 ipr_cmd->dma_use_sg = qc->n_elem;
6155 ipr_build_ata_ioadl64(ipr_cmd, qc);
6157 ipr_build_ata_ioadl(ipr_cmd, qc);
6159 regs->flags |= IPR_ATA_FLAG_STATUS_ON_GOOD_COMPLETION;
6160 ipr_copy_sata_tf(regs, &qc->tf);
6161 memcpy(ioarcb->cmd_pkt.cdb, qc->cdb, IPR_MAX_CDB_LEN);
6162 ipr_trc_hook(ipr_cmd, IPR_TRACE_START, IPR_GET_RES_PHYS_LOC(res));
6164 switch (qc->tf.protocol) {
6165 case ATA_PROT_NODATA:
6170 regs->flags |= IPR_ATA_FLAG_XFER_TYPE_DMA;
6173 case ATAPI_PROT_PIO:
6174 case ATAPI_PROT_NODATA:
6175 regs->flags |= IPR_ATA_FLAG_PACKET_CMD;
6178 case ATAPI_PROT_DMA:
6179 regs->flags |= IPR_ATA_FLAG_PACKET_CMD;
6180 regs->flags |= IPR_ATA_FLAG_XFER_TYPE_DMA;
6185 return AC_ERR_INVALID;
6190 ipr_send_command(ipr_cmd);
6196 * ipr_qc_fill_rtf - Read result TF
6197 * @qc: ATA queued command
6202 static bool ipr_qc_fill_rtf(struct ata_queued_cmd *qc)
6204 struct ipr_sata_port *sata_port = qc->ap->private_data;
6205 struct ipr_ioasa_gata *g = &sata_port->ioasa;
6206 struct ata_taskfile *tf = &qc->result_tf;
6208 tf->feature = g->error;
6209 tf->nsect = g->nsect;
6213 tf->device = g->device;
6214 tf->command = g->status;
6215 tf->hob_nsect = g->hob_nsect;
6216 tf->hob_lbal = g->hob_lbal;
6217 tf->hob_lbam = g->hob_lbam;
6218 tf->hob_lbah = g->hob_lbah;
6219 tf->ctl = g->alt_status;
6224 static struct ata_port_operations ipr_sata_ops = {
6225 .phy_reset = ipr_ata_phy_reset,
6226 .hardreset = ipr_sata_reset,
6227 .post_internal_cmd = ipr_ata_post_internal,
6228 .qc_prep = ata_noop_qc_prep,
6229 .qc_issue = ipr_qc_issue,
6230 .qc_fill_rtf = ipr_qc_fill_rtf,
6231 .port_start = ata_sas_port_start,
6232 .port_stop = ata_sas_port_stop
6235 static struct ata_port_info sata_port_info = {
6236 .flags = ATA_FLAG_SATA | ATA_FLAG_PIO_DMA,
6237 .pio_mask = ATA_PIO4_ONLY,
6238 .mwdma_mask = ATA_MWDMA2,
6239 .udma_mask = ATA_UDMA6,
6240 .port_ops = &ipr_sata_ops
6243 #ifdef CONFIG_PPC_PSERIES
6244 static const u16 ipr_blocked_processors[] = {
6256 * ipr_invalid_adapter - Determine if this adapter is supported on this hardware
6257 * @ioa_cfg: ioa cfg struct
6259 * Adapters that use Gemstone revision < 3.1 do not work reliably on
6260 * certain pSeries hardware. This function determines if the given
6261 * adapter is in one of these confgurations or not.
6264 * 1 if adapter is not supported / 0 if adapter is supported
6266 static int ipr_invalid_adapter(struct ipr_ioa_cfg *ioa_cfg)
6270 if ((ioa_cfg->type == 0x5702) && (ioa_cfg->pdev->revision < 4)) {
6271 for (i = 0; i < ARRAY_SIZE(ipr_blocked_processors); i++){
6272 if (__is_processor(ipr_blocked_processors[i]))
6279 #define ipr_invalid_adapter(ioa_cfg) 0
6283 * ipr_ioa_bringdown_done - IOA bring down completion.
6284 * @ipr_cmd: ipr command struct
6286 * This function processes the completion of an adapter bring down.
6287 * It wakes any reset sleepers.
6292 static int ipr_ioa_bringdown_done(struct ipr_cmnd *ipr_cmd)
6294 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6297 ioa_cfg->in_reset_reload = 0;
6298 ioa_cfg->reset_retries = 0;
6299 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
6300 wake_up_all(&ioa_cfg->reset_wait_q);
6302 spin_unlock_irq(ioa_cfg->host->host_lock);
6303 scsi_unblock_requests(ioa_cfg->host);
6304 spin_lock_irq(ioa_cfg->host->host_lock);
6307 return IPR_RC_JOB_RETURN;
6311 * ipr_ioa_reset_done - IOA reset completion.
6312 * @ipr_cmd: ipr command struct
6314 * This function processes the completion of an adapter reset.
6315 * It schedules any necessary mid-layer add/removes and
6316 * wakes any reset sleepers.
6321 static int ipr_ioa_reset_done(struct ipr_cmnd *ipr_cmd)
6323 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6324 struct ipr_resource_entry *res;
6325 struct ipr_hostrcb *hostrcb, *temp;
6329 ioa_cfg->in_reset_reload = 0;
6330 ioa_cfg->allow_cmds = 1;
6331 ioa_cfg->reset_cmd = NULL;
6332 ioa_cfg->doorbell |= IPR_RUNTIME_RESET;
6334 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) {
6335 if (ioa_cfg->allow_ml_add_del && (res->add_to_ml || res->del_from_ml)) {
6340 schedule_work(&ioa_cfg->work_q);
6342 list_for_each_entry_safe(hostrcb, temp, &ioa_cfg->hostrcb_free_q, queue) {
6343 list_del(&hostrcb->queue);
6344 if (i++ < IPR_NUM_LOG_HCAMS)
6345 ipr_send_hcam(ioa_cfg, IPR_HCAM_CDB_OP_CODE_LOG_DATA, hostrcb);
6347 ipr_send_hcam(ioa_cfg, IPR_HCAM_CDB_OP_CODE_CONFIG_CHANGE, hostrcb);
6350 scsi_report_bus_reset(ioa_cfg->host, IPR_VSET_BUS);
6351 dev_info(&ioa_cfg->pdev->dev, "IOA initialized.\n");
6353 ioa_cfg->reset_retries = 0;
6354 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
6355 wake_up_all(&ioa_cfg->reset_wait_q);
6357 spin_unlock(ioa_cfg->host->host_lock);
6358 scsi_unblock_requests(ioa_cfg->host);
6359 spin_lock(ioa_cfg->host->host_lock);
6361 if (!ioa_cfg->allow_cmds)
6362 scsi_block_requests(ioa_cfg->host);
6365 return IPR_RC_JOB_RETURN;
6369 * ipr_set_sup_dev_dflt - Initialize a Set Supported Device buffer
6370 * @supported_dev: supported device struct
6371 * @vpids: vendor product id struct
6376 static void ipr_set_sup_dev_dflt(struct ipr_supported_device *supported_dev,
6377 struct ipr_std_inq_vpids *vpids)
6379 memset(supported_dev, 0, sizeof(struct ipr_supported_device));
6380 memcpy(&supported_dev->vpids, vpids, sizeof(struct ipr_std_inq_vpids));
6381 supported_dev->num_records = 1;
6382 supported_dev->data_length =
6383 cpu_to_be16(sizeof(struct ipr_supported_device));
6384 supported_dev->reserved = 0;
6388 * ipr_set_supported_devs - Send Set Supported Devices for a device
6389 * @ipr_cmd: ipr command struct
6391 * This function sends a Set Supported Devices to the adapter
6394 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
6396 static int ipr_set_supported_devs(struct ipr_cmnd *ipr_cmd)
6398 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6399 struct ipr_supported_device *supp_dev = &ioa_cfg->vpd_cbs->supp_dev;
6400 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
6401 struct ipr_resource_entry *res = ipr_cmd->u.res;
6403 ipr_cmd->job_step = ipr_ioa_reset_done;
6405 list_for_each_entry_continue(res, &ioa_cfg->used_res_q, queue) {
6406 if (!ipr_is_scsi_disk(res))
6409 ipr_cmd->u.res = res;
6410 ipr_set_sup_dev_dflt(supp_dev, &res->std_inq_data.vpids);
6412 ioarcb->res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE);
6413 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ;
6414 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_IOACMD;
6416 ioarcb->cmd_pkt.cdb[0] = IPR_SET_SUPPORTED_DEVICES;
6417 ioarcb->cmd_pkt.cdb[1] = IPR_SET_ALL_SUPPORTED_DEVICES;
6418 ioarcb->cmd_pkt.cdb[7] = (sizeof(struct ipr_supported_device) >> 8) & 0xff;
6419 ioarcb->cmd_pkt.cdb[8] = sizeof(struct ipr_supported_device) & 0xff;
6421 ipr_init_ioadl(ipr_cmd,
6422 ioa_cfg->vpd_cbs_dma +
6423 offsetof(struct ipr_misc_cbs, supp_dev),
6424 sizeof(struct ipr_supported_device),
6425 IPR_IOADL_FLAGS_WRITE_LAST);
6427 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout,
6428 IPR_SET_SUP_DEVICE_TIMEOUT);
6430 if (!ioa_cfg->sis64)
6431 ipr_cmd->job_step = ipr_set_supported_devs;
6432 return IPR_RC_JOB_RETURN;
6435 return IPR_RC_JOB_CONTINUE;
6439 * ipr_get_mode_page - Locate specified mode page
6440 * @mode_pages: mode page buffer
6441 * @page_code: page code to find
6442 * @len: minimum required length for mode page
6445 * pointer to mode page / NULL on failure
6447 static void *ipr_get_mode_page(struct ipr_mode_pages *mode_pages,
6448 u32 page_code, u32 len)
6450 struct ipr_mode_page_hdr *mode_hdr;
6454 if (!mode_pages || (mode_pages->hdr.length == 0))
6457 length = (mode_pages->hdr.length + 1) - 4 - mode_pages->hdr.block_desc_len;
6458 mode_hdr = (struct ipr_mode_page_hdr *)
6459 (mode_pages->data + mode_pages->hdr.block_desc_len);
6462 if (IPR_GET_MODE_PAGE_CODE(mode_hdr) == page_code) {
6463 if (mode_hdr->page_length >= (len - sizeof(struct ipr_mode_page_hdr)))
6467 page_length = (sizeof(struct ipr_mode_page_hdr) +
6468 mode_hdr->page_length);
6469 length -= page_length;
6470 mode_hdr = (struct ipr_mode_page_hdr *)
6471 ((unsigned long)mode_hdr + page_length);
6478 * ipr_check_term_power - Check for term power errors
6479 * @ioa_cfg: ioa config struct
6480 * @mode_pages: IOAFP mode pages buffer
6482 * Check the IOAFP's mode page 28 for term power errors
6487 static void ipr_check_term_power(struct ipr_ioa_cfg *ioa_cfg,
6488 struct ipr_mode_pages *mode_pages)
6492 struct ipr_dev_bus_entry *bus;
6493 struct ipr_mode_page28 *mode_page;
6495 mode_page = ipr_get_mode_page(mode_pages, 0x28,
6496 sizeof(struct ipr_mode_page28));
6498 entry_length = mode_page->entry_length;
6500 bus = mode_page->bus;
6502 for (i = 0; i < mode_page->num_entries; i++) {
6503 if (bus->flags & IPR_SCSI_ATTR_NO_TERM_PWR) {
6504 dev_err(&ioa_cfg->pdev->dev,
6505 "Term power is absent on scsi bus %d\n",
6509 bus = (struct ipr_dev_bus_entry *)((char *)bus + entry_length);
6514 * ipr_scsi_bus_speed_limit - Limit the SCSI speed based on SES table
6515 * @ioa_cfg: ioa config struct
6517 * Looks through the config table checking for SES devices. If
6518 * the SES device is in the SES table indicating a maximum SCSI
6519 * bus speed, the speed is limited for the bus.
