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 static const struct ipr_chip_t ipr_chip[] = {
134 { PCI_VENDOR_ID_MYLEX, PCI_DEVICE_ID_IBM_GEMSTONE, &ipr_chip_cfg[0] },
135 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CITRINE, &ipr_chip_cfg[0] },
136 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_OBSIDIAN, &ipr_chip_cfg[0] },
137 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN, &ipr_chip_cfg[0] },
138 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN_E, &ipr_chip_cfg[0] },
139 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_SNIPE, &ipr_chip_cfg[1] },
140 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_SCAMP, &ipr_chip_cfg[1] }
143 static int ipr_max_bus_speeds [] = {
144 IPR_80MBs_SCSI_RATE, IPR_U160_SCSI_RATE, IPR_U320_SCSI_RATE
147 MODULE_AUTHOR("Brian King <brking@us.ibm.com>");
148 MODULE_DESCRIPTION("IBM Power RAID SCSI Adapter Driver");
149 module_param_named(max_speed, ipr_max_speed, uint, 0);
150 MODULE_PARM_DESC(max_speed, "Maximum bus speed (0-2). Default: 1=U160. Speeds: 0=80 MB/s, 1=U160, 2=U320");
151 module_param_named(log_level, ipr_log_level, uint, 0);
152 MODULE_PARM_DESC(log_level, "Set to 0 - 4 for increasing verbosity of device driver");
153 module_param_named(testmode, ipr_testmode, int, 0);
154 MODULE_PARM_DESC(testmode, "DANGEROUS!!! Allows unsupported configurations");
155 module_param_named(fastfail, ipr_fastfail, int, 0);
156 MODULE_PARM_DESC(fastfail, "Reduce timeouts and retries");
157 module_param_named(transop_timeout, ipr_transop_timeout, int, 0);
158 MODULE_PARM_DESC(transop_timeout, "Time in seconds to wait for adapter to come operational (default: 300)");
159 module_param_named(enable_cache, ipr_enable_cache, int, 0);
160 MODULE_PARM_DESC(enable_cache, "Enable adapter's non-volatile write cache (default: 1)");
161 module_param_named(debug, ipr_debug, int, 0);
162 MODULE_PARM_DESC(debug, "Enable device driver debugging logging. Set to 1 to enable. (default: 0)");
163 module_param_named(dual_ioa_raid, ipr_dual_ioa_raid, int, 0);
164 MODULE_PARM_DESC(dual_ioa_raid, "Enable dual adapter RAID support. Set to 1 to enable. (default: 1)");
165 MODULE_LICENSE("GPL");
166 MODULE_VERSION(IPR_DRIVER_VERSION);
168 /* A constant array of IOASCs/URCs/Error Messages */
170 struct ipr_error_table_t ipr_error_table[] = {
171 {0x00000000, 1, IPR_DEFAULT_LOG_LEVEL,
172 "8155: An unknown error was received"},
174 "Soft underlength error"},
176 "Command to be cancelled not found"},
178 "Qualified success"},
179 {0x01080000, 1, IPR_DEFAULT_LOG_LEVEL,
180 "FFFE: Soft device bus error recovered by the IOA"},
181 {0x01088100, 0, IPR_DEFAULT_LOG_LEVEL,
182 "4101: Soft device bus fabric error"},
183 {0x01170600, 0, IPR_DEFAULT_LOG_LEVEL,
184 "FFF9: Device sector reassign successful"},
185 {0x01170900, 0, IPR_DEFAULT_LOG_LEVEL,
186 "FFF7: Media error recovered by device rewrite procedures"},
187 {0x01180200, 0, IPR_DEFAULT_LOG_LEVEL,
188 "7001: IOA sector reassignment successful"},
189 {0x01180500, 0, IPR_DEFAULT_LOG_LEVEL,
190 "FFF9: Soft media error. Sector reassignment recommended"},
191 {0x01180600, 0, IPR_DEFAULT_LOG_LEVEL,
192 "FFF7: Media error recovered by IOA rewrite procedures"},
193 {0x01418000, 0, IPR_DEFAULT_LOG_LEVEL,
194 "FF3D: Soft PCI bus error recovered by the IOA"},
195 {0x01440000, 1, IPR_DEFAULT_LOG_LEVEL,
196 "FFF6: Device hardware error recovered by the IOA"},
197 {0x01448100, 0, IPR_DEFAULT_LOG_LEVEL,
198 "FFF6: Device hardware error recovered by the device"},
199 {0x01448200, 1, IPR_DEFAULT_LOG_LEVEL,
200 "FF3D: Soft IOA error recovered by the IOA"},
201 {0x01448300, 0, IPR_DEFAULT_LOG_LEVEL,
202 "FFFA: Undefined device response recovered by the IOA"},
203 {0x014A0000, 1, IPR_DEFAULT_LOG_LEVEL,
204 "FFF6: Device bus error, message or command phase"},
205 {0x014A8000, 0, IPR_DEFAULT_LOG_LEVEL,
206 "FFFE: Task Management Function failed"},
207 {0x015D0000, 0, IPR_DEFAULT_LOG_LEVEL,
208 "FFF6: Failure prediction threshold exceeded"},
209 {0x015D9200, 0, IPR_DEFAULT_LOG_LEVEL,
210 "8009: Impending cache battery pack failure"},
212 "34FF: Disk device format in progress"},
213 {0x02048000, 0, IPR_DEFAULT_LOG_LEVEL,
214 "9070: IOA requested reset"},
216 "Synchronization required"},
218 "No ready, IOA shutdown"},
220 "Not ready, IOA has been shutdown"},
221 {0x02670100, 0, IPR_DEFAULT_LOG_LEVEL,
222 "3020: Storage subsystem configuration error"},
224 "FFF5: Medium error, data unreadable, recommend reassign"},
226 "7000: Medium error, data unreadable, do not reassign"},
227 {0x03310000, 0, IPR_DEFAULT_LOG_LEVEL,
228 "FFF3: Disk media format bad"},
229 {0x04050000, 0, IPR_DEFAULT_LOG_LEVEL,
230 "3002: Addressed device failed to respond to selection"},
231 {0x04080000, 1, IPR_DEFAULT_LOG_LEVEL,
232 "3100: Device bus error"},
233 {0x04080100, 0, IPR_DEFAULT_LOG_LEVEL,
234 "3109: IOA timed out a device command"},
236 "3120: SCSI bus is not operational"},
237 {0x04088100, 0, IPR_DEFAULT_LOG_LEVEL,
238 "4100: Hard device bus fabric error"},
239 {0x04118000, 0, IPR_DEFAULT_LOG_LEVEL,
240 "9000: IOA reserved area data check"},
241 {0x04118100, 0, IPR_DEFAULT_LOG_LEVEL,
242 "9001: IOA reserved area invalid data pattern"},
243 {0x04118200, 0, IPR_DEFAULT_LOG_LEVEL,
244 "9002: IOA reserved area LRC error"},
245 {0x04320000, 0, IPR_DEFAULT_LOG_LEVEL,
246 "102E: Out of alternate sectors for disk storage"},
247 {0x04330000, 1, IPR_DEFAULT_LOG_LEVEL,
248 "FFF4: Data transfer underlength error"},
249 {0x04338000, 1, IPR_DEFAULT_LOG_LEVEL,
250 "FFF4: Data transfer overlength error"},
251 {0x043E0100, 0, IPR_DEFAULT_LOG_LEVEL,
252 "3400: Logical unit failure"},
253 {0x04408500, 0, IPR_DEFAULT_LOG_LEVEL,
254 "FFF4: Device microcode is corrupt"},
255 {0x04418000, 1, IPR_DEFAULT_LOG_LEVEL,
256 "8150: PCI bus error"},
258 "Unsupported device bus message received"},
259 {0x04440000, 1, IPR_DEFAULT_LOG_LEVEL,
260 "FFF4: Disk device problem"},
261 {0x04448200, 1, IPR_DEFAULT_LOG_LEVEL,
262 "8150: Permanent IOA failure"},
263 {0x04448300, 0, IPR_DEFAULT_LOG_LEVEL,
264 "3010: Disk device returned wrong response to IOA"},
265 {0x04448400, 0, IPR_DEFAULT_LOG_LEVEL,
266 "8151: IOA microcode error"},
268 "Device bus status error"},
269 {0x04448600, 0, IPR_DEFAULT_LOG_LEVEL,
270 "8157: IOA error requiring IOA reset to recover"},
272 "ATA device status error"},
274 "Message reject received from the device"},
275 {0x04449200, 0, IPR_DEFAULT_LOG_LEVEL,
276 "8008: A permanent cache battery pack failure occurred"},
277 {0x0444A000, 0, IPR_DEFAULT_LOG_LEVEL,
278 "9090: Disk unit has been modified after the last known status"},
279 {0x0444A200, 0, IPR_DEFAULT_LOG_LEVEL,
280 "9081: IOA detected device error"},
281 {0x0444A300, 0, IPR_DEFAULT_LOG_LEVEL,
282 "9082: IOA detected device error"},
283 {0x044A0000, 1, IPR_DEFAULT_LOG_LEVEL,
284 "3110: Device bus error, message or command phase"},
285 {0x044A8000, 1, IPR_DEFAULT_LOG_LEVEL,
286 "3110: SAS Command / Task Management Function failed"},
287 {0x04670400, 0, IPR_DEFAULT_LOG_LEVEL,
288 "9091: Incorrect hardware configuration change has been detected"},
289 {0x04678000, 0, IPR_DEFAULT_LOG_LEVEL,
290 "9073: Invalid multi-adapter configuration"},
291 {0x04678100, 0, IPR_DEFAULT_LOG_LEVEL,
292 "4010: Incorrect connection between cascaded expanders"},
293 {0x04678200, 0, IPR_DEFAULT_LOG_LEVEL,
294 "4020: Connections exceed IOA design limits"},
295 {0x04678300, 0, IPR_DEFAULT_LOG_LEVEL,
296 "4030: Incorrect multipath connection"},
297 {0x04679000, 0, IPR_DEFAULT_LOG_LEVEL,
298 "4110: Unsupported enclosure function"},
299 {0x046E0000, 0, IPR_DEFAULT_LOG_LEVEL,
300 "FFF4: Command to logical unit failed"},
302 "Illegal request, invalid request type or request packet"},
304 "Illegal request, invalid resource handle"},
306 "Illegal request, commands not allowed to this device"},
308 "Illegal request, command not allowed to a secondary adapter"},
310 "Illegal request, invalid field in parameter list"},
312 "Illegal request, parameter not supported"},
314 "Illegal request, parameter value invalid"},
316 "Illegal request, command sequence error"},
318 "Illegal request, dual adapter support not enabled"},
319 {0x06040500, 0, IPR_DEFAULT_LOG_LEVEL,
320 "9031: Array protection temporarily suspended, protection resuming"},
321 {0x06040600, 0, IPR_DEFAULT_LOG_LEVEL,
322 "9040: Array protection temporarily suspended, protection resuming"},
323 {0x06288000, 0, IPR_DEFAULT_LOG_LEVEL,
324 "3140: Device bus not ready to ready transition"},
325 {0x06290000, 0, IPR_DEFAULT_LOG_LEVEL,
326 "FFFB: SCSI bus was reset"},
328 "FFFE: SCSI bus transition to single ended"},
330 "FFFE: SCSI bus transition to LVD"},
331 {0x06298000, 0, IPR_DEFAULT_LOG_LEVEL,
332 "FFFB: SCSI bus was reset by another initiator"},
333 {0x063F0300, 0, IPR_DEFAULT_LOG_LEVEL,
334 "3029: A device replacement has occurred"},
335 {0x064C8000, 0, IPR_DEFAULT_LOG_LEVEL,
336 "9051: IOA cache data exists for a missing or failed device"},
337 {0x064C8100, 0, IPR_DEFAULT_LOG_LEVEL,
338 "9055: Auxiliary cache IOA contains cache data needed by the primary IOA"},
339 {0x06670100, 0, IPR_DEFAULT_LOG_LEVEL,
340 "9025: Disk unit is not supported at its physical location"},
341 {0x06670600, 0, IPR_DEFAULT_LOG_LEVEL,
342 "3020: IOA detected a SCSI bus configuration error"},
343 {0x06678000, 0, IPR_DEFAULT_LOG_LEVEL,
344 "3150: SCSI bus configuration error"},
345 {0x06678100, 0, IPR_DEFAULT_LOG_LEVEL,
346 "9074: Asymmetric advanced function disk configuration"},
347 {0x06678300, 0, IPR_DEFAULT_LOG_LEVEL,
348 "4040: Incomplete multipath connection between IOA and enclosure"},
349 {0x06678400, 0, IPR_DEFAULT_LOG_LEVEL,
350 "4041: Incomplete multipath connection between enclosure and device"},
351 {0x06678500, 0, IPR_DEFAULT_LOG_LEVEL,
352 "9075: Incomplete multipath connection between IOA and remote IOA"},
353 {0x06678600, 0, IPR_DEFAULT_LOG_LEVEL,
354 "9076: Configuration error, missing remote IOA"},
355 {0x06679100, 0, IPR_DEFAULT_LOG_LEVEL,
356 "4050: Enclosure does not support a required multipath function"},
357 {0x06690200, 0, IPR_DEFAULT_LOG_LEVEL,
358 "9041: Array protection temporarily suspended"},
359 {0x06698200, 0, IPR_DEFAULT_LOG_LEVEL,
360 "9042: Corrupt array parity detected on specified device"},
361 {0x066B0200, 0, IPR_DEFAULT_LOG_LEVEL,
362 "9030: Array no longer protected due to missing or failed disk unit"},
363 {0x066B8000, 0, IPR_DEFAULT_LOG_LEVEL,
364 "9071: Link operational transition"},
365 {0x066B8100, 0, IPR_DEFAULT_LOG_LEVEL,
366 "9072: Link not operational transition"},
367 {0x066B8200, 0, IPR_DEFAULT_LOG_LEVEL,
368 "9032: Array exposed but still protected"},
369 {0x066B8300, 0, IPR_DEFAULT_LOG_LEVEL + 1,
370 "70DD: Device forced failed by disrupt device command"},
371 {0x066B9100, 0, IPR_DEFAULT_LOG_LEVEL,
372 "4061: Multipath redundancy level got better"},
373 {0x066B9200, 0, IPR_DEFAULT_LOG_LEVEL,
374 "4060: Multipath redundancy level got worse"},
376 "Failure due to other device"},
377 {0x07278000, 0, IPR_DEFAULT_LOG_LEVEL,
378 "9008: IOA does not support functions expected by devices"},
379 {0x07278100, 0, IPR_DEFAULT_LOG_LEVEL,
380 "9010: Cache data associated with attached devices cannot be found"},
381 {0x07278200, 0, IPR_DEFAULT_LOG_LEVEL,
382 "9011: Cache data belongs to devices other than those attached"},
383 {0x07278400, 0, IPR_DEFAULT_LOG_LEVEL,
384 "9020: Array missing 2 or more devices with only 1 device present"},
385 {0x07278500, 0, IPR_DEFAULT_LOG_LEVEL,
386 "9021: Array missing 2 or more devices with 2 or more devices present"},
387 {0x07278600, 0, IPR_DEFAULT_LOG_LEVEL,
388 "9022: Exposed array is missing a required device"},
389 {0x07278700, 0, IPR_DEFAULT_LOG_LEVEL,
390 "9023: Array member(s) not at required physical locations"},
391 {0x07278800, 0, IPR_DEFAULT_LOG_LEVEL,
392 "9024: Array not functional due to present hardware configuration"},
393 {0x07278900, 0, IPR_DEFAULT_LOG_LEVEL,
394 "9026: Array not functional due to present hardware configuration"},
395 {0x07278A00, 0, IPR_DEFAULT_LOG_LEVEL,
396 "9027: Array is missing a device and parity is out of sync"},
397 {0x07278B00, 0, IPR_DEFAULT_LOG_LEVEL,
398 "9028: Maximum number of arrays already exist"},
399 {0x07278C00, 0, IPR_DEFAULT_LOG_LEVEL,
400 "9050: Required cache data cannot be located for a disk unit"},
401 {0x07278D00, 0, IPR_DEFAULT_LOG_LEVEL,
402 "9052: Cache data exists for a device that has been modified"},
403 {0x07278F00, 0, IPR_DEFAULT_LOG_LEVEL,
404 "9054: IOA resources not available due to previous problems"},
405 {0x07279100, 0, IPR_DEFAULT_LOG_LEVEL,
406 "9092: Disk unit requires initialization before use"},
407 {0x07279200, 0, IPR_DEFAULT_LOG_LEVEL,
408 "9029: Incorrect hardware configuration change has been detected"},
409 {0x07279600, 0, IPR_DEFAULT_LOG_LEVEL,
410 "9060: One or more disk pairs are missing from an array"},
411 {0x07279700, 0, IPR_DEFAULT_LOG_LEVEL,
412 "9061: One or more disks are missing from an array"},
413 {0x07279800, 0, IPR_DEFAULT_LOG_LEVEL,
414 "9062: One or more disks are missing from an array"},
415 {0x07279900, 0, IPR_DEFAULT_LOG_LEVEL,
416 "9063: Maximum number of functional arrays has been exceeded"},
418 "Aborted command, invalid descriptor"},
420 "Command terminated by host"}
423 static const struct ipr_ses_table_entry ipr_ses_table[] = {
424 { "2104-DL1 ", "XXXXXXXXXXXXXXXX", 80 },
425 { "2104-TL1 ", "XXXXXXXXXXXXXXXX", 80 },
426 { "HSBP07M P U2SCSI", "XXXXXXXXXXXXXXXX", 80 }, /* Hidive 7 slot */
427 { "HSBP05M P U2SCSI", "XXXXXXXXXXXXXXXX", 80 }, /* Hidive 5 slot */
428 { "HSBP05M S U2SCSI", "XXXXXXXXXXXXXXXX", 80 }, /* Bowtie */
429 { "HSBP06E ASU2SCSI", "XXXXXXXXXXXXXXXX", 80 }, /* MartinFenning */
430 { "2104-DU3 ", "XXXXXXXXXXXXXXXX", 160 },
431 { "2104-TU3 ", "XXXXXXXXXXXXXXXX", 160 },
432 { "HSBP04C RSU2SCSI", "XXXXXXX*XXXXXXXX", 160 },
433 { "HSBP06E RSU2SCSI", "XXXXXXX*XXXXXXXX", 160 },
434 { "St V1S2 ", "XXXXXXXXXXXXXXXX", 160 },
435 { "HSBPD4M PU3SCSI", "XXXXXXX*XXXXXXXX", 160 },
436 { "VSBPD1H U3SCSI", "XXXXXXX*XXXXXXXX", 160 }
440 * Function Prototypes
442 static int ipr_reset_alert(struct ipr_cmnd *);
443 static void ipr_process_ccn(struct ipr_cmnd *);
444 static void ipr_process_error(struct ipr_cmnd *);
445 static void ipr_reset_ioa_job(struct ipr_cmnd *);
446 static void ipr_initiate_ioa_reset(struct ipr_ioa_cfg *,
447 enum ipr_shutdown_type);
449 #ifdef CONFIG_SCSI_IPR_TRACE
451 * ipr_trc_hook - Add a trace entry to the driver trace
452 * @ipr_cmd: ipr command struct
454 * @add_data: additional data
459 static void ipr_trc_hook(struct ipr_cmnd *ipr_cmd,
460 u8 type, u32 add_data)
462 struct ipr_trace_entry *trace_entry;
463 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
465 trace_entry = &ioa_cfg->trace[ioa_cfg->trace_index++];
466 trace_entry->time = jiffies;
467 trace_entry->op_code = ipr_cmd->ioarcb.cmd_pkt.cdb[0];
468 trace_entry->type = type;
469 trace_entry->ata_op_code = ipr_cmd->ioarcb.add_data.u.regs.command;
470 trace_entry->cmd_index = ipr_cmd->cmd_index & 0xff;
471 trace_entry->res_handle = ipr_cmd->ioarcb.res_handle;
472 trace_entry->u.add_data = add_data;
475 #define ipr_trc_hook(ipr_cmd, type, add_data) do { } while(0)
479 * ipr_reinit_ipr_cmnd - Re-initialize an IPR Cmnd block for reuse
480 * @ipr_cmd: ipr command struct
485 static void ipr_reinit_ipr_cmnd(struct ipr_cmnd *ipr_cmd)
487 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
488 struct ipr_ioasa *ioasa = &ipr_cmd->ioasa;
489 dma_addr_t dma_addr = be32_to_cpu(ioarcb->ioarcb_host_pci_addr);
491 memset(&ioarcb->cmd_pkt, 0, sizeof(struct ipr_cmd_pkt));
492 ioarcb->write_data_transfer_length = 0;
493 ioarcb->read_data_transfer_length = 0;
494 ioarcb->write_ioadl_len = 0;
495 ioarcb->read_ioadl_len = 0;
496 ioarcb->write_ioadl_addr =
497 cpu_to_be32(dma_addr + offsetof(struct ipr_cmnd, ioadl));
498 ioarcb->read_ioadl_addr = ioarcb->write_ioadl_addr;
500 ioasa->residual_data_len = 0;
501 ioasa->u.gata.status = 0;
503 ipr_cmd->scsi_cmd = NULL;
505 ipr_cmd->sense_buffer[0] = 0;
506 ipr_cmd->dma_use_sg = 0;
510 * ipr_init_ipr_cmnd - Initialize an IPR Cmnd block
511 * @ipr_cmd: ipr command struct
516 static void ipr_init_ipr_cmnd(struct ipr_cmnd *ipr_cmd)
518 ipr_reinit_ipr_cmnd(ipr_cmd);
519 ipr_cmd->u.scratch = 0;
520 ipr_cmd->sibling = NULL;
521 init_timer(&ipr_cmd->timer);
525 * ipr_get_free_ipr_cmnd - Get a free IPR Cmnd block
526 * @ioa_cfg: ioa config struct
529 * pointer to ipr command struct
532 struct ipr_cmnd *ipr_get_free_ipr_cmnd(struct ipr_ioa_cfg *ioa_cfg)
534 struct ipr_cmnd *ipr_cmd;
536 ipr_cmd = list_entry(ioa_cfg->free_q.next, struct ipr_cmnd, queue);
537 list_del(&ipr_cmd->queue);
538 ipr_init_ipr_cmnd(ipr_cmd);
544 * ipr_mask_and_clear_interrupts - Mask all and clear specified interrupts
545 * @ioa_cfg: ioa config struct
546 * @clr_ints: interrupts to clear
548 * This function masks all interrupts on the adapter, then clears the
549 * interrupts specified in the mask
554 static void ipr_mask_and_clear_interrupts(struct ipr_ioa_cfg *ioa_cfg,
557 volatile u32 int_reg;
559 /* Stop new interrupts */
560 ioa_cfg->allow_interrupts = 0;
562 /* Set interrupt mask to stop all new interrupts */
563 writel(~0, ioa_cfg->regs.set_interrupt_mask_reg);
565 /* Clear any pending interrupts */
566 writel(clr_ints, ioa_cfg->regs.clr_interrupt_reg);
567 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg);
571 * ipr_save_pcix_cmd_reg - Save PCI-X command register
572 * @ioa_cfg: ioa config struct
575 * 0 on success / -EIO on failure
577 static int ipr_save_pcix_cmd_reg(struct ipr_ioa_cfg *ioa_cfg)
579 int pcix_cmd_reg = pci_find_capability(ioa_cfg->pdev, PCI_CAP_ID_PCIX);
581 if (pcix_cmd_reg == 0)
584 if (pci_read_config_word(ioa_cfg->pdev, pcix_cmd_reg + PCI_X_CMD,
585 &ioa_cfg->saved_pcix_cmd_reg) != PCIBIOS_SUCCESSFUL) {
586 dev_err(&ioa_cfg->pdev->dev, "Failed to save PCI-X command register\n");
590 ioa_cfg->saved_pcix_cmd_reg |= PCI_X_CMD_DPERR_E | PCI_X_CMD_ERO;
595 * ipr_set_pcix_cmd_reg - Setup PCI-X command register
596 * @ioa_cfg: ioa config struct
599 * 0 on success / -EIO on failure
601 static int ipr_set_pcix_cmd_reg(struct ipr_ioa_cfg *ioa_cfg)
603 int pcix_cmd_reg = pci_find_capability(ioa_cfg->pdev, PCI_CAP_ID_PCIX);
606 if (pci_write_config_word(ioa_cfg->pdev, pcix_cmd_reg + PCI_X_CMD,
607 ioa_cfg->saved_pcix_cmd_reg) != PCIBIOS_SUCCESSFUL) {
608 dev_err(&ioa_cfg->pdev->dev, "Failed to setup PCI-X command register\n");
617 * ipr_sata_eh_done - done function for aborted SATA commands
618 * @ipr_cmd: ipr command struct
620 * This function is invoked for ops generated to SATA
621 * devices which are being aborted.
626 static void ipr_sata_eh_done(struct ipr_cmnd *ipr_cmd)
628 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
629 struct ata_queued_cmd *qc = ipr_cmd->qc;
630 struct ipr_sata_port *sata_port = qc->ap->private_data;
632 qc->err_mask |= AC_ERR_OTHER;
633 sata_port->ioasa.status |= ATA_BUSY;
634 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
639 * ipr_scsi_eh_done - mid-layer done function for aborted ops
640 * @ipr_cmd: ipr command struct
642 * This function is invoked by the interrupt handler for
643 * ops generated by the SCSI mid-layer which are being aborted.
648 static void ipr_scsi_eh_done(struct ipr_cmnd *ipr_cmd)
650 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
651 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd;
653 scsi_cmd->result |= (DID_ERROR << 16);
655 scsi_dma_unmap(ipr_cmd->scsi_cmd);
656 scsi_cmd->scsi_done(scsi_cmd);
657 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
661 * ipr_fail_all_ops - Fails all outstanding ops.
662 * @ioa_cfg: ioa config struct
664 * This function fails all outstanding ops.
669 static void ipr_fail_all_ops(struct ipr_ioa_cfg *ioa_cfg)
671 struct ipr_cmnd *ipr_cmd, *temp;
674 list_for_each_entry_safe(ipr_cmd, temp, &ioa_cfg->pending_q, queue) {
675 list_del(&ipr_cmd->queue);
677 ipr_cmd->ioasa.ioasc = cpu_to_be32(IPR_IOASC_IOA_WAS_RESET);
678 ipr_cmd->ioasa.ilid = cpu_to_be32(IPR_DRIVER_ILID);
680 if (ipr_cmd->scsi_cmd)
681 ipr_cmd->done = ipr_scsi_eh_done;
682 else if (ipr_cmd->qc)
683 ipr_cmd->done = ipr_sata_eh_done;
685 ipr_trc_hook(ipr_cmd, IPR_TRACE_FINISH, IPR_IOASC_IOA_WAS_RESET);
686 del_timer(&ipr_cmd->timer);
687 ipr_cmd->done(ipr_cmd);
694 * ipr_do_req - Send driver initiated requests.
695 * @ipr_cmd: ipr command struct
696 * @done: done function
697 * @timeout_func: timeout function
698 * @timeout: timeout value
700 * This function sends the specified command to the adapter with the
701 * timeout given. The done function is invoked on command completion.
706 static void ipr_do_req(struct ipr_cmnd *ipr_cmd,
707 void (*done) (struct ipr_cmnd *),
708 void (*timeout_func) (struct ipr_cmnd *), u32 timeout)
710 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
712 list_add_tail(&ipr_cmd->queue, &ioa_cfg->pending_q);
714 ipr_cmd->done = done;
716 ipr_cmd->timer.data = (unsigned long) ipr_cmd;
717 ipr_cmd->timer.expires = jiffies + timeout;
718 ipr_cmd->timer.function = (void (*)(unsigned long))timeout_func;
720 add_timer(&ipr_cmd->timer);
722 ipr_trc_hook(ipr_cmd, IPR_TRACE_START, 0);
725 writel(be32_to_cpu(ipr_cmd->ioarcb.ioarcb_host_pci_addr),
726 ioa_cfg->regs.ioarrin_reg);
730 * ipr_internal_cmd_done - Op done function for an internally generated op.
731 * @ipr_cmd: ipr command struct
733 * This function is the op done function for an internally generated,
734 * blocking op. It simply wakes the sleeping thread.
739 static void ipr_internal_cmd_done(struct ipr_cmnd *ipr_cmd)
741 if (ipr_cmd->sibling)
742 ipr_cmd->sibling = NULL;
744 complete(&ipr_cmd->completion);
748 * ipr_send_blocking_cmd - Send command and sleep on its completion.
749 * @ipr_cmd: ipr command struct
750 * @timeout_func: function to invoke if command times out
756 static void ipr_send_blocking_cmd(struct ipr_cmnd *ipr_cmd,
757 void (*timeout_func) (struct ipr_cmnd *ipr_cmd),
760 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
762 init_completion(&ipr_cmd->completion);
763 ipr_do_req(ipr_cmd, ipr_internal_cmd_done, timeout_func, timeout);
765 spin_unlock_irq(ioa_cfg->host->host_lock);
766 wait_for_completion(&ipr_cmd->completion);
767 spin_lock_irq(ioa_cfg->host->host_lock);
771 * ipr_send_hcam - Send an HCAM to the adapter.
772 * @ioa_cfg: ioa config struct
774 * @hostrcb: hostrcb struct
776 * This function will send a Host Controlled Async command to the adapter.
777 * If HCAMs are currently not allowed to be issued to the adapter, it will
778 * place the hostrcb on the free queue.
783 static void ipr_send_hcam(struct ipr_ioa_cfg *ioa_cfg, u8 type,
784 struct ipr_hostrcb *hostrcb)
786 struct ipr_cmnd *ipr_cmd;
787 struct ipr_ioarcb *ioarcb;
789 if (ioa_cfg->allow_cmds) {
790 ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg);
791 list_add_tail(&ipr_cmd->queue, &ioa_cfg->pending_q);
792 list_add_tail(&hostrcb->queue, &ioa_cfg->hostrcb_pending_q);
794 ipr_cmd->u.hostrcb = hostrcb;
795 ioarcb = &ipr_cmd->ioarcb;
797 ioarcb->res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE);
798 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_HCAM;
799 ioarcb->cmd_pkt.cdb[0] = IPR_HOST_CONTROLLED_ASYNC;
800 ioarcb->cmd_pkt.cdb[1] = type;
801 ioarcb->cmd_pkt.cdb[7] = (sizeof(hostrcb->hcam) >> 8) & 0xff;
802 ioarcb->cmd_pkt.cdb[8] = sizeof(hostrcb->hcam) & 0xff;
804 ioarcb->read_data_transfer_length = cpu_to_be32(sizeof(hostrcb->hcam));
805 ioarcb->read_ioadl_len = cpu_to_be32(sizeof(struct ipr_ioadl_desc));
806 ipr_cmd->ioadl[0].flags_and_data_len =
807 cpu_to_be32(IPR_IOADL_FLAGS_READ_LAST | sizeof(hostrcb->hcam));
808 ipr_cmd->ioadl[0].address = cpu_to_be32(hostrcb->hostrcb_dma);
810 if (type == IPR_HCAM_CDB_OP_CODE_CONFIG_CHANGE)
811 ipr_cmd->done = ipr_process_ccn;
813 ipr_cmd->done = ipr_process_error;
815 ipr_trc_hook(ipr_cmd, IPR_TRACE_START, IPR_IOA_RES_ADDR);
818 writel(be32_to_cpu(ipr_cmd->ioarcb.ioarcb_host_pci_addr),
819 ioa_cfg->regs.ioarrin_reg);
821 list_add_tail(&hostrcb->queue, &ioa_cfg->hostrcb_free_q);
826 * ipr_init_res_entry - Initialize a resource entry struct.
827 * @res: resource entry struct
832 static void ipr_init_res_entry(struct ipr_resource_entry *res)
834 res->needs_sync_complete = 0;
837 res->del_from_ml = 0;
838 res->resetting_device = 0;
840 res->sata_port = NULL;
844 * ipr_handle_config_change - Handle a config change from the adapter
845 * @ioa_cfg: ioa config struct
851 static void ipr_handle_config_change(struct ipr_ioa_cfg *ioa_cfg,
852 struct ipr_hostrcb *hostrcb)
854 struct ipr_resource_entry *res = NULL;
855 struct ipr_config_table_entry *cfgte;
858 cfgte = &hostrcb->hcam.u.ccn.cfgte;
860 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) {
861 if (!memcmp(&res->cfgte.res_addr, &cfgte->res_addr,
862 sizeof(cfgte->res_addr))) {
869 if (list_empty(&ioa_cfg->free_res_q)) {
870 ipr_send_hcam(ioa_cfg,
871 IPR_HCAM_CDB_OP_CODE_CONFIG_CHANGE,
876 res = list_entry(ioa_cfg->free_res_q.next,
877 struct ipr_resource_entry, queue);
879 list_del(&res->queue);
880 ipr_init_res_entry(res);
881 list_add_tail(&res->queue, &ioa_cfg->used_res_q);
884 memcpy(&res->cfgte, cfgte, sizeof(struct ipr_config_table_entry));
886 if (hostrcb->hcam.notify_type == IPR_HOST_RCB_NOTIF_TYPE_REM_ENTRY) {
888 res->del_from_ml = 1;
889 res->cfgte.res_handle = IPR_INVALID_RES_HANDLE;
890 if (ioa_cfg->allow_ml_add_del)
891 schedule_work(&ioa_cfg->work_q);
893 list_move_tail(&res->queue, &ioa_cfg->free_res_q);
894 } else if (!res->sdev) {
896 if (ioa_cfg->allow_ml_add_del)
897 schedule_work(&ioa_cfg->work_q);
900 ipr_send_hcam(ioa_cfg, IPR_HCAM_CDB_OP_CODE_CONFIG_CHANGE, hostrcb);
904 * ipr_process_ccn - Op done function for a CCN.
