xref: /linux/drivers/scsi/ipr.h (revision 41e0d49104dbff888ef6446ea46842fde66c0a76)
1 /* SPDX-License-Identifier: GPL-2.0-or-later */
2 /*
3  * ipr.h -- 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  * Alan Cox <alan@lxorguk.ukuu.org.uk> - Removed several careless u32/dma_addr_t errors
10  *				that broke 64bit platforms.
11  */
12 
13 #ifndef _IPR_H
14 #define _IPR_H
15 
16 #include <asm/unaligned.h>
17 #include <linux/types.h>
18 #include <linux/completion.h>
19 #include <linux/libata.h>
20 #include <linux/list.h>
21 #include <linux/kref.h>
22 #include <linux/irq_poll.h>
23 #include <scsi/scsi.h>
24 #include <scsi/scsi_cmnd.h>
25 
26 /*
27  * Literals
28  */
29 #define IPR_DRIVER_VERSION "2.6.4"
30 #define IPR_DRIVER_DATE "(March 14, 2017)"
31 
32 /*
33  * IPR_MAX_CMD_PER_LUN: This defines the maximum number of outstanding
34  *	ops per device for devices not running tagged command queuing.
35  *	This can be adjusted at runtime through sysfs device attributes.
36  */
37 #define IPR_MAX_CMD_PER_LUN				6
38 #define IPR_MAX_CMD_PER_ATA_LUN			1
39 
40 /*
41  * IPR_NUM_BASE_CMD_BLKS: This defines the maximum number of
42  *	ops the mid-layer can send to the adapter.
43  */
44 #define IPR_NUM_BASE_CMD_BLKS			(ioa_cfg->max_cmds)
45 
46 #define PCI_DEVICE_ID_IBM_OBSIDIAN_E	0x0339
47 
48 #define PCI_DEVICE_ID_IBM_CROC_FPGA_E2          0x033D
49 #define PCI_DEVICE_ID_IBM_CROCODILE             0x034A
50 #define PCI_DEVICE_ID_IBM_RATTLESNAKE		0x04DA
51 
52 #define IPR_SUBS_DEV_ID_2780	0x0264
53 #define IPR_SUBS_DEV_ID_5702	0x0266
54 #define IPR_SUBS_DEV_ID_5703	0x0278
55 #define IPR_SUBS_DEV_ID_572E	0x028D
56 #define IPR_SUBS_DEV_ID_573E	0x02D3
57 #define IPR_SUBS_DEV_ID_573D	0x02D4
58 #define IPR_SUBS_DEV_ID_571A	0x02C0
59 #define IPR_SUBS_DEV_ID_571B	0x02BE
60 #define IPR_SUBS_DEV_ID_571E	0x02BF
61 #define IPR_SUBS_DEV_ID_571F	0x02D5
62 #define IPR_SUBS_DEV_ID_572A	0x02C1
63 #define IPR_SUBS_DEV_ID_572B	0x02C2
64 #define IPR_SUBS_DEV_ID_572F	0x02C3
65 #define IPR_SUBS_DEV_ID_574E	0x030A
66 #define IPR_SUBS_DEV_ID_575B	0x030D
67 #define IPR_SUBS_DEV_ID_575C	0x0338
68 #define IPR_SUBS_DEV_ID_57B3	0x033A
69 #define IPR_SUBS_DEV_ID_57B7	0x0360
70 #define IPR_SUBS_DEV_ID_57B8	0x02C2
71 
72 #define IPR_SUBS_DEV_ID_57B4    0x033B
73 #define IPR_SUBS_DEV_ID_57B2    0x035F
74 #define IPR_SUBS_DEV_ID_57C0    0x0352
75 #define IPR_SUBS_DEV_ID_57C3    0x0353
76 #define IPR_SUBS_DEV_ID_57C4    0x0354
77 #define IPR_SUBS_DEV_ID_57C6    0x0357
78 #define IPR_SUBS_DEV_ID_57CC    0x035C
79 
80 #define IPR_SUBS_DEV_ID_57B5    0x033C
81 #define IPR_SUBS_DEV_ID_57CE    0x035E
82 #define IPR_SUBS_DEV_ID_57B1    0x0355
83 
84 #define IPR_SUBS_DEV_ID_574D    0x0356
85 #define IPR_SUBS_DEV_ID_57C8    0x035D
86 
87 #define IPR_SUBS_DEV_ID_57D5    0x03FB
88 #define IPR_SUBS_DEV_ID_57D6    0x03FC
89 #define IPR_SUBS_DEV_ID_57D7    0x03FF
90 #define IPR_SUBS_DEV_ID_57D8    0x03FE
91 #define IPR_SUBS_DEV_ID_57D9    0x046D
92 #define IPR_SUBS_DEV_ID_57DA    0x04CA
93 #define IPR_SUBS_DEV_ID_57EB    0x0474
94 #define IPR_SUBS_DEV_ID_57EC    0x0475
95 #define IPR_SUBS_DEV_ID_57ED    0x0499
96 #define IPR_SUBS_DEV_ID_57EE    0x049A
97 #define IPR_SUBS_DEV_ID_57EF    0x049B
98 #define IPR_SUBS_DEV_ID_57F0    0x049C
99 #define IPR_SUBS_DEV_ID_2CCA	0x04C7
100 #define IPR_SUBS_DEV_ID_2CD2	0x04C8
101 #define IPR_SUBS_DEV_ID_2CCD	0x04C9
102 #define IPR_SUBS_DEV_ID_580A	0x04FC
103 #define IPR_SUBS_DEV_ID_580B	0x04FB
104 #define IPR_NAME				"ipr"
105 
106 /*
107  * Return codes
108  */
109 #define IPR_RC_JOB_CONTINUE		1
110 #define IPR_RC_JOB_RETURN		2
111 
112 /*
113  * IOASCs
114  */
115 #define IPR_IOASC_NR_INIT_CMD_REQUIRED		0x02040200
116 #define IPR_IOASC_NR_IOA_RESET_REQUIRED		0x02048000
117 #define IPR_IOASC_SYNC_REQUIRED			0x023f0000
118 #define IPR_IOASC_MED_DO_NOT_REALLOC		0x03110C00
119 #define IPR_IOASC_HW_SEL_TIMEOUT			0x04050000
120 #define IPR_IOASC_HW_DEV_BUS_STATUS			0x04448500
121 #define	IPR_IOASC_IOASC_MASK			0xFFFFFF00
122 #define	IPR_IOASC_SCSI_STATUS_MASK		0x000000FF
123 #define IPR_IOASC_HW_CMD_FAILED			0x046E0000
124 #define IPR_IOASC_IR_INVALID_REQ_TYPE_OR_PKT	0x05240000
125 #define IPR_IOASC_IR_RESOURCE_HANDLE		0x05250000
126 #define IPR_IOASC_IR_NO_CMDS_TO_2ND_IOA		0x05258100
127 #define IPR_IOASA_IR_DUAL_IOA_DISABLED		0x052C8000
128 #define IPR_IOASC_BUS_WAS_RESET			0x06290000
129 #define IPR_IOASC_BUS_WAS_RESET_BY_OTHER		0x06298000
130 #define IPR_IOASC_ABORTED_CMD_TERM_BY_HOST	0x0B5A0000
131 #define IPR_IOASC_IR_NON_OPTIMIZED		0x05258200
132 
133 #define IPR_FIRST_DRIVER_IOASC			0x10000000
134 #define IPR_IOASC_IOA_WAS_RESET			0x10000001
135 #define IPR_IOASC_PCI_ACCESS_ERROR			0x10000002
136 
137 /* Driver data flags */
138 #define IPR_USE_LONG_TRANSOP_TIMEOUT		0x00000001
139 #define IPR_USE_PCI_WARM_RESET			0x00000002
140 
141 #define IPR_DEFAULT_MAX_ERROR_DUMP			984
142 #define IPR_NUM_LOG_HCAMS				2
143 #define IPR_NUM_CFG_CHG_HCAMS				2
144 #define IPR_NUM_HCAM_QUEUE				12
145 #define IPR_NUM_HCAMS	(IPR_NUM_LOG_HCAMS + IPR_NUM_CFG_CHG_HCAMS)
146 #define IPR_MAX_HCAMS	(IPR_NUM_HCAMS + IPR_NUM_HCAM_QUEUE)
147 
148 #define IPR_MAX_SIS64_TARGETS_PER_BUS			1024
149 #define IPR_MAX_SIS64_LUNS_PER_TARGET			0xffffffff
150 
151 #define IPR_MAX_NUM_TARGETS_PER_BUS			256
152 #define IPR_MAX_NUM_LUNS_PER_TARGET			256
153 #define IPR_VSET_BUS					0xff
154 #define IPR_IOA_BUS						0xff
155 #define IPR_IOA_TARGET					0xff
156 #define IPR_IOA_LUN						0xff
157 #define IPR_MAX_NUM_BUSES				16
158 
159 #define IPR_NUM_RESET_RELOAD_RETRIES		3
160 
161 /* We need resources for HCAMS, IOA reset, IOA bringdown, and ERP */
162 #define IPR_NUM_INTERNAL_CMD_BLKS	(IPR_NUM_HCAMS + \
163                                      ((IPR_NUM_RESET_RELOAD_RETRIES + 1) * 2) + 4)
164 
165 #define IPR_MAX_COMMANDS		100
166 #define IPR_NUM_CMD_BLKS		(IPR_NUM_BASE_CMD_BLKS + \
167 						IPR_NUM_INTERNAL_CMD_BLKS)
168 
169 #define IPR_MAX_PHYSICAL_DEVS				192
170 #define IPR_DEFAULT_SIS64_DEVS				1024
171 #define IPR_MAX_SIS64_DEVS				4096
172 
173 #define IPR_MAX_SGLIST					64
174 #define IPR_IOA_MAX_SECTORS				32767
175 #define IPR_VSET_MAX_SECTORS				512
176 #define IPR_MAX_CDB_LEN					16
177 #define IPR_MAX_HRRQ_RETRIES				3
178 
179 #define IPR_DEFAULT_BUS_WIDTH				16
180 #define IPR_80MBs_SCSI_RATE		((80 * 10) / (IPR_DEFAULT_BUS_WIDTH / 8))
181 #define IPR_U160_SCSI_RATE	((160 * 10) / (IPR_DEFAULT_BUS_WIDTH / 8))
182 #define IPR_U320_SCSI_RATE	((320 * 10) / (IPR_DEFAULT_BUS_WIDTH / 8))
183 #define IPR_MAX_SCSI_RATE(width) ((320 * 10) / ((width) / 8))
184 
185 #define IPR_IOA_RES_HANDLE				0xffffffff
186 #define IPR_INVALID_RES_HANDLE			0
187 #define IPR_IOA_RES_ADDR				0x00ffffff
188 
189 /*
190  * Adapter Commands
191  */
192 #define IPR_CANCEL_REQUEST				0xC0
193 #define	IPR_CANCEL_64BIT_IOARCB			0x01
194 #define IPR_QUERY_RSRC_STATE				0xC2
195 #define IPR_RESET_DEVICE				0xC3
196 #define	IPR_RESET_TYPE_SELECT				0x80
197 #define	IPR_LUN_RESET					0x40
198 #define	IPR_TARGET_RESET					0x20
199 #define	IPR_BUS_RESET					0x10
200 #define	IPR_ATA_PHY_RESET					0x80
201 #define IPR_ID_HOST_RR_Q				0xC4
202 #define IPR_QUERY_IOA_CONFIG				0xC5
203 #define IPR_CANCEL_ALL_REQUESTS			0xCE
204 #define IPR_HOST_CONTROLLED_ASYNC			0xCF
205 #define	IPR_HCAM_CDB_OP_CODE_CONFIG_CHANGE	0x01
206 #define	IPR_HCAM_CDB_OP_CODE_LOG_DATA		0x02
207 #define IPR_SET_SUPPORTED_DEVICES			0xFB
208 #define IPR_SET_ALL_SUPPORTED_DEVICES			0x80
209 #define IPR_IOA_SHUTDOWN				0xF7
210 #define	IPR_WR_BUF_DOWNLOAD_AND_SAVE			0x05
211 #define IPR_IOA_SERVICE_ACTION				0xD2
212 
213 /* IOA Service Actions */
214 #define IPR_IOA_SA_CHANGE_CACHE_PARAMS			0x14