6524 static void ipr_scsi_bus_speed_limit(struct ipr_ioa_cfg *ioa_cfg)
6529 for (i = 0; i < IPR_MAX_NUM_BUSES; i++) {
6530 max_xfer_rate = ipr_get_max_scsi_speed(ioa_cfg, i,
6531 ioa_cfg->bus_attr[i].bus_width);
6533 if (max_xfer_rate < ioa_cfg->bus_attr[i].max_xfer_rate)
6534 ioa_cfg->bus_attr[i].max_xfer_rate = max_xfer_rate;
6539 * ipr_modify_ioafp_mode_page_28 - Modify IOAFP Mode Page 28
6540 * @ioa_cfg: ioa config struct
6541 * @mode_pages: mode page 28 buffer
6543 * Updates mode page 28 based on driver configuration
6548 static void ipr_modify_ioafp_mode_page_28(struct ipr_ioa_cfg *ioa_cfg,
6549 struct ipr_mode_pages *mode_pages)
6551 int i, entry_length;
6552 struct ipr_dev_bus_entry *bus;
6553 struct ipr_bus_attributes *bus_attr;
6554 struct ipr_mode_page28 *mode_page;
6556 mode_page = ipr_get_mode_page(mode_pages, 0x28,
6557 sizeof(struct ipr_mode_page28));
6559 entry_length = mode_page->entry_length;
6561 /* Loop for each device bus entry */
6562 for (i = 0, bus = mode_page->bus;
6563 i < mode_page->num_entries;
6564 i++, bus = (struct ipr_dev_bus_entry *)((u8 *)bus + entry_length)) {
6565 if (bus->res_addr.bus > IPR_MAX_NUM_BUSES) {
6566 dev_err(&ioa_cfg->pdev->dev,
6567 "Invalid resource address reported: 0x%08X\n",
6568 IPR_GET_PHYS_LOC(bus->res_addr));
6572 bus_attr = &ioa_cfg->bus_attr[i];
6573 bus->extended_reset_delay = IPR_EXTENDED_RESET_DELAY;
6574 bus->bus_width = bus_attr->bus_width;
6575 bus->max_xfer_rate = cpu_to_be32(bus_attr->max_xfer_rate);
6576 bus->flags &= ~IPR_SCSI_ATTR_QAS_MASK;
6577 if (bus_attr->qas_enabled)
6578 bus->flags |= IPR_SCSI_ATTR_ENABLE_QAS;
6580 bus->flags |= IPR_SCSI_ATTR_DISABLE_QAS;
6585 * ipr_build_mode_select - Build a mode select command
6586 * @ipr_cmd: ipr command struct
6587 * @res_handle: resource handle to send command to
6588 * @parm: Byte 2 of Mode Sense command
6589 * @dma_addr: DMA buffer address
6590 * @xfer_len: data transfer length
6595 static void ipr_build_mode_select(struct ipr_cmnd *ipr_cmd,
6596 __be32 res_handle, u8 parm,
6597 dma_addr_t dma_addr, u8 xfer_len)
6599 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
6601 ioarcb->res_handle = res_handle;
6602 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_SCSICDB;
6603 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ;
6604 ioarcb->cmd_pkt.cdb[0] = MODE_SELECT;
6605 ioarcb->cmd_pkt.cdb[1] = parm;
6606 ioarcb->cmd_pkt.cdb[4] = xfer_len;
6608 ipr_init_ioadl(ipr_cmd, dma_addr, xfer_len, IPR_IOADL_FLAGS_WRITE_LAST);
6612 * ipr_ioafp_mode_select_page28 - Issue Mode Select Page 28 to IOA
6613 * @ipr_cmd: ipr command struct
6615 * This function sets up the SCSI bus attributes and sends
6616 * a Mode Select for Page 28 to activate them.
6621 static int ipr_ioafp_mode_select_page28(struct ipr_cmnd *ipr_cmd)
6623 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6624 struct ipr_mode_pages *mode_pages = &ioa_cfg->vpd_cbs->mode_pages;
6628 ipr_scsi_bus_speed_limit(ioa_cfg);
6629 ipr_check_term_power(ioa_cfg, mode_pages);
6630 ipr_modify_ioafp_mode_page_28(ioa_cfg, mode_pages);
6631 length = mode_pages->hdr.length + 1;
6632 mode_pages->hdr.length = 0;
6634 ipr_build_mode_select(ipr_cmd, cpu_to_be32(IPR_IOA_RES_HANDLE), 0x11,
6635 ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, mode_pages),
6638 ipr_cmd->job_step = ipr_set_supported_devs;
6639 ipr_cmd->u.res = list_entry(ioa_cfg->used_res_q.next,
6640 struct ipr_resource_entry, queue);
6641 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT);
6644 return IPR_RC_JOB_RETURN;
6648 * ipr_build_mode_sense - Builds a mode sense command
6649 * @ipr_cmd: ipr command struct
6650 * @res: resource entry struct
6651 * @parm: Byte 2 of mode sense command
6652 * @dma_addr: DMA address of mode sense buffer
6653 * @xfer_len: Size of DMA buffer
6658 static void ipr_build_mode_sense(struct ipr_cmnd *ipr_cmd,
6660 u8 parm, dma_addr_t dma_addr, u8 xfer_len)
6662 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
6664 ioarcb->res_handle = res_handle;
6665 ioarcb->cmd_pkt.cdb[0] = MODE_SENSE;
6666 ioarcb->cmd_pkt.cdb[2] = parm;
6667 ioarcb->cmd_pkt.cdb[4] = xfer_len;
6668 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_SCSICDB;
6670 ipr_init_ioadl(ipr_cmd, dma_addr, xfer_len, IPR_IOADL_FLAGS_READ_LAST);
6674 * ipr_reset_cmd_failed - Handle failure of IOA reset command
6675 * @ipr_cmd: ipr command struct
6677 * This function handles the failure of an IOA bringup command.
6682 static int ipr_reset_cmd_failed(struct ipr_cmnd *ipr_cmd)
6684 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6685 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
6687 dev_err(&ioa_cfg->pdev->dev,
6688 "0x%02X failed with IOASC: 0x%08X\n",
6689 ipr_cmd->ioarcb.cmd_pkt.cdb[0], ioasc);
6691 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
6692 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
6693 return IPR_RC_JOB_RETURN;
6697 * ipr_reset_mode_sense_failed - Handle failure of IOAFP mode sense
6698 * @ipr_cmd: ipr command struct
6700 * This function handles the failure of a Mode Sense to the IOAFP.
6701 * Some adapters do not handle all mode pages.
6704 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
6706 static int ipr_reset_mode_sense_failed(struct ipr_cmnd *ipr_cmd)
6708 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6709 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
6711 if (ioasc == IPR_IOASC_IR_INVALID_REQ_TYPE_OR_PKT) {
6712 ipr_cmd->job_step = ipr_set_supported_devs;
6713 ipr_cmd->u.res = list_entry(ioa_cfg->used_res_q.next,
6714 struct ipr_resource_entry, queue);
6715 return IPR_RC_JOB_CONTINUE;
6718 return ipr_reset_cmd_failed(ipr_cmd);
6722 * ipr_ioafp_mode_sense_page28 - Issue Mode Sense Page 28 to IOA
6723 * @ipr_cmd: ipr command struct
6725 * This function send a Page 28 mode sense to the IOA to
6726 * retrieve SCSI bus attributes.
6731 static int ipr_ioafp_mode_sense_page28(struct ipr_cmnd *ipr_cmd)
6733 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6736 ipr_build_mode_sense(ipr_cmd, cpu_to_be32(IPR_IOA_RES_HANDLE),
6737 0x28, ioa_cfg->vpd_cbs_dma +
6738 offsetof(struct ipr_misc_cbs, mode_pages),
6739 sizeof(struct ipr_mode_pages));
6741 ipr_cmd->job_step = ipr_ioafp_mode_select_page28;
6742 ipr_cmd->job_step_failed = ipr_reset_mode_sense_failed;
6744 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT);
6747 return IPR_RC_JOB_RETURN;
6751 * ipr_ioafp_mode_select_page24 - Issue Mode Select to IOA
6752 * @ipr_cmd: ipr command struct
6754 * This function enables dual IOA RAID support if possible.
6759 static int ipr_ioafp_mode_select_page24(struct ipr_cmnd *ipr_cmd)
6761 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6762 struct ipr_mode_pages *mode_pages = &ioa_cfg->vpd_cbs->mode_pages;
6763 struct ipr_mode_page24 *mode_page;
6767 mode_page = ipr_get_mode_page(mode_pages, 0x24,
6768 sizeof(struct ipr_mode_page24));
6771 mode_page->flags |= IPR_ENABLE_DUAL_IOA_AF;
6773 length = mode_pages->hdr.length + 1;
6774 mode_pages->hdr.length = 0;
6776 ipr_build_mode_select(ipr_cmd, cpu_to_be32(IPR_IOA_RES_HANDLE), 0x11,
6777 ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, mode_pages),
6780 ipr_cmd->job_step = ipr_ioafp_mode_sense_page28;
6781 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT);
6784 return IPR_RC_JOB_RETURN;
6788 * ipr_reset_mode_sense_page24_failed - Handle failure of IOAFP mode sense
6789 * @ipr_cmd: ipr command struct
6791 * This function handles the failure of a Mode Sense to the IOAFP.
6792 * Some adapters do not handle all mode pages.
6795 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
6797 static int ipr_reset_mode_sense_page24_failed(struct ipr_cmnd *ipr_cmd)
6799 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
6801 if (ioasc == IPR_IOASC_IR_INVALID_REQ_TYPE_OR_PKT) {
6802 ipr_cmd->job_step = ipr_ioafp_mode_sense_page28;
6803 return IPR_RC_JOB_CONTINUE;
6806 return ipr_reset_cmd_failed(ipr_cmd);
6810 * ipr_ioafp_mode_sense_page24 - Issue Page 24 Mode Sense to IOA
6811 * @ipr_cmd: ipr command struct
6813 * This function send a mode sense to the IOA to retrieve
6814 * the IOA Advanced Function Control mode page.
6819 static int ipr_ioafp_mode_sense_page24(struct ipr_cmnd *ipr_cmd)
6821 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6824 ipr_build_mode_sense(ipr_cmd, cpu_to_be32(IPR_IOA_RES_HANDLE),
6825 0x24, ioa_cfg->vpd_cbs_dma +
6826 offsetof(struct ipr_misc_cbs, mode_pages),
6827 sizeof(struct ipr_mode_pages));
6829 ipr_cmd->job_step = ipr_ioafp_mode_select_page24;
6830 ipr_cmd->job_step_failed = ipr_reset_mode_sense_page24_failed;
6832 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT);
6835 return IPR_RC_JOB_RETURN;
6839 * ipr_init_res_table - Initialize the resource table
6840 * @ipr_cmd: ipr command struct
6842 * This function looks through the existing resource table, comparing
6843 * it with the config table. This function will take care of old/new
6844 * devices and schedule adding/removing them from the mid-layer
6848 * IPR_RC_JOB_CONTINUE
6850 static int ipr_init_res_table(struct ipr_cmnd *ipr_cmd)
6852 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6853 struct ipr_resource_entry *res, *temp;
6854 struct ipr_config_table_entry_wrapper cfgtew;
6855 int entries, found, flag, i;
6860 flag = ioa_cfg->u.cfg_table64->hdr64.flags;
6862 flag = ioa_cfg->u.cfg_table->hdr.flags;
6864 if (flag & IPR_UCODE_DOWNLOAD_REQ)
6865 dev_err(&ioa_cfg->pdev->dev, "Microcode download required\n");
6867 list_for_each_entry_safe(res, temp, &ioa_cfg->used_res_q, queue)
6868 list_move_tail(&res->queue, &old_res);
6871 entries = be16_to_cpu(ioa_cfg->u.cfg_table64->hdr64.num_entries);
6873 entries = ioa_cfg->u.cfg_table->hdr.num_entries;
6875 for (i = 0; i < entries; i++) {
6877 cfgtew.u.cfgte64 = &ioa_cfg->u.cfg_table64->dev[i];
6879 cfgtew.u.cfgte = &ioa_cfg->u.cfg_table->dev[i];
6882 list_for_each_entry_safe(res, temp, &old_res, queue) {
6883 if (ipr_is_same_device(res, &cfgtew)) {
6884 list_move_tail(&res->queue, &ioa_cfg->used_res_q);
6891 if (list_empty(&ioa_cfg->free_res_q)) {
6892 dev_err(&ioa_cfg->pdev->dev, "Too many devices attached\n");
6897 res = list_entry(ioa_cfg->free_res_q.next,
6898 struct ipr_resource_entry, queue);
6899 list_move_tail(&res->queue, &ioa_cfg->used_res_q);
6900 ipr_init_res_entry(res, &cfgtew);
6902 } else if (res->sdev && (ipr_is_vset_device(res) || ipr_is_scsi_disk(res)))
6903 res->sdev->allow_restart = 1;
6906 ipr_update_res_entry(res, &cfgtew);
6909 list_for_each_entry_safe(res, temp, &old_res, queue) {
6911 res->del_from_ml = 1;
6912 res->res_handle = IPR_INVALID_RES_HANDLE;
6913 list_move_tail(&res->queue, &ioa_cfg->used_res_q);
6917 list_for_each_entry_safe(res, temp, &old_res, queue) {
6918 ipr_clear_res_target(res);
6919 list_move_tail(&res->queue, &ioa_cfg->free_res_q);
6922 if (ioa_cfg->dual_raid && ipr_dual_ioa_raid)
6923 ipr_cmd->job_step = ipr_ioafp_mode_sense_page24;
6925 ipr_cmd->job_step = ipr_ioafp_mode_sense_page28;
6928 return IPR_RC_JOB_CONTINUE;
6932 * ipr_ioafp_query_ioa_cfg - Send a Query IOA Config to the adapter.
6933 * @ipr_cmd: ipr command struct
6935 * This function sends a Query IOA Configuration command
6936 * to the adapter to retrieve the IOA configuration table.
6941 static int ipr_ioafp_query_ioa_cfg(struct ipr_cmnd *ipr_cmd)
6943 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6944 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
6945 struct ipr_inquiry_page3 *ucode_vpd = &ioa_cfg->vpd_cbs->page3_data;
6946 struct ipr_inquiry_cap *cap = &ioa_cfg->vpd_cbs->cap;
6949 if (cap->cap & IPR_CAP_DUAL_IOA_RAID)
6950 ioa_cfg->dual_raid = 1;
6951 dev_info(&ioa_cfg->pdev->dev, "Adapter firmware version: %02X%02X%02X%02X\n",
6952 ucode_vpd->major_release, ucode_vpd->card_type,
6953 ucode_vpd->minor_release[0], ucode_vpd->minor_release[1]);
6954 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_IOACMD;
6955 ioarcb->res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE);
6957 ioarcb->cmd_pkt.cdb[0] = IPR_QUERY_IOA_CONFIG;
6958 ioarcb->cmd_pkt.cdb[6] = (ioa_cfg->cfg_table_size >> 16) & 0xff;
6959 ioarcb->cmd_pkt.cdb[7] = (ioa_cfg->cfg_table_size >> 8) & 0xff;
6960 ioarcb->cmd_pkt.cdb[8] = ioa_cfg->cfg_table_size & 0xff;
6962 ipr_init_ioadl(ipr_cmd, ioa_cfg->cfg_table_dma, ioa_cfg->cfg_table_size,
6963 IPR_IOADL_FLAGS_READ_LAST);
6965 ipr_cmd->job_step = ipr_init_res_table;
6967 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT);
6970 return IPR_RC_JOB_RETURN;
6974 * ipr_ioafp_inquiry - Send an Inquiry to the adapter.
