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/ioport.h>
63 #include <linux/delay.h>
64 #include <linux/pci.h>
65 #include <linux/wait.h>
66 #include <linux/spinlock.h>
67 #include <linux/sched.h>
68 #include <linux/interrupt.h>
69 #include <linux/blkdev.h>
70 #include <linux/firmware.h>
71 #include <linux/module.h>
72 #include <linux/moduleparam.h>
73 #include <linux/libata.h>
74 #include <linux/hdreg.h>
77 #include <asm/processor.h>
78 #include <scsi/scsi.h>
79 #include <scsi/scsi_host.h>
80 #include <scsi/scsi_tcq.h>
81 #include <scsi/scsi_eh.h>
82 #include <scsi/scsi_cmnd.h>
88 static LIST_HEAD(ipr_ioa_head);
89 static unsigned int ipr_log_level = IPR_DEFAULT_LOG_LEVEL;
90 static unsigned int ipr_max_speed = 1;
91 static int ipr_testmode = 0;
92 static unsigned int ipr_fastfail = 0;
93 static unsigned int ipr_transop_timeout = 0;
94 static unsigned int ipr_enable_cache = 1;
95 static unsigned int ipr_debug = 0;
96 static unsigned int ipr_dual_ioa_raid = 1;
97 static DEFINE_SPINLOCK(ipr_driver_lock);
99 /* This table describes the differences between DMA controller chips */
100 static const struct ipr_chip_cfg_t ipr_chip_cfg[] = {
101 { /* Gemstone, Citrine, Obsidian, and Obsidian-E */
103 .cache_line_size = 0x20,
105 .set_interrupt_mask_reg = 0x0022C,
106 .clr_interrupt_mask_reg = 0x00230,
107 .sense_interrupt_mask_reg = 0x0022C,
108 .clr_interrupt_reg = 0x00228,
109 .sense_interrupt_reg = 0x00224,
110 .ioarrin_reg = 0x00404,
111 .sense_uproc_interrupt_reg = 0x00214,
112 .set_uproc_interrupt_reg = 0x00214,
113 .clr_uproc_interrupt_reg = 0x00218
116 { /* Snipe and Scamp */
118 .cache_line_size = 0x20,
120 .set_interrupt_mask_reg = 0x00288,
121 .clr_interrupt_mask_reg = 0x0028C,
122 .sense_interrupt_mask_reg = 0x00288,
123 .clr_interrupt_reg = 0x00284,
124 .sense_interrupt_reg = 0x00280,
125 .ioarrin_reg = 0x00504,
126 .sense_uproc_interrupt_reg = 0x00290,
127 .set_uproc_interrupt_reg = 0x00290,
128 .clr_uproc_interrupt_reg = 0x00294
133 .cache_line_size = 0x20,
135 .set_interrupt_mask_reg = 0x00010,
136 .clr_interrupt_mask_reg = 0x00018,
137 .sense_interrupt_mask_reg = 0x00010,
138 .clr_interrupt_reg = 0x00008,
139 .sense_interrupt_reg = 0x00000,
140 .ioarrin_reg = 0x00070,
141 .sense_uproc_interrupt_reg = 0x00020,
142 .set_uproc_interrupt_reg = 0x00020,
143 .clr_uproc_interrupt_reg = 0x00028
148 static const struct ipr_chip_t ipr_chip[] = {
149 { PCI_VENDOR_ID_MYLEX, PCI_DEVICE_ID_IBM_GEMSTONE, IPR_USE_LSI, IPR_SIS32, &ipr_chip_cfg[0] },
150 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CITRINE, IPR_USE_LSI, IPR_SIS32, &ipr_chip_cfg[0] },
151 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_OBSIDIAN, IPR_USE_LSI, IPR_SIS32, &ipr_chip_cfg[0] },
152 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN, IPR_USE_LSI, IPR_SIS32, &ipr_chip_cfg[0] },
153 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN_E, IPR_USE_MSI, IPR_SIS32, &ipr_chip_cfg[0] },
154 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_SNIPE, IPR_USE_LSI, IPR_SIS32, &ipr_chip_cfg[1] },
155 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_SCAMP, IPR_USE_LSI, IPR_SIS32, &ipr_chip_cfg[1] }
158 static int ipr_max_bus_speeds [] = {
159 IPR_80MBs_SCSI_RATE, IPR_U160_SCSI_RATE, IPR_U320_SCSI_RATE
162 MODULE_AUTHOR("Brian King <brking@us.ibm.com>");
163 MODULE_DESCRIPTION("IBM Power RAID SCSI Adapter Driver");
164 module_param_named(max_speed, ipr_max_speed, uint, 0);
165 MODULE_PARM_DESC(max_speed, "Maximum bus speed (0-2). Default: 1=U160. Speeds: 0=80 MB/s, 1=U160, 2=U320");
166 module_param_named(log_level, ipr_log_level, uint, 0);
167 MODULE_PARM_DESC(log_level, "Set to 0 - 4 for increasing verbosity of device driver");
168 module_param_named(testmode, ipr_testmode, int, 0);
169 MODULE_PARM_DESC(testmode, "DANGEROUS!!! Allows unsupported configurations");
170 module_param_named(fastfail, ipr_fastfail, int, S_IRUGO | S_IWUSR);
171 MODULE_PARM_DESC(fastfail, "Reduce timeouts and retries");
172 module_param_named(transop_timeout, ipr_transop_timeout, int, 0);
173 MODULE_PARM_DESC(transop_timeout, "Time in seconds to wait for adapter to come operational (default: 300)");
174 module_param_named(enable_cache, ipr_enable_cache, int, 0);
175 MODULE_PARM_DESC(enable_cache, "Enable adapter's non-volatile write cache (default: 1)");
176 module_param_named(debug, ipr_debug, int, S_IRUGO | S_IWUSR);
177 MODULE_PARM_DESC(debug, "Enable device driver debugging logging. Set to 1 to enable. (default: 0)");
178 module_param_named(dual_ioa_raid, ipr_dual_ioa_raid, int, 0);
179 MODULE_PARM_DESC(dual_ioa_raid, "Enable dual adapter RAID support. Set to 1 to enable. (default: 1)");
180 MODULE_LICENSE("GPL");
181 MODULE_VERSION(IPR_DRIVER_VERSION);
183 /* A constant array of IOASCs/URCs/Error Messages */
185 struct ipr_error_table_t ipr_error_table[] = {
186 {0x00000000, 1, IPR_DEFAULT_LOG_LEVEL,
187 "8155: An unknown error was received"},
189 "Soft underlength error"},
191 "Command to be cancelled not found"},
193 "Qualified success"},
194 {0x01080000, 1, IPR_DEFAULT_LOG_LEVEL,
195 "FFFE: Soft device bus error recovered by the IOA"},
196 {0x01088100, 0, IPR_DEFAULT_LOG_LEVEL,
197 "4101: Soft device bus fabric error"},
198 {0x01170600, 0, IPR_DEFAULT_LOG_LEVEL,
199 "FFF9: Device sector reassign successful"},
200 {0x01170900, 0, IPR_DEFAULT_LOG_LEVEL,
201 "FFF7: Media error recovered by device rewrite procedures"},
202 {0x01180200, 0, IPR_DEFAULT_LOG_LEVEL,
203 "7001: IOA sector reassignment successful"},
204 {0x01180500, 0, IPR_DEFAULT_LOG_LEVEL,
205 "FFF9: Soft media error. Sector reassignment recommended"},
206 {0x01180600, 0, IPR_DEFAULT_LOG_LEVEL,
207 "FFF7: Media error recovered by IOA rewrite procedures"},
208 {0x01418000, 0, IPR_DEFAULT_LOG_LEVEL,
209 "FF3D: Soft PCI bus error recovered by the IOA"},
210 {0x01440000, 1, IPR_DEFAULT_LOG_LEVEL,
211 "FFF6: Device hardware error recovered by the IOA"},
212 {0x01448100, 0, IPR_DEFAULT_LOG_LEVEL,
213 "FFF6: Device hardware error recovered by the device"},
214 {0x01448200, 1, IPR_DEFAULT_LOG_LEVEL,
215 "FF3D: Soft IOA error recovered by the IOA"},
216 {0x01448300, 0, IPR_DEFAULT_LOG_LEVEL,
217 "FFFA: Undefined device response recovered by the IOA"},
218 {0x014A0000, 1, IPR_DEFAULT_LOG_LEVEL,
219 "FFF6: Device bus error, message or command phase"},
220 {0x014A8000, 0, IPR_DEFAULT_LOG_LEVEL,
221 "FFFE: Task Management Function failed"},
222 {0x015D0000, 0, IPR_DEFAULT_LOG_LEVEL,
223 "FFF6: Failure prediction threshold exceeded"},
224 {0x015D9200, 0, IPR_DEFAULT_LOG_LEVEL,
225 "8009: Impending cache battery pack failure"},
227 "34FF: Disk device format in progress"},
228 {0x02048000, 0, IPR_DEFAULT_LOG_LEVEL,
229 "9070: IOA requested reset"},
231 "Synchronization required"},
233 "No ready, IOA shutdown"},
235 "Not ready, IOA has been shutdown"},
236 {0x02670100, 0, IPR_DEFAULT_LOG_LEVEL,
237 "3020: Storage subsystem configuration error"},
239 "FFF5: Medium error, data unreadable, recommend reassign"},
241 "7000: Medium error, data unreadable, do not reassign"},
242 {0x03310000, 0, IPR_DEFAULT_LOG_LEVEL,
243 "FFF3: Disk media format bad"},
244 {0x04050000, 0, IPR_DEFAULT_LOG_LEVEL,
245 "3002: Addressed device failed to respond to selection"},
246 {0x04080000, 1, IPR_DEFAULT_LOG_LEVEL,
247 "3100: Device bus error"},
248 {0x04080100, 0, IPR_DEFAULT_LOG_LEVEL,
249 "3109: IOA timed out a device command"},
251 "3120: SCSI bus is not operational"},
252 {0x04088100, 0, IPR_DEFAULT_LOG_LEVEL,
253 "4100: Hard device bus fabric error"},
254 {0x04118000, 0, IPR_DEFAULT_LOG_LEVEL,
255 "9000: IOA reserved area data check"},
256 {0x04118100, 0, IPR_DEFAULT_LOG_LEVEL,
257 "9001: IOA reserved area invalid data pattern"},
258 {0x04118200, 0, IPR_DEFAULT_LOG_LEVEL,
259 "9002: IOA reserved area LRC error"},
260 {0x04320000, 0, IPR_DEFAULT_LOG_LEVEL,
261 "102E: Out of alternate sectors for disk storage"},
262 {0x04330000, 1, IPR_DEFAULT_LOG_LEVEL,
263 "FFF4: Data transfer underlength error"},
264 {0x04338000, 1, IPR_DEFAULT_LOG_LEVEL,
265 "FFF4: Data transfer overlength error"},
266 {0x043E0100, 0, IPR_DEFAULT_LOG_LEVEL,
267 "3400: Logical unit failure"},
268 {0x04408500, 0, IPR_DEFAULT_LOG_LEVEL,
269 "FFF4: Device microcode is corrupt"},
270 {0x04418000, 1, IPR_DEFAULT_LOG_LEVEL,
271 "8150: PCI bus error"},
273 "Unsupported device bus message received"},
274 {0x04440000, 1, IPR_DEFAULT_LOG_LEVEL,
275 "FFF4: Disk device problem"},
276 {0x04448200, 1, IPR_DEFAULT_LOG_LEVEL,
277 "8150: Permanent IOA failure"},
278 {0x04448300, 0, IPR_DEFAULT_LOG_LEVEL,
279 "3010: Disk device returned wrong response to IOA"},
280 {0x04448400, 0, IPR_DEFAULT_LOG_LEVEL,
281 "8151: IOA microcode error"},
283 "Device bus status error"},
284 {0x04448600, 0, IPR_DEFAULT_LOG_LEVEL,
285 "8157: IOA error requiring IOA reset to recover"},
287 "ATA device status error"},
289 "Message reject received from the device"},
290 {0x04449200, 0, IPR_DEFAULT_LOG_LEVEL,
291 "8008: A permanent cache battery pack failure occurred"},
292 {0x0444A000, 0, IPR_DEFAULT_LOG_LEVEL,
293 "9090: Disk unit has been modified after the last known status"},
294 {0x0444A200, 0, IPR_DEFAULT_LOG_LEVEL,
295 "9081: IOA detected device error"},
296 {0x0444A300, 0, IPR_DEFAULT_LOG_LEVEL,
297 "9082: IOA detected device error"},
298 {0x044A0000, 1, IPR_DEFAULT_LOG_LEVEL,
299 "3110: Device bus error, message or command phase"},
300 {0x044A8000, 1, IPR_DEFAULT_LOG_LEVEL,
301 "3110: SAS Command / Task Management Function failed"},
302 {0x04670400, 0, IPR_DEFAULT_LOG_LEVEL,
303 "9091: Incorrect hardware configuration change has been detected"},
304 {0x04678000, 0, IPR_DEFAULT_LOG_LEVEL,
305 "9073: Invalid multi-adapter configuration"},
306 {0x04678100, 0, IPR_DEFAULT_LOG_LEVEL,
307 "4010: Incorrect connection between cascaded expanders"},
308 {0x04678200, 0, IPR_DEFAULT_LOG_LEVEL,
309 "4020: Connections exceed IOA design limits"},
310 {0x04678300, 0, IPR_DEFAULT_LOG_LEVEL,
311 "4030: Incorrect multipath connection"},
312 {0x04679000, 0, IPR_DEFAULT_LOG_LEVEL,
313 "4110: Unsupported enclosure function"},
314 {0x046E0000, 0, IPR_DEFAULT_LOG_LEVEL,
315 "FFF4: Command to logical unit failed"},
317 "Illegal request, invalid request type or request packet"},
319 "Illegal request, invalid resource handle"},
321 "Illegal request, commands not allowed to this device"},
323 "Illegal request, command not allowed to a secondary adapter"},
325 "Illegal request, invalid field in parameter list"},
327 "Illegal request, parameter not supported"},
329 "Illegal request, parameter value invalid"},
331 "Illegal request, command sequence error"},
333 "Illegal request, dual adapter support not enabled"},
334 {0x06040500, 0, IPR_DEFAULT_LOG_LEVEL,
335 "9031: Array protection temporarily suspended, protection resuming"},
336 {0x06040600, 0, IPR_DEFAULT_LOG_LEVEL,
337 "9040: Array protection temporarily suspended, protection resuming"},
338 {0x06288000, 0, IPR_DEFAULT_LOG_LEVEL,
339 "3140: Device bus not ready to ready transition"},
340 {0x06290000, 0, IPR_DEFAULT_LOG_LEVEL,
341 "FFFB: SCSI bus was reset"},
343 "FFFE: SCSI bus transition to single ended"},
345 "FFFE: SCSI bus transition to LVD"},
346 {0x06298000, 0, IPR_DEFAULT_LOG_LEVEL,
347 "FFFB: SCSI bus was reset by another initiator"},
348 {0x063F0300, 0, IPR_DEFAULT_LOG_LEVEL,
349 "3029: A device replacement has occurred"},
350 {0x064C8000, 0, IPR_DEFAULT_LOG_LEVEL,
351 "9051: IOA cache data exists for a missing or failed device"},
352 {0x064C8100, 0, IPR_DEFAULT_LOG_LEVEL,
353 "9055: Auxiliary cache IOA contains cache data needed by the primary IOA"},
354 {0x06670100, 0, IPR_DEFAULT_LOG_LEVEL,
355 "9025: Disk unit is not supported at its physical location"},
356 {0x06670600, 0, IPR_DEFAULT_LOG_LEVEL,
357 "3020: IOA detected a SCSI bus configuration error"},
358 {0x06678000, 0, IPR_DEFAULT_LOG_LEVEL,
359 "3150: SCSI bus configuration error"},
360 {0x06678100, 0, IPR_DEFAULT_LOG_LEVEL,
361 "9074: Asymmetric advanced function disk configuration"},
362 {0x06678300, 0, IPR_DEFAULT_LOG_LEVEL,
363 "4040: Incomplete multipath connection between IOA and enclosure"},
364 {0x06678400, 0, IPR_DEFAULT_LOG_LEVEL,
365 "4041: Incomplete multipath connection between enclosure and device"},
366 {0x06678500, 0, IPR_DEFAULT_LOG_LEVEL,
367 "9075: Incomplete multipath connection between IOA and remote IOA"},
368 {0x06678600, 0, IPR_DEFAULT_LOG_LEVEL,
369 "9076: Configuration error, missing remote IOA"},
370 {0x06679100, 0, IPR_DEFAULT_LOG_LEVEL,
371 "4050: Enclosure does not support a required multipath function"},
372 {0x06690000, 0, IPR_DEFAULT_LOG_LEVEL,
373 "4070: Logically bad block written on device"},
374 {0x06690200, 0, IPR_DEFAULT_LOG_LEVEL,
375 "9041: Array protection temporarily suspended"},
376 {0x06698200, 0, IPR_DEFAULT_LOG_LEVEL,
377 "9042: Corrupt array parity detected on specified device"},
378 {0x066B0200, 0, IPR_DEFAULT_LOG_LEVEL,
379 "9030: Array no longer protected due to missing or failed disk unit"},
380 {0x066B8000, 0, IPR_DEFAULT_LOG_LEVEL,
381 "9071: Link operational transition"},
382 {0x066B8100, 0, IPR_DEFAULT_LOG_LEVEL,
383 "9072: Link not operational transition"},
384 {0x066B8200, 0, IPR_DEFAULT_LOG_LEVEL,
385 "9032: Array exposed but still protected"},
386 {0x066B8300, 0, IPR_DEFAULT_LOG_LEVEL + 1,
387 "70DD: Device forced failed by disrupt device command"},
388 {0x066B9100, 0, IPR_DEFAULT_LOG_LEVEL,
389 "4061: Multipath redundancy level got better"},
390 {0x066B9200, 0, IPR_DEFAULT_LOG_LEVEL,
391 "4060: Multipath redundancy level got worse"},
393 "Failure due to other device"},
394 {0x07278000, 0, IPR_DEFAULT_LOG_LEVEL,
395 "9008: IOA does not support functions expected by devices"},
396 {0x07278100, 0, IPR_DEFAULT_LOG_LEVEL,
397 "9010: Cache data associated with attached devices cannot be found"},
398 {0x07278200, 0, IPR_DEFAULT_LOG_LEVEL,
399 "9011: Cache data belongs to devices other than those attached"},
400 {0x07278400, 0, IPR_DEFAULT_LOG_LEVEL,
401 "9020: Array missing 2 or more devices with only 1 device present"},
402 {0x07278500, 0, IPR_DEFAULT_LOG_LEVEL,
403 "9021: Array missing 2 or more devices with 2 or more devices present"},
404 {0x07278600, 0, IPR_DEFAULT_LOG_LEVEL,
405 "9022: Exposed array is missing a required device"},
406 {0x07278700, 0, IPR_DEFAULT_LOG_LEVEL,
407 "9023: Array member(s) not at required physical locations"},
408 {0x07278800, 0, IPR_DEFAULT_LOG_LEVEL,
409 "9024: Array not functional due to present hardware configuration"},
410 {0x07278900, 0, IPR_DEFAULT_LOG_LEVEL,
411 "9026: Array not functional due to present hardware configuration"},
412 {0x07278A00, 0, IPR_DEFAULT_LOG_LEVEL,
413 "9027: Array is missing a device and parity is out of sync"},
414 {0x07278B00, 0, IPR_DEFAULT_LOG_LEVEL,
415 "9028: Maximum number of arrays already exist"},
416 {0x07278C00, 0, IPR_DEFAULT_LOG_LEVEL,
417 "9050: Required cache data cannot be located for a disk unit"},
418 {0x07278D00, 0, IPR_DEFAULT_LOG_LEVEL,
419 "9052: Cache data exists for a device that has been modified"},
420 {0x07278F00, 0, IPR_DEFAULT_LOG_LEVEL,
421 "9054: IOA resources not available due to previous problems"},
422 {0x07279100, 0, IPR_DEFAULT_LOG_LEVEL,
423 "9092: Disk unit requires initialization before use"},
424 {0x07279200, 0, IPR_DEFAULT_LOG_LEVEL,
425 "9029: Incorrect hardware configuration change has been detected"},
426 {0x07279600, 0, IPR_DEFAULT_LOG_LEVEL,
427 "9060: One or more disk pairs are missing from an array"},
428 {0x07279700, 0, IPR_DEFAULT_LOG_LEVEL,
429 "9061: One or more disks are missing from an array"},
430 {0x07279800, 0, IPR_DEFAULT_LOG_LEVEL,
431 "9062: One or more disks are missing from an array"},
432 {0x07279900, 0, IPR_DEFAULT_LOG_LEVEL,
433 "9063: Maximum number of functional arrays has been exceeded"},
435 "Aborted command, invalid descriptor"},
437 "Command terminated by host"}
440 static const struct ipr_ses_table_entry ipr_ses_table[] = {
441 { "2104-DL1 ", "XXXXXXXXXXXXXXXX", 80 },
442 { "2104-TL1 ", "XXXXXXXXXXXXXXXX", 80 },
443 { "HSBP07M P U2SCSI", "XXXXXXXXXXXXXXXX", 80 }, /* Hidive 7 slot */
444 { "HSBP05M P U2SCSI", "XXXXXXXXXXXXXXXX", 80 }, /* Hidive 5 slot */
445 { "HSBP05M S U2SCSI", "XXXXXXXXXXXXXXXX", 80 }, /* Bowtie */
446 { "HSBP06E ASU2SCSI", "XXXXXXXXXXXXXXXX", 80 }, /* MartinFenning */
447 { "2104-DU3 ", "XXXXXXXXXXXXXXXX", 160 },
448 { "2104-TU3 ", "XXXXXXXXXXXXXXXX", 160 },
449 { "HSBP04C RSU2SCSI", "XXXXXXX*XXXXXXXX", 160 },
450 { "HSBP06E RSU2SCSI", "XXXXXXX*XXXXXXXX", 160 },
451 { "St V1S2 ", "XXXXXXXXXXXXXXXX", 160 },
452 { "HSBPD4M PU3SCSI", "XXXXXXX*XXXXXXXX", 160 },
453 { "VSBPD1H U3SCSI", "XXXXXXX*XXXXXXXX", 160 }
457 * Function Prototypes
459 static int ipr_reset_alert(struct ipr_cmnd *);
460 static void ipr_process_ccn(struct ipr_cmnd *);
461 static void ipr_process_error(struct ipr_cmnd *);
462 static void ipr_reset_ioa_job(struct ipr_cmnd *);
463 static void ipr_initiate_ioa_reset(struct ipr_ioa_cfg *,
464 enum ipr_shutdown_type);
466 #ifdef CONFIG_SCSI_IPR_TRACE
468 * ipr_trc_hook - Add a trace entry to the driver trace
469 * @ipr_cmd: ipr command struct
471 * @add_data: additional data
476 static void ipr_trc_hook(struct ipr_cmnd *ipr_cmd,
477 u8 type, u32 add_data)
479 struct ipr_trace_entry *trace_entry;
480 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
482 trace_entry = &ioa_cfg->trace[ioa_cfg->trace_index++];
483 trace_entry->time = jiffies;
484 trace_entry->op_code = ipr_cmd->ioarcb.cmd_pkt.cdb[0];
485 trace_entry->type = type;
486 if (ipr_cmd->ioa_cfg->sis64)
487 trace_entry->ata_op_code = ipr_cmd->i.ata_ioadl.regs.command;
489 trace_entry->ata_op_code = ipr_cmd->ioarcb.u.add_data.u.regs.command;
490 trace_entry->cmd_index = ipr_cmd->cmd_index & 0xff;
491 trace_entry->res_handle = ipr_cmd->ioarcb.res_handle;
492 trace_entry->u.add_data = add_data;
495 #define ipr_trc_hook(ipr_cmd, type, add_data) do { } while(0)
499 * ipr_reinit_ipr_cmnd - Re-initialize an IPR Cmnd block for reuse
500 * @ipr_cmd: ipr command struct
505 static void ipr_reinit_ipr_cmnd(struct ipr_cmnd *ipr_cmd)
507 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
508 struct ipr_ioasa *ioasa = &ipr_cmd->ioasa;
509 dma_addr_t dma_addr = ipr_cmd->dma_addr;
511 memset(&ioarcb->cmd_pkt, 0, sizeof(struct ipr_cmd_pkt));
512 ioarcb->data_transfer_length = 0;
513 ioarcb->read_data_transfer_length = 0;
514 ioarcb->ioadl_len = 0;
515 ioarcb->read_ioadl_len = 0;
517 if (ipr_cmd->ioa_cfg->sis64)
518 ioarcb->u.sis64_addr_data.data_ioadl_addr =
519 cpu_to_be64(dma_addr + offsetof(struct ipr_cmnd, i.ioadl64));
521 ioarcb->write_ioadl_addr =
522 cpu_to_be32(dma_addr + offsetof(struct ipr_cmnd, i.ioadl));
523 ioarcb->read_ioadl_addr = ioarcb->write_ioadl_addr;
527 ioasa->residual_data_len = 0;
528 ioasa->u.gata.status = 0;
530 ipr_cmd->scsi_cmd = NULL;
532 ipr_cmd->sense_buffer[0] = 0;
533 ipr_cmd->dma_use_sg = 0;
537 * ipr_init_ipr_cmnd - Initialize an IPR Cmnd block
538 * @ipr_cmd: ipr command struct
543 static void ipr_init_ipr_cmnd(struct ipr_cmnd *ipr_cmd)
545 ipr_reinit_ipr_cmnd(ipr_cmd);
546 ipr_cmd->u.scratch = 0;
547 ipr_cmd->sibling = NULL;
548 init_timer(&ipr_cmd->timer);
552 * ipr_get_free_ipr_cmnd - Get a free IPR Cmnd block
553 * @ioa_cfg: ioa config struct
556 * pointer to ipr command struct
559 struct ipr_cmnd *ipr_get_free_ipr_cmnd(struct ipr_ioa_cfg *ioa_cfg)
561 struct ipr_cmnd *ipr_cmd;
563 ipr_cmd = list_entry(ioa_cfg->free_q.next, struct ipr_cmnd, queue);
564 list_del(&ipr_cmd->queue);
565 ipr_init_ipr_cmnd(ipr_cmd);
571 * ipr_mask_and_clear_interrupts - Mask all and clear specified interrupts
572 * @ioa_cfg: ioa config struct
573 * @clr_ints: interrupts to clear
575 * This function masks all interrupts on the adapter, then clears the
576 * interrupts specified in the mask
581 static void ipr_mask_and_clear_interrupts(struct ipr_ioa_cfg *ioa_cfg,
584 volatile u32 int_reg;
586 /* Stop new interrupts */
587 ioa_cfg->allow_interrupts = 0;
589 /* Set interrupt mask to stop all new interrupts */
590 writel(~0, ioa_cfg->regs.set_interrupt_mask_reg);
592 /* Clear any pending interrupts */
593 writel(clr_ints, ioa_cfg->regs.clr_interrupt_reg);
594 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg);
598 * ipr_save_pcix_cmd_reg - Save PCI-X command register
599 * @ioa_cfg: ioa config struct
602 * 0 on success / -EIO on failure
604 static int ipr_save_pcix_cmd_reg(struct ipr_ioa_cfg *ioa_cfg)
606 int pcix_cmd_reg = pci_find_capability(ioa_cfg->pdev, PCI_CAP_ID_PCIX);
608 if (pcix_cmd_reg == 0)
611 if (pci_read_config_word(ioa_cfg->pdev, pcix_cmd_reg + PCI_X_CMD,
612 &ioa_cfg->saved_pcix_cmd_reg) != PCIBIOS_SUCCESSFUL) {
613 dev_err(&ioa_cfg->pdev->dev, "Failed to save PCI-X command register\n");
617 ioa_cfg->saved_pcix_cmd_reg |= PCI_X_CMD_DPERR_E | PCI_X_CMD_ERO;
622 * ipr_set_pcix_cmd_reg - Setup PCI-X command register
623 * @ioa_cfg: ioa config struct
626 * 0 on success / -EIO on failure
628 static int ipr_set_pcix_cmd_reg(struct ipr_ioa_cfg *ioa_cfg)
630 int pcix_cmd_reg = pci_find_capability(ioa_cfg->pdev, PCI_CAP_ID_PCIX);
633 if (pci_write_config_word(ioa_cfg->pdev, pcix_cmd_reg + PCI_X_CMD,
634 ioa_cfg->saved_pcix_cmd_reg) != PCIBIOS_SUCCESSFUL) {
635 dev_err(&ioa_cfg->pdev->dev, "Failed to setup PCI-X command register\n");
644 * ipr_sata_eh_done - done function for aborted SATA commands
645 * @ipr_cmd: ipr command struct
647 * This function is invoked for ops generated to SATA
648 * devices which are being aborted.
653 static void ipr_sata_eh_done(struct ipr_cmnd *ipr_cmd)
655 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
656 struct ata_queued_cmd *qc = ipr_cmd->qc;
657 struct ipr_sata_port *sata_port = qc->ap->private_data;
659 qc->err_mask |= AC_ERR_OTHER;
660 sata_port->ioasa.status |= ATA_BUSY;
661 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
666 * ipr_scsi_eh_done - mid-layer done function for aborted ops
667 * @ipr_cmd: ipr command struct
669 * This function is invoked by the interrupt handler for
670 * ops generated by the SCSI mid-layer which are being aborted.
675 static void ipr_scsi_eh_done(struct ipr_cmnd *ipr_cmd)
677 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
678 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd;
680 scsi_cmd->result |= (DID_ERROR << 16);
682 scsi_dma_unmap(ipr_cmd->scsi_cmd);
683 scsi_cmd->scsi_done(scsi_cmd);
684 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
688 * ipr_fail_all_ops - Fails all outstanding ops.
689 * @ioa_cfg: ioa config struct
691 * This function fails all outstanding ops.
696 static void ipr_fail_all_ops(struct ipr_ioa_cfg *ioa_cfg)
698 struct ipr_cmnd *ipr_cmd, *temp;
701 list_for_each_entry_safe(ipr_cmd, temp, &ioa_cfg->pending_q, queue) {
702 list_del(&ipr_cmd->queue);
704 ipr_cmd->ioasa.ioasc = cpu_to_be32(IPR_IOASC_IOA_WAS_RESET);
705 ipr_cmd->ioasa.ilid = cpu_to_be32(IPR_DRIVER_ILID);
707 if (ipr_cmd->scsi_cmd)
708 ipr_cmd->done = ipr_scsi_eh_done;
709 else if (ipr_cmd->qc)
710 ipr_cmd->done = ipr_sata_eh_done;
712 ipr_trc_hook(ipr_cmd, IPR_TRACE_FINISH, IPR_IOASC_IOA_WAS_RESET);
713 del_timer(&ipr_cmd->timer);
714 ipr_cmd->done(ipr_cmd);
721 * ipr_send_command - Send driver initiated requests.
722 * @ipr_cmd: ipr command struct
724 * This function sends a command to the adapter using the correct write call.
725 * In the case of sis64, calculate the ioarcb size required. Then or in the
731 static void ipr_send_command(struct ipr_cmnd *ipr_cmd)
733 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
734 dma_addr_t send_dma_addr = ipr_cmd->dma_addr;
736 if (ioa_cfg->sis64) {
737 /* The default size is 256 bytes */
738 send_dma_addr |= 0x1;
740 /* If the number of ioadls * size of ioadl > 128 bytes,
741 then use a 512 byte ioarcb */
742 if (ipr_cmd->dma_use_sg * sizeof(struct ipr_ioadl64_desc) > 128 )
743 send_dma_addr |= 0x4;
744 writeq(send_dma_addr, ioa_cfg->regs.ioarrin_reg);
746 writel(send_dma_addr, ioa_cfg->regs.ioarrin_reg);
750 * ipr_do_req - Send driver initiated requests.
751 * @ipr_cmd: ipr command struct
752 * @done: done function
753 * @timeout_func: timeout function
754 * @timeout: timeout value
756 * This function sends the specified command to the adapter with the
757 * timeout given. The done function is invoked on command completion.
762 static void ipr_do_req(struct ipr_cmnd *ipr_cmd,
763 void (*done) (struct ipr_cmnd *),
764 void (*timeout_func) (struct ipr_cmnd *), u32 timeout)
766 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
768 list_add_tail(&ipr_cmd->queue, &ioa_cfg->pending_q);
770 ipr_cmd->done = done;
772 ipr_cmd->timer.data = (unsigned long) ipr_cmd;
773 ipr_cmd->timer.expires = jiffies + timeout;
774 ipr_cmd->timer.function = (void (*)(unsigned long))timeout_func;
776 add_timer(&ipr_cmd->timer);
778 ipr_trc_hook(ipr_cmd, IPR_TRACE_START, 0);
782 ipr_send_command(ipr_cmd);
786 * ipr_internal_cmd_done - Op done function for an internally generated op.
787 * @ipr_cmd: ipr command struct
789 * This function is the op done function for an internally generated,
790 * blocking op. It simply wakes the sleeping thread.
795 static void ipr_internal_cmd_done(struct ipr_cmnd *ipr_cmd)
797 if (ipr_cmd->sibling)
798 ipr_cmd->sibling = NULL;
800 complete(&ipr_cmd->completion);
804 * ipr_init_ioadl - initialize the ioadl for the correct SIS type
805 * @ipr_cmd: ipr command struct
806 * @dma_addr: dma address
807 * @len: transfer length
808 * @flags: ioadl flag value
810 * This function initializes an ioadl in the case where there is only a single
816 static void ipr_init_ioadl(struct ipr_cmnd *ipr_cmd, dma_addr_t dma_addr,
819 struct ipr_ioadl_desc *ioadl = ipr_cmd->i.ioadl;
820 struct ipr_ioadl64_desc *ioadl64 = ipr_cmd->i.ioadl64;
822 ipr_cmd->dma_use_sg = 1;
824 if (ipr_cmd->ioa_cfg->sis64) {
825 ioadl64->flags = cpu_to_be32(flags);
826 ioadl64->data_len = cpu_to_be32(len);
827 ioadl64->address = cpu_to_be64(dma_addr);
829 ipr_cmd->ioarcb.ioadl_len =
830 cpu_to_be32(sizeof(struct ipr_ioadl64_desc));
831 ipr_cmd->ioarcb.data_transfer_length = cpu_to_be32(len);
833 ioadl->flags_and_data_len = cpu_to_be32(flags | len);
834 ioadl->address = cpu_to_be32(dma_addr);
836 if (flags == IPR_IOADL_FLAGS_READ_LAST) {
837 ipr_cmd->ioarcb.read_ioadl_len =
838 cpu_to_be32(sizeof(struct ipr_ioadl_desc));
839 ipr_cmd->ioarcb.read_data_transfer_length = cpu_to_be32(len);
841 ipr_cmd->ioarcb.ioadl_len =
842 cpu_to_be32(sizeof(struct ipr_ioadl_desc));
843 ipr_cmd->ioarcb.data_transfer_length = cpu_to_be32(len);
849 * ipr_send_blocking_cmd - Send command and sleep on its completion.
