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lkdtm: Add Control Flow Integrity test
[linux/fpc-iii.git] / drivers / scsi / hptiop.c
blob6a2561f26e387c8fa1ed5c21505b0d94e8464b2f
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 break;
762
763 default:
764 scp->result = DRIVER_INVALID << 24 | DID_ABORT << 16;
765 break;
766 }
767
768 scsi_set_resid(scp,
769 scsi_bufflen(scp) - le32_to_cpu(req->dataxfer_length));
770
771 skip_resid:
772 dprintk("scsi_done(%p)\n", scp);
773 scp->scsi_done(scp);
774 free_req(hba, &hba->reqs[tag]);
775 }
776
777 static void hptiop_host_request_callback_itl(struct hptiop_hba *hba, u32 _tag)
778 {
779 struct hpt_iop_request_scsi_command *req;
780 u32 tag;
781
782 if (hba->iopintf_v2) {
783 tag = _tag & ~IOPMU_QUEUE_REQUEST_RESULT_BIT;
784 req = hba->reqs[tag].req_virt;
785 if (likely(_tag & IOPMU_QUEUE_REQUEST_RESULT_BIT))
786 req->header.result = cpu_to_le32(IOP_RESULT_SUCCESS);
787 } else {
788 tag = _tag;
789 req = hba->reqs[tag].req_virt;
790 }
791
792 hptiop_finish_scsi_req(hba, tag, req);
793 }
794
795 static void hptiop_iop_request_callback_itl(struct hptiop_hba *hba, u32 tag)
796 {
797 struct hpt_iop_request_header __iomem *req;
798 struct hpt_iop_request_ioctl_command __iomem *p;
799 struct hpt_ioctl_k *arg;
800
801 req = (struct hpt_iop_request_header __iomem *)
802 ((unsigned long)hba->u.itl.iop + tag);
803 dprintk("hptiop_iop_request_callback_itl: req=%p, type=%d, "
804 "result=%d, context=0x%x tag=%d\n",
805 req, readl(&req->type), readl(&req->result),
806 readl(&req->context), tag);
807
808 BUG_ON(!readl(&req->result));
809 BUG_ON(readl(&req->type) != IOP_REQUEST_TYPE_IOCTL_COMMAND);
810
811 p = (struct hpt_iop_request_ioctl_command __iomem *)req;
812 arg = (struct hpt_ioctl_k *)(unsigned long)
813 (readl(&req->context) |
814 ((u64)readl(&req->context_hi32)<<32));
815
816 if (readl(&req->result) == IOP_RESULT_SUCCESS) {
817 arg->result = HPT_IOCTL_RESULT_OK;
818
819 if (arg->outbuf_size)
820 memcpy_fromio(arg->outbuf,
821 &p->buf[(readl(&p->inbuf_size) + 3)& ~3],
822 arg->outbuf_size);
823
824 if (arg->bytes_returned)
825 *arg->bytes_returned = arg->outbuf_size;
826 }
827 else
828 arg->result = HPT_IOCTL_RESULT_FAILED;
829
830 arg->done(arg);
831 writel(tag, &hba->u.itl.iop->outbound_queue);
832 }
833
834 static irqreturn_t hptiop_intr(int irq, void *dev_id)
835 {
836 struct hptiop_hba *hba = dev_id;
837 int handled;
838 unsigned long flags;
839
840 spin_lock_irqsave(hba->host->host_lock, flags);
841 handled = hba->ops->iop_intr(hba);
842 spin_unlock_irqrestore(hba->host->host_lock, flags);
843
844 return handled;
845 }
846
847 static int hptiop_buildsgl(struct scsi_cmnd *scp, struct hpt_iopsg *psg)
848 {
849 struct Scsi_Host *host = scp->device->host;
850 struct hptiop_hba *hba = (struct hptiop_hba *)host->hostdata;
851 struct scatterlist *sg;
852 int idx, nseg;
853
854 nseg = scsi_dma_map(scp);
855 BUG_ON(nseg < 0);
856 if (!nseg)
857 return 0;
858
859 HPT_SCP(scp)->sgcnt = nseg;
860 HPT_SCP(scp)->mapped = 1;
861
862 BUG_ON(HPT_SCP(scp)->sgcnt > hba->max_sg_descriptors);
863
864 scsi_for_each_sg(scp, sg, HPT_SCP(scp)->sgcnt, idx) {
865 psg[idx].pci_address = cpu_to_le64(sg_dma_address(sg)) |
866 hba->ops->host_phy_flag;
867 psg[idx].size = cpu_to_le32(sg_dma_len(sg));
868 psg[idx].eot = (idx == HPT_SCP(scp)->sgcnt - 1) ?
