2 * ipr.c -- driver for IBM Power Linux RAID adapters
4 * Written By: Brian King <brking@us.ibm.com>, IBM Corporation
6 * Copyright (C) 2003, 2004 IBM Corporation
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License as published by
10 * the Free Software Foundation; either version 2 of the License, or
11 * (at your option) any later version.
13 * This program is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 * GNU General Public License for more details.
18 * You should have received a copy of the GNU General Public License
19 * along with this program; if not, write to the Free Software
20 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
27 * This driver is used to control the following SCSI adapters:
29 * IBM iSeries: 5702, 5703, 2780, 5709, 570A, 570B
31 * IBM pSeries: PCI-X Dual Channel Ultra 320 SCSI RAID Adapter
32 * PCI-X Dual Channel Ultra 320 SCSI Adapter
33 * PCI-X Dual Channel Ultra 320 SCSI RAID Enablement Card
34 * Embedded SCSI adapter on p615 and p655 systems
36 * Supported Hardware Features:
37 * - Ultra 320 SCSI controller
38 * - PCI-X host interface
39 * - Embedded PowerPC RISC Processor and Hardware XOR DMA Engine
40 * - Non-Volatile Write Cache
41 * - Supports attachment of non-RAID disks, tape, and optical devices
42 * - RAID Levels 0, 5, 10
44 * - Background Parity Checking
45 * - Background Data Scrubbing
46 * - Ability to increase the capacity of an existing RAID 5 disk array
50 * - Tagged command queuing
51 * - Adapter microcode download
53 * - SCSI device hot plug
58 #include <linux/init.h>
59 #include <linux/types.h>
60 #include <linux/errno.h>
61 #include <linux/kernel.h>
62 #include <linux/slab.h>
63 #include <linux/ioport.h>
64 #include <linux/delay.h>
65 #include <linux/pci.h>
66 #include <linux/wait.h>
67 #include <linux/spinlock.h>
68 #include <linux/sched.h>
69 #include <linux/interrupt.h>
70 #include <linux/blkdev.h>
71 #include <linux/firmware.h>
72 #include <linux/module.h>
73 #include <linux/moduleparam.h>
74 #include <linux/libata.h>
75 #include <linux/hdreg.h>
76 #include <linux/reboot.h>
77 #include <linux/stringify.h>
80 #include <asm/processor.h>
81 #include <scsi/scsi.h>
82 #include <scsi/scsi_host.h>
83 #include <scsi/scsi_tcq.h>
84 #include <scsi/scsi_eh.h>
85 #include <scsi/scsi_cmnd.h>
91 static LIST_HEAD(ipr_ioa_head);
92 static unsigned int ipr_log_level = IPR_DEFAULT_LOG_LEVEL;
93 static unsigned int ipr_max_speed = 1;
94 static int ipr_testmode = 0;
95 static unsigned int ipr_fastfail = 0;
96 static unsigned int ipr_transop_timeout = 0;
97 static unsigned int ipr_debug = 0;
98 static unsigned int ipr_max_devs = IPR_DEFAULT_SIS64_DEVS;
99 static unsigned int ipr_dual_ioa_raid = 1;
100 static DEFINE_SPINLOCK(ipr_driver_lock);
102 /* This table describes the differences between DMA controller chips */
103 static const struct ipr_chip_cfg_t ipr_chip_cfg[] = {
104 { /* Gemstone, Citrine, Obsidian, and Obsidian-E */
106 .cache_line_size = 0x20,
108 .set_interrupt_mask_reg = 0x0022C,
109 .clr_interrupt_mask_reg = 0x00230,
110 .clr_interrupt_mask_reg32 = 0x00230,
111 .sense_interrupt_mask_reg = 0x0022C,
112 .sense_interrupt_mask_reg32 = 0x0022C,
113 .clr_interrupt_reg = 0x00228,
114 .clr_interrupt_reg32 = 0x00228,
115 .sense_interrupt_reg = 0x00224,
116 .sense_interrupt_reg32 = 0x00224,
117 .ioarrin_reg = 0x00404,
118 .sense_uproc_interrupt_reg = 0x00214,
119 .sense_uproc_interrupt_reg32 = 0x00214,
120 .set_uproc_interrupt_reg = 0x00214,
121 .set_uproc_interrupt_reg32 = 0x00214,
122 .clr_uproc_interrupt_reg = 0x00218,
123 .clr_uproc_interrupt_reg32 = 0x00218
126 { /* Snipe and Scamp */
128 .cache_line_size = 0x20,
130 .set_interrupt_mask_reg = 0x00288,
131 .clr_interrupt_mask_reg = 0x0028C,
132 .clr_interrupt_mask_reg32 = 0x0028C,
133 .sense_interrupt_mask_reg = 0x00288,
134 .sense_interrupt_mask_reg32 = 0x00288,
135 .clr_interrupt_reg = 0x00284,
136 .clr_interrupt_reg32 = 0x00284,
137 .sense_interrupt_reg = 0x00280,
138 .sense_interrupt_reg32 = 0x00280,
139 .ioarrin_reg = 0x00504,
140 .sense_uproc_interrupt_reg = 0x00290,
141 .sense_uproc_interrupt_reg32 = 0x00290,
142 .set_uproc_interrupt_reg = 0x00290,
143 .set_uproc_interrupt_reg32 = 0x00290,
144 .clr_uproc_interrupt_reg = 0x00294,
145 .clr_uproc_interrupt_reg32 = 0x00294
150 .cache_line_size = 0x20,
152 .set_interrupt_mask_reg = 0x00010,
153 .clr_interrupt_mask_reg = 0x00018,
154 .clr_interrupt_mask_reg32 = 0x0001C,
155 .sense_interrupt_mask_reg = 0x00010,
156 .sense_interrupt_mask_reg32 = 0x00014,
157 .clr_interrupt_reg = 0x00008,
158 .clr_interrupt_reg32 = 0x0000C,
159 .sense_interrupt_reg = 0x00000,
160 .sense_interrupt_reg32 = 0x00004,
161 .ioarrin_reg = 0x00070,
162 .sense_uproc_interrupt_reg = 0x00020,
163 .sense_uproc_interrupt_reg32 = 0x00024,
164 .set_uproc_interrupt_reg = 0x00020,
165 .set_uproc_interrupt_reg32 = 0x00024,
166 .clr_uproc_interrupt_reg = 0x00028,
167 .clr_uproc_interrupt_reg32 = 0x0002C,
168 .init_feedback_reg = 0x0005C,
169 .dump_addr_reg = 0x00064,
170 .dump_data_reg = 0x00068,
171 .endian_swap_reg = 0x00084
176 static const struct ipr_chip_t ipr_chip[] = {
177 { PCI_VENDOR_ID_MYLEX, PCI_DEVICE_ID_IBM_GEMSTONE, IPR_USE_LSI, IPR_SIS32, IPR_PCI_CFG, &ipr_chip_cfg[0] },
178 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CITRINE, IPR_USE_LSI, IPR_SIS32, IPR_PCI_CFG, &ipr_chip_cfg[0] },
179 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_OBSIDIAN, IPR_USE_LSI, IPR_SIS32, IPR_PCI_CFG, &ipr_chip_cfg[0] },
180 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN, IPR_USE_LSI, IPR_SIS32, IPR_PCI_CFG, &ipr_chip_cfg[0] },
181 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN_E, IPR_USE_MSI, IPR_SIS32, IPR_PCI_CFG, &ipr_chip_cfg[0] },
182 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_SNIPE, IPR_USE_LSI, IPR_SIS32, IPR_PCI_CFG, &ipr_chip_cfg[1] },
183 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_SCAMP, IPR_USE_LSI, IPR_SIS32, IPR_PCI_CFG, &ipr_chip_cfg[1] },
184 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_FPGA_E2, IPR_USE_MSI, IPR_SIS64, IPR_MMIO, &ipr_chip_cfg[2] },
185 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_ASIC_E2, IPR_USE_MSI, IPR_SIS64, IPR_MMIO, &ipr_chip_cfg[2] }
188 static int ipr_max_bus_speeds [] = {
189 IPR_80MBs_SCSI_RATE, IPR_U160_SCSI_RATE, IPR_U320_SCSI_RATE
192 MODULE_AUTHOR("Brian King <brking@us.ibm.com>");
193 MODULE_DESCRIPTION("IBM Power RAID SCSI Adapter Driver");
194 module_param_named(max_speed, ipr_max_speed, uint, 0);
195 MODULE_PARM_DESC(max_speed, "Maximum bus speed (0-2). Default: 1=U160. Speeds: 0=80 MB/s, 1=U160, 2=U320");
196 module_param_named(log_level, ipr_log_level, uint, 0);
197 MODULE_PARM_DESC(log_level, "Set to 0 - 4 for increasing verbosity of device driver");
198 module_param_named(testmode, ipr_testmode, int, 0);
199 MODULE_PARM_DESC(testmode, "DANGEROUS!!! Allows unsupported configurations");
200 module_param_named(fastfail, ipr_fastfail, int, S_IRUGO | S_IWUSR);
201 MODULE_PARM_DESC(fastfail, "Reduce timeouts and retries");
202 module_param_named(transop_timeout, ipr_transop_timeout, int, 0);
203 MODULE_PARM_DESC(transop_timeout, "Time in seconds to wait for adapter to come operational (default: 300)");
204 module_param_named(debug, ipr_debug, int, S_IRUGO | S_IWUSR);
205 MODULE_PARM_DESC(debug, "Enable device driver debugging logging. Set to 1 to enable. (default: 0)");
206 module_param_named(dual_ioa_raid, ipr_dual_ioa_raid, int, 0);
207 MODULE_PARM_DESC(dual_ioa_raid, "Enable dual adapter RAID support. Set to 1 to enable. (default: 1)");
208 module_param_named(max_devs, ipr_max_devs, int, 0);
209 MODULE_PARM_DESC(max_devs, "Specify the maximum number of physical devices. "
210 "[Default=" __stringify(IPR_DEFAULT_SIS64_DEVS) "]");
211 MODULE_LICENSE("GPL");
212 MODULE_VERSION(IPR_DRIVER_VERSION);
214 /* A constant array of IOASCs/URCs/Error Messages */
216 struct ipr_error_table_t ipr_error_table[] = {
217 {0x00000000, 1, IPR_DEFAULT_LOG_LEVEL,
218 "8155: An unknown error was received"},
220 "Soft underlength error"},
222 "Command to be cancelled not found"},
224 "Qualified success"},
225 {0x01080000, 1, IPR_DEFAULT_LOG_LEVEL,
226 "FFFE: Soft device bus error recovered by the IOA"},
227 {0x01088100, 0, IPR_DEFAULT_LOG_LEVEL,
228 "4101: Soft device bus fabric error"},
229 {0x01100100, 0, IPR_DEFAULT_LOG_LEVEL,
230 "FFFC: Logical block guard error recovered by the device"},
231 {0x01100300, 0, IPR_DEFAULT_LOG_LEVEL,
232 "FFFC: Logical block reference tag error recovered by the device"},
233 {0x01108300, 0, IPR_DEFAULT_LOG_LEVEL,
234 "4171: Recovered scatter list tag / sequence number error"},
235 {0x01109000, 0, IPR_DEFAULT_LOG_LEVEL,
236 "FF3D: Recovered logical block CRC error on IOA to Host transfer"},
237 {0x01109200, 0, IPR_DEFAULT_LOG_LEVEL,
238 "4171: Recovered logical block sequence number error on IOA to Host transfer"},
239 {0x0110A000, 0, IPR_DEFAULT_LOG_LEVEL,
240 "FFFD: Recovered logical block reference tag error detected by the IOA"},
241 {0x0110A100, 0, IPR_DEFAULT_LOG_LEVEL,
242 "FFFD: Logical block guard error recovered by the IOA"},
243 {0x01170600, 0, IPR_DEFAULT_LOG_LEVEL,
244 "FFF9: Device sector reassign successful"},
245 {0x01170900, 0, IPR_DEFAULT_LOG_LEVEL,
246 "FFF7: Media error recovered by device rewrite procedures"},
247 {0x01180200, 0, IPR_DEFAULT_LOG_LEVEL,
248 "7001: IOA sector reassignment successful"},
249 {0x01180500, 0, IPR_DEFAULT_LOG_LEVEL,
250 "FFF9: Soft media error. Sector reassignment recommended"},
251 {0x01180600, 0, IPR_DEFAULT_LOG_LEVEL,
252 "FFF7: Media error recovered by IOA rewrite procedures"},
253 {0x01418000, 0, IPR_DEFAULT_LOG_LEVEL,
254 "FF3D: Soft PCI bus error recovered by the IOA"},
255 {0x01440000, 1, IPR_DEFAULT_LOG_LEVEL,
256 "FFF6: Device hardware error recovered by the IOA"},
257 {0x01448100, 0, IPR_DEFAULT_LOG_LEVEL,
258 "FFF6: Device hardware error recovered by the device"},
259 {0x01448200, 1, IPR_DEFAULT_LOG_LEVEL,
260 "FF3D: Soft IOA error recovered by the IOA"},
261 {0x01448300, 0, IPR_DEFAULT_LOG_LEVEL,
262 "FFFA: Undefined device response recovered by the IOA"},
263 {0x014A0000, 1, IPR_DEFAULT_LOG_LEVEL,
264 "FFF6: Device bus error, message or command phase"},
265 {0x014A8000, 0, IPR_DEFAULT_LOG_LEVEL,
266 "FFFE: Task Management Function failed"},
267 {0x015D0000, 0, IPR_DEFAULT_LOG_LEVEL,
268 "FFF6: Failure prediction threshold exceeded"},
269 {0x015D9200, 0, IPR_DEFAULT_LOG_LEVEL,
270 "8009: Impending cache battery pack failure"},
272 "34FF: Disk device format in progress"},
273 {0x02048000, 0, IPR_DEFAULT_LOG_LEVEL,
274 "9070: IOA requested reset"},
276 "Synchronization required"},
278 "No ready, IOA shutdown"},
280 "Not ready, IOA has been shutdown"},
281 {0x02670100, 0, IPR_DEFAULT_LOG_LEVEL,
282 "3020: Storage subsystem configuration error"},
284 "FFF5: Medium error, data unreadable, recommend reassign"},
286 "7000: Medium error, data unreadable, do not reassign"},
287 {0x03310000, 0, IPR_DEFAULT_LOG_LEVEL,
288 "FFF3: Disk media format bad"},
289 {0x04050000, 0, IPR_DEFAULT_LOG_LEVEL,
290 "3002: Addressed device failed to respond to selection"},
291 {0x04080000, 1, IPR_DEFAULT_LOG_LEVEL,
292 "3100: Device bus error"},
293 {0x04080100, 0, IPR_DEFAULT_LOG_LEVEL,
294 "3109: IOA timed out a device command"},
296 "3120: SCSI bus is not operational"},
297 {0x04088100, 0, IPR_DEFAULT_LOG_LEVEL,
298 "4100: Hard device bus fabric error"},
299 {0x04100100, 0, IPR_DEFAULT_LOG_LEVEL,
300 "310C: Logical block guard error detected by the device"},
301 {0x04100300, 0, IPR_DEFAULT_LOG_LEVEL,
302 "310C: Logical block reference tag error detected by the device"},
303 {0x04108300, 1, IPR_DEFAULT_LOG_LEVEL,
304 "4170: Scatter list tag / sequence number error"},
305 {0x04109000, 1, IPR_DEFAULT_LOG_LEVEL,
306 "8150: Logical block CRC error on IOA to Host transfer"},
307 {0x04109200, 1, IPR_DEFAULT_LOG_LEVEL,
308 "4170: Logical block sequence number error on IOA to Host transfer"},
309 {0x0410A000, 0, IPR_DEFAULT_LOG_LEVEL,
310 "310D: Logical block reference tag error detected by the IOA"},
311 {0x0410A100, 0, IPR_DEFAULT_LOG_LEVEL,
312 "310D: Logical block guard error detected by the IOA"},
313 {0x04118000, 0, IPR_DEFAULT_LOG_LEVEL,
314 "9000: IOA reserved area data check"},
315 {0x04118100, 0, IPR_DEFAULT_LOG_LEVEL,
316 "9001: IOA reserved area invalid data pattern"},
317 {0x04118200, 0, IPR_DEFAULT_LOG_LEVEL,
318 "9002: IOA reserved area LRC error"},
319 {0x04118300, 1, IPR_DEFAULT_LOG_LEVEL,
320 "Hardware Error, IOA metadata access error"},
321 {0x04320000, 0, IPR_DEFAULT_LOG_LEVEL,
322 "102E: Out of alternate sectors for disk storage"},
323 {0x04330000, 1, IPR_DEFAULT_LOG_LEVEL,
324 "FFF4: Data transfer underlength error"},
325 {0x04338000, 1, IPR_DEFAULT_LOG_LEVEL,
326 "FFF4: Data transfer overlength error"},
327 {0x043E0100, 0, IPR_DEFAULT_LOG_LEVEL,
328 "3400: Logical unit failure"},
329 {0x04408500, 0, IPR_DEFAULT_LOG_LEVEL,
330 "FFF4: Device microcode is corrupt"},
331 {0x04418000, 1, IPR_DEFAULT_LOG_LEVEL,
332 "8150: PCI bus error"},
334 "Unsupported device bus message received"},
335 {0x04440000, 1, IPR_DEFAULT_LOG_LEVEL,
336 "FFF4: Disk device problem"},
337 {0x04448200, 1, IPR_DEFAULT_LOG_LEVEL,
338 "8150: Permanent IOA failure"},
339 {0x04448300, 0, IPR_DEFAULT_LOG_LEVEL,
340 "3010: Disk device returned wrong response to IOA"},
341 {0x04448400, 0, IPR_DEFAULT_LOG_LEVEL,
342 "8151: IOA microcode error"},
344 "Device bus status error"},
345 {0x04448600, 0, IPR_DEFAULT_LOG_LEVEL,
346 "8157: IOA error requiring IOA reset to recover"},
348 "ATA device status error"},
350 "Message reject received from the device"},
351 {0x04449200, 0, IPR_DEFAULT_LOG_LEVEL,
352 "8008: A permanent cache battery pack failure occurred"},
353 {0x0444A000, 0, IPR_DEFAULT_LOG_LEVEL,
354 "9090: Disk unit has been modified after the last known status"},
355 {0x0444A200, 0, IPR_DEFAULT_LOG_LEVEL,
356 "9081: IOA detected device error"},
357 {0x0444A300, 0, IPR_DEFAULT_LOG_LEVEL,
358 "9082: IOA detected device error"},
359 {0x044A0000, 1, IPR_DEFAULT_LOG_LEVEL,
360 "3110: Device bus error, message or command phase"},
361 {0x044A8000, 1, IPR_DEFAULT_LOG_LEVEL,
362 "3110: SAS Command / Task Management Function failed"},
363 {0x04670400, 0, IPR_DEFAULT_LOG_LEVEL,
364 "9091: Incorrect hardware configuration change has been detected"},
365 {0x04678000, 0, IPR_DEFAULT_LOG_LEVEL,
366 "9073: Invalid multi-adapter configuration"},
367 {0x04678100, 0, IPR_DEFAULT_LOG_LEVEL,
368 "4010: Incorrect connection between cascaded expanders"},
369 {0x04678200, 0, IPR_DEFAULT_LOG_LEVEL,
370 "4020: Connections exceed IOA design limits"},
371 {0x04678300, 0, IPR_DEFAULT_LOG_LEVEL,
372 "4030: Incorrect multipath connection"},
373 {0x04679000, 0, IPR_DEFAULT_LOG_LEVEL,
374 "4110: Unsupported enclosure function"},
375 {0x046E0000, 0, IPR_DEFAULT_LOG_LEVEL,
376 "FFF4: Command to logical unit failed"},
378 "Illegal request, invalid request type or request packet"},
380 "Illegal request, invalid resource handle"},
382 "Illegal request, commands not allowed to this device"},
384 "Illegal request, command not allowed to a secondary adapter"},
386 "Illegal request, command not allowed to a non-optimized resource"},
388 "Illegal request, invalid field in parameter list"},
390 "Illegal request, parameter not supported"},
392 "Illegal request, parameter value invalid"},
394 "Illegal request, command sequence error"},
396 "Illegal request, dual adapter support not enabled"},
397 {0x06040500, 0, IPR_DEFAULT_LOG_LEVEL,
398 "9031: Array protection temporarily suspended, protection resuming"},
399 {0x06040600, 0, IPR_DEFAULT_LOG_LEVEL,
400 "9040: Array protection temporarily suspended, protection resuming"},
401 {0x06288000, 0, IPR_DEFAULT_LOG_LEVEL,
402 "3140: Device bus not ready to ready transition"},
403 {0x06290000, 0, IPR_DEFAULT_LOG_LEVEL,
404 "FFFB: SCSI bus was reset"},
406 "FFFE: SCSI bus transition to single ended"},
408 "FFFE: SCSI bus transition to LVD"},
409 {0x06298000, 0, IPR_DEFAULT_LOG_LEVEL,
410 "FFFB: SCSI bus was reset by another initiator"},
411 {0x063F0300, 0, IPR_DEFAULT_LOG_LEVEL,
412 "3029: A device replacement has occurred"},
413 {0x064C8000, 0, IPR_DEFAULT_LOG_LEVEL,
414 "9051: IOA cache data exists for a missing or failed device"},
415 {0x064C8100, 0, IPR_DEFAULT_LOG_LEVEL,
416 "9055: Auxiliary cache IOA contains cache data needed by the primary IOA"},
417 {0x06670100, 0, IPR_DEFAULT_LOG_LEVEL,
418 "9025: Disk unit is not supported at its physical location"},
419 {0x06670600, 0, IPR_DEFAULT_LOG_LEVEL,
420 "3020: IOA detected a SCSI bus configuration error"},
421 {0x06678000, 0, IPR_DEFAULT_LOG_LEVEL,
422 "3150: SCSI bus configuration error"},
423 {0x06678100, 0, IPR_DEFAULT_LOG_LEVEL,
424 "9074: Asymmetric advanced function disk configuration"},
425 {0x06678300, 0, IPR_DEFAULT_LOG_LEVEL,
426 "4040: Incomplete multipath connection between IOA and enclosure"},
427 {0x06678400, 0, IPR_DEFAULT_LOG_LEVEL,
428 "4041: Incomplete multipath connection between enclosure and device"},
429 {0x06678500, 0, IPR_DEFAULT_LOG_LEVEL,
430 "9075: Incomplete multipath connection between IOA and remote IOA"},
431 {0x06678600, 0, IPR_DEFAULT_LOG_LEVEL,
432 "9076: Configuration error, missing remote IOA"},
433 {0x06679100, 0, IPR_DEFAULT_LOG_LEVEL,
434 "4050: Enclosure does not support a required multipath function"},
435 {0x06690000, 0, IPR_DEFAULT_LOG_LEVEL,
436 "4070: Logically bad block written on device"},
437 {0x06690200, 0, IPR_DEFAULT_LOG_LEVEL,
438 "9041: Array protection temporarily suspended"},
439 {0x06698200, 0, IPR_DEFAULT_LOG_LEVEL,
440 "9042: Corrupt array parity detected on specified device"},
441 {0x066B0200, 0, IPR_DEFAULT_LOG_LEVEL,
442 "9030: Array no longer protected due to missing or failed disk unit"},
443 {0x066B8000, 0, IPR_DEFAULT_LOG_LEVEL,
444 "9071: Link operational transition"},
445 {0x066B8100, 0, IPR_DEFAULT_LOG_LEVEL,
446 "9072: Link not operational transition"},
447 {0x066B8200, 0, IPR_DEFAULT_LOG_LEVEL,
448 "9032: Array exposed but still protected"},
449 {0x066B8300, 0, IPR_DEFAULT_LOG_LEVEL + 1,
450 "70DD: Device forced failed by disrupt device command"},
451 {0x066B9100, 0, IPR_DEFAULT_LOG_LEVEL,
452 "4061: Multipath redundancy level got better"},
453 {0x066B9200, 0, IPR_DEFAULT_LOG_LEVEL,
454 "4060: Multipath redundancy level got worse"},
456 "Failure due to other device"},
457 {0x07278000, 0, IPR_DEFAULT_LOG_LEVEL,
458 "9008: IOA does not support functions expected by devices"},
459 {0x07278100, 0, IPR_DEFAULT_LOG_LEVEL,
460 "9010: Cache data associated with attached devices cannot be found"},
461 {0x07278200, 0, IPR_DEFAULT_LOG_LEVEL,
462 "9011: Cache data belongs to devices other than those attached"},
463 {0x07278400, 0, IPR_DEFAULT_LOG_LEVEL,
464 "9020: Array missing 2 or more devices with only 1 device present"},
465 {0x07278500, 0, IPR_DEFAULT_LOG_LEVEL,
466 "9021: Array missing 2 or more devices with 2 or more devices present"},
467 {0x07278600, 0, IPR_DEFAULT_LOG_LEVEL,
468 "9022: Exposed array is missing a required device"},
469 {0x07278700, 0, IPR_DEFAULT_LOG_LEVEL,
470 "9023: Array member(s) not at required physical locations"},
471 {0x07278800, 0, IPR_DEFAULT_LOG_LEVEL,
472 "9024: Array not functional due to present hardware configuration"},
473 {0x07278900, 0, IPR_DEFAULT_LOG_LEVEL,
474 "9026: Array not functional due to present hardware configuration"},
475 {0x07278A00, 0, IPR_DEFAULT_LOG_LEVEL,
476 "9027: Array is missing a device and parity is out of sync"},
477 {0x07278B00, 0, IPR_DEFAULT_LOG_LEVEL,
478 "9028: Maximum number of arrays already exist"},
479 {0x07278C00, 0, IPR_DEFAULT_LOG_LEVEL,
480 "9050: Required cache data cannot be located for a disk unit"},
481 {0x07278D00, 0, IPR_DEFAULT_LOG_LEVEL,
482 "9052: Cache data exists for a device that has been modified"},
483 {0x07278F00, 0, IPR_DEFAULT_LOG_LEVEL,
484 "9054: IOA resources not available due to previous problems"},
485 {0x07279100, 0, IPR_DEFAULT_LOG_LEVEL,
486 "9092: Disk unit requires initialization before use"},
487 {0x07279200, 0, IPR_DEFAULT_LOG_LEVEL,
488 "9029: Incorrect hardware configuration change has been detected"},
489 {0x07279600, 0, IPR_DEFAULT_LOG_LEVEL,
490 "9060: One or more disk pairs are missing from an array"},
491 {0x07279700, 0, IPR_DEFAULT_LOG_LEVEL,
492 "9061: One or more disks are missing from an array"},
493 {0x07279800, 0, IPR_DEFAULT_LOG_LEVEL,
494 "9062: One or more disks are missing from an array"},
495 {0x07279900, 0, IPR_DEFAULT_LOG_LEVEL,
496 "9063: Maximum number of functional arrays has been exceeded"},
498 "Aborted command, invalid descriptor"},
500 "Command terminated by host"}
503 static const struct ipr_ses_table_entry ipr_ses_table[] = {
504 { "2104-DL1 ", "XXXXXXXXXXXXXXXX", 80 },
505 { "2104-TL1 ", "XXXXXXXXXXXXXXXX", 80 },
506 { "HSBP07M P U2SCSI", "XXXXXXXXXXXXXXXX", 80 }, /* Hidive 7 slot */
507 { "HSBP05M P U2SCSI", "XXXXXXXXXXXXXXXX", 80 }, /* Hidive 5 slot */
508 { "HSBP05M S U2SCSI", "XXXXXXXXXXXXXXXX", 80 }, /* Bowtie */
509 { "HSBP06E ASU2SCSI", "XXXXXXXXXXXXXXXX", 80 }, /* MartinFenning */
510 { "2104-DU3 ", "XXXXXXXXXXXXXXXX", 160 },
511 { "2104-TU3 ", "XXXXXXXXXXXXXXXX", 160 },
512 { "HSBP04C RSU2SCSI", "XXXXXXX*XXXXXXXX", 160 },
513 { "HSBP06E RSU2SCSI", "XXXXXXX*XXXXXXXX", 160 },
514 { "St V1S2 ", "XXXXXXXXXXXXXXXX", 160 },
515 { "HSBPD4M PU3SCSI", "XXXXXXX*XXXXXXXX", 160 },
516 { "VSBPD1H U3SCSI", "XXXXXXX*XXXXXXXX", 160 }
520 * Function Prototypes
522 static int ipr_reset_alert(struct ipr_cmnd *);
523 static void ipr_process_ccn(struct ipr_cmnd *);
524 static void ipr_process_error(struct ipr_cmnd *);
525 static void ipr_reset_ioa_job(struct ipr_cmnd *);
526 static void ipr_initiate_ioa_reset(struct ipr_ioa_cfg *,
527 enum ipr_shutdown_type);
529 #ifdef CONFIG_SCSI_IPR_TRACE
531 * ipr_trc_hook - Add a trace entry to the driver trace
532 * @ipr_cmd: ipr command struct
534 * @add_data: additional data
539 static void ipr_trc_hook(struct ipr_cmnd *ipr_cmd,
540 u8 type, u32 add_data)
542 struct ipr_trace_entry *trace_entry;
543 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
545 trace_entry = &ioa_cfg->trace[ioa_cfg->trace_index++];
546 trace_entry->time = jiffies;
547 trace_entry->op_code = ipr_cmd->ioarcb.cmd_pkt.cdb[0];
548 trace_entry->type = type;
549 if (ipr_cmd->ioa_cfg->sis64)
550 trace_entry->ata_op_code = ipr_cmd->i.ata_ioadl.regs.command;
552 trace_entry->ata_op_code = ipr_cmd->ioarcb.u.add_data.u.regs.command;
553 trace_entry->cmd_index = ipr_cmd->cmd_index & 0xff;
554 trace_entry->res_handle = ipr_cmd->ioarcb.res_handle;
555 trace_entry->u.add_data = add_data;
558 #define ipr_trc_hook(ipr_cmd, type, add_data) do { } while(0)
562 * ipr_reinit_ipr_cmnd - Re-initialize an IPR Cmnd block for reuse
563 * @ipr_cmd: ipr command struct
568 static void ipr_reinit_ipr_cmnd(struct ipr_cmnd *ipr_cmd)
570 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
571 struct ipr_ioasa *ioasa = &ipr_cmd->s.ioasa;
572 struct ipr_ioasa64 *ioasa64 = &ipr_cmd->s.ioasa64;
573 dma_addr_t dma_addr = ipr_cmd->dma_addr;
575 memset(&ioarcb->cmd_pkt, 0, sizeof(struct ipr_cmd_pkt));
576 ioarcb->data_transfer_length = 0;
577 ioarcb->read_data_transfer_length = 0;
578 ioarcb->ioadl_len = 0;
579 ioarcb->read_ioadl_len = 0;
581 if (ipr_cmd->ioa_cfg->sis64) {
582 ioarcb->u.sis64_addr_data.data_ioadl_addr =
583 cpu_to_be64(dma_addr + offsetof(struct ipr_cmnd, i.ioadl64));
584 ioasa64->u.gata.status = 0;
586 ioarcb->write_ioadl_addr =
587 cpu_to_be32(dma_addr + offsetof(struct ipr_cmnd, i.ioadl));
588 ioarcb->read_ioadl_addr = ioarcb->write_ioadl_addr;
589 ioasa->u.gata.status = 0;
592 ioasa->hdr.ioasc = 0;
593 ioasa->hdr.residual_data_len = 0;
594 ipr_cmd->scsi_cmd = NULL;
596 ipr_cmd->sense_buffer[0] = 0;
597 ipr_cmd->dma_use_sg = 0;
601 * ipr_init_ipr_cmnd - Initialize an IPR Cmnd block
602 * @ipr_cmd: ipr command struct
607 static void ipr_init_ipr_cmnd(struct ipr_cmnd *ipr_cmd)
609 ipr_reinit_ipr_cmnd(ipr_cmd);
610 ipr_cmd->u.scratch = 0;
611 ipr_cmd->sibling = NULL;
612 init_timer(&ipr_cmd->timer);
616 * ipr_get_free_ipr_cmnd - Get a free IPR Cmnd block
617 * @ioa_cfg: ioa config struct
620 * pointer to ipr command struct
623 struct ipr_cmnd *ipr_get_free_ipr_cmnd(struct ipr_ioa_cfg *ioa_cfg)
625 struct ipr_cmnd *ipr_cmd;
627 ipr_cmd = list_entry(ioa_cfg->free_q.next, struct ipr_cmnd, queue);
628 list_del(&ipr_cmd->queue);
629 ipr_init_ipr_cmnd(ipr_cmd);
635 * ipr_mask_and_clear_interrupts - Mask all and clear specified interrupts
636 * @ioa_cfg: ioa config struct
637 * @clr_ints: interrupts to clear
639 * This function masks all interrupts on the adapter, then clears the
640 * interrupts specified in the mask
645 static void ipr_mask_and_clear_interrupts(struct ipr_ioa_cfg *ioa_cfg,
648 volatile u32 int_reg;
650 /* Stop new interrupts */
651 ioa_cfg->allow_interrupts = 0;
653 /* Set interrupt mask to stop all new interrupts */
655 writeq(~0, ioa_cfg->regs.set_interrupt_mask_reg);
657 writel(~0, ioa_cfg->regs.set_interrupt_mask_reg);
659 /* Clear any pending interrupts */
661 writel(~0, ioa_cfg->regs.clr_interrupt_reg);
662 writel(clr_ints, ioa_cfg->regs.clr_interrupt_reg32);
663 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg);
667 * ipr_save_pcix_cmd_reg - Save PCI-X command register
668 * @ioa_cfg: ioa config struct
671 * 0 on success / -EIO on failure
673 static int ipr_save_pcix_cmd_reg(struct ipr_ioa_cfg *ioa_cfg)
675 int pcix_cmd_reg = pci_find_capability(ioa_cfg->pdev, PCI_CAP_ID_PCIX);
677 if (pcix_cmd_reg == 0)
680 if (pci_read_config_word(ioa_cfg->pdev, pcix_cmd_reg + PCI_X_CMD,
681 &ioa_cfg->saved_pcix_cmd_reg) != PCIBIOS_SUCCESSFUL) {
682 dev_err(&ioa_cfg->pdev->dev, "Failed to save PCI-X command register\n");
686 ioa_cfg->saved_pcix_cmd_reg |= PCI_X_CMD_DPERR_E | PCI_X_CMD_ERO;
691 * ipr_set_pcix_cmd_reg - Setup PCI-X command register
692 * @ioa_cfg: ioa config struct
695 * 0 on success / -EIO on failure
697 static int ipr_set_pcix_cmd_reg(struct ipr_ioa_cfg *ioa_cfg)
699 int pcix_cmd_reg = pci_find_capability(ioa_cfg->pdev, PCI_CAP_ID_PCIX);
702 if (pci_write_config_word(ioa_cfg->pdev, pcix_cmd_reg + PCI_X_CMD,
703 ioa_cfg->saved_pcix_cmd_reg) != PCIBIOS_SUCCESSFUL) {
704 dev_err(&ioa_cfg->pdev->dev, "Failed to setup PCI-X command register\n");
713 * ipr_sata_eh_done - done function for aborted SATA commands
714 * @ipr_cmd: ipr command struct
716 * This function is invoked for ops generated to SATA
717 * devices which are being aborted.
722 static void ipr_sata_eh_done(struct ipr_cmnd *ipr_cmd)
724 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
725 struct ata_queued_cmd *qc = ipr_cmd->qc;
726 struct ipr_sata_port *sata_port = qc->ap->private_data;
728 qc->err_mask |= AC_ERR_OTHER;
729 sata_port->ioasa.status |= ATA_BUSY;
730 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
735 * ipr_scsi_eh_done - mid-layer done function for aborted ops
736 * @ipr_cmd: ipr command struct
738 * This function is invoked by the interrupt handler for
739 * ops generated by the SCSI mid-layer which are being aborted.
744 static void ipr_scsi_eh_done(struct ipr_cmnd *ipr_cmd)
746 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
747 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd;
749 scsi_cmd->result |= (DID_ERROR << 16);
751 scsi_dma_unmap(ipr_cmd->scsi_cmd);
752 scsi_cmd->scsi_done(scsi_cmd);
753 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
757 * ipr_fail_all_ops - Fails all outstanding ops.
758 * @ioa_cfg: ioa config struct
760 * This function fails all outstanding ops.
765 static void ipr_fail_all_ops(struct ipr_ioa_cfg *ioa_cfg)
767 struct ipr_cmnd *ipr_cmd, *temp;
770 list_for_each_entry_safe(ipr_cmd, temp, &ioa_cfg->pending_q, queue) {
771 list_del(&ipr_cmd->queue);
773 ipr_cmd->s.ioasa.hdr.ioasc = cpu_to_be32(IPR_IOASC_IOA_WAS_RESET);
774 ipr_cmd->s.ioasa.hdr.ilid = cpu_to_be32(IPR_DRIVER_ILID);
776 if (ipr_cmd->scsi_cmd)
777 ipr_cmd->done = ipr_scsi_eh_done;
778 else if (ipr_cmd->qc)
779 ipr_cmd->done = ipr_sata_eh_done;
781 ipr_trc_hook(ipr_cmd, IPR_TRACE_FINISH, IPR_IOASC_IOA_WAS_RESET);
782 del_timer(&ipr_cmd->timer);
783 ipr_cmd->done(ipr_cmd);
790 * ipr_send_command - Send driver initiated requests.
791 * @ipr_cmd: ipr command struct
793 * This function sends a command to the adapter using the correct write call.
794 * In the case of sis64, calculate the ioarcb size required. Then or in the
800 static void ipr_send_command(struct ipr_cmnd *ipr_cmd)
802 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
803 dma_addr_t send_dma_addr = ipr_cmd->dma_addr;
805 if (ioa_cfg->sis64) {
806 /* The default size is 256 bytes */
807 send_dma_addr |= 0x1;
809 /* If the number of ioadls * size of ioadl > 128 bytes,
810 then use a 512 byte ioarcb */
811 if (ipr_cmd->dma_use_sg * sizeof(struct ipr_ioadl64_desc) > 128 )
812 send_dma_addr |= 0x4;
813 writeq(send_dma_addr, ioa_cfg->regs.ioarrin_reg);
815 writel(send_dma_addr, ioa_cfg->regs.ioarrin_reg);
819 * ipr_do_req - Send driver initiated requests.
820 * @ipr_cmd: ipr command struct
821 * @done: done function
822 * @timeout_func: timeout function
823 * @timeout: timeout value
825 * This function sends the specified command to the adapter with the
826 * timeout given. The done function is invoked on command completion.
831 static void ipr_do_req(struct ipr_cmnd *ipr_cmd,
832 void (*done) (struct ipr_cmnd *),
833 void (*timeout_func) (struct ipr_cmnd *), u32 timeout)
835 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
837 list_add_tail(&ipr_cmd->queue, &ioa_cfg->pending_q);
839 ipr_cmd->done = done;
841 ipr_cmd->timer.data = (unsigned long) ipr_cmd;
842 ipr_cmd->timer.expires = jiffies + timeout;
843 ipr_cmd->timer.function = (void (*)(unsigned long))timeout_func;
845 add_timer(&ipr_cmd->timer);
847 ipr_trc_hook(ipr_cmd, IPR_TRACE_START, 0);
851 ipr_send_command(ipr_cmd);
855 * ipr_internal_cmd_done - Op done function for an internally generated op.
856 * @ipr_cmd: ipr command struct
858 * This function is the op done function for an internally generated,
859 * blocking op. It simply wakes the sleeping thread.
