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1da177e4 LT |
1 | /* |
2 | * Adaptec AIC79xx device driver for Linux. | |
3 | * | |
4 | * Copyright (c) 2000-2001 Adaptec Inc. | |
5 | * All rights reserved. | |
6 | * | |
7 | * Redistribution and use in source and binary forms, with or without | |
8 | * modification, are permitted provided that the following conditions | |
9 | * are met: | |
10 | * 1. Redistributions of source code must retain the above copyright | |
11 | * notice, this list of conditions, and the following disclaimer, | |
12 | * without modification. | |
13 | * 2. Redistributions in binary form must reproduce at minimum a disclaimer | |
14 | * substantially similar to the "NO WARRANTY" disclaimer below | |
15 | * ("Disclaimer") and any redistribution must be conditioned upon | |
16 | * including a substantially similar Disclaimer requirement for further | |
17 | * binary redistribution. | |
18 | * 3. Neither the names of the above-listed copyright holders nor the names | |
19 | * of any contributors may be used to endorse or promote products derived | |
20 | * from this software without specific prior written permission. | |
21 | * | |
22 | * Alternatively, this software may be distributed under the terms of the | |
23 | * GNU General Public License ("GPL") version 2 as published by the Free | |
24 | * Software Foundation. | |
25 | * | |
26 | * NO WARRANTY | |
27 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS | |
28 | * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT | |
29 | * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR | |
30 | * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT | |
31 | * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL | |
32 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS | |
33 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) | |
34 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, | |
35 | * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING | |
36 | * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE | |
37 | * POSSIBILITY OF SUCH DAMAGES. | |
38 | * | |
53467e63 | 39 | * $Id: //depot/aic7xxx/linux/drivers/scsi/aic7xxx/aic79xx_osm.h#166 $ |
1da177e4 LT |
40 | * |
41 | */ | |
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> | |
73a25462 | 50 | #include <linux/interrupt.h> |
1da177e4 | 51 | #include <linux/module.h> |
73a25462 | 52 | #include <linux/slab.h> |
1da177e4 LT |
53 | #include <asm/byteorder.h> |
54 | #include <asm/io.h> | |
55 | ||
73a25462 HR |
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> | |
1da177e4 LT |
64 | |
65 | /* Core SCSI definitions */ | |
66 | #define AIC_LIB_PREFIX ahd | |
1da177e4 | 67 | |
1da177e4 LT |
68 | #include "cam.h" |
69 | #include "queue.h" | |
70 | #include "scsi_message.h" | |
71 | #include "scsi_iu.h" | |
72 | #include "aiclib.h" | |
73 | ||
74 | /*********************************** Debugging ********************************/ | |
75 | #ifdef CONFIG_AIC79XX_DEBUG_ENABLE | |
76 | #ifdef CONFIG_AIC79XX_DEBUG_MASK | |
77 | #define AHD_DEBUG 1 | |
78 | #define AHD_DEBUG_OPTS CONFIG_AIC79XX_DEBUG_MASK | |
79 | #else | |
80 | /* | |
81 | * Compile in debugging code, but do not enable any printfs. | |
82 | */ | |
83 | #define AHD_DEBUG 1 | |
84 | #define AHD_DEBUG_OPTS 0 | |
85 | #endif | |
86 | /* No debugging code. */ | |
87 | #endif | |
88 | ||
89 | /********************************** Misc Macros *******************************/ | |
1da177e4 LT |
