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 res->lun = scsilun_to_int(&res->dev_lun);
1053 if (res->type == IPR_RES_TYPE_GENERIC_SCSI) {
1054 list_for_each_entry(gscsi_res, &ioa_cfg->used_res_q, queue) {
1055 if (gscsi_res->dev_id == cfgtew->u.cfgte64->dev_id) {
1057 res->target = gscsi_res->target;
1062 res->target = find_first_zero_bit(ioa_cfg->target_ids,
1063 ioa_cfg->max_devs_supported);
1064 set_bit(res->target, ioa_cfg->target_ids);
1067 memcpy(&res->dev_lun.scsi_lun, &cfgtew->u.cfgte64->lun,
1068 sizeof(res->dev_lun.scsi_lun));
1069 } else if (res->type == IPR_RES_TYPE_IOAFP) {
1070 res->bus = IPR_IOAFP_VIRTUAL_BUS;
1072 } else if (res->type == IPR_RES_TYPE_ARRAY) {
1073 res->bus = IPR_ARRAY_VIRTUAL_BUS;
1074 res->target = find_first_zero_bit(ioa_cfg->array_ids,
1075 ioa_cfg->max_devs_supported);
1076 set_bit(res->target, ioa_cfg->array_ids);
1077 } else if (res->type == IPR_RES_TYPE_VOLUME_SET) {
1078 res->bus = IPR_VSET_VIRTUAL_BUS;
1079 res->target = find_first_zero_bit(ioa_cfg->vset_ids,
1080 ioa_cfg->max_devs_supported);
1081 set_bit(res->target, ioa_cfg->vset_ids);
1083 res->target = find_first_zero_bit(ioa_cfg->target_ids,
1084 ioa_cfg->max_devs_supported);
1085 set_bit(res->target, ioa_cfg->target_ids);
1088 proto = cfgtew->u.cfgte->proto;
1089 res->qmodel = IPR_QUEUEING_MODEL(res);
1090 res->flags = cfgtew->u.cfgte->flags;
1091 if (res->flags & IPR_IS_IOA_RESOURCE)
1092 res->type = IPR_RES_TYPE_IOAFP;
1094 res->type = cfgtew->u.cfgte->rsvd_subtype & 0x0f;
1096 res->bus = cfgtew->u.cfgte->res_addr.bus;
1097 res->target = cfgtew->u.cfgte->res_addr.target;
1098 res->lun = cfgtew->u.cfgte->res_addr.lun;
1101 ipr_update_ata_class(res, proto);
1105 * ipr_is_same_device - Determine if two devices are the same.
1106 * @res: resource entry struct
1107 * @cfgtew: config table entry wrapper struct
1110 * 1 if the devices are the same / 0 otherwise
1112 static int ipr_is_same_device(struct ipr_resource_entry *res,
1113 struct ipr_config_table_entry_wrapper *cfgtew)
1115 if (res->ioa_cfg->sis64) {
1116 if (!memcmp(&res->dev_id, &cfgtew->u.cfgte64->dev_id,
1117 sizeof(cfgtew->u.cfgte64->dev_id)) &&
1118 !memcmp(&res->lun, &cfgtew->u.cfgte64->lun,
1119 sizeof(cfgtew->u.cfgte64->lun))) {
1123 if (res->bus == cfgtew->u.cfgte->res_addr.bus &&
1124 res->target == cfgtew->u.cfgte->res_addr.target &&
1125 res->lun == cfgtew->u.cfgte->res_addr.lun)
1133 * ipr_format_res_path - Format the resource path for printing.
1134 * @res_path: resource path
1140 static char *ipr_format_res_path(u8 *res_path, char *buffer, int len)
1146 p += snprintf(p, buffer + len - p, "%02X", res_path[0]);
1147 for (i = 1; res_path[i] != 0xff && ((i * 3) < len); i++)
1148 p += snprintf(p, buffer + len - p, "-%02X", res_path[i]);
1154 * ipr_update_res_entry - Update the resource entry.
1155 * @res: resource entry struct
1156 * @cfgtew: config table entry wrapper struct
1161 static void ipr_update_res_entry(struct ipr_resource_entry *res,
1162 struct ipr_config_table_entry_wrapper *cfgtew)
1164 char buffer[IPR_MAX_RES_PATH_LENGTH];
1168 if (res->ioa_cfg->sis64) {
1169 res->flags = cfgtew->u.cfgte64->flags;
1170 res->res_flags = cfgtew->u.cfgte64->res_flags;
1171 res->type = cfgtew->u.cfgte64->res_type & 0x0f;
1173 memcpy(&res->std_inq_data, &cfgtew->u.cfgte64->std_inq_data,
1174 sizeof(struct ipr_std_inq_data));
1176 res->qmodel = IPR_QUEUEING_MODEL64(res);
1177 proto = cfgtew->u.cfgte64->proto;
1178 res->res_handle = cfgtew->u.cfgte64->res_handle;
1179 res->dev_id = cfgtew->u.cfgte64->dev_id;
1181 memcpy(&res->dev_lun.scsi_lun, &cfgtew->u.cfgte64->lun,
1182 sizeof(res->dev_lun.scsi_lun));
1184 if (memcmp(res->res_path, &cfgtew->u.cfgte64->res_path,
1185 sizeof(res->res_path))) {
1186 memcpy(res->res_path, &cfgtew->u.cfgte64->res_path,
1187 sizeof(res->res_path));
1191 if (res->sdev && new_path)
1192 sdev_printk(KERN_INFO, res->sdev, "Resource path: %s\n",
1193 ipr_format_res_path(res->res_path, buffer,
1196 res->flags = cfgtew->u.cfgte->flags;
1197 if (res->flags & IPR_IS_IOA_RESOURCE)
1198 res->type = IPR_RES_TYPE_IOAFP;
1200 res->type = cfgtew->u.cfgte->rsvd_subtype & 0x0f;
1202 memcpy(&res->std_inq_data, &cfgtew->u.cfgte->std_inq_data,
1203 sizeof(struct ipr_std_inq_data));
1205 res->qmodel = IPR_QUEUEING_MODEL(res);
1206 proto = cfgtew->u.cfgte->proto;
1207 res->res_handle = cfgtew->u.cfgte->res_handle;
1210 ipr_update_ata_class(res, proto);
1214 * ipr_clear_res_target - Clear the bit in the bit map representing the target
1216 * @res: resource entry struct
1217 * @cfgtew: config table entry wrapper struct
1222 static void ipr_clear_res_target(struct ipr_resource_entry *res)
1224 struct ipr_resource_entry *gscsi_res = NULL;
1225 struct ipr_ioa_cfg *ioa_cfg = res->ioa_cfg;
1227 if (!ioa_cfg->sis64)
1230 if (res->bus == IPR_ARRAY_VIRTUAL_BUS)
1231 clear_bit(res->target, ioa_cfg->array_ids);
1232 else if (res->bus == IPR_VSET_VIRTUAL_BUS)
1233 clear_bit(res->target, ioa_cfg->vset_ids);
1234 else if (res->bus == 0 && res->type == IPR_RES_TYPE_GENERIC_SCSI) {
1235 list_for_each_entry(gscsi_res, &ioa_cfg->used_res_q, queue)
1236 if (gscsi_res->dev_id == res->dev_id && gscsi_res != res)
1238 clear_bit(res->target, ioa_cfg->target_ids);
1240 } else if (res->bus == 0)
1241 clear_bit(res->target, ioa_cfg->target_ids);
1245 * ipr_handle_config_change - Handle a config change from the adapter
1246 * @ioa_cfg: ioa config struct
1252 static void ipr_handle_config_change(struct ipr_ioa_cfg *ioa_cfg,
1253 struct ipr_hostrcb *hostrcb)
1255 struct ipr_resource_entry *res = NULL;
1256 struct ipr_config_table_entry_wrapper cfgtew;
1257 __be32 cc_res_handle;
1261 if (ioa_cfg->sis64) {
1262 cfgtew.u.cfgte64 = &hostrcb->hcam.u.ccn.u.cfgte64;
1263 cc_res_handle = cfgtew.u.cfgte64->res_handle;
1265 cfgtew.u.cfgte = &hostrcb->hcam.u.ccn.u.cfgte;
1266 cc_res_handle = cfgtew.u.cfgte->res_handle;
1269 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) {
1270 if (res->res_handle == cc_res_handle) {
1277 if (list_empty(&ioa_cfg->free_res_q)) {
1278 ipr_send_hcam(ioa_cfg,
1279 IPR_HCAM_CDB_OP_CODE_CONFIG_CHANGE,
1284 res = list_entry(ioa_cfg->free_res_q.next,
1285 struct ipr_resource_entry, queue);
1287 list_del(&res->queue);
1288 ipr_init_res_entry(res, &cfgtew);
1289 list_add_tail(&res->queue, &ioa_cfg->used_res_q);
1292 ipr_update_res_entry(res, &cfgtew);
1294 if (hostrcb->hcam.notify_type == IPR_HOST_RCB_NOTIF_TYPE_REM_ENTRY) {
1296 res->del_from_ml = 1;
1297 res->res_handle = IPR_INVALID_RES_HANDLE;
1298 if (ioa_cfg->allow_ml_add_del)
1299 schedule_work(&ioa_cfg->work_q);
1301 ipr_clear_res_target(res);
1302 list_move_tail(&res->queue, &ioa_cfg->free_res_q);
1304 } else if (!res->sdev) {
1306 if (ioa_cfg->allow_ml_add_del)
1307 schedule_work(&ioa_cfg->work_q);
1310 ipr_send_hcam(ioa_cfg, IPR_HCAM_CDB_OP_CODE_CONFIG_CHANGE, hostrcb);
1314 * ipr_process_ccn - Op done function for a CCN.
1315 * @ipr_cmd: ipr command struct
1317 * This function is the op done function for a configuration
1318 * change notification host controlled async from the adapter.
1323 static void ipr_process_ccn(struct ipr_cmnd *ipr_cmd)
1325 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
1326 struct ipr_hostrcb *hostrcb = ipr_cmd->u.hostrcb;
1327 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
1329 list_del(&hostrcb->queue);
1330 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
1333 if (ioasc != IPR_IOASC_IOA_WAS_RESET)
1334 dev_err(&ioa_cfg->pdev->dev,
1335 "Host RCB failed with IOASC: 0x%08X\n", ioasc);
1337 ipr_send_hcam(ioa_cfg, IPR_HCAM_CDB_OP_CODE_CONFIG_CHANGE, hostrcb);
1339 ipr_handle_config_change(ioa_cfg, hostrcb);
1344 * strip_and_pad_whitespace - Strip and pad trailing whitespace.
1345 * @i: index into buffer
1346 * @buf: string to modify
1348 * This function will strip all trailing whitespace, pad the end
1349 * of the string with a single space, and NULL terminate the string.
1352 * new length of string
1354 static int strip_and_pad_whitespace(int i, char *buf)
1356 while (i && buf[i] == ' ')
1364 * ipr_log_vpd_compact - Log the passed extended VPD compactly.
1365 * @prefix: string to print at start of printk
1366 * @hostrcb: hostrcb pointer
1367 * @vpd: vendor/product id/sn struct
1372 static void ipr_log_vpd_compact(char *prefix, struct ipr_hostrcb *hostrcb,
1373 struct ipr_vpd *vpd)
1375 char buffer[IPR_VENDOR_ID_LEN + IPR_PROD_ID_LEN + IPR_SERIAL_NUM_LEN + 3];
1378 memcpy(buffer, vpd->vpids.vendor_id, IPR_VENDOR_ID_LEN);
1379 i = strip_and_pad_whitespace(IPR_VENDOR_ID_LEN - 1, buffer);
1381 memcpy(&buffer[i], vpd->vpids.product_id, IPR_PROD_ID_LEN);
1382 i = strip_and_pad_whitespace(i + IPR_PROD_ID_LEN - 1, buffer);
1384 memcpy(&buffer[i], vpd->sn, IPR_SERIAL_NUM_LEN);
1385 buffer[IPR_SERIAL_NUM_LEN + i] = '\0';
1387 ipr_hcam_err(hostrcb, "%s VPID/SN: %s\n", prefix, buffer);
1391 * ipr_log_vpd - Log the passed VPD to the error log.
1392 * @vpd: vendor/product id/sn struct
1397 static void ipr_log_vpd(struct ipr_vpd *vpd)
1399 char buffer[IPR_VENDOR_ID_LEN + IPR_PROD_ID_LEN
1400 + IPR_SERIAL_NUM_LEN];
1402 memcpy(buffer, vpd->vpids.vendor_id, IPR_VENDOR_ID_LEN);
1403 memcpy(buffer + IPR_VENDOR_ID_LEN, vpd->vpids.product_id,
1405 buffer[IPR_VENDOR_ID_LEN + IPR_PROD_ID_LEN] = '\0';
1406 ipr_err("Vendor/Product ID: %s\n", buffer);
1408 memcpy(buffer, vpd->sn, IPR_SERIAL_NUM_LEN);
1409 buffer[IPR_SERIAL_NUM_LEN] = '\0';
1410 ipr_err(" Serial Number: %s\n", buffer);
1414 * ipr_log_ext_vpd_compact - Log the passed extended VPD compactly.
1415 * @prefix: string to print at start of printk
1416 * @hostrcb: hostrcb pointer
1417 * @vpd: vendor/product id/sn/wwn struct
1422 static void ipr_log_ext_vpd_compact(char *prefix, struct ipr_hostrcb *hostrcb,
1423 struct ipr_ext_vpd *vpd)
1425 ipr_log_vpd_compact(prefix, hostrcb, &vpd->vpd);
1426 ipr_hcam_err(hostrcb, "%s WWN: %08X%08X\n", prefix,
1427 be32_to_cpu(vpd->wwid[0]), be32_to_cpu(vpd->wwid[1]));
1431 * ipr_log_ext_vpd - Log the passed extended VPD to the error log.
1432 * @vpd: vendor/product id/sn/wwn struct
1437 static void ipr_log_ext_vpd(struct ipr_ext_vpd *vpd)
1439 ipr_log_vpd(&vpd->vpd);
1440 ipr_err(" WWN: %08X%08X\n", be32_to_cpu(vpd->wwid[0]),
1441 be32_to_cpu(vpd->wwid[1]));
1445 * ipr_log_enhanced_cache_error - Log a cache error.
1446 * @ioa_cfg: ioa config struct
1447 * @hostrcb: hostrcb struct
1452 static void ipr_log_enhanced_cache_error(struct ipr_ioa_cfg *ioa_cfg,
1453 struct ipr_hostrcb *hostrcb)
1455 struct ipr_hostrcb_type_12_error *error;
1458 error = &hostrcb->hcam.u.error64.u.type_12_error;
1460 error = &hostrcb->hcam.u.error.u.type_12_error;
1462 ipr_err("-----Current Configuration-----\n");
1463 ipr_err("Cache Directory Card Information:\n");
1464 ipr_log_ext_vpd(&error->ioa_vpd);
1465 ipr_err("Adapter Card Information:\n");
1466 ipr_log_ext_vpd(&error->cfc_vpd);
1468 ipr_err("-----Expected Configuration-----\n");
1469 ipr_err("Cache Directory Card Information:\n");
1470 ipr_log_ext_vpd(&error->ioa_last_attached_to_cfc_vpd);
1471 ipr_err("Adapter Card Information:\n");
1472 ipr_log_ext_vpd(&error->cfc_last_attached_to_ioa_vpd);
1474 ipr_err("Additional IOA Data: %08X %08X %08X\n",
1475 be32_to_cpu(error->ioa_data[0]),
1476 be32_to_cpu(error->ioa_data[1]),
1477 be32_to_cpu(error->ioa_data[2]));
1481 * ipr_log_cache_error - Log a cache error.
1482 * @ioa_cfg: ioa config struct
1483 * @hostrcb: hostrcb struct
1488 static void ipr_log_cache_error(struct ipr_ioa_cfg *ioa_cfg,
1489 struct ipr_hostrcb *hostrcb)
1491 struct ipr_hostrcb_type_02_error *error =
1492 &hostrcb->hcam.u.error.u.type_02_error;
1494 ipr_err("-----Current Configuration-----\n");
1495 ipr_err("Cache Directory Card Information:\n");
1496 ipr_log_vpd(&error->ioa_vpd);
1497 ipr_err("Adapter Card Information:\n");
1498 ipr_log_vpd(&error->cfc_vpd);
1500 ipr_err("-----Expected Configuration-----\n");
1501 ipr_err("Cache Directory Card Information:\n");
1502 ipr_log_vpd(&error->ioa_last_attached_to_cfc_vpd);
1503 ipr_err("Adapter Card Information:\n");
1504 ipr_log_vpd(&error->cfc_last_attached_to_ioa_vpd);
1506 ipr_err("Additional IOA Data: %08X %08X %08X\n",
1507 be32_to_cpu(error->ioa_data[0]),
1508 be32_to_cpu(error->ioa_data[1]),
1509 be32_to_cpu(error->ioa_data[2]));
1513 * ipr_log_enhanced_config_error - Log a configuration error.
1514 * @ioa_cfg: ioa config struct
1515 * @hostrcb: hostrcb struct
1520 static void ipr_log_enhanced_config_error(struct ipr_ioa_cfg *ioa_cfg,
1521 struct ipr_hostrcb *hostrcb)
1523 int errors_logged, i;
1524 struct ipr_hostrcb_device_data_entry_enhanced *dev_entry;
1525 struct ipr_hostrcb_type_13_error *error;
1527 error = &hostrcb->hcam.u.error.u.type_13_error;
1528 errors_logged = be32_to_cpu(error->errors_logged);
1530 ipr_err("Device Errors Detected/Logged: %d/%d\n",
1531 be32_to_cpu(error->errors_detected), errors_logged);
1533 dev_entry = error->dev;
1535 for (i = 0; i < errors_logged; i++, dev_entry++) {
1538 ipr_phys_res_err(ioa_cfg, dev_entry->dev_res_addr, "Device %d", i + 1);
1539 ipr_log_ext_vpd(&dev_entry->vpd);
1541 ipr_err("-----New Device Information-----\n");
1542 ipr_log_ext_vpd(&dev_entry->new_vpd);
1544 ipr_err("Cache Directory Card Information:\n");
1545 ipr_log_ext_vpd(&dev_entry->ioa_last_with_dev_vpd);
1547 ipr_err("Adapter Card Information:\n");
1548 ipr_log_ext_vpd(&dev_entry->cfc_last_with_dev_vpd);
1553 * ipr_log_sis64_config_error - Log a device error.
1554 * @ioa_cfg: ioa config struct
1555 * @hostrcb: hostrcb struct
1560 static void ipr_log_sis64_config_error(struct ipr_ioa_cfg *ioa_cfg,
1561 struct ipr_hostrcb *hostrcb)
1563 int errors_logged, i;
1564 struct ipr_hostrcb64_device_data_entry_enhanced *dev_entry;
1565 struct ipr_hostrcb_type_23_error *error;
1566 char buffer[IPR_MAX_RES_PATH_LENGTH];
1568 error = &hostrcb->hcam.u.error64.u.type_23_error;
1569 errors_logged = be32_to_cpu(error->errors_logged);
1571 ipr_err("Device Errors Detected/Logged: %d/%d\n",
1572 be32_to_cpu(error->errors_detected), errors_logged);
1574 dev_entry = error->dev;
1576 for (i = 0; i < errors_logged; i++, dev_entry++) {
1579 ipr_err("Device %d : %s", i + 1,
1580 ipr_format_res_path(dev_entry->res_path, buffer,
1582 ipr_log_ext_vpd(&dev_entry->vpd);
1584 ipr_err("-----New Device Information-----\n");
1585 ipr_log_ext_vpd(&dev_entry->new_vpd);
1587 ipr_err("Cache Directory Card Information:\n");
1588 ipr_log_ext_vpd(&dev_entry->ioa_last_with_dev_vpd);
1590 ipr_err("Adapter Card Information:\n");
1591 ipr_log_ext_vpd(&dev_entry->cfc_last_with_dev_vpd);
1596 * ipr_log_config_error - Log a configuration error.
1597 * @ioa_cfg: ioa config struct
1598 * @hostrcb: hostrcb struct
1603 static void ipr_log_config_error(struct ipr_ioa_cfg *ioa_cfg,
1604 struct ipr_hostrcb *hostrcb)
1606 int errors_logged, i;
1607 struct ipr_hostrcb_device_data_entry *dev_entry;
1608 struct ipr_hostrcb_type_03_error *error;
1610 error = &hostrcb->hcam.u.error.u.type_03_error;
1611 errors_logged = be32_to_cpu(error->errors_logged);
1613 ipr_err("Device Errors Detected/Logged: %d/%d\n",
1614 be32_to_cpu(error->errors_detected), errors_logged);
1616 dev_entry = error->dev;
1618 for (i = 0; i < errors_logged; i++, dev_entry++) {
1621 ipr_phys_res_err(ioa_cfg, dev_entry->dev_res_addr, "Device %d", i + 1);
1622 ipr_log_vpd(&dev_entry->vpd);
1624 ipr_err("-----New Device Information-----\n");
1625 ipr_log_vpd(&dev_entry->new_vpd);
1627 ipr_err("Cache Directory Card Information:\n");
1628 ipr_log_vpd(&dev_entry->ioa_last_with_dev_vpd);
1630 ipr_err("Adapter Card Information:\n");
1631 ipr_log_vpd(&dev_entry->cfc_last_with_dev_vpd);
1633 ipr_err("Additional IOA Data: %08X %08X %08X %08X %08X\n",
1634 be32_to_cpu(dev_entry->ioa_data[0]),
1635 be32_to_cpu(dev_entry->ioa_data[1]),
1636 be32_to_cpu(dev_entry->ioa_data[2]),
1637 be32_to_cpu(dev_entry->ioa_data[3]),
1638 be32_to_cpu(dev_entry->ioa_data[4]));
1643 * ipr_log_enhanced_array_error - Log an array configuration error.
1644 * @ioa_cfg: ioa config struct
1645 * @hostrcb: hostrcb struct
1650 static void ipr_log_enhanced_array_error(struct ipr_ioa_cfg *ioa_cfg,
1651 struct ipr_hostrcb *hostrcb)
1654 struct ipr_hostrcb_type_14_error *error;
1655 struct ipr_hostrcb_array_data_entry_enhanced *array_entry;
1656 const u8 zero_sn[IPR_SERIAL_NUM_LEN] = { [0 ... IPR_SERIAL_NUM_LEN-1] = '0' };
1658 error = &hostrcb->hcam.u.error.u.type_14_error;
1662 ipr_err("RAID %s Array Configuration: %d:%d:%d:%d\n",
1663 error->protection_level,
1664 ioa_cfg->host->host_no,
1665 error->last_func_vset_res_addr.bus,
1666 error->last_func_vset_res_addr.target,
1667 error->last_func_vset_res_addr.lun);
1671 array_entry = error->array_member;
1672 num_entries = min_t(u32, be32_to_cpu(error->num_entries),
1673 sizeof(error->array_member));
1675 for (i = 0; i < num_entries; i++, array_entry++) {
1676 if (!memcmp(array_entry->vpd.vpd.sn, zero_sn, IPR_SERIAL_NUM_LEN))
1679 if (be32_to_cpu(error->exposed_mode_adn) == i)
1680 ipr_err("Exposed Array Member %d:\n", i);
1682 ipr_err("Array Member %d:\n", i);
1684 ipr_log_ext_vpd(&array_entry->vpd);
1685 ipr_phys_res_err(ioa_cfg, array_entry->dev_res_addr, "Current Location");
1686 ipr_phys_res_err(ioa_cfg, array_entry->expected_dev_res_addr,
1687 "Expected Location");
1694 * ipr_log_array_error - Log an array configuration error.
1695 * @ioa_cfg: ioa config struct
1696 * @hostrcb: hostrcb struct
1701 static void ipr_log_array_error(struct ipr_ioa_cfg *ioa_cfg,
1702 struct ipr_hostrcb *hostrcb)
1705 struct ipr_hostrcb_type_04_error *error;
1706 struct ipr_hostrcb_array_data_entry *array_entry;
1707 const u8 zero_sn[IPR_SERIAL_NUM_LEN] = { [0 ... IPR_SERIAL_NUM_LEN-1] = '0' };
1709 error = &hostrcb->hcam.u.error.u.type_04_error;
1713 ipr_err("RAID %s Array Configuration: %d:%d:%d:%d\n",
1714 error->protection_level,
1715 ioa_cfg->host->host_no,
1716 error->last_func_vset_res_addr.bus,
1717 error->last_func_vset_res_addr.target,
1718 error->last_func_vset_res_addr.lun);
1722 array_entry = error->array_member;
1724 for (i = 0; i < 18; i++) {
1725 if (!memcmp(array_entry->vpd.sn, zero_sn, IPR_SERIAL_NUM_LEN))
1728 if (be32_to_cpu(error->exposed_mode_adn) == i)
1729 ipr_err("Exposed Array Member %d:\n", i);
1731 ipr_err("Array Member %d:\n", i);
1733 ipr_log_vpd(&array_entry->vpd);
1735 ipr_phys_res_err(ioa_cfg, array_entry->dev_res_addr, "Current Location");
1736 ipr_phys_res_err(ioa_cfg, array_entry->expected_dev_res_addr,
1737 "Expected Location");
1742 array_entry = error->array_member2;
1749 * ipr_log_hex_data - Log additional hex IOA error data.
1750 * @ioa_cfg: ioa config struct
1751 * @data: IOA error data
1757 static void ipr_log_hex_data(struct ipr_ioa_cfg *ioa_cfg, u32 *data, int len)
1764 if (ioa_cfg->log_level <= IPR_DEFAULT_LOG_LEVEL)
1765 len = min_t(int, len, IPR_DEFAULT_MAX_ERROR_DUMP);
1767 for (i = 0; i < len / 4; i += 4) {
1768 ipr_err("%08X: %08X %08X %08X %08X\n", i*4,
1769 be32_to_cpu(data[i]),
1770 be32_to_cpu(data[i+1]),
1771 be32_to_cpu(data[i+2]),
1772 be32_to_cpu(data[i+3]));
1777 * ipr_log_enhanced_dual_ioa_error - Log an enhanced dual adapter error.
1778 * @ioa_cfg: ioa config struct
1779 * @hostrcb: hostrcb struct
1784 static void ipr_log_enhanced_dual_ioa_error(struct ipr_ioa_cfg *ioa_cfg,
1785 struct ipr_hostrcb *hostrcb)
1787 struct ipr_hostrcb_type_17_error *error;
1790 error = &hostrcb->hcam.u.error64.u.type_17_error;
1792 error = &hostrcb->hcam.u.error.u.type_17_error;
1794 error->failure_reason[sizeof(error->failure_reason) - 1] = '\0';
1795 strim(error->failure_reason);
1797 ipr_hcam_err(hostrcb, "%s [PRC: %08X]\n", error->failure_reason,
1798 be32_to_cpu(hostrcb->hcam.u.error.prc));
1799 ipr_log_ext_vpd_compact("Remote IOA", hostrcb, &error->vpd);
1800 ipr_log_hex_data(ioa_cfg, error->data,
1801 be32_to_cpu(hostrcb->hcam.length) -
1802 (offsetof(struct ipr_hostrcb_error, u) +
1803 offsetof(struct ipr_hostrcb_type_17_error, data)));
1807 * ipr_log_dual_ioa_error - Log a dual adapter error.
1808 * @ioa_cfg: ioa config struct
1809 * @hostrcb: hostrcb struct
1814 static void ipr_log_dual_ioa_error(struct ipr_ioa_cfg *ioa_cfg,
1815 struct ipr_hostrcb *hostrcb)
1817 struct ipr_hostrcb_type_07_error *error;
1819 error = &hostrcb->hcam.u.error.u.type_07_error;
1820 error->failure_reason[sizeof(error->failure_reason) - 1] = '\0';
1821 strim(error->failure_reason);
1823 ipr_hcam_err(hostrcb, "%s [PRC: %08X]\n", error->failure_reason,
1824 be32_to_cpu(hostrcb->hcam.u.error.prc));
1825 ipr_log_vpd_compact("Remote IOA", hostrcb, &error->vpd);
1826 ipr_log_hex_data(ioa_cfg, error->data,
1827 be32_to_cpu(hostrcb->hcam.length) -
1828 (offsetof(struct ipr_hostrcb_error, u) +
1829 offsetof(struct ipr_hostrcb_type_07_error, data)));
1832 static const struct {
1835 } path_active_desc[] = {
1836 { IPR_PATH_NO_INFO, "Path" },
1837 { IPR_PATH_ACTIVE, "Active path" },
1838 { IPR_PATH_NOT_ACTIVE, "Inactive path" }
1841 static const struct {
1844 } path_state_desc[] = {
1845 { IPR_PATH_STATE_NO_INFO, "has no path state information available" },
1846 { IPR_PATH_HEALTHY, "is healthy" },
1847 { IPR_PATH_DEGRADED, "is degraded" },
1848 { IPR_PATH_FAILED, "is failed" }
1852 * ipr_log_fabric_path - Log a fabric path error
1853 * @hostrcb: hostrcb struct
1854 * @fabric: fabric descriptor
1859 static void ipr_log_fabric_path(struct ipr_hostrcb *hostrcb,
1860 struct ipr_hostrcb_fabric_desc *fabric)
1863 u8 path_state = fabric->path_state;
1864 u8 active = path_state & IPR_PATH_ACTIVE_MASK;
1865 u8 state = path_state & IPR_PATH_STATE_MASK;
1867 for (i = 0; i < ARRAY_SIZE(path_active_desc); i++) {
1868 if (path_active_desc[i].active != active)
1871 for (j = 0; j < ARRAY_SIZE(path_state_desc); j++) {
1872 if (path_state_desc[j].state != state)
1875 if (fabric->cascaded_expander == 0xff && fabric->phy == 0xff) {
1876 ipr_hcam_err(hostrcb, "%s %s: IOA Port=%d\n",
1877 path_active_desc[i].desc, path_state_desc[j].desc,
1879 } else if (fabric->cascaded_expander == 0xff) {
1880 ipr_hcam_err(hostrcb, "%s %s: IOA Port=%d, Phy=%d\n",
1881 path_active_desc[i].desc, path_state_desc[j].desc,
1882 fabric->ioa_port, fabric->phy);
1883 } else if (fabric->phy == 0xff) {
1884 ipr_hcam_err(hostrcb, "%s %s: IOA Port=%d, Cascade=%d\n",
1885 path_active_desc[i].desc, path_state_desc[j].desc,
1886 fabric->ioa_port, fabric->cascaded_expander);
1888 ipr_hcam_err(hostrcb, "%s %s: IOA Port=%d, Cascade=%d, Phy=%d\n",
1889 path_active_desc[i].desc, path_state_desc[j].desc,
1890 fabric->ioa_port, fabric->cascaded_expander, fabric->phy);
1896 ipr_err("Path state=%02X IOA Port=%d Cascade=%d Phy=%d\n", path_state,
1897 fabric->ioa_port, fabric->cascaded_expander, fabric->phy);
1901 * ipr_log64_fabric_path - Log a fabric path error
1902 * @hostrcb: hostrcb struct
1903 * @fabric: fabric descriptor
1908 static void ipr_log64_fabric_path(struct ipr_hostrcb *hostrcb,
1909 struct ipr_hostrcb64_fabric_desc *fabric)
1912 u8 path_state = fabric->path_state;
1913 u8 active = path_state & IPR_PATH_ACTIVE_MASK;
1914 u8 state = path_state & IPR_PATH_STATE_MASK;
1915 char buffer[IPR_MAX_RES_PATH_LENGTH];
1917 for (i = 0; i < ARRAY_SIZE(path_active_desc); i++) {
1918 if (path_active_desc[i].active != active)
1921 for (j = 0; j < ARRAY_SIZE(path_state_desc); j++) {
1922 if (path_state_desc[j].state != state)
1925 ipr_hcam_err(hostrcb, "%s %s: Resource Path=%s\n",
1926 path_active_desc[i].desc, path_state_desc[j].desc,
1927 ipr_format_res_path(fabric->res_path, buffer,
1933 ipr_err("Path state=%02X Resource Path=%s\n", path_state,
1934 ipr_format_res_path(fabric->res_path, buffer, sizeof(buffer)));
1937 static const struct {
1940 } path_type_desc[] = {
1941 { IPR_PATH_CFG_IOA_PORT, "IOA port" },
1942 { IPR_PATH_CFG_EXP_PORT, "Expander port" },
1943 { IPR_PATH_CFG_DEVICE_PORT, "Device port" },
1944 { IPR_PATH_CFG_DEVICE_LUN, "Device LUN" }
1947 static const struct {
1950 } path_status_desc[] = {
1951 { IPR_PATH_CFG_NO_PROB, "Functional" },
1952 { IPR_PATH_CFG_DEGRADED, "Degraded" },
1953 { IPR_PATH_CFG_FAILED, "Failed" },
1954 { IPR_PATH_CFG_SUSPECT, "Suspect" },
1955 { IPR_PATH_NOT_DETECTED, "Missing" },
1956 { IPR_PATH_INCORRECT_CONN, "Incorrectly connected" }
1959 static const char *link_rate[] = {
1962 "phy reset problem",
1979 * ipr_log_path_elem - Log a fabric path element.
