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Merge tag 'block-5.11-2021-01-10' of git://git.kernel.dk/linux-block
[linux/fpc-iii.git] / drivers / scsi / hptiop.c
blobdb4c7a7ff4dd50e1ff9c2773d34d7d8509b1c179
1 // SPDX-License-Identifier: GPL-2.0-only
2 /*
3 * HighPoint RR3xxx/4xxx controller driver for Linux
4 * Copyright (C) 2006-2015 HighPoint Technologies, Inc. All Rights Reserved.
5 *
6 * Please report bugs/comments/suggestions to linux@highpoint-tech.com
7 *
8 * For more information, visit http://www.highpoint-tech.com
9 */
10 #include <linux/module.h>
11 #include <linux/types.h>
12 #include <linux/string.h>
13 #include <linux/kernel.h>
14 #include <linux/pci.h>
15 #include <linux/interrupt.h>
16 #include <linux/errno.h>
17 #include <linux/delay.h>
18 #include <linux/timer.h>
19 #include <linux/spinlock.h>
20 #include <linux/gfp.h>
21 #include <linux/uaccess.h>
22 #include <asm/io.h>
23 #include <asm/div64.h>
24 #include <scsi/scsi_cmnd.h>
25 #include <scsi/scsi_device.h>
26 #include <scsi/scsi.h>
27 #include <scsi/scsi_tcq.h>
28 #include <scsi/scsi_host.h>
29
30 #include "hptiop.h"
31
32 MODULE_AUTHOR("HighPoint Technologies, Inc.");
33 MODULE_DESCRIPTION("HighPoint RocketRAID 3xxx/4xxx Controller Driver");
34
35 static char driver_name[] = "hptiop";
36 static const char driver_name_long[] = "RocketRAID 3xxx/4xxx Controller driver";
37 static const char driver_ver[] = "v1.10.0";
38
39 static int iop_send_sync_msg(struct hptiop_hba *hba, u32 msg, u32 millisec);
40 static void hptiop_finish_scsi_req(struct hptiop_hba *hba, u32 tag,
41 struct hpt_iop_request_scsi_command *req);
42 static void hptiop_host_request_callback_itl(struct hptiop_hba *hba, u32 tag);
43 static void hptiop_iop_request_callback_itl(struct hptiop_hba *hba, u32 tag);
44 static void hptiop_message_callback(struct hptiop_hba *hba, u32 msg);
45
46 static int iop_wait_ready_itl(struct hptiop_hba *hba, u32 millisec)
47 {
48 u32 req = 0;
49 int i;
50
51 for (i = 0; i < millisec; i++) {
52 req = readl(&hba->u.itl.iop->inbound_queue);
53 if (req != IOPMU_QUEUE_EMPTY)
54 break;
55 msleep(1);
56 }
57
58 if (req != IOPMU_QUEUE_EMPTY) {
59 writel(req, &hba->u.itl.iop->outbound_queue);
60 readl(&hba->u.itl.iop->outbound_intstatus);
61 return 0;
62 }
63
64 return -1;
65 }
66
67 static int iop_wait_ready_mv(struct hptiop_hba *hba, u32 millisec)
68 {
69 return iop_send_sync_msg(hba, IOPMU_INBOUND_MSG0_NOP, millisec);
70 }
71
72 static int iop_wait_ready_mvfrey(struct hptiop_hba *hba, u32 millisec)
73 {
74 return iop_send_sync_msg(hba, IOPMU_INBOUND_MSG0_NOP, millisec);
75 }
76
77 static void hptiop_request_callback_itl(struct hptiop_hba *hba, u32 tag)
78 {
79 if (tag & IOPMU_QUEUE_ADDR_HOST_BIT)
80 hptiop_host_request_callback_itl(hba,
81 tag & ~IOPMU_QUEUE_ADDR_HOST_BIT);
82 else
83 hptiop_iop_request_callback_itl(hba, tag);
84 }
85
86 static void hptiop_drain_outbound_queue_itl(struct hptiop_hba *hba)
87 {
88 u32 req;
89
90 while ((req = readl(&hba->u.itl.iop->outbound_queue)) !=
91 IOPMU_QUEUE_EMPTY) {
92
93 if (req & IOPMU_QUEUE_MASK_HOST_BITS)
94 hptiop_request_callback_itl(hba, req);
95 else {
96 struct hpt_iop_request_header __iomem * p;
97
98 p = (struct hpt_iop_request_header __iomem *)
99 ((char __iomem *)hba->u.itl.iop + req);
100
101 if (readl(&p->flags) & IOP_REQUEST_FLAG_SYNC_REQUEST) {
102 if (readl(&p->context))
103 hptiop_request_callback_itl(hba, req);
104 else
105 writel(1, &p->context);
106 }
107 else
108 hptiop_request_callback_itl(hba, req);
109 }
110 }
111 }
112
113 static int iop_intr_itl(struct hptiop_hba *hba)
114 {
115 struct hpt_iopmu_itl __iomem *iop = hba->u.itl.iop;
116 void __iomem *plx = hba->u.itl.plx;
117 u32 status;
118 int ret = 0;
119
120 if (plx && readl(plx + 0x11C5C) & 0xf)
121 writel(1, plx + 0x11C60);
122
123 status = readl(&iop->outbound_intstatus);
124
125 if (status & IOPMU_OUTBOUND_INT_MSG0) {
126 u32 msg = readl(&iop->outbound_msgaddr0);
127
128 dprintk("received outbound msg %x\n", msg);
129 writel(IOPMU_OUTBOUND_INT_MSG0, &iop->outbound_intstatus);
130 hptiop_message_callback(hba, msg);
131 ret = 1;
132 }
133
134 if (status & IOPMU_OUTBOUND_INT_POSTQUEUE) {
135 hptiop_drain_outbound_queue_itl(hba);
136 ret = 1;
137 }
138
139 return ret;
140 }
141
142 static u64 mv_outbound_read(struct hpt_iopmu_mv __iomem *mu)
143 {
144 u32 outbound_tail = readl(&mu->outbound_tail);
145 u32 outbound_head = readl(&mu->outbound_head);
146
147 if (outbound_tail != outbound_head) {
148 u64 p;
149
150 memcpy_fromio(&p, &mu->outbound_q[mu->outbound_tail], 8);
151 outbound_tail++;
152
153 if (outbound_tail == MVIOP_QUEUE_LEN)
154 outbound_tail = 0;
155 writel(outbound_tail, &mu->outbound_tail);
156 return p;
157 } else
158 return 0;
159 }
160
161 static void mv_inbound_write(u64 p, struct hptiop_hba *hba)
162 {
163 u32 inbound_head = readl(&hba->u.mv.mu->inbound_head);
164 u32 head = inbound_head + 1;
165
166 if (head == MVIOP_QUEUE_LEN)
167 head = 0;
168
169 memcpy_toio(&hba->u.mv.mu->inbound_q[inbound_head], &p, 8);
170 writel(head, &hba->u.mv.mu->inbound_head);
171 writel(MVIOP_MU_INBOUND_INT_POSTQUEUE,
172 &hba->u.mv.regs->inbound_doorbell);
173 }
174
175 static void hptiop_request_callback_mv(struct hptiop_hba *hba, u64 tag)
176 {
177 u32 req_type = (tag >> 5) & 0x7;
178 struct hpt_iop_request_scsi_command *req;
179
180 dprintk("hptiop_request_callback_mv: tag=%llx\n", tag);
181
182 BUG_ON((tag & MVIOP_MU_QUEUE_REQUEST_RETURN_CONTEXT) == 0);
183
184 switch (req_type) {
185 case IOP_REQUEST_TYPE_GET_CONFIG:
186 case IOP_REQUEST_TYPE_SET_CONFIG:
187 hba->msg_done = 1;
188 break;
189
190 case IOP_REQUEST_TYPE_SCSI_COMMAND:
191 req = hba->reqs[tag >> 8].req_virt;
192 if (likely(tag & MVIOP_MU_QUEUE_REQUEST_RESULT_BIT))
193 req->header.result = cpu_to_le32(IOP_RESULT_SUCCESS);
194
195 hptiop_finish_scsi_req(hba, tag>>8, req);
196 break;
197
198 default:
199 break;
200 }
201 }
202
203 static int iop_intr_mv(struct hptiop_hba *hba)
204 {
205 u32 status;
206 int ret = 0;
207
208 status = readl(&hba->u.mv.regs->outbound_doorbell);
209 writel(~status, &hba->u.mv.regs->outbound_doorbell);
210
211 if (status & MVIOP_MU_OUTBOUND_INT_MSG) {
212 u32 msg;
213 msg = readl(&hba->u.mv.mu->outbound_msg);
214 dprintk("received outbound msg %x\n", msg);