90 | #define powerof2(x) ((((x)-1)&(x))==0) |
91 | ||
92 | /************************* Forward Declarations *******************************/ | |
93 | struct ahd_softc; | |
94 | typedef struct pci_dev *ahd_dev_softc_t; | |
73a25462 | 95 | typedef struct scsi_cmnd *ahd_io_ctx_t; |
1da177e4 LT |
96 | |
97 | /******************************* Byte Order ***********************************/ | |
98 | #define ahd_htobe16(x) cpu_to_be16(x) | |
99 | #define ahd_htobe32(x) cpu_to_be32(x) | |
100 | #define ahd_htobe64(x) cpu_to_be64(x) | |
101 | #define ahd_htole16(x) cpu_to_le16(x) | |
102 | #define ahd_htole32(x) cpu_to_le32(x) | |
103 | #define ahd_htole64(x) cpu_to_le64(x) | |
104 | ||
105 | #define ahd_be16toh(x) be16_to_cpu(x) | |
106 | #define ahd_be32toh(x) be32_to_cpu(x) | |
107 | #define ahd_be64toh(x) be64_to_cpu(x) | |
108 | #define ahd_le16toh(x) le16_to_cpu(x) | |
109 | #define ahd_le32toh(x) le32_to_cpu(x) | |
110 | #define ahd_le64toh(x) le64_to_cpu(x) | |
111 | ||
1da177e4 LT |
112 | /************************* Configuration Data *********************************/ |
113 | extern uint32_t aic79xx_allow_memio; | |
73a25462 | 114 | extern struct scsi_host_template aic79xx_driver_template; |
1da177e4 LT |
115 | |
116 | /***************************** Bus Space/DMA **********************************/ | |
117 | ||
118 | typedef uint32_t bus_size_t; | |
119 | ||
120 | typedef enum { | |
121 | BUS_SPACE_MEMIO, | |
122 | BUS_SPACE_PIO | |
123 | } bus_space_tag_t; | |
124 | ||
125 | typedef union { | |
126 | u_long ioport; | |
127 | volatile uint8_t __iomem *maddr; | |
128 | } bus_space_handle_t; | |
129 | ||
130 | typedef struct bus_dma_segment | |
131 | { | |
132 | dma_addr_t ds_addr; | |
133 | bus_size_t ds_len; | |
134 | } bus_dma_segment_t; | |
135 | ||
136 | struct ahd_linux_dma_tag | |
137 | { | |
138 | bus_size_t alignment; | |
139 | bus_size_t boundary; | |
140 | bus_size_t maxsize; | |
141 | }; | |
142 | typedef struct ahd_linux_dma_tag* bus_dma_tag_t; | |
143 | ||
73a25462 | 144 | typedef dma_addr_t bus_dmamap_t; |
1da177e4 LT |
145 | |
146 | typedef int bus_dma_filter_t(void*, dma_addr_t); | |
147 | typedef void bus_dmamap_callback_t(void *, bus_dma_segment_t *, int, int); | |
148 | ||
149 | #define BUS_DMA_WAITOK 0x0 | |
150 | #define BUS_DMA_NOWAIT 0x1 | |
151 | #define BUS_DMA_ALLOCNOW 0x2 | |
152 | #define BUS_DMA_LOAD_SEGS 0x4 /* | |
153 | * Argument is an S/G list not | |
154 | * a single buffer. | |
155 | */ | |
156 | ||
157 | #define BUS_SPACE_MAXADDR 0xFFFFFFFF | |
158 | #define BUS_SPACE_MAXADDR_32BIT 0xFFFFFFFF | |
159 | #define BUS_SPACE_MAXSIZE_32BIT 0xFFFFFFFF | |
160 | ||
161 | int ahd_dma_tag_create(struct ahd_softc *, bus_dma_tag_t /*parent*/, | |
162 | bus_size_t /*alignment*/, bus_size_t /*boundary*/, | |
163 | dma_addr_t /*lowaddr*/, dma_addr_t /*highaddr*/, | |
164 | bus_dma_filter_t*/*filter*/, void */*filterarg*/, | |
165 | bus_size_t /*maxsize*/, int /*nsegments*/, | |
166 | bus_size_t /*maxsegsz*/, int /*flags*/, | |
167 | bus_dma_tag_t */*dma_tagp*/); | |
168 | ||
169 | void ahd_dma_tag_destroy(struct ahd_softc *, bus_dma_tag_t /*tag*/); | |
170 | ||
171 | int ahd_dmamem_alloc(struct ahd_softc *, bus_dma_tag_t /*dmat*/, | |
172 | void** /*vaddr*/, int /*flags*/, | |
173 | bus_dmamap_t* /*mapp*/); | |
174 | ||
175 | void ahd_dmamem_free(struct ahd_softc *, bus_dma_tag_t /*dmat*/, | |
176 | void* /*vaddr*/, bus_dmamap_t /*map*/); | |
177 | ||
178 | void ahd_dmamap_destroy(struct ahd_softc *, bus_dma_tag_t /*tag*/, | |
