1 /*
2 * QLogic ISP1020 Intelligent SCSI Processor Driver (PCI)
3 * Written by Erik H. Moe, ehm@cris.com
4 * Copyright 1995, Erik H. Moe
5 * Copyright 1996, 1997 Michael A. Griffith <grif@acm.org>
6 * Copyright 2000, Jayson C. Vantuyl <vantuyl@csc.smsu.edu>
7 * and Bryon W. Roche <bryon@csc.smsu.edu>
8 *
9 * 64-bit addressing added by Kanoj Sarcar <kanoj@sgi.com>
10 * and Leo Dagum <dagum@sgi.com>
11 *
12 * This program is free software; you can redistribute it and/or modify it
13 * under the terms of the GNU General Public License as published by the
14 * Free Software Foundation; either version 2, or (at your option) any
15 * later version.
16 *
17 * This program is distributed in the hope that it will be useful, but
18 * WITHOUT ANY WARRANTY; without even the implied warranty of
19 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
20 * General Public License for more details.
21 */
22
23 #include <linux/blk.h>
24 #include <linux/config.h>
25 #include <linux/kernel.h>
26 #include <linux/string.h>
27 #include <linux/ioport.h>
28 #include <linux/sched.h>
29 #include <linux/types.h>
30 #include <linux/pci.h>
31 #include <linux/delay.h>
32 #include <linux/unistd.h>
33 #include <linux/spinlock.h>
34 #include <asm/io.h>
35 #include <asm/irq.h>
36 #include <asm/byteorder.h>
37
38 #include "sd.h"
39 #include "hosts.h"
40 #include "qlogicisp.h"
41
42 /* Configuration section *****************************************************/
43
44 /* Set the following macro to 1 to reload the ISP1020's firmware. This is
45 the latest firmware provided by QLogic. This may be an earlier/later
46 revision than supplied by your board. */
47
48 #define RELOAD_FIRMWARE 1
49
50 /* Set the following macro to 1 to reload the ISP1020's defaults from nvram.
51 If you are not sure of your settings, leave this alone, the driver will
52 use a set of 'safe' defaults */
53
54 #define USE_NVRAM_DEFAULTS 0
55
56 /* Macros used for debugging */
57
58 #define DEBUG_ISP1020 0
59 #define DEBUG_ISP1020_INTR 0
60 #define DEBUG_ISP1020_SETUP 0
61 #define TRACE_ISP 0
62
63 #define DEFAULT_LOOP_COUNT 1000000
64
65 /* End Configuration section *************************************************/
66
67 #include <linux/module.h>
68
69 #if TRACE_ISP
70
71 # define TRACE_BUF_LEN (32*1024)
72
73 struct {
74 u_long next;
75 struct {
76 u_long time;
77 u_int index;
78 u_int addr;
79 u_char * name;
80 } buf[TRACE_BUF_LEN];
81 } trace;
82
83 #define TRACE(w, i, a) \
84 { \
85 unsigned long flags; \
86 \
87 save_flags(flags); \
88 cli(); \
89 trace.buf[trace.next].name = (w); \
90 trace.buf[trace.next].time = jiffies; \
91 trace.buf[trace.next].index = (i); \
92 trace.buf[trace.next].addr = (long) (a); \
93 trace.next = (trace.next + 1) & (TRACE_BUF_LEN - 1); \
94 restore_flags(flags); \
95 }
96
97 #else
98 # define TRACE(w, i, a)
99 #endif
100
101 #if DEBUG_ISP1020
102 #define ENTER(x) printk("isp1020 : entering %s()\n", x);
103 #define LEAVE(x) printk("isp1020 : leaving %s()\n", x);
104 #define DEBUG(x) x
105 #else
106 #define ENTER(x)
107 #define LEAVE(x)
108 #define DEBUG(x)
109 #endif /* DEBUG_ISP1020 */
110
111 #if DEBUG_ISP1020_INTR
112 #define ENTER_INTR(x) printk("isp1020 : entering %s()\n", x);
113 #define LEAVE_INTR(x) printk("isp1020 : leaving %s()\n", x);
114 #define DEBUG_INTR(x) x
115 #else
116 #define ENTER_INTR(x)
117 #define LEAVE_INTR(x)
118 #define DEBUG_INTR(x)
119 #endif /* DEBUG ISP1020_INTR */
120
121 #define ISP1020_REV_ID 1
122
123 #define MAX_TARGETS 16
124 #define MAX_LUNS 8
125
126 /* host configuration and control registers */
127 #define HOST_HCCR 0xc0 /* host command and control */
128
129 /* pci bus interface registers */
130 #define PCI_ID_LOW 0x00 /* vendor id */
131 #define PCI_ID_HIGH 0x02 /* device id */
132 #define ISP_CFG0 0x04 /* configuration register #0 */
133 #define ISP_CFG0_HWMSK 0x000f /* Hardware revision mask */
134 #define ISP_CFG0_1020 0x0001 /* ISP1020 */
135 #define ISP_CFG0_1020A 0x0002 /* ISP1020A */
136 #define ISP_CFG0_1040 0x0003 /* ISP1040 */
137 #define ISP_CFG0_1040A 0x0004 /* ISP1040A */
138 #define ISP_CFG0_1040B 0x0005 /* ISP1040B */
139 #define ISP_CFG0_1040C 0x0006 /* ISP1040C */
140 #define ISP_CFG1 0x06 /* configuration register #1 */
141 #define ISP_CFG1_F128 0x0040 /* 128-byte FIFO threshold */
142 #define ISP_CFG1_F64 0x0030 /* 128-byte FIFO threshold */
143 #define ISP_CFG1_F32 0x0020 /* 128-byte FIFO threshold */
144 #define ISP_CFG1_F16 0x0010 /* 128-byte FIFO threshold */
145 #define ISP_CFG1_BENAB 0x0004 /* Global Bus burst enable */
146 #define ISP_CFG1_SXP 0x0001 /* SXP register select */
147 #define PCI_INTF_CTL 0x08 /* pci interface control */
148 #define PCI_INTF_STS 0x0a /* pci interface status */
149 #define PCI_SEMAPHORE 0x0c /* pci semaphore */
150 #define PCI_NVRAM 0x0e /* pci nvram interface */
151 #define CDMA_CONF 0x20 /* Command DMA Config */
152 #define DDMA_CONF 0x40 /* Data DMA Config */
153 #define DMA_CONF_SENAB 0x0008 /* SXP to DMA Data enable */
154 #define DMA_CONF_RIRQ 0x0004 /* RISC interrupt enable */
155 #define DMA_CONF_BENAB 0x0002 /* Bus burst enable */
156 #define DMA_CONF_DIR 0x0001 /* DMA direction (0=fifo->host 1=host->fifo) */
157
158 /* mailbox registers */
159 #define MBOX0 0x70 /* mailbox 0 */
160 #define MBOX1 0x72 /* mailbox 1 */
161 #define MBOX2 0x74 /* mailbox 2 */
162 #define MBOX3 0x76 /* mailbox 3 */
163 #define MBOX4 0x78 /* mailbox 4 */
164 #define MBOX5 0x7a /* mailbox 5 */
165 #define MBOX6 0x7c /* mailbox 6 */
166 #define MBOX7 0x7e /* mailbox 7 */
167
168 /* mailbox command complete status codes */
169 #define MBOX_COMMAND_COMPLETE 0x4000
170 #define INVALID_COMMAND 0x4001
171 #define HOST_INTERFACE_ERROR 0x4002
172 #define TEST_FAILED 0x4003
173 #define COMMAND_ERROR 0x4005
174 #define COMMAND_PARAM_ERROR 0x4006
175
176 /* async event status codes */
177 #define ASYNC_SCSI_BUS_RESET 0x8001
178 #define SYSTEM_ERROR 0x8002
179 #define REQUEST_TRANSFER_ERROR 0x8003
180 #define RESPONSE_TRANSFER_ERROR 0x8004
181 #define REQUEST_QUEUE_WAKEUP 0x8005
182 #define EXECUTION_TIMEOUT_RESET 0x8006
183
184 #ifdef CONFIG_QL_ISP_A64
185 #define IOCB_SEGS 2
186 #define CONTINUATION_SEGS 5
187 #define MAX_CONTINUATION_ENTRIES 254
188 #else
189 #define IOCB_SEGS 4
190 #define CONTINUATION_SEGS 7
191 #endif /* CONFIG_QL_ISP_A64 */
192
193 struct Entry_header {
194 u_char entry_type;
195 u_char entry_cnt;
196 u_char sys_def_1;
197 u_char flags;
198 };
199
200 /* entry header type commands */
201 #ifdef CONFIG_QL_ISP_A64
202 #define ENTRY_COMMAND 9
203 #define ENTRY_CONTINUATION 0xa
204 #else
205 #define ENTRY_COMMAND 1
206 #define ENTRY_CONTINUATION 2
207 #endif /* CONFIG_QL_ISP_A64 */
208
209 #define ENTRY_STATUS 3
210 #define ENTRY_MARKER 4
211 #define ENTRY_EXTENDED_COMMAND 5
212
213 /* entry header flag definitions */
214 #define EFLAG_CONTINUATION 1
215 #define EFLAG_BUSY 2
216 #define EFLAG_BAD_HEADER 4
217 #define EFLAG_BAD_PAYLOAD 8
218
219 struct dataseg {
220 u_int d_base;
221 #ifdef CONFIG_QL_ISP_A64
222 u_int d_base_hi;
223 #endif
224 u_int d_count;
225 };
226
227 struct Command_Entry {
228 struct Entry_header hdr;
229 u_int handle;
230 u_char target_lun;
231 u_char target_id;
232 u_short cdb_length;
233 u_short control_flags;
234 u_short rsvd;
235 u_short time_out;
236 u_short segment_cnt;
237 u_char cdb[12];
238 #ifdef CONFIG_QL_ISP_A64
239 u_int rsvd1;
240 u_int rsvd2;
241 #endif
242 struct dataseg dataseg[IOCB_SEGS];
243 };
244
245 /* command entry control flag definitions */
246 #define CFLAG_NODISC 0x01
247 #define CFLAG_HEAD_TAG 0x02
248 #define CFLAG_ORDERED_TAG 0x04
249 #define CFLAG_SIMPLE_TAG 0x08
250 #define CFLAG_TAR_RTN 0x10
251 #define CFLAG_READ 0x20
252 #define CFLAG_WRITE 0x40
253
254 struct Ext_Command_Entry {
255 struct Entry_header hdr;
256 u_int handle;
257 u_char target_lun;
258 u_char target_id;
259 u_short cdb_length;
260 u_short control_flags;
261 u_short rsvd;
262 u_short time_out;
263 u_short segment_cnt;
264 u_char cdb[44];
265 };
266
267 struct Continuation_Entry {
268 struct Entry_header hdr;
269 #ifndef CONFIG_QL_ISP_A64
270 u_int reserved;
271 #endif
272 struct dataseg dataseg[CONTINUATION_SEGS];
273 };
274
275 struct Marker_Entry {
276 struct Entry_header hdr;
277 u_int reserved;
278 u_char target_lun;
279 u_char target_id;
280 u_char modifier;