869 cpu_to_le32(1) : 0;
870 }
871 return HPT_SCP(scp)->sgcnt;
872 }
873
874 static void hptiop_post_req_itl(struct hptiop_hba *hba,
875 struct hptiop_request *_req)
876 {
877 struct hpt_iop_request_header *reqhdr = _req->req_virt;
878
879 reqhdr->context = cpu_to_le32(IOPMU_QUEUE_ADDR_HOST_BIT |
880 (u32)_req->index);
881 reqhdr->context_hi32 = 0;
882
883 if (hba->iopintf_v2) {
884 u32 size, size_bits;
885
886 size = le32_to_cpu(reqhdr->size);
887 if (size < 256)
888 size_bits = IOPMU_QUEUE_REQUEST_SIZE_BIT;
889 else if (size < 512)
890 size_bits = IOPMU_QUEUE_ADDR_HOST_BIT;
891 else
892 size_bits = IOPMU_QUEUE_REQUEST_SIZE_BIT |
893 IOPMU_QUEUE_ADDR_HOST_BIT;
894 writel(_req->req_shifted_phy | size_bits,
895 &hba->u.itl.iop->inbound_queue);
896 } else
897 writel(_req->req_shifted_phy | IOPMU_QUEUE_ADDR_HOST_BIT,
898 &hba->u.itl.iop->inbound_queue);
899 }
900
901 static void hptiop_post_req_mv(struct hptiop_hba *hba,
902 struct hptiop_request *_req)
903 {
904 struct hpt_iop_request_header *reqhdr = _req->req_virt;
905 u32 size, size_bit;
906
907 reqhdr->context = cpu_to_le32(_req->index<<8 |
908 IOP_REQUEST_TYPE_SCSI_COMMAND<<5);
909 reqhdr->context_hi32 = 0;
910 size = le32_to_cpu(reqhdr->size);
911
912 if (size <= 256)
913 size_bit = 0;
914 else if (size <= 256*2)
915 size_bit = 1;
916 else if (size <= 256*3)
917 size_bit = 2;
918 else
919 size_bit = 3;
920
921 mv_inbound_write((_req->req_shifted_phy << 5) |
922 MVIOP_MU_QUEUE_ADDR_HOST_BIT | size_bit, hba);
923 }
924
925 static void hptiop_post_req_mvfrey(struct hptiop_hba *hba,
926 struct hptiop_request *_req)
927 {
928 struct hpt_iop_request_header *reqhdr = _req->req_virt;
929 u32 index;
930
931 reqhdr->flags |= cpu_to_le32(IOP_REQUEST_FLAG_OUTPUT_CONTEXT |
932 IOP_REQUEST_FLAG_ADDR_BITS |
933 ((_req->req_shifted_phy >> 11) & 0xffff0000));
934 reqhdr->context = cpu_to_le32(IOPMU_QUEUE_ADDR_HOST_BIT |
935 (_req->index << 4) | reqhdr->type);
936 reqhdr->context_hi32 = cpu_to_le32((_req->req_shifted_phy << 5) &
937 0xffffffff);
938
939 hba->u.mvfrey.inlist_wptr++;
940 index = hba->u.mvfrey.inlist_wptr & 0x3fff;
941
942 if (index == hba->u.mvfrey.list_count) {
943 index = 0;
944 hba->u.mvfrey.inlist_wptr &= ~0x3fff;
945 hba->u.mvfrey.inlist_wptr ^= CL_POINTER_TOGGLE;
946 }
947
948 hba->u.mvfrey.inlist[index].addr =
949 (dma_addr_t)_req->req_shifted_phy << 5;
950 hba->u.mvfrey.inlist[index].intrfc_len = (reqhdr->size + 3) / 4;
951 writel(hba->u.mvfrey.inlist_wptr,
952 &(hba->u.mvfrey.mu->inbound_write_ptr));
953 readl(&(hba->u.mvfrey.mu->inbound_write_ptr));
954 }
955
956 static int hptiop_reset_comm_itl(struct hptiop_hba *hba)
957 {
958 return 0;
959 }
960
961 static int hptiop_reset_comm_mv(struct hptiop_hba *hba)
962 {
963 return 0;
964 }
965
966 static int hptiop_reset_comm_mvfrey(struct hptiop_hba *hba)
967 {
968 u32 list_count = hba->u.mvfrey.list_count;
969
970 if (iop_send_sync_msg(hba, IOPMU_INBOUND_MSG0_RESET_COMM, 3000))
971 return -1;
972
973 /* wait 100ms for MCU ready */
974 msleep(100);
975
976 writel(cpu_to_le32(hba->u.mvfrey.inlist_phy & 0xffffffff),
977 &(hba->u.mvfrey.mu->inbound_base));
978 writel(cpu_to_le32((hba->u.mvfrey.inlist_phy >> 16) >> 16),
979 &(hba->u.mvfrey.mu->inbound_base_high));
980
981 writel(cpu_to_le32(hba->u.mvfrey.outlist_phy & 0xffffffff),
982 &(hba->u.mvfrey.mu->outbound_base));
983 writel(cpu_to_le32((hba->u.mvfrey.outlist_phy >> 16) >> 16),
984 &(hba->u.mvfrey.mu->outbound_base_high));
985
986 writel(cpu_to_le32(hba->u.mvfrey.outlist_cptr_phy & 0xffffffff),
987 &(hba->u.mvfrey.mu->outbound_shadow_base));
988 writel(cpu_to_le32((hba->u.mvfrey.outlist_cptr_phy >> 16) >> 16),
989 &(hba->u.mvfrey.mu->outbound_shadow_base_high));
990
991 hba->u.mvfrey.inlist_wptr = (list_count - 1) | CL_POINTER_TOGGLE;