6975 * @ipr_cmd: ipr command struct
6977 * This utility function sends an inquiry to the adapter.
6982 static void ipr_ioafp_inquiry(struct ipr_cmnd *ipr_cmd, u8 flags, u8 page,
6983 dma_addr_t dma_addr, u8 xfer_len)
6985 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
6988 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_SCSICDB;
6989 ioarcb->res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE);
6991 ioarcb->cmd_pkt.cdb[0] = INQUIRY;
6992 ioarcb->cmd_pkt.cdb[1] = flags;
6993 ioarcb->cmd_pkt.cdb[2] = page;
6994 ioarcb->cmd_pkt.cdb[4] = xfer_len;
6996 ipr_init_ioadl(ipr_cmd, dma_addr, xfer_len, IPR_IOADL_FLAGS_READ_LAST);
6998 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT);
7003 * ipr_inquiry_page_supported - Is the given inquiry page supported
7004 * @page0: inquiry page 0 buffer
7007 * This function determines if the specified inquiry page is supported.
7010 * 1 if page is supported / 0 if not
7012 static int ipr_inquiry_page_supported(struct ipr_inquiry_page0 *page0, u8 page)
7016 for (i = 0; i < min_t(u8, page0->len, IPR_INQUIRY_PAGE0_ENTRIES); i++)
7017 if (page0->page[i] == page)
7024 * ipr_ioafp_cap_inquiry - Send a Page 0xD0 Inquiry to the adapter.
7025 * @ipr_cmd: ipr command struct
7027 * This function sends a Page 0xD0 inquiry to the adapter
7028 * to retrieve adapter capabilities.
7031 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
7033 static int ipr_ioafp_cap_inquiry(struct ipr_cmnd *ipr_cmd)
7035 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7036 struct ipr_inquiry_page0 *page0 = &ioa_cfg->vpd_cbs->page0_data;
7037 struct ipr_inquiry_cap *cap = &ioa_cfg->vpd_cbs->cap;
7040 ipr_cmd->job_step = ipr_ioafp_query_ioa_cfg;
7041 memset(cap, 0, sizeof(*cap));
7043 if (ipr_inquiry_page_supported(page0, 0xD0)) {
7044 ipr_ioafp_inquiry(ipr_cmd, 1, 0xD0,
7045 ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, cap),
7046 sizeof(struct ipr_inquiry_cap));
7047 return IPR_RC_JOB_RETURN;
7051 return IPR_RC_JOB_CONTINUE;
7055 * ipr_ioafp_page3_inquiry - Send a Page 3 Inquiry to the adapter.
7056 * @ipr_cmd: ipr command struct
7058 * This function sends a Page 3 inquiry to the adapter
7059 * to retrieve software VPD information.
7062 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
7064 static int ipr_ioafp_page3_inquiry(struct ipr_cmnd *ipr_cmd)
7066 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7070 ipr_cmd->job_step = ipr_ioafp_cap_inquiry;
7072 ipr_ioafp_inquiry(ipr_cmd, 1, 3,
7073 ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, page3_data),
7074 sizeof(struct ipr_inquiry_page3));
7077 return IPR_RC_JOB_RETURN;
7081 * ipr_ioafp_page0_inquiry - Send a Page 0 Inquiry to the adapter.
7082 * @ipr_cmd: ipr command struct
7084 * This function sends a Page 0 inquiry to the adapter
7085 * to retrieve supported inquiry pages.
7088 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
7090 static int ipr_ioafp_page0_inquiry(struct ipr_cmnd *ipr_cmd)
7092 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7097 /* Grab the type out of the VPD and store it away */
7098 memcpy(type, ioa_cfg->vpd_cbs->ioa_vpd.std_inq_data.vpids.product_id, 4);
7100 ioa_cfg->type = simple_strtoul((char *)type, NULL, 16);
7102 ipr_cmd->job_step = ipr_ioafp_page3_inquiry;
7104 ipr_ioafp_inquiry(ipr_cmd, 1, 0,
7105 ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, page0_data),
7106 sizeof(struct ipr_inquiry_page0));
7109 return IPR_RC_JOB_RETURN;
7113 * ipr_ioafp_std_inquiry - Send a Standard Inquiry to the adapter.
7114 * @ipr_cmd: ipr command struct
7116 * This function sends a standard inquiry to the adapter.
7121 static int ipr_ioafp_std_inquiry(struct ipr_cmnd *ipr_cmd)
7123 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7126 ipr_cmd->job_step = ipr_ioafp_page0_inquiry;
7128 ipr_ioafp_inquiry(ipr_cmd, 0, 0,
7129 ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, ioa_vpd),
7130 sizeof(struct ipr_ioa_vpd));
7133 return IPR_RC_JOB_RETURN;
7137 * ipr_ioafp_identify_hrrq - Send Identify Host RRQ.
7138 * @ipr_cmd: ipr command struct
7140 * This function send an Identify Host Request Response Queue
7141 * command to establish the HRRQ with the adapter.
7146 static int ipr_ioafp_identify_hrrq(struct ipr_cmnd *ipr_cmd)
7148 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7149 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
7152 dev_info(&ioa_cfg->pdev->dev, "Starting IOA initialization sequence.\n");
7154 ioarcb->cmd_pkt.cdb[0] = IPR_ID_HOST_RR_Q;
7155 ioarcb->res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE);
7157 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_IOACMD;
7159 ioarcb->cmd_pkt.cdb[1] = 0x1;
7160 ioarcb->cmd_pkt.cdb[2] =
7161 ((u64) ioa_cfg->host_rrq_dma >> 24) & 0xff;
7162 ioarcb->cmd_pkt.cdb[3] =
7163 ((u64) ioa_cfg->host_rrq_dma >> 16) & 0xff;
7164 ioarcb->cmd_pkt.cdb[4] =
7165 ((u64) ioa_cfg->host_rrq_dma >> 8) & 0xff;
7166 ioarcb->cmd_pkt.cdb[5] =
7167 ((u64) ioa_cfg->host_rrq_dma) & 0xff;
7168 ioarcb->cmd_pkt.cdb[7] =
7169 ((sizeof(u32) * IPR_NUM_CMD_BLKS) >> 8) & 0xff;
7170 ioarcb->cmd_pkt.cdb[8] =
7171 (sizeof(u32) * IPR_NUM_CMD_BLKS) & 0xff;
7173 if (ioa_cfg->sis64) {
7174 ioarcb->cmd_pkt.cdb[10] =
7175 ((u64) ioa_cfg->host_rrq_dma >> 56) & 0xff;
7176 ioarcb->cmd_pkt.cdb[11] =
7177 ((u64) ioa_cfg->host_rrq_dma >> 48) & 0xff;
7178 ioarcb->cmd_pkt.cdb[12] =
7179 ((u64) ioa_cfg->host_rrq_dma >> 40) & 0xff;
7180 ioarcb->cmd_pkt.cdb[13] =
7181 ((u64) ioa_cfg->host_rrq_dma >> 32) & 0xff;
7184 ipr_cmd->job_step = ipr_ioafp_std_inquiry;
7186 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT);
7189 return IPR_RC_JOB_RETURN;
7193 * ipr_reset_timer_done - Adapter reset timer function
7194 * @ipr_cmd: ipr command struct
7196 * Description: This function is used in adapter reset processing
7197 * for timing events. If the reset_cmd pointer in the IOA
7198 * config struct is not this adapter's we are doing nested
7199 * resets and fail_all_ops will take care of freeing the
7205 static void ipr_reset_timer_done(struct ipr_cmnd *ipr_cmd)
7207 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7208 unsigned long lock_flags = 0;
7210 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
7212 if (ioa_cfg->reset_cmd == ipr_cmd) {
7213 list_del(&ipr_cmd->queue);
7214 ipr_cmd->done(ipr_cmd);
7217 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
7221 * ipr_reset_start_timer - Start a timer for adapter reset job
7222 * @ipr_cmd: ipr command struct
7223 * @timeout: timeout value
7225 * Description: This function is used in adapter reset processing
7226 * for timing events. If the reset_cmd pointer in the IOA
7227 * config struct is not this adapter's we are doing nested
7228 * resets and fail_all_ops will take care of freeing the
7234 static void ipr_reset_start_timer(struct ipr_cmnd *ipr_cmd,
7235 unsigned long timeout)
7237 list_add_tail(&ipr_cmd->queue, &ipr_cmd->ioa_cfg->pending_q);
7238 ipr_cmd->done = ipr_reset_ioa_job;
7240 ipr_cmd->timer.data = (unsigned long) ipr_cmd;
7241 ipr_cmd->timer.expires = jiffies + timeout;
7242 ipr_cmd->timer.function = (void (*)(unsigned long))ipr_reset_timer_done;
7243 add_timer(&ipr_cmd->timer);
7247 * ipr_init_ioa_mem - Initialize ioa_cfg control block
7248 * @ioa_cfg: ioa cfg struct
7253 static void ipr_init_ioa_mem(struct ipr_ioa_cfg *ioa_cfg)
7255 memset(ioa_cfg->host_rrq, 0, sizeof(u32) * IPR_NUM_CMD_BLKS);
7257 /* Initialize Host RRQ pointers */
7258 ioa_cfg->hrrq_start = ioa_cfg->host_rrq;
7259 ioa_cfg->hrrq_end = &ioa_cfg->host_rrq[IPR_NUM_CMD_BLKS - 1];
7260 ioa_cfg->hrrq_curr = ioa_cfg->hrrq_start;
7261 ioa_cfg->toggle_bit = 1;
7263 /* Zero out config table */
7264 memset(ioa_cfg->u.cfg_table, 0, ioa_cfg->cfg_table_size);
7268 * ipr_reset_next_stage - Process IPL stage change based on feedback register.
7269 * @ipr_cmd: ipr command struct
7272 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
7274 static int ipr_reset_next_stage(struct ipr_cmnd *ipr_cmd)
7276 unsigned long stage, stage_time;
7278 volatile u32 int_reg;
7279 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7282 feedback = readl(ioa_cfg->regs.init_feedback_reg);
7283 stage = feedback & IPR_IPL_INIT_STAGE_MASK;
7284 stage_time = feedback & IPR_IPL_INIT_STAGE_TIME_MASK;
7286 ipr_dbg("IPL stage = 0x%lx, IPL stage time = %ld\n", stage, stage_time);
7288 /* sanity check the stage_time value */
7289 if (stage_time == 0)
7290 stage_time = IPR_IPL_INIT_DEFAULT_STAGE_TIME;
7291 else if (stage_time < IPR_IPL_INIT_MIN_STAGE_TIME)
7292 stage_time = IPR_IPL_INIT_MIN_STAGE_TIME;
7293 else if (stage_time > IPR_LONG_OPERATIONAL_TIMEOUT)
7294 stage_time = IPR_LONG_OPERATIONAL_TIMEOUT;
7296 if (stage == IPR_IPL_INIT_STAGE_UNKNOWN) {
7297 writel(IPR_PCII_IPL_STAGE_CHANGE, ioa_cfg->regs.set_interrupt_mask_reg);
7298 int_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg);
7299 stage_time = ioa_cfg->transop_timeout;
7300 ipr_cmd->job_step = ipr_ioafp_identify_hrrq;
7301 } else if (stage == IPR_IPL_INIT_STAGE_TRANSOP) {
7302 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg32);
7303 if (int_reg & IPR_PCII_IOA_TRANS_TO_OPER) {
7304 ipr_cmd->job_step = ipr_ioafp_identify_hrrq;
7305 maskval = IPR_PCII_IPL_STAGE_CHANGE;
7306 maskval = (maskval << 32) | IPR_PCII_IOA_TRANS_TO_OPER;
7307 writeq(maskval, ioa_cfg->regs.set_interrupt_mask_reg);
7308 int_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg);
7309 return IPR_RC_JOB_CONTINUE;
7313 ipr_cmd->timer.data = (unsigned long) ipr_cmd;
7314 ipr_cmd->timer.expires = jiffies + stage_time * HZ;
7315 ipr_cmd->timer.function = (void (*)(unsigned long))ipr_oper_timeout;
7316 ipr_cmd->done = ipr_reset_ioa_job;
7317 add_timer(&ipr_cmd->timer);
7318 list_add_tail(&ipr_cmd->queue, &ioa_cfg->pending_q);
7320 return IPR_RC_JOB_RETURN;
7324 * ipr_reset_enable_ioa - Enable the IOA following a reset.
7325 * @ipr_cmd: ipr command struct
7327 * This function reinitializes some control blocks and
7328 * enables destructive diagnostics on the adapter.
