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 | * |
39 | * $Id: //depot/aic7xxx/linux/drivers/scsi/aic7xxx/aic79xx_osm.h#166 $ |
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> |
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 | /* Core SCSI definitions */ |
66 | #define AIC_LIB_PREFIX ahd |
67 | |
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 *******************************/ |
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; |
95 | typedef struct scsi_cmnd *ahd_io_ctx_t; |
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 | |
112 | /************************* Configuration Data *********************************/ |
113 | extern uint32_t aic79xx_allow_memio; |
114 | extern struct scsi_host_template aic79xx_driver_template; |
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 | |
144 | typedef dma_addr_t bus_dmamap_t; |
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 dma_alloc_coherent() 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 | /********************************** Includes **********************************/ |
207 | #ifdef CONFIG_AIC79XX_REG_PRETTY_PRINT |
208 | #define AIC_DEBUG_REGISTERS 1 |
209 | #else |
210 | #define AIC_DEBUG_REGISTERS 0 |
211 | #endif |
212 | #include "aic79xx.h" |
213 | |
214 | /***************************** SMP support ************************************/ |
215 | #include <linux/spinlock.h> |
216 | |
217 | #define AIC79XX_DRIVER_VERSION "3.0" |
218 | |
219 | /*************************** Device Data Structures ***************************/ |
220 | /* |
221 | * A per probed device structure used to deal with some error recovery |
222 | * scenarios that the Linux mid-layer code just doesn't know how to |
223 | * handle. The structure allocated for a device only becomes persistent |
224 | * after a successfully completed inquiry command to the target when |
225 | * that inquiry data indicates a lun is present. |
226 | */ |
227 | |
228 | typedef enum { |
229 | AHD_DEV_FREEZE_TIL_EMPTY = 0x02, /* Freeze queue until active == 0 */ |
230 | AHD_DEV_Q_BASIC = 0x10, /* Allow basic device queuing */ |
231 | AHD_DEV_Q_TAGGED = 0x20, /* Allow full SCSI2 command queueing */ |
232 | AHD_DEV_PERIODIC_OTAG = 0x40, /* Send OTAG to prevent starvation */ |
233 | } ahd_linux_dev_flags; |
234 | |
235 | struct ahd_linux_device { |
236 | TAILQ_ENTRY(ahd_linux_device) links; |
237 | |
238 | /* |
239 | * The number of transactions currently |
240 | * queued to the device. |
241 | */ |
242 | int active; |
243 | |
244 | /* |
245 | * The currently allowed number of |
246 | * transactions that can be queued to |
247 | * the device. Must be signed for |
248 | * conversion from tagged to untagged |
249 | * mode where the device may have more |
250 | * than one outstanding active transaction. |
251 | */ |
252 | int openings; |
253 | |
254 | /* |
255 | * A positive count indicates that this |
256 | * device's queue is halted. |
257 | */ |
258 | u_int qfrozen; |
259 | |
260 | /* |
261 | * Cumulative command counter. |
262 | */ |
263 | u_long commands_issued; |
264 | |
265 | /* |
266 | * The number of tagged transactions when |
267 | * running at our current opening level |
268 | * that have been successfully received by |
269 | * this device since the last QUEUE FULL. |
270 | */ |
