1 | // SPDX-License-Identifier: GPL-2.0-or-later |
2 | /* |
3 | * ipr.c -- driver for IBM Power Linux RAID adapters |
4 | * |
5 | * Written By: Brian King <brking@us.ibm.com>, IBM Corporation |
6 | * |
7 | * Copyright (C) 2003, 2004 IBM Corporation |
8 | */ |
9 | |
10 | /* |
11 | * Notes: |
12 | * |
13 | * This driver is used to control the following SCSI adapters: |
14 | * |
15 | * IBM iSeries: 5702, 5703, 2780, 5709, 570A, 570B |
16 | * |
17 | * IBM pSeries: PCI-X Dual Channel Ultra 320 SCSI RAID Adapter |
18 | * PCI-X Dual Channel Ultra 320 SCSI Adapter |
19 | * PCI-X Dual Channel Ultra 320 SCSI RAID Enablement Card |
20 | * Embedded SCSI adapter on p615 and p655 systems |
21 | * |
22 | * Supported Hardware Features: |
23 | * - Ultra 320 SCSI controller |
24 | * - PCI-X host interface |
25 | * - Embedded PowerPC RISC Processor and Hardware XOR DMA Engine |
26 | * - Non-Volatile Write Cache |
27 | * - Supports attachment of non-RAID disks, tape, and optical devices |
28 | * - RAID Levels 0, 5, 10 |
29 | * - Hot spare |
30 | * - Background Parity Checking |
31 | * - Background Data Scrubbing |
32 | * - Ability to increase the capacity of an existing RAID 5 disk array |
33 | * by adding disks |
34 | * |
35 | * Driver Features: |
36 | * - Tagged command queuing |
37 | * - Adapter microcode download |
38 | * - PCI hot plug |
39 | * - SCSI device hot plug |
40 | * |
41 | */ |
42 | |
43 | #include <linux/fs.h> |
44 | #include <linux/init.h> |
45 | #include <linux/types.h> |
46 | #include <linux/errno.h> |
47 | #include <linux/kernel.h> |
48 | #include <linux/slab.h> |
49 | #include <linux/vmalloc.h> |
50 | #include <linux/ioport.h> |
51 | #include <linux/delay.h> |
52 | #include <linux/pci.h> |
53 | #include <linux/wait.h> |
54 | #include <linux/spinlock.h> |
55 | #include <linux/sched.h> |
56 | #include <linux/interrupt.h> |
57 | #include <linux/blkdev.h> |
58 | #include <linux/firmware.h> |
59 | #include <linux/module.h> |
60 | #include <linux/moduleparam.h> |
61 | #include <linux/hdreg.h> |
62 | #include <linux/reboot.h> |
63 | #include <linux/stringify.h> |
64 | #include <asm/io.h> |
65 | #include <asm/irq.h> |
66 | #include <asm/processor.h> |
67 | #include <scsi/scsi.h> |
68 | #include <scsi/scsi_host.h> |
69 | #include <scsi/scsi_tcq.h> |
70 | #include <scsi/scsi_eh.h> |
71 | #include <scsi/scsi_cmnd.h> |
72 | #include "ipr.h" |
73 | |
74 | /* |
75 | * Global Data |
76 | */ |
77 | static LIST_HEAD(ipr_ioa_head); |
78 | static unsigned int ipr_log_level = IPR_DEFAULT_LOG_LEVEL; |
79 | static unsigned int ipr_max_speed = 1; |
80 | static int ipr_testmode = 0; |
81 | static unsigned int ipr_fastfail = 0; |
82 | static unsigned int ipr_transop_timeout = 0; |
83 | static unsigned int ipr_debug = 0; |
84 | static unsigned int ipr_max_devs = IPR_DEFAULT_SIS64_DEVS; |
85 | static unsigned int ipr_dual_ioa_raid = 1; |
86 | static unsigned int ipr_number_of_msix = 16; |
87 | static unsigned int ipr_fast_reboot; |
88 | static DEFINE_SPINLOCK(ipr_driver_lock); |
89 | |
90 | /* This table describes the differences between DMA controller chips */ |
91 | static const struct ipr_chip_cfg_t ipr_chip_cfg[] = { |
92 | { /* Gemstone, Citrine, Obsidian, and Obsidian-E */ |
93 | .mailbox = 0x0042C, |
94 | .max_cmds = 100, |
95 | .cache_line_size = 0x20, |
96 | .clear_isr = 1, |
97 | .iopoll_weight = 0, |
98 | { |
99 | .set_interrupt_mask_reg = 0x0022C, |
100 | .clr_interrupt_mask_reg = 0x00230, |
101 | .clr_interrupt_mask_reg32 = 0x00230, |
102 | .sense_interrupt_mask_reg = 0x0022C, |
103 | .sense_interrupt_mask_reg32 = 0x0022C, |
104 | .clr_interrupt_reg = 0x00228, |
105 | .clr_interrupt_reg32 = 0x00228, |
106 | .sense_interrupt_reg = 0x00224, |
107 | .sense_interrupt_reg32 = 0x00224, |
108 | .ioarrin_reg = 0x00404, |
109 | .sense_uproc_interrupt_reg = 0x00214, |
110 | .sense_uproc_interrupt_reg32 = 0x00214, |
111 | .set_uproc_interrupt_reg = 0x00214, |
112 | .set_uproc_interrupt_reg32 = 0x00214, |
113 | .clr_uproc_interrupt_reg = 0x00218, |
114 | .clr_uproc_interrupt_reg32 = 0x00218 |
115 | } |
116 | }, |
117 | { /* Snipe and Scamp */ |
118 | .mailbox = 0x0052C, |
119 | .max_cmds = 100, |
120 | .cache_line_size = 0x20, |
121 | .clear_isr = 1, |
122 | .iopoll_weight = 0, |
123 | { |
124 | .set_interrupt_mask_reg = 0x00288, |
125 | .clr_interrupt_mask_reg = 0x0028C, |
126 | .clr_interrupt_mask_reg32 = 0x0028C, |
127 | .sense_interrupt_mask_reg = 0x00288, |
128 | .sense_interrupt_mask_reg32 = 0x00288, |
129 | .clr_interrupt_reg = 0x00284, |
130 | .clr_interrupt_reg32 = 0x00284, |
131 | .sense_interrupt_reg = 0x00280, |
132 | .sense_interrupt_reg32 = 0x00280, |
133 | .ioarrin_reg = 0x00504, |
134 | .sense_uproc_interrupt_reg = 0x00290, |
135 | .sense_uproc_interrupt_reg32 = 0x00290, |
136 | .set_uproc_interrupt_reg = 0x00290, |
137 | .set_uproc_interrupt_reg32 = 0x00290, |
138 | .clr_uproc_interrupt_reg = 0x00294, |
139 | .clr_uproc_interrupt_reg32 = 0x00294 |
140 | } |
141 | }, |
142 | { /* CRoC */ |
143 | .mailbox = 0x00044, |
144 | .max_cmds = 1000, |
145 | .cache_line_size = 0x20, |
146 | .clear_isr = 0, |
147 | .iopoll_weight = 64, |
148 | { |
149 | .set_interrupt_mask_reg = 0x00010, |
150 | .clr_interrupt_mask_reg = 0x00018, |
151 | .clr_interrupt_mask_reg32 = 0x0001C, |
152 | .sense_interrupt_mask_reg = 0x00010, |
153 | .sense_interrupt_mask_reg32 = 0x00014, |
154 | .clr_interrupt_reg = 0x00008, |
155 | .clr_interrupt_reg32 = 0x0000C, |
156 | .sense_interrupt_reg = 0x00000, |
157 | .sense_interrupt_reg32 = 0x00004, |
158 | .ioarrin_reg = 0x00070, |
159 | .sense_uproc_interrupt_reg = 0x00020, |
160 | .sense_uproc_interrupt_reg32 = 0x00024, |
161 | .set_uproc_interrupt_reg = 0x00020, |
162 | .set_uproc_interrupt_reg32 = 0x00024, |
163 | .clr_uproc_interrupt_reg = 0x00028, |
164 | .clr_uproc_interrupt_reg32 = 0x0002C, |
165 | .init_feedback_reg = 0x0005C, |
166 | .dump_addr_reg = 0x00064, |
167 | .dump_data_reg = 0x00068, |
168 | .endian_swap_reg = 0x00084 |
169 | } |
170 | }, |
171 | }; |
172 | |
173 | static const struct ipr_chip_t ipr_chip[] = { |
174 | { PCI_VENDOR_ID_MYLEX, PCI_DEVICE_ID_IBM_GEMSTONE, false, IPR_SIS32, IPR_PCI_CFG, &ipr_chip_cfg[0] }, |
175 | { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CITRINE, false, IPR_SIS32, IPR_PCI_CFG, &ipr_chip_cfg[0] }, |
176 | { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_OBSIDIAN, false, IPR_SIS32, IPR_PCI_CFG, &ipr_chip_cfg[0] }, |
177 | { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN, false, IPR_SIS32, IPR_PCI_CFG, &ipr_chip_cfg[0] }, |
178 | { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN_E, true, IPR_SIS32, IPR_PCI_CFG, &ipr_chip_cfg[0] }, |
179 | { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_SNIPE, false, IPR_SIS32, IPR_PCI_CFG, &ipr_chip_cfg[1] }, |
180 | { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_SCAMP, false, IPR_SIS32, IPR_PCI_CFG, &ipr_chip_cfg[1] }, |
181 | { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_FPGA_E2, true, IPR_SIS64, IPR_MMIO, &ipr_chip_cfg[2] }, |
182 | { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE, true, IPR_SIS64, IPR_MMIO, &ipr_chip_cfg[2] }, |
183 | { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_RATTLESNAKE, true, IPR_SIS64, IPR_MMIO, &ipr_chip_cfg[2] } |
184 | }; |
185 | |
186 | static int ipr_max_bus_speeds[] = { |
187 | IPR_80MBs_SCSI_RATE, IPR_U160_SCSI_RATE, IPR_U320_SCSI_RATE |
188 | }; |
189 | |
190 | MODULE_AUTHOR("Brian King <brking@us.ibm.com>" ); |
191 | MODULE_DESCRIPTION("IBM Power RAID SCSI Adapter Driver" ); |
192 | module_param_named(max_speed, ipr_max_speed, uint, 0); |
193 | MODULE_PARM_DESC(max_speed, "Maximum bus speed (0-2). Default: 1=U160. Speeds: 0=80 MB/s, 1=U160, 2=U320" ); |
194 | module_param_named(log_level, ipr_log_level, uint, 0); |
195 | MODULE_PARM_DESC(log_level, "Set to 0 - 4 for increasing verbosity of device driver" ); |
196 | module_param_named(testmode, ipr_testmode, int, 0); |
197 | MODULE_PARM_DESC(testmode, "DANGEROUS!!! Allows unsupported configurations" ); |
198 | module_param_named(fastfail, ipr_fastfail, int, S_IRUGO | S_IWUSR); |
199 | MODULE_PARM_DESC(fastfail, "Reduce timeouts and retries" ); |
200 | module_param_named(transop_timeout, ipr_transop_timeout, int, 0); |
201 | MODULE_PARM_DESC(transop_timeout, "Time in seconds to wait for adapter to come operational (default: 300)" ); |
202 | module_param_named(debug, ipr_debug, int, S_IRUGO | S_IWUSR); |
203 | MODULE_PARM_DESC(debug, "Enable device driver debugging logging. Set to 1 to enable. (default: 0)" ); |
204 | module_param_named(dual_ioa_raid, ipr_dual_ioa_raid, int, 0); |
205 | MODULE_PARM_DESC(dual_ioa_raid, "Enable dual adapter RAID support. Set to 1 to enable. (default: 1)" ); |
206 | module_param_named(max_devs, ipr_max_devs, int, 0); |
207 | MODULE_PARM_DESC(max_devs, "Specify the maximum number of physical devices. " |
208 | "[Default=" __stringify(IPR_DEFAULT_SIS64_DEVS) "]" ); |
209 | module_param_named(number_of_msix, ipr_number_of_msix, int, 0); |
210 | MODULE_PARM_DESC(number_of_msix, "Specify the number of MSIX interrupts to use on capable adapters (1 - 16). (default:16)" ); |
211 | module_param_named(fast_reboot, ipr_fast_reboot, int, S_IRUGO | S_IWUSR); |
212 | MODULE_PARM_DESC(fast_reboot, "Skip adapter shutdown during reboot. Set to 1 to enable. (default: 0)" ); |
213 | MODULE_LICENSE("GPL" ); |
214 | MODULE_VERSION(IPR_DRIVER_VERSION); |
215 | |
216 | /* A constant array of IOASCs/URCs/Error Messages */ |
217 | static const |
218 | struct ipr_error_table_t ipr_error_table[] = { |
219 | {0x00000000, 1, IPR_DEFAULT_LOG_LEVEL, |
220 | "8155: An unknown error was received" }, |
221 | {0x00330000, 0, 0, |
222 | "Soft underlength error" }, |
223 | {0x005A0000, 0, 0, |
224 | "Command to be cancelled not found" }, |
225 | {0x00808000, 0, 0, |
226 | "Qualified success" }, |
227 | {0x01080000, 1, IPR_DEFAULT_LOG_LEVEL, |
228 | "FFFE: Soft device bus error recovered by the IOA" }, |
229 | {0x01088100, 0, IPR_DEFAULT_LOG_LEVEL, |
230 | "4101: Soft device bus fabric error" }, |
231 | {0x01100100, 0, IPR_DEFAULT_LOG_LEVEL, |
232 | "FFFC: Logical block guard error recovered by the device" }, |
233 | {0x01100300, 0, IPR_DEFAULT_LOG_LEVEL, |
234 | "FFFC: Logical block reference tag error recovered by the device" }, |
235 | {0x01108300, 0, IPR_DEFAULT_LOG_LEVEL, |
236 | "4171: Recovered scatter list tag / sequence number error" }, |
237 | {0x01109000, 0, IPR_DEFAULT_LOG_LEVEL, |
238 | "FF3D: Recovered logical block CRC error on IOA to Host transfer" }, |
239 | {0x01109200, 0, IPR_DEFAULT_LOG_LEVEL, |
240 | "4171: Recovered logical block sequence number error on IOA to Host transfer" }, |
241 | {0x0110A000, 0, IPR_DEFAULT_LOG_LEVEL, |
242 | "FFFD: Recovered logical block reference tag error detected by the IOA" }, |
243 | {0x0110A100, 0, IPR_DEFAULT_LOG_LEVEL, |
244 | "FFFD: Logical block guard error recovered by the IOA" }, |
245 | {0x01170600, 0, IPR_DEFAULT_LOG_LEVEL, |
246 | "FFF9: Device sector reassign successful" }, |
247 | {0x01170900, 0, IPR_DEFAULT_LOG_LEVEL, |
248 | "FFF7: Media error recovered by device rewrite procedures" }, |
249 | {0x01180200, 0, IPR_DEFAULT_LOG_LEVEL, |
250 | "7001: IOA sector reassignment successful" }, |
251 | {0x01180500, 0, IPR_DEFAULT_LOG_LEVEL, |
252 | "FFF9: Soft media error. Sector reassignment recommended" }, |
253 | {0x01180600, 0, IPR_DEFAULT_LOG_LEVEL, |
254 | "FFF7: Media error recovered by IOA rewrite procedures" }, |
255 | {0x01418000, 0, IPR_DEFAULT_LOG_LEVEL, |
256 | "FF3D: Soft PCI bus error recovered by the IOA" }, |
257 | {0x01440000, 1, IPR_DEFAULT_LOG_LEVEL, |
258 | "FFF6: Device hardware error recovered by the IOA" }, |
259 | {0x01448100, 0, IPR_DEFAULT_LOG_LEVEL, |
260 | "FFF6: Device hardware error recovered by the device" }, |
261 | {0x01448200, 1, IPR_DEFAULT_LOG_LEVEL, |
262 | "FF3D: Soft IOA error recovered by the IOA" }, |
263 | {0x01448300, 0, IPR_DEFAULT_LOG_LEVEL, |
264 | "FFFA: Undefined device response recovered by the IOA" }, |
265 | {0x014A0000, 1, IPR_DEFAULT_LOG_LEVEL, |
266 | "FFF6: Device bus error, message or command phase" }, |
267 | {0x014A8000, 0, IPR_DEFAULT_LOG_LEVEL, |
268 | "FFFE: Task Management Function failed" }, |
269 | {0x015D0000, 0, IPR_DEFAULT_LOG_LEVEL, |
270 | "FFF6: Failure prediction threshold exceeded" }, |
271 | {0x015D9200, 0, IPR_DEFAULT_LOG_LEVEL, |
272 | "8009: Impending cache battery pack failure" }, |
273 | {0x02040100, 0, 0, |
274 | "Logical Unit in process of becoming ready" }, |
275 | {0x02040200, 0, 0, |
276 | "Initializing command required" }, |
277 | {0x02040400, 0, 0, |
278 | "34FF: Disk device format in progress" }, |
279 | {0x02040C00, 0, 0, |
280 | "Logical unit not accessible, target port in unavailable state" }, |
281 | {0x02048000, 0, IPR_DEFAULT_LOG_LEVEL, |
282 | "9070: IOA requested reset" }, |
283 | {0x023F0000, 0, 0, |
284 | "Synchronization required" }, |
285 | {0x02408500, 0, 0, |
286 | "IOA microcode download required" }, |
287 | {0x02408600, 0, 0, |
288 | "Device bus connection is prohibited by host" }, |
289 | {0x024E0000, 0, 0, |
290 | "No ready, IOA shutdown" }, |
291 | {0x025A0000, 0, 0, |
292 | "Not ready, IOA has been shutdown" }, |
293 | {0x02670100, 0, IPR_DEFAULT_LOG_LEVEL, |
294 | "3020: Storage subsystem configuration error" }, |
295 | {0x03110B00, 0, 0, |
296 | "FFF5: Medium error, data unreadable, recommend reassign" }, |
297 | {0x03110C00, 0, 0, |
298 | "7000: Medium error, data unreadable, do not reassign" }, |
299 | {0x03310000, 0, IPR_DEFAULT_LOG_LEVEL, |
300 | "FFF3: Disk media format bad" }, |
301 | {0x04050000, 0, IPR_DEFAULT_LOG_LEVEL, |
302 | "3002: Addressed device failed to respond to selection" }, |
303 | {0x04080000, 1, IPR_DEFAULT_LOG_LEVEL, |
304 | "3100: Device bus error" }, |
305 | {0x04080100, 0, IPR_DEFAULT_LOG_LEVEL, |
306 | "3109: IOA timed out a device command" }, |
307 | {0x04088000, 0, 0, |
308 | "3120: SCSI bus is not operational" }, |
309 | {0x04088100, 0, IPR_DEFAULT_LOG_LEVEL, |
310 | "4100: Hard device bus fabric error" }, |
311 | {0x04100100, 0, IPR_DEFAULT_LOG_LEVEL, |
312 | "310C: Logical block guard error detected by the device" }, |
313 | {0x04100300, 0, IPR_DEFAULT_LOG_LEVEL, |
314 | "310C: Logical block reference tag error detected by the device" }, |
315 | {0x04108300, 1, IPR_DEFAULT_LOG_LEVEL, |
316 | "4170: Scatter list tag / sequence number error" }, |
317 | {0x04109000, 1, IPR_DEFAULT_LOG_LEVEL, |
318 | "8150: Logical block CRC error on IOA to Host transfer" }, |
319 | {0x04109200, 1, IPR_DEFAULT_LOG_LEVEL, |
320 | "4170: Logical block sequence number error on IOA to Host transfer" }, |
321 | {0x0410A000, 0, IPR_DEFAULT_LOG_LEVEL, |
322 | "310D: Logical block reference tag error detected by the IOA" }, |
323 | {0x0410A100, 0, IPR_DEFAULT_LOG_LEVEL, |
324 | "310D: Logical block guard error detected by the IOA" }, |
325 | {0x04118000, 0, IPR_DEFAULT_LOG_LEVEL, |
326 | "9000: IOA reserved area data check" }, |
327 | {0x04118100, 0, IPR_DEFAULT_LOG_LEVEL, |
328 | "9001: IOA reserved area invalid data pattern" }, |
329 | {0x04118200, 0, IPR_DEFAULT_LOG_LEVEL, |
330 | "9002: IOA reserved area LRC error" }, |
331 | {0x04118300, 1, IPR_DEFAULT_LOG_LEVEL, |
332 | "Hardware Error, IOA metadata access error" }, |
333 | {0x04320000, 0, IPR_DEFAULT_LOG_LEVEL, |
334 | "102E: Out of alternate sectors for disk storage" }, |
335 | {0x04330000, 1, IPR_DEFAULT_LOG_LEVEL, |
336 | "FFF4: Data transfer underlength error" }, |
337 | {0x04338000, 1, IPR_DEFAULT_LOG_LEVEL, |
338 | "FFF4: Data transfer overlength error" }, |
339 | {0x043E0100, 0, IPR_DEFAULT_LOG_LEVEL, |
340 | "3400: Logical unit failure" }, |
341 | {0x04408500, 0, IPR_DEFAULT_LOG_LEVEL, |
342 | "FFF4: Device microcode is corrupt" }, |
343 | {0x04418000, 1, IPR_DEFAULT_LOG_LEVEL, |
344 | "8150: PCI bus error" }, |
345 | {0x04430000, 1, 0, |
346 | "Unsupported device bus message received" }, |
347 | {0x04440000, 1, IPR_DEFAULT_LOG_LEVEL, |
348 | "FFF4: Disk device problem" }, |
349 | {0x04448200, 1, IPR_DEFAULT_LOG_LEVEL, |
350 | "8150: Permanent IOA failure" }, |
351 | {0x04448300, 0, IPR_DEFAULT_LOG_LEVEL, |
352 | "3010: Disk device returned wrong response to IOA" }, |
353 | {0x04448400, 0, IPR_DEFAULT_LOG_LEVEL, |
354 | "8151: IOA microcode error" }, |
355 | {0x04448500, 0, 0, |
356 | "Device bus status error" }, |
357 | {0x04448600, 0, IPR_DEFAULT_LOG_LEVEL, |
358 | "8157: IOA error requiring IOA reset to recover" }, |
359 | {0x04448700, 0, 0, |
360 | "ATA device status error" }, |
361 | {0x04490000, 0, 0, |
362 | "Message reject received from the device" }, |
363 | {0x04449200, 0, IPR_DEFAULT_LOG_LEVEL, |
364 | "8008: A permanent cache battery pack failure occurred" }, |
365 | {0x0444A000, 0, IPR_DEFAULT_LOG_LEVEL, |
366 | "9090: Disk unit has been modified after the last known status" }, |
367 | {0x0444A200, 0, IPR_DEFAULT_LOG_LEVEL, |
368 | "9081: IOA detected device error" }, |
369 | {0x0444A300, 0, IPR_DEFAULT_LOG_LEVEL, |
370 | "9082: IOA detected device error" }, |
371 | {0x044A0000, 1, IPR_DEFAULT_LOG_LEVEL, |
372 | "3110: Device bus error, message or command phase" }, |
373 | {0x044A8000, 1, IPR_DEFAULT_LOG_LEVEL, |
374 | "3110: SAS Command / Task Management Function failed" }, |
375 | {0x04670400, 0, IPR_DEFAULT_LOG_LEVEL, |
376 | "9091: Incorrect hardware configuration change has been detected" }, |
377 | {0x04678000, 0, IPR_DEFAULT_LOG_LEVEL, |
378 | "9073: Invalid multi-adapter configuration" }, |
379 | {0x04678100, 0, IPR_DEFAULT_LOG_LEVEL, |
380 | "4010: Incorrect connection between cascaded expanders" }, |
381 | {0x04678200, 0, IPR_DEFAULT_LOG_LEVEL, |
382 | "4020: Connections exceed IOA design limits" }, |
383 | {0x04678300, 0, IPR_DEFAULT_LOG_LEVEL, |
384 | "4030: Incorrect multipath connection" }, |
385 | {0x04679000, 0, IPR_DEFAULT_LOG_LEVEL, |
386 | "4110: Unsupported enclosure function" }, |
387 | {0x04679800, 0, IPR_DEFAULT_LOG_LEVEL, |
388 | "4120: SAS cable VPD cannot be read" }, |
389 | {0x046E0000, 0, IPR_DEFAULT_LOG_LEVEL, |
390 | "FFF4: Command to logical unit failed" }, |
391 | {0x05240000, 1, 0, |
392 | "Illegal request, invalid request type or request packet" }, |
393 | {0x05250000, 0, 0, |
394 | "Illegal request, invalid resource handle" }, |
395 | {0x05258000, 0, 0, |
396 | "Illegal request, commands not allowed to this device" }, |
397 | {0x05258100, 0, 0, |
398 | "Illegal request, command not allowed to a secondary adapter" }, |
399 | {0x05258200, 0, 0, |
400 | "Illegal request, command not allowed to a non-optimized resource" }, |
401 | {0x05260000, 0, 0, |
402 | "Illegal request, invalid field in parameter list" }, |
403 | {0x05260100, 0, 0, |
404 | "Illegal request, parameter not supported" }, |
405 | {0x05260200, 0, 0, |
406 | "Illegal request, parameter value invalid" }, |
407 | {0x052C0000, 0, 0, |
408 | "Illegal request, command sequence error" }, |
409 | {0x052C8000, 1, 0, |
410 | "Illegal request, dual adapter support not enabled" }, |
411 | {0x052C8100, 1, 0, |
412 | "Illegal request, another cable connector was physically disabled" }, |
413 | {0x054E8000, 1, 0, |
414 | "Illegal request, inconsistent group id/group count" }, |
415 | {0x06040500, 0, IPR_DEFAULT_LOG_LEVEL, |
416 | "9031: Array protection temporarily suspended, protection resuming" }, |
417 | {0x06040600, 0, IPR_DEFAULT_LOG_LEVEL, |
418 | "9040: Array protection temporarily suspended, protection resuming" }, |
419 | {0x060B0100, 0, IPR_DEFAULT_LOG_LEVEL, |
420 | "4080: IOA exceeded maximum operating temperature" }, |
421 | {0x060B8000, 0, IPR_DEFAULT_LOG_LEVEL, |
422 | "4085: Service required" }, |
423 | {0x060B8100, 0, IPR_DEFAULT_LOG_LEVEL, |
424 | "4086: SAS Adapter Hardware Configuration Error" }, |
425 | {0x06288000, 0, IPR_DEFAULT_LOG_LEVEL, |
426 | "3140: Device bus not ready to ready transition" }, |
427 | {0x06290000, 0, IPR_DEFAULT_LOG_LEVEL, |
428 | "FFFB: SCSI bus was reset" }, |
429 | {0x06290500, 0, 0, |
430 | "FFFE: SCSI bus transition to single ended" }, |
431 | {0x06290600, 0, 0, |
432 | "FFFE: SCSI bus transition to LVD" }, |
433 | {0x06298000, 0, IPR_DEFAULT_LOG_LEVEL, |
434 | "FFFB: SCSI bus was reset by another initiator" }, |
435 | {0x063F0300, 0, IPR_DEFAULT_LOG_LEVEL, |
436 | "3029: A device replacement has occurred" }, |
437 | {0x063F8300, 0, IPR_DEFAULT_LOG_LEVEL, |
438 | "4102: Device bus fabric performance degradation" }, |
439 | {0x064C8000, 0, IPR_DEFAULT_LOG_LEVEL, |
440 | "9051: IOA cache data exists for a missing or failed device" }, |
441 | {0x064C8100, 0, IPR_DEFAULT_LOG_LEVEL, |
442 | "9055: Auxiliary cache IOA contains cache data needed by the primary IOA" }, |
443 | {0x06670100, 0, IPR_DEFAULT_LOG_LEVEL, |
444 | "9025: Disk unit is not supported at its physical location" }, |
445 | {0x06670600, 0, IPR_DEFAULT_LOG_LEVEL, |
446 | "3020: IOA detected a SCSI bus configuration error" }, |
447 | {0x06678000, 0, IPR_DEFAULT_LOG_LEVEL, |
448 | "3150: SCSI bus configuration error" }, |
449 | {0x06678100, 0, IPR_DEFAULT_LOG_LEVEL, |
450 | "9074: Asymmetric advanced function disk configuration" }, |
451 | {0x06678300, 0, IPR_DEFAULT_LOG_LEVEL, |
452 | "4040: Incomplete multipath connection between IOA and enclosure" }, |
453 | {0x06678400, 0, IPR_DEFAULT_LOG_LEVEL, |
454 | "4041: Incomplete multipath connection between enclosure and device" }, |
455 | {0x06678500, 0, IPR_DEFAULT_LOG_LEVEL, |
456 | "9075: Incomplete multipath connection between IOA and remote IOA" }, |
457 | {0x06678600, 0, IPR_DEFAULT_LOG_LEVEL, |
458 | "9076: Configuration error, missing remote IOA" }, |
459 | {0x06679100, 0, IPR_DEFAULT_LOG_LEVEL, |
460 | "4050: Enclosure does not support a required multipath function" }, |
461 | {0x06679800, 0, IPR_DEFAULT_LOG_LEVEL, |
462 | "4121: Configuration error, required cable is missing" }, |
463 | {0x06679900, 0, IPR_DEFAULT_LOG_LEVEL, |
464 | "4122: Cable is not plugged into the correct location on remote IOA" }, |
465 | {0x06679A00, 0, IPR_DEFAULT_LOG_LEVEL, |
466 | "4123: Configuration error, invalid cable vital product data" }, |
467 | {0x06679B00, 0, IPR_DEFAULT_LOG_LEVEL, |
468 | "4124: Configuration error, both cable ends are plugged into the same IOA" }, |
469 | {0x06690000, 0, IPR_DEFAULT_LOG_LEVEL, |
470 | "4070: Logically bad block written on device" }, |
471 | {0x06690200, 0, IPR_DEFAULT_LOG_LEVEL, |
472 | "9041: Array protection temporarily suspended" }, |
473 | {0x06698200, 0, IPR_DEFAULT_LOG_LEVEL, |
474 | "9042: Corrupt array parity detected on specified device" }, |
475 | {0x066B0200, 0, IPR_DEFAULT_LOG_LEVEL, |
476 | "9030: Array no longer protected due to missing or failed disk unit" }, |
477 | {0x066B8000, 0, IPR_DEFAULT_LOG_LEVEL, |
478 | "9071: Link operational transition" }, |
479 | {0x066B8100, 0, IPR_DEFAULT_LOG_LEVEL, |
480 | "9072: Link not operational transition" }, |
481 | {0x066B8200, 0, IPR_DEFAULT_LOG_LEVEL, |
482 | "9032: Array exposed but still protected" }, |
483 | {0x066B8300, 0, IPR_DEBUG_LOG_LEVEL, |
484 | "70DD: Device forced failed by disrupt device command" }, |
485 | {0x066B9100, 0, IPR_DEFAULT_LOG_LEVEL, |
486 | "4061: Multipath redundancy level got better" }, |
487 | {0x066B9200, 0, IPR_DEFAULT_LOG_LEVEL, |
488 | "4060: Multipath redundancy level got worse" }, |
489 | {0x06808100, 0, IPR_DEBUG_LOG_LEVEL, |
490 | "9083: Device raw mode enabled" }, |
491 | {0x06808200, 0, IPR_DEBUG_LOG_LEVEL, |
492 | "9084: Device raw mode disabled" }, |
493 | {0x07270000, 0, 0, |
494 | "Failure due to other device" }, |
495 | {0x07278000, 0, IPR_DEFAULT_LOG_LEVEL, |
496 | "9008: IOA does not support functions expected by devices" }, |
497 | {0x07278100, 0, IPR_DEFAULT_LOG_LEVEL, |
498 | "9010: Cache data associated with attached devices cannot be found" }, |
499 | {0x07278200, 0, IPR_DEFAULT_LOG_LEVEL, |
500 | "9011: Cache data belongs to devices other than those attached" }, |
501 | {0x07278400, 0, IPR_DEFAULT_LOG_LEVEL, |
502 | "9020: Array missing 2 or more devices with only 1 device present" }, |
503 | {0x07278500, 0, IPR_DEFAULT_LOG_LEVEL, |
504 | "9021: Array missing 2 or more devices with 2 or more devices present" }, |
505 | {0x07278600, 0, IPR_DEFAULT_LOG_LEVEL, |
506 | "9022: Exposed array is missing a required device" }, |
507 | {0x07278700, 0, IPR_DEFAULT_LOG_LEVEL, |
508 | "9023: Array member(s) not at required physical locations" }, |
509 | {0x07278800, 0, IPR_DEFAULT_LOG_LEVEL, |
510 | "9024: Array not functional due to present hardware configuration" }, |
511 | {0x07278900, 0, IPR_DEFAULT_LOG_LEVEL, |
512 | "9026: Array not functional due to present hardware configuration" }, |
513 | {0x07278A00, 0, IPR_DEFAULT_LOG_LEVEL, |
514 | "9027: Array is missing a device and parity is out of sync" }, |
515 | {0x07278B00, 0, IPR_DEFAULT_LOG_LEVEL, |
516 | "9028: Maximum number of arrays already exist" }, |
517 | {0x07278C00, 0, IPR_DEFAULT_LOG_LEVEL, |
518 | "9050: Required cache data cannot be located for a disk unit" }, |
519 | {0x07278D00, 0, IPR_DEFAULT_LOG_LEVEL, |
520 | "9052: Cache data exists for a device that has been modified" }, |
521 | {0x07278F00, 0, IPR_DEFAULT_LOG_LEVEL, |
522 | "9054: IOA resources not available due to previous problems" }, |
523 | {0x07279100, 0, IPR_DEFAULT_LOG_LEVEL, |
524 | "9092: Disk unit requires initialization before use" }, |
525 | {0x07279200, 0, IPR_DEFAULT_LOG_LEVEL, |
526 | "9029: Incorrect hardware configuration change has been detected" }, |
527 | {0x07279600, 0, IPR_DEFAULT_LOG_LEVEL, |
528 | "9060: One or more disk pairs are missing from an array" }, |
529 | {0x07279700, 0, IPR_DEFAULT_LOG_LEVEL, |
530 | "9061: One or more disks are missing from an array" }, |
531 | {0x07279800, 0, IPR_DEFAULT_LOG_LEVEL, |
532 | "9062: One or more disks are missing from an array" }, |
533 | {0x07279900, 0, IPR_DEFAULT_LOG_LEVEL, |
534 | "9063: Maximum number of functional arrays has been exceeded" }, |
535 | {0x07279A00, 0, 0, |
536 | "Data protect, other volume set problem" }, |
537 | {0x0B260000, 0, 0, |
538 | "Aborted command, invalid descriptor" }, |
539 | {0x0B3F9000, 0, 0, |
540 | "Target operating conditions have changed, dual adapter takeover" }, |
541 | {0x0B530200, 0, 0, |
542 | "Aborted command, medium removal prevented" }, |
543 | {0x0B5A0000, 0, 0, |
544 | "Command terminated by host" }, |
545 | {0x0B5B8000, 0, 0, |
546 | "Aborted command, command terminated by host" } |
547 | }; |
548 | |
549 | static const struct ipr_ses_table_entry ipr_ses_table[] = { |
550 | { "2104-DL1 " , "XXXXXXXXXXXXXXXX" , 80 }, |
551 | { "2104-TL1 " , "XXXXXXXXXXXXXXXX" , 80 }, |
552 | { "HSBP07M P U2SCSI" , "XXXXXXXXXXXXXXXX" , 80 }, /* Hidive 7 slot */ |
553 | { "HSBP05M P U2SCSI" , "XXXXXXXXXXXXXXXX" , 80 }, /* Hidive 5 slot */ |
554 | { "HSBP05M S U2SCSI" , "XXXXXXXXXXXXXXXX" , 80 }, /* Bowtie */ |
555 | { "HSBP06E ASU2SCSI" , "XXXXXXXXXXXXXXXX" , 80 }, /* MartinFenning */ |
556 | { "2104-DU3 " , "XXXXXXXXXXXXXXXX" , 160 }, |
557 | { "2104-TU3 " , "XXXXXXXXXXXXXXXX" , 160 }, |
558 | { "HSBP04C RSU2SCSI" , "XXXXXXX*XXXXXXXX" , 160 }, |
559 | { "HSBP06E RSU2SCSI" , "XXXXXXX*XXXXXXXX" , 160 }, |
560 | { "St V1S2 " , "XXXXXXXXXXXXXXXX" , 160 }, |
561 | { "HSBPD4M PU3SCSI" , "XXXXXXX*XXXXXXXX" , 160 }, |
562 | { "VSBPD1H U3SCSI" , "XXXXXXX*XXXXXXXX" , 160 } |
563 | }; |
564 | |
565 | /* |
566 | * Function Prototypes |
567 | */ |
568 | static int ipr_reset_alert(struct ipr_cmnd *); |
569 | static void ipr_process_ccn(struct ipr_cmnd *); |
570 | static void ipr_process_error(struct ipr_cmnd *); |
571 | static void ipr_reset_ioa_job(struct ipr_cmnd *); |
572 | static void ipr_initiate_ioa_reset(struct ipr_ioa_cfg *, |
573 | enum ipr_shutdown_type); |
574 | |
575 | #ifdef CONFIG_SCSI_IPR_TRACE |
576 | /** |
577 | * ipr_trc_hook - Add a trace entry to the driver trace |
578 | * @ipr_cmd: ipr command struct |
579 | * @type: trace type |
580 | * @add_data: additional data |
581 | * |
582 | * Return value: |
583 | * none |
584 | **/ |
585 | static void ipr_trc_hook(struct ipr_cmnd *ipr_cmd, |
586 | u8 type, u32 add_data) |
587 | { |
588 | struct ipr_trace_entry *trace_entry; |
589 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; |
590 | unsigned int trace_index; |
591 | |
592 | trace_index = atomic_add_return(i: 1, v: &ioa_cfg->trace_index) & IPR_TRACE_INDEX_MASK; |
593 | trace_entry = &ioa_cfg->trace[trace_index]; |
594 | trace_entry->time = jiffies; |
595 | trace_entry->op_code = ipr_cmd->ioarcb.cmd_pkt.cdb[0]; |
596 | trace_entry->type = type; |
597 | trace_entry->cmd_index = ipr_cmd->cmd_index & 0xff; |
598 | trace_entry->res_handle = ipr_cmd->ioarcb.res_handle; |
599 | trace_entry->u.add_data = add_data; |
600 | wmb(); |
601 | } |
602 | #else |
603 | #define ipr_trc_hook(ipr_cmd, type, add_data) do { } while (0) |
604 | #endif |
605 | |
606 | /** |
607 | * ipr_lock_and_done - Acquire lock and complete command |
608 | * @ipr_cmd: ipr command struct |
609 | * |
610 | * Return value: |
611 | * none |
612 | **/ |
613 | static void ipr_lock_and_done(struct ipr_cmnd *ipr_cmd) |
614 | { |
615 | unsigned long lock_flags; |
616 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; |
617 | |
618 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); |
619 | ipr_cmd->done(ipr_cmd); |
620 | spin_unlock_irqrestore(lock: ioa_cfg->host->host_lock, flags: lock_flags); |
621 | } |
622 | |
623 | /** |
624 | * ipr_reinit_ipr_cmnd - Re-initialize an IPR Cmnd block for reuse |
625 | * @ipr_cmd: ipr command struct |
626 | * |
627 | * Return value: |
628 | * none |
629 | **/ |
630 | static void ipr_reinit_ipr_cmnd(struct ipr_cmnd *ipr_cmd) |
631 | { |
632 | struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb; |
633 | struct ipr_ioasa *ioasa = &ipr_cmd->s.ioasa; |
634 | dma_addr_t dma_addr = ipr_cmd->dma_addr; |
635 | int hrrq_id; |
636 | |
637 | hrrq_id = ioarcb->cmd_pkt.hrrq_id; |
638 | memset(&ioarcb->cmd_pkt, 0, sizeof(struct ipr_cmd_pkt)); |
639 | ioarcb->cmd_pkt.hrrq_id = hrrq_id; |
640 | ioarcb->data_transfer_length = 0; |
641 | ioarcb->read_data_transfer_length = 0; |
642 | ioarcb->ioadl_len = 0; |
643 | ioarcb->read_ioadl_len = 0; |
644 | |
645 | if (ipr_cmd->ioa_cfg->sis64) { |
646 | ioarcb->u.sis64_addr_data.data_ioadl_addr = |
647 | cpu_to_be64(dma_addr + offsetof(struct ipr_cmnd, i.ioadl64)); |
648 | } else { |
649 | ioarcb->write_ioadl_addr = |
650 | cpu_to_be32(dma_addr + offsetof(struct ipr_cmnd, i.ioadl)); |
651 | ioarcb->read_ioadl_addr = ioarcb->write_ioadl_addr; |
652 | } |
653 | |
654 | ioasa->hdr.ioasc = 0; |
655 | ioasa->hdr.residual_data_len = 0; |
656 | ipr_cmd->scsi_cmd = NULL; |
657 | ipr_cmd->sense_buffer[0] = 0; |
658 | ipr_cmd->dma_use_sg = 0; |
659 | } |
660 | |
661 | /** |
662 | * ipr_init_ipr_cmnd - Initialize an IPR Cmnd block |
663 | * @ipr_cmd: ipr command struct |
664 | * @fast_done: fast done function call-back |
665 | * |
666 | * Return value: |
667 | * none |
668 | **/ |
669 | static void ipr_init_ipr_cmnd(struct ipr_cmnd *ipr_cmd, |
670 | void (*fast_done) (struct ipr_cmnd *)) |
671 | { |
672 | ipr_reinit_ipr_cmnd(ipr_cmd); |
673 | ipr_cmd->u.scratch = 0; |
674 | ipr_cmd->sibling = NULL; |
675 | ipr_cmd->eh_comp = NULL; |
676 | ipr_cmd->fast_done = fast_done; |
677 | timer_setup(&ipr_cmd->timer, NULL, 0); |
678 | } |
679 | |
680 | /** |
681 | * __ipr_get_free_ipr_cmnd - Get a free IPR Cmnd block |
682 | * @hrrq: hrr queue |
683 | * |
684 | * Return value: |
685 | * pointer to ipr command struct |
686 | **/ |
687 | static |
688 | struct ipr_cmnd *__ipr_get_free_ipr_cmnd(struct ipr_hrr_queue *hrrq) |
689 | { |
690 | struct ipr_cmnd *ipr_cmd = NULL; |
691 | |
692 | if (likely(!list_empty(&hrrq->hrrq_free_q))) { |
693 | ipr_cmd = list_entry(hrrq->hrrq_free_q.next, |
694 | struct ipr_cmnd, queue); |
695 | list_del(entry: &ipr_cmd->queue); |
696 | } |
697 | |
698 | |
699 | return ipr_cmd; |
700 | } |
701 | |
702 | /** |
703 | * ipr_get_free_ipr_cmnd - Get a free IPR Cmnd block and initialize it |
704 | * @ioa_cfg: ioa config struct |
705 | * |
706 | * Return value: |
707 | * pointer to ipr command struct |
708 | **/ |
709 | static |
710 | struct ipr_cmnd *ipr_get_free_ipr_cmnd(struct ipr_ioa_cfg *ioa_cfg) |
711 | { |
712 | struct ipr_cmnd *ipr_cmd = |
713 | __ipr_get_free_ipr_cmnd(hrrq: &ioa_cfg->hrrq[IPR_INIT_HRRQ]); |
714 | ipr_init_ipr_cmnd(ipr_cmd, fast_done: ipr_lock_and_done); |
715 | return ipr_cmd; |
716 | } |
717 | |
718 | /** |
719 | * ipr_mask_and_clear_interrupts - Mask all and clear specified interrupts |
720 | * @ioa_cfg: ioa config struct |
721 | * @clr_ints: interrupts to clear |
722 | * |
723 | * This function masks all interrupts on the adapter, then clears the |
724 | * interrupts specified in the mask |
725 | * |
726 | * Return value: |
727 | * none |
728 | **/ |
729 | static void ipr_mask_and_clear_interrupts(struct ipr_ioa_cfg *ioa_cfg, |
730 | u32 clr_ints) |
731 | { |
732 | int i; |
733 | |
734 | /* Stop new interrupts */ |
735 | for (i = 0; i < ioa_cfg->hrrq_num; i++) { |
736 | spin_lock(lock: &ioa_cfg->hrrq[i]._lock); |
737 | ioa_cfg->hrrq[i].allow_interrupts = 0; |
738 | spin_unlock(lock: &ioa_cfg->hrrq[i]._lock); |
739 | } |
740 | |
741 | /* Set interrupt mask to stop all new interrupts */ |
742 | if (ioa_cfg->sis64) |
743 | writeq(val: ~0, addr: ioa_cfg->regs.set_interrupt_mask_reg); |
744 | else |
745 | writel(val: ~0, addr: ioa_cfg->regs.set_interrupt_mask_reg); |
746 | |
747 | /* Clear any pending interrupts */ |
748 | if (ioa_cfg->sis64) |
749 | writel(val: ~0, addr: ioa_cfg->regs.clr_interrupt_reg); |
750 | writel(val: clr_ints, addr: ioa_cfg->regs.clr_interrupt_reg32); |
751 | readl(addr: ioa_cfg->regs.sense_interrupt_reg); |
752 | } |
753 | |
754 | /** |
755 | * ipr_save_pcix_cmd_reg - Save PCI-X command register |
756 | * @ioa_cfg: ioa config struct |
757 | * |
758 | * Return value: |
759 | * 0 on success / -EIO on failure |
760 | **/ |
761 | static int ipr_save_pcix_cmd_reg(struct ipr_ioa_cfg *ioa_cfg) |
762 | { |
763 | int pcix_cmd_reg = pci_find_capability(dev: ioa_cfg->pdev, PCI_CAP_ID_PCIX); |
764 | int rc; |
765 | |
766 | if (pcix_cmd_reg == 0) |
767 | return 0; |
768 | |
769 | rc = pci_read_config_word(dev: ioa_cfg->pdev, where: pcix_cmd_reg + PCI_X_CMD, |
770 | val: &ioa_cfg->saved_pcix_cmd_reg); |
771 | if (rc != PCIBIOS_SUCCESSFUL) { |
772 | dev_err(&ioa_cfg->pdev->dev, "Failed to save PCI-X command register\n" ); |
773 | return -EIO; |
774 | } |
775 | |
776 | ioa_cfg->saved_pcix_cmd_reg |= PCI_X_CMD_DPERR_E | PCI_X_CMD_ERO; |
777 | return 0; |
778 | } |
779 | |
780 | /** |
781 | * ipr_set_pcix_cmd_reg - Setup PCI-X command register |
782 | * @ioa_cfg: ioa config struct |
783 | * |
784 | * Return value: |
785 | * 0 on success / -EIO on failure |
786 | **/ |
787 | static int ipr_set_pcix_cmd_reg(struct ipr_ioa_cfg *ioa_cfg) |
788 | { |
789 | int pcix_cmd_reg = pci_find_capability(dev: ioa_cfg->pdev, PCI_CAP_ID_PCIX); |
790 | int rc; |
791 | |
792 | if (pcix_cmd_reg) { |
793 | rc = pci_write_config_word(dev: ioa_cfg->pdev, where: pcix_cmd_reg + PCI_X_CMD, |
794 | val: ioa_cfg->saved_pcix_cmd_reg); |
795 | if (rc != PCIBIOS_SUCCESSFUL) { |
796 | dev_err(&ioa_cfg->pdev->dev, "Failed to setup PCI-X command register\n" ); |
797 | return -EIO; |
798 | } |
799 | } |
800 | |
801 | return 0; |
802 | } |
803 | |
804 | |
805 | /** |
806 | * __ipr_scsi_eh_done - mid-layer done function for aborted ops |
807 | * @ipr_cmd: ipr command struct |
808 | * |
809 | * This function is invoked by the interrupt handler for |
810 | * ops generated by the SCSI mid-layer which are being aborted. |
811 | * |
812 | * Return value: |
813 | * none |
814 | **/ |
815 | static void __ipr_scsi_eh_done(struct ipr_cmnd *ipr_cmd) |
816 | { |
817 | struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd; |
818 | |
819 | scsi_cmd->result |= (DID_ERROR << 16); |
820 | |
821 | scsi_dma_unmap(cmd: ipr_cmd->scsi_cmd); |
822 | scsi_done(cmd: scsi_cmd); |
823 | if (ipr_cmd->eh_comp) |
824 | complete(ipr_cmd->eh_comp); |
825 | list_add_tail(new: &ipr_cmd->queue, head: &ipr_cmd->hrrq->hrrq_free_q); |
826 | } |
827 | |
828 | /** |
829 | * ipr_scsi_eh_done - mid-layer done function for aborted ops |
830 | * @ipr_cmd: ipr command struct |
831 | * |
832 | * This function is invoked by the interrupt handler for |
833 | * ops generated by the SCSI mid-layer which are being aborted. |
834 | * |
835 | * Return value: |
836 | * none |
837 | **/ |
838 | static void ipr_scsi_eh_done(struct ipr_cmnd *ipr_cmd) |
839 | { |
840 | unsigned long hrrq_flags; |
841 | struct ipr_hrr_queue *hrrq = ipr_cmd->hrrq; |
842 | |
843 | spin_lock_irqsave(&hrrq->_lock, hrrq_flags); |
844 | __ipr_scsi_eh_done(ipr_cmd); |
845 | spin_unlock_irqrestore(lock: &hrrq->_lock, flags: hrrq_flags); |
846 | } |
847 | |
848 | /** |
849 | * ipr_fail_all_ops - Fails all outstanding ops. |
850 | * @ioa_cfg: ioa config struct |
851 | * |
852 | * This function fails all outstanding ops. |
853 | * |
854 | * Return value: |
855 | * none |
856 | **/ |
857 | static void ipr_fail_all_ops(struct ipr_ioa_cfg *ioa_cfg) |
858 | { |
859 | struct ipr_cmnd *ipr_cmd, *temp; |
860 | struct ipr_hrr_queue *hrrq; |
861 | |
862 | ENTER; |
863 | for_each_hrrq(hrrq, ioa_cfg) { |
864 | spin_lock(lock: &hrrq->_lock); |
865 | list_for_each_entry_safe(ipr_cmd, |
866 | temp, &hrrq->hrrq_pending_q, queue) { |
867 | list_del(entry: &ipr_cmd->queue); |
868 | |
869 | ipr_cmd->s.ioasa.hdr.ioasc = |
870 | cpu_to_be32(IPR_IOASC_IOA_WAS_RESET); |
871 | ipr_cmd->s.ioasa.hdr.ilid = |
872 | cpu_to_be32(IPR_DRIVER_ILID); |
873 | |
874 | if (ipr_cmd->scsi_cmd) |
875 | ipr_cmd->done = __ipr_scsi_eh_done; |
876 | |
877 | ipr_trc_hook(ipr_cmd, IPR_TRACE_FINISH, |
878 | IPR_IOASC_IOA_WAS_RESET); |
879 | del_timer(timer: &ipr_cmd->timer); |
880 | ipr_cmd->done(ipr_cmd); |
881 | } |
882 | spin_unlock(lock: &hrrq->_lock); |
883 | } |
884 | LEAVE; |
885 | } |
886 | |
887 | /** |
888 | * ipr_send_command - Send driver initiated requests. |
889 | * @ipr_cmd: ipr command struct |
890 | * |
891 | * This function sends a command to the adapter using the correct write call. |
892 | * In the case of sis64, calculate the ioarcb size required. Then or in the |
893 | * appropriate bits. |
894 | * |
895 | * Return value: |
896 | * none |
897 | **/ |
898 | static void ipr_send_command(struct ipr_cmnd *ipr_cmd) |
899 | { |
900 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; |
901 | dma_addr_t send_dma_addr = ipr_cmd->dma_addr; |
902 | |
903 | if (ioa_cfg->sis64) { |
904 | /* The default size is 256 bytes */ |
905 | send_dma_addr |= 0x1; |
906 | |
907 | /* If the number of ioadls * size of ioadl > 128 bytes, |
908 | then use a 512 byte ioarcb */ |
909 | if (ipr_cmd->dma_use_sg * sizeof(struct ipr_ioadl64_desc) > 128 ) |
910 | send_dma_addr |= 0x4; |
911 | writeq(val: send_dma_addr, addr: ioa_cfg->regs.ioarrin_reg); |
912 | } else |
913 | writel(val: send_dma_addr, addr: ioa_cfg->regs.ioarrin_reg); |
914 | } |
915 | |
916 | /** |
917 | * ipr_do_req - Send driver initiated requests. |
918 | * @ipr_cmd: ipr command struct |
919 | * @done: done function |
920 | * @timeout_func: timeout function |
921 | * @timeout: timeout value |
922 | * |
923 | * This function sends the specified command to the adapter with the |
924 | * timeout given. The done function is invoked on command completion. |
925 | * |
926 | * Return value: |
927 | * none |
928 | **/ |
929 | static void ipr_do_req(struct ipr_cmnd *ipr_cmd, |
930 | void (*done) (struct ipr_cmnd *), |
931 | void (*timeout_func) (struct timer_list *), u32 timeout) |
932 | { |
933 | list_add_tail(new: &ipr_cmd->queue, head: &ipr_cmd->hrrq->hrrq_pending_q); |
934 | |
935 | ipr_cmd->done = done; |
936 | |
937 | ipr_cmd->timer.expires = jiffies + timeout; |
938 | ipr_cmd->timer.function = timeout_func; |
939 | |
940 | add_timer(timer: &ipr_cmd->timer); |
941 | |
942 | ipr_trc_hook(ipr_cmd, IPR_TRACE_START, add_data: 0); |
943 | |
944 | ipr_send_command(ipr_cmd); |
945 | } |
946 | |
947 | /** |
948 | * ipr_internal_cmd_done - Op done function for an internally generated op. |
949 | * @ipr_cmd: ipr command struct |
950 | * |
951 | * This function is the op done function for an internally generated, |
952 | * blocking op. It simply wakes the sleeping thread. |
953 | * |
954 | * Return value: |
955 | * none |
956 | **/ |
957 | static void ipr_internal_cmd_done(struct ipr_cmnd *ipr_cmd) |
958 | { |
959 | if (ipr_cmd->sibling) |
960 | ipr_cmd->sibling = NULL; |
961 | else |
962 | complete(&ipr_cmd->completion); |
963 | } |
964 | |
965 | /** |
966 | * ipr_init_ioadl - initialize the ioadl for the correct SIS type |
967 | * @ipr_cmd: ipr command struct |
968 | * @dma_addr: dma address |
969 | * @len: transfer length |
970 | * @flags: ioadl flag value |
971 | * |
972 | * This function initializes an ioadl in the case where there is only a single |
973 | * descriptor. |
974 | * |
975 | * Return value: |
976 | * nothing |
977 | **/ |
978 | static void ipr_init_ioadl(struct ipr_cmnd *ipr_cmd, dma_addr_t dma_addr, |
979 | u32 len, int flags) |
980 | { |
981 | struct ipr_ioadl_desc *ioadl = ipr_cmd->i.ioadl; |
982 | struct ipr_ioadl64_desc *ioadl64 = ipr_cmd->i.ioadl64; |
983 | |
984 | ipr_cmd->dma_use_sg = 1; |
985 | |
986 | if (ipr_cmd->ioa_cfg->sis64) { |
987 | ioadl64->flags = cpu_to_be32(flags); |
988 | ioadl64->data_len = cpu_to_be32(len); |
989 | ioadl64->address = cpu_to_be64(dma_addr); |
990 | |
991 | ipr_cmd->ioarcb.ioadl_len = |
992 | cpu_to_be32(sizeof(struct ipr_ioadl64_desc)); |
993 | ipr_cmd->ioarcb.data_transfer_length = cpu_to_be32(len); |
994 | } else { |
995 | ioadl->flags_and_data_len = cpu_to_be32(flags | len); |
996 | ioadl->address = cpu_to_be32(dma_addr); |
997 | |
998 | if (flags == IPR_IOADL_FLAGS_READ_LAST) { |
999 | ipr_cmd->ioarcb.read_ioadl_len = |
1000 | cpu_to_be32(sizeof(struct ipr_ioadl_desc)); |
1001 | ipr_cmd->ioarcb.read_data_transfer_length = cpu_to_be32(len); |
1002 | } else { |
1003 | ipr_cmd->ioarcb.ioadl_len = |
1004 | cpu_to_be32(sizeof(struct ipr_ioadl_desc)); |
1005 | ipr_cmd->ioarcb.data_transfer_length = cpu_to_be32(len); |
1006 | } |
1007 | } |
1008 | } |
1009 | |
1010 | /** |
1011 | * ipr_send_blocking_cmd - Send command and sleep on its completion. |
1012 | * @ipr_cmd: ipr command struct |
1013 | * @timeout_func: function to invoke if command times out |
1014 | * @timeout: timeout |
1015 | * |
1016 | * Return value: |
1017 | * none |
1018 | **/ |
1019 | static void ipr_send_blocking_cmd(struct ipr_cmnd *ipr_cmd, |
1020 | void (*timeout_func) (struct timer_list *), |
1021 | u32 timeout) |
1022 | { |
1023 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; |
1024 | |
1025 | init_completion(x: &ipr_cmd->completion); |
1026 | ipr_do_req(ipr_cmd, done: ipr_internal_cmd_done, timeout_func, timeout); |
1027 | |
1028 | spin_unlock_irq(lock: ioa_cfg->host->host_lock); |
1029 | wait_for_completion(&ipr_cmd->completion); |
1030 | spin_lock_irq(lock: ioa_cfg->host->host_lock); |
1031 | } |
1032 | |
1033 | static int ipr_get_hrrq_index(struct ipr_ioa_cfg *ioa_cfg) |
1034 | { |
1035 | unsigned int hrrq; |
1036 | |
1037 | if (ioa_cfg->hrrq_num == 1) |
1038 | hrrq = 0; |
1039 | else { |
1040 | hrrq = atomic_add_return(i: 1, v: &ioa_cfg->hrrq_index); |
1041 | hrrq = (hrrq % (ioa_cfg->hrrq_num - 1)) + 1; |
1042 | } |
1043 | return hrrq; |
1044 | } |
1045 | |
1046 | /** |
1047 | * ipr_send_hcam - Send an HCAM to the adapter. |
1048 | * @ioa_cfg: ioa config struct |
1049 | * @type: HCAM type |
1050 | * @hostrcb: hostrcb struct |
1051 | * |
1052 | * This function will send a Host Controlled Async command to the adapter. |
1053 | * If HCAMs are currently not allowed to be issued to the adapter, it will |
1054 | * place the hostrcb on the free queue. |
1055 | * |
1056 | * Return value: |
1057 | * none |
1058 | **/ |
1059 | static void ipr_send_hcam(struct ipr_ioa_cfg *ioa_cfg, u8 type, |
1060 | struct ipr_hostrcb *hostrcb) |
1061 | { |
1062 | struct ipr_cmnd *ipr_cmd; |
1063 | struct ipr_ioarcb *ioarcb; |
1064 | |
1065 | if (ioa_cfg->hrrq[IPR_INIT_HRRQ].allow_cmds) { |
1066 | ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg); |
1067 | list_add_tail(new: &ipr_cmd->queue, head: &ipr_cmd->hrrq->hrrq_pending_q); |
1068 | list_add_tail(new: &hostrcb->queue, head: &ioa_cfg->hostrcb_pending_q); |
1069 | |
1070 | ipr_cmd->u.hostrcb = hostrcb; |
1071 | ioarcb = &ipr_cmd->ioarcb; |
1072 | |
1073 | ioarcb->res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE); |
1074 | ioarcb->cmd_pkt.request_type = IPR_RQTYPE_HCAM; |
1075 | ioarcb->cmd_pkt.cdb[0] = IPR_HOST_CONTROLLED_ASYNC; |
1076 | ioarcb->cmd_pkt.cdb[1] = type; |
1077 | ioarcb->cmd_pkt.cdb[7] = (sizeof(hostrcb->hcam) >> 8) & 0xff; |
1078 | ioarcb->cmd_pkt.cdb[8] = sizeof(hostrcb->hcam) & 0xff; |
1079 | |
1080 | ipr_init_ioadl(ipr_cmd, dma_addr: hostrcb->hostrcb_dma, |
1081 | len: sizeof(hostrcb->hcam), IPR_IOADL_FLAGS_READ_LAST); |
1082 | |
1083 | if (type == IPR_HCAM_CDB_OP_CODE_CONFIG_CHANGE) |
1084 | ipr_cmd->done = ipr_process_ccn; |
1085 | else |
1086 | ipr_cmd->done = ipr_process_error; |
1087 | |
1088 | ipr_trc_hook(ipr_cmd, IPR_TRACE_START, IPR_IOA_RES_ADDR); |
1089 | |
1090 | ipr_send_command(ipr_cmd); |
1091 | } else { |
1092 | list_add_tail(new: &hostrcb->queue, head: &ioa_cfg->hostrcb_free_q); |
1093 | } |
1094 | } |
1095 | |
1096 | /** |
1097 | * ipr_init_res_entry - Initialize a resource entry struct. |
1098 | * @res: resource entry struct |
1099 | * @cfgtew: config table entry wrapper struct |
1100 | * |
1101 | * Return value: |
1102 | * none |
1103 | **/ |
1104 | static void ipr_init_res_entry(struct ipr_resource_entry *res, |
1105 | struct ipr_config_table_entry_wrapper *cfgtew) |
1106 | { |
1107 | int found = 0; |
1108 | struct ipr_ioa_cfg *ioa_cfg = res->ioa_cfg; |
1109 | struct ipr_resource_entry *gscsi_res = NULL; |
1110 | |
1111 | res->needs_sync_complete = 0; |
1112 | res->in_erp = 0; |
1113 | res->add_to_ml = 0; |
1114 | res->del_from_ml = 0; |
1115 | res->resetting_device = 0; |
1116 | res->reset_occurred = 0; |
1117 | res->sdev = NULL; |
1118 | |
1119 | if (ioa_cfg->sis64) { |
1120 | res->flags = be16_to_cpu(cfgtew->u.cfgte64->flags); |
1121 | res->res_flags = be16_to_cpu(cfgtew->u.cfgte64->res_flags); |
1122 | res->qmodel = IPR_QUEUEING_MODEL64(res); |
1123 | res->type = cfgtew->u.cfgte64->res_type; |
1124 | |
1125 | memcpy(res->res_path, &cfgtew->u.cfgte64->res_path, |
1126 | sizeof(res->res_path)); |
1127 | |
1128 | res->bus = 0; |
1129 | memcpy(&res->dev_lun.scsi_lun, &cfgtew->u.cfgte64->lun, |
1130 | sizeof(res->dev_lun.scsi_lun)); |
1131 | res->lun = scsilun_to_int(&res->dev_lun); |
1132 | |
1133 | if (res->type == IPR_RES_TYPE_GENERIC_SCSI) { |
1134 | list_for_each_entry(gscsi_res, &ioa_cfg->used_res_q, queue) { |
