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drm/tests: hdmi: Fix memory leaks in drm_display_mode_from_cea_vic()
[drm/drm-misc.git] / drivers / scsi / hptiop.c
blobe889f268601b4f7e43096b8fe5b1f6284ec2a476
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 = 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 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 {
998 struct Scsi_Host *host = scp->device->host;
999 struct hptiop_hba *hba = (struct hptiop_hba *)host->hostdata;
1000 struct hpt_iop_request_scsi_command *req;
1001 int sg_count = 0;
1002 struct hptiop_request *_req;
1003
1004 _req = get_req(hba);
1005 if (_req == NULL) {
1006 dprintk("hptiop_queuecmd : no free req\n");
1007 return SCSI_MLQUEUE_HOST_BUSY;
1008 }
1009
1010 _req->scp = scp;
1011
1012 dprintk("hptiop_queuecmd(scp=%p) %d/%d/%d/%llu cdb=(%08x-%08x-%08x-%08x) "
1013 "req_index=%d, req=%p\n",
1014 scp,
1015 host->host_no, scp->device->channel,
1016 scp->device->id, scp->device->lun,
1017 cpu_to_be32(((u32 *)scp->cmnd)[0]),
1018 cpu_to_be32(((u32 *)scp->cmnd)[1]),
1019 cpu_to_be32(((u32 *)scp->cmnd)[2]),
1020 cpu_to_be32(((u32 *)scp->cmnd)[3]),
1021 _req->index, _req->req_virt);
1022
1023 scp->result = 0;
1024
1025 if (scp->device->channel ||
1026 (scp->device->id > hba->max_devices) ||
1027 ((scp->device->id == (hba->max_devices-1)) && scp->device->lun)) {
1028 scp->result = DID_BAD_TARGET << 16;
1029 free_req(hba, _req);
1030 goto cmd_done;
1031 }
1032
1033 req = _req->req_virt;
1034
1035 /* build S/G table */
1036 sg_count = hptiop_buildsgl(scp, req->sg_list);
1037 if (!sg_count)
1038 HPT_SCP(scp)->mapped = 0;
1039
1040 req->header.flags = cpu_to_le32(IOP_REQUEST_FLAG_OUTPUT_CONTEXT);
1041 req->header.type = cpu_to_le32(IOP_REQUEST_TYPE_SCSI_COMMAND);
1042 req->header.result = cpu_to_le32(IOP_RESULT_PENDING);
1043 req->dataxfer_length = cpu_to_le32(scsi_bufflen(scp));
1044 req->channel = scp->device->channel;
1045 req->target = scp->device->id;
1046 req->lun = scp->device->lun;
1047 req->header.size = cpu_to_le32(struct_size(req, sg_list, sg_count));
1048
1049 memcpy(req->cdb, scp->cmnd, sizeof(req->cdb));
1050 hba->ops->post_req(hba, _req);
1051 return 0;
1052
1053 cmd_done:
1054 dprintk("scsi_done(scp=%p)\n", scp);
1055 scsi_done(scp);
1056 return 0;
1057 }
1058
1059 static DEF_SCSI_QCMD(hptiop_queuecommand)
1060
1061 static const char *hptiop_info(struct Scsi_Host *host)
1062 {
1063 return driver_name_long;
1064 }
1065
1066 static int hptiop_reset_hba(struct hptiop_hba *hba)
1067 {
1068 if (atomic_xchg(&hba->resetting, 1) == 0) {
1069 atomic_inc(&hba->reset_count);
1070 hba->ops->post_msg(hba, IOPMU_INBOUND_MSG0_RESET);
1071 }
1072
1073 wait_event_timeout(hba->reset_wq,
1074 atomic_read(&hba->resetting) == 0, 60 * HZ);
1075
1076 if (atomic_read(&hba->resetting)) {
1077 /* IOP is in unknown state, abort reset */