905 * @ipr_cmd: ipr command struct
907 * This function is the op done function for a configuration
908 * change notification host controlled async from the adapter.
913 static void ipr_process_ccn(struct ipr_cmnd *ipr_cmd)
915 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
916 struct ipr_hostrcb *hostrcb = ipr_cmd->u.hostrcb;
917 u32 ioasc = be32_to_cpu(ipr_cmd->ioasa.ioasc);
919 list_del(&hostrcb->queue);
920 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
923 if (ioasc != IPR_IOASC_IOA_WAS_RESET)
924 dev_err(&ioa_cfg->pdev->dev,
925 "Host RCB failed with IOASC: 0x%08X\n", ioasc);
927 ipr_send_hcam(ioa_cfg, IPR_HCAM_CDB_OP_CODE_CONFIG_CHANGE, hostrcb);
929 ipr_handle_config_change(ioa_cfg, hostrcb);
934 * strip_and_pad_whitespace - Strip and pad trailing whitespace.
935 * @i: index into buffer
936 * @buf: string to modify
938 * This function will strip all trailing whitespace, pad the end
939 * of the string with a single space, and NULL terminate the string.
942 * new length of string
944 static int strip_and_pad_whitespace(int i, char *buf)
946 while (i && buf[i] == ' ')
954 * ipr_log_vpd_compact - Log the passed extended VPD compactly.
955 * @prefix: string to print at start of printk
956 * @hostrcb: hostrcb pointer
957 * @vpd: vendor/product id/sn struct
962 static void ipr_log_vpd_compact(char *prefix, struct ipr_hostrcb *hostrcb,
965 char buffer[IPR_VENDOR_ID_LEN + IPR_PROD_ID_LEN + IPR_SERIAL_NUM_LEN + 3];
968 memcpy(buffer, vpd->vpids.vendor_id, IPR_VENDOR_ID_LEN);
969 i = strip_and_pad_whitespace(IPR_VENDOR_ID_LEN - 1, buffer);
971 memcpy(&buffer[i], vpd->vpids.product_id, IPR_PROD_ID_LEN);
972 i = strip_and_pad_whitespace(i + IPR_PROD_ID_LEN - 1, buffer);
974 memcpy(&buffer[i], vpd->sn, IPR_SERIAL_NUM_LEN);
975 buffer[IPR_SERIAL_NUM_LEN + i] = '\0';
977 ipr_hcam_err(hostrcb, "%s VPID/SN: %s\n", prefix, buffer);
981 * ipr_log_vpd - Log the passed VPD to the error log.
982 * @vpd: vendor/product id/sn struct
987 static void ipr_log_vpd(struct ipr_vpd *vpd)
989 char buffer[IPR_VENDOR_ID_LEN + IPR_PROD_ID_LEN
990 + IPR_SERIAL_NUM_LEN];
992 memcpy(buffer, vpd->vpids.vendor_id, IPR_VENDOR_ID_LEN);
993 memcpy(buffer + IPR_VENDOR_ID_LEN, vpd->vpids.product_id,
995 buffer[IPR_VENDOR_ID_LEN + IPR_PROD_ID_LEN] = '\0';
996 ipr_err("Vendor/Product ID: %s\n", buffer);
998 memcpy(buffer, vpd->sn, IPR_SERIAL_NUM_LEN);
999 buffer[IPR_SERIAL_NUM_LEN] = '\0';
1000 ipr_err(" Serial Number: %s\n", buffer);
1004 * ipr_log_ext_vpd_compact - Log the passed extended VPD compactly.
1005 * @prefix: string to print at start of printk
1006 * @hostrcb: hostrcb pointer
1007 * @vpd: vendor/product id/sn/wwn struct
1012 static void ipr_log_ext_vpd_compact(char *prefix, struct ipr_hostrcb *hostrcb,
1013 struct ipr_ext_vpd *vpd)
1015 ipr_log_vpd_compact(prefix, hostrcb, &vpd->vpd);
1016 ipr_hcam_err(hostrcb, "%s WWN: %08X%08X\n", prefix,
1017 be32_to_cpu(vpd->wwid[0]), be32_to_cpu(vpd->wwid[1]));
1021 * ipr_log_ext_vpd - Log the passed extended VPD to the error log.
1022 * @vpd: vendor/product id/sn/wwn struct
1027 static void ipr_log_ext_vpd(struct ipr_ext_vpd *vpd)
1029 ipr_log_vpd(&vpd->vpd);
1030 ipr_err(" WWN: %08X%08X\n", be32_to_cpu(vpd->wwid[0]),
1031 be32_to_cpu(vpd->wwid[1]));
1035 * ipr_log_enhanced_cache_error - Log a cache error.
1036 * @ioa_cfg: ioa config struct
1037 * @hostrcb: hostrcb struct
1042 static void ipr_log_enhanced_cache_error(struct ipr_ioa_cfg *ioa_cfg,
1043 struct ipr_hostrcb *hostrcb)
1045 struct ipr_hostrcb_type_12_error *error =
1046 &hostrcb->hcam.u.error.u.type_12_error;
1048 ipr_err("-----Current Configuration-----\n");
1049 ipr_err("Cache Directory Card Information:\n");
1050 ipr_log_ext_vpd(&error->ioa_vpd);
1051 ipr_err("Adapter Card Information:\n");
1052 ipr_log_ext_vpd(&error->cfc_vpd);
1054 ipr_err("-----Expected Configuration-----\n");
1055 ipr_err("Cache Directory Card Information:\n");
1056 ipr_log_ext_vpd(&error->ioa_last_attached_to_cfc_vpd);
1057 ipr_err("Adapter Card Information:\n");
1058 ipr_log_ext_vpd(&error->cfc_last_attached_to_ioa_vpd);
1060 ipr_err("Additional IOA Data: %08X %08X %08X\n",
1061 be32_to_cpu(error->ioa_data[0]),
1062 be32_to_cpu(error->ioa_data[1]),
1063 be32_to_cpu(error->ioa_data[2]));
1067 * ipr_log_cache_error - Log a cache error.
1068 * @ioa_cfg: ioa config struct
1069 * @hostrcb: hostrcb struct
1074 static void ipr_log_cache_error(struct ipr_ioa_cfg *ioa_cfg,
1075 struct ipr_hostrcb *hostrcb)
1077 struct ipr_hostrcb_type_02_error *error =
1078 &hostrcb->hcam.u.error.u.type_02_error;
1080 ipr_err("-----Current Configuration-----\n");
1081 ipr_err("Cache Directory Card Information:\n");
1082 ipr_log_vpd(&error->ioa_vpd);
1083 ipr_err("Adapter Card Information:\n");
1084 ipr_log_vpd(&error->cfc_vpd);
1086 ipr_err("-----Expected Configuration-----\n");
1087 ipr_err("Cache Directory Card Information:\n");
1088 ipr_log_vpd(&error->ioa_last_attached_to_cfc_vpd);
1089 ipr_err("Adapter Card Information:\n");
1090 ipr_log_vpd(&error->cfc_last_attached_to_ioa_vpd);
1092 ipr_err("Additional IOA Data: %08X %08X %08X\n",
1093 be32_to_cpu(error->ioa_data[0]),
1094 be32_to_cpu(error->ioa_data[1]),
1095 be32_to_cpu(error->ioa_data[2]));
1099 * ipr_log_enhanced_config_error - Log a configuration error.
1100 * @ioa_cfg: ioa config struct
1101 * @hostrcb: hostrcb struct
1106 static void ipr_log_enhanced_config_error(struct ipr_ioa_cfg *ioa_cfg,
1107 struct ipr_hostrcb *hostrcb)
1109 int errors_logged, i;
1110 struct ipr_hostrcb_device_data_entry_enhanced *dev_entry;
1111 struct ipr_hostrcb_type_13_error *error;
1113 error = &hostrcb->hcam.u.error.u.type_13_error;
1114 errors_logged = be32_to_cpu(error->errors_logged);
1116 ipr_err("Device Errors Detected/Logged: %d/%d\n",
1117 be32_to_cpu(error->errors_detected), errors_logged);
1119 dev_entry = error->dev;
1121 for (i = 0; i < errors_logged; i++, dev_entry++) {
1124 ipr_phys_res_err(ioa_cfg, dev_entry->dev_res_addr, "Device %d", i + 1);
1125 ipr_log_ext_vpd(&dev_entry->vpd);
1127 ipr_err("-----New Device Information-----\n");
1128 ipr_log_ext_vpd(&dev_entry->new_vpd);
1130 ipr_err("Cache Directory Card Information:\n");
1131 ipr_log_ext_vpd(&dev_entry->ioa_last_with_dev_vpd);
1133 ipr_err("Adapter Card Information:\n");
1134 ipr_log_ext_vpd(&dev_entry->cfc_last_with_dev_vpd);
1139 * ipr_log_config_error - Log a configuration error.
1140 * @ioa_cfg: ioa config struct
1141 * @hostrcb: hostrcb struct
1146 static void ipr_log_config_error(struct ipr_ioa_cfg *ioa_cfg,
1147 struct ipr_hostrcb *hostrcb)
1149 int errors_logged, i;
1150 struct ipr_hostrcb_device_data_entry *dev_entry;
1151 struct ipr_hostrcb_type_03_error *error;
1153 error = &hostrcb->hcam.u.error.u.type_03_error;
1154 errors_logged = be32_to_cpu(error->errors_logged);
1156 ipr_err("Device Errors Detected/Logged: %d/%d\n",
1157 be32_to_cpu(error->errors_detected), errors_logged);
1159 dev_entry = error->dev;
1161 for (i = 0; i < errors_logged; i++, dev_entry++) {
1164 ipr_phys_res_err(ioa_cfg, dev_entry->dev_res_addr, "Device %d", i + 1);
1165 ipr_log_vpd(&dev_entry->vpd);
1167 ipr_err("-----New Device Information-----\n");
1168 ipr_log_vpd(&dev_entry->new_vpd);
1170 ipr_err("Cache Directory Card Information:\n");
1171 ipr_log_vpd(&dev_entry->ioa_last_with_dev_vpd);
1173 ipr_err("Adapter Card Information:\n");
1174 ipr_log_vpd(&dev_entry->cfc_last_with_dev_vpd);
1176 ipr_err("Additional IOA Data: %08X %08X %08X %08X %08X\n",
1177 be32_to_cpu(dev_entry->ioa_data[0]),
1178 be32_to_cpu(dev_entry->ioa_data[1]),
1179 be32_to_cpu(dev_entry->ioa_data[2]),
1180 be32_to_cpu(dev_entry->ioa_data[3]),
1181 be32_to_cpu(dev_entry->ioa_data[4]));
1186 * ipr_log_enhanced_array_error - Log an array configuration error.
1187 * @ioa_cfg: ioa config struct
1188 * @hostrcb: hostrcb struct
1193 static void ipr_log_enhanced_array_error(struct ipr_ioa_cfg *ioa_cfg,
1194 struct ipr_hostrcb *hostrcb)
1197 struct ipr_hostrcb_type_14_error *error;
1198 struct ipr_hostrcb_array_data_entry_enhanced *array_entry;
1199 const u8 zero_sn[IPR_SERIAL_NUM_LEN] = { [0 ... IPR_SERIAL_NUM_LEN-1] = '0' };
1201 error = &hostrcb->hcam.u.error.u.type_14_error;
1205 ipr_err("RAID %s Array Configuration: %d:%d:%d:%d\n",
1206 error->protection_level,
1207 ioa_cfg->host->host_no,
1208 error->last_func_vset_res_addr.bus,
1209 error->last_func_vset_res_addr.target,
1210 error->last_func_vset_res_addr.lun);
1214 array_entry = error->array_member;
1215 num_entries = min_t(u32, be32_to_cpu(error->num_entries),
1216 sizeof(error->array_member));
1218 for (i = 0; i < num_entries; i++, array_entry++) {
1219 if (!memcmp(array_entry->vpd.vpd.sn, zero_sn, IPR_SERIAL_NUM_LEN))
1222 if (be32_to_cpu(error->exposed_mode_adn) == i)
1223 ipr_err("Exposed Array Member %d:\n", i);
1225 ipr_err("Array Member %d:\n", i);
1227 ipr_log_ext_vpd(&array_entry->vpd);
1228 ipr_phys_res_err(ioa_cfg, array_entry->dev_res_addr, "Current Location");
1229 ipr_phys_res_err(ioa_cfg, array_entry->expected_dev_res_addr,
1230 "Expected Location");
1237 * ipr_log_array_error - Log an array configuration error.
1238 * @ioa_cfg: ioa config struct
1239 * @hostrcb: hostrcb struct
1244 static void ipr_log_array_error(struct ipr_ioa_cfg *ioa_cfg,
1245 struct ipr_hostrcb *hostrcb)
1248 struct ipr_hostrcb_type_04_error *error;
1249 struct ipr_hostrcb_array_data_entry *array_entry;
1250 const u8 zero_sn[IPR_SERIAL_NUM_LEN] = { [0 ... IPR_SERIAL_NUM_LEN-1] = '0' };
1252 error = &hostrcb->hcam.u.error.u.type_04_error;
1256 ipr_err("RAID %s Array Configuration: %d:%d:%d:%d\n",
1257 error->protection_level,
1258 ioa_cfg->host->host_no,
1259 error->last_func_vset_res_addr.bus,
1260 error->last_func_vset_res_addr.target,
1261 error->last_func_vset_res_addr.lun);
1265 array_entry = error->array_member;
1267 for (i = 0; i < 18; i++) {
1268 if (!memcmp(array_entry->vpd.sn, zero_sn, IPR_SERIAL_NUM_LEN))
1271 if (be32_to_cpu(error->exposed_mode_adn) == i)
1272 ipr_err("Exposed Array Member %d:\n", i);
1274 ipr_err("Array Member %d:\n", i);
1276 ipr_log_vpd(&array_entry->vpd);
1278 ipr_phys_res_err(ioa_cfg, array_entry->dev_res_addr, "Current Location");
1279 ipr_phys_res_err(ioa_cfg, array_entry->expected_dev_res_addr,
1280 "Expected Location");
1285 array_entry = error->array_member2;
1292 * ipr_log_hex_data - Log additional hex IOA error data.
1293 * @ioa_cfg: ioa config struct
1294 * @data: IOA error data
1300 static void ipr_log_hex_data(struct ipr_ioa_cfg *ioa_cfg, u32 *data, int len)
1307 if (ioa_cfg->log_level <= IPR_DEFAULT_LOG_LEVEL)
1308 len = min_t(int, len, IPR_DEFAULT_MAX_ERROR_DUMP);
1310 for (i = 0; i < len / 4; i += 4) {
1311 ipr_err("%08X: %08X %08X %08X %08X\n", i*4,
1312 be32_to_cpu(data[i]),
1313 be32_to_cpu(data[i+1]),
1314 be32_to_cpu(data[i+2]),
1315 be32_to_cpu(data[i+3]));
1320 * ipr_log_enhanced_dual_ioa_error - Log an enhanced dual adapter error.
1321 * @ioa_cfg: ioa config struct
1322 * @hostrcb: hostrcb struct
1327 static void ipr_log_enhanced_dual_ioa_error(struct ipr_ioa_cfg *ioa_cfg,
1328 struct ipr_hostrcb *hostrcb)
1330 struct ipr_hostrcb_type_17_error *error;
1332 error = &hostrcb->hcam.u.error.u.type_17_error;
1333 error->failure_reason[sizeof(error->failure_reason) - 1] = '\0';
1334 strstrip(error->failure_reason);
1336 ipr_hcam_err(hostrcb, "%s [PRC: %08X]\n", error->failure_reason,
1337 be32_to_cpu(hostrcb->hcam.u.error.prc));
1338 ipr_log_ext_vpd_compact("Remote IOA", hostrcb, &error->vpd);
1339 ipr_log_hex_data(ioa_cfg, error->data,
1340 be32_to_cpu(hostrcb->hcam.length) -
1341 (offsetof(struct ipr_hostrcb_error, u) +
1342 offsetof(struct ipr_hostrcb_type_17_error, data)));
1346 * ipr_log_dual_ioa_error - Log a dual adapter error.
1347 * @ioa_cfg: ioa config struct
1348 * @hostrcb: hostrcb struct
1353 static void ipr_log_dual_ioa_error(struct ipr_ioa_cfg *ioa_cfg,
1354 struct ipr_hostrcb *hostrcb)
1356 struct ipr_hostrcb_type_07_error *error;
1358 error = &hostrcb->hcam.u.error.u.type_07_error;
1359 error->failure_reason[sizeof(error->failure_reason) - 1] = '\0';
1360 strstrip(error->failure_reason);
1362 ipr_hcam_err(hostrcb, "%s [PRC: %08X]\n", error->failure_reason,
1363 be32_to_cpu(hostrcb->hcam.u.error.prc));
1364 ipr_log_vpd_compact("Remote IOA", hostrcb, &error->vpd);
1365 ipr_log_hex_data(ioa_cfg, error->data,
1366 be32_to_cpu(hostrcb->hcam.length) -
1367 (offsetof(struct ipr_hostrcb_error, u) +
1368 offsetof(struct ipr_hostrcb_type_07_error, data)));
1371 static const struct {
1374 } path_active_desc[] = {
1375 { IPR_PATH_NO_INFO, "Path" },
1376 { IPR_PATH_ACTIVE, "Active path" },
1377 { IPR_PATH_NOT_ACTIVE, "Inactive path" }
1380 static const struct {
1383 } path_state_desc[] = {
1384 { IPR_PATH_STATE_NO_INFO, "has no path state information available" },
1385 { IPR_PATH_HEALTHY, "is healthy" },
1386 { IPR_PATH_DEGRADED, "is degraded" },
1387 { IPR_PATH_FAILED, "is failed" }
1391 * ipr_log_fabric_path - Log a fabric path error
1392 * @hostrcb: hostrcb struct
1393 * @fabric: fabric descriptor
1398 static void ipr_log_fabric_path(struct ipr_hostrcb *hostrcb,
1399 struct ipr_hostrcb_fabric_desc *fabric)
1402 u8 path_state = fabric->path_state;
1403 u8 active = path_state & IPR_PATH_ACTIVE_MASK;
1404 u8 state = path_state & IPR_PATH_STATE_MASK;
1406 for (i = 0; i < ARRAY_SIZE(path_active_desc); i++) {
1407 if (path_active_desc[i].active != active)
1410 for (j = 0; j < ARRAY_SIZE(path_state_desc); j++) {
1411 if (path_state_desc[j].state != state)
1414 if (fabric->cascaded_expander == 0xff && fabric->phy == 0xff) {
1415 ipr_hcam_err(hostrcb, "%s %s: IOA Port=%d\n",
1416 path_active_desc[i].desc, path_state_desc[j].desc,
1418 } else if (fabric->cascaded_expander == 0xff) {
1419 ipr_hcam_err(hostrcb, "%s %s: IOA Port=%d, Phy=%d\n",
1420 path_active_desc[i].desc, path_state_desc[j].desc,
1421 fabric->ioa_port, fabric->phy);
1422 } else if (fabric->phy == 0xff) {
1423 ipr_hcam_err(hostrcb, "%s %s: IOA Port=%d, Cascade=%d\n",
1424 path_active_desc[i].desc, path_state_desc[j].desc,
1425 fabric->ioa_port, fabric->cascaded_expander);
1427 ipr_hcam_err(hostrcb, "%s %s: IOA Port=%d, Cascade=%d, Phy=%d\n",
1428 path_active_desc[i].desc, path_state_desc[j].desc,
1429 fabric->ioa_port, fabric->cascaded_expander, fabric->phy);
1435 ipr_err("Path state=%02X IOA Port=%d Cascade=%d Phy=%d\n", path_state,
1436 fabric->ioa_port, fabric->cascaded_expander, fabric->phy);
1439 static const struct {
1442 } path_type_desc[] = {
1443 { IPR_PATH_CFG_IOA_PORT, "IOA port" },
1444 { IPR_PATH_CFG_EXP_PORT, "Expander port" },
1445 { IPR_PATH_CFG_DEVICE_PORT, "Device port" },
1446 { IPR_PATH_CFG_DEVICE_LUN, "Device LUN" }
1449 static const struct {
1452 } path_status_desc[] = {
1453 { IPR_PATH_CFG_NO_PROB, "Functional" },
1454 { IPR_PATH_CFG_DEGRADED, "Degraded" },
1455 { IPR_PATH_CFG_FAILED, "Failed" },
1456 { IPR_PATH_CFG_SUSPECT, "Suspect" },
1457 { IPR_PATH_NOT_DETECTED, "Missing" },
1458 { IPR_PATH_INCORRECT_CONN, "Incorrectly connected" }
1461 static const char *link_rate[] = {
1464 "phy reset problem",
1481 * ipr_log_path_elem - Log a fabric path element.
1482 * @hostrcb: hostrcb struct
1483 * @cfg: fabric path element struct
1488 static void ipr_log_path_elem(struct ipr_hostrcb *hostrcb,
1489 struct ipr_hostrcb_config_element *cfg)
1492 u8 type = cfg->type_status & IPR_PATH_CFG_TYPE_MASK;
1493 u8 status = cfg->type_status & IPR_PATH_CFG_STATUS_MASK;
1495 if (type == IPR_PATH_CFG_NOT_EXIST)
1498 for (i = 0; i < ARRAY_SIZE(path_type_desc); i++) {
1499 if (path_type_desc[i].type != type)
1502 for (j = 0; j < ARRAY_SIZE(path_status_desc); j++) {
1503 if (path_status_desc[j].status != status)
1506 if (type == IPR_PATH_CFG_IOA_PORT) {
1507 ipr_hcam_err(hostrcb, "%s %s: Phy=%d, Link rate=%s, WWN=%08X%08X\n",
1508 path_status_desc[j].desc, path_type_desc[i].desc,
1509 cfg->phy, link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK],
1510 be32_to_cpu(cfg->wwid[0]), be32_to_cpu(cfg->wwid[1]));
1512 if (cfg->cascaded_expander == 0xff && cfg->phy == 0xff) {
1513 ipr_hcam_err(hostrcb, "%s %s: Link rate=%s, WWN=%08X%08X\n",
1514 path_status_desc[j].desc, path_type_desc[i].desc,
1515 link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK],
1516 be32_to_cpu(cfg->wwid[0]), be32_to_cpu(cfg->wwid[1]));
1517 } else if (cfg->cascaded_expander == 0xff) {
1518 ipr_hcam_err(hostrcb, "%s %s: Phy=%d, Link rate=%s, "
1519 "WWN=%08X%08X\n", path_status_desc[j].desc,
1520 path_type_desc[i].desc, cfg->phy,
1521 link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK],
1522 be32_to_cpu(cfg->wwid[0]), be32_to_cpu(cfg->wwid[1]));
1523 } else if (cfg->phy == 0xff) {
1524 ipr_hcam_err(hostrcb, "%s %s: Cascade=%d, Link rate=%s, "
1525 "WWN=%08X%08X\n", path_status_desc[j].desc,
1526 path_type_desc[i].desc, cfg->cascaded_expander,
1527 link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK],
1528 be32_to_cpu(cfg->wwid[0]), be32_to_cpu(cfg->wwid[1]));
1530 ipr_hcam_err(hostrcb, "%s %s: Cascade=%d, Phy=%d, Link rate=%s "
1531 "WWN=%08X%08X\n", path_status_desc[j].desc,
1532 path_type_desc[i].desc, cfg->cascaded_expander, cfg->phy,
1533 link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK],
1534 be32_to_cpu(cfg->wwid[0]), be32_to_cpu(cfg->wwid[1]));
1541 ipr_hcam_err(hostrcb, "Path element=%02X: Cascade=%d Phy=%d Link rate=%s "
1542 "WWN=%08X%08X\n", cfg->type_status, cfg->cascaded_expander, cfg->phy,
1543 link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK],
1544 be32_to_cpu(cfg->wwid[0]), be32_to_cpu(cfg->wwid[1]));
1548 * ipr_log_fabric_error - Log a fabric error.
1549 * @ioa_cfg: ioa config struct
1550 * @hostrcb: hostrcb struct
1555 static void ipr_log_fabric_error(struct ipr_ioa_cfg *ioa_cfg,
1556 struct ipr_hostrcb *hostrcb)
1558 struct ipr_hostrcb_type_20_error *error;
1559 struct ipr_hostrcb_fabric_desc *fabric;
1560 struct ipr_hostrcb_config_element *cfg;
1563 error = &hostrcb->hcam.u.error.u.type_20_error;
1564 error->failure_reason[sizeof(error->failure_reason) - 1] = '\0';
1565 ipr_hcam_err(hostrcb, "%s\n", error->failure_reason);
1567 add_len = be32_to_cpu(hostrcb->hcam.length) -
1568 (offsetof(struct ipr_hostrcb_error, u) +
1569 offsetof(struct ipr_hostrcb_type_20_error, desc));
1571 for (i = 0, fabric = error->desc; i < error->num_entries; i++) {
1572 ipr_log_fabric_path(hostrcb, fabric);
1573 for_each_fabric_cfg(fabric, cfg)
1574 ipr_log_path_elem(hostrcb, cfg);
1576 add_len -= be16_to_cpu(fabric->length);
1577 fabric = (struct ipr_hostrcb_fabric_desc *)
1578 ((unsigned long)fabric + be16_to_cpu(fabric->length));
1581 ipr_log_hex_data(ioa_cfg, (u32 *)fabric, add_len);
1585 * ipr_log_generic_error - Log an adapter error.
1586 * @ioa_cfg: ioa config struct
1587 * @hostrcb: hostrcb struct
1592 static void ipr_log_generic_error(struct ipr_ioa_cfg *ioa_cfg,
1593 struct ipr_hostrcb *hostrcb)
1595 ipr_log_hex_data(ioa_cfg, hostrcb->hcam.u.raw.data,
1596 be32_to_cpu(hostrcb->hcam.length));
1600 * ipr_get_error - Find the specfied IOASC in the ipr_error_table.
1603 * This function will return the index of into the ipr_error_table
1604 * for the specified IOASC. If the IOASC is not in the table,
1605 * 0 will be returned, which points to the entry used for unknown errors.
1608 * index into the ipr_error_table
1610 static u32 ipr_get_error(u32 ioasc)
1614 for (i = 0; i < ARRAY_SIZE(ipr_error_table); i++)
1615 if (ipr_error_table[i].ioasc == (ioasc & IPR_IOASC_IOASC_MASK))
1622 * ipr_handle_log_data - Log an adapter error.
1623 * @ioa_cfg: ioa config struct
1624 * @hostrcb: hostrcb struct
1626 * This function logs an adapter error to the system.
1631 static void ipr_handle_log_data(struct ipr_ioa_cfg *ioa_cfg,
1632 struct ipr_hostrcb *hostrcb)
1637 if (hostrcb->hcam.notify_type != IPR_HOST_RCB_NOTIF_TYPE_ERROR_LOG_ENTRY)
1640 if (hostrcb->hcam.notifications_lost == IPR_HOST_RCB_NOTIFICATIONS_LOST)
1641 dev_err(&ioa_cfg->pdev->dev, "Error notifications lost\n");
1643 ioasc = be32_to_cpu(hostrcb->hcam.u.error.failing_dev_ioasc);
1645 if (ioasc == IPR_IOASC_BUS_WAS_RESET ||
1646 ioasc == IPR_IOASC_BUS_WAS_RESET_BY_OTHER) {
1647 /* Tell the midlayer we had a bus reset so it will handle the UA properly */
1648 scsi_report_bus_reset(ioa_cfg->host,
1649 hostrcb->hcam.u.error.failing_dev_res_addr.bus);
1652 error_index = ipr_get_error(ioasc);
1654 if (!ipr_error_table[error_index].log_hcam)
1657 ipr_hcam_err(hostrcb, "%s\n", ipr_error_table[error_index].error);
1659 /* Set indication we have logged an error */
1660 ioa_cfg->errors_logged++;
1662 if (ioa_cfg->log_level < ipr_error_table[error_index].log_hcam)
1664 if (be32_to_cpu(hostrcb->hcam.length) > sizeof(hostrcb->hcam.u.raw))
1665 hostrcb->hcam.length = cpu_to_be32(sizeof(hostrcb->hcam.u.raw));
1667 switch (hostrcb->hcam.overlay_id) {
1668 case IPR_HOST_RCB_OVERLAY_ID_2:
1669 ipr_log_cache_error(ioa_cfg, hostrcb);
1671 case IPR_HOST_RCB_OVERLAY_ID_3:
1672 ipr_log_config_error(ioa_cfg, hostrcb);
1674 case IPR_HOST_RCB_OVERLAY_ID_4:
1675 case IPR_HOST_RCB_OVERLAY_ID_6:
1676 ipr_log_array_error(ioa_cfg, hostrcb);
1678 case IPR_HOST_RCB_OVERLAY_ID_7:
1679 ipr_log_dual_ioa_error(ioa_cfg, hostrcb);
1681 case IPR_HOST_RCB_OVERLAY_ID_12:
1682 ipr_log_enhanced_cache_error(ioa_cfg, hostrcb);
1684 case IPR_HOST_RCB_OVERLAY_ID_13:
1685 ipr_log_enhanced_config_error(ioa_cfg, hostrcb);
1687 case IPR_HOST_RCB_OVERLAY_ID_14:
1688 case IPR_HOST_RCB_OVERLAY_ID_16:
1689 ipr_log_enhanced_array_error(ioa_cfg, hostrcb);
1691 case IPR_HOST_RCB_OVERLAY_ID_17:
1692 ipr_log_enhanced_dual_ioa_error(ioa_cfg, hostrcb);
1694 case IPR_HOST_RCB_OVERLAY_ID_20:
1695 ipr_log_fabric_error(ioa_cfg, hostrcb);
1697 case IPR_HOST_RCB_OVERLAY_ID_1:
1698 case IPR_HOST_RCB_OVERLAY_ID_DEFAULT:
1700 ipr_log_generic_error(ioa_cfg, hostrcb);
1706 * ipr_process_error - Op done function for an adapter error log.
1707 * @ipr_cmd: ipr command struct
1709 * This function is the op done function for an error log host
1710 * controlled async from the adapter. It will log the error and
1711 * send the HCAM back to the adapter.
1716 static void ipr_process_error(struct ipr_cmnd *ipr_cmd)
1718 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
1719 struct ipr_hostrcb *hostrcb = ipr_cmd->u.hostrcb;
1720 u32 ioasc = be32_to_cpu(ipr_cmd->ioasa.ioasc);
1721 u32 fd_ioasc = be32_to_cpu(hostrcb->hcam.u.error.failing_dev_ioasc);
1723 list_del(&hostrcb->queue);
1724 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
1727 ipr_handle_log_data(ioa_cfg, hostrcb);
1728 if (fd_ioasc == IPR_IOASC_NR_IOA_RESET_REQUIRED)
1729 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_ABBREV);
1730 } else if (ioasc != IPR_IOASC_IOA_WAS_RESET) {
1731 dev_err(&ioa_cfg->pdev->dev,
1732 "Host RCB failed with IOASC: 0x%08X\n", ioasc);
1735 ipr_send_hcam(ioa_cfg, IPR_HCAM_CDB_OP_CODE_LOG_DATA, hostrcb);
1739 * ipr_timeout - An internally generated op has timed out.
1740 * @ipr_cmd: ipr command struct
1742 * This function blocks host requests and initiates an
1748 static void ipr_timeout(struct ipr_cmnd *ipr_cmd)
1750 unsigned long lock_flags = 0;
1751 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
1754 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
1756 ioa_cfg->errors_logged++;
1757 dev_err(&ioa_cfg->pdev->dev,
1758 "Adapter being reset due to command timeout.\n");
1760 if (WAIT_FOR_DUMP == ioa_cfg->sdt_state)
1761 ioa_cfg->sdt_state = GET_DUMP;
1763 if (!ioa_cfg->in_reset_reload || ioa_cfg->reset_cmd == ipr_cmd)
1764 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
1766 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
1771 * ipr_oper_timeout - Adapter timed out transitioning to operational
1772 * @ipr_cmd: ipr command struct
1774 * This function blocks host requests and initiates an
1780 static void ipr_oper_timeout(struct ipr_cmnd *ipr_cmd)
1782 unsigned long lock_flags = 0;
1783 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
1786 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
1788 ioa_cfg->errors_logged++;
1789 dev_err(&ioa_cfg->pdev->dev,
1790 "Adapter timed out transitioning to operational.\n");
1792 if (WAIT_FOR_DUMP == ioa_cfg->sdt_state)
1793 ioa_cfg->sdt_state = GET_DUMP;
1795 if (!ioa_cfg->in_reset_reload || ioa_cfg->reset_cmd == ipr_cmd) {
1797 ioa_cfg->reset_retries += IPR_NUM_RESET_RELOAD_RETRIES;
1798 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
1801 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
1806 * ipr_reset_reload - Reset/Reload the IOA
1807 * @ioa_cfg: ioa config struct
1808 * @shutdown_type: shutdown type
1810 * This function resets the adapter and re-initializes it.
