1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59#ifndef _AIC7XXX_LINUX_H_
60#define _AIC7XXX_LINUX_H_
61
62#include <linux/types.h>
63#include <linux/blkdev.h>
64#include <linux/delay.h>
65#include <linux/ioport.h>
66#include <linux/pci.h>
67#include <linux/interrupt.h>
68#include <linux/module.h>
69#include <linux/slab.h>
70#include <asm/byteorder.h>
71#include <asm/io.h>
72
73#include <scsi/scsi.h>
74#include <scsi/scsi_cmnd.h>
75#include <scsi/scsi_eh.h>
76#include <scsi/scsi_device.h>
77#include <scsi/scsi_host.h>
78#include <scsi/scsi_tcq.h>
79#include <scsi/scsi_transport.h>
80#include <scsi/scsi_transport_spi.h>
81
82
83#define AIC_LIB_PREFIX ahc
84
85#include "cam.h"
86#include "queue.h"
87#include "scsi_message.h"
88#include "aiclib.h"
89
90
91#ifdef CONFIG_AIC7XXX_DEBUG_ENABLE
92#ifdef CONFIG_AIC7XXX_DEBUG_MASK
93#define AHC_DEBUG 1
94#define AHC_DEBUG_OPTS CONFIG_AIC7XXX_DEBUG_MASK
95#else
96
97
98
99#define AHC_DEBUG 1
100#endif
101
102#endif
103
104
105struct ahc_softc;
106typedef struct pci_dev *ahc_dev_softc_t;
107typedef struct scsi_cmnd *ahc_io_ctx_t;
108
109
110#define ahc_htobe16(x) cpu_to_be16(x)
111#define ahc_htobe32(x) cpu_to_be32(x)
112#define ahc_htobe64(x) cpu_to_be64(x)
113#define ahc_htole16(x) cpu_to_le16(x)
114#define ahc_htole32(x) cpu_to_le32(x)
115#define ahc_htole64(x) cpu_to_le64(x)
116
117#define ahc_be16toh(x) be16_to_cpu(x)
118#define ahc_be32toh(x) be32_to_cpu(x)
119#define ahc_be64toh(x) be64_to_cpu(x)
120#define ahc_le16toh(x) le16_to_cpu(x)
121#define ahc_le32toh(x) le32_to_cpu(x)
122#define ahc_le64toh(x) le64_to_cpu(x)
123
124
125extern u_int aic7xxx_no_probe;
126extern u_int aic7xxx_allow_memio;
127extern struct scsi_host_template aic7xxx_driver_template;
128
129
130
131typedef uint32_t bus_size_t;
132
133typedef enum {
134 BUS_SPACE_MEMIO,
135 BUS_SPACE_PIO
136} bus_space_tag_t;
137
138typedef union {
139 u_long ioport;
140 volatile uint8_t __iomem *maddr;
141} bus_space_handle_t;
142
143typedef struct bus_dma_segment
144{
145 dma_addr_t ds_addr;
146 bus_size_t ds_len;
147} bus_dma_segment_t;
148
149struct ahc_linux_dma_tag
150{
151 bus_size_t alignment;
152 bus_size_t boundary;
153 bus_size_t maxsize;
154};
155typedef struct ahc_linux_dma_tag* bus_dma_tag_t;
156
157typedef dma_addr_t bus_dmamap_t;
158
159typedef int bus_dma_filter_t(void*, dma_addr_t);
160typedef void bus_dmamap_callback_t(void *, bus_dma_segment_t *, int, int);
161
162#define BUS_DMA_WAITOK 0x0
163#define BUS_DMA_NOWAIT 0x1
164#define BUS_DMA_ALLOCNOW 0x2
165#define BUS_DMA_LOAD_SEGS 0x4
166
167
168
169
170#define BUS_SPACE_MAXADDR 0xFFFFFFFF
171#define BUS_SPACE_MAXADDR_32BIT 0xFFFFFFFF
172#define BUS_SPACE_MAXSIZE_32BIT 0xFFFFFFFF
173
174int ahc_dma_tag_create(struct ahc_softc *, bus_dma_tag_t ,
175 bus_size_t , bus_size_t ,
176 dma_addr_t , dma_addr_t ,
177 bus_dma_filter_t*, void *,