1980 * @hostrcb: hostrcb struct
1981 * @cfg: fabric path element struct
1986 static void ipr_log_path_elem(struct ipr_hostrcb *hostrcb,
1987 struct ipr_hostrcb_config_element *cfg)
1990 u8 type = cfg->type_status & IPR_PATH_CFG_TYPE_MASK;
1991 u8 status = cfg->type_status & IPR_PATH_CFG_STATUS_MASK;
1993 if (type == IPR_PATH_CFG_NOT_EXIST)
1996 for (i = 0; i < ARRAY_SIZE(path_type_desc); i++) {
1997 if (path_type_desc[i].type != type)
2000 for (j = 0; j < ARRAY_SIZE(path_status_desc); j++) {
2001 if (path_status_desc[j].status != status)
2004 if (type == IPR_PATH_CFG_IOA_PORT) {
2005 ipr_hcam_err(hostrcb, "%s %s: Phy=%d, Link rate=%s, WWN=%08X%08X\n",
2006 path_status_desc[j].desc, path_type_desc[i].desc,
2007 cfg->phy, link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK],
2008 be32_to_cpu(cfg->wwid[0]), be32_to_cpu(cfg->wwid[1]));
2010 if (cfg->cascaded_expander == 0xff && cfg->phy == 0xff) {
2011 ipr_hcam_err(hostrcb, "%s %s: Link rate=%s, WWN=%08X%08X\n",
2012 path_status_desc[j].desc, path_type_desc[i].desc,
2013 link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK],
2014 be32_to_cpu(cfg->wwid[0]), be32_to_cpu(cfg->wwid[1]));
2015 } else if (cfg->cascaded_expander == 0xff) {
2016 ipr_hcam_err(hostrcb, "%s %s: Phy=%d, Link rate=%s, "
2017 "WWN=%08X%08X\n", path_status_desc[j].desc,
2018 path_type_desc[i].desc, cfg->phy,
2019 link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK],
2020 be32_to_cpu(cfg->wwid[0]), be32_to_cpu(cfg->wwid[1]));
2021 } else if (cfg->phy == 0xff) {
2022 ipr_hcam_err(hostrcb, "%s %s: Cascade=%d, Link rate=%s, "
2023 "WWN=%08X%08X\n", path_status_desc[j].desc,
2024 path_type_desc[i].desc, cfg->cascaded_expander,
2025 link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK],
2026 be32_to_cpu(cfg->wwid[0]), be32_to_cpu(cfg->wwid[1]));
2028 ipr_hcam_err(hostrcb, "%s %s: Cascade=%d, Phy=%d, Link rate=%s "
2029 "WWN=%08X%08X\n", path_status_desc[j].desc,
2030 path_type_desc[i].desc, cfg->cascaded_expander, cfg->phy,
2031 link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK],
2032 be32_to_cpu(cfg->wwid[0]), be32_to_cpu(cfg->wwid[1]));
2039 ipr_hcam_err(hostrcb, "Path element=%02X: Cascade=%d Phy=%d Link rate=%s "
2040 "WWN=%08X%08X\n", cfg->type_status, cfg->cascaded_expander, cfg->phy,
2041 link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK],
2042 be32_to_cpu(cfg->wwid[0]), be32_to_cpu(cfg->wwid[1]));
2046 * ipr_log64_path_elem - Log a fabric path element.
2047 * @hostrcb: hostrcb struct
2048 * @cfg: fabric path element struct
2053 static void ipr_log64_path_elem(struct ipr_hostrcb *hostrcb,
2054 struct ipr_hostrcb64_config_element *cfg)
2057 u8 desc_id = cfg->descriptor_id & IPR_DESCRIPTOR_MASK;
2058 u8 type = cfg->type_status & IPR_PATH_CFG_TYPE_MASK;
2059 u8 status = cfg->type_status & IPR_PATH_CFG_STATUS_MASK;
2060 char buffer[IPR_MAX_RES_PATH_LENGTH];
2062 if (type == IPR_PATH_CFG_NOT_EXIST || desc_id != IPR_DESCRIPTOR_SIS64)
2065 for (i = 0; i < ARRAY_SIZE(path_type_desc); i++) {
2066 if (path_type_desc[i].type != type)
2069 for (j = 0; j < ARRAY_SIZE(path_status_desc); j++) {
2070 if (path_status_desc[j].status != status)
2073 ipr_hcam_err(hostrcb, "%s %s: Resource Path=%s, Link rate=%s, WWN=%08X%08X\n",
2074 path_status_desc[j].desc, path_type_desc[i].desc,
2075 ipr_format_res_path(cfg->res_path, buffer,
2077 link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK],
2078 be32_to_cpu(cfg->wwid[0]), be32_to_cpu(cfg->wwid[1]));
2082 ipr_hcam_err(hostrcb, "Path element=%02X: Resource Path=%s, Link rate=%s "
2083 "WWN=%08X%08X\n", cfg->type_status,
2084 ipr_format_res_path(cfg->res_path, buffer, sizeof(buffer)),
2085 link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK],
2086 be32_to_cpu(cfg->wwid[0]), be32_to_cpu(cfg->wwid[1]));
2090 * ipr_log_fabric_error - Log a fabric error.
2091 * @ioa_cfg: ioa config struct
2092 * @hostrcb: hostrcb struct
2097 static void ipr_log_fabric_error(struct ipr_ioa_cfg *ioa_cfg,
2098 struct ipr_hostrcb *hostrcb)
2100 struct ipr_hostrcb_type_20_error *error;
2101 struct ipr_hostrcb_fabric_desc *fabric;
2102 struct ipr_hostrcb_config_element *cfg;
2105 error = &hostrcb->hcam.u.error.u.type_20_error;
2106 error->failure_reason[sizeof(error->failure_reason) - 1] = '\0';
2107 ipr_hcam_err(hostrcb, "%s\n", error->failure_reason);
2109 add_len = be32_to_cpu(hostrcb->hcam.length) -
2110 (offsetof(struct ipr_hostrcb_error, u) +
2111 offsetof(struct ipr_hostrcb_type_20_error, desc));
2113 for (i = 0, fabric = error->desc; i < error->num_entries; i++) {
2114 ipr_log_fabric_path(hostrcb, fabric);
2115 for_each_fabric_cfg(fabric, cfg)
2116 ipr_log_path_elem(hostrcb, cfg);
2118 add_len -= be16_to_cpu(fabric->length);
2119 fabric = (struct ipr_hostrcb_fabric_desc *)
2120 ((unsigned long)fabric + be16_to_cpu(fabric->length));
2123 ipr_log_hex_data(ioa_cfg, (u32 *)fabric, add_len);
2127 * ipr_log_sis64_array_error - Log a sis64 array error.
2128 * @ioa_cfg: ioa config struct
2129 * @hostrcb: hostrcb struct
2134 static void ipr_log_sis64_array_error(struct ipr_ioa_cfg *ioa_cfg,
2135 struct ipr_hostrcb *hostrcb)
2138 struct ipr_hostrcb_type_24_error *error;
2139 struct ipr_hostrcb64_array_data_entry *array_entry;
2140 char buffer[IPR_MAX_RES_PATH_LENGTH];
2141 const u8 zero_sn[IPR_SERIAL_NUM_LEN] = { [0 ... IPR_SERIAL_NUM_LEN-1] = '0' };
2143 error = &hostrcb->hcam.u.error64.u.type_24_error;
2147 ipr_err("RAID %s Array Configuration: %s\n",
2148 error->protection_level,
2149 ipr_format_res_path(error->last_res_path, buffer, sizeof(buffer)));
2153 array_entry = error->array_member;
2154 num_entries = min_t(u32, be32_to_cpu(error->num_entries),
2155 sizeof(error->array_member));
2157 for (i = 0; i < num_entries; i++, array_entry++) {
2159 if (!memcmp(array_entry->vpd.vpd.sn, zero_sn, IPR_SERIAL_NUM_LEN))
2162 if (error->exposed_mode_adn == i)
2163 ipr_err("Exposed Array Member %d:\n", i);
2165 ipr_err("Array Member %d:\n", i);
2167 ipr_err("Array Member %d:\n", i);
2168 ipr_log_ext_vpd(&array_entry->vpd);
2169 ipr_err("Current Location: %s",
2170 ipr_format_res_path(array_entry->res_path, buffer,
2172 ipr_err("Expected Location: %s",
2173 ipr_format_res_path(array_entry->expected_res_path,
2174 buffer, sizeof(buffer)));
2181 * ipr_log_sis64_fabric_error - Log a sis64 fabric error.
2182 * @ioa_cfg: ioa config struct
2183 * @hostrcb: hostrcb struct
2188 static void ipr_log_sis64_fabric_error(struct ipr_ioa_cfg *ioa_cfg,
2189 struct ipr_hostrcb *hostrcb)
2191 struct ipr_hostrcb_type_30_error *error;
2192 struct ipr_hostrcb64_fabric_desc *fabric;
2193 struct ipr_hostrcb64_config_element *cfg;
2196 error = &hostrcb->hcam.u.error64.u.type_30_error;
2198 error->failure_reason[sizeof(error->failure_reason) - 1] = '\0';
2199 ipr_hcam_err(hostrcb, "%s\n", error->failure_reason);
2201 add_len = be32_to_cpu(hostrcb->hcam.length) -
2202 (offsetof(struct ipr_hostrcb64_error, u) +
2203 offsetof(struct ipr_hostrcb_type_30_error, desc));
2205 for (i = 0, fabric = error->desc; i < error->num_entries; i++) {
2206 ipr_log64_fabric_path(hostrcb, fabric);
2207 for_each_fabric_cfg(fabric, cfg)
2208 ipr_log64_path_elem(hostrcb, cfg);
2210 add_len -= be16_to_cpu(fabric->length);
2211 fabric = (struct ipr_hostrcb64_fabric_desc *)
2212 ((unsigned long)fabric + be16_to_cpu(fabric->length));
2215 ipr_log_hex_data(ioa_cfg, (u32 *)fabric, add_len);
2219 * ipr_log_generic_error - Log an adapter error.
2220 * @ioa_cfg: ioa config struct
2221 * @hostrcb: hostrcb struct
2226 static void ipr_log_generic_error(struct ipr_ioa_cfg *ioa_cfg,
2227 struct ipr_hostrcb *hostrcb)
2229 ipr_log_hex_data(ioa_cfg, hostrcb->hcam.u.raw.data,
2230 be32_to_cpu(hostrcb->hcam.length));
2234 * ipr_get_error - Find the specfied IOASC in the ipr_error_table.
2237 * This function will return the index of into the ipr_error_table
2238 * for the specified IOASC. If the IOASC is not in the table,
2239 * 0 will be returned, which points to the entry used for unknown errors.
2242 * index into the ipr_error_table
2244 static u32 ipr_get_error(u32 ioasc)
2248 for (i = 0; i < ARRAY_SIZE(ipr_error_table); i++)
2249 if (ipr_error_table[i].ioasc == (ioasc & IPR_IOASC_IOASC_MASK))
2256 * ipr_handle_log_data - Log an adapter error.
2257 * @ioa_cfg: ioa config struct
2258 * @hostrcb: hostrcb struct
2260 * This function logs an adapter error to the system.
2265 static void ipr_handle_log_data(struct ipr_ioa_cfg *ioa_cfg,
2266 struct ipr_hostrcb *hostrcb)
2271 if (hostrcb->hcam.notify_type != IPR_HOST_RCB_NOTIF_TYPE_ERROR_LOG_ENTRY)
2274 if (hostrcb->hcam.notifications_lost == IPR_HOST_RCB_NOTIFICATIONS_LOST)
2275 dev_err(&ioa_cfg->pdev->dev, "Error notifications lost\n");
2278 ioasc = be32_to_cpu(hostrcb->hcam.u.error64.fd_ioasc);
2280 ioasc = be32_to_cpu(hostrcb->hcam.u.error.fd_ioasc);
2282 if (!ioa_cfg->sis64 && (ioasc == IPR_IOASC_BUS_WAS_RESET ||
2283 ioasc == IPR_IOASC_BUS_WAS_RESET_BY_OTHER)) {
2284 /* Tell the midlayer we had a bus reset so it will handle the UA properly */
2285 scsi_report_bus_reset(ioa_cfg->host,
2286 hostrcb->hcam.u.error.fd_res_addr.bus);
2289 error_index = ipr_get_error(ioasc);
2291 if (!ipr_error_table[error_index].log_hcam)
2294 ipr_hcam_err(hostrcb, "%s\n", ipr_error_table[error_index].error);
2296 /* Set indication we have logged an error */
2297 ioa_cfg->errors_logged++;
2299 if (ioa_cfg->log_level < ipr_error_table[error_index].log_hcam)
2301 if (be32_to_cpu(hostrcb->hcam.length) > sizeof(hostrcb->hcam.u.raw))
2302 hostrcb->hcam.length = cpu_to_be32(sizeof(hostrcb->hcam.u.raw));
2304 switch (hostrcb->hcam.overlay_id) {
2305 case IPR_HOST_RCB_OVERLAY_ID_2:
2306 ipr_log_cache_error(ioa_cfg, hostrcb);
2308 case IPR_HOST_RCB_OVERLAY_ID_3:
2309 ipr_log_config_error(ioa_cfg, hostrcb);
2311 case IPR_HOST_RCB_OVERLAY_ID_4:
2312 case IPR_HOST_RCB_OVERLAY_ID_6:
2313 ipr_log_array_error(ioa_cfg, hostrcb);
2315 case IPR_HOST_RCB_OVERLAY_ID_7:
2316 ipr_log_dual_ioa_error(ioa_cfg, hostrcb);
2318 case IPR_HOST_RCB_OVERLAY_ID_12:
2319 ipr_log_enhanced_cache_error(ioa_cfg, hostrcb);
2321 case IPR_HOST_RCB_OVERLAY_ID_13:
2322 ipr_log_enhanced_config_error(ioa_cfg, hostrcb);
2324 case IPR_HOST_RCB_OVERLAY_ID_14:
2325 case IPR_HOST_RCB_OVERLAY_ID_16:
2326 ipr_log_enhanced_array_error(ioa_cfg, hostrcb);
2328 case IPR_HOST_RCB_OVERLAY_ID_17:
2329 ipr_log_enhanced_dual_ioa_error(ioa_cfg, hostrcb);
2331 case IPR_HOST_RCB_OVERLAY_ID_20:
2332 ipr_log_fabric_error(ioa_cfg, hostrcb);
2334 case IPR_HOST_RCB_OVERLAY_ID_23:
2335 ipr_log_sis64_config_error(ioa_cfg, hostrcb);
2337 case IPR_HOST_RCB_OVERLAY_ID_24:
2338 case IPR_HOST_RCB_OVERLAY_ID_26:
2339 ipr_log_sis64_array_error(ioa_cfg, hostrcb);
2341 case IPR_HOST_RCB_OVERLAY_ID_30:
2342 ipr_log_sis64_fabric_error(ioa_cfg, hostrcb);
2344 case IPR_HOST_RCB_OVERLAY_ID_1:
2345 case IPR_HOST_RCB_OVERLAY_ID_DEFAULT:
2347 ipr_log_generic_error(ioa_cfg, hostrcb);
2353 * ipr_process_error - Op done function for an adapter error log.
2354 * @ipr_cmd: ipr command struct
2356 * This function is the op done function for an error log host
2357 * controlled async from the adapter. It will log the error and
2358 * send the HCAM back to the adapter.
2363 static void ipr_process_error(struct ipr_cmnd *ipr_cmd)
2365 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
2366 struct ipr_hostrcb *hostrcb = ipr_cmd->u.hostrcb;
2367 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
2371 fd_ioasc = be32_to_cpu(hostrcb->hcam.u.error64.fd_ioasc);
2373 fd_ioasc = be32_to_cpu(hostrcb->hcam.u.error.fd_ioasc);
2375 list_del(&hostrcb->queue);
2376 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
2379 ipr_handle_log_data(ioa_cfg, hostrcb);
2380 if (fd_ioasc == IPR_IOASC_NR_IOA_RESET_REQUIRED)
2381 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_ABBREV);
2382 } else if (ioasc != IPR_IOASC_IOA_WAS_RESET) {
2383 dev_err(&ioa_cfg->pdev->dev,
2384 "Host RCB failed with IOASC: 0x%08X\n", ioasc);
2387 ipr_send_hcam(ioa_cfg, IPR_HCAM_CDB_OP_CODE_LOG_DATA, hostrcb);
2391 * ipr_timeout - An internally generated op has timed out.
2392 * @ipr_cmd: ipr command struct
2394 * This function blocks host requests and initiates an
2400 static void ipr_timeout(struct ipr_cmnd *ipr_cmd)
2402 unsigned long lock_flags = 0;
2403 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
2406 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
2408 ioa_cfg->errors_logged++;
2409 dev_err(&ioa_cfg->pdev->dev,
2410 "Adapter being reset due to command timeout.\n");
2412 if (WAIT_FOR_DUMP == ioa_cfg->sdt_state)
2413 ioa_cfg->sdt_state = GET_DUMP;
2415 if (!ioa_cfg->in_reset_reload || ioa_cfg->reset_cmd == ipr_cmd)
2416 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
2418 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
2423 * ipr_oper_timeout - Adapter timed out transitioning to operational
2424 * @ipr_cmd: ipr command struct
2426 * This function blocks host requests and initiates an
2432 static void ipr_oper_timeout(struct ipr_cmnd *ipr_cmd)
2434 unsigned long lock_flags = 0;
2435 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
2438 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
2440 ioa_cfg->errors_logged++;
2441 dev_err(&ioa_cfg->pdev->dev,
2442 "Adapter timed out transitioning to operational.\n");
2444 if (WAIT_FOR_DUMP == ioa_cfg->sdt_state)
2445 ioa_cfg->sdt_state = GET_DUMP;
2447 if (!ioa_cfg->in_reset_reload || ioa_cfg->reset_cmd == ipr_cmd) {
2449 ioa_cfg->reset_retries += IPR_NUM_RESET_RELOAD_RETRIES;
2450 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
2453 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
2458 * ipr_reset_reload - Reset/Reload the IOA
2459 * @ioa_cfg: ioa config struct
2460 * @shutdown_type: shutdown type
2462 * This function resets the adapter and re-initializes it.
2463 * This function assumes that all new host commands have been stopped.
2467 static int ipr_reset_reload(struct ipr_ioa_cfg *ioa_cfg,
2468 enum ipr_shutdown_type shutdown_type)
2470 if (!ioa_cfg->in_reset_reload)
2471 ipr_initiate_ioa_reset(ioa_cfg, shutdown_type);
2473 spin_unlock_irq(ioa_cfg->host->host_lock);
2474 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
2475 spin_lock_irq(ioa_cfg->host->host_lock);
2477 /* If we got hit with a host reset while we were already resetting
2478 the adapter for some reason, and the reset failed. */
2479 if (ioa_cfg->ioa_is_dead) {
2488 * ipr_find_ses_entry - Find matching SES in SES table
2489 * @res: resource entry struct of SES
2492 * pointer to SES table entry / NULL on failure
2494 static const struct ipr_ses_table_entry *
2495 ipr_find_ses_entry(struct ipr_resource_entry *res)
2498 struct ipr_std_inq_vpids *vpids;
2499 const struct ipr_ses_table_entry *ste = ipr_ses_table;
2501 for (i = 0; i < ARRAY_SIZE(ipr_ses_table); i++, ste++) {
2502 for (j = 0, matches = 0; j < IPR_PROD_ID_LEN; j++) {
2503 if (ste->compare_product_id_byte[j] == 'X') {
2504 vpids = &res->std_inq_data.vpids;
2505 if (vpids->product_id[j] == ste->product_id[j])
2513 if (matches == IPR_PROD_ID_LEN)
2521 * ipr_get_max_scsi_speed - Determine max SCSI speed for a given bus
2522 * @ioa_cfg: ioa config struct
2524 * @bus_width: bus width
2527 * SCSI bus speed in units of 100KHz, 1600 is 160 MHz
2528 * For a 2-byte wide SCSI bus, the maximum transfer speed is
2529 * twice the maximum transfer rate (e.g. for a wide enabled bus,
2530 * max 160MHz = max 320MB/sec).
2532 static u32 ipr_get_max_scsi_speed(struct ipr_ioa_cfg *ioa_cfg, u8 bus, u8 bus_width)
2534 struct ipr_resource_entry *res;
2535 const struct ipr_ses_table_entry *ste;
2536 u32 max_xfer_rate = IPR_MAX_SCSI_RATE(bus_width);
2538 /* Loop through each config table entry in the config table buffer */
2539 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) {
2540 if (!(IPR_IS_SES_DEVICE(res->std_inq_data)))
2543 if (bus != res->bus)
2546 if (!(ste = ipr_find_ses_entry(res)))
2549 max_xfer_rate = (ste->max_bus_speed_limit * 10) / (bus_width / 8);
2552 return max_xfer_rate;
2556 * ipr_wait_iodbg_ack - Wait for an IODEBUG ACK from the IOA
2557 * @ioa_cfg: ioa config struct
2558 * @max_delay: max delay in micro-seconds to wait
2560 * Waits for an IODEBUG ACK from the IOA, doing busy looping.
2563 * 0 on success / other on failure
2565 static int ipr_wait_iodbg_ack(struct ipr_ioa_cfg *ioa_cfg, int max_delay)
2567 volatile u32 pcii_reg;
2570 /* Read interrupt reg until IOA signals IO Debug Acknowledge */
2571 while (delay < max_delay) {
2572 pcii_reg = readl(ioa_cfg->regs.sense_interrupt_reg);
2574 if (pcii_reg & IPR_PCII_IO_DEBUG_ACKNOWLEDGE)
2577 /* udelay cannot be used if delay is more than a few milliseconds */
2578 if ((delay / 1000) > MAX_UDELAY_MS)
2579 mdelay(delay / 1000);
2589 * ipr_get_sis64_dump_data_section - Dump IOA memory
2590 * @ioa_cfg: ioa config struct
2591 * @start_addr: adapter address to dump
2592 * @dest: destination kernel buffer
2593 * @length_in_words: length to dump in 4 byte words
2598 static int ipr_get_sis64_dump_data_section(struct ipr_ioa_cfg *ioa_cfg,
2600 __be32 *dest, u32 length_in_words)
2604 for (i = 0; i < length_in_words; i++) {
2605 writel(start_addr+(i*4), ioa_cfg->regs.dump_addr_reg);
2606 *dest = cpu_to_be32(readl(ioa_cfg->regs.dump_data_reg));
2614 * ipr_get_ldump_data_section - Dump IOA memory
2615 * @ioa_cfg: ioa config struct
2616 * @start_addr: adapter address to dump
2617 * @dest: destination kernel buffer
2618 * @length_in_words: length to dump in 4 byte words
2621 * 0 on success / -EIO on failure
2623 static int ipr_get_ldump_data_section(struct ipr_ioa_cfg *ioa_cfg,
2625 __be32 *dest, u32 length_in_words)
2627 volatile u32 temp_pcii_reg;
2631 return ipr_get_sis64_dump_data_section(ioa_cfg, start_addr,
2632 dest, length_in_words);
2634 /* Write IOA interrupt reg starting LDUMP state */
2635 writel((IPR_UPROCI_RESET_ALERT | IPR_UPROCI_IO_DEBUG_ALERT),
2636 ioa_cfg->regs.set_uproc_interrupt_reg32);
2638 /* Wait for IO debug acknowledge */
2639 if (ipr_wait_iodbg_ack(ioa_cfg,
2640 IPR_LDUMP_MAX_LONG_ACK_DELAY_IN_USEC)) {
2641 dev_err(&ioa_cfg->pdev->dev,
2642 "IOA dump long data transfer timeout\n");
2646 /* Signal LDUMP interlocked - clear IO debug ack */
2647 writel(IPR_PCII_IO_DEBUG_ACKNOWLEDGE,
2648 ioa_cfg->regs.clr_interrupt_reg);
2650 /* Write Mailbox with starting address */
2651 writel(start_addr, ioa_cfg->ioa_mailbox);
2653 /* Signal address valid - clear IOA Reset alert */
2654 writel(IPR_UPROCI_RESET_ALERT,
2655 ioa_cfg->regs.clr_uproc_interrupt_reg32);
2657 for (i = 0; i < length_in_words; i++) {
2658 /* Wait for IO debug acknowledge */
2659 if (ipr_wait_iodbg_ack(ioa_cfg,
2660 IPR_LDUMP_MAX_SHORT_ACK_DELAY_IN_USEC)) {
2661 dev_err(&ioa_cfg->pdev->dev,
2662 "IOA dump short data transfer timeout\n");
2666 /* Read data from mailbox and increment destination pointer */
2667 *dest = cpu_to_be32(readl(ioa_cfg->ioa_mailbox));
2670 /* For all but the last word of data, signal data received */
2671 if (i < (length_in_words - 1)) {
2672 /* Signal dump data received - Clear IO debug Ack */
2673 writel(IPR_PCII_IO_DEBUG_ACKNOWLEDGE,
2674 ioa_cfg->regs.clr_interrupt_reg);
2678 /* Signal end of block transfer. Set reset alert then clear IO debug ack */
2679 writel(IPR_UPROCI_RESET_ALERT,
2680 ioa_cfg->regs.set_uproc_interrupt_reg32);
2682 writel(IPR_UPROCI_IO_DEBUG_ALERT,
2683 ioa_cfg->regs.clr_uproc_interrupt_reg32);
2685 /* Signal dump data received - Clear IO debug Ack */
2686 writel(IPR_PCII_IO_DEBUG_ACKNOWLEDGE,
2687 ioa_cfg->regs.clr_interrupt_reg);
2689 /* Wait for IOA to signal LDUMP exit - IOA reset alert will be cleared */
2690 while (delay < IPR_LDUMP_MAX_SHORT_ACK_DELAY_IN_USEC) {
2692 readl(ioa_cfg->regs.sense_uproc_interrupt_reg32);
2694 if (!(temp_pcii_reg & IPR_UPROCI_RESET_ALERT))
2704 #ifdef CONFIG_SCSI_IPR_DUMP
2706 * ipr_sdt_copy - Copy Smart Dump Table to kernel buffer
2707 * @ioa_cfg: ioa config struct
2708 * @pci_address: adapter address
2709 * @length: length of data to copy
2711 * Copy data from PCI adapter to kernel buffer.
2712 * Note: length MUST be a 4 byte multiple
2714 * 0 on success / other on failure
2716 static int ipr_sdt_copy(struct ipr_ioa_cfg *ioa_cfg,
2717 unsigned long pci_address, u32 length)
2719 int bytes_copied = 0;
2720 int cur_len, rc, rem_len, rem_page_len;
2722 unsigned long lock_flags = 0;
2723 struct ipr_ioa_dump *ioa_dump = &ioa_cfg->dump->ioa_dump;
2725 while (bytes_copied < length &&
2726 (ioa_dump->hdr.len + bytes_copied) < IPR_MAX_IOA_DUMP_SIZE) {
2727 if (ioa_dump->page_offset >= PAGE_SIZE ||
2728 ioa_dump->page_offset == 0) {
2729 page = (__be32 *)__get_free_page(GFP_ATOMIC);
2733 return bytes_copied;
2736 ioa_dump->page_offset = 0;
2737 ioa_dump->ioa_data[ioa_dump->next_page_index] = page;
2738 ioa_dump->next_page_index++;
2740 page = ioa_dump->ioa_data[ioa_dump->next_page_index - 1];
2742 rem_len = length - bytes_copied;
2743 rem_page_len = PAGE_SIZE - ioa_dump->page_offset;
2744 cur_len = min(rem_len, rem_page_len);
2746 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
2747 if (ioa_cfg->sdt_state == ABORT_DUMP) {
2750 rc = ipr_get_ldump_data_section(ioa_cfg,
2751 pci_address + bytes_copied,
2752 &page[ioa_dump->page_offset / 4],
2753 (cur_len / sizeof(u32)));
2755 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
2758 ioa_dump->page_offset += cur_len;
2759 bytes_copied += cur_len;
2767 return bytes_copied;
2771 * ipr_init_dump_entry_hdr - Initialize a dump entry header.
2772 * @hdr: dump entry header struct
2777 static void ipr_init_dump_entry_hdr(struct ipr_dump_entry_header *hdr)
2779 hdr->eye_catcher = IPR_DUMP_EYE_CATCHER;
2781 hdr->offset = sizeof(*hdr);
2782 hdr->status = IPR_DUMP_STATUS_SUCCESS;
2786 * ipr_dump_ioa_type_data - Fill in the adapter type in the dump.
2787 * @ioa_cfg: ioa config struct
2788 * @driver_dump: driver dump struct
2793 static void ipr_dump_ioa_type_data(struct ipr_ioa_cfg *ioa_cfg,
2794 struct ipr_driver_dump *driver_dump)
2796 struct ipr_inquiry_page3 *ucode_vpd = &ioa_cfg->vpd_cbs->page3_data;
2798 ipr_init_dump_entry_hdr(&driver_dump->ioa_type_entry.hdr);
2799 driver_dump->ioa_type_entry.hdr.len =
2800 sizeof(struct ipr_dump_ioa_type_entry) -
2801 sizeof(struct ipr_dump_entry_header);
2802 driver_dump->ioa_type_entry.hdr.data_type = IPR_DUMP_DATA_TYPE_BINARY;
2803 driver_dump->ioa_type_entry.hdr.id = IPR_DUMP_DRIVER_TYPE_ID;
2804 driver_dump->ioa_type_entry.type = ioa_cfg->type;
2805 driver_dump->ioa_type_entry.fw_version = (ucode_vpd->major_release << 24) |
2806 (ucode_vpd->card_type << 16) | (ucode_vpd->minor_release[0] << 8) |
2807 ucode_vpd->minor_release[1];
2808 driver_dump->hdr.num_entries++;
2812 * ipr_dump_version_data - Fill in the driver version in the dump.
2813 * @ioa_cfg: ioa config struct
2814 * @driver_dump: driver dump struct
2819 static void ipr_dump_version_data(struct ipr_ioa_cfg *ioa_cfg,
2820 struct ipr_driver_dump *driver_dump)
2822 ipr_init_dump_entry_hdr(&driver_dump->version_entry.hdr);
2823 driver_dump->version_entry.hdr.len =
2824 sizeof(struct ipr_dump_version_entry) -
2825 sizeof(struct ipr_dump_entry_header);
2826 driver_dump->version_entry.hdr.data_type = IPR_DUMP_DATA_TYPE_ASCII;
2827 driver_dump->version_entry.hdr.id = IPR_DUMP_DRIVER_VERSION_ID;
2828 strcpy(driver_dump->version_entry.version, IPR_DRIVER_VERSION);
2829 driver_dump->hdr.num_entries++;
2833 * ipr_dump_trace_data - Fill in the IOA trace in the dump.
2834 * @ioa_cfg: ioa config struct
2835 * @driver_dump: driver dump struct
2840 static void ipr_dump_trace_data(struct ipr_ioa_cfg *ioa_cfg,
2841 struct ipr_driver_dump *driver_dump)
2843 ipr_init_dump_entry_hdr(&driver_dump->trace_entry.hdr);
2844 driver_dump->trace_entry.hdr.len =
2845 sizeof(struct ipr_dump_trace_entry) -
2846 sizeof(struct ipr_dump_entry_header);
2847 driver_dump->trace_entry.hdr.data_type = IPR_DUMP_DATA_TYPE_BINARY;
2848 driver_dump->trace_entry.hdr.id = IPR_DUMP_TRACE_ID;
2849 memcpy(driver_dump->trace_entry.trace, ioa_cfg->trace, IPR_TRACE_SIZE);
2850 driver_dump->hdr.num_entries++;
2854 * ipr_dump_location_data - Fill in the IOA location in the dump.
2855 * @ioa_cfg: ioa config struct
2856 * @driver_dump: driver dump struct
2861 static void ipr_dump_location_data(struct ipr_ioa_cfg *ioa_cfg,
2862 struct ipr_driver_dump *driver_dump)
2864 ipr_init_dump_entry_hdr(&driver_dump->location_entry.hdr);
2865 driver_dump->location_entry.hdr.len =
2866 sizeof(struct ipr_dump_location_entry) -
2867 sizeof(struct ipr_dump_entry_header);
2868 driver_dump->location_entry.hdr.data_type = IPR_DUMP_DATA_TYPE_ASCII;
2869 driver_dump->location_entry.hdr.id = IPR_DUMP_LOCATION_ID;
2870 strcpy(driver_dump->location_entry.location, dev_name(&ioa_cfg->pdev->dev));
2871 driver_dump->hdr.num_entries++;
2875 * ipr_get_ioa_dump - Perform a dump of the driver and adapter.