992 *hba->u.mvfrey.outlist_cptr = (list_count - 1) | CL_POINTER_TOGGLE;
993 hba->u.mvfrey.outlist_rptr = list_count - 1;
994 return 0;
995 }
996
997 static int hptiop_queuecommand_lck(struct scsi_cmnd *scp,
998 void (*done)(struct scsi_cmnd *))
999 {
1000 struct Scsi_Host *host = scp->device->host;
1001 struct hptiop_hba *hba = (struct hptiop_hba *)host->hostdata;
1002 struct hpt_iop_request_scsi_command *req;
1003 int sg_count = 0;
1004 struct hptiop_request *_req;
1005
1006 BUG_ON(!done);
1007 scp->scsi_done = done;
1008
1009 _req = get_req(hba);
1010 if (_req == NULL) {
1011 dprintk("hptiop_queuecmd : no free req\n");
1012 return SCSI_MLQUEUE_HOST_BUSY;
1013 }
1014
1015 _req->scp = scp;
1016
1017 dprintk("hptiop_queuecmd(scp=%p) %d/%d/%d/%llu cdb=(%08x-%08x-%08x-%08x) "
1018 "req_index=%d, req=%p\n",
1019 scp,
1020 host->host_no, scp->device->channel,
1021 scp->device->id, scp->device->lun,
1022 cpu_to_be32(((u32 *)scp->cmnd)[0]),
1023 cpu_to_be32(((u32 *)scp->cmnd)[1]),
1024 cpu_to_be32(((u32 *)scp->cmnd)[2]),
1025 cpu_to_be32(((u32 *)scp->cmnd)[3]),
1026 _req->index, _req->req_virt);
1027
1028 scp->result = 0;
1029
1030 if (scp->device->channel ||
1031 (scp->device->id > hba->max_devices) ||
1032 ((scp->device->id == (hba->max_devices-1)) && scp->device->lun)) {
1033 scp->result = DID_BAD_TARGET << 16;
1034 free_req(hba, _req);
1035 goto cmd_done;
1036 }
1037
1038 req = _req->req_virt;
1039
1040 /* build S/G table */
1041 sg_count = hptiop_buildsgl(scp, req->sg_list);
1042 if (!sg_count)
1043 HPT_SCP(scp)->mapped = 0;
1044
1045 req->header.flags = cpu_to_le32(IOP_REQUEST_FLAG_OUTPUT_CONTEXT);
1046 req->header.type = cpu_to_le32(IOP_REQUEST_TYPE_SCSI_COMMAND);
1047 req->header.result = cpu_to_le32(IOP_RESULT_PENDING);
1048 req->dataxfer_length = cpu_to_le32(scsi_bufflen(scp));
1049 req->channel = scp->device->channel;
1050 req->target = scp->device->id;
1051 req->lun = scp->device->lun;
1052 req->header.size = cpu_to_le32(
1053 sizeof(struct hpt_iop_request_scsi_command)
1054 - sizeof(struct hpt_iopsg)
1055 + sg_count * sizeof(struct hpt_iopsg));
1056
1057 memcpy(req->cdb, scp->cmnd, sizeof(req->cdb));
1058 hba->ops->post_req(hba, _req);
1059 return 0;
1060
1061 cmd_done:
1062 dprintk("scsi_done(scp=%p)\n", scp);
1063 scp->scsi_done(scp);
1064 return 0;
1065 }
1066
1067 static DEF_SCSI_QCMD(hptiop_queuecommand)
1068
1069 static const char *hptiop_info(struct Scsi_Host *host)
1070 {
1071 return driver_name_long;
1072 }
1073
1074 static int hptiop_reset_hba(struct hptiop_hba *hba)
1075 {
1076 if (atomic_xchg(&hba->resetting, 1) == 0) {
1077 atomic_inc(&hba->reset_count);
1078 hba->ops->post_msg(hba, IOPMU_INBOUND_MSG0_RESET);
1079 }
1080
1081 wait_event_timeout(hba->reset_wq,
1082 atomic_read(&hba->resetting) == 0, 60 * HZ);
1083
1084 if (atomic_read(&hba->resetting)) {
1085 /* IOP is in unknown state, abort reset */
1086 printk(KERN_ERR "scsi%d: reset failed\n", hba->host->host_no);
1087 return -1;
1088 }
1089
1090 if (iop_send_sync_msg(hba,
1091 IOPMU_INBOUND_MSG0_START_BACKGROUND_TASK, 5000)) {
1092 dprintk("scsi%d: fail to start background task\n",
1093 hba->host->host_no);
1094 }
1095
1096 return 0;
1097 }
1098
1099 static int hptiop_reset(struct scsi_cmnd *scp)
1100 {
1101 struct hptiop_hba * hba = (struct hptiop_hba *)scp->device->host->hostdata;
1102
1103 printk(KERN_WARNING "hptiop_reset(%d/%d/%d)\n",
1104 scp->device->host->host_no, -1, -1);
1105
1106 return hptiop_reset_hba(hba)? FAILED : SUCCESS;
1107 }
1108
1109 static int hptiop_adjust_disk_queue_depth(struct scsi_device *sdev,
1110 int queue_depth)
1111 {
1112 struct hptiop_hba *hba = (struct hptiop_hba *)sdev->host->hostdata;
1113
1114 if (queue_depth > hba->max_requests)
1115 queue_depth = hba->max_requests;
1116 return scsi_change_queue_depth(sdev, queue_depth);
1117 }
1118