1811 * This function assumes that all new host commands have been stopped.
1815 static int ipr_reset_reload(struct ipr_ioa_cfg *ioa_cfg,
1816 enum ipr_shutdown_type shutdown_type)
1818 if (!ioa_cfg->in_reset_reload)
1819 ipr_initiate_ioa_reset(ioa_cfg, shutdown_type);
1821 spin_unlock_irq(ioa_cfg->host->host_lock);
1822 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
1823 spin_lock_irq(ioa_cfg->host->host_lock);
1825 /* If we got hit with a host reset while we were already resetting
1826 the adapter for some reason, and the reset failed. */
1827 if (ioa_cfg->ioa_is_dead) {
1836 * ipr_find_ses_entry - Find matching SES in SES table
1837 * @res: resource entry struct of SES
1840 * pointer to SES table entry / NULL on failure
1842 static const struct ipr_ses_table_entry *
1843 ipr_find_ses_entry(struct ipr_resource_entry *res)
1846 const struct ipr_ses_table_entry *ste = ipr_ses_table;
1848 for (i = 0; i < ARRAY_SIZE(ipr_ses_table); i++, ste++) {
1849 for (j = 0, matches = 0; j < IPR_PROD_ID_LEN; j++) {
1850 if (ste->compare_product_id_byte[j] == 'X') {
1851 if (res->cfgte.std_inq_data.vpids.product_id[j] == ste->product_id[j])
1859 if (matches == IPR_PROD_ID_LEN)
1867 * ipr_get_max_scsi_speed - Determine max SCSI speed for a given bus
1868 * @ioa_cfg: ioa config struct
1870 * @bus_width: bus width
1873 * SCSI bus speed in units of 100KHz, 1600 is 160 MHz
1874 * For a 2-byte wide SCSI bus, the maximum transfer speed is
1875 * twice the maximum transfer rate (e.g. for a wide enabled bus,
1876 * max 160MHz = max 320MB/sec).
1878 static u32 ipr_get_max_scsi_speed(struct ipr_ioa_cfg *ioa_cfg, u8 bus, u8 bus_width)
1880 struct ipr_resource_entry *res;
1881 const struct ipr_ses_table_entry *ste;
1882 u32 max_xfer_rate = IPR_MAX_SCSI_RATE(bus_width);
1884 /* Loop through each config table entry in the config table buffer */
1885 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) {
1886 if (!(IPR_IS_SES_DEVICE(res->cfgte.std_inq_data)))
1889 if (bus != res->cfgte.res_addr.bus)
1892 if (!(ste = ipr_find_ses_entry(res)))
1895 max_xfer_rate = (ste->max_bus_speed_limit * 10) / (bus_width / 8);
1898 return max_xfer_rate;
1902 * ipr_wait_iodbg_ack - Wait for an IODEBUG ACK from the IOA
1903 * @ioa_cfg: ioa config struct
1904 * @max_delay: max delay in micro-seconds to wait
1906 * Waits for an IODEBUG ACK from the IOA, doing busy looping.
1909 * 0 on success / other on failure
1911 static int ipr_wait_iodbg_ack(struct ipr_ioa_cfg *ioa_cfg, int max_delay)
1913 volatile u32 pcii_reg;
1916 /* Read interrupt reg until IOA signals IO Debug Acknowledge */
1917 while (delay < max_delay) {
1918 pcii_reg = readl(ioa_cfg->regs.sense_interrupt_reg);
1920 if (pcii_reg & IPR_PCII_IO_DEBUG_ACKNOWLEDGE)
1923 /* udelay cannot be used if delay is more than a few milliseconds */
1924 if ((delay / 1000) > MAX_UDELAY_MS)
1925 mdelay(delay / 1000);
1935 * ipr_get_ldump_data_section - Dump IOA memory
1936 * @ioa_cfg: ioa config struct
1937 * @start_addr: adapter address to dump
1938 * @dest: destination kernel buffer
1939 * @length_in_words: length to dump in 4 byte words
1942 * 0 on success / -EIO on failure
1944 static int ipr_get_ldump_data_section(struct ipr_ioa_cfg *ioa_cfg,
1946 __be32 *dest, u32 length_in_words)
1948 volatile u32 temp_pcii_reg;
1951 /* Write IOA interrupt reg starting LDUMP state */
1952 writel((IPR_UPROCI_RESET_ALERT | IPR_UPROCI_IO_DEBUG_ALERT),
1953 ioa_cfg->regs.set_uproc_interrupt_reg);
1955 /* Wait for IO debug acknowledge */
1956 if (ipr_wait_iodbg_ack(ioa_cfg,
1957 IPR_LDUMP_MAX_LONG_ACK_DELAY_IN_USEC)) {
1958 dev_err(&ioa_cfg->pdev->dev,
1959 "IOA dump long data transfer timeout\n");
1963 /* Signal LDUMP interlocked - clear IO debug ack */
1964 writel(IPR_PCII_IO_DEBUG_ACKNOWLEDGE,
1965 ioa_cfg->regs.clr_interrupt_reg);
1967 /* Write Mailbox with starting address */
1968 writel(start_addr, ioa_cfg->ioa_mailbox);
1970 /* Signal address valid - clear IOA Reset alert */
1971 writel(IPR_UPROCI_RESET_ALERT,
1972 ioa_cfg->regs.clr_uproc_interrupt_reg);
1974 for (i = 0; i < length_in_words; i++) {
1975 /* Wait for IO debug acknowledge */
1976 if (ipr_wait_iodbg_ack(ioa_cfg,
1977 IPR_LDUMP_MAX_SHORT_ACK_DELAY_IN_USEC)) {
1978 dev_err(&ioa_cfg->pdev->dev,
1979 "IOA dump short data transfer timeout\n");
1983 /* Read data from mailbox and increment destination pointer */
1984 *dest = cpu_to_be32(readl(ioa_cfg->ioa_mailbox));
1987 /* For all but the last word of data, signal data received */
1988 if (i < (length_in_words - 1)) {
1989 /* Signal dump data received - Clear IO debug Ack */
1990 writel(IPR_PCII_IO_DEBUG_ACKNOWLEDGE,
1991 ioa_cfg->regs.clr_interrupt_reg);
1995 /* Signal end of block transfer. Set reset alert then clear IO debug ack */
1996 writel(IPR_UPROCI_RESET_ALERT,
1997 ioa_cfg->regs.set_uproc_interrupt_reg);
1999 writel(IPR_UPROCI_IO_DEBUG_ALERT,
2000 ioa_cfg->regs.clr_uproc_interrupt_reg);
2002 /* Signal dump data received - Clear IO debug Ack */
2003 writel(IPR_PCII_IO_DEBUG_ACKNOWLEDGE,
2004 ioa_cfg->regs.clr_interrupt_reg);
2006 /* Wait for IOA to signal LDUMP exit - IOA reset alert will be cleared */
2007 while (delay < IPR_LDUMP_MAX_SHORT_ACK_DELAY_IN_USEC) {
2009 readl(ioa_cfg->regs.sense_uproc_interrupt_reg);
2011 if (!(temp_pcii_reg & IPR_UPROCI_RESET_ALERT))
2021 #ifdef CONFIG_SCSI_IPR_DUMP
2023 * ipr_sdt_copy - Copy Smart Dump Table to kernel buffer
2024 * @ioa_cfg: ioa config struct
2025 * @pci_address: adapter address
2026 * @length: length of data to copy
2028 * Copy data from PCI adapter to kernel buffer.
2029 * Note: length MUST be a 4 byte multiple
2031 * 0 on success / other on failure
2033 static int ipr_sdt_copy(struct ipr_ioa_cfg *ioa_cfg,
2034 unsigned long pci_address, u32 length)
2036 int bytes_copied = 0;
2037 int cur_len, rc, rem_len, rem_page_len;
2039 unsigned long lock_flags = 0;
2040 struct ipr_ioa_dump *ioa_dump = &ioa_cfg->dump->ioa_dump;
2042 while (bytes_copied < length &&
2043 (ioa_dump->hdr.len + bytes_copied) < IPR_MAX_IOA_DUMP_SIZE) {
2044 if (ioa_dump->page_offset >= PAGE_SIZE ||
2045 ioa_dump->page_offset == 0) {
2046 page = (__be32 *)__get_free_page(GFP_ATOMIC);
2050 return bytes_copied;
2053 ioa_dump->page_offset = 0;
2054 ioa_dump->ioa_data[ioa_dump->next_page_index] = page;
2055 ioa_dump->next_page_index++;
2057 page = ioa_dump->ioa_data[ioa_dump->next_page_index - 1];
2059 rem_len = length - bytes_copied;
2060 rem_page_len = PAGE_SIZE - ioa_dump->page_offset;
2061 cur_len = min(rem_len, rem_page_len);
2063 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
2064 if (ioa_cfg->sdt_state == ABORT_DUMP) {
2067 rc = ipr_get_ldump_data_section(ioa_cfg,
2068 pci_address + bytes_copied,
2069 &page[ioa_dump->page_offset / 4],
2070 (cur_len / sizeof(u32)));
2072 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
2075 ioa_dump->page_offset += cur_len;
2076 bytes_copied += cur_len;
2084 return bytes_copied;
2088 * ipr_init_dump_entry_hdr - Initialize a dump entry header.
2089 * @hdr: dump entry header struct
2094 static void ipr_init_dump_entry_hdr(struct ipr_dump_entry_header *hdr)
2096 hdr->eye_catcher = IPR_DUMP_EYE_CATCHER;
2098 hdr->offset = sizeof(*hdr);
2099 hdr->status = IPR_DUMP_STATUS_SUCCESS;
2103 * ipr_dump_ioa_type_data - Fill in the adapter type in the dump.
2104 * @ioa_cfg: ioa config struct
2105 * @driver_dump: driver dump struct
2110 static void ipr_dump_ioa_type_data(struct ipr_ioa_cfg *ioa_cfg,
2111 struct ipr_driver_dump *driver_dump)
2113 struct ipr_inquiry_page3 *ucode_vpd = &ioa_cfg->vpd_cbs->page3_data;
2115 ipr_init_dump_entry_hdr(&driver_dump->ioa_type_entry.hdr);
2116 driver_dump->ioa_type_entry.hdr.len =
2117 sizeof(struct ipr_dump_ioa_type_entry) -
2118 sizeof(struct ipr_dump_entry_header);
2119 driver_dump->ioa_type_entry.hdr.data_type = IPR_DUMP_DATA_TYPE_BINARY;
2120 driver_dump->ioa_type_entry.hdr.id = IPR_DUMP_DRIVER_TYPE_ID;
2121 driver_dump->ioa_type_entry.type = ioa_cfg->type;
2122 driver_dump->ioa_type_entry.fw_version = (ucode_vpd->major_release << 24) |
2123 (ucode_vpd->card_type << 16) | (ucode_vpd->minor_release[0] << 8) |
2124 ucode_vpd->minor_release[1];
2125 driver_dump->hdr.num_entries++;
2129 * ipr_dump_version_data - Fill in the driver version in the dump.
2130 * @ioa_cfg: ioa config struct
2131 * @driver_dump: driver dump struct
2136 static void ipr_dump_version_data(struct ipr_ioa_cfg *ioa_cfg,
2137 struct ipr_driver_dump *driver_dump)
2139 ipr_init_dump_entry_hdr(&driver_dump->version_entry.hdr);
2140 driver_dump->version_entry.hdr.len =
2141 sizeof(struct ipr_dump_version_entry) -
2142 sizeof(struct ipr_dump_entry_header);
2143 driver_dump->version_entry.hdr.data_type = IPR_DUMP_DATA_TYPE_ASCII;
2144 driver_dump->version_entry.hdr.id = IPR_DUMP_DRIVER_VERSION_ID;
2145 strcpy(driver_dump->version_entry.version, IPR_DRIVER_VERSION);
2146 driver_dump->hdr.num_entries++;
2150 * ipr_dump_trace_data - Fill in the IOA trace in the dump.
2151 * @ioa_cfg: ioa config struct
2152 * @driver_dump: driver dump struct
2157 static void ipr_dump_trace_data(struct ipr_ioa_cfg *ioa_cfg,
2158 struct ipr_driver_dump *driver_dump)
2160 ipr_init_dump_entry_hdr(&driver_dump->trace_entry.hdr);
2161 driver_dump->trace_entry.hdr.len =
2162 sizeof(struct ipr_dump_trace_entry) -
2163 sizeof(struct ipr_dump_entry_header);
2164 driver_dump->trace_entry.hdr.data_type = IPR_DUMP_DATA_TYPE_BINARY;
2165 driver_dump->trace_entry.hdr.id = IPR_DUMP_TRACE_ID;
2166 memcpy(driver_dump->trace_entry.trace, ioa_cfg->trace, IPR_TRACE_SIZE);
2167 driver_dump->hdr.num_entries++;
2171 * ipr_dump_location_data - Fill in the IOA location in the dump.
2172 * @ioa_cfg: ioa config struct
2173 * @driver_dump: driver dump struct
2178 static void ipr_dump_location_data(struct ipr_ioa_cfg *ioa_cfg,
2179 struct ipr_driver_dump *driver_dump)
2181 ipr_init_dump_entry_hdr(&driver_dump->location_entry.hdr);
2182 driver_dump->location_entry.hdr.len =
2183 sizeof(struct ipr_dump_location_entry) -
2184 sizeof(struct ipr_dump_entry_header);
2185 driver_dump->location_entry.hdr.data_type = IPR_DUMP_DATA_TYPE_ASCII;
2186 driver_dump->location_entry.hdr.id = IPR_DUMP_LOCATION_ID;
2187 strcpy(driver_dump->location_entry.location, dev_name(&ioa_cfg->pdev->dev));
2188 driver_dump->hdr.num_entries++;
2192 * ipr_get_ioa_dump - Perform a dump of the driver and adapter.
2193 * @ioa_cfg: ioa config struct
2194 * @dump: dump struct
2199 static void ipr_get_ioa_dump(struct ipr_ioa_cfg *ioa_cfg, struct ipr_dump *dump)
2201 unsigned long start_addr, sdt_word;
2202 unsigned long lock_flags = 0;
2203 struct ipr_driver_dump *driver_dump = &dump->driver_dump;
2204 struct ipr_ioa_dump *ioa_dump = &dump->ioa_dump;
2205 u32 num_entries, start_off, end_off;
2206 u32 bytes_to_copy, bytes_copied, rc;
2207 struct ipr_sdt *sdt;
2212 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
2214 if (ioa_cfg->sdt_state != GET_DUMP) {
2215 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
2219 start_addr = readl(ioa_cfg->ioa_mailbox);
2221 if (!ipr_sdt_is_fmt2(start_addr)) {
2222 dev_err(&ioa_cfg->pdev->dev,
2223 "Invalid dump table format: %lx\n", start_addr);
2224 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
2228 dev_err(&ioa_cfg->pdev->dev, "Dump of IOA initiated\n");
2230 driver_dump->hdr.eye_catcher = IPR_DUMP_EYE_CATCHER;
2232 /* Initialize the overall dump header */
2233 driver_dump->hdr.len = sizeof(struct ipr_driver_dump);
2234 driver_dump->hdr.num_entries = 1;
2235 driver_dump->hdr.first_entry_offset = sizeof(struct ipr_dump_header);
2236 driver_dump->hdr.status = IPR_DUMP_STATUS_SUCCESS;
2237 driver_dump->hdr.os = IPR_DUMP_OS_LINUX;
2238 driver_dump->hdr.driver_name = IPR_DUMP_DRIVER_NAME;
2240 ipr_dump_version_data(ioa_cfg, driver_dump);
2241 ipr_dump_location_data(ioa_cfg, driver_dump);
2242 ipr_dump_ioa_type_data(ioa_cfg, driver_dump);
2243 ipr_dump_trace_data(ioa_cfg, driver_dump);
2245 /* Update dump_header */
2246 driver_dump->hdr.len += sizeof(struct ipr_dump_entry_header);
2248 /* IOA Dump entry */
2249 ipr_init_dump_entry_hdr(&ioa_dump->hdr);
2250 ioa_dump->format = IPR_SDT_FMT2;
2251 ioa_dump->hdr.len = 0;
2252 ioa_dump->hdr.data_type = IPR_DUMP_DATA_TYPE_BINARY;
2253 ioa_dump->hdr.id = IPR_DUMP_IOA_DUMP_ID;
2255 /* First entries in sdt are actually a list of dump addresses and
2256 lengths to gather the real dump data. sdt represents the pointer
2257 to the ioa generated dump table. Dump data will be extracted based
2258 on entries in this table */
2259 sdt = &ioa_dump->sdt;
2261 rc = ipr_get_ldump_data_section(ioa_cfg, start_addr, (__be32 *)sdt,
2262 sizeof(struct ipr_sdt) / sizeof(__be32));
2264 /* Smart Dump table is ready to use and the first entry is valid */
2265 if (rc || (be32_to_cpu(sdt->hdr.state) != IPR_FMT2_SDT_READY_TO_USE)) {
2266 dev_err(&ioa_cfg->pdev->dev,
2267 "Dump of IOA failed. Dump table not valid: %d, %X.\n",
2268 rc, be32_to_cpu(sdt->hdr.state));
2269 driver_dump->hdr.status = IPR_DUMP_STATUS_FAILED;
2270 ioa_cfg->sdt_state = DUMP_OBTAINED;
2271 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
2275 num_entries = be32_to_cpu(sdt->hdr.num_entries_used);
2277 if (num_entries > IPR_NUM_SDT_ENTRIES)
2278 num_entries = IPR_NUM_SDT_ENTRIES;
2280 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
2282 for (i = 0; i < num_entries; i++) {
2283 if (ioa_dump->hdr.len > IPR_MAX_IOA_DUMP_SIZE) {
2284 driver_dump->hdr.status = IPR_DUMP_STATUS_QUAL_SUCCESS;
2288 if (sdt->entry[i].flags & IPR_SDT_VALID_ENTRY) {
2289 sdt_word = be32_to_cpu(sdt->entry[i].bar_str_offset);
2290 start_off = sdt_word & IPR_FMT2_MBX_ADDR_MASK;
2291 end_off = be32_to_cpu(sdt->entry[i].end_offset);
2293 if (ipr_sdt_is_fmt2(sdt_word) && sdt_word) {
2294 bytes_to_copy = end_off - start_off;
2295 if (bytes_to_copy > IPR_MAX_IOA_DUMP_SIZE) {
2296 sdt->entry[i].flags &= ~IPR_SDT_VALID_ENTRY;
2300 /* Copy data from adapter to driver buffers */
2301 bytes_copied = ipr_sdt_copy(ioa_cfg, sdt_word,
2304 ioa_dump->hdr.len += bytes_copied;
2306 if (bytes_copied != bytes_to_copy) {
2307 driver_dump->hdr.status = IPR_DUMP_STATUS_QUAL_SUCCESS;
2314 dev_err(&ioa_cfg->pdev->dev, "Dump of IOA completed.\n");
2316 /* Update dump_header */
2317 driver_dump->hdr.len += ioa_dump->hdr.len;
2319 ioa_cfg->sdt_state = DUMP_OBTAINED;
2324 #define ipr_get_ioa_dump(ioa_cfg, dump) do { } while(0)
2328 * ipr_release_dump - Free adapter dump memory
2329 * @kref: kref struct
2334 static void ipr_release_dump(struct kref *kref)
2336 struct ipr_dump *dump = container_of(kref,struct ipr_dump,kref);
2337 struct ipr_ioa_cfg *ioa_cfg = dump->ioa_cfg;
2338 unsigned long lock_flags = 0;
2342 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
2343 ioa_cfg->dump = NULL;
2344 ioa_cfg->sdt_state = INACTIVE;
2345 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
2347 for (i = 0; i < dump->ioa_dump.next_page_index; i++)
2348 free_page((unsigned long) dump->ioa_dump.ioa_data[i]);
2355 * ipr_worker_thread - Worker thread
2356 * @work: ioa config struct
2358 * Called at task level from a work thread. This function takes care
2359 * of adding and removing device from the mid-layer as configuration
2360 * changes are detected by the adapter.
2365 static void ipr_worker_thread(struct work_struct *work)
2367 unsigned long lock_flags;
2368 struct ipr_resource_entry *res;
2369 struct scsi_device *sdev;
2370 struct ipr_dump *dump;
2371 struct ipr_ioa_cfg *ioa_cfg =
2372 container_of(work, struct ipr_ioa_cfg, work_q);
2373 u8 bus, target, lun;
2377 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
2379 if (ioa_cfg->sdt_state == GET_DUMP) {
2380 dump = ioa_cfg->dump;
2382 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
2385 kref_get(&dump->kref);
2386 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
2387 ipr_get_ioa_dump(ioa_cfg, dump);
2388 kref_put(&dump->kref, ipr_release_dump);
2390 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
2391 if (ioa_cfg->sdt_state == DUMP_OBTAINED)
2392 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
2393 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
2400 if (!ioa_cfg->allow_cmds || !ioa_cfg->allow_ml_add_del) {
2401 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
2405 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) {
2406 if (res->del_from_ml && res->sdev) {
2409 if (!scsi_device_get(sdev)) {
2410 list_move_tail(&res->queue, &ioa_cfg->free_res_q);
2411 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
2412 scsi_remove_device(sdev);
2413 scsi_device_put(sdev);
2414 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
2421 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) {
2422 if (res->add_to_ml) {
2423 bus = res->cfgte.res_addr.bus;
2424 target = res->cfgte.res_addr.target;
2425 lun = res->cfgte.res_addr.lun;
2427 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
2428 scsi_add_device(ioa_cfg->host, bus, target, lun);
2429 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
2434 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
2435 kobject_uevent(&ioa_cfg->host->shost_dev.kobj, KOBJ_CHANGE);
2439 #ifdef CONFIG_SCSI_IPR_TRACE
2441 * ipr_read_trace - Dump the adapter trace
2442 * @kobj: kobject struct
2443 * @bin_attr: bin_attribute struct
2446 * @count: buffer size
2449 * number of bytes printed to buffer
2451 static ssize_t ipr_read_trace(struct kobject *kobj,
2452 struct bin_attribute *bin_attr,
2453 char *buf, loff_t off, size_t count)
2455 struct device *dev = container_of(kobj, struct device, kobj);
2456 struct Scsi_Host *shost = class_to_shost(dev);
2457 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
2458 unsigned long lock_flags = 0;
2461 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
2462 ret = memory_read_from_buffer(buf, count, &off, ioa_cfg->trace,
2464 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
2469 static struct bin_attribute ipr_trace_attr = {
2475 .read = ipr_read_trace,
2479 static const struct {
2480 enum ipr_cache_state state;
2482 } cache_state [] = {
2483 { CACHE_NONE, "none" },
2484 { CACHE_DISABLED, "disabled" },
2485 { CACHE_ENABLED, "enabled" }
2489 * ipr_show_write_caching - Show the write caching attribute
2490 * @dev: device struct
2494 * number of bytes printed to buffer
2496 static ssize_t ipr_show_write_caching(struct device *dev,
2497 struct device_attribute *attr, char *buf)
2499 struct Scsi_Host *shost = class_to_shost(dev);
2500 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
2501 unsigned long lock_flags = 0;
2504 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
2505 for (i = 0; i < ARRAY_SIZE(cache_state); i++) {
2506 if (cache_state[i].state == ioa_cfg->cache_state) {
2507 len = snprintf(buf, PAGE_SIZE, "%s\n", cache_state[i].name);
2511 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
2517 * ipr_store_write_caching - Enable/disable adapter write cache
2518 * @dev: device struct
2520 * @count: buffer size
2522 * This function will enable/disable adapter write cache.
2525 * count on success / other on failure
2527 static ssize_t ipr_store_write_caching(struct device *dev,
2528 struct device_attribute *attr,
2529 const char *buf, size_t count)
2531 struct Scsi_Host *shost = class_to_shost(dev);
2532 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
2533 unsigned long lock_flags = 0;
2534 enum ipr_cache_state new_state = CACHE_INVALID;
2537 if (!capable(CAP_SYS_ADMIN))
2539 if (ioa_cfg->cache_state == CACHE_NONE)
2542 for (i = 0; i < ARRAY_SIZE(cache_state); i++) {
2543 if (!strncmp(cache_state[i].name, buf, strlen(cache_state[i].name))) {
2544 new_state = cache_state[i].state;
2549 if (new_state != CACHE_DISABLED && new_state != CACHE_ENABLED)
2552 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
2553 if (ioa_cfg->cache_state == new_state) {
2554 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
2558 ioa_cfg->cache_state = new_state;
2559 dev_info(&ioa_cfg->pdev->dev, "%s adapter write cache.\n",
2560 new_state == CACHE_ENABLED ? "Enabling" : "Disabling");
2561 if (!ioa_cfg->in_reset_reload)
2562 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NORMAL);
2563 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
2564 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
2569 static struct device_attribute ipr_ioa_cache_attr = {
2571 .name = "write_cache",
2572 .mode = S_IRUGO | S_IWUSR,
2574 .show = ipr_show_write_caching,
2575 .store = ipr_store_write_caching
2579 * ipr_show_fw_version - Show the firmware version
2580 * @dev: class device struct
2584 * number of bytes printed to buffer
2586 static ssize_t ipr_show_fw_version(struct device *dev,
2587 struct device_attribute *attr, char *buf)
2589 struct Scsi_Host *shost = class_to_shost(dev);
2590 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
2591 struct ipr_inquiry_page3 *ucode_vpd = &ioa_cfg->vpd_cbs->page3_data;
2592 unsigned long lock_flags = 0;
2595 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
2596 len = snprintf(buf, PAGE_SIZE, "%02X%02X%02X%02X\n",
2597 ucode_vpd->major_release, ucode_vpd->card_type,
2598 ucode_vpd->minor_release[0],
2599 ucode_vpd->minor_release[1]);
2600 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
2604 static struct device_attribute ipr_fw_version_attr = {
2606 .name = "fw_version",
2609 .show = ipr_show_fw_version,
2613 * ipr_show_log_level - Show the adapter's error logging level
2614 * @dev: class device struct
2618 * number of bytes printed to buffer
2620 static ssize_t ipr_show_log_level(struct device *dev,
2621 struct device_attribute *attr, char *buf)
2623 struct Scsi_Host *shost = class_to_shost(dev);
2624 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
2625 unsigned long lock_flags = 0;
2628 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
2629 len = snprintf(buf, PAGE_SIZE, "%d\n", ioa_cfg->log_level);
2630 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
2635 * ipr_store_log_level - Change the adapter's error logging level
2636 * @dev: class device struct
2640 * number of bytes printed to buffer
2642 static ssize_t ipr_store_log_level(struct device *dev,
2643 struct device_attribute *attr,
2644 const char *buf, size_t count)
2646 struct Scsi_Host *shost = class_to_shost(dev);
2647 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
2648 unsigned long lock_flags = 0;
2650 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
2651 ioa_cfg->log_level = simple_strtoul(buf, NULL, 10);
2652 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
2656 static struct device_attribute ipr_log_level_attr = {
2658 .name = "log_level",
2659 .mode = S_IRUGO | S_IWUSR,
2661 .show = ipr_show_log_level,
2662 .store = ipr_store_log_level
2666 * ipr_store_diagnostics - IOA Diagnostics interface
2667 * @dev: device struct
2669 * @count: buffer size
2671 * This function will reset the adapter and wait a reasonable
2672 * amount of time for any errors that the adapter might log.
2675 * count on success / other on failure
2677 static ssize_t ipr_store_diagnostics(struct device *dev,
2678 struct device_attribute *attr,
2679 const char *buf, size_t count)
2681 struct Scsi_Host *shost = class_to_shost(dev);
2682 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
2683 unsigned long lock_flags = 0;
2686 if (!capable(CAP_SYS_ADMIN))
2689 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
2690 while(ioa_cfg->in_reset_reload) {
2691 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
2692 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
2693 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
2696 ioa_cfg->errors_logged = 0;
2697 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NORMAL);
2699 if (ioa_cfg->in_reset_reload) {
2700 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
2701 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
2703 /* Wait for a second for any errors to be logged */
2706 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
2710 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
2711 if (ioa_cfg->in_reset_reload || ioa_cfg->errors_logged)
2713 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
2718 static struct device_attribute ipr_diagnostics_attr = {
2720 .name = "run_diagnostics",
2723 .store = ipr_store_diagnostics
2727 * ipr_show_adapter_state - Show the adapter's state
2728 * @class_dev: device struct
2732 * number of bytes printed to buffer
2734 static ssize_t ipr_show_adapter_state(struct device *dev,
2735 struct device_attribute *attr, char *buf)
2737 struct Scsi_Host *shost = class_to_shost(dev);
2738 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
2739 unsigned long lock_flags = 0;
2742 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
2743 if (ioa_cfg->ioa_is_dead)
2744 len = snprintf(buf, PAGE_SIZE, "offline\n");
2746 len = snprintf(buf, PAGE_SIZE, "online\n");
2747 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
2752 * ipr_store_adapter_state - Change adapter state
2753 * @dev: device struct
2755 * @count: buffer size
2757 * This function will change the adapter's state.
2760 * count on success / other on failure
2762 static ssize_t ipr_store_adapter_state(struct device *dev,
2763 struct device_attribute *attr,
2764 const char *buf, size_t count)
2766 struct Scsi_Host *shost = class_to_shost(dev);
2767 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
2768 unsigned long lock_flags;
2771 if (!capable(CAP_SYS_ADMIN))
2774 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
2775 if (ioa_cfg->ioa_is_dead && !strncmp(buf, "online", 6)) {
2776 ioa_cfg->ioa_is_dead = 0;
2777 ioa_cfg->reset_retries = 0;
2778 ioa_cfg->in_ioa_bringdown = 0;
2779 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
2781 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
2782 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
2787 static struct device_attribute ipr_ioa_state_attr = {
2789 .name = "online_state",
2790 .mode = S_IRUGO | S_IWUSR,
2792 .show = ipr_show_adapter_state,
2793 .store = ipr_store_adapter_state
2797 * ipr_store_reset_adapter - Reset the adapter
2798 * @dev: device struct
2800 * @count: buffer size
2802 * This function will reset the adapter.
2805 * count on success / other on failure
2807 static ssize_t ipr_store_reset_adapter(struct device *dev,
2808 struct device_attribute *attr,
2809 const char *buf, size_t count)
2811 struct Scsi_Host *shost = class_to_shost(dev);
2812 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
2813 unsigned long lock_flags;
2816 if (!capable(CAP_SYS_ADMIN))
2819 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
2820 if (!ioa_cfg->in_reset_reload)
2821 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NORMAL);
2822 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
2823 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
2828 static struct device_attribute ipr_ioa_reset_attr = {
2830 .name = "reset_host",
2833 .store = ipr_store_reset_adapter
2837 * ipr_alloc_ucode_buffer - Allocates a microcode download buffer
2838 * @buf_len: buffer length
2840 * Allocates a DMA'able buffer in chunks and assembles a scatter/gather
2841 * list to use for microcode download
2844 * pointer to sglist / NULL on failure
2846 static struct ipr_sglist *ipr_alloc_ucode_buffer(int buf_len)
2848 int sg_size, order, bsize_elem, num_elem, i, j;
2849 struct ipr_sglist *sglist;
2850 struct scatterlist *scatterlist;
2853 /* Get the minimum size per scatter/gather element */
2854 sg_size = buf_len / (IPR_MAX_SGLIST - 1);
2856 /* Get the actual size per element */
2857 order = get_order(sg_size);
2859 /* Determine the actual number of bytes per element */
2860 bsize_elem = PAGE_SIZE * (1 << order);
2862 /* Determine the actual number of sg entries needed */
2863 if (buf_len % bsize_elem)
2864 num_elem = (buf_len / bsize_elem) + 1;
2866 num_elem = buf_len / bsize_elem;
2868 /* Allocate a scatter/gather list for the DMA */
2869 sglist = kzalloc(sizeof(struct ipr_sglist) +
2870 (sizeof(struct scatterlist) * (num_elem - 1)),
2873 if (sglist == NULL) {
2878 scatterlist = sglist->scatterlist;
2879 sg_init_table(scatterlist, num_elem);
2881 sglist->order = order;
2882 sglist->num_sg = num_elem;
2884 /* Allocate a bunch of sg elements */
2885 for (i = 0; i < num_elem; i++) {
2886 page = alloc_pages(GFP_KERNEL, order);
2890 /* Free up what we already allocated */
2891 for (j = i - 1; j >= 0; j--)
2892 __free_pages(sg_page(&scatterlist[j]), order);
2897 sg_set_page(&scatterlist[i], page, 0, 0);
2904 * ipr_free_ucode_buffer - Frees a microcode download buffer
2905 * @p_dnld: scatter/gather list pointer
2907 * Free a DMA'able ucode download buffer previously allocated with
2908 * ipr_alloc_ucode_buffer
2913 static void ipr_free_ucode_buffer(struct ipr_sglist *sglist)
2917 for (i = 0; i < sglist->num_sg; i++)
2918 __free_pages(sg_page(&sglist->scatterlist[i]), sglist->order);
2924 * ipr_copy_ucode_buffer - Copy user buffer to kernel buffer
2925 * @sglist: scatter/gather list pointer
2926 * @buffer: buffer pointer
2927 * @len: buffer length
2929 * Copy a microcode image from a user buffer into a buffer allocated by
2930 * ipr_alloc_ucode_buffer
2933 * 0 on success / other on failure
2935 static int ipr_copy_ucode_buffer(struct ipr_sglist *sglist,
2936 u8 *buffer, u32 len)
2938 int bsize_elem, i, result = 0;
2939 struct scatterlist *scatterlist;
2942 /* Determine the actual number of bytes per element */
2943 bsize_elem = PAGE_SIZE * (1 << sglist->order);
2945 scatterlist = sglist->scatterlist;
2947 for (i = 0; i < (len / bsize_elem); i++, buffer += bsize_elem) {
2948 struct page *page = sg_page(&scatterlist[i]);
2951 memcpy(kaddr, buffer, bsize_elem);
2954 scatterlist[i].length = bsize_elem;
2962 if (len % bsize_elem) {
2963 struct page *page = sg_page(&scatterlist[i]);
2966 memcpy(kaddr, buffer, len % bsize_elem);
2969 scatterlist[i].length = len % bsize_elem;
2972 sglist->buffer_len = len;
2977 * ipr_build_ucode_ioadl - Build a microcode download IOADL
2978 * @ipr_cmd: ipr command struct
2979 * @sglist: scatter/gather list
2981 * Builds a microcode download IOA data list (IOADL).
