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-rw-r--r--drivers/scsi/hptiop.c1501
1 files changed, 1501 insertions, 0 deletions
diff --git a/drivers/scsi/hptiop.c b/drivers/scsi/hptiop.c
new file mode 100644
index 000000000000..8302f3ba31ce
--- /dev/null
+++ b/drivers/scsi/hptiop.c
@@ -0,0 +1,1501 @@
1/*
2 * HighPoint RR3xxx controller driver for Linux
3 * Copyright (C) 2006 HighPoint Technologies, Inc. All Rights Reserved.
4 *
5 * This program is free software; you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License as published by
7 * the Free Software Foundation; version 2 of the License.
8 *
9 * This program is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 * GNU General Public License for more details.
13 *
14 * Please report bugs/comments/suggestions to linux@highpoint-tech.com
15 *
16 * For more information, visit http://www.highpoint-tech.com
17 */
18#include <linux/config.h>
19#include <linux/module.h>
20#include <linux/types.h>
21#include <linux/string.h>
22#include <linux/kernel.h>
23#include <linux/pci.h>
24#include <linux/interrupt.h>
25#include <linux/errno.h>
26#include <linux/delay.h>
27#include <linux/timer.h>
28#include <linux/spinlock.h>
29#include <linux/hdreg.h>
30#include <asm/uaccess.h>
31#include <asm/io.h>
32#include <asm/div64.h>
33#include <scsi/scsi_cmnd.h>
34#include <scsi/scsi_device.h>
35#include <scsi/scsi.h>
36#include <scsi/scsi_tcq.h>
37#include <scsi/scsi_host.h>
38
39#include "hptiop.h"
40
41MODULE_AUTHOR("HighPoint Technologies, Inc.");
42MODULE_DESCRIPTION("HighPoint RocketRAID 3xxx SATA Controller Driver");
43
44static char driver_name[] = "hptiop";
45static const char driver_name_long[] = "RocketRAID 3xxx SATA Controller driver";
46static const char driver_ver[] = "v1.0 (060426)";
47
48static DEFINE_SPINLOCK(hptiop_hba_list_lock);
49static LIST_HEAD(hptiop_hba_list);
50static int hptiop_cdev_major = -1;
51
52static void hptiop_host_request_callback(struct hptiop_hba *hba, u32 tag);
53static void hptiop_iop_request_callback(struct hptiop_hba *hba, u32 tag);
54static void hptiop_message_callback(struct hptiop_hba *hba, u32 msg);
55
56static inline void hptiop_pci_posting_flush(struct hpt_iopmu __iomem *iop)
57{
58 readl(&iop->outbound_intstatus);
59}
60
61static int iop_wait_ready(struct hpt_iopmu __iomem *iop, u32 millisec)
62{
63 u32 req = 0;
64 int i;
65
66 for (i = 0; i < millisec; i++) {
67 req = readl(&iop->inbound_queue);
68 if (req != IOPMU_QUEUE_EMPTY)
69 break;
70 msleep(1);
71 }
72
73 if (req != IOPMU_QUEUE_EMPTY) {
74 writel(req, &iop->outbound_queue);
75 hptiop_pci_posting_flush(iop);
76 return 0;
77 }
78
79 return -1;
80}
81
82static void hptiop_request_callback(struct hptiop_hba *hba, u32 tag)
83{
84 if ((tag & IOPMU_QUEUE_MASK_HOST_BITS) == IOPMU_QUEUE_ADDR_HOST_BIT)
85 return hptiop_host_request_callback(hba,
86 tag & ~IOPMU_QUEUE_ADDR_HOST_BIT);
87 else
88 return hptiop_iop_request_callback(hba, tag);
89}
90
91static inline void hptiop_drain_outbound_queue(struct hptiop_hba *hba)
92{
93 u32 req;
94
95 while ((req = readl(&hba->iop->outbound_queue)) != IOPMU_QUEUE_EMPTY) {
96
97 if (req & IOPMU_QUEUE_MASK_HOST_BITS)
98 hptiop_request_callback(hba, req);
99 else {
100 struct hpt_iop_request_header __iomem * p;
101
102 p = (struct hpt_iop_request_header __iomem *)
103 ((char __iomem *)hba->iop + req);
104
105 if (readl(&p->flags) & IOP_REQUEST_FLAG_SYNC_REQUEST) {
106 if (readl(&p->context))
107 hptiop_request_callback(hba, req);
108 else
109 writel(1, &p->context);
110 }
111 else
112 hptiop_request_callback(hba, req);
113 }
114 }
115}
116
117static int __iop_intr(struct hptiop_hba *hba)
118{
119 struct hpt_iopmu __iomem *iop = hba->iop;
120 u32 status;
121 int ret = 0;
122
123 status = readl(&iop->outbound_intstatus);
124
125 if (status & IOPMU_OUTBOUND_INT_MSG0) {
126 u32 msg = readl(&iop->outbound_msgaddr0);
127 dprintk("received outbound msg %x\n", msg);
128 writel(IOPMU_OUTBOUND_INT_MSG0, &iop->outbound_intstatus);
129 hptiop_message_callback(hba, msg);
130 ret = 1;
131 }
132
133 if (status & IOPMU_OUTBOUND_INT_POSTQUEUE) {
134 hptiop_drain_outbound_queue(hba);
135 ret = 1;
136 }
137
138 return ret;
139}
140
141static int iop_send_sync_request(struct hptiop_hba *hba,
142 void __iomem *_req, u32 millisec)
143{
144 struct hpt_iop_request_header __iomem *req = _req;
145 u32 i;
146
147 writel(readl(&req->flags) | IOP_REQUEST_FLAG_SYNC_REQUEST,
148 &req->flags);
149
150 writel(0, &req->context);
151
152 writel((unsigned long)req - (unsigned long)hba->iop,
153 &hba->iop->inbound_queue);
154
155 hptiop_pci_posting_flush(hba->iop);
156
157 for (i = 0; i < millisec; i++) {
158 __iop_intr(hba);
159 if (readl(&req->context))
160 return 0;
161 msleep(1);
162 }
163
164 return -1;
165}
166
167static int iop_send_sync_msg(struct hptiop_hba *hba, u32 msg, u32 millisec)
168{
169 u32 i;
170
171 hba->msg_done = 0;
172
173 writel(msg, &hba->iop->inbound_msgaddr0);
174
175 hptiop_pci_posting_flush(hba->iop);
176
177 for (i = 0; i < millisec; i++) {
178 spin_lock_irq(hba->host->host_lock);
179 __iop_intr(hba);
180 spin_unlock_irq(hba->host->host_lock);
