MINI2440: Added new T35 (QVGA) and Innolux 5.6" (VGA) TFTs
[linux-2.6/mini2440.git] / drivers / scsi / hptiop.c
bloba0e7e711ff9d0ca8f81d1a0018a5c9e6ede1e5fb
1 /*
2 * HighPoint RR3xxx/4xxx controller driver for Linux
3 * Copyright (C) 2006-2009 HighPoint Technologies, Inc. All Rights Reserved.
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.
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.
14 * Please report bugs/comments/suggestions to linux@highpoint-tech.com
16 * For more information, visit http://www.highpoint-tech.com
18 #include <linux/module.h>
19 #include <linux/types.h>
20 #include <linux/string.h>
21 #include <linux/kernel.h>
22 #include <linux/pci.h>
23 #include <linux/interrupt.h>
24 #include <linux/errno.h>
25 #include <linux/delay.h>
26 #include <linux/timer.h>
27 #include <linux/spinlock.h>
28 #include <asm/uaccess.h>
29 #include <asm/io.h>
30 #include <asm/div64.h>
31 #include <scsi/scsi_cmnd.h>
32 #include <scsi/scsi_device.h>
33 #include <scsi/scsi.h>
34 #include <scsi/scsi_tcq.h>
35 #include <scsi/scsi_host.h>
37 #include "hptiop.h"
39 MODULE_AUTHOR("HighPoint Technologies, Inc.");
40 MODULE_DESCRIPTION("HighPoint RocketRAID 3xxx/4xxx Controller Driver");
42 static char driver_name[] = "hptiop";
43 static const char driver_name_long[] = "RocketRAID 3xxx/4xxx Controller driver";
44 static const char driver_ver[] = "v1.6 (090910)";
46 static int iop_send_sync_msg(struct hptiop_hba *hba, u32 msg, u32 millisec);
47 static void hptiop_finish_scsi_req(struct hptiop_hba *hba, u32 tag,
48 struct hpt_iop_request_scsi_command *req);
49 static void hptiop_host_request_callback_itl(struct hptiop_hba *hba, u32 tag);
50 static void hptiop_iop_request_callback_itl(struct hptiop_hba *hba, u32 tag);
51 static void hptiop_message_callback(struct hptiop_hba *hba, u32 msg);
53 static int iop_wait_ready_itl(struct hptiop_hba *hba, u32 millisec)
55 u32 req = 0;
56 int i;
58 for (i = 0; i < millisec; i++) {
59 req = readl(&hba->u.itl.iop->inbound_queue);
60 if (req != IOPMU_QUEUE_EMPTY)
61 break;
62 msleep(1);
65 if (req != IOPMU_QUEUE_EMPTY) {
66 writel(req, &hba->u.itl.iop->outbound_queue);
67 readl(&hba->u.itl.iop->outbound_intstatus);
68 return 0;
71 return -1;
74 static int iop_wait_ready_mv(struct hptiop_hba *hba, u32 millisec)
76 return iop_send_sync_msg(hba, IOPMU_INBOUND_MSG0_NOP, millisec);
79 static void hptiop_request_callback_itl(struct hptiop_hba *hba, u32 tag)
81 if (tag & IOPMU_QUEUE_ADDR_HOST_BIT)
82 hptiop_host_request_callback_itl(hba,
83 tag & ~IOPMU_QUEUE_ADDR_HOST_BIT);
84 else
85 hptiop_iop_request_callback_itl(hba, tag);
88 static void hptiop_drain_outbound_queue_itl(struct hptiop_hba *hba)
90 u32 req;
92 while ((req = readl(&hba->u.itl.iop->outbound_queue)) !=
93 IOPMU_QUEUE_EMPTY) {
95 if (req & IOPMU_QUEUE_MASK_HOST_BITS)
96 hptiop_request_callback_itl(hba, req);
97 else {
98 struct hpt_iop_request_header __iomem * p;
100 p = (struct hpt_iop_request_header __iomem *)
101 ((char __iomem *)hba->u.itl.iop + req);
103 if (readl(&p->flags) & IOP_REQUEST_FLAG_SYNC_REQUEST) {
104 if (readl(&p->context))
