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1da177e4 LT |
1 | /* |
2 | * ipr.c -- driver for IBM Power Linux RAID adapters | |
3 | * | |
4 | * Written By: Brian King <brking@us.ibm.com>, IBM Corporation | |
5 | * | |
6 | * Copyright (C) 2003, 2004 IBM Corporation | |
7 | * | |
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. | |
12 | * | |
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. | |
17 | * | |
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 | |
21 | * | |
22 | */ | |
23 | ||
24 | /* | |
25 | * Notes: | |
26 | * | |
27 | * This driver is used to control the following SCSI adapters: | |
28 | * | |
29 | * IBM iSeries: 5702, 5703, 2780, 5709, 570A, 570B | |
30 | * | |
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 | |
35 | * | |
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 | |
43 | * - Hot spare | |
44 | * - Background Parity Checking | |
45 | * - Background Data Scrubbing | |
46 | * - Ability to increase the capacity of an existing RAID 5 disk array | |
47 | * by adding disks | |
48 | * | |
49 | * Driver Features: | |
50 | * - Tagged command queuing | |
51 | * - Adapter microcode download | |
52 | * - PCI hot plug | |
53 | * - SCSI device hot plug | |
54 | * | |
55 | */ | |
56 | ||
1da177e4 LT |
57 | #include <linux/fs.h> |
58 | #include <linux/init.h> | |
59 | #include <linux/types.h> | |
60 | #include <linux/errno.h> | |
61 | #include <linux/kernel.h> | |
5a0e3ad6 | 62 | #include <linux/slab.h> |
1da177e4 LT |
63 | #include <linux/ioport.h> |
64 | #include <linux/delay.h> | |
65 | #include <linux/pci.h> | |
66 | #include <linux/wait.h> | |
67 | #include <linux/spinlock.h> | |
68 | #include <linux/sched.h> | |
69 | #include <linux/interrupt.h> | |
70 | #include <linux/blkdev.h> | |
71 | #include <linux/firmware.h> | |
72 | #include <linux/module.h> | |
73 | #include <linux/moduleparam.h> | |
35a39691 | 74 | #include <linux/libata.h> |
0ce3a7e5 | 75 | #include <linux/hdreg.h> |
f72919ec | 76 | #include <linux/reboot.h> |
3e7ebdfa | 77 | #include <linux/stringify.h> |
1da177e4 LT |
78 | #include <asm/io.h> |
79 | #include <asm/irq.h> | |
80 | #include <asm/processor.h> | |
81 | #include <scsi/scsi.h> | |
82 | #include <scsi/scsi_host.h> | |
83 | #include <scsi/scsi_tcq.h> | |
84 | #include <scsi/scsi_eh.h> | |
85 | #include <scsi/scsi_cmnd.h> | |
1da177e4 LT |
86 | #include "ipr.h" |
87 | ||
88 | /* | |
89 | * Global Data | |
90 | */ | |
b7d68ca3 | 91 | static LIST_HEAD(ipr_ioa_head); |
1da177e4 LT |
92 | static unsigned int ipr_log_level = IPR_DEFAULT_LOG_LEVEL; |
93 | static unsigned int ipr_max_speed = 1; | |
94 | static int ipr_testmode = 0; | |
95 | static unsigned int ipr_fastfail = 0; | |
5469cb5b | 96 | static unsigned int ipr_transop_timeout = 0; |
d3c74871 | 97 | static unsigned int ipr_debug = 0; |
3e7ebdfa | 98 | static unsigned int ipr_max_devs = IPR_DEFAULT_SIS64_DEVS; |
ac09c349 | 99 | static unsigned int ipr_dual_ioa_raid = 1; |
1da177e4 LT |
100 | static DEFINE_SPINLOCK(ipr_driver_lock); |
101 | ||
102 | /* This table describes the differences between DMA controller chips */ | |
103 | static const struct ipr_chip_cfg_t ipr_chip_cfg[] = { | |
60e7486b | 104 | { /* Gemstone, Citrine, Obsidian, and Obsidian-E */ |
1da177e4 LT |
105 | .mailbox = 0x0042C, |
106 | .cache_line_size = 0x20, | |
107 | { | |
108 | .set_interrupt_mask_reg = 0x0022C, | |
109 | .clr_interrupt_mask_reg = 0x00230, | |
214777ba | 110 | .clr_interrupt_mask_reg32 = 0x00230, |
1da177e4 | 111 | .sense_interrupt_mask_reg = 0x0022C, |
214777ba | 112 | .sense_interrupt_mask_reg32 = 0x0022C, |
1da177e4 | 113 | .clr_interrupt_reg = 0x00228, |
214777ba | 114 | .clr_interrupt_reg32 = 0x00228, |
1da177e4 | 115 | .sense_interrupt_reg = 0x00224, |
214777ba | 116 | .sense_interrupt_reg32 = 0x00224, |
1da177e4 LT |
117 | .ioarrin_reg = 0x00404, |
118 | .sense_uproc_interrupt_reg = 0x00214, | |
214777ba | 119 | .sense_uproc_interrupt_reg32 = 0x00214, |
1da177e4 | 120 | .set_uproc_interrupt_reg = 0x00214, |
214777ba WB |
121 | .set_uproc_interrupt_reg32 = 0x00214, |
122 | .clr_uproc_interrupt_reg = 0x00218, | |
123 | .clr_uproc_interrupt_reg32 = 0x00218 | |
1da177e4 LT |
124 | } |
125 | }, | |
126 | { /* Snipe and Scamp */ | |
127 | .mailbox = 0x0052C, | |
128 | .cache_line_size = 0x20, | |
129 | { | |
130 | .set_interrupt_mask_reg = 0x00288, | |
131 | .clr_interrupt_mask_reg = 0x0028C, | |
214777ba | 132 | .clr_interrupt_mask_reg32 = 0x0028C, |
1da177e4 | 133 | .sense_interrupt_mask_reg = 0x00288, |
214777ba | 134 | .sense_interrupt_mask_reg32 = 0x00288, |
1da177e4 | 135 | .clr_interrupt_reg = 0x00284, |
214777ba | 136 | .clr_interrupt_reg32 = 0x00284, |
1da177e4 | 137 | .sense_interrupt_reg = 0x00280, |
214777ba | 138 | .sense_interrupt_reg32 = 0x00280, |
1da177e4 LT |
139 | .ioarrin_reg = 0x00504, |
140 | .sense_uproc_interrupt_reg = 0x00290, | |
214777ba | 141 | .sense_uproc_interrupt_reg32 = 0x00290, |
1da177e4 | 142 | .set_uproc_interrupt_reg = 0x00290, |
214777ba WB |
143 | .set_uproc_interrupt_reg32 = 0x00290, |
144 | .clr_uproc_interrupt_reg = 0x00294, | |
145 | .clr_uproc_interrupt_reg32 = 0x00294 | |
1da177e4 LT |
146 | } |
147 | }, | |
a74c1639 WB |
148 | { /* CRoC */ |
149 | .mailbox = 0x00040, | |
150 | .cache_line_size = 0x20, | |
151 | { | |
152 | .set_interrupt_mask_reg = 0x00010, | |
153 | .clr_interrupt_mask_reg = 0x00018, | |
214777ba | 154 | .clr_interrupt_mask_reg32 = 0x0001C, |
a74c1639 | 155 | .sense_interrupt_mask_reg = 0x00010, |
214777ba | 156 | .sense_interrupt_mask_reg32 = 0x00014, |
a74c1639 | 157 | .clr_interrupt_reg = 0x00008, |
214777ba | 158 | .clr_interrupt_reg32 = 0x0000C, |
a74c1639 | 159 | .sense_interrupt_reg = 0x00000, |
214777ba | 160 | .sense_interrupt_reg32 = 0x00004, |
a74c1639 WB |
161 | .ioarrin_reg = 0x00070, |
162 | .sense_uproc_interrupt_reg = 0x00020, | |
214777ba | 163 | .sense_uproc_interrupt_reg32 = 0x00024, |
a74c1639 | 164 | .set_uproc_interrupt_reg = 0x00020, |
214777ba | 165 | .set_uproc_interrupt_reg32 = 0x00024, |
dcbad00e | 166 | .clr_uproc_interrupt_reg = 0x00028, |
214777ba WB |
167 | .clr_uproc_interrupt_reg32 = 0x0002C, |
168 | .init_feedback_reg = 0x0005C, | |
dcbad00e | 169 | .dump_addr_reg = 0x00064, |
8701f185 WB |
170 | .dump_data_reg = 0x00068, |
171 | .endian_swap_reg = 0x00084 | |
a74c1639 WB |
172 | } |
173 | }, | |
1da177e4 LT |
174 | }; |
175 | ||
176 | static const struct ipr_chip_t ipr_chip[] = { | |
cb237ef7 WB |
177 | { PCI_VENDOR_ID_MYLEX, PCI_DEVICE_ID_IBM_GEMSTONE, IPR_USE_LSI, IPR_SIS32, IPR_PCI_CFG, &ipr_chip_cfg[0] }, |
178 | { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CITRINE, IPR_USE_LSI, IPR_SIS32, IPR_PCI_CFG, &ipr_chip_cfg[0] }, | |
179 | { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_OBSIDIAN, IPR_USE_LSI, IPR_SIS32, IPR_PCI_CFG, &ipr_chip_cfg[0] }, | |
180 | { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN, IPR_USE_LSI, IPR_SIS32, IPR_PCI_CFG, &ipr_chip_cfg[0] }, | |
181 | { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN_E, IPR_USE_MSI, IPR_SIS32, IPR_PCI_CFG, &ipr_chip_cfg[0] }, | |
182 | { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_SNIPE, IPR_USE_LSI, IPR_SIS32, IPR_PCI_CFG, &ipr_chip_cfg[1] }, | |
183 | { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_SCAMP, IPR_USE_LSI, IPR_SIS32, IPR_PCI_CFG, &ipr_chip_cfg[1] }, | |
184 | { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_FPGA_E2, IPR_USE_MSI, IPR_SIS64, IPR_MMIO, &ipr_chip_cfg[2] }, | |
185 | { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_ASIC_E2, IPR_USE_MSI, IPR_SIS64, IPR_MMIO, &ipr_chip_cfg[2] } | |
1da177e4 LT |
186 | }; |
187 | ||
188 | static int ipr_max_bus_speeds [] = { | |
189 | IPR_80MBs_SCSI_RATE, IPR_U160_SCSI_RATE, IPR_U320_SCSI_RATE | |
190 | }; | |
191 | ||
192 | MODULE_AUTHOR("Brian King <brking@us.ibm.com>"); | |
193 | MODULE_DESCRIPTION("IBM Power RAID SCSI Adapter Driver"); | |
194 | module_param_named(max_speed, ipr_max_speed, uint, 0); | |
195 | MODULE_PARM_DESC(max_speed, "Maximum bus speed (0-2). Default: 1=U160. Speeds: 0=80 MB/s, 1=U160, 2=U320"); | |
196 | module_param_named(log_level, ipr_log_level, uint, 0); | |
197 | MODULE_PARM_DESC(log_level, "Set to 0 - 4 for increasing verbosity of device driver"); | |
198 | module_param_named(testmode, ipr_testmode, int, 0); | |
199 | MODULE_PARM_DESC(testmode, "DANGEROUS!!! Allows unsupported configurations"); | |
2cf22be0 | 200 | module_param_named(fastfail, ipr_fastfail, int, S_IRUGO | S_IWUSR); |
1da177e4 LT |
201 | MODULE_PARM_DESC(fastfail, "Reduce timeouts and retries"); |
202 | module_param_named(transop_timeout, ipr_transop_timeout, int, 0); | |
203 | MODULE_PARM_DESC(transop_timeout, "Time in seconds to wait for adapter to come operational (default: 300)"); | |
2cf22be0 | 204 | module_param_named(debug, ipr_debug, int, S_IRUGO | S_IWUSR); |
d3c74871 | 205 | MODULE_PARM_DESC(debug, "Enable device driver debugging logging. Set to 1 to enable. (default: 0)"); |
ac09c349 BK |
206 | module_param_named(dual_ioa_raid, ipr_dual_ioa_raid, int, 0); |
207 | MODULE_PARM_DESC(dual_ioa_raid, "Enable dual adapter RAID support. Set to 1 to enable. (default: 1)"); | |
3e7ebdfa WB |
208 | module_param_named(max_devs, ipr_max_devs, int, 0); |
209 | MODULE_PARM_DESC(max_devs, "Specify the maximum number of physical devices. " | |
210 | "[Default=" __stringify(IPR_DEFAULT_SIS64_DEVS) "]"); | |
1da177e4 LT |
211 | MODULE_LICENSE("GPL"); |
212 | MODULE_VERSION(IPR_DRIVER_VERSION); | |
213 | ||
1da177e4 LT |
214 | /* A constant array of IOASCs/URCs/Error Messages */ |
215 | static const | |
216 | struct ipr_error_table_t ipr_error_table[] = { | |
933916f3 | 217 | {0x00000000, 1, IPR_DEFAULT_LOG_LEVEL, |
1da177e4 LT |
218 | "8155: An unknown error was received"}, |
219 | {0x00330000, 0, 0, | |
220 | "Soft underlength error"}, | |
221 | {0x005A0000, 0, 0, | |
222 | "Command to be cancelled not found"}, | |
223 | {0x00808000, 0, 0, | |
224 | "Qualified success"}, | |
933916f3 | 225 | {0x01080000, 1, IPR_DEFAULT_LOG_LEVEL, |
1da177e4 | 226 | "FFFE: Soft device bus error recovered by the IOA"}, |
933916f3 | 227 | {0x01088100, 0, IPR_DEFAULT_LOG_LEVEL, |
896bbd21 | 228 | "4101: Soft device bus fabric error"}, |
5aa3a333 WB |
229 | {0x01100100, 0, IPR_DEFAULT_LOG_LEVEL, |
230 | "FFFC: Logical block guard error recovered by the device"}, | |
231 | {0x01100300, 0, IPR_DEFAULT_LOG_LEVEL, | |
232 | "FFFC: Logical block reference tag error recovered by the device"}, | |
233 | {0x01108300, 0, IPR_DEFAULT_LOG_LEVEL, | |
234 | "4171: Recovered scatter list tag / sequence number error"}, | |
235 | {0x01109000, 0, IPR_DEFAULT_LOG_LEVEL, | |
236 | "FF3D: Recovered logical block CRC error on IOA to Host transfer"}, | |
237 | {0x01109200, 0, IPR_DEFAULT_LOG_LEVEL, | |
238 | "4171: Recovered logical block sequence number error on IOA to Host transfer"}, | |
239 | {0x0110A000, 0, IPR_DEFAULT_LOG_LEVEL, | |
240 | "FFFD: Recovered logical block reference tag error detected by the IOA"}, | |
241 | {0x0110A100, 0, IPR_DEFAULT_LOG_LEVEL, | |
242 | "FFFD: Logical block guard error recovered by the IOA"}, | |
933916f3 | 243 | {0x01170600, 0, IPR_DEFAULT_LOG_LEVEL, |
1da177e4 | 244 | "FFF9: Device sector reassign successful"}, |
933916f3 | 245 | {0x01170900, 0, IPR_DEFAULT_LOG_LEVEL, |
1da177e4 | 246 | "FFF7: Media error recovered by device rewrite procedures"}, |
933916f3 | 247 | {0x01180200, 0, IPR_DEFAULT_LOG_LEVEL, |
1da177e4 | 248 | "7001: IOA sector reassignment successful"}, |
933916f3 | 249 | {0x01180500, 0, IPR_DEFAULT_LOG_LEVEL, |
1da177e4 | 250 | "FFF9: Soft media error. Sector reassignment recommended"}, |
933916f3 | 251 | {0x01180600, 0, IPR_DEFAULT_LOG_LEVEL, |
1da177e4 | 252 | "FFF7: Media error recovered by IOA rewrite procedures"}, |
933916f3 | 253 | {0x01418000, 0, IPR_DEFAULT_LOG_LEVEL, |
1da177e4 | 254 | "FF3D: Soft PCI bus error recovered by the IOA"}, |
933916f3 | 255 | {0x01440000, 1, IPR_DEFAULT_LOG_LEVEL, |
1da177e4 | 256 | "FFF6: Device hardware error recovered by the IOA"}, |
933916f3 | 257 | {0x01448100, 0, IPR_DEFAULT_LOG_LEVEL, |
1da177e4 | 258 | "FFF6: Device hardware error recovered by the device"}, |
933916f3 | 259 | {0x01448200, 1, IPR_DEFAULT_LOG_LEVEL, |
1da177e4 | 260 | "FF3D: Soft IOA error recovered by the IOA"}, |
933916f3 | 261 | {0x01448300, 0, IPR_DEFAULT_LOG_LEVEL, |
1da177e4 | 262 | "FFFA: Undefined device response recovered by the IOA"}, |
933916f3 | 263 | {0x014A0000, 1, IPR_DEFAULT_LOG_LEVEL, |
1da177e4 | 264 | "FFF6: Device bus error, message or command phase"}, |
933916f3 | 265 | {0x014A8000, 0, IPR_DEFAULT_LOG_LEVEL, |
35a39691 | 266 | "FFFE: Task Management Function failed"}, |
933916f3 | 267 | {0x015D0000, 0, IPR_DEFAULT_LOG_LEVEL, |
1da177e4 | 268 | "FFF6: Failure prediction threshold exceeded"}, |
933916f3 | 269 | {0x015D9200, 0, IPR_DEFAULT_LOG_LEVEL, |
1da177e4 LT |
270 | "8009: Impending cache battery pack failure"}, |
271 | {0x02040400, 0, 0, | |
272 | "34FF: Disk device format in progress"}, | |
65f56475 BK |
273 | {0x02048000, 0, IPR_DEFAULT_LOG_LEVEL, |
274 | "9070: IOA requested reset"}, | |
1da177e4 LT |
275 | {0x023F0000, 0, 0, |
276 | "Synchronization required"}, | |
277 | {0x024E0000, 0, 0, | |
278 | "No ready, IOA shutdown"}, | |
279 | {0x025A0000, 0, 0, | |
280 | "Not ready, IOA has been shutdown"}, | |
933916f3 | 281 | {0x02670100, 0, IPR_DEFAULT_LOG_LEVEL, |
1da177e4 LT |
282 | "3020: Storage subsystem configuration error"}, |
283 | {0x03110B00, 0, 0, | |
284 | "FFF5: Medium error, data unreadable, recommend reassign"}, | |
285 | {0x03110C00, 0, 0, | |
286 | "7000: Medium error, data unreadable, do not reassign"}, | |
933916f3 | 287 | {0x03310000, 0, IPR_DEFAULT_LOG_LEVEL, |
1da177e4 | 288 | "FFF3: Disk media format bad"}, |
933916f3 | 289 | {0x04050000, 0, IPR_DEFAULT_LOG_LEVEL, |
1da177e4 | 290 | "3002: Addressed device failed to respond to selection"}, |
933916f3 | 291 | {0x04080000, 1, IPR_DEFAULT_LOG_LEVEL, |
1da177e4 | 292 | "3100: Device bus error"}, |
933916f3 | 293 | {0x04080100, 0, IPR_DEFAULT_LOG_LEVEL, |
1da177e4 LT |
294 | "3109: IOA timed out a device command"}, |
295 | {0x04088000, 0, 0, | |
296 | "3120: SCSI bus is not operational"}, | |
933916f3 | 297 | {0x04088100, 0, IPR_DEFAULT_LOG_LEVEL, |
896bbd21 | 298 | "4100: Hard device bus fabric error"}, |
5aa3a333 WB |
299 | {0x04100100, 0, IPR_DEFAULT_LOG_LEVEL, |
300 | "310C: Logical block guard error detected by the device"}, | |
301 | {0x04100300, 0, IPR_DEFAULT_LOG_LEVEL, | |
302 | "310C: Logical block reference tag error detected by the device"}, | |
303 | {0x04108300, 1, IPR_DEFAULT_LOG_LEVEL, | |
304 | "4170: Scatter list tag / sequence number error"}, | |
305 | {0x04109000, 1, IPR_DEFAULT_LOG_LEVEL, | |
306 | "8150: Logical block CRC error on IOA to Host transfer"}, | |
307 | {0x04109200, 1, IPR_DEFAULT_LOG_LEVEL, | |
308 | "4170: Logical block sequence number error on IOA to Host transfer"}, | |
309 | {0x0410A000, 0, IPR_DEFAULT_LOG_LEVEL, | |
310 | "310D: Logical block reference tag error detected by the IOA"}, | |
311 | {0x0410A100, 0, IPR_DEFAULT_LOG_LEVEL, | |
312 | "310D: Logical block guard error detected by the IOA"}, | |
933916f3 | 313 | {0x04118000, 0, IPR_DEFAULT_LOG_LEVEL, |
1da177e4 | 314 | "9000: IOA reserved area data check"}, |
933916f3 | 315 | {0x04118100, 0, IPR_DEFAULT_LOG_LEVEL, |
1da177e4 | 316 | "9001: IOA reserved area invalid data pattern"}, |
933916f3 | 317 | {0x04118200, 0, IPR_DEFAULT_LOG_LEVEL, |
1da177e4 | 318 | "9002: IOA reserved area LRC error"}, |
5aa3a333 WB |
319 | {0x04118300, 1, IPR_DEFAULT_LOG_LEVEL, |
320 | "Hardware Error, IOA metadata access error"}, | |
933916f3 | 321 | {0x04320000, 0, IPR_DEFAULT_LOG_LEVEL, |
1da177e4 | 322 | "102E: Out of alternate sectors for disk storage"}, |
933916f3 | 323 | {0x04330000, 1, IPR_DEFAULT_LOG_LEVEL, |
1da177e4 | 324 | "FFF4: Data transfer underlength error"}, |
933916f3 | 325 | {0x04338000, 1, IPR_DEFAULT_LOG_LEVEL, |
1da177e4 | 326 | "FFF4: Data transfer overlength error"}, |
933916f3 | 327 | {0x043E0100, 0, IPR_DEFAULT_LOG_LEVEL, |
1da177e4 | 328 | "3400: Logical unit failure"}, |
933916f3 | 329 | {0x04408500, 0, IPR_DEFAULT_LOG_LEVEL, |
1da177e4 | 330 | "FFF4: Device microcode is corrupt"}, |
933916f3 | 331 | {0x04418000, 1, IPR_DEFAULT_LOG_LEVEL, |
1da177e4 LT |
332 | "8150: PCI bus error"}, |
333 | {0x04430000, 1, 0, | |
334 | "Unsupported device bus message received"}, | |
933916f3 | 335 | {0x04440000, 1, IPR_DEFAULT_LOG_LEVEL, |
1da177e4 | 336 | "FFF4: Disk device problem"}, |
933916f3 | 337 | {0x04448200, 1, IPR_DEFAULT_LOG_LEVEL, |
1da177e4 | 338 | "8150: Permanent IOA failure"}, |
933916f3 | 339 | {0x04448300, 0, IPR_DEFAULT_LOG_LEVEL, |
1da177e4 | 340 | "3010: Disk device returned wrong response to IOA"}, |
933916f3 | 341 | {0x04448400, 0, IPR_DEFAULT_LOG_LEVEL, |
1da177e4 LT |
342 | "8151: IOA microcode error"}, |
343 | {0x04448500, 0, 0, | |
344 | "Device bus status error"}, | |
933916f3 | 345 | {0x04448600, 0, IPR_DEFAULT_LOG_LEVEL, |
1da177e4 | 346 | "8157: IOA error requiring IOA reset to recover"}, |
35a39691 BK |
347 | {0x04448700, 0, 0, |
348 | "ATA device status error"}, | |
1da177e4 LT |
349 | {0x04490000, 0, 0, |
350 | "Message reject received from the device"}, | |
933916f3 | 351 | {0x04449200, 0, IPR_DEFAULT_LOG_LEVEL, |
1da177e4 | 352 | "8008: A permanent cache battery pack failure occurred"}, |
933916f3 | 353 | {0x0444A000, 0, IPR_DEFAULT_LOG_LEVEL, |
1da177e4 | 354 | "9090: Disk unit has been modified after the last known status"}, |
933916f3 | 355 | {0x0444A200, 0, IPR_DEFAULT_LOG_LEVEL, |
1da177e4 | 356 | "9081: IOA detected device error"}, |
933916f3 | 357 | {0x0444A300, 0, IPR_DEFAULT_LOG_LEVEL, |
1da177e4 | 358 | "9082: IOA detected device error"}, |
933916f3 | 359 | {0x044A0000, 1, IPR_DEFAULT_LOG_LEVEL, |
1da177e4 | 360 | "3110: Device bus error, message or command phase"}, |
933916f3 | 361 | {0x044A8000, 1, IPR_DEFAULT_LOG_LEVEL, |
35a39691 | 362 | "3110: SAS Command / Task Management Function failed"}, |
933916f3 | 363 | {0x04670400, 0, IPR_DEFAULT_LOG_LEVEL, |
1da177e4 | 364 | "9091: Incorrect hardware configuration change has been detected"}, |
933916f3 | 365 | {0x04678000, 0, IPR_DEFAULT_LOG_LEVEL, |
b0df54bb | 366 | "9073: Invalid multi-adapter configuration"}, |
933916f3 | 367 | {0x04678100, 0, IPR_DEFAULT_LOG_LEVEL, |
896bbd21 | 368 | "4010: Incorrect connection between cascaded expanders"}, |
933916f3 | 369 | {0x04678200, 0, IPR_DEFAULT_LOG_LEVEL, |
896bbd21 | 370 | "4020: Connections exceed IOA design limits"}, |
933916f3 | 371 | {0x04678300, 0, IPR_DEFAULT_LOG_LEVEL, |
896bbd21 | 372 | "4030: Incorrect multipath connection"}, |
933916f3 | 373 | {0x04679000, 0, IPR_DEFAULT_LOG_LEVEL, |
896bbd21 | 374 | "4110: Unsupported enclosure function"}, |
933916f3 | 375 | {0x046E0000, 0, IPR_DEFAULT_LOG_LEVEL, |
1da177e4 LT |
376 | "FFF4: Command to logical unit failed"}, |
377 | {0x05240000, 1, 0, | |
378 | "Illegal request, invalid request type or request packet"}, | |
379 | {0x05250000, 0, 0, | |
380 | "Illegal request, invalid resource handle"}, | |
b0df54bb | 381 | {0x05258000, 0, 0, |
382 | "Illegal request, commands not allowed to this device"}, | |
383 | {0x05258100, 0, 0, | |
384 | "Illegal request, command not allowed to a secondary adapter"}, | |
5aa3a333 WB |
385 | {0x05258200, 0, 0, |
386 | "Illegal request, command not allowed to a non-optimized resource"}, | |
1da177e4 LT |
387 | {0x05260000, 0, 0, |
388 | "Illegal request, invalid field in parameter list"}, | |
389 | {0x05260100, 0, 0, | |
390 | "Illegal request, parameter not supported"}, | |
391 | {0x05260200, 0, 0, | |
392 | "Illegal request, parameter value invalid"}, | |
393 | {0x052C0000, 0, 0, | |
394 | "Illegal request, command sequence error"}, | |
b0df54bb | 395 | {0x052C8000, 1, 0, |
396 | "Illegal request, dual adapter support not enabled"}, | |
933916f3 | 397 | {0x06040500, 0, IPR_DEFAULT_LOG_LEVEL, |
1da177e4 | 398 | "9031: Array protection temporarily suspended, protection resuming"}, |
933916f3 | 399 | {0x06040600, 0, IPR_DEFAULT_LOG_LEVEL, |
1da177e4 | 400 | "9040: Array protection temporarily suspended, protection resuming"}, |
933916f3 | 401 | {0x06288000, 0, IPR_DEFAULT_LOG_LEVEL, |
896bbd21 | 402 | "3140: Device bus not ready to ready transition"}, |
933916f3 | 403 | {0x06290000, 0, IPR_DEFAULT_LOG_LEVEL, |
1da177e4 LT |
404 | "FFFB: SCSI bus was reset"}, |
405 | {0x06290500, 0, 0, | |
406 | "FFFE: SCSI bus transition to single ended"}, | |
407 | {0x06290600, 0, 0, | |
408 | "FFFE: SCSI bus transition to LVD"}, | |
933916f3 | 409 | {0x06298000, 0, IPR_DEFAULT_LOG_LEVEL, |
1da177e4 | 410 | "FFFB: SCSI bus was reset by another initiator"}, |
933916f3 | 411 | {0x063F0300, 0, IPR_DEFAULT_LOG_LEVEL, |
1da177e4 | 412 | "3029: A device replacement has occurred"}, |
933916f3 | 413 | {0x064C8000, 0, IPR_DEFAULT_LOG_LEVEL, |
1da177e4 | 414 | "9051: IOA cache data exists for a missing or failed device"}, |
933916f3 | 415 | {0x064C8100, 0, IPR_DEFAULT_LOG_LEVEL, |
b0df54bb | 416 | "9055: Auxiliary cache IOA contains cache data needed by the primary IOA"}, |
933916f3 | 417 | {0x06670100, 0, IPR_DEFAULT_LOG_LEVEL, |
1da177e4 | 418 | "9025: Disk unit is not supported at its physical location"}, |
933916f3 | 419 | {0x06670600, 0, IPR_DEFAULT_LOG_LEVEL, |
1da177e4 | 420 | "3020: IOA detected a SCSI bus configuration error"}, |
933916f3 | 421 | {0x06678000, 0, IPR_DEFAULT_LOG_LEVEL, |
1da177e4 | 422 | "3150: SCSI bus configuration error"}, |
933916f3 | 423 | {0x06678100, 0, IPR_DEFAULT_LOG_LEVEL, |
b0df54bb | 424 | "9074: Asymmetric advanced function disk configuration"}, |
933916f3 | 425 | {0x06678300, 0, IPR_DEFAULT_LOG_LEVEL, |
896bbd21 | 426 | "4040: Incomplete multipath connection between IOA and enclosure"}, |
933916f3 | 427 | {0x06678400, 0, IPR_DEFAULT_LOG_LEVEL, |
896bbd21 | 428 | "4041: Incomplete multipath connection between enclosure and device"}, |
933916f3 | 429 | {0x06678500, 0, IPR_DEFAULT_LOG_LEVEL, |
896bbd21 | 430 | "9075: Incomplete multipath connection between IOA and remote IOA"}, |
933916f3 | 431 | {0x06678600, 0, IPR_DEFAULT_LOG_LEVEL, |
896bbd21 | 432 | "9076: Configuration error, missing remote IOA"}, |
933916f3 | 433 | {0x06679100, 0, IPR_DEFAULT_LOG_LEVEL, |
896bbd21 | 434 | "4050: Enclosure does not support a required multipath function"}, |
b75424fc WB |
435 | {0x06690000, 0, IPR_DEFAULT_LOG_LEVEL, |
436 | "4070: Logically bad block written on device"}, | |
933916f3 | 437 | {0x06690200, 0, IPR_DEFAULT_LOG_LEVEL, |
1da177e4 | 438 | "9041: Array protection temporarily suspended"}, |
933916f3 | 439 | {0x06698200, 0, IPR_DEFAULT_LOG_LEVEL, |
1da177e4 | 440 | "9042: Corrupt array parity detected on specified device"}, |
933916f3 | 441 | {0x066B0200, 0, IPR_DEFAULT_LOG_LEVEL, |
1da177e4 | 442 | "9030: Array no longer protected due to missing or failed disk unit"}, |
933916f3 | 443 | {0x066B8000, 0, IPR_DEFAULT_LOG_LEVEL, |
b0df54bb | 444 | "9071: Link operational transition"}, |
933916f3 | 445 | {0x066B8100, 0, IPR_DEFAULT_LOG_LEVEL, |
b0df54bb | 446 | "9072: Link not operational transition"}, |
933916f3 | 447 | {0x066B8200, 0, IPR_DEFAULT_LOG_LEVEL, |
1da177e4 | 448 | "9032: Array exposed but still protected"}, |
e435340c BK |
449 | {0x066B8300, 0, IPR_DEFAULT_LOG_LEVEL + 1, |
450 | "70DD: Device forced failed by disrupt device command"}, | |
933916f3 | 451 | {0x066B9100, 0, IPR_DEFAULT_LOG_LEVEL, |
896bbd21 | 452 | "4061: Multipath redundancy level got better"}, |
933916f3 | 453 | {0x066B9200, 0, IPR_DEFAULT_LOG_LEVEL, |
896bbd21 | 454 | "4060: Multipath redundancy level got worse"}, |
1da177e4 LT |
455 | {0x07270000, 0, 0, |
456 | "Failure due to other device"}, | |
933916f3 | 457 | {0x07278000, 0, IPR_DEFAULT_LOG_LEVEL, |
1da177e4 | 458 | "9008: IOA does not support functions expected by devices"}, |
933916f3 | 459 | {0x07278100, 0, IPR_DEFAULT_LOG_LEVEL, |
1da177e4 | 460 | "9010: Cache data associated with attached devices cannot be found"}, |
933916f3 | 461 | {0x07278200, 0, IPR_DEFAULT_LOG_LEVEL, |
1da177e4 | 462 | "9011: Cache data belongs to devices other than those attached"}, |
933916f3 | 463 | {0x07278400, 0, IPR_DEFAULT_LOG_LEVEL, |
1da177e4 | 464 | "9020: Array missing 2 or more devices with only 1 device present"}, |
933916f3 | 465 | {0x07278500, 0, IPR_DEFAULT_LOG_LEVEL, |
1da177e4 | 466 | "9021: Array missing 2 or more devices with 2 or more devices present"}, |
933916f3 | 467 | {0x07278600, 0, IPR_DEFAULT_LOG_LEVEL, |
1da177e4 | 468 | "9022: Exposed array is missing a required device"}, |
933916f3 | 469 | {0x07278700, 0, IPR_DEFAULT_LOG_LEVEL, |
1da177e4 | 470 | "9023: Array member(s) not at required physical locations"}, |
933916f3 | 471 | {0x07278800, 0, IPR_DEFAULT_LOG_LEVEL, |
1da177e4 | 472 | "9024: Array not functional due to present hardware configuration"}, |
933916f3 | 473 | {0x07278900, 0, IPR_DEFAULT_LOG_LEVEL, |
1da177e4 | 474 | "9026: Array not functional due to present hardware configuration"}, |
933916f3 | 475 | {0x07278A00, 0, IPR_DEFAULT_LOG_LEVEL, |
1da177e4 | 476 | "9027: Array is missing a device and parity is out of sync"}, |
933916f3 | 477 | {0x07278B00, 0, IPR_DEFAULT_LOG_LEVEL, |
1da177e4 | 478 | "9028: Maximum number of arrays already exist"}, |
933916f3 | 479 | {0x07278C00, 0, IPR_DEFAULT_LOG_LEVEL, |
1da177e4 | 480 | "9050: Required cache data cannot be located for a disk unit"}, |
933916f3 | 481 | {0x07278D00, 0, IPR_DEFAULT_LOG_LEVEL, |
1da177e4 | 482 | "9052: Cache data exists for a device that has been modified"}, |
933916f3 | 483 | {0x07278F00, 0, IPR_DEFAULT_LOG_LEVEL, |
1da177e4 | 484 | "9054: IOA resources not available due to previous problems"}, |
933916f3 | 485 | {0x07279100, 0, IPR_DEFAULT_LOG_LEVEL, |
1da177e4 | 486 | "9092: Disk unit requires initialization before use"}, |
933916f3 | 487 | {0x07279200, 0, IPR_DEFAULT_LOG_LEVEL, |
1da177e4 | 488 | "9029: Incorrect hardware configuration change has been detected"}, |
933916f3 | 489 | {0x07279600, 0, IPR_DEFAULT_LOG_LEVEL, |
1da177e4 | 490 | "9060: One or more disk pairs are missing from an array"}, |
933916f3 | 491 | {0x07279700, 0, IPR_DEFAULT_LOG_LEVEL, |
1da177e4 | 492 | "9061: One or more disks are missing from an array"}, |
933916f3 | 493 | {0x07279800, 0, IPR_DEFAULT_LOG_LEVEL, |
1da177e4 | 494 | "9062: One or more disks are missing from an array"}, |
933916f3 | 495 | {0x07279900, 0, IPR_DEFAULT_LOG_LEVEL, |
1da177e4 LT |
496 | "9063: Maximum number of functional arrays has been exceeded"}, |
497 | {0x0B260000, 0, 0, | |
498 | "Aborted command, invalid descriptor"}, | |
499 | {0x0B5A0000, 0, 0, | |
500 | "Command terminated by host"} | |
501 | }; | |
502 | ||
503 | static const struct ipr_ses_table_entry ipr_ses_table[] = { | |
504 | { "2104-DL1 ", "XXXXXXXXXXXXXXXX", 80 }, | |
505 | { "2104-TL1 ", "XXXXXXXXXXXXXXXX", 80 }, | |
506 | { "HSBP07M P U2SCSI", "XXXXXXXXXXXXXXXX", 80 }, /* Hidive 7 slot */ | |
507 | { "HSBP05M P U2SCSI", "XXXXXXXXXXXXXXXX", 80 }, /* Hidive 5 slot */ | |
508 | { "HSBP05M S U2SCSI", "XXXXXXXXXXXXXXXX", 80 }, /* Bowtie */ | |
509 | { "HSBP06E ASU2SCSI", "XXXXXXXXXXXXXXXX", 80 }, /* MartinFenning */ | |
510 | { "2104-DU3 ", "XXXXXXXXXXXXXXXX", 160 }, | |
511 | { "2104-TU3 ", "XXXXXXXXXXXXXXXX", 160 }, | |
512 | { "HSBP04C RSU2SCSI", "XXXXXXX*XXXXXXXX", 160 }, | |
513 | { "HSBP06E RSU2SCSI", "XXXXXXX*XXXXXXXX", 160 }, | |
514 | { "St V1S2 ", "XXXXXXXXXXXXXXXX", 160 }, | |
515 | { "HSBPD4M PU3SCSI", "XXXXXXX*XXXXXXXX", 160 }, | |
516 | { "VSBPD1H U3SCSI", "XXXXXXX*XXXXXXXX", 160 } | |
517 | }; | |
518 | ||
519 | /* | |
520 | * Function Prototypes | |
521 | */ | |
522 | static int ipr_reset_alert(struct ipr_cmnd *); | |
523 | static void ipr_process_ccn(struct ipr_cmnd *); | |
524 | static void ipr_process_error(struct ipr_cmnd *); | |
525 | static void ipr_reset_ioa_job(struct ipr_cmnd *); | |
526 | static void ipr_initiate_ioa_reset(struct ipr_ioa_cfg *, | |
527 | enum ipr_shutdown_type); | |
528 | ||
529 | #ifdef CONFIG_SCSI_IPR_TRACE | |
530 | /** | |
531 | * ipr_trc_hook - Add a trace entry to the driver trace | |
532 | * @ipr_cmd: ipr command struct | |
533 | * @type: trace type | |
534 | * @add_data: additional data | |
535 | * | |
536 | * Return value: | |
537 | * none | |
538 | **/ | |
539 | static void ipr_trc_hook(struct ipr_cmnd *ipr_cmd, | |
540 | u8 type, u32 add_data) | |
541 | { | |
542 | struct ipr_trace_entry *trace_entry; | |
543 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; | |
544 | ||
545 | trace_entry = &ioa_cfg->trace[ioa_cfg->trace_index++]; | |
546 | trace_entry->time = jiffies; | |
547 | trace_entry->op_code = ipr_cmd->ioarcb.cmd_pkt.cdb[0]; | |
548 | trace_entry->type = type; | |
a32c055f WB |
549 | if (ipr_cmd->ioa_cfg->sis64) |
550 | trace_entry->ata_op_code = ipr_cmd->i.ata_ioadl.regs.command; | |
551 | else | |
552 | trace_entry->ata_op_code = ipr_cmd->ioarcb.u.add_data.u.regs.command; | |
35a39691 | 553 | trace_entry->cmd_index = ipr_cmd->cmd_index & 0xff; |
1da177e4 LT |
554 | trace_entry->res_handle = ipr_cmd->ioarcb.res_handle; |
555 | trace_entry->u.add_data = add_data; | |
556 | } | |
557 | #else | |
558 | #define ipr_trc_hook(ipr_cmd, type, add_data) do { } while(0) | |
559 | #endif | |
560 | ||
561 | /** | |
562 | * ipr_reinit_ipr_cmnd - Re-initialize an IPR Cmnd block for reuse | |
563 | * @ipr_cmd: ipr command struct | |
564 | * | |
565 | * Return value: | |
566 | * none | |
567 | **/ | |
568 | static void ipr_reinit_ipr_cmnd(struct ipr_cmnd *ipr_cmd) | |
569 | { | |
570 | struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb; | |
96d21f00 WB |
571 | struct ipr_ioasa *ioasa = &ipr_cmd->s.ioasa; |
572 | struct ipr_ioasa64 *ioasa64 = &ipr_cmd->s.ioasa64; | |
a32c055f | 573 | dma_addr_t dma_addr = ipr_cmd->dma_addr; |
1da177e4 LT |
574 | |
575 | memset(&ioarcb->cmd_pkt, 0, sizeof(struct ipr_cmd_pkt)); | |
a32c055f | 576 | ioarcb->data_transfer_length = 0; |
1da177e4 | 577 | ioarcb->read_data_transfer_length = 0; |
a32c055f | 578 | ioarcb->ioadl_len = 0; |
1da177e4 | 579 | ioarcb->read_ioadl_len = 0; |
a32c055f | 580 | |
96d21f00 | 581 | if (ipr_cmd->ioa_cfg->sis64) { |
a32c055f WB |
582 | ioarcb->u.sis64_addr_data.data_ioadl_addr = |
583 | cpu_to_be64(dma_addr + offsetof(struct ipr_cmnd, i.ioadl64)); | |
96d21f00 WB |
584 | ioasa64->u.gata.status = 0; |
585 | } else { | |
a32c055f WB |
586 | ioarcb->write_ioadl_addr = |
587 | cpu_to_be32(dma_addr + offsetof(struct ipr_cmnd, i.ioadl)); | |
588 | ioarcb->read_ioadl_addr = ioarcb->write_ioadl_addr; | |
96d21f00 | 589 | ioasa->u.gata.status = 0; |
a32c055f WB |
590 | } |
591 | ||
96d21f00 WB |
592 | ioasa->hdr.ioasc = 0; |
593 | ioasa->hdr.residual_data_len = 0; | |
1da177e4 | 594 | ipr_cmd->scsi_cmd = NULL; |
35a39691 | 595 | ipr_cmd->qc = NULL; |
1da177e4 LT |
596 | ipr_cmd->sense_buffer[0] = 0; |
597 | ipr_cmd->dma_use_sg = 0; | |
598 | } | |
599 | ||
600 | /** | |
601 | * ipr_init_ipr_cmnd - Initialize an IPR Cmnd block | |
602 | * @ipr_cmd: ipr command struct | |
603 | * | |
604 | * Return value: | |
605 | * none | |
606 | **/ | |
607 | static void ipr_init_ipr_cmnd(struct ipr_cmnd *ipr_cmd) | |
608 | { | |
609 | ipr_reinit_ipr_cmnd(ipr_cmd); | |
610 | ipr_cmd->u.scratch = 0; | |
611 | ipr_cmd->sibling = NULL; | |
612 | init_timer(&ipr_cmd->timer); | |
613 | } | |
614 | ||
615 | /** | |
616 | * ipr_get_free_ipr_cmnd - Get a free IPR Cmnd block | |
617 | * @ioa_cfg: ioa config struct | |
618 | * | |
619 | * Return value: | |
620 | * pointer to ipr command struct | |
621 | **/ | |
622 | static | |
623 | struct ipr_cmnd *ipr_get_free_ipr_cmnd(struct ipr_ioa_cfg *ioa_cfg) | |
624 | { | |
625 | struct ipr_cmnd *ipr_cmd; | |
626 | ||
627 | ipr_cmd = list_entry(ioa_cfg->free_q.next, struct ipr_cmnd, queue); | |
628 | list_del(&ipr_cmd->queue); | |
629 | ipr_init_ipr_cmnd(ipr_cmd); | |
630 | ||
631 | return ipr_cmd; | |
632 | } | |
633 | ||
1da177e4 LT |
634 | /** |
635 | * ipr_mask_and_clear_interrupts - Mask all and clear specified interrupts | |
636 | * @ioa_cfg: ioa config struct | |
637 | * @clr_ints: interrupts to clear | |
638 | * | |
639 | * This function masks all interrupts on the adapter, then clears the | |
640 | * interrupts specified in the mask | |
641 | * | |
642 | * Return value: | |
643 | * none | |
644 | **/ | |
645 | static void ipr_mask_and_clear_interrupts(struct ipr_ioa_cfg *ioa_cfg, | |
646 | u32 clr_ints) | |
647 | { | |
648 | volatile u32 int_reg; | |
649 | ||
650 | /* Stop new interrupts */ | |
651 | ioa_cfg->allow_interrupts = 0; | |
652 | ||
653 | /* Set interrupt mask to stop all new interrupts */ | |
214777ba WB |
654 | if (ioa_cfg->sis64) |
655 | writeq(~0, ioa_cfg->regs.set_interrupt_mask_reg); | |
656 | else | |
657 | writel(~0, ioa_cfg->regs.set_interrupt_mask_reg); | |
1da177e4 LT |
658 | |
659 | /* Clear any pending interrupts */ | |
214777ba WB |
660 | if (ioa_cfg->sis64) |
661 | writel(~0, ioa_cfg->regs.clr_interrupt_reg); | |
662 | writel(clr_ints, ioa_cfg->regs.clr_interrupt_reg32); | |
1da177e4 LT |
663 | int_reg = readl(ioa_cfg->regs.sense_interrupt_reg); |
664 | } | |
665 | ||
666 | /** | |
667 | * ipr_save_pcix_cmd_reg - Save PCI-X command register | |
668 | * @ioa_cfg: ioa config struct | |
669 | * | |
670 | * Return value: | |
671 | * 0 on success / -EIO on failure | |
672 | **/ | |
673 | static int ipr_save_pcix_cmd_reg(struct ipr_ioa_cfg *ioa_cfg) | |
674 | { | |
675 | int pcix_cmd_reg = pci_find_capability(ioa_cfg->pdev, PCI_CAP_ID_PCIX); | |
676 | ||
7dce0e1c BK |
677 | if (pcix_cmd_reg == 0) |
678 | return 0; | |
1da177e4 LT |
679 | |
680 | if (pci_read_config_word(ioa_cfg->pdev, pcix_cmd_reg + PCI_X_CMD, | |
681 | &ioa_cfg->saved_pcix_cmd_reg) != PCIBIOS_SUCCESSFUL) { | |
682 | dev_err(&ioa_cfg->pdev->dev, "Failed to save PCI-X command register\n"); | |
683 | return -EIO; | |
684 | } | |
685 | ||
686 | ioa_cfg->saved_pcix_cmd_reg |= PCI_X_CMD_DPERR_E | PCI_X_CMD_ERO; | |
687 | return 0; | |
688 | } | |
689 | ||
690 | /** | |
691 | * ipr_set_pcix_cmd_reg - Setup PCI-X command register | |
692 | * @ioa_cfg: ioa config struct | |
693 | * | |
694 | * Return value: | |
695 | * 0 on success / -EIO on failure | |
696 | **/ | |
697 | static int ipr_set_pcix_cmd_reg(struct ipr_ioa_cfg *ioa_cfg) | |
698 | { | |
699 | int pcix_cmd_reg = pci_find_capability(ioa_cfg->pdev, PCI_CAP_ID_PCIX); | |
700 | ||
701 | if (pcix_cmd_reg) { | |
702 | if (pci_write_config_word(ioa_cfg->pdev, pcix_cmd_reg + PCI_X_CMD, | |
703 | ioa_cfg->saved_pcix_cmd_reg) != PCIBIOS_SUCCESSFUL) { | |
704 | dev_err(&ioa_cfg->pdev->dev, "Failed to setup PCI-X command register\n"); | |
705 | return -EIO; | |
706 | } | |
1da177e4 LT |
707 | } |
708 | ||
709 | return 0; | |
710 | } | |
711 | ||
35a39691 BK |
712 | /** |
713 | * ipr_sata_eh_done - done function for aborted SATA commands | |
714 | * @ipr_cmd: ipr command struct | |
715 | * | |
716 | * This function is invoked for ops generated to SATA | |
717 | * devices which are being aborted. | |
718 | * | |
719 | * Return value: | |
720 | * none | |
721 | **/ | |
722 | static void ipr_sata_eh_done(struct ipr_cmnd *ipr_cmd) | |
723 | { | |
724 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; | |
725 | struct ata_queued_cmd *qc = ipr_cmd->qc; | |
726 | struct ipr_sata_port *sata_port = qc->ap->private_data; | |
727 | ||
728 | qc->err_mask |= AC_ERR_OTHER; | |
729 | sata_port->ioasa.status |= ATA_BUSY; | |
730 | list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q); | |
731 | ata_qc_complete(qc); | |
732 | } | |
733 | ||
1da177e4 LT |
734 | /** |
735 | * ipr_scsi_eh_done - mid-layer done function for aborted ops | |
736 | * @ipr_cmd: ipr command struct | |
737 | * | |
738 | * This function is invoked by the interrupt handler for | |
739 | * ops generated by the SCSI mid-layer which are being aborted. | |
740 | * | |
741 | * Return value: | |
742 | * none | |
743 | **/ | |
744 | static void ipr_scsi_eh_done(struct ipr_cmnd *ipr_cmd) | |
745 | { | |
746 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; | |
747 | struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd; | |
748 | ||
749 | scsi_cmd->result |= (DID_ERROR << 16); | |
750 | ||
63015bc9 | 751 | scsi_dma_unmap(ipr_cmd->scsi_cmd); |
1da177e4 LT |
752 | scsi_cmd->scsi_done(scsi_cmd); |
753 | list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q); | |
754 | } | |
755 | ||
756 | /** | |
757 | * ipr_fail_all_ops - Fails all outstanding ops. | |
758 | * @ioa_cfg: ioa config struct | |
759 | * | |
760 | * This function fails all outstanding ops. | |
761 | * | |
762 | * Return value: | |
763 | * none | |
764 | **/ | |
765 | static void ipr_fail_all_ops(struct ipr_ioa_cfg *ioa_cfg) | |
766 | { | |
767 | struct ipr_cmnd *ipr_cmd, *temp; | |
768 | ||
769 | ENTER; | |
770 | list_for_each_entry_safe(ipr_cmd, temp, &ioa_cfg->pending_q, queue) { | |
771 | list_del(&ipr_cmd->queue); | |
772 | ||
96d21f00 WB |
773 | ipr_cmd->s.ioasa.hdr.ioasc = cpu_to_be32(IPR_IOASC_IOA_WAS_RESET); |
774 | ipr_cmd->s.ioasa.hdr.ilid = cpu_to_be32(IPR_DRIVER_ILID); | |
1da177e4 LT |
775 | |
776 | if (ipr_cmd->scsi_cmd) | |
777 | ipr_cmd->done = ipr_scsi_eh_done; | |
35a39691 BK |
778 | else if (ipr_cmd->qc) |
779 | ipr_cmd->done = ipr_sata_eh_done; | |
1da177e4 LT |
780 | |
781 | ipr_trc_hook(ipr_cmd, IPR_TRACE_FINISH, IPR_IOASC_IOA_WAS_RESET); | |
782 | del_timer(&ipr_cmd->timer); | |
783 | ipr_cmd->done(ipr_cmd); | |
784 | } | |
785 | ||
786 | LEAVE; | |
787 | } | |
788 | ||
a32c055f WB |
789 | /** |
790 | * ipr_send_command - Send driver initiated requests. | |
791 | * @ipr_cmd: ipr command struct | |
792 | * | |
793 | * This function sends a command to the adapter using the correct write call. | |
794 | * In the case of sis64, calculate the ioarcb size required. Then or in the | |
795 | * appropriate bits. | |
796 | * | |
797 | * Return value: | |
798 | * none | |
799 | **/ | |
800 | static void ipr_send_command(struct ipr_cmnd *ipr_cmd) | |
801 | { | |
802 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; | |
803 | dma_addr_t send_dma_addr = ipr_cmd->dma_addr; | |
804 | ||
805 | if (ioa_cfg->sis64) { | |
806 | /* The default size is 256 bytes */ | |
807 | send_dma_addr |= 0x1; | |
808 | ||
809 | /* If the number of ioadls * size of ioadl > 128 bytes, | |
810 | then use a 512 byte ioarcb */ | |
811 | if (ipr_cmd->dma_use_sg * sizeof(struct ipr_ioadl64_desc) > 128 ) | |
812 | send_dma_addr |= 0x4; | |
813 | writeq(send_dma_addr, ioa_cfg->regs.ioarrin_reg); | |
814 | } else | |
815 | writel(send_dma_addr, ioa_cfg->regs.ioarrin_reg); | |
816 | } | |
817 | ||
1da177e4 LT |
818 | /** |
819 | * ipr_do_req - Send driver initiated requests. | |
820 | * @ipr_cmd: ipr command struct | |
821 | * @done: done function | |
822 | * @timeout_func: timeout function | |
823 | * @timeout: timeout value | |
824 | * | |
825 | * This function sends the specified command to the adapter with the | |
826 | * timeout given. The done function is invoked on command completion. | |
827 | * | |
828 | * Return value: | |
829 | * none | |
830 | **/ | |
831 | static void ipr_do_req(struct ipr_cmnd *ipr_cmd, | |
832 | void (*done) (struct ipr_cmnd *), | |
833 | void (*timeout_func) (struct ipr_cmnd *), u32 timeout) | |
834 | { | |
835 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; | |
836 | ||
837 | list_add_tail(&ipr_cmd->queue, &ioa_cfg->pending_q); | |
838 | ||
839 | ipr_cmd->done = done; | |
840 | ||
841 | ipr_cmd->timer.data = (unsigned long) ipr_cmd; | |
842 | ipr_cmd->timer.expires = jiffies + timeout; | |
843 | ipr_cmd->timer.function = (void (*)(unsigned long))timeout_func; | |
844 | ||
845 | add_timer(&ipr_cmd->timer); | |
846 | ||
847 | ipr_trc_hook(ipr_cmd, IPR_TRACE_START, 0); | |
848 | ||
849 | mb(); | |
a32c055f WB |
850 | |
851 | ipr_send_command(ipr_cmd); | |
1da177e4 LT |
852 | } |
853 | ||
854 | /** | |
855 | * ipr_internal_cmd_done - Op done function for an internally generated op. | |
856 | * @ipr_cmd: ipr command struct | |
857 | * | |
858 | * This function is the op done function for an internally generated, | |
859 | * blocking op. It simply wakes the sleeping thread. | |
860 | * | |
861 | * Return value: | |
862 | * none | |
863 | **/ | |
864 | static void ipr_internal_cmd_done(struct ipr_cmnd *ipr_cmd) | |
865 | { | |
866 | if (ipr_cmd->sibling) | |
867 | ipr_cmd->sibling = NULL; | |
868 | else | |
869 | complete(&ipr_cmd->completion); | |
870 | } | |
871 | ||
a32c055f WB |
872 | /** |
873 | * ipr_init_ioadl - initialize the ioadl for the correct SIS type | |
874 | * @ipr_cmd: ipr command struct | |
875 | * @dma_addr: dma address | |
876 | * @len: transfer length | |
877 | * @flags: ioadl flag value | |
878 | * | |
879 | * This function initializes an ioadl in the case where there is only a single | |
880 | * descriptor. | |
881 | * | |
882 | * Return value: | |
883 | * nothing | |
884 | **/ | |
885 | static void ipr_init_ioadl(struct ipr_cmnd *ipr_cmd, dma_addr_t dma_addr, | |
886 | u32 len, int flags) | |
887 | { | |
888 | struct ipr_ioadl_desc *ioadl = ipr_cmd->i.ioadl; | |
889 | struct ipr_ioadl64_desc *ioadl64 = ipr_cmd->i.ioadl64; | |
890 | ||
891 | ipr_cmd->dma_use_sg = 1; | |
892 | ||
893 | if (ipr_cmd->ioa_cfg->sis64) { | |
894 | ioadl64->flags = cpu_to_be32(flags); | |
895 | ioadl64->data_len = cpu_to_be32(len); | |
896 | ioadl64->address = cpu_to_be64(dma_addr); | |
897 | ||
898 | ipr_cmd->ioarcb.ioadl_len = | |
899 | cpu_to_be32(sizeof(struct ipr_ioadl64_desc)); | |
900 | ipr_cmd->ioarcb.data_transfer_length = cpu_to_be32(len); | |
901 | } else { | |
902 | ioadl->flags_and_data_len = cpu_to_be32(flags | len); | |
903 | ioadl->address = cpu_to_be32(dma_addr); | |
904 | ||
905 | if (flags == IPR_IOADL_FLAGS_READ_LAST) { | |
906 | ipr_cmd->ioarcb.read_ioadl_len = | |
907 | cpu_to_be32(sizeof(struct ipr_ioadl_desc)); | |
908 | ipr_cmd->ioarcb.read_data_transfer_length = cpu_to_be32(len); | |
909 | } else { | |
910 | ipr_cmd->ioarcb.ioadl_len = | |
911 | cpu_to_be32(sizeof(struct ipr_ioadl_desc)); | |
912 | ipr_cmd->ioarcb.data_transfer_length = cpu_to_be32(len); | |
913 | } | |
914 | } | |
915 | } | |
916 | ||
1da177e4 LT |
917 | /** |
918 | * ipr_send_blocking_cmd - Send command and sleep on its completion. | |
919 | * @ipr_cmd: ipr command struct | |
920 | * @timeout_func: function to invoke if command times out | |
921 | * @timeout: timeout | |
922 | * | |
923 | * Return value: | |
924 | * none | |
925 | **/ | |
926 | static void ipr_send_blocking_cmd(struct ipr_cmnd *ipr_cmd, | |
927 | void (*timeout_func) (struct ipr_cmnd *ipr_cmd), | |
928 | u32 timeout) | |
929 | { | |
930 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; | |
931 | ||
932 | init_completion(&ipr_cmd->completion); | |
933 | ipr_do_req(ipr_cmd, ipr_internal_cmd_done, timeout_func, timeout); | |
934 | ||
935 | spin_unlock_irq(ioa_cfg->host->host_lock); | |
936 | wait_for_completion(&ipr_cmd->completion); | |
937 | spin_lock_irq(ioa_cfg->host->host_lock); | |
938 | } | |
939 | ||
940 | /** | |
941 | * ipr_send_hcam - Send an HCAM to the adapter. | |
942 | * @ioa_cfg: ioa config struct | |
943 | * @type: HCAM type | |
944 | * @hostrcb: hostrcb struct | |
945 | * | |
946 | * This function will send a Host Controlled Async command to the adapter. | |
947 | * If HCAMs are currently not allowed to be issued to the adapter, it will | |
948 | * place the hostrcb on the free queue. | |
949 | * | |
950 | * Return value: | |
951 | * none | |
952 | **/ | |
953 | static void ipr_send_hcam(struct ipr_ioa_cfg *ioa_cfg, u8 type, | |
954 | struct ipr_hostrcb *hostrcb) | |
955 | { | |
956 | struct ipr_cmnd *ipr_cmd; | |
957 | struct ipr_ioarcb *ioarcb; | |
958 | ||
959 | if (ioa_cfg->allow_cmds) { | |
960 | ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg); | |
961 | list_add_tail(&ipr_cmd->queue, &ioa_cfg->pending_q); | |
962 | list_add_tail(&hostrcb->queue, &ioa_cfg->hostrcb_pending_q); | |
963 | ||
964 | ipr_cmd->u.hostrcb = hostrcb; | |
965 | ioarcb = &ipr_cmd->ioarcb; | |
966 | ||
967 | ioarcb->res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE); | |
968 | ioarcb->cmd_pkt.request_type = IPR_RQTYPE_HCAM; | |
969 | ioarcb->cmd_pkt.cdb[0] = IPR_HOST_CONTROLLED_ASYNC; | |
970 | ioarcb->cmd_pkt.cdb[1] = type; | |
971 | ioarcb->cmd_pkt.cdb[7] = (sizeof(hostrcb->hcam) >> 8) & 0xff; | |
972 | ioarcb->cmd_pkt.cdb[8] = sizeof(hostrcb->hcam) & 0xff; | |
973 | ||
a32c055f WB |
974 | ipr_init_ioadl(ipr_cmd, hostrcb->hostrcb_dma, |
975 | sizeof(hostrcb->hcam), IPR_IOADL_FLAGS_READ_LAST); | |
1da177e4 LT |
976 | |
977 | if (type == IPR_HCAM_CDB_OP_CODE_CONFIG_CHANGE) | |
978 | ipr_cmd->done = ipr_process_ccn; | |
979 | else | |
980 | ipr_cmd->done = ipr_process_error; | |
981 | ||
982 | ipr_trc_hook(ipr_cmd, IPR_TRACE_START, IPR_IOA_RES_ADDR); | |
983 | ||
984 | mb(); | |
a32c055f WB |
985 | |
986 | ipr_send_command(ipr_cmd); | |
1da177e4 LT |
987 | } else { |
988 | list_add_tail(&hostrcb->queue, &ioa_cfg->hostrcb_free_q); | |
989 | } | |
990 | } | |
991 | ||
3e7ebdfa WB |
992 | /** |
993 | * ipr_update_ata_class - Update the ata class in the resource entry | |
994 | * @res: resource entry struct | |
995 | * @proto: cfgte device bus protocol value | |
996 | * | |
997 | * Return value: | |
998 | * none | |
999 | **/ | |