864 static void ipr_internal_cmd_done(struct ipr_cmnd *ipr_cmd)
866 if (ipr_cmd->sibling)
867 ipr_cmd->sibling = NULL;
869 complete(&ipr_cmd->completion);
873 * ipr_init_ioadl - initialize the ioadl for the correct SIS type
874 * @ipr_cmd: ipr command struct
875 * @dma_addr: dma address
876 * @len: transfer length
877 * @flags: ioadl flag value
879 * This function initializes an ioadl in the case where there is only a single
885 static void ipr_init_ioadl(struct ipr_cmnd *ipr_cmd, dma_addr_t dma_addr,
888 struct ipr_ioadl_desc *ioadl = ipr_cmd->i.ioadl;
889 struct ipr_ioadl64_desc *ioadl64 = ipr_cmd->i.ioadl64;
891 ipr_cmd->dma_use_sg = 1;
893 if (ipr_cmd->ioa_cfg->sis64) {
894 ioadl64->flags = cpu_to_be32(flags);
895 ioadl64->data_len = cpu_to_be32(len);
896 ioadl64->address = cpu_to_be64(dma_addr);
898 ipr_cmd->ioarcb.ioadl_len =
899 cpu_to_be32(sizeof(struct ipr_ioadl64_desc));
900 ipr_cmd->ioarcb.data_transfer_length = cpu_to_be32(len);
902 ioadl->flags_and_data_len = cpu_to_be32(flags | len);
903 ioadl->address = cpu_to_be32(dma_addr);
905 if (flags == IPR_IOADL_FLAGS_READ_LAST) {
906 ipr_cmd->ioarcb.read_ioadl_len =
907 cpu_to_be32(sizeof(struct ipr_ioadl_desc));
908 ipr_cmd->ioarcb.read_data_transfer_length = cpu_to_be32(len);
910 ipr_cmd->ioarcb.ioadl_len =
911 cpu_to_be32(sizeof(struct ipr_ioadl_desc));
912 ipr_cmd->ioarcb.data_transfer_length = cpu_to_be32(len);
918 * ipr_send_blocking_cmd - Send command and sleep on its completion.
919 * @ipr_cmd: ipr command struct
920 * @timeout_func: function to invoke if command times out
926 static void ipr_send_blocking_cmd(struct ipr_cmnd *ipr_cmd,
927 void (*timeout_func) (struct ipr_cmnd *ipr_cmd),
930 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
932 init_completion(&ipr_cmd->completion);
933 ipr_do_req(ipr_cmd, ipr_internal_cmd_done, timeout_func, timeout);
935 spin_unlock_irq(ioa_cfg->host->host_lock);
936 wait_for_completion(&ipr_cmd->completion);
937 spin_lock_irq(ioa_cfg->host->host_lock);
941 * ipr_send_hcam - Send an HCAM to the adapter.
942 * @ioa_cfg: ioa config struct
944 * @hostrcb: hostrcb struct
946 * This function will send a Host Controlled Async command to the adapter.
947 * If HCAMs are currently not allowed to be issued to the adapter, it will
948 * place the hostrcb on the free queue.
953 static void ipr_send_hcam(struct ipr_ioa_cfg *ioa_cfg, u8 type,
954 struct ipr_hostrcb *hostrcb)
956 struct ipr_cmnd *ipr_cmd;
957 struct ipr_ioarcb *ioarcb;
959 if (ioa_cfg->allow_cmds) {
960 ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg);
961 list_add_tail(&ipr_cmd->queue, &ioa_cfg->pending_q);
962 list_add_tail(&hostrcb->queue, &ioa_cfg->hostrcb_pending_q);
964 ipr_cmd->u.hostrcb = hostrcb;
965 ioarcb = &ipr_cmd->ioarcb;
967 ioarcb->res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE);
968 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_HCAM;
969 ioarcb->cmd_pkt.cdb[0] = IPR_HOST_CONTROLLED_ASYNC;
970 ioarcb->cmd_pkt.cdb[1] = type;
971 ioarcb->cmd_pkt.cdb[7] = (sizeof(hostrcb->hcam) >> 8) & 0xff;
972 ioarcb->cmd_pkt.cdb[8] = sizeof(hostrcb->hcam) & 0xff;
974 ipr_init_ioadl(ipr_cmd, hostrcb->hostrcb_dma,
975 sizeof(hostrcb->hcam), IPR_IOADL_FLAGS_READ_LAST);
977 if (type == IPR_HCAM_CDB_OP_CODE_CONFIG_CHANGE)
978 ipr_cmd->done = ipr_process_ccn;
980 ipr_cmd->done = ipr_process_error;
982 ipr_trc_hook(ipr_cmd, IPR_TRACE_START, IPR_IOA_RES_ADDR);
986 ipr_send_command(ipr_cmd);
988 list_add_tail(&hostrcb->queue, &ioa_cfg->hostrcb_free_q);
993 * ipr_update_ata_class - Update the ata class in the resource entry
994 * @res: resource entry struct
995 * @proto: cfgte device bus protocol value
1000 static void ipr_update_ata_class(struct ipr_resource_entry *res, unsigned int proto)
1003 case IPR_PROTO_SATA:
1004 case IPR_PROTO_SAS_STP:
1005 res->ata_class = ATA_DEV_ATA;
1007 case IPR_PROTO_SATA_ATAPI:
1008 case IPR_PROTO_SAS_STP_ATAPI:
1009 res->ata_class = ATA_DEV_ATAPI;
1012 res->ata_class = ATA_DEV_UNKNOWN;
1018 * ipr_init_res_entry - Initialize a resource entry struct.
1019 * @res: resource entry struct
1020 * @cfgtew: config table entry wrapper struct
1025 static void ipr_init_res_entry(struct ipr_resource_entry *res,
1026 struct ipr_config_table_entry_wrapper *cfgtew)
1030 struct ipr_ioa_cfg *ioa_cfg = res->ioa_cfg;
1031 struct ipr_resource_entry *gscsi_res = NULL;
1033 res->needs_sync_complete = 0;
1036 res->del_from_ml = 0;
1037 res->resetting_device = 0;
1039 res->sata_port = NULL;
1041 if (ioa_cfg->sis64) {
1042 proto = cfgtew->u.cfgte64->proto;
1043 res->res_flags = cfgtew->u.cfgte64->res_flags;
1044 res->qmodel = IPR_QUEUEING_MODEL64(res);
1045 res->type = cfgtew->u.cfgte64->res_type;
1047 memcpy(res->res_path, &cfgtew->u.cfgte64->res_path,
1048 sizeof(res->res_path));
1051 memcpy(&res->dev_lun.scsi_lun, &cfgtew->u.cfgte64->lun,
1052 sizeof(res->dev_lun.scsi_lun));
1053 res->lun = scsilun_to_int(&res->dev_lun);
1055 if (res->type == IPR_RES_TYPE_GENERIC_SCSI) {
1056 list_for_each_entry(gscsi_res, &ioa_cfg->used_res_q, queue) {
1057 if (gscsi_res->dev_id == cfgtew->u.cfgte64->dev_id) {
1059 res->target = gscsi_res->target;
1064 res->target = find_first_zero_bit(ioa_cfg->target_ids,
1065 ioa_cfg->max_devs_supported);
1066 set_bit(res->target, ioa_cfg->target_ids);
1068 } else if (res->type == IPR_RES_TYPE_IOAFP) {
1069 res->bus = IPR_IOAFP_VIRTUAL_BUS;
1071 } else if (res->type == IPR_RES_TYPE_ARRAY) {
1072 res->bus = IPR_ARRAY_VIRTUAL_BUS;
1073 res->target = find_first_zero_bit(ioa_cfg->array_ids,
1074 ioa_cfg->max_devs_supported);
1075 set_bit(res->target, ioa_cfg->array_ids);
1076 } else if (res->type == IPR_RES_TYPE_VOLUME_SET) {
1077 res->bus = IPR_VSET_VIRTUAL_BUS;
1078 res->target = find_first_zero_bit(ioa_cfg->vset_ids,
1079 ioa_cfg->max_devs_supported);
1080 set_bit(res->target, ioa_cfg->vset_ids);
1082 res->target = find_first_zero_bit(ioa_cfg->target_ids,
1083 ioa_cfg->max_devs_supported);
1084 set_bit(res->target, ioa_cfg->target_ids);
1087 proto = cfgtew->u.cfgte->proto;
1088 res->qmodel = IPR_QUEUEING_MODEL(res);
1089 res->flags = cfgtew->u.cfgte->flags;
1090 if (res->flags & IPR_IS_IOA_RESOURCE)
1091 res->type = IPR_RES_TYPE_IOAFP;
1093 res->type = cfgtew->u.cfgte->rsvd_subtype & 0x0f;
1095 res->bus = cfgtew->u.cfgte->res_addr.bus;
1096 res->target = cfgtew->u.cfgte->res_addr.target;
1097 res->lun = cfgtew->u.cfgte->res_addr.lun;
1098 res->lun_wwn = get_unaligned_be64(cfgtew->u.cfgte->lun_wwn);
1101 ipr_update_ata_class(res, proto);
1105 * ipr_is_same_device - Determine if two devices are the same.
1106 * @res: resource entry struct
1107 * @cfgtew: config table entry wrapper struct
1110 * 1 if the devices are the same / 0 otherwise
1112 static int ipr_is_same_device(struct ipr_resource_entry *res,
1113 struct ipr_config_table_entry_wrapper *cfgtew)
1115 if (res->ioa_cfg->sis64) {
1116 if (!memcmp(&res->dev_id, &cfgtew->u.cfgte64->dev_id,
1117 sizeof(cfgtew->u.cfgte64->dev_id)) &&
1118 !memcmp(&res->dev_lun.scsi_lun, &cfgtew->u.cfgte64->lun,
1119 sizeof(cfgtew->u.cfgte64->lun))) {
1123 if (res->bus == cfgtew->u.cfgte->res_addr.bus &&
1124 res->target == cfgtew->u.cfgte->res_addr.target &&
1125 res->lun == cfgtew->u.cfgte->res_addr.lun)
1133 * ipr_format_res_path - Format the resource path for printing.
1134 * @res_path: resource path
1140 static char *ipr_format_res_path(u8 *res_path, char *buffer, int len)
1146 p += snprintf(p, buffer + len - p, "%02X", res_path[0]);
1147 for (i = 1; res_path[i] != 0xff && ((i * 3) < len); i++)
1148 p += snprintf(p, buffer + len - p, "-%02X", res_path[i]);
1154 * ipr_update_res_entry - Update the resource entry.
1155 * @res: resource entry struct
1156 * @cfgtew: config table entry wrapper struct
1161 static void ipr_update_res_entry(struct ipr_resource_entry *res,
1162 struct ipr_config_table_entry_wrapper *cfgtew)
1164 char buffer[IPR_MAX_RES_PATH_LENGTH];
1168 if (res->ioa_cfg->sis64) {
1169 res->flags = cfgtew->u.cfgte64->flags;
1170 res->res_flags = cfgtew->u.cfgte64->res_flags;
1171 res->type = cfgtew->u.cfgte64->res_type;
1173 memcpy(&res->std_inq_data, &cfgtew->u.cfgte64->std_inq_data,
1174 sizeof(struct ipr_std_inq_data));
1176 res->qmodel = IPR_QUEUEING_MODEL64(res);
1177 proto = cfgtew->u.cfgte64->proto;
1178 res->res_handle = cfgtew->u.cfgte64->res_handle;
1179 res->dev_id = cfgtew->u.cfgte64->dev_id;
1181 memcpy(&res->dev_lun.scsi_lun, &cfgtew->u.cfgte64->lun,
1182 sizeof(res->dev_lun.scsi_lun));
1184 if (memcmp(res->res_path, &cfgtew->u.cfgte64->res_path,
1185 sizeof(res->res_path))) {
1186 memcpy(res->res_path, &cfgtew->u.cfgte64->res_path,
1187 sizeof(res->res_path));
1191 if (res->sdev && new_path)
1192 sdev_printk(KERN_INFO, res->sdev, "Resource path: %s\n",
1193 ipr_format_res_path(res->res_path, buffer,
1196 res->flags = cfgtew->u.cfgte->flags;
1197 if (res->flags & IPR_IS_IOA_RESOURCE)
1198 res->type = IPR_RES_TYPE_IOAFP;
1200 res->type = cfgtew->u.cfgte->rsvd_subtype & 0x0f;
1202 memcpy(&res->std_inq_data, &cfgtew->u.cfgte->std_inq_data,
1203 sizeof(struct ipr_std_inq_data));
1205 res->qmodel = IPR_QUEUEING_MODEL(res);
1206 proto = cfgtew->u.cfgte->proto;
1207 res->res_handle = cfgtew->u.cfgte->res_handle;
1210 ipr_update_ata_class(res, proto);
1214 * ipr_clear_res_target - Clear the bit in the bit map representing the target
1216 * @res: resource entry struct
1217 * @cfgtew: config table entry wrapper struct
1222 static void ipr_clear_res_target(struct ipr_resource_entry *res)
1224 struct ipr_resource_entry *gscsi_res = NULL;
1225 struct ipr_ioa_cfg *ioa_cfg = res->ioa_cfg;
1227 if (!ioa_cfg->sis64)
1230 if (res->bus == IPR_ARRAY_VIRTUAL_BUS)
1231 clear_bit(res->target, ioa_cfg->array_ids);
1232 else if (res->bus == IPR_VSET_VIRTUAL_BUS)
1233 clear_bit(res->target, ioa_cfg->vset_ids);
1234 else if (res->bus == 0 && res->type == IPR_RES_TYPE_GENERIC_SCSI) {
1235 list_for_each_entry(gscsi_res, &ioa_cfg->used_res_q, queue)
1236 if (gscsi_res->dev_id == res->dev_id && gscsi_res != res)
1238 clear_bit(res->target, ioa_cfg->target_ids);
1240 } else if (res->bus == 0)
1241 clear_bit(res->target, ioa_cfg->target_ids);
1245 * ipr_handle_config_change - Handle a config change from the adapter
1246 * @ioa_cfg: ioa config struct
1252 static void ipr_handle_config_change(struct ipr_ioa_cfg *ioa_cfg,
1253 struct ipr_hostrcb *hostrcb)
1255 struct ipr_resource_entry *res = NULL;
1256 struct ipr_config_table_entry_wrapper cfgtew;
1257 __be32 cc_res_handle;
1261 if (ioa_cfg->sis64) {
1262 cfgtew.u.cfgte64 = &hostrcb->hcam.u.ccn.u.cfgte64;
1263 cc_res_handle = cfgtew.u.cfgte64->res_handle;
1265 cfgtew.u.cfgte = &hostrcb->hcam.u.ccn.u.cfgte;
1266 cc_res_handle = cfgtew.u.cfgte->res_handle;
1269 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) {
1270 if (res->res_handle == cc_res_handle) {
1277 if (list_empty(&ioa_cfg->free_res_q)) {
1278 ipr_send_hcam(ioa_cfg,
1279 IPR_HCAM_CDB_OP_CODE_CONFIG_CHANGE,
1284 res = list_entry(ioa_cfg->free_res_q.next,
1285 struct ipr_resource_entry, queue);
1287 list_del(&res->queue);
1288 ipr_init_res_entry(res, &cfgtew);
1289 list_add_tail(&res->queue, &ioa_cfg->used_res_q);
1292 ipr_update_res_entry(res, &cfgtew);
1294 if (hostrcb->hcam.notify_type == IPR_HOST_RCB_NOTIF_TYPE_REM_ENTRY) {
1296 res->del_from_ml = 1;
1297 res->res_handle = IPR_INVALID_RES_HANDLE;
1298 if (ioa_cfg->allow_ml_add_del)
1299 schedule_work(&ioa_cfg->work_q);
1301 ipr_clear_res_target(res);
1302 list_move_tail(&res->queue, &ioa_cfg->free_res_q);
1304 } else if (!res->sdev) {
1306 if (ioa_cfg->allow_ml_add_del)
1307 schedule_work(&ioa_cfg->work_q);
1310 ipr_send_hcam(ioa_cfg, IPR_HCAM_CDB_OP_CODE_CONFIG_CHANGE, hostrcb);
1314 * ipr_process_ccn - Op done function for a CCN.
1315 * @ipr_cmd: ipr command struct
1317 * This function is the op done function for a configuration
1318 * change notification host controlled async from the adapter.
1323 static void ipr_process_ccn(struct ipr_cmnd *ipr_cmd)
1325 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
1326 struct ipr_hostrcb *hostrcb = ipr_cmd->u.hostrcb;
1327 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
1329 list_del(&hostrcb->queue);
1330 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
1333 if (ioasc != IPR_IOASC_IOA_WAS_RESET)
1334 dev_err(&ioa_cfg->pdev->dev,
1335 "Host RCB failed with IOASC: 0x%08X\n", ioasc);
1337 ipr_send_hcam(ioa_cfg, IPR_HCAM_CDB_OP_CODE_CONFIG_CHANGE, hostrcb);
1339 ipr_handle_config_change(ioa_cfg, hostrcb);
1344 * strip_and_pad_whitespace - Strip and pad trailing whitespace.
1345 * @i: index into buffer
1346 * @buf: string to modify
1348 * This function will strip all trailing whitespace, pad the end
1349 * of the string with a single space, and NULL terminate the string.
1352 * new length of string
1354 static int strip_and_pad_whitespace(int i, char *buf)
1356 while (i && buf[i] == ' ')
1364 * ipr_log_vpd_compact - Log the passed extended VPD compactly.
1365 * @prefix: string to print at start of printk
1366 * @hostrcb: hostrcb pointer
1367 * @vpd: vendor/product id/sn struct
1372 static void ipr_log_vpd_compact(char *prefix, struct ipr_hostrcb *hostrcb,
1373 struct ipr_vpd *vpd)
1375 char buffer[IPR_VENDOR_ID_LEN + IPR_PROD_ID_LEN + IPR_SERIAL_NUM_LEN + 3];
1378 memcpy(buffer, vpd->vpids.vendor_id, IPR_VENDOR_ID_LEN);
1379 i = strip_and_pad_whitespace(IPR_VENDOR_ID_LEN - 1, buffer);
1381 memcpy(&buffer[i], vpd->vpids.product_id, IPR_PROD_ID_LEN);
1382 i = strip_and_pad_whitespace(i + IPR_PROD_ID_LEN - 1, buffer);
1384 memcpy(&buffer[i], vpd->sn, IPR_SERIAL_NUM_LEN);
1385 buffer[IPR_SERIAL_NUM_LEN + i] = '\0';
1387 ipr_hcam_err(hostrcb, "%s VPID/SN: %s\n", prefix, buffer);
1391 * ipr_log_vpd - Log the passed VPD to the error log.
1392 * @vpd: vendor/product id/sn struct
1397 static void ipr_log_vpd(struct ipr_vpd *vpd)
1399 char buffer[IPR_VENDOR_ID_LEN + IPR_PROD_ID_LEN
1400 + IPR_SERIAL_NUM_LEN];
1402 memcpy(buffer, vpd->vpids.vendor_id, IPR_VENDOR_ID_LEN);
1403 memcpy(buffer + IPR_VENDOR_ID_LEN, vpd->vpids.product_id,
1405 buffer[IPR_VENDOR_ID_LEN + IPR_PROD_ID_LEN] = '\0';
1406 ipr_err("Vendor/Product ID: %s\n", buffer);
1408 memcpy(buffer, vpd->sn, IPR_SERIAL_NUM_LEN);
1409 buffer[IPR_SERIAL_NUM_LEN] = '\0';
1410 ipr_err(" Serial Number: %s\n", buffer);
1414 * ipr_log_ext_vpd_compact - Log the passed extended VPD compactly.
1415 * @prefix: string to print at start of printk
1416 * @hostrcb: hostrcb pointer
1417 * @vpd: vendor/product id/sn/wwn struct
1422 static void ipr_log_ext_vpd_compact(char *prefix, struct ipr_hostrcb *hostrcb,
1423 struct ipr_ext_vpd *vpd)
1425 ipr_log_vpd_compact(prefix, hostrcb, &vpd->vpd);
1426 ipr_hcam_err(hostrcb, "%s WWN: %08X%08X\n", prefix,
1427 be32_to_cpu(vpd->wwid[0]), be32_to_cpu(vpd->wwid[1]));
1431 * ipr_log_ext_vpd - Log the passed extended VPD to the error log.
1432 * @vpd: vendor/product id/sn/wwn struct
1437 static void ipr_log_ext_vpd(struct ipr_ext_vpd *vpd)
1439 ipr_log_vpd(&vpd->vpd);
1440 ipr_err(" WWN: %08X%08X\n", be32_to_cpu(vpd->wwid[0]),
1441 be32_to_cpu(vpd->wwid[1]));
1445 * ipr_log_enhanced_cache_error - Log a cache error.
1446 * @ioa_cfg: ioa config struct
1447 * @hostrcb: hostrcb struct
1452 static void ipr_log_enhanced_cache_error(struct ipr_ioa_cfg *ioa_cfg,
1453 struct ipr_hostrcb *hostrcb)
1455 struct ipr_hostrcb_type_12_error *error;
1458 error = &hostrcb->hcam.u.error64.u.type_12_error;
1460 error = &hostrcb->hcam.u.error.u.type_12_error;
1462 ipr_err("-----Current Configuration-----\n");
1463 ipr_err("Cache Directory Card Information:\n");
1464 ipr_log_ext_vpd(&error->ioa_vpd);
1465 ipr_err("Adapter Card Information:\n");
1466 ipr_log_ext_vpd(&error->cfc_vpd);
1468 ipr_err("-----Expected Configuration-----\n");
1469 ipr_err("Cache Directory Card Information:\n");
1470 ipr_log_ext_vpd(&error->ioa_last_attached_to_cfc_vpd);
1471 ipr_err("Adapter Card Information:\n");
1472 ipr_log_ext_vpd(&error->cfc_last_attached_to_ioa_vpd);
1474 ipr_err("Additional IOA Data: %08X %08X %08X\n",
1475 be32_to_cpu(error->ioa_data[0]),
1476 be32_to_cpu(error->ioa_data[1]),
1477 be32_to_cpu(error->ioa_data[2]));
1481 * ipr_log_cache_error - Log a cache error.
1482 * @ioa_cfg: ioa config struct
1483 * @hostrcb: hostrcb struct
1488 static void ipr_log_cache_error(struct ipr_ioa_cfg *ioa_cfg,
1489 struct ipr_hostrcb *hostrcb)
1491 struct ipr_hostrcb_type_02_error *error =
1492 &hostrcb->hcam.u.error.u.type_02_error;
1494 ipr_err("-----Current Configuration-----\n");
1495 ipr_err("Cache Directory Card Information:\n");
1496 ipr_log_vpd(&error->ioa_vpd);
1497 ipr_err("Adapter Card Information:\n");
1498 ipr_log_vpd(&error->cfc_vpd);
1500 ipr_err("-----Expected Configuration-----\n");
1501 ipr_err("Cache Directory Card Information:\n");
1502 ipr_log_vpd(&error->ioa_last_attached_to_cfc_vpd);
1503 ipr_err("Adapter Card Information:\n");
1504 ipr_log_vpd(&error->cfc_last_attached_to_ioa_vpd);
1506 ipr_err("Additional IOA Data: %08X %08X %08X\n",
1507 be32_to_cpu(error->ioa_data[0]),
1508 be32_to_cpu(error->ioa_data[1]),
1509 be32_to_cpu(error->ioa_data[2]));
1513 * ipr_log_enhanced_config_error - Log a configuration error.
1514 * @ioa_cfg: ioa config struct
1515 * @hostrcb: hostrcb struct
1520 static void ipr_log_enhanced_config_error(struct ipr_ioa_cfg *ioa_cfg,
1521 struct ipr_hostrcb *hostrcb)
1523 int errors_logged, i;
1524 struct ipr_hostrcb_device_data_entry_enhanced *dev_entry;
1525 struct ipr_hostrcb_type_13_error *error;
1527 error = &hostrcb->hcam.u.error.u.type_13_error;
1528 errors_logged = be32_to_cpu(error->errors_logged);
1530 ipr_err("Device Errors Detected/Logged: %d/%d\n",
1531 be32_to_cpu(error->errors_detected), errors_logged);
1533 dev_entry = error->dev;
1535 for (i = 0; i < errors_logged; i++, dev_entry++) {
1538 ipr_phys_res_err(ioa_cfg, dev_entry->dev_res_addr, "Device %d", i + 1);
1539 ipr_log_ext_vpd(&dev_entry->vpd);
1541 ipr_err("-----New Device Information-----\n");
1542 ipr_log_ext_vpd(&dev_entry->new_vpd);
1544 ipr_err("Cache Directory Card Information:\n");
1545 ipr_log_ext_vpd(&dev_entry->ioa_last_with_dev_vpd);
1547 ipr_err("Adapter Card Information:\n");
1548 ipr_log_ext_vpd(&dev_entry->cfc_last_with_dev_vpd);
1553 * ipr_log_sis64_config_error - Log a device error.
1554 * @ioa_cfg: ioa config struct
1555 * @hostrcb: hostrcb struct
1560 static void ipr_log_sis64_config_error(struct ipr_ioa_cfg *ioa_cfg,
1561 struct ipr_hostrcb *hostrcb)
1563 int errors_logged, i;
1564 struct ipr_hostrcb64_device_data_entry_enhanced *dev_entry;
1565 struct ipr_hostrcb_type_23_error *error;
1566 char buffer[IPR_MAX_RES_PATH_LENGTH];
1568 error = &hostrcb->hcam.u.error64.u.type_23_error;
1569 errors_logged = be32_to_cpu(error->errors_logged);
1571 ipr_err("Device Errors Detected/Logged: %d/%d\n",
1572 be32_to_cpu(error->errors_detected), errors_logged);
1574 dev_entry = error->dev;
1576 for (i = 0; i < errors_logged; i++, dev_entry++) {
1579 ipr_err("Device %d : %s", i + 1,
1580 ipr_format_res_path(dev_entry->res_path, buffer,
1582 ipr_log_ext_vpd(&dev_entry->vpd);
1584 ipr_err("-----New Device Information-----\n");
1585 ipr_log_ext_vpd(&dev_entry->new_vpd);
1587 ipr_err("Cache Directory Card Information:\n");
1588 ipr_log_ext_vpd(&dev_entry->ioa_last_with_dev_vpd);
1590 ipr_err("Adapter Card Information:\n");
1591 ipr_log_ext_vpd(&dev_entry->cfc_last_with_dev_vpd);
1596 * ipr_log_config_error - Log a configuration error.
1597 * @ioa_cfg: ioa config struct
1598 * @hostrcb: hostrcb struct
1603 static void ipr_log_config_error(struct ipr_ioa_cfg *ioa_cfg,
1604 struct ipr_hostrcb *hostrcb)
1606 int errors_logged, i;
1607 struct ipr_hostrcb_device_data_entry *dev_entry;
1608 struct ipr_hostrcb_type_03_error *error;
1610 error = &hostrcb->hcam.u.error.u.type_03_error;
1611 errors_logged = be32_to_cpu(error->errors_logged);
1613 ipr_err("Device Errors Detected/Logged: %d/%d\n",
1614 be32_to_cpu(error->errors_detected), errors_logged);
1616 dev_entry = error->dev;
1618 for (i = 0; i < errors_logged; i++, dev_entry++) {
1621 ipr_phys_res_err(ioa_cfg, dev_entry->dev_res_addr, "Device %d", i + 1);
1622 ipr_log_vpd(&dev_entry->vpd);
1624 ipr_err("-----New Device Information-----\n");
1625 ipr_log_vpd(&dev_entry->new_vpd);
1627 ipr_err("Cache Directory Card Information:\n");
1628 ipr_log_vpd(&dev_entry->ioa_last_with_dev_vpd);
1630 ipr_err("Adapter Card Information:\n");
1631 ipr_log_vpd(&dev_entry->cfc_last_with_dev_vpd);
1633 ipr_err("Additional IOA Data: %08X %08X %08X %08X %08X\n",
1634 be32_to_cpu(dev_entry->ioa_data[0]),
1635 be32_to_cpu(dev_entry->ioa_data[1]),
1636 be32_to_cpu(dev_entry->ioa_data[2]),
1637 be32_to_cpu(dev_entry->ioa_data[3]),
1638 be32_to_cpu(dev_entry->ioa_data[4]));
1643 * ipr_log_enhanced_array_error - Log an array configuration error.
1644 * @ioa_cfg: ioa config struct
1645 * @hostrcb: hostrcb struct
1650 static void ipr_log_enhanced_array_error(struct ipr_ioa_cfg *ioa_cfg,
1651 struct ipr_hostrcb *hostrcb)
1654 struct ipr_hostrcb_type_14_error *error;
1655 struct ipr_hostrcb_array_data_entry_enhanced *array_entry;
1656 const u8 zero_sn[IPR_SERIAL_NUM_LEN] = { [0 ... IPR_SERIAL_NUM_LEN-1] = '0' };
1658 error = &hostrcb->hcam.u.error.u.type_14_error;
1662 ipr_err("RAID %s Array Configuration: %d:%d:%d:%d\n",
1663 error->protection_level,
1664 ioa_cfg->host->host_no,
1665 error->last_func_vset_res_addr.bus,
1666 error->last_func_vset_res_addr.target,
1667 error->last_func_vset_res_addr.lun);
1671 array_entry = error->array_member;
1672 num_entries = min_t(u32, be32_to_cpu(error->num_entries),
1673 ARRAY_SIZE(error->array_member));
1675 for (i = 0; i < num_entries; i++, array_entry++) {
1676 if (!memcmp(array_entry->vpd.vpd.sn, zero_sn, IPR_SERIAL_NUM_LEN))
1679 if (be32_to_cpu(error->exposed_mode_adn) == i)
1680 ipr_err("Exposed Array Member %d:\n", i);
1682 ipr_err("Array Member %d:\n", i);
1684 ipr_log_ext_vpd(&array_entry->vpd);
1685 ipr_phys_res_err(ioa_cfg, array_entry->dev_res_addr, "Current Location");
1686 ipr_phys_res_err(ioa_cfg, array_entry->expected_dev_res_addr,
1687 "Expected Location");
1694 * ipr_log_array_error - Log an array configuration error.
1695 * @ioa_cfg: ioa config struct
1696 * @hostrcb: hostrcb struct
1701 static void ipr_log_array_error(struct ipr_ioa_cfg *ioa_cfg,
1702 struct ipr_hostrcb *hostrcb)
1705 struct ipr_hostrcb_type_04_error *error;
1706 struct ipr_hostrcb_array_data_entry *array_entry;
1707 const u8 zero_sn[IPR_SERIAL_NUM_LEN] = { [0 ... IPR_SERIAL_NUM_LEN-1] = '0' };
1709 error = &hostrcb->hcam.u.error.u.type_04_error;
1713 ipr_err("RAID %s Array Configuration: %d:%d:%d:%d\n",
1714 error->protection_level,
1715 ioa_cfg->host->host_no,
1716 error->last_func_vset_res_addr.bus,
1717 error->last_func_vset_res_addr.target,
1718 error->last_func_vset_res_addr.lun);
1722 array_entry = error->array_member;
1724 for (i = 0; i < 18; i++) {
1725 if (!memcmp(array_entry->vpd.sn, zero_sn, IPR_SERIAL_NUM_LEN))
1728 if (be32_to_cpu(error->exposed_mode_adn) == i)
1729 ipr_err("Exposed Array Member %d:\n", i);
1731 ipr_err("Array Member %d:\n", i);
1733 ipr_log_vpd(&array_entry->vpd);
1735 ipr_phys_res_err(ioa_cfg, array_entry->dev_res_addr, "Current Location");
1736 ipr_phys_res_err(ioa_cfg, array_entry->expected_dev_res_addr,
1737 "Expected Location");
1742 array_entry = error->array_member2;
1749 * ipr_log_hex_data - Log additional hex IOA error data.
1750 * @ioa_cfg: ioa config struct
1751 * @data: IOA error data
1757 static void ipr_log_hex_data(struct ipr_ioa_cfg *ioa_cfg, u32 *data, int len)
1764 if (ioa_cfg->log_level <= IPR_DEFAULT_LOG_LEVEL)
1765 len = min_t(int, len, IPR_DEFAULT_MAX_ERROR_DUMP);
1767 for (i = 0; i < len / 4; i += 4) {
1768 ipr_err("%08X: %08X %08X %08X %08X\n", i*4,
1769 be32_to_cpu(data[i]),
1770 be32_to_cpu(data[i+1]),
1771 be32_to_cpu(data[i+2]),
1772 be32_to_cpu(data[i+3]));
1777 * ipr_log_enhanced_dual_ioa_error - Log an enhanced dual adapter error.
1778 * @ioa_cfg: ioa config struct
1779 * @hostrcb: hostrcb struct
1784 static void ipr_log_enhanced_dual_ioa_error(struct ipr_ioa_cfg *ioa_cfg,
1785 struct ipr_hostrcb *hostrcb)
1787 struct ipr_hostrcb_type_17_error *error;
1790 error = &hostrcb->hcam.u.error64.u.type_17_error;
1792 error = &hostrcb->hcam.u.error.u.type_17_error;
1794 error->failure_reason[sizeof(error->failure_reason) - 1] = '\0';
1795 strim(error->failure_reason);
1797 ipr_hcam_err(hostrcb, "%s [PRC: %08X]\n", error->failure_reason,
1798 be32_to_cpu(hostrcb->hcam.u.error.prc));
1799 ipr_log_ext_vpd_compact("Remote IOA", hostrcb, &error->vpd);
1800 ipr_log_hex_data(ioa_cfg, error->data,
1801 be32_to_cpu(hostrcb->hcam.length) -
1802 (offsetof(struct ipr_hostrcb_error, u) +
1803 offsetof(struct ipr_hostrcb_type_17_error, data)));
1807 * ipr_log_dual_ioa_error - Log a dual adapter error.
1808 * @ioa_cfg: ioa config struct
1809 * @hostrcb: hostrcb struct
1814 static void ipr_log_dual_ioa_error(struct ipr_ioa_cfg *ioa_cfg,
1815 struct ipr_hostrcb *hostrcb)
1817 struct ipr_hostrcb_type_07_error *error;
1819 error = &hostrcb->hcam.u.error.u.type_07_error;
1820 error->failure_reason[sizeof(error->failure_reason) - 1] = '\0';
1821 strim(error->failure_reason);
1823 ipr_hcam_err(hostrcb, "%s [PRC: %08X]\n", error->failure_reason,
1824 be32_to_cpu(hostrcb->hcam.u.error.prc));
1825 ipr_log_vpd_compact("Remote IOA", hostrcb, &error->vpd);
1826 ipr_log_hex_data(ioa_cfg, error->data,
1827 be32_to_cpu(hostrcb->hcam.length) -
1828 (offsetof(struct ipr_hostrcb_error, u) +
1829 offsetof(struct ipr_hostrcb_type_07_error, data)));
1832 static const struct {
1835 } path_active_desc[] = {
1836 { IPR_PATH_NO_INFO, "Path" },
1837 { IPR_PATH_ACTIVE, "Active path" },
1838 { IPR_PATH_NOT_ACTIVE, "Inactive path" }
1841 static const struct {
1844 } path_state_desc[] = {
1845 { IPR_PATH_STATE_NO_INFO, "has no path state information available" },
1846 { IPR_PATH_HEALTHY, "is healthy" },
1847 { IPR_PATH_DEGRADED, "is degraded" },
1848 { IPR_PATH_FAILED, "is failed" }
1852 * ipr_log_fabric_path - Log a fabric path error
1853 * @hostrcb: hostrcb struct
1854 * @fabric: fabric descriptor
1859 static void ipr_log_fabric_path(struct ipr_hostrcb *hostrcb,
1860 struct ipr_hostrcb_fabric_desc *fabric)
1863 u8 path_state = fabric->path_state;
1864 u8 active = path_state & IPR_PATH_ACTIVE_MASK;
1865 u8 state = path_state & IPR_PATH_STATE_MASK;
1867 for (i = 0; i < ARRAY_SIZE(path_active_desc); i++) {
1868 if (path_active_desc[i].active != active)
1871 for (j = 0; j < ARRAY_SIZE(path_state_desc); j++) {
1872 if (path_state_desc[j].state != state)
1875 if (fabric->cascaded_expander == 0xff && fabric->phy == 0xff) {
1876 ipr_hcam_err(hostrcb, "%s %s: IOA Port=%d\n",
1877 path_active_desc[i].desc, path_state_desc[j].desc,
1879 } else if (fabric->cascaded_expander == 0xff) {
1880 ipr_hcam_err(hostrcb, "%s %s: IOA Port=%d, Phy=%d\n",
1881 path_active_desc[i].desc, path_state_desc[j].desc,
1882 fabric->ioa_port, fabric->phy);
1883 } else if (fabric->phy == 0xff) {
1884 ipr_hcam_err(hostrcb, "%s %s: IOA Port=%d, Cascade=%d\n",
1885 path_active_desc[i].desc, path_state_desc[j].desc,
1886 fabric->ioa_port, fabric->cascaded_expander);
1888 ipr_hcam_err(hostrcb, "%s %s: IOA Port=%d, Cascade=%d, Phy=%d\n",
1889 path_active_desc[i].desc, path_state_desc[j].desc,
1890 fabric->ioa_port, fabric->cascaded_expander, fabric->phy);
1896 ipr_err("Path state=%02X IOA Port=%d Cascade=%d Phy=%d\n", path_state,
1897 fabric->ioa_port, fabric->cascaded_expander, fabric->phy);
1901 * ipr_log64_fabric_path - Log a fabric path error
1902 * @hostrcb: hostrcb struct
1903 * @fabric: fabric descriptor
1908 static void ipr_log64_fabric_path(struct ipr_hostrcb *hostrcb,
1909 struct ipr_hostrcb64_fabric_desc *fabric)
1912 u8 path_state = fabric->path_state;
1913 u8 active = path_state & IPR_PATH_ACTIVE_MASK;
1914 u8 state = path_state & IPR_PATH_STATE_MASK;
1915 char buffer[IPR_MAX_RES_PATH_LENGTH];
1917 for (i = 0; i < ARRAY_SIZE(path_active_desc); i++) {
1918 if (path_active_desc[i].active != active)
1921 for (j = 0; j < ARRAY_SIZE(path_state_desc); j++) {
1922 if (path_state_desc[j].state != state)
1925 ipr_hcam_err(hostrcb, "%s %s: Resource Path=%s\n",
1926 path_active_desc[i].desc, path_state_desc[j].desc,
1927 ipr_format_res_path(fabric->res_path, buffer,
1933 ipr_err("Path state=%02X Resource Path=%s\n", path_state,
1934 ipr_format_res_path(fabric->res_path, buffer, sizeof(buffer)));
1937 static const struct {
1940 } path_type_desc[] = {
1941 { IPR_PATH_CFG_IOA_PORT, "IOA port" },
1942 { IPR_PATH_CFG_EXP_PORT, "Expander port" },
1943 { IPR_PATH_CFG_DEVICE_PORT, "Device port" },
1944 { IPR_PATH_CFG_DEVICE_LUN, "Device LUN" }
1947 static const struct {
1950 } path_status_desc[] = {
1951 { IPR_PATH_CFG_NO_PROB, "Functional" },
1952 { IPR_PATH_CFG_DEGRADED, "Degraded" },
1953 { IPR_PATH_CFG_FAILED, "Failed" },
1954 { IPR_PATH_CFG_SUSPECT, "Suspect" },
1955 { IPR_PATH_NOT_DETECTED, "Missing" },
1956 { IPR_PATH_INCORRECT_CONN, "Incorrectly connected" }
1959 static const char *link_rate[] = {
1962 "phy reset problem",
1979 * ipr_log_path_elem - Log a fabric path element.