1078 printk(KERN_ERR "scsi%d: reset failed\n", hba->host->host_no);
1079 return -1;
1080 }
1081
1082 if (iop_send_sync_msg(hba,
1083 IOPMU_INBOUND_MSG0_START_BACKGROUND_TASK, 5000)) {
1084 dprintk("scsi%d: fail to start background task\n",
1085 hba->host->host_no);
1086 }
1087
1088 return 0;
1089 }
1090
1091 static int hptiop_reset(struct scsi_cmnd *scp)
1092 {
1093 struct hptiop_hba * hba = (struct hptiop_hba *)scp->device->host->hostdata;
1094
1095 printk(KERN_WARNING "hptiop_reset(%d/%d/%d)\n",
1096 scp->device->host->host_no, -1, -1);
1097
1098 return hptiop_reset_hba(hba)? FAILED : SUCCESS;
1099 }
1100
1101 static int hptiop_adjust_disk_queue_depth(struct scsi_device *sdev,
1102 int queue_depth)
1103 {
1104 struct hptiop_hba *hba = (struct hptiop_hba *)sdev->host->hostdata;
1105
1106 if (queue_depth > hba->max_requests)
1107 queue_depth = hba->max_requests;
1108 return scsi_change_queue_depth(sdev, queue_depth);
1109 }
1110
1111 static ssize_t hptiop_show_version(struct device *dev,
1112 struct device_attribute *attr, char *buf)
1113 {
1114 return snprintf(buf, PAGE_SIZE, "%s\n", driver_ver);
1115 }
1116
1117 static ssize_t hptiop_show_fw_version(struct device *dev,
1118 struct device_attribute *attr, char *buf)
1119 {
1120 struct Scsi_Host *host = class_to_shost(dev);
1121 struct hptiop_hba *hba = (struct hptiop_hba *)host->hostdata;
1122
1123 return snprintf(buf, PAGE_SIZE, "%d.%d.%d.%d\n",
1124 hba->firmware_version >> 24,
1125 (hba->firmware_version >> 16) & 0xff,
1126 (hba->firmware_version >> 8) & 0xff,
1127 hba->firmware_version & 0xff);
1128 }
1129
1130 static struct device_attribute hptiop_attr_version = {
1131 .attr = {
1132 .name = "driver-version",
1133 .mode = S_IRUGO,
1134 },
1135 .show = hptiop_show_version,
1136 };
1137
1138 static struct device_attribute hptiop_attr_fw_version = {
1139 .attr = {
1140 .name = "firmware-version",
1141 .mode = S_IRUGO,
1142 },
1143 .show = hptiop_show_fw_version,
1144 };
1145
1146 static struct attribute *hptiop_host_attrs[] = {
1147 &hptiop_attr_version.attr,
1148 &hptiop_attr_fw_version.attr,
1149 NULL
1150 };
1151
1152 ATTRIBUTE_GROUPS(hptiop_host);
1153
1154 static int hptiop_device_configure(struct scsi_device *sdev,
1155 struct queue_limits *lim)
1156 {
1157 if (sdev->type == TYPE_TAPE)
1158 lim->max_hw_sectors = 8192;
1159 return 0;
1160 }
1161
1162 static const struct scsi_host_template driver_template = {
1163 .module = THIS_MODULE,
1164 .name = driver_name,
1165 .queuecommand = hptiop_queuecommand,
1166 .eh_host_reset_handler = hptiop_reset,
1167 .info = hptiop_info,
1168 .emulated = 0,
1169 .proc_name = driver_name,
1170 .shost_groups = hptiop_host_groups,
1171 .device_configure = hptiop_device_configure,
1172 .this_id = -1,
1173 .change_queue_depth = hptiop_adjust_disk_queue_depth,
1174 .cmd_size = sizeof(struct hpt_cmd_priv),
1175 };
1176
