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42#ifndef _AIC79XX_LINUX_H_
43#define _AIC79XX_LINUX_H_
44
45#include <linux/types.h>
46#include <linux/blkdev.h>
47#include <linux/delay.h>
48#include <linux/ioport.h>
49#include <linux/pci.h>
50#include <linux/interrupt.h>
51#include <linux/module.h>
52#include <linux/slab.h>
53#include <asm/byteorder.h>
54#include <asm/io.h>
55
56#include <scsi/scsi.h>
57#include <scsi/scsi_cmnd.h>
58#include <scsi/scsi_eh.h>
59#include <scsi/scsi_device.h>
60#include <scsi/scsi_host.h>
61#include <scsi/scsi_tcq.h>
62#include <scsi/scsi_transport.h>
63#include <scsi/scsi_transport_spi.h>
64
65
66#define AIC_LIB_PREFIX ahd
67
68
69#ifdef LIST_HEAD
70#undef LIST_HEAD
71#endif
72
73#include "cam.h"
74#include "queue.h"
75#include "scsi_message.h"
76#include "scsi_iu.h"
77#include "aiclib.h"
78
79
80#ifdef CONFIG_AIC79XX_DEBUG_ENABLE
81#ifdef CONFIG_AIC79XX_DEBUG_MASK
82#define AHD_DEBUG 1
83#define AHD_DEBUG_OPTS CONFIG_AIC79XX_DEBUG_MASK
84#else
85
86
87
88#define AHD_DEBUG 1
89#define AHD_DEBUG_OPTS 0
90#endif
91
92#endif
93
94
95#define powerof2(x) ((((x)-1)&(x))==0)
96
97
98struct ahd_softc;
99typedef struct pci_dev *ahd_dev_softc_t;
100typedef struct scsi_cmnd *ahd_io_ctx_t;
101
102
103#define ahd_htobe16(x) cpu_to_be16(x)
104#define ahd_htobe32(x) cpu_to_be32(x)
105#define ahd_htobe64(x) cpu_to_be64(x)
106#define ahd_htole16(x) cpu_to_le16(x)
107#define ahd_htole32(x) cpu_to_le32(x)
108#define ahd_htole64(x) cpu_to_le64(x)
109
110#define ahd_be16toh(x) be16_to_cpu(x)
111#define ahd_be32toh(x) be32_to_cpu(x)
112#define ahd_be64toh(x) be64_to_cpu(x)
113#define ahd_le16toh(x) le16_to_cpu(x)
114#define ahd_le32toh(x) le32_to_cpu(x)
115#define ahd_le64toh(x) le64_to_cpu(x)
116
117
118extern uint32_t aic79xx_allow_memio;
119extern struct scsi_host_template aic79xx_driver_template;
120
121
122
123typedef uint32_t bus_size_t;
124
125typedef enum {
126 BUS_SPACE_MEMIO,
127 BUS_SPACE_PIO
128} bus_space_tag_t;
129
130typedef union {
131 u_long ioport;
132 volatile uint8_t __iomem *maddr;
133} bus_space_handle_t;
134
135typedef struct bus_dma_segment
136{
137 dma_addr_t ds_addr;
138 bus_size_t ds_len;
139} bus_dma_segment_t;
140
141struct ahd_linux_dma_tag
142{
143 bus_size_t alignment;
144 bus_size_t boundary;
145 bus_size_t maxsize;
146};
147typedef struct ahd_linux_dma_tag* bus_dma_tag_t;
148
149typedef dma_addr_t bus_dmamap_t;
150
151typedef int bus_dma_filter_t(void*, dma_addr_t);
152typedef void bus_dmamap_callback_t(void *, bus_dma_segment_t *, int, int);
153
154#define BUS_DMA_WAITOK 0x0
155#define BUS_DMA_NOWAIT 0x1
156#define BUS_DMA_ALLOCNOW 0x2
157#define BUS_DMA_LOAD_SEGS 0x4
158
159
160
161
162#define BUS_SPACE_MAXADDR 0xFFFFFFFF
163#define BUS_SPACE_MAXADDR_32BIT 0xFFFFFFFF
164#define BUS_SPACE_MAXSIZE_32BIT 0xFFFFFFFF
165
166int ahd_dma_tag_create(struct ahd_softc *, bus_dma_tag_t ,
167 bus_size_t , bus_size_t ,
168 dma_addr_t , dma_addr_t ,
169 bus_dma_filter_t*, void *,
170 bus_size_t , int ,