2876 * @ioa_cfg: ioa config struct
2877 * @dump: dump struct
2882 static void ipr_get_ioa_dump(struct ipr_ioa_cfg *ioa_cfg, struct ipr_dump *dump)
2884 unsigned long start_addr, sdt_word;
2885 unsigned long lock_flags = 0;
2886 struct ipr_driver_dump *driver_dump = &dump->driver_dump;
2887 struct ipr_ioa_dump *ioa_dump = &dump->ioa_dump;
2888 u32 num_entries, start_off, end_off;
2889 u32 bytes_to_copy, bytes_copied, rc;
2890 struct ipr_sdt *sdt;
2896 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
2898 if (ioa_cfg->sdt_state != GET_DUMP) {
2899 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
2903 start_addr = readl(ioa_cfg->ioa_mailbox);
2905 if (!ioa_cfg->sis64 && !ipr_sdt_is_fmt2(start_addr)) {
2906 dev_err(&ioa_cfg->pdev->dev,
2907 "Invalid dump table format: %lx\n", start_addr);
2908 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
2912 dev_err(&ioa_cfg->pdev->dev, "Dump of IOA initiated\n");
2914 driver_dump->hdr.eye_catcher = IPR_DUMP_EYE_CATCHER;
2916 /* Initialize the overall dump header */
2917 driver_dump->hdr.len = sizeof(struct ipr_driver_dump);
2918 driver_dump->hdr.num_entries = 1;
2919 driver_dump->hdr.first_entry_offset = sizeof(struct ipr_dump_header);
2920 driver_dump->hdr.status = IPR_DUMP_STATUS_SUCCESS;
2921 driver_dump->hdr.os = IPR_DUMP_OS_LINUX;
2922 driver_dump->hdr.driver_name = IPR_DUMP_DRIVER_NAME;
2924 ipr_dump_version_data(ioa_cfg, driver_dump);
2925 ipr_dump_location_data(ioa_cfg, driver_dump);
2926 ipr_dump_ioa_type_data(ioa_cfg, driver_dump);
2927 ipr_dump_trace_data(ioa_cfg, driver_dump);
2929 /* Update dump_header */
2930 driver_dump->hdr.len += sizeof(struct ipr_dump_entry_header);
2932 /* IOA Dump entry */
2933 ipr_init_dump_entry_hdr(&ioa_dump->hdr);
2934 ioa_dump->hdr.len = 0;
2935 ioa_dump->hdr.data_type = IPR_DUMP_DATA_TYPE_BINARY;
2936 ioa_dump->hdr.id = IPR_DUMP_IOA_DUMP_ID;
2938 /* First entries in sdt are actually a list of dump addresses and
2939 lengths to gather the real dump data. sdt represents the pointer
2940 to the ioa generated dump table. Dump data will be extracted based
2941 on entries in this table */
2942 sdt = &ioa_dump->sdt;
2944 rc = ipr_get_ldump_data_section(ioa_cfg, start_addr, (__be32 *)sdt,
2945 sizeof(struct ipr_sdt) / sizeof(__be32));
2947 /* Smart Dump table is ready to use and the first entry is valid */
2948 if (rc || ((be32_to_cpu(sdt->hdr.state) != IPR_FMT3_SDT_READY_TO_USE) &&
2949 (be32_to_cpu(sdt->hdr.state) != IPR_FMT2_SDT_READY_TO_USE))) {
2950 dev_err(&ioa_cfg->pdev->dev,
2951 "Dump of IOA failed. Dump table not valid: %d, %X.\n",
2952 rc, be32_to_cpu(sdt->hdr.state));
2953 driver_dump->hdr.status = IPR_DUMP_STATUS_FAILED;
2954 ioa_cfg->sdt_state = DUMP_OBTAINED;
2955 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
2959 num_entries = be32_to_cpu(sdt->hdr.num_entries_used);
2961 if (num_entries > IPR_NUM_SDT_ENTRIES)
2962 num_entries = IPR_NUM_SDT_ENTRIES;
2964 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
2966 for (i = 0; i < num_entries; i++) {
2967 if (ioa_dump->hdr.len > IPR_MAX_IOA_DUMP_SIZE) {
2968 driver_dump->hdr.status = IPR_DUMP_STATUS_QUAL_SUCCESS;
2972 if (sdt->entry[i].flags & IPR_SDT_VALID_ENTRY) {
2973 sdt_word = be32_to_cpu(sdt->entry[i].start_token);
2975 bytes_to_copy = be32_to_cpu(sdt->entry[i].end_token);
2977 start_off = sdt_word & IPR_FMT2_MBX_ADDR_MASK;
2978 end_off = be32_to_cpu(sdt->entry[i].end_token);
2980 if (ipr_sdt_is_fmt2(sdt_word) && sdt_word)
2981 bytes_to_copy = end_off - start_off;
2986 if (bytes_to_copy > IPR_MAX_IOA_DUMP_SIZE) {
2987 sdt->entry[i].flags &= ~IPR_SDT_VALID_ENTRY;
2991 /* Copy data from adapter to driver buffers */
2992 bytes_copied = ipr_sdt_copy(ioa_cfg, sdt_word,
2995 ioa_dump->hdr.len += bytes_copied;
2997 if (bytes_copied != bytes_to_copy) {
2998 driver_dump->hdr.status = IPR_DUMP_STATUS_QUAL_SUCCESS;
3005 dev_err(&ioa_cfg->pdev->dev, "Dump of IOA completed.\n");
3007 /* Update dump_header */
3008 driver_dump->hdr.len += ioa_dump->hdr.len;
3010 ioa_cfg->sdt_state = DUMP_OBTAINED;
3015 #define ipr_get_ioa_dump(ioa_cfg, dump) do { } while(0)
3019 * ipr_release_dump - Free adapter dump memory
3020 * @kref: kref struct
3025 static void ipr_release_dump(struct kref *kref)
3027 struct ipr_dump *dump = container_of(kref,struct ipr_dump,kref);
3028 struct ipr_ioa_cfg *ioa_cfg = dump->ioa_cfg;
3029 unsigned long lock_flags = 0;
3033 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3034 ioa_cfg->dump = NULL;
3035 ioa_cfg->sdt_state = INACTIVE;
3036 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3038 for (i = 0; i < dump->ioa_dump.next_page_index; i++)
3039 free_page((unsigned long) dump->ioa_dump.ioa_data[i]);
3046 * ipr_worker_thread - Worker thread
3047 * @work: ioa config struct
3049 * Called at task level from a work thread. This function takes care
3050 * of adding and removing device from the mid-layer as configuration
3051 * changes are detected by the adapter.
3056 static void ipr_worker_thread(struct work_struct *work)
3058 unsigned long lock_flags;
3059 struct ipr_resource_entry *res;
3060 struct scsi_device *sdev;
3061 struct ipr_dump *dump;
3062 struct ipr_ioa_cfg *ioa_cfg =
3063 container_of(work, struct ipr_ioa_cfg, work_q);
3064 u8 bus, target, lun;
3068 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3070 if (ioa_cfg->sdt_state == GET_DUMP) {
3071 dump = ioa_cfg->dump;
3073 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3076 kref_get(&dump->kref);
3077 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3078 ipr_get_ioa_dump(ioa_cfg, dump);
3079 kref_put(&dump->kref, ipr_release_dump);
3081 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3082 if (ioa_cfg->sdt_state == DUMP_OBTAINED)
3083 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
3084 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3091 if (!ioa_cfg->allow_cmds || !ioa_cfg->allow_ml_add_del) {
3092 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3096 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) {
3097 if (res->del_from_ml && res->sdev) {
3100 if (!scsi_device_get(sdev)) {
3101 list_move_tail(&res->queue, &ioa_cfg->free_res_q);
3102 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3103 scsi_remove_device(sdev);
3104 scsi_device_put(sdev);
3105 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3112 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) {
3113 if (res->add_to_ml) {
3115 target = res->target;
3118 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3119 scsi_add_device(ioa_cfg->host, bus, target, lun);
3120 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3125 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3126 kobject_uevent(&ioa_cfg->host->shost_dev.kobj, KOBJ_CHANGE);
3130 #ifdef CONFIG_SCSI_IPR_TRACE
3132 * ipr_read_trace - Dump the adapter trace
3133 * @filp: open sysfs file
3134 * @kobj: kobject struct
3135 * @bin_attr: bin_attribute struct
3138 * @count: buffer size
3141 * number of bytes printed to buffer
3143 static ssize_t ipr_read_trace(struct file *filp, struct kobject *kobj,
3144 struct bin_attribute *bin_attr,
3145 char *buf, loff_t off, size_t count)
3147 struct device *dev = container_of(kobj, struct device, kobj);
3148 struct Scsi_Host *shost = class_to_shost(dev);
3149 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
3150 unsigned long lock_flags = 0;
3153 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3154 ret = memory_read_from_buffer(buf, count, &off, ioa_cfg->trace,
3156 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3161 static struct bin_attribute ipr_trace_attr = {
3167 .read = ipr_read_trace,
3172 * ipr_show_fw_version - Show the firmware version
3173 * @dev: class device struct
3177 * number of bytes printed to buffer
3179 static ssize_t ipr_show_fw_version(struct device *dev,
3180 struct device_attribute *attr, char *buf)
3182 struct Scsi_Host *shost = class_to_shost(dev);
3183 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
3184 struct ipr_inquiry_page3 *ucode_vpd = &ioa_cfg->vpd_cbs->page3_data;
3185 unsigned long lock_flags = 0;
3188 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3189 len = snprintf(buf, PAGE_SIZE, "%02X%02X%02X%02X\n",
3190 ucode_vpd->major_release, ucode_vpd->card_type,
3191 ucode_vpd->minor_release[0],
3192 ucode_vpd->minor_release[1]);
3193 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3197 static struct device_attribute ipr_fw_version_attr = {
3199 .name = "fw_version",
3202 .show = ipr_show_fw_version,
3206 * ipr_show_log_level - Show the adapter's error logging level
3207 * @dev: class device struct
3211 * number of bytes printed to buffer
3213 static ssize_t ipr_show_log_level(struct device *dev,
3214 struct device_attribute *attr, char *buf)
3216 struct Scsi_Host *shost = class_to_shost(dev);
3217 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
3218 unsigned long lock_flags = 0;
3221 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3222 len = snprintf(buf, PAGE_SIZE, "%d\n", ioa_cfg->log_level);
3223 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3228 * ipr_store_log_level - Change the adapter's error logging level
3229 * @dev: class device struct
3233 * number of bytes printed to buffer
3235 static ssize_t ipr_store_log_level(struct device *dev,
3236 struct device_attribute *attr,
3237 const char *buf, size_t count)
3239 struct Scsi_Host *shost = class_to_shost(dev);
3240 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
3241 unsigned long lock_flags = 0;
3243 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3244 ioa_cfg->log_level = simple_strtoul(buf, NULL, 10);
3245 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3249 static struct device_attribute ipr_log_level_attr = {
3251 .name = "log_level",
3252 .mode = S_IRUGO | S_IWUSR,
3254 .show = ipr_show_log_level,
3255 .store = ipr_store_log_level
3259 * ipr_store_diagnostics - IOA Diagnostics interface
3260 * @dev: device struct
3262 * @count: buffer size
3264 * This function will reset the adapter and wait a reasonable
3265 * amount of time for any errors that the adapter might log.
3268 * count on success / other on failure
3270 static ssize_t ipr_store_diagnostics(struct device *dev,
3271 struct device_attribute *attr,
3272 const char *buf, size_t count)
3274 struct Scsi_Host *shost = class_to_shost(dev);
3275 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
3276 unsigned long lock_flags = 0;
3279 if (!capable(CAP_SYS_ADMIN))
3282 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3283 while(ioa_cfg->in_reset_reload) {
3284 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3285 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
3286 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3289 ioa_cfg->errors_logged = 0;
3290 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NORMAL);
3292 if (ioa_cfg->in_reset_reload) {
3293 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3294 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
3296 /* Wait for a second for any errors to be logged */
3299 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3303 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3304 if (ioa_cfg->in_reset_reload || ioa_cfg->errors_logged)
3306 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3311 static struct device_attribute ipr_diagnostics_attr = {
3313 .name = "run_diagnostics",
3316 .store = ipr_store_diagnostics
3320 * ipr_show_adapter_state - Show the adapter's state
3321 * @class_dev: device struct
3325 * number of bytes printed to buffer
3327 static ssize_t ipr_show_adapter_state(struct device *dev,
3328 struct device_attribute *attr, char *buf)
3330 struct Scsi_Host *shost = class_to_shost(dev);
3331 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
3332 unsigned long lock_flags = 0;
3335 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3336 if (ioa_cfg->ioa_is_dead)
3337 len = snprintf(buf, PAGE_SIZE, "offline\n");
3339 len = snprintf(buf, PAGE_SIZE, "online\n");
3340 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3345 * ipr_store_adapter_state - Change adapter state
3346 * @dev: device struct
3348 * @count: buffer size
3350 * This function will change the adapter's state.
3353 * count on success / other on failure
3355 static ssize_t ipr_store_adapter_state(struct device *dev,
3356 struct device_attribute *attr,
3357 const char *buf, size_t count)
3359 struct Scsi_Host *shost = class_to_shost(dev);
3360 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
3361 unsigned long lock_flags;
3364 if (!capable(CAP_SYS_ADMIN))
3367 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3368 if (ioa_cfg->ioa_is_dead && !strncmp(buf, "online", 6)) {
3369 ioa_cfg->ioa_is_dead = 0;
3370 ioa_cfg->reset_retries = 0;
3371 ioa_cfg->in_ioa_bringdown = 0;
3372 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
3374 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3375 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
3380 static struct device_attribute ipr_ioa_state_attr = {
3382 .name = "online_state",
3383 .mode = S_IRUGO | S_IWUSR,
3385 .show = ipr_show_adapter_state,
3386 .store = ipr_store_adapter_state
3390 * ipr_store_reset_adapter - Reset the adapter
3391 * @dev: device struct
3393 * @count: buffer size
3395 * This function will reset the adapter.
3398 * count on success / other on failure
3400 static ssize_t ipr_store_reset_adapter(struct device *dev,
3401 struct device_attribute *attr,
3402 const char *buf, size_t count)
3404 struct Scsi_Host *shost = class_to_shost(dev);
3405 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
3406 unsigned long lock_flags;
3409 if (!capable(CAP_SYS_ADMIN))
3412 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3413 if (!ioa_cfg->in_reset_reload)
3414 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NORMAL);
3415 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3416 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
3421 static struct device_attribute ipr_ioa_reset_attr = {
3423 .name = "reset_host",
3426 .store = ipr_store_reset_adapter
3430 * ipr_alloc_ucode_buffer - Allocates a microcode download buffer
3431 * @buf_len: buffer length
3433 * Allocates a DMA'able buffer in chunks and assembles a scatter/gather
3434 * list to use for microcode download
3437 * pointer to sglist / NULL on failure
3439 static struct ipr_sglist *ipr_alloc_ucode_buffer(int buf_len)
3441 int sg_size, order, bsize_elem, num_elem, i, j;
3442 struct ipr_sglist *sglist;
3443 struct scatterlist *scatterlist;
3446 /* Get the minimum size per scatter/gather element */
3447 sg_size = buf_len / (IPR_MAX_SGLIST - 1);
3449 /* Get the actual size per element */
3450 order = get_order(sg_size);
3452 /* Determine the actual number of bytes per element */
3453 bsize_elem = PAGE_SIZE * (1 << order);
3455 /* Determine the actual number of sg entries needed */
3456 if (buf_len % bsize_elem)
3457 num_elem = (buf_len / bsize_elem) + 1;
3459 num_elem = buf_len / bsize_elem;
3461 /* Allocate a scatter/gather list for the DMA */
3462 sglist = kzalloc(sizeof(struct ipr_sglist) +
3463 (sizeof(struct scatterlist) * (num_elem - 1)),
3466 if (sglist == NULL) {
3471 scatterlist = sglist->scatterlist;
3472 sg_init_table(scatterlist, num_elem);
3474 sglist->order = order;
3475 sglist->num_sg = num_elem;
3477 /* Allocate a bunch of sg elements */
3478 for (i = 0; i < num_elem; i++) {
3479 page = alloc_pages(GFP_KERNEL, order);
3483 /* Free up what we already allocated */
3484 for (j = i - 1; j >= 0; j--)
3485 __free_pages(sg_page(&scatterlist[j]), order);
3490 sg_set_page(&scatterlist[i], page, 0, 0);
3497 * ipr_free_ucode_buffer - Frees a microcode download buffer
3498 * @p_dnld: scatter/gather list pointer
3500 * Free a DMA'able ucode download buffer previously allocated with
3501 * ipr_alloc_ucode_buffer
3506 static void ipr_free_ucode_buffer(struct ipr_sglist *sglist)
3510 for (i = 0; i < sglist->num_sg; i++)
3511 __free_pages(sg_page(&sglist->scatterlist[i]), sglist->order);
3517 * ipr_copy_ucode_buffer - Copy user buffer to kernel buffer
3518 * @sglist: scatter/gather list pointer
3519 * @buffer: buffer pointer
3520 * @len: buffer length
3522 * Copy a microcode image from a user buffer into a buffer allocated by
3523 * ipr_alloc_ucode_buffer
3526 * 0 on success / other on failure
3528 static int ipr_copy_ucode_buffer(struct ipr_sglist *sglist,
3529 u8 *buffer, u32 len)
3531 int bsize_elem, i, result = 0;
3532 struct scatterlist *scatterlist;
3535 /* Determine the actual number of bytes per element */
3536 bsize_elem = PAGE_SIZE * (1 << sglist->order);
3538 scatterlist = sglist->scatterlist;
3540 for (i = 0; i < (len / bsize_elem); i++, buffer += bsize_elem) {
3541 struct page *page = sg_page(&scatterlist[i]);
3544 memcpy(kaddr, buffer, bsize_elem);
3547 scatterlist[i].length = bsize_elem;
3555 if (len % bsize_elem) {
3556 struct page *page = sg_page(&scatterlist[i]);
3559 memcpy(kaddr, buffer, len % bsize_elem);
3562 scatterlist[i].length = len % bsize_elem;
3565 sglist->buffer_len = len;
3570 * ipr_build_ucode_ioadl64 - Build a microcode download IOADL
3571 * @ipr_cmd: ipr command struct
3572 * @sglist: scatter/gather list
3574 * Builds a microcode download IOA data list (IOADL).
3577 static void ipr_build_ucode_ioadl64(struct ipr_cmnd *ipr_cmd,
3578 struct ipr_sglist *sglist)
3580 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
3581 struct ipr_ioadl64_desc *ioadl64 = ipr_cmd->i.ioadl64;
3582 struct scatterlist *scatterlist = sglist->scatterlist;
3585 ipr_cmd->dma_use_sg = sglist->num_dma_sg;
3586 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ;
3587 ioarcb->data_transfer_length = cpu_to_be32(sglist->buffer_len);
3590 cpu_to_be32(sizeof(struct ipr_ioadl64_desc) * ipr_cmd->dma_use_sg);
3591 for (i = 0; i < ipr_cmd->dma_use_sg; i++) {
3592 ioadl64[i].flags = cpu_to_be32(IPR_IOADL_FLAGS_WRITE);
3593 ioadl64[i].data_len = cpu_to_be32(sg_dma_len(&scatterlist[i]));
3594 ioadl64[i].address = cpu_to_be64(sg_dma_address(&scatterlist[i]));
3597 ioadl64[i-1].flags |= cpu_to_be32(IPR_IOADL_FLAGS_LAST);
3601 * ipr_build_ucode_ioadl - Build a microcode download IOADL
3602 * @ipr_cmd: ipr command struct
3603 * @sglist: scatter/gather list
3605 * Builds a microcode download IOA data list (IOADL).
3608 static void ipr_build_ucode_ioadl(struct ipr_cmnd *ipr_cmd,
3609 struct ipr_sglist *sglist)
3611 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
3612 struct ipr_ioadl_desc *ioadl = ipr_cmd->i.ioadl;
3613 struct scatterlist *scatterlist = sglist->scatterlist;
3616 ipr_cmd->dma_use_sg = sglist->num_dma_sg;
3617 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ;
3618 ioarcb->data_transfer_length = cpu_to_be32(sglist->buffer_len);
3621 cpu_to_be32(sizeof(struct ipr_ioadl_desc) * ipr_cmd->dma_use_sg);
3623 for (i = 0; i < ipr_cmd->dma_use_sg; i++) {
3624 ioadl[i].flags_and_data_len =
3625 cpu_to_be32(IPR_IOADL_FLAGS_WRITE | sg_dma_len(&scatterlist[i]));
3627 cpu_to_be32(sg_dma_address(&scatterlist[i]));
3630 ioadl[i-1].flags_and_data_len |=
3631 cpu_to_be32(IPR_IOADL_FLAGS_LAST);
3635 * ipr_update_ioa_ucode - Update IOA's microcode
3636 * @ioa_cfg: ioa config struct
3637 * @sglist: scatter/gather list
3639 * Initiate an adapter reset to update the IOA's microcode
3642 * 0 on success / -EIO on failure
3644 static int ipr_update_ioa_ucode(struct ipr_ioa_cfg *ioa_cfg,
3645 struct ipr_sglist *sglist)
3647 unsigned long lock_flags;
3649 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3650 while(ioa_cfg->in_reset_reload) {
3651 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3652 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
3653 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3656 if (ioa_cfg->ucode_sglist) {
3657 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3658 dev_err(&ioa_cfg->pdev->dev,
3659 "Microcode download already in progress\n");
3663 sglist->num_dma_sg = pci_map_sg(ioa_cfg->pdev, sglist->scatterlist,
3664 sglist->num_sg, DMA_TO_DEVICE);
3666 if (!sglist->num_dma_sg) {
3667 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3668 dev_err(&ioa_cfg->pdev->dev,
3669 "Failed to map microcode download buffer!\n");
3673 ioa_cfg->ucode_sglist = sglist;
3674 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NORMAL);
3675 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3676 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
3678 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3679 ioa_cfg->ucode_sglist = NULL;
3680 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3685 * ipr_store_update_fw - Update the firmware on the adapter
3686 * @class_dev: device struct
3688 * @count: buffer size
3690 * This function will update the firmware on the adapter.
3693 * count on success / other on failure
3695 static ssize_t ipr_store_update_fw(struct device *dev,
3696 struct device_attribute *attr,
3697 const char *buf, size_t count)
3699 struct Scsi_Host *shost = class_to_shost(dev);
3700 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
3701 struct ipr_ucode_image_header *image_hdr;
3702 const struct firmware *fw_entry;
3703 struct ipr_sglist *sglist;
3706 int len, result, dnld_size;
3708 if (!capable(CAP_SYS_ADMIN))
3711 len = snprintf(fname, 99, "%s", buf);
3712 fname[len-1] = '\0';
3714 if(request_firmware(&fw_entry, fname, &ioa_cfg->pdev->dev)) {
3715 dev_err(&ioa_cfg->pdev->dev, "Firmware file %s not found\n", fname);
3719 image_hdr = (struct ipr_ucode_image_header *)fw_entry->data;
3721 if (be32_to_cpu(image_hdr->header_length) > fw_entry->size ||
3722 (ioa_cfg->vpd_cbs->page3_data.card_type &&
3723 ioa_cfg->vpd_cbs->page3_data.card_type != image_hdr->card_type)) {
3724 dev_err(&ioa_cfg->pdev->dev, "Invalid microcode buffer\n");
3725 release_firmware(fw_entry);
3729 src = (u8 *)image_hdr + be32_to_cpu(image_hdr->header_length);
3730 dnld_size = fw_entry->size - be32_to_cpu(image_hdr->header_length);
3731 sglist = ipr_alloc_ucode_buffer(dnld_size);
3734 dev_err(&ioa_cfg->pdev->dev, "Microcode buffer allocation failed\n");
3735 release_firmware(fw_entry);
3739 result = ipr_copy_ucode_buffer(sglist, src, dnld_size);
3742 dev_err(&ioa_cfg->pdev->dev,
3743 "Microcode buffer copy to DMA buffer failed\n");
3747 result = ipr_update_ioa_ucode(ioa_cfg, sglist);
3752 ipr_free_ucode_buffer(sglist);
3753 release_firmware(fw_entry);
3757 static struct device_attribute ipr_update_fw_attr = {
3759 .name = "update_fw",
3762 .store = ipr_store_update_fw
3765 static struct device_attribute *ipr_ioa_attrs[] = {
3766 &ipr_fw_version_attr,
3767 &ipr_log_level_attr,
3768 &ipr_diagnostics_attr,
3769 &ipr_ioa_state_attr,
3770 &ipr_ioa_reset_attr,
3771 &ipr_update_fw_attr,
3775 #ifdef CONFIG_SCSI_IPR_DUMP
3777 * ipr_read_dump - Dump the adapter
3778 * @filp: open sysfs file
3779 * @kobj: kobject struct
3780 * @bin_attr: bin_attribute struct
3783 * @count: buffer size
3786 * number of bytes printed to buffer
3788 static ssize_t ipr_read_dump(struct file *filp, struct kobject *kobj,
3789 struct bin_attribute *bin_attr,
3790 char *buf, loff_t off, size_t count)
3792 struct device *cdev = container_of(kobj, struct device, kobj);
3793 struct Scsi_Host *shost = class_to_shost(cdev);
3794 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
3795 struct ipr_dump *dump;
3796 unsigned long lock_flags = 0;
3801 if (!capable(CAP_SYS_ADMIN))
3804 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3805 dump = ioa_cfg->dump;
3807 if (ioa_cfg->sdt_state != DUMP_OBTAINED || !dump) {
3808 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3811 kref_get(&dump->kref);
3812 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3814 if (off > dump->driver_dump.hdr.len) {
3815 kref_put(&dump->kref, ipr_release_dump);
3819 if (off + count > dump->driver_dump.hdr.len) {
3820 count = dump->driver_dump.hdr.len - off;
3824 if (count && off < sizeof(dump->driver_dump)) {
3825 if (off + count > sizeof(dump->driver_dump))
3826 len = sizeof(dump->driver_dump) - off;
3829 src = (u8 *)&dump->driver_dump + off;
3830 memcpy(buf, src, len);
3836 off -= sizeof(dump->driver_dump);
3838 if (count && off < offsetof(struct ipr_ioa_dump, ioa_data)) {
3839 if (off + count > offsetof(struct ipr_ioa_dump, ioa_data))
3840 len = offsetof(struct ipr_ioa_dump, ioa_data) - off;
3843 src = (u8 *)&dump->ioa_dump + off;
3844 memcpy(buf, src, len);
3850 off -= offsetof(struct ipr_ioa_dump, ioa_data);
3853 if ((off & PAGE_MASK) != ((off + count) & PAGE_MASK))
3854 len = PAGE_ALIGN(off) - off;
3857 src = (u8 *)dump->ioa_dump.ioa_data[(off & PAGE_MASK) >> PAGE_SHIFT];
3858 src += off & ~PAGE_MASK;
3859 memcpy(buf, src, len);
3865 kref_put(&dump->kref, ipr_release_dump);
3870 * ipr_alloc_dump - Prepare for adapter dump
3871 * @ioa_cfg: ioa config struct
3874 * 0 on success / other on failure
3876 static int ipr_alloc_dump(struct ipr_ioa_cfg *ioa_cfg)
3878 struct ipr_dump *dump;
3879 unsigned long lock_flags = 0;
3881 dump = kzalloc(sizeof(struct ipr_dump), GFP_KERNEL);
3884 ipr_err("Dump memory allocation failed\n");
3888 kref_init(&dump->kref);
3889 dump->ioa_cfg = ioa_cfg;
3891 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3893 if (INACTIVE != ioa_cfg->sdt_state) {
3894 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3899 ioa_cfg->dump = dump;
3900 ioa_cfg->sdt_state = WAIT_FOR_DUMP;
3901 if (ioa_cfg->ioa_is_dead && !ioa_cfg->dump_taken) {
3902 ioa_cfg->dump_taken = 1;
3903 schedule_work(&ioa_cfg->work_q);
3905 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3911 * ipr_free_dump - Free adapter dump memory
3912 * @ioa_cfg: ioa config struct
3915 * 0 on success / other on failure
3917 static int ipr_free_dump(struct ipr_ioa_cfg *ioa_cfg)
3919 struct ipr_dump *dump;
3920 unsigned long lock_flags = 0;
3924 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3925 dump = ioa_cfg->dump;
3927 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3931 ioa_cfg->dump = NULL;
3932 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3934 kref_put(&dump->kref, ipr_release_dump);
3941 * ipr_write_dump - Setup dump state of adapter
3942 * @filp: open sysfs file
3943 * @kobj: kobject struct
3944 * @bin_attr: bin_attribute struct
3947 * @count: buffer size
3950 * number of bytes printed to buffer
3952 static ssize_t ipr_write_dump(struct file *filp, struct kobject *kobj,
3953 struct bin_attribute *bin_attr,
3954 char *buf, loff_t off, size_t count)
3956 struct device *cdev = container_of(kobj, struct device, kobj);
3957 struct Scsi_Host *shost = class_to_shost(cdev);
3958 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
3961 if (!capable(CAP_SYS_ADMIN))
3965 rc = ipr_alloc_dump(ioa_cfg);
3966 else if (buf[0] == '0')
3967 rc = ipr_free_dump(ioa_cfg);
3977 static struct bin_attribute ipr_dump_attr = {
3980 .mode = S_IRUSR | S_IWUSR,
3983 .read = ipr_read_dump,
3984 .write = ipr_write_dump
3987 static int ipr_free_dump(struct ipr_ioa_cfg *ioa_cfg) { return 0; };
3991 * ipr_change_queue_depth - Change the device's queue depth
3992 * @sdev: scsi device struct
3993 * @qdepth: depth to set
3994 * @reason: calling context
3999 static int ipr_change_queue_depth(struct scsi_device *sdev, int qdepth,
4002 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)sdev->host->hostdata;
4003 struct ipr_resource_entry *res;
4004 unsigned long lock_flags = 0;
4006 if (reason != SCSI_QDEPTH_DEFAULT)
4009 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4010 res = (struct ipr_resource_entry *)sdev->hostdata;
4012 if (res && ipr_is_gata(res) && qdepth > IPR_MAX_CMD_PER_ATA_LUN)
4013 qdepth = IPR_MAX_CMD_PER_ATA_LUN;
4014 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4016 scsi_adjust_queue_depth(sdev, scsi_get_tag_type(sdev), qdepth);
4017 return sdev->queue_depth;
4021 * ipr_change_queue_type - Change the device's queue type
4022 * @dsev: scsi device struct
4023 * @tag_type: type of tags to use
4026 * actual queue type set
4028 static int ipr_change_queue_type(struct scsi_device *sdev, int tag_type)
4030 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)sdev->host->hostdata;
4031 struct ipr_resource_entry *res;
4032 unsigned long lock_flags = 0;
4034 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4035 res = (struct ipr_resource_entry *)sdev->hostdata;
4038 if (ipr_is_gscsi(res) && sdev->tagged_supported) {
4040 * We don't bother quiescing the device here since the
4041 * adapter firmware does it for us.
4043 scsi_set_tag_type(sdev, tag_type);
4046 scsi_activate_tcq(sdev, sdev->queue_depth);
4048 scsi_deactivate_tcq(sdev, sdev->queue_depth);
4054 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4059 * ipr_show_adapter_handle - Show the adapter's resource handle for this device
4060 * @dev: device struct
4064 * number of bytes printed to buffer
4066 static ssize_t ipr_show_adapter_handle(struct device *dev, struct device_attribute *attr, char *buf)
4068 struct scsi_device *sdev = to_scsi_device(dev);
4069 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)sdev->host->hostdata;
4070 struct ipr_resource_entry *res;
4071 unsigned long lock_flags = 0;
4072 ssize_t len = -ENXIO;
4074 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4075 res = (struct ipr_resource_entry *)sdev->hostdata;
4077 len = snprintf(buf, PAGE_SIZE, "%08X\n", res->res_handle);
4078 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4082 static struct device_attribute ipr_adapter_handle_attr = {
4084 .name = "adapter_handle",
4087 .show = ipr_show_adapter_handle
4091 * ipr_show_resource_path - Show the resource path or the resource address for
4093 * @dev: device struct
4097 * number of bytes printed to buffer
4099 static ssize_t ipr_show_resource_path(struct device *dev, struct device_attribute *attr, char *buf)
4101 struct scsi_device *sdev = to_scsi_device(dev);
4102 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)sdev->host->hostdata;
4103 struct ipr_resource_entry *res;
4104 unsigned long lock_flags = 0;
4105 ssize_t len = -ENXIO;
4106 char buffer[IPR_MAX_RES_PATH_LENGTH];
4108 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4109 res = (struct ipr_resource_entry *)sdev->hostdata;
4110 if (res && ioa_cfg->sis64)
4111 len = snprintf(buf, PAGE_SIZE, "%s\n",
4112 ipr_format_res_path(res->res_path, buffer,
4115 len = snprintf(buf, PAGE_SIZE, "%d:%d:%d:%d\n", ioa_cfg->host->host_no,
4116 res->bus, res->target, res->lun);
4118 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4122 static struct device_attribute ipr_resource_path_attr = {
4124 .name = "resource_path",
4127 .show = ipr_show_resource_path
4130 static struct device_attribute *ipr_dev_attrs[] = {
4131 &ipr_adapter_handle_attr,
4132 &ipr_resource_path_attr,
4137 * ipr_biosparam - Return the HSC mapping
4138 * @sdev: scsi device struct
4139 * @block_device: block device pointer
4140 * @capacity: capacity of the device
4141 * @parm: Array containing returned HSC values.
4143 * This function generates the HSC parms that fdisk uses.
4144 * We want to make sure we return something that places partitions
4145 * on 4k boundaries for best performance with the IOA.
4150 static int ipr_biosparam(struct scsi_device *sdev,
4151 struct block_device *block_device,
4152 sector_t capacity, int *parm)
4160 cylinders = capacity;
4161 sector_div(cylinders, (128 * 32));
4166 parm[2] = cylinders;
4172 * ipr_find_starget - Find target based on bus/target.
4173 * @starget: scsi target struct
4176 * resource entry pointer if found / NULL if not found
4178 static struct ipr_resource_entry *ipr_find_starget(struct scsi_target *starget)
4180 struct Scsi_Host *shost = dev_to_shost(&starget->dev);
4181 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) shost->hostdata;
4182 struct ipr_resource_entry *res;
4184 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) {
4185 if ((res->bus == starget->channel) &&
4186 (res->target == starget->id) &&
4195 static struct ata_port_info sata_port_info;
4198 * ipr_target_alloc - Prepare for commands to a SCSI target
4199 * @starget: scsi target struct
4201 * If the device is a SATA device, this function allocates an
4202 * ATA port with libata, else it does nothing.
4205 * 0 on success / non-0 on failure
4207 static int ipr_target_alloc(struct scsi_target *starget)
4209 struct Scsi_Host *shost = dev_to_shost(&starget->dev);
4210 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) shost->hostdata;
4211 struct ipr_sata_port *sata_port;
4212 struct ata_port *ap;
4213 struct ipr_resource_entry *res;
4214 unsigned long lock_flags;
4216 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4217 res = ipr_find_starget(starget);
4218 starget->hostdata = NULL;
4220 if (res && ipr_is_gata(res)) {
4221 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4222 sata_port = kzalloc(sizeof(*sata_port), GFP_KERNEL);
4226 ap = ata_sas_port_alloc(&ioa_cfg->ata_host, &sata_port_info, shost);
4228 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4229 sata_port->ioa_cfg = ioa_cfg;
4231 sata_port->res = res;
4233 res->sata_port = sata_port;
4234 ap->private_data = sata_port;
4235 starget->hostdata = sata_port;
4241 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4247 * ipr_target_destroy - Destroy a SCSI target
4248 * @starget: scsi target struct
4250 * If the device was a SATA device, this function frees the libata
4251 * ATA port, else it does nothing.