215 
216 /*
217  * Timeouts
218  */
219 #define IPR_SHUTDOWN_TIMEOUT			(ipr_fastfail ? 60 * HZ : 10 * 60 * HZ)
220 #define IPR_VSET_RW_TIMEOUT			(ipr_fastfail ? 30 * HZ : 2 * 60 * HZ)
221 #define IPR_ABBREV_SHUTDOWN_TIMEOUT		(10 * HZ)
222 #define IPR_DUAL_IOA_ABBR_SHUTDOWN_TO	(2 * 60 * HZ)
223 #define IPR_DEVICE_RESET_TIMEOUT		(ipr_fastfail ? 10 * HZ : 30 * HZ)
224 #define IPR_CANCEL_TIMEOUT			(ipr_fastfail ? 10 * HZ : 30 * HZ)
225 #define IPR_CANCEL_ALL_TIMEOUT		(ipr_fastfail ? 10 * HZ : 30 * HZ)
226 #define IPR_ABORT_TASK_TIMEOUT		(ipr_fastfail ? 10 * HZ : 30 * HZ)
227 #define IPR_INTERNAL_TIMEOUT			(ipr_fastfail ? 10 * HZ : 30 * HZ)
228 #define IPR_WRITE_BUFFER_TIMEOUT		(30 * 60 * HZ)
229 #define IPR_SET_SUP_DEVICE_TIMEOUT		(2 * 60 * HZ)
230 #define IPR_REQUEST_SENSE_TIMEOUT		(10 * HZ)
231 #define IPR_OPERATIONAL_TIMEOUT		(5 * 60)
232 #define IPR_LONG_OPERATIONAL_TIMEOUT	(12 * 60)
233 #define IPR_WAIT_FOR_RESET_TIMEOUT		(2 * HZ)
234 #define IPR_CHECK_FOR_RESET_TIMEOUT		(HZ / 10)
235 #define IPR_WAIT_FOR_BIST_TIMEOUT		(2 * HZ)
236 #define IPR_PCI_ERROR_RECOVERY_TIMEOUT	(120 * HZ)
237 #define IPR_PCI_RESET_TIMEOUT			(HZ / 2)
238 #define IPR_SIS32_DUMP_TIMEOUT			(15 * HZ)
239 #define IPR_SIS64_DUMP_TIMEOUT			(40 * HZ)
240 #define IPR_DUMP_DELAY_SECONDS			4
241 #define IPR_DUMP_DELAY_TIMEOUT			(IPR_DUMP_DELAY_SECONDS * HZ)
242 
243 /*
244  * SCSI Literals
245  */
246 #define IPR_VENDOR_ID_LEN			8
247 #define IPR_PROD_ID_LEN				16
248 #define IPR_SERIAL_NUM_LEN			8
249 
250 /*
251  * Hardware literals
252  */
253 #define IPR_FMT2_MBX_ADDR_MASK				0x0fffffff
254 #define IPR_FMT2_MBX_BAR_SEL_MASK			0xf0000000
255 #define IPR_FMT2_MKR_BAR_SEL_SHIFT			28
256 #define IPR_GET_FMT2_BAR_SEL(mbx) \
257 (((mbx) & IPR_FMT2_MBX_BAR_SEL_MASK) >> IPR_FMT2_MKR_BAR_SEL_SHIFT)
258 #define IPR_SDT_FMT2_BAR0_SEL				0x0
259 #define IPR_SDT_FMT2_BAR1_SEL				0x1
260 #define IPR_SDT_FMT2_BAR2_SEL				0x2
261 #define IPR_SDT_FMT2_BAR3_SEL				0x3
262 #define IPR_SDT_FMT2_BAR4_SEL				0x4
263 #define IPR_SDT_FMT2_BAR5_SEL				0x5
264 #define IPR_SDT_FMT2_EXP_ROM_SEL			0x8
265 #define IPR_FMT2_SDT_READY_TO_USE			0xC4D4E3F2
266 #define IPR_FMT3_SDT_READY_TO_USE			0xC4D4E3F3
267 #define IPR_DOORBELL					0x82800000
268 #define IPR_RUNTIME_RESET				0x40000000
269 
270 #define IPR_IPL_INIT_MIN_STAGE_TIME			5
271 #define IPR_IPL_INIT_DEFAULT_STAGE_TIME                 30
272 #define IPR_IPL_INIT_STAGE_UNKNOWN			0x0
273 #define IPR_IPL_INIT_STAGE_TRANSOP			0xB0000000
274 #define IPR_IPL_INIT_STAGE_MASK				0xff000000
275 #define IPR_IPL_INIT_STAGE_TIME_MASK			0x0000ffff
276 #define IPR_PCII_IPL_STAGE_CHANGE			(0x80000000 >> 0)
277 
278 #define IPR_PCII_MAILBOX_STABLE				(0x80000000 >> 4)
279 #define IPR_WAIT_FOR_MAILBOX				(2 * HZ)
280 
281 #define IPR_PCII_IOA_TRANS_TO_OPER			(0x80000000 >> 0)
282 #define IPR_PCII_IOARCB_XFER_FAILED			(0x80000000 >> 3)
283 #define IPR_PCII_IOA_UNIT_CHECKED			(0x80000000 >> 4)
284 #define IPR_PCII_NO_HOST_RRQ				(0x80000000 >> 5)
285 #define IPR_PCII_CRITICAL_OPERATION			(0x80000000 >> 6)
286 #define IPR_PCII_IO_DEBUG_ACKNOWLEDGE		(0x80000000 >> 7)
287 #define IPR_PCII_IOARRIN_LOST				(0x80000000 >> 27)
288 #define IPR_PCII_MMIO_ERROR				(0x80000000 >> 28)
289 #define IPR_PCII_PROC_ERR_STATE			(0x80000000 >> 29)
290 #define IPR_PCII_HRRQ_UPDATED				(0x80000000 >> 30)
291 #define IPR_PCII_CORE_ISSUED_RST_REQ		(0x80000000 >> 31)
292 
293 #define IPR_PCII_ERROR_INTERRUPTS \
294 (IPR_PCII_IOARCB_XFER_FAILED | IPR_PCII_IOA_UNIT_CHECKED | \
295 IPR_PCII_NO_HOST_RRQ | IPR_PCII_IOARRIN_LOST | IPR_PCII_MMIO_ERROR)
296 
297 #define IPR_PCII_OPER_INTERRUPTS \
298 (IPR_PCII_ERROR_INTERRUPTS | IPR_PCII_HRRQ_UPDATED | IPR_PCII_IOA_TRANS_TO_OPER)
299 
300 #define IPR_UPROCI_RESET_ALERT			(0x80000000 >> 7)
301 #define IPR_UPROCI_IO_DEBUG_ALERT			(0x80000000 >> 9)
302 #define IPR_UPROCI_SIS64_START_BIST			(0x80000000 >> 23)
303 
304 #define IPR_LDUMP_MAX_LONG_ACK_DELAY_IN_USEC		200000	/* 200 ms */
305 #define IPR_LDUMP_MAX_SHORT_ACK_DELAY_IN_USEC		200000	/* 200 ms */
306 
307 /*
308  * Dump literals
309  */
310 #define IPR_FMT2_MAX_IOA_DUMP_SIZE			(4 * 1024 * 1024)
311 #define IPR_FMT3_MAX_IOA_DUMP_SIZE			(80 * 1024 * 1024)
312 #define IPR_FMT2_NUM_SDT_ENTRIES			511
313 #define IPR_FMT3_NUM_SDT_ENTRIES			0xFFF
314 #define IPR_FMT2_MAX_NUM_DUMP_PAGES	((IPR_FMT2_MAX_IOA_DUMP_SIZE / PAGE_SIZE) + 1)
315 #define IPR_FMT3_MAX_NUM_DUMP_PAGES	((IPR_FMT3_MAX_IOA_DUMP_SIZE / PAGE_SIZE) + 1)
316 
317 /*
318  * Misc literals
319  */
320 #define IPR_NUM_IOADL_ENTRIES			IPR_MAX_SGLIST
321 #define IPR_MAX_MSIX_VECTORS		0x10
322 #define IPR_MAX_HRRQ_NUM		0x10
323 #define IPR_INIT_HRRQ			0x0
324 
325 /*
326  * Adapter interface types
327  */
328 
329 struct ipr_res_addr {
330 	u8 reserved;
331 	u8 bus;
332 	u8 target;
333 	u8 lun;
334 #define IPR_GET_PHYS_LOC(res_addr) \
335 	(((res_addr).bus << 16) | ((res_addr).target << 8) | (res_addr).lun)
336 }__attribute__((packed, aligned (4)));
337 
338 struct ipr_std_inq_vpids {
339 	u8 vendor_id[IPR_VENDOR_ID_LEN];
340 	u8 product_id[IPR_PROD_ID_LEN];
341 }__attribute__((packed));
342 
343 struct ipr_vpd {
344 	struct ipr_std_inq_vpids vpids;
345 	u8 sn[IPR_SERIAL_NUM_LEN];
346 }__attribute__((packed));
347 
348 struct ipr_ext_vpd {
349 	struct ipr_vpd vpd;
350 	__be32 wwid[2];
351 }__attribute__((packed));
352 
353 struct ipr_ext_vpd64 {
354 	struct ipr_vpd vpd;
355 	__be32 wwid[4];
356 }__attribute__((packed));
357 
358 struct ipr_std_inq_data {
359 	u8 peri_qual_dev_type;
360 #define IPR_STD_INQ_PERI_QUAL(peri) ((peri) >> 5)
361 #define IPR_STD_INQ_PERI_DEV_TYPE(peri) ((peri) & 0x1F)
362 
363 	u8 removeable_medium_rsvd;
364 #define IPR_STD_INQ_REMOVEABLE_MEDIUM 0x80
365 
366 #define IPR_IS_DASD_DEVICE(std_inq) \
367 ((IPR_STD_INQ_PERI_DEV_TYPE((std_inq).peri_qual_dev_type) == TYPE_DISK) && \
368 !(((std_inq).removeable_medium_rsvd) & IPR_STD_INQ_REMOVEABLE_MEDIUM))
369 
370 #define IPR_IS_SES_DEVICE(std_inq) \
371 (IPR_STD_INQ_PERI_DEV_TYPE((std_inq).peri_qual_dev_type) == TYPE_ENCLOSURE)
372 
373 	u8 version;
374 	u8 aen_naca_fmt;
375 	u8 additional_len;
376 	u8 sccs_rsvd;
377 	u8 bq_enc_multi;
378 	u8 sync_cmdq_flags;
379 
380 	struct ipr_std_inq_vpids vpids;
381 
382 	u8 ros_rsvd_ram_rsvd[4];
383 
384 	u8 serial_num[IPR_SERIAL_NUM_LEN];
385 }__attribute__ ((packed));
386 
387 #define IPR_RES_TYPE_AF_DASD		0x00
388 #define IPR_RES_TYPE_GENERIC_SCSI	0x01
389 #define IPR_RES_TYPE_VOLUME_SET		0x02
390 #define IPR_RES_TYPE_REMOTE_AF_DASD	0x03
391 #define IPR_RES_TYPE_GENERIC_ATA	0x04
392 #define IPR_RES_TYPE_ARRAY		0x05
393 #define IPR_RES_TYPE_IOAFP		0xff
394 
395 struct ipr_config_table_entry {
396 	u8 proto;
397 #define IPR_PROTO_SATA			0x02
398 #define IPR_PROTO_SATA_ATAPI		0x03
399 #define IPR_PROTO_SAS_STP		0x06
400 #define IPR_PROTO_SAS_STP_ATAPI		0x07
401 	u8 array_id;
402 	u8 flags;
403 #define IPR_IS_IOA_RESOURCE		0x80
404 	u8 rsvd_subtype;
405 
406 #define IPR_QUEUEING_MODEL(res)	((((res)->flags) & 0x70) >> 4)
407 #define IPR_QUEUE_FROZEN_MODEL		0
408 #define IPR_QUEUE_NACA_MODEL		1
409 
410 	struct ipr_res_addr res_addr;
411 	__be32 res_handle;
412 	__be32 lun_wwn[2];
413 	struct ipr_std_inq_data std_inq_data;
414 }__attribute__ ((packed, aligned (4)));
415 
416 struct ipr_config_table_entry64 {
417 	u8 res_type;
418 	u8 proto;
419 	u8 vset_num;
420 	u8 array_id;
421 	__be16 flags;
422 	__be16 res_flags;
423 #define IPR_QUEUEING_MODEL64(res) ((((res)->res_flags) & 0x7000) >> 12)
424 	__be32 res_handle;
425 	u8 dev_id_type;
426 	u8 reserved[3];
427 	__be64 dev_id;
428 	__be64 lun;
429 	__be64 lun_wwn[2];
430 #define IPR_MAX_RES_PATH_LENGTH		48