2984 static void ipr_build_ucode_ioadl(struct ipr_cmnd *ipr_cmd,
2985 struct ipr_sglist *sglist)
2987 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
2988 struct ipr_ioadl_desc *ioadl = ipr_cmd->ioadl;
2989 struct scatterlist *scatterlist = sglist->scatterlist;
2992 ipr_cmd->dma_use_sg = sglist->num_dma_sg;
2993 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ;
2994 ioarcb->write_data_transfer_length = cpu_to_be32(sglist->buffer_len);
2995 ioarcb->write_ioadl_len =
2996 cpu_to_be32(sizeof(struct ipr_ioadl_desc) * ipr_cmd->dma_use_sg);
2998 for (i = 0; i < ipr_cmd->dma_use_sg; i++) {
2999 ioadl[i].flags_and_data_len =
3000 cpu_to_be32(IPR_IOADL_FLAGS_WRITE | sg_dma_len(&scatterlist[i]));
3002 cpu_to_be32(sg_dma_address(&scatterlist[i]));
3005 ioadl[i-1].flags_and_data_len |=
3006 cpu_to_be32(IPR_IOADL_FLAGS_LAST);
3010 * ipr_update_ioa_ucode - Update IOA's microcode
3011 * @ioa_cfg: ioa config struct
3012 * @sglist: scatter/gather list
3014 * Initiate an adapter reset to update the IOA's microcode
3017 * 0 on success / -EIO on failure
3019 static int ipr_update_ioa_ucode(struct ipr_ioa_cfg *ioa_cfg,
3020 struct ipr_sglist *sglist)
3022 unsigned long lock_flags;
3024 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3025 while(ioa_cfg->in_reset_reload) {
3026 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3027 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
3028 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3031 if (ioa_cfg->ucode_sglist) {
3032 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3033 dev_err(&ioa_cfg->pdev->dev,
3034 "Microcode download already in progress\n");
3038 sglist->num_dma_sg = pci_map_sg(ioa_cfg->pdev, sglist->scatterlist,
3039 sglist->num_sg, DMA_TO_DEVICE);
3041 if (!sglist->num_dma_sg) {
3042 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3043 dev_err(&ioa_cfg->pdev->dev,
3044 "Failed to map microcode download buffer!\n");
3048 ioa_cfg->ucode_sglist = sglist;
3049 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NORMAL);
3050 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3051 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
3053 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3054 ioa_cfg->ucode_sglist = NULL;
3055 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3060 * ipr_store_update_fw - Update the firmware on the adapter
3061 * @class_dev: device struct
3063 * @count: buffer size
3065 * This function will update the firmware on the adapter.
3068 * count on success / other on failure
3070 static ssize_t ipr_store_update_fw(struct device *dev,
3071 struct device_attribute *attr,
3072 const char *buf, size_t count)
3074 struct Scsi_Host *shost = class_to_shost(dev);
3075 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
3076 struct ipr_ucode_image_header *image_hdr;
3077 const struct firmware *fw_entry;
3078 struct ipr_sglist *sglist;
3081 int len, result, dnld_size;
3083 if (!capable(CAP_SYS_ADMIN))
3086 len = snprintf(fname, 99, "%s", buf);
3087 fname[len-1] = '\0';
3089 if(request_firmware(&fw_entry, fname, &ioa_cfg->pdev->dev)) {
3090 dev_err(&ioa_cfg->pdev->dev, "Firmware file %s not found\n", fname);
3094 image_hdr = (struct ipr_ucode_image_header *)fw_entry->data;
3096 if (be32_to_cpu(image_hdr->header_length) > fw_entry->size ||
3097 (ioa_cfg->vpd_cbs->page3_data.card_type &&
3098 ioa_cfg->vpd_cbs->page3_data.card_type != image_hdr->card_type)) {
3099 dev_err(&ioa_cfg->pdev->dev, "Invalid microcode buffer\n");
3100 release_firmware(fw_entry);
3104 src = (u8 *)image_hdr + be32_to_cpu(image_hdr->header_length);
3105 dnld_size = fw_entry->size - be32_to_cpu(image_hdr->header_length);
3106 sglist = ipr_alloc_ucode_buffer(dnld_size);
3109 dev_err(&ioa_cfg->pdev->dev, "Microcode buffer allocation failed\n");
3110 release_firmware(fw_entry);
3114 result = ipr_copy_ucode_buffer(sglist, src, dnld_size);
3117 dev_err(&ioa_cfg->pdev->dev,
3118 "Microcode buffer copy to DMA buffer failed\n");
3122 result = ipr_update_ioa_ucode(ioa_cfg, sglist);
3127 ipr_free_ucode_buffer(sglist);
3128 release_firmware(fw_entry);
3132 static struct device_attribute ipr_update_fw_attr = {
3134 .name = "update_fw",
3137 .store = ipr_store_update_fw
3140 static struct device_attribute *ipr_ioa_attrs[] = {
3141 &ipr_fw_version_attr,
3142 &ipr_log_level_attr,
3143 &ipr_diagnostics_attr,
3144 &ipr_ioa_state_attr,
3145 &ipr_ioa_reset_attr,
3146 &ipr_update_fw_attr,
3147 &ipr_ioa_cache_attr,
3151 #ifdef CONFIG_SCSI_IPR_DUMP
3153 * ipr_read_dump - Dump the adapter
3154 * @kobj: kobject struct
3155 * @bin_attr: bin_attribute struct
3158 * @count: buffer size
3161 * number of bytes printed to buffer
3163 static ssize_t ipr_read_dump(struct kobject *kobj,
3164 struct bin_attribute *bin_attr,
3165 char *buf, loff_t off, size_t count)
3167 struct device *cdev = container_of(kobj, struct device, kobj);
3168 struct Scsi_Host *shost = class_to_shost(cdev);
3169 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
3170 struct ipr_dump *dump;
3171 unsigned long lock_flags = 0;
3176 if (!capable(CAP_SYS_ADMIN))
3179 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3180 dump = ioa_cfg->dump;
3182 if (ioa_cfg->sdt_state != DUMP_OBTAINED || !dump) {
3183 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3186 kref_get(&dump->kref);
3187 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3189 if (off > dump->driver_dump.hdr.len) {
3190 kref_put(&dump->kref, ipr_release_dump);
3194 if (off + count > dump->driver_dump.hdr.len) {
3195 count = dump->driver_dump.hdr.len - off;
3199 if (count && off < sizeof(dump->driver_dump)) {
3200 if (off + count > sizeof(dump->driver_dump))
3201 len = sizeof(dump->driver_dump) - off;
3204 src = (u8 *)&dump->driver_dump + off;
3205 memcpy(buf, src, len);
3211 off -= sizeof(dump->driver_dump);
3213 if (count && off < offsetof(struct ipr_ioa_dump, ioa_data)) {
3214 if (off + count > offsetof(struct ipr_ioa_dump, ioa_data))
3215 len = offsetof(struct ipr_ioa_dump, ioa_data) - off;
3218 src = (u8 *)&dump->ioa_dump + off;
3219 memcpy(buf, src, len);
3225 off -= offsetof(struct ipr_ioa_dump, ioa_data);
3228 if ((off & PAGE_MASK) != ((off + count) & PAGE_MASK))
3229 len = PAGE_ALIGN(off) - off;
3232 src = (u8 *)dump->ioa_dump.ioa_data[(off & PAGE_MASK) >> PAGE_SHIFT];
3233 src += off & ~PAGE_MASK;
3234 memcpy(buf, src, len);
3240 kref_put(&dump->kref, ipr_release_dump);
3245 * ipr_alloc_dump - Prepare for adapter dump
3246 * @ioa_cfg: ioa config struct
3249 * 0 on success / other on failure
3251 static int ipr_alloc_dump(struct ipr_ioa_cfg *ioa_cfg)
3253 struct ipr_dump *dump;
3254 unsigned long lock_flags = 0;
3256 dump = kzalloc(sizeof(struct ipr_dump), GFP_KERNEL);
3259 ipr_err("Dump memory allocation failed\n");
3263 kref_init(&dump->kref);
3264 dump->ioa_cfg = ioa_cfg;
3266 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3268 if (INACTIVE != ioa_cfg->sdt_state) {
3269 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3274 ioa_cfg->dump = dump;
3275 ioa_cfg->sdt_state = WAIT_FOR_DUMP;
3276 if (ioa_cfg->ioa_is_dead && !ioa_cfg->dump_taken) {
3277 ioa_cfg->dump_taken = 1;
3278 schedule_work(&ioa_cfg->work_q);
3280 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3286 * ipr_free_dump - Free adapter dump memory
3287 * @ioa_cfg: ioa config struct
3290 * 0 on success / other on failure
3292 static int ipr_free_dump(struct ipr_ioa_cfg *ioa_cfg)
3294 struct ipr_dump *dump;
3295 unsigned long lock_flags = 0;
3299 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3300 dump = ioa_cfg->dump;
3302 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3306 ioa_cfg->dump = NULL;
3307 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3309 kref_put(&dump->kref, ipr_release_dump);
3316 * ipr_write_dump - Setup dump state of adapter
3317 * @kobj: kobject struct
3318 * @bin_attr: bin_attribute struct
3321 * @count: buffer size
3324 * number of bytes printed to buffer
3326 static ssize_t ipr_write_dump(struct kobject *kobj,
3327 struct bin_attribute *bin_attr,
3328 char *buf, loff_t off, size_t count)
3330 struct device *cdev = container_of(kobj, struct device, kobj);
3331 struct Scsi_Host *shost = class_to_shost(cdev);
3332 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata;
3335 if (!capable(CAP_SYS_ADMIN))
3339 rc = ipr_alloc_dump(ioa_cfg);
3340 else if (buf[0] == '0')
3341 rc = ipr_free_dump(ioa_cfg);
3351 static struct bin_attribute ipr_dump_attr = {
3354 .mode = S_IRUSR | S_IWUSR,
3357 .read = ipr_read_dump,
3358 .write = ipr_write_dump
3361 static int ipr_free_dump(struct ipr_ioa_cfg *ioa_cfg) { return 0; };
3365 * ipr_change_queue_depth - Change the device's queue depth
3366 * @sdev: scsi device struct
3367 * @qdepth: depth to set
3372 static int ipr_change_queue_depth(struct scsi_device *sdev, int qdepth)
3374 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)sdev->host->hostdata;
3375 struct ipr_resource_entry *res;
3376 unsigned long lock_flags = 0;
3378 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3379 res = (struct ipr_resource_entry *)sdev->hostdata;
3381 if (res && ipr_is_gata(res) && qdepth > IPR_MAX_CMD_PER_ATA_LUN)
3382 qdepth = IPR_MAX_CMD_PER_ATA_LUN;
3383 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3385 scsi_adjust_queue_depth(sdev, scsi_get_tag_type(sdev), qdepth);
3386 return sdev->queue_depth;
3390 * ipr_change_queue_type - Change the device's queue type
3391 * @dsev: scsi device struct
3392 * @tag_type: type of tags to use
3395 * actual queue type set
3397 static int ipr_change_queue_type(struct scsi_device *sdev, int tag_type)
3399 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)sdev->host->hostdata;
3400 struct ipr_resource_entry *res;
3401 unsigned long lock_flags = 0;
3403 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3404 res = (struct ipr_resource_entry *)sdev->hostdata;
3407 if (ipr_is_gscsi(res) && sdev->tagged_supported) {
3409 * We don't bother quiescing the device here since the
3410 * adapter firmware does it for us.
3412 scsi_set_tag_type(sdev, tag_type);
3415 scsi_activate_tcq(sdev, sdev->queue_depth);
3417 scsi_deactivate_tcq(sdev, sdev->queue_depth);
3423 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3428 * ipr_show_adapter_handle - Show the adapter's resource handle for this device
3429 * @dev: device struct
3433 * number of bytes printed to buffer
3435 static ssize_t ipr_show_adapter_handle(struct device *dev, struct device_attribute *attr, char *buf)
3437 struct scsi_device *sdev = to_scsi_device(dev);
3438 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)sdev->host->hostdata;
3439 struct ipr_resource_entry *res;
3440 unsigned long lock_flags = 0;
3441 ssize_t len = -ENXIO;
3443 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3444 res = (struct ipr_resource_entry *)sdev->hostdata;
3446 len = snprintf(buf, PAGE_SIZE, "%08X\n", res->cfgte.res_handle);
3447 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3451 static struct device_attribute ipr_adapter_handle_attr = {
3453 .name = "adapter_handle",
3456 .show = ipr_show_adapter_handle
3459 static struct device_attribute *ipr_dev_attrs[] = {
3460 &ipr_adapter_handle_attr,
3465 * ipr_biosparam - Return the HSC mapping
3466 * @sdev: scsi device struct
3467 * @block_device: block device pointer
3468 * @capacity: capacity of the device
3469 * @parm: Array containing returned HSC values.
3471 * This function generates the HSC parms that fdisk uses.
3472 * We want to make sure we return something that places partitions
3473 * on 4k boundaries for best performance with the IOA.
3478 static int ipr_biosparam(struct scsi_device *sdev,
3479 struct block_device *block_device,
3480 sector_t capacity, int *parm)
3488 cylinders = capacity;
3489 sector_div(cylinders, (128 * 32));
3494 parm[2] = cylinders;
3500 * ipr_find_starget - Find target based on bus/target.
3501 * @starget: scsi target struct
3504 * resource entry pointer if found / NULL if not found
3506 static struct ipr_resource_entry *ipr_find_starget(struct scsi_target *starget)
3508 struct Scsi_Host *shost = dev_to_shost(&starget->dev);
3509 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) shost->hostdata;
3510 struct ipr_resource_entry *res;
3512 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) {
3513 if ((res->cfgte.res_addr.bus == starget->channel) &&
3514 (res->cfgte.res_addr.target == starget->id) &&
3515 (res->cfgte.res_addr.lun == 0)) {
3523 static struct ata_port_info sata_port_info;
3526 * ipr_target_alloc - Prepare for commands to a SCSI target
3527 * @starget: scsi target struct
3529 * If the device is a SATA device, this function allocates an
3530 * ATA port with libata, else it does nothing.
3533 * 0 on success / non-0 on failure
3535 static int ipr_target_alloc(struct scsi_target *starget)
3537 struct Scsi_Host *shost = dev_to_shost(&starget->dev);
3538 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) shost->hostdata;
3539 struct ipr_sata_port *sata_port;
3540 struct ata_port *ap;
3541 struct ipr_resource_entry *res;
3542 unsigned long lock_flags;
3544 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3545 res = ipr_find_starget(starget);
3546 starget->hostdata = NULL;
3548 if (res && ipr_is_gata(res)) {
3549 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3550 sata_port = kzalloc(sizeof(*sata_port), GFP_KERNEL);
3554 ap = ata_sas_port_alloc(&ioa_cfg->ata_host, &sata_port_info, shost);
3556 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3557 sata_port->ioa_cfg = ioa_cfg;
3559 sata_port->res = res;
3561 res->sata_port = sata_port;
3562 ap->private_data = sata_port;
3563 starget->hostdata = sata_port;
3569 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3575 * ipr_target_destroy - Destroy a SCSI target
3576 * @starget: scsi target struct
3578 * If the device was a SATA device, this function frees the libata
3579 * ATA port, else it does nothing.
3582 static void ipr_target_destroy(struct scsi_target *starget)
3584 struct ipr_sata_port *sata_port = starget->hostdata;
3587 starget->hostdata = NULL;
3588 ata_sas_port_destroy(sata_port->ap);
3594 * ipr_find_sdev - Find device based on bus/target/lun.
3595 * @sdev: scsi device struct
3598 * resource entry pointer if found / NULL if not found
3600 static struct ipr_resource_entry *ipr_find_sdev(struct scsi_device *sdev)
3602 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) sdev->host->hostdata;
3603 struct ipr_resource_entry *res;
3605 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) {
3606 if ((res->cfgte.res_addr.bus == sdev->channel) &&
3607 (res->cfgte.res_addr.target == sdev->id) &&
3608 (res->cfgte.res_addr.lun == sdev->lun))
3616 * ipr_slave_destroy - Unconfigure a SCSI device
3617 * @sdev: scsi device struct
3622 static void ipr_slave_destroy(struct scsi_device *sdev)
3624 struct ipr_resource_entry *res;
3625 struct ipr_ioa_cfg *ioa_cfg;
3626 unsigned long lock_flags = 0;
3628 ioa_cfg = (struct ipr_ioa_cfg *) sdev->host->hostdata;
3630 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3631 res = (struct ipr_resource_entry *) sdev->hostdata;
3634 ata_port_disable(res->sata_port->ap);
3635 sdev->hostdata = NULL;
3637 res->sata_port = NULL;
3639 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3643 * ipr_slave_configure - Configure a SCSI device
3644 * @sdev: scsi device struct
3646 * This function configures the specified scsi device.
3651 static int ipr_slave_configure(struct scsi_device *sdev)
3653 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) sdev->host->hostdata;
3654 struct ipr_resource_entry *res;
3655 unsigned long lock_flags = 0;
3657 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3658 res = sdev->hostdata;
3660 if (ipr_is_af_dasd_device(res))
3661 sdev->type = TYPE_RAID;
3662 if (ipr_is_af_dasd_device(res) || ipr_is_ioa_resource(res)) {
3663 sdev->scsi_level = 4;
3664 sdev->no_uld_attach = 1;
3666 if (ipr_is_vset_device(res)) {
3667 blk_queue_rq_timeout(sdev->request_queue,
3668 IPR_VSET_RW_TIMEOUT);
3669 blk_queue_max_sectors(sdev->request_queue, IPR_VSET_MAX_SECTORS);
3671 if (ipr_is_vset_device(res) || ipr_is_scsi_disk(res))
3672 sdev->allow_restart = 1;
3673 if (ipr_is_gata(res) && res->sata_port) {
3674 scsi_adjust_queue_depth(sdev, 0, IPR_MAX_CMD_PER_ATA_LUN);
3675 ata_sas_slave_configure(sdev, res->sata_port->ap);
3677 scsi_adjust_queue_depth(sdev, 0, sdev->host->cmd_per_lun);
3680 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3685 * ipr_ata_slave_alloc - Prepare for commands to a SATA device
3686 * @sdev: scsi device struct
3688 * This function initializes an ATA port so that future commands
3689 * sent through queuecommand will work.
3694 static int ipr_ata_slave_alloc(struct scsi_device *sdev)
3696 struct ipr_sata_port *sata_port = NULL;
3700 if (sdev->sdev_target)
3701 sata_port = sdev->sdev_target->hostdata;
3703 rc = ata_sas_port_init(sata_port->ap);
3705 ipr_slave_destroy(sdev);
3712 * ipr_slave_alloc - Prepare for commands to a device.
3713 * @sdev: scsi device struct
3715 * This function saves a pointer to the resource entry
3716 * in the scsi device struct if the device exists. We
3717 * can then use this pointer in ipr_queuecommand when
3718 * handling new commands.
3721 * 0 on success / -ENXIO if device does not exist
3723 static int ipr_slave_alloc(struct scsi_device *sdev)
3725 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) sdev->host->hostdata;
3726 struct ipr_resource_entry *res;
3727 unsigned long lock_flags;
3730 sdev->hostdata = NULL;
3732 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3734 res = ipr_find_sdev(sdev);
3739 sdev->hostdata = res;
3740 if (!ipr_is_naca_model(res))
3741 res->needs_sync_complete = 1;
3743 if (ipr_is_gata(res)) {
3744 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3745 return ipr_ata_slave_alloc(sdev);
3749 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3755 * ipr_eh_host_reset - Reset the host adapter
3756 * @scsi_cmd: scsi command struct
3761 static int __ipr_eh_host_reset(struct scsi_cmnd * scsi_cmd)
3763 struct ipr_ioa_cfg *ioa_cfg;
3767 ioa_cfg = (struct ipr_ioa_cfg *) scsi_cmd->device->host->hostdata;
3769 dev_err(&ioa_cfg->pdev->dev,
3770 "Adapter being reset as a result of error recovery.\n");
3772 if (WAIT_FOR_DUMP == ioa_cfg->sdt_state)
3773 ioa_cfg->sdt_state = GET_DUMP;
3775 rc = ipr_reset_reload(ioa_cfg, IPR_SHUTDOWN_ABBREV);
3781 static int ipr_eh_host_reset(struct scsi_cmnd * cmd)
3785 spin_lock_irq(cmd->device->host->host_lock);
3786 rc = __ipr_eh_host_reset(cmd);
3787 spin_unlock_irq(cmd->device->host->host_lock);
3793 * ipr_device_reset - Reset the device
3794 * @ioa_cfg: ioa config struct
3795 * @res: resource entry struct
3797 * This function issues a device reset to the affected device.
3798 * If the device is a SCSI device, a LUN reset will be sent
3799 * to the device first. If that does not work, a target reset
3800 * will be sent. If the device is a SATA device, a PHY reset will
3804 * 0 on success / non-zero on failure
3806 static int ipr_device_reset(struct ipr_ioa_cfg *ioa_cfg,
3807 struct ipr_resource_entry *res)
3809 struct ipr_cmnd *ipr_cmd;
3810 struct ipr_ioarcb *ioarcb;
3811 struct ipr_cmd_pkt *cmd_pkt;
3812 struct ipr_ioarcb_ata_regs *regs;
3816 ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg);
3817 ioarcb = &ipr_cmd->ioarcb;
3818 cmd_pkt = &ioarcb->cmd_pkt;
3819 regs = &ioarcb->add_data.u.regs;
3821 ioarcb->res_handle = res->cfgte.res_handle;
3822 cmd_pkt->request_type = IPR_RQTYPE_IOACMD;
3823 cmd_pkt->cdb[0] = IPR_RESET_DEVICE;
3824 if (ipr_is_gata(res)) {
3825 cmd_pkt->cdb[2] = IPR_ATA_PHY_RESET;
3826 ioarcb->add_cmd_parms_len = cpu_to_be32(sizeof(regs->flags));
3827 regs->flags |= IPR_ATA_FLAG_STATUS_ON_GOOD_COMPLETION;
3830 ipr_send_blocking_cmd(ipr_cmd, ipr_timeout, IPR_DEVICE_RESET_TIMEOUT);
3831 ioasc = be32_to_cpu(ipr_cmd->ioasa.ioasc);
3832 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
3833 if (ipr_is_gata(res) && res->sata_port && ioasc != IPR_IOASC_IOA_WAS_RESET)
3834 memcpy(&res->sata_port->ioasa, &ipr_cmd->ioasa.u.gata,
3835 sizeof(struct ipr_ioasa_gata));
3838 return (IPR_IOASC_SENSE_KEY(ioasc) ? -EIO : 0);
3842 * ipr_sata_reset - Reset the SATA port
3843 * @link: SATA link to reset
3844 * @classes: class of the attached device
3846 * This function issues a SATA phy reset to the affected ATA link.
3849 * 0 on success / non-zero on failure
3851 static int ipr_sata_reset(struct ata_link *link, unsigned int *classes,
3852 unsigned long deadline)
3854 struct ipr_sata_port *sata_port = link->ap->private_data;
3855 struct ipr_ioa_cfg *ioa_cfg = sata_port->ioa_cfg;
3856 struct ipr_resource_entry *res;
3857 unsigned long lock_flags = 0;
3861 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3862 while(ioa_cfg->in_reset_reload) {
3863 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3864 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
3865 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
3868 res = sata_port->res;
3870 rc = ipr_device_reset(ioa_cfg, res);
3871 switch(res->cfgte.proto) {
3872 case IPR_PROTO_SATA:
3873 case IPR_PROTO_SAS_STP:
3874 *classes = ATA_DEV_ATA;
3876 case IPR_PROTO_SATA_ATAPI:
3877 case IPR_PROTO_SAS_STP_ATAPI:
3878 *classes = ATA_DEV_ATAPI;
3881 *classes = ATA_DEV_UNKNOWN;
3886 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
3892 * ipr_eh_dev_reset - Reset the device
3893 * @scsi_cmd: scsi command struct
3895 * This function issues a device reset to the affected device.
3896 * A LUN reset will be sent to the device first. If that does
3897 * not work, a target reset will be sent.
3902 static int __ipr_eh_dev_reset(struct scsi_cmnd * scsi_cmd)
3904 struct ipr_cmnd *ipr_cmd;
3905 struct ipr_ioa_cfg *ioa_cfg;
3906 struct ipr_resource_entry *res;
3907 struct ata_port *ap;
3911 ioa_cfg = (struct ipr_ioa_cfg *) scsi_cmd->device->host->hostdata;
3912 res = scsi_cmd->device->hostdata;
3918 * If we are currently going through reset/reload, return failed. This will force the
3919 * mid-layer to call ipr_eh_host_reset, which will then go to sleep and wait for the
3922 if (ioa_cfg->in_reset_reload)
3924 if (ioa_cfg->ioa_is_dead)
3927 list_for_each_entry(ipr_cmd, &ioa_cfg->pending_q, queue) {
3928 if (ipr_cmd->ioarcb.res_handle == res->cfgte.res_handle) {
3929 if (ipr_cmd->scsi_cmd)
3930 ipr_cmd->done = ipr_scsi_eh_done;
3932 ipr_cmd->done = ipr_sata_eh_done;
3933 if (ipr_cmd->qc && !(ipr_cmd->qc->flags & ATA_QCFLAG_FAILED)) {
3934 ipr_cmd->qc->err_mask |= AC_ERR_TIMEOUT;
3935 ipr_cmd->qc->flags |= ATA_QCFLAG_FAILED;
3940 res->resetting_device = 1;
3941 scmd_printk(KERN_ERR, scsi_cmd, "Resetting device\n");
3943 if (ipr_is_gata(res) && res->sata_port) {
3944 ap = res->sata_port->ap;
3945 spin_unlock_irq(scsi_cmd->device->host->host_lock);
3946 ata_std_error_handler(ap);
3947 spin_lock_irq(scsi_cmd->device->host->host_lock);
3949 list_for_each_entry(ipr_cmd, &ioa_cfg->pending_q, queue) {
3950 if (ipr_cmd->ioarcb.res_handle == res->cfgte.res_handle) {
3956 rc = ipr_device_reset(ioa_cfg, res);
3957 res->resetting_device = 0;
3960 return (rc ? FAILED : SUCCESS);
3963 static int ipr_eh_dev_reset(struct scsi_cmnd * cmd)
3967 spin_lock_irq(cmd->device->host->host_lock);
3968 rc = __ipr_eh_dev_reset(cmd);
3969 spin_unlock_irq(cmd->device->host->host_lock);
3975 * ipr_bus_reset_done - Op done function for bus reset.
3976 * @ipr_cmd: ipr command struct
3978 * This function is the op done function for a bus reset
3983 static void ipr_bus_reset_done(struct ipr_cmnd *ipr_cmd)
3985 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
3986 struct ipr_resource_entry *res;
3989 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) {
3990 if (!memcmp(&res->cfgte.res_handle, &ipr_cmd->ioarcb.res_handle,
3991 sizeof(res->cfgte.res_handle))) {
3992 scsi_report_bus_reset(ioa_cfg->host, res->cfgte.res_addr.bus);
3998 * If abort has not completed, indicate the reset has, else call the
3999 * abort's done function to wake the sleeping eh thread
4001 if (ipr_cmd->sibling->sibling)
4002 ipr_cmd->sibling->sibling = NULL;
4004 ipr_cmd->sibling->done(ipr_cmd->sibling);
4006 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
4011 * ipr_abort_timeout - An abort task has timed out
4012 * @ipr_cmd: ipr command struct
4014 * This function handles when an abort task times out. If this
4015 * happens we issue a bus reset since we have resources tied
4016 * up that must be freed before returning to the midlayer.
4021 static void ipr_abort_timeout(struct ipr_cmnd *ipr_cmd)
4023 struct ipr_cmnd *reset_cmd;
4024 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
4025 struct ipr_cmd_pkt *cmd_pkt;
4026 unsigned long lock_flags = 0;
4029 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4030 if (ipr_cmd->completion.done || ioa_cfg->in_reset_reload) {
4031 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4035 sdev_printk(KERN_ERR, ipr_cmd->u.sdev, "Abort timed out. Resetting bus.\n");
4036 reset_cmd = ipr_get_free_ipr_cmnd(ioa_cfg);
4037 ipr_cmd->sibling = reset_cmd;
4038 reset_cmd->sibling = ipr_cmd;
4039 reset_cmd->ioarcb.res_handle = ipr_cmd->ioarcb.res_handle;
4040 cmd_pkt = &reset_cmd->ioarcb.cmd_pkt;
4041 cmd_pkt->request_type = IPR_RQTYPE_IOACMD;
4042 cmd_pkt->cdb[0] = IPR_RESET_DEVICE;
4043 cmd_pkt->cdb[2] = IPR_RESET_TYPE_SELECT | IPR_BUS_RESET;
4045 ipr_do_req(reset_cmd, ipr_bus_reset_done, ipr_timeout, IPR_DEVICE_RESET_TIMEOUT);
4046 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4051 * ipr_cancel_op - Cancel specified op
4052 * @scsi_cmd: scsi command struct
4054 * This function cancels specified op.
4059 static int ipr_cancel_op(struct scsi_cmnd * scsi_cmd)
4061 struct ipr_cmnd *ipr_cmd;
4062 struct ipr_ioa_cfg *ioa_cfg;
4063 struct ipr_resource_entry *res;
4064 struct ipr_cmd_pkt *cmd_pkt;
4069 ioa_cfg = (struct ipr_ioa_cfg *)scsi_cmd->device->host->hostdata;
4070 res = scsi_cmd->device->hostdata;
4072 /* If we are currently going through reset/reload, return failed.