850 * @ipr_cmd: ipr command struct
851 * @timeout_func: function to invoke if command times out
857 static void ipr_send_blocking_cmd(struct ipr_cmnd *ipr_cmd,
858 void (*timeout_func) (struct ipr_cmnd *ipr_cmd),
861 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
863 init_completion(&ipr_cmd->completion);
864 ipr_do_req(ipr_cmd, ipr_internal_cmd_done, timeout_func, timeout);
866 spin_unlock_irq(ioa_cfg->host->host_lock);
867 wait_for_completion(&ipr_cmd->completion);
868 spin_lock_irq(ioa_cfg->host->host_lock);
872 * ipr_send_hcam - Send an HCAM to the adapter.
873 * @ioa_cfg: ioa config struct
875 * @hostrcb: hostrcb struct
877 * This function will send a Host Controlled Async command to the adapter.
878 * If HCAMs are currently not allowed to be issued to the adapter, it will
879 * place the hostrcb on the free queue.
884 static void ipr_send_hcam(struct ipr_ioa_cfg *ioa_cfg, u8 type,
885 struct ipr_hostrcb *hostrcb)
887 struct ipr_cmnd *ipr_cmd;
888 struct ipr_ioarcb *ioarcb;
890 if (ioa_cfg->allow_cmds) {
891 ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg);
892 list_add_tail(&ipr_cmd->queue, &ioa_cfg->pending_q);
893 list_add_tail(&hostrcb->queue, &ioa_cfg->hostrcb_pending_q);
895 ipr_cmd->u.hostrcb = hostrcb;
896 ioarcb = &ipr_cmd->ioarcb;
898 ioarcb->res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE);
899 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_HCAM;
900 ioarcb->cmd_pkt.cdb[0] = IPR_HOST_CONTROLLED_ASYNC;
901 ioarcb->cmd_pkt.cdb[1] = type;
902 ioarcb->cmd_pkt.cdb[7] = (sizeof(hostrcb->hcam) >> 8) & 0xff;
903 ioarcb->cmd_pkt.cdb[8] = sizeof(hostrcb->hcam) & 0xff;
905 ipr_init_ioadl(ipr_cmd, hostrcb->hostrcb_dma,
906 sizeof(hostrcb->hcam), IPR_IOADL_FLAGS_READ_LAST);
908 if (type == IPR_HCAM_CDB_OP_CODE_CONFIG_CHANGE)
909 ipr_cmd->done = ipr_process_ccn;
911 ipr_cmd->done = ipr_process_error;
913 ipr_trc_hook(ipr_cmd, IPR_TRACE_START, IPR_IOA_RES_ADDR);
917 ipr_send_command(ipr_cmd);
919 list_add_tail(&hostrcb->queue, &ioa_cfg->hostrcb_free_q);
924 * ipr_init_res_entry - Initialize a resource entry struct.
925 * @res: resource entry struct
930 static void ipr_init_res_entry(struct ipr_resource_entry *res)
932 res->needs_sync_complete = 0;
935 res->del_from_ml = 0;
936 res->resetting_device = 0;
938 res->sata_port = NULL;
942 * ipr_handle_config_change - Handle a config change from the adapter
943 * @ioa_cfg: ioa config struct
949 static void ipr_handle_config_change(struct ipr_ioa_cfg *ioa_cfg,
950 struct ipr_hostrcb *hostrcb)
952 struct ipr_resource_entry *res = NULL;
953 struct ipr_config_table_entry *cfgte;
956 cfgte = &hostrcb->hcam.u.ccn.cfgte;
958 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) {
959 if (!memcmp(&res->cfgte.res_addr, &cfgte->res_addr,
960 sizeof(cfgte->res_addr))) {
967 if (list_empty(&ioa_cfg->free_res_q)) {
968 ipr_send_hcam(ioa_cfg,
969 IPR_HCAM_CDB_OP_CODE_CONFIG_CHANGE,
974 res = list_entry(ioa_cfg->free_res_q.next,
975 struct ipr_resource_entry, queue);
977 list_del(&res->queue);
978 ipr_init_res_entry(res);
979 list_add_tail(&res->queue, &ioa_cfg->used_res_q);
982 memcpy(&res->cfgte, cfgte, sizeof(struct ipr_config_table_entry));
984 if (hostrcb->hcam.notify_type == IPR_HOST_RCB_NOTIF_TYPE_REM_ENTRY) {
986 res->del_from_ml = 1;
987 res->cfgte.res_handle = IPR_INVALID_RES_HANDLE;
988 if (ioa_cfg->allow_ml_add_del)
989 schedule_work(&ioa_cfg->work_q);
991 list_move_tail(&res->queue, &ioa_cfg->free_res_q);
992 } else if (!res->sdev) {
994 if (ioa_cfg->allow_ml_add_del)
995 schedule_work(&ioa_cfg->work_q);
998 ipr_send_hcam(ioa_cfg, IPR_HCAM_CDB_OP_CODE_CONFIG_CHANGE, hostrcb);
1002 * ipr_process_ccn - Op done function for a CCN.
1003 * @ipr_cmd: ipr command struct
1005 * This function is the op done function for a configuration
1006 * change notification host controlled async from the adapter.
1011 static void ipr_process_ccn(struct ipr_cmnd *ipr_cmd)
1013 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
1014 struct ipr_hostrcb *hostrcb = ipr_cmd->u.hostrcb;
1015 u32 ioasc = be32_to_cpu(ipr_cmd->ioasa.ioasc);
1017 list_del(&hostrcb->queue);
1018 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
1021 if (ioasc != IPR_IOASC_IOA_WAS_RESET)
1022 dev_err(&ioa_cfg->pdev->dev,
1023 "Host RCB failed with IOASC: 0x%08X\n", ioasc);
1025 ipr_send_hcam(ioa_cfg, IPR_HCAM_CDB_OP_CODE_CONFIG_CHANGE, hostrcb);
1027 ipr_handle_config_change(ioa_cfg, hostrcb);
1032 * strip_and_pad_whitespace - Strip and pad trailing whitespace.
1033 * @i: index into buffer
1034 * @buf: string to modify
1036 * This function will strip all trailing whitespace, pad the end
1037 * of the string with a single space, and NULL terminate the string.
1040 * new length of string
1042 static int strip_and_pad_whitespace(int i, char *buf)
1044 while (i && buf[i] == ' ')
1052 * ipr_log_vpd_compact - Log the passed extended VPD compactly.
1053 * @prefix: string to print at start of printk
1054 * @hostrcb: hostrcb pointer
1055 * @vpd: vendor/product id/sn struct
1060 static void ipr_log_vpd_compact(char *prefix, struct ipr_hostrcb *hostrcb,
1061 struct ipr_vpd *vpd)
1063 char buffer[IPR_VENDOR_ID_LEN + IPR_PROD_ID_LEN + IPR_SERIAL_NUM_LEN + 3];
1066 memcpy(buffer, vpd->vpids.vendor_id, IPR_VENDOR_ID_LEN);
1067 i = strip_and_pad_whitespace(IPR_VENDOR_ID_LEN - 1, buffer);
1069 memcpy(&buffer[i], vpd->vpids.product_id, IPR_PROD_ID_LEN);
1070 i = strip_and_pad_whitespace(i + IPR_PROD_ID_LEN - 1, buffer);
1072 memcpy(&buffer[i], vpd->sn, IPR_SERIAL_NUM_LEN);
1073 buffer[IPR_SERIAL_NUM_LEN + i] = '\0';
1075 ipr_hcam_err(hostrcb, "%s VPID/SN: %s\n", prefix, buffer);
1079 * ipr_log_vpd - Log the passed VPD to the error log.
1080 * @vpd: vendor/product id/sn struct
1085 static void ipr_log_vpd(struct ipr_vpd *vpd)
1087 char buffer[IPR_VENDOR_ID_LEN + IPR_PROD_ID_LEN
1088 + IPR_SERIAL_NUM_LEN];
1090 memcpy(buffer, vpd->vpids.vendor_id, IPR_VENDOR_ID_LEN);
1091 memcpy(buffer + IPR_VENDOR_ID_LEN, vpd->vpids.product_id,
1093 buffer[IPR_VENDOR_ID_LEN + IPR_PROD_ID_LEN] = '\0';
1094 ipr_err("Vendor/Product ID: %s\n", buffer);
1096 memcpy(buffer, vpd->sn, IPR_SERIAL_NUM_LEN);
1097 buffer[IPR_SERIAL_NUM_LEN] = '\0';
1098 ipr_err(" Serial Number: %s\n", buffer);
1102 * ipr_log_ext_vpd_compact - Log the passed extended VPD compactly.
1103 * @prefix: string to print at start of printk
1104 * @hostrcb: hostrcb pointer
1105 * @vpd: vendor/product id/sn/wwn struct
1110 static void ipr_log_ext_vpd_compact(char *prefix, struct ipr_hostrcb *hostrcb,
1111 struct ipr_ext_vpd *vpd)
1113 ipr_log_vpd_compact(prefix, hostrcb, &vpd->vpd);
1114 ipr_hcam_err(hostrcb, "%s WWN: %08X%08X\n", prefix,
1115 be32_to_cpu(vpd->wwid[0]), be32_to_cpu(vpd->wwid[1]));
1119 * ipr_log_ext_vpd - Log the passed extended VPD to the error log.
1120 * @vpd: vendor/product id/sn/wwn struct
1125 static void ipr_log_ext_vpd(struct ipr_ext_vpd *vpd)
1127 ipr_log_vpd(&vpd->vpd);
1128 ipr_err(" WWN: %08X%08X\n", be32_to_cpu(vpd->wwid[0]),
1129 be32_to_cpu(vpd->wwid[1]));
1133 * ipr_log_enhanced_cache_error - Log a cache error.
1134 * @ioa_cfg: ioa config struct
1135 * @hostrcb: hostrcb struct
1140 static void ipr_log_enhanced_cache_error(struct ipr_ioa_cfg *ioa_cfg,
1141 struct ipr_hostrcb *hostrcb)
1143 struct ipr_hostrcb_type_12_error *error =
1144 &hostrcb->hcam.u.error.u.type_12_error;
1146 ipr_err("-----Current Configuration-----\n");
1147 ipr_err("Cache Directory Card Information:\n");
1148 ipr_log_ext_vpd(&error->ioa_vpd);
1149 ipr_err("Adapter Card Information:\n");
1150 ipr_log_ext_vpd(&error->cfc_vpd);
1152 ipr_err("-----Expected Configuration-----\n");
1153 ipr_err("Cache Directory Card Information:\n");
1154 ipr_log_ext_vpd(&error->ioa_last_attached_to_cfc_vpd);
1155 ipr_err("Adapter Card Information:\n");
1156 ipr_log_ext_vpd(&error->cfc_last_attached_to_ioa_vpd);
1158 ipr_err("Additional IOA Data: %08X %08X %08X\n",
1159 be32_to_cpu(error->ioa_data[0]),
1160 be32_to_cpu(error->ioa_data[1]),
1161 be32_to_cpu(error->ioa_data[2]));
1165 * ipr_log_cache_error - Log a cache error.
1166 * @ioa_cfg: ioa config struct
1167 * @hostrcb: hostrcb struct
1172 static void ipr_log_cache_error(struct ipr_ioa_cfg *ioa_cfg,
1173 struct ipr_hostrcb *hostrcb)
1175 struct ipr_hostrcb_type_02_error *error =
1176 &hostrcb->hcam.u.error.u.type_02_error;
1178 ipr_err("-----Current Configuration-----\n");
1179 ipr_err("Cache Directory Card Information:\n");
1180 ipr_log_vpd(&error->ioa_vpd);
1181 ipr_err("Adapter Card Information:\n");
1182 ipr_log_vpd(&error->cfc_vpd);
1184 ipr_err("-----Expected Configuration-----\n");
1185 ipr_err("Cache Directory Card Information:\n");
1186 ipr_log_vpd(&error->ioa_last_attached_to_cfc_vpd);
1187 ipr_err("Adapter Card Information:\n");
1188 ipr_log_vpd(&error->cfc_last_attached_to_ioa_vpd);
1190 ipr_err("Additional IOA Data: %08X %08X %08X\n",
1191 be32_to_cpu(error->ioa_data[0]),
1192 be32_to_cpu(error->ioa_data[1]),
1193 be32_to_cpu(error->ioa_data[2]));
1197 * ipr_log_enhanced_config_error - Log a configuration error.
1198 * @ioa_cfg: ioa config struct
1199 * @hostrcb: hostrcb struct
1204 static void ipr_log_enhanced_config_error(struct ipr_ioa_cfg *ioa_cfg,
1205 struct ipr_hostrcb *hostrcb)
1207 int errors_logged, i;
1208 struct ipr_hostrcb_device_data_entry_enhanced *dev_entry;
1209 struct ipr_hostrcb_type_13_error *error;
1211 error = &hostrcb->hcam.u.error.u.type_13_error;
1212 errors_logged = be32_to_cpu(error->errors_logged);
1214 ipr_err("Device Errors Detected/Logged: %d/%d\n",
1215 be32_to_cpu(error->errors_detected), errors_logged);
1217 dev_entry = error->dev;
1219 for (i = 0; i < errors_logged; i++, dev_entry++) {
1222 ipr_phys_res_err(ioa_cfg, dev_entry->dev_res_addr, "Device %d", i + 1);
1223 ipr_log_ext_vpd(&dev_entry->vpd);
1225 ipr_err("-----New Device Information-----\n");
1226 ipr_log_ext_vpd(&dev_entry->new_vpd);
1228 ipr_err("Cache Directory Card Information:\n");
1229 ipr_log_ext_vpd(&dev_entry->ioa_last_with_dev_vpd);
1231 ipr_err("Adapter Card Information:\n");
1232 ipr_log_ext_vpd(&dev_entry->cfc_last_with_dev_vpd);
1237 * ipr_log_config_error - Log a configuration error.
1238 * @ioa_cfg: ioa config struct
1239 * @hostrcb: hostrcb struct
1244 static void ipr_log_config_error(struct ipr_ioa_cfg *ioa_cfg,
1245 struct ipr_hostrcb *hostrcb)
1247 int errors_logged, i;
1248 struct ipr_hostrcb_device_data_entry *dev_entry;
1249 struct ipr_hostrcb_type_03_error *error;
1251 error = &hostrcb->hcam.u.error.u.type_03_error;
1252 errors_logged = be32_to_cpu(error->errors_logged);
1254 ipr_err("Device Errors Detected/Logged: %d/%d\n",
1255 be32_to_cpu(error->errors_detected), errors_logged);
1257 dev_entry = error->dev;
1259 for (i = 0; i < errors_logged; i++, dev_entry++) {
1262 ipr_phys_res_err(ioa_cfg, dev_entry->dev_res_addr, "Device %d", i + 1);
1263 ipr_log_vpd(&dev_entry->vpd);
1265 ipr_err("-----New Device Information-----\n");
1266 ipr_log_vpd(&dev_entry->new_vpd);
1268 ipr_err("Cache Directory Card Information:\n");
1269 ipr_log_vpd(&dev_entry->ioa_last_with_dev_vpd);
1271 ipr_err("Adapter Card Information:\n");
1272 ipr_log_vpd(&dev_entry->cfc_last_with_dev_vpd);
1274 ipr_err("Additional IOA Data: %08X %08X %08X %08X %08X\n",
1275 be32_to_cpu(dev_entry->ioa_data[0]),
1276 be32_to_cpu(dev_entry->ioa_data[1]),
1277 be32_to_cpu(dev_entry->ioa_data[2]),
1278 be32_to_cpu(dev_entry->ioa_data[3]),
1279 be32_to_cpu(dev_entry->ioa_data[4]));
1284 * ipr_log_enhanced_array_error - Log an array configuration error.
1285 * @ioa_cfg: ioa config struct
1286 * @hostrcb: hostrcb struct
1291 static void ipr_log_enhanced_array_error(struct ipr_ioa_cfg *ioa_cfg,
1292 struct ipr_hostrcb *hostrcb)
1295 struct ipr_hostrcb_type_14_error *error;
1296 struct ipr_hostrcb_array_data_entry_enhanced *array_entry;
1297 const u8 zero_sn[IPR_SERIAL_NUM_LEN] = { [0 ... IPR_SERIAL_NUM_LEN-1] = '0' };
1299 error = &hostrcb->hcam.u.error.u.type_14_error;
1303 ipr_err("RAID %s Array Configuration: %d:%d:%d:%d\n",
1304 error->protection_level,
1305 ioa_cfg->host->host_no,
1306 error->last_func_vset_res_addr.bus,
1307 error->last_func_vset_res_addr.target,
1308 error->last_func_vset_res_addr.lun);
1312 array_entry = error->array_member;
1313 num_entries = min_t(u32, be32_to_cpu(error->num_entries),
1314 sizeof(error->array_member));
1316 for (i = 0; i < num_entries; i++, array_entry++) {
1317 if (!memcmp(array_entry->vpd.vpd.sn, zero_sn, IPR_SERIAL_NUM_LEN))
1320 if (be32_to_cpu(error->exposed_mode_adn) == i)
1321 ipr_err("Exposed Array Member %d:\n", i);
1323 ipr_err("Array Member %d:\n", i);
1325 ipr_log_ext_vpd(&array_entry->vpd);
1326 ipr_phys_res_err(ioa_cfg, array_entry->dev_res_addr, "Current Location");
1327 ipr_phys_res_err(ioa_cfg, array_entry->expected_dev_res_addr,
1328 "Expected Location");
1335 * ipr_log_array_error - Log an array configuration error.
1336 * @ioa_cfg: ioa config struct
1337 * @hostrcb: hostrcb struct
1342 static void ipr_log_array_error(struct ipr_ioa_cfg *ioa_cfg,
1343 struct ipr_hostrcb *hostrcb)
1346 struct ipr_hostrcb_type_04_error *error;
1347 struct ipr_hostrcb_array_data_entry *array_entry;
1348 const u8 zero_sn[IPR_SERIAL_NUM_LEN] = { [0 ... IPR_SERIAL_NUM_LEN-1] = '0' };
1350 error = &hostrcb->hcam.u.error.u.type_04_error;
1354 ipr_err("RAID %s Array Configuration: %d:%d:%d:%d\n",
1355 error->protection_level,
1356 ioa_cfg->host->host_no,
1357 error->last_func_vset_res_addr.bus,
1358 error->last_func_vset_res_addr.target,
1359 error->last_func_vset_res_addr.lun);
1363 array_entry = error->array_member;
1365 for (i = 0; i < 18; i++) {
1366 if (!memcmp(array_entry->vpd.sn, zero_sn, IPR_SERIAL_NUM_LEN))
1369 if (be32_to_cpu(error->exposed_mode_adn) == i)
1370 ipr_err("Exposed Array Member %d:\n", i);
1372 ipr_err("Array Member %d:\n", i);
1374 ipr_log_vpd(&array_entry->vpd);
1376 ipr_phys_res_err(ioa_cfg, array_entry->dev_res_addr, "Current Location");
1377 ipr_phys_res_err(ioa_cfg, array_entry->expected_dev_res_addr,
1378 "Expected Location");
1383 array_entry = error->array_member2;
1390 * ipr_log_hex_data - Log additional hex IOA error data.
1391 * @ioa_cfg: ioa config struct
1392 * @data: IOA error data
1398 static void ipr_log_hex_data(struct ipr_ioa_cfg *ioa_cfg, u32 *data, int len)
1405 if (ioa_cfg->log_level <= IPR_DEFAULT_LOG_LEVEL)
1406 len = min_t(int, len, IPR_DEFAULT_MAX_ERROR_DUMP);
1408 for (i = 0; i < len / 4; i += 4) {
1409 ipr_err("%08X: %08X %08X %08X %08X\n", i*4,
1410 be32_to_cpu(data[i]),
1411 be32_to_cpu(data[i+1]),
1412 be32_to_cpu(data[i+2]),
1413 be32_to_cpu(data[i+3]));
1418 * ipr_log_enhanced_dual_ioa_error - Log an enhanced dual adapter error.
1419 * @ioa_cfg: ioa config struct
1420 * @hostrcb: hostrcb struct
1425 static void ipr_log_enhanced_dual_ioa_error(struct ipr_ioa_cfg *ioa_cfg,
1426 struct ipr_hostrcb *hostrcb)
1428 struct ipr_hostrcb_type_17_error *error;
1430 error = &hostrcb->hcam.u.error.u.type_17_error;
1431 error->failure_reason[sizeof(error->failure_reason) - 1] = '\0';
1432 strim(error->failure_reason);
1434 ipr_hcam_err(hostrcb, "%s [PRC: %08X]\n", error->failure_reason,
1435 be32_to_cpu(hostrcb->hcam.u.error.prc));
1436 ipr_log_ext_vpd_compact("Remote IOA", hostrcb, &error->vpd);
1437 ipr_log_hex_data(ioa_cfg, error->data,
1438 be32_to_cpu(hostrcb->hcam.length) -
1439 (offsetof(struct ipr_hostrcb_error, u) +
1440 offsetof(struct ipr_hostrcb_type_17_error, data)));
1444 * ipr_log_dual_ioa_error - Log a dual adapter error.
1445 * @ioa_cfg: ioa config struct
1446 * @hostrcb: hostrcb struct
1451 static void ipr_log_dual_ioa_error(struct ipr_ioa_cfg *ioa_cfg,
1452 struct ipr_hostrcb *hostrcb)
1454 struct ipr_hostrcb_type_07_error *error;
1456 error = &hostrcb->hcam.u.error.u.type_07_error;
1457 error->failure_reason[sizeof(error->failure_reason) - 1] = '\0';
1458 strim(error->failure_reason);
1460 ipr_hcam_err(hostrcb, "%s [PRC: %08X]\n", error->failure_reason,
1461 be32_to_cpu(hostrcb->hcam.u.error.prc));
1462 ipr_log_vpd_compact("Remote IOA", hostrcb, &error->vpd);
1463 ipr_log_hex_data(ioa_cfg, error->data,
1464 be32_to_cpu(hostrcb->hcam.length) -
1465 (offsetof(struct ipr_hostrcb_error, u) +
1466 offsetof(struct ipr_hostrcb_type_07_error, data)));
1469 static const struct {
1472 } path_active_desc[] = {
1473 { IPR_PATH_NO_INFO, "Path" },
1474 { IPR_PATH_ACTIVE, "Active path" },
1475 { IPR_PATH_NOT_ACTIVE, "Inactive path" }
1478 static const struct {
1481 } path_state_desc[] = {
1482 { IPR_PATH_STATE_NO_INFO, "has no path state information available" },
1483 { IPR_PATH_HEALTHY, "is healthy" },
1484 { IPR_PATH_DEGRADED, "is degraded" },
1485 { IPR_PATH_FAILED, "is failed" }
1489 * ipr_log_fabric_path - Log a fabric path error
1490 * @hostrcb: hostrcb struct
1491 * @fabric: fabric descriptor
1496 static void ipr_log_fabric_path(struct ipr_hostrcb *hostrcb,
1497 struct ipr_hostrcb_fabric_desc *fabric)
1500 u8 path_state = fabric->path_state;
1501 u8 active = path_state & IPR_PATH_ACTIVE_MASK;
1502 u8 state = path_state & IPR_PATH_STATE_MASK;
1504 for (i = 0; i < ARRAY_SIZE(path_active_desc); i++) {
1505 if (path_active_desc[i].active != active)
1508 for (j = 0; j < ARRAY_SIZE(path_state_desc); j++) {
1509 if (path_state_desc[j].state != state)
1512 if (fabric->cascaded_expander == 0xff && fabric->phy == 0xff) {
1513 ipr_hcam_err(hostrcb, "%s %s: IOA Port=%d\n",
1514 path_active_desc[i].desc, path_state_desc[j].desc,
1516 } else if (fabric->cascaded_expander == 0xff) {
1517 ipr_hcam_err(hostrcb, "%s %s: IOA Port=%d, Phy=%d\n",
1518 path_active_desc[i].desc, path_state_desc[j].desc,
1519 fabric->ioa_port, fabric->phy);
1520 } else if (fabric->phy == 0xff) {
1521 ipr_hcam_err(hostrcb, "%s %s: IOA Port=%d, Cascade=%d\n",
1522 path_active_desc[i].desc, path_state_desc[j].desc,
1523 fabric->ioa_port, fabric->cascaded_expander);
1525 ipr_hcam_err(hostrcb, "%s %s: IOA Port=%d, Cascade=%d, Phy=%d\n",
1526 path_active_desc[i].desc, path_state_desc[j].desc,
1527 fabric->ioa_port, fabric->cascaded_expander, fabric->phy);
1533 ipr_err("Path state=%02X IOA Port=%d Cascade=%d Phy=%d\n", path_state,
1534 fabric->ioa_port, fabric->cascaded_expander, fabric->phy);
1537 static const struct {
1540 } path_type_desc[] = {
1541 { IPR_PATH_CFG_IOA_PORT, "IOA port" },
1542 { IPR_PATH_CFG_EXP_PORT, "Expander port" },
1543 { IPR_PATH_CFG_DEVICE_PORT, "Device port" },
1544 { IPR_PATH_CFG_DEVICE_LUN, "Device LUN" }
1547 static const struct {
1550 } path_status_desc[] = {
1551 { IPR_PATH_CFG_NO_PROB, "Functional" },
1552 { IPR_PATH_CFG_DEGRADED, "Degraded" },
1553 { IPR_PATH_CFG_FAILED, "Failed" },
1554 { IPR_PATH_CFG_SUSPECT, "Suspect" },
1555 { IPR_PATH_NOT_DETECTED, "Missing" },
1556 { IPR_PATH_INCORRECT_CONN, "Incorrectly connected" }
1559 static const char *link_rate[] = {
1562 "phy reset problem",
1579 * ipr_log_path_elem - Log a fabric path element.
1580 * @hostrcb: hostrcb struct
1581 * @cfg: fabric path element struct
1586 static void ipr_log_path_elem(struct ipr_hostrcb *hostrcb,
1587 struct ipr_hostrcb_config_element *cfg)
1590 u8 type = cfg->type_status & IPR_PATH_CFG_TYPE_MASK;
1591 u8 status = cfg->type_status & IPR_PATH_CFG_STATUS_MASK;
1593 if (type == IPR_PATH_CFG_NOT_EXIST)
1596 for (i = 0; i < ARRAY_SIZE(path_type_desc); i++) {
1597 if (path_type_desc[i].type != type)
1600 for (j = 0; j < ARRAY_SIZE(path_status_desc); j++) {
1601 if (path_status_desc[j].status != status)
1604 if (type == IPR_PATH_CFG_IOA_PORT) {
1605 ipr_hcam_err(hostrcb, "%s %s: Phy=%d, Link rate=%s, WWN=%08X%08X\n",
1606 path_status_desc[j].desc, path_type_desc[i].desc,
1607 cfg->phy, link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK],
1608 be32_to_cpu(cfg->wwid[0]), be32_to_cpu(cfg->wwid[1]));
1610 if (cfg->cascaded_expander == 0xff && cfg->phy == 0xff) {
1611 ipr_hcam_err(hostrcb, "%s %s: Link rate=%s, WWN=%08X%08X\n",
1612 path_status_desc[j].desc, path_type_desc[i].desc,
1613 link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK],
1614 be32_to_cpu(cfg->wwid[0]), be32_to_cpu(cfg->wwid[1]));
1615 } else if (cfg->cascaded_expander == 0xff) {
1616 ipr_hcam_err(hostrcb, "%s %s: Phy=%d, Link rate=%s, "
1617 "WWN=%08X%08X\n", path_status_desc[j].desc,
1618 path_type_desc[i].desc, cfg->phy,
1619 link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK],
1620 be32_to_cpu(cfg->wwid[0]), be32_to_cpu(cfg->wwid[1]));
1621 } else if (cfg->phy == 0xff) {
1622 ipr_hcam_err(hostrcb, "%s %s: Cascade=%d, Link rate=%s, "
1623 "WWN=%08X%08X\n", path_status_desc[j].desc,
1624 path_type_desc[i].desc, cfg->cascaded_expander,
1625 link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK],
1626 be32_to_cpu(cfg->wwid[0]), be32_to_cpu(cfg->wwid[1]));
1628 ipr_hcam_err(hostrcb, "%s %s: Cascade=%d, Phy=%d, Link rate=%s "
1629 "WWN=%08X%08X\n", path_status_desc[j].desc,
1630 path_type_desc[i].desc, cfg->cascaded_expander, cfg->phy,
1631 link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK],
1632 be32_to_cpu(cfg->wwid[0]), be32_to_cpu(cfg->wwid[1]));
1639 ipr_hcam_err(hostrcb, "Path element=%02X: Cascade=%d Phy=%d Link rate=%s "
1640 "WWN=%08X%08X\n", cfg->type_status, cfg->cascaded_expander, cfg->phy,
1641 link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK],
1642 be32_to_cpu(cfg->wwid[0]), be32_to_cpu(cfg->wwid[1]));
1646 * ipr_log_fabric_error - Log a fabric error.
1647 * @ioa_cfg: ioa config struct
1648 * @hostrcb: hostrcb struct
1653 static void ipr_log_fabric_error(struct ipr_ioa_cfg *ioa_cfg,
1654 struct ipr_hostrcb *hostrcb)
1656 struct ipr_hostrcb_type_20_error *error;
1657 struct ipr_hostrcb_fabric_desc *fabric;
1658 struct ipr_hostrcb_config_element *cfg;
1661 error = &hostrcb->hcam.u.error.u.type_20_error;
1662 error->failure_reason[sizeof(error->failure_reason) - 1] = '\0';
1663 ipr_hcam_err(hostrcb, "%s\n", error->failure_reason);
1665 add_len = be32_to_cpu(hostrcb->hcam.length) -
1666 (offsetof(struct ipr_hostrcb_error, u) +
1667 offsetof(struct ipr_hostrcb_type_20_error, desc));
1669 for (i = 0, fabric = error->desc; i < error->num_entries; i++) {
1670 ipr_log_fabric_path(hostrcb, fabric);
1671 for_each_fabric_cfg(fabric, cfg)
1672 ipr_log_path_elem(hostrcb, cfg);
1674 add_len -= be16_to_cpu(fabric->length);
1675 fabric = (struct ipr_hostrcb_fabric_desc *)
1676 ((unsigned long)fabric + be16_to_cpu(fabric->length));
1679 ipr_log_hex_data(ioa_cfg, (u32 *)fabric, add_len);
1683 * ipr_log_generic_error - Log an adapter error.
1684 * @ioa_cfg: ioa config struct
1685 * @hostrcb: hostrcb struct
1690 static void ipr_log_generic_error(struct ipr_ioa_cfg *ioa_cfg,
1691 struct ipr_hostrcb *hostrcb)
1693 ipr_log_hex_data(ioa_cfg, hostrcb->hcam.u.raw.data,
1694 be32_to_cpu(hostrcb->hcam.length));
1698 * ipr_get_error - Find the specfied IOASC in the ipr_error_table.
1701 * This function will return the index of into the ipr_error_table
1702 * for the specified IOASC. If the IOASC is not in the table,
1703 * 0 will be returned, which points to the entry used for unknown errors.
1706 * index into the ipr_error_table
1708 static u32 ipr_get_error(u32 ioasc)
1712 for (i = 0; i < ARRAY_SIZE(ipr_error_table); i++)
1713 if (ipr_error_table[i].ioasc == (ioasc & IPR_IOASC_IOASC_MASK))
1720 * ipr_handle_log_data - Log an adapter error.
1721 * @ioa_cfg: ioa config struct
1722 * @hostrcb: hostrcb struct
1724 * This function logs an adapter error to the system.
1729 static void ipr_handle_log_data(struct ipr_ioa_cfg *ioa_cfg,
1730 struct ipr_hostrcb *hostrcb)
1735 if (hostrcb->hcam.notify_type != IPR_HOST_RCB_NOTIF_TYPE_ERROR_LOG_ENTRY)
1738 if (hostrcb->hcam.notifications_lost == IPR_HOST_RCB_NOTIFICATIONS_LOST)
1739 dev_err(&ioa_cfg->pdev->dev, "Error notifications lost\n");
1741 ioasc = be32_to_cpu(hostrcb->hcam.u.error.failing_dev_ioasc);
1743 if (ioasc == IPR_IOASC_BUS_WAS_RESET ||
1744 ioasc == IPR_IOASC_BUS_WAS_RESET_BY_OTHER) {
1745 /* Tell the midlayer we had a bus reset so it will handle the UA properly */
1746 scsi_report_bus_reset(ioa_cfg->host,
1747 hostrcb->hcam.u.error.failing_dev_res_addr.bus);
1750 error_index = ipr_get_error(ioasc);
1752 if (!ipr_error_table[error_index].log_hcam)
1755 ipr_hcam_err(hostrcb, "%s\n", ipr_error_table[error_index].error);
1757 /* Set indication we have logged an error */
1758 ioa_cfg->errors_logged++;
1760 if (ioa_cfg->log_level < ipr_error_table[error_index].log_hcam)
1762 if (be32_to_cpu(hostrcb->hcam.length) > sizeof(hostrcb->hcam.u.raw))
1763 hostrcb->hcam.length = cpu_to_be32(sizeof(hostrcb->hcam.u.raw));
1765 switch (hostrcb->hcam.overlay_id) {
1766 case IPR_HOST_RCB_OVERLAY_ID_2:
1767 ipr_log_cache_error(ioa_cfg, hostrcb);
1769 case IPR_HOST_RCB_OVERLAY_ID_3:
1770 ipr_log_config_error(ioa_cfg, hostrcb);
1772 case IPR_HOST_RCB_OVERLAY_ID_4:
1773 case IPR_HOST_RCB_OVERLAY_ID_6:
1774 ipr_log_array_error(ioa_cfg, hostrcb);
1776 case IPR_HOST_RCB_OVERLAY_ID_7:
1777 ipr_log_dual_ioa_error(ioa_cfg, hostrcb);
1779 case IPR_HOST_RCB_OVERLAY_ID_12:
1780 ipr_log_enhanced_cache_error(ioa_cfg, hostrcb);
1782 case IPR_HOST_RCB_OVERLAY_ID_13:
1783 ipr_log_enhanced_config_error(ioa_cfg, hostrcb);
1785 case IPR_HOST_RCB_OVERLAY_ID_14:
1786 case IPR_HOST_RCB_OVERLAY_ID_16:
1787 ipr_log_enhanced_array_error(ioa_cfg, hostrcb);
1789 case IPR_HOST_RCB_OVERLAY_ID_17:
1790 ipr_log_enhanced_dual_ioa_error(ioa_cfg, hostrcb);
1792 case IPR_HOST_RCB_OVERLAY_ID_20:
1793 ipr_log_fabric_error(ioa_cfg, hostrcb);
1795 case IPR_HOST_RCB_OVERLAY_ID_1:
1796 case IPR_HOST_RCB_OVERLAY_ID_DEFAULT:
1798 ipr_log_generic_error(ioa_cfg, hostrcb);
1804 * ipr_process_error - Op done function for an adapter error log.
1805 * @ipr_cmd: ipr command struct
1807 * This function is the op done function for an error log host
1808 * controlled async from the adapter. It will log the error and
1809 * send the HCAM back to the adapter.