105 hptiop_request_callback_itl(hba, req);
106 else
107 writel(1, &p->context);
109 else
110 hptiop_request_callback_itl(hba, req);
115 static int iop_intr_itl(struct hptiop_hba *hba)
117 struct hpt_iopmu_itl __iomem *iop = hba->u.itl.iop;
118 void __iomem *plx = hba->u.itl.plx;
119 u32 status;
120 int ret = 0;
122 if (plx && readl(plx + 0x11C5C) & 0xf)
123 writel(1, plx + 0x11C60);
125 status = readl(&iop->outbound_intstatus);
127 if (status & IOPMU_OUTBOUND_INT_MSG0) {
128 u32 msg = readl(&iop->outbound_msgaddr0);
130 dprintk("received outbound msg %x\n", msg);
131 writel(IOPMU_OUTBOUND_INT_MSG0, &iop->outbound_intstatus);
132 hptiop_message_callback(hba, msg);
133 ret = 1;
136 if (status & IOPMU_OUTBOUND_INT_POSTQUEUE) {
137 hptiop_drain_outbound_queue_itl(hba);
138 ret = 1;
141 return ret;
144 static u64 mv_outbound_read(struct hpt_iopmu_mv __iomem *mu)
146 u32 outbound_tail = readl(&mu->outbound_tail);
147 u32 outbound_head = readl(&mu->outbound_head);
149 if (outbound_tail != outbound_head) {
150 u64 p;
152 memcpy_fromio(&p, &mu->outbound_q[mu->outbound_tail], 8);
153 outbound_tail++;
155 if (outbound_tail == MVIOP_QUEUE_LEN)
156 outbound_tail = 0;
157 writel(outbound_tail, &mu->outbound_tail);
158 return p;
159 } else
160 return 0;
163 static void mv_inbound_write(u64 p, struct hptiop_hba *hba)
165 u32 inbound_head = readl(&hba->u.mv.mu->inbound_head);
166 u32 head = inbound_head + 1;
168 if (head == MVIOP_QUEUE_LEN)
169 head = 0;
171 memcpy_toio(&hba->u.mv.mu->inbound_q[inbound_head], &p, 8);
172 writel(head, &hba->u.mv.mu->inbound_head);
173 writel(MVIOP_MU_INBOUND_INT_POSTQUEUE,
174 &hba->u.mv.regs->inbound_doorbell);
177 static void hptiop_request_callback_mv(struct hptiop_hba *hba, u64 tag)
179 u32 req_type = (tag >> 5) & 0x7;
180 struct hpt_iop_request_scsi_command *req;
182 dprintk("hptiop_request_callback_mv: tag=%llx\n", tag);
184 BUG_ON((tag & MVIOP_MU_QUEUE_REQUEST_RETURN_CONTEXT) == 0);
186 switch (req_type) {
187 case IOP_REQUEST_TYPE_GET_CONFIG:
188 case IOP_REQUEST_TYPE_SET_CONFIG:
189 hba->msg_done = 1;
190 break;
192 case IOP_REQUEST_TYPE_SCSI_COMMAND:
193 req = hba->reqs[tag >> 8].req_virt;
194 if (likely(tag & MVIOP_MU_QUEUE_REQUEST_RESULT_BIT))
195 req->header.result = cpu_to_le32(IOP_RESULT_SUCCESS);
197 hptiop_finish_scsi_req(hba, tag>>8, req);
198 break;
200 default:
201 break;
205 static int iop_intr_mv(struct hptiop_hba *hba)
207 u32 status;
208 int ret = 0;
210 status = readl(&hba->u.mv.regs->outbound_doorbell);
211 writel(~status, &hba->u.mv.regs->outbound_doorbell);
213 if (status & MVIOP_MU_OUTBOUND_INT_MSG) {
214 u32 msg;
215 msg = readl(&hba->u.mv.mu->outbound_msg);
216 dprintk("received outbound msg %x\n", msg);
217 hptiop_message_callback(hba, msg);
218 ret = 1;
221 if (status & MVIOP_MU_OUTBOUND_INT_POSTQUEUE) {
222 u64 tag;
224 while ((tag = mv_outbound_read(hba->u.mv.mu)))
225 hptiop_request_callback_mv(hba, tag);
226 ret = 1;
229 return ret;
232 static int iop_send_sync_request_itl(struct hptiop_hba *hba,
233 void __iomem *_req, u32 millisec)
235 struct hpt_iop_request_header __iomem *req = _req;