1000 | static void ipr_update_ata_class(struct ipr_resource_entry *res, unsigned int proto) | |
1001 | { | |
1002 | switch(proto) { | |
1003 | case IPR_PROTO_SATA: | |
1004 | case IPR_PROTO_SAS_STP: | |
1005 | res->ata_class = ATA_DEV_ATA; | |
1006 | break; | |
1007 | case IPR_PROTO_SATA_ATAPI: | |
1008 | case IPR_PROTO_SAS_STP_ATAPI: | |
1009 | res->ata_class = ATA_DEV_ATAPI; | |
1010 | break; | |
1011 | default: | |
1012 | res->ata_class = ATA_DEV_UNKNOWN; | |
1013 | break; | |
1014 | }; | |
1015 | } | |
1016 | ||
1da177e4 LT |
1017 | /** |
1018 | * ipr_init_res_entry - Initialize a resource entry struct. | |
1019 | * @res: resource entry struct | |
3e7ebdfa | 1020 | * @cfgtew: config table entry wrapper struct |
1da177e4 LT |
1021 | * |
1022 | * Return value: | |
1023 | * none | |
1024 | **/ | |
3e7ebdfa WB |
1025 | static void ipr_init_res_entry(struct ipr_resource_entry *res, |
1026 | struct ipr_config_table_entry_wrapper *cfgtew) | |
1da177e4 | 1027 | { |
3e7ebdfa WB |
1028 | int found = 0; |
1029 | unsigned int proto; | |
1030 | struct ipr_ioa_cfg *ioa_cfg = res->ioa_cfg; | |
1031 | struct ipr_resource_entry *gscsi_res = NULL; | |
1032 | ||
ee0a90fa | 1033 | res->needs_sync_complete = 0; |
1da177e4 LT |
1034 | res->in_erp = 0; |
1035 | res->add_to_ml = 0; | |
1036 | res->del_from_ml = 0; | |
1037 | res->resetting_device = 0; | |
1038 | res->sdev = NULL; | |
35a39691 | 1039 | res->sata_port = NULL; |
3e7ebdfa WB |
1040 | |
1041 | if (ioa_cfg->sis64) { | |
1042 | proto = cfgtew->u.cfgte64->proto; | |
1043 | res->res_flags = cfgtew->u.cfgte64->res_flags; | |
1044 | res->qmodel = IPR_QUEUEING_MODEL64(res); | |
438b0331 | 1045 | res->type = cfgtew->u.cfgte64->res_type; |
3e7ebdfa WB |
1046 | |
1047 | memcpy(res->res_path, &cfgtew->u.cfgte64->res_path, | |
1048 | sizeof(res->res_path)); | |
1049 | ||
1050 | res->bus = 0; | |
1051 | res->lun = scsilun_to_int(&res->dev_lun); | |
1052 | ||
1053 | if (res->type == IPR_RES_TYPE_GENERIC_SCSI) { | |
1054 | list_for_each_entry(gscsi_res, &ioa_cfg->used_res_q, queue) { | |
1055 | if (gscsi_res->dev_id == cfgtew->u.cfgte64->dev_id) { | |
1056 | found = 1; | |
1057 | res->target = gscsi_res->target; | |
1058 | break; | |
1059 | } | |
1060 | } | |
1061 | if (!found) { | |
1062 | res->target = find_first_zero_bit(ioa_cfg->target_ids, | |
1063 | ioa_cfg->max_devs_supported); | |
1064 | set_bit(res->target, ioa_cfg->target_ids); | |
1065 | } | |
1066 | ||
1067 | memcpy(&res->dev_lun.scsi_lun, &cfgtew->u.cfgte64->lun, | |
1068 | sizeof(res->dev_lun.scsi_lun)); | |
1069 | } else if (res->type == IPR_RES_TYPE_IOAFP) { | |
1070 | res->bus = IPR_IOAFP_VIRTUAL_BUS; | |
1071 | res->target = 0; | |
1072 | } else if (res->type == IPR_RES_TYPE_ARRAY) { | |
1073 | res->bus = IPR_ARRAY_VIRTUAL_BUS; | |
1074 | res->target = find_first_zero_bit(ioa_cfg->array_ids, | |
1075 | ioa_cfg->max_devs_supported); | |
1076 | set_bit(res->target, ioa_cfg->array_ids); | |
1077 | } else if (res->type == IPR_RES_TYPE_VOLUME_SET) { | |
1078 | res->bus = IPR_VSET_VIRTUAL_BUS; | |
1079 | res->target = find_first_zero_bit(ioa_cfg->vset_ids, | |
1080 | ioa_cfg->max_devs_supported); | |
1081 | set_bit(res->target, ioa_cfg->vset_ids); | |
1082 | } else { | |
1083 | res->target = find_first_zero_bit(ioa_cfg->target_ids, | |
1084 | ioa_cfg->max_devs_supported); | |
1085 | set_bit(res->target, ioa_cfg->target_ids); | |
1086 | } | |
1087 | } else { | |
1088 | proto = cfgtew->u.cfgte->proto; | |
1089 | res->qmodel = IPR_QUEUEING_MODEL(res); | |
1090 | res->flags = cfgtew->u.cfgte->flags; | |
1091 | if (res->flags & IPR_IS_IOA_RESOURCE) | |
1092 | res->type = IPR_RES_TYPE_IOAFP; | |
1093 | else | |
1094 | res->type = cfgtew->u.cfgte->rsvd_subtype & 0x0f; | |
1095 | ||
1096 | res->bus = cfgtew->u.cfgte->res_addr.bus; | |
1097 | res->target = cfgtew->u.cfgte->res_addr.target; | |
1098 | res->lun = cfgtew->u.cfgte->res_addr.lun; | |
46d74563 | 1099 | res->lun_wwn = get_unaligned_be64(cfgtew->u.cfgte->lun_wwn); |
3e7ebdfa WB |
1100 | } |
1101 | ||
1102 | ipr_update_ata_class(res, proto); | |
1103 | } | |
1104 | ||
1105 | /** | |
1106 | * ipr_is_same_device - Determine if two devices are the same. | |
1107 | * @res: resource entry struct | |
1108 | * @cfgtew: config table entry wrapper struct | |
1109 | * | |
1110 | * Return value: | |
1111 | * 1 if the devices are the same / 0 otherwise | |
1112 | **/ | |
1113 | static int ipr_is_same_device(struct ipr_resource_entry *res, | |
1114 | struct ipr_config_table_entry_wrapper *cfgtew) | |
1115 | { | |
1116 | if (res->ioa_cfg->sis64) { | |
1117 | if (!memcmp(&res->dev_id, &cfgtew->u.cfgte64->dev_id, | |
1118 | sizeof(cfgtew->u.cfgte64->dev_id)) && | |
1119 | !memcmp(&res->lun, &cfgtew->u.cfgte64->lun, | |
1120 | sizeof(cfgtew->u.cfgte64->lun))) { | |
1121 | return 1; | |
1122 | } | |
1123 | } else { | |
1124 | if (res->bus == cfgtew->u.cfgte->res_addr.bus && | |
1125 | res->target == cfgtew->u.cfgte->res_addr.target && | |
1126 | res->lun == cfgtew->u.cfgte->res_addr.lun) | |
1127 | return 1; | |
1128 | } | |
1129 | ||
1130 | return 0; | |
1131 | } | |
1132 | ||
1133 | /** | |
5adcbeb3 | 1134 | * ipr_format_res_path - Format the resource path for printing. |
3e7ebdfa WB |
1135 | * @res_path: resource path |
1136 | * @buf: buffer | |
1137 | * | |
1138 | * Return value: | |
1139 | * pointer to buffer | |
1140 | **/ | |
5adcbeb3 | 1141 | static char *ipr_format_res_path(u8 *res_path, char *buffer, int len) |
3e7ebdfa WB |
1142 | { |
1143 | int i; | |
5adcbeb3 | 1144 | char *p = buffer; |
3e7ebdfa | 1145 | |
46d74563 | 1146 | *p = '\0'; |
5adcbeb3 WB |
1147 | p += snprintf(p, buffer + len - p, "%02X", res_path[0]); |
1148 | for (i = 1; res_path[i] != 0xff && ((i * 3) < len); i++) | |
1149 | p += snprintf(p, buffer + len - p, "-%02X", res_path[i]); | |
3e7ebdfa WB |
1150 | |
1151 | return buffer; | |
1152 | } | |
1153 | ||
1154 | /** | |
1155 | * ipr_update_res_entry - Update the resource entry. | |
1156 | * @res: resource entry struct | |
1157 | * @cfgtew: config table entry wrapper struct | |
1158 | * | |
1159 | * Return value: | |
1160 | * none | |
1161 | **/ | |
1162 | static void ipr_update_res_entry(struct ipr_resource_entry *res, | |
1163 | struct ipr_config_table_entry_wrapper *cfgtew) | |
1164 | { | |
1165 | char buffer[IPR_MAX_RES_PATH_LENGTH]; | |
1166 | unsigned int proto; | |
1167 | int new_path = 0; | |
1168 | ||
1169 | if (res->ioa_cfg->sis64) { | |
1170 | res->flags = cfgtew->u.cfgte64->flags; | |
1171 | res->res_flags = cfgtew->u.cfgte64->res_flags; | |
75576bb9 | 1172 | res->type = cfgtew->u.cfgte64->res_type; |
3e7ebdfa WB |
1173 | |
1174 | memcpy(&res->std_inq_data, &cfgtew->u.cfgte64->std_inq_data, | |
1175 | sizeof(struct ipr_std_inq_data)); | |
1176 | ||
1177 | res->qmodel = IPR_QUEUEING_MODEL64(res); | |
1178 | proto = cfgtew->u.cfgte64->proto; | |
1179 | res->res_handle = cfgtew->u.cfgte64->res_handle; | |
1180 | res->dev_id = cfgtew->u.cfgte64->dev_id; | |
1181 | ||
1182 | memcpy(&res->dev_lun.scsi_lun, &cfgtew->u.cfgte64->lun, | |
1183 | sizeof(res->dev_lun.scsi_lun)); | |
1184 | ||
1185 | if (memcmp(res->res_path, &cfgtew->u.cfgte64->res_path, | |
1186 | sizeof(res->res_path))) { | |
1187 | memcpy(res->res_path, &cfgtew->u.cfgte64->res_path, | |
1188 | sizeof(res->res_path)); | |
1189 | new_path = 1; | |
1190 | } | |
1191 | ||
1192 | if (res->sdev && new_path) | |
1193 | sdev_printk(KERN_INFO, res->sdev, "Resource path: %s\n", | |
5adcbeb3 WB |
1194 | ipr_format_res_path(res->res_path, buffer, |
1195 | sizeof(buffer))); | |
3e7ebdfa WB |
1196 | } else { |
1197 | res->flags = cfgtew->u.cfgte->flags; | |
1198 | if (res->flags & IPR_IS_IOA_RESOURCE) | |
1199 | res->type = IPR_RES_TYPE_IOAFP; | |
1200 | else | |
1201 | res->type = cfgtew->u.cfgte->rsvd_subtype & 0x0f; | |
1202 | ||
1203 | memcpy(&res->std_inq_data, &cfgtew->u.cfgte->std_inq_data, | |
1204 | sizeof(struct ipr_std_inq_data)); | |
1205 | ||
1206 | res->qmodel = IPR_QUEUEING_MODEL(res); | |
1207 | proto = cfgtew->u.cfgte->proto; | |
1208 | res->res_handle = cfgtew->u.cfgte->res_handle; | |
1209 | } | |
1210 | ||
1211 | ipr_update_ata_class(res, proto); | |
1212 | } | |
1213 | ||
1214 | /** | |
1215 | * ipr_clear_res_target - Clear the bit in the bit map representing the target | |
1216 | * for the resource. | |
1217 | * @res: resource entry struct | |
1218 | * @cfgtew: config table entry wrapper struct | |
1219 | * | |
1220 | * Return value: | |
1221 | * none | |
1222 | **/ | |
1223 | static void ipr_clear_res_target(struct ipr_resource_entry *res) | |
1224 | { | |
1225 | struct ipr_resource_entry *gscsi_res = NULL; | |
1226 | struct ipr_ioa_cfg *ioa_cfg = res->ioa_cfg; | |
1227 | ||
1228 | if (!ioa_cfg->sis64) | |
1229 | return; | |
1230 | ||
1231 | if (res->bus == IPR_ARRAY_VIRTUAL_BUS) | |
1232 | clear_bit(res->target, ioa_cfg->array_ids); | |
1233 | else if (res->bus == IPR_VSET_VIRTUAL_BUS) | |
1234 | clear_bit(res->target, ioa_cfg->vset_ids); | |
1235 | else if (res->bus == 0 && res->type == IPR_RES_TYPE_GENERIC_SCSI) { | |
1236 | list_for_each_entry(gscsi_res, &ioa_cfg->used_res_q, queue) | |
1237 | if (gscsi_res->dev_id == res->dev_id && gscsi_res != res) | |
1238 | return; | |
1239 | clear_bit(res->target, ioa_cfg->target_ids); | |
1240 | ||
1241 | } else if (res->bus == 0) | |
1242 | clear_bit(res->target, ioa_cfg->target_ids); | |
1da177e4 LT |
1243 | } |
1244 | ||
1245 | /** | |
1246 | * ipr_handle_config_change - Handle a config change from the adapter | |
1247 | * @ioa_cfg: ioa config struct | |
1248 | * @hostrcb: hostrcb | |
1249 | * | |
1250 | * Return value: | |
1251 | * none | |
1252 | **/ | |
1253 | static void ipr_handle_config_change(struct ipr_ioa_cfg *ioa_cfg, | |
3e7ebdfa | 1254 | struct ipr_hostrcb *hostrcb) |
1da177e4 LT |
1255 | { |
1256 | struct ipr_resource_entry *res = NULL; | |
3e7ebdfa WB |
1257 | struct ipr_config_table_entry_wrapper cfgtew; |
1258 | __be32 cc_res_handle; | |
1259 | ||
1da177e4 LT |
1260 | u32 is_ndn = 1; |
1261 | ||
3e7ebdfa WB |
1262 | if (ioa_cfg->sis64) { |
1263 | cfgtew.u.cfgte64 = &hostrcb->hcam.u.ccn.u.cfgte64; | |
1264 | cc_res_handle = cfgtew.u.cfgte64->res_handle; | |
1265 | } else { | |
1266 | cfgtew.u.cfgte = &hostrcb->hcam.u.ccn.u.cfgte; | |
1267 | cc_res_handle = cfgtew.u.cfgte->res_handle; | |
1268 | } | |
1da177e4 LT |
1269 | |
1270 | list_for_each_entry(res, &ioa_cfg->used_res_q, queue) { | |
3e7ebdfa | 1271 | if (res->res_handle == cc_res_handle) { |
1da177e4 LT |
1272 | is_ndn = 0; |
1273 | break; | |
1274 | } | |
1275 | } | |
1276 | ||
1277 | if (is_ndn) { | |
1278 | if (list_empty(&ioa_cfg->free_res_q)) { | |
1279 | ipr_send_hcam(ioa_cfg, | |
1280 | IPR_HCAM_CDB_OP_CODE_CONFIG_CHANGE, | |
1281 | hostrcb); | |
1282 | return; | |
1283 | } | |
1284 | ||
1285 | res = list_entry(ioa_cfg->free_res_q.next, | |
1286 | struct ipr_resource_entry, queue); | |
1287 | ||
1288 | list_del(&res->queue); | |
3e7ebdfa | 1289 | ipr_init_res_entry(res, &cfgtew); |
1da177e4 LT |
1290 | list_add_tail(&res->queue, &ioa_cfg->used_res_q); |
1291 | } | |
1292 | ||
3e7ebdfa | 1293 | ipr_update_res_entry(res, &cfgtew); |
1da177e4 LT |
1294 | |
1295 | if (hostrcb->hcam.notify_type == IPR_HOST_RCB_NOTIF_TYPE_REM_ENTRY) { | |
1296 | if (res->sdev) { | |
1da177e4 | 1297 | res->del_from_ml = 1; |
3e7ebdfa | 1298 | res->res_handle = IPR_INVALID_RES_HANDLE; |
1da177e4 LT |
1299 | if (ioa_cfg->allow_ml_add_del) |
1300 | schedule_work(&ioa_cfg->work_q); | |
3e7ebdfa WB |
1301 | } else { |
1302 | ipr_clear_res_target(res); | |
1da177e4 | 1303 | list_move_tail(&res->queue, &ioa_cfg->free_res_q); |
3e7ebdfa | 1304 | } |
1da177e4 LT |
1305 | } else if (!res->sdev) { |
1306 | res->add_to_ml = 1; | |
1307 | if (ioa_cfg->allow_ml_add_del) | |
1308 | schedule_work(&ioa_cfg->work_q); | |
1309 | } | |
1310 | ||
1311 | ipr_send_hcam(ioa_cfg, IPR_HCAM_CDB_OP_CODE_CONFIG_CHANGE, hostrcb); | |
1312 | } | |
1313 | ||
1314 | /** | |
1315 | * ipr_process_ccn - Op done function for a CCN. | |
1316 | * @ipr_cmd: ipr command struct | |
1317 | * | |
1318 | * This function is the op done function for a configuration | |
1319 | * change notification host controlled async from the adapter. | |
1320 | * | |
1321 | * Return value: | |
1322 | * none | |
1323 | **/ | |
1324 | static void ipr_process_ccn(struct ipr_cmnd *ipr_cmd) | |
1325 | { | |
1326 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; | |
1327 | struct ipr_hostrcb *hostrcb = ipr_cmd->u.hostrcb; | |
96d21f00 | 1328 | u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc); |
1da177e4 LT |
1329 | |
1330 | list_del(&hostrcb->queue); | |
1331 | list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q); | |
1332 | ||
1333 | if (ioasc) { | |
1334 | if (ioasc != IPR_IOASC_IOA_WAS_RESET) | |
1335 | dev_err(&ioa_cfg->pdev->dev, | |
1336 | "Host RCB failed with IOASC: 0x%08X\n", ioasc); | |
1337 | ||
1338 | ipr_send_hcam(ioa_cfg, IPR_HCAM_CDB_OP_CODE_CONFIG_CHANGE, hostrcb); | |
1339 | } else { | |
1340 | ipr_handle_config_change(ioa_cfg, hostrcb); | |
1341 | } | |
1342 | } | |
1343 | ||
8cf093e2 BK |
1344 | /** |
1345 | * strip_and_pad_whitespace - Strip and pad trailing whitespace. | |
1346 | * @i: index into buffer | |
1347 | * @buf: string to modify | |
1348 | * | |
1349 | * This function will strip all trailing whitespace, pad the end | |
1350 | * of the string with a single space, and NULL terminate the string. | |
1351 | * | |
1352 | * Return value: | |
1353 | * new length of string | |
1354 | **/ | |
1355 | static int strip_and_pad_whitespace(int i, char *buf) | |
1356 | { | |
1357 | while (i && buf[i] == ' ') | |
1358 | i--; | |
1359 | buf[i+1] = ' '; | |
1360 | buf[i+2] = '\0'; | |
1361 | return i + 2; | |
1362 | } | |
1363 | ||
1364 | /** | |
1365 | * ipr_log_vpd_compact - Log the passed extended VPD compactly. | |
1366 | * @prefix: string to print at start of printk | |
1367 | * @hostrcb: hostrcb pointer | |
1368 | * @vpd: vendor/product id/sn struct | |
1369 | * | |
1370 | * Return value: | |
1371 | * none | |
1372 | **/ | |
1373 | static void ipr_log_vpd_compact(char *prefix, struct ipr_hostrcb *hostrcb, | |
1374 | struct ipr_vpd *vpd) | |
1375 | { | |
1376 | char buffer[IPR_VENDOR_ID_LEN + IPR_PROD_ID_LEN + IPR_SERIAL_NUM_LEN + 3]; | |
1377 | int i = 0; | |
1378 | ||
1379 | memcpy(buffer, vpd->vpids.vendor_id, IPR_VENDOR_ID_LEN); | |
1380 | i = strip_and_pad_whitespace(IPR_VENDOR_ID_LEN - 1, buffer); | |
1381 | ||
1382 | memcpy(&buffer[i], vpd->vpids.product_id, IPR_PROD_ID_LEN); | |
1383 | i = strip_and_pad_whitespace(i + IPR_PROD_ID_LEN - 1, buffer); | |
1384 | ||
1385 | memcpy(&buffer[i], vpd->sn, IPR_SERIAL_NUM_LEN); | |
1386 | buffer[IPR_SERIAL_NUM_LEN + i] = '\0'; | |
1387 | ||
1388 | ipr_hcam_err(hostrcb, "%s VPID/SN: %s\n", prefix, buffer); | |
1389 | } | |
1390 | ||
1da177e4 LT |
1391 | /** |
1392 | * ipr_log_vpd - Log the passed VPD to the error log. | |
cfc32139 | 1393 | * @vpd: vendor/product id/sn struct |
1da177e4 LT |
1394 | * |
1395 | * Return value: | |
1396 | * none | |
1397 | **/ | |
cfc32139 | 1398 | static void ipr_log_vpd(struct ipr_vpd *vpd) |
1da177e4 LT |
1399 | { |
1400 | char buffer[IPR_VENDOR_ID_LEN + IPR_PROD_ID_LEN | |
1401 | + IPR_SERIAL_NUM_LEN]; | |
1402 | ||
cfc32139 | 1403 | memcpy(buffer, vpd->vpids.vendor_id, IPR_VENDOR_ID_LEN); |
1404 | memcpy(buffer + IPR_VENDOR_ID_LEN, vpd->vpids.product_id, | |
1da177e4 LT |
1405 | IPR_PROD_ID_LEN); |
1406 | buffer[IPR_VENDOR_ID_LEN + IPR_PROD_ID_LEN] = '\0'; | |
1407 | ipr_err("Vendor/Product ID: %s\n", buffer); | |
1408 | ||
cfc32139 | 1409 | memcpy(buffer, vpd->sn, IPR_SERIAL_NUM_LEN); |
1da177e4 LT |
1410 | buffer[IPR_SERIAL_NUM_LEN] = '\0'; |
1411 | ipr_err(" Serial Number: %s\n", buffer); | |
1412 | } | |
1413 | ||
8cf093e2 BK |
1414 | /** |
1415 | * ipr_log_ext_vpd_compact - Log the passed extended VPD compactly. | |
1416 | * @prefix: string to print at start of printk | |
1417 | * @hostrcb: hostrcb pointer | |
1418 | * @vpd: vendor/product id/sn/wwn struct | |
1419 | * | |
1420 | * Return value: | |
1421 | * none | |
1422 | **/ | |
1423 | static void ipr_log_ext_vpd_compact(char *prefix, struct ipr_hostrcb *hostrcb, | |
1424 | struct ipr_ext_vpd *vpd) | |
1425 | { | |
1426 | ipr_log_vpd_compact(prefix, hostrcb, &vpd->vpd); | |
1427 | ipr_hcam_err(hostrcb, "%s WWN: %08X%08X\n", prefix, | |
1428 | be32_to_cpu(vpd->wwid[0]), be32_to_cpu(vpd->wwid[1])); | |
1429 | } | |
1430 | ||
ee0f05b8 | 1431 | /** |
1432 | * ipr_log_ext_vpd - Log the passed extended VPD to the error log. | |
1433 | * @vpd: vendor/product id/sn/wwn struct | |
1434 | * | |
1435 | * Return value: | |
1436 | * none | |
1437 | **/ | |
1438 | static void ipr_log_ext_vpd(struct ipr_ext_vpd *vpd) | |
1439 | { | |
1440 | ipr_log_vpd(&vpd->vpd); | |
1441 | ipr_err(" WWN: %08X%08X\n", be32_to_cpu(vpd->wwid[0]), | |
1442 | be32_to_cpu(vpd->wwid[1])); | |
1443 | } | |
1444 | ||
1445 | /** | |
1446 | * ipr_log_enhanced_cache_error - Log a cache error. | |
1447 | * @ioa_cfg: ioa config struct | |
1448 | * @hostrcb: hostrcb struct | |
1449 | * | |
1450 | * Return value: | |
1451 | * none | |
1452 | **/ | |
1453 | static void ipr_log_enhanced_cache_error(struct ipr_ioa_cfg *ioa_cfg, | |
1454 | struct ipr_hostrcb *hostrcb) | |
1455 | { | |
4565e370 WB |
1456 | struct ipr_hostrcb_type_12_error *error; |
1457 | ||
1458 | if (ioa_cfg->sis64) | |
1459 | error = &hostrcb->hcam.u.error64.u.type_12_error; | |
1460 | else | |
1461 | error = &hostrcb->hcam.u.error.u.type_12_error; | |
ee0f05b8 | 1462 | |
1463 | ipr_err("-----Current Configuration-----\n"); | |
1464 | ipr_err("Cache Directory Card Information:\n"); | |
1465 | ipr_log_ext_vpd(&error->ioa_vpd); | |
1466 | ipr_err("Adapter Card Information:\n"); | |
1467 | ipr_log_ext_vpd(&error->cfc_vpd); | |
1468 | ||
1469 | ipr_err("-----Expected Configuration-----\n"); | |
1470 | ipr_err("Cache Directory Card Information:\n"); | |
1471 | ipr_log_ext_vpd(&error->ioa_last_attached_to_cfc_vpd); | |
1472 | ipr_err("Adapter Card Information:\n"); | |
1473 | ipr_log_ext_vpd(&error->cfc_last_attached_to_ioa_vpd); | |
1474 | ||
1475 | ipr_err("Additional IOA Data: %08X %08X %08X\n", | |
1476 | be32_to_cpu(error->ioa_data[0]), | |
1477 | be32_to_cpu(error->ioa_data[1]), | |
1478 | be32_to_cpu(error->ioa_data[2])); | |
1479 | } | |
1480 | ||
1da177e4 LT |
1481 | /** |
1482 | * ipr_log_cache_error - Log a cache error. | |
1483 | * @ioa_cfg: ioa config struct | |
1484 | * @hostrcb: hostrcb struct | |
1485 | * | |
1486 | * Return value: | |
1487 | * none | |
1488 | **/ | |
1489 | static void ipr_log_cache_error(struct ipr_ioa_cfg *ioa_cfg, | |
1490 | struct ipr_hostrcb *hostrcb) | |
1491 | { | |
1492 | struct ipr_hostrcb_type_02_error *error = | |
1493 | &hostrcb->hcam.u.error.u.type_02_error; | |
1494 | ||
1495 | ipr_err("-----Current Configuration-----\n"); | |
1496 | ipr_err("Cache Directory Card Information:\n"); | |
cfc32139 | 1497 | ipr_log_vpd(&error->ioa_vpd); |
1da177e4 | 1498 | ipr_err("Adapter Card Information:\n"); |
cfc32139 | 1499 | ipr_log_vpd(&error->cfc_vpd); |
1da177e4 LT |
1500 | |
1501 | ipr_err("-----Expected Configuration-----\n"); | |
1502 | ipr_err("Cache Directory Card Information:\n"); | |
cfc32139 | 1503 | ipr_log_vpd(&error->ioa_last_attached_to_cfc_vpd); |
1da177e4 | 1504 | ipr_err("Adapter Card Information:\n"); |
cfc32139 | 1505 | ipr_log_vpd(&error->cfc_last_attached_to_ioa_vpd); |
1da177e4 LT |
1506 | |
1507 | ipr_err("Additional IOA Data: %08X %08X %08X\n", | |
1508 | be32_to_cpu(error->ioa_data[0]), | |
1509 | be32_to_cpu(error->ioa_data[1]), | |
1510 | be32_to_cpu(error->ioa_data[2])); | |
1511 | } | |
1512 | ||
ee0f05b8 | 1513 | /** |
1514 | * ipr_log_enhanced_config_error - Log a configuration error. | |
1515 | * @ioa_cfg: ioa config struct | |
1516 | * @hostrcb: hostrcb struct | |
1517 | * | |
1518 | * Return value: | |
1519 | * none | |
1520 | **/ | |
1521 | static void ipr_log_enhanced_config_error(struct ipr_ioa_cfg *ioa_cfg, | |
1522 | struct ipr_hostrcb *hostrcb) | |
1523 | { | |
1524 | int errors_logged, i; | |
1525 | struct ipr_hostrcb_device_data_entry_enhanced *dev_entry; | |
1526 | struct ipr_hostrcb_type_13_error *error; | |
1527 | ||
1528 | error = &hostrcb->hcam.u.error.u.type_13_error; | |
1529 | errors_logged = be32_to_cpu(error->errors_logged); | |
1530 | ||
1531 | ipr_err("Device Errors Detected/Logged: %d/%d\n", | |
1532 | be32_to_cpu(error->errors_detected), errors_logged); | |
1533 | ||
1534 | dev_entry = error->dev; | |
1535 | ||
1536 | for (i = 0; i < errors_logged; i++, dev_entry++) { | |
1537 | ipr_err_separator; | |
1538 | ||
1539 | ipr_phys_res_err(ioa_cfg, dev_entry->dev_res_addr, "Device %d", i + 1); | |
1540 | ipr_log_ext_vpd(&dev_entry->vpd); | |
1541 | ||
1542 | ipr_err("-----New Device Information-----\n"); | |
1543 | ipr_log_ext_vpd(&dev_entry->new_vpd); | |
1544 | ||
1545 | ipr_err("Cache Directory Card Information:\n"); | |
1546 | ipr_log_ext_vpd(&dev_entry->ioa_last_with_dev_vpd); | |
1547 | ||
1548 | ipr_err("Adapter Card Information:\n"); | |
1549 | ipr_log_ext_vpd(&dev_entry->cfc_last_with_dev_vpd); | |
1550 | } | |
1551 | } | |
1552 | ||
4565e370 WB |
1553 | /** |
1554 | * ipr_log_sis64_config_error - Log a device error. | |
1555 | * @ioa_cfg: ioa config struct | |
1556 | * @hostrcb: hostrcb struct | |
1557 | * | |
1558 | * Return value: | |
1559 | * none | |
1560 | **/ | |
1561 | static void ipr_log_sis64_config_error(struct ipr_ioa_cfg *ioa_cfg, | |
1562 | struct ipr_hostrcb *hostrcb) | |
1563 | { | |
1564 | int errors_logged, i; | |
1565 | struct ipr_hostrcb64_device_data_entry_enhanced *dev_entry; | |
1566 | struct ipr_hostrcb_type_23_error *error; | |
1567 | char buffer[IPR_MAX_RES_PATH_LENGTH]; | |
1568 | ||
1569 | error = &hostrcb->hcam.u.error64.u.type_23_error; | |
1570 | errors_logged = be32_to_cpu(error->errors_logged); | |
1571 | ||
1572 | ipr_err("Device Errors Detected/Logged: %d/%d\n", | |
1573 | be32_to_cpu(error->errors_detected), errors_logged); | |
1574 | ||
1575 | dev_entry = error->dev; | |
1576 | ||
1577 | for (i = 0; i < errors_logged; i++, dev_entry++) { | |
1578 | ipr_err_separator; | |
1579 | ||
1580 | ipr_err("Device %d : %s", i + 1, | |
5adcbeb3 WB |
1581 | ipr_format_res_path(dev_entry->res_path, buffer, |
1582 | sizeof(buffer))); | |
4565e370 WB |
1583 | ipr_log_ext_vpd(&dev_entry->vpd); |
1584 | ||
1585 | ipr_err("-----New Device Information-----\n"); | |
1586 | ipr_log_ext_vpd(&dev_entry->new_vpd); | |
1587 | ||
1588 | ipr_err("Cache Directory Card Information:\n"); | |
1589 | ipr_log_ext_vpd(&dev_entry->ioa_last_with_dev_vpd); | |
1590 | ||
1591 | ipr_err("Adapter Card Information:\n"); | |
1592 | ipr_log_ext_vpd(&dev_entry->cfc_last_with_dev_vpd); | |
1593 | } | |
1594 | } | |
1595 | ||
1da177e4 LT |
1596 | /** |
1597 | * ipr_log_config_error - Log a configuration error. | |
1598 | * @ioa_cfg: ioa config struct | |
1599 | * @hostrcb: hostrcb struct | |
1600 | * | |
1601 | * Return value: | |
1602 | * none | |
1603 | **/ | |
1604 | static void ipr_log_config_error(struct ipr_ioa_cfg *ioa_cfg, | |
1605 | struct ipr_hostrcb *hostrcb) | |
1606 | { | |
1607 | int errors_logged, i; | |
1608 | struct ipr_hostrcb_device_data_entry *dev_entry; | |
1609 | struct ipr_hostrcb_type_03_error *error; | |
1610 | ||
1611 | error = &hostrcb->hcam.u.error.u.type_03_error; | |
1612 | errors_logged = be32_to_cpu(error->errors_logged); | |
1613 | ||
1614 | ipr_err("Device Errors Detected/Logged: %d/%d\n", | |
1615 | be32_to_cpu(error->errors_detected), errors_logged); | |
1616 | ||
cfc32139 | 1617 | dev_entry = error->dev; |
1da177e4 LT |
1618 | |
1619 | for (i = 0; i < errors_logged; i++, dev_entry++) { | |
1620 | ipr_err_separator; | |
1621 | ||
fa15b1f6 | 1622 | ipr_phys_res_err(ioa_cfg, dev_entry->dev_res_addr, "Device %d", i + 1); |
cfc32139 | 1623 | ipr_log_vpd(&dev_entry->vpd); |
1da177e4 LT |
1624 | |
1625 | ipr_err("-----New Device Information-----\n"); | |
cfc32139 | 1626 | ipr_log_vpd(&dev_entry->new_vpd); |
1da177e4 LT |
1627 | |
1628 | ipr_err("Cache Directory Card Information:\n"); | |
cfc32139 | 1629 | ipr_log_vpd(&dev_entry->ioa_last_with_dev_vpd); |
1da177e4 LT |
1630 | |
1631 | ipr_err("Adapter Card Information:\n"); | |
cfc32139 | 1632 | ipr_log_vpd(&dev_entry->cfc_last_with_dev_vpd); |
1da177e4 LT |
1633 | |
1634 | ipr_err("Additional IOA Data: %08X %08X %08X %08X %08X\n", | |
1635 | be32_to_cpu(dev_entry->ioa_data[0]), | |
1636 | be32_to_cpu(dev_entry->ioa_data[1]), | |
1637 | be32_to_cpu(dev_entry->ioa_data[2]), | |
1638 | be32_to_cpu(dev_entry->ioa_data[3]), | |
1639 | be32_to_cpu(dev_entry->ioa_data[4])); | |
1640 | } | |
1641 | } | |
1642 | ||
ee0f05b8 | 1643 | /** |
1644 | * ipr_log_enhanced_array_error - Log an array configuration error. | |
1645 | * @ioa_cfg: ioa config struct | |
1646 | * @hostrcb: hostrcb struct | |
1647 | * | |
1648 | * Return value: | |
1649 | * none | |
1650 | **/ | |
1651 | static void ipr_log_enhanced_array_error(struct ipr_ioa_cfg *ioa_cfg, | |
1652 | struct ipr_hostrcb *hostrcb) | |
1653 | { | |
1654 | int i, num_entries; | |
1655 | struct ipr_hostrcb_type_14_error *error; | |
1656 | struct ipr_hostrcb_array_data_entry_enhanced *array_entry; | |
1657 | const u8 zero_sn[IPR_SERIAL_NUM_LEN] = { [0 ... IPR_SERIAL_NUM_LEN-1] = '0' }; | |
1658 | ||
1659 | error = &hostrcb->hcam.u.error.u.type_14_error; | |
1660 | ||
1661 | ipr_err_separator; | |
1662 | ||
1663 | ipr_err("RAID %s Array Configuration: %d:%d:%d:%d\n", | |
1664 | error->protection_level, | |
1665 | ioa_cfg->host->host_no, | |
1666 | error->last_func_vset_res_addr.bus, | |
1667 | error->last_func_vset_res_addr.target, | |
1668 | error->last_func_vset_res_addr.lun); | |
1669 | ||
1670 | ipr_err_separator; | |
1671 | ||
1672 | array_entry = error->array_member; | |
1673 | num_entries = min_t(u32, be32_to_cpu(error->num_entries), | |
7262026f | 1674 | ARRAY_SIZE(error->array_member)); |
ee0f05b8 | 1675 | |
1676 | for (i = 0; i < num_entries; i++, array_entry++) { | |
1677 | if (!memcmp(array_entry->vpd.vpd.sn, zero_sn, IPR_SERIAL_NUM_LEN)) | |
1678 | continue; | |
1679 | ||
1680 | if (be32_to_cpu(error->exposed_mode_adn) == i) | |
1681 | ipr_err("Exposed Array Member %d:\n", i); | |
1682 | else | |
1683 | ipr_err("Array Member %d:\n", i); | |
1684 | ||
1685 | ipr_log_ext_vpd(&array_entry->vpd); | |
1686 | ipr_phys_res_err(ioa_cfg, array_entry->dev_res_addr, "Current Location"); | |
1687 | ipr_phys_res_err(ioa_cfg, array_entry->expected_dev_res_addr, | |
1688 | "Expected Location"); | |
1689 | ||
1690 | ipr_err_separator; | |
1691 | } | |
1692 | } | |
1693 | ||
1da177e4 LT |
1694 | /** |
1695 | * ipr_log_array_error - Log an array configuration error. | |
1696 | * @ioa_cfg: ioa config struct | |
1697 | * @hostrcb: hostrcb struct | |
1698 | * | |
1699 | * Return value: | |
1700 | * none | |
1701 | **/ | |
1702 | static void ipr_log_array_error(struct ipr_ioa_cfg *ioa_cfg, | |
1703 | struct ipr_hostrcb *hostrcb) | |
1704 | { | |
1705 | int i; | |
1706 | struct ipr_hostrcb_type_04_error *error; | |
1707 | struct ipr_hostrcb_array_data_entry *array_entry; | |
1708 | const u8 zero_sn[IPR_SERIAL_NUM_LEN] = { [0 ... IPR_SERIAL_NUM_LEN-1] = '0' }; | |
1709 | ||
1710 | error = &hostrcb->hcam.u.error.u.type_04_error; | |
1711 | ||
1712 | ipr_err_separator; | |
1713 | ||
1714 | ipr_err("RAID %s Array Configuration: %d:%d:%d:%d\n", | |
1715 | error->protection_level, | |
1716 | ioa_cfg->host->host_no, | |
1717 | error->last_func_vset_res_addr.bus, | |
1718 | error->last_func_vset_res_addr.target, | |
1719 | error->last_func_vset_res_addr.lun); | |
1720 | ||
1721 | ipr_err_separator; | |
1722 | ||
1723 | array_entry = error->array_member; | |
1724 | ||
1725 | for (i = 0; i < 18; i++) { | |
cfc32139 | 1726 | if (!memcmp(array_entry->vpd.sn, zero_sn, IPR_SERIAL_NUM_LEN)) |
1da177e4 LT |
1727 | continue; |
1728 | ||
fa15b1f6 | 1729 | if (be32_to_cpu(error->exposed_mode_adn) == i) |
1da177e4 | 1730 | ipr_err("Exposed Array Member %d:\n", i); |
fa15b1f6 | 1731 | else |
1da177e4 | 1732 | ipr_err("Array Member %d:\n", i); |
1da177e4 | 1733 | |
cfc32139 | 1734 | ipr_log_vpd(&array_entry->vpd); |
1da177e4 | 1735 | |
fa15b1f6 | 1736 | ipr_phys_res_err(ioa_cfg, array_entry->dev_res_addr, "Current Location"); |
1737 | ipr_phys_res_err(ioa_cfg, array_entry->expected_dev_res_addr, | |
1738 | "Expected Location"); | |
1da177e4 LT |
1739 | |
1740 | ipr_err_separator; | |
1741 | ||
1742 | if (i == 9) | |
1743 | array_entry = error->array_member2; | |
1744 | else | |
1745 | array_entry++; | |
1746 | } | |
1747 | } | |
1748 | ||
1749 | /** | |
b0df54bb | 1750 | * ipr_log_hex_data - Log additional hex IOA error data. |
ac719aba | 1751 | * @ioa_cfg: ioa config struct |
b0df54bb | 1752 | * @data: IOA error data |
1753 | * @len: data length | |
1da177e4 LT |
1754 | * |
1755 | * Return value: | |
1756 | * none | |
1757 | **/ | |
ac719aba | 1758 | static void ipr_log_hex_data(struct ipr_ioa_cfg *ioa_cfg, u32 *data, int len) |
1da177e4 LT |
1759 | { |
1760 | int i; | |
1da177e4 | 1761 | |
b0df54bb | 1762 | if (len == 0) |
1da177e4 LT |
1763 | return; |
1764 | ||
ac719aba BK |
1765 | if (ioa_cfg->log_level <= IPR_DEFAULT_LOG_LEVEL) |
1766 | len = min_t(int, len, IPR_DEFAULT_MAX_ERROR_DUMP); | |
1767 | ||
b0df54bb | 1768 | for (i = 0; i < len / 4; i += 4) { |
1da177e4 | 1769 | ipr_err("%08X: %08X %08X %08X %08X\n", i*4, |
b0df54bb | 1770 | be32_to_cpu(data[i]), |
1771 | be32_to_cpu(data[i+1]), | |
1772 | be32_to_cpu(data[i+2]), | |
1773 | be32_to_cpu(data[i+3])); | |
1da177e4 LT |
1774 | } |
1775 | } | |
1776 | ||
ee0f05b8 | 1777 | /** |
1778 | * ipr_log_enhanced_dual_ioa_error - Log an enhanced dual adapter error. | |
1779 | * @ioa_cfg: ioa config struct | |
1780 | * @hostrcb: hostrcb struct | |
1781 | * | |
1782 | * Return value: | |
1783 | * none | |
1784 | **/ | |
1785 | static void ipr_log_enhanced_dual_ioa_error(struct ipr_ioa_cfg *ioa_cfg, | |
1786 | struct ipr_hostrcb *hostrcb) | |
1787 | { | |
1788 | struct ipr_hostrcb_type_17_error *error; | |
1789 | ||
4565e370 WB |
1790 | if (ioa_cfg->sis64) |
1791 | error = &hostrcb->hcam.u.error64.u.type_17_error; | |
1792 | else | |
1793 | error = &hostrcb->hcam.u.error.u.type_17_error; | |
1794 | ||
ee0f05b8 | 1795 | error->failure_reason[sizeof(error->failure_reason) - 1] = '\0'; |
ca54cb8c | 1796 | strim(error->failure_reason); |
ee0f05b8 | 1797 | |
8cf093e2 BK |
1798 | ipr_hcam_err(hostrcb, "%s [PRC: %08X]\n", error->failure_reason, |
1799 | be32_to_cpu(hostrcb->hcam.u.error.prc)); | |
1800 | ipr_log_ext_vpd_compact("Remote IOA", hostrcb, &error->vpd); | |
ac719aba | 1801 | ipr_log_hex_data(ioa_cfg, error->data, |
ee0f05b8 | 1802 | be32_to_cpu(hostrcb->hcam.length) - |
1803 | (offsetof(struct ipr_hostrcb_error, u) + | |
1804 | offsetof(struct ipr_hostrcb_type_17_error, data))); | |
1805 | } | |
1806 | ||
b0df54bb | 1807 | /** |
1808 | * ipr_log_dual_ioa_error - Log a dual adapter error. | |
1809 | * @ioa_cfg: ioa config struct | |
1810 | * @hostrcb: hostrcb struct | |
1811 | * | |
1812 | * Return value: | |
1813 | * none | |
1814 | **/ | |
1815 | static void ipr_log_dual_ioa_error(struct ipr_ioa_cfg *ioa_cfg, | |
1816 | struct ipr_hostrcb *hostrcb) | |
1817 | { | |
1818 | struct ipr_hostrcb_type_07_error *error; | |
1819 | ||
1820 | error = &hostrcb->hcam.u.error.u.type_07_error; | |
1821 | error->failure_reason[sizeof(error->failure_reason) - 1] = '\0'; | |
ca54cb8c | 1822 | strim(error->failure_reason); |
b0df54bb | 1823 | |
8cf093e2 BK |
1824 | ipr_hcam_err(hostrcb, "%s [PRC: %08X]\n", error->failure_reason, |
1825 | be32_to_cpu(hostrcb->hcam.u.error.prc)); | |
1826 | ipr_log_vpd_compact("Remote IOA", hostrcb, &error->vpd); | |
ac719aba | 1827 | ipr_log_hex_data(ioa_cfg, error->data, |
b0df54bb | 1828 | be32_to_cpu(hostrcb->hcam.length) - |
1829 | (offsetof(struct ipr_hostrcb_error, u) + | |
1830 | offsetof(struct ipr_hostrcb_type_07_error, data))); | |
1831 | } | |
1832 | ||
49dc6a18 BK |
1833 | static const struct { |
1834 | u8 active; | |
1835 | char *desc; | |
1836 | } path_active_desc[] = { | |
1837 | { IPR_PATH_NO_INFO, "Path" }, | |
1838 | { IPR_PATH_ACTIVE, "Active path" }, | |
1839 | { IPR_PATH_NOT_ACTIVE, "Inactive path" } | |
1840 | }; | |
1841 | ||
1842 | static const struct { | |
1843 | u8 state; | |
1844 | char *desc; | |
1845 | } path_state_desc[] = { | |
1846 | { IPR_PATH_STATE_NO_INFO, "has no path state information available" }, | |
1847 | { IPR_PATH_HEALTHY, "is healthy" }, | |
1848 | { IPR_PATH_DEGRADED, "is degraded" }, | |
1849 | { IPR_PATH_FAILED, "is failed" } | |
1850 | }; | |
1851 | ||
1852 | /** | |
1853 | * ipr_log_fabric_path - Log a fabric path error | |
1854 | * @hostrcb: hostrcb struct | |
1855 | * @fabric: fabric descriptor | |
1856 | * | |
1857 | * Return value: | |
1858 | * none | |
1859 | **/ | |
1860 | static void ipr_log_fabric_path(struct ipr_hostrcb *hostrcb, | |
1861 | struct ipr_hostrcb_fabric_desc *fabric) | |
1862 | { | |
1863 | int i, j; | |
1864 | u8 path_state = fabric->path_state; | |
1865 | u8 active = path_state & IPR_PATH_ACTIVE_MASK; | |
1866 | u8 state = path_state & IPR_PATH_STATE_MASK; | |
1867 | ||
1868 | for (i = 0; i < ARRAY_SIZE(path_active_desc); i++) { | |
1869 | if (path_active_desc[i].active != active) | |
1870 | continue; | |
1871 | ||
1872 | for (j = 0; j < ARRAY_SIZE(path_state_desc); j++) { | |
1873 | if (path_state_desc[j].state != state) | |
1874 | continue; | |
1875 | ||
1876 | if (fabric->cascaded_expander == 0xff && fabric->phy == 0xff) { | |
1877 | ipr_hcam_err(hostrcb, "%s %s: IOA Port=%d\n", | |
1878 | path_active_desc[i].desc, path_state_desc[j].desc, | |
1879 | fabric->ioa_port); | |
1880 | } else if (fabric->cascaded_expander == 0xff) { | |
1881 | ipr_hcam_err(hostrcb, "%s %s: IOA Port=%d, Phy=%d\n", | |
1882 | path_active_desc[i].desc, path_state_desc[j].desc, | |
1883 | fabric->ioa_port, fabric->phy); | |
1884 | } else if (fabric->phy == 0xff) { | |
1885 | ipr_hcam_err(hostrcb, "%s %s: IOA Port=%d, Cascade=%d\n", | |
1886 | path_active_desc[i].desc, path_state_desc[j].desc, | |
1887 | fabric->ioa_port, fabric->cascaded_expander); | |
1888 | } else { | |
1889 | ipr_hcam_err(hostrcb, "%s %s: IOA Port=%d, Cascade=%d, Phy=%d\n", | |
1890 | path_active_desc[i].desc, path_state_desc[j].desc, | |
1891 | fabric->ioa_port, fabric->cascaded_expander, fabric->phy); | |
1892 | } | |
1893 | return; | |
1894 | } | |
1895 | } | |
1896 | ||
1897 | ipr_err("Path state=%02X IOA Port=%d Cascade=%d Phy=%d\n", path_state, | |
1898 | fabric->ioa_port, fabric->cascaded_expander, fabric->phy); | |
1899 | } | |
1900 | ||
4565e370 WB |
1901 | /** |
1902 | * ipr_log64_fabric_path - Log a fabric path error | |
1903 | * @hostrcb: hostrcb struct | |
1904 | * @fabric: fabric descriptor | |
1905 | * | |
1906 | * Return value: | |
1907 | * none | |
1908 | **/ | |
1909 | static void ipr_log64_fabric_path(struct ipr_hostrcb *hostrcb, | |
1910 | struct ipr_hostrcb64_fabric_desc *fabric) | |
1911 | { | |
1912 | int i, j; | |
1913 | u8 path_state = fabric->path_state; | |
1914 | u8 active = path_state & IPR_PATH_ACTIVE_MASK; | |
1915 | u8 state = path_state & IPR_PATH_STATE_MASK; | |
1916 | char buffer[IPR_MAX_RES_PATH_LENGTH]; | |
1917 | ||
1918 | for (i = 0; i < ARRAY_SIZE(path_active_desc); i++) { | |
1919 | if (path_active_desc[i].active != active) | |
1920 | continue; | |
1921 | ||
1922 | for (j = 0; j < ARRAY_SIZE(path_state_desc); j++) { | |
1923 | if (path_state_desc[j].state != state) | |
1924 | continue; | |
1925 | ||
1926 | ipr_hcam_err(hostrcb, "%s %s: Resource Path=%s\n", | |
1927 | path_active_desc[i].desc, path_state_desc[j].desc, | |
5adcbeb3 WB |
1928 | ipr_format_res_path(fabric->res_path, buffer, |
1929 | sizeof(buffer))); | |
4565e370 WB |
1930 | return; |
1931 | } | |
1932 | } | |
1933 | ||
1934 | ipr_err("Path state=%02X Resource Path=%s\n", path_state, | |
5adcbeb3 | 1935 | ipr_format_res_path(fabric->res_path, buffer, sizeof(buffer))); |
4565e370 WB |
1936 | } |
1937 | ||
49dc6a18 BK |
1938 | static const struct { |
1939 | u8 type; | |
1940 | char *desc; | |
1941 | } path_type_desc[] = { | |
1942 | { IPR_PATH_CFG_IOA_PORT, "IOA port" }, | |
1943 | { IPR_PATH_CFG_EXP_PORT, "Expander port" }, | |
1944 | { IPR_PATH_CFG_DEVICE_PORT, "Device port" }, | |
1945 | { IPR_PATH_CFG_DEVICE_LUN, "Device LUN" } | |
1946 | }; | |
1947 | ||
1948 | static const struct { | |
1949 | u8 status; | |
1950 | char *desc; | |
1951 | } path_status_desc[] = { | |
1952 | { IPR_PATH_CFG_NO_PROB, "Functional" }, | |
1953 | { IPR_PATH_CFG_DEGRADED, "Degraded" }, | |
1954 | { IPR_PATH_CFG_FAILED, "Failed" }, | |
1955 | { IPR_PATH_CFG_SUSPECT, "Suspect" }, | |
1956 | { IPR_PATH_NOT_DETECTED, "Missing" }, | |
1957 | { IPR_PATH_INCORRECT_CONN, "Incorrectly connected" } | |
1958 | }; | |
1959 | ||
1960 | static const char *link_rate[] = { | |
1961 | "unknown", | |
1962 | "disabled", | |
1963 | "phy reset problem", | |
1964 | "spinup hold", | |
1965 | "port selector", | |
1966 | "unknown", | |
1967 | "unknown", | |
1968 | "unknown", | |
1969 | "1.5Gbps", | |
1970 | "3.0Gbps", | |
1971 | "unknown", | |
1972 | "unknown", | |
1973 | "unknown", | |
1974 | "unknown", | |
1975 | "unknown", | |
1976 | "unknown" | |
1977 | }; | |
1978 | ||
1979 | /** | |
1980 | * ipr_log_path_elem - Log a fabric path element. | |
1981 | * @hostrcb: hostrcb struct | |
1982 | * @cfg: fabric path element struct | |
1983 | * | |
1984 | * Return value: | |
1985 | * none | |
1986 | **/ | |
1987 | static void ipr_log_path_elem(struct ipr_hostrcb *hostrcb, | |
1988 | struct ipr_hostrcb_config_element *cfg) | |
1989 | { | |
1990 | int i, j; | |
1991 | u8 type = cfg->type_status & IPR_PATH_CFG_TYPE_MASK; | |
1992 | u8 status = cfg->type_status & IPR_PATH_CFG_STATUS_MASK; | |
1993 | ||
1994 | if (type == IPR_PATH_CFG_NOT_EXIST) | |
1995 | return; | |
1996 | ||
1997 | for (i = 0; i < ARRAY_SIZE(path_type_desc); i++) { | |
1998 | if (path_type_desc[i].type != type) | |
1999 | continue; | |
2000 | ||
2001 | for (j = 0; j < ARRAY_SIZE(path_status_desc); j++) { | |
2002 | if (path_status_desc[j].status != status) | |
2003 | continue; | |
2004 | ||
2005 | if (type == IPR_PATH_CFG_IOA_PORT) { | |
2006 | ipr_hcam_err(hostrcb, "%s %s: Phy=%d, Link rate=%s, WWN=%08X%08X\n", | |
2007 | path_status_desc[j].desc, path_type_desc[i].desc, | |
2008 | cfg->phy, link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK], | |
2009 | be32_to_cpu(cfg->wwid[0]), be32_to_cpu(cfg->wwid[1])); | |
2010 | } else { | |
2011 | if (cfg->cascaded_expander == 0xff && cfg->phy == 0xff) { | |
2012 | ipr_hcam_err(hostrcb, "%s %s: Link rate=%s, WWN=%08X%08X\n", | |
2013 | path_status_desc[j].desc, path_type_desc[i].desc, | |
2014 | link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK], | |
2015 | be32_to_cpu(cfg->wwid[0]), be32_to_cpu(cfg->wwid[1])); | |
2016 | } else if (cfg->cascaded_expander == 0xff) { | |
2017 | ipr_hcam_err(hostrcb, "%s %s: Phy=%d, Link rate=%s, " | |
2018 | "WWN=%08X%08X\n", path_status_desc[j].desc, | |
2019 | path_type_desc[i].desc, cfg->phy, | |
2020 | link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK], | |
2021 | be32_to_cpu(cfg->wwid[0]), be32_to_cpu(cfg->wwid[1])); | |
2022 | } else if (cfg->phy == 0xff) { | |
2023 | ipr_hcam_err(hostrcb, "%s %s: Cascade=%d, Link rate=%s, " | |
2024 | "WWN=%08X%08X\n", path_status_desc[j].desc, | |
2025 | path_type_desc[i].desc, cfg->cascaded_expander, | |
2026 | link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK], | |
2027 | be32_to_cpu(cfg->wwid[0]), be32_to_cpu(cfg->wwid[1])); | |
2028 | } else { | |
2029 | ipr_hcam_err(hostrcb, "%s %s: Cascade=%d, Phy=%d, Link rate=%s " | |
2030 | "WWN=%08X%08X\n", path_status_desc[j].desc, | |
2031 | path_type_desc[i].desc, cfg->cascaded_expander, cfg->phy, | |
2032 | link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK], | |
2033 | be32_to_cpu(cfg->wwid[0]), be32_to_cpu(cfg->wwid[1])); | |
2034 | } | |
2035 | } | |
2036 | return; | |
2037 | } | |
2038 | } | |
2039 | ||
2040 | ipr_hcam_err(hostrcb, "Path element=%02X: Cascade=%d Phy=%d Link rate=%s " | |
2041 | "WWN=%08X%08X\n", cfg->type_status, cfg->cascaded_expander, cfg->phy, | |
2042 | link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK], | |
2043 | be32_to_cpu(cfg->wwid[0]), be32_to_cpu(cfg->wwid[1])); | |
2044 | } | |
2045 | ||
4565e370 WB |
2046 | /** |
2047 | * ipr_log64_path_elem - Log a fabric path element. | |
2048 | * @hostrcb: hostrcb struct | |
2049 | * @cfg: fabric path element struct | |
2050 | * | |
2051 | * Return value: | |
2052 | * none | |
2053 | **/ | |
2054 | static void ipr_log64_path_elem(struct ipr_hostrcb *hostrcb, | |
2055 | struct ipr_hostrcb64_config_element *cfg) | |
2056 | { | |
2057 | int i, j; | |
2058 | u8 desc_id = cfg->descriptor_id & IPR_DESCRIPTOR_MASK; | |
2059 | u8 type = cfg->type_status & IPR_PATH_CFG_TYPE_MASK; | |
2060 | u8 status = cfg->type_status & IPR_PATH_CFG_STATUS_MASK; | |
2061 | char buffer[IPR_MAX_RES_PATH_LENGTH]; | |
2062 | ||
2063 | if (type == IPR_PATH_CFG_NOT_EXIST || desc_id != IPR_DESCRIPTOR_SIS64) | |
2064 | return; | |
2065 | ||
2066 | for (i = 0; i < ARRAY_SIZE(path_type_desc); i++) { | |
2067 | if (path_type_desc[i].type != type) | |
2068 | continue; | |
2069 | ||
2070 | for (j = 0; j < ARRAY_SIZE(path_status_desc); j++) { | |
2071 | if (path_status_desc[j].status != status) | |
2072 | continue; | |
2073 | ||
2074 | ipr_hcam_err(hostrcb, "%s %s: Resource Path=%s, Link rate=%s, WWN=%08X%08X\n", | |
2075 | path_status_desc[j].desc, path_type_desc[i].desc, | |
5adcbeb3 WB |
2076 | ipr_format_res_path(cfg->res_path, buffer, |
2077 | sizeof(buffer)), | |
4565e370 WB |
2078 | link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK], |
2079 | be32_to_cpu(cfg->wwid[0]), be32_to_cpu(cfg->wwid[1])); | |
2080 | return; | |
2081 | } | |
2082 | } | |
2083 | ipr_hcam_err(hostrcb, "Path element=%02X: Resource Path=%s, Link rate=%s " | |
2084 | "WWN=%08X%08X\n", cfg->type_status, | |
5adcbeb3 | 2085 | ipr_format_res_path(cfg->res_path, buffer, sizeof(buffer)), |
4565e370 WB |
2086 | link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK], |
2087 | be32_to_cpu(cfg->wwid[0]), be32_to_cpu(cfg->wwid[1])); | |
2088 | } | |
2089 | ||
49dc6a18 BK |
2090 | /** |
2091 | * ipr_log_fabric_error - Log a fabric error. | |
2092 | * @ioa_cfg: ioa config struct | |
2093 | * @hostrcb: hostrcb struct | |
2094 | * | |
2095 | * Return value: | |
2096 | * none | |
2097 | **/ | |
2098 | static void ipr_log_fabric_error(struct ipr_ioa_cfg *ioa_cfg, | |
2099 | struct ipr_hostrcb *hostrcb) | |
2100 | { | |
2101 | struct ipr_hostrcb_type_20_error *error; | |
2102 | struct ipr_hostrcb_fabric_desc *fabric; | |
2103 | struct ipr_hostrcb_config_element *cfg; | |
2104 | int i, add_len; | |
2105 | ||
2106 | error = &hostrcb->hcam.u.error.u.type_20_error; | |
2107 | error->failure_reason[sizeof(error->failure_reason) - 1] = '\0'; | |
2108 | ipr_hcam_err(hostrcb, "%s\n", error->failure_reason); | |
2109 | ||
2110 | add_len = be32_to_cpu(hostrcb->hcam.length) - | |
2111 | (offsetof(struct ipr_hostrcb_error, u) + | |
2112 | offsetof(struct ipr_hostrcb_type_20_error, desc)); | |
2113 | ||
2114 | for (i = 0, fabric = error->desc; i < error->num_entries; i++) { | |
2115 | ipr_log_fabric_path(hostrcb, fabric); | |
2116 | for_each_fabric_cfg(fabric, cfg) | |
2117 | ipr_log_path_elem(hostrcb, cfg); | |
2118 | ||
2119 | add_len -= be16_to_cpu(fabric->length); | |
2120 | fabric = (struct ipr_hostrcb_fabric_desc *) | |
2121 | ((unsigned long)fabric + be16_to_cpu(fabric->length)); | |
2122 | } | |
2123 | ||
ac719aba | 2124 | ipr_log_hex_data(ioa_cfg, (u32 *)fabric, add_len); |
49dc6a18 BK |
2125 | } |
2126 | ||
4565e370 WB |
2127 | /** |
2128 | * ipr_log_sis64_array_error - Log a sis64 array error. | |
2129 | * @ioa_cfg: ioa config struct | |
2130 | * @hostrcb: hostrcb struct | |
2131 | * | |
2132 | * Return value: | |
2133 | * none | |
2134 | **/ | |
2135 | static void ipr_log_sis64_array_error(struct ipr_ioa_cfg *ioa_cfg, | |
2136 | struct ipr_hostrcb *hostrcb) | |
2137 | { | |
2138 | int i, num_entries; | |
2139 | struct ipr_hostrcb_type_24_error *error; | |
2140 | struct ipr_hostrcb64_array_data_entry *array_entry; | |
2141 | char buffer[IPR_MAX_RES_PATH_LENGTH]; | |
2142 | const u8 zero_sn[IPR_SERIAL_NUM_LEN] = { [0 ... IPR_SERIAL_NUM_LEN-1] = '0' }; | |
2143 | ||
2144 | error = &hostrcb->hcam.u.error64.u.type_24_error; | |
2145 | ||
2146 | ipr_err_separator; | |
2147 | ||
2148 | ipr_err("RAID %s Array Configuration: %s\n", | |
2149 | error->protection_level, | |
5adcbeb3 | 2150 | ipr_format_res_path(error->last_res_path, buffer, sizeof(buffer))); |
4565e370 WB |
2151 | |
2152 | ipr_err_separator; | |
2153 | ||
2154 | array_entry = error->array_member; | |
7262026f WB |
2155 | num_entries = min_t(u32, error->num_entries, |
2156 | ARRAY_SIZE(error->array_member)); | |
4565e370 WB |
2157 | |
2158 | for (i = 0; i < num_entries; i++, array_entry++) { | |
2159 | ||
2160 | if (!memcmp(array_entry->vpd.vpd.sn, zero_sn, IPR_SERIAL_NUM_LEN)) | |
2161 | continue; | |
2162 | ||
2163 | if (error->exposed_mode_adn == i) | |
2164 | ipr_err("Exposed Array Member %d:\n", i); | |
2165 | else | |
2166 | ipr_err("Array Member %d:\n", i); | |