181 if (hba->msg_done)
182 break;
183 msleep(1);
184 }
185
186 return hba->msg_done? 0 : -1;
187}
188
189static int iop_get_config(struct hptiop_hba *hba,
190 struct hpt_iop_request_get_config *config)
191{
192 u32 req32;
193 struct hpt_iop_request_get_config __iomem *req;
194
195 req32 = readl(&hba->iop->inbound_queue);
196 if (req32 == IOPMU_QUEUE_EMPTY)
197 return -1;
198
199 req = (struct hpt_iop_request_get_config __iomem *)
200 ((unsigned long)hba->iop + req32);
201
202 writel(0, &req->header.flags);
203 writel(IOP_REQUEST_TYPE_GET_CONFIG, &req->header.type);
204 writel(sizeof(struct hpt_iop_request_get_config), &req->header.size);
205 writel(IOP_RESULT_PENDING, &req->header.result);
206
207 if (iop_send_sync_request(hba, req, 20000)) {
208 dprintk("Get config send cmd failed\n");
209 return -1;
210 }
211
212 memcpy_fromio(config, req, sizeof(*config));
213 writel(req32, &hba->iop->outbound_queue);
214 return 0;
215}
216
217static int iop_set_config(struct hptiop_hba *hba,
218 struct hpt_iop_request_set_config *config)
219{
220 u32 req32;
221 struct hpt_iop_request_set_config __iomem *req;
222
223 req32 = readl(&hba->iop->inbound_queue);
224 if (req32 == IOPMU_QUEUE_EMPTY)
225 return -1;
226
227 req = (struct hpt_iop_request_set_config __iomem *)
228 ((unsigned long)hba->iop + req32);
229
230 memcpy_toio((u8 __iomem *)req + sizeof(struct hpt_iop_request_header),
231 (u8 *)config + sizeof(struct hpt_iop_request_header),
232 sizeof(struct hpt_iop_request_set_config) -
233 sizeof(struct hpt_iop_request_header));
234
235 writel(0, &req->header.flags);
236 writel(IOP_REQUEST_TYPE_SET_CONFIG, &req->header.type);
237 writel(sizeof(struct hpt_iop_request_set_config), &req->header.size);
238 writel(IOP_RESULT_PENDING, &req->header.result);
239
240 if (iop_send_sync_request(hba, req, 20000)) {
241 dprintk("Set config send cmd failed\n");
242 return -1;
243 }
244
245 writel(req32, &hba->iop->outbound_queue);
246 return 0;
247}
248
249static int hptiop_initialize_iop(struct hptiop_hba *hba)
250{
251 struct hpt_iopmu __iomem *iop = hba->iop;
252
253 /* enable interrupts */
254 writel(~(IOPMU_OUTBOUND_INT_POSTQUEUE | IOPMU_OUTBOUND_INT_MSG0),
255 &iop->outbound_intmask);
256
257 hba->initialized = 1;
258
259 /* start background tasks */
260 if (iop_send_sync_msg(hba,
261 IOPMU_INBOUND_MSG0_START_BACKGROUND_TASK, 5000)) {
262 printk(KERN_ERR "scsi%d: fail to start background task\n",
263 hba->host->host_no);
264 return -1;
265 }
266 return 0;
267}
268
269static int hptiop_map_pci_bar(struct hptiop_hba *hba)
270{
271 u32 mem_base_phy, length;
272 void __iomem *mem_base_virt;
273 struct pci_dev *pcidev = hba->pcidev;
274
275 if (!(pci_resource_flags(pcidev, 0) & IORESOURCE_MEM)) {
276 printk(KERN_ERR "scsi%d: pci resource invalid\n",
277 hba->host->host_no);
278 return -1;
279 }
280
281 mem_base_phy = pci_resource_start(pcidev, 0);
282 length = pci_resource_len(pcidev, 0);
283 mem_base_virt = ioremap(mem_base_phy, length);
284
285 if (!mem_base_virt) {
286 printk(KERN_ERR "scsi%d: Fail to ioremap memory space\n",
287 hba->host->host_no);
288 return -1;
289 }
290
291 hba->iop = mem_base_virt;
292 dprintk("hptiop_map_pci_bar: iop=%p\n", hba->iop);
293 return 0;
294}
295
296static void hptiop_message_callback(struct hptiop_hba *hba, u32 msg)
297{
298 dprintk("iop message 0x%x\n", msg);
299
300 if (!hba->initialized)
301 return;
302
303 if (msg == IOPMU_INBOUND_MSG0_RESET) {
304 atomic_set(&hba->resetting, 0);
305 wake_up(&hba->reset_wq);
306 }
307 else if (msg <= IOPMU_INBOUND_MSG0_MAX)
308 hba->msg_done = 1;
309}
310
311static inline struct hptiop_request *get_req(struct hptiop_hba *hba)
312{
313 struct hptiop_request *ret;
314
315 dprintk("get_req : req=%p\n", hba->req_list);
316
317 ret = hba->req_list;
318 if (ret)
319 hba->req_list = ret->next;
320
321 return ret;
322}
323
324static inline void free_req(struct hptiop_hba *hba, struct hptiop_request *req)
325{
326 dprintk("free_req(%d, %p)\n", req->index, req);
327 req->next = hba->req_list;
328 hba->req_list = req;
329}
330
331static void hptiop_host_request_callback(struct hptiop_hba *hba, u32 tag)
332{
333 struct hpt_iop_request_scsi_command *req;
334 struct scsi_cmnd *scp;
335
336 req = (struct hpt_iop_request_scsi_command *)hba->reqs[tag].req_virt;
337 dprintk("hptiop_host_request_callback: req=%p, type=%d, "
338 "result=%d, context=0x%x tag=%d\n",
339 req, req->header.type, req->header.result,
340 req->header.context, tag);
341
342 BUG_ON(!req->header.result);
343 BUG_ON(req->header.type != cpu_to_le32(IOP_REQUEST_TYPE_SCSI_COMMAND));
344
345 scp = hba->reqs[tag].scp;
346
347 if (HPT_SCP(scp)->mapped) {
348 if (scp->use_sg)
349 pci_unmap_sg(hba->pcidev,
350 (struct scatterlist *)scp->request_buffer,
351 scp->use_sg,
352 scp->sc_data_direction
353 );
354 else
355 pci_unmap_single(hba->pcidev,
356 HPT_SCP(scp)->dma_handle,
357 scp->request_bufflen,
358 scp->sc_data_direction
359 );
360 }
361
362 switch (le32_to_cpu(req->header.result)) {
363 case IOP_RESULT_SUCCESS:
364 scp->result = (DID_OK<<16);
365 break;
366 case IOP_RESULT_BAD_TARGET:
367 scp->result = (DID_BAD_TARGET<<16);