1814 static void ipr_process_error(struct ipr_cmnd *ipr_cmd)
1816 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
1817 struct ipr_hostrcb *hostrcb = ipr_cmd->u.hostrcb;
1818 u32 ioasc = be32_to_cpu(ipr_cmd->ioasa.ioasc);
1819 u32 fd_ioasc = be32_to_cpu(hostrcb->hcam.u.error.failing_dev_ioasc);
1821 list_del(&hostrcb->queue);
1822 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
1825 ipr_handle_log_data(ioa_cfg, hostrcb);
1826 if (fd_ioasc == IPR_IOASC_NR_IOA_RESET_REQUIRED)
1827 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_ABBREV);
1828 } else if (ioasc != IPR_IOASC_IOA_WAS_RESET) {
1829 dev_err(&ioa_cfg->pdev->dev,
1830 "Host RCB failed with IOASC: 0x%08X\n", ioasc);
1833 ipr_send_hcam(ioa_cfg, IPR_HCAM_CDB_OP_CODE_LOG_DATA, hostrcb);
1837 * ipr_timeout - An internally generated op has timed out.
1838 * @ipr_cmd: ipr command struct
1840 * This function blocks host requests and initiates an
1846 static void ipr_timeout(struct ipr_cmnd *ipr_cmd)
1848 unsigned long lock_flags = 0;
1849 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
1852 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
1854 ioa_cfg->errors_logged++;
1855 dev_err(&ioa_cfg->pdev->dev,
1856 "Adapter being reset due to command timeout.\n");
1858 if (WAIT_FOR_DUMP == ioa_cfg->sdt_state)
1859 ioa_cfg->sdt_state = GET_DUMP;
1861 if (!ioa_cfg->in_reset_reload || ioa_cfg->reset_cmd == ipr_cmd)
1862 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
1864 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
1869 * ipr_oper_timeout - Adapter timed out transitioning to operational
1870 * @ipr_cmd: ipr command struct
1872 * This function blocks host requests and initiates an
1878 static void ipr_oper_timeout(struct ipr_cmnd *ipr_cmd)
1880 unsigned long lock_flags = 0;
1881 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
1884 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
1886 ioa_cfg->errors_logged++;
1887 dev_err(&ioa_cfg->pdev->dev,
1888 "Adapter timed out transitioning to operational.\n");
1890 if (WAIT_FOR_DUMP == ioa_cfg->sdt_state)
1891 ioa_cfg->sdt_state = GET_DUMP;
1893 if (!ioa_cfg->in_reset_reload || ioa_cfg->reset_cmd == ipr_cmd) {
1895 ioa_cfg->reset_retries += IPR_NUM_RESET_RELOAD_RETRIES;
1896 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
1899 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
1904 * ipr_reset_reload - Reset/Reload the IOA
1905 * @ioa_cfg: ioa config struct
1906 * @shutdown_type: shutdown type
1908 * This function resets the adapter and re-initializes it.
1909 * This function assumes that all new host commands have been stopped.
1913 static int ipr_reset_reload(struct ipr_ioa_cfg *ioa_cfg,
1914 enum ipr_shutdown_type shutdown_type)
1916 if (!ioa_cfg->in_reset_reload)
1917 ipr_initiate_ioa_reset(ioa_cfg, shutdown_type);
1919 spin_unlock_irq(ioa_cfg->host->host_lock);
1920 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
1921 spin_lock_irq(ioa_cfg->host->host_lock);
1923 /* If we got hit with a host reset while we were already resetting
1924 the adapter for some reason, and the reset failed. */
1925 if (ioa_cfg->ioa_is_dead) {
1934 * ipr_find_ses_entry - Find matching SES in SES table
1935 * @res: resource entry struct of SES
1938 * pointer to SES table entry / NULL on failure
1940 static const struct ipr_ses_table_entry *
1941 ipr_find_ses_entry(struct ipr_resource_entry *res)
1944 const struct ipr_ses_table_entry *ste = ipr_ses_table;
1946 for (i = 0; i < ARRAY_SIZE(ipr_ses_table); i++, ste++) {
1947 for (j = 0, matches = 0; j < IPR_PROD_ID_LEN; j++) {
1948 if (ste->compare_product_id_byte[j] == 'X') {
1949 if (res->cfgte.std_inq_data.vpids.product_id[j] == ste->product_id[j])
1957 if (matches == IPR_PROD_ID_LEN)
1965 * ipr_get_max_scsi_speed - Determine max SCSI speed for a given bus
1966 * @ioa_cfg: ioa config struct
1968 * @bus_width: bus width
1971 * SCSI bus speed in units of 100KHz, 1600 is 160 MHz
1972 * For a 2-byte wide SCSI bus, the maximum transfer speed is
1973 * twice the maximum transfer rate (e.g. for a wide enabled bus,
1974 * max 160MHz = max 320MB/sec).
1976 static u32 ipr_get_max_scsi_speed(struct ipr_ioa_cfg *ioa_cfg, u8 bus, u8 bus_width)
1978 struct ipr_resource_entry *res;
1979 const struct ipr_ses_table_entry *ste;
1980 u32 max_xfer_rate = IPR_MAX_SCSI_RATE(bus_width);
1982 /* Loop through each config table entry in the config table buffer */
1983 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) {
1984 if (!(IPR_IS_SES_DEVICE(res->cfgte.std_inq_data)))
1987 if (bus != res->cfgte.res_addr.bus)
1990 if (!(ste = ipr_find_ses_entry(res)))
1993 max_xfer_rate = (ste->max_bus_speed_limit * 10) / (bus_width / 8);
1996 return max_xfer_rate;
2000 * ipr_wait_iodbg_ack - Wait for an IODEBUG ACK from the IOA
2001 * @ioa_cfg: ioa config struct
2002 * @max_delay: max delay in micro-seconds to wait
2004 * Waits for an IODEBUG ACK from the IOA, doing busy looping.
2007 * 0 on success / other on failure
2009 static int ipr_wait_iodbg_ack(struct ipr_ioa_cfg *ioa_cfg, int max_delay)
2011 volatile u32 pcii_reg;
2014 /* Read interrupt reg until IOA signals IO Debug Acknowledge */
2015 while (delay < max_delay) {
2016 pcii_reg = readl(ioa_cfg->regs.sense_interrupt_reg);
2018 if (pcii_reg & IPR_PCII_IO_DEBUG_ACKNOWLEDGE)
2021 /* udelay cannot be used if delay is more than a few milliseconds */
2022 if ((delay / 1000) > MAX_UDELAY_MS)
2023 mdelay(delay / 1000);
2033 * ipr_get_ldump_data_section - Dump IOA memory
2034 * @ioa_cfg: ioa config struct
2035 * @start_addr: adapter address to dump
2036 * @dest: destination kernel buffer
2037 * @length_in_words: length to dump in 4 byte words
2040 * 0 on success / -EIO on failure
2042 static int ipr_get_ldump_data_section(struct ipr_ioa_cfg *ioa_cfg,
2044 __be32 *dest, u32 length_in_words)
2046 volatile u32 temp_pcii_reg;
2049 /* Write IOA interrupt reg starting LDUMP state */
2050 writel((IPR_UPROCI_RESET_ALERT | IPR_UPROCI_IO_DEBUG_ALERT),
2051 ioa_cfg->regs.set_uproc_interrupt_reg);
2053 /* Wait for IO debug acknowledge */
2054 if (ipr_wait_iodbg_ack(ioa_cfg,
2055 IPR_LDUMP_MAX_LONG_ACK_DELAY_IN_USEC)) {
2056 dev_err(&ioa_cfg->pdev->dev,
2057 "IOA dump long data transfer timeout\n");
2061 /* Signal LDUMP interlocked - clear IO debug ack */
2062 writel(IPR_PCII_IO_DEBUG_ACKNOWLEDGE,
2063 ioa_cfg->regs.clr_interrupt_reg);
2065 /* Write Mailbox with starting address */
2066 writel(start_addr, ioa_cfg->ioa_mailbox);
2068 /* Signal address valid - clear IOA Reset alert */
2069 writel(IPR_UPROCI_RESET_ALERT,
2070 ioa_cfg->regs.clr_uproc_interrupt_reg);
2072 for (i = 0; i < length_in_words; i++) {
2073 /* Wait for IO debug acknowledge */
2074 if (ipr_wait_iodbg_ack(ioa_cfg,
2075 IPR_LDUMP_MAX_SHORT_ACK_DELAY_IN_USEC)) {
2076 dev_err(&ioa_cfg->pdev->dev,
2077 "IOA dump short data transfer timeout\n");
2081 /* Read data from mailbox and increment destination pointer */
2082 *dest = cpu_to_be32(readl(ioa_cfg->ioa_mailbox));
2085 /* For all but the last word of data, signal data received */
2086 if (i < (length_in_words - 1)) {
2087 /* Signal dump data received - Clear IO debug Ack */
2088 writel(IPR_PCII_IO_DEBUG_ACKNOWLEDGE,
2089 ioa_cfg->regs.clr_interrupt_reg);
2093 /* Signal end of block transfer. Set reset alert then clear IO debug ack */
2094 writel(IPR_UPROCI_RESET_ALERT,
2095 ioa_cfg->regs.set_uproc_interrupt_reg);
2097 writel(IPR_UPROCI_IO_DEBUG_ALERT,
2098 ioa_cfg->regs.clr_uproc_interrupt_reg);
2100 /* Signal dump data received - Clear IO debug Ack */
2101 writel(IPR_PCII_IO_DEBUG_ACKNOWLEDGE,
2102 ioa_cfg->regs.clr_interrupt_reg);
2104 /* Wait for IOA to signal LDUMP exit - IOA reset alert will be cleared */
2105 while (delay < IPR_LDUMP_MAX_SHORT_ACK_DELAY_IN_USEC) {
2107 readl(ioa_cfg->regs.sense_uproc_interrupt_reg);
2109 if (!(temp_pcii_reg & IPR_UPROCI_RESET_ALERT))
2119 #ifdef CONFIG_SCSI_IPR_DUMP
2121 * ipr_sdt_copy - Copy Smart Dump Table to kernel buffer
2122 * @ioa_cfg: ioa config struct
2123 * @pci_address: adapter address
2124 * @length: length of data to copy
2126 * Copy data from PCI adapter to kernel buffer.
2127 * Note: length MUST be a 4 byte multiple
2129 * 0 on success / other on failure
2131 static int ipr_sdt_copy(struct ipr_ioa_cfg *ioa_cfg,
2132 unsigned long pci_address, u32 length)
2134 int bytes_copied = 0;
2135 int cur_len, rc, rem_len, rem_page_len;
2137 unsigned long lock_flags = 0;
2138 struct ipr_ioa_dump *ioa_dump = &ioa_cfg->dump->ioa_dump;
2140 while (bytes_copied < length &&
2141 (ioa_dump->hdr.len + bytes_copied) < IPR_MAX_IOA_DUMP_SIZE) {
2142 if (ioa_dump->page_offset >= PAGE_SIZE ||
2143 ioa_dump->page_offset == 0) {
2144 page = (__be32 *)__get_free_page(GFP_ATOMIC);
2148 return bytes_copied;
2151 ioa_dump->page_offset = 0;
2152 ioa_dump->ioa_data[ioa_dump->next_page_index] = page;
2153 ioa_dump->next_page_index++;
2155 page = ioa_dump->ioa_data[ioa_dump->next_page_index - 1];
2157 rem_len = length - bytes_copied;
2158 rem_page_len = PAGE_SIZE - ioa_dump->page_offset;
2159 cur_len = min(rem_len, rem_page_len);
2161 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
2162 if (ioa_cfg->sdt_state == ABORT_DUMP) {
2165 rc = ipr_get_ldump_data_section(ioa_cfg,
2166 pci_address + bytes_copied,
2167 &page[ioa_dump->page_offset / 4],
2168 (cur_len / sizeof(u32)));
2170 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
2173 ioa_dump->page_offset += cur_len;
2174 bytes_copied += cur_len;
2182 return bytes_copied;
2186 * ipr_init_dump_entry_hdr - Initialize a dump entry header.
2187 * @hdr: dump entry header struct
2192 static void ipr_init_dump_entry_hdr(struct ipr_dump_entry_header *hdr)
2194 hdr->eye_catcher = IPR_DUMP_EYE_CATCHER;
2196 hdr->offset = sizeof(*hdr);
2197 hdr->status = IPR_DUMP_STATUS_SUCCESS;
2201 * ipr_dump_ioa_type_data - Fill in the adapter type in the dump.
2202 * @ioa_cfg: ioa config struct
2203 * @driver_dump: driver dump struct
2208 static void ipr_dump_ioa_type_data(struct ipr_ioa_cfg *ioa_cfg,
2209 struct ipr_driver_dump *driver_dump)
2211 struct ipr_inquiry_page3 *ucode_vpd = &ioa_cfg->vpd_cbs->page3_data;
2213 ipr_init_dump_entry_hdr(&driver_dump->ioa_type_entry.hdr);
2214 driver_dump->ioa_type_entry.hdr.len =
2215 sizeof(struct ipr_dump_ioa_type_entry) -
2216 sizeof(struct ipr_dump_entry_header);
2217 driver_dump->ioa_type_entry.hdr.data_type = IPR_DUMP_DATA_TYPE_BINARY;
2218 driver_dump->ioa_type_entry.hdr.id = IPR_DUMP_DRIVER_TYPE_ID;
2219 driver_dump->ioa_type_entry.type = ioa_cfg->type;
2220 driver_dump->ioa_type_entry.fw_version = (ucode_vpd->major_release << 24) |
2221 (ucode_vpd->card_type << 16) | (ucode_vpd->minor_release[0] << 8) |
2222 ucode_vpd->minor_release[1];
2223 driver_dump->hdr.num_entries++;
2227 * ipr_dump_version_data - Fill in the driver version in the dump.
2228 * @ioa_cfg: ioa config struct
2229 * @driver_dump: driver dump struct
2234 static void ipr_dump_version_data(struct ipr_ioa_cfg *ioa_cfg,
2235 struct ipr_driver_dump *driver_dump)
2237 ipr_init_dump_entry_hdr(&driver_dump->version_entry.hdr);
2238 driver_dump->version_entry.hdr.len =
2239 sizeof(struct ipr_dump_version_entry) -
2240 sizeof(struct ipr_dump_entry_header);
2241 driver_dump->version_entry.hdr.data_type = IPR_DUMP_DATA_TYPE_ASCII;
2242 driver_dump->version_entry.hdr.id = IPR_DUMP_DRIVER_VERSION_ID;
2243 strcpy(driver_dump->version_entry.version, IPR_DRIVER_VERSION);
2244 driver_dump->hdr.num_entries++;
2248 * ipr_dump_trace_data - Fill in the IOA trace in the dump.
2249 * @ioa_cfg: ioa config struct
2250 * @driver_dump: driver dump struct
2255 static void ipr_dump_trace_data(struct ipr_ioa_cfg *ioa_cfg,
2256 struct ipr_driver_dump *driver_dump)
2258 ipr_init_dump_entry_hdr(&driver_dump->trace_entry.hdr);
2259 driver_dump->trace_entry.hdr.len =
2260 sizeof(struct ipr_dump_trace_entry) -
2261 sizeof(struct ipr_dump_entry_header);
2262 driver_dump->trace_entry.hdr.data_type = IPR_DUMP_DATA_TYPE_BINARY;
2263 driver_dump->trace_entry.hdr.id = IPR_DUMP_TRACE_ID;
2264 memcpy(driver_dump->trace_entry.trace, ioa_cfg->trace, IPR_TRACE_SIZE);
2265 driver_dump->hdr.num_entries++;
2269 * ipr_dump_location_data - Fill in the IOA location in the dump.
2270 * @ioa_cfg: ioa config struct
2271 * @driver_dump: driver dump struct
2276 static void ipr_dump_location_data(struct ipr_ioa_cfg *ioa_cfg,
2277 struct ipr_driver_dump *driver_dump)
2279 ipr_init_dump_entry_hdr(&driver_dump->location_entry.hdr);
2280 driver_dump->location_entry.hdr.len =
2281 sizeof(struct ipr_dump_location_entry) -
2282 sizeof(struct ipr_dump_entry_header);
2283 driver_dump->location_entry.hdr.data_type = IPR_DUMP_DATA_TYPE_ASCII;
2284 driver_dump->location_entry.hdr.id = IPR_DUMP_LOCATION_ID;
2285 strcpy(driver_dump->location_entry.location, dev_name(&ioa_cfg->pdev->dev));
2286 driver_dump->hdr.num_entries++;
2290 * ipr_get_ioa_dump - Perform a dump of the driver and adapter.
2291 * @ioa_cfg: ioa config struct
2292 * @dump: dump struct
2297 static void ipr_get_ioa_dump(struct ipr_ioa_cfg *ioa_cfg, struct ipr_dump *dump)
2299 unsigned long start_addr, sdt_word;
2300 unsigned long lock_flags = 0;
2301 struct ipr_driver_dump *driver_dump = &dump->driver_dump;
2302 struct ipr_ioa_dump *ioa_dump = &dump->ioa_dump;
2303 u32 num_entries, start_off, end_off;
2304 u32 bytes_to_copy, bytes_copied, rc;
2305 struct ipr_sdt *sdt;
2310 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
2312 if (ioa_cfg->sdt_state != GET_DUMP) {
2313 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
2317 start_addr = readl(ioa_cfg->ioa_mailbox);
2319 if (!ipr_sdt_is_fmt2(start_addr)) {
2320 dev_err(&ioa_cfg->pdev->dev,
2321 "Invalid dump table format: %lx\n", start_addr);
2322 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
2326 dev_err(&ioa_cfg->pdev->dev, "Dump of IOA initiated\n");
2328 driver_dump->hdr.eye_catcher = IPR_DUMP_EYE_CATCHER;
2330 /* Initialize the overall dump header */
2331 driver_dump->hdr.len = sizeof(struct ipr_driver_dump);
2332 driver_dump->hdr.num_entries = 1;
2333 driver_dump->hdr.first_entry_offset = sizeof(struct ipr_dump_header);
2334 driver_dump->hdr.status = IPR_DUMP_STATUS_SUCCESS;
2335 driver_dump->hdr.os = IPR_DUMP_OS_LINUX;
2336 driver_dump->hdr.driver_name = IPR_DUMP_DRIVER_NAME;
2338 ipr_dump_version_data(ioa_cfg, driver_dump);
2339 ipr_dump_location_data(ioa_cfg, driver_dump);
2340 ipr_dump_ioa_type_data(ioa_cfg, driver_dump);
2341 ipr_dump_trace_data(ioa_cfg, driver_dump);
2343 /* Update dump_header */
2344 driver_dump->hdr.len += sizeof(struct ipr_dump_entry_header);
2346 /* IOA Dump entry */
2347 ipr_init_dump_entry_hdr(&ioa_dump->hdr);
2348 ioa_dump->format = IPR_SDT_FMT2;
2349 ioa_dump->hdr.len = 0;
2350 ioa_dump->hdr.data_type = IPR_DUMP_DATA_TYPE_BINARY;
2351 ioa_dump->hdr.id = IPR_DUMP_IOA_DUMP_ID;
2353 /* First entries in sdt are actually a list of dump addresses and
2354 lengths to gather the real dump data. sdt represents the pointer
2355 to the ioa generated dump table. Dump data will be extracted based
2356 on entries in this table */
2357 sdt = &ioa_dump->sdt;
2359 rc = ipr_get_ldump_data_section(ioa_cfg, start_addr, (__be32 *)sdt,
2360 sizeof(struct ipr_sdt) / sizeof(__be32));
2362 /* Smart Dump table is ready to use and the first entry is valid */
2363 if (rc || (be32_to_cpu(sdt->hdr.state) != IPR_FMT2_SDT_READY_TO_USE)) {
2364 dev_err(&ioa_cfg->pdev->dev,
2365 "Dump of IOA failed. Dump table not valid: %d, %X.\n",
2366 rc, be32_to_cpu(sdt->hdr.state));
2367 driver_dump->hdr.status = IPR_DUMP_STATUS_FAILED;
2368 ioa_cfg->sdt_state = DUMP_OBTAINED;
2369 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
2373 num_entries = be32_to_cpu(sdt->hdr.num_entries_used);
2375 if (num_entries > IPR_NUM_SDT_ENTRIES)
2376 num_entries = IPR_NUM_SDT_ENTRIES;
2378 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
2380 for (i = 0; i < num_entries; i++) {
2381 if (ioa_dump->hdr.len > IPR_MAX_IOA_DUMP_SIZE) {
2382 driver_dump->hdr.status = IPR_DUMP_STATUS_QUAL_SUCCESS;
2386 if (sdt->entry[i].flags & IPR_SDT_VALID_ENTRY) {
2387 sdt_word = be32_to_cpu(sdt->entry[i].bar_str_offset);
2388 start_off = sdt_word & IPR_FMT2_MBX_ADDR_MASK;
2389 end_off = be32_to_cpu(sdt->entry[i].end_offset);
2391 if (ipr_sdt_is_fmt2(sdt_word) && sdt_word) {
2392 bytes_to_copy = end_off - start_off;
2393 if (bytes_to_copy > IPR_MAX_IOA_DUMP_SIZE) {
2394 sdt->entry[i].flags &= ~IPR_SDT_VALID_ENTRY;
2398 /* Copy data from adapter to driver buffers */
2399 bytes_copied = ipr_sdt_copy(ioa_cfg, sdt_word,
2402 ioa_dump->hdr.len += bytes_copied;
2404 if (bytes_copied != bytes_to_copy) {
2405 driver_dump->hdr.status = IPR_DUMP_STATUS_QUAL_SUCCESS;
2412 dev_err(&ioa_cfg->pdev->dev, "Dump of IOA completed.\n");
2414 /* Update dump_header */
2415 driver_dump->hdr.len += ioa_dump->hdr.len;
2417 ioa_cfg->sdt_state = DUMP_OBTAINED;
2422 #define ipr_get_ioa_dump(ioa_cfg, dump) do { } while(0)
2426 * ipr_release_dump - Free adapter dump memory
2427 * @kref: kref struct
2432 static void ipr_release_dump(struct kref *kref)
2434 struct ipr_dump *dump = container_of(kref,struct ipr_dump,kref);
2435 struct ipr_ioa_cfg *ioa_cfg = dump->ioa_cfg;
2436 unsigned long lock_flags = 0;
2440 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
2441 ioa_cfg->dump = NULL;
2442 ioa_cfg->sdt_state = INACTIVE;
2443 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
2445 for (i = 0; i < dump->ioa_dump.next_page_index; i++)
2446 free_page((unsigned long) dump->ioa_dump.ioa_data[i]);
2453 * ipr_worker_thread - Worker thread
2454 * @work: ioa config struct
2456 * Called at task level from a work thread. This function takes care
2457 * of adding and removing device from the mid-layer as configuration
2458 * changes are detected by the adapter.
2463 static void ipr_worker_thread(struct work_struct *work)
2465 unsigned long lock_flags;
2466 struct ipr_resource_entry *res;
2467 struct scsi_device *sdev;
2468 struct ipr_dump *dump;
2469 struct ipr_ioa_cfg *ioa_cfg =
2470 container_of(work, struct ipr_ioa_cfg, work_q);
2471 u8 bus, target, lun;
2475 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
2477 if (ioa_cfg->sdt_state == GET_DUMP) {
2478 dump = ioa_cfg->dump;
2480 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
2483 kref_get(&dump->kref);
2484 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
2485 ipr_get_ioa_dump(ioa_cfg, dump);
2486 kref_put(&dump->kref, ipr_release_dump);
2488 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
2489 if (ioa_cfg->sdt_state == DUMP_OBTAINED)
2490 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
2491 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
2498 if (!ioa_cfg->allow_cmds || !ioa_cfg->allow_ml_add_del) {
2499 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
2503 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) {
2504 if (res->del_from_ml && res->sdev) {
2507 if (!scsi_device_get(sdev)) {
2508 list_move_tail(&res->queue, &ioa_cfg->free_res_q);
2509 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
2510 scsi_remove_device(sdev);
2511 scsi_device_put(sdev);
2512 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
2519 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) {
2520 if (res->add_to_ml) {
2521 bus = res->cfgte.res_addr.bus;
2522 target = res->cfgte.res_addr.target;
2523 lun = res->cfgte.res_addr.lun;
2525 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
2526 scsi_add_device(ioa_cfg->host, bus, target, lun);
2527 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
2532 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
2533 kobject_uevent(&ioa_cfg->host->shost_dev.kobj, KOBJ_CHANGE);
2537 #ifdef CONFIG_SCSI_IPR_TRACE
2539 * ipr_read_trace - Dump the adapter trace
2540 * @kobj: kobject struct
2541 * @bin_attr: bin_attribute struct
2544 * @count: buffer size
2547 * number of bytes printed to buffer
2549 static ssize_t ipr_read_trace(struct kobject *kobj,
2550 struct bin_attribute *bin_attr,
2551 char *buf, loff_t off, size_t count)
2553 struct device *dev = container_of(kobj, struct device, kobj);
2554 struct Scsi_Host *shost = class_to_shost(dev);
2555 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
2556 unsigned long lock_flags = 0;
2559 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
2560 ret = memory_read_from_buffer(buf, count, &off, ioa_cfg->trace,
2562 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
2567 static struct bin_attribute ipr_trace_attr = {
2573 .read = ipr_read_trace,
2577 static const struct {
2578 enum ipr_cache_state state;
2580 } cache_state [] = {
2581 { CACHE_NONE, "none" },
2582 { CACHE_DISABLED, "disabled" },
2583 { CACHE_ENABLED, "enabled" }
2587 * ipr_show_write_caching - Show the write caching attribute
2588 * @dev: device struct
2592 * number of bytes printed to buffer
2594 static ssize_t ipr_show_write_caching(struct device *dev,
2595 struct device_attribute *attr, char *buf)
2597 struct Scsi_Host *shost = class_to_shost(dev);
2598 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
2599 unsigned long lock_flags = 0;
2602 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
2603 for (i = 0; i < ARRAY_SIZE(cache_state); i++) {
2604 if (cache_state[i].state == ioa_cfg->cache_state) {
2605 len = snprintf(buf, PAGE_SIZE, "%s\n", cache_state[i].name);
2609 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
2615 * ipr_store_write_caching - Enable/disable adapter write cache
2616 * @dev: device struct
2618 * @count: buffer size
2620 * This function will enable/disable adapter write cache.
2623 * count on success / other on failure
2625 static ssize_t ipr_store_write_caching(struct device *dev,
2626 struct device_attribute *attr,
2627 const char *buf, size_t count)
2629 struct Scsi_Host *shost = class_to_shost(dev);
2630 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
2631 unsigned long lock_flags = 0;
2632 enum ipr_cache_state new_state = CACHE_INVALID;
2635 if (!capable(CAP_SYS_ADMIN))
2637 if (ioa_cfg->cache_state == CACHE_NONE)
2640 for (i = 0; i < ARRAY_SIZE(cache_state); i++) {
2641 if (!strncmp(cache_state[i].name, buf, strlen(cache_state[i].name))) {
2642 new_state = cache_state[i].state;
2647 if (new_state != CACHE_DISABLED && new_state != CACHE_ENABLED)
2650 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
2651 if (ioa_cfg->cache_state == new_state) {
2652 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
2656 ioa_cfg->cache_state = new_state;
2657 dev_info(&ioa_cfg->pdev->dev, "%s adapter write cache.\n",
2658 new_state == CACHE_ENABLED ? "Enabling" : "Disabling");
2659 if (!ioa_cfg->in_reset_reload)
2660 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NORMAL);
2661 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
2662 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
2667 static struct device_attribute ipr_ioa_cache_attr = {
2669 .name = "write_cache",
2670 .mode = S_IRUGO | S_IWUSR,
2672 .show = ipr_show_write_caching,
2673 .store = ipr_store_write_caching
2677 * ipr_show_fw_version - Show the firmware version
2678 * @dev: class device struct
2682 * number of bytes printed to buffer
2684 static ssize_t ipr_show_fw_version(struct device *dev,
2685 struct device_attribute *attr, char *buf)
2687 struct Scsi_Host *shost = class_to_shost(dev);
2688 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
2689 struct ipr_inquiry_page3 *ucode_vpd = &ioa_cfg->vpd_cbs->page3_data;
2690 unsigned long lock_flags = 0;
2693 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
2694 len = snprintf(buf, PAGE_SIZE, "%02X%02X%02X%02X\n",
2695 ucode_vpd->major_release, ucode_vpd->card_type,
2696 ucode_vpd->minor_release[0],
2697 ucode_vpd->minor_release[1]);
2698 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
2702 static struct device_attribute ipr_fw_version_attr = {
2704 .name = "fw_version",
2707 .show = ipr_show_fw_version,
2711 * ipr_show_log_level - Show the adapter's error logging level
2712 * @dev: class device struct
2716 * number of bytes printed to buffer
2718 static ssize_t ipr_show_log_level(struct device *dev,
2719 struct device_attribute *attr, char *buf)
2721 struct Scsi_Host *shost = class_to_shost(dev);
2722 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
2723 unsigned long lock_flags = 0;
2726 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
2727 len = snprintf(buf, PAGE_SIZE, "%d\n", ioa_cfg->log_level);
2728 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
2733 * ipr_store_log_level - Change the adapter's error logging level
2734 * @dev: class device struct
2738 * number of bytes printed to buffer
2740 static ssize_t ipr_store_log_level(struct device *dev,
2741 struct device_attribute *attr,
2742 const char *buf, size_t count)
2744 struct Scsi_Host *shost = class_to_shost(dev);
2745 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
2746 unsigned long lock_flags = 0;
2748 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
2749 ioa_cfg->log_level = simple_strtoul(buf, NULL, 10);
2750 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
2754 static struct device_attribute ipr_log_level_attr = {
2756 .name = "log_level",
2757 .mode = S_IRUGO | S_IWUSR,
2759 .show = ipr_show_log_level,
2760 .store = ipr_store_log_level
2764 * ipr_store_diagnostics - IOA Diagnostics interface
2765 * @dev: device struct
2767 * @count: buffer size
2769 * This function will reset the adapter and wait a reasonable
2770 * amount of time for any errors that the adapter might log.
2773 * count on success / other on failure
2775 static ssize_t ipr_store_diagnostics(struct device *dev,
2776 struct device_attribute *attr,
2777 const char *buf, size_t count)
2779 struct Scsi_Host *shost = class_to_shost(dev);
2780 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
2781 unsigned long lock_flags = 0;
2784 if (!capable(CAP_SYS_ADMIN))
2787 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
2788 while(ioa_cfg->in_reset_reload) {
2789 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
2790 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
2791 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
2794 ioa_cfg->errors_logged = 0;
2795 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NORMAL);
2797 if (ioa_cfg->in_reset_reload) {
2798 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
2799 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
2801 /* Wait for a second for any errors to be logged */
2804 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
2808 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
2809 if (ioa_cfg->in_reset_reload || ioa_cfg->errors_logged)
2811 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
2816 static struct device_attribute ipr_diagnostics_attr = {
2818 .name = "run_diagnostics",
2821 .store = ipr_store_diagnostics
2825 * ipr_show_adapter_state - Show the adapter's state
2826 * @class_dev: device struct
2830 * number of bytes printed to buffer
2832 static ssize_t ipr_show_adapter_state(struct device *dev,
2833 struct device_attribute *attr, char *buf)
2835 struct Scsi_Host *shost = class_to_shost(dev);
2836 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
2837 unsigned long lock_flags = 0;
2840 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
2841 if (ioa_cfg->ioa_is_dead)
2842 len = snprintf(buf, PAGE_SIZE, "offline\n");
2844 len = snprintf(buf, PAGE_SIZE, "online\n");
2845 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
2850 * ipr_store_adapter_state - Change adapter state
2851 * @dev: device struct
2853 * @count: buffer size
2855 * This function will change the adapter's state.
2858 * count on success / other on failure
2860 static ssize_t ipr_store_adapter_state(struct device *dev,
2861 struct device_attribute *attr,
2862 const char *buf, size_t count)
2864 struct Scsi_Host *shost = class_to_shost(dev);
2865 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
2866 unsigned long lock_flags;
2869 if (!capable(CAP_SYS_ADMIN))
2872 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
2873 if (ioa_cfg->ioa_is_dead && !strncmp(buf, "online", 6)) {
2874 ioa_cfg->ioa_is_dead = 0;
2875 ioa_cfg->reset_retries = 0;
2876 ioa_cfg->in_ioa_bringdown = 0;
2877 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
2879 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
2880 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
2885 static struct device_attribute ipr_ioa_state_attr = {
2887 .name = "online_state",
2888 .mode = S_IRUGO | S_IWUSR,
2890 .show = ipr_show_adapter_state,
2891 .store = ipr_store_adapter_state
2895 * ipr_store_reset_adapter - Reset the adapter
2896 * @dev: device struct
2898 * @count: buffer size
2900 * This function will reset the adapter.
2903 * count on success / other on failure
2905 static ssize_t ipr_store_reset_adapter(struct device *dev,
2906 struct device_attribute *attr,
2907 const char *buf, size_t count)
2909 struct Scsi_Host *shost = class_to_shost(dev);
2910 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
2911 unsigned long lock_flags;
2914 if (!capable(CAP_SYS_ADMIN))
2917 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
2918 if (!ioa_cfg->in_reset_reload)
2919 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NORMAL);
2920 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
2921 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
2926 static struct device_attribute ipr_ioa_reset_attr = {
2928 .name = "reset_host",
2931 .store = ipr_store_reset_adapter
2935 * ipr_alloc_ucode_buffer - Allocates a microcode download buffer
2936 * @buf_len: buffer length
2938 * Allocates a DMA'able buffer in chunks and assembles a scatter/gather
2939 * list to use for microcode download
2942 * pointer to sglist / NULL on failure
2944 static struct ipr_sglist *ipr_alloc_ucode_buffer(int buf_len)
2946 int sg_size, order, bsize_elem, num_elem, i, j;
2947 struct ipr_sglist *sglist;
2948 struct scatterlist *scatterlist;
2951 /* Get the minimum size per scatter/gather element */
2952 sg_size = buf_len / (IPR_MAX_SGLIST - 1);
2954 /* Get the actual size per element */
2955 order = get_order(sg_size);
2957 /* Determine the actual number of bytes per element */
2958 bsize_elem = PAGE_SIZE * (1 << order);
2960 /* Determine the actual number of sg entries needed */
2961 if (buf_len % bsize_elem)
2962 num_elem = (buf_len / bsize_elem) + 1;
2964 num_elem = buf_len / bsize_elem;
2966 /* Allocate a scatter/gather list for the DMA */
2967 sglist = kzalloc(sizeof(struct ipr_sglist) +
2968 (sizeof(struct scatterlist) * (num_elem - 1)),
2971 if (sglist == NULL) {
2976 scatterlist = sglist->scatterlist;
2977 sg_init_table(scatterlist, num_elem);
2979 sglist->order = order;
2980 sglist->num_sg = num_elem;
2982 /* Allocate a bunch of sg elements */
2983 for (i = 0; i < num_elem; i++) {
2984 page = alloc_pages(GFP_KERNEL, order);
2988 /* Free up what we already allocated */
2989 for (j = i - 1; j >= 0; j--)
2990 __free_pages(sg_page(&scatterlist[j]), order);
2995 sg_set_page(&scatterlist[i], page, 0, 0);
3002 * ipr_free_ucode_buffer - Frees a microcode download buffer
3003 * @p_dnld: scatter/gather list pointer
3005 * Free a DMA'able ucode download buffer previously allocated with
3006 * ipr_alloc_ucode_buffer
3011 static void ipr_free_ucode_buffer(struct ipr_sglist *sglist)
3015 for (i = 0; i < sglist->num_sg; i++)
3016 __free_pages(sg_page(&sglist->scatterlist[i]), sglist->order);
3022 * ipr_copy_ucode_buffer - Copy user buffer to kernel buffer
3023 * @sglist: scatter/gather list pointer
3024 * @buffer: buffer pointer
3025 * @len: buffer length
3027 * Copy a microcode image from a user buffer into a buffer allocated by
3028 * ipr_alloc_ucode_buffer
3031 * 0 on success / other on failure
3033 static int ipr_copy_ucode_buffer(struct ipr_sglist *sglist,
3034 u8 *buffer, u32 len)
3036 int bsize_elem, i, result = 0;
3037 struct scatterlist *scatterlist;
3040 /* Determine the actual number of bytes per element */
3041 bsize_elem = PAGE_SIZE * (1 << sglist->order);
3043 scatterlist = sglist->scatterlist;
3045 for (i = 0; i < (len / bsize_elem); i++, buffer += bsize_elem) {
3046 struct page *page = sg_page(&scatterlist[i]);
3049 memcpy(kaddr, buffer, bsize_elem);
3052 scatterlist[i].length = bsize_elem;
3060 if (len % bsize_elem) {
3061 struct page *page = sg_page(&scatterlist[i]);
3064 memcpy(kaddr, buffer, len % bsize_elem);
3067 scatterlist[i].length = len % bsize_elem;
3070 sglist->buffer_len = len;
3075 * ipr_build_ucode_ioadl64 - Build a microcode download IOADL
3076 * @ipr_cmd: ipr command struct
3077 * @sglist: scatter/gather list
3079 * Builds a microcode download IOA data list (IOADL).