1980 * @hostrcb: hostrcb struct
1981 * @cfg: fabric path element struct
1986 static void ipr_log_path_elem(struct ipr_hostrcb *hostrcb,
1987 struct ipr_hostrcb_config_element *cfg)
1990 u8 type = cfg->type_status & IPR_PATH_CFG_TYPE_MASK;
1991 u8 status = cfg->type_status & IPR_PATH_CFG_STATUS_MASK;
1993 if (type == IPR_PATH_CFG_NOT_EXIST)
1996 for (i = 0; i < ARRAY_SIZE(path_type_desc); i++) {
1997 if (path_type_desc[i].type != type)
2000 for (j = 0; j < ARRAY_SIZE(path_status_desc); j++) {
2001 if (path_status_desc[j].status != status)
2004 if (type == IPR_PATH_CFG_IOA_PORT) {
2005 ipr_hcam_err(hostrcb, "%s %s: Phy=%d, Link rate=%s, WWN=%08X%08X\n",
2006 path_status_desc[j].desc, path_type_desc[i].desc,
2007 cfg->phy, link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK],
2008 be32_to_cpu(cfg->wwid[0]), be32_to_cpu(cfg->wwid[1]));
2010 if (cfg->cascaded_expander == 0xff && cfg->phy == 0xff) {
2011 ipr_hcam_err(hostrcb, "%s %s: Link rate=%s, WWN=%08X%08X\n",
2012 path_status_desc[j].desc, path_type_desc[i].desc,
2013 link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK],
2014 be32_to_cpu(cfg->wwid[0]), be32_to_cpu(cfg->wwid[1]));
2015 } else if (cfg->cascaded_expander == 0xff) {
2016 ipr_hcam_err(hostrcb, "%s %s: Phy=%d, Link rate=%s, "
2017 "WWN=%08X%08X\n", path_status_desc[j].desc,
2018 path_type_desc[i].desc, cfg->phy,
2019 link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK],
2020 be32_to_cpu(cfg->wwid[0]), be32_to_cpu(cfg->wwid[1]));
2021 } else if (cfg->phy == 0xff) {
2022 ipr_hcam_err(hostrcb, "%s %s: Cascade=%d, Link rate=%s, "
2023 "WWN=%08X%08X\n", path_status_desc[j].desc,
2024 path_type_desc[i].desc, cfg->cascaded_expander,
2025 link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK],
2026 be32_to_cpu(cfg->wwid[0]), be32_to_cpu(cfg->wwid[1]));
2028 ipr_hcam_err(hostrcb, "%s %s: Cascade=%d, Phy=%d, Link rate=%s "
2029 "WWN=%08X%08X\n", path_status_desc[j].desc,
2030 path_type_desc[i].desc, cfg->cascaded_expander, cfg->phy,
2031 link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK],
2032 be32_to_cpu(cfg->wwid[0]), be32_to_cpu(cfg->wwid[1]));
2039 ipr_hcam_err(hostrcb, "Path element=%02X: Cascade=%d Phy=%d Link rate=%s "
2040 "WWN=%08X%08X\n", cfg->type_status, cfg->cascaded_expander, cfg->phy,
2041 link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK],
2042 be32_to_cpu(cfg->wwid[0]), be32_to_cpu(cfg->wwid[1]));
2046 * ipr_log64_path_elem - Log a fabric path element.
2047 * @hostrcb: hostrcb struct
2048 * @cfg: fabric path element struct
2053 static void ipr_log64_path_elem(struct ipr_hostrcb *hostrcb,
2054 struct ipr_hostrcb64_config_element *cfg)
2057 u8 desc_id = cfg->descriptor_id & IPR_DESCRIPTOR_MASK;
2058 u8 type = cfg->type_status & IPR_PATH_CFG_TYPE_MASK;
2059 u8 status = cfg->type_status & IPR_PATH_CFG_STATUS_MASK;
2060 char buffer[IPR_MAX_RES_PATH_LENGTH];
2062 if (type == IPR_PATH_CFG_NOT_EXIST || desc_id != IPR_DESCRIPTOR_SIS64)
2065 for (i = 0; i < ARRAY_SIZE(path_type_desc); i++) {
2066 if (path_type_desc[i].type != type)
2069 for (j = 0; j < ARRAY_SIZE(path_status_desc); j++) {
2070 if (path_status_desc[j].status != status)
2073 ipr_hcam_err(hostrcb, "%s %s: Resource Path=%s, Link rate=%s, WWN=%08X%08X\n",
2074 path_status_desc[j].desc, path_type_desc[i].desc,
2075 ipr_format_res_path(cfg->res_path, buffer,
2077 link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK],
2078 be32_to_cpu(cfg->wwid[0]), be32_to_cpu(cfg->wwid[1]));
2082 ipr_hcam_err(hostrcb, "Path element=%02X: Resource Path=%s, Link rate=%s "
2083 "WWN=%08X%08X\n", cfg->type_status,
2084 ipr_format_res_path(cfg->res_path, buffer, sizeof(buffer)),
2085 link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK],
2086 be32_to_cpu(cfg->wwid[0]), be32_to_cpu(cfg->wwid[1]));
2090 * ipr_log_fabric_error - Log a fabric error.
2091 * @ioa_cfg: ioa config struct
2092 * @hostrcb: hostrcb struct
2097 static void ipr_log_fabric_error(struct ipr_ioa_cfg *ioa_cfg,
2098 struct ipr_hostrcb *hostrcb)
2100 struct ipr_hostrcb_type_20_error *error;
2101 struct ipr_hostrcb_fabric_desc *fabric;
2102 struct ipr_hostrcb_config_element *cfg;
2105 error = &hostrcb->hcam.u.error.u.type_20_error;
2106 error->failure_reason[sizeof(error->failure_reason) - 1] = '\0';
2107 ipr_hcam_err(hostrcb, "%s\n", error->failure_reason);
2109 add_len = be32_to_cpu(hostrcb->hcam.length) -
2110 (offsetof(struct ipr_hostrcb_error, u) +
2111 offsetof(struct ipr_hostrcb_type_20_error, desc));
2113 for (i = 0, fabric = error->desc; i < error->num_entries; i++) {
2114 ipr_log_fabric_path(hostrcb, fabric);
2115 for_each_fabric_cfg(fabric, cfg)
2116 ipr_log_path_elem(hostrcb, cfg);
2118 add_len -= be16_to_cpu(fabric->length);
2119 fabric = (struct ipr_hostrcb_fabric_desc *)
2120 ((unsigned long)fabric + be16_to_cpu(fabric->length));
2123 ipr_log_hex_data(ioa_cfg, (u32 *)fabric, add_len);
2127 * ipr_log_sis64_array_error - Log a sis64 array error.
2128 * @ioa_cfg: ioa config struct
2129 * @hostrcb: hostrcb struct
2134 static void ipr_log_sis64_array_error(struct ipr_ioa_cfg *ioa_cfg,
2135 struct ipr_hostrcb *hostrcb)
2138 struct ipr_hostrcb_type_24_error *error;
2139 struct ipr_hostrcb64_array_data_entry *array_entry;
2140 char buffer[IPR_MAX_RES_PATH_LENGTH];
2141 const u8 zero_sn[IPR_SERIAL_NUM_LEN] = { [0 ... IPR_SERIAL_NUM_LEN-1] = '0' };
2143 error = &hostrcb->hcam.u.error64.u.type_24_error;
2147 ipr_err("RAID %s Array Configuration: %s\n",
2148 error->protection_level,
2149 ipr_format_res_path(error->last_res_path, buffer, sizeof(buffer)));
2153 array_entry = error->array_member;
2154 num_entries = min_t(u32, error->num_entries,
2155 ARRAY_SIZE(error->array_member));
2157 for (i = 0; i < num_entries; i++, array_entry++) {
2159 if (!memcmp(array_entry->vpd.vpd.sn, zero_sn, IPR_SERIAL_NUM_LEN))
2162 if (error->exposed_mode_adn == i)
2163 ipr_err("Exposed Array Member %d:\n", i);
2165 ipr_err("Array Member %d:\n", i);
2167 ipr_err("Array Member %d:\n", i);
2168 ipr_log_ext_vpd(&array_entry->vpd);
2169 ipr_err("Current Location: %s\n",
2170 ipr_format_res_path(array_entry->res_path, buffer,
2172 ipr_err("Expected Location: %s\n",
2173 ipr_format_res_path(array_entry->expected_res_path,
2174 buffer, sizeof(buffer)));
2181 * ipr_log_sis64_fabric_error - Log a sis64 fabric error.
2182 * @ioa_cfg: ioa config struct
2183 * @hostrcb: hostrcb struct
2188 static void ipr_log_sis64_fabric_error(struct ipr_ioa_cfg *ioa_cfg,
2189 struct ipr_hostrcb *hostrcb)
2191 struct ipr_hostrcb_type_30_error *error;
2192 struct ipr_hostrcb64_fabric_desc *fabric;
2193 struct ipr_hostrcb64_config_element *cfg;
2196 error = &hostrcb->hcam.u.error64.u.type_30_error;
2198 error->failure_reason[sizeof(error->failure_reason) - 1] = '\0';
2199 ipr_hcam_err(hostrcb, "%s\n", error->failure_reason);
2201 add_len = be32_to_cpu(hostrcb->hcam.length) -
2202 (offsetof(struct ipr_hostrcb64_error, u) +
2203 offsetof(struct ipr_hostrcb_type_30_error, desc));
2205 for (i = 0, fabric = error->desc; i < error->num_entries; i++) {
2206 ipr_log64_fabric_path(hostrcb, fabric);
2207 for_each_fabric_cfg(fabric, cfg)
2208 ipr_log64_path_elem(hostrcb, cfg);
2210 add_len -= be16_to_cpu(fabric->length);
2211 fabric = (struct ipr_hostrcb64_fabric_desc *)
2212 ((unsigned long)fabric + be16_to_cpu(fabric->length));
2215 ipr_log_hex_data(ioa_cfg, (u32 *)fabric, add_len);
2219 * ipr_log_generic_error - Log an adapter error.
2220 * @ioa_cfg: ioa config struct
2221 * @hostrcb: hostrcb struct
2226 static void ipr_log_generic_error(struct ipr_ioa_cfg *ioa_cfg,
2227 struct ipr_hostrcb *hostrcb)
2229 ipr_log_hex_data(ioa_cfg, hostrcb->hcam.u.raw.data,
2230 be32_to_cpu(hostrcb->hcam.length));
2234 * ipr_get_error - Find the specfied IOASC in the ipr_error_table.
2237 * This function will return the index of into the ipr_error_table
2238 * for the specified IOASC. If the IOASC is not in the table,
2239 * 0 will be returned, which points to the entry used for unknown errors.
2242 * index into the ipr_error_table
2244 static u32 ipr_get_error(u32 ioasc)
2248 for (i = 0; i < ARRAY_SIZE(ipr_error_table); i++)
2249 if (ipr_error_table[i].ioasc == (ioasc & IPR_IOASC_IOASC_MASK))
2256 * ipr_handle_log_data - Log an adapter error.
2257 * @ioa_cfg: ioa config struct
2258 * @hostrcb: hostrcb struct
2260 * This function logs an adapter error to the system.
2265 static void ipr_handle_log_data(struct ipr_ioa_cfg *ioa_cfg,
2266 struct ipr_hostrcb *hostrcb)
2271 if (hostrcb->hcam.notify_type != IPR_HOST_RCB_NOTIF_TYPE_ERROR_LOG_ENTRY)
2274 if (hostrcb->hcam.notifications_lost == IPR_HOST_RCB_NOTIFICATIONS_LOST)
2275 dev_err(&ioa_cfg->pdev->dev, "Error notifications lost\n");
2278 ioasc = be32_to_cpu(hostrcb->hcam.u.error64.fd_ioasc);
2280 ioasc = be32_to_cpu(hostrcb->hcam.u.error.fd_ioasc);
2282 if (!ioa_cfg->sis64 && (ioasc == IPR_IOASC_BUS_WAS_RESET ||
2283 ioasc == IPR_IOASC_BUS_WAS_RESET_BY_OTHER)) {
2284 /* Tell the midlayer we had a bus reset so it will handle the UA properly */
2285 scsi_report_bus_reset(ioa_cfg->host,
2286 hostrcb->hcam.u.error.fd_res_addr.bus);
2289 error_index = ipr_get_error(ioasc);
2291 if (!ipr_error_table[error_index].log_hcam)
2294 ipr_hcam_err(hostrcb, "%s\n", ipr_error_table[error_index].error);
2296 /* Set indication we have logged an error */
2297 ioa_cfg->errors_logged++;
2299 if (ioa_cfg->log_level < ipr_error_table[error_index].log_hcam)
2301 if (be32_to_cpu(hostrcb->hcam.length) > sizeof(hostrcb->hcam.u.raw))
2302 hostrcb->hcam.length = cpu_to_be32(sizeof(hostrcb->hcam.u.raw));
2304 switch (hostrcb->hcam.overlay_id) {
2305 case IPR_HOST_RCB_OVERLAY_ID_2:
2306 ipr_log_cache_error(ioa_cfg, hostrcb);
2308 case IPR_HOST_RCB_OVERLAY_ID_3:
2309 ipr_log_config_error(ioa_cfg, hostrcb);
2311 case IPR_HOST_RCB_OVERLAY_ID_4:
2312 case IPR_HOST_RCB_OVERLAY_ID_6:
2313 ipr_log_array_error(ioa_cfg, hostrcb);
2315 case IPR_HOST_RCB_OVERLAY_ID_7:
2316 ipr_log_dual_ioa_error(ioa_cfg, hostrcb);
2318 case IPR_HOST_RCB_OVERLAY_ID_12:
2319 ipr_log_enhanced_cache_error(ioa_cfg, hostrcb);
2321 case IPR_HOST_RCB_OVERLAY_ID_13:
2322 ipr_log_enhanced_config_error(ioa_cfg, hostrcb);
2324 case IPR_HOST_RCB_OVERLAY_ID_14:
2325 case IPR_HOST_RCB_OVERLAY_ID_16:
2326 ipr_log_enhanced_array_error(ioa_cfg, hostrcb);
2328 case IPR_HOST_RCB_OVERLAY_ID_17:
2329 ipr_log_enhanced_dual_ioa_error(ioa_cfg, hostrcb);
2331 case IPR_HOST_RCB_OVERLAY_ID_20:
2332 ipr_log_fabric_error(ioa_cfg, hostrcb);
2334 case IPR_HOST_RCB_OVERLAY_ID_23:
2335 ipr_log_sis64_config_error(ioa_cfg, hostrcb);
2337 case IPR_HOST_RCB_OVERLAY_ID_24:
2338 case IPR_HOST_RCB_OVERLAY_ID_26:
2339 ipr_log_sis64_array_error(ioa_cfg, hostrcb);
2341 case IPR_HOST_RCB_OVERLAY_ID_30:
2342 ipr_log_sis64_fabric_error(ioa_cfg, hostrcb);
2344 case IPR_HOST_RCB_OVERLAY_ID_1:
2345 case IPR_HOST_RCB_OVERLAY_ID_DEFAULT:
2347 ipr_log_generic_error(ioa_cfg, hostrcb);
2353 * ipr_process_error - Op done function for an adapter error log.
2354 * @ipr_cmd: ipr command struct
2356 * This function is the op done function for an error log host
2357 * controlled async from the adapter. It will log the error and
2358 * send the HCAM back to the adapter.
2363 static void ipr_process_error(struct ipr_cmnd *ipr_cmd)
2365 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
2366 struct ipr_hostrcb *hostrcb = ipr_cmd->u.hostrcb;
2367 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
2371 fd_ioasc = be32_to_cpu(hostrcb->hcam.u.error64.fd_ioasc);
2373 fd_ioasc = be32_to_cpu(hostrcb->hcam.u.error.fd_ioasc);
2375 list_del(&hostrcb->queue);
2376 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
2379 ipr_handle_log_data(ioa_cfg, hostrcb);
2380 if (fd_ioasc == IPR_IOASC_NR_IOA_RESET_REQUIRED)
2381 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_ABBREV);
2382 } else if (ioasc != IPR_IOASC_IOA_WAS_RESET) {
2383 dev_err(&ioa_cfg->pdev->dev,
2384 "Host RCB failed with IOASC: 0x%08X\n", ioasc);
2387 ipr_send_hcam(ioa_cfg, IPR_HCAM_CDB_OP_CODE_LOG_DATA, hostrcb);
2391 * ipr_timeout - An internally generated op has timed out.
2392 * @ipr_cmd: ipr command struct
2394 * This function blocks host requests and initiates an
2400 static void ipr_timeout(struct ipr_cmnd *ipr_cmd)
2402 unsigned long lock_flags = 0;
2403 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
2406 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
2408 ioa_cfg->errors_logged++;
2409 dev_err(&ioa_cfg->pdev->dev,
2410 "Adapter being reset due to command timeout.\n");
2412 if (WAIT_FOR_DUMP == ioa_cfg->sdt_state)
2413 ioa_cfg->sdt_state = GET_DUMP;
2415 if (!ioa_cfg->in_reset_reload || ioa_cfg->reset_cmd == ipr_cmd)
2416 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
2418 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
2423 * ipr_oper_timeout - Adapter timed out transitioning to operational
2424 * @ipr_cmd: ipr command struct
2426 * This function blocks host requests and initiates an
2432 static void ipr_oper_timeout(struct ipr_cmnd *ipr_cmd)
2434 unsigned long lock_flags = 0;
2435 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
2438 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
2440 ioa_cfg->errors_logged++;
2441 dev_err(&ioa_cfg->pdev->dev,
2442 "Adapter timed out transitioning to operational.\n");
2444 if (WAIT_FOR_DUMP == ioa_cfg->sdt_state)
2445 ioa_cfg->sdt_state = GET_DUMP;
2447 if (!ioa_cfg->in_reset_reload || ioa_cfg->reset_cmd == ipr_cmd) {
2449 ioa_cfg->reset_retries += IPR_NUM_RESET_RELOAD_RETRIES;
2450 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
2453 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
2458 * ipr_reset_reload - Reset/Reload the IOA
2459 * @ioa_cfg: ioa config struct
2460 * @shutdown_type: shutdown type
2462 * This function resets the adapter and re-initializes it.
2463 * This function assumes that all new host commands have been stopped.
2467 static int ipr_reset_reload(struct ipr_ioa_cfg *ioa_cfg,
2468 enum ipr_shutdown_type shutdown_type)
2470 if (!ioa_cfg->in_reset_reload)
2471 ipr_initiate_ioa_reset(ioa_cfg, shutdown_type);
2473 spin_unlock_irq(ioa_cfg->host->host_lock);
2474 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
2475 spin_lock_irq(ioa_cfg->host->host_lock);
2477 /* If we got hit with a host reset while we were already resetting
2478 the adapter for some reason, and the reset failed. */
2479 if (ioa_cfg->ioa_is_dead) {
2488 * ipr_find_ses_entry - Find matching SES in SES table
2489 * @res: resource entry struct of SES
2492 * pointer to SES table entry / NULL on failure
2494 static const struct ipr_ses_table_entry *
2495 ipr_find_ses_entry(struct ipr_resource_entry *res)
2498 struct ipr_std_inq_vpids *vpids;
2499 const struct ipr_ses_table_entry *ste = ipr_ses_table;
2501 for (i = 0; i < ARRAY_SIZE(ipr_ses_table); i++, ste++) {
2502 for (j = 0, matches = 0; j < IPR_PROD_ID_LEN; j++) {
2503 if (ste->compare_product_id_byte[j] == 'X') {
2504 vpids = &res->std_inq_data.vpids;
2505 if (vpids->product_id[j] == ste->product_id[j])
2513 if (matches == IPR_PROD_ID_LEN)
2521 * ipr_get_max_scsi_speed - Determine max SCSI speed for a given bus
2522 * @ioa_cfg: ioa config struct
2524 * @bus_width: bus width
2527 * SCSI bus speed in units of 100KHz, 1600 is 160 MHz
2528 * For a 2-byte wide SCSI bus, the maximum transfer speed is
2529 * twice the maximum transfer rate (e.g. for a wide enabled bus,
2530 * max 160MHz = max 320MB/sec).
2532 static u32 ipr_get_max_scsi_speed(struct ipr_ioa_cfg *ioa_cfg, u8 bus, u8 bus_width)
2534 struct ipr_resource_entry *res;
2535 const struct ipr_ses_table_entry *ste;
2536 u32 max_xfer_rate = IPR_MAX_SCSI_RATE(bus_width);
2538 /* Loop through each config table entry in the config table buffer */
2539 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) {
2540 if (!(IPR_IS_SES_DEVICE(res->std_inq_data)))
2543 if (bus != res->bus)
2546 if (!(ste = ipr_find_ses_entry(res)))
2549 max_xfer_rate = (ste->max_bus_speed_limit * 10) / (bus_width / 8);
2552 return max_xfer_rate;
2556 * ipr_wait_iodbg_ack - Wait for an IODEBUG ACK from the IOA
2557 * @ioa_cfg: ioa config struct
2558 * @max_delay: max delay in micro-seconds to wait
2560 * Waits for an IODEBUG ACK from the IOA, doing busy looping.
2563 * 0 on success / other on failure
2565 static int ipr_wait_iodbg_ack(struct ipr_ioa_cfg *ioa_cfg, int max_delay)
2567 volatile u32 pcii_reg;
2570 /* Read interrupt reg until IOA signals IO Debug Acknowledge */
2571 while (delay < max_delay) {
2572 pcii_reg = readl(ioa_cfg->regs.sense_interrupt_reg);
2574 if (pcii_reg & IPR_PCII_IO_DEBUG_ACKNOWLEDGE)
2577 /* udelay cannot be used if delay is more than a few milliseconds */
2578 if ((delay / 1000) > MAX_UDELAY_MS)
2579 mdelay(delay / 1000);
2589 * ipr_get_sis64_dump_data_section - Dump IOA memory
2590 * @ioa_cfg: ioa config struct
2591 * @start_addr: adapter address to dump
2592 * @dest: destination kernel buffer
2593 * @length_in_words: length to dump in 4 byte words
2598 static int ipr_get_sis64_dump_data_section(struct ipr_ioa_cfg *ioa_cfg,
2600 __be32 *dest, u32 length_in_words)
2604 for (i = 0; i < length_in_words; i++) {
2605 writel(start_addr+(i*4), ioa_cfg->regs.dump_addr_reg);
2606 *dest = cpu_to_be32(readl(ioa_cfg->regs.dump_data_reg));
2614 * ipr_get_ldump_data_section - Dump IOA memory
2615 * @ioa_cfg: ioa config struct
2616 * @start_addr: adapter address to dump
2617 * @dest: destination kernel buffer
2618 * @length_in_words: length to dump in 4 byte words
2621 * 0 on success / -EIO on failure
2623 static int ipr_get_ldump_data_section(struct ipr_ioa_cfg *ioa_cfg,
2625 __be32 *dest, u32 length_in_words)
2627 volatile u32 temp_pcii_reg;
2631 return ipr_get_sis64_dump_data_section(ioa_cfg, start_addr,
2632 dest, length_in_words);
2634 /* Write IOA interrupt reg starting LDUMP state */
2635 writel((IPR_UPROCI_RESET_ALERT | IPR_UPROCI_IO_DEBUG_ALERT),
2636 ioa_cfg->regs.set_uproc_interrupt_reg32);
2638 /* Wait for IO debug acknowledge */
2639 if (ipr_wait_iodbg_ack(ioa_cfg,
2640 IPR_LDUMP_MAX_LONG_ACK_DELAY_IN_USEC)) {
2641 dev_err(&ioa_cfg->pdev->dev,
2642 "IOA dump long data transfer timeout\n");
2646 /* Signal LDUMP interlocked - clear IO debug ack */
2647 writel(IPR_PCII_IO_DEBUG_ACKNOWLEDGE,
2648 ioa_cfg->regs.clr_interrupt_reg);
2650 /* Write Mailbox with starting address */
2651 writel(start_addr, ioa_cfg->ioa_mailbox);
2653 /* Signal address valid - clear IOA Reset alert */
2654 writel(IPR_UPROCI_RESET_ALERT,
2655 ioa_cfg->regs.clr_uproc_interrupt_reg32);
2657 for (i = 0; i < length_in_words; i++) {
2658 /* Wait for IO debug acknowledge */
2659 if (ipr_wait_iodbg_ack(ioa_cfg,
2660 IPR_LDUMP_MAX_SHORT_ACK_DELAY_IN_USEC)) {
2661 dev_err(&ioa_cfg->pdev->dev,
2662 "IOA dump short data transfer timeout\n");
2666 /* Read data from mailbox and increment destination pointer */
2667 *dest = cpu_to_be32(readl(ioa_cfg->ioa_mailbox));
2670 /* For all but the last word of data, signal data received */
2671 if (i < (length_in_words - 1)) {
2672 /* Signal dump data received - Clear IO debug Ack */
2673 writel(IPR_PCII_IO_DEBUG_ACKNOWLEDGE,
2674 ioa_cfg->regs.clr_interrupt_reg);
2678 /* Signal end of block transfer. Set reset alert then clear IO debug ack */
2679 writel(IPR_UPROCI_RESET_ALERT,
2680 ioa_cfg->regs.set_uproc_interrupt_reg32);
2682 writel(IPR_UPROCI_IO_DEBUG_ALERT,
2683 ioa_cfg->regs.clr_uproc_interrupt_reg32);
2685 /* Signal dump data received - Clear IO debug Ack */
2686 writel(IPR_PCII_IO_DEBUG_ACKNOWLEDGE,
2687 ioa_cfg->regs.clr_interrupt_reg);
2689 /* Wait for IOA to signal LDUMP exit - IOA reset alert will be cleared */
2690 while (delay < IPR_LDUMP_MAX_SHORT_ACK_DELAY_IN_USEC) {
2692 readl(ioa_cfg->regs.sense_uproc_interrupt_reg32);
2694 if (!(temp_pcii_reg & IPR_UPROCI_RESET_ALERT))
2704 #ifdef CONFIG_SCSI_IPR_DUMP
2706 * ipr_sdt_copy - Copy Smart Dump Table to kernel buffer
2707 * @ioa_cfg: ioa config struct
2708 * @pci_address: adapter address
2709 * @length: length of data to copy
2711 * Copy data from PCI adapter to kernel buffer.
2712 * Note: length MUST be a 4 byte multiple
2714 * 0 on success / other on failure
2716 static int ipr_sdt_copy(struct ipr_ioa_cfg *ioa_cfg,
2717 unsigned long pci_address, u32 length)
2719 int bytes_copied = 0;
2720 int cur_len, rc, rem_len, rem_page_len;
2722 unsigned long lock_flags = 0;
2723 struct ipr_ioa_dump *ioa_dump = &ioa_cfg->dump->ioa_dump;
2725 while (bytes_copied < length &&
2726 (ioa_dump->hdr.len + bytes_copied) < IPR_MAX_IOA_DUMP_SIZE) {
2727 if (ioa_dump->page_offset >= PAGE_SIZE ||
2728 ioa_dump->page_offset == 0) {
2729 page = (__be32 *)__get_free_page(GFP_ATOMIC);
2733 return bytes_copied;
2736 ioa_dump->page_offset = 0;
2737 ioa_dump->ioa_data[ioa_dump->next_page_index] = page;
2738 ioa_dump->next_page_index++;
2740 page = ioa_dump->ioa_data[ioa_dump->next_page_index - 1];
2742 rem_len = length - bytes_copied;
2743 rem_page_len = PAGE_SIZE - ioa_dump->page_offset;
2744 cur_len = min(rem_len, rem_page_len);
2746 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
2747 if (ioa_cfg->sdt_state == ABORT_DUMP) {
2750 rc = ipr_get_ldump_data_section(ioa_cfg,
2751 pci_address + bytes_copied,
2752 &page[ioa_dump->page_offset / 4],
2753 (cur_len / sizeof(u32)));
2755 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
2758 ioa_dump->page_offset += cur_len;
2759 bytes_copied += cur_len;
2767 return bytes_copied;
2771 * ipr_init_dump_entry_hdr - Initialize a dump entry header.
2772 * @hdr: dump entry header struct
2777 static void ipr_init_dump_entry_hdr(struct ipr_dump_entry_header *hdr)
2779 hdr->eye_catcher = IPR_DUMP_EYE_CATCHER;
2781 hdr->offset = sizeof(*hdr);
2782 hdr->status = IPR_DUMP_STATUS_SUCCESS;
2786 * ipr_dump_ioa_type_data - Fill in the adapter type in the dump.
2787 * @ioa_cfg: ioa config struct
2788 * @driver_dump: driver dump struct
2793 static void ipr_dump_ioa_type_data(struct ipr_ioa_cfg *ioa_cfg,
2794 struct ipr_driver_dump *driver_dump)
2796 struct ipr_inquiry_page3 *ucode_vpd = &ioa_cfg->vpd_cbs->page3_data;
2798 ipr_init_dump_entry_hdr(&driver_dump->ioa_type_entry.hdr);
2799 driver_dump->ioa_type_entry.hdr.len =
2800 sizeof(struct ipr_dump_ioa_type_entry) -
2801 sizeof(struct ipr_dump_entry_header);
2802 driver_dump->ioa_type_entry.hdr.data_type = IPR_DUMP_DATA_TYPE_BINARY;
2803 driver_dump->ioa_type_entry.hdr.id = IPR_DUMP_DRIVER_TYPE_ID;
2804 driver_dump->ioa_type_entry.type = ioa_cfg->type;
2805 driver_dump->ioa_type_entry.fw_version = (ucode_vpd->major_release << 24) |
2806 (ucode_vpd->card_type << 16) | (ucode_vpd->minor_release[0] << 8) |
2807 ucode_vpd->minor_release[1];
2808 driver_dump->hdr.num_entries++;
2812 * ipr_dump_version_data - Fill in the driver version in the dump.
2813 * @ioa_cfg: ioa config struct
2814 * @driver_dump: driver dump struct
2819 static void ipr_dump_version_data(struct ipr_ioa_cfg *ioa_cfg,
2820 struct ipr_driver_dump *driver_dump)
2822 ipr_init_dump_entry_hdr(&driver_dump->version_entry.hdr);
2823 driver_dump->version_entry.hdr.len =
2824 sizeof(struct ipr_dump_version_entry) -
2825 sizeof(struct ipr_dump_entry_header);
2826 driver_dump->version_entry.hdr.data_type = IPR_DUMP_DATA_TYPE_ASCII;
2827 driver_dump->version_entry.hdr.id = IPR_DUMP_DRIVER_VERSION_ID;
2828 strcpy(driver_dump->version_entry.version, IPR_DRIVER_VERSION);
2829 driver_dump->hdr.num_entries++;
2833 * ipr_dump_trace_data - Fill in the IOA trace in the dump.
2834 * @ioa_cfg: ioa config struct
2835 * @driver_dump: driver dump struct
2840 static void ipr_dump_trace_data(struct ipr_ioa_cfg *ioa_cfg,
2841 struct ipr_driver_dump *driver_dump)
2843 ipr_init_dump_entry_hdr(&driver_dump->trace_entry.hdr);
2844 driver_dump->trace_entry.hdr.len =
2845 sizeof(struct ipr_dump_trace_entry) -
2846 sizeof(struct ipr_dump_entry_header);
2847 driver_dump->trace_entry.hdr.data_type = IPR_DUMP_DATA_TYPE_BINARY;
2848 driver_dump->trace_entry.hdr.id = IPR_DUMP_TRACE_ID;
2849 memcpy(driver_dump->trace_entry.trace, ioa_cfg->trace, IPR_TRACE_SIZE);
2850 driver_dump->hdr.num_entries++;
2854 * ipr_dump_location_data - Fill in the IOA location in the dump.
2855 * @ioa_cfg: ioa config struct
2856 * @driver_dump: driver dump struct
2861 static void ipr_dump_location_data(struct ipr_ioa_cfg *ioa_cfg,
2862 struct ipr_driver_dump *driver_dump)
2864 ipr_init_dump_entry_hdr(&driver_dump->location_entry.hdr);
2865 driver_dump->location_entry.hdr.len =
2866 sizeof(struct ipr_dump_location_entry) -
2867 sizeof(struct ipr_dump_entry_header);
2868 driver_dump->location_entry.hdr.data_type = IPR_DUMP_DATA_TYPE_ASCII;
2869 driver_dump->location_entry.hdr.id = IPR_DUMP_LOCATION_ID;
2870 strcpy(driver_dump->location_entry.location, dev_name(&ioa_cfg->pdev->dev));
2871 driver_dump->hdr.num_entries++;
2875 * ipr_get_ioa_dump - Perform a dump of the driver and adapter.
2876 * @ioa_cfg: ioa config struct
2877 * @dump: dump struct
2882 static void ipr_get_ioa_dump(struct ipr_ioa_cfg *ioa_cfg, struct ipr_dump *dump)
2884 unsigned long start_addr, sdt_word;
2885 unsigned long lock_flags = 0;
2886 struct ipr_driver_dump *driver_dump = &dump->driver_dump;
2887 struct ipr_ioa_dump *ioa_dump = &dump->ioa_dump;
2888 u32 num_entries, start_off, end_off;
2889 u32 bytes_to_copy, bytes_copied, rc;
2890 struct ipr_sdt *sdt;
2896 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
2898 if (ioa_cfg->sdt_state != GET_DUMP) {
2899 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
2903 if (ioa_cfg->sis64) {
2904 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
2905 ssleep(IPR_DUMP_DELAY_SECONDS);
2906 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
2909 start_addr = readl(ioa_cfg->ioa_mailbox);
2911 if (!ioa_cfg->sis64 && !ipr_sdt_is_fmt2(start_addr)) {
2912 dev_err(&ioa_cfg->pdev->dev,
2913 "Invalid dump table format: %lx\n", start_addr);
2914 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
2918 dev_err(&ioa_cfg->pdev->dev, "Dump of IOA initiated\n");
2920 driver_dump->hdr.eye_catcher = IPR_DUMP_EYE_CATCHER;
2922 /* Initialize the overall dump header */
2923 driver_dump->hdr.len = sizeof(struct ipr_driver_dump);
2924 driver_dump->hdr.num_entries = 1;
2925 driver_dump->hdr.first_entry_offset = sizeof(struct ipr_dump_header);
2926 driver_dump->hdr.status = IPR_DUMP_STATUS_SUCCESS;
2927 driver_dump->hdr.os = IPR_DUMP_OS_LINUX;
2928 driver_dump->hdr.driver_name = IPR_DUMP_DRIVER_NAME;
2930 ipr_dump_version_data(ioa_cfg, driver_dump);
2931 ipr_dump_location_data(ioa_cfg, driver_dump);
2932 ipr_dump_ioa_type_data(ioa_cfg, driver_dump);
2933 ipr_dump_trace_data(ioa_cfg, driver_dump);
2935 /* Update dump_header */
2936 driver_dump->hdr.len += sizeof(struct ipr_dump_entry_header);
2938 /* IOA Dump entry */
2939 ipr_init_dump_entry_hdr(&ioa_dump->hdr);
2940 ioa_dump->hdr.len = 0;
2941 ioa_dump->hdr.data_type = IPR_DUMP_DATA_TYPE_BINARY;
2942 ioa_dump->hdr.id = IPR_DUMP_IOA_DUMP_ID;
2944 /* First entries in sdt are actually a list of dump addresses and
2945 lengths to gather the real dump data. sdt represents the pointer
2946 to the ioa generated dump table. Dump data will be extracted based
2947 on entries in this table */
2948 sdt = &ioa_dump->sdt;
2950 rc = ipr_get_ldump_data_section(ioa_cfg, start_addr, (__be32 *)sdt,
2951 sizeof(struct ipr_sdt) / sizeof(__be32));
2953 /* Smart Dump table is ready to use and the first entry is valid */
2954 if (rc || ((be32_to_cpu(sdt->hdr.state) != IPR_FMT3_SDT_READY_TO_USE) &&
2955 (be32_to_cpu(sdt->hdr.state) != IPR_FMT2_SDT_READY_TO_USE))) {
2956 dev_err(&ioa_cfg->pdev->dev,
2957 "Dump of IOA failed. Dump table not valid: %d, %X.\n",
2958 rc, be32_to_cpu(sdt->hdr.state));
2959 driver_dump->hdr.status = IPR_DUMP_STATUS_FAILED;
2960 ioa_cfg->sdt_state = DUMP_OBTAINED;
2961 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
2965 num_entries = be32_to_cpu(sdt->hdr.num_entries_used);
2967 if (num_entries > IPR_NUM_SDT_ENTRIES)
2968 num_entries = IPR_NUM_SDT_ENTRIES;
2970 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
2972 for (i = 0; i < num_entries; i++) {
2973 if (ioa_dump->hdr.len > IPR_MAX_IOA_DUMP_SIZE) {
2974 driver_dump->hdr.status = IPR_DUMP_STATUS_QUAL_SUCCESS;
2978 if (sdt->entry[i].flags & IPR_SDT_VALID_ENTRY) {
2979 sdt_word = be32_to_cpu(sdt->entry[i].start_token);
2981 bytes_to_copy = be32_to_cpu(sdt->entry[i].end_token);
2983 start_off = sdt_word & IPR_FMT2_MBX_ADDR_MASK;
2984 end_off = be32_to_cpu(sdt->entry[i].end_token);
2986 if (ipr_sdt_is_fmt2(sdt_word) && sdt_word)
2987 bytes_to_copy = end_off - start_off;
2992 if (bytes_to_copy > IPR_MAX_IOA_DUMP_SIZE) {
2993 sdt->entry[i].flags &= ~IPR_SDT_VALID_ENTRY;
2997 /* Copy data from adapter to driver buffers */
2998 bytes_copied = ipr_sdt_copy(ioa_cfg, sdt_word,
3001 ioa_dump->hdr.len += bytes_copied;
3003 if (bytes_copied != bytes_to_copy) {
3004 driver_dump->hdr.status = IPR_DUMP_STATUS_QUAL_SUCCESS;
3011 dev_err(&ioa_cfg->pdev->dev, "Dump of IOA completed.\n");
3013 /* Update dump_header */
3014 driver_dump->hdr.len += ioa_dump->hdr.len;
3016 ioa_cfg->sdt_state = DUMP_OBTAINED;
3021 #define ipr_get_ioa_dump(ioa_cfg, dump) do { } while(0)
3025 * ipr_release_dump - Free adapter dump memory
3026 * @kref: kref struct
3031 static void ipr_release_dump(struct kref *kref)
3033 struct ipr_dump *dump = container_of(kref,struct ipr_dump,kref);
3034 struct ipr_ioa_cfg *ioa_cfg = dump->ioa_cfg;
3035 unsigned long lock_flags = 0;
3039 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3040 ioa_cfg->dump = NULL;
3041 ioa_cfg->sdt_state = INACTIVE;
3042 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3044 for (i = 0; i < dump->ioa_dump.next_page_index; i++)
3045 free_page((unsigned long) dump->ioa_dump.ioa_data[i]);
3052 * ipr_worker_thread - Worker thread
3053 * @work: ioa config struct
3055 * Called at task level from a work thread. This function takes care
3056 * of adding and removing device from the mid-layer as configuration
3057 * changes are detected by the adapter.