431 #define IPR_RES_PATH_BYTES		8
432 	__be64 res_path;
433 	struct ipr_std_inq_data std_inq_data;
434 	u8 reserved2[4];
435 	__be64 reserved3[2];
436 	u8 reserved4[8];
437 }__attribute__ ((packed, aligned (8)));
438 
439 struct ipr_config_table_hdr {
440 	u8 num_entries;
441 	u8 flags;
442 #define IPR_UCODE_DOWNLOAD_REQ	0x10
443 	__be16 reserved;
444 }__attribute__((packed, aligned (4)));
445 
446 struct ipr_config_table_hdr64 {
447 	__be16 num_entries;
448 	__be16 reserved;
449 	u8 flags;
450 	u8 reserved2[11];
451 }__attribute__((packed, aligned (4)));
452 
453 struct ipr_config_table {
454 	struct ipr_config_table_hdr hdr;
455 	struct ipr_config_table_entry dev[];
456 }__attribute__((packed, aligned (4)));
457 
458 struct ipr_config_table64 {
459 	struct ipr_config_table_hdr64 hdr64;
460 	struct ipr_config_table_entry64 dev[];
461 }__attribute__((packed, aligned (8)));
462 
463 struct ipr_config_table_entry_wrapper {
464 	union {
465 		struct ipr_config_table_entry *cfgte;
466 		struct ipr_config_table_entry64 *cfgte64;
467 	} u;
468 };
469 
470 struct ipr_hostrcb_cfg_ch_not {
471 	union {
472 		struct ipr_config_table_entry cfgte;
473 		struct ipr_config_table_entry64 cfgte64;
474 	} u;
475 	u8 reserved[936];
476 }__attribute__((packed, aligned (4)));
477 
478 struct ipr_supported_device {
479 	__be16 data_length;
480 	u8 reserved;
481 	u8 num_records;
482 	struct ipr_std_inq_vpids vpids;
483 	u8 reserved2[16];
484 }__attribute__((packed, aligned (4)));
485 
486 struct ipr_hrr_queue {
487 	struct ipr_ioa_cfg *ioa_cfg;
488 	__be32 *host_rrq;
489 	dma_addr_t host_rrq_dma;
490 #define IPR_HRRQ_REQ_RESP_HANDLE_MASK	0xfffffffc
491 #define IPR_HRRQ_RESP_BIT_SET		0x00000002
492 #define IPR_HRRQ_TOGGLE_BIT		0x00000001
493 #define IPR_HRRQ_REQ_RESP_HANDLE_SHIFT	2
494 #define IPR_ID_HRRQ_SELE_ENABLE		0x02
495 	volatile __be32 *hrrq_start;
496 	volatile __be32 *hrrq_end;
497 	volatile __be32 *hrrq_curr;
498 
499 	struct list_head hrrq_free_q;
500 	struct list_head hrrq_pending_q;
501 	spinlock_t _lock;
502 	spinlock_t *lock;
503 
504 	volatile u32 toggle_bit;
505 	u32 size;
506 	u32 min_cmd_id;
507 	u32 max_cmd_id;
508 	u8 allow_interrupts:1;
509 	u8 ioa_is_dead:1;
510 	u8 allow_cmds:1;
511 	u8 removing_ioa:1;
512 
513 	struct irq_poll iopoll;
514 };
515 
516 /* Command packet structure */
517 struct ipr_cmd_pkt {
518 	u8 reserved;		/* Reserved by IOA */
519 	u8 hrrq_id;
520 	u8 request_type;
521 #define IPR_RQTYPE_SCSICDB		0x00
522 #define IPR_RQTYPE_IOACMD		0x01
523 #define IPR_RQTYPE_HCAM			0x02
524 #define IPR_RQTYPE_ATA_PASSTHRU	0x04
525 #define IPR_RQTYPE_PIPE			0x05
526 
527 	u8 reserved2;
528 
529 	u8 flags_hi;
530 #define IPR_FLAGS_HI_WRITE_NOT_READ		0x80
531 #define IPR_FLAGS_HI_NO_ULEN_CHK		0x20
532 #define IPR_FLAGS_HI_SYNC_OVERRIDE		0x10
533 #define IPR_FLAGS_HI_SYNC_COMPLETE		0x08
534 #define IPR_FLAGS_HI_NO_LINK_DESC		0x04
535 
536 	u8 flags_lo;
537 #define IPR_FLAGS_LO_ALIGNED_BFR		0x20
538 #define IPR_FLAGS_LO_DELAY_AFTER_RST		0x10
539 #define IPR_FLAGS_LO_UNTAGGED_TASK		0x00
540 #define IPR_FLAGS_LO_SIMPLE_TASK		0x02
541 #define IPR_FLAGS_LO_ORDERED_TASK		0x04
542 #define IPR_FLAGS_LO_HEAD_OF_Q_TASK		0x06
543 #define IPR_FLAGS_LO_ACA_TASK			0x08
544 
545 	u8 cdb[16];
546 	__be16 timeout;
547 }__attribute__ ((packed, aligned(4)));
548 
549 struct ipr_ioarcb_ata_regs {	/* 22 bytes */
550 	u8 flags;
551 #define IPR_ATA_FLAG_PACKET_CMD			0x80
552 #define IPR_ATA_FLAG_XFER_TYPE_DMA			0x40
553 #define IPR_ATA_FLAG_STATUS_ON_GOOD_COMPLETION	0x20
554 	u8 reserved[3];
555 
556 	__be16 data;
557 	u8 feature;
558 	u8 nsect;
559 	u8 lbal;
560 	u8 lbam;
561 	u8 lbah;
562 	u8 device;
563 	u8 command;
564 	u8 reserved2[3];
565 	u8 hob_feature;
566 	u8 hob_nsect;
567 	u8 hob_lbal;
568 	u8 hob_lbam;
569 	u8 hob_lbah;
570 	u8 ctl;
571 }__attribute__ ((packed, aligned(2)));
572 
573 struct ipr_ioadl_desc {
574 	__be32 flags_and_data_len;
575 #define IPR_IOADL_FLAGS_MASK		0xff000000
576 #define IPR_IOADL_GET_FLAGS(x) (be32_to_cpu(x) & IPR_IOADL_FLAGS_MASK)
577 #define IPR_IOADL_DATA_LEN_MASK		0x00ffffff
578 #define IPR_IOADL_GET_DATA_LEN(x) (be32_to_cpu(x) & IPR_IOADL_DATA_LEN_MASK)
579 #define IPR_IOADL_FLAGS_READ		0x48000000
580 #define IPR_IOADL_FLAGS_READ_LAST	0x49000000
581 #define IPR_IOADL_FLAGS_WRITE		0x68000000
582 #define IPR_IOADL_FLAGS_WRITE_LAST	0x69000000
583 #define IPR_IOADL_FLAGS_LAST		0x01000000
584 
585 	__be32 address;
586 }__attribute__((packed, aligned (8)));
587 
588 struct ipr_ioadl64_desc {
589 	__be32 flags;
590 	__be32 data_len;
591 	__be64 address;
592 }__attribute__((packed, aligned (16)));
593 
594 struct ipr_ata64_ioadl {
595 	struct ipr_ioarcb_ata_regs regs;
596 	u16 reserved[5];
597 	struct ipr_ioadl64_desc ioadl64[IPR_NUM_IOADL_ENTRIES];
598 }__attribute__((packed, aligned (16)));
599 
600 struct ipr_ioarcb_add_data {
601 	union {
602 		struct ipr_ioarcb_ata_regs regs;
603 		struct ipr_ioadl_desc ioadl[5];
604 		__be32 add_cmd_parms[10];
605 	} u;
606 }__attribute__ ((packed, aligned (4)));
607 
608 struct ipr_ioarcb_sis64_add_addr_ecb {
609 	__be64 ioasa_host_pci_addr;
610 	__be64 data_ioadl_addr;
611 	__be64 reserved;
612 	__be32 ext_control_buf[4];
613 }__attribute__((packed, aligned (8)));
614 
615 /* IOA Request Control Block    128 bytes  */
616 struct ipr_ioarcb {
617 	union {
618 		__be32 ioarcb_host_pci_addr;
619 		__be64 ioarcb_host_pci_addr64;
620 	} a;
621 	__be32 res_handle;
622 	__be32 host_response_handle;
623 	__be32 reserved1;
624 	__be32 reserved2;
625 	__be32 reserved3;
626 
627 	__be32 data_transfer_length;
628 	__be32 read_data_transfer_length;
629 	__be32 write_ioadl_addr;
630 	__be32 ioadl_len;
631 	__be32 read_ioadl_addr;
632 	__be32 read_ioadl_len;
633 
634 	__be32 ioasa_host_pci_addr;
635 	__be16 ioasa_len;
636 	__be16 reserved4;
637 
638 	struct ipr_cmd_pkt cmd_pkt;
639 
640 	__be16 add_cmd_parms_offset;
641 	__be16 add_cmd_parms_len;
642 
643 	union {
644 		struct ipr_ioarcb_add_data add_data;
645 		struct ipr_ioarcb_sis64_add_addr_ecb sis64_addr_data;
646 	} u;
647 
648 }__attribute__((packed, aligned (4)));
649 
650 struct ipr_ioasa_vset {
651 	__be32 failing_lba_hi;
652 	__be32 failing_lba_lo;
653 	__be32 reserved;
654 }__attribute__((packed, aligned (4)));
655 
656 struct ipr_ioasa_af_dasd {
657 	__be32 failing_lba;
658 	__be32 reserved[2];
659 }__attribute__((packed, aligned (4)));
660 
661 struct ipr_ioasa_gpdd {
662 	u8 end_state;
663 	u8 bus_phase;
664 	__be16 reserved;
665 	__be32 ioa_data[2];
666 }__attribute__((packed, aligned (4)));
667 
668 struct ipr_ioasa_gata {
669 	u8 error;
670 	u8 nsect;		/* Interrupt reason */
671 	u8 lbal;
672 	u8 lbam;
673 	u8 lbah;
674 	u8 device;
675 	u8 status;
676 	u8 alt_status;	/* ATA CTL */
677 	u8 hob_nsect;
678 	u8 hob_lbal;
679 	u8 hob_lbam;
680 	u8 hob_lbah;
681 }__attribute__((packed, aligned (4)));
682 
683 struct ipr_auto_sense {
684 	__be16 auto_sense_len;
685 	__be16 ioa_data_len;
686 	__be32 data[SCSI_SENSE_BUFFERSIZE/sizeof(__be32)];
687 };
688 
689 struct ipr_ioasa_hdr {
690 	__be32 ioasc;
691 #define IPR_IOASC_SENSE_KEY(ioasc) ((ioasc) >> 24)
692 #define IPR_IOASC_SENSE_CODE(ioasc) (((ioasc) & 0x00ff0000) >> 16)
693 #define IPR_IOASC_SENSE_QUAL(ioasc) (((ioasc) & 0x0000ff00) >> 8)
694 #define IPR_IOASC_SENSE_STATUS(ioasc) ((ioasc) & 0x000000ff)
695 
696 	__be16 ret_stat_len;	/* Length of the returned IOASA */
697 
698 	__be16 avail_stat_len;	/* Total Length of status available. */
699 
700 	__be32 residual_data_len;	/* number of bytes in the host data */
701 	/* buffers that were not used by the IOARCB command. */
702 
703 	__be32 ilid;
704 #define IPR_NO_ILID			0