1177 static int hptiop_internal_memalloc_itl(struct hptiop_hba *hba)
1178 {
1179 return 0;
1180 }
1181
1182 static int hptiop_internal_memalloc_mv(struct hptiop_hba *hba)
1183 {
1184 hba->u.mv.internal_req = dma_alloc_coherent(&hba->pcidev->dev,
1185 0x800, &hba->u.mv.internal_req_phy, GFP_KERNEL);
1186 if (hba->u.mv.internal_req)
1187 return 0;
1188 else
1189 return -1;
1190 }
1191
1192 static int hptiop_internal_memalloc_mvfrey(struct hptiop_hba *hba)
1193 {
1194 u32 list_count = readl(&hba->u.mvfrey.mu->inbound_conf_ctl);
1195 char *p;
1196 dma_addr_t phy;
1197
1198 BUG_ON(hba->max_request_size == 0);
1199
1200 if (list_count == 0) {
1201 BUG_ON(1);
1202 return -1;
1203 }
1204
1205 list_count >>= 16;
1206
1207 hba->u.mvfrey.list_count = list_count;
1208 hba->u.mvfrey.internal_mem_size = 0x800 +
1209 list_count * sizeof(struct mvfrey_inlist_entry) +
1210 list_count * sizeof(struct mvfrey_outlist_entry) +
1211 sizeof(int);
1212
1213 p = dma_alloc_coherent(&hba->pcidev->dev,
1214 hba->u.mvfrey.internal_mem_size, &phy, GFP_KERNEL);
1215 if (!p)
1216 return -1;
1217
1218 hba->u.mvfrey.internal_req.req_virt = p;
1219 hba->u.mvfrey.internal_req.req_shifted_phy = phy >> 5;
1220 hba->u.mvfrey.internal_req.scp = NULL;
1221 hba->u.mvfrey.internal_req.next = NULL;
1222
1223 p += 0x800;
1224 phy += 0x800;
1225
1226 hba->u.mvfrey.inlist = (struct mvfrey_inlist_entry *)p;
1227 hba->u.mvfrey.inlist_phy = phy;
1228
1229 p += list_count * sizeof(struct mvfrey_inlist_entry);
1230 phy += list_count * sizeof(struct mvfrey_inlist_entry);
1231
1232 hba->u.mvfrey.outlist = (struct mvfrey_outlist_entry *)p;
1233 hba->u.mvfrey.outlist_phy = phy;
1234
1235 p += list_count * sizeof(struct mvfrey_outlist_entry);
1236 phy += list_count * sizeof(struct mvfrey_outlist_entry);
1237
1238 hba->u.mvfrey.outlist_cptr = (__le32 *)p;
1239 hba->u.mvfrey.outlist_cptr_phy = phy;
1240
1241 return 0;
1242 }
1243
1244 static int hptiop_internal_memfree_itl(struct hptiop_hba *hba)
1245 {
1246 return 0;
1247 }
1248
1249 static int hptiop_internal_memfree_mv(struct hptiop_hba *hba)
1250 {
1251 if (hba->u.mv.internal_req) {
1252 dma_free_coherent(&hba->pcidev->dev, 0x800,
1253 hba->u.mv.internal_req, hba->u.mv.internal_req_phy);
1254 return 0;
1255 } else
1256 return -1;
1257 }
1258
1259 static int hptiop_internal_memfree_mvfrey(struct hptiop_hba *hba)
1260 {
1261 if (hba->u.mvfrey.internal_req.req_virt) {
1262 dma_free_coherent(&hba->pcidev->dev,
1263 hba->u.mvfrey.internal_mem_size,
1264 hba->u.mvfrey.internal_req.req_virt,
1265 (dma_addr_t)
1266 hba->u.mvfrey.internal_req.req_shifted_phy << 5);
1267 return 0;
1268 } else
1269 return -1;
1270 }
1271
1272 static int hptiop_probe(struct pci_dev *pcidev, const struct pci_device_id *id)
1273 {
1274 struct Scsi_Host *host = NULL;
1275 struct hptiop_hba *hba;
1276 struct hptiop_adapter_ops *iop_ops;