3062 static void ipr_worker_thread(struct work_struct *work)
3064 unsigned long lock_flags;
3065 struct ipr_resource_entry *res;
3066 struct scsi_device *sdev;
3067 struct ipr_dump *dump;
3068 struct ipr_ioa_cfg *ioa_cfg =
3069 container_of(work, struct ipr_ioa_cfg, work_q);
3070 u8 bus, target, lun;
3074 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3076 if (ioa_cfg->sdt_state == GET_DUMP) {
3077 dump = ioa_cfg->dump;
3079 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3082 kref_get(&dump->kref);
3083 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3084 ipr_get_ioa_dump(ioa_cfg, dump);
3085 kref_put(&dump->kref, ipr_release_dump);
3087 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3088 if (ioa_cfg->sdt_state == DUMP_OBTAINED)
3089 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
3090 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3097 if (!ioa_cfg->allow_cmds || !ioa_cfg->allow_ml_add_del) {
3098 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3102 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) {
3103 if (res->del_from_ml && res->sdev) {
3106 if (!scsi_device_get(sdev)) {
3107 list_move_tail(&res->queue, &ioa_cfg->free_res_q);
3108 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3109 scsi_remove_device(sdev);
3110 scsi_device_put(sdev);
3111 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3118 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) {
3119 if (res->add_to_ml) {
3121 target = res->target;
3124 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3125 scsi_add_device(ioa_cfg->host, bus, target, lun);
3126 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3131 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3132 kobject_uevent(&ioa_cfg->host->shost_dev.kobj, KOBJ_CHANGE);
3136 #ifdef CONFIG_SCSI_IPR_TRACE
3138 * ipr_read_trace - Dump the adapter trace
3139 * @filp: open sysfs file
3140 * @kobj: kobject struct
3141 * @bin_attr: bin_attribute struct
3144 * @count: buffer size
3147 * number of bytes printed to buffer
3149 static ssize_t ipr_read_trace(struct file *filp, struct kobject *kobj,
3150 struct bin_attribute *bin_attr,
3151 char *buf, loff_t off, size_t count)
3153 struct device *dev = container_of(kobj, struct device, kobj);
3154 struct Scsi_Host *shost = class_to_shost(dev);
3155 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
3156 unsigned long lock_flags = 0;
3159 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3160 ret = memory_read_from_buffer(buf, count, &off, ioa_cfg->trace,
3162 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3167 static struct bin_attribute ipr_trace_attr = {
3173 .read = ipr_read_trace,
3178 * ipr_show_fw_version - Show the firmware version
3179 * @dev: class device struct
3183 * number of bytes printed to buffer
3185 static ssize_t ipr_show_fw_version(struct device *dev,
3186 struct device_attribute *attr, char *buf)
3188 struct Scsi_Host *shost = class_to_shost(dev);
3189 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
3190 struct ipr_inquiry_page3 *ucode_vpd = &ioa_cfg->vpd_cbs->page3_data;
3191 unsigned long lock_flags = 0;
3194 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3195 len = snprintf(buf, PAGE_SIZE, "%02X%02X%02X%02X\n",
3196 ucode_vpd->major_release, ucode_vpd->card_type,
3197 ucode_vpd->minor_release[0],
3198 ucode_vpd->minor_release[1]);
3199 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3203 static struct device_attribute ipr_fw_version_attr = {
3205 .name = "fw_version",
3208 .show = ipr_show_fw_version,
3212 * ipr_show_log_level - Show the adapter's error logging level
3213 * @dev: class device struct
3217 * number of bytes printed to buffer
3219 static ssize_t ipr_show_log_level(struct device *dev,
3220 struct device_attribute *attr, char *buf)
3222 struct Scsi_Host *shost = class_to_shost(dev);
3223 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
3224 unsigned long lock_flags = 0;
3227 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3228 len = snprintf(buf, PAGE_SIZE, "%d\n", ioa_cfg->log_level);
3229 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3234 * ipr_store_log_level - Change the adapter's error logging level
3235 * @dev: class device struct
3239 * number of bytes printed to buffer
3241 static ssize_t ipr_store_log_level(struct device *dev,
3242 struct device_attribute *attr,
3243 const char *buf, size_t count)
3245 struct Scsi_Host *shost = class_to_shost(dev);
3246 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
3247 unsigned long lock_flags = 0;
3249 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3250 ioa_cfg->log_level = simple_strtoul(buf, NULL, 10);
3251 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3255 static struct device_attribute ipr_log_level_attr = {
3257 .name = "log_level",
3258 .mode = S_IRUGO | S_IWUSR,
3260 .show = ipr_show_log_level,
3261 .store = ipr_store_log_level
3265 * ipr_store_diagnostics - IOA Diagnostics interface
3266 * @dev: device struct
3268 * @count: buffer size
3270 * This function will reset the adapter and wait a reasonable
3271 * amount of time for any errors that the adapter might log.
3274 * count on success / other on failure
3276 static ssize_t ipr_store_diagnostics(struct device *dev,
3277 struct device_attribute *attr,
3278 const char *buf, size_t count)
3280 struct Scsi_Host *shost = class_to_shost(dev);
3281 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
3282 unsigned long lock_flags = 0;
3285 if (!capable(CAP_SYS_ADMIN))
3288 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3289 while(ioa_cfg->in_reset_reload) {
3290 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3291 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
3292 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3295 ioa_cfg->errors_logged = 0;
3296 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NORMAL);
3298 if (ioa_cfg->in_reset_reload) {
3299 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3300 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
3302 /* Wait for a second for any errors to be logged */
3305 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3309 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3310 if (ioa_cfg->in_reset_reload || ioa_cfg->errors_logged)
3312 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3317 static struct device_attribute ipr_diagnostics_attr = {
3319 .name = "run_diagnostics",
3322 .store = ipr_store_diagnostics
3326 * ipr_show_adapter_state - Show the adapter's state
3327 * @class_dev: device struct
3331 * number of bytes printed to buffer
3333 static ssize_t ipr_show_adapter_state(struct device *dev,
3334 struct device_attribute *attr, char *buf)
3336 struct Scsi_Host *shost = class_to_shost(dev);
3337 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
3338 unsigned long lock_flags = 0;
3341 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3342 if (ioa_cfg->ioa_is_dead)
3343 len = snprintf(buf, PAGE_SIZE, "offline\n");
3345 len = snprintf(buf, PAGE_SIZE, "online\n");
3346 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3351 * ipr_store_adapter_state - Change adapter state
3352 * @dev: device struct
3354 * @count: buffer size
3356 * This function will change the adapter's state.
3359 * count on success / other on failure
3361 static ssize_t ipr_store_adapter_state(struct device *dev,
3362 struct device_attribute *attr,
3363 const char *buf, size_t count)
3365 struct Scsi_Host *shost = class_to_shost(dev);
3366 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
3367 unsigned long lock_flags;
3370 if (!capable(CAP_SYS_ADMIN))
3373 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3374 if (ioa_cfg->ioa_is_dead && !strncmp(buf, "online", 6)) {
3375 ioa_cfg->ioa_is_dead = 0;
3376 ioa_cfg->reset_retries = 0;
3377 ioa_cfg->in_ioa_bringdown = 0;
3378 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
3380 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3381 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
3386 static struct device_attribute ipr_ioa_state_attr = {
3388 .name = "online_state",
3389 .mode = S_IRUGO | S_IWUSR,
3391 .show = ipr_show_adapter_state,
3392 .store = ipr_store_adapter_state
3396 * ipr_store_reset_adapter - Reset the adapter
3397 * @dev: device struct
3399 * @count: buffer size
3401 * This function will reset the adapter.
3404 * count on success / other on failure
3406 static ssize_t ipr_store_reset_adapter(struct device *dev,
3407 struct device_attribute *attr,
3408 const char *buf, size_t count)
3410 struct Scsi_Host *shost = class_to_shost(dev);
3411 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
3412 unsigned long lock_flags;
3415 if (!capable(CAP_SYS_ADMIN))
3418 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3419 if (!ioa_cfg->in_reset_reload)
3420 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NORMAL);
3421 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3422 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
3427 static struct device_attribute ipr_ioa_reset_attr = {
3429 .name = "reset_host",
3432 .store = ipr_store_reset_adapter
3436 * ipr_alloc_ucode_buffer - Allocates a microcode download buffer
3437 * @buf_len: buffer length
3439 * Allocates a DMA'able buffer in chunks and assembles a scatter/gather
3440 * list to use for microcode download
3443 * pointer to sglist / NULL on failure
3445 static struct ipr_sglist *ipr_alloc_ucode_buffer(int buf_len)
3447 int sg_size, order, bsize_elem, num_elem, i, j;
3448 struct ipr_sglist *sglist;
3449 struct scatterlist *scatterlist;
3452 /* Get the minimum size per scatter/gather element */
3453 sg_size = buf_len / (IPR_MAX_SGLIST - 1);
3455 /* Get the actual size per element */
3456 order = get_order(sg_size);
3458 /* Determine the actual number of bytes per element */
3459 bsize_elem = PAGE_SIZE * (1 << order);
3461 /* Determine the actual number of sg entries needed */
3462 if (buf_len % bsize_elem)
3463 num_elem = (buf_len / bsize_elem) + 1;
3465 num_elem = buf_len / bsize_elem;
3467 /* Allocate a scatter/gather list for the DMA */
3468 sglist = kzalloc(sizeof(struct ipr_sglist) +
3469 (sizeof(struct scatterlist) * (num_elem - 1)),
3472 if (sglist == NULL) {
3477 scatterlist = sglist->scatterlist;
3478 sg_init_table(scatterlist, num_elem);
3480 sglist->order = order;
3481 sglist->num_sg = num_elem;
3483 /* Allocate a bunch of sg elements */
3484 for (i = 0; i < num_elem; i++) {
3485 page = alloc_pages(GFP_KERNEL, order);
3489 /* Free up what we already allocated */
3490 for (j = i - 1; j >= 0; j--)
3491 __free_pages(sg_page(&scatterlist[j]), order);
3496 sg_set_page(&scatterlist[i], page, 0, 0);
3503 * ipr_free_ucode_buffer - Frees a microcode download buffer
3504 * @p_dnld: scatter/gather list pointer
3506 * Free a DMA'able ucode download buffer previously allocated with
3507 * ipr_alloc_ucode_buffer
3512 static void ipr_free_ucode_buffer(struct ipr_sglist *sglist)
3516 for (i = 0; i < sglist->num_sg; i++)
3517 __free_pages(sg_page(&sglist->scatterlist[i]), sglist->order);
3523 * ipr_copy_ucode_buffer - Copy user buffer to kernel buffer
3524 * @sglist: scatter/gather list pointer
3525 * @buffer: buffer pointer
3526 * @len: buffer length
3528 * Copy a microcode image from a user buffer into a buffer allocated by
3529 * ipr_alloc_ucode_buffer
3532 * 0 on success / other on failure
3534 static int ipr_copy_ucode_buffer(struct ipr_sglist *sglist,
3535 u8 *buffer, u32 len)
3537 int bsize_elem, i, result = 0;
3538 struct scatterlist *scatterlist;
3541 /* Determine the actual number of bytes per element */
3542 bsize_elem = PAGE_SIZE * (1 << sglist->order);
3544 scatterlist = sglist->scatterlist;
3546 for (i = 0; i < (len / bsize_elem); i++, buffer += bsize_elem) {
3547 struct page *page = sg_page(&scatterlist[i]);
3550 memcpy(kaddr, buffer, bsize_elem);
3553 scatterlist[i].length = bsize_elem;
3561 if (len % bsize_elem) {
3562 struct page *page = sg_page(&scatterlist[i]);
3565 memcpy(kaddr, buffer, len % bsize_elem);
3568 scatterlist[i].length = len % bsize_elem;
3571 sglist->buffer_len = len;
3576 * ipr_build_ucode_ioadl64 - Build a microcode download IOADL
3577 * @ipr_cmd: ipr command struct
3578 * @sglist: scatter/gather list
3580 * Builds a microcode download IOA data list (IOADL).
3583 static void ipr_build_ucode_ioadl64(struct ipr_cmnd *ipr_cmd,
3584 struct ipr_sglist *sglist)
3586 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
3587 struct ipr_ioadl64_desc *ioadl64 = ipr_cmd->i.ioadl64;
3588 struct scatterlist *scatterlist = sglist->scatterlist;
3591 ipr_cmd->dma_use_sg = sglist->num_dma_sg;
3592 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ;
3593 ioarcb->data_transfer_length = cpu_to_be32(sglist->buffer_len);
3596 cpu_to_be32(sizeof(struct ipr_ioadl64_desc) * ipr_cmd->dma_use_sg);
3597 for (i = 0; i < ipr_cmd->dma_use_sg; i++) {
3598 ioadl64[i].flags = cpu_to_be32(IPR_IOADL_FLAGS_WRITE);
3599 ioadl64[i].data_len = cpu_to_be32(sg_dma_len(&scatterlist[i]));
3600 ioadl64[i].address = cpu_to_be64(sg_dma_address(&scatterlist[i]));
3603 ioadl64[i-1].flags |= cpu_to_be32(IPR_IOADL_FLAGS_LAST);
3607 * ipr_build_ucode_ioadl - Build a microcode download IOADL
3608 * @ipr_cmd: ipr command struct
3609 * @sglist: scatter/gather list
3611 * Builds a microcode download IOA data list (IOADL).
3614 static void ipr_build_ucode_ioadl(struct ipr_cmnd *ipr_cmd,
3615 struct ipr_sglist *sglist)
3617 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
3618 struct ipr_ioadl_desc *ioadl = ipr_cmd->i.ioadl;
3619 struct scatterlist *scatterlist = sglist->scatterlist;
3622 ipr_cmd->dma_use_sg = sglist->num_dma_sg;
3623 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ;
3624 ioarcb->data_transfer_length = cpu_to_be32(sglist->buffer_len);
3627 cpu_to_be32(sizeof(struct ipr_ioadl_desc) * ipr_cmd->dma_use_sg);
3629 for (i = 0; i < ipr_cmd->dma_use_sg; i++) {
3630 ioadl[i].flags_and_data_len =
3631 cpu_to_be32(IPR_IOADL_FLAGS_WRITE | sg_dma_len(&scatterlist[i]));
3633 cpu_to_be32(sg_dma_address(&scatterlist[i]));
3636 ioadl[i-1].flags_and_data_len |=
3637 cpu_to_be32(IPR_IOADL_FLAGS_LAST);
3641 * ipr_update_ioa_ucode - Update IOA's microcode
3642 * @ioa_cfg: ioa config struct
3643 * @sglist: scatter/gather list
3645 * Initiate an adapter reset to update the IOA's microcode
3648 * 0 on success / -EIO on failure
3650 static int ipr_update_ioa_ucode(struct ipr_ioa_cfg *ioa_cfg,
3651 struct ipr_sglist *sglist)
3653 unsigned long lock_flags;
3655 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3656 while(ioa_cfg->in_reset_reload) {
3657 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3658 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
3659 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3662 if (ioa_cfg->ucode_sglist) {
3663 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3664 dev_err(&ioa_cfg->pdev->dev,
3665 "Microcode download already in progress\n");
3669 sglist->num_dma_sg = pci_map_sg(ioa_cfg->pdev, sglist->scatterlist,
3670 sglist->num_sg, DMA_TO_DEVICE);
3672 if (!sglist->num_dma_sg) {
3673 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3674 dev_err(&ioa_cfg->pdev->dev,
3675 "Failed to map microcode download buffer!\n");
3679 ioa_cfg->ucode_sglist = sglist;
3680 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NORMAL);
3681 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3682 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
3684 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3685 ioa_cfg->ucode_sglist = NULL;
3686 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3691 * ipr_store_update_fw - Update the firmware on the adapter
3692 * @class_dev: device struct
3694 * @count: buffer size
3696 * This function will update the firmware on the adapter.
3699 * count on success / other on failure
3701 static ssize_t ipr_store_update_fw(struct device *dev,
3702 struct device_attribute *attr,
3703 const char *buf, size_t count)
3705 struct Scsi_Host *shost = class_to_shost(dev);
3706 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
3707 struct ipr_ucode_image_header *image_hdr;
3708 const struct firmware *fw_entry;
3709 struct ipr_sglist *sglist;
3712 int len, result, dnld_size;
3714 if (!capable(CAP_SYS_ADMIN))
3717 len = snprintf(fname, 99, "%s", buf);
3718 fname[len-1] = '\0';
3720 if(request_firmware(&fw_entry, fname, &ioa_cfg->pdev->dev)) {
3721 dev_err(&ioa_cfg->pdev->dev, "Firmware file %s not found\n", fname);
3725 image_hdr = (struct ipr_ucode_image_header *)fw_entry->data;
3727 if (be32_to_cpu(image_hdr->header_length) > fw_entry->size ||
3728 (ioa_cfg->vpd_cbs->page3_data.card_type &&
3729 ioa_cfg->vpd_cbs->page3_data.card_type != image_hdr->card_type)) {
3730 dev_err(&ioa_cfg->pdev->dev, "Invalid microcode buffer\n");
3731 release_firmware(fw_entry);
3735 src = (u8 *)image_hdr + be32_to_cpu(image_hdr->header_length);
3736 dnld_size = fw_entry->size - be32_to_cpu(image_hdr->header_length);
3737 sglist = ipr_alloc_ucode_buffer(dnld_size);
3740 dev_err(&ioa_cfg->pdev->dev, "Microcode buffer allocation failed\n");
3741 release_firmware(fw_entry);
3745 result = ipr_copy_ucode_buffer(sglist, src, dnld_size);
3748 dev_err(&ioa_cfg->pdev->dev,
3749 "Microcode buffer copy to DMA buffer failed\n");
3753 result = ipr_update_ioa_ucode(ioa_cfg, sglist);
3758 ipr_free_ucode_buffer(sglist);
3759 release_firmware(fw_entry);
3763 static struct device_attribute ipr_update_fw_attr = {
3765 .name = "update_fw",
3768 .store = ipr_store_update_fw
3772 * ipr_show_fw_type - Show the adapter's firmware type.
3773 * @dev: class device struct
3777 * number of bytes printed to buffer
3779 static ssize_t ipr_show_fw_type(struct device *dev,
3780 struct device_attribute *attr, char *buf)
3782 struct Scsi_Host *shost = class_to_shost(dev);
3783 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
3784 unsigned long lock_flags = 0;
3787 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3788 len = snprintf(buf, PAGE_SIZE, "%d\n", ioa_cfg->sis64);
3789 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3793 static struct device_attribute ipr_ioa_fw_type_attr = {
3798 .show = ipr_show_fw_type
3801 static struct device_attribute *ipr_ioa_attrs[] = {
3802 &ipr_fw_version_attr,
3803 &ipr_log_level_attr,
3804 &ipr_diagnostics_attr,
3805 &ipr_ioa_state_attr,
3806 &ipr_ioa_reset_attr,
3807 &ipr_update_fw_attr,
3808 &ipr_ioa_fw_type_attr,
3812 #ifdef CONFIG_SCSI_IPR_DUMP
3814 * ipr_read_dump - Dump the adapter
3815 * @filp: open sysfs file
3816 * @kobj: kobject struct
3817 * @bin_attr: bin_attribute struct
3820 * @count: buffer size
3823 * number of bytes printed to buffer
3825 static ssize_t ipr_read_dump(struct file *filp, struct kobject *kobj,
3826 struct bin_attribute *bin_attr,
3827 char *buf, loff_t off, size_t count)
3829 struct device *cdev = container_of(kobj, struct device, kobj);
3830 struct Scsi_Host *shost = class_to_shost(cdev);
3831 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
3832 struct ipr_dump *dump;
3833 unsigned long lock_flags = 0;
3838 if (!capable(CAP_SYS_ADMIN))
3841 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3842 dump = ioa_cfg->dump;
3844 if (ioa_cfg->sdt_state != DUMP_OBTAINED || !dump) {
3845 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3848 kref_get(&dump->kref);
3849 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3851 if (off > dump->driver_dump.hdr.len) {
3852 kref_put(&dump->kref, ipr_release_dump);
3856 if (off + count > dump->driver_dump.hdr.len) {
3857 count = dump->driver_dump.hdr.len - off;
3861 if (count && off < sizeof(dump->driver_dump)) {
3862 if (off + count > sizeof(dump->driver_dump))
3863 len = sizeof(dump->driver_dump) - off;
3866 src = (u8 *)&dump->driver_dump + off;
3867 memcpy(buf, src, len);
3873 off -= sizeof(dump->driver_dump);
3875 if (count && off < offsetof(struct ipr_ioa_dump, ioa_data)) {
3876 if (off + count > offsetof(struct ipr_ioa_dump, ioa_data))
3877 len = offsetof(struct ipr_ioa_dump, ioa_data) - off;
3880 src = (u8 *)&dump->ioa_dump + off;
3881 memcpy(buf, src, len);
3887 off -= offsetof(struct ipr_ioa_dump, ioa_data);
3890 if ((off & PAGE_MASK) != ((off + count) & PAGE_MASK))
3891 len = PAGE_ALIGN(off) - off;
3894 src = (u8 *)dump->ioa_dump.ioa_data[(off & PAGE_MASK) >> PAGE_SHIFT];
3895 src += off & ~PAGE_MASK;
3896 memcpy(buf, src, len);
3902 kref_put(&dump->kref, ipr_release_dump);
3907 * ipr_alloc_dump - Prepare for adapter dump
3908 * @ioa_cfg: ioa config struct
3911 * 0 on success / other on failure
3913 static int ipr_alloc_dump(struct ipr_ioa_cfg *ioa_cfg)
3915 struct ipr_dump *dump;
3916 unsigned long lock_flags = 0;
3918 dump = kzalloc(sizeof(struct ipr_dump), GFP_KERNEL);
3921 ipr_err("Dump memory allocation failed\n");
3925 kref_init(&dump->kref);
3926 dump->ioa_cfg = ioa_cfg;
3928 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3930 if (INACTIVE != ioa_cfg->sdt_state) {
3931 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3936 ioa_cfg->dump = dump;
3937 ioa_cfg->sdt_state = WAIT_FOR_DUMP;
3938 if (ioa_cfg->ioa_is_dead && !ioa_cfg->dump_taken) {
3939 ioa_cfg->dump_taken = 1;
3940 schedule_work(&ioa_cfg->work_q);
3942 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3948 * ipr_free_dump - Free adapter dump memory
3949 * @ioa_cfg: ioa config struct
3952 * 0 on success / other on failure
3954 static int ipr_free_dump(struct ipr_ioa_cfg *ioa_cfg)
3956 struct ipr_dump *dump;
3957 unsigned long lock_flags = 0;
3961 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3962 dump = ioa_cfg->dump;
3964 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3968 ioa_cfg->dump = NULL;
3969 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3971 kref_put(&dump->kref, ipr_release_dump);
3978 * ipr_write_dump - Setup dump state of adapter
3979 * @filp: open sysfs file
3980 * @kobj: kobject struct
3981 * @bin_attr: bin_attribute struct
3984 * @count: buffer size
3987 * number of bytes printed to buffer
3989 static ssize_t ipr_write_dump(struct file *filp, struct kobject *kobj,
3990 struct bin_attribute *bin_attr,
3991 char *buf, loff_t off, size_t count)
3993 struct device *cdev = container_of(kobj, struct device, kobj);
3994 struct Scsi_Host *shost = class_to_shost(cdev);
3995 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
3998 if (!capable(CAP_SYS_ADMIN))
4002 rc = ipr_alloc_dump(ioa_cfg);
4003 else if (buf[0] == '0')
4004 rc = ipr_free_dump(ioa_cfg);
4014 static struct bin_attribute ipr_dump_attr = {
4017 .mode = S_IRUSR | S_IWUSR,
4020 .read = ipr_read_dump,
4021 .write = ipr_write_dump
4024 static int ipr_free_dump(struct ipr_ioa_cfg *ioa_cfg) { return 0; };
4028 * ipr_change_queue_depth - Change the device's queue depth
4029 * @sdev: scsi device struct
4030 * @qdepth: depth to set
4031 * @reason: calling context
4036 static int ipr_change_queue_depth(struct scsi_device *sdev, int qdepth,
4039 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)sdev->host->hostdata;
4040 struct ipr_resource_entry *res;
4041 unsigned long lock_flags = 0;
4043 if (reason != SCSI_QDEPTH_DEFAULT)
4046 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4047 res = (struct ipr_resource_entry *)sdev->hostdata;
4049 if (res && ipr_is_gata(res) && qdepth > IPR_MAX_CMD_PER_ATA_LUN)
4050 qdepth = IPR_MAX_CMD_PER_ATA_LUN;
4051 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4053 scsi_adjust_queue_depth(sdev, scsi_get_tag_type(sdev), qdepth);
4054 return sdev->queue_depth;
4058 * ipr_change_queue_type - Change the device's queue type
4059 * @dsev: scsi device struct
4060 * @tag_type: type of tags to use
4063 * actual queue type set
4065 static int ipr_change_queue_type(struct scsi_device *sdev, int tag_type)
4067 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)sdev->host->hostdata;
4068 struct ipr_resource_entry *res;
4069 unsigned long lock_flags = 0;
4071 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4072 res = (struct ipr_resource_entry *)sdev->hostdata;
4075 if (ipr_is_gscsi(res) && sdev->tagged_supported) {
4077 * We don't bother quiescing the device here since the
4078 * adapter firmware does it for us.
4080 scsi_set_tag_type(sdev, tag_type);
4083 scsi_activate_tcq(sdev, sdev->queue_depth);
4085 scsi_deactivate_tcq(sdev, sdev->queue_depth);
4091 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4096 * ipr_show_adapter_handle - Show the adapter's resource handle for this device
4097 * @dev: device struct
4098 * @attr: device attribute structure
4102 * number of bytes printed to buffer
4104 static ssize_t ipr_show_adapter_handle(struct device *dev, struct device_attribute *attr, char *buf)
4106 struct scsi_device *sdev = to_scsi_device(dev);
4107 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)sdev->host->hostdata;
4108 struct ipr_resource_entry *res;
4109 unsigned long lock_flags = 0;
4110 ssize_t len = -ENXIO;
4112 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4113 res = (struct ipr_resource_entry *)sdev->hostdata;
4115 len = snprintf(buf, PAGE_SIZE, "%08X\n", res->res_handle);
4116 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4120 static struct device_attribute ipr_adapter_handle_attr = {
4122 .name = "adapter_handle",
4125 .show = ipr_show_adapter_handle
4129 * ipr_show_resource_path - Show the resource path or the resource address for
4131 * @dev: device struct
4132 * @attr: device attribute structure
4136 * number of bytes printed to buffer
4138 static ssize_t ipr_show_resource_path(struct device *dev, struct device_attribute *attr, char *buf)
4140 struct scsi_device *sdev = to_scsi_device(dev);
4141 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)sdev->host->hostdata;
4142 struct ipr_resource_entry *res;
4143 unsigned long lock_flags = 0;
4144 ssize_t len = -ENXIO;
4145 char buffer[IPR_MAX_RES_PATH_LENGTH];
4147 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4148 res = (struct ipr_resource_entry *)sdev->hostdata;
4149 if (res && ioa_cfg->sis64)
4150 len = snprintf(buf, PAGE_SIZE, "%s\n",
4151 ipr_format_res_path(res->res_path, buffer,
4154 len = snprintf(buf, PAGE_SIZE, "%d:%d:%d:%d\n", ioa_cfg->host->host_no,
4155 res->bus, res->target, res->lun);
4157 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4161 static struct device_attribute ipr_resource_path_attr = {
4163 .name = "resource_path",
4166 .show = ipr_show_resource_path
4170 * ipr_show_device_id - Show the device_id for this device.
4171 * @dev: device struct
4172 * @attr: device attribute structure
4176 * number of bytes printed to buffer
4178 static ssize_t ipr_show_device_id(struct device *dev, struct device_attribute *attr, char *buf)
4180 struct scsi_device *sdev = to_scsi_device(dev);
4181 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)sdev->host->hostdata;
4182 struct ipr_resource_entry *res;
4183 unsigned long lock_flags = 0;
4184 ssize_t len = -ENXIO;
4186 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4187 res = (struct ipr_resource_entry *)sdev->hostdata;
4188 if (res && ioa_cfg->sis64)
4189 len = snprintf(buf, PAGE_SIZE, "0x%llx\n", res->dev_id);
4191 len = snprintf(buf, PAGE_SIZE, "0x%llx\n", res->lun_wwn);
4193 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4197 static struct device_attribute ipr_device_id_attr = {
4199 .name = "device_id",
4202 .show = ipr_show_device_id
4206 * ipr_show_resource_type - Show the resource type for this device.
4207 * @dev: device struct
4208 * @attr: device attribute structure
4212 * number of bytes printed to buffer
4214 static ssize_t ipr_show_resource_type(struct device *dev, struct device_attribute *attr, char *buf)
4216 struct scsi_device *sdev = to_scsi_device(dev);
4217 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)sdev->host->hostdata;
4218 struct ipr_resource_entry *res;
4219 unsigned long lock_flags = 0;
4220 ssize_t len = -ENXIO;
4222 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4223 res = (struct ipr_resource_entry *)sdev->hostdata;
4226 len = snprintf(buf, PAGE_SIZE, "%x\n", res->type);
4228 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4232 static struct device_attribute ipr_resource_type_attr = {
4234 .name = "resource_type",
4237 .show = ipr_show_resource_type
4240 static struct device_attribute *ipr_dev_attrs[] = {
4241 &ipr_adapter_handle_attr,
4242 &ipr_resource_path_attr,
4243 &ipr_device_id_attr,
4244 &ipr_resource_type_attr,
4249 * ipr_biosparam - Return the HSC mapping
4250 * @sdev: scsi device struct
4251 * @block_device: block device pointer
4252 * @capacity: capacity of the device
4253 * @parm: Array containing returned HSC values.
4255 * This function generates the HSC parms that fdisk uses.
4256 * We want to make sure we return something that places partitions
4257 * on 4k boundaries for best performance with the IOA.
4262 static int ipr_biosparam(struct scsi_device *sdev,
4263 struct block_device *block_device,
4264 sector_t capacity, int *parm)
4272 cylinders = capacity;
4273 sector_div(cylinders, (128 * 32));
4278 parm[2] = cylinders;
4284 * ipr_find_starget - Find target based on bus/target.
4285 * @starget: scsi target struct
4288 * resource entry pointer if found / NULL if not found
4290 static struct ipr_resource_entry *ipr_find_starget(struct scsi_target *starget)
4292 struct Scsi_Host *shost = dev_to_shost(&starget->dev);
4293 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) shost->hostdata;
4294 struct ipr_resource_entry *res;
4296 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) {
4297 if ((res->bus == starget->channel) &&
4298 (res->target == starget->id) &&
4307 static struct ata_port_info sata_port_info;
4310 * ipr_target_alloc - Prepare for commands to a SCSI target
4311 * @starget: scsi target struct
4313 * If the device is a SATA device, this function allocates an
4314 * ATA port with libata, else it does nothing.
4317 * 0 on success / non-0 on failure
4319 static int ipr_target_alloc(struct scsi_target *starget)
4321 struct Scsi_Host *shost = dev_to_shost(&starget->dev);
4322 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) shost->hostdata;
4323 struct ipr_sata_port *sata_port;
4324 struct ata_port *ap;
4325 struct ipr_resource_entry *res;
4326 unsigned long lock_flags;
4328 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4329 res = ipr_find_starget(starget);
4330 starget->hostdata = NULL;
4332 if (res && ipr_is_gata(res)) {
4333 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4334 sata_port = kzalloc(sizeof(*sata_port), GFP_KERNEL);
4338 ap = ata_sas_port_alloc(&ioa_cfg->ata_host, &sata_port_info, shost);
4340 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4341 sata_port->ioa_cfg = ioa_cfg;
4343 sata_port->res = res;
4345 res->sata_port = sata_port;
4346 ap->private_data = sata_port;
4347 starget->hostdata = sata_port;
4353 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4359 * ipr_target_destroy - Destroy a SCSI target
4360 * @starget: scsi target struct
4362 * If the device was a SATA device, this function frees the libata
4363 * ATA port, else it does nothing.
4366 static void ipr_target_destroy(struct scsi_target *starget)
4368 struct ipr_sata_port *sata_port = starget->hostdata;
4369 struct Scsi_Host *shost = dev_to_shost(&starget->dev);
4370 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) shost->hostdata;
4372 if (ioa_cfg->sis64) {
4373 if (starget->channel == IPR_ARRAY_VIRTUAL_BUS)
4374 clear_bit(starget->id, ioa_cfg->array_ids);
4375 else if (starget->channel == IPR_VSET_VIRTUAL_BUS)
4376 clear_bit(starget->id, ioa_cfg->vset_ids);
4377 else if (starget->channel == 0)
4378 clear_bit(starget->id, ioa_cfg->target_ids);
4382 starget->hostdata = NULL;
4383 ata_sas_port_destroy(sata_port->ap);
4389 * ipr_find_sdev - Find device based on bus/target/lun.
4390 * @sdev: scsi device struct
4393 * resource entry pointer if found / NULL if not found
4395 static struct ipr_resource_entry *ipr_find_sdev(struct scsi_device *sdev)
4397 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) sdev->host->hostdata;
4398 struct ipr_resource_entry *res;
4400 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) {
4401 if ((res->bus == sdev->channel) &&
4402 (res->target == sdev->id) &&
4403 (res->lun == sdev->lun))
4411 * ipr_slave_destroy - Unconfigure a SCSI device
4412 * @sdev: scsi device struct
4417 static void ipr_slave_destroy(struct scsi_device *sdev)
4419 struct ipr_resource_entry *res;
4420 struct ipr_ioa_cfg *ioa_cfg;
4421 unsigned long lock_flags = 0;
4423 ioa_cfg = (struct ipr_ioa_cfg *) sdev->host->hostdata;
4425 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4426 res = (struct ipr_resource_entry *) sdev->hostdata;
4429 res->sata_port->ap->link.device[0].class = ATA_DEV_NONE;
4430 sdev->hostdata = NULL;
4432 res->sata_port = NULL;
4434 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4438 * ipr_slave_configure - Configure a SCSI device
4439 * @sdev: scsi device struct
4441 * This function configures the specified scsi device.
4446 static int ipr_slave_configure(struct scsi_device *sdev)
4448 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) sdev->host->hostdata;
4449 struct ipr_resource_entry *res;
4450 struct ata_port *ap = NULL;
4451 unsigned long lock_flags = 0;
4452 char buffer[IPR_MAX_RES_PATH_LENGTH];
4454 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4455 res = sdev->hostdata;
4457 if (ipr_is_af_dasd_device(res))
4458 sdev->type = TYPE_RAID;
4459 if (ipr_is_af_dasd_device(res) || ipr_is_ioa_resource(res)) {
4460 sdev->scsi_level = 4;
4461 sdev->no_uld_attach = 1;
4463 if (ipr_is_vset_device(res)) {
4464 blk_queue_rq_timeout(sdev->request_queue,
4465 IPR_VSET_RW_TIMEOUT);
4466 blk_queue_max_hw_sectors(sdev->request_queue, IPR_VSET_MAX_SECTORS);
4468 if (ipr_is_gata(res) && res->sata_port)
4469 ap = res->sata_port->ap;
4470 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4473 scsi_adjust_queue_depth(sdev, 0, IPR_MAX_CMD_PER_ATA_LUN);
4474 ata_sas_slave_configure(sdev, ap);
4476 scsi_adjust_queue_depth(sdev, 0, sdev->host->cmd_per_lun);
4478 sdev_printk(KERN_INFO, sdev, "Resource path: %s\n",
4479 ipr_format_res_path(res->res_path, buffer,
4483 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4488 * ipr_ata_slave_alloc - Prepare for commands to a SATA device
4489 * @sdev: scsi device struct
4491 * This function initializes an ATA port so that future commands
4492 * sent through queuecommand will work.
4497 static int ipr_ata_slave_alloc(struct scsi_device *sdev)
4499 struct ipr_sata_port *sata_port = NULL;
4503 if (sdev->sdev_target)
4504 sata_port = sdev->sdev_target->hostdata;
4506 rc = ata_sas_port_init(sata_port->ap);
4508 ipr_slave_destroy(sdev);
4515 * ipr_slave_alloc - Prepare for commands to a device.
4516 * @sdev: scsi device struct
4518 * This function saves a pointer to the resource entry
4519 * in the scsi device struct if the device exists. We
4520 * can then use this pointer in ipr_queuecommand when
4521 * handling new commands.
4524 * 0 on success / -ENXIO if device does not exist
4526 static int ipr_slave_alloc(struct scsi_device *sdev)
4528 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) sdev->host->hostdata;
4529 struct ipr_resource_entry *res;
4530 unsigned long lock_flags;
4533 sdev->hostdata = NULL;
4535 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4537 res = ipr_find_sdev(sdev);
4542 sdev->hostdata = res;
4543 if (!ipr_is_naca_model(res))
4544 res->needs_sync_complete = 1;
4546 if (ipr_is_gata(res)) {
4547 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4548 return ipr_ata_slave_alloc(sdev);
4552 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4558 * ipr_eh_host_reset - Reset the host adapter
4559 * @scsi_cmd: scsi command struct
4564 static int __ipr_eh_host_reset(struct scsi_cmnd * scsi_cmd)
4566 struct ipr_ioa_cfg *ioa_cfg;
4570 ioa_cfg = (struct ipr_ioa_cfg *) scsi_cmd->device->host->hostdata;
4572 dev_err(&ioa_cfg->pdev->dev,
4573 "Adapter being reset as a result of error recovery.\n");
4575 if (WAIT_FOR_DUMP == ioa_cfg->sdt_state)
4576 ioa_cfg->sdt_state = GET_DUMP;
4578 rc = ipr_reset_reload(ioa_cfg, IPR_SHUTDOWN_ABBREV);
4584 static int ipr_eh_host_reset(struct scsi_cmnd * cmd)
4588 spin_lock_irq(cmd->device->host->host_lock);
4589 rc = __ipr_eh_host_reset(cmd);
4590 spin_unlock_irq(cmd->device->host->host_lock);
4596 * ipr_device_reset - Reset the device
4597 * @ioa_cfg: ioa config struct
4598 * @res: resource entry struct
4600 * This function issues a device reset to the affected device.
4601 * If the device is a SCSI device, a LUN reset will be sent
4602 * to the device first. If that does not work, a target reset
4603 * will be sent. If the device is a SATA device, a PHY reset will
4607 * 0 on success / non-zero on failure
4609 static int ipr_device_reset(struct ipr_ioa_cfg *ioa_cfg,
4610 struct ipr_resource_entry *res)
4612 struct ipr_cmnd *ipr_cmd;
4613 struct ipr_ioarcb *ioarcb;
4614 struct ipr_cmd_pkt *cmd_pkt;
4615 struct ipr_ioarcb_ata_regs *regs;
4619 ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg);
4620 ioarcb = &ipr_cmd->ioarcb;
4621 cmd_pkt = &ioarcb->cmd_pkt;
4623 if (ipr_cmd->ioa_cfg->sis64) {
4624 regs = &ipr_cmd->i.ata_ioadl.regs;
4625 ioarcb->add_cmd_parms_offset = cpu_to_be16(sizeof(*ioarcb));
4627 regs = &ioarcb->u.add_data.u.regs;
4629 ioarcb->res_handle = res->res_handle;
4630 cmd_pkt->request_type = IPR_RQTYPE_IOACMD;
4631 cmd_pkt->cdb[0] = IPR_RESET_DEVICE;
4632 if (ipr_is_gata(res)) {
4633 cmd_pkt->cdb[2] = IPR_ATA_PHY_RESET;
4634 ioarcb->add_cmd_parms_len = cpu_to_be16(sizeof(regs->flags));
4635 regs->flags |= IPR_ATA_FLAG_STATUS_ON_GOOD_COMPLETION;
4638 ipr_send_blocking_cmd(ipr_cmd, ipr_timeout, IPR_DEVICE_RESET_TIMEOUT);
4639 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
4640 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
4641 if (ipr_is_gata(res) && res->sata_port && ioasc != IPR_IOASC_IOA_WAS_RESET) {
4642 if (ipr_cmd->ioa_cfg->sis64)
4643 memcpy(&res->sata_port->ioasa, &ipr_cmd->s.ioasa64.u.gata,
4644 sizeof(struct ipr_ioasa_gata));
4646 memcpy(&res->sata_port->ioasa, &ipr_cmd->s.ioasa.u.gata,
4647 sizeof(struct ipr_ioasa_gata));
4651 return (IPR_IOASC_SENSE_KEY(ioasc) ? -EIO : 0);
4655 * ipr_sata_reset - Reset the SATA port
4656 * @link: SATA link to reset
4657 * @classes: class of the attached device
4659 * This function issues a SATA phy reset to the affected ATA link.
4662 * 0 on success / non-zero on failure
4664 static int ipr_sata_reset(struct ata_link *link, unsigned int *classes,
4665 unsigned long deadline)
4667 struct ipr_sata_port *sata_port = link->ap->private_data;
4668 struct ipr_ioa_cfg *ioa_cfg = sata_port->ioa_cfg;
4669 struct ipr_resource_entry *res;
4670 unsigned long lock_flags = 0;
4674 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4675 while(ioa_cfg->in_reset_reload) {
4676 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4677 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
4678 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4681 res = sata_port->res;
4683 rc = ipr_device_reset(ioa_cfg, res);
4684 *classes = res->ata_class;
4687 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4693 * ipr_eh_dev_reset - Reset the device
4694 * @scsi_cmd: scsi command struct
4696 * This function issues a device reset to the affected device.
