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1da177e4 LT |
1 | /* |
2 | * Adaptec AIC7xxx device driver for Linux. | |
3 | * | |
4 | * Copyright (c) 1994 John Aycock | |
5 | * The University of Calgary Department of Computer Science. | |
6 | * | |
7 | * This program is free software; you can redistribute it and/or modify | |
8 | * it under the terms of the GNU General Public License as published by | |
9 | * the Free Software Foundation; either version 2, or (at your option) | |
10 | * any later version. | |
11 | * | |
12 | * This program is distributed in the hope that it will be useful, | |
13 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 | * GNU General Public License for more details. | |
16 | * | |
17 | * You should have received a copy of the GNU General Public License | |
18 | * along with this program; see the file COPYING. If not, write to | |
19 | * the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. | |
20 | * | |
21 | * Copyright (c) 2000-2003 Adaptec Inc. | |
22 | * All rights reserved. | |
23 | * | |
24 | * Redistribution and use in source and binary forms, with or without | |
25 | * modification, are permitted provided that the following conditions | |
26 | * are met: | |
27 | * 1. Redistributions of source code must retain the above copyright | |
28 | * notice, this list of conditions, and the following disclaimer, | |
29 | * without modification. | |
30 | * 2. Redistributions in binary form must reproduce at minimum a disclaimer | |
31 | * substantially similar to the "NO WARRANTY" disclaimer below | |
32 | * ("Disclaimer") and any redistribution must be conditioned upon | |
33 | * including a substantially similar Disclaimer requirement for further | |
34 | * binary redistribution. | |
35 | * 3. Neither the names of the above-listed copyright holders nor the names | |
36 | * of any contributors may be used to endorse or promote products derived | |
37 | * from this software without specific prior written permission. | |
38 | * | |
39 | * Alternatively, this software may be distributed under the terms of the | |
40 | * GNU General Public License ("GPL") version 2 as published by the Free | |
41 | * Software Foundation. | |
42 | * | |
43 | * NO WARRANTY | |
44 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS | |
45 | * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT | |
46 | * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR | |
47 | * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT | |
48 | * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL | |
49 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS | |
50 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) | |
51 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, | |
52 | * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING | |
53 | * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE | |
54 | * POSSIBILITY OF SUCH DAMAGES. | |
55 | * | |
56 | * $Id: //depot/aic7xxx/linux/drivers/scsi/aic7xxx/aic7xxx_osm.h#151 $ | |
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> | |
e4e360c3 | 67 | #include <linux/interrupt.h> |
1da177e4 | 68 | #include <linux/module.h> |
013791ee | 69 | #include <linux/slab.h> |
1da177e4 LT |
70 | #include <asm/byteorder.h> |
71 | #include <asm/io.h> | |
72 | ||
013791ee CH |
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> | |
b1abb4d6 JB |
79 | #include <scsi/scsi_transport.h> |
80 | #include <scsi/scsi_transport_spi.h> | |
1da177e4 LT |
81 | |
82 | /* Core SCSI definitions */ | |