4073 * This will force the mid-layer to call ipr_eh_host_reset,
4074 * which will then go to sleep and wait for the reset to complete
4076 if (ioa_cfg->in_reset_reload || ioa_cfg->ioa_is_dead)
4078 if (!res || !ipr_is_gscsi(res))
4081 list_for_each_entry(ipr_cmd, &ioa_cfg->pending_q, queue) {
4082 if (ipr_cmd->scsi_cmd == scsi_cmd) {
4083 ipr_cmd->done = ipr_scsi_eh_done;
4092 ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg);
4093 ipr_cmd->ioarcb.res_handle = res->cfgte.res_handle;
4094 cmd_pkt = &ipr_cmd->ioarcb.cmd_pkt;
4095 cmd_pkt->request_type = IPR_RQTYPE_IOACMD;
4096 cmd_pkt->cdb[0] = IPR_CANCEL_ALL_REQUESTS;
4097 ipr_cmd->u.sdev = scsi_cmd->device;
4099 scmd_printk(KERN_ERR, scsi_cmd, "Aborting command: %02X\n",
4101 ipr_send_blocking_cmd(ipr_cmd, ipr_abort_timeout, IPR_CANCEL_ALL_TIMEOUT);
4102 ioasc = be32_to_cpu(ipr_cmd->ioasa.ioasc);
4105 * If the abort task timed out and we sent a bus reset, we will get
4106 * one the following responses to the abort
4108 if (ioasc == IPR_IOASC_BUS_WAS_RESET || ioasc == IPR_IOASC_SYNC_REQUIRED) {
4113 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
4114 if (!ipr_is_naca_model(res))
4115 res->needs_sync_complete = 1;
4118 return (IPR_IOASC_SENSE_KEY(ioasc) ? FAILED : SUCCESS);
4122 * ipr_eh_abort - Abort a single op
4123 * @scsi_cmd: scsi command struct
4128 static int ipr_eh_abort(struct scsi_cmnd * scsi_cmd)
4130 unsigned long flags;
4135 spin_lock_irqsave(scsi_cmd->device->host->host_lock, flags);
4136 rc = ipr_cancel_op(scsi_cmd);
4137 spin_unlock_irqrestore(scsi_cmd->device->host->host_lock, flags);
4144 * ipr_handle_other_interrupt - Handle "other" interrupts
4145 * @ioa_cfg: ioa config struct
4146 * @int_reg: interrupt register
4149 * IRQ_NONE / IRQ_HANDLED
4151 static irqreturn_t ipr_handle_other_interrupt(struct ipr_ioa_cfg *ioa_cfg,
4152 volatile u32 int_reg)
4154 irqreturn_t rc = IRQ_HANDLED;
4156 if (int_reg & IPR_PCII_IOA_TRANS_TO_OPER) {
4157 /* Mask the interrupt */
4158 writel(IPR_PCII_IOA_TRANS_TO_OPER, ioa_cfg->regs.set_interrupt_mask_reg);
4160 /* Clear the interrupt */
4161 writel(IPR_PCII_IOA_TRANS_TO_OPER, ioa_cfg->regs.clr_interrupt_reg);
4162 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg);
4164 list_del(&ioa_cfg->reset_cmd->queue);
4165 del_timer(&ioa_cfg->reset_cmd->timer);
4166 ipr_reset_ioa_job(ioa_cfg->reset_cmd);
4168 if (int_reg & IPR_PCII_IOA_UNIT_CHECKED)
4169 ioa_cfg->ioa_unit_checked = 1;
4171 dev_err(&ioa_cfg->pdev->dev,
4172 "Permanent IOA failure. 0x%08X\n", int_reg);
4174 if (WAIT_FOR_DUMP == ioa_cfg->sdt_state)
4175 ioa_cfg->sdt_state = GET_DUMP;
4177 ipr_mask_and_clear_interrupts(ioa_cfg, ~0);
4178 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
4185 * ipr_isr - Interrupt service routine
4187 * @devp: pointer to ioa config struct
4190 * IRQ_NONE / IRQ_HANDLED
4192 static irqreturn_t ipr_isr(int irq, void *devp)
4194 struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)devp;
4195 unsigned long lock_flags = 0;
4196 volatile u32 int_reg, int_mask_reg;
4199 struct ipr_cmnd *ipr_cmd;
4200 irqreturn_t rc = IRQ_NONE;
4202 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
4204 /* If interrupts are disabled, ignore the interrupt */
4205 if (!ioa_cfg->allow_interrupts) {
4206 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4210 int_mask_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg);
4211 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg) & ~int_mask_reg;
4213 /* If an interrupt on the adapter did not occur, ignore it */
4214 if (unlikely((int_reg & IPR_PCII_OPER_INTERRUPTS) == 0)) {
4215 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4222 while ((be32_to_cpu(*ioa_cfg->hrrq_curr) & IPR_HRRQ_TOGGLE_BIT) ==
4223 ioa_cfg->toggle_bit) {
4225 cmd_index = (be32_to_cpu(*ioa_cfg->hrrq_curr) &
4226 IPR_HRRQ_REQ_RESP_HANDLE_MASK) >> IPR_HRRQ_REQ_RESP_HANDLE_SHIFT;
4228 if (unlikely(cmd_index >= IPR_NUM_CMD_BLKS)) {
4229 ioa_cfg->errors_logged++;
4230 dev_err(&ioa_cfg->pdev->dev, "Invalid response handle from IOA\n");
4232 if (WAIT_FOR_DUMP == ioa_cfg->sdt_state)
4233 ioa_cfg->sdt_state = GET_DUMP;
4235 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
4236 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4240 ipr_cmd = ioa_cfg->ipr_cmnd_list[cmd_index];
4242 ioasc = be32_to_cpu(ipr_cmd->ioasa.ioasc);
4244 ipr_trc_hook(ipr_cmd, IPR_TRACE_FINISH, ioasc);
4246 list_del(&ipr_cmd->queue);
4247 del_timer(&ipr_cmd->timer);
4248 ipr_cmd->done(ipr_cmd);
4252 if (ioa_cfg->hrrq_curr < ioa_cfg->hrrq_end) {
4253 ioa_cfg->hrrq_curr++;
4255 ioa_cfg->hrrq_curr = ioa_cfg->hrrq_start;
4256 ioa_cfg->toggle_bit ^= 1u;
4260 if (ipr_cmd != NULL) {
4261 /* Clear the PCI interrupt */
4262 writel(IPR_PCII_HRRQ_UPDATED, ioa_cfg->regs.clr_interrupt_reg);
4263 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg) & ~int_mask_reg;
4268 if (unlikely(rc == IRQ_NONE))
4269 rc = ipr_handle_other_interrupt(ioa_cfg, int_reg);
4271 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
4276 * ipr_build_ioadl - Build a scatter/gather list and map the buffer
4277 * @ioa_cfg: ioa config struct
4278 * @ipr_cmd: ipr command struct
4281 * 0 on success / -1 on failure
4283 static int ipr_build_ioadl(struct ipr_ioa_cfg *ioa_cfg,
4284 struct ipr_cmnd *ipr_cmd)
4287 struct scatterlist *sg;
4289 u32 ioadl_flags = 0;
4290 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd;
4291 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
4292 struct ipr_ioadl_desc *ioadl = ipr_cmd->ioadl;
4294 length = scsi_bufflen(scsi_cmd);
4298 nseg = scsi_dma_map(scsi_cmd);
4300 dev_err(&ioa_cfg->pdev->dev, "pci_map_sg failed!\n");
4304 ipr_cmd->dma_use_sg = nseg;
4306 if (scsi_cmd->sc_data_direction == DMA_TO_DEVICE) {
4307 ioadl_flags = IPR_IOADL_FLAGS_WRITE;
4308 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ;
4309 ioarcb->write_data_transfer_length = cpu_to_be32(length);
4310 ioarcb->write_ioadl_len =
4311 cpu_to_be32(sizeof(struct ipr_ioadl_desc) * ipr_cmd->dma_use_sg);
4312 } else if (scsi_cmd->sc_data_direction == DMA_FROM_DEVICE) {
4313 ioadl_flags = IPR_IOADL_FLAGS_READ;
4314 ioarcb->read_data_transfer_length = cpu_to_be32(length);
4315 ioarcb->read_ioadl_len =
4316 cpu_to_be32(sizeof(struct ipr_ioadl_desc) * ipr_cmd->dma_use_sg);
4319 if (ipr_cmd->dma_use_sg <= ARRAY_SIZE(ioarcb->add_data.u.ioadl)) {
4320 ioadl = ioarcb->add_data.u.ioadl;
4321 ioarcb->write_ioadl_addr =
4322 cpu_to_be32(be32_to_cpu(ioarcb->ioarcb_host_pci_addr) +
4323 offsetof(struct ipr_ioarcb, add_data));
4324 ioarcb->read_ioadl_addr = ioarcb->write_ioadl_addr;
4327 scsi_for_each_sg(scsi_cmd, sg, ipr_cmd->dma_use_sg, i) {
4328 ioadl[i].flags_and_data_len =
4329 cpu_to_be32(ioadl_flags | sg_dma_len(sg));
4330 ioadl[i].address = cpu_to_be32(sg_dma_address(sg));
4333 ioadl[i-1].flags_and_data_len |= cpu_to_be32(IPR_IOADL_FLAGS_LAST);
4338 * ipr_get_task_attributes - Translate SPI Q-Tag to task attributes
4339 * @scsi_cmd: scsi command struct
4344 static u8 ipr_get_task_attributes(struct scsi_cmnd *scsi_cmd)
4347 u8 rc = IPR_FLAGS_LO_UNTAGGED_TASK;
4349 if (scsi_populate_tag_msg(scsi_cmd, tag)) {
4351 case MSG_SIMPLE_TAG:
4352 rc = IPR_FLAGS_LO_SIMPLE_TASK;
4355 rc = IPR_FLAGS_LO_HEAD_OF_Q_TASK;
4357 case MSG_ORDERED_TAG:
4358 rc = IPR_FLAGS_LO_ORDERED_TASK;
4367 * ipr_erp_done - Process completion of ERP for a device
4368 * @ipr_cmd: ipr command struct
4370 * This function copies the sense buffer into the scsi_cmd
4371 * struct and pushes the scsi_done function.
4376 static void ipr_erp_done(struct ipr_cmnd *ipr_cmd)
4378 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd;
4379 struct ipr_resource_entry *res = scsi_cmd->device->hostdata;
4380 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
4381 u32 ioasc = be32_to_cpu(ipr_cmd->ioasa.ioasc);
4383 if (IPR_IOASC_SENSE_KEY(ioasc) > 0) {
4384 scsi_cmd->result |= (DID_ERROR << 16);
4385 scmd_printk(KERN_ERR, scsi_cmd,
4386 "Request Sense failed with IOASC: 0x%08X\n", ioasc);
4388 memcpy(scsi_cmd->sense_buffer, ipr_cmd->sense_buffer,
4389 SCSI_SENSE_BUFFERSIZE);
4393 if (!ipr_is_naca_model(res))
4394 res->needs_sync_complete = 1;
4397 scsi_dma_unmap(ipr_cmd->scsi_cmd);
4398 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
4399 scsi_cmd->scsi_done(scsi_cmd);
4403 * ipr_reinit_ipr_cmnd_for_erp - Re-initialize a cmnd block to be used for ERP
4404 * @ipr_cmd: ipr command struct
4409 static void ipr_reinit_ipr_cmnd_for_erp(struct ipr_cmnd *ipr_cmd)
4411 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
4412 struct ipr_ioasa *ioasa = &ipr_cmd->ioasa;
4413 dma_addr_t dma_addr = be32_to_cpu(ioarcb->ioarcb_host_pci_addr);
4415 memset(&ioarcb->cmd_pkt, 0, sizeof(struct ipr_cmd_pkt));
4416 ioarcb->write_data_transfer_length = 0;
4417 ioarcb->read_data_transfer_length = 0;
4418 ioarcb->write_ioadl_len = 0;
4419 ioarcb->read_ioadl_len = 0;
4421 ioasa->residual_data_len = 0;
4422 ioarcb->write_ioadl_addr =
4423 cpu_to_be32(dma_addr + offsetof(struct ipr_cmnd, ioadl));
4424 ioarcb->read_ioadl_addr = ioarcb->write_ioadl_addr;
4428 * ipr_erp_request_sense - Send request sense to a device
4429 * @ipr_cmd: ipr command struct
4431 * This function sends a request sense to a device as a result
4432 * of a check condition.
4437 static void ipr_erp_request_sense(struct ipr_cmnd *ipr_cmd)
4439 struct ipr_cmd_pkt *cmd_pkt = &ipr_cmd->ioarcb.cmd_pkt;
4440 u32 ioasc = be32_to_cpu(ipr_cmd->ioasa.ioasc);
4442 if (IPR_IOASC_SENSE_KEY(ioasc) > 0) {
4443 ipr_erp_done(ipr_cmd);
4447 ipr_reinit_ipr_cmnd_for_erp(ipr_cmd);
4449 cmd_pkt->request_type = IPR_RQTYPE_SCSICDB;
4450 cmd_pkt->cdb[0] = REQUEST_SENSE;
4451 cmd_pkt->cdb[4] = SCSI_SENSE_BUFFERSIZE;
4452 cmd_pkt->flags_hi |= IPR_FLAGS_HI_SYNC_OVERRIDE;
4453 cmd_pkt->flags_hi |= IPR_FLAGS_HI_NO_ULEN_CHK;
4454 cmd_pkt->timeout = cpu_to_be16(IPR_REQUEST_SENSE_TIMEOUT / HZ);
4456 ipr_cmd->ioadl[0].flags_and_data_len =
4457 cpu_to_be32(IPR_IOADL_FLAGS_READ_LAST | SCSI_SENSE_BUFFERSIZE);
4458 ipr_cmd->ioadl[0].address =
4459 cpu_to_be32(ipr_cmd->sense_buffer_dma);
4461 ipr_cmd->ioarcb.read_ioadl_len =
4462 cpu_to_be32(sizeof(struct ipr_ioadl_desc));
4463 ipr_cmd->ioarcb.read_data_transfer_length =
4464 cpu_to_be32(SCSI_SENSE_BUFFERSIZE);
4466 ipr_do_req(ipr_cmd, ipr_erp_done, ipr_timeout,
4467 IPR_REQUEST_SENSE_TIMEOUT * 2);
4471 * ipr_erp_cancel_all - Send cancel all to a device
4472 * @ipr_cmd: ipr command struct
4474 * This function sends a cancel all to a device to clear the
4475 * queue. If we are running TCQ on the device, QERR is set to 1,
4476 * which means all outstanding ops have been dropped on the floor.
4477 * Cancel all will return them to us.
4482 static void ipr_erp_cancel_all(struct ipr_cmnd *ipr_cmd)
4484 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd;
4485 struct ipr_resource_entry *res = scsi_cmd->device->hostdata;
4486 struct ipr_cmd_pkt *cmd_pkt;
4490 ipr_reinit_ipr_cmnd_for_erp(ipr_cmd);
4492 if (!scsi_get_tag_type(scsi_cmd->device)) {
4493 ipr_erp_request_sense(ipr_cmd);
4497 cmd_pkt = &ipr_cmd->ioarcb.cmd_pkt;
4498 cmd_pkt->request_type = IPR_RQTYPE_IOACMD;
4499 cmd_pkt->cdb[0] = IPR_CANCEL_ALL_REQUESTS;
4501 ipr_do_req(ipr_cmd, ipr_erp_request_sense, ipr_timeout,
4502 IPR_CANCEL_ALL_TIMEOUT);
4506 * ipr_dump_ioasa - Dump contents of IOASA
4507 * @ioa_cfg: ioa config struct
4508 * @ipr_cmd: ipr command struct
4509 * @res: resource entry struct
4511 * This function is invoked by the interrupt handler when ops
4512 * fail. It will log the IOASA if appropriate. Only called
4518 static void ipr_dump_ioasa(struct ipr_ioa_cfg *ioa_cfg,
4519 struct ipr_cmnd *ipr_cmd, struct ipr_resource_entry *res)
4523 u32 ioasc, fd_ioasc;
4524 struct ipr_ioasa *ioasa = &ipr_cmd->ioasa;
4525 __be32 *ioasa_data = (__be32 *)ioasa;
4528 ioasc = be32_to_cpu(ioasa->ioasc) & IPR_IOASC_IOASC_MASK;
4529 fd_ioasc = be32_to_cpu(ioasa->fd_ioasc) & IPR_IOASC_IOASC_MASK;
4534 if (ioa_cfg->log_level < IPR_DEFAULT_LOG_LEVEL)
4537 if (ioasc == IPR_IOASC_BUS_WAS_RESET && fd_ioasc)
4538 error_index = ipr_get_error(fd_ioasc);
4540 error_index = ipr_get_error(ioasc);
4542 if (ioa_cfg->log_level < IPR_MAX_LOG_LEVEL) {
4543 /* Don't log an error if the IOA already logged one */
4544 if (ioasa->ilid != 0)
4547 if (!ipr_is_gscsi(res))
4550 if (ipr_error_table[error_index].log_ioasa == 0)
4554 ipr_res_err(ioa_cfg, res, "%s\n", ipr_error_table[error_index].error);
4556 if (sizeof(struct ipr_ioasa) < be16_to_cpu(ioasa->ret_stat_len))
4557 data_len = sizeof(struct ipr_ioasa);
4559 data_len = be16_to_cpu(ioasa->ret_stat_len);
4561 ipr_err("IOASA Dump:\n");
4563 for (i = 0; i < data_len / 4; i += 4) {
4564 ipr_err("%08X: %08X %08X %08X %08X\n", i*4,
4565 be32_to_cpu(ioasa_data[i]),
4566 be32_to_cpu(ioasa_data[i+1]),
4567 be32_to_cpu(ioasa_data[i+2]),
4568 be32_to_cpu(ioasa_data[i+3]));
4573 * ipr_gen_sense - Generate SCSI sense data from an IOASA
4575 * @sense_buf: sense data buffer
4580 static void ipr_gen_sense(struct ipr_cmnd *ipr_cmd)
4583 u8 *sense_buf = ipr_cmd->scsi_cmd->sense_buffer;
4584 struct ipr_resource_entry *res = ipr_cmd->scsi_cmd->device->hostdata;
4585 struct ipr_ioasa *ioasa = &ipr_cmd->ioasa;
4586 u32 ioasc = be32_to_cpu(ioasa->ioasc);
4588 memset(sense_buf, 0, SCSI_SENSE_BUFFERSIZE);
4590 if (ioasc >= IPR_FIRST_DRIVER_IOASC)
4593 ipr_cmd->scsi_cmd->result = SAM_STAT_CHECK_CONDITION;
4595 if (ipr_is_vset_device(res) &&
4596 ioasc == IPR_IOASC_MED_DO_NOT_REALLOC &&
4597 ioasa->u.vset.failing_lba_hi != 0) {
4598 sense_buf[0] = 0x72;
4599 sense_buf[1] = IPR_IOASC_SENSE_KEY(ioasc);
4600 sense_buf[2] = IPR_IOASC_SENSE_CODE(ioasc);
4601 sense_buf[3] = IPR_IOASC_SENSE_QUAL(ioasc);
4605 sense_buf[9] = 0x0A;
4606 sense_buf[10] = 0x80;
4608 failing_lba = be32_to_cpu(ioasa->u.vset.failing_lba_hi);
4610 sense_buf[12] = (failing_lba & 0xff000000) >> 24;
4611 sense_buf[13] = (failing_lba & 0x00ff0000) >> 16;
4612 sense_buf[14] = (failing_lba & 0x0000ff00) >> 8;
4613 sense_buf[15] = failing_lba & 0x000000ff;
4615 failing_lba = be32_to_cpu(ioasa->u.vset.failing_lba_lo);
4617 sense_buf[16] = (failing_lba & 0xff000000) >> 24;
4618 sense_buf[17] = (failing_lba & 0x00ff0000) >> 16;
4619 sense_buf[18] = (failing_lba & 0x0000ff00) >> 8;
4620 sense_buf[19] = failing_lba & 0x000000ff;
4622 sense_buf[0] = 0x70;
4623 sense_buf[2] = IPR_IOASC_SENSE_KEY(ioasc);
4624 sense_buf[12] = IPR_IOASC_SENSE_CODE(ioasc);
4625 sense_buf[13] = IPR_IOASC_SENSE_QUAL(ioasc);
4627 /* Illegal request */
4628 if ((IPR_IOASC_SENSE_KEY(ioasc) == 0x05) &&
4629 (be32_to_cpu(ioasa->ioasc_specific) & IPR_FIELD_POINTER_VALID)) {
4630 sense_buf[7] = 10; /* additional length */
4632 /* IOARCB was in error */
4633 if (IPR_IOASC_SENSE_CODE(ioasc) == 0x24)
4634 sense_buf[15] = 0xC0;
4635 else /* Parameter data was invalid */
4636 sense_buf[15] = 0x80;
4639 ((IPR_FIELD_POINTER_MASK &
4640 be32_to_cpu(ioasa->ioasc_specific)) >> 8) & 0xff;
4642 (IPR_FIELD_POINTER_MASK &
4643 be32_to_cpu(ioasa->ioasc_specific)) & 0xff;
4645 if (ioasc == IPR_IOASC_MED_DO_NOT_REALLOC) {
4646 if (ipr_is_vset_device(res))
4647 failing_lba = be32_to_cpu(ioasa->u.vset.failing_lba_lo);
4649 failing_lba = be32_to_cpu(ioasa->u.dasd.failing_lba);
4651 sense_buf[0] |= 0x80; /* Or in the Valid bit */
4652 sense_buf[3] = (failing_lba & 0xff000000) >> 24;
4653 sense_buf[4] = (failing_lba & 0x00ff0000) >> 16;
4654 sense_buf[5] = (failing_lba & 0x0000ff00) >> 8;
4655 sense_buf[6] = failing_lba & 0x000000ff;
4658 sense_buf[7] = 6; /* additional length */
4664 * ipr_get_autosense - Copy autosense data to sense buffer
4665 * @ipr_cmd: ipr command struct
4667 * This function copies the autosense buffer to the buffer
4668 * in the scsi_cmd, if there is autosense available.
4671 * 1 if autosense was available / 0 if not
4673 static int ipr_get_autosense(struct ipr_cmnd *ipr_cmd)
4675 struct ipr_ioasa *ioasa = &ipr_cmd->ioasa;
4677 if ((be32_to_cpu(ioasa->ioasc_specific) & IPR_AUTOSENSE_VALID) == 0)
4680 memcpy(ipr_cmd->scsi_cmd->sense_buffer, ioasa->auto_sense.data,
4681 min_t(u16, be16_to_cpu(ioasa->auto_sense.auto_sense_len),
4682 SCSI_SENSE_BUFFERSIZE));
4687 * ipr_erp_start - Process an error response for a SCSI op
4688 * @ioa_cfg: ioa config struct
4689 * @ipr_cmd: ipr command struct
4691 * This function determines whether or not to initiate ERP
4692 * on the affected device.
4697 static void ipr_erp_start(struct ipr_ioa_cfg *ioa_cfg,
4698 struct ipr_cmnd *ipr_cmd)
4700 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd;
4701 struct ipr_resource_entry *res = scsi_cmd->device->hostdata;
4702 u32 ioasc = be32_to_cpu(ipr_cmd->ioasa.ioasc);
4703 u32 masked_ioasc = ioasc & IPR_IOASC_IOASC_MASK;
4706 ipr_scsi_eh_done(ipr_cmd);
4710 if (!ipr_is_gscsi(res) && masked_ioasc != IPR_IOASC_HW_DEV_BUS_STATUS)
4711 ipr_gen_sense(ipr_cmd);
4713 ipr_dump_ioasa(ioa_cfg, ipr_cmd, res);
4715 switch (masked_ioasc) {
4716 case IPR_IOASC_ABORTED_CMD_TERM_BY_HOST:
4717 if (ipr_is_naca_model(res))
4718 scsi_cmd->result |= (DID_ABORT << 16);
4720 scsi_cmd->result |= (DID_IMM_RETRY << 16);
4722 case IPR_IOASC_IR_RESOURCE_HANDLE:
4723 case IPR_IOASC_IR_NO_CMDS_TO_2ND_IOA:
4724 scsi_cmd->result |= (DID_NO_CONNECT << 16);
4726 case IPR_IOASC_HW_SEL_TIMEOUT:
4727 scsi_cmd->result |= (DID_NO_CONNECT << 16);
4728 if (!ipr_is_naca_model(res))
4729 res->needs_sync_complete = 1;
4731 case IPR_IOASC_SYNC_REQUIRED:
4733 res->needs_sync_complete = 1;
4734 scsi_cmd->result |= (DID_IMM_RETRY << 16);
4736 case IPR_IOASC_MED_DO_NOT_REALLOC: /* prevent retries */
4737 case IPR_IOASA_IR_DUAL_IOA_DISABLED:
4738 scsi_cmd->result |= (DID_PASSTHROUGH << 16);
4740 case IPR_IOASC_BUS_WAS_RESET:
4741 case IPR_IOASC_BUS_WAS_RESET_BY_OTHER:
4743 * Report the bus reset and ask for a retry. The device
4744 * will give CC/UA the next command.
4746 if (!res->resetting_device)
4747 scsi_report_bus_reset(ioa_cfg->host, scsi_cmd->device->channel);
4748 scsi_cmd->result |= (DID_ERROR << 16);
4749 if (!ipr_is_naca_model(res))
4750 res->needs_sync_complete = 1;
4752 case IPR_IOASC_HW_DEV_BUS_STATUS:
4753 scsi_cmd->result |= IPR_IOASC_SENSE_STATUS(ioasc);
4754 if (IPR_IOASC_SENSE_STATUS(ioasc) == SAM_STAT_CHECK_CONDITION) {
4755 if (!ipr_get_autosense(ipr_cmd)) {
4756 if (!ipr_is_naca_model(res)) {
4757 ipr_erp_cancel_all(ipr_cmd);
4762 if (!ipr_is_naca_model(res))
4763 res->needs_sync_complete = 1;
4765 case IPR_IOASC_NR_INIT_CMD_REQUIRED:
4768 if (IPR_IOASC_SENSE_KEY(ioasc) > RECOVERED_ERROR)
4769 scsi_cmd->result |= (DID_ERROR << 16);
4770 if (!ipr_is_vset_device(res) && !ipr_is_naca_model(res))
4771 res->needs_sync_complete = 1;
4775 scsi_dma_unmap(ipr_cmd->scsi_cmd);
4776 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
4777 scsi_cmd->scsi_done(scsi_cmd);
4781 * ipr_scsi_done - mid-layer done function
4782 * @ipr_cmd: ipr command struct
4784 * This function is invoked by the interrupt handler for
4785 * ops generated by the SCSI mid-layer
4790 static void ipr_scsi_done(struct ipr_cmnd *ipr_cmd)
4792 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
4793 struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd;
4794 u32 ioasc = be32_to_cpu(ipr_cmd->ioasa.ioasc);
4796 scsi_set_resid(scsi_cmd, be32_to_cpu(ipr_cmd->ioasa.residual_data_len));
4798 if (likely(IPR_IOASC_SENSE_KEY(ioasc) == 0)) {
4799 scsi_dma_unmap(ipr_cmd->scsi_cmd);
4800 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
4801 scsi_cmd->scsi_done(scsi_cmd);
4803 ipr_erp_start(ioa_cfg, ipr_cmd);
4807 * ipr_queuecommand - Queue a mid-layer request
4808 * @scsi_cmd: scsi command struct
4809 * @done: done function
4811 * This function queues a request generated by the mid-layer.