4697 * A LUN reset will be sent to the device first. If that does
4698 * not work, a target reset will be sent.
4703 static int __ipr_eh_dev_reset(struct scsi_cmnd * scsi_cmd)
4705 struct ipr_cmnd *ipr_cmd;
4706 struct ipr_ioa_cfg *ioa_cfg;
4707 struct ipr_resource_entry *res;
4708 struct ata_port *ap;
4712 ioa_cfg = (struct ipr_ioa_cfg *) scsi_cmd->device->host->hostdata;
4713 res = scsi_cmd->device->hostdata;
4719 * If we are currently going through reset/reload, return failed. This will force the
4720 * mid-layer to call ipr_eh_host_reset, which will then go to sleep and wait for the
4723 if (ioa_cfg->in_reset_reload)
4725 if (ioa_cfg->ioa_is_dead)
4728 list_for_each_entry(ipr_cmd, &ioa_cfg->pending_q, queue) {
4729 if (ipr_cmd->ioarcb.res_handle == res->res_handle) {
4730 if (ipr_cmd->scsi_cmd)
4731 ipr_cmd->done = ipr_scsi_eh_done;
4733 ipr_cmd->done = ipr_sata_eh_done;
4734 if (ipr_cmd->qc && !(ipr_cmd->qc->flags & ATA_QCFLAG_FAILED)) {
4735 ipr_cmd->qc->err_mask |= AC_ERR_TIMEOUT;
4736 ipr_cmd->qc->flags |= ATA_QCFLAG_FAILED;
4741 res->resetting_device = 1;
4742 scmd_printk(KERN_ERR, scsi_cmd, "Resetting device\n");
4744 if (ipr_is_gata(res) && res->sata_port) {
4745 ap = res->sata_port->ap;
4746 spin_unlock_irq(scsi_cmd->device->host->host_lock);
4747 ata_std_error_handler(ap);
4748 spin_lock_irq(scsi_cmd->device->host->host_lock);
4750 list_for_each_entry(ipr_cmd, &ioa_cfg->pending_q, queue) {
4751 if (ipr_cmd->ioarcb.res_handle == res->res_handle) {
4757 rc = ipr_device_reset(ioa_cfg, res);
4758 res->resetting_device = 0;
4761 return (rc ? FAILED : SUCCESS);
4764 static int ipr_eh_dev_reset(struct scsi_cmnd * cmd)
4768 spin_lock_irq(cmd->device->host->host_lock);
4769 rc = __ipr_eh_dev_reset(cmd);
4770 spin_unlock_irq(cmd->device->host->host_lock);
4776 * ipr_bus_reset_done - Op done function for bus reset.
4777 * @ipr_cmd: ipr command struct
4779 * This function is the op done function for a bus reset
4784 static void ipr_bus_reset_done(struct ipr_cmnd *ipr_cmd)
4786 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
4787 struct ipr_resource_entry *res;
4790 if (!ioa_cfg->sis64)
4791 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) {
4792 if (res->res_handle == ipr_cmd->ioarcb.res_handle) {
4793 scsi_report_bus_reset(ioa_cfg->host, res->bus);
4799 * If abort has not completed, indicate the reset has, else call the
4800 * abort's done function to wake the sleeping eh thread
4802 if (ipr_cmd->sibling->sibling)
4803 ipr_cmd->sibling->sibling = NULL;
4805 ipr_cmd->sibling->done(ipr_cmd->sibling);
4807 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
4812 * ipr_abort_timeout - An abort task has timed out
4813 * @ipr_cmd: ipr command struct
4815 * This function handles when an abort task times out. If this
4816 * happens we issue a bus reset since we have resources tied
4817 * up that must be freed before returning to the midlayer.
4822 static void ipr_abort_timeout(struct ipr_cmnd *ipr_cmd)
4824 struct ipr_cmnd *reset_cmd;
4825 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
4826 struct ipr_cmd_pkt *cmd_pkt;
4827 unsigned long lock_flags = 0;
4830 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4831 if (ipr_cmd->completion.done || ioa_cfg->in_reset_reload) {
4832 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4836 sdev_printk(KERN_ERR, ipr_cmd->u.sdev, "Abort timed out. Resetting bus.\n");
4837 reset_cmd = ipr_get_free_ipr_cmnd(ioa_cfg);
4838 ipr_cmd->sibling = reset_cmd;
4839 reset_cmd->sibling = ipr_cmd;
4840 reset_cmd->ioarcb.res_handle = ipr_cmd->ioarcb.res_handle;
4841 cmd_pkt = &reset_cmd->ioarcb.cmd_pkt;
4842 cmd_pkt->request_type = IPR_RQTYPE_IOACMD;
4843 cmd_pkt->cdb[0] = IPR_RESET_DEVICE;
4844 cmd_pkt->cdb[2] = IPR_RESET_TYPE_SELECT | IPR_BUS_RESET;
4846 ipr_do_req(reset_cmd, ipr_bus_reset_done, ipr_timeout, IPR_DEVICE_RESET_TIMEOUT);
4847 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4852 * ipr_cancel_op - Cancel specified op
4853 * @scsi_cmd: scsi command struct
4855 * This function cancels specified op.
4860 static int ipr_cancel_op(struct scsi_cmnd * scsi_cmd)
4862 struct ipr_cmnd *ipr_cmd;
4863 struct ipr_ioa_cfg *ioa_cfg;
4864 struct ipr_resource_entry *res;
4865 struct ipr_cmd_pkt *cmd_pkt;
4870 ioa_cfg = (struct ipr_ioa_cfg *)scsi_cmd->device->host->hostdata;
4871 res = scsi_cmd->device->hostdata;
4873 /* If we are currently going through reset/reload, return failed.
4874 * This will force the mid-layer to call ipr_eh_host_reset,
4875 * which will then go to sleep and wait for the reset to complete
4877 if (ioa_cfg->in_reset_reload || ioa_cfg->ioa_is_dead)
4879 if (!res || !ipr_is_gscsi(res))
4882 list_for_each_entry(ipr_cmd, &ioa_cfg->pending_q, queue) {
4883 if (ipr_cmd->scsi_cmd == scsi_cmd) {
4884 ipr_cmd->done = ipr_scsi_eh_done;
4893 ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg);
4894 ipr_cmd->ioarcb.res_handle = res->res_handle;
4895 cmd_pkt = &ipr_cmd->ioarcb.cmd_pkt;
4896 cmd_pkt->request_type = IPR_RQTYPE_IOACMD;
4897 cmd_pkt->cdb[0] = IPR_CANCEL_ALL_REQUESTS;
4898 ipr_cmd->u.sdev = scsi_cmd->device;
4900 scmd_printk(KERN_ERR, scsi_cmd, "Aborting command: %02X\n",
4902 ipr_send_blocking_cmd(ipr_cmd, ipr_abort_timeout, IPR_CANCEL_ALL_TIMEOUT);
4903 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
4906 * If the abort task timed out and we sent a bus reset, we will get
4907 * one the following responses to the abort
4909 if (ioasc == IPR_IOASC_BUS_WAS_RESET || ioasc == IPR_IOASC_SYNC_REQUIRED) {
4914 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
4915 if (!ipr_is_naca_model(res))
4916 res->needs_sync_complete = 1;
4919 return (IPR_IOASC_SENSE_KEY(ioasc) ? FAILED : SUCCESS);
4923 * ipr_eh_abort - Abort a single op
4924 * @scsi_cmd: scsi command struct
4929 static int ipr_eh_abort(struct scsi_cmnd * scsi_cmd)
4931 unsigned long flags;
4936 spin_lock_irqsave(scsi_cmd->device->host->host_lock, flags);
4937 rc = ipr_cancel_op(scsi_cmd);
4938 spin_unlock_irqrestore(scsi_cmd->device->host->host_lock, flags);
4945 * ipr_handle_other_interrupt - Handle "other" interrupts
4946 * @ioa_cfg: ioa config struct
4947 * @int_reg: interrupt register
4950 * IRQ_NONE / IRQ_HANDLED
4952 static irqreturn_t ipr_handle_other_interrupt(struct ipr_ioa_cfg *ioa_cfg,
4953 volatile u32 int_reg)
4955 irqreturn_t rc = IRQ_HANDLED;
4957 if (int_reg & IPR_PCII_IOA_TRANS_TO_OPER) {
4958 /* Mask the interrupt */
4959 writel(IPR_PCII_IOA_TRANS_TO_OPER, ioa_cfg->regs.set_interrupt_mask_reg);
4961 /* Clear the interrupt */
4962 writel(IPR_PCII_IOA_TRANS_TO_OPER, ioa_cfg->regs.clr_interrupt_reg);
4963 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg);
4965 list_del(&ioa_cfg->reset_cmd->queue);
4966 del_timer(&ioa_cfg->reset_cmd->timer);
4967 ipr_reset_ioa_job(ioa_cfg->reset_cmd);
4969 if (int_reg & IPR_PCII_IOA_UNIT_CHECKED)
4970 ioa_cfg->ioa_unit_checked = 1;
4972 dev_err(&ioa_cfg->pdev->dev,
4973 "Permanent IOA failure. 0x%08X\n", int_reg);
4975 if (WAIT_FOR_DUMP == ioa_cfg->sdt_state)
4976 ioa_cfg->sdt_state = GET_DUMP;
4978 ipr_mask_and_clear_interrupts(ioa_cfg, ~0);
4979 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
4986 * ipr_isr_eh - Interrupt service routine error handler
4987 * @ioa_cfg: ioa config struct
4988 * @msg: message to log
4993 static void ipr_isr_eh(struct ipr_ioa_cfg *ioa_cfg, char *msg)
4995 ioa_cfg->errors_logged++;
4996 dev_err(&ioa_cfg->pdev->dev, "%s\n", msg);
4998 if (WAIT_FOR_DUMP == ioa_cfg->sdt_state)
4999 ioa_cfg->sdt_state = GET_DUMP;
5001 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
5005 * ipr_isr - Interrupt service routine
5007 * @devp: pointer to ioa config struct
5010 * IRQ_NONE / IRQ_HANDLED
5012 static irqreturn_t ipr_isr(int irq, void *devp)
5014 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)devp;
5015 unsigned long lock_flags = 0;
5016 volatile u32 int_reg, int_mask_reg;
5020 struct ipr_cmnd *ipr_cmd;
5021 irqreturn_t rc = IRQ_NONE;
5023 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
5025 /* If interrupts are disabled, ignore the interrupt */
5026 if (!ioa_cfg->allow_interrupts) {
5027 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
5031 int_mask_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg32);
5032 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg32) & ~int_mask_reg;
5034 /* If an interrupt on the adapter did not occur, ignore it.
5035 * Or in the case of SIS 64, check for a stage change interrupt.
5037 if (unlikely((int_reg & IPR_PCII_OPER_INTERRUPTS) == 0)) {
5038 if (ioa_cfg->sis64) {
5039 int_mask_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg);
5040 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg) & ~int_mask_reg;
5041 if (int_reg & IPR_PCII_IPL_STAGE_CHANGE) {
5043 /* clear stage change */
5044 writel(IPR_PCII_IPL_STAGE_CHANGE, ioa_cfg->regs.clr_interrupt_reg);
5045 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg) & ~int_mask_reg;
5046 list_del(&ioa_cfg->reset_cmd->queue);
5047 del_timer(&ioa_cfg->reset_cmd->timer);
5048 ipr_reset_ioa_job(ioa_cfg->reset_cmd);
5049 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
5054 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
5061 while ((be32_to_cpu(*ioa_cfg->hrrq_curr) & IPR_HRRQ_TOGGLE_BIT) ==
5062 ioa_cfg->toggle_bit) {
5064 cmd_index = (be32_to_cpu(*ioa_cfg->hrrq_curr) &
5065 IPR_HRRQ_REQ_RESP_HANDLE_MASK) >> IPR_HRRQ_REQ_RESP_HANDLE_SHIFT;
5067 if (unlikely(cmd_index >= IPR_NUM_CMD_BLKS)) {
5068 ipr_isr_eh(ioa_cfg, "Invalid response handle from IOA");
5069 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
5073 ipr_cmd = ioa_cfg->ipr_cmnd_list[cmd_index];
5075 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
5077 ipr_trc_hook(ipr_cmd, IPR_TRACE_FINISH, ioasc);
5079 list_del(&ipr_cmd->queue);
5080 del_timer(&ipr_cmd->timer);
5081 ipr_cmd->done(ipr_cmd);
5085 if (ioa_cfg->hrrq_curr < ioa_cfg->hrrq_end) {
5086 ioa_cfg->hrrq_curr++;
5088 ioa_cfg->hrrq_curr = ioa_cfg->hrrq_start;
5089 ioa_cfg->toggle_bit ^= 1u;
5093 if (ipr_cmd != NULL) {
5094 /* Clear the PCI interrupt */
5096 writel(IPR_PCII_HRRQ_UPDATED, ioa_cfg->regs.clr_interrupt_reg32);
5097 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg32) & ~int_mask_reg;
5098 } while (int_reg & IPR_PCII_HRRQ_UPDATED &&
5099 num_hrrq++ < IPR_MAX_HRRQ_RETRIES);
5101 if (int_reg & IPR_PCII_HRRQ_UPDATED) {
5102 ipr_isr_eh(ioa_cfg, "Error clearing HRRQ");
5103 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
5111 if (unlikely(rc == IRQ_NONE))
5112 rc = ipr_handle_other_interrupt(ioa_cfg, int_reg);
5114 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
5119 * ipr_build_ioadl64 - Build a scatter/gather list and map the buffer
5120 * @ioa_cfg: ioa config struct
5121 * @ipr_cmd: ipr command struct
5124 * 0 on success / -1 on failure
5126 static int ipr_build_ioadl64(struct ipr_ioa_cfg *ioa_cfg,
5127 struct ipr_cmnd *ipr_cmd)
5130 struct scatterlist *sg;
5132 u32 ioadl_flags = 0;
5133 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd;
5134 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
5135 struct ipr_ioadl64_desc *ioadl64 = ipr_cmd->i.ioadl64;
5137 length = scsi_bufflen(scsi_cmd);
5141 nseg = scsi_dma_map(scsi_cmd);
5143 dev_err(&ioa_cfg->pdev->dev, "pci_map_sg failed!\n");
5147 ipr_cmd->dma_use_sg = nseg;
5149 ioarcb->data_transfer_length = cpu_to_be32(length);
5151 cpu_to_be32(sizeof(struct ipr_ioadl64_desc) * ipr_cmd->dma_use_sg);
5153 if (scsi_cmd->sc_data_direction == DMA_TO_DEVICE) {
5154 ioadl_flags = IPR_IOADL_FLAGS_WRITE;
5155 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ;
5156 } else if (scsi_cmd->sc_data_direction == DMA_FROM_DEVICE)
5157 ioadl_flags = IPR_IOADL_FLAGS_READ;
5159 scsi_for_each_sg(scsi_cmd, sg, ipr_cmd->dma_use_sg, i) {
5160 ioadl64[i].flags = cpu_to_be32(ioadl_flags);
5161 ioadl64[i].data_len = cpu_to_be32(sg_dma_len(sg));
5162 ioadl64[i].address = cpu_to_be64(sg_dma_address(sg));
5165 ioadl64[i-1].flags |= cpu_to_be32(IPR_IOADL_FLAGS_LAST);
5170 * ipr_build_ioadl - Build a scatter/gather list and map the buffer
5171 * @ioa_cfg: ioa config struct
5172 * @ipr_cmd: ipr command struct
5175 * 0 on success / -1 on failure
5177 static int ipr_build_ioadl(struct ipr_ioa_cfg *ioa_cfg,
5178 struct ipr_cmnd *ipr_cmd)
5181 struct scatterlist *sg;
5183 u32 ioadl_flags = 0;
5184 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd;
5185 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
5186 struct ipr_ioadl_desc *ioadl = ipr_cmd->i.ioadl;
5188 length = scsi_bufflen(scsi_cmd);
5192 nseg = scsi_dma_map(scsi_cmd);
5194 dev_err(&ioa_cfg->pdev->dev, "pci_map_sg failed!\n");
5198 ipr_cmd->dma_use_sg = nseg;
5200 if (scsi_cmd->sc_data_direction == DMA_TO_DEVICE) {
5201 ioadl_flags = IPR_IOADL_FLAGS_WRITE;
5202 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ;
5203 ioarcb->data_transfer_length = cpu_to_be32(length);
5205 cpu_to_be32(sizeof(struct ipr_ioadl_desc) * ipr_cmd->dma_use_sg);
5206 } else if (scsi_cmd->sc_data_direction == DMA_FROM_DEVICE) {
5207 ioadl_flags = IPR_IOADL_FLAGS_READ;
5208 ioarcb->read_data_transfer_length = cpu_to_be32(length);
5209 ioarcb->read_ioadl_len =
5210 cpu_to_be32(sizeof(struct ipr_ioadl_desc) * ipr_cmd->dma_use_sg);
5213 if (ipr_cmd->dma_use_sg <= ARRAY_SIZE(ioarcb->u.add_data.u.ioadl)) {
5214 ioadl = ioarcb->u.add_data.u.ioadl;
5215 ioarcb->write_ioadl_addr = cpu_to_be32((ipr_cmd->dma_addr) +
5216 offsetof(struct ipr_ioarcb, u.add_data));
5217 ioarcb->read_ioadl_addr = ioarcb->write_ioadl_addr;
5220 scsi_for_each_sg(scsi_cmd, sg, ipr_cmd->dma_use_sg, i) {
5221 ioadl[i].flags_and_data_len =
5222 cpu_to_be32(ioadl_flags | sg_dma_len(sg));
5223 ioadl[i].address = cpu_to_be32(sg_dma_address(sg));
5226 ioadl[i-1].flags_and_data_len |= cpu_to_be32(IPR_IOADL_FLAGS_LAST);
5231 * ipr_get_task_attributes - Translate SPI Q-Tag to task attributes
5232 * @scsi_cmd: scsi command struct
5237 static u8 ipr_get_task_attributes(struct scsi_cmnd *scsi_cmd)
5240 u8 rc = IPR_FLAGS_LO_UNTAGGED_TASK;
5242 if (scsi_populate_tag_msg(scsi_cmd, tag)) {
5244 case MSG_SIMPLE_TAG:
5245 rc = IPR_FLAGS_LO_SIMPLE_TASK;
5248 rc = IPR_FLAGS_LO_HEAD_OF_Q_TASK;
5250 case MSG_ORDERED_TAG:
5251 rc = IPR_FLAGS_LO_ORDERED_TASK;
5260 * ipr_erp_done - Process completion of ERP for a device
5261 * @ipr_cmd: ipr command struct
5263 * This function copies the sense buffer into the scsi_cmd
5264 * struct and pushes the scsi_done function.
5269 static void ipr_erp_done(struct ipr_cmnd *ipr_cmd)
5271 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd;
5272 struct ipr_resource_entry *res = scsi_cmd->device->hostdata;
5273 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
5274 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
5276 if (IPR_IOASC_SENSE_KEY(ioasc) > 0) {
5277 scsi_cmd->result |= (DID_ERROR << 16);
5278 scmd_printk(KERN_ERR, scsi_cmd,
5279 "Request Sense failed with IOASC: 0x%08X\n", ioasc);
5281 memcpy(scsi_cmd->sense_buffer, ipr_cmd->sense_buffer,
5282 SCSI_SENSE_BUFFERSIZE);
5286 if (!ipr_is_naca_model(res))
5287 res->needs_sync_complete = 1;
5290 scsi_dma_unmap(ipr_cmd->scsi_cmd);
5291 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
5292 scsi_cmd->scsi_done(scsi_cmd);
5296 * ipr_reinit_ipr_cmnd_for_erp - Re-initialize a cmnd block to be used for ERP
5297 * @ipr_cmd: ipr command struct
5302 static void ipr_reinit_ipr_cmnd_for_erp(struct ipr_cmnd *ipr_cmd)
5304 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
5305 struct ipr_ioasa *ioasa = &ipr_cmd->s.ioasa;
5306 dma_addr_t dma_addr = ipr_cmd->dma_addr;
5308 memset(&ioarcb->cmd_pkt, 0, sizeof(struct ipr_cmd_pkt));
5309 ioarcb->data_transfer_length = 0;
5310 ioarcb->read_data_transfer_length = 0;
5311 ioarcb->ioadl_len = 0;
5312 ioarcb->read_ioadl_len = 0;
5313 ioasa->hdr.ioasc = 0;
5314 ioasa->hdr.residual_data_len = 0;
5316 if (ipr_cmd->ioa_cfg->sis64)
5317 ioarcb->u.sis64_addr_data.data_ioadl_addr =
5318 cpu_to_be64(dma_addr + offsetof(struct ipr_cmnd, i.ioadl64));
5320 ioarcb->write_ioadl_addr =
5321 cpu_to_be32(dma_addr + offsetof(struct ipr_cmnd, i.ioadl));
5322 ioarcb->read_ioadl_addr = ioarcb->write_ioadl_addr;
5327 * ipr_erp_request_sense - Send request sense to a device
5328 * @ipr_cmd: ipr command struct
5330 * This function sends a request sense to a device as a result
5331 * of a check condition.
5336 static void ipr_erp_request_sense(struct ipr_cmnd *ipr_cmd)
5338 struct ipr_cmd_pkt *cmd_pkt = &ipr_cmd->ioarcb.cmd_pkt;
5339 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
5341 if (IPR_IOASC_SENSE_KEY(ioasc) > 0) {
5342 ipr_erp_done(ipr_cmd);
5346 ipr_reinit_ipr_cmnd_for_erp(ipr_cmd);
5348 cmd_pkt->request_type = IPR_RQTYPE_SCSICDB;
5349 cmd_pkt->cdb[0] = REQUEST_SENSE;
5350 cmd_pkt->cdb[4] = SCSI_SENSE_BUFFERSIZE;
5351 cmd_pkt->flags_hi |= IPR_FLAGS_HI_SYNC_OVERRIDE;
5352 cmd_pkt->flags_hi |= IPR_FLAGS_HI_NO_ULEN_CHK;
5353 cmd_pkt->timeout = cpu_to_be16(IPR_REQUEST_SENSE_TIMEOUT / HZ);
5355 ipr_init_ioadl(ipr_cmd, ipr_cmd->sense_buffer_dma,
5356 SCSI_SENSE_BUFFERSIZE, IPR_IOADL_FLAGS_READ_LAST);
5358 ipr_do_req(ipr_cmd, ipr_erp_done, ipr_timeout,
5359 IPR_REQUEST_SENSE_TIMEOUT * 2);
5363 * ipr_erp_cancel_all - Send cancel all to a device
5364 * @ipr_cmd: ipr command struct
5366 * This function sends a cancel all to a device to clear the
5367 * queue. If we are running TCQ on the device, QERR is set to 1,
5368 * which means all outstanding ops have been dropped on the floor.
5369 * Cancel all will return them to us.
5374 static void ipr_erp_cancel_all(struct ipr_cmnd *ipr_cmd)
5376 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd;
5377 struct ipr_resource_entry *res = scsi_cmd->device->hostdata;
5378 struct ipr_cmd_pkt *cmd_pkt;
5382 ipr_reinit_ipr_cmnd_for_erp(ipr_cmd);
5384 if (!scsi_get_tag_type(scsi_cmd->device)) {
5385 ipr_erp_request_sense(ipr_cmd);
5389 cmd_pkt = &ipr_cmd->ioarcb.cmd_pkt;
5390 cmd_pkt->request_type = IPR_RQTYPE_IOACMD;
5391 cmd_pkt->cdb[0] = IPR_CANCEL_ALL_REQUESTS;
5393 ipr_do_req(ipr_cmd, ipr_erp_request_sense, ipr_timeout,
5394 IPR_CANCEL_ALL_TIMEOUT);
5398 * ipr_dump_ioasa - Dump contents of IOASA
5399 * @ioa_cfg: ioa config struct
5400 * @ipr_cmd: ipr command struct
5401 * @res: resource entry struct
5403 * This function is invoked by the interrupt handler when ops
5404 * fail. It will log the IOASA if appropriate. Only called
5410 static void ipr_dump_ioasa(struct ipr_ioa_cfg *ioa_cfg,
5411 struct ipr_cmnd *ipr_cmd, struct ipr_resource_entry *res)
5415 u32 ioasc, fd_ioasc;
5416 struct ipr_ioasa *ioasa = &ipr_cmd->s.ioasa;
5417 __be32 *ioasa_data = (__be32 *)ioasa;
5420 ioasc = be32_to_cpu(ioasa->hdr.ioasc) & IPR_IOASC_IOASC_MASK;
5421 fd_ioasc = be32_to_cpu(ioasa->hdr.fd_ioasc) & IPR_IOASC_IOASC_MASK;
5426 if (ioa_cfg->log_level < IPR_DEFAULT_LOG_LEVEL)
5429 if (ioasc == IPR_IOASC_BUS_WAS_RESET && fd_ioasc)
5430 error_index = ipr_get_error(fd_ioasc);
5432 error_index = ipr_get_error(ioasc);
5434 if (ioa_cfg->log_level < IPR_MAX_LOG_LEVEL) {
5435 /* Don't log an error if the IOA already logged one */
5436 if (ioasa->hdr.ilid != 0)
5439 if (!ipr_is_gscsi(res))
5442 if (ipr_error_table[error_index].log_ioasa == 0)
5446 ipr_res_err(ioa_cfg, res, "%s\n", ipr_error_table[error_index].error);
5448 data_len = be16_to_cpu(ioasa->hdr.ret_stat_len);
5449 if (ioa_cfg->sis64 && sizeof(struct ipr_ioasa64) < data_len)
5450 data_len = sizeof(struct ipr_ioasa64);
5451 else if (!ioa_cfg->sis64 && sizeof(struct ipr_ioasa) < data_len)
5452 data_len = sizeof(struct ipr_ioasa);
5454 ipr_err("IOASA Dump:\n");
5456 for (i = 0; i < data_len / 4; i += 4) {
5457 ipr_err("%08X: %08X %08X %08X %08X\n", i*4,
5458 be32_to_cpu(ioasa_data[i]),
5459 be32_to_cpu(ioasa_data[i+1]),
5460 be32_to_cpu(ioasa_data[i+2]),
5461 be32_to_cpu(ioasa_data[i+3]));
5466 * ipr_gen_sense - Generate SCSI sense data from an IOASA
5468 * @sense_buf: sense data buffer
5473 static void ipr_gen_sense(struct ipr_cmnd *ipr_cmd)
5476 u8 *sense_buf = ipr_cmd->scsi_cmd->sense_buffer;
5477 struct ipr_resource_entry *res = ipr_cmd->scsi_cmd->device->hostdata;
5478 struct ipr_ioasa *ioasa = &ipr_cmd->s.ioasa;
5479 u32 ioasc = be32_to_cpu(ioasa->hdr.ioasc);
5481 memset(sense_buf, 0, SCSI_SENSE_BUFFERSIZE);
5483 if (ioasc >= IPR_FIRST_DRIVER_IOASC)
5486 ipr_cmd->scsi_cmd->result = SAM_STAT_CHECK_CONDITION;
5488 if (ipr_is_vset_device(res) &&
5489 ioasc == IPR_IOASC_MED_DO_NOT_REALLOC &&
5490 ioasa->u.vset.failing_lba_hi != 0) {
5491 sense_buf[0] = 0x72;
5492 sense_buf[1] = IPR_IOASC_SENSE_KEY(ioasc);
5493 sense_buf[2] = IPR_IOASC_SENSE_CODE(ioasc);
5494 sense_buf[3] = IPR_IOASC_SENSE_QUAL(ioasc);
5498 sense_buf[9] = 0x0A;
5499 sense_buf[10] = 0x80;
5501 failing_lba = be32_to_cpu(ioasa->u.vset.failing_lba_hi);
5503 sense_buf[12] = (failing_lba & 0xff000000) >> 24;
5504 sense_buf[13] = (failing_lba & 0x00ff0000) >> 16;
5505 sense_buf[14] = (failing_lba & 0x0000ff00) >> 8;
5506 sense_buf[15] = failing_lba & 0x000000ff;
5508 failing_lba = be32_to_cpu(ioasa->u.vset.failing_lba_lo);
5510 sense_buf[16] = (failing_lba & 0xff000000) >> 24;
5511 sense_buf[17] = (failing_lba & 0x00ff0000) >> 16;
5512 sense_buf[18] = (failing_lba & 0x0000ff00) >> 8;
5513 sense_buf[19] = failing_lba & 0x000000ff;
5515 sense_buf[0] = 0x70;
5516 sense_buf[2] = IPR_IOASC_SENSE_KEY(ioasc);
5517 sense_buf[12] = IPR_IOASC_SENSE_CODE(ioasc);
5518 sense_buf[13] = IPR_IOASC_SENSE_QUAL(ioasc);
5520 /* Illegal request */
5521 if ((IPR_IOASC_SENSE_KEY(ioasc) == 0x05) &&
5522 (be32_to_cpu(ioasa->hdr.ioasc_specific) & IPR_FIELD_POINTER_VALID)) {
5523 sense_buf[7] = 10; /* additional length */
5525 /* IOARCB was in error */
5526 if (IPR_IOASC_SENSE_CODE(ioasc) == 0x24)
5527 sense_buf[15] = 0xC0;
5528 else /* Parameter data was invalid */
5529 sense_buf[15] = 0x80;
5532 ((IPR_FIELD_POINTER_MASK &
5533 be32_to_cpu(ioasa->hdr.ioasc_specific)) >> 8) & 0xff;
5535 (IPR_FIELD_POINTER_MASK &
5536 be32_to_cpu(ioasa->hdr.ioasc_specific)) & 0xff;
5538 if (ioasc == IPR_IOASC_MED_DO_NOT_REALLOC) {
5539 if (ipr_is_vset_device(res))
5540 failing_lba = be32_to_cpu(ioasa->u.vset.failing_lba_lo);
5542 failing_lba = be32_to_cpu(ioasa->u.dasd.failing_lba);
5544 sense_buf[0] |= 0x80; /* Or in the Valid bit */
5545 sense_buf[3] = (failing_lba & 0xff000000) >> 24;
5546 sense_buf[4] = (failing_lba & 0x00ff0000) >> 16;
5547 sense_buf[5] = (failing_lba & 0x0000ff00) >> 8;
5548 sense_buf[6] = failing_lba & 0x000000ff;
5551 sense_buf[7] = 6; /* additional length */
5557 * ipr_get_autosense - Copy autosense data to sense buffer
5558 * @ipr_cmd: ipr command struct
5560 * This function copies the autosense buffer to the buffer
5561 * in the scsi_cmd, if there is autosense available.
5564 * 1 if autosense was available / 0 if not
5566 static int ipr_get_autosense(struct ipr_cmnd *ipr_cmd)
5568 struct ipr_ioasa *ioasa = &ipr_cmd->s.ioasa;
5569 struct ipr_ioasa64 *ioasa64 = &ipr_cmd->s.ioasa64;
5571 if ((be32_to_cpu(ioasa->hdr.ioasc_specific) & IPR_AUTOSENSE_VALID) == 0)
5574 if (ipr_cmd->ioa_cfg->sis64)
5575 memcpy(ipr_cmd->scsi_cmd->sense_buffer, ioasa64->auto_sense.data,
5576 min_t(u16, be16_to_cpu(ioasa64->auto_sense.auto_sense_len),
5577 SCSI_SENSE_BUFFERSIZE));
5579 memcpy(ipr_cmd->scsi_cmd->sense_buffer, ioasa->auto_sense.data,
5580 min_t(u16, be16_to_cpu(ioasa->auto_sense.auto_sense_len),
5581 SCSI_SENSE_BUFFERSIZE));
5586 * ipr_erp_start - Process an error response for a SCSI op
5587 * @ioa_cfg: ioa config struct
5588 * @ipr_cmd: ipr command struct
5590 * This function determines whether or not to initiate ERP
5591 * on the affected device.
5596 static void ipr_erp_start(struct ipr_ioa_cfg *ioa_cfg,
5597 struct ipr_cmnd *ipr_cmd)
5599 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd;
5600 struct ipr_resource_entry *res = scsi_cmd->device->hostdata;
5601 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
5602 u32 masked_ioasc = ioasc & IPR_IOASC_IOASC_MASK;
5605 ipr_scsi_eh_done(ipr_cmd);
5609 if (!ipr_is_gscsi(res) && masked_ioasc != IPR_IOASC_HW_DEV_BUS_STATUS)
5610 ipr_gen_sense(ipr_cmd);
5612 ipr_dump_ioasa(ioa_cfg, ipr_cmd, res);
5614 switch (masked_ioasc) {
5615 case IPR_IOASC_ABORTED_CMD_TERM_BY_HOST:
5616 if (ipr_is_naca_model(res))
5617 scsi_cmd->result |= (DID_ABORT << 16);
5619 scsi_cmd->result |= (DID_IMM_RETRY << 16);
5621 case IPR_IOASC_IR_RESOURCE_HANDLE:
5622 case IPR_IOASC_IR_NO_CMDS_TO_2ND_IOA:
5623 scsi_cmd->result |= (DID_NO_CONNECT << 16);
5625 case IPR_IOASC_HW_SEL_TIMEOUT:
5626 scsi_cmd->result |= (DID_NO_CONNECT << 16);
5627 if (!ipr_is_naca_model(res))
5628 res->needs_sync_complete = 1;
5630 case IPR_IOASC_SYNC_REQUIRED:
5632 res->needs_sync_complete = 1;
5633 scsi_cmd->result |= (DID_IMM_RETRY << 16);
5635 case IPR_IOASC_MED_DO_NOT_REALLOC: /* prevent retries */
5636 case IPR_IOASA_IR_DUAL_IOA_DISABLED:
5637 scsi_cmd->result |= (DID_PASSTHROUGH << 16);
5639 case IPR_IOASC_BUS_WAS_RESET:
5640 case IPR_IOASC_BUS_WAS_RESET_BY_OTHER:
5642 * Report the bus reset and ask for a retry. The device
5643 * will give CC/UA the next command.
5645 if (!res->resetting_device)
5646 scsi_report_bus_reset(ioa_cfg->host, scsi_cmd->device->channel);
5647 scsi_cmd->result |= (DID_ERROR << 16);
5648 if (!ipr_is_naca_model(res))
5649 res->needs_sync_complete = 1;
5651 case IPR_IOASC_HW_DEV_BUS_STATUS:
5652 scsi_cmd->result |= IPR_IOASC_SENSE_STATUS(ioasc);
5653 if (IPR_IOASC_SENSE_STATUS(ioasc) == SAM_STAT_CHECK_CONDITION) {
5654 if (!ipr_get_autosense(ipr_cmd)) {
5655 if (!ipr_is_naca_model(res)) {
5656 ipr_erp_cancel_all(ipr_cmd);
5661 if (!ipr_is_naca_model(res))
5662 res->needs_sync_complete = 1;
5664 case IPR_IOASC_NR_INIT_CMD_REQUIRED:
5667 if (IPR_IOASC_SENSE_KEY(ioasc) > RECOVERED_ERROR)
5668 scsi_cmd->result |= (DID_ERROR << 16);
5669 if (!ipr_is_vset_device(res) && !ipr_is_naca_model(res))
5670 res->needs_sync_complete = 1;
5674 scsi_dma_unmap(ipr_cmd->scsi_cmd);
5675 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
5676 scsi_cmd->scsi_done(scsi_cmd);
5680 * ipr_scsi_done - mid-layer done function
5681 * @ipr_cmd: ipr command struct
5683 * This function is invoked by the interrupt handler for
5684 * ops generated by the SCSI mid-layer
5689 static void ipr_scsi_done(struct ipr_cmnd *ipr_cmd)
5691 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
5692 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd;
5693 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
5695 scsi_set_resid(scsi_cmd, be32_to_cpu(ipr_cmd->s.ioasa.hdr.residual_data_len));
5697 if (likely(IPR_IOASC_SENSE_KEY(ioasc) == 0)) {
5698 scsi_dma_unmap(ipr_cmd->scsi_cmd);
5699 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
5700 scsi_cmd->scsi_done(scsi_cmd);
5702 ipr_erp_start(ioa_cfg, ipr_cmd);
5706 * ipr_queuecommand - Queue a mid-layer request
5707 * @scsi_cmd: scsi command struct
5708 * @done: done function
5710 * This function queues a request generated by the mid-layer.