83 | #define AIC_LIB_PREFIX ahc | |
1da177e4 LT |
84 | |
85 | /* Name space conflict with BSD queue macros */ | |
86 | #ifdef LIST_HEAD | |
87 | #undef LIST_HEAD | |
88 | #endif | |
89 | ||
90 | #include "cam.h" | |
91 | #include "queue.h" | |
92 | #include "scsi_message.h" | |
93 | #include "aiclib.h" | |
94 | ||
95 | /*********************************** Debugging ********************************/ | |
96 | #ifdef CONFIG_AIC7XXX_DEBUG_ENABLE | |
97 | #ifdef CONFIG_AIC7XXX_DEBUG_MASK | |
98 | #define AHC_DEBUG 1 | |
99 | #define AHC_DEBUG_OPTS CONFIG_AIC7XXX_DEBUG_MASK | |
100 | #else | |
101 | /* | |
102 | * Compile in debugging code, but do not enable any printfs. | |
103 | */ | |
104 | #define AHC_DEBUG 1 | |
105 | #endif | |
106 | /* No debugging code. */ | |
107 | #endif | |
108 | ||
109 | /************************* Forward Declarations *******************************/ | |
110 | struct ahc_softc; | |
111 | typedef struct pci_dev *ahc_dev_softc_t; | |
013791ee | 112 | typedef struct scsi_cmnd *ahc_io_ctx_t; |
1da177e4 LT |
113 | |
114 | /******************************* Byte Order ***********************************/ | |
115 | #define ahc_htobe16(x) cpu_to_be16(x) | |
116 | #define ahc_htobe32(x) cpu_to_be32(x) | |
117 | #define ahc_htobe64(x) cpu_to_be64(x) | |
118 | #define ahc_htole16(x) cpu_to_le16(x) | |
119 | #define ahc_htole32(x) cpu_to_le32(x) | |
120 | #define ahc_htole64(x) cpu_to_le64(x) | |
121 | ||
122 | #define ahc_be16toh(x) be16_to_cpu(x) | |
123 | #define ahc_be32toh(x) be32_to_cpu(x) | |
124 | #define ahc_be64toh(x) be64_to_cpu(x) | |
125 | #define ahc_le16toh(x) le16_to_cpu(x) | |
126 | #define ahc_le32toh(x) le32_to_cpu(x) | |
127 | #define ahc_le64toh(x) le64_to_cpu(x) | |
128 | ||
1da177e4 LT |
129 | /************************* Configuration Data *********************************/ |
130 | extern u_int aic7xxx_no_probe; | |
131 | extern u_int aic7xxx_allow_memio; | |
013791ee | 132 | extern struct scsi_host_template aic7xxx_driver_template; |
1da177e4 LT |
133 | |
134 | /***************************** Bus Space/DMA **********************************/ | |
135 | ||
136 | typedef uint32_t bus_size_t; | |
137 | ||
138 | typedef enum { | |
139 | BUS_SPACE_MEMIO, | |
140 | BUS_SPACE_PIO | |
141 | } bus_space_tag_t; | |
142 | ||
143 | typedef union { | |
144 | u_long ioport; | |
145 | volatile uint8_t __iomem *maddr; | |
146 | } bus_space_handle_t; | |
147 | ||
148 | typedef struct bus_dma_segment | |
149 | { | |
150 | dma_addr_t ds_addr; | |
151 | bus_size_t ds_len; | |
152 | } bus_dma_segment_t; | |
153 | ||
154 | struct ahc_linux_dma_tag | |
155 | { | |
156 | bus_size_t alignment; | |
157 | bus_size_t boundary; | |
158 | bus_size_t maxsize; | |
159 | }; | |
160 | typedef struct ahc_linux_dma_tag* bus_dma_tag_t; | |
161 | ||
7dfa0f26 | 162 | typedef dma_addr_t bus_dmamap_t; |
1da177e4 LT |
163 | |
164 | typedef int bus_dma_filter_t(void*, dma_addr_t); | |
165 | typedef void bus_dmamap_callback_t(void *, bus_dma_segment_t *, int, int); | |
166 | ||
167 | #define BUS_DMA_WAITOK 0x0 | |
168 | #define BUS_DMA_NOWAIT 0x1 | |
169 | #define BUS_DMA_ALLOCNOW 0x2 | |
170 | #define BUS_DMA_LOAD_SEGS 0x4 /* | |
171 | * Argument is an S/G list not | |
172 | * a single buffer. | |
173 | */ | |
174 | ||
175 | #define BUS_SPACE_MAXADDR 0xFFFFFFFF | |
176 | #define BUS_SPACE_MAXADDR_32BIT 0xFFFFFFFF | |
177 | #define BUS_SPACE_MAXSIZE_32BIT 0xFFFFFFFF | |
178 | ||
179 | int ahc_dma_tag_create(struct ahc_softc *, bus_dma_tag_t /*parent*/, | |
180 | bus_size_t /*alignment*/, bus_size_t /*boundary*/, | |