368 break;
369 case IOP_RESULT_BUSY:
370 scp->result = (DID_BUS_BUSY<<16);
371 break;
372 case IOP_RESULT_RESET:
373 scp->result = (DID_RESET<<16);
374 break;
375 case IOP_RESULT_FAIL:
376 scp->result = (DID_ERROR<<16);
377 break;
378 case IOP_RESULT_INVALID_REQUEST:
379 scp->result = (DID_ABORT<<16);
380 break;
381 case IOP_RESULT_MODE_SENSE_CHECK_CONDITION:
382 scp->result = SAM_STAT_CHECK_CONDITION;
383 memset(&scp->sense_buffer,
384 0, sizeof(scp->sense_buffer));
385 memcpy(&scp->sense_buffer,
386 &req->sg_list, le32_to_cpu(req->dataxfer_length));
387 break;
388
389 default:
390 scp->result = ((DRIVER_INVALID|SUGGEST_ABORT)<<24) |
391 (DID_ABORT<<16);
392 break;
393 }
394
395 dprintk("scsi_done(%p)\n", scp);
396 scp->scsi_done(scp);
397 free_req(hba, &hba->reqs[tag]);
398}
399
400void hptiop_iop_request_callback(struct hptiop_hba *hba, u32 tag)
401{
402 struct hpt_iop_request_header __iomem *req;
403 struct hpt_iop_request_ioctl_command __iomem *p;
404 struct hpt_ioctl_k *arg;
405
406 req = (struct hpt_iop_request_header __iomem *)
407 ((unsigned long)hba->iop + tag);
408 dprintk("hptiop_iop_request_callback: req=%p, type=%d, "
409 "result=%d, context=0x%x tag=%d\n",
410 req, readl(&req->type), readl(&req->result),
411 readl(&req->context), tag);
412
413 BUG_ON(!readl(&req->result));
414 BUG_ON(readl(&req->type) != IOP_REQUEST_TYPE_IOCTL_COMMAND);
415
416 p = (struct hpt_iop_request_ioctl_command __iomem *)req;
417 arg = (struct hpt_ioctl_k *)(unsigned long)
418 (readl(&req->context) |
419 ((u64)readl(&req->context_hi32)<<32));
420
421 if (readl(&req->result) == IOP_RESULT_SUCCESS) {
422 arg->result = HPT_IOCTL_RESULT_OK;
423
424 if (arg->outbuf_size)
425 memcpy_fromio(arg->outbuf,
426 &p->buf[(readl(&p->inbuf_size) + 3)& ~3],
427 arg->outbuf_size);
428
429 if (arg->bytes_returned)
430 *arg->bytes_returned = arg->outbuf_size;
431 }
432 else
433 arg->result = HPT_IOCTL_RESULT_FAILED;
434
435 arg->done(arg);
436 writel(tag, &hba->iop->outbound_queue);
437}
438
439static irqreturn_t hptiop_intr(int irq, void *dev_id, struct pt_regs *regs)
440{
441 struct hptiop_hba *hba = dev_id;
442 int handled;
443 unsigned long flags;
444
445 spin_lock_irqsave(hba->host->host_lock, flags);
446 handled = __iop_intr(hba);
447 spin_unlock_irqrestore(hba->host->host_lock, flags);
448
449 return handled;
450}
451
452static int hptiop_buildsgl(struct scsi_cmnd *scp, struct hpt_iopsg *psg)
453{
454 struct Scsi_Host *host = scp->device->host;
455 struct hptiop_hba *hba = (struct hptiop_hba *)host->hostdata;
456 struct scatterlist *sglist = (struct scatterlist *)scp->request_buffer;
457
458 /*
459 * though we'll not get non-use_sg fields anymore,
460 * keep use_sg checking anyway
461 */
462 if (scp->use_sg) {
463 int idx;
464
465 HPT_SCP(scp)->sgcnt = pci_map_sg(hba->pcidev,
466 sglist, scp->use_sg,
467 scp->sc_data_direction);
468 HPT_SCP(scp)->mapped = 1;
469 BUG_ON(HPT_SCP(scp)->sgcnt > hba->max_sg_descriptors);
470
471 for (idx = 0; idx < HPT_SCP(scp)->sgcnt; idx++) {
472 psg[idx].pci_address =
473 cpu_to_le64(sg_dma_address(&sglist[idx]));
474 psg[idx].size = cpu_to_le32(sg_dma_len(&sglist[idx]));
475 psg[idx].eot = (idx == HPT_SCP(scp)->sgcnt - 1) ?
476 cpu_to_le32(1) : 0;
477 }
478
479 return HPT_SCP(scp)->sgcnt;
480 } else {
481 HPT_SCP(scp)->dma_handle = pci_map_single(
482 hba->pcidev,
483 scp->request_buffer,
484 scp->request_bufflen,
485 scp->sc_data_direction
486 );
487 HPT_SCP(scp)->mapped = 1;
488 psg->pci_address = cpu_to_le64(HPT_SCP(scp)->dma_handle);
489 psg->size = cpu_to_le32(scp->request_bufflen);
490 psg->eot = cpu_to_le32(1);
491 return 1;
492 }
493}
494
495static int hptiop_queuecommand(struct scsi_cmnd *scp,
496 void (*done)(struct scsi_cmnd *))
497{
498 struct Scsi_Host *host = scp->device->host;
499 struct hptiop_hba *hba = (struct hptiop_hba *)host->hostdata;
500 struct hpt_iop_request_scsi_command *req;
501 int sg_count = 0;
502 struct hptiop_request *_req;
503
504 BUG_ON(!done);
505 scp->scsi_done = done;
506
507 /*
508 * hptiop_shutdown will flash controller cache.
509 */
510 if (scp->cmnd[0] == SYNCHRONIZE_CACHE) {
511 scp->result = DID_OK<<16;
512 goto cmd_done;
513 }
514
515 _req = get_req(hba);
516 if (_req == NULL) {
517 dprintk("hptiop_queuecmd : no free req\n");
518 scp->result = DID_BUS_BUSY << 16;
519 goto cmd_done;
520 }
521
522 _req->scp = scp;
523
524 dprintk("hptiop_queuecmd(scp=%p) %d/%d/%d/%d cdb=(%x-%x-%x) "
525 "req_index=%d, req=%p\n",
526 scp,
527 host->host_no, scp->device->channel,
528 scp->device->id, scp->device->lun,
529 *((u32 *)&scp->cmnd),
530 *((u32 *)&scp->cmnd + 1),
531 *((u32 *)&scp->cmnd + 2),
532 _req->index, _req->req_virt);
533
534 scp->result = 0;
535
536 if (scp->device->channel || scp->device->lun ||
537 scp->device->id > hba->max_devices) {
538 scp->result = DID_BAD_TARGET << 16;
539 free_req(hba, _req);
540 goto cmd_done;
541 }
542
543 req = (struct hpt_iop_request_scsi_command *)_req->req_virt;
544
545 /* build S/G table */
546 if (scp->request_bufflen)
547 sg_count = hptiop_buildsgl(scp, req->sg_list);
548 else
549 HPT_SCP(scp)->mapped = 0;
550