5714 * SCSI_MLQUEUE_DEVICE_BUSY if device is busy
5715 * SCSI_MLQUEUE_HOST_BUSY if host is busy
5717 static int ipr_queuecommand_lck(struct scsi_cmnd *scsi_cmd,
5718 void (*done) (struct scsi_cmnd *))
5720 struct ipr_ioa_cfg *ioa_cfg;
5721 struct ipr_resource_entry *res;
5722 struct ipr_ioarcb *ioarcb;
5723 struct ipr_cmnd *ipr_cmd;
5726 scsi_cmd->scsi_done = done;
5727 ioa_cfg = (struct ipr_ioa_cfg *)scsi_cmd->device->host->hostdata;
5728 res = scsi_cmd->device->hostdata;
5729 scsi_cmd->result = (DID_OK << 16);
5732 * We are currently blocking all devices due to a host reset
5733 * We have told the host to stop giving us new requests, but
5734 * ERP ops don't count. FIXME
5736 if (unlikely(!ioa_cfg->allow_cmds && !ioa_cfg->ioa_is_dead))
5737 return SCSI_MLQUEUE_HOST_BUSY;
5740 * FIXME - Create scsi_set_host_offline interface
5741 * and the ioa_is_dead check can be removed
5743 if (unlikely(ioa_cfg->ioa_is_dead || !res)) {
5744 memset(scsi_cmd->sense_buffer, 0, SCSI_SENSE_BUFFERSIZE);
5745 scsi_cmd->result = (DID_NO_CONNECT << 16);
5746 scsi_cmd->scsi_done(scsi_cmd);
5750 if (ipr_is_gata(res) && res->sata_port)
5751 return ata_sas_queuecmd(scsi_cmd, res->sata_port->ap);
5753 ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg);
5754 ioarcb = &ipr_cmd->ioarcb;
5755 list_add_tail(&ipr_cmd->queue, &ioa_cfg->pending_q);
5757 memcpy(ioarcb->cmd_pkt.cdb, scsi_cmd->cmnd, scsi_cmd->cmd_len);
5758 ipr_cmd->scsi_cmd = scsi_cmd;
5759 ioarcb->res_handle = res->res_handle;
5760 ipr_cmd->done = ipr_scsi_done;
5761 ipr_trc_hook(ipr_cmd, IPR_TRACE_START, IPR_GET_RES_PHYS_LOC(res));
5763 if (ipr_is_gscsi(res) || ipr_is_vset_device(res)) {
5764 if (scsi_cmd->underflow == 0)
5765 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_NO_ULEN_CHK;
5767 if (res->needs_sync_complete) {
5768 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_SYNC_COMPLETE;
5769 res->needs_sync_complete = 0;
5772 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_NO_LINK_DESC;
5773 ioarcb->cmd_pkt.flags_lo |= IPR_FLAGS_LO_DELAY_AFTER_RST;
5774 ioarcb->cmd_pkt.flags_lo |= IPR_FLAGS_LO_ALIGNED_BFR;
5775 ioarcb->cmd_pkt.flags_lo |= ipr_get_task_attributes(scsi_cmd);
5778 if (scsi_cmd->cmnd[0] >= 0xC0 &&
5779 (!ipr_is_gscsi(res) || scsi_cmd->cmnd[0] == IPR_QUERY_RSRC_STATE))
5780 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_IOACMD;
5782 if (likely(rc == 0)) {
5784 rc = ipr_build_ioadl64(ioa_cfg, ipr_cmd);
5786 rc = ipr_build_ioadl(ioa_cfg, ipr_cmd);
5789 if (likely(rc == 0)) {
5791 ipr_send_command(ipr_cmd);
5793 list_move_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
5794 return SCSI_MLQUEUE_HOST_BUSY;
5800 static DEF_SCSI_QCMD(ipr_queuecommand)
5803 * ipr_ioctl - IOCTL handler
5804 * @sdev: scsi device struct
5809 * 0 on success / other on failure
5811 static int ipr_ioctl(struct scsi_device *sdev, int cmd, void __user *arg)
5813 struct ipr_resource_entry *res;
5815 res = (struct ipr_resource_entry *)sdev->hostdata;
5816 if (res && ipr_is_gata(res)) {
5817 if (cmd == HDIO_GET_IDENTITY)
5819 return ata_sas_scsi_ioctl(res->sata_port->ap, sdev, cmd, arg);
5826 * ipr_info - Get information about the card/driver
5827 * @scsi_host: scsi host struct
5830 * pointer to buffer with description string
5832 static const char * ipr_ioa_info(struct Scsi_Host *host)
5834 static char buffer[512];
5835 struct ipr_ioa_cfg *ioa_cfg;
5836 unsigned long lock_flags = 0;
5838 ioa_cfg = (struct ipr_ioa_cfg *) host->hostdata;
5840 spin_lock_irqsave(host->host_lock, lock_flags);
5841 sprintf(buffer, "IBM %X Storage Adapter", ioa_cfg->type);
5842 spin_unlock_irqrestore(host->host_lock, lock_flags);
5847 static struct scsi_host_template driver_template = {
5848 .module = THIS_MODULE,
5850 .info = ipr_ioa_info,
5852 .queuecommand = ipr_queuecommand,
5853 .eh_abort_handler = ipr_eh_abort,
5854 .eh_device_reset_handler = ipr_eh_dev_reset,
5855 .eh_host_reset_handler = ipr_eh_host_reset,
5856 .slave_alloc = ipr_slave_alloc,
5857 .slave_configure = ipr_slave_configure,
5858 .slave_destroy = ipr_slave_destroy,
5859 .target_alloc = ipr_target_alloc,
5860 .target_destroy = ipr_target_destroy,
5861 .change_queue_depth = ipr_change_queue_depth,
5862 .change_queue_type = ipr_change_queue_type,
5863 .bios_param = ipr_biosparam,
5864 .can_queue = IPR_MAX_COMMANDS,
5866 .sg_tablesize = IPR_MAX_SGLIST,
5867 .max_sectors = IPR_IOA_MAX_SECTORS,
5868 .cmd_per_lun = IPR_MAX_CMD_PER_LUN,
5869 .use_clustering = ENABLE_CLUSTERING,
5870 .shost_attrs = ipr_ioa_attrs,
5871 .sdev_attrs = ipr_dev_attrs,
5872 .proc_name = IPR_NAME
5876 * ipr_ata_phy_reset - libata phy_reset handler
5877 * @ap: ata port to reset
5880 static void ipr_ata_phy_reset(struct ata_port *ap)
5882 unsigned long flags;
5883 struct ipr_sata_port *sata_port = ap->private_data;
5884 struct ipr_resource_entry *res = sata_port->res;
5885 struct ipr_ioa_cfg *ioa_cfg = sata_port->ioa_cfg;
5889 spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
5890 while(ioa_cfg->in_reset_reload) {
5891 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
5892 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
5893 spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
5896 if (!ioa_cfg->allow_cmds)
5899 rc = ipr_device_reset(ioa_cfg, res);
5902 ap->link.device[0].class = ATA_DEV_NONE;
5906 ap->link.device[0].class = res->ata_class;
5907 if (ap->link.device[0].class == ATA_DEV_UNKNOWN)
5908 ap->link.device[0].class = ATA_DEV_NONE;
5911 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
5916 * ipr_ata_post_internal - Cleanup after an internal command
5917 * @qc: ATA queued command
5922 static void ipr_ata_post_internal(struct ata_queued_cmd *qc)
5924 struct ipr_sata_port *sata_port = qc->ap->private_data;
5925 struct ipr_ioa_cfg *ioa_cfg = sata_port->ioa_cfg;
5926 struct ipr_cmnd *ipr_cmd;
5927 unsigned long flags;
5929 spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
5930 while(ioa_cfg->in_reset_reload) {
5931 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
5932 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
5933 spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
5936 list_for_each_entry(ipr_cmd, &ioa_cfg->pending_q, queue) {
5937 if (ipr_cmd->qc == qc) {
5938 ipr_device_reset(ioa_cfg, sata_port->res);
5942 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
5946 * ipr_copy_sata_tf - Copy a SATA taskfile to an IOA data structure
5947 * @regs: destination
5948 * @tf: source ATA taskfile
5953 static void ipr_copy_sata_tf(struct ipr_ioarcb_ata_regs *regs,
5954 struct ata_taskfile *tf)
5956 regs->feature = tf->feature;
5957 regs->nsect = tf->nsect;
5958 regs->lbal = tf->lbal;
5959 regs->lbam = tf->lbam;
5960 regs->lbah = tf->lbah;
5961 regs->device = tf->device;
5962 regs->command = tf->command;
5963 regs->hob_feature = tf->hob_feature;
5964 regs->hob_nsect = tf->hob_nsect;
5965 regs->hob_lbal = tf->hob_lbal;
5966 regs->hob_lbam = tf->hob_lbam;
5967 regs->hob_lbah = tf->hob_lbah;
5968 regs->ctl = tf->ctl;
5972 * ipr_sata_done - done function for SATA commands
5973 * @ipr_cmd: ipr command struct
5975 * This function is invoked by the interrupt handler for
5976 * ops generated by the SCSI mid-layer to SATA devices
5981 static void ipr_sata_done(struct ipr_cmnd *ipr_cmd)
5983 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
5984 struct ata_queued_cmd *qc = ipr_cmd->qc;
5985 struct ipr_sata_port *sata_port = qc->ap->private_data;
5986 struct ipr_resource_entry *res = sata_port->res;
5987 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
5989 if (ipr_cmd->ioa_cfg->sis64)
5990 memcpy(&sata_port->ioasa, &ipr_cmd->s.ioasa64.u.gata,
5991 sizeof(struct ipr_ioasa_gata));
5993 memcpy(&sata_port->ioasa, &ipr_cmd->s.ioasa.u.gata,
5994 sizeof(struct ipr_ioasa_gata));
5995 ipr_dump_ioasa(ioa_cfg, ipr_cmd, res);
5997 if (be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc_specific) & IPR_ATA_DEVICE_WAS_RESET)
5998 scsi_report_device_reset(ioa_cfg->host, res->bus, res->target);
6000 if (IPR_IOASC_SENSE_KEY(ioasc) > RECOVERED_ERROR)
6001 qc->err_mask |= __ac_err_mask(sata_port->ioasa.status);
6003 qc->err_mask |= ac_err_mask(sata_port->ioasa.status);
6004 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
6005 ata_qc_complete(qc);
6009 * ipr_build_ata_ioadl64 - Build an ATA scatter/gather list
6010 * @ipr_cmd: ipr command struct
6011 * @qc: ATA queued command
6014 static void ipr_build_ata_ioadl64(struct ipr_cmnd *ipr_cmd,
6015 struct ata_queued_cmd *qc)
6017 u32 ioadl_flags = 0;
6018 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
6019 struct ipr_ioadl64_desc *ioadl64 = ipr_cmd->i.ioadl64;
6020 struct ipr_ioadl64_desc *last_ioadl64 = NULL;
6021 int len = qc->nbytes;
6022 struct scatterlist *sg;
6024 dma_addr_t dma_addr = ipr_cmd->dma_addr;
6029 if (qc->dma_dir == DMA_TO_DEVICE) {
6030 ioadl_flags = IPR_IOADL_FLAGS_WRITE;
6031 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ;
6032 } else if (qc->dma_dir == DMA_FROM_DEVICE)
6033 ioadl_flags = IPR_IOADL_FLAGS_READ;
6035 ioarcb->data_transfer_length = cpu_to_be32(len);
6037 cpu_to_be32(sizeof(struct ipr_ioadl64_desc) * ipr_cmd->dma_use_sg);
6038 ioarcb->u.sis64_addr_data.data_ioadl_addr =
6039 cpu_to_be64(dma_addr + offsetof(struct ipr_cmnd, i.ata_ioadl));
6041 for_each_sg(qc->sg, sg, qc->n_elem, si) {
6042 ioadl64->flags = cpu_to_be32(ioadl_flags);
6043 ioadl64->data_len = cpu_to_be32(sg_dma_len(sg));
6044 ioadl64->address = cpu_to_be64(sg_dma_address(sg));
6046 last_ioadl64 = ioadl64;
6050 if (likely(last_ioadl64))
6051 last_ioadl64->flags |= cpu_to_be32(IPR_IOADL_FLAGS_LAST);
6055 * ipr_build_ata_ioadl - Build an ATA scatter/gather list
6056 * @ipr_cmd: ipr command struct
6057 * @qc: ATA queued command
6060 static void ipr_build_ata_ioadl(struct ipr_cmnd *ipr_cmd,
6061 struct ata_queued_cmd *qc)
6063 u32 ioadl_flags = 0;
6064 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
6065 struct ipr_ioadl_desc *ioadl = ipr_cmd->i.ioadl;
6066 struct ipr_ioadl_desc *last_ioadl = NULL;
6067 int len = qc->nbytes;
6068 struct scatterlist *sg;
6074 if (qc->dma_dir == DMA_TO_DEVICE) {
6075 ioadl_flags = IPR_IOADL_FLAGS_WRITE;
6076 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ;
6077 ioarcb->data_transfer_length = cpu_to_be32(len);
6079 cpu_to_be32(sizeof(struct ipr_ioadl_desc) * ipr_cmd->dma_use_sg);
6080 } else if (qc->dma_dir == DMA_FROM_DEVICE) {
6081 ioadl_flags = IPR_IOADL_FLAGS_READ;
6082 ioarcb->read_data_transfer_length = cpu_to_be32(len);
6083 ioarcb->read_ioadl_len =
6084 cpu_to_be32(sizeof(struct ipr_ioadl_desc) * ipr_cmd->dma_use_sg);
6087 for_each_sg(qc->sg, sg, qc->n_elem, si) {
6088 ioadl->flags_and_data_len = cpu_to_be32(ioadl_flags | sg_dma_len(sg));
6089 ioadl->address = cpu_to_be32(sg_dma_address(sg));
6095 if (likely(last_ioadl))
6096 last_ioadl->flags_and_data_len |= cpu_to_be32(IPR_IOADL_FLAGS_LAST);
6100 * ipr_qc_issue - Issue a SATA qc to a device
6101 * @qc: queued command
6106 static unsigned int ipr_qc_issue(struct ata_queued_cmd *qc)
6108 struct ata_port *ap = qc->ap;
6109 struct ipr_sata_port *sata_port = ap->private_data;
6110 struct ipr_resource_entry *res = sata_port->res;
6111 struct ipr_ioa_cfg *ioa_cfg = sata_port->ioa_cfg;
6112 struct ipr_cmnd *ipr_cmd;
6113 struct ipr_ioarcb *ioarcb;
6114 struct ipr_ioarcb_ata_regs *regs;
6116 if (unlikely(!ioa_cfg->allow_cmds || ioa_cfg->ioa_is_dead))
6117 return AC_ERR_SYSTEM;
6119 ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg);
6120 ioarcb = &ipr_cmd->ioarcb;
6122 if (ioa_cfg->sis64) {
6123 regs = &ipr_cmd->i.ata_ioadl.regs;
6124 ioarcb->add_cmd_parms_offset = cpu_to_be16(sizeof(*ioarcb));
6126 regs = &ioarcb->u.add_data.u.regs;
6128 memset(regs, 0, sizeof(*regs));
6129 ioarcb->add_cmd_parms_len = cpu_to_be16(sizeof(*regs));
6131 list_add_tail(&ipr_cmd->queue, &ioa_cfg->pending_q);
6133 ipr_cmd->done = ipr_sata_done;
6134 ipr_cmd->ioarcb.res_handle = res->res_handle;
6135 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_ATA_PASSTHRU;
6136 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_NO_LINK_DESC;
6137 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_NO_ULEN_CHK;
6138 ipr_cmd->dma_use_sg = qc->n_elem;
6141 ipr_build_ata_ioadl64(ipr_cmd, qc);
6143 ipr_build_ata_ioadl(ipr_cmd, qc);
6145 regs->flags |= IPR_ATA_FLAG_STATUS_ON_GOOD_COMPLETION;
6146 ipr_copy_sata_tf(regs, &qc->tf);
6147 memcpy(ioarcb->cmd_pkt.cdb, qc->cdb, IPR_MAX_CDB_LEN);
6148 ipr_trc_hook(ipr_cmd, IPR_TRACE_START, IPR_GET_RES_PHYS_LOC(res));
6150 switch (qc->tf.protocol) {
6151 case ATA_PROT_NODATA:
6156 regs->flags |= IPR_ATA_FLAG_XFER_TYPE_DMA;
6159 case ATAPI_PROT_PIO:
6160 case ATAPI_PROT_NODATA:
6161 regs->flags |= IPR_ATA_FLAG_PACKET_CMD;
6164 case ATAPI_PROT_DMA:
6165 regs->flags |= IPR_ATA_FLAG_PACKET_CMD;
6166 regs->flags |= IPR_ATA_FLAG_XFER_TYPE_DMA;
6171 return AC_ERR_INVALID;
6176 ipr_send_command(ipr_cmd);
6182 * ipr_qc_fill_rtf - Read result TF
6183 * @qc: ATA queued command
6188 static bool ipr_qc_fill_rtf(struct ata_queued_cmd *qc)
6190 struct ipr_sata_port *sata_port = qc->ap->private_data;
6191 struct ipr_ioasa_gata *g = &sata_port->ioasa;
6192 struct ata_taskfile *tf = &qc->result_tf;
6194 tf->feature = g->error;
6195 tf->nsect = g->nsect;
6199 tf->device = g->device;
6200 tf->command = g->status;
6201 tf->hob_nsect = g->hob_nsect;
6202 tf->hob_lbal = g->hob_lbal;
6203 tf->hob_lbam = g->hob_lbam;
6204 tf->hob_lbah = g->hob_lbah;
6205 tf->ctl = g->alt_status;
6210 static struct ata_port_operations ipr_sata_ops = {
6211 .phy_reset = ipr_ata_phy_reset,
6212 .hardreset = ipr_sata_reset,
6213 .post_internal_cmd = ipr_ata_post_internal,
6214 .qc_prep = ata_noop_qc_prep,
6215 .qc_issue = ipr_qc_issue,
6216 .qc_fill_rtf = ipr_qc_fill_rtf,
6217 .port_start = ata_sas_port_start,
6218 .port_stop = ata_sas_port_stop
6221 static struct ata_port_info sata_port_info = {
6222 .flags = ATA_FLAG_SATA | ATA_FLAG_NO_LEGACY | ATA_FLAG_SATA_RESET |
6223 ATA_FLAG_MMIO | ATA_FLAG_PIO_DMA,
6224 .pio_mask = 0x10, /* pio4 */
6226 .udma_mask = 0x7f, /* udma0-6 */
6227 .port_ops = &ipr_sata_ops
6230 #ifdef CONFIG_PPC_PSERIES
6231 static const u16 ipr_blocked_processors[] = {
6243 * ipr_invalid_adapter - Determine if this adapter is supported on this hardware
6244 * @ioa_cfg: ioa cfg struct
6246 * Adapters that use Gemstone revision < 3.1 do not work reliably on
6247 * certain pSeries hardware. This function determines if the given
6248 * adapter is in one of these confgurations or not.
6251 * 1 if adapter is not supported / 0 if adapter is supported
6253 static int ipr_invalid_adapter(struct ipr_ioa_cfg *ioa_cfg)
6257 if ((ioa_cfg->type == 0x5702) && (ioa_cfg->pdev->revision < 4)) {
6258 for (i = 0; i < ARRAY_SIZE(ipr_blocked_processors); i++){
6259 if (__is_processor(ipr_blocked_processors[i]))
6266 #define ipr_invalid_adapter(ioa_cfg) 0
6270 * ipr_ioa_bringdown_done - IOA bring down completion.
6271 * @ipr_cmd: ipr command struct
6273 * This function processes the completion of an adapter bring down.
6274 * It wakes any reset sleepers.
6279 static int ipr_ioa_bringdown_done(struct ipr_cmnd *ipr_cmd)
6281 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6284 ioa_cfg->in_reset_reload = 0;
6285 ioa_cfg->reset_retries = 0;
6286 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
6287 wake_up_all(&ioa_cfg->reset_wait_q);
6289 spin_unlock_irq(ioa_cfg->host->host_lock);
6290 scsi_unblock_requests(ioa_cfg->host);
6291 spin_lock_irq(ioa_cfg->host->host_lock);
6294 return IPR_RC_JOB_RETURN;
6298 * ipr_ioa_reset_done - IOA reset completion.
6299 * @ipr_cmd: ipr command struct
6301 * This function processes the completion of an adapter reset.
6302 * It schedules any necessary mid-layer add/removes and
6303 * wakes any reset sleepers.
6308 static int ipr_ioa_reset_done(struct ipr_cmnd *ipr_cmd)
6310 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6311 struct ipr_resource_entry *res;
6312 struct ipr_hostrcb *hostrcb, *temp;
6316 ioa_cfg->in_reset_reload = 0;
6317 ioa_cfg->allow_cmds = 1;
6318 ioa_cfg->reset_cmd = NULL;
6319 ioa_cfg->doorbell |= IPR_RUNTIME_RESET;
6321 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) {
6322 if (ioa_cfg->allow_ml_add_del && (res->add_to_ml || res->del_from_ml)) {
6327 schedule_work(&ioa_cfg->work_q);
6329 list_for_each_entry_safe(hostrcb, temp, &ioa_cfg->hostrcb_free_q, queue) {
6330 list_del(&hostrcb->queue);
6331 if (i++ < IPR_NUM_LOG_HCAMS)
6332 ipr_send_hcam(ioa_cfg, IPR_HCAM_CDB_OP_CODE_LOG_DATA, hostrcb);
6334 ipr_send_hcam(ioa_cfg, IPR_HCAM_CDB_OP_CODE_CONFIG_CHANGE, hostrcb);
6337 scsi_report_bus_reset(ioa_cfg->host, IPR_VSET_BUS);
6338 dev_info(&ioa_cfg->pdev->dev, "IOA initialized.\n");
6340 ioa_cfg->reset_retries = 0;
6341 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
6342 wake_up_all(&ioa_cfg->reset_wait_q);
6344 spin_unlock(ioa_cfg->host->host_lock);
6345 scsi_unblock_requests(ioa_cfg->host);
6346 spin_lock(ioa_cfg->host->host_lock);
6348 if (!ioa_cfg->allow_cmds)
6349 scsi_block_requests(ioa_cfg->host);
6352 return IPR_RC_JOB_RETURN;
6356 * ipr_set_sup_dev_dflt - Initialize a Set Supported Device buffer
6357 * @supported_dev: supported device struct
6358 * @vpids: vendor product id struct
6363 static void ipr_set_sup_dev_dflt(struct ipr_supported_device *supported_dev,
6364 struct ipr_std_inq_vpids *vpids)
6366 memset(supported_dev, 0, sizeof(struct ipr_supported_device));
6367 memcpy(&supported_dev->vpids, vpids, sizeof(struct ipr_std_inq_vpids));
6368 supported_dev->num_records = 1;
6369 supported_dev->data_length =
6370 cpu_to_be16(sizeof(struct ipr_supported_device));
6371 supported_dev->reserved = 0;
6375 * ipr_set_supported_devs - Send Set Supported Devices for a device
6376 * @ipr_cmd: ipr command struct
6378 * This function sends a Set Supported Devices to the adapter
6381 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
6383 static int ipr_set_supported_devs(struct ipr_cmnd *ipr_cmd)
6385 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6386 struct ipr_supported_device *supp_dev = &ioa_cfg->vpd_cbs->supp_dev;
6387 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
6388 struct ipr_resource_entry *res = ipr_cmd->u.res;
6390 ipr_cmd->job_step = ipr_ioa_reset_done;
6392 list_for_each_entry_continue(res, &ioa_cfg->used_res_q, queue) {
6393 if (!ipr_is_scsi_disk(res))
6396 ipr_cmd->u.res = res;
6397 ipr_set_sup_dev_dflt(supp_dev, &res->std_inq_data.vpids);
6399 ioarcb->res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE);
6400 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ;
6401 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_IOACMD;
6403 ioarcb->cmd_pkt.cdb[0] = IPR_SET_SUPPORTED_DEVICES;
6404 ioarcb->cmd_pkt.cdb[1] = IPR_SET_ALL_SUPPORTED_DEVICES;
6405 ioarcb->cmd_pkt.cdb[7] = (sizeof(struct ipr_supported_device) >> 8) & 0xff;
6406 ioarcb->cmd_pkt.cdb[8] = sizeof(struct ipr_supported_device) & 0xff;
6408 ipr_init_ioadl(ipr_cmd,
6409 ioa_cfg->vpd_cbs_dma +
6410 offsetof(struct ipr_misc_cbs, supp_dev),
6411 sizeof(struct ipr_supported_device),
6412 IPR_IOADL_FLAGS_WRITE_LAST);
6414 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout,
6415 IPR_SET_SUP_DEVICE_TIMEOUT);
6417 if (!ioa_cfg->sis64)
6418 ipr_cmd->job_step = ipr_set_supported_devs;
6419 return IPR_RC_JOB_RETURN;
6422 return IPR_RC_JOB_CONTINUE;
6426 * ipr_get_mode_page - Locate specified mode page
6427 * @mode_pages: mode page buffer
6428 * @page_code: page code to find
6429 * @len: minimum required length for mode page
6432 * pointer to mode page / NULL on failure
6434 static void *ipr_get_mode_page(struct ipr_mode_pages *mode_pages,
6435 u32 page_code, u32 len)
6437 struct ipr_mode_page_hdr *mode_hdr;
6441 if (!mode_pages || (mode_pages->hdr.length == 0))
6444 length = (mode_pages->hdr.length + 1) - 4 - mode_pages->hdr.block_desc_len;
6445 mode_hdr = (struct ipr_mode_page_hdr *)
6446 (mode_pages->data + mode_pages->hdr.block_desc_len);
6449 if (IPR_GET_MODE_PAGE_CODE(mode_hdr) == page_code) {
6450 if (mode_hdr->page_length >= (len - sizeof(struct ipr_mode_page_hdr)))
6454 page_length = (sizeof(struct ipr_mode_page_hdr) +
6455 mode_hdr->page_length);
6456 length -= page_length;
6457 mode_hdr = (struct ipr_mode_page_hdr *)
6458 ((unsigned long)mode_hdr + page_length);
6465 * ipr_check_term_power - Check for term power errors
6466 * @ioa_cfg: ioa config struct
6467 * @mode_pages: IOAFP mode pages buffer
6469 * Check the IOAFP's mode page 28 for term power errors
6474 static void ipr_check_term_power(struct ipr_ioa_cfg *ioa_cfg,
6475 struct ipr_mode_pages *mode_pages)
6479 struct ipr_dev_bus_entry *bus;
6480 struct ipr_mode_page28 *mode_page;
6482 mode_page = ipr_get_mode_page(mode_pages, 0x28,
6483 sizeof(struct ipr_mode_page28));
6485 entry_length = mode_page->entry_length;
6487 bus = mode_page->bus;
6489 for (i = 0; i < mode_page->num_entries; i++) {
6490 if (bus->flags & IPR_SCSI_ATTR_NO_TERM_PWR) {
6491 dev_err(&ioa_cfg->pdev->dev,
6492 "Term power is absent on scsi bus %d\n",
6496 bus = (struct ipr_dev_bus_entry *)((char *)bus + entry_length);
6501 * ipr_scsi_bus_speed_limit - Limit the SCSI speed based on SES table
6502 * @ioa_cfg: ioa config struct
6504 * Looks through the config table checking for SES devices. If
6505 * the SES device is in the SES table indicating a maximum SCSI
6506 * bus speed, the speed is limited for the bus.
6511 static void ipr_scsi_bus_speed_limit(struct ipr_ioa_cfg *ioa_cfg)
6516 for (i = 0; i < IPR_MAX_NUM_BUSES; i++) {
6517 max_xfer_rate = ipr_get_max_scsi_speed(ioa_cfg, i,
6518 ioa_cfg->bus_attr[i].bus_width);
6520 if (max_xfer_rate < ioa_cfg->bus_attr[i].max_xfer_rate)
6521 ioa_cfg->bus_attr[i].max_xfer_rate = max_xfer_rate;
6526 * ipr_modify_ioafp_mode_page_28 - Modify IOAFP Mode Page 28
6527 * @ioa_cfg: ioa config struct
6528 * @mode_pages: mode page 28 buffer
6530 * Updates mode page 28 based on driver configuration
6535 static void ipr_modify_ioafp_mode_page_28(struct ipr_ioa_cfg *ioa_cfg,
6536 struct ipr_mode_pages *mode_pages)
6538 int i, entry_length;
6539 struct ipr_dev_bus_entry *bus;
6540 struct ipr_bus_attributes *bus_attr;
6541 struct ipr_mode_page28 *mode_page;
6543 mode_page = ipr_get_mode_page(mode_pages, 0x28,
6544 sizeof(struct ipr_mode_page28));
6546 entry_length = mode_page->entry_length;
6548 /* Loop for each device bus entry */
6549 for (i = 0, bus = mode_page->bus;
6550 i < mode_page->num_entries;
6551 i++, bus = (struct ipr_dev_bus_entry *)((u8 *)bus + entry_length)) {
6552 if (bus->res_addr.bus > IPR_MAX_NUM_BUSES) {
6553 dev_err(&ioa_cfg->pdev->dev,
6554 "Invalid resource address reported: 0x%08X\n",
6555 IPR_GET_PHYS_LOC(bus->res_addr));
6559 bus_attr = &ioa_cfg->bus_attr[i];
6560 bus->extended_reset_delay = IPR_EXTENDED_RESET_DELAY;
6561 bus->bus_width = bus_attr->bus_width;
6562 bus->max_xfer_rate = cpu_to_be32(bus_attr->max_xfer_rate);
6563 bus->flags &= ~IPR_SCSI_ATTR_QAS_MASK;
6564 if (bus_attr->qas_enabled)
6565 bus->flags |= IPR_SCSI_ATTR_ENABLE_QAS;
6567 bus->flags |= IPR_SCSI_ATTR_DISABLE_QAS;
6572 * ipr_build_mode_select - Build a mode select command
6573 * @ipr_cmd: ipr command struct
6574 * @res_handle: resource handle to send command to
6575 * @parm: Byte 2 of Mode Sense command
6576 * @dma_addr: DMA buffer address
6577 * @xfer_len: data transfer length
6582 static void ipr_build_mode_select(struct ipr_cmnd *ipr_cmd,
6583 __be32 res_handle, u8 parm,
6584 dma_addr_t dma_addr, u8 xfer_len)
6586 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
6588 ioarcb->res_handle = res_handle;
6589 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_SCSICDB;
6590 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ;
6591 ioarcb->cmd_pkt.cdb[0] = MODE_SELECT;
6592 ioarcb->cmd_pkt.cdb[1] = parm;
6593 ioarcb->cmd_pkt.cdb[4] = xfer_len;
6595 ipr_init_ioadl(ipr_cmd, dma_addr, xfer_len, IPR_IOADL_FLAGS_WRITE_LAST);
6599 * ipr_ioafp_mode_select_page28 - Issue Mode Select Page 28 to IOA
6600 * @ipr_cmd: ipr command struct
6602 * This function sets up the SCSI bus attributes and sends
6603 * a Mode Select for Page 28 to activate them.
6608 static int ipr_ioafp_mode_select_page28(struct ipr_cmnd *ipr_cmd)
6610 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6611 struct ipr_mode_pages *mode_pages = &ioa_cfg->vpd_cbs->mode_pages;
6615 ipr_scsi_bus_speed_limit(ioa_cfg);
6616 ipr_check_term_power(ioa_cfg, mode_pages);
6617 ipr_modify_ioafp_mode_page_28(ioa_cfg, mode_pages);
6618 length = mode_pages->hdr.length + 1;
6619 mode_pages->hdr.length = 0;
6621 ipr_build_mode_select(ipr_cmd, cpu_to_be32(IPR_IOA_RES_HANDLE), 0x11,
6622 ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, mode_pages),
6625 ipr_cmd->job_step = ipr_set_supported_devs;
6626 ipr_cmd->u.res = list_entry(ioa_cfg->used_res_q.next,
6627 struct ipr_resource_entry, queue);
6628 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT);
6631 return IPR_RC_JOB_RETURN;
6635 * ipr_build_mode_sense - Builds a mode sense command
6636 * @ipr_cmd: ipr command struct
6637 * @res: resource entry struct
6638 * @parm: Byte 2 of mode sense command
6639 * @dma_addr: DMA address of mode sense buffer
6640 * @xfer_len: Size of DMA buffer
6645 static void ipr_build_mode_sense(struct ipr_cmnd *ipr_cmd,
6647 u8 parm, dma_addr_t dma_addr, u8 xfer_len)
6649 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
6651 ioarcb->res_handle = res_handle;
6652 ioarcb->cmd_pkt.cdb[0] = MODE_SENSE;
6653 ioarcb->cmd_pkt.cdb[2] = parm;
6654 ioarcb->cmd_pkt.cdb[4] = xfer_len;
6655 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_SCSICDB;
6657 ipr_init_ioadl(ipr_cmd, dma_addr, xfer_len, IPR_IOADL_FLAGS_READ_LAST);
6661 * ipr_reset_cmd_failed - Handle failure of IOA reset command
6662 * @ipr_cmd: ipr command struct
6664 * This function handles the failure of an IOA bringup command.
6669 static int ipr_reset_cmd_failed(struct ipr_cmnd *ipr_cmd)
6671 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6672 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
6674 dev_err(&ioa_cfg->pdev->dev,
6675 "0x%02X failed with IOASC: 0x%08X\n",
6676 ipr_cmd->ioarcb.cmd_pkt.cdb[0], ioasc);
6678 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
6679 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
6680 return IPR_RC_JOB_RETURN;
6684 * ipr_reset_mode_sense_failed - Handle failure of IOAFP mode sense
6685 * @ipr_cmd: ipr command struct
6687 * This function handles the failure of a Mode Sense to the IOAFP.
6688 * Some adapters do not handle all mode pages.
6691 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
6693 static int ipr_reset_mode_sense_failed(struct ipr_cmnd *ipr_cmd)
6695 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6696 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
6698 if (ioasc == IPR_IOASC_IR_INVALID_REQ_TYPE_OR_PKT) {
6699 ipr_cmd->job_step = ipr_set_supported_devs;
6700 ipr_cmd->u.res = list_entry(ioa_cfg->used_res_q.next,
6701 struct ipr_resource_entry, queue);
6702 return IPR_RC_JOB_CONTINUE;
6705 return ipr_reset_cmd_failed(ipr_cmd);
6709 * ipr_ioafp_mode_sense_page28 - Issue Mode Sense Page 28 to IOA
6710 * @ipr_cmd: ipr command struct
6712 * This function send a Page 28 mode sense to the IOA to
6713 * retrieve SCSI bus attributes.
6718 static int ipr_ioafp_mode_sense_page28(struct ipr_cmnd *ipr_cmd)
6720 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6723 ipr_build_mode_sense(ipr_cmd, cpu_to_be32(IPR_IOA_RES_HANDLE),
6724 0x28, ioa_cfg->vpd_cbs_dma +
6725 offsetof(struct ipr_misc_cbs, mode_pages),
6726 sizeof(struct ipr_mode_pages));
6728 ipr_cmd->job_step = ipr_ioafp_mode_select_page28;
6729 ipr_cmd->job_step_failed = ipr_reset_mode_sense_failed;
6731 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT);
6734 return IPR_RC_JOB_RETURN;
6738 * ipr_ioafp_mode_select_page24 - Issue Mode Select to IOA
6739 * @ipr_cmd: ipr command struct
6741 * This function enables dual IOA RAID support if possible.
6746 static int ipr_ioafp_mode_select_page24(struct ipr_cmnd *ipr_cmd)
6748 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6749 struct ipr_mode_pages *mode_pages = &ioa_cfg->vpd_cbs->mode_pages;
6750 struct ipr_mode_page24 *mode_page;
6754 mode_page = ipr_get_mode_page(mode_pages, 0x24,
6755 sizeof(struct ipr_mode_page24));
6758 mode_page->flags |= IPR_ENABLE_DUAL_IOA_AF;
6760 length = mode_pages->hdr.length + 1;
6761 mode_pages->hdr.length = 0;
6763 ipr_build_mode_select(ipr_cmd, cpu_to_be32(IPR_IOA_RES_HANDLE), 0x11,
6764 ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, mode_pages),
6767 ipr_cmd->job_step = ipr_ioafp_mode_sense_page28;
6768 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT);
6771 return IPR_RC_JOB_RETURN;
6775 * ipr_reset_mode_sense_page24_failed - Handle failure of IOAFP mode sense
6776 * @ipr_cmd: ipr command struct
6778 * This function handles the failure of a Mode Sense to the IOAFP.
6779 * Some adapters do not handle all mode pages.
6782 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
6784 static int ipr_reset_mode_sense_page24_failed(struct ipr_cmnd *ipr_cmd)
6786 u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
6788 if (ioasc == IPR_IOASC_IR_INVALID_REQ_TYPE_OR_PKT) {
6789 ipr_cmd->job_step = ipr_ioafp_mode_sense_page28;
6790 return IPR_RC_JOB_CONTINUE;
6793 return ipr_reset_cmd_failed(ipr_cmd);
6797 * ipr_ioafp_mode_sense_page24 - Issue Page 24 Mode Sense to IOA
6798 * @ipr_cmd: ipr command struct
6800 * This function send a mode sense to the IOA to retrieve
6801 * the IOA Advanced Function Control mode page.
6806 static int ipr_ioafp_mode_sense_page24(struct ipr_cmnd *ipr_cmd)
6808 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6811 ipr_build_mode_sense(ipr_cmd, cpu_to_be32(IPR_IOA_RES_HANDLE),
6812 0x24, ioa_cfg->vpd_cbs_dma +
6813 offsetof(struct ipr_misc_cbs, mode_pages),
6814 sizeof(struct ipr_mode_pages));
6816 ipr_cmd->job_step = ipr_ioafp_mode_select_page24;
6817 ipr_cmd->job_step_failed = ipr_reset_mode_sense_page24_failed;
6819 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT);
6822 return IPR_RC_JOB_RETURN;
6826 * ipr_init_res_table - Initialize the resource table
6827 * @ipr_cmd: ipr command struct
6829 * This function looks through the existing resource table, comparing
6830 * it with the config table. This function will take care of old/new
6831 * devices and schedule adding/removing them from the mid-layer
6835 * IPR_RC_JOB_CONTINUE
6837 static int ipr_init_res_table(struct ipr_cmnd *ipr_cmd)
6839 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6840 struct ipr_resource_entry *res, *temp;
6841 struct ipr_config_table_entry_wrapper cfgtew;
6842 int entries, found, flag, i;
6847 flag = ioa_cfg->u.cfg_table64->hdr64.flags;
6849 flag = ioa_cfg->u.cfg_table->hdr.flags;
6851 if (flag & IPR_UCODE_DOWNLOAD_REQ)
6852 dev_err(&ioa_cfg->pdev->dev, "Microcode download required\n");
6854 list_for_each_entry_safe(res, temp, &ioa_cfg->used_res_q, queue)
6855 list_move_tail(&res->queue, &old_res);
6858 entries = be16_to_cpu(ioa_cfg->u.cfg_table64->hdr64.num_entries);
6860 entries = ioa_cfg->u.cfg_table->hdr.num_entries;
6862 for (i = 0; i < entries; i++) {
6864 cfgtew.u.cfgte64 = &ioa_cfg->u.cfg_table64->dev[i];
6866 cfgtew.u.cfgte = &ioa_cfg->u.cfg_table->dev[i];
6869 list_for_each_entry_safe(res, temp, &old_res, queue) {
6870 if (ipr_is_same_device(res, &cfgtew)) {
6871 list_move_tail(&res->queue, &ioa_cfg->used_res_q);
6878 if (list_empty(&ioa_cfg->free_res_q)) {
6879 dev_err(&ioa_cfg->pdev->dev, "Too many devices attached\n");
6884 res = list_entry(ioa_cfg->free_res_q.next,
6885 struct ipr_resource_entry, queue);
6886 list_move_tail(&res->queue, &ioa_cfg->used_res_q);
6887 ipr_init_res_entry(res, &cfgtew);
6889 } else if (res->sdev && (ipr_is_vset_device(res) || ipr_is_scsi_disk(res)))
6890 res->sdev->allow_restart = 1;
6893 ipr_update_res_entry(res, &cfgtew);
6896 list_for_each_entry_safe(res, temp, &old_res, queue) {
6898 res->del_from_ml = 1;
6899 res->res_handle = IPR_INVALID_RES_HANDLE;
6900 list_move_tail(&res->queue, &ioa_cfg->used_res_q);
6904 list_for_each_entry_safe(res, temp, &old_res, queue) {
6905 ipr_clear_res_target(res);
6906 list_move_tail(&res->queue, &ioa_cfg->free_res_q);
6909 if (ioa_cfg->dual_raid && ipr_dual_ioa_raid)
6910 ipr_cmd->job_step = ipr_ioafp_mode_sense_page24;
6912 ipr_cmd->job_step = ipr_ioafp_mode_sense_page28;
6915 return IPR_RC_JOB_CONTINUE;
6919 * ipr_ioafp_query_ioa_cfg - Send a Query IOA Config to the adapter.
6920 * @ipr_cmd: ipr command struct
6922 * This function sends a Query IOA Configuration command
6923 * to the adapter to retrieve the IOA configuration table.
6928 static int ipr_ioafp_query_ioa_cfg(struct ipr_cmnd *ipr_cmd)
6930 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6931 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
6932 struct ipr_inquiry_page3 *ucode_vpd = &ioa_cfg->vpd_cbs->page3_data;
6933 struct ipr_inquiry_cap *cap = &ioa_cfg->vpd_cbs->cap;
6936 if (cap->cap & IPR_CAP_DUAL_IOA_RAID)
6937 ioa_cfg->dual_raid = 1;
6938 dev_info(&ioa_cfg->pdev->dev, "Adapter firmware version: %02X%02X%02X%02X\n",
6939 ucode_vpd->major_release, ucode_vpd->card_type,
6940 ucode_vpd->minor_release[0], ucode_vpd->minor_release[1]);
6941 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_IOACMD;
6942 ioarcb->res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE);
6944 ioarcb->cmd_pkt.cdb[0] = IPR_QUERY_IOA_CONFIG;
6945 ioarcb->cmd_pkt.cdb[6] = (ioa_cfg->cfg_table_size >> 16) & 0xff;
6946 ioarcb->cmd_pkt.cdb[7] = (ioa_cfg->cfg_table_size >> 8) & 0xff;
6947 ioarcb->cmd_pkt.cdb[8] = ioa_cfg->cfg_table_size & 0xff;
6949 ipr_init_ioadl(ipr_cmd, ioa_cfg->cfg_table_dma, ioa_cfg->cfg_table_size,
6950 IPR_IOADL_FLAGS_READ_LAST);
6952 ipr_cmd->job_step = ipr_init_res_table;
6954 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT);
6957 return IPR_RC_JOB_RETURN;
6961 * ipr_ioafp_inquiry - Send an Inquiry to the adapter.
6962 * @ipr_cmd: ipr command struct
6964 * This utility function sends an inquiry to the adapter.
6969 static void ipr_ioafp_inquiry(struct ipr_cmnd *ipr_cmd, u8 flags, u8 page,
6970 dma_addr_t dma_addr, u8 xfer_len)
6972 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
6975 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_SCSICDB;
6976 ioarcb->res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE);
6978 ioarcb->cmd_pkt.cdb[0] = INQUIRY;
6979 ioarcb->cmd_pkt.cdb[1] = flags;
6980 ioarcb->cmd_pkt.cdb[2] = page;
6981 ioarcb->cmd_pkt.cdb[4] = xfer_len;
6983 ipr_init_ioadl(ipr_cmd, dma_addr, xfer_len, IPR_IOADL_FLAGS_READ_LAST);
6985 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT);
6990 * ipr_inquiry_page_supported - Is the given inquiry page supported
6991 * @page0: inquiry page 0 buffer
6994 * This function determines if the specified inquiry page is supported.