3082 static void ipr_build_ucode_ioadl64(struct ipr_cmnd *ipr_cmd,
3083 struct ipr_sglist *sglist)
3085 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
3086 struct ipr_ioadl64_desc *ioadl64 = ipr_cmd->i.ioadl64;
3087 struct scatterlist *scatterlist = sglist->scatterlist;
3090 ipr_cmd->dma_use_sg = sglist->num_dma_sg;
3091 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ;
3092 ioarcb->data_transfer_length = cpu_to_be32(sglist->buffer_len);
3095 cpu_to_be32(sizeof(struct ipr_ioadl64_desc) * ipr_cmd->dma_use_sg);
3096 for (i = 0; i < ipr_cmd->dma_use_sg; i++) {
3097 ioadl64[i].flags = cpu_to_be32(IPR_IOADL_FLAGS_WRITE);
3098 ioadl64[i].data_len = cpu_to_be32(sg_dma_len(&scatterlist[i]));
3099 ioadl64[i].address = cpu_to_be64(sg_dma_address(&scatterlist[i]));
3102 ioadl64[i-1].flags |= cpu_to_be32(IPR_IOADL_FLAGS_LAST);
3106 * ipr_build_ucode_ioadl - Build a microcode download IOADL
3107 * @ipr_cmd: ipr command struct
3108 * @sglist: scatter/gather list
3110 * Builds a microcode download IOA data list (IOADL).
3113 static void ipr_build_ucode_ioadl(struct ipr_cmnd *ipr_cmd,
3114 struct ipr_sglist *sglist)
3116 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
3117 struct ipr_ioadl_desc *ioadl = ipr_cmd->i.ioadl;
3118 struct scatterlist *scatterlist = sglist->scatterlist;
3121 ipr_cmd->dma_use_sg = sglist->num_dma_sg;
3122 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ;
3123 ioarcb->data_transfer_length = cpu_to_be32(sglist->buffer_len);
3126 cpu_to_be32(sizeof(struct ipr_ioadl_desc) * ipr_cmd->dma_use_sg);
3128 for (i = 0; i < ipr_cmd->dma_use_sg; i++) {
3129 ioadl[i].flags_and_data_len =
3130 cpu_to_be32(IPR_IOADL_FLAGS_WRITE | sg_dma_len(&scatterlist[i]));
3132 cpu_to_be32(sg_dma_address(&scatterlist[i]));
3135 ioadl[i-1].flags_and_data_len |=
3136 cpu_to_be32(IPR_IOADL_FLAGS_LAST);
3140 * ipr_update_ioa_ucode - Update IOA's microcode
3141 * @ioa_cfg: ioa config struct
3142 * @sglist: scatter/gather list
3144 * Initiate an adapter reset to update the IOA's microcode
3147 * 0 on success / -EIO on failure
3149 static int ipr_update_ioa_ucode(struct ipr_ioa_cfg *ioa_cfg,
3150 struct ipr_sglist *sglist)
3152 unsigned long lock_flags;
3154 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3155 while(ioa_cfg->in_reset_reload) {
3156 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3157 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
3158 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3161 if (ioa_cfg->ucode_sglist) {
3162 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3163 dev_err(&ioa_cfg->pdev->dev,
3164 "Microcode download already in progress\n");
3168 sglist->num_dma_sg = pci_map_sg(ioa_cfg->pdev, sglist->scatterlist,
3169 sglist->num_sg, DMA_TO_DEVICE);
3171 if (!sglist->num_dma_sg) {
3172 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3173 dev_err(&ioa_cfg->pdev->dev,
3174 "Failed to map microcode download buffer!\n");
3178 ioa_cfg->ucode_sglist = sglist;
3179 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NORMAL);
3180 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3181 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
3183 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3184 ioa_cfg->ucode_sglist = NULL;
3185 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3190 * ipr_store_update_fw - Update the firmware on the adapter
3191 * @class_dev: device struct
3193 * @count: buffer size
3195 * This function will update the firmware on the adapter.
3198 * count on success / other on failure
3200 static ssize_t ipr_store_update_fw(struct device *dev,
3201 struct device_attribute *attr,
3202 const char *buf, size_t count)
3204 struct Scsi_Host *shost = class_to_shost(dev);
3205 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
3206 struct ipr_ucode_image_header *image_hdr;
3207 const struct firmware *fw_entry;
3208 struct ipr_sglist *sglist;
3211 int len, result, dnld_size;
3213 if (!capable(CAP_SYS_ADMIN))
3216 len = snprintf(fname, 99, "%s", buf);
3217 fname[len-1] = '\0';
3219 if(request_firmware(&fw_entry, fname, &ioa_cfg->pdev->dev)) {
3220 dev_err(&ioa_cfg->pdev->dev, "Firmware file %s not found\n", fname);
3224 image_hdr = (struct ipr_ucode_image_header *)fw_entry->data;
3226 if (be32_to_cpu(image_hdr->header_length) > fw_entry->size ||
3227 (ioa_cfg->vpd_cbs->page3_data.card_type &&
3228 ioa_cfg->vpd_cbs->page3_data.card_type != image_hdr->card_type)) {
3229 dev_err(&ioa_cfg->pdev->dev, "Invalid microcode buffer\n");
3230 release_firmware(fw_entry);
3234 src = (u8 *)image_hdr + be32_to_cpu(image_hdr->header_length);
3235 dnld_size = fw_entry->size - be32_to_cpu(image_hdr->header_length);
3236 sglist = ipr_alloc_ucode_buffer(dnld_size);
3239 dev_err(&ioa_cfg->pdev->dev, "Microcode buffer allocation failed\n");
3240 release_firmware(fw_entry);
3244 result = ipr_copy_ucode_buffer(sglist, src, dnld_size);
3247 dev_err(&ioa_cfg->pdev->dev,
3248 "Microcode buffer copy to DMA buffer failed\n");
3252 result = ipr_update_ioa_ucode(ioa_cfg, sglist);
3257 ipr_free_ucode_buffer(sglist);
3258 release_firmware(fw_entry);
3262 static struct device_attribute ipr_update_fw_attr = {
3264 .name = "update_fw",
3267 .store = ipr_store_update_fw
3270 static struct device_attribute *ipr_ioa_attrs[] = {
3271 &ipr_fw_version_attr,
3272 &ipr_log_level_attr,
3273 &ipr_diagnostics_attr,
3274 &ipr_ioa_state_attr,
3275 &ipr_ioa_reset_attr,
3276 &ipr_update_fw_attr,
3277 &ipr_ioa_cache_attr,
3281 #ifdef CONFIG_SCSI_IPR_DUMP
3283 * ipr_read_dump - Dump the adapter
3284 * @kobj: kobject struct
3285 * @bin_attr: bin_attribute struct
3288 * @count: buffer size
3291 * number of bytes printed to buffer
3293 static ssize_t ipr_read_dump(struct kobject *kobj,
3294 struct bin_attribute *bin_attr,
3295 char *buf, loff_t off, size_t count)
3297 struct device *cdev = container_of(kobj, struct device, kobj);
3298 struct Scsi_Host *shost = class_to_shost(cdev);
3299 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
3300 struct ipr_dump *dump;
3301 unsigned long lock_flags = 0;
3306 if (!capable(CAP_SYS_ADMIN))
3309 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3310 dump = ioa_cfg->dump;
3312 if (ioa_cfg->sdt_state != DUMP_OBTAINED || !dump) {
3313 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3316 kref_get(&dump->kref);
3317 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3319 if (off > dump->driver_dump.hdr.len) {
3320 kref_put(&dump->kref, ipr_release_dump);
3324 if (off + count > dump->driver_dump.hdr.len) {
3325 count = dump->driver_dump.hdr.len - off;
3329 if (count && off < sizeof(dump->driver_dump)) {
3330 if (off + count > sizeof(dump->driver_dump))
3331 len = sizeof(dump->driver_dump) - off;
3334 src = (u8 *)&dump->driver_dump + off;
3335 memcpy(buf, src, len);
3341 off -= sizeof(dump->driver_dump);
3343 if (count && off < offsetof(struct ipr_ioa_dump, ioa_data)) {
3344 if (off + count > offsetof(struct ipr_ioa_dump, ioa_data))
3345 len = offsetof(struct ipr_ioa_dump, ioa_data) - off;
3348 src = (u8 *)&dump->ioa_dump + off;
3349 memcpy(buf, src, len);
3355 off -= offsetof(struct ipr_ioa_dump, ioa_data);
3358 if ((off & PAGE_MASK) != ((off + count) & PAGE_MASK))
3359 len = PAGE_ALIGN(off) - off;
3362 src = (u8 *)dump->ioa_dump.ioa_data[(off & PAGE_MASK) >> PAGE_SHIFT];
3363 src += off & ~PAGE_MASK;
3364 memcpy(buf, src, len);
3370 kref_put(&dump->kref, ipr_release_dump);
3375 * ipr_alloc_dump - Prepare for adapter dump
3376 * @ioa_cfg: ioa config struct
3379 * 0 on success / other on failure
3381 static int ipr_alloc_dump(struct ipr_ioa_cfg *ioa_cfg)
3383 struct ipr_dump *dump;
3384 unsigned long lock_flags = 0;
3386 dump = kzalloc(sizeof(struct ipr_dump), GFP_KERNEL);
3389 ipr_err("Dump memory allocation failed\n");
3393 kref_init(&dump->kref);
3394 dump->ioa_cfg = ioa_cfg;
3396 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3398 if (INACTIVE != ioa_cfg->sdt_state) {
3399 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3404 ioa_cfg->dump = dump;
3405 ioa_cfg->sdt_state = WAIT_FOR_DUMP;
3406 if (ioa_cfg->ioa_is_dead && !ioa_cfg->dump_taken) {
3407 ioa_cfg->dump_taken = 1;
3408 schedule_work(&ioa_cfg->work_q);
3410 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3416 * ipr_free_dump - Free adapter dump memory
3417 * @ioa_cfg: ioa config struct
3420 * 0 on success / other on failure
3422 static int ipr_free_dump(struct ipr_ioa_cfg *ioa_cfg)
3424 struct ipr_dump *dump;
3425 unsigned long lock_flags = 0;
3429 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3430 dump = ioa_cfg->dump;
3432 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3436 ioa_cfg->dump = NULL;
3437 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3439 kref_put(&dump->kref, ipr_release_dump);
3446 * ipr_write_dump - Setup dump state of adapter
3447 * @kobj: kobject struct
3448 * @bin_attr: bin_attribute struct
3451 * @count: buffer size
3454 * number of bytes printed to buffer
3456 static ssize_t ipr_write_dump(struct kobject *kobj,
3457 struct bin_attribute *bin_attr,
3458 char *buf, loff_t off, size_t count)
3460 struct device *cdev = container_of(kobj, struct device, kobj);
3461 struct Scsi_Host *shost = class_to_shost(cdev);
3462 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
3465 if (!capable(CAP_SYS_ADMIN))
3469 rc = ipr_alloc_dump(ioa_cfg);
3470 else if (buf[0] == '0')
3471 rc = ipr_free_dump(ioa_cfg);
3481 static struct bin_attribute ipr_dump_attr = {
3484 .mode = S_IRUSR | S_IWUSR,
3487 .read = ipr_read_dump,
3488 .write = ipr_write_dump
3491 static int ipr_free_dump(struct ipr_ioa_cfg *ioa_cfg) { return 0; };
3495 * ipr_change_queue_depth - Change the device's queue depth
3496 * @sdev: scsi device struct
3497 * @qdepth: depth to set
3498 * @reason: calling context
3503 static int ipr_change_queue_depth(struct scsi_device *sdev, int qdepth,
3506 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)sdev->host->hostdata;
3507 struct ipr_resource_entry *res;
3508 unsigned long lock_flags = 0;
3510 if (reason != SCSI_QDEPTH_DEFAULT)
3513 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3514 res = (struct ipr_resource_entry *)sdev->hostdata;
3516 if (res && ipr_is_gata(res) && qdepth > IPR_MAX_CMD_PER_ATA_LUN)
3517 qdepth = IPR_MAX_CMD_PER_ATA_LUN;
3518 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3520 scsi_adjust_queue_depth(sdev, scsi_get_tag_type(sdev), qdepth);
3521 return sdev->queue_depth;
3525 * ipr_change_queue_type - Change the device's queue type
3526 * @dsev: scsi device struct
3527 * @tag_type: type of tags to use
3530 * actual queue type set
3532 static int ipr_change_queue_type(struct scsi_device *sdev, int tag_type)
3534 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)sdev->host->hostdata;
3535 struct ipr_resource_entry *res;
3536 unsigned long lock_flags = 0;
3538 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3539 res = (struct ipr_resource_entry *)sdev->hostdata;
3542 if (ipr_is_gscsi(res) && sdev->tagged_supported) {
3544 * We don't bother quiescing the device here since the
3545 * adapter firmware does it for us.
3547 scsi_set_tag_type(sdev, tag_type);
3550 scsi_activate_tcq(sdev, sdev->queue_depth);
3552 scsi_deactivate_tcq(sdev, sdev->queue_depth);
3558 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3563 * ipr_show_adapter_handle - Show the adapter's resource handle for this device
3564 * @dev: device struct
3568 * number of bytes printed to buffer
3570 static ssize_t ipr_show_adapter_handle(struct device *dev, struct device_attribute *attr, char *buf)
3572 struct scsi_device *sdev = to_scsi_device(dev);
3573 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)sdev->host->hostdata;
3574 struct ipr_resource_entry *res;
3575 unsigned long lock_flags = 0;
3576 ssize_t len = -ENXIO;
3578 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3579 res = (struct ipr_resource_entry *)sdev->hostdata;
3581 len = snprintf(buf, PAGE_SIZE, "%08X\n", res->cfgte.res_handle);
3582 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3586 static struct device_attribute ipr_adapter_handle_attr = {
3588 .name = "adapter_handle",
3591 .show = ipr_show_adapter_handle
3594 static struct device_attribute *ipr_dev_attrs[] = {
3595 &ipr_adapter_handle_attr,
3600 * ipr_biosparam - Return the HSC mapping
3601 * @sdev: scsi device struct
3602 * @block_device: block device pointer
3603 * @capacity: capacity of the device
3604 * @parm: Array containing returned HSC values.
3606 * This function generates the HSC parms that fdisk uses.
3607 * We want to make sure we return something that places partitions
3608 * on 4k boundaries for best performance with the IOA.
3613 static int ipr_biosparam(struct scsi_device *sdev,
3614 struct block_device *block_device,
3615 sector_t capacity, int *parm)
3623 cylinders = capacity;
3624 sector_div(cylinders, (128 * 32));
3629 parm[2] = cylinders;
3635 * ipr_find_starget - Find target based on bus/target.
3636 * @starget: scsi target struct
3639 * resource entry pointer if found / NULL if not found
3641 static struct ipr_resource_entry *ipr_find_starget(struct scsi_target *starget)
3643 struct Scsi_Host *shost = dev_to_shost(&starget->dev);
3644 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) shost->hostdata;
3645 struct ipr_resource_entry *res;
3647 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) {
3648 if ((res->cfgte.res_addr.bus == starget->channel) &&
3649 (res->cfgte.res_addr.target == starget->id) &&
3650 (res->cfgte.res_addr.lun == 0)) {
3658 static struct ata_port_info sata_port_info;
3661 * ipr_target_alloc - Prepare for commands to a SCSI target
3662 * @starget: scsi target struct
3664 * If the device is a SATA device, this function allocates an
3665 * ATA port with libata, else it does nothing.
3668 * 0 on success / non-0 on failure
3670 static int ipr_target_alloc(struct scsi_target *starget)
3672 struct Scsi_Host *shost = dev_to_shost(&starget->dev);
3673 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) shost->hostdata;
3674 struct ipr_sata_port *sata_port;
3675 struct ata_port *ap;
3676 struct ipr_resource_entry *res;
3677 unsigned long lock_flags;
3679 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3680 res = ipr_find_starget(starget);
3681 starget->hostdata = NULL;
3683 if (res && ipr_is_gata(res)) {
3684 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3685 sata_port = kzalloc(sizeof(*sata_port), GFP_KERNEL);
3689 ap = ata_sas_port_alloc(&ioa_cfg->ata_host, &sata_port_info, shost);
3691 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3692 sata_port->ioa_cfg = ioa_cfg;
3694 sata_port->res = res;
3696 res->sata_port = sata_port;
3697 ap->private_data = sata_port;
3698 starget->hostdata = sata_port;
3704 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3710 * ipr_target_destroy - Destroy a SCSI target
3711 * @starget: scsi target struct
3713 * If the device was a SATA device, this function frees the libata
3714 * ATA port, else it does nothing.
3717 static void ipr_target_destroy(struct scsi_target *starget)
3719 struct ipr_sata_port *sata_port = starget->hostdata;
3722 starget->hostdata = NULL;
3723 ata_sas_port_destroy(sata_port->ap);
3729 * ipr_find_sdev - Find device based on bus/target/lun.
3730 * @sdev: scsi device struct
3733 * resource entry pointer if found / NULL if not found
3735 static struct ipr_resource_entry *ipr_find_sdev(struct scsi_device *sdev)
3737 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) sdev->host->hostdata;
3738 struct ipr_resource_entry *res;
3740 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) {
3741 if ((res->cfgte.res_addr.bus == sdev->channel) &&
3742 (res->cfgte.res_addr.target == sdev->id) &&
3743 (res->cfgte.res_addr.lun == sdev->lun))
3751 * ipr_slave_destroy - Unconfigure a SCSI device
3752 * @sdev: scsi device struct
3757 static void ipr_slave_destroy(struct scsi_device *sdev)
3759 struct ipr_resource_entry *res;
3760 struct ipr_ioa_cfg *ioa_cfg;
3761 unsigned long lock_flags = 0;
3763 ioa_cfg = (struct ipr_ioa_cfg *) sdev->host->hostdata;
3765 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3766 res = (struct ipr_resource_entry *) sdev->hostdata;
3769 ata_port_disable(res->sata_port->ap);
3770 sdev->hostdata = NULL;
3772 res->sata_port = NULL;
3774 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3778 * ipr_slave_configure - Configure a SCSI device
3779 * @sdev: scsi device struct
3781 * This function configures the specified scsi device.
3786 static int ipr_slave_configure(struct scsi_device *sdev)
3788 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) sdev->host->hostdata;
3789 struct ipr_resource_entry *res;
3790 struct ata_port *ap = NULL;
3791 unsigned long lock_flags = 0;
3793 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3794 res = sdev->hostdata;
3796 if (ipr_is_af_dasd_device(res))
3797 sdev->type = TYPE_RAID;
3798 if (ipr_is_af_dasd_device(res) || ipr_is_ioa_resource(res)) {
3799 sdev->scsi_level = 4;
3800 sdev->no_uld_attach = 1;
3802 if (ipr_is_vset_device(res)) {
3803 blk_queue_rq_timeout(sdev->request_queue,
3804 IPR_VSET_RW_TIMEOUT);
3805 blk_queue_max_hw_sectors(sdev->request_queue, IPR_VSET_MAX_SECTORS);
3807 if (ipr_is_vset_device(res) || ipr_is_scsi_disk(res))
3808 sdev->allow_restart = 1;
3809 if (ipr_is_gata(res) && res->sata_port)
3810 ap = res->sata_port->ap;
3811 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3814 scsi_adjust_queue_depth(sdev, 0, IPR_MAX_CMD_PER_ATA_LUN);
3815 ata_sas_slave_configure(sdev, ap);
3817 scsi_adjust_queue_depth(sdev, 0, sdev->host->cmd_per_lun);
3820 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3825 * ipr_ata_slave_alloc - Prepare for commands to a SATA device
3826 * @sdev: scsi device struct
3828 * This function initializes an ATA port so that future commands
3829 * sent through queuecommand will work.
3834 static int ipr_ata_slave_alloc(struct scsi_device *sdev)
3836 struct ipr_sata_port *sata_port = NULL;
3840 if (sdev->sdev_target)
3841 sata_port = sdev->sdev_target->hostdata;
3843 rc = ata_sas_port_init(sata_port->ap);
3845 ipr_slave_destroy(sdev);
3852 * ipr_slave_alloc - Prepare for commands to a device.
3853 * @sdev: scsi device struct
3855 * This function saves a pointer to the resource entry
3856 * in the scsi device struct if the device exists. We
3857 * can then use this pointer in ipr_queuecommand when
3858 * handling new commands.
3861 * 0 on success / -ENXIO if device does not exist
3863 static int ipr_slave_alloc(struct scsi_device *sdev)
3865 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) sdev->host->hostdata;
3866 struct ipr_resource_entry *res;
3867 unsigned long lock_flags;
3870 sdev->hostdata = NULL;
3872 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3874 res = ipr_find_sdev(sdev);
3879 sdev->hostdata = res;
3880 if (!ipr_is_naca_model(res))
3881 res->needs_sync_complete = 1;
3883 if (ipr_is_gata(res)) {
3884 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3885 return ipr_ata_slave_alloc(sdev);
3889 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3895 * ipr_eh_host_reset - Reset the host adapter
3896 * @scsi_cmd: scsi command struct
3901 static int __ipr_eh_host_reset(struct scsi_cmnd * scsi_cmd)
3903 struct ipr_ioa_cfg *ioa_cfg;
3907 ioa_cfg = (struct ipr_ioa_cfg *) scsi_cmd->device->host->hostdata;
3909 dev_err(&ioa_cfg->pdev->dev,
3910 "Adapter being reset as a result of error recovery.\n");
3912 if (WAIT_FOR_DUMP == ioa_cfg->sdt_state)
3913 ioa_cfg->sdt_state = GET_DUMP;
3915 rc = ipr_reset_reload(ioa_cfg, IPR_SHUTDOWN_ABBREV);
3921 static int ipr_eh_host_reset(struct scsi_cmnd * cmd)
3925 spin_lock_irq(cmd->device->host->host_lock);
3926 rc = __ipr_eh_host_reset(cmd);
3927 spin_unlock_irq(cmd->device->host->host_lock);
3933 * ipr_device_reset - Reset the device
3934 * @ioa_cfg: ioa config struct
3935 * @res: resource entry struct
3937 * This function issues a device reset to the affected device.
3938 * If the device is a SCSI device, a LUN reset will be sent
3939 * to the device first. If that does not work, a target reset
3940 * will be sent. If the device is a SATA device, a PHY reset will
3944 * 0 on success / non-zero on failure
3946 static int ipr_device_reset(struct ipr_ioa_cfg *ioa_cfg,
3947 struct ipr_resource_entry *res)
3949 struct ipr_cmnd *ipr_cmd;
3950 struct ipr_ioarcb *ioarcb;
3951 struct ipr_cmd_pkt *cmd_pkt;
3952 struct ipr_ioarcb_ata_regs *regs;
3956 ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg);
3957 ioarcb = &ipr_cmd->ioarcb;
3958 cmd_pkt = &ioarcb->cmd_pkt;
3960 if (ipr_cmd->ioa_cfg->sis64) {
3961 regs = &ipr_cmd->i.ata_ioadl.regs;
3962 ioarcb->add_cmd_parms_offset = cpu_to_be16(sizeof(*ioarcb));
3964 regs = &ioarcb->u.add_data.u.regs;
3966 ioarcb->res_handle = res->cfgte.res_handle;
3967 cmd_pkt->request_type = IPR_RQTYPE_IOACMD;
3968 cmd_pkt->cdb[0] = IPR_RESET_DEVICE;
3969 if (ipr_is_gata(res)) {
3970 cmd_pkt->cdb[2] = IPR_ATA_PHY_RESET;
3971 ioarcb->add_cmd_parms_len = cpu_to_be16(sizeof(regs->flags));
3972 regs->flags |= IPR_ATA_FLAG_STATUS_ON_GOOD_COMPLETION;
3975 ipr_send_blocking_cmd(ipr_cmd, ipr_timeout, IPR_DEVICE_RESET_TIMEOUT);
3976 ioasc = be32_to_cpu(ipr_cmd->ioasa.ioasc);
3977 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
3978 if (ipr_is_gata(res) && res->sata_port && ioasc != IPR_IOASC_IOA_WAS_RESET)
3979 memcpy(&res->sata_port->ioasa, &ipr_cmd->ioasa.u.gata,
3980 sizeof(struct ipr_ioasa_gata));
3983 return (IPR_IOASC_SENSE_KEY(ioasc) ? -EIO : 0);
3987 * ipr_sata_reset - Reset the SATA port
3988 * @link: SATA link to reset
3989 * @classes: class of the attached device
3991 * This function issues a SATA phy reset to the affected ATA link.
3994 * 0 on success / non-zero on failure
3996 static int ipr_sata_reset(struct ata_link *link, unsigned int *classes,
3997 unsigned long deadline)
3999 struct ipr_sata_port *sata_port = link->ap->private_data;
4000 struct ipr_ioa_cfg *ioa_cfg = sata_port->ioa_cfg;
4001 struct ipr_resource_entry *res;
4002 unsigned long lock_flags = 0;
4006 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4007 while(ioa_cfg->in_reset_reload) {
4008 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4009 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
4010 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4013 res = sata_port->res;
4015 rc = ipr_device_reset(ioa_cfg, res);
4016 switch(res->cfgte.proto) {
4017 case IPR_PROTO_SATA:
4018 case IPR_PROTO_SAS_STP:
4019 *classes = ATA_DEV_ATA;
4021 case IPR_PROTO_SATA_ATAPI:
4022 case IPR_PROTO_SAS_STP_ATAPI:
4023 *classes = ATA_DEV_ATAPI;
4026 *classes = ATA_DEV_UNKNOWN;
4031 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4037 * ipr_eh_dev_reset - Reset the device
4038 * @scsi_cmd: scsi command struct
4040 * This function issues a device reset to the affected device.
4041 * A LUN reset will be sent to the device first. If that does
4042 * not work, a target reset will be sent.
4047 static int __ipr_eh_dev_reset(struct scsi_cmnd * scsi_cmd)
4049 struct ipr_cmnd *ipr_cmd;
4050 struct ipr_ioa_cfg *ioa_cfg;
4051 struct ipr_resource_entry *res;
4052 struct ata_port *ap;
4056 ioa_cfg = (struct ipr_ioa_cfg *) scsi_cmd->device->host->hostdata;
4057 res = scsi_cmd->device->hostdata;
4063 * If we are currently going through reset/reload, return failed. This will force the
4064 * mid-layer to call ipr_eh_host_reset, which will then go to sleep and wait for the
4067 if (ioa_cfg->in_reset_reload)
4069 if (ioa_cfg->ioa_is_dead)
4072 list_for_each_entry(ipr_cmd, &ioa_cfg->pending_q, queue) {
4073 if (ipr_cmd->ioarcb.res_handle == res->cfgte.res_handle) {
4074 if (ipr_cmd->scsi_cmd)
4075 ipr_cmd->done = ipr_scsi_eh_done;
4077 ipr_cmd->done = ipr_sata_eh_done;
4078 if (ipr_cmd->qc && !(ipr_cmd->qc->flags & ATA_QCFLAG_FAILED)) {
4079 ipr_cmd->qc->err_mask |= AC_ERR_TIMEOUT;
4080 ipr_cmd->qc->flags |= ATA_QCFLAG_FAILED;
4085 res->resetting_device = 1;
4086 scmd_printk(KERN_ERR, scsi_cmd, "Resetting device\n");
4088 if (ipr_is_gata(res) && res->sata_port) {
4089 ap = res->sata_port->ap;
4090 spin_unlock_irq(scsi_cmd->device->host->host_lock);
4091 ata_std_error_handler(ap);
4092 spin_lock_irq(scsi_cmd->device->host->host_lock);
4094 list_for_each_entry(ipr_cmd, &ioa_cfg->pending_q, queue) {
4095 if (ipr_cmd->ioarcb.res_handle == res->cfgte.res_handle) {
4101 rc = ipr_device_reset(ioa_cfg, res);
4102 res->resetting_device = 0;
4105 return (rc ? FAILED : SUCCESS);
4108 static int ipr_eh_dev_reset(struct scsi_cmnd * cmd)
4112 spin_lock_irq(cmd->device->host->host_lock);
4113 rc = __ipr_eh_dev_reset(cmd);
4114 spin_unlock_irq(cmd->device->host->host_lock);
4120 * ipr_bus_reset_done - Op done function for bus reset.
4121 * @ipr_cmd: ipr command struct
4123 * This function is the op done function for a bus reset
4128 static void ipr_bus_reset_done(struct ipr_cmnd *ipr_cmd)
4130 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
4131 struct ipr_resource_entry *res;
4134 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) {
4135 if (!memcmp(&res->cfgte.res_handle, &ipr_cmd->ioarcb.res_handle,
4136 sizeof(res->cfgte.res_handle))) {
4137 scsi_report_bus_reset(ioa_cfg->host, res->cfgte.res_addr.bus);
4143 * If abort has not completed, indicate the reset has, else call the
4144 * abort's done function to wake the sleeping eh thread
4146 if (ipr_cmd->sibling->sibling)
4147 ipr_cmd->sibling->sibling = NULL;
4149 ipr_cmd->sibling->done(ipr_cmd->sibling);
4151 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
4156 * ipr_abort_timeout - An abort task has timed out
4157 * @ipr_cmd: ipr command struct
4159 * This function handles when an abort task times out. If this
4160 * happens we issue a bus reset since we have resources tied
4161 * up that must be freed before returning to the midlayer.
4166 static void ipr_abort_timeout(struct ipr_cmnd *ipr_cmd)
4168 struct ipr_cmnd *reset_cmd;
4169 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
4170 struct ipr_cmd_pkt *cmd_pkt;
4171 unsigned long lock_flags = 0;
4174 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4175 if (ipr_cmd->completion.done || ioa_cfg->in_reset_reload) {
4176 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4180 sdev_printk(KERN_ERR, ipr_cmd->u.sdev, "Abort timed out. Resetting bus.\n");
4181 reset_cmd = ipr_get_free_ipr_cmnd(ioa_cfg);
4182 ipr_cmd->sibling = reset_cmd;
4183 reset_cmd->sibling = ipr_cmd;
4184 reset_cmd->ioarcb.res_handle = ipr_cmd->ioarcb.res_handle;
4185 cmd_pkt = &reset_cmd->ioarcb.cmd_pkt;
4186 cmd_pkt->request_type = IPR_RQTYPE_IOACMD;
4187 cmd_pkt->cdb[0] = IPR_RESET_DEVICE;
4188 cmd_pkt->cdb[2] = IPR_RESET_TYPE_SELECT | IPR_BUS_RESET;
4190 ipr_do_req(reset_cmd, ipr_bus_reset_done, ipr_timeout, IPR_DEVICE_RESET_TIMEOUT);
4191 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4196 * ipr_cancel_op - Cancel specified op
4197 * @scsi_cmd: scsi command struct
4199 * This function cancels specified op.
4204 static int ipr_cancel_op(struct scsi_cmnd * scsi_cmd)
4206 struct ipr_cmnd *ipr_cmd;
4207 struct ipr_ioa_cfg *ioa_cfg;
4208 struct ipr_resource_entry *res;
4209 struct ipr_cmd_pkt *cmd_pkt;
4214 ioa_cfg = (struct ipr_ioa_cfg *)scsi_cmd->device->host->hostdata;
4215 res = scsi_cmd->device->hostdata;
4217 /* If we are currently going through reset/reload, return failed.