4254 static void ipr_target_destroy(struct scsi_target *starget)
4256 struct ipr_sata_port *sata_port = starget->hostdata;
4257 struct Scsi_Host *shost = dev_to_shost(&starget->dev);
4258 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) shost->hostdata;
4260 if (ioa_cfg->sis64) {
4261 if (starget->channel == IPR_ARRAY_VIRTUAL_BUS)
4262 clear_bit(starget->id, ioa_cfg->array_ids);
4263 else if (starget->channel == IPR_VSET_VIRTUAL_BUS)
4264 clear_bit(starget->id, ioa_cfg->vset_ids);
4265 else if (starget->channel == 0)
4266 clear_bit(starget->id, ioa_cfg->target_ids);
4270 starget->hostdata = NULL;
4271 ata_sas_port_destroy(sata_port->ap);
4277 * ipr_find_sdev - Find device based on bus/target/lun.
4278 * @sdev: scsi device struct
4281 * resource entry pointer if found / NULL if not found
4283 static struct ipr_resource_entry *ipr_find_sdev(struct scsi_device *sdev)
4285 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) sdev->host->hostdata;
4286 struct ipr_resource_entry *res;
4288 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) {
4289 if ((res->bus == sdev->channel) &&
4290 (res->target == sdev->id) &&
4291 (res->lun == sdev->lun))
4299 * ipr_slave_destroy - Unconfigure a SCSI device
4300 * @sdev: scsi device struct
4305 static void ipr_slave_destroy(struct scsi_device *sdev)
4307 struct ipr_resource_entry *res;
4308 struct ipr_ioa_cfg *ioa_cfg;
4309 unsigned long lock_flags = 0;
4311 ioa_cfg = (struct ipr_ioa_cfg *) sdev->host->hostdata;
4313 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4314 res = (struct ipr_resource_entry *) sdev->hostdata;
4317 res->sata_port->ap->link.device[0].class = ATA_DEV_NONE;
4318 sdev->hostdata = NULL;
4320 res->sata_port = NULL;
4322 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4326 * ipr_slave_configure - Configure a SCSI device
4327 * @sdev: scsi device struct
4329 * This function configures the specified scsi device.
4334 static int ipr_slave_configure(struct scsi_device *sdev)
4336 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) sdev->host->hostdata;
4337 struct ipr_resource_entry *res;
4338 struct ata_port *ap = NULL;
4339 unsigned long lock_flags = 0;
4340 char buffer[IPR_MAX_RES_PATH_LENGTH];
4342 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4343 res = sdev->hostdata;
4345 if (ipr_is_af_dasd_device(res))
4346 sdev->type = TYPE_RAID;
4347 if (ipr_is_af_dasd_device(res) || ipr_is_ioa_resource(res)) {
4348 sdev->scsi_level = 4;
4349 sdev->no_uld_attach = 1;
4351 if (ipr_is_vset_device(res)) {
4352 blk_queue_rq_timeout(sdev->request_queue,
4353 IPR_VSET_RW_TIMEOUT);
4354 blk_queue_max_hw_sectors(sdev->request_queue, IPR_VSET_MAX_SECTORS);
4356 if (ipr_is_gata(res) && res->sata_port)
4357 ap = res->sata_port->ap;
4358 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4361 scsi_adjust_queue_depth(sdev, 0, IPR_MAX_CMD_PER_ATA_LUN);
4362 ata_sas_slave_configure(sdev, ap);
4364 scsi_adjust_queue_depth(sdev, 0, sdev->host->cmd_per_lun);
4366 sdev_printk(KERN_INFO, sdev, "Resource path: %s\n",
4367 ipr_format_res_path(res->res_path, buffer,
4371 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4376 * ipr_ata_slave_alloc - Prepare for commands to a SATA device
4377 * @sdev: scsi device struct
4379 * This function initializes an ATA port so that future commands
4380 * sent through queuecommand will work.
4385 static int ipr_ata_slave_alloc(struct scsi_device *sdev)
4387 struct ipr_sata_port *sata_port = NULL;
4391 if (sdev->sdev_target)
4392 sata_port = sdev->sdev_target->hostdata;
4394 rc = ata_sas_port_init(sata_port->ap);
4396 ipr_slave_destroy(sdev);
4403 * ipr_slave_alloc - Prepare for commands to a device.
4404 * @sdev: scsi device struct
4406 * This function saves a pointer to the resource entry
4407 * in the scsi device struct if the device exists. We
4408 * can then use this pointer in ipr_queuecommand when
4409 * handling new commands.
4412 * 0 on success / -ENXIO if device does not exist
4414 static int ipr_slave_alloc(struct scsi_device *sdev)
4416 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) sdev->host->hostdata;
4417 struct ipr_resource_entry *res;
4418 unsigned long lock_flags;
4421 sdev->hostdata = NULL;
4423 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4425 res = ipr_find_sdev(sdev);
4430 sdev->hostdata = res;
4431 if (!ipr_is_naca_model(res))
4432 res->needs_sync_complete = 1;
4434 if (ipr_is_gata(res)) {
4435 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4436 return ipr_ata_slave_alloc(sdev);
4440 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4446 * ipr_eh_host_reset - Reset the host adapter
4447 * @scsi_cmd: scsi command struct
4452 static int __ipr_eh_host_reset(struct scsi_cmnd * scsi_cmd)
4454 struct ipr_ioa_cfg *ioa_cfg;
4458 ioa_cfg = (struct ipr_ioa_cfg *) scsi_cmd->device->host->hostdata;
4460 dev_err(&ioa_cfg->pdev->dev,
4461 "Adapter being reset as a result of error recovery.\n");
4463 if (WAIT_FOR_DUMP == ioa_cfg->sdt_state)
4464 ioa_cfg->sdt_state = GET_DUMP;
4466 rc = ipr_reset_reload(ioa_cfg, IPR_SHUTDOWN_ABBREV);
4472 static int ipr_eh_host_reset(struct scsi_cmnd * cmd)
4476 spin_lock_irq(cmd->device->host->host_lock);
4477 rc = __ipr_eh_host_reset(cmd);
4478 spin_unlock_irq(cmd->device->host->host_lock);
4484 * ipr_device_reset - Reset the device
4485 * @ioa_cfg: ioa config struct
4486 * @res: resource entry struct
4488 * This function issues a device reset to the affected device.
4489 * If the device is a SCSI device, a LUN reset will be sent
4490 * to the device first. If that does not work, a target reset
4491 * will be sent. If the device is a SATA device, a PHY reset will
4495 * 0 on success / non-zero on failure
4497 static int ipr_device_reset(struct ipr_ioa_cfg *ioa_cfg,
4498 struct ipr_resource_entry *res)
4500 struct ipr_cmnd *ipr_cmd;
4501 struct ipr_ioarcb *ioarcb;
4502 struct ipr_cmd_pkt *cmd_pkt;
4503 struct ipr_ioarcb_ata_regs *regs;
4507 ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg);
4508 ioarcb = &ipr_cmd->ioarcb;
4509 cmd_pkt = &ioarcb->cmd_pkt;
4511 if (ipr_cmd->ioa_cfg->sis64) {
4512 regs = &ipr_cmd->i.ata_ioadl.regs;
4513 ioarcb->add_cmd_parms_offset = cpu_to_be16(sizeof(*ioarcb));
4515 regs = &ioarcb->u.add_data.u.regs;
4517 ioarcb->res_handle = res->res_handle;
4518 cmd_pkt->request_type = IPR_RQTYPE_IOACMD;
4519 cmd_pkt->cdb[0] = IPR_RESET_DEVICE;
4520 if (ipr_is_gata(res)) {
4521 cmd_pkt->cdb[2] = IPR_ATA_PHY_RESET;
4522 ioarcb->add_cmd_parms_len = cpu_to_be16(sizeof(regs->flags));
4523 regs->flags |= IPR_ATA_FLAG_STATUS_ON_GOOD_COMPLETION;
4526 ipr_send_blocking_cmd(ipr_cmd, ipr_timeout, IPR_DEVICE_RESET_TIMEOUT);
4527 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
4528 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
4529 if (ipr_is_gata(res) && res->sata_port && ioasc != IPR_IOASC_IOA_WAS_RESET) {
4530 if (ipr_cmd->ioa_cfg->sis64)
4531 memcpy(&res->sata_port->ioasa, &ipr_cmd->s.ioasa64.u.gata,
4532 sizeof(struct ipr_ioasa_gata));
4534 memcpy(&res->sata_port->ioasa, &ipr_cmd->s.ioasa.u.gata,
4535 sizeof(struct ipr_ioasa_gata));
4539 return (IPR_IOASC_SENSE_KEY(ioasc) ? -EIO : 0);
4543 * ipr_sata_reset - Reset the SATA port
4544 * @link: SATA link to reset
4545 * @classes: class of the attached device
4547 * This function issues a SATA phy reset to the affected ATA link.
4550 * 0 on success / non-zero on failure
4552 static int ipr_sata_reset(struct ata_link *link, unsigned int *classes,
4553 unsigned long deadline)
4555 struct ipr_sata_port *sata_port = link->ap->private_data;
4556 struct ipr_ioa_cfg *ioa_cfg = sata_port->ioa_cfg;
4557 struct ipr_resource_entry *res;
4558 unsigned long lock_flags = 0;
4562 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4563 while(ioa_cfg->in_reset_reload) {
4564 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4565 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
4566 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4569 res = sata_port->res;
4571 rc = ipr_device_reset(ioa_cfg, res);
4572 *classes = res->ata_class;
4575 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4581 * ipr_eh_dev_reset - Reset the device
4582 * @scsi_cmd: scsi command struct
4584 * This function issues a device reset to the affected device.
4585 * A LUN reset will be sent to the device first. If that does
4586 * not work, a target reset will be sent.
4591 static int __ipr_eh_dev_reset(struct scsi_cmnd * scsi_cmd)
4593 struct ipr_cmnd *ipr_cmd;
4594 struct ipr_ioa_cfg *ioa_cfg;
4595 struct ipr_resource_entry *res;
4596 struct ata_port *ap;
4600 ioa_cfg = (struct ipr_ioa_cfg *) scsi_cmd->device->host->hostdata;
4601 res = scsi_cmd->device->hostdata;
4607 * If we are currently going through reset/reload, return failed. This will force the
4608 * mid-layer to call ipr_eh_host_reset, which will then go to sleep and wait for the
4611 if (ioa_cfg->in_reset_reload)
4613 if (ioa_cfg->ioa_is_dead)
4616 list_for_each_entry(ipr_cmd, &ioa_cfg->pending_q, queue) {
4617 if (ipr_cmd->ioarcb.res_handle == res->res_handle) {
4618 if (ipr_cmd->scsi_cmd)
4619 ipr_cmd->done = ipr_scsi_eh_done;
4621 ipr_cmd->done = ipr_sata_eh_done;
4622 if (ipr_cmd->qc && !(ipr_cmd->qc->flags & ATA_QCFLAG_FAILED)) {
4623 ipr_cmd->qc->err_mask |= AC_ERR_TIMEOUT;
4624 ipr_cmd->qc->flags |= ATA_QCFLAG_FAILED;
4629 res->resetting_device = 1;
4630 scmd_printk(KERN_ERR, scsi_cmd, "Resetting device\n");
4632 if (ipr_is_gata(res) && res->sata_port) {
4633 ap = res->sata_port->ap;
4634 spin_unlock_irq(scsi_cmd->device->host->host_lock);
4635 ata_std_error_handler(ap);
4636 spin_lock_irq(scsi_cmd->device->host->host_lock);
4638 list_for_each_entry(ipr_cmd, &ioa_cfg->pending_q, queue) {
4639 if (ipr_cmd->ioarcb.res_handle == res->res_handle) {
4645 rc = ipr_device_reset(ioa_cfg, res);
4646 res->resetting_device = 0;
4649 return (rc ? FAILED : SUCCESS);
4652 static int ipr_eh_dev_reset(struct scsi_cmnd * cmd)
4656 spin_lock_irq(cmd->device->host->host_lock);
4657 rc = __ipr_eh_dev_reset(cmd);
4658 spin_unlock_irq(cmd->device->host->host_lock);
4664 * ipr_bus_reset_done - Op done function for bus reset.
4665 * @ipr_cmd: ipr command struct
4667 * This function is the op done function for a bus reset
4672 static void ipr_bus_reset_done(struct ipr_cmnd *ipr_cmd)
4674 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
4675 struct ipr_resource_entry *res;
4678 if (!ioa_cfg->sis64)
4679 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) {
4680 if (res->res_handle == ipr_cmd->ioarcb.res_handle) {
4681 scsi_report_bus_reset(ioa_cfg->host, res->bus);
4687 * If abort has not completed, indicate the reset has, else call the
4688 * abort's done function to wake the sleeping eh thread
4690 if (ipr_cmd->sibling->sibling)
4691 ipr_cmd->sibling->sibling = NULL;
4693 ipr_cmd->sibling->done(ipr_cmd->sibling);
4695 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
4700 * ipr_abort_timeout - An abort task has timed out
4701 * @ipr_cmd: ipr command struct
4703 * This function handles when an abort task times out. If this
4704 * happens we issue a bus reset since we have resources tied
4705 * up that must be freed before returning to the midlayer.
4710 static void ipr_abort_timeout(struct ipr_cmnd *ipr_cmd)
4712 struct ipr_cmnd *reset_cmd;
4713 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
4714 struct ipr_cmd_pkt *cmd_pkt;
4715 unsigned long lock_flags = 0;
4718 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4719 if (ipr_cmd->completion.done || ioa_cfg->in_reset_reload) {
4720 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4724 sdev_printk(KERN_ERR, ipr_cmd->u.sdev, "Abort timed out. Resetting bus.\n");
4725 reset_cmd = ipr_get_free_ipr_cmnd(ioa_cfg);
4726 ipr_cmd->sibling = reset_cmd;
4727 reset_cmd->sibling = ipr_cmd;
4728 reset_cmd->ioarcb.res_handle = ipr_cmd->ioarcb.res_handle;
4729 cmd_pkt = &reset_cmd->ioarcb.cmd_pkt;
4730 cmd_pkt->request_type = IPR_RQTYPE_IOACMD;
4731 cmd_pkt->cdb[0] = IPR_RESET_DEVICE;
4732 cmd_pkt->cdb[2] = IPR_RESET_TYPE_SELECT | IPR_BUS_RESET;
4734 ipr_do_req(reset_cmd, ipr_bus_reset_done, ipr_timeout, IPR_DEVICE_RESET_TIMEOUT);
4735 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4740 * ipr_cancel_op - Cancel specified op
4741 * @scsi_cmd: scsi command struct
4743 * This function cancels specified op.
4748 static int ipr_cancel_op(struct scsi_cmnd * scsi_cmd)
4750 struct ipr_cmnd *ipr_cmd;
4751 struct ipr_ioa_cfg *ioa_cfg;
4752 struct ipr_resource_entry *res;
4753 struct ipr_cmd_pkt *cmd_pkt;
4758 ioa_cfg = (struct ipr_ioa_cfg *)scsi_cmd->device->host->hostdata;
4759 res = scsi_cmd->device->hostdata;
4761 /* If we are currently going through reset/reload, return failed.
4762 * This will force the mid-layer to call ipr_eh_host_reset,
4763 * which will then go to sleep and wait for the reset to complete
4765 if (ioa_cfg->in_reset_reload || ioa_cfg->ioa_is_dead)
4767 if (!res || !ipr_is_gscsi(res))
4770 list_for_each_entry(ipr_cmd, &ioa_cfg->pending_q, queue) {
4771 if (ipr_cmd->scsi_cmd == scsi_cmd) {
4772 ipr_cmd->done = ipr_scsi_eh_done;
4781 ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg);
4782 ipr_cmd->ioarcb.res_handle = res->res_handle;
4783 cmd_pkt = &ipr_cmd->ioarcb.cmd_pkt;
4784 cmd_pkt->request_type = IPR_RQTYPE_IOACMD;
4785 cmd_pkt->cdb[0] = IPR_CANCEL_ALL_REQUESTS;
4786 ipr_cmd->u.sdev = scsi_cmd->device;
4788 scmd_printk(KERN_ERR, scsi_cmd, "Aborting command: %02X\n",
4790 ipr_send_blocking_cmd(ipr_cmd, ipr_abort_timeout, IPR_CANCEL_ALL_TIMEOUT);
4791 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
4794 * If the abort task timed out and we sent a bus reset, we will get
4795 * one the following responses to the abort
4797 if (ioasc == IPR_IOASC_BUS_WAS_RESET || ioasc == IPR_IOASC_SYNC_REQUIRED) {
4802 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
4803 if (!ipr_is_naca_model(res))
4804 res->needs_sync_complete = 1;
4807 return (IPR_IOASC_SENSE_KEY(ioasc) ? FAILED : SUCCESS);
4811 * ipr_eh_abort - Abort a single op
4812 * @scsi_cmd: scsi command struct
4817 static int ipr_eh_abort(struct scsi_cmnd * scsi_cmd)
4819 unsigned long flags;
4824 spin_lock_irqsave(scsi_cmd->device->host->host_lock, flags);
4825 rc = ipr_cancel_op(scsi_cmd);
4826 spin_unlock_irqrestore(scsi_cmd->device->host->host_lock, flags);
4833 * ipr_handle_other_interrupt - Handle "other" interrupts
4834 * @ioa_cfg: ioa config struct
4837 * IRQ_NONE / IRQ_HANDLED
4839 static irqreturn_t ipr_handle_other_interrupt(struct ipr_ioa_cfg *ioa_cfg)
4841 irqreturn_t rc = IRQ_HANDLED;
4842 volatile u32 int_reg, int_mask_reg;
4844 int_mask_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg32);
4845 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg32) & ~int_mask_reg;
4847 /* If an interrupt on the adapter did not occur, ignore it.
4848 * Or in the case of SIS 64, check for a stage change interrupt.
4850 if ((int_reg & IPR_PCII_OPER_INTERRUPTS) == 0) {
4851 if (ioa_cfg->sis64) {
4852 int_mask_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg);
4853 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg) & ~int_mask_reg;
4854 if (int_reg & IPR_PCII_IPL_STAGE_CHANGE) {
4856 /* clear stage change */
4857 writel(IPR_PCII_IPL_STAGE_CHANGE, ioa_cfg->regs.clr_interrupt_reg);
4858 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg) & ~int_mask_reg;
4859 list_del(&ioa_cfg->reset_cmd->queue);
4860 del_timer(&ioa_cfg->reset_cmd->timer);
4861 ipr_reset_ioa_job(ioa_cfg->reset_cmd);
4869 if (int_reg & IPR_PCII_IOA_TRANS_TO_OPER) {
4870 /* Mask the interrupt */
4871 writel(IPR_PCII_IOA_TRANS_TO_OPER, ioa_cfg->regs.set_interrupt_mask_reg);
4873 /* Clear the interrupt */
4874 writel(IPR_PCII_IOA_TRANS_TO_OPER, ioa_cfg->regs.clr_interrupt_reg);
4875 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg);
4877 list_del(&ioa_cfg->reset_cmd->queue);
4878 del_timer(&ioa_cfg->reset_cmd->timer);
4879 ipr_reset_ioa_job(ioa_cfg->reset_cmd);
4881 if (int_reg & IPR_PCII_IOA_UNIT_CHECKED)
4882 ioa_cfg->ioa_unit_checked = 1;
4884 dev_err(&ioa_cfg->pdev->dev,
4885 "Permanent IOA failure. 0x%08X\n", int_reg);
4887 if (WAIT_FOR_DUMP == ioa_cfg->sdt_state)
4888 ioa_cfg->sdt_state = GET_DUMP;
4890 ipr_mask_and_clear_interrupts(ioa_cfg, ~0);
4891 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
4898 * ipr_isr_eh - Interrupt service routine error handler
4899 * @ioa_cfg: ioa config struct
4900 * @msg: message to log
4905 static void ipr_isr_eh(struct ipr_ioa_cfg *ioa_cfg, char *msg)
4907 ioa_cfg->errors_logged++;
4908 dev_err(&ioa_cfg->pdev->dev, "%s\n", msg);
4910 if (WAIT_FOR_DUMP == ioa_cfg->sdt_state)
4911 ioa_cfg->sdt_state = GET_DUMP;
4913 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
4917 * ipr_isr - Interrupt service routine
4919 * @devp: pointer to ioa config struct
4922 * IRQ_NONE / IRQ_HANDLED
4924 static irqreturn_t ipr_isr(int irq, void *devp)
4926 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)devp;
4927 unsigned long lock_flags = 0;
4928 volatile u32 int_reg;
4932 struct ipr_cmnd *ipr_cmd;
4933 irqreturn_t rc = IRQ_NONE;
4935 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4937 /* If interrupts are disabled, ignore the interrupt */
4938 if (!ioa_cfg->allow_interrupts) {
4939 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4946 while ((be32_to_cpu(*ioa_cfg->hrrq_curr) & IPR_HRRQ_TOGGLE_BIT) ==
4947 ioa_cfg->toggle_bit) {
4949 cmd_index = (be32_to_cpu(*ioa_cfg->hrrq_curr) &
4950 IPR_HRRQ_REQ_RESP_HANDLE_MASK) >> IPR_HRRQ_REQ_RESP_HANDLE_SHIFT;
4952 if (unlikely(cmd_index >= IPR_NUM_CMD_BLKS)) {
4953 ipr_isr_eh(ioa_cfg, "Invalid response handle from IOA");
4954 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4958 ipr_cmd = ioa_cfg->ipr_cmnd_list[cmd_index];
4960 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
4962 ipr_trc_hook(ipr_cmd, IPR_TRACE_FINISH, ioasc);
4964 list_del(&ipr_cmd->queue);
4965 del_timer(&ipr_cmd->timer);
4966 ipr_cmd->done(ipr_cmd);
4970 if (ioa_cfg->hrrq_curr < ioa_cfg->hrrq_end) {
4971 ioa_cfg->hrrq_curr++;
4973 ioa_cfg->hrrq_curr = ioa_cfg->hrrq_start;
4974 ioa_cfg->toggle_bit ^= 1u;
4978 if (ipr_cmd != NULL) {
4979 /* Clear the PCI interrupt */
4981 writel(IPR_PCII_HRRQ_UPDATED, ioa_cfg->regs.clr_interrupt_reg32);
4982 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg32);
4983 } while (int_reg & IPR_PCII_HRRQ_UPDATED &&
4984 num_hrrq++ < IPR_MAX_HRRQ_RETRIES);
4986 if (int_reg & IPR_PCII_HRRQ_UPDATED) {
4987 ipr_isr_eh(ioa_cfg, "Error clearing HRRQ");
4988 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4996 if (unlikely(rc == IRQ_NONE))
4997 rc = ipr_handle_other_interrupt(ioa_cfg);
4999 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
5004 * ipr_build_ioadl64 - Build a scatter/gather list and map the buffer
5005 * @ioa_cfg: ioa config struct
5006 * @ipr_cmd: ipr command struct
5009 * 0 on success / -1 on failure
5011 static int ipr_build_ioadl64(struct ipr_ioa_cfg *ioa_cfg,
5012 struct ipr_cmnd *ipr_cmd)
5015 struct scatterlist *sg;
5017 u32 ioadl_flags = 0;
5018 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd;
5019 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
5020 struct ipr_ioadl64_desc *ioadl64 = ipr_cmd->i.ioadl64;
5022 length = scsi_bufflen(scsi_cmd);
5026 nseg = scsi_dma_map(scsi_cmd);
5028 dev_err(&ioa_cfg->pdev->dev, "pci_map_sg failed!\n");
5032 ipr_cmd->dma_use_sg = nseg;
5034 ioarcb->data_transfer_length = cpu_to_be32(length);
5036 cpu_to_be32(sizeof(struct ipr_ioadl64_desc) * ipr_cmd->dma_use_sg);
5038 if (scsi_cmd->sc_data_direction == DMA_TO_DEVICE) {
5039 ioadl_flags = IPR_IOADL_FLAGS_WRITE;
5040 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ;
5041 } else if (scsi_cmd->sc_data_direction == DMA_FROM_DEVICE)
5042 ioadl_flags = IPR_IOADL_FLAGS_READ;
5044 scsi_for_each_sg(scsi_cmd, sg, ipr_cmd->dma_use_sg, i) {
5045 ioadl64[i].flags = cpu_to_be32(ioadl_flags);
5046 ioadl64[i].data_len = cpu_to_be32(sg_dma_len(sg));
5047 ioadl64[i].address = cpu_to_be64(sg_dma_address(sg));
5050 ioadl64[i-1].flags |= cpu_to_be32(IPR_IOADL_FLAGS_LAST);
5055 * ipr_build_ioadl - Build a scatter/gather list and map the buffer
5056 * @ioa_cfg: ioa config struct
5057 * @ipr_cmd: ipr command struct
5060 * 0 on success / -1 on failure
5062 static int ipr_build_ioadl(struct ipr_ioa_cfg *ioa_cfg,
5063 struct ipr_cmnd *ipr_cmd)
5066 struct scatterlist *sg;
5068 u32 ioadl_flags = 0;
5069 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd;
5070 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
5071 struct ipr_ioadl_desc *ioadl = ipr_cmd->i.ioadl;
5073 length = scsi_bufflen(scsi_cmd);
5077 nseg = scsi_dma_map(scsi_cmd);
5079 dev_err(&ioa_cfg->pdev->dev, "pci_map_sg failed!\n");
5083 ipr_cmd->dma_use_sg = nseg;
5085 if (scsi_cmd->sc_data_direction == DMA_TO_DEVICE) {
5086 ioadl_flags = IPR_IOADL_FLAGS_WRITE;
5087 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ;
5088 ioarcb->data_transfer_length = cpu_to_be32(length);
5090 cpu_to_be32(sizeof(struct ipr_ioadl_desc) * ipr_cmd->dma_use_sg);
5091 } else if (scsi_cmd->sc_data_direction == DMA_FROM_DEVICE) {
5092 ioadl_flags = IPR_IOADL_FLAGS_READ;
5093 ioarcb->read_data_transfer_length = cpu_to_be32(length);
5094 ioarcb->read_ioadl_len =
5095 cpu_to_be32(sizeof(struct ipr_ioadl_desc) * ipr_cmd->dma_use_sg);
5098 if (ipr_cmd->dma_use_sg <= ARRAY_SIZE(ioarcb->u.add_data.u.ioadl)) {
5099 ioadl = ioarcb->u.add_data.u.ioadl;
5100 ioarcb->write_ioadl_addr = cpu_to_be32((ipr_cmd->dma_addr) +
5101 offsetof(struct ipr_ioarcb, u.add_data));
5102 ioarcb->read_ioadl_addr = ioarcb->write_ioadl_addr;
5105 scsi_for_each_sg(scsi_cmd, sg, ipr_cmd->dma_use_sg, i) {
5106 ioadl[i].flags_and_data_len =
5107 cpu_to_be32(ioadl_flags | sg_dma_len(sg));
5108 ioadl[i].address = cpu_to_be32(sg_dma_address(sg));
5111 ioadl[i-1].flags_and_data_len |= cpu_to_be32(IPR_IOADL_FLAGS_LAST);
5116 * ipr_get_task_attributes - Translate SPI Q-Tag to task attributes
5117 * @scsi_cmd: scsi command struct
5122 static u8 ipr_get_task_attributes(struct scsi_cmnd *scsi_cmd)
5125 u8 rc = IPR_FLAGS_LO_UNTAGGED_TASK;
5127 if (scsi_populate_tag_msg(scsi_cmd, tag)) {
5129 case MSG_SIMPLE_TAG:
5130 rc = IPR_FLAGS_LO_SIMPLE_TASK;
5133 rc = IPR_FLAGS_LO_HEAD_OF_Q_TASK;
5135 case MSG_ORDERED_TAG:
5136 rc = IPR_FLAGS_LO_ORDERED_TASK;
5145 * ipr_erp_done - Process completion of ERP for a device
5146 * @ipr_cmd: ipr command struct
5148 * This function copies the sense buffer into the scsi_cmd
5149 * struct and pushes the scsi_done function.
5154 static void ipr_erp_done(struct ipr_cmnd *ipr_cmd)
5156 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd;
5157 struct ipr_resource_entry *res = scsi_cmd->device->hostdata;
5158 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
5159 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
5161 if (IPR_IOASC_SENSE_KEY(ioasc) > 0) {
5162 scsi_cmd->result |= (DID_ERROR << 16);
5163 scmd_printk(KERN_ERR, scsi_cmd,
5164 "Request Sense failed with IOASC: 0x%08X\n", ioasc);
5166 memcpy(scsi_cmd->sense_buffer, ipr_cmd->sense_buffer,
5167 SCSI_SENSE_BUFFERSIZE);
5171 if (!ipr_is_naca_model(res))
5172 res->needs_sync_complete = 1;
5175 scsi_dma_unmap(ipr_cmd->scsi_cmd);
5176 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
5177 scsi_cmd->scsi_done(scsi_cmd);
5181 * ipr_reinit_ipr_cmnd_for_erp - Re-initialize a cmnd block to be used for ERP
5182 * @ipr_cmd: ipr command struct
5187 static void ipr_reinit_ipr_cmnd_for_erp(struct ipr_cmnd *ipr_cmd)
5189 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
5190 struct ipr_ioasa *ioasa = &ipr_cmd->s.ioasa;
5191 dma_addr_t dma_addr = ipr_cmd->dma_addr;
5193 memset(&ioarcb->cmd_pkt, 0, sizeof(struct ipr_cmd_pkt));
5194 ioarcb->data_transfer_length = 0;
5195 ioarcb->read_data_transfer_length = 0;
5196 ioarcb->ioadl_len = 0;
5197 ioarcb->read_ioadl_len = 0;
5198 ioasa->hdr.ioasc = 0;
5199 ioasa->hdr.residual_data_len = 0;
5201 if (ipr_cmd->ioa_cfg->sis64)
5202 ioarcb->u.sis64_addr_data.data_ioadl_addr =
5203 cpu_to_be64(dma_addr + offsetof(struct ipr_cmnd, i.ioadl64));
5205 ioarcb->write_ioadl_addr =
5206 cpu_to_be32(dma_addr + offsetof(struct ipr_cmnd, i.ioadl));
5207 ioarcb->read_ioadl_addr = ioarcb->write_ioadl_addr;
5212 * ipr_erp_request_sense - Send request sense to a device
5213 * @ipr_cmd: ipr command struct
5215 * This function sends a request sense to a device as a result
5216 * of a check condition.
5221 static void ipr_erp_request_sense(struct ipr_cmnd *ipr_cmd)
5223 struct ipr_cmd_pkt *cmd_pkt = &ipr_cmd->ioarcb.cmd_pkt;
5224 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
5226 if (IPR_IOASC_SENSE_KEY(ioasc) > 0) {
5227 ipr_erp_done(ipr_cmd);
5231 ipr_reinit_ipr_cmnd_for_erp(ipr_cmd);
5233 cmd_pkt->request_type = IPR_RQTYPE_SCSICDB;
5234 cmd_pkt->cdb[0] = REQUEST_SENSE;
5235 cmd_pkt->cdb[4] = SCSI_SENSE_BUFFERSIZE;
5236 cmd_pkt->flags_hi |= IPR_FLAGS_HI_SYNC_OVERRIDE;
5237 cmd_pkt->flags_hi |= IPR_FLAGS_HI_NO_ULEN_CHK;
5238 cmd_pkt->timeout = cpu_to_be16(IPR_REQUEST_SENSE_TIMEOUT / HZ);
5240 ipr_init_ioadl(ipr_cmd, ipr_cmd->sense_buffer_dma,
5241 SCSI_SENSE_BUFFERSIZE, IPR_IOADL_FLAGS_READ_LAST);
5243 ipr_do_req(ipr_cmd, ipr_erp_done, ipr_timeout,
5244 IPR_REQUEST_SENSE_TIMEOUT * 2);
5248 * ipr_erp_cancel_all - Send cancel all to a device
5249 * @ipr_cmd: ipr command struct
5251 * This function sends a cancel all to a device to clear the
5252 * queue. If we are running TCQ on the device, QERR is set to 1,
5253 * which means all outstanding ops have been dropped on the floor.
5254 * Cancel all will return them to us.