2167 | ||
2168 | ipr_err("Array Member %d:\n", i); | |
2169 | ipr_log_ext_vpd(&array_entry->vpd); | |
7262026f | 2170 | ipr_err("Current Location: %s\n", |
5adcbeb3 WB |
2171 | ipr_format_res_path(array_entry->res_path, buffer, |
2172 | sizeof(buffer))); | |
7262026f | 2173 | ipr_err("Expected Location: %s\n", |
5adcbeb3 WB |
2174 | ipr_format_res_path(array_entry->expected_res_path, |
2175 | buffer, sizeof(buffer))); | |
4565e370 WB |
2176 | |
2177 | ipr_err_separator; | |
2178 | } | |
2179 | } | |
2180 | ||
2181 | /** | |
2182 | * ipr_log_sis64_fabric_error - Log a sis64 fabric error. | |
2183 | * @ioa_cfg: ioa config struct | |
2184 | * @hostrcb: hostrcb struct | |
2185 | * | |
2186 | * Return value: | |
2187 | * none | |
2188 | **/ | |
2189 | static void ipr_log_sis64_fabric_error(struct ipr_ioa_cfg *ioa_cfg, | |
2190 | struct ipr_hostrcb *hostrcb) | |
2191 | { | |
2192 | struct ipr_hostrcb_type_30_error *error; | |
2193 | struct ipr_hostrcb64_fabric_desc *fabric; | |
2194 | struct ipr_hostrcb64_config_element *cfg; | |
2195 | int i, add_len; | |
2196 | ||
2197 | error = &hostrcb->hcam.u.error64.u.type_30_error; | |
2198 | ||
2199 | error->failure_reason[sizeof(error->failure_reason) - 1] = '\0'; | |
2200 | ipr_hcam_err(hostrcb, "%s\n", error->failure_reason); | |
2201 | ||
2202 | add_len = be32_to_cpu(hostrcb->hcam.length) - | |
2203 | (offsetof(struct ipr_hostrcb64_error, u) + | |
2204 | offsetof(struct ipr_hostrcb_type_30_error, desc)); | |
2205 | ||
2206 | for (i = 0, fabric = error->desc; i < error->num_entries; i++) { | |
2207 | ipr_log64_fabric_path(hostrcb, fabric); | |
2208 | for_each_fabric_cfg(fabric, cfg) | |
2209 | ipr_log64_path_elem(hostrcb, cfg); | |
2210 | ||
2211 | add_len -= be16_to_cpu(fabric->length); | |
2212 | fabric = (struct ipr_hostrcb64_fabric_desc *) | |
2213 | ((unsigned long)fabric + be16_to_cpu(fabric->length)); | |
2214 | } | |
2215 | ||
2216 | ipr_log_hex_data(ioa_cfg, (u32 *)fabric, add_len); | |
2217 | } | |
2218 | ||
b0df54bb | 2219 | /** |
2220 | * ipr_log_generic_error - Log an adapter error. | |
2221 | * @ioa_cfg: ioa config struct | |
2222 | * @hostrcb: hostrcb struct | |
2223 | * | |
2224 | * Return value: | |
2225 | * none | |
2226 | **/ | |
2227 | static void ipr_log_generic_error(struct ipr_ioa_cfg *ioa_cfg, | |
2228 | struct ipr_hostrcb *hostrcb) | |
2229 | { | |
ac719aba | 2230 | ipr_log_hex_data(ioa_cfg, hostrcb->hcam.u.raw.data, |
b0df54bb | 2231 | be32_to_cpu(hostrcb->hcam.length)); |
2232 | } | |
2233 | ||
1da177e4 LT |
2234 | /** |
2235 | * ipr_get_error - Find the specfied IOASC in the ipr_error_table. | |
2236 | * @ioasc: IOASC | |
2237 | * | |
2238 | * This function will return the index of into the ipr_error_table | |
2239 | * for the specified IOASC. If the IOASC is not in the table, | |
2240 | * 0 will be returned, which points to the entry used for unknown errors. | |
2241 | * | |
2242 | * Return value: | |
2243 | * index into the ipr_error_table | |
2244 | **/ | |
2245 | static u32 ipr_get_error(u32 ioasc) | |
2246 | { | |
2247 | int i; | |
2248 | ||
2249 | for (i = 0; i < ARRAY_SIZE(ipr_error_table); i++) | |
35a39691 | 2250 | if (ipr_error_table[i].ioasc == (ioasc & IPR_IOASC_IOASC_MASK)) |
1da177e4 LT |
2251 | return i; |
2252 | ||
2253 | return 0; | |
2254 | } | |
2255 | ||
2256 | /** | |
2257 | * ipr_handle_log_data - Log an adapter error. | |
2258 | * @ioa_cfg: ioa config struct | |
2259 | * @hostrcb: hostrcb struct | |
2260 | * | |
2261 | * This function logs an adapter error to the system. | |
2262 | * | |
2263 | * Return value: | |
2264 | * none | |
2265 | **/ | |
2266 | static void ipr_handle_log_data(struct ipr_ioa_cfg *ioa_cfg, | |
2267 | struct ipr_hostrcb *hostrcb) | |
2268 | { | |
2269 | u32 ioasc; | |
2270 | int error_index; | |
2271 | ||
2272 | if (hostrcb->hcam.notify_type != IPR_HOST_RCB_NOTIF_TYPE_ERROR_LOG_ENTRY) | |
2273 | return; | |
2274 | ||
2275 | if (hostrcb->hcam.notifications_lost == IPR_HOST_RCB_NOTIFICATIONS_LOST) | |
2276 | dev_err(&ioa_cfg->pdev->dev, "Error notifications lost\n"); | |
2277 | ||
4565e370 WB |
2278 | if (ioa_cfg->sis64) |
2279 | ioasc = be32_to_cpu(hostrcb->hcam.u.error64.fd_ioasc); | |
2280 | else | |
2281 | ioasc = be32_to_cpu(hostrcb->hcam.u.error.fd_ioasc); | |
1da177e4 | 2282 | |
4565e370 WB |
2283 | if (!ioa_cfg->sis64 && (ioasc == IPR_IOASC_BUS_WAS_RESET || |
2284 | ioasc == IPR_IOASC_BUS_WAS_RESET_BY_OTHER)) { | |
1da177e4 LT |
2285 | /* Tell the midlayer we had a bus reset so it will handle the UA properly */ |
2286 | scsi_report_bus_reset(ioa_cfg->host, | |
4565e370 | 2287 | hostrcb->hcam.u.error.fd_res_addr.bus); |
1da177e4 LT |
2288 | } |
2289 | ||
2290 | error_index = ipr_get_error(ioasc); | |
2291 | ||
2292 | if (!ipr_error_table[error_index].log_hcam) | |
2293 | return; | |
2294 | ||
49dc6a18 | 2295 | ipr_hcam_err(hostrcb, "%s\n", ipr_error_table[error_index].error); |
1da177e4 LT |
2296 | |
2297 | /* Set indication we have logged an error */ | |
2298 | ioa_cfg->errors_logged++; | |
2299 | ||
933916f3 | 2300 | if (ioa_cfg->log_level < ipr_error_table[error_index].log_hcam) |
1da177e4 | 2301 | return; |
cf852037 | 2302 | if (be32_to_cpu(hostrcb->hcam.length) > sizeof(hostrcb->hcam.u.raw)) |
2303 | hostrcb->hcam.length = cpu_to_be32(sizeof(hostrcb->hcam.u.raw)); | |
1da177e4 LT |
2304 | |
2305 | switch (hostrcb->hcam.overlay_id) { | |
1da177e4 LT |
2306 | case IPR_HOST_RCB_OVERLAY_ID_2: |
2307 | ipr_log_cache_error(ioa_cfg, hostrcb); | |
2308 | break; | |
2309 | case IPR_HOST_RCB_OVERLAY_ID_3: | |
2310 | ipr_log_config_error(ioa_cfg, hostrcb); | |
2311 | break; | |
2312 | case IPR_HOST_RCB_OVERLAY_ID_4: | |
2313 | case IPR_HOST_RCB_OVERLAY_ID_6: | |
2314 | ipr_log_array_error(ioa_cfg, hostrcb); | |
2315 | break; | |
b0df54bb | 2316 | case IPR_HOST_RCB_OVERLAY_ID_7: |
2317 | ipr_log_dual_ioa_error(ioa_cfg, hostrcb); | |
2318 | break; | |
ee0f05b8 | 2319 | case IPR_HOST_RCB_OVERLAY_ID_12: |
2320 | ipr_log_enhanced_cache_error(ioa_cfg, hostrcb); | |
2321 | break; | |
2322 | case IPR_HOST_RCB_OVERLAY_ID_13: | |
2323 | ipr_log_enhanced_config_error(ioa_cfg, hostrcb); | |
2324 | break; | |
2325 | case IPR_HOST_RCB_OVERLAY_ID_14: | |
2326 | case IPR_HOST_RCB_OVERLAY_ID_16: | |
2327 | ipr_log_enhanced_array_error(ioa_cfg, hostrcb); | |
2328 | break; | |
2329 | case IPR_HOST_RCB_OVERLAY_ID_17: | |
2330 | ipr_log_enhanced_dual_ioa_error(ioa_cfg, hostrcb); | |
2331 | break; | |
49dc6a18 BK |
2332 | case IPR_HOST_RCB_OVERLAY_ID_20: |
2333 | ipr_log_fabric_error(ioa_cfg, hostrcb); | |
2334 | break; | |
4565e370 WB |
2335 | case IPR_HOST_RCB_OVERLAY_ID_23: |
2336 | ipr_log_sis64_config_error(ioa_cfg, hostrcb); | |
2337 | break; | |
2338 | case IPR_HOST_RCB_OVERLAY_ID_24: | |
2339 | case IPR_HOST_RCB_OVERLAY_ID_26: | |
2340 | ipr_log_sis64_array_error(ioa_cfg, hostrcb); | |
2341 | break; | |
2342 | case IPR_HOST_RCB_OVERLAY_ID_30: | |
2343 | ipr_log_sis64_fabric_error(ioa_cfg, hostrcb); | |
2344 | break; | |
cf852037 | 2345 | case IPR_HOST_RCB_OVERLAY_ID_1: |
1da177e4 | 2346 | case IPR_HOST_RCB_OVERLAY_ID_DEFAULT: |
1da177e4 | 2347 | default: |
a9cfca96 | 2348 | ipr_log_generic_error(ioa_cfg, hostrcb); |
1da177e4 LT |
2349 | break; |
2350 | } | |
2351 | } | |
2352 | ||
2353 | /** | |
2354 | * ipr_process_error - Op done function for an adapter error log. | |
2355 | * @ipr_cmd: ipr command struct | |
2356 | * | |
2357 | * This function is the op done function for an error log host | |
2358 | * controlled async from the adapter. It will log the error and | |
2359 | * send the HCAM back to the adapter. | |
2360 | * | |
2361 | * Return value: | |
2362 | * none | |
2363 | **/ | |
2364 | static void ipr_process_error(struct ipr_cmnd *ipr_cmd) | |
2365 | { | |
2366 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; | |
2367 | struct ipr_hostrcb *hostrcb = ipr_cmd->u.hostrcb; | |
96d21f00 | 2368 | u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc); |
4565e370 WB |
2369 | u32 fd_ioasc; |
2370 | ||
2371 | if (ioa_cfg->sis64) | |
2372 | fd_ioasc = be32_to_cpu(hostrcb->hcam.u.error64.fd_ioasc); | |
2373 | else | |
2374 | fd_ioasc = be32_to_cpu(hostrcb->hcam.u.error.fd_ioasc); | |
1da177e4 LT |
2375 | |
2376 | list_del(&hostrcb->queue); | |
2377 | list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q); | |
2378 | ||
2379 | if (!ioasc) { | |
2380 | ipr_handle_log_data(ioa_cfg, hostrcb); | |
65f56475 BK |
2381 | if (fd_ioasc == IPR_IOASC_NR_IOA_RESET_REQUIRED) |
2382 | ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_ABBREV); | |
1da177e4 LT |
2383 | } else if (ioasc != IPR_IOASC_IOA_WAS_RESET) { |
2384 | dev_err(&ioa_cfg->pdev->dev, | |
2385 | "Host RCB failed with IOASC: 0x%08X\n", ioasc); | |
2386 | } | |
2387 | ||
2388 | ipr_send_hcam(ioa_cfg, IPR_HCAM_CDB_OP_CODE_LOG_DATA, hostrcb); | |
2389 | } | |
2390 | ||
2391 | /** | |
2392 | * ipr_timeout - An internally generated op has timed out. | |
2393 | * @ipr_cmd: ipr command struct | |
2394 | * | |
2395 | * This function blocks host requests and initiates an | |
2396 | * adapter reset. | |
2397 | * | |
2398 | * Return value: | |
2399 | * none | |
2400 | **/ | |
2401 | static void ipr_timeout(struct ipr_cmnd *ipr_cmd) | |
2402 | { | |
2403 | unsigned long lock_flags = 0; | |
2404 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; | |
2405 | ||
2406 | ENTER; | |
2407 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); | |
2408 | ||
2409 | ioa_cfg->errors_logged++; | |
2410 | dev_err(&ioa_cfg->pdev->dev, | |
2411 | "Adapter being reset due to command timeout.\n"); | |
2412 | ||
2413 | if (WAIT_FOR_DUMP == ioa_cfg->sdt_state) | |
2414 | ioa_cfg->sdt_state = GET_DUMP; | |
2415 | ||
2416 | if (!ioa_cfg->in_reset_reload || ioa_cfg->reset_cmd == ipr_cmd) | |
2417 | ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE); | |
2418 | ||
2419 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
2420 | LEAVE; | |
2421 | } | |
2422 | ||
2423 | /** | |
2424 | * ipr_oper_timeout - Adapter timed out transitioning to operational | |
2425 | * @ipr_cmd: ipr command struct | |
2426 | * | |
2427 | * This function blocks host requests and initiates an | |
2428 | * adapter reset. | |
2429 | * | |
2430 | * Return value: | |
2431 | * none | |
2432 | **/ | |
2433 | static void ipr_oper_timeout(struct ipr_cmnd *ipr_cmd) | |
2434 | { | |
2435 | unsigned long lock_flags = 0; | |
2436 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; | |
2437 | ||
2438 | ENTER; | |
2439 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); | |
2440 | ||
2441 | ioa_cfg->errors_logged++; | |
2442 | dev_err(&ioa_cfg->pdev->dev, | |
2443 | "Adapter timed out transitioning to operational.\n"); | |
2444 | ||
2445 | if (WAIT_FOR_DUMP == ioa_cfg->sdt_state) | |
2446 | ioa_cfg->sdt_state = GET_DUMP; | |
2447 | ||
2448 | if (!ioa_cfg->in_reset_reload || ioa_cfg->reset_cmd == ipr_cmd) { | |
2449 | if (ipr_fastfail) | |
2450 | ioa_cfg->reset_retries += IPR_NUM_RESET_RELOAD_RETRIES; | |
2451 | ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE); | |
2452 | } | |
2453 | ||
2454 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
2455 | LEAVE; | |
2456 | } | |
2457 | ||
2458 | /** | |
2459 | * ipr_reset_reload - Reset/Reload the IOA | |
2460 | * @ioa_cfg: ioa config struct | |
2461 | * @shutdown_type: shutdown type | |
2462 | * | |
2463 | * This function resets the adapter and re-initializes it. | |
2464 | * This function assumes that all new host commands have been stopped. | |
2465 | * Return value: | |
2466 | * SUCCESS / FAILED | |
2467 | **/ | |
2468 | static int ipr_reset_reload(struct ipr_ioa_cfg *ioa_cfg, | |
2469 | enum ipr_shutdown_type shutdown_type) | |
2470 | { | |
2471 | if (!ioa_cfg->in_reset_reload) | |
2472 | ipr_initiate_ioa_reset(ioa_cfg, shutdown_type); | |
2473 | ||
2474 | spin_unlock_irq(ioa_cfg->host->host_lock); | |
2475 | wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload); | |
2476 | spin_lock_irq(ioa_cfg->host->host_lock); | |
2477 | ||
2478 | /* If we got hit with a host reset while we were already resetting | |
2479 | the adapter for some reason, and the reset failed. */ | |
2480 | if (ioa_cfg->ioa_is_dead) { | |
2481 | ipr_trace; | |
2482 | return FAILED; | |
2483 | } | |
2484 | ||
2485 | return SUCCESS; | |
2486 | } | |
2487 | ||
2488 | /** | |
2489 | * ipr_find_ses_entry - Find matching SES in SES table | |
2490 | * @res: resource entry struct of SES | |
2491 | * | |
2492 | * Return value: | |
2493 | * pointer to SES table entry / NULL on failure | |
2494 | **/ | |
2495 | static const struct ipr_ses_table_entry * | |
2496 | ipr_find_ses_entry(struct ipr_resource_entry *res) | |
2497 | { | |
2498 | int i, j, matches; | |
3e7ebdfa | 2499 | struct ipr_std_inq_vpids *vpids; |
1da177e4 LT |
2500 | const struct ipr_ses_table_entry *ste = ipr_ses_table; |
2501 | ||
2502 | for (i = 0; i < ARRAY_SIZE(ipr_ses_table); i++, ste++) { | |
2503 | for (j = 0, matches = 0; j < IPR_PROD_ID_LEN; j++) { | |
2504 | if (ste->compare_product_id_byte[j] == 'X') { | |
3e7ebdfa WB |
2505 | vpids = &res->std_inq_data.vpids; |
2506 | if (vpids->product_id[j] == ste->product_id[j]) | |
1da177e4 LT |
2507 | matches++; |
2508 | else | |
2509 | break; | |
2510 | } else | |
2511 | matches++; | |
2512 | } | |
2513 | ||
2514 | if (matches == IPR_PROD_ID_LEN) | |
2515 | return ste; | |
2516 | } | |
2517 | ||
2518 | return NULL; | |
2519 | } | |
2520 | ||
2521 | /** | |
2522 | * ipr_get_max_scsi_speed - Determine max SCSI speed for a given bus | |
2523 | * @ioa_cfg: ioa config struct | |
2524 | * @bus: SCSI bus | |
2525 | * @bus_width: bus width | |
2526 | * | |
2527 | * Return value: | |
2528 | * SCSI bus speed in units of 100KHz, 1600 is 160 MHz | |
2529 | * For a 2-byte wide SCSI bus, the maximum transfer speed is | |
2530 | * twice the maximum transfer rate (e.g. for a wide enabled bus, | |
2531 | * max 160MHz = max 320MB/sec). | |
2532 | **/ | |
2533 | static u32 ipr_get_max_scsi_speed(struct ipr_ioa_cfg *ioa_cfg, u8 bus, u8 bus_width) | |
2534 | { | |
2535 | struct ipr_resource_entry *res; | |
2536 | const struct ipr_ses_table_entry *ste; | |
2537 | u32 max_xfer_rate = IPR_MAX_SCSI_RATE(bus_width); | |
2538 | ||
2539 | /* Loop through each config table entry in the config table buffer */ | |
2540 | list_for_each_entry(res, &ioa_cfg->used_res_q, queue) { | |
3e7ebdfa | 2541 | if (!(IPR_IS_SES_DEVICE(res->std_inq_data))) |
1da177e4 LT |
2542 | continue; |
2543 | ||
3e7ebdfa | 2544 | if (bus != res->bus) |
1da177e4 LT |
2545 | continue; |
2546 | ||
2547 | if (!(ste = ipr_find_ses_entry(res))) | |
2548 | continue; | |
2549 | ||
2550 | max_xfer_rate = (ste->max_bus_speed_limit * 10) / (bus_width / 8); | |
2551 | } | |
2552 | ||
2553 | return max_xfer_rate; | |
2554 | } | |
2555 | ||
2556 | /** | |
2557 | * ipr_wait_iodbg_ack - Wait for an IODEBUG ACK from the IOA | |
2558 | * @ioa_cfg: ioa config struct | |
2559 | * @max_delay: max delay in micro-seconds to wait | |
2560 | * | |
2561 | * Waits for an IODEBUG ACK from the IOA, doing busy looping. | |
2562 | * | |
2563 | * Return value: | |
2564 | * 0 on success / other on failure | |
2565 | **/ | |
2566 | static int ipr_wait_iodbg_ack(struct ipr_ioa_cfg *ioa_cfg, int max_delay) | |
2567 | { | |
2568 | volatile u32 pcii_reg; | |
2569 | int delay = 1; | |
2570 | ||
2571 | /* Read interrupt reg until IOA signals IO Debug Acknowledge */ | |
2572 | while (delay < max_delay) { | |
2573 | pcii_reg = readl(ioa_cfg->regs.sense_interrupt_reg); | |
2574 | ||
2575 | if (pcii_reg & IPR_PCII_IO_DEBUG_ACKNOWLEDGE) | |
2576 | return 0; | |
2577 | ||
2578 | /* udelay cannot be used if delay is more than a few milliseconds */ | |
2579 | if ((delay / 1000) > MAX_UDELAY_MS) | |
2580 | mdelay(delay / 1000); | |
2581 | else | |
2582 | udelay(delay); | |
2583 | ||
2584 | delay += delay; | |
2585 | } | |
2586 | return -EIO; | |
2587 | } | |
2588 | ||
dcbad00e WB |
2589 | /** |
2590 | * ipr_get_sis64_dump_data_section - Dump IOA memory | |
2591 | * @ioa_cfg: ioa config struct | |
2592 | * @start_addr: adapter address to dump | |
2593 | * @dest: destination kernel buffer | |
2594 | * @length_in_words: length to dump in 4 byte words | |
2595 | * | |
2596 | * Return value: | |
2597 | * 0 on success | |
2598 | **/ | |
2599 | static int ipr_get_sis64_dump_data_section(struct ipr_ioa_cfg *ioa_cfg, | |
2600 | u32 start_addr, | |
2601 | __be32 *dest, u32 length_in_words) | |
2602 | { | |
2603 | int i; | |
2604 | ||
2605 | for (i = 0; i < length_in_words; i++) { | |
2606 | writel(start_addr+(i*4), ioa_cfg->regs.dump_addr_reg); | |
2607 | *dest = cpu_to_be32(readl(ioa_cfg->regs.dump_data_reg)); | |
2608 | dest++; | |
2609 | } | |
2610 | ||
2611 | return 0; | |
2612 | } | |
2613 | ||
1da177e4 LT |
2614 | /** |
2615 | * ipr_get_ldump_data_section - Dump IOA memory | |
2616 | * @ioa_cfg: ioa config struct | |
2617 | * @start_addr: adapter address to dump | |
2618 | * @dest: destination kernel buffer | |
2619 | * @length_in_words: length to dump in 4 byte words | |
2620 | * | |
2621 | * Return value: | |
2622 | * 0 on success / -EIO on failure | |
2623 | **/ | |
2624 | static int ipr_get_ldump_data_section(struct ipr_ioa_cfg *ioa_cfg, | |
2625 | u32 start_addr, | |
2626 | __be32 *dest, u32 length_in_words) | |
2627 | { | |
2628 | volatile u32 temp_pcii_reg; | |
2629 | int i, delay = 0; | |
2630 | ||
dcbad00e WB |
2631 | if (ioa_cfg->sis64) |
2632 | return ipr_get_sis64_dump_data_section(ioa_cfg, start_addr, | |
2633 | dest, length_in_words); | |
2634 | ||
1da177e4 LT |
2635 | /* Write IOA interrupt reg starting LDUMP state */ |
2636 | writel((IPR_UPROCI_RESET_ALERT | IPR_UPROCI_IO_DEBUG_ALERT), | |
214777ba | 2637 | ioa_cfg->regs.set_uproc_interrupt_reg32); |
1da177e4 LT |
2638 | |
2639 | /* Wait for IO debug acknowledge */ | |
2640 | if (ipr_wait_iodbg_ack(ioa_cfg, | |
2641 | IPR_LDUMP_MAX_LONG_ACK_DELAY_IN_USEC)) { | |
2642 | dev_err(&ioa_cfg->pdev->dev, | |
2643 | "IOA dump long data transfer timeout\n"); | |
2644 | return -EIO; | |
2645 | } | |
2646 | ||
2647 | /* Signal LDUMP interlocked - clear IO debug ack */ | |
2648 | writel(IPR_PCII_IO_DEBUG_ACKNOWLEDGE, | |
2649 | ioa_cfg->regs.clr_interrupt_reg); | |
2650 | ||
2651 | /* Write Mailbox with starting address */ | |
2652 | writel(start_addr, ioa_cfg->ioa_mailbox); | |
2653 | ||
2654 | /* Signal address valid - clear IOA Reset alert */ | |
2655 | writel(IPR_UPROCI_RESET_ALERT, | |
214777ba | 2656 | ioa_cfg->regs.clr_uproc_interrupt_reg32); |
1da177e4 LT |
2657 | |
2658 | for (i = 0; i < length_in_words; i++) { | |
2659 | /* Wait for IO debug acknowledge */ | |
2660 | if (ipr_wait_iodbg_ack(ioa_cfg, | |
2661 | IPR_LDUMP_MAX_SHORT_ACK_DELAY_IN_USEC)) { | |
2662 | dev_err(&ioa_cfg->pdev->dev, | |
2663 | "IOA dump short data transfer timeout\n"); | |
2664 | return -EIO; | |
2665 | } | |
2666 | ||
2667 | /* Read data from mailbox and increment destination pointer */ | |
2668 | *dest = cpu_to_be32(readl(ioa_cfg->ioa_mailbox)); | |
2669 | dest++; | |
2670 | ||
2671 | /* For all but the last word of data, signal data received */ | |
2672 | if (i < (length_in_words - 1)) { | |
2673 | /* Signal dump data received - Clear IO debug Ack */ | |
2674 | writel(IPR_PCII_IO_DEBUG_ACKNOWLEDGE, | |
2675 | ioa_cfg->regs.clr_interrupt_reg); | |
2676 | } | |
2677 | } | |
2678 | ||
2679 | /* Signal end of block transfer. Set reset alert then clear IO debug ack */ | |
2680 | writel(IPR_UPROCI_RESET_ALERT, | |
214777ba | 2681 | ioa_cfg->regs.set_uproc_interrupt_reg32); |
1da177e4 LT |
2682 | |
2683 | writel(IPR_UPROCI_IO_DEBUG_ALERT, | |
214777ba | 2684 | ioa_cfg->regs.clr_uproc_interrupt_reg32); |
1da177e4 LT |
2685 | |
2686 | /* Signal dump data received - Clear IO debug Ack */ | |
2687 | writel(IPR_PCII_IO_DEBUG_ACKNOWLEDGE, | |
2688 | ioa_cfg->regs.clr_interrupt_reg); | |
2689 | ||
2690 | /* Wait for IOA to signal LDUMP exit - IOA reset alert will be cleared */ | |
2691 | while (delay < IPR_LDUMP_MAX_SHORT_ACK_DELAY_IN_USEC) { | |
2692 | temp_pcii_reg = | |
214777ba | 2693 | readl(ioa_cfg->regs.sense_uproc_interrupt_reg32); |
1da177e4 LT |
2694 | |
2695 | if (!(temp_pcii_reg & IPR_UPROCI_RESET_ALERT)) | |
2696 | return 0; | |
2697 | ||
2698 | udelay(10); | |
2699 | delay += 10; | |
2700 | } | |
2701 | ||
2702 | return 0; | |
2703 | } | |
2704 | ||
2705 | #ifdef CONFIG_SCSI_IPR_DUMP | |
2706 | /** | |
2707 | * ipr_sdt_copy - Copy Smart Dump Table to kernel buffer | |
2708 | * @ioa_cfg: ioa config struct | |
2709 | * @pci_address: adapter address | |
2710 | * @length: length of data to copy | |
2711 | * | |
2712 | * Copy data from PCI adapter to kernel buffer. | |
2713 | * Note: length MUST be a 4 byte multiple | |
2714 | * Return value: | |
2715 | * 0 on success / other on failure | |
2716 | **/ | |
2717 | static int ipr_sdt_copy(struct ipr_ioa_cfg *ioa_cfg, | |
2718 | unsigned long pci_address, u32 length) | |
2719 | { | |
2720 | int bytes_copied = 0; | |
2721 | int cur_len, rc, rem_len, rem_page_len; | |
2722 | __be32 *page; | |
2723 | unsigned long lock_flags = 0; | |
2724 | struct ipr_ioa_dump *ioa_dump = &ioa_cfg->dump->ioa_dump; | |
2725 | ||
2726 | while (bytes_copied < length && | |
2727 | (ioa_dump->hdr.len + bytes_copied) < IPR_MAX_IOA_DUMP_SIZE) { | |
2728 | if (ioa_dump->page_offset >= PAGE_SIZE || | |
2729 | ioa_dump->page_offset == 0) { | |
2730 | page = (__be32 *)__get_free_page(GFP_ATOMIC); | |
2731 | ||
2732 | if (!page) { | |
2733 | ipr_trace; | |
2734 | return bytes_copied; | |
2735 | } | |
2736 | ||
2737 | ioa_dump->page_offset = 0; | |
2738 | ioa_dump->ioa_data[ioa_dump->next_page_index] = page; | |
2739 | ioa_dump->next_page_index++; | |
2740 | } else | |
2741 | page = ioa_dump->ioa_data[ioa_dump->next_page_index - 1]; | |
2742 | ||
2743 | rem_len = length - bytes_copied; | |
2744 | rem_page_len = PAGE_SIZE - ioa_dump->page_offset; | |
2745 | cur_len = min(rem_len, rem_page_len); | |
2746 | ||
2747 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); | |
2748 | if (ioa_cfg->sdt_state == ABORT_DUMP) { | |
2749 | rc = -EIO; | |
2750 | } else { | |
2751 | rc = ipr_get_ldump_data_section(ioa_cfg, | |
2752 | pci_address + bytes_copied, | |
2753 | &page[ioa_dump->page_offset / 4], | |
2754 | (cur_len / sizeof(u32))); | |
2755 | } | |
2756 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
2757 | ||
2758 | if (!rc) { | |
2759 | ioa_dump->page_offset += cur_len; | |
2760 | bytes_copied += cur_len; | |
2761 | } else { | |
2762 | ipr_trace; | |
2763 | break; | |
2764 | } | |
2765 | schedule(); | |
2766 | } | |
2767 | ||
2768 | return bytes_copied; | |
2769 | } | |
2770 | ||
2771 | /** | |
2772 | * ipr_init_dump_entry_hdr - Initialize a dump entry header. | |
2773 | * @hdr: dump entry header struct | |
2774 | * | |
2775 | * Return value: | |
2776 | * nothing | |
2777 | **/ | |
2778 | static void ipr_init_dump_entry_hdr(struct ipr_dump_entry_header *hdr) | |
2779 | { | |
2780 | hdr->eye_catcher = IPR_DUMP_EYE_CATCHER; | |
2781 | hdr->num_elems = 1; | |
2782 | hdr->offset = sizeof(*hdr); | |
2783 | hdr->status = IPR_DUMP_STATUS_SUCCESS; | |
2784 | } | |
2785 | ||
2786 | /** | |
2787 | * ipr_dump_ioa_type_data - Fill in the adapter type in the dump. | |
2788 | * @ioa_cfg: ioa config struct | |
2789 | * @driver_dump: driver dump struct | |
2790 | * | |
2791 | * Return value: | |
2792 | * nothing | |
2793 | **/ | |
2794 | static void ipr_dump_ioa_type_data(struct ipr_ioa_cfg *ioa_cfg, | |
2795 | struct ipr_driver_dump *driver_dump) | |
2796 | { | |
2797 | struct ipr_inquiry_page3 *ucode_vpd = &ioa_cfg->vpd_cbs->page3_data; | |
2798 | ||
2799 | ipr_init_dump_entry_hdr(&driver_dump->ioa_type_entry.hdr); | |
2800 | driver_dump->ioa_type_entry.hdr.len = | |
2801 | sizeof(struct ipr_dump_ioa_type_entry) - | |
2802 | sizeof(struct ipr_dump_entry_header); | |
2803 | driver_dump->ioa_type_entry.hdr.data_type = IPR_DUMP_DATA_TYPE_BINARY; | |
2804 | driver_dump->ioa_type_entry.hdr.id = IPR_DUMP_DRIVER_TYPE_ID; | |
2805 | driver_dump->ioa_type_entry.type = ioa_cfg->type; | |
2806 | driver_dump->ioa_type_entry.fw_version = (ucode_vpd->major_release << 24) | | |
2807 | (ucode_vpd->card_type << 16) | (ucode_vpd->minor_release[0] << 8) | | |
2808 | ucode_vpd->minor_release[1]; | |
2809 | driver_dump->hdr.num_entries++; | |
2810 | } | |
2811 | ||
2812 | /** | |
2813 | * ipr_dump_version_data - Fill in the driver version in the dump. | |
2814 | * @ioa_cfg: ioa config struct | |
2815 | * @driver_dump: driver dump struct | |
2816 | * | |
2817 | * Return value: | |
2818 | * nothing | |
2819 | **/ | |
2820 | static void ipr_dump_version_data(struct ipr_ioa_cfg *ioa_cfg, | |
2821 | struct ipr_driver_dump *driver_dump) | |
2822 | { | |
2823 | ipr_init_dump_entry_hdr(&driver_dump->version_entry.hdr); | |
2824 | driver_dump->version_entry.hdr.len = | |
2825 | sizeof(struct ipr_dump_version_entry) - | |
2826 | sizeof(struct ipr_dump_entry_header); | |
2827 | driver_dump->version_entry.hdr.data_type = IPR_DUMP_DATA_TYPE_ASCII; | |
2828 | driver_dump->version_entry.hdr.id = IPR_DUMP_DRIVER_VERSION_ID; | |
2829 | strcpy(driver_dump->version_entry.version, IPR_DRIVER_VERSION); | |
2830 | driver_dump->hdr.num_entries++; | |
2831 | } | |
2832 | ||
2833 | /** | |
2834 | * ipr_dump_trace_data - Fill in the IOA trace in the dump. | |
2835 | * @ioa_cfg: ioa config struct | |
2836 | * @driver_dump: driver dump struct | |
2837 | * | |
2838 | * Return value: | |
2839 | * nothing | |
2840 | **/ | |
2841 | static void ipr_dump_trace_data(struct ipr_ioa_cfg *ioa_cfg, | |
2842 | struct ipr_driver_dump *driver_dump) | |
2843 | { | |
2844 | ipr_init_dump_entry_hdr(&driver_dump->trace_entry.hdr); | |
2845 | driver_dump->trace_entry.hdr.len = | |
2846 | sizeof(struct ipr_dump_trace_entry) - | |
2847 | sizeof(struct ipr_dump_entry_header); | |
2848 | driver_dump->trace_entry.hdr.data_type = IPR_DUMP_DATA_TYPE_BINARY; | |
2849 | driver_dump->trace_entry.hdr.id = IPR_DUMP_TRACE_ID; | |
2850 | memcpy(driver_dump->trace_entry.trace, ioa_cfg->trace, IPR_TRACE_SIZE); | |
2851 | driver_dump->hdr.num_entries++; | |
2852 | } | |
2853 | ||
2854 | /** | |
2855 | * ipr_dump_location_data - Fill in the IOA location in the dump. | |
2856 | * @ioa_cfg: ioa config struct | |
2857 | * @driver_dump: driver dump struct | |
2858 | * | |
2859 | * Return value: | |
2860 | * nothing | |
2861 | **/ | |
2862 | static void ipr_dump_location_data(struct ipr_ioa_cfg *ioa_cfg, | |
2863 | struct ipr_driver_dump *driver_dump) | |
2864 | { | |
2865 | ipr_init_dump_entry_hdr(&driver_dump->location_entry.hdr); | |
2866 | driver_dump->location_entry.hdr.len = | |
2867 | sizeof(struct ipr_dump_location_entry) - | |
2868 | sizeof(struct ipr_dump_entry_header); | |
2869 | driver_dump->location_entry.hdr.data_type = IPR_DUMP_DATA_TYPE_ASCII; | |
2870 | driver_dump->location_entry.hdr.id = IPR_DUMP_LOCATION_ID; | |
71610f55 | 2871 | strcpy(driver_dump->location_entry.location, dev_name(&ioa_cfg->pdev->dev)); |
1da177e4 LT |
2872 | driver_dump->hdr.num_entries++; |
2873 | } | |
2874 | ||
2875 | /** | |
2876 | * ipr_get_ioa_dump - Perform a dump of the driver and adapter. | |
2877 | * @ioa_cfg: ioa config struct | |
2878 | * @dump: dump struct | |
2879 | * | |
2880 | * Return value: | |
2881 | * nothing | |
2882 | **/ | |
2883 | static void ipr_get_ioa_dump(struct ipr_ioa_cfg *ioa_cfg, struct ipr_dump *dump) | |
2884 | { | |
2885 | unsigned long start_addr, sdt_word; | |
2886 | unsigned long lock_flags = 0; | |
2887 | struct ipr_driver_dump *driver_dump = &dump->driver_dump; | |
2888 | struct ipr_ioa_dump *ioa_dump = &dump->ioa_dump; | |
2889 | u32 num_entries, start_off, end_off; | |
2890 | u32 bytes_to_copy, bytes_copied, rc; | |
2891 | struct ipr_sdt *sdt; | |
dcbad00e | 2892 | int valid = 1; |
1da177e4 LT |
2893 | int i; |
2894 | ||
2895 | ENTER; | |
2896 | ||
2897 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); | |
2898 | ||
2899 | if (ioa_cfg->sdt_state != GET_DUMP) { | |
2900 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
2901 | return; | |
2902 | } | |
2903 | ||
2904 | start_addr = readl(ioa_cfg->ioa_mailbox); | |
2905 | ||
dcbad00e | 2906 | if (!ioa_cfg->sis64 && !ipr_sdt_is_fmt2(start_addr)) { |
1da177e4 LT |
2907 | dev_err(&ioa_cfg->pdev->dev, |
2908 | "Invalid dump table format: %lx\n", start_addr); | |
2909 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
2910 | return; | |
2911 | } | |
2912 | ||
2913 | dev_err(&ioa_cfg->pdev->dev, "Dump of IOA initiated\n"); | |
2914 | ||
2915 | driver_dump->hdr.eye_catcher = IPR_DUMP_EYE_CATCHER; | |
2916 | ||
2917 | /* Initialize the overall dump header */ | |
2918 | driver_dump->hdr.len = sizeof(struct ipr_driver_dump); | |
2919 | driver_dump->hdr.num_entries = 1; | |
2920 | driver_dump->hdr.first_entry_offset = sizeof(struct ipr_dump_header); | |
2921 | driver_dump->hdr.status = IPR_DUMP_STATUS_SUCCESS; | |
2922 | driver_dump->hdr.os = IPR_DUMP_OS_LINUX; | |
2923 | driver_dump->hdr.driver_name = IPR_DUMP_DRIVER_NAME; | |
2924 | ||
2925 | ipr_dump_version_data(ioa_cfg, driver_dump); | |
2926 | ipr_dump_location_data(ioa_cfg, driver_dump); | |
2927 | ipr_dump_ioa_type_data(ioa_cfg, driver_dump); | |
2928 | ipr_dump_trace_data(ioa_cfg, driver_dump); | |
2929 | ||
2930 | /* Update dump_header */ | |
2931 | driver_dump->hdr.len += sizeof(struct ipr_dump_entry_header); | |
2932 | ||
2933 | /* IOA Dump entry */ | |
2934 | ipr_init_dump_entry_hdr(&ioa_dump->hdr); | |
1da177e4 LT |
2935 | ioa_dump->hdr.len = 0; |
2936 | ioa_dump->hdr.data_type = IPR_DUMP_DATA_TYPE_BINARY; | |
2937 | ioa_dump->hdr.id = IPR_DUMP_IOA_DUMP_ID; | |
2938 | ||
2939 | /* First entries in sdt are actually a list of dump addresses and | |
2940 | lengths to gather the real dump data. sdt represents the pointer | |
2941 | to the ioa generated dump table. Dump data will be extracted based | |
2942 | on entries in this table */ | |
2943 | sdt = &ioa_dump->sdt; | |
2944 | ||
2945 | rc = ipr_get_ldump_data_section(ioa_cfg, start_addr, (__be32 *)sdt, | |
2946 | sizeof(struct ipr_sdt) / sizeof(__be32)); | |
2947 | ||
2948 | /* Smart Dump table is ready to use and the first entry is valid */ | |
dcbad00e WB |
2949 | if (rc || ((be32_to_cpu(sdt->hdr.state) != IPR_FMT3_SDT_READY_TO_USE) && |
2950 | (be32_to_cpu(sdt->hdr.state) != IPR_FMT2_SDT_READY_TO_USE))) { | |
1da177e4 LT |
2951 | dev_err(&ioa_cfg->pdev->dev, |
2952 | "Dump of IOA failed. Dump table not valid: %d, %X.\n", | |
2953 | rc, be32_to_cpu(sdt->hdr.state)); | |
2954 | driver_dump->hdr.status = IPR_DUMP_STATUS_FAILED; | |
2955 | ioa_cfg->sdt_state = DUMP_OBTAINED; | |
2956 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
2957 | return; | |
2958 | } | |
2959 | ||
2960 | num_entries = be32_to_cpu(sdt->hdr.num_entries_used); | |
2961 | ||
2962 | if (num_entries > IPR_NUM_SDT_ENTRIES) | |
2963 | num_entries = IPR_NUM_SDT_ENTRIES; | |
2964 | ||
2965 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
2966 | ||
2967 | for (i = 0; i < num_entries; i++) { | |
2968 | if (ioa_dump->hdr.len > IPR_MAX_IOA_DUMP_SIZE) { | |
2969 | driver_dump->hdr.status = IPR_DUMP_STATUS_QUAL_SUCCESS; | |
2970 | break; | |
2971 | } | |
2972 | ||
2973 | if (sdt->entry[i].flags & IPR_SDT_VALID_ENTRY) { | |
dcbad00e WB |
2974 | sdt_word = be32_to_cpu(sdt->entry[i].start_token); |
2975 | if (ioa_cfg->sis64) | |
2976 | bytes_to_copy = be32_to_cpu(sdt->entry[i].end_token); | |
2977 | else { | |
2978 | start_off = sdt_word & IPR_FMT2_MBX_ADDR_MASK; | |
2979 | end_off = be32_to_cpu(sdt->entry[i].end_token); | |
2980 | ||
2981 | if (ipr_sdt_is_fmt2(sdt_word) && sdt_word) | |
2982 | bytes_to_copy = end_off - start_off; | |
2983 | else | |
2984 | valid = 0; | |
2985 | } | |
2986 | if (valid) { | |
1da177e4 LT |
2987 | if (bytes_to_copy > IPR_MAX_IOA_DUMP_SIZE) { |
2988 | sdt->entry[i].flags &= ~IPR_SDT_VALID_ENTRY; | |
2989 | continue; | |
2990 | } | |
2991 | ||
2992 | /* Copy data from adapter to driver buffers */ | |
2993 | bytes_copied = ipr_sdt_copy(ioa_cfg, sdt_word, | |
2994 | bytes_to_copy); | |
2995 | ||
2996 | ioa_dump->hdr.len += bytes_copied; | |
2997 | ||
2998 | if (bytes_copied != bytes_to_copy) { | |
2999 | driver_dump->hdr.status = IPR_DUMP_STATUS_QUAL_SUCCESS; | |
3000 | break; | |
3001 | } | |
3002 | } | |
3003 | } | |
3004 | } | |
3005 | ||
3006 | dev_err(&ioa_cfg->pdev->dev, "Dump of IOA completed.\n"); | |
3007 | ||
3008 | /* Update dump_header */ | |
3009 | driver_dump->hdr.len += ioa_dump->hdr.len; | |
3010 | wmb(); | |
3011 | ioa_cfg->sdt_state = DUMP_OBTAINED; | |
3012 | LEAVE; | |
3013 | } | |
3014 | ||
3015 | #else | |
3016 | #define ipr_get_ioa_dump(ioa_cfg, dump) do { } while(0) | |
3017 | #endif | |
3018 | ||
3019 | /** | |
3020 | * ipr_release_dump - Free adapter dump memory | |
3021 | * @kref: kref struct | |
3022 | * | |
3023 | * Return value: | |
3024 | * nothing | |
3025 | **/ | |
3026 | static void ipr_release_dump(struct kref *kref) | |
3027 | { | |
3028 | struct ipr_dump *dump = container_of(kref,struct ipr_dump,kref); | |
3029 | struct ipr_ioa_cfg *ioa_cfg = dump->ioa_cfg; | |
3030 | unsigned long lock_flags = 0; | |
3031 | int i; | |
3032 | ||
3033 | ENTER; | |
3034 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); | |
3035 | ioa_cfg->dump = NULL; | |
3036 | ioa_cfg->sdt_state = INACTIVE; | |
3037 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
3038 | ||
3039 | for (i = 0; i < dump->ioa_dump.next_page_index; i++) | |
3040 | free_page((unsigned long) dump->ioa_dump.ioa_data[i]); | |
3041 | ||
3042 | kfree(dump); | |
3043 | LEAVE; | |
3044 | } | |
3045 | ||
3046 | /** | |
3047 | * ipr_worker_thread - Worker thread | |
c4028958 | 3048 | * @work: ioa config struct |
1da177e4 LT |
3049 | * |
3050 | * Called at task level from a work thread. This function takes care | |
3051 | * of adding and removing device from the mid-layer as configuration | |
3052 | * changes are detected by the adapter. | |
3053 | * | |
3054 | * Return value: | |
3055 | * nothing | |
3056 | **/ | |
c4028958 | 3057 | static void ipr_worker_thread(struct work_struct *work) |
1da177e4 LT |
3058 | { |
3059 | unsigned long lock_flags; | |
3060 | struct ipr_resource_entry *res; | |
3061 | struct scsi_device *sdev; | |
3062 | struct ipr_dump *dump; | |
c4028958 DH |
3063 | struct ipr_ioa_cfg *ioa_cfg = |
3064 | container_of(work, struct ipr_ioa_cfg, work_q); | |
1da177e4 LT |
3065 | u8 bus, target, lun; |
3066 | int did_work; | |
3067 | ||
3068 | ENTER; | |
3069 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); | |
3070 | ||
3071 | if (ioa_cfg->sdt_state == GET_DUMP) { | |
3072 | dump = ioa_cfg->dump; | |
3073 | if (!dump) { | |
3074 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
3075 | return; | |
3076 | } | |
3077 | kref_get(&dump->kref); | |
3078 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
3079 | ipr_get_ioa_dump(ioa_cfg, dump); | |
3080 | kref_put(&dump->kref, ipr_release_dump); | |
3081 | ||
3082 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); | |
3083 | if (ioa_cfg->sdt_state == DUMP_OBTAINED) | |
3084 | ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE); | |
3085 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
3086 | return; | |
3087 | } | |
3088 | ||
3089 | restart: | |
3090 | do { | |
3091 | did_work = 0; | |
3092 | if (!ioa_cfg->allow_cmds || !ioa_cfg->allow_ml_add_del) { | |
3093 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
3094 | return; | |
3095 | } | |
3096 | ||
3097 | list_for_each_entry(res, &ioa_cfg->used_res_q, queue) { | |
3098 | if (res->del_from_ml && res->sdev) { | |
3099 | did_work = 1; | |
3100 | sdev = res->sdev; | |
3101 | if (!scsi_device_get(sdev)) { | |
1da177e4 LT |
3102 | list_move_tail(&res->queue, &ioa_cfg->free_res_q); |
3103 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
3104 | scsi_remove_device(sdev); | |
3105 | scsi_device_put(sdev); | |
3106 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); | |
3107 | } | |
3108 | break; | |
3109 | } | |
3110 | } | |
3111 | } while(did_work); | |
3112 | ||
3113 | list_for_each_entry(res, &ioa_cfg->used_res_q, queue) { | |
3114 | if (res->add_to_ml) { | |
3e7ebdfa WB |
3115 | bus = res->bus; |
3116 | target = res->target; | |
3117 | lun = res->lun; | |
1121b794 | 3118 | res->add_to_ml = 0; |
1da177e4 LT |
3119 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); |
3120 | scsi_add_device(ioa_cfg->host, bus, target, lun); | |
3121 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); | |
3122 | goto restart; | |
3123 | } | |
3124 | } | |
3125 | ||
3126 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
ee959b00 | 3127 | kobject_uevent(&ioa_cfg->host->shost_dev.kobj, KOBJ_CHANGE); |
1da177e4 LT |
3128 | LEAVE; |
3129 | } | |
3130 | ||
3131 | #ifdef CONFIG_SCSI_IPR_TRACE | |
3132 | /** | |
3133 | * ipr_read_trace - Dump the adapter trace | |
2c3c8bea | 3134 | * @filp: open sysfs file |
1da177e4 | 3135 | * @kobj: kobject struct |
91a69029 | 3136 | * @bin_attr: bin_attribute struct |
1da177e4 LT |
3137 | * @buf: buffer |
3138 | * @off: offset | |
3139 | * @count: buffer size | |
3140 | * | |
3141 | * Return value: | |
3142 | * number of bytes printed to buffer | |
3143 | **/ | |
2c3c8bea | 3144 | static ssize_t ipr_read_trace(struct file *filp, struct kobject *kobj, |
91a69029 ZR |
3145 | struct bin_attribute *bin_attr, |
3146 | char *buf, loff_t off, size_t count) | |
1da177e4 | 3147 | { |
ee959b00 TJ |
3148 | struct device *dev = container_of(kobj, struct device, kobj); |
3149 | struct Scsi_Host *shost = class_to_shost(dev); | |
1da177e4 LT |
3150 | struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata; |
3151 | unsigned long lock_flags = 0; | |
d777aaf3 | 3152 | ssize_t ret; |
1da177e4 LT |
3153 | |
3154 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); | |
d777aaf3 AM |
3155 | ret = memory_read_from_buffer(buf, count, &off, ioa_cfg->trace, |
3156 | IPR_TRACE_SIZE); | |
1da177e4 | 3157 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); |
d777aaf3 AM |
3158 | |
3159 | return ret; | |
1da177e4 LT |
3160 | } |
3161 | ||
3162 | static struct bin_attribute ipr_trace_attr = { | |
3163 | .attr = { | |
3164 | .name = "trace", | |
3165 | .mode = S_IRUGO, | |
3166 | }, | |
3167 | .size = 0, | |
3168 | .read = ipr_read_trace, | |
3169 | }; | |
3170 | #endif | |
3171 | ||
3172 | /** | |
3173 | * ipr_show_fw_version - Show the firmware version | |
ee959b00 TJ |
3174 | * @dev: class device struct |
3175 | * @buf: buffer | |
1da177e4 LT |
3176 | * |
3177 | * Return value: | |
3178 | * number of bytes printed to buffer | |
3179 | **/ | |
ee959b00 TJ |
3180 | static ssize_t ipr_show_fw_version(struct device *dev, |
3181 | struct device_attribute *attr, char *buf) | |
1da177e4 | 3182 | { |
ee959b00 | 3183 | struct Scsi_Host *shost = class_to_shost(dev); |
1da177e4 LT |
3184 | struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata; |
3185 | struct ipr_inquiry_page3 *ucode_vpd = &ioa_cfg->vpd_cbs->page3_data; | |
3186 | unsigned long lock_flags = 0; | |
3187 | int len; | |
3188 | ||
3189 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); | |
3190 | len = snprintf(buf, PAGE_SIZE, "%02X%02X%02X%02X\n", | |
3191 | ucode_vpd->major_release, ucode_vpd->card_type, | |
3192 | ucode_vpd->minor_release[0], | |
3193 | ucode_vpd->minor_release[1]); | |
3194 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
3195 | return len; | |
3196 | } | |
3197 | ||
ee959b00 | 3198 | static struct device_attribute ipr_fw_version_attr = { |
1da177e4 LT |
3199 | .attr = { |
3200 | .name = "fw_version", | |
3201 | .mode = S_IRUGO, | |
3202 | }, | |
3203 | .show = ipr_show_fw_version, | |
3204 | }; | |
3205 | ||
3206 | /** | |
3207 | * ipr_show_log_level - Show the adapter's error logging level | |
ee959b00 TJ |
3208 | * @dev: class device struct |
3209 | * @buf: buffer | |
1da177e4 LT |
3210 | * |
3211 | * Return value: | |
3212 | * number of bytes printed to buffer | |
3213 | **/ | |
ee959b00 TJ |
3214 | static ssize_t ipr_show_log_level(struct device *dev, |
3215 | struct device_attribute *attr, char *buf) | |
1da177e4 | 3216 | { |
ee959b00 | 3217 | struct Scsi_Host *shost = class_to_shost(dev); |
1da177e4 LT |
3218 | struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata; |
3219 | unsigned long lock_flags = 0; | |
3220 | int len; | |
3221 | ||
3222 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); | |
3223 | len = snprintf(buf, PAGE_SIZE, "%d\n", ioa_cfg->log_level); | |
3224 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
3225 | return len; | |
3226 | } | |
3227 | ||
3228 | /** | |
3229 | * ipr_store_log_level - Change the adapter's error logging level | |
ee959b00 TJ |
3230 | * @dev: class device struct |
3231 | * @buf: buffer | |
1da177e4 LT |
3232 | * |
3233 | * Return value: | |
3234 | * number of bytes printed to buffer | |
3235 | **/ | |
ee959b00 TJ |
3236 | static ssize_t ipr_store_log_level(struct device *dev, |
3237 | struct device_attribute *attr, | |
1da177e4 LT |
3238 | const char *buf, size_t count) |
3239 | { | |
ee959b00 | 3240 | struct Scsi_Host *shost = class_to_shost(dev); |
1da177e4 LT |
3241 | struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata; |
3242 | unsigned long lock_flags = 0; | |
3243 | ||
3244 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); | |
3245 | ioa_cfg->log_level = simple_strtoul(buf, NULL, 10); | |
3246 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
3247 | return strlen(buf); | |
3248 | } | |
3249 | ||
ee959b00 | 3250 | static struct device_attribute ipr_log_level_attr = { |
1da177e4 LT |
3251 | .attr = { |
3252 | .name = "log_level", | |
3253 | .mode = S_IRUGO | S_IWUSR, | |
3254 | }, | |
3255 | .show = ipr_show_log_level, | |
3256 | .store = ipr_store_log_level | |
3257 | }; | |
3258 | ||
3259 | /** | |
3260 | * ipr_store_diagnostics - IOA Diagnostics interface | |
ee959b00 TJ |
3261 | * @dev: device struct |
3262 | * @buf: buffer | |
3263 | * @count: buffer size | |
1da177e4 LT |
3264 | * |
3265 | * This function will reset the adapter and wait a reasonable | |
3266 | * amount of time for any errors that the adapter might log. | |
3267 | * | |
3268 | * Return value: | |
3269 | * count on success / other on failure | |
3270 | **/ | |
ee959b00 TJ |
3271 | static ssize_t ipr_store_diagnostics(struct device *dev, |
3272 | struct device_attribute *attr, | |
1da177e4 LT |
3273 | const char *buf, size_t count) |
3274 | { | |
ee959b00 | 3275 | struct Scsi_Host *shost = class_to_shost(dev); |
1da177e4 LT |
3276 | struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata; |
3277 | unsigned long lock_flags = 0; | |
3278 | int rc = count; | |
3279 | ||
3280 | if (!capable(CAP_SYS_ADMIN)) | |
3281 | return -EACCES; | |
3282 | ||
1da177e4 | 3283 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); |
970ea294 BK |
3284 | while(ioa_cfg->in_reset_reload) { |
3285 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
3286 | wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload); | |
3287 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); | |
3288 | } | |
3289 | ||
1da177e4 LT |
3290 | ioa_cfg->errors_logged = 0; |
3291 | ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NORMAL); | |
3292 | ||
3293 | if (ioa_cfg->in_reset_reload) { | |
3294 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
3295 | wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload); | |
3296 | ||
3297 | /* Wait for a second for any errors to be logged */ | |
3298 | msleep(1000); | |
3299 | } else { | |
3300 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
3301 | return -EIO; | |
3302 | } | |
3303 | ||
3304 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); | |
3305 | if (ioa_cfg->in_reset_reload || ioa_cfg->errors_logged) | |
3306 | rc = -EIO; | |
3307 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
3308 | ||
3309 | return rc; | |
3310 | } | |
3311 | ||
ee959b00 | 3312 | static struct device_attribute ipr_diagnostics_attr = { |
1da177e4 LT |
3313 | .attr = { |
3314 | .name = "run_diagnostics", | |
3315 | .mode = S_IWUSR, | |
3316 | }, | |
3317 | .store = ipr_store_diagnostics | |
3318 | }; | |
3319 | ||
f37eb54b | 3320 | /** |
3321 | * ipr_show_adapter_state - Show the adapter's state | |
ee959b00 TJ |
3322 | * @class_dev: device struct |
3323 | * @buf: buffer | |
f37eb54b | 3324 | * |
3325 | * Return value: | |
3326 | * number of bytes printed to buffer | |
3327 | **/ | |
ee959b00 TJ |
3328 | static ssize_t ipr_show_adapter_state(struct device *dev, |
3329 | struct device_attribute *attr, char *buf) | |
f37eb54b | 3330 | { |
ee959b00 | 3331 | struct Scsi_Host *shost = class_to_shost(dev); |
f37eb54b | 3332 | struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata; |
3333 | unsigned long lock_flags = 0; | |
3334 | int len; | |
3335 | ||
3336 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); | |
3337 | if (ioa_cfg->ioa_is_dead) | |
3338 | len = snprintf(buf, PAGE_SIZE, "offline\n"); | |
3339 | else | |
3340 | len = snprintf(buf, PAGE_SIZE, "online\n"); | |
3341 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
3342 | return len; | |
3343 | } | |
3344 | ||
3345 | /** | |
3346 | * ipr_store_adapter_state - Change adapter state | |
ee959b00 TJ |
3347 | * @dev: device struct |
3348 | * @buf: buffer | |
3349 | * @count: buffer size | |
f37eb54b | 3350 | * |