181 | dma_addr_t /*lowaddr*/, dma_addr_t /*highaddr*/, | |
182 | bus_dma_filter_t*/*filter*/, void */*filterarg*/, | |
183 | bus_size_t /*maxsize*/, int /*nsegments*/, | |
184 | bus_size_t /*maxsegsz*/, int /*flags*/, | |
185 | bus_dma_tag_t */*dma_tagp*/); | |
186 | ||
187 | void ahc_dma_tag_destroy(struct ahc_softc *, bus_dma_tag_t /*tag*/); | |
188 | ||
189 | int ahc_dmamem_alloc(struct ahc_softc *, bus_dma_tag_t /*dmat*/, | |
190 | void** /*vaddr*/, int /*flags*/, | |
191 | bus_dmamap_t* /*mapp*/); | |
192 | ||
193 | void ahc_dmamem_free(struct ahc_softc *, bus_dma_tag_t /*dmat*/, | |
194 | void* /*vaddr*/, bus_dmamap_t /*map*/); | |
195 | ||
196 | void ahc_dmamap_destroy(struct ahc_softc *, bus_dma_tag_t /*tag*/, | |
197 | bus_dmamap_t /*map*/); | |
198 | ||
199 | int ahc_dmamap_load(struct ahc_softc *ahc, bus_dma_tag_t /*dmat*/, | |
200 | bus_dmamap_t /*map*/, void * /*buf*/, | |
201 | bus_size_t /*buflen*/, bus_dmamap_callback_t *, | |
202 | void */*callback_arg*/, int /*flags*/); | |
203 | ||
204 | int ahc_dmamap_unload(struct ahc_softc *, bus_dma_tag_t, bus_dmamap_t); | |
205 | ||
206 | /* | |
207 | * Operations performed by ahc_dmamap_sync(). | |
208 | */ | |
209 | #define BUS_DMASYNC_PREREAD 0x01 /* pre-read synchronization */ | |
210 | #define BUS_DMASYNC_POSTREAD 0x02 /* post-read synchronization */ | |
211 | #define BUS_DMASYNC_PREWRITE 0x04 /* pre-write synchronization */ | |
212 | #define BUS_DMASYNC_POSTWRITE 0x08 /* post-write synchronization */ | |
213 | ||
214 | /* | |
215 | * XXX | |
216 | * ahc_dmamap_sync is only used on buffers allocated with | |
217 | * the pci_alloc_consistent() API. Although I'm not sure how | |
218 | * this works on architectures with a write buffer, Linux does | |
219 | * not have an API to sync "coherent" memory. Perhaps we need | |
220 | * to do an mb()? | |
221 | */ | |
222 | #define ahc_dmamap_sync(ahc, dma_tag, dmamap, offset, len, op) | |
223 | ||
1da177e4 LT |
224 | /********************************** Includes **********************************/ |
225 | #ifdef CONFIG_AIC7XXX_REG_PRETTY_PRINT | |
226 | #define AIC_DEBUG_REGISTERS 1 | |
227 | #else | |
228 | #define AIC_DEBUG_REGISTERS 0 | |
229 | #endif | |
230 | #include "aic7xxx.h" | |
231 | ||
232 | /***************************** Timer Facilities *******************************/ | |
1beb6fa8 | 233 | static inline void |
1da177e4 LT |
234 | ahc_scb_timer_reset(struct scb *scb, u_int usec) |
235 | { | |
1da177e4 LT |
236 | } |
237 | ||
238 | /***************************** SMP support ************************************/ | |
239 | #include <linux/spinlock.h> | |
240 | ||
79778a27 | 241 | #define AIC7XXX_DRIVER_VERSION "7.0" |
1da177e4 | 242 | |
1da177e4 LT |
243 | /*************************** Device Data Structures ***************************/ |
244 | /* | |
245 | * A per probed device structure used to deal with some error recovery | |
246 | * scenarios that the Linux mid-layer code just doesn't know how to | |
247 | * handle. The structure allocated for a device only becomes persistent | |
248 | * after a successfully completed inquiry command to the target when | |
249 | * that inquiry data indicates a lun is present. | |
250 | */ | |
1da177e4 | 251 | typedef enum { |
1da177e4 | 252 | AHC_DEV_FREEZE_TIL_EMPTY = 0x02, /* Freeze queue until active == 0 */ |
1da177e4 LT |
253 | AHC_DEV_Q_BASIC = 0x10, /* Allow basic device queuing */ |
254 | AHC_DEV_Q_TAGGED = 0x20, /* Allow full SCSI2 command queueing */ | |