6997 * 1 if page is supported / 0 if not
6999 static int ipr_inquiry_page_supported(struct ipr_inquiry_page0 *page0, u8 page)
7003 for (i = 0; i < min_t(u8, page0->len, IPR_INQUIRY_PAGE0_ENTRIES); i++)
7004 if (page0->page[i] == page)
7011 * ipr_ioafp_cap_inquiry - Send a Page 0xD0 Inquiry to the adapter.
7012 * @ipr_cmd: ipr command struct
7014 * This function sends a Page 0xD0 inquiry to the adapter
7015 * to retrieve adapter capabilities.
7018 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
7020 static int ipr_ioafp_cap_inquiry(struct ipr_cmnd *ipr_cmd)
7022 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7023 struct ipr_inquiry_page0 *page0 = &ioa_cfg->vpd_cbs->page0_data;
7024 struct ipr_inquiry_cap *cap = &ioa_cfg->vpd_cbs->cap;
7027 ipr_cmd->job_step = ipr_ioafp_query_ioa_cfg;
7028 memset(cap, 0, sizeof(*cap));
7030 if (ipr_inquiry_page_supported(page0, 0xD0)) {
7031 ipr_ioafp_inquiry(ipr_cmd, 1, 0xD0,
7032 ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, cap),
7033 sizeof(struct ipr_inquiry_cap));
7034 return IPR_RC_JOB_RETURN;
7038 return IPR_RC_JOB_CONTINUE;
7042 * ipr_ioafp_page3_inquiry - Send a Page 3 Inquiry to the adapter.
7043 * @ipr_cmd: ipr command struct
7045 * This function sends a Page 3 inquiry to the adapter
7046 * to retrieve software VPD information.
7049 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
7051 static int ipr_ioafp_page3_inquiry(struct ipr_cmnd *ipr_cmd)
7053 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7057 ipr_cmd->job_step = ipr_ioafp_cap_inquiry;
7059 ipr_ioafp_inquiry(ipr_cmd, 1, 3,
7060 ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, page3_data),
7061 sizeof(struct ipr_inquiry_page3));
7064 return IPR_RC_JOB_RETURN;
7068 * ipr_ioafp_page0_inquiry - Send a Page 0 Inquiry to the adapter.
7069 * @ipr_cmd: ipr command struct
7071 * This function sends a Page 0 inquiry to the adapter
7072 * to retrieve supported inquiry pages.
7075 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
7077 static int ipr_ioafp_page0_inquiry(struct ipr_cmnd *ipr_cmd)
7079 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7084 /* Grab the type out of the VPD and store it away */
7085 memcpy(type, ioa_cfg->vpd_cbs->ioa_vpd.std_inq_data.vpids.product_id, 4);
7087 ioa_cfg->type = simple_strtoul((char *)type, NULL, 16);
7089 ipr_cmd->job_step = ipr_ioafp_page3_inquiry;
7091 ipr_ioafp_inquiry(ipr_cmd, 1, 0,
7092 ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, page0_data),
7093 sizeof(struct ipr_inquiry_page0));
7096 return IPR_RC_JOB_RETURN;
7100 * ipr_ioafp_std_inquiry - Send a Standard Inquiry to the adapter.
7101 * @ipr_cmd: ipr command struct
7103 * This function sends a standard inquiry to the adapter.
7108 static int ipr_ioafp_std_inquiry(struct ipr_cmnd *ipr_cmd)
7110 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7113 ipr_cmd->job_step = ipr_ioafp_page0_inquiry;
7115 ipr_ioafp_inquiry(ipr_cmd, 0, 0,
7116 ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, ioa_vpd),
7117 sizeof(struct ipr_ioa_vpd));
7120 return IPR_RC_JOB_RETURN;
7124 * ipr_ioafp_identify_hrrq - Send Identify Host RRQ.
7125 * @ipr_cmd: ipr command struct
7127 * This function send an Identify Host Request Response Queue
7128 * command to establish the HRRQ with the adapter.
7133 static int ipr_ioafp_identify_hrrq(struct ipr_cmnd *ipr_cmd)
7135 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7136 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
7139 dev_info(&ioa_cfg->pdev->dev, "Starting IOA initialization sequence.\n");
7141 ioarcb->cmd_pkt.cdb[0] = IPR_ID_HOST_RR_Q;
7142 ioarcb->res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE);
7144 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_IOACMD;
7146 ioarcb->cmd_pkt.cdb[1] = 0x1;
7147 ioarcb->cmd_pkt.cdb[2] =
7148 ((u64) ioa_cfg->host_rrq_dma >> 24) & 0xff;
7149 ioarcb->cmd_pkt.cdb[3] =
7150 ((u64) ioa_cfg->host_rrq_dma >> 16) & 0xff;
7151 ioarcb->cmd_pkt.cdb[4] =
7152 ((u64) ioa_cfg->host_rrq_dma >> 8) & 0xff;
7153 ioarcb->cmd_pkt.cdb[5] =
7154 ((u64) ioa_cfg->host_rrq_dma) & 0xff;
7155 ioarcb->cmd_pkt.cdb[7] =
7156 ((sizeof(u32) * IPR_NUM_CMD_BLKS) >> 8) & 0xff;
7157 ioarcb->cmd_pkt.cdb[8] =
7158 (sizeof(u32) * IPR_NUM_CMD_BLKS) & 0xff;
7160 if (ioa_cfg->sis64) {
7161 ioarcb->cmd_pkt.cdb[10] =
7162 ((u64) ioa_cfg->host_rrq_dma >> 56) & 0xff;
7163 ioarcb->cmd_pkt.cdb[11] =
7164 ((u64) ioa_cfg->host_rrq_dma >> 48) & 0xff;
7165 ioarcb->cmd_pkt.cdb[12] =
7166 ((u64) ioa_cfg->host_rrq_dma >> 40) & 0xff;
7167 ioarcb->cmd_pkt.cdb[13] =
7168 ((u64) ioa_cfg->host_rrq_dma >> 32) & 0xff;
7171 ipr_cmd->job_step = ipr_ioafp_std_inquiry;
7173 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT);
7176 return IPR_RC_JOB_RETURN;
7180 * ipr_reset_timer_done - Adapter reset timer function
7181 * @ipr_cmd: ipr command struct
7183 * Description: This function is used in adapter reset processing
7184 * for timing events. If the reset_cmd pointer in the IOA
7185 * config struct is not this adapter's we are doing nested
7186 * resets and fail_all_ops will take care of freeing the
7192 static void ipr_reset_timer_done(struct ipr_cmnd *ipr_cmd)
7194 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7195 unsigned long lock_flags = 0;
7197 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
7199 if (ioa_cfg->reset_cmd == ipr_cmd) {
7200 list_del(&ipr_cmd->queue);
7201 ipr_cmd->done(ipr_cmd);
7204 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
7208 * ipr_reset_start_timer - Start a timer for adapter reset job
7209 * @ipr_cmd: ipr command struct
7210 * @timeout: timeout value
7212 * Description: This function is used in adapter reset processing
7213 * for timing events. If the reset_cmd pointer in the IOA
7214 * config struct is not this adapter's we are doing nested
7215 * resets and fail_all_ops will take care of freeing the
7221 static void ipr_reset_start_timer(struct ipr_cmnd *ipr_cmd,
7222 unsigned long timeout)
7224 list_add_tail(&ipr_cmd->queue, &ipr_cmd->ioa_cfg->pending_q);
7225 ipr_cmd->done = ipr_reset_ioa_job;
7227 ipr_cmd->timer.data = (unsigned long) ipr_cmd;
7228 ipr_cmd->timer.expires = jiffies + timeout;
7229 ipr_cmd->timer.function = (void (*)(unsigned long))ipr_reset_timer_done;
7230 add_timer(&ipr_cmd->timer);
7234 * ipr_init_ioa_mem - Initialize ioa_cfg control block
7235 * @ioa_cfg: ioa cfg struct
7240 static void ipr_init_ioa_mem(struct ipr_ioa_cfg *ioa_cfg)
7242 memset(ioa_cfg->host_rrq, 0, sizeof(u32) * IPR_NUM_CMD_BLKS);
7244 /* Initialize Host RRQ pointers */
7245 ioa_cfg->hrrq_start = ioa_cfg->host_rrq;
7246 ioa_cfg->hrrq_end = &ioa_cfg->host_rrq[IPR_NUM_CMD_BLKS - 1];
7247 ioa_cfg->hrrq_curr = ioa_cfg->hrrq_start;
7248 ioa_cfg->toggle_bit = 1;
7250 /* Zero out config table */
7251 memset(ioa_cfg->u.cfg_table, 0, ioa_cfg->cfg_table_size);
7255 * ipr_reset_next_stage - Process IPL stage change based on feedback register.
7256 * @ipr_cmd: ipr command struct
7259 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
7261 static int ipr_reset_next_stage(struct ipr_cmnd *ipr_cmd)
7263 unsigned long stage, stage_time;
7265 volatile u32 int_reg;
7266 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7269 feedback = readl(ioa_cfg->regs.init_feedback_reg);
7270 stage = feedback & IPR_IPL_INIT_STAGE_MASK;
7271 stage_time = feedback & IPR_IPL_INIT_STAGE_TIME_MASK;
7273 ipr_dbg("IPL stage = 0x%lx, IPL stage time = %ld\n", stage, stage_time);
7275 /* sanity check the stage_time value */
7276 if (stage_time == 0)
7277 stage_time = IPR_IPL_INIT_DEFAULT_STAGE_TIME;
7278 else if (stage_time < IPR_IPL_INIT_MIN_STAGE_TIME)
7279 stage_time = IPR_IPL_INIT_MIN_STAGE_TIME;
7280 else if (stage_time > IPR_LONG_OPERATIONAL_TIMEOUT)
7281 stage_time = IPR_LONG_OPERATIONAL_TIMEOUT;
7283 if (stage == IPR_IPL_INIT_STAGE_UNKNOWN) {
7284 writel(IPR_PCII_IPL_STAGE_CHANGE, ioa_cfg->regs.set_interrupt_mask_reg);
7285 int_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg);
7286 stage_time = ioa_cfg->transop_timeout;
7287 ipr_cmd->job_step = ipr_ioafp_identify_hrrq;
7288 } else if (stage == IPR_IPL_INIT_STAGE_TRANSOP) {
7289 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg32);
7290 if (int_reg & IPR_PCII_IOA_TRANS_TO_OPER) {
7291 ipr_cmd->job_step = ipr_ioafp_identify_hrrq;
7292 maskval = IPR_PCII_IPL_STAGE_CHANGE;
7293 maskval = (maskval << 32) | IPR_PCII_IOA_TRANS_TO_OPER;
7294 writeq(maskval, ioa_cfg->regs.set_interrupt_mask_reg);
7295 int_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg);
7296 return IPR_RC_JOB_CONTINUE;
7300 ipr_cmd->timer.data = (unsigned long) ipr_cmd;
7301 ipr_cmd->timer.expires = jiffies + stage_time * HZ;
7302 ipr_cmd->timer.function = (void (*)(unsigned long))ipr_oper_timeout;
7303 ipr_cmd->done = ipr_reset_ioa_job;
7304 add_timer(&ipr_cmd->timer);
7305 list_add_tail(&ipr_cmd->queue, &ioa_cfg->pending_q);
7307 return IPR_RC_JOB_RETURN;
7311 * ipr_reset_enable_ioa - Enable the IOA following a reset.
7312 * @ipr_cmd: ipr command struct
7314 * This function reinitializes some control blocks and
7315 * enables destructive diagnostics on the adapter.
7320 static int ipr_reset_enable_ioa(struct ipr_cmnd *ipr_cmd)
7322 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7323 volatile u32 int_reg;
7324 volatile u64 maskval;
7327 ipr_cmd->job_step = ipr_ioafp_identify_hrrq;
7328 ipr_init_ioa_mem(ioa_cfg);
7330 ioa_cfg->allow_interrupts = 1;
7331 if (ioa_cfg->sis64) {
7332 /* Set the adapter to the correct endian mode. */
7333 writel(IPR_ENDIAN_SWAP_KEY, ioa_cfg->regs.endian_swap_reg);
7334 int_reg = readl(ioa_cfg->regs.endian_swap_reg);
7337 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg32);
7339 if (int_reg & IPR_PCII_IOA_TRANS_TO_OPER) {
7340 writel((IPR_PCII_ERROR_INTERRUPTS | IPR_PCII_HRRQ_UPDATED),
7341 ioa_cfg->regs.clr_interrupt_mask_reg32);
7342 int_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg);
7343 return IPR_RC_JOB_CONTINUE;
7346 /* Enable destructive diagnostics on IOA */
7347 writel(ioa_cfg->doorbell, ioa_cfg->regs.set_uproc_interrupt_reg32);
7349 if (ioa_cfg->sis64) {
7350 maskval = IPR_PCII_IPL_STAGE_CHANGE;
7351 maskval = (maskval << 32) | IPR_PCII_OPER_INTERRUPTS;
7352 writeq(maskval, ioa_cfg->regs.clr_interrupt_mask_reg);
7354 writel(IPR_PCII_OPER_INTERRUPTS, ioa_cfg->regs.clr_interrupt_mask_reg32);
7356 int_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg);
7358 dev_info(&ioa_cfg->pdev->dev, "Initializing IOA.\n");
7360 if (ioa_cfg->sis64) {
7361 ipr_cmd->job_step = ipr_reset_next_stage;
7362 return IPR_RC_JOB_CONTINUE;
7365 ipr_cmd->timer.data = (unsigned long) ipr_cmd;
7366 ipr_cmd->timer.expires = jiffies + (ioa_cfg->transop_timeout * HZ);
7367 ipr_cmd->timer.function = (void (*)(unsigned long))ipr_oper_timeout;
7368 ipr_cmd->done = ipr_reset_ioa_job;
7369 add_timer(&ipr_cmd->timer);
7370 list_add_tail(&ipr_cmd->queue, &ioa_cfg->pending_q);
7373 return IPR_RC_JOB_RETURN;
7377 * ipr_reset_wait_for_dump - Wait for a dump to timeout.
7378 * @ipr_cmd: ipr command struct
7380 * This function is invoked when an adapter dump has run out
7381 * of processing time.
7384 * IPR_RC_JOB_CONTINUE
7386 static int ipr_reset_wait_for_dump(struct ipr_cmnd *ipr_cmd)
7388 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7390 if (ioa_cfg->sdt_state == GET_DUMP)
7391 ioa_cfg->sdt_state = ABORT_DUMP;
7393 ipr_cmd->job_step = ipr_reset_alert;
7395 return IPR_RC_JOB_CONTINUE;
7399 * ipr_unit_check_no_data - Log a unit check/no data error log
7400 * @ioa_cfg: ioa config struct
7402 * Logs an error indicating the adapter unit checked, but for some
7403 * reason, we were unable to fetch the unit check buffer.
7408 static void ipr_unit_check_no_data(struct ipr_ioa_cfg *ioa_cfg)
7410 ioa_cfg->errors_logged++;
7411 dev_err(&ioa_cfg->pdev->dev, "IOA unit check with no data\n");
7415 * ipr_get_unit_check_buffer - Get the unit check buffer from the IOA
7416 * @ioa_cfg: ioa config struct
7418 * Fetches the unit check buffer from the adapter by clocking the data
7419 * through the mailbox register.
7424 static void ipr_get_unit_check_buffer(struct ipr_ioa_cfg *ioa_cfg)
7426 unsigned long mailbox;
7427 struct ipr_hostrcb *hostrcb;
7428 struct ipr_uc_sdt sdt;
7432 mailbox = readl(ioa_cfg->ioa_mailbox);
7434 if (!ioa_cfg->sis64 && !ipr_sdt_is_fmt2(mailbox)) {
7435 ipr_unit_check_no_data(ioa_cfg);
7439 memset(&sdt, 0, sizeof(struct ipr_uc_sdt));
7440 rc = ipr_get_ldump_data_section(ioa_cfg, mailbox, (__be32 *) &sdt,
7441 (sizeof(struct ipr_uc_sdt)) / sizeof(__be32));
7443 if (rc || !(sdt.entry[0].flags & IPR_SDT_VALID_ENTRY) ||
7444 ((be32_to_cpu(sdt.hdr.state) != IPR_FMT3_SDT_READY_TO_USE) &&
7445 (be32_to_cpu(sdt.hdr.state) != IPR_FMT2_SDT_READY_TO_USE))) {
7446 ipr_unit_check_no_data(ioa_cfg);
7450 /* Find length of the first sdt entry (UC buffer) */
7451 if (be32_to_cpu(sdt.hdr.state) == IPR_FMT3_SDT_READY_TO_USE)
7452 length = be32_to_cpu(sdt.entry[0].end_token);
7454 length = (be32_to_cpu(sdt.entry[0].end_token) -
7455 be32_to_cpu(sdt.entry[0].start_token)) &
7456 IPR_FMT2_MBX_ADDR_MASK;
7458 hostrcb = list_entry(ioa_cfg->hostrcb_free_q.next,
7459 struct ipr_hostrcb, queue);
7460 list_del(&hostrcb->queue);
7461 memset(&hostrcb->hcam, 0, sizeof(hostrcb->hcam));
7463 rc = ipr_get_ldump_data_section(ioa_cfg,
7464 be32_to_cpu(sdt.entry[0].start_token),
7465 (__be32 *)&hostrcb->hcam,
7466 min(length, (int)sizeof(hostrcb->hcam)) / sizeof(__be32));
7469 ipr_handle_log_data(ioa_cfg, hostrcb);
7470 ioasc = be32_to_cpu(hostrcb->hcam.u.error.fd_ioasc);
7471 if (ioasc == IPR_IOASC_NR_IOA_RESET_REQUIRED &&
7472 ioa_cfg->sdt_state == GET_DUMP)
7473 ioa_cfg->sdt_state = WAIT_FOR_DUMP;
7475 ipr_unit_check_no_data(ioa_cfg);
7477 list_add_tail(&hostrcb->queue, &ioa_cfg->hostrcb_free_q);
7481 * ipr_reset_get_unit_check_job - Call to get the unit check buffer.
7482 * @ipr_cmd: ipr command struct
7484 * Description: This function will call to get the unit check buffer.
7489 static int ipr_reset_get_unit_check_job(struct ipr_cmnd *ipr_cmd)
7491 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7494 ioa_cfg->ioa_unit_checked = 0;
7495 ipr_get_unit_check_buffer(ioa_cfg);
7496 ipr_cmd->job_step = ipr_reset_alert;
7497 ipr_reset_start_timer(ipr_cmd, 0);
7500 return IPR_RC_JOB_RETURN;
7504 * ipr_reset_restore_cfg_space - Restore PCI config space.
7505 * @ipr_cmd: ipr command struct
7507 * Description: This function restores the saved PCI config space of
7508 * the adapter, fails all outstanding ops back to the callers, and
7509 * fetches the dump/unit check if applicable to this reset.
7512 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
7514 static int ipr_reset_restore_cfg_space(struct ipr_cmnd *ipr_cmd)
7516 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7517 volatile u32 int_reg;
7521 ioa_cfg->pdev->state_saved = true;
7522 rc = pci_restore_state(ioa_cfg->pdev);
7524 if (rc != PCIBIOS_SUCCESSFUL) {
7525 ipr_cmd->s.ioasa.hdr.ioasc = cpu_to_be32(IPR_IOASC_PCI_ACCESS_ERROR);
7526 return IPR_RC_JOB_CONTINUE;
7529 if (ipr_set_pcix_cmd_reg(ioa_cfg)) {
7530 ipr_cmd->s.ioasa.hdr.ioasc = cpu_to_be32(IPR_IOASC_PCI_ACCESS_ERROR);
7531 return IPR_RC_JOB_CONTINUE;
7534 ipr_fail_all_ops(ioa_cfg);
7536 if (ioa_cfg->sis64) {
7537 /* Set the adapter to the correct endian mode. */
7538 writel(IPR_ENDIAN_SWAP_KEY, ioa_cfg->regs.endian_swap_reg);
7539 int_reg = readl(ioa_cfg->regs.endian_swap_reg);
7542 if (ioa_cfg->ioa_unit_checked) {
7543 if (ioa_cfg->sis64) {
7544 ipr_cmd->job_step = ipr_reset_get_unit_check_job;
7545 ipr_reset_start_timer(ipr_cmd, IPR_DUMP_DELAY_TIMEOUT);
7546 return IPR_RC_JOB_RETURN;
7548 ioa_cfg->ioa_unit_checked = 0;
7549 ipr_get_unit_check_buffer(ioa_cfg);
7550 ipr_cmd->job_step = ipr_reset_alert;
7551 ipr_reset_start_timer(ipr_cmd, 0);
7552 return IPR_RC_JOB_RETURN;
7556 if (ioa_cfg->in_ioa_bringdown) {
7557 ipr_cmd->job_step = ipr_ioa_bringdown_done;
7559 ipr_cmd->job_step = ipr_reset_enable_ioa;
7561 if (GET_DUMP == ioa_cfg->sdt_state) {
7562 ipr_reset_start_timer(ipr_cmd, IPR_DUMP_TIMEOUT);
7563 ipr_cmd->job_step = ipr_reset_wait_for_dump;
7564 schedule_work(&ioa_cfg->work_q);
7565 return IPR_RC_JOB_RETURN;
7570 return IPR_RC_JOB_CONTINUE;
7574 * ipr_reset_bist_done - BIST has completed on the adapter.
7575 * @ipr_cmd: ipr command struct
7577 * Description: Unblock config space and resume the reset process.
7580 * IPR_RC_JOB_CONTINUE
7582 static int ipr_reset_bist_done(struct ipr_cmnd *ipr_cmd)
7585 pci_unblock_user_cfg_access(ipr_cmd->ioa_cfg->pdev);
7586 ipr_cmd->job_step = ipr_reset_restore_cfg_space;
7588 return IPR_RC_JOB_CONTINUE;
7592 * ipr_reset_start_bist - Run BIST on the adapter.
7593 * @ipr_cmd: ipr command struct
7595 * Description: This function runs BIST on the adapter, then delays 2 seconds.
7598 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
7600 static int ipr_reset_start_bist(struct ipr_cmnd *ipr_cmd)
7602 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7603 int rc = PCIBIOS_SUCCESSFUL;
7606 pci_block_user_cfg_access(ioa_cfg->pdev);
7608 if (ioa_cfg->ipr_chip->bist_method == IPR_MMIO)
7609 writel(IPR_UPROCI_SIS64_START_BIST,
7610 ioa_cfg->regs.set_uproc_interrupt_reg32);
7612 rc = pci_write_config_byte(ioa_cfg->pdev, PCI_BIST, PCI_BIST_START);
7614 if (rc == PCIBIOS_SUCCESSFUL) {
7615 ipr_cmd->job_step = ipr_reset_bist_done;
7616 ipr_reset_start_timer(ipr_cmd, IPR_WAIT_FOR_BIST_TIMEOUT);
7617 rc = IPR_RC_JOB_RETURN;
7619 pci_unblock_user_cfg_access(ipr_cmd->ioa_cfg->pdev);
7620 ipr_cmd->s.ioasa.hdr.ioasc = cpu_to_be32(IPR_IOASC_PCI_ACCESS_ERROR);
7621 rc = IPR_RC_JOB_CONTINUE;
7629 * ipr_reset_slot_reset_done - Clear PCI reset to the adapter
7630 * @ipr_cmd: ipr command struct
7632 * Description: This clears PCI reset to the adapter and delays two seconds.
7637 static int ipr_reset_slot_reset_done(struct ipr_cmnd *ipr_cmd)
7640 pci_set_pcie_reset_state(ipr_cmd->ioa_cfg->pdev, pcie_deassert_reset);
7641 ipr_cmd->job_step = ipr_reset_bist_done;
7642 ipr_reset_start_timer(ipr_cmd, IPR_WAIT_FOR_BIST_TIMEOUT);
7644 return IPR_RC_JOB_RETURN;
7648 * ipr_reset_slot_reset - Reset the PCI slot of the adapter.
7649 * @ipr_cmd: ipr command struct
7651 * Description: This asserts PCI reset to the adapter.
7656 static int ipr_reset_slot_reset(struct ipr_cmnd *ipr_cmd)
7658 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7659 struct pci_dev *pdev = ioa_cfg->pdev;
7662 pci_block_user_cfg_access(pdev);
7663 pci_set_pcie_reset_state(pdev, pcie_warm_reset);
7664 ipr_cmd->job_step = ipr_reset_slot_reset_done;
7665 ipr_reset_start_timer(ipr_cmd, IPR_PCI_RESET_TIMEOUT);
7667 return IPR_RC_JOB_RETURN;
7671 * ipr_reset_allowed - Query whether or not IOA can be reset
7672 * @ioa_cfg: ioa config struct
7675 * 0 if reset not allowed / non-zero if reset is allowed
7677 static int ipr_reset_allowed(struct ipr_ioa_cfg *ioa_cfg)
7679 volatile u32 temp_reg;
7681 temp_reg = readl(ioa_cfg->regs.sense_interrupt_reg);
7682 return ((temp_reg & IPR_PCII_CRITICAL_OPERATION) == 0);
7686 * ipr_reset_wait_to_start_bist - Wait for permission to reset IOA.
7687 * @ipr_cmd: ipr command struct
7689 * Description: This function waits for adapter permission to run BIST,
7690 * then runs BIST. If the adapter does not give permission after a
7691 * reasonable time, we will reset the adapter anyway. The impact of
7692 * resetting the adapter without warning the adapter is the risk of
7693 * losing the persistent error log on the adapter. If the adapter is
7694 * reset while it is writing to the flash on the adapter, the flash
7695 * segment will have bad ECC and be zeroed.
7698 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
7700 static int ipr_reset_wait_to_start_bist(struct ipr_cmnd *ipr_cmd)
7702 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7703 int rc = IPR_RC_JOB_RETURN;
7705 if (!ipr_reset_allowed(ioa_cfg) && ipr_cmd->u.time_left) {
7706 ipr_cmd->u.time_left -= IPR_CHECK_FOR_RESET_TIMEOUT;
7707 ipr_reset_start_timer(ipr_cmd, IPR_CHECK_FOR_RESET_TIMEOUT);
7709 ipr_cmd->job_step = ioa_cfg->reset;
7710 rc = IPR_RC_JOB_CONTINUE;
7717 * ipr_reset_alert - Alert the adapter of a pending reset
7718 * @ipr_cmd: ipr command struct
7720 * Description: This function alerts the adapter that it will be reset.
7721 * If memory space is not currently enabled, proceed directly
7722 * to running BIST on the adapter. The timer must always be started
7723 * so we guarantee we do not run BIST from ipr_isr.
7728 static int ipr_reset_alert(struct ipr_cmnd *ipr_cmd)
7730 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7735 rc = pci_read_config_word(ioa_cfg->pdev, PCI_COMMAND, &cmd_reg);
7737 if ((rc == PCIBIOS_SUCCESSFUL) && (cmd_reg & PCI_COMMAND_MEMORY)) {
7738 ipr_mask_and_clear_interrupts(ioa_cfg, ~0);
7739 writel(IPR_UPROCI_RESET_ALERT, ioa_cfg->regs.set_uproc_interrupt_reg32);
7740 ipr_cmd->job_step = ipr_reset_wait_to_start_bist;
7742 ipr_cmd->job_step = ioa_cfg->reset;
7745 ipr_cmd->u.time_left = IPR_WAIT_FOR_RESET_TIMEOUT;
7746 ipr_reset_start_timer(ipr_cmd, IPR_CHECK_FOR_RESET_TIMEOUT);
7749 return IPR_RC_JOB_RETURN;
7753 * ipr_reset_ucode_download_done - Microcode download completion
7754 * @ipr_cmd: ipr command struct
7756 * Description: This function unmaps the microcode download buffer.
7759 * IPR_RC_JOB_CONTINUE
7761 static int ipr_reset_ucode_download_done(struct ipr_cmnd *ipr_cmd)
7763 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7764 struct ipr_sglist *sglist = ioa_cfg->ucode_sglist;
7766 pci_unmap_sg(ioa_cfg->pdev, sglist->scatterlist,
7767 sglist->num_sg, DMA_TO_DEVICE);
7769 ipr_cmd->job_step = ipr_reset_alert;
7770 return IPR_RC_JOB_CONTINUE;
7774 * ipr_reset_ucode_download - Download microcode to the adapter
7775 * @ipr_cmd: ipr command struct
7777 * Description: This function checks to see if it there is microcode
7778 * to download to the adapter. If there is, a download is performed.
7781 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
7783 static int ipr_reset_ucode_download(struct ipr_cmnd *ipr_cmd)
7785 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7786 struct ipr_sglist *sglist = ioa_cfg->ucode_sglist;
7789 ipr_cmd->job_step = ipr_reset_alert;
7792 return IPR_RC_JOB_CONTINUE;
7794 ipr_cmd->ioarcb.res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE);
7795 ipr_cmd->ioarcb.cmd_pkt.request_type = IPR_RQTYPE_SCSICDB;
7796 ipr_cmd->ioarcb.cmd_pkt.cdb[0] = WRITE_BUFFER;
7797 ipr_cmd->ioarcb.cmd_pkt.cdb[1] = IPR_WR_BUF_DOWNLOAD_AND_SAVE;
7798 ipr_cmd->ioarcb.cmd_pkt.cdb[6] = (sglist->buffer_len & 0xff0000) >> 16;
7799 ipr_cmd->ioarcb.cmd_pkt.cdb[7] = (sglist->buffer_len & 0x00ff00) >> 8;
7800 ipr_cmd->ioarcb.cmd_pkt.cdb[8] = sglist->buffer_len & 0x0000ff;
7803 ipr_build_ucode_ioadl64(ipr_cmd, sglist);
7805 ipr_build_ucode_ioadl(ipr_cmd, sglist);
7806 ipr_cmd->job_step = ipr_reset_ucode_download_done;
7808 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout,
7809 IPR_WRITE_BUFFER_TIMEOUT);
7812 return IPR_RC_JOB_RETURN;
7816 * ipr_reset_shutdown_ioa - Shutdown the adapter
7817 * @ipr_cmd: ipr command struct
7819 * Description: This function issues an adapter shutdown of the
7820 * specified type to the specified adapter as part of the
7821 * adapter reset job.
7824 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
7826 static int ipr_reset_shutdown_ioa(struct ipr_cmnd *ipr_cmd)
7828 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7829 enum ipr_shutdown_type shutdown_type = ipr_cmd->u.shutdown_type;
7830 unsigned long timeout;
7831 int rc = IPR_RC_JOB_CONTINUE;
7834 if (shutdown_type != IPR_SHUTDOWN_NONE && !ioa_cfg->ioa_is_dead) {
7835 ipr_cmd->ioarcb.res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE);
7836 ipr_cmd->ioarcb.cmd_pkt.request_type = IPR_RQTYPE_IOACMD;
7837 ipr_cmd->ioarcb.cmd_pkt.cdb[0] = IPR_IOA_SHUTDOWN;
7838 ipr_cmd->ioarcb.cmd_pkt.cdb[1] = shutdown_type;
7840 if (shutdown_type == IPR_SHUTDOWN_NORMAL)
7841 timeout = IPR_SHUTDOWN_TIMEOUT;
7842 else if (shutdown_type == IPR_SHUTDOWN_PREPARE_FOR_NORMAL)
7843 timeout = IPR_INTERNAL_TIMEOUT;
7844 else if (ioa_cfg->dual_raid && ipr_dual_ioa_raid)
7845 timeout = IPR_DUAL_IOA_ABBR_SHUTDOWN_TO;
7847 timeout = IPR_ABBREV_SHUTDOWN_TIMEOUT;
7849 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, timeout);
7851 rc = IPR_RC_JOB_RETURN;
7852 ipr_cmd->job_step = ipr_reset_ucode_download;
7854 ipr_cmd->job_step = ipr_reset_alert;
7861 * ipr_reset_ioa_job - Adapter reset job
7862 * @ipr_cmd: ipr command struct
7864 * Description: This function is the job router for the adapter reset job.
7869 static void ipr_reset_ioa_job(struct ipr_cmnd *ipr_cmd)
7872 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7875 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc);
7877 if (ioa_cfg->reset_cmd != ipr_cmd) {
7879 * We are doing nested adapter resets and this is
7880 * not the current reset job.
7882 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
7886 if (IPR_IOASC_SENSE_KEY(ioasc)) {
7887 rc = ipr_cmd->job_step_failed(ipr_cmd);
7888 if (rc == IPR_RC_JOB_RETURN)
7892 ipr_reinit_ipr_cmnd(ipr_cmd);
7893 ipr_cmd->job_step_failed = ipr_reset_cmd_failed;
7894 rc = ipr_cmd->job_step(ipr_cmd);
7895 } while(rc == IPR_RC_JOB_CONTINUE);
7899 * _ipr_initiate_ioa_reset - Initiate an adapter reset
7900 * @ioa_cfg: ioa config struct
7901 * @job_step: first job step of reset job
7902 * @shutdown_type: shutdown type
7904 * Description: This function will initiate the reset of the given adapter
7905 * starting at the selected job step.
7906 * If the caller needs to wait on the completion of the reset,
7907 * the caller must sleep on the reset_wait_q.
7912 static void _ipr_initiate_ioa_reset(struct ipr_ioa_cfg *ioa_cfg,
7913 int (*job_step) (struct ipr_cmnd *),
7914 enum ipr_shutdown_type shutdown_type)
7916 struct ipr_cmnd *ipr_cmd;
7918 ioa_cfg->in_reset_reload = 1;
7919 ioa_cfg->allow_cmds = 0;
7920 scsi_block_requests(ioa_cfg->host);
7922 ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg);
7923 ioa_cfg->reset_cmd = ipr_cmd;
7924 ipr_cmd->job_step = job_step;
7925 ipr_cmd->u.shutdown_type = shutdown_type;
7927 ipr_reset_ioa_job(ipr_cmd);
7931 * ipr_initiate_ioa_reset - Initiate an adapter reset
7932 * @ioa_cfg: ioa config struct
7933 * @shutdown_type: shutdown type
7935 * Description: This function will initiate the reset of the given adapter.
7936 * If the caller needs to wait on the completion of the reset,
7937 * the caller must sleep on the reset_wait_q.
7942 static void ipr_initiate_ioa_reset(struct ipr_ioa_cfg *ioa_cfg,
7943 enum ipr_shutdown_type shutdown_type)
7945 if (ioa_cfg->ioa_is_dead)
7948 if (ioa_cfg->in_reset_reload && ioa_cfg->sdt_state == GET_DUMP)
7949 ioa_cfg->sdt_state = ABORT_DUMP;
7951 if (ioa_cfg->reset_retries++ >= IPR_NUM_RESET_RELOAD_RETRIES) {
7952 dev_err(&ioa_cfg->pdev->dev,
7953 "IOA taken offline - error recovery failed\n");
7955 ioa_cfg->reset_retries = 0;
7956 ioa_cfg->ioa_is_dead = 1;
7958 if (ioa_cfg->in_ioa_bringdown) {
7959 ioa_cfg->reset_cmd = NULL;
7960 ioa_cfg->in_reset_reload = 0;
7961 ipr_fail_all_ops(ioa_cfg);
7962 wake_up_all(&ioa_cfg->reset_wait_q);
7964 spin_unlock_irq(ioa_cfg->host->host_lock);
7965 scsi_unblock_requests(ioa_cfg->host);
7966 spin_lock_irq(ioa_cfg->host->host_lock);
7969 ioa_cfg->in_ioa_bringdown = 1;
7970 shutdown_type = IPR_SHUTDOWN_NONE;
7974 _ipr_initiate_ioa_reset(ioa_cfg, ipr_reset_shutdown_ioa,
7979 * ipr_reset_freeze - Hold off all I/O activity
7980 * @ipr_cmd: ipr command struct
7982 * Description: If the PCI slot is frozen, hold off all I/O
7983 * activity; then, as soon as the slot is available again,
7984 * initiate an adapter reset.
7986 static int ipr_reset_freeze(struct ipr_cmnd *ipr_cmd)
7988 /* Disallow new interrupts, avoid loop */
7989 ipr_cmd->ioa_cfg->allow_interrupts = 0;
7990 list_add_tail(&ipr_cmd->queue, &ipr_cmd->ioa_cfg->pending_q);
7991 ipr_cmd->done = ipr_reset_ioa_job;
7992 return IPR_RC_JOB_RETURN;
7996 * ipr_pci_frozen - Called when slot has experienced a PCI bus error.
7997 * @pdev: PCI device struct
7999 * Description: This routine is called to tell us that the PCI bus
8000 * is down. Can't do anything here, except put the device driver
8001 * into a holding pattern, waiting for the PCI bus to come back.
8003 static void ipr_pci_frozen(struct pci_dev *pdev)
8005 unsigned long flags = 0;
8006 struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev);
8008 spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
8009 _ipr_initiate_ioa_reset(ioa_cfg, ipr_reset_freeze, IPR_SHUTDOWN_NONE);
8010 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
8014 * ipr_pci_slot_reset - Called when PCI slot has been reset.
8015 * @pdev: PCI device struct
8017 * Description: This routine is called by the pci error recovery
8018 * code after the PCI slot has been reset, just before we
8019 * should resume normal operations.
8021 static pci_ers_result_t ipr_pci_slot_reset(struct pci_dev *pdev)
8023 unsigned long flags = 0;
8024 struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev);
8026 spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
8027 if (ioa_cfg->needs_warm_reset)
8028 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
8030 _ipr_initiate_ioa_reset(ioa_cfg, ipr_reset_restore_cfg_space,
8032 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
8033 return PCI_ERS_RESULT_RECOVERED;
8037 * ipr_pci_perm_failure - Called when PCI slot is dead for good.
8038 * @pdev: PCI device struct
8040 * Description: This routine is called when the PCI bus has
8041 * permanently failed.
8043 static void ipr_pci_perm_failure(struct pci_dev *pdev)
8045 unsigned long flags = 0;
8046 struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev);
8048 spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
8049 if (ioa_cfg->sdt_state == WAIT_FOR_DUMP)
8050 ioa_cfg->sdt_state = ABORT_DUMP;
8051 ioa_cfg->reset_retries = IPR_NUM_RESET_RELOAD_RETRIES;
8052 ioa_cfg->in_ioa_bringdown = 1;
8053 ioa_cfg->allow_cmds = 0;
8054 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
8055 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
8059 * ipr_pci_error_detected - Called when a PCI error is detected.
8060 * @pdev: PCI device struct
8061 * @state: PCI channel state
8063 * Description: Called when a PCI error is detected.
8066 * PCI_ERS_RESULT_NEED_RESET or PCI_ERS_RESULT_DISCONNECT
8068 static pci_ers_result_t ipr_pci_error_detected(struct pci_dev *pdev,
8069 pci_channel_state_t state)
8072 case pci_channel_io_frozen:
8073 ipr_pci_frozen(pdev);
8074 return PCI_ERS_RESULT_NEED_RESET;
8075 case pci_channel_io_perm_failure:
8076 ipr_pci_perm_failure(pdev);
8077 return PCI_ERS_RESULT_DISCONNECT;
8082 return PCI_ERS_RESULT_NEED_RESET;
8086 * ipr_probe_ioa_part2 - Initializes IOAs found in ipr_probe_ioa(..)
8087 * @ioa_cfg: ioa cfg struct
8089 * Description: This is the second phase of adapter intialization
8090 * This function takes care of initilizing the adapter to the point
8091 * where it can accept new commands.