215 hptiop_message_callback(hba, msg);
216 ret = 1;
217 }
218
219 if (status & MVIOP_MU_OUTBOUND_INT_POSTQUEUE) {
220 u64 tag;
221
222 while ((tag = mv_outbound_read(hba->u.mv.mu)))
223 hptiop_request_callback_mv(hba, tag);
224 ret = 1;
225 }
226
227 return ret;
228 }
229
230 static void hptiop_request_callback_mvfrey(struct hptiop_hba *hba, u32 _tag)
231 {
232 u32 req_type = _tag & 0xf;
233 struct hpt_iop_request_scsi_command *req;
234
235 switch (req_type) {
236 case IOP_REQUEST_TYPE_GET_CONFIG:
237 case IOP_REQUEST_TYPE_SET_CONFIG:
238 hba->msg_done = 1;
239 break;
240
241 case IOP_REQUEST_TYPE_SCSI_COMMAND:
242 req = hba->reqs[(_tag >> 4) & 0xff].req_virt;
243 if (likely(_tag & IOPMU_QUEUE_REQUEST_RESULT_BIT))
244 req->header.result = IOP_RESULT_SUCCESS;
245 hptiop_finish_scsi_req(hba, (_tag >> 4) & 0xff, req);
246 break;
247
248 default:
249 break;
250 }
251 }
252
253 static int iop_intr_mvfrey(struct hptiop_hba *hba)
254 {
255 u32 _tag, status, cptr, cur_rptr;
256 int ret = 0;
257
258 if (hba->initialized)
259 writel(0, &(hba->u.mvfrey.mu->pcie_f0_int_enable));
260
261 status = readl(&(hba->u.mvfrey.mu->f0_doorbell));
262 if (status) {
263 writel(status, &(hba->u.mvfrey.mu->f0_doorbell));
264 if (status & CPU_TO_F0_DRBL_MSG_BIT) {
265 u32 msg = readl(&(hba->u.mvfrey.mu->cpu_to_f0_msg_a));
266 dprintk("received outbound msg %x\n", msg);
267 hptiop_message_callback(hba, msg);
268 }
269 ret = 1;
270 }
271
272 status = readl(&(hba->u.mvfrey.mu->isr_cause));
273 if (status) {
274 writel(status, &(hba->u.mvfrey.mu->isr_cause));
275 do {
276 cptr = *hba->u.mvfrey.outlist_cptr & 0xff;
277 cur_rptr = hba->u.mvfrey.outlist_rptr;
278 while (cur_rptr != cptr) {
279 cur_rptr++;
280 if (cur_rptr == hba->u.mvfrey.list_count)
281 cur_rptr = 0;
282
283 _tag = hba->u.mvfrey.outlist[cur_rptr].val;
284 BUG_ON(!(_tag & IOPMU_QUEUE_MASK_HOST_BITS));
285 hptiop_request_callback_mvfrey(hba, _tag);
286 ret = 1;
287 }
288 hba->u.mvfrey.outlist_rptr = cur_rptr;
289 } while (cptr != (*hba->u.mvfrey.outlist_cptr & 0xff));
290 }
291
292 if (hba->initialized)
293 writel(0x1010, &(hba->u.mvfrey.mu->pcie_f0_int_enable));
294
295 return ret;
296 }
297
298 static int iop_send_sync_request_itl(struct hptiop_hba *hba,
299 void __iomem *_req, u32 millisec)
300 {
301 struct hpt_iop_request_header __iomem *req = _req;
302 u32 i;
303
304 writel(readl(&req->flags) | IOP_REQUEST_FLAG_SYNC_REQUEST, &req->flags);
305 writel(0, &req->context);
306 writel((unsigned long)req - (unsigned long)hba->u.itl.iop,
307 &hba->u.itl.iop->inbound_queue);
308 readl(&hba->u.itl.iop->outbound_intstatus);
309
310 for (i = 0; i < millisec; i++) {
311 iop_intr_itl(hba);
312 if (readl(&req->context))
313 return 0;
314 msleep(1);
315 }
316
317 return -1;
318 }
319
320 static int iop_send_sync_request_mv(struct hptiop_hba *hba,
321 u32 size_bits, u32 millisec)
322 {
323 struct hpt_iop_request_header *reqhdr = hba->u.mv.internal_req;
324 u32 i;
325
326 hba->msg_done = 0;
327 reqhdr->flags |= cpu_to_le32(IOP_REQUEST_FLAG_SYNC_REQUEST);
328 mv_inbound_write(hba->u.mv.internal_req_phy |
329 MVIOP_MU_QUEUE_ADDR_HOST_BIT | size_bits, hba);
330
331 for (i = 0; i < millisec; i++) {
332 iop_intr_mv(hba);
333 if (hba->msg_done)
334 return 0;
335 msleep(1);
336 }
337 return -1;
338 }
339
340 static int iop_send_sync_request_mvfrey(struct hptiop_hba *hba,
341 u32 size_bits, u32 millisec)
342 {
343 struct hpt_iop_request_header *reqhdr =
344 hba->u.mvfrey.internal_req.req_virt;
345 u32 i;
346
347 hba->msg_done = 0;
348 reqhdr->flags |= cpu_to_le32(IOP_REQUEST_FLAG_SYNC_REQUEST);
349 hba->ops->post_req(hba, &(hba->u.mvfrey.internal_req));
350
351 for (i = 0; i < millisec; i++) {
352 iop_intr_mvfrey(hba);
353 if (hba->msg_done)
354 break;
355 msleep(1);
356 }
357 return hba->msg_done ? 0 : -1;
358 }
359
360 static void hptiop_post_msg_itl(struct hptiop_hba *hba, u32 msg)
361 {
362 writel(msg, &hba->u.itl.iop->inbound_msgaddr0);
363 readl(&hba->u.itl.iop->outbound_intstatus);
364 }
365
366 static void hptiop_post_msg_mv(struct hptiop_hba *hba, u32 msg)
367 {
368 writel(msg, &hba->u.mv.mu->inbound_msg);
369 writel(MVIOP_MU_INBOUND_INT_MSG, &hba->u.mv.regs->inbound_doorbell);
370 readl(&hba->u.mv.regs->inbound_doorbell);
371 }
372
373 static void hptiop_post_msg_mvfrey(struct hptiop_hba *hba, u32 msg)
374 {
375 writel(msg, &(hba->u.mvfrey.mu->f0_to_cpu_msg_a));
376 readl(&(hba->u.mvfrey.mu->f0_to_cpu_msg_a));
377 }
378
379 static int iop_send_sync_msg(struct hptiop_hba *hba, u32 msg, u32 millisec)
380 {
381 u32 i;
382
383 hba->msg_done = 0;
384 hba->ops->disable_intr(hba);
385 hba->ops->post_msg(hba, msg);
386
387 for (i = 0; i < millisec; i++) {
388 spin_lock_irq(hba->host->host_lock);
389 hba->ops->iop_intr(hba);
390 spin_unlock_irq(hba->host->host_lock);
391 if (hba->msg_done)
392 break;
393 msleep(1);
394 }
395
396 hba->ops->enable_intr(hba);
397 return hba->msg_done? 0 : -1;
398 }
399
400 static int iop_get_config_itl(struct hptiop_hba *hba,
401 struct hpt_iop_request_get_config *config)
402 {
403 u32 req32;
404 struct hpt_iop_request_get_config __iomem *req;
405
406 req32 = readl(&hba->u.itl.iop->inbound_queue);
407 if (req32 == IOPMU_QUEUE_EMPTY)
408 return -1;
409
410 req = (struct hpt_iop_request_get_config __iomem *)
411 ((unsigned long)hba->u.itl.iop + req32);
412
413 writel(0, &req->header.flags);
414 writel(IOP_REQUEST_TYPE_GET_CONFIG, &req->header.type);
415 writel(sizeof(struct hpt_iop_request_get_config), &req->header.size);
416 writel(IOP_RESULT_PENDING, &req->header.result);
417
418 if (iop_send_sync_request_itl(hba, req, 20000)) {
419 dprintk("Get config send cmd failed\n");
420 return -1;
421 }
422
423 memcpy_fromio(config, req, sizeof(*config));
424 writel(req32, &hba->u.itl.iop->outbound_queue);
425 return 0;
426 }
427
428 static int iop_get_config_mv(struct hptiop_hba *hba,
429 struct hpt_iop_request_get_config *config)
430 {
431 struct hpt_iop_request_get_config *req = hba->u.mv.internal_req;
432
433 req->header.flags = cpu_to_le32(IOP_REQUEST_FLAG_OUTPUT_CONTEXT);
434 req->header.type = cpu_to_le32(IOP_REQUEST_TYPE_GET_CONFIG);
435 req->header.size =
436 cpu_to_le32(sizeof(struct hpt_iop_request_get_config));
437 req->header.result = cpu_to_le32(IOP_RESULT_PENDING);