178 bus_size_t , int ,
179 bus_size_t , int ,
180 bus_dma_tag_t *);
181
182void ahc_dma_tag_destroy(struct ahc_softc *, bus_dma_tag_t );
183
184int ahc_dmamem_alloc(struct ahc_softc *, bus_dma_tag_t ,
185 void** , int ,
186 bus_dmamap_t* );
187
188void ahc_dmamem_free(struct ahc_softc *, bus_dma_tag_t ,
189 void* , bus_dmamap_t );
190
191void ahc_dmamap_destroy(struct ahc_softc *, bus_dma_tag_t ,
192 bus_dmamap_t );
193
194int ahc_dmamap_load(struct ahc_softc *ahc, bus_dma_tag_t ,
195 bus_dmamap_t , void * ,
196 bus_size_t , bus_dmamap_callback_t *,
197 void *, int );
198
199int ahc_dmamap_unload(struct ahc_softc *, bus_dma_tag_t, bus_dmamap_t);
200
201
202
203
204#define BUS_DMASYNC_PREREAD 0x01
205#define BUS_DMASYNC_POSTREAD 0x02
206#define BUS_DMASYNC_PREWRITE 0x04
207#define BUS_DMASYNC_POSTWRITE 0x08
208
209
210
211
212
213
214
215
216
217#define ahc_dmamap_sync(ahc, dma_tag, dmamap, offset, len, op)
218
219
220#ifdef CONFIG_AIC7XXX_REG_PRETTY_PRINT
221#define AIC_DEBUG_REGISTERS 1
222#else
223#define AIC_DEBUG_REGISTERS 0
224#endif
225#include "aic7xxx.h"
226
227
228static inline void
229ahc_scb_timer_reset(struct scb *scb, u_int usec)
230{
231}
232
233
234#include <linux/spinlock.h>
235
236#define AIC7XXX_DRIVER_VERSION "7.0"
237
238
239
240
241
242
243
244
245
246typedef enum {
247 AHC_DEV_FREEZE_TIL_EMPTY = 0x02,
248 AHC_DEV_Q_BASIC = 0x10,
249 AHC_DEV_Q_TAGGED = 0x20,
250 AHC_DEV_PERIODIC_OTAG = 0x40,
251} ahc_linux_dev_flags;
252
253struct ahc_linux_device {
254
255
256
257
258 int active;
259
260
261
262
263
264
265
266
267
268 int openings;
269
270
271
272
273
274 u_int qfrozen;
275
276
277
278
279 u_long commands_issued;
280
281
282
283
284
285
286
287 u_int tag_success_count;
288#define AHC_TAG_SUCCESS_INTERVAL 50
289
290 ahc_linux_dev_flags flags;
291
292
293
294
295 u_int maxtags;
296
297
298
299
300
301 u_int tags_on_last_queuefull;
302
303
304
305
306
307
308
309 u_int last_queuefull_same_count;
310#define AHC_LOCK_TAGS_COUNT 50
311
312
313
314
315
316
317
318
319
320
321 u_int commands_since_idle_or_otag;
322#define AHC_OTAG_THRESH 500
323};
324
325
326
327
328
329
330
331
332#define AHC_NSEG 128
333
334
335
336
337struct scb_platform_data {
338 struct ahc_linux_device *dev;
339 dma_addr_t buf_busaddr;
340 uint32_t xfer_len;
341 uint32_t sense_resid;
342};
343
344
345
346
347
348
349
350struct ahc_platform_data {
351
352
353
354 struct scsi_target *starget[AHC_NUM_TARGETS];
355
356 spinlock_t spin_lock;
357 u_int qfrozen;
358 struct completion *eh_done;
359 struct Scsi_Host *host;
360#define AHC_LINUX_NOIRQ ((uint32_t)~0)
361 uint32_t irq;
362 uint32_t bios_address;
363 resource_size_t mem_busaddr;
364};
365
366void ahc_delay(long);
367
368
369
370uint8_t ahc_inb(struct ahc_softc * ahc, long port);
371void ahc_outb(struct ahc_softc * ahc, long port, uint8_t val);