236 u32 i;
238 writel(readl(&req->flags) | IOP_REQUEST_FLAG_SYNC_REQUEST, &req->flags);
239 writel(0, &req->context);
240 writel((unsigned long)req - (unsigned long)hba->u.itl.iop,
241 &hba->u.itl.iop->inbound_queue);
242 readl(&hba->u.itl.iop->outbound_intstatus);
244 for (i = 0; i < millisec; i++) {
245 iop_intr_itl(hba);
246 if (readl(&req->context))
247 return 0;
248 msleep(1);
251 return -1;
254 static int iop_send_sync_request_mv(struct hptiop_hba *hba,
255 u32 size_bits, u32 millisec)
257 struct hpt_iop_request_header *reqhdr = hba->u.mv.internal_req;
258 u32 i;
260 hba->msg_done = 0;
261 reqhdr->flags |= cpu_to_le32(IOP_REQUEST_FLAG_SYNC_REQUEST);
262 mv_inbound_write(hba->u.mv.internal_req_phy |
263 MVIOP_MU_QUEUE_ADDR_HOST_BIT | size_bits, hba);
265 for (i = 0; i < millisec; i++) {
266 iop_intr_mv(hba);
267 if (hba->msg_done)
268 return 0;
269 msleep(1);
271 return -1;
274 static void hptiop_post_msg_itl(struct hptiop_hba *hba, u32 msg)
276 writel(msg, &hba->u.itl.iop->inbound_msgaddr0);
277 readl(&hba->u.itl.iop->outbound_intstatus);
280 static void hptiop_post_msg_mv(struct hptiop_hba *hba, u32 msg)
282 writel(msg, &hba->u.mv.mu->inbound_msg);
283 writel(MVIOP_MU_INBOUND_INT_MSG, &hba->u.mv.regs->inbound_doorbell);
284 readl(&hba->u.mv.regs->inbound_doorbell);
287 static int iop_send_sync_msg(struct hptiop_hba *hba, u32 msg, u32 millisec)
289 u32 i;
291 hba->msg_done = 0;
292 hba->ops->post_msg(hba, msg);
294 for (i = 0; i < millisec; i++) {
295 spin_lock_irq(hba->host->host_lock);
296 hba->ops->iop_intr(hba);
297 spin_unlock_irq(hba->host->host_lock);
298 if (hba->msg_done)
299 break;
300 msleep(1);
303 return hba->msg_done? 0 : -1;
306 static int iop_get_config_itl(struct hptiop_hba *hba,
307 struct hpt_iop_request_get_config *config)
309 u32 req32;
310 struct hpt_iop_request_get_config __iomem *req;
312 req32 = readl(&hba->u.itl.iop->inbound_queue);
313 if (req32 == IOPMU_QUEUE_EMPTY)
314 return -1;
316 req = (struct hpt_iop_request_get_config __iomem *)
317 ((unsigned long)hba->u.itl.iop + req32);
319 writel(0, &req->header.flags);
320 writel(IOP_REQUEST_TYPE_GET_CONFIG, &req->header.type);
321 writel(sizeof(struct hpt_iop_request_get_config), &req->header.size);
322 writel(IOP_RESULT_PENDING, &req->header.result);
324 if (iop_send_sync_request_itl(hba, req, 20000)) {
325 dprintk("Get config send cmd failed\n");
326 return -1;
329 memcpy_fromio(config, req, sizeof(*config));
330 writel(req32, &hba->u.itl.iop->outbound_queue);
331 return 0;
334 static int iop_get_config_mv(struct hptiop_hba *hba,
335 struct hpt_iop_request_get_config *config)
337 struct hpt_iop_request_get_config *req = hba->u.mv.internal_req;
339 req->header.flags = cpu_to_le32(IOP_REQUEST_FLAG_OUTPUT_CONTEXT);
340 req->header.type = cpu_to_le32(IOP_REQUEST_TYPE_GET_CONFIG);
341 req->header.size =
342 cpu_to_le32(sizeof(struct hpt_iop_request_get_config));
343 req->header.result = cpu_to_le32(IOP_RESULT_PENDING);
344 req->header.context = cpu_to_le32(IOP_REQUEST_TYPE_GET_CONFIG<<5);
345 req->header.context_hi32 = 0;
347 if (iop_send_sync_request_mv(hba, 0, 20000)) {