271 | u_int tag_success_count; |
272 | #define AHD_TAG_SUCCESS_INTERVAL 50 |
273 | |
274 | ahd_linux_dev_flags flags; |
275 | |
276 | /* |
277 | * Per device timer. |
278 | */ |
279 | struct timer_list timer; |
280 | |
281 | /* |
282 | * The high limit for the tags variable. |
283 | */ |
284 | u_int maxtags; |
285 | |
286 | /* |
287 | * The computed number of tags outstanding |
288 | * at the time of the last QUEUE FULL event. |
289 | */ |
290 | u_int tags_on_last_queuefull; |
291 | |
292 | /* |
293 | * How many times we have seen a queue full |
294 | * with the same number of tags. This is used |
295 | * to stop our adaptive queue depth algorithm |
296 | * on devices with a fixed number of tags. |
297 | */ |
298 | u_int last_queuefull_same_count; |
299 | #define AHD_LOCK_TAGS_COUNT 50 |
300 | |
301 | /* |
302 | * How many transactions have been queued |
303 | * without the device going idle. We use |
304 | * this statistic to determine when to issue |
305 | * an ordered tag to prevent transaction |
306 | * starvation. This statistic is only updated |
307 | * if the AHD_DEV_PERIODIC_OTAG flag is set |
308 | * on this device. |
309 | */ |
310 | u_int commands_since_idle_or_otag; |
311 | #define AHD_OTAG_THRESH 500 |
312 | }; |
313 | |
314 | /********************* Definitions Required by the Core ***********************/ |
315 | /* |
316 | * Number of SG segments we require. So long as the S/G segments for |
317 | * a particular transaction are allocated in a physically contiguous |
318 | * manner and are allocated below 4GB, the number of S/G segments is |
319 | * unrestricted. |
320 | */ |
321 | #define AHD_NSEG 128 |
322 | |
323 | /* |
324 | * Per-SCB OSM storage. |
325 | */ |
326 | struct scb_platform_data { |
327 | struct ahd_linux_device *dev; |
328 | dma_addr_t buf_busaddr; |
329 | uint32_t xfer_len; |
330 | uint32_t sense_resid; /* Auto-Sense residual */ |
331 | }; |
332 | |
333 | /* |
334 | * Define a structure used for each host adapter. All members are |
335 | * aligned on a boundary >= the size of the member to honor the |
336 | * alignment restrictions of the various platforms supported by |
337 | * this driver. |
338 | */ |
339 | struct ahd_platform_data { |
340 | /* |
341 | * Fields accessed from interrupt context. |
342 | */ |
343 | struct scsi_target *starget[AHD_NUM_TARGETS]; |
344 | |
345 | spinlock_t spin_lock; |
346 | struct completion *eh_done; |
347 | struct Scsi_Host *host; /* pointer to scsi host */ |
348 | #define AHD_LINUX_NOIRQ ((uint32_t)~0) |
349 | uint32_t irq; /* IRQ for this adapter */ |
350 | uint32_t bios_address; |
351 | resource_size_t mem_busaddr; /* Mem Base Addr */ |
352 | }; |
353 | |
354 | void ahd_delay(long); |
355 | |
356 | /***************************** Low Level I/O **********************************/ |
357 | uint8_t ahd_inb(struct ahd_softc * ahd, long port); |
358 | void ahd_outb(struct ahd_softc * ahd, long port, uint8_t val); |
359 | void ahd_outw_atomic(struct ahd_softc * ahd, |
360 | long port, uint16_t val); |
361 | void ahd_outsb(struct ahd_softc * ahd, long port, |
362 | uint8_t *, int count); |
363 | void ahd_insb(struct ahd_softc * ahd, long port, |
364 | uint8_t *, int count); |
365 | |
366 | /**************************** Initialization **********************************/ |