1135 | if (gscsi_res->dev_id == cfgtew->u.cfgte64->dev_id) { |
1136 | found = 1; |
1137 | res->target = gscsi_res->target; |
1138 | break; |
1139 | } |
1140 | } |
1141 | if (!found) { |
1142 | res->target = find_first_zero_bit(addr: ioa_cfg->target_ids, |
1143 | size: ioa_cfg->max_devs_supported); |
1144 | set_bit(nr: res->target, addr: ioa_cfg->target_ids); |
1145 | } |
1146 | } else if (res->type == IPR_RES_TYPE_IOAFP) { |
1147 | res->bus = IPR_IOAFP_VIRTUAL_BUS; |
1148 | res->target = 0; |
1149 | } else if (res->type == IPR_RES_TYPE_ARRAY) { |
1150 | res->bus = IPR_ARRAY_VIRTUAL_BUS; |
1151 | res->target = find_first_zero_bit(addr: ioa_cfg->array_ids, |
1152 | size: ioa_cfg->max_devs_supported); |
1153 | set_bit(nr: res->target, addr: ioa_cfg->array_ids); |
1154 | } else if (res->type == IPR_RES_TYPE_VOLUME_SET) { |
1155 | res->bus = IPR_VSET_VIRTUAL_BUS; |
1156 | res->target = find_first_zero_bit(addr: ioa_cfg->vset_ids, |
1157 | size: ioa_cfg->max_devs_supported); |
1158 | set_bit(nr: res->target, addr: ioa_cfg->vset_ids); |
1159 | } else { |
1160 | res->target = find_first_zero_bit(addr: ioa_cfg->target_ids, |
1161 | size: ioa_cfg->max_devs_supported); |
1162 | set_bit(nr: res->target, addr: ioa_cfg->target_ids); |
1163 | } |
1164 | } else { |
1165 | res->qmodel = IPR_QUEUEING_MODEL(res); |
1166 | res->flags = cfgtew->u.cfgte->flags; |
1167 | if (res->flags & IPR_IS_IOA_RESOURCE) |
1168 | res->type = IPR_RES_TYPE_IOAFP; |
1169 | else |
1170 | res->type = cfgtew->u.cfgte->rsvd_subtype & 0x0f; |
1171 | |
1172 | res->bus = cfgtew->u.cfgte->res_addr.bus; |
1173 | res->target = cfgtew->u.cfgte->res_addr.target; |
1174 | res->lun = cfgtew->u.cfgte->res_addr.lun; |
1175 | res->lun_wwn = get_unaligned_be64(p: cfgtew->u.cfgte->lun_wwn); |
1176 | } |
1177 | } |
1178 | |
1179 | /** |
1180 | * ipr_is_same_device - Determine if two devices are the same. |
1181 | * @res: resource entry struct |
1182 | * @cfgtew: config table entry wrapper struct |
1183 | * |
1184 | * Return value: |
1185 | * 1 if the devices are the same / 0 otherwise |
1186 | **/ |
1187 | static int ipr_is_same_device(struct ipr_resource_entry *res, |
1188 | struct ipr_config_table_entry_wrapper *cfgtew) |
1189 | { |
1190 | if (res->ioa_cfg->sis64) { |
1191 | if (!memcmp(p: &res->dev_id, q: &cfgtew->u.cfgte64->dev_id, |
1192 | size: sizeof(cfgtew->u.cfgte64->dev_id)) && |
1193 | !memcmp(p: &res->dev_lun.scsi_lun, q: &cfgtew->u.cfgte64->lun, |
1194 | size: sizeof(cfgtew->u.cfgte64->lun))) { |
1195 | return 1; |
1196 | } |
1197 | } else { |
1198 | if (res->bus == cfgtew->u.cfgte->res_addr.bus && |
1199 | res->target == cfgtew->u.cfgte->res_addr.target && |
1200 | res->lun == cfgtew->u.cfgte->res_addr.lun) |
1201 | return 1; |
1202 | } |
1203 | |
1204 | return 0; |
1205 | } |
1206 | |
1207 | /** |
1208 | * __ipr_format_res_path - Format the resource path for printing. |
1209 | * @res_path: resource path |
1210 | * @buffer: buffer |
1211 | * @len: length of buffer provided |
1212 | * |
1213 | * Return value: |
1214 | * pointer to buffer |
1215 | **/ |
1216 | static char *__ipr_format_res_path(u8 *res_path, char *buffer, int len) |
1217 | { |
1218 | int i; |
1219 | char *p = buffer; |
1220 | |
1221 | *p = '\0'; |
1222 | p += scnprintf(buf: p, size: buffer + len - p, fmt: "%02X" , res_path[0]); |
1223 | for (i = 1; res_path[i] != 0xff && i < IPR_RES_PATH_BYTES; i++) |
1224 | p += scnprintf(buf: p, size: buffer + len - p, fmt: "-%02X" , res_path[i]); |
1225 | |
1226 | return buffer; |
1227 | } |
1228 | |
1229 | /** |
1230 | * ipr_format_res_path - Format the resource path for printing. |
1231 | * @ioa_cfg: ioa config struct |
1232 | * @res_path: resource path |
1233 | * @buffer: buffer |
1234 | * @len: length of buffer provided |
1235 | * |
1236 | * Return value: |
1237 | * pointer to buffer |
1238 | **/ |
1239 | static char *ipr_format_res_path(struct ipr_ioa_cfg *ioa_cfg, |
1240 | u8 *res_path, char *buffer, int len) |
1241 | { |
1242 | char *p = buffer; |
1243 | |
1244 | *p = '\0'; |
1245 | p += scnprintf(buf: p, size: buffer + len - p, fmt: "%d/" , ioa_cfg->host->host_no); |
1246 | __ipr_format_res_path(res_path, buffer: p, len: len - (p - buffer)); |
1247 | return buffer; |
1248 | } |
1249 | |
1250 | /** |
1251 | * ipr_update_res_entry - Update the resource entry. |
1252 | * @res: resource entry struct |
1253 | * @cfgtew: config table entry wrapper struct |
1254 | * |
1255 | * Return value: |
1256 | * none |
1257 | **/ |
1258 | static void ipr_update_res_entry(struct ipr_resource_entry *res, |
1259 | struct ipr_config_table_entry_wrapper *cfgtew) |
1260 | { |
1261 | char buffer[IPR_MAX_RES_PATH_LENGTH]; |
1262 | int new_path = 0; |
1263 | |
1264 | if (res->ioa_cfg->sis64) { |
1265 | res->flags = be16_to_cpu(cfgtew->u.cfgte64->flags); |
1266 | res->res_flags = be16_to_cpu(cfgtew->u.cfgte64->res_flags); |
1267 | res->type = cfgtew->u.cfgte64->res_type; |
1268 | |
1269 | memcpy(&res->std_inq_data, &cfgtew->u.cfgte64->std_inq_data, |
1270 | sizeof(struct ipr_std_inq_data)); |
1271 | |
1272 | res->qmodel = IPR_QUEUEING_MODEL64(res); |
1273 | res->res_handle = cfgtew->u.cfgte64->res_handle; |
1274 | res->dev_id = cfgtew->u.cfgte64->dev_id; |
1275 | |
1276 | memcpy(&res->dev_lun.scsi_lun, &cfgtew->u.cfgte64->lun, |
1277 | sizeof(res->dev_lun.scsi_lun)); |
1278 | |
1279 | if (memcmp(p: res->res_path, q: &cfgtew->u.cfgte64->res_path, |
1280 | size: sizeof(res->res_path))) { |
1281 | memcpy(res->res_path, &cfgtew->u.cfgte64->res_path, |
1282 | sizeof(res->res_path)); |
1283 | new_path = 1; |
1284 | } |
1285 | |
1286 | if (res->sdev && new_path) |
1287 | sdev_printk(KERN_INFO, res->sdev, "Resource path: %s\n" , |
1288 | ipr_format_res_path(res->ioa_cfg, |
1289 | res->res_path, buffer, sizeof(buffer))); |
1290 | } else { |
1291 | res->flags = cfgtew->u.cfgte->flags; |
1292 | if (res->flags & IPR_IS_IOA_RESOURCE) |
1293 | res->type = IPR_RES_TYPE_IOAFP; |
1294 | else |
1295 | res->type = cfgtew->u.cfgte->rsvd_subtype & 0x0f; |
1296 | |
1297 | memcpy(&res->std_inq_data, &cfgtew->u.cfgte->std_inq_data, |
1298 | sizeof(struct ipr_std_inq_data)); |
1299 | |
1300 | res->qmodel = IPR_QUEUEING_MODEL(res); |
1301 | res->res_handle = cfgtew->u.cfgte->res_handle; |
1302 | } |
1303 | } |
1304 | |
1305 | /** |
1306 | * ipr_clear_res_target - Clear the bit in the bit map representing the target |
1307 | * for the resource. |
1308 | * @res: resource entry struct |
1309 | * |
1310 | * Return value: |
1311 | * none |
1312 | **/ |
1313 | static void ipr_clear_res_target(struct ipr_resource_entry *res) |
1314 | { |
1315 | struct ipr_resource_entry *gscsi_res = NULL; |
1316 | struct ipr_ioa_cfg *ioa_cfg = res->ioa_cfg; |
1317 | |
1318 | if (!ioa_cfg->sis64) |
1319 | return; |
1320 | |
1321 | if (res->bus == IPR_ARRAY_VIRTUAL_BUS) |
1322 | clear_bit(nr: res->target, addr: ioa_cfg->array_ids); |
1323 | else if (res->bus == IPR_VSET_VIRTUAL_BUS) |
1324 | clear_bit(nr: res->target, addr: ioa_cfg->vset_ids); |
1325 | else if (res->bus == 0 && res->type == IPR_RES_TYPE_GENERIC_SCSI) { |
1326 | list_for_each_entry(gscsi_res, &ioa_cfg->used_res_q, queue) |
1327 | if (gscsi_res->dev_id == res->dev_id && gscsi_res != res) |
1328 | return; |
1329 | clear_bit(nr: res->target, addr: ioa_cfg->target_ids); |
1330 | |
1331 | } else if (res->bus == 0) |
1332 | clear_bit(nr: res->target, addr: ioa_cfg->target_ids); |
1333 | } |
1334 | |
1335 | /** |
1336 | * ipr_handle_config_change - Handle a config change from the adapter |
1337 | * @ioa_cfg: ioa config struct |
1338 | * @hostrcb: hostrcb |
1339 | * |
1340 | * Return value: |
1341 | * none |
1342 | **/ |
1343 | static void ipr_handle_config_change(struct ipr_ioa_cfg *ioa_cfg, |
1344 | struct ipr_hostrcb *hostrcb) |
1345 | { |
1346 | struct ipr_resource_entry *res = NULL; |
1347 | struct ipr_config_table_entry_wrapper cfgtew; |
1348 | __be32 cc_res_handle; |
1349 | |
1350 | u32 is_ndn = 1; |
1351 | |
1352 | if (ioa_cfg->sis64) { |
1353 | cfgtew.u.cfgte64 = &hostrcb->hcam.u.ccn.u.cfgte64; |
1354 | cc_res_handle = cfgtew.u.cfgte64->res_handle; |
1355 | } else { |
1356 | cfgtew.u.cfgte = &hostrcb->hcam.u.ccn.u.cfgte; |
1357 | cc_res_handle = cfgtew.u.cfgte->res_handle; |
1358 | } |
1359 | |
1360 | list_for_each_entry(res, &ioa_cfg->used_res_q, queue) { |
1361 | if (res->res_handle == cc_res_handle) { |
1362 | is_ndn = 0; |
1363 | break; |
1364 | } |
1365 | } |
1366 | |
1367 | if (is_ndn) { |
1368 | if (list_empty(head: &ioa_cfg->free_res_q)) { |
1369 | ipr_send_hcam(ioa_cfg, |
1370 | IPR_HCAM_CDB_OP_CODE_CONFIG_CHANGE, |
1371 | hostrcb); |
1372 | return; |
1373 | } |
1374 | |
1375 | res = list_entry(ioa_cfg->free_res_q.next, |
1376 | struct ipr_resource_entry, queue); |
1377 | |
1378 | list_del(entry: &res->queue); |
1379 | ipr_init_res_entry(res, cfgtew: &cfgtew); |
1380 | list_add_tail(new: &res->queue, head: &ioa_cfg->used_res_q); |
1381 | } |
1382 | |
1383 | ipr_update_res_entry(res, cfgtew: &cfgtew); |
1384 | |
1385 | if (hostrcb->hcam.notify_type == IPR_HOST_RCB_NOTIF_TYPE_REM_ENTRY) { |
1386 | if (res->sdev) { |
1387 | res->del_from_ml = 1; |
1388 | res->res_handle = IPR_INVALID_RES_HANDLE; |
1389 | schedule_work(work: &ioa_cfg->work_q); |
1390 | } else { |
1391 | ipr_clear_res_target(res); |
1392 | list_move_tail(list: &res->queue, head: &ioa_cfg->free_res_q); |
1393 | } |
1394 | } else if (!res->sdev || res->del_from_ml) { |
1395 | res->add_to_ml = 1; |
1396 | schedule_work(work: &ioa_cfg->work_q); |
1397 | } |
1398 | |
1399 | ipr_send_hcam(ioa_cfg, IPR_HCAM_CDB_OP_CODE_CONFIG_CHANGE, hostrcb); |
1400 | } |
1401 | |
1402 | /** |
1403 | * ipr_process_ccn - Op done function for a CCN. |
1404 | * @ipr_cmd: ipr command struct |
1405 | * |
1406 | * This function is the op done function for a configuration |
1407 | * change notification host controlled async from the adapter. |
1408 | * |
1409 | * Return value: |
1410 | * none |
1411 | **/ |
1412 | static void ipr_process_ccn(struct ipr_cmnd *ipr_cmd) |
1413 | { |
1414 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; |
1415 | struct ipr_hostrcb *hostrcb = ipr_cmd->u.hostrcb; |
1416 | u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc); |
1417 | |
1418 | list_del_init(entry: &hostrcb->queue); |
1419 | list_add_tail(new: &ipr_cmd->queue, head: &ipr_cmd->hrrq->hrrq_free_q); |
1420 | |
1421 | if (ioasc) { |
1422 | if (ioasc != IPR_IOASC_IOA_WAS_RESET && |
1423 | ioasc != IPR_IOASC_ABORTED_CMD_TERM_BY_HOST) |
1424 | dev_err(&ioa_cfg->pdev->dev, |
1425 | "Host RCB failed with IOASC: 0x%08X\n" , ioasc); |
1426 | |
1427 | ipr_send_hcam(ioa_cfg, IPR_HCAM_CDB_OP_CODE_CONFIG_CHANGE, hostrcb); |
1428 | } else { |
1429 | ipr_handle_config_change(ioa_cfg, hostrcb); |
1430 | } |
1431 | } |
1432 | |
1433 | /** |
1434 | * strip_whitespace - Strip and pad trailing whitespace. |
1435 | * @i: size of buffer |
1436 | * @buf: string to modify |
1437 | * |
1438 | * This function will strip all trailing whitespace and |
1439 | * NUL terminate the string. |
1440 | * |
1441 | **/ |
1442 | static void strip_whitespace(int i, char *buf) |
1443 | { |
1444 | if (i < 1) |
1445 | return; |
1446 | i--; |
1447 | while (i && buf[i] == ' ') |
1448 | i--; |
1449 | buf[i+1] = '\0'; |
1450 | } |
1451 | |
1452 | /** |
1453 | * ipr_log_vpd_compact - Log the passed extended VPD compactly. |
1454 | * @prefix: string to print at start of printk |
1455 | * @hostrcb: hostrcb pointer |
1456 | * @vpd: vendor/product id/sn struct |
1457 | * |
1458 | * Return value: |
1459 | * none |
1460 | **/ |
1461 | static void ipr_log_vpd_compact(char *prefix, struct ipr_hostrcb *hostrcb, |
1462 | struct ipr_vpd *vpd) |
1463 | { |
1464 | char vendor_id[IPR_VENDOR_ID_LEN + 1]; |
1465 | char product_id[IPR_PROD_ID_LEN + 1]; |
1466 | char sn[IPR_SERIAL_NUM_LEN + 1]; |
1467 | |
1468 | memcpy(vendor_id, vpd->vpids.vendor_id, IPR_VENDOR_ID_LEN); |
1469 | strip_whitespace(IPR_VENDOR_ID_LEN, buf: vendor_id); |
1470 | |
1471 | memcpy(product_id, vpd->vpids.product_id, IPR_PROD_ID_LEN); |
1472 | strip_whitespace(IPR_PROD_ID_LEN, buf: product_id); |
1473 | |
1474 | memcpy(sn, vpd->sn, IPR_SERIAL_NUM_LEN); |
1475 | strip_whitespace(IPR_SERIAL_NUM_LEN, buf: sn); |
1476 | |
1477 | ipr_hcam_err(hostrcb, "%s VPID/SN: %s %s %s\n" , prefix, |
1478 | vendor_id, product_id, sn); |
1479 | } |
1480 | |
1481 | /** |
1482 | * ipr_log_vpd - Log the passed VPD to the error log. |
1483 | * @vpd: vendor/product id/sn struct |
1484 | * |
1485 | * Return value: |
1486 | * none |
1487 | **/ |
1488 | static void ipr_log_vpd(struct ipr_vpd *vpd) |
1489 | { |
1490 | char buffer[IPR_VENDOR_ID_LEN + IPR_PROD_ID_LEN |
1491 | + IPR_SERIAL_NUM_LEN]; |
1492 | |
1493 | memcpy(buffer, vpd->vpids.vendor_id, IPR_VENDOR_ID_LEN); |
1494 | memcpy(buffer + IPR_VENDOR_ID_LEN, vpd->vpids.product_id, |
1495 | IPR_PROD_ID_LEN); |
1496 | buffer[IPR_VENDOR_ID_LEN + IPR_PROD_ID_LEN] = '\0'; |
1497 | ipr_err("Vendor/Product ID: %s\n" , buffer); |
1498 | |
1499 | memcpy(buffer, vpd->sn, IPR_SERIAL_NUM_LEN); |
1500 | buffer[IPR_SERIAL_NUM_LEN] = '\0'; |
1501 | ipr_err(" Serial Number: %s\n" , buffer); |
1502 | } |
1503 | |
1504 | /** |
1505 | * ipr_log_ext_vpd_compact - Log the passed extended VPD compactly. |
1506 | * @prefix: string to print at start of printk |
1507 | * @hostrcb: hostrcb pointer |
1508 | * @vpd: vendor/product id/sn/wwn struct |
1509 | * |
1510 | * Return value: |
1511 | * none |
1512 | **/ |
1513 | static void ipr_log_ext_vpd_compact(char *prefix, struct ipr_hostrcb *hostrcb, |
1514 | struct ipr_ext_vpd *vpd) |
1515 | { |
1516 | ipr_log_vpd_compact(prefix, hostrcb, vpd: &vpd->vpd); |
1517 | ipr_hcam_err(hostrcb, "%s WWN: %08X%08X\n" , prefix, |
1518 | be32_to_cpu(vpd->wwid[0]), be32_to_cpu(vpd->wwid[1])); |
1519 | } |
1520 | |
1521 | /** |
1522 | * ipr_log_ext_vpd - Log the passed extended VPD to the error log. |
1523 | * @vpd: vendor/product id/sn/wwn struct |
1524 | * |
1525 | * Return value: |
1526 | * none |
1527 | **/ |
1528 | static void ipr_log_ext_vpd(struct ipr_ext_vpd *vpd) |
1529 | { |
1530 | ipr_log_vpd(vpd: &vpd->vpd); |
1531 | ipr_err(" WWN: %08X%08X\n" , be32_to_cpu(vpd->wwid[0]), |
1532 | be32_to_cpu(vpd->wwid[1])); |
1533 | } |
1534 | |
1535 | /** |
1536 | * ipr_log_enhanced_cache_error - Log a cache error. |
1537 | * @ioa_cfg: ioa config struct |
1538 | * @hostrcb: hostrcb struct |
1539 | * |
1540 | * Return value: |
1541 | * none |
1542 | **/ |
1543 | static void ipr_log_enhanced_cache_error(struct ipr_ioa_cfg *ioa_cfg, |
1544 | struct ipr_hostrcb *hostrcb) |
1545 | { |
1546 | struct ipr_hostrcb_type_12_error *error; |
1547 | |
1548 | if (ioa_cfg->sis64) |
1549 | error = &hostrcb->hcam.u.error64.u.type_12_error; |
1550 | else |
1551 | error = &hostrcb->hcam.u.error.u.type_12_error; |
1552 | |
1553 | ipr_err("-----Current Configuration-----\n" ); |
1554 | ipr_err("Cache Directory Card Information:\n" ); |
1555 | ipr_log_ext_vpd(vpd: &error->ioa_vpd); |
1556 | ipr_err("Adapter Card Information:\n" ); |
1557 | ipr_log_ext_vpd(vpd: &error->cfc_vpd); |
1558 | |
1559 | ipr_err("-----Expected Configuration-----\n" ); |
1560 | ipr_err("Cache Directory Card Information:\n" ); |
1561 | ipr_log_ext_vpd(vpd: &error->ioa_last_attached_to_cfc_vpd); |
1562 | ipr_err("Adapter Card Information:\n" ); |
1563 | ipr_log_ext_vpd(vpd: &error->cfc_last_attached_to_ioa_vpd); |
1564 | |
1565 | ipr_err("Additional IOA Data: %08X %08X %08X\n" , |
1566 | be32_to_cpu(error->ioa_data[0]), |
1567 | be32_to_cpu(error->ioa_data[1]), |
1568 | be32_to_cpu(error->ioa_data[2])); |
1569 | } |
1570 | |
1571 | /** |
1572 | * ipr_log_cache_error - Log a cache error. |
1573 | * @ioa_cfg: ioa config struct |
1574 | * @hostrcb: hostrcb struct |
1575 | * |
1576 | * Return value: |
1577 | * none |
1578 | **/ |
1579 | static void ipr_log_cache_error(struct ipr_ioa_cfg *ioa_cfg, |
1580 | struct ipr_hostrcb *hostrcb) |
1581 | { |
1582 | struct ipr_hostrcb_type_02_error *error = |
1583 | &hostrcb->hcam.u.error.u.type_02_error; |
1584 | |
1585 | ipr_err("-----Current Configuration-----\n" ); |
1586 | ipr_err("Cache Directory Card Information:\n" ); |
1587 | ipr_log_vpd(vpd: &error->ioa_vpd); |
1588 | ipr_err("Adapter Card Information:\n" ); |
1589 | ipr_log_vpd(vpd: &error->cfc_vpd); |
1590 | |
1591 | ipr_err("-----Expected Configuration-----\n" ); |
1592 | ipr_err("Cache Directory Card Information:\n" ); |
1593 | ipr_log_vpd(vpd: &error->ioa_last_attached_to_cfc_vpd); |
1594 | ipr_err("Adapter Card Information:\n" ); |
1595 | ipr_log_vpd(vpd: &error->cfc_last_attached_to_ioa_vpd); |
1596 | |
1597 | ipr_err("Additional IOA Data: %08X %08X %08X\n" , |
1598 | be32_to_cpu(error->ioa_data[0]), |
1599 | be32_to_cpu(error->ioa_data[1]), |
1600 | be32_to_cpu(error->ioa_data[2])); |
1601 | } |
1602 | |
1603 | /** |
1604 | * ipr_log_enhanced_config_error - Log a configuration error. |
1605 | * @ioa_cfg: ioa config struct |
1606 | * @hostrcb: hostrcb struct |
1607 | * |
1608 | * Return value: |
1609 | * none |
1610 | **/ |
1611 | static void ipr_log_enhanced_config_error(struct ipr_ioa_cfg *ioa_cfg, |
1612 | struct ipr_hostrcb *hostrcb) |
1613 | { |
1614 | int errors_logged, i; |
1615 | struct ipr_hostrcb_device_data_entry_enhanced *dev_entry; |
1616 | struct ipr_hostrcb_type_13_error *error; |
1617 | |
1618 | error = &hostrcb->hcam.u.error.u.type_13_error; |
1619 | errors_logged = be32_to_cpu(error->errors_logged); |
1620 | |
1621 | ipr_err("Device Errors Detected/Logged: %d/%d\n" , |
1622 | be32_to_cpu(error->errors_detected), errors_logged); |
1623 | |
1624 | dev_entry = error->dev; |
1625 | |
1626 | for (i = 0; i < errors_logged; i++, dev_entry++) { |
1627 | ipr_err_separator; |
1628 | |
1629 | ipr_phys_res_err(ioa_cfg, dev_entry->dev_res_addr, "Device %d" , i + 1); |
1630 | ipr_log_ext_vpd(vpd: &dev_entry->vpd); |
1631 | |
1632 | ipr_err("-----New Device Information-----\n" ); |
1633 | ipr_log_ext_vpd(vpd: &dev_entry->new_vpd); |
1634 | |
1635 | ipr_err("Cache Directory Card Information:\n" ); |
1636 | ipr_log_ext_vpd(vpd: &dev_entry->ioa_last_with_dev_vpd); |
1637 | |
1638 | ipr_err("Adapter Card Information:\n" ); |
1639 | ipr_log_ext_vpd(vpd: &dev_entry->cfc_last_with_dev_vpd); |
1640 | } |
1641 | } |
1642 | |
1643 | /** |
1644 | * ipr_log_sis64_config_error - Log a device error. |
1645 | * @ioa_cfg: ioa config struct |
1646 | * @hostrcb: hostrcb struct |
1647 | * |
1648 | * Return value: |
1649 | * none |
1650 | **/ |
1651 | static void ipr_log_sis64_config_error(struct ipr_ioa_cfg *ioa_cfg, |
1652 | struct ipr_hostrcb *hostrcb) |
1653 | { |
1654 | int errors_logged, i; |
1655 | struct ipr_hostrcb64_device_data_entry_enhanced *dev_entry; |
1656 | struct ipr_hostrcb_type_23_error *error; |
1657 | char buffer[IPR_MAX_RES_PATH_LENGTH]; |
1658 | |
1659 | error = &hostrcb->hcam.u.error64.u.type_23_error; |
1660 | errors_logged = be32_to_cpu(error->errors_logged); |
1661 | |
1662 | ipr_err("Device Errors Detected/Logged: %d/%d\n" , |
1663 | be32_to_cpu(error->errors_detected), errors_logged); |
1664 | |
1665 | dev_entry = error->dev; |
1666 | |
1667 | for (i = 0; i < errors_logged; i++, dev_entry++) { |
1668 | ipr_err_separator; |
1669 | |
1670 | ipr_err("Device %d : %s" , i + 1, |
1671 | __ipr_format_res_path(dev_entry->res_path, |
1672 | buffer, sizeof(buffer))); |
1673 | ipr_log_ext_vpd(vpd: &dev_entry->vpd); |
1674 | |
1675 | ipr_err("-----New Device Information-----\n" ); |
1676 | ipr_log_ext_vpd(vpd: &dev_entry->new_vpd); |
1677 | |
1678 | ipr_err("Cache Directory Card Information:\n" ); |
1679 | ipr_log_ext_vpd(vpd: &dev_entry->ioa_last_with_dev_vpd); |
1680 | |
1681 | ipr_err("Adapter Card Information:\n" ); |
1682 | ipr_log_ext_vpd(vpd: &dev_entry->cfc_last_with_dev_vpd); |
1683 | } |
1684 | } |
1685 | |
1686 | /** |
1687 | * ipr_log_config_error - Log a configuration error. |
1688 | * @ioa_cfg: ioa config struct |
1689 | * @hostrcb: hostrcb struct |
1690 | * |
1691 | * Return value: |
1692 | * none |
1693 | **/ |
1694 | static void ipr_log_config_error(struct ipr_ioa_cfg *ioa_cfg, |
1695 | struct ipr_hostrcb *hostrcb) |
1696 | { |
1697 | int errors_logged, i; |
1698 | struct ipr_hostrcb_device_data_entry *dev_entry; |
1699 | struct ipr_hostrcb_type_03_error *error; |
1700 | |
1701 | error = &hostrcb->hcam.u.error.u.type_03_error; |
1702 | errors_logged = be32_to_cpu(error->errors_logged); |
1703 | |
1704 | ipr_err("Device Errors Detected/Logged: %d/%d\n" , |
1705 | be32_to_cpu(error->errors_detected), errors_logged); |
1706 | |
1707 | dev_entry = error->dev; |
1708 | |
1709 | for (i = 0; i < errors_logged; i++, dev_entry++) { |
1710 | ipr_err_separator; |
1711 | |
1712 | ipr_phys_res_err(ioa_cfg, dev_entry->dev_res_addr, "Device %d" , i + 1); |
1713 | ipr_log_vpd(vpd: &dev_entry->vpd); |
1714 | |
1715 | ipr_err("-----New Device Information-----\n" ); |
1716 | ipr_log_vpd(vpd: &dev_entry->new_vpd); |
1717 | |
1718 | ipr_err("Cache Directory Card Information:\n" ); |
1719 | ipr_log_vpd(vpd: &dev_entry->ioa_last_with_dev_vpd); |
1720 | |
1721 | ipr_err("Adapter Card Information:\n" ); |
1722 | ipr_log_vpd(vpd: &dev_entry->cfc_last_with_dev_vpd); |
1723 | |
1724 | ipr_err("Additional IOA Data: %08X %08X %08X %08X %08X\n" , |
1725 | be32_to_cpu(dev_entry->ioa_data[0]), |
1726 | be32_to_cpu(dev_entry->ioa_data[1]), |
1727 | be32_to_cpu(dev_entry->ioa_data[2]), |
1728 | be32_to_cpu(dev_entry->ioa_data[3]), |
1729 | be32_to_cpu(dev_entry->ioa_data[4])); |
1730 | } |
1731 | } |
1732 | |
1733 | /** |
1734 | * ipr_log_enhanced_array_error - Log an array configuration error. |
1735 | * @ioa_cfg: ioa config struct |
1736 | * @hostrcb: hostrcb struct |
1737 | * |
1738 | * Return value: |
1739 | * none |
1740 | **/ |
1741 | static void ipr_log_enhanced_array_error(struct ipr_ioa_cfg *ioa_cfg, |
1742 | struct ipr_hostrcb *hostrcb) |
1743 | { |
1744 | int i, num_entries; |
1745 | struct ipr_hostrcb_type_14_error *error; |
1746 | struct ipr_hostrcb_array_data_entry_enhanced *array_entry; |
1747 | const u8 zero_sn[IPR_SERIAL_NUM_LEN] = { [0 ... IPR_SERIAL_NUM_LEN-1] = '0' }; |
1748 | |
1749 | error = &hostrcb->hcam.u.error.u.type_14_error; |
1750 | |
1751 | ipr_err_separator; |
1752 | |
1753 | ipr_err("RAID %s Array Configuration: %d:%d:%d:%d\n" , |
1754 | error->protection_level, |
1755 | ioa_cfg->host->host_no, |
1756 | error->last_func_vset_res_addr.bus, |
1757 | error->last_func_vset_res_addr.target, |
1758 | error->last_func_vset_res_addr.lun); |
1759 | |
1760 | ipr_err_separator; |
1761 | |
1762 | array_entry = error->array_member; |
1763 | num_entries = min_t(u32, be32_to_cpu(error->num_entries), |
1764 | ARRAY_SIZE(error->array_member)); |
1765 | |
1766 | for (i = 0; i < num_entries; i++, array_entry++) { |
1767 | if (!memcmp(p: array_entry->vpd.vpd.sn, q: zero_sn, IPR_SERIAL_NUM_LEN)) |
1768 | continue; |
1769 | |
1770 | if (be32_to_cpu(error->exposed_mode_adn) == i) |
1771 | ipr_err("Exposed Array Member %d:\n" , i); |
1772 | else |
1773 | ipr_err("Array Member %d:\n" , i); |
1774 | |
1775 | ipr_log_ext_vpd(vpd: &array_entry->vpd); |
1776 | ipr_phys_res_err(ioa_cfg, array_entry->dev_res_addr, "Current Location" ); |
1777 | ipr_phys_res_err(ioa_cfg, array_entry->expected_dev_res_addr, |
1778 | "Expected Location" ); |
1779 | |
1780 | ipr_err_separator; |
1781 | } |
1782 | } |
1783 | |
1784 | /** |
1785 | * ipr_log_array_error - Log an array configuration error. |
1786 | * @ioa_cfg: ioa config struct |
1787 | * @hostrcb: hostrcb struct |
1788 | * |
1789 | * Return value: |
1790 | * none |
1791 | **/ |
1792 | static void ipr_log_array_error(struct ipr_ioa_cfg *ioa_cfg, |
1793 | struct ipr_hostrcb *hostrcb) |
1794 | { |
1795 | int i; |
1796 | struct ipr_hostrcb_type_04_error *error; |
1797 | struct ipr_hostrcb_array_data_entry *array_entry; |
1798 | const u8 zero_sn[IPR_SERIAL_NUM_LEN] = { [0 ... IPR_SERIAL_NUM_LEN-1] = '0' }; |
1799 | |
1800 | error = &hostrcb->hcam.u.error.u.type_04_error; |
1801 | |
1802 | ipr_err_separator; |
1803 | |
1804 | ipr_err("RAID %s Array Configuration: %d:%d:%d:%d\n" , |
1805 | error->protection_level, |
1806 | ioa_cfg->host->host_no, |
1807 | error->last_func_vset_res_addr.bus, |
1808 | error->last_func_vset_res_addr.target, |
1809 | error->last_func_vset_res_addr.lun); |
1810 | |
1811 | ipr_err_separator; |
1812 | |
1813 | array_entry = error->array_member; |
1814 | |
1815 | for (i = 0; i < 18; i++) { |
1816 | if (!memcmp(p: array_entry->vpd.sn, q: zero_sn, IPR_SERIAL_NUM_LEN)) |
1817 | continue; |
1818 | |
1819 | if (be32_to_cpu(error->exposed_mode_adn) == i) |
1820 | ipr_err("Exposed Array Member %d:\n" , i); |
1821 | else |
1822 | ipr_err("Array Member %d:\n" , i); |
1823 | |
1824 | ipr_log_vpd(vpd: &array_entry->vpd); |
1825 | |
1826 | ipr_phys_res_err(ioa_cfg, array_entry->dev_res_addr, "Current Location" ); |
1827 | ipr_phys_res_err(ioa_cfg, array_entry->expected_dev_res_addr, |
1828 | "Expected Location" ); |
1829 | |
1830 | ipr_err_separator; |
1831 | |
1832 | if (i == 9) |
1833 | array_entry = error->array_member2; |
1834 | else |
1835 | array_entry++; |
1836 | } |
1837 | } |
1838 | |
1839 | /** |
1840 | * ipr_log_hex_data - Log additional hex IOA error data. |
1841 | * @ioa_cfg: ioa config struct |
1842 | * @data: IOA error data |
1843 | * @len: data length |
1844 | * |
1845 | * Return value: |
1846 | * none |
1847 | **/ |
1848 | static void ipr_log_hex_data(struct ipr_ioa_cfg *ioa_cfg, __be32 *data, int len) |
1849 | { |
1850 | int i; |
1851 | |
1852 | if (len == 0) |
1853 | return; |
1854 | |
1855 | if (ioa_cfg->log_level <= IPR_DEFAULT_LOG_LEVEL) |
1856 | len = min_t(int, len, IPR_DEFAULT_MAX_ERROR_DUMP); |
1857 | |
1858 | for (i = 0; i < len / 4; i += 4) { |
1859 | ipr_err("%08X: %08X %08X %08X %08X\n" , i*4, |
1860 | be32_to_cpu(data[i]), |
1861 | be32_to_cpu(data[i+1]), |
1862 | be32_to_cpu(data[i+2]), |
1863 | be32_to_cpu(data[i+3])); |
1864 | } |
1865 | } |
1866 | |
1867 | /** |
1868 | * ipr_log_enhanced_dual_ioa_error - Log an enhanced dual adapter error. |
1869 | * @ioa_cfg: ioa config struct |
1870 | * @hostrcb: hostrcb struct |
1871 | * |
1872 | * Return value: |
1873 | * none |
1874 | **/ |
1875 | static void ipr_log_enhanced_dual_ioa_error(struct ipr_ioa_cfg *ioa_cfg, |
1876 | struct ipr_hostrcb *hostrcb) |
1877 | { |
1878 | struct ipr_hostrcb_type_17_error *error; |
1879 | |
1880 | if (ioa_cfg->sis64) |
1881 | error = &hostrcb->hcam.u.error64.u.type_17_error; |
1882 | else |
1883 | error = &hostrcb->hcam.u.error.u.type_17_error; |
1884 | |
1885 | error->failure_reason[sizeof(error->failure_reason) - 1] = '\0'; |
1886 | strim(error->failure_reason); |
1887 | |
1888 | ipr_hcam_err(hostrcb, "%s [PRC: %08X]\n" , error->failure_reason, |
1889 | be32_to_cpu(hostrcb->hcam.u.error.prc)); |
1890 | ipr_log_ext_vpd_compact(prefix: "Remote IOA" , hostrcb, vpd: &error->vpd); |
1891 | ipr_log_hex_data(ioa_cfg, data: error->data, |
1892 | be32_to_cpu(hostrcb->hcam.length) - |
1893 | (offsetof(struct ipr_hostrcb_error, u) + |
1894 | offsetof(struct ipr_hostrcb_type_17_error, data))); |
1895 | } |
1896 | |
1897 | /** |
1898 | * ipr_log_dual_ioa_error - Log a dual adapter error. |
1899 | * @ioa_cfg: ioa config struct |
1900 | * @hostrcb: hostrcb struct |
1901 | * |
1902 | * Return value: |
1903 | * none |
1904 | **/ |
1905 | static void ipr_log_dual_ioa_error(struct ipr_ioa_cfg *ioa_cfg, |
1906 | struct ipr_hostrcb *hostrcb) |
1907 | { |
1908 | struct ipr_hostrcb_type_07_error *error; |
1909 | |
1910 | error = &hostrcb->hcam.u.error.u.type_07_error; |
1911 | error->failure_reason[sizeof(error->failure_reason) - 1] = '\0'; |
1912 | strim(error->failure_reason); |
1913 | |
1914 | ipr_hcam_err(hostrcb, "%s [PRC: %08X]\n" , error->failure_reason, |
1915 | be32_to_cpu(hostrcb->hcam.u.error.prc)); |
1916 | ipr_log_vpd_compact(prefix: "Remote IOA" , hostrcb, vpd: &error->vpd); |
1917 | ipr_log_hex_data(ioa_cfg, data: error->data, |
1918 | be32_to_cpu(hostrcb->hcam.length) - |
1919 | (offsetof(struct ipr_hostrcb_error, u) + |
1920 | offsetof(struct ipr_hostrcb_type_07_error, data))); |
1921 | } |
1922 | |
1923 | static const struct { |
1924 | u8 active; |
1925 | char *desc; |
1926 | } path_active_desc[] = { |
1927 | { IPR_PATH_NO_INFO, "Path" }, |
1928 | { IPR_PATH_ACTIVE, "Active path" }, |
1929 | { IPR_PATH_NOT_ACTIVE, "Inactive path" } |
1930 | }; |
1931 | |
1932 | static const struct { |
1933 | u8 state; |
1934 | char *desc; |
1935 | } path_state_desc[] = { |
1936 | { IPR_PATH_STATE_NO_INFO, "has no path state information available" }, |
1937 | { IPR_PATH_HEALTHY, "is healthy" }, |
1938 | { IPR_PATH_DEGRADED, "is degraded" }, |
1939 | { IPR_PATH_FAILED, "is failed" } |
1940 | }; |
1941 | |
1942 | /** |
1943 | * ipr_log_fabric_path - Log a fabric path error |
1944 | * @hostrcb: hostrcb struct |
1945 | * @fabric: fabric descriptor |
1946 | * |
1947 | * Return value: |
1948 | * none |
1949 | **/ |
1950 | static void ipr_log_fabric_path(struct ipr_hostrcb *hostrcb, |
1951 | struct ipr_hostrcb_fabric_desc *fabric) |
1952 | { |
1953 | int i, j; |
1954 | u8 path_state = fabric->path_state; |
1955 | u8 active = path_state & IPR_PATH_ACTIVE_MASK; |
1956 | u8 state = path_state & IPR_PATH_STATE_MASK; |
1957 | |
1958 | for (i = 0; i < ARRAY_SIZE(path_active_desc); i++) { |
1959 | if (path_active_desc[i].active != active) |
1960 | continue; |
1961 | |
1962 | for (j = 0; j < ARRAY_SIZE(path_state_desc); j++) { |
1963 | if (path_state_desc[j].state != state) |
1964 | continue; |
1965 | |
1966 | if (fabric->cascaded_expander == 0xff && fabric->phy == 0xff) { |
1967 | ipr_hcam_err(hostrcb, "%s %s: IOA Port=%d\n" , |
1968 | path_active_desc[i].desc, path_state_desc[j].desc, |
1969 | fabric->ioa_port); |
1970 | } else if (fabric->cascaded_expander == 0xff) { |
1971 | ipr_hcam_err(hostrcb, "%s %s: IOA Port=%d, Phy=%d\n" , |
1972 | path_active_desc[i].desc, path_state_desc[j].desc, |
1973 | fabric->ioa_port, fabric->phy); |
1974 | } else if (fabric->phy == 0xff) { |
1975 | ipr_hcam_err(hostrcb, "%s %s: IOA Port=%d, Cascade=%d\n" , |
1976 | path_active_desc[i].desc, path_state_desc[j].desc, |
1977 | fabric->ioa_port, fabric->cascaded_expander); |
1978 | } else { |
1979 | ipr_hcam_err(hostrcb, "%s %s: IOA Port=%d, Cascade=%d, Phy=%d\n" , |
1980 | path_active_desc[i].desc, path_state_desc[j].desc, |
1981 | fabric->ioa_port, fabric->cascaded_expander, fabric->phy); |
1982 | } |
1983 | return; |
1984 | } |
1985 | } |
1986 | |
1987 | ipr_err("Path state=%02X IOA Port=%d Cascade=%d Phy=%d\n" , path_state, |
1988 | fabric->ioa_port, fabric->cascaded_expander, fabric->phy); |
1989 | } |
1990 | |
1991 | /** |
1992 | * ipr_log64_fabric_path - Log a fabric path error |
1993 | * @hostrcb: hostrcb struct |
1994 | * @fabric: fabric descriptor |
1995 | * |
1996 | * Return value: |
1997 | * none |
1998 | **/ |
1999 | static void ipr_log64_fabric_path(struct ipr_hostrcb *hostrcb, |
2000 | struct ipr_hostrcb64_fabric_desc *fabric) |
2001 | { |
2002 | int i, j; |
2003 | u8 path_state = fabric->path_state; |
2004 | u8 active = path_state & IPR_PATH_ACTIVE_MASK; |
2005 | u8 state = path_state & IPR_PATH_STATE_MASK; |
2006 | char buffer[IPR_MAX_RES_PATH_LENGTH]; |
2007 | |
2008 | for (i = 0; i < ARRAY_SIZE(path_active_desc); i++) { |
2009 | if (path_active_desc[i].active != active) |
2010 | continue; |
2011 | |
2012 | for (j = 0; j < ARRAY_SIZE(path_state_desc); j++) { |
2013 | if (path_state_desc[j].state != state) |
2014 | continue; |
2015 | |
2016 | ipr_hcam_err(hostrcb, "%s %s: Resource Path=%s\n" , |
2017 | path_active_desc[i].desc, path_state_desc[j].desc, |
2018 | ipr_format_res_path(hostrcb->ioa_cfg, |
2019 | fabric->res_path, |
2020 | buffer, sizeof(buffer))); |
2021 | return; |
2022 | } |
2023 | } |
2024 | |
2025 | ipr_err("Path state=%02X Resource Path=%s\n" , path_state, |
2026 | ipr_format_res_path(hostrcb->ioa_cfg, fabric->res_path, |
2027 | buffer, sizeof(buffer))); |
2028 | } |
2029 | |
2030 | static const struct { |
2031 | u8 type; |
2032 | char *desc; |
2033 | } path_type_desc[] = { |
2034 | { IPR_PATH_CFG_IOA_PORT, "IOA port" }, |
2035 | { IPR_PATH_CFG_EXP_PORT, "Expander port" }, |
2036 | { IPR_PATH_CFG_DEVICE_PORT, "Device port" }, |
2037 | { IPR_PATH_CFG_DEVICE_LUN, "Device LUN" } |
2038 | }; |
2039 | |
2040 | static const struct { |
2041 | u8 status; |
2042 | char *desc; |
2043 | } path_status_desc[] = { |
2044 | { IPR_PATH_CFG_NO_PROB, "Functional" }, |
2045 | { IPR_PATH_CFG_DEGRADED, "Degraded" }, |
2046 | { IPR_PATH_CFG_FAILED, "Failed" }, |
2047 | { IPR_PATH_CFG_SUSPECT, "Suspect" }, |
2048 | { IPR_PATH_NOT_DETECTED, "Missing" }, |
2049 | { IPR_PATH_INCORRECT_CONN, "Incorrectly connected" } |
2050 | }; |
2051 | |
2052 | static const char *link_rate[] = { |
2053 | "unknown" , |
2054 | "disabled" , |
2055 | "phy reset problem" , |
2056 | "spinup hold" , |
2057 | "port selector" , |
2058 | "unknown" , |
2059 | "unknown" , |
2060 | "unknown" , |
2061 | "1.5Gbps" , |
2062 | "3.0Gbps" , |
2063 | "unknown" , |
2064 | "unknown" , |
2065 | "unknown" , |
2066 | "unknown" , |
2067 | "unknown" , |
2068 | "unknown" |
2069 | }; |
2070 | |
2071 | /** |
2072 | * ipr_log_path_elem - Log a fabric path element. |
2073 | * @hostrcb: hostrcb struct |
2074 | * @cfg: fabric path element struct |
2075 | * |
2076 | * Return value: |
2077 | * none |
2078 | **/ |
2079 | static void ipr_log_path_elem(struct ipr_hostrcb *hostrcb, |
2080 | struct ipr_hostrcb_config_element *cfg) |
2081 | { |
2082 | int i, j; |
2083 | u8 type = cfg->type_status & IPR_PATH_CFG_TYPE_MASK; |
2084 | u8 status = cfg->type_status & IPR_PATH_CFG_STATUS_MASK; |
2085 | |
2086 | if (type == IPR_PATH_CFG_NOT_EXIST) |
2087 | return; |
2088 | |
2089 | for (i = 0; i < ARRAY_SIZE(path_type_desc); i++) { |
2090 | if (path_type_desc[i].type != type) |
2091 | continue; |
2092 | |
2093 | for (j = 0; j < ARRAY_SIZE(path_status_desc); j++) { |
2094 | if (path_status_desc[j].status != status) |
2095 | continue; |
2096 | |
2097 | if (type == IPR_PATH_CFG_IOA_PORT) { |
2098 | ipr_hcam_err(hostrcb, "%s %s: Phy=%d, Link rate=%s, WWN=%08X%08X\n" , |
2099 | path_status_desc[j].desc, path_type_desc[i].desc, |
2100 | cfg->phy, link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK], |
2101 | be32_to_cpu(cfg->wwid[0]), be32_to_cpu(cfg->wwid[1])); |
2102 | } else { |
2103 | if (cfg->cascaded_expander == 0xff && cfg->phy == 0xff) { |
2104 | ipr_hcam_err(hostrcb, "%s %s: Link rate=%s, WWN=%08X%08X\n" , |
2105 | path_status_desc[j].desc, path_type_desc[i].desc, |
2106 | link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK], |
2107 | be32_to_cpu(cfg->wwid[0]), be32_to_cpu(cfg->wwid[1])); |
2108 | } else if (cfg->cascaded_expander == 0xff) { |
2109 | ipr_hcam_err(hostrcb, "%s %s: Phy=%d, Link rate=%s, " |
2110 | "WWN=%08X%08X\n" , path_status_desc[j].desc, |
2111 | path_type_desc[i].desc, cfg->phy, |
2112 | link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK], |
2113 | be32_to_cpu(cfg->wwid[0]), be32_to_cpu(cfg->wwid[1])); |
2114 | } else if (cfg->phy == 0xff) { |
2115 | ipr_hcam_err(hostrcb, "%s %s: Cascade=%d, Link rate=%s, " |
2116 | "WWN=%08X%08X\n" , path_status_desc[j].desc, |
2117 | path_type_desc[i].desc, cfg->cascaded_expander, |
2118 | link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK], |
2119 | be32_to_cpu(cfg->wwid[0]), be32_to_cpu(cfg->wwid[1])); |
2120 | } else { |
2121 | ipr_hcam_err(hostrcb, "%s %s: Cascade=%d, Phy=%d, Link rate=%s " |
2122 | "WWN=%08X%08X\n" , path_status_desc[j].desc, |
2123 | path_type_desc[i].desc, cfg->cascaded_expander, cfg->phy, |
2124 | link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK], |
2125 | be32_to_cpu(cfg->wwid[0]), be32_to_cpu(cfg->wwid[1])); |
2126 | } |
2127 | } |
2128 | return; |
2129 | } |
2130 | } |
2131 | |
2132 | ipr_hcam_err(hostrcb, "Path element=%02X: Cascade=%d Phy=%d Link rate=%s " |
2133 | "WWN=%08X%08X\n" , cfg->type_status, cfg->cascaded_expander, cfg->phy, |
2134 | link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK], |
2135 | be32_to_cpu(cfg->wwid[0]), be32_to_cpu(cfg->wwid[1])); |
2136 | } |
2137 | |
2138 | /** |
2139 | * ipr_log64_path_elem - Log a fabric path element. |
2140 | * @hostrcb: hostrcb struct |
2141 | * @cfg: fabric path element struct |
2142 | * |
2143 | * Return value: |
2144 | * none |
2145 | **/ |
2146 | static void ipr_log64_path_elem(struct ipr_hostrcb *hostrcb, |
2147 | struct ipr_hostrcb64_config_element *cfg) |
2148 | { |
2149 | int i, j; |
2150 | u8 desc_id = cfg->descriptor_id & IPR_DESCRIPTOR_MASK; |
2151 | u8 type = cfg->type_status & IPR_PATH_CFG_TYPE_MASK; |
2152 | u8 status = cfg->type_status & IPR_PATH_CFG_STATUS_MASK; |
2153 | char buffer[IPR_MAX_RES_PATH_LENGTH]; |
2154 | |
2155 | if (type == IPR_PATH_CFG_NOT_EXIST || desc_id != IPR_DESCRIPTOR_SIS64) |
2156 | return; |
2157 | |
2158 | for (i = 0; i < ARRAY_SIZE(path_type_desc); i++) { |
2159 | if (path_type_desc[i].type != type) |
2160 | continue; |
2161 | |
2162 | for (j = 0; j < ARRAY_SIZE(path_status_desc); j++) { |
2163 | if (path_status_desc[j].status != status) |
2164 | continue; |
2165 | |
2166 | ipr_hcam_err(hostrcb, "%s %s: Resource Path=%s, Link rate=%s, WWN=%08X%08X\n" , |
2167 | path_status_desc[j].desc, path_type_desc[i].desc, |
2168 | ipr_format_res_path(hostrcb->ioa_cfg, |
2169 | cfg->res_path, buffer, sizeof(buffer)), |
2170 | link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK], |
2171 | be32_to_cpu(cfg->wwid[0]), |
2172 | be32_to_cpu(cfg->wwid[1])); |
2173 | return; |
2174 | } |
2175 | } |
2176 | ipr_hcam_err(hostrcb, "Path element=%02X: Resource Path=%s, Link rate=%s " |
2177 | "WWN=%08X%08X\n" , cfg->type_status, |
2178 | ipr_format_res_path(hostrcb->ioa_cfg, |
2179 | cfg->res_path, buffer, sizeof(buffer)), |
2180 | link_rate[cfg->link_rate & IPR_PHY_LINK_RATE_MASK], |
2181 | be32_to_cpu(cfg->wwid[0]), be32_to_cpu(cfg->wwid[1])); |
2182 | } |
2183 | |
2184 | /** |
2185 | * ipr_log_fabric_error - Log a fabric error. |
2186 | * @ioa_cfg: ioa config struct |
2187 | * @hostrcb: hostrcb struct |
2188 | * |
2189 | * Return value: |
2190 | * none |
2191 | **/ |
2192 | static void ipr_log_fabric_error(struct ipr_ioa_cfg *ioa_cfg, |
2193 | struct ipr_hostrcb *hostrcb) |
2194 | { |
2195 | struct ipr_hostrcb_type_20_error *error; |
2196 | struct ipr_hostrcb_fabric_desc *fabric; |
2197 | struct ipr_hostrcb_config_element *cfg; |
2198 | int i, add_len; |
2199 | |
2200 | error = &hostrcb->hcam.u.error.u.type_20_error; |
2201 | error->failure_reason[sizeof(error->failure_reason) - 1] = '\0'; |
2202 | ipr_hcam_err(hostrcb, "%s\n" , error->failure_reason); |
2203 | |
2204 | add_len = be32_to_cpu(hostrcb->hcam.length) - |
2205 | (offsetof(struct ipr_hostrcb_error, u) + |
2206 | offsetof(struct ipr_hostrcb_type_20_error, desc)); |
2207 | |
2208 | for (i = 0, fabric = error->desc; i < error->num_entries; i++) { |
2209 | ipr_log_fabric_path(hostrcb, fabric); |
2210 | for_each_fabric_cfg(fabric, cfg) |
2211 | ipr_log_path_elem(hostrcb, cfg); |
2212 | |
2213 | add_len -= be16_to_cpu(fabric->length); |
2214 | fabric = (struct ipr_hostrcb_fabric_desc *) |
2215 | ((unsigned long)fabric + be16_to_cpu(fabric->length)); |
2216 | } |
2217 | |
2218 | ipr_log_hex_data(ioa_cfg, data: (__be32 *)fabric, len: add_len); |
2219 | } |
2220 | |
2221 | /** |
2222 | * ipr_log_sis64_array_error - Log a sis64 array error. |
2223 | * @ioa_cfg: ioa config struct |
2224 | * @hostrcb: hostrcb struct |
2225 | * |
2226 | * Return value: |
2227 | * none |
2228 | **/ |
2229 | static void ipr_log_sis64_array_error(struct ipr_ioa_cfg *ioa_cfg, |
2230 | struct ipr_hostrcb *hostrcb) |
2231 | { |
2232 | int i, num_entries; |
2233 | struct ipr_hostrcb_type_24_error *error; |
2234 | struct ipr_hostrcb64_array_data_entry *array_entry; |
2235 | char buffer[IPR_MAX_RES_PATH_LENGTH]; |
2236 | const u8 zero_sn[IPR_SERIAL_NUM_LEN] = { [0 ... IPR_SERIAL_NUM_LEN-1] = '0' }; |
2237 | |
2238 | error = &hostrcb->hcam.u.error64.u.type_24_error; |
2239 | |
2240 | ipr_err_separator; |
2241 | |
2242 | ipr_err("RAID %s Array Configuration: %s\n" , |
2243 | error->protection_level, |
2244 | ipr_format_res_path(ioa_cfg, error->last_res_path, |
2245 | buffer, sizeof(buffer))); |
2246 | |
2247 | ipr_err_separator; |
2248 | |
2249 | array_entry = error->array_member; |
2250 | num_entries = min_t(u32, error->num_entries, |
2251 | ARRAY_SIZE(error->array_member)); |
2252 | |
2253 | for (i = 0; i < num_entries; i++, array_entry++) { |
2254 | |
2255 | if (!memcmp(p: array_entry->vpd.vpd.sn, q: zero_sn, IPR_SERIAL_NUM_LEN)) |
2256 | continue; |
2257 | |
2258 | if (error->exposed_mode_adn == i) |
2259 | ipr_err("Exposed Array Member %d:\n" , i); |
2260 | else |
2261 | ipr_err("Array Member %d:\n" , i); |
2262 | |
2263 | ipr_err("Array Member %d:\n" , i); |
2264 | ipr_log_ext_vpd(vpd: &array_entry->vpd); |
2265 | ipr_err("Current Location: %s\n" , |
2266 | ipr_format_res_path(ioa_cfg, array_entry->res_path, |
2267 | buffer, sizeof(buffer))); |
2268 | ipr_err("Expected Location: %s\n" , |
2269 | ipr_format_res_path(ioa_cfg, |
2270 | array_entry->expected_res_path, |
2271 | buffer, sizeof(buffer))); |
2272 | |
2273 | ipr_err_separator; |
2274 | } |
2275 | } |
2276 | |
2277 | /** |
2278 | * ipr_log_sis64_fabric_error - Log a sis64 fabric error. |
2279 | * @ioa_cfg: ioa config struct |
2280 | * @hostrcb: hostrcb struct |
2281 | * |
2282 | * Return value: |
2283 | * none |
2284 | **/ |
2285 | static void ipr_log_sis64_fabric_error(struct ipr_ioa_cfg *ioa_cfg, |
2286 | struct ipr_hostrcb *hostrcb) |
2287 | { |
2288 | struct ipr_hostrcb_type_30_error *error; |
2289 | struct ipr_hostrcb64_fabric_desc *fabric; |
2290 | struct ipr_hostrcb64_config_element *cfg; |
2291 | int i, add_len; |
2292 | |
2293 | error = &hostrcb->hcam.u.error64.u.type_30_error; |
2294 | |
2295 | error->failure_reason[sizeof(error->failure_reason) - 1] = '\0'; |
2296 | ipr_hcam_err(hostrcb, "%s\n" , error->failure_reason); |
2297 | |
2298 | add_len = be32_to_cpu(hostrcb->hcam.length) - |
2299 | (offsetof(struct ipr_hostrcb64_error, u) + |
2300 | offsetof(struct ipr_hostrcb_type_30_error, desc)); |
2301 | |
2302 | for (i = 0, fabric = error->desc; i < error->num_entries; i++) { |
2303 | ipr_log64_fabric_path(hostrcb, fabric); |
2304 | for_each_fabric_cfg(fabric, cfg) |
2305 | ipr_log64_path_elem(hostrcb, cfg); |
2306 | |
2307 | add_len -= be16_to_cpu(fabric->length); |
2308 | fabric = (struct ipr_hostrcb64_fabric_desc *) |
2309 | ((unsigned long)fabric + be16_to_cpu(fabric->length)); |
2310 | } |
2311 | |
2312 | ipr_log_hex_data(ioa_cfg, data: (__be32 *)fabric, len: add_len); |
2313 | } |
2314 | |
2315 | /** |
2316 | * ipr_log_sis64_service_required_error - Log a sis64 service required error. |
2317 | * @ioa_cfg: ioa config struct |
2318 | * @hostrcb: hostrcb struct |
2319 | * |
2320 | * Return value: |
2321 | * none |
2322 | **/ |
2323 | static void ipr_log_sis64_service_required_error(struct ipr_ioa_cfg *ioa_cfg, |
2324 | struct ipr_hostrcb *hostrcb) |
2325 | { |
2326 | struct ipr_hostrcb_type_41_error *error; |
2327 | |
2328 | error = &hostrcb->hcam.u.error64.u.type_41_error; |
2329 | |
2330 | error->failure_reason[sizeof(error->failure_reason) - 1] = '\0'; |
2331 | ipr_err("Primary Failure Reason: %s\n" , error->failure_reason); |
2332 | ipr_log_hex_data(ioa_cfg, data: error->data, |
2333 | be32_to_cpu(hostrcb->hcam.length) - |
2334 | (offsetof(struct ipr_hostrcb_error, u) + |
2335 | offsetof(struct ipr_hostrcb_type_41_error, data))); |
2336 | } |
2337 | /** |
2338 | * ipr_log_generic_error - Log an adapter error. |
2339 | * @ioa_cfg: ioa config struct |
2340 | * @hostrcb: hostrcb struct |
2341 | * |
2342 | * Return value: |
2343 | * none |
2344 | **/ |
2345 | static void ipr_log_generic_error(struct ipr_ioa_cfg *ioa_cfg, |
2346 | struct ipr_hostrcb *hostrcb) |
2347 | { |
2348 | ipr_log_hex_data(ioa_cfg, data: hostrcb->hcam.u.raw.data, |
2349 | be32_to_cpu(hostrcb->hcam.length)); |
2350 | } |
2351 | |
2352 | /** |
2353 | * ipr_log_sis64_device_error - Log a cache error. |
2354 | * @ioa_cfg: ioa config struct |
2355 | * @hostrcb: hostrcb struct |
2356 | * |
2357 | * Return value: |
2358 | * none |
2359 | **/ |
2360 | static void ipr_log_sis64_device_error(struct ipr_ioa_cfg *ioa_cfg, |
2361 | struct ipr_hostrcb *hostrcb) |
2362 | { |
2363 | struct ipr_hostrcb_type_21_error *error; |
2364 | char buffer[IPR_MAX_RES_PATH_LENGTH]; |
2365 | |
2366 | error = &hostrcb->hcam.u.error64.u.type_21_error; |
2367 | |
2368 | ipr_err("-----Failing Device Information-----\n" ); |
2369 | ipr_err("World Wide Unique ID: %08X%08X%08X%08X\n" , |
2370 | be32_to_cpu(error->wwn[0]), be32_to_cpu(error->wwn[1]), |
2371 | be32_to_cpu(error->wwn[2]), be32_to_cpu(error->wwn[3])); |
2372 | ipr_err("Device Resource Path: %s\n" , |
2373 | __ipr_format_res_path(error->res_path, |
2374 | buffer, sizeof(buffer))); |
2375 | error->primary_problem_desc[sizeof(error->primary_problem_desc) - 1] = '\0'; |
2376 | error->second_problem_desc[sizeof(error->second_problem_desc) - 1] = '\0'; |
2377 | ipr_err("Primary Problem Description: %s\n" , error->primary_problem_desc); |
2378 | ipr_err("Secondary Problem Description: %s\n" , error->second_problem_desc); |
2379 | ipr_err("SCSI Sense Data:\n" ); |
2380 | ipr_log_hex_data(ioa_cfg, data: error->sense_data, len: sizeof(error->sense_data)); |
2381 | ipr_err("SCSI Command Descriptor Block: \n" ); |
2382 | ipr_log_hex_data(ioa_cfg, data: error->cdb, len: sizeof(error->cdb)); |
2383 | |
2384 | ipr_err("Additional IOA Data:\n" ); |
2385 | ipr_log_hex_data(ioa_cfg, data: error->ioa_data, be32_to_cpu(error->length_of_error)); |
2386 | } |
2387 | |
2388 | /** |
2389 | * ipr_get_error - Find the specfied IOASC in the ipr_error_table. |
2390 | * @ioasc: IOASC |
2391 | * |
2392 | * This function will return the index of into the ipr_error_table |
2393 | * for the specified IOASC. If the IOASC is not in the table, |
2394 | * 0 will be returned, which points to the entry used for unknown errors. |
2395 | * |
2396 | * Return value: |
2397 | * index into the ipr_error_table |
2398 | **/ |
2399 | static u32 ipr_get_error(u32 ioasc) |
2400 | { |
2401 | int i; |
2402 | |
2403 | for (i = 0; i < ARRAY_SIZE(ipr_error_table); i++) |
2404 | if (ipr_error_table[i].ioasc == (ioasc & IPR_IOASC_IOASC_MASK)) |
2405 | return i; |
2406 | |
2407 | return 0; |
2408 | } |
2409 | |
2410 | /** |
2411 | * ipr_handle_log_data - Log an adapter error. |
2412 | * @ioa_cfg: ioa config struct |
2413 | * @hostrcb: hostrcb struct |
2414 | * |
2415 | * This function logs an adapter error to the system. |
2416 | * |
2417 | * Return value: |
2418 | * none |
2419 | **/ |
2420 | static void ipr_handle_log_data(struct ipr_ioa_cfg *ioa_cfg, |
2421 | struct ipr_hostrcb *hostrcb) |
2422 | { |
2423 | u32 ioasc; |