438 req->header.context = cpu_to_le32(IOP_REQUEST_TYPE_GET_CONFIG<<5);
439 req->header.context_hi32 = 0;
440
441 if (iop_send_sync_request_mv(hba, 0, 20000)) {
442 dprintk("Get config send cmd failed\n");
443 return -1;
444 }
445
446 memcpy(config, req, sizeof(struct hpt_iop_request_get_config));
447 return 0;
448 }
449
450 static int iop_get_config_mvfrey(struct hptiop_hba *hba,
451 struct hpt_iop_request_get_config *config)
452 {
453 struct hpt_iop_request_get_config *info = hba->u.mvfrey.config;
454
455 if (info->header.size != sizeof(struct hpt_iop_request_get_config) ||
456 info->header.type != IOP_REQUEST_TYPE_GET_CONFIG)
457 return -1;
458
459 config->interface_version = info->interface_version;
460 config->firmware_version = info->firmware_version;
461 config->max_requests = info->max_requests;
462 config->request_size = info->request_size;
463 config->max_sg_count = info->max_sg_count;
464 config->data_transfer_length = info->data_transfer_length;
465 config->alignment_mask = info->alignment_mask;
466 config->max_devices = info->max_devices;
467 config->sdram_size = info->sdram_size;
468
469 return 0;
470 }
471
472 static int iop_set_config_itl(struct hptiop_hba *hba,
473 struct hpt_iop_request_set_config *config)
474 {
475 u32 req32;
476 struct hpt_iop_request_set_config __iomem *req;
477
478 req32 = readl(&hba->u.itl.iop->inbound_queue);
479 if (req32 == IOPMU_QUEUE_EMPTY)
480 return -1;
481
482 req = (struct hpt_iop_request_set_config __iomem *)
483 ((unsigned long)hba->u.itl.iop + req32);
484
485 memcpy_toio((u8 __iomem *)req + sizeof(struct hpt_iop_request_header),
486 (u8 *)config + sizeof(struct hpt_iop_request_header),
487 sizeof(struct hpt_iop_request_set_config) -
488 sizeof(struct hpt_iop_request_header));
489
490 writel(0, &req->header.flags);
491 writel(IOP_REQUEST_TYPE_SET_CONFIG, &req->header.type);
492 writel(sizeof(struct hpt_iop_request_set_config), &req->header.size);
493 writel(IOP_RESULT_PENDING, &req->header.result);
494
495 if (iop_send_sync_request_itl(hba, req, 20000)) {
496 dprintk("Set config send cmd failed\n");
497 return -1;
498 }
499
500 writel(req32, &hba->u.itl.iop->outbound_queue);
501 return 0;
502 }
503
504 static int iop_set_config_mv(struct hptiop_hba *hba,
505 struct hpt_iop_request_set_config *config)
506 {
507 struct hpt_iop_request_set_config *req = hba->u.mv.internal_req;
508
509 memcpy(req, config, sizeof(struct hpt_iop_request_set_config));
510 req->header.flags = cpu_to_le32(IOP_REQUEST_FLAG_OUTPUT_CONTEXT);
511 req->header.type = cpu_to_le32(IOP_REQUEST_TYPE_SET_CONFIG);
512 req->header.size =
513 cpu_to_le32(sizeof(struct hpt_iop_request_set_config));
514 req->header.result = cpu_to_le32(IOP_RESULT_PENDING);
515 req->header.context = cpu_to_le32(IOP_REQUEST_TYPE_SET_CONFIG<<5);
516 req->header.context_hi32 = 0;
517
518 if (iop_send_sync_request_mv(hba, 0, 20000)) {
519 dprintk("Set config send cmd failed\n");
520 return -1;
521 }
522
523 return 0;
524 }
525
526 static int iop_set_config_mvfrey(struct hptiop_hba *hba,
527 struct hpt_iop_request_set_config *config)
528 {
529 struct hpt_iop_request_set_config *req =
530 hba->u.mvfrey.internal_req.req_virt;
531
532 memcpy(req, config, sizeof(struct hpt_iop_request_set_config));
533 req->header.flags = cpu_to_le32(IOP_REQUEST_FLAG_OUTPUT_CONTEXT);
534 req->header.type = cpu_to_le32(IOP_REQUEST_TYPE_SET_CONFIG);
535 req->header.size =
536 cpu_to_le32(sizeof(struct hpt_iop_request_set_config));
537 req->header.result = cpu_to_le32(IOP_RESULT_PENDING);
538 req->header.context = cpu_to_le32(IOP_REQUEST_TYPE_SET_CONFIG<<5);
539 req->header.context_hi32 = 0;
540
541 if (iop_send_sync_request_mvfrey(hba, 0, 20000)) {
542 dprintk("Set config send cmd failed\n");
543 return -1;
544 }
545
546 return 0;
547 }
548
549 static void hptiop_enable_intr_itl(struct hptiop_hba *hba)
550 {
551 writel(~(IOPMU_OUTBOUND_INT_POSTQUEUE | IOPMU_OUTBOUND_INT_MSG0),
552 &hba->u.itl.iop->outbound_intmask);
553 }
554
555 static void hptiop_enable_intr_mv(struct hptiop_hba *hba)
556 {
557 writel(MVIOP_MU_OUTBOUND_INT_POSTQUEUE | MVIOP_MU_OUTBOUND_INT_MSG,
558 &hba->u.mv.regs->outbound_intmask);
559 }
560
561 static void hptiop_enable_intr_mvfrey(struct hptiop_hba *hba)
562 {
563 writel(CPU_TO_F0_DRBL_MSG_BIT, &(hba->u.mvfrey.mu->f0_doorbell_enable));
564 writel(0x1, &(hba->u.mvfrey.mu->isr_enable));
565 writel(0x1010, &(hba->u.mvfrey.mu->pcie_f0_int_enable));
566 }
567
568 static int hptiop_initialize_iop(struct hptiop_hba *hba)
569 {
570 /* enable interrupts */
571 hba->ops->enable_intr(hba);
572
573 hba->initialized = 1;
574
575 /* start background tasks */
576 if (iop_send_sync_msg(hba,
577 IOPMU_INBOUND_MSG0_START_BACKGROUND_TASK, 5000)) {
578 printk(KERN_ERR "scsi%d: fail to start background task\n",
579 hba->host->host_no);
580 return -1;
581 }
582 return 0;
583 }
584
585 static void __iomem *hptiop_map_pci_bar(struct hptiop_hba *hba, int index)
586 {
587 u32 mem_base_phy, length;
588 void __iomem *mem_base_virt;
589
590 struct pci_dev *pcidev = hba->pcidev;
591
592
593 if (!(pci_resource_flags(pcidev, index) & IORESOURCE_MEM)) {
594 printk(KERN_ERR "scsi%d: pci resource invalid\n",
595 hba->host->host_no);
596 return NULL;
597 }
598
599 mem_base_phy = pci_resource_start(pcidev, index);
600 length = pci_resource_len(pcidev, index);
601 mem_base_virt = ioremap(mem_base_phy, length);
602
603 if (!mem_base_virt) {
604 printk(KERN_ERR "scsi%d: Fail to ioremap memory space\n",
605 hba->host->host_no);
606 return NULL;
607 }
608 return mem_base_virt;
609 }
610
611 static int hptiop_map_pci_bar_itl(struct hptiop_hba *hba)
612 {
613 struct pci_dev *pcidev = hba->pcidev;
614 hba->u.itl.iop = hptiop_map_pci_bar(hba, 0);
615 if (hba->u.itl.iop == NULL)
616 return -1;
617 if ((pcidev->device & 0xff00) == 0x4400) {
618 hba->u.itl.plx = hba->u.itl.iop;
619 hba->u.itl.iop = hptiop_map_pci_bar(hba, 2);
620 if (hba->u.itl.iop == NULL) {
621 iounmap(hba->u.itl.plx);
622 return -1;
623 }
624 }
625 return 0;
626 }
627
628 static void hptiop_unmap_pci_bar_itl(struct hptiop_hba *hba)
629 {
630 if (hba->u.itl.plx)
631 iounmap(hba->u.itl.plx);
632 iounmap(hba->u.itl.iop);
633 }
634
635 static int hptiop_map_pci_bar_mv(struct hptiop_hba *hba)
636 {
637 hba->u.mv.regs = hptiop_map_pci_bar(hba, 0);