3351 | * This function will change the adapter's state. | |
3352 | * | |
3353 | * Return value: | |
3354 | * count on success / other on failure | |
3355 | **/ | |
ee959b00 TJ |
3356 | static ssize_t ipr_store_adapter_state(struct device *dev, |
3357 | struct device_attribute *attr, | |
f37eb54b | 3358 | const char *buf, size_t count) |
3359 | { | |
ee959b00 | 3360 | struct Scsi_Host *shost = class_to_shost(dev); |
f37eb54b | 3361 | struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata; |
3362 | unsigned long lock_flags; | |
3363 | int result = count; | |
3364 | ||
3365 | if (!capable(CAP_SYS_ADMIN)) | |
3366 | return -EACCES; | |
3367 | ||
3368 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); | |
3369 | if (ioa_cfg->ioa_is_dead && !strncmp(buf, "online", 6)) { | |
3370 | ioa_cfg->ioa_is_dead = 0; | |
3371 | ioa_cfg->reset_retries = 0; | |
3372 | ioa_cfg->in_ioa_bringdown = 0; | |
3373 | ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE); | |
3374 | } | |
3375 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
3376 | wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload); | |
3377 | ||
3378 | return result; | |
3379 | } | |
3380 | ||
ee959b00 | 3381 | static struct device_attribute ipr_ioa_state_attr = { |
f37eb54b | 3382 | .attr = { |
49dd0961 | 3383 | .name = "online_state", |
f37eb54b | 3384 | .mode = S_IRUGO | S_IWUSR, |
3385 | }, | |
3386 | .show = ipr_show_adapter_state, | |
3387 | .store = ipr_store_adapter_state | |
3388 | }; | |
3389 | ||
1da177e4 LT |
3390 | /** |
3391 | * ipr_store_reset_adapter - Reset the adapter | |
ee959b00 TJ |
3392 | * @dev: device struct |
3393 | * @buf: buffer | |
3394 | * @count: buffer size | |
1da177e4 LT |
3395 | * |
3396 | * This function will reset the adapter. | |
3397 | * | |
3398 | * Return value: | |
3399 | * count on success / other on failure | |
3400 | **/ | |
ee959b00 TJ |
3401 | static ssize_t ipr_store_reset_adapter(struct device *dev, |
3402 | struct device_attribute *attr, | |
1da177e4 LT |
3403 | const char *buf, size_t count) |
3404 | { | |
ee959b00 | 3405 | struct Scsi_Host *shost = class_to_shost(dev); |
1da177e4 LT |
3406 | struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata; |
3407 | unsigned long lock_flags; | |
3408 | int result = count; | |
3409 | ||
3410 | if (!capable(CAP_SYS_ADMIN)) | |
3411 | return -EACCES; | |
3412 | ||
3413 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); | |
3414 | if (!ioa_cfg->in_reset_reload) | |
3415 | ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NORMAL); | |
3416 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
3417 | wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload); | |
3418 | ||
3419 | return result; | |
3420 | } | |
3421 | ||
ee959b00 | 3422 | static struct device_attribute ipr_ioa_reset_attr = { |
1da177e4 LT |
3423 | .attr = { |
3424 | .name = "reset_host", | |
3425 | .mode = S_IWUSR, | |
3426 | }, | |
3427 | .store = ipr_store_reset_adapter | |
3428 | }; | |
3429 | ||
3430 | /** | |
3431 | * ipr_alloc_ucode_buffer - Allocates a microcode download buffer | |
3432 | * @buf_len: buffer length | |
3433 | * | |
3434 | * Allocates a DMA'able buffer in chunks and assembles a scatter/gather | |
3435 | * list to use for microcode download | |
3436 | * | |
3437 | * Return value: | |
3438 | * pointer to sglist / NULL on failure | |
3439 | **/ | |
3440 | static struct ipr_sglist *ipr_alloc_ucode_buffer(int buf_len) | |
3441 | { | |
3442 | int sg_size, order, bsize_elem, num_elem, i, j; | |
3443 | struct ipr_sglist *sglist; | |
3444 | struct scatterlist *scatterlist; | |
3445 | struct page *page; | |
3446 | ||
3447 | /* Get the minimum size per scatter/gather element */ | |
3448 | sg_size = buf_len / (IPR_MAX_SGLIST - 1); | |
3449 | ||
3450 | /* Get the actual size per element */ | |
3451 | order = get_order(sg_size); | |
3452 | ||
3453 | /* Determine the actual number of bytes per element */ | |
3454 | bsize_elem = PAGE_SIZE * (1 << order); | |
3455 | ||
3456 | /* Determine the actual number of sg entries needed */ | |
3457 | if (buf_len % bsize_elem) | |
3458 | num_elem = (buf_len / bsize_elem) + 1; | |
3459 | else | |
3460 | num_elem = buf_len / bsize_elem; | |
3461 | ||
3462 | /* Allocate a scatter/gather list for the DMA */ | |
0bc42e35 | 3463 | sglist = kzalloc(sizeof(struct ipr_sglist) + |
1da177e4 LT |
3464 | (sizeof(struct scatterlist) * (num_elem - 1)), |
3465 | GFP_KERNEL); | |
3466 | ||
3467 | if (sglist == NULL) { | |
3468 | ipr_trace; | |
3469 | return NULL; | |
3470 | } | |
3471 | ||
1da177e4 | 3472 | scatterlist = sglist->scatterlist; |
45711f1a | 3473 | sg_init_table(scatterlist, num_elem); |
1da177e4 LT |
3474 | |
3475 | sglist->order = order; | |
3476 | sglist->num_sg = num_elem; | |
3477 | ||
3478 | /* Allocate a bunch of sg elements */ | |
3479 | for (i = 0; i < num_elem; i++) { | |
3480 | page = alloc_pages(GFP_KERNEL, order); | |
3481 | if (!page) { | |
3482 | ipr_trace; | |
3483 | ||
3484 | /* Free up what we already allocated */ | |
3485 | for (j = i - 1; j >= 0; j--) | |
45711f1a | 3486 | __free_pages(sg_page(&scatterlist[j]), order); |
1da177e4 LT |
3487 | kfree(sglist); |
3488 | return NULL; | |
3489 | } | |
3490 | ||
642f1490 | 3491 | sg_set_page(&scatterlist[i], page, 0, 0); |
1da177e4 LT |
3492 | } |
3493 | ||
3494 | return sglist; | |
3495 | } | |
3496 | ||
3497 | /** | |
3498 | * ipr_free_ucode_buffer - Frees a microcode download buffer | |
3499 | * @p_dnld: scatter/gather list pointer | |
3500 | * | |
3501 | * Free a DMA'able ucode download buffer previously allocated with | |
3502 | * ipr_alloc_ucode_buffer | |
3503 | * | |
3504 | * Return value: | |
3505 | * nothing | |
3506 | **/ | |
3507 | static void ipr_free_ucode_buffer(struct ipr_sglist *sglist) | |
3508 | { | |
3509 | int i; | |
3510 | ||
3511 | for (i = 0; i < sglist->num_sg; i++) | |
45711f1a | 3512 | __free_pages(sg_page(&sglist->scatterlist[i]), sglist->order); |
1da177e4 LT |
3513 | |
3514 | kfree(sglist); | |
3515 | } | |
3516 | ||
3517 | /** | |
3518 | * ipr_copy_ucode_buffer - Copy user buffer to kernel buffer | |
3519 | * @sglist: scatter/gather list pointer | |
3520 | * @buffer: buffer pointer | |
3521 | * @len: buffer length | |
3522 | * | |
3523 | * Copy a microcode image from a user buffer into a buffer allocated by | |
3524 | * ipr_alloc_ucode_buffer | |
3525 | * | |
3526 | * Return value: | |
3527 | * 0 on success / other on failure | |
3528 | **/ | |
3529 | static int ipr_copy_ucode_buffer(struct ipr_sglist *sglist, | |
3530 | u8 *buffer, u32 len) | |
3531 | { | |
3532 | int bsize_elem, i, result = 0; | |
3533 | struct scatterlist *scatterlist; | |
3534 | void *kaddr; | |
3535 | ||
3536 | /* Determine the actual number of bytes per element */ | |
3537 | bsize_elem = PAGE_SIZE * (1 << sglist->order); | |
3538 | ||
3539 | scatterlist = sglist->scatterlist; | |
3540 | ||
3541 | for (i = 0; i < (len / bsize_elem); i++, buffer += bsize_elem) { | |
45711f1a JA |
3542 | struct page *page = sg_page(&scatterlist[i]); |
3543 | ||
3544 | kaddr = kmap(page); | |
1da177e4 | 3545 | memcpy(kaddr, buffer, bsize_elem); |
45711f1a | 3546 | kunmap(page); |
1da177e4 LT |
3547 | |
3548 | scatterlist[i].length = bsize_elem; | |
3549 | ||
3550 | if (result != 0) { | |
3551 | ipr_trace; | |
3552 | return result; | |
3553 | } | |
3554 | } | |
3555 | ||
3556 | if (len % bsize_elem) { | |
45711f1a JA |
3557 | struct page *page = sg_page(&scatterlist[i]); |
3558 | ||
3559 | kaddr = kmap(page); | |
1da177e4 | 3560 | memcpy(kaddr, buffer, len % bsize_elem); |
45711f1a | 3561 | kunmap(page); |
1da177e4 LT |
3562 | |
3563 | scatterlist[i].length = len % bsize_elem; | |
3564 | } | |
3565 | ||
3566 | sglist->buffer_len = len; | |
3567 | return result; | |
3568 | } | |
3569 | ||
a32c055f WB |
3570 | /** |
3571 | * ipr_build_ucode_ioadl64 - Build a microcode download IOADL | |
3572 | * @ipr_cmd: ipr command struct | |
3573 | * @sglist: scatter/gather list | |
3574 | * | |
3575 | * Builds a microcode download IOA data list (IOADL). | |
3576 | * | |
3577 | **/ | |
3578 | static void ipr_build_ucode_ioadl64(struct ipr_cmnd *ipr_cmd, | |
3579 | struct ipr_sglist *sglist) | |
3580 | { | |
3581 | struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb; | |
3582 | struct ipr_ioadl64_desc *ioadl64 = ipr_cmd->i.ioadl64; | |
3583 | struct scatterlist *scatterlist = sglist->scatterlist; | |
3584 | int i; | |
3585 | ||
3586 | ipr_cmd->dma_use_sg = sglist->num_dma_sg; | |
3587 | ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ; | |
3588 | ioarcb->data_transfer_length = cpu_to_be32(sglist->buffer_len); | |
3589 | ||
3590 | ioarcb->ioadl_len = | |
3591 | cpu_to_be32(sizeof(struct ipr_ioadl64_desc) * ipr_cmd->dma_use_sg); | |
3592 | for (i = 0; i < ipr_cmd->dma_use_sg; i++) { | |
3593 | ioadl64[i].flags = cpu_to_be32(IPR_IOADL_FLAGS_WRITE); | |
3594 | ioadl64[i].data_len = cpu_to_be32(sg_dma_len(&scatterlist[i])); | |
3595 | ioadl64[i].address = cpu_to_be64(sg_dma_address(&scatterlist[i])); | |
3596 | } | |
3597 | ||
3598 | ioadl64[i-1].flags |= cpu_to_be32(IPR_IOADL_FLAGS_LAST); | |
3599 | } | |
3600 | ||
1da177e4 | 3601 | /** |
12baa420 | 3602 | * ipr_build_ucode_ioadl - Build a microcode download IOADL |
1da177e4 LT |
3603 | * @ipr_cmd: ipr command struct |
3604 | * @sglist: scatter/gather list | |
1da177e4 | 3605 | * |
12baa420 | 3606 | * Builds a microcode download IOA data list (IOADL). |
1da177e4 | 3607 | * |
1da177e4 | 3608 | **/ |
12baa420 | 3609 | static void ipr_build_ucode_ioadl(struct ipr_cmnd *ipr_cmd, |
3610 | struct ipr_sglist *sglist) | |
1da177e4 | 3611 | { |
1da177e4 | 3612 | struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb; |
a32c055f | 3613 | struct ipr_ioadl_desc *ioadl = ipr_cmd->i.ioadl; |
1da177e4 LT |
3614 | struct scatterlist *scatterlist = sglist->scatterlist; |
3615 | int i; | |
3616 | ||
12baa420 | 3617 | ipr_cmd->dma_use_sg = sglist->num_dma_sg; |
1da177e4 | 3618 | ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ; |
a32c055f WB |
3619 | ioarcb->data_transfer_length = cpu_to_be32(sglist->buffer_len); |
3620 | ||
3621 | ioarcb->ioadl_len = | |
1da177e4 LT |
3622 | cpu_to_be32(sizeof(struct ipr_ioadl_desc) * ipr_cmd->dma_use_sg); |
3623 | ||
3624 | for (i = 0; i < ipr_cmd->dma_use_sg; i++) { | |
3625 | ioadl[i].flags_and_data_len = | |
3626 | cpu_to_be32(IPR_IOADL_FLAGS_WRITE | sg_dma_len(&scatterlist[i])); | |
3627 | ioadl[i].address = | |
3628 | cpu_to_be32(sg_dma_address(&scatterlist[i])); | |
3629 | } | |
3630 | ||
12baa420 | 3631 | ioadl[i-1].flags_and_data_len |= |
3632 | cpu_to_be32(IPR_IOADL_FLAGS_LAST); | |
3633 | } | |
3634 | ||
3635 | /** | |
3636 | * ipr_update_ioa_ucode - Update IOA's microcode | |
3637 | * @ioa_cfg: ioa config struct | |
3638 | * @sglist: scatter/gather list | |
3639 | * | |
3640 | * Initiate an adapter reset to update the IOA's microcode | |
3641 | * | |
3642 | * Return value: | |
3643 | * 0 on success / -EIO on failure | |
3644 | **/ | |
3645 | static int ipr_update_ioa_ucode(struct ipr_ioa_cfg *ioa_cfg, | |
3646 | struct ipr_sglist *sglist) | |
3647 | { | |
3648 | unsigned long lock_flags; | |
3649 | ||
3650 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); | |
970ea294 BK |
3651 | while(ioa_cfg->in_reset_reload) { |
3652 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
3653 | wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload); | |
3654 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); | |
3655 | } | |
12baa420 | 3656 | |
3657 | if (ioa_cfg->ucode_sglist) { | |
3658 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
3659 | dev_err(&ioa_cfg->pdev->dev, | |
3660 | "Microcode download already in progress\n"); | |
3661 | return -EIO; | |
1da177e4 | 3662 | } |
12baa420 | 3663 | |
3664 | sglist->num_dma_sg = pci_map_sg(ioa_cfg->pdev, sglist->scatterlist, | |
3665 | sglist->num_sg, DMA_TO_DEVICE); | |
3666 | ||
3667 | if (!sglist->num_dma_sg) { | |
3668 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
3669 | dev_err(&ioa_cfg->pdev->dev, | |
3670 | "Failed to map microcode download buffer!\n"); | |
1da177e4 LT |
3671 | return -EIO; |
3672 | } | |
3673 | ||
12baa420 | 3674 | ioa_cfg->ucode_sglist = sglist; |
3675 | ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NORMAL); | |
3676 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
3677 | wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload); | |
3678 | ||
3679 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); | |
3680 | ioa_cfg->ucode_sglist = NULL; | |
3681 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
1da177e4 LT |
3682 | return 0; |
3683 | } | |
3684 | ||
3685 | /** | |
3686 | * ipr_store_update_fw - Update the firmware on the adapter | |
ee959b00 TJ |
3687 | * @class_dev: device struct |
3688 | * @buf: buffer | |
3689 | * @count: buffer size | |
1da177e4 LT |
3690 | * |
3691 | * This function will update the firmware on the adapter. | |
3692 | * | |
3693 | * Return value: | |
3694 | * count on success / other on failure | |
3695 | **/ | |
ee959b00 TJ |
3696 | static ssize_t ipr_store_update_fw(struct device *dev, |
3697 | struct device_attribute *attr, | |
3698 | const char *buf, size_t count) | |
1da177e4 | 3699 | { |
ee959b00 | 3700 | struct Scsi_Host *shost = class_to_shost(dev); |
1da177e4 LT |
3701 | struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata; |
3702 | struct ipr_ucode_image_header *image_hdr; | |
3703 | const struct firmware *fw_entry; | |
3704 | struct ipr_sglist *sglist; | |
1da177e4 LT |
3705 | char fname[100]; |
3706 | char *src; | |
3707 | int len, result, dnld_size; | |
3708 | ||
3709 | if (!capable(CAP_SYS_ADMIN)) | |
3710 | return -EACCES; | |
3711 | ||
3712 | len = snprintf(fname, 99, "%s", buf); | |
3713 | fname[len-1] = '\0'; | |
3714 | ||
3715 | if(request_firmware(&fw_entry, fname, &ioa_cfg->pdev->dev)) { | |
3716 | dev_err(&ioa_cfg->pdev->dev, "Firmware file %s not found\n", fname); | |
3717 | return -EIO; | |
3718 | } | |
3719 | ||
3720 | image_hdr = (struct ipr_ucode_image_header *)fw_entry->data; | |
3721 | ||
3722 | if (be32_to_cpu(image_hdr->header_length) > fw_entry->size || | |
3723 | (ioa_cfg->vpd_cbs->page3_data.card_type && | |
3724 | ioa_cfg->vpd_cbs->page3_data.card_type != image_hdr->card_type)) { | |
3725 | dev_err(&ioa_cfg->pdev->dev, "Invalid microcode buffer\n"); | |
3726 | release_firmware(fw_entry); | |
3727 | return -EINVAL; | |
3728 | } | |
3729 | ||
3730 | src = (u8 *)image_hdr + be32_to_cpu(image_hdr->header_length); | |
3731 | dnld_size = fw_entry->size - be32_to_cpu(image_hdr->header_length); | |
3732 | sglist = ipr_alloc_ucode_buffer(dnld_size); | |
3733 | ||
3734 | if (!sglist) { | |
3735 | dev_err(&ioa_cfg->pdev->dev, "Microcode buffer allocation failed\n"); | |
3736 | release_firmware(fw_entry); | |
3737 | return -ENOMEM; | |
3738 | } | |
3739 | ||
3740 | result = ipr_copy_ucode_buffer(sglist, src, dnld_size); | |
3741 | ||
3742 | if (result) { | |
3743 | dev_err(&ioa_cfg->pdev->dev, | |
3744 | "Microcode buffer copy to DMA buffer failed\n"); | |
12baa420 | 3745 | goto out; |
1da177e4 LT |
3746 | } |
3747 | ||
12baa420 | 3748 | result = ipr_update_ioa_ucode(ioa_cfg, sglist); |
1da177e4 | 3749 | |
12baa420 | 3750 | if (!result) |
3751 | result = count; | |
3752 | out: | |
1da177e4 LT |
3753 | ipr_free_ucode_buffer(sglist); |
3754 | release_firmware(fw_entry); | |
12baa420 | 3755 | return result; |
1da177e4 LT |
3756 | } |
3757 | ||
ee959b00 | 3758 | static struct device_attribute ipr_update_fw_attr = { |
1da177e4 LT |
3759 | .attr = { |
3760 | .name = "update_fw", | |
3761 | .mode = S_IWUSR, | |
3762 | }, | |
3763 | .store = ipr_store_update_fw | |
3764 | }; | |
3765 | ||
75576bb9 WB |
3766 | /** |
3767 | * ipr_show_fw_type - Show the adapter's firmware type. | |
3768 | * @dev: class device struct | |
3769 | * @buf: buffer | |
3770 | * | |
3771 | * Return value: | |
3772 | * number of bytes printed to buffer | |
3773 | **/ | |
3774 | static ssize_t ipr_show_fw_type(struct device *dev, | |
3775 | struct device_attribute *attr, char *buf) | |
3776 | { | |
3777 | struct Scsi_Host *shost = class_to_shost(dev); | |
3778 | struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata; | |
3779 | unsigned long lock_flags = 0; | |
3780 | int len; | |
3781 | ||
3782 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); | |
3783 | len = snprintf(buf, PAGE_SIZE, "%d\n", ioa_cfg->sis64); | |
3784 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
3785 | return len; | |
3786 | } | |
3787 | ||
3788 | static struct device_attribute ipr_ioa_fw_type_attr = { | |
3789 | .attr = { | |
3790 | .name = "fw_type", | |
3791 | .mode = S_IRUGO, | |
3792 | }, | |
3793 | .show = ipr_show_fw_type | |
3794 | }; | |
3795 | ||
ee959b00 | 3796 | static struct device_attribute *ipr_ioa_attrs[] = { |
1da177e4 LT |
3797 | &ipr_fw_version_attr, |
3798 | &ipr_log_level_attr, | |
3799 | &ipr_diagnostics_attr, | |
f37eb54b | 3800 | &ipr_ioa_state_attr, |
1da177e4 LT |
3801 | &ipr_ioa_reset_attr, |
3802 | &ipr_update_fw_attr, | |
75576bb9 | 3803 | &ipr_ioa_fw_type_attr, |
1da177e4 LT |
3804 | NULL, |
3805 | }; | |
3806 | ||
3807 | #ifdef CONFIG_SCSI_IPR_DUMP | |
3808 | /** | |
3809 | * ipr_read_dump - Dump the adapter | |
2c3c8bea | 3810 | * @filp: open sysfs file |
1da177e4 | 3811 | * @kobj: kobject struct |
91a69029 | 3812 | * @bin_attr: bin_attribute struct |
1da177e4 LT |
3813 | * @buf: buffer |
3814 | * @off: offset | |
3815 | * @count: buffer size | |
3816 | * | |
3817 | * Return value: | |
3818 | * number of bytes printed to buffer | |
3819 | **/ | |
2c3c8bea | 3820 | static ssize_t ipr_read_dump(struct file *filp, struct kobject *kobj, |
91a69029 ZR |
3821 | struct bin_attribute *bin_attr, |
3822 | char *buf, loff_t off, size_t count) | |
1da177e4 | 3823 | { |
ee959b00 | 3824 | struct device *cdev = container_of(kobj, struct device, kobj); |
1da177e4 LT |
3825 | struct Scsi_Host *shost = class_to_shost(cdev); |
3826 | struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata; | |
3827 | struct ipr_dump *dump; | |
3828 | unsigned long lock_flags = 0; | |
3829 | char *src; | |
3830 | int len; | |
3831 | size_t rc = count; | |
3832 | ||
3833 | if (!capable(CAP_SYS_ADMIN)) | |
3834 | return -EACCES; | |
3835 | ||
3836 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); | |
3837 | dump = ioa_cfg->dump; | |
3838 | ||
3839 | if (ioa_cfg->sdt_state != DUMP_OBTAINED || !dump) { | |
3840 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
3841 | return 0; | |
3842 | } | |
3843 | kref_get(&dump->kref); | |
3844 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
3845 | ||
3846 | if (off > dump->driver_dump.hdr.len) { | |
3847 | kref_put(&dump->kref, ipr_release_dump); | |
3848 | return 0; | |
3849 | } | |
3850 | ||
3851 | if (off + count > dump->driver_dump.hdr.len) { | |
3852 | count = dump->driver_dump.hdr.len - off; | |
3853 | rc = count; | |
3854 | } | |
3855 | ||
3856 | if (count && off < sizeof(dump->driver_dump)) { | |
3857 | if (off + count > sizeof(dump->driver_dump)) | |
3858 | len = sizeof(dump->driver_dump) - off; | |
3859 | else | |
3860 | len = count; | |
3861 | src = (u8 *)&dump->driver_dump + off; | |
3862 | memcpy(buf, src, len); | |
3863 | buf += len; | |
3864 | off += len; | |
3865 | count -= len; | |
3866 | } | |
3867 | ||
3868 | off -= sizeof(dump->driver_dump); | |
3869 | ||
3870 | if (count && off < offsetof(struct ipr_ioa_dump, ioa_data)) { | |
3871 | if (off + count > offsetof(struct ipr_ioa_dump, ioa_data)) | |
3872 | len = offsetof(struct ipr_ioa_dump, ioa_data) - off; | |
3873 | else | |
3874 | len = count; | |
3875 | src = (u8 *)&dump->ioa_dump + off; | |
3876 | memcpy(buf, src, len); | |
3877 | buf += len; | |
3878 | off += len; | |
3879 | count -= len; | |
3880 | } | |
3881 | ||
3882 | off -= offsetof(struct ipr_ioa_dump, ioa_data); | |
3883 | ||
3884 | while (count) { | |
3885 | if ((off & PAGE_MASK) != ((off + count) & PAGE_MASK)) | |
3886 | len = PAGE_ALIGN(off) - off; | |
3887 | else | |
3888 | len = count; | |
3889 | src = (u8 *)dump->ioa_dump.ioa_data[(off & PAGE_MASK) >> PAGE_SHIFT]; | |
3890 | src += off & ~PAGE_MASK; | |
3891 | memcpy(buf, src, len); | |
3892 | buf += len; | |
3893 | off += len; | |
3894 | count -= len; | |
3895 | } | |
3896 | ||
3897 | kref_put(&dump->kref, ipr_release_dump); | |
3898 | return rc; | |
3899 | } | |
3900 | ||
3901 | /** | |
3902 | * ipr_alloc_dump - Prepare for adapter dump | |
3903 | * @ioa_cfg: ioa config struct | |
3904 | * | |
3905 | * Return value: | |
3906 | * 0 on success / other on failure | |
3907 | **/ | |
3908 | static int ipr_alloc_dump(struct ipr_ioa_cfg *ioa_cfg) | |
3909 | { | |
3910 | struct ipr_dump *dump; | |
3911 | unsigned long lock_flags = 0; | |
3912 | ||
0bc42e35 | 3913 | dump = kzalloc(sizeof(struct ipr_dump), GFP_KERNEL); |
1da177e4 LT |
3914 | |
3915 | if (!dump) { | |
3916 | ipr_err("Dump memory allocation failed\n"); | |
3917 | return -ENOMEM; | |
3918 | } | |
3919 | ||
1da177e4 LT |
3920 | kref_init(&dump->kref); |
3921 | dump->ioa_cfg = ioa_cfg; | |
3922 | ||
3923 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); | |
3924 | ||
3925 | if (INACTIVE != ioa_cfg->sdt_state) { | |
3926 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
3927 | kfree(dump); | |
3928 | return 0; | |
3929 | } | |
3930 | ||
3931 | ioa_cfg->dump = dump; | |
3932 | ioa_cfg->sdt_state = WAIT_FOR_DUMP; | |
3933 | if (ioa_cfg->ioa_is_dead && !ioa_cfg->dump_taken) { | |
3934 | ioa_cfg->dump_taken = 1; | |
3935 | schedule_work(&ioa_cfg->work_q); | |
3936 | } | |
3937 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
3938 | ||
1da177e4 LT |
3939 | return 0; |
3940 | } | |
3941 | ||
3942 | /** | |
3943 | * ipr_free_dump - Free adapter dump memory | |
3944 | * @ioa_cfg: ioa config struct | |
3945 | * | |
3946 | * Return value: | |
3947 | * 0 on success / other on failure | |
3948 | **/ | |
3949 | static int ipr_free_dump(struct ipr_ioa_cfg *ioa_cfg) | |
3950 | { | |
3951 | struct ipr_dump *dump; | |
3952 | unsigned long lock_flags = 0; | |
3953 | ||
3954 | ENTER; | |
3955 | ||
3956 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); | |
3957 | dump = ioa_cfg->dump; | |
3958 | if (!dump) { | |
3959 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
3960 | return 0; | |
3961 | } | |
3962 | ||
3963 | ioa_cfg->dump = NULL; | |
3964 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
3965 | ||
3966 | kref_put(&dump->kref, ipr_release_dump); | |
3967 | ||
3968 | LEAVE; | |
3969 | return 0; | |
3970 | } | |
3971 | ||
3972 | /** | |
3973 | * ipr_write_dump - Setup dump state of adapter | |
2c3c8bea | 3974 | * @filp: open sysfs file |
1da177e4 | 3975 | * @kobj: kobject struct |
91a69029 | 3976 | * @bin_attr: bin_attribute struct |
1da177e4 LT |
3977 | * @buf: buffer |
3978 | * @off: offset | |
3979 | * @count: buffer size | |
3980 | * | |
3981 | * Return value: | |
3982 | * number of bytes printed to buffer | |
3983 | **/ | |
2c3c8bea | 3984 | static ssize_t ipr_write_dump(struct file *filp, struct kobject *kobj, |
91a69029 ZR |
3985 | struct bin_attribute *bin_attr, |
3986 | char *buf, loff_t off, size_t count) | |
1da177e4 | 3987 | { |
ee959b00 | 3988 | struct device *cdev = container_of(kobj, struct device, kobj); |
1da177e4 LT |
3989 | struct Scsi_Host *shost = class_to_shost(cdev); |
3990 | struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata; | |
3991 | int rc; | |
3992 | ||
3993 | if (!capable(CAP_SYS_ADMIN)) | |
3994 | return -EACCES; | |
3995 | ||
3996 | if (buf[0] == '1') | |
3997 | rc = ipr_alloc_dump(ioa_cfg); | |
3998 | else if (buf[0] == '0') | |
3999 | rc = ipr_free_dump(ioa_cfg); | |
4000 | else | |
4001 | return -EINVAL; | |
4002 | ||
4003 | if (rc) | |
4004 | return rc; | |
4005 | else | |
4006 | return count; | |
4007 | } | |
4008 | ||
4009 | static struct bin_attribute ipr_dump_attr = { | |
4010 | .attr = { | |
4011 | .name = "dump", | |
4012 | .mode = S_IRUSR | S_IWUSR, | |
4013 | }, | |
4014 | .size = 0, | |
4015 | .read = ipr_read_dump, | |
4016 | .write = ipr_write_dump | |
4017 | }; | |
4018 | #else | |
4019 | static int ipr_free_dump(struct ipr_ioa_cfg *ioa_cfg) { return 0; }; | |
4020 | #endif | |
4021 | ||
4022 | /** | |
4023 | * ipr_change_queue_depth - Change the device's queue depth | |
4024 | * @sdev: scsi device struct | |
4025 | * @qdepth: depth to set | |
e881a172 | 4026 | * @reason: calling context |
1da177e4 LT |
4027 | * |
4028 | * Return value: | |
4029 | * actual depth set | |
4030 | **/ | |
e881a172 MC |
4031 | static int ipr_change_queue_depth(struct scsi_device *sdev, int qdepth, |
4032 | int reason) | |
1da177e4 | 4033 | { |
35a39691 BK |
4034 | struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)sdev->host->hostdata; |
4035 | struct ipr_resource_entry *res; | |
4036 | unsigned long lock_flags = 0; | |
4037 | ||
e881a172 MC |
4038 | if (reason != SCSI_QDEPTH_DEFAULT) |
4039 | return -EOPNOTSUPP; | |
4040 | ||
35a39691 BK |
4041 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); |
4042 | res = (struct ipr_resource_entry *)sdev->hostdata; | |
4043 | ||
4044 | if (res && ipr_is_gata(res) && qdepth > IPR_MAX_CMD_PER_ATA_LUN) | |
4045 | qdepth = IPR_MAX_CMD_PER_ATA_LUN; | |
4046 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
4047 | ||
1da177e4 LT |
4048 | scsi_adjust_queue_depth(sdev, scsi_get_tag_type(sdev), qdepth); |
4049 | return sdev->queue_depth; | |
4050 | } | |
4051 | ||
4052 | /** | |
4053 | * ipr_change_queue_type - Change the device's queue type | |
4054 | * @dsev: scsi device struct | |
4055 | * @tag_type: type of tags to use | |
4056 | * | |
4057 | * Return value: | |
4058 | * actual queue type set | |
4059 | **/ | |
4060 | static int ipr_change_queue_type(struct scsi_device *sdev, int tag_type) | |
4061 | { | |
4062 | struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)sdev->host->hostdata; | |
4063 | struct ipr_resource_entry *res; | |
4064 | unsigned long lock_flags = 0; | |
4065 | ||
4066 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); | |
4067 | res = (struct ipr_resource_entry *)sdev->hostdata; | |
4068 | ||
4069 | if (res) { | |
4070 | if (ipr_is_gscsi(res) && sdev->tagged_supported) { | |
4071 | /* | |
4072 | * We don't bother quiescing the device here since the | |
4073 | * adapter firmware does it for us. | |
4074 | */ | |
4075 | scsi_set_tag_type(sdev, tag_type); | |
4076 | ||
4077 | if (tag_type) | |
4078 | scsi_activate_tcq(sdev, sdev->queue_depth); | |
4079 | else | |
4080 | scsi_deactivate_tcq(sdev, sdev->queue_depth); | |
4081 | } else | |
4082 | tag_type = 0; | |
4083 | } else | |
4084 | tag_type = 0; | |
4085 | ||
4086 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
4087 | return tag_type; | |
4088 | } | |
4089 | ||
4090 | /** | |
4091 | * ipr_show_adapter_handle - Show the adapter's resource handle for this device | |
4092 | * @dev: device struct | |
46d74563 | 4093 | * @attr: device attribute structure |
1da177e4 LT |
4094 | * @buf: buffer |
4095 | * | |
4096 | * Return value: | |
4097 | * number of bytes printed to buffer | |
4098 | **/ | |
10523b3b | 4099 | static ssize_t ipr_show_adapter_handle(struct device *dev, struct device_attribute *attr, char *buf) |
1da177e4 LT |
4100 | { |
4101 | struct scsi_device *sdev = to_scsi_device(dev); | |
4102 | struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)sdev->host->hostdata; | |
4103 | struct ipr_resource_entry *res; | |
4104 | unsigned long lock_flags = 0; | |
4105 | ssize_t len = -ENXIO; | |
4106 | ||
4107 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); | |
4108 | res = (struct ipr_resource_entry *)sdev->hostdata; | |
4109 | if (res) | |
3e7ebdfa | 4110 | len = snprintf(buf, PAGE_SIZE, "%08X\n", res->res_handle); |
1da177e4 LT |
4111 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); |
4112 | return len; | |
4113 | } | |
4114 | ||
4115 | static struct device_attribute ipr_adapter_handle_attr = { | |
4116 | .attr = { | |
4117 | .name = "adapter_handle", | |
4118 | .mode = S_IRUSR, | |
4119 | }, | |
4120 | .show = ipr_show_adapter_handle | |
4121 | }; | |
4122 | ||
3e7ebdfa | 4123 | /** |
5adcbeb3 WB |
4124 | * ipr_show_resource_path - Show the resource path or the resource address for |
4125 | * this device. | |
3e7ebdfa | 4126 | * @dev: device struct |
46d74563 | 4127 | * @attr: device attribute structure |
3e7ebdfa WB |
4128 | * @buf: buffer |
4129 | * | |
4130 | * Return value: | |
4131 | * number of bytes printed to buffer | |
4132 | **/ | |
4133 | static ssize_t ipr_show_resource_path(struct device *dev, struct device_attribute *attr, char *buf) | |
4134 | { | |
4135 | struct scsi_device *sdev = to_scsi_device(dev); | |
4136 | struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)sdev->host->hostdata; | |
4137 | struct ipr_resource_entry *res; | |
4138 | unsigned long lock_flags = 0; | |
4139 | ssize_t len = -ENXIO; | |
4140 | char buffer[IPR_MAX_RES_PATH_LENGTH]; | |
4141 | ||
4142 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); | |
4143 | res = (struct ipr_resource_entry *)sdev->hostdata; | |
5adcbeb3 | 4144 | if (res && ioa_cfg->sis64) |
3e7ebdfa | 4145 | len = snprintf(buf, PAGE_SIZE, "%s\n", |
5adcbeb3 WB |
4146 | ipr_format_res_path(res->res_path, buffer, |
4147 | sizeof(buffer))); | |
4148 | else if (res) | |
4149 | len = snprintf(buf, PAGE_SIZE, "%d:%d:%d:%d\n", ioa_cfg->host->host_no, | |
4150 | res->bus, res->target, res->lun); | |
4151 | ||
3e7ebdfa WB |
4152 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); |
4153 | return len; | |
4154 | } | |
4155 | ||
4156 | static struct device_attribute ipr_resource_path_attr = { | |
4157 | .attr = { | |
4158 | .name = "resource_path", | |
75576bb9 | 4159 | .mode = S_IRUGO, |
3e7ebdfa WB |
4160 | }, |
4161 | .show = ipr_show_resource_path | |
4162 | }; | |
4163 | ||
46d74563 WB |
4164 | /** |
4165 | * ipr_show_device_id - Show the device_id for this device. | |
4166 | * @dev: device struct | |
4167 | * @attr: device attribute structure | |
4168 | * @buf: buffer | |
4169 | * | |
4170 | * Return value: | |
4171 | * number of bytes printed to buffer | |
4172 | **/ | |
4173 | static ssize_t ipr_show_device_id(struct device *dev, struct device_attribute *attr, char *buf) | |
4174 | { | |
4175 | struct scsi_device *sdev = to_scsi_device(dev); | |
4176 | struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)sdev->host->hostdata; | |
4177 | struct ipr_resource_entry *res; | |
4178 | unsigned long lock_flags = 0; | |
4179 | ssize_t len = -ENXIO; | |
4180 | ||
4181 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); | |
4182 | res = (struct ipr_resource_entry *)sdev->hostdata; | |
4183 | if (res && ioa_cfg->sis64) | |
4184 | len = snprintf(buf, PAGE_SIZE, "0x%llx\n", res->dev_id); | |
4185 | else if (res) | |
4186 | len = snprintf(buf, PAGE_SIZE, "0x%llx\n", res->lun_wwn); | |
4187 | ||
4188 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
4189 | return len; | |
4190 | } | |
4191 | ||
4192 | static struct device_attribute ipr_device_id_attr = { | |
4193 | .attr = { | |
4194 | .name = "device_id", | |
4195 | .mode = S_IRUGO, | |
4196 | }, | |
4197 | .show = ipr_show_device_id | |
4198 | }; | |
4199 | ||
75576bb9 WB |
4200 | /** |
4201 | * ipr_show_resource_type - Show the resource type for this device. | |
4202 | * @dev: device struct | |
46d74563 | 4203 | * @attr: device attribute structure |
75576bb9 WB |
4204 | * @buf: buffer |
4205 | * | |
4206 | * Return value: | |
4207 | * number of bytes printed to buffer | |
4208 | **/ | |
4209 | static ssize_t ipr_show_resource_type(struct device *dev, struct device_attribute *attr, char *buf) | |
4210 | { | |
4211 | struct scsi_device *sdev = to_scsi_device(dev); | |
4212 | struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)sdev->host->hostdata; | |
4213 | struct ipr_resource_entry *res; | |
4214 | unsigned long lock_flags = 0; | |
4215 | ssize_t len = -ENXIO; | |
4216 | ||
4217 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); | |
4218 | res = (struct ipr_resource_entry *)sdev->hostdata; | |
4219 | ||
4220 | if (res) | |
4221 | len = snprintf(buf, PAGE_SIZE, "%x\n", res->type); | |
4222 | ||
4223 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
4224 | return len; | |
4225 | } | |
4226 | ||
4227 | static struct device_attribute ipr_resource_type_attr = { | |
4228 | .attr = { | |
4229 | .name = "resource_type", | |
4230 | .mode = S_IRUGO, | |
4231 | }, | |
4232 | .show = ipr_show_resource_type | |
4233 | }; | |
4234 | ||
1da177e4 LT |
4235 | static struct device_attribute *ipr_dev_attrs[] = { |
4236 | &ipr_adapter_handle_attr, | |
3e7ebdfa | 4237 | &ipr_resource_path_attr, |
46d74563 | 4238 | &ipr_device_id_attr, |
75576bb9 | 4239 | &ipr_resource_type_attr, |
1da177e4 LT |
4240 | NULL, |
4241 | }; | |
4242 | ||
4243 | /** | |
4244 | * ipr_biosparam - Return the HSC mapping | |
4245 | * @sdev: scsi device struct | |
4246 | * @block_device: block device pointer | |
4247 | * @capacity: capacity of the device | |
4248 | * @parm: Array containing returned HSC values. | |
4249 | * | |
4250 | * This function generates the HSC parms that fdisk uses. | |
4251 | * We want to make sure we return something that places partitions | |
4252 | * on 4k boundaries for best performance with the IOA. | |
4253 | * | |
4254 | * Return value: | |
4255 | * 0 on success | |
4256 | **/ | |
4257 | static int ipr_biosparam(struct scsi_device *sdev, | |
4258 | struct block_device *block_device, | |
4259 | sector_t capacity, int *parm) | |
4260 | { | |
4261 | int heads, sectors; | |
4262 | sector_t cylinders; | |
4263 | ||
4264 | heads = 128; | |
4265 | sectors = 32; | |
4266 | ||
4267 | cylinders = capacity; | |
4268 | sector_div(cylinders, (128 * 32)); | |
4269 | ||
4270 | /* return result */ | |
4271 | parm[0] = heads; | |
4272 | parm[1] = sectors; | |
4273 | parm[2] = cylinders; | |
4274 | ||
4275 | return 0; | |
4276 | } | |
4277 | ||
35a39691 BK |
4278 | /** |
4279 | * ipr_find_starget - Find target based on bus/target. | |
4280 | * @starget: scsi target struct | |
4281 | * | |
4282 | * Return value: | |
4283 | * resource entry pointer if found / NULL if not found | |
4284 | **/ | |
4285 | static struct ipr_resource_entry *ipr_find_starget(struct scsi_target *starget) | |
4286 | { | |
4287 | struct Scsi_Host *shost = dev_to_shost(&starget->dev); | |
4288 | struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) shost->hostdata; | |
4289 | struct ipr_resource_entry *res; | |
4290 | ||
4291 | list_for_each_entry(res, &ioa_cfg->used_res_q, queue) { | |
3e7ebdfa WB |
4292 | if ((res->bus == starget->channel) && |
4293 | (res->target == starget->id) && | |
4294 | (res->lun == 0)) { | |
35a39691 BK |
4295 | return res; |
4296 | } | |
4297 | } | |
4298 | ||
4299 | return NULL; | |
4300 | } | |
4301 | ||
4302 | static struct ata_port_info sata_port_info; | |
4303 | ||
4304 | /** | |
4305 | * ipr_target_alloc - Prepare for commands to a SCSI target | |
4306 | * @starget: scsi target struct | |
4307 | * | |
4308 | * If the device is a SATA device, this function allocates an | |
4309 | * ATA port with libata, else it does nothing. | |
4310 | * | |
4311 | * Return value: | |
4312 | * 0 on success / non-0 on failure | |
4313 | **/ | |
4314 | static int ipr_target_alloc(struct scsi_target *starget) | |
4315 | { | |
4316 | struct Scsi_Host *shost = dev_to_shost(&starget->dev); | |
4317 | struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) shost->hostdata; | |
4318 | struct ipr_sata_port *sata_port; | |
4319 | struct ata_port *ap; | |
4320 | struct ipr_resource_entry *res; | |
4321 | unsigned long lock_flags; | |
4322 | ||
4323 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); | |
4324 | res = ipr_find_starget(starget); | |
4325 | starget->hostdata = NULL; | |
4326 | ||
4327 | if (res && ipr_is_gata(res)) { | |
4328 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
4329 | sata_port = kzalloc(sizeof(*sata_port), GFP_KERNEL); | |
4330 | if (!sata_port) | |
4331 | return -ENOMEM; | |
4332 | ||
4333 | ap = ata_sas_port_alloc(&ioa_cfg->ata_host, &sata_port_info, shost); | |
4334 | if (ap) { | |
4335 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); | |
4336 | sata_port->ioa_cfg = ioa_cfg; | |
4337 | sata_port->ap = ap; | |
4338 | sata_port->res = res; | |
4339 | ||
4340 | res->sata_port = sata_port; | |
4341 | ap->private_data = sata_port; | |
4342 | starget->hostdata = sata_port; | |
4343 | } else { | |
4344 | kfree(sata_port); | |
4345 | return -ENOMEM; | |
4346 | } | |
4347 | } | |
4348 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
4349 | ||
4350 | return 0; | |
4351 | } | |
4352 | ||
4353 | /** | |
4354 | * ipr_target_destroy - Destroy a SCSI target | |
4355 | * @starget: scsi target struct | |
4356 | * | |
4357 | * If the device was a SATA device, this function frees the libata | |
4358 | * ATA port, else it does nothing. | |
4359 | * | |
4360 | **/ | |
4361 | static void ipr_target_destroy(struct scsi_target *starget) | |
4362 | { | |
4363 | struct ipr_sata_port *sata_port = starget->hostdata; | |
3e7ebdfa WB |
4364 | struct Scsi_Host *shost = dev_to_shost(&starget->dev); |
4365 | struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) shost->hostdata; | |
4366 | ||
4367 | if (ioa_cfg->sis64) { | |
4368 | if (starget->channel == IPR_ARRAY_VIRTUAL_BUS) | |
4369 | clear_bit(starget->id, ioa_cfg->array_ids); | |
4370 | else if (starget->channel == IPR_VSET_VIRTUAL_BUS) | |
4371 | clear_bit(starget->id, ioa_cfg->vset_ids); | |
4372 | else if (starget->channel == 0) | |
4373 | clear_bit(starget->id, ioa_cfg->target_ids); | |
4374 | } | |
35a39691 BK |
4375 | |
4376 | if (sata_port) { | |
4377 | starget->hostdata = NULL; | |
4378 | ata_sas_port_destroy(sata_port->ap); | |
4379 | kfree(sata_port); | |
4380 | } | |
4381 | } | |
4382 | ||
4383 | /** | |
4384 | * ipr_find_sdev - Find device based on bus/target/lun. | |
4385 | * @sdev: scsi device struct | |
4386 | * | |
4387 | * Return value: | |
4388 | * resource entry pointer if found / NULL if not found | |
4389 | **/ | |
4390 | static struct ipr_resource_entry *ipr_find_sdev(struct scsi_device *sdev) | |
4391 | { | |
4392 | struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) sdev->host->hostdata; | |
4393 | struct ipr_resource_entry *res; | |
4394 | ||
4395 | list_for_each_entry(res, &ioa_cfg->used_res_q, queue) { | |
3e7ebdfa WB |
4396 | if ((res->bus == sdev->channel) && |
4397 | (res->target == sdev->id) && | |
4398 | (res->lun == sdev->lun)) | |
35a39691 BK |
4399 | return res; |
4400 | } | |
4401 | ||
4402 | return NULL; | |
4403 | } | |
4404 | ||
1da177e4 LT |
4405 | /** |
4406 | * ipr_slave_destroy - Unconfigure a SCSI device | |
4407 | * @sdev: scsi device struct | |
4408 | * | |
4409 | * Return value: | |
4410 | * nothing | |
4411 | **/ | |
4412 | static void ipr_slave_destroy(struct scsi_device *sdev) | |
4413 | { | |
4414 | struct ipr_resource_entry *res; | |
4415 | struct ipr_ioa_cfg *ioa_cfg; | |
4416 | unsigned long lock_flags = 0; | |
4417 | ||
4418 | ioa_cfg = (struct ipr_ioa_cfg *) sdev->host->hostdata; | |
4419 | ||
4420 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); | |
4421 | res = (struct ipr_resource_entry *) sdev->hostdata; | |
4422 | if (res) { | |
35a39691 | 4423 | if (res->sata_port) |
3e4ec344 | 4424 | res->sata_port->ap->link.device[0].class = ATA_DEV_NONE; |
1da177e4 LT |
4425 | sdev->hostdata = NULL; |
4426 | res->sdev = NULL; | |
35a39691 | 4427 | res->sata_port = NULL; |
1da177e4 LT |
4428 | } |
4429 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
4430 | } | |
4431 | ||
4432 | /** | |
4433 | * ipr_slave_configure - Configure a SCSI device | |
4434 | * @sdev: scsi device struct | |
4435 | * | |
4436 | * This function configures the specified scsi device. | |
4437 | * | |
4438 | * Return value: | |
4439 | * 0 on success | |
4440 | **/ | |
4441 | static int ipr_slave_configure(struct scsi_device *sdev) | |
4442 | { | |
4443 | struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) sdev->host->hostdata; | |
4444 | struct ipr_resource_entry *res; | |
dd406ef8 | 4445 | struct ata_port *ap = NULL; |
1da177e4 | 4446 | unsigned long lock_flags = 0; |
3e7ebdfa | 4447 | char buffer[IPR_MAX_RES_PATH_LENGTH]; |
1da177e4 LT |
4448 | |
4449 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); | |
4450 | res = sdev->hostdata; | |
4451 | if (res) { | |
4452 | if (ipr_is_af_dasd_device(res)) | |
4453 | sdev->type = TYPE_RAID; | |
0726ce26 | 4454 | if (ipr_is_af_dasd_device(res) || ipr_is_ioa_resource(res)) { |
1da177e4 | 4455 | sdev->scsi_level = 4; |
0726ce26 | 4456 | sdev->no_uld_attach = 1; |
4457 | } | |
1da177e4 | 4458 | if (ipr_is_vset_device(res)) { |
242f9dcb JA |
4459 | blk_queue_rq_timeout(sdev->request_queue, |
4460 | IPR_VSET_RW_TIMEOUT); | |
086fa5ff | 4461 | blk_queue_max_hw_sectors(sdev->request_queue, IPR_VSET_MAX_SECTORS); |
1da177e4 | 4462 | } |
dd406ef8 BK |
4463 | if (ipr_is_gata(res) && res->sata_port) |
4464 | ap = res->sata_port->ap; | |
4465 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
4466 | ||
4467 | if (ap) { | |
35a39691 | 4468 | scsi_adjust_queue_depth(sdev, 0, IPR_MAX_CMD_PER_ATA_LUN); |
dd406ef8 BK |
4469 | ata_sas_slave_configure(sdev, ap); |
4470 | } else | |
35a39691 | 4471 | scsi_adjust_queue_depth(sdev, 0, sdev->host->cmd_per_lun); |
3e7ebdfa WB |
4472 | if (ioa_cfg->sis64) |
4473 | sdev_printk(KERN_INFO, sdev, "Resource path: %s\n", | |
5adcbeb3 WB |
4474 | ipr_format_res_path(res->res_path, buffer, |
4475 | sizeof(buffer))); | |
dd406ef8 | 4476 | return 0; |
1da177e4 LT |
4477 | } |
4478 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
4479 | return 0; | |
4480 | } | |
4481 | ||
35a39691 BK |
4482 | /** |
4483 | * ipr_ata_slave_alloc - Prepare for commands to a SATA device | |
4484 | * @sdev: scsi device struct | |
4485 | * | |
4486 | * This function initializes an ATA port so that future commands | |
4487 | * sent through queuecommand will work. | |
4488 | * | |
4489 | * Return value: | |
4490 | * 0 on success | |
4491 | **/ | |
4492 | static int ipr_ata_slave_alloc(struct scsi_device *sdev) | |
4493 | { | |
4494 | struct ipr_sata_port *sata_port = NULL; | |
4495 | int rc = -ENXIO; | |
4496 | ||
4497 | ENTER; | |
4498 | if (sdev->sdev_target) | |
4499 | sata_port = sdev->sdev_target->hostdata; | |
4500 | if (sata_port) | |
4501 | rc = ata_sas_port_init(sata_port->ap); | |
4502 | if (rc) | |
4503 | ipr_slave_destroy(sdev); | |
4504 | ||
4505 | LEAVE; | |
4506 | return rc; | |
4507 | } | |
4508 | ||
1da177e4 LT |
4509 | /** |
4510 | * ipr_slave_alloc - Prepare for commands to a device. | |
4511 | * @sdev: scsi device struct | |
4512 | * | |
4513 | * This function saves a pointer to the resource entry | |
4514 | * in the scsi device struct if the device exists. We | |
4515 | * can then use this pointer in ipr_queuecommand when | |
4516 | * handling new commands. | |
4517 | * | |
4518 | * Return value: | |
692aebfc | 4519 | * 0 on success / -ENXIO if device does not exist |
1da177e4 LT |
4520 | **/ |
4521 | static int ipr_slave_alloc(struct scsi_device *sdev) | |
4522 | { | |
4523 | struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) sdev->host->hostdata; | |
4524 | struct ipr_resource_entry *res; | |
4525 | unsigned long lock_flags; | |
692aebfc | 4526 | int rc = -ENXIO; |
1da177e4 LT |
4527 | |
4528 | sdev->hostdata = NULL; | |
4529 | ||
4530 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); | |
4531 | ||
35a39691 BK |
4532 | res = ipr_find_sdev(sdev); |
4533 | if (res) { | |
4534 | res->sdev = sdev; | |
4535 | res->add_to_ml = 0; | |
4536 | res->in_erp = 0; | |
4537 | sdev->hostdata = res; | |
4538 | if (!ipr_is_naca_model(res)) | |
4539 | res->needs_sync_complete = 1; | |
4540 | rc = 0; | |
4541 | if (ipr_is_gata(res)) { | |
4542 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
4543 | return ipr_ata_slave_alloc(sdev); | |
1da177e4 LT |
4544 | } |
4545 | } | |
4546 | ||
4547 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
4548 | ||
692aebfc | 4549 | return rc; |
1da177e4 LT |
4550 | } |
4551 | ||
4552 | /** | |
4553 | * ipr_eh_host_reset - Reset the host adapter | |
4554 | * @scsi_cmd: scsi command struct | |
4555 | * | |
4556 | * Return value: | |
4557 | * SUCCESS / FAILED | |
4558 | **/ | |
df0ae249 | 4559 | static int __ipr_eh_host_reset(struct scsi_cmnd * scsi_cmd) |
1da177e4 LT |
4560 | { |
4561 | struct ipr_ioa_cfg *ioa_cfg; | |
4562 | int rc; | |
4563 | ||
4564 | ENTER; | |
4565 | ioa_cfg = (struct ipr_ioa_cfg *) scsi_cmd->device->host->hostdata; | |
4566 | ||
4567 | dev_err(&ioa_cfg->pdev->dev, | |
4568 | "Adapter being reset as a result of error recovery.\n"); | |
4569 | ||
4570 | if (WAIT_FOR_DUMP == ioa_cfg->sdt_state) | |
4571 | ioa_cfg->sdt_state = GET_DUMP; | |
4572 | ||
4573 | rc = ipr_reset_reload(ioa_cfg, IPR_SHUTDOWN_ABBREV); | |
4574 | ||
4575 | LEAVE; | |
4576 | return rc; | |
4577 | } | |
4578 | ||
df0ae249 JG |
4579 | static int ipr_eh_host_reset(struct scsi_cmnd * cmd) |
4580 | { | |
4581 | int rc; | |
4582 | ||
4583 | spin_lock_irq(cmd->device->host->host_lock); | |
4584 | rc = __ipr_eh_host_reset(cmd); | |
4585 | spin_unlock_irq(cmd->device->host->host_lock); | |
4586 | ||
4587 | return rc; | |
4588 | } | |
4589 | ||
c6513096 BK |