2424 | int error_index; |
2425 | struct ipr_hostrcb_type_21_error *error; |
2426 | |
2427 | if (hostrcb->hcam.notify_type != IPR_HOST_RCB_NOTIF_TYPE_ERROR_LOG_ENTRY) |
2428 | return; |
2429 | |
2430 | if (hostrcb->hcam.notifications_lost == IPR_HOST_RCB_NOTIFICATIONS_LOST) |
2431 | dev_err(&ioa_cfg->pdev->dev, "Error notifications lost\n" ); |
2432 | |
2433 | if (ioa_cfg->sis64) |
2434 | ioasc = be32_to_cpu(hostrcb->hcam.u.error64.fd_ioasc); |
2435 | else |
2436 | ioasc = be32_to_cpu(hostrcb->hcam.u.error.fd_ioasc); |
2437 | |
2438 | if (!ioa_cfg->sis64 && (ioasc == IPR_IOASC_BUS_WAS_RESET || |
2439 | ioasc == IPR_IOASC_BUS_WAS_RESET_BY_OTHER)) { |
2440 | /* Tell the midlayer we had a bus reset so it will handle the UA properly */ |
2441 | scsi_report_bus_reset(ioa_cfg->host, |
2442 | hostrcb->hcam.u.error.fd_res_addr.bus); |
2443 | } |
2444 | |
2445 | error_index = ipr_get_error(ioasc); |
2446 | |
2447 | if (!ipr_error_table[error_index].log_hcam) |
2448 | return; |
2449 | |
2450 | if (ioasc == IPR_IOASC_HW_CMD_FAILED && |
2451 | hostrcb->hcam.overlay_id == IPR_HOST_RCB_OVERLAY_ID_21) { |
2452 | error = &hostrcb->hcam.u.error64.u.type_21_error; |
2453 | |
2454 | if (((be32_to_cpu(error->sense_data[0]) & 0x0000ff00) >> 8) == ILLEGAL_REQUEST && |
2455 | ioa_cfg->log_level <= IPR_DEFAULT_LOG_LEVEL) |
2456 | return; |
2457 | } |
2458 | |
2459 | ipr_hcam_err(hostrcb, "%s\n" , ipr_error_table[error_index].error); |
2460 | |
2461 | /* Set indication we have logged an error */ |
2462 | ioa_cfg->errors_logged++; |
2463 | |
2464 | if (ioa_cfg->log_level < ipr_error_table[error_index].log_hcam) |
2465 | return; |
2466 | if (be32_to_cpu(hostrcb->hcam.length) > sizeof(hostrcb->hcam.u.raw)) |
2467 | hostrcb->hcam.length = cpu_to_be32(sizeof(hostrcb->hcam.u.raw)); |
2468 | |
2469 | switch (hostrcb->hcam.overlay_id) { |
2470 | case IPR_HOST_RCB_OVERLAY_ID_2: |
2471 | ipr_log_cache_error(ioa_cfg, hostrcb); |
2472 | break; |
2473 | case IPR_HOST_RCB_OVERLAY_ID_3: |
2474 | ipr_log_config_error(ioa_cfg, hostrcb); |
2475 | break; |
2476 | case IPR_HOST_RCB_OVERLAY_ID_4: |
2477 | case IPR_HOST_RCB_OVERLAY_ID_6: |
2478 | ipr_log_array_error(ioa_cfg, hostrcb); |
2479 | break; |
2480 | case IPR_HOST_RCB_OVERLAY_ID_7: |
2481 | ipr_log_dual_ioa_error(ioa_cfg, hostrcb); |
2482 | break; |
2483 | case IPR_HOST_RCB_OVERLAY_ID_12: |
2484 | ipr_log_enhanced_cache_error(ioa_cfg, hostrcb); |
2485 | break; |
2486 | case IPR_HOST_RCB_OVERLAY_ID_13: |
2487 | ipr_log_enhanced_config_error(ioa_cfg, hostrcb); |
2488 | break; |
2489 | case IPR_HOST_RCB_OVERLAY_ID_14: |
2490 | case IPR_HOST_RCB_OVERLAY_ID_16: |
2491 | ipr_log_enhanced_array_error(ioa_cfg, hostrcb); |
2492 | break; |
2493 | case IPR_HOST_RCB_OVERLAY_ID_17: |
2494 | ipr_log_enhanced_dual_ioa_error(ioa_cfg, hostrcb); |
2495 | break; |
2496 | case IPR_HOST_RCB_OVERLAY_ID_20: |
2497 | ipr_log_fabric_error(ioa_cfg, hostrcb); |
2498 | break; |
2499 | case IPR_HOST_RCB_OVERLAY_ID_21: |
2500 | ipr_log_sis64_device_error(ioa_cfg, hostrcb); |
2501 | break; |
2502 | case IPR_HOST_RCB_OVERLAY_ID_23: |
2503 | ipr_log_sis64_config_error(ioa_cfg, hostrcb); |
2504 | break; |
2505 | case IPR_HOST_RCB_OVERLAY_ID_24: |
2506 | case IPR_HOST_RCB_OVERLAY_ID_26: |
2507 | ipr_log_sis64_array_error(ioa_cfg, hostrcb); |
2508 | break; |
2509 | case IPR_HOST_RCB_OVERLAY_ID_30: |
2510 | ipr_log_sis64_fabric_error(ioa_cfg, hostrcb); |
2511 | break; |
2512 | case IPR_HOST_RCB_OVERLAY_ID_41: |
2513 | ipr_log_sis64_service_required_error(ioa_cfg, hostrcb); |
2514 | break; |
2515 | case IPR_HOST_RCB_OVERLAY_ID_1: |
2516 | case IPR_HOST_RCB_OVERLAY_ID_DEFAULT: |
2517 | default: |
2518 | ipr_log_generic_error(ioa_cfg, hostrcb); |
2519 | break; |
2520 | } |
2521 | } |
2522 | |
2523 | static struct ipr_hostrcb *ipr_get_free_hostrcb(struct ipr_ioa_cfg *ioa) |
2524 | { |
2525 | struct ipr_hostrcb *hostrcb; |
2526 | |
2527 | hostrcb = list_first_entry_or_null(&ioa->hostrcb_free_q, |
2528 | struct ipr_hostrcb, queue); |
2529 | |
2530 | if (unlikely(!hostrcb)) { |
2531 | dev_info(&ioa->pdev->dev, "Reclaiming async error buffers." ); |
2532 | hostrcb = list_first_entry_or_null(&ioa->hostrcb_report_q, |
2533 | struct ipr_hostrcb, queue); |
2534 | } |
2535 | |
2536 | list_del_init(entry: &hostrcb->queue); |
2537 | return hostrcb; |
2538 | } |
2539 | |
2540 | /** |
2541 | * ipr_process_error - Op done function for an adapter error log. |
2542 | * @ipr_cmd: ipr command struct |
2543 | * |
2544 | * This function is the op done function for an error log host |
2545 | * controlled async from the adapter. It will log the error and |
2546 | * send the HCAM back to the adapter. |
2547 | * |
2548 | * Return value: |
2549 | * none |
2550 | **/ |
2551 | static void ipr_process_error(struct ipr_cmnd *ipr_cmd) |
2552 | { |
2553 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; |
2554 | struct ipr_hostrcb *hostrcb = ipr_cmd->u.hostrcb; |
2555 | u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc); |
2556 | u32 fd_ioasc; |
2557 | |
2558 | if (ioa_cfg->sis64) |
2559 | fd_ioasc = be32_to_cpu(hostrcb->hcam.u.error64.fd_ioasc); |
2560 | else |
2561 | fd_ioasc = be32_to_cpu(hostrcb->hcam.u.error.fd_ioasc); |
2562 | |
2563 | list_del_init(entry: &hostrcb->queue); |
2564 | list_add_tail(new: &ipr_cmd->queue, head: &ipr_cmd->hrrq->hrrq_free_q); |
2565 | |
2566 | if (!ioasc) { |
2567 | ipr_handle_log_data(ioa_cfg, hostrcb); |
2568 | if (fd_ioasc == IPR_IOASC_NR_IOA_RESET_REQUIRED) |
2569 | ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_ABBREV); |
2570 | } else if (ioasc != IPR_IOASC_IOA_WAS_RESET && |
2571 | ioasc != IPR_IOASC_ABORTED_CMD_TERM_BY_HOST) { |
2572 | dev_err(&ioa_cfg->pdev->dev, |
2573 | "Host RCB failed with IOASC: 0x%08X\n" , ioasc); |
2574 | } |
2575 | |
2576 | list_add_tail(new: &hostrcb->queue, head: &ioa_cfg->hostrcb_report_q); |
2577 | schedule_work(work: &ioa_cfg->work_q); |
2578 | hostrcb = ipr_get_free_hostrcb(ioa: ioa_cfg); |
2579 | |
2580 | ipr_send_hcam(ioa_cfg, IPR_HCAM_CDB_OP_CODE_LOG_DATA, hostrcb); |
2581 | } |
2582 | |
2583 | /** |
2584 | * ipr_timeout - An internally generated op has timed out. |
2585 | * @t: Timer context used to fetch ipr command struct |
2586 | * |
2587 | * This function blocks host requests and initiates an |
2588 | * adapter reset. |
2589 | * |
2590 | * Return value: |
2591 | * none |
2592 | **/ |
2593 | static void ipr_timeout(struct timer_list *t) |
2594 | { |
2595 | struct ipr_cmnd *ipr_cmd = from_timer(ipr_cmd, t, timer); |
2596 | unsigned long lock_flags = 0; |
2597 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; |
2598 | |
2599 | ENTER; |
2600 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); |
2601 | |
2602 | ioa_cfg->errors_logged++; |
2603 | dev_err(&ioa_cfg->pdev->dev, |
2604 | "Adapter being reset due to command timeout.\n" ); |
2605 | |
2606 | if (WAIT_FOR_DUMP == ioa_cfg->sdt_state) |
2607 | ioa_cfg->sdt_state = GET_DUMP; |
2608 | |
2609 | if (!ioa_cfg->in_reset_reload || ioa_cfg->reset_cmd == ipr_cmd) |
2610 | ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE); |
2611 | |
2612 | spin_unlock_irqrestore(lock: ioa_cfg->host->host_lock, flags: lock_flags); |
2613 | LEAVE; |
2614 | } |
2615 | |
2616 | /** |
2617 | * ipr_oper_timeout - Adapter timed out transitioning to operational |
2618 | * @t: Timer context used to fetch ipr command struct |
2619 | * |
2620 | * This function blocks host requests and initiates an |
2621 | * adapter reset. |
2622 | * |
2623 | * Return value: |
2624 | * none |
2625 | **/ |
2626 | static void ipr_oper_timeout(struct timer_list *t) |
2627 | { |
2628 | struct ipr_cmnd *ipr_cmd = from_timer(ipr_cmd, t, timer); |
2629 | unsigned long lock_flags = 0; |
2630 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; |
2631 | |
2632 | ENTER; |
2633 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); |
2634 | |
2635 | ioa_cfg->errors_logged++; |
2636 | dev_err(&ioa_cfg->pdev->dev, |
2637 | "Adapter timed out transitioning to operational.\n" ); |
2638 | |
2639 | if (WAIT_FOR_DUMP == ioa_cfg->sdt_state) |
2640 | ioa_cfg->sdt_state = GET_DUMP; |
2641 | |
2642 | if (!ioa_cfg->in_reset_reload || ioa_cfg->reset_cmd == ipr_cmd) { |
2643 | if (ipr_fastfail) |
2644 | ioa_cfg->reset_retries += IPR_NUM_RESET_RELOAD_RETRIES; |
2645 | ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE); |
2646 | } |
2647 | |
2648 | spin_unlock_irqrestore(lock: ioa_cfg->host->host_lock, flags: lock_flags); |
2649 | LEAVE; |
2650 | } |
2651 | |
2652 | /** |
2653 | * ipr_find_ses_entry - Find matching SES in SES table |
2654 | * @res: resource entry struct of SES |
2655 | * |
2656 | * Return value: |
2657 | * pointer to SES table entry / NULL on failure |
2658 | **/ |
2659 | static const struct ipr_ses_table_entry * |
2660 | ipr_find_ses_entry(struct ipr_resource_entry *res) |
2661 | { |
2662 | int i, j, matches; |
2663 | struct ipr_std_inq_vpids *vpids; |
2664 | const struct ipr_ses_table_entry *ste = ipr_ses_table; |
2665 | |
2666 | for (i = 0; i < ARRAY_SIZE(ipr_ses_table); i++, ste++) { |
2667 | for (j = 0, matches = 0; j < IPR_PROD_ID_LEN; j++) { |
2668 | if (ste->compare_product_id_byte[j] == 'X') { |
2669 | vpids = &res->std_inq_data.vpids; |
2670 | if (vpids->product_id[j] == ste->product_id[j]) |
2671 | matches++; |
2672 | else |
2673 | break; |
2674 | } else |
2675 | matches++; |
2676 | } |
2677 | |
2678 | if (matches == IPR_PROD_ID_LEN) |
2679 | return ste; |
2680 | } |
2681 | |
2682 | return NULL; |
2683 | } |
2684 | |
2685 | /** |
2686 | * ipr_get_max_scsi_speed - Determine max SCSI speed for a given bus |
2687 | * @ioa_cfg: ioa config struct |
2688 | * @bus: SCSI bus |
2689 | * @bus_width: bus width |
2690 | * |
2691 | * Return value: |
2692 | * SCSI bus speed in units of 100KHz, 1600 is 160 MHz |
2693 | * For a 2-byte wide SCSI bus, the maximum transfer speed is |
2694 | * twice the maximum transfer rate (e.g. for a wide enabled bus, |
2695 | * max 160MHz = max 320MB/sec). |
2696 | **/ |
2697 | static u32 ipr_get_max_scsi_speed(struct ipr_ioa_cfg *ioa_cfg, u8 bus, u8 bus_width) |
2698 | { |
2699 | struct ipr_resource_entry *res; |
2700 | const struct ipr_ses_table_entry *ste; |
2701 | u32 max_xfer_rate = IPR_MAX_SCSI_RATE(bus_width); |
2702 | |
2703 | /* Loop through each config table entry in the config table buffer */ |
2704 | list_for_each_entry(res, &ioa_cfg->used_res_q, queue) { |
2705 | if (!(IPR_IS_SES_DEVICE(res->std_inq_data))) |
2706 | continue; |
2707 | |
2708 | if (bus != res->bus) |
2709 | continue; |
2710 | |
2711 | if (!(ste = ipr_find_ses_entry(res))) |
2712 | continue; |
2713 | |
2714 | max_xfer_rate = (ste->max_bus_speed_limit * 10) / (bus_width / 8); |
2715 | } |
2716 | |
2717 | return max_xfer_rate; |
2718 | } |
2719 | |
2720 | /** |
2721 | * ipr_wait_iodbg_ack - Wait for an IODEBUG ACK from the IOA |
2722 | * @ioa_cfg: ioa config struct |
2723 | * @max_delay: max delay in micro-seconds to wait |
2724 | * |
2725 | * Waits for an IODEBUG ACK from the IOA, doing busy looping. |
2726 | * |
2727 | * Return value: |
2728 | * 0 on success / other on failure |
2729 | **/ |
2730 | static int ipr_wait_iodbg_ack(struct ipr_ioa_cfg *ioa_cfg, int max_delay) |
2731 | { |
2732 | volatile u32 pcii_reg; |
2733 | int delay = 1; |
2734 | |
2735 | /* Read interrupt reg until IOA signals IO Debug Acknowledge */ |
2736 | while (delay < max_delay) { |
2737 | pcii_reg = readl(addr: ioa_cfg->regs.sense_interrupt_reg); |
2738 | |
2739 | if (pcii_reg & IPR_PCII_IO_DEBUG_ACKNOWLEDGE) |
2740 | return 0; |
2741 | |
2742 | /* udelay cannot be used if delay is more than a few milliseconds */ |
2743 | if ((delay / 1000) > MAX_UDELAY_MS) |
2744 | mdelay(delay / 1000); |
2745 | else |
2746 | udelay(delay); |
2747 | |
2748 | delay += delay; |
2749 | } |
2750 | return -EIO; |
2751 | } |
2752 | |
2753 | /** |
2754 | * ipr_get_sis64_dump_data_section - Dump IOA memory |
2755 | * @ioa_cfg: ioa config struct |
2756 | * @start_addr: adapter address to dump |
2757 | * @dest: destination kernel buffer |
2758 | * @length_in_words: length to dump in 4 byte words |
2759 | * |
2760 | * Return value: |
2761 | * 0 on success |
2762 | **/ |
2763 | static int ipr_get_sis64_dump_data_section(struct ipr_ioa_cfg *ioa_cfg, |
2764 | u32 start_addr, |
2765 | __be32 *dest, u32 length_in_words) |
2766 | { |
2767 | int i; |
2768 | |
2769 | for (i = 0; i < length_in_words; i++) { |
2770 | writel(val: start_addr+(i*4), addr: ioa_cfg->regs.dump_addr_reg); |
2771 | *dest = cpu_to_be32(readl(ioa_cfg->regs.dump_data_reg)); |
2772 | dest++; |
2773 | } |
2774 | |
2775 | return 0; |
2776 | } |
2777 | |
2778 | /** |
2779 | * ipr_get_ldump_data_section - Dump IOA memory |
2780 | * @ioa_cfg: ioa config struct |
2781 | * @start_addr: adapter address to dump |
2782 | * @dest: destination kernel buffer |
2783 | * @length_in_words: length to dump in 4 byte words |
2784 | * |
2785 | * Return value: |
2786 | * 0 on success / -EIO on failure |
2787 | **/ |
2788 | static int ipr_get_ldump_data_section(struct ipr_ioa_cfg *ioa_cfg, |
2789 | u32 start_addr, |
2790 | __be32 *dest, u32 length_in_words) |
2791 | { |
2792 | volatile u32 temp_pcii_reg; |
2793 | int i, delay = 0; |
2794 | |
2795 | if (ioa_cfg->sis64) |
2796 | return ipr_get_sis64_dump_data_section(ioa_cfg, start_addr, |
2797 | dest, length_in_words); |
2798 | |
2799 | /* Write IOA interrupt reg starting LDUMP state */ |
2800 | writel(val: (IPR_UPROCI_RESET_ALERT | IPR_UPROCI_IO_DEBUG_ALERT), |
2801 | addr: ioa_cfg->regs.set_uproc_interrupt_reg32); |
2802 | |
2803 | /* Wait for IO debug acknowledge */ |
2804 | if (ipr_wait_iodbg_ack(ioa_cfg, |
2805 | IPR_LDUMP_MAX_LONG_ACK_DELAY_IN_USEC)) { |
2806 | dev_err(&ioa_cfg->pdev->dev, |
2807 | "IOA dump long data transfer timeout\n" ); |
2808 | return -EIO; |
2809 | } |
2810 | |
2811 | /* Signal LDUMP interlocked - clear IO debug ack */ |
2812 | writel(IPR_PCII_IO_DEBUG_ACKNOWLEDGE, |
2813 | addr: ioa_cfg->regs.clr_interrupt_reg); |
2814 | |
2815 | /* Write Mailbox with starting address */ |
2816 | writel(val: start_addr, addr: ioa_cfg->ioa_mailbox); |
2817 | |
2818 | /* Signal address valid - clear IOA Reset alert */ |
2819 | writel(IPR_UPROCI_RESET_ALERT, |
2820 | addr: ioa_cfg->regs.clr_uproc_interrupt_reg32); |
2821 | |
2822 | for (i = 0; i < length_in_words; i++) { |
2823 | /* Wait for IO debug acknowledge */ |
2824 | if (ipr_wait_iodbg_ack(ioa_cfg, |
2825 | IPR_LDUMP_MAX_SHORT_ACK_DELAY_IN_USEC)) { |
2826 | dev_err(&ioa_cfg->pdev->dev, |
2827 | "IOA dump short data transfer timeout\n" ); |
2828 | return -EIO; |
2829 | } |
2830 | |
2831 | /* Read data from mailbox and increment destination pointer */ |
2832 | *dest = cpu_to_be32(readl(ioa_cfg->ioa_mailbox)); |
2833 | dest++; |
2834 | |
2835 | /* For all but the last word of data, signal data received */ |
2836 | if (i < (length_in_words - 1)) { |
2837 | /* Signal dump data received - Clear IO debug Ack */ |
2838 | writel(IPR_PCII_IO_DEBUG_ACKNOWLEDGE, |
2839 | addr: ioa_cfg->regs.clr_interrupt_reg); |
2840 | } |
2841 | } |
2842 | |
2843 | /* Signal end of block transfer. Set reset alert then clear IO debug ack */ |
2844 | writel(IPR_UPROCI_RESET_ALERT, |
2845 | addr: ioa_cfg->regs.set_uproc_interrupt_reg32); |
2846 | |
2847 | writel(IPR_UPROCI_IO_DEBUG_ALERT, |
2848 | addr: ioa_cfg->regs.clr_uproc_interrupt_reg32); |
2849 | |
2850 | /* Signal dump data received - Clear IO debug Ack */ |
2851 | writel(IPR_PCII_IO_DEBUG_ACKNOWLEDGE, |
2852 | addr: ioa_cfg->regs.clr_interrupt_reg); |
2853 | |
2854 | /* Wait for IOA to signal LDUMP exit - IOA reset alert will be cleared */ |
2855 | while (delay < IPR_LDUMP_MAX_SHORT_ACK_DELAY_IN_USEC) { |
2856 | temp_pcii_reg = |
2857 | readl(addr: ioa_cfg->regs.sense_uproc_interrupt_reg32); |
2858 | |
2859 | if (!(temp_pcii_reg & IPR_UPROCI_RESET_ALERT)) |
2860 | return 0; |
2861 | |
2862 | udelay(10); |
2863 | delay += 10; |
2864 | } |
2865 | |
2866 | return 0; |
2867 | } |
2868 | |
2869 | #ifdef CONFIG_SCSI_IPR_DUMP |
2870 | /** |
2871 | * ipr_sdt_copy - Copy Smart Dump Table to kernel buffer |
2872 | * @ioa_cfg: ioa config struct |
2873 | * @pci_address: adapter address |
2874 | * @length: length of data to copy |
2875 | * |
2876 | * Copy data from PCI adapter to kernel buffer. |
2877 | * Note: length MUST be a 4 byte multiple |
2878 | * Return value: |
2879 | * 0 on success / other on failure |
2880 | **/ |
2881 | static int ipr_sdt_copy(struct ipr_ioa_cfg *ioa_cfg, |
2882 | unsigned long pci_address, u32 length) |
2883 | { |
2884 | int bytes_copied = 0; |
2885 | int cur_len, rc, rem_len, rem_page_len, max_dump_size; |
2886 | __be32 *page; |
2887 | unsigned long lock_flags = 0; |
2888 | struct ipr_ioa_dump *ioa_dump = &ioa_cfg->dump->ioa_dump; |
2889 | |
2890 | if (ioa_cfg->sis64) |
2891 | max_dump_size = IPR_FMT3_MAX_IOA_DUMP_SIZE; |
2892 | else |
2893 | max_dump_size = IPR_FMT2_MAX_IOA_DUMP_SIZE; |
2894 | |
2895 | while (bytes_copied < length && |
2896 | (ioa_dump->hdr.len + bytes_copied) < max_dump_size) { |
2897 | if (ioa_dump->page_offset >= PAGE_SIZE || |
2898 | ioa_dump->page_offset == 0) { |
2899 | page = (__be32 *)__get_free_page(GFP_ATOMIC); |
2900 | |
2901 | if (!page) { |
2902 | ipr_trace; |
2903 | return bytes_copied; |
2904 | } |
2905 | |
2906 | ioa_dump->page_offset = 0; |
2907 | ioa_dump->ioa_data[ioa_dump->next_page_index] = page; |
2908 | ioa_dump->next_page_index++; |
2909 | } else |
2910 | page = ioa_dump->ioa_data[ioa_dump->next_page_index - 1]; |
2911 | |
2912 | rem_len = length - bytes_copied; |
2913 | rem_page_len = PAGE_SIZE - ioa_dump->page_offset; |
2914 | cur_len = min(rem_len, rem_page_len); |
2915 | |
2916 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); |
2917 | if (ioa_cfg->sdt_state == ABORT_DUMP) { |
2918 | rc = -EIO; |
2919 | } else { |
2920 | rc = ipr_get_ldump_data_section(ioa_cfg, |
2921 | start_addr: pci_address + bytes_copied, |
2922 | dest: &page[ioa_dump->page_offset / 4], |
2923 | length_in_words: (cur_len / sizeof(u32))); |
2924 | } |
2925 | spin_unlock_irqrestore(lock: ioa_cfg->host->host_lock, flags: lock_flags); |
2926 | |
2927 | if (!rc) { |
2928 | ioa_dump->page_offset += cur_len; |
2929 | bytes_copied += cur_len; |
2930 | } else { |
2931 | ipr_trace; |
2932 | break; |
2933 | } |
2934 | schedule(); |
2935 | } |
2936 | |
2937 | return bytes_copied; |
2938 | } |
2939 | |
2940 | /** |
2941 | * ipr_init_dump_entry_hdr - Initialize a dump entry header. |
2942 | * @hdr: dump entry header struct |
2943 | * |
2944 | * Return value: |
2945 | * nothing |
2946 | **/ |
2947 | static void ipr_init_dump_entry_hdr(struct ipr_dump_entry_header *hdr) |
2948 | { |
2949 | hdr->eye_catcher = IPR_DUMP_EYE_CATCHER; |
2950 | hdr->num_elems = 1; |
2951 | hdr->offset = sizeof(*hdr); |
2952 | hdr->status = IPR_DUMP_STATUS_SUCCESS; |
2953 | } |
2954 | |
2955 | /** |
2956 | * ipr_dump_ioa_type_data - Fill in the adapter type in the dump. |
2957 | * @ioa_cfg: ioa config struct |
2958 | * @driver_dump: driver dump struct |
2959 | * |
2960 | * Return value: |
2961 | * nothing |
2962 | **/ |
2963 | static void ipr_dump_ioa_type_data(struct ipr_ioa_cfg *ioa_cfg, |
2964 | struct ipr_driver_dump *driver_dump) |
2965 | { |
2966 | struct ipr_inquiry_page3 *ucode_vpd = &ioa_cfg->vpd_cbs->page3_data; |
2967 | |
2968 | ipr_init_dump_entry_hdr(hdr: &driver_dump->ioa_type_entry.hdr); |
2969 | driver_dump->ioa_type_entry.hdr.len = |
2970 | sizeof(struct ipr_dump_ioa_type_entry) - |
2971 | sizeof(struct ipr_dump_entry_header); |
2972 | driver_dump->ioa_type_entry.hdr.data_type = IPR_DUMP_DATA_TYPE_BINARY; |
2973 | driver_dump->ioa_type_entry.hdr.id = IPR_DUMP_DRIVER_TYPE_ID; |
2974 | driver_dump->ioa_type_entry.type = ioa_cfg->type; |
2975 | driver_dump->ioa_type_entry.fw_version = (ucode_vpd->major_release << 24) | |
2976 | (ucode_vpd->card_type << 16) | (ucode_vpd->minor_release[0] << 8) | |
2977 | ucode_vpd->minor_release[1]; |
2978 | driver_dump->hdr.num_entries++; |
2979 | } |
2980 | |
2981 | /** |
2982 | * ipr_dump_version_data - Fill in the driver version in the dump. |
2983 | * @ioa_cfg: ioa config struct |
2984 | * @driver_dump: driver dump struct |
2985 | * |
2986 | * Return value: |
2987 | * nothing |
2988 | **/ |
2989 | static void ipr_dump_version_data(struct ipr_ioa_cfg *ioa_cfg, |
2990 | struct ipr_driver_dump *driver_dump) |
2991 | { |
2992 | ipr_init_dump_entry_hdr(hdr: &driver_dump->version_entry.hdr); |
2993 | driver_dump->version_entry.hdr.len = |
2994 | sizeof(struct ipr_dump_version_entry) - |
2995 | sizeof(struct ipr_dump_entry_header); |
2996 | driver_dump->version_entry.hdr.data_type = IPR_DUMP_DATA_TYPE_ASCII; |
2997 | driver_dump->version_entry.hdr.id = IPR_DUMP_DRIVER_VERSION_ID; |
2998 | strcpy(p: driver_dump->version_entry.version, IPR_DRIVER_VERSION); |
2999 | driver_dump->hdr.num_entries++; |
3000 | } |
3001 | |
3002 | /** |
3003 | * ipr_dump_trace_data - Fill in the IOA trace in the dump. |
3004 | * @ioa_cfg: ioa config struct |
3005 | * @driver_dump: driver dump struct |
3006 | * |
3007 | * Return value: |
3008 | * nothing |
3009 | **/ |
3010 | static void ipr_dump_trace_data(struct ipr_ioa_cfg *ioa_cfg, |
3011 | struct ipr_driver_dump *driver_dump) |
3012 | { |
3013 | ipr_init_dump_entry_hdr(hdr: &driver_dump->trace_entry.hdr); |
3014 | driver_dump->trace_entry.hdr.len = |
3015 | sizeof(struct ipr_dump_trace_entry) - |
3016 | sizeof(struct ipr_dump_entry_header); |
3017 | driver_dump->trace_entry.hdr.data_type = IPR_DUMP_DATA_TYPE_BINARY; |
3018 | driver_dump->trace_entry.hdr.id = IPR_DUMP_TRACE_ID; |
3019 | memcpy(driver_dump->trace_entry.trace, ioa_cfg->trace, IPR_TRACE_SIZE); |
3020 | driver_dump->hdr.num_entries++; |
3021 | } |
3022 | |
3023 | /** |
3024 | * ipr_dump_location_data - Fill in the IOA location in the dump. |
3025 | * @ioa_cfg: ioa config struct |
3026 | * @driver_dump: driver dump struct |
3027 | * |
3028 | * Return value: |
3029 | * nothing |
3030 | **/ |
3031 | static void ipr_dump_location_data(struct ipr_ioa_cfg *ioa_cfg, |
3032 | struct ipr_driver_dump *driver_dump) |
3033 | { |
3034 | ipr_init_dump_entry_hdr(hdr: &driver_dump->location_entry.hdr); |
3035 | driver_dump->location_entry.hdr.len = |
3036 | sizeof(struct ipr_dump_location_entry) - |
3037 | sizeof(struct ipr_dump_entry_header); |
3038 | driver_dump->location_entry.hdr.data_type = IPR_DUMP_DATA_TYPE_ASCII; |
3039 | driver_dump->location_entry.hdr.id = IPR_DUMP_LOCATION_ID; |
3040 | strcpy(p: driver_dump->location_entry.location, q: dev_name(dev: &ioa_cfg->pdev->dev)); |
3041 | driver_dump->hdr.num_entries++; |
3042 | } |
3043 | |
3044 | /** |
3045 | * ipr_get_ioa_dump - Perform a dump of the driver and adapter. |
3046 | * @ioa_cfg: ioa config struct |
3047 | * @dump: dump struct |
3048 | * |
3049 | * Return value: |
3050 | * nothing |
3051 | **/ |
3052 | static void ipr_get_ioa_dump(struct ipr_ioa_cfg *ioa_cfg, struct ipr_dump *dump) |
3053 | { |
3054 | unsigned long start_addr, sdt_word; |
3055 | unsigned long lock_flags = 0; |
3056 | struct ipr_driver_dump *driver_dump = &dump->driver_dump; |
3057 | struct ipr_ioa_dump *ioa_dump = &dump->ioa_dump; |
3058 | u32 num_entries, max_num_entries, start_off, end_off; |
3059 | u32 max_dump_size, bytes_to_copy, bytes_copied, rc; |
3060 | struct ipr_sdt *sdt; |
3061 | int valid = 1; |
3062 | int i; |
3063 | |
3064 | ENTER; |
3065 | |
3066 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); |
3067 | |
3068 | if (ioa_cfg->sdt_state != READ_DUMP) { |
3069 | spin_unlock_irqrestore(lock: ioa_cfg->host->host_lock, flags: lock_flags); |
3070 | return; |
3071 | } |
3072 | |
3073 | if (ioa_cfg->sis64) { |
3074 | spin_unlock_irqrestore(lock: ioa_cfg->host->host_lock, flags: lock_flags); |
3075 | ssleep(IPR_DUMP_DELAY_SECONDS); |
3076 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); |
3077 | } |
3078 | |
3079 | start_addr = readl(addr: ioa_cfg->ioa_mailbox); |
3080 | |
3081 | if (!ioa_cfg->sis64 && !ipr_sdt_is_fmt2(sdt_word: start_addr)) { |
3082 | dev_err(&ioa_cfg->pdev->dev, |
3083 | "Invalid dump table format: %lx\n" , start_addr); |
3084 | spin_unlock_irqrestore(lock: ioa_cfg->host->host_lock, flags: lock_flags); |
3085 | return; |
3086 | } |
3087 | |
3088 | dev_err(&ioa_cfg->pdev->dev, "Dump of IOA initiated\n" ); |
3089 | |
3090 | driver_dump->hdr.eye_catcher = IPR_DUMP_EYE_CATCHER; |
3091 | |
3092 | /* Initialize the overall dump header */ |
3093 | driver_dump->hdr.len = sizeof(struct ipr_driver_dump); |
3094 | driver_dump->hdr.num_entries = 1; |
3095 | driver_dump->hdr.first_entry_offset = sizeof(struct ipr_dump_header); |
3096 | driver_dump->hdr.status = IPR_DUMP_STATUS_SUCCESS; |
3097 | driver_dump->hdr.os = IPR_DUMP_OS_LINUX; |
3098 | driver_dump->hdr.driver_name = IPR_DUMP_DRIVER_NAME; |
3099 | |
3100 | ipr_dump_version_data(ioa_cfg, driver_dump); |
3101 | ipr_dump_location_data(ioa_cfg, driver_dump); |
3102 | ipr_dump_ioa_type_data(ioa_cfg, driver_dump); |
3103 | ipr_dump_trace_data(ioa_cfg, driver_dump); |
3104 | |
3105 | /* Update dump_header */ |
3106 | driver_dump->hdr.len += sizeof(struct ipr_dump_entry_header); |
3107 | |
3108 | /* IOA Dump entry */ |
3109 | ipr_init_dump_entry_hdr(hdr: &ioa_dump->hdr); |
3110 | ioa_dump->hdr.len = 0; |
3111 | ioa_dump->hdr.data_type = IPR_DUMP_DATA_TYPE_BINARY; |
3112 | ioa_dump->hdr.id = IPR_DUMP_IOA_DUMP_ID; |
3113 | |
3114 | /* First entries in sdt are actually a list of dump addresses and |
3115 | lengths to gather the real dump data. sdt represents the pointer |
3116 | to the ioa generated dump table. Dump data will be extracted based |
3117 | on entries in this table */ |
3118 | sdt = &ioa_dump->sdt; |
3119 | |
3120 | if (ioa_cfg->sis64) { |
3121 | max_num_entries = IPR_FMT3_NUM_SDT_ENTRIES; |
3122 | max_dump_size = IPR_FMT3_MAX_IOA_DUMP_SIZE; |
3123 | } else { |
3124 | max_num_entries = IPR_FMT2_NUM_SDT_ENTRIES; |
3125 | max_dump_size = IPR_FMT2_MAX_IOA_DUMP_SIZE; |
3126 | } |
3127 | |
3128 | bytes_to_copy = offsetof(struct ipr_sdt, entry) + |
3129 | (max_num_entries * sizeof(struct ipr_sdt_entry)); |
3130 | rc = ipr_get_ldump_data_section(ioa_cfg, start_addr, dest: (__be32 *)sdt, |
3131 | length_in_words: bytes_to_copy / sizeof(__be32)); |
3132 | |
3133 | /* Smart Dump table is ready to use and the first entry is valid */ |
3134 | if (rc || ((be32_to_cpu(sdt->hdr.state) != IPR_FMT3_SDT_READY_TO_USE) && |
3135 | (be32_to_cpu(sdt->hdr.state) != IPR_FMT2_SDT_READY_TO_USE))) { |
3136 | dev_err(&ioa_cfg->pdev->dev, |
3137 | "Dump of IOA failed. Dump table not valid: %d, %X.\n" , |
3138 | rc, be32_to_cpu(sdt->hdr.state)); |
3139 | driver_dump->hdr.status = IPR_DUMP_STATUS_FAILED; |
3140 | ioa_cfg->sdt_state = DUMP_OBTAINED; |
3141 | spin_unlock_irqrestore(lock: ioa_cfg->host->host_lock, flags: lock_flags); |
3142 | return; |
3143 | } |
3144 | |
3145 | num_entries = be32_to_cpu(sdt->hdr.num_entries_used); |
3146 | |
3147 | if (num_entries > max_num_entries) |
3148 | num_entries = max_num_entries; |
3149 | |
3150 | /* Update dump length to the actual data to be copied */ |
3151 | dump->driver_dump.hdr.len += sizeof(struct ipr_sdt_header); |
3152 | if (ioa_cfg->sis64) |
3153 | dump->driver_dump.hdr.len += num_entries * sizeof(struct ipr_sdt_entry); |
3154 | else |
3155 | dump->driver_dump.hdr.len += max_num_entries * sizeof(struct ipr_sdt_entry); |
3156 | |
3157 | spin_unlock_irqrestore(lock: ioa_cfg->host->host_lock, flags: lock_flags); |
3158 | |
3159 | for (i = 0; i < num_entries; i++) { |
3160 | if (ioa_dump->hdr.len > max_dump_size) { |
3161 | driver_dump->hdr.status = IPR_DUMP_STATUS_QUAL_SUCCESS; |
3162 | break; |
3163 | } |
3164 | |
3165 | if (sdt->entry[i].flags & IPR_SDT_VALID_ENTRY) { |
3166 | sdt_word = be32_to_cpu(sdt->entry[i].start_token); |
3167 | if (ioa_cfg->sis64) |
3168 | bytes_to_copy = be32_to_cpu(sdt->entry[i].end_token); |
3169 | else { |
3170 | start_off = sdt_word & IPR_FMT2_MBX_ADDR_MASK; |
3171 | end_off = be32_to_cpu(sdt->entry[i].end_token); |
3172 | |
3173 | if (ipr_sdt_is_fmt2(sdt_word) && sdt_word) |
3174 | bytes_to_copy = end_off - start_off; |
3175 | else |
3176 | valid = 0; |
3177 | } |
3178 | if (valid) { |
3179 | if (bytes_to_copy > max_dump_size) { |
3180 | sdt->entry[i].flags &= ~IPR_SDT_VALID_ENTRY; |
3181 | continue; |
3182 | } |
3183 | |
3184 | /* Copy data from adapter to driver buffers */ |
3185 | bytes_copied = ipr_sdt_copy(ioa_cfg, pci_address: sdt_word, |
3186 | length: bytes_to_copy); |
3187 | |
3188 | ioa_dump->hdr.len += bytes_copied; |
3189 | |
3190 | if (bytes_copied != bytes_to_copy) { |
3191 | driver_dump->hdr.status = IPR_DUMP_STATUS_QUAL_SUCCESS; |
3192 | break; |
3193 | } |
3194 | } |
3195 | } |
3196 | } |
3197 | |
3198 | dev_err(&ioa_cfg->pdev->dev, "Dump of IOA completed.\n" ); |
3199 | |
3200 | /* Update dump_header */ |
3201 | driver_dump->hdr.len += ioa_dump->hdr.len; |
3202 | wmb(); |
3203 | ioa_cfg->sdt_state = DUMP_OBTAINED; |
3204 | LEAVE; |
3205 | } |
3206 | |
3207 | #else |
3208 | #define ipr_get_ioa_dump(ioa_cfg, dump) do { } while (0) |
3209 | #endif |
3210 | |
3211 | /** |
3212 | * ipr_release_dump - Free adapter dump memory |
3213 | * @kref: kref struct |
3214 | * |
3215 | * Return value: |
3216 | * nothing |
3217 | **/ |
3218 | static void ipr_release_dump(struct kref *kref) |
3219 | { |
3220 | struct ipr_dump *dump = container_of(kref, struct ipr_dump, kref); |
3221 | struct ipr_ioa_cfg *ioa_cfg = dump->ioa_cfg; |
3222 | unsigned long lock_flags = 0; |
3223 | int i; |
3224 | |
3225 | ENTER; |
3226 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); |
3227 | ioa_cfg->dump = NULL; |
3228 | ioa_cfg->sdt_state = INACTIVE; |
3229 | spin_unlock_irqrestore(lock: ioa_cfg->host->host_lock, flags: lock_flags); |
3230 | |
3231 | for (i = 0; i < dump->ioa_dump.next_page_index; i++) |
3232 | free_page((unsigned long) dump->ioa_dump.ioa_data[i]); |
3233 | |
3234 | vfree(addr: dump->ioa_dump.ioa_data); |
3235 | kfree(objp: dump); |
3236 | LEAVE; |
3237 | } |
3238 | |
3239 | static void ipr_add_remove_thread(struct work_struct *work) |
3240 | { |
3241 | unsigned long lock_flags; |
3242 | struct ipr_resource_entry *res; |
3243 | struct scsi_device *sdev; |
3244 | struct ipr_ioa_cfg *ioa_cfg = |
3245 | container_of(work, struct ipr_ioa_cfg, scsi_add_work_q); |
3246 | u8 bus, target, lun; |
3247 | int did_work; |
3248 | |
3249 | ENTER; |
3250 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); |
3251 | |
3252 | restart: |
3253 | do { |
3254 | did_work = 0; |
3255 | if (!ioa_cfg->hrrq[IPR_INIT_HRRQ].allow_cmds) { |
3256 | spin_unlock_irqrestore(lock: ioa_cfg->host->host_lock, flags: lock_flags); |
3257 | return; |
3258 | } |
3259 | |
3260 | list_for_each_entry(res, &ioa_cfg->used_res_q, queue) { |
3261 | if (res->del_from_ml && res->sdev) { |
3262 | did_work = 1; |
3263 | sdev = res->sdev; |
3264 | if (!scsi_device_get(sdev)) { |
3265 | if (!res->add_to_ml) |
3266 | list_move_tail(list: &res->queue, head: &ioa_cfg->free_res_q); |
3267 | else |
3268 | res->del_from_ml = 0; |
3269 | spin_unlock_irqrestore(lock: ioa_cfg->host->host_lock, flags: lock_flags); |
3270 | scsi_remove_device(sdev); |
3271 | scsi_device_put(sdev); |
3272 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); |
3273 | } |
3274 | break; |
3275 | } |
3276 | } |
3277 | } while (did_work); |
3278 | |
3279 | list_for_each_entry(res, &ioa_cfg->used_res_q, queue) { |
3280 | if (res->add_to_ml) { |
3281 | bus = res->bus; |
3282 | target = res->target; |
3283 | lun = res->lun; |
3284 | res->add_to_ml = 0; |
3285 | spin_unlock_irqrestore(lock: ioa_cfg->host->host_lock, flags: lock_flags); |
3286 | scsi_add_device(host: ioa_cfg->host, channel: bus, target, lun); |
3287 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); |
3288 | goto restart; |
3289 | } |
3290 | } |
3291 | |
3292 | ioa_cfg->scan_done = 1; |
3293 | spin_unlock_irqrestore(lock: ioa_cfg->host->host_lock, flags: lock_flags); |
3294 | kobject_uevent(kobj: &ioa_cfg->host->shost_dev.kobj, action: KOBJ_CHANGE); |
3295 | LEAVE; |
3296 | } |
3297 | |
3298 | /** |
3299 | * ipr_worker_thread - Worker thread |
3300 | * @work: ioa config struct |
3301 | * |
3302 | * Called at task level from a work thread. This function takes care |
3303 | * of adding and removing device from the mid-layer as configuration |
3304 | * changes are detected by the adapter. |
3305 | * |
3306 | * Return value: |
3307 | * nothing |
3308 | **/ |
3309 | static void ipr_worker_thread(struct work_struct *work) |
3310 | { |
3311 | unsigned long lock_flags; |
3312 | struct ipr_dump *dump; |
3313 | struct ipr_ioa_cfg *ioa_cfg = |
3314 | container_of(work, struct ipr_ioa_cfg, work_q); |
3315 | |
3316 | ENTER; |
3317 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); |
3318 | |
3319 | if (ioa_cfg->sdt_state == READ_DUMP) { |
3320 | dump = ioa_cfg->dump; |
3321 | if (!dump) { |
3322 | spin_unlock_irqrestore(lock: ioa_cfg->host->host_lock, flags: lock_flags); |
3323 | return; |
3324 | } |
3325 | kref_get(kref: &dump->kref); |
3326 | spin_unlock_irqrestore(lock: ioa_cfg->host->host_lock, flags: lock_flags); |
3327 | ipr_get_ioa_dump(ioa_cfg, dump); |
3328 | kref_put(kref: &dump->kref, release: ipr_release_dump); |
3329 | |
3330 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); |
3331 | if (ioa_cfg->sdt_state == DUMP_OBTAINED && !ioa_cfg->dump_timeout) |
3332 | ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE); |
3333 | spin_unlock_irqrestore(lock: ioa_cfg->host->host_lock, flags: lock_flags); |
3334 | return; |
3335 | } |
3336 | |
3337 | if (ioa_cfg->scsi_unblock) { |
3338 | ioa_cfg->scsi_unblock = 0; |
3339 | ioa_cfg->scsi_blocked = 0; |
3340 | spin_unlock_irqrestore(lock: ioa_cfg->host->host_lock, flags: lock_flags); |
3341 | scsi_unblock_requests(ioa_cfg->host); |
3342 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); |
3343 | if (ioa_cfg->scsi_blocked) |
3344 | scsi_block_requests(ioa_cfg->host); |
3345 | } |
3346 | |
3347 | if (!ioa_cfg->scan_enabled) { |
3348 | spin_unlock_irqrestore(lock: ioa_cfg->host->host_lock, flags: lock_flags); |
3349 | return; |
3350 | } |
3351 | |
3352 | schedule_work(work: &ioa_cfg->scsi_add_work_q); |
3353 | |
3354 | spin_unlock_irqrestore(lock: ioa_cfg->host->host_lock, flags: lock_flags); |
3355 | LEAVE; |
3356 | } |
3357 | |
3358 | #ifdef CONFIG_SCSI_IPR_TRACE |
3359 | /** |
3360 | * ipr_read_trace - Dump the adapter trace |
3361 | * @filp: open sysfs file |
3362 | * @kobj: kobject struct |
3363 | * @bin_attr: bin_attribute struct |
3364 | * @buf: buffer |
3365 | * @off: offset |
3366 | * @count: buffer size |
3367 | * |
3368 | * Return value: |
3369 | * number of bytes printed to buffer |
3370 | **/ |
3371 | static ssize_t ipr_read_trace(struct file *filp, struct kobject *kobj, |
3372 | struct bin_attribute *bin_attr, |
3373 | char *buf, loff_t off, size_t count) |
3374 | { |
3375 | struct device *dev = kobj_to_dev(kobj); |
3376 | struct Scsi_Host *shost = class_to_shost(dev); |
3377 | struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata; |
3378 | unsigned long lock_flags = 0; |
3379 | ssize_t ret; |
3380 | |
3381 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); |
3382 | ret = memory_read_from_buffer(to: buf, count, ppos: &off, from: ioa_cfg->trace, |
3383 | IPR_TRACE_SIZE); |
3384 | spin_unlock_irqrestore(lock: ioa_cfg->host->host_lock, flags: lock_flags); |
3385 | |
3386 | return ret; |
3387 | } |
3388 | |
3389 | static struct bin_attribute ipr_trace_attr = { |
3390 | .attr = { |
3391 | .name = "trace" , |
3392 | .mode = S_IRUGO, |
3393 | }, |
3394 | .size = 0, |
3395 | .read = ipr_read_trace, |
3396 | }; |
3397 | #endif |
3398 | |
3399 | /** |
3400 | * ipr_show_fw_version - Show the firmware version |
3401 | * @dev: class device struct |
3402 | * @attr: device attribute (unused) |
3403 | * @buf: buffer |
3404 | * |
3405 | * Return value: |
3406 | * number of bytes printed to buffer |
3407 | **/ |
3408 | static ssize_t ipr_show_fw_version(struct device *dev, |
3409 | struct device_attribute *attr, char *buf) |
3410 | { |
3411 | struct Scsi_Host *shost = class_to_shost(dev); |
3412 | struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata; |
3413 | struct ipr_inquiry_page3 *ucode_vpd = &ioa_cfg->vpd_cbs->page3_data; |
3414 | unsigned long lock_flags = 0; |
3415 | int len; |
3416 | |
3417 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); |
3418 | len = snprintf(buf, PAGE_SIZE, fmt: "%02X%02X%02X%02X\n" , |
3419 | ucode_vpd->major_release, ucode_vpd->card_type, |
3420 | ucode_vpd->minor_release[0], |
3421 | ucode_vpd->minor_release[1]); |
3422 | spin_unlock_irqrestore(lock: ioa_cfg->host->host_lock, flags: lock_flags); |
3423 | return len; |
3424 | } |
3425 | |
3426 | static struct device_attribute ipr_fw_version_attr = { |
3427 | .attr = { |
3428 | .name = "fw_version" , |
3429 | .mode = S_IRUGO, |
3430 | }, |
3431 | .show = ipr_show_fw_version, |
3432 | }; |
3433 | |
3434 | /** |
3435 | * ipr_show_log_level - Show the adapter's error logging level |
3436 | * @dev: class device struct |
3437 | * @attr: device attribute (unused) |
3438 | * @buf: buffer |
3439 | * |
3440 | * Return value: |
3441 | * number of bytes printed to buffer |
3442 | **/ |
3443 | static ssize_t ipr_show_log_level(struct device *dev, |
3444 | struct device_attribute *attr, char *buf) |
3445 | { |
3446 | struct Scsi_Host *shost = class_to_shost(dev); |
3447 | struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata; |
3448 | unsigned long lock_flags = 0; |
3449 | int len; |
3450 | |
3451 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); |
3452 | len = snprintf(buf, PAGE_SIZE, fmt: "%d\n" , ioa_cfg->log_level); |
3453 | spin_unlock_irqrestore(lock: ioa_cfg->host->host_lock, flags: lock_flags); |
3454 | return len; |
3455 | } |
3456 | |
3457 | /** |
3458 | * ipr_store_log_level - Change the adapter's error logging level |
3459 | * @dev: class device struct |
3460 | * @attr: device attribute (unused) |
3461 | * @buf: buffer |
3462 | * @count: buffer size |
3463 | * |
3464 | * Return value: |
3465 | * number of bytes printed to buffer |
3466 | **/ |
3467 | static ssize_t ipr_store_log_level(struct device *dev, |
3468 | struct device_attribute *attr, |
3469 | const char *buf, size_t count) |
3470 | { |
3471 | struct Scsi_Host *shost = class_to_shost(dev); |
3472 | struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata; |
3473 | unsigned long lock_flags = 0; |
3474 | |
3475 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); |
3476 | ioa_cfg->log_level = simple_strtoul(buf, NULL, 10); |
3477 | spin_unlock_irqrestore(lock: ioa_cfg->host->host_lock, flags: lock_flags); |
3478 | return strlen(buf); |
3479 | } |
3480 | |
3481 | static struct device_attribute ipr_log_level_attr = { |
3482 | .attr = { |
3483 | .name = "log_level" , |
3484 | .mode = S_IRUGO | S_IWUSR, |
3485 | }, |
3486 | .show = ipr_show_log_level, |
3487 | .store = ipr_store_log_level |
3488 | }; |
3489 | |
3490 | /** |
3491 | * ipr_store_diagnostics - IOA Diagnostics interface |
3492 | * @dev: device struct |
3493 | * @attr: device attribute (unused) |
3494 | * @buf: buffer |
3495 | * @count: buffer size |
3496 | * |
3497 | * This function will reset the adapter and wait a reasonable |
3498 | * amount of time for any errors that the adapter might log. |
3499 | * |
3500 | * Return value: |
3501 | * count on success / other on failure |
3502 | **/ |
3503 | static ssize_t ipr_store_diagnostics(struct device *dev, |
3504 | struct device_attribute *attr, |
3505 | const char *buf, size_t count) |
3506 | { |
3507 | struct Scsi_Host *shost = class_to_shost(dev); |
3508 | struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata; |
3509 | unsigned long lock_flags = 0; |
3510 | int rc = count; |
3511 | |
3512 | if (!capable(CAP_SYS_ADMIN)) |
3513 | return -EACCES; |
3514 | |
3515 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); |
3516 | while (ioa_cfg->in_reset_reload) { |
3517 | spin_unlock_irqrestore(lock: ioa_cfg->host->host_lock, flags: lock_flags); |
3518 | wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload); |
3519 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); |
3520 | } |
3521 | |
3522 | ioa_cfg->errors_logged = 0; |
3523 | ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NORMAL); |
3524 | |
3525 | if (ioa_cfg->in_reset_reload) { |
3526 | spin_unlock_irqrestore(lock: ioa_cfg->host->host_lock, flags: lock_flags); |
3527 | wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload); |
3528 | |
3529 | /* Wait for a second for any errors to be logged */ |
3530 | msleep(msecs: 1000); |
3531 | } else { |
3532 | spin_unlock_irqrestore(lock: ioa_cfg->host->host_lock, flags: lock_flags); |
3533 | return -EIO; |
3534 | } |
3535 | |
3536 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); |
3537 | if (ioa_cfg->in_reset_reload || ioa_cfg->errors_logged) |
3538 | rc = -EIO; |
3539 | spin_unlock_irqrestore(lock: ioa_cfg->host->host_lock, flags: lock_flags); |
3540 | |
3541 | return rc; |
3542 | } |
3543 | |
3544 | static struct device_attribute ipr_diagnostics_attr = { |
3545 | .attr = { |
3546 | .name = "run_diagnostics" , |
3547 | .mode = S_IWUSR, |
3548 | }, |
3549 | .store = ipr_store_diagnostics |
3550 | }; |
3551 | |
3552 | /** |
3553 | * ipr_show_adapter_state - Show the adapter's state |
3554 | * @dev: device struct |
3555 | * @attr: device attribute (unused) |
3556 | * @buf: buffer |
3557 | * |
3558 | * Return value: |
3559 | * number of bytes printed to buffer |
3560 | **/ |
3561 | static ssize_t ipr_show_adapter_state(struct device *dev, |
3562 | struct device_attribute *attr, char *buf) |
3563 | { |
3564 | struct Scsi_Host *shost = class_to_shost(dev); |
3565 | struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata; |
3566 | unsigned long lock_flags = 0; |
3567 | int len; |
3568 | |
3569 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); |
3570 | if (ioa_cfg->hrrq[IPR_INIT_HRRQ].ioa_is_dead) |
3571 | len = snprintf(buf, PAGE_SIZE, fmt: "offline\n" ); |
3572 | else |
3573 | len = snprintf(buf, PAGE_SIZE, fmt: "online\n" ); |
3574 | spin_unlock_irqrestore(lock: ioa_cfg->host->host_lock, flags: lock_flags); |
3575 | return len; |
3576 | } |
3577 | |
3578 | /** |
3579 | * ipr_store_adapter_state - Change adapter state |
3580 | * @dev: device struct |
3581 | * @attr: device attribute (unused) |
3582 | * @buf: buffer |
3583 | * @count: buffer size |
3584 | * |
3585 | * This function will change the adapter's state. |
3586 | * |
3587 | * Return value: |
3588 | * count on success / other on failure |
3589 | **/ |
3590 | static ssize_t ipr_store_adapter_state(struct device *dev, |
3591 | struct device_attribute *attr, |
3592 | const char *buf, size_t count) |
3593 | { |
3594 | struct Scsi_Host *shost = class_to_shost(dev); |
3595 | struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata; |
3596 | unsigned long lock_flags; |
3597 | int result = count, i; |
3598 | |
3599 | if (!capable(CAP_SYS_ADMIN)) |
3600 | return -EACCES; |
3601 | |
3602 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); |
3603 | if (ioa_cfg->hrrq[IPR_INIT_HRRQ].ioa_is_dead && |
3604 | !strncmp(buf, "online" , 6)) { |
3605 | for (i = 0; i < ioa_cfg->hrrq_num; i++) { |
3606 | spin_lock(lock: &ioa_cfg->hrrq[i]._lock); |
3607 | ioa_cfg->hrrq[i].ioa_is_dead = 0; |
3608 | spin_unlock(lock: &ioa_cfg->hrrq[i]._lock); |
3609 | } |
3610 | wmb(); |
3611 | ioa_cfg->reset_retries = 0; |
3612 | ioa_cfg->in_ioa_bringdown = 0; |
3613 | ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE); |
3614 | } |
3615 | spin_unlock_irqrestore(lock: ioa_cfg->host->host_lock, flags: lock_flags); |
3616 | wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload); |
3617 | |
3618 | return result; |
3619 | } |
3620 | |
3621 | static struct device_attribute ipr_ioa_state_attr = { |
3622 | .attr = { |
3623 | .name = "online_state" , |
3624 | .mode = S_IRUGO | S_IWUSR, |
3625 | }, |
3626 | .show = ipr_show_adapter_state, |
3627 | .store = ipr_store_adapter_state |
3628 | }; |
3629 | |
3630 | /** |
3631 | * ipr_store_reset_adapter - Reset the adapter |
3632 | * @dev: device struct |
3633 | * @attr: device attribute (unused) |
3634 | * @buf: buffer |
3635 | * @count: buffer size |
3636 | * |
3637 | * This function will reset the adapter. |
3638 | * |
3639 | * Return value: |
3640 | * count on success / other on failure |
3641 | **/ |
3642 | static ssize_t ipr_store_reset_adapter(struct device *dev, |
3643 | struct device_attribute *attr, |
3644 | const char *buf, size_t count) |
3645 | { |
3646 | struct Scsi_Host *shost = class_to_shost(dev); |
3647 | struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata; |
3648 | unsigned long lock_flags; |
3649 | int result = count; |
3650 | |
3651 | if (!capable(CAP_SYS_ADMIN)) |
3652 | return -EACCES; |
3653 | |
3654 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); |
3655 | if (!ioa_cfg->in_reset_reload) |
3656 | ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NORMAL); |
3657 | spin_unlock_irqrestore(lock: ioa_cfg->host->host_lock, flags: lock_flags); |
3658 | wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload); |
3659 | |
3660 | return result; |
3661 | } |
3662 | |
3663 | static struct device_attribute ipr_ioa_reset_attr = { |
3664 | .attr = { |
3665 | .name = "reset_host" , |
3666 | .mode = S_IWUSR, |
3667 | }, |
3668 | .store = ipr_store_reset_adapter |
3669 | }; |
3670 | |
3671 | static int ipr_iopoll(struct irq_poll *iop, int budget); |
3672 | /** |
3673 | * ipr_show_iopoll_weight - Show ipr polling mode |
3674 | * @dev: class device struct |
3675 | * @attr: device attribute (unused) |
3676 | * @buf: buffer |
3677 | * |
3678 | * Return value: |
3679 | * number of bytes printed to buffer |
3680 | **/ |
3681 | static ssize_t ipr_show_iopoll_weight(struct device *dev, |
3682 | struct device_attribute *attr, char *buf) |
3683 | { |
3684 | struct Scsi_Host *shost = class_to_shost(dev); |
3685 | struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata; |
3686 | unsigned long lock_flags = 0; |
3687 | int len; |
3688 | |
3689 | spin_lock_irqsave(shost->host_lock, lock_flags); |
3690 | len = snprintf(buf, PAGE_SIZE, fmt: "%d\n" , ioa_cfg->iopoll_weight); |
3691 | spin_unlock_irqrestore(lock: shost->host_lock, flags: lock_flags); |
3692 | |
3693 | return len; |
3694 | } |
3695 | |
3696 | /** |
3697 | * ipr_store_iopoll_weight - Change the adapter's polling mode |
3698 | * @dev: class device struct |
3699 | * @attr: device attribute (unused) |
3700 | * @buf: buffer |
3701 | * @count: buffer size |
3702 | * |
3703 | * Return value: |
3704 | * number of bytes printed to buffer |
3705 | **/ |
3706 | static ssize_t ipr_store_iopoll_weight(struct device *dev, |
3707 | struct device_attribute *attr, |