5259 static void ipr_erp_cancel_all(struct ipr_cmnd *ipr_cmd)
5261 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd;
5262 struct ipr_resource_entry *res = scsi_cmd->device->hostdata;
5263 struct ipr_cmd_pkt *cmd_pkt;
5267 ipr_reinit_ipr_cmnd_for_erp(ipr_cmd);
5269 if (!scsi_get_tag_type(scsi_cmd->device)) {
5270 ipr_erp_request_sense(ipr_cmd);
5274 cmd_pkt = &ipr_cmd->ioarcb.cmd_pkt;
5275 cmd_pkt->request_type = IPR_RQTYPE_IOACMD;
5276 cmd_pkt->cdb[0] = IPR_CANCEL_ALL_REQUESTS;
5278 ipr_do_req(ipr_cmd, ipr_erp_request_sense, ipr_timeout,
5279 IPR_CANCEL_ALL_TIMEOUT);
5283 * ipr_dump_ioasa - Dump contents of IOASA
5284 * @ioa_cfg: ioa config struct
5285 * @ipr_cmd: ipr command struct
5286 * @res: resource entry struct
5288 * This function is invoked by the interrupt handler when ops
5289 * fail. It will log the IOASA if appropriate. Only called
5295 static void ipr_dump_ioasa(struct ipr_ioa_cfg *ioa_cfg,
5296 struct ipr_cmnd *ipr_cmd, struct ipr_resource_entry *res)
5300 u32 ioasc, fd_ioasc;
5301 struct ipr_ioasa *ioasa = &ipr_cmd->s.ioasa;
5302 __be32 *ioasa_data = (__be32 *)ioasa;
5305 ioasc = be32_to_cpu(ioasa->hdr.ioasc) & IPR_IOASC_IOASC_MASK;
5306 fd_ioasc = be32_to_cpu(ioasa->hdr.fd_ioasc) & IPR_IOASC_IOASC_MASK;
5311 if (ioa_cfg->log_level < IPR_DEFAULT_LOG_LEVEL)
5314 if (ioasc == IPR_IOASC_BUS_WAS_RESET && fd_ioasc)
5315 error_index = ipr_get_error(fd_ioasc);
5317 error_index = ipr_get_error(ioasc);
5319 if (ioa_cfg->log_level < IPR_MAX_LOG_LEVEL) {
5320 /* Don't log an error if the IOA already logged one */
5321 if (ioasa->hdr.ilid != 0)
5324 if (!ipr_is_gscsi(res))
5327 if (ipr_error_table[error_index].log_ioasa == 0)
5331 ipr_res_err(ioa_cfg, res, "%s\n", ipr_error_table[error_index].error);
5333 data_len = be16_to_cpu(ioasa->hdr.ret_stat_len);
5334 if (ioa_cfg->sis64 && sizeof(struct ipr_ioasa64) < data_len)
5335 data_len = sizeof(struct ipr_ioasa64);
5336 else if (!ioa_cfg->sis64 && sizeof(struct ipr_ioasa) < data_len)
5337 data_len = sizeof(struct ipr_ioasa);
5339 ipr_err("IOASA Dump:\n");
5341 for (i = 0; i < data_len / 4; i += 4) {
5342 ipr_err("%08X: %08X %08X %08X %08X\n", i*4,
5343 be32_to_cpu(ioasa_data[i]),
5344 be32_to_cpu(ioasa_data[i+1]),
5345 be32_to_cpu(ioasa_data[i+2]),
5346 be32_to_cpu(ioasa_data[i+3]));
5351 * ipr_gen_sense - Generate SCSI sense data from an IOASA
5353 * @sense_buf: sense data buffer
5358 static void ipr_gen_sense(struct ipr_cmnd *ipr_cmd)
5361 u8 *sense_buf = ipr_cmd->scsi_cmd->sense_buffer;
5362 struct ipr_resource_entry *res = ipr_cmd->scsi_cmd->device->hostdata;
5363 struct ipr_ioasa *ioasa = &ipr_cmd->s.ioasa;
5364 u32 ioasc = be32_to_cpu(ioasa->hdr.ioasc);
5366 memset(sense_buf, 0, SCSI_SENSE_BUFFERSIZE);
5368 if (ioasc >= IPR_FIRST_DRIVER_IOASC)
5371 ipr_cmd->scsi_cmd->result = SAM_STAT_CHECK_CONDITION;
5373 if (ipr_is_vset_device(res) &&
5374 ioasc == IPR_IOASC_MED_DO_NOT_REALLOC &&
5375 ioasa->u.vset.failing_lba_hi != 0) {
5376 sense_buf[0] = 0x72;
5377 sense_buf[1] = IPR_IOASC_SENSE_KEY(ioasc);
5378 sense_buf[2] = IPR_IOASC_SENSE_CODE(ioasc);
5379 sense_buf[3] = IPR_IOASC_SENSE_QUAL(ioasc);
5383 sense_buf[9] = 0x0A;
5384 sense_buf[10] = 0x80;
5386 failing_lba = be32_to_cpu(ioasa->u.vset.failing_lba_hi);
5388 sense_buf[12] = (failing_lba & 0xff000000) >> 24;
5389 sense_buf[13] = (failing_lba & 0x00ff0000) >> 16;
5390 sense_buf[14] = (failing_lba & 0x0000ff00) >> 8;
5391 sense_buf[15] = failing_lba & 0x000000ff;
5393 failing_lba = be32_to_cpu(ioasa->u.vset.failing_lba_lo);
5395 sense_buf[16] = (failing_lba & 0xff000000) >> 24;
5396 sense_buf[17] = (failing_lba & 0x00ff0000) >> 16;
5397 sense_buf[18] = (failing_lba & 0x0000ff00) >> 8;
5398 sense_buf[19] = failing_lba & 0x000000ff;
5400 sense_buf[0] = 0x70;
5401 sense_buf[2] = IPR_IOASC_SENSE_KEY(ioasc);
5402 sense_buf[12] = IPR_IOASC_SENSE_CODE(ioasc);
5403 sense_buf[13] = IPR_IOASC_SENSE_QUAL(ioasc);
5405 /* Illegal request */
5406 if ((IPR_IOASC_SENSE_KEY(ioasc) == 0x05) &&
5407 (be32_to_cpu(ioasa->hdr.ioasc_specific) & IPR_FIELD_POINTER_VALID)) {
5408 sense_buf[7] = 10; /* additional length */
5410 /* IOARCB was in error */
5411 if (IPR_IOASC_SENSE_CODE(ioasc) == 0x24)
5412 sense_buf[15] = 0xC0;
5413 else /* Parameter data was invalid */
5414 sense_buf[15] = 0x80;
5417 ((IPR_FIELD_POINTER_MASK &
5418 be32_to_cpu(ioasa->hdr.ioasc_specific)) >> 8) & 0xff;
5420 (IPR_FIELD_POINTER_MASK &
5421 be32_to_cpu(ioasa->hdr.ioasc_specific)) & 0xff;
5423 if (ioasc == IPR_IOASC_MED_DO_NOT_REALLOC) {
5424 if (ipr_is_vset_device(res))
5425 failing_lba = be32_to_cpu(ioasa->u.vset.failing_lba_lo);
5427 failing_lba = be32_to_cpu(ioasa->u.dasd.failing_lba);
5429 sense_buf[0] |= 0x80; /* Or in the Valid bit */
5430 sense_buf[3] = (failing_lba & 0xff000000) >> 24;
5431 sense_buf[4] = (failing_lba & 0x00ff0000) >> 16;
5432 sense_buf[5] = (failing_lba & 0x0000ff00) >> 8;
5433 sense_buf[6] = failing_lba & 0x000000ff;
5436 sense_buf[7] = 6; /* additional length */
5442 * ipr_get_autosense - Copy autosense data to sense buffer
5443 * @ipr_cmd: ipr command struct
5445 * This function copies the autosense buffer to the buffer
5446 * in the scsi_cmd, if there is autosense available.
5449 * 1 if autosense was available / 0 if not
5451 static int ipr_get_autosense(struct ipr_cmnd *ipr_cmd)
5453 struct ipr_ioasa *ioasa = &ipr_cmd->s.ioasa;
5454 struct ipr_ioasa64 *ioasa64 = &ipr_cmd->s.ioasa64;
5456 if ((be32_to_cpu(ioasa->hdr.ioasc_specific) & IPR_AUTOSENSE_VALID) == 0)
5459 if (ipr_cmd->ioa_cfg->sis64)
5460 memcpy(ipr_cmd->scsi_cmd->sense_buffer, ioasa64->auto_sense.data,
5461 min_t(u16, be16_to_cpu(ioasa64->auto_sense.auto_sense_len),
5462 SCSI_SENSE_BUFFERSIZE));
5464 memcpy(ipr_cmd->scsi_cmd->sense_buffer, ioasa->auto_sense.data,
5465 min_t(u16, be16_to_cpu(ioasa->auto_sense.auto_sense_len),
5466 SCSI_SENSE_BUFFERSIZE));
5471 * ipr_erp_start - Process an error response for a SCSI op
5472 * @ioa_cfg: ioa config struct
5473 * @ipr_cmd: ipr command struct
5475 * This function determines whether or not to initiate ERP
5476 * on the affected device.
5481 static void ipr_erp_start(struct ipr_ioa_cfg *ioa_cfg,
5482 struct ipr_cmnd *ipr_cmd)
5484 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd;
5485 struct ipr_resource_entry *res = scsi_cmd->device->hostdata;
5486 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
5487 u32 masked_ioasc = ioasc & IPR_IOASC_IOASC_MASK;
5490 ipr_scsi_eh_done(ipr_cmd);
5494 if (!ipr_is_gscsi(res) && masked_ioasc != IPR_IOASC_HW_DEV_BUS_STATUS)
5495 ipr_gen_sense(ipr_cmd);
5497 ipr_dump_ioasa(ioa_cfg, ipr_cmd, res);
5499 switch (masked_ioasc) {
5500 case IPR_IOASC_ABORTED_CMD_TERM_BY_HOST:
5501 if (ipr_is_naca_model(res))
5502 scsi_cmd->result |= (DID_ABORT << 16);
5504 scsi_cmd->result |= (DID_IMM_RETRY << 16);
5506 case IPR_IOASC_IR_RESOURCE_HANDLE:
5507 case IPR_IOASC_IR_NO_CMDS_TO_2ND_IOA:
5508 scsi_cmd->result |= (DID_NO_CONNECT << 16);
5510 case IPR_IOASC_HW_SEL_TIMEOUT:
5511 scsi_cmd->result |= (DID_NO_CONNECT << 16);
5512 if (!ipr_is_naca_model(res))
5513 res->needs_sync_complete = 1;
5515 case IPR_IOASC_SYNC_REQUIRED:
5517 res->needs_sync_complete = 1;
5518 scsi_cmd->result |= (DID_IMM_RETRY << 16);
5520 case IPR_IOASC_MED_DO_NOT_REALLOC: /* prevent retries */
5521 case IPR_IOASA_IR_DUAL_IOA_DISABLED:
5522 scsi_cmd->result |= (DID_PASSTHROUGH << 16);
5524 case IPR_IOASC_BUS_WAS_RESET:
5525 case IPR_IOASC_BUS_WAS_RESET_BY_OTHER:
5527 * Report the bus reset and ask for a retry. The device
5528 * will give CC/UA the next command.
5530 if (!res->resetting_device)
5531 scsi_report_bus_reset(ioa_cfg->host, scsi_cmd->device->channel);
5532 scsi_cmd->result |= (DID_ERROR << 16);
5533 if (!ipr_is_naca_model(res))
5534 res->needs_sync_complete = 1;
5536 case IPR_IOASC_HW_DEV_BUS_STATUS:
5537 scsi_cmd->result |= IPR_IOASC_SENSE_STATUS(ioasc);
5538 if (IPR_IOASC_SENSE_STATUS(ioasc) == SAM_STAT_CHECK_CONDITION) {
5539 if (!ipr_get_autosense(ipr_cmd)) {
5540 if (!ipr_is_naca_model(res)) {
5541 ipr_erp_cancel_all(ipr_cmd);
5546 if (!ipr_is_naca_model(res))
5547 res->needs_sync_complete = 1;
5549 case IPR_IOASC_NR_INIT_CMD_REQUIRED:
5552 if (IPR_IOASC_SENSE_KEY(ioasc) > RECOVERED_ERROR)
5553 scsi_cmd->result |= (DID_ERROR << 16);
5554 if (!ipr_is_vset_device(res) && !ipr_is_naca_model(res))
5555 res->needs_sync_complete = 1;
5559 scsi_dma_unmap(ipr_cmd->scsi_cmd);
5560 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
5561 scsi_cmd->scsi_done(scsi_cmd);
5565 * ipr_scsi_done - mid-layer done function
5566 * @ipr_cmd: ipr command struct
5568 * This function is invoked by the interrupt handler for
5569 * ops generated by the SCSI mid-layer
5574 static void ipr_scsi_done(struct ipr_cmnd *ipr_cmd)
5576 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
5577 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd;
5578 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
5580 scsi_set_resid(scsi_cmd, be32_to_cpu(ipr_cmd->s.ioasa.hdr.residual_data_len));
5582 if (likely(IPR_IOASC_SENSE_KEY(ioasc) == 0)) {
5583 scsi_dma_unmap(ipr_cmd->scsi_cmd);
5584 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
5585 scsi_cmd->scsi_done(scsi_cmd);
5587 ipr_erp_start(ioa_cfg, ipr_cmd);
5591 * ipr_queuecommand - Queue a mid-layer request
5592 * @scsi_cmd: scsi command struct
5593 * @done: done function
5595 * This function queues a request generated by the mid-layer.
5599 * SCSI_MLQUEUE_DEVICE_BUSY if device is busy
5600 * SCSI_MLQUEUE_HOST_BUSY if host is busy
5602 static int ipr_queuecommand(struct scsi_cmnd *scsi_cmd,
5603 void (*done) (struct scsi_cmnd *))
5605 struct ipr_ioa_cfg *ioa_cfg;
5606 struct ipr_resource_entry *res;
5607 struct ipr_ioarcb *ioarcb;
5608 struct ipr_cmnd *ipr_cmd;
5611 scsi_cmd->scsi_done = done;
5612 ioa_cfg = (struct ipr_ioa_cfg *)scsi_cmd->device->host->hostdata;
5613 res = scsi_cmd->device->hostdata;
5614 scsi_cmd->result = (DID_OK << 16);
5617 * We are currently blocking all devices due to a host reset
5618 * We have told the host to stop giving us new requests, but
5619 * ERP ops don't count. FIXME
5621 if (unlikely(!ioa_cfg->allow_cmds && !ioa_cfg->ioa_is_dead))
5622 return SCSI_MLQUEUE_HOST_BUSY;
5625 * FIXME - Create scsi_set_host_offline interface
5626 * and the ioa_is_dead check can be removed
5628 if (unlikely(ioa_cfg->ioa_is_dead || !res)) {
5629 memset(scsi_cmd->sense_buffer, 0, SCSI_SENSE_BUFFERSIZE);
5630 scsi_cmd->result = (DID_NO_CONNECT << 16);
5631 scsi_cmd->scsi_done(scsi_cmd);
5635 if (ipr_is_gata(res) && res->sata_port)
5636 return ata_sas_queuecmd(scsi_cmd, done, res->sata_port->ap);
5638 ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg);
5639 ioarcb = &ipr_cmd->ioarcb;
5640 list_add_tail(&ipr_cmd->queue, &ioa_cfg->pending_q);
5642 memcpy(ioarcb->cmd_pkt.cdb, scsi_cmd->cmnd, scsi_cmd->cmd_len);
5643 ipr_cmd->scsi_cmd = scsi_cmd;
5644 ioarcb->res_handle = res->res_handle;
5645 ipr_cmd->done = ipr_scsi_done;
5646 ipr_trc_hook(ipr_cmd, IPR_TRACE_START, IPR_GET_RES_PHYS_LOC(res));
5648 if (ipr_is_gscsi(res) || ipr_is_vset_device(res)) {
5649 if (scsi_cmd->underflow == 0)
5650 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_NO_ULEN_CHK;
5652 if (res->needs_sync_complete) {
5653 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_SYNC_COMPLETE;
5654 res->needs_sync_complete = 0;
5657 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_NO_LINK_DESC;
5658 ioarcb->cmd_pkt.flags_lo |= IPR_FLAGS_LO_DELAY_AFTER_RST;
5659 ioarcb->cmd_pkt.flags_lo |= IPR_FLAGS_LO_ALIGNED_BFR;
5660 ioarcb->cmd_pkt.flags_lo |= ipr_get_task_attributes(scsi_cmd);
5663 if (scsi_cmd->cmnd[0] >= 0xC0 &&
5664 (!ipr_is_gscsi(res) || scsi_cmd->cmnd[0] == IPR_QUERY_RSRC_STATE))
5665 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_IOACMD;
5667 if (likely(rc == 0)) {
5669 rc = ipr_build_ioadl64(ioa_cfg, ipr_cmd);
5671 rc = ipr_build_ioadl(ioa_cfg, ipr_cmd);
5674 if (likely(rc == 0)) {
5676 ipr_send_command(ipr_cmd);
5678 list_move_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
5679 return SCSI_MLQUEUE_HOST_BUSY;
5686 * ipr_ioctl - IOCTL handler
5687 * @sdev: scsi device struct
5692 * 0 on success / other on failure
5694 static int ipr_ioctl(struct scsi_device *sdev, int cmd, void __user *arg)
5696 struct ipr_resource_entry *res;
5698 res = (struct ipr_resource_entry *)sdev->hostdata;
5699 if (res && ipr_is_gata(res)) {
5700 if (cmd == HDIO_GET_IDENTITY)
5702 return ata_sas_scsi_ioctl(res->sata_port->ap, sdev, cmd, arg);
5709 * ipr_info - Get information about the card/driver
5710 * @scsi_host: scsi host struct
5713 * pointer to buffer with description string
5715 static const char * ipr_ioa_info(struct Scsi_Host *host)
5717 static char buffer[512];
5718 struct ipr_ioa_cfg *ioa_cfg;
5719 unsigned long lock_flags = 0;
5721 ioa_cfg = (struct ipr_ioa_cfg *) host->hostdata;
5723 spin_lock_irqsave(host->host_lock, lock_flags);
5724 sprintf(buffer, "IBM %X Storage Adapter", ioa_cfg->type);
5725 spin_unlock_irqrestore(host->host_lock, lock_flags);
5730 static struct scsi_host_template driver_template = {
5731 .module = THIS_MODULE,
5733 .info = ipr_ioa_info,
5735 .queuecommand = ipr_queuecommand,
5736 .eh_abort_handler = ipr_eh_abort,
5737 .eh_device_reset_handler = ipr_eh_dev_reset,
5738 .eh_host_reset_handler = ipr_eh_host_reset,
5739 .slave_alloc = ipr_slave_alloc,
5740 .slave_configure = ipr_slave_configure,
5741 .slave_destroy = ipr_slave_destroy,
5742 .target_alloc = ipr_target_alloc,
5743 .target_destroy = ipr_target_destroy,
5744 .change_queue_depth = ipr_change_queue_depth,
5745 .change_queue_type = ipr_change_queue_type,
5746 .bios_param = ipr_biosparam,
5747 .can_queue = IPR_MAX_COMMANDS,
5749 .sg_tablesize = IPR_MAX_SGLIST,
5750 .max_sectors = IPR_IOA_MAX_SECTORS,
5751 .cmd_per_lun = IPR_MAX_CMD_PER_LUN,
5752 .use_clustering = ENABLE_CLUSTERING,
5753 .shost_attrs = ipr_ioa_attrs,
5754 .sdev_attrs = ipr_dev_attrs,
5755 .proc_name = IPR_NAME
5759 * ipr_ata_phy_reset - libata phy_reset handler
5760 * @ap: ata port to reset
5763 static void ipr_ata_phy_reset(struct ata_port *ap)
5765 unsigned long flags;
5766 struct ipr_sata_port *sata_port = ap->private_data;
5767 struct ipr_resource_entry *res = sata_port->res;
5768 struct ipr_ioa_cfg *ioa_cfg = sata_port->ioa_cfg;
5772 spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
5773 while(ioa_cfg->in_reset_reload) {
5774 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
5775 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
5776 spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
5779 if (!ioa_cfg->allow_cmds)
5782 rc = ipr_device_reset(ioa_cfg, res);
5785 ap->link.device[0].class = ATA_DEV_NONE;
5789 ap->link.device[0].class = res->ata_class;
5790 if (ap->link.device[0].class == ATA_DEV_UNKNOWN)
5791 ap->link.device[0].class = ATA_DEV_NONE;
5794 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
5799 * ipr_ata_post_internal - Cleanup after an internal command
5800 * @qc: ATA queued command
5805 static void ipr_ata_post_internal(struct ata_queued_cmd *qc)
5807 struct ipr_sata_port *sata_port = qc->ap->private_data;
5808 struct ipr_ioa_cfg *ioa_cfg = sata_port->ioa_cfg;
5809 struct ipr_cmnd *ipr_cmd;
5810 unsigned long flags;
5812 spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
5813 while(ioa_cfg->in_reset_reload) {
5814 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
5815 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
5816 spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
5819 list_for_each_entry(ipr_cmd, &ioa_cfg->pending_q, queue) {
5820 if (ipr_cmd->qc == qc) {
5821 ipr_device_reset(ioa_cfg, sata_port->res);
5825 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
5829 * ipr_copy_sata_tf - Copy a SATA taskfile to an IOA data structure
5830 * @regs: destination
5831 * @tf: source ATA taskfile
5836 static void ipr_copy_sata_tf(struct ipr_ioarcb_ata_regs *regs,
5837 struct ata_taskfile *tf)
5839 regs->feature = tf->feature;
5840 regs->nsect = tf->nsect;
5841 regs->lbal = tf->lbal;
5842 regs->lbam = tf->lbam;
5843 regs->lbah = tf->lbah;
5844 regs->device = tf->device;
5845 regs->command = tf->command;
5846 regs->hob_feature = tf->hob_feature;
5847 regs->hob_nsect = tf->hob_nsect;
5848 regs->hob_lbal = tf->hob_lbal;
5849 regs->hob_lbam = tf->hob_lbam;
5850 regs->hob_lbah = tf->hob_lbah;
5851 regs->ctl = tf->ctl;
5855 * ipr_sata_done - done function for SATA commands
5856 * @ipr_cmd: ipr command struct
5858 * This function is invoked by the interrupt handler for
5859 * ops generated by the SCSI mid-layer to SATA devices
5864 static void ipr_sata_done(struct ipr_cmnd *ipr_cmd)
5866 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
5867 struct ata_queued_cmd *qc = ipr_cmd->qc;
5868 struct ipr_sata_port *sata_port = qc->ap->private_data;
5869 struct ipr_resource_entry *res = sata_port->res;
5870 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
5872 if (ipr_cmd->ioa_cfg->sis64)
5873 memcpy(&sata_port->ioasa, &ipr_cmd->s.ioasa64.u.gata,
5874 sizeof(struct ipr_ioasa_gata));
5876 memcpy(&sata_port->ioasa, &ipr_cmd->s.ioasa.u.gata,
5877 sizeof(struct ipr_ioasa_gata));
5878 ipr_dump_ioasa(ioa_cfg, ipr_cmd, res);
5880 if (be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc_specific) & IPR_ATA_DEVICE_WAS_RESET)
5881 scsi_report_device_reset(ioa_cfg->host, res->bus, res->target);
5883 if (IPR_IOASC_SENSE_KEY(ioasc) > RECOVERED_ERROR)
5884 qc->err_mask |= __ac_err_mask(sata_port->ioasa.status);
5886 qc->err_mask |= ac_err_mask(sata_port->ioasa.status);
5887 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
5888 ata_qc_complete(qc);
5892 * ipr_build_ata_ioadl64 - Build an ATA scatter/gather list
5893 * @ipr_cmd: ipr command struct
5894 * @qc: ATA queued command
5897 static void ipr_build_ata_ioadl64(struct ipr_cmnd *ipr_cmd,
5898 struct ata_queued_cmd *qc)
5900 u32 ioadl_flags = 0;
5901 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
5902 struct ipr_ioadl64_desc *ioadl64 = ipr_cmd->i.ioadl64;
5903 struct ipr_ioadl64_desc *last_ioadl64 = NULL;
5904 int len = qc->nbytes;
5905 struct scatterlist *sg;
5907 dma_addr_t dma_addr = ipr_cmd->dma_addr;
5912 if (qc->dma_dir == DMA_TO_DEVICE) {
5913 ioadl_flags = IPR_IOADL_FLAGS_WRITE;
5914 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ;
5915 } else if (qc->dma_dir == DMA_FROM_DEVICE)
5916 ioadl_flags = IPR_IOADL_FLAGS_READ;
5918 ioarcb->data_transfer_length = cpu_to_be32(len);
5920 cpu_to_be32(sizeof(struct ipr_ioadl64_desc) * ipr_cmd->dma_use_sg);
5921 ioarcb->u.sis64_addr_data.data_ioadl_addr =
5922 cpu_to_be64(dma_addr + offsetof(struct ipr_cmnd, i.ata_ioadl));
5924 for_each_sg(qc->sg, sg, qc->n_elem, si) {
5925 ioadl64->flags = cpu_to_be32(ioadl_flags);
5926 ioadl64->data_len = cpu_to_be32(sg_dma_len(sg));
5927 ioadl64->address = cpu_to_be64(sg_dma_address(sg));
5929 last_ioadl64 = ioadl64;
5933 if (likely(last_ioadl64))
5934 last_ioadl64->flags |= cpu_to_be32(IPR_IOADL_FLAGS_LAST);
5938 * ipr_build_ata_ioadl - Build an ATA scatter/gather list
5939 * @ipr_cmd: ipr command struct
5940 * @qc: ATA queued command
5943 static void ipr_build_ata_ioadl(struct ipr_cmnd *ipr_cmd,
5944 struct ata_queued_cmd *qc)
5946 u32 ioadl_flags = 0;
5947 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
5948 struct ipr_ioadl_desc *ioadl = ipr_cmd->i.ioadl;
5949 struct ipr_ioadl_desc *last_ioadl = NULL;
5950 int len = qc->nbytes;
5951 struct scatterlist *sg;
5957 if (qc->dma_dir == DMA_TO_DEVICE) {
5958 ioadl_flags = IPR_IOADL_FLAGS_WRITE;
5959 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ;
5960 ioarcb->data_transfer_length = cpu_to_be32(len);
5962 cpu_to_be32(sizeof(struct ipr_ioadl_desc) * ipr_cmd->dma_use_sg);
5963 } else if (qc->dma_dir == DMA_FROM_DEVICE) {
5964 ioadl_flags = IPR_IOADL_FLAGS_READ;
5965 ioarcb->read_data_transfer_length = cpu_to_be32(len);
5966 ioarcb->read_ioadl_len =
5967 cpu_to_be32(sizeof(struct ipr_ioadl_desc) * ipr_cmd->dma_use_sg);
5970 for_each_sg(qc->sg, sg, qc->n_elem, si) {
5971 ioadl->flags_and_data_len = cpu_to_be32(ioadl_flags | sg_dma_len(sg));
5972 ioadl->address = cpu_to_be32(sg_dma_address(sg));
5978 if (likely(last_ioadl))
5979 last_ioadl->flags_and_data_len |= cpu_to_be32(IPR_IOADL_FLAGS_LAST);
5983 * ipr_qc_issue - Issue a SATA qc to a device
5984 * @qc: queued command
5989 static unsigned int ipr_qc_issue(struct ata_queued_cmd *qc)
5991 struct ata_port *ap = qc->ap;
5992 struct ipr_sata_port *sata_port = ap->private_data;
5993 struct ipr_resource_entry *res = sata_port->res;
5994 struct ipr_ioa_cfg *ioa_cfg = sata_port->ioa_cfg;
5995 struct ipr_cmnd *ipr_cmd;
5996 struct ipr_ioarcb *ioarcb;
5997 struct ipr_ioarcb_ata_regs *regs;
5999 if (unlikely(!ioa_cfg->allow_cmds || ioa_cfg->ioa_is_dead))
6000 return AC_ERR_SYSTEM;
6002 ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg);
6003 ioarcb = &ipr_cmd->ioarcb;
6005 if (ioa_cfg->sis64) {
6006 regs = &ipr_cmd->i.ata_ioadl.regs;
6007 ioarcb->add_cmd_parms_offset = cpu_to_be16(sizeof(*ioarcb));
6009 regs = &ioarcb->u.add_data.u.regs;
6011 memset(regs, 0, sizeof(*regs));
6012 ioarcb->add_cmd_parms_len = cpu_to_be16(sizeof(*regs));
6014 list_add_tail(&ipr_cmd->queue, &ioa_cfg->pending_q);
6016 ipr_cmd->done = ipr_sata_done;
6017 ipr_cmd->ioarcb.res_handle = res->res_handle;
6018 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_ATA_PASSTHRU;
6019 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_NO_LINK_DESC;
6020 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_NO_ULEN_CHK;
6021 ipr_cmd->dma_use_sg = qc->n_elem;
6024 ipr_build_ata_ioadl64(ipr_cmd, qc);
6026 ipr_build_ata_ioadl(ipr_cmd, qc);
6028 regs->flags |= IPR_ATA_FLAG_STATUS_ON_GOOD_COMPLETION;
6029 ipr_copy_sata_tf(regs, &qc->tf);
6030 memcpy(ioarcb->cmd_pkt.cdb, qc->cdb, IPR_MAX_CDB_LEN);
6031 ipr_trc_hook(ipr_cmd, IPR_TRACE_START, IPR_GET_RES_PHYS_LOC(res));
6033 switch (qc->tf.protocol) {
6034 case ATA_PROT_NODATA:
6039 regs->flags |= IPR_ATA_FLAG_XFER_TYPE_DMA;
6042 case ATAPI_PROT_PIO:
6043 case ATAPI_PROT_NODATA:
6044 regs->flags |= IPR_ATA_FLAG_PACKET_CMD;
6047 case ATAPI_PROT_DMA:
6048 regs->flags |= IPR_ATA_FLAG_PACKET_CMD;
6049 regs->flags |= IPR_ATA_FLAG_XFER_TYPE_DMA;
6054 return AC_ERR_INVALID;
6059 ipr_send_command(ipr_cmd);
6065 * ipr_qc_fill_rtf - Read result TF
6066 * @qc: ATA queued command
6071 static bool ipr_qc_fill_rtf(struct ata_queued_cmd *qc)
6073 struct ipr_sata_port *sata_port = qc->ap->private_data;
6074 struct ipr_ioasa_gata *g = &sata_port->ioasa;
6075 struct ata_taskfile *tf = &qc->result_tf;
6077 tf->feature = g->error;
6078 tf->nsect = g->nsect;
6082 tf->device = g->device;
6083 tf->command = g->status;
6084 tf->hob_nsect = g->hob_nsect;
6085 tf->hob_lbal = g->hob_lbal;
6086 tf->hob_lbam = g->hob_lbam;
6087 tf->hob_lbah = g->hob_lbah;
6088 tf->ctl = g->alt_status;
6093 static struct ata_port_operations ipr_sata_ops = {
6094 .phy_reset = ipr_ata_phy_reset,
6095 .hardreset = ipr_sata_reset,
6096 .post_internal_cmd = ipr_ata_post_internal,
6097 .qc_prep = ata_noop_qc_prep,
6098 .qc_issue = ipr_qc_issue,
6099 .qc_fill_rtf = ipr_qc_fill_rtf,
6100 .port_start = ata_sas_port_start,
6101 .port_stop = ata_sas_port_stop
6104 static struct ata_port_info sata_port_info = {
6105 .flags = ATA_FLAG_SATA | ATA_FLAG_NO_LEGACY | ATA_FLAG_SATA_RESET |
6106 ATA_FLAG_MMIO | ATA_FLAG_PIO_DMA,
6107 .pio_mask = 0x10, /* pio4 */
6109 .udma_mask = 0x7f, /* udma0-6 */
6110 .port_ops = &ipr_sata_ops
6113 #ifdef CONFIG_PPC_PSERIES
6114 static const u16 ipr_blocked_processors[] = {
6126 * ipr_invalid_adapter - Determine if this adapter is supported on this hardware
6127 * @ioa_cfg: ioa cfg struct
6129 * Adapters that use Gemstone revision < 3.1 do not work reliably on
6130 * certain pSeries hardware. This function determines if the given
6131 * adapter is in one of these confgurations or not.
6134 * 1 if adapter is not supported / 0 if adapter is supported
6136 static int ipr_invalid_adapter(struct ipr_ioa_cfg *ioa_cfg)
6140 if ((ioa_cfg->type == 0x5702) && (ioa_cfg->pdev->revision < 4)) {
6141 for (i = 0; i < ARRAY_SIZE(ipr_blocked_processors); i++){
6142 if (__is_processor(ipr_blocked_processors[i]))
6149 #define ipr_invalid_adapter(ioa_cfg) 0
6153 * ipr_ioa_bringdown_done - IOA bring down completion.
6154 * @ipr_cmd: ipr command struct
6156 * This function processes the completion of an adapter bring down.
6157 * It wakes any reset sleepers.
6162 static int ipr_ioa_bringdown_done(struct ipr_cmnd *ipr_cmd)
6164 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6167 ioa_cfg->in_reset_reload = 0;
6168 ioa_cfg->reset_retries = 0;
6169 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
6170 wake_up_all(&ioa_cfg->reset_wait_q);
6172 spin_unlock_irq(ioa_cfg->host->host_lock);
6173 scsi_unblock_requests(ioa_cfg->host);
6174 spin_lock_irq(ioa_cfg->host->host_lock);
6177 return IPR_RC_JOB_RETURN;
6181 * ipr_ioa_reset_done - IOA reset completion.
6182 * @ipr_cmd: ipr command struct
6184 * This function processes the completion of an adapter reset.
6185 * It schedules any necessary mid-layer add/removes and
6186 * wakes any reset sleepers.