4590 | /** |
4591 | * ipr_device_reset - Reset the device | |
4592 | * @ioa_cfg: ioa config struct | |
4593 | * @res: resource entry struct | |
4594 | * | |
4595 | * This function issues a device reset to the affected device. | |
4596 | * If the device is a SCSI device, a LUN reset will be sent | |
4597 | * to the device first. If that does not work, a target reset | |
35a39691 BK |
4598 | * will be sent. If the device is a SATA device, a PHY reset will |
4599 | * be sent. | |
c6513096 BK |
4600 | * |
4601 | * Return value: | |
4602 | * 0 on success / non-zero on failure | |
4603 | **/ | |
4604 | static int ipr_device_reset(struct ipr_ioa_cfg *ioa_cfg, | |
4605 | struct ipr_resource_entry *res) | |
4606 | { | |
4607 | struct ipr_cmnd *ipr_cmd; | |
4608 | struct ipr_ioarcb *ioarcb; | |
4609 | struct ipr_cmd_pkt *cmd_pkt; | |
35a39691 | 4610 | struct ipr_ioarcb_ata_regs *regs; |
c6513096 BK |
4611 | u32 ioasc; |
4612 | ||
4613 | ENTER; | |
4614 | ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg); | |
4615 | ioarcb = &ipr_cmd->ioarcb; | |
4616 | cmd_pkt = &ioarcb->cmd_pkt; | |
a32c055f WB |
4617 | |
4618 | if (ipr_cmd->ioa_cfg->sis64) { | |
4619 | regs = &ipr_cmd->i.ata_ioadl.regs; | |
4620 | ioarcb->add_cmd_parms_offset = cpu_to_be16(sizeof(*ioarcb)); | |
4621 | } else | |
4622 | regs = &ioarcb->u.add_data.u.regs; | |
c6513096 | 4623 | |
3e7ebdfa | 4624 | ioarcb->res_handle = res->res_handle; |
c6513096 BK |
4625 | cmd_pkt->request_type = IPR_RQTYPE_IOACMD; |
4626 | cmd_pkt->cdb[0] = IPR_RESET_DEVICE; | |
35a39691 BK |
4627 | if (ipr_is_gata(res)) { |
4628 | cmd_pkt->cdb[2] = IPR_ATA_PHY_RESET; | |
a32c055f | 4629 | ioarcb->add_cmd_parms_len = cpu_to_be16(sizeof(regs->flags)); |
35a39691 BK |
4630 | regs->flags |= IPR_ATA_FLAG_STATUS_ON_GOOD_COMPLETION; |
4631 | } | |
c6513096 BK |
4632 | |
4633 | ipr_send_blocking_cmd(ipr_cmd, ipr_timeout, IPR_DEVICE_RESET_TIMEOUT); | |
96d21f00 | 4634 | ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc); |
c6513096 | 4635 | list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q); |
96d21f00 WB |
4636 | if (ipr_is_gata(res) && res->sata_port && ioasc != IPR_IOASC_IOA_WAS_RESET) { |
4637 | if (ipr_cmd->ioa_cfg->sis64) | |
4638 | memcpy(&res->sata_port->ioasa, &ipr_cmd->s.ioasa64.u.gata, | |
4639 | sizeof(struct ipr_ioasa_gata)); | |
4640 | else | |
4641 | memcpy(&res->sata_port->ioasa, &ipr_cmd->s.ioasa.u.gata, | |
4642 | sizeof(struct ipr_ioasa_gata)); | |
4643 | } | |
c6513096 BK |
4644 | |
4645 | LEAVE; | |
4646 | return (IPR_IOASC_SENSE_KEY(ioasc) ? -EIO : 0); | |
4647 | } | |
4648 | ||
35a39691 BK |
4649 | /** |
4650 | * ipr_sata_reset - Reset the SATA port | |
cc0680a5 | 4651 | * @link: SATA link to reset |
35a39691 BK |
4652 | * @classes: class of the attached device |
4653 | * | |
cc0680a5 | 4654 | * This function issues a SATA phy reset to the affected ATA link. |
35a39691 BK |
4655 | * |
4656 | * Return value: | |
4657 | * 0 on success / non-zero on failure | |
4658 | **/ | |
cc0680a5 | 4659 | static int ipr_sata_reset(struct ata_link *link, unsigned int *classes, |
120bda35 | 4660 | unsigned long deadline) |
35a39691 | 4661 | { |
cc0680a5 | 4662 | struct ipr_sata_port *sata_port = link->ap->private_data; |
35a39691 BK |
4663 | struct ipr_ioa_cfg *ioa_cfg = sata_port->ioa_cfg; |
4664 | struct ipr_resource_entry *res; | |
4665 | unsigned long lock_flags = 0; | |
4666 | int rc = -ENXIO; | |
4667 | ||
4668 | ENTER; | |
4669 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); | |
73d98ff0 BK |
4670 | while(ioa_cfg->in_reset_reload) { |
4671 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
4672 | wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload); | |
4673 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); | |
4674 | } | |
4675 | ||
35a39691 BK |
4676 | res = sata_port->res; |
4677 | if (res) { | |
4678 | rc = ipr_device_reset(ioa_cfg, res); | |
3e7ebdfa | 4679 | *classes = res->ata_class; |
35a39691 BK |
4680 | } |
4681 | ||
4682 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
4683 | LEAVE; | |
4684 | return rc; | |
4685 | } | |
4686 | ||
1da177e4 LT |
4687 | /** |
4688 | * ipr_eh_dev_reset - Reset the device | |
4689 | * @scsi_cmd: scsi command struct | |
4690 | * | |
4691 | * This function issues a device reset to the affected device. | |
4692 | * A LUN reset will be sent to the device first. If that does | |
4693 | * not work, a target reset will be sent. | |
4694 | * | |
4695 | * Return value: | |
4696 | * SUCCESS / FAILED | |
4697 | **/ | |
94d0e7b8 | 4698 | static int __ipr_eh_dev_reset(struct scsi_cmnd * scsi_cmd) |
1da177e4 LT |
4699 | { |
4700 | struct ipr_cmnd *ipr_cmd; | |
4701 | struct ipr_ioa_cfg *ioa_cfg; | |
4702 | struct ipr_resource_entry *res; | |
35a39691 BK |
4703 | struct ata_port *ap; |
4704 | int rc = 0; | |
1da177e4 LT |
4705 | |
4706 | ENTER; | |
4707 | ioa_cfg = (struct ipr_ioa_cfg *) scsi_cmd->device->host->hostdata; | |
4708 | res = scsi_cmd->device->hostdata; | |
4709 | ||
eeb88307 | 4710 | if (!res) |
1da177e4 LT |
4711 | return FAILED; |
4712 | ||
4713 | /* | |
4714 | * If we are currently going through reset/reload, return failed. This will force the | |
4715 | * mid-layer to call ipr_eh_host_reset, which will then go to sleep and wait for the | |
4716 | * reset to complete | |
4717 | */ | |
4718 | if (ioa_cfg->in_reset_reload) | |
4719 | return FAILED; | |
4720 | if (ioa_cfg->ioa_is_dead) | |
4721 | return FAILED; | |
4722 | ||
4723 | list_for_each_entry(ipr_cmd, &ioa_cfg->pending_q, queue) { | |
3e7ebdfa | 4724 | if (ipr_cmd->ioarcb.res_handle == res->res_handle) { |
1da177e4 LT |
4725 | if (ipr_cmd->scsi_cmd) |
4726 | ipr_cmd->done = ipr_scsi_eh_done; | |
24d6f2b5 BK |
4727 | if (ipr_cmd->qc) |
4728 | ipr_cmd->done = ipr_sata_eh_done; | |
7402ecef BK |
4729 | if (ipr_cmd->qc && !(ipr_cmd->qc->flags & ATA_QCFLAG_FAILED)) { |
4730 | ipr_cmd->qc->err_mask |= AC_ERR_TIMEOUT; | |
4731 | ipr_cmd->qc->flags |= ATA_QCFLAG_FAILED; | |
4732 | } | |
1da177e4 LT |
4733 | } |
4734 | } | |
4735 | ||
4736 | res->resetting_device = 1; | |
fb3ed3cb | 4737 | scmd_printk(KERN_ERR, scsi_cmd, "Resetting device\n"); |
35a39691 BK |
4738 | |
4739 | if (ipr_is_gata(res) && res->sata_port) { | |
4740 | ap = res->sata_port->ap; | |
4741 | spin_unlock_irq(scsi_cmd->device->host->host_lock); | |
a1efdaba | 4742 | ata_std_error_handler(ap); |
35a39691 | 4743 | spin_lock_irq(scsi_cmd->device->host->host_lock); |
5af23d26 BK |
4744 | |
4745 | list_for_each_entry(ipr_cmd, &ioa_cfg->pending_q, queue) { | |
3e7ebdfa | 4746 | if (ipr_cmd->ioarcb.res_handle == res->res_handle) { |
5af23d26 BK |
4747 | rc = -EIO; |
4748 | break; | |
4749 | } | |
4750 | } | |
35a39691 BK |
4751 | } else |
4752 | rc = ipr_device_reset(ioa_cfg, res); | |
1da177e4 LT |
4753 | res->resetting_device = 0; |
4754 | ||
1da177e4 | 4755 | LEAVE; |
c6513096 | 4756 | return (rc ? FAILED : SUCCESS); |
1da177e4 LT |
4757 | } |
4758 | ||
94d0e7b8 JG |
4759 | static int ipr_eh_dev_reset(struct scsi_cmnd * cmd) |
4760 | { | |
4761 | int rc; | |
4762 | ||
4763 | spin_lock_irq(cmd->device->host->host_lock); | |
4764 | rc = __ipr_eh_dev_reset(cmd); | |
4765 | spin_unlock_irq(cmd->device->host->host_lock); | |
4766 | ||
4767 | return rc; | |
4768 | } | |
4769 | ||
1da177e4 LT |
4770 | /** |
4771 | * ipr_bus_reset_done - Op done function for bus reset. | |
4772 | * @ipr_cmd: ipr command struct | |
4773 | * | |
4774 | * This function is the op done function for a bus reset | |
4775 | * | |
4776 | * Return value: | |
4777 | * none | |
4778 | **/ | |
4779 | static void ipr_bus_reset_done(struct ipr_cmnd *ipr_cmd) | |
4780 | { | |
4781 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; | |
4782 | struct ipr_resource_entry *res; | |
4783 | ||
4784 | ENTER; | |
3e7ebdfa WB |
4785 | if (!ioa_cfg->sis64) |
4786 | list_for_each_entry(res, &ioa_cfg->used_res_q, queue) { | |
4787 | if (res->res_handle == ipr_cmd->ioarcb.res_handle) { | |
4788 | scsi_report_bus_reset(ioa_cfg->host, res->bus); | |
4789 | break; | |
4790 | } | |
1da177e4 | 4791 | } |
1da177e4 LT |
4792 | |
4793 | /* | |
4794 | * If abort has not completed, indicate the reset has, else call the | |
4795 | * abort's done function to wake the sleeping eh thread | |
4796 | */ | |
4797 | if (ipr_cmd->sibling->sibling) | |
4798 | ipr_cmd->sibling->sibling = NULL; | |
4799 | else | |
4800 | ipr_cmd->sibling->done(ipr_cmd->sibling); | |
4801 | ||
4802 | list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q); | |
4803 | LEAVE; | |
4804 | } | |
4805 | ||
4806 | /** | |
4807 | * ipr_abort_timeout - An abort task has timed out | |
4808 | * @ipr_cmd: ipr command struct | |
4809 | * | |
4810 | * This function handles when an abort task times out. If this | |
4811 | * happens we issue a bus reset since we have resources tied | |
4812 | * up that must be freed before returning to the midlayer. | |
4813 | * | |
4814 | * Return value: | |
4815 | * none | |
4816 | **/ | |
4817 | static void ipr_abort_timeout(struct ipr_cmnd *ipr_cmd) | |
4818 | { | |
4819 | struct ipr_cmnd *reset_cmd; | |
4820 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; | |
4821 | struct ipr_cmd_pkt *cmd_pkt; | |
4822 | unsigned long lock_flags = 0; | |
4823 | ||
4824 | ENTER; | |
4825 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); | |
4826 | if (ipr_cmd->completion.done || ioa_cfg->in_reset_reload) { | |
4827 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
4828 | return; | |
4829 | } | |
4830 | ||
fb3ed3cb | 4831 | sdev_printk(KERN_ERR, ipr_cmd->u.sdev, "Abort timed out. Resetting bus.\n"); |
1da177e4 LT |
4832 | reset_cmd = ipr_get_free_ipr_cmnd(ioa_cfg); |
4833 | ipr_cmd->sibling = reset_cmd; | |
4834 | reset_cmd->sibling = ipr_cmd; | |
4835 | reset_cmd->ioarcb.res_handle = ipr_cmd->ioarcb.res_handle; | |
4836 | cmd_pkt = &reset_cmd->ioarcb.cmd_pkt; | |
4837 | cmd_pkt->request_type = IPR_RQTYPE_IOACMD; | |
4838 | cmd_pkt->cdb[0] = IPR_RESET_DEVICE; | |
4839 | cmd_pkt->cdb[2] = IPR_RESET_TYPE_SELECT | IPR_BUS_RESET; | |
4840 | ||
4841 | ipr_do_req(reset_cmd, ipr_bus_reset_done, ipr_timeout, IPR_DEVICE_RESET_TIMEOUT); | |
4842 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
4843 | LEAVE; | |
4844 | } | |
4845 | ||
4846 | /** | |
4847 | * ipr_cancel_op - Cancel specified op | |
4848 | * @scsi_cmd: scsi command struct | |
4849 | * | |
4850 | * This function cancels specified op. | |
4851 | * | |
4852 | * Return value: | |
4853 | * SUCCESS / FAILED | |
4854 | **/ | |
4855 | static int ipr_cancel_op(struct scsi_cmnd * scsi_cmd) | |
4856 | { | |
4857 | struct ipr_cmnd *ipr_cmd; | |
4858 | struct ipr_ioa_cfg *ioa_cfg; | |
4859 | struct ipr_resource_entry *res; | |
4860 | struct ipr_cmd_pkt *cmd_pkt; | |
4861 | u32 ioasc; | |
4862 | int op_found = 0; | |
4863 | ||
4864 | ENTER; | |
4865 | ioa_cfg = (struct ipr_ioa_cfg *)scsi_cmd->device->host->hostdata; | |
4866 | res = scsi_cmd->device->hostdata; | |
4867 | ||
8fa728a2 JG |
4868 | /* If we are currently going through reset/reload, return failed. |
4869 | * This will force the mid-layer to call ipr_eh_host_reset, | |
4870 | * which will then go to sleep and wait for the reset to complete | |
4871 | */ | |
4872 | if (ioa_cfg->in_reset_reload || ioa_cfg->ioa_is_dead) | |
4873 | return FAILED; | |
04d9768f | 4874 | if (!res || !ipr_is_gscsi(res)) |
1da177e4 LT |
4875 | return FAILED; |
4876 | ||
4877 | list_for_each_entry(ipr_cmd, &ioa_cfg->pending_q, queue) { | |
4878 | if (ipr_cmd->scsi_cmd == scsi_cmd) { | |
4879 | ipr_cmd->done = ipr_scsi_eh_done; | |
4880 | op_found = 1; | |
4881 | break; | |
4882 | } | |
4883 | } | |
4884 | ||
4885 | if (!op_found) | |
4886 | return SUCCESS; | |
4887 | ||
4888 | ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg); | |
3e7ebdfa | 4889 | ipr_cmd->ioarcb.res_handle = res->res_handle; |
1da177e4 LT |
4890 | cmd_pkt = &ipr_cmd->ioarcb.cmd_pkt; |
4891 | cmd_pkt->request_type = IPR_RQTYPE_IOACMD; | |
4892 | cmd_pkt->cdb[0] = IPR_CANCEL_ALL_REQUESTS; | |
4893 | ipr_cmd->u.sdev = scsi_cmd->device; | |
4894 | ||
fb3ed3cb BK |
4895 | scmd_printk(KERN_ERR, scsi_cmd, "Aborting command: %02X\n", |
4896 | scsi_cmd->cmnd[0]); | |
1da177e4 | 4897 | ipr_send_blocking_cmd(ipr_cmd, ipr_abort_timeout, IPR_CANCEL_ALL_TIMEOUT); |
96d21f00 | 4898 | ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc); |
1da177e4 LT |
4899 | |
4900 | /* | |
4901 | * If the abort task timed out and we sent a bus reset, we will get | |
4902 | * one the following responses to the abort | |
4903 | */ | |
4904 | if (ioasc == IPR_IOASC_BUS_WAS_RESET || ioasc == IPR_IOASC_SYNC_REQUIRED) { | |
4905 | ioasc = 0; | |
4906 | ipr_trace; | |
4907 | } | |
4908 | ||
4909 | list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q); | |
ee0a90fa | 4910 | if (!ipr_is_naca_model(res)) |
4911 | res->needs_sync_complete = 1; | |
1da177e4 LT |
4912 | |
4913 | LEAVE; | |
4914 | return (IPR_IOASC_SENSE_KEY(ioasc) ? FAILED : SUCCESS); | |
4915 | } | |
4916 | ||
4917 | /** | |
4918 | * ipr_eh_abort - Abort a single op | |
4919 | * @scsi_cmd: scsi command struct | |
4920 | * | |
4921 | * Return value: | |
4922 | * SUCCESS / FAILED | |
4923 | **/ | |
4924 | static int ipr_eh_abort(struct scsi_cmnd * scsi_cmd) | |
4925 | { | |
8fa728a2 JG |
4926 | unsigned long flags; |
4927 | int rc; | |
1da177e4 LT |
4928 | |
4929 | ENTER; | |
1da177e4 | 4930 | |
8fa728a2 JG |
4931 | spin_lock_irqsave(scsi_cmd->device->host->host_lock, flags); |
4932 | rc = ipr_cancel_op(scsi_cmd); | |
4933 | spin_unlock_irqrestore(scsi_cmd->device->host->host_lock, flags); | |
1da177e4 LT |
4934 | |
4935 | LEAVE; | |
8fa728a2 | 4936 | return rc; |
1da177e4 LT |
4937 | } |
4938 | ||
4939 | /** | |
4940 | * ipr_handle_other_interrupt - Handle "other" interrupts | |
4941 | * @ioa_cfg: ioa config struct | |
634651fa | 4942 | * @int_reg: interrupt register |
1da177e4 LT |
4943 | * |
4944 | * Return value: | |
4945 | * IRQ_NONE / IRQ_HANDLED | |
4946 | **/ | |
634651fa WB |
4947 | static irqreturn_t ipr_handle_other_interrupt(struct ipr_ioa_cfg *ioa_cfg, |
4948 | volatile u32 int_reg) | |
1da177e4 LT |
4949 | { |
4950 | irqreturn_t rc = IRQ_HANDLED; | |
4951 | ||
4952 | if (int_reg & IPR_PCII_IOA_TRANS_TO_OPER) { | |
4953 | /* Mask the interrupt */ | |
4954 | writel(IPR_PCII_IOA_TRANS_TO_OPER, ioa_cfg->regs.set_interrupt_mask_reg); | |
4955 | ||
4956 | /* Clear the interrupt */ | |
4957 | writel(IPR_PCII_IOA_TRANS_TO_OPER, ioa_cfg->regs.clr_interrupt_reg); | |
4958 | int_reg = readl(ioa_cfg->regs.sense_interrupt_reg); | |
4959 | ||
4960 | list_del(&ioa_cfg->reset_cmd->queue); | |
4961 | del_timer(&ioa_cfg->reset_cmd->timer); | |
4962 | ipr_reset_ioa_job(ioa_cfg->reset_cmd); | |
4963 | } else { | |
4964 | if (int_reg & IPR_PCII_IOA_UNIT_CHECKED) | |
4965 | ioa_cfg->ioa_unit_checked = 1; | |
4966 | else | |
4967 | dev_err(&ioa_cfg->pdev->dev, | |
4968 | "Permanent IOA failure. 0x%08X\n", int_reg); | |
4969 | ||
4970 | if (WAIT_FOR_DUMP == ioa_cfg->sdt_state) | |
4971 | ioa_cfg->sdt_state = GET_DUMP; | |
4972 | ||
4973 | ipr_mask_and_clear_interrupts(ioa_cfg, ~0); | |
4974 | ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE); | |
4975 | } | |
4976 | ||
4977 | return rc; | |
4978 | } | |
4979 | ||
3feeb89d WB |
4980 | /** |
4981 | * ipr_isr_eh - Interrupt service routine error handler | |
4982 | * @ioa_cfg: ioa config struct | |
4983 | * @msg: message to log | |
4984 | * | |
4985 | * Return value: | |
4986 | * none | |
4987 | **/ | |
4988 | static void ipr_isr_eh(struct ipr_ioa_cfg *ioa_cfg, char *msg) | |
4989 | { | |
4990 | ioa_cfg->errors_logged++; | |
4991 | dev_err(&ioa_cfg->pdev->dev, "%s\n", msg); | |
4992 | ||
4993 | if (WAIT_FOR_DUMP == ioa_cfg->sdt_state) | |
4994 | ioa_cfg->sdt_state = GET_DUMP; | |
4995 | ||
4996 | ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE); | |
4997 | } | |
4998 | ||
1da177e4 LT |
4999 | /** |
5000 | * ipr_isr - Interrupt service routine | |
5001 | * @irq: irq number | |
5002 | * @devp: pointer to ioa config struct | |
1da177e4 LT |
5003 | * |
5004 | * Return value: | |
5005 | * IRQ_NONE / IRQ_HANDLED | |
5006 | **/ | |
7d12e780 | 5007 | static irqreturn_t ipr_isr(int irq, void *devp) |
1da177e4 LT |
5008 | { |
5009 | struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)devp; | |
5010 | unsigned long lock_flags = 0; | |
634651fa | 5011 | volatile u32 int_reg, int_mask_reg; |
1da177e4 LT |
5012 | u32 ioasc; |
5013 | u16 cmd_index; | |
3feeb89d | 5014 | int num_hrrq = 0; |
1da177e4 LT |
5015 | struct ipr_cmnd *ipr_cmd; |
5016 | irqreturn_t rc = IRQ_NONE; | |
5017 | ||
5018 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); | |
5019 | ||
5020 | /* If interrupts are disabled, ignore the interrupt */ | |
5021 | if (!ioa_cfg->allow_interrupts) { | |
5022 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
5023 | return IRQ_NONE; | |
5024 | } | |
5025 | ||
634651fa WB |
5026 | int_mask_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg32); |
5027 | int_reg = readl(ioa_cfg->regs.sense_interrupt_reg32) & ~int_mask_reg; | |
5028 | ||
5029 | /* If an interrupt on the adapter did not occur, ignore it. | |
5030 | * Or in the case of SIS 64, check for a stage change interrupt. | |
5031 | */ | |
5032 | if (unlikely((int_reg & IPR_PCII_OPER_INTERRUPTS) == 0)) { | |
5033 | if (ioa_cfg->sis64) { | |
5034 | int_mask_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg); | |
5035 | int_reg = readl(ioa_cfg->regs.sense_interrupt_reg) & ~int_mask_reg; | |
5036 | if (int_reg & IPR_PCII_IPL_STAGE_CHANGE) { | |
5037 | ||
5038 | /* clear stage change */ | |
5039 | writel(IPR_PCII_IPL_STAGE_CHANGE, ioa_cfg->regs.clr_interrupt_reg); | |
5040 | int_reg = readl(ioa_cfg->regs.sense_interrupt_reg) & ~int_mask_reg; | |
5041 | list_del(&ioa_cfg->reset_cmd->queue); | |
5042 | del_timer(&ioa_cfg->reset_cmd->timer); | |
5043 | ipr_reset_ioa_job(ioa_cfg->reset_cmd); | |
5044 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
5045 | return IRQ_HANDLED; | |
5046 | } | |
5047 | } | |
5048 | ||
5049 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
5050 | return IRQ_NONE; | |
5051 | } | |
5052 | ||
1da177e4 LT |
5053 | while (1) { |
5054 | ipr_cmd = NULL; | |
5055 | ||
5056 | while ((be32_to_cpu(*ioa_cfg->hrrq_curr) & IPR_HRRQ_TOGGLE_BIT) == | |
5057 | ioa_cfg->toggle_bit) { | |
5058 | ||
5059 | cmd_index = (be32_to_cpu(*ioa_cfg->hrrq_curr) & | |
5060 | IPR_HRRQ_REQ_RESP_HANDLE_MASK) >> IPR_HRRQ_REQ_RESP_HANDLE_SHIFT; | |
5061 | ||
5062 | if (unlikely(cmd_index >= IPR_NUM_CMD_BLKS)) { | |
3feeb89d | 5063 | ipr_isr_eh(ioa_cfg, "Invalid response handle from IOA"); |
1da177e4 LT |
5064 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); |
5065 | return IRQ_HANDLED; | |
5066 | } | |
5067 | ||
5068 | ipr_cmd = ioa_cfg->ipr_cmnd_list[cmd_index]; | |
5069 | ||
96d21f00 | 5070 | ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc); |
1da177e4 LT |
5071 | |
5072 | ipr_trc_hook(ipr_cmd, IPR_TRACE_FINISH, ioasc); | |
5073 | ||
5074 | list_del(&ipr_cmd->queue); | |
5075 | del_timer(&ipr_cmd->timer); | |
5076 | ipr_cmd->done(ipr_cmd); | |
5077 | ||
5078 | rc = IRQ_HANDLED; | |
5079 | ||
5080 | if (ioa_cfg->hrrq_curr < ioa_cfg->hrrq_end) { | |
5081 | ioa_cfg->hrrq_curr++; | |
5082 | } else { | |
5083 | ioa_cfg->hrrq_curr = ioa_cfg->hrrq_start; | |
5084 | ioa_cfg->toggle_bit ^= 1u; | |
5085 | } | |
5086 | } | |
5087 | ||
5088 | if (ipr_cmd != NULL) { | |
5089 | /* Clear the PCI interrupt */ | |
3feeb89d | 5090 | do { |
214777ba | 5091 | writel(IPR_PCII_HRRQ_UPDATED, ioa_cfg->regs.clr_interrupt_reg32); |
634651fa | 5092 | int_reg = readl(ioa_cfg->regs.sense_interrupt_reg32) & ~int_mask_reg; |
3feeb89d WB |
5093 | } while (int_reg & IPR_PCII_HRRQ_UPDATED && |
5094 | num_hrrq++ < IPR_MAX_HRRQ_RETRIES); | |
5095 | ||
5096 | if (int_reg & IPR_PCII_HRRQ_UPDATED) { | |
5097 | ipr_isr_eh(ioa_cfg, "Error clearing HRRQ"); | |
5098 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
5099 | return IRQ_HANDLED; | |
5100 | } | |
5101 | ||
1da177e4 LT |
5102 | } else |
5103 | break; | |
5104 | } | |
5105 | ||
5106 | if (unlikely(rc == IRQ_NONE)) | |
634651fa | 5107 | rc = ipr_handle_other_interrupt(ioa_cfg, int_reg); |
1da177e4 LT |
5108 | |
5109 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
5110 | return rc; | |
5111 | } | |
5112 | ||
a32c055f WB |
5113 | /** |
5114 | * ipr_build_ioadl64 - Build a scatter/gather list and map the buffer | |
5115 | * @ioa_cfg: ioa config struct | |
5116 | * @ipr_cmd: ipr command struct | |
5117 | * | |
5118 | * Return value: | |
5119 | * 0 on success / -1 on failure | |
5120 | **/ | |
5121 | static int ipr_build_ioadl64(struct ipr_ioa_cfg *ioa_cfg, | |
5122 | struct ipr_cmnd *ipr_cmd) | |
5123 | { | |
5124 | int i, nseg; | |
5125 | struct scatterlist *sg; | |
5126 | u32 length; | |
5127 | u32 ioadl_flags = 0; | |
5128 | struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd; | |
5129 | struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb; | |
5130 | struct ipr_ioadl64_desc *ioadl64 = ipr_cmd->i.ioadl64; | |
5131 | ||
5132 | length = scsi_bufflen(scsi_cmd); | |
5133 | if (!length) | |
5134 | return 0; | |
5135 | ||
5136 | nseg = scsi_dma_map(scsi_cmd); | |
5137 | if (nseg < 0) { | |
5138 | dev_err(&ioa_cfg->pdev->dev, "pci_map_sg failed!\n"); | |
5139 | return -1; | |
5140 | } | |
5141 | ||
5142 | ipr_cmd->dma_use_sg = nseg; | |
5143 | ||
438b0331 | 5144 | ioarcb->data_transfer_length = cpu_to_be32(length); |
b8803b1c WB |
5145 | ioarcb->ioadl_len = |
5146 | cpu_to_be32(sizeof(struct ipr_ioadl64_desc) * ipr_cmd->dma_use_sg); | |
438b0331 | 5147 | |
a32c055f WB |
5148 | if (scsi_cmd->sc_data_direction == DMA_TO_DEVICE) { |
5149 | ioadl_flags = IPR_IOADL_FLAGS_WRITE; | |
5150 | ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ; | |
5151 | } else if (scsi_cmd->sc_data_direction == DMA_FROM_DEVICE) | |
5152 | ioadl_flags = IPR_IOADL_FLAGS_READ; | |
5153 | ||
5154 | scsi_for_each_sg(scsi_cmd, sg, ipr_cmd->dma_use_sg, i) { | |
5155 | ioadl64[i].flags = cpu_to_be32(ioadl_flags); | |
5156 | ioadl64[i].data_len = cpu_to_be32(sg_dma_len(sg)); | |
5157 | ioadl64[i].address = cpu_to_be64(sg_dma_address(sg)); | |
5158 | } | |
5159 | ||
5160 | ioadl64[i-1].flags |= cpu_to_be32(IPR_IOADL_FLAGS_LAST); | |
5161 | return 0; | |
5162 | } | |
5163 | ||
1da177e4 LT |
5164 | /** |
5165 | * ipr_build_ioadl - Build a scatter/gather list and map the buffer | |
5166 | * @ioa_cfg: ioa config struct | |
5167 | * @ipr_cmd: ipr command struct | |
5168 | * | |
5169 | * Return value: | |
5170 | * 0 on success / -1 on failure | |
5171 | **/ | |
5172 | static int ipr_build_ioadl(struct ipr_ioa_cfg *ioa_cfg, | |
5173 | struct ipr_cmnd *ipr_cmd) | |
5174 | { | |
63015bc9 FT |
5175 | int i, nseg; |
5176 | struct scatterlist *sg; | |
1da177e4 LT |
5177 | u32 length; |
5178 | u32 ioadl_flags = 0; | |
5179 | struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd; | |
5180 | struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb; | |
a32c055f | 5181 | struct ipr_ioadl_desc *ioadl = ipr_cmd->i.ioadl; |
1da177e4 | 5182 | |
63015bc9 FT |
5183 | length = scsi_bufflen(scsi_cmd); |
5184 | if (!length) | |
1da177e4 LT |
5185 | return 0; |
5186 | ||
63015bc9 FT |
5187 | nseg = scsi_dma_map(scsi_cmd); |
5188 | if (nseg < 0) { | |
5189 | dev_err(&ioa_cfg->pdev->dev, "pci_map_sg failed!\n"); | |
5190 | return -1; | |
5191 | } | |
51b1c7e1 | 5192 | |
63015bc9 FT |
5193 | ipr_cmd->dma_use_sg = nseg; |
5194 | ||
5195 | if (scsi_cmd->sc_data_direction == DMA_TO_DEVICE) { | |
5196 | ioadl_flags = IPR_IOADL_FLAGS_WRITE; | |
5197 | ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ; | |
a32c055f WB |
5198 | ioarcb->data_transfer_length = cpu_to_be32(length); |
5199 | ioarcb->ioadl_len = | |
63015bc9 FT |
5200 | cpu_to_be32(sizeof(struct ipr_ioadl_desc) * ipr_cmd->dma_use_sg); |
5201 | } else if (scsi_cmd->sc_data_direction == DMA_FROM_DEVICE) { | |
5202 | ioadl_flags = IPR_IOADL_FLAGS_READ; | |
5203 | ioarcb->read_data_transfer_length = cpu_to_be32(length); | |
5204 | ioarcb->read_ioadl_len = | |
5205 | cpu_to_be32(sizeof(struct ipr_ioadl_desc) * ipr_cmd->dma_use_sg); | |
5206 | } | |
1da177e4 | 5207 | |
a32c055f WB |
5208 | if (ipr_cmd->dma_use_sg <= ARRAY_SIZE(ioarcb->u.add_data.u.ioadl)) { |
5209 | ioadl = ioarcb->u.add_data.u.ioadl; | |
5210 | ioarcb->write_ioadl_addr = cpu_to_be32((ipr_cmd->dma_addr) + | |
5211 | offsetof(struct ipr_ioarcb, u.add_data)); | |
63015bc9 FT |
5212 | ioarcb->read_ioadl_addr = ioarcb->write_ioadl_addr; |
5213 | } | |
1da177e4 | 5214 | |
63015bc9 FT |
5215 | scsi_for_each_sg(scsi_cmd, sg, ipr_cmd->dma_use_sg, i) { |
5216 | ioadl[i].flags_and_data_len = | |
5217 | cpu_to_be32(ioadl_flags | sg_dma_len(sg)); | |
5218 | ioadl[i].address = cpu_to_be32(sg_dma_address(sg)); | |
1da177e4 LT |
5219 | } |
5220 | ||
63015bc9 FT |
5221 | ioadl[i-1].flags_and_data_len |= cpu_to_be32(IPR_IOADL_FLAGS_LAST); |
5222 | return 0; | |
1da177e4 LT |
5223 | } |
5224 | ||
5225 | /** | |
5226 | * ipr_get_task_attributes - Translate SPI Q-Tag to task attributes | |
5227 | * @scsi_cmd: scsi command struct | |
5228 | * | |
5229 | * Return value: | |
5230 | * task attributes | |
5231 | **/ | |
5232 | static u8 ipr_get_task_attributes(struct scsi_cmnd *scsi_cmd) | |
5233 | { | |
5234 | u8 tag[2]; | |
5235 | u8 rc = IPR_FLAGS_LO_UNTAGGED_TASK; | |
5236 | ||
5237 | if (scsi_populate_tag_msg(scsi_cmd, tag)) { | |
5238 | switch (tag[0]) { | |
5239 | case MSG_SIMPLE_TAG: | |
5240 | rc = IPR_FLAGS_LO_SIMPLE_TASK; | |
5241 | break; | |
5242 | case MSG_HEAD_TAG: | |
5243 | rc = IPR_FLAGS_LO_HEAD_OF_Q_TASK; | |
5244 | break; | |
5245 | case MSG_ORDERED_TAG: | |
5246 | rc = IPR_FLAGS_LO_ORDERED_TASK; | |
5247 | break; | |
5248 | }; | |
5249 | } | |
5250 | ||
5251 | return rc; | |
5252 | } | |
5253 | ||
5254 | /** | |
5255 | * ipr_erp_done - Process completion of ERP for a device | |
5256 | * @ipr_cmd: ipr command struct | |
5257 | * | |
5258 | * This function copies the sense buffer into the scsi_cmd | |
5259 | * struct and pushes the scsi_done function. | |
5260 | * | |
5261 | * Return value: | |
5262 | * nothing | |
5263 | **/ | |
5264 | static void ipr_erp_done(struct ipr_cmnd *ipr_cmd) | |
5265 | { | |
5266 | struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd; | |
5267 | struct ipr_resource_entry *res = scsi_cmd->device->hostdata; | |
5268 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; | |
96d21f00 | 5269 | u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc); |
1da177e4 LT |
5270 | |
5271 | if (IPR_IOASC_SENSE_KEY(ioasc) > 0) { | |
5272 | scsi_cmd->result |= (DID_ERROR << 16); | |
fb3ed3cb BK |
5273 | scmd_printk(KERN_ERR, scsi_cmd, |
5274 | "Request Sense failed with IOASC: 0x%08X\n", ioasc); | |
1da177e4 LT |
5275 | } else { |
5276 | memcpy(scsi_cmd->sense_buffer, ipr_cmd->sense_buffer, | |
5277 | SCSI_SENSE_BUFFERSIZE); | |
5278 | } | |
5279 | ||
5280 | if (res) { | |
ee0a90fa | 5281 | if (!ipr_is_naca_model(res)) |
5282 | res->needs_sync_complete = 1; | |
1da177e4 LT |
5283 | res->in_erp = 0; |
5284 | } | |
63015bc9 | 5285 | scsi_dma_unmap(ipr_cmd->scsi_cmd); |
1da177e4 LT |
5286 | list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q); |
5287 | scsi_cmd->scsi_done(scsi_cmd); | |
5288 | } | |
5289 | ||
5290 | /** | |
5291 | * ipr_reinit_ipr_cmnd_for_erp - Re-initialize a cmnd block to be used for ERP | |
5292 | * @ipr_cmd: ipr command struct | |
5293 | * | |
5294 | * Return value: | |
5295 | * none | |
5296 | **/ | |
5297 | static void ipr_reinit_ipr_cmnd_for_erp(struct ipr_cmnd *ipr_cmd) | |
5298 | { | |
51b1c7e1 | 5299 | struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb; |
96d21f00 | 5300 | struct ipr_ioasa *ioasa = &ipr_cmd->s.ioasa; |
a32c055f | 5301 | dma_addr_t dma_addr = ipr_cmd->dma_addr; |
1da177e4 LT |
5302 | |
5303 | memset(&ioarcb->cmd_pkt, 0, sizeof(struct ipr_cmd_pkt)); | |
a32c055f | 5304 | ioarcb->data_transfer_length = 0; |
1da177e4 | 5305 | ioarcb->read_data_transfer_length = 0; |
a32c055f | 5306 | ioarcb->ioadl_len = 0; |
1da177e4 | 5307 | ioarcb->read_ioadl_len = 0; |
96d21f00 WB |
5308 | ioasa->hdr.ioasc = 0; |
5309 | ioasa->hdr.residual_data_len = 0; | |
a32c055f WB |
5310 | |
5311 | if (ipr_cmd->ioa_cfg->sis64) | |
5312 | ioarcb->u.sis64_addr_data.data_ioadl_addr = | |
5313 | cpu_to_be64(dma_addr + offsetof(struct ipr_cmnd, i.ioadl64)); | |
5314 | else { | |
5315 | ioarcb->write_ioadl_addr = | |
5316 | cpu_to_be32(dma_addr + offsetof(struct ipr_cmnd, i.ioadl)); | |
5317 | ioarcb->read_ioadl_addr = ioarcb->write_ioadl_addr; | |
5318 | } | |
1da177e4 LT |
5319 | } |
5320 | ||
5321 | /** | |
5322 | * ipr_erp_request_sense - Send request sense to a device | |
5323 | * @ipr_cmd: ipr command struct | |
5324 | * | |
5325 | * This function sends a request sense to a device as a result | |
5326 | * of a check condition. | |
5327 | * | |
5328 | * Return value: | |
5329 | * nothing | |
5330 | **/ | |
5331 | static void ipr_erp_request_sense(struct ipr_cmnd *ipr_cmd) | |
5332 | { | |
5333 | struct ipr_cmd_pkt *cmd_pkt = &ipr_cmd->ioarcb.cmd_pkt; | |
96d21f00 | 5334 | u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc); |
1da177e4 LT |
5335 | |
5336 | if (IPR_IOASC_SENSE_KEY(ioasc) > 0) { | |
5337 | ipr_erp_done(ipr_cmd); | |
5338 | return; | |
5339 | } | |
5340 | ||
5341 | ipr_reinit_ipr_cmnd_for_erp(ipr_cmd); | |
5342 | ||
5343 | cmd_pkt->request_type = IPR_RQTYPE_SCSICDB; | |
5344 | cmd_pkt->cdb[0] = REQUEST_SENSE; | |
5345 | cmd_pkt->cdb[4] = SCSI_SENSE_BUFFERSIZE; | |
5346 | cmd_pkt->flags_hi |= IPR_FLAGS_HI_SYNC_OVERRIDE; | |
5347 | cmd_pkt->flags_hi |= IPR_FLAGS_HI_NO_ULEN_CHK; | |
5348 | cmd_pkt->timeout = cpu_to_be16(IPR_REQUEST_SENSE_TIMEOUT / HZ); | |
5349 | ||
a32c055f WB |
5350 | ipr_init_ioadl(ipr_cmd, ipr_cmd->sense_buffer_dma, |
5351 | SCSI_SENSE_BUFFERSIZE, IPR_IOADL_FLAGS_READ_LAST); | |
1da177e4 LT |
5352 | |
5353 | ipr_do_req(ipr_cmd, ipr_erp_done, ipr_timeout, | |
5354 | IPR_REQUEST_SENSE_TIMEOUT * 2); | |
5355 | } | |
5356 | ||
5357 | /** | |
5358 | * ipr_erp_cancel_all - Send cancel all to a device | |
5359 | * @ipr_cmd: ipr command struct | |
5360 | * | |
5361 | * This function sends a cancel all to a device to clear the | |
5362 | * queue. If we are running TCQ on the device, QERR is set to 1, | |
5363 | * which means all outstanding ops have been dropped on the floor. | |
5364 | * Cancel all will return them to us. | |
5365 | * | |
5366 | * Return value: | |
5367 | * nothing | |
5368 | **/ | |
5369 | static void ipr_erp_cancel_all(struct ipr_cmnd *ipr_cmd) | |
5370 | { | |
5371 | struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd; | |
5372 | struct ipr_resource_entry *res = scsi_cmd->device->hostdata; | |
5373 | struct ipr_cmd_pkt *cmd_pkt; | |
5374 | ||
5375 | res->in_erp = 1; | |
5376 | ||
5377 | ipr_reinit_ipr_cmnd_for_erp(ipr_cmd); | |
5378 | ||
5379 | if (!scsi_get_tag_type(scsi_cmd->device)) { | |
5380 | ipr_erp_request_sense(ipr_cmd); | |
5381 | return; | |
5382 | } | |
5383 | ||
5384 | cmd_pkt = &ipr_cmd->ioarcb.cmd_pkt; | |
5385 | cmd_pkt->request_type = IPR_RQTYPE_IOACMD; | |
5386 | cmd_pkt->cdb[0] = IPR_CANCEL_ALL_REQUESTS; | |
5387 | ||
5388 | ipr_do_req(ipr_cmd, ipr_erp_request_sense, ipr_timeout, | |
5389 | IPR_CANCEL_ALL_TIMEOUT); | |
5390 | } | |
5391 | ||
5392 | /** | |
5393 | * ipr_dump_ioasa - Dump contents of IOASA | |
5394 | * @ioa_cfg: ioa config struct | |
5395 | * @ipr_cmd: ipr command struct | |
fe964d0a | 5396 | * @res: resource entry struct |
1da177e4 LT |
5397 | * |
5398 | * This function is invoked by the interrupt handler when ops | |
5399 | * fail. It will log the IOASA if appropriate. Only called | |
5400 | * for GPDD ops. | |
5401 | * | |
5402 | * Return value: | |
5403 | * none | |
5404 | **/ | |
5405 | static void ipr_dump_ioasa(struct ipr_ioa_cfg *ioa_cfg, | |
fe964d0a | 5406 | struct ipr_cmnd *ipr_cmd, struct ipr_resource_entry *res) |
1da177e4 LT |
5407 | { |
5408 | int i; | |
5409 | u16 data_len; | |
b0692dd4 | 5410 | u32 ioasc, fd_ioasc; |
96d21f00 | 5411 | struct ipr_ioasa *ioasa = &ipr_cmd->s.ioasa; |
1da177e4 LT |
5412 | __be32 *ioasa_data = (__be32 *)ioasa; |
5413 | int error_index; | |
5414 | ||
96d21f00 WB |
5415 | ioasc = be32_to_cpu(ioasa->hdr.ioasc) & IPR_IOASC_IOASC_MASK; |
5416 | fd_ioasc = be32_to_cpu(ioasa->hdr.fd_ioasc) & IPR_IOASC_IOASC_MASK; | |
1da177e4 LT |
5417 | |
5418 | if (0 == ioasc) | |
5419 | return; | |
5420 | ||
5421 | if (ioa_cfg->log_level < IPR_DEFAULT_LOG_LEVEL) | |
5422 | return; | |
5423 | ||
b0692dd4 BK |
5424 | if (ioasc == IPR_IOASC_BUS_WAS_RESET && fd_ioasc) |
5425 | error_index = ipr_get_error(fd_ioasc); | |
5426 | else | |
5427 | error_index = ipr_get_error(ioasc); | |
1da177e4 LT |
5428 | |
5429 | if (ioa_cfg->log_level < IPR_MAX_LOG_LEVEL) { | |
5430 | /* Don't log an error if the IOA already logged one */ | |
96d21f00 | 5431 | if (ioasa->hdr.ilid != 0) |
1da177e4 LT |
5432 | return; |
5433 | ||
cc9bd5d4 BK |
5434 | if (!ipr_is_gscsi(res)) |
5435 | return; | |
5436 | ||
1da177e4 LT |
5437 | if (ipr_error_table[error_index].log_ioasa == 0) |
5438 | return; | |
5439 | } | |
5440 | ||
fe964d0a | 5441 | ipr_res_err(ioa_cfg, res, "%s\n", ipr_error_table[error_index].error); |
1da177e4 | 5442 | |
96d21f00 WB |
5443 | data_len = be16_to_cpu(ioasa->hdr.ret_stat_len); |
5444 | if (ioa_cfg->sis64 && sizeof(struct ipr_ioasa64) < data_len) | |
5445 | data_len = sizeof(struct ipr_ioasa64); | |
5446 | else if (!ioa_cfg->sis64 && sizeof(struct ipr_ioasa) < data_len) | |
1da177e4 | 5447 | data_len = sizeof(struct ipr_ioasa); |
1da177e4 LT |
5448 | |
5449 | ipr_err("IOASA Dump:\n"); | |
5450 | ||
5451 | for (i = 0; i < data_len / 4; i += 4) { | |
5452 | ipr_err("%08X: %08X %08X %08X %08X\n", i*4, | |
5453 | be32_to_cpu(ioasa_data[i]), | |
5454 | be32_to_cpu(ioasa_data[i+1]), | |
5455 | be32_to_cpu(ioasa_data[i+2]), | |
5456 | be32_to_cpu(ioasa_data[i+3])); | |
5457 | } | |
5458 | } | |
5459 | ||
5460 | /** | |
5461 | * ipr_gen_sense - Generate SCSI sense data from an IOASA | |
5462 | * @ioasa: IOASA | |
5463 | * @sense_buf: sense data buffer | |
5464 | * | |
5465 | * Return value: | |
5466 | * none | |
5467 | **/ | |
5468 | static void ipr_gen_sense(struct ipr_cmnd *ipr_cmd) | |
5469 | { | |
5470 | u32 failing_lba; | |
5471 | u8 *sense_buf = ipr_cmd->scsi_cmd->sense_buffer; | |
5472 | struct ipr_resource_entry *res = ipr_cmd->scsi_cmd->device->hostdata; | |
96d21f00 WB |
5473 | struct ipr_ioasa *ioasa = &ipr_cmd->s.ioasa; |
5474 | u32 ioasc = be32_to_cpu(ioasa->hdr.ioasc); | |
1da177e4 LT |
5475 | |
5476 | memset(sense_buf, 0, SCSI_SENSE_BUFFERSIZE); | |
5477 | ||
5478 | if (ioasc >= IPR_FIRST_DRIVER_IOASC) | |
5479 | return; | |
5480 | ||
5481 | ipr_cmd->scsi_cmd->result = SAM_STAT_CHECK_CONDITION; | |
5482 | ||
5483 | if (ipr_is_vset_device(res) && | |
5484 | ioasc == IPR_IOASC_MED_DO_NOT_REALLOC && | |
5485 | ioasa->u.vset.failing_lba_hi != 0) { | |
5486 | sense_buf[0] = 0x72; | |
5487 | sense_buf[1] = IPR_IOASC_SENSE_KEY(ioasc); | |
5488 | sense_buf[2] = IPR_IOASC_SENSE_CODE(ioasc); | |
5489 | sense_buf[3] = IPR_IOASC_SENSE_QUAL(ioasc); | |
5490 | ||
5491 | sense_buf[7] = 12; | |
5492 | sense_buf[8] = 0; | |
5493 | sense_buf[9] = 0x0A; | |
5494 | sense_buf[10] = 0x80; | |
5495 | ||
5496 | failing_lba = be32_to_cpu(ioasa->u.vset.failing_lba_hi); | |
5497 | ||
5498 | sense_buf[12] = (failing_lba & 0xff000000) >> 24; | |
5499 | sense_buf[13] = (failing_lba & 0x00ff0000) >> 16; | |
5500 | sense_buf[14] = (failing_lba & 0x0000ff00) >> 8; | |
5501 | sense_buf[15] = failing_lba & 0x000000ff; | |
5502 | ||
5503 | failing_lba = be32_to_cpu(ioasa->u.vset.failing_lba_lo); | |
5504 | ||
5505 | sense_buf[16] = (failing_lba & 0xff000000) >> 24; | |
5506 | sense_buf[17] = (failing_lba & 0x00ff0000) >> 16; | |
5507 | sense_buf[18] = (failing_lba & 0x0000ff00) >> 8; | |
5508 | sense_buf[19] = failing_lba & 0x000000ff; | |
5509 | } else { | |
5510 | sense_buf[0] = 0x70; | |
5511 | sense_buf[2] = IPR_IOASC_SENSE_KEY(ioasc); | |
5512 | sense_buf[12] = IPR_IOASC_SENSE_CODE(ioasc); | |
5513 | sense_buf[13] = IPR_IOASC_SENSE_QUAL(ioasc); | |
5514 | ||
5515 | /* Illegal request */ | |
5516 | if ((IPR_IOASC_SENSE_KEY(ioasc) == 0x05) && | |
96d21f00 | 5517 | (be32_to_cpu(ioasa->hdr.ioasc_specific) & IPR_FIELD_POINTER_VALID)) { |
1da177e4 LT |
5518 | sense_buf[7] = 10; /* additional length */ |
5519 | ||
5520 | /* IOARCB was in error */ | |
5521 | if (IPR_IOASC_SENSE_CODE(ioasc) == 0x24) | |
5522 | sense_buf[15] = 0xC0; | |
5523 | else /* Parameter data was invalid */ | |
5524 | sense_buf[15] = 0x80; | |
5525 | ||
5526 | sense_buf[16] = | |
5527 | ((IPR_FIELD_POINTER_MASK & | |
96d21f00 | 5528 | be32_to_cpu(ioasa->hdr.ioasc_specific)) >> 8) & 0xff; |
1da177e4 LT |
5529 | sense_buf[17] = |
5530 | (IPR_FIELD_POINTER_MASK & | |
96d21f00 | 5531 | be32_to_cpu(ioasa->hdr.ioasc_specific)) & 0xff; |
1da177e4 LT |
5532 | } else { |
5533 | if (ioasc == IPR_IOASC_MED_DO_NOT_REALLOC) { | |
5534 | if (ipr_is_vset_device(res)) | |
5535 | failing_lba = be32_to_cpu(ioasa->u.vset.failing_lba_lo); | |
5536 | else | |
5537 | failing_lba = be32_to_cpu(ioasa->u.dasd.failing_lba); | |
5538 | ||
5539 | sense_buf[0] |= 0x80; /* Or in the Valid bit */ | |
5540 | sense_buf[3] = (failing_lba & 0xff000000) >> 24; | |
5541 | sense_buf[4] = (failing_lba & 0x00ff0000) >> 16; | |
5542 | sense_buf[5] = (failing_lba & 0x0000ff00) >> 8; | |
5543 | sense_buf[6] = failing_lba & 0x000000ff; | |
5544 | } | |
5545 | ||
5546 | sense_buf[7] = 6; /* additional length */ | |
5547 | } | |
5548 | } | |
5549 | } | |
5550 | ||
ee0a90fa | 5551 | /** |
5552 | * ipr_get_autosense - Copy autosense data to sense buffer | |
5553 | * @ipr_cmd: ipr command struct | |
5554 | * | |
5555 | * This function copies the autosense buffer to the buffer | |
5556 | * in the scsi_cmd, if there is autosense available. | |
5557 | * | |
5558 | * Return value: | |
5559 | * 1 if autosense was available / 0 if not | |
5560 | **/ | |
5561 | static int ipr_get_autosense(struct ipr_cmnd *ipr_cmd) | |
5562 | { | |
96d21f00 WB |
5563 | struct ipr_ioasa *ioasa = &ipr_cmd->s.ioasa; |
5564 | struct ipr_ioasa64 *ioasa64 = &ipr_cmd->s.ioasa64; | |
ee0a90fa | 5565 | |
96d21f00 | 5566 | if ((be32_to_cpu(ioasa->hdr.ioasc_specific) & IPR_AUTOSENSE_VALID) == 0) |
ee0a90fa | 5567 | return 0; |
5568 | ||
96d21f00 WB |
5569 | if (ipr_cmd->ioa_cfg->sis64) |
5570 | memcpy(ipr_cmd->scsi_cmd->sense_buffer, ioasa64->auto_sense.data, | |
5571 | min_t(u16, be16_to_cpu(ioasa64->auto_sense.auto_sense_len), | |
5572 | SCSI_SENSE_BUFFERSIZE)); | |
5573 | else | |
5574 | memcpy(ipr_cmd->scsi_cmd->sense_buffer, ioasa->auto_sense.data, | |
5575 | min_t(u16, be16_to_cpu(ioasa->auto_sense.auto_sense_len), | |
5576 | SCSI_SENSE_BUFFERSIZE)); | |
ee0a90fa | 5577 | return 1; |
5578 | } | |
5579 | ||
1da177e4 LT |
5580 | /** |
5581 | * ipr_erp_start - Process an error response for a SCSI op | |
5582 | * @ioa_cfg: ioa config struct | |
5583 | * @ipr_cmd: ipr command struct | |
5584 | * | |
5585 | * This function determines whether or not to initiate ERP | |
5586 | * on the affected device. | |
5587 | * | |
5588 | * Return value: | |
5589 | * nothing | |
5590 | **/ | |
5591 | static void ipr_erp_start(struct ipr_ioa_cfg *ioa_cfg, | |
5592 | struct ipr_cmnd *ipr_cmd) | |
5593 | { | |
5594 | struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd; | |
5595 | struct ipr_resource_entry *res = scsi_cmd->device->hostdata; | |
96d21f00 | 5596 | u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc); |
8a048994 | 5597 | u32 masked_ioasc = ioasc & IPR_IOASC_IOASC_MASK; |
1da177e4 LT |
5598 | |
5599 | if (!res) { | |
5600 | ipr_scsi_eh_done(ipr_cmd); | |
5601 | return; | |
5602 | } | |
5603 | ||
8a048994 | 5604 | if (!ipr_is_gscsi(res) && masked_ioasc != IPR_IOASC_HW_DEV_BUS_STATUS) |
1da177e4 LT |
5605 | ipr_gen_sense(ipr_cmd); |
5606 | ||
cc9bd5d4 BK |
5607 | ipr_dump_ioasa(ioa_cfg, ipr_cmd, res); |
5608 | ||
8a048994 | 5609 | switch (masked_ioasc) { |
1da177e4 | 5610 | case IPR_IOASC_ABORTED_CMD_TERM_BY_HOST: |
ee0a90fa | 5611 | if (ipr_is_naca_model(res)) |
5612 | scsi_cmd->result |= (DID_ABORT << 16); | |
5613 | else | |
5614 | scsi_cmd->result |= (DID_IMM_RETRY << 16); | |
1da177e4 LT |
5615 | break; |
5616 | case IPR_IOASC_IR_RESOURCE_HANDLE: | |
b0df54bb | 5617 | case IPR_IOASC_IR_NO_CMDS_TO_2ND_IOA: |
1da177e4 LT |
5618 | scsi_cmd->result |= (DID_NO_CONNECT << 16); |
5619 | break; | |
5620 | case IPR_IOASC_HW_SEL_TIMEOUT: | |
5621 | scsi_cmd->result |= (DID_NO_CONNECT << 16); | |
ee0a90fa | 5622 | if (!ipr_is_naca_model(res)) |
5623 | res->needs_sync_complete = 1; | |
1da177e4 LT |
5624 | break; |
5625 | case IPR_IOASC_SYNC_REQUIRED: | |
5626 | if (!res->in_erp) | |
5627 | res->needs_sync_complete = 1; | |
5628 | scsi_cmd->result |= (DID_IMM_RETRY << 16); | |
5629 | break; | |
5630 | case IPR_IOASC_MED_DO_NOT_REALLOC: /* prevent retries */ | |
b0df54bb | 5631 | case IPR_IOASA_IR_DUAL_IOA_DISABLED: |
1da177e4 LT |
5632 | scsi_cmd->result |= (DID_PASSTHROUGH << 16); |
5633 | break; | |
5634 | case IPR_IOASC_BUS_WAS_RESET: | |
5635 | case IPR_IOASC_BUS_WAS_RESET_BY_OTHER: | |
5636 | /* | |
5637 | * Report the bus reset and ask for a retry. The device | |
5638 | * will give CC/UA the next command. | |
5639 | */ | |
5640 | if (!res->resetting_device) | |
5641 | scsi_report_bus_reset(ioa_cfg->host, scsi_cmd->device->channel); | |
5642 | scsi_cmd->result |= (DID_ERROR << 16); | |
ee0a90fa | 5643 | if (!ipr_is_naca_model(res)) |
5644 | res->needs_sync_complete = 1; | |
1da177e4 LT |
5645 | break; |
5646 | case IPR_IOASC_HW_DEV_BUS_STATUS: | |
5647 | scsi_cmd->result |= IPR_IOASC_SENSE_STATUS(ioasc); | |
5648 | if (IPR_IOASC_SENSE_STATUS(ioasc) == SAM_STAT_CHECK_CONDITION) { | |
ee0a90fa | 5649 | if (!ipr_get_autosense(ipr_cmd)) { |
5650 | if (!ipr_is_naca_model(res)) { | |
5651 | ipr_erp_cancel_all(ipr_cmd); | |
5652 | return; | |
5653 | } | |
5654 | } | |
1da177e4 | 5655 | } |
ee0a90fa | 5656 | if (!ipr_is_naca_model(res)) |
5657 | res->needs_sync_complete = 1; | |
1da177e4 LT |
5658 | break; |
5659 | case IPR_IOASC_NR_INIT_CMD_REQUIRED: | |
5660 | break; | |
5661 | default: | |
5b7304fb BK |
5662 | if (IPR_IOASC_SENSE_KEY(ioasc) > RECOVERED_ERROR) |
5663 | scsi_cmd->result |= (DID_ERROR << 16); | |
ee0a90fa | 5664 | if (!ipr_is_vset_device(res) && !ipr_is_naca_model(res)) |
1da177e4 LT |
5665 | res->needs_sync_complete = 1; |
5666 | break; | |
5667 | } | |
5668 | ||
63015bc9 | 5669 | scsi_dma_unmap(ipr_cmd->scsi_cmd); |
1da177e4 LT |
5670 | list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q); |
5671 | scsi_cmd->scsi_done(scsi_cmd); | |
5672 | } | |
5673 | ||
5674 | /** | |
5675 | * ipr_scsi_done - mid-layer done function | |
5676 | * @ipr_cmd: ipr command struct | |
5677 | * | |
5678 | * This function is invoked by the interrupt handler for | |
5679 | * ops generated by the SCSI mid-layer | |
5680 | * | |
5681 | * Return value: | |
5682 | * none | |
5683 | **/ | |
5684 | static void ipr_scsi_done(struct ipr_cmnd *ipr_cmd) | |
5685 | { | |
5686 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; | |
5687 | struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd; | |
96d21f00 | 5688 | u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc); |
1da177e4 | 5689 | |
96d21f00 | 5690 | scsi_set_resid(scsi_cmd, be32_to_cpu(ipr_cmd->s.ioasa.hdr.residual_data_len)); |
1da177e4 LT |
5691 | |
5692 | if (likely(IPR_IOASC_SENSE_KEY(ioasc) == 0)) { | |
63015bc9 | 5693 | scsi_dma_unmap(ipr_cmd->scsi_cmd); |
1da177e4 LT |
5694 | list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q); |
5695 | scsi_cmd->scsi_done(scsi_cmd); | |
5696 | } else | |
5697 | ipr_erp_start(ioa_cfg, ipr_cmd); | |
5698 | } | |
5699 | ||
1da177e4 LT |
5700 | /** |
5701 | * ipr_queuecommand - Queue a mid-layer request | |
5702 | * @scsi_cmd: scsi command struct | |
5703 | * @done: done function | |
5704 | * | |
5705 | * This function queues a request generated by the mid-layer. | |
5706 | * | |
5707 | * Return value: | |
5708 | * 0 on success | |
5709 | * SCSI_MLQUEUE_DEVICE_BUSY if device is busy | |
5710 | * SCSI_MLQUEUE_HOST_BUSY if host is busy | |
5711 | **/ | |
f281233d | 5712 | static int ipr_queuecommand_lck(struct scsi_cmnd *scsi_cmd, |
1da177e4 LT |
5713 | void (*done) (struct scsi_cmnd *)) |
5714 | { | |
5715 | struct ipr_ioa_cfg *ioa_cfg; | |
5716 | struct ipr_resource_entry *res; | |
5717 | struct ipr_ioarcb *ioarcb; | |
5718 | struct ipr_cmnd *ipr_cmd; | |
5719 | int rc = 0; | |
5720 | ||
5721 | scsi_cmd->scsi_done = done; | |
5722 | ioa_cfg = (struct ipr_ioa_cfg *)scsi_cmd->device->host->hostdata; | |
5723 | res = scsi_cmd->device->hostdata; | |
5724 | scsi_cmd->result = (DID_OK << 16); | |
5725 | ||
5726 | /* | |
5727 | * We are currently blocking all devices due to a host reset | |
5728 | * We have told the host to stop giving us new requests, but | |
5729 | * ERP ops don't count. FIXME | |
5730 | */ | |
5731 | if (unlikely(!ioa_cfg->allow_cmds && !ioa_cfg->ioa_is_dead)) | |
5732 | return SCSI_MLQUEUE_HOST_BUSY; | |
5733 | ||
5734 | /* | |
5735 | * FIXME - Create scsi_set_host_offline interface | |
5736 | * and the ioa_is_dead check can be removed | |
5737 | */ | |
5738 | if (unlikely(ioa_cfg->ioa_is_dead || !res)) { | |
5739 | memset(scsi_cmd->sense_buffer, 0, SCSI_SENSE_BUFFERSIZE); | |