3708 | const char *buf, size_t count) |
3709 | { |
3710 | struct Scsi_Host *shost = class_to_shost(dev); |
3711 | struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata; |
3712 | unsigned long user_iopoll_weight; |
3713 | unsigned long lock_flags = 0; |
3714 | int i; |
3715 | |
3716 | if (!ioa_cfg->sis64) { |
3717 | dev_info(&ioa_cfg->pdev->dev, "irq_poll not supported on this adapter\n" ); |
3718 | return -EINVAL; |
3719 | } |
3720 | if (kstrtoul(s: buf, base: 10, res: &user_iopoll_weight)) |
3721 | return -EINVAL; |
3722 | |
3723 | if (user_iopoll_weight > 256) { |
3724 | dev_info(&ioa_cfg->pdev->dev, "Invalid irq_poll weight. It must be less than 256\n" ); |
3725 | return -EINVAL; |
3726 | } |
3727 | |
3728 | if (user_iopoll_weight == ioa_cfg->iopoll_weight) { |
3729 | dev_info(&ioa_cfg->pdev->dev, "Current irq_poll weight has the same weight\n" ); |
3730 | return strlen(buf); |
3731 | } |
3732 | |
3733 | if (ioa_cfg->iopoll_weight && ioa_cfg->sis64 && ioa_cfg->nvectors > 1) { |
3734 | for (i = 1; i < ioa_cfg->hrrq_num; i++) |
3735 | irq_poll_disable(&ioa_cfg->hrrq[i].iopoll); |
3736 | } |
3737 | |
3738 | spin_lock_irqsave(shost->host_lock, lock_flags); |
3739 | ioa_cfg->iopoll_weight = user_iopoll_weight; |
3740 | if (ioa_cfg->iopoll_weight && ioa_cfg->sis64 && ioa_cfg->nvectors > 1) { |
3741 | for (i = 1; i < ioa_cfg->hrrq_num; i++) { |
3742 | irq_poll_init(&ioa_cfg->hrrq[i].iopoll, |
3743 | ioa_cfg->iopoll_weight, ipr_iopoll); |
3744 | } |
3745 | } |
3746 | spin_unlock_irqrestore(lock: shost->host_lock, flags: lock_flags); |
3747 | |
3748 | return strlen(buf); |
3749 | } |
3750 | |
3751 | static struct device_attribute ipr_iopoll_weight_attr = { |
3752 | .attr = { |
3753 | .name = "iopoll_weight" , |
3754 | .mode = S_IRUGO | S_IWUSR, |
3755 | }, |
3756 | .show = ipr_show_iopoll_weight, |
3757 | .store = ipr_store_iopoll_weight |
3758 | }; |
3759 | |
3760 | /** |
3761 | * ipr_alloc_ucode_buffer - Allocates a microcode download buffer |
3762 | * @buf_len: buffer length |
3763 | * |
3764 | * Allocates a DMA'able buffer in chunks and assembles a scatter/gather |
3765 | * list to use for microcode download |
3766 | * |
3767 | * Return value: |
3768 | * pointer to sglist / NULL on failure |
3769 | **/ |
3770 | static struct ipr_sglist *ipr_alloc_ucode_buffer(int buf_len) |
3771 | { |
3772 | int sg_size, order; |
3773 | struct ipr_sglist *sglist; |
3774 | |
3775 | /* Get the minimum size per scatter/gather element */ |
3776 | sg_size = buf_len / (IPR_MAX_SGLIST - 1); |
3777 | |
3778 | /* Get the actual size per element */ |
3779 | order = get_order(size: sg_size); |
3780 | |
3781 | /* Allocate a scatter/gather list for the DMA */ |
3782 | sglist = kzalloc(size: sizeof(struct ipr_sglist), GFP_KERNEL); |
3783 | if (sglist == NULL) { |
3784 | ipr_trace; |
3785 | return NULL; |
3786 | } |
3787 | sglist->order = order; |
3788 | sglist->scatterlist = sgl_alloc_order(length: buf_len, order, chainable: false, GFP_KERNEL, |
3789 | nent_p: &sglist->num_sg); |
3790 | if (!sglist->scatterlist) { |
3791 | kfree(objp: sglist); |
3792 | return NULL; |
3793 | } |
3794 | |
3795 | return sglist; |
3796 | } |
3797 | |
3798 | /** |
3799 | * ipr_free_ucode_buffer - Frees a microcode download buffer |
3800 | * @sglist: scatter/gather list pointer |
3801 | * |
3802 | * Free a DMA'able ucode download buffer previously allocated with |
3803 | * ipr_alloc_ucode_buffer |
3804 | * |
3805 | * Return value: |
3806 | * nothing |
3807 | **/ |
3808 | static void ipr_free_ucode_buffer(struct ipr_sglist *sglist) |
3809 | { |
3810 | sgl_free_order(sgl: sglist->scatterlist, order: sglist->order); |
3811 | kfree(objp: sglist); |
3812 | } |
3813 | |
3814 | /** |
3815 | * ipr_copy_ucode_buffer - Copy user buffer to kernel buffer |
3816 | * @sglist: scatter/gather list pointer |
3817 | * @buffer: buffer pointer |
3818 | * @len: buffer length |
3819 | * |
3820 | * Copy a microcode image from a user buffer into a buffer allocated by |
3821 | * ipr_alloc_ucode_buffer |
3822 | * |
3823 | * Return value: |
3824 | * 0 on success / other on failure |
3825 | **/ |
3826 | static int ipr_copy_ucode_buffer(struct ipr_sglist *sglist, |
3827 | u8 *buffer, u32 len) |
3828 | { |
3829 | int bsize_elem, i, result = 0; |
3830 | struct scatterlist *sg; |
3831 | |
3832 | /* Determine the actual number of bytes per element */ |
3833 | bsize_elem = PAGE_SIZE * (1 << sglist->order); |
3834 | |
3835 | sg = sglist->scatterlist; |
3836 | |
3837 | for (i = 0; i < (len / bsize_elem); i++, sg = sg_next(sg), |
3838 | buffer += bsize_elem) { |
3839 | struct page *page = sg_page(sg); |
3840 | |
3841 | memcpy_to_page(page, offset: 0, from: buffer, len: bsize_elem); |
3842 | |
3843 | sg->length = bsize_elem; |
3844 | |
3845 | if (result != 0) { |
3846 | ipr_trace; |
3847 | return result; |
3848 | } |
3849 | } |
3850 | |
3851 | if (len % bsize_elem) { |
3852 | struct page *page = sg_page(sg); |
3853 | |
3854 | memcpy_to_page(page, offset: 0, from: buffer, len: len % bsize_elem); |
3855 | |
3856 | sg->length = len % bsize_elem; |
3857 | } |
3858 | |
3859 | sglist->buffer_len = len; |
3860 | return result; |
3861 | } |
3862 | |
3863 | /** |
3864 | * ipr_build_ucode_ioadl64 - Build a microcode download IOADL |
3865 | * @ipr_cmd: ipr command struct |
3866 | * @sglist: scatter/gather list |
3867 | * |
3868 | * Builds a microcode download IOA data list (IOADL). |
3869 | * |
3870 | **/ |
3871 | static void ipr_build_ucode_ioadl64(struct ipr_cmnd *ipr_cmd, |
3872 | struct ipr_sglist *sglist) |
3873 | { |
3874 | struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb; |
3875 | struct ipr_ioadl64_desc *ioadl64 = ipr_cmd->i.ioadl64; |
3876 | struct scatterlist *scatterlist = sglist->scatterlist; |
3877 | struct scatterlist *sg; |
3878 | int i; |
3879 | |
3880 | ipr_cmd->dma_use_sg = sglist->num_dma_sg; |
3881 | ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ; |
3882 | ioarcb->data_transfer_length = cpu_to_be32(sglist->buffer_len); |
3883 | |
3884 | ioarcb->ioadl_len = |
3885 | cpu_to_be32(sizeof(struct ipr_ioadl64_desc) * ipr_cmd->dma_use_sg); |
3886 | for_each_sg(scatterlist, sg, ipr_cmd->dma_use_sg, i) { |
3887 | ioadl64[i].flags = cpu_to_be32(IPR_IOADL_FLAGS_WRITE); |
3888 | ioadl64[i].data_len = cpu_to_be32(sg_dma_len(sg)); |
3889 | ioadl64[i].address = cpu_to_be64(sg_dma_address(sg)); |
3890 | } |
3891 | |
3892 | ioadl64[i-1].flags |= cpu_to_be32(IPR_IOADL_FLAGS_LAST); |
3893 | } |
3894 | |
3895 | /** |
3896 | * ipr_build_ucode_ioadl - Build a microcode download IOADL |
3897 | * @ipr_cmd: ipr command struct |
3898 | * @sglist: scatter/gather list |
3899 | * |
3900 | * Builds a microcode download IOA data list (IOADL). |
3901 | * |
3902 | **/ |
3903 | static void ipr_build_ucode_ioadl(struct ipr_cmnd *ipr_cmd, |
3904 | struct ipr_sglist *sglist) |
3905 | { |
3906 | struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb; |
3907 | struct ipr_ioadl_desc *ioadl = ipr_cmd->i.ioadl; |
3908 | struct scatterlist *scatterlist = sglist->scatterlist; |
3909 | struct scatterlist *sg; |
3910 | int i; |
3911 | |
3912 | ipr_cmd->dma_use_sg = sglist->num_dma_sg; |
3913 | ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ; |
3914 | ioarcb->data_transfer_length = cpu_to_be32(sglist->buffer_len); |
3915 | |
3916 | ioarcb->ioadl_len = |
3917 | cpu_to_be32(sizeof(struct ipr_ioadl_desc) * ipr_cmd->dma_use_sg); |
3918 | |
3919 | for_each_sg(scatterlist, sg, ipr_cmd->dma_use_sg, i) { |
3920 | ioadl[i].flags_and_data_len = |
3921 | cpu_to_be32(IPR_IOADL_FLAGS_WRITE | sg_dma_len(sg)); |
3922 | ioadl[i].address = |
3923 | cpu_to_be32(sg_dma_address(sg)); |
3924 | } |
3925 | |
3926 | ioadl[i-1].flags_and_data_len |= |
3927 | cpu_to_be32(IPR_IOADL_FLAGS_LAST); |
3928 | } |
3929 | |
3930 | /** |
3931 | * ipr_update_ioa_ucode - Update IOA's microcode |
3932 | * @ioa_cfg: ioa config struct |
3933 | * @sglist: scatter/gather list |
3934 | * |
3935 | * Initiate an adapter reset to update the IOA's microcode |
3936 | * |
3937 | * Return value: |
3938 | * 0 on success / -EIO on failure |
3939 | **/ |
3940 | static int ipr_update_ioa_ucode(struct ipr_ioa_cfg *ioa_cfg, |
3941 | struct ipr_sglist *sglist) |
3942 | { |
3943 | unsigned long lock_flags; |
3944 | |
3945 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); |
3946 | while (ioa_cfg->in_reset_reload) { |
3947 | spin_unlock_irqrestore(lock: ioa_cfg->host->host_lock, flags: lock_flags); |
3948 | wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload); |
3949 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); |
3950 | } |
3951 | |
3952 | if (ioa_cfg->ucode_sglist) { |
3953 | spin_unlock_irqrestore(lock: ioa_cfg->host->host_lock, flags: lock_flags); |
3954 | dev_err(&ioa_cfg->pdev->dev, |
3955 | "Microcode download already in progress\n" ); |
3956 | return -EIO; |
3957 | } |
3958 | |
3959 | sglist->num_dma_sg = dma_map_sg(&ioa_cfg->pdev->dev, |
3960 | sglist->scatterlist, sglist->num_sg, |
3961 | DMA_TO_DEVICE); |
3962 | |
3963 | if (!sglist->num_dma_sg) { |
3964 | spin_unlock_irqrestore(lock: ioa_cfg->host->host_lock, flags: lock_flags); |
3965 | dev_err(&ioa_cfg->pdev->dev, |
3966 | "Failed to map microcode download buffer!\n" ); |
3967 | return -EIO; |
3968 | } |
3969 | |
3970 | ioa_cfg->ucode_sglist = sglist; |
3971 | ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NORMAL); |
3972 | spin_unlock_irqrestore(lock: ioa_cfg->host->host_lock, flags: lock_flags); |
3973 | wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload); |
3974 | |
3975 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); |
3976 | ioa_cfg->ucode_sglist = NULL; |
3977 | spin_unlock_irqrestore(lock: ioa_cfg->host->host_lock, flags: lock_flags); |
3978 | return 0; |
3979 | } |
3980 | |
3981 | /** |
3982 | * ipr_store_update_fw - Update the firmware on the adapter |
3983 | * @dev: device struct |
3984 | * @attr: device attribute (unused) |
3985 | * @buf: buffer |
3986 | * @count: buffer size |
3987 | * |
3988 | * This function will update the firmware on the adapter. |
3989 | * |
3990 | * Return value: |
3991 | * count on success / other on failure |
3992 | **/ |
3993 | static ssize_t ipr_store_update_fw(struct device *dev, |
3994 | struct device_attribute *attr, |
3995 | const char *buf, size_t count) |
3996 | { |
3997 | struct Scsi_Host *shost = class_to_shost(dev); |
3998 | struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata; |
3999 | struct ipr_ucode_image_header *image_hdr; |
4000 | const struct firmware *fw_entry; |
4001 | struct ipr_sglist *sglist; |
4002 | char fname[100]; |
4003 | char *src; |
4004 | char *endline; |
4005 | int result, dnld_size; |
4006 | |
4007 | if (!capable(CAP_SYS_ADMIN)) |
4008 | return -EACCES; |
4009 | |
4010 | snprintf(buf: fname, size: sizeof(fname), fmt: "%s" , buf); |
4011 | |
4012 | endline = strchr(fname, '\n'); |
4013 | if (endline) |
4014 | *endline = '\0'; |
4015 | |
4016 | if (request_firmware(fw: &fw_entry, name: fname, device: &ioa_cfg->pdev->dev)) { |
4017 | dev_err(&ioa_cfg->pdev->dev, "Firmware file %s not found\n" , fname); |
4018 | return -EIO; |
4019 | } |
4020 | |
4021 | image_hdr = (struct ipr_ucode_image_header *)fw_entry->data; |
4022 | |
4023 | src = (u8 *)image_hdr + be32_to_cpu(image_hdr->header_length); |
4024 | dnld_size = fw_entry->size - be32_to_cpu(image_hdr->header_length); |
4025 | sglist = ipr_alloc_ucode_buffer(buf_len: dnld_size); |
4026 | |
4027 | if (!sglist) { |
4028 | dev_err(&ioa_cfg->pdev->dev, "Microcode buffer allocation failed\n" ); |
4029 | release_firmware(fw: fw_entry); |
4030 | return -ENOMEM; |
4031 | } |
4032 | |
4033 | result = ipr_copy_ucode_buffer(sglist, buffer: src, len: dnld_size); |
4034 | |
4035 | if (result) { |
4036 | dev_err(&ioa_cfg->pdev->dev, |
4037 | "Microcode buffer copy to DMA buffer failed\n" ); |
4038 | goto out; |
4039 | } |
4040 | |
4041 | ipr_info("Updating microcode, please be patient. This may take up to 30 minutes.\n" ); |
4042 | |
4043 | result = ipr_update_ioa_ucode(ioa_cfg, sglist); |
4044 | |
4045 | if (!result) |
4046 | result = count; |
4047 | out: |
4048 | ipr_free_ucode_buffer(sglist); |
4049 | release_firmware(fw: fw_entry); |
4050 | return result; |
4051 | } |
4052 | |
4053 | static struct device_attribute ipr_update_fw_attr = { |
4054 | .attr = { |
4055 | .name = "update_fw" , |
4056 | .mode = S_IWUSR, |
4057 | }, |
4058 | .store = ipr_store_update_fw |
4059 | }; |
4060 | |
4061 | /** |
4062 | * ipr_show_fw_type - Show the adapter's firmware type. |
4063 | * @dev: class device struct |
4064 | * @attr: device attribute (unused) |
4065 | * @buf: buffer |
4066 | * |
4067 | * Return value: |
4068 | * number of bytes printed to buffer |
4069 | **/ |
4070 | static ssize_t ipr_show_fw_type(struct device *dev, |
4071 | struct device_attribute *attr, char *buf) |
4072 | { |
4073 | struct Scsi_Host *shost = class_to_shost(dev); |
4074 | struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata; |
4075 | unsigned long lock_flags = 0; |
4076 | int len; |
4077 | |
4078 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); |
4079 | len = snprintf(buf, PAGE_SIZE, fmt: "%d\n" , ioa_cfg->sis64); |
4080 | spin_unlock_irqrestore(lock: ioa_cfg->host->host_lock, flags: lock_flags); |
4081 | return len; |
4082 | } |
4083 | |
4084 | static struct device_attribute ipr_ioa_fw_type_attr = { |
4085 | .attr = { |
4086 | .name = "fw_type" , |
4087 | .mode = S_IRUGO, |
4088 | }, |
4089 | .show = ipr_show_fw_type |
4090 | }; |
4091 | |
4092 | static ssize_t ipr_read_async_err_log(struct file *filep, struct kobject *kobj, |
4093 | struct bin_attribute *bin_attr, char *buf, |
4094 | loff_t off, size_t count) |
4095 | { |
4096 | struct device *cdev = kobj_to_dev(kobj); |
4097 | struct Scsi_Host *shost = class_to_shost(cdev); |
4098 | struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata; |
4099 | struct ipr_hostrcb *hostrcb; |
4100 | unsigned long lock_flags = 0; |
4101 | int ret; |
4102 | |
4103 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); |
4104 | hostrcb = list_first_entry_or_null(&ioa_cfg->hostrcb_report_q, |
4105 | struct ipr_hostrcb, queue); |
4106 | if (!hostrcb) { |
4107 | spin_unlock_irqrestore(lock: ioa_cfg->host->host_lock, flags: lock_flags); |
4108 | return 0; |
4109 | } |
4110 | ret = memory_read_from_buffer(to: buf, count, ppos: &off, from: &hostrcb->hcam, |
4111 | available: sizeof(hostrcb->hcam)); |
4112 | spin_unlock_irqrestore(lock: ioa_cfg->host->host_lock, flags: lock_flags); |
4113 | return ret; |
4114 | } |
4115 | |
4116 | static ssize_t ipr_next_async_err_log(struct file *filep, struct kobject *kobj, |
4117 | struct bin_attribute *bin_attr, char *buf, |
4118 | loff_t off, size_t count) |
4119 | { |
4120 | struct device *cdev = kobj_to_dev(kobj); |
4121 | struct Scsi_Host *shost = class_to_shost(cdev); |
4122 | struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata; |
4123 | struct ipr_hostrcb *hostrcb; |
4124 | unsigned long lock_flags = 0; |
4125 | |
4126 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); |
4127 | hostrcb = list_first_entry_or_null(&ioa_cfg->hostrcb_report_q, |
4128 | struct ipr_hostrcb, queue); |
4129 | if (!hostrcb) { |
4130 | spin_unlock_irqrestore(lock: ioa_cfg->host->host_lock, flags: lock_flags); |
4131 | return count; |
4132 | } |
4133 | |
4134 | /* Reclaim hostrcb before exit */ |
4135 | list_move_tail(list: &hostrcb->queue, head: &ioa_cfg->hostrcb_free_q); |
4136 | spin_unlock_irqrestore(lock: ioa_cfg->host->host_lock, flags: lock_flags); |
4137 | return count; |
4138 | } |
4139 | |
4140 | static struct bin_attribute ipr_ioa_async_err_log = { |
4141 | .attr = { |
4142 | .name = "async_err_log" , |
4143 | .mode = S_IRUGO | S_IWUSR, |
4144 | }, |
4145 | .size = 0, |
4146 | .read = ipr_read_async_err_log, |
4147 | .write = ipr_next_async_err_log |
4148 | }; |
4149 | |
4150 | static struct attribute *ipr_ioa_attrs[] = { |
4151 | &ipr_fw_version_attr.attr, |
4152 | &ipr_log_level_attr.attr, |
4153 | &ipr_diagnostics_attr.attr, |
4154 | &ipr_ioa_state_attr.attr, |
4155 | &ipr_ioa_reset_attr.attr, |
4156 | &ipr_update_fw_attr.attr, |
4157 | &ipr_ioa_fw_type_attr.attr, |
4158 | &ipr_iopoll_weight_attr.attr, |
4159 | NULL, |
4160 | }; |
4161 | |
4162 | ATTRIBUTE_GROUPS(ipr_ioa); |
4163 | |
4164 | #ifdef CONFIG_SCSI_IPR_DUMP |
4165 | /** |
4166 | * ipr_read_dump - Dump the adapter |
4167 | * @filp: open sysfs file |
4168 | * @kobj: kobject struct |
4169 | * @bin_attr: bin_attribute struct |
4170 | * @buf: buffer |
4171 | * @off: offset |
4172 | * @count: buffer size |
4173 | * |
4174 | * Return value: |
4175 | * number of bytes printed to buffer |
4176 | **/ |
4177 | static ssize_t ipr_read_dump(struct file *filp, struct kobject *kobj, |
4178 | struct bin_attribute *bin_attr, |
4179 | char *buf, loff_t off, size_t count) |
4180 | { |
4181 | struct device *cdev = kobj_to_dev(kobj); |
4182 | struct Scsi_Host *shost = class_to_shost(cdev); |
4183 | struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata; |
4184 | struct ipr_dump *dump; |
4185 | unsigned long lock_flags = 0; |
4186 | char *src; |
4187 | int len, sdt_end; |
4188 | size_t rc = count; |
4189 | |
4190 | if (!capable(CAP_SYS_ADMIN)) |
4191 | return -EACCES; |
4192 | |
4193 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); |
4194 | dump = ioa_cfg->dump; |
4195 | |
4196 | if (ioa_cfg->sdt_state != DUMP_OBTAINED || !dump) { |
4197 | spin_unlock_irqrestore(lock: ioa_cfg->host->host_lock, flags: lock_flags); |
4198 | return 0; |
4199 | } |
4200 | kref_get(kref: &dump->kref); |
4201 | spin_unlock_irqrestore(lock: ioa_cfg->host->host_lock, flags: lock_flags); |
4202 | |
4203 | if (off > dump->driver_dump.hdr.len) { |
4204 | kref_put(kref: &dump->kref, release: ipr_release_dump); |
4205 | return 0; |
4206 | } |
4207 | |
4208 | if (off + count > dump->driver_dump.hdr.len) { |
4209 | count = dump->driver_dump.hdr.len - off; |
4210 | rc = count; |
4211 | } |
4212 | |
4213 | if (count && off < sizeof(dump->driver_dump)) { |
4214 | if (off + count > sizeof(dump->driver_dump)) |
4215 | len = sizeof(dump->driver_dump) - off; |
4216 | else |
4217 | len = count; |
4218 | src = (u8 *)&dump->driver_dump + off; |
4219 | memcpy(buf, src, len); |
4220 | buf += len; |
4221 | off += len; |
4222 | count -= len; |
4223 | } |
4224 | |
4225 | off -= sizeof(dump->driver_dump); |
4226 | |
4227 | if (ioa_cfg->sis64) |
4228 | sdt_end = offsetof(struct ipr_ioa_dump, sdt.entry) + |
4229 | (be32_to_cpu(dump->ioa_dump.sdt.hdr.num_entries_used) * |
4230 | sizeof(struct ipr_sdt_entry)); |
4231 | else |
4232 | sdt_end = offsetof(struct ipr_ioa_dump, sdt.entry) + |
4233 | (IPR_FMT2_NUM_SDT_ENTRIES * sizeof(struct ipr_sdt_entry)); |
4234 | |
4235 | if (count && off < sdt_end) { |
4236 | if (off + count > sdt_end) |
4237 | len = sdt_end - off; |
4238 | else |
4239 | len = count; |
4240 | src = (u8 *)&dump->ioa_dump + off; |
4241 | memcpy(buf, src, len); |
4242 | buf += len; |
4243 | off += len; |
4244 | count -= len; |
4245 | } |
4246 | |
4247 | off -= sdt_end; |
4248 | |
4249 | while (count) { |
4250 | if ((off & PAGE_MASK) != ((off + count) & PAGE_MASK)) |
4251 | len = PAGE_ALIGN(off) - off; |
4252 | else |
4253 | len = count; |
4254 | src = (u8 *)dump->ioa_dump.ioa_data[(off & PAGE_MASK) >> PAGE_SHIFT]; |
4255 | src += off & ~PAGE_MASK; |
4256 | memcpy(buf, src, len); |
4257 | buf += len; |
4258 | off += len; |
4259 | count -= len; |
4260 | } |
4261 | |
4262 | kref_put(kref: &dump->kref, release: ipr_release_dump); |
4263 | return rc; |
4264 | } |
4265 | |
4266 | /** |
4267 | * ipr_alloc_dump - Prepare for adapter dump |
4268 | * @ioa_cfg: ioa config struct |
4269 | * |
4270 | * Return value: |
4271 | * 0 on success / other on failure |
4272 | **/ |
4273 | static int ipr_alloc_dump(struct ipr_ioa_cfg *ioa_cfg) |
4274 | { |
4275 | struct ipr_dump *dump; |
4276 | __be32 **ioa_data; |
4277 | unsigned long lock_flags = 0; |
4278 | |
4279 | dump = kzalloc(size: sizeof(struct ipr_dump), GFP_KERNEL); |
4280 | |
4281 | if (!dump) { |
4282 | ipr_err("Dump memory allocation failed\n" ); |
4283 | return -ENOMEM; |
4284 | } |
4285 | |
4286 | if (ioa_cfg->sis64) |
4287 | ioa_data = vmalloc(array_size(IPR_FMT3_MAX_NUM_DUMP_PAGES, |
4288 | sizeof(__be32 *))); |
4289 | else |
4290 | ioa_data = vmalloc(array_size(IPR_FMT2_MAX_NUM_DUMP_PAGES, |
4291 | sizeof(__be32 *))); |
4292 | |
4293 | if (!ioa_data) { |
4294 | ipr_err("Dump memory allocation failed\n" ); |
4295 | kfree(objp: dump); |
4296 | return -ENOMEM; |
4297 | } |
4298 | |
4299 | dump->ioa_dump.ioa_data = ioa_data; |
4300 | |
4301 | kref_init(kref: &dump->kref); |
4302 | dump->ioa_cfg = ioa_cfg; |
4303 | |
4304 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); |
4305 | |
4306 | if (INACTIVE != ioa_cfg->sdt_state) { |
4307 | spin_unlock_irqrestore(lock: ioa_cfg->host->host_lock, flags: lock_flags); |
4308 | vfree(addr: dump->ioa_dump.ioa_data); |
4309 | kfree(objp: dump); |
4310 | return 0; |
4311 | } |
4312 | |
4313 | ioa_cfg->dump = dump; |
4314 | ioa_cfg->sdt_state = WAIT_FOR_DUMP; |
4315 | if (ioa_cfg->hrrq[IPR_INIT_HRRQ].ioa_is_dead && !ioa_cfg->dump_taken) { |
4316 | ioa_cfg->dump_taken = 1; |
4317 | schedule_work(work: &ioa_cfg->work_q); |
4318 | } |
4319 | spin_unlock_irqrestore(lock: ioa_cfg->host->host_lock, flags: lock_flags); |
4320 | |
4321 | return 0; |
4322 | } |
4323 | |
4324 | /** |
4325 | * ipr_free_dump - Free adapter dump memory |
4326 | * @ioa_cfg: ioa config struct |
4327 | * |
4328 | * Return value: |
4329 | * 0 on success / other on failure |
4330 | **/ |
4331 | static int ipr_free_dump(struct ipr_ioa_cfg *ioa_cfg) |
4332 | { |
4333 | struct ipr_dump *dump; |
4334 | unsigned long lock_flags = 0; |
4335 | |
4336 | ENTER; |
4337 | |
4338 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); |
4339 | dump = ioa_cfg->dump; |
4340 | if (!dump) { |
4341 | spin_unlock_irqrestore(lock: ioa_cfg->host->host_lock, flags: lock_flags); |
4342 | return 0; |
4343 | } |
4344 | |
4345 | ioa_cfg->dump = NULL; |
4346 | spin_unlock_irqrestore(lock: ioa_cfg->host->host_lock, flags: lock_flags); |
4347 | |
4348 | kref_put(kref: &dump->kref, release: ipr_release_dump); |
4349 | |
4350 | LEAVE; |
4351 | return 0; |
4352 | } |
4353 | |
4354 | /** |
4355 | * ipr_write_dump - Setup dump state of adapter |
4356 | * @filp: open sysfs file |
4357 | * @kobj: kobject struct |
4358 | * @bin_attr: bin_attribute struct |
4359 | * @buf: buffer |
4360 | * @off: offset |
4361 | * @count: buffer size |
4362 | * |
4363 | * Return value: |
4364 | * number of bytes printed to buffer |
4365 | **/ |
4366 | static ssize_t ipr_write_dump(struct file *filp, struct kobject *kobj, |
4367 | struct bin_attribute *bin_attr, |
4368 | char *buf, loff_t off, size_t count) |
4369 | { |
4370 | struct device *cdev = kobj_to_dev(kobj); |
4371 | struct Scsi_Host *shost = class_to_shost(cdev); |
4372 | struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata; |
4373 | int rc; |
4374 | |
4375 | if (!capable(CAP_SYS_ADMIN)) |
4376 | return -EACCES; |
4377 | |
4378 | if (buf[0] == '1') |
4379 | rc = ipr_alloc_dump(ioa_cfg); |
4380 | else if (buf[0] == '0') |
4381 | rc = ipr_free_dump(ioa_cfg); |
4382 | else |
4383 | return -EINVAL; |
4384 | |
4385 | if (rc) |
4386 | return rc; |
4387 | else |
4388 | return count; |
4389 | } |
4390 | |
4391 | static struct bin_attribute ipr_dump_attr = { |
4392 | .attr = { |
4393 | .name = "dump" , |
4394 | .mode = S_IRUSR | S_IWUSR, |
4395 | }, |
4396 | .size = 0, |
4397 | .read = ipr_read_dump, |
4398 | .write = ipr_write_dump |
4399 | }; |
4400 | #else |
4401 | static int ipr_free_dump(struct ipr_ioa_cfg *ioa_cfg) { return 0; }; |
4402 | #endif |
4403 | |
4404 | /** |
4405 | * ipr_change_queue_depth - Change the device's queue depth |
4406 | * @sdev: scsi device struct |
4407 | * @qdepth: depth to set |
4408 | * |
4409 | * Return value: |
4410 | * actual depth set |
4411 | **/ |
4412 | static int ipr_change_queue_depth(struct scsi_device *sdev, int qdepth) |
4413 | { |
4414 | scsi_change_queue_depth(sdev, qdepth); |
4415 | return sdev->queue_depth; |
4416 | } |
4417 | |
4418 | /** |
4419 | * ipr_show_adapter_handle - Show the adapter's resource handle for this device |
4420 | * @dev: device struct |
4421 | * @attr: device attribute structure |
4422 | * @buf: buffer |
4423 | * |
4424 | * Return value: |
4425 | * number of bytes printed to buffer |
4426 | **/ |
4427 | static ssize_t ipr_show_adapter_handle(struct device *dev, struct device_attribute *attr, char *buf) |
4428 | { |
4429 | struct scsi_device *sdev = to_scsi_device(dev); |
4430 | struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)sdev->host->hostdata; |
4431 | struct ipr_resource_entry *res; |
4432 | unsigned long lock_flags = 0; |
4433 | ssize_t len = -ENXIO; |
4434 | |
4435 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); |
4436 | res = (struct ipr_resource_entry *)sdev->hostdata; |
4437 | if (res) |
4438 | len = snprintf(buf, PAGE_SIZE, fmt: "%08X\n" , res->res_handle); |
4439 | spin_unlock_irqrestore(lock: ioa_cfg->host->host_lock, flags: lock_flags); |
4440 | return len; |
4441 | } |
4442 | |
4443 | static struct device_attribute ipr_adapter_handle_attr = { |
4444 | .attr = { |
4445 | .name = "adapter_handle" , |
4446 | .mode = S_IRUSR, |
4447 | }, |
4448 | .show = ipr_show_adapter_handle |
4449 | }; |
4450 | |
4451 | /** |
4452 | * ipr_show_resource_path - Show the resource path or the resource address for |
4453 | * this device. |
4454 | * @dev: device struct |
4455 | * @attr: device attribute structure |
4456 | * @buf: buffer |
4457 | * |
4458 | * Return value: |
4459 | * number of bytes printed to buffer |
4460 | **/ |
4461 | static ssize_t ipr_show_resource_path(struct device *dev, struct device_attribute *attr, char *buf) |
4462 | { |
4463 | struct scsi_device *sdev = to_scsi_device(dev); |
4464 | struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)sdev->host->hostdata; |
4465 | struct ipr_resource_entry *res; |
4466 | unsigned long lock_flags = 0; |
4467 | ssize_t len = -ENXIO; |
4468 | char buffer[IPR_MAX_RES_PATH_LENGTH]; |
4469 | |
4470 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); |
4471 | res = (struct ipr_resource_entry *)sdev->hostdata; |
4472 | if (res && ioa_cfg->sis64) |
4473 | len = snprintf(buf, PAGE_SIZE, fmt: "%s\n" , |
4474 | __ipr_format_res_path(res_path: res->res_path, buffer, |
4475 | len: sizeof(buffer))); |
4476 | else if (res) |
4477 | len = snprintf(buf, PAGE_SIZE, fmt: "%d:%d:%d:%d\n" , ioa_cfg->host->host_no, |
4478 | res->bus, res->target, res->lun); |
4479 | |
4480 | spin_unlock_irqrestore(lock: ioa_cfg->host->host_lock, flags: lock_flags); |
4481 | return len; |
4482 | } |
4483 | |
4484 | static struct device_attribute ipr_resource_path_attr = { |
4485 | .attr = { |
4486 | .name = "resource_path" , |
4487 | .mode = S_IRUGO, |
4488 | }, |
4489 | .show = ipr_show_resource_path |
4490 | }; |
4491 | |
4492 | /** |
4493 | * ipr_show_device_id - Show the device_id for this device. |
4494 | * @dev: device struct |
4495 | * @attr: device attribute structure |
4496 | * @buf: buffer |
4497 | * |
4498 | * Return value: |
4499 | * number of bytes printed to buffer |
4500 | **/ |
4501 | static ssize_t ipr_show_device_id(struct device *dev, struct device_attribute *attr, char *buf) |
4502 | { |
4503 | struct scsi_device *sdev = to_scsi_device(dev); |
4504 | struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)sdev->host->hostdata; |
4505 | struct ipr_resource_entry *res; |
4506 | unsigned long lock_flags = 0; |
4507 | ssize_t len = -ENXIO; |
4508 | |
4509 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); |
4510 | res = (struct ipr_resource_entry *)sdev->hostdata; |
4511 | if (res && ioa_cfg->sis64) |
4512 | len = snprintf(buf, PAGE_SIZE, fmt: "0x%llx\n" , be64_to_cpu(res->dev_id)); |
4513 | else if (res) |
4514 | len = snprintf(buf, PAGE_SIZE, fmt: "0x%llx\n" , res->lun_wwn); |
4515 | |
4516 | spin_unlock_irqrestore(lock: ioa_cfg->host->host_lock, flags: lock_flags); |
4517 | return len; |
4518 | } |
4519 | |
4520 | static struct device_attribute ipr_device_id_attr = { |
4521 | .attr = { |
4522 | .name = "device_id" , |
4523 | .mode = S_IRUGO, |
4524 | }, |
4525 | .show = ipr_show_device_id |
4526 | }; |
4527 | |
4528 | /** |
4529 | * ipr_show_resource_type - Show the resource type for this device. |
4530 | * @dev: device struct |
4531 | * @attr: device attribute structure |
4532 | * @buf: buffer |
4533 | * |
4534 | * Return value: |
4535 | * number of bytes printed to buffer |
4536 | **/ |
4537 | static ssize_t ipr_show_resource_type(struct device *dev, struct device_attribute *attr, char *buf) |
4538 | { |
4539 | struct scsi_device *sdev = to_scsi_device(dev); |
4540 | struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)sdev->host->hostdata; |
4541 | struct ipr_resource_entry *res; |
4542 | unsigned long lock_flags = 0; |
4543 | ssize_t len = -ENXIO; |
4544 | |
4545 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); |
4546 | res = (struct ipr_resource_entry *)sdev->hostdata; |
4547 | |
4548 | if (res) |
4549 | len = snprintf(buf, PAGE_SIZE, fmt: "%x\n" , res->type); |
4550 | |
4551 | spin_unlock_irqrestore(lock: ioa_cfg->host->host_lock, flags: lock_flags); |
4552 | return len; |
4553 | } |
4554 | |
4555 | static struct device_attribute ipr_resource_type_attr = { |
4556 | .attr = { |
4557 | .name = "resource_type" , |
4558 | .mode = S_IRUGO, |
4559 | }, |
4560 | .show = ipr_show_resource_type |
4561 | }; |
4562 | |
4563 | /** |
4564 | * ipr_show_raw_mode - Show the adapter's raw mode |
4565 | * @dev: class device struct |
4566 | * @attr: device attribute (unused) |
4567 | * @buf: buffer |
4568 | * |
4569 | * Return value: |
4570 | * number of bytes printed to buffer |
4571 | **/ |
4572 | static ssize_t ipr_show_raw_mode(struct device *dev, |
4573 | struct device_attribute *attr, char *buf) |
4574 | { |
4575 | struct scsi_device *sdev = to_scsi_device(dev); |
4576 | struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)sdev->host->hostdata; |
4577 | struct ipr_resource_entry *res; |
4578 | unsigned long lock_flags = 0; |
4579 | ssize_t len; |
4580 | |
4581 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); |
4582 | res = (struct ipr_resource_entry *)sdev->hostdata; |
4583 | if (res) |
4584 | len = snprintf(buf, PAGE_SIZE, fmt: "%d\n" , res->raw_mode); |
4585 | else |
4586 | len = -ENXIO; |
4587 | spin_unlock_irqrestore(lock: ioa_cfg->host->host_lock, flags: lock_flags); |
4588 | return len; |
4589 | } |
4590 | |
4591 | /** |
4592 | * ipr_store_raw_mode - Change the adapter's raw mode |
4593 | * @dev: class device struct |
4594 | * @attr: device attribute (unused) |
4595 | * @buf: buffer |
4596 | * @count: buffer size |
4597 | * |
4598 | * Return value: |
4599 | * number of bytes printed to buffer |
4600 | **/ |
4601 | static ssize_t ipr_store_raw_mode(struct device *dev, |
4602 | struct device_attribute *attr, |
4603 | const char *buf, size_t count) |
4604 | { |
4605 | struct scsi_device *sdev = to_scsi_device(dev); |
4606 | struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)sdev->host->hostdata; |
4607 | struct ipr_resource_entry *res; |
4608 | unsigned long lock_flags = 0; |
4609 | ssize_t len; |
4610 | |
4611 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); |
4612 | res = (struct ipr_resource_entry *)sdev->hostdata; |
4613 | if (res) { |
4614 | if (ipr_is_af_dasd_device(res)) { |
4615 | res->raw_mode = simple_strtoul(buf, NULL, 10); |
4616 | len = strlen(buf); |
4617 | if (res->sdev) |
4618 | sdev_printk(KERN_INFO, res->sdev, "raw mode is %s\n" , |
4619 | res->raw_mode ? "enabled" : "disabled" ); |
4620 | } else |
4621 | len = -EINVAL; |
4622 | } else |
4623 | len = -ENXIO; |
4624 | spin_unlock_irqrestore(lock: ioa_cfg->host->host_lock, flags: lock_flags); |
4625 | return len; |
4626 | } |
4627 | |
4628 | static struct device_attribute ipr_raw_mode_attr = { |
4629 | .attr = { |
4630 | .name = "raw_mode" , |
4631 | .mode = S_IRUGO | S_IWUSR, |
4632 | }, |
4633 | .show = ipr_show_raw_mode, |
4634 | .store = ipr_store_raw_mode |
4635 | }; |
4636 | |
4637 | static struct attribute *ipr_dev_attrs[] = { |
4638 | &ipr_adapter_handle_attr.attr, |
4639 | &ipr_resource_path_attr.attr, |
4640 | &ipr_device_id_attr.attr, |
4641 | &ipr_resource_type_attr.attr, |
4642 | &ipr_raw_mode_attr.attr, |
4643 | NULL, |
4644 | }; |
4645 | |
4646 | ATTRIBUTE_GROUPS(ipr_dev); |
4647 | |
4648 | /** |
4649 | * ipr_biosparam - Return the HSC mapping |
4650 | * @sdev: scsi device struct |
4651 | * @block_device: block device pointer |
4652 | * @capacity: capacity of the device |
4653 | * @parm: Array containing returned HSC values. |
4654 | * |
4655 | * This function generates the HSC parms that fdisk uses. |
4656 | * We want to make sure we return something that places partitions |
4657 | * on 4k boundaries for best performance with the IOA. |
4658 | * |
4659 | * Return value: |
4660 | * 0 on success |
4661 | **/ |
4662 | static int ipr_biosparam(struct scsi_device *sdev, |
4663 | struct block_device *block_device, |
4664 | sector_t capacity, int *parm) |
4665 | { |
4666 | int heads, sectors; |
4667 | sector_t cylinders; |
4668 | |
4669 | heads = 128; |
4670 | sectors = 32; |
4671 | |
4672 | cylinders = capacity; |
4673 | sector_div(cylinders, (128 * 32)); |
4674 | |
4675 | /* return result */ |
4676 | parm[0] = heads; |
4677 | parm[1] = sectors; |
4678 | parm[2] = cylinders; |
4679 | |
4680 | return 0; |
4681 | } |
4682 | |
4683 | /** |
4684 | * ipr_find_starget - Find target based on bus/target. |
4685 | * @starget: scsi target struct |
4686 | * |
4687 | * Return value: |
4688 | * resource entry pointer if found / NULL if not found |
4689 | **/ |
4690 | static struct ipr_resource_entry *ipr_find_starget(struct scsi_target *starget) |
4691 | { |
4692 | struct Scsi_Host *shost = dev_to_shost(dev: &starget->dev); |
4693 | struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) shost->hostdata; |
4694 | struct ipr_resource_entry *res; |
4695 | |
4696 | list_for_each_entry(res, &ioa_cfg->used_res_q, queue) { |
4697 | if ((res->bus == starget->channel) && |
4698 | (res->target == starget->id)) { |
4699 | return res; |
4700 | } |
4701 | } |
4702 | |
4703 | return NULL; |
4704 | } |
4705 | |
4706 | /** |
4707 | * ipr_target_destroy - Destroy a SCSI target |
4708 | * @starget: scsi target struct |
4709 | * |
4710 | **/ |
4711 | static void ipr_target_destroy(struct scsi_target *starget) |
4712 | { |
4713 | struct Scsi_Host *shost = dev_to_shost(dev: &starget->dev); |
4714 | struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) shost->hostdata; |
4715 | |
4716 | if (ioa_cfg->sis64) { |
4717 | if (!ipr_find_starget(starget)) { |
4718 | if (starget->channel == IPR_ARRAY_VIRTUAL_BUS) |
4719 | clear_bit(nr: starget->id, addr: ioa_cfg->array_ids); |
4720 | else if (starget->channel == IPR_VSET_VIRTUAL_BUS) |
4721 | clear_bit(nr: starget->id, addr: ioa_cfg->vset_ids); |
4722 | else if (starget->channel == 0) |
4723 | clear_bit(nr: starget->id, addr: ioa_cfg->target_ids); |
4724 | } |
4725 | } |
4726 | } |
4727 | |
4728 | /** |
4729 | * ipr_find_sdev - Find device based on bus/target/lun. |
4730 | * @sdev: scsi device struct |
4731 | * |
4732 | * Return value: |
4733 | * resource entry pointer if found / NULL if not found |
4734 | **/ |
4735 | static struct ipr_resource_entry *ipr_find_sdev(struct scsi_device *sdev) |
4736 | { |
4737 | struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) sdev->host->hostdata; |
4738 | struct ipr_resource_entry *res; |
4739 | |
4740 | list_for_each_entry(res, &ioa_cfg->used_res_q, queue) { |
4741 | if ((res->bus == sdev->channel) && |
4742 | (res->target == sdev->id) && |
4743 | (res->lun == sdev->lun)) |
4744 | return res; |
4745 | } |
4746 | |
4747 | return NULL; |
4748 | } |
4749 | |
4750 | /** |
4751 | * ipr_slave_destroy - Unconfigure a SCSI device |
4752 | * @sdev: scsi device struct |
4753 | * |
4754 | * Return value: |
4755 | * nothing |
4756 | **/ |
4757 | static void ipr_slave_destroy(struct scsi_device *sdev) |
4758 | { |
4759 | struct ipr_resource_entry *res; |
4760 | struct ipr_ioa_cfg *ioa_cfg; |
4761 | unsigned long lock_flags = 0; |
4762 | |
4763 | ioa_cfg = (struct ipr_ioa_cfg *) sdev->host->hostdata; |
4764 | |
4765 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); |
4766 | res = (struct ipr_resource_entry *) sdev->hostdata; |
4767 | if (res) { |
4768 | sdev->hostdata = NULL; |
4769 | res->sdev = NULL; |
4770 | } |
4771 | spin_unlock_irqrestore(lock: ioa_cfg->host->host_lock, flags: lock_flags); |
4772 | } |
4773 | |
4774 | /** |
4775 | * ipr_slave_configure - Configure a SCSI device |
4776 | * @sdev: scsi device struct |
4777 | * |
4778 | * This function configures the specified scsi device. |
4779 | * |
4780 | * Return value: |
4781 | * 0 on success |
4782 | **/ |
4783 | static int ipr_slave_configure(struct scsi_device *sdev) |
4784 | { |
4785 | struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) sdev->host->hostdata; |
4786 | struct ipr_resource_entry *res; |
4787 | unsigned long lock_flags = 0; |
4788 | char buffer[IPR_MAX_RES_PATH_LENGTH]; |
4789 | |
4790 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); |
4791 | res = sdev->hostdata; |
4792 | if (res) { |
4793 | if (ipr_is_af_dasd_device(res)) |
4794 | sdev->type = TYPE_RAID; |
4795 | if (ipr_is_af_dasd_device(res) || ipr_is_ioa_resource(res)) { |
4796 | sdev->scsi_level = 4; |
4797 | sdev->no_uld_attach = 1; |
4798 | } |
4799 | if (ipr_is_vset_device(res)) { |
4800 | sdev->scsi_level = SCSI_SPC_3; |
4801 | sdev->no_report_opcodes = 1; |
4802 | blk_queue_rq_timeout(sdev->request_queue, |
4803 | IPR_VSET_RW_TIMEOUT); |
4804 | blk_queue_max_hw_sectors(sdev->request_queue, IPR_VSET_MAX_SECTORS); |
4805 | } |
4806 | spin_unlock_irqrestore(lock: ioa_cfg->host->host_lock, flags: lock_flags); |
4807 | |
4808 | if (ioa_cfg->sis64) |
4809 | sdev_printk(KERN_INFO, sdev, "Resource path: %s\n" , |
4810 | ipr_format_res_path(ioa_cfg, |
4811 | res->res_path, buffer, sizeof(buffer))); |
4812 | return 0; |
4813 | } |
4814 | spin_unlock_irqrestore(lock: ioa_cfg->host->host_lock, flags: lock_flags); |
4815 | return 0; |
4816 | } |
4817 | |
4818 | /** |
4819 | * ipr_slave_alloc - Prepare for commands to a device. |
4820 | * @sdev: scsi device struct |
4821 | * |
4822 | * This function saves a pointer to the resource entry |
4823 | * in the scsi device struct if the device exists. We |
4824 | * can then use this pointer in ipr_queuecommand when |
4825 | * handling new commands. |
4826 | * |
4827 | * Return value: |
4828 | * 0 on success / -ENXIO if device does not exist |
4829 | **/ |
4830 | static int ipr_slave_alloc(struct scsi_device *sdev) |
4831 | { |
4832 | struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) sdev->host->hostdata; |
4833 | struct ipr_resource_entry *res; |
4834 | unsigned long lock_flags; |
4835 | int rc = -ENXIO; |
4836 | |
4837 | sdev->hostdata = NULL; |
4838 | |
4839 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); |
4840 | |
4841 | res = ipr_find_sdev(sdev); |
4842 | if (res) { |
4843 | res->sdev = sdev; |
4844 | res->add_to_ml = 0; |
4845 | res->in_erp = 0; |
4846 | sdev->hostdata = res; |
4847 | if (!ipr_is_naca_model(res)) |
4848 | res->needs_sync_complete = 1; |
4849 | rc = 0; |
4850 | if (ipr_is_gata(res)) { |
4851 | sdev_printk(KERN_ERR, sdev, "SATA devices are no longer " |
4852 | "supported by this driver. Skipping device.\n" ); |
4853 | spin_unlock_irqrestore(lock: ioa_cfg->host->host_lock, flags: lock_flags); |
4854 | return -ENXIO; |
4855 | } |
4856 | } |
4857 | |
4858 | spin_unlock_irqrestore(lock: ioa_cfg->host->host_lock, flags: lock_flags); |
4859 | |
4860 | return rc; |
4861 | } |
4862 | |
4863 | /** |
4864 | * ipr_match_lun - Match function for specified LUN |
4865 | * @ipr_cmd: ipr command struct |
4866 | * @device: device to match (sdev) |
4867 | * |
4868 | * Returns: |
4869 | * 1 if command matches sdev / 0 if command does not match sdev |
4870 | **/ |
4871 | static int ipr_match_lun(struct ipr_cmnd *ipr_cmd, void *device) |
4872 | { |
4873 | if (ipr_cmd->scsi_cmd && ipr_cmd->scsi_cmd->device == device) |
4874 | return 1; |
4875 | return 0; |
4876 | } |
4877 | |
4878 | /** |
4879 | * ipr_cmnd_is_free - Check if a command is free or not |
4880 | * @ipr_cmd: ipr command struct |
4881 | * |
4882 | * Returns: |
4883 | * true / false |
4884 | **/ |
4885 | static bool ipr_cmnd_is_free(struct ipr_cmnd *ipr_cmd) |
4886 | { |
4887 | struct ipr_cmnd *loop_cmd; |
4888 | |
4889 | list_for_each_entry(loop_cmd, &ipr_cmd->hrrq->hrrq_free_q, queue) { |
4890 | if (loop_cmd == ipr_cmd) |
4891 | return true; |
4892 | } |
4893 | |
4894 | return false; |
4895 | } |
4896 | |
4897 | /** |
4898 | * ipr_wait_for_ops - Wait for matching commands to complete |
4899 | * @ioa_cfg: ioa config struct |
4900 | * @device: device to match (sdev) |
4901 | * @match: match function to use |
4902 | * |
4903 | * Returns: |
4904 | * SUCCESS / FAILED |
4905 | **/ |
4906 | static int ipr_wait_for_ops(struct ipr_ioa_cfg *ioa_cfg, void *device, |
4907 | int (*match)(struct ipr_cmnd *, void *)) |
4908 | { |
4909 | struct ipr_cmnd *ipr_cmd; |
4910 | int wait, i; |
4911 | unsigned long flags; |
4912 | struct ipr_hrr_queue *hrrq; |
4913 | signed long timeout = IPR_ABORT_TASK_TIMEOUT; |
4914 | DECLARE_COMPLETION_ONSTACK(comp); |
4915 | |
4916 | ENTER; |
4917 | do { |
4918 | wait = 0; |
4919 | |
4920 | for_each_hrrq(hrrq, ioa_cfg) { |
4921 | spin_lock_irqsave(hrrq->lock, flags); |
4922 | for (i = hrrq->min_cmd_id; i <= hrrq->max_cmd_id; i++) { |
4923 | ipr_cmd = ioa_cfg->ipr_cmnd_list[i]; |
4924 | if (!ipr_cmnd_is_free(ipr_cmd)) { |
4925 | if (match(ipr_cmd, device)) { |
4926 | ipr_cmd->eh_comp = ∁ |
4927 | wait++; |
4928 | } |
4929 | } |
4930 | } |
4931 | spin_unlock_irqrestore(lock: hrrq->lock, flags); |
4932 | } |
4933 | |
4934 | if (wait) { |
4935 | timeout = wait_for_completion_timeout(x: &comp, timeout); |
4936 | |
4937 | if (!timeout) { |
4938 | wait = 0; |
4939 | |
4940 | for_each_hrrq(hrrq, ioa_cfg) { |
4941 | spin_lock_irqsave(hrrq->lock, flags); |
4942 | for (i = hrrq->min_cmd_id; i <= hrrq->max_cmd_id; i++) { |
4943 | ipr_cmd = ioa_cfg->ipr_cmnd_list[i]; |
4944 | if (!ipr_cmnd_is_free(ipr_cmd)) { |
4945 | if (match(ipr_cmd, device)) { |
4946 | ipr_cmd->eh_comp = NULL; |
4947 | wait++; |
4948 | } |
4949 | } |
4950 | } |
4951 | spin_unlock_irqrestore(lock: hrrq->lock, flags); |
4952 | } |
4953 | |
4954 | if (wait) |
4955 | dev_err(&ioa_cfg->pdev->dev, "Timed out waiting for aborted commands\n" ); |
4956 | LEAVE; |
4957 | return wait ? FAILED : SUCCESS; |
4958 | } |
4959 | } |
4960 | } while (wait); |
4961 | |
4962 | LEAVE; |
4963 | return SUCCESS; |
4964 | } |
4965 | |
4966 | static int ipr_eh_host_reset(struct scsi_cmnd *cmd) |
4967 | { |
4968 | struct ipr_ioa_cfg *ioa_cfg; |
4969 | unsigned long lock_flags = 0; |
4970 | int rc = SUCCESS; |
4971 | |
4972 | ENTER; |
4973 | ioa_cfg = (struct ipr_ioa_cfg *) cmd->device->host->hostdata; |
4974 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); |
4975 | |
4976 | if (!ioa_cfg->in_reset_reload && !ioa_cfg->hrrq[IPR_INIT_HRRQ].ioa_is_dead) { |
4977 | ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_ABBREV); |
4978 | dev_err(&ioa_cfg->pdev->dev, |
4979 | "Adapter being reset as a result of error recovery.\n" ); |
4980 | |
4981 | if (WAIT_FOR_DUMP == ioa_cfg->sdt_state) |
4982 | ioa_cfg->sdt_state = GET_DUMP; |
4983 | } |
4984 | |
4985 | spin_unlock_irqrestore(lock: ioa_cfg->host->host_lock, flags: lock_flags); |
4986 | wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload); |
4987 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); |
4988 | |
4989 | /* If we got hit with a host reset while we were already resetting |
4990 | the adapter for some reason, and the reset failed. */ |
4991 | if (ioa_cfg->hrrq[IPR_INIT_HRRQ].ioa_is_dead) { |
4992 | ipr_trace; |
4993 | rc = FAILED; |
4994 | } |
4995 | |
4996 | spin_unlock_irqrestore(lock: ioa_cfg->host->host_lock, flags: lock_flags); |
4997 | LEAVE; |
4998 | return rc; |
4999 | } |
5000 | |
5001 | /** |
5002 | * ipr_device_reset - Reset the device |
5003 | * @ioa_cfg: ioa config struct |
5004 | * @res: resource entry struct |
5005 | * |
5006 | * This function issues a device reset to the affected device. |
5007 | * If the device is a SCSI device, a LUN reset will be sent |
5008 | * to the device first. If that does not work, a target reset |
5009 | * will be sent. |
5010 | * |
5011 | * Return value: |
5012 | * 0 on success / non-zero on failure |
5013 | **/ |
5014 | static int ipr_device_reset(struct ipr_ioa_cfg *ioa_cfg, |
5015 | struct ipr_resource_entry *res) |
5016 | { |
5017 | struct ipr_cmnd *ipr_cmd; |
5018 | struct ipr_ioarcb *ioarcb; |
5019 | struct ipr_cmd_pkt *cmd_pkt; |
5020 | u32 ioasc; |
5021 | |
5022 | ENTER; |
5023 | ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg); |
5024 | ioarcb = &ipr_cmd->ioarcb; |
5025 | cmd_pkt = &ioarcb->cmd_pkt; |
5026 | |
5027 | if (ipr_cmd->ioa_cfg->sis64) |
5028 | ioarcb->add_cmd_parms_offset = cpu_to_be16(sizeof(*ioarcb)); |
5029 | |
5030 | ioarcb->res_handle = res->res_handle; |
5031 | cmd_pkt->request_type = IPR_RQTYPE_IOACMD; |
5032 | cmd_pkt->cdb[0] = IPR_RESET_DEVICE; |
5033 | |
5034 | ipr_send_blocking_cmd(ipr_cmd, timeout_func: ipr_timeout, IPR_DEVICE_RESET_TIMEOUT); |
5035 | ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc); |
5036 | list_add_tail(new: &ipr_cmd->queue, head: &ipr_cmd->hrrq->hrrq_free_q); |
5037 | |
5038 | LEAVE; |
5039 | return IPR_IOASC_SENSE_KEY(ioasc) ? -EIO : 0; |
5040 | } |
5041 | |
5042 | /** |
5043 | * __ipr_eh_dev_reset - Reset the device |
5044 | * @scsi_cmd: scsi command struct |
5045 | * |
5046 | * This function issues a device reset to the affected device. |
5047 | * A LUN reset will be sent to the device first. If that does |
5048 | * not work, a target reset will be sent. |
5049 | * |
5050 | * Return value: |
5051 | * SUCCESS / FAILED |
5052 | **/ |
5053 | static int __ipr_eh_dev_reset(struct scsi_cmnd *scsi_cmd) |
5054 | { |
5055 | struct ipr_ioa_cfg *ioa_cfg; |
5056 | struct ipr_resource_entry *res; |
5057 | int rc = 0; |
5058 | |
5059 | ENTER; |
5060 | ioa_cfg = (struct ipr_ioa_cfg *) scsi_cmd->device->host->hostdata; |
5061 | res = scsi_cmd->device->hostdata; |
5062 | |
5063 | /* |
5064 | * If we are currently going through reset/reload, return failed. This will force the |
5065 | * mid-layer to call ipr_eh_host_reset, which will then go to sleep and wait for the |
5066 | * reset to complete |
5067 | */ |
5068 | if (ioa_cfg->in_reset_reload) |
5069 | return FAILED; |
5070 | if (ioa_cfg->hrrq[IPR_INIT_HRRQ].ioa_is_dead) |