551 req->header.flags = cpu_to_le32(IOP_REQUEST_FLAG_OUTPUT_CONTEXT);
552 req->header.type = cpu_to_le32(IOP_REQUEST_TYPE_SCSI_COMMAND);
553 req->header.result = cpu_to_le32(IOP_RESULT_PENDING);
554 req->header.context = cpu_to_le32(IOPMU_QUEUE_ADDR_HOST_BIT |
555 (u32)_req->index);
556 req->header.context_hi32 = 0;
557 req->dataxfer_length = cpu_to_le32(scp->bufflen);
558 req->channel = scp->device->channel;
559 req->target = scp->device->id;
560 req->lun = scp->device->lun;
561 req->header.size = cpu_to_le32(
562 sizeof(struct hpt_iop_request_scsi_command)
563 - sizeof(struct hpt_iopsg)
564 + sg_count * sizeof(struct hpt_iopsg));
565
566 memcpy(req->cdb, scp->cmnd, sizeof(req->cdb));
567
568 writel(IOPMU_QUEUE_ADDR_HOST_BIT | _req->req_shifted_phy,
569 &hba->iop->inbound_queue);
570
571 return 0;
572
573cmd_done:
574 dprintk("scsi_done(scp=%p)\n", scp);
575 scp->scsi_done(scp);
576 return 0;
577}
578
579static const char *hptiop_info(struct Scsi_Host *host)
580{
581 return driver_name_long;
582}
583
584static int hptiop_reset_hba(struct hptiop_hba *hba)
585{
586 if (atomic_xchg(&hba->resetting, 1) == 0) {
587 atomic_inc(&hba->reset_count);
588 writel(IOPMU_INBOUND_MSG0_RESET,
589 &hba->iop->outbound_msgaddr0);
590 hptiop_pci_posting_flush(hba->iop);
591 }
592
593 wait_event_timeout(hba->reset_wq,
594 atomic_read(&hba->resetting) == 0, 60 * HZ);
595
596 if (atomic_read(&hba->resetting)) {
597 /* IOP is in unkown state, abort reset */
598 printk(KERN_ERR "scsi%d: reset failed\n", hba->host->host_no);
599 return -1;
600 }
601
602 if (iop_send_sync_msg(hba,
603 IOPMU_INBOUND_MSG0_START_BACKGROUND_TASK, 5000)) {
604 dprintk("scsi%d: fail to start background task\n",
605 hba->host->host_no);
606 }
607
608 return 0;
609}
610
611static int hptiop_reset(struct scsi_cmnd *scp)
612{
613 struct Scsi_Host * host = scp->device->host;
614 struct hptiop_hba * hba = (struct hptiop_hba *)host->hostdata;
615
616 printk(KERN_WARNING "hptiop_reset(%d/%d/%d) scp=%p\n",
617 scp->device->host->host_no, scp->device->channel,
618 scp->device->id, scp);
619
620 return hptiop_reset_hba(hba)? FAILED : SUCCESS;
621}
622
623static int hptiop_adjust_disk_queue_depth(struct scsi_device *sdev,
624 int queue_depth)
625{
626 if(queue_depth > 256)
627 queue_depth = 256;
628 scsi_adjust_queue_depth(sdev, MSG_ORDERED_TAG, queue_depth);
629 return queue_depth;
630}
631
632struct hptiop_getinfo {
633 char __user *buffer;
634 loff_t buflength;
635 loff_t bufoffset;
636 loff_t buffillen;
637 loff_t filpos;
638};
639
640static void hptiop_copy_mem_info(struct hptiop_getinfo *pinfo,
641 char *data, int datalen)
642{
643 if (pinfo->filpos < pinfo->bufoffset) {
644 if (pinfo->filpos + datalen <= pinfo->bufoffset) {
645 pinfo->filpos += datalen;
646 return;
647 } else {
648 data += (pinfo->bufoffset - pinfo->filpos);
649 datalen -= (pinfo->bufoffset - pinfo->filpos);
650 pinfo->filpos = pinfo->bufoffset;
651 }
652 }
653
654 pinfo->filpos += datalen;
655 if (pinfo->buffillen == pinfo->buflength)
656 return;
657
658 if (pinfo->buflength - pinfo->buffillen < datalen)
659 datalen = pinfo->buflength - pinfo->buffillen;
660
661 if (copy_to_user(pinfo->buffer + pinfo->buffillen, data, datalen))
662 return;
663
664 pinfo->buffillen += datalen;
665}
666
667static int hptiop_copy_info(struct hptiop_getinfo *pinfo, char *fmt, ...)
668{
669 va_list args;
670 char buf[128];
671 int len;
672
673 va_start(args, fmt);
674 len = vsnprintf(buf, sizeof(buf), fmt, args);
675 va_end(args);
676 hptiop_copy_mem_info(pinfo, buf, len);
677 return len;
678}
679
680static void hptiop_ioctl_done(struct hpt_ioctl_k *arg)
681{
682 arg->done = NULL;
683 wake_up(&arg->hba->ioctl_wq);
684}
685
686static void hptiop_do_ioctl(struct hpt_ioctl_k *arg)
687{
688 struct hptiop_hba *hba = arg->hba;
689 u32 val;
690 struct hpt_iop_request_ioctl_command __iomem *req;
691 int ioctl_retry = 0;
692
693 dprintk("scsi%d: hptiop_do_ioctl\n", hba->host->host_no);
694
695 /*
696 * check (in + out) buff size from application.
697 * outbuf must be dword aligned.
698 */
699 if (((arg->inbuf_size + 3) & ~3) + arg->outbuf_size >
700 hba->max_request_size
701 - sizeof(struct hpt_iop_request_header)
702 - 4 * sizeof(u32)) {
703 dprintk("scsi%d: ioctl buf size (%d/%d) is too large\n",
704 hba->host->host_no,
705 arg->inbuf_size, arg->outbuf_size);
706 arg->result = HPT_IOCTL_RESULT_FAILED;
707 return;
708 }
709
710retry:
711 spin_lock_irq(hba->host->host_lock);
712
713 val = readl(&hba->iop->inbound_queue);
714 if (val == IOPMU_QUEUE_EMPTY) {
715 spin_unlock_irq(hba->host->host_lock);
716 dprintk("scsi%d: no free req for ioctl\n", hba->host->host_no);
717 arg->result = -1;
718 return;
719 }
720
721 req = (struct hpt_iop_request_ioctl_command __iomem *)
722 ((unsigned long)hba->iop + val);
723
724 writel(HPT_CTL_CODE_LINUX_TO_IOP(arg->ioctl_code),
725 &req->ioctl_code);
726 writel(arg->inbuf_size, &req->inbuf_size);
727 writel(arg->outbuf_size, &req->outbuf_size);
728
729 /*
730 * use the buffer on the IOP local memory first, then copy it
731 * back to host.
732 * the caller's request buffer shoudl be little-endian.