179 | bus_dmamap_t /*map*/); | |
180 | ||
181 | int ahd_dmamap_load(struct ahd_softc *ahd, bus_dma_tag_t /*dmat*/, | |
182 | bus_dmamap_t /*map*/, void * /*buf*/, | |
183 | bus_size_t /*buflen*/, bus_dmamap_callback_t *, | |
184 | void */*callback_arg*/, int /*flags*/); | |
185 | ||
186 | int ahd_dmamap_unload(struct ahd_softc *, bus_dma_tag_t, bus_dmamap_t); | |
187 | ||
188 | /* | |
189 | * Operations performed by ahd_dmamap_sync(). | |
190 | */ | |
191 | #define BUS_DMASYNC_PREREAD 0x01 /* pre-read synchronization */ | |
192 | #define BUS_DMASYNC_POSTREAD 0x02 /* post-read synchronization */ | |
193 | #define BUS_DMASYNC_PREWRITE 0x04 /* pre-write synchronization */ | |
194 | #define BUS_DMASYNC_POSTWRITE 0x08 /* post-write synchronization */ | |
195 | ||
196 | /* | |
197 | * XXX | |
198 | * ahd_dmamap_sync is only used on buffers allocated with | |
199 | * the pci_alloc_consistent() API. Although I'm not sure how | |
200 | * this works on architectures with a write buffer, Linux does | |
201 | * not have an API to sync "coherent" memory. Perhaps we need | |
202 | * to do an mb()? | |
203 | */ | |
204 | #define ahd_dmamap_sync(ahd, dma_tag, dmamap, offset, len, op) | |
205 | ||
206 | /************************** Timer DataStructures ******************************/ | |
207 | typedef struct timer_list ahd_timer_t; | |
208 | ||
209 | /********************************** Includes **********************************/ | |
210 | #ifdef CONFIG_AIC79XX_REG_PRETTY_PRINT | |
211 | #define AIC_DEBUG_REGISTERS 1 | |
212 | #else | |
213 | #define AIC_DEBUG_REGISTERS 0 | |
214 | #endif | |
215 | #include "aic79xx.h" | |
216 | ||
217 | /***************************** Timer Facilities *******************************/ | |
218 | #define ahd_timer_init init_timer | |
219 | #define ahd_timer_stop del_timer_sync | |
1da177e4 | 220 | |
1da177e4 LT |
221 | /***************************** SMP support ************************************/ |
222 | #include <linux/spinlock.h> | |
223 | ||
cd2f1e69 | 224 | #define AIC79XX_DRIVER_VERSION "3.0" |
1da177e4 | 225 | |
1da177e4 LT |
226 | /*************************** Device Data Structures ***************************/ |
227 | /* | |
228 | * A per probed device structure used to deal with some error recovery | |
229 | * scenarios that the Linux mid-layer code just doesn't know how to | |
230 | * handle. The structure allocated for a device only becomes persistent | |
231 | * after a successfully completed inquiry command to the target when | |
232 | * that inquiry data indicates a lun is present. | |
233 | */ | |
60a13213 | 234 | |
1da177e4 | 235 | typedef enum { |
1da177e4 | 236 | AHD_DEV_FREEZE_TIL_EMPTY = 0x02, /* Freeze queue until active == 0 */ |
1da177e4 LT |
237 | AHD_DEV_Q_BASIC = 0x10, /* Allow basic device queuing */ |
238 | AHD_DEV_Q_TAGGED = 0x20, /* Allow full SCSI2 command queueing */ | |
239 | AHD_DEV_PERIODIC_OTAG = 0x40, /* Send OTAG to prevent starvation */ | |
1da177e4 LT |
240 | } ahd_linux_dev_flags; |
241 | ||
1da177e4 LT |
242 | struct ahd_linux_device { |
243 | TAILQ_ENTRY(ahd_linux_device) links; | |
1da177e4 LT |
244 | |
245 | /* | |
246 | * The number of transactions currently | |
247 | * queued to the device. | |
248 | */ | |
249 | int active; | |
250 | ||
251 | /* | |
252 | * The currently allowed number of | |
253 | * transactions that can be queued to | |
254 | * the device. Must be signed for | |
255 | * conversion from tagged to untagged | |