348 dprintk("Get config send cmd failed\n");
349 return -1;
352 memcpy(config, req, sizeof(struct hpt_iop_request_get_config));
353 return 0;
356 static int iop_set_config_itl(struct hptiop_hba *hba,
357 struct hpt_iop_request_set_config *config)
359 u32 req32;
360 struct hpt_iop_request_set_config __iomem *req;
362 req32 = readl(&hba->u.itl.iop->inbound_queue);
363 if (req32 == IOPMU_QUEUE_EMPTY)
364 return -1;
366 req = (struct hpt_iop_request_set_config __iomem *)
367 ((unsigned long)hba->u.itl.iop + req32);
369 memcpy_toio((u8 __iomem *)req + sizeof(struct hpt_iop_request_header),
370 (u8 *)config + sizeof(struct hpt_iop_request_header),
371 sizeof(struct hpt_iop_request_set_config) -
372 sizeof(struct hpt_iop_request_header));
374 writel(0, &req->header.flags);
375 writel(IOP_REQUEST_TYPE_SET_CONFIG, &req->header.type);
376 writel(sizeof(struct hpt_iop_request_set_config), &req->header.size);
377 writel(IOP_RESULT_PENDING, &req->header.result);
379 if (iop_send_sync_request_itl(hba, req, 20000)) {
380 dprintk("Set config send cmd failed\n");
381 return -1;
384 writel(req32, &hba->u.itl.iop->outbound_queue);
385 return 0;
388 static int iop_set_config_mv(struct hptiop_hba *hba,
389 struct hpt_iop_request_set_config *config)
391 struct hpt_iop_request_set_config *req = hba->u.mv.internal_req;
393 memcpy(req, config, sizeof(struct hpt_iop_request_set_config));
394 req->header.flags = cpu_to_le32(IOP_REQUEST_FLAG_OUTPUT_CONTEXT);
395 req->header.type = cpu_to_le32(IOP_REQUEST_TYPE_SET_CONFIG);
396 req->header.size =
397 cpu_to_le32(sizeof(struct hpt_iop_request_set_config));
398 req->header.result = cpu_to_le32(IOP_RESULT_PENDING);
399 req->header.context = cpu_to_le32(IOP_REQUEST_TYPE_SET_CONFIG<<5);
400 req->header.context_hi32 = 0;
402 if (iop_send_sync_request_mv(hba, 0, 20000)) {
403 dprintk("Set config send cmd failed\n");
404 return -1;
407 return 0;
410 static void hptiop_enable_intr_itl(struct hptiop_hba *hba)
412 writel(~(IOPMU_OUTBOUND_INT_POSTQUEUE | IOPMU_OUTBOUND_INT_MSG0),
413 &hba->u.itl.iop->outbound_intmask);
416 static void hptiop_enable_intr_mv(struct hptiop_hba *hba)
418 writel(MVIOP_MU_OUTBOUND_INT_POSTQUEUE | MVIOP_MU_OUTBOUND_INT_MSG,
419 &hba->u.mv.regs->outbound_intmask);
422 static int hptiop_initialize_iop(struct hptiop_hba *hba)
424 /* enable interrupts */
425 hba->ops->enable_intr(hba);
427 hba->initialized = 1;
429 /* start background tasks */
430 if (iop_send_sync_msg(hba,
431 IOPMU_INBOUND_MSG0_START_BACKGROUND_TASK, 5000)) {
432 printk(KERN_ERR "scsi%d: fail to start background task\n",
433 hba->host->host_no);
434 return -1;
436 return 0;
439 static void __iomem *hptiop_map_pci_bar(struct hptiop_hba *hba, int index)
441 u32 mem_base_phy, length;
442 void __iomem *mem_base_virt;
444 struct pci_dev *pcidev = hba->pcidev;
447 if (!(pci_resource_flags(pcidev, index) & IORESOURCE_MEM)) {
448 printk(KERN_ERR "scsi%d: pci resource invalid\n",
449 hba->host->host_no);
450 return NULL;
453 mem_base_phy = pci_resource_start(pcidev, index);
454 length = pci_resource_len(pcidev, index);