1277 struct hpt_iop_request_get_config iop_config;
1278 struct hpt_iop_request_set_config set_config;
1279 dma_addr_t start_phy;
1280 void *start_virt;
1281 u32 offset, i, req_size;
1282 int rc;
1283
1284 dprintk("hptiop_probe(%p)\n", pcidev);
1285
1286 if (pci_enable_device(pcidev)) {
1287 printk(KERN_ERR "hptiop: fail to enable pci device\n");
1288 return -ENODEV;
1289 }
1290
1291 printk(KERN_INFO "adapter at PCI %d:%d:%d, IRQ %d\n",
1292 pcidev->bus->number, pcidev->devfn >> 3, pcidev->devfn & 7,
1293 pcidev->irq);
1294
1295 pci_set_master(pcidev);
1296
1297 /* Enable 64bit DMA if possible */
1298 iop_ops = (struct hptiop_adapter_ops *)id->driver_data;
1299 rc = dma_set_mask(&pcidev->dev,
1300 DMA_BIT_MASK(iop_ops->hw_dma_bit_mask));
1301 if (rc)
1302 rc = dma_set_mask(&pcidev->dev, DMA_BIT_MASK(32));
1303
1304 if (rc) {
1305 printk(KERN_ERR "hptiop: fail to set dma_mask\n");
1306 goto disable_pci_device;
1307 }
1308
1309 if (pci_request_regions(pcidev, driver_name)) {
1310 printk(KERN_ERR "hptiop: pci_request_regions failed\n");
1311 goto disable_pci_device;
1312 }
1313
1314 host = scsi_host_alloc(&driver_template, sizeof(struct hptiop_hba));
1315 if (!host) {
1316 printk(KERN_ERR "hptiop: fail to alloc scsi host\n");
1317 goto free_pci_regions;
1318 }
1319
1320 hba = (struct hptiop_hba *)host->hostdata;
1321 memset(hba, 0, sizeof(struct hptiop_hba));
1322
1323 hba->ops = iop_ops;
1324 hba->pcidev = pcidev;
1325 hba->host = host;
1326 hba->initialized = 0;
1327 hba->iopintf_v2 = 0;
1328
1329 atomic_set(&hba->resetting, 0);
1330 atomic_set(&hba->reset_count, 0);
1331
1332 init_waitqueue_head(&hba->reset_wq);
1333 init_waitqueue_head(&hba->ioctl_wq);
1334
1335 host->max_lun = 128;
1336 host->max_channel = 0;
1337 host->io_port = 0;
1338 host->n_io_port = 0;
1339 host->irq = pcidev->irq;
1340
1341 if (hba->ops->map_pci_bar(hba))
1342 goto free_scsi_host;
1343
1344 if (hba->ops->iop_wait_ready(hba, 20000)) {
1345 printk(KERN_ERR "scsi%d: firmware not ready\n",
1346 hba->host->host_no);
1347 goto unmap_pci_bar;
1348 }
1349
1350 if (hba->ops->family == MV_BASED_IOP) {
1351 if (hba->ops->internal_memalloc(hba)) {
1352 printk(KERN_ERR "scsi%d: internal_memalloc failed\n",
1353 hba->host->host_no);
1354 goto unmap_pci_bar;
1355 }
1356 }
1357
1358 if (hba->ops->get_config(hba, &iop_config)) {
1359 printk(KERN_ERR "scsi%d: get config failed\n",
1360 hba->host->host_no);
1361 goto unmap_pci_bar;
1362 }
1363
1364 hba->max_requests = min(le32_to_cpu(iop_config.max_requests),
1365 HPTIOP_MAX_REQUESTS);
1366 hba->max_devices = le32_to_cpu(iop_config.max_devices);
1367 hba->max_request_size = le32_to_cpu(iop_config.request_size);
1368 hba->max_sg_descriptors = le32_to_cpu(iop_config.max_sg_count);
1369 hba->firmware_version = le32_to_cpu(iop_config.firmware_version);
1370 hba->interface_version = le32_to_cpu(iop_config.interface_version);