5071 | return FAILED; |
5072 | |
5073 | res->resetting_device = 1; |
5074 | scmd_printk(KERN_ERR, scsi_cmd, "Resetting device\n" ); |
5075 | |
5076 | rc = ipr_device_reset(ioa_cfg, res); |
5077 | res->resetting_device = 0; |
5078 | res->reset_occurred = 1; |
5079 | |
5080 | LEAVE; |
5081 | return rc ? FAILED : SUCCESS; |
5082 | } |
5083 | |
5084 | static int ipr_eh_dev_reset(struct scsi_cmnd *cmd) |
5085 | { |
5086 | int rc; |
5087 | struct ipr_ioa_cfg *ioa_cfg; |
5088 | struct ipr_resource_entry *res; |
5089 | |
5090 | ioa_cfg = (struct ipr_ioa_cfg *) cmd->device->host->hostdata; |
5091 | res = cmd->device->hostdata; |
5092 | |
5093 | if (!res) |
5094 | return FAILED; |
5095 | |
5096 | spin_lock_irq(lock: cmd->device->host->host_lock); |
5097 | rc = __ipr_eh_dev_reset(scsi_cmd: cmd); |
5098 | spin_unlock_irq(lock: cmd->device->host->host_lock); |
5099 | |
5100 | if (rc == SUCCESS) |
5101 | rc = ipr_wait_for_ops(ioa_cfg, device: cmd->device, match: ipr_match_lun); |
5102 | |
5103 | return rc; |
5104 | } |
5105 | |
5106 | /** |
5107 | * ipr_bus_reset_done - Op done function for bus reset. |
5108 | * @ipr_cmd: ipr command struct |
5109 | * |
5110 | * This function is the op done function for a bus reset |
5111 | * |
5112 | * Return value: |
5113 | * none |
5114 | **/ |
5115 | static void ipr_bus_reset_done(struct ipr_cmnd *ipr_cmd) |
5116 | { |
5117 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; |
5118 | struct ipr_resource_entry *res; |
5119 | |
5120 | ENTER; |
5121 | if (!ioa_cfg->sis64) |
5122 | list_for_each_entry(res, &ioa_cfg->used_res_q, queue) { |
5123 | if (res->res_handle == ipr_cmd->ioarcb.res_handle) { |
5124 | scsi_report_bus_reset(ioa_cfg->host, res->bus); |
5125 | break; |
5126 | } |
5127 | } |
5128 | |
5129 | /* |
5130 | * If abort has not completed, indicate the reset has, else call the |
5131 | * abort's done function to wake the sleeping eh thread |
5132 | */ |
5133 | if (ipr_cmd->sibling->sibling) |
5134 | ipr_cmd->sibling->sibling = NULL; |
5135 | else |
5136 | ipr_cmd->sibling->done(ipr_cmd->sibling); |
5137 | |
5138 | list_add_tail(new: &ipr_cmd->queue, head: &ipr_cmd->hrrq->hrrq_free_q); |
5139 | LEAVE; |
5140 | } |
5141 | |
5142 | /** |
5143 | * ipr_abort_timeout - An abort task has timed out |
5144 | * @t: Timer context used to fetch ipr command struct |
5145 | * |
5146 | * This function handles when an abort task times out. If this |
5147 | * happens we issue a bus reset since we have resources tied |
5148 | * up that must be freed before returning to the midlayer. |
5149 | * |
5150 | * Return value: |
5151 | * none |
5152 | **/ |
5153 | static void ipr_abort_timeout(struct timer_list *t) |
5154 | { |
5155 | struct ipr_cmnd *ipr_cmd = from_timer(ipr_cmd, t, timer); |
5156 | struct ipr_cmnd *reset_cmd; |
5157 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; |
5158 | struct ipr_cmd_pkt *cmd_pkt; |
5159 | unsigned long lock_flags = 0; |
5160 | |
5161 | ENTER; |
5162 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); |
5163 | if (ipr_cmd->completion.done || ioa_cfg->in_reset_reload) { |
5164 | spin_unlock_irqrestore(lock: ioa_cfg->host->host_lock, flags: lock_flags); |
5165 | return; |
5166 | } |
5167 | |
5168 | sdev_printk(KERN_ERR, ipr_cmd->u.sdev, "Abort timed out. Resetting bus.\n" ); |
5169 | reset_cmd = ipr_get_free_ipr_cmnd(ioa_cfg); |
5170 | ipr_cmd->sibling = reset_cmd; |
5171 | reset_cmd->sibling = ipr_cmd; |
5172 | reset_cmd->ioarcb.res_handle = ipr_cmd->ioarcb.res_handle; |
5173 | cmd_pkt = &reset_cmd->ioarcb.cmd_pkt; |
5174 | cmd_pkt->request_type = IPR_RQTYPE_IOACMD; |
5175 | cmd_pkt->cdb[0] = IPR_RESET_DEVICE; |
5176 | cmd_pkt->cdb[2] = IPR_RESET_TYPE_SELECT | IPR_BUS_RESET; |
5177 | |
5178 | ipr_do_req(ipr_cmd: reset_cmd, done: ipr_bus_reset_done, timeout_func: ipr_timeout, IPR_DEVICE_RESET_TIMEOUT); |
5179 | spin_unlock_irqrestore(lock: ioa_cfg->host->host_lock, flags: lock_flags); |
5180 | LEAVE; |
5181 | } |
5182 | |
5183 | /** |
5184 | * ipr_cancel_op - Cancel specified op |
5185 | * @scsi_cmd: scsi command struct |
5186 | * |
5187 | * This function cancels specified op. |
5188 | * |
5189 | * Return value: |
5190 | * SUCCESS / FAILED |
5191 | **/ |
5192 | static int ipr_cancel_op(struct scsi_cmnd *scsi_cmd) |
5193 | { |
5194 | struct ipr_cmnd *ipr_cmd; |
5195 | struct ipr_ioa_cfg *ioa_cfg; |
5196 | struct ipr_resource_entry *res; |
5197 | struct ipr_cmd_pkt *cmd_pkt; |
5198 | u32 ioasc; |
5199 | int i, op_found = 0; |
5200 | struct ipr_hrr_queue *hrrq; |
5201 | |
5202 | ENTER; |
5203 | ioa_cfg = (struct ipr_ioa_cfg *)scsi_cmd->device->host->hostdata; |
5204 | res = scsi_cmd->device->hostdata; |
5205 | |
5206 | /* If we are currently going through reset/reload, return failed. |
5207 | * This will force the mid-layer to call ipr_eh_host_reset, |
5208 | * which will then go to sleep and wait for the reset to complete |
5209 | */ |
5210 | if (ioa_cfg->in_reset_reload || |
5211 | ioa_cfg->hrrq[IPR_INIT_HRRQ].ioa_is_dead) |
5212 | return FAILED; |
5213 | if (!res) |
5214 | return FAILED; |
5215 | |
5216 | /* |
5217 | * If we are aborting a timed out op, chances are that the timeout was caused |
5218 | * by a still not detected EEH error. In such cases, reading a register will |
5219 | * trigger the EEH recovery infrastructure. |
5220 | */ |
5221 | readl(addr: ioa_cfg->regs.sense_interrupt_reg); |
5222 | |
5223 | if (!ipr_is_gscsi(res)) |
5224 | return FAILED; |
5225 | |
5226 | for_each_hrrq(hrrq, ioa_cfg) { |
5227 | spin_lock(lock: &hrrq->_lock); |
5228 | for (i = hrrq->min_cmd_id; i <= hrrq->max_cmd_id; i++) { |
5229 | if (ioa_cfg->ipr_cmnd_list[i]->scsi_cmd == scsi_cmd) { |
5230 | if (!ipr_cmnd_is_free(ipr_cmd: ioa_cfg->ipr_cmnd_list[i])) { |
5231 | op_found = 1; |
5232 | break; |
5233 | } |
5234 | } |
5235 | } |
5236 | spin_unlock(lock: &hrrq->_lock); |
5237 | } |
5238 | |
5239 | if (!op_found) |
5240 | return SUCCESS; |
5241 | |
5242 | ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg); |
5243 | ipr_cmd->ioarcb.res_handle = res->res_handle; |
5244 | cmd_pkt = &ipr_cmd->ioarcb.cmd_pkt; |
5245 | cmd_pkt->request_type = IPR_RQTYPE_IOACMD; |
5246 | cmd_pkt->cdb[0] = IPR_CANCEL_ALL_REQUESTS; |
5247 | ipr_cmd->u.sdev = scsi_cmd->device; |
5248 | |
5249 | scmd_printk(KERN_ERR, scsi_cmd, "Aborting command: %02X\n" , |
5250 | scsi_cmd->cmnd[0]); |
5251 | ipr_send_blocking_cmd(ipr_cmd, timeout_func: ipr_abort_timeout, IPR_CANCEL_ALL_TIMEOUT); |
5252 | ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc); |
5253 | |
5254 | /* |
5255 | * If the abort task timed out and we sent a bus reset, we will get |
5256 | * one the following responses to the abort |
5257 | */ |
5258 | if (ioasc == IPR_IOASC_BUS_WAS_RESET || ioasc == IPR_IOASC_SYNC_REQUIRED) { |
5259 | ioasc = 0; |
5260 | ipr_trace; |
5261 | } |
5262 | |
5263 | list_add_tail(new: &ipr_cmd->queue, head: &ipr_cmd->hrrq->hrrq_free_q); |
5264 | if (!ipr_is_naca_model(res)) |
5265 | res->needs_sync_complete = 1; |
5266 | |
5267 | LEAVE; |
5268 | return IPR_IOASC_SENSE_KEY(ioasc) ? FAILED : SUCCESS; |
5269 | } |
5270 | |
5271 | /** |
5272 | * ipr_scan_finished - Report whether scan is done |
5273 | * @shost: scsi host struct |
5274 | * @elapsed_time: elapsed time |
5275 | * |
5276 | * Return value: |
5277 | * 0 if scan in progress / 1 if scan is complete |
5278 | **/ |
5279 | static int ipr_scan_finished(struct Scsi_Host *shost, unsigned long elapsed_time) |
5280 | { |
5281 | unsigned long lock_flags; |
5282 | struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *) shost->hostdata; |
5283 | int rc = 0; |
5284 | |
5285 | spin_lock_irqsave(shost->host_lock, lock_flags); |
5286 | if (ioa_cfg->hrrq[IPR_INIT_HRRQ].ioa_is_dead || ioa_cfg->scan_done) |
5287 | rc = 1; |
5288 | if ((elapsed_time/HZ) > (ioa_cfg->transop_timeout * 2)) |
5289 | rc = 1; |
5290 | spin_unlock_irqrestore(lock: shost->host_lock, flags: lock_flags); |
5291 | return rc; |
5292 | } |
5293 | |
5294 | /** |
5295 | * ipr_eh_abort - Reset the host adapter |
5296 | * @scsi_cmd: scsi command struct |
5297 | * |
5298 | * Return value: |
5299 | * SUCCESS / FAILED |
5300 | **/ |
5301 | static int ipr_eh_abort(struct scsi_cmnd *scsi_cmd) |
5302 | { |
5303 | unsigned long flags; |
5304 | int rc; |
5305 | struct ipr_ioa_cfg *ioa_cfg; |
5306 | |
5307 | ENTER; |
5308 | |
5309 | ioa_cfg = (struct ipr_ioa_cfg *) scsi_cmd->device->host->hostdata; |
5310 | |
5311 | spin_lock_irqsave(scsi_cmd->device->host->host_lock, flags); |
5312 | rc = ipr_cancel_op(scsi_cmd); |
5313 | spin_unlock_irqrestore(lock: scsi_cmd->device->host->host_lock, flags); |
5314 | |
5315 | if (rc == SUCCESS) |
5316 | rc = ipr_wait_for_ops(ioa_cfg, device: scsi_cmd->device, match: ipr_match_lun); |
5317 | LEAVE; |
5318 | return rc; |
5319 | } |
5320 | |
5321 | /** |
5322 | * ipr_handle_other_interrupt - Handle "other" interrupts |
5323 | * @ioa_cfg: ioa config struct |
5324 | * @int_reg: interrupt register |
5325 | * |
5326 | * Return value: |
5327 | * IRQ_NONE / IRQ_HANDLED |
5328 | **/ |
5329 | static irqreturn_t ipr_handle_other_interrupt(struct ipr_ioa_cfg *ioa_cfg, |
5330 | u32 int_reg) |
5331 | { |
5332 | irqreturn_t rc = IRQ_HANDLED; |
5333 | u32 int_mask_reg; |
5334 | |
5335 | int_mask_reg = readl(addr: ioa_cfg->regs.sense_interrupt_mask_reg32); |
5336 | int_reg &= ~int_mask_reg; |
5337 | |
5338 | /* If an interrupt on the adapter did not occur, ignore it. |
5339 | * Or in the case of SIS 64, check for a stage change interrupt. |
5340 | */ |
5341 | if ((int_reg & IPR_PCII_OPER_INTERRUPTS) == 0) { |
5342 | if (ioa_cfg->sis64) { |
5343 | int_mask_reg = readl(addr: ioa_cfg->regs.sense_interrupt_mask_reg); |
5344 | int_reg = readl(addr: ioa_cfg->regs.sense_interrupt_reg) & ~int_mask_reg; |
5345 | if (int_reg & IPR_PCII_IPL_STAGE_CHANGE) { |
5346 | |
5347 | /* clear stage change */ |
5348 | writel(IPR_PCII_IPL_STAGE_CHANGE, addr: ioa_cfg->regs.clr_interrupt_reg); |
5349 | int_reg = readl(addr: ioa_cfg->regs.sense_interrupt_reg) & ~int_mask_reg; |
5350 | list_del(entry: &ioa_cfg->reset_cmd->queue); |
5351 | del_timer(timer: &ioa_cfg->reset_cmd->timer); |
5352 | ipr_reset_ioa_job(ioa_cfg->reset_cmd); |
5353 | return IRQ_HANDLED; |
5354 | } |
5355 | } |
5356 | |
5357 | return IRQ_NONE; |
5358 | } |
5359 | |
5360 | if (int_reg & IPR_PCII_IOA_TRANS_TO_OPER) { |
5361 | /* Mask the interrupt */ |
5362 | writel(IPR_PCII_IOA_TRANS_TO_OPER, addr: ioa_cfg->regs.set_interrupt_mask_reg); |
5363 | int_reg = readl(addr: ioa_cfg->regs.sense_interrupt_reg); |
5364 | |
5365 | list_del(entry: &ioa_cfg->reset_cmd->queue); |
5366 | del_timer(timer: &ioa_cfg->reset_cmd->timer); |
5367 | ipr_reset_ioa_job(ioa_cfg->reset_cmd); |
5368 | } else if ((int_reg & IPR_PCII_HRRQ_UPDATED) == int_reg) { |
5369 | if (ioa_cfg->clear_isr) { |
5370 | if (ipr_debug && printk_ratelimit()) |
5371 | dev_err(&ioa_cfg->pdev->dev, |
5372 | "Spurious interrupt detected. 0x%08X\n" , int_reg); |
5373 | writel(IPR_PCII_HRRQ_UPDATED, addr: ioa_cfg->regs.clr_interrupt_reg32); |
5374 | int_reg = readl(addr: ioa_cfg->regs.sense_interrupt_reg32); |
5375 | return IRQ_NONE; |
5376 | } |
5377 | } else { |
5378 | if (int_reg & IPR_PCII_IOA_UNIT_CHECKED) |
5379 | ioa_cfg->ioa_unit_checked = 1; |
5380 | else if (int_reg & IPR_PCII_NO_HOST_RRQ) |
5381 | dev_err(&ioa_cfg->pdev->dev, |
5382 | "No Host RRQ. 0x%08X\n" , int_reg); |
5383 | else |
5384 | dev_err(&ioa_cfg->pdev->dev, |
5385 | "Permanent IOA failure. 0x%08X\n" , int_reg); |
5386 | |
5387 | if (WAIT_FOR_DUMP == ioa_cfg->sdt_state) |
5388 | ioa_cfg->sdt_state = GET_DUMP; |
5389 | |
5390 | ipr_mask_and_clear_interrupts(ioa_cfg, clr_ints: ~0); |
5391 | ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE); |
5392 | } |
5393 | |
5394 | return rc; |
5395 | } |
5396 | |
5397 | /** |
5398 | * ipr_isr_eh - Interrupt service routine error handler |
5399 | * @ioa_cfg: ioa config struct |
5400 | * @msg: message to log |
5401 | * @number: various meanings depending on the caller/message |
5402 | * |
5403 | * Return value: |
5404 | * none |
5405 | **/ |
5406 | static void ipr_isr_eh(struct ipr_ioa_cfg *ioa_cfg, char *msg, u16 number) |
5407 | { |
5408 | ioa_cfg->errors_logged++; |
5409 | dev_err(&ioa_cfg->pdev->dev, "%s %d\n" , msg, number); |
5410 | |
5411 | if (WAIT_FOR_DUMP == ioa_cfg->sdt_state) |
5412 | ioa_cfg->sdt_state = GET_DUMP; |
5413 | |
5414 | ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE); |
5415 | } |
5416 | |
5417 | static int ipr_process_hrrq(struct ipr_hrr_queue *hrr_queue, int budget, |
5418 | struct list_head *doneq) |
5419 | { |
5420 | u32 ioasc; |
5421 | u16 cmd_index; |
5422 | struct ipr_cmnd *ipr_cmd; |
5423 | struct ipr_ioa_cfg *ioa_cfg = hrr_queue->ioa_cfg; |
5424 | int num_hrrq = 0; |
5425 | |
5426 | /* If interrupts are disabled, ignore the interrupt */ |
5427 | if (!hrr_queue->allow_interrupts) |
5428 | return 0; |
5429 | |
5430 | while ((be32_to_cpu(*hrr_queue->hrrq_curr) & IPR_HRRQ_TOGGLE_BIT) == |
5431 | hrr_queue->toggle_bit) { |
5432 | |
5433 | cmd_index = (be32_to_cpu(*hrr_queue->hrrq_curr) & |
5434 | IPR_HRRQ_REQ_RESP_HANDLE_MASK) >> |
5435 | IPR_HRRQ_REQ_RESP_HANDLE_SHIFT; |
5436 | |
5437 | if (unlikely(cmd_index > hrr_queue->max_cmd_id || |
5438 | cmd_index < hrr_queue->min_cmd_id)) { |
5439 | ipr_isr_eh(ioa_cfg, |
5440 | msg: "Invalid response handle from IOA: " , |
5441 | number: cmd_index); |
5442 | break; |
5443 | } |
5444 | |
5445 | ipr_cmd = ioa_cfg->ipr_cmnd_list[cmd_index]; |
5446 | ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc); |
5447 | |
5448 | ipr_trc_hook(ipr_cmd, IPR_TRACE_FINISH, add_data: ioasc); |
5449 | |
5450 | list_move_tail(list: &ipr_cmd->queue, head: doneq); |
5451 | |
5452 | if (hrr_queue->hrrq_curr < hrr_queue->hrrq_end) { |
5453 | hrr_queue->hrrq_curr++; |
5454 | } else { |
5455 | hrr_queue->hrrq_curr = hrr_queue->hrrq_start; |
5456 | hrr_queue->toggle_bit ^= 1u; |
5457 | } |
5458 | num_hrrq++; |
5459 | if (budget > 0 && num_hrrq >= budget) |
5460 | break; |
5461 | } |
5462 | |
5463 | return num_hrrq; |
5464 | } |
5465 | |
5466 | static int ipr_iopoll(struct irq_poll *iop, int budget) |
5467 | { |
5468 | struct ipr_hrr_queue *hrrq; |
5469 | struct ipr_cmnd *ipr_cmd, *temp; |
5470 | unsigned long hrrq_flags; |
5471 | int completed_ops; |
5472 | LIST_HEAD(doneq); |
5473 | |
5474 | hrrq = container_of(iop, struct ipr_hrr_queue, iopoll); |
5475 | |
5476 | spin_lock_irqsave(hrrq->lock, hrrq_flags); |
5477 | completed_ops = ipr_process_hrrq(hrr_queue: hrrq, budget, doneq: &doneq); |
5478 | |
5479 | if (completed_ops < budget) |
5480 | irq_poll_complete(iop); |
5481 | spin_unlock_irqrestore(lock: hrrq->lock, flags: hrrq_flags); |
5482 | |
5483 | list_for_each_entry_safe(ipr_cmd, temp, &doneq, queue) { |
5484 | list_del(entry: &ipr_cmd->queue); |
5485 | del_timer(timer: &ipr_cmd->timer); |
5486 | ipr_cmd->fast_done(ipr_cmd); |
5487 | } |
5488 | |
5489 | return completed_ops; |
5490 | } |
5491 | |
5492 | /** |
5493 | * ipr_isr - Interrupt service routine |
5494 | * @irq: irq number |
5495 | * @devp: pointer to ioa config struct |
5496 | * |
5497 | * Return value: |
5498 | * IRQ_NONE / IRQ_HANDLED |
5499 | **/ |
5500 | static irqreturn_t ipr_isr(int irq, void *devp) |
5501 | { |
5502 | struct ipr_hrr_queue *hrrq = (struct ipr_hrr_queue *)devp; |
5503 | struct ipr_ioa_cfg *ioa_cfg = hrrq->ioa_cfg; |
5504 | unsigned long hrrq_flags = 0; |
5505 | u32 int_reg = 0; |
5506 | int num_hrrq = 0; |
5507 | int irq_none = 0; |
5508 | struct ipr_cmnd *ipr_cmd, *temp; |
5509 | irqreturn_t rc = IRQ_NONE; |
5510 | LIST_HEAD(doneq); |
5511 | |
5512 | spin_lock_irqsave(hrrq->lock, hrrq_flags); |
5513 | /* If interrupts are disabled, ignore the interrupt */ |
5514 | if (!hrrq->allow_interrupts) { |
5515 | spin_unlock_irqrestore(lock: hrrq->lock, flags: hrrq_flags); |
5516 | return IRQ_NONE; |
5517 | } |
5518 | |
5519 | while (1) { |
5520 | if (ipr_process_hrrq(hrr_queue: hrrq, budget: -1, doneq: &doneq)) { |
5521 | rc = IRQ_HANDLED; |
5522 | |
5523 | if (!ioa_cfg->clear_isr) |
5524 | break; |
5525 | |
5526 | /* Clear the PCI interrupt */ |
5527 | num_hrrq = 0; |
5528 | do { |
5529 | writel(IPR_PCII_HRRQ_UPDATED, |
5530 | addr: ioa_cfg->regs.clr_interrupt_reg32); |
5531 | int_reg = readl(addr: ioa_cfg->regs.sense_interrupt_reg32); |
5532 | } while (int_reg & IPR_PCII_HRRQ_UPDATED && |
5533 | num_hrrq++ < IPR_MAX_HRRQ_RETRIES); |
5534 | |
5535 | } else if (rc == IRQ_NONE && irq_none == 0) { |
5536 | int_reg = readl(addr: ioa_cfg->regs.sense_interrupt_reg32); |
5537 | irq_none++; |
5538 | } else if (num_hrrq == IPR_MAX_HRRQ_RETRIES && |
5539 | int_reg & IPR_PCII_HRRQ_UPDATED) { |
5540 | ipr_isr_eh(ioa_cfg, |
5541 | msg: "Error clearing HRRQ: " , number: num_hrrq); |
5542 | rc = IRQ_HANDLED; |
5543 | break; |
5544 | } else |
5545 | break; |
5546 | } |
5547 | |
5548 | if (unlikely(rc == IRQ_NONE)) |
5549 | rc = ipr_handle_other_interrupt(ioa_cfg, int_reg); |
5550 | |
5551 | spin_unlock_irqrestore(lock: hrrq->lock, flags: hrrq_flags); |
5552 | list_for_each_entry_safe(ipr_cmd, temp, &doneq, queue) { |
5553 | list_del(entry: &ipr_cmd->queue); |
5554 | del_timer(timer: &ipr_cmd->timer); |
5555 | ipr_cmd->fast_done(ipr_cmd); |
5556 | } |
5557 | return rc; |
5558 | } |
5559 | |
5560 | /** |
5561 | * ipr_isr_mhrrq - Interrupt service routine |
5562 | * @irq: irq number |
5563 | * @devp: pointer to ioa config struct |
5564 | * |
5565 | * Return value: |
5566 | * IRQ_NONE / IRQ_HANDLED |
5567 | **/ |
5568 | static irqreturn_t ipr_isr_mhrrq(int irq, void *devp) |
5569 | { |
5570 | struct ipr_hrr_queue *hrrq = (struct ipr_hrr_queue *)devp; |
5571 | struct ipr_ioa_cfg *ioa_cfg = hrrq->ioa_cfg; |
5572 | unsigned long hrrq_flags = 0; |
5573 | struct ipr_cmnd *ipr_cmd, *temp; |
5574 | irqreturn_t rc = IRQ_NONE; |
5575 | LIST_HEAD(doneq); |
5576 | |
5577 | spin_lock_irqsave(hrrq->lock, hrrq_flags); |
5578 | |
5579 | /* If interrupts are disabled, ignore the interrupt */ |
5580 | if (!hrrq->allow_interrupts) { |
5581 | spin_unlock_irqrestore(lock: hrrq->lock, flags: hrrq_flags); |
5582 | return IRQ_NONE; |
5583 | } |
5584 | |
5585 | if (ioa_cfg->iopoll_weight && ioa_cfg->sis64 && ioa_cfg->nvectors > 1) { |
5586 | if ((be32_to_cpu(*hrrq->hrrq_curr) & IPR_HRRQ_TOGGLE_BIT) == |
5587 | hrrq->toggle_bit) { |
5588 | irq_poll_sched(&hrrq->iopoll); |
5589 | spin_unlock_irqrestore(lock: hrrq->lock, flags: hrrq_flags); |
5590 | return IRQ_HANDLED; |
5591 | } |
5592 | } else { |
5593 | if ((be32_to_cpu(*hrrq->hrrq_curr) & IPR_HRRQ_TOGGLE_BIT) == |
5594 | hrrq->toggle_bit) |
5595 | |
5596 | if (ipr_process_hrrq(hrr_queue: hrrq, budget: -1, doneq: &doneq)) |
5597 | rc = IRQ_HANDLED; |
5598 | } |
5599 | |
5600 | spin_unlock_irqrestore(lock: hrrq->lock, flags: hrrq_flags); |
5601 | |
5602 | list_for_each_entry_safe(ipr_cmd, temp, &doneq, queue) { |
5603 | list_del(entry: &ipr_cmd->queue); |
5604 | del_timer(timer: &ipr_cmd->timer); |
5605 | ipr_cmd->fast_done(ipr_cmd); |
5606 | } |
5607 | return rc; |
5608 | } |
5609 | |
5610 | /** |
5611 | * ipr_build_ioadl64 - Build a scatter/gather list and map the buffer |
5612 | * @ioa_cfg: ioa config struct |
5613 | * @ipr_cmd: ipr command struct |
5614 | * |
5615 | * Return value: |
5616 | * 0 on success / -1 on failure |
5617 | **/ |
5618 | static int ipr_build_ioadl64(struct ipr_ioa_cfg *ioa_cfg, |
5619 | struct ipr_cmnd *ipr_cmd) |
5620 | { |
5621 | int i, nseg; |
5622 | struct scatterlist *sg; |
5623 | u32 length; |
5624 | u32 ioadl_flags = 0; |
5625 | struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd; |
5626 | struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb; |
5627 | struct ipr_ioadl64_desc *ioadl64 = ipr_cmd->i.ioadl64; |
5628 | |
5629 | length = scsi_bufflen(cmd: scsi_cmd); |
5630 | if (!length) |
5631 | return 0; |
5632 | |
5633 | nseg = scsi_dma_map(cmd: scsi_cmd); |
5634 | if (nseg < 0) { |
5635 | if (printk_ratelimit()) |
5636 | dev_err(&ioa_cfg->pdev->dev, "scsi_dma_map failed!\n" ); |
5637 | return -1; |
5638 | } |
5639 | |
5640 | ipr_cmd->dma_use_sg = nseg; |
5641 | |
5642 | ioarcb->data_transfer_length = cpu_to_be32(length); |
5643 | ioarcb->ioadl_len = |
5644 | cpu_to_be32(sizeof(struct ipr_ioadl64_desc) * ipr_cmd->dma_use_sg); |
5645 | |
5646 | if (scsi_cmd->sc_data_direction == DMA_TO_DEVICE) { |
5647 | ioadl_flags = IPR_IOADL_FLAGS_WRITE; |
5648 | ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ; |
5649 | } else if (scsi_cmd->sc_data_direction == DMA_FROM_DEVICE) |
5650 | ioadl_flags = IPR_IOADL_FLAGS_READ; |
5651 | |
5652 | scsi_for_each_sg(scsi_cmd, sg, ipr_cmd->dma_use_sg, i) { |
5653 | ioadl64[i].flags = cpu_to_be32(ioadl_flags); |
5654 | ioadl64[i].data_len = cpu_to_be32(sg_dma_len(sg)); |
5655 | ioadl64[i].address = cpu_to_be64(sg_dma_address(sg)); |
5656 | } |
5657 | |
5658 | ioadl64[i-1].flags |= cpu_to_be32(IPR_IOADL_FLAGS_LAST); |
5659 | return 0; |
5660 | } |
5661 | |
5662 | /** |
5663 | * ipr_build_ioadl - Build a scatter/gather list and map the buffer |
5664 | * @ioa_cfg: ioa config struct |
5665 | * @ipr_cmd: ipr command struct |
5666 | * |
5667 | * Return value: |
5668 | * 0 on success / -1 on failure |
5669 | **/ |
5670 | static int ipr_build_ioadl(struct ipr_ioa_cfg *ioa_cfg, |
5671 | struct ipr_cmnd *ipr_cmd) |
5672 | { |
5673 | int i, nseg; |
5674 | struct scatterlist *sg; |
5675 | u32 length; |
5676 | u32 ioadl_flags = 0; |
5677 | struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd; |
5678 | struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb; |
5679 | struct ipr_ioadl_desc *ioadl = ipr_cmd->i.ioadl; |
5680 | |
5681 | length = scsi_bufflen(cmd: scsi_cmd); |
5682 | if (!length) |
5683 | return 0; |
5684 | |
5685 | nseg = scsi_dma_map(cmd: scsi_cmd); |
5686 | if (nseg < 0) { |
5687 | dev_err(&ioa_cfg->pdev->dev, "scsi_dma_map failed!\n" ); |
5688 | return -1; |
5689 | } |
5690 | |
5691 | ipr_cmd->dma_use_sg = nseg; |
5692 | |
5693 | if (scsi_cmd->sc_data_direction == DMA_TO_DEVICE) { |
5694 | ioadl_flags = IPR_IOADL_FLAGS_WRITE; |
5695 | ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ; |
5696 | ioarcb->data_transfer_length = cpu_to_be32(length); |
5697 | ioarcb->ioadl_len = |
5698 | cpu_to_be32(sizeof(struct ipr_ioadl_desc) * ipr_cmd->dma_use_sg); |
5699 | } else if (scsi_cmd->sc_data_direction == DMA_FROM_DEVICE) { |
5700 | ioadl_flags = IPR_IOADL_FLAGS_READ; |
5701 | ioarcb->read_data_transfer_length = cpu_to_be32(length); |
5702 | ioarcb->read_ioadl_len = |
5703 | cpu_to_be32(sizeof(struct ipr_ioadl_desc) * ipr_cmd->dma_use_sg); |
5704 | } |
5705 | |
5706 | if (ipr_cmd->dma_use_sg <= ARRAY_SIZE(ioarcb->u.add_data.u.ioadl)) { |
5707 | ioadl = ioarcb->u.add_data.u.ioadl; |
5708 | ioarcb->write_ioadl_addr = cpu_to_be32((ipr_cmd->dma_addr) + |
5709 | offsetof(struct ipr_ioarcb, u.add_data)); |
5710 | ioarcb->read_ioadl_addr = ioarcb->write_ioadl_addr; |
5711 | } |
5712 | |
5713 | scsi_for_each_sg(scsi_cmd, sg, ipr_cmd->dma_use_sg, i) { |
5714 | ioadl[i].flags_and_data_len = |
5715 | cpu_to_be32(ioadl_flags | sg_dma_len(sg)); |
5716 | ioadl[i].address = cpu_to_be32(sg_dma_address(sg)); |
5717 | } |
5718 | |
5719 | ioadl[i-1].flags_and_data_len |= cpu_to_be32(IPR_IOADL_FLAGS_LAST); |
5720 | return 0; |
5721 | } |
5722 | |
5723 | /** |
5724 | * __ipr_erp_done - Process completion of ERP for a device |
5725 | * @ipr_cmd: ipr command struct |
5726 | * |
5727 | * This function copies the sense buffer into the scsi_cmd |
5728 | * struct and pushes the scsi_done function. |
5729 | * |
5730 | * Return value: |
5731 | * nothing |
5732 | **/ |
5733 | static void __ipr_erp_done(struct ipr_cmnd *ipr_cmd) |
5734 | { |
5735 | struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd; |
5736 | struct ipr_resource_entry *res = scsi_cmd->device->hostdata; |
5737 | u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc); |
5738 | |
5739 | if (IPR_IOASC_SENSE_KEY(ioasc) > 0) { |
5740 | scsi_cmd->result |= (DID_ERROR << 16); |
5741 | scmd_printk(KERN_ERR, scsi_cmd, |
5742 | "Request Sense failed with IOASC: 0x%08X\n" , ioasc); |
5743 | } else { |
5744 | memcpy(scsi_cmd->sense_buffer, ipr_cmd->sense_buffer, |
5745 | SCSI_SENSE_BUFFERSIZE); |
5746 | } |
5747 | |
5748 | if (res) { |
5749 | if (!ipr_is_naca_model(res)) |
5750 | res->needs_sync_complete = 1; |
5751 | res->in_erp = 0; |
5752 | } |
5753 | scsi_dma_unmap(cmd: ipr_cmd->scsi_cmd); |
5754 | scsi_done(cmd: scsi_cmd); |
5755 | if (ipr_cmd->eh_comp) |
5756 | complete(ipr_cmd->eh_comp); |
5757 | list_add_tail(new: &ipr_cmd->queue, head: &ipr_cmd->hrrq->hrrq_free_q); |
5758 | } |
5759 | |
5760 | /** |
5761 | * ipr_erp_done - Process completion of ERP for a device |
5762 | * @ipr_cmd: ipr command struct |
5763 | * |
5764 | * This function copies the sense buffer into the scsi_cmd |
5765 | * struct and pushes the scsi_done function. |
5766 | * |
5767 | * Return value: |
5768 | * nothing |
5769 | **/ |
5770 | static void ipr_erp_done(struct ipr_cmnd *ipr_cmd) |
5771 | { |
5772 | struct ipr_hrr_queue *hrrq = ipr_cmd->hrrq; |
5773 | unsigned long hrrq_flags; |
5774 | |
5775 | spin_lock_irqsave(&hrrq->_lock, hrrq_flags); |
5776 | __ipr_erp_done(ipr_cmd); |
5777 | spin_unlock_irqrestore(lock: &hrrq->_lock, flags: hrrq_flags); |
5778 | } |
5779 | |
5780 | /** |
5781 | * ipr_reinit_ipr_cmnd_for_erp - Re-initialize a cmnd block to be used for ERP |
5782 | * @ipr_cmd: ipr command struct |
5783 | * |
5784 | * Return value: |
5785 | * none |
5786 | **/ |
5787 | static void ipr_reinit_ipr_cmnd_for_erp(struct ipr_cmnd *ipr_cmd) |
5788 | { |
5789 | struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb; |
5790 | struct ipr_ioasa *ioasa = &ipr_cmd->s.ioasa; |
5791 | dma_addr_t dma_addr = ipr_cmd->dma_addr; |
5792 | |
5793 | memset(&ioarcb->cmd_pkt, 0, sizeof(struct ipr_cmd_pkt)); |
5794 | ioarcb->data_transfer_length = 0; |
5795 | ioarcb->read_data_transfer_length = 0; |
5796 | ioarcb->ioadl_len = 0; |
5797 | ioarcb->read_ioadl_len = 0; |
5798 | ioasa->hdr.ioasc = 0; |
5799 | ioasa->hdr.residual_data_len = 0; |
5800 | |
5801 | if (ipr_cmd->ioa_cfg->sis64) |
5802 | ioarcb->u.sis64_addr_data.data_ioadl_addr = |
5803 | cpu_to_be64(dma_addr + offsetof(struct ipr_cmnd, i.ioadl64)); |
5804 | else { |
5805 | ioarcb->write_ioadl_addr = |
5806 | cpu_to_be32(dma_addr + offsetof(struct ipr_cmnd, i.ioadl)); |
5807 | ioarcb->read_ioadl_addr = ioarcb->write_ioadl_addr; |
5808 | } |
5809 | } |
5810 | |
5811 | /** |
5812 | * __ipr_erp_request_sense - Send request sense to a device |
5813 | * @ipr_cmd: ipr command struct |
5814 | * |
5815 | * This function sends a request sense to a device as a result |
5816 | * of a check condition. |
5817 | * |
5818 | * Return value: |
5819 | * nothing |
5820 | **/ |
5821 | static void __ipr_erp_request_sense(struct ipr_cmnd *ipr_cmd) |
5822 | { |
5823 | struct ipr_cmd_pkt *cmd_pkt = &ipr_cmd->ioarcb.cmd_pkt; |
5824 | u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc); |
5825 | |
5826 | if (IPR_IOASC_SENSE_KEY(ioasc) > 0) { |
5827 | __ipr_erp_done(ipr_cmd); |
5828 | return; |
5829 | } |
5830 | |
5831 | ipr_reinit_ipr_cmnd_for_erp(ipr_cmd); |
5832 | |
5833 | cmd_pkt->request_type = IPR_RQTYPE_SCSICDB; |
5834 | cmd_pkt->cdb[0] = REQUEST_SENSE; |
5835 | cmd_pkt->cdb[4] = SCSI_SENSE_BUFFERSIZE; |
5836 | cmd_pkt->flags_hi |= IPR_FLAGS_HI_SYNC_OVERRIDE; |
5837 | cmd_pkt->flags_hi |= IPR_FLAGS_HI_NO_ULEN_CHK; |
5838 | cmd_pkt->timeout = cpu_to_be16(IPR_REQUEST_SENSE_TIMEOUT / HZ); |
5839 | |
5840 | ipr_init_ioadl(ipr_cmd, dma_addr: ipr_cmd->sense_buffer_dma, |
5841 | SCSI_SENSE_BUFFERSIZE, IPR_IOADL_FLAGS_READ_LAST); |
5842 | |
5843 | ipr_do_req(ipr_cmd, done: ipr_erp_done, timeout_func: ipr_timeout, |
5844 | IPR_REQUEST_SENSE_TIMEOUT * 2); |
5845 | } |
5846 | |
5847 | /** |
5848 | * ipr_erp_request_sense - Send request sense to a device |
5849 | * @ipr_cmd: ipr command struct |
5850 | * |
5851 | * This function sends a request sense to a device as a result |
5852 | * of a check condition. |
5853 | * |
5854 | * Return value: |
5855 | * nothing |
5856 | **/ |
5857 | static void ipr_erp_request_sense(struct ipr_cmnd *ipr_cmd) |
5858 | { |
5859 | struct ipr_hrr_queue *hrrq = ipr_cmd->hrrq; |
5860 | unsigned long hrrq_flags; |
5861 | |
5862 | spin_lock_irqsave(&hrrq->_lock, hrrq_flags); |
5863 | __ipr_erp_request_sense(ipr_cmd); |
5864 | spin_unlock_irqrestore(lock: &hrrq->_lock, flags: hrrq_flags); |
5865 | } |
5866 | |
5867 | /** |
5868 | * ipr_erp_cancel_all - Send cancel all to a device |
5869 | * @ipr_cmd: ipr command struct |
5870 | * |
5871 | * This function sends a cancel all to a device to clear the |
5872 | * queue. If we are running TCQ on the device, QERR is set to 1, |
5873 | * which means all outstanding ops have been dropped on the floor. |
5874 | * Cancel all will return them to us. |
5875 | * |
5876 | * Return value: |
5877 | * nothing |
5878 | **/ |
5879 | static void ipr_erp_cancel_all(struct ipr_cmnd *ipr_cmd) |
5880 | { |
5881 | struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd; |
5882 | struct ipr_resource_entry *res = scsi_cmd->device->hostdata; |
5883 | struct ipr_cmd_pkt *cmd_pkt; |
5884 | |
5885 | res->in_erp = 1; |
5886 | |
5887 | ipr_reinit_ipr_cmnd_for_erp(ipr_cmd); |
5888 | |
5889 | if (!scsi_cmd->device->simple_tags) { |
5890 | __ipr_erp_request_sense(ipr_cmd); |
5891 | return; |
5892 | } |
5893 | |
5894 | cmd_pkt = &ipr_cmd->ioarcb.cmd_pkt; |
5895 | cmd_pkt->request_type = IPR_RQTYPE_IOACMD; |
5896 | cmd_pkt->cdb[0] = IPR_CANCEL_ALL_REQUESTS; |
5897 | |
5898 | ipr_do_req(ipr_cmd, done: ipr_erp_request_sense, timeout_func: ipr_timeout, |
5899 | IPR_CANCEL_ALL_TIMEOUT); |
5900 | } |
5901 | |
5902 | /** |
5903 | * ipr_dump_ioasa - Dump contents of IOASA |
5904 | * @ioa_cfg: ioa config struct |
5905 | * @ipr_cmd: ipr command struct |
5906 | * @res: resource entry struct |
5907 | * |
5908 | * This function is invoked by the interrupt handler when ops |
5909 | * fail. It will log the IOASA if appropriate. Only called |
5910 | * for GPDD ops. |
5911 | * |
5912 | * Return value: |
5913 | * none |
5914 | **/ |
5915 | static void ipr_dump_ioasa(struct ipr_ioa_cfg *ioa_cfg, |
5916 | struct ipr_cmnd *ipr_cmd, struct ipr_resource_entry *res) |
5917 | { |
5918 | int i; |
5919 | u16 data_len; |
5920 | u32 ioasc, fd_ioasc; |
5921 | struct ipr_ioasa *ioasa = &ipr_cmd->s.ioasa; |
5922 | __be32 *ioasa_data = (__be32 *)ioasa; |
5923 | int error_index; |
5924 | |
5925 | ioasc = be32_to_cpu(ioasa->hdr.ioasc) & IPR_IOASC_IOASC_MASK; |
5926 | fd_ioasc = be32_to_cpu(ioasa->hdr.fd_ioasc) & IPR_IOASC_IOASC_MASK; |
5927 | |
5928 | if (0 == ioasc) |
5929 | return; |
5930 | |
5931 | if (ioa_cfg->log_level < IPR_DEFAULT_LOG_LEVEL) |
5932 | return; |
5933 | |
5934 | if (ioasc == IPR_IOASC_BUS_WAS_RESET && fd_ioasc) |
5935 | error_index = ipr_get_error(ioasc: fd_ioasc); |
5936 | else |
5937 | error_index = ipr_get_error(ioasc); |
5938 | |
5939 | if (ioa_cfg->log_level < IPR_MAX_LOG_LEVEL) { |
5940 | /* Don't log an error if the IOA already logged one */ |
5941 | if (ioasa->hdr.ilid != 0) |
5942 | return; |
5943 | |
5944 | if (!ipr_is_gscsi(res)) |
5945 | return; |
5946 | |
5947 | if (ipr_error_table[error_index].log_ioasa == 0) |
5948 | return; |
5949 | } |
5950 | |
5951 | ipr_res_err(ioa_cfg, res, "%s\n" , ipr_error_table[error_index].error); |
5952 | |
5953 | data_len = be16_to_cpu(ioasa->hdr.ret_stat_len); |
5954 | if (ioa_cfg->sis64 && sizeof(struct ipr_ioasa64) < data_len) |
5955 | data_len = sizeof(struct ipr_ioasa64); |
5956 | else if (!ioa_cfg->sis64 && sizeof(struct ipr_ioasa) < data_len) |
5957 | data_len = sizeof(struct ipr_ioasa); |
5958 | |
5959 | ipr_err("IOASA Dump:\n" ); |
5960 | |
5961 | for (i = 0; i < data_len / 4; i += 4) { |
5962 | ipr_err("%08X: %08X %08X %08X %08X\n" , i*4, |
5963 | be32_to_cpu(ioasa_data[i]), |
5964 | be32_to_cpu(ioasa_data[i+1]), |
5965 | be32_to_cpu(ioasa_data[i+2]), |
5966 | be32_to_cpu(ioasa_data[i+3])); |
5967 | } |
5968 | } |
5969 | |
5970 | /** |
5971 | * ipr_gen_sense - Generate SCSI sense data from an IOASA |
5972 | * @ipr_cmd: ipr command struct |
5973 | * |
5974 | * Return value: |
5975 | * none |
5976 | **/ |
5977 | static void ipr_gen_sense(struct ipr_cmnd *ipr_cmd) |
5978 | { |
5979 | u32 failing_lba; |
5980 | u8 *sense_buf = ipr_cmd->scsi_cmd->sense_buffer; |
5981 | struct ipr_resource_entry *res = ipr_cmd->scsi_cmd->device->hostdata; |
5982 | struct ipr_ioasa *ioasa = &ipr_cmd->s.ioasa; |
5983 | u32 ioasc = be32_to_cpu(ioasa->hdr.ioasc); |
5984 | |
5985 | memset(sense_buf, 0, SCSI_SENSE_BUFFERSIZE); |
5986 | |
5987 | if (ioasc >= IPR_FIRST_DRIVER_IOASC) |
5988 | return; |
5989 | |
5990 | ipr_cmd->scsi_cmd->result = SAM_STAT_CHECK_CONDITION; |
5991 | |
5992 | if (ipr_is_vset_device(res) && |
5993 | ioasc == IPR_IOASC_MED_DO_NOT_REALLOC && |
5994 | ioasa->u.vset.failing_lba_hi != 0) { |
5995 | sense_buf[0] = 0x72; |
5996 | sense_buf[1] = IPR_IOASC_SENSE_KEY(ioasc); |
5997 | sense_buf[2] = IPR_IOASC_SENSE_CODE(ioasc); |
5998 | sense_buf[3] = IPR_IOASC_SENSE_QUAL(ioasc); |
5999 | |
6000 | sense_buf[7] = 12; |
6001 | sense_buf[8] = 0; |
6002 | sense_buf[9] = 0x0A; |
6003 | sense_buf[10] = 0x80; |
6004 | |
6005 | failing_lba = be32_to_cpu(ioasa->u.vset.failing_lba_hi); |
6006 | |
6007 | sense_buf[12] = (failing_lba & 0xff000000) >> 24; |
6008 | sense_buf[13] = (failing_lba & 0x00ff0000) >> 16; |
6009 | sense_buf[14] = (failing_lba & 0x0000ff00) >> 8; |
6010 | sense_buf[15] = failing_lba & 0x000000ff; |
6011 | |
6012 | failing_lba = be32_to_cpu(ioasa->u.vset.failing_lba_lo); |
6013 | |
6014 | sense_buf[16] = (failing_lba & 0xff000000) >> 24; |
6015 | sense_buf[17] = (failing_lba & 0x00ff0000) >> 16; |
6016 | sense_buf[18] = (failing_lba & 0x0000ff00) >> 8; |
6017 | sense_buf[19] = failing_lba & 0x000000ff; |
6018 | } else { |
6019 | sense_buf[0] = 0x70; |
6020 | sense_buf[2] = IPR_IOASC_SENSE_KEY(ioasc); |
6021 | sense_buf[12] = IPR_IOASC_SENSE_CODE(ioasc); |
6022 | sense_buf[13] = IPR_IOASC_SENSE_QUAL(ioasc); |
6023 | |
6024 | /* Illegal request */ |
6025 | if ((IPR_IOASC_SENSE_KEY(ioasc) == 0x05) && |
6026 | (be32_to_cpu(ioasa->hdr.ioasc_specific) & IPR_FIELD_POINTER_VALID)) { |
6027 | sense_buf[7] = 10; /* additional length */ |
6028 | |
6029 | /* IOARCB was in error */ |
6030 | if (IPR_IOASC_SENSE_CODE(ioasc) == 0x24) |
6031 | sense_buf[15] = 0xC0; |
6032 | else /* Parameter data was invalid */ |
6033 | sense_buf[15] = 0x80; |
6034 | |
6035 | sense_buf[16] = |
6036 | ((IPR_FIELD_POINTER_MASK & |
6037 | be32_to_cpu(ioasa->hdr.ioasc_specific)) >> 8) & 0xff; |
6038 | sense_buf[17] = |
6039 | (IPR_FIELD_POINTER_MASK & |
6040 | be32_to_cpu(ioasa->hdr.ioasc_specific)) & 0xff; |
6041 | } else { |
6042 | if (ioasc == IPR_IOASC_MED_DO_NOT_REALLOC) { |
6043 | if (ipr_is_vset_device(res)) |
6044 | failing_lba = be32_to_cpu(ioasa->u.vset.failing_lba_lo); |
6045 | else |
6046 | failing_lba = be32_to_cpu(ioasa->u.dasd.failing_lba); |
6047 | |
6048 | sense_buf[0] |= 0x80; /* Or in the Valid bit */ |
6049 | sense_buf[3] = (failing_lba & 0xff000000) >> 24; |
6050 | sense_buf[4] = (failing_lba & 0x00ff0000) >> 16; |
6051 | sense_buf[5] = (failing_lba & 0x0000ff00) >> 8; |
6052 | sense_buf[6] = failing_lba & 0x000000ff; |
6053 | } |
6054 | |
6055 | sense_buf[7] = 6; /* additional length */ |
6056 | } |
6057 | } |
6058 | } |
6059 | |
6060 | /** |
6061 | * ipr_get_autosense - Copy autosense data to sense buffer |
6062 | * @ipr_cmd: ipr command struct |
6063 | * |
6064 | * This function copies the autosense buffer to the buffer |
6065 | * in the scsi_cmd, if there is autosense available. |
6066 | * |
6067 | * Return value: |
6068 | * 1 if autosense was available / 0 if not |
6069 | **/ |
6070 | static int ipr_get_autosense(struct ipr_cmnd *ipr_cmd) |
6071 | { |
6072 | struct ipr_ioasa *ioasa = &ipr_cmd->s.ioasa; |
6073 | struct ipr_ioasa64 *ioasa64 = &ipr_cmd->s.ioasa64; |
6074 | |
6075 | if ((be32_to_cpu(ioasa->hdr.ioasc_specific) & IPR_AUTOSENSE_VALID) == 0) |
6076 | return 0; |
6077 | |
6078 | if (ipr_cmd->ioa_cfg->sis64) |
6079 | memcpy(ipr_cmd->scsi_cmd->sense_buffer, ioasa64->auto_sense.data, |
6080 | min_t(u16, be16_to_cpu(ioasa64->auto_sense.auto_sense_len), |
6081 | SCSI_SENSE_BUFFERSIZE)); |
6082 | else |
6083 | memcpy(ipr_cmd->scsi_cmd->sense_buffer, ioasa->auto_sense.data, |
6084 | min_t(u16, be16_to_cpu(ioasa->auto_sense.auto_sense_len), |
6085 | SCSI_SENSE_BUFFERSIZE)); |
6086 | return 1; |
6087 | } |
6088 | |
6089 | /** |
6090 | * ipr_erp_start - Process an error response for a SCSI op |
6091 | * @ioa_cfg: ioa config struct |
6092 | * @ipr_cmd: ipr command struct |
6093 | * |
6094 | * This function determines whether or not to initiate ERP |
6095 | * on the affected device. |
6096 | * |
6097 | * Return value: |
6098 | * nothing |
6099 | **/ |
6100 | static void ipr_erp_start(struct ipr_ioa_cfg *ioa_cfg, |
6101 | struct ipr_cmnd *ipr_cmd) |
6102 | { |
6103 | struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd; |
6104 | struct ipr_resource_entry *res = scsi_cmd->device->hostdata; |
6105 | u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc); |
6106 | u32 masked_ioasc = ioasc & IPR_IOASC_IOASC_MASK; |
6107 | |
6108 | if (!res) { |
6109 | __ipr_scsi_eh_done(ipr_cmd); |
6110 | return; |
6111 | } |
6112 | |
6113 | if (!ipr_is_gscsi(res) && masked_ioasc != IPR_IOASC_HW_DEV_BUS_STATUS) |
6114 | ipr_gen_sense(ipr_cmd); |
6115 | |
6116 | ipr_dump_ioasa(ioa_cfg, ipr_cmd, res); |
6117 | |
6118 | switch (masked_ioasc) { |
6119 | case IPR_IOASC_ABORTED_CMD_TERM_BY_HOST: |
6120 | if (ipr_is_naca_model(res)) |
6121 | scsi_cmd->result |= (DID_ABORT << 16); |
6122 | else |
6123 | scsi_cmd->result |= (DID_IMM_RETRY << 16); |
6124 | break; |
6125 | case IPR_IOASC_IR_RESOURCE_HANDLE: |
6126 | case IPR_IOASC_IR_NO_CMDS_TO_2ND_IOA: |
6127 | scsi_cmd->result |= (DID_NO_CONNECT << 16); |
6128 | break; |
6129 | case IPR_IOASC_HW_SEL_TIMEOUT: |
6130 | scsi_cmd->result |= (DID_NO_CONNECT << 16); |
6131 | if (!ipr_is_naca_model(res)) |
6132 | res->needs_sync_complete = 1; |
6133 | break; |
6134 | case IPR_IOASC_SYNC_REQUIRED: |
6135 | if (!res->in_erp) |
6136 | res->needs_sync_complete = 1; |
6137 | scsi_cmd->result |= (DID_IMM_RETRY << 16); |
6138 | break; |
6139 | case IPR_IOASC_MED_DO_NOT_REALLOC: /* prevent retries */ |
6140 | case IPR_IOASA_IR_DUAL_IOA_DISABLED: |
6141 | /* |
6142 | * exception: do not set DID_PASSTHROUGH on CHECK CONDITION |
6143 | * so SCSI mid-layer and upper layers handle it accordingly. |
6144 | */ |
6145 | if (scsi_cmd->result != SAM_STAT_CHECK_CONDITION) |
6146 | scsi_cmd->result |= (DID_PASSTHROUGH << 16); |
6147 | break; |
6148 | case IPR_IOASC_BUS_WAS_RESET: |
6149 | case IPR_IOASC_BUS_WAS_RESET_BY_OTHER: |
6150 | /* |
6151 | * Report the bus reset and ask for a retry. The device |
6152 | * will give CC/UA the next command. |
6153 | */ |
6154 | if (!res->resetting_device) |
6155 | scsi_report_bus_reset(ioa_cfg->host, scsi_cmd->device->channel); |
6156 | scsi_cmd->result |= (DID_ERROR << 16); |
6157 | if (!ipr_is_naca_model(res)) |
6158 | res->needs_sync_complete = 1; |
6159 | break; |
6160 | case IPR_IOASC_HW_DEV_BUS_STATUS: |
6161 | scsi_cmd->result |= IPR_IOASC_SENSE_STATUS(ioasc); |
6162 | if (IPR_IOASC_SENSE_STATUS(ioasc) == SAM_STAT_CHECK_CONDITION) { |
6163 | if (!ipr_get_autosense(ipr_cmd)) { |
6164 | if (!ipr_is_naca_model(res)) { |
6165 | ipr_erp_cancel_all(ipr_cmd); |
6166 | return; |
6167 | } |
6168 | } |
6169 | } |
6170 | if (!ipr_is_naca_model(res)) |
6171 | res->needs_sync_complete = 1; |
6172 | break; |
6173 | case IPR_IOASC_NR_INIT_CMD_REQUIRED: |
6174 | break; |
6175 | case IPR_IOASC_IR_NON_OPTIMIZED: |
6176 | if (res->raw_mode) { |
6177 | res->raw_mode = 0; |
6178 | scsi_cmd->result |= (DID_IMM_RETRY << 16); |
6179 | } else |
6180 | scsi_cmd->result |= (DID_ERROR << 16); |
6181 | break; |
6182 | default: |
6183 | if (IPR_IOASC_SENSE_KEY(ioasc) > RECOVERED_ERROR) |
6184 | scsi_cmd->result |= (DID_ERROR << 16); |
6185 | if (!ipr_is_vset_device(res) && !ipr_is_naca_model(res)) |
6186 | res->needs_sync_complete = 1; |
6187 | break; |
6188 | } |
6189 | |
6190 | scsi_dma_unmap(cmd: ipr_cmd->scsi_cmd); |
6191 | scsi_done(cmd: scsi_cmd); |
6192 | if (ipr_cmd->eh_comp) |
6193 | complete(ipr_cmd->eh_comp); |
6194 | list_add_tail(new: &ipr_cmd->queue, head: &ipr_cmd->hrrq->hrrq_free_q); |
6195 | } |
6196 | |
6197 | /** |
6198 | * ipr_scsi_done - mid-layer done function |
6199 | * @ipr_cmd: ipr command struct |
6200 | * |
6201 | * This function is invoked by the interrupt handler for |
6202 | * ops generated by the SCSI mid-layer |
6203 | * |
6204 | * Return value: |
6205 | * none |
6206 | **/ |
6207 | static void ipr_scsi_done(struct ipr_cmnd *ipr_cmd) |
6208 | { |
6209 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; |
6210 | struct scsi_cmnd *scsi_cmd = ipr_cmd->scsi_cmd; |
6211 | u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc); |
6212 | unsigned long lock_flags; |
6213 | |
6214 | scsi_set_resid(cmd: scsi_cmd, be32_to_cpu(ipr_cmd->s.ioasa.hdr.residual_data_len)); |
6215 | |
6216 | if (likely(IPR_IOASC_SENSE_KEY(ioasc) == 0)) { |
6217 | scsi_dma_unmap(cmd: scsi_cmd); |
6218 | |
6219 | spin_lock_irqsave(ipr_cmd->hrrq->lock, lock_flags); |
6220 | scsi_done(cmd: scsi_cmd); |
6221 | if (ipr_cmd->eh_comp) |
6222 | complete(ipr_cmd->eh_comp); |
6223 | list_add_tail(new: &ipr_cmd->queue, head: &ipr_cmd->hrrq->hrrq_free_q); |
6224 | spin_unlock_irqrestore(lock: ipr_cmd->hrrq->lock, flags: lock_flags); |
6225 | } else { |
6226 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); |
6227 | spin_lock(lock: &ipr_cmd->hrrq->_lock); |
6228 | ipr_erp_start(ioa_cfg, ipr_cmd); |
6229 | spin_unlock(lock: &ipr_cmd->hrrq->_lock); |
6230 | spin_unlock_irqrestore(lock: ioa_cfg->host->host_lock, flags: lock_flags); |
6231 | } |
6232 | } |
6233 | |
6234 | /** |
6235 | * ipr_queuecommand - Queue a mid-layer request |
6236 | * @shost: scsi host struct |
6237 | * @scsi_cmd: scsi command struct |
6238 | * |
6239 | * This function queues a request generated by the mid-layer. |
6240 | * |
6241 | * Return value: |
6242 | * 0 on success |
6243 | * SCSI_MLQUEUE_DEVICE_BUSY if device is busy |
6244 | * SCSI_MLQUEUE_HOST_BUSY if host is busy |
6245 | **/ |
6246 | static int ipr_queuecommand(struct Scsi_Host *shost, |
6247 | struct scsi_cmnd *scsi_cmd) |
6248 | { |
6249 | struct ipr_ioa_cfg *ioa_cfg; |
6250 | struct ipr_resource_entry *res; |
6251 | struct ipr_ioarcb *ioarcb; |
6252 | struct ipr_cmnd *ipr_cmd; |
6253 | unsigned long hrrq_flags; |
6254 | int rc; |
6255 | struct ipr_hrr_queue *hrrq; |
6256 | int hrrq_id; |
6257 | |
6258 | ioa_cfg = (struct ipr_ioa_cfg *)shost->hostdata; |
6259 | |
6260 | scsi_cmd->result = (DID_OK << 16); |
6261 | res = scsi_cmd->device->hostdata; |
6262 | |
6263 | hrrq_id = ipr_get_hrrq_index(ioa_cfg); |
6264 | hrrq = &ioa_cfg->hrrq[hrrq_id]; |
6265 | |
6266 | spin_lock_irqsave(hrrq->lock, hrrq_flags); |
6267 | /* |
6268 | * We are currently blocking all devices due to a host reset |
6269 | * We have told the host to stop giving us new requests, but |
6270 | * ERP ops don't count. FIXME |
6271 | */ |
6272 | if (unlikely(!hrrq->allow_cmds && !hrrq->ioa_is_dead && !hrrq->removing_ioa)) { |
6273 | spin_unlock_irqrestore(lock: hrrq->lock, flags: hrrq_flags); |
6274 | return SCSI_MLQUEUE_HOST_BUSY; |
6275 | } |
6276 | |
6277 | /* |
6278 | * FIXME - Create scsi_set_host_offline interface |
6279 | * and the ioa_is_dead check can be removed |
6280 | */ |
6281 | if (unlikely(hrrq->ioa_is_dead || hrrq->removing_ioa || !res)) { |
6282 | spin_unlock_irqrestore(lock: hrrq->lock, flags: hrrq_flags); |
6283 | goto err_nodev; |
6284 | } |
6285 | |
6286 | ipr_cmd = __ipr_get_free_ipr_cmnd(hrrq); |
6287 | if (ipr_cmd == NULL) { |
6288 | spin_unlock_irqrestore(lock: hrrq->lock, flags: hrrq_flags); |
6289 | return SCSI_MLQUEUE_HOST_BUSY; |
6290 | } |
6291 | spin_unlock_irqrestore(lock: hrrq->lock, flags: hrrq_flags); |
6292 | |
6293 | ipr_init_ipr_cmnd(ipr_cmd, fast_done: ipr_scsi_done); |
6294 | ioarcb = &ipr_cmd->ioarcb; |
6295 | |
6296 | memcpy(ioarcb->cmd_pkt.cdb, scsi_cmd->cmnd, scsi_cmd->cmd_len); |
6297 | ipr_cmd->scsi_cmd = scsi_cmd; |
6298 | ipr_cmd->done = ipr_scsi_eh_done; |
6299 | |
6300 | if (ipr_is_gscsi(res)) { |
6301 | if (scsi_cmd->underflow == 0) |
6302 | ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_NO_ULEN_CHK; |
6303 | |
6304 | if (res->reset_occurred) { |
6305 | res->reset_occurred = 0; |
6306 | ioarcb->cmd_pkt.flags_lo |= IPR_FLAGS_LO_DELAY_AFTER_RST; |
6307 | } |
6308 | } |
6309 | |
6310 | if (ipr_is_gscsi(res) || ipr_is_vset_device(res)) { |
6311 | ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_NO_LINK_DESC; |
6312 | |
6313 | ioarcb->cmd_pkt.flags_lo |= IPR_FLAGS_LO_ALIGNED_BFR; |
6314 | if (scsi_cmd->flags & SCMD_TAGGED) |
6315 | ioarcb->cmd_pkt.flags_lo |= IPR_FLAGS_LO_SIMPLE_TASK; |
6316 | else |
6317 | ioarcb->cmd_pkt.flags_lo |= IPR_FLAGS_LO_UNTAGGED_TASK; |
6318 | } |
6319 | |
6320 | if (scsi_cmd->cmnd[0] >= 0xC0 && |
6321 | (!ipr_is_gscsi(res) || scsi_cmd->cmnd[0] == IPR_QUERY_RSRC_STATE)) { |
6322 | ioarcb->cmd_pkt.request_type = IPR_RQTYPE_IOACMD; |
6323 | } |
6324 | if (res->raw_mode && ipr_is_af_dasd_device(res)) { |
6325 | ioarcb->cmd_pkt.request_type = IPR_RQTYPE_PIPE; |
6326 | |
6327 | if (scsi_cmd->underflow == 0) |
6328 | ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_NO_ULEN_CHK; |
6329 | } |
6330 | |
6331 | if (ioa_cfg->sis64) |
6332 | rc = ipr_build_ioadl64(ioa_cfg, ipr_cmd); |
6333 | else |
6334 | rc = ipr_build_ioadl(ioa_cfg, ipr_cmd); |
6335 | |
6336 | spin_lock_irqsave(hrrq->lock, hrrq_flags); |
6337 | if (unlikely(rc || (!hrrq->allow_cmds && !hrrq->ioa_is_dead))) { |
6338 | list_add_tail(new: &ipr_cmd->queue, head: &hrrq->hrrq_free_q); |
6339 | spin_unlock_irqrestore(lock: hrrq->lock, flags: hrrq_flags); |
6340 | if (!rc) |
6341 | scsi_dma_unmap(cmd: scsi_cmd); |
6342 | return SCSI_MLQUEUE_HOST_BUSY; |
6343 | } |
6344 | |
6345 | if (unlikely(hrrq->ioa_is_dead)) { |
6346 | list_add_tail(new: &ipr_cmd->queue, head: &hrrq->hrrq_free_q); |
6347 | spin_unlock_irqrestore(lock: hrrq->lock, flags: hrrq_flags); |
6348 | scsi_dma_unmap(cmd: scsi_cmd); |
6349 | goto err_nodev; |
6350 | } |
6351 | |
6352 | ioarcb->res_handle = res->res_handle; |
6353 | if (res->needs_sync_complete) { |
6354 | ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_SYNC_COMPLETE; |
6355 | res->needs_sync_complete = 0; |
6356 | } |
6357 | list_add_tail(new: &ipr_cmd->queue, head: &hrrq->hrrq_pending_q); |
6358 | ipr_trc_hook(ipr_cmd, IPR_TRACE_START, IPR_GET_RES_PHYS_LOC(res)); |
6359 | ipr_send_command(ipr_cmd); |
6360 | spin_unlock_irqrestore(lock: hrrq->lock, flags: hrrq_flags); |
6361 | return 0; |
6362 | |
6363 | err_nodev: |
6364 | spin_lock_irqsave(hrrq->lock, hrrq_flags); |