6191 static int ipr_ioa_reset_done(struct ipr_cmnd *ipr_cmd)
6193 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6194 struct ipr_resource_entry *res;
6195 struct ipr_hostrcb *hostrcb, *temp;
6199 ioa_cfg->in_reset_reload = 0;
6200 ioa_cfg->allow_cmds = 1;
6201 ioa_cfg->reset_cmd = NULL;
6202 ioa_cfg->doorbell |= IPR_RUNTIME_RESET;
6204 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) {
6205 if (ioa_cfg->allow_ml_add_del && (res->add_to_ml || res->del_from_ml)) {
6210 schedule_work(&ioa_cfg->work_q);
6212 list_for_each_entry_safe(hostrcb, temp, &ioa_cfg->hostrcb_free_q, queue) {
6213 list_del(&hostrcb->queue);
6214 if (i++ < IPR_NUM_LOG_HCAMS)
6215 ipr_send_hcam(ioa_cfg, IPR_HCAM_CDB_OP_CODE_LOG_DATA, hostrcb);
6217 ipr_send_hcam(ioa_cfg, IPR_HCAM_CDB_OP_CODE_CONFIG_CHANGE, hostrcb);
6220 scsi_report_bus_reset(ioa_cfg->host, IPR_VSET_BUS);
6221 dev_info(&ioa_cfg->pdev->dev, "IOA initialized.\n");
6223 ioa_cfg->reset_retries = 0;
6224 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
6225 wake_up_all(&ioa_cfg->reset_wait_q);
6227 spin_unlock(ioa_cfg->host->host_lock);
6228 scsi_unblock_requests(ioa_cfg->host);
6229 spin_lock(ioa_cfg->host->host_lock);
6231 if (!ioa_cfg->allow_cmds)
6232 scsi_block_requests(ioa_cfg->host);
6235 return IPR_RC_JOB_RETURN;
6239 * ipr_set_sup_dev_dflt - Initialize a Set Supported Device buffer
6240 * @supported_dev: supported device struct
6241 * @vpids: vendor product id struct
6246 static void ipr_set_sup_dev_dflt(struct ipr_supported_device *supported_dev,
6247 struct ipr_std_inq_vpids *vpids)
6249 memset(supported_dev, 0, sizeof(struct ipr_supported_device));
6250 memcpy(&supported_dev->vpids, vpids, sizeof(struct ipr_std_inq_vpids));
6251 supported_dev->num_records = 1;
6252 supported_dev->data_length =
6253 cpu_to_be16(sizeof(struct ipr_supported_device));
6254 supported_dev->reserved = 0;
6258 * ipr_set_supported_devs - Send Set Supported Devices for a device
6259 * @ipr_cmd: ipr command struct
6261 * This function sends a Set Supported Devices to the adapter
6264 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
6266 static int ipr_set_supported_devs(struct ipr_cmnd *ipr_cmd)
6268 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6269 struct ipr_supported_device *supp_dev = &ioa_cfg->vpd_cbs->supp_dev;
6270 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
6271 struct ipr_resource_entry *res = ipr_cmd->u.res;
6273 ipr_cmd->job_step = ipr_ioa_reset_done;
6275 list_for_each_entry_continue(res, &ioa_cfg->used_res_q, queue) {
6276 if (!ipr_is_scsi_disk(res))
6279 ipr_cmd->u.res = res;
6280 ipr_set_sup_dev_dflt(supp_dev, &res->std_inq_data.vpids);
6282 ioarcb->res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE);
6283 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ;
6284 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_IOACMD;
6286 ioarcb->cmd_pkt.cdb[0] = IPR_SET_SUPPORTED_DEVICES;
6287 ioarcb->cmd_pkt.cdb[1] = IPR_SET_ALL_SUPPORTED_DEVICES;
6288 ioarcb->cmd_pkt.cdb[7] = (sizeof(struct ipr_supported_device) >> 8) & 0xff;
6289 ioarcb->cmd_pkt.cdb[8] = sizeof(struct ipr_supported_device) & 0xff;
6291 ipr_init_ioadl(ipr_cmd,
6292 ioa_cfg->vpd_cbs_dma +
6293 offsetof(struct ipr_misc_cbs, supp_dev),
6294 sizeof(struct ipr_supported_device),
6295 IPR_IOADL_FLAGS_WRITE_LAST);
6297 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout,
6298 IPR_SET_SUP_DEVICE_TIMEOUT);
6300 if (!ioa_cfg->sis64)
6301 ipr_cmd->job_step = ipr_set_supported_devs;
6302 return IPR_RC_JOB_RETURN;
6305 return IPR_RC_JOB_CONTINUE;
6309 * ipr_get_mode_page - Locate specified mode page
6310 * @mode_pages: mode page buffer
6311 * @page_code: page code to find
6312 * @len: minimum required length for mode page
6315 * pointer to mode page / NULL on failure
6317 static void *ipr_get_mode_page(struct ipr_mode_pages *mode_pages,
6318 u32 page_code, u32 len)
6320 struct ipr_mode_page_hdr *mode_hdr;
6324 if (!mode_pages || (mode_pages->hdr.length == 0))
6327 length = (mode_pages->hdr.length + 1) - 4 - mode_pages->hdr.block_desc_len;
6328 mode_hdr = (struct ipr_mode_page_hdr *)
6329 (mode_pages->data + mode_pages->hdr.block_desc_len);
6332 if (IPR_GET_MODE_PAGE_CODE(mode_hdr) == page_code) {
6333 if (mode_hdr->page_length >= (len - sizeof(struct ipr_mode_page_hdr)))
6337 page_length = (sizeof(struct ipr_mode_page_hdr) +
6338 mode_hdr->page_length);
6339 length -= page_length;
6340 mode_hdr = (struct ipr_mode_page_hdr *)
6341 ((unsigned long)mode_hdr + page_length);
6348 * ipr_check_term_power - Check for term power errors
6349 * @ioa_cfg: ioa config struct
6350 * @mode_pages: IOAFP mode pages buffer
6352 * Check the IOAFP's mode page 28 for term power errors
6357 static void ipr_check_term_power(struct ipr_ioa_cfg *ioa_cfg,
6358 struct ipr_mode_pages *mode_pages)
6362 struct ipr_dev_bus_entry *bus;
6363 struct ipr_mode_page28 *mode_page;
6365 mode_page = ipr_get_mode_page(mode_pages, 0x28,
6366 sizeof(struct ipr_mode_page28));
6368 entry_length = mode_page->entry_length;
6370 bus = mode_page->bus;
6372 for (i = 0; i < mode_page->num_entries; i++) {
6373 if (bus->flags & IPR_SCSI_ATTR_NO_TERM_PWR) {
6374 dev_err(&ioa_cfg->pdev->dev,
6375 "Term power is absent on scsi bus %d\n",
6379 bus = (struct ipr_dev_bus_entry *)((char *)bus + entry_length);
6384 * ipr_scsi_bus_speed_limit - Limit the SCSI speed based on SES table
6385 * @ioa_cfg: ioa config struct
6387 * Looks through the config table checking for SES devices. If
6388 * the SES device is in the SES table indicating a maximum SCSI
6389 * bus speed, the speed is limited for the bus.
6394 static void ipr_scsi_bus_speed_limit(struct ipr_ioa_cfg *ioa_cfg)
6399 for (i = 0; i < IPR_MAX_NUM_BUSES; i++) {
6400 max_xfer_rate = ipr_get_max_scsi_speed(ioa_cfg, i,
6401 ioa_cfg->bus_attr[i].bus_width);
6403 if (max_xfer_rate < ioa_cfg->bus_attr[i].max_xfer_rate)
6404 ioa_cfg->bus_attr[i].max_xfer_rate = max_xfer_rate;
6409 * ipr_modify_ioafp_mode_page_28 - Modify IOAFP Mode Page 28
6410 * @ioa_cfg: ioa config struct
6411 * @mode_pages: mode page 28 buffer
6413 * Updates mode page 28 based on driver configuration
6418 static void ipr_modify_ioafp_mode_page_28(struct ipr_ioa_cfg *ioa_cfg,
6419 struct ipr_mode_pages *mode_pages)
6421 int i, entry_length;
6422 struct ipr_dev_bus_entry *bus;
6423 struct ipr_bus_attributes *bus_attr;
6424 struct ipr_mode_page28 *mode_page;
6426 mode_page = ipr_get_mode_page(mode_pages, 0x28,
6427 sizeof(struct ipr_mode_page28));
6429 entry_length = mode_page->entry_length;
6431 /* Loop for each device bus entry */
6432 for (i = 0, bus = mode_page->bus;
6433 i < mode_page->num_entries;
6434 i++, bus = (struct ipr_dev_bus_entry *)((u8 *)bus + entry_length)) {
6435 if (bus->res_addr.bus > IPR_MAX_NUM_BUSES) {
6436 dev_err(&ioa_cfg->pdev->dev,
6437 "Invalid resource address reported: 0x%08X\n",
6438 IPR_GET_PHYS_LOC(bus->res_addr));
6442 bus_attr = &ioa_cfg->bus_attr[i];
6443 bus->extended_reset_delay = IPR_EXTENDED_RESET_DELAY;
6444 bus->bus_width = bus_attr->bus_width;
6445 bus->max_xfer_rate = cpu_to_be32(bus_attr->max_xfer_rate);
6446 bus->flags &= ~IPR_SCSI_ATTR_QAS_MASK;
6447 if (bus_attr->qas_enabled)
6448 bus->flags |= IPR_SCSI_ATTR_ENABLE_QAS;
6450 bus->flags |= IPR_SCSI_ATTR_DISABLE_QAS;
6455 * ipr_build_mode_select - Build a mode select command
6456 * @ipr_cmd: ipr command struct
6457 * @res_handle: resource handle to send command to
6458 * @parm: Byte 2 of Mode Sense command
6459 * @dma_addr: DMA buffer address
6460 * @xfer_len: data transfer length
6465 static void ipr_build_mode_select(struct ipr_cmnd *ipr_cmd,
6466 __be32 res_handle, u8 parm,
6467 dma_addr_t dma_addr, u8 xfer_len)
6469 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
6471 ioarcb->res_handle = res_handle;
6472 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_SCSICDB;
6473 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ;
6474 ioarcb->cmd_pkt.cdb[0] = MODE_SELECT;
6475 ioarcb->cmd_pkt.cdb[1] = parm;
6476 ioarcb->cmd_pkt.cdb[4] = xfer_len;
6478 ipr_init_ioadl(ipr_cmd, dma_addr, xfer_len, IPR_IOADL_FLAGS_WRITE_LAST);
6482 * ipr_ioafp_mode_select_page28 - Issue Mode Select Page 28 to IOA
6483 * @ipr_cmd: ipr command struct
6485 * This function sets up the SCSI bus attributes and sends
6486 * a Mode Select for Page 28 to activate them.
6491 static int ipr_ioafp_mode_select_page28(struct ipr_cmnd *ipr_cmd)
6493 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6494 struct ipr_mode_pages *mode_pages = &ioa_cfg->vpd_cbs->mode_pages;
6498 ipr_scsi_bus_speed_limit(ioa_cfg);
6499 ipr_check_term_power(ioa_cfg, mode_pages);
6500 ipr_modify_ioafp_mode_page_28(ioa_cfg, mode_pages);
6501 length = mode_pages->hdr.length + 1;
6502 mode_pages->hdr.length = 0;
6504 ipr_build_mode_select(ipr_cmd, cpu_to_be32(IPR_IOA_RES_HANDLE), 0x11,
6505 ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, mode_pages),
6508 ipr_cmd->job_step = ipr_set_supported_devs;
6509 ipr_cmd->u.res = list_entry(ioa_cfg->used_res_q.next,
6510 struct ipr_resource_entry, queue);
6511 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT);
6514 return IPR_RC_JOB_RETURN;
6518 * ipr_build_mode_sense - Builds a mode sense command
6519 * @ipr_cmd: ipr command struct
6520 * @res: resource entry struct
6521 * @parm: Byte 2 of mode sense command
6522 * @dma_addr: DMA address of mode sense buffer
6523 * @xfer_len: Size of DMA buffer
6528 static void ipr_build_mode_sense(struct ipr_cmnd *ipr_cmd,
6530 u8 parm, dma_addr_t dma_addr, u8 xfer_len)
6532 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
6534 ioarcb->res_handle = res_handle;
6535 ioarcb->cmd_pkt.cdb[0] = MODE_SENSE;
6536 ioarcb->cmd_pkt.cdb[2] = parm;
6537 ioarcb->cmd_pkt.cdb[4] = xfer_len;
6538 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_SCSICDB;
6540 ipr_init_ioadl(ipr_cmd, dma_addr, xfer_len, IPR_IOADL_FLAGS_READ_LAST);
6544 * ipr_reset_cmd_failed - Handle failure of IOA reset command
6545 * @ipr_cmd: ipr command struct
6547 * This function handles the failure of an IOA bringup command.
6552 static int ipr_reset_cmd_failed(struct ipr_cmnd *ipr_cmd)
6554 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6555 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
6557 dev_err(&ioa_cfg->pdev->dev,
6558 "0x%02X failed with IOASC: 0x%08X\n",
6559 ipr_cmd->ioarcb.cmd_pkt.cdb[0], ioasc);
6561 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
6562 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
6563 return IPR_RC_JOB_RETURN;
6567 * ipr_reset_mode_sense_failed - Handle failure of IOAFP mode sense
6568 * @ipr_cmd: ipr command struct
6570 * This function handles the failure of a Mode Sense to the IOAFP.
6571 * Some adapters do not handle all mode pages.
6574 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
6576 static int ipr_reset_mode_sense_failed(struct ipr_cmnd *ipr_cmd)
6578 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6579 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
6581 if (ioasc == IPR_IOASC_IR_INVALID_REQ_TYPE_OR_PKT) {
6582 ipr_cmd->job_step = ipr_set_supported_devs;
6583 ipr_cmd->u.res = list_entry(ioa_cfg->used_res_q.next,
6584 struct ipr_resource_entry, queue);
6585 return IPR_RC_JOB_CONTINUE;
6588 return ipr_reset_cmd_failed(ipr_cmd);
6592 * ipr_ioafp_mode_sense_page28 - Issue Mode Sense Page 28 to IOA
6593 * @ipr_cmd: ipr command struct
6595 * This function send a Page 28 mode sense to the IOA to
6596 * retrieve SCSI bus attributes.
6601 static int ipr_ioafp_mode_sense_page28(struct ipr_cmnd *ipr_cmd)
6603 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6606 ipr_build_mode_sense(ipr_cmd, cpu_to_be32(IPR_IOA_RES_HANDLE),
6607 0x28, ioa_cfg->vpd_cbs_dma +
6608 offsetof(struct ipr_misc_cbs, mode_pages),
6609 sizeof(struct ipr_mode_pages));
6611 ipr_cmd->job_step = ipr_ioafp_mode_select_page28;
6612 ipr_cmd->job_step_failed = ipr_reset_mode_sense_failed;
6614 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT);
6617 return IPR_RC_JOB_RETURN;
6621 * ipr_ioafp_mode_select_page24 - Issue Mode Select to IOA
6622 * @ipr_cmd: ipr command struct
6624 * This function enables dual IOA RAID support if possible.
6629 static int ipr_ioafp_mode_select_page24(struct ipr_cmnd *ipr_cmd)
6631 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6632 struct ipr_mode_pages *mode_pages = &ioa_cfg->vpd_cbs->mode_pages;
6633 struct ipr_mode_page24 *mode_page;
6637 mode_page = ipr_get_mode_page(mode_pages, 0x24,
6638 sizeof(struct ipr_mode_page24));
6641 mode_page->flags |= IPR_ENABLE_DUAL_IOA_AF;
6643 length = mode_pages->hdr.length + 1;
6644 mode_pages->hdr.length = 0;
6646 ipr_build_mode_select(ipr_cmd, cpu_to_be32(IPR_IOA_RES_HANDLE), 0x11,
6647 ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, mode_pages),
6650 ipr_cmd->job_step = ipr_ioafp_mode_sense_page28;
6651 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT);
6654 return IPR_RC_JOB_RETURN;
6658 * ipr_reset_mode_sense_page24_failed - Handle failure of IOAFP mode sense
6659 * @ipr_cmd: ipr command struct
6661 * This function handles the failure of a Mode Sense to the IOAFP.
6662 * Some adapters do not handle all mode pages.
6665 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
6667 static int ipr_reset_mode_sense_page24_failed(struct ipr_cmnd *ipr_cmd)
6669 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
6671 if (ioasc == IPR_IOASC_IR_INVALID_REQ_TYPE_OR_PKT) {
6672 ipr_cmd->job_step = ipr_ioafp_mode_sense_page28;
6673 return IPR_RC_JOB_CONTINUE;
6676 return ipr_reset_cmd_failed(ipr_cmd);
6680 * ipr_ioafp_mode_sense_page24 - Issue Page 24 Mode Sense to IOA
6681 * @ipr_cmd: ipr command struct
6683 * This function send a mode sense to the IOA to retrieve
6684 * the IOA Advanced Function Control mode page.
6689 static int ipr_ioafp_mode_sense_page24(struct ipr_cmnd *ipr_cmd)
6691 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6694 ipr_build_mode_sense(ipr_cmd, cpu_to_be32(IPR_IOA_RES_HANDLE),
6695 0x24, ioa_cfg->vpd_cbs_dma +
6696 offsetof(struct ipr_misc_cbs, mode_pages),
6697 sizeof(struct ipr_mode_pages));
6699 ipr_cmd->job_step = ipr_ioafp_mode_select_page24;
6700 ipr_cmd->job_step_failed = ipr_reset_mode_sense_page24_failed;
6702 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT);
6705 return IPR_RC_JOB_RETURN;
6709 * ipr_init_res_table - Initialize the resource table
6710 * @ipr_cmd: ipr command struct
6712 * This function looks through the existing resource table, comparing
6713 * it with the config table. This function will take care of old/new
6714 * devices and schedule adding/removing them from the mid-layer
6718 * IPR_RC_JOB_CONTINUE
6720 static int ipr_init_res_table(struct ipr_cmnd *ipr_cmd)
6722 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6723 struct ipr_resource_entry *res, *temp;
6724 struct ipr_config_table_entry_wrapper cfgtew;
6725 int entries, found, flag, i;
6730 flag = ioa_cfg->u.cfg_table64->hdr64.flags;
6732 flag = ioa_cfg->u.cfg_table->hdr.flags;
6734 if (flag & IPR_UCODE_DOWNLOAD_REQ)
6735 dev_err(&ioa_cfg->pdev->dev, "Microcode download required\n");
6737 list_for_each_entry_safe(res, temp, &ioa_cfg->used_res_q, queue)
6738 list_move_tail(&res->queue, &old_res);
6741 entries = be16_to_cpu(ioa_cfg->u.cfg_table64->hdr64.num_entries);
6743 entries = ioa_cfg->u.cfg_table->hdr.num_entries;
6745 for (i = 0; i < entries; i++) {
6747 cfgtew.u.cfgte64 = &ioa_cfg->u.cfg_table64->dev[i];
6749 cfgtew.u.cfgte = &ioa_cfg->u.cfg_table->dev[i];
6752 list_for_each_entry_safe(res, temp, &old_res, queue) {
6753 if (ipr_is_same_device(res, &cfgtew)) {
6754 list_move_tail(&res->queue, &ioa_cfg->used_res_q);
6761 if (list_empty(&ioa_cfg->free_res_q)) {
6762 dev_err(&ioa_cfg->pdev->dev, "Too many devices attached\n");
6767 res = list_entry(ioa_cfg->free_res_q.next,
6768 struct ipr_resource_entry, queue);
6769 list_move_tail(&res->queue, &ioa_cfg->used_res_q);
6770 ipr_init_res_entry(res, &cfgtew);
6772 } else if (res->sdev && (ipr_is_vset_device(res) || ipr_is_scsi_disk(res)))
6773 res->sdev->allow_restart = 1;
6776 ipr_update_res_entry(res, &cfgtew);
6779 list_for_each_entry_safe(res, temp, &old_res, queue) {
6781 res->del_from_ml = 1;
6782 res->res_handle = IPR_INVALID_RES_HANDLE;
6783 list_move_tail(&res->queue, &ioa_cfg->used_res_q);
6787 list_for_each_entry_safe(res, temp, &old_res, queue) {
6788 ipr_clear_res_target(res);
6789 list_move_tail(&res->queue, &ioa_cfg->free_res_q);
6792 if (ioa_cfg->dual_raid && ipr_dual_ioa_raid)
6793 ipr_cmd->job_step = ipr_ioafp_mode_sense_page24;
6795 ipr_cmd->job_step = ipr_ioafp_mode_sense_page28;
6798 return IPR_RC_JOB_CONTINUE;
6802 * ipr_ioafp_query_ioa_cfg - Send a Query IOA Config to the adapter.
6803 * @ipr_cmd: ipr command struct
6805 * This function sends a Query IOA Configuration command
6806 * to the adapter to retrieve the IOA configuration table.
6811 static int ipr_ioafp_query_ioa_cfg(struct ipr_cmnd *ipr_cmd)
6813 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6814 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
6815 struct ipr_inquiry_page3 *ucode_vpd = &ioa_cfg->vpd_cbs->page3_data;
6816 struct ipr_inquiry_cap *cap = &ioa_cfg->vpd_cbs->cap;
6819 if (cap->cap & IPR_CAP_DUAL_IOA_RAID)
6820 ioa_cfg->dual_raid = 1;
6821 dev_info(&ioa_cfg->pdev->dev, "Adapter firmware version: %02X%02X%02X%02X\n",
6822 ucode_vpd->major_release, ucode_vpd->card_type,
6823 ucode_vpd->minor_release[0], ucode_vpd->minor_release[1]);
6824 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_IOACMD;
6825 ioarcb->res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE);
6827 ioarcb->cmd_pkt.cdb[0] = IPR_QUERY_IOA_CONFIG;
6828 ioarcb->cmd_pkt.cdb[6] = (ioa_cfg->cfg_table_size >> 16) & 0xff;
6829 ioarcb->cmd_pkt.cdb[7] = (ioa_cfg->cfg_table_size >> 8) & 0xff;
6830 ioarcb->cmd_pkt.cdb[8] = ioa_cfg->cfg_table_size & 0xff;
6832 ipr_init_ioadl(ipr_cmd, ioa_cfg->cfg_table_dma, ioa_cfg->cfg_table_size,
6833 IPR_IOADL_FLAGS_READ_LAST);
6835 ipr_cmd->job_step = ipr_init_res_table;
6837 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT);
6840 return IPR_RC_JOB_RETURN;
6844 * ipr_ioafp_inquiry - Send an Inquiry to the adapter.
6845 * @ipr_cmd: ipr command struct
6847 * This utility function sends an inquiry to the adapter.
6852 static void ipr_ioafp_inquiry(struct ipr_cmnd *ipr_cmd, u8 flags, u8 page,
6853 dma_addr_t dma_addr, u8 xfer_len)
6855 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
6858 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_SCSICDB;
6859 ioarcb->res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE);
6861 ioarcb->cmd_pkt.cdb[0] = INQUIRY;
6862 ioarcb->cmd_pkt.cdb[1] = flags;
6863 ioarcb->cmd_pkt.cdb[2] = page;
6864 ioarcb->cmd_pkt.cdb[4] = xfer_len;
6866 ipr_init_ioadl(ipr_cmd, dma_addr, xfer_len, IPR_IOADL_FLAGS_READ_LAST);
6868 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT);
6873 * ipr_inquiry_page_supported - Is the given inquiry page supported
6874 * @page0: inquiry page 0 buffer
6877 * This function determines if the specified inquiry page is supported.
6880 * 1 if page is supported / 0 if not
6882 static int ipr_inquiry_page_supported(struct ipr_inquiry_page0 *page0, u8 page)
6886 for (i = 0; i < min_t(u8, page0->len, IPR_INQUIRY_PAGE0_ENTRIES); i++)
6887 if (page0->page[i] == page)
6894 * ipr_ioafp_cap_inquiry - Send a Page 0xD0 Inquiry to the adapter.
6895 * @ipr_cmd: ipr command struct
6897 * This function sends a Page 0xD0 inquiry to the adapter
6898 * to retrieve adapter capabilities.
6901 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
6903 static int ipr_ioafp_cap_inquiry(struct ipr_cmnd *ipr_cmd)
6905 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6906 struct ipr_inquiry_page0 *page0 = &ioa_cfg->vpd_cbs->page0_data;
6907 struct ipr_inquiry_cap *cap = &ioa_cfg->vpd_cbs->cap;
6910 ipr_cmd->job_step = ipr_ioafp_query_ioa_cfg;
6911 memset(cap, 0, sizeof(*cap));
6913 if (ipr_inquiry_page_supported(page0, 0xD0)) {
6914 ipr_ioafp_inquiry(ipr_cmd, 1, 0xD0,
6915 ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, cap),
6916 sizeof(struct ipr_inquiry_cap));
6917 return IPR_RC_JOB_RETURN;
6921 return IPR_RC_JOB_CONTINUE;
6925 * ipr_ioafp_page3_inquiry - Send a Page 3 Inquiry to the adapter.
6926 * @ipr_cmd: ipr command struct
6928 * This function sends a Page 3 inquiry to the adapter
6929 * to retrieve software VPD information.
6932 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
6934 static int ipr_ioafp_page3_inquiry(struct ipr_cmnd *ipr_cmd)
6936 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6940 ipr_cmd->job_step = ipr_ioafp_cap_inquiry;
6942 ipr_ioafp_inquiry(ipr_cmd, 1, 3,
6943 ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, page3_data),
6944 sizeof(struct ipr_inquiry_page3));
6947 return IPR_RC_JOB_RETURN;
6951 * ipr_ioafp_page0_inquiry - Send a Page 0 Inquiry to the adapter.
6952 * @ipr_cmd: ipr command struct
6954 * This function sends a Page 0 inquiry to the adapter
6955 * to retrieve supported inquiry pages.
6958 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
6960 static int ipr_ioafp_page0_inquiry(struct ipr_cmnd *ipr_cmd)
6962 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6967 /* Grab the type out of the VPD and store it away */
6968 memcpy(type, ioa_cfg->vpd_cbs->ioa_vpd.std_inq_data.vpids.product_id, 4);
6970 ioa_cfg->type = simple_strtoul((char *)type, NULL, 16);
6972 ipr_cmd->job_step = ipr_ioafp_page3_inquiry;
6974 ipr_ioafp_inquiry(ipr_cmd, 1, 0,
6975 ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, page0_data),
6976 sizeof(struct ipr_inquiry_page0));
6979 return IPR_RC_JOB_RETURN;
6983 * ipr_ioafp_std_inquiry - Send a Standard Inquiry to the adapter.
6984 * @ipr_cmd: ipr command struct
6986 * This function sends a standard inquiry to the adapter.
6991 static int ipr_ioafp_std_inquiry(struct ipr_cmnd *ipr_cmd)
6993 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6996 ipr_cmd->job_step = ipr_ioafp_page0_inquiry;
6998 ipr_ioafp_inquiry(ipr_cmd, 0, 0,
6999 ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, ioa_vpd),
7000 sizeof(struct ipr_ioa_vpd));
7003 return IPR_RC_JOB_RETURN;
7007 * ipr_ioafp_identify_hrrq - Send Identify Host RRQ.
7008 * @ipr_cmd: ipr command struct
7010 * This function send an Identify Host Request Response Queue
7011 * command to establish the HRRQ with the adapter.
7016 static int ipr_ioafp_identify_hrrq(struct ipr_cmnd *ipr_cmd)
7018 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7019 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
7022 dev_info(&ioa_cfg->pdev->dev, "Starting IOA initialization sequence.\n");
7024 ioarcb->cmd_pkt.cdb[0] = IPR_ID_HOST_RR_Q;
7025 ioarcb->res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE);
7027 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_IOACMD;
7029 ioarcb->cmd_pkt.cdb[1] = 0x1;
7030 ioarcb->cmd_pkt.cdb[2] =
7031 ((u64) ioa_cfg->host_rrq_dma >> 24) & 0xff;
7032 ioarcb->cmd_pkt.cdb[3] =
7033 ((u64) ioa_cfg->host_rrq_dma >> 16) & 0xff;
7034 ioarcb->cmd_pkt.cdb[4] =
7035 ((u64) ioa_cfg->host_rrq_dma >> 8) & 0xff;
7036 ioarcb->cmd_pkt.cdb[5] =
7037 ((u64) ioa_cfg->host_rrq_dma) & 0xff;
7038 ioarcb->cmd_pkt.cdb[7] =
7039 ((sizeof(u32) * IPR_NUM_CMD_BLKS) >> 8) & 0xff;
7040 ioarcb->cmd_pkt.cdb[8] =
7041 (sizeof(u32) * IPR_NUM_CMD_BLKS) & 0xff;
7043 if (ioa_cfg->sis64) {
7044 ioarcb->cmd_pkt.cdb[10] =
7045 ((u64) ioa_cfg->host_rrq_dma >> 56) & 0xff;
7046 ioarcb->cmd_pkt.cdb[11] =
7047 ((u64) ioa_cfg->host_rrq_dma >> 48) & 0xff;
7048 ioarcb->cmd_pkt.cdb[12] =
7049 ((u64) ioa_cfg->host_rrq_dma >> 40) & 0xff;
7050 ioarcb->cmd_pkt.cdb[13] =
7051 ((u64) ioa_cfg->host_rrq_dma >> 32) & 0xff;
7054 ipr_cmd->job_step = ipr_ioafp_std_inquiry;
7056 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT);
7059 return IPR_RC_JOB_RETURN;
7063 * ipr_reset_timer_done - Adapter reset timer function
7064 * @ipr_cmd: ipr command struct
7066 * Description: This function is used in adapter reset processing
7067 * for timing events. If the reset_cmd pointer in the IOA
7068 * config struct is not this adapter's we are doing nested
7069 * resets and fail_all_ops will take care of freeing the
7075 static void ipr_reset_timer_done(struct ipr_cmnd *ipr_cmd)
7077 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7078 unsigned long lock_flags = 0;
7080 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
7082 if (ioa_cfg->reset_cmd == ipr_cmd) {
7083 list_del(&ipr_cmd->queue);
7084 ipr_cmd->done(ipr_cmd);
7087 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
7091 * ipr_reset_start_timer - Start a timer for adapter reset job
7092 * @ipr_cmd: ipr command struct
7093 * @timeout: timeout value
7095 * Description: This function is used in adapter reset processing
7096 * for timing events. If the reset_cmd pointer in the IOA
7097 * config struct is not this adapter's we are doing nested
7098 * resets and fail_all_ops will take care of freeing the
7104 static void ipr_reset_start_timer(struct ipr_cmnd *ipr_cmd,
7105 unsigned long timeout)
7107 list_add_tail(&ipr_cmd->queue, &ipr_cmd->ioa_cfg->pending_q);
7108 ipr_cmd->done = ipr_reset_ioa_job;
7110 ipr_cmd->timer.data = (unsigned long) ipr_cmd;
7111 ipr_cmd->timer.expires = jiffies + timeout;
7112 ipr_cmd->timer.function = (void (*)(unsigned long))ipr_reset_timer_done;
7113 add_timer(&ipr_cmd->timer);
7117 * ipr_init_ioa_mem - Initialize ioa_cfg control block
7118 * @ioa_cfg: ioa cfg struct
7123 static void ipr_init_ioa_mem(struct ipr_ioa_cfg *ioa_cfg)
7125 memset(ioa_cfg->host_rrq, 0, sizeof(u32) * IPR_NUM_CMD_BLKS);
7127 /* Initialize Host RRQ pointers */
7128 ioa_cfg->hrrq_start = ioa_cfg->host_rrq;
7129 ioa_cfg->hrrq_end = &ioa_cfg->host_rrq[IPR_NUM_CMD_BLKS - 1];
7130 ioa_cfg->hrrq_curr = ioa_cfg->hrrq_start;
7131 ioa_cfg->toggle_bit = 1;
7133 /* Zero out config table */
7134 memset(ioa_cfg->u.cfg_table, 0, ioa_cfg->cfg_table_size);
7138 * ipr_reset_next_stage - Process IPL stage change based on feedback register.
7139 * @ipr_cmd: ipr command struct
7142 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
7144 static int ipr_reset_next_stage(struct ipr_cmnd *ipr_cmd)
7146 unsigned long stage, stage_time;
7148 volatile u32 int_reg;
7149 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7152 feedback = readl(ioa_cfg->regs.init_feedback_reg);
7153 stage = feedback & IPR_IPL_INIT_STAGE_MASK;
7154 stage_time = feedback & IPR_IPL_INIT_STAGE_TIME_MASK;
7156 ipr_dbg("IPL stage = 0x%lx, IPL stage time = %ld\n", stage, stage_time);
7158 /* sanity check the stage_time value */
7159 if (stage_time == 0)
7160 stage_time = IPR_IPL_INIT_DEFAULT_STAGE_TIME;
7161 else if (stage_time < IPR_IPL_INIT_MIN_STAGE_TIME)
7162 stage_time = IPR_IPL_INIT_MIN_STAGE_TIME;
7163 else if (stage_time > IPR_LONG_OPERATIONAL_TIMEOUT)
7164 stage_time = IPR_LONG_OPERATIONAL_TIMEOUT;
7166 if (stage == IPR_IPL_INIT_STAGE_UNKNOWN) {
7167 writel(IPR_PCII_IPL_STAGE_CHANGE, ioa_cfg->regs.set_interrupt_mask_reg);
7168 int_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg);
7169 stage_time = ioa_cfg->transop_timeout;
7170 ipr_cmd->job_step = ipr_ioafp_identify_hrrq;
7171 } else if (stage == IPR_IPL_INIT_STAGE_TRANSOP) {
7172 ipr_cmd->job_step = ipr_ioafp_identify_hrrq;
7173 maskval = IPR_PCII_IPL_STAGE_CHANGE;
7174 maskval = (maskval << 32) | IPR_PCII_IOA_TRANS_TO_OPER;
7175 writeq(maskval, ioa_cfg->regs.set_interrupt_mask_reg);
7176 int_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg);
7177 return IPR_RC_JOB_CONTINUE;
7180 ipr_cmd->timer.data = (unsigned long) ipr_cmd;
7181 ipr_cmd->timer.expires = jiffies + stage_time * HZ;
7182 ipr_cmd->timer.function = (void (*)(unsigned long))ipr_oper_timeout;
7183 ipr_cmd->done = ipr_reset_ioa_job;
7184 add_timer(&ipr_cmd->timer);
7185 list_add_tail(&ipr_cmd->queue, &ioa_cfg->pending_q);
7187 return IPR_RC_JOB_RETURN;
7191 * ipr_reset_enable_ioa - Enable the IOA following a reset.