705 #define IPR_DRIVER_ILID		0xffffffff
706 
707 	__be32 fd_ioasc;
708 
709 	__be32 fd_phys_locator;
710 
711 	__be32 fd_res_handle;
712 
713 	__be32 ioasc_specific;	/* status code specific field */
714 #define IPR_ADDITIONAL_STATUS_FMT		0x80000000
715 #define IPR_AUTOSENSE_VALID			0x40000000
716 #define IPR_ATA_DEVICE_WAS_RESET		0x20000000
717 #define IPR_IOASC_SPECIFIC_MASK		0x00ffffff
718 #define IPR_FIELD_POINTER_VALID		(0x80000000 >> 8)
719 #define IPR_FIELD_POINTER_MASK		0x0000ffff
720 
721 }__attribute__((packed, aligned (4)));
722 
723 struct ipr_ioasa {
724 	struct ipr_ioasa_hdr hdr;
725 
726 	union {
727 		struct ipr_ioasa_vset vset;
728 		struct ipr_ioasa_af_dasd dasd;
729 		struct ipr_ioasa_gpdd gpdd;
730 		struct ipr_ioasa_gata gata;
731 	} u;
732 
733 	struct ipr_auto_sense auto_sense;
734 }__attribute__((packed, aligned (4)));
735 
736 struct ipr_ioasa64 {
737 	struct ipr_ioasa_hdr hdr;
738 	u8 fd_res_path[8];
739 
740 	union {
741 		struct ipr_ioasa_vset vset;
742 		struct ipr_ioasa_af_dasd dasd;
743 		struct ipr_ioasa_gpdd gpdd;
744 		struct ipr_ioasa_gata gata;
745 	} u;
746 
747 	struct ipr_auto_sense auto_sense;
748 }__attribute__((packed, aligned (4)));
749 
750 struct ipr_mode_parm_hdr {
751 	u8 length;
752 	u8 medium_type;
753 	u8 device_spec_parms;
754 	u8 block_desc_len;
755 }__attribute__((packed));
756 
757 struct ipr_mode_pages {
758 	struct ipr_mode_parm_hdr hdr;
759 	u8 data[255 - sizeof(struct ipr_mode_parm_hdr)];
760 }__attribute__((packed));
761 
762 struct ipr_mode_page_hdr {
763 	u8 ps_page_code;
764 #define IPR_MODE_PAGE_PS	0x80
765 #define IPR_GET_MODE_PAGE_CODE(hdr) ((hdr)->ps_page_code & 0x3F)
766 	u8 page_length;
767 }__attribute__ ((packed));
768 
769 struct ipr_dev_bus_entry {
770 	struct ipr_res_addr res_addr;
771 	u8 flags;
772 #define IPR_SCSI_ATTR_ENABLE_QAS			0x80
773 #define IPR_SCSI_ATTR_DISABLE_QAS			0x40
774 #define IPR_SCSI_ATTR_QAS_MASK				0xC0
775 #define IPR_SCSI_ATTR_ENABLE_TM				0x20
776 #define IPR_SCSI_ATTR_NO_TERM_PWR			0x10
777 #define IPR_SCSI_ATTR_TM_SUPPORTED			0x08
778 #define IPR_SCSI_ATTR_LVD_TO_SE_NOT_ALLOWED	0x04
779 
780 	u8 scsi_id;
781 	u8 bus_width;
782 	u8 extended_reset_delay;
783 #define IPR_EXTENDED_RESET_DELAY	7
784 
785 	__be32 max_xfer_rate;
786 
787 	u8 spinup_delay;
788 	u8 reserved3;
789 	__be16 reserved4;
790 }__attribute__((packed, aligned (4)));
791 
792 struct ipr_mode_page28 {
793 	struct ipr_mode_page_hdr hdr;
794 	u8 num_entries;
795 	u8 entry_length;
796 	struct ipr_dev_bus_entry bus[];
797 }__attribute__((packed));
798 
799 struct ipr_mode_page24 {
800 	struct ipr_mode_page_hdr hdr;
801 	u8 flags;
802 #define IPR_ENABLE_DUAL_IOA_AF 0x80
803 }__attribute__((packed));
804 
805 struct ipr_ioa_vpd {
806 	struct ipr_std_inq_data std_inq_data;
807 	u8 ascii_part_num[12];
808 	u8 reserved[40];
809 	u8 ascii_plant_code[4];
810 }__attribute__((packed));
811 
812 struct ipr_inquiry_page3 {
813 	u8 peri_qual_dev_type;
814 	u8 page_code;
815 	u8 reserved1;
816 	u8 page_length;
817 	u8 ascii_len;
818 	u8 reserved2[3];
819 	u8 load_id[4];
820 	u8 major_release;
821 	u8 card_type;
822 	u8 minor_release[2];
823 	u8 ptf_number[4];
824 	u8 patch_number[4];
825 }__attribute__((packed));
826 
827 struct ipr_inquiry_cap {
828 	u8 peri_qual_dev_type;
829 	u8 page_code;
830 	u8 reserved1;
831 	u8 page_length;
832 	u8 ascii_len;
833 	u8 reserved2;
834 	u8 sis_version[2];
835 	u8 cap;
836 #define IPR_CAP_DUAL_IOA_RAID		0x80
837 	u8 reserved3[15];
838 }__attribute__((packed));
839 
840 #define IPR_INQUIRY_PAGE0_ENTRIES 20
841 struct ipr_inquiry_page0 {
842 	u8 peri_qual_dev_type;
843 	u8 page_code;
844 	u8 reserved1;
845 	u8 len;
846 	u8 page[IPR_INQUIRY_PAGE0_ENTRIES];
847 }__attribute__((packed));
848 
849 struct ipr_inquiry_pageC4 {
850 	u8 peri_qual_dev_type;
851 	u8 page_code;
852 	u8 reserved1;
853 	u8 len;
854 	u8 cache_cap[4];
855 #define IPR_CAP_SYNC_CACHE		0x08
856 	u8 reserved2[20];
857 } __packed;
858 
859 struct ipr_hostrcb_device_data_entry {
860 	struct ipr_vpd vpd;
861 	struct ipr_res_addr dev_res_addr;
862 	struct ipr_vpd new_vpd;
863 	struct ipr_vpd ioa_last_with_dev_vpd;
864 	struct ipr_vpd cfc_last_with_dev_vpd;
865 	__be32 ioa_data[5];
866 }__attribute__((packed, aligned (4)));
867 
868 struct ipr_hostrcb_device_data_entry_enhanced {
869 	struct ipr_ext_vpd vpd;
870 	u8 ccin[4];
871 	struct ipr_res_addr dev_res_addr;
872 	struct ipr_ext_vpd new_vpd;
873 	u8 new_ccin[4];
874 	struct ipr_ext_vpd ioa_last_with_dev_vpd;
875 	struct ipr_ext_vpd cfc_last_with_dev_vpd;
876 }__attribute__((packed, aligned (4)));
877 
878 struct ipr_hostrcb64_device_data_entry_enhanced {
879 	struct ipr_ext_vpd vpd;
880 	u8 ccin[4];
881 	u8 res_path[8];
882 	struct ipr_ext_vpd new_vpd;
883 	u8 new_ccin[4];
884 	struct ipr_ext_vpd ioa_last_with_dev_vpd;
885 	struct ipr_ext_vpd cfc_last_with_dev_vpd;
886 }__attribute__((packed, aligned (4)));
887 
888 struct ipr_hostrcb_array_data_entry {
889 	struct ipr_vpd vpd;
890 	struct ipr_res_addr expected_dev_res_addr;
891 	struct ipr_res_addr dev_res_addr;
892 }__attribute__((packed, aligned (4)));
893 
894 struct ipr_hostrcb64_array_data_entry {
895 	struct ipr_ext_vpd vpd;
896 	u8 ccin[4];
897 	u8 expected_res_path[8];
898 	u8 res_path[8];
899 }__attribute__((packed, aligned (4)));
900 
901 struct ipr_hostrcb_array_data_entry_enhanced {
902 	struct ipr_ext_vpd vpd;
903 	u8 ccin[4];
904 	struct ipr_res_addr expected_dev_res_addr;
905 	struct ipr_res_addr dev_res_addr;
906 }__attribute__((packed, aligned (4)));
907 
908 struct ipr_hostrcb_type_ff_error {
909 	__be32 ioa_data[758];
910 }__attribute__((packed, aligned (4)));
911 
912 struct ipr_hostrcb_type_01_error {
913 	__be32 seek_counter;
914 	__be32 read_counter;
915 	u8 sense_data[32];
916 	__be32 ioa_data[236];
917 }__attribute__((packed, aligned (4)));
918 
919 struct ipr_hostrcb_type_21_error {
920 	__be32 wwn[4];
921 	u8 res_path[8];
922 	u8 primary_problem_desc[32];
923 	u8 second_problem_desc[32];
924 	__be32 sense_data[8];
925 	__be32 cdb[4];
926 	__be32 residual_trans_length;
927 	__be32 length_of_error;
928 	__be32 ioa_data[236];
929 }__attribute__((packed, aligned (4)));
930 
931 struct ipr_hostrcb_type_02_error {
932 	struct ipr_vpd ioa_vpd;
933 	struct ipr_vpd cfc_vpd;
934 	struct ipr_vpd ioa_last_attached_to_cfc_vpd;
935 	struct ipr_vpd cfc_last_attached_to_ioa_vpd;
936 	__be32 ioa_data[3];
937 }__attribute__((packed, aligned (4)));
938 
939 struct ipr_hostrcb_type_12_error {
940 	struct ipr_ext_vpd ioa_vpd;
941 	struct ipr_ext_vpd cfc_vpd;
942 	struct ipr_ext_vpd ioa_last_attached_to_cfc_vpd;
943 	struct ipr_ext_vpd cfc_last_attached_to_ioa_vpd;
944 	__be32 ioa_data[3];
945 }__attribute__((packed, aligned (4)));
946 
947 struct ipr_hostrcb_type_03_error {
948 	struct ipr_vpd ioa_vpd;
949 	struct ipr_vpd cfc_vpd;
950 	__be32 errors_detected;
951 	__be32 errors_logged;
952 	u8 ioa_data[12];
953 	struct ipr_hostrcb_device_data_entry dev[3];
954 }__attribute__((packed, aligned (4)));
955 
956 struct ipr_hostrcb_type_13_error {
957 	struct ipr_ext_vpd ioa_vpd;
958 	struct ipr_ext_vpd cfc_vpd;
959 	__be32 errors_detected;
960 	__be32 errors_logged;
961 	struct ipr_hostrcb_device_data_entry_enhanced dev[3];
962 }__attribute__((packed, aligned (4)));
963 
964 struct ipr_hostrcb_type_23_error {
965 	struct ipr_ext_vpd ioa_vpd;
966 	struct ipr_ext_vpd cfc_vpd;
967 	__be32 errors_detected;
968 	__be32 errors_logged;
969 	struct ipr_hostrcb64_device_data_entry_enhanced dev[3];
970 }__attribute__((packed, aligned (4)));
971 
972 struct ipr_hostrcb_type_04_error {
973 	struct ipr_vpd ioa_vpd;
974 	struct ipr_vpd cfc_vpd;