367 | int ahd_linux_register_host(struct ahd_softc *, |
368 | struct scsi_host_template *); |
369 | |
370 | /******************************** Locking *************************************/ |
371 | static inline void |
372 | ahd_lockinit(struct ahd_softc *ahd) |
373 | { |
374 | spin_lock_init(&ahd->platform_data->spin_lock); |
375 | } |
376 | |
377 | static inline void |
378 | ahd_lock(struct ahd_softc *ahd, unsigned long *flags) |
379 | { |
380 | spin_lock_irqsave(&ahd->platform_data->spin_lock, *flags); |
381 | } |
382 | |
383 | static inline void |
384 | ahd_unlock(struct ahd_softc *ahd, unsigned long *flags) |
385 | { |
386 | spin_unlock_irqrestore(lock: &ahd->platform_data->spin_lock, flags: *flags); |
387 | } |
388 | |
389 | /******************************* PCI Definitions ******************************/ |
390 | /* |
391 | * PCIM_xxx: mask to locate subfield in register |
392 | * PCIR_xxx: config register offset |
393 | * PCIC_xxx: device class |
394 | * PCIS_xxx: device subclass |
395 | * PCIP_xxx: device programming interface |
396 | * PCIV_xxx: PCI vendor ID (only required to fixup ancient devices) |
397 | * PCID_xxx: device ID |
398 | */ |
399 | #define PCIR_DEVVENDOR 0x00 |
400 | #define PCIR_VENDOR 0x00 |
401 | #define PCIR_DEVICE 0x02 |
402 | #define PCIR_COMMAND 0x04 |
403 | #define PCIM_CMD_PORTEN 0x0001 |
404 | #define PCIM_CMD_MEMEN 0x0002 |
405 | #define PCIM_CMD_BUSMASTEREN 0x0004 |
406 | #define PCIM_CMD_MWRICEN 0x0010 |
407 | #define PCIM_CMD_PERRESPEN 0x0040 |
408 | #define PCIM_CMD_SERRESPEN 0x0100 |
409 | #define PCIR_STATUS 0x06 |
410 | #define PCIR_REVID 0x08 |
411 | #define PCIR_PROGIF 0x09 |
412 | #define PCIR_SUBCLASS 0x0a |
413 | #define PCIR_CLASS 0x0b |
414 | #define PCIR_CACHELNSZ 0x0c |
415 | #define PCIR_LATTIMER 0x0d |
416 | #define 0x0e |
417 | #define PCIM_MFDEV 0x80 |
418 | #define PCIR_BIST 0x0f |
419 | #define PCIR_CAP_PTR 0x34 |
420 | |
421 | /* config registers for header type 0 devices */ |
422 | #define PCIR_MAPS 0x10 |
423 | |
424 | /****************************** PCI-X definitions *****************************/ |
425 | #define PCIXR_COMMAND 0x96 |
426 | #define PCIXR_DEVADDR 0x98 |
427 | #define PCIXM_DEVADDR_FNUM 0x0003 /* Function Number */ |
428 | #define PCIXM_DEVADDR_DNUM 0x00F8 /* Device Number */ |
429 | #define PCIXM_DEVADDR_BNUM 0xFF00 /* Bus Number */ |
430 | #define PCIXR_STATUS 0x9A |
431 | #define PCIXM_STATUS_64BIT 0x0001 /* Active 64bit connection to device. */ |
432 | #define PCIXM_STATUS_133CAP 0x0002 /* Device is 133MHz capable */ |
433 | #define PCIXM_STATUS_SCDISC 0x0004 /* Split Completion Discarded */ |
434 | #define PCIXM_STATUS_UNEXPSC 0x0008 /* Unexpected Split Completion */ |
435 | #define PCIXM_STATUS_CMPLEXDEV 0x0010 /* Device Complexity (set == bridge) */ |
436 | #define PCIXM_STATUS_MAXMRDBC 0x0060 /* Maximum Burst Read Count */ |
437 | #define PCIXM_STATUS_MAXSPLITS 0x0380 /* Maximum Split Transactions */ |
438 | #define PCIXM_STATUS_MAXCRDS 0x1C00 /* Maximum Cumulative Read Size */ |
439 | #define PCIXM_STATUS_RCVDSCEM 0x2000 /* Received a Split Comp w/Error msg */ |
440 | |
441 | typedef enum |
442 | { |
443 | AHD_POWER_STATE_D0, |
444 | AHD_POWER_STATE_D1, |
445 | AHD_POWER_STATE_D2, |
446 | AHD_POWER_STATE_D3 |
447 | } ahd_power_state; |
448 | |
449 | void ahd_power_state_change(struct ahd_softc *ahd, |