7333 static int ipr_reset_enable_ioa(struct ipr_cmnd *ipr_cmd)
7335 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7336 volatile u32 int_reg;
7337 volatile u64 maskval;
7340 ipr_cmd->job_step = ipr_ioafp_identify_hrrq;
7341 ipr_init_ioa_mem(ioa_cfg);
7343 ioa_cfg->allow_interrupts = 1;
7344 if (ioa_cfg->sis64) {
7345 /* Set the adapter to the correct endian mode. */
7346 writel(IPR_ENDIAN_SWAP_KEY, ioa_cfg->regs.endian_swap_reg);
7347 int_reg = readl(ioa_cfg->regs.endian_swap_reg);
7350 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg32);
7352 if (int_reg & IPR_PCII_IOA_TRANS_TO_OPER) {
7353 writel((IPR_PCII_ERROR_INTERRUPTS | IPR_PCII_HRRQ_UPDATED),
7354 ioa_cfg->regs.clr_interrupt_mask_reg32);
7355 int_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg);
7356 return IPR_RC_JOB_CONTINUE;
7359 /* Enable destructive diagnostics on IOA */
7360 writel(ioa_cfg->doorbell, ioa_cfg->regs.set_uproc_interrupt_reg32);
7362 if (ioa_cfg->sis64) {
7363 maskval = IPR_PCII_IPL_STAGE_CHANGE;
7364 maskval = (maskval << 32) | IPR_PCII_OPER_INTERRUPTS;
7365 writeq(maskval, ioa_cfg->regs.clr_interrupt_mask_reg);
7367 writel(IPR_PCII_OPER_INTERRUPTS, ioa_cfg->regs.clr_interrupt_mask_reg32);
7369 int_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg);
7371 dev_info(&ioa_cfg->pdev->dev, "Initializing IOA.\n");
7373 if (ioa_cfg->sis64) {
7374 ipr_cmd->job_step = ipr_reset_next_stage;
7375 return IPR_RC_JOB_CONTINUE;
7378 ipr_cmd->timer.data = (unsigned long) ipr_cmd;
7379 ipr_cmd->timer.expires = jiffies + (ioa_cfg->transop_timeout * HZ);
7380 ipr_cmd->timer.function = (void (*)(unsigned long))ipr_oper_timeout;
7381 ipr_cmd->done = ipr_reset_ioa_job;
7382 add_timer(&ipr_cmd->timer);
7383 list_add_tail(&ipr_cmd->queue, &ioa_cfg->pending_q);
7386 return IPR_RC_JOB_RETURN;
7390 * ipr_reset_wait_for_dump - Wait for a dump to timeout.
7391 * @ipr_cmd: ipr command struct
7393 * This function is invoked when an adapter dump has run out
7394 * of processing time.
7397 * IPR_RC_JOB_CONTINUE
7399 static int ipr_reset_wait_for_dump(struct ipr_cmnd *ipr_cmd)
7401 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7403 if (ioa_cfg->sdt_state == GET_DUMP)
7404 ioa_cfg->sdt_state = ABORT_DUMP;
7406 ipr_cmd->job_step = ipr_reset_alert;
7408 return IPR_RC_JOB_CONTINUE;
7412 * ipr_unit_check_no_data - Log a unit check/no data error log
7413 * @ioa_cfg: ioa config struct
7415 * Logs an error indicating the adapter unit checked, but for some
7416 * reason, we were unable to fetch the unit check buffer.
7421 static void ipr_unit_check_no_data(struct ipr_ioa_cfg *ioa_cfg)
7423 ioa_cfg->errors_logged++;
7424 dev_err(&ioa_cfg->pdev->dev, "IOA unit check with no data\n");
7428 * ipr_get_unit_check_buffer - Get the unit check buffer from the IOA
7429 * @ioa_cfg: ioa config struct
7431 * Fetches the unit check buffer from the adapter by clocking the data
7432 * through the mailbox register.
7437 static void ipr_get_unit_check_buffer(struct ipr_ioa_cfg *ioa_cfg)
7439 unsigned long mailbox;
7440 struct ipr_hostrcb *hostrcb;
7441 struct ipr_uc_sdt sdt;
7445 mailbox = readl(ioa_cfg->ioa_mailbox);
7447 if (!ioa_cfg->sis64 && !ipr_sdt_is_fmt2(mailbox)) {
7448 ipr_unit_check_no_data(ioa_cfg);
7452 memset(&sdt, 0, sizeof(struct ipr_uc_sdt));
7453 rc = ipr_get_ldump_data_section(ioa_cfg, mailbox, (__be32 *) &sdt,
7454 (sizeof(struct ipr_uc_sdt)) / sizeof(__be32));
7456 if (rc || !(sdt.entry[0].flags & IPR_SDT_VALID_ENTRY) ||
7457 ((be32_to_cpu(sdt.hdr.state) != IPR_FMT3_SDT_READY_TO_USE) &&
7458 (be32_to_cpu(sdt.hdr.state) != IPR_FMT2_SDT_READY_TO_USE))) {
7459 ipr_unit_check_no_data(ioa_cfg);
7463 /* Find length of the first sdt entry (UC buffer) */
7464 if (be32_to_cpu(sdt.hdr.state) == IPR_FMT3_SDT_READY_TO_USE)
7465 length = be32_to_cpu(sdt.entry[0].end_token);
7467 length = (be32_to_cpu(sdt.entry[0].end_token) -
7468 be32_to_cpu(sdt.entry[0].start_token)) &
7469 IPR_FMT2_MBX_ADDR_MASK;
7471 hostrcb = list_entry(ioa_cfg->hostrcb_free_q.next,
7472 struct ipr_hostrcb, queue);
7473 list_del(&hostrcb->queue);
7474 memset(&hostrcb->hcam, 0, sizeof(hostrcb->hcam));
7476 rc = ipr_get_ldump_data_section(ioa_cfg,
7477 be32_to_cpu(sdt.entry[0].start_token),
7478 (__be32 *)&hostrcb->hcam,
7479 min(length, (int)sizeof(hostrcb->hcam)) / sizeof(__be32));
7482 ipr_handle_log_data(ioa_cfg, hostrcb);
7483 ioasc = be32_to_cpu(hostrcb->hcam.u.error.fd_ioasc);
7484 if (ioasc == IPR_IOASC_NR_IOA_RESET_REQUIRED &&
7485 ioa_cfg->sdt_state == GET_DUMP)
7486 ioa_cfg->sdt_state = WAIT_FOR_DUMP;
7488 ipr_unit_check_no_data(ioa_cfg);
7490 list_add_tail(&hostrcb->queue, &ioa_cfg->hostrcb_free_q);
7494 * ipr_reset_get_unit_check_job - Call to get the unit check buffer.
7495 * @ipr_cmd: ipr command struct
7497 * Description: This function will call to get the unit check buffer.
7502 static int ipr_reset_get_unit_check_job(struct ipr_cmnd *ipr_cmd)
7504 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7507 ioa_cfg->ioa_unit_checked = 0;
7508 ipr_get_unit_check_buffer(ioa_cfg);
7509 ipr_cmd->job_step = ipr_reset_alert;
7510 ipr_reset_start_timer(ipr_cmd, 0);
7513 return IPR_RC_JOB_RETURN;
7517 * ipr_reset_restore_cfg_space - Restore PCI config space.
7518 * @ipr_cmd: ipr command struct
7520 * Description: This function restores the saved PCI config space of
7521 * the adapter, fails all outstanding ops back to the callers, and
7522 * fetches the dump/unit check if applicable to this reset.
7525 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
7527 static int ipr_reset_restore_cfg_space(struct ipr_cmnd *ipr_cmd)
7529 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7533 ioa_cfg->pdev->state_saved = true;
7534 pci_restore_state(ioa_cfg->pdev);
7536 if (ipr_set_pcix_cmd_reg(ioa_cfg)) {
7537 ipr_cmd->s.ioasa.hdr.ioasc = cpu_to_be32(IPR_IOASC_PCI_ACCESS_ERROR);
7538 return IPR_RC_JOB_CONTINUE;
7541 ipr_fail_all_ops(ioa_cfg);
7543 if (ioa_cfg->sis64) {
7544 /* Set the adapter to the correct endian mode. */
7545 writel(IPR_ENDIAN_SWAP_KEY, ioa_cfg->regs.endian_swap_reg);
7546 int_reg = readl(ioa_cfg->regs.endian_swap_reg);
7549 if (ioa_cfg->ioa_unit_checked) {
7550 if (ioa_cfg->sis64) {
7551 ipr_cmd->job_step = ipr_reset_get_unit_check_job;
7552 ipr_reset_start_timer(ipr_cmd, IPR_DUMP_DELAY_TIMEOUT);
7553 return IPR_RC_JOB_RETURN;
7555 ioa_cfg->ioa_unit_checked = 0;
7556 ipr_get_unit_check_buffer(ioa_cfg);
7557 ipr_cmd->job_step = ipr_reset_alert;
7558 ipr_reset_start_timer(ipr_cmd, 0);
7559 return IPR_RC_JOB_RETURN;
7563 if (ioa_cfg->in_ioa_bringdown) {
7564 ipr_cmd->job_step = ipr_ioa_bringdown_done;
7566 ipr_cmd->job_step = ipr_reset_enable_ioa;
7568 if (GET_DUMP == ioa_cfg->sdt_state) {
7569 ipr_reset_start_timer(ipr_cmd, IPR_DUMP_TIMEOUT);
7570 ipr_cmd->job_step = ipr_reset_wait_for_dump;
7571 schedule_work(&ioa_cfg->work_q);
7572 return IPR_RC_JOB_RETURN;
7577 return IPR_RC_JOB_CONTINUE;
7581 * ipr_reset_bist_done - BIST has completed on the adapter.
7582 * @ipr_cmd: ipr command struct
7584 * Description: Unblock config space and resume the reset process.
7587 * IPR_RC_JOB_CONTINUE
7589 static int ipr_reset_bist_done(struct ipr_cmnd *ipr_cmd)
7592 pci_unblock_user_cfg_access(ipr_cmd->ioa_cfg->pdev);
7593 ipr_cmd->job_step = ipr_reset_restore_cfg_space;
7595 return IPR_RC_JOB_CONTINUE;
7599 * ipr_reset_start_bist - Run BIST on the adapter.
7600 * @ipr_cmd: ipr command struct
7602 * Description: This function runs BIST on the adapter, then delays 2 seconds.
7605 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
7607 static int ipr_reset_start_bist(struct ipr_cmnd *ipr_cmd)
7609 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7610 int rc = PCIBIOS_SUCCESSFUL;
7613 pci_block_user_cfg_access(ioa_cfg->pdev);
7615 if (ioa_cfg->ipr_chip->bist_method == IPR_MMIO)
7616 writel(IPR_UPROCI_SIS64_START_BIST,
7617 ioa_cfg->regs.set_uproc_interrupt_reg32);
7619 rc = pci_write_config_byte(ioa_cfg->pdev, PCI_BIST, PCI_BIST_START);
7621 if (rc == PCIBIOS_SUCCESSFUL) {
7622 ipr_cmd->job_step = ipr_reset_bist_done;
7623 ipr_reset_start_timer(ipr_cmd, IPR_WAIT_FOR_BIST_TIMEOUT);
7624 rc = IPR_RC_JOB_RETURN;
7626 pci_unblock_user_cfg_access(ipr_cmd->ioa_cfg->pdev);
7627 ipr_cmd->s.ioasa.hdr.ioasc = cpu_to_be32(IPR_IOASC_PCI_ACCESS_ERROR);
7628 rc = IPR_RC_JOB_CONTINUE;
7636 * ipr_reset_slot_reset_done - Clear PCI reset to the adapter
7637 * @ipr_cmd: ipr command struct
7639 * Description: This clears PCI reset to the adapter and delays two seconds.
7644 static int ipr_reset_slot_reset_done(struct ipr_cmnd *ipr_cmd)
7647 pci_set_pcie_reset_state(ipr_cmd->ioa_cfg->pdev, pcie_deassert_reset);
7648 ipr_cmd->job_step = ipr_reset_bist_done;
7649 ipr_reset_start_timer(ipr_cmd, IPR_WAIT_FOR_BIST_TIMEOUT);
7651 return IPR_RC_JOB_RETURN;
7655 * ipr_reset_slot_reset - Reset the PCI slot of the adapter.
7656 * @ipr_cmd: ipr command struct
7658 * Description: This asserts PCI reset to the adapter.
7663 static int ipr_reset_slot_reset(struct ipr_cmnd *ipr_cmd)
7665 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7666 struct pci_dev *pdev = ioa_cfg->pdev;
7669 pci_block_user_cfg_access(pdev);
7670 pci_set_pcie_reset_state(pdev, pcie_warm_reset);
7671 ipr_cmd->job_step = ipr_reset_slot_reset_done;
7672 ipr_reset_start_timer(ipr_cmd, IPR_PCI_RESET_TIMEOUT);
7674 return IPR_RC_JOB_RETURN;
7678 * ipr_reset_allowed - Query whether or not IOA can be reset
7679 * @ioa_cfg: ioa config struct
7682 * 0 if reset not allowed / non-zero if reset is allowed
7684 static int ipr_reset_allowed(struct ipr_ioa_cfg *ioa_cfg)
7686 volatile u32 temp_reg;
7688 temp_reg = readl(ioa_cfg->regs.sense_interrupt_reg);
7689 return ((temp_reg & IPR_PCII_CRITICAL_OPERATION) == 0);
7693 * ipr_reset_wait_to_start_bist - Wait for permission to reset IOA.
7694 * @ipr_cmd: ipr command struct
7696 * Description: This function waits for adapter permission to run BIST,
7697 * then runs BIST. If the adapter does not give permission after a
7698 * reasonable time, we will reset the adapter anyway. The impact of
7699 * resetting the adapter without warning the adapter is the risk of
7700 * losing the persistent error log on the adapter. If the adapter is
7701 * reset while it is writing to the flash on the adapter, the flash
7702 * segment will have bad ECC and be zeroed.