5740 | scsi_cmd->result = (DID_NO_CONNECT << 16); | |
5741 | scsi_cmd->scsi_done(scsi_cmd); | |
5742 | return 0; | |
5743 | } | |
5744 | ||
35a39691 BK |
5745 | if (ipr_is_gata(res) && res->sata_port) |
5746 | return ata_sas_queuecmd(scsi_cmd, done, res->sata_port->ap); | |
5747 | ||
1da177e4 LT |
5748 | ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg); |
5749 | ioarcb = &ipr_cmd->ioarcb; | |
5750 | list_add_tail(&ipr_cmd->queue, &ioa_cfg->pending_q); | |
5751 | ||
5752 | memcpy(ioarcb->cmd_pkt.cdb, scsi_cmd->cmnd, scsi_cmd->cmd_len); | |
5753 | ipr_cmd->scsi_cmd = scsi_cmd; | |
3e7ebdfa | 5754 | ioarcb->res_handle = res->res_handle; |
1da177e4 | 5755 | ipr_cmd->done = ipr_scsi_done; |
3e7ebdfa | 5756 | ipr_trc_hook(ipr_cmd, IPR_TRACE_START, IPR_GET_RES_PHYS_LOC(res)); |
1da177e4 LT |
5757 | |
5758 | if (ipr_is_gscsi(res) || ipr_is_vset_device(res)) { | |
5759 | if (scsi_cmd->underflow == 0) | |
5760 | ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_NO_ULEN_CHK; | |
5761 | ||
5762 | if (res->needs_sync_complete) { | |
5763 | ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_SYNC_COMPLETE; | |
5764 | res->needs_sync_complete = 0; | |
5765 | } | |
5766 | ||
5767 | ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_NO_LINK_DESC; | |
5768 | ioarcb->cmd_pkt.flags_lo |= IPR_FLAGS_LO_DELAY_AFTER_RST; | |
5769 | ioarcb->cmd_pkt.flags_lo |= IPR_FLAGS_LO_ALIGNED_BFR; | |
5770 | ioarcb->cmd_pkt.flags_lo |= ipr_get_task_attributes(scsi_cmd); | |
5771 | } | |
5772 | ||
5773 | if (scsi_cmd->cmnd[0] >= 0xC0 && | |
5774 | (!ipr_is_gscsi(res) || scsi_cmd->cmnd[0] == IPR_QUERY_RSRC_STATE)) | |
5775 | ioarcb->cmd_pkt.request_type = IPR_RQTYPE_IOACMD; | |
5776 | ||
a32c055f WB |
5777 | if (likely(rc == 0)) { |
5778 | if (ioa_cfg->sis64) | |
5779 | rc = ipr_build_ioadl64(ioa_cfg, ipr_cmd); | |
5780 | else | |
5781 | rc = ipr_build_ioadl(ioa_cfg, ipr_cmd); | |
5782 | } | |
1da177e4 LT |
5783 | |
5784 | if (likely(rc == 0)) { | |
5785 | mb(); | |
a32c055f | 5786 | ipr_send_command(ipr_cmd); |
1da177e4 LT |
5787 | } else { |
5788 | list_move_tail(&ipr_cmd->queue, &ioa_cfg->free_q); | |
5789 | return SCSI_MLQUEUE_HOST_BUSY; | |
5790 | } | |
5791 | ||
5792 | return 0; | |
5793 | } | |
5794 | ||
f281233d JG |
5795 | static DEF_SCSI_QCMD(ipr_queuecommand) |
5796 | ||
35a39691 BK |
5797 | /** |
5798 | * ipr_ioctl - IOCTL handler | |
5799 | * @sdev: scsi device struct | |
5800 | * @cmd: IOCTL cmd | |
5801 | * @arg: IOCTL arg | |
5802 | * | |
5803 | * Return value: | |
5804 | * 0 on success / other on failure | |
5805 | **/ | |
bd705f2d | 5806 | static int ipr_ioctl(struct scsi_device *sdev, int cmd, void __user *arg) |
35a39691 BK |
5807 | { |
5808 | struct ipr_resource_entry *res; | |
5809 | ||
5810 | res = (struct ipr_resource_entry *)sdev->hostdata; | |
0ce3a7e5 BK |
5811 | if (res && ipr_is_gata(res)) { |
5812 | if (cmd == HDIO_GET_IDENTITY) | |
5813 | return -ENOTTY; | |
94be9a58 | 5814 | return ata_sas_scsi_ioctl(res->sata_port->ap, sdev, cmd, arg); |
0ce3a7e5 | 5815 | } |
35a39691 BK |
5816 | |
5817 | return -EINVAL; | |
5818 | } | |
5819 | ||
1da177e4 LT |
5820 | /** |
5821 | * ipr_info - Get information about the card/driver | |
5822 | * @scsi_host: scsi host struct | |
5823 | * | |
5824 | * Return value: | |
5825 | * pointer to buffer with description string | |
5826 | **/ | |
5827 | static const char * ipr_ioa_info(struct Scsi_Host *host) | |
5828 | { | |
5829 | static char buffer[512]; | |
5830 | struct ipr_ioa_cfg *ioa_cfg; | |
5831 | unsigned long lock_flags = 0; | |
5832 | ||
5833 | ioa_cfg = (struct ipr_ioa_cfg *) host->hostdata; | |
5834 | ||
5835 | spin_lock_irqsave(host->host_lock, lock_flags); | |
5836 | sprintf(buffer, "IBM %X Storage Adapter", ioa_cfg->type); | |
5837 | spin_unlock_irqrestore(host->host_lock, lock_flags); | |
5838 | ||
5839 | return buffer; | |
5840 | } | |
5841 | ||
5842 | static struct scsi_host_template driver_template = { | |
5843 | .module = THIS_MODULE, | |
5844 | .name = "IPR", | |
5845 | .info = ipr_ioa_info, | |
35a39691 | 5846 | .ioctl = ipr_ioctl, |
1da177e4 LT |
5847 | .queuecommand = ipr_queuecommand, |
5848 | .eh_abort_handler = ipr_eh_abort, | |
5849 | .eh_device_reset_handler = ipr_eh_dev_reset, | |
5850 | .eh_host_reset_handler = ipr_eh_host_reset, | |
5851 | .slave_alloc = ipr_slave_alloc, | |
5852 | .slave_configure = ipr_slave_configure, | |
5853 | .slave_destroy = ipr_slave_destroy, | |
35a39691 BK |
5854 | .target_alloc = ipr_target_alloc, |
5855 | .target_destroy = ipr_target_destroy, | |
1da177e4 LT |
5856 | .change_queue_depth = ipr_change_queue_depth, |
5857 | .change_queue_type = ipr_change_queue_type, | |
5858 | .bios_param = ipr_biosparam, | |
5859 | .can_queue = IPR_MAX_COMMANDS, | |
5860 | .this_id = -1, | |
5861 | .sg_tablesize = IPR_MAX_SGLIST, | |
5862 | .max_sectors = IPR_IOA_MAX_SECTORS, | |
5863 | .cmd_per_lun = IPR_MAX_CMD_PER_LUN, | |
5864 | .use_clustering = ENABLE_CLUSTERING, | |
5865 | .shost_attrs = ipr_ioa_attrs, | |
5866 | .sdev_attrs = ipr_dev_attrs, | |
5867 | .proc_name = IPR_NAME | |
5868 | }; | |
5869 | ||
35a39691 BK |
5870 | /** |
5871 | * ipr_ata_phy_reset - libata phy_reset handler | |
5872 | * @ap: ata port to reset | |
5873 | * | |
5874 | **/ | |
5875 | static void ipr_ata_phy_reset(struct ata_port *ap) | |
5876 | { | |
5877 | unsigned long flags; | |
5878 | struct ipr_sata_port *sata_port = ap->private_data; | |
5879 | struct ipr_resource_entry *res = sata_port->res; | |
5880 | struct ipr_ioa_cfg *ioa_cfg = sata_port->ioa_cfg; | |
5881 | int rc; | |
5882 | ||
5883 | ENTER; | |
5884 | spin_lock_irqsave(ioa_cfg->host->host_lock, flags); | |
5885 | while(ioa_cfg->in_reset_reload) { | |
5886 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags); | |
5887 | wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload); | |
5888 | spin_lock_irqsave(ioa_cfg->host->host_lock, flags); | |
5889 | } | |
5890 | ||
5891 | if (!ioa_cfg->allow_cmds) | |
5892 | goto out_unlock; | |
5893 | ||
5894 | rc = ipr_device_reset(ioa_cfg, res); | |
5895 | ||
5896 | if (rc) { | |
3e4ec344 | 5897 | ap->link.device[0].class = ATA_DEV_NONE; |
35a39691 BK |
5898 | goto out_unlock; |
5899 | } | |
5900 | ||
3e7ebdfa WB |
5901 | ap->link.device[0].class = res->ata_class; |
5902 | if (ap->link.device[0].class == ATA_DEV_UNKNOWN) | |
3e4ec344 | 5903 | ap->link.device[0].class = ATA_DEV_NONE; |
35a39691 BK |
5904 | |
5905 | out_unlock: | |
5906 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags); | |
5907 | LEAVE; | |
5908 | } | |
5909 | ||
5910 | /** | |
5911 | * ipr_ata_post_internal - Cleanup after an internal command | |
5912 | * @qc: ATA queued command | |
5913 | * | |
5914 | * Return value: | |
5915 | * none | |
5916 | **/ | |
5917 | static void ipr_ata_post_internal(struct ata_queued_cmd *qc) | |
5918 | { | |
5919 | struct ipr_sata_port *sata_port = qc->ap->private_data; | |
5920 | struct ipr_ioa_cfg *ioa_cfg = sata_port->ioa_cfg; | |
5921 | struct ipr_cmnd *ipr_cmd; | |
5922 | unsigned long flags; | |
5923 | ||
5924 | spin_lock_irqsave(ioa_cfg->host->host_lock, flags); | |
73d98ff0 BK |
5925 | while(ioa_cfg->in_reset_reload) { |
5926 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags); | |
5927 | wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload); | |
5928 | spin_lock_irqsave(ioa_cfg->host->host_lock, flags); | |
5929 | } | |
5930 | ||
35a39691 BK |
5931 | list_for_each_entry(ipr_cmd, &ioa_cfg->pending_q, queue) { |
5932 | if (ipr_cmd->qc == qc) { | |
5933 | ipr_device_reset(ioa_cfg, sata_port->res); | |
5934 | break; | |
5935 | } | |
5936 | } | |
5937 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags); | |
5938 | } | |
5939 | ||
35a39691 BK |
5940 | /** |
5941 | * ipr_copy_sata_tf - Copy a SATA taskfile to an IOA data structure | |
5942 | * @regs: destination | |
5943 | * @tf: source ATA taskfile | |
5944 | * | |
5945 | * Return value: | |
5946 | * none | |
5947 | **/ | |
5948 | static void ipr_copy_sata_tf(struct ipr_ioarcb_ata_regs *regs, | |
5949 | struct ata_taskfile *tf) | |
5950 | { | |
5951 | regs->feature = tf->feature; | |
5952 | regs->nsect = tf->nsect; | |
5953 | regs->lbal = tf->lbal; | |
5954 | regs->lbam = tf->lbam; | |
5955 | regs->lbah = tf->lbah; | |
5956 | regs->device = tf->device; | |
5957 | regs->command = tf->command; | |
5958 | regs->hob_feature = tf->hob_feature; | |
5959 | regs->hob_nsect = tf->hob_nsect; | |
5960 | regs->hob_lbal = tf->hob_lbal; | |
5961 | regs->hob_lbam = tf->hob_lbam; | |
5962 | regs->hob_lbah = tf->hob_lbah; | |
5963 | regs->ctl = tf->ctl; | |
5964 | } | |
5965 | ||
5966 | /** | |
5967 | * ipr_sata_done - done function for SATA commands | |
5968 | * @ipr_cmd: ipr command struct | |
5969 | * | |
5970 | * This function is invoked by the interrupt handler for | |
5971 | * ops generated by the SCSI mid-layer to SATA devices | |
5972 | * | |
5973 | * Return value: | |
5974 | * none | |
5975 | **/ | |
5976 | static void ipr_sata_done(struct ipr_cmnd *ipr_cmd) | |
5977 | { | |
5978 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; | |
5979 | struct ata_queued_cmd *qc = ipr_cmd->qc; | |
5980 | struct ipr_sata_port *sata_port = qc->ap->private_data; | |
5981 | struct ipr_resource_entry *res = sata_port->res; | |
96d21f00 | 5982 | u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc); |
35a39691 | 5983 | |
96d21f00 WB |
5984 | if (ipr_cmd->ioa_cfg->sis64) |
5985 | memcpy(&sata_port->ioasa, &ipr_cmd->s.ioasa64.u.gata, | |
5986 | sizeof(struct ipr_ioasa_gata)); | |
5987 | else | |
5988 | memcpy(&sata_port->ioasa, &ipr_cmd->s.ioasa.u.gata, | |
5989 | sizeof(struct ipr_ioasa_gata)); | |
35a39691 BK |
5990 | ipr_dump_ioasa(ioa_cfg, ipr_cmd, res); |
5991 | ||
96d21f00 | 5992 | if (be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc_specific) & IPR_ATA_DEVICE_WAS_RESET) |
3e7ebdfa | 5993 | scsi_report_device_reset(ioa_cfg->host, res->bus, res->target); |
35a39691 BK |
5994 | |
5995 | if (IPR_IOASC_SENSE_KEY(ioasc) > RECOVERED_ERROR) | |
96d21f00 | 5996 | qc->err_mask |= __ac_err_mask(sata_port->ioasa.status); |
35a39691 | 5997 | else |
96d21f00 | 5998 | qc->err_mask |= ac_err_mask(sata_port->ioasa.status); |
35a39691 BK |
5999 | list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q); |
6000 | ata_qc_complete(qc); | |
6001 | } | |
6002 | ||
a32c055f WB |
6003 | /** |
6004 | * ipr_build_ata_ioadl64 - Build an ATA scatter/gather list | |
6005 | * @ipr_cmd: ipr command struct | |
6006 | * @qc: ATA queued command | |
6007 | * | |
6008 | **/ | |
6009 | static void ipr_build_ata_ioadl64(struct ipr_cmnd *ipr_cmd, | |
6010 | struct ata_queued_cmd *qc) | |
6011 | { | |
6012 | u32 ioadl_flags = 0; | |
6013 | struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb; | |
6014 | struct ipr_ioadl64_desc *ioadl64 = ipr_cmd->i.ioadl64; | |
6015 | struct ipr_ioadl64_desc *last_ioadl64 = NULL; | |
6016 | int len = qc->nbytes; | |
6017 | struct scatterlist *sg; | |
6018 | unsigned int si; | |
6019 | dma_addr_t dma_addr = ipr_cmd->dma_addr; | |
6020 | ||
6021 | if (len == 0) | |
6022 | return; | |
6023 | ||
6024 | if (qc->dma_dir == DMA_TO_DEVICE) { | |
6025 | ioadl_flags = IPR_IOADL_FLAGS_WRITE; | |
6026 | ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ; | |
6027 | } else if (qc->dma_dir == DMA_FROM_DEVICE) | |
6028 | ioadl_flags = IPR_IOADL_FLAGS_READ; | |
6029 | ||
6030 | ioarcb->data_transfer_length = cpu_to_be32(len); | |
6031 | ioarcb->ioadl_len = | |
6032 | cpu_to_be32(sizeof(struct ipr_ioadl64_desc) * ipr_cmd->dma_use_sg); | |
6033 | ioarcb->u.sis64_addr_data.data_ioadl_addr = | |
6034 | cpu_to_be64(dma_addr + offsetof(struct ipr_cmnd, i.ata_ioadl)); | |
6035 | ||
6036 | for_each_sg(qc->sg, sg, qc->n_elem, si) { | |
6037 | ioadl64->flags = cpu_to_be32(ioadl_flags); | |
6038 | ioadl64->data_len = cpu_to_be32(sg_dma_len(sg)); | |
6039 | ioadl64->address = cpu_to_be64(sg_dma_address(sg)); | |
6040 | ||
6041 | last_ioadl64 = ioadl64; | |
6042 | ioadl64++; | |
6043 | } | |
6044 | ||
6045 | if (likely(last_ioadl64)) | |
6046 | last_ioadl64->flags |= cpu_to_be32(IPR_IOADL_FLAGS_LAST); | |
6047 | } | |
6048 | ||
35a39691 BK |
6049 | /** |
6050 | * ipr_build_ata_ioadl - Build an ATA scatter/gather list | |
6051 | * @ipr_cmd: ipr command struct | |
6052 | * @qc: ATA queued command | |
6053 | * | |
6054 | **/ | |
6055 | static void ipr_build_ata_ioadl(struct ipr_cmnd *ipr_cmd, | |
6056 | struct ata_queued_cmd *qc) | |
6057 | { | |
6058 | u32 ioadl_flags = 0; | |
6059 | struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb; | |
a32c055f | 6060 | struct ipr_ioadl_desc *ioadl = ipr_cmd->i.ioadl; |
3be6cbd7 | 6061 | struct ipr_ioadl_desc *last_ioadl = NULL; |
dde20207 | 6062 | int len = qc->nbytes; |
35a39691 | 6063 | struct scatterlist *sg; |
ff2aeb1e | 6064 | unsigned int si; |
35a39691 BK |
6065 | |
6066 | if (len == 0) | |
6067 | return; | |
6068 | ||
6069 | if (qc->dma_dir == DMA_TO_DEVICE) { | |
6070 | ioadl_flags = IPR_IOADL_FLAGS_WRITE; | |
6071 | ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ; | |
a32c055f WB |
6072 | ioarcb->data_transfer_length = cpu_to_be32(len); |
6073 | ioarcb->ioadl_len = | |
35a39691 BK |
6074 | cpu_to_be32(sizeof(struct ipr_ioadl_desc) * ipr_cmd->dma_use_sg); |
6075 | } else if (qc->dma_dir == DMA_FROM_DEVICE) { | |
6076 | ioadl_flags = IPR_IOADL_FLAGS_READ; | |
6077 | ioarcb->read_data_transfer_length = cpu_to_be32(len); | |
6078 | ioarcb->read_ioadl_len = | |
6079 | cpu_to_be32(sizeof(struct ipr_ioadl_desc) * ipr_cmd->dma_use_sg); | |
6080 | } | |
6081 | ||
ff2aeb1e | 6082 | for_each_sg(qc->sg, sg, qc->n_elem, si) { |
35a39691 BK |
6083 | ioadl->flags_and_data_len = cpu_to_be32(ioadl_flags | sg_dma_len(sg)); |
6084 | ioadl->address = cpu_to_be32(sg_dma_address(sg)); | |
3be6cbd7 JG |
6085 | |
6086 | last_ioadl = ioadl; | |
6087 | ioadl++; | |
35a39691 | 6088 | } |
3be6cbd7 JG |
6089 | |
6090 | if (likely(last_ioadl)) | |
6091 | last_ioadl->flags_and_data_len |= cpu_to_be32(IPR_IOADL_FLAGS_LAST); | |
35a39691 BK |
6092 | } |
6093 | ||
6094 | /** | |
6095 | * ipr_qc_issue - Issue a SATA qc to a device | |
6096 | * @qc: queued command | |
6097 | * | |
6098 | * Return value: | |
6099 | * 0 if success | |
6100 | **/ | |
6101 | static unsigned int ipr_qc_issue(struct ata_queued_cmd *qc) | |
6102 | { | |
6103 | struct ata_port *ap = qc->ap; | |
6104 | struct ipr_sata_port *sata_port = ap->private_data; | |
6105 | struct ipr_resource_entry *res = sata_port->res; | |
6106 | struct ipr_ioa_cfg *ioa_cfg = sata_port->ioa_cfg; | |
6107 | struct ipr_cmnd *ipr_cmd; | |
6108 | struct ipr_ioarcb *ioarcb; | |
6109 | struct ipr_ioarcb_ata_regs *regs; | |
6110 | ||
6111 | if (unlikely(!ioa_cfg->allow_cmds || ioa_cfg->ioa_is_dead)) | |
0feeed82 | 6112 | return AC_ERR_SYSTEM; |
35a39691 BK |
6113 | |
6114 | ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg); | |
6115 | ioarcb = &ipr_cmd->ioarcb; | |
35a39691 | 6116 | |
a32c055f WB |
6117 | if (ioa_cfg->sis64) { |
6118 | regs = &ipr_cmd->i.ata_ioadl.regs; | |
6119 | ioarcb->add_cmd_parms_offset = cpu_to_be16(sizeof(*ioarcb)); | |
6120 | } else | |
6121 | regs = &ioarcb->u.add_data.u.regs; | |
6122 | ||
6123 | memset(regs, 0, sizeof(*regs)); | |
6124 | ioarcb->add_cmd_parms_len = cpu_to_be16(sizeof(*regs)); | |
35a39691 BK |
6125 | |
6126 | list_add_tail(&ipr_cmd->queue, &ioa_cfg->pending_q); | |
6127 | ipr_cmd->qc = qc; | |
6128 | ipr_cmd->done = ipr_sata_done; | |
3e7ebdfa | 6129 | ipr_cmd->ioarcb.res_handle = res->res_handle; |
35a39691 BK |
6130 | ioarcb->cmd_pkt.request_type = IPR_RQTYPE_ATA_PASSTHRU; |
6131 | ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_NO_LINK_DESC; | |
6132 | ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_NO_ULEN_CHK; | |
dde20207 | 6133 | ipr_cmd->dma_use_sg = qc->n_elem; |
35a39691 | 6134 | |
a32c055f WB |
6135 | if (ioa_cfg->sis64) |
6136 | ipr_build_ata_ioadl64(ipr_cmd, qc); | |
6137 | else | |
6138 | ipr_build_ata_ioadl(ipr_cmd, qc); | |
6139 | ||
35a39691 BK |
6140 | regs->flags |= IPR_ATA_FLAG_STATUS_ON_GOOD_COMPLETION; |
6141 | ipr_copy_sata_tf(regs, &qc->tf); | |
6142 | memcpy(ioarcb->cmd_pkt.cdb, qc->cdb, IPR_MAX_CDB_LEN); | |
3e7ebdfa | 6143 | ipr_trc_hook(ipr_cmd, IPR_TRACE_START, IPR_GET_RES_PHYS_LOC(res)); |
35a39691 BK |
6144 | |
6145 | switch (qc->tf.protocol) { | |
6146 | case ATA_PROT_NODATA: | |
6147 | case ATA_PROT_PIO: | |
6148 | break; | |
6149 | ||
6150 | case ATA_PROT_DMA: | |
6151 | regs->flags |= IPR_ATA_FLAG_XFER_TYPE_DMA; | |
6152 | break; | |
6153 | ||
0dc36888 TH |
6154 | case ATAPI_PROT_PIO: |
6155 | case ATAPI_PROT_NODATA: | |
35a39691 BK |
6156 | regs->flags |= IPR_ATA_FLAG_PACKET_CMD; |
6157 | break; | |
6158 | ||
0dc36888 | 6159 | case ATAPI_PROT_DMA: |
35a39691 BK |
6160 | regs->flags |= IPR_ATA_FLAG_PACKET_CMD; |
6161 | regs->flags |= IPR_ATA_FLAG_XFER_TYPE_DMA; | |
6162 | break; | |
6163 | ||
6164 | default: | |
6165 | WARN_ON(1); | |
0feeed82 | 6166 | return AC_ERR_INVALID; |
35a39691 BK |
6167 | } |
6168 | ||
6169 | mb(); | |
a32c055f WB |
6170 | |
6171 | ipr_send_command(ipr_cmd); | |
6172 | ||
35a39691 BK |
6173 | return 0; |
6174 | } | |
6175 | ||
4c9bf4e7 TH |
6176 | /** |
6177 | * ipr_qc_fill_rtf - Read result TF | |
6178 | * @qc: ATA queued command | |
6179 | * | |
6180 | * Return value: | |
6181 | * true | |
6182 | **/ | |
6183 | static bool ipr_qc_fill_rtf(struct ata_queued_cmd *qc) | |
6184 | { | |
6185 | struct ipr_sata_port *sata_port = qc->ap->private_data; | |
6186 | struct ipr_ioasa_gata *g = &sata_port->ioasa; | |
6187 | struct ata_taskfile *tf = &qc->result_tf; | |
6188 | ||
6189 | tf->feature = g->error; | |
6190 | tf->nsect = g->nsect; | |
6191 | tf->lbal = g->lbal; | |
6192 | tf->lbam = g->lbam; | |
6193 | tf->lbah = g->lbah; | |
6194 | tf->device = g->device; | |
6195 | tf->command = g->status; | |
6196 | tf->hob_nsect = g->hob_nsect; | |
6197 | tf->hob_lbal = g->hob_lbal; | |
6198 | tf->hob_lbam = g->hob_lbam; | |
6199 | tf->hob_lbah = g->hob_lbah; | |
6200 | tf->ctl = g->alt_status; | |
6201 | ||
6202 | return true; | |
6203 | } | |
6204 | ||
35a39691 | 6205 | static struct ata_port_operations ipr_sata_ops = { |
35a39691 | 6206 | .phy_reset = ipr_ata_phy_reset, |
a1efdaba | 6207 | .hardreset = ipr_sata_reset, |
35a39691 | 6208 | .post_internal_cmd = ipr_ata_post_internal, |
35a39691 BK |
6209 | .qc_prep = ata_noop_qc_prep, |
6210 | .qc_issue = ipr_qc_issue, | |
4c9bf4e7 | 6211 | .qc_fill_rtf = ipr_qc_fill_rtf, |
35a39691 BK |
6212 | .port_start = ata_sas_port_start, |
6213 | .port_stop = ata_sas_port_stop | |
6214 | }; | |
6215 | ||
6216 | static struct ata_port_info sata_port_info = { | |
6217 | .flags = ATA_FLAG_SATA | ATA_FLAG_NO_LEGACY | ATA_FLAG_SATA_RESET | | |
6218 | ATA_FLAG_MMIO | ATA_FLAG_PIO_DMA, | |
6219 | .pio_mask = 0x10, /* pio4 */ | |
6220 | .mwdma_mask = 0x07, | |
6221 | .udma_mask = 0x7f, /* udma0-6 */ | |
6222 | .port_ops = &ipr_sata_ops | |
6223 | }; | |
6224 | ||
1da177e4 LT |
6225 | #ifdef CONFIG_PPC_PSERIES |
6226 | static const u16 ipr_blocked_processors[] = { | |
6227 | PV_NORTHSTAR, | |
6228 | PV_PULSAR, | |
6229 | PV_POWER4, | |
6230 | PV_ICESTAR, | |
6231 | PV_SSTAR, | |
6232 | PV_POWER4p, | |
6233 | PV_630, | |
6234 | PV_630p | |
6235 | }; | |
6236 | ||
6237 | /** | |
6238 | * ipr_invalid_adapter - Determine if this adapter is supported on this hardware | |
6239 | * @ioa_cfg: ioa cfg struct | |
6240 | * | |
6241 | * Adapters that use Gemstone revision < 3.1 do not work reliably on | |
6242 | * certain pSeries hardware. This function determines if the given | |
6243 | * adapter is in one of these confgurations or not. | |
6244 | * | |
6245 | * Return value: | |
6246 | * 1 if adapter is not supported / 0 if adapter is supported | |
6247 | **/ | |
6248 | static int ipr_invalid_adapter(struct ipr_ioa_cfg *ioa_cfg) | |
6249 | { | |
1da177e4 LT |
6250 | int i; |
6251 | ||
44c10138 AK |
6252 | if ((ioa_cfg->type == 0x5702) && (ioa_cfg->pdev->revision < 4)) { |
6253 | for (i = 0; i < ARRAY_SIZE(ipr_blocked_processors); i++){ | |
6254 | if (__is_processor(ipr_blocked_processors[i])) | |
6255 | return 1; | |
1da177e4 LT |
6256 | } |
6257 | } | |
6258 | return 0; | |
6259 | } | |
6260 | #else | |
6261 | #define ipr_invalid_adapter(ioa_cfg) 0 | |
6262 | #endif | |
6263 | ||
6264 | /** | |
6265 | * ipr_ioa_bringdown_done - IOA bring down completion. | |
6266 | * @ipr_cmd: ipr command struct | |
6267 | * | |
6268 | * This function processes the completion of an adapter bring down. | |
6269 | * It wakes any reset sleepers. | |
6270 | * | |
6271 | * Return value: | |
6272 | * IPR_RC_JOB_RETURN | |
6273 | **/ | |
6274 | static int ipr_ioa_bringdown_done(struct ipr_cmnd *ipr_cmd) | |
6275 | { | |
6276 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; | |
6277 | ||
6278 | ENTER; | |
6279 | ioa_cfg->in_reset_reload = 0; | |
6280 | ioa_cfg->reset_retries = 0; | |
6281 | list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q); | |
6282 | wake_up_all(&ioa_cfg->reset_wait_q); | |
6283 | ||
6284 | spin_unlock_irq(ioa_cfg->host->host_lock); | |
6285 | scsi_unblock_requests(ioa_cfg->host); | |
6286 | spin_lock_irq(ioa_cfg->host->host_lock); | |
6287 | LEAVE; | |
6288 | ||
6289 | return IPR_RC_JOB_RETURN; | |
6290 | } | |
6291 | ||
6292 | /** | |
6293 | * ipr_ioa_reset_done - IOA reset completion. | |
6294 | * @ipr_cmd: ipr command struct | |
6295 | * | |
6296 | * This function processes the completion of an adapter reset. | |
6297 | * It schedules any necessary mid-layer add/removes and | |
6298 | * wakes any reset sleepers. | |
6299 | * | |
6300 | * Return value: | |
6301 | * IPR_RC_JOB_RETURN | |
6302 | **/ | |
6303 | static int ipr_ioa_reset_done(struct ipr_cmnd *ipr_cmd) | |
6304 | { | |
6305 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; | |
6306 | struct ipr_resource_entry *res; | |
6307 | struct ipr_hostrcb *hostrcb, *temp; | |
6308 | int i = 0; | |
6309 | ||
6310 | ENTER; | |
6311 | ioa_cfg->in_reset_reload = 0; | |
6312 | ioa_cfg->allow_cmds = 1; | |
6313 | ioa_cfg->reset_cmd = NULL; | |
3d1d0da6 | 6314 | ioa_cfg->doorbell |= IPR_RUNTIME_RESET; |
1da177e4 LT |
6315 | |
6316 | list_for_each_entry(res, &ioa_cfg->used_res_q, queue) { | |
6317 | if (ioa_cfg->allow_ml_add_del && (res->add_to_ml || res->del_from_ml)) { | |
6318 | ipr_trace; | |
6319 | break; | |
6320 | } | |
6321 | } | |
6322 | schedule_work(&ioa_cfg->work_q); | |
6323 | ||
6324 | list_for_each_entry_safe(hostrcb, temp, &ioa_cfg->hostrcb_free_q, queue) { | |
6325 | list_del(&hostrcb->queue); | |
6326 | if (i++ < IPR_NUM_LOG_HCAMS) | |
6327 | ipr_send_hcam(ioa_cfg, IPR_HCAM_CDB_OP_CODE_LOG_DATA, hostrcb); | |
6328 | else | |
6329 | ipr_send_hcam(ioa_cfg, IPR_HCAM_CDB_OP_CODE_CONFIG_CHANGE, hostrcb); | |
6330 | } | |
6331 | ||
6bb04170 | 6332 | scsi_report_bus_reset(ioa_cfg->host, IPR_VSET_BUS); |
1da177e4 LT |
6333 | dev_info(&ioa_cfg->pdev->dev, "IOA initialized.\n"); |
6334 | ||
6335 | ioa_cfg->reset_retries = 0; | |
6336 | list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q); | |
6337 | wake_up_all(&ioa_cfg->reset_wait_q); | |
6338 | ||
30237853 | 6339 | spin_unlock(ioa_cfg->host->host_lock); |
1da177e4 | 6340 | scsi_unblock_requests(ioa_cfg->host); |
30237853 | 6341 | spin_lock(ioa_cfg->host->host_lock); |
1da177e4 LT |
6342 | |
6343 | if (!ioa_cfg->allow_cmds) | |
6344 | scsi_block_requests(ioa_cfg->host); | |
6345 | ||
6346 | LEAVE; | |
6347 | return IPR_RC_JOB_RETURN; | |
6348 | } | |
6349 | ||
6350 | /** | |
6351 | * ipr_set_sup_dev_dflt - Initialize a Set Supported Device buffer | |
6352 | * @supported_dev: supported device struct | |
6353 | * @vpids: vendor product id struct | |
6354 | * | |
6355 | * Return value: | |
6356 | * none | |
6357 | **/ | |
6358 | static void ipr_set_sup_dev_dflt(struct ipr_supported_device *supported_dev, | |
6359 | struct ipr_std_inq_vpids *vpids) | |
6360 | { | |
6361 | memset(supported_dev, 0, sizeof(struct ipr_supported_device)); | |
6362 | memcpy(&supported_dev->vpids, vpids, sizeof(struct ipr_std_inq_vpids)); | |
6363 | supported_dev->num_records = 1; | |
6364 | supported_dev->data_length = | |
6365 | cpu_to_be16(sizeof(struct ipr_supported_device)); | |
6366 | supported_dev->reserved = 0; | |
6367 | } | |
6368 | ||
6369 | /** | |
6370 | * ipr_set_supported_devs - Send Set Supported Devices for a device | |
6371 | * @ipr_cmd: ipr command struct | |
6372 | * | |
a32c055f | 6373 | * This function sends a Set Supported Devices to the adapter |
1da177e4 LT |
6374 | * |
6375 | * Return value: | |
6376 | * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN | |
6377 | **/ | |
6378 | static int ipr_set_supported_devs(struct ipr_cmnd *ipr_cmd) | |
6379 | { | |
6380 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; | |
6381 | struct ipr_supported_device *supp_dev = &ioa_cfg->vpd_cbs->supp_dev; | |
1da177e4 LT |
6382 | struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb; |
6383 | struct ipr_resource_entry *res = ipr_cmd->u.res; | |
6384 | ||
6385 | ipr_cmd->job_step = ipr_ioa_reset_done; | |
6386 | ||
6387 | list_for_each_entry_continue(res, &ioa_cfg->used_res_q, queue) { | |
e4fbf44e | 6388 | if (!ipr_is_scsi_disk(res)) |
1da177e4 LT |
6389 | continue; |
6390 | ||
6391 | ipr_cmd->u.res = res; | |
3e7ebdfa | 6392 | ipr_set_sup_dev_dflt(supp_dev, &res->std_inq_data.vpids); |
1da177e4 LT |
6393 | |
6394 | ioarcb->res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE); | |
6395 | ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ; | |
6396 | ioarcb->cmd_pkt.request_type = IPR_RQTYPE_IOACMD; | |
6397 | ||
6398 | ioarcb->cmd_pkt.cdb[0] = IPR_SET_SUPPORTED_DEVICES; | |
3e7ebdfa | 6399 | ioarcb->cmd_pkt.cdb[1] = IPR_SET_ALL_SUPPORTED_DEVICES; |
1da177e4 LT |
6400 | ioarcb->cmd_pkt.cdb[7] = (sizeof(struct ipr_supported_device) >> 8) & 0xff; |
6401 | ioarcb->cmd_pkt.cdb[8] = sizeof(struct ipr_supported_device) & 0xff; | |
6402 | ||
a32c055f WB |
6403 | ipr_init_ioadl(ipr_cmd, |
6404 | ioa_cfg->vpd_cbs_dma + | |
6405 | offsetof(struct ipr_misc_cbs, supp_dev), | |
6406 | sizeof(struct ipr_supported_device), | |
6407 | IPR_IOADL_FLAGS_WRITE_LAST); | |
1da177e4 LT |
6408 | |
6409 | ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, | |
6410 | IPR_SET_SUP_DEVICE_TIMEOUT); | |
6411 | ||
3e7ebdfa WB |
6412 | if (!ioa_cfg->sis64) |
6413 | ipr_cmd->job_step = ipr_set_supported_devs; | |
1da177e4 LT |
6414 | return IPR_RC_JOB_RETURN; |
6415 | } | |
6416 | ||
6417 | return IPR_RC_JOB_CONTINUE; | |
6418 | } | |
6419 | ||
6420 | /** | |
6421 | * ipr_get_mode_page - Locate specified mode page | |
6422 | * @mode_pages: mode page buffer | |
6423 | * @page_code: page code to find | |
6424 | * @len: minimum required length for mode page | |
6425 | * | |
6426 | * Return value: | |
6427 | * pointer to mode page / NULL on failure | |
6428 | **/ | |
6429 | static void *ipr_get_mode_page(struct ipr_mode_pages *mode_pages, | |
6430 | u32 page_code, u32 len) | |
6431 | { | |
6432 | struct ipr_mode_page_hdr *mode_hdr; | |
6433 | u32 page_length; | |
6434 | u32 length; | |
6435 | ||
6436 | if (!mode_pages || (mode_pages->hdr.length == 0)) | |
6437 | return NULL; | |
6438 | ||
6439 | length = (mode_pages->hdr.length + 1) - 4 - mode_pages->hdr.block_desc_len; | |
6440 | mode_hdr = (struct ipr_mode_page_hdr *) | |
6441 | (mode_pages->data + mode_pages->hdr.block_desc_len); | |
6442 | ||
6443 | while (length) { | |
6444 | if (IPR_GET_MODE_PAGE_CODE(mode_hdr) == page_code) { | |
6445 | if (mode_hdr->page_length >= (len - sizeof(struct ipr_mode_page_hdr))) | |
6446 | return mode_hdr; | |
6447 | break; | |
6448 | } else { | |
6449 | page_length = (sizeof(struct ipr_mode_page_hdr) + | |
6450 | mode_hdr->page_length); | |
6451 | length -= page_length; | |
6452 | mode_hdr = (struct ipr_mode_page_hdr *) | |
6453 | ((unsigned long)mode_hdr + page_length); | |
6454 | } | |
6455 | } | |
6456 | return NULL; | |
6457 | } | |
6458 | ||
6459 | /** | |
6460 | * ipr_check_term_power - Check for term power errors | |
6461 | * @ioa_cfg: ioa config struct | |
6462 | * @mode_pages: IOAFP mode pages buffer | |
6463 | * | |
6464 | * Check the IOAFP's mode page 28 for term power errors | |
6465 | * | |
6466 | * Return value: | |
6467 | * nothing | |
6468 | **/ | |
6469 | static void ipr_check_term_power(struct ipr_ioa_cfg *ioa_cfg, | |
6470 | struct ipr_mode_pages *mode_pages) | |
6471 | { | |
6472 | int i; | |
6473 | int entry_length; | |
6474 | struct ipr_dev_bus_entry *bus; | |
6475 | struct ipr_mode_page28 *mode_page; | |
6476 | ||
6477 | mode_page = ipr_get_mode_page(mode_pages, 0x28, | |
6478 | sizeof(struct ipr_mode_page28)); | |
6479 | ||
6480 | entry_length = mode_page->entry_length; | |
6481 | ||
6482 | bus = mode_page->bus; | |
6483 | ||
6484 | for (i = 0; i < mode_page->num_entries; i++) { | |
6485 | if (bus->flags & IPR_SCSI_ATTR_NO_TERM_PWR) { | |
6486 | dev_err(&ioa_cfg->pdev->dev, | |
6487 | "Term power is absent on scsi bus %d\n", | |
6488 | bus->res_addr.bus); | |
6489 | } | |
6490 | ||
6491 | bus = (struct ipr_dev_bus_entry *)((char *)bus + entry_length); | |
6492 | } | |
6493 | } | |
6494 | ||
6495 | /** | |
6496 | * ipr_scsi_bus_speed_limit - Limit the SCSI speed based on SES table | |
6497 | * @ioa_cfg: ioa config struct | |
6498 | * | |
6499 | * Looks through the config table checking for SES devices. If | |
6500 | * the SES device is in the SES table indicating a maximum SCSI | |
6501 | * bus speed, the speed is limited for the bus. | |
6502 | * | |
6503 | * Return value: | |
6504 | * none | |
6505 | **/ | |
6506 | static void ipr_scsi_bus_speed_limit(struct ipr_ioa_cfg *ioa_cfg) | |
6507 | { | |
6508 | u32 max_xfer_rate; | |
6509 | int i; | |
6510 | ||
6511 | for (i = 0; i < IPR_MAX_NUM_BUSES; i++) { | |
6512 | max_xfer_rate = ipr_get_max_scsi_speed(ioa_cfg, i, | |
6513 | ioa_cfg->bus_attr[i].bus_width); | |
6514 | ||
6515 | if (max_xfer_rate < ioa_cfg->bus_attr[i].max_xfer_rate) | |
6516 | ioa_cfg->bus_attr[i].max_xfer_rate = max_xfer_rate; | |
6517 | } | |
6518 | } | |
6519 | ||
6520 | /** | |
6521 | * ipr_modify_ioafp_mode_page_28 - Modify IOAFP Mode Page 28 | |
6522 | * @ioa_cfg: ioa config struct | |
6523 | * @mode_pages: mode page 28 buffer | |
6524 | * | |
6525 | * Updates mode page 28 based on driver configuration | |
6526 | * | |
6527 | * Return value: | |
6528 | * none | |
6529 | **/ | |
6530 | static void ipr_modify_ioafp_mode_page_28(struct ipr_ioa_cfg *ioa_cfg, | |
6531 | struct ipr_mode_pages *mode_pages) | |
6532 | { | |
6533 | int i, entry_length; | |
6534 | struct ipr_dev_bus_entry *bus; | |
6535 | struct ipr_bus_attributes *bus_attr; | |
6536 | struct ipr_mode_page28 *mode_page; | |
6537 | ||
6538 | mode_page = ipr_get_mode_page(mode_pages, 0x28, | |
6539 | sizeof(struct ipr_mode_page28)); | |
6540 | ||
6541 | entry_length = mode_page->entry_length; | |
6542 | ||
6543 | /* Loop for each device bus entry */ | |
6544 | for (i = 0, bus = mode_page->bus; | |
6545 | i < mode_page->num_entries; | |
6546 | i++, bus = (struct ipr_dev_bus_entry *)((u8 *)bus + entry_length)) { | |
6547 | if (bus->res_addr.bus > IPR_MAX_NUM_BUSES) { | |
6548 | dev_err(&ioa_cfg->pdev->dev, | |
6549 | "Invalid resource address reported: 0x%08X\n", | |
6550 | IPR_GET_PHYS_LOC(bus->res_addr)); | |
6551 | continue; | |
6552 | } | |
6553 | ||
6554 | bus_attr = &ioa_cfg->bus_attr[i]; | |
6555 | bus->extended_reset_delay = IPR_EXTENDED_RESET_DELAY; | |
6556 | bus->bus_width = bus_attr->bus_width; | |
6557 | bus->max_xfer_rate = cpu_to_be32(bus_attr->max_xfer_rate); | |
6558 | bus->flags &= ~IPR_SCSI_ATTR_QAS_MASK; | |
6559 | if (bus_attr->qas_enabled) | |
6560 | bus->flags |= IPR_SCSI_ATTR_ENABLE_QAS; | |
6561 | else | |
6562 | bus->flags |= IPR_SCSI_ATTR_DISABLE_QAS; | |
6563 | } | |
6564 | } | |
6565 | ||
6566 | /** | |
6567 | * ipr_build_mode_select - Build a mode select command | |
6568 | * @ipr_cmd: ipr command struct | |
6569 | * @res_handle: resource handle to send command to | |
6570 | * @parm: Byte 2 of Mode Sense command | |
6571 | * @dma_addr: DMA buffer address | |
6572 | * @xfer_len: data transfer length | |
6573 | * | |
6574 | * Return value: | |
6575 | * none | |
6576 | **/ | |
6577 | static void ipr_build_mode_select(struct ipr_cmnd *ipr_cmd, | |
a32c055f WB |
6578 | __be32 res_handle, u8 parm, |
6579 | dma_addr_t dma_addr, u8 xfer_len) | |
1da177e4 | 6580 | { |
1da177e4 LT |
6581 | struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb; |
6582 | ||
6583 | ioarcb->res_handle = res_handle; | |
6584 | ioarcb->cmd_pkt.request_type = IPR_RQTYPE_SCSICDB; | |
6585 | ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ; | |
6586 | ioarcb->cmd_pkt.cdb[0] = MODE_SELECT; | |
6587 | ioarcb->cmd_pkt.cdb[1] = parm; | |
6588 | ioarcb->cmd_pkt.cdb[4] = xfer_len; | |
6589 | ||
a32c055f | 6590 | ipr_init_ioadl(ipr_cmd, dma_addr, xfer_len, IPR_IOADL_FLAGS_WRITE_LAST); |
1da177e4 LT |
6591 | } |
6592 | ||
6593 | /** | |
6594 | * ipr_ioafp_mode_select_page28 - Issue Mode Select Page 28 to IOA | |
6595 | * @ipr_cmd: ipr command struct | |
6596 | * | |
6597 | * This function sets up the SCSI bus attributes and sends | |
6598 | * a Mode Select for Page 28 to activate them. | |
6599 | * | |
6600 | * Return value: | |
6601 | * IPR_RC_JOB_RETURN | |
6602 | **/ | |
6603 | static int ipr_ioafp_mode_select_page28(struct ipr_cmnd *ipr_cmd) | |
6604 | { | |
6605 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; | |
6606 | struct ipr_mode_pages *mode_pages = &ioa_cfg->vpd_cbs->mode_pages; | |
6607 | int length; | |
6608 | ||
6609 | ENTER; | |
4733804c BK |
6610 | ipr_scsi_bus_speed_limit(ioa_cfg); |
6611 | ipr_check_term_power(ioa_cfg, mode_pages); | |
6612 | ipr_modify_ioafp_mode_page_28(ioa_cfg, mode_pages); | |
6613 | length = mode_pages->hdr.length + 1; | |
6614 | mode_pages->hdr.length = 0; | |
1da177e4 LT |
6615 | |
6616 | ipr_build_mode_select(ipr_cmd, cpu_to_be32(IPR_IOA_RES_HANDLE), 0x11, | |
6617 | ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, mode_pages), | |
6618 | length); | |
6619 | ||
f72919ec WB |
6620 | ipr_cmd->job_step = ipr_set_supported_devs; |
6621 | ipr_cmd->u.res = list_entry(ioa_cfg->used_res_q.next, | |
6622 | struct ipr_resource_entry, queue); | |
1da177e4 LT |
6623 | ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT); |
6624 | ||
6625 | LEAVE; | |
6626 | return IPR_RC_JOB_RETURN; | |
6627 | } | |
6628 | ||
6629 | /** | |
6630 | * ipr_build_mode_sense - Builds a mode sense command | |
6631 | * @ipr_cmd: ipr command struct | |
6632 | * @res: resource entry struct | |
6633 | * @parm: Byte 2 of mode sense command | |
6634 | * @dma_addr: DMA address of mode sense buffer | |
6635 | * @xfer_len: Size of DMA buffer | |
6636 | * | |
6637 | * Return value: | |
6638 | * none | |
6639 | **/ | |
6640 | static void ipr_build_mode_sense(struct ipr_cmnd *ipr_cmd, | |
6641 | __be32 res_handle, | |
a32c055f | 6642 | u8 parm, dma_addr_t dma_addr, u8 xfer_len) |
1da177e4 | 6643 | { |
1da177e4 LT |
6644 | struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb; |
6645 | ||
6646 | ioarcb->res_handle = res_handle; | |
6647 | ioarcb->cmd_pkt.cdb[0] = MODE_SENSE; | |
6648 | ioarcb->cmd_pkt.cdb[2] = parm; | |
6649 | ioarcb->cmd_pkt.cdb[4] = xfer_len; | |
6650 | ioarcb->cmd_pkt.request_type = IPR_RQTYPE_SCSICDB; | |
6651 | ||
a32c055f | 6652 | ipr_init_ioadl(ipr_cmd, dma_addr, xfer_len, IPR_IOADL_FLAGS_READ_LAST); |
1da177e4 LT |
6653 | } |
6654 | ||
dfed823e | 6655 | /** |
6656 | * ipr_reset_cmd_failed - Handle failure of IOA reset command | |
6657 | * @ipr_cmd: ipr command struct | |
6658 | * | |
6659 | * This function handles the failure of an IOA bringup command. | |
6660 | * | |
6661 | * Return value: | |
6662 | * IPR_RC_JOB_RETURN | |
6663 | **/ | |
6664 | static int ipr_reset_cmd_failed(struct ipr_cmnd *ipr_cmd) | |
6665 | { | |
6666 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; | |
96d21f00 | 6667 | u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc); |
dfed823e | 6668 | |
6669 | dev_err(&ioa_cfg->pdev->dev, | |
6670 | "0x%02X failed with IOASC: 0x%08X\n", | |
6671 | ipr_cmd->ioarcb.cmd_pkt.cdb[0], ioasc); | |
6672 | ||
6673 | ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE); | |
6674 | list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q); | |
6675 | return IPR_RC_JOB_RETURN; | |
6676 | } | |
6677 | ||
6678 | /** | |
6679 | * ipr_reset_mode_sense_failed - Handle failure of IOAFP mode sense | |
6680 | * @ipr_cmd: ipr command struct | |
6681 | * | |
6682 | * This function handles the failure of a Mode Sense to the IOAFP. | |
6683 | * Some adapters do not handle all mode pages. | |
6684 | * | |
6685 | * Return value: | |
6686 | * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN | |
6687 | **/ | |
6688 | static int ipr_reset_mode_sense_failed(struct ipr_cmnd *ipr_cmd) | |
6689 | { | |
f72919ec | 6690 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; |
96d21f00 | 6691 | u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc); |
dfed823e | 6692 | |
6693 | if (ioasc == IPR_IOASC_IR_INVALID_REQ_TYPE_OR_PKT) { | |
f72919ec WB |
6694 | ipr_cmd->job_step = ipr_set_supported_devs; |
6695 | ipr_cmd->u.res = list_entry(ioa_cfg->used_res_q.next, | |
6696 | struct ipr_resource_entry, queue); | |
dfed823e | 6697 | return IPR_RC_JOB_CONTINUE; |
6698 | } | |
6699 | ||
6700 | return ipr_reset_cmd_failed(ipr_cmd); | |
6701 | } | |
6702 | ||
1da177e4 LT |
6703 | /** |
6704 | * ipr_ioafp_mode_sense_page28 - Issue Mode Sense Page 28 to IOA | |
6705 | * @ipr_cmd: ipr command struct | |
6706 | * | |
6707 | * This function send a Page 28 mode sense to the IOA to | |
6708 | * retrieve SCSI bus attributes. | |
6709 | * | |
6710 | * Return value: | |
6711 | * IPR_RC_JOB_RETURN | |
6712 | **/ | |
6713 | static int ipr_ioafp_mode_sense_page28(struct ipr_cmnd *ipr_cmd) | |
6714 | { | |
6715 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; | |
6716 | ||
6717 | ENTER; | |
6718 | ipr_build_mode_sense(ipr_cmd, cpu_to_be32(IPR_IOA_RES_HANDLE), | |
6719 | 0x28, ioa_cfg->vpd_cbs_dma + | |
6720 | offsetof(struct ipr_misc_cbs, mode_pages), | |
6721 | sizeof(struct ipr_mode_pages)); | |
6722 | ||
6723 | ipr_cmd->job_step = ipr_ioafp_mode_select_page28; | |
dfed823e | 6724 | ipr_cmd->job_step_failed = ipr_reset_mode_sense_failed; |
1da177e4 LT |
6725 | |
6726 | ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT); | |
6727 | ||
6728 | LEAVE; | |
6729 | return IPR_RC_JOB_RETURN; | |
6730 | } | |
6731 | ||
ac09c349 BK |
6732 | /** |
6733 | * ipr_ioafp_mode_select_page24 - Issue Mode Select to IOA | |
6734 | * @ipr_cmd: ipr command struct | |
6735 | * | |
6736 | * This function enables dual IOA RAID support if possible. | |
6737 | * | |
6738 | * Return value: | |
6739 | * IPR_RC_JOB_RETURN | |
6740 | **/ | |
6741 | static int ipr_ioafp_mode_select_page24(struct ipr_cmnd *ipr_cmd) | |
6742 | { | |
6743 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; | |
6744 | struct ipr_mode_pages *mode_pages = &ioa_cfg->vpd_cbs->mode_pages; | |
6745 | struct ipr_mode_page24 *mode_page; | |
6746 | int length; | |
6747 | ||
6748 | ENTER; | |
6749 | mode_page = ipr_get_mode_page(mode_pages, 0x24, | |
6750 | sizeof(struct ipr_mode_page24)); | |
6751 | ||
6752 | if (mode_page) | |
6753 | mode_page->flags |= IPR_ENABLE_DUAL_IOA_AF; | |
6754 | ||
6755 | length = mode_pages->hdr.length + 1; | |
6756 | mode_pages->hdr.length = 0; | |
6757 | ||
6758 | ipr_build_mode_select(ipr_cmd, cpu_to_be32(IPR_IOA_RES_HANDLE), 0x11, | |
6759 | ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, mode_pages), | |
6760 | length); | |
6761 | ||
6762 | ipr_cmd->job_step = ipr_ioafp_mode_sense_page28; | |
6763 | ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT); | |
6764 | ||
6765 | LEAVE; | |
6766 | return IPR_RC_JOB_RETURN; | |
6767 | } | |
6768 | ||
6769 | /** | |
6770 | * ipr_reset_mode_sense_page24_failed - Handle failure of IOAFP mode sense | |
6771 | * @ipr_cmd: ipr command struct | |
6772 | * | |
6773 | * This function handles the failure of a Mode Sense to the IOAFP. | |
6774 | * Some adapters do not handle all mode pages. | |
6775 | * | |
6776 | * Return value: | |
6777 | * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN | |
6778 | **/ | |
6779 | static int ipr_reset_mode_sense_page24_failed(struct ipr_cmnd *ipr_cmd) | |
6780 | { | |
96d21f00 | 6781 | u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc); |
ac09c349 BK |
6782 | |
6783 | if (ioasc == IPR_IOASC_IR_INVALID_REQ_TYPE_OR_PKT) { | |
6784 | ipr_cmd->job_step = ipr_ioafp_mode_sense_page28; | |
6785 | return IPR_RC_JOB_CONTINUE; | |
6786 | } | |
6787 | ||
6788 | return ipr_reset_cmd_failed(ipr_cmd); | |
6789 | } | |
6790 | ||
6791 | /** | |
6792 | * ipr_ioafp_mode_sense_page24 - Issue Page 24 Mode Sense to IOA | |
6793 | * @ipr_cmd: ipr command struct | |
6794 | * | |
6795 | * This function send a mode sense to the IOA to retrieve | |
6796 | * the IOA Advanced Function Control mode page. | |
6797 | * | |
6798 | * Return value: | |
6799 | * IPR_RC_JOB_RETURN | |
6800 | **/ | |
6801 | static int ipr_ioafp_mode_sense_page24(struct ipr_cmnd *ipr_cmd) | |
6802 | { | |
6803 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; | |
6804 | ||
6805 | ENTER; | |
6806 | ipr_build_mode_sense(ipr_cmd, cpu_to_be32(IPR_IOA_RES_HANDLE), | |
6807 | 0x24, ioa_cfg->vpd_cbs_dma + | |
6808 | offsetof(struct ipr_misc_cbs, mode_pages), | |
6809 | sizeof(struct ipr_mode_pages)); | |
6810 | ||
6811 | ipr_cmd->job_step = ipr_ioafp_mode_select_page24; | |
6812 | ipr_cmd->job_step_failed = ipr_reset_mode_sense_page24_failed; | |
6813 | ||
6814 | ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT); | |
6815 | ||
6816 | LEAVE; | |
6817 | return IPR_RC_JOB_RETURN; | |
6818 | } | |
6819 | ||
1da177e4 LT |
6820 | /** |
6821 | * ipr_init_res_table - Initialize the resource table | |
6822 | * @ipr_cmd: ipr command struct | |
6823 | * | |
6824 | * This function looks through the existing resource table, comparing | |
6825 | * it with the config table. This function will take care of old/new | |
6826 | * devices and schedule adding/removing them from the mid-layer | |
6827 | * as appropriate. | |
6828 | * | |
6829 | * Return value: | |
6830 | * IPR_RC_JOB_CONTINUE | |
6831 | **/ | |
6832 | static int ipr_init_res_table(struct ipr_cmnd *ipr_cmd) | |
6833 | { | |
6834 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; | |
6835 | struct ipr_resource_entry *res, *temp; | |
3e7ebdfa WB |
6836 | struct ipr_config_table_entry_wrapper cfgtew; |
6837 | int entries, found, flag, i; | |
1da177e4 LT |
6838 | LIST_HEAD(old_res); |
6839 | ||
6840 | ENTER; | |
3e7ebdfa WB |
6841 | if (ioa_cfg->sis64) |
6842 | flag = ioa_cfg->u.cfg_table64->hdr64.flags; | |
6843 | else | |
6844 | flag = ioa_cfg->u.cfg_table->hdr.flags; | |
6845 | ||
6846 | if (flag & IPR_UCODE_DOWNLOAD_REQ) | |
1da177e4 LT |
6847 | dev_err(&ioa_cfg->pdev->dev, "Microcode download required\n"); |
6848 | ||
6849 | list_for_each_entry_safe(res, temp, &ioa_cfg->used_res_q, queue) | |
6850 | list_move_tail(&res->queue, &old_res); | |
6851 | ||
3e7ebdfa | 6852 | if (ioa_cfg->sis64) |
438b0331 | 6853 | entries = be16_to_cpu(ioa_cfg->u.cfg_table64->hdr64.num_entries); |
3e7ebdfa WB |
6854 | else |
6855 | entries = ioa_cfg->u.cfg_table->hdr.num_entries; | |
6856 | ||
6857 | for (i = 0; i < entries; i++) { | |
6858 | if (ioa_cfg->sis64) | |
6859 | cfgtew.u.cfgte64 = &ioa_cfg->u.cfg_table64->dev[i]; | |
6860 | else | |
6861 | cfgtew.u.cfgte = &ioa_cfg->u.cfg_table->dev[i]; | |
1da177e4 LT |
6862 | found = 0; |
6863 | ||
6864 | list_for_each_entry_safe(res, temp, &old_res, queue) { | |
3e7ebdfa | 6865 | if (ipr_is_same_device(res, &cfgtew)) { |
1da177e4 LT |
6866 | list_move_tail(&res->queue, &ioa_cfg->used_res_q); |
6867 | found = 1; | |
6868 | break; | |
6869 | } | |
6870 | } | |
6871 | ||
6872 | if (!found) { | |
6873 | if (list_empty(&ioa_cfg->free_res_q)) { | |
6874 | dev_err(&ioa_cfg->pdev->dev, "Too many devices attached\n"); | |
6875 | break; | |
6876 | } | |
6877 | ||
6878 | found = 1; | |
6879 | res = list_entry(ioa_cfg->free_res_q.next, | |
6880 | struct ipr_resource_entry, queue); | |
6881 | list_move_tail(&res->queue, &ioa_cfg->used_res_q); | |
3e7ebdfa | 6882 | ipr_init_res_entry(res, &cfgtew); |
1da177e4 | 6883 | res->add_to_ml = 1; |
56115598 WB |
6884 | } else if (res->sdev && (ipr_is_vset_device(res) || ipr_is_scsi_disk(res))) |
6885 | res->sdev->allow_restart = 1; | |
1da177e4 LT |
6886 | |
6887 | if (found) | |
3e7ebdfa | 6888 | ipr_update_res_entry(res, &cfgtew); |
1da177e4 LT |
6889 | } |
6890 | ||
6891 | list_for_each_entry_safe(res, temp, &old_res, queue) { | |
6892 | if (res->sdev) { | |
6893 | res->del_from_ml = 1; | |
3e7ebdfa | 6894 | res->res_handle = IPR_INVALID_RES_HANDLE; |
1da177e4 | 6895 | list_move_tail(&res->queue, &ioa_cfg->used_res_q); |
1da177e4 LT |
6896 | } |
6897 | } | |
6898 | ||
3e7ebdfa WB |
6899 | list_for_each_entry_safe(res, temp, &old_res, queue) { |
6900 | ipr_clear_res_target(res); | |
6901 | list_move_tail(&res->queue, &ioa_cfg->free_res_q); | |
6902 | } | |
6903 | ||
ac09c349 BK |
6904 | if (ioa_cfg->dual_raid && ipr_dual_ioa_raid) |
6905 | ipr_cmd->job_step = ipr_ioafp_mode_sense_page24; | |
6906 | else | |
6907 | ipr_cmd->job_step = ipr_ioafp_mode_sense_page28; | |
1da177e4 LT |