1119 static ssize_t hptiop_show_version(struct device *dev,
1120 struct device_attribute *attr, char *buf)
1121 {
1122 return snprintf(buf, PAGE_SIZE, "%s\n", driver_ver);
1123 }
1124
1125 static ssize_t hptiop_show_fw_version(struct device *dev,
1126 struct device_attribute *attr, char *buf)
1127 {
1128 struct Scsi_Host *host = class_to_shost(dev);
1129 struct hptiop_hba *hba = (struct hptiop_hba *)host->hostdata;
1130
1131 return snprintf(buf, PAGE_SIZE, "%d.%d.%d.%d\n",
1132 hba->firmware_version >> 24,
1133 (hba->firmware_version >> 16) & 0xff,
1134 (hba->firmware_version >> 8) & 0xff,
1135 hba->firmware_version & 0xff);
1136 }
1137
1138 static struct device_attribute hptiop_attr_version = {
1139 .attr = {
1140 .name = "driver-version",
1141 .mode = S_IRUGO,
1142 },
1143 .show = hptiop_show_version,
1144 };
1145
1146 static struct device_attribute hptiop_attr_fw_version = {
1147 .attr = {
1148 .name = "firmware-version",
1149 .mode = S_IRUGO,
1150 },
1151 .show = hptiop_show_fw_version,
1152 };
1153
1154 static struct device_attribute *hptiop_attrs[] = {
1155 &hptiop_attr_version,
1156 &hptiop_attr_fw_version,
1157 NULL
1158 };
1159
1160 static int hptiop_slave_config(struct scsi_device *sdev)
1161 {
1162 if (sdev->type == TYPE_TAPE)
1163 blk_queue_max_hw_sectors(sdev->request_queue, 8192);
1164
1165 return 0;
1166 }
1167
1168 static struct scsi_host_template driver_template = {
1169 .module = THIS_MODULE,
1170 .name = driver_name,
1171 .queuecommand = hptiop_queuecommand,
1172 .eh_host_reset_handler = hptiop_reset,
1173 .info = hptiop_info,
1174 .emulated = 0,
1175 .proc_name = driver_name,
1176 .shost_attrs = hptiop_attrs,
1177 .slave_configure = hptiop_slave_config,
1178 .this_id = -1,
1179 .change_queue_depth = hptiop_adjust_disk_queue_depth,
1180 };
1181
1182 static int hptiop_internal_memalloc_itl(struct hptiop_hba *hba)
1183 {
1184 return 0;
1185 }
1186
1187 static int hptiop_internal_memalloc_mv(struct hptiop_hba *hba)
1188 {
1189 hba->u.mv.internal_req = dma_alloc_coherent(&hba->pcidev->dev,
1190 0x800, &hba->u.mv.internal_req_phy, GFP_KERNEL);
1191 if (hba->u.mv.internal_req)
1192 return 0;
1193 else
1194 return -1;
1195 }
1196
1197 static int hptiop_internal_memalloc_mvfrey(struct hptiop_hba *hba)
1198 {
1199 u32 list_count = readl(&hba->u.mvfrey.mu->inbound_conf_ctl);
1200 char *p;
1201 dma_addr_t phy;
1202
1203 BUG_ON(hba->max_request_size == 0);
1204
1205 if (list_count == 0) {
1206 BUG_ON(1);
1207 return -1;
1208 }
1209
1210 list_count >>= 16;
1211
1212 hba->u.mvfrey.list_count = list_count;
1213 hba->u.mvfrey.internal_mem_size = 0x800 +
1214 list_count * sizeof(struct mvfrey_inlist_entry) +
1215 list_count * sizeof(struct mvfrey_outlist_entry) +
1216 sizeof(int);
1217
1218 p = dma_alloc_coherent(&hba->pcidev->dev,
1219 hba->u.mvfrey.internal_mem_size, &phy, GFP_KERNEL);
1220 if (!p)
1221 return -1;
1222
1223 hba->u.mvfrey.internal_req.req_virt = p;
1224 hba->u.mvfrey.internal_req.req_shifted_phy = phy >> 5;
1225 hba->u.mvfrey.internal_req.scp = NULL;
1226 hba->u.mvfrey.internal_req.next = NULL;
1227
1228 p += 0x800;
1229 phy += 0x800;
1230
1231 hba->u.mvfrey.inlist = (struct mvfrey_inlist_entry *)p;
1232 hba->u.mvfrey.inlist_phy = phy;
1233
1234 p += list_count * sizeof(struct mvfrey_inlist_entry);
1235 phy += list_count * sizeof(struct mvfrey_inlist_entry);
1236
1237 hba->u.mvfrey.outlist = (struct mvfrey_outlist_entry *)p;
1238 hba->u.mvfrey.outlist_phy = phy;
1239
1240 p += list_count * sizeof(struct mvfrey_outlist_entry);
1241 phy += list_count * sizeof(struct mvfrey_outlist_entry);
1242
1243 hba->u.mvfrey.outlist_cptr = (__le32 *)p;
1244 hba->u.mvfrey.outlist_cptr_phy = phy;
1245
1246 return 0;
1247 }
1248
1249 static int hptiop_internal_memfree_itl(struct hptiop_hba *hba)
1250 {
1251 return 0;