7705 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
7707 static int ipr_reset_wait_to_start_bist(struct ipr_cmnd *ipr_cmd)
7709 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7710 int rc = IPR_RC_JOB_RETURN;
7712 if (!ipr_reset_allowed(ioa_cfg) && ipr_cmd->u.time_left) {
7713 ipr_cmd->u.time_left -= IPR_CHECK_FOR_RESET_TIMEOUT;
7714 ipr_reset_start_timer(ipr_cmd, IPR_CHECK_FOR_RESET_TIMEOUT);
7716 ipr_cmd->job_step = ioa_cfg->reset;
7717 rc = IPR_RC_JOB_CONTINUE;
7724 * ipr_reset_alert - Alert the adapter of a pending reset
7725 * @ipr_cmd: ipr command struct
7727 * Description: This function alerts the adapter that it will be reset.
7728 * If memory space is not currently enabled, proceed directly
7729 * to running BIST on the adapter. The timer must always be started
7730 * so we guarantee we do not run BIST from ipr_isr.
7735 static int ipr_reset_alert(struct ipr_cmnd *ipr_cmd)
7737 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7742 rc = pci_read_config_word(ioa_cfg->pdev, PCI_COMMAND, &cmd_reg);
7744 if ((rc == PCIBIOS_SUCCESSFUL) && (cmd_reg & PCI_COMMAND_MEMORY)) {
7745 ipr_mask_and_clear_interrupts(ioa_cfg, ~0);
7746 writel(IPR_UPROCI_RESET_ALERT, ioa_cfg->regs.set_uproc_interrupt_reg32);
7747 ipr_cmd->job_step = ipr_reset_wait_to_start_bist;
7749 ipr_cmd->job_step = ioa_cfg->reset;
7752 ipr_cmd->u.time_left = IPR_WAIT_FOR_RESET_TIMEOUT;
7753 ipr_reset_start_timer(ipr_cmd, IPR_CHECK_FOR_RESET_TIMEOUT);
7756 return IPR_RC_JOB_RETURN;
7760 * ipr_reset_ucode_download_done - Microcode download completion
7761 * @ipr_cmd: ipr command struct
7763 * Description: This function unmaps the microcode download buffer.
7766 * IPR_RC_JOB_CONTINUE
7768 static int ipr_reset_ucode_download_done(struct ipr_cmnd *ipr_cmd)
7770 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7771 struct ipr_sglist *sglist = ioa_cfg->ucode_sglist;
7773 pci_unmap_sg(ioa_cfg->pdev, sglist->scatterlist,
7774 sglist->num_sg, DMA_TO_DEVICE);
7776 ipr_cmd->job_step = ipr_reset_alert;
7777 return IPR_RC_JOB_CONTINUE;
7781 * ipr_reset_ucode_download - Download microcode to the adapter
7782 * @ipr_cmd: ipr command struct
7784 * Description: This function checks to see if it there is microcode
7785 * to download to the adapter. If there is, a download is performed.
7788 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
7790 static int ipr_reset_ucode_download(struct ipr_cmnd *ipr_cmd)
7792 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7793 struct ipr_sglist *sglist = ioa_cfg->ucode_sglist;
7796 ipr_cmd->job_step = ipr_reset_alert;
7799 return IPR_RC_JOB_CONTINUE;
7801 ipr_cmd->ioarcb.res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE);
7802 ipr_cmd->ioarcb.cmd_pkt.request_type = IPR_RQTYPE_SCSICDB;
7803 ipr_cmd->ioarcb.cmd_pkt.cdb[0] = WRITE_BUFFER;
7804 ipr_cmd->ioarcb.cmd_pkt.cdb[1] = IPR_WR_BUF_DOWNLOAD_AND_SAVE;
7805 ipr_cmd->ioarcb.cmd_pkt.cdb[6] = (sglist->buffer_len & 0xff0000) >> 16;
7806 ipr_cmd->ioarcb.cmd_pkt.cdb[7] = (sglist->buffer_len & 0x00ff00) >> 8;
7807 ipr_cmd->ioarcb.cmd_pkt.cdb[8] = sglist->buffer_len & 0x0000ff;
7810 ipr_build_ucode_ioadl64(ipr_cmd, sglist);
7812 ipr_build_ucode_ioadl(ipr_cmd, sglist);
7813 ipr_cmd->job_step = ipr_reset_ucode_download_done;
7815 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout,
7816 IPR_WRITE_BUFFER_TIMEOUT);
7819 return IPR_RC_JOB_RETURN;
7823 * ipr_reset_shutdown_ioa - Shutdown the adapter
7824 * @ipr_cmd: ipr command struct
7826 * Description: This function issues an adapter shutdown of the
7827 * specified type to the specified adapter as part of the
7828 * adapter reset job.
7831 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
7833 static int ipr_reset_shutdown_ioa(struct ipr_cmnd *ipr_cmd)
7835 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7836 enum ipr_shutdown_type shutdown_type = ipr_cmd->u.shutdown_type;
7837 unsigned long timeout;
7838 int rc = IPR_RC_JOB_CONTINUE;
7841 if (shutdown_type != IPR_SHUTDOWN_NONE && !ioa_cfg->ioa_is_dead) {
7842 ipr_cmd->ioarcb.res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE);
7843 ipr_cmd->ioarcb.cmd_pkt.request_type = IPR_RQTYPE_IOACMD;
7844 ipr_cmd->ioarcb.cmd_pkt.cdb[0] = IPR_IOA_SHUTDOWN;
7845 ipr_cmd->ioarcb.cmd_pkt.cdb[1] = shutdown_type;
7847 if (shutdown_type == IPR_SHUTDOWN_NORMAL)
7848 timeout = IPR_SHUTDOWN_TIMEOUT;
7849 else if (shutdown_type == IPR_SHUTDOWN_PREPARE_FOR_NORMAL)
7850 timeout = IPR_INTERNAL_TIMEOUT;
7851 else if (ioa_cfg->dual_raid && ipr_dual_ioa_raid)
7852 timeout = IPR_DUAL_IOA_ABBR_SHUTDOWN_TO;
7854 timeout = IPR_ABBREV_SHUTDOWN_TIMEOUT;
7856 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, timeout);
7858 rc = IPR_RC_JOB_RETURN;
7859 ipr_cmd->job_step = ipr_reset_ucode_download;
7861 ipr_cmd->job_step = ipr_reset_alert;
7868 * ipr_reset_ioa_job - Adapter reset job
7869 * @ipr_cmd: ipr command struct
7871 * Description: This function is the job router for the adapter reset job.
7876 static void ipr_reset_ioa_job(struct ipr_cmnd *ipr_cmd)
7879 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7882 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
7884 if (ioa_cfg->reset_cmd != ipr_cmd) {
7886 * We are doing nested adapter resets and this is
7887 * not the current reset job.
7889 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
7893 if (IPR_IOASC_SENSE_KEY(ioasc)) {
7894 rc = ipr_cmd->job_step_failed(ipr_cmd);
7895 if (rc == IPR_RC_JOB_RETURN)
7899 ipr_reinit_ipr_cmnd(ipr_cmd);
7900 ipr_cmd->job_step_failed = ipr_reset_cmd_failed;
7901 rc = ipr_cmd->job_step(ipr_cmd);
7902 } while(rc == IPR_RC_JOB_CONTINUE);
7906 * _ipr_initiate_ioa_reset - Initiate an adapter reset
7907 * @ioa_cfg: ioa config struct
7908 * @job_step: first job step of reset job
7909 * @shutdown_type: shutdown type
7911 * Description: This function will initiate the reset of the given adapter
7912 * starting at the selected job step.
7913 * If the caller needs to wait on the completion of the reset,
7914 * the caller must sleep on the reset_wait_q.
7919 static void _ipr_initiate_ioa_reset(struct ipr_ioa_cfg *ioa_cfg,
7920 int (*job_step) (struct ipr_cmnd *),
7921 enum ipr_shutdown_type shutdown_type)
7923 struct ipr_cmnd *ipr_cmd;
7925 ioa_cfg->in_reset_reload = 1;
7926 ioa_cfg->allow_cmds = 0;
7927 scsi_block_requests(ioa_cfg->host);
7929 ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg);
7930 ioa_cfg->reset_cmd = ipr_cmd;
7931 ipr_cmd->job_step = job_step;
7932 ipr_cmd->u.shutdown_type = shutdown_type;
7934 ipr_reset_ioa_job(ipr_cmd);
7938 * ipr_initiate_ioa_reset - Initiate an adapter reset
7939 * @ioa_cfg: ioa config struct
7940 * @shutdown_type: shutdown type
7942 * Description: This function will initiate the reset of the given adapter.
7943 * If the caller needs to wait on the completion of the reset,
7944 * the caller must sleep on the reset_wait_q.
7949 static void ipr_initiate_ioa_reset(struct ipr_ioa_cfg *ioa_cfg,
7950 enum ipr_shutdown_type shutdown_type)
7952 if (ioa_cfg->ioa_is_dead)
7955 if (ioa_cfg->in_reset_reload && ioa_cfg->sdt_state == GET_DUMP)
7956 ioa_cfg->sdt_state = ABORT_DUMP;
7958 if (ioa_cfg->reset_retries++ >= IPR_NUM_RESET_RELOAD_RETRIES) {
7959 dev_err(&ioa_cfg->pdev->dev,
7960 "IOA taken offline - error recovery failed\n");
7962 ioa_cfg->reset_retries = 0;
7963 ioa_cfg->ioa_is_dead = 1;
7965 if (ioa_cfg->in_ioa_bringdown) {
7966 ioa_cfg->reset_cmd = NULL;
7967 ioa_cfg->in_reset_reload = 0;
7968 ipr_fail_all_ops(ioa_cfg);
7969 wake_up_all(&ioa_cfg->reset_wait_q);
7971 spin_unlock_irq(ioa_cfg->host->host_lock);
7972 scsi_unblock_requests(ioa_cfg->host);
7973 spin_lock_irq(ioa_cfg->host->host_lock);
7976 ioa_cfg->in_ioa_bringdown = 1;
7977 shutdown_type = IPR_SHUTDOWN_NONE;
7981 _ipr_initiate_ioa_reset(ioa_cfg, ipr_reset_shutdown_ioa,
7986 * ipr_reset_freeze - Hold off all I/O activity
7987 * @ipr_cmd: ipr command struct
7989 * Description: If the PCI slot is frozen, hold off all I/O
7990 * activity; then, as soon as the slot is available again,
7991 * initiate an adapter reset.
7993 static int ipr_reset_freeze(struct ipr_cmnd *ipr_cmd)
7995 /* Disallow new interrupts, avoid loop */
7996 ipr_cmd->ioa_cfg->allow_interrupts = 0;
7997 list_add_tail(&ipr_cmd->queue, &ipr_cmd->ioa_cfg->pending_q);
7998 ipr_cmd->done = ipr_reset_ioa_job;
7999 return IPR_RC_JOB_RETURN;
8003 * ipr_pci_frozen - Called when slot has experienced a PCI bus error.
8004 * @pdev: PCI device struct
8006 * Description: This routine is called to tell us that the PCI bus
8007 * is down. Can't do anything here, except put the device driver
8008 * into a holding pattern, waiting for the PCI bus to come back.
8010 static void ipr_pci_frozen(struct pci_dev *pdev)
8012 unsigned long flags = 0;
8013 struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev);
8015 spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
8016 _ipr_initiate_ioa_reset(ioa_cfg, ipr_reset_freeze, IPR_SHUTDOWN_NONE);
8017 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
8021 * ipr_pci_slot_reset - Called when PCI slot has been reset.
8022 * @pdev: PCI device struct
8024 * Description: This routine is called by the pci error recovery
8025 * code after the PCI slot has been reset, just before we
8026 * should resume normal operations.
8028 static pci_ers_result_t ipr_pci_slot_reset(struct pci_dev *pdev)
8030 unsigned long flags = 0;
8031 struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev);
8033 spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
8034 if (ioa_cfg->needs_warm_reset)
8035 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
8037 _ipr_initiate_ioa_reset(ioa_cfg, ipr_reset_restore_cfg_space,
8039 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
8040 return PCI_ERS_RESULT_RECOVERED;
8044 * ipr_pci_perm_failure - Called when PCI slot is dead for good.
8045 * @pdev: PCI device struct
8047 * Description: This routine is called when the PCI bus has
8048 * permanently failed.
8050 static void ipr_pci_perm_failure(struct pci_dev *pdev)
8052 unsigned long flags = 0;
8053 struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev);
8055 spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
8056 if (ioa_cfg->sdt_state == WAIT_FOR_DUMP)
8057 ioa_cfg->sdt_state = ABORT_DUMP;
8058 ioa_cfg->reset_retries = IPR_NUM_RESET_RELOAD_RETRIES;
8059 ioa_cfg->in_ioa_bringdown = 1;
8060 ioa_cfg->allow_cmds = 0;
8061 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
8062 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
8066 * ipr_pci_error_detected - Called when a PCI error is detected.
8067 * @pdev: PCI device struct
8068 * @state: PCI channel state
8070 * Description: Called when a PCI error is detected.
8073 * PCI_ERS_RESULT_NEED_RESET or PCI_ERS_RESULT_DISCONNECT
8075 static pci_ers_result_t ipr_pci_error_detected(struct pci_dev *pdev,
8076 pci_channel_state_t state)
8079 case pci_channel_io_frozen:
8080 ipr_pci_frozen(pdev);
8081 return PCI_ERS_RESULT_NEED_RESET;
8082 case pci_channel_io_perm_failure:
8083 ipr_pci_perm_failure(pdev);
8084 return PCI_ERS_RESULT_DISCONNECT;
8089 return PCI_ERS_RESULT_NEED_RESET;
8093 * ipr_probe_ioa_part2 - Initializes IOAs found in ipr_probe_ioa(..)