6908 | |
6909 | LEAVE; | |
6910 | return IPR_RC_JOB_CONTINUE; | |
6911 | } | |
6912 | ||
6913 | /** | |
6914 | * ipr_ioafp_query_ioa_cfg - Send a Query IOA Config to the adapter. | |
6915 | * @ipr_cmd: ipr command struct | |
6916 | * | |
6917 | * This function sends a Query IOA Configuration command | |
6918 | * to the adapter to retrieve the IOA configuration table. | |
6919 | * | |
6920 | * Return value: | |
6921 | * IPR_RC_JOB_RETURN | |
6922 | **/ | |
6923 | static int ipr_ioafp_query_ioa_cfg(struct ipr_cmnd *ipr_cmd) | |
6924 | { | |
6925 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; | |
6926 | struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb; | |
1da177e4 | 6927 | struct ipr_inquiry_page3 *ucode_vpd = &ioa_cfg->vpd_cbs->page3_data; |
ac09c349 | 6928 | struct ipr_inquiry_cap *cap = &ioa_cfg->vpd_cbs->cap; |
1da177e4 LT |
6929 | |
6930 | ENTER; | |
ac09c349 BK |
6931 | if (cap->cap & IPR_CAP_DUAL_IOA_RAID) |
6932 | ioa_cfg->dual_raid = 1; | |
1da177e4 LT |
6933 | dev_info(&ioa_cfg->pdev->dev, "Adapter firmware version: %02X%02X%02X%02X\n", |
6934 | ucode_vpd->major_release, ucode_vpd->card_type, | |
6935 | ucode_vpd->minor_release[0], ucode_vpd->minor_release[1]); | |
6936 | ioarcb->cmd_pkt.request_type = IPR_RQTYPE_IOACMD; | |
6937 | ioarcb->res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE); | |
6938 | ||
6939 | ioarcb->cmd_pkt.cdb[0] = IPR_QUERY_IOA_CONFIG; | |
438b0331 | 6940 | ioarcb->cmd_pkt.cdb[6] = (ioa_cfg->cfg_table_size >> 16) & 0xff; |
3e7ebdfa WB |
6941 | ioarcb->cmd_pkt.cdb[7] = (ioa_cfg->cfg_table_size >> 8) & 0xff; |
6942 | ioarcb->cmd_pkt.cdb[8] = ioa_cfg->cfg_table_size & 0xff; | |
1da177e4 | 6943 | |
3e7ebdfa | 6944 | ipr_init_ioadl(ipr_cmd, ioa_cfg->cfg_table_dma, ioa_cfg->cfg_table_size, |
a32c055f | 6945 | IPR_IOADL_FLAGS_READ_LAST); |
1da177e4 LT |
6946 | |
6947 | ipr_cmd->job_step = ipr_init_res_table; | |
6948 | ||
6949 | ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT); | |
6950 | ||
6951 | LEAVE; | |
6952 | return IPR_RC_JOB_RETURN; | |
6953 | } | |
6954 | ||
6955 | /** | |
6956 | * ipr_ioafp_inquiry - Send an Inquiry to the adapter. | |
6957 | * @ipr_cmd: ipr command struct | |
6958 | * | |
6959 | * This utility function sends an inquiry to the adapter. | |
6960 | * | |
6961 | * Return value: | |
6962 | * none | |
6963 | **/ | |
6964 | static void ipr_ioafp_inquiry(struct ipr_cmnd *ipr_cmd, u8 flags, u8 page, | |
a32c055f | 6965 | dma_addr_t dma_addr, u8 xfer_len) |
1da177e4 LT |
6966 | { |
6967 | struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb; | |
1da177e4 LT |
6968 | |
6969 | ENTER; | |
6970 | ioarcb->cmd_pkt.request_type = IPR_RQTYPE_SCSICDB; | |
6971 | ioarcb->res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE); | |
6972 | ||
6973 | ioarcb->cmd_pkt.cdb[0] = INQUIRY; | |
6974 | ioarcb->cmd_pkt.cdb[1] = flags; | |
6975 | ioarcb->cmd_pkt.cdb[2] = page; | |
6976 | ioarcb->cmd_pkt.cdb[4] = xfer_len; | |
6977 | ||
a32c055f | 6978 | ipr_init_ioadl(ipr_cmd, dma_addr, xfer_len, IPR_IOADL_FLAGS_READ_LAST); |
1da177e4 LT |
6979 | |
6980 | ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT); | |
6981 | LEAVE; | |
6982 | } | |
6983 | ||
62275040 | 6984 | /** |
6985 | * ipr_inquiry_page_supported - Is the given inquiry page supported | |
6986 | * @page0: inquiry page 0 buffer | |
6987 | * @page: page code. | |
6988 | * | |
6989 | * This function determines if the specified inquiry page is supported. | |
6990 | * | |
6991 | * Return value: | |
6992 | * 1 if page is supported / 0 if not | |
6993 | **/ | |
6994 | static int ipr_inquiry_page_supported(struct ipr_inquiry_page0 *page0, u8 page) | |
6995 | { | |
6996 | int i; | |
6997 | ||
6998 | for (i = 0; i < min_t(u8, page0->len, IPR_INQUIRY_PAGE0_ENTRIES); i++) | |
6999 | if (page0->page[i] == page) | |
7000 | return 1; | |
7001 | ||
7002 | return 0; | |
7003 | } | |
7004 | ||
ac09c349 BK |
7005 | /** |
7006 | * ipr_ioafp_cap_inquiry - Send a Page 0xD0 Inquiry to the adapter. | |
7007 | * @ipr_cmd: ipr command struct | |
7008 | * | |
7009 | * This function sends a Page 0xD0 inquiry to the adapter | |
7010 | * to retrieve adapter capabilities. | |
7011 | * | |
7012 | * Return value: | |
7013 | * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN | |
7014 | **/ | |
7015 | static int ipr_ioafp_cap_inquiry(struct ipr_cmnd *ipr_cmd) | |
7016 | { | |
7017 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; | |
7018 | struct ipr_inquiry_page0 *page0 = &ioa_cfg->vpd_cbs->page0_data; | |
7019 | struct ipr_inquiry_cap *cap = &ioa_cfg->vpd_cbs->cap; | |
7020 | ||
7021 | ENTER; | |
7022 | ipr_cmd->job_step = ipr_ioafp_query_ioa_cfg; | |
7023 | memset(cap, 0, sizeof(*cap)); | |
7024 | ||
7025 | if (ipr_inquiry_page_supported(page0, 0xD0)) { | |
7026 | ipr_ioafp_inquiry(ipr_cmd, 1, 0xD0, | |
7027 | ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, cap), | |
7028 | sizeof(struct ipr_inquiry_cap)); | |
7029 | return IPR_RC_JOB_RETURN; | |
7030 | } | |
7031 | ||
7032 | LEAVE; | |
7033 | return IPR_RC_JOB_CONTINUE; | |
7034 | } | |
7035 | ||
1da177e4 LT |
7036 | /** |
7037 | * ipr_ioafp_page3_inquiry - Send a Page 3 Inquiry to the adapter. | |
7038 | * @ipr_cmd: ipr command struct | |
7039 | * | |
7040 | * This function sends a Page 3 inquiry to the adapter | |
7041 | * to retrieve software VPD information. | |
7042 | * | |
7043 | * Return value: | |
7044 | * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN | |
7045 | **/ | |
7046 | static int ipr_ioafp_page3_inquiry(struct ipr_cmnd *ipr_cmd) | |
62275040 | 7047 | { |
7048 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; | |
62275040 | 7049 | |
7050 | ENTER; | |
7051 | ||
ac09c349 | 7052 | ipr_cmd->job_step = ipr_ioafp_cap_inquiry; |
62275040 | 7053 | |
7054 | ipr_ioafp_inquiry(ipr_cmd, 1, 3, | |
7055 | ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, page3_data), | |
7056 | sizeof(struct ipr_inquiry_page3)); | |
7057 | ||
7058 | LEAVE; | |
7059 | return IPR_RC_JOB_RETURN; | |
7060 | } | |
7061 | ||
7062 | /** | |
7063 | * ipr_ioafp_page0_inquiry - Send a Page 0 Inquiry to the adapter. | |
7064 | * @ipr_cmd: ipr command struct | |
7065 | * | |
7066 | * This function sends a Page 0 inquiry to the adapter | |
7067 | * to retrieve supported inquiry pages. | |
7068 | * | |
7069 | * Return value: | |
7070 | * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN | |
7071 | **/ | |
7072 | static int ipr_ioafp_page0_inquiry(struct ipr_cmnd *ipr_cmd) | |
1da177e4 LT |
7073 | { |
7074 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; | |
7075 | char type[5]; | |
7076 | ||
7077 | ENTER; | |
7078 | ||
7079 | /* Grab the type out of the VPD and store it away */ | |
7080 | memcpy(type, ioa_cfg->vpd_cbs->ioa_vpd.std_inq_data.vpids.product_id, 4); | |
7081 | type[4] = '\0'; | |
7082 | ioa_cfg->type = simple_strtoul((char *)type, NULL, 16); | |
7083 | ||
62275040 | 7084 | ipr_cmd->job_step = ipr_ioafp_page3_inquiry; |
1da177e4 | 7085 | |
62275040 | 7086 | ipr_ioafp_inquiry(ipr_cmd, 1, 0, |
7087 | ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, page0_data), | |
7088 | sizeof(struct ipr_inquiry_page0)); | |
1da177e4 LT |
7089 | |
7090 | LEAVE; | |
7091 | return IPR_RC_JOB_RETURN; | |
7092 | } | |
7093 | ||
7094 | /** | |
7095 | * ipr_ioafp_std_inquiry - Send a Standard Inquiry to the adapter. | |
7096 | * @ipr_cmd: ipr command struct | |
7097 | * | |
7098 | * This function sends a standard inquiry to the adapter. | |
7099 | * | |
7100 | * Return value: | |
7101 | * IPR_RC_JOB_RETURN | |
7102 | **/ | |
7103 | static int ipr_ioafp_std_inquiry(struct ipr_cmnd *ipr_cmd) | |
7104 | { | |
7105 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; | |
7106 | ||
7107 | ENTER; | |
62275040 | 7108 | ipr_cmd->job_step = ipr_ioafp_page0_inquiry; |
1da177e4 LT |
7109 | |
7110 | ipr_ioafp_inquiry(ipr_cmd, 0, 0, | |
7111 | ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, ioa_vpd), | |
7112 | sizeof(struct ipr_ioa_vpd)); | |
7113 | ||
7114 | LEAVE; | |
7115 | return IPR_RC_JOB_RETURN; | |
7116 | } | |
7117 | ||
7118 | /** | |
214777ba | 7119 | * ipr_ioafp_identify_hrrq - Send Identify Host RRQ. |
1da177e4 LT |
7120 | * @ipr_cmd: ipr command struct |
7121 | * | |
7122 | * This function send an Identify Host Request Response Queue | |
7123 | * command to establish the HRRQ with the adapter. | |
7124 | * | |
7125 | * Return value: | |
7126 | * IPR_RC_JOB_RETURN | |
7127 | **/ | |
214777ba | 7128 | static int ipr_ioafp_identify_hrrq(struct ipr_cmnd *ipr_cmd) |
1da177e4 LT |
7129 | { |
7130 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; | |
7131 | struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb; | |
7132 | ||
7133 | ENTER; | |
7134 | dev_info(&ioa_cfg->pdev->dev, "Starting IOA initialization sequence.\n"); | |
7135 | ||
7136 | ioarcb->cmd_pkt.cdb[0] = IPR_ID_HOST_RR_Q; | |
7137 | ioarcb->res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE); | |
7138 | ||
7139 | ioarcb->cmd_pkt.request_type = IPR_RQTYPE_IOACMD; | |
214777ba WB |
7140 | if (ioa_cfg->sis64) |
7141 | ioarcb->cmd_pkt.cdb[1] = 0x1; | |
1da177e4 | 7142 | ioarcb->cmd_pkt.cdb[2] = |
214777ba | 7143 | ((u64) ioa_cfg->host_rrq_dma >> 24) & 0xff; |
1da177e4 | 7144 | ioarcb->cmd_pkt.cdb[3] = |
214777ba | 7145 | ((u64) ioa_cfg->host_rrq_dma >> 16) & 0xff; |
1da177e4 | 7146 | ioarcb->cmd_pkt.cdb[4] = |
214777ba | 7147 | ((u64) ioa_cfg->host_rrq_dma >> 8) & 0xff; |
1da177e4 | 7148 | ioarcb->cmd_pkt.cdb[5] = |
214777ba | 7149 | ((u64) ioa_cfg->host_rrq_dma) & 0xff; |
1da177e4 LT |
7150 | ioarcb->cmd_pkt.cdb[7] = |
7151 | ((sizeof(u32) * IPR_NUM_CMD_BLKS) >> 8) & 0xff; | |
7152 | ioarcb->cmd_pkt.cdb[8] = | |
7153 | (sizeof(u32) * IPR_NUM_CMD_BLKS) & 0xff; | |
7154 | ||
214777ba WB |
7155 | if (ioa_cfg->sis64) { |
7156 | ioarcb->cmd_pkt.cdb[10] = | |
7157 | ((u64) ioa_cfg->host_rrq_dma >> 56) & 0xff; | |
7158 | ioarcb->cmd_pkt.cdb[11] = | |
7159 | ((u64) ioa_cfg->host_rrq_dma >> 48) & 0xff; | |
7160 | ioarcb->cmd_pkt.cdb[12] = | |
7161 | ((u64) ioa_cfg->host_rrq_dma >> 40) & 0xff; | |
7162 | ioarcb->cmd_pkt.cdb[13] = | |
7163 | ((u64) ioa_cfg->host_rrq_dma >> 32) & 0xff; | |
7164 | } | |
7165 | ||
1da177e4 LT |
7166 | ipr_cmd->job_step = ipr_ioafp_std_inquiry; |
7167 | ||
7168 | ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, IPR_INTERNAL_TIMEOUT); | |
7169 | ||
7170 | LEAVE; | |
7171 | return IPR_RC_JOB_RETURN; | |
7172 | } | |
7173 | ||
7174 | /** | |
7175 | * ipr_reset_timer_done - Adapter reset timer function | |
7176 | * @ipr_cmd: ipr command struct | |
7177 | * | |
7178 | * Description: This function is used in adapter reset processing | |
7179 | * for timing events. If the reset_cmd pointer in the IOA | |
7180 | * config struct is not this adapter's we are doing nested | |
7181 | * resets and fail_all_ops will take care of freeing the | |
7182 | * command block. | |
7183 | * | |
7184 | * Return value: | |
7185 | * none | |
7186 | **/ | |
7187 | static void ipr_reset_timer_done(struct ipr_cmnd *ipr_cmd) | |
7188 | { | |
7189 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; | |
7190 | unsigned long lock_flags = 0; | |
7191 | ||
7192 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); | |
7193 | ||
7194 | if (ioa_cfg->reset_cmd == ipr_cmd) { | |
7195 | list_del(&ipr_cmd->queue); | |
7196 | ipr_cmd->done(ipr_cmd); | |
7197 | } | |
7198 | ||
7199 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
7200 | } | |
7201 | ||
7202 | /** | |
7203 | * ipr_reset_start_timer - Start a timer for adapter reset job | |
7204 | * @ipr_cmd: ipr command struct | |
7205 | * @timeout: timeout value | |
7206 | * | |
7207 | * Description: This function is used in adapter reset processing | |
7208 | * for timing events. If the reset_cmd pointer in the IOA | |
7209 | * config struct is not this adapter's we are doing nested | |
7210 | * resets and fail_all_ops will take care of freeing the | |
7211 | * command block. | |
7212 | * | |
7213 | * Return value: | |
7214 | * none | |
7215 | **/ | |
7216 | static void ipr_reset_start_timer(struct ipr_cmnd *ipr_cmd, | |
7217 | unsigned long timeout) | |
7218 | { | |
7219 | list_add_tail(&ipr_cmd->queue, &ipr_cmd->ioa_cfg->pending_q); | |
7220 | ipr_cmd->done = ipr_reset_ioa_job; | |
7221 | ||
7222 | ipr_cmd->timer.data = (unsigned long) ipr_cmd; | |
7223 | ipr_cmd->timer.expires = jiffies + timeout; | |
7224 | ipr_cmd->timer.function = (void (*)(unsigned long))ipr_reset_timer_done; | |
7225 | add_timer(&ipr_cmd->timer); | |
7226 | } | |
7227 | ||
7228 | /** | |
7229 | * ipr_init_ioa_mem - Initialize ioa_cfg control block | |
7230 | * @ioa_cfg: ioa cfg struct | |
7231 | * | |
7232 | * Return value: | |
7233 | * nothing | |
7234 | **/ | |
7235 | static void ipr_init_ioa_mem(struct ipr_ioa_cfg *ioa_cfg) | |
7236 | { | |
7237 | memset(ioa_cfg->host_rrq, 0, sizeof(u32) * IPR_NUM_CMD_BLKS); | |
7238 | ||
7239 | /* Initialize Host RRQ pointers */ | |
7240 | ioa_cfg->hrrq_start = ioa_cfg->host_rrq; | |
7241 | ioa_cfg->hrrq_end = &ioa_cfg->host_rrq[IPR_NUM_CMD_BLKS - 1]; | |
7242 | ioa_cfg->hrrq_curr = ioa_cfg->hrrq_start; | |
7243 | ioa_cfg->toggle_bit = 1; | |
7244 | ||
7245 | /* Zero out config table */ | |
3e7ebdfa | 7246 | memset(ioa_cfg->u.cfg_table, 0, ioa_cfg->cfg_table_size); |
1da177e4 LT |
7247 | } |
7248 | ||
214777ba WB |
7249 | /** |
7250 | * ipr_reset_next_stage - Process IPL stage change based on feedback register. | |
7251 | * @ipr_cmd: ipr command struct | |
7252 | * | |
7253 | * Return value: | |
7254 | * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN | |
7255 | **/ | |
7256 | static int ipr_reset_next_stage(struct ipr_cmnd *ipr_cmd) | |
7257 | { | |
7258 | unsigned long stage, stage_time; | |
7259 | u32 feedback; | |
7260 | volatile u32 int_reg; | |
7261 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; | |
7262 | u64 maskval = 0; | |
7263 | ||
7264 | feedback = readl(ioa_cfg->regs.init_feedback_reg); | |
7265 | stage = feedback & IPR_IPL_INIT_STAGE_MASK; | |
7266 | stage_time = feedback & IPR_IPL_INIT_STAGE_TIME_MASK; | |
7267 | ||
7268 | ipr_dbg("IPL stage = 0x%lx, IPL stage time = %ld\n", stage, stage_time); | |
7269 | ||
7270 | /* sanity check the stage_time value */ | |
438b0331 WB |
7271 | if (stage_time == 0) |
7272 | stage_time = IPR_IPL_INIT_DEFAULT_STAGE_TIME; | |
7273 | else if (stage_time < IPR_IPL_INIT_MIN_STAGE_TIME) | |
214777ba WB |
7274 | stage_time = IPR_IPL_INIT_MIN_STAGE_TIME; |
7275 | else if (stage_time > IPR_LONG_OPERATIONAL_TIMEOUT) | |
7276 | stage_time = IPR_LONG_OPERATIONAL_TIMEOUT; | |
7277 | ||
7278 | if (stage == IPR_IPL_INIT_STAGE_UNKNOWN) { | |
7279 | writel(IPR_PCII_IPL_STAGE_CHANGE, ioa_cfg->regs.set_interrupt_mask_reg); | |
7280 | int_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg); | |
7281 | stage_time = ioa_cfg->transop_timeout; | |
7282 | ipr_cmd->job_step = ipr_ioafp_identify_hrrq; | |
7283 | } else if (stage == IPR_IPL_INIT_STAGE_TRANSOP) { | |
1df79ca4 WB |
7284 | int_reg = readl(ioa_cfg->regs.sense_interrupt_reg32); |
7285 | if (int_reg & IPR_PCII_IOA_TRANS_TO_OPER) { | |
7286 | ipr_cmd->job_step = ipr_ioafp_identify_hrrq; | |
7287 | maskval = IPR_PCII_IPL_STAGE_CHANGE; | |
7288 | maskval = (maskval << 32) | IPR_PCII_IOA_TRANS_TO_OPER; | |
7289 | writeq(maskval, ioa_cfg->regs.set_interrupt_mask_reg); | |
7290 | int_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg); | |
7291 | return IPR_RC_JOB_CONTINUE; | |
7292 | } | |
214777ba WB |
7293 | } |
7294 | ||
7295 | ipr_cmd->timer.data = (unsigned long) ipr_cmd; | |
7296 | ipr_cmd->timer.expires = jiffies + stage_time * HZ; | |
7297 | ipr_cmd->timer.function = (void (*)(unsigned long))ipr_oper_timeout; | |
7298 | ipr_cmd->done = ipr_reset_ioa_job; | |
7299 | add_timer(&ipr_cmd->timer); | |
7300 | list_add_tail(&ipr_cmd->queue, &ioa_cfg->pending_q); | |
7301 | ||
7302 | return IPR_RC_JOB_RETURN; | |
7303 | } | |
7304 | ||
1da177e4 LT |
7305 | /** |
7306 | * ipr_reset_enable_ioa - Enable the IOA following a reset. | |
7307 | * @ipr_cmd: ipr command struct | |
7308 | * | |
7309 | * This function reinitializes some control blocks and | |
7310 | * enables destructive diagnostics on the adapter. | |
7311 | * | |
7312 | * Return value: | |
7313 | * IPR_RC_JOB_RETURN | |
7314 | **/ | |
7315 | static int ipr_reset_enable_ioa(struct ipr_cmnd *ipr_cmd) | |
7316 | { | |
7317 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; | |
7318 | volatile u32 int_reg; | |
7be96900 | 7319 | volatile u64 maskval; |
1da177e4 LT |
7320 | |
7321 | ENTER; | |
214777ba | 7322 | ipr_cmd->job_step = ipr_ioafp_identify_hrrq; |
1da177e4 LT |
7323 | ipr_init_ioa_mem(ioa_cfg); |
7324 | ||
7325 | ioa_cfg->allow_interrupts = 1; | |
8701f185 WB |
7326 | if (ioa_cfg->sis64) { |
7327 | /* Set the adapter to the correct endian mode. */ | |
7328 | writel(IPR_ENDIAN_SWAP_KEY, ioa_cfg->regs.endian_swap_reg); | |
7329 | int_reg = readl(ioa_cfg->regs.endian_swap_reg); | |
7330 | } | |
7331 | ||
7be96900 | 7332 | int_reg = readl(ioa_cfg->regs.sense_interrupt_reg32); |
1da177e4 LT |
7333 | |
7334 | if (int_reg & IPR_PCII_IOA_TRANS_TO_OPER) { | |
7335 | writel((IPR_PCII_ERROR_INTERRUPTS | IPR_PCII_HRRQ_UPDATED), | |
214777ba | 7336 | ioa_cfg->regs.clr_interrupt_mask_reg32); |
1da177e4 LT |
7337 | int_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg); |
7338 | return IPR_RC_JOB_CONTINUE; | |
7339 | } | |
7340 | ||
7341 | /* Enable destructive diagnostics on IOA */ | |
214777ba WB |
7342 | writel(ioa_cfg->doorbell, ioa_cfg->regs.set_uproc_interrupt_reg32); |
7343 | ||
7be96900 WB |
7344 | if (ioa_cfg->sis64) { |
7345 | maskval = IPR_PCII_IPL_STAGE_CHANGE; | |
7346 | maskval = (maskval << 32) | IPR_PCII_OPER_INTERRUPTS; | |
7347 | writeq(maskval, ioa_cfg->regs.clr_interrupt_mask_reg); | |
7348 | } else | |
7349 | writel(IPR_PCII_OPER_INTERRUPTS, ioa_cfg->regs.clr_interrupt_mask_reg32); | |
1da177e4 | 7350 | |
1da177e4 LT |
7351 | int_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg); |
7352 | ||
7353 | dev_info(&ioa_cfg->pdev->dev, "Initializing IOA.\n"); | |
7354 | ||
214777ba WB |
7355 | if (ioa_cfg->sis64) { |
7356 | ipr_cmd->job_step = ipr_reset_next_stage; | |
7357 | return IPR_RC_JOB_CONTINUE; | |
7358 | } | |
7359 | ||
1da177e4 | 7360 | ipr_cmd->timer.data = (unsigned long) ipr_cmd; |
5469cb5b | 7361 | ipr_cmd->timer.expires = jiffies + (ioa_cfg->transop_timeout * HZ); |
1da177e4 LT |
7362 | ipr_cmd->timer.function = (void (*)(unsigned long))ipr_oper_timeout; |
7363 | ipr_cmd->done = ipr_reset_ioa_job; | |
7364 | add_timer(&ipr_cmd->timer); | |
7365 | list_add_tail(&ipr_cmd->queue, &ioa_cfg->pending_q); | |
7366 | ||
7367 | LEAVE; | |
7368 | return IPR_RC_JOB_RETURN; | |
7369 | } | |
7370 | ||
7371 | /** | |
7372 | * ipr_reset_wait_for_dump - Wait for a dump to timeout. | |
7373 | * @ipr_cmd: ipr command struct | |
7374 | * | |
7375 | * This function is invoked when an adapter dump has run out | |
7376 | * of processing time. | |
7377 | * | |
7378 | * Return value: | |
7379 | * IPR_RC_JOB_CONTINUE | |
7380 | **/ | |
7381 | static int ipr_reset_wait_for_dump(struct ipr_cmnd *ipr_cmd) | |
7382 | { | |
7383 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; | |
7384 | ||
7385 | if (ioa_cfg->sdt_state == GET_DUMP) | |
7386 | ioa_cfg->sdt_state = ABORT_DUMP; | |
7387 | ||
7388 | ipr_cmd->job_step = ipr_reset_alert; | |
7389 | ||
7390 | return IPR_RC_JOB_CONTINUE; | |
7391 | } | |
7392 | ||
7393 | /** | |
7394 | * ipr_unit_check_no_data - Log a unit check/no data error log | |
7395 | * @ioa_cfg: ioa config struct | |
7396 | * | |
7397 | * Logs an error indicating the adapter unit checked, but for some | |
7398 | * reason, we were unable to fetch the unit check buffer. | |
7399 | * | |
7400 | * Return value: | |
7401 | * nothing | |
7402 | **/ | |
7403 | static void ipr_unit_check_no_data(struct ipr_ioa_cfg *ioa_cfg) | |
7404 | { | |
7405 | ioa_cfg->errors_logged++; | |
7406 | dev_err(&ioa_cfg->pdev->dev, "IOA unit check with no data\n"); | |
7407 | } | |
7408 | ||
7409 | /** | |
7410 | * ipr_get_unit_check_buffer - Get the unit check buffer from the IOA | |
7411 | * @ioa_cfg: ioa config struct | |
7412 | * | |
7413 | * Fetches the unit check buffer from the adapter by clocking the data | |
7414 | * through the mailbox register. | |
7415 | * | |
7416 | * Return value: | |
7417 | * nothing | |
7418 | **/ | |
7419 | static void ipr_get_unit_check_buffer(struct ipr_ioa_cfg *ioa_cfg) | |
7420 | { | |
7421 | unsigned long mailbox; | |
7422 | struct ipr_hostrcb *hostrcb; | |
7423 | struct ipr_uc_sdt sdt; | |
7424 | int rc, length; | |
65f56475 | 7425 | u32 ioasc; |
1da177e4 LT |
7426 | |
7427 | mailbox = readl(ioa_cfg->ioa_mailbox); | |
7428 | ||
dcbad00e | 7429 | if (!ioa_cfg->sis64 && !ipr_sdt_is_fmt2(mailbox)) { |
1da177e4 LT |
7430 | ipr_unit_check_no_data(ioa_cfg); |
7431 | return; | |
7432 | } | |
7433 | ||
7434 | memset(&sdt, 0, sizeof(struct ipr_uc_sdt)); | |
7435 | rc = ipr_get_ldump_data_section(ioa_cfg, mailbox, (__be32 *) &sdt, | |
7436 | (sizeof(struct ipr_uc_sdt)) / sizeof(__be32)); | |
7437 | ||
dcbad00e WB |
7438 | if (rc || !(sdt.entry[0].flags & IPR_SDT_VALID_ENTRY) || |
7439 | ((be32_to_cpu(sdt.hdr.state) != IPR_FMT3_SDT_READY_TO_USE) && | |
7440 | (be32_to_cpu(sdt.hdr.state) != IPR_FMT2_SDT_READY_TO_USE))) { | |
1da177e4 LT |
7441 | ipr_unit_check_no_data(ioa_cfg); |
7442 | return; | |
7443 | } | |
7444 | ||
7445 | /* Find length of the first sdt entry (UC buffer) */ | |
dcbad00e WB |
7446 | if (be32_to_cpu(sdt.hdr.state) == IPR_FMT3_SDT_READY_TO_USE) |
7447 | length = be32_to_cpu(sdt.entry[0].end_token); | |
7448 | else | |
7449 | length = (be32_to_cpu(sdt.entry[0].end_token) - | |
7450 | be32_to_cpu(sdt.entry[0].start_token)) & | |
7451 | IPR_FMT2_MBX_ADDR_MASK; | |
1da177e4 LT |
7452 | |
7453 | hostrcb = list_entry(ioa_cfg->hostrcb_free_q.next, | |
7454 | struct ipr_hostrcb, queue); | |
7455 | list_del(&hostrcb->queue); | |
7456 | memset(&hostrcb->hcam, 0, sizeof(hostrcb->hcam)); | |
7457 | ||
7458 | rc = ipr_get_ldump_data_section(ioa_cfg, | |
dcbad00e | 7459 | be32_to_cpu(sdt.entry[0].start_token), |
1da177e4 LT |
7460 | (__be32 *)&hostrcb->hcam, |
7461 | min(length, (int)sizeof(hostrcb->hcam)) / sizeof(__be32)); | |
7462 | ||
65f56475 | 7463 | if (!rc) { |
1da177e4 | 7464 | ipr_handle_log_data(ioa_cfg, hostrcb); |
4565e370 | 7465 | ioasc = be32_to_cpu(hostrcb->hcam.u.error.fd_ioasc); |
65f56475 BK |
7466 | if (ioasc == IPR_IOASC_NR_IOA_RESET_REQUIRED && |
7467 | ioa_cfg->sdt_state == GET_DUMP) | |
7468 | ioa_cfg->sdt_state = WAIT_FOR_DUMP; | |
7469 | } else | |
1da177e4 LT |
7470 | ipr_unit_check_no_data(ioa_cfg); |
7471 | ||
7472 | list_add_tail(&hostrcb->queue, &ioa_cfg->hostrcb_free_q); | |
7473 | } | |
7474 | ||
7475 | /** | |
7476 | * ipr_reset_restore_cfg_space - Restore PCI config space. | |
7477 | * @ipr_cmd: ipr command struct | |
7478 | * | |
7479 | * Description: This function restores the saved PCI config space of | |
7480 | * the adapter, fails all outstanding ops back to the callers, and | |
7481 | * fetches the dump/unit check if applicable to this reset. | |
7482 | * | |
7483 | * Return value: | |
7484 | * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN | |
7485 | **/ | |
7486 | static int ipr_reset_restore_cfg_space(struct ipr_cmnd *ipr_cmd) | |
7487 | { | |
7488 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; | |
8701f185 | 7489 | volatile u32 int_reg; |
1da177e4 LT |
7490 | int rc; |
7491 | ||
7492 | ENTER; | |
99c965dd | 7493 | ioa_cfg->pdev->state_saved = true; |
1da177e4 LT |
7494 | rc = pci_restore_state(ioa_cfg->pdev); |
7495 | ||
7496 | if (rc != PCIBIOS_SUCCESSFUL) { | |
96d21f00 | 7497 | ipr_cmd->s.ioasa.hdr.ioasc = cpu_to_be32(IPR_IOASC_PCI_ACCESS_ERROR); |
1da177e4 LT |
7498 | return IPR_RC_JOB_CONTINUE; |
7499 | } | |
7500 | ||
7501 | if (ipr_set_pcix_cmd_reg(ioa_cfg)) { | |
96d21f00 | 7502 | ipr_cmd->s.ioasa.hdr.ioasc = cpu_to_be32(IPR_IOASC_PCI_ACCESS_ERROR); |
1da177e4 LT |
7503 | return IPR_RC_JOB_CONTINUE; |
7504 | } | |
7505 | ||
7506 | ipr_fail_all_ops(ioa_cfg); | |
7507 | ||
8701f185 WB |
7508 | if (ioa_cfg->sis64) { |
7509 | /* Set the adapter to the correct endian mode. */ | |
7510 | writel(IPR_ENDIAN_SWAP_KEY, ioa_cfg->regs.endian_swap_reg); | |
7511 | int_reg = readl(ioa_cfg->regs.endian_swap_reg); | |
7512 | } | |
7513 | ||
1da177e4 LT |
7514 | if (ioa_cfg->ioa_unit_checked) { |
7515 | ioa_cfg->ioa_unit_checked = 0; | |
7516 | ipr_get_unit_check_buffer(ioa_cfg); | |
7517 | ipr_cmd->job_step = ipr_reset_alert; | |
7518 | ipr_reset_start_timer(ipr_cmd, 0); | |
7519 | return IPR_RC_JOB_RETURN; | |
7520 | } | |
7521 | ||
7522 | if (ioa_cfg->in_ioa_bringdown) { | |
7523 | ipr_cmd->job_step = ipr_ioa_bringdown_done; | |
7524 | } else { | |
7525 | ipr_cmd->job_step = ipr_reset_enable_ioa; | |
7526 | ||
7527 | if (GET_DUMP == ioa_cfg->sdt_state) { | |
7528 | ipr_reset_start_timer(ipr_cmd, IPR_DUMP_TIMEOUT); | |
7529 | ipr_cmd->job_step = ipr_reset_wait_for_dump; | |
7530 | schedule_work(&ioa_cfg->work_q); | |
7531 | return IPR_RC_JOB_RETURN; | |
7532 | } | |
7533 | } | |
7534 | ||
438b0331 | 7535 | LEAVE; |
1da177e4 LT |
7536 | return IPR_RC_JOB_CONTINUE; |
7537 | } | |
7538 | ||
e619e1a7 BK |
7539 | /** |
7540 | * ipr_reset_bist_done - BIST has completed on the adapter. | |
7541 | * @ipr_cmd: ipr command struct | |
7542 | * | |
7543 | * Description: Unblock config space and resume the reset process. | |
7544 | * | |
7545 | * Return value: | |
7546 | * IPR_RC_JOB_CONTINUE | |
7547 | **/ | |
7548 | static int ipr_reset_bist_done(struct ipr_cmnd *ipr_cmd) | |
7549 | { | |
7550 | ENTER; | |
7551 | pci_unblock_user_cfg_access(ipr_cmd->ioa_cfg->pdev); | |
7552 | ipr_cmd->job_step = ipr_reset_restore_cfg_space; | |
7553 | LEAVE; | |
7554 | return IPR_RC_JOB_CONTINUE; | |
7555 | } | |
7556 | ||
1da177e4 LT |
7557 | /** |
7558 | * ipr_reset_start_bist - Run BIST on the adapter. | |
7559 | * @ipr_cmd: ipr command struct | |
7560 | * | |
7561 | * Description: This function runs BIST on the adapter, then delays 2 seconds. | |
7562 | * | |
7563 | * Return value: | |
7564 | * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN | |
7565 | **/ | |
7566 | static int ipr_reset_start_bist(struct ipr_cmnd *ipr_cmd) | |
7567 | { | |
7568 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; | |
cb237ef7 | 7569 | int rc = PCIBIOS_SUCCESSFUL; |
1da177e4 LT |
7570 | |
7571 | ENTER; | |
b30197d2 | 7572 | pci_block_user_cfg_access(ioa_cfg->pdev); |
1da177e4 | 7573 | |
cb237ef7 WB |
7574 | if (ioa_cfg->ipr_chip->bist_method == IPR_MMIO) |
7575 | writel(IPR_UPROCI_SIS64_START_BIST, | |
7576 | ioa_cfg->regs.set_uproc_interrupt_reg32); | |
7577 | else | |
7578 | rc = pci_write_config_byte(ioa_cfg->pdev, PCI_BIST, PCI_BIST_START); | |
7579 | ||
7580 | if (rc == PCIBIOS_SUCCESSFUL) { | |
e619e1a7 | 7581 | ipr_cmd->job_step = ipr_reset_bist_done; |
1da177e4 LT |
7582 | ipr_reset_start_timer(ipr_cmd, IPR_WAIT_FOR_BIST_TIMEOUT); |
7583 | rc = IPR_RC_JOB_RETURN; | |
cb237ef7 WB |
7584 | } else { |
7585 | pci_unblock_user_cfg_access(ipr_cmd->ioa_cfg->pdev); | |
7586 | ipr_cmd->s.ioasa.hdr.ioasc = cpu_to_be32(IPR_IOASC_PCI_ACCESS_ERROR); | |
7587 | rc = IPR_RC_JOB_CONTINUE; | |
1da177e4 LT |
7588 | } |
7589 | ||
7590 | LEAVE; | |
7591 | return rc; | |
7592 | } | |
7593 | ||
463fc696 BK |
7594 | /** |
7595 | * ipr_reset_slot_reset_done - Clear PCI reset to the adapter | |
7596 | * @ipr_cmd: ipr command struct | |
7597 | * | |
7598 | * Description: This clears PCI reset to the adapter and delays two seconds. | |
7599 | * | |
7600 | * Return value: | |
7601 | * IPR_RC_JOB_RETURN | |
7602 | **/ | |
7603 | static int ipr_reset_slot_reset_done(struct ipr_cmnd *ipr_cmd) | |
7604 | { | |
7605 | ENTER; | |
7606 | pci_set_pcie_reset_state(ipr_cmd->ioa_cfg->pdev, pcie_deassert_reset); | |
7607 | ipr_cmd->job_step = ipr_reset_bist_done; | |
7608 | ipr_reset_start_timer(ipr_cmd, IPR_WAIT_FOR_BIST_TIMEOUT); | |
7609 | LEAVE; | |
7610 | return IPR_RC_JOB_RETURN; | |
7611 | } | |
7612 | ||
7613 | /** | |
7614 | * ipr_reset_slot_reset - Reset the PCI slot of the adapter. | |
7615 | * @ipr_cmd: ipr command struct | |
7616 | * | |
7617 | * Description: This asserts PCI reset to the adapter. | |
7618 | * | |
7619 | * Return value: | |
7620 | * IPR_RC_JOB_RETURN | |
7621 | **/ | |
7622 | static int ipr_reset_slot_reset(struct ipr_cmnd *ipr_cmd) | |
7623 | { | |
7624 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; | |
7625 | struct pci_dev *pdev = ioa_cfg->pdev; | |
7626 | ||
7627 | ENTER; | |
7628 | pci_block_user_cfg_access(pdev); | |
7629 | pci_set_pcie_reset_state(pdev, pcie_warm_reset); | |
7630 | ipr_cmd->job_step = ipr_reset_slot_reset_done; | |
7631 | ipr_reset_start_timer(ipr_cmd, IPR_PCI_RESET_TIMEOUT); | |
7632 | LEAVE; | |
7633 | return IPR_RC_JOB_RETURN; | |
7634 | } | |
7635 | ||
1da177e4 LT |
7636 | /** |
7637 | * ipr_reset_allowed - Query whether or not IOA can be reset | |
7638 | * @ioa_cfg: ioa config struct | |
7639 | * | |
7640 | * Return value: | |
7641 | * 0 if reset not allowed / non-zero if reset is allowed | |
7642 | **/ | |
7643 | static int ipr_reset_allowed(struct ipr_ioa_cfg *ioa_cfg) | |
7644 | { | |
7645 | volatile u32 temp_reg; | |
7646 | ||
7647 | temp_reg = readl(ioa_cfg->regs.sense_interrupt_reg); | |
7648 | return ((temp_reg & IPR_PCII_CRITICAL_OPERATION) == 0); | |
7649 | } | |
7650 | ||
7651 | /** | |
7652 | * ipr_reset_wait_to_start_bist - Wait for permission to reset IOA. | |
7653 | * @ipr_cmd: ipr command struct | |
7654 | * | |
7655 | * Description: This function waits for adapter permission to run BIST, | |
7656 | * then runs BIST. If the adapter does not give permission after a | |
7657 | * reasonable time, we will reset the adapter anyway. The impact of | |
7658 | * resetting the adapter without warning the adapter is the risk of | |
7659 | * losing the persistent error log on the adapter. If the adapter is | |
7660 | * reset while it is writing to the flash on the adapter, the flash | |
7661 | * segment will have bad ECC and be zeroed. | |
7662 | * | |
7663 | * Return value: | |
7664 | * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN | |
7665 | **/ | |
7666 | static int ipr_reset_wait_to_start_bist(struct ipr_cmnd *ipr_cmd) | |
7667 | { | |
7668 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; | |
7669 | int rc = IPR_RC_JOB_RETURN; | |
7670 | ||
7671 | if (!ipr_reset_allowed(ioa_cfg) && ipr_cmd->u.time_left) { | |
7672 | ipr_cmd->u.time_left -= IPR_CHECK_FOR_RESET_TIMEOUT; | |
7673 | ipr_reset_start_timer(ipr_cmd, IPR_CHECK_FOR_RESET_TIMEOUT); | |
7674 | } else { | |
463fc696 | 7675 | ipr_cmd->job_step = ioa_cfg->reset; |
1da177e4 LT |
7676 | rc = IPR_RC_JOB_CONTINUE; |
7677 | } | |
7678 | ||
7679 | return rc; | |
7680 | } | |
7681 | ||
7682 | /** | |
8701f185 | 7683 | * ipr_reset_alert - Alert the adapter of a pending reset |
1da177e4 LT |
7684 | * @ipr_cmd: ipr command struct |
7685 | * | |
7686 | * Description: This function alerts the adapter that it will be reset. | |
7687 | * If memory space is not currently enabled, proceed directly | |
7688 | * to running BIST on the adapter. The timer must always be started | |
7689 | * so we guarantee we do not run BIST from ipr_isr. | |
7690 | * | |
7691 | * Return value: | |
7692 | * IPR_RC_JOB_RETURN | |
7693 | **/ | |
7694 | static int ipr_reset_alert(struct ipr_cmnd *ipr_cmd) | |
7695 | { | |
7696 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; | |
7697 | u16 cmd_reg; | |
7698 | int rc; | |
7699 | ||
7700 | ENTER; | |
7701 | rc = pci_read_config_word(ioa_cfg->pdev, PCI_COMMAND, &cmd_reg); | |
7702 | ||
7703 | if ((rc == PCIBIOS_SUCCESSFUL) && (cmd_reg & PCI_COMMAND_MEMORY)) { | |
7704 | ipr_mask_and_clear_interrupts(ioa_cfg, ~0); | |
214777ba | 7705 | writel(IPR_UPROCI_RESET_ALERT, ioa_cfg->regs.set_uproc_interrupt_reg32); |
1da177e4 LT |
7706 | ipr_cmd->job_step = ipr_reset_wait_to_start_bist; |
7707 | } else { | |
463fc696 | 7708 | ipr_cmd->job_step = ioa_cfg->reset; |
1da177e4 LT |
7709 | } |
7710 | ||
7711 | ipr_cmd->u.time_left = IPR_WAIT_FOR_RESET_TIMEOUT; | |
7712 | ipr_reset_start_timer(ipr_cmd, IPR_CHECK_FOR_RESET_TIMEOUT); | |
7713 | ||
7714 | LEAVE; | |
7715 | return IPR_RC_JOB_RETURN; | |
7716 | } | |
7717 | ||
7718 | /** | |
7719 | * ipr_reset_ucode_download_done - Microcode download completion | |
7720 | * @ipr_cmd: ipr command struct | |
7721 | * | |
7722 | * Description: This function unmaps the microcode download buffer. | |
7723 | * | |
7724 | * Return value: | |
7725 | * IPR_RC_JOB_CONTINUE | |
7726 | **/ | |
7727 | static int ipr_reset_ucode_download_done(struct ipr_cmnd *ipr_cmd) | |
7728 | { | |
7729 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; | |
7730 | struct ipr_sglist *sglist = ioa_cfg->ucode_sglist; | |
7731 | ||
7732 | pci_unmap_sg(ioa_cfg->pdev, sglist->scatterlist, | |
7733 | sglist->num_sg, DMA_TO_DEVICE); | |
7734 | ||
7735 | ipr_cmd->job_step = ipr_reset_alert; | |
7736 | return IPR_RC_JOB_CONTINUE; | |
7737 | } | |
7738 | ||
7739 | /** | |
7740 | * ipr_reset_ucode_download - Download microcode to the adapter | |
7741 | * @ipr_cmd: ipr command struct | |
7742 | * | |
7743 | * Description: This function checks to see if it there is microcode | |
7744 | * to download to the adapter. If there is, a download is performed. | |
7745 | * | |
7746 | * Return value: | |
7747 | * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN | |
7748 | **/ | |
7749 | static int ipr_reset_ucode_download(struct ipr_cmnd *ipr_cmd) | |
7750 | { | |
7751 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; | |
7752 | struct ipr_sglist *sglist = ioa_cfg->ucode_sglist; | |
7753 | ||
7754 | ENTER; | |
7755 | ipr_cmd->job_step = ipr_reset_alert; | |
7756 | ||
7757 | if (!sglist) | |
7758 | return IPR_RC_JOB_CONTINUE; | |
7759 | ||
7760 | ipr_cmd->ioarcb.res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE); | |
7761 | ipr_cmd->ioarcb.cmd_pkt.request_type = IPR_RQTYPE_SCSICDB; | |
7762 | ipr_cmd->ioarcb.cmd_pkt.cdb[0] = WRITE_BUFFER; | |
7763 | ipr_cmd->ioarcb.cmd_pkt.cdb[1] = IPR_WR_BUF_DOWNLOAD_AND_SAVE; | |
7764 | ipr_cmd->ioarcb.cmd_pkt.cdb[6] = (sglist->buffer_len & 0xff0000) >> 16; | |
7765 | ipr_cmd->ioarcb.cmd_pkt.cdb[7] = (sglist->buffer_len & 0x00ff00) >> 8; | |
7766 | ipr_cmd->ioarcb.cmd_pkt.cdb[8] = sglist->buffer_len & 0x0000ff; | |
7767 | ||
a32c055f WB |
7768 | if (ioa_cfg->sis64) |
7769 | ipr_build_ucode_ioadl64(ipr_cmd, sglist); | |
7770 | else | |
7771 | ipr_build_ucode_ioadl(ipr_cmd, sglist); | |
1da177e4 LT |
7772 | ipr_cmd->job_step = ipr_reset_ucode_download_done; |
7773 | ||
7774 | ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, | |
7775 | IPR_WRITE_BUFFER_TIMEOUT); | |
7776 | ||
7777 | LEAVE; | |
7778 | return IPR_RC_JOB_RETURN; | |
7779 | } | |
7780 | ||
7781 | /** | |
7782 | * ipr_reset_shutdown_ioa - Shutdown the adapter | |
7783 | * @ipr_cmd: ipr command struct | |
7784 | * | |
7785 | * Description: This function issues an adapter shutdown of the | |
7786 | * specified type to the specified adapter as part of the | |
7787 | * adapter reset job. | |
7788 | * | |
7789 | * Return value: | |
7790 | * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN | |
7791 | **/ | |
7792 | static int ipr_reset_shutdown_ioa(struct ipr_cmnd *ipr_cmd) | |
7793 | { | |
7794 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; | |
7795 | enum ipr_shutdown_type shutdown_type = ipr_cmd->u.shutdown_type; | |
7796 | unsigned long timeout; | |
7797 | int rc = IPR_RC_JOB_CONTINUE; | |
7798 | ||
7799 | ENTER; | |
7800 | if (shutdown_type != IPR_SHUTDOWN_NONE && !ioa_cfg->ioa_is_dead) { | |
7801 | ipr_cmd->ioarcb.res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE); | |
7802 | ipr_cmd->ioarcb.cmd_pkt.request_type = IPR_RQTYPE_IOACMD; | |
7803 | ipr_cmd->ioarcb.cmd_pkt.cdb[0] = IPR_IOA_SHUTDOWN; | |
7804 | ipr_cmd->ioarcb.cmd_pkt.cdb[1] = shutdown_type; | |
7805 | ||
ac09c349 BK |
7806 | if (shutdown_type == IPR_SHUTDOWN_NORMAL) |
7807 | timeout = IPR_SHUTDOWN_TIMEOUT; | |
1da177e4 LT |
7808 | else if (shutdown_type == IPR_SHUTDOWN_PREPARE_FOR_NORMAL) |
7809 | timeout = IPR_INTERNAL_TIMEOUT; | |
ac09c349 BK |
7810 | else if (ioa_cfg->dual_raid && ipr_dual_ioa_raid) |
7811 | timeout = IPR_DUAL_IOA_ABBR_SHUTDOWN_TO; | |
1da177e4 | 7812 | else |
ac09c349 | 7813 | timeout = IPR_ABBREV_SHUTDOWN_TIMEOUT; |
1da177e4 LT |
7814 | |
7815 | ipr_do_req(ipr_cmd, ipr_reset_ioa_job, ipr_timeout, timeout); | |
7816 | ||
7817 | rc = IPR_RC_JOB_RETURN; | |
7818 | ipr_cmd->job_step = ipr_reset_ucode_download; | |
7819 | } else | |
7820 | ipr_cmd->job_step = ipr_reset_alert; | |
7821 | ||
7822 | LEAVE; | |
7823 | return rc; | |
7824 | } | |
7825 | ||
7826 | /** | |
7827 | * ipr_reset_ioa_job - Adapter reset job | |
7828 | * @ipr_cmd: ipr command struct | |
7829 | * | |
7830 | * Description: This function is the job router for the adapter reset job. | |
7831 | * | |
7832 | * Return value: | |
7833 | * none | |
7834 | **/ | |
7835 | static void ipr_reset_ioa_job(struct ipr_cmnd *ipr_cmd) | |
7836 | { | |
7837 | u32 rc, ioasc; | |
1da177e4 LT |
7838 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; |
7839 | ||
7840 | do { | |
96d21f00 | 7841 | ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc); |
1da177e4 LT |
7842 | |
7843 | if (ioa_cfg->reset_cmd != ipr_cmd) { | |
7844 | /* | |
7845 | * We are doing nested adapter resets and this is | |
7846 | * not the current reset job. | |
7847 | */ | |
7848 | list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q); | |
7849 | return; | |
7850 | } | |
7851 | ||
7852 | if (IPR_IOASC_SENSE_KEY(ioasc)) { | |
dfed823e | 7853 | rc = ipr_cmd->job_step_failed(ipr_cmd); |
7854 | if (rc == IPR_RC_JOB_RETURN) | |
7855 | return; | |
1da177e4 LT |
7856 | } |
7857 | ||
7858 | ipr_reinit_ipr_cmnd(ipr_cmd); | |
dfed823e | 7859 | ipr_cmd->job_step_failed = ipr_reset_cmd_failed; |
1da177e4 LT |
7860 | rc = ipr_cmd->job_step(ipr_cmd); |
7861 | } while(rc == IPR_RC_JOB_CONTINUE); | |
7862 | } | |
7863 | ||
7864 | /** | |
7865 | * _ipr_initiate_ioa_reset - Initiate an adapter reset | |
7866 | * @ioa_cfg: ioa config struct | |
7867 | * @job_step: first job step of reset job | |
7868 | * @shutdown_type: shutdown type | |
7869 | * | |
7870 | * Description: This function will initiate the reset of the given adapter | |
7871 | * starting at the selected job step. | |
7872 | * If the caller needs to wait on the completion of the reset, | |
7873 | * the caller must sleep on the reset_wait_q. | |
7874 | * | |
7875 | * Return value: | |
7876 | * none | |
7877 | **/ | |
7878 | static void _ipr_initiate_ioa_reset(struct ipr_ioa_cfg *ioa_cfg, | |
7879 | int (*job_step) (struct ipr_cmnd *), | |
7880 | enum ipr_shutdown_type shutdown_type) | |
7881 | { | |
7882 | struct ipr_cmnd *ipr_cmd; | |
7883 | ||
7884 | ioa_cfg->in_reset_reload = 1; | |
7885 | ioa_cfg->allow_cmds = 0; | |
7886 | scsi_block_requests(ioa_cfg->host); | |
7887 | ||
7888 | ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg); | |
7889 | ioa_cfg->reset_cmd = ipr_cmd; | |
7890 | ipr_cmd->job_step = job_step; | |
7891 | ipr_cmd->u.shutdown_type = shutdown_type; | |
7892 | ||
7893 | ipr_reset_ioa_job(ipr_cmd); | |
7894 | } | |
7895 | ||
7896 | /** | |
7897 | * ipr_initiate_ioa_reset - Initiate an adapter reset | |
7898 | * @ioa_cfg: ioa config struct | |
7899 | * @shutdown_type: shutdown type | |
7900 | * | |
7901 | * Description: This function will initiate the reset of the given adapter. | |
7902 | * If the caller needs to wait on the completion of the reset, | |
7903 | * the caller must sleep on the reset_wait_q. | |
7904 | * | |
7905 | * Return value: | |
7906 | * none | |
7907 | **/ | |
7908 | static void ipr_initiate_ioa_reset(struct ipr_ioa_cfg *ioa_cfg, | |
7909 | enum ipr_shutdown_type shutdown_type) | |
7910 | { | |
7911 | if (ioa_cfg->ioa_is_dead) | |
7912 | return; | |
7913 | ||
7914 | if (ioa_cfg->in_reset_reload && ioa_cfg->sdt_state == GET_DUMP) | |
7915 | ioa_cfg->sdt_state = ABORT_DUMP; | |
7916 | ||
7917 | if (ioa_cfg->reset_retries++ >= IPR_NUM_RESET_RELOAD_RETRIES) { | |
7918 | dev_err(&ioa_cfg->pdev->dev, | |
7919 | "IOA taken offline - error recovery failed\n"); | |
7920 | ||
7921 | ioa_cfg->reset_retries = 0; | |
7922 | ioa_cfg->ioa_is_dead = 1; | |
7923 | ||
7924 | if (ioa_cfg->in_ioa_bringdown) { | |
7925 | ioa_cfg->reset_cmd = NULL; | |
7926 | ioa_cfg->in_reset_reload = 0; | |
7927 | ipr_fail_all_ops(ioa_cfg); | |
7928 | wake_up_all(&ioa_cfg->reset_wait_q); | |
7929 | ||
7930 | spin_unlock_irq(ioa_cfg->host->host_lock); | |
7931 | scsi_unblock_requests(ioa_cfg->host); | |
7932 | spin_lock_irq(ioa_cfg->host->host_lock); | |
7933 | return; | |
7934 | } else { | |
7935 | ioa_cfg->in_ioa_bringdown = 1; | |
7936 | shutdown_type = IPR_SHUTDOWN_NONE; | |
7937 | } | |
7938 | } | |
7939 | ||
7940 | _ipr_initiate_ioa_reset(ioa_cfg, ipr_reset_shutdown_ioa, | |
7941 | shutdown_type); | |
7942 | } | |
7943 | ||
f8a88b19 LV |
7944 | /** |
7945 | * ipr_reset_freeze - Hold off all I/O activity | |
7946 | * @ipr_cmd: ipr command struct | |
7947 | * | |
7948 | * Description: If the PCI slot is frozen, hold off all I/O | |
7949 | * activity; then, as soon as the slot is available again, | |
7950 | * initiate an adapter reset. | |
7951 | */ | |
7952 | static int ipr_reset_freeze(struct ipr_cmnd *ipr_cmd) | |
7953 | { | |
7954 | /* Disallow new interrupts, avoid loop */ | |
7955 | ipr_cmd->ioa_cfg->allow_interrupts = 0; | |
7956 | list_add_tail(&ipr_cmd->queue, &ipr_cmd->ioa_cfg->pending_q); | |
7957 | ipr_cmd->done = ipr_reset_ioa_job; | |
7958 | return IPR_RC_JOB_RETURN; | |
7959 | } | |
7960 | ||
7961 | /** | |
7962 | * ipr_pci_frozen - Called when slot has experienced a PCI bus error. | |
7963 | * @pdev: PCI device struct | |
7964 | * | |
7965 | * Description: This routine is called to tell us that the PCI bus | |
7966 | * is down. Can't do anything here, except put the device driver | |
7967 | * into a holding pattern, waiting for the PCI bus to come back. | |
7968 | */ | |
7969 | static void ipr_pci_frozen(struct pci_dev *pdev) | |
7970 | { | |
7971 | unsigned long flags = 0; | |
7972 | struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev); | |
7973 | ||
7974 | spin_lock_irqsave(ioa_cfg->host->host_lock, flags); | |
7975 | _ipr_initiate_ioa_reset(ioa_cfg, ipr_reset_freeze, IPR_SHUTDOWN_NONE); | |
7976 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags); | |
7977 | } | |
7978 | ||
7979 | /** | |
7980 | * ipr_pci_slot_reset - Called when PCI slot has been reset. | |
7981 | * @pdev: PCI device struct | |
7982 | * | |
7983 | * Description: This routine is called by the pci error recovery | |
7984 | * code after the PCI slot has been reset, just before we | |
7985 | * should resume normal operations. | |
7986 | */ | |
7987 | static pci_ers_result_t ipr_pci_slot_reset(struct pci_dev *pdev) | |
7988 | { | |
7989 | unsigned long flags = 0; | |
7990 | struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev); | |
7991 | ||
7992 | spin_lock_irqsave(ioa_cfg->host->host_lock, flags); | |
463fc696 BK |
7993 | if (ioa_cfg->needs_warm_reset) |
7994 | ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE); | |
7995 | else | |
7996 | _ipr_initiate_ioa_reset(ioa_cfg, ipr_reset_restore_cfg_space, | |
7997 | IPR_SHUTDOWN_NONE); | |
f8a88b19 LV |
7998 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags); |
7999 | return PCI_ERS_RESULT_RECOVERED; | |
8000 | } | |
8001 | ||
8002 | /** | |
8003 | * ipr_pci_perm_failure - Called when PCI slot is dead for good. | |
8004 | * @pdev: PCI device struct | |
8005 | * | |
8006 | * Description: This routine is called when the PCI bus has | |
8007 | * permanently failed. | |
8008 | */ | |
8009 | static void ipr_pci_perm_failure(struct pci_dev *pdev) | |
8010 | { | |
8011 | unsigned long flags = 0; | |
8012 | struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev); | |
8013 | ||
8014 | spin_lock_irqsave(ioa_cfg->host->host_lock, flags); | |
8015 | if (ioa_cfg->sdt_state == WAIT_FOR_DUMP) | |
8016 | ioa_cfg->sdt_state = ABORT_DUMP; | |
8017 | ioa_cfg->reset_retries = IPR_NUM_RESET_RELOAD_RETRIES; | |
8018 | ioa_cfg->in_ioa_bringdown = 1; | |
6ff63896 | 8019 | ioa_cfg->allow_cmds = 0; |
f8a88b19 LV |
8020 | ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE); |
8021 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags); | |
8022 | } | |
8023 | ||
8024 | /** | |
8025 | * ipr_pci_error_detected - Called when a PCI error is detected. | |
8026 | * @pdev: PCI device struct | |
8027 | * @state: PCI channel state | |
8028 | * | |
8029 | * Description: Called when a PCI error is detected. | |
8030 | * | |
8031 | * Return value: | |
8032 | * PCI_ERS_RESULT_NEED_RESET or PCI_ERS_RESULT_DISCONNECT | |
8033 | */ | |
8034 | static pci_ers_result_t ipr_pci_error_detected(struct pci_dev *pdev, | |
8035 | pci_channel_state_t state) | |
8036 | { | |
8037 | switch (state) { | |
8038 | case pci_channel_io_frozen: | |
8039 | ipr_pci_frozen(pdev); | |
8040 | return PCI_ERS_RESULT_NEED_RESET; | |
8041 | case pci_channel_io_perm_failure: | |
8042 | ipr_pci_perm_failure(pdev); | |
8043 | return PCI_ERS_RESULT_DISCONNECT; | |
8044 | break; | |
8045 | default: | |
8046 | break; | |
8047 | } | |