171 bus_size_t , int ,
172 bus_dma_tag_t *);
173
174void ahd_dma_tag_destroy(struct ahd_softc *, bus_dma_tag_t );
175
176int ahd_dmamem_alloc(struct ahd_softc *, bus_dma_tag_t ,
177 void** , int ,
178 bus_dmamap_t* );
179
180void ahd_dmamem_free(struct ahd_softc *, bus_dma_tag_t ,
181 void* , bus_dmamap_t );
182
183void ahd_dmamap_destroy(struct ahd_softc *, bus_dma_tag_t ,
184 bus_dmamap_t );
185
186int ahd_dmamap_load(struct ahd_softc *ahd, bus_dma_tag_t ,
187 bus_dmamap_t , void * ,
188 bus_size_t , bus_dmamap_callback_t *,
189 void *, int );
190
191int ahd_dmamap_unload(struct ahd_softc *, bus_dma_tag_t, bus_dmamap_t);
192
193
194
195
196#define BUS_DMASYNC_PREREAD 0x01
197#define BUS_DMASYNC_POSTREAD 0x02
198#define BUS_DMASYNC_PREWRITE 0x04
199#define BUS_DMASYNC_POSTWRITE 0x08
200
201
202
203
204
205
206
207
208
209#define ahd_dmamap_sync(ahd, dma_tag, dmamap, offset, len, op)
210
211
212typedef struct timer_list ahd_timer_t;
213
214
215#ifdef CONFIG_AIC79XX_REG_PRETTY_PRINT
216#define AIC_DEBUG_REGISTERS 1
217#else
218#define AIC_DEBUG_REGISTERS 0
219#endif
220#include "aic79xx.h"
221
222
223#define ahd_timer_init init_timer
224#define ahd_timer_stop del_timer_sync
225
226
227#include <linux/spinlock.h>
228
229#define AIC79XX_DRIVER_VERSION "3.0"
230
231
232
233
234
235
236
237
238
239
240typedef enum {
241 AHD_DEV_FREEZE_TIL_EMPTY = 0x02,
242 AHD_DEV_Q_BASIC = 0x10,
243 AHD_DEV_Q_TAGGED = 0x20,
244 AHD_DEV_PERIODIC_OTAG = 0x40,
245} ahd_linux_dev_flags;
246
247struct ahd_linux_device {
248 TAILQ_ENTRY(ahd_linux_device) links;
249
250
251
252
253
254 int active;
255
256
257
258
259
260
261
262
263
264 int openings;
265
266
267
268
269
270 u_int qfrozen;
271
272
273
274
275 u_long commands_issued;
276
277
278
279
280
281
282
283 u_int tag_success_count;
284#define AHD_TAG_SUCCESS_INTERVAL 50
285
286 ahd_linux_dev_flags flags;
287
288
289
290
291 struct timer_list timer;
292
293
294
295
296 u_int maxtags;
297
298
299
300
301
302 u_int tags_on_last_queuefull;
303
304
305
306
307
308
309
310 u_int last_queuefull_same_count;
311#define AHD_LOCK_TAGS_COUNT 50
312
313
314
315
316
317
318
319
320
321
322 u_int commands_since_idle_or_otag;
323#define AHD_OTAG_THRESH 500
324};
325
326
327
328
329
330
331
332
333#define AHD_NSEG 128
334
335
336
337
338struct scb_platform_data {
339 struct ahd_linux_device *dev;
340 dma_addr_t buf_busaddr;
341 uint32_t xfer_len;
342 uint32_t sense_resid;
343};
344
345
346
347
348
349
350
351struct ahd_platform_data {
352
353
354
355 struct scsi_target *starget[AHD_NUM_TARGETS];
356
357 spinlock_t spin_lock;
358 struct completion *eh_done;
359 struct Scsi_Host *host;
360#define AHD_LINUX_NOIRQ ((uint32_t)~0)
361 uint32_t irq;
362 uint32_t bios_address;
363 resource_size_t mem_busaddr;
364};
365
366
367#define printf printk
368#define M_NOWAIT GFP_ATOMIC
369#define M_WAITOK 0
370#define malloc(size, type, flags) kmalloc(size, flags)
371#define free(ptr, type) kfree(ptr)
372
373void ahd_delay(long);