1371 hba->sdram_size = le32_to_cpu(iop_config.sdram_size);
1372
1373 if (hba->ops->family == MVFREY_BASED_IOP) {
1374 if (hba->ops->internal_memalloc(hba)) {
1375 printk(KERN_ERR "scsi%d: internal_memalloc failed\n",
1376 hba->host->host_no);
1377 goto unmap_pci_bar;
1378 }
1379 if (hba->ops->reset_comm(hba)) {
1380 printk(KERN_ERR "scsi%d: reset comm failed\n",
1381 hba->host->host_no);
1382 goto unmap_pci_bar;
1383 }
1384 }
1385
1386 if (hba->firmware_version > 0x01020000 ||
1387 hba->interface_version > 0x01020000)
1388 hba->iopintf_v2 = 1;
1389
1390 host->max_sectors = le32_to_cpu(iop_config.data_transfer_length) >> 9;
1391 host->max_id = le32_to_cpu(iop_config.max_devices);
1392 host->sg_tablesize = le32_to_cpu(iop_config.max_sg_count);
1393 host->can_queue = le32_to_cpu(iop_config.max_requests);
1394 host->cmd_per_lun = le32_to_cpu(iop_config.max_requests);
1395 host->max_cmd_len = 16;
1396
1397 req_size = struct_size_t(struct hpt_iop_request_scsi_command,
1398 sg_list, hba->max_sg_descriptors);
1399 if ((req_size & 0x1f) != 0)
1400 req_size = (req_size + 0x1f) & ~0x1f;
1401
1402 memset(&set_config, 0, sizeof(struct hpt_iop_request_set_config));
1403 set_config.iop_id = cpu_to_le32(host->host_no);
1404 set_config.vbus_id = cpu_to_le16(host->host_no);
1405 set_config.max_host_request_size = cpu_to_le16(req_size);
1406
1407 if (hba->ops->set_config(hba, &set_config)) {
1408 printk(KERN_ERR "scsi%d: set config failed\n",
1409 hba->host->host_no);
1410 goto unmap_pci_bar;
1411 }
1412
1413 pci_set_drvdata(pcidev, host);
1414
1415 if (request_irq(pcidev->irq, hptiop_intr, IRQF_SHARED,
1416 driver_name, hba)) {
1417 printk(KERN_ERR "scsi%d: request irq %d failed\n",
1418 hba->host->host_no, pcidev->irq);
1419 goto unmap_pci_bar;
1420 }
1421
1422 /* Allocate request mem */
1423
1424 dprintk("req_size=%d, max_requests=%d\n", req_size, hba->max_requests);
1425
1426 hba->req_size = req_size;
1427 hba->req_list = NULL;
1428
1429 for (i = 0; i < hba->max_requests; i++) {
1430 start_virt = dma_alloc_coherent(&pcidev->dev,
1431 hba->req_size + 0x20,
1432 &start_phy, GFP_KERNEL);
1433
1434 if (!start_virt) {
1435 printk(KERN_ERR "scsi%d: fail to alloc request mem\n",
1436 hba->host->host_no);
1437 goto free_request_mem;
1438 }
1439
1440 hba->dma_coherent[i] = start_virt;
1441 hba->dma_coherent_handle[i] = start_phy;
1442
1443 if ((start_phy & 0x1f) != 0) {
1444 offset = ((start_phy + 0x1f) & ~0x1f) - start_phy;
1445 start_phy += offset;
1446 start_virt += offset;
1447 }
1448
1449 hba->reqs[i].next = NULL;
1450 hba->reqs[i].req_virt = start_virt;
1451 hba->reqs[i].req_shifted_phy = start_phy >> 5;
1452 hba->reqs[i].index = i;
1453 free_req(hba, &hba->reqs[i]);
1454 }
1455
1456 /* Enable Interrupt and start background task */
1457 if (hptiop_initialize_iop(hba))
1458 goto free_request_mem;
1459