4218 * This will force the mid-layer to call ipr_eh_host_reset,
4219 * which will then go to sleep and wait for the reset to complete
4221 if (ioa_cfg->in_reset_reload || ioa_cfg->ioa_is_dead)
4223 if (!res || !ipr_is_gscsi(res))
4226 list_for_each_entry(ipr_cmd, &ioa_cfg->pending_q, queue) {
4227 if (ipr_cmd->scsi_cmd == scsi_cmd) {
4228 ipr_cmd->done = ipr_scsi_eh_done;
4237 ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg);
4238 ipr_cmd->ioarcb.res_handle = res->cfgte.res_handle;
4239 cmd_pkt = &ipr_cmd->ioarcb.cmd_pkt;
4240 cmd_pkt->request_type = IPR_RQTYPE_IOACMD;
4241 cmd_pkt->cdb[0] = IPR_CANCEL_ALL_REQUESTS;
4242 ipr_cmd->u.sdev = scsi_cmd->device;
4244 scmd_printk(KERN_ERR, scsi_cmd, "Aborting command: %02X\n",
4246 ipr_send_blocking_cmd(ipr_cmd, ipr_abort_timeout, IPR_CANCEL_ALL_TIMEOUT);
4247 ioasc = be32_to_cpu(ipr_cmd->ioasa.ioasc);
4250 * If the abort task timed out and we sent a bus reset, we will get
4251 * one the following responses to the abort
4253 if (ioasc == IPR_IOASC_BUS_WAS_RESET || ioasc == IPR_IOASC_SYNC_REQUIRED) {
4258 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
4259 if (!ipr_is_naca_model(res))
4260 res->needs_sync_complete = 1;
4263 return (IPR_IOASC_SENSE_KEY(ioasc) ? FAILED : SUCCESS);
4267 * ipr_eh_abort - Abort a single op
4268 * @scsi_cmd: scsi command struct
4273 static int ipr_eh_abort(struct scsi_cmnd * scsi_cmd)
4275 unsigned long flags;
4280 spin_lock_irqsave(scsi_cmd->device->host->host_lock, flags);
4281 rc = ipr_cancel_op(scsi_cmd);
4282 spin_unlock_irqrestore(scsi_cmd->device->host->host_lock, flags);
4289 * ipr_handle_other_interrupt - Handle "other" interrupts
4290 * @ioa_cfg: ioa config struct
4291 * @int_reg: interrupt register
4294 * IRQ_NONE / IRQ_HANDLED
4296 static irqreturn_t ipr_handle_other_interrupt(struct ipr_ioa_cfg *ioa_cfg,
4297 volatile u32 int_reg)
4299 irqreturn_t rc = IRQ_HANDLED;
4301 if (int_reg & IPR_PCII_IOA_TRANS_TO_OPER) {
4302 /* Mask the interrupt */
4303 writel(IPR_PCII_IOA_TRANS_TO_OPER, ioa_cfg->regs.set_interrupt_mask_reg);
4305 /* Clear the interrupt */
4306 writel(IPR_PCII_IOA_TRANS_TO_OPER, ioa_cfg->regs.clr_interrupt_reg);
4307 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg);
4309 list_del(&ioa_cfg->reset_cmd->queue);
4310 del_timer(&ioa_cfg->reset_cmd->timer);
4311 ipr_reset_ioa_job(ioa_cfg->reset_cmd);
4313 if (int_reg & IPR_PCII_IOA_UNIT_CHECKED)
4314 ioa_cfg->ioa_unit_checked = 1;
4316 dev_err(&ioa_cfg->pdev->dev,
4317 "Permanent IOA failure. 0x%08X\n", int_reg);
4319 if (WAIT_FOR_DUMP == ioa_cfg->sdt_state)
4320 ioa_cfg->sdt_state = GET_DUMP;
4322 ipr_mask_and_clear_interrupts(ioa_cfg, ~0);
4323 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
4330 * ipr_isr_eh - Interrupt service routine error handler
4331 * @ioa_cfg: ioa config struct
4332 * @msg: message to log
4337 static void ipr_isr_eh(struct ipr_ioa_cfg *ioa_cfg, char *msg)
4339 ioa_cfg->errors_logged++;
4340 dev_err(&ioa_cfg->pdev->dev, "%s\n", msg);
4342 if (WAIT_FOR_DUMP == ioa_cfg->sdt_state)
4343 ioa_cfg->sdt_state = GET_DUMP;
4345 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
4349 * ipr_isr - Interrupt service routine
4351 * @devp: pointer to ioa config struct
4354 * IRQ_NONE / IRQ_HANDLED
4356 static irqreturn_t ipr_isr(int irq, void *devp)
4358 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)devp;
4359 unsigned long lock_flags = 0;
4360 volatile u32 int_reg, int_mask_reg;
4364 struct ipr_cmnd *ipr_cmd;
4365 irqreturn_t rc = IRQ_NONE;
4367 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4369 /* If interrupts are disabled, ignore the interrupt */
4370 if (!ioa_cfg->allow_interrupts) {
4371 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4375 int_mask_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg);
4376 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg) & ~int_mask_reg;
4378 /* If an interrupt on the adapter did not occur, ignore it */
4379 if (unlikely((int_reg & IPR_PCII_OPER_INTERRUPTS) == 0)) {
4380 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4387 while ((be32_to_cpu(*ioa_cfg->hrrq_curr) & IPR_HRRQ_TOGGLE_BIT) ==
4388 ioa_cfg->toggle_bit) {
4390 cmd_index = (be32_to_cpu(*ioa_cfg->hrrq_curr) &
4391 IPR_HRRQ_REQ_RESP_HANDLE_MASK) >> IPR_HRRQ_REQ_RESP_HANDLE_SHIFT;
4393 if (unlikely(cmd_index >= IPR_NUM_CMD_BLKS)) {
4394 ipr_isr_eh(ioa_cfg, "Invalid response handle from IOA");
4395 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4399 ipr_cmd = ioa_cfg->ipr_cmnd_list[cmd_index];
4401 ioasc = be32_to_cpu(ipr_cmd->ioasa.ioasc);
4403 ipr_trc_hook(ipr_cmd, IPR_TRACE_FINISH, ioasc);
4405 list_del(&ipr_cmd->queue);
4406 del_timer(&ipr_cmd->timer);
4407 ipr_cmd->done(ipr_cmd);
4411 if (ioa_cfg->hrrq_curr < ioa_cfg->hrrq_end) {
4412 ioa_cfg->hrrq_curr++;
4414 ioa_cfg->hrrq_curr = ioa_cfg->hrrq_start;
4415 ioa_cfg->toggle_bit ^= 1u;
4419 if (ipr_cmd != NULL) {
4420 /* Clear the PCI interrupt */
4422 writel(IPR_PCII_HRRQ_UPDATED, ioa_cfg->regs.clr_interrupt_reg);
4423 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg) & ~int_mask_reg;
4424 } while (int_reg & IPR_PCII_HRRQ_UPDATED &&
4425 num_hrrq++ < IPR_MAX_HRRQ_RETRIES);
4427 if (int_reg & IPR_PCII_HRRQ_UPDATED) {
4428 ipr_isr_eh(ioa_cfg, "Error clearing HRRQ");
4429 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4437 if (unlikely(rc == IRQ_NONE))
4438 rc = ipr_handle_other_interrupt(ioa_cfg, int_reg);
4440 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4445 * ipr_build_ioadl64 - Build a scatter/gather list and map the buffer
4446 * @ioa_cfg: ioa config struct
4447 * @ipr_cmd: ipr command struct
4450 * 0 on success / -1 on failure
4452 static int ipr_build_ioadl64(struct ipr_ioa_cfg *ioa_cfg,
4453 struct ipr_cmnd *ipr_cmd)
4456 struct scatterlist *sg;
4458 u32 ioadl_flags = 0;
4459 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd;
4460 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
4461 struct ipr_ioadl64_desc *ioadl64 = ipr_cmd->i.ioadl64;
4463 length = scsi_bufflen(scsi_cmd);
4467 nseg = scsi_dma_map(scsi_cmd);
4469 dev_err(&ioa_cfg->pdev->dev, "pci_map_sg failed!\n");
4473 ipr_cmd->dma_use_sg = nseg;
4475 if (scsi_cmd->sc_data_direction == DMA_TO_DEVICE) {
4476 ioadl_flags = IPR_IOADL_FLAGS_WRITE;
4477 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ;
4478 } else if (scsi_cmd->sc_data_direction == DMA_FROM_DEVICE)
4479 ioadl_flags = IPR_IOADL_FLAGS_READ;
4481 scsi_for_each_sg(scsi_cmd, sg, ipr_cmd->dma_use_sg, i) {
4482 ioadl64[i].flags = cpu_to_be32(ioadl_flags);
4483 ioadl64[i].data_len = cpu_to_be32(sg_dma_len(sg));
4484 ioadl64[i].address = cpu_to_be64(sg_dma_address(sg));
4487 ioadl64[i-1].flags |= cpu_to_be32(IPR_IOADL_FLAGS_LAST);
4492 * ipr_build_ioadl - Build a scatter/gather list and map the buffer
4493 * @ioa_cfg: ioa config struct
4494 * @ipr_cmd: ipr command struct
4497 * 0 on success / -1 on failure
4499 static int ipr_build_ioadl(struct ipr_ioa_cfg *ioa_cfg,
4500 struct ipr_cmnd *ipr_cmd)
4503 struct scatterlist *sg;
4505 u32 ioadl_flags = 0;
4506 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd;
4507 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
4508 struct ipr_ioadl_desc *ioadl = ipr_cmd->i.ioadl;
4510 length = scsi_bufflen(scsi_cmd);
4514 nseg = scsi_dma_map(scsi_cmd);
4516 dev_err(&ioa_cfg->pdev->dev, "pci_map_sg failed!\n");
4520 ipr_cmd->dma_use_sg = nseg;
4522 if (scsi_cmd->sc_data_direction == DMA_TO_DEVICE) {
4523 ioadl_flags = IPR_IOADL_FLAGS_WRITE;
4524 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ;
4525 ioarcb->data_transfer_length = cpu_to_be32(length);
4527 cpu_to_be32(sizeof(struct ipr_ioadl_desc) * ipr_cmd->dma_use_sg);
4528 } else if (scsi_cmd->sc_data_direction == DMA_FROM_DEVICE) {
4529 ioadl_flags = IPR_IOADL_FLAGS_READ;
4530 ioarcb->read_data_transfer_length = cpu_to_be32(length);
4531 ioarcb->read_ioadl_len =
4532 cpu_to_be32(sizeof(struct ipr_ioadl_desc) * ipr_cmd->dma_use_sg);
4535 if (ipr_cmd->dma_use_sg <= ARRAY_SIZE(ioarcb->u.add_data.u.ioadl)) {
4536 ioadl = ioarcb->u.add_data.u.ioadl;
4537 ioarcb->write_ioadl_addr = cpu_to_be32((ipr_cmd->dma_addr) +
4538 offsetof(struct ipr_ioarcb, u.add_data));
4539 ioarcb->read_ioadl_addr = ioarcb->write_ioadl_addr;
4542 scsi_for_each_sg(scsi_cmd, sg, ipr_cmd->dma_use_sg, i) {
4543 ioadl[i].flags_and_data_len =
4544 cpu_to_be32(ioadl_flags | sg_dma_len(sg));
4545 ioadl[i].address = cpu_to_be32(sg_dma_address(sg));
4548 ioadl[i-1].flags_and_data_len |= cpu_to_be32(IPR_IOADL_FLAGS_LAST);
4553 * ipr_get_task_attributes - Translate SPI Q-Tag to task attributes
4554 * @scsi_cmd: scsi command struct
4559 static u8 ipr_get_task_attributes(struct scsi_cmnd *scsi_cmd)
4562 u8 rc = IPR_FLAGS_LO_UNTAGGED_TASK;
4564 if (scsi_populate_tag_msg(scsi_cmd, tag)) {
4566 case MSG_SIMPLE_TAG:
4567 rc = IPR_FLAGS_LO_SIMPLE_TASK;
4570 rc = IPR_FLAGS_LO_HEAD_OF_Q_TASK;
4572 case MSG_ORDERED_TAG:
4573 rc = IPR_FLAGS_LO_ORDERED_TASK;
4582 * ipr_erp_done - Process completion of ERP for a device
4583 * @ipr_cmd: ipr command struct
4585 * This function copies the sense buffer into the scsi_cmd
4586 * struct and pushes the scsi_done function.
4591 static void ipr_erp_done(struct ipr_cmnd *ipr_cmd)
4593 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd;
4594 struct ipr_resource_entry *res = scsi_cmd->device->hostdata;
4595 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
4596 u32 ioasc = be32_to_cpu(ipr_cmd->ioasa.ioasc);
4598 if (IPR_IOASC_SENSE_KEY(ioasc) > 0) {
4599 scsi_cmd->result |= (DID_ERROR << 16);
4600 scmd_printk(KERN_ERR, scsi_cmd,
4601 "Request Sense failed with IOASC: 0x%08X\n", ioasc);
4603 memcpy(scsi_cmd->sense_buffer, ipr_cmd->sense_buffer,
4604 SCSI_SENSE_BUFFERSIZE);
4608 if (!ipr_is_naca_model(res))
4609 res->needs_sync_complete = 1;
4612 scsi_dma_unmap(ipr_cmd->scsi_cmd);
4613 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
4614 scsi_cmd->scsi_done(scsi_cmd);
4618 * ipr_reinit_ipr_cmnd_for_erp - Re-initialize a cmnd block to be used for ERP
4619 * @ipr_cmd: ipr command struct
4624 static void ipr_reinit_ipr_cmnd_for_erp(struct ipr_cmnd *ipr_cmd)
4626 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
4627 struct ipr_ioasa *ioasa = &ipr_cmd->ioasa;
4628 dma_addr_t dma_addr = ipr_cmd->dma_addr;
4630 memset(&ioarcb->cmd_pkt, 0, sizeof(struct ipr_cmd_pkt));
4631 ioarcb->data_transfer_length = 0;
4632 ioarcb->read_data_transfer_length = 0;
4633 ioarcb->ioadl_len = 0;
4634 ioarcb->read_ioadl_len = 0;
4636 ioasa->residual_data_len = 0;
4638 if (ipr_cmd->ioa_cfg->sis64)
4639 ioarcb->u.sis64_addr_data.data_ioadl_addr =
4640 cpu_to_be64(dma_addr + offsetof(struct ipr_cmnd, i.ioadl64));
4642 ioarcb->write_ioadl_addr =
4643 cpu_to_be32(dma_addr + offsetof(struct ipr_cmnd, i.ioadl));
4644 ioarcb->read_ioadl_addr = ioarcb->write_ioadl_addr;
4649 * ipr_erp_request_sense - Send request sense to a device
4650 * @ipr_cmd: ipr command struct
4652 * This function sends a request sense to a device as a result
4653 * of a check condition.
4658 static void ipr_erp_request_sense(struct ipr_cmnd *ipr_cmd)
4660 struct ipr_cmd_pkt *cmd_pkt = &ipr_cmd->ioarcb.cmd_pkt;
4661 u32 ioasc = be32_to_cpu(ipr_cmd->ioasa.ioasc);
4663 if (IPR_IOASC_SENSE_KEY(ioasc) > 0) {
4664 ipr_erp_done(ipr_cmd);
4668 ipr_reinit_ipr_cmnd_for_erp(ipr_cmd);
4670 cmd_pkt->request_type = IPR_RQTYPE_SCSICDB;
4671 cmd_pkt->cdb[0] = REQUEST_SENSE;
4672 cmd_pkt->cdb[4] = SCSI_SENSE_BUFFERSIZE;
4673 cmd_pkt->flags_hi |= IPR_FLAGS_HI_SYNC_OVERRIDE;
4674 cmd_pkt->flags_hi |= IPR_FLAGS_HI_NO_ULEN_CHK;
4675 cmd_pkt->timeout = cpu_to_be16(IPR_REQUEST_SENSE_TIMEOUT / HZ);
4677 ipr_init_ioadl(ipr_cmd, ipr_cmd->sense_buffer_dma,
4678 SCSI_SENSE_BUFFERSIZE, IPR_IOADL_FLAGS_READ_LAST);
4680 ipr_do_req(ipr_cmd, ipr_erp_done, ipr_timeout,
4681 IPR_REQUEST_SENSE_TIMEOUT * 2);
4685 * ipr_erp_cancel_all - Send cancel all to a device
4686 * @ipr_cmd: ipr command struct
4688 * This function sends a cancel all to a device to clear the
4689 * queue. If we are running TCQ on the device, QERR is set to 1,
4690 * which means all outstanding ops have been dropped on the floor.
4691 * Cancel all will return them to us.
4696 static void ipr_erp_cancel_all(struct ipr_cmnd *ipr_cmd)
4698 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd;
4699 struct ipr_resource_entry *res = scsi_cmd->device->hostdata;
4700 struct ipr_cmd_pkt *cmd_pkt;
4704 ipr_reinit_ipr_cmnd_for_erp(ipr_cmd);
4706 if (!scsi_get_tag_type(scsi_cmd->device)) {
4707 ipr_erp_request_sense(ipr_cmd);
4711 cmd_pkt = &ipr_cmd->ioarcb.cmd_pkt;
4712 cmd_pkt->request_type = IPR_RQTYPE_IOACMD;
4713 cmd_pkt->cdb[0] = IPR_CANCEL_ALL_REQUESTS;
4715 ipr_do_req(ipr_cmd, ipr_erp_request_sense, ipr_timeout,
4716 IPR_CANCEL_ALL_TIMEOUT);
4720 * ipr_dump_ioasa - Dump contents of IOASA
4721 * @ioa_cfg: ioa config struct
4722 * @ipr_cmd: ipr command struct
4723 * @res: resource entry struct
4725 * This function is invoked by the interrupt handler when ops
4726 * fail. It will log the IOASA if appropriate. Only called
4732 static void ipr_dump_ioasa(struct ipr_ioa_cfg *ioa_cfg,
4733 struct ipr_cmnd *ipr_cmd, struct ipr_resource_entry *res)
4737 u32 ioasc, fd_ioasc;
4738 struct ipr_ioasa *ioasa = &ipr_cmd->ioasa;
4739 __be32 *ioasa_data = (__be32 *)ioasa;
4742 ioasc = be32_to_cpu(ioasa->ioasc) & IPR_IOASC_IOASC_MASK;
4743 fd_ioasc = be32_to_cpu(ioasa->fd_ioasc) & IPR_IOASC_IOASC_MASK;
4748 if (ioa_cfg->log_level < IPR_DEFAULT_LOG_LEVEL)
4751 if (ioasc == IPR_IOASC_BUS_WAS_RESET && fd_ioasc)
4752 error_index = ipr_get_error(fd_ioasc);
4754 error_index = ipr_get_error(ioasc);
4756 if (ioa_cfg->log_level < IPR_MAX_LOG_LEVEL) {
4757 /* Don't log an error if the IOA already logged one */
4758 if (ioasa->ilid != 0)
4761 if (!ipr_is_gscsi(res))
4764 if (ipr_error_table[error_index].log_ioasa == 0)
4768 ipr_res_err(ioa_cfg, res, "%s\n", ipr_error_table[error_index].error);
4770 if (sizeof(struct ipr_ioasa) < be16_to_cpu(ioasa->ret_stat_len))
4771 data_len = sizeof(struct ipr_ioasa);
4773 data_len = be16_to_cpu(ioasa->ret_stat_len);
4775 ipr_err("IOASA Dump:\n");
4777 for (i = 0; i < data_len / 4; i += 4) {
4778 ipr_err("%08X: %08X %08X %08X %08X\n", i*4,
4779 be32_to_cpu(ioasa_data[i]),
4780 be32_to_cpu(ioasa_data[i+1]),
4781 be32_to_cpu(ioasa_data[i+2]),
4782 be32_to_cpu(ioasa_data[i+3]));
4787 * ipr_gen_sense - Generate SCSI sense data from an IOASA
4789 * @sense_buf: sense data buffer
4794 static void ipr_gen_sense(struct ipr_cmnd *ipr_cmd)
4797 u8 *sense_buf = ipr_cmd->scsi_cmd->sense_buffer;
4798 struct ipr_resource_entry *res = ipr_cmd->scsi_cmd->device->hostdata;
4799 struct ipr_ioasa *ioasa = &ipr_cmd->ioasa;
4800 u32 ioasc = be32_to_cpu(ioasa->ioasc);
4802 memset(sense_buf, 0, SCSI_SENSE_BUFFERSIZE);
4804 if (ioasc >= IPR_FIRST_DRIVER_IOASC)
4807 ipr_cmd->scsi_cmd->result = SAM_STAT_CHECK_CONDITION;
4809 if (ipr_is_vset_device(res) &&
4810 ioasc == IPR_IOASC_MED_DO_NOT_REALLOC &&
4811 ioasa->u.vset.failing_lba_hi != 0) {
4812 sense_buf[0] = 0x72;
4813 sense_buf[1] = IPR_IOASC_SENSE_KEY(ioasc);
4814 sense_buf[2] = IPR_IOASC_SENSE_CODE(ioasc);
4815 sense_buf[3] = IPR_IOASC_SENSE_QUAL(ioasc);
4819 sense_buf[9] = 0x0A;
4820 sense_buf[10] = 0x80;
4822 failing_lba = be32_to_cpu(ioasa->u.vset.failing_lba_hi);
4824 sense_buf[12] = (failing_lba & 0xff000000) >> 24;
4825 sense_buf[13] = (failing_lba & 0x00ff0000) >> 16;
4826 sense_buf[14] = (failing_lba & 0x0000ff00) >> 8;
4827 sense_buf[15] = failing_lba & 0x000000ff;
4829 failing_lba = be32_to_cpu(ioasa->u.vset.failing_lba_lo);
4831 sense_buf[16] = (failing_lba & 0xff000000) >> 24;
4832 sense_buf[17] = (failing_lba & 0x00ff0000) >> 16;
4833 sense_buf[18] = (failing_lba & 0x0000ff00) >> 8;
4834 sense_buf[19] = failing_lba & 0x000000ff;
4836 sense_buf[0] = 0x70;
4837 sense_buf[2] = IPR_IOASC_SENSE_KEY(ioasc);
4838 sense_buf[12] = IPR_IOASC_SENSE_CODE(ioasc);
4839 sense_buf[13] = IPR_IOASC_SENSE_QUAL(ioasc);
4841 /* Illegal request */
4842 if ((IPR_IOASC_SENSE_KEY(ioasc) == 0x05) &&
4843 (be32_to_cpu(ioasa->ioasc_specific) & IPR_FIELD_POINTER_VALID)) {
4844 sense_buf[7] = 10; /* additional length */
4846 /* IOARCB was in error */
4847 if (IPR_IOASC_SENSE_CODE(ioasc) == 0x24)
4848 sense_buf[15] = 0xC0;
4849 else /* Parameter data was invalid */
4850 sense_buf[15] = 0x80;
4853 ((IPR_FIELD_POINTER_MASK &
4854 be32_to_cpu(ioasa->ioasc_specific)) >> 8) & 0xff;
4856 (IPR_FIELD_POINTER_MASK &
4857 be32_to_cpu(ioasa->ioasc_specific)) & 0xff;
4859 if (ioasc == IPR_IOASC_MED_DO_NOT_REALLOC) {
4860 if (ipr_is_vset_device(res))
4861 failing_lba = be32_to_cpu(ioasa->u.vset.failing_lba_lo);
4863 failing_lba = be32_to_cpu(ioasa->u.dasd.failing_lba);
4865 sense_buf[0] |= 0x80; /* Or in the Valid bit */
4866 sense_buf[3] = (failing_lba & 0xff000000) >> 24;
4867 sense_buf[4] = (failing_lba & 0x00ff0000) >> 16;
4868 sense_buf[5] = (failing_lba & 0x0000ff00) >> 8;
4869 sense_buf[6] = failing_lba & 0x000000ff;
4872 sense_buf[7] = 6; /* additional length */
4878 * ipr_get_autosense - Copy autosense data to sense buffer
4879 * @ipr_cmd: ipr command struct
4881 * This function copies the autosense buffer to the buffer
4882 * in the scsi_cmd, if there is autosense available.
4885 * 1 if autosense was available / 0 if not
4887 static int ipr_get_autosense(struct ipr_cmnd *ipr_cmd)
4889 struct ipr_ioasa *ioasa = &ipr_cmd->ioasa;
4891 if ((be32_to_cpu(ioasa->ioasc_specific) & IPR_AUTOSENSE_VALID) == 0)
4894 memcpy(ipr_cmd->scsi_cmd->sense_buffer, ioasa->auto_sense.data,
4895 min_t(u16, be16_to_cpu(ioasa->auto_sense.auto_sense_len),
4896 SCSI_SENSE_BUFFERSIZE));
4901 * ipr_erp_start - Process an error response for a SCSI op
4902 * @ioa_cfg: ioa config struct
4903 * @ipr_cmd: ipr command struct
4905 * This function determines whether or not to initiate ERP
4906 * on the affected device.
4911 static void ipr_erp_start(struct ipr_ioa_cfg *ioa_cfg,
4912 struct ipr_cmnd *ipr_cmd)
4914 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd;
4915 struct ipr_resource_entry *res = scsi_cmd->device->hostdata;
4916 u32 ioasc = be32_to_cpu(ipr_cmd->ioasa.ioasc);
4917 u32 masked_ioasc = ioasc & IPR_IOASC_IOASC_MASK;
4920 ipr_scsi_eh_done(ipr_cmd);
4924 if (!ipr_is_gscsi(res) && masked_ioasc != IPR_IOASC_HW_DEV_BUS_STATUS)
4925 ipr_gen_sense(ipr_cmd);
4927 ipr_dump_ioasa(ioa_cfg, ipr_cmd, res);
4929 switch (masked_ioasc) {
4930 case IPR_IOASC_ABORTED_CMD_TERM_BY_HOST:
4931 if (ipr_is_naca_model(res))
4932 scsi_cmd->result |= (DID_ABORT << 16);
4934 scsi_cmd->result |= (DID_IMM_RETRY << 16);
4936 case IPR_IOASC_IR_RESOURCE_HANDLE:
4937 case IPR_IOASC_IR_NO_CMDS_TO_2ND_IOA:
4938 scsi_cmd->result |= (DID_NO_CONNECT << 16);
4940 case IPR_IOASC_HW_SEL_TIMEOUT:
4941 scsi_cmd->result |= (DID_NO_CONNECT << 16);
4942 if (!ipr_is_naca_model(res))
4943 res->needs_sync_complete = 1;
4945 case IPR_IOASC_SYNC_REQUIRED:
4947 res->needs_sync_complete = 1;
4948 scsi_cmd->result |= (DID_IMM_RETRY << 16);
4950 case IPR_IOASC_MED_DO_NOT_REALLOC: /* prevent retries */
4951 case IPR_IOASA_IR_DUAL_IOA_DISABLED:
4952 scsi_cmd->result |= (DID_PASSTHROUGH << 16);
4954 case IPR_IOASC_BUS_WAS_RESET:
4955 case IPR_IOASC_BUS_WAS_RESET_BY_OTHER:
4957 * Report the bus reset and ask for a retry. The device
4958 * will give CC/UA the next command.
4960 if (!res->resetting_device)
4961 scsi_report_bus_reset(ioa_cfg->host, scsi_cmd->device->channel);
4962 scsi_cmd->result |= (DID_ERROR << 16);
4963 if (!ipr_is_naca_model(res))
4964 res->needs_sync_complete = 1;
4966 case IPR_IOASC_HW_DEV_BUS_STATUS:
4967 scsi_cmd->result |= IPR_IOASC_SENSE_STATUS(ioasc);
4968 if (IPR_IOASC_SENSE_STATUS(ioasc) == SAM_STAT_CHECK_CONDITION) {
4969 if (!ipr_get_autosense(ipr_cmd)) {
4970 if (!ipr_is_naca_model(res)) {
4971 ipr_erp_cancel_all(ipr_cmd);
4976 if (!ipr_is_naca_model(res))
4977 res->needs_sync_complete = 1;
4979 case IPR_IOASC_NR_INIT_CMD_REQUIRED:
4982 if (IPR_IOASC_SENSE_KEY(ioasc) > RECOVERED_ERROR)
4983 scsi_cmd->result |= (DID_ERROR << 16);
4984 if (!ipr_is_vset_device(res) && !ipr_is_naca_model(res))
4985 res->needs_sync_complete = 1;
4989 scsi_dma_unmap(ipr_cmd->scsi_cmd);
4990 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
4991 scsi_cmd->scsi_done(scsi_cmd);
4995 * ipr_scsi_done - mid-layer done function
4996 * @ipr_cmd: ipr command struct
4998 * This function is invoked by the interrupt handler for
4999 * ops generated by the SCSI mid-layer
5004 static void ipr_scsi_done(struct ipr_cmnd *ipr_cmd)
5006 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
5007 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd;
5008 u32 ioasc = be32_to_cpu(ipr_cmd->ioasa.ioasc);
5010 scsi_set_resid(scsi_cmd, be32_to_cpu(ipr_cmd->ioasa.residual_data_len));
5012 if (likely(IPR_IOASC_SENSE_KEY(ioasc) == 0)) {
5013 scsi_dma_unmap(ipr_cmd->scsi_cmd);
5014 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
5015 scsi_cmd->scsi_done(scsi_cmd);
5017 ipr_erp_start(ioa_cfg, ipr_cmd);
5021 * ipr_queuecommand - Queue a mid-layer request
5022 * @scsi_cmd: scsi command struct
5023 * @done: done function
5025 * This function queues a request generated by the mid-layer.