255 | AHC_DEV_PERIODIC_OTAG = 0x40, /* Send OTAG to prevent starvation */ | |
1da177e4 LT |
256 | } ahc_linux_dev_flags; |
257 | ||
1da177e4 | 258 | struct ahc_linux_device { |
1da177e4 LT |
259 | /* |
260 | * The number of transactions currently | |
261 | * queued to the device. | |
262 | */ | |
263 | int active; | |
264 | ||
265 | /* | |
266 | * The currently allowed number of | |
267 | * transactions that can be queued to | |
268 | * the device. Must be signed for | |
269 | * conversion from tagged to untagged | |
270 | * mode where the device may have more | |
271 | * than one outstanding active transaction. | |
272 | */ | |
273 | int openings; | |
274 | ||
275 | /* | |
276 | * A positive count indicates that this | |
277 | * device's queue is halted. | |
278 | */ | |
279 | u_int qfrozen; | |
280 | ||
281 | /* | |
282 | * Cumulative command counter. | |
283 | */ | |
284 | u_long commands_issued; | |
285 | ||
286 | /* | |
287 | * The number of tagged transactions when | |
288 | * running at our current opening level | |
289 | * that have been successfully received by | |
290 | * this device since the last QUEUE FULL. | |
291 | */ | |
292 | u_int tag_success_count; | |
293 | #define AHC_TAG_SUCCESS_INTERVAL 50 | |
294 | ||
295 | ahc_linux_dev_flags flags; | |
296 | ||
1da177e4 LT |
297 | /* |
298 | * The high limit for the tags variable. | |
299 | */ | |
300 | u_int maxtags; | |
301 | ||
302 | /* | |
303 | * The computed number of tags outstanding | |
304 | * at the time of the last QUEUE FULL event. | |
305 | */ | |
306 | u_int tags_on_last_queuefull; | |
307 | ||
308 | /* | |
309 | * How many times we have seen a queue full | |
310 | * with the same number of tags. This is used | |
311 | * to stop our adaptive queue depth algorithm | |
312 | * on devices with a fixed number of tags. | |
313 | */ | |
314 | u_int last_queuefull_same_count; | |
315 | #define AHC_LOCK_TAGS_COUNT 50 | |
316 | ||
317 | /* | |
318 | * How many transactions have been queued | |
319 | * without the device going idle. We use | |
320 | * this statistic to determine when to issue | |
321 | * an ordered tag to prevent transaction | |
322 | * starvation. This statistic is only updated | |
323 | * if the AHC_DEV_PERIODIC_OTAG flag is set | |
324 | * on this device. | |
325 | */ | |
326 | u_int commands_since_idle_or_otag; | |
327 | #define AHC_OTAG_THRESH 500 | |
1da177e4 LT |
328 | }; |
329 | ||
1da177e4 LT |
330 | /********************* Definitions Required by the Core ***********************/ |
331 | /* | |
332 | * Number of SG segments we require. So long as the S/G segments for | |
333 | * a particular transaction are allocated in a physically contiguous | |
334 | * manner and are allocated below 4GB, the number of S/G segments is | |
335 | * unrestricted. | |
336 | */ | |
1da177e4 | 337 | #define AHC_NSEG 128 |
1da177e4 LT |
338 | |
339 | /* | |
340 | * Per-SCB OSM storage. | |
341 | */ | |
1da177e4 LT |
342 | struct scb_platform_data { |
343 | struct ahc_linux_device *dev; | |
344 | dma_addr_t buf_busaddr; | |
345 | uint32_t xfer_len; | |
346 | uint32_t sense_resid; /* Auto-Sense residual */ | |
1da177e4 LT |
347 | }; |
348 | ||
349 | /* | |
350 | * Define a structure used for each host adapter. All members are | |
351 | * aligned on a boundary >= the size of the member to honor the | |
352 | * alignment restrictions of the various platforms supported by | |
353 | * this driver. | |
354 | */ | |
1da177e4 LT |
355 | struct ahc_platform_data { |
356 | /* | |
357 | * Fields accessed from interrupt context. | |