733 */
734 if (arg->inbuf_size)
735 memcpy_toio(req->buf, arg->inbuf, arg->inbuf_size);
736
737 /* correct the controller ID for IOP */
738 if ((arg->ioctl_code == HPT_IOCTL_GET_CHANNEL_INFO ||
739 arg->ioctl_code == HPT_IOCTL_GET_CONTROLLER_INFO_V2 ||
740 arg->ioctl_code == HPT_IOCTL_GET_CONTROLLER_INFO)
741 && arg->inbuf_size >= sizeof(u32))
742 writel(0, req->buf);
743
744 writel(IOP_REQUEST_TYPE_IOCTL_COMMAND, &req->header.type);
745 writel(0, &req->header.flags);
746 writel(offsetof(struct hpt_iop_request_ioctl_command, buf)
747 + arg->inbuf_size, &req->header.size);
748 writel((u32)(unsigned long)arg, &req->header.context);
749 writel(BITS_PER_LONG > 32 ? (u32)((unsigned long)arg>>32) : 0,
750 &req->header.context_hi32);
751 writel(IOP_RESULT_PENDING, &req->header.result);
752
753 arg->result = HPT_IOCTL_RESULT_FAILED;
754 arg->done = hptiop_ioctl_done;
755
756 writel(val, &hba->iop->inbound_queue);
757 hptiop_pci_posting_flush(hba->iop);
758
759 spin_unlock_irq(hba->host->host_lock);
760
761 wait_event_timeout(hba->ioctl_wq, arg->done == NULL, 60 * HZ);
762
763 if (arg->done != NULL) {
764 hptiop_reset_hba(hba);
765 if (ioctl_retry++ < 3)
766 goto retry;
767 }
768
769 dprintk("hpt_iop_ioctl %x result %d\n",
770 arg->ioctl_code, arg->result);
771}
772
773static int __hpt_do_ioctl(struct hptiop_hba *hba, u32 code, void *inbuf,
774 u32 insize, void *outbuf, u32 outsize)
775{
776 struct hpt_ioctl_k arg;
777 arg.hba = hba;
778 arg.ioctl_code = code;
779 arg.inbuf = inbuf;
780 arg.outbuf = outbuf;
781 arg.inbuf_size = insize;
782 arg.outbuf_size = outsize;
783 arg.bytes_returned = NULL;
784 hptiop_do_ioctl(&arg);
785 return arg.result;
786}
787
788static inline int hpt_id_valid(__le32 id)
789{
790 return id != 0 && id != cpu_to_le32(0xffffffff);
791}
792
793static int hptiop_get_controller_info(struct hptiop_hba *hba,
794 struct hpt_controller_info *pinfo)
795{
796 int id = 0;
797
798 return __hpt_do_ioctl(hba, HPT_IOCTL_GET_CONTROLLER_INFO,
799 &id, sizeof(int), pinfo, sizeof(*pinfo));
800}
801
802
803static int hptiop_get_channel_info(struct hptiop_hba *hba, int bus,
804 struct hpt_channel_info *pinfo)
805{
806 u32 ids[2];
807
808 ids[0] = 0;
809 ids[1] = bus;
810 return __hpt_do_ioctl(hba, HPT_IOCTL_GET_CHANNEL_INFO,
811 ids, sizeof(ids), pinfo, sizeof(*pinfo));
812
813}
814
815static int hptiop_get_logical_devices(struct hptiop_hba *hba,
816 __le32 *pids, int maxcount)
817{
818 int i;
819 u32 count = maxcount - 1;
820
821 if (__hpt_do_ioctl(hba, HPT_IOCTL_GET_LOGICAL_DEVICES,
822 &count, sizeof(u32),
823 pids, sizeof(u32) * maxcount))
824 return -1;
825
826 maxcount = le32_to_cpu(pids[0]);
827 for (i = 0; i < maxcount; i++)
828 pids[i] = pids[i+1];
829
830 return maxcount;
831}
832
833static int hptiop_get_device_info_v3(struct hptiop_hba *hba, __le32 id,
834 struct hpt_logical_device_info_v3 *pinfo)
835{
836 return __hpt_do_ioctl(hba, HPT_IOCTL_GET_DEVICE_INFO_V3,
837 &id, sizeof(u32),
838 pinfo, sizeof(*pinfo));
839}
840
841static const char *get_array_status(struct hpt_logical_device_info_v3 *devinfo)
842{
843 static char s[64];
844 u32 flags = le32_to_cpu(devinfo->u.array.flags);
845 u32 trans_prog = le32_to_cpu(devinfo->u.array.transforming_progress);
846 u32 reb_prog = le32_to_cpu(devinfo->u.array.rebuilding_progress);
847
848 if (flags & ARRAY_FLAG_DISABLED)
849 return "Disabled";
850 else if (flags & ARRAY_FLAG_TRANSFORMING)
851 sprintf(s, "Expanding/Migrating %d.%d%%%s%s",
852 trans_prog / 100,
853 trans_prog % 100,
854 (flags & (ARRAY_FLAG_NEEDBUILDING|ARRAY_FLAG_BROKEN))?
855 ", Critical" : "",
856 ((flags & ARRAY_FLAG_NEEDINITIALIZING) &&
857 !(flags & ARRAY_FLAG_REBUILDING) &&
858 !(flags & ARRAY_FLAG_INITIALIZING))?
859 ", Unintialized" : "");
860 else if ((flags & ARRAY_FLAG_BROKEN) &&
861 devinfo->u.array.array_type != AT_RAID6)
862 return "Critical";
863 else if (flags & ARRAY_FLAG_REBUILDING)
864 sprintf(s,
865 (flags & ARRAY_FLAG_NEEDINITIALIZING)?
866 "%sBackground initializing %d.%d%%" :
867 "%sRebuilding %d.%d%%",
868 (flags & ARRAY_FLAG_BROKEN)? "Critical, " : "",
869 reb_prog / 100,
870 reb_prog % 100);
871 else if (flags & ARRAY_FLAG_VERIFYING)
872 sprintf(s, "%sVerifying %d.%d%%",
873 (flags & ARRAY_FLAG_BROKEN)? "Critical, " : "",
874 reb_prog / 100,
875 reb_prog % 100);
876 else if (flags & ARRAY_FLAG_INITIALIZING)
877 sprintf(s, "%sForground initializing %d.%d%%",
878 (flags & ARRAY_FLAG_BROKEN)? "Critical, " : "",
879 reb_prog / 100,
880 reb_prog % 100);
881 else if (flags & ARRAY_FLAG_NEEDTRANSFORM)
882 sprintf(s,"%s%s%s", "Need Expanding/Migrating",
883 (flags & ARRAY_FLAG_BROKEN)? "Critical, " : "",
884 ((flags & ARRAY_FLAG_NEEDINITIALIZING) &&
885 !(flags & ARRAY_FLAG_REBUILDING) &&
886 !(flags & ARRAY_FLAG_INITIALIZING))?
887 ", Unintialized" : "");
888 else if (flags & ARRAY_FLAG_NEEDINITIALIZING &&
889 !(flags & ARRAY_FLAG_REBUILDING) &&
890 !(flags & ARRAY_FLAG_INITIALIZING))
891 sprintf(s,"%sUninitialized",
892 (flags & ARRAY_FLAG_BROKEN)? "Critical, " : "");
893 else if ((flags & ARRAY_FLAG_NEEDBUILDING) ||
894 (flags & ARRAY_FLAG_BROKEN))
895 return "Critical";
896 else
897 return "Normal";
898 return s;
899}
900
901static void hptiop_dump_devinfo(struct hptiop_hba *hba,
902 struct hptiop_getinfo *pinfo, __le32 id, int indent)
903{
904 struct hpt_logical_device_info_v3 devinfo;
905 int i;
906 u64 capacity;
907
908 for (i = 0; i < indent; i++)
909 hptiop_copy_info(pinfo, "\t");
910
911 if (hptiop_get_device_info_v3(hba, id, &devinfo)) {
912 hptiop_copy_info(pinfo, "unknown\n");
913 return;
914 }
915
916 switch (devinfo.type) {
917
918 case LDT_DEVICE: {
919 struct hd_driveid *driveid;
920 u32 flags = le32_to_cpu(devinfo.u.device.flags);
921
922 driveid = (struct hd_driveid *)devinfo.u.device.ident;
923 /* model[] is 40 chars long, but we just want 20 chars here */
924 driveid->model[20] = 0;
925
926 if (indent)
927 if (flags & DEVICE_FLAG_DISABLED)
928 hptiop_copy_info(pinfo,"Missing\n");
929 else
930 hptiop_copy_info(pinfo, "CH%d %s\n",
931 devinfo.u.device.path_id + 1,
932 driveid->model);
933 else {
934 capacity = le64_to_cpu(devinfo.capacity) * 512;
935 do_div(capacity, 1000000);
936 hptiop_copy_info(pinfo,
937 "CH%d %s, %lluMB, %s %s%s%s%s\n",
938 devinfo.u.device.path_id + 1,
939 driveid->model,
940 capacity,
941 (flags & DEVICE_FLAG_DISABLED)?
942 "Disabled" : "Normal",
943 devinfo.u.device.read_ahead_enabled?
944 "[RA]" : "",
945 devinfo.u.device.write_cache_enabled?
946 "[WC]" : "",
947 devinfo.u.device.TCQ_enabled?
948 "[TCQ]" : "",
949 devinfo.u.device.NCQ_enabled?