256 | * mode where the device may have more | |
257 | * than one outstanding active transaction. | |
258 | */ | |
259 | int openings; | |
260 | ||
261 | /* | |
262 | * A positive count indicates that this | |
263 | * device's queue is halted. | |
264 | */ | |
265 | u_int qfrozen; | |
266 | ||
267 | /* | |
268 | * Cumulative command counter. | |
269 | */ | |
270 | u_long commands_issued; | |
271 | ||
272 | /* | |
273 | * The number of tagged transactions when | |
274 | * running at our current opening level | |
275 | * that have been successfully received by | |
276 | * this device since the last QUEUE FULL. | |
277 | */ | |
278 | u_int tag_success_count; | |
279 | #define AHD_TAG_SUCCESS_INTERVAL 50 | |
280 | ||
281 | ahd_linux_dev_flags flags; | |
282 | ||
283 | /* | |
284 | * Per device timer. | |
285 | */ | |
286 | struct timer_list timer; | |
287 | ||
288 | /* | |
289 | * The high limit for the tags variable. | |
290 | */ | |
291 | u_int maxtags; | |
292 | ||
293 | /* | |
294 | * The computed number of tags outstanding | |
295 | * at the time of the last QUEUE FULL event. | |
296 | */ | |
297 | u_int tags_on_last_queuefull; | |
298 | ||
299 | /* | |
300 | * How many times we have seen a queue full | |
301 | * with the same number of tags. This is used | |
302 | * to stop our adaptive queue depth algorithm | |
303 | * on devices with a fixed number of tags. | |
304 | */ | |
305 | u_int last_queuefull_same_count; | |
306 | #define AHD_LOCK_TAGS_COUNT 50 | |
307 | ||
308 | /* | |
309 | * How many transactions have been queued | |
310 | * without the device going idle. We use | |
311 | * this statistic to determine when to issue | |
312 | * an ordered tag to prevent transaction | |
313 | * starvation. This statistic is only updated | |
314 | * if the AHD_DEV_PERIODIC_OTAG flag is set | |
315 | * on this device. | |
316 | */ | |
317 | u_int commands_since_idle_or_otag; | |
318 | #define AHD_OTAG_THRESH 500 | |
1da177e4 LT |
319 | }; |
320 | ||
1da177e4 LT |
321 | /********************* Definitions Required by the Core ***********************/ |
322 | /* | |
323 | * Number of SG segments we require. So long as the S/G segments for | |
324 | * a particular transaction are allocated in a physically contiguous | |
325 | * manner and are allocated below 4GB, the number of S/G segments is | |
326 | * unrestricted. | |
327 | */ | |
1da177e4 | 328 | #define AHD_NSEG 128 |
1da177e4 LT |
329 | |
330 | /* | |
331 | * Per-SCB OSM storage. | |
332 | */ | |
1da177e4 LT |
333 | struct scb_platform_data { |
334 | struct ahd_linux_device *dev; | |
335 | dma_addr_t buf_busaddr; | |
336 | uint32_t xfer_len; | |
337 | uint32_t sense_resid; /* Auto-Sense residual */ | |
1da177e4 LT |
338 | }; |
339 | ||
340 | /* | |
341 | * Define a structure used for each host adapter. All members are | |
342 | * aligned on a boundary >= the size of the member to honor the | |
343 | * alignment restrictions of the various platforms supported by | |
344 | * this driver. | |
345 | */ | |
1da177e4 LT |
346 | struct ahd_platform_data { |
347 | /* | |
348 | * Fields accessed from interrupt context. | |
349 | */ | |
73a25462 | 350 | struct scsi_target *starget[AHD_NUM_TARGETS]; |
1da177e4 LT |
351 | |
352 | spinlock_t spin_lock; | |
7b22da38 | 353 | struct completion *eh_done; |
1da177e4 LT |
354 | struct Scsi_Host *host; /* pointer to scsi host */ |
355 | #define AHD_LINUX_NOIRQ ((uint32_t)~0) | |
356 | uint32_t irq; /* IRQ for this adapter */ | |