975 	u8 ioa_data[12];
976 	struct ipr_hostrcb_array_data_entry array_member[10];
977 	__be32 exposed_mode_adn;
978 	__be32 array_id;
979 	struct ipr_vpd incomp_dev_vpd;
980 	__be32 ioa_data2;
981 	struct ipr_hostrcb_array_data_entry array_member2[8];
982 	struct ipr_res_addr last_func_vset_res_addr;
983 	u8 vset_serial_num[IPR_SERIAL_NUM_LEN];
984 	u8 protection_level[8];
985 }__attribute__((packed, aligned (4)));
986 
987 struct ipr_hostrcb_type_14_error {
988 	struct ipr_ext_vpd ioa_vpd;
989 	struct ipr_ext_vpd cfc_vpd;
990 	__be32 exposed_mode_adn;
991 	__be32 array_id;
992 	struct ipr_res_addr last_func_vset_res_addr;
993 	u8 vset_serial_num[IPR_SERIAL_NUM_LEN];
994 	u8 protection_level[8];
995 	__be32 num_entries;
996 	struct ipr_hostrcb_array_data_entry_enhanced array_member[18];
997 }__attribute__((packed, aligned (4)));
998 
999 struct ipr_hostrcb_type_24_error {
1000 	struct ipr_ext_vpd ioa_vpd;
1001 	struct ipr_ext_vpd cfc_vpd;
1002 	u8 reserved[2];
1003 	u8 exposed_mode_adn;
1004 #define IPR_INVALID_ARRAY_DEV_NUM		0xff
1005 	u8 array_id;
1006 	u8 last_res_path[8];
1007 	u8 protection_level[8];
1008 	struct ipr_ext_vpd64 array_vpd;
1009 	u8 description[16];
1010 	u8 reserved2[3];
1011 	u8 num_entries;
1012 	struct ipr_hostrcb64_array_data_entry array_member[32];
1013 }__attribute__((packed, aligned (4)));
1014 
1015 struct ipr_hostrcb_type_07_error {
1016 	u8 failure_reason[64];
1017 	struct ipr_vpd vpd;
1018 	__be32 data[222];
1019 }__attribute__((packed, aligned (4)));
1020 
1021 struct ipr_hostrcb_type_17_error {
1022 	u8 failure_reason[64];
1023 	struct ipr_ext_vpd vpd;
1024 	__be32 data[476];
1025 }__attribute__((packed, aligned (4)));
1026 
1027 struct ipr_hostrcb_config_element {
1028 	u8 type_status;
1029 #define IPR_PATH_CFG_TYPE_MASK	0xF0
1030 #define IPR_PATH_CFG_NOT_EXIST	0x00
1031 #define IPR_PATH_CFG_IOA_PORT		0x10
1032 #define IPR_PATH_CFG_EXP_PORT		0x20
1033 #define IPR_PATH_CFG_DEVICE_PORT	0x30
1034 #define IPR_PATH_CFG_DEVICE_LUN	0x40
1035 
1036 #define IPR_PATH_CFG_STATUS_MASK	0x0F
1037 #define IPR_PATH_CFG_NO_PROB		0x00
1038 #define IPR_PATH_CFG_DEGRADED		0x01
1039 #define IPR_PATH_CFG_FAILED		0x02
1040 #define IPR_PATH_CFG_SUSPECT		0x03
1041 #define IPR_PATH_NOT_DETECTED		0x04
1042 #define IPR_PATH_INCORRECT_CONN	0x05
1043 
1044 	u8 cascaded_expander;
1045 	u8 phy;
1046 	u8 link_rate;
1047 #define IPR_PHY_LINK_RATE_MASK	0x0F
1048 
1049 	__be32 wwid[2];
1050 }__attribute__((packed, aligned (4)));
1051 
1052 struct ipr_hostrcb64_config_element {
1053 	__be16 length;
1054 	u8 descriptor_id;
1055 #define IPR_DESCRIPTOR_MASK		0xC0
1056 #define IPR_DESCRIPTOR_SIS64		0x00
1057 
1058 	u8 reserved;
1059 	u8 type_status;
1060 
1061 	u8 reserved2[2];
1062 	u8 link_rate;
1063 
1064 	u8 res_path[8];
1065 	__be32 wwid[2];
1066 }__attribute__((packed, aligned (8)));
1067 
1068 struct ipr_hostrcb_fabric_desc {
1069 	__be16 length;
1070 	u8 ioa_port;
1071 	u8 cascaded_expander;
1072 	u8 phy;
1073 	u8 path_state;
1074 #define IPR_PATH_ACTIVE_MASK		0xC0
1075 #define IPR_PATH_NO_INFO		0x00
1076 #define IPR_PATH_ACTIVE			0x40
1077 #define IPR_PATH_NOT_ACTIVE		0x80
1078 
1079 #define IPR_PATH_STATE_MASK		0x0F
1080 #define IPR_PATH_STATE_NO_INFO	0x00
1081 #define IPR_PATH_HEALTHY		0x01
1082 #define IPR_PATH_DEGRADED		0x02
1083 #define IPR_PATH_FAILED			0x03
1084 
1085 	__be16 num_entries;
1086 	struct ipr_hostrcb_config_element elem[1];
1087 }__attribute__((packed, aligned (4)));
1088 
1089 struct ipr_hostrcb64_fabric_desc {
1090 	__be16 length;
1091 	u8 descriptor_id;
1092 
1093 	u8 reserved[2];
1094 	u8 path_state;
1095 
1096 	u8 reserved2[2];
1097 	u8 res_path[8];
1098 	u8 reserved3[6];
1099 	__be16 num_entries;
1100 	struct ipr_hostrcb64_config_element elem[1];
1101 }__attribute__((packed, aligned (8)));
1102 
1103 #define for_each_hrrq(hrrq, ioa_cfg) \
1104 		for (hrrq = (ioa_cfg)->hrrq; \
1105 			hrrq < ((ioa_cfg)->hrrq + (ioa_cfg)->hrrq_num); hrrq++)
1106 
1107 #define for_each_fabric_cfg(fabric, cfg) \
1108 		for (cfg = (fabric)->elem; \
1109 			cfg < ((fabric)->elem + be16_to_cpu((fabric)->num_entries)); \
1110 			cfg++)
1111 
1112 struct ipr_hostrcb_type_20_error {
1113 	u8 failure_reason[64];
1114 	u8 reserved[3];
1115 	u8 num_entries;
1116 	struct ipr_hostrcb_fabric_desc desc[1];
1117 }__attribute__((packed, aligned (4)));
1118 
1119 struct ipr_hostrcb_type_30_error {
1120 	u8 failure_reason[64];
1121 	u8 reserved[3];
1122 	u8 num_entries;
1123 	struct ipr_hostrcb64_fabric_desc desc[1];
1124 }__attribute__((packed, aligned (4)));
1125 
1126 struct ipr_hostrcb_type_41_error {
1127 	u8 failure_reason[64];
1128 	 __be32 data[200];
1129 }__attribute__((packed, aligned (4)));
1130 
1131 struct ipr_hostrcb_error {
1132 	__be32 fd_ioasc;
1133 	struct ipr_res_addr fd_res_addr;
1134 	__be32 fd_res_handle;
1135 	__be32 prc;
1136 	union {
1137 		struct ipr_hostrcb_type_ff_error type_ff_error;
1138 		struct ipr_hostrcb_type_01_error type_01_error;
1139 		struct ipr_hostrcb_type_02_error type_02_error;
1140 		struct ipr_hostrcb_type_03_error type_03_error;
1141 		struct ipr_hostrcb_type_04_error type_04_error;
1142 		struct ipr_hostrcb_type_07_error type_07_error;
1143 		struct ipr_hostrcb_type_12_error type_12_error;
1144 		struct ipr_hostrcb_type_13_error type_13_error;
1145 		struct ipr_hostrcb_type_14_error type_14_error;
1146 		struct ipr_hostrcb_type_17_error type_17_error;
1147 		struct ipr_hostrcb_type_20_error type_20_error;
1148 	} u;
1149 }__attribute__((packed, aligned (4)));
1150 
1151 struct ipr_hostrcb64_error {
1152 	__be32 fd_ioasc;
1153 	__be32 ioa_fw_level;
1154 	__be32 fd_res_handle;
1155 	__be32 prc;
1156 	__be64 fd_dev_id;
1157 	__be64 fd_lun;
1158 	u8 fd_res_path[8];
1159 	__be64 time_stamp;
1160 	u8 reserved[16];
1161 	union {
1162 		struct ipr_hostrcb_type_ff_error type_ff_error;
1163 		struct ipr_hostrcb_type_12_error type_12_error;
1164 		struct ipr_hostrcb_type_17_error type_17_error;
1165 		struct ipr_hostrcb_type_21_error type_21_error;
1166 		struct ipr_hostrcb_type_23_error type_23_error;
1167 		struct ipr_hostrcb_type_24_error type_24_error;
1168 		struct ipr_hostrcb_type_30_error type_30_error;
1169 		struct ipr_hostrcb_type_41_error type_41_error;
1170 	} u;
1171 }__attribute__((packed, aligned (8)));
1172 
1173 struct ipr_hostrcb_raw {
1174 	__be32 data[sizeof(struct ipr_hostrcb_error)/sizeof(__be32)];
1175 }__attribute__((packed, aligned (4)));
1176 
1177 struct ipr_hcam {
1178 	u8 op_code;
1179 #define IPR_HOST_RCB_OP_CODE_CONFIG_CHANGE			0xE1
1180 #define IPR_HOST_RCB_OP_CODE_LOG_DATA				0xE2
1181 
1182 	u8 notify_type;
1183 #define IPR_HOST_RCB_NOTIF_TYPE_EXISTING_CHANGED	0x00
1184 #define IPR_HOST_RCB_NOTIF_TYPE_NEW_ENTRY			0x01
1185 #define IPR_HOST_RCB_NOTIF_TYPE_REM_ENTRY			0x02
1186 #define IPR_HOST_RCB_NOTIF_TYPE_ERROR_LOG_ENTRY		0x10
1187 #define IPR_HOST_RCB_NOTIF_TYPE_INFORMATION_ENTRY	0x11
1188 
1189 	u8 notifications_lost;
1190 #define IPR_HOST_RCB_NO_NOTIFICATIONS_LOST			0
1191 #define IPR_HOST_RCB_NOTIFICATIONS_LOST				0x80
1192 
1193 	u8 flags;
1194 #define IPR_HOSTRCB_INTERNAL_OPER	0x80
1195 #define IPR_HOSTRCB_ERR_RESP_SENT	0x40
1196 
1197 	u8 overlay_id;
1198 #define IPR_HOST_RCB_OVERLAY_ID_1				0x01
1199 #define IPR_HOST_RCB_OVERLAY_ID_2				0x02
1200 #define IPR_HOST_RCB_OVERLAY_ID_3				0x03
1201 #define IPR_HOST_RCB_OVERLAY_ID_4				0x04
1202 #define IPR_HOST_RCB_OVERLAY_ID_6				0x06
1203 #define IPR_HOST_RCB_OVERLAY_ID_7				0x07
1204 #define IPR_HOST_RCB_OVERLAY_ID_12				0x12
1205 #define IPR_HOST_RCB_OVERLAY_ID_13				0x13
1206 #define IPR_HOST_RCB_OVERLAY_ID_14				0x14
1207 #define IPR_HOST_RCB_OVERLAY_ID_16				0x16