358 | */ | |
b1abb4d6 | 359 | struct scsi_target *starget[AHC_NUM_TARGETS]; |
1da177e4 LT |
360 | |
361 | spinlock_t spin_lock; | |
1da177e4 | 362 | u_int qfrozen; |
8cac8145 | 363 | struct completion *eh_done; |
1da177e4 LT |
364 | struct Scsi_Host *host; /* pointer to scsi host */ |
365 | #define AHC_LINUX_NOIRQ ((uint32_t)~0) | |
366 | uint32_t irq; /* IRQ for this adapter */ | |
367 | uint32_t bios_address; | |
44850413 | 368 | resource_size_t mem_busaddr; /* Mem Base Addr */ |
1da177e4 LT |
369 | }; |
370 | ||
be0d6768 | 371 | void ahc_delay(long); |
1da177e4 LT |
372 | |
373 | ||
374 | /***************************** Low Level I/O **********************************/ | |
be0d6768 DV |
375 | uint8_t ahc_inb(struct ahc_softc * ahc, long port); |
376 | void ahc_outb(struct ahc_softc * ahc, long port, uint8_t val); | |
377 | void ahc_outsb(struct ahc_softc * ahc, long port, | |
378 | uint8_t *, int count); | |
379 | void ahc_insb(struct ahc_softc * ahc, long port, | |
380 | uint8_t *, int count); | |
1da177e4 LT |
381 | |
382 | /**************************** Initialization **********************************/ | |
383 | int ahc_linux_register_host(struct ahc_softc *, | |
013791ee | 384 | struct scsi_host_template *); |
1da177e4 | 385 | |
1da177e4 LT |
386 | /*************************** Pretty Printing **********************************/ |
387 | struct info_str { | |
388 | char *buffer; | |
389 | int length; | |
390 | off_t offset; | |
391 | int pos; | |
392 | }; | |
393 | ||
1da177e4 LT |
394 | /******************************** Locking *************************************/ |
395 | /* Lock protecting internal data structures */ | |
1da177e4 | 396 | |
1beb6fa8 | 397 | static inline void |
1da177e4 LT |
398 | ahc_lockinit(struct ahc_softc *ahc) |
399 | { | |
400 | spin_lock_init(&ahc->platform_data->spin_lock); | |
401 | } | |
402 | ||
1beb6fa8 | 403 | static inline void |
1da177e4 LT |
404 | ahc_lock(struct ahc_softc *ahc, unsigned long *flags) |
405 | { | |
406 | spin_lock_irqsave(&ahc->platform_data->spin_lock, *flags); | |
407 | } | |
408 | ||
1beb6fa8 | 409 | static inline void |
1da177e4 LT |
410 | ahc_unlock(struct ahc_softc *ahc, unsigned long *flags) |
411 | { | |
412 | spin_unlock_irqrestore(&ahc->platform_data->spin_lock, *flags); | |
413 | } | |
414 | ||
1da177e4 LT |
415 | /******************************* PCI Definitions ******************************/ |
416 | /* | |
417 | * PCIM_xxx: mask to locate subfield in register | |
418 | * PCIR_xxx: config register offset | |
419 | * PCIC_xxx: device class | |
420 | * PCIS_xxx: device subclass | |
421 | * PCIP_xxx: device programming interface | |
422 | * PCIV_xxx: PCI vendor ID (only required to fixup ancient devices) | |
423 | * PCID_xxx: device ID | |
424 | */ | |
425 | #define PCIR_DEVVENDOR 0x00 | |
426 | #define PCIR_VENDOR 0x00 | |
427 | #define PCIR_DEVICE 0x02 | |
428 | #define PCIR_COMMAND 0x04 | |
429 | #define PCIM_CMD_PORTEN 0x0001 | |
430 | #define PCIM_CMD_MEMEN 0x0002 | |
431 | #define PCIM_CMD_BUSMASTEREN 0x0004 | |
432 | #define PCIM_CMD_MWRICEN 0x0010 | |
433 | #define PCIM_CMD_PERRESPEN 0x0040 | |
434 | #define PCIM_CMD_SERRESPEN 0x0100 | |
435 | #define PCIR_STATUS 0x06 | |
436 | #define PCIR_REVID 0x08 | |
437 | #define PCIR_PROGIF 0x09 | |
438 | #define PCIR_SUBCLASS 0x0a | |
439 | #define PCIR_CLASS 0x0b | |
440 | #define PCIR_CACHELNSZ 0x0c | |
441 | #define PCIR_LATTIMER 0x0d | |
442 | #define PCIR_HEADERTYPE 0x0e | |
443 | #define PCIM_MFDEV 0x80 | |
444 | #define PCIR_BIST 0x0f | |