638 if (hba->u.mv.regs == NULL)
639 return -1;
640
641 hba->u.mv.mu = hptiop_map_pci_bar(hba, 2);
642 if (hba->u.mv.mu == NULL) {
643 iounmap(hba->u.mv.regs);
644 return -1;
645 }
646
647 return 0;
648 }
649
650 static int hptiop_map_pci_bar_mvfrey(struct hptiop_hba *hba)
651 {
652 hba->u.mvfrey.config = hptiop_map_pci_bar(hba, 0);
653 if (hba->u.mvfrey.config == NULL)
654 return -1;
655
656 hba->u.mvfrey.mu = hptiop_map_pci_bar(hba, 2);
657 if (hba->u.mvfrey.mu == NULL) {
658 iounmap(hba->u.mvfrey.config);
659 return -1;
660 }
661
662 return 0;
663 }
664
665 static void hptiop_unmap_pci_bar_mv(struct hptiop_hba *hba)
666 {
667 iounmap(hba->u.mv.regs);
668 iounmap(hba->u.mv.mu);
669 }
670
671 static void hptiop_unmap_pci_bar_mvfrey(struct hptiop_hba *hba)
672 {
673 iounmap(hba->u.mvfrey.config);
674 iounmap(hba->u.mvfrey.mu);
675 }
676
677 static void hptiop_message_callback(struct hptiop_hba *hba, u32 msg)
678 {
679 dprintk("iop message 0x%x\n", msg);
680
681 if (msg == IOPMU_INBOUND_MSG0_NOP ||
682 msg == IOPMU_INBOUND_MSG0_RESET_COMM)
683 hba->msg_done = 1;
684
685 if (!hba->initialized)
686 return;
687
688 if (msg == IOPMU_INBOUND_MSG0_RESET) {
689 atomic_set(&hba->resetting, 0);
690 wake_up(&hba->reset_wq);
691 }
692 else if (msg <= IOPMU_INBOUND_MSG0_MAX)
693 hba->msg_done = 1;
694 }
695
696 static struct hptiop_request *get_req(struct hptiop_hba *hba)
697 {
698 struct hptiop_request *ret;
699
700 dprintk("get_req : req=%p\n", hba->req_list);
701
702 ret = hba->req_list;
703 if (ret)
704 hba->req_list = ret->next;
705
706 return ret;
707 }
708
709 static void free_req(struct hptiop_hba *hba, struct hptiop_request *req)
710 {
711 dprintk("free_req(%d, %p)\n", req->index, req);
712 req->next = hba->req_list;
713 hba->req_list = req;
714 }
715
716 static void hptiop_finish_scsi_req(struct hptiop_hba *hba, u32 tag,
717 struct hpt_iop_request_scsi_command *req)
718 {
719 struct scsi_cmnd *scp;
720
721 dprintk("hptiop_finish_scsi_req: req=%p, type=%d, "
722 "result=%d, context=0x%x tag=%d\n",
723 req, req->header.type, req->header.result,
724 req->header.context, tag);
725
726 BUG_ON(!req->header.result);
727 BUG_ON(req->header.type != cpu_to_le32(IOP_REQUEST_TYPE_SCSI_COMMAND));
728
729 scp = hba->reqs[tag].scp;
730
731 if (HPT_SCP(scp)->mapped)
732 scsi_dma_unmap(scp);
733
734 switch (le32_to_cpu(req->header.result)) {
735 case IOP_RESULT_SUCCESS:
736 scsi_set_resid(scp,
737 scsi_bufflen(scp) - le32_to_cpu(req->dataxfer_length));
738 scp->result = (DID_OK<<16);
739 break;
740 case IOP_RESULT_BAD_TARGET:
741 scp->result = (DID_BAD_TARGET<<16);
742 break;
743 case IOP_RESULT_BUSY:
744 scp->result = (DID_BUS_BUSY<<16);
745 break;
746 case IOP_RESULT_RESET:
747 scp->result = (DID_RESET<<16);
748 break;
749 case IOP_RESULT_FAIL:
750 scp->result = (DID_ERROR<<16);
751 break;
752 case IOP_RESULT_INVALID_REQUEST:
753 scp->result = (DID_ABORT<<16);
754 break;
755 case IOP_RESULT_CHECK_CONDITION:
756 scsi_set_resid(scp,
757 scsi_bufflen(scp) - le32_to_cpu(req->dataxfer_length));
758 scp->result = SAM_STAT_CHECK_CONDITION;
759 memcpy(scp->sense_buffer, &req->sg_list, SCSI_SENSE_BUFFERSIZE);
760 goto skip_resid;
761
762 default:
763 scp->result = DRIVER_INVALID << 24 | DID_ABORT << 16;
764 break;
765 }
766
767 scsi_set_resid(scp,
768 scsi_bufflen(scp) - le32_to_cpu(req->dataxfer_length));
769
770 skip_resid:
771 dprintk("scsi_done(%p)\n", scp);
772 scp->scsi_done(scp);
773 free_req(hba, &hba->reqs[tag]);
774 }
775
776 static void hptiop_host_request_callback_itl(struct hptiop_hba *hba, u32 _tag)
777 {
778 struct hpt_iop_request_scsi_command *req;
779 u32 tag;
780
781 if (hba->iopintf_v2) {
782 tag = _tag & ~IOPMU_QUEUE_REQUEST_RESULT_BIT;
783 req = hba->reqs[tag].req_virt;
784 if (likely(_tag & IOPMU_QUEUE_REQUEST_RESULT_BIT))
785 req->header.result = cpu_to_le32(IOP_RESULT_SUCCESS);
786 } else {
787 tag = _tag;
788 req = hba->reqs[tag].req_virt;
789 }
790
791 hptiop_finish_scsi_req(hba, tag, req);
792 }
793
794 static void hptiop_iop_request_callback_itl(struct hptiop_hba *hba, u32 tag)
795 {
796 struct hpt_iop_request_header __iomem *req;
797 struct hpt_iop_request_ioctl_command __iomem *p;
798 struct hpt_ioctl_k *arg;
799
800 req = (struct hpt_iop_request_header __iomem *)
801 ((unsigned long)hba->u.itl.iop + tag);
802 dprintk("hptiop_iop_request_callback_itl: req=%p, type=%d, "
803 "result=%d, context=0x%x tag=%d\n",
804 req, readl(&req->type), readl(&req->result),
805 readl(&req->context), tag);
806
807 BUG_ON(!readl(&req->result));
808 BUG_ON(readl(&req->type) != IOP_REQUEST_TYPE_IOCTL_COMMAND);
809
810 p = (struct hpt_iop_request_ioctl_command __iomem *)req;
811 arg = (struct hpt_ioctl_k *)(unsigned long)
812 (readl(&req->context) |
813 ((u64)readl(&req->context_hi32)<<32));
814
815 if (readl(&req->result) == IOP_RESULT_SUCCESS) {
816 arg->result = HPT_IOCTL_RESULT_OK;
817
818 if (arg->outbuf_size)
819 memcpy_fromio(arg->outbuf,
820 &p->buf[(readl(&p->inbuf_size) + 3)& ~3],
821 arg->outbuf_size);
822
823 if (arg->bytes_returned)
824 *arg->bytes_returned = arg->outbuf_size;
825 }
826 else
827 arg->result = HPT_IOCTL_RESULT_FAILED;
828
829 arg->done(arg);
830 writel(tag, &hba->u.itl.iop->outbound_queue);
831 }
832
833 static irqreturn_t hptiop_intr(int irq, void *dev_id)
834 {
835 struct hptiop_hba *hba = dev_id;
836 int handled;
837 unsigned long flags;
838
839 spin_lock_irqsave(hba->host->host_lock, flags);
840 handled = hba->ops->iop_intr(hba);
841 spin_unlock_irqrestore(hba->host->host_lock, flags);
842
843 return handled;
844 }
845
846 static int hptiop_buildsgl(struct scsi_cmnd *scp, struct hpt_iopsg *psg)
847 {
848 struct Scsi_Host *host = scp->device->host;
849 struct hptiop_hba *hba = (struct hptiop_hba *)host->hostdata;
850 struct scatterlist *sg;
851 int idx, nseg;
852
853 nseg = scsi_dma_map(scp);
854 BUG_ON(nseg < 0);
855 if (!nseg)
856 return 0;
857
858 HPT_SCP(scp)->sgcnt = nseg;
859 HPT_SCP(scp)->mapped = 1;
860
861 BUG_ON(HPT_SCP(scp)->sgcnt > hba->max_sg_descriptors);
862
863 scsi_for_each_sg(scp, sg, HPT_SCP(scp)->sgcnt, idx) {
864 psg[idx].pci_address = cpu_to_le64(sg_dma_address(sg)) |
865 hba->ops->host_phy_flag;
866 psg[idx].size = cpu_to_le32(sg_dma_len(sg));
867 psg[idx].eot = (idx == HPT_SCP(scp)->sgcnt - 1) ?