1208 #define IPR_HOST_RCB_OVERLAY_ID_17				0x17
1209 #define IPR_HOST_RCB_OVERLAY_ID_20				0x20
1210 #define IPR_HOST_RCB_OVERLAY_ID_21				0x21
1211 #define IPR_HOST_RCB_OVERLAY_ID_23				0x23
1212 #define IPR_HOST_RCB_OVERLAY_ID_24				0x24
1213 #define IPR_HOST_RCB_OVERLAY_ID_26				0x26
1214 #define IPR_HOST_RCB_OVERLAY_ID_30				0x30
1215 #define IPR_HOST_RCB_OVERLAY_ID_41				0x41
1216 #define IPR_HOST_RCB_OVERLAY_ID_DEFAULT				0xFF
1217 
1218 	u8 reserved1[3];
1219 	__be32 ilid;
1220 	__be32 time_since_last_ioa_reset;
1221 	__be32 reserved2;
1222 	__be32 length;
1223 
1224 	union {
1225 		struct ipr_hostrcb_error error;
1226 		struct ipr_hostrcb64_error error64;
1227 		struct ipr_hostrcb_cfg_ch_not ccn;
1228 		struct ipr_hostrcb_raw raw;
1229 	} u;
1230 }__attribute__((packed, aligned (4)));
1231 
1232 struct ipr_hostrcb {
1233 	struct ipr_hcam hcam;
1234 	dma_addr_t hostrcb_dma;
1235 	struct list_head queue;
1236 	struct ipr_ioa_cfg *ioa_cfg;
1237 	char rp_buffer[IPR_MAX_RES_PATH_LENGTH];
1238 };
1239 
1240 /* IPR smart dump table structures */
1241 struct ipr_sdt_entry {
1242 	__be32 start_token;
1243 	__be32 end_token;
1244 	u8 reserved[4];
1245 
1246 	u8 flags;
1247 #define IPR_SDT_ENDIAN		0x80
1248 #define IPR_SDT_VALID_ENTRY	0x20
1249 
1250 	u8 resv;
1251 	__be16 priority;
1252 }__attribute__((packed, aligned (4)));
1253 
1254 struct ipr_sdt_header {
1255 	__be32 state;
1256 	__be32 num_entries;
1257 	__be32 num_entries_used;
1258 	__be32 dump_size;
1259 }__attribute__((packed, aligned (4)));
1260 
1261 struct ipr_sdt {
1262 	struct ipr_sdt_header hdr;
1263 	struct ipr_sdt_entry entry[IPR_FMT3_NUM_SDT_ENTRIES];
1264 }__attribute__((packed, aligned (4)));
1265 
1266 struct ipr_uc_sdt {
1267 	struct ipr_sdt_header hdr;
1268 	struct ipr_sdt_entry entry[1];
1269 }__attribute__((packed, aligned (4)));
1270 
1271 /*
1272  * Driver types
1273  */
1274 struct ipr_bus_attributes {
1275 	u8 bus;
1276 	u8 qas_enabled;
1277 	u8 bus_width;
1278 	u8 reserved;
1279 	u32 max_xfer_rate;
1280 };
1281 
1282 struct ipr_sata_port {
1283 	struct ipr_ioa_cfg *ioa_cfg;
1284 	struct ata_port *ap;
1285 	struct ipr_resource_entry *res;
1286 	struct ipr_ioasa_gata ioasa;
1287 };
1288 
1289 struct ipr_resource_entry {
1290 	u8 needs_sync_complete:1;
1291 	u8 in_erp:1;
1292 	u8 add_to_ml:1;
1293 	u8 del_from_ml:1;
1294 	u8 resetting_device:1;
1295 	u8 reset_occurred:1;
1296 	u8 raw_mode:1;
1297 
1298 	u32 bus;		/* AKA channel */
1299 	u32 target;		/* AKA id */
1300 	u32 lun;
1301 #define IPR_ARRAY_VIRTUAL_BUS			0x1
1302 #define IPR_VSET_VIRTUAL_BUS			0x2
1303 #define IPR_IOAFP_VIRTUAL_BUS			0x3
1304 #define IPR_MAX_SIS64_BUSES			0x4
1305 
1306 #define IPR_GET_RES_PHYS_LOC(res) \
1307 	(((res)->bus << 24) | ((res)->target << 8) | (res)->lun)
1308 
1309 	u8 ata_class;
1310 	u8 type;
1311 
1312 	u16 flags;
1313 	u16 res_flags;
1314 
1315 	u8 qmodel;
1316 	struct ipr_std_inq_data std_inq_data;
1317 
1318 	__be32 res_handle;
1319 	__be64 dev_id;
1320 	u64 lun_wwn;
1321 	struct scsi_lun dev_lun;
1322 	u8 res_path[8];
1323 
1324 	struct ipr_ioa_cfg *ioa_cfg;
1325 	struct scsi_device *sdev;
1326 	struct ipr_sata_port *sata_port;
1327 	struct list_head queue;
1328 }; /* struct ipr_resource_entry */
1329 
1330 struct ipr_resource_hdr {
1331 	u16 num_entries;
1332 	u16 reserved;
1333 };
1334 
1335 struct ipr_misc_cbs {
1336 	struct ipr_ioa_vpd ioa_vpd;
1337 	struct ipr_inquiry_page0 page0_data;
1338 	struct ipr_inquiry_page3 page3_data;
1339 	struct ipr_inquiry_cap cap;
1340 	struct ipr_inquiry_pageC4 pageC4_data;
1341 	struct ipr_mode_pages mode_pages;
1342 	struct ipr_supported_device supp_dev;
1343 };
1344 
1345 struct ipr_interrupt_offsets {
1346 	unsigned long set_interrupt_mask_reg;
1347 	unsigned long clr_interrupt_mask_reg;
1348 	unsigned long clr_interrupt_mask_reg32;
1349 	unsigned long sense_interrupt_mask_reg;
1350 	unsigned long sense_interrupt_mask_reg32;
1351 	unsigned long clr_interrupt_reg;
1352 	unsigned long clr_interrupt_reg32;
1353 
1354 	unsigned long sense_interrupt_reg;
1355 	unsigned long sense_interrupt_reg32;
1356 	unsigned long ioarrin_reg;
1357 	unsigned long sense_uproc_interrupt_reg;
1358 	unsigned long sense_uproc_interrupt_reg32;
1359 	unsigned long set_uproc_interrupt_reg;
1360 	unsigned long set_uproc_interrupt_reg32;
1361 	unsigned long clr_uproc_interrupt_reg;
1362 	unsigned long clr_uproc_interrupt_reg32;
1363 
1364 	unsigned long init_feedback_reg;
1365 
1366 	unsigned long dump_addr_reg;
1367 	unsigned long dump_data_reg;
1368 
1369 #define IPR_ENDIAN_SWAP_KEY		0x00080800
1370 	unsigned long endian_swap_reg;
1371 };
1372 
1373 struct ipr_interrupts {
1374 	void __iomem *set_interrupt_mask_reg;
1375 	void __iomem *clr_interrupt_mask_reg;
1376 	void __iomem *clr_interrupt_mask_reg32;
1377 	void __iomem *sense_interrupt_mask_reg;
1378 	void __iomem *sense_interrupt_mask_reg32;
1379 	void __iomem *clr_interrupt_reg;
1380 	void __iomem *clr_interrupt_reg32;
1381 
1382 	void __iomem *sense_interrupt_reg;
1383 	void __iomem *sense_interrupt_reg32;
1384 	void __iomem *ioarrin_reg;
1385 	void __iomem *sense_uproc_interrupt_reg;
1386 	void __iomem *sense_uproc_interrupt_reg32;
1387 	void __iomem *set_uproc_interrupt_reg;
1388 	void __iomem *set_uproc_interrupt_reg32;
1389 	void __iomem *clr_uproc_interrupt_reg;
1390 	void __iomem *clr_uproc_interrupt_reg32;
1391 
1392 	void __iomem *init_feedback_reg;
1393 
1394 	void __iomem *dump_addr_reg;
1395 	void __iomem *dump_data_reg;
1396 
1397 	void __iomem *endian_swap_reg;
1398 };
1399 
1400 struct ipr_chip_cfg_t {
1401 	u32 mailbox;
1402 	u16 max_cmds;
1403 	u8 cache_line_size;
1404 	u8 clear_isr;
1405 	u32 iopoll_weight;
1406 	struct ipr_interrupt_offsets regs;
1407 };
1408 
1409 struct ipr_chip_t {
1410 	u16 vendor;
1411 	u16 device;
1412 	bool has_msi;
1413 	u16 sis_type;
1414 #define IPR_SIS32			0x00
1415 #define IPR_SIS64			0x01
1416 	u16 bist_method;
1417 #define IPR_PCI_CFG			0x00
1418 #define IPR_MMIO			0x01
1419 	const struct ipr_chip_cfg_t *cfg;
1420 };
1421 
1422 enum ipr_shutdown_type {
1423 	IPR_SHUTDOWN_NORMAL = 0x00,
1424 	IPR_SHUTDOWN_PREPARE_FOR_NORMAL = 0x40,
1425 	IPR_SHUTDOWN_ABBREV = 0x80,
1426 	IPR_SHUTDOWN_NONE = 0x100,
1427 	IPR_SHUTDOWN_QUIESCE = 0x101,
1428 };
1429 
1430 struct ipr_trace_entry {
1431 	u32 time;
1432 
1433 	u8 op_code;
1434 	u8 ata_op_code;
1435 	u8 type;
1436 #define IPR_TRACE_START			0x00
1437 #define IPR_TRACE_FINISH		0xff
1438 	u8 cmd_index;
1439 
1440 	__be32 res_handle;
1441 	union {
1442 		u32 ioasc;
1443 		u32 add_data;
1444 		u32 res_addr;
1445 	} u;
1446 };
1447 
1448 struct ipr_sglist {
1449 	u32 order;
1450 	u32 num_sg;
1451 	u32 num_dma_sg;
1452 	u32 buffer_len;
1453 	struct scatterlist *scatterlist;
1454 };
1455 
1456 enum ipr_sdt_state {
1457 	INACTIVE,
1458 	WAIT_FOR_DUMP,
1459 	GET_DUMP,
1460 	READ_DUMP,
1461 	ABORT_DUMP,
1462 	DUMP_OBTAINED
1463 };
1464 
1465 /* Per-controller data */
1466 struct ipr_ioa_cfg {
1467 	char eye_catcher[8];
1468 #define IPR_EYECATCHER			"iprcfg"
1469 
1470 	struct list_head queue;
1471 
1472 	u8 in_reset_reload:1;
1473 	u8 in_ioa_bringdown:1;
1474 	u8 ioa_unit_checked:1;
1475 	u8 dump_taken:1;
1476 	u8 scan_enabled:1;
1477 	u8 scan_done:1;
1478 	u8 needs_hard_reset:1;
1479 	u8 dual_raid:1;
1480 	u8 needs_warm_reset:1;
1481 	u8 msi_received:1;
1482 	u8 sis64:1;
1483 	u8 dump_timeout:1;
1484 	u8 cfg_locked:1;
1485 	u8 clear_isr:1;
1486 	u8 probe_done:1;
1487 	u8 scsi_unblock:1;
1488 	u8 scsi_blocked:1;
1489 
1490 	u8 revid;
1491 
1492 	/*
1493 	 * Bitmaps for SIS64 generated target values
1494 	 */
1495 	unsigned long target_ids[BITS_TO_LONGS(IPR_MAX_SIS64_DEVS)];