950 "[NCQ]" : ""
951 );
952 }
953 break;
954 }
955
956 case LDT_ARRAY:
957 if (devinfo.target_id != INVALID_TARGET_ID)
958 hptiop_copy_info(pinfo, "[DISK %d_%d] ",
959 devinfo.vbus_id, devinfo.target_id);
960
961 capacity = le64_to_cpu(devinfo.capacity) * 512;
962 do_div(capacity, 1000000);
963 hptiop_copy_info(pinfo, "%s (%s), %lluMB, %s\n",
964 devinfo.u.array.name,
965 devinfo.u.array.array_type==AT_RAID0? "RAID0" :
966 devinfo.u.array.array_type==AT_RAID1? "RAID1" :
967 devinfo.u.array.array_type==AT_RAID5? "RAID5" :
968 devinfo.u.array.array_type==AT_RAID6? "RAID6" :
969 devinfo.u.array.array_type==AT_JBOD? "JBOD" :
970 "unknown",
971 capacity,
972 get_array_status(&devinfo));
973 for (i = 0; i < devinfo.u.array.ndisk; i++) {
974 if (hpt_id_valid(devinfo.u.array.members[i])) {
975 if (cpu_to_le16(1<<i) &
976 devinfo.u.array.critical_members)
977 hptiop_copy_info(pinfo, "\t*");
978 hptiop_dump_devinfo(hba, pinfo,
979 devinfo.u.array.members[i], indent+1);
980 }
981 else
982 hptiop_copy_info(pinfo, "\tMissing\n");
983 }
984 if (id == devinfo.u.array.transform_source) {
985 hptiop_copy_info(pinfo, "\tExpanding/Migrating to:\n");
986 hptiop_dump_devinfo(hba, pinfo,
987 devinfo.u.array.transform_target, indent+1);
988 }
989 break;
990 }
991}
992
993static ssize_t hptiop_show_version(struct class_device *class_dev, char *buf)
994{
995 return snprintf(buf, PAGE_SIZE, "%s\n", driver_ver);
996}
997
998static ssize_t hptiop_cdev_read(struct file *filp, char __user *buf,
999 size_t count, loff_t *ppos)
1000{
1001 struct hptiop_hba *hba = filp->private_data;
1002 struct hptiop_getinfo info;
1003 int i, j, ndev;
1004 struct hpt_controller_info con_info;
1005 struct hpt_channel_info chan_info;
1006 __le32 ids[32];
1007
1008 info.buffer = buf;
1009 info.buflength = count;
1010 info.bufoffset = ppos ? *ppos : 0;
1011 info.filpos = 0;
1012 info.buffillen = 0;
1013
1014 if (hptiop_get_controller_info(hba, &con_info))
1015 return -EIO;
1016
1017 for (i = 0; i < con_info.num_buses; i++) {
1018 if (hptiop_get_channel_info(hba, i, &chan_info) == 0) {
1019 if (hpt_id_valid(chan_info.devices[0]))
1020 hptiop_dump_devinfo(hba, &info,
1021 chan_info.devices[0], 0);
1022 if (hpt_id_valid(chan_info.devices[1]))
1023 hptiop_dump_devinfo(hba, &info,
1024 chan_info.devices[1], 0);
1025 }
1026 }
1027
1028 ndev = hptiop_get_logical_devices(hba, ids,
1029 sizeof(ids) / sizeof(ids[0]));
1030
1031 /*
1032 * if hptiop_get_logical_devices fails, ndev==-1 and it just
1033 * output nothing here
1034 */
1035 for (j = 0; j < ndev; j++)
1036 hptiop_dump_devinfo(hba, &info, ids[j], 0);
1037
1038 if (ppos)
1039 *ppos += info.buffillen;
1040
1041 return info.buffillen;
1042}
1043
1044static int hptiop_cdev_ioctl(struct inode *inode, struct file *file,
1045 unsigned int cmd, unsigned long arg)
1046{
1047 struct hptiop_hba *hba = file->private_data;
1048 struct hpt_ioctl_u ioctl_u;
1049 struct hpt_ioctl_k ioctl_k;
1050 u32 bytes_returned;
1051 int err = -EINVAL;
1052
1053 if (copy_from_user(&ioctl_u,
1054 (void __user *)arg, sizeof(struct hpt_ioctl_u)))
1055 return -EINVAL;
1056
1057 if (ioctl_u.magic != HPT_IOCTL_MAGIC)
1058 return -EINVAL;
1059
1060 ioctl_k.ioctl_code = ioctl_u.ioctl_code;
1061 ioctl_k.inbuf = NULL;
1062 ioctl_k.inbuf_size = ioctl_u.inbuf_size;
1063 ioctl_k.outbuf = NULL;
1064 ioctl_k.outbuf_size = ioctl_u.outbuf_size;
1065 ioctl_k.hba = hba;
1066 ioctl_k.bytes_returned = &bytes_returned;
1067
1068 /* verify user buffer */
1069 if ((ioctl_k.inbuf_size && !access_ok(VERIFY_READ,
1070 ioctl_u.inbuf, ioctl_k.inbuf_size)) ||
1071 (ioctl_k.outbuf_size && !access_ok(VERIFY_WRITE,
1072 ioctl_u.outbuf, ioctl_k.outbuf_size)) ||
1073 (ioctl_u.bytes_returned && !access_ok(VERIFY_WRITE,
1074 ioctl_u.bytes_returned, sizeof(u32))) ||
1075 ioctl_k.inbuf_size + ioctl_k.outbuf_size > 0x10000) {
1076
1077 dprintk("scsi%d: got bad user address\n", hba->host->host_no);
1078 return -EINVAL;
1079 }
1080
1081 /* map buffer to kernel. */
1082 if (ioctl_k.inbuf_size) {
1083 ioctl_k.inbuf = kmalloc(ioctl_k.inbuf_size, GFP_KERNEL);
1084 if (!ioctl_k.inbuf) {
1085 dprintk("scsi%d: fail to alloc inbuf\n",
1086 hba->host->host_no);
1087 err = -ENOMEM;
1088 goto err_exit;
1089 }
1090
1091 if (copy_from_user(ioctl_k.inbuf,
1092 ioctl_u.inbuf, ioctl_k.inbuf_size)) {
1093 goto err_exit;
1094 }
1095 }
1096
1097 if (ioctl_k.outbuf_size) {
1098 ioctl_k.outbuf = kmalloc(ioctl_k.outbuf_size, GFP_KERNEL);
1099 if (!ioctl_k.outbuf) {
1100 dprintk("scsi%d: fail to alloc outbuf\n",
1101 hba->host->host_no);
1102 err = -ENOMEM;
1103 goto err_exit;
1104 }
1105 }
1106
1107 hptiop_do_ioctl(&ioctl_k);
1108
1109 if (ioctl_k.result == HPT_IOCTL_RESULT_OK) {
1110 if (ioctl_k.outbuf_size &&
1111 copy_to_user(ioctl_u.outbuf,
1112 ioctl_k.outbuf, ioctl_k.outbuf_size))
1113 goto err_exit;
1114
1115 if (ioctl_u.bytes_returned &&
1116 copy_to_user(ioctl_u.bytes_returned,
1117 &bytes_returned, sizeof(u32)))
1118 goto err_exit;
1119
1120 err = 0;
1121 }
1122
1123err_exit:
1124 kfree(ioctl_k.inbuf);
1125 kfree(ioctl_k.outbuf);
1126
1127 return err;
1128}
1129
1130static int hptiop_cdev_open(struct inode *inode, struct file *file)
1131{
1132 struct hptiop_hba *hba;
1133 unsigned i = 0, minor = iminor(inode);
1134 int ret = -ENODEV;
1135
1136 spin_lock(&hptiop_hba_list_lock);