281 u_char rsvd;
282 u_char rsvds[52];
283 };
284
285 /* marker entry modifier definitions */
286 #define SYNC_DEVICE 0
287 #define SYNC_TARGET 1
288 #define SYNC_ALL 2
289
290 struct Status_Entry {
291 struct Entry_header hdr;
292 u_int handle;
293 u_short scsi_status;
294 u_short completion_status;
295 u_short state_flags;
296 u_short status_flags;
297 u_short time;
298 u_short req_sense_len;
299 u_int residual;
300 u_char rsvd[8];
301 u_char req_sense_data[32];
302 };
303
304 /* status entry completion status definitions */
305 #define CS_COMPLETE 0x0000
306 #define CS_INCOMPLETE 0x0001
307 #define CS_DMA_ERROR 0x0002
308 #define CS_TRANSPORT_ERROR 0x0003
309 #define CS_RESET_OCCURRED 0x0004
310 #define CS_ABORTED 0x0005
311 #define CS_TIMEOUT 0x0006
312 #define CS_DATA_OVERRUN 0x0007
313 #define CS_COMMAND_OVERRUN 0x0008
314 #define CS_STATUS_OVERRUN 0x0009
315 #define CS_BAD_MESSAGE 0x000a
316 #define CS_NO_MESSAGE_OUT 0x000b
317 #define CS_EXT_ID_FAILED 0x000c
318 #define CS_IDE_MSG_FAILED 0x000d
319 #define CS_ABORT_MSG_FAILED 0x000e
320 #define CS_REJECT_MSG_FAILED 0x000f
321 #define CS_NOP_MSG_FAILED 0x0010
322 #define CS_PARITY_ERROR_MSG_FAILED 0x0011
323 #define CS_DEVICE_RESET_MSG_FAILED 0x0012
324 #define CS_ID_MSG_FAILED 0x0013
325 #define CS_UNEXP_BUS_FREE 0x0014
326 #define CS_DATA_UNDERRUN 0x0015
327
328 /* status entry state flag definitions */
329 #define SF_GOT_BUS 0x0100
330 #define SF_GOT_TARGET 0x0200
331 #define SF_SENT_CDB 0x0400
332 #define SF_TRANSFERRED_DATA 0x0800
333 #define SF_GOT_STATUS 0x1000
334 #define SF_GOT_SENSE 0x2000
335
336 /* status entry status flag definitions */
337 #define STF_DISCONNECT 0x0001
338 #define STF_SYNCHRONOUS 0x0002
339 #define STF_PARITY_ERROR 0x0004
340 #define STF_BUS_RESET 0x0008
341 #define STF_DEVICE_RESET 0x0010
342 #define STF_ABORTED 0x0020
343 #define STF_TIMEOUT 0x0040
344 #define STF_NEGOTIATION 0x0080
345
346 /* interface control commands */
347 #define ISP_RESET 0x0001
348 #define ISP_EN_INT 0x0002
349 #define ISP_EN_RISC 0x0004
350
351 /* host control commands */
352 #define HCCR_NOP 0x0000
353 #define HCCR_RESET 0x1000
354 #define HCCR_PAUSE 0x2000
355 #define HCCR_RELEASE 0x3000
356 #define HCCR_SINGLE_STEP 0x4000
357 #define HCCR_SET_HOST_INTR 0x5000
358 #define HCCR_CLEAR_HOST_INTR 0x6000
359 #define HCCR_CLEAR_RISC_INTR 0x7000
360 #define HCCR_BP_ENABLE 0x8000
361 #define HCCR_BIOS_DISABLE 0x9000
362 #define HCCR_TEST_MODE 0xf000
363
364 #define RISC_BUSY 0x0004
365
366 /* mailbox commands */
367 #define MBOX_NO_OP 0x0000
368 #define MBOX_LOAD_RAM 0x0001
369 #define MBOX_EXEC_FIRMWARE 0x0002
370 #define MBOX_DUMP_RAM 0x0003
371 #define MBOX_WRITE_RAM_WORD 0x0004
372 #define MBOX_READ_RAM_WORD 0x0005
373 #define MBOX_MAILBOX_REG_TEST 0x0006
374 #define MBOX_VERIFY_CHECKSUM 0x0007
375 #define MBOX_ABOUT_FIRMWARE 0x0008
376 #define MBOX_CHECK_FIRMWARE 0x000e
377 #define MBOX_INIT_REQ_QUEUE 0x0010
378 #define MBOX_INIT_RES_QUEUE 0x0011
379 #define MBOX_EXECUTE_IOCB 0x0012
380 #define MBOX_WAKE_UP 0x0013
381 #define MBOX_STOP_FIRMWARE 0x0014
382 #define MBOX_ABORT 0x0015
383 #define MBOX_ABORT_DEVICE 0x0016
384 #define MBOX_ABORT_TARGET 0x0017
385 #define MBOX_BUS_RESET 0x0018
386 #define MBOX_STOP_QUEUE 0x0019
387 #define MBOX_START_QUEUE 0x001a
388 #define MBOX_SINGLE_STEP_QUEUE 0x001b
389 #define MBOX_ABORT_QUEUE 0x001c
390 #define MBOX_GET_DEV_QUEUE_STATUS 0x001d
391 #define MBOX_GET_FIRMWARE_STATUS 0x001f
392 #define MBOX_GET_INIT_SCSI_ID 0x0020
393 #define MBOX_GET_SELECT_TIMEOUT 0x0021
394 #define MBOX_GET_RETRY_COUNT 0x0022
395 #define MBOX_GET_TAG_AGE_LIMIT 0x0023
396 #define MBOX_GET_CLOCK_RATE 0x0024
397 #define MBOX_GET_ACT_NEG_STATE 0x0025
398 #define MBOX_GET_ASYNC_DATA_SETUP_TIME 0x0026
399 #define MBOX_GET_PCI_PARAMS 0x0027
400 #define MBOX_GET_TARGET_PARAMS 0x0028
401 #define MBOX_GET_DEV_QUEUE_PARAMS 0x0029
402 #define MBOX_SET_INIT_SCSI_ID 0x0030
403 #define MBOX_SET_SELECT_TIMEOUT 0x0031
404 #define MBOX_SET_RETRY_COUNT 0x0032
405 #define MBOX_SET_TAG_AGE_LIMIT 0x0033
406 #define MBOX_SET_CLOCK_RATE 0x0034
407 #define MBOX_SET_ACTIVE_NEG_STATE 0x0035
408 #define MBOX_SET_ASYNC_DATA_SETUP_TIME 0x0036
409 #define MBOX_SET_PCI_CONTROL_PARAMS 0x0037
410 #define MBOX_SET_TARGET_PARAMS 0x0038
411 #define MBOX_SET_DEV_QUEUE_PARAMS 0x0039
412 #define MBOX_RETURN_BIOS_BLOCK_ADDR 0x0040
413 #define MBOX_WRITE_FOUR_RAM_WORDS 0x0041
414 #define MBOX_EXEC_BIOS_IOCB 0x0042
415
416 #ifdef CONFIG_QL_ISP_A64
417 #define MBOX_CMD_INIT_REQUEST_QUEUE_64 0x0052
418 #define MBOX_CMD_INIT_RESPONSE_QUEUE_64 0x0053
419 #endif /* CONFIG_QL_ISP_A64 */
420
421 #include "qlogicisp_asm.c"
422
423 #define PACKB(a, b) (((a)<<4)|(b))
424
425 static const u_char mbox_param[] = {
426 PACKB(1, 1), /* MBOX_NO_OP */
427 PACKB(5, 5), /* MBOX_LOAD_RAM */
428 PACKB(2, 0), /* MBOX_EXEC_FIRMWARE */
429 PACKB(5, 5), /* MBOX_DUMP_RAM */
430 PACKB(3, 3), /* MBOX_WRITE_RAM_WORD */
431 PACKB(2, 3), /* MBOX_READ_RAM_WORD */
432 PACKB(6, 6), /* MBOX_MAILBOX_REG_TEST */
433 PACKB(2, 3), /* MBOX_VERIFY_CHECKSUM */
434 PACKB(1, 3), /* MBOX_ABOUT_FIRMWARE */
435 PACKB(0, 0), /* 0x0009 */
436 PACKB(0, 0), /* 0x000a */
437 PACKB(0, 0), /* 0x000b */
438 PACKB(0, 0), /* 0x000c */
439 PACKB(0, 0), /* 0x000d */
440 PACKB(1, 2), /* MBOX_CHECK_FIRMWARE */
441 PACKB(0, 0), /* 0x000f */
442 PACKB(5, 5), /* MBOX_INIT_REQ_QUEUE */
443 PACKB(6, 6), /* MBOX_INIT_RES_QUEUE */
444 PACKB(4, 4), /* MBOX_EXECUTE_IOCB */
445 PACKB(2, 2), /* MBOX_WAKE_UP */
446 PACKB(1, 6), /* MBOX_STOP_FIRMWARE */
447 PACKB(4, 4), /* MBOX_ABORT */
448 PACKB(2, 2), /* MBOX_ABORT_DEVICE */
449 PACKB(3, 3), /* MBOX_ABORT_TARGET */
450 PACKB(2, 2), /* MBOX_BUS_RESET */
451 PACKB(2, 3), /* MBOX_STOP_QUEUE */
452 PACKB(2, 3), /* MBOX_START_QUEUE */
453 PACKB(2, 3), /* MBOX_SINGLE_STEP_QUEUE */
454 PACKB(2, 3), /* MBOX_ABORT_QUEUE */
455 PACKB(2, 4), /* MBOX_GET_DEV_QUEUE_STATUS */
456 PACKB(0, 0), /* 0x001e */
457 PACKB(1, 3), /* MBOX_GET_FIRMWARE_STATUS */
458 PACKB(1, 2), /* MBOX_GET_INIT_SCSI_ID */
459 PACKB(1, 2), /* MBOX_GET_SELECT_TIMEOUT */
460 PACKB(1, 3), /* MBOX_GET_RETRY_COUNT */
461 PACKB(1, 2), /* MBOX_GET_TAG_AGE_LIMIT */
462 PACKB(1, 2), /* MBOX_GET_CLOCK_RATE */
463 PACKB(1, 2), /* MBOX_GET_ACT_NEG_STATE */
464 PACKB(1, 2), /* MBOX_GET_ASYNC_DATA_SETUP_TIME */
465 PACKB(1, 3), /* MBOX_GET_PCI_PARAMS */
466 PACKB(2, 4), /* MBOX_GET_TARGET_PARAMS */
467 PACKB(2, 4), /* MBOX_GET_DEV_QUEUE_PARAMS */
468 PACKB(0, 0), /* 0x002a */
469 PACKB(0, 0), /* 0x002b */
470 PACKB(0, 0), /* 0x002c */
471 PACKB(0, 0), /* 0x002d */
472 PACKB(0, 0), /* 0x002e */
473 PACKB(0, 0), /* 0x002f */
474 PACKB(2, 2), /* MBOX_SET_INIT_SCSI_ID */
475 PACKB(2, 2), /* MBOX_SET_SELECT_TIMEOUT */
476 PACKB(3, 3), /* MBOX_SET_RETRY_COUNT */
477 PACKB(2, 2), /* MBOX_SET_TAG_AGE_LIMIT */
478 PACKB(2, 2), /* MBOX_SET_CLOCK_RATE */
479 PACKB(2, 2), /* MBOX_SET_ACTIVE_NEG_STATE */
480 PACKB(2, 2), /* MBOX_SET_ASYNC_DATA_SETUP_TIME */
481 PACKB(3, 3), /* MBOX_SET_PCI_CONTROL_PARAMS */
482 PACKB(4, 4), /* MBOX_SET_TARGET_PARAMS */
483 PACKB(4, 4), /* MBOX_SET_DEV_QUEUE_PARAMS */
484 PACKB(0, 0), /* 0x003a */
485 PACKB(0, 0), /* 0x003b */
486 PACKB(0, 0), /* 0x003c */
487 PACKB(0, 0), /* 0x003d */
488 PACKB(0, 0), /* 0x003e */
489 PACKB(0, 0), /* 0x003f */
490 PACKB(1, 2), /* MBOX_RETURN_BIOS_BLOCK_ADDR */
491 PACKB(6, 1), /* MBOX_WRITE_FOUR_RAM_WORDS */
492 PACKB(2, 3) /* MBOX_EXEC_BIOS_IOCB */
493 #ifdef CONFIG_QL_ISP_A64
494 ,PACKB(0, 0), /* 0x0043 */
495 PACKB(0, 0), /* 0x0044 */
496 PACKB(0, 0), /* 0x0045 */
497 PACKB(0, 0), /* 0x0046 */
498 PACKB(0, 0), /* 0x0047 */
499 PACKB(0, 0), /* 0x0048 */
500 PACKB(0, 0), /* 0x0049 */
501 PACKB(0, 0), /* 0x004a */
502 PACKB(0, 0), /* 0x004b */
503 PACKB(0, 0), /* 0x004c */
504 PACKB(0, 0), /* 0x004d */
505 PACKB(0, 0), /* 0x004e */
506 PACKB(0, 0), /* 0x004f */
507 PACKB(0, 0), /* 0x0050 */
508 PACKB(0, 0), /* 0x0051 */
509 PACKB(8, 8), /* MBOX_CMD_INIT_REQUEST_QUEUE_64 (0x0052) */
510 PACKB(8, 8) /* MBOX_CMD_INIT_RESPONSE_QUEUE_64 (0x0053) */
511 #endif /* CONFIG_QL_ISP_A64 */
512 };
513
514 #define MAX_MBOX_COMMAND (sizeof(mbox_param)/sizeof(u_short))
515
516 struct host_param {
517 u_short fifo_threshold;
518 u_short host_adapter_enable;
519 u_short initiator_scsi_id;
520 u_short bus_reset_delay;