1252 }
1253
1254 static int hptiop_internal_memfree_mv(struct hptiop_hba *hba)
1255 {
1256 if (hba->u.mv.internal_req) {
1257 dma_free_coherent(&hba->pcidev->dev, 0x800,
1258 hba->u.mv.internal_req, hba->u.mv.internal_req_phy);
1259 return 0;
1260 } else
1261 return -1;
1262 }
1263
1264 static int hptiop_internal_memfree_mvfrey(struct hptiop_hba *hba)
1265 {
1266 if (hba->u.mvfrey.internal_req.req_virt) {
1267 dma_free_coherent(&hba->pcidev->dev,
1268 hba->u.mvfrey.internal_mem_size,
1269 hba->u.mvfrey.internal_req.req_virt,
1270 (dma_addr_t)
1271 hba->u.mvfrey.internal_req.req_shifted_phy << 5);
1272 return 0;
1273 } else
1274 return -1;
1275 }
1276
1277 static int hptiop_probe(struct pci_dev *pcidev, const struct pci_device_id *id)
1278 {
1279 struct Scsi_Host *host = NULL;
1280 struct hptiop_hba *hba;
1281 struct hptiop_adapter_ops *iop_ops;
1282 struct hpt_iop_request_get_config iop_config;
1283 struct hpt_iop_request_set_config set_config;
1284 dma_addr_t start_phy;
1285 void *start_virt;
1286 u32 offset, i, req_size;
1287 int rc;
1288
1289 dprintk("hptiop_probe(%p)\n", pcidev);
1290
1291 if (pci_enable_device(pcidev)) {
1292 printk(KERN_ERR "hptiop: fail to enable pci device\n");
1293 return -ENODEV;
1294 }
1295
1296 printk(KERN_INFO "adapter at PCI %d:%d:%d, IRQ %d\n",
1297 pcidev->bus->number, pcidev->devfn >> 3, pcidev->devfn & 7,
1298 pcidev->irq);
1299
1300 pci_set_master(pcidev);
1301
1302 /* Enable 64bit DMA if possible */
1303 iop_ops = (struct hptiop_adapter_ops *)id->driver_data;
1304 rc = dma_set_mask(&pcidev->dev,
1305 DMA_BIT_MASK(iop_ops->hw_dma_bit_mask));
1306 if (rc)
1307 rc = dma_set_mask(&pcidev->dev, DMA_BIT_MASK(32));
1308
1309 if (rc) {
1310 printk(KERN_ERR "hptiop: fail to set dma_mask\n");
1311 goto disable_pci_device;
1312 }
1313
1314 if (pci_request_regions(pcidev, driver_name)) {
1315 printk(KERN_ERR "hptiop: pci_request_regions failed\n");
1316 goto disable_pci_device;
1317 }
1318
1319 host = scsi_host_alloc(&driver_template, sizeof(struct hptiop_hba));
1320 if (!host) {
1321 printk(KERN_ERR "hptiop: fail to alloc scsi host\n");
1322 goto free_pci_regions;
1323 }
1324
1325 hba = (struct hptiop_hba *)host->hostdata;
1326 memset(hba, 0, sizeof(struct hptiop_hba));
1327
1328 hba->ops = iop_ops;
1329 hba->pcidev = pcidev;
1330 hba->host = host;
1331 hba->initialized = 0;
1332 hba->iopintf_v2 = 0;
1333
1334 atomic_set(&hba->resetting, 0);
1335 atomic_set(&hba->reset_count, 0);
1336
1337 init_waitqueue_head(&hba->reset_wq);
1338 init_waitqueue_head(&hba->ioctl_wq);
1339
1340 host->max_lun = 128;
1341 host->max_channel = 0;
1342 host->io_port = 0;
1343 host->n_io_port = 0;
1344 host->irq = pcidev->irq;
1345
1346 if (hba->ops->map_pci_bar(hba))
1347 goto free_scsi_host;
1348
1349 if (hba->ops->iop_wait_ready(hba, 20000)) {
1350 printk(KERN_ERR "scsi%d: firmware not ready\n",
1351 hba->host->host_no);
1352 goto unmap_pci_bar;
1353 }
1354
1355 if (hba->ops->family == MV_BASED_IOP) {
1356 if (hba->ops->internal_memalloc(hba)) {
1357 printk(KERN_ERR "scsi%d: internal_memalloc failed\n",
1358 hba->host->host_no);
1359 goto unmap_pci_bar;
1360 }
1361 }
1362
1363 if (hba->ops->get_config(hba, &iop_config)) {
1364 printk(KERN_ERR "scsi%d: get config failed\n",
1365 hba->host->host_no);
1366 goto unmap_pci_bar;
1367 }
1368
1369 hba->max_requests = min(le32_to_cpu(iop_config.max_requests),
1370 HPTIOP_MAX_REQUESTS);
1371 hba->max_devices = le32_to_cpu(iop_config.max_devices);
1372 hba->max_request_size = le32_to_cpu(iop_config.request_size);
1373 hba->max_sg_descriptors = le32_to_cpu(iop_config.max_sg_count);
1374 hba->firmware_version = le32_to_cpu(iop_config.firmware_version);
1375 hba->interface_version = le32_to_cpu(iop_config.interface_version);
1376 hba->sdram_size = le32_to_cpu(iop_config.sdram_size);