8094 * 0 on success / -EIO on failure
8096 static int __devinit ipr_probe_ioa_part2(struct ipr_ioa_cfg *ioa_cfg)
8099 unsigned long host_lock_flags = 0;
8102 spin_lock_irqsave(ioa_cfg->host->host_lock, host_lock_flags);
8103 dev_dbg(&ioa_cfg->pdev->dev, "ioa_cfg adx: 0x%p\n", ioa_cfg);
8104 if (ioa_cfg->needs_hard_reset) {
8105 ioa_cfg->needs_hard_reset = 0;
8106 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
8108 _ipr_initiate_ioa_reset(ioa_cfg, ipr_reset_enable_ioa,
8111 spin_unlock_irqrestore(ioa_cfg->host->host_lock, host_lock_flags);
8112 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
8113 spin_lock_irqsave(ioa_cfg->host->host_lock, host_lock_flags);
8115 if (ioa_cfg->ioa_is_dead) {
8117 } else if (ipr_invalid_adapter(ioa_cfg)) {
8121 dev_err(&ioa_cfg->pdev->dev,
8122 "Adapter not supported in this hardware configuration.\n");
8125 spin_unlock_irqrestore(ioa_cfg->host->host_lock, host_lock_flags);
8132 * ipr_free_cmd_blks - Frees command blocks allocated for an adapter
8133 * @ioa_cfg: ioa config struct
8138 static void ipr_free_cmd_blks(struct ipr_ioa_cfg *ioa_cfg)
8142 for (i = 0; i < IPR_NUM_CMD_BLKS; i++) {
8143 if (ioa_cfg->ipr_cmnd_list[i])
8144 pci_pool_free(ioa_cfg->ipr_cmd_pool,
8145 ioa_cfg->ipr_cmnd_list[i],
8146 ioa_cfg->ipr_cmnd_list_dma[i]);
8148 ioa_cfg->ipr_cmnd_list[i] = NULL;
8151 if (ioa_cfg->ipr_cmd_pool)
8152 pci_pool_destroy (ioa_cfg->ipr_cmd_pool);
8154 ioa_cfg->ipr_cmd_pool = NULL;
8158 * ipr_free_mem - Frees memory allocated for an adapter
8159 * @ioa_cfg: ioa cfg struct
8164 static void ipr_free_mem(struct ipr_ioa_cfg *ioa_cfg)
8168 kfree(ioa_cfg->res_entries);
8169 pci_free_consistent(ioa_cfg->pdev, sizeof(struct ipr_misc_cbs),
8170 ioa_cfg->vpd_cbs, ioa_cfg->vpd_cbs_dma);
8171 ipr_free_cmd_blks(ioa_cfg);
8172 pci_free_consistent(ioa_cfg->pdev, sizeof(u32) * IPR_NUM_CMD_BLKS,
8173 ioa_cfg->host_rrq, ioa_cfg->host_rrq_dma);
8174 pci_free_consistent(ioa_cfg->pdev, ioa_cfg->cfg_table_size,
8175 ioa_cfg->u.cfg_table,
8176 ioa_cfg->cfg_table_dma);
8178 for (i = 0; i < IPR_NUM_HCAMS; i++) {
8179 pci_free_consistent(ioa_cfg->pdev,
8180 sizeof(struct ipr_hostrcb),
8181 ioa_cfg->hostrcb[i],
8182 ioa_cfg->hostrcb_dma[i]);
8185 ipr_free_dump(ioa_cfg);
8186 kfree(ioa_cfg->trace);
8190 * ipr_free_all_resources - Free all allocated resources for an adapter.
8191 * @ipr_cmd: ipr command struct
8193 * This function frees all allocated resources for the
8194 * specified adapter.
8199 static void ipr_free_all_resources(struct ipr_ioa_cfg *ioa_cfg)
8201 struct pci_dev *pdev = ioa_cfg->pdev;
8204 free_irq(pdev->irq, ioa_cfg);
8205 pci_disable_msi(pdev);
8206 iounmap(ioa_cfg->hdw_dma_regs);
8207 pci_release_regions(pdev);
8208 ipr_free_mem(ioa_cfg);
8209 scsi_host_put(ioa_cfg->host);
8210 pci_disable_device(pdev);
8215 * ipr_alloc_cmd_blks - Allocate command blocks for an adapter
8216 * @ioa_cfg: ioa config struct
8219 * 0 on success / -ENOMEM on allocation failure
8221 static int __devinit ipr_alloc_cmd_blks(struct ipr_ioa_cfg *ioa_cfg)
8223 struct ipr_cmnd *ipr_cmd;
8224 struct ipr_ioarcb *ioarcb;
8225 dma_addr_t dma_addr;
8228 ioa_cfg->ipr_cmd_pool = pci_pool_create (IPR_NAME, ioa_cfg->pdev,
8229 sizeof(struct ipr_cmnd), 16, 0);
8231 if (!ioa_cfg->ipr_cmd_pool)
8234 for (i = 0; i < IPR_NUM_CMD_BLKS; i++) {
8235 ipr_cmd = pci_pool_alloc (ioa_cfg->ipr_cmd_pool, GFP_KERNEL, &dma_addr);
8238 ipr_free_cmd_blks(ioa_cfg);
8242 memset(ipr_cmd, 0, sizeof(*ipr_cmd));
8243 ioa_cfg->ipr_cmnd_list[i] = ipr_cmd;
8244 ioa_cfg->ipr_cmnd_list_dma[i] = dma_addr;
8246 ioarcb = &ipr_cmd->ioarcb;
8247 ipr_cmd->dma_addr = dma_addr;
8249 ioarcb->a.ioarcb_host_pci_addr64 = cpu_to_be64(dma_addr);
8251 ioarcb->a.ioarcb_host_pci_addr = cpu_to_be32(dma_addr);
8253 ioarcb->host_response_handle = cpu_to_be32(i << 2);
8254 if (ioa_cfg->sis64) {
8255 ioarcb->u.sis64_addr_data.data_ioadl_addr =
8256 cpu_to_be64(dma_addr + offsetof(struct ipr_cmnd, i.ioadl64));
8257 ioarcb->u.sis64_addr_data.ioasa_host_pci_addr =
8258 cpu_to_be64(dma_addr + offsetof(struct ipr_cmnd, s.ioasa64));
8260 ioarcb->write_ioadl_addr =
8261 cpu_to_be32(dma_addr + offsetof(struct ipr_cmnd, i.ioadl));
8262 ioarcb->read_ioadl_addr = ioarcb->write_ioadl_addr;
8263 ioarcb->ioasa_host_pci_addr =
8264 cpu_to_be32(dma_addr + offsetof(struct ipr_cmnd, s.ioasa));
8266 ioarcb->ioasa_len = cpu_to_be16(sizeof(struct ipr_ioasa));
8267 ipr_cmd->cmd_index = i;
8268 ipr_cmd->ioa_cfg = ioa_cfg;
8269 ipr_cmd->sense_buffer_dma = dma_addr +
8270 offsetof(struct ipr_cmnd, sense_buffer);
8272 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
8279 * ipr_alloc_mem - Allocate memory for an adapter
8280 * @ioa_cfg: ioa config struct
8283 * 0 on success / non-zero for error
8285 static int __devinit ipr_alloc_mem(struct ipr_ioa_cfg *ioa_cfg)
8287 struct pci_dev *pdev = ioa_cfg->pdev;
8288 int i, rc = -ENOMEM;
8291 ioa_cfg->res_entries = kzalloc(sizeof(struct ipr_resource_entry) *
8292 ioa_cfg->max_devs_supported, GFP_KERNEL);
8294 if (!ioa_cfg->res_entries)
8297 if (ioa_cfg->sis64) {
8298 ioa_cfg->target_ids = kzalloc(sizeof(unsigned long) *
8299 BITS_TO_LONGS(ioa_cfg->max_devs_supported), GFP_KERNEL);
8300 ioa_cfg->array_ids = kzalloc(sizeof(unsigned long) *
8301 BITS_TO_LONGS(ioa_cfg->max_devs_supported), GFP_KERNEL);
8302 ioa_cfg->vset_ids = kzalloc(sizeof(unsigned long) *
8303 BITS_TO_LONGS(ioa_cfg->max_devs_supported), GFP_KERNEL);
8306 for (i = 0; i < ioa_cfg->max_devs_supported; i++) {
8307 list_add_tail(&ioa_cfg->res_entries[i].queue, &ioa_cfg->free_res_q);
8308 ioa_cfg->res_entries[i].ioa_cfg = ioa_cfg;
8311 ioa_cfg->vpd_cbs = pci_alloc_consistent(ioa_cfg->pdev,
8312 sizeof(struct ipr_misc_cbs),
8313 &ioa_cfg->vpd_cbs_dma);
8315 if (!ioa_cfg->vpd_cbs)
8316 goto out_free_res_entries;
8318 if (ipr_alloc_cmd_blks(ioa_cfg))
8319 goto out_free_vpd_cbs;
8321 ioa_cfg->host_rrq = pci_alloc_consistent(ioa_cfg->pdev,
8322 sizeof(u32) * IPR_NUM_CMD_BLKS,
8323 &ioa_cfg->host_rrq_dma);
8325 if (!ioa_cfg->host_rrq)
8326 goto out_ipr_free_cmd_blocks;
8328 ioa_cfg->u.cfg_table = pci_alloc_consistent(ioa_cfg->pdev,
8329 ioa_cfg->cfg_table_size,
8330 &ioa_cfg->cfg_table_dma);
8332 if (!ioa_cfg->u.cfg_table)
8333 goto out_free_host_rrq;
8335 for (i = 0; i < IPR_NUM_HCAMS; i++) {
8336 ioa_cfg->hostrcb[i] = pci_alloc_consistent(ioa_cfg->pdev,
8337 sizeof(struct ipr_hostrcb),
8338 &ioa_cfg->hostrcb_dma[i]);
8340 if (!ioa_cfg->hostrcb[i])
8341 goto out_free_hostrcb_dma;
8343 ioa_cfg->hostrcb[i]->hostrcb_dma =
8344 ioa_cfg->hostrcb_dma[i] + offsetof(struct ipr_hostrcb, hcam);
8345 ioa_cfg->hostrcb[i]->ioa_cfg = ioa_cfg;
8346 list_add_tail(&ioa_cfg->hostrcb[i]->queue, &ioa_cfg->hostrcb_free_q);
8349 ioa_cfg->trace = kzalloc(sizeof(struct ipr_trace_entry) *
8350 IPR_NUM_TRACE_ENTRIES, GFP_KERNEL);
8352 if (!ioa_cfg->trace)
8353 goto out_free_hostrcb_dma;
8360 out_free_hostrcb_dma:
8362 pci_free_consistent(pdev, sizeof(struct ipr_hostrcb),
8363 ioa_cfg->hostrcb[i],
8364 ioa_cfg->hostrcb_dma[i]);
8366 pci_free_consistent(pdev, ioa_cfg->cfg_table_size,
8367 ioa_cfg->u.cfg_table,
8368 ioa_cfg->cfg_table_dma);
8370 pci_free_consistent(pdev, sizeof(u32) * IPR_NUM_CMD_BLKS,
8371 ioa_cfg->host_rrq, ioa_cfg->host_rrq_dma);
8372 out_ipr_free_cmd_blocks:
8373 ipr_free_cmd_blks(ioa_cfg);
8375 pci_free_consistent(pdev, sizeof(struct ipr_misc_cbs),
8376 ioa_cfg->vpd_cbs, ioa_cfg->vpd_cbs_dma);
8377 out_free_res_entries:
8378 kfree(ioa_cfg->res_entries);
8383 * ipr_initialize_bus_attr - Initialize SCSI bus attributes to default values
8384 * @ioa_cfg: ioa config struct
8389 static void __devinit ipr_initialize_bus_attr(struct ipr_ioa_cfg *ioa_cfg)
8393 for (i = 0; i < IPR_MAX_NUM_BUSES; i++) {
8394 ioa_cfg->bus_attr[i].bus = i;
8395 ioa_cfg->bus_attr[i].qas_enabled = 0;
8396 ioa_cfg->bus_attr[i].bus_width = IPR_DEFAULT_BUS_WIDTH;
8397 if (ipr_max_speed < ARRAY_SIZE(ipr_max_bus_speeds))
8398 ioa_cfg->bus_attr[i].max_xfer_rate = ipr_max_bus_speeds[ipr_max_speed];
8400 ioa_cfg->bus_attr[i].max_xfer_rate = IPR_U160_SCSI_RATE;
8405 * ipr_init_ioa_cfg - Initialize IOA config struct
8406 * @ioa_cfg: ioa config struct
8407 * @host: scsi host struct
8408 * @pdev: PCI dev struct
8413 static void __devinit ipr_init_ioa_cfg(struct ipr_ioa_cfg *ioa_cfg,
8414 struct Scsi_Host *host, struct pci_dev *pdev)
8416 const struct ipr_interrupt_offsets *p;
8417 struct ipr_interrupts *t;
8420 ioa_cfg->host = host;
8421 ioa_cfg->pdev = pdev;
8422 ioa_cfg->log_level = ipr_log_level;
8423 ioa_cfg->doorbell = IPR_DOORBELL;
8424 sprintf(ioa_cfg->eye_catcher, IPR_EYECATCHER);
8425 sprintf(ioa_cfg->trace_start, IPR_TRACE_START_LABEL);
8426 sprintf(ioa_cfg->ipr_free_label, IPR_FREEQ_LABEL);
8427 sprintf(ioa_cfg->ipr_pending_label, IPR_PENDQ_LABEL);
8428 sprintf(ioa_cfg->cfg_table_start, IPR_CFG_TBL_START);
8429 sprintf(ioa_cfg->resource_table_label, IPR_RES_TABLE_LABEL);
8430 sprintf(ioa_cfg->ipr_hcam_label, IPR_HCAM_LABEL);
8431 sprintf(ioa_cfg->ipr_cmd_label, IPR_CMD_LABEL);
8433 INIT_LIST_HEAD(&ioa_cfg->free_q);
8434 INIT_LIST_HEAD(&ioa_cfg->pending_q);
8435 INIT_LIST_HEAD(&ioa_cfg->hostrcb_free_q);
8436 INIT_LIST_HEAD(&ioa_cfg->hostrcb_pending_q);
8437 INIT_LIST_HEAD(&ioa_cfg->free_res_q);
8438 INIT_LIST_HEAD(&ioa_cfg->used_res_q);
8439 INIT_WORK(&ioa_cfg->work_q, ipr_worker_thread);
8440 init_waitqueue_head(&ioa_cfg->reset_wait_q);
8441 init_waitqueue_head(&ioa_cfg->msi_wait_q);
8442 ioa_cfg->sdt_state = INACTIVE;
8444 ipr_initialize_bus_attr(ioa_cfg);
8445 ioa_cfg->max_devs_supported = ipr_max_devs;
8447 if (ioa_cfg->sis64) {
8448 host->max_id = IPR_MAX_SIS64_TARGETS_PER_BUS;
8449 host->max_lun = IPR_MAX_SIS64_LUNS_PER_TARGET;
8450 if (ipr_max_devs > IPR_MAX_SIS64_DEVS)
8451 ioa_cfg->max_devs_supported = IPR_MAX_SIS64_DEVS;
8453 host->max_id = IPR_MAX_NUM_TARGETS_PER_BUS;
8454 host->max_lun = IPR_MAX_NUM_LUNS_PER_TARGET;
8455 if (ipr_max_devs > IPR_MAX_PHYSICAL_DEVS)
8456 ioa_cfg->max_devs_supported = IPR_MAX_PHYSICAL_DEVS;
8458 host->max_channel = IPR_MAX_BUS_TO_SCAN;
8459 host->unique_id = host->host_no;
8460 host->max_cmd_len = IPR_MAX_CDB_LEN;
8461 pci_set_drvdata(pdev, ioa_cfg);
8463 p = &ioa_cfg->chip_cfg->regs;
8465 base = ioa_cfg->hdw_dma_regs;
8467 t->set_interrupt_mask_reg = base + p->set_interrupt_mask_reg;
8468 t->clr_interrupt_mask_reg = base + p->clr_interrupt_mask_reg;
8469 t->clr_interrupt_mask_reg32 = base + p->clr_interrupt_mask_reg32;
8470 t->sense_interrupt_mask_reg = base + p->sense_interrupt_mask_reg;
8471 t->sense_interrupt_mask_reg32 = base + p->sense_interrupt_mask_reg32;
8472 t->clr_interrupt_reg = base + p->clr_interrupt_reg;
8473 t->clr_interrupt_reg32 = base + p->clr_interrupt_reg32;
8474 t->sense_interrupt_reg = base + p->sense_interrupt_reg;
8475 t->sense_interrupt_reg32 = base + p->sense_interrupt_reg32;
8476 t->ioarrin_reg = base + p->ioarrin_reg;
8477 t->sense_uproc_interrupt_reg = base + p->sense_uproc_interrupt_reg;
8478 t->sense_uproc_interrupt_reg32 = base + p->sense_uproc_interrupt_reg32;
8479 t->set_uproc_interrupt_reg = base + p->set_uproc_interrupt_reg;
8480 t->set_uproc_interrupt_reg32 = base + p->set_uproc_interrupt_reg32;
8481 t->clr_uproc_interrupt_reg = base + p->clr_uproc_interrupt_reg;
8482 t->clr_uproc_interrupt_reg32 = base + p->clr_uproc_interrupt_reg32;
8484 if (ioa_cfg->sis64) {
8485 t->init_feedback_reg = base + p->init_feedback_reg;
8486 t->dump_addr_reg = base + p->dump_addr_reg;
8487 t->dump_data_reg = base + p->dump_data_reg;
8488 t->endian_swap_reg = base + p->endian_swap_reg;
8493 * ipr_get_chip_info - Find adapter chip information
8494 * @dev_id: PCI device id struct
8497 * ptr to chip information on success / NULL on failure
8499 static const struct ipr_chip_t * __devinit
8500 ipr_get_chip_info(const struct pci_device_id *dev_id)
8504 for (i = 0; i < ARRAY_SIZE(ipr_chip); i++)
8505 if (ipr_chip[i].vendor == dev_id->vendor &&
8506 ipr_chip[i].device == dev_id->device)
8507 return &ipr_chip[i];
8512 * ipr_test_intr - Handle the interrupt generated in ipr_test_msi().
8513 * @pdev: PCI device struct
8515 * Description: Simply set the msi_received flag to 1 indicating that
8516 * Message Signaled Interrupts are supported.
8519 * 0 on success / non-zero on failure
8521 static irqreturn_t __devinit ipr_test_intr(int irq, void *devp)
8523 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)devp;
8524 unsigned long lock_flags = 0;
8525 irqreturn_t rc = IRQ_HANDLED;
8527 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
8529 ioa_cfg->msi_received = 1;
8530 wake_up(&ioa_cfg->msi_wait_q);
8532 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
8537 * ipr_test_msi - Test for Message Signaled Interrupt (MSI) support.
8538 * @pdev: PCI device struct
8540 * Description: The return value from pci_enable_msi() can not always be
8541 * trusted. This routine sets up and initiates a test interrupt to determine
8542 * if the interrupt is received via the ipr_test_intr() service routine.
8543 * If the tests fails, the driver will fall back to LSI.
8546 * 0 on success / non-zero on failure
8548 static int __devinit ipr_test_msi(struct ipr_ioa_cfg *ioa_cfg,
8549 struct pci_dev *pdev)
8552 volatile u32 int_reg;
8553 unsigned long lock_flags = 0;
8557 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
8558 init_waitqueue_head(&ioa_cfg->msi_wait_q);
8559 ioa_cfg->msi_received = 0;
8560 ipr_mask_and_clear_interrupts(ioa_cfg, ~IPR_PCII_IOA_TRANS_TO_OPER);
8561 writel(IPR_PCII_IO_DEBUG_ACKNOWLEDGE, ioa_cfg->regs.clr_interrupt_mask_reg32);
8562 int_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg);
8563 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
8565 rc = request_irq(pdev->irq, ipr_test_intr, 0, IPR_NAME, ioa_cfg);
8567 dev_err(&pdev->dev, "Can not assign irq %d\n", pdev->irq);
8569 } else if (ipr_debug)
8570 dev_info(&pdev->dev, "IRQ assigned: %d\n", pdev->irq);
8572 writel(IPR_PCII_IO_DEBUG_ACKNOWLEDGE, ioa_cfg->regs.sense_interrupt_reg32);
8573 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg);
8574 wait_event_timeout(ioa_cfg->msi_wait_q, ioa_cfg->msi_received, HZ);
8575 ipr_mask_and_clear_interrupts(ioa_cfg, ~IPR_PCII_IOA_TRANS_TO_OPER);
8577 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
8578 if (!ioa_cfg->msi_received) {
8579 /* MSI test failed */
8580 dev_info(&pdev->dev, "MSI test failed. Falling back to LSI.\n");
8582 } else if (ipr_debug)
8583 dev_info(&pdev->dev, "MSI test succeeded.\n");
8585 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
8587 free_irq(pdev->irq, ioa_cfg);
8595 * ipr_probe_ioa - Allocates memory and does first stage of initialization
8596 * @pdev: PCI device struct
8597 * @dev_id: PCI device id struct
8600 * 0 on success / non-zero on failure
8602 static int __devinit ipr_probe_ioa(struct pci_dev *pdev,
8603 const struct pci_device_id *dev_id)
8605 struct ipr_ioa_cfg *ioa_cfg;
8606 struct Scsi_Host *host;
8607 unsigned long ipr_regs_pci;
8608 void __iomem *ipr_regs;
8609 int rc = PCIBIOS_SUCCESSFUL;
8610 volatile u32 mask, uproc, interrupts;
8614 if ((rc = pci_enable_device(pdev))) {
8615 dev_err(&pdev->dev, "Cannot enable adapter\n");
8619 dev_info(&pdev->dev, "Found IOA with IRQ: %d\n", pdev->irq);
8621 host = scsi_host_alloc(&driver_template, sizeof(*ioa_cfg));
8624 dev_err(&pdev->dev, "call to scsi_host_alloc failed!\n");
8629 ioa_cfg = (struct ipr_ioa_cfg *)host->hostdata;
8630 memset(ioa_cfg, 0, sizeof(struct ipr_ioa_cfg));
8631 ata_host_init(&ioa_cfg->ata_host, &pdev->dev,
8632 sata_port_info.flags, &ipr_sata_ops);
8634 ioa_cfg->ipr_chip = ipr_get_chip_info(dev_id);
8636 if (!ioa_cfg->ipr_chip) {
8637 dev_err(&pdev->dev, "Unknown adapter chipset 0x%04X 0x%04X\n",
8638 dev_id->vendor, dev_id->device);
8639 goto out_scsi_host_put;
8642 /* set SIS 32 or SIS 64 */
8643 ioa_cfg->sis64 = ioa_cfg->ipr_chip->sis_type == IPR_SIS64 ? 1 : 0;
8644 ioa_cfg->chip_cfg = ioa_cfg->ipr_chip->cfg;
8646 if (ipr_transop_timeout)
8647 ioa_cfg->transop_timeout = ipr_transop_timeout;
8648 else if (dev_id->driver_data & IPR_USE_LONG_TRANSOP_TIMEOUT)
8649 ioa_cfg->transop_timeout = IPR_LONG_OPERATIONAL_TIMEOUT;
8651 ioa_cfg->transop_timeout = IPR_OPERATIONAL_TIMEOUT;
8653 ioa_cfg->revid = pdev->revision;
8655 ipr_regs_pci = pci_resource_start(pdev, 0);
8657 rc = pci_request_regions(pdev, IPR_NAME);
8660 "Couldn't register memory range of registers\n");
8661 goto out_scsi_host_put;
8664 ipr_regs = pci_ioremap_bar(pdev, 0);
8668 "Couldn't map memory range of registers\n");
8670 goto out_release_regions;
8673 ioa_cfg->hdw_dma_regs = ipr_regs;
8674 ioa_cfg->hdw_dma_regs_pci = ipr_regs_pci;
8675 ioa_cfg->ioa_mailbox = ioa_cfg->chip_cfg->mailbox + ipr_regs;
8677 ipr_init_ioa_cfg(ioa_cfg, host, pdev);
8679 pci_set_master(pdev);
8681 if (ioa_cfg->sis64) {
8682 rc = pci_set_dma_mask(pdev, DMA_BIT_MASK(64));
8684 dev_dbg(&pdev->dev, "Failed to set 64 bit PCI DMA mask\n");
8685 rc = pci_set_dma_mask(pdev, DMA_BIT_MASK(32));
8689 rc = pci_set_dma_mask(pdev, DMA_BIT_MASK(32));
8692 dev_err(&pdev->dev, "Failed to set PCI DMA mask\n");
8696 rc = pci_write_config_byte(pdev, PCI_CACHE_LINE_SIZE,
8697 ioa_cfg->chip_cfg->cache_line_size);
8699 if (rc != PCIBIOS_SUCCESSFUL) {
8700 dev_err(&pdev->dev, "Write of cache line size failed\n");
8705 /* Enable MSI style interrupts if they are supported. */
8706 if (ioa_cfg->ipr_chip->intr_type == IPR_USE_MSI && !pci_enable_msi(pdev)) {
8707 rc = ipr_test_msi(ioa_cfg, pdev);
8708 if (rc == -EOPNOTSUPP)
8709 pci_disable_msi(pdev);
8711 goto out_msi_disable;
8713 dev_info(&pdev->dev, "MSI enabled with IRQ: %d\n", pdev->irq);
8714 } else if (ipr_debug)
8715 dev_info(&pdev->dev, "Cannot enable MSI.\n");
8717 /* Save away PCI config space for use following IOA reset */
8718 rc = pci_save_state(pdev);
8720 if (rc != PCIBIOS_SUCCESSFUL) {
8721 dev_err(&pdev->dev, "Failed to save PCI config space\n");
8726 if ((rc = ipr_save_pcix_cmd_reg(ioa_cfg)))
8729 if ((rc = ipr_set_pcix_cmd_reg(ioa_cfg)))
8733 ioa_cfg->cfg_table_size = (sizeof(struct ipr_config_table_hdr64)
8734 + ((sizeof(struct ipr_config_table_entry64)
8735 * ioa_cfg->max_devs_supported)));
8737 ioa_cfg->cfg_table_size = (sizeof(struct ipr_config_table_hdr)
8738 + ((sizeof(struct ipr_config_table_entry)
8739 * ioa_cfg->max_devs_supported)));
8741 rc = ipr_alloc_mem(ioa_cfg);
8744 "Couldn't allocate enough memory for device driver!\n");
8749 * If HRRQ updated interrupt is not masked, or reset alert is set,
8750 * the card is in an unknown state and needs a hard reset
8752 mask = readl(ioa_cfg->regs.sense_interrupt_mask_reg32);
8753 interrupts = readl(ioa_cfg->regs.sense_interrupt_reg32);
8754 uproc = readl(ioa_cfg->regs.sense_uproc_interrupt_reg32);
8755 if ((mask & IPR_PCII_HRRQ_UPDATED) == 0 || (uproc & IPR_UPROCI_RESET_ALERT))
8756 ioa_cfg->needs_hard_reset = 1;
8757 if (interrupts & IPR_PCII_ERROR_INTERRUPTS)
8758 ioa_cfg->needs_hard_reset = 1;
8759 if (interrupts & IPR_PCII_IOA_UNIT_CHECKED)
8760 ioa_cfg->ioa_unit_checked = 1;
8762 ipr_mask_and_clear_interrupts(ioa_cfg, ~IPR_PCII_IOA_TRANS_TO_OPER);
8763 rc = request_irq(pdev->irq, ipr_isr,
8764 ioa_cfg->msi_received ? 0 : IRQF_SHARED,
8768 dev_err(&pdev->dev, "Couldn't register IRQ %d! rc=%d\n",
8773 if ((dev_id->driver_data & IPR_USE_PCI_WARM_RESET) ||
8774 (dev_id->device == PCI_DEVICE_ID_IBM_OBSIDIAN_E && !ioa_cfg->revid)) {
8775 ioa_cfg->needs_warm_reset = 1;
8776 ioa_cfg->reset = ipr_reset_slot_reset;
8778 ioa_cfg->reset = ipr_reset_start_bist;
8780 spin_lock(&ipr_driver_lock);
8781 list_add_tail(&ioa_cfg->queue, &ipr_ioa_head);
8782 spin_unlock(&ipr_driver_lock);
8789 ipr_free_mem(ioa_cfg);
8793 pci_disable_msi(pdev);
8794 out_release_regions:
8795 pci_release_regions(pdev);
8797 scsi_host_put(host);
8799 pci_disable_device(pdev);
8804 * ipr_scan_vsets - Scans for VSET devices
8805 * @ioa_cfg: ioa config struct
8807 * Description: Since the VSET resources do not follow SAM in that we can have
8808 * sparse LUNs with no LUN 0, we have to scan for these ourselves.
8813 static void ipr_scan_vsets(struct ipr_ioa_cfg *ioa_cfg)
8817 for (target = 0; target < IPR_MAX_NUM_TARGETS_PER_BUS; target++)
8818 for (lun = 0; lun < IPR_MAX_NUM_VSET_LUNS_PER_TARGET; lun++ )
8819 scsi_add_device(ioa_cfg->host, IPR_VSET_BUS, target, lun);
8823 * ipr_initiate_ioa_bringdown - Bring down an adapter
8824 * @ioa_cfg: ioa config struct
8825 * @shutdown_type: shutdown type
8827 * Description: This function will initiate bringing down the adapter.
8828 * This consists of issuing an IOA shutdown to the adapter
8829 * to flush the cache, and running BIST.
8830 * If the caller needs to wait on the completion of the reset,
8831 * the caller must sleep on the reset_wait_q.
8836 static void ipr_initiate_ioa_bringdown(struct ipr_ioa_cfg *ioa_cfg,
8837 enum ipr_shutdown_type shutdown_type)
8840 if (ioa_cfg->sdt_state == WAIT_FOR_DUMP)
8841 ioa_cfg->sdt_state = ABORT_DUMP;
8842 ioa_cfg->reset_retries = 0;
8843 ioa_cfg->in_ioa_bringdown = 1;
8844 ipr_initiate_ioa_reset(ioa_cfg, shutdown_type);
8849 * __ipr_remove - Remove a single adapter
8850 * @pdev: pci device struct
8852 * Adapter hot plug remove entry point.
8857 static void __ipr_remove(struct pci_dev *pdev)
8859 unsigned long host_lock_flags = 0;
8860 struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev);
8863 spin_lock_irqsave(ioa_cfg->host->host_lock, host_lock_flags);
8864 while(ioa_cfg->in_reset_reload) {
8865 spin_unlock_irqrestore(ioa_cfg->host->host_lock, host_lock_flags);
8866 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
8867 spin_lock_irqsave(ioa_cfg->host->host_lock, host_lock_flags);
8870 ipr_initiate_ioa_bringdown(ioa_cfg, IPR_SHUTDOWN_NORMAL);
8872 spin_unlock_irqrestore(ioa_cfg->host->host_lock, host_lock_flags);
8873 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
8874 flush_scheduled_work();
8875 spin_lock_irqsave(ioa_cfg->host->host_lock, host_lock_flags);
8877 spin_lock(&ipr_driver_lock);
8878 list_del(&ioa_cfg->queue);
8879 spin_unlock(&ipr_driver_lock);
8881 if (ioa_cfg->sdt_state == ABORT_DUMP)
8882 ioa_cfg->sdt_state = WAIT_FOR_DUMP;
8883 spin_unlock_irqrestore(ioa_cfg->host->host_lock, host_lock_flags);
8885 ipr_free_all_resources(ioa_cfg);
8891 * ipr_remove - IOA hot plug remove entry point
8892 * @pdev: pci device struct
8894 * Adapter hot plug remove entry point.
8899 static void __devexit ipr_remove(struct pci_dev *pdev)
8901 struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev);
8905 ipr_remove_trace_file(&ioa_cfg->host->shost_dev.kobj,
8907 ipr_remove_dump_file(&ioa_cfg->host->shost_dev.kobj,
8909 scsi_remove_host(ioa_cfg->host);
8917 * ipr_probe - Adapter hot plug add entry point
8920 * 0 on success / non-zero on failure
8922 static int __devinit ipr_probe(struct pci_dev *pdev,
8923 const struct pci_device_id *dev_id)
8925 struct ipr_ioa_cfg *ioa_cfg;
8928 rc = ipr_probe_ioa(pdev, dev_id);
8933 ioa_cfg = pci_get_drvdata(pdev);
8934 rc = ipr_probe_ioa_part2(ioa_cfg);
8941 rc = scsi_add_host(ioa_cfg->host, &pdev->dev);
8948 rc = ipr_create_trace_file(&ioa_cfg->host->shost_dev.kobj,
8952 scsi_remove_host(ioa_cfg->host);
8957 rc = ipr_create_dump_file(&ioa_cfg->host->shost_dev.kobj,
8961 ipr_remove_trace_file(&ioa_cfg->host->shost_dev.kobj,
8963 scsi_remove_host(ioa_cfg->host);
8968 scsi_scan_host(ioa_cfg->host);
8969 ipr_scan_vsets(ioa_cfg);
8970 scsi_add_device(ioa_cfg->host, IPR_IOA_BUS, IPR_IOA_TARGET, IPR_IOA_LUN);
8971 ioa_cfg->allow_ml_add_del = 1;
8972 ioa_cfg->host->max_channel = IPR_VSET_BUS;
8973 schedule_work(&ioa_cfg->work_q);
8978 * ipr_shutdown - Shutdown handler.
8979 * @pdev: pci device struct
8981 * This function is invoked upon system shutdown/reboot. It will issue
8982 * an adapter shutdown to the adapter to flush the write cache.
8987 static void ipr_shutdown(struct pci_dev *pdev)
8989 struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev);
8990 unsigned long lock_flags = 0;
8992 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
8993 while(ioa_cfg->in_reset_reload) {
8994 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
8995 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
8996 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
8999 ipr_initiate_ioa_bringdown(ioa_cfg, IPR_SHUTDOWN_NORMAL);
9000 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
9001 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
9004 static struct pci_device_id ipr_pci_table[] __devinitdata = {
9005 { PCI_VENDOR_ID_MYLEX, PCI_DEVICE_ID_IBM_GEMSTONE,
9006 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_5702, 0, 0, 0 },
9007 { PCI_VENDOR_ID_MYLEX, PCI_DEVICE_ID_IBM_GEMSTONE,
9008 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_5703, 0, 0, 0 },
9009 { PCI_VENDOR_ID_MYLEX, PCI_DEVICE_ID_IBM_GEMSTONE,
9010 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_573D, 0, 0, 0 },
9011 { PCI_VENDOR_ID_MYLEX, PCI_DEVICE_ID_IBM_GEMSTONE,
9012 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_573E, 0, 0, 0 },
9013 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CITRINE,
9014 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_571B, 0, 0, 0 },
9015 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CITRINE,
9016 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572E, 0, 0, 0 },
9017 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CITRINE,
9018 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_571A, 0, 0, 0 },
9019 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CITRINE,
9020 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_575B, 0, 0,
9021 IPR_USE_LONG_TRANSOP_TIMEOUT },
9022 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_OBSIDIAN,
9023 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572A, 0, 0, 0 },
9024 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_OBSIDIAN,
9025 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572B, 0, 0,
9026 IPR_USE_LONG_TRANSOP_TIMEOUT },
9027 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_OBSIDIAN,
9028 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_575C, 0, 0,
9029 IPR_USE_LONG_TRANSOP_TIMEOUT },
9030 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN,
9031 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572A, 0, 0, 0 },
9032 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN,
9033 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572B, 0, 0,
9034 IPR_USE_LONG_TRANSOP_TIMEOUT},
9035 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN,
9036 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_575C, 0, 0,
9037 IPR_USE_LONG_TRANSOP_TIMEOUT },
9038 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN_E,
9039 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_574E, 0, 0,
9040 IPR_USE_LONG_TRANSOP_TIMEOUT },
9041 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN_E,
9042 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57B3, 0, 0, 0 },
9043 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN_E,
9044 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57CC, 0, 0, 0 },
9045 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN_E,
9046 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57B7, 0, 0,
9047 IPR_USE_LONG_TRANSOP_TIMEOUT | IPR_USE_PCI_WARM_RESET },
9048 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_SNIPE,
9049 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_2780, 0, 0, 0 },
9050 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_SCAMP,
9051 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_571E, 0, 0, 0 },
9052 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_SCAMP,
9053 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_571F, 0, 0,
9054 IPR_USE_LONG_TRANSOP_TIMEOUT },
9055 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_SCAMP,
9056 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572F, 0, 0,
9057 IPR_USE_LONG_TRANSOP_TIMEOUT },
9058 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_FPGA_E2,
9059 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57B5, 0, 0, 0 },
9060 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_FPGA_E2,
9061 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_574D, 0, 0, 0 },
9062 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_FPGA_E2,
9063 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57B2, 0, 0, 0 },
9064 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_FPGA_E2,
9065 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57C4, 0, 0, 0 },
9066 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_ASIC_E2,
9067 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57B4, 0, 0, 0 },
9068 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_ASIC_E2,
9069 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57B1, 0, 0, 0 },
9070 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_ASIC_E2,
9071 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57C6, 0, 0, 0 },
9072 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_ASIC_E2,
9073 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_575D, 0, 0, 0 },
9074 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_ASIC_E2,
9075 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57CE, 0, 0, 0 },
9078 MODULE_DEVICE_TABLE(pci, ipr_pci_table);
9080 static struct pci_error_handlers ipr_err_handler = {
9081 .error_detected = ipr_pci_error_detected,
9082 .slot_reset = ipr_pci_slot_reset,
9085 static struct pci_driver ipr_driver = {
9087 .id_table = ipr_pci_table,
9089 .remove = __devexit_p(ipr_remove),
9090 .shutdown = ipr_shutdown,
9091 .err_handler = &ipr_err_handler,
9095 * ipr_halt_done - Shutdown prepare completion
9100 static void ipr_halt_done(struct ipr_cmnd *ipr_cmd)
9102 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
9104 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
9108 * ipr_halt - Issue shutdown prepare to all adapters
9111 * NOTIFY_OK on success / NOTIFY_DONE on failure
9113 static int ipr_halt(struct notifier_block *nb, ulong event, void *buf)
9115 struct ipr_cmnd *ipr_cmd;
9116 struct ipr_ioa_cfg *ioa_cfg;
9117 unsigned long flags = 0;
9119 if (event != SYS_RESTART && event != SYS_HALT && event != SYS_POWER_OFF)
9122 spin_lock(&ipr_driver_lock);
9124 list_for_each_entry(ioa_cfg, &ipr_ioa_head, queue) {
9125 spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
9126 if (!ioa_cfg->allow_cmds) {
9127 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
9131 ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg);
9132 ipr_cmd->ioarcb.res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE);
9133 ipr_cmd->ioarcb.cmd_pkt.request_type = IPR_RQTYPE_IOACMD;
9134 ipr_cmd->ioarcb.cmd_pkt.cdb[0] = IPR_IOA_SHUTDOWN;
9135 ipr_cmd->ioarcb.cmd_pkt.cdb[1] = IPR_SHUTDOWN_PREPARE_FOR_NORMAL;
9137 ipr_do_req(ipr_cmd, ipr_halt_done, ipr_timeout, IPR_DEVICE_RESET_TIMEOUT);
9138 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
9140 spin_unlock(&ipr_driver_lock);
9145 static struct notifier_block ipr_notifier = {
9150 * ipr_init - Module entry point
9153 * 0 on success / negative value on failure
9155 static int __init ipr_init(void)
9157 ipr_info("IBM Power RAID SCSI Device Driver version: %s %s\n",
9158 IPR_DRIVER_VERSION, IPR_DRIVER_DATE);
9160 register_reboot_notifier(&ipr_notifier);
9161 return pci_register_driver(&ipr_driver);
9165 * ipr_exit - Module unload
9167 * Module unload entry point.
9172 static void __exit ipr_exit(void)
9174 unregister_reboot_notifier(&ipr_notifier);
9175 pci_unregister_driver(&ipr_driver);
9178 module_init(ipr_init);
9179 module_exit(ipr_exit);