372void ahc_outsb(struct ahc_softc * ahc, long port,
373 uint8_t *, int count);
374void ahc_insb(struct ahc_softc * ahc, long port,
375 uint8_t *, int count);
376
377
378int ahc_linux_register_host(struct ahc_softc *,
379 struct scsi_host_template *);
380
381
382
383
384static inline void
385ahc_lockinit(struct ahc_softc *ahc)
386{
387 spin_lock_init(&ahc->platform_data->spin_lock);
388}
389
390static inline void
391ahc_lock(struct ahc_softc *ahc, unsigned long *flags)
392{
393 spin_lock_irqsave(&ahc->platform_data->spin_lock, *flags);
394}
395
396static inline void
397ahc_unlock(struct ahc_softc *ahc, unsigned long *flags)
398{
399 spin_unlock_irqrestore(&ahc->platform_data->spin_lock, *flags);
400}
401
402
403
404
405
406
407
408
409
410
411
412#define PCIR_DEVVENDOR 0x00
413#define PCIR_VENDOR 0x00
414#define PCIR_DEVICE 0x02
415#define PCIR_COMMAND 0x04
416#define PCIM_CMD_PORTEN 0x0001
417#define PCIM_CMD_MEMEN 0x0002
418#define PCIM_CMD_BUSMASTEREN 0x0004
419#define PCIM_CMD_MWRICEN 0x0010
420#define PCIM_CMD_PERRESPEN 0x0040
421#define PCIM_CMD_SERRESPEN 0x0100
422#define PCIR_STATUS 0x06
423#define PCIR_REVID 0x08
424#define PCIR_PROGIF 0x09
425#define PCIR_SUBCLASS 0x0a
426#define PCIR_CLASS 0x0b
427#define PCIR_CACHELNSZ 0x0c
428#define PCIR_LATTIMER 0x0d
429#define PCIR_HEADERTYPE 0x0e
430#define PCIM_MFDEV 0x80
431#define PCIR_BIST 0x0f
432#define PCIR_CAP_PTR 0x34
433
434
435#define PCIR_MAPS 0x10
436#define PCIR_SUBVEND_0 0x2c
437#define PCIR_SUBDEV_0 0x2e
438
439typedef enum
440{
441 AHC_POWER_STATE_D0,
442 AHC_POWER_STATE_D1,
443 AHC_POWER_STATE_D2,
444 AHC_POWER_STATE_D3
445} ahc_power_state;
446
447
448#ifdef CONFIG_EISA
449int ahc_linux_eisa_init(void);
450void ahc_linux_eisa_exit(void);
451int aic7770_map_registers(struct ahc_softc *ahc,
452 u_int port);
453int aic7770_map_int(struct ahc_softc *ahc, u_int irq);
454#else
455static inline int ahc_linux_eisa_init(void) {
456 return -ENODEV;
457}
458static inline void ahc_linux_eisa_exit(void) {
459}
460#endif
461
462
463#ifdef CONFIG_PCI
464int ahc_linux_pci_init(void);
465void ahc_linux_pci_exit(void);
466int ahc_pci_map_registers(struct ahc_softc *ahc);
467int ahc_pci_map_int(struct ahc_softc *ahc);
468
469uint32_t ahc_pci_read_config(ahc_dev_softc_t pci,
470 int reg, int width);
471
472void ahc_pci_write_config(ahc_dev_softc_t pci,
473 int reg, uint32_t value,
474 int width);
475
476static inline int ahc_get_pci_function(ahc_dev_softc_t);
477static inline int
478ahc_get_pci_function(ahc_dev_softc_t pci)
479{
480 return (PCI_FUNC(pci->devfn));
481}
482
483static inline int ahc_get_pci_slot(ahc_dev_softc_t);
484static inline int
485ahc_get_pci_slot(ahc_dev_softc_t pci)
486{
487 return (PCI_SLOT(pci->devfn));
488}
489
490static inline int ahc_get_pci_bus(ahc_dev_softc_t);
491static inline int
492ahc_get_pci_bus(ahc_dev_softc_t pci)
493{