450 | ahd_power_state new_state); |
451 | |
452 | /******************************* PCI Routines *********************************/ |
453 | int ahd_linux_pci_init(void); |
454 | void ahd_linux_pci_exit(void); |
455 | int ahd_pci_map_registers(struct ahd_softc *ahd); |
456 | int ahd_pci_map_int(struct ahd_softc *ahd); |
457 | |
458 | uint32_t ahd_pci_read_config(ahd_dev_softc_t pci, |
459 | int reg, int width); |
460 | void ahd_pci_write_config(ahd_dev_softc_t pci, |
461 | int reg, uint32_t value, |
462 | int width); |
463 | |
464 | static inline int ahd_get_pci_function(ahd_dev_softc_t); |
465 | static inline int |
466 | ahd_get_pci_function(ahd_dev_softc_t pci) |
467 | { |
468 | return (PCI_FUNC(pci->devfn)); |
469 | } |
470 | |
471 | static inline int ahd_get_pci_slot(ahd_dev_softc_t); |
472 | static inline int |
473 | ahd_get_pci_slot(ahd_dev_softc_t pci) |
474 | { |
475 | return (PCI_SLOT(pci->devfn)); |
476 | } |
477 | |
478 | static inline int ahd_get_pci_bus(ahd_dev_softc_t); |
479 | static inline int |
480 | ahd_get_pci_bus(ahd_dev_softc_t pci) |
481 | { |
482 | return (pci->bus->number); |
483 | } |
484 | |
485 | static inline void ahd_flush_device_writes(struct ahd_softc *); |
486 | static inline void |
487 | ahd_flush_device_writes(struct ahd_softc *ahd) |
488 | { |
489 | /* XXX Is this sufficient for all architectures??? */ |
490 | ahd_inb(ahd, port: INTSTAT); |
491 | } |
492 | |
493 | /**************************** Proc FS Support *********************************/ |
494 | int ahd_proc_write_seeprom(struct Scsi_Host *, char *, int); |
495 | int ahd_linux_show_info(struct seq_file *,struct Scsi_Host *); |
496 | |
497 | /*********************** Transaction Access Wrappers **************************/ |
498 | |
499 | static inline |
500 | void ahd_cmd_set_transaction_status(struct scsi_cmnd *cmd, uint32_t status) |
501 | { |
502 | cmd->result &= ~(CAM_STATUS_MASK << 16); |
503 | cmd->result |= status << 16; |
504 | } |
505 | |
506 | static inline |
507 | void ahd_set_transaction_status(struct scb *scb, uint32_t status) |
508 | { |
509 | ahd_cmd_set_transaction_status(cmd: scb->io_ctx,status); |
510 | } |
511 | |
512 | static inline |
513 | void ahd_cmd_set_scsi_status(struct scsi_cmnd *cmd, uint32_t status) |
514 | { |
515 | cmd->result &= ~0xFFFF; |
516 | cmd->result |= status; |
517 | } |
518 | |
519 | static inline |
520 | void ahd_set_scsi_status(struct scb *scb, uint32_t status) |
521 | { |
522 | ahd_cmd_set_scsi_status(cmd: scb->io_ctx, status); |
523 | } |
524 | |
525 | static inline |
526 | uint32_t ahd_cmd_get_transaction_status(struct scsi_cmnd *cmd) |
527 | { |
528 | return ((cmd->result >> 16) & CAM_STATUS_MASK); |
529 | } |
530 | |
531 | static inline |
532 | uint32_t ahd_get_transaction_status(struct scb *scb) |
533 | { |
534 | return (ahd_cmd_get_transaction_status(cmd: scb->io_ctx)); |
535 | } |
536 | |
537 | static inline |
538 | uint32_t ahd_cmd_get_scsi_status(struct scsi_cmnd *cmd) |
539 | { |
540 | return (cmd->result & 0xFFFF); |
541 | } |
542 | |
543 | static inline |
544 | uint32_t ahd_get_scsi_status(struct scb *scb) |
545 | { |
546 | return (ahd_cmd_get_scsi_status(cmd: scb->io_ctx)); |
547 | } |
548 | |
549 | static inline |
550 | void ahd_set_transaction_tag(struct scb *scb, int enabled, u_int type) |