5029 * SCSI_MLQUEUE_DEVICE_BUSY if device is busy
5030 * SCSI_MLQUEUE_HOST_BUSY if host is busy
5032 static int ipr_queuecommand(struct scsi_cmnd *scsi_cmd,
5033 void (*done) (struct scsi_cmnd *))
5035 struct ipr_ioa_cfg *ioa_cfg;
5036 struct ipr_resource_entry *res;
5037 struct ipr_ioarcb *ioarcb;
5038 struct ipr_cmnd *ipr_cmd;
5041 scsi_cmd->scsi_done = done;
5042 ioa_cfg = (struct ipr_ioa_cfg *)scsi_cmd->device->host->hostdata;
5043 res = scsi_cmd->device->hostdata;
5044 scsi_cmd->result = (DID_OK << 16);
5047 * We are currently blocking all devices due to a host reset
5048 * We have told the host to stop giving us new requests, but
5049 * ERP ops don't count. FIXME
5051 if (unlikely(!ioa_cfg->allow_cmds && !ioa_cfg->ioa_is_dead))
5052 return SCSI_MLQUEUE_HOST_BUSY;
5055 * FIXME - Create scsi_set_host_offline interface
5056 * and the ioa_is_dead check can be removed
5058 if (unlikely(ioa_cfg->ioa_is_dead || !res)) {
5059 memset(scsi_cmd->sense_buffer, 0, SCSI_SENSE_BUFFERSIZE);
5060 scsi_cmd->result = (DID_NO_CONNECT << 16);
5061 scsi_cmd->scsi_done(scsi_cmd);
5065 if (ipr_is_gata(res) && res->sata_port)
5066 return ata_sas_queuecmd(scsi_cmd, done, res->sata_port->ap);
5068 ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg);
5069 ioarcb = &ipr_cmd->ioarcb;
5070 list_add_tail(&ipr_cmd->queue, &ioa_cfg->pending_q);
5072 memcpy(ioarcb->cmd_pkt.cdb, scsi_cmd->cmnd, scsi_cmd->cmd_len);
5073 ipr_cmd->scsi_cmd = scsi_cmd;
5074 ioarcb->res_handle = res->cfgte.res_handle;
5075 ipr_cmd->done = ipr_scsi_done;
5076 ipr_trc_hook(ipr_cmd, IPR_TRACE_START, IPR_GET_PHYS_LOC(res->cfgte.res_addr));
5078 if (ipr_is_gscsi(res) || ipr_is_vset_device(res)) {
5079 if (scsi_cmd->underflow == 0)
5080 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_NO_ULEN_CHK;
5082 if (res->needs_sync_complete) {
5083 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_SYNC_COMPLETE;
5084 res->needs_sync_complete = 0;
5087 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_NO_LINK_DESC;
5088 ioarcb->cmd_pkt.flags_lo |= IPR_FLAGS_LO_DELAY_AFTER_RST;
5089 ioarcb->cmd_pkt.flags_lo |= IPR_FLAGS_LO_ALIGNED_BFR;
5090 ioarcb->cmd_pkt.flags_lo |= ipr_get_task_attributes(scsi_cmd);
5093 if (scsi_cmd->cmnd[0] >= 0xC0 &&
5094 (!ipr_is_gscsi(res) || scsi_cmd->cmnd[0] == IPR_QUERY_RSRC_STATE))
5095 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_IOACMD;
5097 if (likely(rc == 0)) {
5099 rc = ipr_build_ioadl64(ioa_cfg, ipr_cmd);
5101 rc = ipr_build_ioadl(ioa_cfg, ipr_cmd);
5104 if (likely(rc == 0)) {
5106 ipr_send_command(ipr_cmd);
5108 list_move_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
5109 return SCSI_MLQUEUE_HOST_BUSY;
5116 * ipr_ioctl - IOCTL handler
5117 * @sdev: scsi device struct
5122 * 0 on success / other on failure
5124 static int ipr_ioctl(struct scsi_device *sdev, int cmd, void __user *arg)
5126 struct ipr_resource_entry *res;
5128 res = (struct ipr_resource_entry *)sdev->hostdata;
5129 if (res && ipr_is_gata(res)) {
5130 if (cmd == HDIO_GET_IDENTITY)
5132 return ata_sas_scsi_ioctl(res->sata_port->ap, sdev, cmd, arg);
5139 * ipr_info - Get information about the card/driver
5140 * @scsi_host: scsi host struct
5143 * pointer to buffer with description string
5145 static const char * ipr_ioa_info(struct Scsi_Host *host)
5147 static char buffer[512];
5148 struct ipr_ioa_cfg *ioa_cfg;
5149 unsigned long lock_flags = 0;
5151 ioa_cfg = (struct ipr_ioa_cfg *) host->hostdata;
5153 spin_lock_irqsave(host->host_lock, lock_flags);
5154 sprintf(buffer, "IBM %X Storage Adapter", ioa_cfg->type);
5155 spin_unlock_irqrestore(host->host_lock, lock_flags);
5160 static struct scsi_host_template driver_template = {
5161 .module = THIS_MODULE,
5163 .info = ipr_ioa_info,
5165 .queuecommand = ipr_queuecommand,
5166 .eh_abort_handler = ipr_eh_abort,
5167 .eh_device_reset_handler = ipr_eh_dev_reset,
5168 .eh_host_reset_handler = ipr_eh_host_reset,
5169 .slave_alloc = ipr_slave_alloc,
5170 .slave_configure = ipr_slave_configure,
5171 .slave_destroy = ipr_slave_destroy,
5172 .target_alloc = ipr_target_alloc,
5173 .target_destroy = ipr_target_destroy,
5174 .change_queue_depth = ipr_change_queue_depth,
5175 .change_queue_type = ipr_change_queue_type,
5176 .bios_param = ipr_biosparam,
5177 .can_queue = IPR_MAX_COMMANDS,
5179 .sg_tablesize = IPR_MAX_SGLIST,
5180 .max_sectors = IPR_IOA_MAX_SECTORS,
5181 .cmd_per_lun = IPR_MAX_CMD_PER_LUN,
5182 .use_clustering = ENABLE_CLUSTERING,
5183 .shost_attrs = ipr_ioa_attrs,
5184 .sdev_attrs = ipr_dev_attrs,
5185 .proc_name = IPR_NAME
5189 * ipr_ata_phy_reset - libata phy_reset handler
5190 * @ap: ata port to reset
5193 static void ipr_ata_phy_reset(struct ata_port *ap)
5195 unsigned long flags;
5196 struct ipr_sata_port *sata_port = ap->private_data;
5197 struct ipr_resource_entry *res = sata_port->res;
5198 struct ipr_ioa_cfg *ioa_cfg = sata_port->ioa_cfg;
5202 spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
5203 while(ioa_cfg->in_reset_reload) {
5204 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
5205 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
5206 spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
5209 if (!ioa_cfg->allow_cmds)
5212 rc = ipr_device_reset(ioa_cfg, res);
5215 ata_port_disable(ap);
5219 switch(res->cfgte.proto) {
5220 case IPR_PROTO_SATA:
5221 case IPR_PROTO_SAS_STP:
5222 ap->link.device[0].class = ATA_DEV_ATA;
5224 case IPR_PROTO_SATA_ATAPI:
5225 case IPR_PROTO_SAS_STP_ATAPI:
5226 ap->link.device[0].class = ATA_DEV_ATAPI;
5229 ap->link.device[0].class = ATA_DEV_UNKNOWN;
5230 ata_port_disable(ap);
5235 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
5240 * ipr_ata_post_internal - Cleanup after an internal command
5241 * @qc: ATA queued command
5246 static void ipr_ata_post_internal(struct ata_queued_cmd *qc)
5248 struct ipr_sata_port *sata_port = qc->ap->private_data;
5249 struct ipr_ioa_cfg *ioa_cfg = sata_port->ioa_cfg;
5250 struct ipr_cmnd *ipr_cmd;
5251 unsigned long flags;
5253 spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
5254 while(ioa_cfg->in_reset_reload) {
5255 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
5256 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
5257 spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
5260 list_for_each_entry(ipr_cmd, &ioa_cfg->pending_q, queue) {
5261 if (ipr_cmd->qc == qc) {
5262 ipr_device_reset(ioa_cfg, sata_port->res);
5266 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
5270 * ipr_copy_sata_tf - Copy a SATA taskfile to an IOA data structure
5271 * @regs: destination
5272 * @tf: source ATA taskfile
5277 static void ipr_copy_sata_tf(struct ipr_ioarcb_ata_regs *regs,
5278 struct ata_taskfile *tf)
5280 regs->feature = tf->feature;
5281 regs->nsect = tf->nsect;
5282 regs->lbal = tf->lbal;
5283 regs->lbam = tf->lbam;
5284 regs->lbah = tf->lbah;
5285 regs->device = tf->device;
5286 regs->command = tf->command;
5287 regs->hob_feature = tf->hob_feature;
5288 regs->hob_nsect = tf->hob_nsect;
5289 regs->hob_lbal = tf->hob_lbal;
5290 regs->hob_lbam = tf->hob_lbam;
5291 regs->hob_lbah = tf->hob_lbah;
5292 regs->ctl = tf->ctl;
5296 * ipr_sata_done - done function for SATA commands
5297 * @ipr_cmd: ipr command struct
5299 * This function is invoked by the interrupt handler for
5300 * ops generated by the SCSI mid-layer to SATA devices
5305 static void ipr_sata_done(struct ipr_cmnd *ipr_cmd)
5307 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
5308 struct ata_queued_cmd *qc = ipr_cmd->qc;
5309 struct ipr_sata_port *sata_port = qc->ap->private_data;
5310 struct ipr_resource_entry *res = sata_port->res;
5311 u32 ioasc = be32_to_cpu(ipr_cmd->ioasa.ioasc);
5313 memcpy(&sata_port->ioasa, &ipr_cmd->ioasa.u.gata,
5314 sizeof(struct ipr_ioasa_gata));
5315 ipr_dump_ioasa(ioa_cfg, ipr_cmd, res);
5317 if (be32_to_cpu(ipr_cmd->ioasa.ioasc_specific) & IPR_ATA_DEVICE_WAS_RESET)
5318 scsi_report_device_reset(ioa_cfg->host, res->cfgte.res_addr.bus,
5319 res->cfgte.res_addr.target);
5321 if (IPR_IOASC_SENSE_KEY(ioasc) > RECOVERED_ERROR)
5322 qc->err_mask |= __ac_err_mask(ipr_cmd->ioasa.u.gata.status);
5324 qc->err_mask |= ac_err_mask(ipr_cmd->ioasa.u.gata.status);
5325 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
5326 ata_qc_complete(qc);
5330 * ipr_build_ata_ioadl64 - Build an ATA scatter/gather list
5331 * @ipr_cmd: ipr command struct
5332 * @qc: ATA queued command
5335 static void ipr_build_ata_ioadl64(struct ipr_cmnd *ipr_cmd,
5336 struct ata_queued_cmd *qc)
5338 u32 ioadl_flags = 0;
5339 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
5340 struct ipr_ioadl64_desc *ioadl64 = ipr_cmd->i.ioadl64;
5341 struct ipr_ioadl64_desc *last_ioadl64 = NULL;
5342 int len = qc->nbytes;
5343 struct scatterlist *sg;
5345 dma_addr_t dma_addr = ipr_cmd->dma_addr;
5350 if (qc->dma_dir == DMA_TO_DEVICE) {
5351 ioadl_flags = IPR_IOADL_FLAGS_WRITE;
5352 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ;
5353 } else if (qc->dma_dir == DMA_FROM_DEVICE)
5354 ioadl_flags = IPR_IOADL_FLAGS_READ;
5356 ioarcb->data_transfer_length = cpu_to_be32(len);
5358 cpu_to_be32(sizeof(struct ipr_ioadl64_desc) * ipr_cmd->dma_use_sg);
5359 ioarcb->u.sis64_addr_data.data_ioadl_addr =
5360 cpu_to_be64(dma_addr + offsetof(struct ipr_cmnd, i.ata_ioadl));
5362 for_each_sg(qc->sg, sg, qc->n_elem, si) {
5363 ioadl64->flags = cpu_to_be32(ioadl_flags);
5364 ioadl64->data_len = cpu_to_be32(sg_dma_len(sg));
5365 ioadl64->address = cpu_to_be64(sg_dma_address(sg));
5367 last_ioadl64 = ioadl64;
5371 if (likely(last_ioadl64))
5372 last_ioadl64->flags |= cpu_to_be32(IPR_IOADL_FLAGS_LAST);
5376 * ipr_build_ata_ioadl - Build an ATA scatter/gather list
5377 * @ipr_cmd: ipr command struct
5378 * @qc: ATA queued command
5381 static void ipr_build_ata_ioadl(struct ipr_cmnd *ipr_cmd,
5382 struct ata_queued_cmd *qc)
5384 u32 ioadl_flags = 0;
5385 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
5386 struct ipr_ioadl_desc *ioadl = ipr_cmd->i.ioadl;
5387 struct ipr_ioadl_desc *last_ioadl = NULL;
5388 int len = qc->nbytes;
5389 struct scatterlist *sg;
5395 if (qc->dma_dir == DMA_TO_DEVICE) {
5396 ioadl_flags = IPR_IOADL_FLAGS_WRITE;
5397 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ;
5398 ioarcb->data_transfer_length = cpu_to_be32(len);
5400 cpu_to_be32(sizeof(struct ipr_ioadl_desc) * ipr_cmd->dma_use_sg);
5401 } else if (qc->dma_dir == DMA_FROM_DEVICE) {
5402 ioadl_flags = IPR_IOADL_FLAGS_READ;
5403 ioarcb->read_data_transfer_length = cpu_to_be32(len);
5404 ioarcb->read_ioadl_len =
5405 cpu_to_be32(sizeof(struct ipr_ioadl_desc) * ipr_cmd->dma_use_sg);
5408 for_each_sg(qc->sg, sg, qc->n_elem, si) {
5409 ioadl->flags_and_data_len = cpu_to_be32(ioadl_flags | sg_dma_len(sg));
5410 ioadl->address = cpu_to_be32(sg_dma_address(sg));
5416 if (likely(last_ioadl))
5417 last_ioadl->flags_and_data_len |= cpu_to_be32(IPR_IOADL_FLAGS_LAST);
5421 * ipr_qc_issue - Issue a SATA qc to a device
5422 * @qc: queued command
5427 static unsigned int ipr_qc_issue(struct ata_queued_cmd *qc)
5429 struct ata_port *ap = qc->ap;
5430 struct ipr_sata_port *sata_port = ap->private_data;
5431 struct ipr_resource_entry *res = sata_port->res;
5432 struct ipr_ioa_cfg *ioa_cfg = sata_port->ioa_cfg;
5433 struct ipr_cmnd *ipr_cmd;
5434 struct ipr_ioarcb *ioarcb;
5435 struct ipr_ioarcb_ata_regs *regs;
5437 if (unlikely(!ioa_cfg->allow_cmds || ioa_cfg->ioa_is_dead))
5438 return AC_ERR_SYSTEM;
5440 ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg);
5441 ioarcb = &ipr_cmd->ioarcb;
5443 if (ioa_cfg->sis64) {
5444 regs = &ipr_cmd->i.ata_ioadl.regs;
5445 ioarcb->add_cmd_parms_offset = cpu_to_be16(sizeof(*ioarcb));
5447 regs = &ioarcb->u.add_data.u.regs;
5449 memset(regs, 0, sizeof(*regs));
5450 ioarcb->add_cmd_parms_len = cpu_to_be16(sizeof(*regs));
5452 list_add_tail(&ipr_cmd->queue, &ioa_cfg->pending_q);
5454 ipr_cmd->done = ipr_sata_done;
5455 ipr_cmd->ioarcb.res_handle = res->cfgte.res_handle;
5456 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_ATA_PASSTHRU;
5457 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_NO_LINK_DESC;
5458 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_NO_ULEN_CHK;
5459 ipr_cmd->dma_use_sg = qc->n_elem;
5462 ipr_build_ata_ioadl64(ipr_cmd, qc);
5464 ipr_build_ata_ioadl(ipr_cmd, qc);
5466 regs->flags |= IPR_ATA_FLAG_STATUS_ON_GOOD_COMPLETION;
5467 ipr_copy_sata_tf(regs, &qc->tf);
5468 memcpy(ioarcb->cmd_pkt.cdb, qc->cdb, IPR_MAX_CDB_LEN);
5469 ipr_trc_hook(ipr_cmd, IPR_TRACE_START, IPR_GET_PHYS_LOC(res->cfgte.res_addr));
5471 switch (qc->tf.protocol) {
5472 case ATA_PROT_NODATA:
5477 regs->flags |= IPR_ATA_FLAG_XFER_TYPE_DMA;
5480 case ATAPI_PROT_PIO:
5481 case ATAPI_PROT_NODATA:
5482 regs->flags |= IPR_ATA_FLAG_PACKET_CMD;
5485 case ATAPI_PROT_DMA:
5486 regs->flags |= IPR_ATA_FLAG_PACKET_CMD;
5487 regs->flags |= IPR_ATA_FLAG_XFER_TYPE_DMA;
5492 return AC_ERR_INVALID;
5497 ipr_send_command(ipr_cmd);
5503 * ipr_qc_fill_rtf - Read result TF
5504 * @qc: ATA queued command
5509 static bool ipr_qc_fill_rtf(struct ata_queued_cmd *qc)
5511 struct ipr_sata_port *sata_port = qc->ap->private_data;
5512 struct ipr_ioasa_gata *g = &sata_port->ioasa;
5513 struct ata_taskfile *tf = &qc->result_tf;
5515 tf->feature = g->error;
5516 tf->nsect = g->nsect;
5520 tf->device = g->device;
5521 tf->command = g->status;
5522 tf->hob_nsect = g->hob_nsect;
5523 tf->hob_lbal = g->hob_lbal;
5524 tf->hob_lbam = g->hob_lbam;
5525 tf->hob_lbah = g->hob_lbah;
5526 tf->ctl = g->alt_status;
5531 static struct ata_port_operations ipr_sata_ops = {
5532 .phy_reset = ipr_ata_phy_reset,
5533 .hardreset = ipr_sata_reset,
5534 .post_internal_cmd = ipr_ata_post_internal,
5535 .qc_prep = ata_noop_qc_prep,
5536 .qc_issue = ipr_qc_issue,
5537 .qc_fill_rtf = ipr_qc_fill_rtf,
5538 .port_start = ata_sas_port_start,
5539 .port_stop = ata_sas_port_stop
5542 static struct ata_port_info sata_port_info = {
5543 .flags = ATA_FLAG_SATA | ATA_FLAG_NO_LEGACY | ATA_FLAG_SATA_RESET |
5544 ATA_FLAG_MMIO | ATA_FLAG_PIO_DMA,
5545 .pio_mask = 0x10, /* pio4 */
5547 .udma_mask = 0x7f, /* udma0-6 */
5548 .port_ops = &ipr_sata_ops
5551 #ifdef CONFIG_PPC_PSERIES
5552 static const u16 ipr_blocked_processors[] = {
5564 * ipr_invalid_adapter - Determine if this adapter is supported on this hardware
5565 * @ioa_cfg: ioa cfg struct
5567 * Adapters that use Gemstone revision < 3.1 do not work reliably on
5568 * certain pSeries hardware. This function determines if the given
5569 * adapter is in one of these confgurations or not.
5572 * 1 if adapter is not supported / 0 if adapter is supported
5574 static int ipr_invalid_adapter(struct ipr_ioa_cfg *ioa_cfg)
5578 if ((ioa_cfg->type == 0x5702) && (ioa_cfg->pdev->revision < 4)) {
5579 for (i = 0; i < ARRAY_SIZE(ipr_blocked_processors); i++){
5580 if (__is_processor(ipr_blocked_processors[i]))
5587 #define ipr_invalid_adapter(ioa_cfg) 0
5591 * ipr_ioa_bringdown_done - IOA bring down completion.
5592 * @ipr_cmd: ipr command struct
5594 * This function processes the completion of an adapter bring down.
5595 * It wakes any reset sleepers.
5600 static int ipr_ioa_bringdown_done(struct ipr_cmnd *ipr_cmd)
5602 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
5605 ioa_cfg->in_reset_reload = 0;
5606 ioa_cfg->reset_retries = 0;
5607 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
5608 wake_up_all(&ioa_cfg->reset_wait_q);
5610 spin_unlock_irq(ioa_cfg->host->host_lock);
5611 scsi_unblock_requests(ioa_cfg->host);
5612 spin_lock_irq(ioa_cfg->host->host_lock);
5615 return IPR_RC_JOB_RETURN;
5619 * ipr_ioa_reset_done - IOA reset completion.
5620 * @ipr_cmd: ipr command struct
5622 * This function processes the completion of an adapter reset.
5623 * It schedules any necessary mid-layer add/removes and
5624 * wakes any reset sleepers.
5629 static int ipr_ioa_reset_done(struct ipr_cmnd *ipr_cmd)
5631 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
5632 struct ipr_resource_entry *res;
5633 struct ipr_hostrcb *hostrcb, *temp;
5637 ioa_cfg->in_reset_reload = 0;
5638 ioa_cfg->allow_cmds = 1;
5639 ioa_cfg->reset_cmd = NULL;
5640 ioa_cfg->doorbell |= IPR_RUNTIME_RESET;
5642 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) {
5643 if (ioa_cfg->allow_ml_add_del && (res->add_to_ml || res->del_from_ml)) {
5648 schedule_work(&ioa_cfg->work_q);
5650 list_for_each_entry_safe(hostrcb, temp, &ioa_cfg->hostrcb_free_q, queue) {
5651 list_del(&hostrcb->queue);
5652 if (i++ < IPR_NUM_LOG_HCAMS)
5653 ipr_send_hcam(ioa_cfg, IPR_HCAM_CDB_OP_CODE_LOG_DATA, hostrcb);
5655 ipr_send_hcam(ioa_cfg, IPR_HCAM_CDB_OP_CODE_CONFIG_CHANGE, hostrcb);
5658 scsi_report_bus_reset(ioa_cfg->host, IPR_VSET_BUS);
5659 dev_info(&ioa_cfg->pdev->dev, "IOA initialized.\n");
5661 ioa_cfg->reset_retries = 0;
5662 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
5663 wake_up_all(&ioa_cfg->reset_wait_q);
5665 spin_unlock(ioa_cfg->host->host_lock);
5666 scsi_unblock_requests(ioa_cfg->host);
5667 spin_lock(ioa_cfg->host->host_lock);
5669 if (!ioa_cfg->allow_cmds)
5670 scsi_block_requests(ioa_cfg->host);
5673 return IPR_RC_JOB_RETURN;
5677 * ipr_set_sup_dev_dflt - Initialize a Set Supported Device buffer
5678 * @supported_dev: supported device struct
5679 * @vpids: vendor product id struct
5684 static void ipr_set_sup_dev_dflt(struct ipr_supported_device *supported_dev,
5685 struct ipr_std_inq_vpids *vpids)
5687 memset(supported_dev, 0, sizeof(struct ipr_supported_device));
5688 memcpy(&supported_dev->vpids, vpids, sizeof(struct ipr_std_inq_vpids));
5689 supported_dev->num_records = 1;
5690 supported_dev->data_length =
5691 cpu_to_be16(sizeof(struct ipr_supported_device));
5692 supported_dev->reserved = 0;
5696 * ipr_set_supported_devs - Send Set Supported Devices for a device
5697 * @ipr_cmd: ipr command struct
5699 * This function sends a Set Supported Devices to the adapter
5702 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
5704 static int ipr_set_supported_devs(struct ipr_cmnd *ipr_cmd)
5706 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
5707 struct ipr_supported_device *supp_dev = &ioa_cfg->vpd_cbs->supp_dev;
5708 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
5709 struct ipr_resource_entry *res = ipr_cmd->u.res;
5711 ipr_cmd->job_step = ipr_ioa_reset_done;
5713 list_for_each_entry_continue(res, &ioa_cfg->used_res_q, queue) {
5714 if (!ipr_is_scsi_disk(res))
5717 ipr_cmd->u.res = res;
5718 ipr_set_sup_dev_dflt(supp_dev, &res->cfgte.std_inq_data.vpids);
5720 ioarcb->res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE);
5721 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ;
5722 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_IOACMD;
5724 ioarcb->cmd_pkt.cdb[0] = IPR_SET_SUPPORTED_DEVICES;
5725 ioarcb->cmd_pkt.cdb[7] = (sizeof(struct ipr_supported_device) >> 8) & 0xff;
5726 ioarcb->cmd_pkt.cdb[8] = sizeof(struct ipr_supported_device) & 0xff;
5728 ipr_init_ioadl(ipr_cmd,
5729 ioa_cfg->vpd_cbs_dma +
5730 offsetof(struct ipr_misc_cbs, supp_dev),
5731 sizeof(struct ipr_supported_device),
5732 IPR_IOADL_FLAGS_WRITE_LAST);
5734 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout,
5735 IPR_SET_SUP_DEVICE_TIMEOUT);
5737 ipr_cmd->job_step = ipr_set_supported_devs;
5738 return IPR_RC_JOB_RETURN;
5741 return IPR_RC_JOB_CONTINUE;
5745 * ipr_setup_write_cache - Disable write cache if needed
5746 * @ipr_cmd: ipr command struct
5748 * This function sets up adapters write cache to desired setting
5751 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
5753 static int ipr_setup_write_cache(struct ipr_cmnd *ipr_cmd)
5755 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
5757 ipr_cmd->job_step = ipr_set_supported_devs;
5758 ipr_cmd->u.res = list_entry(ioa_cfg->used_res_q.next,
5759 struct ipr_resource_entry, queue);
5761 if (ioa_cfg->cache_state != CACHE_DISABLED)
5762 return IPR_RC_JOB_CONTINUE;
5764 ipr_cmd->ioarcb.res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE);
5765 ipr_cmd->ioarcb.cmd_pkt.request_type = IPR_RQTYPE_IOACMD;
5766 ipr_cmd->ioarcb.cmd_pkt.cdb[0] = IPR_IOA_SHUTDOWN;
5767 ipr_cmd->ioarcb.cmd_pkt.cdb[1] = IPR_SHUTDOWN_PREPARE_FOR_NORMAL;
5769 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT);
5771 return IPR_RC_JOB_RETURN;
5775 * ipr_get_mode_page - Locate specified mode page
5776 * @mode_pages: mode page buffer
5777 * @page_code: page code to find
5778 * @len: minimum required length for mode page
5781 * pointer to mode page / NULL on failure
5783 static void *ipr_get_mode_page(struct ipr_mode_pages *mode_pages,
5784 u32 page_code, u32 len)
5786 struct ipr_mode_page_hdr *mode_hdr;
5790 if (!mode_pages || (mode_pages->hdr.length == 0))
5793 length = (mode_pages->hdr.length + 1) - 4 - mode_pages->hdr.block_desc_len;
5794 mode_hdr = (struct ipr_mode_page_hdr *)
5795 (mode_pages->data + mode_pages->hdr.block_desc_len);
5798 if (IPR_GET_MODE_PAGE_CODE(mode_hdr) == page_code) {
5799 if (mode_hdr->page_length >= (len - sizeof(struct ipr_mode_page_hdr)))
5803 page_length = (sizeof(struct ipr_mode_page_hdr) +
5804 mode_hdr->page_length);
5805 length -= page_length;
5806 mode_hdr = (struct ipr_mode_page_hdr *)
5807 ((unsigned long)mode_hdr + page_length);
5814 * ipr_check_term_power - Check for term power errors
5815 * @ioa_cfg: ioa config struct
5816 * @mode_pages: IOAFP mode pages buffer
5818 * Check the IOAFP's mode page 28 for term power errors
5823 static void ipr_check_term_power(struct ipr_ioa_cfg *ioa_cfg,
5824 struct ipr_mode_pages *mode_pages)
5828 struct ipr_dev_bus_entry *bus;
5829 struct ipr_mode_page28 *mode_page;
5831 mode_page = ipr_get_mode_page(mode_pages, 0x28,
5832 sizeof(struct ipr_mode_page28));
5834 entry_length = mode_page->entry_length;
5836 bus = mode_page->bus;
5838 for (i = 0; i < mode_page->num_entries; i++) {
5839 if (bus->flags & IPR_SCSI_ATTR_NO_TERM_PWR) {
5840 dev_err(&ioa_cfg->pdev->dev,
5841 "Term power is absent on scsi bus %d\n",
5845 bus = (struct ipr_dev_bus_entry *)((char *)bus + entry_length);
5850 * ipr_scsi_bus_speed_limit - Limit the SCSI speed based on SES table
5851 * @ioa_cfg: ioa config struct
5853 * Looks through the config table checking for SES devices. If
5854 * the SES device is in the SES table indicating a maximum SCSI
5855 * bus speed, the speed is limited for the bus.
5860 static void ipr_scsi_bus_speed_limit(struct ipr_ioa_cfg *ioa_cfg)
5865 for (i = 0; i < IPR_MAX_NUM_BUSES; i++) {
5866 max_xfer_rate = ipr_get_max_scsi_speed(ioa_cfg, i,
5867 ioa_cfg->bus_attr[i].bus_width);
5869 if (max_xfer_rate < ioa_cfg->bus_attr[i].max_xfer_rate)
5870 ioa_cfg->bus_attr[i].max_xfer_rate = max_xfer_rate;
5875 * ipr_modify_ioafp_mode_page_28 - Modify IOAFP Mode Page 28
5876 * @ioa_cfg: ioa config struct
5877 * @mode_pages: mode page 28 buffer
5879 * Updates mode page 28 based on driver configuration
5884 static void ipr_modify_ioafp_mode_page_28(struct ipr_ioa_cfg *ioa_cfg,
5885 struct ipr_mode_pages *mode_pages)
5887 int i, entry_length;
5888 struct ipr_dev_bus_entry *bus;
5889 struct ipr_bus_attributes *bus_attr;
5890 struct ipr_mode_page28 *mode_page;
5892 mode_page = ipr_get_mode_page(mode_pages, 0x28,
5893 sizeof(struct ipr_mode_page28));
5895 entry_length = mode_page->entry_length;
5897 /* Loop for each device bus entry */
5898 for (i = 0, bus = mode_page->bus;
5899 i < mode_page->num_entries;
5900 i++, bus = (struct ipr_dev_bus_entry *)((u8 *)bus + entry_length)) {
5901 if (bus->res_addr.bus > IPR_MAX_NUM_BUSES) {
5902 dev_err(&ioa_cfg->pdev->dev,
5903 "Invalid resource address reported: 0x%08X\n",
5904 IPR_GET_PHYS_LOC(bus->res_addr));
5908 bus_attr = &ioa_cfg->bus_attr[i];
5909 bus->extended_reset_delay = IPR_EXTENDED_RESET_DELAY;
5910 bus->bus_width = bus_attr->bus_width;
5911 bus->max_xfer_rate = cpu_to_be32(bus_attr->max_xfer_rate);
5912 bus->flags &= ~IPR_SCSI_ATTR_QAS_MASK;
5913 if (bus_attr->qas_enabled)
5914 bus->flags |= IPR_SCSI_ATTR_ENABLE_QAS;
5916 bus->flags |= IPR_SCSI_ATTR_DISABLE_QAS;
5921 * ipr_build_mode_select - Build a mode select command
5922 * @ipr_cmd: ipr command struct
5923 * @res_handle: resource handle to send command to
5924 * @parm: Byte 2 of Mode Sense command
5925 * @dma_addr: DMA buffer address
5926 * @xfer_len: data transfer length
5931 static void ipr_build_mode_select(struct ipr_cmnd *ipr_cmd,
5932 __be32 res_handle, u8 parm,
5933 dma_addr_t dma_addr, u8 xfer_len)
5935 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
5937 ioarcb->res_handle = res_handle;
5938 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_SCSICDB;
5939 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ;
5940 ioarcb->cmd_pkt.cdb[0] = MODE_SELECT;
5941 ioarcb->cmd_pkt.cdb[1] = parm;
5942 ioarcb->cmd_pkt.cdb[4] = xfer_len;
5944 ipr_init_ioadl(ipr_cmd, dma_addr, xfer_len, IPR_IOADL_FLAGS_WRITE_LAST);
5948 * ipr_ioafp_mode_select_page28 - Issue Mode Select Page 28 to IOA
5949 * @ipr_cmd: ipr command struct
5951 * This function sets up the SCSI bus attributes and sends
5952 * a Mode Select for Page 28 to activate them.
5957 static int ipr_ioafp_mode_select_page28(struct ipr_cmnd *ipr_cmd)
5959 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
5960 struct ipr_mode_pages *mode_pages = &ioa_cfg->vpd_cbs->mode_pages;
5964 ipr_scsi_bus_speed_limit(ioa_cfg);
5965 ipr_check_term_power(ioa_cfg, mode_pages);
5966 ipr_modify_ioafp_mode_page_28(ioa_cfg, mode_pages);
5967 length = mode_pages->hdr.length + 1;
5968 mode_pages->hdr.length = 0;
5970 ipr_build_mode_select(ipr_cmd, cpu_to_be32(IPR_IOA_RES_HANDLE), 0x11,
5971 ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, mode_pages),
5974 ipr_cmd->job_step = ipr_setup_write_cache;
5975 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT);
5978 return IPR_RC_JOB_RETURN;
5982 * ipr_build_mode_sense - Builds a mode sense command
5983 * @ipr_cmd: ipr command struct
5984 * @res: resource entry struct
5985 * @parm: Byte 2 of mode sense command
5986 * @dma_addr: DMA address of mode sense buffer
5987 * @xfer_len: Size of DMA buffer
5992 static void ipr_build_mode_sense(struct ipr_cmnd *ipr_cmd,
5994 u8 parm, dma_addr_t dma_addr, u8 xfer_len)
5996 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
5998 ioarcb->res_handle = res_handle;
5999 ioarcb->cmd_pkt.cdb[0] = MODE_SENSE;
6000 ioarcb->cmd_pkt.cdb[2] = parm;
6001 ioarcb->cmd_pkt.cdb[4] = xfer_len;
6002 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_SCSICDB;
6004 ipr_init_ioadl(ipr_cmd, dma_addr, xfer_len, IPR_IOADL_FLAGS_READ_LAST);
6008 * ipr_reset_cmd_failed - Handle failure of IOA reset command
6009 * @ipr_cmd: ipr command struct
6011 * This function handles the failure of an IOA bringup command.
6016 static int ipr_reset_cmd_failed(struct ipr_cmnd *ipr_cmd)
6018 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6019 u32 ioasc = be32_to_cpu(ipr_cmd->ioasa.ioasc);
6021 dev_err(&ioa_cfg->pdev->dev,
6022 "0x%02X failed with IOASC: 0x%08X\n",
6023 ipr_cmd->ioarcb.cmd_pkt.cdb[0], ioasc);
6025 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
6026 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
6027 return IPR_RC_JOB_RETURN;
6031 * ipr_reset_mode_sense_failed - Handle failure of IOAFP mode sense
6032 * @ipr_cmd: ipr command struct
6034 * This function handles the failure of a Mode Sense to the IOAFP.
6035 * Some adapters do not handle all mode pages.
6038 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
6040 static int ipr_reset_mode_sense_failed(struct ipr_cmnd *ipr_cmd)
6042 u32 ioasc = be32_to_cpu(ipr_cmd->ioasa.ioasc);
6044 if (ioasc == IPR_IOASC_IR_INVALID_REQ_TYPE_OR_PKT) {
6045 ipr_cmd->job_step = ipr_setup_write_cache;
6046 return IPR_RC_JOB_CONTINUE;
6049 return ipr_reset_cmd_failed(ipr_cmd);
6053 * ipr_ioafp_mode_sense_page28 - Issue Mode Sense Page 28 to IOA
6054 * @ipr_cmd: ipr command struct
6056 * This function send a Page 28 mode sense to the IOA to
6057 * retrieve SCSI bus attributes.
6062 static int ipr_ioafp_mode_sense_page28(struct ipr_cmnd *ipr_cmd)
6064 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6067 ipr_build_mode_sense(ipr_cmd, cpu_to_be32(IPR_IOA_RES_HANDLE),
6068 0x28, ioa_cfg->vpd_cbs_dma +
6069 offsetof(struct ipr_misc_cbs, mode_pages),
6070 sizeof(struct ipr_mode_pages));
6072 ipr_cmd->job_step = ipr_ioafp_mode_select_page28;
6073 ipr_cmd->job_step_failed = ipr_reset_mode_sense_failed;
6075 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT);
6078 return IPR_RC_JOB_RETURN;
6082 * ipr_ioafp_mode_select_page24 - Issue Mode Select to IOA
6083 * @ipr_cmd: ipr command struct
6085 * This function enables dual IOA RAID support if possible.
6090 static int ipr_ioafp_mode_select_page24(struct ipr_cmnd *ipr_cmd)
6092 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6093 struct ipr_mode_pages *mode_pages = &ioa_cfg->vpd_cbs->mode_pages;
6094 struct ipr_mode_page24 *mode_page;
6098 mode_page = ipr_get_mode_page(mode_pages, 0x24,
6099 sizeof(struct ipr_mode_page24));
6102 mode_page->flags |= IPR_ENABLE_DUAL_IOA_AF;
6104 length = mode_pages->hdr.length + 1;
6105 mode_pages->hdr.length = 0;
6107 ipr_build_mode_select(ipr_cmd, cpu_to_be32(IPR_IOA_RES_HANDLE), 0x11,
6108 ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, mode_pages),
6111 ipr_cmd->job_step = ipr_ioafp_mode_sense_page28;
6112 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT);
6115 return IPR_RC_JOB_RETURN;
6119 * ipr_reset_mode_sense_page24_failed - Handle failure of IOAFP mode sense
6120 * @ipr_cmd: ipr command struct
6122 * This function handles the failure of a Mode Sense to the IOAFP.
6123 * Some adapters do not handle all mode pages.
6126 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
6128 static int ipr_reset_mode_sense_page24_failed(struct ipr_cmnd *ipr_cmd)
6130 u32 ioasc = be32_to_cpu(ipr_cmd->ioasa.ioasc);
6132 if (ioasc == IPR_IOASC_IR_INVALID_REQ_TYPE_OR_PKT) {
6133 ipr_cmd->job_step = ipr_ioafp_mode_sense_page28;
6134 return IPR_RC_JOB_CONTINUE;
6137 return ipr_reset_cmd_failed(ipr_cmd);
6141 * ipr_ioafp_mode_sense_page24 - Issue Page 24 Mode Sense to IOA
6142 * @ipr_cmd: ipr command struct
6144 * This function send a mode sense to the IOA to retrieve
6145 * the IOA Advanced Function Control mode page.
6150 static int ipr_ioafp_mode_sense_page24(struct ipr_cmnd *ipr_cmd)
6152 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6155 ipr_build_mode_sense(ipr_cmd, cpu_to_be32(IPR_IOA_RES_HANDLE),
6156 0x24, ioa_cfg->vpd_cbs_dma +
6157 offsetof(struct ipr_misc_cbs, mode_pages),
6158 sizeof(struct ipr_mode_pages));
6160 ipr_cmd->job_step = ipr_ioafp_mode_select_page24;
6161 ipr_cmd->job_step_failed = ipr_reset_mode_sense_page24_failed;
6163 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT);
6166 return IPR_RC_JOB_RETURN;
6170 * ipr_init_res_table - Initialize the resource table
6171 * @ipr_cmd: ipr command struct
6173 * This function looks through the existing resource table, comparing
6174 * it with the config table. This function will take care of old/new
6175 * devices and schedule adding/removing them from the mid-layer
6179 * IPR_RC_JOB_CONTINUE
6181 static int ipr_init_res_table(struct ipr_cmnd *ipr_cmd)
6183 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6184 struct ipr_resource_entry *res, *temp;
6185 struct ipr_config_table_entry *cfgte;
6190 if (ioa_cfg->cfg_table->hdr.flags & IPR_UCODE_DOWNLOAD_REQ)
6191 dev_err(&ioa_cfg->pdev->dev, "Microcode download required\n");
6193 list_for_each_entry_safe(res, temp, &ioa_cfg->used_res_q, queue)
6194 list_move_tail(&res->queue, &old_res);
6196 for (i = 0; i < ioa_cfg->cfg_table->hdr.num_entries; i++) {
6197 cfgte = &ioa_cfg->cfg_table->dev[i];
6200 list_for_each_entry_safe(res, temp, &old_res, queue) {
6201 if (!memcmp(&res->cfgte.res_addr,
6202 &cfgte->res_addr, sizeof(cfgte->res_addr))) {
6203 list_move_tail(&res->queue, &ioa_cfg->used_res_q);
6210 if (list_empty(&ioa_cfg->free_res_q)) {
6211 dev_err(&ioa_cfg->pdev->dev, "Too many devices attached\n");
6216 res = list_entry(ioa_cfg->free_res_q.next,
6217 struct ipr_resource_entry, queue);
6218 list_move_tail(&res->queue, &ioa_cfg->used_res_q);
6219 ipr_init_res_entry(res);
6224 memcpy(&res->cfgte, cfgte, sizeof(struct ipr_config_table_entry));
6227 list_for_each_entry_safe(res, temp, &old_res, queue) {
6229 res->del_from_ml = 1;
6230 res->cfgte.res_handle = IPR_INVALID_RES_HANDLE;
6231 list_move_tail(&res->queue, &ioa_cfg->used_res_q);
6233 list_move_tail(&res->queue, &ioa_cfg->free_res_q);
6237 if (ioa_cfg->dual_raid && ipr_dual_ioa_raid)
6238 ipr_cmd->job_step = ipr_ioafp_mode_sense_page24;
6240 ipr_cmd->job_step = ipr_ioafp_mode_sense_page28;
6243 return IPR_RC_JOB_CONTINUE;
6247 * ipr_ioafp_query_ioa_cfg - Send a Query IOA Config to the adapter.
6248 * @ipr_cmd: ipr command struct
6250 * This function sends a Query IOA Configuration command
6251 * to the adapter to retrieve the IOA configuration table.
6256 static int ipr_ioafp_query_ioa_cfg(struct ipr_cmnd *ipr_cmd)
6258 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6259 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
6260 struct ipr_inquiry_page3 *ucode_vpd = &ioa_cfg->vpd_cbs->page3_data;
6261 struct ipr_inquiry_cap *cap = &ioa_cfg->vpd_cbs->cap;
6264 if (cap->cap & IPR_CAP_DUAL_IOA_RAID)
6265 ioa_cfg->dual_raid = 1;
6266 dev_info(&ioa_cfg->pdev->dev, "Adapter firmware version: %02X%02X%02X%02X\n",
6267 ucode_vpd->major_release, ucode_vpd->card_type,
6268 ucode_vpd->minor_release[0], ucode_vpd->minor_release[1]);
6269 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_IOACMD;
6270 ioarcb->res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE);
6272 ioarcb->cmd_pkt.cdb[0] = IPR_QUERY_IOA_CONFIG;
6273 ioarcb->cmd_pkt.cdb[7] = (sizeof(struct ipr_config_table) >> 8) & 0xff;
6274 ioarcb->cmd_pkt.cdb[8] = sizeof(struct ipr_config_table) & 0xff;
6276 ipr_init_ioadl(ipr_cmd, ioa_cfg->cfg_table_dma,
6277 sizeof(struct ipr_config_table),
6278 IPR_IOADL_FLAGS_READ_LAST);
6280 ipr_cmd->job_step = ipr_init_res_table;
6282 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT);
6285 return IPR_RC_JOB_RETURN;
6289 * ipr_ioafp_inquiry - Send an Inquiry to the adapter.