374
375
376uint8_t ahd_inb(struct ahd_softc * ahd, long port);
377void ahd_outb(struct ahd_softc * ahd, long port, uint8_t val);
378void ahd_outw_atomic(struct ahd_softc * ahd,
379 long port, uint16_t val);
380void ahd_outsb(struct ahd_softc * ahd, long port,
381 uint8_t *, int count);
382void ahd_insb(struct ahd_softc * ahd, long port,
383 uint8_t *, int count);
384
385
386int ahd_linux_register_host(struct ahd_softc *,
387 struct scsi_host_template *);
388
389
390struct info_str {
391 char *buffer;
392 int length;
393 off_t offset;
394 int pos;
395};
396
397
398static inline void
399ahd_lockinit(struct ahd_softc *ahd)
400{
401 spin_lock_init(&ahd->platform_data->spin_lock);
402}
403
404static inline void
405ahd_lock(struct ahd_softc *ahd, unsigned long *flags)
406{
407 spin_lock_irqsave(&ahd->platform_data->spin_lock, *flags);
408}
409
410static inline void
411ahd_unlock(struct ahd_softc *ahd, unsigned long *flags)
412{
413 spin_unlock_irqrestore(&ahd->platform_data->spin_lock, *flags);
414}
415
416
417
418
419
420
421
422
423
424
425
426#define PCIR_DEVVENDOR 0x00
427#define PCIR_VENDOR 0x00
428#define PCIR_DEVICE 0x02
429#define PCIR_COMMAND 0x04
430#define PCIM_CMD_PORTEN 0x0001
431#define PCIM_CMD_MEMEN 0x0002
432#define PCIM_CMD_BUSMASTEREN 0x0004
433#define PCIM_CMD_MWRICEN 0x0010
434#define PCIM_CMD_PERRESPEN 0x0040
435#define PCIM_CMD_SERRESPEN 0x0100
436#define PCIR_STATUS 0x06
437#define PCIR_REVID 0x08
438#define PCIR_PROGIF 0x09
439#define PCIR_SUBCLASS 0x0a
440#define PCIR_CLASS 0x0b
441#define PCIR_CACHELNSZ 0x0c
442#define PCIR_LATTIMER 0x0d
443#define PCIR_HEADERTYPE 0x0e
444#define PCIM_MFDEV 0x80
445#define PCIR_BIST 0x0f
446#define PCIR_CAP_PTR 0x34
447
448
449#define PCIR_MAPS 0x10
450#define PCIR_SUBVEND_0 0x2c
451#define PCIR_SUBDEV_0 0x2e
452
453
454#define PCIXR_COMMAND 0x96
455#define PCIXR_DEVADDR 0x98
456#define PCIXM_DEVADDR_FNUM 0x0003
457#define PCIXM_DEVADDR_DNUM 0x00F8
458#define PCIXM_DEVADDR_BNUM 0xFF00
459#define PCIXR_STATUS 0x9A
460#define PCIXM_STATUS_64BIT 0x0001
461#define PCIXM_STATUS_133CAP 0x0002
462#define PCIXM_STATUS_SCDISC 0x0004
463#define PCIXM_STATUS_UNEXPSC 0x0008
464#define PCIXM_STATUS_CMPLEXDEV 0x0010
465#define PCIXM_STATUS_MAXMRDBC 0x0060
466#define PCIXM_STATUS_MAXSPLITS 0x0380
467#define PCIXM_STATUS_MAXCRDS 0x1C00
468#define PCIXM_STATUS_RCVDSCEM 0x2000
469
470typedef enum
471{
472 AHD_POWER_STATE_D0,
473 AHD_POWER_STATE_D1,
474 AHD_POWER_STATE_D2,
475 AHD_POWER_STATE_D3
476} ahd_power_state;
477
478void ahd_power_state_change(struct ahd_softc *ahd,
479 ahd_power_state new_state);
480
481
482int ahd_linux_pci_init(void);
483void ahd_linux_pci_exit(void);
484int ahd_pci_map_registers(struct ahd_softc *ahd);
485int ahd_pci_map_int(struct ahd_softc *ahd);
486
487uint32_t ahd_pci_read_config(ahd_dev_softc_t pci,
488 int reg, int width);
489void ahd_pci_write_config(ahd_dev_softc_t pci,
490 int reg, uint32_t value,
491 int width);
492
493static inline int ahd_get_pci_function(ahd_dev_softc_t);