551 | { |
552 | /* |
553 | * Nothing to do for linux as the incoming transaction |
554 | * has no concept of tag/non tagged, etc. |
555 | */ |
556 | } |
557 | |
558 | static inline |
559 | u_long ahd_get_transfer_length(struct scb *scb) |
560 | { |
561 | return (scb->platform_data->xfer_len); |
562 | } |
563 | |
564 | static inline |
565 | int ahd_get_transfer_dir(struct scb *scb) |
566 | { |
567 | return (scb->io_ctx->sc_data_direction); |
568 | } |
569 | |
570 | static inline |
571 | void ahd_set_residual(struct scb *scb, u_long resid) |
572 | { |
573 | scsi_set_resid(cmd: scb->io_ctx, resid); |
574 | } |
575 | |
576 | static inline |
577 | void ahd_set_sense_residual(struct scb *scb, u_long resid) |
578 | { |
579 | scb->platform_data->sense_resid = resid; |
580 | } |
581 | |
582 | static inline |
583 | u_long ahd_get_residual(struct scb *scb) |
584 | { |
585 | return scsi_get_resid(cmd: scb->io_ctx); |
586 | } |
587 | |
588 | static inline |
589 | u_long ahd_get_sense_residual(struct scb *scb) |
590 | { |
591 | return (scb->platform_data->sense_resid); |
592 | } |
593 | |
594 | static inline |
595 | int ahd_perform_autosense(struct scb *scb) |
596 | { |
597 | /* |
598 | * We always perform autosense in Linux. |
599 | * On other platforms this is set on a |
600 | * per-transaction basis. |
601 | */ |
602 | return (1); |
603 | } |
604 | |
605 | static inline uint32_t |
606 | ahd_get_sense_bufsize(struct ahd_softc *ahd, struct scb *scb) |
607 | { |
608 | return (sizeof(struct scsi_sense_data)); |
609 | } |
610 | |
611 | static inline void |
612 | ahd_notify_xfer_settings_change(struct ahd_softc *ahd, |
613 | struct ahd_devinfo *devinfo) |
614 | { |
615 | /* Nothing to do here for linux */ |
616 | } |
617 | |
618 | static inline void |
619 | ahd_platform_scb_free(struct ahd_softc *ahd, struct scb *scb) |
620 | { |
621 | ahd->flags &= ~AHD_RESOURCE_SHORTAGE; |
622 | } |
623 | |
624 | int ahd_platform_alloc(struct ahd_softc *ahd, void *platform_arg); |
625 | void ahd_platform_free(struct ahd_softc *ahd); |
626 | void ahd_platform_init(struct ahd_softc *ahd); |
627 | void ahd_platform_freeze_devq(struct ahd_softc *ahd, struct scb *scb); |
628 | |
629 | static inline void |
630 | ahd_freeze_scb(struct scb *scb) |
631 | { |
632 | if ((scb->io_ctx->result & (CAM_DEV_QFRZN << 16)) == 0) { |
633 | scb->io_ctx->result |= CAM_DEV_QFRZN << 16; |
634 | scb->platform_data->dev->qfrozen++; |
635 | } |
636 | } |
637 | |
638 | void ahd_platform_set_tags(struct ahd_softc *ahd, struct scsi_device *sdev, |
639 | struct ahd_devinfo *devinfo, ahd_queue_alg); |
640 | int ahd_platform_abort_scbs(struct ahd_softc *ahd, int target, |
641 | char channel, int lun, u_int tag, |
642 | role_t role, uint32_t status); |
643 | irqreturn_t |
644 | ahd_linux_isr(int irq, void *dev_id); |
645 | void ahd_done(struct ahd_softc*, struct scb*); |
646 | void ahd_send_async(struct ahd_softc *, char channel, |
647 | u_int target, u_int lun, ac_code); |
648 | void ahd_print_path(struct ahd_softc *, struct scb *); |
649 | |
650 | #ifdef CONFIG_PCI |
651 | #define AHD_PCI_CONFIG 1 |
652 | #else |
653 | #define AHD_PCI_CONFIG 0 |
654 | #endif |
655 | #define bootverbose aic79xx_verbose |
656 | extern uint32_t aic79xx_verbose; |
657 | |
658 | #endif /* _AIC79XX_LINUX_H_ */ |
659 | |