1377
1378 if (hba->ops->family == MVFREY_BASED_IOP) {
1379 if (hba->ops->internal_memalloc(hba)) {
1380 printk(KERN_ERR "scsi%d: internal_memalloc failed\n",
1381 hba->host->host_no);
1382 goto unmap_pci_bar;
1383 }
1384 if (hba->ops->reset_comm(hba)) {
1385 printk(KERN_ERR "scsi%d: reset comm failed\n",
1386 hba->host->host_no);
1387 goto unmap_pci_bar;
1388 }
1389 }
1390
1391 if (hba->firmware_version > 0x01020000 ||
1392 hba->interface_version > 0x01020000)
1393 hba->iopintf_v2 = 1;
1394
1395 host->max_sectors = le32_to_cpu(iop_config.data_transfer_length) >> 9;
1396 host->max_id = le32_to_cpu(iop_config.max_devices);
1397 host->sg_tablesize = le32_to_cpu(iop_config.max_sg_count);
1398 host->can_queue = le32_to_cpu(iop_config.max_requests);
1399 host->cmd_per_lun = le32_to_cpu(iop_config.max_requests);
1400 host->max_cmd_len = 16;
1401
1402 req_size = sizeof(struct hpt_iop_request_scsi_command)
1403 + sizeof(struct hpt_iopsg) * (hba->max_sg_descriptors - 1);
1404 if ((req_size & 0x1f) != 0)
1405 req_size = (req_size + 0x1f) & ~0x1f;
1406
1407 memset(&set_config, 0, sizeof(struct hpt_iop_request_set_config));
1408 set_config.iop_id = cpu_to_le32(host->host_no);
1409 set_config.vbus_id = cpu_to_le16(host->host_no);
1410 set_config.max_host_request_size = cpu_to_le16(req_size);
1411
1412 if (hba->ops->set_config(hba, &set_config)) {
1413 printk(KERN_ERR "scsi%d: set config failed\n",
1414 hba->host->host_no);
1415 goto unmap_pci_bar;
1416 }
1417
1418 pci_set_drvdata(pcidev, host);
1419
1420 if (request_irq(pcidev->irq, hptiop_intr, IRQF_SHARED,
1421 driver_name, hba)) {
1422 printk(KERN_ERR "scsi%d: request irq %d failed\n",
1423 hba->host->host_no, pcidev->irq);
1424 goto unmap_pci_bar;
1425 }
1426
1427 /* Allocate request mem */
1428
1429 dprintk("req_size=%d, max_requests=%d\n", req_size, hba->max_requests);
1430
1431 hba->req_size = req_size;
1432 hba->req_list = NULL;
1433
1434 for (i = 0; i < hba->max_requests; i++) {
1435 start_virt = dma_alloc_coherent(&pcidev->dev,
1436 hba->req_size + 0x20,
1437 &start_phy, GFP_KERNEL);
1438
1439 if (!start_virt) {
1440 printk(KERN_ERR "scsi%d: fail to alloc request mem\n",
1441 hba->host->host_no);
1442 goto free_request_mem;
1443 }
1444
1445 hba->dma_coherent[i] = start_virt;
1446 hba->dma_coherent_handle[i] = start_phy;
1447
1448 if ((start_phy & 0x1f) != 0) {
1449 offset = ((start_phy + 0x1f) & ~0x1f) - start_phy;
1450 start_phy += offset;
1451 start_virt += offset;
1452 }
1453
1454 hba->reqs[i].next = NULL;
1455 hba->reqs[i].req_virt = start_virt;
1456 hba->reqs[i].req_shifted_phy = start_phy >> 5;
1457 hba->reqs[i].index = i;
1458 free_req(hba, &hba->reqs[i]);
1459 }
1460
1461 /* Enable Interrupt and start background task */
1462 if (hptiop_initialize_iop(hba))
1463 goto free_request_mem;
1464
1465 if (scsi_add_host(host, &pcidev->dev)) {
1466 printk(KERN_ERR "scsi%d: scsi_add_host failed\n",
1467 hba->host->host_no);
1468 goto free_request_mem;
1469 }
1470
1471 scsi_scan_host(host);
1472
1473 dprintk("scsi%d: hptiop_probe successfully\n", hba->host->host_no);
1474 return 0;
1475
1476 free_request_mem:
1477 for (i = 0; i < hba->max_requests; i++) {
1478 if (hba->dma_coherent[i] && hba->dma_coherent_handle[i])
1479 dma_free_coherent(&hba->pcidev->dev,
1480 hba->req_size + 0x20,
1481 hba->dma_coherent[i],
1482 hba->dma_coherent_handle[i]);
1483 else
1484 break;
1485 }
1486
1487 free_irq(hba->pcidev->irq, hba);
1488
1489 unmap_pci_bar:
1490 hba->ops->internal_memfree(hba);
1491
1492 hba->ops->unmap_pci_bar(hba);
1493
1494 free_scsi_host:
1495 scsi_host_put(host);
1496
1497 free_pci_regions:
1498 pci_release_regions(pcidev);
1499
1500 disable_pci_device:
1501 pci_disable_device(pcidev);
1502
1503 dprintk("scsi%d: hptiop_probe fail\n", host ? host->host_no : 0);