4815 * SCSI_MLQUEUE_DEVICE_BUSY if device is busy
4816 * SCSI_MLQUEUE_HOST_BUSY if host is busy
4818 static int ipr_queuecommand(struct scsi_cmnd *scsi_cmd,
4819 void (*done) (struct scsi_cmnd *))
4821 struct ipr_ioa_cfg *ioa_cfg;
4822 struct ipr_resource_entry *res;
4823 struct ipr_ioarcb *ioarcb;
4824 struct ipr_cmnd *ipr_cmd;
4827 scsi_cmd->scsi_done = done;
4828 ioa_cfg = (struct ipr_ioa_cfg *)scsi_cmd->device->host->hostdata;
4829 res = scsi_cmd->device->hostdata;
4830 scsi_cmd->result = (DID_OK << 16);
4833 * We are currently blocking all devices due to a host reset
4834 * We have told the host to stop giving us new requests, but
4835 * ERP ops don't count. FIXME
4837 if (unlikely(!ioa_cfg->allow_cmds && !ioa_cfg->ioa_is_dead))
4838 return SCSI_MLQUEUE_HOST_BUSY;
4841 * FIXME - Create scsi_set_host_offline interface
4842 * and the ioa_is_dead check can be removed
4844 if (unlikely(ioa_cfg->ioa_is_dead || !res)) {
4845 memset(scsi_cmd->sense_buffer, 0, SCSI_SENSE_BUFFERSIZE);
4846 scsi_cmd->result = (DID_NO_CONNECT << 16);
4847 scsi_cmd->scsi_done(scsi_cmd);
4851 if (ipr_is_gata(res) && res->sata_port)
4852 return ata_sas_queuecmd(scsi_cmd, done, res->sata_port->ap);
4854 ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg);
4855 ioarcb = &ipr_cmd->ioarcb;
4856 list_add_tail(&ipr_cmd->queue, &ioa_cfg->pending_q);
4858 memcpy(ioarcb->cmd_pkt.cdb, scsi_cmd->cmnd, scsi_cmd->cmd_len);
4859 ipr_cmd->scsi_cmd = scsi_cmd;
4860 ioarcb->res_handle = res->cfgte.res_handle;
4861 ipr_cmd->done = ipr_scsi_done;
4862 ipr_trc_hook(ipr_cmd, IPR_TRACE_START, IPR_GET_PHYS_LOC(res->cfgte.res_addr));
4864 if (ipr_is_gscsi(res) || ipr_is_vset_device(res)) {
4865 if (scsi_cmd->underflow == 0)
4866 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_NO_ULEN_CHK;
4868 if (res->needs_sync_complete) {
4869 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_SYNC_COMPLETE;
4870 res->needs_sync_complete = 0;
4873 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_NO_LINK_DESC;
4874 ioarcb->cmd_pkt.flags_lo |= IPR_FLAGS_LO_DELAY_AFTER_RST;
4875 ioarcb->cmd_pkt.flags_lo |= IPR_FLAGS_LO_ALIGNED_BFR;
4876 ioarcb->cmd_pkt.flags_lo |= ipr_get_task_attributes(scsi_cmd);
4879 if (scsi_cmd->cmnd[0] >= 0xC0 &&
4880 (!ipr_is_gscsi(res) || scsi_cmd->cmnd[0] == IPR_QUERY_RSRC_STATE))
4881 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_IOACMD;
4883 if (likely(rc == 0))
4884 rc = ipr_build_ioadl(ioa_cfg, ipr_cmd);
4886 if (likely(rc == 0)) {
4888 writel(be32_to_cpu(ipr_cmd->ioarcb.ioarcb_host_pci_addr),
4889 ioa_cfg->regs.ioarrin_reg);
4891 list_move_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
4892 return SCSI_MLQUEUE_HOST_BUSY;
4899 * ipr_ioctl - IOCTL handler
4900 * @sdev: scsi device struct
4905 * 0 on success / other on failure
4907 static int ipr_ioctl(struct scsi_device *sdev, int cmd, void __user *arg)
4909 struct ipr_resource_entry *res;
4911 res = (struct ipr_resource_entry *)sdev->hostdata;
4912 if (res && ipr_is_gata(res)) {
4913 if (cmd == HDIO_GET_IDENTITY)
4915 return ata_sas_scsi_ioctl(res->sata_port->ap, sdev, cmd, arg);
4922 * ipr_info - Get information about the card/driver
4923 * @scsi_host: scsi host struct
4926 * pointer to buffer with description string
4928 static const char * ipr_ioa_info(struct Scsi_Host *host)
4930 static char buffer[512];
4931 struct ipr_ioa_cfg *ioa_cfg;
4932 unsigned long lock_flags = 0;
4934 ioa_cfg = (struct ipr_ioa_cfg *) host->hostdata;
4936 spin_lock_irqsave(host->host_lock, lock_flags);
4937 sprintf(buffer, "IBM %X Storage Adapter", ioa_cfg->type);
4938 spin_unlock_irqrestore(host->host_lock, lock_flags);
4943 static struct scsi_host_template driver_template = {
4944 .module = THIS_MODULE,
4946 .info = ipr_ioa_info,
4948 .queuecommand = ipr_queuecommand,
4949 .eh_abort_handler = ipr_eh_abort,
4950 .eh_device_reset_handler = ipr_eh_dev_reset,
4951 .eh_host_reset_handler = ipr_eh_host_reset,
4952 .slave_alloc = ipr_slave_alloc,
4953 .slave_configure = ipr_slave_configure,
4954 .slave_destroy = ipr_slave_destroy,
4955 .target_alloc = ipr_target_alloc,
4956 .target_destroy = ipr_target_destroy,
4957 .change_queue_depth = ipr_change_queue_depth,
4958 .change_queue_type = ipr_change_queue_type,
4959 .bios_param = ipr_biosparam,
4960 .can_queue = IPR_MAX_COMMANDS,
4962 .sg_tablesize = IPR_MAX_SGLIST,
4963 .max_sectors = IPR_IOA_MAX_SECTORS,
4964 .cmd_per_lun = IPR_MAX_CMD_PER_LUN,
4965 .use_clustering = ENABLE_CLUSTERING,
4966 .shost_attrs = ipr_ioa_attrs,
4967 .sdev_attrs = ipr_dev_attrs,
4968 .proc_name = IPR_NAME
4972 * ipr_ata_phy_reset - libata phy_reset handler
4973 * @ap: ata port to reset
4976 static void ipr_ata_phy_reset(struct ata_port *ap)
4978 unsigned long flags;
4979 struct ipr_sata_port *sata_port = ap->private_data;
4980 struct ipr_resource_entry *res = sata_port->res;
4981 struct ipr_ioa_cfg *ioa_cfg = sata_port->ioa_cfg;
4985 spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
4986 while(ioa_cfg->in_reset_reload) {
4987 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
4988 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
4989 spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
4992 if (!ioa_cfg->allow_cmds)
4995 rc = ipr_device_reset(ioa_cfg, res);
4998 ata_port_disable(ap);
5002 switch(res->cfgte.proto) {
5003 case IPR_PROTO_SATA:
5004 case IPR_PROTO_SAS_STP:
5005 ap->link.device[0].class = ATA_DEV_ATA;
5007 case IPR_PROTO_SATA_ATAPI:
5008 case IPR_PROTO_SAS_STP_ATAPI:
5009 ap->link.device[0].class = ATA_DEV_ATAPI;
5012 ap->link.device[0].class = ATA_DEV_UNKNOWN;
5013 ata_port_disable(ap);
5018 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
5023 * ipr_ata_post_internal - Cleanup after an internal command
5024 * @qc: ATA queued command
5029 static void ipr_ata_post_internal(struct ata_queued_cmd *qc)
5031 struct ipr_sata_port *sata_port = qc->ap->private_data;
5032 struct ipr_ioa_cfg *ioa_cfg = sata_port->ioa_cfg;
5033 struct ipr_cmnd *ipr_cmd;
5034 unsigned long flags;
5036 spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
5037 while(ioa_cfg->in_reset_reload) {
5038 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
5039 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
5040 spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
5043 list_for_each_entry(ipr_cmd, &ioa_cfg->pending_q, queue) {
5044 if (ipr_cmd->qc == qc) {
5045 ipr_device_reset(ioa_cfg, sata_port->res);
5049 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
5053 * ipr_copy_sata_tf - Copy a SATA taskfile to an IOA data structure
5054 * @regs: destination
5055 * @tf: source ATA taskfile
5060 static void ipr_copy_sata_tf(struct ipr_ioarcb_ata_regs *regs,
5061 struct ata_taskfile *tf)
5063 regs->feature = tf->feature;
5064 regs->nsect = tf->nsect;
5065 regs->lbal = tf->lbal;
5066 regs->lbam = tf->lbam;
5067 regs->lbah = tf->lbah;
5068 regs->device = tf->device;
5069 regs->command = tf->command;
5070 regs->hob_feature = tf->hob_feature;
5071 regs->hob_nsect = tf->hob_nsect;
5072 regs->hob_lbal = tf->hob_lbal;
5073 regs->hob_lbam = tf->hob_lbam;
5074 regs->hob_lbah = tf->hob_lbah;
5075 regs->ctl = tf->ctl;
5079 * ipr_sata_done - done function for SATA commands
5080 * @ipr_cmd: ipr command struct
5082 * This function is invoked by the interrupt handler for
5083 * ops generated by the SCSI mid-layer to SATA devices
5088 static void ipr_sata_done(struct ipr_cmnd *ipr_cmd)
5090 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
5091 struct ata_queued_cmd *qc = ipr_cmd->qc;
5092 struct ipr_sata_port *sata_port = qc->ap->private_data;
5093 struct ipr_resource_entry *res = sata_port->res;
5094 u32 ioasc = be32_to_cpu(ipr_cmd->ioasa.ioasc);
5096 memcpy(&sata_port->ioasa, &ipr_cmd->ioasa.u.gata,
5097 sizeof(struct ipr_ioasa_gata));
5098 ipr_dump_ioasa(ioa_cfg, ipr_cmd, res);
5100 if (be32_to_cpu(ipr_cmd->ioasa.ioasc_specific) & IPR_ATA_DEVICE_WAS_RESET)
5101 scsi_report_device_reset(ioa_cfg->host, res->cfgte.res_addr.bus,
5102 res->cfgte.res_addr.target);
5104 if (IPR_IOASC_SENSE_KEY(ioasc) > RECOVERED_ERROR)
5105 qc->err_mask |= __ac_err_mask(ipr_cmd->ioasa.u.gata.status);
5107 qc->err_mask |= ac_err_mask(ipr_cmd->ioasa.u.gata.status);
5108 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
5109 ata_qc_complete(qc);
5113 * ipr_build_ata_ioadl - Build an ATA scatter/gather list
5114 * @ipr_cmd: ipr command struct
5115 * @qc: ATA queued command
5118 static void ipr_build_ata_ioadl(struct ipr_cmnd *ipr_cmd,
5119 struct ata_queued_cmd *qc)
5121 u32 ioadl_flags = 0;
5122 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
5123 struct ipr_ioadl_desc *ioadl = ipr_cmd->ioadl;
5124 struct ipr_ioadl_desc *last_ioadl = NULL;
5125 int len = qc->nbytes;
5126 struct scatterlist *sg;
5132 if (qc->dma_dir == DMA_TO_DEVICE) {
5133 ioadl_flags = IPR_IOADL_FLAGS_WRITE;
5134 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ;
5135 ioarcb->write_data_transfer_length = cpu_to_be32(len);
5136 ioarcb->write_ioadl_len =
5137 cpu_to_be32(sizeof(struct ipr_ioadl_desc) * ipr_cmd->dma_use_sg);
5138 } else if (qc->dma_dir == DMA_FROM_DEVICE) {
5139 ioadl_flags = IPR_IOADL_FLAGS_READ;
5140 ioarcb->read_data_transfer_length = cpu_to_be32(len);
5141 ioarcb->read_ioadl_len =
5142 cpu_to_be32(sizeof(struct ipr_ioadl_desc) * ipr_cmd->dma_use_sg);
5145 for_each_sg(qc->sg, sg, qc->n_elem, si) {
5146 ioadl->flags_and_data_len = cpu_to_be32(ioadl_flags | sg_dma_len(sg));
5147 ioadl->address = cpu_to_be32(sg_dma_address(sg));
5153 if (likely(last_ioadl))
5154 last_ioadl->flags_and_data_len |= cpu_to_be32(IPR_IOADL_FLAGS_LAST);
5158 * ipr_qc_issue - Issue a SATA qc to a device
5159 * @qc: queued command
5164 static unsigned int ipr_qc_issue(struct ata_queued_cmd *qc)
5166 struct ata_port *ap = qc->ap;
5167 struct ipr_sata_port *sata_port = ap->private_data;
5168 struct ipr_resource_entry *res = sata_port->res;
5169 struct ipr_ioa_cfg *ioa_cfg = sata_port->ioa_cfg;
5170 struct ipr_cmnd *ipr_cmd;
5171 struct ipr_ioarcb *ioarcb;
5172 struct ipr_ioarcb_ata_regs *regs;
5174 if (unlikely(!ioa_cfg->allow_cmds || ioa_cfg->ioa_is_dead))
5175 return AC_ERR_SYSTEM;
5177 ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg);
5178 ioarcb = &ipr_cmd->ioarcb;
5179 regs = &ioarcb->add_data.u.regs;
5181 memset(&ioarcb->add_data, 0, sizeof(ioarcb->add_data));
5182 ioarcb->add_cmd_parms_len = cpu_to_be32(sizeof(ioarcb->add_data.u.regs));
5184 list_add_tail(&ipr_cmd->queue, &ioa_cfg->pending_q);
5186 ipr_cmd->done = ipr_sata_done;
5187 ipr_cmd->ioarcb.res_handle = res->cfgte.res_handle;
5188 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_ATA_PASSTHRU;
5189 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_NO_LINK_DESC;
5190 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_NO_ULEN_CHK;
5191 ipr_cmd->dma_use_sg = qc->n_elem;
5193 ipr_build_ata_ioadl(ipr_cmd, qc);
5194 regs->flags |= IPR_ATA_FLAG_STATUS_ON_GOOD_COMPLETION;
5195 ipr_copy_sata_tf(regs, &qc->tf);
5196 memcpy(ioarcb->cmd_pkt.cdb, qc->cdb, IPR_MAX_CDB_LEN);
5197 ipr_trc_hook(ipr_cmd, IPR_TRACE_START, IPR_GET_PHYS_LOC(res->cfgte.res_addr));
5199 switch (qc->tf.protocol) {
5200 case ATA_PROT_NODATA:
5205 regs->flags |= IPR_ATA_FLAG_XFER_TYPE_DMA;
5208 case ATAPI_PROT_PIO:
5209 case ATAPI_PROT_NODATA:
5210 regs->flags |= IPR_ATA_FLAG_PACKET_CMD;
5213 case ATAPI_PROT_DMA:
5214 regs->flags |= IPR_ATA_FLAG_PACKET_CMD;
5215 regs->flags |= IPR_ATA_FLAG_XFER_TYPE_DMA;
5220 return AC_ERR_INVALID;
5224 writel(be32_to_cpu(ioarcb->ioarcb_host_pci_addr),
5225 ioa_cfg->regs.ioarrin_reg);
5230 * ipr_qc_fill_rtf - Read result TF
5231 * @qc: ATA queued command
5236 static bool ipr_qc_fill_rtf(struct ata_queued_cmd *qc)
5238 struct ipr_sata_port *sata_port = qc->ap->private_data;
5239 struct ipr_ioasa_gata *g = &sata_port->ioasa;
5240 struct ata_taskfile *tf = &qc->result_tf;
5242 tf->feature = g->error;
5243 tf->nsect = g->nsect;
5247 tf->device = g->device;
5248 tf->command = g->status;
5249 tf->hob_nsect = g->hob_nsect;
5250 tf->hob_lbal = g->hob_lbal;
5251 tf->hob_lbam = g->hob_lbam;
5252 tf->hob_lbah = g->hob_lbah;
5253 tf->ctl = g->alt_status;
5258 static struct ata_port_operations ipr_sata_ops = {
5259 .phy_reset = ipr_ata_phy_reset,
5260 .hardreset = ipr_sata_reset,
5261 .post_internal_cmd = ipr_ata_post_internal,
5262 .qc_prep = ata_noop_qc_prep,
5263 .qc_issue = ipr_qc_issue,
5264 .qc_fill_rtf = ipr_qc_fill_rtf,
5265 .port_start = ata_sas_port_start,
5266 .port_stop = ata_sas_port_stop
5269 static struct ata_port_info sata_port_info = {
5270 .flags = ATA_FLAG_SATA | ATA_FLAG_NO_LEGACY | ATA_FLAG_SATA_RESET |
5271 ATA_FLAG_MMIO | ATA_FLAG_PIO_DMA,
5272 .pio_mask = 0x10, /* pio4 */
5274 .udma_mask = 0x7f, /* udma0-6 */
5275 .port_ops = &ipr_sata_ops
5278 #ifdef CONFIG_PPC_PSERIES
5279 static const u16 ipr_blocked_processors[] = {
5291 * ipr_invalid_adapter - Determine if this adapter is supported on this hardware
5292 * @ioa_cfg: ioa cfg struct
5294 * Adapters that use Gemstone revision < 3.1 do not work reliably on
5295 * certain pSeries hardware. This function determines if the given
5296 * adapter is in one of these confgurations or not.
5299 * 1 if adapter is not supported / 0 if adapter is supported
5301 static int ipr_invalid_adapter(struct ipr_ioa_cfg *ioa_cfg)
5305 if ((ioa_cfg->type == 0x5702) && (ioa_cfg->pdev->revision < 4)) {
5306 for (i = 0; i < ARRAY_SIZE(ipr_blocked_processors); i++){
5307 if (__is_processor(ipr_blocked_processors[i]))
5314 #define ipr_invalid_adapter(ioa_cfg) 0
5318 * ipr_ioa_bringdown_done - IOA bring down completion.
5319 * @ipr_cmd: ipr command struct
5321 * This function processes the completion of an adapter bring down.
5322 * It wakes any reset sleepers.
5327 static int ipr_ioa_bringdown_done(struct ipr_cmnd *ipr_cmd)
5329 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
5332 ioa_cfg->in_reset_reload = 0;
5333 ioa_cfg->reset_retries = 0;
5334 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
5335 wake_up_all(&ioa_cfg->reset_wait_q);
5337 spin_unlock_irq(ioa_cfg->host->host_lock);
5338 scsi_unblock_requests(ioa_cfg->host);
5339 spin_lock_irq(ioa_cfg->host->host_lock);
5342 return IPR_RC_JOB_RETURN;
5346 * ipr_ioa_reset_done - IOA reset completion.
5347 * @ipr_cmd: ipr command struct
5349 * This function processes the completion of an adapter reset.
5350 * It schedules any necessary mid-layer add/removes and
5351 * wakes any reset sleepers.
5356 static int ipr_ioa_reset_done(struct ipr_cmnd *ipr_cmd)
5358 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
5359 struct ipr_resource_entry *res;
5360 struct ipr_hostrcb *hostrcb, *temp;
5364 ioa_cfg->in_reset_reload = 0;
5365 ioa_cfg->allow_cmds = 1;
5366 ioa_cfg->reset_cmd = NULL;
5367 ioa_cfg->doorbell |= IPR_RUNTIME_RESET;
5369 list_for_each_entry(res, &ioa_cfg->used_res_q, queue) {
5370 if (ioa_cfg->allow_ml_add_del && (res->add_to_ml || res->del_from_ml)) {
5375 schedule_work(&ioa_cfg->work_q);
5377 list_for_each_entry_safe(hostrcb, temp, &ioa_cfg->hostrcb_free_q, queue) {
5378 list_del(&hostrcb->queue);
5379 if (i++ < IPR_NUM_LOG_HCAMS)
5380 ipr_send_hcam(ioa_cfg, IPR_HCAM_CDB_OP_CODE_LOG_DATA, hostrcb);
5382 ipr_send_hcam(ioa_cfg, IPR_HCAM_CDB_OP_CODE_CONFIG_CHANGE, hostrcb);
5385 scsi_report_bus_reset(ioa_cfg->host, IPR_VSET_BUS);
5386 dev_info(&ioa_cfg->pdev->dev, "IOA initialized.\n");
5388 ioa_cfg->reset_retries = 0;
5389 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
5390 wake_up_all(&ioa_cfg->reset_wait_q);
5392 spin_unlock(ioa_cfg->host->host_lock);
5393 scsi_unblock_requests(ioa_cfg->host);
5394 spin_lock(ioa_cfg->host->host_lock);
5396 if (!ioa_cfg->allow_cmds)
5397 scsi_block_requests(ioa_cfg->host);
5400 return IPR_RC_JOB_RETURN;
5404 * ipr_set_sup_dev_dflt - Initialize a Set Supported Device buffer
5405 * @supported_dev: supported device struct
5406 * @vpids: vendor product id struct
5411 static void ipr_set_sup_dev_dflt(struct ipr_supported_device *supported_dev,
5412 struct ipr_std_inq_vpids *vpids)
5414 memset(supported_dev, 0, sizeof(struct ipr_supported_device));
5415 memcpy(&supported_dev->vpids, vpids, sizeof(struct ipr_std_inq_vpids));
5416 supported_dev->num_records = 1;
5417 supported_dev->data_length =
5418 cpu_to_be16(sizeof(struct ipr_supported_device));
5419 supported_dev->reserved = 0;
5423 * ipr_set_supported_devs - Send Set Supported Devices for a device
5424 * @ipr_cmd: ipr command struct
5426 * This function send a Set Supported Devices to the adapter
5429 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
5431 static int ipr_set_supported_devs(struct ipr_cmnd *ipr_cmd)
5433 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
5434 struct ipr_supported_device *supp_dev = &ioa_cfg->vpd_cbs->supp_dev;
5435 struct ipr_ioadl_desc *ioadl = ipr_cmd->ioadl;
5436 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
5437 struct ipr_resource_entry *res = ipr_cmd->u.res;
5439 ipr_cmd->job_step = ipr_ioa_reset_done;
5441 list_for_each_entry_continue(res, &ioa_cfg->used_res_q, queue) {
5442 if (!ipr_is_scsi_disk(res))
5445 ipr_cmd->u.res = res;
5446 ipr_set_sup_dev_dflt(supp_dev, &res->cfgte.std_inq_data.vpids);
5448 ioarcb->res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE);
5449 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ;
5450 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_IOACMD;
5452 ioarcb->cmd_pkt.cdb[0] = IPR_SET_SUPPORTED_DEVICES;
5453 ioarcb->cmd_pkt.cdb[7] = (sizeof(struct ipr_supported_device) >> 8) & 0xff;
5454 ioarcb->cmd_pkt.cdb[8] = sizeof(struct ipr_supported_device) & 0xff;
5456 ioadl->flags_and_data_len = cpu_to_be32(IPR_IOADL_FLAGS_WRITE_LAST |
5457 sizeof(struct ipr_supported_device));
5458 ioadl->address = cpu_to_be32(ioa_cfg->vpd_cbs_dma +
5459 offsetof(struct ipr_misc_cbs, supp_dev));
5460 ioarcb->write_ioadl_len = cpu_to_be32(sizeof(struct ipr_ioadl_desc));
5461 ioarcb->write_data_transfer_length =
5462 cpu_to_be32(sizeof(struct ipr_supported_device));
5464 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout,
5465 IPR_SET_SUP_DEVICE_TIMEOUT);
5467 ipr_cmd->job_step = ipr_set_supported_devs;
5468 return IPR_RC_JOB_RETURN;
5471 return IPR_RC_JOB_CONTINUE;
5475 * ipr_setup_write_cache - Disable write cache if needed
5476 * @ipr_cmd: ipr command struct
5478 * This function sets up adapters write cache to desired setting
5481 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
5483 static int ipr_setup_write_cache(struct ipr_cmnd *ipr_cmd)
5485 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
5487 ipr_cmd->job_step = ipr_set_supported_devs;
5488 ipr_cmd->u.res = list_entry(ioa_cfg->used_res_q.next,
5489 struct ipr_resource_entry, queue);
5491 if (ioa_cfg->cache_state != CACHE_DISABLED)
5492 return IPR_RC_JOB_CONTINUE;
5494 ipr_cmd->ioarcb.res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE);
5495 ipr_cmd->ioarcb.cmd_pkt.request_type = IPR_RQTYPE_IOACMD;
5496 ipr_cmd->ioarcb.cmd_pkt.cdb[0] = IPR_IOA_SHUTDOWN;
5497 ipr_cmd->ioarcb.cmd_pkt.cdb[1] = IPR_SHUTDOWN_PREPARE_FOR_NORMAL;
5499 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT);
5501 return IPR_RC_JOB_RETURN;
5505 * ipr_get_mode_page - Locate specified mode page
5506 * @mode_pages: mode page buffer
5507 * @page_code: page code to find
5508 * @len: minimum required length for mode page
5511 * pointer to mode page / NULL on failure
5513 static void *ipr_get_mode_page(struct ipr_mode_pages *mode_pages,
5514 u32 page_code, u32 len)
5516 struct ipr_mode_page_hdr *mode_hdr;
5520 if (!mode_pages || (mode_pages->hdr.length == 0))
5523 length = (mode_pages->hdr.length + 1) - 4 - mode_pages->hdr.block_desc_len;
5524 mode_hdr = (struct ipr_mode_page_hdr *)
5525 (mode_pages->data + mode_pages->hdr.block_desc_len);
5528 if (IPR_GET_MODE_PAGE_CODE(mode_hdr) == page_code) {
5529 if (mode_hdr->page_length >= (len - sizeof(struct ipr_mode_page_hdr)))
5533 page_length = (sizeof(struct ipr_mode_page_hdr) +
5534 mode_hdr->page_length);
5535 length -= page_length;
5536 mode_hdr = (struct ipr_mode_page_hdr *)
5537 ((unsigned long)mode_hdr + page_length);
5544 * ipr_check_term_power - Check for term power errors
5545 * @ioa_cfg: ioa config struct
5546 * @mode_pages: IOAFP mode pages buffer
5548 * Check the IOAFP's mode page 28 for term power errors
5553 static void ipr_check_term_power(struct ipr_ioa_cfg *ioa_cfg,
5554 struct ipr_mode_pages *mode_pages)
5558 struct ipr_dev_bus_entry *bus;
5559 struct ipr_mode_page28 *mode_page;
5561 mode_page = ipr_get_mode_page(mode_pages, 0x28,
5562 sizeof(struct ipr_mode_page28));
5564 entry_length = mode_page->entry_length;
5566 bus = mode_page->bus;
5568 for (i = 0; i < mode_page->num_entries; i++) {
5569 if (bus->flags & IPR_SCSI_ATTR_NO_TERM_PWR) {
5570 dev_err(&ioa_cfg->pdev->dev,
5571 "Term power is absent on scsi bus %d\n",
5575 bus = (struct ipr_dev_bus_entry *)((char *)bus + entry_length);
5580 * ipr_scsi_bus_speed_limit - Limit the SCSI speed based on SES table
5581 * @ioa_cfg: ioa config struct
5583 * Looks through the config table checking for SES devices. If
5584 * the SES device is in the SES table indicating a maximum SCSI
5585 * bus speed, the speed is limited for the bus.
5590 static void ipr_scsi_bus_speed_limit(struct ipr_ioa_cfg *ioa_cfg)
5595 for (i = 0; i < IPR_MAX_NUM_BUSES; i++) {
5596 max_xfer_rate = ipr_get_max_scsi_speed(ioa_cfg, i,
5597 ioa_cfg->bus_attr[i].bus_width);
5599 if (max_xfer_rate < ioa_cfg->bus_attr[i].max_xfer_rate)
5600 ioa_cfg->bus_attr[i].max_xfer_rate = max_xfer_rate;
5605 * ipr_modify_ioafp_mode_page_28 - Modify IOAFP Mode Page 28
5606 * @ioa_cfg: ioa config struct
5607 * @mode_pages: mode page 28 buffer
5609 * Updates mode page 28 based on driver configuration
5614 static void ipr_modify_ioafp_mode_page_28(struct ipr_ioa_cfg *ioa_cfg,
5615 struct ipr_mode_pages *mode_pages)
5617 int i, entry_length;
5618 struct ipr_dev_bus_entry *bus;
5619 struct ipr_bus_attributes *bus_attr;
5620 struct ipr_mode_page28 *mode_page;
5622 mode_page = ipr_get_mode_page(mode_pages, 0x28,
5623 sizeof(struct ipr_mode_page28));
5625 entry_length = mode_page->entry_length;
5627 /* Loop for each device bus entry */
5628 for (i = 0, bus = mode_page->bus;
5629 i < mode_page->num_entries;
5630 i++, bus = (struct ipr_dev_bus_entry *)((u8 *)bus + entry_length)) {
5631 if (bus->res_addr.bus > IPR_MAX_NUM_BUSES) {
5632 dev_err(&ioa_cfg->pdev->dev,
5633 "Invalid resource address reported: 0x%08X\n",
5634 IPR_GET_PHYS_LOC(bus->res_addr));
5638 bus_attr = &ioa_cfg->bus_attr[i];
5639 bus->extended_reset_delay = IPR_EXTENDED_RESET_DELAY;
5640 bus->bus_width = bus_attr->bus_width;
5641 bus->max_xfer_rate = cpu_to_be32(bus_attr->max_xfer_rate);
5642 bus->flags &= ~IPR_SCSI_ATTR_QAS_MASK;
5643 if (bus_attr->qas_enabled)
5644 bus->flags |= IPR_SCSI_ATTR_ENABLE_QAS;
5646 bus->flags |= IPR_SCSI_ATTR_DISABLE_QAS;
5651 * ipr_build_mode_select - Build a mode select command
5652 * @ipr_cmd: ipr command struct
5653 * @res_handle: resource handle to send command to
5654 * @parm: Byte 2 of Mode Sense command
5655 * @dma_addr: DMA buffer address
5656 * @xfer_len: data transfer length
5661 static void ipr_build_mode_select(struct ipr_cmnd *ipr_cmd,
5662 __be32 res_handle, u8 parm, u32 dma_addr,
5665 struct ipr_ioadl_desc *ioadl = ipr_cmd->ioadl;
5666 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
5668 ioarcb->res_handle = res_handle;
5669 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_SCSICDB;
5670 ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ;
5671 ioarcb->cmd_pkt.cdb[0] = MODE_SELECT;
5672 ioarcb->cmd_pkt.cdb[1] = parm;
5673 ioarcb->cmd_pkt.cdb[4] = xfer_len;
5675 ioadl->flags_and_data_len =
5676 cpu_to_be32(IPR_IOADL_FLAGS_WRITE_LAST | xfer_len);
5677 ioadl->address = cpu_to_be32(dma_addr);
5678 ioarcb->write_ioadl_len = cpu_to_be32(sizeof(struct ipr_ioadl_desc));
5679 ioarcb->write_data_transfer_length = cpu_to_be32(xfer_len);
5683 * ipr_ioafp_mode_select_page28 - Issue Mode Select Page 28 to IOA
5684 * @ipr_cmd: ipr command struct
5686 * This function sets up the SCSI bus attributes and sends
5687 * a Mode Select for Page 28 to activate them.
5692 static int ipr_ioafp_mode_select_page28(struct ipr_cmnd *ipr_cmd)
5694 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
5695 struct ipr_mode_pages *mode_pages = &ioa_cfg->vpd_cbs->mode_pages;
5699 ipr_scsi_bus_speed_limit(ioa_cfg);
5700 ipr_check_term_power(ioa_cfg, mode_pages);
5701 ipr_modify_ioafp_mode_page_28(ioa_cfg, mode_pages);
5702 length = mode_pages->hdr.length + 1;
5703 mode_pages->hdr.length = 0;
5705 ipr_build_mode_select(ipr_cmd, cpu_to_be32(IPR_IOA_RES_HANDLE), 0x11,
5706 ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, mode_pages),
5709 ipr_cmd->job_step = ipr_setup_write_cache;
5710 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT);
5713 return IPR_RC_JOB_RETURN;
5717 * ipr_build_mode_sense - Builds a mode sense command
5718 * @ipr_cmd: ipr command struct
5719 * @res: resource entry struct
5720 * @parm: Byte 2 of mode sense command
5721 * @dma_addr: DMA address of mode sense buffer
5722 * @xfer_len: Size of DMA buffer
5727 static void ipr_build_mode_sense(struct ipr_cmnd *ipr_cmd,
5729 u8 parm, u32 dma_addr, u8 xfer_len)
5731 struct ipr_ioadl_desc *ioadl = ipr_cmd->ioadl;
5732 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
5734 ioarcb->res_handle = res_handle;
5735 ioarcb->cmd_pkt.cdb[0] = MODE_SENSE;
5736 ioarcb->cmd_pkt.cdb[2] = parm;
5737 ioarcb->cmd_pkt.cdb[4] = xfer_len;
5738 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_SCSICDB;
5740 ioadl->flags_and_data_len =
5741 cpu_to_be32(IPR_IOADL_FLAGS_READ_LAST | xfer_len);
5742 ioadl->address = cpu_to_be32(dma_addr);
5743 ioarcb->read_ioadl_len = cpu_to_be32(sizeof(struct ipr_ioadl_desc));
5744 ioarcb->read_data_transfer_length = cpu_to_be32(xfer_len);
5748 * ipr_reset_cmd_failed - Handle failure of IOA reset command
5749 * @ipr_cmd: ipr command struct
5751 * This function handles the failure of an IOA bringup command.
5756 static int ipr_reset_cmd_failed(struct ipr_cmnd *ipr_cmd)
5758 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
5759 u32 ioasc = be32_to_cpu(ipr_cmd->ioasa.ioasc);
5761 dev_err(&ioa_cfg->pdev->dev,
5762 "0x%02X failed with IOASC: 0x%08X\n",
5763 ipr_cmd->ioarcb.cmd_pkt.cdb[0], ioasc);
5765 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
5766 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
5767 return IPR_RC_JOB_RETURN;
5771 * ipr_reset_mode_sense_failed - Handle failure of IOAFP mode sense
5772 * @ipr_cmd: ipr command struct
5774 * This function handles the failure of a Mode Sense to the IOAFP.
5775 * Some adapters do not handle all mode pages.
5778 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
5780 static int ipr_reset_mode_sense_failed(struct ipr_cmnd *ipr_cmd)
5782 u32 ioasc = be32_to_cpu(ipr_cmd->ioasa.ioasc);
5784 if (ioasc == IPR_IOASC_IR_INVALID_REQ_TYPE_OR_PKT) {
5785 ipr_cmd->job_step = ipr_setup_write_cache;
5786 return IPR_RC_JOB_CONTINUE;
5789 return ipr_reset_cmd_failed(ipr_cmd);
5793 * ipr_ioafp_mode_sense_page28 - Issue Mode Sense Page 28 to IOA
5794 * @ipr_cmd: ipr command struct
5796 * This function send a Page 28 mode sense to the IOA to
5797 * retrieve SCSI bus attributes.
5802 static int ipr_ioafp_mode_sense_page28(struct ipr_cmnd *ipr_cmd)
5804 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
5807 ipr_build_mode_sense(ipr_cmd, cpu_to_be32(IPR_IOA_RES_HANDLE),
5808 0x28, ioa_cfg->vpd_cbs_dma +
5809 offsetof(struct ipr_misc_cbs, mode_pages),
5810 sizeof(struct ipr_mode_pages));
5812 ipr_cmd->job_step = ipr_ioafp_mode_select_page28;
5813 ipr_cmd->job_step_failed = ipr_reset_mode_sense_failed;
5815 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT);
5818 return IPR_RC_JOB_RETURN;
5822 * ipr_ioafp_mode_select_page24 - Issue Mode Select to IOA
5823 * @ipr_cmd: ipr command struct
5825 * This function enables dual IOA RAID support if possible.
5830 static int ipr_ioafp_mode_select_page24(struct ipr_cmnd *ipr_cmd)
5832 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
5833 struct ipr_mode_pages *mode_pages = &ioa_cfg->vpd_cbs->mode_pages;
5834 struct ipr_mode_page24 *mode_page;
5838 mode_page = ipr_get_mode_page(mode_pages, 0x24,
5839 sizeof(struct ipr_mode_page24));
5842 mode_page->flags |= IPR_ENABLE_DUAL_IOA_AF;
5844 length = mode_pages->hdr.length + 1;
5845 mode_pages->hdr.length = 0;
5847 ipr_build_mode_select(ipr_cmd, cpu_to_be32(IPR_IOA_RES_HANDLE), 0x11,
5848 ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, mode_pages),
5851 ipr_cmd->job_step = ipr_ioafp_mode_sense_page28;
5852 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT);
5855 return IPR_RC_JOB_RETURN;
5859 * ipr_reset_mode_sense_page24_failed - Handle failure of IOAFP mode sense
5860 * @ipr_cmd: ipr command struct
5862 * This function handles the failure of a Mode Sense to the IOAFP.
5863 * Some adapters do not handle all mode pages.
5866 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
5868 static int ipr_reset_mode_sense_page24_failed(struct ipr_cmnd *ipr_cmd)
5870 u32 ioasc = be32_to_cpu(ipr_cmd->ioasa.ioasc);
5872 if (ioasc == IPR_IOASC_IR_INVALID_REQ_TYPE_OR_PKT) {
5873 ipr_cmd->job_step = ipr_ioafp_mode_sense_page28;
5874 return IPR_RC_JOB_CONTINUE;
5877 return ipr_reset_cmd_failed(ipr_cmd);
5881 * ipr_ioafp_mode_sense_page24 - Issue Page 24 Mode Sense to IOA
5882 * @ipr_cmd: ipr command struct
5884 * This function send a mode sense to the IOA to retrieve
5885 * the IOA Advanced Function Control mode page.
5890 static int ipr_ioafp_mode_sense_page24(struct ipr_cmnd *ipr_cmd)
5892 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
5895 ipr_build_mode_sense(ipr_cmd, cpu_to_be32(IPR_IOA_RES_HANDLE),
5896 0x24, ioa_cfg->vpd_cbs_dma +
5897 offsetof(struct ipr_misc_cbs, mode_pages),
5898 sizeof(struct ipr_mode_pages));
5900 ipr_cmd->job_step = ipr_ioafp_mode_select_page24;
5901 ipr_cmd->job_step_failed = ipr_reset_mode_sense_page24_failed;
5903 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT);
5906 return IPR_RC_JOB_RETURN;
5910 * ipr_init_res_table - Initialize the resource table
5911 * @ipr_cmd: ipr command struct
5913 * This function looks through the existing resource table, comparing
5914 * it with the config table. This function will take care of old/new
5915 * devices and schedule adding/removing them from the mid-layer
5919 * IPR_RC_JOB_CONTINUE
5921 static int ipr_init_res_table(struct ipr_cmnd *ipr_cmd)
5923 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
5924 struct ipr_resource_entry *res, *temp;
5925 struct ipr_config_table_entry *cfgte;
5930 if (ioa_cfg->cfg_table->hdr.flags & IPR_UCODE_DOWNLOAD_REQ)
5931 dev_err(&ioa_cfg->pdev->dev, "Microcode download required\n");
5933 list_for_each_entry_safe(res, temp, &ioa_cfg->used_res_q, queue)
5934 list_move_tail(&res->queue, &old_res);
5936 for (i = 0; i < ioa_cfg->cfg_table->hdr.num_entries; i++) {
5937 cfgte = &ioa_cfg->cfg_table->dev[i];
5940 list_for_each_entry_safe(res, temp, &old_res, queue) {
5941 if (!memcmp(&res->cfgte.res_addr,
5942 &cfgte->res_addr, sizeof(cfgte->res_addr))) {
5943 list_move_tail(&res->queue, &ioa_cfg->used_res_q);
5950 if (list_empty(&ioa_cfg->free_res_q)) {
5951 dev_err(&ioa_cfg->pdev->dev, "Too many devices attached\n");
5956 res = list_entry(ioa_cfg->free_res_q.next,
5957 struct ipr_resource_entry, queue);
5958 list_move_tail(&res->queue, &ioa_cfg->used_res_q);
5959 ipr_init_res_entry(res);
5964 memcpy(&res->cfgte, cfgte, sizeof(struct ipr_config_table_entry));
5967 list_for_each_entry_safe(res, temp, &old_res, queue) {
5969 res->del_from_ml = 1;
5970 res->cfgte.res_handle = IPR_INVALID_RES_HANDLE;
5971 list_move_tail(&res->queue, &ioa_cfg->used_res_q);
5973 list_move_tail(&res->queue, &ioa_cfg->free_res_q);
5977 if (ioa_cfg->dual_raid && ipr_dual_ioa_raid)
5978 ipr_cmd->job_step = ipr_ioafp_mode_sense_page24;
5980 ipr_cmd->job_step = ipr_ioafp_mode_sense_page28;
5983 return IPR_RC_JOB_CONTINUE;
5987 * ipr_ioafp_query_ioa_cfg - Send a Query IOA Config to the adapter.
5988 * @ipr_cmd: ipr command struct
5990 * This function sends a Query IOA Configuration command
5991 * to the adapter to retrieve the IOA configuration table.