521 u_short retry_count;
522 u_short retry_delay;
523 u_short async_data_setup_time;
524 u_short req_ack_active_negation;
525 u_short data_line_active_negation;
526 u_short data_dma_burst_enable;
527 u_short command_dma_burst_enable;
528 u_short tag_aging;
529 u_short selection_timeout;
530 u_short max_queue_depth;
531 };
532
533 /*
534 * Device Flags:
535 *
536 * Bit Name
537 * ---------
538 * 7 Disconnect Privilege
539 * 6 Parity Checking
540 * 5 Wide Data Transfers
541 * 4 Synchronous Data Transfers
542 * 3 Tagged Queuing
543 * 2 Automatic Request Sense
544 * 1 Stop Queue on Check Condition
545 * 0 Renegotiate on Error
546 */
547
548 struct dev_param {
549 u_short device_flags;
550 u_short execution_throttle;
551 u_short synchronous_period;
552 u_short synchronous_offset;
553 u_short device_enable;
554 u_short reserved; /* pad */
555 };
556
557 /*
558 * The result queue can be quite a bit smaller since continuation entries
559 * do not show up there:
560 */
561 #define RES_QUEUE_LEN ((QLOGICISP_REQ_QUEUE_LEN + 1) / 8 - 1)
562 #define QUEUE_ENTRY_LEN 64
563 #define QSIZE(entries) (((entries) + 1) * QUEUE_ENTRY_LEN)
564
565 struct isp_queue_entry {
566 char __opaque[QUEUE_ENTRY_LEN];
567 };
568
569 struct isp1020_hostdata {
570 u_long memaddr;
571 u_char revision;
572 struct host_param host_param;
573 struct dev_param dev_param[MAX_TARGETS];
574 struct pci_dev *pci_dev;
575
576 struct isp_queue_entry *res_cpu; /* CPU-side address of response queue. */
577 struct isp_queue_entry *req_cpu; /* CPU-size address of request queue. */
578
579 /* result and request queues (shared with isp1020): */
580 u_int req_in_ptr; /* index of next request slot */
581 u_int res_out_ptr; /* index of next result slot */
582
583 /* this is here so the queues are nicely aligned */
584 long send_marker; /* do we need to send a marker? */
585
586 /* The cmd->handle has a fixed size, and is only 32-bits. We
587 * need to take care to handle 64-bit systems correctly thus what
588 * we actually place in cmd->handle is an index to the following
589 * table. Kudos to Matt Jacob for the technique. -DaveM
590 */
591 Scsi_Cmnd *cmd_slots[QLOGICISP_REQ_QUEUE_LEN + 1];
592
593 dma_addr_t res_dma; /* PCI side view of response queue */
594 dma_addr_t req_dma; /* PCI side view of request queue */
595 };
596
597 /* queue length's _must_ be power of two: */
598 #define QUEUE_DEPTH(in, out, ql) ((in - out) & (ql))
599 #define REQ_QUEUE_DEPTH(in, out) QUEUE_DEPTH(in, out, \
600 QLOGICISP_REQ_QUEUE_LEN)
601 #define RES_QUEUE_DEPTH(in, out) QUEUE_DEPTH(in, out, RES_QUEUE_LEN)
602
603 static void isp1020_enable_irqs(struct Scsi_Host *);
604 static void isp1020_disable_irqs(struct Scsi_Host *);
605 static int isp1020_init(struct Scsi_Host *);
606 static int isp1020_reset_hardware(struct Scsi_Host *);
607 static int isp1020_set_defaults(struct Scsi_Host *);
608 static int isp1020_load_parameters(struct Scsi_Host *);
609 static int isp1020_mbox_command(struct Scsi_Host *, u_short []);
610 static int isp1020_return_status(struct Status_Entry *);
611 static void isp1020_intr_handler(int, void *, struct pt_regs *);
612 static void do_isp1020_intr_handler(int, void *, struct pt_regs *);
613
614 #if USE_NVRAM_DEFAULTS
615 static int isp1020_get_defaults(struct Scsi_Host *);
616 static int isp1020_verify_nvram(struct Scsi_Host *);
617 static u_short isp1020_read_nvram_word(struct Scsi_Host *, u_short);
618 #endif
619
620 #if DEBUG_ISP1020
621 static void isp1020_print_scsi_cmd(Scsi_Cmnd *);
622 #endif
623 #if DEBUG_ISP1020_INTR
624 static void isp1020_print_status_entry(struct Status_Entry *);
625 #endif
626
627 /* memaddr should be used to determine if memmapped port i/o is being used
628 * non-null memaddr == mmap'd
629 * JV 7-Jan-2000
630 */
isp_inw(struct Scsi_Host * host,long offset)631 static inline u_short isp_inw(struct Scsi_Host *host, long offset)
632 {
633 struct isp1020_hostdata *h = (struct isp1020_hostdata *)host->hostdata;
634 if (h->memaddr)
635 return readw(h->memaddr + offset);
636 else
637 return inw(host->io_port + offset);
638 }
639
isp_outw(u_short val,struct Scsi_Host * host,long offset)640 static inline void isp_outw(u_short val, struct Scsi_Host *host, long offset)
641 {
642 struct isp1020_hostdata *h = (struct isp1020_hostdata *)host->hostdata;
643 if (h->memaddr)
644 writew(val, h->memaddr + offset);
645 else
646 outw(val, host->io_port + offset);
647 }
648
isp1020_enable_irqs(struct Scsi_Host * host)649 static inline void isp1020_enable_irqs(struct Scsi_Host *host)
650 {
651 isp_outw(ISP_EN_INT|ISP_EN_RISC, host, PCI_INTF_CTL);
652 }
653
654
isp1020_disable_irqs(struct Scsi_Host * host)655 static inline void isp1020_disable_irqs(struct Scsi_Host *host)
656 {
657 isp_outw(0x0, host, PCI_INTF_CTL);
658 }
659
660
isp1020_detect(Scsi_Host_Template * tmpt)661 int isp1020_detect(Scsi_Host_Template *tmpt)
662 {
663 int hosts = 0;
664 struct Scsi_Host *host;
665 struct isp1020_hostdata *hostdata;
666 struct pci_dev *pdev = NULL;
667
668 ENTER("isp1020_detect");
669
670 tmpt->proc_name = "isp1020";
671
672 if (pci_present() == 0) {
673 printk("qlogicisp : PCI not present\n");
674 return 0;
675 }
676
677 while ((pdev = pci_find_device(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_QLOGIC_ISP1020, pdev)))
678 {
679 if (pci_enable_device(pdev))
680 continue;
681
682 host = scsi_register(tmpt, sizeof(struct isp1020_hostdata));
683 if (!host)
684 continue;
685
686 hostdata = (struct isp1020_hostdata *) host->hostdata;
687
688 memset(hostdata, 0, sizeof(struct isp1020_hostdata));
689
690 hostdata->pci_dev = pdev;
691 scsi_set_pci_device(host, pdev);
692
693 if (isp1020_init(host))
694 goto fail_and_unregister;
695
696 if (isp1020_reset_hardware(host)
697 #if USE_NVRAM_DEFAULTS
698 || isp1020_get_defaults(host)
699 #else
700 || isp1020_set_defaults(host)
701 #endif /* USE_NVRAM_DEFAULTS */
702 || isp1020_load_parameters(host)) {
703 goto fail_uninit;
704 }
705
706 host->this_id = hostdata->host_param.initiator_scsi_id;
707 host->max_sectors = 64;
708
709 if (request_irq(host->irq, do_isp1020_intr_handler, SA_INTERRUPT | SA_SHIRQ,
710 "qlogicisp", host))
711 {
712 printk("qlogicisp : interrupt %d already in use\n",
713 host->irq);
714 goto fail_uninit;
715 }
716
717 isp_outw(0x0, host, PCI_SEMAPHORE);
718 isp_outw(HCCR_CLEAR_RISC_INTR, host, HOST_HCCR);
719 isp1020_enable_irqs(host);
720
721 hosts++;
722 continue;
723
724 fail_uninit:
725 if (hostdata->memaddr) iounmap((void *)hostdata->memaddr);
726 if (host->io_port) release_region(host->io_port, 0xff);
727 fail_and_unregister:
728 if (hostdata->res_cpu)
729 pci_free_consistent(hostdata->pci_dev,
730 QSIZE(RES_QUEUE_LEN),
731 hostdata->res_cpu,
732 hostdata->res_dma);
733 if (hostdata->req_cpu)
734 pci_free_consistent(hostdata->pci_dev,
735 QSIZE(QLOGICISP_REQ_QUEUE_LEN),
736 hostdata->req_cpu,
737 hostdata->req_dma);
738 scsi_unregister(host);
739 }
740
741 LEAVE("isp1020_detect");
742
743 return hosts;
744 }
745
746
isp1020_release(struct Scsi_Host * host)747 int isp1020_release(struct Scsi_Host *host)
748 {
749 struct isp1020_hostdata *hostdata;
750
751 ENTER("isp1020_release");
752
753 hostdata = (struct isp1020_hostdata *) host->hostdata;
754
755 isp_outw(0x0, host, PCI_INTF_CTL);
756 free_irq(host->irq, host);
757
758 if (hostdata->memaddr) iounmap((void *)hostdata->memaddr);
759
760 if (host->io_port) release_region(host->io_port, 0xff);
761
762 LEAVE("isp1020_release");
763
764 return 0;
765 }
766
767
isp1020_info(struct Scsi_Host * host)768 const char *isp1020_info(struct Scsi_Host *host)
769 {
770 static char buf[80];
771 struct isp1020_hostdata *hostdata;
772
773 ENTER("isp1020_info");
774
775 hostdata = (struct isp1020_hostdata *) host->hostdata;
776 sprintf(buf,
777 "QLogic ISP1020 SCSI on PCI bus %02x device %02x irq %d %s base 0x%lx",
778 hostdata->pci_dev->bus->number, hostdata->pci_dev->devfn, host->irq,
779 (hostdata->memaddr ? "MEM" : "I/O"),
780 (hostdata->memaddr ? hostdata->memaddr : host->io_port));
781
782 LEAVE("isp1020_info");
783
784 return buf;
785 }
786
787
788 /*
789 * The middle SCSI layer ensures that queuecommand never gets invoked
790 * concurrently with itself or the interrupt handler (though the
791 * interrupt handler may call this routine as part of
792 * request-completion handling).