357 | uint32_t bios_address; | |
8911c9e3 | 358 | resource_size_t mem_busaddr; /* Mem Base Addr */ |
1da177e4 LT |
359 | }; |
360 | ||
be0d6768 | 361 | void ahd_delay(long); |
1da177e4 LT |
362 | |
363 | /***************************** Low Level I/O **********************************/ | |
be0d6768 | 364 | uint8_t ahd_inb(struct ahd_softc * ahd, long port); |
be0d6768 DV |
365 | void ahd_outb(struct ahd_softc * ahd, long port, uint8_t val); |
366 | void ahd_outw_atomic(struct ahd_softc * ahd, | |
1da177e4 | 367 | long port, uint16_t val); |
be0d6768 | 368 | void ahd_outsb(struct ahd_softc * ahd, long port, |
1da177e4 | 369 | uint8_t *, int count); |
be0d6768 | 370 | void ahd_insb(struct ahd_softc * ahd, long port, |
1da177e4 LT |
371 | uint8_t *, int count); |
372 | ||
1da177e4 LT |
373 | /**************************** Initialization **********************************/ |
374 | int ahd_linux_register_host(struct ahd_softc *, | |
73a25462 | 375 | struct scsi_host_template *); |
1da177e4 | 376 | |
1da177e4 | 377 | /******************************** Locking *************************************/ |
1beb6fa8 | 378 | static inline void |
1da177e4 LT |
379 | ahd_lockinit(struct ahd_softc *ahd) |
380 | { | |
381 | spin_lock_init(&ahd->platform_data->spin_lock); | |
382 | } | |
383 | ||
1beb6fa8 | 384 | static inline void |
1da177e4 LT |
385 | ahd_lock(struct ahd_softc *ahd, unsigned long *flags) |
386 | { | |
387 | spin_lock_irqsave(&ahd->platform_data->spin_lock, *flags); | |
388 | } | |
389 | ||
1beb6fa8 | 390 | static inline void |
1da177e4 LT |
391 | ahd_unlock(struct ahd_softc *ahd, unsigned long *flags) |
392 | { | |
393 | spin_unlock_irqrestore(&ahd->platform_data->spin_lock, *flags); | |
394 | } | |
395 | ||
1da177e4 LT |
396 | /******************************* PCI Definitions ******************************/ |
397 | /* | |
398 | * PCIM_xxx: mask to locate subfield in register | |
399 | * PCIR_xxx: config register offset | |
400 | * PCIC_xxx: device class | |
401 | * PCIS_xxx: device subclass | |
402 | * PCIP_xxx: device programming interface | |
403 | * PCIV_xxx: PCI vendor ID (only required to fixup ancient devices) | |
404 | * PCID_xxx: device ID | |
405 | */ | |
406 | #define PCIR_DEVVENDOR 0x00 | |
407 | #define PCIR_VENDOR 0x00 | |
408 | #define PCIR_DEVICE 0x02 | |
409 | #define PCIR_COMMAND 0x04 | |
410 | #define PCIM_CMD_PORTEN 0x0001 | |
411 | #define PCIM_CMD_MEMEN 0x0002 | |
412 | #define PCIM_CMD_BUSMASTEREN 0x0004 | |
413 | #define PCIM_CMD_MWRICEN 0x0010 | |
414 | #define PCIM_CMD_PERRESPEN 0x0040 | |
415 | #define PCIM_CMD_SERRESPEN 0x0100 | |
416 | #define PCIR_STATUS 0x06 | |
417 | #define PCIR_REVID 0x08 | |
418 | #define PCIR_PROGIF 0x09 | |
419 | #define PCIR_SUBCLASS 0x0a | |
420 | #define PCIR_CLASS 0x0b | |
421 | #define PCIR_CACHELNSZ 0x0c | |
422 | #define PCIR_LATTIMER 0x0d | |
423 | #define PCIR_HEADERTYPE 0x0e | |
424 | #define PCIM_MFDEV 0x80 | |
425 | #define PCIR_BIST 0x0f | |
426 | #define PCIR_CAP_PTR 0x34 | |
427 | ||
428 | /* config registers for header type 0 devices */ | |
429 | #define PCIR_MAPS 0x10 | |
430 | #define PCIR_SUBVEND_0 0x2c | |
431 | #define PCIR_SUBDEV_0 0x2e | |
432 | ||
433 | /****************************** PCI-X definitions *****************************/ | |
434 | #define PCIXR_COMMAND 0x96 | |
435 | #define PCIXR_DEVADDR 0x98 | |
436 | #define PCIXM_DEVADDR_FNUM 0x0003 /* Function Number */ | |
437 | #define PCIXM_DEVADDR_DNUM 0x00F8 /* Device Number */ | |