455 mem_base_virt = ioremap(mem_base_phy, length);
457 if (!mem_base_virt) {
458 printk(KERN_ERR "scsi%d: Fail to ioremap memory space\n",
459 hba->host->host_no);
460 return NULL;
462 return mem_base_virt;
465 static int hptiop_map_pci_bar_itl(struct hptiop_hba *hba)
467 struct pci_dev *pcidev = hba->pcidev;
468 hba->u.itl.iop = hptiop_map_pci_bar(hba, 0);
469 if (hba->u.itl.iop == NULL)
470 return -1;
471 if ((pcidev->device & 0xff00) == 0x4400) {
472 hba->u.itl.plx = hba->u.itl.iop;
473 hba->u.itl.iop = hptiop_map_pci_bar(hba, 2);
474 if (hba->u.itl.iop == NULL) {
475 iounmap(hba->u.itl.plx);
476 return -1;
479 return 0;
482 static void hptiop_unmap_pci_bar_itl(struct hptiop_hba *hba)
484 if (hba->u.itl.plx)
485 iounmap(hba->u.itl.plx);
486 iounmap(hba->u.itl.iop);
489 static int hptiop_map_pci_bar_mv(struct hptiop_hba *hba)
491 hba->u.mv.regs = hptiop_map_pci_bar(hba, 0);
492 if (hba->u.mv.regs == NULL)
493 return -1;
495 hba->u.mv.mu = hptiop_map_pci_bar(hba, 2);
496 if (hba->u.mv.mu == NULL) {
497 iounmap(hba->u.mv.regs);
498 return -1;
501 return 0;
504 static void hptiop_unmap_pci_bar_mv(struct hptiop_hba *hba)
506 iounmap(hba->u.mv.regs);
507 iounmap(hba->u.mv.mu);
510 static void hptiop_message_callback(struct hptiop_hba *hba, u32 msg)
512 dprintk("iop message 0x%x\n", msg);
514 if (msg == IOPMU_INBOUND_MSG0_NOP)
515 hba->msg_done = 1;
517 if (!hba->initialized)
518 return;
520 if (msg == IOPMU_INBOUND_MSG0_RESET) {
521 atomic_set(&hba->resetting, 0);
522 wake_up(&hba->reset_wq);
524 else if (msg <= IOPMU_INBOUND_MSG0_MAX)
525 hba->msg_done = 1;
528 static struct hptiop_request *get_req(struct hptiop_hba *hba)
530 struct hptiop_request *ret;
532 dprintk("get_req : req=%p\n", hba->req_list);
534 ret = hba->req_list;
535 if (ret)
536 hba->req_list = ret->next;
538 return ret;
541 static void free_req(struct hptiop_hba *hba, struct hptiop_request *req)
543 dprintk("free_req(%d, %p)\n", req->index, req);
544 req->next = hba->req_list;
545 hba->req_list = req;
548 static void hptiop_finish_scsi_req(struct hptiop_hba *hba, u32 tag,
549 struct hpt_iop_request_scsi_command *req)
551 struct scsi_cmnd *scp;
553 dprintk("hptiop_finish_scsi_req: req=%p, type=%d, "
554 "result=%d, context=0x%x tag=%d\n",
555 req, req->header.type, req->header.result,
556 req->header.context, tag);
558 BUG_ON(!req->header.result);
559 BUG_ON(req->header.type != cpu_to_le32(IOP_REQUEST_TYPE_SCSI_COMMAND));
561 scp = hba->reqs[tag].scp;
563 if (HPT_SCP(scp)->mapped)
564 scsi_dma_unmap(scp);
566 switch (le32_to_cpu(req->header.result)) {
567 case IOP_RESULT_SUCCESS:
568 scsi_set_resid(scp,
569 scsi_bufflen(scp) - le32_to_cpu(req->dataxfer_length));
570 scp->result = (DID_OK<<16);
571 break;
572 case IOP_RESULT_BAD_TARGET:
573 scp->result = (DID_BAD_TARGET<<16);
574 break;
575 case IOP_RESULT_BUSY:
576 scp->result = (DID_BUS_BUSY<<16);
577 break;
578 case IOP_RESULT_RESET:
579 scp->result = (DID_RESET<<16);
580 break;
581 case IOP_RESULT_FAIL:
582 scp->result = (DID_ERROR<<16);
583 break;
584 case IOP_RESULT_INVALID_REQUEST:
585 scp->result = (DID_ABORT<<16);
586 break;