1460 if (scsi_add_host(host, &pcidev->dev)) {
1461 printk(KERN_ERR "scsi%d: scsi_add_host failed\n",
1462 hba->host->host_no);
1463 goto free_request_mem;
1464 }
1465
1466 scsi_scan_host(host);
1467
1468 dprintk("scsi%d: hptiop_probe successfully\n", hba->host->host_no);
1469 return 0;
1470
1471 free_request_mem:
1472 for (i = 0; i < hba->max_requests; i++) {
1473 if (hba->dma_coherent[i] && hba->dma_coherent_handle[i])
1474 dma_free_coherent(&hba->pcidev->dev,
1475 hba->req_size + 0x20,
1476 hba->dma_coherent[i],
1477 hba->dma_coherent_handle[i]);
1478 else
1479 break;
1480 }
1481
1482 free_irq(hba->pcidev->irq, hba);
1483
1484 unmap_pci_bar:
1485 hba->ops->internal_memfree(hba);
1486
1487 hba->ops->unmap_pci_bar(hba);
1488
1489 free_scsi_host:
1490 scsi_host_put(host);
1491
1492 free_pci_regions:
1493 pci_release_regions(pcidev);
1494
1495 disable_pci_device:
1496 pci_disable_device(pcidev);
1497
1498 dprintk("scsi%d: hptiop_probe fail\n", host ? host->host_no : 0);
1499 return -ENODEV;
1500 }
1501
1502 static void hptiop_shutdown(struct pci_dev *pcidev)
1503 {
1504 struct Scsi_Host *host = pci_get_drvdata(pcidev);
1505 struct hptiop_hba *hba = (struct hptiop_hba *)host->hostdata;
1506
1507 dprintk("hptiop_shutdown(%p)\n", hba);
1508
1509 /* stop the iop */
1510 if (iop_send_sync_msg(hba, IOPMU_INBOUND_MSG0_SHUTDOWN, 60000))
1511 printk(KERN_ERR "scsi%d: shutdown the iop timeout\n",
1512 hba->host->host_no);
1513
1514 /* disable all outbound interrupts */
1515 hba->ops->disable_intr(hba);
1516 }
1517
1518 static void hptiop_disable_intr_itl(struct hptiop_hba *hba)
1519 {
1520 u32 int_mask;
1521
1522 int_mask = readl(&hba->u.itl.iop->outbound_intmask);
1523 writel(int_mask |
1524 IOPMU_OUTBOUND_INT_MSG0 | IOPMU_OUTBOUND_INT_POSTQUEUE,
1525 &hba->u.itl.iop->outbound_intmask);
1526 readl(&hba->u.itl.iop->outbound_intmask);
1527 }
1528
1529 static void hptiop_disable_intr_mv(struct hptiop_hba *hba)
1530 {
1531 writel(0, &hba->u.mv.regs->outbound_intmask);
1532 readl(&hba->u.mv.regs->outbound_intmask);
1533 }
1534
1535 static void hptiop_disable_intr_mvfrey(struct hptiop_hba *hba)
1536 {
1537 writel(0, &(hba->u.mvfrey.mu->f0_doorbell_enable));
1538 readl(&(hba->u.mvfrey.mu->f0_doorbell_enable));
1539 writel(0, &(hba->u.mvfrey.mu->isr_enable));
1540 readl(&(hba->u.mvfrey.mu->isr_enable));
1541 writel(0, &(hba->u.mvfrey.mu->pcie_f0_int_enable));
1542 readl(&(hba->u.mvfrey.mu->pcie_f0_int_enable));
1543 }
1544
1545 static void hptiop_remove(struct pci_dev *pcidev)
1546 {
1547 struct Scsi_Host *host = pci_get_drvdata(pcidev);
1548 struct hptiop_hba *hba = (struct hptiop_hba *)host->hostdata;
1549 u32 i;
1550
1551 dprintk("scsi%d: hptiop_remove\n", hba->host->host_no);
1552
1553 scsi_remove_host(host);
1554
1555 hptiop_shutdown(pcidev);
1556
1557 free_irq(hba->pcidev->irq, hba);
1558
1559 for (i = 0; i < hba->max_requests; i++) {