8048 | return PCI_ERS_RESULT_NEED_RESET; | |
8049 | } | |
8050 | ||
1da177e4 LT |
8051 | /** |
8052 | * ipr_probe_ioa_part2 - Initializes IOAs found in ipr_probe_ioa(..) | |
8053 | * @ioa_cfg: ioa cfg struct | |
8054 | * | |
8055 | * Description: This is the second phase of adapter intialization | |
8056 | * This function takes care of initilizing the adapter to the point | |
8057 | * where it can accept new commands. | |
8058 | ||
8059 | * Return value: | |
b1c11812 | 8060 | * 0 on success / -EIO on failure |
1da177e4 LT |
8061 | **/ |
8062 | static int __devinit ipr_probe_ioa_part2(struct ipr_ioa_cfg *ioa_cfg) | |
8063 | { | |
8064 | int rc = 0; | |
8065 | unsigned long host_lock_flags = 0; | |
8066 | ||
8067 | ENTER; | |
8068 | spin_lock_irqsave(ioa_cfg->host->host_lock, host_lock_flags); | |
8069 | dev_dbg(&ioa_cfg->pdev->dev, "ioa_cfg adx: 0x%p\n", ioa_cfg); | |
ce155cce | 8070 | if (ioa_cfg->needs_hard_reset) { |
8071 | ioa_cfg->needs_hard_reset = 0; | |
8072 | ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE); | |
8073 | } else | |
8074 | _ipr_initiate_ioa_reset(ioa_cfg, ipr_reset_enable_ioa, | |
8075 | IPR_SHUTDOWN_NONE); | |
1da177e4 LT |
8076 | |
8077 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, host_lock_flags); | |
8078 | wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload); | |
8079 | spin_lock_irqsave(ioa_cfg->host->host_lock, host_lock_flags); | |
8080 | ||
8081 | if (ioa_cfg->ioa_is_dead) { | |
8082 | rc = -EIO; | |
8083 | } else if (ipr_invalid_adapter(ioa_cfg)) { | |
8084 | if (!ipr_testmode) | |
8085 | rc = -EIO; | |
8086 | ||
8087 | dev_err(&ioa_cfg->pdev->dev, | |
8088 | "Adapter not supported in this hardware configuration.\n"); | |
8089 | } | |
8090 | ||
8091 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, host_lock_flags); | |
8092 | ||
8093 | LEAVE; | |
8094 | return rc; | |
8095 | } | |
8096 | ||
8097 | /** | |
8098 | * ipr_free_cmd_blks - Frees command blocks allocated for an adapter | |
8099 | * @ioa_cfg: ioa config struct | |
8100 | * | |
8101 | * Return value: | |
8102 | * none | |
8103 | **/ | |
8104 | static void ipr_free_cmd_blks(struct ipr_ioa_cfg *ioa_cfg) | |
8105 | { | |
8106 | int i; | |
8107 | ||
8108 | for (i = 0; i < IPR_NUM_CMD_BLKS; i++) { | |
8109 | if (ioa_cfg->ipr_cmnd_list[i]) | |
8110 | pci_pool_free(ioa_cfg->ipr_cmd_pool, | |
8111 | ioa_cfg->ipr_cmnd_list[i], | |
8112 | ioa_cfg->ipr_cmnd_list_dma[i]); | |
8113 | ||
8114 | ioa_cfg->ipr_cmnd_list[i] = NULL; | |
8115 | } | |
8116 | ||
8117 | if (ioa_cfg->ipr_cmd_pool) | |
8118 | pci_pool_destroy (ioa_cfg->ipr_cmd_pool); | |
8119 | ||
8120 | ioa_cfg->ipr_cmd_pool = NULL; | |
8121 | } | |
8122 | ||
8123 | /** | |
8124 | * ipr_free_mem - Frees memory allocated for an adapter | |
8125 | * @ioa_cfg: ioa cfg struct | |
8126 | * | |
8127 | * Return value: | |
8128 | * nothing | |
8129 | **/ | |
8130 | static void ipr_free_mem(struct ipr_ioa_cfg *ioa_cfg) | |
8131 | { | |
8132 | int i; | |
8133 | ||
8134 | kfree(ioa_cfg->res_entries); | |
8135 | pci_free_consistent(ioa_cfg->pdev, sizeof(struct ipr_misc_cbs), | |
8136 | ioa_cfg->vpd_cbs, ioa_cfg->vpd_cbs_dma); | |
8137 | ipr_free_cmd_blks(ioa_cfg); | |
8138 | pci_free_consistent(ioa_cfg->pdev, sizeof(u32) * IPR_NUM_CMD_BLKS, | |
8139 | ioa_cfg->host_rrq, ioa_cfg->host_rrq_dma); | |
3e7ebdfa WB |
8140 | pci_free_consistent(ioa_cfg->pdev, ioa_cfg->cfg_table_size, |
8141 | ioa_cfg->u.cfg_table, | |
1da177e4 LT |
8142 | ioa_cfg->cfg_table_dma); |
8143 | ||
8144 | for (i = 0; i < IPR_NUM_HCAMS; i++) { | |
8145 | pci_free_consistent(ioa_cfg->pdev, | |
8146 | sizeof(struct ipr_hostrcb), | |
8147 | ioa_cfg->hostrcb[i], | |
8148 | ioa_cfg->hostrcb_dma[i]); | |
8149 | } | |
8150 | ||
8151 | ipr_free_dump(ioa_cfg); | |
1da177e4 LT |
8152 | kfree(ioa_cfg->trace); |
8153 | } | |
8154 | ||
8155 | /** | |
8156 | * ipr_free_all_resources - Free all allocated resources for an adapter. | |
8157 | * @ipr_cmd: ipr command struct | |
8158 | * | |
8159 | * This function frees all allocated resources for the | |
8160 | * specified adapter. | |
8161 | * | |
8162 | * Return value: | |
8163 | * none | |
8164 | **/ | |
8165 | static void ipr_free_all_resources(struct ipr_ioa_cfg *ioa_cfg) | |
8166 | { | |
8167 | struct pci_dev *pdev = ioa_cfg->pdev; | |
8168 | ||
8169 | ENTER; | |
8170 | free_irq(pdev->irq, ioa_cfg); | |
5a9ef25b | 8171 | pci_disable_msi(pdev); |
1da177e4 LT |
8172 | iounmap(ioa_cfg->hdw_dma_regs); |
8173 | pci_release_regions(pdev); | |
8174 | ipr_free_mem(ioa_cfg); | |
8175 | scsi_host_put(ioa_cfg->host); | |
8176 | pci_disable_device(pdev); | |
8177 | LEAVE; | |
8178 | } | |
8179 | ||
8180 | /** | |
8181 | * ipr_alloc_cmd_blks - Allocate command blocks for an adapter | |
8182 | * @ioa_cfg: ioa config struct | |
8183 | * | |
8184 | * Return value: | |
8185 | * 0 on success / -ENOMEM on allocation failure | |
8186 | **/ | |
8187 | static int __devinit ipr_alloc_cmd_blks(struct ipr_ioa_cfg *ioa_cfg) | |
8188 | { | |
8189 | struct ipr_cmnd *ipr_cmd; | |
8190 | struct ipr_ioarcb *ioarcb; | |
8191 | dma_addr_t dma_addr; | |
8192 | int i; | |
8193 | ||
8194 | ioa_cfg->ipr_cmd_pool = pci_pool_create (IPR_NAME, ioa_cfg->pdev, | |
a32c055f | 8195 | sizeof(struct ipr_cmnd), 16, 0); |
1da177e4 LT |
8196 | |
8197 | if (!ioa_cfg->ipr_cmd_pool) | |
8198 | return -ENOMEM; | |
8199 | ||
8200 | for (i = 0; i < IPR_NUM_CMD_BLKS; i++) { | |
e94b1766 | 8201 | ipr_cmd = pci_pool_alloc (ioa_cfg->ipr_cmd_pool, GFP_KERNEL, &dma_addr); |
1da177e4 LT |
8202 | |
8203 | if (!ipr_cmd) { | |
8204 | ipr_free_cmd_blks(ioa_cfg); | |
8205 | return -ENOMEM; | |
8206 | } | |
8207 | ||
8208 | memset(ipr_cmd, 0, sizeof(*ipr_cmd)); | |
8209 | ioa_cfg->ipr_cmnd_list[i] = ipr_cmd; | |
8210 | ioa_cfg->ipr_cmnd_list_dma[i] = dma_addr; | |
8211 | ||
8212 | ioarcb = &ipr_cmd->ioarcb; | |
a32c055f WB |
8213 | ipr_cmd->dma_addr = dma_addr; |
8214 | if (ioa_cfg->sis64) | |
8215 | ioarcb->a.ioarcb_host_pci_addr64 = cpu_to_be64(dma_addr); | |
8216 | else | |
8217 | ioarcb->a.ioarcb_host_pci_addr = cpu_to_be32(dma_addr); | |
8218 | ||
1da177e4 | 8219 | ioarcb->host_response_handle = cpu_to_be32(i << 2); |
a32c055f WB |
8220 | if (ioa_cfg->sis64) { |
8221 | ioarcb->u.sis64_addr_data.data_ioadl_addr = | |
8222 | cpu_to_be64(dma_addr + offsetof(struct ipr_cmnd, i.ioadl64)); | |
8223 | ioarcb->u.sis64_addr_data.ioasa_host_pci_addr = | |
96d21f00 | 8224 | cpu_to_be64(dma_addr + offsetof(struct ipr_cmnd, s.ioasa64)); |
a32c055f WB |
8225 | } else { |
8226 | ioarcb->write_ioadl_addr = | |
8227 | cpu_to_be32(dma_addr + offsetof(struct ipr_cmnd, i.ioadl)); | |
8228 | ioarcb->read_ioadl_addr = ioarcb->write_ioadl_addr; | |
8229 | ioarcb->ioasa_host_pci_addr = | |
96d21f00 | 8230 | cpu_to_be32(dma_addr + offsetof(struct ipr_cmnd, s.ioasa)); |
a32c055f | 8231 | } |
1da177e4 LT |
8232 | ioarcb->ioasa_len = cpu_to_be16(sizeof(struct ipr_ioasa)); |
8233 | ipr_cmd->cmd_index = i; | |
8234 | ipr_cmd->ioa_cfg = ioa_cfg; | |
8235 | ipr_cmd->sense_buffer_dma = dma_addr + | |
8236 | offsetof(struct ipr_cmnd, sense_buffer); | |
8237 | ||
8238 | list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q); | |
8239 | } | |
8240 | ||
8241 | return 0; | |
8242 | } | |
8243 | ||
8244 | /** | |
8245 | * ipr_alloc_mem - Allocate memory for an adapter | |
8246 | * @ioa_cfg: ioa config struct | |
8247 | * | |
8248 | * Return value: | |
8249 | * 0 on success / non-zero for error | |
8250 | **/ | |
8251 | static int __devinit ipr_alloc_mem(struct ipr_ioa_cfg *ioa_cfg) | |
8252 | { | |
8253 | struct pci_dev *pdev = ioa_cfg->pdev; | |
8254 | int i, rc = -ENOMEM; | |
8255 | ||
8256 | ENTER; | |
0bc42e35 | 8257 | ioa_cfg->res_entries = kzalloc(sizeof(struct ipr_resource_entry) * |
3e7ebdfa | 8258 | ioa_cfg->max_devs_supported, GFP_KERNEL); |
1da177e4 LT |
8259 | |
8260 | if (!ioa_cfg->res_entries) | |
8261 | goto out; | |
8262 | ||
3e7ebdfa WB |
8263 | if (ioa_cfg->sis64) { |
8264 | ioa_cfg->target_ids = kzalloc(sizeof(unsigned long) * | |
8265 | BITS_TO_LONGS(ioa_cfg->max_devs_supported), GFP_KERNEL); | |
8266 | ioa_cfg->array_ids = kzalloc(sizeof(unsigned long) * | |
8267 | BITS_TO_LONGS(ioa_cfg->max_devs_supported), GFP_KERNEL); | |
8268 | ioa_cfg->vset_ids = kzalloc(sizeof(unsigned long) * | |
8269 | BITS_TO_LONGS(ioa_cfg->max_devs_supported), GFP_KERNEL); | |
8270 | } | |
8271 | ||
8272 | for (i = 0; i < ioa_cfg->max_devs_supported; i++) { | |
1da177e4 | 8273 | list_add_tail(&ioa_cfg->res_entries[i].queue, &ioa_cfg->free_res_q); |
3e7ebdfa WB |
8274 | ioa_cfg->res_entries[i].ioa_cfg = ioa_cfg; |
8275 | } | |
1da177e4 LT |
8276 | |
8277 | ioa_cfg->vpd_cbs = pci_alloc_consistent(ioa_cfg->pdev, | |
8278 | sizeof(struct ipr_misc_cbs), | |
8279 | &ioa_cfg->vpd_cbs_dma); | |
8280 | ||
8281 | if (!ioa_cfg->vpd_cbs) | |
8282 | goto out_free_res_entries; | |
8283 | ||
8284 | if (ipr_alloc_cmd_blks(ioa_cfg)) | |
8285 | goto out_free_vpd_cbs; | |
8286 | ||
8287 | ioa_cfg->host_rrq = pci_alloc_consistent(ioa_cfg->pdev, | |
8288 | sizeof(u32) * IPR_NUM_CMD_BLKS, | |
8289 | &ioa_cfg->host_rrq_dma); | |
8290 | ||
8291 | if (!ioa_cfg->host_rrq) | |
8292 | goto out_ipr_free_cmd_blocks; | |
8293 | ||
3e7ebdfa WB |
8294 | ioa_cfg->u.cfg_table = pci_alloc_consistent(ioa_cfg->pdev, |
8295 | ioa_cfg->cfg_table_size, | |
8296 | &ioa_cfg->cfg_table_dma); | |
1da177e4 | 8297 | |
3e7ebdfa | 8298 | if (!ioa_cfg->u.cfg_table) |
1da177e4 LT |
8299 | goto out_free_host_rrq; |
8300 | ||
8301 | for (i = 0; i < IPR_NUM_HCAMS; i++) { | |
8302 | ioa_cfg->hostrcb[i] = pci_alloc_consistent(ioa_cfg->pdev, | |
8303 | sizeof(struct ipr_hostrcb), | |
8304 | &ioa_cfg->hostrcb_dma[i]); | |
8305 | ||
8306 | if (!ioa_cfg->hostrcb[i]) | |
8307 | goto out_free_hostrcb_dma; | |
8308 | ||
8309 | ioa_cfg->hostrcb[i]->hostrcb_dma = | |
8310 | ioa_cfg->hostrcb_dma[i] + offsetof(struct ipr_hostrcb, hcam); | |
49dc6a18 | 8311 | ioa_cfg->hostrcb[i]->ioa_cfg = ioa_cfg; |
1da177e4 LT |
8312 | list_add_tail(&ioa_cfg->hostrcb[i]->queue, &ioa_cfg->hostrcb_free_q); |
8313 | } | |
8314 | ||
0bc42e35 | 8315 | ioa_cfg->trace = kzalloc(sizeof(struct ipr_trace_entry) * |
1da177e4 LT |
8316 | IPR_NUM_TRACE_ENTRIES, GFP_KERNEL); |
8317 | ||
8318 | if (!ioa_cfg->trace) | |
8319 | goto out_free_hostrcb_dma; | |
8320 | ||
1da177e4 LT |
8321 | rc = 0; |
8322 | out: | |
8323 | LEAVE; | |
8324 | return rc; | |
8325 | ||
8326 | out_free_hostrcb_dma: | |
8327 | while (i-- > 0) { | |
8328 | pci_free_consistent(pdev, sizeof(struct ipr_hostrcb), | |
8329 | ioa_cfg->hostrcb[i], | |
8330 | ioa_cfg->hostrcb_dma[i]); | |
8331 | } | |
3e7ebdfa WB |
8332 | pci_free_consistent(pdev, ioa_cfg->cfg_table_size, |
8333 | ioa_cfg->u.cfg_table, | |
8334 | ioa_cfg->cfg_table_dma); | |
1da177e4 LT |
8335 | out_free_host_rrq: |
8336 | pci_free_consistent(pdev, sizeof(u32) * IPR_NUM_CMD_BLKS, | |
8337 | ioa_cfg->host_rrq, ioa_cfg->host_rrq_dma); | |
8338 | out_ipr_free_cmd_blocks: | |
8339 | ipr_free_cmd_blks(ioa_cfg); | |
8340 | out_free_vpd_cbs: | |
8341 | pci_free_consistent(pdev, sizeof(struct ipr_misc_cbs), | |
8342 | ioa_cfg->vpd_cbs, ioa_cfg->vpd_cbs_dma); | |
8343 | out_free_res_entries: | |
8344 | kfree(ioa_cfg->res_entries); | |
8345 | goto out; | |
8346 | } | |
8347 | ||
8348 | /** | |
8349 | * ipr_initialize_bus_attr - Initialize SCSI bus attributes to default values | |
8350 | * @ioa_cfg: ioa config struct | |
8351 | * | |
8352 | * Return value: | |
8353 | * none | |
8354 | **/ | |
8355 | static void __devinit ipr_initialize_bus_attr(struct ipr_ioa_cfg *ioa_cfg) | |
8356 | { | |
8357 | int i; | |
8358 | ||
8359 | for (i = 0; i < IPR_MAX_NUM_BUSES; i++) { | |
8360 | ioa_cfg->bus_attr[i].bus = i; | |
8361 | ioa_cfg->bus_attr[i].qas_enabled = 0; | |
8362 | ioa_cfg->bus_attr[i].bus_width = IPR_DEFAULT_BUS_WIDTH; | |
8363 | if (ipr_max_speed < ARRAY_SIZE(ipr_max_bus_speeds)) | |
8364 | ioa_cfg->bus_attr[i].max_xfer_rate = ipr_max_bus_speeds[ipr_max_speed]; | |
8365 | else | |
8366 | ioa_cfg->bus_attr[i].max_xfer_rate = IPR_U160_SCSI_RATE; | |
8367 | } | |
8368 | } | |
8369 | ||
8370 | /** | |
8371 | * ipr_init_ioa_cfg - Initialize IOA config struct | |
8372 | * @ioa_cfg: ioa config struct | |
8373 | * @host: scsi host struct | |
8374 | * @pdev: PCI dev struct | |
8375 | * | |
8376 | * Return value: | |
8377 | * none | |
8378 | **/ | |
8379 | static void __devinit ipr_init_ioa_cfg(struct ipr_ioa_cfg *ioa_cfg, | |
8380 | struct Scsi_Host *host, struct pci_dev *pdev) | |
8381 | { | |
8382 | const struct ipr_interrupt_offsets *p; | |
8383 | struct ipr_interrupts *t; | |
8384 | void __iomem *base; | |
8385 | ||
8386 | ioa_cfg->host = host; | |
8387 | ioa_cfg->pdev = pdev; | |
8388 | ioa_cfg->log_level = ipr_log_level; | |
3d1d0da6 | 8389 | ioa_cfg->doorbell = IPR_DOORBELL; |
1da177e4 LT |
8390 | sprintf(ioa_cfg->eye_catcher, IPR_EYECATCHER); |
8391 | sprintf(ioa_cfg->trace_start, IPR_TRACE_START_LABEL); | |
8392 | sprintf(ioa_cfg->ipr_free_label, IPR_FREEQ_LABEL); | |
8393 | sprintf(ioa_cfg->ipr_pending_label, IPR_PENDQ_LABEL); | |
8394 | sprintf(ioa_cfg->cfg_table_start, IPR_CFG_TBL_START); | |
8395 | sprintf(ioa_cfg->resource_table_label, IPR_RES_TABLE_LABEL); | |
8396 | sprintf(ioa_cfg->ipr_hcam_label, IPR_HCAM_LABEL); | |
8397 | sprintf(ioa_cfg->ipr_cmd_label, IPR_CMD_LABEL); | |
8398 | ||
8399 | INIT_LIST_HEAD(&ioa_cfg->free_q); | |
8400 | INIT_LIST_HEAD(&ioa_cfg->pending_q); | |
8401 | INIT_LIST_HEAD(&ioa_cfg->hostrcb_free_q); | |
8402 | INIT_LIST_HEAD(&ioa_cfg->hostrcb_pending_q); | |
8403 | INIT_LIST_HEAD(&ioa_cfg->free_res_q); | |
8404 | INIT_LIST_HEAD(&ioa_cfg->used_res_q); | |
c4028958 | 8405 | INIT_WORK(&ioa_cfg->work_q, ipr_worker_thread); |
1da177e4 | 8406 | init_waitqueue_head(&ioa_cfg->reset_wait_q); |
95fecd90 | 8407 | init_waitqueue_head(&ioa_cfg->msi_wait_q); |
1da177e4 LT |
8408 | ioa_cfg->sdt_state = INACTIVE; |
8409 | ||
8410 | ipr_initialize_bus_attr(ioa_cfg); | |
3e7ebdfa | 8411 | ioa_cfg->max_devs_supported = ipr_max_devs; |
1da177e4 | 8412 | |
3e7ebdfa WB |
8413 | if (ioa_cfg->sis64) { |
8414 | host->max_id = IPR_MAX_SIS64_TARGETS_PER_BUS; | |
8415 | host->max_lun = IPR_MAX_SIS64_LUNS_PER_TARGET; | |
8416 | if (ipr_max_devs > IPR_MAX_SIS64_DEVS) | |
8417 | ioa_cfg->max_devs_supported = IPR_MAX_SIS64_DEVS; | |
8418 | } else { | |
8419 | host->max_id = IPR_MAX_NUM_TARGETS_PER_BUS; | |
8420 | host->max_lun = IPR_MAX_NUM_LUNS_PER_TARGET; | |
8421 | if (ipr_max_devs > IPR_MAX_PHYSICAL_DEVS) | |
8422 | ioa_cfg->max_devs_supported = IPR_MAX_PHYSICAL_DEVS; | |
8423 | } | |
1da177e4 LT |
8424 | host->max_channel = IPR_MAX_BUS_TO_SCAN; |
8425 | host->unique_id = host->host_no; | |
8426 | host->max_cmd_len = IPR_MAX_CDB_LEN; | |
8427 | pci_set_drvdata(pdev, ioa_cfg); | |
8428 | ||
8429 | p = &ioa_cfg->chip_cfg->regs; | |
8430 | t = &ioa_cfg->regs; | |
8431 | base = ioa_cfg->hdw_dma_regs; | |
8432 | ||
8433 | t->set_interrupt_mask_reg = base + p->set_interrupt_mask_reg; | |
8434 | t->clr_interrupt_mask_reg = base + p->clr_interrupt_mask_reg; | |
214777ba | 8435 | t->clr_interrupt_mask_reg32 = base + p->clr_interrupt_mask_reg32; |
1da177e4 | 8436 | t->sense_interrupt_mask_reg = base + p->sense_interrupt_mask_reg; |
214777ba | 8437 | t->sense_interrupt_mask_reg32 = base + p->sense_interrupt_mask_reg32; |
1da177e4 | 8438 | t->clr_interrupt_reg = base + p->clr_interrupt_reg; |
214777ba | 8439 | t->clr_interrupt_reg32 = base + p->clr_interrupt_reg32; |
1da177e4 | 8440 | t->sense_interrupt_reg = base + p->sense_interrupt_reg; |
214777ba | 8441 | t->sense_interrupt_reg32 = base + p->sense_interrupt_reg32; |
1da177e4 LT |
8442 | t->ioarrin_reg = base + p->ioarrin_reg; |
8443 | t->sense_uproc_interrupt_reg = base + p->sense_uproc_interrupt_reg; | |
214777ba | 8444 | t->sense_uproc_interrupt_reg32 = base + p->sense_uproc_interrupt_reg32; |
1da177e4 | 8445 | t->set_uproc_interrupt_reg = base + p->set_uproc_interrupt_reg; |
214777ba | 8446 | t->set_uproc_interrupt_reg32 = base + p->set_uproc_interrupt_reg32; |
1da177e4 | 8447 | t->clr_uproc_interrupt_reg = base + p->clr_uproc_interrupt_reg; |
214777ba | 8448 | t->clr_uproc_interrupt_reg32 = base + p->clr_uproc_interrupt_reg32; |
dcbad00e WB |
8449 | |
8450 | if (ioa_cfg->sis64) { | |
214777ba | 8451 | t->init_feedback_reg = base + p->init_feedback_reg; |
dcbad00e WB |
8452 | t->dump_addr_reg = base + p->dump_addr_reg; |
8453 | t->dump_data_reg = base + p->dump_data_reg; | |
8701f185 | 8454 | t->endian_swap_reg = base + p->endian_swap_reg; |
dcbad00e | 8455 | } |
1da177e4 LT |
8456 | } |
8457 | ||
8458 | /** | |
1be7bd82 | 8459 | * ipr_get_chip_info - Find adapter chip information |
1da177e4 LT |
8460 | * @dev_id: PCI device id struct |
8461 | * | |
8462 | * Return value: | |
1be7bd82 | 8463 | * ptr to chip information on success / NULL on failure |
1da177e4 | 8464 | **/ |
1be7bd82 WB |
8465 | static const struct ipr_chip_t * __devinit |
8466 | ipr_get_chip_info(const struct pci_device_id *dev_id) | |
1da177e4 LT |
8467 | { |
8468 | int i; | |
8469 | ||
1da177e4 LT |
8470 | for (i = 0; i < ARRAY_SIZE(ipr_chip); i++) |
8471 | if (ipr_chip[i].vendor == dev_id->vendor && | |
8472 | ipr_chip[i].device == dev_id->device) | |
1be7bd82 | 8473 | return &ipr_chip[i]; |
1da177e4 LT |
8474 | return NULL; |
8475 | } | |
8476 | ||
95fecd90 WB |
8477 | /** |
8478 | * ipr_test_intr - Handle the interrupt generated in ipr_test_msi(). | |
8479 | * @pdev: PCI device struct | |
8480 | * | |
8481 | * Description: Simply set the msi_received flag to 1 indicating that | |
8482 | * Message Signaled Interrupts are supported. | |
8483 | * | |
8484 | * Return value: | |
8485 | * 0 on success / non-zero on failure | |
8486 | **/ | |
8487 | static irqreturn_t __devinit ipr_test_intr(int irq, void *devp) | |
8488 | { | |
8489 | struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)devp; | |
8490 | unsigned long lock_flags = 0; | |
8491 | irqreturn_t rc = IRQ_HANDLED; | |
8492 | ||
8493 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); | |
8494 | ||
8495 | ioa_cfg->msi_received = 1; | |
8496 | wake_up(&ioa_cfg->msi_wait_q); | |
8497 | ||
8498 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
8499 | return rc; | |
8500 | } | |
8501 | ||
8502 | /** | |
8503 | * ipr_test_msi - Test for Message Signaled Interrupt (MSI) support. | |
8504 | * @pdev: PCI device struct | |
8505 | * | |
8506 | * Description: The return value from pci_enable_msi() can not always be | |
8507 | * trusted. This routine sets up and initiates a test interrupt to determine | |
8508 | * if the interrupt is received via the ipr_test_intr() service routine. | |
8509 | * If the tests fails, the driver will fall back to LSI. | |
8510 | * | |
8511 | * Return value: | |
8512 | * 0 on success / non-zero on failure | |
8513 | **/ | |
8514 | static int __devinit ipr_test_msi(struct ipr_ioa_cfg *ioa_cfg, | |
8515 | struct pci_dev *pdev) | |
8516 | { | |
8517 | int rc; | |
8518 | volatile u32 int_reg; | |
8519 | unsigned long lock_flags = 0; | |
8520 | ||
8521 | ENTER; | |
8522 | ||
8523 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); | |
8524 | init_waitqueue_head(&ioa_cfg->msi_wait_q); | |
8525 | ioa_cfg->msi_received = 0; | |
8526 | ipr_mask_and_clear_interrupts(ioa_cfg, ~IPR_PCII_IOA_TRANS_TO_OPER); | |
214777ba | 8527 | writel(IPR_PCII_IO_DEBUG_ACKNOWLEDGE, ioa_cfg->regs.clr_interrupt_mask_reg32); |
95fecd90 WB |
8528 | int_reg = readl(ioa_cfg->regs.sense_interrupt_mask_reg); |
8529 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
8530 | ||
8531 | rc = request_irq(pdev->irq, ipr_test_intr, 0, IPR_NAME, ioa_cfg); | |
8532 | if (rc) { | |
8533 | dev_err(&pdev->dev, "Can not assign irq %d\n", pdev->irq); | |
8534 | return rc; | |
8535 | } else if (ipr_debug) | |
8536 | dev_info(&pdev->dev, "IRQ assigned: %d\n", pdev->irq); | |
8537 | ||
214777ba | 8538 | writel(IPR_PCII_IO_DEBUG_ACKNOWLEDGE, ioa_cfg->regs.sense_interrupt_reg32); |
95fecd90 WB |
8539 | int_reg = readl(ioa_cfg->regs.sense_interrupt_reg); |
8540 | wait_event_timeout(ioa_cfg->msi_wait_q, ioa_cfg->msi_received, HZ); | |
8541 | ipr_mask_and_clear_interrupts(ioa_cfg, ~IPR_PCII_IOA_TRANS_TO_OPER); | |
8542 | ||
8543 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); | |
8544 | if (!ioa_cfg->msi_received) { | |
8545 | /* MSI test failed */ | |
8546 | dev_info(&pdev->dev, "MSI test failed. Falling back to LSI.\n"); | |
8547 | rc = -EOPNOTSUPP; | |
8548 | } else if (ipr_debug) | |
8549 | dev_info(&pdev->dev, "MSI test succeeded.\n"); | |
8550 | ||
8551 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
8552 | ||
8553 | free_irq(pdev->irq, ioa_cfg); | |
8554 | ||
8555 | LEAVE; | |
8556 | ||
8557 | return rc; | |
8558 | } | |
8559 | ||
1da177e4 LT |
8560 | /** |
8561 | * ipr_probe_ioa - Allocates memory and does first stage of initialization | |
8562 | * @pdev: PCI device struct | |
8563 | * @dev_id: PCI device id struct | |
8564 | * | |
8565 | * Return value: | |
8566 | * 0 on success / non-zero on failure | |
8567 | **/ | |
8568 | static int __devinit ipr_probe_ioa(struct pci_dev *pdev, | |
8569 | const struct pci_device_id *dev_id) | |
8570 | { | |
8571 | struct ipr_ioa_cfg *ioa_cfg; | |
8572 | struct Scsi_Host *host; | |
8573 | unsigned long ipr_regs_pci; | |
8574 | void __iomem *ipr_regs; | |
a2a65a3e | 8575 | int rc = PCIBIOS_SUCCESSFUL; |
473b1e8e | 8576 | volatile u32 mask, uproc, interrupts; |
1da177e4 LT |
8577 | |
8578 | ENTER; | |
8579 | ||
8580 | if ((rc = pci_enable_device(pdev))) { | |
8581 | dev_err(&pdev->dev, "Cannot enable adapter\n"); | |
8582 | goto out; | |
8583 | } | |
8584 | ||
8585 | dev_info(&pdev->dev, "Found IOA with IRQ: %d\n", pdev->irq); | |
8586 | ||
8587 | host = scsi_host_alloc(&driver_template, sizeof(*ioa_cfg)); | |
8588 | ||
8589 | if (!host) { | |
8590 | dev_err(&pdev->dev, "call to scsi_host_alloc failed!\n"); | |
8591 | rc = -ENOMEM; | |
8592 | goto out_disable; | |
8593 | } | |
8594 | ||
8595 | ioa_cfg = (struct ipr_ioa_cfg *)host->hostdata; | |
8596 | memset(ioa_cfg, 0, sizeof(struct ipr_ioa_cfg)); | |
35a39691 BK |
8597 | ata_host_init(&ioa_cfg->ata_host, &pdev->dev, |
8598 | sata_port_info.flags, &ipr_sata_ops); | |
1da177e4 | 8599 | |
1be7bd82 | 8600 | ioa_cfg->ipr_chip = ipr_get_chip_info(dev_id); |
1da177e4 | 8601 | |
1be7bd82 | 8602 | if (!ioa_cfg->ipr_chip) { |
1da177e4 LT |
8603 | dev_err(&pdev->dev, "Unknown adapter chipset 0x%04X 0x%04X\n", |
8604 | dev_id->vendor, dev_id->device); | |
8605 | goto out_scsi_host_put; | |
8606 | } | |
8607 | ||
a32c055f WB |
8608 | /* set SIS 32 or SIS 64 */ |
8609 | ioa_cfg->sis64 = ioa_cfg->ipr_chip->sis_type == IPR_SIS64 ? 1 : 0; | |
1be7bd82 WB |
8610 | ioa_cfg->chip_cfg = ioa_cfg->ipr_chip->cfg; |
8611 | ||
5469cb5b BK |
8612 | if (ipr_transop_timeout) |
8613 | ioa_cfg->transop_timeout = ipr_transop_timeout; | |
8614 | else if (dev_id->driver_data & IPR_USE_LONG_TRANSOP_TIMEOUT) | |
8615 | ioa_cfg->transop_timeout = IPR_LONG_OPERATIONAL_TIMEOUT; | |
8616 | else | |
8617 | ioa_cfg->transop_timeout = IPR_OPERATIONAL_TIMEOUT; | |
8618 | ||
44c10138 | 8619 | ioa_cfg->revid = pdev->revision; |
463fc696 | 8620 | |
1da177e4 LT |
8621 | ipr_regs_pci = pci_resource_start(pdev, 0); |
8622 | ||
8623 | rc = pci_request_regions(pdev, IPR_NAME); | |
8624 | if (rc < 0) { | |
8625 | dev_err(&pdev->dev, | |
8626 | "Couldn't register memory range of registers\n"); | |
8627 | goto out_scsi_host_put; | |
8628 | } | |
8629 | ||
25729a7f | 8630 | ipr_regs = pci_ioremap_bar(pdev, 0); |
1da177e4 LT |
8631 | |
8632 | if (!ipr_regs) { | |
8633 | dev_err(&pdev->dev, | |
8634 | "Couldn't map memory range of registers\n"); | |
8635 | rc = -ENOMEM; | |
8636 | goto out_release_regions; | |
8637 | } | |
8638 | ||
8639 | ioa_cfg->hdw_dma_regs = ipr_regs; | |
8640 | ioa_cfg->hdw_dma_regs_pci = ipr_regs_pci; | |
8641 | ioa_cfg->ioa_mailbox = ioa_cfg->chip_cfg->mailbox + ipr_regs; | |
8642 | ||
8643 | ipr_init_ioa_cfg(ioa_cfg, host, pdev); | |
8644 | ||
8645 | pci_set_master(pdev); | |
8646 | ||
a32c055f WB |
8647 | if (ioa_cfg->sis64) { |
8648 | rc = pci_set_dma_mask(pdev, DMA_BIT_MASK(64)); | |
8649 | if (rc < 0) { | |
8650 | dev_dbg(&pdev->dev, "Failed to set 64 bit PCI DMA mask\n"); | |
8651 | rc = pci_set_dma_mask(pdev, DMA_BIT_MASK(32)); | |
8652 | } | |
8653 | ||
8654 | } else | |
8655 | rc = pci_set_dma_mask(pdev, DMA_BIT_MASK(32)); | |
8656 | ||
1da177e4 LT |
8657 | if (rc < 0) { |
8658 | dev_err(&pdev->dev, "Failed to set PCI DMA mask\n"); | |
8659 | goto cleanup_nomem; | |
8660 | } | |
8661 | ||
8662 | rc = pci_write_config_byte(pdev, PCI_CACHE_LINE_SIZE, | |
8663 | ioa_cfg->chip_cfg->cache_line_size); | |
8664 | ||
8665 | if (rc != PCIBIOS_SUCCESSFUL) { | |
8666 | dev_err(&pdev->dev, "Write of cache line size failed\n"); | |
8667 | rc = -EIO; | |
8668 | goto cleanup_nomem; | |
8669 | } | |
8670 | ||
95fecd90 | 8671 | /* Enable MSI style interrupts if they are supported. */ |
1be7bd82 | 8672 | if (ioa_cfg->ipr_chip->intr_type == IPR_USE_MSI && !pci_enable_msi(pdev)) { |
95fecd90 WB |
8673 | rc = ipr_test_msi(ioa_cfg, pdev); |
8674 | if (rc == -EOPNOTSUPP) | |
8675 | pci_disable_msi(pdev); | |
8676 | else if (rc) | |
8677 | goto out_msi_disable; | |
8678 | else | |
8679 | dev_info(&pdev->dev, "MSI enabled with IRQ: %d\n", pdev->irq); | |
8680 | } else if (ipr_debug) | |
8681 | dev_info(&pdev->dev, "Cannot enable MSI.\n"); | |
8682 | ||
1da177e4 LT |
8683 | /* Save away PCI config space for use following IOA reset */ |
8684 | rc = pci_save_state(pdev); | |
8685 | ||
8686 | if (rc != PCIBIOS_SUCCESSFUL) { | |
8687 | dev_err(&pdev->dev, "Failed to save PCI config space\n"); | |
8688 | rc = -EIO; | |
8689 | goto cleanup_nomem; | |
8690 | } | |
8691 | ||
8692 | if ((rc = ipr_save_pcix_cmd_reg(ioa_cfg))) | |
8693 | goto cleanup_nomem; | |
8694 | ||
8695 | if ((rc = ipr_set_pcix_cmd_reg(ioa_cfg))) | |
8696 | goto cleanup_nomem; | |
8697 | ||
3e7ebdfa WB |
8698 | if (ioa_cfg->sis64) |
8699 | ioa_cfg->cfg_table_size = (sizeof(struct ipr_config_table_hdr64) | |
8700 | + ((sizeof(struct ipr_config_table_entry64) | |
8701 | * ioa_cfg->max_devs_supported))); | |
8702 | else | |
8703 | ioa_cfg->cfg_table_size = (sizeof(struct ipr_config_table_hdr) | |
8704 | + ((sizeof(struct ipr_config_table_entry) | |
8705 | * ioa_cfg->max_devs_supported))); | |
8706 | ||
1da177e4 LT |
8707 | rc = ipr_alloc_mem(ioa_cfg); |
8708 | if (rc < 0) { | |
8709 | dev_err(&pdev->dev, | |
8710 | "Couldn't allocate enough memory for device driver!\n"); | |
8711 | goto cleanup_nomem; | |
8712 | } | |
8713 | ||
ce155cce | 8714 | /* |
8715 | * If HRRQ updated interrupt is not masked, or reset alert is set, | |
8716 | * the card is in an unknown state and needs a hard reset | |
8717 | */ | |
214777ba WB |
8718 | mask = readl(ioa_cfg->regs.sense_interrupt_mask_reg32); |
8719 | interrupts = readl(ioa_cfg->regs.sense_interrupt_reg32); | |
8720 | uproc = readl(ioa_cfg->regs.sense_uproc_interrupt_reg32); | |
ce155cce | 8721 | if ((mask & IPR_PCII_HRRQ_UPDATED) == 0 || (uproc & IPR_UPROCI_RESET_ALERT)) |
8722 | ioa_cfg->needs_hard_reset = 1; | |
473b1e8e BK |
8723 | if (interrupts & IPR_PCII_ERROR_INTERRUPTS) |
8724 | ioa_cfg->needs_hard_reset = 1; | |
8725 | if (interrupts & IPR_PCII_IOA_UNIT_CHECKED) | |
8726 | ioa_cfg->ioa_unit_checked = 1; | |
ce155cce | 8727 | |
1da177e4 | 8728 | ipr_mask_and_clear_interrupts(ioa_cfg, ~IPR_PCII_IOA_TRANS_TO_OPER); |
95fecd90 WB |
8729 | rc = request_irq(pdev->irq, ipr_isr, |
8730 | ioa_cfg->msi_received ? 0 : IRQF_SHARED, | |
8731 | IPR_NAME, ioa_cfg); | |
1da177e4 LT |
8732 | |
8733 | if (rc) { | |
8734 | dev_err(&pdev->dev, "Couldn't register IRQ %d! rc=%d\n", | |
8735 | pdev->irq, rc); | |
8736 | goto cleanup_nolog; | |
8737 | } | |
8738 | ||
463fc696 BK |
8739 | if ((dev_id->driver_data & IPR_USE_PCI_WARM_RESET) || |
8740 | (dev_id->device == PCI_DEVICE_ID_IBM_OBSIDIAN_E && !ioa_cfg->revid)) { | |
8741 | ioa_cfg->needs_warm_reset = 1; | |
8742 | ioa_cfg->reset = ipr_reset_slot_reset; | |
8743 | } else | |
8744 | ioa_cfg->reset = ipr_reset_start_bist; | |
8745 | ||
1da177e4 LT |
8746 | spin_lock(&ipr_driver_lock); |
8747 | list_add_tail(&ioa_cfg->queue, &ipr_ioa_head); | |
8748 | spin_unlock(&ipr_driver_lock); | |
8749 | ||
8750 | LEAVE; | |
8751 | out: | |
8752 | return rc; | |
8753 | ||
8754 | cleanup_nolog: | |
8755 | ipr_free_mem(ioa_cfg); | |
8756 | cleanup_nomem: | |
8757 | iounmap(ipr_regs); | |
95fecd90 WB |
8758 | out_msi_disable: |
8759 | pci_disable_msi(pdev); | |
1da177e4 LT |
8760 | out_release_regions: |
8761 | pci_release_regions(pdev); | |
8762 | out_scsi_host_put: | |
8763 | scsi_host_put(host); | |
8764 | out_disable: | |
8765 | pci_disable_device(pdev); | |
8766 | goto out; | |
8767 | } | |
8768 | ||
8769 | /** | |
8770 | * ipr_scan_vsets - Scans for VSET devices | |
8771 | * @ioa_cfg: ioa config struct | |
8772 | * | |
8773 | * Description: Since the VSET resources do not follow SAM in that we can have | |
8774 | * sparse LUNs with no LUN 0, we have to scan for these ourselves. | |
8775 | * | |
8776 | * Return value: | |
8777 | * none | |
8778 | **/ | |
8779 | static void ipr_scan_vsets(struct ipr_ioa_cfg *ioa_cfg) | |
8780 | { | |
8781 | int target, lun; | |
8782 | ||
8783 | for (target = 0; target < IPR_MAX_NUM_TARGETS_PER_BUS; target++) | |
8784 | for (lun = 0; lun < IPR_MAX_NUM_VSET_LUNS_PER_TARGET; lun++ ) | |
8785 | scsi_add_device(ioa_cfg->host, IPR_VSET_BUS, target, lun); | |
8786 | } | |
8787 | ||
8788 | /** | |
8789 | * ipr_initiate_ioa_bringdown - Bring down an adapter | |
8790 | * @ioa_cfg: ioa config struct | |
8791 | * @shutdown_type: shutdown type | |
8792 | * | |
8793 | * Description: This function will initiate bringing down the adapter. | |
8794 | * This consists of issuing an IOA shutdown to the adapter | |
8795 | * to flush the cache, and running BIST. | |
8796 | * If the caller needs to wait on the completion of the reset, | |
8797 | * the caller must sleep on the reset_wait_q. | |
8798 | * | |
8799 | * Return value: | |
8800 | * none | |
8801 | **/ | |
8802 | static void ipr_initiate_ioa_bringdown(struct ipr_ioa_cfg *ioa_cfg, | |
8803 | enum ipr_shutdown_type shutdown_type) | |
8804 | { | |
8805 | ENTER; | |
8806 | if (ioa_cfg->sdt_state == WAIT_FOR_DUMP) | |
8807 | ioa_cfg->sdt_state = ABORT_DUMP; | |
8808 | ioa_cfg->reset_retries = 0; | |
8809 | ioa_cfg->in_ioa_bringdown = 1; | |
8810 | ipr_initiate_ioa_reset(ioa_cfg, shutdown_type); | |
8811 | LEAVE; | |
8812 | } | |
8813 | ||
8814 | /** | |
8815 | * __ipr_remove - Remove a single adapter | |
8816 | * @pdev: pci device struct | |
8817 | * | |
8818 | * Adapter hot plug remove entry point. | |
8819 | * | |
8820 | * Return value: | |
8821 | * none | |
8822 | **/ | |
8823 | static void __ipr_remove(struct pci_dev *pdev) | |
8824 | { | |
8825 | unsigned long host_lock_flags = 0; | |
8826 | struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev); | |
8827 | ENTER; | |
8828 | ||
8829 | spin_lock_irqsave(ioa_cfg->host->host_lock, host_lock_flags); | |
970ea294 BK |
8830 | while(ioa_cfg->in_reset_reload) { |
8831 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, host_lock_flags); | |
8832 | wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload); | |
8833 | spin_lock_irqsave(ioa_cfg->host->host_lock, host_lock_flags); | |
8834 | } | |
8835 | ||
1da177e4 LT |
8836 | ipr_initiate_ioa_bringdown(ioa_cfg, IPR_SHUTDOWN_NORMAL); |
8837 | ||
8838 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, host_lock_flags); | |
8839 | wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload); | |
5cbf5eae | 8840 | flush_scheduled_work(); |
1da177e4 LT |
8841 | spin_lock_irqsave(ioa_cfg->host->host_lock, host_lock_flags); |
8842 | ||
8843 | spin_lock(&ipr_driver_lock); | |
8844 | list_del(&ioa_cfg->queue); | |
8845 | spin_unlock(&ipr_driver_lock); | |
8846 | ||
8847 | if (ioa_cfg->sdt_state == ABORT_DUMP) | |
8848 | ioa_cfg->sdt_state = WAIT_FOR_DUMP; | |
8849 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, host_lock_flags); | |
8850 | ||
8851 | ipr_free_all_resources(ioa_cfg); | |
8852 | ||
8853 | LEAVE; | |
8854 | } | |
8855 | ||
8856 | /** | |
8857 | * ipr_remove - IOA hot plug remove entry point | |
8858 | * @pdev: pci device struct | |
8859 | * | |
8860 | * Adapter hot plug remove entry point. | |
8861 | * | |
8862 | * Return value: | |
8863 | * none | |
8864 | **/ | |
f381642d | 8865 | static void __devexit ipr_remove(struct pci_dev *pdev) |
1da177e4 LT |
8866 | { |
8867 | struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev); | |
8868 | ||
8869 | ENTER; | |
8870 | ||
ee959b00 | 8871 | ipr_remove_trace_file(&ioa_cfg->host->shost_dev.kobj, |
1da177e4 | 8872 | &ipr_trace_attr); |
ee959b00 | 8873 | ipr_remove_dump_file(&ioa_cfg->host->shost_dev.kobj, |
1da177e4 LT |
8874 | &ipr_dump_attr); |
8875 | scsi_remove_host(ioa_cfg->host); | |
8876 | ||
8877 | __ipr_remove(pdev); | |
8878 | ||
8879 | LEAVE; | |
8880 | } | |
8881 | ||
8882 | /** | |
8883 | * ipr_probe - Adapter hot plug add entry point | |
8884 | * | |
8885 | * Return value: | |
8886 | * 0 on success / non-zero on failure | |
8887 | **/ | |
8888 | static int __devinit ipr_probe(struct pci_dev *pdev, | |
8889 | const struct pci_device_id *dev_id) | |
8890 | { | |
8891 | struct ipr_ioa_cfg *ioa_cfg; | |
8892 | int rc; | |
8893 | ||
8894 | rc = ipr_probe_ioa(pdev, dev_id); | |
8895 | ||
8896 | if (rc) | |
8897 | return rc; | |
8898 | ||
8899 | ioa_cfg = pci_get_drvdata(pdev); | |
8900 | rc = ipr_probe_ioa_part2(ioa_cfg); | |
8901 | ||
8902 | if (rc) { | |
8903 | __ipr_remove(pdev); | |
8904 | return rc; | |
8905 | } | |
8906 | ||
8907 | rc = scsi_add_host(ioa_cfg->host, &pdev->dev); | |
8908 | ||
8909 | if (rc) { | |
8910 | __ipr_remove(pdev); | |
8911 | return rc; | |
8912 | } | |
8913 | ||
ee959b00 | 8914 | rc = ipr_create_trace_file(&ioa_cfg->host->shost_dev.kobj, |
1da177e4 LT |
8915 | &ipr_trace_attr); |
8916 | ||
8917 | if (rc) { | |
8918 | scsi_remove_host(ioa_cfg->host); | |
8919 | __ipr_remove(pdev); | |
8920 | return rc; | |
8921 | } | |
8922 | ||
ee959b00 | 8923 | rc = ipr_create_dump_file(&ioa_cfg->host->shost_dev.kobj, |
1da177e4 LT |
8924 | &ipr_dump_attr); |
8925 | ||
8926 | if (rc) { | |
ee959b00 | 8927 | ipr_remove_trace_file(&ioa_cfg->host->shost_dev.kobj, |
1da177e4 LT |
8928 | &ipr_trace_attr); |
8929 | scsi_remove_host(ioa_cfg->host); | |
8930 | __ipr_remove(pdev); | |
8931 | return rc; | |
8932 | } | |
8933 | ||
8934 | scsi_scan_host(ioa_cfg->host); | |
8935 | ipr_scan_vsets(ioa_cfg); | |
8936 | scsi_add_device(ioa_cfg->host, IPR_IOA_BUS, IPR_IOA_TARGET, IPR_IOA_LUN); | |
8937 | ioa_cfg->allow_ml_add_del = 1; | |
11cd8f12 | 8938 | ioa_cfg->host->max_channel = IPR_VSET_BUS; |
1da177e4 LT |
8939 | schedule_work(&ioa_cfg->work_q); |
8940 | return 0; | |
8941 | } | |
8942 | ||
8943 | /** | |
8944 | * ipr_shutdown - Shutdown handler. | |
d18c3db5 | 8945 | * @pdev: pci device struct |
1da177e4 LT |
8946 | * |
8947 | * This function is invoked upon system shutdown/reboot. It will issue | |
8948 | * an adapter shutdown to the adapter to flush the write cache. | |
8949 | * | |
8950 | * Return value: | |
8951 | * none | |
8952 | **/ | |
d18c3db5 | 8953 | static void ipr_shutdown(struct pci_dev *pdev) |
1da177e4 | 8954 | { |
d18c3db5 | 8955 | struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev); |
1da177e4 LT |
8956 | unsigned long lock_flags = 0; |
8957 | ||
8958 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); | |
970ea294 BK |
8959 | while(ioa_cfg->in_reset_reload) { |
8960 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
8961 | wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload); | |
8962 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); | |
8963 | } | |
8964 | ||
1da177e4 LT |
8965 | ipr_initiate_ioa_bringdown(ioa_cfg, IPR_SHUTDOWN_NORMAL); |
8966 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); | |
8967 | wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload); | |
8968 | } | |
8969 | ||
8970 | static struct pci_device_id ipr_pci_table[] __devinitdata = { | |
8971 | { PCI_VENDOR_ID_MYLEX, PCI_DEVICE_ID_IBM_GEMSTONE, | |
6d84c944 | 8972 | PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_5702, 0, 0, 0 }, |
1da177e4 | 8973 | { PCI_VENDOR_ID_MYLEX, PCI_DEVICE_ID_IBM_GEMSTONE, |
6d84c944 | 8974 | PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_5703, 0, 0, 0 }, |
1da177e4 | 8975 | { PCI_VENDOR_ID_MYLEX, PCI_DEVICE_ID_IBM_GEMSTONE, |
6d84c944 | 8976 | PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_573D, 0, 0, 0 }, |
1da177e4 | 8977 | { PCI_VENDOR_ID_MYLEX, PCI_DEVICE_ID_IBM_GEMSTONE, |
6d84c944 | 8978 | PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_573E, 0, 0, 0 }, |
1da177e4 | 8979 | { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CITRINE, |
6d84c944 | 8980 | PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_571B, 0, 0, 0 }, |
1da177e4 | 8981 | { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CITRINE, |
6d84c944 | 8982 | PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572E, 0, 0, 0 }, |
1da177e4 | 8983 | { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CITRINE, |
6d84c944 | 8984 | PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_571A, 0, 0, 0 }, |
86f51436 | 8985 | { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CITRINE, |
5469cb5b BK |
8986 | PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_575B, 0, 0, |
8987 | IPR_USE_LONG_TRANSOP_TIMEOUT }, | |
86f51436 | 8988 | { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_OBSIDIAN, |
6d84c944 | 8989 | PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572A, 0, 0, 0 }, |
86f51436 | 8990 | { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_OBSIDIAN, |
22d2e402 BK |
8991 | PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572B, 0, 0, |
8992 | IPR_USE_LONG_TRANSOP_TIMEOUT }, | |
60e7486b | 8993 | { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_OBSIDIAN, |
5469cb5b BK |
8994 | PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_575C, 0, 0, |
8995 | IPR_USE_LONG_TRANSOP_TIMEOUT }, | |
86f51436 | 8996 | { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN, |
6d84c944 | 8997 | PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572A, 0, 0, 0 }, |
86f51436 | 8998 | { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN, |
22d2e402 BK |
8999 | PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572B, 0, 0, |
9000 | IPR_USE_LONG_TRANSOP_TIMEOUT}, | |
60e7486b | 9001 | { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN, |
5469cb5b BK |
9002 | PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_575C, 0, 0, |
9003 | IPR_USE_LONG_TRANSOP_TIMEOUT }, | |
185eb31c | 9004 | { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN_E, |
22d2e402 BK |
9005 | PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_574E, 0, 0, |
9006 | IPR_USE_LONG_TRANSOP_TIMEOUT }, | |
185eb31c BK |
9007 | { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN_E, |
9008 | PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57B3, 0, 0, 0 }, | |
b0f56d3d WB |
9009 | { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN_E, |
9010 | PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57CC, 0, 0, 0 }, | |
60e7486b | 9011 | { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN_E, |
5469cb5b | 9012 | PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57B7, 0, 0, |
463fc696 | 9013 | IPR_USE_LONG_TRANSOP_TIMEOUT | IPR_USE_PCI_WARM_RESET }, |
1da177e4 | 9014 | { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_SNIPE, |
6d84c944 | 9015 | PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_2780, 0, 0, 0 }, |
1da177e4 | 9016 | { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_SCAMP, |
6d84c944 | 9017 | PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_571E, 0, 0, 0 }, |
86f51436 | 9018 | { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_SCAMP, |
5469cb5b BK |
9019 | PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_571F, 0, 0, |
9020 | IPR_USE_LONG_TRANSOP_TIMEOUT }, | |
60e7486b | 9021 | { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_SCAMP, |
5469cb5b BK |
9022 | PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572F, 0, 0, |
9023 | IPR_USE_LONG_TRANSOP_TIMEOUT }, | |
d7b4627f WB |
9024 | { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_FPGA_E2, |
9025 | PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57B5, 0, 0, 0 }, | |
9026 | { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_FPGA_E2, | |
9027 | PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_574D, 0, 0, 0 }, | |
9028 | { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_FPGA_E2, | |
9029 | PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57B2, 0, 0, 0 }, | |
32622bde WB |
9030 | { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_FPGA_E2, |
9031 | PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57C4, 0, 0, 0 }, | |
d7b4627f WB |
9032 | { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_ASIC_E2, |
9033 | PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57B4, 0, 0, 0 }, | |
9034 | { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_ASIC_E2, | |
9035 | PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57B1, 0, 0, 0 }, | |
9036 | { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_ASIC_E2, | |
9037 | PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57C6, 0, 0, 0 }, | |
9038 | { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_ASIC_E2, | |
9039 | PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_575D, 0, 0, 0 }, | |
9040 | { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_ASIC_E2, | |
9041 | PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57CE, 0, 0, 0 }, | |
1da177e4 LT |
9042 | { } |
9043 | }; | |
9044 | MODULE_DEVICE_TABLE(pci, ipr_pci_table); | |
9045 | ||
f8a88b19 LV |
9046 | static struct pci_error_handlers ipr_err_handler = { |
9047 | .error_detected = ipr_pci_error_detected, | |
9048 | .slot_reset = ipr_pci_slot_reset, | |
9049 | }; | |
9050 | ||
1da177e4 LT |
9051 | static struct pci_driver ipr_driver = { |
9052 | .name = IPR_NAME, | |
9053 | .id_table = ipr_pci_table, | |
9054 | .probe = ipr_probe, | |
f381642d | 9055 | .remove = __devexit_p(ipr_remove), |
d18c3db5 | 9056 | .shutdown = ipr_shutdown, |
f8a88b19 | 9057 | .err_handler = &ipr_err_handler, |
1da177e4 LT |
9058 | }; |
9059 | ||
f72919ec WB |
9060 | /** |
9061 | * ipr_halt_done - Shutdown prepare completion | |
9062 | * | |
9063 | * Return value: | |
9064 | * none | |
9065 | **/ | |
9066 | static void ipr_halt_done(struct ipr_cmnd *ipr_cmd) | |
9067 | { | |
9068 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; | |
9069 | ||
9070 | list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q); | |
9071 | } | |
9072 | ||
9073 | /** | |
9074 | * ipr_halt - Issue shutdown prepare to all adapters | |
9075 | * | |
9076 | * Return value: | |
9077 | * NOTIFY_OK on success / NOTIFY_DONE on failure | |
9078 | **/ | |
9079 | static int ipr_halt(struct notifier_block *nb, ulong event, void *buf) | |
9080 | { | |
9081 | struct ipr_cmnd *ipr_cmd; | |
9082 | struct ipr_ioa_cfg *ioa_cfg; | |
9083 | unsigned long flags = 0; | |
9084 | ||
9085 | if (event != SYS_RESTART && event != SYS_HALT && event != SYS_POWER_OFF) | |
9086 | return NOTIFY_DONE; | |
9087 | ||
9088 | spin_lock(&ipr_driver_lock); | |
9089 | ||
9090 | list_for_each_entry(ioa_cfg, &ipr_ioa_head, queue) { | |
9091 | spin_lock_irqsave(ioa_cfg->host->host_lock, flags); | |
9092 | if (!ioa_cfg->allow_cmds) { | |
9093 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags); | |
9094 | continue; | |
9095 | } | |
9096 | ||
9097 | ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg); | |
9098 | ipr_cmd->ioarcb.res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE); | |
9099 | ipr_cmd->ioarcb.cmd_pkt.request_type = IPR_RQTYPE_IOACMD; | |
9100 | ipr_cmd->ioarcb.cmd_pkt.cdb[0] = IPR_IOA_SHUTDOWN; | |
9101 | ipr_cmd->ioarcb.cmd_pkt.cdb[1] = IPR_SHUTDOWN_PREPARE_FOR_NORMAL; | |
9102 | ||
9103 | ipr_do_req(ipr_cmd, ipr_halt_done, ipr_timeout, IPR_DEVICE_RESET_TIMEOUT); | |
9104 | spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags); | |
9105 | } | |
9106 | spin_unlock(&ipr_driver_lock); | |
9107 | ||
9108 | return NOTIFY_OK; | |
9109 | } | |
9110 | ||
9111 | static struct notifier_block ipr_notifier = { | |
9112 | ipr_halt, NULL, 0 | |
9113 | }; | |
9114 | ||
1da177e4 LT |
9115 | /** |
9116 | * ipr_init - Module entry point | |
9117 | * | |
9118 | * Return value: | |
9119 | * 0 on success / negative value on failure | |
9120 | **/ | |
9121 | static int __init ipr_init(void) | |
9122 | { | |
9123 | ipr_info("IBM Power RAID SCSI Device Driver version: %s %s\n", | |
9124 | IPR_DRIVER_VERSION, IPR_DRIVER_DATE); | |
9125 | ||
f72919ec | 9126 | register_reboot_notifier(&ipr_notifier); |
dcbccbde | 9127 | return pci_register_driver(&ipr_driver); |
1da177e4 LT |
9128 | } |
9129 | ||
9130 | /** | |
9131 | * ipr_exit - Module unload | |
9132 | * | |
9133 | * Module unload entry point. | |
9134 | * | |
9135 | * Return value: | |
9136 | * none | |
9137 | **/ | |
9138 | static void __exit ipr_exit(void) | |
9139 | { | |
f72919ec | 9140 | unregister_reboot_notifier(&ipr_notifier); |
1da177e4 LT |
9141 | pci_unregister_driver(&ipr_driver); |
9142 | } | |
9143 | ||
9144 | module_init(ipr_init); | |
9145 | module_exit(ipr_exit); |