445 | #define PCIR_CAP_PTR 0x34 | |
446 | ||
447 | /* config registers for header type 0 devices */ | |
448 | #define PCIR_MAPS 0x10 | |
449 | #define PCIR_SUBVEND_0 0x2c | |
450 | #define PCIR_SUBDEV_0 0x2e | |
451 | ||
1da177e4 LT |
452 | typedef enum |
453 | { | |
454 | AHC_POWER_STATE_D0, | |
455 | AHC_POWER_STATE_D1, | |
456 | AHC_POWER_STATE_D2, | |
457 | AHC_POWER_STATE_D3 | |
458 | } ahc_power_state; | |
459 | ||
460 | /**************************** VL/EISA Routines ********************************/ | |
1da177e4 | 461 | #ifdef CONFIG_EISA |
1da177e4 LT |
462 | int ahc_linux_eisa_init(void); |
463 | void ahc_linux_eisa_exit(void); | |
464 | int aic7770_map_registers(struct ahc_softc *ahc, | |
465 | u_int port); | |
466 | int aic7770_map_int(struct ahc_softc *ahc, u_int irq); | |
467 | #else | |
468 | static inline int ahc_linux_eisa_init(void) { | |
469 | return -ENODEV; | |
470 | } | |
471 | static inline void ahc_linux_eisa_exit(void) { | |
472 | } | |
473 | #endif | |
474 | ||
475 | /******************************* PCI Routines *********************************/ | |
476 | #ifdef CONFIG_PCI | |
477 | int ahc_linux_pci_init(void); | |
478 | void ahc_linux_pci_exit(void); | |
479 | int ahc_pci_map_registers(struct ahc_softc *ahc); | |
480 | int ahc_pci_map_int(struct ahc_softc *ahc); | |
481 | ||
be0d6768 | 482 | uint32_t ahc_pci_read_config(ahc_dev_softc_t pci, |
1da177e4 LT |
483 | int reg, int width); |
484 | ||
be0d6768 DV |
485 | void ahc_pci_write_config(ahc_dev_softc_t pci, |
486 | int reg, uint32_t value, | |
487 | int width); | |
1da177e4 | 488 | |
1beb6fa8 HH |
489 | static inline int ahc_get_pci_function(ahc_dev_softc_t); |
490 | static inline int | |
1da177e4 LT |
491 | ahc_get_pci_function(ahc_dev_softc_t pci) |
492 | { | |
493 | return (PCI_FUNC(pci->devfn)); | |
494 | } | |
495 | ||
1beb6fa8 HH |
496 | static inline int ahc_get_pci_slot(ahc_dev_softc_t); |
497 | static inline int | |
1da177e4 LT |
498 | ahc_get_pci_slot(ahc_dev_softc_t pci) |
499 | { | |
500 | return (PCI_SLOT(pci->devfn)); | |
501 | } | |
502 | ||
1beb6fa8 HH |
503 | static inline int ahc_get_pci_bus(ahc_dev_softc_t); |
504 | static inline int | |
1da177e4 LT |
505 | ahc_get_pci_bus(ahc_dev_softc_t pci) |
506 | { | |
507 | return (pci->bus->number); | |
508 | } | |
509 | #else | |
510 | static inline int ahc_linux_pci_init(void) { | |
511 | return 0; | |
512 | } | |
513 | static inline void ahc_linux_pci_exit(void) { | |
514 | } | |
515 | #endif | |
516 | ||
1beb6fa8 HH |
517 | static inline void ahc_flush_device_writes(struct ahc_softc *); |
518 | static inline void | |
1da177e4 LT |
519 | ahc_flush_device_writes(struct ahc_softc *ahc) |
520 | { | |
521 | /* XXX Is this sufficient for all architectures??? */ | |
522 | ahc_inb(ahc, INTSTAT); | |
523 | } | |
524 | ||
525 | /**************************** Proc FS Support *********************************/ | |
1da177e4 LT |
526 | int ahc_linux_proc_info(struct Scsi_Host *, char *, char **, |
527 | off_t, int, int); | |
1da177e4 LT |
528 | |
529 | /*************************** Domain Validation ********************************/ | |
1da177e4 | 530 | /*********************** Transaction Access Wrappers *************************/ |
1beb6fa8 HH |
531 | static inline void ahc_cmd_set_transaction_status(struct scsi_cmnd *, uint32_t); |
532 | static inline void ahc_set_transaction_status(struct scb *, uint32_t); | |
533 | static inline void ahc_cmd_set_scsi_status(struct scsi_cmnd *, uint32_t); | |
534 | static inline void ahc_set_scsi_status(struct scb *, uint32_t); | |