1504 return -ENODEV;
1505 }
1506
1507 static void hptiop_shutdown(struct pci_dev *pcidev)
1508 {
1509 struct Scsi_Host *host = pci_get_drvdata(pcidev);
1510 struct hptiop_hba *hba = (struct hptiop_hba *)host->hostdata;
1511
1512 dprintk("hptiop_shutdown(%p)\n", hba);
1513
1514 /* stop the iop */
1515 if (iop_send_sync_msg(hba, IOPMU_INBOUND_MSG0_SHUTDOWN, 60000))
1516 printk(KERN_ERR "scsi%d: shutdown the iop timeout\n",
1517 hba->host->host_no);
1518
1519 /* disable all outbound interrupts */
1520 hba->ops->disable_intr(hba);
1521 }
1522
1523 static void hptiop_disable_intr_itl(struct hptiop_hba *hba)
1524 {
1525 u32 int_mask;
1526
1527 int_mask = readl(&hba->u.itl.iop->outbound_intmask);
1528 writel(int_mask |
1529 IOPMU_OUTBOUND_INT_MSG0 | IOPMU_OUTBOUND_INT_POSTQUEUE,
1530 &hba->u.itl.iop->outbound_intmask);
1531 readl(&hba->u.itl.iop->outbound_intmask);
1532 }
1533
1534 static void hptiop_disable_intr_mv(struct hptiop_hba *hba)
1535 {
1536 writel(0, &hba->u.mv.regs->outbound_intmask);
1537 readl(&hba->u.mv.regs->outbound_intmask);
1538 }
1539
1540 static void hptiop_disable_intr_mvfrey(struct hptiop_hba *hba)
1541 {
1542 writel(0, &(hba->u.mvfrey.mu->f0_doorbell_enable));
1543 readl(&(hba->u.mvfrey.mu->f0_doorbell_enable));
1544 writel(0, &(hba->u.mvfrey.mu->isr_enable));
1545 readl(&(hba->u.mvfrey.mu->isr_enable));
1546 writel(0, &(hba->u.mvfrey.mu->pcie_f0_int_enable));
1547 readl(&(hba->u.mvfrey.mu->pcie_f0_int_enable));
1548 }
1549
1550 static void hptiop_remove(struct pci_dev *pcidev)
1551 {
1552 struct Scsi_Host *host = pci_get_drvdata(pcidev);
1553 struct hptiop_hba *hba = (struct hptiop_hba *)host->hostdata;
1554 u32 i;
1555
1556 dprintk("scsi%d: hptiop_remove\n", hba->host->host_no);
1557
1558 scsi_remove_host(host);
1559
1560 hptiop_shutdown(pcidev);
1561
1562 free_irq(hba->pcidev->irq, hba);
1563
1564 for (i = 0; i < hba->max_requests; i++) {
1565 if (hba->dma_coherent[i] && hba->dma_coherent_handle[i])
1566 dma_free_coherent(&hba->pcidev->dev,
1567 hba->req_size + 0x20,
1568 hba->dma_coherent[i],
1569 hba->dma_coherent_handle[i]);
1570 else
1571 break;
1572 }
1573
1574 hba->ops->internal_memfree(hba);
1575
1576 hba->ops->unmap_pci_bar(hba);
1577
1578 pci_release_regions(hba->pcidev);
1579 pci_set_drvdata(hba->pcidev, NULL);
1580 pci_disable_device(hba->pcidev);
1581
1582 scsi_host_put(host);
1583 }
1584
1585 static struct hptiop_adapter_ops hptiop_itl_ops = {
1586 .family = INTEL_BASED_IOP,
1587 .iop_wait_ready = iop_wait_ready_itl,
1588 .internal_memalloc = hptiop_internal_memalloc_itl,
1589 .internal_memfree = hptiop_internal_memfree_itl,
1590 .map_pci_bar = hptiop_map_pci_bar_itl,
1591 .unmap_pci_bar = hptiop_unmap_pci_bar_itl,
1592 .enable_intr = hptiop_enable_intr_itl,
1593 .disable_intr = hptiop_disable_intr_itl,
1594 .get_config = iop_get_config_itl,
1595 .set_config = iop_set_config_itl,
1596 .iop_intr = iop_intr_itl,
1597 .post_msg = hptiop_post_msg_itl,
1598 .post_req = hptiop_post_req_itl,
1599 .hw_dma_bit_mask = 64,
1600 .reset_comm = hptiop_reset_comm_itl,
1601 .host_phy_flag = cpu_to_le64(0),
1602 };
1603
1604 static struct hptiop_adapter_ops hptiop_mv_ops = {
1605 .family = MV_BASED_IOP,
1606 .iop_wait_ready = iop_wait_ready_mv,
1607 .internal_memalloc = hptiop_internal_memalloc_mv,
1608 .internal_memfree = hptiop_internal_memfree_mv,
1609 .map_pci_bar = hptiop_map_pci_bar_mv,
1610 .unmap_pci_bar = hptiop_unmap_pci_bar_mv,
1611 .enable_intr = hptiop_enable_intr_mv,
1612 .disable_intr = hptiop_disable_intr_mv,
1613 .get_config = iop_get_config_mv,
1614 .set_config = iop_set_config_mv,
1615 .iop_intr = iop_intr_mv,
1616 .post_msg = hptiop_post_msg_mv,
1617 .post_req = hptiop_post_req_mv,
1618 .hw_dma_bit_mask = 33,
1619 .reset_comm = hptiop_reset_comm_mv,
1620 .host_phy_flag = cpu_to_le64(0),