494static inline int
495ahd_get_pci_function(ahd_dev_softc_t pci)
496{
497 return (PCI_FUNC(pci->devfn));
498}
499
500static inline int ahd_get_pci_slot(ahd_dev_softc_t);
501static inline int
502ahd_get_pci_slot(ahd_dev_softc_t pci)
503{
504 return (PCI_SLOT(pci->devfn));
505}
506
507static inline int ahd_get_pci_bus(ahd_dev_softc_t);
508static inline int
509ahd_get_pci_bus(ahd_dev_softc_t pci)
510{
511 return (pci->bus->number);
512}
513
514static inline void ahd_flush_device_writes(struct ahd_softc *);
515static inline void
516ahd_flush_device_writes(struct ahd_softc *ahd)
517{
518
519 ahd_inb(ahd, INTSTAT);
520}
521
522
523int ahd_linux_proc_info(struct Scsi_Host *, char *, char **,
524 off_t, int, int);
525
526
527static inline void ahd_cmd_set_transaction_status(struct scsi_cmnd *, uint32_t);
528static inline void ahd_set_transaction_status(struct scb *, uint32_t);
529static inline void ahd_cmd_set_scsi_status(struct scsi_cmnd *, uint32_t);
530static inline void ahd_set_scsi_status(struct scb *, uint32_t);
531static inline uint32_t ahd_cmd_get_transaction_status(struct scsi_cmnd *cmd);
532static inline uint32_t ahd_get_transaction_status(struct scb *);
533static inline uint32_t ahd_cmd_get_scsi_status(struct scsi_cmnd *cmd);
534static inline uint32_t ahd_get_scsi_status(struct scb *);
535static inline void ahd_set_transaction_tag(struct scb *, int, u_int);
536static inline u_long ahd_get_transfer_length(struct scb *);
537static inline int ahd_get_transfer_dir(struct scb *);
538static inline void ahd_set_residual(struct scb *, u_long);
539static inline void ahd_set_sense_residual(struct scb *scb, u_long resid);
540static inline u_long ahd_get_residual(struct scb *);
541static inline u_long ahd_get_sense_residual(struct scb *);
542static inline int ahd_perform_autosense(struct scb *);
543static inline uint32_t ahd_get_sense_bufsize(struct ahd_softc *,
544 struct scb *);
545static inline void ahd_notify_xfer_settings_change(struct ahd_softc *,
546 struct ahd_devinfo *);
547static inline void ahd_platform_scb_free(struct ahd_softc *ahd,
548 struct scb *scb);
549static inline void ahd_freeze_scb(struct scb *scb);
550
551static inline
552void ahd_cmd_set_transaction_status(struct scsi_cmnd *cmd, uint32_t status)
553{
554 cmd->result &= ~(CAM_STATUS_MASK << 16);
555 cmd->result |= status << 16;
556}
557
558static inline
559void ahd_set_transaction_status(struct scb *scb, uint32_t status)
560{
561 ahd_cmd_set_transaction_status(scb->io_ctx,status);
562}
563
564static inline
565void ahd_cmd_set_scsi_status(struct scsi_cmnd *cmd, uint32_t status)
566{
567 cmd->result &= ~0xFFFF;
568 cmd->result |= status;
569}
570
571static inline
572void ahd_set_scsi_status(struct scb *scb, uint32_t status)
573{
574 ahd_cmd_set_scsi_status(scb->io_ctx, status);
575}
576
577static inline
578uint32_t ahd_cmd_get_transaction_status(struct scsi_cmnd *cmd)
579{
580 return ((cmd->result >> 16) & CAM_STATUS_MASK);
581}
582
583static inline