8094 * @ioa_cfg: ioa cfg struct
8096 * Description: This is the second phase of adapter intialization
8097 * This function takes care of initilizing the adapter to the point
8098 * where it can accept new commands.
8101 * 0 on success / -EIO on failure
8103 static int __devinit ipr_probe_ioa_part2(struct ipr_ioa_cfg *ioa_cfg)
8106 unsigned long host_lock_flags = 0;
8109 spin_lock_irqsave(ioa_cfg->host->host_lock, host_lock_flags);
8110 dev_dbg(&ioa_cfg->pdev->dev, "ioa_cfg adx: 0x%p\n", ioa_cfg);
8111 if (ioa_cfg->needs_hard_reset) {
8112 ioa_cfg->needs_hard_reset = 0;
8113 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
8115 _ipr_initiate_ioa_reset(ioa_cfg, ipr_reset_enable_ioa,
8118 spin_unlock_irqrestore(ioa_cfg->host->host_lock, host_lock_flags);
8119 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
8120 spin_lock_irqsave(ioa_cfg->host->host_lock, host_lock_flags);
8122 if (ioa_cfg->ioa_is_dead) {
8124 } else if (ipr_invalid_adapter(ioa_cfg)) {
8128 dev_err(&ioa_cfg->pdev->dev,
8129 "Adapter not supported in this hardware configuration.\n");
8132 spin_unlock_irqrestore(ioa_cfg->host->host_lock, host_lock_flags);
8139 * ipr_free_cmd_blks - Frees command blocks allocated for an adapter
8140 * @ioa_cfg: ioa config struct
8145 static void ipr_free_cmd_blks(struct ipr_ioa_cfg *ioa_cfg)
8149 for (i = 0; i < IPR_NUM_CMD_BLKS; i++) {
8150 if (ioa_cfg->ipr_cmnd_list[i])
8151 pci_pool_free(ioa_cfg->ipr_cmd_pool,
8152 ioa_cfg->ipr_cmnd_list[i],
8153 ioa_cfg->ipr_cmnd_list_dma[i]);
8155 ioa_cfg->ipr_cmnd_list[i] = NULL;
8158 if (ioa_cfg->ipr_cmd_pool)
8159 pci_pool_destroy (ioa_cfg->ipr_cmd_pool);
8161 ioa_cfg->ipr_cmd_pool = NULL;
8165 * ipr_free_mem - Frees memory allocated for an adapter
8166 * @ioa_cfg: ioa cfg struct
8171 static void ipr_free_mem(struct ipr_ioa_cfg *ioa_cfg)
8175 kfree(ioa_cfg->res_entries);
8176 pci_free_consistent(ioa_cfg->pdev, sizeof(struct ipr_misc_cbs),
8177 ioa_cfg->vpd_cbs, ioa_cfg->vpd_cbs_dma);
8178 ipr_free_cmd_blks(ioa_cfg);
8179 pci_free_consistent(ioa_cfg->pdev, sizeof(u32) * IPR_NUM_CMD_BLKS,
8180 ioa_cfg->host_rrq, ioa_cfg->host_rrq_dma);
8181 pci_free_consistent(ioa_cfg->pdev, ioa_cfg->cfg_table_size,
8182 ioa_cfg->u.cfg_table,
8183 ioa_cfg->cfg_table_dma);
8185 for (i = 0; i < IPR_NUM_HCAMS; i++) {
8186 pci_free_consistent(ioa_cfg->pdev,
8187 sizeof(struct ipr_hostrcb),
8188 ioa_cfg->hostrcb[i],
8189 ioa_cfg->hostrcb_dma[i]);
8192 ipr_free_dump(ioa_cfg);
8193 kfree(ioa_cfg->trace);
8197 * ipr_free_all_resources - Free all allocated resources for an adapter.
8198 * @ipr_cmd: ipr command struct
8200 * This function frees all allocated resources for the
8201 * specified adapter.
8206 static void ipr_free_all_resources(struct ipr_ioa_cfg *ioa_cfg)
8208 struct pci_dev *pdev = ioa_cfg->pdev;
8211 free_irq(pdev->irq, ioa_cfg);
8212 pci_disable_msi(pdev);
8213 iounmap(ioa_cfg->hdw_dma_regs);
8214 pci_release_regions(pdev);
8215 ipr_free_mem(ioa_cfg);
8216 scsi_host_put(ioa_cfg->host);
8217 pci_disable_device(pdev);
8222 * ipr_alloc_cmd_blks - Allocate command blocks for an adapter
8223 * @ioa_cfg: ioa config struct
8226 * 0 on success / -ENOMEM on allocation failure
8228 static int __devinit ipr_alloc_cmd_blks(struct ipr_ioa_cfg *ioa_cfg)
8230 struct ipr_cmnd *ipr_cmd;
8231 struct ipr_ioarcb *ioarcb;
8232 dma_addr_t dma_addr;
8235 ioa_cfg->ipr_cmd_pool = pci_pool_create (IPR_NAME, ioa_cfg->pdev,
8236 sizeof(struct ipr_cmnd), 16, 0);
8238 if (!ioa_cfg->ipr_cmd_pool)
8241 for (i = 0; i < IPR_NUM_CMD_BLKS; i++) {
8242 ipr_cmd = pci_pool_alloc (ioa_cfg->ipr_cmd_pool, GFP_KERNEL, &dma_addr);
8245 ipr_free_cmd_blks(ioa_cfg);
8249 memset(ipr_cmd, 0, sizeof(*ipr_cmd));
8250 ioa_cfg->ipr_cmnd_list[i] = ipr_cmd;
8251 ioa_cfg->ipr_cmnd_list_dma[i] = dma_addr;
8253 ioarcb = &ipr_cmd->ioarcb;
8254 ipr_cmd->dma_addr = dma_addr;
8256 ioarcb->a.ioarcb_host_pci_addr64 = cpu_to_be64(dma_addr);
8258 ioarcb->a.ioarcb_host_pci_addr = cpu_to_be32(dma_addr);
8260 ioarcb->host_response_handle = cpu_to_be32(i << 2);
8261 if (ioa_cfg->sis64) {
8262 ioarcb->u.sis64_addr_data.data_ioadl_addr =
8263 cpu_to_be64(dma_addr + offsetof(struct ipr_cmnd, i.ioadl64));
8264 ioarcb->u.sis64_addr_data.ioasa_host_pci_addr =
8265 cpu_to_be64(dma_addr + offsetof(struct ipr_cmnd, s.ioasa64));
8267 ioarcb->write_ioadl_addr =
8268 cpu_to_be32(dma_addr + offsetof(struct ipr_cmnd, i.ioadl));
8269 ioarcb->read_ioadl_addr = ioarcb->write_ioadl_addr;
8270 ioarcb->ioasa_host_pci_addr =
8271 cpu_to_be32(dma_addr + offsetof(struct ipr_cmnd, s.ioasa));
8273 ioarcb->ioasa_len = cpu_to_be16(sizeof(struct ipr_ioasa));
8274 ipr_cmd->cmd_index = i;
8275 ipr_cmd->ioa_cfg = ioa_cfg;
8276 ipr_cmd->sense_buffer_dma = dma_addr +
8277 offsetof(struct ipr_cmnd, sense_buffer);
8279 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
8286 * ipr_alloc_mem - Allocate memory for an adapter
8287 * @ioa_cfg: ioa config struct
8290 * 0 on success / non-zero for error
8292 static int __devinit ipr_alloc_mem(struct ipr_ioa_cfg *ioa_cfg)
8294 struct pci_dev *pdev = ioa_cfg->pdev;
8295 int i, rc = -ENOMEM;
8298 ioa_cfg->res_entries = kzalloc(sizeof(struct ipr_resource_entry) *
8299 ioa_cfg->max_devs_supported, GFP_KERNEL);
8301 if (!ioa_cfg->res_entries)
8304 if (ioa_cfg->sis64) {
8305 ioa_cfg->target_ids = kzalloc(sizeof(unsigned long) *
8306 BITS_TO_LONGS(ioa_cfg->max_devs_supported), GFP_KERNEL);
8307 ioa_cfg->array_ids = kzalloc(sizeof(unsigned long) *
8308 BITS_TO_LONGS(ioa_cfg->max_devs_supported), GFP_KERNEL);
8309 ioa_cfg->vset_ids = kzalloc(sizeof(unsigned long) *
8310 BITS_TO_LONGS(ioa_cfg->max_devs_supported), GFP_KERNEL);
8313 for (i = 0; i < ioa_cfg->max_devs_supported; i++) {
8314 list_add_tail(&ioa_cfg->res_entries[i].queue, &ioa_cfg->free_res_q);
8315 ioa_cfg->res_entries[i].ioa_cfg = ioa_cfg;
8318 ioa_cfg->vpd_cbs = pci_alloc_consistent(ioa_cfg->pdev,
8319 sizeof(struct ipr_misc_cbs),
8320 &ioa_cfg->vpd_cbs_dma);
8322 if (!ioa_cfg->vpd_cbs)
8323 goto out_free_res_entries;
8325 if (ipr_alloc_cmd_blks(ioa_cfg))
8326 goto out_free_vpd_cbs;
8328 ioa_cfg->host_rrq = pci_alloc_consistent(ioa_cfg->pdev,
8329 sizeof(u32) * IPR_NUM_CMD_BLKS,
8330 &ioa_cfg->host_rrq_dma);
8332 if (!ioa_cfg->host_rrq)
8333 goto out_ipr_free_cmd_blocks;
8335 ioa_cfg->u.cfg_table = pci_alloc_consistent(ioa_cfg->pdev,
8336 ioa_cfg->cfg_table_size,
8337 &ioa_cfg->cfg_table_dma);
8339 if (!ioa_cfg->u.cfg_table)
8340 goto out_free_host_rrq;
8342 for (i = 0; i < IPR_NUM_HCAMS; i++) {
8343 ioa_cfg->hostrcb[i] = pci_alloc_consistent(ioa_cfg->pdev,
8344 sizeof(struct ipr_hostrcb),
8345 &ioa_cfg->hostrcb_dma[i]);
8347 if (!ioa_cfg->hostrcb[i])
8348 goto out_free_hostrcb_dma;
8350 ioa_cfg->hostrcb[i]->hostrcb_dma =
8351 ioa_cfg->hostrcb_dma[i] + offsetof(struct ipr_hostrcb, hcam);
8352 ioa_cfg->hostrcb[i]->ioa_cfg = ioa_cfg;
8353 list_add_tail(&ioa_cfg->hostrcb[i]->queue, &ioa_cfg->hostrcb_free_q);
8356 ioa_cfg->trace = kzalloc(sizeof(struct ipr_trace_entry) *
8357 IPR_NUM_TRACE_ENTRIES, GFP_KERNEL);
8359 if (!ioa_cfg->trace)
8360 goto out_free_hostrcb_dma;
8367 out_free_hostrcb_dma:
8369 pci_free_consistent(pdev, sizeof(struct ipr_hostrcb),
8370 ioa_cfg->hostrcb[i],
8371 ioa_cfg->hostrcb_dma[i]);
8373 pci_free_consistent(pdev, ioa_cfg->cfg_table_size,
8374 ioa_cfg->u.cfg_table,
8375 ioa_cfg->cfg_table_dma);
8377 pci_free_consistent(pdev, sizeof(u32) * IPR_NUM_CMD_BLKS,
8378 ioa_cfg->host_rrq, ioa_cfg->host_rrq_dma);
8379 out_ipr_free_cmd_blocks:
8380 ipr_free_cmd_blks(ioa_cfg);
8382 pci_free_consistent(pdev, sizeof(struct ipr_misc_cbs),
8383 ioa_cfg->vpd_cbs, ioa_cfg->vpd_cbs_dma);
8384 out_free_res_entries:
8385 kfree(ioa_cfg->res_entries);
8390 * ipr_initialize_bus_attr - Initialize SCSI bus attributes to default values
8391 * @ioa_cfg: ioa config struct
8396 static void __devinit ipr_initialize_bus_attr(struct ipr_ioa_cfg *ioa_cfg)
8400 for (i = 0; i < IPR_MAX_NUM_BUSES; i++) {
8401 ioa_cfg->bus_attr[i].bus = i;
8402 ioa_cfg->bus_attr[i].qas_enabled = 0;
8403 ioa_cfg->bus_attr[i].bus_width = IPR_DEFAULT_BUS_WIDTH;
8404 if (ipr_max_speed < ARRAY_SIZE(ipr_max_bus_speeds))
8405 ioa_cfg->bus_attr[i].max_xfer_rate = ipr_max_bus_speeds[ipr_max_speed];
8407 ioa_cfg->bus_attr[i].max_xfer_rate = IPR_U160_SCSI_RATE;
8412 * ipr_init_ioa_cfg - Initialize IOA config struct
8413 * @ioa_cfg: ioa config struct
8414 * @host: scsi host struct
8415 * @pdev: PCI dev struct
8420 static void __devinit ipr_init_ioa_cfg(struct ipr_ioa_cfg *ioa_cfg,
8421 struct Scsi_Host *host, struct pci_dev *pdev)
8423 const struct ipr_interrupt_offsets *p;
8424 struct ipr_interrupts *t;
8427 ioa_cfg->host = host;
8428 ioa_cfg->pdev = pdev;
8429 ioa_cfg->log_level = ipr_log_level;
8430 ioa_cfg->doorbell = IPR_DOORBELL;
8431 sprintf(ioa_cfg->eye_catcher, IPR_EYECATCHER);
8432 sprintf(ioa_cfg->trace_start, IPR_TRACE_START_LABEL);
8433 sprintf(ioa_cfg->ipr_free_label, IPR_FREEQ_LABEL);
8434 sprintf(ioa_cfg->ipr_pending_label, IPR_PENDQ_LABEL);
8435 sprintf(ioa_cfg->cfg_table_start, IPR_CFG_TBL_START);
8436 sprintf(ioa_cfg->resource_table_label, IPR_RES_TABLE_LABEL);
8437 sprintf(ioa_cfg->ipr_hcam_label, IPR_HCAM_LABEL);
8438 sprintf(ioa_cfg->ipr_cmd_label, IPR_CMD_LABEL);
8440 INIT_LIST_HEAD(&ioa_cfg->free_q);
8441 INIT_LIST_HEAD(&ioa_cfg->pending_q);
8442 INIT_LIST_HEAD(&ioa_cfg->hostrcb_free_q);
8443 INIT_LIST_HEAD(&ioa_cfg->hostrcb_pending_q);
8444 INIT_LIST_HEAD(&ioa_cfg->free_res_q);
8445 INIT_LIST_HEAD(&ioa_cfg->used_res_q);
8446 INIT_WORK(&ioa_cfg->work_q, ipr_worker_thread);
8447 init_waitqueue_head(&ioa_cfg->reset_wait_q);
8448 init_waitqueue_head(&ioa_cfg->msi_wait_q);
8449 ioa_cfg->sdt_state = INACTIVE;
8451 ipr_initialize_bus_attr(ioa_cfg);
8452 ioa_cfg->max_devs_supported = ipr_max_devs;
8454 if (ioa_cfg->sis64) {
8455 host->max_id = IPR_MAX_SIS64_TARGETS_PER_BUS;
8456 host->max_lun = IPR_MAX_SIS64_LUNS_PER_TARGET;
8457 if (ipr_max_devs > IPR_MAX_SIS64_DEVS)
8458 ioa_cfg->max_devs_supported = IPR_MAX_SIS64_DEVS;
8460 host->max_id = IPR_MAX_NUM_TARGETS_PER_BUS;
8461 host->max_lun = IPR_MAX_NUM_LUNS_PER_TARGET;
8462 if (ipr_max_devs > IPR_MAX_PHYSICAL_DEVS)