6365 | memset(scsi_cmd->sense_buffer, 0, SCSI_SENSE_BUFFERSIZE); |
6366 | scsi_cmd->result = (DID_NO_CONNECT << 16); |
6367 | scsi_done(cmd: scsi_cmd); |
6368 | spin_unlock_irqrestore(lock: hrrq->lock, flags: hrrq_flags); |
6369 | return 0; |
6370 | } |
6371 | |
6372 | /** |
6373 | * ipr_ioa_info - Get information about the card/driver |
6374 | * @host: scsi host struct |
6375 | * |
6376 | * Return value: |
6377 | * pointer to buffer with description string |
6378 | **/ |
6379 | static const char *ipr_ioa_info(struct Scsi_Host *host) |
6380 | { |
6381 | static char buffer[512]; |
6382 | struct ipr_ioa_cfg *ioa_cfg; |
6383 | unsigned long lock_flags = 0; |
6384 | |
6385 | ioa_cfg = (struct ipr_ioa_cfg *) host->hostdata; |
6386 | |
6387 | spin_lock_irqsave(host->host_lock, lock_flags); |
6388 | sprintf(buf: buffer, fmt: "IBM %X Storage Adapter" , ioa_cfg->type); |
6389 | spin_unlock_irqrestore(lock: host->host_lock, flags: lock_flags); |
6390 | |
6391 | return buffer; |
6392 | } |
6393 | |
6394 | static const struct scsi_host_template driver_template = { |
6395 | .module = THIS_MODULE, |
6396 | .name = "IPR" , |
6397 | .info = ipr_ioa_info, |
6398 | .queuecommand = ipr_queuecommand, |
6399 | .eh_abort_handler = ipr_eh_abort, |
6400 | .eh_device_reset_handler = ipr_eh_dev_reset, |
6401 | .eh_host_reset_handler = ipr_eh_host_reset, |
6402 | .slave_alloc = ipr_slave_alloc, |
6403 | .slave_configure = ipr_slave_configure, |
6404 | .slave_destroy = ipr_slave_destroy, |
6405 | .scan_finished = ipr_scan_finished, |
6406 | .target_destroy = ipr_target_destroy, |
6407 | .change_queue_depth = ipr_change_queue_depth, |
6408 | .bios_param = ipr_biosparam, |
6409 | .can_queue = IPR_MAX_COMMANDS, |
6410 | .this_id = -1, |
6411 | .sg_tablesize = IPR_MAX_SGLIST, |
6412 | .max_sectors = IPR_IOA_MAX_SECTORS, |
6413 | .cmd_per_lun = IPR_MAX_CMD_PER_LUN, |
6414 | .shost_groups = ipr_ioa_groups, |
6415 | .sdev_groups = ipr_dev_groups, |
6416 | .proc_name = IPR_NAME, |
6417 | }; |
6418 | |
6419 | #ifdef CONFIG_PPC_PSERIES |
6420 | static const u16 ipr_blocked_processors[] = { |
6421 | PVR_NORTHSTAR, |
6422 | PVR_PULSAR, |
6423 | PVR_POWER4, |
6424 | PVR_ICESTAR, |
6425 | PVR_SSTAR, |
6426 | PVR_POWER4p, |
6427 | PVR_630, |
6428 | PVR_630p |
6429 | }; |
6430 | |
6431 | /** |
6432 | * ipr_invalid_adapter - Determine if this adapter is supported on this hardware |
6433 | * @ioa_cfg: ioa cfg struct |
6434 | * |
6435 | * Adapters that use Gemstone revision < 3.1 do not work reliably on |
6436 | * certain pSeries hardware. This function determines if the given |
6437 | * adapter is in one of these confgurations or not. |
6438 | * |
6439 | * Return value: |
6440 | * 1 if adapter is not supported / 0 if adapter is supported |
6441 | **/ |
6442 | static int ipr_invalid_adapter(struct ipr_ioa_cfg *ioa_cfg) |
6443 | { |
6444 | int i; |
6445 | |
6446 | if ((ioa_cfg->type == 0x5702) && (ioa_cfg->pdev->revision < 4)) { |
6447 | for (i = 0; i < ARRAY_SIZE(ipr_blocked_processors); i++) { |
6448 | if (pvr_version_is(ipr_blocked_processors[i])) |
6449 | return 1; |
6450 | } |
6451 | } |
6452 | return 0; |
6453 | } |
6454 | #else |
6455 | #define ipr_invalid_adapter(ioa_cfg) 0 |
6456 | #endif |
6457 | |
6458 | /** |
6459 | * ipr_ioa_bringdown_done - IOA bring down completion. |
6460 | * @ipr_cmd: ipr command struct |
6461 | * |
6462 | * This function processes the completion of an adapter bring down. |
6463 | * It wakes any reset sleepers. |
6464 | * |
6465 | * Return value: |
6466 | * IPR_RC_JOB_RETURN |
6467 | **/ |
6468 | static int ipr_ioa_bringdown_done(struct ipr_cmnd *ipr_cmd) |
6469 | { |
6470 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; |
6471 | int i; |
6472 | |
6473 | ENTER; |
6474 | if (!ioa_cfg->hrrq[IPR_INIT_HRRQ].removing_ioa) { |
6475 | ipr_trace; |
6476 | ioa_cfg->scsi_unblock = 1; |
6477 | schedule_work(work: &ioa_cfg->work_q); |
6478 | } |
6479 | |
6480 | ioa_cfg->in_reset_reload = 0; |
6481 | ioa_cfg->reset_retries = 0; |
6482 | for (i = 0; i < ioa_cfg->hrrq_num; i++) { |
6483 | spin_lock(lock: &ioa_cfg->hrrq[i]._lock); |
6484 | ioa_cfg->hrrq[i].ioa_is_dead = 1; |
6485 | spin_unlock(lock: &ioa_cfg->hrrq[i]._lock); |
6486 | } |
6487 | wmb(); |
6488 | |
6489 | list_add_tail(new: &ipr_cmd->queue, head: &ipr_cmd->hrrq->hrrq_free_q); |
6490 | wake_up_all(&ioa_cfg->reset_wait_q); |
6491 | LEAVE; |
6492 | |
6493 | return IPR_RC_JOB_RETURN; |
6494 | } |
6495 | |
6496 | /** |
6497 | * ipr_ioa_reset_done - IOA reset completion. |
6498 | * @ipr_cmd: ipr command struct |
6499 | * |
6500 | * This function processes the completion of an adapter reset. |
6501 | * It schedules any necessary mid-layer add/removes and |
6502 | * wakes any reset sleepers. |
6503 | * |
6504 | * Return value: |
6505 | * IPR_RC_JOB_RETURN |
6506 | **/ |
6507 | static int ipr_ioa_reset_done(struct ipr_cmnd *ipr_cmd) |
6508 | { |
6509 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; |
6510 | struct ipr_resource_entry *res; |
6511 | int j; |
6512 | |
6513 | ENTER; |
6514 | ioa_cfg->in_reset_reload = 0; |
6515 | for (j = 0; j < ioa_cfg->hrrq_num; j++) { |
6516 | spin_lock(lock: &ioa_cfg->hrrq[j]._lock); |
6517 | ioa_cfg->hrrq[j].allow_cmds = 1; |
6518 | spin_unlock(lock: &ioa_cfg->hrrq[j]._lock); |
6519 | } |
6520 | wmb(); |
6521 | ioa_cfg->reset_cmd = NULL; |
6522 | ioa_cfg->doorbell |= IPR_RUNTIME_RESET; |
6523 | |
6524 | list_for_each_entry(res, &ioa_cfg->used_res_q, queue) { |
6525 | if (res->add_to_ml || res->del_from_ml) { |
6526 | ipr_trace; |
6527 | break; |
6528 | } |
6529 | } |
6530 | schedule_work(work: &ioa_cfg->work_q); |
6531 | |
6532 | for (j = 0; j < IPR_NUM_HCAMS; j++) { |
6533 | list_del_init(entry: &ioa_cfg->hostrcb[j]->queue); |
6534 | if (j < IPR_NUM_LOG_HCAMS) |
6535 | ipr_send_hcam(ioa_cfg, |
6536 | IPR_HCAM_CDB_OP_CODE_LOG_DATA, |
6537 | hostrcb: ioa_cfg->hostrcb[j]); |
6538 | else |
6539 | ipr_send_hcam(ioa_cfg, |
6540 | IPR_HCAM_CDB_OP_CODE_CONFIG_CHANGE, |
6541 | hostrcb: ioa_cfg->hostrcb[j]); |
6542 | } |
6543 | |
6544 | scsi_report_bus_reset(ioa_cfg->host, IPR_VSET_BUS); |
6545 | dev_info(&ioa_cfg->pdev->dev, "IOA initialized.\n" ); |
6546 | |
6547 | ioa_cfg->reset_retries = 0; |
6548 | list_add_tail(new: &ipr_cmd->queue, head: &ipr_cmd->hrrq->hrrq_free_q); |
6549 | wake_up_all(&ioa_cfg->reset_wait_q); |
6550 | |
6551 | ioa_cfg->scsi_unblock = 1; |
6552 | schedule_work(work: &ioa_cfg->work_q); |
6553 | LEAVE; |
6554 | return IPR_RC_JOB_RETURN; |
6555 | } |
6556 | |
6557 | /** |
6558 | * ipr_set_sup_dev_dflt - Initialize a Set Supported Device buffer |
6559 | * @supported_dev: supported device struct |
6560 | * @vpids: vendor product id struct |
6561 | * |
6562 | * Return value: |
6563 | * none |
6564 | **/ |
6565 | static void ipr_set_sup_dev_dflt(struct ipr_supported_device *supported_dev, |
6566 | struct ipr_std_inq_vpids *vpids) |
6567 | { |
6568 | memset(supported_dev, 0, sizeof(struct ipr_supported_device)); |
6569 | memcpy(&supported_dev->vpids, vpids, sizeof(struct ipr_std_inq_vpids)); |
6570 | supported_dev->num_records = 1; |
6571 | supported_dev->data_length = |
6572 | cpu_to_be16(sizeof(struct ipr_supported_device)); |
6573 | supported_dev->reserved = 0; |
6574 | } |
6575 | |
6576 | /** |
6577 | * ipr_set_supported_devs - Send Set Supported Devices for a device |
6578 | * @ipr_cmd: ipr command struct |
6579 | * |
6580 | * This function sends a Set Supported Devices to the adapter |
6581 | * |
6582 | * Return value: |
6583 | * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN |
6584 | **/ |
6585 | static int ipr_set_supported_devs(struct ipr_cmnd *ipr_cmd) |
6586 | { |
6587 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; |
6588 | struct ipr_supported_device *supp_dev = &ioa_cfg->vpd_cbs->supp_dev; |
6589 | struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb; |
6590 | struct ipr_resource_entry *res = ipr_cmd->u.res; |
6591 | |
6592 | ipr_cmd->job_step = ipr_ioa_reset_done; |
6593 | |
6594 | list_for_each_entry_continue(res, &ioa_cfg->used_res_q, queue) { |
6595 | if (!ipr_is_scsi_disk(res)) |
6596 | continue; |
6597 | |
6598 | ipr_cmd->u.res = res; |
6599 | ipr_set_sup_dev_dflt(supported_dev: supp_dev, vpids: &res->std_inq_data.vpids); |
6600 | |
6601 | ioarcb->res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE); |
6602 | ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ; |
6603 | ioarcb->cmd_pkt.request_type = IPR_RQTYPE_IOACMD; |
6604 | |
6605 | ioarcb->cmd_pkt.cdb[0] = IPR_SET_SUPPORTED_DEVICES; |
6606 | ioarcb->cmd_pkt.cdb[1] = IPR_SET_ALL_SUPPORTED_DEVICES; |
6607 | ioarcb->cmd_pkt.cdb[7] = (sizeof(struct ipr_supported_device) >> 8) & 0xff; |
6608 | ioarcb->cmd_pkt.cdb[8] = sizeof(struct ipr_supported_device) & 0xff; |
6609 | |
6610 | ipr_init_ioadl(ipr_cmd, |
6611 | dma_addr: ioa_cfg->vpd_cbs_dma + |
6612 | offsetof(struct ipr_misc_cbs, supp_dev), |
6613 | len: sizeof(struct ipr_supported_device), |
6614 | IPR_IOADL_FLAGS_WRITE_LAST); |
6615 | |
6616 | ipr_do_req(ipr_cmd, done: ipr_reset_ioa_job, timeout_func: ipr_timeout, |
6617 | IPR_SET_SUP_DEVICE_TIMEOUT); |
6618 | |
6619 | if (!ioa_cfg->sis64) |
6620 | ipr_cmd->job_step = ipr_set_supported_devs; |
6621 | LEAVE; |
6622 | return IPR_RC_JOB_RETURN; |
6623 | } |
6624 | |
6625 | LEAVE; |
6626 | return IPR_RC_JOB_CONTINUE; |
6627 | } |
6628 | |
6629 | /** |
6630 | * ipr_get_mode_page - Locate specified mode page |
6631 | * @mode_pages: mode page buffer |
6632 | * @page_code: page code to find |
6633 | * @len: minimum required length for mode page |
6634 | * |
6635 | * Return value: |
6636 | * pointer to mode page / NULL on failure |
6637 | **/ |
6638 | static void *ipr_get_mode_page(struct ipr_mode_pages *mode_pages, |
6639 | u32 page_code, u32 len) |
6640 | { |
6641 | struct ipr_mode_page_hdr *mode_hdr; |
6642 | u32 page_length; |
6643 | u32 length; |
6644 | |
6645 | if (!mode_pages || (mode_pages->hdr.length == 0)) |
6646 | return NULL; |
6647 | |
6648 | length = (mode_pages->hdr.length + 1) - 4 - mode_pages->hdr.block_desc_len; |
6649 | mode_hdr = (struct ipr_mode_page_hdr *) |
6650 | (mode_pages->data + mode_pages->hdr.block_desc_len); |
6651 | |
6652 | while (length) { |
6653 | if (IPR_GET_MODE_PAGE_CODE(mode_hdr) == page_code) { |
6654 | if (mode_hdr->page_length >= (len - sizeof(struct ipr_mode_page_hdr))) |
6655 | return mode_hdr; |
6656 | break; |
6657 | } else { |
6658 | page_length = (sizeof(struct ipr_mode_page_hdr) + |
6659 | mode_hdr->page_length); |
6660 | length -= page_length; |
6661 | mode_hdr = (struct ipr_mode_page_hdr *) |
6662 | ((unsigned long)mode_hdr + page_length); |
6663 | } |
6664 | } |
6665 | return NULL; |
6666 | } |
6667 | |
6668 | /** |
6669 | * ipr_check_term_power - Check for term power errors |
6670 | * @ioa_cfg: ioa config struct |
6671 | * @mode_pages: IOAFP mode pages buffer |
6672 | * |
6673 | * Check the IOAFP's mode page 28 for term power errors |
6674 | * |
6675 | * Return value: |
6676 | * nothing |
6677 | **/ |
6678 | static void ipr_check_term_power(struct ipr_ioa_cfg *ioa_cfg, |
6679 | struct ipr_mode_pages *mode_pages) |
6680 | { |
6681 | int i; |
6682 | int entry_length; |
6683 | struct ipr_dev_bus_entry *bus; |
6684 | struct ipr_mode_page28 *mode_page; |
6685 | |
6686 | mode_page = ipr_get_mode_page(mode_pages, page_code: 0x28, |
6687 | len: sizeof(struct ipr_mode_page28)); |
6688 | |
6689 | entry_length = mode_page->entry_length; |
6690 | |
6691 | bus = mode_page->bus; |
6692 | |
6693 | for (i = 0; i < mode_page->num_entries; i++) { |
6694 | if (bus->flags & IPR_SCSI_ATTR_NO_TERM_PWR) { |
6695 | dev_err(&ioa_cfg->pdev->dev, |
6696 | "Term power is absent on scsi bus %d\n" , |
6697 | bus->res_addr.bus); |
6698 | } |
6699 | |
6700 | bus = (struct ipr_dev_bus_entry *)((char *)bus + entry_length); |
6701 | } |
6702 | } |
6703 | |
6704 | /** |
6705 | * ipr_scsi_bus_speed_limit - Limit the SCSI speed based on SES table |
6706 | * @ioa_cfg: ioa config struct |
6707 | * |
6708 | * Looks through the config table checking for SES devices. If |
6709 | * the SES device is in the SES table indicating a maximum SCSI |
6710 | * bus speed, the speed is limited for the bus. |
6711 | * |
6712 | * Return value: |
6713 | * none |
6714 | **/ |
6715 | static void ipr_scsi_bus_speed_limit(struct ipr_ioa_cfg *ioa_cfg) |
6716 | { |
6717 | u32 max_xfer_rate; |
6718 | int i; |
6719 | |
6720 | for (i = 0; i < IPR_MAX_NUM_BUSES; i++) { |
6721 | max_xfer_rate = ipr_get_max_scsi_speed(ioa_cfg, bus: i, |
6722 | bus_width: ioa_cfg->bus_attr[i].bus_width); |
6723 | |
6724 | if (max_xfer_rate < ioa_cfg->bus_attr[i].max_xfer_rate) |
6725 | ioa_cfg->bus_attr[i].max_xfer_rate = max_xfer_rate; |
6726 | } |
6727 | } |
6728 | |
6729 | /** |
6730 | * ipr_modify_ioafp_mode_page_28 - Modify IOAFP Mode Page 28 |
6731 | * @ioa_cfg: ioa config struct |
6732 | * @mode_pages: mode page 28 buffer |
6733 | * |
6734 | * Updates mode page 28 based on driver configuration |
6735 | * |
6736 | * Return value: |
6737 | * none |
6738 | **/ |
6739 | static void ipr_modify_ioafp_mode_page_28(struct ipr_ioa_cfg *ioa_cfg, |
6740 | struct ipr_mode_pages *mode_pages) |
6741 | { |
6742 | int i, entry_length; |
6743 | struct ipr_dev_bus_entry *bus; |
6744 | struct ipr_bus_attributes *bus_attr; |
6745 | struct ipr_mode_page28 *mode_page; |
6746 | |
6747 | mode_page = ipr_get_mode_page(mode_pages, page_code: 0x28, |
6748 | len: sizeof(struct ipr_mode_page28)); |
6749 | |
6750 | entry_length = mode_page->entry_length; |
6751 | |
6752 | /* Loop for each device bus entry */ |
6753 | for (i = 0, bus = mode_page->bus; |
6754 | i < mode_page->num_entries; |
6755 | i++, bus = (struct ipr_dev_bus_entry *)((u8 *)bus + entry_length)) { |
6756 | if (bus->res_addr.bus > IPR_MAX_NUM_BUSES) { |
6757 | dev_err(&ioa_cfg->pdev->dev, |
6758 | "Invalid resource address reported: 0x%08X\n" , |
6759 | IPR_GET_PHYS_LOC(bus->res_addr)); |
6760 | continue; |
6761 | } |
6762 | |
6763 | bus_attr = &ioa_cfg->bus_attr[i]; |
6764 | bus->extended_reset_delay = IPR_EXTENDED_RESET_DELAY; |
6765 | bus->bus_width = bus_attr->bus_width; |
6766 | bus->max_xfer_rate = cpu_to_be32(bus_attr->max_xfer_rate); |
6767 | bus->flags &= ~IPR_SCSI_ATTR_QAS_MASK; |
6768 | if (bus_attr->qas_enabled) |
6769 | bus->flags |= IPR_SCSI_ATTR_ENABLE_QAS; |
6770 | else |
6771 | bus->flags |= IPR_SCSI_ATTR_DISABLE_QAS; |
6772 | } |
6773 | } |
6774 | |
6775 | /** |
6776 | * ipr_build_mode_select - Build a mode select command |
6777 | * @ipr_cmd: ipr command struct |
6778 | * @res_handle: resource handle to send command to |
6779 | * @parm: Byte 2 of Mode Sense command |
6780 | * @dma_addr: DMA buffer address |
6781 | * @xfer_len: data transfer length |
6782 | * |
6783 | * Return value: |
6784 | * none |
6785 | **/ |
6786 | static void ipr_build_mode_select(struct ipr_cmnd *ipr_cmd, |
6787 | __be32 res_handle, u8 parm, |
6788 | dma_addr_t dma_addr, u8 xfer_len) |
6789 | { |
6790 | struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb; |
6791 | |
6792 | ioarcb->res_handle = res_handle; |
6793 | ioarcb->cmd_pkt.request_type = IPR_RQTYPE_SCSICDB; |
6794 | ioarcb->cmd_pkt.flags_hi |= IPR_FLAGS_HI_WRITE_NOT_READ; |
6795 | ioarcb->cmd_pkt.cdb[0] = MODE_SELECT; |
6796 | ioarcb->cmd_pkt.cdb[1] = parm; |
6797 | ioarcb->cmd_pkt.cdb[4] = xfer_len; |
6798 | |
6799 | ipr_init_ioadl(ipr_cmd, dma_addr, len: xfer_len, IPR_IOADL_FLAGS_WRITE_LAST); |
6800 | } |
6801 | |
6802 | /** |
6803 | * ipr_ioafp_mode_select_page28 - Issue Mode Select Page 28 to IOA |
6804 | * @ipr_cmd: ipr command struct |
6805 | * |
6806 | * This function sets up the SCSI bus attributes and sends |
6807 | * a Mode Select for Page 28 to activate them. |
6808 | * |
6809 | * Return value: |
6810 | * IPR_RC_JOB_RETURN |
6811 | **/ |
6812 | static int ipr_ioafp_mode_select_page28(struct ipr_cmnd *ipr_cmd) |
6813 | { |
6814 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; |
6815 | struct ipr_mode_pages *mode_pages = &ioa_cfg->vpd_cbs->mode_pages; |
6816 | int length; |
6817 | |
6818 | ENTER; |
6819 | ipr_scsi_bus_speed_limit(ioa_cfg); |
6820 | ipr_check_term_power(ioa_cfg, mode_pages); |
6821 | ipr_modify_ioafp_mode_page_28(ioa_cfg, mode_pages); |
6822 | length = mode_pages->hdr.length + 1; |
6823 | mode_pages->hdr.length = 0; |
6824 | |
6825 | ipr_build_mode_select(ipr_cmd, cpu_to_be32(IPR_IOA_RES_HANDLE), parm: 0x11, |
6826 | dma_addr: ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, mode_pages), |
6827 | xfer_len: length); |
6828 | |
6829 | ipr_cmd->job_step = ipr_set_supported_devs; |
6830 | ipr_cmd->u.res = list_entry(ioa_cfg->used_res_q.next, |
6831 | struct ipr_resource_entry, queue); |
6832 | ipr_do_req(ipr_cmd, done: ipr_reset_ioa_job, timeout_func: ipr_timeout, IPR_INTERNAL_TIMEOUT); |
6833 | |
6834 | LEAVE; |
6835 | return IPR_RC_JOB_RETURN; |
6836 | } |
6837 | |
6838 | /** |
6839 | * ipr_build_mode_sense - Builds a mode sense command |
6840 | * @ipr_cmd: ipr command struct |
6841 | * @res_handle: resource entry struct |
6842 | * @parm: Byte 2 of mode sense command |
6843 | * @dma_addr: DMA address of mode sense buffer |
6844 | * @xfer_len: Size of DMA buffer |
6845 | * |
6846 | * Return value: |
6847 | * none |
6848 | **/ |
6849 | static void ipr_build_mode_sense(struct ipr_cmnd *ipr_cmd, |
6850 | __be32 res_handle, |
6851 | u8 parm, dma_addr_t dma_addr, u8 xfer_len) |
6852 | { |
6853 | struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb; |
6854 | |
6855 | ioarcb->res_handle = res_handle; |
6856 | ioarcb->cmd_pkt.cdb[0] = MODE_SENSE; |
6857 | ioarcb->cmd_pkt.cdb[2] = parm; |
6858 | ioarcb->cmd_pkt.cdb[4] = xfer_len; |
6859 | ioarcb->cmd_pkt.request_type = IPR_RQTYPE_SCSICDB; |
6860 | |
6861 | ipr_init_ioadl(ipr_cmd, dma_addr, len: xfer_len, IPR_IOADL_FLAGS_READ_LAST); |
6862 | } |
6863 | |
6864 | /** |
6865 | * ipr_reset_cmd_failed - Handle failure of IOA reset command |
6866 | * @ipr_cmd: ipr command struct |
6867 | * |
6868 | * This function handles the failure of an IOA bringup command. |
6869 | * |
6870 | * Return value: |
6871 | * IPR_RC_JOB_RETURN |
6872 | **/ |
6873 | static int ipr_reset_cmd_failed(struct ipr_cmnd *ipr_cmd) |
6874 | { |
6875 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; |
6876 | u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc); |
6877 | |
6878 | dev_err(&ioa_cfg->pdev->dev, |
6879 | "0x%02X failed with IOASC: 0x%08X\n" , |
6880 | ipr_cmd->ioarcb.cmd_pkt.cdb[0], ioasc); |
6881 | |
6882 | ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE); |
6883 | list_add_tail(new: &ipr_cmd->queue, head: &ipr_cmd->hrrq->hrrq_free_q); |
6884 | return IPR_RC_JOB_RETURN; |
6885 | } |
6886 | |
6887 | /** |
6888 | * ipr_reset_mode_sense_failed - Handle failure of IOAFP mode sense |
6889 | * @ipr_cmd: ipr command struct |
6890 | * |
6891 | * This function handles the failure of a Mode Sense to the IOAFP. |
6892 | * Some adapters do not handle all mode pages. |
6893 | * |
6894 | * Return value: |
6895 | * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN |
6896 | **/ |
6897 | static int ipr_reset_mode_sense_failed(struct ipr_cmnd *ipr_cmd) |
6898 | { |
6899 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; |
6900 | u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc); |
6901 | |
6902 | if (ioasc == IPR_IOASC_IR_INVALID_REQ_TYPE_OR_PKT) { |
6903 | ipr_cmd->job_step = ipr_set_supported_devs; |
6904 | ipr_cmd->u.res = list_entry(ioa_cfg->used_res_q.next, |
6905 | struct ipr_resource_entry, queue); |
6906 | return IPR_RC_JOB_CONTINUE; |
6907 | } |
6908 | |
6909 | return ipr_reset_cmd_failed(ipr_cmd); |
6910 | } |
6911 | |
6912 | /** |
6913 | * ipr_ioafp_mode_sense_page28 - Issue Mode Sense Page 28 to IOA |
6914 | * @ipr_cmd: ipr command struct |
6915 | * |
6916 | * This function send a Page 28 mode sense to the IOA to |
6917 | * retrieve SCSI bus attributes. |
6918 | * |
6919 | * Return value: |
6920 | * IPR_RC_JOB_RETURN |
6921 | **/ |
6922 | static int ipr_ioafp_mode_sense_page28(struct ipr_cmnd *ipr_cmd) |
6923 | { |
6924 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; |
6925 | |
6926 | ENTER; |
6927 | ipr_build_mode_sense(ipr_cmd, cpu_to_be32(IPR_IOA_RES_HANDLE), |
6928 | parm: 0x28, dma_addr: ioa_cfg->vpd_cbs_dma + |
6929 | offsetof(struct ipr_misc_cbs, mode_pages), |
6930 | xfer_len: sizeof(struct ipr_mode_pages)); |
6931 | |
6932 | ipr_cmd->job_step = ipr_ioafp_mode_select_page28; |
6933 | ipr_cmd->job_step_failed = ipr_reset_mode_sense_failed; |
6934 | |
6935 | ipr_do_req(ipr_cmd, done: ipr_reset_ioa_job, timeout_func: ipr_timeout, IPR_INTERNAL_TIMEOUT); |
6936 | |
6937 | LEAVE; |
6938 | return IPR_RC_JOB_RETURN; |
6939 | } |
6940 | |
6941 | /** |
6942 | * ipr_ioafp_mode_select_page24 - Issue Mode Select to IOA |
6943 | * @ipr_cmd: ipr command struct |
6944 | * |
6945 | * This function enables dual IOA RAID support if possible. |
6946 | * |
6947 | * Return value: |
6948 | * IPR_RC_JOB_RETURN |
6949 | **/ |
6950 | static int ipr_ioafp_mode_select_page24(struct ipr_cmnd *ipr_cmd) |
6951 | { |
6952 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; |
6953 | struct ipr_mode_pages *mode_pages = &ioa_cfg->vpd_cbs->mode_pages; |
6954 | struct ipr_mode_page24 *mode_page; |
6955 | int length; |
6956 | |
6957 | ENTER; |
6958 | mode_page = ipr_get_mode_page(mode_pages, page_code: 0x24, |
6959 | len: sizeof(struct ipr_mode_page24)); |
6960 | |
6961 | if (mode_page) |
6962 | mode_page->flags |= IPR_ENABLE_DUAL_IOA_AF; |
6963 | |
6964 | length = mode_pages->hdr.length + 1; |
6965 | mode_pages->hdr.length = 0; |
6966 | |
6967 | ipr_build_mode_select(ipr_cmd, cpu_to_be32(IPR_IOA_RES_HANDLE), parm: 0x11, |
6968 | dma_addr: ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, mode_pages), |
6969 | xfer_len: length); |
6970 | |
6971 | ipr_cmd->job_step = ipr_ioafp_mode_sense_page28; |
6972 | ipr_do_req(ipr_cmd, done: ipr_reset_ioa_job, timeout_func: ipr_timeout, IPR_INTERNAL_TIMEOUT); |
6973 | |
6974 | LEAVE; |
6975 | return IPR_RC_JOB_RETURN; |
6976 | } |
6977 | |
6978 | /** |
6979 | * ipr_reset_mode_sense_page24_failed - Handle failure of IOAFP mode sense |
6980 | * @ipr_cmd: ipr command struct |
6981 | * |
6982 | * This function handles the failure of a Mode Sense to the IOAFP. |
6983 | * Some adapters do not handle all mode pages. |
6984 | * |
6985 | * Return value: |
6986 | * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN |
6987 | **/ |
6988 | static int ipr_reset_mode_sense_page24_failed(struct ipr_cmnd *ipr_cmd) |
6989 | { |
6990 | u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc); |
6991 | |
6992 | if (ioasc == IPR_IOASC_IR_INVALID_REQ_TYPE_OR_PKT) { |
6993 | ipr_cmd->job_step = ipr_ioafp_mode_sense_page28; |
6994 | return IPR_RC_JOB_CONTINUE; |
6995 | } |
6996 | |
6997 | return ipr_reset_cmd_failed(ipr_cmd); |
6998 | } |
6999 | |
7000 | /** |
7001 | * ipr_ioafp_mode_sense_page24 - Issue Page 24 Mode Sense to IOA |
7002 | * @ipr_cmd: ipr command struct |
7003 | * |
7004 | * This function send a mode sense to the IOA to retrieve |
7005 | * the IOA Advanced Function Control mode page. |
7006 | * |
7007 | * Return value: |
7008 | * IPR_RC_JOB_RETURN |
7009 | **/ |
7010 | static int ipr_ioafp_mode_sense_page24(struct ipr_cmnd *ipr_cmd) |
7011 | { |
7012 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; |
7013 | |
7014 | ENTER; |
7015 | ipr_build_mode_sense(ipr_cmd, cpu_to_be32(IPR_IOA_RES_HANDLE), |
7016 | parm: 0x24, dma_addr: ioa_cfg->vpd_cbs_dma + |
7017 | offsetof(struct ipr_misc_cbs, mode_pages), |
7018 | xfer_len: sizeof(struct ipr_mode_pages)); |
7019 | |
7020 | ipr_cmd->job_step = ipr_ioafp_mode_select_page24; |
7021 | ipr_cmd->job_step_failed = ipr_reset_mode_sense_page24_failed; |
7022 | |
7023 | ipr_do_req(ipr_cmd, done: ipr_reset_ioa_job, timeout_func: ipr_timeout, IPR_INTERNAL_TIMEOUT); |
7024 | |
7025 | LEAVE; |
7026 | return IPR_RC_JOB_RETURN; |
7027 | } |
7028 | |
7029 | /** |
7030 | * ipr_init_res_table - Initialize the resource table |
7031 | * @ipr_cmd: ipr command struct |
7032 | * |
7033 | * This function looks through the existing resource table, comparing |
7034 | * it with the config table. This function will take care of old/new |
7035 | * devices and schedule adding/removing them from the mid-layer |
7036 | * as appropriate. |
7037 | * |
7038 | * Return value: |
7039 | * IPR_RC_JOB_CONTINUE |
7040 | **/ |
7041 | static int ipr_init_res_table(struct ipr_cmnd *ipr_cmd) |
7042 | { |
7043 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; |
7044 | struct ipr_resource_entry *res, *temp; |
7045 | struct ipr_config_table_entry_wrapper cfgtew; |
7046 | int entries, found, flag, i; |
7047 | LIST_HEAD(old_res); |
7048 | |
7049 | ENTER; |
7050 | if (ioa_cfg->sis64) |
7051 | flag = ioa_cfg->u.cfg_table64->hdr64.flags; |
7052 | else |
7053 | flag = ioa_cfg->u.cfg_table->hdr.flags; |
7054 | |
7055 | if (flag & IPR_UCODE_DOWNLOAD_REQ) |
7056 | dev_err(&ioa_cfg->pdev->dev, "Microcode download required\n" ); |
7057 | |
7058 | list_for_each_entry_safe(res, temp, &ioa_cfg->used_res_q, queue) |
7059 | list_move_tail(list: &res->queue, head: &old_res); |
7060 | |
7061 | if (ioa_cfg->sis64) |
7062 | entries = be16_to_cpu(ioa_cfg->u.cfg_table64->hdr64.num_entries); |
7063 | else |
7064 | entries = ioa_cfg->u.cfg_table->hdr.num_entries; |
7065 | |
7066 | for (i = 0; i < entries; i++) { |
7067 | if (ioa_cfg->sis64) |
7068 | cfgtew.u.cfgte64 = &ioa_cfg->u.cfg_table64->dev[i]; |
7069 | else |
7070 | cfgtew.u.cfgte = &ioa_cfg->u.cfg_table->dev[i]; |
7071 | found = 0; |
7072 | |
7073 | list_for_each_entry_safe(res, temp, &old_res, queue) { |
7074 | if (ipr_is_same_device(res, cfgtew: &cfgtew)) { |
7075 | list_move_tail(list: &res->queue, head: &ioa_cfg->used_res_q); |
7076 | found = 1; |
7077 | break; |
7078 | } |
7079 | } |
7080 | |
7081 | if (!found) { |
7082 | if (list_empty(head: &ioa_cfg->free_res_q)) { |
7083 | dev_err(&ioa_cfg->pdev->dev, "Too many devices attached\n" ); |
7084 | break; |
7085 | } |
7086 | |
7087 | found = 1; |
7088 | res = list_entry(ioa_cfg->free_res_q.next, |
7089 | struct ipr_resource_entry, queue); |
7090 | list_move_tail(list: &res->queue, head: &ioa_cfg->used_res_q); |
7091 | ipr_init_res_entry(res, cfgtew: &cfgtew); |
7092 | res->add_to_ml = 1; |
7093 | } else if (res->sdev && (ipr_is_vset_device(res) || ipr_is_scsi_disk(res))) |
7094 | res->sdev->allow_restart = 1; |
7095 | |
7096 | if (found) |
7097 | ipr_update_res_entry(res, cfgtew: &cfgtew); |
7098 | } |
7099 | |
7100 | list_for_each_entry_safe(res, temp, &old_res, queue) { |
7101 | if (res->sdev) { |
7102 | res->del_from_ml = 1; |
7103 | res->res_handle = IPR_INVALID_RES_HANDLE; |
7104 | list_move_tail(list: &res->queue, head: &ioa_cfg->used_res_q); |
7105 | } |
7106 | } |
7107 | |
7108 | list_for_each_entry_safe(res, temp, &old_res, queue) { |
7109 | ipr_clear_res_target(res); |
7110 | list_move_tail(list: &res->queue, head: &ioa_cfg->free_res_q); |
7111 | } |
7112 | |
7113 | if (ioa_cfg->dual_raid && ipr_dual_ioa_raid) |
7114 | ipr_cmd->job_step = ipr_ioafp_mode_sense_page24; |
7115 | else |
7116 | ipr_cmd->job_step = ipr_ioafp_mode_sense_page28; |
7117 | |
7118 | LEAVE; |
7119 | return IPR_RC_JOB_CONTINUE; |
7120 | } |
7121 | |
7122 | /** |
7123 | * ipr_ioafp_query_ioa_cfg - Send a Query IOA Config to the adapter. |
7124 | * @ipr_cmd: ipr command struct |
7125 | * |
7126 | * This function sends a Query IOA Configuration command |
7127 | * to the adapter to retrieve the IOA configuration table. |
7128 | * |
7129 | * Return value: |
7130 | * IPR_RC_JOB_RETURN |
7131 | **/ |
7132 | static int ipr_ioafp_query_ioa_cfg(struct ipr_cmnd *ipr_cmd) |
7133 | { |
7134 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; |
7135 | struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb; |
7136 | struct ipr_inquiry_page3 *ucode_vpd = &ioa_cfg->vpd_cbs->page3_data; |
7137 | struct ipr_inquiry_cap *cap = &ioa_cfg->vpd_cbs->cap; |
7138 | |
7139 | ENTER; |
7140 | if (cap->cap & IPR_CAP_DUAL_IOA_RAID) |
7141 | ioa_cfg->dual_raid = 1; |
7142 | dev_info(&ioa_cfg->pdev->dev, "Adapter firmware version: %02X%02X%02X%02X\n" , |
7143 | ucode_vpd->major_release, ucode_vpd->card_type, |
7144 | ucode_vpd->minor_release[0], ucode_vpd->minor_release[1]); |
7145 | ioarcb->cmd_pkt.request_type = IPR_RQTYPE_IOACMD; |
7146 | ioarcb->res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE); |
7147 | |
7148 | ioarcb->cmd_pkt.cdb[0] = IPR_QUERY_IOA_CONFIG; |
7149 | ioarcb->cmd_pkt.cdb[6] = (ioa_cfg->cfg_table_size >> 16) & 0xff; |
7150 | ioarcb->cmd_pkt.cdb[7] = (ioa_cfg->cfg_table_size >> 8) & 0xff; |
7151 | ioarcb->cmd_pkt.cdb[8] = ioa_cfg->cfg_table_size & 0xff; |
7152 | |
7153 | ipr_init_ioadl(ipr_cmd, dma_addr: ioa_cfg->cfg_table_dma, len: ioa_cfg->cfg_table_size, |
7154 | IPR_IOADL_FLAGS_READ_LAST); |
7155 | |
7156 | ipr_cmd->job_step = ipr_init_res_table; |
7157 | |
7158 | ipr_do_req(ipr_cmd, done: ipr_reset_ioa_job, timeout_func: ipr_timeout, IPR_INTERNAL_TIMEOUT); |
7159 | |
7160 | LEAVE; |
7161 | return IPR_RC_JOB_RETURN; |
7162 | } |
7163 | |
7164 | static int ipr_ioa_service_action_failed(struct ipr_cmnd *ipr_cmd) |
7165 | { |
7166 | u32 ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc); |
7167 | |
7168 | if (ioasc == IPR_IOASC_IR_INVALID_REQ_TYPE_OR_PKT) |
7169 | return IPR_RC_JOB_CONTINUE; |
7170 | |
7171 | return ipr_reset_cmd_failed(ipr_cmd); |
7172 | } |
7173 | |
7174 | static void ipr_build_ioa_service_action(struct ipr_cmnd *ipr_cmd, |
7175 | __be32 res_handle, u8 sa_code) |
7176 | { |
7177 | struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb; |
7178 | |
7179 | ioarcb->res_handle = res_handle; |
7180 | ioarcb->cmd_pkt.cdb[0] = IPR_IOA_SERVICE_ACTION; |
7181 | ioarcb->cmd_pkt.cdb[1] = sa_code; |
7182 | ioarcb->cmd_pkt.request_type = IPR_RQTYPE_IOACMD; |
7183 | } |
7184 | |
7185 | /** |
7186 | * ipr_ioafp_set_caching_parameters - Issue Set Cache parameters service |
7187 | * action |
7188 | * @ipr_cmd: ipr command struct |
7189 | * |
7190 | * Return value: |
7191 | * none |
7192 | **/ |
7193 | static int ipr_ioafp_set_caching_parameters(struct ipr_cmnd *ipr_cmd) |
7194 | { |
7195 | struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb; |
7196 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; |
7197 | struct ipr_inquiry_pageC4 *pageC4 = &ioa_cfg->vpd_cbs->pageC4_data; |
7198 | |
7199 | ENTER; |
7200 | |
7201 | ipr_cmd->job_step = ipr_ioafp_query_ioa_cfg; |
7202 | |
7203 | if (pageC4->cache_cap[0] & IPR_CAP_SYNC_CACHE) { |
7204 | ipr_build_ioa_service_action(ipr_cmd, |
7205 | cpu_to_be32(IPR_IOA_RES_HANDLE), |
7206 | IPR_IOA_SA_CHANGE_CACHE_PARAMS); |
7207 | |
7208 | ioarcb->cmd_pkt.cdb[2] = 0x40; |
7209 | |
7210 | ipr_cmd->job_step_failed = ipr_ioa_service_action_failed; |
7211 | ipr_do_req(ipr_cmd, done: ipr_reset_ioa_job, timeout_func: ipr_timeout, |
7212 | IPR_SET_SUP_DEVICE_TIMEOUT); |
7213 | |
7214 | LEAVE; |
7215 | return IPR_RC_JOB_RETURN; |
7216 | } |
7217 | |
7218 | LEAVE; |
7219 | return IPR_RC_JOB_CONTINUE; |
7220 | } |
7221 | |
7222 | /** |
7223 | * ipr_ioafp_inquiry - Send an Inquiry to the adapter. |
7224 | * @ipr_cmd: ipr command struct |
7225 | * @flags: flags to send |
7226 | * @page: page to inquire |
7227 | * @dma_addr: DMA address |
7228 | * @xfer_len: transfer data length |
7229 | * |
7230 | * This utility function sends an inquiry to the adapter. |
7231 | * |
7232 | * Return value: |
7233 | * none |
7234 | **/ |
7235 | static void ipr_ioafp_inquiry(struct ipr_cmnd *ipr_cmd, u8 flags, u8 page, |
7236 | dma_addr_t dma_addr, u8 xfer_len) |
7237 | { |
7238 | struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb; |
7239 | |
7240 | ENTER; |
7241 | ioarcb->cmd_pkt.request_type = IPR_RQTYPE_SCSICDB; |
7242 | ioarcb->res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE); |
7243 | |
7244 | ioarcb->cmd_pkt.cdb[0] = INQUIRY; |
7245 | ioarcb->cmd_pkt.cdb[1] = flags; |
7246 | ioarcb->cmd_pkt.cdb[2] = page; |
7247 | ioarcb->cmd_pkt.cdb[4] = xfer_len; |
7248 | |
7249 | ipr_init_ioadl(ipr_cmd, dma_addr, len: xfer_len, IPR_IOADL_FLAGS_READ_LAST); |
7250 | |
7251 | ipr_do_req(ipr_cmd, done: ipr_reset_ioa_job, timeout_func: ipr_timeout, IPR_INTERNAL_TIMEOUT); |
7252 | LEAVE; |
7253 | } |
7254 | |
7255 | /** |
7256 | * ipr_inquiry_page_supported - Is the given inquiry page supported |
7257 | * @page0: inquiry page 0 buffer |
7258 | * @page: page code. |
7259 | * |
7260 | * This function determines if the specified inquiry page is supported. |
7261 | * |
7262 | * Return value: |
7263 | * 1 if page is supported / 0 if not |
7264 | **/ |
7265 | static int ipr_inquiry_page_supported(struct ipr_inquiry_page0 *page0, u8 page) |
7266 | { |
7267 | int i; |
7268 | |
7269 | for (i = 0; i < min_t(u8, page0->len, IPR_INQUIRY_PAGE0_ENTRIES); i++) |
7270 | if (page0->page[i] == page) |
7271 | return 1; |
7272 | |
7273 | return 0; |
7274 | } |
7275 | |
7276 | /** |
7277 | * ipr_ioafp_pageC4_inquiry - Send a Page 0xC4 Inquiry to the adapter. |
7278 | * @ipr_cmd: ipr command struct |
7279 | * |
7280 | * This function sends a Page 0xC4 inquiry to the adapter |
7281 | * to retrieve software VPD information. |
7282 | * |
7283 | * Return value: |
7284 | * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN |
7285 | **/ |
7286 | static int ipr_ioafp_pageC4_inquiry(struct ipr_cmnd *ipr_cmd) |
7287 | { |
7288 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; |
7289 | struct ipr_inquiry_page0 *page0 = &ioa_cfg->vpd_cbs->page0_data; |
7290 | struct ipr_inquiry_pageC4 *pageC4 = &ioa_cfg->vpd_cbs->pageC4_data; |
7291 | |
7292 | ENTER; |
7293 | ipr_cmd->job_step = ipr_ioafp_set_caching_parameters; |
7294 | memset(pageC4, 0, sizeof(*pageC4)); |
7295 | |
7296 | if (ipr_inquiry_page_supported(page0, page: 0xC4)) { |
7297 | ipr_ioafp_inquiry(ipr_cmd, flags: 1, page: 0xC4, |
7298 | dma_addr: (ioa_cfg->vpd_cbs_dma |
7299 | + offsetof(struct ipr_misc_cbs, |
7300 | pageC4_data)), |
7301 | xfer_len: sizeof(struct ipr_inquiry_pageC4)); |
7302 | return IPR_RC_JOB_RETURN; |
7303 | } |
7304 | |
7305 | LEAVE; |
7306 | return IPR_RC_JOB_CONTINUE; |
7307 | } |
7308 | |
7309 | /** |
7310 | * ipr_ioafp_cap_inquiry - Send a Page 0xD0 Inquiry to the adapter. |
7311 | * @ipr_cmd: ipr command struct |
7312 | * |
7313 | * This function sends a Page 0xD0 inquiry to the adapter |
7314 | * to retrieve adapter capabilities. |
7315 | * |
7316 | * Return value: |
7317 | * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN |
7318 | **/ |
7319 | static int ipr_ioafp_cap_inquiry(struct ipr_cmnd *ipr_cmd) |
7320 | { |
7321 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; |
7322 | struct ipr_inquiry_page0 *page0 = &ioa_cfg->vpd_cbs->page0_data; |
7323 | struct ipr_inquiry_cap *cap = &ioa_cfg->vpd_cbs->cap; |
7324 | |
7325 | ENTER; |
7326 | ipr_cmd->job_step = ipr_ioafp_pageC4_inquiry; |
7327 | memset(cap, 0, sizeof(*cap)); |
7328 | |
7329 | if (ipr_inquiry_page_supported(page0, page: 0xD0)) { |
7330 | ipr_ioafp_inquiry(ipr_cmd, flags: 1, page: 0xD0, |
7331 | dma_addr: ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, cap), |
7332 | xfer_len: sizeof(struct ipr_inquiry_cap)); |
7333 | return IPR_RC_JOB_RETURN; |
7334 | } |
7335 | |
7336 | LEAVE; |
7337 | return IPR_RC_JOB_CONTINUE; |
7338 | } |
7339 | |
7340 | /** |
7341 | * ipr_ioafp_page3_inquiry - Send a Page 3 Inquiry to the adapter. |
7342 | * @ipr_cmd: ipr command struct |
7343 | * |
7344 | * This function sends a Page 3 inquiry to the adapter |
7345 | * to retrieve software VPD information. |
7346 | * |
7347 | * Return value: |
7348 | * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN |
7349 | **/ |
7350 | static int ipr_ioafp_page3_inquiry(struct ipr_cmnd *ipr_cmd) |
7351 | { |
7352 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; |
7353 | |
7354 | ENTER; |
7355 | |
7356 | ipr_cmd->job_step = ipr_ioafp_cap_inquiry; |
7357 | |
7358 | ipr_ioafp_inquiry(ipr_cmd, flags: 1, page: 3, |
7359 | dma_addr: ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, page3_data), |
7360 | xfer_len: sizeof(struct ipr_inquiry_page3)); |
7361 | |
7362 | LEAVE; |
7363 | return IPR_RC_JOB_RETURN; |
7364 | } |
7365 | |
7366 | /** |
7367 | * ipr_ioafp_page0_inquiry - Send a Page 0 Inquiry to the adapter. |
7368 | * @ipr_cmd: ipr command struct |
7369 | * |
7370 | * This function sends a Page 0 inquiry to the adapter |
7371 | * to retrieve supported inquiry pages. |
7372 | * |
7373 | * Return value: |
7374 | * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN |
7375 | **/ |
7376 | static int ipr_ioafp_page0_inquiry(struct ipr_cmnd *ipr_cmd) |
7377 | { |
7378 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; |
7379 | char type[5]; |
7380 | |
7381 | ENTER; |
7382 | |
7383 | /* Grab the type out of the VPD and store it away */ |
7384 | memcpy(type, ioa_cfg->vpd_cbs->ioa_vpd.std_inq_data.vpids.product_id, 4); |
7385 | type[4] = '\0'; |
7386 | ioa_cfg->type = simple_strtoul((char *)type, NULL, 16); |
7387 | |
7388 | if (ipr_invalid_adapter(ioa_cfg)) { |
7389 | dev_err(&ioa_cfg->pdev->dev, |
7390 | "Adapter not supported in this hardware configuration.\n" ); |
7391 | |
7392 | if (!ipr_testmode) { |
7393 | ioa_cfg->reset_retries += IPR_NUM_RESET_RELOAD_RETRIES; |
7394 | ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE); |
7395 | list_add_tail(new: &ipr_cmd->queue, |
7396 | head: &ioa_cfg->hrrq->hrrq_free_q); |
7397 | return IPR_RC_JOB_RETURN; |
7398 | } |
7399 | } |
7400 | |
7401 | ipr_cmd->job_step = ipr_ioafp_page3_inquiry; |
7402 | |
7403 | ipr_ioafp_inquiry(ipr_cmd, flags: 1, page: 0, |
7404 | dma_addr: ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, page0_data), |
7405 | xfer_len: sizeof(struct ipr_inquiry_page0)); |
7406 | |
7407 | LEAVE; |
7408 | return IPR_RC_JOB_RETURN; |
7409 | } |
7410 | |
7411 | /** |
7412 | * ipr_ioafp_std_inquiry - Send a Standard Inquiry to the adapter. |
7413 | * @ipr_cmd: ipr command struct |
7414 | * |
7415 | * This function sends a standard inquiry to the adapter. |
7416 | * |
7417 | * Return value: |
7418 | * IPR_RC_JOB_RETURN |
7419 | **/ |
7420 | static int ipr_ioafp_std_inquiry(struct ipr_cmnd *ipr_cmd) |
7421 | { |
7422 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; |
7423 | |
7424 | ENTER; |
7425 | ipr_cmd->job_step = ipr_ioafp_page0_inquiry; |
7426 | |
7427 | ipr_ioafp_inquiry(ipr_cmd, flags: 0, page: 0, |
7428 | dma_addr: ioa_cfg->vpd_cbs_dma + offsetof(struct ipr_misc_cbs, ioa_vpd), |
7429 | xfer_len: sizeof(struct ipr_ioa_vpd)); |
7430 | |
7431 | LEAVE; |
7432 | return IPR_RC_JOB_RETURN; |
7433 | } |
7434 | |
7435 | /** |
7436 | * ipr_ioafp_identify_hrrq - Send Identify Host RRQ. |
7437 | * @ipr_cmd: ipr command struct |
7438 | * |
7439 | * This function send an Identify Host Request Response Queue |
7440 | * command to establish the HRRQ with the adapter. |
7441 | * |
7442 | * Return value: |
7443 | * IPR_RC_JOB_RETURN |
7444 | **/ |
7445 | static int ipr_ioafp_identify_hrrq(struct ipr_cmnd *ipr_cmd) |
7446 | { |
7447 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; |
7448 | struct ipr_ioarcb *ioarcb = &ipr_cmd->ioarcb; |
7449 | struct ipr_hrr_queue *hrrq; |
7450 | |
7451 | ENTER; |
7452 | ipr_cmd->job_step = ipr_ioafp_std_inquiry; |
7453 | if (ioa_cfg->identify_hrrq_index == 0) |
7454 | dev_info(&ioa_cfg->pdev->dev, "Starting IOA initialization sequence.\n" ); |
7455 | |
7456 | if (ioa_cfg->identify_hrrq_index < ioa_cfg->hrrq_num) { |
7457 | hrrq = &ioa_cfg->hrrq[ioa_cfg->identify_hrrq_index]; |
7458 | |
7459 | ioarcb->cmd_pkt.cdb[0] = IPR_ID_HOST_RR_Q; |
7460 | ioarcb->res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE); |
7461 | |
7462 | ioarcb->cmd_pkt.request_type = IPR_RQTYPE_IOACMD; |
7463 | if (ioa_cfg->sis64) |
7464 | ioarcb->cmd_pkt.cdb[1] = 0x1; |
7465 | |
7466 | if (ioa_cfg->nvectors == 1) |
7467 | ioarcb->cmd_pkt.cdb[1] &= ~IPR_ID_HRRQ_SELE_ENABLE; |
7468 | else |
7469 | ioarcb->cmd_pkt.cdb[1] |= IPR_ID_HRRQ_SELE_ENABLE; |
7470 | |
7471 | ioarcb->cmd_pkt.cdb[2] = |
7472 | ((u64) hrrq->host_rrq_dma >> 24) & 0xff; |
7473 | ioarcb->cmd_pkt.cdb[3] = |
7474 | ((u64) hrrq->host_rrq_dma >> 16) & 0xff; |
7475 | ioarcb->cmd_pkt.cdb[4] = |
7476 | ((u64) hrrq->host_rrq_dma >> 8) & 0xff; |
7477 | ioarcb->cmd_pkt.cdb[5] = |
7478 | ((u64) hrrq->host_rrq_dma) & 0xff; |
7479 | ioarcb->cmd_pkt.cdb[7] = |
7480 | ((sizeof(u32) * hrrq->size) >> 8) & 0xff; |
7481 | ioarcb->cmd_pkt.cdb[8] = |
7482 | (sizeof(u32) * hrrq->size) & 0xff; |
7483 | |
7484 | if (ioarcb->cmd_pkt.cdb[1] & IPR_ID_HRRQ_SELE_ENABLE) |
7485 | ioarcb->cmd_pkt.cdb[9] = |
7486 | ioa_cfg->identify_hrrq_index; |
7487 | |
7488 | if (ioa_cfg->sis64) { |
7489 | ioarcb->cmd_pkt.cdb[10] = |
7490 | ((u64) hrrq->host_rrq_dma >> 56) & 0xff; |
7491 | ioarcb->cmd_pkt.cdb[11] = |
7492 | ((u64) hrrq->host_rrq_dma >> 48) & 0xff; |
7493 | ioarcb->cmd_pkt.cdb[12] = |
7494 | ((u64) hrrq->host_rrq_dma >> 40) & 0xff; |
7495 | ioarcb->cmd_pkt.cdb[13] = |
7496 | ((u64) hrrq->host_rrq_dma >> 32) & 0xff; |
7497 | } |
7498 | |
7499 | if (ioarcb->cmd_pkt.cdb[1] & IPR_ID_HRRQ_SELE_ENABLE) |
7500 | ioarcb->cmd_pkt.cdb[14] = |
7501 | ioa_cfg->identify_hrrq_index; |
7502 | |
7503 | ipr_do_req(ipr_cmd, done: ipr_reset_ioa_job, timeout_func: ipr_timeout, |
7504 | IPR_INTERNAL_TIMEOUT); |
7505 | |
7506 | if (++ioa_cfg->identify_hrrq_index < ioa_cfg->hrrq_num) |
7507 | ipr_cmd->job_step = ipr_ioafp_identify_hrrq; |
7508 | |
7509 | LEAVE; |
7510 | return IPR_RC_JOB_RETURN; |
7511 | } |
7512 | |
7513 | LEAVE; |
7514 | return IPR_RC_JOB_CONTINUE; |
7515 | } |
7516 | |
7517 | /** |
7518 | * ipr_reset_timer_done - Adapter reset timer function |
7519 | * @t: Timer context used to fetch ipr command struct |
7520 | * |
7521 | * Description: This function is used in adapter reset processing |
7522 | * for timing events. If the reset_cmd pointer in the IOA |
7523 | * config struct is not this adapter's we are doing nested |
7524 | * resets and fail_all_ops will take care of freeing the |
7525 | * command block. |
7526 | * |
7527 | * Return value: |
7528 | * none |
7529 | **/ |
7530 | static void ipr_reset_timer_done(struct timer_list *t) |
7531 | { |
7532 | struct ipr_cmnd *ipr_cmd = from_timer(ipr_cmd, t, timer); |
7533 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; |
7534 | unsigned long lock_flags = 0; |
7535 | |
7536 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); |
7537 | |
7538 | if (ioa_cfg->reset_cmd == ipr_cmd) { |
7539 | list_del(entry: &ipr_cmd->queue); |
7540 | ipr_cmd->done(ipr_cmd); |
7541 | } |
7542 | |
7543 | spin_unlock_irqrestore(lock: ioa_cfg->host->host_lock, flags: lock_flags); |
7544 | } |
7545 | |
7546 | /** |
7547 | * ipr_reset_start_timer - Start a timer for adapter reset job |
7548 | * @ipr_cmd: ipr command struct |
7549 | * @timeout: timeout value |
7550 | * |
7551 | * Description: This function is used in adapter reset processing |
7552 | * for timing events. If the reset_cmd pointer in the IOA |
7553 | * config struct is not this adapter's we are doing nested |
7554 | * resets and fail_all_ops will take care of freeing the |
7555 | * command block. |
7556 | * |
7557 | * Return value: |
7558 | * none |
7559 | **/ |
7560 | static void ipr_reset_start_timer(struct ipr_cmnd *ipr_cmd, |
7561 | unsigned long timeout) |
7562 | { |
7563 | |
7564 | ENTER; |
7565 | list_add_tail(new: &ipr_cmd->queue, head: &ipr_cmd->hrrq->hrrq_pending_q); |
7566 | ipr_cmd->done = ipr_reset_ioa_job; |
7567 | |
7568 | ipr_cmd->timer.expires = jiffies + timeout; |
7569 | ipr_cmd->timer.function = ipr_reset_timer_done; |
7570 | add_timer(timer: &ipr_cmd->timer); |
7571 | } |
7572 | |
7573 | /** |
7574 | * ipr_init_ioa_mem - Initialize ioa_cfg control block |
7575 | * @ioa_cfg: ioa cfg struct |
7576 | * |
7577 | * Return value: |
7578 | * nothing |
7579 | **/ |
7580 | static void ipr_init_ioa_mem(struct ipr_ioa_cfg *ioa_cfg) |
7581 | { |
7582 | struct ipr_hrr_queue *hrrq; |
7583 | |
7584 | for_each_hrrq(hrrq, ioa_cfg) { |
7585 | spin_lock(lock: &hrrq->_lock); |
7586 | memset(hrrq->host_rrq, 0, sizeof(u32) * hrrq->size); |
7587 | |
7588 | /* Initialize Host RRQ pointers */ |
7589 | hrrq->hrrq_start = hrrq->host_rrq; |
7590 | hrrq->hrrq_end = &hrrq->host_rrq[hrrq->size - 1]; |
7591 | hrrq->hrrq_curr = hrrq->hrrq_start; |
7592 | hrrq->toggle_bit = 1; |
7593 | spin_unlock(lock: &hrrq->_lock); |
7594 | } |
7595 | wmb(); |
7596 | |
7597 | ioa_cfg->identify_hrrq_index = 0; |
7598 | if (ioa_cfg->hrrq_num == 1) |
7599 | atomic_set(v: &ioa_cfg->hrrq_index, i: 0); |
7600 | else |
7601 | atomic_set(v: &ioa_cfg->hrrq_index, i: 1); |
7602 | |
7603 | /* Zero out config table */ |
7604 | memset(ioa_cfg->u.cfg_table, 0, ioa_cfg->cfg_table_size); |
7605 | } |
7606 | |
7607 | /** |
7608 | * ipr_reset_next_stage - Process IPL stage change based on feedback register. |
7609 | * @ipr_cmd: ipr command struct |
7610 | * |
7611 | * Return value: |
7612 | * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN |
7613 | **/ |
7614 | static int ipr_reset_next_stage(struct ipr_cmnd *ipr_cmd) |
7615 | { |
7616 | unsigned long stage, stage_time; |
7617 | u32 feedback; |
7618 | volatile u32 int_reg; |
7619 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; |
7620 | u64 maskval = 0; |
7621 | |
7622 | feedback = readl(addr: ioa_cfg->regs.init_feedback_reg); |
7623 | stage = feedback & IPR_IPL_INIT_STAGE_MASK; |
7624 | stage_time = feedback & IPR_IPL_INIT_STAGE_TIME_MASK; |
7625 | |
7626 | ipr_dbg("IPL stage = 0x%lx, IPL stage time = %ld\n" , stage, stage_time); |
7627 | |
7628 | /* sanity check the stage_time value */ |
7629 | if (stage_time == 0) |
7630 | stage_time = IPR_IPL_INIT_DEFAULT_STAGE_TIME; |
7631 | else if (stage_time < IPR_IPL_INIT_MIN_STAGE_TIME) |
7632 | stage_time = IPR_IPL_INIT_MIN_STAGE_TIME; |
7633 | else if (stage_time > IPR_LONG_OPERATIONAL_TIMEOUT) |
7634 | stage_time = IPR_LONG_OPERATIONAL_TIMEOUT; |
7635 | |
7636 | if (stage == IPR_IPL_INIT_STAGE_UNKNOWN) { |
7637 | writel(IPR_PCII_IPL_STAGE_CHANGE, addr: ioa_cfg->regs.set_interrupt_mask_reg); |
7638 | int_reg = readl(addr: ioa_cfg->regs.sense_interrupt_mask_reg); |
7639 | stage_time = ioa_cfg->transop_timeout; |
7640 | ipr_cmd->job_step = ipr_ioafp_identify_hrrq; |
7641 | } else if (stage == IPR_IPL_INIT_STAGE_TRANSOP) { |
7642 | int_reg = readl(addr: ioa_cfg->regs.sense_interrupt_reg32); |
7643 | if (int_reg & IPR_PCII_IOA_TRANS_TO_OPER) { |
7644 | ipr_cmd->job_step = ipr_ioafp_identify_hrrq; |
7645 | maskval = IPR_PCII_IPL_STAGE_CHANGE; |
7646 | maskval = (maskval << 32) | IPR_PCII_IOA_TRANS_TO_OPER; |
7647 | writeq(val: maskval, addr: ioa_cfg->regs.set_interrupt_mask_reg); |
7648 | int_reg = readl(addr: ioa_cfg->regs.sense_interrupt_mask_reg); |
7649 | return IPR_RC_JOB_CONTINUE; |
7650 | } |
7651 | } |
7652 | |