793 */
isp1020_queuecommand(Scsi_Cmnd * Cmnd,void (* done)(Scsi_Cmnd *))794 int isp1020_queuecommand(Scsi_Cmnd *Cmnd, void (*done)(Scsi_Cmnd *))
795 {
796 int i, n, num_free;
797 u_int in_ptr, out_ptr;
798 struct dataseg * ds;
799 struct scatterlist *sg;
800 struct Command_Entry *cmd;
801 struct Continuation_Entry *cont;
802 struct Scsi_Host *host;
803 struct isp1020_hostdata *hostdata;
804 dma_addr_t dma_addr;
805
806 ENTER("isp1020_queuecommand");
807
808 host = Cmnd->host;
809 hostdata = (struct isp1020_hostdata *) host->hostdata;
810 Cmnd->scsi_done = done;
811
812 DEBUG(isp1020_print_scsi_cmd(Cmnd));
813
814 out_ptr = isp_inw(host, + MBOX4);
815 in_ptr = hostdata->req_in_ptr;
816
817 DEBUG(printk("qlogicisp : request queue depth %d\n",
818 REQ_QUEUE_DEPTH(in_ptr, out_ptr)));
819
820 cmd = (struct Command_Entry *) &hostdata->req_cpu[in_ptr];
821 in_ptr = (in_ptr + 1) & QLOGICISP_REQ_QUEUE_LEN;
822 if (in_ptr == out_ptr) {
823 printk("qlogicisp : request queue overflow\n");
824 return 1;
825 }
826
827 if (hostdata->send_marker) {
828 struct Marker_Entry *marker;
829
830 TRACE("queue marker", in_ptr, 0);
831
832 DEBUG(printk("qlogicisp : adding marker entry\n"));
833 marker = (struct Marker_Entry *) cmd;
834 memset(marker, 0, sizeof(struct Marker_Entry));
835
836 marker->hdr.entry_type = ENTRY_MARKER;
837 marker->hdr.entry_cnt = 1;
838 marker->modifier = SYNC_ALL;
839
840 hostdata->send_marker = 0;
841
842 if (((in_ptr + 1) & QLOGICISP_REQ_QUEUE_LEN) == out_ptr) {
843 isp_outw(in_ptr, host, MBOX4);
844 hostdata->req_in_ptr = in_ptr;
845 printk("qlogicisp : request queue overflow\n");
846 return 1;
847 }
848 cmd = (struct Command_Entry *) &hostdata->req_cpu[in_ptr];
849 in_ptr = (in_ptr + 1) & QLOGICISP_REQ_QUEUE_LEN;
850 }
851
852 TRACE("queue command", in_ptr, Cmnd);
853
854 memset(cmd, 0, sizeof(struct Command_Entry));
855
856 cmd->hdr.entry_type = ENTRY_COMMAND;
857 cmd->hdr.entry_cnt = 1;
858
859 cmd->target_lun = Cmnd->lun;
860 cmd->target_id = Cmnd->target;
861 cmd->cdb_length = cpu_to_le16(Cmnd->cmd_len);
862 cmd->control_flags = cpu_to_le16(CFLAG_READ | CFLAG_WRITE);
863 cmd->time_out = cpu_to_le16(30);
864
865 memcpy(cmd->cdb, Cmnd->cmnd, Cmnd->cmd_len);
866
867 if (Cmnd->use_sg) {
868 int sg_count;
869
870 sg = (struct scatterlist *) Cmnd->request_buffer;
871 ds = cmd->dataseg;
872
873 sg_count = pci_map_sg(hostdata->pci_dev, sg, Cmnd->use_sg,
874 scsi_to_pci_dma_dir(Cmnd->sc_data_direction));
875
876 cmd->segment_cnt = cpu_to_le16(sg_count);
877
878 /* fill in first four sg entries: */
879 n = sg_count;
880 if (n > IOCB_SEGS)
881 n = IOCB_SEGS;
882 for (i = 0; i < n; i++) {
883 dma_addr = sg_dma_address(sg);
884 ds[i].d_base = cpu_to_le32((u32) dma_addr);
885 #ifdef CONFIG_QL_ISP_A64
886 ds[i].d_base_hi = cpu_to_le32((u32) (dma_addr>>32));
887 #endif /* CONFIG_QL_ISP_A64 */
888 ds[i].d_count = cpu_to_le32(sg_dma_len(sg));
889 ++sg;
890 }
891 sg_count -= IOCB_SEGS;
892
893 while (sg_count > 0) {
894 ++cmd->hdr.entry_cnt;
895 cont = (struct Continuation_Entry *)
896 &hostdata->req_cpu[in_ptr];
897 in_ptr = (in_ptr + 1) & QLOGICISP_REQ_QUEUE_LEN;
898 if (in_ptr == out_ptr) {
899 printk("isp1020: unexpected request queue "
900 "overflow\n");
901 return 1;
902 }
903 TRACE("queue continuation", in_ptr, 0);
904 cont->hdr.entry_type = ENTRY_CONTINUATION;
905 cont->hdr.entry_cnt = 0;
906 cont->hdr.sys_def_1 = 0;
907 cont->hdr.flags = 0;
908 #ifndef CONFIG_QL_ISP_A64
909 cont->reserved = 0;
910 #endif
911 ds = cont->dataseg;
912 n = sg_count;
913 if (n > CONTINUATION_SEGS)
914 n = CONTINUATION_SEGS;
915 for (i = 0; i < n; ++i) {
916 dma_addr = sg_dma_address(sg);
917 ds[i].d_base = cpu_to_le32((u32) dma_addr);
918 #ifdef CONFIG_QL_ISP_A64
919 ds[i].d_base_hi = cpu_to_le32((u32)(dma_addr>>32));
920 #endif /* CONFIG_QL_ISP_A64 */
921 ds[i].d_count = cpu_to_le32(sg_dma_len(sg));
922 ++sg;
923 }
924 sg_count -= n;
925 }
926 } else if (Cmnd->request_bufflen) {
927 /*Cmnd->SCp.ptr = (char *)(unsigned long)*/
928 dma_addr = pci_map_single(hostdata->pci_dev,
929 Cmnd->request_buffer,
930 Cmnd->request_bufflen,
931 scsi_to_pci_dma_dir(Cmnd->sc_data_direction));
932 Cmnd->SCp.ptr = (char *)(unsigned long) dma_addr;
933
934 cmd->dataseg[0].d_base =
935 cpu_to_le32((u32) dma_addr);
936 #ifdef CONFIG_QL_ISP_A64
937 cmd->dataseg[0].d_base_hi =
938 cpu_to_le32((u32) (dma_addr>>32));
939 #endif /* CONFIG_QL_ISP_A64 */
940 cmd->dataseg[0].d_count =
941 cpu_to_le32((u32)Cmnd->request_bufflen);
942 cmd->segment_cnt = cpu_to_le16(1);
943 } else {
944 cmd->dataseg[0].d_base = 0;
945 #ifdef CONFIG_QL_ISP_A64
946 cmd->dataseg[0].d_base_hi = 0;
947 #endif /* CONFIG_QL_ISP_A64 */
948 cmd->dataseg[0].d_count = 0;
949 cmd->segment_cnt = cpu_to_le16(1); /* Shouldn't this be 0? */
950 }
951
952 /* Committed, record Scsi_Cmd so we can find it later. */
953 cmd->handle = in_ptr;
954 hostdata->cmd_slots[in_ptr] = Cmnd;
955
956 isp_outw(in_ptr, host, MBOX4);
957 hostdata->req_in_ptr = in_ptr;
958
959 num_free = QLOGICISP_REQ_QUEUE_LEN - REQ_QUEUE_DEPTH(in_ptr, out_ptr);
960 host->can_queue = host->host_busy + num_free;
961 host->sg_tablesize = QLOGICISP_MAX_SG(num_free);
962
963 LEAVE("isp1020_queuecommand");
964
965 return 0;
966 }
967
968
969 #define ASYNC_EVENT_INTERRUPT 0x01
970
do_isp1020_intr_handler(int irq,void * dev_id,struct pt_regs * regs)971 void do_isp1020_intr_handler(int irq, void *dev_id, struct pt_regs *regs)
972 {
973 unsigned long flags;
974
975 spin_lock_irqsave(&io_request_lock, flags);
976 isp1020_intr_handler(irq, dev_id, regs);
977 spin_unlock_irqrestore(&io_request_lock, flags);
978 }
979
isp1020_intr_handler(int irq,void * dev_id,struct pt_regs * regs)980 void isp1020_intr_handler(int irq, void *dev_id, struct pt_regs *regs)
981 {
982 Scsi_Cmnd *Cmnd;
983 struct Status_Entry *sts;
984 struct Scsi_Host *host = dev_id;
985 struct isp1020_hostdata *hostdata;
986 u_int in_ptr, out_ptr;
987 u_short status;
988
989 ENTER_INTR("isp1020_intr_handler");
990
991 hostdata = (struct isp1020_hostdata *) host->hostdata;
992
993 DEBUG_INTR(printk("qlogicisp : interrupt on line %d\n", irq));
994
995 if (!(isp_inw(host, PCI_INTF_STS) & 0x04)) {
996 /* spurious interrupts can happen legally */
997 DEBUG_INTR(printk("qlogicisp: got spurious interrupt\n"));
998 return;
999 }
1000 in_ptr = isp_inw(host, MBOX5);
1001 isp_outw(HCCR_CLEAR_RISC_INTR, host, HOST_HCCR);
1002
1003 if ((isp_inw(host, PCI_SEMAPHORE) & ASYNC_EVENT_INTERRUPT)) {
1004 status = isp_inw(host, MBOX0);
1005
1006 DEBUG_INTR(printk("qlogicisp : mbox completion status: %x\n",
1007 status));
1008
1009 switch (status) {
1010 case ASYNC_SCSI_BUS_RESET:
1011 case EXECUTION_TIMEOUT_RESET:
1012 hostdata->send_marker = 1;
1013 break;
1014 case INVALID_COMMAND:
1015 case HOST_INTERFACE_ERROR:
1016 case COMMAND_ERROR:
1017 case COMMAND_PARAM_ERROR:
1018 printk("qlogicisp : bad mailbox return status\n");
1019 break;
1020 }
1021 isp_outw(0x0, host, PCI_SEMAPHORE);
1022 }
1023 out_ptr = hostdata->res_out_ptr;
1024
1025 DEBUG_INTR(printk("qlogicisp : response queue update\n"));
1026 DEBUG_INTR(printk("qlogicisp : response queue depth %d\n",
1027 QUEUE_DEPTH(in_ptr, out_ptr, RES_QUEUE_LEN)));
1028
1029 while (out_ptr != in_ptr) {
1030 u_int cmd_slot;
1031
1032 sts = (struct Status_Entry *) &hostdata->res_cpu[out_ptr];
1033 out_ptr = (out_ptr + 1) & RES_QUEUE_LEN;
1034
1035 cmd_slot = sts->handle;
1036 Cmnd = hostdata->cmd_slots[cmd_slot];
1037 hostdata->cmd_slots[cmd_slot] = NULL;