438 | #define PCIXM_DEVADDR_BNUM 0xFF00 /* Bus Number */ | |
439 | #define PCIXR_STATUS 0x9A | |
440 | #define PCIXM_STATUS_64BIT 0x0001 /* Active 64bit connection to device. */ | |
441 | #define PCIXM_STATUS_133CAP 0x0002 /* Device is 133MHz capable */ | |
442 | #define PCIXM_STATUS_SCDISC 0x0004 /* Split Completion Discarded */ | |
443 | #define PCIXM_STATUS_UNEXPSC 0x0008 /* Unexpected Split Completion */ | |
444 | #define PCIXM_STATUS_CMPLEXDEV 0x0010 /* Device Complexity (set == bridge) */ | |
445 | #define PCIXM_STATUS_MAXMRDBC 0x0060 /* Maximum Burst Read Count */ | |
446 | #define PCIXM_STATUS_MAXSPLITS 0x0380 /* Maximum Split Transactions */ | |
447 | #define PCIXM_STATUS_MAXCRDS 0x1C00 /* Maximum Cumulative Read Size */ | |
448 | #define PCIXM_STATUS_RCVDSCEM 0x2000 /* Received a Split Comp w/Error msg */ | |
449 | ||
1da177e4 LT |
450 | typedef enum |
451 | { | |
452 | AHD_POWER_STATE_D0, | |
453 | AHD_POWER_STATE_D1, | |
454 | AHD_POWER_STATE_D2, | |
455 | AHD_POWER_STATE_D3 | |
456 | } ahd_power_state; | |
457 | ||
458 | void ahd_power_state_change(struct ahd_softc *ahd, | |
459 | ahd_power_state new_state); | |
460 | ||
461 | /******************************* PCI Routines *********************************/ | |
462 | int ahd_linux_pci_init(void); | |
463 | void ahd_linux_pci_exit(void); | |
464 | int ahd_pci_map_registers(struct ahd_softc *ahd); | |
465 | int ahd_pci_map_int(struct ahd_softc *ahd); | |
466 | ||
be0d6768 | 467 | uint32_t ahd_pci_read_config(ahd_dev_softc_t pci, |
1da177e4 | 468 | int reg, int width); |
be0d6768 | 469 | void ahd_pci_write_config(ahd_dev_softc_t pci, |
1da177e4 LT |
470 | int reg, uint32_t value, |
471 | int width); | |
472 | ||
1beb6fa8 HH |
473 | static inline int ahd_get_pci_function(ahd_dev_softc_t); |
474 | static inline int | |
1da177e4 LT |
475 | ahd_get_pci_function(ahd_dev_softc_t pci) |
476 | { | |
477 | return (PCI_FUNC(pci->devfn)); | |
478 | } | |
479 | ||
1beb6fa8 HH |
480 | static inline int ahd_get_pci_slot(ahd_dev_softc_t); |
481 | static inline int | |
1da177e4 LT |
482 | ahd_get_pci_slot(ahd_dev_softc_t pci) |
483 | { | |
484 | return (PCI_SLOT(pci->devfn)); | |
485 | } | |
486 | ||
1beb6fa8 HH |
487 | static inline int ahd_get_pci_bus(ahd_dev_softc_t); |
488 | static inline int | |
1da177e4 LT |
489 | ahd_get_pci_bus(ahd_dev_softc_t pci) |
490 | { | |
491 | return (pci->bus->number); | |
492 | } | |
493 | ||
1beb6fa8 HH |
494 | static inline void ahd_flush_device_writes(struct ahd_softc *); |
495 | static inline void | |
1da177e4 LT |
496 | ahd_flush_device_writes(struct ahd_softc *ahd) |
497 | { | |
498 | /* XXX Is this sufficient for all architectures??? */ | |
499 | ahd_inb(ahd, INTSTAT); | |
500 | } | |
501 | ||
502 | /**************************** Proc FS Support *********************************/ | |
f6f83a6c AV |
503 | int ahd_proc_write_seeprom(struct Scsi_Host *, char *, int); |
504 | int ahd_linux_show_info(struct seq_file *,struct Scsi_Host *); | |
1da177e4 | 505 | |
1da177e4 | 506 | /*********************** Transaction Access Wrappers **************************/ |
1beb6fa8 HH |
507 | static inline void ahd_cmd_set_transaction_status(struct scsi_cmnd *, uint32_t); |
508 | static inline void ahd_set_transaction_status(struct scb *, uint32_t); | |
509 | static inline void ahd_cmd_set_scsi_status(struct scsi_cmnd *, uint32_t); | |
510 | static inline void ahd_set_scsi_status(struct scb *, uint32_t); | |
511 | static inline uint32_t ahd_cmd_get_transaction_status(struct scsi_cmnd *cmd); | |