535 | static inline uint32_t ahc_cmd_get_transaction_status(struct scsi_cmnd *cmd); | |
536 | static inline uint32_t ahc_get_transaction_status(struct scb *); | |
537 | static inline uint32_t ahc_cmd_get_scsi_status(struct scsi_cmnd *cmd); | |
538 | static inline uint32_t ahc_get_scsi_status(struct scb *); | |
539 | static inline void ahc_set_transaction_tag(struct scb *, int, u_int); | |
540 | static inline u_long ahc_get_transfer_length(struct scb *); | |
541 | static inline int ahc_get_transfer_dir(struct scb *); | |
542 | static inline void ahc_set_residual(struct scb *, u_long); | |
543 | static inline void ahc_set_sense_residual(struct scb *scb, u_long resid); | |
544 | static inline u_long ahc_get_residual(struct scb *); | |
545 | static inline u_long ahc_get_sense_residual(struct scb *); | |
546 | static inline int ahc_perform_autosense(struct scb *); | |
547 | static inline uint32_t ahc_get_sense_bufsize(struct ahc_softc *, | |
1da177e4 | 548 | struct scb *); |
1beb6fa8 | 549 | static inline void ahc_notify_xfer_settings_change(struct ahc_softc *, |
1da177e4 | 550 | struct ahc_devinfo *); |
1beb6fa8 | 551 | static inline void ahc_platform_scb_free(struct ahc_softc *ahc, |
1da177e4 | 552 | struct scb *scb); |
1beb6fa8 | 553 | static inline void ahc_freeze_scb(struct scb *scb); |
1da177e4 | 554 | |
1beb6fa8 | 555 | static inline |
013791ee | 556 | void ahc_cmd_set_transaction_status(struct scsi_cmnd *cmd, uint32_t status) |
1da177e4 LT |
557 | { |
558 | cmd->result &= ~(CAM_STATUS_MASK << 16); | |
559 | cmd->result |= status << 16; | |
560 | } | |
561 | ||
1beb6fa8 | 562 | static inline |
1da177e4 LT |
563 | void ahc_set_transaction_status(struct scb *scb, uint32_t status) |
564 | { | |
565 | ahc_cmd_set_transaction_status(scb->io_ctx,status); | |
566 | } | |
567 | ||
1beb6fa8 | 568 | static inline |
013791ee | 569 | void ahc_cmd_set_scsi_status(struct scsi_cmnd *cmd, uint32_t status) |
1da177e4 LT |
570 | { |
571 | cmd->result &= ~0xFFFF; | |
572 | cmd->result |= status; | |
573 | } | |
574 | ||
1beb6fa8 | 575 | static inline |
1da177e4 LT |
576 | void ahc_set_scsi_status(struct scb *scb, uint32_t status) |
577 | { | |
578 | ahc_cmd_set_scsi_status(scb->io_ctx, status); | |
579 | } | |
580 | ||
1beb6fa8 | 581 | static inline |
013791ee | 582 | uint32_t ahc_cmd_get_transaction_status(struct scsi_cmnd *cmd) |
1da177e4 LT |
583 | { |
584 | return ((cmd->result >> 16) & CAM_STATUS_MASK); | |
585 | } | |
586 | ||
1beb6fa8 | 587 | static inline |
1da177e4 LT |
588 | uint32_t ahc_get_transaction_status(struct scb *scb) |
589 | { | |
590 | return (ahc_cmd_get_transaction_status(scb->io_ctx)); | |
591 | } | |
592 | ||
1beb6fa8 | 593 | static inline |
013791ee | 594 | uint32_t ahc_cmd_get_scsi_status(struct scsi_cmnd *cmd) |
1da177e4 LT |
595 | { |
596 | return (cmd->result & 0xFFFF); | |
597 | } | |
598 | ||
1beb6fa8 | 599 | static inline |
1da177e4 LT |
600 | uint32_t ahc_get_scsi_status(struct scb *scb) |
601 | { | |
602 | return (ahc_cmd_get_scsi_status(scb->io_ctx)); | |
603 | } | |
604 | ||
1beb6fa8 | 605 | static inline |
1da177e4 LT |
606 | void ahc_set_transaction_tag(struct scb *scb, int enabled, u_int type) |
607 | { | |
608 | /* | |
609 | * Nothing to do for linux as the incoming transaction | |
610 | * has no concept of tag/non tagged, etc. | |
611 | */ | |
612 | } | |
613 | ||
1beb6fa8 | 614 | static inline |
1da177e4 LT |
615 | u_long ahc_get_transfer_length(struct scb *scb) |
616 | { | |
617 | return (scb->platform_data->xfer_len); | |