494 return (pci->bus->number);
495}
496#else
497static inline int ahc_linux_pci_init(void) {
498 return 0;
499}
500static inline void ahc_linux_pci_exit(void) {
501}
502#endif
503
504static inline void ahc_flush_device_writes(struct ahc_softc *);
505static inline void
506ahc_flush_device_writes(struct ahc_softc *ahc)
507{
508
509 ahc_inb(ahc, INTSTAT);
510}
511
512
513int ahc_proc_write_seeprom(struct Scsi_Host *, char *, int);
514int ahc_linux_show_info(struct seq_file *, struct Scsi_Host *);
515
516
517
518static inline void ahc_cmd_set_transaction_status(struct scsi_cmnd *, uint32_t);
519static inline void ahc_set_transaction_status(struct scb *, uint32_t);
520static inline void ahc_cmd_set_scsi_status(struct scsi_cmnd *, uint32_t);
521static inline void ahc_set_scsi_status(struct scb *, uint32_t);
522static inline uint32_t ahc_cmd_get_transaction_status(struct scsi_cmnd *cmd);
523static inline uint32_t ahc_get_transaction_status(struct scb *);
524static inline uint32_t ahc_cmd_get_scsi_status(struct scsi_cmnd *cmd);
525static inline uint32_t ahc_get_scsi_status(struct scb *);
526static inline void ahc_set_transaction_tag(struct scb *, int, u_int);
527static inline u_long ahc_get_transfer_length(struct scb *);
528static inline int ahc_get_transfer_dir(struct scb *);
529static inline void ahc_set_residual(struct scb *, u_long);
530static inline void ahc_set_sense_residual(struct scb *scb, u_long resid);
531static inline u_long ahc_get_residual(struct scb *);
532static inline u_long ahc_get_sense_residual(struct scb *);
533static inline int ahc_perform_autosense(struct scb *);
534static inline uint32_t ahc_get_sense_bufsize(struct ahc_softc *,
535 struct scb *);
536static inline void ahc_notify_xfer_settings_change(struct ahc_softc *,
537 struct ahc_devinfo *);
538static inline void ahc_platform_scb_free(struct ahc_softc *ahc,
539 struct scb *scb);
540static inline void ahc_freeze_scb(struct scb *scb);
541
542static inline
543void ahc_cmd_set_transaction_status(struct scsi_cmnd *cmd, uint32_t status)
544{
545 cmd->result &= ~(CAM_STATUS_MASK << 16);
546 cmd->result |= status << 16;
547}
548
549static inline
550void ahc_set_transaction_status(struct scb *scb, uint32_t status)
551{
552 ahc_cmd_set_transaction_status(scb->io_ctx,status);
553}
554
555static inline
556void ahc_cmd_set_scsi_status(struct scsi_cmnd *cmd, uint32_t status)
557{
558 cmd->result &= ~0xFFFF;
559 cmd->result |= status;
560}
561
562static inline
563void ahc_set_scsi_status(struct scb *scb, uint32_t status)
564{
565 ahc_cmd_set_scsi_status(scb->io_ctx, status);
566}
567
568static inline
569uint32_t ahc_cmd_get_transaction_status(struct scsi_cmnd *cmd)
570{
571 return ((cmd->result >> 16) & CAM_STATUS_MASK);
572}
573
574static inline
575uint32_t ahc_get_transaction_status(struct scb *scb)
576{
577 return (ahc_cmd_get_transaction_status(scb->io_ctx));