7653 | ipr_cmd->timer.expires = jiffies + stage_time * HZ; |
7654 | ipr_cmd->timer.function = ipr_oper_timeout; |
7655 | ipr_cmd->done = ipr_reset_ioa_job; |
7656 | add_timer(timer: &ipr_cmd->timer); |
7657 | |
7658 | list_add_tail(new: &ipr_cmd->queue, head: &ipr_cmd->hrrq->hrrq_pending_q); |
7659 | |
7660 | return IPR_RC_JOB_RETURN; |
7661 | } |
7662 | |
7663 | /** |
7664 | * ipr_reset_enable_ioa - Enable the IOA following a reset. |
7665 | * @ipr_cmd: ipr command struct |
7666 | * |
7667 | * This function reinitializes some control blocks and |
7668 | * enables destructive diagnostics on the adapter. |
7669 | * |
7670 | * Return value: |
7671 | * IPR_RC_JOB_RETURN |
7672 | **/ |
7673 | static int ipr_reset_enable_ioa(struct ipr_cmnd *ipr_cmd) |
7674 | { |
7675 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; |
7676 | volatile u32 int_reg; |
7677 | volatile u64 maskval; |
7678 | int i; |
7679 | |
7680 | ENTER; |
7681 | ipr_cmd->job_step = ipr_ioafp_identify_hrrq; |
7682 | ipr_init_ioa_mem(ioa_cfg); |
7683 | |
7684 | for (i = 0; i < ioa_cfg->hrrq_num; i++) { |
7685 | spin_lock(lock: &ioa_cfg->hrrq[i]._lock); |
7686 | ioa_cfg->hrrq[i].allow_interrupts = 1; |
7687 | spin_unlock(lock: &ioa_cfg->hrrq[i]._lock); |
7688 | } |
7689 | if (ioa_cfg->sis64) { |
7690 | /* Set the adapter to the correct endian mode. */ |
7691 | writel(IPR_ENDIAN_SWAP_KEY, addr: ioa_cfg->regs.endian_swap_reg); |
7692 | int_reg = readl(addr: ioa_cfg->regs.endian_swap_reg); |
7693 | } |
7694 | |
7695 | int_reg = readl(addr: ioa_cfg->regs.sense_interrupt_reg32); |
7696 | |
7697 | if (int_reg & IPR_PCII_IOA_TRANS_TO_OPER) { |
7698 | writel(val: (IPR_PCII_ERROR_INTERRUPTS | IPR_PCII_HRRQ_UPDATED), |
7699 | addr: ioa_cfg->regs.clr_interrupt_mask_reg32); |
7700 | int_reg = readl(addr: ioa_cfg->regs.sense_interrupt_mask_reg); |
7701 | return IPR_RC_JOB_CONTINUE; |
7702 | } |
7703 | |
7704 | /* Enable destructive diagnostics on IOA */ |
7705 | writel(val: ioa_cfg->doorbell, addr: ioa_cfg->regs.set_uproc_interrupt_reg32); |
7706 | |
7707 | if (ioa_cfg->sis64) { |
7708 | maskval = IPR_PCII_IPL_STAGE_CHANGE; |
7709 | maskval = (maskval << 32) | IPR_PCII_OPER_INTERRUPTS; |
7710 | writeq(val: maskval, addr: ioa_cfg->regs.clr_interrupt_mask_reg); |
7711 | } else |
7712 | writel(IPR_PCII_OPER_INTERRUPTS, addr: ioa_cfg->regs.clr_interrupt_mask_reg32); |
7713 | |
7714 | int_reg = readl(addr: ioa_cfg->regs.sense_interrupt_mask_reg); |
7715 | |
7716 | dev_info(&ioa_cfg->pdev->dev, "Initializing IOA.\n" ); |
7717 | |
7718 | if (ioa_cfg->sis64) { |
7719 | ipr_cmd->job_step = ipr_reset_next_stage; |
7720 | return IPR_RC_JOB_CONTINUE; |
7721 | } |
7722 | |
7723 | ipr_cmd->timer.expires = jiffies + (ioa_cfg->transop_timeout * HZ); |
7724 | ipr_cmd->timer.function = ipr_oper_timeout; |
7725 | ipr_cmd->done = ipr_reset_ioa_job; |
7726 | add_timer(timer: &ipr_cmd->timer); |
7727 | list_add_tail(new: &ipr_cmd->queue, head: &ipr_cmd->hrrq->hrrq_pending_q); |
7728 | |
7729 | LEAVE; |
7730 | return IPR_RC_JOB_RETURN; |
7731 | } |
7732 | |
7733 | /** |
7734 | * ipr_reset_wait_for_dump - Wait for a dump to timeout. |
7735 | * @ipr_cmd: ipr command struct |
7736 | * |
7737 | * This function is invoked when an adapter dump has run out |
7738 | * of processing time. |
7739 | * |
7740 | * Return value: |
7741 | * IPR_RC_JOB_CONTINUE |
7742 | **/ |
7743 | static int ipr_reset_wait_for_dump(struct ipr_cmnd *ipr_cmd) |
7744 | { |
7745 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; |
7746 | |
7747 | if (ioa_cfg->sdt_state == GET_DUMP) |
7748 | ioa_cfg->sdt_state = WAIT_FOR_DUMP; |
7749 | else if (ioa_cfg->sdt_state == READ_DUMP) |
7750 | ioa_cfg->sdt_state = ABORT_DUMP; |
7751 | |
7752 | ioa_cfg->dump_timeout = 1; |
7753 | ipr_cmd->job_step = ipr_reset_alert; |
7754 | |
7755 | return IPR_RC_JOB_CONTINUE; |
7756 | } |
7757 | |
7758 | /** |
7759 | * ipr_unit_check_no_data - Log a unit check/no data error log |
7760 | * @ioa_cfg: ioa config struct |
7761 | * |
7762 | * Logs an error indicating the adapter unit checked, but for some |
7763 | * reason, we were unable to fetch the unit check buffer. |
7764 | * |
7765 | * Return value: |
7766 | * nothing |
7767 | **/ |
7768 | static void ipr_unit_check_no_data(struct ipr_ioa_cfg *ioa_cfg) |
7769 | { |
7770 | ioa_cfg->errors_logged++; |
7771 | dev_err(&ioa_cfg->pdev->dev, "IOA unit check with no data\n" ); |
7772 | } |
7773 | |
7774 | /** |
7775 | * ipr_get_unit_check_buffer - Get the unit check buffer from the IOA |
7776 | * @ioa_cfg: ioa config struct |
7777 | * |
7778 | * Fetches the unit check buffer from the adapter by clocking the data |
7779 | * through the mailbox register. |
7780 | * |
7781 | * Return value: |
7782 | * nothing |
7783 | **/ |
7784 | static void ipr_get_unit_check_buffer(struct ipr_ioa_cfg *ioa_cfg) |
7785 | { |
7786 | unsigned long mailbox; |
7787 | struct ipr_hostrcb *hostrcb; |
7788 | struct ipr_uc_sdt sdt; |
7789 | int rc, length; |
7790 | u32 ioasc; |
7791 | |
7792 | mailbox = readl(addr: ioa_cfg->ioa_mailbox); |
7793 | |
7794 | if (!ioa_cfg->sis64 && !ipr_sdt_is_fmt2(sdt_word: mailbox)) { |
7795 | ipr_unit_check_no_data(ioa_cfg); |
7796 | return; |
7797 | } |
7798 | |
7799 | memset(&sdt, 0, sizeof(struct ipr_uc_sdt)); |
7800 | rc = ipr_get_ldump_data_section(ioa_cfg, start_addr: mailbox, dest: (__be32 *) &sdt, |
7801 | length_in_words: (sizeof(struct ipr_uc_sdt)) / sizeof(__be32)); |
7802 | |
7803 | if (rc || !(sdt.entry[0].flags & IPR_SDT_VALID_ENTRY) || |
7804 | ((be32_to_cpu(sdt.hdr.state) != IPR_FMT3_SDT_READY_TO_USE) && |
7805 | (be32_to_cpu(sdt.hdr.state) != IPR_FMT2_SDT_READY_TO_USE))) { |
7806 | ipr_unit_check_no_data(ioa_cfg); |
7807 | return; |
7808 | } |
7809 | |
7810 | /* Find length of the first sdt entry (UC buffer) */ |
7811 | if (be32_to_cpu(sdt.hdr.state) == IPR_FMT3_SDT_READY_TO_USE) |
7812 | length = be32_to_cpu(sdt.entry[0].end_token); |
7813 | else |
7814 | length = (be32_to_cpu(sdt.entry[0].end_token) - |
7815 | be32_to_cpu(sdt.entry[0].start_token)) & |
7816 | IPR_FMT2_MBX_ADDR_MASK; |
7817 | |
7818 | hostrcb = list_entry(ioa_cfg->hostrcb_free_q.next, |
7819 | struct ipr_hostrcb, queue); |
7820 | list_del_init(entry: &hostrcb->queue); |
7821 | memset(&hostrcb->hcam, 0, sizeof(hostrcb->hcam)); |
7822 | |
7823 | rc = ipr_get_ldump_data_section(ioa_cfg, |
7824 | be32_to_cpu(sdt.entry[0].start_token), |
7825 | dest: (__be32 *)&hostrcb->hcam, |
7826 | min(length, (int)sizeof(hostrcb->hcam)) / sizeof(__be32)); |
7827 | |
7828 | if (!rc) { |
7829 | ipr_handle_log_data(ioa_cfg, hostrcb); |
7830 | ioasc = be32_to_cpu(hostrcb->hcam.u.error.fd_ioasc); |
7831 | if (ioasc == IPR_IOASC_NR_IOA_RESET_REQUIRED && |
7832 | ioa_cfg->sdt_state == GET_DUMP) |
7833 | ioa_cfg->sdt_state = WAIT_FOR_DUMP; |
7834 | } else |
7835 | ipr_unit_check_no_data(ioa_cfg); |
7836 | |
7837 | list_add_tail(new: &hostrcb->queue, head: &ioa_cfg->hostrcb_free_q); |
7838 | } |
7839 | |
7840 | /** |
7841 | * ipr_reset_get_unit_check_job - Call to get the unit check buffer. |
7842 | * @ipr_cmd: ipr command struct |
7843 | * |
7844 | * Description: This function will call to get the unit check buffer. |
7845 | * |
7846 | * Return value: |
7847 | * IPR_RC_JOB_RETURN |
7848 | **/ |
7849 | static int ipr_reset_get_unit_check_job(struct ipr_cmnd *ipr_cmd) |
7850 | { |
7851 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; |
7852 | |
7853 | ENTER; |
7854 | ioa_cfg->ioa_unit_checked = 0; |
7855 | ipr_get_unit_check_buffer(ioa_cfg); |
7856 | ipr_cmd->job_step = ipr_reset_alert; |
7857 | ipr_reset_start_timer(ipr_cmd, timeout: 0); |
7858 | |
7859 | LEAVE; |
7860 | return IPR_RC_JOB_RETURN; |
7861 | } |
7862 | |
7863 | static int ipr_dump_mailbox_wait(struct ipr_cmnd *ipr_cmd) |
7864 | { |
7865 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; |
7866 | |
7867 | ENTER; |
7868 | |
7869 | if (ioa_cfg->sdt_state != GET_DUMP) |
7870 | return IPR_RC_JOB_RETURN; |
7871 | |
7872 | if (!ioa_cfg->sis64 || !ipr_cmd->u.time_left || |
7873 | (readl(addr: ioa_cfg->regs.sense_interrupt_reg) & |
7874 | IPR_PCII_MAILBOX_STABLE)) { |
7875 | |
7876 | if (!ipr_cmd->u.time_left) |
7877 | dev_err(&ioa_cfg->pdev->dev, |
7878 | "Timed out waiting for Mailbox register.\n" ); |
7879 | |
7880 | ioa_cfg->sdt_state = READ_DUMP; |
7881 | ioa_cfg->dump_timeout = 0; |
7882 | if (ioa_cfg->sis64) |
7883 | ipr_reset_start_timer(ipr_cmd, IPR_SIS64_DUMP_TIMEOUT); |
7884 | else |
7885 | ipr_reset_start_timer(ipr_cmd, IPR_SIS32_DUMP_TIMEOUT); |
7886 | ipr_cmd->job_step = ipr_reset_wait_for_dump; |
7887 | schedule_work(work: &ioa_cfg->work_q); |
7888 | |
7889 | } else { |
7890 | ipr_cmd->u.time_left -= IPR_CHECK_FOR_RESET_TIMEOUT; |
7891 | ipr_reset_start_timer(ipr_cmd, |
7892 | IPR_CHECK_FOR_RESET_TIMEOUT); |
7893 | } |
7894 | |
7895 | LEAVE; |
7896 | return IPR_RC_JOB_RETURN; |
7897 | } |
7898 | |
7899 | /** |
7900 | * ipr_reset_restore_cfg_space - Restore PCI config space. |
7901 | * @ipr_cmd: ipr command struct |
7902 | * |
7903 | * Description: This function restores the saved PCI config space of |
7904 | * the adapter, fails all outstanding ops back to the callers, and |
7905 | * fetches the dump/unit check if applicable to this reset. |
7906 | * |
7907 | * Return value: |
7908 | * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN |
7909 | **/ |
7910 | static int ipr_reset_restore_cfg_space(struct ipr_cmnd *ipr_cmd) |
7911 | { |
7912 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; |
7913 | |
7914 | ENTER; |
7915 | ioa_cfg->pdev->state_saved = true; |
7916 | pci_restore_state(dev: ioa_cfg->pdev); |
7917 | |
7918 | if (ipr_set_pcix_cmd_reg(ioa_cfg)) { |
7919 | ipr_cmd->s.ioasa.hdr.ioasc = cpu_to_be32(IPR_IOASC_PCI_ACCESS_ERROR); |
7920 | return IPR_RC_JOB_CONTINUE; |
7921 | } |
7922 | |
7923 | ipr_fail_all_ops(ioa_cfg); |
7924 | |
7925 | if (ioa_cfg->sis64) { |
7926 | /* Set the adapter to the correct endian mode. */ |
7927 | writel(IPR_ENDIAN_SWAP_KEY, addr: ioa_cfg->regs.endian_swap_reg); |
7928 | readl(addr: ioa_cfg->regs.endian_swap_reg); |
7929 | } |
7930 | |
7931 | if (ioa_cfg->ioa_unit_checked) { |
7932 | if (ioa_cfg->sis64) { |
7933 | ipr_cmd->job_step = ipr_reset_get_unit_check_job; |
7934 | ipr_reset_start_timer(ipr_cmd, IPR_DUMP_DELAY_TIMEOUT); |
7935 | return IPR_RC_JOB_RETURN; |
7936 | } else { |
7937 | ioa_cfg->ioa_unit_checked = 0; |
7938 | ipr_get_unit_check_buffer(ioa_cfg); |
7939 | ipr_cmd->job_step = ipr_reset_alert; |
7940 | ipr_reset_start_timer(ipr_cmd, timeout: 0); |
7941 | return IPR_RC_JOB_RETURN; |
7942 | } |
7943 | } |
7944 | |
7945 | if (ioa_cfg->in_ioa_bringdown) { |
7946 | ipr_cmd->job_step = ipr_ioa_bringdown_done; |
7947 | } else if (ioa_cfg->sdt_state == GET_DUMP) { |
7948 | ipr_cmd->job_step = ipr_dump_mailbox_wait; |
7949 | ipr_cmd->u.time_left = IPR_WAIT_FOR_MAILBOX; |
7950 | } else { |
7951 | ipr_cmd->job_step = ipr_reset_enable_ioa; |
7952 | } |
7953 | |
7954 | LEAVE; |
7955 | return IPR_RC_JOB_CONTINUE; |
7956 | } |
7957 | |
7958 | /** |
7959 | * ipr_reset_bist_done - BIST has completed on the adapter. |
7960 | * @ipr_cmd: ipr command struct |
7961 | * |
7962 | * Description: Unblock config space and resume the reset process. |
7963 | * |
7964 | * Return value: |
7965 | * IPR_RC_JOB_CONTINUE |
7966 | **/ |
7967 | static int ipr_reset_bist_done(struct ipr_cmnd *ipr_cmd) |
7968 | { |
7969 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; |
7970 | |
7971 | ENTER; |
7972 | if (ioa_cfg->cfg_locked) |
7973 | pci_cfg_access_unlock(dev: ioa_cfg->pdev); |
7974 | ioa_cfg->cfg_locked = 0; |
7975 | ipr_cmd->job_step = ipr_reset_restore_cfg_space; |
7976 | LEAVE; |
7977 | return IPR_RC_JOB_CONTINUE; |
7978 | } |
7979 | |
7980 | /** |
7981 | * ipr_reset_start_bist - Run BIST on the adapter. |
7982 | * @ipr_cmd: ipr command struct |
7983 | * |
7984 | * Description: This function runs BIST on the adapter, then delays 2 seconds. |
7985 | * |
7986 | * Return value: |
7987 | * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN |
7988 | **/ |
7989 | static int ipr_reset_start_bist(struct ipr_cmnd *ipr_cmd) |
7990 | { |
7991 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; |
7992 | int rc = PCIBIOS_SUCCESSFUL; |
7993 | |
7994 | ENTER; |
7995 | if (ioa_cfg->ipr_chip->bist_method == IPR_MMIO) |
7996 | writel(IPR_UPROCI_SIS64_START_BIST, |
7997 | addr: ioa_cfg->regs.set_uproc_interrupt_reg32); |
7998 | else |
7999 | rc = pci_write_config_byte(dev: ioa_cfg->pdev, PCI_BIST, PCI_BIST_START); |
8000 | |
8001 | if (rc == PCIBIOS_SUCCESSFUL) { |
8002 | ipr_cmd->job_step = ipr_reset_bist_done; |
8003 | ipr_reset_start_timer(ipr_cmd, IPR_WAIT_FOR_BIST_TIMEOUT); |
8004 | rc = IPR_RC_JOB_RETURN; |
8005 | } else { |
8006 | if (ioa_cfg->cfg_locked) |
8007 | pci_cfg_access_unlock(dev: ipr_cmd->ioa_cfg->pdev); |
8008 | ioa_cfg->cfg_locked = 0; |
8009 | ipr_cmd->s.ioasa.hdr.ioasc = cpu_to_be32(IPR_IOASC_PCI_ACCESS_ERROR); |
8010 | rc = IPR_RC_JOB_CONTINUE; |
8011 | } |
8012 | |
8013 | LEAVE; |
8014 | return rc; |
8015 | } |
8016 | |
8017 | /** |
8018 | * ipr_reset_slot_reset_done - Clear PCI reset to the adapter |
8019 | * @ipr_cmd: ipr command struct |
8020 | * |
8021 | * Description: This clears PCI reset to the adapter and delays two seconds. |
8022 | * |
8023 | * Return value: |
8024 | * IPR_RC_JOB_RETURN |
8025 | **/ |
8026 | static int ipr_reset_slot_reset_done(struct ipr_cmnd *ipr_cmd) |
8027 | { |
8028 | ENTER; |
8029 | ipr_cmd->job_step = ipr_reset_bist_done; |
8030 | ipr_reset_start_timer(ipr_cmd, IPR_WAIT_FOR_BIST_TIMEOUT); |
8031 | LEAVE; |
8032 | return IPR_RC_JOB_RETURN; |
8033 | } |
8034 | |
8035 | /** |
8036 | * ipr_reset_reset_work - Pulse a PCIe fundamental reset |
8037 | * @work: work struct |
8038 | * |
8039 | * Description: This pulses warm reset to a slot. |
8040 | * |
8041 | **/ |
8042 | static void ipr_reset_reset_work(struct work_struct *work) |
8043 | { |
8044 | struct ipr_cmnd *ipr_cmd = container_of(work, struct ipr_cmnd, work); |
8045 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; |
8046 | struct pci_dev *pdev = ioa_cfg->pdev; |
8047 | unsigned long lock_flags = 0; |
8048 | |
8049 | ENTER; |
8050 | pci_set_pcie_reset_state(dev: pdev, state: pcie_warm_reset); |
8051 | msleep(msecs: jiffies_to_msecs(IPR_PCI_RESET_TIMEOUT)); |
8052 | pci_set_pcie_reset_state(dev: pdev, state: pcie_deassert_reset); |
8053 | |
8054 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); |
8055 | if (ioa_cfg->reset_cmd == ipr_cmd) |
8056 | ipr_reset_ioa_job(ipr_cmd); |
8057 | spin_unlock_irqrestore(lock: ioa_cfg->host->host_lock, flags: lock_flags); |
8058 | LEAVE; |
8059 | } |
8060 | |
8061 | /** |
8062 | * ipr_reset_slot_reset - Reset the PCI slot of the adapter. |
8063 | * @ipr_cmd: ipr command struct |
8064 | * |
8065 | * Description: This asserts PCI reset to the adapter. |
8066 | * |
8067 | * Return value: |
8068 | * IPR_RC_JOB_RETURN |
8069 | **/ |
8070 | static int ipr_reset_slot_reset(struct ipr_cmnd *ipr_cmd) |
8071 | { |
8072 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; |
8073 | |
8074 | ENTER; |
8075 | INIT_WORK(&ipr_cmd->work, ipr_reset_reset_work); |
8076 | queue_work(wq: ioa_cfg->reset_work_q, work: &ipr_cmd->work); |
8077 | ipr_cmd->job_step = ipr_reset_slot_reset_done; |
8078 | LEAVE; |
8079 | return IPR_RC_JOB_RETURN; |
8080 | } |
8081 | |
8082 | /** |
8083 | * ipr_reset_block_config_access_wait - Wait for permission to block config access |
8084 | * @ipr_cmd: ipr command struct |
8085 | * |
8086 | * Description: This attempts to block config access to the IOA. |
8087 | * |
8088 | * Return value: |
8089 | * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN |
8090 | **/ |
8091 | static int ipr_reset_block_config_access_wait(struct ipr_cmnd *ipr_cmd) |
8092 | { |
8093 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; |
8094 | int rc = IPR_RC_JOB_CONTINUE; |
8095 | |
8096 | if (pci_cfg_access_trylock(dev: ioa_cfg->pdev)) { |
8097 | ioa_cfg->cfg_locked = 1; |
8098 | ipr_cmd->job_step = ioa_cfg->reset; |
8099 | } else { |
8100 | if (ipr_cmd->u.time_left) { |
8101 | rc = IPR_RC_JOB_RETURN; |
8102 | ipr_cmd->u.time_left -= IPR_CHECK_FOR_RESET_TIMEOUT; |
8103 | ipr_reset_start_timer(ipr_cmd, |
8104 | IPR_CHECK_FOR_RESET_TIMEOUT); |
8105 | } else { |
8106 | ipr_cmd->job_step = ioa_cfg->reset; |
8107 | dev_err(&ioa_cfg->pdev->dev, |
8108 | "Timed out waiting to lock config access. Resetting anyway.\n" ); |
8109 | } |
8110 | } |
8111 | |
8112 | return rc; |
8113 | } |
8114 | |
8115 | /** |
8116 | * ipr_reset_block_config_access - Block config access to the IOA |
8117 | * @ipr_cmd: ipr command struct |
8118 | * |
8119 | * Description: This attempts to block config access to the IOA |
8120 | * |
8121 | * Return value: |
8122 | * IPR_RC_JOB_CONTINUE |
8123 | **/ |
8124 | static int ipr_reset_block_config_access(struct ipr_cmnd *ipr_cmd) |
8125 | { |
8126 | ipr_cmd->ioa_cfg->cfg_locked = 0; |
8127 | ipr_cmd->job_step = ipr_reset_block_config_access_wait; |
8128 | ipr_cmd->u.time_left = IPR_WAIT_FOR_RESET_TIMEOUT; |
8129 | return IPR_RC_JOB_CONTINUE; |
8130 | } |
8131 | |
8132 | /** |
8133 | * ipr_reset_allowed - Query whether or not IOA can be reset |
8134 | * @ioa_cfg: ioa config struct |
8135 | * |
8136 | * Return value: |
8137 | * 0 if reset not allowed / non-zero if reset is allowed |
8138 | **/ |
8139 | static int ipr_reset_allowed(struct ipr_ioa_cfg *ioa_cfg) |
8140 | { |
8141 | volatile u32 temp_reg; |
8142 | |
8143 | temp_reg = readl(addr: ioa_cfg->regs.sense_interrupt_reg); |
8144 | return ((temp_reg & IPR_PCII_CRITICAL_OPERATION) == 0); |
8145 | } |
8146 | |
8147 | /** |
8148 | * ipr_reset_wait_to_start_bist - Wait for permission to reset IOA. |
8149 | * @ipr_cmd: ipr command struct |
8150 | * |
8151 | * Description: This function waits for adapter permission to run BIST, |
8152 | * then runs BIST. If the adapter does not give permission after a |
8153 | * reasonable time, we will reset the adapter anyway. The impact of |
8154 | * resetting the adapter without warning the adapter is the risk of |
8155 | * losing the persistent error log on the adapter. If the adapter is |
8156 | * reset while it is writing to the flash on the adapter, the flash |
8157 | * segment will have bad ECC and be zeroed. |
8158 | * |
8159 | * Return value: |
8160 | * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN |
8161 | **/ |
8162 | static int ipr_reset_wait_to_start_bist(struct ipr_cmnd *ipr_cmd) |
8163 | { |
8164 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; |
8165 | int rc = IPR_RC_JOB_RETURN; |
8166 | |
8167 | if (!ipr_reset_allowed(ioa_cfg) && ipr_cmd->u.time_left) { |
8168 | ipr_cmd->u.time_left -= IPR_CHECK_FOR_RESET_TIMEOUT; |
8169 | ipr_reset_start_timer(ipr_cmd, IPR_CHECK_FOR_RESET_TIMEOUT); |
8170 | } else { |
8171 | ipr_cmd->job_step = ipr_reset_block_config_access; |
8172 | rc = IPR_RC_JOB_CONTINUE; |
8173 | } |
8174 | |
8175 | return rc; |
8176 | } |
8177 | |
8178 | /** |
8179 | * ipr_reset_alert - Alert the adapter of a pending reset |
8180 | * @ipr_cmd: ipr command struct |
8181 | * |
8182 | * Description: This function alerts the adapter that it will be reset. |
8183 | * If memory space is not currently enabled, proceed directly |
8184 | * to running BIST on the adapter. The timer must always be started |
8185 | * so we guarantee we do not run BIST from ipr_isr. |
8186 | * |
8187 | * Return value: |
8188 | * IPR_RC_JOB_RETURN |
8189 | **/ |
8190 | static int ipr_reset_alert(struct ipr_cmnd *ipr_cmd) |
8191 | { |
8192 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; |
8193 | u16 cmd_reg; |
8194 | int rc; |
8195 | |
8196 | ENTER; |
8197 | rc = pci_read_config_word(dev: ioa_cfg->pdev, PCI_COMMAND, val: &cmd_reg); |
8198 | |
8199 | if ((rc == PCIBIOS_SUCCESSFUL) && (cmd_reg & PCI_COMMAND_MEMORY)) { |
8200 | ipr_mask_and_clear_interrupts(ioa_cfg, clr_ints: ~0); |
8201 | writel(IPR_UPROCI_RESET_ALERT, addr: ioa_cfg->regs.set_uproc_interrupt_reg32); |
8202 | ipr_cmd->job_step = ipr_reset_wait_to_start_bist; |
8203 | } else { |
8204 | ipr_cmd->job_step = ipr_reset_block_config_access; |
8205 | } |
8206 | |
8207 | ipr_cmd->u.time_left = IPR_WAIT_FOR_RESET_TIMEOUT; |
8208 | ipr_reset_start_timer(ipr_cmd, IPR_CHECK_FOR_RESET_TIMEOUT); |
8209 | |
8210 | LEAVE; |
8211 | return IPR_RC_JOB_RETURN; |
8212 | } |
8213 | |
8214 | /** |
8215 | * ipr_reset_quiesce_done - Complete IOA disconnect |
8216 | * @ipr_cmd: ipr command struct |
8217 | * |
8218 | * Description: Freeze the adapter to complete quiesce processing |
8219 | * |
8220 | * Return value: |
8221 | * IPR_RC_JOB_CONTINUE |
8222 | **/ |
8223 | static int ipr_reset_quiesce_done(struct ipr_cmnd *ipr_cmd) |
8224 | { |
8225 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; |
8226 | |
8227 | ENTER; |
8228 | ipr_cmd->job_step = ipr_ioa_bringdown_done; |
8229 | ipr_mask_and_clear_interrupts(ioa_cfg, clr_ints: ~IPR_PCII_IOA_TRANS_TO_OPER); |
8230 | LEAVE; |
8231 | return IPR_RC_JOB_CONTINUE; |
8232 | } |
8233 | |
8234 | /** |
8235 | * ipr_reset_cancel_hcam_done - Check for outstanding commands |
8236 | * @ipr_cmd: ipr command struct |
8237 | * |
8238 | * Description: Ensure nothing is outstanding to the IOA and |
8239 | * proceed with IOA disconnect. Otherwise reset the IOA. |
8240 | * |
8241 | * Return value: |
8242 | * IPR_RC_JOB_RETURN / IPR_RC_JOB_CONTINUE |
8243 | **/ |
8244 | static int ipr_reset_cancel_hcam_done(struct ipr_cmnd *ipr_cmd) |
8245 | { |
8246 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; |
8247 | struct ipr_cmnd *loop_cmd; |
8248 | struct ipr_hrr_queue *hrrq; |
8249 | int rc = IPR_RC_JOB_CONTINUE; |
8250 | int count = 0; |
8251 | |
8252 | ENTER; |
8253 | ipr_cmd->job_step = ipr_reset_quiesce_done; |
8254 | |
8255 | for_each_hrrq(hrrq, ioa_cfg) { |
8256 | spin_lock(lock: &hrrq->_lock); |
8257 | list_for_each_entry(loop_cmd, &hrrq->hrrq_pending_q, queue) { |
8258 | count++; |
8259 | ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_NONE); |
8260 | list_add_tail(new: &ipr_cmd->queue, head: &ipr_cmd->hrrq->hrrq_free_q); |
8261 | rc = IPR_RC_JOB_RETURN; |
8262 | break; |
8263 | } |
8264 | spin_unlock(lock: &hrrq->_lock); |
8265 | |
8266 | if (count) |
8267 | break; |
8268 | } |
8269 | |
8270 | LEAVE; |
8271 | return rc; |
8272 | } |
8273 | |
8274 | /** |
8275 | * ipr_reset_cancel_hcam - Cancel outstanding HCAMs |
8276 | * @ipr_cmd: ipr command struct |
8277 | * |
8278 | * Description: Cancel any oustanding HCAMs to the IOA. |
8279 | * |
8280 | * Return value: |
8281 | * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN |
8282 | **/ |
8283 | static int ipr_reset_cancel_hcam(struct ipr_cmnd *ipr_cmd) |
8284 | { |
8285 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; |
8286 | int rc = IPR_RC_JOB_CONTINUE; |
8287 | struct ipr_cmd_pkt *cmd_pkt; |
8288 | struct ipr_cmnd *hcam_cmd; |
8289 | struct ipr_hrr_queue *hrrq = &ioa_cfg->hrrq[IPR_INIT_HRRQ]; |
8290 | |
8291 | ENTER; |
8292 | ipr_cmd->job_step = ipr_reset_cancel_hcam_done; |
8293 | |
8294 | if (!hrrq->ioa_is_dead) { |
8295 | if (!list_empty(head: &ioa_cfg->hostrcb_pending_q)) { |
8296 | list_for_each_entry(hcam_cmd, &hrrq->hrrq_pending_q, queue) { |
8297 | if (hcam_cmd->ioarcb.cmd_pkt.cdb[0] != IPR_HOST_CONTROLLED_ASYNC) |
8298 | continue; |
8299 | |
8300 | ipr_cmd->ioarcb.res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE); |
8301 | ipr_cmd->ioarcb.cmd_pkt.request_type = IPR_RQTYPE_IOACMD; |
8302 | cmd_pkt = &ipr_cmd->ioarcb.cmd_pkt; |
8303 | cmd_pkt->request_type = IPR_RQTYPE_IOACMD; |
8304 | cmd_pkt->cdb[0] = IPR_CANCEL_REQUEST; |
8305 | cmd_pkt->cdb[1] = IPR_CANCEL_64BIT_IOARCB; |
8306 | cmd_pkt->cdb[10] = ((u64) hcam_cmd->dma_addr >> 56) & 0xff; |
8307 | cmd_pkt->cdb[11] = ((u64) hcam_cmd->dma_addr >> 48) & 0xff; |
8308 | cmd_pkt->cdb[12] = ((u64) hcam_cmd->dma_addr >> 40) & 0xff; |
8309 | cmd_pkt->cdb[13] = ((u64) hcam_cmd->dma_addr >> 32) & 0xff; |
8310 | cmd_pkt->cdb[2] = ((u64) hcam_cmd->dma_addr >> 24) & 0xff; |
8311 | cmd_pkt->cdb[3] = ((u64) hcam_cmd->dma_addr >> 16) & 0xff; |
8312 | cmd_pkt->cdb[4] = ((u64) hcam_cmd->dma_addr >> 8) & 0xff; |
8313 | cmd_pkt->cdb[5] = ((u64) hcam_cmd->dma_addr) & 0xff; |
8314 | |
8315 | ipr_do_req(ipr_cmd, done: ipr_reset_ioa_job, timeout_func: ipr_timeout, |
8316 | IPR_CANCEL_TIMEOUT); |
8317 | |
8318 | rc = IPR_RC_JOB_RETURN; |
8319 | ipr_cmd->job_step = ipr_reset_cancel_hcam; |
8320 | break; |
8321 | } |
8322 | } |
8323 | } else |
8324 | ipr_cmd->job_step = ipr_reset_alert; |
8325 | |
8326 | LEAVE; |
8327 | return rc; |
8328 | } |
8329 | |
8330 | /** |
8331 | * ipr_reset_ucode_download_done - Microcode download completion |
8332 | * @ipr_cmd: ipr command struct |
8333 | * |
8334 | * Description: This function unmaps the microcode download buffer. |
8335 | * |
8336 | * Return value: |
8337 | * IPR_RC_JOB_CONTINUE |
8338 | **/ |
8339 | static int ipr_reset_ucode_download_done(struct ipr_cmnd *ipr_cmd) |
8340 | { |
8341 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; |
8342 | struct ipr_sglist *sglist = ioa_cfg->ucode_sglist; |
8343 | |
8344 | dma_unmap_sg(&ioa_cfg->pdev->dev, sglist->scatterlist, |
8345 | sglist->num_sg, DMA_TO_DEVICE); |
8346 | |
8347 | ipr_cmd->job_step = ipr_reset_alert; |
8348 | return IPR_RC_JOB_CONTINUE; |
8349 | } |
8350 | |
8351 | /** |
8352 | * ipr_reset_ucode_download - Download microcode to the adapter |
8353 | * @ipr_cmd: ipr command struct |
8354 | * |
8355 | * Description: This function checks to see if it there is microcode |
8356 | * to download to the adapter. If there is, a download is performed. |
8357 | * |
8358 | * Return value: |
8359 | * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN |
8360 | **/ |
8361 | static int ipr_reset_ucode_download(struct ipr_cmnd *ipr_cmd) |
8362 | { |
8363 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; |
8364 | struct ipr_sglist *sglist = ioa_cfg->ucode_sglist; |
8365 | |
8366 | ENTER; |
8367 | ipr_cmd->job_step = ipr_reset_alert; |
8368 | |
8369 | if (!sglist) |
8370 | return IPR_RC_JOB_CONTINUE; |
8371 | |
8372 | ipr_cmd->ioarcb.res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE); |
8373 | ipr_cmd->ioarcb.cmd_pkt.request_type = IPR_RQTYPE_SCSICDB; |
8374 | ipr_cmd->ioarcb.cmd_pkt.cdb[0] = WRITE_BUFFER; |
8375 | ipr_cmd->ioarcb.cmd_pkt.cdb[1] = IPR_WR_BUF_DOWNLOAD_AND_SAVE; |
8376 | ipr_cmd->ioarcb.cmd_pkt.cdb[6] = (sglist->buffer_len & 0xff0000) >> 16; |
8377 | ipr_cmd->ioarcb.cmd_pkt.cdb[7] = (sglist->buffer_len & 0x00ff00) >> 8; |
8378 | ipr_cmd->ioarcb.cmd_pkt.cdb[8] = sglist->buffer_len & 0x0000ff; |
8379 | |
8380 | if (ioa_cfg->sis64) |
8381 | ipr_build_ucode_ioadl64(ipr_cmd, sglist); |
8382 | else |
8383 | ipr_build_ucode_ioadl(ipr_cmd, sglist); |
8384 | ipr_cmd->job_step = ipr_reset_ucode_download_done; |
8385 | |
8386 | ipr_do_req(ipr_cmd, done: ipr_reset_ioa_job, timeout_func: ipr_timeout, |
8387 | IPR_WRITE_BUFFER_TIMEOUT); |
8388 | |
8389 | LEAVE; |
8390 | return IPR_RC_JOB_RETURN; |
8391 | } |
8392 | |
8393 | /** |
8394 | * ipr_reset_shutdown_ioa - Shutdown the adapter |
8395 | * @ipr_cmd: ipr command struct |
8396 | * |
8397 | * Description: This function issues an adapter shutdown of the |
8398 | * specified type to the specified adapter as part of the |
8399 | * adapter reset job. |
8400 | * |
8401 | * Return value: |
8402 | * IPR_RC_JOB_CONTINUE / IPR_RC_JOB_RETURN |
8403 | **/ |
8404 | static int ipr_reset_shutdown_ioa(struct ipr_cmnd *ipr_cmd) |
8405 | { |
8406 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; |
8407 | enum ipr_shutdown_type shutdown_type = ipr_cmd->u.shutdown_type; |
8408 | unsigned long timeout; |
8409 | int rc = IPR_RC_JOB_CONTINUE; |
8410 | |
8411 | ENTER; |
8412 | if (shutdown_type == IPR_SHUTDOWN_QUIESCE) |
8413 | ipr_cmd->job_step = ipr_reset_cancel_hcam; |
8414 | else if (shutdown_type != IPR_SHUTDOWN_NONE && |
8415 | !ioa_cfg->hrrq[IPR_INIT_HRRQ].ioa_is_dead) { |
8416 | ipr_cmd->ioarcb.res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE); |
8417 | ipr_cmd->ioarcb.cmd_pkt.request_type = IPR_RQTYPE_IOACMD; |
8418 | ipr_cmd->ioarcb.cmd_pkt.cdb[0] = IPR_IOA_SHUTDOWN; |
8419 | ipr_cmd->ioarcb.cmd_pkt.cdb[1] = shutdown_type; |
8420 | |
8421 | if (shutdown_type == IPR_SHUTDOWN_NORMAL) |
8422 | timeout = IPR_SHUTDOWN_TIMEOUT; |
8423 | else if (shutdown_type == IPR_SHUTDOWN_PREPARE_FOR_NORMAL) |
8424 | timeout = IPR_INTERNAL_TIMEOUT; |
8425 | else if (ioa_cfg->dual_raid && ipr_dual_ioa_raid) |
8426 | timeout = IPR_DUAL_IOA_ABBR_SHUTDOWN_TO; |
8427 | else |
8428 | timeout = IPR_ABBREV_SHUTDOWN_TIMEOUT; |
8429 | |
8430 | ipr_do_req(ipr_cmd, done: ipr_reset_ioa_job, timeout_func: ipr_timeout, timeout); |
8431 | |
8432 | rc = IPR_RC_JOB_RETURN; |
8433 | ipr_cmd->job_step = ipr_reset_ucode_download; |
8434 | } else |
8435 | ipr_cmd->job_step = ipr_reset_alert; |
8436 | |
8437 | LEAVE; |
8438 | return rc; |
8439 | } |
8440 | |
8441 | /** |
8442 | * ipr_reset_ioa_job - Adapter reset job |
8443 | * @ipr_cmd: ipr command struct |
8444 | * |
8445 | * Description: This function is the job router for the adapter reset job. |
8446 | * |
8447 | * Return value: |
8448 | * none |
8449 | **/ |
8450 | static void ipr_reset_ioa_job(struct ipr_cmnd *ipr_cmd) |
8451 | { |
8452 | u32 rc, ioasc; |
8453 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; |
8454 | |
8455 | do { |
8456 | ioasc = be32_to_cpu(ipr_cmd->s.ioasa.hdr.ioasc); |
8457 | |
8458 | if (ioa_cfg->reset_cmd != ipr_cmd) { |
8459 | /* |
8460 | * We are doing nested adapter resets and this is |
8461 | * not the current reset job. |
8462 | */ |
8463 | list_add_tail(new: &ipr_cmd->queue, |
8464 | head: &ipr_cmd->hrrq->hrrq_free_q); |
8465 | return; |
8466 | } |
8467 | |
8468 | if (IPR_IOASC_SENSE_KEY(ioasc)) { |
8469 | rc = ipr_cmd->job_step_failed(ipr_cmd); |
8470 | if (rc == IPR_RC_JOB_RETURN) |
8471 | return; |
8472 | } |
8473 | |
8474 | ipr_reinit_ipr_cmnd(ipr_cmd); |
8475 | ipr_cmd->job_step_failed = ipr_reset_cmd_failed; |
8476 | rc = ipr_cmd->job_step(ipr_cmd); |
8477 | } while (rc == IPR_RC_JOB_CONTINUE); |
8478 | } |
8479 | |
8480 | /** |
8481 | * _ipr_initiate_ioa_reset - Initiate an adapter reset |
8482 | * @ioa_cfg: ioa config struct |
8483 | * @job_step: first job step of reset job |
8484 | * @shutdown_type: shutdown type |
8485 | * |
8486 | * Description: This function will initiate the reset of the given adapter |
8487 | * starting at the selected job step. |
8488 | * If the caller needs to wait on the completion of the reset, |
8489 | * the caller must sleep on the reset_wait_q. |
8490 | * |
8491 | * Return value: |
8492 | * none |
8493 | **/ |
8494 | static void _ipr_initiate_ioa_reset(struct ipr_ioa_cfg *ioa_cfg, |
8495 | int (*job_step) (struct ipr_cmnd *), |
8496 | enum ipr_shutdown_type shutdown_type) |
8497 | { |
8498 | struct ipr_cmnd *ipr_cmd; |
8499 | int i; |
8500 | |
8501 | ioa_cfg->in_reset_reload = 1; |
8502 | for (i = 0; i < ioa_cfg->hrrq_num; i++) { |
8503 | spin_lock(lock: &ioa_cfg->hrrq[i]._lock); |
8504 | ioa_cfg->hrrq[i].allow_cmds = 0; |
8505 | spin_unlock(lock: &ioa_cfg->hrrq[i]._lock); |
8506 | } |
8507 | wmb(); |
8508 | if (!ioa_cfg->hrrq[IPR_INIT_HRRQ].removing_ioa) { |
8509 | ioa_cfg->scsi_unblock = 0; |
8510 | ioa_cfg->scsi_blocked = 1; |
8511 | scsi_block_requests(ioa_cfg->host); |
8512 | } |
8513 | |
8514 | ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg); |
8515 | ioa_cfg->reset_cmd = ipr_cmd; |
8516 | ipr_cmd->job_step = job_step; |
8517 | ipr_cmd->u.shutdown_type = shutdown_type; |
8518 | |
8519 | ipr_reset_ioa_job(ipr_cmd); |
8520 | } |
8521 | |
8522 | /** |
8523 | * ipr_initiate_ioa_reset - Initiate an adapter reset |
8524 | * @ioa_cfg: ioa config struct |
8525 | * @shutdown_type: shutdown type |
8526 | * |
8527 | * Description: This function will initiate the reset of the given adapter. |
8528 | * If the caller needs to wait on the completion of the reset, |
8529 | * the caller must sleep on the reset_wait_q. |
8530 | * |
8531 | * Return value: |
8532 | * none |
8533 | **/ |
8534 | static void ipr_initiate_ioa_reset(struct ipr_ioa_cfg *ioa_cfg, |
8535 | enum ipr_shutdown_type shutdown_type) |
8536 | { |
8537 | int i; |
8538 | |
8539 | if (ioa_cfg->hrrq[IPR_INIT_HRRQ].ioa_is_dead) |
8540 | return; |
8541 | |
8542 | if (ioa_cfg->in_reset_reload) { |
8543 | if (ioa_cfg->sdt_state == GET_DUMP) |
8544 | ioa_cfg->sdt_state = WAIT_FOR_DUMP; |
8545 | else if (ioa_cfg->sdt_state == READ_DUMP) |
8546 | ioa_cfg->sdt_state = ABORT_DUMP; |
8547 | } |
8548 | |
8549 | if (ioa_cfg->reset_retries++ >= IPR_NUM_RESET_RELOAD_RETRIES) { |
8550 | dev_err(&ioa_cfg->pdev->dev, |
8551 | "IOA taken offline - error recovery failed\n" ); |
8552 | |
8553 | ioa_cfg->reset_retries = 0; |
8554 | for (i = 0; i < ioa_cfg->hrrq_num; i++) { |
8555 | spin_lock(lock: &ioa_cfg->hrrq[i]._lock); |
8556 | ioa_cfg->hrrq[i].ioa_is_dead = 1; |
8557 | spin_unlock(lock: &ioa_cfg->hrrq[i]._lock); |
8558 | } |
8559 | wmb(); |
8560 | |
8561 | if (ioa_cfg->in_ioa_bringdown) { |
8562 | ioa_cfg->reset_cmd = NULL; |
8563 | ioa_cfg->in_reset_reload = 0; |
8564 | ipr_fail_all_ops(ioa_cfg); |
8565 | wake_up_all(&ioa_cfg->reset_wait_q); |
8566 | |
8567 | if (!ioa_cfg->hrrq[IPR_INIT_HRRQ].removing_ioa) { |
8568 | ioa_cfg->scsi_unblock = 1; |
8569 | schedule_work(work: &ioa_cfg->work_q); |
8570 | } |
8571 | return; |
8572 | } else { |
8573 | ioa_cfg->in_ioa_bringdown = 1; |
8574 | shutdown_type = IPR_SHUTDOWN_NONE; |
8575 | } |
8576 | } |
8577 | |
8578 | _ipr_initiate_ioa_reset(ioa_cfg, job_step: ipr_reset_shutdown_ioa, |
8579 | shutdown_type); |
8580 | } |
8581 | |
8582 | /** |
8583 | * ipr_reset_freeze - Hold off all I/O activity |
8584 | * @ipr_cmd: ipr command struct |
8585 | * |
8586 | * Description: If the PCI slot is frozen, hold off all I/O |
8587 | * activity; then, as soon as the slot is available again, |
8588 | * initiate an adapter reset. |
8589 | */ |
8590 | static int ipr_reset_freeze(struct ipr_cmnd *ipr_cmd) |
8591 | { |
8592 | struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; |
8593 | int i; |
8594 | |
8595 | /* Disallow new interrupts, avoid loop */ |
8596 | for (i = 0; i < ioa_cfg->hrrq_num; i++) { |
8597 | spin_lock(lock: &ioa_cfg->hrrq[i]._lock); |
8598 | ioa_cfg->hrrq[i].allow_interrupts = 0; |
8599 | spin_unlock(lock: &ioa_cfg->hrrq[i]._lock); |
8600 | } |
8601 | wmb(); |
8602 | list_add_tail(new: &ipr_cmd->queue, head: &ipr_cmd->hrrq->hrrq_pending_q); |
8603 | ipr_cmd->done = ipr_reset_ioa_job; |
8604 | return IPR_RC_JOB_RETURN; |
8605 | } |
8606 | |
8607 | /** |
8608 | * ipr_pci_mmio_enabled - Called when MMIO has been re-enabled |
8609 | * @pdev: PCI device struct |
8610 | * |
8611 | * Description: This routine is called to tell us that the MMIO |
8612 | * access to the IOA has been restored |
8613 | */ |
8614 | static pci_ers_result_t ipr_pci_mmio_enabled(struct pci_dev *pdev) |
8615 | { |
8616 | unsigned long flags = 0; |
8617 | struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev); |
8618 | |
8619 | spin_lock_irqsave(ioa_cfg->host->host_lock, flags); |
8620 | if (!ioa_cfg->probe_done) |
8621 | pci_save_state(dev: pdev); |
8622 | spin_unlock_irqrestore(lock: ioa_cfg->host->host_lock, flags); |
8623 | return PCI_ERS_RESULT_NEED_RESET; |
8624 | } |
8625 | |
8626 | /** |
8627 | * ipr_pci_frozen - Called when slot has experienced a PCI bus error. |
8628 | * @pdev: PCI device struct |
8629 | * |
8630 | * Description: This routine is called to tell us that the PCI bus |
8631 | * is down. Can't do anything here, except put the device driver |
8632 | * into a holding pattern, waiting for the PCI bus to come back. |
8633 | */ |
8634 | static void ipr_pci_frozen(struct pci_dev *pdev) |
8635 | { |
8636 | unsigned long flags = 0; |
8637 | struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev); |
8638 | |
8639 | spin_lock_irqsave(ioa_cfg->host->host_lock, flags); |
8640 | if (ioa_cfg->probe_done) |
8641 | _ipr_initiate_ioa_reset(ioa_cfg, job_step: ipr_reset_freeze, shutdown_type: IPR_SHUTDOWN_NONE); |
8642 | spin_unlock_irqrestore(lock: ioa_cfg->host->host_lock, flags); |
8643 | } |
8644 | |
8645 | /** |
8646 | * ipr_pci_slot_reset - Called when PCI slot has been reset. |
8647 | * @pdev: PCI device struct |
8648 | * |
8649 | * Description: This routine is called by the pci error recovery |
8650 | * code after the PCI slot has been reset, just before we |
8651 | * should resume normal operations. |
8652 | */ |
8653 | static pci_ers_result_t ipr_pci_slot_reset(struct pci_dev *pdev) |
8654 | { |
8655 | unsigned long flags = 0; |
8656 | struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev); |
8657 | |
8658 | spin_lock_irqsave(ioa_cfg->host->host_lock, flags); |
8659 | if (ioa_cfg->probe_done) { |
8660 | if (ioa_cfg->needs_warm_reset) |
8661 | ipr_initiate_ioa_reset(ioa_cfg, shutdown_type: IPR_SHUTDOWN_NONE); |
8662 | else |
8663 | _ipr_initiate_ioa_reset(ioa_cfg, job_step: ipr_reset_restore_cfg_space, |
8664 | shutdown_type: IPR_SHUTDOWN_NONE); |
8665 | } else |
8666 | wake_up_all(&ioa_cfg->eeh_wait_q); |
8667 | spin_unlock_irqrestore(lock: ioa_cfg->host->host_lock, flags); |
8668 | return PCI_ERS_RESULT_RECOVERED; |
8669 | } |
8670 | |
8671 | /** |
8672 | * ipr_pci_perm_failure - Called when PCI slot is dead for good. |
8673 | * @pdev: PCI device struct |
8674 | * |
8675 | * Description: This routine is called when the PCI bus has |
8676 | * permanently failed. |
8677 | */ |
8678 | static void ipr_pci_perm_failure(struct pci_dev *pdev) |
8679 | { |
8680 | unsigned long flags = 0; |
8681 | struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev); |
8682 | int i; |
8683 | |
8684 | spin_lock_irqsave(ioa_cfg->host->host_lock, flags); |
8685 | if (ioa_cfg->probe_done) { |
8686 | if (ioa_cfg->sdt_state == WAIT_FOR_DUMP) |
8687 | ioa_cfg->sdt_state = ABORT_DUMP; |
8688 | ioa_cfg->reset_retries = IPR_NUM_RESET_RELOAD_RETRIES - 1; |
8689 | ioa_cfg->in_ioa_bringdown = 1; |
8690 | for (i = 0; i < ioa_cfg->hrrq_num; i++) { |
8691 | spin_lock(lock: &ioa_cfg->hrrq[i]._lock); |
8692 | ioa_cfg->hrrq[i].allow_cmds = 0; |
8693 | spin_unlock(lock: &ioa_cfg->hrrq[i]._lock); |
8694 | } |
8695 | wmb(); |
8696 | ipr_initiate_ioa_reset(ioa_cfg, shutdown_type: IPR_SHUTDOWN_NONE); |
8697 | } else |
8698 | wake_up_all(&ioa_cfg->eeh_wait_q); |
8699 | spin_unlock_irqrestore(lock: ioa_cfg->host->host_lock, flags); |
8700 | } |
8701 | |
8702 | /** |
8703 | * ipr_pci_error_detected - Called when a PCI error is detected. |
8704 | * @pdev: PCI device struct |
8705 | * @state: PCI channel state |
8706 | * |
8707 | * Description: Called when a PCI error is detected. |
8708 | * |
8709 | * Return value: |
8710 | * PCI_ERS_RESULT_NEED_RESET or PCI_ERS_RESULT_DISCONNECT |
8711 | */ |
8712 | static pci_ers_result_t ipr_pci_error_detected(struct pci_dev *pdev, |
8713 | pci_channel_state_t state) |
8714 | { |
8715 | switch (state) { |
8716 | case pci_channel_io_frozen: |
8717 | ipr_pci_frozen(pdev); |
8718 | return PCI_ERS_RESULT_CAN_RECOVER; |
8719 | case pci_channel_io_perm_failure: |
8720 | ipr_pci_perm_failure(pdev); |
8721 | return PCI_ERS_RESULT_DISCONNECT; |
8722 | default: |
8723 | break; |
8724 | } |
8725 | return PCI_ERS_RESULT_NEED_RESET; |
8726 | } |
8727 | |
8728 | /** |
8729 | * ipr_probe_ioa_part2 - Initializes IOAs found in ipr_probe_ioa(..) |
8730 | * @ioa_cfg: ioa cfg struct |
8731 | * |
8732 | * Description: This is the second phase of adapter initialization |
8733 | * This function takes care of initilizing the adapter to the point |
8734 | * where it can accept new commands. |
8735 | * Return value: |
8736 | * none |
8737 | **/ |
8738 | static void ipr_probe_ioa_part2(struct ipr_ioa_cfg *ioa_cfg) |
8739 | { |
8740 | unsigned long host_lock_flags = 0; |
8741 | |
8742 | ENTER; |
8743 | spin_lock_irqsave(ioa_cfg->host->host_lock, host_lock_flags); |
8744 | dev_dbg(&ioa_cfg->pdev->dev, "ioa_cfg adx: 0x%p\n" , ioa_cfg); |
8745 | ioa_cfg->probe_done = 1; |
8746 | if (ioa_cfg->needs_hard_reset) { |
8747 | ioa_cfg->needs_hard_reset = 0; |
8748 | ipr_initiate_ioa_reset(ioa_cfg, shutdown_type: IPR_SHUTDOWN_NONE); |
8749 | } else |
8750 | _ipr_initiate_ioa_reset(ioa_cfg, job_step: ipr_reset_enable_ioa, |
8751 | shutdown_type: IPR_SHUTDOWN_NONE); |
8752 | spin_unlock_irqrestore(lock: ioa_cfg->host->host_lock, flags: host_lock_flags); |
8753 | |
8754 | LEAVE; |
8755 | } |
8756 | |
8757 | /** |
8758 | * ipr_free_cmd_blks - Frees command blocks allocated for an adapter |
8759 | * @ioa_cfg: ioa config struct |
8760 | * |
8761 | * Return value: |
8762 | * none |
8763 | **/ |
8764 | static void ipr_free_cmd_blks(struct ipr_ioa_cfg *ioa_cfg) |
8765 | { |
8766 | int i; |
8767 | |
8768 | if (ioa_cfg->ipr_cmnd_list) { |
8769 | for (i = 0; i < IPR_NUM_CMD_BLKS; i++) { |
8770 | if (ioa_cfg->ipr_cmnd_list[i]) |
8771 | dma_pool_free(pool: ioa_cfg->ipr_cmd_pool, |
8772 | vaddr: ioa_cfg->ipr_cmnd_list[i], |
8773 | addr: ioa_cfg->ipr_cmnd_list_dma[i]); |
8774 | |
8775 | ioa_cfg->ipr_cmnd_list[i] = NULL; |
8776 | } |
8777 | } |
8778 | |
8779 | dma_pool_destroy(pool: ioa_cfg->ipr_cmd_pool); |
8780 | |
8781 | kfree(objp: ioa_cfg->ipr_cmnd_list); |
8782 | kfree(objp: ioa_cfg->ipr_cmnd_list_dma); |
8783 | ioa_cfg->ipr_cmnd_list = NULL; |
8784 | ioa_cfg->ipr_cmnd_list_dma = NULL; |
8785 | ioa_cfg->ipr_cmd_pool = NULL; |
8786 | } |
8787 | |
8788 | /** |
8789 | * ipr_free_mem - Frees memory allocated for an adapter |
8790 | * @ioa_cfg: ioa cfg struct |
8791 | * |
8792 | * Return value: |
8793 | * nothing |
8794 | **/ |
8795 | static void ipr_free_mem(struct ipr_ioa_cfg *ioa_cfg) |
8796 | { |
8797 | int i; |
8798 | |
8799 | kfree(objp: ioa_cfg->res_entries); |
8800 | dma_free_coherent(dev: &ioa_cfg->pdev->dev, size: sizeof(struct ipr_misc_cbs), |
8801 | cpu_addr: ioa_cfg->vpd_cbs, dma_handle: ioa_cfg->vpd_cbs_dma); |
8802 | ipr_free_cmd_blks(ioa_cfg); |
8803 | |
8804 | for (i = 0; i < ioa_cfg->hrrq_num; i++) |
8805 | dma_free_coherent(dev: &ioa_cfg->pdev->dev, |
8806 | size: sizeof(u32) * ioa_cfg->hrrq[i].size, |
8807 | cpu_addr: ioa_cfg->hrrq[i].host_rrq, |
8808 | dma_handle: ioa_cfg->hrrq[i].host_rrq_dma); |
8809 | |
8810 | dma_free_coherent(dev: &ioa_cfg->pdev->dev, size: ioa_cfg->cfg_table_size, |
8811 | cpu_addr: ioa_cfg->u.cfg_table, dma_handle: ioa_cfg->cfg_table_dma); |
8812 | |
8813 | for (i = 0; i < IPR_MAX_HCAMS; i++) { |
8814 | dma_free_coherent(dev: &ioa_cfg->pdev->dev, |
8815 | size: sizeof(struct ipr_hostrcb), |
8816 | cpu_addr: ioa_cfg->hostrcb[i], |
8817 | dma_handle: ioa_cfg->hostrcb_dma[i]); |
8818 | } |
8819 | |
8820 | ipr_free_dump(ioa_cfg); |
8821 | kfree(objp: ioa_cfg->trace); |
8822 | } |
8823 | |
8824 | /** |
8825 | * ipr_free_irqs - Free all allocated IRQs for the adapter. |
8826 | * @ioa_cfg: ipr cfg struct |
8827 | * |
8828 | * This function frees all allocated IRQs for the |
8829 | * specified adapter. |
8830 | * |
8831 | * Return value: |
8832 | * none |
8833 | **/ |
8834 | static void ipr_free_irqs(struct ipr_ioa_cfg *ioa_cfg) |
8835 | { |
8836 | struct pci_dev *pdev = ioa_cfg->pdev; |
8837 | int i; |
8838 | |
8839 | for (i = 0; i < ioa_cfg->nvectors; i++) |
8840 | free_irq(pci_irq_vector(dev: pdev, nr: i), &ioa_cfg->hrrq[i]); |
8841 | pci_free_irq_vectors(dev: pdev); |
8842 | } |
8843 | |
8844 | /** |
8845 | * ipr_free_all_resources - Free all allocated resources for an adapter. |
8846 | * @ioa_cfg: ioa config struct |
8847 | * |
8848 | * This function frees all allocated resources for the |
8849 | * specified adapter. |
8850 | * |
8851 | * Return value: |
8852 | * none |
8853 | **/ |
8854 | static void ipr_free_all_resources(struct ipr_ioa_cfg *ioa_cfg) |
8855 | { |
8856 | struct pci_dev *pdev = ioa_cfg->pdev; |
8857 | |
8858 | ENTER; |
8859 | ipr_free_irqs(ioa_cfg); |
8860 | if (ioa_cfg->reset_work_q) |
8861 | destroy_workqueue(wq: ioa_cfg->reset_work_q); |
8862 | iounmap(addr: ioa_cfg->hdw_dma_regs); |
8863 | pci_release_regions(pdev); |
8864 | ipr_free_mem(ioa_cfg); |
8865 | scsi_host_put(t: ioa_cfg->host); |
8866 | pci_disable_device(dev: pdev); |
8867 | LEAVE; |
8868 | } |
8869 | |
8870 | /** |
8871 | * ipr_alloc_cmd_blks - Allocate command blocks for an adapter |
8872 | * @ioa_cfg: ioa config struct |
8873 | * |
8874 | * Return value: |
8875 | * 0 on success / -ENOMEM on allocation failure |
8876 | **/ |
8877 | static int ipr_alloc_cmd_blks(struct ipr_ioa_cfg *ioa_cfg) |
8878 | { |
8879 | struct ipr_cmnd *ipr_cmd; |
8880 | struct ipr_ioarcb *ioarcb; |
8881 | dma_addr_t dma_addr; |
8882 | int i, entries_each_hrrq, hrrq_id = 0; |
8883 | |
8884 | ioa_cfg->ipr_cmd_pool = dma_pool_create(IPR_NAME, dev: &ioa_cfg->pdev->dev, |
8885 | size: sizeof(struct ipr_cmnd), align: 512, allocation: 0); |
8886 | |
8887 | if (!ioa_cfg->ipr_cmd_pool) |
8888 | return -ENOMEM; |
8889 | |
8890 | ioa_cfg->ipr_cmnd_list = kcalloc(IPR_NUM_CMD_BLKS, size: sizeof(struct ipr_cmnd *), GFP_KERNEL); |
8891 | ioa_cfg->ipr_cmnd_list_dma = kcalloc(IPR_NUM_CMD_BLKS, size: sizeof(dma_addr_t), GFP_KERNEL); |
8892 | |
8893 | if (!ioa_cfg->ipr_cmnd_list || !ioa_cfg->ipr_cmnd_list_dma) { |
8894 | ipr_free_cmd_blks(ioa_cfg); |
8895 | return -ENOMEM; |
8896 | } |
8897 | |
8898 | for (i = 0; i < ioa_cfg->hrrq_num; i++) { |
8899 | if (ioa_cfg->hrrq_num > 1) { |
8900 | if (i == 0) { |
8901 | entries_each_hrrq = IPR_NUM_INTERNAL_CMD_BLKS; |
8902 | ioa_cfg->hrrq[i].min_cmd_id = 0; |
8903 | ioa_cfg->hrrq[i].max_cmd_id = |
8904 | (entries_each_hrrq - 1); |
8905 | } else { |
8906 | entries_each_hrrq = |
8907 | IPR_NUM_BASE_CMD_BLKS/ |
8908 | (ioa_cfg->hrrq_num - 1); |
8909 | ioa_cfg->hrrq[i].min_cmd_id = |
8910 | IPR_NUM_INTERNAL_CMD_BLKS + |
8911 | (i - 1) * entries_each_hrrq; |
8912 | ioa_cfg->hrrq[i].max_cmd_id = |
8913 | (IPR_NUM_INTERNAL_CMD_BLKS + |
8914 | i * entries_each_hrrq - 1); |
8915 | } |
8916 | } else { |
8917 | entries_each_hrrq = IPR_NUM_CMD_BLKS; |
8918 | ioa_cfg->hrrq[i].min_cmd_id = 0; |
8919 | ioa_cfg->hrrq[i].max_cmd_id = (entries_each_hrrq - 1); |
8920 | } |
8921 | ioa_cfg->hrrq[i].size = entries_each_hrrq; |
8922 | } |
8923 | |
8924 | BUG_ON(ioa_cfg->hrrq_num == 0); |
8925 | |
8926 | i = IPR_NUM_CMD_BLKS - |
8927 | ioa_cfg->hrrq[ioa_cfg->hrrq_num - 1].max_cmd_id - 1; |
8928 | if (i > 0) { |
8929 | ioa_cfg->hrrq[ioa_cfg->hrrq_num - 1].size += i; |
8930 | ioa_cfg->hrrq[ioa_cfg->hrrq_num - 1].max_cmd_id += i; |
8931 | } |
8932 | |
8933 | for (i = 0; i < IPR_NUM_CMD_BLKS; i++) { |
8934 | ipr_cmd = dma_pool_zalloc(pool: ioa_cfg->ipr_cmd_pool, |
8935 | GFP_KERNEL, handle: &dma_addr); |
8936 | |
8937 | if (!ipr_cmd) { |
8938 | ipr_free_cmd_blks(ioa_cfg); |
8939 | return -ENOMEM; |
8940 | } |
8941 | |
8942 | ioa_cfg->ipr_cmnd_list[i] = ipr_cmd; |
8943 | ioa_cfg->ipr_cmnd_list_dma[i] = dma_addr; |
8944 | |
8945 | ioarcb = &ipr_cmd->ioarcb; |
8946 | ipr_cmd->dma_addr = dma_addr; |