618 | } | |
619 | ||
1beb6fa8 | 620 | static inline |
1da177e4 LT |
621 | int ahc_get_transfer_dir(struct scb *scb) |
622 | { | |
623 | return (scb->io_ctx->sc_data_direction); | |
624 | } | |
625 | ||
1beb6fa8 | 626 | static inline |
1da177e4 LT |
627 | void ahc_set_residual(struct scb *scb, u_long resid) |
628 | { | |
3a57c4a5 | 629 | scsi_set_resid(scb->io_ctx, resid); |
1da177e4 LT |
630 | } |
631 | ||
1beb6fa8 | 632 | static inline |
1da177e4 LT |
633 | void ahc_set_sense_residual(struct scb *scb, u_long resid) |
634 | { | |
635 | scb->platform_data->sense_resid = resid; | |
636 | } | |
637 | ||
1beb6fa8 | 638 | static inline |
1da177e4 LT |
639 | u_long ahc_get_residual(struct scb *scb) |
640 | { | |
3a57c4a5 | 641 | return scsi_get_resid(scb->io_ctx); |
1da177e4 LT |
642 | } |
643 | ||
1beb6fa8 | 644 | static inline |
1da177e4 LT |
645 | u_long ahc_get_sense_residual(struct scb *scb) |
646 | { | |
647 | return (scb->platform_data->sense_resid); | |
648 | } | |
649 | ||
1beb6fa8 | 650 | static inline |
1da177e4 LT |
651 | int ahc_perform_autosense(struct scb *scb) |
652 | { | |
653 | /* | |
654 | * We always perform autosense in Linux. | |
655 | * On other platforms this is set on a | |
656 | * per-transaction basis. | |
657 | */ | |
658 | return (1); | |
659 | } | |
660 | ||
1beb6fa8 | 661 | static inline uint32_t |
1da177e4 LT |
662 | ahc_get_sense_bufsize(struct ahc_softc *ahc, struct scb *scb) |
663 | { | |
664 | return (sizeof(struct scsi_sense_data)); | |
665 | } | |
666 | ||
1beb6fa8 | 667 | static inline void |
1da177e4 LT |
668 | ahc_notify_xfer_settings_change(struct ahc_softc *ahc, |
669 | struct ahc_devinfo *devinfo) | |
670 | { | |
671 | /* Nothing to do here for linux */ | |
672 | } | |
673 | ||
1beb6fa8 | 674 | static inline void |
1da177e4 LT |
675 | ahc_platform_scb_free(struct ahc_softc *ahc, struct scb *scb) |
676 | { | |
1da177e4 LT |
677 | } |
678 | ||
679 | int ahc_platform_alloc(struct ahc_softc *ahc, void *platform_arg); | |
680 | void ahc_platform_free(struct ahc_softc *ahc); | |
681 | void ahc_platform_freeze_devq(struct ahc_softc *ahc, struct scb *scb); | |
682 | ||
1beb6fa8 | 683 | static inline void |
1da177e4 LT |
684 | ahc_freeze_scb(struct scb *scb) |
685 | { | |
686 | if ((scb->io_ctx->result & (CAM_DEV_QFRZN << 16)) == 0) { | |
687 | scb->io_ctx->result |= CAM_DEV_QFRZN << 16; | |
688 | scb->platform_data->dev->qfrozen++; | |
689 | } | |
690 | } | |
691 | ||
9080063f | 692 | void ahc_platform_set_tags(struct ahc_softc *ahc, struct scsi_device *sdev, |
1da177e4 LT |
693 | struct ahc_devinfo *devinfo, ahc_queue_alg); |
694 | int ahc_platform_abort_scbs(struct ahc_softc *ahc, int target, | |
695 | char channel, int lun, u_int tag, | |
696 | role_t role, uint32_t status); | |
697 | irqreturn_t | |
7d12e780 | 698 | ahc_linux_isr(int irq, void *dev_id); |
1da177e4 | 699 | void ahc_platform_flushwork(struct ahc_softc *ahc); |
1da177e4 LT |
700 | void ahc_done(struct ahc_softc*, struct scb*); |
701 | void ahc_send_async(struct ahc_softc *, char channel, | |
9080063f | 702 | u_int target, u_int lun, ac_code); |
1da177e4 LT |
703 | void ahc_print_path(struct ahc_softc *, struct scb *); |
704 | void ahc_platform_dump_card_state(struct ahc_softc *ahc); | |
705 | ||
706 | #ifdef CONFIG_PCI | |
707 | #define AHC_PCI_CONFIG 1 | |
708 | #else | |
709 | #define AHC_PCI_CONFIG 0 | |
710 | #endif | |
711 | #define bootverbose aic7xxx_verbose | |
712 | extern u_int aic7xxx_verbose; | |
713 | #endif /* _AIC7XXX_LINUX_H_ */ |