1560 if (hba->dma_coherent[i] && hba->dma_coherent_handle[i])
1561 dma_free_coherent(&hba->pcidev->dev,
1562 hba->req_size + 0x20,
1563 hba->dma_coherent[i],
1564 hba->dma_coherent_handle[i]);
1565 else
1566 break;
1567 }
1568
1569 hba->ops->internal_memfree(hba);
1570
1571 hba->ops->unmap_pci_bar(hba);
1572
1573 pci_release_regions(hba->pcidev);
1574 pci_set_drvdata(hba->pcidev, NULL);
1575 pci_disable_device(hba->pcidev);
1576
1577 scsi_host_put(host);
1578 }
1579
1580 static struct hptiop_adapter_ops hptiop_itl_ops = {
1581 .family = INTEL_BASED_IOP,
1582 .iop_wait_ready = iop_wait_ready_itl,
1583 .internal_memalloc = hptiop_internal_memalloc_itl,
1584 .internal_memfree = hptiop_internal_memfree_itl,
1585 .map_pci_bar = hptiop_map_pci_bar_itl,
1586 .unmap_pci_bar = hptiop_unmap_pci_bar_itl,
1587 .enable_intr = hptiop_enable_intr_itl,
1588 .disable_intr = hptiop_disable_intr_itl,
1589 .get_config = iop_get_config_itl,
1590 .set_config = iop_set_config_itl,
1591 .iop_intr = iop_intr_itl,
1592 .post_msg = hptiop_post_msg_itl,
1593 .post_req = hptiop_post_req_itl,
1594 .hw_dma_bit_mask = 64,
1595 .reset_comm = hptiop_reset_comm_itl,
1596 .host_phy_flag = cpu_to_le64(0),
1597 };
1598
1599 static struct hptiop_adapter_ops hptiop_mv_ops = {
1600 .family = MV_BASED_IOP,
1601 .iop_wait_ready = iop_wait_ready_mv,
1602 .internal_memalloc = hptiop_internal_memalloc_mv,
1603 .internal_memfree = hptiop_internal_memfree_mv,
1604 .map_pci_bar = hptiop_map_pci_bar_mv,
1605 .unmap_pci_bar = hptiop_unmap_pci_bar_mv,
1606 .enable_intr = hptiop_enable_intr_mv,
1607 .disable_intr = hptiop_disable_intr_mv,
1608 .get_config = iop_get_config_mv,
1609 .set_config = iop_set_config_mv,
1610 .iop_intr = iop_intr_mv,
1611 .post_msg = hptiop_post_msg_mv,
1612 .post_req = hptiop_post_req_mv,
1613 .hw_dma_bit_mask = 33,
1614 .reset_comm = hptiop_reset_comm_mv,
1615 .host_phy_flag = cpu_to_le64(0),
1616 };
1617
1618 static struct hptiop_adapter_ops hptiop_mvfrey_ops = {
1619 .family = MVFREY_BASED_IOP,
1620 .iop_wait_ready = iop_wait_ready_mvfrey,
1621 .internal_memalloc = hptiop_internal_memalloc_mvfrey,
1622 .internal_memfree = hptiop_internal_memfree_mvfrey,
1623 .map_pci_bar = hptiop_map_pci_bar_mvfrey,
1624 .unmap_pci_bar = hptiop_unmap_pci_bar_mvfrey,
1625 .enable_intr = hptiop_enable_intr_mvfrey,
1626 .disable_intr = hptiop_disable_intr_mvfrey,
1627 .get_config = iop_get_config_mvfrey,
1628 .set_config = iop_set_config_mvfrey,
1629 .iop_intr = iop_intr_mvfrey,
1630 .post_msg = hptiop_post_msg_mvfrey,
1631 .post_req = hptiop_post_req_mvfrey,
1632 .hw_dma_bit_mask = 64,
1633 .reset_comm = hptiop_reset_comm_mvfrey,
1634 .host_phy_flag = cpu_to_le64(1),
1635 };
1636
1637 static struct pci_device_id hptiop_id_table[] = {
1638 { PCI_VDEVICE(TTI, 0x3220), (kernel_ulong_t)&hptiop_itl_ops },
1639 { PCI_VDEVICE(TTI, 0x3320), (kernel_ulong_t)&hptiop_itl_ops },