1496 	unsigned long array_ids[BITS_TO_LONGS(IPR_MAX_SIS64_DEVS)];
1497 	unsigned long vset_ids[BITS_TO_LONGS(IPR_MAX_SIS64_DEVS)];
1498 
1499 	u16 type; /* CCIN of the card */
1500 
1501 	u8 log_level;
1502 #define IPR_MAX_LOG_LEVEL			4
1503 #define IPR_DEFAULT_LOG_LEVEL		2
1504 #define IPR_DEBUG_LOG_LEVEL		3
1505 
1506 #define IPR_NUM_TRACE_INDEX_BITS	8
1507 #define IPR_NUM_TRACE_ENTRIES		(1 << IPR_NUM_TRACE_INDEX_BITS)
1508 #define IPR_TRACE_INDEX_MASK		(IPR_NUM_TRACE_ENTRIES - 1)
1509 #define IPR_TRACE_SIZE	(sizeof(struct ipr_trace_entry) * IPR_NUM_TRACE_ENTRIES)
1510 	char trace_start[8];
1511 #define IPR_TRACE_START_LABEL			"trace"
1512 	struct ipr_trace_entry *trace;
1513 	atomic_t trace_index;
1514 
1515 	char cfg_table_start[8];
1516 #define IPR_CFG_TBL_START		"cfg"
1517 	union {
1518 		struct ipr_config_table *cfg_table;
1519 		struct ipr_config_table64 *cfg_table64;
1520 	} u;
1521 	dma_addr_t cfg_table_dma;
1522 	u32 cfg_table_size;
1523 	u32 max_devs_supported;
1524 
1525 	char resource_table_label[8];
1526 #define IPR_RES_TABLE_LABEL		"res_tbl"
1527 	struct ipr_resource_entry *res_entries;
1528 	struct list_head free_res_q;
1529 	struct list_head used_res_q;
1530 
1531 	char ipr_hcam_label[8];
1532 #define IPR_HCAM_LABEL			"hcams"
1533 	struct ipr_hostrcb *hostrcb[IPR_MAX_HCAMS];
1534 	dma_addr_t hostrcb_dma[IPR_MAX_HCAMS];
1535 	struct list_head hostrcb_free_q;
1536 	struct list_head hostrcb_pending_q;
1537 	struct list_head hostrcb_report_q;
1538 
1539 	struct ipr_hrr_queue hrrq[IPR_MAX_HRRQ_NUM];
1540 	u32 hrrq_num;
1541 	atomic_t  hrrq_index;
1542 	u16 identify_hrrq_index;
1543 
1544 	struct ipr_bus_attributes bus_attr[IPR_MAX_NUM_BUSES];
1545 
1546 	unsigned int transop_timeout;
1547 	const struct ipr_chip_cfg_t *chip_cfg;
1548 	const struct ipr_chip_t *ipr_chip;
1549 
1550 	void __iomem *hdw_dma_regs;	/* iomapped PCI memory space */
1551 	unsigned long hdw_dma_regs_pci;	/* raw PCI memory space */
1552 	void __iomem *ioa_mailbox;
1553 	struct ipr_interrupts regs;
1554 
1555 	u16 saved_pcix_cmd_reg;
1556 	u16 reset_retries;
1557 
1558 	u32 errors_logged;
1559 	u32 doorbell;
1560 
1561 	struct Scsi_Host *host;
1562 	struct pci_dev *pdev;
1563 	struct ipr_sglist *ucode_sglist;
1564 	u8 saved_mode_page_len;
1565 
1566 	struct work_struct work_q;
1567 	struct work_struct scsi_add_work_q;
1568 	struct workqueue_struct *reset_work_q;
1569 
1570 	wait_queue_head_t reset_wait_q;
1571 	wait_queue_head_t msi_wait_q;
1572 	wait_queue_head_t eeh_wait_q;
1573 
1574 	struct ipr_dump *dump;
1575 	enum ipr_sdt_state sdt_state;
1576 
1577 	struct ipr_misc_cbs *vpd_cbs;
1578 	dma_addr_t vpd_cbs_dma;
1579 
1580 	struct dma_pool *ipr_cmd_pool;
1581 
1582 	struct ipr_cmnd *reset_cmd;
1583 	int (*reset) (struct ipr_cmnd *);
1584 
1585 	struct ata_host ata_host;
1586 	char ipr_cmd_label[8];
1587 #define IPR_CMD_LABEL		"ipr_cmd"
1588 	u32 max_cmds;
1589 	struct ipr_cmnd **ipr_cmnd_list;
1590 	dma_addr_t *ipr_cmnd_list_dma;
1591 
1592 	unsigned int nvectors;
1593 
1594 	struct {
1595 		char desc[22];
1596 	} vectors_info[IPR_MAX_MSIX_VECTORS];
1597 
1598 	u32 iopoll_weight;
1599 
1600 }; /* struct ipr_ioa_cfg */
1601 
1602 struct ipr_cmnd {
1603 	struct ipr_ioarcb ioarcb;
1604 	union {
1605 		struct ipr_ioadl_desc ioadl[IPR_NUM_IOADL_ENTRIES];
1606 		struct ipr_ioadl64_desc ioadl64[IPR_NUM_IOADL_ENTRIES];
1607 		struct ipr_ata64_ioadl ata_ioadl;
1608 	} i;
1609 	union {
1610 		struct ipr_ioasa ioasa;
1611 		struct ipr_ioasa64 ioasa64;
1612 	} s;
1613 	struct list_head queue;
1614 	struct scsi_cmnd *scsi_cmd;
1615 	struct ata_queued_cmd *qc;
1616 	struct completion completion;
1617 	struct timer_list timer;
1618 	struct work_struct work;
1619 	void (*fast_done) (struct ipr_cmnd *);
1620 	void (*done) (struct ipr_cmnd *);
1621 	int (*job_step) (struct ipr_cmnd *);
1622 	int (*job_step_failed) (struct ipr_cmnd *);
1623 	u16 cmd_index;
1624 	u8 sense_buffer[SCSI_SENSE_BUFFERSIZE];
1625 	dma_addr_t sense_buffer_dma;
1626 	unsigned short dma_use_sg;
1627 	dma_addr_t dma_addr;
1628 	struct ipr_cmnd *sibling;
1629 	union {
1630 		enum ipr_shutdown_type shutdown_type;
1631 		struct ipr_hostrcb *hostrcb;
1632 		unsigned long time_left;
1633 		unsigned long scratch;
1634 		struct ipr_resource_entry *res;
1635 		struct scsi_device *sdev;
1636 	} u;
1637 
1638 	struct completion *eh_comp;
1639 	struct ipr_hrr_queue *hrrq;
1640 	struct ipr_ioa_cfg *ioa_cfg;
1641 };
1642 
1643 struct ipr_ses_table_entry {
1644 	char product_id[17];
1645 	char compare_product_id_byte[17];
1646 	u32 max_bus_speed_limit;	/* MB/sec limit for this backplane */
1647 };
1648 
1649 struct ipr_dump_header {
1650 	u32 eye_catcher;
1651 #define IPR_DUMP_EYE_CATCHER		0xC5D4E3F2
1652 	u32 len;
1653 	u32 num_entries;
1654 	u32 first_entry_offset;
1655 	u32 status;
1656 #define IPR_DUMP_STATUS_SUCCESS			0
1657 #define IPR_DUMP_STATUS_QUAL_SUCCESS		2
1658 #define IPR_DUMP_STATUS_FAILED			0xffffffff
1659 	u32 os;
1660 #define IPR_DUMP_OS_LINUX	0x4C4E5558
1661 	u32 driver_name;
1662 #define IPR_DUMP_DRIVER_NAME	0x49505232
1663 }__attribute__((packed, aligned (4)));
1664 
1665 struct ipr_dump_entry_header {
1666 	u32 eye_catcher;
1667 #define IPR_DUMP_EYE_CATCHER		0xC5D4E3F2
1668 	u32 len;
1669 	u32 num_elems;
1670 	u32 offset;
1671 	u32 data_type;
1672 #define IPR_DUMP_DATA_TYPE_ASCII	0x41534349
1673 #define IPR_DUMP_DATA_TYPE_BINARY	0x42494E41
1674 	u32 id;
1675 #define IPR_DUMP_IOA_DUMP_ID		0x494F4131
1676 #define IPR_DUMP_LOCATION_ID		0x4C4F4341
1677 #define IPR_DUMP_TRACE_ID		0x54524143
1678 #define IPR_DUMP_DRIVER_VERSION_ID	0x44525652
1679 #define IPR_DUMP_DRIVER_TYPE_ID	0x54595045
1680 #define IPR_DUMP_IOA_CTRL_BLK		0x494F4342
1681 #define IPR_DUMP_PEND_OPS		0x414F5053
1682 	u32 status;
1683 }__attribute__((packed, aligned (4)));
1684 
1685 struct ipr_dump_location_entry {
1686 	struct ipr_dump_entry_header hdr;
1687 	u8 location[20];
1688 }__attribute__((packed, aligned (4)));
1689 
1690 struct ipr_dump_trace_entry {
1691 	struct ipr_dump_entry_header hdr;
1692 	u32 trace[IPR_TRACE_SIZE / sizeof(u32)];
1693 }__attribute__((packed, aligned (4)));
1694 
1695 struct ipr_dump_version_entry {
1696 	struct ipr_dump_entry_header hdr;
1697 	u8 version[sizeof(IPR_DRIVER_VERSION)];
1698 };
1699 
1700 struct ipr_dump_ioa_type_entry {
1701 	struct ipr_dump_entry_header hdr;
1702 	u32 type;
1703 	u32 fw_version;
1704 };
1705 
1706 struct ipr_driver_dump {
1707 	struct ipr_dump_header hdr;
1708 	struct ipr_dump_version_entry version_entry;
1709 	struct ipr_dump_location_entry location_entry;
1710 	struct ipr_dump_ioa_type_entry ioa_type_entry;
1711 	struct ipr_dump_trace_entry trace_entry;
1712 }__attribute__((packed, aligned (4)));
1713 
1714 struct ipr_ioa_dump {
1715 	struct ipr_dump_entry_header hdr;
1716 	struct ipr_sdt sdt;
1717 	__be32 **ioa_data;
1718 	u32 reserved;
1719 	u32 next_page_index;
1720 	u32 page_offset;
1721 	u32 format;
1722 }__attribute__((packed, aligned (4)));
1723 
1724 struct ipr_dump {
1725 	struct kref kref;
1726 	struct ipr_ioa_cfg *ioa_cfg;
1727 	struct ipr_driver_dump driver_dump;
1728 	struct ipr_ioa_dump ioa_dump;
1729 };
1730 
1731 struct ipr_error_table_t {
1732 	u32 ioasc;
1733 	int log_ioasa;
1734 	int log_hcam;
1735 	char *error;
1736 };
1737 
1738 struct ipr_software_inq_lid_info {
1739 	__be32 load_id;
1740 	__be32 timestamp[3];
1741 }__attribute__((packed, aligned (4)));
1742 
1743 struct ipr_ucode_image_header {
1744 	__be32 header_length;
1745 	__be32 lid_table_offset;
1746 	u8 major_release;
1747 	u8 card_type;
1748 	u8 minor_release[2];
1749 	u8 reserved[20];