512 | static inline uint32_t ahd_get_transaction_status(struct scb *); | |
513 | static inline uint32_t ahd_cmd_get_scsi_status(struct scsi_cmnd *cmd); | |
514 | static inline uint32_t ahd_get_scsi_status(struct scb *); | |
515 | static inline void ahd_set_transaction_tag(struct scb *, int, u_int); | |
516 | static inline u_long ahd_get_transfer_length(struct scb *); | |
517 | static inline int ahd_get_transfer_dir(struct scb *); | |
518 | static inline void ahd_set_residual(struct scb *, u_long); | |
519 | static inline void ahd_set_sense_residual(struct scb *scb, u_long resid); | |
520 | static inline u_long ahd_get_residual(struct scb *); | |
521 | static inline u_long ahd_get_sense_residual(struct scb *); | |
522 | static inline int ahd_perform_autosense(struct scb *); | |
523 | static inline uint32_t ahd_get_sense_bufsize(struct ahd_softc *, | |
1da177e4 | 524 | struct scb *); |
1beb6fa8 | 525 | static inline void ahd_notify_xfer_settings_change(struct ahd_softc *, |
1da177e4 | 526 | struct ahd_devinfo *); |
1beb6fa8 | 527 | static inline void ahd_platform_scb_free(struct ahd_softc *ahd, |
1da177e4 | 528 | struct scb *scb); |
1beb6fa8 | 529 | static inline void ahd_freeze_scb(struct scb *scb); |
1da177e4 | 530 | |
1beb6fa8 | 531 | static inline |
73a25462 | 532 | void ahd_cmd_set_transaction_status(struct scsi_cmnd *cmd, uint32_t status) |
1da177e4 LT |
533 | { |
534 | cmd->result &= ~(CAM_STATUS_MASK << 16); | |
535 | cmd->result |= status << 16; | |
536 | } | |
537 | ||
1beb6fa8 | 538 | static inline |
1da177e4 LT |
539 | void ahd_set_transaction_status(struct scb *scb, uint32_t status) |
540 | { | |
541 | ahd_cmd_set_transaction_status(scb->io_ctx,status); | |
542 | } | |
543 | ||
1beb6fa8 | 544 | static inline |
73a25462 | 545 | void ahd_cmd_set_scsi_status(struct scsi_cmnd *cmd, uint32_t status) |
1da177e4 LT |
546 | { |
547 | cmd->result &= ~0xFFFF; | |
548 | cmd->result |= status; | |
549 | } | |
550 | ||
1beb6fa8 | 551 | static inline |
1da177e4 LT |
552 | void ahd_set_scsi_status(struct scb *scb, uint32_t status) |
553 | { | |
554 | ahd_cmd_set_scsi_status(scb->io_ctx, status); | |
555 | } | |
556 | ||
1beb6fa8 | 557 | static inline |
73a25462 | 558 | uint32_t ahd_cmd_get_transaction_status(struct scsi_cmnd *cmd) |
1da177e4 LT |
559 | { |
560 | return ((cmd->result >> 16) & CAM_STATUS_MASK); | |
561 | } | |
562 | ||
1beb6fa8 | 563 | static inline |
1da177e4 LT |
564 | uint32_t ahd_get_transaction_status(struct scb *scb) |
565 | { | |
566 | return (ahd_cmd_get_transaction_status(scb->io_ctx)); | |
567 | } | |
568 | ||
1beb6fa8 | 569 | static inline |
73a25462 | 570 | uint32_t ahd_cmd_get_scsi_status(struct scsi_cmnd *cmd) |
1da177e4 LT |
571 | { |
572 | return (cmd->result & 0xFFFF); | |
573 | } | |
574 | ||
1beb6fa8 | 575 | static inline |
1da177e4 LT |
576 | uint32_t ahd_get_scsi_status(struct scb *scb) |
577 | { | |
578 | return (ahd_cmd_get_scsi_status(scb->io_ctx)); | |
579 | } | |
580 | ||
1beb6fa8 | 581 | static inline |
1da177e4 LT |
582 | void ahd_set_transaction_tag(struct scb *scb, int enabled, u_int type) |
583 | { | |
584 | /* | |
585 | * Nothing to do for linux as the incoming transaction | |
586 | * has no concept of tag/non tagged, etc. | |
587 | */ | |
588 | } | |
589 | ||
1beb6fa8 | 590 | static inline |
1da177e4 LT |
591 | u_long ahd_get_transfer_length(struct scb *scb) |
592 | { | |
593 | return (scb->platform_data->xfer_len); | |
594 | } | |
595 | ||