1640 { PCI_VDEVICE(TTI, 0x3410), (kernel_ulong_t)&hptiop_itl_ops },
1641 { PCI_VDEVICE(TTI, 0x3510), (kernel_ulong_t)&hptiop_itl_ops },
1642 { PCI_VDEVICE(TTI, 0x3511), (kernel_ulong_t)&hptiop_itl_ops },
1643 { PCI_VDEVICE(TTI, 0x3520), (kernel_ulong_t)&hptiop_itl_ops },
1644 { PCI_VDEVICE(TTI, 0x3521), (kernel_ulong_t)&hptiop_itl_ops },
1645 { PCI_VDEVICE(TTI, 0x3522), (kernel_ulong_t)&hptiop_itl_ops },
1646 { PCI_VDEVICE(TTI, 0x3530), (kernel_ulong_t)&hptiop_itl_ops },
1647 { PCI_VDEVICE(TTI, 0x3540), (kernel_ulong_t)&hptiop_itl_ops },
1648 { PCI_VDEVICE(TTI, 0x3560), (kernel_ulong_t)&hptiop_itl_ops },
1649 { PCI_VDEVICE(TTI, 0x4210), (kernel_ulong_t)&hptiop_itl_ops },
1650 { PCI_VDEVICE(TTI, 0x4211), (kernel_ulong_t)&hptiop_itl_ops },
1651 { PCI_VDEVICE(TTI, 0x4310), (kernel_ulong_t)&hptiop_itl_ops },
1652 { PCI_VDEVICE(TTI, 0x4311), (kernel_ulong_t)&hptiop_itl_ops },
1653 { PCI_VDEVICE(TTI, 0x4320), (kernel_ulong_t)&hptiop_itl_ops },
1654 { PCI_VDEVICE(TTI, 0x4321), (kernel_ulong_t)&hptiop_itl_ops },
1655 { PCI_VDEVICE(TTI, 0x4322), (kernel_ulong_t)&hptiop_itl_ops },
1656 { PCI_VDEVICE(TTI, 0x4400), (kernel_ulong_t)&hptiop_itl_ops },
1657 { PCI_VDEVICE(TTI, 0x3120), (kernel_ulong_t)&hptiop_mv_ops },
1658 { PCI_VDEVICE(TTI, 0x3122), (kernel_ulong_t)&hptiop_mv_ops },
1659 { PCI_VDEVICE(TTI, 0x3020), (kernel_ulong_t)&hptiop_mv_ops },
1660 { PCI_VDEVICE(TTI, 0x4520), (kernel_ulong_t)&hptiop_mvfrey_ops },
1661 { PCI_VDEVICE(TTI, 0x4522), (kernel_ulong_t)&hptiop_mvfrey_ops },
1662 { PCI_VDEVICE(TTI, 0x3610), (kernel_ulong_t)&hptiop_mvfrey_ops },
1663 { PCI_VDEVICE(TTI, 0x3611), (kernel_ulong_t)&hptiop_mvfrey_ops },
1664 { PCI_VDEVICE(TTI, 0x3620), (kernel_ulong_t)&hptiop_mvfrey_ops },
1665 { PCI_VDEVICE(TTI, 0x3622), (kernel_ulong_t)&hptiop_mvfrey_ops },
1666 { PCI_VDEVICE(TTI, 0x3640), (kernel_ulong_t)&hptiop_mvfrey_ops },
1667 { PCI_VDEVICE(TTI, 0x3660), (kernel_ulong_t)&hptiop_mvfrey_ops },
1668 { PCI_VDEVICE(TTI, 0x3680), (kernel_ulong_t)&hptiop_mvfrey_ops },
1669 { PCI_VDEVICE(TTI, 0x3690), (kernel_ulong_t)&hptiop_mvfrey_ops },
1670 {},
1671 };
1672
1673 MODULE_DEVICE_TABLE(pci, hptiop_id_table);
1674
1675 static struct pci_driver hptiop_pci_driver = {
1676 .name = driver_name,
1677 .id_table = hptiop_id_table,
1678 .probe = hptiop_probe,
1679 .remove = hptiop_remove,
1680 .shutdown = hptiop_shutdown,
1681 };
1682
1683 static int __init hptiop_module_init(void)
1684 {
1685 printk(KERN_INFO "%s %s\n", driver_name_long, driver_ver);
1686 return pci_register_driver(&hptiop_pci_driver);
1687 }
1688
1689 static void __exit hptiop_module_exit(void)
1690 {
1691 pci_unregister_driver(&hptiop_pci_driver);
1692 }
1693
1694
1695 module_init(hptiop_module_init);
1696 module_exit(hptiop_module_exit);
1697
1698 MODULE_LICENSE("GPL");
1699
Kernel DRM miscellaneous fixes and cross-tree changes