1621 };
1622
1623 static struct hptiop_adapter_ops hptiop_mvfrey_ops = {
1624 .family = MVFREY_BASED_IOP,
1625 .iop_wait_ready = iop_wait_ready_mvfrey,
1626 .internal_memalloc = hptiop_internal_memalloc_mvfrey,
1627 .internal_memfree = hptiop_internal_memfree_mvfrey,
1628 .map_pci_bar = hptiop_map_pci_bar_mvfrey,
1629 .unmap_pci_bar = hptiop_unmap_pci_bar_mvfrey,
1630 .enable_intr = hptiop_enable_intr_mvfrey,
1631 .disable_intr = hptiop_disable_intr_mvfrey,
1632 .get_config = iop_get_config_mvfrey,
1633 .set_config = iop_set_config_mvfrey,
1634 .iop_intr = iop_intr_mvfrey,
1635 .post_msg = hptiop_post_msg_mvfrey,
1636 .post_req = hptiop_post_req_mvfrey,
1637 .hw_dma_bit_mask = 64,
1638 .reset_comm = hptiop_reset_comm_mvfrey,
1639 .host_phy_flag = cpu_to_le64(1),
1640 };
1641
1642 static struct pci_device_id hptiop_id_table[] = {
1643 { PCI_VDEVICE(TTI, 0x3220), (kernel_ulong_t)&hptiop_itl_ops },
1644 { PCI_VDEVICE(TTI, 0x3320), (kernel_ulong_t)&hptiop_itl_ops },
1645 { PCI_VDEVICE(TTI, 0x3410), (kernel_ulong_t)&hptiop_itl_ops },
1646 { PCI_VDEVICE(TTI, 0x3510), (kernel_ulong_t)&hptiop_itl_ops },
1647 { PCI_VDEVICE(TTI, 0x3511), (kernel_ulong_t)&hptiop_itl_ops },
1648 { PCI_VDEVICE(TTI, 0x3520), (kernel_ulong_t)&hptiop_itl_ops },
1649 { PCI_VDEVICE(TTI, 0x3521), (kernel_ulong_t)&hptiop_itl_ops },
1650 { PCI_VDEVICE(TTI, 0x3522), (kernel_ulong_t)&hptiop_itl_ops },
1651 { PCI_VDEVICE(TTI, 0x3530), (kernel_ulong_t)&hptiop_itl_ops },
1652 { PCI_VDEVICE(TTI, 0x3540), (kernel_ulong_t)&hptiop_itl_ops },
1653 { PCI_VDEVICE(TTI, 0x3560), (kernel_ulong_t)&hptiop_itl_ops },
1654 { PCI_VDEVICE(TTI, 0x4210), (kernel_ulong_t)&hptiop_itl_ops },
1655 { PCI_VDEVICE(TTI, 0x4211), (kernel_ulong_t)&hptiop_itl_ops },
1656 { PCI_VDEVICE(TTI, 0x4310), (kernel_ulong_t)&hptiop_itl_ops },
1657 { PCI_VDEVICE(TTI, 0x4311), (kernel_ulong_t)&hptiop_itl_ops },
1658 { PCI_VDEVICE(TTI, 0x4320), (kernel_ulong_t)&hptiop_itl_ops },
1659 { PCI_VDEVICE(TTI, 0x4321), (kernel_ulong_t)&hptiop_itl_ops },
1660 { PCI_VDEVICE(TTI, 0x4322), (kernel_ulong_t)&hptiop_itl_ops },
1661 { PCI_VDEVICE(TTI, 0x4400), (kernel_ulong_t)&hptiop_itl_ops },
1662 { PCI_VDEVICE(TTI, 0x3120), (kernel_ulong_t)&hptiop_mv_ops },
1663 { PCI_VDEVICE(TTI, 0x3122), (kernel_ulong_t)&hptiop_mv_ops },
1664 { PCI_VDEVICE(TTI, 0x3020), (kernel_ulong_t)&hptiop_mv_ops },
1665 { PCI_VDEVICE(TTI, 0x4520), (kernel_ulong_t)&hptiop_mvfrey_ops },
1666 { PCI_VDEVICE(TTI, 0x4522), (kernel_ulong_t)&hptiop_mvfrey_ops },
1667 { PCI_VDEVICE(TTI, 0x3610), (kernel_ulong_t)&hptiop_mvfrey_ops },
1668 { PCI_VDEVICE(TTI, 0x3611), (kernel_ulong_t)&hptiop_mvfrey_ops },
1669 { PCI_VDEVICE(TTI, 0x3620), (kernel_ulong_t)&hptiop_mvfrey_ops },
1670 { PCI_VDEVICE(TTI, 0x3622), (kernel_ulong_t)&hptiop_mvfrey_ops },
1671 { PCI_VDEVICE(TTI, 0x3640), (kernel_ulong_t)&hptiop_mvfrey_ops },
1672 { PCI_VDEVICE(TTI, 0x3660), (kernel_ulong_t)&hptiop_mvfrey_ops },
1673 { PCI_VDEVICE(TTI, 0x3680), (kernel_ulong_t)&hptiop_mvfrey_ops },
1674 { PCI_VDEVICE(TTI, 0x3690), (kernel_ulong_t)&hptiop_mvfrey_ops },
1675 {},
1676 };
1677
1678 MODULE_DEVICE_TABLE(pci, hptiop_id_table);
1679
1680 static struct pci_driver hptiop_pci_driver = {
1681 .name = driver_name,
1682 .id_table = hptiop_id_table,
1683 .probe = hptiop_probe,
1684 .remove = hptiop_remove,
1685 .shutdown = hptiop_shutdown,
1686 };
1687
1688 static int __init hptiop_module_init(void)
1689 {
1690 printk(KERN_INFO "%s %s\n", driver_name_long, driver_ver);
1691 return pci_register_driver(&hptiop_pci_driver);
1692 }
1693
1694 static void __exit hptiop_module_exit(void)
1695 {
1696 pci_unregister_driver(&hptiop_pci_driver);
1697 }
1698
1699
1700 module_init(hptiop_module_init);
1701 module_exit(hptiop_module_exit);
1702
1703 MODULE_LICENSE("GPL");
1704
Linux with added FPC-III support