1038
1039 TRACE("done", out_ptr, Cmnd);
1040
1041 if (le16_to_cpu(sts->completion_status) == CS_RESET_OCCURRED
1042 || le16_to_cpu(sts->completion_status) == CS_ABORTED
1043 || (le16_to_cpu(sts->status_flags) & STF_BUS_RESET))
1044 hostdata->send_marker = 1;
1045
1046 if (le16_to_cpu(sts->state_flags) & SF_GOT_SENSE)
1047 memcpy(Cmnd->sense_buffer, sts->req_sense_data,
1048 sizeof(Cmnd->sense_buffer));
1049
1050 DEBUG_INTR(isp1020_print_status_entry(sts));
1051
1052 if (sts->hdr.entry_type == ENTRY_STATUS)
1053 Cmnd->result = isp1020_return_status(sts);
1054 else
1055 Cmnd->result = DID_ERROR << 16;
1056
1057 if (Cmnd->use_sg)
1058 pci_unmap_sg(hostdata->pci_dev,
1059 (struct scatterlist *)Cmnd->buffer,
1060 Cmnd->use_sg,
1061 scsi_to_pci_dma_dir(Cmnd->sc_data_direction));
1062 else if (Cmnd->request_bufflen)
1063 pci_unmap_single(hostdata->pci_dev,
1064 #ifdef CONFIG_QL_ISP_A64
1065 (dma_addr_t)((long)Cmnd->SCp.ptr),
1066 #else
1067 (u32)((long)Cmnd->SCp.ptr),
1068 #endif
1069 Cmnd->request_bufflen,
1070 scsi_to_pci_dma_dir(Cmnd->sc_data_direction));
1071
1072 isp_outw(out_ptr, host, MBOX5);
1073 (*Cmnd->scsi_done)(Cmnd);
1074 }
1075 hostdata->res_out_ptr = out_ptr;
1076
1077 LEAVE_INTR("isp1020_intr_handler");
1078 }
1079
1080
isp1020_return_status(struct Status_Entry * sts)1081 static int isp1020_return_status(struct Status_Entry *sts)
1082 {
1083 int host_status = DID_ERROR;
1084 #if DEBUG_ISP1020_INTR
1085 static char *reason[] = {
1086 "DID_OK",
1087 "DID_NO_CONNECT",
1088 "DID_BUS_BUSY",
1089 "DID_TIME_OUT",
1090 "DID_BAD_TARGET",
1091 "DID_ABORT",
1092 "DID_PARITY",
1093 "DID_ERROR",
1094 "DID_RESET",
1095 "DID_BAD_INTR"
1096 };
1097 #endif /* DEBUG_ISP1020_INTR */
1098
1099 ENTER("isp1020_return_status");
1100
1101 DEBUG(printk("qlogicisp : completion status = 0x%04x\n",
1102 le16_to_cpu(sts->completion_status)));
1103
1104 switch(le16_to_cpu(sts->completion_status)) {
1105 case CS_COMPLETE:
1106 host_status = DID_OK;
1107 break;
1108 case CS_INCOMPLETE:
1109 if (!(le16_to_cpu(sts->state_flags) & SF_GOT_BUS))
1110 host_status = DID_NO_CONNECT;
1111 else if (!(le16_to_cpu(sts->state_flags) & SF_GOT_TARGET))
1112 host_status = DID_BAD_TARGET;
1113 else if (!(le16_to_cpu(sts->state_flags) & SF_SENT_CDB))
1114 host_status = DID_ERROR;
1115 else if (!(le16_to_cpu(sts->state_flags) & SF_TRANSFERRED_DATA))
1116 host_status = DID_ERROR;
1117 else if (!(le16_to_cpu(sts->state_flags) & SF_GOT_STATUS))
1118 host_status = DID_ERROR;
1119 else if (!(le16_to_cpu(sts->state_flags) & SF_GOT_SENSE))
1120 host_status = DID_ERROR;
1121 break;
1122 case CS_DMA_ERROR:
1123 case CS_TRANSPORT_ERROR:
1124 host_status = DID_ERROR;
1125 break;
1126 case CS_RESET_OCCURRED:
1127 host_status = DID_RESET;
1128 break;
1129 case CS_ABORTED:
1130 host_status = DID_ABORT;
1131 break;
1132 case CS_TIMEOUT:
1133 host_status = DID_TIME_OUT;
1134 break;
1135 case CS_DATA_OVERRUN:
1136 case CS_COMMAND_OVERRUN:
1137 case CS_STATUS_OVERRUN:
1138 case CS_BAD_MESSAGE:
1139 case CS_NO_MESSAGE_OUT:
1140 case CS_EXT_ID_FAILED:
1141 case CS_IDE_MSG_FAILED:
1142 case CS_ABORT_MSG_FAILED:
1143 case CS_NOP_MSG_FAILED:
1144 case CS_PARITY_ERROR_MSG_FAILED:
1145 case CS_DEVICE_RESET_MSG_FAILED:
1146 case CS_ID_MSG_FAILED:
1147 case CS_UNEXP_BUS_FREE:
1148 host_status = DID_ERROR;
1149 break;
1150 case CS_DATA_UNDERRUN:
1151 host_status = DID_OK;
1152 break;
1153 default:
1154 printk("qlogicisp : unknown completion status 0x%04x\n",
1155 le16_to_cpu(sts->completion_status));
1156 host_status = DID_ERROR;
1157 break;
1158 }
1159
1160 DEBUG_INTR(printk("qlogicisp : host status (%s) scsi status %x\n",
1161 reason[host_status], le16_to_cpu(sts->scsi_status)));
1162
1163 LEAVE("isp1020_return_status");
1164
1165 return (le16_to_cpu(sts->scsi_status) & STATUS_MASK) | (host_status << 16);
1166 }
1167
1168
isp1020_abort(Scsi_Cmnd * Cmnd)1169 int isp1020_abort(Scsi_Cmnd *Cmnd)
1170 {
1171 u_short param[6];
1172 struct Scsi_Host *host;
1173 struct isp1020_hostdata *hostdata;
1174 int return_status = SCSI_ABORT_SUCCESS;
1175 u_int cmd_cookie;
1176 int i;
1177
1178 ENTER("isp1020_abort");
1179
1180 host = Cmnd->host;
1181 hostdata = (struct isp1020_hostdata *) host->hostdata;
1182
1183 for (i = 0; i < QLOGICISP_REQ_QUEUE_LEN + 1; i++)
1184 if (hostdata->cmd_slots[i] == Cmnd)
1185 break;
1186 cmd_cookie = i;
1187
1188 isp1020_disable_irqs(host);
1189
1190 param[0] = MBOX_ABORT;
1191 param[1] = (((u_short) Cmnd->target) << 8) | Cmnd->lun;
1192 param[2] = cmd_cookie >> 16;
1193 param[3] = cmd_cookie & 0xffff;
1194
1195 isp1020_mbox_command(host, param);
1196
1197 if (param[0] != MBOX_COMMAND_COMPLETE) {
1198 printk("qlogicisp : scsi abort failure: %x\n", param[0]);
1199 return_status = SCSI_ABORT_ERROR;
1200 }
1201
1202 isp1020_enable_irqs(host);
1203
1204 LEAVE("isp1020_abort");
1205
1206 return return_status;
1207 }
1208
1209
isp1020_reset(Scsi_Cmnd * Cmnd,unsigned int reset_flags)1210 int isp1020_reset(Scsi_Cmnd *Cmnd, unsigned int reset_flags)
1211 {
1212 u_short param[6];
1213 struct Scsi_Host *host;
1214 struct isp1020_hostdata *hostdata;
1215 int return_status = SCSI_RESET_SUCCESS;
1216
1217 ENTER("isp1020_reset");
1218
1219 host = Cmnd->host;
1220 hostdata = (struct isp1020_hostdata *) host->hostdata;
1221
1222 param[0] = MBOX_BUS_RESET;
1223 param[1] = hostdata->host_param.bus_reset_delay;
1224
1225 isp1020_disable_irqs(host);
1226
1227 isp1020_mbox_command(host, param);
1228
1229 if (param[0] != MBOX_COMMAND_COMPLETE) {
1230 printk("qlogicisp : scsi bus reset failure: %x\n", param[0]);
1231 return_status = SCSI_RESET_ERROR;
1232 }
1233
1234 isp1020_enable_irqs(host);
1235
1236 LEAVE("isp1020_reset");
1237
1238 return return_status;;
1239 }
1240
1241
isp1020_biosparam(Disk * disk,kdev_t n,int ip[])1242 int isp1020_biosparam(Disk *disk, kdev_t n, int ip[])
1243 {
1244 int size = disk->capacity;
1245
1246 ENTER("isp1020_biosparam");
1247
1248 ip[0] = 64;
1249 ip[1] = 32;
1250 ip[2] = size >> 11;
1251 if (ip[2] > 1024) {
1252 ip[0] = 255;
1253 ip[1] = 63;
1254 ip[2] = size / (ip[0] * ip[1]);
1255 #if 0
1256 if (ip[2] > 1023)
1257 ip[2] = 1023;
1258 #endif
1259 }
1260
1261 LEAVE("isp1020_biosparam");
1262
1263 return 0;
1264 }
1265
1266
isp1020_reset_hardware(struct Scsi_Host * host)1267 static int isp1020_reset_hardware(struct Scsi_Host *host)
1268 {
1269 u_short param[6];
1270 int loop_count;
1271
1272 ENTER("isp1020_reset_hardware");
1273
1274 isp_outw(ISP_RESET, host, PCI_INTF_CTL);
1275 udelay(100);
1276 isp_outw(HCCR_RESET, host, HOST_HCCR);
1277 udelay(100);
1278 isp_outw(HCCR_RELEASE, host, HOST_HCCR);
1279 isp_outw(HCCR_BIOS_DISABLE, host, HOST_HCCR);
1280
1281 loop_count = DEFAULT_LOOP_COUNT;
1282 while (--loop_count && isp_inw(host, HOST_HCCR) == RISC_BUSY) {
1283 barrier();
1284 cpu_relax();
1285 }
1286 if (!loop_count)
1287 printk("qlogicisp: reset_hardware loop timeout\n");
1288
1289 isp_outw(0, host, ISP_CFG1);
1290
1291 #if DEBUG_ISP1020
1292 printk("qlogicisp : mbox 0 0x%04x \n", isp_inw(host, MBOX0));
1293 printk("qlogicisp : mbox 1 0x%04x \n", isp_inw(host, MBOX1));
1294 printk("qlogicisp : mbox 2 0x%04x \n", isp_inw(host, MBOX2));
1295 printk("qlogicisp : mbox 3 0x%04x \n", isp_inw(host, MBOX3));
1296 printk("qlogicisp : mbox 4 0x%04x \n", isp_inw(host, MBOX4));
1297 printk("qlogicisp : mbox 5 0x%04x \n", isp_inw(host, MBOX5));
1298 #endif /* DEBUG_ISP1020 */
1299
1300 param[0] = MBOX_NO_OP;