8947 | if (ioa_cfg->sis64) |
8948 | ioarcb->a.ioarcb_host_pci_addr64 = cpu_to_be64(dma_addr); |
8949 | else |
8950 | ioarcb->a.ioarcb_host_pci_addr = cpu_to_be32(dma_addr); |
8951 | |
8952 | ioarcb->host_response_handle = cpu_to_be32(i << 2); |
8953 | if (ioa_cfg->sis64) { |
8954 | ioarcb->u.sis64_addr_data.data_ioadl_addr = |
8955 | cpu_to_be64(dma_addr + offsetof(struct ipr_cmnd, i.ioadl64)); |
8956 | ioarcb->u.sis64_addr_data.ioasa_host_pci_addr = |
8957 | cpu_to_be64(dma_addr + offsetof(struct ipr_cmnd, s.ioasa64)); |
8958 | } else { |
8959 | ioarcb->write_ioadl_addr = |
8960 | cpu_to_be32(dma_addr + offsetof(struct ipr_cmnd, i.ioadl)); |
8961 | ioarcb->read_ioadl_addr = ioarcb->write_ioadl_addr; |
8962 | ioarcb->ioasa_host_pci_addr = |
8963 | cpu_to_be32(dma_addr + offsetof(struct ipr_cmnd, s.ioasa)); |
8964 | } |
8965 | ioarcb->ioasa_len = cpu_to_be16(sizeof(struct ipr_ioasa)); |
8966 | ipr_cmd->cmd_index = i; |
8967 | ipr_cmd->ioa_cfg = ioa_cfg; |
8968 | ipr_cmd->sense_buffer_dma = dma_addr + |
8969 | offsetof(struct ipr_cmnd, sense_buffer); |
8970 | |
8971 | ipr_cmd->ioarcb.cmd_pkt.hrrq_id = hrrq_id; |
8972 | ipr_cmd->hrrq = &ioa_cfg->hrrq[hrrq_id]; |
8973 | list_add_tail(new: &ipr_cmd->queue, head: &ipr_cmd->hrrq->hrrq_free_q); |
8974 | if (i >= ioa_cfg->hrrq[hrrq_id].max_cmd_id) |
8975 | hrrq_id++; |
8976 | } |
8977 | |
8978 | return 0; |
8979 | } |
8980 | |
8981 | /** |
8982 | * ipr_alloc_mem - Allocate memory for an adapter |
8983 | * @ioa_cfg: ioa config struct |
8984 | * |
8985 | * Return value: |
8986 | * 0 on success / non-zero for error |
8987 | **/ |
8988 | static int ipr_alloc_mem(struct ipr_ioa_cfg *ioa_cfg) |
8989 | { |
8990 | struct pci_dev *pdev = ioa_cfg->pdev; |
8991 | int i, rc = -ENOMEM; |
8992 | |
8993 | ENTER; |
8994 | ioa_cfg->res_entries = kcalloc(n: ioa_cfg->max_devs_supported, |
8995 | size: sizeof(struct ipr_resource_entry), |
8996 | GFP_KERNEL); |
8997 | |
8998 | if (!ioa_cfg->res_entries) |
8999 | goto out; |
9000 | |
9001 | for (i = 0; i < ioa_cfg->max_devs_supported; i++) { |
9002 | list_add_tail(new: &ioa_cfg->res_entries[i].queue, head: &ioa_cfg->free_res_q); |
9003 | ioa_cfg->res_entries[i].ioa_cfg = ioa_cfg; |
9004 | } |
9005 | |
9006 | ioa_cfg->vpd_cbs = dma_alloc_coherent(dev: &pdev->dev, |
9007 | size: sizeof(struct ipr_misc_cbs), |
9008 | dma_handle: &ioa_cfg->vpd_cbs_dma, |
9009 | GFP_KERNEL); |
9010 | |
9011 | if (!ioa_cfg->vpd_cbs) |
9012 | goto out_free_res_entries; |
9013 | |
9014 | if (ipr_alloc_cmd_blks(ioa_cfg)) |
9015 | goto out_free_vpd_cbs; |
9016 | |
9017 | for (i = 0; i < ioa_cfg->hrrq_num; i++) { |
9018 | ioa_cfg->hrrq[i].host_rrq = dma_alloc_coherent(dev: &pdev->dev, |
9019 | size: sizeof(u32) * ioa_cfg->hrrq[i].size, |
9020 | dma_handle: &ioa_cfg->hrrq[i].host_rrq_dma, |
9021 | GFP_KERNEL); |
9022 | |
9023 | if (!ioa_cfg->hrrq[i].host_rrq) { |
9024 | while (--i >= 0) |
9025 | dma_free_coherent(dev: &pdev->dev, |
9026 | size: sizeof(u32) * ioa_cfg->hrrq[i].size, |
9027 | cpu_addr: ioa_cfg->hrrq[i].host_rrq, |
9028 | dma_handle: ioa_cfg->hrrq[i].host_rrq_dma); |
9029 | goto out_ipr_free_cmd_blocks; |
9030 | } |
9031 | ioa_cfg->hrrq[i].ioa_cfg = ioa_cfg; |
9032 | } |
9033 | |
9034 | ioa_cfg->u.cfg_table = dma_alloc_coherent(dev: &pdev->dev, |
9035 | size: ioa_cfg->cfg_table_size, |
9036 | dma_handle: &ioa_cfg->cfg_table_dma, |
9037 | GFP_KERNEL); |
9038 | |
9039 | if (!ioa_cfg->u.cfg_table) |
9040 | goto out_free_host_rrq; |
9041 | |
9042 | for (i = 0; i < IPR_MAX_HCAMS; i++) { |
9043 | ioa_cfg->hostrcb[i] = dma_alloc_coherent(dev: &pdev->dev, |
9044 | size: sizeof(struct ipr_hostrcb), |
9045 | dma_handle: &ioa_cfg->hostrcb_dma[i], |
9046 | GFP_KERNEL); |
9047 | |
9048 | if (!ioa_cfg->hostrcb[i]) |
9049 | goto out_free_hostrcb_dma; |
9050 | |
9051 | ioa_cfg->hostrcb[i]->hostrcb_dma = |
9052 | ioa_cfg->hostrcb_dma[i] + offsetof(struct ipr_hostrcb, hcam); |
9053 | ioa_cfg->hostrcb[i]->ioa_cfg = ioa_cfg; |
9054 | list_add_tail(new: &ioa_cfg->hostrcb[i]->queue, head: &ioa_cfg->hostrcb_free_q); |
9055 | } |
9056 | |
9057 | ioa_cfg->trace = kcalloc(IPR_NUM_TRACE_ENTRIES, |
9058 | size: sizeof(struct ipr_trace_entry), |
9059 | GFP_KERNEL); |
9060 | |
9061 | if (!ioa_cfg->trace) |
9062 | goto out_free_hostrcb_dma; |
9063 | |
9064 | rc = 0; |
9065 | out: |
9066 | LEAVE; |
9067 | return rc; |
9068 | |
9069 | out_free_hostrcb_dma: |
9070 | while (i-- > 0) { |
9071 | dma_free_coherent(dev: &pdev->dev, size: sizeof(struct ipr_hostrcb), |
9072 | cpu_addr: ioa_cfg->hostrcb[i], |
9073 | dma_handle: ioa_cfg->hostrcb_dma[i]); |
9074 | } |
9075 | dma_free_coherent(dev: &pdev->dev, size: ioa_cfg->cfg_table_size, |
9076 | cpu_addr: ioa_cfg->u.cfg_table, dma_handle: ioa_cfg->cfg_table_dma); |
9077 | out_free_host_rrq: |
9078 | for (i = 0; i < ioa_cfg->hrrq_num; i++) { |
9079 | dma_free_coherent(dev: &pdev->dev, |
9080 | size: sizeof(u32) * ioa_cfg->hrrq[i].size, |
9081 | cpu_addr: ioa_cfg->hrrq[i].host_rrq, |
9082 | dma_handle: ioa_cfg->hrrq[i].host_rrq_dma); |
9083 | } |
9084 | out_ipr_free_cmd_blocks: |
9085 | ipr_free_cmd_blks(ioa_cfg); |
9086 | out_free_vpd_cbs: |
9087 | dma_free_coherent(dev: &pdev->dev, size: sizeof(struct ipr_misc_cbs), |
9088 | cpu_addr: ioa_cfg->vpd_cbs, dma_handle: ioa_cfg->vpd_cbs_dma); |
9089 | out_free_res_entries: |
9090 | kfree(objp: ioa_cfg->res_entries); |
9091 | goto out; |
9092 | } |
9093 | |
9094 | /** |
9095 | * ipr_initialize_bus_attr - Initialize SCSI bus attributes to default values |
9096 | * @ioa_cfg: ioa config struct |
9097 | * |
9098 | * Return value: |
9099 | * none |
9100 | **/ |
9101 | static void ipr_initialize_bus_attr(struct ipr_ioa_cfg *ioa_cfg) |
9102 | { |
9103 | int i; |
9104 | |
9105 | for (i = 0; i < IPR_MAX_NUM_BUSES; i++) { |
9106 | ioa_cfg->bus_attr[i].bus = i; |
9107 | ioa_cfg->bus_attr[i].qas_enabled = 0; |
9108 | ioa_cfg->bus_attr[i].bus_width = IPR_DEFAULT_BUS_WIDTH; |
9109 | if (ipr_max_speed < ARRAY_SIZE(ipr_max_bus_speeds)) |
9110 | ioa_cfg->bus_attr[i].max_xfer_rate = ipr_max_bus_speeds[ipr_max_speed]; |
9111 | else |
9112 | ioa_cfg->bus_attr[i].max_xfer_rate = IPR_U160_SCSI_RATE; |
9113 | } |
9114 | } |
9115 | |
9116 | /** |
9117 | * ipr_init_regs - Initialize IOA registers |
9118 | * @ioa_cfg: ioa config struct |
9119 | * |
9120 | * Return value: |
9121 | * none |
9122 | **/ |
9123 | static void ipr_init_regs(struct ipr_ioa_cfg *ioa_cfg) |
9124 | { |
9125 | const struct ipr_interrupt_offsets *p; |
9126 | struct ipr_interrupts *t; |
9127 | void __iomem *base; |
9128 | |
9129 | p = &ioa_cfg->chip_cfg->regs; |
9130 | t = &ioa_cfg->regs; |
9131 | base = ioa_cfg->hdw_dma_regs; |
9132 | |
9133 | t->set_interrupt_mask_reg = base + p->set_interrupt_mask_reg; |
9134 | t->clr_interrupt_mask_reg = base + p->clr_interrupt_mask_reg; |
9135 | t->clr_interrupt_mask_reg32 = base + p->clr_interrupt_mask_reg32; |
9136 | t->sense_interrupt_mask_reg = base + p->sense_interrupt_mask_reg; |
9137 | t->sense_interrupt_mask_reg32 = base + p->sense_interrupt_mask_reg32; |
9138 | t->clr_interrupt_reg = base + p->clr_interrupt_reg; |
9139 | t->clr_interrupt_reg32 = base + p->clr_interrupt_reg32; |
9140 | t->sense_interrupt_reg = base + p->sense_interrupt_reg; |
9141 | t->sense_interrupt_reg32 = base + p->sense_interrupt_reg32; |
9142 | t->ioarrin_reg = base + p->ioarrin_reg; |
9143 | t->sense_uproc_interrupt_reg = base + p->sense_uproc_interrupt_reg; |
9144 | t->sense_uproc_interrupt_reg32 = base + p->sense_uproc_interrupt_reg32; |
9145 | t->set_uproc_interrupt_reg = base + p->set_uproc_interrupt_reg; |
9146 | t->set_uproc_interrupt_reg32 = base + p->set_uproc_interrupt_reg32; |
9147 | t->clr_uproc_interrupt_reg = base + p->clr_uproc_interrupt_reg; |
9148 | t->clr_uproc_interrupt_reg32 = base + p->clr_uproc_interrupt_reg32; |
9149 | |
9150 | if (ioa_cfg->sis64) { |
9151 | t->init_feedback_reg = base + p->init_feedback_reg; |
9152 | t->dump_addr_reg = base + p->dump_addr_reg; |
9153 | t->dump_data_reg = base + p->dump_data_reg; |
9154 | t->endian_swap_reg = base + p->endian_swap_reg; |
9155 | } |
9156 | } |
9157 | |
9158 | /** |
9159 | * ipr_init_ioa_cfg - Initialize IOA config struct |
9160 | * @ioa_cfg: ioa config struct |
9161 | * @host: scsi host struct |
9162 | * @pdev: PCI dev struct |
9163 | * |
9164 | * Return value: |
9165 | * none |
9166 | **/ |
9167 | static void ipr_init_ioa_cfg(struct ipr_ioa_cfg *ioa_cfg, |
9168 | struct Scsi_Host *host, struct pci_dev *pdev) |
9169 | { |
9170 | int i; |
9171 | |
9172 | ioa_cfg->host = host; |
9173 | ioa_cfg->pdev = pdev; |
9174 | ioa_cfg->log_level = ipr_log_level; |
9175 | ioa_cfg->doorbell = IPR_DOORBELL; |
9176 | sprintf(buf: ioa_cfg->eye_catcher, IPR_EYECATCHER); |
9177 | sprintf(buf: ioa_cfg->trace_start, IPR_TRACE_START_LABEL); |
9178 | sprintf(buf: ioa_cfg->cfg_table_start, IPR_CFG_TBL_START); |
9179 | sprintf(buf: ioa_cfg->resource_table_label, IPR_RES_TABLE_LABEL); |
9180 | sprintf(buf: ioa_cfg->ipr_hcam_label, IPR_HCAM_LABEL); |
9181 | sprintf(buf: ioa_cfg->ipr_cmd_label, IPR_CMD_LABEL); |
9182 | |
9183 | INIT_LIST_HEAD(list: &ioa_cfg->hostrcb_free_q); |
9184 | INIT_LIST_HEAD(list: &ioa_cfg->hostrcb_pending_q); |
9185 | INIT_LIST_HEAD(list: &ioa_cfg->hostrcb_report_q); |
9186 | INIT_LIST_HEAD(list: &ioa_cfg->free_res_q); |
9187 | INIT_LIST_HEAD(list: &ioa_cfg->used_res_q); |
9188 | INIT_WORK(&ioa_cfg->work_q, ipr_worker_thread); |
9189 | INIT_WORK(&ioa_cfg->scsi_add_work_q, ipr_add_remove_thread); |
9190 | init_waitqueue_head(&ioa_cfg->reset_wait_q); |
9191 | init_waitqueue_head(&ioa_cfg->msi_wait_q); |
9192 | init_waitqueue_head(&ioa_cfg->eeh_wait_q); |
9193 | ioa_cfg->sdt_state = INACTIVE; |
9194 | |
9195 | ipr_initialize_bus_attr(ioa_cfg); |
9196 | ioa_cfg->max_devs_supported = ipr_max_devs; |
9197 | |
9198 | if (ioa_cfg->sis64) { |
9199 | host->max_channel = IPR_MAX_SIS64_BUSES; |
9200 | host->max_id = IPR_MAX_SIS64_TARGETS_PER_BUS; |
9201 | host->max_lun = IPR_MAX_SIS64_LUNS_PER_TARGET; |
9202 | if (ipr_max_devs > IPR_MAX_SIS64_DEVS) |
9203 | ioa_cfg->max_devs_supported = IPR_MAX_SIS64_DEVS; |
9204 | ioa_cfg->cfg_table_size = (sizeof(struct ipr_config_table_hdr64) |
9205 | + ((sizeof(struct ipr_config_table_entry64) |
9206 | * ioa_cfg->max_devs_supported))); |
9207 | } else { |
9208 | host->max_channel = IPR_VSET_BUS; |
9209 | host->max_id = IPR_MAX_NUM_TARGETS_PER_BUS; |
9210 | host->max_lun = IPR_MAX_NUM_LUNS_PER_TARGET; |
9211 | if (ipr_max_devs > IPR_MAX_PHYSICAL_DEVS) |
9212 | ioa_cfg->max_devs_supported = IPR_MAX_PHYSICAL_DEVS; |
9213 | ioa_cfg->cfg_table_size = (sizeof(struct ipr_config_table_hdr) |
9214 | + ((sizeof(struct ipr_config_table_entry) |
9215 | * ioa_cfg->max_devs_supported))); |
9216 | } |
9217 | |
9218 | host->unique_id = host->host_no; |
9219 | host->max_cmd_len = IPR_MAX_CDB_LEN; |
9220 | host->can_queue = ioa_cfg->max_cmds; |
9221 | pci_set_drvdata(pdev, data: ioa_cfg); |
9222 | |
9223 | for (i = 0; i < ARRAY_SIZE(ioa_cfg->hrrq); i++) { |
9224 | INIT_LIST_HEAD(list: &ioa_cfg->hrrq[i].hrrq_free_q); |
9225 | INIT_LIST_HEAD(list: &ioa_cfg->hrrq[i].hrrq_pending_q); |
9226 | spin_lock_init(&ioa_cfg->hrrq[i]._lock); |
9227 | if (i == 0) |
9228 | ioa_cfg->hrrq[i].lock = ioa_cfg->host->host_lock; |
9229 | else |
9230 | ioa_cfg->hrrq[i].lock = &ioa_cfg->hrrq[i]._lock; |
9231 | } |
9232 | } |
9233 | |
9234 | /** |
9235 | * ipr_get_chip_info - Find adapter chip information |
9236 | * @dev_id: PCI device id struct |
9237 | * |
9238 | * Return value: |
9239 | * ptr to chip information on success / NULL on failure |
9240 | **/ |
9241 | static const struct ipr_chip_t * |
9242 | ipr_get_chip_info(const struct pci_device_id *dev_id) |
9243 | { |
9244 | int i; |
9245 | |
9246 | for (i = 0; i < ARRAY_SIZE(ipr_chip); i++) |
9247 | if (ipr_chip[i].vendor == dev_id->vendor && |
9248 | ipr_chip[i].device == dev_id->device) |
9249 | return &ipr_chip[i]; |
9250 | return NULL; |
9251 | } |
9252 | |
9253 | /** |
9254 | * ipr_wait_for_pci_err_recovery - Wait for any PCI error recovery to complete |
9255 | * during probe time |
9256 | * @ioa_cfg: ioa config struct |
9257 | * |
9258 | * Return value: |
9259 | * None |
9260 | **/ |
9261 | static void ipr_wait_for_pci_err_recovery(struct ipr_ioa_cfg *ioa_cfg) |
9262 | { |
9263 | struct pci_dev *pdev = ioa_cfg->pdev; |
9264 | |
9265 | if (pci_channel_offline(pdev)) { |
9266 | wait_event_timeout(ioa_cfg->eeh_wait_q, |
9267 | !pci_channel_offline(pdev), |
9268 | IPR_PCI_ERROR_RECOVERY_TIMEOUT); |
9269 | pci_restore_state(dev: pdev); |
9270 | } |
9271 | } |
9272 | |
9273 | static void name_msi_vectors(struct ipr_ioa_cfg *ioa_cfg) |
9274 | { |
9275 | int vec_idx, n = sizeof(ioa_cfg->vectors_info[0].desc) - 1; |
9276 | |
9277 | for (vec_idx = 0; vec_idx < ioa_cfg->nvectors; vec_idx++) { |
9278 | snprintf(buf: ioa_cfg->vectors_info[vec_idx].desc, size: n, |
9279 | fmt: "host%d-%d" , ioa_cfg->host->host_no, vec_idx); |
9280 | ioa_cfg->vectors_info[vec_idx]. |
9281 | desc[strlen(ioa_cfg->vectors_info[vec_idx].desc)] = 0; |
9282 | } |
9283 | } |
9284 | |
9285 | static int ipr_request_other_msi_irqs(struct ipr_ioa_cfg *ioa_cfg, |
9286 | struct pci_dev *pdev) |
9287 | { |
9288 | int i, rc; |
9289 | |
9290 | for (i = 1; i < ioa_cfg->nvectors; i++) { |
9291 | rc = request_irq(irq: pci_irq_vector(dev: pdev, nr: i), |
9292 | handler: ipr_isr_mhrrq, |
9293 | flags: 0, |
9294 | name: ioa_cfg->vectors_info[i].desc, |
9295 | dev: &ioa_cfg->hrrq[i]); |
9296 | if (rc) { |
9297 | while (--i > 0) |
9298 | free_irq(pci_irq_vector(dev: pdev, nr: i), |
9299 | &ioa_cfg->hrrq[i]); |
9300 | return rc; |
9301 | } |
9302 | } |
9303 | return 0; |
9304 | } |
9305 | |
9306 | /** |
9307 | * ipr_test_intr - Handle the interrupt generated in ipr_test_msi(). |
9308 | * @devp: PCI device struct |
9309 | * @irq: IRQ number |
9310 | * |
9311 | * Description: Simply set the msi_received flag to 1 indicating that |
9312 | * Message Signaled Interrupts are supported. |
9313 | * |
9314 | * Return value: |
9315 | * 0 on success / non-zero on failure |
9316 | **/ |
9317 | static irqreturn_t ipr_test_intr(int irq, void *devp) |
9318 | { |
9319 | struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)devp; |
9320 | unsigned long lock_flags = 0; |
9321 | |
9322 | dev_info(&ioa_cfg->pdev->dev, "Received IRQ : %d\n" , irq); |
9323 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); |
9324 | |
9325 | ioa_cfg->msi_received = 1; |
9326 | wake_up(&ioa_cfg->msi_wait_q); |
9327 | |
9328 | spin_unlock_irqrestore(lock: ioa_cfg->host->host_lock, flags: lock_flags); |
9329 | return IRQ_HANDLED; |
9330 | } |
9331 | |
9332 | /** |
9333 | * ipr_test_msi - Test for Message Signaled Interrupt (MSI) support. |
9334 | * @ioa_cfg: ioa config struct |
9335 | * @pdev: PCI device struct |
9336 | * |
9337 | * Description: This routine sets up and initiates a test interrupt to determine |
9338 | * if the interrupt is received via the ipr_test_intr() service routine. |
9339 | * If the tests fails, the driver will fall back to LSI. |
9340 | * |
9341 | * Return value: |
9342 | * 0 on success / non-zero on failure |
9343 | **/ |
9344 | static int ipr_test_msi(struct ipr_ioa_cfg *ioa_cfg, struct pci_dev *pdev) |
9345 | { |
9346 | int rc; |
9347 | unsigned long lock_flags = 0; |
9348 | int irq = pci_irq_vector(dev: pdev, nr: 0); |
9349 | |
9350 | ENTER; |
9351 | |
9352 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); |
9353 | init_waitqueue_head(&ioa_cfg->msi_wait_q); |
9354 | ioa_cfg->msi_received = 0; |
9355 | ipr_mask_and_clear_interrupts(ioa_cfg, clr_ints: ~IPR_PCII_IOA_TRANS_TO_OPER); |
9356 | writel(IPR_PCII_IO_DEBUG_ACKNOWLEDGE, addr: ioa_cfg->regs.clr_interrupt_mask_reg32); |
9357 | readl(addr: ioa_cfg->regs.sense_interrupt_mask_reg); |
9358 | spin_unlock_irqrestore(lock: ioa_cfg->host->host_lock, flags: lock_flags); |
9359 | |
9360 | rc = request_irq(irq, handler: ipr_test_intr, flags: 0, IPR_NAME, dev: ioa_cfg); |
9361 | if (rc) { |
9362 | dev_err(&pdev->dev, "Can not assign irq %d\n" , irq); |
9363 | return rc; |
9364 | } else if (ipr_debug) |
9365 | dev_info(&pdev->dev, "IRQ assigned: %d\n" , irq); |
9366 | |
9367 | writel(IPR_PCII_IO_DEBUG_ACKNOWLEDGE, addr: ioa_cfg->regs.sense_interrupt_reg32); |
9368 | readl(addr: ioa_cfg->regs.sense_interrupt_reg); |
9369 | wait_event_timeout(ioa_cfg->msi_wait_q, ioa_cfg->msi_received, HZ); |
9370 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); |
9371 | ipr_mask_and_clear_interrupts(ioa_cfg, clr_ints: ~IPR_PCII_IOA_TRANS_TO_OPER); |
9372 | |
9373 | if (!ioa_cfg->msi_received) { |
9374 | /* MSI test failed */ |
9375 | dev_info(&pdev->dev, "MSI test failed. Falling back to LSI.\n" ); |
9376 | rc = -EOPNOTSUPP; |
9377 | } else if (ipr_debug) |
9378 | dev_info(&pdev->dev, "MSI test succeeded.\n" ); |
9379 | |
9380 | spin_unlock_irqrestore(lock: ioa_cfg->host->host_lock, flags: lock_flags); |
9381 | |
9382 | free_irq(irq, ioa_cfg); |
9383 | |
9384 | LEAVE; |
9385 | |
9386 | return rc; |
9387 | } |
9388 | |
9389 | /* ipr_probe_ioa - Allocates memory and does first stage of initialization |
9390 | * @pdev: PCI device struct |
9391 | * @dev_id: PCI device id struct |
9392 | * |
9393 | * Return value: |
9394 | * 0 on success / non-zero on failure |
9395 | **/ |
9396 | static int ipr_probe_ioa(struct pci_dev *pdev, |
9397 | const struct pci_device_id *dev_id) |
9398 | { |
9399 | struct ipr_ioa_cfg *ioa_cfg; |
9400 | struct Scsi_Host *host; |
9401 | unsigned long ipr_regs_pci; |
9402 | void __iomem *ipr_regs; |
9403 | int rc = PCIBIOS_SUCCESSFUL; |
9404 | volatile u32 mask, uproc, interrupts; |
9405 | unsigned long lock_flags, driver_lock_flags; |
9406 | unsigned int irq_flag; |
9407 | |
9408 | ENTER; |
9409 | |
9410 | dev_info(&pdev->dev, "Found IOA with IRQ: %d\n" , pdev->irq); |
9411 | host = scsi_host_alloc(&driver_template, sizeof(*ioa_cfg)); |
9412 | |
9413 | if (!host) { |
9414 | dev_err(&pdev->dev, "call to scsi_host_alloc failed!\n" ); |
9415 | rc = -ENOMEM; |
9416 | goto out; |
9417 | } |
9418 | |
9419 | ioa_cfg = (struct ipr_ioa_cfg *)host->hostdata; |
9420 | memset(ioa_cfg, 0, sizeof(struct ipr_ioa_cfg)); |
9421 | |
9422 | ioa_cfg->ipr_chip = ipr_get_chip_info(dev_id); |
9423 | |
9424 | if (!ioa_cfg->ipr_chip) { |
9425 | dev_err(&pdev->dev, "Unknown adapter chipset 0x%04X 0x%04X\n" , |
9426 | dev_id->vendor, dev_id->device); |
9427 | goto out_scsi_host_put; |
9428 | } |
9429 | |
9430 | /* set SIS 32 or SIS 64 */ |
9431 | ioa_cfg->sis64 = ioa_cfg->ipr_chip->sis_type == IPR_SIS64 ? 1 : 0; |
9432 | ioa_cfg->chip_cfg = ioa_cfg->ipr_chip->cfg; |
9433 | ioa_cfg->clear_isr = ioa_cfg->chip_cfg->clear_isr; |
9434 | ioa_cfg->max_cmds = ioa_cfg->chip_cfg->max_cmds; |
9435 | |
9436 | if (ipr_transop_timeout) |
9437 | ioa_cfg->transop_timeout = ipr_transop_timeout; |
9438 | else if (dev_id->driver_data & IPR_USE_LONG_TRANSOP_TIMEOUT) |
9439 | ioa_cfg->transop_timeout = IPR_LONG_OPERATIONAL_TIMEOUT; |
9440 | else |
9441 | ioa_cfg->transop_timeout = IPR_OPERATIONAL_TIMEOUT; |
9442 | |
9443 | ioa_cfg->revid = pdev->revision; |
9444 | |
9445 | ipr_init_ioa_cfg(ioa_cfg, host, pdev); |
9446 | |
9447 | ipr_regs_pci = pci_resource_start(pdev, 0); |
9448 | |
9449 | rc = pci_request_regions(pdev, IPR_NAME); |
9450 | if (rc < 0) { |
9451 | dev_err(&pdev->dev, |
9452 | "Couldn't register memory range of registers\n" ); |
9453 | goto out_scsi_host_put; |
9454 | } |
9455 | |
9456 | rc = pci_enable_device(dev: pdev); |
9457 | |
9458 | if (rc || pci_channel_offline(pdev)) { |
9459 | if (pci_channel_offline(pdev)) { |
9460 | ipr_wait_for_pci_err_recovery(ioa_cfg); |
9461 | rc = pci_enable_device(dev: pdev); |
9462 | } |
9463 | |
9464 | if (rc) { |
9465 | dev_err(&pdev->dev, "Cannot enable adapter\n" ); |
9466 | ipr_wait_for_pci_err_recovery(ioa_cfg); |
9467 | goto out_release_regions; |
9468 | } |
9469 | } |
9470 | |
9471 | ipr_regs = pci_ioremap_bar(pdev, bar: 0); |
9472 | |
9473 | if (!ipr_regs) { |
9474 | dev_err(&pdev->dev, |
9475 | "Couldn't map memory range of registers\n" ); |
9476 | rc = -ENOMEM; |
9477 | goto out_disable; |
9478 | } |
9479 | |
9480 | ioa_cfg->hdw_dma_regs = ipr_regs; |
9481 | ioa_cfg->hdw_dma_regs_pci = ipr_regs_pci; |
9482 | ioa_cfg->ioa_mailbox = ioa_cfg->chip_cfg->mailbox + ipr_regs; |
9483 | |
9484 | ipr_init_regs(ioa_cfg); |
9485 | |
9486 | if (ioa_cfg->sis64) { |
9487 | rc = dma_set_mask_and_coherent(dev: &pdev->dev, DMA_BIT_MASK(64)); |
9488 | if (rc < 0) { |
9489 | dev_dbg(&pdev->dev, "Failed to set 64 bit DMA mask\n" ); |
9490 | rc = dma_set_mask_and_coherent(dev: &pdev->dev, |
9491 | DMA_BIT_MASK(32)); |
9492 | } |
9493 | } else |
9494 | rc = dma_set_mask_and_coherent(dev: &pdev->dev, DMA_BIT_MASK(32)); |
9495 | |
9496 | if (rc < 0) { |
9497 | dev_err(&pdev->dev, "Failed to set DMA mask\n" ); |
9498 | goto cleanup_nomem; |
9499 | } |
9500 | |
9501 | rc = pci_write_config_byte(dev: pdev, PCI_CACHE_LINE_SIZE, |
9502 | val: ioa_cfg->chip_cfg->cache_line_size); |
9503 | |
9504 | if (rc != PCIBIOS_SUCCESSFUL) { |
9505 | dev_err(&pdev->dev, "Write of cache line size failed\n" ); |
9506 | ipr_wait_for_pci_err_recovery(ioa_cfg); |
9507 | rc = -EIO; |
9508 | goto cleanup_nomem; |
9509 | } |
9510 | |
9511 | /* Issue MMIO read to ensure card is not in EEH */ |
9512 | interrupts = readl(addr: ioa_cfg->regs.sense_interrupt_reg); |
9513 | ipr_wait_for_pci_err_recovery(ioa_cfg); |
9514 | |
9515 | if (ipr_number_of_msix > IPR_MAX_MSIX_VECTORS) { |
9516 | dev_err(&pdev->dev, "The max number of MSIX is %d\n" , |
9517 | IPR_MAX_MSIX_VECTORS); |
9518 | ipr_number_of_msix = IPR_MAX_MSIX_VECTORS; |
9519 | } |
9520 | |
9521 | irq_flag = PCI_IRQ_LEGACY; |
9522 | if (ioa_cfg->ipr_chip->has_msi) |
9523 | irq_flag |= PCI_IRQ_MSI | PCI_IRQ_MSIX; |
9524 | rc = pci_alloc_irq_vectors(dev: pdev, min_vecs: 1, max_vecs: ipr_number_of_msix, flags: irq_flag); |
9525 | if (rc < 0) { |
9526 | ipr_wait_for_pci_err_recovery(ioa_cfg); |
9527 | goto cleanup_nomem; |
9528 | } |
9529 | ioa_cfg->nvectors = rc; |
9530 | |
9531 | if (!pdev->msi_enabled && !pdev->msix_enabled) |
9532 | ioa_cfg->clear_isr = 1; |
9533 | |
9534 | pci_set_master(dev: pdev); |
9535 | |
9536 | if (pci_channel_offline(pdev)) { |
9537 | ipr_wait_for_pci_err_recovery(ioa_cfg); |
9538 | pci_set_master(dev: pdev); |
9539 | if (pci_channel_offline(pdev)) { |
9540 | rc = -EIO; |
9541 | goto out_msi_disable; |
9542 | } |
9543 | } |
9544 | |
9545 | if (pdev->msi_enabled || pdev->msix_enabled) { |
9546 | rc = ipr_test_msi(ioa_cfg, pdev); |
9547 | switch (rc) { |
9548 | case 0: |
9549 | dev_info(&pdev->dev, |
9550 | "Request for %d MSI%ss succeeded." , ioa_cfg->nvectors, |
9551 | pdev->msix_enabled ? "-X" : "" ); |
9552 | break; |
9553 | case -EOPNOTSUPP: |
9554 | ipr_wait_for_pci_err_recovery(ioa_cfg); |
9555 | pci_free_irq_vectors(dev: pdev); |
9556 | |
9557 | ioa_cfg->nvectors = 1; |
9558 | ioa_cfg->clear_isr = 1; |
9559 | break; |
9560 | default: |
9561 | goto out_msi_disable; |
9562 | } |
9563 | } |
9564 | |
9565 | ioa_cfg->hrrq_num = min3(ioa_cfg->nvectors, |
9566 | (unsigned int)num_online_cpus(), |
9567 | (unsigned int)IPR_MAX_HRRQ_NUM); |
9568 | |
9569 | if ((rc = ipr_save_pcix_cmd_reg(ioa_cfg))) |
9570 | goto out_msi_disable; |
9571 | |
9572 | if ((rc = ipr_set_pcix_cmd_reg(ioa_cfg))) |
9573 | goto out_msi_disable; |
9574 | |
9575 | rc = ipr_alloc_mem(ioa_cfg); |
9576 | if (rc < 0) { |
9577 | dev_err(&pdev->dev, |
9578 | "Couldn't allocate enough memory for device driver!\n" ); |
9579 | goto out_msi_disable; |
9580 | } |
9581 | |
9582 | /* Save away PCI config space for use following IOA reset */ |
9583 | rc = pci_save_state(dev: pdev); |
9584 | |
9585 | if (rc != PCIBIOS_SUCCESSFUL) { |
9586 | dev_err(&pdev->dev, "Failed to save PCI config space\n" ); |
9587 | rc = -EIO; |
9588 | goto cleanup_nolog; |
9589 | } |
9590 | |
9591 | /* |
9592 | * If HRRQ updated interrupt is not masked, or reset alert is set, |
9593 | * the card is in an unknown state and needs a hard reset |
9594 | */ |
9595 | mask = readl(addr: ioa_cfg->regs.sense_interrupt_mask_reg32); |
9596 | interrupts = readl(addr: ioa_cfg->regs.sense_interrupt_reg32); |
9597 | uproc = readl(addr: ioa_cfg->regs.sense_uproc_interrupt_reg32); |
9598 | if ((mask & IPR_PCII_HRRQ_UPDATED) == 0 || (uproc & IPR_UPROCI_RESET_ALERT)) |
9599 | ioa_cfg->needs_hard_reset = 1; |
9600 | if ((interrupts & IPR_PCII_ERROR_INTERRUPTS) || reset_devices) |
9601 | ioa_cfg->needs_hard_reset = 1; |
9602 | if (interrupts & IPR_PCII_IOA_UNIT_CHECKED) |
9603 | ioa_cfg->ioa_unit_checked = 1; |
9604 | |
9605 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); |
9606 | ipr_mask_and_clear_interrupts(ioa_cfg, clr_ints: ~IPR_PCII_IOA_TRANS_TO_OPER); |
9607 | spin_unlock_irqrestore(lock: ioa_cfg->host->host_lock, flags: lock_flags); |
9608 | |
9609 | if (pdev->msi_enabled || pdev->msix_enabled) { |
9610 | name_msi_vectors(ioa_cfg); |
9611 | rc = request_irq(irq: pci_irq_vector(dev: pdev, nr: 0), handler: ipr_isr, flags: 0, |
9612 | name: ioa_cfg->vectors_info[0].desc, |
9613 | dev: &ioa_cfg->hrrq[0]); |
9614 | if (!rc) |
9615 | rc = ipr_request_other_msi_irqs(ioa_cfg, pdev); |
9616 | } else { |
9617 | rc = request_irq(irq: pdev->irq, handler: ipr_isr, |
9618 | IRQF_SHARED, |
9619 | IPR_NAME, dev: &ioa_cfg->hrrq[0]); |
9620 | } |
9621 | if (rc) { |
9622 | dev_err(&pdev->dev, "Couldn't register IRQ %d! rc=%d\n" , |
9623 | pdev->irq, rc); |
9624 | goto cleanup_nolog; |
9625 | } |
9626 | |
9627 | if ((dev_id->driver_data & IPR_USE_PCI_WARM_RESET) || |
9628 | (dev_id->device == PCI_DEVICE_ID_IBM_OBSIDIAN_E && !ioa_cfg->revid)) { |
9629 | ioa_cfg->needs_warm_reset = 1; |
9630 | ioa_cfg->reset = ipr_reset_slot_reset; |
9631 | |
9632 | ioa_cfg->reset_work_q = alloc_ordered_workqueue("ipr_reset_%d" , |
9633 | WQ_MEM_RECLAIM, host->host_no); |
9634 | |
9635 | if (!ioa_cfg->reset_work_q) { |
9636 | dev_err(&pdev->dev, "Couldn't register reset workqueue\n" ); |
9637 | rc = -ENOMEM; |
9638 | goto out_free_irq; |
9639 | } |
9640 | } else |
9641 | ioa_cfg->reset = ipr_reset_start_bist; |
9642 | |
9643 | spin_lock_irqsave(&ipr_driver_lock, driver_lock_flags); |
9644 | list_add_tail(new: &ioa_cfg->queue, head: &ipr_ioa_head); |
9645 | spin_unlock_irqrestore(lock: &ipr_driver_lock, flags: driver_lock_flags); |
9646 | |
9647 | LEAVE; |
9648 | out: |
9649 | return rc; |
9650 | |
9651 | out_free_irq: |
9652 | ipr_free_irqs(ioa_cfg); |
9653 | cleanup_nolog: |
9654 | ipr_free_mem(ioa_cfg); |
9655 | out_msi_disable: |
9656 | ipr_wait_for_pci_err_recovery(ioa_cfg); |
9657 | pci_free_irq_vectors(dev: pdev); |
9658 | cleanup_nomem: |
9659 | iounmap(addr: ipr_regs); |
9660 | out_disable: |
9661 | pci_disable_device(dev: pdev); |
9662 | out_release_regions: |
9663 | pci_release_regions(pdev); |
9664 | out_scsi_host_put: |
9665 | scsi_host_put(t: host); |
9666 | goto out; |
9667 | } |
9668 | |
9669 | /** |
9670 | * ipr_initiate_ioa_bringdown - Bring down an adapter |
9671 | * @ioa_cfg: ioa config struct |
9672 | * @shutdown_type: shutdown type |
9673 | * |
9674 | * Description: This function will initiate bringing down the adapter. |
9675 | * This consists of issuing an IOA shutdown to the adapter |
9676 | * to flush the cache, and running BIST. |
9677 | * If the caller needs to wait on the completion of the reset, |
9678 | * the caller must sleep on the reset_wait_q. |
9679 | * |
9680 | * Return value: |
9681 | * none |
9682 | **/ |
9683 | static void ipr_initiate_ioa_bringdown(struct ipr_ioa_cfg *ioa_cfg, |
9684 | enum ipr_shutdown_type shutdown_type) |
9685 | { |
9686 | ENTER; |
9687 | if (ioa_cfg->sdt_state == WAIT_FOR_DUMP) |
9688 | ioa_cfg->sdt_state = ABORT_DUMP; |
9689 | ioa_cfg->reset_retries = 0; |
9690 | ioa_cfg->in_ioa_bringdown = 1; |
9691 | ipr_initiate_ioa_reset(ioa_cfg, shutdown_type); |
9692 | LEAVE; |
9693 | } |
9694 | |
9695 | /** |
9696 | * __ipr_remove - Remove a single adapter |
9697 | * @pdev: pci device struct |
9698 | * |
9699 | * Adapter hot plug remove entry point. |
9700 | * |
9701 | * Return value: |
9702 | * none |
9703 | **/ |
9704 | static void __ipr_remove(struct pci_dev *pdev) |
9705 | { |
9706 | unsigned long host_lock_flags = 0; |
9707 | struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev); |
9708 | int i; |
9709 | unsigned long driver_lock_flags; |
9710 | ENTER; |
9711 | |
9712 | spin_lock_irqsave(ioa_cfg->host->host_lock, host_lock_flags); |
9713 | while (ioa_cfg->in_reset_reload) { |
9714 | spin_unlock_irqrestore(lock: ioa_cfg->host->host_lock, flags: host_lock_flags); |
9715 | wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload); |
9716 | spin_lock_irqsave(ioa_cfg->host->host_lock, host_lock_flags); |
9717 | } |
9718 | |
9719 | for (i = 0; i < ioa_cfg->hrrq_num; i++) { |
9720 | spin_lock(lock: &ioa_cfg->hrrq[i]._lock); |
9721 | ioa_cfg->hrrq[i].removing_ioa = 1; |
9722 | spin_unlock(lock: &ioa_cfg->hrrq[i]._lock); |
9723 | } |
9724 | wmb(); |
9725 | ipr_initiate_ioa_bringdown(ioa_cfg, shutdown_type: IPR_SHUTDOWN_NORMAL); |
9726 | |
9727 | spin_unlock_irqrestore(lock: ioa_cfg->host->host_lock, flags: host_lock_flags); |
9728 | wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload); |
9729 | flush_work(work: &ioa_cfg->work_q); |
9730 | if (ioa_cfg->reset_work_q) |
9731 | flush_workqueue(ioa_cfg->reset_work_q); |
9732 | INIT_LIST_HEAD(list: &ioa_cfg->used_res_q); |
9733 | spin_lock_irqsave(ioa_cfg->host->host_lock, host_lock_flags); |
9734 | |
9735 | spin_lock_irqsave(&ipr_driver_lock, driver_lock_flags); |
9736 | list_del(entry: &ioa_cfg->queue); |
9737 | spin_unlock_irqrestore(lock: &ipr_driver_lock, flags: driver_lock_flags); |
9738 | |
9739 | if (ioa_cfg->sdt_state == ABORT_DUMP) |
9740 | ioa_cfg->sdt_state = WAIT_FOR_DUMP; |
9741 | spin_unlock_irqrestore(lock: ioa_cfg->host->host_lock, flags: host_lock_flags); |
9742 | |
9743 | ipr_free_all_resources(ioa_cfg); |
9744 | |
9745 | LEAVE; |
9746 | } |
9747 | |
9748 | /** |
9749 | * ipr_remove - IOA hot plug remove entry point |
9750 | * @pdev: pci device struct |
9751 | * |
9752 | * Adapter hot plug remove entry point. |
9753 | * |
9754 | * Return value: |
9755 | * none |
9756 | **/ |
9757 | static void ipr_remove(struct pci_dev *pdev) |
9758 | { |
9759 | struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev); |
9760 | |
9761 | ENTER; |
9762 | |
9763 | ipr_remove_trace_file(&ioa_cfg->host->shost_dev.kobj, |
9764 | &ipr_trace_attr); |
9765 | ipr_remove_dump_file(&ioa_cfg->host->shost_dev.kobj, |
9766 | &ipr_dump_attr); |
9767 | sysfs_remove_bin_file(kobj: &ioa_cfg->host->shost_dev.kobj, |
9768 | attr: &ipr_ioa_async_err_log); |
9769 | scsi_remove_host(ioa_cfg->host); |
9770 | |
9771 | __ipr_remove(pdev); |
9772 | |
9773 | LEAVE; |
9774 | } |
9775 | |
9776 | /** |
9777 | * ipr_probe - Adapter hot plug add entry point |
9778 | * @pdev: pci device struct |
9779 | * @dev_id: pci device ID |
9780 | * |
9781 | * Return value: |
9782 | * 0 on success / non-zero on failure |
9783 | **/ |
9784 | static int ipr_probe(struct pci_dev *pdev, const struct pci_device_id *dev_id) |
9785 | { |
9786 | struct ipr_ioa_cfg *ioa_cfg; |
9787 | unsigned long flags; |
9788 | int rc, i; |
9789 | |
9790 | rc = ipr_probe_ioa(pdev, dev_id); |
9791 | |
9792 | if (rc) |
9793 | return rc; |
9794 | |
9795 | ioa_cfg = pci_get_drvdata(pdev); |
9796 | ipr_probe_ioa_part2(ioa_cfg); |
9797 | |
9798 | rc = scsi_add_host(host: ioa_cfg->host, dev: &pdev->dev); |
9799 | |
9800 | if (rc) { |
9801 | __ipr_remove(pdev); |
9802 | return rc; |
9803 | } |
9804 | |
9805 | rc = ipr_create_trace_file(&ioa_cfg->host->shost_dev.kobj, |
9806 | &ipr_trace_attr); |
9807 | |
9808 | if (rc) { |
9809 | scsi_remove_host(ioa_cfg->host); |
9810 | __ipr_remove(pdev); |
9811 | return rc; |
9812 | } |
9813 | |
9814 | rc = sysfs_create_bin_file(kobj: &ioa_cfg->host->shost_dev.kobj, |
9815 | attr: &ipr_ioa_async_err_log); |
9816 | |
9817 | if (rc) { |
9818 | ipr_remove_dump_file(&ioa_cfg->host->shost_dev.kobj, |
9819 | &ipr_dump_attr); |
9820 | ipr_remove_trace_file(&ioa_cfg->host->shost_dev.kobj, |
9821 | &ipr_trace_attr); |
9822 | scsi_remove_host(ioa_cfg->host); |
9823 | __ipr_remove(pdev); |
9824 | return rc; |
9825 | } |
9826 | |
9827 | rc = ipr_create_dump_file(&ioa_cfg->host->shost_dev.kobj, |
9828 | &ipr_dump_attr); |
9829 | |
9830 | if (rc) { |
9831 | sysfs_remove_bin_file(kobj: &ioa_cfg->host->shost_dev.kobj, |
9832 | attr: &ipr_ioa_async_err_log); |
9833 | ipr_remove_trace_file(&ioa_cfg->host->shost_dev.kobj, |
9834 | &ipr_trace_attr); |
9835 | scsi_remove_host(ioa_cfg->host); |
9836 | __ipr_remove(pdev); |
9837 | return rc; |
9838 | } |
9839 | spin_lock_irqsave(ioa_cfg->host->host_lock, flags); |
9840 | ioa_cfg->scan_enabled = 1; |
9841 | schedule_work(work: &ioa_cfg->work_q); |
9842 | spin_unlock_irqrestore(lock: ioa_cfg->host->host_lock, flags); |
9843 | |
9844 | ioa_cfg->iopoll_weight = ioa_cfg->chip_cfg->iopoll_weight; |
9845 | |
9846 | if (ioa_cfg->iopoll_weight && ioa_cfg->sis64 && ioa_cfg->nvectors > 1) { |
9847 | for (i = 1; i < ioa_cfg->hrrq_num; i++) { |
9848 | irq_poll_init(&ioa_cfg->hrrq[i].iopoll, |
9849 | ioa_cfg->iopoll_weight, ipr_iopoll); |
9850 | } |
9851 | } |
9852 | |
9853 | scsi_scan_host(ioa_cfg->host); |
9854 | |
9855 | return 0; |
9856 | } |
9857 | |
9858 | /** |
9859 | * ipr_shutdown - Shutdown handler. |
9860 | * @pdev: pci device struct |
9861 | * |
9862 | * This function is invoked upon system shutdown/reboot. It will issue |
9863 | * an adapter shutdown to the adapter to flush the write cache. |
9864 | * |
9865 | * Return value: |
9866 | * none |
9867 | **/ |
9868 | static void ipr_shutdown(struct pci_dev *pdev) |
9869 | { |
9870 | struct ipr_ioa_cfg *ioa_cfg = pci_get_drvdata(pdev); |
9871 | unsigned long lock_flags = 0; |
9872 | enum ipr_shutdown_type shutdown_type = IPR_SHUTDOWN_NORMAL; |
9873 | int i; |
9874 | |
9875 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); |
9876 | if (ioa_cfg->iopoll_weight && ioa_cfg->sis64 && ioa_cfg->nvectors > 1) { |
9877 | ioa_cfg->iopoll_weight = 0; |
9878 | for (i = 1; i < ioa_cfg->hrrq_num; i++) |
9879 | irq_poll_disable(&ioa_cfg->hrrq[i].iopoll); |
9880 | } |
9881 | |
9882 | while (ioa_cfg->in_reset_reload) { |
9883 | spin_unlock_irqrestore(lock: ioa_cfg->host->host_lock, flags: lock_flags); |
9884 | wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload); |
9885 | spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); |
9886 | } |
9887 | |
9888 | if (ipr_fast_reboot && system_state == SYSTEM_RESTART && ioa_cfg->sis64) |
9889 | shutdown_type = IPR_SHUTDOWN_QUIESCE; |
9890 | |
9891 | ipr_initiate_ioa_bringdown(ioa_cfg, shutdown_type); |
9892 | spin_unlock_irqrestore(lock: ioa_cfg->host->host_lock, flags: lock_flags); |
9893 | wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload); |
9894 | if (ipr_fast_reboot && system_state == SYSTEM_RESTART && ioa_cfg->sis64) { |
9895 | ipr_free_irqs(ioa_cfg); |
9896 | pci_disable_device(dev: ioa_cfg->pdev); |
9897 | } |
9898 | } |
9899 | |
9900 | static struct pci_device_id ipr_pci_table[] = { |
9901 | { PCI_VENDOR_ID_MYLEX, PCI_DEVICE_ID_IBM_GEMSTONE, |
9902 | PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_5702, 0, 0, 0 }, |
9903 | { PCI_VENDOR_ID_MYLEX, PCI_DEVICE_ID_IBM_GEMSTONE, |
9904 | PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_5703, 0, 0, 0 }, |
9905 | { PCI_VENDOR_ID_MYLEX, PCI_DEVICE_ID_IBM_GEMSTONE, |
9906 | PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_573D, 0, 0, 0 }, |
9907 | { PCI_VENDOR_ID_MYLEX, PCI_DEVICE_ID_IBM_GEMSTONE, |
9908 | PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_573E, 0, 0, 0 }, |
9909 | { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CITRINE, |
9910 | PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_571B, 0, 0, 0 }, |
9911 | { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CITRINE, |
9912 | PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572E, 0, 0, 0 }, |
9913 | { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CITRINE, |
9914 | PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_571A, 0, 0, 0 }, |
9915 | { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CITRINE, |
9916 | PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_575B, 0, 0, |
9917 | IPR_USE_LONG_TRANSOP_TIMEOUT }, |
9918 | { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_OBSIDIAN, |
9919 | PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572A, 0, 0, 0 }, |
9920 | { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_OBSIDIAN, |
9921 | PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572B, 0, 0, |
9922 | IPR_USE_LONG_TRANSOP_TIMEOUT }, |
9923 | { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_OBSIDIAN, |
9924 | PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_575C, 0, 0, |
9925 | IPR_USE_LONG_TRANSOP_TIMEOUT }, |
9926 | { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN, |
9927 | PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572A, 0, 0, 0 }, |
9928 | { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN, |
9929 | PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572B, 0, 0, |
9930 | IPR_USE_LONG_TRANSOP_TIMEOUT}, |
9931 | { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN, |
9932 | PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_575C, 0, 0, |
9933 | IPR_USE_LONG_TRANSOP_TIMEOUT }, |
9934 | { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN_E, |
9935 | PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_574E, 0, 0, |
9936 | IPR_USE_LONG_TRANSOP_TIMEOUT }, |
9937 | { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN_E, |
9938 | PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57B3, 0, 0, 0 }, |
9939 | { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN_E, |
9940 | PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57CC, 0, 0, 0 }, |
9941 | { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_OBSIDIAN_E, |
9942 | PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57B7, 0, 0, |
9943 | IPR_USE_LONG_TRANSOP_TIMEOUT | IPR_USE_PCI_WARM_RESET }, |
9944 | { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_SNIPE, |
9945 | PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_2780, 0, 0, 0 }, |
9946 | { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_SCAMP, |
9947 | PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_571E, 0, 0, 0 }, |
9948 | { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_SCAMP, |
9949 | PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_571F, 0, 0, |
9950 | IPR_USE_LONG_TRANSOP_TIMEOUT }, |
9951 | { PCI_VENDOR_ID_ADAPTEC2, PCI_DEVICE_ID_ADAPTEC2_SCAMP, |
9952 | PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_572F, 0, 0, |
9953 | IPR_USE_LONG_TRANSOP_TIMEOUT }, |
9954 | { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_FPGA_E2, |
9955 | PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57B5, 0, 0, 0 }, |
9956 | { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_FPGA_E2, |
9957 | PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_574D, 0, 0, 0 }, |
9958 | { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_FPGA_E2, |
9959 | PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57B2, 0, 0, 0 }, |
9960 | { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_FPGA_E2, |
9961 | PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57C0, 0, 0, 0 }, |
9962 | { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_FPGA_E2, |
9963 | PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57C3, 0, 0, 0 }, |
9964 | { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROC_FPGA_E2, |
9965 | PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57C4, 0, 0, 0 }, |
9966 | { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE, |
9967 | PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57B4, 0, 0, 0 }, |
9968 | { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE, |
9969 | PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57B1, 0, 0, 0 }, |
9970 | { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE, |
9971 | PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57C6, 0, 0, 0 }, |
9972 | { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE, |
9973 | PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57C8, 0, 0, 0 }, |
9974 | { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE, |
9975 | PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57CE, 0, 0, 0 }, |
9976 | { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE, |
9977 | PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57D5, 0, 0, 0 }, |
9978 | { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE, |
9979 | PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57D6, 0, 0, 0 }, |
9980 | { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE, |
9981 | PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57D7, 0, 0, 0 }, |
9982 | { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE, |
9983 | PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57D8, 0, 0, 0 }, |
9984 | { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE, |
9985 | PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57D9, 0, 0, 0 }, |
9986 | { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE, |
9987 | PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57DA, 0, 0, 0 }, |
9988 | { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE, |
9989 | PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57EB, 0, 0, 0 }, |
9990 | { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE, |
9991 | PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57EC, 0, 0, 0 }, |
9992 | { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE, |
9993 | PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57ED, 0, 0, 0 }, |
9994 | { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE, |
9995 | PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57EE, 0, 0, 0 }, |
9996 | { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE, |
9997 | PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57EF, 0, 0, 0 }, |
9998 | { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE, |
9999 | PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_57F0, 0, 0, 0 }, |
10000 | { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE, |
10001 | PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_2CCA, 0, 0, 0 }, |
10002 | { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE, |
10003 | PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_2CD2, 0, 0, 0 }, |
10004 | { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_CROCODILE, |
10005 | PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_2CCD, 0, 0, 0 }, |
10006 | { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_RATTLESNAKE, |
10007 | PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_580A, 0, 0, 0 }, |
10008 | { PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_RATTLESNAKE, |
10009 | PCI_VENDOR_ID_IBM, IPR_SUBS_DEV_ID_580B, 0, 0, 0 }, |
10010 | { } |
10011 | }; |
10012 | MODULE_DEVICE_TABLE(pci, ipr_pci_table); |
10013 | |
10014 | static const struct pci_error_handlers ipr_err_handler = { |
10015 | .error_detected = ipr_pci_error_detected, |
10016 | .mmio_enabled = ipr_pci_mmio_enabled, |
10017 | .slot_reset = ipr_pci_slot_reset, |
10018 | }; |
10019 | |
10020 | static struct pci_driver ipr_driver = { |
10021 | .name = IPR_NAME, |
10022 | .id_table = ipr_pci_table, |
10023 | .probe = ipr_probe, |
10024 | .remove = ipr_remove, |
10025 | .shutdown = ipr_shutdown, |
10026 | .err_handler = &ipr_err_handler, |
10027 | }; |
10028 | |
10029 | /** |
10030 | * ipr_halt_done - Shutdown prepare completion |
10031 | * @ipr_cmd: ipr command struct |
10032 | * |
10033 | * Return value: |
10034 | * none |
10035 | **/ |
10036 | static void ipr_halt_done(struct ipr_cmnd *ipr_cmd) |
10037 | { |
10038 | list_add_tail(new: &ipr_cmd->queue, head: &ipr_cmd->hrrq->hrrq_free_q); |
10039 | } |
10040 | |
10041 | /** |
10042 | * ipr_halt - Issue shutdown prepare to all adapters |
10043 | * @nb: Notifier block |
10044 | * @event: Notifier event |
10045 | * @buf: Notifier data (unused) |
10046 | * |
10047 | * Return value: |
10048 | * NOTIFY_OK on success / NOTIFY_DONE on failure |
10049 | **/ |
10050 | static int ipr_halt(struct notifier_block *nb, ulong event, void *buf) |
10051 | { |
10052 | struct ipr_cmnd *ipr_cmd; |
10053 | struct ipr_ioa_cfg *ioa_cfg; |
10054 | unsigned long flags = 0, driver_lock_flags; |
10055 | |
10056 | if (event != SYS_RESTART && event != SYS_HALT && event != SYS_POWER_OFF) |
10057 | return NOTIFY_DONE; |
10058 | |
10059 | spin_lock_irqsave(&ipr_driver_lock, driver_lock_flags); |
10060 | |
10061 | list_for_each_entry(ioa_cfg, &ipr_ioa_head, queue) { |
10062 | spin_lock_irqsave(ioa_cfg->host->host_lock, flags); |
10063 | if (!ioa_cfg->hrrq[IPR_INIT_HRRQ].allow_cmds || |
10064 | (ipr_fast_reboot && event == SYS_RESTART && ioa_cfg->sis64)) { |
10065 | spin_unlock_irqrestore(lock: ioa_cfg->host->host_lock, flags); |
10066 | continue; |
10067 | } |
10068 | |
10069 | ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg); |
10070 | ipr_cmd->ioarcb.res_handle = cpu_to_be32(IPR_IOA_RES_HANDLE); |
10071 | ipr_cmd->ioarcb.cmd_pkt.request_type = IPR_RQTYPE_IOACMD; |
10072 | ipr_cmd->ioarcb.cmd_pkt.cdb[0] = IPR_IOA_SHUTDOWN; |
10073 | ipr_cmd->ioarcb.cmd_pkt.cdb[1] = IPR_SHUTDOWN_PREPARE_FOR_NORMAL; |
10074 | |
10075 | ipr_do_req(ipr_cmd, done: ipr_halt_done, timeout_func: ipr_timeout, IPR_DEVICE_RESET_TIMEOUT); |
10076 | spin_unlock_irqrestore(lock: ioa_cfg->host->host_lock, flags); |
10077 | } |
10078 | spin_unlock_irqrestore(lock: &ipr_driver_lock, flags: driver_lock_flags); |
10079 | |
10080 | return NOTIFY_OK; |
10081 | } |
10082 | |
10083 | static struct notifier_block ipr_notifier = { |
10084 | ipr_halt, NULL, 0 |
10085 | }; |
10086 | |
10087 | /** |
10088 | * ipr_init - Module entry point |
10089 | * |
10090 | * Return value: |
10091 | * 0 on success / negative value on failure |
10092 | **/ |
10093 | static int __init ipr_init(void) |
10094 | { |
10095 | int rc; |
10096 | |
10097 | ipr_info("IBM Power RAID SCSI Device Driver version: %s %s\n" , |
10098 | IPR_DRIVER_VERSION, IPR_DRIVER_DATE); |
10099 | |
10100 | register_reboot_notifier(&ipr_notifier); |
10101 | rc = pci_register_driver(&ipr_driver); |
10102 | if (rc) { |
10103 | unregister_reboot_notifier(&ipr_notifier); |
10104 | return rc; |
10105 | } |
10106 | |
10107 | return 0; |
10108 | } |
10109 | |
10110 | /** |
10111 | * ipr_exit - Module unload |
10112 | * |
10113 | * Module unload entry point. |
10114 | * |
10115 | * Return value: |
10116 | * none |
10117 | **/ |
10118 | static void __exit ipr_exit(void) |
10119 | { |
10120 | unregister_reboot_notifier(&ipr_notifier); |
10121 | pci_unregister_driver(dev: &ipr_driver); |
10122 | } |
10123 | |
10124 | module_init(ipr_init); |
10125 | module_exit(ipr_exit); |
10126 | |