584uint32_t ahd_get_transaction_status(struct scb *scb)
585{
586 return (ahd_cmd_get_transaction_status(scb->io_ctx));
587}
588
589static inline
590uint32_t ahd_cmd_get_scsi_status(struct scsi_cmnd *cmd)
591{
592 return (cmd->result & 0xFFFF);
593}
594
595static inline
596uint32_t ahd_get_scsi_status(struct scb *scb)
597{
598 return (ahd_cmd_get_scsi_status(scb->io_ctx));
599}
600
601static inline
602void ahd_set_transaction_tag(struct scb *scb, int enabled, u_int type)
603{
604
605
606
607
608}
609
610static inline
611u_long ahd_get_transfer_length(struct scb *scb)
612{
613 return (scb->platform_data->xfer_len);
614}
615
616static inline
617int ahd_get_transfer_dir(struct scb *scb)
618{
619 return (scb->io_ctx->sc_data_direction);
620}
621
622static inline
623void ahd_set_residual(struct scb *scb, u_long resid)
624{
625 scsi_set_resid(scb->io_ctx, resid);
626}
627
628static inline
629void ahd_set_sense_residual(struct scb *scb, u_long resid)
630{
631 scb->platform_data->sense_resid = resid;
632}
633
634static inline
635u_long ahd_get_residual(struct scb *scb)
636{
637 return scsi_get_resid(scb->io_ctx);
638}
639
640static inline
641u_long ahd_get_sense_residual(struct scb *scb)
642{
643 return (scb->platform_data->sense_resid);
644}
645
646static inline
647int ahd_perform_autosense(struct scb *scb)
648{
649
650
651
652
653
654 return (1);
655}
656
657static inline uint32_t
658ahd_get_sense_bufsize(struct ahd_softc *ahd, struct scb *scb)
659{
660 return (sizeof(struct scsi_sense_data));
661}
662
663static inline void
664ahd_notify_xfer_settings_change(struct ahd_softc *ahd,
665 struct ahd_devinfo *devinfo)
666{
667
668}
669
670static inline void
671ahd_platform_scb_free(struct ahd_softc *ahd, struct scb *scb)
672{
673 ahd->flags &= ~AHD_RESOURCE_SHORTAGE;
674}
675
676int ahd_platform_alloc(struct ahd_softc *ahd, void *platform_arg);
677void ahd_platform_free(struct ahd_softc *ahd);
678void ahd_platform_init(struct ahd_softc *ahd);
679void ahd_platform_freeze_devq(struct ahd_softc *ahd, struct scb *scb);
680
681static inline void
682ahd_freeze_scb(struct scb *scb)
683{
684 if ((scb->io_ctx->result & (CAM_DEV_QFRZN << 16)) == 0) {
685 scb->io_ctx->result |= CAM_DEV_QFRZN << 16;
686 scb->platform_data->dev->qfrozen++;
687 }
688}
689
690void ahd_platform_set_tags(struct ahd_softc *ahd, struct scsi_device *sdev,
691 struct ahd_devinfo *devinfo, ahd_queue_alg);
692int ahd_platform_abort_scbs(struct ahd_softc *ahd, int target,
693 char channel, int lun, u_int tag,
694 role_t role, uint32_t status);
695irqreturn_t
696 ahd_linux_isr(int irq, void *dev_id);
697void ahd_done(struct ahd_softc*, struct scb*);
698void ahd_send_async(struct ahd_softc *, char channel,
699 u_int target, u_int lun, ac_code);
700void ahd_print_path(struct ahd_softc *, struct scb *);
701
702#ifdef CONFIG_PCI
703#define AHD_PCI_CONFIG 1
704#else
705#define AHD_PCI_CONFIG 0
706#endif
707#define bootverbose aic79xx_verbose
708extern uint32_t aic79xx_verbose;
709
710#endif
711