868 cpu_to_le32(1) : 0;
869 }
870 return HPT_SCP(scp)->sgcnt;
871 }
872
873 static void hptiop_post_req_itl(struct hptiop_hba *hba,
874 struct hptiop_request *_req)
875 {
876 struct hpt_iop_request_header *reqhdr = _req->req_virt;
877
878 reqhdr->context = cpu_to_le32(IOPMU_QUEUE_ADDR_HOST_BIT |
879 (u32)_req->index);
880 reqhdr->context_hi32 = 0;
881
882 if (hba->iopintf_v2) {
883 u32 size, size_bits;
884
885 size = le32_to_cpu(reqhdr->size);
886 if (size < 256)
887 size_bits = IOPMU_QUEUE_REQUEST_SIZE_BIT;
888 else if (size < 512)
889 size_bits = IOPMU_QUEUE_ADDR_HOST_BIT;
890 else
891 size_bits = IOPMU_QUEUE_REQUEST_SIZE_BIT |
892 IOPMU_QUEUE_ADDR_HOST_BIT;
893 writel(_req->req_shifted_phy | size_bits,
894 &hba->u.itl.iop->inbound_queue);
895 } else
896 writel(_req->req_shifted_phy | IOPMU_QUEUE_ADDR_HOST_BIT,
897 &hba->u.itl.iop->inbound_queue);
898 }
899
900 static void hptiop_post_req_mv(struct hptiop_hba *hba,
901 struct hptiop_request *_req)
902 {
903 struct hpt_iop_request_header *reqhdr = _req->req_virt;
904 u32 size, size_bit;
905
906 reqhdr->context = cpu_to_le32(_req->index<<8 |
907 IOP_REQUEST_TYPE_SCSI_COMMAND<<5);
908 reqhdr->context_hi32 = 0;
909 size = le32_to_cpu(reqhdr->size);
910
911 if (size <= 256)
912 size_bit = 0;
913 else if (size <= 256*2)
914 size_bit = 1;
915 else if (size <= 256*3)
916 size_bit = 2;
917 else
918 size_bit = 3;
919
920 mv_inbound_write((_req->req_shifted_phy << 5) |
921 MVIOP_MU_QUEUE_ADDR_HOST_BIT | size_bit, hba);
922 }
923
924 static void hptiop_post_req_mvfrey(struct hptiop_hba *hba,
925 struct hptiop_request *_req)
926 {
927 struct hpt_iop_request_header *reqhdr = _req->req_virt;
928 u32 index;
929
930 reqhdr->flags |= cpu_to_le32(IOP_REQUEST_FLAG_OUTPUT_CONTEXT |
931 IOP_REQUEST_FLAG_ADDR_BITS |
932 ((_req->req_shifted_phy >> 11) & 0xffff0000));
933 reqhdr->context = cpu_to_le32(IOPMU_QUEUE_ADDR_HOST_BIT |
934 (_req->index << 4) | reqhdr->type);
935 reqhdr->context_hi32 = cpu_to_le32((_req->req_shifted_phy << 5) &
936 0xffffffff);
937
938 hba->u.mvfrey.inlist_wptr++;
939 index = hba->u.mvfrey.inlist_wptr & 0x3fff;
940
941 if (index == hba->u.mvfrey.list_count) {
942 index = 0;
943 hba->u.mvfrey.inlist_wptr &= ~0x3fff;
944 hba->u.mvfrey.inlist_wptr ^= CL_POINTER_TOGGLE;
945 }
946
947 hba->u.mvfrey.inlist[index].addr =
948 (dma_addr_t)_req->req_shifted_phy << 5;
949 hba->u.mvfrey.inlist[index].intrfc_len = (reqhdr->size + 3) / 4;
950 writel(hba->u.mvfrey.inlist_wptr,
951 &(hba->u.mvfrey.mu->inbound_write_ptr));
952 readl(&(hba->u.mvfrey.mu->inbound_write_ptr));
953 }
954
955 static int hptiop_reset_comm_itl(struct hptiop_hba *hba)
956 {
957 return 0;
958 }
959
960 static int hptiop_reset_comm_mv(struct hptiop_hba *hba)
961 {
962 return 0;
963 }
964
965 static int hptiop_reset_comm_mvfrey(struct hptiop_hba *hba)
966 {
967 u32 list_count = hba->u.mvfrey.list_count;
968
969 if (iop_send_sync_msg(hba, IOPMU_INBOUND_MSG0_RESET_COMM, 3000))
970 return -1;
971
972 /* wait 100ms for MCU ready */
973 msleep(100);
974
975 writel(cpu_to_le32(hba->u.mvfrey.inlist_phy & 0xffffffff),
976 &(hba->u.mvfrey.mu->inbound_base));
977 writel(cpu_to_le32((hba->u.mvfrey.inlist_phy >> 16) >> 16),
978 &(hba->u.mvfrey.mu->inbound_base_high));
979
980 writel(cpu_to_le32(hba->u.mvfrey.outlist_phy & 0xffffffff),
981 &(hba->u.mvfrey.mu->outbound_base));
982 writel(cpu_to_le32((hba->u.mvfrey.outlist_phy >> 16) >> 16),
983 &(hba->u.mvfrey.mu->outbound_base_high));
984
985 writel(cpu_to_le32(hba->u.mvfrey.outlist_cptr_phy & 0xffffffff),
986 &(hba->u.mvfrey.mu->outbound_shadow_base));
987 writel(cpu_to_le32((hba->u.mvfrey.outlist_cptr_phy >> 16) >> 16),
988 &(hba->u.mvfrey.mu->outbound_shadow_base_high));
989
990 hba->u.mvfrey.inlist_wptr = (list_count - 1) | CL_POINTER_TOGGLE;
991 *hba->u.mvfrey.outlist_cptr = (list_count - 1) | CL_POINTER_TOGGLE;
992 hba->u.mvfrey.outlist_rptr = list_count - 1;
993 return 0;
994 }
995
996 static int hptiop_queuecommand_lck(struct scsi_cmnd *scp,
997 void (*done)(struct scsi_cmnd *))
998 {
999 struct Scsi_Host *host = scp->device->host;
1000 struct hptiop_hba *hba = (struct hptiop_hba *)host->hostdata;
1001 struct hpt_iop_request_scsi_command *req;
1002 int sg_count = 0;
1003 struct hptiop_request *_req;
1004
1005 BUG_ON(!done);
1006 scp->scsi_done = done;
1007
1008 _req = get_req(hba);
1009 if (_req == NULL) {
1010 dprintk("hptiop_queuecmd : no free req\n");
1011 return SCSI_MLQUEUE_HOST_BUSY;
1012 }
1013
1014 _req->scp = scp;
1015
1016 dprintk("hptiop_queuecmd(scp=%p) %d/%d/%d/%llu cdb=(%08x-%08x-%08x-%08x) "
1017 "req_index=%d, req=%p\n",
1018 scp,
1019 host->host_no, scp->device->channel,
1020 scp->device->id, scp->device->lun,
1021 cpu_to_be32(((u32 *)scp->cmnd)[0]),
1022 cpu_to_be32(((u32 *)scp->cmnd)[1]),
1023 cpu_to_be32(((u32 *)scp->cmnd)[2]),
1024 cpu_to_be32(((u32 *)scp->cmnd)[3]),
1025 _req->index, _req->req_virt);
1026
1027 scp->result = 0;
1028
1029 if (scp->device->channel ||
1030 (scp->device->id > hba->max_devices) ||
1031 ((scp->device->id == (hba->max_devices-1)) && scp->device->lun)) {
1032 scp->result = DID_BAD_TARGET << 16;
1033 free_req(hba, _req);
1034 goto cmd_done;
1035 }
1036
1037 req = _req->req_virt;
1038
1039 /* build S/G table */
1040 sg_count = hptiop_buildsgl(scp, req->sg_list);
1041 if (!sg_count)
1042 HPT_SCP(scp)->mapped = 0;
1043
1044 req->header.flags = cpu_to_le32(IOP_REQUEST_FLAG_OUTPUT_CONTEXT);
1045 req->header.type = cpu_to_le32(IOP_REQUEST_TYPE_SCSI_COMMAND);
1046 req->header.result = cpu_to_le32(IOP_RESULT_PENDING);
1047 req->dataxfer_length = cpu_to_le32(scsi_bufflen(scp));
1048 req->channel = scp->device->channel;
1049 req->target = scp->device->id;
1050 req->lun = scp->device->lun;
1051 req->header.size = cpu_to_le32(
1052 sizeof(struct hpt_iop_request_scsi_command)
1053 - sizeof(struct hpt_iopsg)
1054 + sg_count * sizeof(struct hpt_iopsg));
1055
1056 memcpy(req->cdb, scp->cmnd, sizeof(req->cdb));
1057 hba->ops->post_req(hba, _req);
1058 return 0;
1059
1060 cmd_done:
1061 dprintk("scsi_done(scp=%p)\n", scp);
1062 scp->scsi_done(scp);
1063 return 0;
1064 }
1065
1066 static DEF_SCSI_QCMD(hptiop_queuecommand)
1067
1068 static const char *hptiop_info(struct Scsi_Host *host)
1069 {
1070 return driver_name_long;
1071 }
1072
1073 static int hptiop_reset_hba(struct hptiop_hba *hba)
1074 {
1075 if (atomic_xchg(&hba->resetting, 1) == 0) {
1076 atomic_inc(&hba->reset_count);
1077 hba->ops->post_msg(hba, IOPMU_INBOUND_MSG0_RESET);
1078 }
1079
1080 wait_event_timeout(hba->reset_wq,
1081 atomic_read(&hba->resetting) == 0, 60 * HZ);
1082
1083 if (atomic_read(&hba->resetting)) {
1084 /* IOP is in unknown state, abort reset */