1137 list_for_each_entry(hba, &hptiop_hba_list, link) {
1138 if (i == minor) {
1139 file->private_data = hba;
1140 ret = 0;
1141 goto out;
1142 }
1143 i++;
1144 }
1145
1146out:
1147 spin_unlock(&hptiop_hba_list_lock);
1148 return ret;
1149}
1150
1151static struct file_operations hptiop_cdev_fops = {
1152 .owner = THIS_MODULE,
1153 .read = hptiop_cdev_read,
1154 .ioctl = hptiop_cdev_ioctl,
1155 .open = hptiop_cdev_open,
1156};
1157
1158static ssize_t hptiop_show_fw_version(struct class_device *class_dev, char *buf)
1159{
1160 struct Scsi_Host *host = class_to_shost(class_dev);
1161 struct hptiop_hba *hba = (struct hptiop_hba *)host->hostdata;
1162
1163 return snprintf(buf, PAGE_SIZE, "%d.%d.%d.%d\n",
1164 hba->firmware_version >> 24,
1165 (hba->firmware_version >> 16) & 0xff,
1166 (hba->firmware_version >> 8) & 0xff,
1167 hba->firmware_version & 0xff);
1168}
1169
1170static struct class_device_attribute hptiop_attr_version = {
1171 .attr = {
1172 .name = "driver-version",
1173 .mode = S_IRUGO,
1174 },
1175 .show = hptiop_show_version,
1176};
1177
1178static struct class_device_attribute hptiop_attr_fw_version = {
1179 .attr = {
1180 .name = "firmware-version",
1181 .mode = S_IRUGO,
1182 },
1183 .show = hptiop_show_fw_version,
1184};
1185
1186static struct class_device_attribute *hptiop_attrs[] = {
1187 &hptiop_attr_version,
1188 &hptiop_attr_fw_version,
1189 NULL
1190};
1191
1192static struct scsi_host_template driver_template = {
1193 .module = THIS_MODULE,
1194 .name = driver_name,
1195 .queuecommand = hptiop_queuecommand,
1196 .eh_device_reset_handler = hptiop_reset,
1197 .eh_bus_reset_handler = hptiop_reset,
1198 .info = hptiop_info,
1199 .unchecked_isa_dma = 0,
1200 .emulated = 0,
1201 .use_clustering = ENABLE_CLUSTERING,
1202 .proc_name = driver_name,
1203 .shost_attrs = hptiop_attrs,
1204 .this_id = -1,
1205 .change_queue_depth = hptiop_adjust_disk_queue_depth,
1206};
1207
1208static int __devinit hptiop_probe(struct pci_dev *pcidev,
1209 const struct pci_device_id *id)
1210{
1211 struct Scsi_Host *host = NULL;
1212 struct hptiop_hba *hba;
1213 struct hpt_iop_request_get_config iop_config;
1214 struct hpt_iop_request_set_config set_config;
1215 dma_addr_t start_phy;
1216 void *start_virt;
1217 u32 offset, i, req_size;
1218
1219 dprintk("hptiop_probe(%p)\n", pcidev);
1220
1221 if (pci_enable_device(pcidev)) {
1222 printk(KERN_ERR "hptiop: fail to enable pci device\n");
1223 return -ENODEV;
1224 }
1225
1226 printk(KERN_INFO "adapter at PCI %d:%d:%d, IRQ %d\n",
1227 pcidev->bus->number, pcidev->devfn >> 3, pcidev->devfn & 7,
1228 pcidev->irq);
1229
1230 pci_set_master(pcidev);
1231
1232 /* Enable 64bit DMA if possible */
1233 if (pci_set_dma_mask(pcidev, DMA_64BIT_MASK)) {
1234 if (pci_set_dma_mask(pcidev, DMA_32BIT_MASK)) {
1235 printk(KERN_ERR "hptiop: fail to set dma_mask\n");
1236 goto disable_pci_device;
1237 }
1238 }
1239
1240 if (pci_request_regions(pcidev, driver_name)) {
1241 printk(KERN_ERR "hptiop: pci_request_regions failed\n");
1242 goto disable_pci_device;
1243 }
1244
1245 host = scsi_host_alloc(&driver_template, sizeof(struct hptiop_hba));
1246 if (!host) {
1247 printk(KERN_ERR "hptiop: fail to alloc scsi host\n");
1248 goto free_pci_regions;
1249 }
1250
1251 hba = (struct hptiop_hba *)host->hostdata;
1252
1253 hba->pcidev = pcidev;
1254 hba->host = host;
1255 hba->initialized = 0;
1256
1257 atomic_set(&hba->resetting, 0);
1258 atomic_set(&hba->reset_count, 0);
1259
1260 init_waitqueue_head(&hba->reset_wq);
1261 init_waitqueue_head(&hba->ioctl_wq);
1262
1263 host->max_lun = 1;
1264 host->max_channel = 0;
1265 host->io_port = 0;
1266 host->n_io_port = 0;
1267 host->irq = pcidev->irq;
1268
1269 if (hptiop_map_pci_bar(hba))
1270 goto free_scsi_host;
1271
1272 if (iop_wait_ready(hba->iop, 20000)) {
1273 printk(KERN_ERR "scsi%d: firmware not ready\n",
1274 hba->host->host_no);
1275 goto unmap_pci_bar;
1276 }
1277
1278 if (iop_get_config(hba, &iop_config)) {
1279 printk(KERN_ERR "scsi%d: get config failed\n",
1280 hba->host->host_no);
1281 goto unmap_pci_bar;
1282 }
1283
1284 hba->max_requests = min(le32_to_cpu(iop_config.max_requests),
1285 HPTIOP_MAX_REQUESTS);
1286 hba->max_devices = le32_to_cpu(iop_config.max_devices);
1287 hba->max_request_size = le32_to_cpu(iop_config.request_size);
1288 hba->max_sg_descriptors = le32_to_cpu(iop_config.max_sg_count);
1289 hba->firmware_version = le32_to_cpu(iop_config.firmware_version);
1290 hba->sdram_size = le32_to_cpu(iop_config.sdram_size);
1291
1292 host->max_sectors = le32_to_cpu(iop_config.data_transfer_length) >> 9;
1293 host->max_id = le32_to_cpu(iop_config.max_devices);
1294 host->sg_tablesize = le32_to_cpu(iop_config.max_sg_count);
1295 host->can_queue = le32_to_cpu(iop_config.max_requests);
1296 host->cmd_per_lun = le32_to_cpu(iop_config.max_requests);
1297 host->max_cmd_len = 16;
1298
1299 set_config.vbus_id = cpu_to_le32(host->host_no);
1300 set_config.iop_id = cpu_to_le32(host->host_no);
1301
1302 if (iop_set_config(hba, &set_config)) {
1303 printk(KERN_ERR "scsi%d: set config failed\n",
1304 hba->host->host_no);
1305 goto unmap_pci_bar;
1306 }
1307
1308 if (scsi_add_host(host, &pcidev->dev)) {
1309 printk(KERN_ERR "scsi%d: scsi_add_host failed\n",
1310 hba->host->host_no);
1311 goto unmap_pci_bar;
1312 }
1313
1314 pci_set_drvdata(pcidev, host);