8463 ioa_cfg->max_devs_supported = IPR_MAX_PHYSICAL_DEVS;
8465 host->max_channel = IPR_MAX_BUS_TO_SCAN;
8466 host->unique_id = host->host_no;
8467 host->max_cmd_len = IPR_MAX_CDB_LEN;
8468 pci_set_drvdata(pdev, ioa_cfg);
8470 p = &ioa_cfg->chip_cfg->regs;
8472 base = ioa_cfg->hdw_dma_regs;
8474 t->set_interrupt_mask_reg = base + p->set_interrupt_mask_reg;
8475 t->clr_interrupt_mask_reg = base + p->clr_interrupt_mask_reg;
8476 t->clr_interrupt_mask_reg32 = base + p->clr_interrupt_mask_reg32;
8477 t->sense_interrupt_mask_reg = base + p->sense_interrupt_mask_reg;
8478 t->sense_interrupt_mask_reg32 = base + p->sense_interrupt_mask_reg32;
8479 t->clr_interrupt_reg = base + p->clr_interrupt_reg;
8480 t->clr_interrupt_reg32 = base + p->clr_interrupt_reg32;
8481 t->sense_interrupt_reg = base + p->sense_interrupt_reg;
8482 t->sense_interrupt_reg32 = base + p->sense_interrupt_reg32;
8483 t->ioarrin_reg = base + p->ioarrin_reg;
8484 t->sense_uproc_interrupt_reg = base + p->sense_uproc_interrupt_reg;
8485 t->sense_uproc_interrupt_reg32 = base + p->sense_uproc_interrupt_reg32;
8486 t->set_uproc_interrupt_reg = base + p->set_uproc_interrupt_reg;
8487 t->set_uproc_interrupt_reg32 = base + p->set_uproc_interrupt_reg32;
8488 t->clr_uproc_interrupt_reg = base + p->clr_uproc_interrupt_reg;
8489 t->clr_uproc_interrupt_reg32 = base + p->clr_uproc_interrupt_reg32;
8491 if (ioa_cfg->sis64) {
8492 t->init_feedback_reg = base + p->init_feedback_reg;
8493 t->dump_addr_reg = base + p->dump_addr_reg;
8494 t->dump_data_reg = base + p->dump_data_reg;
8495 t->endian_swap_reg = base + p->endian_swap_reg;
8500 * ipr_get_chip_info - Find adapter chip information
8501 * @dev_id: PCI device id struct
8504 * ptr to chip information on success / NULL on failure
8506 static const struct ipr_chip_t * __devinit
8507 ipr_get_chip_info(const struct pci_device_id *dev_id)
8511 for (i = 0; i < ARRAY_SIZE(ipr_chip); i++)
8512 if (ipr_chip[i].vendor == dev_id->vendor &&
8513 ipr_chip[i].device == dev_id->device)
8514 return &ipr_chip[i];
8519 * ipr_test_intr - Handle the interrupt generated in ipr_test_msi().
8520 * @pdev: PCI device struct
8522 * Description: Simply set the msi_received flag to 1 indicating that
8523 * Message Signaled Interrupts are supported.
8526 * 0 on success / non-zero on failure
8528 static irqreturn_t __devinit ipr_test_intr(int irq, void *devp)
8530 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)devp;
8531 unsigned long lock_flags = 0;
8532 irqreturn_t rc = IRQ_HANDLED;
8534 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
8536 ioa_cfg->msi_received = 1;
8537 wake_up(&ioa_cfg->msi_wait_q);
8539 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
8544 * ipr_test_msi - Test for Message Signaled Interrupt (MSI) support.
8545 * @pdev: PCI device struct
8547 * Description: The return value from pci_enable_msi() can not always be
8548 * trusted. This routine sets up and initiates a test interrupt to determine
8549 * if the interrupt is received via the ipr_test_intr() service routine.
8550 * If the tests fails, the driver will fall back to LSI.
8553 * 0 on success / non-zero on failure
8555 static int __devinit ipr_test_msi(struct ipr_ioa_cfg *ioa_cfg,
8556 struct pci_dev *pdev)
8559 volatile u32 int_reg;
8560 unsigned long lock_flags = 0;
8564 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
8565 init_waitqueue_head(&ioa_cfg->msi_wait_q);
8566 ioa_cfg->msi_received = 0;
8567 ipr_mask_and_clear_interrupts(ioa_cfg, ~IPR_PCII_IOA_TRANS_TO_OPER);
8568 writel(IPR_PCII_IO_DEBUG_ACKNOWLEDGE, ioa_cfg->regs.clr_interrupt_mask_reg32);
8569 int_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg);
8570 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
8572 rc = request_irq(pdev->irq, ipr_test_intr, 0, IPR_NAME, ioa_cfg);
8574 dev_err(&pdev->dev, "Can not assign irq %d\n", pdev->irq);
8576 } else if (ipr_debug)
8577 dev_info(&pdev->dev, "IRQ assigned: %d\n", pdev->irq);
8579 writel(IPR_PCII_IO_DEBUG_ACKNOWLEDGE, ioa_cfg->regs.sense_interrupt_reg32);
8580 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg);
8581 wait_event_timeout(ioa_cfg->msi_wait_q, ioa_cfg->msi_received, HZ);
8582 ipr_mask_and_clear_interrupts(ioa_cfg, ~IPR_PCII_IOA_TRANS_TO_OPER);
8584 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
8585 if (!ioa_cfg->msi_received) {
8586 /* MSI test failed */
8587 dev_info(&pdev->dev, "MSI test failed. Falling back to LSI.\n");
8589 } else if (ipr_debug)
8590 dev_info(&pdev->dev, "MSI test succeeded.\n");
8592 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
8594 free_irq(pdev->irq, ioa_cfg);
8602 * ipr_probe_ioa - Allocates memory and does first stage of initialization
8603 * @pdev: PCI device struct
8604 * @dev_id: PCI device id struct
8607 * 0 on success / non-zero on failure
8609 static int __devinit ipr_probe_ioa(struct pci_dev *pdev,
8610 const struct pci_device_id *dev_id)
8612 struct ipr_ioa_cfg *ioa_cfg;
8613 struct Scsi_Host *host;
8614 unsigned long ipr_regs_pci;
8615 void __iomem *ipr_regs;
8616 int rc = PCIBIOS_SUCCESSFUL;
8617 volatile u32 mask, uproc, interrupts;
8621 if ((rc = pci_enable_device(pdev))) {
8622 dev_err(&pdev->dev, "Cannot enable adapter\n");
8626 dev_info(&pdev->dev, "Found IOA with IRQ: %d\n", pdev->irq);
8628 host = scsi_host_alloc(&driver_template, sizeof(*ioa_cfg));
8631 dev_err(&pdev->dev, "call to scsi_host_alloc failed!\n");
8636 ioa_cfg = (struct ipr_ioa_cfg *)host->hostdata;
8637 memset(ioa_cfg, 0, sizeof(struct ipr_ioa_cfg));
8638 ata_host_init(&ioa_cfg->ata_host, &pdev->dev,
8639 sata_port_info.flags, &ipr_sata_ops);
8641 ioa_cfg->ipr_chip = ipr_get_chip_info(dev_id);
8643 if (!ioa_cfg->ipr_chip) {
8644 dev_err(&pdev->dev, "Unknown adapter chipset 0x%04X 0x%04X\n",
8645 dev_id->vendor, dev_id->device);
8646 goto out_scsi_host_put;
8649 /* set SIS 32 or SIS 64 */
8650 ioa_cfg->sis64 = ioa_cfg->ipr_chip->sis_type == IPR_SIS64 ? 1 : 0;
8651 ioa_cfg->chip_cfg = ioa_cfg->ipr_chip->cfg;
8653 if (ipr_transop_timeout)
8654 ioa_cfg->transop_timeout = ipr_transop_timeout;
8655 else if (dev_id->driver_data & IPR_USE_LONG_TRANSOP_TIMEOUT)
8656 ioa_cfg->transop_timeout = IPR_LONG_OPERATIONAL_TIMEOUT;
8658 ioa_cfg->transop_timeout = IPR_OPERATIONAL_TIMEOUT;
8660 ioa_cfg->revid = pdev->revision;
8662 ipr_regs_pci = pci_resource_start(pdev, 0);
8664 rc = pci_request_regions(pdev, IPR_NAME);
8667 "Couldn't register memory range of registers\n");
8668 goto out_scsi_host_put;
8671 ipr_regs = pci_ioremap_bar(pdev, 0);
8675 "Couldn't map memory range of registers\n");
8677 goto out_release_regions;
8680 ioa_cfg->hdw_dma_regs = ipr_regs;
8681 ioa_cfg->hdw_dma_regs_pci = ipr_regs_pci;
8682 ioa_cfg->ioa_mailbox = ioa_cfg->chip_cfg->mailbox + ipr_regs;
8684 ipr_init_ioa_cfg(ioa_cfg, host, pdev);
8686 pci_set_master(pdev);
8688 if (ioa_cfg->sis64) {
8689 rc = pci_set_dma_mask(pdev, DMA_BIT_MASK(64));
8691 dev_dbg(&pdev->dev, "Failed to set 64 bit PCI DMA mask\n");
8692 rc = pci_set_dma_mask(pdev, DMA_BIT_MASK(32));
8696 rc = pci_set_dma_mask(pdev, DMA_BIT_MASK(32));
8699 dev_err(&pdev->dev, "Failed to set PCI DMA mask\n");
8703 rc = pci_write_config_byte(pdev, PCI_CACHE_LINE_SIZE,
8704 ioa_cfg->chip_cfg->cache_line_size);
8706 if (rc != PCIBIOS_SUCCESSFUL) {
8707 dev_err(&pdev->dev, "Write of cache line size failed\n");
8712 /* Enable MSI style interrupts if they are supported. */
8713 if (ioa_cfg->ipr_chip->intr_type == IPR_USE_MSI && !pci_enable_msi(pdev)) {
8714 rc = ipr_test_msi(ioa_cfg, pdev);
8715 if (rc == -EOPNOTSUPP)
8716 pci_disable_msi(pdev);
8718 goto out_msi_disable;
8720 dev_info(&pdev->dev, "MSI enabled with IRQ: %d\n", pdev->irq);
8721 } else if (ipr_debug)
8722 dev_info(&pdev->dev, "Cannot enable MSI.\n");
8724 /* Save away PCI config space for use following IOA reset */
8725 rc = pci_save_state(pdev);
8727 if (rc != PCIBIOS_SUCCESSFUL) {
8728 dev_err(&pdev->dev, "Failed to save PCI config space\n");
8733 if ((rc = ipr_save_pcix_cmd_reg(ioa_cfg)))
8736 if ((rc = ipr_set_pcix_cmd_reg(ioa_cfg)))
8740 ioa_cfg->cfg_table_size = (sizeof(struct ipr_config_table_hdr64)
8741 + ((sizeof(struct ipr_config_table_entry64)
8742 * ioa_cfg->max_devs_supported)));
8744 ioa_cfg->cfg_table_size = (sizeof(struct ipr_config_table_hdr)
8745 + ((sizeof(struct ipr_config_table_entry)
8746 * ioa_cfg->max_devs_supported)));
8748 rc = ipr_alloc_mem(ioa_cfg);
8751 "Couldn't allocate enough memory for device driver!\n");
8756 * If HRRQ updated interrupt is not masked, or reset alert is set,
8757 * the card is in an unknown state and needs a hard reset
8759 mask = readl(ioa_cfg->regs.sense_interrupt_mask_reg32);
8760 interrupts = readl(ioa_cfg->regs.sense_interrupt_reg32);
8761 uproc = readl(ioa_cfg->regs.sense_uproc_interrupt_reg32);
8762 if ((mask & IPR_PCII_HRRQ_UPDATED) == 0 || (uproc & IPR_UPROCI_RESET_ALERT))
8763 ioa_cfg->needs_hard_reset = 1;
8764 if (interrupts & IPR_PCII_ERROR_INTERRUPTS)
8765 ioa_cfg->needs_hard_reset = 1;
8766 if (interrupts & IPR_PCII_IOA_UNIT_CHECKED)
8767 ioa_cfg->ioa_unit_checked = 1;
8769 ipr_mask_and_clear_interrupts(ioa_cfg, ~IPR_PCII_IOA_TRANS_TO_OPER);
8770 rc = request_irq(pdev->irq, ipr_isr,
8771 ioa_cfg->msi_received ? 0 : IRQF_SHARED,
8775 dev_err(&pdev->dev, "Couldn't register IRQ %d! rc=%d\n",
8780 if ((dev_id->driver_data & IPR_USE_PCI_WARM_RESET) ||
8781 (dev_id->device == PCI_DEVICE_ID_IBM_OBSIDIAN_E && !ioa_cfg->revid)) {
8782 ioa_cfg->needs_warm_reset = 1;
8783 ioa_cfg->reset = ipr_reset_slot_reset;
8785 ioa_cfg->reset = ipr_reset_start_bist;
8787 spin_lock(&ipr_driver_lock);
8788 list_add_tail(&ioa_cfg->queue, &ipr_ioa_head);
8789 spin_unlock(&ipr_driver_lock);
8796 ipr_free_mem(ioa_cfg);
8800 pci_disable_msi(pdev);
8801 out_release_regions:
8802 pci_release_regions(pdev);
8804 scsi_host_put(host);
8806 pci_disable_device(pdev);
8811 * ipr_scan_vsets - Scans for VSET devices
8812 * @ioa_cfg: ioa config struct
8814 * Description: Since the VSET resources do not follow SAM in that we can have
8815 * sparse LUNs with no LUN 0, we have to scan for these ourselves.