1085 printk(KERN_ERR "scsi%d: reset failed\n", hba->host->host_no);
1086 return -1;
1087 }
1088
1089 if (iop_send_sync_msg(hba,
1090 IOPMU_INBOUND_MSG0_START_BACKGROUND_TASK, 5000)) {
1091 dprintk("scsi%d: fail to start background task\n",
1092 hba->host->host_no);
1093 }
1094
1095 return 0;
1096 }
1097
1098 static int hptiop_reset(struct scsi_cmnd *scp)
1099 {
1100 struct hptiop_hba * hba = (struct hptiop_hba *)scp->device->host->hostdata;
1101
1102 printk(KERN_WARNING "hptiop_reset(%d/%d/%d)\n",
1103 scp->device->host->host_no, -1, -1);
1104
1105 return hptiop_reset_hba(hba)? FAILED : SUCCESS;
1106 }
1107
1108 static int hptiop_adjust_disk_queue_depth(struct scsi_device *sdev,
1109 int queue_depth)
1110 {
1111 struct hptiop_hba *hba = (struct hptiop_hba *)sdev->host->hostdata;
1112
1113 if (queue_depth > hba->max_requests)
1114 queue_depth = hba->max_requests;
1115 return scsi_change_queue_depth(sdev, queue_depth);
1116 }
1117
1118 static ssize_t hptiop_show_version(struct device *dev,
1119 struct device_attribute *attr, char *buf)
1120 {
1121 return snprintf(buf, PAGE_SIZE, "%s\n", driver_ver);
1122 }
1123
1124 static ssize_t hptiop_show_fw_version(struct device *dev,
1125 struct device_attribute *attr, char *buf)
1126 {
1127 struct Scsi_Host *host = class_to_shost(dev);
1128 struct hptiop_hba *hba = (struct hptiop_hba *)host->hostdata;
1129
1130 return snprintf(buf, PAGE_SIZE, "%d.%d.%d.%d\n",
1131 hba->firmware_version >> 24,
1132 (hba->firmware_version >> 16) & 0xff,
1133 (hba->firmware_version >> 8) & 0xff,
1134 hba->firmware_version & 0xff);
1135 }
1136
1137 static struct device_attribute hptiop_attr_version = {
1138 .attr = {
1139 .name = "driver-version",
1140 .mode = S_IRUGO,
1141 },
1142 .show = hptiop_show_version,
1143 };
1144
1145 static struct device_attribute hptiop_attr_fw_version = {
1146 .attr = {
1147 .name = "firmware-version",
1148 .mode = S_IRUGO,
1149 },
1150 .show = hptiop_show_fw_version,
1151 };
1152
1153 static struct device_attribute *hptiop_attrs[] = {
1154 &hptiop_attr_version,
1155 &hptiop_attr_fw_version,
1156 NULL
1157 };
1158
1159 static int hptiop_slave_config(struct scsi_device *sdev)
1160 {
1161 if (sdev->type == TYPE_TAPE)
1162 blk_queue_max_hw_sectors(sdev->request_queue, 8192);
1163
1164 return 0;
1165 }
1166
1167 static struct scsi_host_template driver_template = {
1168 .module = THIS_MODULE,
1169 .name = driver_name,
1170 .queuecommand = hptiop_queuecommand,
1171 .eh_host_reset_handler = hptiop_reset,
1172 .info = hptiop_info,
1173 .emulated = 0,
1174 .proc_name = driver_name,
1175 .shost_attrs = hptiop_attrs,
1176 .slave_configure = hptiop_slave_config,
1177 .this_id = -1,
1178 .change_queue_depth = hptiop_adjust_disk_queue_depth,
1179 };
1180
1181 static int hptiop_internal_memalloc_itl(struct hptiop_hba *hba)
1182 {
1183 return 0;
1184 }
1185
1186 static int hptiop_internal_memalloc_mv(struct hptiop_hba *hba)
1187 {
1188 hba->u.mv.internal_req = dma_alloc_coherent(&hba->pcidev->dev,
1189 0x800, &hba->u.mv.internal_req_phy, GFP_KERNEL);
1190 if (hba->u.mv.internal_req)
1191 return 0;
1192 else
1193 return -1;
1194 }
1195
1196 static int hptiop_internal_memalloc_mvfrey(struct hptiop_hba *hba)
1197 {
1198 u32 list_count = readl(&hba->u.mvfrey.mu->inbound_conf_ctl);
1199 char *p;
1200 dma_addr_t phy;
1201
1202 BUG_ON(hba->max_request_size == 0);
1203
1204 if (list_count == 0) {
1205 BUG_ON(1);
1206 return -1;
1207 }
1208
1209 list_count >>= 16;
1210
1211 hba->u.mvfrey.list_count = list_count;
1212 hba->u.mvfrey.internal_mem_size = 0x800 +
1213 list_count * sizeof(struct mvfrey_inlist_entry) +
1214 list_count * sizeof(struct mvfrey_outlist_entry) +
1215 sizeof(int);
1216
1217 p = dma_alloc_coherent(&hba->pcidev->dev,
1218 hba->u.mvfrey.internal_mem_size, &phy, GFP_KERNEL);
1219 if (!p)
1220 return -1;
1221
1222 hba->u.mvfrey.internal_req.req_virt = p;
1223 hba->u.mvfrey.internal_req.req_shifted_phy = phy >> 5;
1224 hba->u.mvfrey.internal_req.scp = NULL;
1225 hba->u.mvfrey.internal_req.next = NULL;
1226
1227 p += 0x800;
1228 phy += 0x800;
1229
1230 hba->u.mvfrey.inlist = (struct mvfrey_inlist_entry *)p;
1231 hba->u.mvfrey.inlist_phy = phy;
1232
1233 p += list_count * sizeof(struct mvfrey_inlist_entry);
1234 phy += list_count * sizeof(struct mvfrey_inlist_entry);
1235
1236 hba->u.mvfrey.outlist = (struct mvfrey_outlist_entry *)p;
1237 hba->u.mvfrey.outlist_phy = phy;
1238
1239 p += list_count * sizeof(struct mvfrey_outlist_entry);
1240 phy += list_count * sizeof(struct mvfrey_outlist_entry);
1241
1242 hba->u.mvfrey.outlist_cptr = (__le32 *)p;
1243 hba->u.mvfrey.outlist_cptr_phy = phy;
1244
1245 return 0;
1246 }
1247
1248 static int hptiop_internal_memfree_itl(struct hptiop_hba *hba)
1249 {
1250 return 0;
1251 }
1252
1253 static int hptiop_internal_memfree_mv(struct hptiop_hba *hba)
1254 {
1255 if (hba->u.mv.internal_req) {
1256 dma_free_coherent(&hba->pcidev->dev, 0x800,
1257 hba->u.mv.internal_req, hba->u.mv.internal_req_phy);
1258 return 0;
1259 } else
1260 return -1;
1261 }
1262
1263 static int hptiop_internal_memfree_mvfrey(struct hptiop_hba *hba)
1264 {
1265 if (hba->u.mvfrey.internal_req.req_virt) {
1266 dma_free_coherent(&hba->pcidev->dev,
1267 hba->u.mvfrey.internal_mem_size,
1268 hba->u.mvfrey.internal_req.req_virt,
1269 (dma_addr_t)
1270 hba->u.mvfrey.internal_req.req_shifted_phy << 5);
1271 return 0;
1272 } else
1273 return -1;
1274 }
1275
1276 static int hptiop_probe(struct pci_dev *pcidev, const struct pci_device_id *id)
1277 {
1278 struct Scsi_Host *host = NULL;
1279 struct hptiop_hba *hba;
1280 struct hptiop_adapter_ops *iop_ops;
1281 struct hpt_iop_request_get_config iop_config;
1282 struct hpt_iop_request_set_config set_config;
1283 dma_addr_t start_phy;
1284 void *start_virt;
1285 u32 offset, i, req_size;
1286 int rc;
1287
1288 dprintk("hptiop_probe(%p)\n", pcidev);
1289
1290 if (pci_enable_device(pcidev)) {
1291 printk(KERN_ERR "hptiop: fail to enable pci device\n");
1292 return -ENODEV;
1293 }
1294
1295 printk(KERN_INFO "adapter at PCI %d:%d:%d, IRQ %d\n",
1296 pcidev->bus->number, pcidev->devfn >> 3, pcidev->devfn & 7,
1297 pcidev->irq);
1298
1299 pci_set_master(pcidev);
1300
1301 /* Enable 64bit DMA if possible */
1302 iop_ops = (struct hptiop_adapter_ops *)id->driver_data;
1303 rc = dma_set_mask(&pcidev->dev,
1304 DMA_BIT_MASK(iop_ops->hw_dma_bit_mask));
1305 if (rc)
1306 rc = dma_set_mask(&pcidev->dev, DMA_BIT_MASK(32));
1307
1308 if (rc) {
1309 printk(KERN_ERR "hptiop: fail to set dma_mask\n");
1310 goto disable_pci_device;
1311 }
1312
1313 if (pci_request_regions(pcidev, driver_name)) {
1314 printk(KERN_ERR "hptiop: pci_request_regions failed\n");