1315
1316 if (request_irq(pcidev->irq, hptiop_intr, SA_SHIRQ,
1317 driver_name, hba)) {
1318 printk(KERN_ERR "scsi%d: request irq %d failed\n",
1319 hba->host->host_no, pcidev->irq);
1320 goto remove_scsi_host;
1321 }
1322
1323 /* Allocate request mem */
1324 req_size = sizeof(struct hpt_iop_request_scsi_command)
1325 + sizeof(struct hpt_iopsg) * (hba->max_sg_descriptors - 1);
1326 if ((req_size& 0x1f) != 0)
1327 req_size = (req_size + 0x1f) & ~0x1f;
1328
1329 dprintk("req_size=%d, max_requests=%d\n", req_size, hba->max_requests);
1330
1331 hba->req_size = req_size;
1332 start_virt = dma_alloc_coherent(&pcidev->dev,
1333 hba->req_size*hba->max_requests + 0x20,
1334 &start_phy, GFP_KERNEL);
1335
1336 if (!start_virt) {
1337 printk(KERN_ERR "scsi%d: fail to alloc request mem\n",
1338 hba->host->host_no);
1339 goto free_request_irq;
1340 }
1341
1342 hba->dma_coherent = start_virt;
1343 hba->dma_coherent_handle = start_phy;
1344
1345 if ((start_phy & 0x1f) != 0)
1346 {
1347 offset = ((start_phy + 0x1f) & ~0x1f) - start_phy;
1348 start_phy += offset;
1349 start_virt += offset;
1350 }
1351
1352 hba->req_list = start_virt;
1353 for (i = 0; i < hba->max_requests; i++) {
1354 hba->reqs[i].next = NULL;
1355 hba->reqs[i].req_virt = start_virt;
1356 hba->reqs[i].req_shifted_phy = start_phy >> 5;
1357 hba->reqs[i].index = i;
1358 free_req(hba, &hba->reqs[i]);
1359 start_virt = (char *)start_virt + hba->req_size;
1360 start_phy = start_phy + hba->req_size;
1361 }
1362
1363 /* Enable Interrupt and start background task */
1364 if (hptiop_initialize_iop(hba))
1365 goto free_request_mem;
1366
1367 spin_lock(&hptiop_hba_list_lock);
1368 list_add_tail(&hba->link, &hptiop_hba_list);
1369 spin_unlock(&hptiop_hba_list_lock);
1370
1371 scsi_scan_host(host);
1372
1373 dprintk("scsi%d: hptiop_probe successfully\n", hba->host->host_no);
1374 return 0;
1375
1376free_request_mem:
1377 dma_free_coherent(&hba->pcidev->dev,
1378 hba->req_size*hba->max_requests + 0x20,
1379 hba->dma_coherent, hba->dma_coherent_handle);
1380
1381free_request_irq:
1382 free_irq(hba->pcidev->irq, hba);
1383
1384remove_scsi_host:
1385 scsi_remove_host(host);
1386
1387unmap_pci_bar:
1388 iounmap(hba->iop);
1389
1390free_pci_regions:
1391 pci_release_regions(pcidev) ;
1392
1393free_scsi_host:
1394 scsi_host_put(host);
1395
1396disable_pci_device:
1397 pci_disable_device(pcidev);
1398
1399 dprintk("scsi%d: hptiop_probe fail\n", host->host_no);
1400 return -ENODEV;
1401}
1402
1403static void hptiop_shutdown(struct pci_dev *pcidev)
1404{
1405 struct Scsi_Host *host = pci_get_drvdata(pcidev);
1406 struct hptiop_hba *hba = (struct hptiop_hba *)host->hostdata;
1407 struct hpt_iopmu __iomem *iop = hba->iop;
1408 u32 int_mask;
1409
1410 dprintk("hptiop_shutdown(%p)\n", hba);
1411
1412 /* stop the iop */
1413 if (iop_send_sync_msg(hba, IOPMU_INBOUND_MSG0_SHUTDOWN, 60000))
1414 printk(KERN_ERR "scsi%d: shutdown the iop timeout\n",
1415 hba->host->host_no);
1416
1417 /* disable all outbound interrupts */
1418 int_mask = readl(&iop->outbound_intmask);
1419 writel(int_mask |
1420 IOPMU_OUTBOUND_INT_MSG0 | IOPMU_OUTBOUND_INT_POSTQUEUE,
1421 &iop->outbound_intmask);
1422 hptiop_pci_posting_flush(iop);
1423}
1424
1425static void hptiop_remove(struct pci_dev *pcidev)
1426{
1427 struct Scsi_Host *host = pci_get_drvdata(pcidev);
1428 struct hptiop_hba *hba = (struct hptiop_hba *)host->hostdata;
1429
1430 dprintk("scsi%d: hptiop_remove\n", hba->host->host_no);
1431
1432 spin_lock(&hptiop_hba_list_lock);
1433 list_del_init(&hba->link);
1434 spin_unlock(&hptiop_hba_list_lock);
1435
1436 hptiop_shutdown(pcidev);
1437
1438 free_irq(hba->pcidev->irq, hba);
1439
1440 dma_free_coherent(&hba->pcidev->dev,
1441 hba->req_size * hba->max_requests + 0x20,
1442 hba->dma_coherent,
1443 hba->dma_coherent_handle);
1444
1445 iounmap(hba->iop);
1446
1447 pci_release_regions(hba->pcidev);
1448 pci_set_drvdata(hba->pcidev, NULL);
1449 pci_disable_device(hba->pcidev);
1450
1451 scsi_remove_host(host);
1452 scsi_host_put(host);
1453}
1454
1455static struct pci_device_id hptiop_id_table[] = {
1456 { PCI_DEVICE(0x1103, 0x3220) },
1457 { PCI_DEVICE(0x1103, 0x3320) },
1458 {},
1459};
1460
1461MODULE_DEVICE_TABLE(pci, hptiop_id_table);
1462
1463static struct pci_driver hptiop_pci_driver = {
1464 .name = driver_name,
1465 .id_table = hptiop_id_table,
1466 .probe = hptiop_probe,
1467 .remove = hptiop_remove,
1468 .shutdown = hptiop_shutdown,
1469};
1470
1471static int __init hptiop_module_init(void)
1472{
1473 int error;
1474
1475 printk(KERN_INFO "%s %s\n", driver_name_long, driver_ver);
1476
1477 error = pci_register_driver(&hptiop_pci_driver);
1478 if (error < 0)
1479 return error;
1480
1481 hptiop_cdev_major = register_chrdev(0, "hptiop", &hptiop_cdev_fops);
1482 if (hptiop_cdev_major < 0) {
1483 printk(KERN_WARNING "unable to register hptiop device.\n");
1484 return hptiop_cdev_major;
1485 }
1486
1487 return 0;
1488}
1489
1490static void __exit hptiop_module_exit(void)
1491{
1492 dprintk("hptiop_module_exit\n");
1493 unregister_chrdev(hptiop_cdev_major, "hptiop");
1494 pci_unregister_driver(&hptiop_pci_driver);
1495}
1496
1497
1498module_init(hptiop_module_init);
1499module_exit(hptiop_module_exit);
1500
1501MODULE_LICENSE("GPL");
generated by cgit v1.2.2 (git 2.25.0) at 2024-12-13 16:29:28 -0500