6290 * @ipr_cmd: ipr command struct
6292 * This utility function sends an inquiry to the adapter.
6297 static void ipr_ioafp_inquiry(struct ipr_cmnd *ipr_cmd, u8 flags, u8 page,
6298 dma_addr_t dma_addr, u8 xfer_len)
6300 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
6303 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_SCSICDB;
6304 ioarcb->res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE);
6306 ioarcb->cmd_pkt.cdb[0] = INQUIRY;
6307 ioarcb->cmd_pkt.cdb[1] = flags;
6308 ioarcb->cmd_pkt.cdb[2] = page;
6309 ioarcb->cmd_pkt.cdb[4] = xfer_len;
6311 ipr_init_ioadl(ipr_cmd, dma_addr, xfer_len, IPR_IOADL_FLAGS_READ_LAST);
6313 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT);
6318 * ipr_inquiry_page_supported - Is the given inquiry page supported
6319 * @page0: inquiry page 0 buffer
6322 * This function determines if the specified inquiry page is supported.
6325 * 1 if page is supported / 0 if not
6327 static int ipr_inquiry_page_supported(struct ipr_inquiry_page0 *page0, u8 page)
6331 for (i = 0; i < min_t(u8, page0->len, IPR_INQUIRY_PAGE0_ENTRIES); i++)
6332 if (page0->page[i] == page)
6339 * ipr_ioafp_cap_inquiry - Send a Page 0xD0 Inquiry to the adapter.
6340 * @ipr_cmd: ipr command struct
6342 * This function sends a Page 0xD0 inquiry to the adapter
6343 * to retrieve adapter capabilities.
6346 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
6348 static int ipr_ioafp_cap_inquiry(struct ipr_cmnd *ipr_cmd)
6350 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6351 struct ipr_inquiry_page0 *page0 = &ioa_cfg->vpd_cbs->page0_data;
6352 struct ipr_inquiry_cap *cap = &ioa_cfg->vpd_cbs->cap;
6355 ipr_cmd->job_step = ipr_ioafp_query_ioa_cfg;
6356 memset(cap, 0, sizeof(*cap));
6358 if (ipr_inquiry_page_supported(page0, 0xD0)) {
6359 ipr_ioafp_inquiry(ipr_cmd, 1, 0xD0,
6360 ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, cap),
6361 sizeof(struct ipr_inquiry_cap));
6362 return IPR_RC_JOB_RETURN;
6366 return IPR_RC_JOB_CONTINUE;
6370 * ipr_ioafp_page3_inquiry - Send a Page 3 Inquiry to the adapter.
6371 * @ipr_cmd: ipr command struct
6373 * This function sends a Page 3 inquiry to the adapter
6374 * to retrieve software VPD information.
6377 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
6379 static int ipr_ioafp_page3_inquiry(struct ipr_cmnd *ipr_cmd)
6381 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6382 struct ipr_inquiry_page0 *page0 = &ioa_cfg->vpd_cbs->page0_data;
6386 if (!ipr_inquiry_page_supported(page0, 1))
6387 ioa_cfg->cache_state = CACHE_NONE;
6389 ipr_cmd->job_step = ipr_ioafp_cap_inquiry;
6391 ipr_ioafp_inquiry(ipr_cmd, 1, 3,
6392 ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, page3_data),
6393 sizeof(struct ipr_inquiry_page3));
6396 return IPR_RC_JOB_RETURN;
6400 * ipr_ioafp_page0_inquiry - Send a Page 0 Inquiry to the adapter.
6401 * @ipr_cmd: ipr command struct
6403 * This function sends a Page 0 inquiry to the adapter
6404 * to retrieve supported inquiry pages.
6407 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
6409 static int ipr_ioafp_page0_inquiry(struct ipr_cmnd *ipr_cmd)
6411 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6416 /* Grab the type out of the VPD and store it away */
6417 memcpy(type, ioa_cfg->vpd_cbs->ioa_vpd.std_inq_data.vpids.product_id, 4);
6419 ioa_cfg->type = simple_strtoul((char *)type, NULL, 16);
6421 ipr_cmd->job_step = ipr_ioafp_page3_inquiry;
6423 ipr_ioafp_inquiry(ipr_cmd, 1, 0,
6424 ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, page0_data),
6425 sizeof(struct ipr_inquiry_page0));
6428 return IPR_RC_JOB_RETURN;
6432 * ipr_ioafp_std_inquiry - Send a Standard Inquiry to the adapter.
6433 * @ipr_cmd: ipr command struct
6435 * This function sends a standard inquiry to the adapter.
6440 static int ipr_ioafp_std_inquiry(struct ipr_cmnd *ipr_cmd)
6442 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6445 ipr_cmd->job_step = ipr_ioafp_page0_inquiry;
6447 ipr_ioafp_inquiry(ipr_cmd, 0, 0,
6448 ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, ioa_vpd),
6449 sizeof(struct ipr_ioa_vpd));
6452 return IPR_RC_JOB_RETURN;
6456 * ipr_ioafp_indentify_hrrq - Send Identify Host RRQ.
6457 * @ipr_cmd: ipr command struct
6459 * This function send an Identify Host Request Response Queue
6460 * command to establish the HRRQ with the adapter.
6465 static int ipr_ioafp_indentify_hrrq(struct ipr_cmnd *ipr_cmd)
6467 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6468 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
6471 dev_info(&ioa_cfg->pdev->dev, "Starting IOA initialization sequence.\n");
6473 ioarcb->cmd_pkt.cdb[0] = IPR_ID_HOST_RR_Q;
6474 ioarcb->res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE);
6476 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_IOACMD;
6477 ioarcb->cmd_pkt.cdb[2] =
6478 ((u32) ioa_cfg->host_rrq_dma >> 24) & 0xff;
6479 ioarcb->cmd_pkt.cdb[3] =
6480 ((u32) ioa_cfg->host_rrq_dma >> 16) & 0xff;
6481 ioarcb->cmd_pkt.cdb[4] =
6482 ((u32) ioa_cfg->host_rrq_dma >> 8) & 0xff;
6483 ioarcb->cmd_pkt.cdb[5] =
6484 ((u32) ioa_cfg->host_rrq_dma) & 0xff;
6485 ioarcb->cmd_pkt.cdb[7] =
6486 ((sizeof(u32) * IPR_NUM_CMD_BLKS) >> 8) & 0xff;
6487 ioarcb->cmd_pkt.cdb[8] =
6488 (sizeof(u32) * IPR_NUM_CMD_BLKS) & 0xff;
6490 ipr_cmd->job_step = ipr_ioafp_std_inquiry;
6492 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT);
6495 return IPR_RC_JOB_RETURN;
6499 * ipr_reset_timer_done - Adapter reset timer function
6500 * @ipr_cmd: ipr command struct
6502 * Description: This function is used in adapter reset processing
6503 * for timing events. If the reset_cmd pointer in the IOA
6504 * config struct is not this adapter's we are doing nested
6505 * resets and fail_all_ops will take care of freeing the
6511 static void ipr_reset_timer_done(struct ipr_cmnd *ipr_cmd)
6513 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6514 unsigned long lock_flags = 0;
6516 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
6518 if (ioa_cfg->reset_cmd == ipr_cmd) {
6519 list_del(&ipr_cmd->queue);
6520 ipr_cmd->done(ipr_cmd);
6523 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
6527 * ipr_reset_start_timer - Start a timer for adapter reset job
6528 * @ipr_cmd: ipr command struct
6529 * @timeout: timeout value
6531 * Description: This function is used in adapter reset processing
6532 * for timing events. If the reset_cmd pointer in the IOA
6533 * config struct is not this adapter's we are doing nested
6534 * resets and fail_all_ops will take care of freeing the
6540 static void ipr_reset_start_timer(struct ipr_cmnd *ipr_cmd,
6541 unsigned long timeout)
6543 list_add_tail(&ipr_cmd->queue, &ipr_cmd->ioa_cfg->pending_q);
6544 ipr_cmd->done = ipr_reset_ioa_job;
6546 ipr_cmd->timer.data = (unsigned long) ipr_cmd;
6547 ipr_cmd->timer.expires = jiffies + timeout;
6548 ipr_cmd->timer.function = (void (*)(unsigned long))ipr_reset_timer_done;
6549 add_timer(&ipr_cmd->timer);
6553 * ipr_init_ioa_mem - Initialize ioa_cfg control block
6554 * @ioa_cfg: ioa cfg struct
6559 static void ipr_init_ioa_mem(struct ipr_ioa_cfg *ioa_cfg)
6561 memset(ioa_cfg->host_rrq, 0, sizeof(u32) * IPR_NUM_CMD_BLKS);
6563 /* Initialize Host RRQ pointers */
6564 ioa_cfg->hrrq_start = ioa_cfg->host_rrq;
6565 ioa_cfg->hrrq_end = &ioa_cfg->host_rrq[IPR_NUM_CMD_BLKS - 1];
6566 ioa_cfg->hrrq_curr = ioa_cfg->hrrq_start;
6567 ioa_cfg->toggle_bit = 1;
6569 /* Zero out config table */
6570 memset(ioa_cfg->cfg_table, 0, sizeof(struct ipr_config_table));
6574 * ipr_reset_enable_ioa - Enable the IOA following a reset.
6575 * @ipr_cmd: ipr command struct
6577 * This function reinitializes some control blocks and
6578 * enables destructive diagnostics on the adapter.
6583 static int ipr_reset_enable_ioa(struct ipr_cmnd *ipr_cmd)
6585 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6586 volatile u32 int_reg;
6589 ipr_cmd->job_step = ipr_ioafp_indentify_hrrq;
6590 ipr_init_ioa_mem(ioa_cfg);
6592 ioa_cfg->allow_interrupts = 1;
6593 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg);
6595 if (int_reg & IPR_PCII_IOA_TRANS_TO_OPER) {
6596 writel((IPR_PCII_ERROR_INTERRUPTS | IPR_PCII_HRRQ_UPDATED),
6597 ioa_cfg->regs.clr_interrupt_mask_reg);
6598 int_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg);
6599 return IPR_RC_JOB_CONTINUE;
6602 /* Enable destructive diagnostics on IOA */
6603 writel(ioa_cfg->doorbell, ioa_cfg->regs.set_uproc_interrupt_reg);
6605 writel(IPR_PCII_OPER_INTERRUPTS, ioa_cfg->regs.clr_interrupt_mask_reg);
6606 int_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg);
6608 dev_info(&ioa_cfg->pdev->dev, "Initializing IOA.\n");
6610 ipr_cmd->timer.data = (unsigned long) ipr_cmd;
6611 ipr_cmd->timer.expires = jiffies + (ioa_cfg->transop_timeout * HZ);
6612 ipr_cmd->timer.function = (void (*)(unsigned long))ipr_oper_timeout;
6613 ipr_cmd->done = ipr_reset_ioa_job;
6614 add_timer(&ipr_cmd->timer);
6615 list_add_tail(&ipr_cmd->queue, &ioa_cfg->pending_q);
6618 return IPR_RC_JOB_RETURN;
6622 * ipr_reset_wait_for_dump - Wait for a dump to timeout.
6623 * @ipr_cmd: ipr command struct
6625 * This function is invoked when an adapter dump has run out
6626 * of processing time.
6629 * IPR_RC_JOB_CONTINUE
6631 static int ipr_reset_wait_for_dump(struct ipr_cmnd *ipr_cmd)
6633 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6635 if (ioa_cfg->sdt_state == GET_DUMP)
6636 ioa_cfg->sdt_state = ABORT_DUMP;
6638 ipr_cmd->job_step = ipr_reset_alert;
6640 return IPR_RC_JOB_CONTINUE;
6644 * ipr_unit_check_no_data - Log a unit check/no data error log
6645 * @ioa_cfg: ioa config struct
6647 * Logs an error indicating the adapter unit checked, but for some
6648 * reason, we were unable to fetch the unit check buffer.
6653 static void ipr_unit_check_no_data(struct ipr_ioa_cfg *ioa_cfg)
6655 ioa_cfg->errors_logged++;
6656 dev_err(&ioa_cfg->pdev->dev, "IOA unit check with no data\n");
6660 * ipr_get_unit_check_buffer - Get the unit check buffer from the IOA
6661 * @ioa_cfg: ioa config struct
6663 * Fetches the unit check buffer from the adapter by clocking the data
6664 * through the mailbox register.
6669 static void ipr_get_unit_check_buffer(struct ipr_ioa_cfg *ioa_cfg)
6671 unsigned long mailbox;
6672 struct ipr_hostrcb *hostrcb;
6673 struct ipr_uc_sdt sdt;
6677 mailbox = readl(ioa_cfg->ioa_mailbox);
6679 if (!ipr_sdt_is_fmt2(mailbox)) {
6680 ipr_unit_check_no_data(ioa_cfg);
6684 memset(&sdt, 0, sizeof(struct ipr_uc_sdt));
6685 rc = ipr_get_ldump_data_section(ioa_cfg, mailbox, (__be32 *) &sdt,
6686 (sizeof(struct ipr_uc_sdt)) / sizeof(__be32));
6688 if (rc || (be32_to_cpu(sdt.hdr.state) != IPR_FMT2_SDT_READY_TO_USE) ||
6689 !(sdt.entry[0].flags & IPR_SDT_VALID_ENTRY)) {
6690 ipr_unit_check_no_data(ioa_cfg);
6694 /* Find length of the first sdt entry (UC buffer) */
6695 length = (be32_to_cpu(sdt.entry[0].end_offset) -
6696 be32_to_cpu(sdt.entry[0].bar_str_offset)) & IPR_FMT2_MBX_ADDR_MASK;
6698 hostrcb = list_entry(ioa_cfg->hostrcb_free_q.next,
6699 struct ipr_hostrcb, queue);
6700 list_del(&hostrcb->queue);
6701 memset(&hostrcb->hcam, 0, sizeof(hostrcb->hcam));
6703 rc = ipr_get_ldump_data_section(ioa_cfg,
6704 be32_to_cpu(sdt.entry[0].bar_str_offset),
6705 (__be32 *)&hostrcb->hcam,
6706 min(length, (int)sizeof(hostrcb->hcam)) / sizeof(__be32));
6709 ipr_handle_log_data(ioa_cfg, hostrcb);
6710 ioasc = be32_to_cpu(hostrcb->hcam.u.error.failing_dev_ioasc);
6711 if (ioasc == IPR_IOASC_NR_IOA_RESET_REQUIRED &&
6712 ioa_cfg->sdt_state == GET_DUMP)
6713 ioa_cfg->sdt_state = WAIT_FOR_DUMP;
6715 ipr_unit_check_no_data(ioa_cfg);
6717 list_add_tail(&hostrcb->queue, &ioa_cfg->hostrcb_free_q);
6721 * ipr_reset_restore_cfg_space - Restore PCI config space.
6722 * @ipr_cmd: ipr command struct
6724 * Description: This function restores the saved PCI config space of
6725 * the adapter, fails all outstanding ops back to the callers, and
6726 * fetches the dump/unit check if applicable to this reset.
6729 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
6731 static int ipr_reset_restore_cfg_space(struct ipr_cmnd *ipr_cmd)
6733 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6737 ioa_cfg->pdev->state_saved = true;
6738 rc = pci_restore_state(ioa_cfg->pdev);
6740 if (rc != PCIBIOS_SUCCESSFUL) {
6741 ipr_cmd->ioasa.ioasc = cpu_to_be32(IPR_IOASC_PCI_ACCESS_ERROR);
6742 return IPR_RC_JOB_CONTINUE;
6745 if (ipr_set_pcix_cmd_reg(ioa_cfg)) {
6746 ipr_cmd->ioasa.ioasc = cpu_to_be32(IPR_IOASC_PCI_ACCESS_ERROR);
6747 return IPR_RC_JOB_CONTINUE;
6750 ipr_fail_all_ops(ioa_cfg);
6752 if (ioa_cfg->ioa_unit_checked) {
6753 ioa_cfg->ioa_unit_checked = 0;
6754 ipr_get_unit_check_buffer(ioa_cfg);
6755 ipr_cmd->job_step = ipr_reset_alert;
6756 ipr_reset_start_timer(ipr_cmd, 0);
6757 return IPR_RC_JOB_RETURN;
6760 if (ioa_cfg->in_ioa_bringdown) {
6761 ipr_cmd->job_step = ipr_ioa_bringdown_done;
6763 ipr_cmd->job_step = ipr_reset_enable_ioa;
6765 if (GET_DUMP == ioa_cfg->sdt_state) {
6766 ipr_reset_start_timer(ipr_cmd, IPR_DUMP_TIMEOUT);
6767 ipr_cmd->job_step = ipr_reset_wait_for_dump;
6768 schedule_work(&ioa_cfg->work_q);
6769 return IPR_RC_JOB_RETURN;
6774 return IPR_RC_JOB_CONTINUE;
6778 * ipr_reset_bist_done - BIST has completed on the adapter.
6779 * @ipr_cmd: ipr command struct
6781 * Description: Unblock config space and resume the reset process.
6784 * IPR_RC_JOB_CONTINUE
6786 static int ipr_reset_bist_done(struct ipr_cmnd *ipr_cmd)
6789 pci_unblock_user_cfg_access(ipr_cmd->ioa_cfg->pdev);
6790 ipr_cmd->job_step = ipr_reset_restore_cfg_space;
6792 return IPR_RC_JOB_CONTINUE;
6796 * ipr_reset_start_bist - Run BIST on the adapter.
6797 * @ipr_cmd: ipr command struct
6799 * Description: This function runs BIST on the adapter, then delays 2 seconds.
6802 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
6804 static int ipr_reset_start_bist(struct ipr_cmnd *ipr_cmd)
6806 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6810 pci_block_user_cfg_access(ioa_cfg->pdev);
6811 rc = pci_write_config_byte(ioa_cfg->pdev, PCI_BIST, PCI_BIST_START);
6813 if (rc != PCIBIOS_SUCCESSFUL) {
6814 pci_unblock_user_cfg_access(ipr_cmd->ioa_cfg->pdev);
6815 ipr_cmd->ioasa.ioasc = cpu_to_be32(IPR_IOASC_PCI_ACCESS_ERROR);
6816 rc = IPR_RC_JOB_CONTINUE;
6818 ipr_cmd->job_step = ipr_reset_bist_done;
6819 ipr_reset_start_timer(ipr_cmd, IPR_WAIT_FOR_BIST_TIMEOUT);
6820 rc = IPR_RC_JOB_RETURN;
6828 * ipr_reset_slot_reset_done - Clear PCI reset to the adapter
6829 * @ipr_cmd: ipr command struct
6831 * Description: This clears PCI reset to the adapter and delays two seconds.
6836 static int ipr_reset_slot_reset_done(struct ipr_cmnd *ipr_cmd)
6839 pci_set_pcie_reset_state(ipr_cmd->ioa_cfg->pdev, pcie_deassert_reset);
6840 ipr_cmd->job_step = ipr_reset_bist_done;
6841 ipr_reset_start_timer(ipr_cmd, IPR_WAIT_FOR_BIST_TIMEOUT);
6843 return IPR_RC_JOB_RETURN;
6847 * ipr_reset_slot_reset - Reset the PCI slot of the adapter.
6848 * @ipr_cmd: ipr command struct
6850 * Description: This asserts PCI reset to the adapter.
6855 static int ipr_reset_slot_reset(struct ipr_cmnd *ipr_cmd)
6857 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6858 struct pci_dev *pdev = ioa_cfg->pdev;
6861 pci_block_user_cfg_access(pdev);
6862 pci_set_pcie_reset_state(pdev, pcie_warm_reset);
6863 ipr_cmd->job_step = ipr_reset_slot_reset_done;
6864 ipr_reset_start_timer(ipr_cmd, IPR_PCI_RESET_TIMEOUT);
6866 return IPR_RC_JOB_RETURN;
6870 * ipr_reset_allowed - Query whether or not IOA can be reset
6871 * @ioa_cfg: ioa config struct
6874 * 0 if reset not allowed / non-zero if reset is allowed
6876 static int ipr_reset_allowed(struct ipr_ioa_cfg *ioa_cfg)
6878 volatile u32 temp_reg;
6880 temp_reg = readl(ioa_cfg->regs.sense_interrupt_reg);
6881 return ((temp_reg & IPR_PCII_CRITICAL_OPERATION) == 0);
6885 * ipr_reset_wait_to_start_bist - Wait for permission to reset IOA.
6886 * @ipr_cmd: ipr command struct
6888 * Description: This function waits for adapter permission to run BIST,
6889 * then runs BIST. If the adapter does not give permission after a
6890 * reasonable time, we will reset the adapter anyway. The impact of
6891 * resetting the adapter without warning the adapter is the risk of
6892 * losing the persistent error log on the adapter. If the adapter is
6893 * reset while it is writing to the flash on the adapter, the flash
6894 * segment will have bad ECC and be zeroed.
6897 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
6899 static int ipr_reset_wait_to_start_bist(struct ipr_cmnd *ipr_cmd)
6901 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6902 int rc = IPR_RC_JOB_RETURN;
6904 if (!ipr_reset_allowed(ioa_cfg) && ipr_cmd->u.time_left) {
6905 ipr_cmd->u.time_left -= IPR_CHECK_FOR_RESET_TIMEOUT;
6906 ipr_reset_start_timer(ipr_cmd, IPR_CHECK_FOR_RESET_TIMEOUT);
6908 ipr_cmd->job_step = ioa_cfg->reset;
6909 rc = IPR_RC_JOB_CONTINUE;
6916 * ipr_reset_alert_part2 - Alert the adapter of a pending reset
6917 * @ipr_cmd: ipr command struct
6919 * Description: This function alerts the adapter that it will be reset.
6920 * If memory space is not currently enabled, proceed directly
6921 * to running BIST on the adapter. The timer must always be started
6922 * so we guarantee we do not run BIST from ipr_isr.
6927 static int ipr_reset_alert(struct ipr_cmnd *ipr_cmd)
6929 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6934 rc = pci_read_config_word(ioa_cfg->pdev, PCI_COMMAND, &cmd_reg);
6936 if ((rc == PCIBIOS_SUCCESSFUL) && (cmd_reg & PCI_COMMAND_MEMORY)) {
6937 ipr_mask_and_clear_interrupts(ioa_cfg, ~0);
6938 writel(IPR_UPROCI_RESET_ALERT, ioa_cfg->regs.set_uproc_interrupt_reg);
6939 ipr_cmd->job_step = ipr_reset_wait_to_start_bist;
6941 ipr_cmd->job_step = ioa_cfg->reset;
6944 ipr_cmd->u.time_left = IPR_WAIT_FOR_RESET_TIMEOUT;
6945 ipr_reset_start_timer(ipr_cmd, IPR_CHECK_FOR_RESET_TIMEOUT);
6948 return IPR_RC_JOB_RETURN;
6952 * ipr_reset_ucode_download_done - Microcode download completion
6953 * @ipr_cmd: ipr command struct
6955 * Description: This function unmaps the microcode download buffer.
6958 * IPR_RC_JOB_CONTINUE
6960 static int ipr_reset_ucode_download_done(struct ipr_cmnd *ipr_cmd)
6962 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6963 struct ipr_sglist *sglist = ioa_cfg->ucode_sglist;
6965 pci_unmap_sg(ioa_cfg->pdev, sglist->scatterlist,
6966 sglist->num_sg, DMA_TO_DEVICE);
6968 ipr_cmd->job_step = ipr_reset_alert;
6969 return IPR_RC_JOB_CONTINUE;
6973 * ipr_reset_ucode_download - Download microcode to the adapter
6974 * @ipr_cmd: ipr command struct
6976 * Description: This function checks to see if it there is microcode
6977 * to download to the adapter. If there is, a download is performed.
6980 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
6982 static int ipr_reset_ucode_download(struct ipr_cmnd *ipr_cmd)
6984 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6985 struct ipr_sglist *sglist = ioa_cfg->ucode_sglist;
6988 ipr_cmd->job_step = ipr_reset_alert;
6991 return IPR_RC_JOB_CONTINUE;
6993 ipr_cmd->ioarcb.res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE);
6994 ipr_cmd->ioarcb.cmd_pkt.request_type = IPR_RQTYPE_SCSICDB;
6995 ipr_cmd->ioarcb.cmd_pkt.cdb[0] = WRITE_BUFFER;
6996 ipr_cmd->ioarcb.cmd_pkt.cdb[1] = IPR_WR_BUF_DOWNLOAD_AND_SAVE;
6997 ipr_cmd->ioarcb.cmd_pkt.cdb[6] = (sglist->buffer_len & 0xff0000) >> 16;
6998 ipr_cmd->ioarcb.cmd_pkt.cdb[7] = (sglist->buffer_len & 0x00ff00) >> 8;
6999 ipr_cmd->ioarcb.cmd_pkt.cdb[8] = sglist->buffer_len & 0x0000ff;
7002 ipr_build_ucode_ioadl64(ipr_cmd, sglist);
7004 ipr_build_ucode_ioadl(ipr_cmd, sglist);
7005 ipr_cmd->job_step = ipr_reset_ucode_download_done;
7007 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout,
7008 IPR_WRITE_BUFFER_TIMEOUT);
7011 return IPR_RC_JOB_RETURN;
7015 * ipr_reset_shutdown_ioa - Shutdown the adapter
7016 * @ipr_cmd: ipr command struct
7018 * Description: This function issues an adapter shutdown of the
7019 * specified type to the specified adapter as part of the
7020 * adapter reset job.
7023 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
7025 static int ipr_reset_shutdown_ioa(struct ipr_cmnd *ipr_cmd)
7027 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7028 enum ipr_shutdown_type shutdown_type = ipr_cmd->u.shutdown_type;
7029 unsigned long timeout;
7030 int rc = IPR_RC_JOB_CONTINUE;
7033 if (shutdown_type != IPR_SHUTDOWN_NONE && !ioa_cfg->ioa_is_dead) {
7034 ipr_cmd->ioarcb.res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE);
7035 ipr_cmd->ioarcb.cmd_pkt.request_type = IPR_RQTYPE_IOACMD;
7036 ipr_cmd->ioarcb.cmd_pkt.cdb[0] = IPR_IOA_SHUTDOWN;
7037 ipr_cmd->ioarcb.cmd_pkt.cdb[1] = shutdown_type;
7039 if (shutdown_type == IPR_SHUTDOWN_NORMAL)
7040 timeout = IPR_SHUTDOWN_TIMEOUT;
7041 else if (shutdown_type == IPR_SHUTDOWN_PREPARE_FOR_NORMAL)
7042 timeout = IPR_INTERNAL_TIMEOUT;
7043 else if (ioa_cfg->dual_raid && ipr_dual_ioa_raid)
7044 timeout = IPR_DUAL_IOA_ABBR_SHUTDOWN_TO;
7046 timeout = IPR_ABBREV_SHUTDOWN_TIMEOUT;
7048 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, timeout);
7050 rc = IPR_RC_JOB_RETURN;
7051 ipr_cmd->job_step = ipr_reset_ucode_download;
7053 ipr_cmd->job_step = ipr_reset_alert;
7060 * ipr_reset_ioa_job - Adapter reset job
7061 * @ipr_cmd: ipr command struct
7063 * Description: This function is the job router for the adapter reset job.
7068 static void ipr_reset_ioa_job(struct ipr_cmnd *ipr_cmd)
7071 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
7074 ioasc = be32_to_cpu(ipr_cmd->ioasa.ioasc);
7076 if (ioa_cfg->reset_cmd != ipr_cmd) {
7078 * We are doing nested adapter resets and this is
7079 * not the current reset job.
7081 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
7085 if (IPR_IOASC_SENSE_KEY(ioasc)) {
7086 rc = ipr_cmd->job_step_failed(ipr_cmd);
7087 if (rc == IPR_RC_JOB_RETURN)
7091 ipr_reinit_ipr_cmnd(ipr_cmd);
7092 ipr_cmd->job_step_failed = ipr_reset_cmd_failed;
7093 rc = ipr_cmd->job_step(ipr_cmd);
7094 } while(rc == IPR_RC_JOB_CONTINUE);
7098 * _ipr_initiate_ioa_reset - Initiate an adapter reset
7099 * @ioa_cfg: ioa config struct
7100 * @job_step: first job step of reset job
7101 * @shutdown_type: shutdown type
7103 * Description: This function will initiate the reset of the given adapter
7104 * starting at the selected job step.
7105 * If the caller needs to wait on the completion of the reset,
7106 * the caller must sleep on the reset_wait_q.
7111 static void _ipr_initiate_ioa_reset(struct ipr_ioa_cfg *ioa_cfg,
7112 int (*job_step) (struct ipr_cmnd *),
7113 enum ipr_shutdown_type shutdown_type)
7115 struct ipr_cmnd *ipr_cmd;
7117 ioa_cfg->in_reset_reload = 1;
7118 ioa_cfg->allow_cmds = 0;
7119 scsi_block_requests(ioa_cfg->host);
7121 ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg);
7122 ioa_cfg->reset_cmd = ipr_cmd;
7123 ipr_cmd->job_step = job_step;
7124 ipr_cmd->u.shutdown_type = shutdown_type;
7126 ipr_reset_ioa_job(ipr_cmd);
7130 * ipr_initiate_ioa_reset - Initiate an adapter reset
7131 * @ioa_cfg: ioa config struct
7132 * @shutdown_type: shutdown type
7134 * Description: This function will initiate the reset of the given adapter.
7135 * If the caller needs to wait on the completion of the reset,
7136 * the caller must sleep on the reset_wait_q.
7141 static void ipr_initiate_ioa_reset(struct ipr_ioa_cfg *ioa_cfg,
7142 enum ipr_shutdown_type shutdown_type)
7144 if (ioa_cfg->ioa_is_dead)
7147 if (ioa_cfg->in_reset_reload && ioa_cfg->sdt_state == GET_DUMP)
7148 ioa_cfg->sdt_state = ABORT_DUMP;
7150 if (ioa_cfg->reset_retries++ >= IPR_NUM_RESET_RELOAD_RETRIES) {
7151 dev_err(&ioa_cfg->pdev->dev,
7152 "IOA taken offline - error recovery failed\n");
7154 ioa_cfg->reset_retries = 0;
7155 ioa_cfg->ioa_is_dead = 1;
7157 if (ioa_cfg->in_ioa_bringdown) {
7158 ioa_cfg->reset_cmd = NULL;
7159 ioa_cfg->in_reset_reload = 0;
7160 ipr_fail_all_ops(ioa_cfg);
7161 wake_up_all(&ioa_cfg->reset_wait_q);
7163 spin_unlock_irq(ioa_cfg->host->host_lock);
7164 scsi_unblock_requests(ioa_cfg->host);
7165 spin_lock_irq(ioa_cfg->host->host_lock);
7168 ioa_cfg->in_ioa_bringdown = 1;
7169 shutdown_type = IPR_SHUTDOWN_NONE;
7173 _ipr_initiate_ioa_reset(ioa_cfg, ipr_reset_shutdown_ioa,
7178 * ipr_reset_freeze - Hold off all I/O activity
7179 * @ipr_cmd: ipr command struct
7181 * Description: If the PCI slot is frozen, hold off all I/O
7182 * activity; then, as soon as the slot is available again,
7183 * initiate an adapter reset.
7185 static int ipr_reset_freeze(struct ipr_cmnd *ipr_cmd)
7187 /* Disallow new interrupts, avoid loop */
7188 ipr_cmd->ioa_cfg->allow_interrupts = 0;
7189 list_add_tail(&ipr_cmd->queue, &ipr_cmd->ioa_cfg->pending_q);
7190 ipr_cmd->done = ipr_reset_ioa_job;
7191 return IPR_RC_JOB_RETURN;
7195 * ipr_pci_frozen - Called when slot has experienced a PCI bus error.
7196 * @pdev: PCI device struct
7198 * Description: This routine is called to tell us that the PCI bus
7199 * is down. Can't do anything here, except put the device driver
7200 * into a holding pattern, waiting for the PCI bus to come back.
7202 static void ipr_pci_frozen(struct pci_dev *pdev)
7204 unsigned long flags = 0;
7205 struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev);
7207 spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
7208 _ipr_initiate_ioa_reset(ioa_cfg, ipr_reset_freeze, IPR_SHUTDOWN_NONE);
7209 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
7213 * ipr_pci_slot_reset - Called when PCI slot has been reset.
7214 * @pdev: PCI device struct
7216 * Description: This routine is called by the pci error recovery
7217 * code after the PCI slot has been reset, just before we
7218 * should resume normal operations.
7220 static pci_ers_result_t ipr_pci_slot_reset(struct pci_dev *pdev)
7222 unsigned long flags = 0;
7223 struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev);
7225 spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
7226 if (ioa_cfg->needs_warm_reset)
7227 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
7229 _ipr_initiate_ioa_reset(ioa_cfg, ipr_reset_restore_cfg_space,
7231 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
7232 return PCI_ERS_RESULT_RECOVERED;
7236 * ipr_pci_perm_failure - Called when PCI slot is dead for good.
7237 * @pdev: PCI device struct
7239 * Description: This routine is called when the PCI bus has
7240 * permanently failed.
7242 static void ipr_pci_perm_failure(struct pci_dev *pdev)
7244 unsigned long flags = 0;
7245 struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev);
7247 spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
7248 if (ioa_cfg->sdt_state == WAIT_FOR_DUMP)
7249 ioa_cfg->sdt_state = ABORT_DUMP;
7250 ioa_cfg->reset_retries = IPR_NUM_RESET_RELOAD_RETRIES;
7251 ioa_cfg->in_ioa_bringdown = 1;
7252 ioa_cfg->allow_cmds = 0;
7253 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
7254 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
7258 * ipr_pci_error_detected - Called when a PCI error is detected.
7259 * @pdev: PCI device struct
7260 * @state: PCI channel state
7262 * Description: Called when a PCI error is detected.
7265 * PCI_ERS_RESULT_NEED_RESET or PCI_ERS_RESULT_DISCONNECT
7267 static pci_ers_result_t ipr_pci_error_detected(struct pci_dev *pdev,
7268 pci_channel_state_t state)
7271 case pci_channel_io_frozen:
7272 ipr_pci_frozen(pdev);
7273 return PCI_ERS_RESULT_NEED_RESET;
7274 case pci_channel_io_perm_failure:
7275 ipr_pci_perm_failure(pdev);
7276 return PCI_ERS_RESULT_DISCONNECT;
7281 return PCI_ERS_RESULT_NEED_RESET;
7285 * ipr_probe_ioa_part2 - Initializes IOAs found in ipr_probe_ioa(..)
7286 * @ioa_cfg: ioa cfg struct
7288 * Description: This is the second phase of adapter intialization
7289 * This function takes care of initilizing the adapter to the point
7290 * where it can accept new commands.