5996 static int ipr_ioafp_query_ioa_cfg(struct ipr_cmnd *ipr_cmd)
5998 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
5999 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
6000 struct ipr_ioadl_desc *ioadl = ipr_cmd->ioadl;
6001 struct ipr_inquiry_page3 *ucode_vpd = &ioa_cfg->vpd_cbs->page3_data;
6002 struct ipr_inquiry_cap *cap = &ioa_cfg->vpd_cbs->cap;
6005 if (cap->cap & IPR_CAP_DUAL_IOA_RAID)
6006 ioa_cfg->dual_raid = 1;
6007 dev_info(&ioa_cfg->pdev->dev, "Adapter firmware version: %02X%02X%02X%02X\n",
6008 ucode_vpd->major_release, ucode_vpd->card_type,
6009 ucode_vpd->minor_release[0], ucode_vpd->minor_release[1]);
6010 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_IOACMD;
6011 ioarcb->res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE);
6013 ioarcb->cmd_pkt.cdb[0] = IPR_QUERY_IOA_CONFIG;
6014 ioarcb->cmd_pkt.cdb[7] = (sizeof(struct ipr_config_table) >> 8) & 0xff;
6015 ioarcb->cmd_pkt.cdb[8] = sizeof(struct ipr_config_table) & 0xff;
6017 ioarcb->read_ioadl_len = cpu_to_be32(sizeof(struct ipr_ioadl_desc));
6018 ioarcb->read_data_transfer_length =
6019 cpu_to_be32(sizeof(struct ipr_config_table));
6021 ioadl->address = cpu_to_be32(ioa_cfg->cfg_table_dma);
6022 ioadl->flags_and_data_len =
6023 cpu_to_be32(IPR_IOADL_FLAGS_READ_LAST | sizeof(struct ipr_config_table));
6025 ipr_cmd->job_step = ipr_init_res_table;
6027 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT);
6030 return IPR_RC_JOB_RETURN;
6034 * ipr_ioafp_inquiry - Send an Inquiry to the adapter.
6035 * @ipr_cmd: ipr command struct
6037 * This utility function sends an inquiry to the adapter.
6042 static void ipr_ioafp_inquiry(struct ipr_cmnd *ipr_cmd, u8 flags, u8 page,
6043 u32 dma_addr, u8 xfer_len)
6045 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
6046 struct ipr_ioadl_desc *ioadl = ipr_cmd->ioadl;
6049 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_SCSICDB;
6050 ioarcb->res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE);
6052 ioarcb->cmd_pkt.cdb[0] = INQUIRY;
6053 ioarcb->cmd_pkt.cdb[1] = flags;
6054 ioarcb->cmd_pkt.cdb[2] = page;
6055 ioarcb->cmd_pkt.cdb[4] = xfer_len;
6057 ioarcb->read_ioadl_len = cpu_to_be32(sizeof(struct ipr_ioadl_desc));
6058 ioarcb->read_data_transfer_length = cpu_to_be32(xfer_len);
6060 ioadl->address = cpu_to_be32(dma_addr);
6061 ioadl->flags_and_data_len =
6062 cpu_to_be32(IPR_IOADL_FLAGS_READ_LAST | xfer_len);
6064 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT);
6069 * ipr_inquiry_page_supported - Is the given inquiry page supported
6070 * @page0: inquiry page 0 buffer
6073 * This function determines if the specified inquiry page is supported.
6076 * 1 if page is supported / 0 if not
6078 static int ipr_inquiry_page_supported(struct ipr_inquiry_page0 *page0, u8 page)
6082 for (i = 0; i < min_t(u8, page0->len, IPR_INQUIRY_PAGE0_ENTRIES); i++)
6083 if (page0->page[i] == page)
6090 * ipr_ioafp_cap_inquiry - Send a Page 0xD0 Inquiry to the adapter.
6091 * @ipr_cmd: ipr command struct
6093 * This function sends a Page 0xD0 inquiry to the adapter
6094 * to retrieve adapter capabilities.
6097 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
6099 static int ipr_ioafp_cap_inquiry(struct ipr_cmnd *ipr_cmd)
6101 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6102 struct ipr_inquiry_page0 *page0 = &ioa_cfg->vpd_cbs->page0_data;
6103 struct ipr_inquiry_cap *cap = &ioa_cfg->vpd_cbs->cap;
6106 ipr_cmd->job_step = ipr_ioafp_query_ioa_cfg;
6107 memset(cap, 0, sizeof(*cap));
6109 if (ipr_inquiry_page_supported(page0, 0xD0)) {
6110 ipr_ioafp_inquiry(ipr_cmd, 1, 0xD0,
6111 ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, cap),
6112 sizeof(struct ipr_inquiry_cap));
6113 return IPR_RC_JOB_RETURN;
6117 return IPR_RC_JOB_CONTINUE;
6121 * ipr_ioafp_page3_inquiry - Send a Page 3 Inquiry to the adapter.
6122 * @ipr_cmd: ipr command struct
6124 * This function sends a Page 3 inquiry to the adapter
6125 * to retrieve software VPD information.
6128 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
6130 static int ipr_ioafp_page3_inquiry(struct ipr_cmnd *ipr_cmd)
6132 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6133 struct ipr_inquiry_page0 *page0 = &ioa_cfg->vpd_cbs->page0_data;
6137 if (!ipr_inquiry_page_supported(page0, 1))
6138 ioa_cfg->cache_state = CACHE_NONE;
6140 ipr_cmd->job_step = ipr_ioafp_cap_inquiry;
6142 ipr_ioafp_inquiry(ipr_cmd, 1, 3,
6143 ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, page3_data),
6144 sizeof(struct ipr_inquiry_page3));
6147 return IPR_RC_JOB_RETURN;
6151 * ipr_ioafp_page0_inquiry - Send a Page 0 Inquiry to the adapter.
6152 * @ipr_cmd: ipr command struct
6154 * This function sends a Page 0 inquiry to the adapter
6155 * to retrieve supported inquiry pages.
6158 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
6160 static int ipr_ioafp_page0_inquiry(struct ipr_cmnd *ipr_cmd)
6162 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6167 /* Grab the type out of the VPD and store it away */
6168 memcpy(type, ioa_cfg->vpd_cbs->ioa_vpd.std_inq_data.vpids.product_id, 4);
6170 ioa_cfg->type = simple_strtoul((char *)type, NULL, 16);
6172 ipr_cmd->job_step = ipr_ioafp_page3_inquiry;
6174 ipr_ioafp_inquiry(ipr_cmd, 1, 0,
6175 ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, page0_data),
6176 sizeof(struct ipr_inquiry_page0));
6179 return IPR_RC_JOB_RETURN;
6183 * ipr_ioafp_std_inquiry - Send a Standard Inquiry to the adapter.
6184 * @ipr_cmd: ipr command struct
6186 * This function sends a standard inquiry to the adapter.
6191 static int ipr_ioafp_std_inquiry(struct ipr_cmnd *ipr_cmd)
6193 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6196 ipr_cmd->job_step = ipr_ioafp_page0_inquiry;
6198 ipr_ioafp_inquiry(ipr_cmd, 0, 0,
6199 ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, ioa_vpd),
6200 sizeof(struct ipr_ioa_vpd));
6203 return IPR_RC_JOB_RETURN;
6207 * ipr_ioafp_indentify_hrrq - Send Identify Host RRQ.
6208 * @ipr_cmd: ipr command struct
6210 * This function send an Identify Host Request Response Queue
6211 * command to establish the HRRQ with the adapter.
6216 static int ipr_ioafp_indentify_hrrq(struct ipr_cmnd *ipr_cmd)
6218 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6219 struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb;
6222 dev_info(&ioa_cfg->pdev->dev, "Starting IOA initialization sequence.\n");
6224 ioarcb->cmd_pkt.cdb[0] = IPR_ID_HOST_RR_Q;
6225 ioarcb->res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE);
6227 ioarcb->cmd_pkt.request_type = IPR_RQTYPE_IOACMD;
6228 ioarcb->cmd_pkt.cdb[2] =
6229 ((u32) ioa_cfg->host_rrq_dma >> 24) & 0xff;
6230 ioarcb->cmd_pkt.cdb[3] =
6231 ((u32) ioa_cfg->host_rrq_dma >> 16) & 0xff;
6232 ioarcb->cmd_pkt.cdb[4] =
6233 ((u32) ioa_cfg->host_rrq_dma >> 8) & 0xff;
6234 ioarcb->cmd_pkt.cdb[5] =
6235 ((u32) ioa_cfg->host_rrq_dma) & 0xff;
6236 ioarcb->cmd_pkt.cdb[7] =
6237 ((sizeof(u32) * IPR_NUM_CMD_BLKS) >> 8) & 0xff;
6238 ioarcb->cmd_pkt.cdb[8] =
6239 (sizeof(u32) * IPR_NUM_CMD_BLKS) & 0xff;
6241 ipr_cmd->job_step = ipr_ioafp_std_inquiry;
6243 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT);
6246 return IPR_RC_JOB_RETURN;
6250 * ipr_reset_timer_done - Adapter reset timer function
6251 * @ipr_cmd: ipr command struct
6253 * Description: This function is used in adapter reset processing
6254 * for timing events. If the reset_cmd pointer in the IOA
6255 * config struct is not this adapter's we are doing nested
6256 * resets and fail_all_ops will take care of freeing the
6262 static void ipr_reset_timer_done(struct ipr_cmnd *ipr_cmd)
6264 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6265 unsigned long lock_flags = 0;
6267 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
6269 if (ioa_cfg->reset_cmd == ipr_cmd) {
6270 list_del(&ipr_cmd->queue);
6271 ipr_cmd->done(ipr_cmd);
6274 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
6278 * ipr_reset_start_timer - Start a timer for adapter reset job
6279 * @ipr_cmd: ipr command struct
6280 * @timeout: timeout value
6282 * Description: This function is used in adapter reset processing
6283 * for timing events. If the reset_cmd pointer in the IOA
6284 * config struct is not this adapter's we are doing nested
6285 * resets and fail_all_ops will take care of freeing the
6291 static void ipr_reset_start_timer(struct ipr_cmnd *ipr_cmd,
6292 unsigned long timeout)
6294 list_add_tail(&ipr_cmd->queue, &ipr_cmd->ioa_cfg->pending_q);
6295 ipr_cmd->done = ipr_reset_ioa_job;
6297 ipr_cmd->timer.data = (unsigned long) ipr_cmd;
6298 ipr_cmd->timer.expires = jiffies + timeout;
6299 ipr_cmd->timer.function = (void (*)(unsigned long))ipr_reset_timer_done;
6300 add_timer(&ipr_cmd->timer);
6304 * ipr_init_ioa_mem - Initialize ioa_cfg control block
6305 * @ioa_cfg: ioa cfg struct
6310 static void ipr_init_ioa_mem(struct ipr_ioa_cfg *ioa_cfg)
6312 memset(ioa_cfg->host_rrq, 0, sizeof(u32) * IPR_NUM_CMD_BLKS);
6314 /* Initialize Host RRQ pointers */
6315 ioa_cfg->hrrq_start = ioa_cfg->host_rrq;
6316 ioa_cfg->hrrq_end = &ioa_cfg->host_rrq[IPR_NUM_CMD_BLKS - 1];
6317 ioa_cfg->hrrq_curr = ioa_cfg->hrrq_start;
6318 ioa_cfg->toggle_bit = 1;
6320 /* Zero out config table */
6321 memset(ioa_cfg->cfg_table, 0, sizeof(struct ipr_config_table));
6325 * ipr_reset_enable_ioa - Enable the IOA following a reset.
6326 * @ipr_cmd: ipr command struct
6328 * This function reinitializes some control blocks and
6329 * enables destructive diagnostics on the adapter.
6334 static int ipr_reset_enable_ioa(struct ipr_cmnd *ipr_cmd)
6336 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6337 volatile u32 int_reg;
6340 ipr_cmd->job_step = ipr_ioafp_indentify_hrrq;
6341 ipr_init_ioa_mem(ioa_cfg);
6343 ioa_cfg->allow_interrupts = 1;
6344 int_reg = readl(ioa_cfg->regs.sense_interrupt_reg);
6346 if (int_reg & IPR_PCII_IOA_TRANS_TO_OPER) {
6347 writel((IPR_PCII_ERROR_INTERRUPTS | IPR_PCII_HRRQ_UPDATED),
6348 ioa_cfg->regs.clr_interrupt_mask_reg);
6349 int_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg);
6350 return IPR_RC_JOB_CONTINUE;
6353 /* Enable destructive diagnostics on IOA */
6354 writel(ioa_cfg->doorbell, ioa_cfg->regs.set_uproc_interrupt_reg);
6356 writel(IPR_PCII_OPER_INTERRUPTS, ioa_cfg->regs.clr_interrupt_mask_reg);
6357 int_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg);
6359 dev_info(&ioa_cfg->pdev->dev, "Initializing IOA.\n");
6361 ipr_cmd->timer.data = (unsigned long) ipr_cmd;
6362 ipr_cmd->timer.expires = jiffies + (ioa_cfg->transop_timeout * HZ);
6363 ipr_cmd->timer.function = (void (*)(unsigned long))ipr_oper_timeout;
6364 ipr_cmd->done = ipr_reset_ioa_job;
6365 add_timer(&ipr_cmd->timer);
6366 list_add_tail(&ipr_cmd->queue, &ioa_cfg->pending_q);
6369 return IPR_RC_JOB_RETURN;
6373 * ipr_reset_wait_for_dump - Wait for a dump to timeout.
6374 * @ipr_cmd: ipr command struct
6376 * This function is invoked when an adapter dump has run out
6377 * of processing time.
6380 * IPR_RC_JOB_CONTINUE
6382 static int ipr_reset_wait_for_dump(struct ipr_cmnd *ipr_cmd)
6384 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6386 if (ioa_cfg->sdt_state == GET_DUMP)
6387 ioa_cfg->sdt_state = ABORT_DUMP;
6389 ipr_cmd->job_step = ipr_reset_alert;
6391 return IPR_RC_JOB_CONTINUE;
6395 * ipr_unit_check_no_data - Log a unit check/no data error log
6396 * @ioa_cfg: ioa config struct
6398 * Logs an error indicating the adapter unit checked, but for some
6399 * reason, we were unable to fetch the unit check buffer.
6404 static void ipr_unit_check_no_data(struct ipr_ioa_cfg *ioa_cfg)
6406 ioa_cfg->errors_logged++;
6407 dev_err(&ioa_cfg->pdev->dev, "IOA unit check with no data\n");
6411 * ipr_get_unit_check_buffer - Get the unit check buffer from the IOA
6412 * @ioa_cfg: ioa config struct
6414 * Fetches the unit check buffer from the adapter by clocking the data
6415 * through the mailbox register.
6420 static void ipr_get_unit_check_buffer(struct ipr_ioa_cfg *ioa_cfg)
6422 unsigned long mailbox;
6423 struct ipr_hostrcb *hostrcb;
6424 struct ipr_uc_sdt sdt;
6428 mailbox = readl(ioa_cfg->ioa_mailbox);
6430 if (!ipr_sdt_is_fmt2(mailbox)) {
6431 ipr_unit_check_no_data(ioa_cfg);
6435 memset(&sdt, 0, sizeof(struct ipr_uc_sdt));
6436 rc = ipr_get_ldump_data_section(ioa_cfg, mailbox, (__be32 *) &sdt,
6437 (sizeof(struct ipr_uc_sdt)) / sizeof(__be32));
6439 if (rc || (be32_to_cpu(sdt.hdr.state) != IPR_FMT2_SDT_READY_TO_USE) ||
6440 !(sdt.entry[0].flags & IPR_SDT_VALID_ENTRY)) {
6441 ipr_unit_check_no_data(ioa_cfg);
6445 /* Find length of the first sdt entry (UC buffer) */
6446 length = (be32_to_cpu(sdt.entry[0].end_offset) -
6447 be32_to_cpu(sdt.entry[0].bar_str_offset)) & IPR_FMT2_MBX_ADDR_MASK;
6449 hostrcb = list_entry(ioa_cfg->hostrcb_free_q.next,
6450 struct ipr_hostrcb, queue);
6451 list_del(&hostrcb->queue);
6452 memset(&hostrcb->hcam, 0, sizeof(hostrcb->hcam));
6454 rc = ipr_get_ldump_data_section(ioa_cfg,
6455 be32_to_cpu(sdt.entry[0].bar_str_offset),
6456 (__be32 *)&hostrcb->hcam,
6457 min(length, (int)sizeof(hostrcb->hcam)) / sizeof(__be32));
6460 ipr_handle_log_data(ioa_cfg, hostrcb);
6461 ioasc = be32_to_cpu(hostrcb->hcam.u.error.failing_dev_ioasc);
6462 if (ioasc == IPR_IOASC_NR_IOA_RESET_REQUIRED &&
6463 ioa_cfg->sdt_state == GET_DUMP)
6464 ioa_cfg->sdt_state = WAIT_FOR_DUMP;
6466 ipr_unit_check_no_data(ioa_cfg);
6468 list_add_tail(&hostrcb->queue, &ioa_cfg->hostrcb_free_q);
6472 * ipr_reset_restore_cfg_space - Restore PCI config space.
6473 * @ipr_cmd: ipr command struct
6475 * Description: This function restores the saved PCI config space of
6476 * the adapter, fails all outstanding ops back to the callers, and
6477 * fetches the dump/unit check if applicable to this reset.
6480 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
6482 static int ipr_reset_restore_cfg_space(struct ipr_cmnd *ipr_cmd)
6484 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6488 rc = pci_restore_state(ioa_cfg->pdev);
6490 if (rc != PCIBIOS_SUCCESSFUL) {
6491 ipr_cmd->ioasa.ioasc = cpu_to_be32(IPR_IOASC_PCI_ACCESS_ERROR);
6492 return IPR_RC_JOB_CONTINUE;
6495 if (ipr_set_pcix_cmd_reg(ioa_cfg)) {
6496 ipr_cmd->ioasa.ioasc = cpu_to_be32(IPR_IOASC_PCI_ACCESS_ERROR);
6497 return IPR_RC_JOB_CONTINUE;
6500 ipr_fail_all_ops(ioa_cfg);
6502 if (ioa_cfg->ioa_unit_checked) {
6503 ioa_cfg->ioa_unit_checked = 0;
6504 ipr_get_unit_check_buffer(ioa_cfg);
6505 ipr_cmd->job_step = ipr_reset_alert;
6506 ipr_reset_start_timer(ipr_cmd, 0);
6507 return IPR_RC_JOB_RETURN;
6510 if (ioa_cfg->in_ioa_bringdown) {
6511 ipr_cmd->job_step = ipr_ioa_bringdown_done;
6513 ipr_cmd->job_step = ipr_reset_enable_ioa;
6515 if (GET_DUMP == ioa_cfg->sdt_state) {
6516 ipr_reset_start_timer(ipr_cmd, IPR_DUMP_TIMEOUT);
6517 ipr_cmd->job_step = ipr_reset_wait_for_dump;
6518 schedule_work(&ioa_cfg->work_q);
6519 return IPR_RC_JOB_RETURN;
6524 return IPR_RC_JOB_CONTINUE;
6528 * ipr_reset_bist_done - BIST has completed on the adapter.
6529 * @ipr_cmd: ipr command struct
6531 * Description: Unblock config space and resume the reset process.
6534 * IPR_RC_JOB_CONTINUE
6536 static int ipr_reset_bist_done(struct ipr_cmnd *ipr_cmd)
6539 pci_unblock_user_cfg_access(ipr_cmd->ioa_cfg->pdev);
6540 ipr_cmd->job_step = ipr_reset_restore_cfg_space;
6542 return IPR_RC_JOB_CONTINUE;
6546 * ipr_reset_start_bist - Run BIST on the adapter.
6547 * @ipr_cmd: ipr command struct
6549 * Description: This function runs BIST on the adapter, then delays 2 seconds.
6552 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
6554 static int ipr_reset_start_bist(struct ipr_cmnd *ipr_cmd)
6556 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6560 pci_block_user_cfg_access(ioa_cfg->pdev);
6561 rc = pci_write_config_byte(ioa_cfg->pdev, PCI_BIST, PCI_BIST_START);
6563 if (rc != PCIBIOS_SUCCESSFUL) {
6564 pci_unblock_user_cfg_access(ipr_cmd->ioa_cfg->pdev);
6565 ipr_cmd->ioasa.ioasc = cpu_to_be32(IPR_IOASC_PCI_ACCESS_ERROR);
6566 rc = IPR_RC_JOB_CONTINUE;
6568 ipr_cmd->job_step = ipr_reset_bist_done;
6569 ipr_reset_start_timer(ipr_cmd, IPR_WAIT_FOR_BIST_TIMEOUT);
6570 rc = IPR_RC_JOB_RETURN;
6578 * ipr_reset_slot_reset_done - Clear PCI reset to the adapter
6579 * @ipr_cmd: ipr command struct
6581 * Description: This clears PCI reset to the adapter and delays two seconds.
6586 static int ipr_reset_slot_reset_done(struct ipr_cmnd *ipr_cmd)
6589 pci_set_pcie_reset_state(ipr_cmd->ioa_cfg->pdev, pcie_deassert_reset);
6590 ipr_cmd->job_step = ipr_reset_bist_done;
6591 ipr_reset_start_timer(ipr_cmd, IPR_WAIT_FOR_BIST_TIMEOUT);
6593 return IPR_RC_JOB_RETURN;
6597 * ipr_reset_slot_reset - Reset the PCI slot of the adapter.
6598 * @ipr_cmd: ipr command struct
6600 * Description: This asserts PCI reset to the adapter.
6605 static int ipr_reset_slot_reset(struct ipr_cmnd *ipr_cmd)
6607 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6608 struct pci_dev *pdev = ioa_cfg->pdev;
6611 pci_block_user_cfg_access(pdev);
6612 pci_set_pcie_reset_state(pdev, pcie_warm_reset);
6613 ipr_cmd->job_step = ipr_reset_slot_reset_done;
6614 ipr_reset_start_timer(ipr_cmd, IPR_PCI_RESET_TIMEOUT);
6616 return IPR_RC_JOB_RETURN;
6620 * ipr_reset_allowed - Query whether or not IOA can be reset
6621 * @ioa_cfg: ioa config struct
6624 * 0 if reset not allowed / non-zero if reset is allowed
6626 static int ipr_reset_allowed(struct ipr_ioa_cfg *ioa_cfg)
6628 volatile u32 temp_reg;
6630 temp_reg = readl(ioa_cfg->regs.sense_interrupt_reg);
6631 return ((temp_reg & IPR_PCII_CRITICAL_OPERATION) == 0);
6635 * ipr_reset_wait_to_start_bist - Wait for permission to reset IOA.
6636 * @ipr_cmd: ipr command struct
6638 * Description: This function waits for adapter permission to run BIST,
6639 * then runs BIST. If the adapter does not give permission after a
6640 * reasonable time, we will reset the adapter anyway. The impact of
6641 * resetting the adapter without warning the adapter is the risk of
6642 * losing the persistent error log on the adapter. If the adapter is
6643 * reset while it is writing to the flash on the adapter, the flash
6644 * segment will have bad ECC and be zeroed.
6647 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
6649 static int ipr_reset_wait_to_start_bist(struct ipr_cmnd *ipr_cmd)
6651 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6652 int rc = IPR_RC_JOB_RETURN;
6654 if (!ipr_reset_allowed(ioa_cfg) && ipr_cmd->u.time_left) {
6655 ipr_cmd->u.time_left -= IPR_CHECK_FOR_RESET_TIMEOUT;
6656 ipr_reset_start_timer(ipr_cmd, IPR_CHECK_FOR_RESET_TIMEOUT);
6658 ipr_cmd->job_step = ioa_cfg->reset;
6659 rc = IPR_RC_JOB_CONTINUE;
6666 * ipr_reset_alert_part2 - Alert the adapter of a pending reset
6667 * @ipr_cmd: ipr command struct
6669 * Description: This function alerts the adapter that it will be reset.
6670 * If memory space is not currently enabled, proceed directly
6671 * to running BIST on the adapter. The timer must always be started
6672 * so we guarantee we do not run BIST from ipr_isr.
6677 static int ipr_reset_alert(struct ipr_cmnd *ipr_cmd)
6679 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6684 rc = pci_read_config_word(ioa_cfg->pdev, PCI_COMMAND, &cmd_reg);
6686 if ((rc == PCIBIOS_SUCCESSFUL) && (cmd_reg & PCI_COMMAND_MEMORY)) {
6687 ipr_mask_and_clear_interrupts(ioa_cfg, ~0);
6688 writel(IPR_UPROCI_RESET_ALERT, ioa_cfg->regs.set_uproc_interrupt_reg);
6689 ipr_cmd->job_step = ipr_reset_wait_to_start_bist;
6691 ipr_cmd->job_step = ioa_cfg->reset;
6694 ipr_cmd->u.time_left = IPR_WAIT_FOR_RESET_TIMEOUT;
6695 ipr_reset_start_timer(ipr_cmd, IPR_CHECK_FOR_RESET_TIMEOUT);
6698 return IPR_RC_JOB_RETURN;
6702 * ipr_reset_ucode_download_done - Microcode download completion
6703 * @ipr_cmd: ipr command struct
6705 * Description: This function unmaps the microcode download buffer.
6708 * IPR_RC_JOB_CONTINUE
6710 static int ipr_reset_ucode_download_done(struct ipr_cmnd *ipr_cmd)
6712 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6713 struct ipr_sglist *sglist = ioa_cfg->ucode_sglist;
6715 pci_unmap_sg(ioa_cfg->pdev, sglist->scatterlist,
6716 sglist->num_sg, DMA_TO_DEVICE);
6718 ipr_cmd->job_step = ipr_reset_alert;
6719 return IPR_RC_JOB_CONTINUE;
6723 * ipr_reset_ucode_download - Download microcode to the adapter
6724 * @ipr_cmd: ipr command struct
6726 * Description: This function checks to see if it there is microcode
6727 * to download to the adapter. If there is, a download is performed.
6730 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
6732 static int ipr_reset_ucode_download(struct ipr_cmnd *ipr_cmd)
6734 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6735 struct ipr_sglist *sglist = ioa_cfg->ucode_sglist;
6738 ipr_cmd->job_step = ipr_reset_alert;
6741 return IPR_RC_JOB_CONTINUE;
6743 ipr_cmd->ioarcb.res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE);
6744 ipr_cmd->ioarcb.cmd_pkt.request_type = IPR_RQTYPE_SCSICDB;
6745 ipr_cmd->ioarcb.cmd_pkt.cdb[0] = WRITE_BUFFER;
6746 ipr_cmd->ioarcb.cmd_pkt.cdb[1] = IPR_WR_BUF_DOWNLOAD_AND_SAVE;
6747 ipr_cmd->ioarcb.cmd_pkt.cdb[6] = (sglist->buffer_len & 0xff0000) >> 16;
6748 ipr_cmd->ioarcb.cmd_pkt.cdb[7] = (sglist->buffer_len & 0x00ff00) >> 8;
6749 ipr_cmd->ioarcb.cmd_pkt.cdb[8] = sglist->buffer_len & 0x0000ff;
6751 ipr_build_ucode_ioadl(ipr_cmd, sglist);
6752 ipr_cmd->job_step = ipr_reset_ucode_download_done;
6754 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout,
6755 IPR_WRITE_BUFFER_TIMEOUT);
6758 return IPR_RC_JOB_RETURN;
6762 * ipr_reset_shutdown_ioa - Shutdown the adapter
6763 * @ipr_cmd: ipr command struct
6765 * Description: This function issues an adapter shutdown of the
6766 * specified type to the specified adapter as part of the
6767 * adapter reset job.
6770 * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN
6772 static int ipr_reset_shutdown_ioa(struct ipr_cmnd *ipr_cmd)
6774 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6775 enum ipr_shutdown_type shutdown_type = ipr_cmd->u.shutdown_type;
6776 unsigned long timeout;
6777 int rc = IPR_RC_JOB_CONTINUE;
6780 if (shutdown_type != IPR_SHUTDOWN_NONE && !ioa_cfg->ioa_is_dead) {
6781 ipr_cmd->ioarcb.res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE);
6782 ipr_cmd->ioarcb.cmd_pkt.request_type = IPR_RQTYPE_IOACMD;
6783 ipr_cmd->ioarcb.cmd_pkt.cdb[0] = IPR_IOA_SHUTDOWN;
6784 ipr_cmd->ioarcb.cmd_pkt.cdb[1] = shutdown_type;
6786 if (shutdown_type == IPR_SHUTDOWN_NORMAL)
6787 timeout = IPR_SHUTDOWN_TIMEOUT;
6788 else if (shutdown_type == IPR_SHUTDOWN_PREPARE_FOR_NORMAL)
6789 timeout = IPR_INTERNAL_TIMEOUT;
6790 else if (ioa_cfg->dual_raid && ipr_dual_ioa_raid)
6791 timeout = IPR_DUAL_IOA_ABBR_SHUTDOWN_TO;
6793 timeout = IPR_ABBREV_SHUTDOWN_TIMEOUT;
6795 ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, timeout);
6797 rc = IPR_RC_JOB_RETURN;
6798 ipr_cmd->job_step = ipr_reset_ucode_download;
6800 ipr_cmd->job_step = ipr_reset_alert;
6807 * ipr_reset_ioa_job - Adapter reset job
6808 * @ipr_cmd: ipr command struct
6810 * Description: This function is the job router for the adapter reset job.
6815 static void ipr_reset_ioa_job(struct ipr_cmnd *ipr_cmd)
6818 struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg;
6821 ioasc = be32_to_cpu(ipr_cmd->ioasa.ioasc);
6823 if (ioa_cfg->reset_cmd != ipr_cmd) {
6825 * We are doing nested adapter resets and this is
6826 * not the current reset job.
6828 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
6832 if (IPR_IOASC_SENSE_KEY(ioasc)) {
6833 rc = ipr_cmd->job_step_failed(ipr_cmd);
6834 if (rc == IPR_RC_JOB_RETURN)
6838 ipr_reinit_ipr_cmnd(ipr_cmd);
6839 ipr_cmd->job_step_failed = ipr_reset_cmd_failed;
6840 rc = ipr_cmd->job_step(ipr_cmd);
6841 } while(rc == IPR_RC_JOB_CONTINUE);
6845 * _ipr_initiate_ioa_reset - Initiate an adapter reset
6846 * @ioa_cfg: ioa config struct
6847 * @job_step: first job step of reset job
6848 * @shutdown_type: shutdown type
6850 * Description: This function will initiate the reset of the given adapter
6851 * starting at the selected job step.
6852 * If the caller needs to wait on the completion of the reset,
6853 * the caller must sleep on the reset_wait_q.
6858 static void _ipr_initiate_ioa_reset(struct ipr_ioa_cfg *ioa_cfg,
6859 int (*job_step) (struct ipr_cmnd *),
6860 enum ipr_shutdown_type shutdown_type)
6862 struct ipr_cmnd *ipr_cmd;
6864 ioa_cfg->in_reset_reload = 1;
6865 ioa_cfg->allow_cmds = 0;
6866 scsi_block_requests(ioa_cfg->host);
6868 ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg);
6869 ioa_cfg->reset_cmd = ipr_cmd;
6870 ipr_cmd->job_step = job_step;
6871 ipr_cmd->u.shutdown_type = shutdown_type;
6873 ipr_reset_ioa_job(ipr_cmd);
6877 * ipr_initiate_ioa_reset - Initiate an adapter reset
6878 * @ioa_cfg: ioa config struct
6879 * @shutdown_type: shutdown type
6881 * Description: This function will initiate the reset of the given adapter.
6882 * If the caller needs to wait on the completion of the reset,
6883 * the caller must sleep on the reset_wait_q.
6888 static void ipr_initiate_ioa_reset(struct ipr_ioa_cfg *ioa_cfg,
6889 enum ipr_shutdown_type shutdown_type)
6891 if (ioa_cfg->ioa_is_dead)
6894 if (ioa_cfg->in_reset_reload && ioa_cfg->sdt_state == GET_DUMP)
6895 ioa_cfg->sdt_state = ABORT_DUMP;
6897 if (ioa_cfg->reset_retries++ >= IPR_NUM_RESET_RELOAD_RETRIES) {
6898 dev_err(&ioa_cfg->pdev->dev,
6899 "IOA taken offline - error recovery failed\n");
6901 ioa_cfg->reset_retries = 0;
6902 ioa_cfg->ioa_is_dead = 1;
6904 if (ioa_cfg->in_ioa_bringdown) {
6905 ioa_cfg->reset_cmd = NULL;
6906 ioa_cfg->in_reset_reload = 0;
6907 ipr_fail_all_ops(ioa_cfg);
6908 wake_up_all(&ioa_cfg->reset_wait_q);
6910 spin_unlock_irq(ioa_cfg->host->host_lock);
6911 scsi_unblock_requests(ioa_cfg->host);
6912 spin_lock_irq(ioa_cfg->host->host_lock);
6915 ioa_cfg->in_ioa_bringdown = 1;
6916 shutdown_type = IPR_SHUTDOWN_NONE;
6920 _ipr_initiate_ioa_reset(ioa_cfg, ipr_reset_shutdown_ioa,
6925 * ipr_reset_freeze - Hold off all I/O activity
6926 * @ipr_cmd: ipr command struct
6928 * Description: If the PCI slot is frozen, hold off all I/O
6929 * activity; then, as soon as the slot is available again,
6930 * initiate an adapter reset.
6932 static int ipr_reset_freeze(struct ipr_cmnd *ipr_cmd)
6934 /* Disallow new interrupts, avoid loop */
6935 ipr_cmd->ioa_cfg->allow_interrupts = 0;
6936 list_add_tail(&ipr_cmd->queue, &ipr_cmd->ioa_cfg->pending_q);
6937 ipr_cmd->done = ipr_reset_ioa_job;
6938 return IPR_RC_JOB_RETURN;
6942 * ipr_pci_frozen - Called when slot has experienced a PCI bus error.
6943 * @pdev: PCI device struct
6945 * Description: This routine is called to tell us that the PCI bus
6946 * is down. Can't do anything here, except put the device driver
6947 * into a holding pattern, waiting for the PCI bus to come back.