1301 isp1020_mbox_command(host, param);
1302 if (param[0] != MBOX_COMMAND_COMPLETE) {
1303 printk("qlogicisp : NOP test failed\n");
1304 return 1;
1305 }
1306
1307 DEBUG(printk("qlogicisp : loading risc ram\n"));
1308
1309 #if RELOAD_FIRMWARE
1310 for (loop_count = 0; loop_count < risc_code_length01; loop_count++) {
1311 param[0] = MBOX_WRITE_RAM_WORD;
1312 param[1] = risc_code_addr01 + loop_count;
1313 param[2] = risc_code01[loop_count];
1314 isp1020_mbox_command(host, param);
1315 if (param[0] != MBOX_COMMAND_COMPLETE) {
1316 printk("qlogicisp : firmware load failure at %d\n",
1317 loop_count);
1318 return 1;
1319 }
1320 }
1321 #endif /* RELOAD_FIRMWARE */
1322
1323 DEBUG(printk("qlogicisp : verifying checksum\n"));
1324
1325 param[0] = MBOX_VERIFY_CHECKSUM;
1326 param[1] = risc_code_addr01;
1327
1328 isp1020_mbox_command(host, param);
1329
1330 if (param[0] != MBOX_COMMAND_COMPLETE) {
1331 printk("qlogicisp : ram checksum failure\n");
1332 return 1;
1333 }
1334
1335 DEBUG(printk("qlogicisp : executing firmware\n"));
1336
1337 param[0] = MBOX_EXEC_FIRMWARE;
1338 param[1] = risc_code_addr01;
1339
1340 isp1020_mbox_command(host, param);
1341
1342 param[0] = MBOX_ABOUT_FIRMWARE;
1343
1344 isp1020_mbox_command(host, param);
1345
1346 if (param[0] != MBOX_COMMAND_COMPLETE) {
1347 printk("qlogicisp : about firmware failure\n");
1348 return 1;
1349 }
1350
1351 DEBUG(printk("qlogicisp : firmware major revision %d\n", param[1]));
1352 DEBUG(printk("qlogicisp : firmware minor revision %d\n", param[2]));
1353
1354 LEAVE("isp1020_reset_hardware");
1355
1356 return 0;
1357 }
1358
1359
isp1020_init(struct Scsi_Host * sh)1360 static int isp1020_init(struct Scsi_Host *sh)
1361 {
1362 u_long io_base, mem_base, io_flags, mem_flags;
1363 struct isp1020_hostdata *hostdata;
1364 u_char revision;
1365 u_int irq;
1366 u_short command;
1367 struct pci_dev *pdev;
1368
1369 ENTER("isp1020_init");
1370
1371 hostdata = (struct isp1020_hostdata *) sh->hostdata;
1372 pdev = hostdata->pci_dev;
1373
1374 if (pci_read_config_word(pdev, PCI_COMMAND, &command)
1375 || pci_read_config_byte(pdev, PCI_CLASS_REVISION, &revision))
1376 {
1377 printk("qlogicisp : error reading PCI configuration\n");
1378 return 1;
1379 }
1380
1381 io_base = pci_resource_start(pdev, 0);
1382 mem_base = pci_resource_start(pdev, 1);
1383 io_flags = pci_resource_flags(pdev, 0);
1384 mem_flags = pci_resource_flags(pdev, 1);
1385 irq = pdev->irq;
1386
1387 if (pdev->vendor != PCI_VENDOR_ID_QLOGIC) {
1388 printk("qlogicisp : 0x%04x is not QLogic vendor ID\n",
1389 pdev->vendor);
1390 return 1;
1391 }
1392
1393 if (pdev->device != PCI_DEVICE_ID_QLOGIC_ISP1020) {
1394 printk("qlogicisp : 0x%04x does not match ISP1020 device id\n",
1395 pdev->device);
1396 return 1;
1397 }
1398
1399 if (!(command & PCI_COMMAND_MASTER)) {
1400 printk("qlogicisp : bus mastering is disabled\n");
1401 return 1;
1402 }
1403
1404 sh->io_port = io_base;
1405
1406 /*
1407 By default, we choose to use PCI memory-mapped registers,
1408 if configured/available.
1409
1410 NOTE: we only ioremap() if we are going to use PCI
1411 memory-mapped registers, or only request_region() if using
1412 PCI I/O registers; we never do both anymore.
1413 */
1414 if ((command & PCI_COMMAND_MEMORY) &&
1415 ((mem_flags & 1) == 0)) {
1416 mem_base = (u_long) ioremap(mem_base, PAGE_SIZE);
1417 if (!mem_base) {
1418 printk("qlogicisp : i/o remapping failed.\n");
1419 return 1;
1420 }
1421 hostdata->memaddr = mem_base;
1422 sh->io_port = io_base = 0;
1423 } else {
1424 if (command & PCI_COMMAND_IO && (io_flags & 3) != 1) {
1425 printk("qlogicisp : i/o mapping is disabled\n");
1426 return 1;
1427 }
1428 if (!request_region(sh->io_port, 0xff, "qlogicisp")) {
1429 printk("qlogicisp : i/o region 0x%lx-0x%lx already "
1430 "in use\n",
1431 sh->io_port, sh->io_port + 0xff);
1432 return 1;
1433 }
1434 hostdata->memaddr = 0; /* zero to signify no i/o mapping */
1435 mem_base = 0;
1436 }
1437
1438 if (revision != ISP1020_REV_ID)
1439 printk("qlogicisp : new isp1020 revision ID (%d)\n", revision);
1440
1441 if (isp_inw(sh, PCI_ID_LOW) != PCI_VENDOR_ID_QLOGIC
1442 || isp_inw(sh, PCI_ID_HIGH) != PCI_DEVICE_ID_QLOGIC_ISP1020)
1443 {
1444 printk("qlogicisp : can't decode %s address space 0x%lx\n",
1445 (io_base ? "I/O" : "MEM"),
1446 (io_base ? io_base : mem_base));
1447 goto out_unmap;
1448 }
1449
1450 hostdata->revision = revision;
1451
1452 sh->irq = irq;
1453 sh->max_id = MAX_TARGETS;
1454 sh->max_lun = MAX_LUNS;
1455
1456 hostdata->res_cpu = pci_alloc_consistent(hostdata->pci_dev,
1457 QSIZE(RES_QUEUE_LEN),
1458 &hostdata->res_dma);
1459 if (hostdata->res_cpu == NULL) {
1460 printk("qlogicisp : can't allocate response queue\n");
1461 goto out_unmap;
1462 }
1463
1464 hostdata->req_cpu = pci_alloc_consistent(hostdata->pci_dev,
1465 QSIZE(QLOGICISP_REQ_QUEUE_LEN),
1466 &hostdata->req_dma);
1467 if (hostdata->req_cpu == NULL) {
1468 pci_free_consistent(hostdata->pci_dev,
1469 QSIZE(RES_QUEUE_LEN),
1470 hostdata->res_cpu,
1471 hostdata->res_dma);
1472 printk("qlogicisp : can't allocate request queue\n");
1473 goto out_unmap;
1474 }
1475
1476 LEAVE("isp1020_init");
1477
1478 return 0;
1479
1480 out_unmap:
1481 if (mem_base) iounmap((void *)hostdata->memaddr);
1482 if (io_base) release_region(sh->io_port, 0xff);
1483 return 1;
1484 }
1485
1486
1487 #if USE_NVRAM_DEFAULTS
1488
isp1020_get_defaults(struct Scsi_Host * host)1489 static int isp1020_get_defaults(struct Scsi_Host *host)
1490 {
1491 int i;
1492 u_short value;
1493 struct isp1020_hostdata *hostdata =
1494 (struct isp1020_hostdata *) host->hostdata;
1495
1496 ENTER("isp1020_get_defaults");
1497
1498 if (!isp1020_verify_nvram(host)) {
1499 printk("qlogicisp : nvram checksum failure\n");
1500 printk("qlogicisp : attempting to use default parameters\n");
1501 return isp1020_set_defaults(host);
1502 }
1503
1504 value = isp1020_read_nvram_word(host, 2);
1505 hostdata->host_param.fifo_threshold = (value >> 8) & 0x03;
1506 hostdata->host_param.host_adapter_enable = (value >> 11) & 0x01;
1507 hostdata->host_param.initiator_scsi_id = (value >> 12) & 0x0f;
1508
1509 value = isp1020_read_nvram_word(host, 3);
1510 hostdata->host_param.bus_reset_delay = value & 0xff;
1511 hostdata->host_param.retry_count = value >> 8;
1512
1513 value = isp1020_read_nvram_word(host, 4);
1514 hostdata->host_param.retry_delay = value & 0xff;
1515 hostdata->host_param.async_data_setup_time = (value >> 8) & 0x0f;
1516 hostdata->host_param.req_ack_active_negation = (value >> 12) & 0x01;
1517 hostdata->host_param.data_line_active_negation = (value >> 13) & 0x01;
1518 hostdata->host_param.data_dma_burst_enable = (value >> 14) & 0x01;
1519 hostdata->host_param.command_dma_burst_enable = (value >> 15);
1520
1521 value = isp1020_read_nvram_word(host, 5);
1522 hostdata->host_param.tag_aging = value & 0xff;
1523
1524 value = isp1020_read_nvram_word(host, 6);
1525 hostdata->host_param.selection_timeout = value & 0xffff;
1526
1527 value = isp1020_read_nvram_word(host, 7);
1528 hostdata->host_param.max_queue_depth = value & 0xffff;
1529
1530 #if DEBUG_ISP1020_SETUP
1531 printk("qlogicisp : fifo threshold=%d\n",
1532 hostdata->host_param.fifo_threshold);
1533 printk("qlogicisp : initiator scsi id=%d\n",
1534 hostdata->host_param.initiator_scsi_id);
1535 printk("qlogicisp : bus reset delay=%d\n",
1536 hostdata->host_param.bus_reset_delay);
1537 printk("qlogicisp : retry count=%d\n",
1538 hostdata->host_param.retry_count);