587 case IOP_RESULT_CHECK_CONDITION:
588 scsi_set_resid(scp,
589 scsi_bufflen(scp) - le32_to_cpu(req->dataxfer_length));
590 scp->result = SAM_STAT_CHECK_CONDITION;
591 memcpy(scp->sense_buffer, &req->sg_list,
592 min_t(size_t, SCSI_SENSE_BUFFERSIZE,
593 le32_to_cpu(req->dataxfer_length)));
594 break;
596 default:
597 scp->result = DRIVER_INVALID << 24 | DID_ABORT << 16;
598 break;
601 dprintk("scsi_done(%p)\n", scp);
602 scp->scsi_done(scp);
603 free_req(hba, &hba->reqs[tag]);
606 static void hptiop_host_request_callback_itl(struct hptiop_hba *hba, u32 _tag)
608 struct hpt_iop_request_scsi_command *req;
609 u32 tag;
611 if (hba->iopintf_v2) {
612 tag = _tag & ~IOPMU_QUEUE_REQUEST_RESULT_BIT;
613 req = hba->reqs[tag].req_virt;
614 if (likely(_tag & IOPMU_QUEUE_REQUEST_RESULT_BIT))
615 req->header.result = cpu_to_le32(IOP_RESULT_SUCCESS);
616 } else {
617 tag = _tag;
618 req = hba->reqs[tag].req_virt;
621 hptiop_finish_scsi_req(hba, tag, req);
624 void hptiop_iop_request_callback_itl(struct hptiop_hba *hba, u32 tag)
626 struct hpt_iop_request_header __iomem *req;
627 struct hpt_iop_request_ioctl_command __iomem *p;
628 struct hpt_ioctl_k *arg;
630 req = (struct hpt_iop_request_header __iomem *)
631 ((unsigned long)hba->u.itl.iop + tag);
632 dprintk("hptiop_iop_request_callback_itl: req=%p, type=%d, "
633 "result=%d, context=0x%x tag=%d\n",
634 req, readl(&req->type), readl(&req->result),
635 readl(&req->context), tag);
637 BUG_ON(!readl(&req->result));
638 BUG_ON(readl(&req->type) != IOP_REQUEST_TYPE_IOCTL_COMMAND);
640 p = (struct hpt_iop_request_ioctl_command __iomem *)req;
641 arg = (struct hpt_ioctl_k *)(unsigned long)
642 (readl(&req->context) |
643 ((u64)readl(&req->context_hi32)<<32));
645 if (readl(&req->result) == IOP_RESULT_SUCCESS) {
646 arg->result = HPT_IOCTL_RESULT_OK;
648 if (arg->outbuf_size)
649 memcpy_fromio(arg->outbuf,
650 &p->buf[(readl(&p->inbuf_size) + 3)& ~3],
651 arg->outbuf_size);
653 if (arg->bytes_returned)
654 *arg->bytes_returned = arg->outbuf_size;
656 else
657 arg->result = HPT_IOCTL_RESULT_FAILED;
659 arg->done(arg);
660 writel(tag, &hba->u.itl.iop->outbound_queue);
663 static irqreturn_t hptiop_intr(int irq, void *dev_id)
665 struct hptiop_hba *hba = dev_id;
666 int handled;
667 unsigned long flags;
669 spin_lock_irqsave(hba->host->host_lock, flags);
670 handled = hba->ops->iop_intr(hba);
671 spin_unlock_irqrestore(hba->host->host_lock, flags);
673 return handled;
676 static int hptiop_buildsgl(struct scsi_cmnd *scp, struct hpt_iopsg *psg)
678 struct Scsi_Host *host = scp->device->host;
679 struct hptiop_hba *hba = (struct hptiop_hba *)host->hostdata;
680 struct scatterlist *sg;
681 int idx, nseg;
683 nseg = scsi_dma_map(scp);
684 BUG_ON(nseg < 0);
685 if (!nseg)
686 return 0;
688 HPT_SCP(scp)->sgcnt = nseg;
689 HPT_SCP(scp)->mapped = 1;
691 BUG_ON(HPT_SCP(scp)->sgcnt > hba->max_sg_descriptors);
693 scsi_for_each_sg(scp, sg, HPT_SCP(scp)->sgcnt, idx) {
694 psg[idx].pci_address = cpu_to_le64(sg_dma_address(sg));
695 psg[idx].size = cpu_to_le32(sg_dma_len(sg));
696 psg[idx].eot = (idx == HPT_SCP(scp)->sgcnt - 1) ?