1315 goto disable_pci_device;
1316 }
1317
1318 host = scsi_host_alloc(&driver_template, sizeof(struct hptiop_hba));
1319 if (!host) {
1320 printk(KERN_ERR "hptiop: fail to alloc scsi host\n");
1321 goto free_pci_regions;
1322 }
1323
1324 hba = (struct hptiop_hba *)host->hostdata;
1325 memset(hba, 0, sizeof(struct hptiop_hba));
1326
1327 hba->ops = iop_ops;
1328 hba->pcidev = pcidev;
1329 hba->host = host;
1330 hba->initialized = 0;
1331 hba->iopintf_v2 = 0;
1332
1333 atomic_set(&hba->resetting, 0);
1334 atomic_set(&hba->reset_count, 0);
1335
1336 init_waitqueue_head(&hba->reset_wq);
1337 init_waitqueue_head(&hba->ioctl_wq);
1338
1339 host->max_lun = 128;
1340 host->max_channel = 0;
1341 host->io_port = 0;
1342 host->n_io_port = 0;
1343 host->irq = pcidev->irq;
1344
1345 if (hba->ops->map_pci_bar(hba))
1346 goto free_scsi_host;
1347
1348 if (hba->ops->iop_wait_ready(hba, 20000)) {
1349 printk(KERN_ERR "scsi%d: firmware not ready\n",
1350 hba->host->host_no);
1351 goto unmap_pci_bar;
1352 }
1353
1354 if (hba->ops->family == MV_BASED_IOP) {
1355 if (hba->ops->internal_memalloc(hba)) {
1356 printk(KERN_ERR "scsi%d: internal_memalloc failed\n",
1357 hba->host->host_no);
1358 goto unmap_pci_bar;
1359 }
1360 }
1361
1362 if (hba->ops->get_config(hba, &iop_config)) {
1363 printk(KERN_ERR "scsi%d: get config failed\n",
1364 hba->host->host_no);
1365 goto unmap_pci_bar;
1366 }
1367
1368 hba->max_requests = min(le32_to_cpu(iop_config.max_requests),
1369 HPTIOP_MAX_REQUESTS);
1370 hba->max_devices = le32_to_cpu(iop_config.max_devices);
1371 hba->max_request_size = le32_to_cpu(iop_config.request_size);
1372 hba->max_sg_descriptors = le32_to_cpu(iop_config.max_sg_count);
1373 hba->firmware_version = le32_to_cpu(iop_config.firmware_version);
1374 hba->interface_version = le32_to_cpu(iop_config.interface_version);
1375 hba->sdram_size = le32_to_cpu(iop_config.sdram_size);
1376
1377 if (hba->ops->family == MVFREY_BASED_IOP) {
1378 if (hba->ops->internal_memalloc(hba)) {
1379 printk(KERN_ERR "scsi%d: internal_memalloc failed\n",
1380 hba->host->host_no);
1381 goto unmap_pci_bar;
1382 }
1383 if (hba->ops->reset_comm(hba)) {
1384 printk(KERN_ERR "scsi%d: reset comm failed\n",
1385 hba->host->host_no);
1386 goto unmap_pci_bar;
1387 }
1388 }
1389
1390 if (hba->firmware_version > 0x01020000 ||
1391 hba->interface_version > 0x01020000)
1392 hba->iopintf_v2 = 1;
1393
1394 host->max_sectors = le32_to_cpu(iop_config.data_transfer_length) >> 9;
1395 host->max_id = le32_to_cpu(iop_config.max_devices);
1396 host->sg_tablesize = le32_to_cpu(iop_config.max_sg_count);
1397 host->can_queue = le32_to_cpu(iop_config.max_requests);
1398 host->cmd_per_lun = le32_to_cpu(iop_config.max_requests);
1399 host->max_cmd_len = 16;
1400
1401 req_size = sizeof(struct hpt_iop_request_scsi_command)
1402 + sizeof(struct hpt_iopsg) * (hba->max_sg_descriptors - 1);
1403 if ((req_size & 0x1f) != 0)
1404 req_size = (req_size + 0x1f) & ~0x1f;
1405
1406 memset(&set_config, 0, sizeof(struct hpt_iop_request_set_config));
1407 set_config.iop_id = cpu_to_le32(host->host_no);
1408 set_config.vbus_id = cpu_to_le16(host->host_no);
1409 set_config.max_host_request_size = cpu_to_le16(req_size);
1410
1411 if (hba->ops->set_config(hba, &set_config)) {
1412 printk(KERN_ERR "scsi%d: set config failed\n",
1413 hba->host->host_no);
1414 goto unmap_pci_bar;
1415 }
1416
1417 pci_set_drvdata(pcidev, host);
1418
1419 if (request_irq(pcidev->irq, hptiop_intr, IRQF_SHARED,
1420 driver_name, hba)) {
1421 printk(KERN_ERR "scsi%d: request irq %d failed\n",
1422 hba->host->host_no, pcidev->irq);
1423 goto unmap_pci_bar;
1424 }
1425
1426 /* Allocate request mem */
1427
1428 dprintk("req_size=%d, max_requests=%d\n", req_size, hba->max_requests);
1429
1430 hba->req_size = req_size;
1431 hba->req_list = NULL;
1432
1433 for (i = 0; i < hba->max_requests; i++) {
1434 start_virt = dma_alloc_coherent(&pcidev->dev,
1435 hba->req_size + 0x20,
1436 &start_phy, GFP_KERNEL);
1437
1438 if (!start_virt) {
1439 printk(KERN_ERR "scsi%d: fail to alloc request mem\n",
1440 hba->host->host_no);
1441 goto free_request_mem;
1442 }
1443
1444 hba->dma_coherent[i] = start_virt;
1445 hba->dma_coherent_handle[i] = start_phy;
1446
1447 if ((start_phy & 0x1f) != 0) {
1448 offset = ((start_phy + 0x1f) & ~0x1f) - start_phy;
1449 start_phy += offset;
1450 start_virt += offset;
1451 }
1452
1453 hba->reqs[i].next = NULL;
1454 hba->reqs[i].req_virt = start_virt;
1455 hba->reqs[i].req_shifted_phy = start_phy >> 5;
1456 hba->reqs[i].index = i;
1457 free_req(hba, &hba->reqs[i]);
1458 }
1459
1460 /* Enable Interrupt and start background task */
1461 if (hptiop_initialize_iop(hba))
1462 goto free_request_mem;
1463
1464 if (scsi_add_host(host, &pcidev->dev)) {
1465 printk(KERN_ERR "scsi%d: scsi_add_host failed\n",
1466 hba->host->host_no);
1467 goto free_request_mem;
1468 }
1469
1470 scsi_scan_host(host);
1471
1472 dprintk("scsi%d: hptiop_probe successfully\n", hba->host->host_no);
1473 return 0;
1474
1475 free_request_mem:
1476 for (i = 0; i < hba->max_requests; i++) {
1477 if (hba->dma_coherent[i] && hba->dma_coherent_handle[i])
1478 dma_free_coherent(&hba->pcidev->dev,
1479 hba->req_size + 0x20,
1480 hba->dma_coherent[i],
1481 hba->dma_coherent_handle[i]);
1482 else
1483 break;
1484 }
1485
1486 free_irq(hba->pcidev->irq, hba);
1487
1488 unmap_pci_bar:
1489 hba->ops->internal_memfree(hba);
1490
1491 hba->ops->unmap_pci_bar(hba);
1492
1493 free_scsi_host:
1494 scsi_host_put(host);
1495
1496 free_pci_regions:
1497 pci_release_regions(pcidev);
1498
1499 disable_pci_device:
1500 pci_disable_device(pcidev);
1501
1502 dprintk("scsi%d: hptiop_probe fail\n", host ? host->host_no : 0);
1503 return -ENODEV;
1504 }
1505
1506 static void hptiop_shutdown(struct pci_dev *pcidev)
1507 {
1508 struct Scsi_Host *host = pci_get_drvdata(pcidev);
1509 struct hptiop_hba *hba = (struct hptiop_hba *)host->hostdata;
1510
1511 dprintk("hptiop_shutdown(%p)\n", hba);
1512
1513 /* stop the iop */
1514 if (iop_send_sync_msg(hba, IOPMU_INBOUND_MSG0_SHUTDOWN, 60000))
1515 printk(KERN_ERR "scsi%d: shutdown the iop timeout\n",
1516 hba->host->host_no);
1517
1518 /* disable all outbound interrupts */
1519 hba->ops->disable_intr(hba);
1520 }
1521
1522 static void hptiop_disable_intr_itl(struct hptiop_hba *hba)
1523 {
1524 u32 int_mask;
1525
1526 int_mask = readl(&hba->u.itl.iop->outbound_intmask);
1527 writel(int_mask |
1528 IOPMU_OUTBOUND_INT_MSG0 | IOPMU_OUTBOUND_INT_POSTQUEUE,
1529 &hba->u.itl.iop->outbound_intmask);
1530 readl(&hba->u.itl.iop->outbound_intmask);
1531 }
1532
1533 static void hptiop_disable_intr_mv(struct hptiop_hba *hba)
1534 {