578}
579
580static inline
581uint32_t ahc_cmd_get_scsi_status(struct scsi_cmnd *cmd)
582{
583 return (cmd->result & 0xFFFF);
584}
585
586static inline
587uint32_t ahc_get_scsi_status(struct scb *scb)
588{
589 return (ahc_cmd_get_scsi_status(scb->io_ctx));
590}
591
592static inline
593void ahc_set_transaction_tag(struct scb *scb, int enabled, u_int type)
594{
595
596
597
598
599}
600
601static inline
602u_long ahc_get_transfer_length(struct scb *scb)
603{
604 return (scb->platform_data->xfer_len);
605}
606
607static inline
608int ahc_get_transfer_dir(struct scb *scb)
609{
610 return (scb->io_ctx->sc_data_direction);
611}
612
613static inline
614void ahc_set_residual(struct scb *scb, u_long resid)
615{
616 scsi_set_resid(scb->io_ctx, resid);
617}
618
619static inline
620void ahc_set_sense_residual(struct scb *scb, u_long resid)
621{
622 scb->platform_data->sense_resid = resid;
623}
624
625static inline
626u_long ahc_get_residual(struct scb *scb)
627{
628 return scsi_get_resid(scb->io_ctx);
629}
630
631static inline
632u_long ahc_get_sense_residual(struct scb *scb)
633{
634 return (scb->platform_data->sense_resid);
635}
636
637static inline
638int ahc_perform_autosense(struct scb *scb)
639{
640
641
642
643
644
645 return (1);
646}
647
648static inline uint32_t
649ahc_get_sense_bufsize(struct ahc_softc *ahc, struct scb *scb)
650{
651 return (sizeof(struct scsi_sense_data));
652}
653
654static inline void
655ahc_notify_xfer_settings_change(struct ahc_softc *ahc,
656 struct ahc_devinfo *devinfo)
657{
658
659}
660
661static inline void
662ahc_platform_scb_free(struct ahc_softc *ahc, struct scb *scb)
663{
664}
665
666int ahc_platform_alloc(struct ahc_softc *ahc, void *platform_arg);
667void ahc_platform_free(struct ahc_softc *ahc);
668void ahc_platform_freeze_devq(struct ahc_softc *ahc, struct scb *scb);
669
670static inline void
671ahc_freeze_scb(struct scb *scb)
672{
673 if ((scb->io_ctx->result & (CAM_DEV_QFRZN << 16)) == 0) {
674 scb->io_ctx->result |= CAM_DEV_QFRZN << 16;
675 scb->platform_data->dev->qfrozen++;
676 }
677}
678
679void ahc_platform_set_tags(struct ahc_softc *ahc, struct scsi_device *sdev,
680 struct ahc_devinfo *devinfo, ahc_queue_alg);
681int ahc_platform_abort_scbs(struct ahc_softc *ahc, int target,
682 char channel, int lun, u_int tag,
683 role_t role, uint32_t status);
684irqreturn_t
685 ahc_linux_isr(int irq, void *dev_id);
686void ahc_platform_flushwork(struct ahc_softc *ahc);
687void ahc_done(struct ahc_softc*, struct scb*);
688void ahc_send_async(struct ahc_softc *, char channel,
689 u_int target, u_int lun, ac_code);
690void ahc_print_path(struct ahc_softc *, struct scb *);
691
692#ifdef CONFIG_PCI
693#define AHC_PCI_CONFIG 1
694#else
695#define AHC_PCI_CONFIG 0
696#endif
697#define bootverbose aic7xxx_verbose
698extern u_int aic7xxx_verbose;
699#endif
700