697 cpu_to_le32(1) : 0;
699 return HPT_SCP(scp)->sgcnt;
702 static void hptiop_post_req_itl(struct hptiop_hba *hba,
703 struct hptiop_request *_req)
705 struct hpt_iop_request_header *reqhdr = _req->req_virt;
707 reqhdr->context = cpu_to_le32(IOPMU_QUEUE_ADDR_HOST_BIT |
708 (u32)_req->index);
709 reqhdr->context_hi32 = 0;
711 if (hba->iopintf_v2) {
712 u32 size, size_bits;
714 size = le32_to_cpu(reqhdr->size);
715 if (size < 256)
716 size_bits = IOPMU_QUEUE_REQUEST_SIZE_BIT;
717 else if (size < 512)
718 size_bits = IOPMU_QUEUE_ADDR_HOST_BIT;
719 else
720 size_bits = IOPMU_QUEUE_REQUEST_SIZE_BIT |
721 IOPMU_QUEUE_ADDR_HOST_BIT;
722 writel(_req->req_shifted_phy | size_bits,
723 &hba->u.itl.iop->inbound_queue);
724 } else
725 writel(_req->req_shifted_phy | IOPMU_QUEUE_ADDR_HOST_BIT,
726 &hba->u.itl.iop->inbound_queue);
729 static void hptiop_post_req_mv(struct hptiop_hba *hba,
730 struct hptiop_request *_req)
732 struct hpt_iop_request_header *reqhdr = _req->req_virt;
733 u32 size, size_bit;
735 reqhdr->context = cpu_to_le32(_req->index<<8 |
736 IOP_REQUEST_TYPE_SCSI_COMMAND<<5);
737 reqhdr->context_hi32 = 0;
738 size = le32_to_cpu(reqhdr->size);
740 if (size <= 256)
741 size_bit = 0;
742 else if (size <= 256*2)
743 size_bit = 1;
744 else if (size <= 256*3)
745 size_bit = 2;
746 else
747 size_bit = 3;
749 mv_inbound_write((_req->req_shifted_phy << 5) |
750 MVIOP_MU_QUEUE_ADDR_HOST_BIT | size_bit, hba);
753 static int hptiop_queuecommand(struct scsi_cmnd *scp,
754 void (*done)(struct scsi_cmnd *))
756 struct Scsi_Host *host = scp->device->host;
757 struct hptiop_hba *hba = (struct hptiop_hba *)host->hostdata;
758 struct hpt_iop_request_scsi_command *req;
759 int sg_count = 0;
760 struct hptiop_request *_req;
762 BUG_ON(!done);
763 scp->scsi_done = done;
765 _req = get_req(hba);
766 if (_req == NULL) {
767 dprintk("hptiop_queuecmd : no free req\n");
768 return SCSI_MLQUEUE_HOST_BUSY;
771 _req->scp = scp;
773 dprintk("hptiop_queuecmd(scp=%p) %d/%d/%d/%d cdb=(%x-%x-%x) "
774 "req_index=%d, req=%p\n",
775 scp,
776 host->host_no, scp->device->channel,
777 scp->device->id, scp->device->lun,
778 ((u32 *)scp->cmnd)[0],
779 ((u32 *)scp->cmnd)[1],
780 ((u32 *)scp->cmnd)[2],
781 _req->index, _req->req_virt);
783 scp->result = 0;
785 if (scp->device->channel || scp->device->lun ||
786 scp->device->id > hba->max_devices) {
787 scp->result = DID_BAD_TARGET << 16;
788 free_req(hba, _req);
789 goto cmd_done;
792 req = _req->req_virt;
794 /* build S/G table */
795 sg_count = hptiop_buildsgl(scp, req->sg_list);