1539 printk("qlogicisp : retry delay=%d\n",
1540 hostdata->host_param.retry_delay);
1541 printk("qlogicisp : async data setup time=%d\n",
1542 hostdata->host_param.async_data_setup_time);
1543 printk("qlogicisp : req/ack active negation=%d\n",
1544 hostdata->host_param.req_ack_active_negation);
1545 printk("qlogicisp : data line active negation=%d\n",
1546 hostdata->host_param.data_line_active_negation);
1547 printk("qlogicisp : data DMA burst enable=%d\n",
1548 hostdata->host_param.data_dma_burst_enable);
1549 printk("qlogicisp : command DMA burst enable=%d\n",
1550 hostdata->host_param.command_dma_burst_enable);
1551 printk("qlogicisp : tag age limit=%d\n",
1552 hostdata->host_param.tag_aging);
1553 printk("qlogicisp : selection timeout limit=%d\n",
1554 hostdata->host_param.selection_timeout);
1555 printk("qlogicisp : max queue depth=%d\n",
1556 hostdata->host_param.max_queue_depth);
1557 #endif /* DEBUG_ISP1020_SETUP */
1558
1559 for (i = 0; i < MAX_TARGETS; i++) {
1560
1561 value = isp1020_read_nvram_word(host, 14 + i * 3);
1562 hostdata->dev_param[i].device_flags = value & 0xff;
1563 hostdata->dev_param[i].execution_throttle = value >> 8;
1564
1565 value = isp1020_read_nvram_word(host, 15 + i * 3);
1566 hostdata->dev_param[i].synchronous_period = value & 0xff;
1567 hostdata->dev_param[i].synchronous_offset = (value >> 8) & 0x0f;
1568 hostdata->dev_param[i].device_enable = (value >> 12) & 0x01;
1569
1570 #if DEBUG_ISP1020_SETUP
1571 printk("qlogicisp : target 0x%02x\n", i);
1572 printk("qlogicisp : device flags=0x%02x\n",
1573 hostdata->dev_param[i].device_flags);
1574 printk("qlogicisp : execution throttle=%d\n",
1575 hostdata->dev_param[i].execution_throttle);
1576 printk("qlogicisp : synchronous period=%d\n",
1577 hostdata->dev_param[i].synchronous_period);
1578 printk("qlogicisp : synchronous offset=%d\n",
1579 hostdata->dev_param[i].synchronous_offset);
1580 printk("qlogicisp : device enable=%d\n",
1581 hostdata->dev_param[i].device_enable);
1582 #endif /* DEBUG_ISP1020_SETUP */
1583 }
1584
1585 LEAVE("isp1020_get_defaults");
1586
1587 return 0;
1588 }
1589
1590
1591 #define ISP1020_NVRAM_LEN 0x40
1592 #define ISP1020_NVRAM_SIG1 0x5349
1593 #define ISP1020_NVRAM_SIG2 0x2050
1594
isp1020_verify_nvram(struct Scsi_Host * host)1595 static int isp1020_verify_nvram(struct Scsi_Host *host)
1596 {
1597 int i;
1598 u_short value;
1599 u_char checksum = 0;
1600
1601 for (i = 0; i < ISP1020_NVRAM_LEN; i++) {
1602 value = isp1020_read_nvram_word(host, i);
1603
1604 switch (i) {
1605 case 0:
1606 if (value != ISP1020_NVRAM_SIG1) return 0;
1607 break;
1608 case 1:
1609 if (value != ISP1020_NVRAM_SIG2) return 0;
1610 break;
1611 case 2:
1612 if ((value & 0xff) != 0x02) return 0;
1613 break;
1614 }
1615 checksum += value & 0xff;
1616 checksum += value >> 8;
1617 }
1618
1619 return (checksum == 0);
1620 }
1621
1622 #define NVRAM_DELAY() udelay(2) /* 2 microsecond delay */
1623
1624
isp1020_read_nvram_word(struct Scsi_Host * host,u_short byte)1625 u_short isp1020_read_nvram_word(struct Scsi_Host *host, u_short byte)
1626 {
1627 int i;
1628 u_short value, output, input;
1629
1630 byte &= 0x3f; byte |= 0x0180;
1631
1632 for (i = 8; i >= 0; i--) {
1633 output = ((byte >> i) & 0x1) ? 0x4 : 0x0;
1634 isp_outw(output | 0x2, host, PCI_NVRAM); NVRAM_DELAY();
1635 isp_outw(output | 0x3, host, PCI_NVRAM); NVRAM_DELAY();
1636 isp_outw(output | 0x2, host, PCI_NVRAM); NVRAM_DELAY();
1637 }
1638
1639 for (i = 0xf, value = 0; i >= 0; i--) {
1640 value <<= 1;
1641 isp_outw(0x3, host, PCI_NVRAM); NVRAM_DELAY();
1642 input = isp_inw(host, PCI_NVRAM); NVRAM_DELAY();
1643 isp_outw(0x2, host, PCI_NVRAM); NVRAM_DELAY();
1644 if (input & 0x8) value |= 1;
1645 }
1646
1647 isp_outw(0x0, host, PCI_NVRAM); NVRAM_DELAY();
1648
1649 return value;
1650 }
1651
1652 #endif /* USE_NVRAM_DEFAULTS */
1653
1654
isp1020_set_defaults(struct Scsi_Host * host)1655 static int isp1020_set_defaults(struct Scsi_Host *host)
1656 {
1657 struct isp1020_hostdata *hostdata =
1658 (struct isp1020_hostdata *) host->hostdata;
1659 int i;
1660
1661 ENTER("isp1020_set_defaults");
1662
1663 hostdata->host_param.fifo_threshold = 2;
1664 hostdata->host_param.host_adapter_enable = 1;
1665 hostdata->host_param.initiator_scsi_id = 7;
1666 hostdata->host_param.bus_reset_delay = 3;
1667 hostdata->host_param.retry_count = 0;
1668 hostdata->host_param.retry_delay = 1;
1669 hostdata->host_param.async_data_setup_time = 6;
1670 hostdata->host_param.req_ack_active_negation = 1;
1671 hostdata->host_param.data_line_active_negation = 1;
1672 hostdata->host_param.data_dma_burst_enable = 1;
1673 hostdata->host_param.command_dma_burst_enable = 1;
1674 hostdata->host_param.tag_aging = 8;
1675 hostdata->host_param.selection_timeout = 250;
1676 hostdata->host_param.max_queue_depth = 256;
1677
1678 for (i = 0; i < MAX_TARGETS; i++) {
1679 hostdata->dev_param[i].device_flags = 0xfd;
1680 hostdata->dev_param[i].execution_throttle = 16;
1681 hostdata->dev_param[i].synchronous_period = 25;
1682 hostdata->dev_param[i].synchronous_offset = 12;
1683 hostdata->dev_param[i].device_enable = 1;
1684 }
1685
1686 LEAVE("isp1020_set_defaults");
1687
1688 return 0;
1689 }
1690
1691
isp1020_load_parameters(struct Scsi_Host * host)1692 static int isp1020_load_parameters(struct Scsi_Host *host)
1693 {
1694 int i, k;
1695 #ifdef CONFIG_QL_ISP_A64
1696 u_long queue_addr;
1697 u_short param[8];
1698 #else
1699 u_int queue_addr;
1700 u_short param[6];
1701 #endif
1702 u_short isp_cfg1, hwrev;
1703 unsigned long flags;
1704 struct isp1020_hostdata *hostdata =
1705 (struct isp1020_hostdata *) host->hostdata;
1706
1707 ENTER("isp1020_load_parameters");
1708
1709 save_flags(flags);
1710 cli();
1711
1712 hwrev = isp_inw(host, ISP_CFG0) & ISP_CFG0_HWMSK;
1713 isp_cfg1 = ISP_CFG1_F64 | ISP_CFG1_BENAB;
1714 if (hwrev == ISP_CFG0_1040A) {
1715 /* Busted fifo, says mjacob. */
1716 isp_cfg1 &= ISP_CFG1_BENAB;
1717 }
1718
1719 isp_outw(isp_inw(host, ISP_CFG1) | isp_cfg1, host, ISP_CFG1);
1720 isp_outw(isp_inw(host, CDMA_CONF) | DMA_CONF_BENAB, host, CDMA_CONF);
1721 isp_outw(isp_inw(host, DDMA_CONF) | DMA_CONF_BENAB, host, DDMA_CONF);
1722
1723 param[0] = MBOX_SET_INIT_SCSI_ID;
1724 param[1] = hostdata->host_param.initiator_scsi_id;
1725
1726 isp1020_mbox_command(host, param);
1727
1728 if (param[0] != MBOX_COMMAND_COMPLETE) {
1729 restore_flags(flags);
1730 printk("qlogicisp : set initiator id failure\n");
1731 return 1;
1732 }
1733
1734 param[0] = MBOX_SET_RETRY_COUNT;
1735 param[1] = hostdata->host_param.retry_count;
1736 param[2] = hostdata->host_param.retry_delay;
1737
1738 isp1020_mbox_command(host, param);
1739
1740 if (param[0] != MBOX_COMMAND_COMPLETE) {
1741 restore_flags(flags);
1742 printk("qlogicisp : set retry count failure\n");
1743 return 1;
1744 }
1745
1746 param[0] = MBOX_SET_ASYNC_DATA_SETUP_TIME;
1747 param[1] = hostdata->host_param.async_data_setup_time;
1748
1749 isp1020_mbox_command(host, param);
1750
1751 if (param[0] != MBOX_COMMAND_COMPLETE) {
1752 restore_flags(flags);
1753 printk("qlogicisp : async data setup time failure\n");
1754 return 1;
1755 }
1756
1757 param[0] = MBOX_SET_ACTIVE_NEG_STATE;
1758 param[1] = (hostdata->host_param.req_ack_active_negation << 4)
1759 | (hostdata->host_param.data_line_active_negation << 5);
1760
1761 isp1020_mbox_command(host, param);
1762
1763 if (param[0] != MBOX_COMMAND_COMPLETE) {
1764 restore_flags(flags);
1765 printk("qlogicisp : set active negation state failure\n");