7293 * 0 on success / -EIO on failure
7295 static int __devinit ipr_probe_ioa_part2(struct ipr_ioa_cfg *ioa_cfg)
7298 unsigned long host_lock_flags = 0;
7301 spin_lock_irqsave(ioa_cfg->host->host_lock, host_lock_flags);
7302 dev_dbg(&ioa_cfg->pdev->dev, "ioa_cfg adx: 0x%p\n", ioa_cfg);
7303 if (ioa_cfg->needs_hard_reset) {
7304 ioa_cfg->needs_hard_reset = 0;
7305 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
7307 _ipr_initiate_ioa_reset(ioa_cfg, ipr_reset_enable_ioa,
7310 spin_unlock_irqrestore(ioa_cfg->host->host_lock, host_lock_flags);
7311 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
7312 spin_lock_irqsave(ioa_cfg->host->host_lock, host_lock_flags);
7314 if (ioa_cfg->ioa_is_dead) {
7316 } else if (ipr_invalid_adapter(ioa_cfg)) {
7320 dev_err(&ioa_cfg->pdev->dev,
7321 "Adapter not supported in this hardware configuration.\n");
7324 spin_unlock_irqrestore(ioa_cfg->host->host_lock, host_lock_flags);
7331 * ipr_free_cmd_blks - Frees command blocks allocated for an adapter
7332 * @ioa_cfg: ioa config struct
7337 static void ipr_free_cmd_blks(struct ipr_ioa_cfg *ioa_cfg)
7341 for (i = 0; i < IPR_NUM_CMD_BLKS; i++) {
7342 if (ioa_cfg->ipr_cmnd_list[i])
7343 pci_pool_free(ioa_cfg->ipr_cmd_pool,
7344 ioa_cfg->ipr_cmnd_list[i],
7345 ioa_cfg->ipr_cmnd_list_dma[i]);
7347 ioa_cfg->ipr_cmnd_list[i] = NULL;
7350 if (ioa_cfg->ipr_cmd_pool)
7351 pci_pool_destroy (ioa_cfg->ipr_cmd_pool);
7353 ioa_cfg->ipr_cmd_pool = NULL;
7357 * ipr_free_mem - Frees memory allocated for an adapter
7358 * @ioa_cfg: ioa cfg struct
7363 static void ipr_free_mem(struct ipr_ioa_cfg *ioa_cfg)
7367 kfree(ioa_cfg->res_entries);
7368 pci_free_consistent(ioa_cfg->pdev, sizeof(struct ipr_misc_cbs),
7369 ioa_cfg->vpd_cbs, ioa_cfg->vpd_cbs_dma);
7370 ipr_free_cmd_blks(ioa_cfg);
7371 pci_free_consistent(ioa_cfg->pdev, sizeof(u32) * IPR_NUM_CMD_BLKS,
7372 ioa_cfg->host_rrq, ioa_cfg->host_rrq_dma);
7373 pci_free_consistent(ioa_cfg->pdev, sizeof(struct ipr_config_table),
7375 ioa_cfg->cfg_table_dma);
7377 for (i = 0; i < IPR_NUM_HCAMS; i++) {
7378 pci_free_consistent(ioa_cfg->pdev,
7379 sizeof(struct ipr_hostrcb),
7380 ioa_cfg->hostrcb[i],
7381 ioa_cfg->hostrcb_dma[i]);
7384 ipr_free_dump(ioa_cfg);
7385 kfree(ioa_cfg->trace);
7389 * ipr_free_all_resources - Free all allocated resources for an adapter.
7390 * @ipr_cmd: ipr command struct
7392 * This function frees all allocated resources for the
7393 * specified adapter.
7398 static void ipr_free_all_resources(struct ipr_ioa_cfg *ioa_cfg)
7400 struct pci_dev *pdev = ioa_cfg->pdev;
7403 free_irq(pdev->irq, ioa_cfg);
7404 pci_disable_msi(pdev);
7405 iounmap(ioa_cfg->hdw_dma_regs);
7406 pci_release_regions(pdev);
7407 ipr_free_mem(ioa_cfg);
7408 scsi_host_put(ioa_cfg->host);
7409 pci_disable_device(pdev);
7414 * ipr_alloc_cmd_blks - Allocate command blocks for an adapter
7415 * @ioa_cfg: ioa config struct
7418 * 0 on success / -ENOMEM on allocation failure
7420 static int __devinit ipr_alloc_cmd_blks(struct ipr_ioa_cfg *ioa_cfg)
7422 struct ipr_cmnd *ipr_cmd;
7423 struct ipr_ioarcb *ioarcb;
7424 dma_addr_t dma_addr;
7427 ioa_cfg->ipr_cmd_pool = pci_pool_create (IPR_NAME, ioa_cfg->pdev,
7428 sizeof(struct ipr_cmnd), 16, 0);
7430 if (!ioa_cfg->ipr_cmd_pool)
7433 for (i = 0; i < IPR_NUM_CMD_BLKS; i++) {
7434 ipr_cmd = pci_pool_alloc (ioa_cfg->ipr_cmd_pool, GFP_KERNEL, &dma_addr);
7437 ipr_free_cmd_blks(ioa_cfg);
7441 memset(ipr_cmd, 0, sizeof(*ipr_cmd));
7442 ioa_cfg->ipr_cmnd_list[i] = ipr_cmd;
7443 ioa_cfg->ipr_cmnd_list_dma[i] = dma_addr;
7445 ioarcb = &ipr_cmd->ioarcb;
7446 ipr_cmd->dma_addr = dma_addr;
7448 ioarcb->a.ioarcb_host_pci_addr64 = cpu_to_be64(dma_addr);
7450 ioarcb->a.ioarcb_host_pci_addr = cpu_to_be32(dma_addr);
7452 ioarcb->host_response_handle = cpu_to_be32(i << 2);
7453 if (ioa_cfg->sis64) {
7454 ioarcb->u.sis64_addr_data.data_ioadl_addr =
7455 cpu_to_be64(dma_addr + offsetof(struct ipr_cmnd, i.ioadl64));
7456 ioarcb->u.sis64_addr_data.ioasa_host_pci_addr =
7457 cpu_to_be64(dma_addr + offsetof(struct ipr_cmnd, ioasa));
7459 ioarcb->write_ioadl_addr =
7460 cpu_to_be32(dma_addr + offsetof(struct ipr_cmnd, i.ioadl));
7461 ioarcb->read_ioadl_addr = ioarcb->write_ioadl_addr;
7462 ioarcb->ioasa_host_pci_addr =
7463 cpu_to_be32(dma_addr + offsetof(struct ipr_cmnd, ioasa));
7465 ioarcb->ioasa_len = cpu_to_be16(sizeof(struct ipr_ioasa));
7466 ipr_cmd->cmd_index = i;
7467 ipr_cmd->ioa_cfg = ioa_cfg;
7468 ipr_cmd->sense_buffer_dma = dma_addr +
7469 offsetof(struct ipr_cmnd, sense_buffer);
7471 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
7478 * ipr_alloc_mem - Allocate memory for an adapter
7479 * @ioa_cfg: ioa config struct
7482 * 0 on success / non-zero for error
7484 static int __devinit ipr_alloc_mem(struct ipr_ioa_cfg *ioa_cfg)
7486 struct pci_dev *pdev = ioa_cfg->pdev;
7487 int i, rc = -ENOMEM;
7490 ioa_cfg->res_entries = kzalloc(sizeof(struct ipr_resource_entry) *
7491 IPR_MAX_PHYSICAL_DEVS, GFP_KERNEL);
7493 if (!ioa_cfg->res_entries)
7496 for (i = 0; i < IPR_MAX_PHYSICAL_DEVS; i++)
7497 list_add_tail(&ioa_cfg->res_entries[i].queue, &ioa_cfg->free_res_q);
7499 ioa_cfg->vpd_cbs = pci_alloc_consistent(ioa_cfg->pdev,
7500 sizeof(struct ipr_misc_cbs),
7501 &ioa_cfg->vpd_cbs_dma);
7503 if (!ioa_cfg->vpd_cbs)
7504 goto out_free_res_entries;
7506 if (ipr_alloc_cmd_blks(ioa_cfg))
7507 goto out_free_vpd_cbs;
7509 ioa_cfg->host_rrq = pci_alloc_consistent(ioa_cfg->pdev,
7510 sizeof(u32) * IPR_NUM_CMD_BLKS,
7511 &ioa_cfg->host_rrq_dma);
7513 if (!ioa_cfg->host_rrq)
7514 goto out_ipr_free_cmd_blocks;
7516 ioa_cfg->cfg_table = pci_alloc_consistent(ioa_cfg->pdev,
7517 sizeof(struct ipr_config_table),
7518 &ioa_cfg->cfg_table_dma);
7520 if (!ioa_cfg->cfg_table)
7521 goto out_free_host_rrq;
7523 for (i = 0; i < IPR_NUM_HCAMS; i++) {
7524 ioa_cfg->hostrcb[i] = pci_alloc_consistent(ioa_cfg->pdev,
7525 sizeof(struct ipr_hostrcb),
7526 &ioa_cfg->hostrcb_dma[i]);
7528 if (!ioa_cfg->hostrcb[i])
7529 goto out_free_hostrcb_dma;
7531 ioa_cfg->hostrcb[i]->hostrcb_dma =
7532 ioa_cfg->hostrcb_dma[i] + offsetof(struct ipr_hostrcb, hcam);
7533 ioa_cfg->hostrcb[i]->ioa_cfg = ioa_cfg;
7534 list_add_tail(&ioa_cfg->hostrcb[i]->queue, &ioa_cfg->hostrcb_free_q);
7537 ioa_cfg->trace = kzalloc(sizeof(struct ipr_trace_entry) *
7538 IPR_NUM_TRACE_ENTRIES, GFP_KERNEL);
7540 if (!ioa_cfg->trace)
7541 goto out_free_hostrcb_dma;
7548 out_free_hostrcb_dma:
7550 pci_free_consistent(pdev, sizeof(struct ipr_hostrcb),
7551 ioa_cfg->hostrcb[i],
7552 ioa_cfg->hostrcb_dma[i]);
7554 pci_free_consistent(pdev, sizeof(struct ipr_config_table),
7555 ioa_cfg->cfg_table, ioa_cfg->cfg_table_dma);
7557 pci_free_consistent(pdev, sizeof(u32) * IPR_NUM_CMD_BLKS,
7558 ioa_cfg->host_rrq, ioa_cfg->host_rrq_dma);
7559 out_ipr_free_cmd_blocks:
7560 ipr_free_cmd_blks(ioa_cfg);
7562 pci_free_consistent(pdev, sizeof(struct ipr_misc_cbs),
7563 ioa_cfg->vpd_cbs, ioa_cfg->vpd_cbs_dma);
7564 out_free_res_entries:
7565 kfree(ioa_cfg->res_entries);
7570 * ipr_initialize_bus_attr - Initialize SCSI bus attributes to default values
7571 * @ioa_cfg: ioa config struct
7576 static void __devinit ipr_initialize_bus_attr(struct ipr_ioa_cfg *ioa_cfg)
7580 for (i = 0; i < IPR_MAX_NUM_BUSES; i++) {
7581 ioa_cfg->bus_attr[i].bus = i;
7582 ioa_cfg->bus_attr[i].qas_enabled = 0;
7583 ioa_cfg->bus_attr[i].bus_width = IPR_DEFAULT_BUS_WIDTH;
7584 if (ipr_max_speed < ARRAY_SIZE(ipr_max_bus_speeds))
7585 ioa_cfg->bus_attr[i].max_xfer_rate = ipr_max_bus_speeds[ipr_max_speed];
7587 ioa_cfg->bus_attr[i].max_xfer_rate = IPR_U160_SCSI_RATE;
7592 * ipr_init_ioa_cfg - Initialize IOA config struct
7593 * @ioa_cfg: ioa config struct
7594 * @host: scsi host struct
7595 * @pdev: PCI dev struct
7600 static void __devinit ipr_init_ioa_cfg(struct ipr_ioa_cfg *ioa_cfg,
7601 struct Scsi_Host *host, struct pci_dev *pdev)
7603 const struct ipr_interrupt_offsets *p;
7604 struct ipr_interrupts *t;
7607 ioa_cfg->host = host;
7608 ioa_cfg->pdev = pdev;
7609 ioa_cfg->log_level = ipr_log_level;
7610 ioa_cfg->doorbell = IPR_DOORBELL;
7611 sprintf(ioa_cfg->eye_catcher, IPR_EYECATCHER);
7612 sprintf(ioa_cfg->trace_start, IPR_TRACE_START_LABEL);
7613 sprintf(ioa_cfg->ipr_free_label, IPR_FREEQ_LABEL);
7614 sprintf(ioa_cfg->ipr_pending_label, IPR_PENDQ_LABEL);
7615 sprintf(ioa_cfg->cfg_table_start, IPR_CFG_TBL_START);
7616 sprintf(ioa_cfg->resource_table_label, IPR_RES_TABLE_LABEL);
7617 sprintf(ioa_cfg->ipr_hcam_label, IPR_HCAM_LABEL);
7618 sprintf(ioa_cfg->ipr_cmd_label, IPR_CMD_LABEL);
7620 INIT_LIST_HEAD(&ioa_cfg->free_q);
7621 INIT_LIST_HEAD(&ioa_cfg->pending_q);
7622 INIT_LIST_HEAD(&ioa_cfg->hostrcb_free_q);
7623 INIT_LIST_HEAD(&ioa_cfg->hostrcb_pending_q);
7624 INIT_LIST_HEAD(&ioa_cfg->free_res_q);
7625 INIT_LIST_HEAD(&ioa_cfg->used_res_q);
7626 INIT_WORK(&ioa_cfg->work_q, ipr_worker_thread);
7627 init_waitqueue_head(&ioa_cfg->reset_wait_q);
7628 init_waitqueue_head(&ioa_cfg->msi_wait_q);
7629 ioa_cfg->sdt_state = INACTIVE;
7630 if (ipr_enable_cache)
7631 ioa_cfg->cache_state = CACHE_ENABLED;
7633 ioa_cfg->cache_state = CACHE_DISABLED;
7635 ipr_initialize_bus_attr(ioa_cfg);
7637 host->max_id = IPR_MAX_NUM_TARGETS_PER_BUS;
7638 host->max_lun = IPR_MAX_NUM_LUNS_PER_TARGET;
7639 host->max_channel = IPR_MAX_BUS_TO_SCAN;
7640 host->unique_id = host->host_no;
7641 host->max_cmd_len = IPR_MAX_CDB_LEN;
7642 pci_set_drvdata(pdev, ioa_cfg);
7644 p = &ioa_cfg->chip_cfg->regs;
7646 base = ioa_cfg->hdw_dma_regs;
7648 t->set_interrupt_mask_reg = base + p->set_interrupt_mask_reg;
7649 t->clr_interrupt_mask_reg = base + p->clr_interrupt_mask_reg;
7650 t->sense_interrupt_mask_reg = base + p->sense_interrupt_mask_reg;
7651 t->clr_interrupt_reg = base + p->clr_interrupt_reg;
7652 t->sense_interrupt_reg = base + p->sense_interrupt_reg;
7653 t->ioarrin_reg = base + p->ioarrin_reg;
7654 t->sense_uproc_interrupt_reg = base + p->sense_uproc_interrupt_reg;
7655 t->set_uproc_interrupt_reg = base + p->set_uproc_interrupt_reg;
7656 t->clr_uproc_interrupt_reg = base + p->clr_uproc_interrupt_reg;
7660 * ipr_get_chip_info - Find adapter chip information
7661 * @dev_id: PCI device id struct
7664 * ptr to chip information on success / NULL on failure
7666 static const struct ipr_chip_t * __devinit
7667 ipr_get_chip_info(const struct pci_device_id *dev_id)
7671 for (i = 0; i < ARRAY_SIZE(ipr_chip); i++)
7672 if (ipr_chip[i].vendor == dev_id->vendor &&
7673 ipr_chip[i].device == dev_id->device)
7674 return &ipr_chip[i];
7679 * ipr_test_intr - Handle the interrupt generated in ipr_test_msi().
7680 * @pdev: PCI device struct
7682 * Description: Simply set the msi_received flag to 1 indicating that
7683 * Message Signaled Interrupts are supported.
7686 * 0 on success / non-zero on failure
7688 static irqreturn_t __devinit ipr_test_intr(int irq, void *devp)
7690 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)devp;
7691 unsigned long lock_flags = 0;
7692 irqreturn_t rc = IRQ_HANDLED;
7694 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
7696 ioa_cfg->msi_received = 1;
7697 wake_up(&ioa_cfg->msi_wait_q);
7699 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
7704 * ipr_test_msi - Test for Message Signaled Interrupt (MSI) support.
7705 * @pdev: PCI device struct
7707 * Description: The return value from pci_enable_msi() can not always be
7708 * trusted. This routine sets up and initiates a test interrupt to determine
7709 * if the interrupt is received via the ipr_test_intr() service routine.
7710 * If the tests fails, the driver will fall back to LSI.
7713 * 0 on success / non-zero on failure
7715 static int __devinit ipr_test_msi(struct ipr_ioa_cfg *ioa_cfg,
7716 struct pci_dev *pdev)
7719 volatile u32 int_reg;
7720 unsigned long lock_flags = 0;
7724 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
7725 init_waitqueue_head(&ioa_cfg->msi_wait_q);
7726 ioa_cfg->msi_received = 0;
7727 ipr_mask_and_clear_interrupts(ioa_cfg, ~IPR_PCII_IOA_TRANS_TO_OPER);
7728 writel(IPR_PCII_IO_DEBUG_ACKNOWLEDGE, ioa_cfg->regs.clr_interrupt_mask_reg);
7729 int_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg);
7730 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
7732 rc = request_irq(pdev->irq, ipr_test_intr, 0, IPR_NAME, ioa_cfg);
7734 dev_err(&pdev->dev, "Can not assign irq %d\n", pdev->irq);
7736 } else if (ipr_debug)
7737 dev_info(&pdev->dev, "IRQ assigned: %d\n", pdev->irq);
7739 writel(IPR_PCII_IO_DEBUG_ACKNOWLEDGE, ioa_cfg->regs.sense_interrupt_reg);
7740 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg);
7741 wait_event_timeout(ioa_cfg->msi_wait_q, ioa_cfg->msi_received, HZ);
7742 ipr_mask_and_clear_interrupts(ioa_cfg, ~IPR_PCII_IOA_TRANS_TO_OPER);
7744 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
7745 if (!ioa_cfg->msi_received) {
7746 /* MSI test failed */
7747 dev_info(&pdev->dev, "MSI test failed. Falling back to LSI.\n");
7749 } else if (ipr_debug)
7750 dev_info(&pdev->dev, "MSI test succeeded.\n");
7752 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
7754 free_irq(pdev->irq, ioa_cfg);
7762 * ipr_probe_ioa - Allocates memory and does first stage of initialization
7763 * @pdev: PCI device struct
7764 * @dev_id: PCI device id struct
7767 * 0 on success / non-zero on failure
7769 static int __devinit ipr_probe_ioa(struct pci_dev *pdev,
7770 const struct pci_device_id *dev_id)
7772 struct ipr_ioa_cfg *ioa_cfg;
7773 struct Scsi_Host *host;
7774 unsigned long ipr_regs_pci;
7775 void __iomem *ipr_regs;
7776 int rc = PCIBIOS_SUCCESSFUL;
7777 volatile u32 mask, uproc, interrupts;
7781 if ((rc = pci_enable_device(pdev))) {
7782 dev_err(&pdev->dev, "Cannot enable adapter\n");
7786 dev_info(&pdev->dev, "Found IOA with IRQ: %d\n", pdev->irq);
7788 host = scsi_host_alloc(&driver_template, sizeof(*ioa_cfg));
7791 dev_err(&pdev->dev, "call to scsi_host_alloc failed!\n");
7796 ioa_cfg = (struct ipr_ioa_cfg *)host->hostdata;
7797 memset(ioa_cfg, 0, sizeof(struct ipr_ioa_cfg));
7798 ata_host_init(&ioa_cfg->ata_host, &pdev->dev,
7799 sata_port_info.flags, &ipr_sata_ops);
7801 ioa_cfg->ipr_chip = ipr_get_chip_info(dev_id);
7803 if (!ioa_cfg->ipr_chip) {
7804 dev_err(&pdev->dev, "Unknown adapter chipset 0x%04X 0x%04X\n",
7805 dev_id->vendor, dev_id->device);
7806 goto out_scsi_host_put;
7809 /* set SIS 32 or SIS 64 */
7810 ioa_cfg->sis64 = ioa_cfg->ipr_chip->sis_type == IPR_SIS64 ? 1 : 0;
7811 ioa_cfg->chip_cfg = ioa_cfg->ipr_chip->cfg;
7813 if (ipr_transop_timeout)
7814 ioa_cfg->transop_timeout = ipr_transop_timeout;
7815 else if (dev_id->driver_data & IPR_USE_LONG_TRANSOP_TIMEOUT)
7816 ioa_cfg->transop_timeout = IPR_LONG_OPERATIONAL_TIMEOUT;
7818 ioa_cfg->transop_timeout = IPR_OPERATIONAL_TIMEOUT;
7820 ioa_cfg->revid = pdev->revision;
7822 ipr_regs_pci = pci_resource_start(pdev, 0);
7824 rc = pci_request_regions(pdev, IPR_NAME);
7827 "Couldn't register memory range of registers\n");
7828 goto out_scsi_host_put;
7831 ipr_regs = pci_ioremap_bar(pdev, 0);
7835 "Couldn't map memory range of registers\n");
7837 goto out_release_regions;
7840 ioa_cfg->hdw_dma_regs = ipr_regs;
7841 ioa_cfg->hdw_dma_regs_pci = ipr_regs_pci;
7842 ioa_cfg->ioa_mailbox = ioa_cfg->chip_cfg->mailbox + ipr_regs;
7844 ipr_init_ioa_cfg(ioa_cfg, host, pdev);
7846 pci_set_master(pdev);
7848 if (ioa_cfg->sis64) {
7849 rc = pci_set_dma_mask(pdev, DMA_BIT_MASK(64));
7851 dev_dbg(&pdev->dev, "Failed to set 64 bit PCI DMA mask\n");
7852 rc = pci_set_dma_mask(pdev, DMA_BIT_MASK(32));
7856 rc = pci_set_dma_mask(pdev, DMA_BIT_MASK(32));
7859 dev_err(&pdev->dev, "Failed to set PCI DMA mask\n");
7863 rc = pci_write_config_byte(pdev, PCI_CACHE_LINE_SIZE,
7864 ioa_cfg->chip_cfg->cache_line_size);
7866 if (rc != PCIBIOS_SUCCESSFUL) {
7867 dev_err(&pdev->dev, "Write of cache line size failed\n");
7872 /* Enable MSI style interrupts if they are supported. */
7873 if (ioa_cfg->ipr_chip->intr_type == IPR_USE_MSI && !pci_enable_msi(pdev)) {
7874 rc = ipr_test_msi(ioa_cfg, pdev);
7875 if (rc == -EOPNOTSUPP)
7876 pci_disable_msi(pdev);
7878 goto out_msi_disable;
7880 dev_info(&pdev->dev, "MSI enabled with IRQ: %d\n", pdev->irq);
7881 } else if (ipr_debug)
7882 dev_info(&pdev->dev, "Cannot enable MSI.\n");
7884 /* Save away PCI config space for use following IOA reset */
7885 rc = pci_save_state(pdev);
7887 if (rc != PCIBIOS_SUCCESSFUL) {
7888 dev_err(&pdev->dev, "Failed to save PCI config space\n");
7893 if ((rc = ipr_save_pcix_cmd_reg(ioa_cfg)))
7896 if ((rc = ipr_set_pcix_cmd_reg(ioa_cfg)))
7899 rc = ipr_alloc_mem(ioa_cfg);
7902 "Couldn't allocate enough memory for device driver!\n");
7907 * If HRRQ updated interrupt is not masked, or reset alert is set,
7908 * the card is in an unknown state and needs a hard reset
7910 mask = readl(ioa_cfg->regs.sense_interrupt_mask_reg);
7911 interrupts = readl(ioa_cfg->regs.sense_interrupt_reg);
7912 uproc = readl(ioa_cfg->regs.sense_uproc_interrupt_reg);
7913 if ((mask & IPR_PCII_HRRQ_UPDATED) == 0 || (uproc & IPR_UPROCI_RESET_ALERT))
7914 ioa_cfg->needs_hard_reset = 1;
7915 if (interrupts & IPR_PCII_ERROR_INTERRUPTS)
7916 ioa_cfg->needs_hard_reset = 1;
7917 if (interrupts & IPR_PCII_IOA_UNIT_CHECKED)
7918 ioa_cfg->ioa_unit_checked = 1;
7920 ipr_mask_and_clear_interrupts(ioa_cfg, ~IPR_PCII_IOA_TRANS_TO_OPER);
7921 rc = request_irq(pdev->irq, ipr_isr,
7922 ioa_cfg->msi_received ? 0 : IRQF_SHARED,
7926 dev_err(&pdev->dev, "Couldn't register IRQ %d! rc=%d\n",
7931 if ((dev_id->driver_data & IPR_USE_PCI_WARM_RESET) ||
7932 (dev_id->device == PCI_DEVICE_ID_IBM_OBSIDIAN_E && !ioa_cfg->revid)) {
7933 ioa_cfg->needs_warm_reset = 1;
7934 ioa_cfg->reset = ipr_reset_slot_reset;
7936 ioa_cfg->reset = ipr_reset_start_bist;
7938 spin_lock(&ipr_driver_lock);
7939 list_add_tail(&ioa_cfg->queue, &ipr_ioa_head);
7940 spin_unlock(&ipr_driver_lock);
7947 ipr_free_mem(ioa_cfg);
7951 pci_disable_msi(pdev);
7952 out_release_regions:
7953 pci_release_regions(pdev);
7955 scsi_host_put(host);
7957 pci_disable_device(pdev);
7962 * ipr_scan_vsets - Scans for VSET devices
7963 * @ioa_cfg: ioa config struct
7965 * Description: Since the VSET resources do not follow SAM in that we can have
7966 * sparse LUNs with no LUN 0, we have to scan for these ourselves.
7971 static void ipr_scan_vsets(struct ipr_ioa_cfg *ioa_cfg)
7975 for (target = 0; target < IPR_MAX_NUM_TARGETS_PER_BUS; target++)
7976 for (lun = 0; lun < IPR_MAX_NUM_VSET_LUNS_PER_TARGET; lun++ )
7977 scsi_add_device(ioa_cfg->host, IPR_VSET_BUS, target, lun);
7981 * ipr_initiate_ioa_bringdown - Bring down an adapter
7982 * @ioa_cfg: ioa config struct
7983 * @shutdown_type: shutdown type
7985 * Description: This function will initiate bringing down the adapter.
7986 * This consists of issuing an IOA shutdown to the adapter
7987 * to flush the cache, and running BIST.
7988 * If the caller needs to wait on the completion of the reset,
7989 * the caller must sleep on the reset_wait_q.
7994 static void ipr_initiate_ioa_bringdown(struct ipr_ioa_cfg *ioa_cfg,
7995 enum ipr_shutdown_type shutdown_type)
7998 if (ioa_cfg->sdt_state == WAIT_FOR_DUMP)
7999 ioa_cfg->sdt_state = ABORT_DUMP;
8000 ioa_cfg->reset_retries = 0;
8001 ioa_cfg->in_ioa_bringdown = 1;
8002 ipr_initiate_ioa_reset(ioa_cfg, shutdown_type);
8007 * __ipr_remove - Remove a single adapter
8008 * @pdev: pci device struct
8010 * Adapter hot plug remove entry point.
8015 static void __ipr_remove(struct pci_dev *pdev)
8017 unsigned long host_lock_flags = 0;
8018 struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev);
8021 spin_lock_irqsave(ioa_cfg->host->host_lock, host_lock_flags);
8022 while(ioa_cfg->in_reset_reload) {
8023 spin_unlock_irqrestore(ioa_cfg->host->host_lock, host_lock_flags);
8024 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
8025 spin_lock_irqsave(ioa_cfg->host->host_lock, host_lock_flags);
8028 ipr_initiate_ioa_bringdown(ioa_cfg, IPR_SHUTDOWN_NORMAL);
8030 spin_unlock_irqrestore(ioa_cfg->host->host_lock, host_lock_flags);
8031 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
8032 flush_scheduled_work();
8033 spin_lock_irqsave(ioa_cfg->host->host_lock, host_lock_flags);
8035 spin_lock(&ipr_driver_lock);
8036 list_del(&ioa_cfg->queue);
8037 spin_unlock(&ipr_driver_lock);
8039 if (ioa_cfg->sdt_state == ABORT_DUMP)
8040 ioa_cfg->sdt_state = WAIT_FOR_DUMP;
8041 spin_unlock_irqrestore(ioa_cfg->host->host_lock, host_lock_flags);
8043 ipr_free_all_resources(ioa_cfg);
8049 * ipr_remove - IOA hot plug remove entry point
8050 * @pdev: pci device struct
8052 * Adapter hot plug remove entry point.
8057 static void __devexit ipr_remove(struct pci_dev *pdev)
8059 struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev);
8063 ipr_remove_trace_file(&ioa_cfg->host->shost_dev.kobj,
8065 ipr_remove_dump_file(&ioa_cfg->host->shost_dev.kobj,
8067 scsi_remove_host(ioa_cfg->host);
8075 * ipr_probe - Adapter hot plug add entry point
8078 * 0 on success / non-zero on failure
8080 static int __devinit ipr_probe(struct pci_dev *pdev,
8081 const struct pci_device_id *dev_id)
8083 struct ipr_ioa_cfg *ioa_cfg;
8086 rc = ipr_probe_ioa(pdev, dev_id);
8091 ioa_cfg = pci_get_drvdata(pdev);
8092 rc = ipr_probe_ioa_part2(ioa_cfg);
8099 rc = scsi_add_host(ioa_cfg->host, &pdev->dev);
8106 rc = ipr_create_trace_file(&ioa_cfg->host->shost_dev.kobj,
8110 scsi_remove_host(ioa_cfg->host);
8115 rc = ipr_create_dump_file(&ioa_cfg->host->shost_dev.kobj,
8119 ipr_remove_trace_file(&ioa_cfg->host->shost_dev.kobj,
8121 scsi_remove_host(ioa_cfg->host);
8126 scsi_scan_host(ioa_cfg->host);
8127 ipr_scan_vsets(ioa_cfg);
8128 scsi_add_device(ioa_cfg->host, IPR_IOA_BUS, IPR_IOA_TARGET, IPR_IOA_LUN);
8129 ioa_cfg->allow_ml_add_del = 1;
8130 ioa_cfg->host->max_channel = IPR_VSET_BUS;
8131 schedule_work(&ioa_cfg->work_q);
8136 * ipr_shutdown - Shutdown handler.
8137 * @pdev: pci device struct
8139 * This function is invoked upon system shutdown/reboot. It will issue
8140 * an adapter shutdown to the adapter to flush the write cache.
8145 static void ipr_shutdown(struct pci_dev *pdev)
8147 struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev);
8148 unsigned long lock_flags = 0;
8150 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
8151 while(ioa_cfg->in_reset_reload) {
8152 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
8153 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
8154 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
8157 ipr_initiate_ioa_bringdown(ioa_cfg, IPR_SHUTDOWN_NORMAL);
8158 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
8159 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
8162 static struct pci_device_id ipr_pci_table[] __devinitdata = {
8163 { PCI_VENDOR_ID_MYLEX, PCI_DEVICE_ID_IBM_GEMSTONE,
8164 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_5702, 0, 0, 0 },
8165 { PCI_VENDOR_ID_MYLEX, PCI_DEVICE_ID_IBM_GEMSTONE,
8166 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_5703, 0, 0, 0 },
8167 { PCI_VENDOR_ID_MYLEX, PCI_DEVICE_ID_IBM_GEMSTONE,
8168 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_573D, 0, 0, 0 },
8169 { PCI_VENDOR_ID_MYLEX, PCI_DEVICE_ID_IBM_GEMSTONE,
8170 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_573E, 0, 0, 0 },
8171 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CITRINE,
8172 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_571B, 0, 0, 0 },
8173 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CITRINE,
8174 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572E, 0, 0, 0 },
8175 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CITRINE,
8176 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_571A, 0, 0, 0 },
8177 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CITRINE,
8178 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_575B, 0, 0,
8179 IPR_USE_LONG_TRANSOP_TIMEOUT },
8180 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_OBSIDIAN,
8181 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572A, 0, 0, 0 },
8182 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_OBSIDIAN,
8183 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572B, 0, 0,
8184 IPR_USE_LONG_TRANSOP_TIMEOUT },
8185 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_OBSIDIAN,
8186 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_575C, 0, 0,
8187 IPR_USE_LONG_TRANSOP_TIMEOUT },
8188 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN,
8189 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572A, 0, 0, 0 },
8190 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN,
8191 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572B, 0, 0,
8192 IPR_USE_LONG_TRANSOP_TIMEOUT},
8193 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN,
8194 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_575C, 0, 0,
8195 IPR_USE_LONG_TRANSOP_TIMEOUT },
8196 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN_E,
8197 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_574E, 0, 0,
8198 IPR_USE_LONG_TRANSOP_TIMEOUT },
8199 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN_E,
8200 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_575D, 0, 0,
8201 IPR_USE_LONG_TRANSOP_TIMEOUT },
8202 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN_E,
8203 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57B3, 0, 0, 0 },
8204 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN_E,
8205 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57B7, 0, 0,
8206 IPR_USE_LONG_TRANSOP_TIMEOUT | IPR_USE_PCI_WARM_RESET },
8207 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_SNIPE,
8208 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_2780, 0, 0, 0 },
8209 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_SCAMP,
8210 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_571E, 0, 0, 0 },
8211 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_SCAMP,
8212 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_571F, 0, 0,
8213 IPR_USE_LONG_TRANSOP_TIMEOUT },
8214 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_SCAMP,
8215 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572F, 0, 0,
8216 IPR_USE_LONG_TRANSOP_TIMEOUT },
8217 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_SCAMP_E,
8218 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_574D, 0, 0,
8219 IPR_USE_LONG_TRANSOP_TIMEOUT },
8222 MODULE_DEVICE_TABLE(pci, ipr_pci_table);
8224 static struct pci_error_handlers ipr_err_handler = {
8225 .error_detected = ipr_pci_error_detected,
8226 .slot_reset = ipr_pci_slot_reset,
8229 static struct pci_driver ipr_driver = {
8231 .id_table = ipr_pci_table,
8233 .remove = __devexit_p(ipr_remove),
8234 .shutdown = ipr_shutdown,
8235 .err_handler = &ipr_err_handler,
8239 * ipr_init - Module entry point
8242 * 0 on success / negative value on failure
8244 static int __init ipr_init(void)
8246 ipr_info("IBM Power RAID SCSI Device Driver version: %s %s\n",
8247 IPR_DRIVER_VERSION, IPR_DRIVER_DATE);
8249 return pci_register_driver(&ipr_driver);
8253 * ipr_exit - Module unload
8255 * Module unload entry point.
8260 static void __exit ipr_exit(void)
8262 pci_unregister_driver(&ipr_driver);
8265 module_init(ipr_init);
8266 module_exit(ipr_exit);