6949 static void ipr_pci_frozen(struct pci_dev *pdev)
6951 unsigned long flags = 0;
6952 struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev);
6954 spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
6955 _ipr_initiate_ioa_reset(ioa_cfg, ipr_reset_freeze, IPR_SHUTDOWN_NONE);
6956 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
6960 * ipr_pci_slot_reset - Called when PCI slot has been reset.
6961 * @pdev: PCI device struct
6963 * Description: This routine is called by the pci error recovery
6964 * code after the PCI slot has been reset, just before we
6965 * should resume normal operations.
6967 static pci_ers_result_t ipr_pci_slot_reset(struct pci_dev *pdev)
6969 unsigned long flags = 0;
6970 struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev);
6972 spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
6973 if (ioa_cfg->needs_warm_reset)
6974 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
6976 _ipr_initiate_ioa_reset(ioa_cfg, ipr_reset_restore_cfg_space,
6978 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
6979 return PCI_ERS_RESULT_RECOVERED;
6983 * ipr_pci_perm_failure - Called when PCI slot is dead for good.
6984 * @pdev: PCI device struct
6986 * Description: This routine is called when the PCI bus has
6987 * permanently failed.
6989 static void ipr_pci_perm_failure(struct pci_dev *pdev)
6991 unsigned long flags = 0;
6992 struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev);
6994 spin_lock_irqsave(ioa_cfg->host->host_lock, flags);
6995 if (ioa_cfg->sdt_state == WAIT_FOR_DUMP)
6996 ioa_cfg->sdt_state = ABORT_DUMP;
6997 ioa_cfg->reset_retries = IPR_NUM_RESET_RELOAD_RETRIES;
6998 ioa_cfg->in_ioa_bringdown = 1;
6999 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
7000 spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags);
7004 * ipr_pci_error_detected - Called when a PCI error is detected.
7005 * @pdev: PCI device struct
7006 * @state: PCI channel state
7008 * Description: Called when a PCI error is detected.
7011 * PCI_ERS_RESULT_NEED_RESET or PCI_ERS_RESULT_DISCONNECT
7013 static pci_ers_result_t ipr_pci_error_detected(struct pci_dev *pdev,
7014 pci_channel_state_t state)
7017 case pci_channel_io_frozen:
7018 ipr_pci_frozen(pdev);
7019 return PCI_ERS_RESULT_NEED_RESET;
7020 case pci_channel_io_perm_failure:
7021 ipr_pci_perm_failure(pdev);
7022 return PCI_ERS_RESULT_DISCONNECT;
7027 return PCI_ERS_RESULT_NEED_RESET;
7031 * ipr_probe_ioa_part2 - Initializes IOAs found in ipr_probe_ioa(..)
7032 * @ioa_cfg: ioa cfg struct
7034 * Description: This is the second phase of adapter intialization
7035 * This function takes care of initilizing the adapter to the point
7036 * where it can accept new commands.
7039 * 0 on success / -EIO on failure
7041 static int __devinit ipr_probe_ioa_part2(struct ipr_ioa_cfg *ioa_cfg)
7044 unsigned long host_lock_flags = 0;
7047 spin_lock_irqsave(ioa_cfg->host->host_lock, host_lock_flags);
7048 dev_dbg(&ioa_cfg->pdev->dev, "ioa_cfg adx: 0x%p\n", ioa_cfg);
7049 if (ioa_cfg->needs_hard_reset) {
7050 ioa_cfg->needs_hard_reset = 0;
7051 ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE);
7053 _ipr_initiate_ioa_reset(ioa_cfg, ipr_reset_enable_ioa,
7056 spin_unlock_irqrestore(ioa_cfg->host->host_lock, host_lock_flags);
7057 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
7058 spin_lock_irqsave(ioa_cfg->host->host_lock, host_lock_flags);
7060 if (ioa_cfg->ioa_is_dead) {
7062 } else if (ipr_invalid_adapter(ioa_cfg)) {
7066 dev_err(&ioa_cfg->pdev->dev,
7067 "Adapter not supported in this hardware configuration.\n");
7070 spin_unlock_irqrestore(ioa_cfg->host->host_lock, host_lock_flags);
7077 * ipr_free_cmd_blks - Frees command blocks allocated for an adapter
7078 * @ioa_cfg: ioa config struct
7083 static void ipr_free_cmd_blks(struct ipr_ioa_cfg *ioa_cfg)
7087 for (i = 0; i < IPR_NUM_CMD_BLKS; i++) {
7088 if (ioa_cfg->ipr_cmnd_list[i])
7089 pci_pool_free(ioa_cfg->ipr_cmd_pool,
7090 ioa_cfg->ipr_cmnd_list[i],
7091 ioa_cfg->ipr_cmnd_list_dma[i]);
7093 ioa_cfg->ipr_cmnd_list[i] = NULL;
7096 if (ioa_cfg->ipr_cmd_pool)
7097 pci_pool_destroy (ioa_cfg->ipr_cmd_pool);
7099 ioa_cfg->ipr_cmd_pool = NULL;
7103 * ipr_free_mem - Frees memory allocated for an adapter
7104 * @ioa_cfg: ioa cfg struct
7109 static void ipr_free_mem(struct ipr_ioa_cfg *ioa_cfg)
7113 kfree(ioa_cfg->res_entries);
7114 pci_free_consistent(ioa_cfg->pdev, sizeof(struct ipr_misc_cbs),
7115 ioa_cfg->vpd_cbs, ioa_cfg->vpd_cbs_dma);
7116 ipr_free_cmd_blks(ioa_cfg);
7117 pci_free_consistent(ioa_cfg->pdev, sizeof(u32) * IPR_NUM_CMD_BLKS,
7118 ioa_cfg->host_rrq, ioa_cfg->host_rrq_dma);
7119 pci_free_consistent(ioa_cfg->pdev, sizeof(struct ipr_config_table),
7121 ioa_cfg->cfg_table_dma);
7123 for (i = 0; i < IPR_NUM_HCAMS; i++) {
7124 pci_free_consistent(ioa_cfg->pdev,
7125 sizeof(struct ipr_hostrcb),
7126 ioa_cfg->hostrcb[i],
7127 ioa_cfg->hostrcb_dma[i]);
7130 ipr_free_dump(ioa_cfg);
7131 kfree(ioa_cfg->trace);
7135 * ipr_free_all_resources - Free all allocated resources for an adapter.
7136 * @ipr_cmd: ipr command struct
7138 * This function frees all allocated resources for the
7139 * specified adapter.
7144 static void ipr_free_all_resources(struct ipr_ioa_cfg *ioa_cfg)
7146 struct pci_dev *pdev = ioa_cfg->pdev;
7149 free_irq(pdev->irq, ioa_cfg);
7150 iounmap(ioa_cfg->hdw_dma_regs);
7151 pci_release_regions(pdev);
7152 ipr_free_mem(ioa_cfg);
7153 scsi_host_put(ioa_cfg->host);
7154 pci_disable_device(pdev);
7159 * ipr_alloc_cmd_blks - Allocate command blocks for an adapter
7160 * @ioa_cfg: ioa config struct
7163 * 0 on success / -ENOMEM on allocation failure
7165 static int __devinit ipr_alloc_cmd_blks(struct ipr_ioa_cfg *ioa_cfg)
7167 struct ipr_cmnd *ipr_cmd;
7168 struct ipr_ioarcb *ioarcb;
7169 dma_addr_t dma_addr;
7172 ioa_cfg->ipr_cmd_pool = pci_pool_create (IPR_NAME, ioa_cfg->pdev,
7173 sizeof(struct ipr_cmnd), 8, 0);
7175 if (!ioa_cfg->ipr_cmd_pool)
7178 for (i = 0; i < IPR_NUM_CMD_BLKS; i++) {
7179 ipr_cmd = pci_pool_alloc (ioa_cfg->ipr_cmd_pool, GFP_KERNEL, &dma_addr);
7182 ipr_free_cmd_blks(ioa_cfg);
7186 memset(ipr_cmd, 0, sizeof(*ipr_cmd));
7187 ioa_cfg->ipr_cmnd_list[i] = ipr_cmd;
7188 ioa_cfg->ipr_cmnd_list_dma[i] = dma_addr;
7190 ioarcb = &ipr_cmd->ioarcb;
7191 ioarcb->ioarcb_host_pci_addr = cpu_to_be32(dma_addr);
7192 ioarcb->host_response_handle = cpu_to_be32(i << 2);
7193 ioarcb->write_ioadl_addr =
7194 cpu_to_be32(dma_addr + offsetof(struct ipr_cmnd, ioadl));
7195 ioarcb->read_ioadl_addr = ioarcb->write_ioadl_addr;
7196 ioarcb->ioasa_host_pci_addr =
7197 cpu_to_be32(dma_addr + offsetof(struct ipr_cmnd, ioasa));
7198 ioarcb->ioasa_len = cpu_to_be16(sizeof(struct ipr_ioasa));
7199 ipr_cmd->cmd_index = i;
7200 ipr_cmd->ioa_cfg = ioa_cfg;
7201 ipr_cmd->sense_buffer_dma = dma_addr +
7202 offsetof(struct ipr_cmnd, sense_buffer);
7204 list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
7211 * ipr_alloc_mem - Allocate memory for an adapter
7212 * @ioa_cfg: ioa config struct
7215 * 0 on success / non-zero for error
7217 static int __devinit ipr_alloc_mem(struct ipr_ioa_cfg *ioa_cfg)
7219 struct pci_dev *pdev = ioa_cfg->pdev;
7220 int i, rc = -ENOMEM;
7223 ioa_cfg->res_entries = kzalloc(sizeof(struct ipr_resource_entry) *
7224 IPR_MAX_PHYSICAL_DEVS, GFP_KERNEL);
7226 if (!ioa_cfg->res_entries)
7229 for (i = 0; i < IPR_MAX_PHYSICAL_DEVS; i++)
7230 list_add_tail(&ioa_cfg->res_entries[i].queue, &ioa_cfg->free_res_q);
7232 ioa_cfg->vpd_cbs = pci_alloc_consistent(ioa_cfg->pdev,
7233 sizeof(struct ipr_misc_cbs),
7234 &ioa_cfg->vpd_cbs_dma);
7236 if (!ioa_cfg->vpd_cbs)
7237 goto out_free_res_entries;
7239 if (ipr_alloc_cmd_blks(ioa_cfg))
7240 goto out_free_vpd_cbs;
7242 ioa_cfg->host_rrq = pci_alloc_consistent(ioa_cfg->pdev,
7243 sizeof(u32) * IPR_NUM_CMD_BLKS,
7244 &ioa_cfg->host_rrq_dma);
7246 if (!ioa_cfg->host_rrq)
7247 goto out_ipr_free_cmd_blocks;
7249 ioa_cfg->cfg_table = pci_alloc_consistent(ioa_cfg->pdev,
7250 sizeof(struct ipr_config_table),
7251 &ioa_cfg->cfg_table_dma);
7253 if (!ioa_cfg->cfg_table)
7254 goto out_free_host_rrq;
7256 for (i = 0; i < IPR_NUM_HCAMS; i++) {
7257 ioa_cfg->hostrcb[i] = pci_alloc_consistent(ioa_cfg->pdev,
7258 sizeof(struct ipr_hostrcb),
7259 &ioa_cfg->hostrcb_dma[i]);
7261 if (!ioa_cfg->hostrcb[i])
7262 goto out_free_hostrcb_dma;
7264 ioa_cfg->hostrcb[i]->hostrcb_dma =
7265 ioa_cfg->hostrcb_dma[i] + offsetof(struct ipr_hostrcb, hcam);
7266 ioa_cfg->hostrcb[i]->ioa_cfg = ioa_cfg;
7267 list_add_tail(&ioa_cfg->hostrcb[i]->queue, &ioa_cfg->hostrcb_free_q);
7270 ioa_cfg->trace = kzalloc(sizeof(struct ipr_trace_entry) *
7271 IPR_NUM_TRACE_ENTRIES, GFP_KERNEL);
7273 if (!ioa_cfg->trace)
7274 goto out_free_hostrcb_dma;
7281 out_free_hostrcb_dma:
7283 pci_free_consistent(pdev, sizeof(struct ipr_hostrcb),
7284 ioa_cfg->hostrcb[i],
7285 ioa_cfg->hostrcb_dma[i]);
7287 pci_free_consistent(pdev, sizeof(struct ipr_config_table),
7288 ioa_cfg->cfg_table, ioa_cfg->cfg_table_dma);
7290 pci_free_consistent(pdev, sizeof(u32) * IPR_NUM_CMD_BLKS,
7291 ioa_cfg->host_rrq, ioa_cfg->host_rrq_dma);
7292 out_ipr_free_cmd_blocks:
7293 ipr_free_cmd_blks(ioa_cfg);
7295 pci_free_consistent(pdev, sizeof(struct ipr_misc_cbs),
7296 ioa_cfg->vpd_cbs, ioa_cfg->vpd_cbs_dma);
7297 out_free_res_entries:
7298 kfree(ioa_cfg->res_entries);
7303 * ipr_initialize_bus_attr - Initialize SCSI bus attributes to default values
7304 * @ioa_cfg: ioa config struct
7309 static void __devinit ipr_initialize_bus_attr(struct ipr_ioa_cfg *ioa_cfg)
7313 for (i = 0; i < IPR_MAX_NUM_BUSES; i++) {
7314 ioa_cfg->bus_attr[i].bus = i;
7315 ioa_cfg->bus_attr[i].qas_enabled = 0;
7316 ioa_cfg->bus_attr[i].bus_width = IPR_DEFAULT_BUS_WIDTH;
7317 if (ipr_max_speed < ARRAY_SIZE(ipr_max_bus_speeds))
7318 ioa_cfg->bus_attr[i].max_xfer_rate = ipr_max_bus_speeds[ipr_max_speed];
7320 ioa_cfg->bus_attr[i].max_xfer_rate = IPR_U160_SCSI_RATE;
7325 * ipr_init_ioa_cfg - Initialize IOA config struct
7326 * @ioa_cfg: ioa config struct
7327 * @host: scsi host struct
7328 * @pdev: PCI dev struct
7333 static void __devinit ipr_init_ioa_cfg(struct ipr_ioa_cfg *ioa_cfg,
7334 struct Scsi_Host *host, struct pci_dev *pdev)
7336 const struct ipr_interrupt_offsets *p;
7337 struct ipr_interrupts *t;
7340 ioa_cfg->host = host;
7341 ioa_cfg->pdev = pdev;
7342 ioa_cfg->log_level = ipr_log_level;
7343 ioa_cfg->doorbell = IPR_DOORBELL;
7344 sprintf(ioa_cfg->eye_catcher, IPR_EYECATCHER);
7345 sprintf(ioa_cfg->trace_start, IPR_TRACE_START_LABEL);
7346 sprintf(ioa_cfg->ipr_free_label, IPR_FREEQ_LABEL);
7347 sprintf(ioa_cfg->ipr_pending_label, IPR_PENDQ_LABEL);
7348 sprintf(ioa_cfg->cfg_table_start, IPR_CFG_TBL_START);
7349 sprintf(ioa_cfg->resource_table_label, IPR_RES_TABLE_LABEL);
7350 sprintf(ioa_cfg->ipr_hcam_label, IPR_HCAM_LABEL);
7351 sprintf(ioa_cfg->ipr_cmd_label, IPR_CMD_LABEL);
7353 INIT_LIST_HEAD(&ioa_cfg->free_q);
7354 INIT_LIST_HEAD(&ioa_cfg->pending_q);
7355 INIT_LIST_HEAD(&ioa_cfg->hostrcb_free_q);
7356 INIT_LIST_HEAD(&ioa_cfg->hostrcb_pending_q);
7357 INIT_LIST_HEAD(&ioa_cfg->free_res_q);
7358 INIT_LIST_HEAD(&ioa_cfg->used_res_q);
7359 INIT_WORK(&ioa_cfg->work_q, ipr_worker_thread);
7360 init_waitqueue_head(&ioa_cfg->reset_wait_q);
7361 ioa_cfg->sdt_state = INACTIVE;
7362 if (ipr_enable_cache)
7363 ioa_cfg->cache_state = CACHE_ENABLED;
7365 ioa_cfg->cache_state = CACHE_DISABLED;
7367 ipr_initialize_bus_attr(ioa_cfg);
7369 host->max_id = IPR_MAX_NUM_TARGETS_PER_BUS;
7370 host->max_lun = IPR_MAX_NUM_LUNS_PER_TARGET;
7371 host->max_channel = IPR_MAX_BUS_TO_SCAN;
7372 host->unique_id = host->host_no;
7373 host->max_cmd_len = IPR_MAX_CDB_LEN;
7374 pci_set_drvdata(pdev, ioa_cfg);
7376 p = &ioa_cfg->chip_cfg->regs;
7378 base = ioa_cfg->hdw_dma_regs;
7380 t->set_interrupt_mask_reg = base + p->set_interrupt_mask_reg;
7381 t->clr_interrupt_mask_reg = base + p->clr_interrupt_mask_reg;
7382 t->sense_interrupt_mask_reg = base + p->sense_interrupt_mask_reg;
7383 t->clr_interrupt_reg = base + p->clr_interrupt_reg;
7384 t->sense_interrupt_reg = base + p->sense_interrupt_reg;
7385 t->ioarrin_reg = base + p->ioarrin_reg;
7386 t->sense_uproc_interrupt_reg = base + p->sense_uproc_interrupt_reg;
7387 t->set_uproc_interrupt_reg = base + p->set_uproc_interrupt_reg;
7388 t->clr_uproc_interrupt_reg = base + p->clr_uproc_interrupt_reg;
7392 * ipr_get_chip_cfg - Find adapter chip configuration
7393 * @dev_id: PCI device id struct
7396 * ptr to chip config on success / NULL on failure
7398 static const struct ipr_chip_cfg_t * __devinit
7399 ipr_get_chip_cfg(const struct pci_device_id *dev_id)
7403 for (i = 0; i < ARRAY_SIZE(ipr_chip); i++)
7404 if (ipr_chip[i].vendor == dev_id->vendor &&
7405 ipr_chip[i].device == dev_id->device)
7406 return ipr_chip[i].cfg;
7411 * ipr_probe_ioa - Allocates memory and does first stage of initialization
7412 * @pdev: PCI device struct
7413 * @dev_id: PCI device id struct
7416 * 0 on success / non-zero on failure
7418 static int __devinit ipr_probe_ioa(struct pci_dev *pdev,
7419 const struct pci_device_id *dev_id)
7421 struct ipr_ioa_cfg *ioa_cfg;
7422 struct Scsi_Host *host;
7423 unsigned long ipr_regs_pci;
7424 void __iomem *ipr_regs;
7425 int rc = PCIBIOS_SUCCESSFUL;
7426 volatile u32 mask, uproc, interrupts;
7430 if ((rc = pci_enable_device(pdev))) {
7431 dev_err(&pdev->dev, "Cannot enable adapter\n");
7435 dev_info(&pdev->dev, "Found IOA with IRQ: %d\n", pdev->irq);
7437 host = scsi_host_alloc(&driver_template, sizeof(*ioa_cfg));
7440 dev_err(&pdev->dev, "call to scsi_host_alloc failed!\n");
7445 ioa_cfg = (struct ipr_ioa_cfg *)host->hostdata;
7446 memset(ioa_cfg, 0, sizeof(struct ipr_ioa_cfg));
7447 ata_host_init(&ioa_cfg->ata_host, &pdev->dev,
7448 sata_port_info.flags, &ipr_sata_ops);
7450 ioa_cfg->chip_cfg = ipr_get_chip_cfg(dev_id);
7452 if (!ioa_cfg->chip_cfg) {
7453 dev_err(&pdev->dev, "Unknown adapter chipset 0x%04X 0x%04X\n",
7454 dev_id->vendor, dev_id->device);
7455 goto out_scsi_host_put;
7458 if (ipr_transop_timeout)
7459 ioa_cfg->transop_timeout = ipr_transop_timeout;
7460 else if (dev_id->driver_data & IPR_USE_LONG_TRANSOP_TIMEOUT)
7461 ioa_cfg->transop_timeout = IPR_LONG_OPERATIONAL_TIMEOUT;
7463 ioa_cfg->transop_timeout = IPR_OPERATIONAL_TIMEOUT;
7465 ioa_cfg->revid = pdev->revision;
7467 ipr_regs_pci = pci_resource_start(pdev, 0);
7469 rc = pci_request_regions(pdev, IPR_NAME);
7472 "Couldn't register memory range of registers\n");
7473 goto out_scsi_host_put;
7476 ipr_regs = pci_ioremap_bar(pdev, 0);
7480 "Couldn't map memory range of registers\n");
7482 goto out_release_regions;
7485 ioa_cfg->hdw_dma_regs = ipr_regs;
7486 ioa_cfg->hdw_dma_regs_pci = ipr_regs_pci;
7487 ioa_cfg->ioa_mailbox = ioa_cfg->chip_cfg->mailbox + ipr_regs;
7489 ipr_init_ioa_cfg(ioa_cfg, host, pdev);
7491 pci_set_master(pdev);
7493 rc = pci_set_dma_mask(pdev, DMA_32BIT_MASK);
7495 dev_err(&pdev->dev, "Failed to set PCI DMA mask\n");
7499 rc = pci_write_config_byte(pdev, PCI_CACHE_LINE_SIZE,
7500 ioa_cfg->chip_cfg->cache_line_size);
7502 if (rc != PCIBIOS_SUCCESSFUL) {
7503 dev_err(&pdev->dev, "Write of cache line size failed\n");
7508 /* Save away PCI config space for use following IOA reset */
7509 rc = pci_save_state(pdev);
7511 if (rc != PCIBIOS_SUCCESSFUL) {
7512 dev_err(&pdev->dev, "Failed to save PCI config space\n");
7517 if ((rc = ipr_save_pcix_cmd_reg(ioa_cfg)))
7520 if ((rc = ipr_set_pcix_cmd_reg(ioa_cfg)))
7523 rc = ipr_alloc_mem(ioa_cfg);
7526 "Couldn't allocate enough memory for device driver!\n");
7531 * If HRRQ updated interrupt is not masked, or reset alert is set,
7532 * the card is in an unknown state and needs a hard reset
7534 mask = readl(ioa_cfg->regs.sense_interrupt_mask_reg);
7535 interrupts = readl(ioa_cfg->regs.sense_interrupt_reg);
7536 uproc = readl(ioa_cfg->regs.sense_uproc_interrupt_reg);
7537 if ((mask & IPR_PCII_HRRQ_UPDATED) == 0 || (uproc & IPR_UPROCI_RESET_ALERT))
7538 ioa_cfg->needs_hard_reset = 1;
7539 if (interrupts & IPR_PCII_ERROR_INTERRUPTS)
7540 ioa_cfg->needs_hard_reset = 1;
7541 if (interrupts & IPR_PCII_IOA_UNIT_CHECKED)
7542 ioa_cfg->ioa_unit_checked = 1;
7544 ipr_mask_and_clear_interrupts(ioa_cfg, ~IPR_PCII_IOA_TRANS_TO_OPER);
7545 rc = request_irq(pdev->irq, ipr_isr, IRQF_SHARED, IPR_NAME, ioa_cfg);
7548 dev_err(&pdev->dev, "Couldn't register IRQ %d! rc=%d\n",
7553 if ((dev_id->driver_data & IPR_USE_PCI_WARM_RESET) ||
7554 (dev_id->device == PCI_DEVICE_ID_IBM_OBSIDIAN_E && !ioa_cfg->revid)) {
7555 ioa_cfg->needs_warm_reset = 1;
7556 ioa_cfg->reset = ipr_reset_slot_reset;
7558 ioa_cfg->reset = ipr_reset_start_bist;
7560 spin_lock(&ipr_driver_lock);
7561 list_add_tail(&ioa_cfg->queue, &ipr_ioa_head);
7562 spin_unlock(&ipr_driver_lock);
7569 ipr_free_mem(ioa_cfg);
7572 out_release_regions:
7573 pci_release_regions(pdev);
7575 scsi_host_put(host);
7577 pci_disable_device(pdev);
7582 * ipr_scan_vsets - Scans for VSET devices
7583 * @ioa_cfg: ioa config struct
7585 * Description: Since the VSET resources do not follow SAM in that we can have
7586 * sparse LUNs with no LUN 0, we have to scan for these ourselves.
7591 static void ipr_scan_vsets(struct ipr_ioa_cfg *ioa_cfg)
7595 for (target = 0; target < IPR_MAX_NUM_TARGETS_PER_BUS; target++)
7596 for (lun = 0; lun < IPR_MAX_NUM_VSET_LUNS_PER_TARGET; lun++ )
7597 scsi_add_device(ioa_cfg->host, IPR_VSET_BUS, target, lun);
7601 * ipr_initiate_ioa_bringdown - Bring down an adapter
7602 * @ioa_cfg: ioa config struct
7603 * @shutdown_type: shutdown type
7605 * Description: This function will initiate bringing down the adapter.
7606 * This consists of issuing an IOA shutdown to the adapter
7607 * to flush the cache, and running BIST.
7608 * If the caller needs to wait on the completion of the reset,
7609 * the caller must sleep on the reset_wait_q.
7614 static void ipr_initiate_ioa_bringdown(struct ipr_ioa_cfg *ioa_cfg,
7615 enum ipr_shutdown_type shutdown_type)
7618 if (ioa_cfg->sdt_state == WAIT_FOR_DUMP)
7619 ioa_cfg->sdt_state = ABORT_DUMP;
7620 ioa_cfg->reset_retries = 0;
7621 ioa_cfg->in_ioa_bringdown = 1;
7622 ipr_initiate_ioa_reset(ioa_cfg, shutdown_type);
7627 * __ipr_remove - Remove a single adapter
7628 * @pdev: pci device struct
7630 * Adapter hot plug remove entry point.
7635 static void __ipr_remove(struct pci_dev *pdev)
7637 unsigned long host_lock_flags = 0;
7638 struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev);
7641 spin_lock_irqsave(ioa_cfg->host->host_lock, host_lock_flags);
7642 while(ioa_cfg->in_reset_reload) {
7643 spin_unlock_irqrestore(ioa_cfg->host->host_lock, host_lock_flags);
7644 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
7645 spin_lock_irqsave(ioa_cfg->host->host_lock, host_lock_flags);
7648 ipr_initiate_ioa_bringdown(ioa_cfg, IPR_SHUTDOWN_NORMAL);
7650 spin_unlock_irqrestore(ioa_cfg->host->host_lock, host_lock_flags);
7651 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
7652 flush_scheduled_work();
7653 spin_lock_irqsave(ioa_cfg->host->host_lock, host_lock_flags);
7655 spin_lock(&ipr_driver_lock);
7656 list_del(&ioa_cfg->queue);
7657 spin_unlock(&ipr_driver_lock);
7659 if (ioa_cfg->sdt_state == ABORT_DUMP)
7660 ioa_cfg->sdt_state = WAIT_FOR_DUMP;
7661 spin_unlock_irqrestore(ioa_cfg->host->host_lock, host_lock_flags);
7663 ipr_free_all_resources(ioa_cfg);
7669 * ipr_remove - IOA hot plug remove entry point
7670 * @pdev: pci device struct
7672 * Adapter hot plug remove entry point.
7677 static void ipr_remove(struct pci_dev *pdev)
7679 struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev);
7683 ipr_remove_trace_file(&ioa_cfg->host->shost_dev.kobj,
7685 ipr_remove_dump_file(&ioa_cfg->host->shost_dev.kobj,
7687 scsi_remove_host(ioa_cfg->host);
7695 * ipr_probe - Adapter hot plug add entry point
7698 * 0 on success / non-zero on failure
7700 static int __devinit ipr_probe(struct pci_dev *pdev,
7701 const struct pci_device_id *dev_id)
7703 struct ipr_ioa_cfg *ioa_cfg;
7706 rc = ipr_probe_ioa(pdev, dev_id);
7711 ioa_cfg = pci_get_drvdata(pdev);
7712 rc = ipr_probe_ioa_part2(ioa_cfg);
7719 rc = scsi_add_host(ioa_cfg->host, &pdev->dev);
7726 rc = ipr_create_trace_file(&ioa_cfg->host->shost_dev.kobj,
7730 scsi_remove_host(ioa_cfg->host);
7735 rc = ipr_create_dump_file(&ioa_cfg->host->shost_dev.kobj,
7739 ipr_remove_trace_file(&ioa_cfg->host->shost_dev.kobj,
7741 scsi_remove_host(ioa_cfg->host);
7746 scsi_scan_host(ioa_cfg->host);
7747 ipr_scan_vsets(ioa_cfg);
7748 scsi_add_device(ioa_cfg->host, IPR_IOA_BUS, IPR_IOA_TARGET, IPR_IOA_LUN);
7749 ioa_cfg->allow_ml_add_del = 1;
7750 ioa_cfg->host->max_channel = IPR_VSET_BUS;
7751 schedule_work(&ioa_cfg->work_q);
7756 * ipr_shutdown - Shutdown handler.
7757 * @pdev: pci device struct
7759 * This function is invoked upon system shutdown/reboot. It will issue
7760 * an adapter shutdown to the adapter to flush the write cache.
7765 static void ipr_shutdown(struct pci_dev *pdev)
7767 struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev);
7768 unsigned long lock_flags = 0;
7770 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
7771 while(ioa_cfg->in_reset_reload) {
7772 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
7773 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
7774 spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
7777 ipr_initiate_ioa_bringdown(ioa_cfg, IPR_SHUTDOWN_NORMAL);
7778 spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
7779 wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload);
7782 static struct pci_device_id ipr_pci_table[] __devinitdata = {
7783 { PCI_VENDOR_ID_MYLEX, PCI_DEVICE_ID_IBM_GEMSTONE,
7784 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_5702, 0, 0, 0 },
7785 { PCI_VENDOR_ID_MYLEX, PCI_DEVICE_ID_IBM_GEMSTONE,
7786 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_5703, 0, 0, 0 },
7787 { PCI_VENDOR_ID_MYLEX, PCI_DEVICE_ID_IBM_GEMSTONE,
7788 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_573D, 0, 0, 0 },
7789 { PCI_VENDOR_ID_MYLEX, PCI_DEVICE_ID_IBM_GEMSTONE,
7790 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_573E, 0, 0, 0 },
7791 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CITRINE,
7792 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_571B, 0, 0, 0 },
7793 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CITRINE,
7794 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572E, 0, 0, 0 },
7795 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CITRINE,
7796 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_571A, 0, 0, 0 },
7797 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CITRINE,
7798 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_575B, 0, 0,
7799 IPR_USE_LONG_TRANSOP_TIMEOUT },
7800 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_OBSIDIAN,
7801 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572A, 0, 0, 0 },
7802 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_OBSIDIAN,
7803 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572B, 0, 0,
7804 IPR_USE_LONG_TRANSOP_TIMEOUT },
7805 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_OBSIDIAN,
7806 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_575C, 0, 0,
7807 IPR_USE_LONG_TRANSOP_TIMEOUT },
7808 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN,
7809 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572A, 0, 0, 0 },
7810 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN,
7811 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572B, 0, 0,
7812 IPR_USE_LONG_TRANSOP_TIMEOUT},
7813 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN,
7814 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_575C, 0, 0,
7815 IPR_USE_LONG_TRANSOP_TIMEOUT },
7816 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN_E,
7817 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_574E, 0, 0,
7818 IPR_USE_LONG_TRANSOP_TIMEOUT },
7819 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN_E,
7820 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_575D, 0, 0,
7821 IPR_USE_LONG_TRANSOP_TIMEOUT },
7822 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN_E,
7823 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57B3, 0, 0, 0 },
7824 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN_E,
7825 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57B7, 0, 0,
7826 IPR_USE_LONG_TRANSOP_TIMEOUT | IPR_USE_PCI_WARM_RESET },
7827 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_SNIPE,
7828 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_2780, 0, 0, 0 },
7829 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_SCAMP,
7830 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_571E, 0, 0, 0 },
7831 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_SCAMP,
7832 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_571F, 0, 0,
7833 IPR_USE_LONG_TRANSOP_TIMEOUT },
7834 { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_SCAMP,
7835 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572F, 0, 0,
7836 IPR_USE_LONG_TRANSOP_TIMEOUT },
7837 { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_SCAMP_E,
7838 PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_574D, 0, 0,
7839 IPR_USE_LONG_TRANSOP_TIMEOUT },
7842 MODULE_DEVICE_TABLE(pci, ipr_pci_table);
7844 static struct pci_error_handlers ipr_err_handler = {
7845 .error_detected = ipr_pci_error_detected,
7846 .slot_reset = ipr_pci_slot_reset,
7849 static struct pci_driver ipr_driver = {
7851 .id_table = ipr_pci_table,
7853 .remove = ipr_remove,
7854 .shutdown = ipr_shutdown,
7855 .err_handler = &ipr_err_handler,
7859 * ipr_init - Module entry point
7862 * 0 on success / negative value on failure
7864 static int __init ipr_init(void)
7866 ipr_info("IBM Power RAID SCSI Device Driver version: %s %s\n",
7867 IPR_DRIVER_VERSION, IPR_DRIVER_DATE);
7869 return pci_register_driver(&ipr_driver);
7873 * ipr_exit - Module unload
7875 * Module unload entry point.
7880 static void __exit ipr_exit(void)
7882 pci_unregister_driver(&ipr_driver);
7885 module_init(ipr_init);
7886 module_exit(ipr_exit);