1766 return 1;
1767 }
1768
1769 param[0] = MBOX_SET_PCI_CONTROL_PARAMS;
1770 param[1] = hostdata->host_param.data_dma_burst_enable << 1;
1771 param[2] = hostdata->host_param.command_dma_burst_enable << 1;
1772
1773 isp1020_mbox_command(host, param);
1774
1775 if (param[0] != MBOX_COMMAND_COMPLETE) {
1776 restore_flags(flags);
1777 printk("qlogicisp : set pci control parameter failure\n");
1778 return 1;
1779 }
1780
1781 param[0] = MBOX_SET_TAG_AGE_LIMIT;
1782 param[1] = hostdata->host_param.tag_aging;
1783
1784 isp1020_mbox_command(host, param);
1785
1786 if (param[0] != MBOX_COMMAND_COMPLETE) {
1787 restore_flags(flags);
1788 printk("qlogicisp : set tag age limit failure\n");
1789 return 1;
1790 }
1791
1792 param[0] = MBOX_SET_SELECT_TIMEOUT;
1793 param[1] = hostdata->host_param.selection_timeout;
1794
1795 isp1020_mbox_command(host, param);
1796
1797 if (param[0] != MBOX_COMMAND_COMPLETE) {
1798 restore_flags(flags);
1799 printk("qlogicisp : set selection timeout failure\n");
1800 return 1;
1801 }
1802
1803 for (i = 0; i < MAX_TARGETS; i++) {
1804
1805 if (!hostdata->dev_param[i].device_enable)
1806 continue;
1807
1808 param[0] = MBOX_SET_TARGET_PARAMS;
1809 param[1] = i << 8;
1810 param[2] = hostdata->dev_param[i].device_flags << 8;
1811 param[3] = (hostdata->dev_param[i].synchronous_offset << 8)
1812 | hostdata->dev_param[i].synchronous_period;
1813
1814 isp1020_mbox_command(host, param);
1815
1816 if (param[0] != MBOX_COMMAND_COMPLETE) {
1817 restore_flags(flags);
1818 printk("qlogicisp : set target parameter failure\n");
1819 return 1;
1820 }
1821
1822 for (k = 0; k < MAX_LUNS; k++) {
1823
1824 param[0] = MBOX_SET_DEV_QUEUE_PARAMS;
1825 param[1] = (i << 8) | k;
1826 param[2] = hostdata->host_param.max_queue_depth;
1827 param[3] = hostdata->dev_param[i].execution_throttle;
1828
1829 isp1020_mbox_command(host, param);
1830
1831 if (param[0] != MBOX_COMMAND_COMPLETE) {
1832 restore_flags(flags);
1833 printk("qlogicisp : set device queue "
1834 "parameter failure\n");
1835 return 1;
1836 }
1837 }
1838 }
1839
1840 queue_addr = hostdata->res_dma;
1841 #ifdef CONFIG_QL_ISP_A64
1842 param[0] = MBOX_CMD_INIT_RESPONSE_QUEUE_64;
1843 #else
1844 param[0] = MBOX_INIT_RES_QUEUE;
1845 #endif
1846 param[1] = RES_QUEUE_LEN + 1;
1847 param[2] = (u_short) (queue_addr >> 16);
1848 param[3] = (u_short) (queue_addr & 0xffff);
1849 param[4] = 0;
1850 param[5] = 0;
1851 #ifdef CONFIG_QL_ISP_A64
1852 param[6] = (u_short) (queue_addr >> 48);
1853 param[7] = (u_short) (queue_addr >> 32);
1854 #endif
1855
1856 isp1020_mbox_command(host, param);
1857
1858 if (param[0] != MBOX_COMMAND_COMPLETE) {
1859 restore_flags(flags);
1860 printk("qlogicisp : set response queue failure\n");
1861 return 1;
1862 }
1863
1864 queue_addr = hostdata->req_dma;
1865 #ifdef CONFIG_QL_ISP_A64
1866 param[0] = MBOX_CMD_INIT_REQUEST_QUEUE_64;
1867 #else
1868 param[0] = MBOX_INIT_REQ_QUEUE;
1869 #endif
1870 param[1] = QLOGICISP_REQ_QUEUE_LEN + 1;
1871 param[2] = (u_short) (queue_addr >> 16);
1872 param[3] = (u_short) (queue_addr & 0xffff);
1873 param[4] = 0;
1874
1875 #ifdef CONFIG_QL_ISP_A64
1876 param[5] = 0;
1877 param[6] = (u_short) (queue_addr >> 48);
1878 param[7] = (u_short) (queue_addr >> 32);
1879 #endif
1880
1881 isp1020_mbox_command(host, param);
1882
1883 if (param[0] != MBOX_COMMAND_COMPLETE) {
1884 restore_flags(flags);
1885 printk("qlogicisp : set request queue failure\n");
1886 return 1;
1887 }
1888
1889 restore_flags(flags);
1890
1891 LEAVE("isp1020_load_parameters");
1892
1893 return 0;
1894 }
1895
1896
1897 /*
1898 * currently, this is only called during initialization or abort/reset,
1899 * at which times interrupts are disabled, so polling is OK, I guess...
1900 */
isp1020_mbox_command(struct Scsi_Host * host,u_short param[])1901 static int isp1020_mbox_command(struct Scsi_Host *host, u_short param[])
1902 {
1903 int loop_count;
1904
1905 if (mbox_param[param[0]] == 0)
1906 return 1;
1907
1908 loop_count = DEFAULT_LOOP_COUNT;
1909 while (--loop_count && isp_inw(host, HOST_HCCR) & 0x0080) {
1910 barrier();
1911 cpu_relax();
1912 }
1913 if (!loop_count)
1914 printk("qlogicisp: mbox_command loop timeout #1\n");
1915
1916 switch(mbox_param[param[0]] >> 4) {
1917 case 8: isp_outw(param[7], host, MBOX7);
1918 case 7: isp_outw(param[6], host, MBOX6);
1919 case 6: isp_outw(param[5], host, MBOX5);
1920 case 5: isp_outw(param[4], host, MBOX4);
1921 case 4: isp_outw(param[3], host, MBOX3);
1922 case 3: isp_outw(param[2], host, MBOX2);
1923 case 2: isp_outw(param[1], host, MBOX1);
1924 case 1: isp_outw(param[0], host, MBOX0);
1925 }
1926
1927 isp_outw(0x0, host, PCI_SEMAPHORE);
1928 isp_outw(HCCR_CLEAR_RISC_INTR, host, HOST_HCCR);
1929 isp_outw(HCCR_SET_HOST_INTR, host, HOST_HCCR);
1930
1931 loop_count = DEFAULT_LOOP_COUNT;
1932 while (--loop_count && !(isp_inw(host, PCI_INTF_STS) & 0x04)) {
1933 barrier();
1934 cpu_relax();
1935 }
1936 if (!loop_count)
1937 printk("qlogicisp: mbox_command loop timeout #2\n");
1938
1939 loop_count = DEFAULT_LOOP_COUNT;
1940 while (--loop_count && isp_inw(host, MBOX0) == 0x04) {
1941 barrier();
1942 cpu_relax();
1943 }
1944 if (!loop_count)
1945 printk("qlogicisp: mbox_command loop timeout #3\n");
1946
1947 switch(mbox_param[param[0]] & 0xf) {
1948 case 8: param[7] = isp_inw(host, MBOX7);
1949 case 7: param[6] = isp_inw(host, MBOX6);
1950 case 6: param[5] = isp_inw(host, MBOX5);
1951 case 5: param[4] = isp_inw(host, MBOX4);
1952 case 4: param[3] = isp_inw(host, MBOX3);
1953 case 3: param[2] = isp_inw(host, MBOX2);
1954 case 2: param[1] = isp_inw(host, MBOX1);
1955 case 1: param[0] = isp_inw(host, MBOX0);
1956 }
1957
1958 isp_outw(0x0, host, PCI_SEMAPHORE);
1959 isp_outw(HCCR_CLEAR_RISC_INTR, host, HOST_HCCR);
1960
1961 return 0;
1962 }
1963
1964
1965 #if DEBUG_ISP1020_INTR
1966
isp1020_print_status_entry(struct Status_Entry * status)1967 void isp1020_print_status_entry(struct Status_Entry *status)
1968 {
1969 int i;
1970
1971 printk("qlogicisp : entry count = 0x%02x, type = 0x%02x, flags = 0x%02x\n",
1972 status->hdr.entry_cnt, status->hdr.entry_type, status->hdr.flags);
1973 printk("qlogicisp : scsi status = 0x%04x, completion status = 0x%04x\n",
1974 le16_to_cpu(status->scsi_status), le16_to_cpu(status->completion_status));
1975 printk("qlogicisp : state flags = 0x%04x, status flags = 0x%04x\n",
1976 le16_to_cpu(status->state_flags), le16_to_cpu(status->status_flags));
1977 printk("qlogicisp : time = 0x%04x, request sense length = 0x%04x\n",
1978 le16_to_cpu(status->time), le16_to_cpu(status->req_sense_len));
1979 printk("qlogicisp : residual transfer length = 0x%08x\n",
1980 le32_to_cpu(status->residual));
1981
1982 for (i = 0; i < le16_to_cpu(status->req_sense_len); i++)
1983 printk("qlogicisp : sense data = 0x%02x\n", status->req_sense_data[i]);
1984 }
1985
1986 #endif /* DEBUG_ISP1020_INTR */
1987
1988
1989 #if DEBUG_ISP1020
1990
isp1020_print_scsi_cmd(Scsi_Cmnd * cmd)1991 void isp1020_print_scsi_cmd(Scsi_Cmnd *cmd)
1992 {
1993 int i;
1994
1995 printk("qlogicisp : target = 0x%02x, lun = 0x%02x, cmd_len = 0x%02x\n",
1996 cmd->target, cmd->lun, cmd->cmd_len);
1997 printk("qlogicisp : command = ");
1998 for (i = 0; i < cmd->cmd_len; i++)
1999 printk("0x%02x ", cmd->cmnd[i]);
2000 printk("\n");
2001 }
2002
2003 #endif /* DEBUG_ISP1020 */
2004
2005 MODULE_LICENSE("GPL");
2006
2007 static Scsi_Host_Template driver_template = QLOGICISP;
2008
2009 #include "scsi_module.c"
2010