1535 writel(0, &hba->u.mv.regs->outbound_intmask);
1536 readl(&hba->u.mv.regs->outbound_intmask);
1537 }
1538
1539 static void hptiop_disable_intr_mvfrey(struct hptiop_hba *hba)
1540 {
1541 writel(0, &(hba->u.mvfrey.mu->f0_doorbell_enable));
1542 readl(&(hba->u.mvfrey.mu->f0_doorbell_enable));
1543 writel(0, &(hba->u.mvfrey.mu->isr_enable));
1544 readl(&(hba->u.mvfrey.mu->isr_enable));
1545 writel(0, &(hba->u.mvfrey.mu->pcie_f0_int_enable));
1546 readl(&(hba->u.mvfrey.mu->pcie_f0_int_enable));
1547 }
1548
1549 static void hptiop_remove(struct pci_dev *pcidev)
1550 {
1551 struct Scsi_Host *host = pci_get_drvdata(pcidev);
1552 struct hptiop_hba *hba = (struct hptiop_hba *)host->hostdata;
1553 u32 i;
1554
1555 dprintk("scsi%d: hptiop_remove\n", hba->host->host_no);
1556
1557 scsi_remove_host(host);
1558
1559 hptiop_shutdown(pcidev);
1560
1561 free_irq(hba->pcidev->irq, hba);
1562
1563 for (i = 0; i < hba->max_requests; i++) {
1564 if (hba->dma_coherent[i] && hba->dma_coherent_handle[i])
1565 dma_free_coherent(&hba->pcidev->dev,
1566 hba->req_size + 0x20,
1567 hba->dma_coherent[i],
1568 hba->dma_coherent_handle[i]);
1569 else
1570 break;
1571 }
1572
1573 hba->ops->internal_memfree(hba);
1574
1575 hba->ops->unmap_pci_bar(hba);
1576
1577 pci_release_regions(hba->pcidev);
1578 pci_set_drvdata(hba->pcidev, NULL);
1579 pci_disable_device(hba->pcidev);
1580
1581 scsi_host_put(host);
1582 }
1583
1584 static struct hptiop_adapter_ops hptiop_itl_ops = {
1585 .family = INTEL_BASED_IOP,
1586 .iop_wait_ready = iop_wait_ready_itl,
1587 .internal_memalloc = hptiop_internal_memalloc_itl,
1588 .internal_memfree = hptiop_internal_memfree_itl,
1589 .map_pci_bar = hptiop_map_pci_bar_itl,
1590 .unmap_pci_bar = hptiop_unmap_pci_bar_itl,
1591 .enable_intr = hptiop_enable_intr_itl,
1592 .disable_intr = hptiop_disable_intr_itl,
1593 .get_config = iop_get_config_itl,
1594 .set_config = iop_set_config_itl,
1595 .iop_intr = iop_intr_itl,
1596 .post_msg = hptiop_post_msg_itl,
1597 .post_req = hptiop_post_req_itl,
1598 .hw_dma_bit_mask = 64,
1599 .reset_comm = hptiop_reset_comm_itl,
1600 .host_phy_flag = cpu_to_le64(0),
1601 };
1602
1603 static struct hptiop_adapter_ops hptiop_mv_ops = {
1604 .family = MV_BASED_IOP,
1605 .iop_wait_ready = iop_wait_ready_mv,
1606 .internal_memalloc = hptiop_internal_memalloc_mv,
1607 .internal_memfree = hptiop_internal_memfree_mv,
1608 .map_pci_bar = hptiop_map_pci_bar_mv,
1609 .unmap_pci_bar = hptiop_unmap_pci_bar_mv,
1610 .enable_intr = hptiop_enable_intr_mv,
1611 .disable_intr = hptiop_disable_intr_mv,
1612 .get_config = iop_get_config_mv,
1613 .set_config = iop_set_config_mv,
1614 .iop_intr = iop_intr_mv,
1615 .post_msg = hptiop_post_msg_mv,
1616 .post_req = hptiop_post_req_mv,
1617 .hw_dma_bit_mask = 33,
1618 .reset_comm = hptiop_reset_comm_mv,
1619 .host_phy_flag = cpu_to_le64(0),
1620 };
1621
1622 static struct hptiop_adapter_ops hptiop_mvfrey_ops = {
1623 .family = MVFREY_BASED_IOP,
1624 .iop_wait_ready = iop_wait_ready_mvfrey,
1625 .internal_memalloc = hptiop_internal_memalloc_mvfrey,
1626 .internal_memfree = hptiop_internal_memfree_mvfrey,
1627 .map_pci_bar = hptiop_map_pci_bar_mvfrey,
1628 .unmap_pci_bar = hptiop_unmap_pci_bar_mvfrey,
1629 .enable_intr = hptiop_enable_intr_mvfrey,
1630 .disable_intr = hptiop_disable_intr_mvfrey,
1631 .get_config = iop_get_config_mvfrey,
1632 .set_config = iop_set_config_mvfrey,
1633 .iop_intr = iop_intr_mvfrey,
1634 .post_msg = hptiop_post_msg_mvfrey,
1635 .post_req = hptiop_post_req_mvfrey,
1636 .hw_dma_bit_mask = 64,
1637 .reset_comm = hptiop_reset_comm_mvfrey,
1638 .host_phy_flag = cpu_to_le64(1),
1639 };
1640
1641 static struct pci_device_id hptiop_id_table[] = {
1642 { PCI_VDEVICE(TTI, 0x3220), (kernel_ulong_t)&hptiop_itl_ops },
1643 { PCI_VDEVICE(TTI, 0x3320), (kernel_ulong_t)&hptiop_itl_ops },
1644 { PCI_VDEVICE(TTI, 0x3410), (kernel_ulong_t)&hptiop_itl_ops },
1645 { PCI_VDEVICE(TTI, 0x3510), (kernel_ulong_t)&hptiop_itl_ops },
1646 { PCI_VDEVICE(TTI, 0x3511), (kernel_ulong_t)&hptiop_itl_ops },
1647 { PCI_VDEVICE(TTI, 0x3520), (kernel_ulong_t)&hptiop_itl_ops },
1648 { PCI_VDEVICE(TTI, 0x3521), (kernel_ulong_t)&hptiop_itl_ops },
1649 { PCI_VDEVICE(TTI, 0x3522), (kernel_ulong_t)&hptiop_itl_ops },
1650 { PCI_VDEVICE(TTI, 0x3530), (kernel_ulong_t)&hptiop_itl_ops },
1651 { PCI_VDEVICE(TTI, 0x3540), (kernel_ulong_t)&hptiop_itl_ops },
1652 { PCI_VDEVICE(TTI, 0x3560), (kernel_ulong_t)&hptiop_itl_ops },
1653 { PCI_VDEVICE(TTI, 0x4210), (kernel_ulong_t)&hptiop_itl_ops },
1654 { PCI_VDEVICE(TTI, 0x4211), (kernel_ulong_t)&hptiop_itl_ops },
1655 { PCI_VDEVICE(TTI, 0x4310), (kernel_ulong_t)&hptiop_itl_ops },
1656 { PCI_VDEVICE(TTI, 0x4311), (kernel_ulong_t)&hptiop_itl_ops },
1657 { PCI_VDEVICE(TTI, 0x4320), (kernel_ulong_t)&hptiop_itl_ops },
1658 { PCI_VDEVICE(TTI, 0x4321), (kernel_ulong_t)&hptiop_itl_ops },
1659 { PCI_VDEVICE(TTI, 0x4322), (kernel_ulong_t)&hptiop_itl_ops },
1660 { PCI_VDEVICE(TTI, 0x4400), (kernel_ulong_t)&hptiop_itl_ops },
1661 { PCI_VDEVICE(TTI, 0x3120), (kernel_ulong_t)&hptiop_mv_ops },
1662 { PCI_VDEVICE(TTI, 0x3122), (kernel_ulong_t)&hptiop_mv_ops },
1663 { PCI_VDEVICE(TTI, 0x3020), (kernel_ulong_t)&hptiop_mv_ops },
1664 { PCI_VDEVICE(TTI, 0x4520), (kernel_ulong_t)&hptiop_mvfrey_ops },
1665 { PCI_VDEVICE(TTI, 0x4522), (kernel_ulong_t)&hptiop_mvfrey_ops },
1666 { PCI_VDEVICE(TTI, 0x3610), (kernel_ulong_t)&hptiop_mvfrey_ops },
1667 { PCI_VDEVICE(TTI, 0x3611), (kernel_ulong_t)&hptiop_mvfrey_ops },
1668 { PCI_VDEVICE(TTI, 0x3620), (kernel_ulong_t)&hptiop_mvfrey_ops },
1669 { PCI_VDEVICE(TTI, 0x3622), (kernel_ulong_t)&hptiop_mvfrey_ops },
1670 { PCI_VDEVICE(TTI, 0x3640), (kernel_ulong_t)&hptiop_mvfrey_ops },
1671 { PCI_VDEVICE(TTI, 0x3660), (kernel_ulong_t)&hptiop_mvfrey_ops },
1672 { PCI_VDEVICE(TTI, 0x3680), (kernel_ulong_t)&hptiop_mvfrey_ops },
1673 { PCI_VDEVICE(TTI, 0x3690), (kernel_ulong_t)&hptiop_mvfrey_ops },
1674 {},
1675 };
1676
1677 MODULE_DEVICE_TABLE(pci, hptiop_id_table);
1678
1679 static struct pci_driver hptiop_pci_driver = {
1680 .name = driver_name,
1681 .id_table = hptiop_id_table,
1682 .probe = hptiop_probe,
1683 .remove = hptiop_remove,
1684 .shutdown = hptiop_shutdown,
1685 };
1686
1687 static int __init hptiop_module_init(void)
1688 {
1689 printk(KERN_INFO "%s %s\n", driver_name_long, driver_ver);
1690 return pci_register_driver(&hptiop_pci_driver);
1691 }
1692
1693 static void __exit hptiop_module_exit(void)
1694 {
1695 pci_unregister_driver(&hptiop_pci_driver);
1696 }
1697
1698
1699 module_init(hptiop_module_init);
1700 module_exit(hptiop_module_exit);
1701
1702 MODULE_LICENSE("GPL");
1703
Linux with added FPC-III support