1beb6fa8 | 596 | static inline |
1da177e4 LT |
597 | int ahd_get_transfer_dir(struct scb *scb) |
598 | { | |
599 | return (scb->io_ctx->sc_data_direction); | |
600 | } | |
601 | ||
1beb6fa8 | 602 | static inline |
1da177e4 LT |
603 | void ahd_set_residual(struct scb *scb, u_long resid) |
604 | { | |
4c688fc7 | 605 | scsi_set_resid(scb->io_ctx, resid); |
1da177e4 LT |
606 | } |
607 | ||
1beb6fa8 | 608 | static inline |
1da177e4 LT |
609 | void ahd_set_sense_residual(struct scb *scb, u_long resid) |
610 | { | |
611 | scb->platform_data->sense_resid = resid; | |
612 | } | |
613 | ||
1beb6fa8 | 614 | static inline |
1da177e4 LT |
615 | u_long ahd_get_residual(struct scb *scb) |
616 | { | |
4c688fc7 | 617 | return scsi_get_resid(scb->io_ctx); |
1da177e4 LT |
618 | } |
619 | ||
1beb6fa8 | 620 | static inline |
1da177e4 LT |
621 | u_long ahd_get_sense_residual(struct scb *scb) |
622 | { | |
623 | return (scb->platform_data->sense_resid); | |
624 | } | |
625 | ||
1beb6fa8 | 626 | static inline |
1da177e4 LT |
627 | int ahd_perform_autosense(struct scb *scb) |
628 | { | |
629 | /* | |
630 | * We always perform autosense in Linux. | |
631 | * On other platforms this is set on a | |
632 | * per-transaction basis. | |
633 | */ | |
634 | return (1); | |
635 | } | |
636 | ||
1beb6fa8 | 637 | static inline uint32_t |
1da177e4 LT |
638 | ahd_get_sense_bufsize(struct ahd_softc *ahd, struct scb *scb) |
639 | { | |
640 | return (sizeof(struct scsi_sense_data)); | |
641 | } | |
642 | ||
1beb6fa8 | 643 | static inline void |
1da177e4 LT |
644 | ahd_notify_xfer_settings_change(struct ahd_softc *ahd, |
645 | struct ahd_devinfo *devinfo) | |
646 | { | |
647 | /* Nothing to do here for linux */ | |
648 | } | |
649 | ||
1beb6fa8 | 650 | static inline void |
1da177e4 LT |
651 | ahd_platform_scb_free(struct ahd_softc *ahd, struct scb *scb) |
652 | { | |
653 | ahd->flags &= ~AHD_RESOURCE_SHORTAGE; | |
654 | } | |
655 | ||
656 | int ahd_platform_alloc(struct ahd_softc *ahd, void *platform_arg); | |
657 | void ahd_platform_free(struct ahd_softc *ahd); | |
658 | void ahd_platform_init(struct ahd_softc *ahd); | |
659 | void ahd_platform_freeze_devq(struct ahd_softc *ahd, struct scb *scb); | |
1da177e4 | 660 | |
1beb6fa8 | 661 | static inline void |
1da177e4 LT |
662 | ahd_freeze_scb(struct scb *scb) |
663 | { | |
664 | if ((scb->io_ctx->result & (CAM_DEV_QFRZN << 16)) == 0) { | |
665 | scb->io_ctx->result |= CAM_DEV_QFRZN << 16; | |
666 | scb->platform_data->dev->qfrozen++; | |
667 | } | |
668 | } | |
669 | ||
f89d0a4e | 670 | void ahd_platform_set_tags(struct ahd_softc *ahd, struct scsi_device *sdev, |
1da177e4 LT |
671 | struct ahd_devinfo *devinfo, ahd_queue_alg); |
672 | int ahd_platform_abort_scbs(struct ahd_softc *ahd, int target, | |
673 | char channel, int lun, u_int tag, | |
674 | role_t role, uint32_t status); | |
675 | irqreturn_t | |
7d12e780 | 676 | ahd_linux_isr(int irq, void *dev_id); |
1da177e4 LT |
677 | void ahd_done(struct ahd_softc*, struct scb*); |
678 | void ahd_send_async(struct ahd_softc *, char channel, | |
f89d0a4e | 679 | u_int target, u_int lun, ac_code); |
1da177e4 | 680 | void ahd_print_path(struct ahd_softc *, struct scb *); |
1da177e4 LT |
681 | |
682 | #ifdef CONFIG_PCI | |
683 | #define AHD_PCI_CONFIG 1 | |
684 | #else | |
685 | #define AHD_PCI_CONFIG 0 | |
686 | #endif | |
687 | #define bootverbose aic79xx_verbose | |
688 | extern uint32_t aic79xx_verbose; | |
689 | ||
690 | #endif /* _AIC79XX_LINUX_H_ */ |