7192 * @ipr_cmd: ipr command struct
7194 * This function reinitializes some control blocks and
7195 * enables destructive diagnostics on the adapter.
7200 static int ipr_reset_enable_ioa(struct ipr_cmnd *ipr_cmd)
7202 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7203 volatile u32 int_reg;
7204 volatile u64 maskval;
7207 ipr_cmd->job_step = ipr_ioafp_identify_hrrq;
7208 ipr_init_ioa_mem(ioa_cfg);
7210 ioa_cfg->allow_interrupts = 1;
7211 if (ioa_cfg->sis64) {
7212 /* Set the adapter to the correct endian mode. */
7213 writel(IPR_ENDIAN_SWAP_KEY, ioa_cfg->regs.endian_swap_reg);
7214 int_reg = readl(ioa_cfg->regs.endian_swap_reg);
7217 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg32);
7219 if (int_reg & IPR_PCII_IOA_TRANS_TO_OPER) {
7220 writel((IPR_PCII_ERROR_INTERRUPTS | IPR_PCII_HRRQ_UPDATED),
7221 ioa_cfg->regs.clr_interrupt_mask_reg32);
7222 int_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg);
7223 return IPR_RC_JOB_CONTINUE;
7226 /* Enable destructive diagnostics on IOA */
7227 writel(ioa_cfg->doorbell, ioa_cfg->regs.set_uproc_interrupt_reg32);
7229 if (ioa_cfg->sis64) {
7230 maskval = IPR_PCII_IPL_STAGE_CHANGE;
7231 maskval = (maskval << 32) | IPR_PCII_OPER_INTERRUPTS;
7232 writeq(maskval, ioa_cfg->regs.clr_interrupt_mask_reg);
7234 writel(IPR_PCII_OPER_INTERRUPTS, ioa_cfg->regs.clr_interrupt_mask_reg32);
7236 int_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg);
7238 dev_info(&ioa_cfg->pdev->dev, "Initializing IOA.\n");
7240 if (ioa_cfg->sis64) {
7241 ipr_cmd->job_step = ipr_reset_next_stage;
7242 return IPR_RC_JOB_CONTINUE;
7245 ipr_cmd->timer.data = (unsigned long) ipr_cmd;
7246 ipr_cmd->timer.expires = jiffies + (ioa_cfg->transop_timeout * HZ);
7247 ipr_cmd->timer.function = (void (*)(unsigned long))ipr_oper_timeout;
7248 ipr_cmd->done = ipr_reset_ioa_job;
7249 add_timer(&ipr_cmd->timer);
7250 list_add_tail(&ipr_cmd->queue, &ioa_cfg->pending_q);
7253 return IPR_RC_JOB_RETURN;
7257 * ipr_reset_wait_for_dump - Wait for a dump to timeout.
7258 * @ipr_cmd: ipr command struct
7260 * This function is invoked when an adapter dump has run out
7261 * of processing time.
7264 * IPR_RC_JOB_CONTINUE
7266 static int ipr_reset_wait_for_dump(struct ipr_cmnd *ipr_cmd)
7268 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7270 if (ioa_cfg->sdt_state == GET_DUMP)
7271 ioa_cfg->sdt_state = ABORT_DUMP;
7273 ipr_cmd->job_step = ipr_reset_alert;
7275 return IPR_RC_JOB_CONTINUE;
7279 * ipr_unit_check_no_data - Log a unit check/no data error log
7280 * @ioa_cfg: ioa config struct
7282 * Logs an error indicating the adapter unit checked, but for some
7283 * reason, we were unable to fetch the unit check buffer.
7288 static void ipr_unit_check_no_data(struct ipr_ioa_cfg *ioa_cfg)
7290 ioa_cfg->errors_logged++;
7291 dev_err(&ioa_cfg->pdev->dev, "IOA unit check with no data\n");
7295 * ipr_get_unit_check_buffer - Get the unit check buffer from the IOA
7296 * @ioa_cfg: ioa config struct
7298 * Fetches the unit check buffer from the adapter by clocking the data
7299 * through the mailbox register.
7304 static void ipr_get_unit_check_buffer(struct ipr_ioa_cfg *ioa_cfg)
7306 unsigned long mailbox;
7307 struct ipr_hostrcb *hostrcb;
7308 struct ipr_uc_sdt sdt;
7312 mailbox = readl(ioa_cfg->ioa_mailbox);
7314 if (!ioa_cfg->sis64 && !ipr_sdt_is_fmt2(mailbox)) {
7315 ipr_unit_check_no_data(ioa_cfg);
7319 memset(&sdt, 0, sizeof(struct ipr_uc_sdt));
7320 rc = ipr_get_ldump_data_section(ioa_cfg, mailbox, (__be32 *) &sdt,
7321 (sizeof(struct ipr_uc_sdt)) / sizeof(__be32));
7323 if (rc || !(sdt.entry[0].flags & IPR_SDT_VALID_ENTRY) ||
7324 ((be32_to_cpu(sdt.hdr.state) != IPR_FMT3_SDT_READY_TO_USE) &&
7325 (be32_to_cpu(sdt.hdr.state) != IPR_FMT2_SDT_READY_TO_USE))) {
7326 ipr_unit_check_no_data(ioa_cfg);
7330 /* Find length of the first sdt entry (UC buffer) */
7331 if (be32_to_cpu(sdt.hdr.state) == IPR_FMT3_SDT_READY_TO_USE)
7332 length = be32_to_cpu(sdt.entry[0].end_token);
7334 length = (be32_to_cpu(sdt.entry[0].end_token) -
7335 be32_to_cpu(sdt.entry[0].start_token)) &
7336 IPR_FMT2_MBX_ADDR_MASK;
7338 hostrcb = list_entry(ioa_cfg->hostrcb_free_q.next,
7339 struct ipr_hostrcb, queue);
7340 list_del(&hostrcb->queue);
7341 memset(&hostrcb->hcam, 0, sizeof(hostrcb->hcam));
7343 rc = ipr_get_ldump_data_section(ioa_cfg,
7344 be32_to_cpu(sdt.entry[0].start_token),
7345 (__be32 *)&hostrcb->hcam,
7346 min(length, (int)sizeof(hostrcb->hcam)) / sizeof(__be32));
7349 ipr_handle_log_data(ioa_cfg, hostrcb);
7350 ioasc = be32_to_cpu(hostrcb->hcam.u.error.fd_ioasc);
7351 if (ioasc == IPR_IOASC_NR_IOA_RESET_REQUIRED &&
7352 ioa_cfg->sdt_state == GET_DUMP)
7353 ioa_cfg->sdt_state = WAIT_FOR_DUMP;
7355 ipr_unit_check_no_data(ioa_cfg);
7357 list_add_tail(&hostrcb->queue, &ioa_cfg->hostrcb_free_q);
7361 * ipr_reset_restore_cfg_space - Restore PCI config space.
7362 * @ipr_cmd: ipr command struct
7364 * Description: This function restores the saved PCI config space of
7365 * the adapter, fails all outstanding ops back to the callers, and
7366 * fetches the dump/unit check if applicable to this reset.
7369 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
7371 static int ipr_reset_restore_cfg_space(struct ipr_cmnd *ipr_cmd)
7373 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7374 volatile u32 int_reg;
7378 ioa_cfg->pdev->state_saved = true;
7379 rc = pci_restore_state(ioa_cfg->pdev);
7381 if (rc != PCIBIOS_SUCCESSFUL) {
7382 ipr_cmd->s.ioasa.hdr.ioasc = cpu_to_be32(IPR_IOASC_PCI_ACCESS_ERROR);
7383 return IPR_RC_JOB_CONTINUE;
7386 if (ipr_set_pcix_cmd_reg(ioa_cfg)) {
7387 ipr_cmd->s.ioasa.hdr.ioasc = cpu_to_be32(IPR_IOASC_PCI_ACCESS_ERROR);
7388 return IPR_RC_JOB_CONTINUE;
7391 ipr_fail_all_ops(ioa_cfg);
7393 if (ioa_cfg->sis64) {
7394 /* Set the adapter to the correct endian mode. */
7395 writel(IPR_ENDIAN_SWAP_KEY, ioa_cfg->regs.endian_swap_reg);
7396 int_reg = readl(ioa_cfg->regs.endian_swap_reg);
7399 if (ioa_cfg->ioa_unit_checked) {
7400 ioa_cfg->ioa_unit_checked = 0;
7401 ipr_get_unit_check_buffer(ioa_cfg);
7402 ipr_cmd->job_step = ipr_reset_alert;
7403 ipr_reset_start_timer(ipr_cmd, 0);
7404 return IPR_RC_JOB_RETURN;
7407 if (ioa_cfg->in_ioa_bringdown) {
7408 ipr_cmd->job_step = ipr_ioa_bringdown_done;
7410 ipr_cmd->job_step = ipr_reset_enable_ioa;
7412 if (GET_DUMP == ioa_cfg->sdt_state) {
7413 ipr_reset_start_timer(ipr_cmd, IPR_DUMP_TIMEOUT);
7414 ipr_cmd->job_step = ipr_reset_wait_for_dump;
7415 schedule_work(&ioa_cfg->work_q);
7416 return IPR_RC_JOB_RETURN;
7421 return IPR_RC_JOB_CONTINUE;
7425 * ipr_reset_bist_done - BIST has completed on the adapter.
7426 * @ipr_cmd: ipr command struct
7428 * Description: Unblock config space and resume the reset process.
7431 * IPR_RC_JOB_CONTINUE
7433 static int ipr_reset_bist_done(struct ipr_cmnd *ipr_cmd)
7436 pci_unblock_user_cfg_access(ipr_cmd->ioa_cfg->pdev);
7437 ipr_cmd->job_step = ipr_reset_restore_cfg_space;
7439 return IPR_RC_JOB_CONTINUE;
7443 * ipr_reset_start_bist - Run BIST on the adapter.
7444 * @ipr_cmd: ipr command struct
7446 * Description: This function runs BIST on the adapter, then delays 2 seconds.
7449 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
7451 static int ipr_reset_start_bist(struct ipr_cmnd *ipr_cmd)
7453 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7454 int rc = PCIBIOS_SUCCESSFUL;
7457 pci_block_user_cfg_access(ioa_cfg->pdev);
7459 if (ioa_cfg->ipr_chip->bist_method == IPR_MMIO)
7460 writel(IPR_UPROCI_SIS64_START_BIST,
7461 ioa_cfg->regs.set_uproc_interrupt_reg32);
7463 rc = pci_write_config_byte(ioa_cfg->pdev, PCI_BIST, PCI_BIST_START);
7465 if (rc == PCIBIOS_SUCCESSFUL) {
7466 ipr_cmd->job_step = ipr_reset_bist_done;
7467 ipr_reset_start_timer(ipr_cmd, IPR_WAIT_FOR_BIST_TIMEOUT);
7468 rc = IPR_RC_JOB_RETURN;
7470 pci_unblock_user_cfg_access(ipr_cmd->ioa_cfg->pdev);
7471 ipr_cmd->s.ioasa.hdr.ioasc = cpu_to_be32(IPR_IOASC_PCI_ACCESS_ERROR);
7472 rc = IPR_RC_JOB_CONTINUE;
7480 * ipr_reset_slot_reset_done - Clear PCI reset to the adapter
7481 * @ipr_cmd: ipr command struct
7483 * Description: This clears PCI reset to the adapter and delays two seconds.
7488 static int ipr_reset_slot_reset_done(struct ipr_cmnd *ipr_cmd)
7491 pci_set_pcie_reset_state(ipr_cmd->ioa_cfg->pdev, pcie_deassert_reset);
7492 ipr_cmd->job_step = ipr_reset_bist_done;
7493 ipr_reset_start_timer(ipr_cmd, IPR_WAIT_FOR_BIST_TIMEOUT);
7495 return IPR_RC_JOB_RETURN;
7499 * ipr_reset_slot_reset - Reset the PCI slot of the adapter.
7500 * @ipr_cmd: ipr command struct
7502 * Description: This asserts PCI reset to the adapter.
7507 static int ipr_reset_slot_reset(struct ipr_cmnd *ipr_cmd)
7509 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7510 struct pci_dev *pdev = ioa_cfg->pdev;
7513 pci_block_user_cfg_access(pdev);
7514 pci_set_pcie_reset_state(pdev, pcie_warm_reset);
7515 ipr_cmd->job_step = ipr_reset_slot_reset_done;
7516 ipr_reset_start_timer(ipr_cmd, IPR_PCI_RESET_TIMEOUT);
7518 return IPR_RC_JOB_RETURN;
7522 * ipr_reset_allowed - Query whether or not IOA can be reset
7523 * @ioa_cfg: ioa config struct
7526 * 0 if reset not allowed / non-zero if reset is allowed
7528 static int ipr_reset_allowed(struct ipr_ioa_cfg *ioa_cfg)
7530 volatile u32 temp_reg;
7532 temp_reg = readl(ioa_cfg->regs.sense_interrupt_reg);
7533 return ((temp_reg & IPR_PCII_CRITICAL_OPERATION) == 0);
7537 * ipr_reset_wait_to_start_bist - Wait for permission to reset IOA.
7538 * @ipr_cmd: ipr command struct
7540 * Description: This function waits for adapter permission to run BIST,
7541 * then runs BIST. If the adapter does not give permission after a
7542 * reasonable time, we will reset the adapter anyway. The impact of
7543 * resetting the adapter without warning the adapter is the risk of
7544 * losing the persistent error log on the adapter. If the adapter is
7545 * reset while it is writing to the flash on the adapter, the flash
7546 * segment will have bad ECC and be zeroed.
7549 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
7551 static int ipr_reset_wait_to_start_bist(struct ipr_cmnd *ipr_cmd)
7553 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7554 int rc = IPR_RC_JOB_RETURN;
7556 if (!ipr_reset_allowed(ioa_cfg) && ipr_cmd->u.time_left) {
7557 ipr_cmd->u.time_left -= IPR_CHECK_FOR_RESET_TIMEOUT;
7558 ipr_reset_start_timer(ipr_cmd, IPR_CHECK_FOR_RESET_TIMEOUT);
7560 ipr_cmd->job_step = ioa_cfg->reset;
7561 rc = IPR_RC_JOB_CONTINUE;
7568 * ipr_reset_alert - Alert the adapter of a pending reset
7569 * @ipr_cmd: ipr command struct
7571 * Description: This function alerts the adapter that it will be reset.
7572 * If memory space is not currently enabled, proceed directly
7573 * to running BIST on the adapter. The timer must always be started
7574 * so we guarantee we do not run BIST from ipr_isr.
7579 static int ipr_reset_alert(struct ipr_cmnd *ipr_cmd)
7581 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7586 rc = pci_read_config_word(ioa_cfg->pdev, PCI_COMMAND, &cmd_reg);
7588 if ((rc == PCIBIOS_SUCCESSFUL) && (cmd_reg & PCI_COMMAND_MEMORY)) {
7589 ipr_mask_and_clear_interrupts(ioa_cfg, ~0);
7590 writel(IPR_UPROCI_RESET_ALERT, ioa_cfg->regs.set_uproc_interrupt_reg32);
7591 ipr_cmd->job_step = ipr_reset_wait_to_start_bist;
7593 ipr_cmd->job_step = ioa_cfg->reset;
7596 ipr_cmd->u.time_left = IPR_WAIT_FOR_RESET_TIMEOUT;
7597 ipr_reset_start_timer(ipr_cmd, IPR_CHECK_FOR_RESET_TIMEOUT);
7600 return IPR_RC_JOB_RETURN;
7604 * ipr_reset_ucode_download_done - Microcode download completion
7605 * @ipr_cmd: ipr command struct
7607 * Description: This function unmaps the microcode download buffer.
7610 * IPR_RC_JOB_CONTINUE
7612 static int ipr_reset_ucode_download_done(struct ipr_cmnd *ipr_cmd)
7614 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7615 struct ipr_sglist *sglist = ioa_cfg->ucode_sglist;
7617 pci_unmap_sg(ioa_cfg->pdev, sglist->scatterlist,
7618 sglist->num_sg, DMA_TO_DEVICE);
7620 ipr_cmd->job_step = ipr_reset_alert;
7621 return IPR_RC_JOB_CONTINUE;
7625 * ipr_reset_ucode_download - Download microcode to the adapter
7626 * @ipr_cmd: ipr command struct
7628 * Description: This function checks to see if it there is microcode
7629 * to download to the adapter. If there is, a download is performed.
7632 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
7634 static int ipr_reset_ucode_download(struct ipr_cmnd *ipr_cmd)
7636 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7637 struct ipr_sglist *sglist = ioa_cfg->ucode_sglist;
7640 ipr_cmd->job_step = ipr_reset_alert;
7643 return IPR_RC_JOB_CONTINUE;
7645 ipr_cmd->ioarcb.res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE);
7646 ipr_cmd->ioarcb.cmd_pkt.request_type = IPR_RQTYPE_SCSICDB;
7647 ipr_cmd->ioarcb.cmd_pkt.cdb[0] = WRITE_BUFFER;
7648 ipr_cmd->ioarcb.cmd_pkt.cdb[1] = IPR_WR_BUF_DOWNLOAD_AND_SAVE;
7649 ipr_cmd->ioarcb.cmd_pkt.cdb[6] = (sglist->buffer_len & 0xff0000) >> 16;
7650 ipr_cmd->ioarcb.cmd_pkt.cdb[7] = (sglist->buffer_len & 0x00ff00) >> 8;
7651 ipr_cmd->ioarcb.cmd_pkt.cdb[8] = sglist->buffer_len & 0x0000ff;
7654 ipr_build_ucode_ioadl64(ipr_cmd, sglist);
7656 ipr_build_ucode_ioadl(ipr_cmd, sglist);
7657 ipr_cmd->job_step = ipr_reset_ucode_download_done;
7659 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout,
7660 IPR_WRITE_BUFFER_TIMEOUT);
7663 return IPR_RC_JOB_RETURN;
7667 * ipr_reset_shutdown_ioa - Shutdown the adapter
7668 * @ipr_cmd: ipr command struct
7670 * Description: This function issues an adapter shutdown of the
7671 * specified type to the specified adapter as part of the
7672 * adapter reset job.
7675 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
7677 static int ipr_reset_shutdown_ioa(struct ipr_cmnd *ipr_cmd)
7679 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7680 enum ipr_shutdown_type shutdown_type = ipr_cmd->u.shutdown_type;
7681 unsigned long timeout;
7682 int rc = IPR_RC_JOB_CONTINUE;
7685 if (shutdown_type != IPR_SHUTDOWN_NONE && !ioa_cfg->ioa_is_dead) {
7686 ipr_cmd->ioarcb.res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE);
7687 ipr_cmd->ioarcb.cmd_pkt.request_type = IPR_RQTYPE_IOACMD;
7688 ipr_cmd->ioarcb.cmd_pkt.cdb[0] = IPR_IOA_SHUTDOWN;
7689 ipr_cmd->ioarcb.cmd_pkt.cdb[1] = shutdown_type;
7691 if (shutdown_type == IPR_SHUTDOWN_NORMAL)
7692 timeout = IPR_SHUTDOWN_TIMEOUT;
7693 else if (shutdown_type == IPR_SHUTDOWN_PREPARE_FOR_NORMAL)
7694 timeout = IPR_INTERNAL_TIMEOUT;
7695 else if (ioa_cfg->dual_raid && ipr_dual_ioa_raid)
7696 timeout = IPR_DUAL_IOA_ABBR_SHUTDOWN_TO;
7698 timeout = IPR_ABBREV_SHUTDOWN_TIMEOUT;
7700 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, timeout);
7702 rc = IPR_RC_JOB_RETURN;
7703 ipr_cmd->job_step = ipr_reset_ucode_download;
7705 ipr_cmd->job_step = ipr_reset_alert;
7712 * ipr_reset_ioa_job - Adapter reset job
7713 * @ipr_cmd: ipr command struct
7715 * Description: This function is the job router for the adapter reset job.
7720 static void ipr_reset_ioa_job(struct ipr_cmnd *ipr_cmd)
7723 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7726 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
7728 if (ioa_cfg->reset_cmd != ipr_cmd) {
7730 * We are doing nested adapter resets and this is
7731 * not the current reset job.
7733 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
7737 if (IPR_IOASC_SENSE_KEY(ioasc)) {
7738 rc = ipr_cmd->job_step_failed(ipr_cmd);
7739 if (rc == IPR_RC_JOB_RETURN)
7743 ipr_reinit_ipr_cmnd(ipr_cmd);
7744 ipr_cmd->job_step_failed = ipr_reset_cmd_failed;
7745 rc = ipr_cmd->job_step(ipr_cmd);
7746 } while(rc == IPR_RC_JOB_CONTINUE);
7750 * _ipr_initiate_ioa_reset - Initiate an adapter reset
7751 * @ioa_cfg: ioa config struct
7752 * @job_step: first job step of reset job
7753 * @shutdown_type: shutdown type
7755 * Description: This function will initiate the reset of the given adapter
7756 * starting at the selected job step.
7757 * If the caller needs to wait on the completion of the reset,
7758 * the caller must sleep on the reset_wait_q.
7763 static void _ipr_initiate_ioa_reset(struct ipr_ioa_cfg *ioa_cfg,
7764 int (*job_step) (struct ipr_cmnd *),
7765 enum ipr_shutdown_type shutdown_type)
7767 struct ipr_cmnd *ipr_cmd;
7769 ioa_cfg->in_reset_reload = 1;
7770 ioa_cfg->allow_cmds = 0;
7771 scsi_block_requests(ioa_cfg->host);
7773 ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg);
7774 ioa_cfg->reset_cmd = ipr_cmd;
7775 ipr_cmd->job_step = job_step;
7776 ipr_cmd->u.shutdown_type = shutdown_type;
7778 ipr_reset_ioa_job(ipr_cmd);
7782 * ipr_initiate_ioa_reset - Initiate an adapter reset
7783 * @ioa_cfg: ioa config struct
7784 * @shutdown_type: shutdown type
7786 * Description: This function will initiate the reset of the given adapter.
7787 * If the caller needs to wait on the completion of the reset,
7788 * the caller must sleep on the reset_wait_q.
7793 static void ipr_initiate_ioa_reset(struct ipr_ioa_cfg *ioa_cfg,
7794 enum ipr_shutdown_type shutdown_type)
7796 if (ioa_cfg->ioa_is_dead)
7799 if (ioa_cfg->in_reset_reload && ioa_cfg->sdt_state == GET_DUMP)
7800 ioa_cfg->sdt_state = ABORT_DUMP;
7802 if (ioa_cfg->reset_retries++ >= IPR_NUM_RESET_RELOAD_RETRIES) {
7803 dev_err(&ioa_cfg->pdev->dev,
7804 "IOA taken offline - error recovery failed\n");
7806 ioa_cfg->reset_retries = 0;
7807 ioa_cfg->ioa_is_dead = 1;
7809 if (ioa_cfg->in_ioa_bringdown) {
7810 ioa_cfg->reset_cmd = NULL;
7811 ioa_cfg->in_reset_reload = 0;
7812 ipr_fail_all_ops(ioa_cfg);
7813 wake_up_all(&ioa_cfg->reset_wait_q);
7815 spin_unlock_irq(ioa_cfg->host->host_lock);
7816 scsi_unblock_requests(ioa_cfg->host);
7817 spin_lock_irq(ioa_cfg->host->host_lock);
7820 ioa_cfg->in_ioa_bringdown = 1;
7821 shutdown_type = IPR_SHUTDOWN_NONE;
7825 _ipr_initiate_ioa_reset(ioa_cfg, ipr_reset_shutdown_ioa,
7830 * ipr_reset_freeze - Hold off all I/O activity
7831 * @ipr_cmd: ipr command struct
7833 * Description: If the PCI slot is frozen, hold off all I/O
7834 * activity; then, as soon as the slot is available again,
7835 * initiate an adapter reset.
7837 static int ipr_reset_freeze(struct ipr_cmnd *ipr_cmd)
7839 /* Disallow new interrupts, avoid loop */
7840 ipr_cmd->ioa_cfg->allow_interrupts = 0;
7841 list_add_tail(&ipr_cmd->queue, &ipr_cmd->ioa_cfg->pending_q);
7842 ipr_cmd->done = ipr_reset_ioa_job;
7843 return IPR_RC_JOB_RETURN;
7847 * ipr_pci_frozen - Called when slot has experienced a PCI bus error.
7848 * @pdev: PCI device struct
7850 * Description: This routine is called to tell us that the PCI bus
7851 * is down. Can't do anything here, except put the device driver
7852 * into a holding pattern, waiting for the PCI bus to come back.
7854 static void ipr_pci_frozen(struct pci_dev *pdev)
7856 unsigned long flags = 0;
7857 struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev);
7859 spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
7860 _ipr_initiate_ioa_reset(ioa_cfg, ipr_reset_freeze, IPR_SHUTDOWN_NONE);
7861 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
7865 * ipr_pci_slot_reset - Called when PCI slot has been reset.
7866 * @pdev: PCI device struct
7868 * Description: This routine is called by the pci error recovery
7869 * code after the PCI slot has been reset, just before we
7870 * should resume normal operations.
7872 static pci_ers_result_t ipr_pci_slot_reset(struct pci_dev *pdev)
7874 unsigned long flags = 0;
7875 struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev);
7877 spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
7878 if (ioa_cfg->needs_warm_reset)
7879 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
7881 _ipr_initiate_ioa_reset(ioa_cfg, ipr_reset_restore_cfg_space,
7883 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
7884 return PCI_ERS_RESULT_RECOVERED;
7888 * ipr_pci_perm_failure - Called when PCI slot is dead for good.
7889 * @pdev: PCI device struct
7891 * Description: This routine is called when the PCI bus has
7892 * permanently failed.
7894 static void ipr_pci_perm_failure(struct pci_dev *pdev)
7896 unsigned long flags = 0;
7897 struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev);
7899 spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
7900 if (ioa_cfg->sdt_state == WAIT_FOR_DUMP)
7901 ioa_cfg->sdt_state = ABORT_DUMP;
7902 ioa_cfg->reset_retries = IPR_NUM_RESET_RELOAD_RETRIES;
7903 ioa_cfg->in_ioa_bringdown = 1;
7904 ioa_cfg->allow_cmds = 0;
7905 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
7906 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
7910 * ipr_pci_error_detected - Called when a PCI error is detected.
7911 * @pdev: PCI device struct
7912 * @state: PCI channel state
7914 * Description: Called when a PCI error is detected.
7917 * PCI_ERS_RESULT_NEED_RESET or PCI_ERS_RESULT_DISCONNECT
7919 static pci_ers_result_t ipr_pci_error_detected(struct pci_dev *pdev,
7920 pci_channel_state_t state)
7923 case pci_channel_io_frozen:
7924 ipr_pci_frozen(pdev);
7925 return PCI_ERS_RESULT_NEED_RESET;
7926 case pci_channel_io_perm_failure:
7927 ipr_pci_perm_failure(pdev);
7928 return PCI_ERS_RESULT_DISCONNECT;
7933 return PCI_ERS_RESULT_NEED_RESET;
7937 * ipr_probe_ioa_part2 - Initializes IOAs found in ipr_probe_ioa(..)
7938 * @ioa_cfg: ioa cfg struct
7940 * Description: This is the second phase of adapter intialization
7941 * This function takes care of initilizing the adapter to the point
7942 * where it can accept new commands.
7945 * 0 on success / -EIO on failure
7947 static int __devinit ipr_probe_ioa_part2(struct ipr_ioa_cfg *ioa_cfg)
7950 unsigned long host_lock_flags = 0;
7953 spin_lock_irqsave(ioa_cfg->host->host_lock, host_lock_flags);
7954 dev_dbg(&ioa_cfg->pdev->dev, "ioa_cfg adx: 0x%p\n", ioa_cfg);
7955 if (ioa_cfg->needs_hard_reset) {
7956 ioa_cfg->needs_hard_reset = 0;
7957 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
7959 _ipr_initiate_ioa_reset(ioa_cfg, ipr_reset_enable_ioa,
7962 spin_unlock_irqrestore(ioa_cfg->host->host_lock, host_lock_flags);
7963 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
7964 spin_lock_irqsave(ioa_cfg->host->host_lock, host_lock_flags);
7966 if (ioa_cfg->ioa_is_dead) {
7968 } else if (ipr_invalid_adapter(ioa_cfg)) {
7972 dev_err(&ioa_cfg->pdev->dev,
7973 "Adapter not supported in this hardware configuration.\n");
7976 spin_unlock_irqrestore(ioa_cfg->host->host_lock, host_lock_flags);
7983 * ipr_free_cmd_blks - Frees command blocks allocated for an adapter
7984 * @ioa_cfg: ioa config struct
7989 static void ipr_free_cmd_blks(struct ipr_ioa_cfg *ioa_cfg)
7993 for (i = 0; i < IPR_NUM_CMD_BLKS; i++) {
7994 if (ioa_cfg->ipr_cmnd_list[i])
7995 pci_pool_free(ioa_cfg->ipr_cmd_pool,
7996 ioa_cfg->ipr_cmnd_list[i],
7997 ioa_cfg->ipr_cmnd_list_dma[i]);
7999 ioa_cfg->ipr_cmnd_list[i] = NULL;
8002 if (ioa_cfg->ipr_cmd_pool)
8003 pci_pool_destroy (ioa_cfg->ipr_cmd_pool);
8005 ioa_cfg->ipr_cmd_pool = NULL;
8009 * ipr_free_mem - Frees memory allocated for an adapter
8010 * @ioa_cfg: ioa cfg struct
8015 static void ipr_free_mem(struct ipr_ioa_cfg *ioa_cfg)
8019 kfree(ioa_cfg->res_entries);
8020 pci_free_consistent(ioa_cfg->pdev, sizeof(struct ipr_misc_cbs),
8021 ioa_cfg->vpd_cbs, ioa_cfg->vpd_cbs_dma);
8022 ipr_free_cmd_blks(ioa_cfg);
8023 pci_free_consistent(ioa_cfg->pdev, sizeof(u32) * IPR_NUM_CMD_BLKS,
8024 ioa_cfg->host_rrq, ioa_cfg->host_rrq_dma);
8025 pci_free_consistent(ioa_cfg->pdev, ioa_cfg->cfg_table_size,
8026 ioa_cfg->u.cfg_table,
8027 ioa_cfg->cfg_table_dma);
8029 for (i = 0; i < IPR_NUM_HCAMS; i++) {
8030 pci_free_consistent(ioa_cfg->pdev,
8031 sizeof(struct ipr_hostrcb),
8032 ioa_cfg->hostrcb[i],
8033 ioa_cfg->hostrcb_dma[i]);
8036 ipr_free_dump(ioa_cfg);
8037 kfree(ioa_cfg->trace);
8041 * ipr_free_all_resources - Free all allocated resources for an adapter.
8042 * @ipr_cmd: ipr command struct
8044 * This function frees all allocated resources for the
8045 * specified adapter.