8820 static void ipr_scan_vsets(struct ipr_ioa_cfg *ioa_cfg)
8824 for (target = 0; target < IPR_MAX_NUM_TARGETS_PER_BUS; target++)
8825 for (lun = 0; lun < IPR_MAX_NUM_VSET_LUNS_PER_TARGET; lun++ )
8826 scsi_add_device(ioa_cfg->host, IPR_VSET_BUS, target, lun);
8830 * ipr_initiate_ioa_bringdown - Bring down an adapter
8831 * @ioa_cfg: ioa config struct
8832 * @shutdown_type: shutdown type
8834 * Description: This function will initiate bringing down the adapter.
8835 * This consists of issuing an IOA shutdown to the adapter
8836 * to flush the cache, and running BIST.
8837 * If the caller needs to wait on the completion of the reset,
8838 * the caller must sleep on the reset_wait_q.
8843 static void ipr_initiate_ioa_bringdown(struct ipr_ioa_cfg *ioa_cfg,
8844 enum ipr_shutdown_type shutdown_type)
8847 if (ioa_cfg->sdt_state == WAIT_FOR_DUMP)
8848 ioa_cfg->sdt_state = ABORT_DUMP;
8849 ioa_cfg->reset_retries = 0;
8850 ioa_cfg->in_ioa_bringdown = 1;
8851 ipr_initiate_ioa_reset(ioa_cfg, shutdown_type);
8856 * __ipr_remove - Remove a single adapter
8857 * @pdev: pci device struct
8859 * Adapter hot plug remove entry point.
8864 static void __ipr_remove(struct pci_dev *pdev)
8866 unsigned long host_lock_flags = 0;
8867 struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev);
8870 spin_lock_irqsave(ioa_cfg->host->host_lock, host_lock_flags);
8871 while(ioa_cfg->in_reset_reload) {
8872 spin_unlock_irqrestore(ioa_cfg->host->host_lock, host_lock_flags);
8873 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
8874 spin_lock_irqsave(ioa_cfg->host->host_lock, host_lock_flags);
8877 ipr_initiate_ioa_bringdown(ioa_cfg, IPR_SHUTDOWN_NORMAL);
8879 spin_unlock_irqrestore(ioa_cfg->host->host_lock, host_lock_flags);
8880 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
8881 flush_work_sync(&ioa_cfg->work_q);
8882 spin_lock_irqsave(ioa_cfg->host->host_lock, host_lock_flags);
8884 spin_lock(&ipr_driver_lock);
8885 list_del(&ioa_cfg->queue);
8886 spin_unlock(&ipr_driver_lock);
8888 if (ioa_cfg->sdt_state == ABORT_DUMP)
8889 ioa_cfg->sdt_state = WAIT_FOR_DUMP;
8890 spin_unlock_irqrestore(ioa_cfg->host->host_lock, host_lock_flags);
8892 ipr_free_all_resources(ioa_cfg);
8898 * ipr_remove - IOA hot plug remove entry point
8899 * @pdev: pci device struct
8901 * Adapter hot plug remove entry point.
8906 static void __devexit ipr_remove(struct pci_dev *pdev)
8908 struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev);
8912 ipr_remove_trace_file(&ioa_cfg->host->shost_dev.kobj,
8914 ipr_remove_dump_file(&ioa_cfg->host->shost_dev.kobj,
8916 scsi_remove_host(ioa_cfg->host);
8924 * ipr_probe - Adapter hot plug add entry point
8927 * 0 on success / non-zero on failure
8929 static int __devinit ipr_probe(struct pci_dev *pdev,
8930 const struct pci_device_id *dev_id)
8932 struct ipr_ioa_cfg *ioa_cfg;
8935 rc = ipr_probe_ioa(pdev, dev_id);
8940 ioa_cfg = pci_get_drvdata(pdev);
8941 rc = ipr_probe_ioa_part2(ioa_cfg);
8948 rc = scsi_add_host(ioa_cfg->host, &pdev->dev);
8955 rc = ipr_create_trace_file(&ioa_cfg->host->shost_dev.kobj,
8959 scsi_remove_host(ioa_cfg->host);
8964 rc = ipr_create_dump_file(&ioa_cfg->host->shost_dev.kobj,
8968 ipr_remove_trace_file(&ioa_cfg->host->shost_dev.kobj,
8970 scsi_remove_host(ioa_cfg->host);
8975 scsi_scan_host(ioa_cfg->host);
8976 ipr_scan_vsets(ioa_cfg);
8977 scsi_add_device(ioa_cfg->host, IPR_IOA_BUS, IPR_IOA_TARGET, IPR_IOA_LUN);
8978 ioa_cfg->allow_ml_add_del = 1;
8979 ioa_cfg->host->max_channel = IPR_VSET_BUS;
8980 schedule_work(&ioa_cfg->work_q);
8985 * ipr_shutdown - Shutdown handler.
8986 * @pdev: pci device struct
8988 * This function is invoked upon system shutdown/reboot. It will issue
8989 * an adapter shutdown to the adapter to flush the write cache.
8994 static void ipr_shutdown(struct pci_dev *pdev)
8996 struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev);
8997 unsigned long lock_flags = 0;
8999 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
9000 while(ioa_cfg->in_reset_reload) {
9001 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
9002 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
9003 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
9006 ipr_initiate_ioa_bringdown(ioa_cfg, IPR_SHUTDOWN_NORMAL);
9007 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
9008 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
9011 static struct pci_device_id ipr_pci_table[] __devinitdata = {
9012 { PCI_VENDOR_ID_MYLEX, PCI_DEVICE_ID_IBM_GEMSTONE,
9013 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_5702, 0, 0, 0 },
9014 { PCI_VENDOR_ID_MYLEX, PCI_DEVICE_ID_IBM_GEMSTONE,
9015 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_5703, 0, 0, 0 },
9016 { PCI_VENDOR_ID_MYLEX, PCI_DEVICE_ID_IBM_GEMSTONE,
9017 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_573D, 0, 0, 0 },
9018 { PCI_VENDOR_ID_MYLEX, PCI_DEVICE_ID_IBM_GEMSTONE,
9019 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_573E, 0, 0, 0 },
9020 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CITRINE,
9021 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_571B, 0, 0, 0 },
9022 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CITRINE,
9023 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572E, 0, 0, 0 },
9024 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CITRINE,
9025 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_571A, 0, 0, 0 },
9026 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CITRINE,
9027 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_575B, 0, 0,
9028 IPR_USE_LONG_TRANSOP_TIMEOUT },
9029 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_OBSIDIAN,
9030 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572A, 0, 0, 0 },
9031 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_OBSIDIAN,
9032 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572B, 0, 0,
9033 IPR_USE_LONG_TRANSOP_TIMEOUT },
9034 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_OBSIDIAN,
9035 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_575C, 0, 0,
9036 IPR_USE_LONG_TRANSOP_TIMEOUT },
9037 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN,
9038 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572A, 0, 0, 0 },
9039 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN,
9040 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572B, 0, 0,
9041 IPR_USE_LONG_TRANSOP_TIMEOUT},
9042 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN,
9043 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_575C, 0, 0,
9044 IPR_USE_LONG_TRANSOP_TIMEOUT },
9045 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN_E,
9046 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_574E, 0, 0,
9047 IPR_USE_LONG_TRANSOP_TIMEOUT },
9048 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN_E,
9049 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57B3, 0, 0, 0 },
9050 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN_E,
9051 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57CC, 0, 0, 0 },
9052 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN_E,
9053 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57B7, 0, 0,
9054 IPR_USE_LONG_TRANSOP_TIMEOUT | IPR_USE_PCI_WARM_RESET },
9055 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_SNIPE,
9056 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_2780, 0, 0, 0 },
9057 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_SCAMP,
9058 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_571E, 0, 0, 0 },
9059 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_SCAMP,
9060 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_571F, 0, 0,
9061 IPR_USE_LONG_TRANSOP_TIMEOUT },
9062 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_SCAMP,
9063 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572F, 0, 0,
9064 IPR_USE_LONG_TRANSOP_TIMEOUT },
9065 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_FPGA_E2,
9066 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57B5, 0, 0, 0 },
9067 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_FPGA_E2,
9068 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_574D, 0, 0, 0 },
9069 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_FPGA_E2,
9070 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57B2, 0, 0, 0 },
9071 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_FPGA_E2,
9072 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57C4, 0, 0, 0 },
9073 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_ASIC_E2,
9074 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57B4, 0, 0, 0 },
9075 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_ASIC_E2,
9076 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57B1, 0, 0, 0 },
9077 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_ASIC_E2,
9078 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57C6, 0, 0, 0 },
9079 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_ASIC_E2,
9080 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_575D, 0, 0, 0 },
9081 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_ASIC_E2,
9082 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57CE, 0, 0, 0 },
9085 MODULE_DEVICE_TABLE(pci, ipr_pci_table);
9087 static struct pci_error_handlers ipr_err_handler = {
9088 .error_detected = ipr_pci_error_detected,
9089 .slot_reset = ipr_pci_slot_reset,
9092 static struct pci_driver ipr_driver = {
9094 .id_table = ipr_pci_table,
9096 .remove = __devexit_p(ipr_remove),
9097 .shutdown = ipr_shutdown,
9098 .err_handler = &ipr_err_handler,
9102 * ipr_halt_done - Shutdown prepare completion
9107 static void ipr_halt_done(struct ipr_cmnd *ipr_cmd)
9109 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
9111 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
9115 * ipr_halt - Issue shutdown prepare to all adapters
9118 * NOTIFY_OK on success / NOTIFY_DONE on failure
9120 static int ipr_halt(struct notifier_block *nb, ulong event, void *buf)
9122 struct ipr_cmnd *ipr_cmd;
9123 struct ipr_ioa_cfg *ioa_cfg;
9124 unsigned long flags = 0;
9126 if (event != SYS_RESTART && event != SYS_HALT && event != SYS_POWER_OFF)
9129 spin_lock(&ipr_driver_lock);
9131 list_for_each_entry(ioa_cfg, &ipr_ioa_head, queue) {
9132 spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
9133 if (!ioa_cfg->allow_cmds) {
9134 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
9138 ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg);
9139 ipr_cmd->ioarcb.res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE);
9140 ipr_cmd->ioarcb.cmd_pkt.request_type = IPR_RQTYPE_IOACMD;
9141 ipr_cmd->ioarcb.cmd_pkt.cdb[0] = IPR_IOA_SHUTDOWN;
9142 ipr_cmd->ioarcb.cmd_pkt.cdb[1] = IPR_SHUTDOWN_PREPARE_FOR_NORMAL;
9144 ipr_do_req(ipr_cmd, ipr_halt_done, ipr_timeout, IPR_DEVICE_RESET_TIMEOUT);
9145 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
9147 spin_unlock(&ipr_driver_lock);
9152 static struct notifier_block ipr_notifier = {
9157 * ipr_init - Module entry point
9160 * 0 on success / negative value on failure
9162 static int __init ipr_init(void)
9164 ipr_info("IBM Power RAID SCSI Device Driver version: %s %s\n",
9165 IPR_DRIVER_VERSION, IPR_DRIVER_DATE);
9167 register_reboot_notifier(&ipr_notifier);
9168 return pci_register_driver(&ipr_driver);
9172 * ipr_exit - Module unload
9174 * Module unload entry point.
9179 static void __exit ipr_exit(void)
9181 unregister_reboot_notifier(&ipr_notifier);
9182 pci_unregister_driver(&ipr_driver);
9185 module_init(ipr_init);
9186 module_exit(ipr_exit);