1750 	char eyecatcher[16];
1751 	__be32 num_lids;
1752 	struct ipr_software_inq_lid_info lid[1];
1753 }__attribute__((packed, aligned (4)));
1754 
1755 /*
1756  * Macros
1757  */
1758 #define IPR_DBG_CMD(CMD) if (ipr_debug) { CMD; }
1759 
1760 #ifdef CONFIG_SCSI_IPR_TRACE
1761 #define ipr_create_trace_file(kobj, attr) sysfs_create_bin_file(kobj, attr)
1762 #define ipr_remove_trace_file(kobj, attr) sysfs_remove_bin_file(kobj, attr)
1763 #else
1764 #define ipr_create_trace_file(kobj, attr) 0
1765 #define ipr_remove_trace_file(kobj, attr) do { } while(0)
1766 #endif
1767 
1768 #ifdef CONFIG_SCSI_IPR_DUMP
1769 #define ipr_create_dump_file(kobj, attr) sysfs_create_bin_file(kobj, attr)
1770 #define ipr_remove_dump_file(kobj, attr) sysfs_remove_bin_file(kobj, attr)
1771 #else
1772 #define ipr_create_dump_file(kobj, attr) 0
1773 #define ipr_remove_dump_file(kobj, attr) do { } while(0)
1774 #endif
1775 
1776 /*
1777  * Error logging macros
1778  */
1779 #define ipr_err(...) printk(KERN_ERR IPR_NAME ": "__VA_ARGS__)
1780 #define ipr_info(...) printk(KERN_INFO IPR_NAME ": "__VA_ARGS__)
1781 #define ipr_dbg(...) IPR_DBG_CMD(printk(KERN_INFO IPR_NAME ": "__VA_ARGS__))
1782 
1783 #define ipr_res_printk(level, ioa_cfg, bus, target, lun, fmt, ...) \
1784 	printk(level IPR_NAME ": %d:%d:%d:%d: " fmt, (ioa_cfg)->host->host_no, \
1785 		bus, target, lun, ##__VA_ARGS__)
1786 
1787 #define ipr_res_err(ioa_cfg, res, fmt, ...) \
1788 	ipr_res_printk(KERN_ERR, ioa_cfg, (res)->bus, (res)->target, (res)->lun, fmt, ##__VA_ARGS__)
1789 
1790 #define ipr_ra_printk(level, ioa_cfg, ra, fmt, ...) \
1791 	printk(level IPR_NAME ": %d:%d:%d:%d: " fmt, (ioa_cfg)->host->host_no, \
1792 		(ra).bus, (ra).target, (ra).lun, ##__VA_ARGS__)
1793 
1794 #define ipr_ra_err(ioa_cfg, ra, fmt, ...) \
1795 	ipr_ra_printk(KERN_ERR, ioa_cfg, ra, fmt, ##__VA_ARGS__)
1796 
1797 #define ipr_phys_res_err(ioa_cfg, res, fmt, ...)			\
1798 {									\
1799 	if ((res).bus >= IPR_MAX_NUM_BUSES) {				\
1800 		ipr_err(fmt": unknown\n", ##__VA_ARGS__);		\
1801 	} else {							\
1802 		ipr_err(fmt": %d:%d:%d:%d\n",				\
1803 			##__VA_ARGS__, (ioa_cfg)->host->host_no,	\
1804 			(res).bus, (res).target, (res).lun);		\
1805 	}								\
1806 }
1807 
1808 #define ipr_hcam_err(hostrcb, fmt, ...)					\
1809 {									\
1810 	if (ipr_is_device(hostrcb)) {					\
1811 		if ((hostrcb)->ioa_cfg->sis64) {			\
1812 			printk(KERN_ERR IPR_NAME ": %s: " fmt, 		\
1813 				ipr_format_res_path(hostrcb->ioa_cfg,	\
1814 					hostrcb->hcam.u.error64.fd_res_path, \
1815 					hostrcb->rp_buffer,		\
1816 					sizeof(hostrcb->rp_buffer)),	\
1817 				__VA_ARGS__);				\
1818 		} else {						\
1819 			ipr_ra_err((hostrcb)->ioa_cfg,			\
1820 				(hostrcb)->hcam.u.error.fd_res_addr,	\
1821 				fmt, __VA_ARGS__);			\
1822 		}							\
1823 	} else {							\
1824 		dev_err(&(hostrcb)->ioa_cfg->pdev->dev, fmt, __VA_ARGS__); \
1825 	}								\
1826 }
1827 
1828 #define ipr_trace ipr_dbg("%s: %s: Line: %d\n",\
1829 	__FILE__, __func__, __LINE__)
1830 
1831 #define ENTER IPR_DBG_CMD(printk(KERN_INFO IPR_NAME": Entering %s\n", __func__))
1832 #define LEAVE IPR_DBG_CMD(printk(KERN_INFO IPR_NAME": Leaving %s\n", __func__))
1833 
1834 #define ipr_err_separator \
1835 ipr_err("----------------------------------------------------------\n")
1836 
1837 
1838 /*
1839  * Inlines
1840  */
1841 
1842 /**
1843  * ipr_is_ioa_resource - Determine if a resource is the IOA
1844  * @res:	resource entry struct
1845  *
1846  * Return value:
1847  * 	1 if IOA / 0 if not IOA
1848  **/
1849 static inline int ipr_is_ioa_resource(struct ipr_resource_entry *res)
1850 {
1851 	return res->type == IPR_RES_TYPE_IOAFP;
1852 }
1853 
1854 /**
1855  * ipr_is_af_dasd_device - Determine if a resource is an AF DASD
1856  * @res:	resource entry struct
1857  *
1858  * Return value:
1859  * 	1 if AF DASD / 0 if not AF DASD
1860  **/
1861 static inline int ipr_is_af_dasd_device(struct ipr_resource_entry *res)
1862 {
1863 	return res->type == IPR_RES_TYPE_AF_DASD ||
1864 		res->type == IPR_RES_TYPE_REMOTE_AF_DASD;
1865 }
1866 
1867 /**
1868  * ipr_is_vset_device - Determine if a resource is a VSET
1869  * @res:	resource entry struct
1870  *
1871  * Return value:
1872  * 	1 if VSET / 0 if not VSET
1873  **/
1874 static inline int ipr_is_vset_device(struct ipr_resource_entry *res)
1875 {
1876 	return res->type == IPR_RES_TYPE_VOLUME_SET;
1877 }
1878 
1879 /**
1880  * ipr_is_gscsi - Determine if a resource is a generic scsi resource
1881  * @res:	resource entry struct
1882  *
1883  * Return value:
1884  * 	1 if GSCSI / 0 if not GSCSI
1885  **/
1886 static inline int ipr_is_gscsi(struct ipr_resource_entry *res)
1887 {
1888 	return res->type == IPR_RES_TYPE_GENERIC_SCSI;
1889 }
1890 
1891 /**
1892  * ipr_is_scsi_disk - Determine if a resource is a SCSI disk
1893  * @res:	resource entry struct
1894  *
1895  * Return value:
1896  * 	1 if SCSI disk / 0 if not SCSI disk
1897  **/
1898 static inline int ipr_is_scsi_disk(struct ipr_resource_entry *res)
1899 {
1900 	if (ipr_is_af_dasd_device(res) ||
1901 	    (ipr_is_gscsi(res) && IPR_IS_DASD_DEVICE(res->std_inq_data)))
1902 		return 1;
1903 	else
1904 		return 0;
1905 }
1906 
1907 /**
1908  * ipr_is_gata - Determine if a resource is a generic ATA resource
1909  * @res:	resource entry struct
1910  *
1911  * Return value:
1912  * 	1 if GATA / 0 if not GATA
1913  **/
1914 static inline int ipr_is_gata(struct ipr_resource_entry *res)
1915 {
1916 	return res->type == IPR_RES_TYPE_GENERIC_ATA;
1917 }
1918 
1919 /**
1920  * ipr_is_naca_model - Determine if a resource is using NACA queueing model
1921  * @res:	resource entry struct
1922  *
1923  * Return value:
1924  * 	1 if NACA queueing model / 0 if not NACA queueing model
1925  **/
1926 static inline int ipr_is_naca_model(struct ipr_resource_entry *res)
1927 {
1928 	if (ipr_is_gscsi(res) && res->qmodel == IPR_QUEUE_NACA_MODEL)
1929 		return 1;
1930 	return 0;
1931 }
1932 
1933 /**
1934  * ipr_is_device - Determine if the hostrcb structure is related to a device
1935  * @hostrcb:	host resource control blocks struct
1936  *
1937  * Return value:
1938  * 	1 if AF / 0 if not AF
1939  **/
1940 static inline int ipr_is_device(struct ipr_hostrcb *hostrcb)
1941 {
1942 	struct ipr_res_addr *res_addr;
1943 	u8 *res_path;
1944 
1945 	if (hostrcb->ioa_cfg->sis64) {
1946 		res_path = &hostrcb->hcam.u.error64.fd_res_path[0];
1947 		if ((res_path[0] == 0x00 || res_path[0] == 0x80 ||
1948 		    res_path[0] == 0x81) && res_path[2] != 0xFF)
1949 			return 1;
1950 	} else {
1951 		res_addr = &hostrcb->hcam.u.error.fd_res_addr;
1952 
1953 		if ((res_addr->bus < IPR_MAX_NUM_BUSES) &&
1954 		    (res_addr->target < (IPR_MAX_NUM_TARGETS_PER_BUS - 1)))
1955 			return 1;
1956 	}
1957 	return 0;
1958 }
1959 
1960 /**
1961  * ipr_sdt_is_fmt2 - Determine if a SDT address is in format 2
1962  * @sdt_word:	SDT address
1963  *
1964  * Return value:
1965  * 	1 if format 2 / 0 if not
1966  **/
1967 static inline int ipr_sdt_is_fmt2(u32 sdt_word)
1968 {
1969 	u32 bar_sel = IPR_GET_FMT2_BAR_SEL(sdt_word);
1970 
1971 	switch (bar_sel) {
1972 	case IPR_SDT_FMT2_BAR0_SEL:
1973 	case IPR_SDT_FMT2_BAR1_SEL:
1974 	case IPR_SDT_FMT2_BAR2_SEL:
1975 	case IPR_SDT_FMT2_BAR3_SEL:
1976 	case IPR_SDT_FMT2_BAR4_SEL:
1977 	case IPR_SDT_FMT2_BAR5_SEL:
1978 	case IPR_SDT_FMT2_EXP_ROM_SEL:
1979 		return 1;
1980 	};
1981 
1982 	return 0;
1983 }
1984 
1985 #ifndef writeq
1986 static inline void writeq(u64 val, void __iomem *addr)
1987 {
1988         writel(((u32) (val >> 32)), addr);
1989         writel(((u32) (val)), (addr + 4));
1990 }
1991 #endif
1992 
1993 #endif /* _IPR_H */
1994