8050 static void ipr_free_all_resources(struct ipr_ioa_cfg *ioa_cfg)
8052 struct pci_dev *pdev = ioa_cfg->pdev;
8055 free_irq(pdev->irq, ioa_cfg);
8056 pci_disable_msi(pdev);
8057 iounmap(ioa_cfg->hdw_dma_regs);
8058 pci_release_regions(pdev);
8059 ipr_free_mem(ioa_cfg);
8060 scsi_host_put(ioa_cfg->host);
8061 pci_disable_device(pdev);
8066 * ipr_alloc_cmd_blks - Allocate command blocks for an adapter
8067 * @ioa_cfg: ioa config struct
8070 * 0 on success / -ENOMEM on allocation failure
8072 static int __devinit ipr_alloc_cmd_blks(struct ipr_ioa_cfg *ioa_cfg)
8074 struct ipr_cmnd *ipr_cmd;
8075 struct ipr_ioarcb *ioarcb;
8076 dma_addr_t dma_addr;
8079 ioa_cfg->ipr_cmd_pool = pci_pool_create (IPR_NAME, ioa_cfg->pdev,
8080 sizeof(struct ipr_cmnd), 16, 0);
8082 if (!ioa_cfg->ipr_cmd_pool)
8085 for (i = 0; i < IPR_NUM_CMD_BLKS; i++) {
8086 ipr_cmd = pci_pool_alloc (ioa_cfg->ipr_cmd_pool, GFP_KERNEL, &dma_addr);
8089 ipr_free_cmd_blks(ioa_cfg);
8093 memset(ipr_cmd, 0, sizeof(*ipr_cmd));
8094 ioa_cfg->ipr_cmnd_list[i] = ipr_cmd;
8095 ioa_cfg->ipr_cmnd_list_dma[i] = dma_addr;
8097 ioarcb = &ipr_cmd->ioarcb;
8098 ipr_cmd->dma_addr = dma_addr;
8100 ioarcb->a.ioarcb_host_pci_addr64 = cpu_to_be64(dma_addr);
8102 ioarcb->a.ioarcb_host_pci_addr = cpu_to_be32(dma_addr);
8104 ioarcb->host_response_handle = cpu_to_be32(i << 2);
8105 if (ioa_cfg->sis64) {
8106 ioarcb->u.sis64_addr_data.data_ioadl_addr =
8107 cpu_to_be64(dma_addr + offsetof(struct ipr_cmnd, i.ioadl64));
8108 ioarcb->u.sis64_addr_data.ioasa_host_pci_addr =
8109 cpu_to_be64(dma_addr + offsetof(struct ipr_cmnd, s.ioasa64));
8111 ioarcb->write_ioadl_addr =
8112 cpu_to_be32(dma_addr + offsetof(struct ipr_cmnd, i.ioadl));
8113 ioarcb->read_ioadl_addr = ioarcb->write_ioadl_addr;
8114 ioarcb->ioasa_host_pci_addr =
8115 cpu_to_be32(dma_addr + offsetof(struct ipr_cmnd, s.ioasa));
8117 ioarcb->ioasa_len = cpu_to_be16(sizeof(struct ipr_ioasa));
8118 ipr_cmd->cmd_index = i;
8119 ipr_cmd->ioa_cfg = ioa_cfg;
8120 ipr_cmd->sense_buffer_dma = dma_addr +
8121 offsetof(struct ipr_cmnd, sense_buffer);
8123 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
8130 * ipr_alloc_mem - Allocate memory for an adapter
8131 * @ioa_cfg: ioa config struct
8134 * 0 on success / non-zero for error
8136 static int __devinit ipr_alloc_mem(struct ipr_ioa_cfg *ioa_cfg)
8138 struct pci_dev *pdev = ioa_cfg->pdev;
8139 int i, rc = -ENOMEM;
8142 ioa_cfg->res_entries = kzalloc(sizeof(struct ipr_resource_entry) *
8143 ioa_cfg->max_devs_supported, GFP_KERNEL);
8145 if (!ioa_cfg->res_entries)
8148 if (ioa_cfg->sis64) {
8149 ioa_cfg->target_ids = kzalloc(sizeof(unsigned long) *
8150 BITS_TO_LONGS(ioa_cfg->max_devs_supported), GFP_KERNEL);
8151 ioa_cfg->array_ids = kzalloc(sizeof(unsigned long) *
8152 BITS_TO_LONGS(ioa_cfg->max_devs_supported), GFP_KERNEL);
8153 ioa_cfg->vset_ids = kzalloc(sizeof(unsigned long) *
8154 BITS_TO_LONGS(ioa_cfg->max_devs_supported), GFP_KERNEL);
8157 for (i = 0; i < ioa_cfg->max_devs_supported; i++) {
8158 list_add_tail(&ioa_cfg->res_entries[i].queue, &ioa_cfg->free_res_q);
8159 ioa_cfg->res_entries[i].ioa_cfg = ioa_cfg;
8162 ioa_cfg->vpd_cbs = pci_alloc_consistent(ioa_cfg->pdev,
8163 sizeof(struct ipr_misc_cbs),
8164 &ioa_cfg->vpd_cbs_dma);
8166 if (!ioa_cfg->vpd_cbs)
8167 goto out_free_res_entries;
8169 if (ipr_alloc_cmd_blks(ioa_cfg))
8170 goto out_free_vpd_cbs;
8172 ioa_cfg->host_rrq = pci_alloc_consistent(ioa_cfg->pdev,
8173 sizeof(u32) * IPR_NUM_CMD_BLKS,
8174 &ioa_cfg->host_rrq_dma);
8176 if (!ioa_cfg->host_rrq)
8177 goto out_ipr_free_cmd_blocks;
8179 ioa_cfg->u.cfg_table = pci_alloc_consistent(ioa_cfg->pdev,
8180 ioa_cfg->cfg_table_size,
8181 &ioa_cfg->cfg_table_dma);
8183 if (!ioa_cfg->u.cfg_table)
8184 goto out_free_host_rrq;
8186 for (i = 0; i < IPR_NUM_HCAMS; i++) {
8187 ioa_cfg->hostrcb[i] = pci_alloc_consistent(ioa_cfg->pdev,
8188 sizeof(struct ipr_hostrcb),
8189 &ioa_cfg->hostrcb_dma[i]);
8191 if (!ioa_cfg->hostrcb[i])
8192 goto out_free_hostrcb_dma;
8194 ioa_cfg->hostrcb[i]->hostrcb_dma =
8195 ioa_cfg->hostrcb_dma[i] + offsetof(struct ipr_hostrcb, hcam);
8196 ioa_cfg->hostrcb[i]->ioa_cfg = ioa_cfg;
8197 list_add_tail(&ioa_cfg->hostrcb[i]->queue, &ioa_cfg->hostrcb_free_q);
8200 ioa_cfg->trace = kzalloc(sizeof(struct ipr_trace_entry) *
8201 IPR_NUM_TRACE_ENTRIES, GFP_KERNEL);
8203 if (!ioa_cfg->trace)
8204 goto out_free_hostrcb_dma;
8211 out_free_hostrcb_dma:
8213 pci_free_consistent(pdev, sizeof(struct ipr_hostrcb),
8214 ioa_cfg->hostrcb[i],
8215 ioa_cfg->hostrcb_dma[i]);
8217 pci_free_consistent(pdev, ioa_cfg->cfg_table_size,
8218 ioa_cfg->u.cfg_table,
8219 ioa_cfg->cfg_table_dma);
8221 pci_free_consistent(pdev, sizeof(u32) * IPR_NUM_CMD_BLKS,
8222 ioa_cfg->host_rrq, ioa_cfg->host_rrq_dma);
8223 out_ipr_free_cmd_blocks:
8224 ipr_free_cmd_blks(ioa_cfg);
8226 pci_free_consistent(pdev, sizeof(struct ipr_misc_cbs),
8227 ioa_cfg->vpd_cbs, ioa_cfg->vpd_cbs_dma);
8228 out_free_res_entries:
8229 kfree(ioa_cfg->res_entries);
8234 * ipr_initialize_bus_attr - Initialize SCSI bus attributes to default values
8235 * @ioa_cfg: ioa config struct
8240 static void __devinit ipr_initialize_bus_attr(struct ipr_ioa_cfg *ioa_cfg)
8244 for (i = 0; i < IPR_MAX_NUM_BUSES; i++) {
8245 ioa_cfg->bus_attr[i].bus = i;
8246 ioa_cfg->bus_attr[i].qas_enabled = 0;
8247 ioa_cfg->bus_attr[i].bus_width = IPR_DEFAULT_BUS_WIDTH;
8248 if (ipr_max_speed < ARRAY_SIZE(ipr_max_bus_speeds))
8249 ioa_cfg->bus_attr[i].max_xfer_rate = ipr_max_bus_speeds[ipr_max_speed];
8251 ioa_cfg->bus_attr[i].max_xfer_rate = IPR_U160_SCSI_RATE;
8256 * ipr_init_ioa_cfg - Initialize IOA config struct
8257 * @ioa_cfg: ioa config struct
8258 * @host: scsi host struct
8259 * @pdev: PCI dev struct
8264 static void __devinit ipr_init_ioa_cfg(struct ipr_ioa_cfg *ioa_cfg,
8265 struct Scsi_Host *host, struct pci_dev *pdev)
8267 const struct ipr_interrupt_offsets *p;
8268 struct ipr_interrupts *t;
8271 ioa_cfg->host = host;
8272 ioa_cfg->pdev = pdev;
8273 ioa_cfg->log_level = ipr_log_level;
8274 ioa_cfg->doorbell = IPR_DOORBELL;
8275 sprintf(ioa_cfg->eye_catcher, IPR_EYECATCHER);
8276 sprintf(ioa_cfg->trace_start, IPR_TRACE_START_LABEL);
8277 sprintf(ioa_cfg->ipr_free_label, IPR_FREEQ_LABEL);
8278 sprintf(ioa_cfg->ipr_pending_label, IPR_PENDQ_LABEL);
8279 sprintf(ioa_cfg->cfg_table_start, IPR_CFG_TBL_START);
8280 sprintf(ioa_cfg->resource_table_label, IPR_RES_TABLE_LABEL);
8281 sprintf(ioa_cfg->ipr_hcam_label, IPR_HCAM_LABEL);
8282 sprintf(ioa_cfg->ipr_cmd_label, IPR_CMD_LABEL);
8284 INIT_LIST_HEAD(&ioa_cfg->free_q);
8285 INIT_LIST_HEAD(&ioa_cfg->pending_q);
8286 INIT_LIST_HEAD(&ioa_cfg->hostrcb_free_q);
8287 INIT_LIST_HEAD(&ioa_cfg->hostrcb_pending_q);
8288 INIT_LIST_HEAD(&ioa_cfg->free_res_q);
8289 INIT_LIST_HEAD(&ioa_cfg->used_res_q);
8290 INIT_WORK(&ioa_cfg->work_q, ipr_worker_thread);
8291 init_waitqueue_head(&ioa_cfg->reset_wait_q);
8292 init_waitqueue_head(&ioa_cfg->msi_wait_q);
8293 ioa_cfg->sdt_state = INACTIVE;
8295 ipr_initialize_bus_attr(ioa_cfg);
8296 ioa_cfg->max_devs_supported = ipr_max_devs;
8298 if (ioa_cfg->sis64) {
8299 host->max_id = IPR_MAX_SIS64_TARGETS_PER_BUS;
8300 host->max_lun = IPR_MAX_SIS64_LUNS_PER_TARGET;
8301 if (ipr_max_devs > IPR_MAX_SIS64_DEVS)
8302 ioa_cfg->max_devs_supported = IPR_MAX_SIS64_DEVS;
8304 host->max_id = IPR_MAX_NUM_TARGETS_PER_BUS;
8305 host->max_lun = IPR_MAX_NUM_LUNS_PER_TARGET;
8306 if (ipr_max_devs > IPR_MAX_PHYSICAL_DEVS)
8307 ioa_cfg->max_devs_supported = IPR_MAX_PHYSICAL_DEVS;
8309 host->max_channel = IPR_MAX_BUS_TO_SCAN;
8310 host->unique_id = host->host_no;
8311 host->max_cmd_len = IPR_MAX_CDB_LEN;
8312 pci_set_drvdata(pdev, ioa_cfg);
8314 p = &ioa_cfg->chip_cfg->regs;
8316 base = ioa_cfg->hdw_dma_regs;
8318 t->set_interrupt_mask_reg = base + p->set_interrupt_mask_reg;
8319 t->clr_interrupt_mask_reg = base + p->clr_interrupt_mask_reg;
8320 t->clr_interrupt_mask_reg32 = base + p->clr_interrupt_mask_reg32;
8321 t->sense_interrupt_mask_reg = base + p->sense_interrupt_mask_reg;
8322 t->sense_interrupt_mask_reg32 = base + p->sense_interrupt_mask_reg32;
8323 t->clr_interrupt_reg = base + p->clr_interrupt_reg;
8324 t->clr_interrupt_reg32 = base + p->clr_interrupt_reg32;
8325 t->sense_interrupt_reg = base + p->sense_interrupt_reg;
8326 t->sense_interrupt_reg32 = base + p->sense_interrupt_reg32;
8327 t->ioarrin_reg = base + p->ioarrin_reg;
8328 t->sense_uproc_interrupt_reg = base + p->sense_uproc_interrupt_reg;
8329 t->sense_uproc_interrupt_reg32 = base + p->sense_uproc_interrupt_reg32;
8330 t->set_uproc_interrupt_reg = base + p->set_uproc_interrupt_reg;
8331 t->set_uproc_interrupt_reg32 = base + p->set_uproc_interrupt_reg32;
8332 t->clr_uproc_interrupt_reg = base + p->clr_uproc_interrupt_reg;
8333 t->clr_uproc_interrupt_reg32 = base + p->clr_uproc_interrupt_reg32;
8335 if (ioa_cfg->sis64) {
8336 t->init_feedback_reg = base + p->init_feedback_reg;
8337 t->dump_addr_reg = base + p->dump_addr_reg;
8338 t->dump_data_reg = base + p->dump_data_reg;
8339 t->endian_swap_reg = base + p->endian_swap_reg;
8344 * ipr_get_chip_info - Find adapter chip information
8345 * @dev_id: PCI device id struct
8348 * ptr to chip information on success / NULL on failure
8350 static const struct ipr_chip_t * __devinit
8351 ipr_get_chip_info(const struct pci_device_id *dev_id)
8355 for (i = 0; i < ARRAY_SIZE(ipr_chip); i++)
8356 if (ipr_chip[i].vendor == dev_id->vendor &&
8357 ipr_chip[i].device == dev_id->device)
8358 return &ipr_chip[i];
8363 * ipr_test_intr - Handle the interrupt generated in ipr_test_msi().
8364 * @pdev: PCI device struct
8366 * Description: Simply set the msi_received flag to 1 indicating that
8367 * Message Signaled Interrupts are supported.
8370 * 0 on success / non-zero on failure
8372 static irqreturn_t __devinit ipr_test_intr(int irq, void *devp)
8374 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)devp;
8375 unsigned long lock_flags = 0;
8376 irqreturn_t rc = IRQ_HANDLED;
8378 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
8380 ioa_cfg->msi_received = 1;
8381 wake_up(&ioa_cfg->msi_wait_q);
8383 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
8388 * ipr_test_msi - Test for Message Signaled Interrupt (MSI) support.
8389 * @pdev: PCI device struct
8391 * Description: The return value from pci_enable_msi() can not always be
8392 * trusted. This routine sets up and initiates a test interrupt to determine
8393 * if the interrupt is received via the ipr_test_intr() service routine.
8394 * If the tests fails, the driver will fall back to LSI.
8397 * 0 on success / non-zero on failure
8399 static int __devinit ipr_test_msi(struct ipr_ioa_cfg *ioa_cfg,
8400 struct pci_dev *pdev)
8403 volatile u32 int_reg;
8404 unsigned long lock_flags = 0;
8408 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
8409 init_waitqueue_head(&ioa_cfg->msi_wait_q);
8410 ioa_cfg->msi_received = 0;
8411 ipr_mask_and_clear_interrupts(ioa_cfg, ~IPR_PCII_IOA_TRANS_TO_OPER);
8412 writel(IPR_PCII_IO_DEBUG_ACKNOWLEDGE, ioa_cfg->regs.clr_interrupt_mask_reg32);
8413 int_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg);
8414 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
8416 rc = request_irq(pdev->irq, ipr_test_intr, 0, IPR_NAME, ioa_cfg);
8418 dev_err(&pdev->dev, "Can not assign irq %d\n", pdev->irq);
8420 } else if (ipr_debug)
8421 dev_info(&pdev->dev, "IRQ assigned: %d\n", pdev->irq);
8423 writel(IPR_PCII_IO_DEBUG_ACKNOWLEDGE, ioa_cfg->regs.sense_interrupt_reg32);
8424 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg);
8425 wait_event_timeout(ioa_cfg->msi_wait_q, ioa_cfg->msi_received, HZ);
8426 ipr_mask_and_clear_interrupts(ioa_cfg, ~IPR_PCII_IOA_TRANS_TO_OPER);
8428 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
8429 if (!ioa_cfg->msi_received) {
8430 /* MSI test failed */
8431 dev_info(&pdev->dev, "MSI test failed. Falling back to LSI.\n");
8433 } else if (ipr_debug)
8434 dev_info(&pdev->dev, "MSI test succeeded.\n");
8436 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
8438 free_irq(pdev->irq, ioa_cfg);
8446 * ipr_probe_ioa - Allocates memory and does first stage of initialization
8447 * @pdev: PCI device struct
8448 * @dev_id: PCI device id struct
8451 * 0 on success / non-zero on failure
8453 static int __devinit ipr_probe_ioa(struct pci_dev *pdev,
8454 const struct pci_device_id *dev_id)
8456 struct ipr_ioa_cfg *ioa_cfg;
8457 struct Scsi_Host *host;
8458 unsigned long ipr_regs_pci;
8459 void __iomem *ipr_regs;
8460 int rc = PCIBIOS_SUCCESSFUL;
8461 volatile u32 mask, uproc, interrupts;
8465 if ((rc = pci_enable_device(pdev))) {
8466 dev_err(&pdev->dev, "Cannot enable adapter\n");
8470 dev_info(&pdev->dev, "Found IOA with IRQ: %d\n", pdev->irq);
8472 host = scsi_host_alloc(&driver_template, sizeof(*ioa_cfg));
8475 dev_err(&pdev->dev, "call to scsi_host_alloc failed!\n");
8480 ioa_cfg = (struct ipr_ioa_cfg *)host->hostdata;
8481 memset(ioa_cfg, 0, sizeof(struct ipr_ioa_cfg));
8482 ata_host_init(&ioa_cfg->ata_host, &pdev->dev,
8483 sata_port_info.flags, &ipr_sata_ops);
8485 ioa_cfg->ipr_chip = ipr_get_chip_info(dev_id);
8487 if (!ioa_cfg->ipr_chip) {
8488 dev_err(&pdev->dev, "Unknown adapter chipset 0x%04X 0x%04X\n",
8489 dev_id->vendor, dev_id->device);
8490 goto out_scsi_host_put;
8493 /* set SIS 32 or SIS 64 */
8494 ioa_cfg->sis64 = ioa_cfg->ipr_chip->sis_type == IPR_SIS64 ? 1 : 0;
8495 ioa_cfg->chip_cfg = ioa_cfg->ipr_chip->cfg;
8497 if (ipr_transop_timeout)
8498 ioa_cfg->transop_timeout = ipr_transop_timeout;
8499 else if (dev_id->driver_data & IPR_USE_LONG_TRANSOP_TIMEOUT)
8500 ioa_cfg->transop_timeout = IPR_LONG_OPERATIONAL_TIMEOUT;
8502 ioa_cfg->transop_timeout = IPR_OPERATIONAL_TIMEOUT;
8504 ioa_cfg->revid = pdev->revision;
8506 ipr_regs_pci = pci_resource_start(pdev, 0);
8508 rc = pci_request_regions(pdev, IPR_NAME);
8511 "Couldn't register memory range of registers\n");
8512 goto out_scsi_host_put;
8515 ipr_regs = pci_ioremap_bar(pdev, 0);
8519 "Couldn't map memory range of registers\n");
8521 goto out_release_regions;
8524 ioa_cfg->hdw_dma_regs = ipr_regs;
8525 ioa_cfg->hdw_dma_regs_pci = ipr_regs_pci;
8526 ioa_cfg->ioa_mailbox = ioa_cfg->chip_cfg->mailbox + ipr_regs;
8528 ipr_init_ioa_cfg(ioa_cfg, host, pdev);
8530 pci_set_master(pdev);
8532 if (ioa_cfg->sis64) {
8533 rc = pci_set_dma_mask(pdev, DMA_BIT_MASK(64));
8535 dev_dbg(&pdev->dev, "Failed to set 64 bit PCI DMA mask\n");
8536 rc = pci_set_dma_mask(pdev, DMA_BIT_MASK(32));
8540 rc = pci_set_dma_mask(pdev, DMA_BIT_MASK(32));
8543 dev_err(&pdev->dev, "Failed to set PCI DMA mask\n");
8547 rc = pci_write_config_byte(pdev, PCI_CACHE_LINE_SIZE,
8548 ioa_cfg->chip_cfg->cache_line_size);
8550 if (rc != PCIBIOS_SUCCESSFUL) {
8551 dev_err(&pdev->dev, "Write of cache line size failed\n");
8556 /* Enable MSI style interrupts if they are supported. */
8557 if (ioa_cfg->ipr_chip->intr_type == IPR_USE_MSI && !pci_enable_msi(pdev)) {
8558 rc = ipr_test_msi(ioa_cfg, pdev);
8559 if (rc == -EOPNOTSUPP)
8560 pci_disable_msi(pdev);
8562 goto out_msi_disable;
8564 dev_info(&pdev->dev, "MSI enabled with IRQ: %d\n", pdev->irq);
8565 } else if (ipr_debug)
8566 dev_info(&pdev->dev, "Cannot enable MSI.\n");
8568 /* Save away PCI config space for use following IOA reset */
8569 rc = pci_save_state(pdev);
8571 if (rc != PCIBIOS_SUCCESSFUL) {
8572 dev_err(&pdev->dev, "Failed to save PCI config space\n");
8577 if ((rc = ipr_save_pcix_cmd_reg(ioa_cfg)))
8580 if ((rc = ipr_set_pcix_cmd_reg(ioa_cfg)))
8584 ioa_cfg->cfg_table_size = (sizeof(struct ipr_config_table_hdr64)
8585 + ((sizeof(struct ipr_config_table_entry64)
8586 * ioa_cfg->max_devs_supported)));
8588 ioa_cfg->cfg_table_size = (sizeof(struct ipr_config_table_hdr)
8589 + ((sizeof(struct ipr_config_table_entry)
8590 * ioa_cfg->max_devs_supported)));
8592 rc = ipr_alloc_mem(ioa_cfg);
8595 "Couldn't allocate enough memory for device driver!\n");
8600 * If HRRQ updated interrupt is not masked, or reset alert is set,
8601 * the card is in an unknown state and needs a hard reset
8603 mask = readl(ioa_cfg->regs.sense_interrupt_mask_reg32);
8604 interrupts = readl(ioa_cfg->regs.sense_interrupt_reg32);
8605 uproc = readl(ioa_cfg->regs.sense_uproc_interrupt_reg32);
8606 if ((mask & IPR_PCII_HRRQ_UPDATED) == 0 || (uproc & IPR_UPROCI_RESET_ALERT))
8607 ioa_cfg->needs_hard_reset = 1;
8608 if (interrupts & IPR_PCII_ERROR_INTERRUPTS)
8609 ioa_cfg->needs_hard_reset = 1;
8610 if (interrupts & IPR_PCII_IOA_UNIT_CHECKED)
8611 ioa_cfg->ioa_unit_checked = 1;
8613 ipr_mask_and_clear_interrupts(ioa_cfg, ~IPR_PCII_IOA_TRANS_TO_OPER);
8614 rc = request_irq(pdev->irq, ipr_isr,
8615 ioa_cfg->msi_received ? 0 : IRQF_SHARED,
8619 dev_err(&pdev->dev, "Couldn't register IRQ %d! rc=%d\n",
8624 if ((dev_id->driver_data & IPR_USE_PCI_WARM_RESET) ||
8625 (dev_id->device == PCI_DEVICE_ID_IBM_OBSIDIAN_E && !ioa_cfg->revid)) {
8626 ioa_cfg->needs_warm_reset = 1;
8627 ioa_cfg->reset = ipr_reset_slot_reset;
8629 ioa_cfg->reset = ipr_reset_start_bist;
8631 spin_lock(&ipr_driver_lock);
8632 list_add_tail(&ioa_cfg->queue, &ipr_ioa_head);
8633 spin_unlock(&ipr_driver_lock);
8640 ipr_free_mem(ioa_cfg);
8644 pci_disable_msi(pdev);
8645 out_release_regions:
8646 pci_release_regions(pdev);
8648 scsi_host_put(host);
8650 pci_disable_device(pdev);
8655 * ipr_scan_vsets - Scans for VSET devices
8656 * @ioa_cfg: ioa config struct
8658 * Description: Since the VSET resources do not follow SAM in that we can have
8659 * sparse LUNs with no LUN 0, we have to scan for these ourselves.
8664 static void ipr_scan_vsets(struct ipr_ioa_cfg *ioa_cfg)
8668 for (target = 0; target < IPR_MAX_NUM_TARGETS_PER_BUS; target++)
8669 for (lun = 0; lun < IPR_MAX_NUM_VSET_LUNS_PER_TARGET; lun++ )
8670 scsi_add_device(ioa_cfg->host, IPR_VSET_BUS, target, lun);
8674 * ipr_initiate_ioa_bringdown - Bring down an adapter
8675 * @ioa_cfg: ioa config struct
8676 * @shutdown_type: shutdown type
8678 * Description: This function will initiate bringing down the adapter.
8679 * This consists of issuing an IOA shutdown to the adapter
8680 * to flush the cache, and running BIST.
8681 * If the caller needs to wait on the completion of the reset,
8682 * the caller must sleep on the reset_wait_q.
8687 static void ipr_initiate_ioa_bringdown(struct ipr_ioa_cfg *ioa_cfg,
8688 enum ipr_shutdown_type shutdown_type)
8691 if (ioa_cfg->sdt_state == WAIT_FOR_DUMP)
8692 ioa_cfg->sdt_state = ABORT_DUMP;
8693 ioa_cfg->reset_retries = 0;
8694 ioa_cfg->in_ioa_bringdown = 1;
8695 ipr_initiate_ioa_reset(ioa_cfg, shutdown_type);
8700 * __ipr_remove - Remove a single adapter
8701 * @pdev: pci device struct
8703 * Adapter hot plug remove entry point.
8708 static void __ipr_remove(struct pci_dev *pdev)
8710 unsigned long host_lock_flags = 0;
8711 struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev);
8714 spin_lock_irqsave(ioa_cfg->host->host_lock, host_lock_flags);
8715 while(ioa_cfg->in_reset_reload) {
8716 spin_unlock_irqrestore(ioa_cfg->host->host_lock, host_lock_flags);
8717 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
8718 spin_lock_irqsave(ioa_cfg->host->host_lock, host_lock_flags);
8721 ipr_initiate_ioa_bringdown(ioa_cfg, IPR_SHUTDOWN_NORMAL);
8723 spin_unlock_irqrestore(ioa_cfg->host->host_lock, host_lock_flags);
8724 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
8725 flush_scheduled_work();
8726 spin_lock_irqsave(ioa_cfg->host->host_lock, host_lock_flags);
8728 spin_lock(&ipr_driver_lock);
8729 list_del(&ioa_cfg->queue);
8730 spin_unlock(&ipr_driver_lock);
8732 if (ioa_cfg->sdt_state == ABORT_DUMP)
8733 ioa_cfg->sdt_state = WAIT_FOR_DUMP;
8734 spin_unlock_irqrestore(ioa_cfg->host->host_lock, host_lock_flags);
8736 ipr_free_all_resources(ioa_cfg);
8742 * ipr_remove - IOA hot plug remove entry point
8743 * @pdev: pci device struct
8745 * Adapter hot plug remove entry point.
8750 static void __devexit ipr_remove(struct pci_dev *pdev)
8752 struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev);
8756 ipr_remove_trace_file(&ioa_cfg->host->shost_dev.kobj,
8758 ipr_remove_dump_file(&ioa_cfg->host->shost_dev.kobj,
8760 scsi_remove_host(ioa_cfg->host);
8768 * ipr_probe - Adapter hot plug add entry point
8771 * 0 on success / non-zero on failure
8773 static int __devinit ipr_probe(struct pci_dev *pdev,
8774 const struct pci_device_id *dev_id)
8776 struct ipr_ioa_cfg *ioa_cfg;
8779 rc = ipr_probe_ioa(pdev, dev_id);
8784 ioa_cfg = pci_get_drvdata(pdev);
8785 rc = ipr_probe_ioa_part2(ioa_cfg);
8792 rc = scsi_add_host(ioa_cfg->host, &pdev->dev);
8799 rc = ipr_create_trace_file(&ioa_cfg->host->shost_dev.kobj,
8803 scsi_remove_host(ioa_cfg->host);
8808 rc = ipr_create_dump_file(&ioa_cfg->host->shost_dev.kobj,
8812 ipr_remove_trace_file(&ioa_cfg->host->shost_dev.kobj,
8814 scsi_remove_host(ioa_cfg->host);
8819 scsi_scan_host(ioa_cfg->host);
8820 ipr_scan_vsets(ioa_cfg);
8821 scsi_add_device(ioa_cfg->host, IPR_IOA_BUS, IPR_IOA_TARGET, IPR_IOA_LUN);
8822 ioa_cfg->allow_ml_add_del = 1;
8823 ioa_cfg->host->max_channel = IPR_VSET_BUS;
8824 schedule_work(&ioa_cfg->work_q);
8829 * ipr_shutdown - Shutdown handler.
8830 * @pdev: pci device struct
8832 * This function is invoked upon system shutdown/reboot. It will issue
8833 * an adapter shutdown to the adapter to flush the write cache.
8838 static void ipr_shutdown(struct pci_dev *pdev)
8840 struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev);
8841 unsigned long lock_flags = 0;
8843 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
8844 while(ioa_cfg->in_reset_reload) {
8845 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
8846 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
8847 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
8850 ipr_initiate_ioa_bringdown(ioa_cfg, IPR_SHUTDOWN_NORMAL);
8851 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
8852 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
8855 static struct pci_device_id ipr_pci_table[] __devinitdata = {
8856 { PCI_VENDOR_ID_MYLEX, PCI_DEVICE_ID_IBM_GEMSTONE,
8857 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_5702, 0, 0, 0 },
8858 { PCI_VENDOR_ID_MYLEX, PCI_DEVICE_ID_IBM_GEMSTONE,
8859 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_5703, 0, 0, 0 },
8860 { PCI_VENDOR_ID_MYLEX, PCI_DEVICE_ID_IBM_GEMSTONE,
8861 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_573D, 0, 0, 0 },
8862 { PCI_VENDOR_ID_MYLEX, PCI_DEVICE_ID_IBM_GEMSTONE,
8863 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_573E, 0, 0, 0 },
8864 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CITRINE,
8865 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_571B, 0, 0, 0 },
8866 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CITRINE,
8867 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572E, 0, 0, 0 },
8868 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CITRINE,
8869 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_571A, 0, 0, 0 },
8870 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CITRINE,
8871 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_575B, 0, 0,
8872 IPR_USE_LONG_TRANSOP_TIMEOUT },
8873 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_OBSIDIAN,
8874 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572A, 0, 0, 0 },
8875 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_OBSIDIAN,
8876 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572B, 0, 0,
8877 IPR_USE_LONG_TRANSOP_TIMEOUT },
8878 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_OBSIDIAN,
8879 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_575C, 0, 0,
8880 IPR_USE_LONG_TRANSOP_TIMEOUT },
8881 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN,
8882 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572A, 0, 0, 0 },
8883 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN,
8884 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572B, 0, 0,
8885 IPR_USE_LONG_TRANSOP_TIMEOUT},
8886 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN,
8887 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_575C, 0, 0,
8888 IPR_USE_LONG_TRANSOP_TIMEOUT },
8889 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN_E,
8890 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_574E, 0, 0,
8891 IPR_USE_LONG_TRANSOP_TIMEOUT },
8892 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN_E,
8893 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57B3, 0, 0, 0 },
8894 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN_E,
8895 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57CC, 0, 0, 0 },
8896 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN_E,
8897 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57B7, 0, 0,
8898 IPR_USE_LONG_TRANSOP_TIMEOUT | IPR_USE_PCI_WARM_RESET },
8899 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_SNIPE,
8900 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_2780, 0, 0, 0 },
8901 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_SCAMP,
8902 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_571E, 0, 0, 0 },
8903 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_SCAMP,
8904 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_571F, 0, 0,
8905 IPR_USE_LONG_TRANSOP_TIMEOUT },
8906 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_SCAMP,
8907 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572F, 0, 0,
8908 IPR_USE_LONG_TRANSOP_TIMEOUT },
8909 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_FPGA_E2,
8910 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57B5, 0, 0, 0 },
8911 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_FPGA_E2,
8912 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_574D, 0, 0, 0 },
8913 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_FPGA_E2,
8914 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57B2, 0, 0, 0 },
8915 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_ASIC_E2,
8916 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57B4, 0, 0, 0 },
8917 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_ASIC_E2,
8918 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57B1, 0, 0, 0 },
8919 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_ASIC_E2,
8920 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57C6, 0, 0, 0 },
8921 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_ASIC_E2,
8922 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_575D, 0, 0, 0 },
8923 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_ASIC_E2,
8924 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57CE, 0, 0, 0 },
8927 MODULE_DEVICE_TABLE(pci, ipr_pci_table);
8929 static struct pci_error_handlers ipr_err_handler = {
8930 .error_detected = ipr_pci_error_detected,
8931 .slot_reset = ipr_pci_slot_reset,
8934 static struct pci_driver ipr_driver = {
8936 .id_table = ipr_pci_table,
8938 .remove = __devexit_p(ipr_remove),
8939 .shutdown = ipr_shutdown,
8940 .err_handler = &ipr_err_handler,
8944 * ipr_halt_done - Shutdown prepare completion
8949 static void ipr_halt_done(struct ipr_cmnd *ipr_cmd)
8951 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
8953 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
8957 * ipr_halt - Issue shutdown prepare to all adapters
8960 * NOTIFY_OK on success / NOTIFY_DONE on failure
8962 static int ipr_halt(struct notifier_block *nb, ulong event, void *buf)
8964 struct ipr_cmnd *ipr_cmd;
8965 struct ipr_ioa_cfg *ioa_cfg;
8966 unsigned long flags = 0;
8968 if (event != SYS_RESTART && event != SYS_HALT && event != SYS_POWER_OFF)
8971 spin_lock(&ipr_driver_lock);
8973 list_for_each_entry(ioa_cfg, &ipr_ioa_head, queue) {
8974 spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
8975 if (!ioa_cfg->allow_cmds) {
8976 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
8980 ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg);
8981 ipr_cmd->ioarcb.res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE);
8982 ipr_cmd->ioarcb.cmd_pkt.request_type = IPR_RQTYPE_IOACMD;
8983 ipr_cmd->ioarcb.cmd_pkt.cdb[0] = IPR_IOA_SHUTDOWN;
8984 ipr_cmd->ioarcb.cmd_pkt.cdb[1] = IPR_SHUTDOWN_PREPARE_FOR_NORMAL;
8986 ipr_do_req(ipr_cmd, ipr_halt_done, ipr_timeout, IPR_DEVICE_RESET_TIMEOUT);
8987 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
8989 spin_unlock(&ipr_driver_lock);
8994 static struct notifier_block ipr_notifier = {
8999 * ipr_init - Module entry point
9002 * 0 on success / negative value on failure
9004 static int __init ipr_init(void)
9006 ipr_info("IBM Power RAID SCSI Device Driver version: %s %s\n",
9007 IPR_DRIVER_VERSION, IPR_DRIVER_DATE);
9009 register_reboot_notifier(&ipr_notifier);
9010 return pci_register_driver(&ipr_driver);
9014 * ipr_exit - Module unload
9016 * Module unload entry point.
9021 static void __exit ipr_exit(void)
9023 unregister_reboot_notifier(&ipr_notifier);
9024 pci_unregister_driver(&ipr_driver);
9027 module_init(ipr_init);
9028 module_exit(ipr_exit);