796 if (!sg_count)
797 HPT_SCP(scp)->mapped = 0;
799 req->header.flags = cpu_to_le32(IOP_REQUEST_FLAG_OUTPUT_CONTEXT);
800 req->header.type = cpu_to_le32(IOP_REQUEST_TYPE_SCSI_COMMAND);
801 req->header.result = cpu_to_le32(IOP_RESULT_PENDING);
802 req->dataxfer_length = cpu_to_le32(scsi_bufflen(scp));
803 req->channel = scp->device->channel;
804 req->target = scp->device->id;
805 req->lun = scp->device->lun;
806 req->header.size = cpu_to_le32(
807 sizeof(struct hpt_iop_request_scsi_command)
808 - sizeof(struct hpt_iopsg)
809 + sg_count * sizeof(struct hpt_iopsg));
811 memcpy(req->cdb, scp->cmnd, sizeof(req->cdb));
812 hba->ops->post_req(hba, _req);
813 return 0;
815 cmd_done:
816 dprintk("scsi_done(scp=%p)\n", scp);
817 scp->scsi_done(scp);
818 return 0;
821 static const char *hptiop_info(struct Scsi_Host *host)
823 return driver_name_long;
826 static int hptiop_reset_hba(struct hptiop_hba *hba)
828 if (atomic_xchg(&hba->resetting, 1) == 0) {
829 atomic_inc(&hba->reset_count);
830 hba->ops->post_msg(hba, IOPMU_INBOUND_MSG0_RESET);
833 wait_event_timeout(hba->reset_wq,
834 atomic_read(&hba->resetting) == 0, 60 * HZ);
836 if (atomic_read(&hba->resetting)) {
837 /* IOP is in unkown state, abort reset */
838 printk(KERN_ERR "scsi%d: reset failed\n", hba->host->host_no);
839 return -1;
842 if (iop_send_sync_msg(hba,
843 IOPMU_INBOUND_MSG0_START_BACKGROUND_TASK, 5000)) {
844 dprintk("scsi%d: fail to start background task\n",
845 hba->host->host_no);
848 return 0;
851 static int hptiop_reset(struct scsi_cmnd *scp)
853 struct Scsi_Host * host = scp->device->host;
854 struct hptiop_hba * hba = (struct hptiop_hba *)host->hostdata;
856 printk(KERN_WARNING "hptiop_reset(%d/%d/%d) scp=%p\n",
857 scp->device->host->host_no, scp->device->channel,
858 scp->device->id, scp);
860 return hptiop_reset_hba(hba)? FAILED : SUCCESS;
863 static int hptiop_adjust_disk_queue_depth(struct scsi_device *sdev,
864 int queue_depth)
866 struct hptiop_hba *hba = (struct hptiop_hba *)sdev->host->hostdata;
868 if (queue_depth > hba->max_requests)
869 queue_depth = hba->max_requests;
870 scsi_adjust_queue_depth(sdev, MSG_ORDERED_TAG, queue_depth);
871 return queue_depth;
874 static ssize_t hptiop_show_version(struct device *dev,
875 struct device_attribute *attr, char *buf)
877 return snprintf(buf, PAGE_SIZE, "%s\n", driver_ver);
880 static ssize_t hptiop_show_fw_version(struct device *dev,
881 struct device_attribute *attr, char *buf)
883 struct Scsi_Host *host = class_to_shost(dev);
884 struct hptiop_hba *hba = (struct hptiop_hba *)host->hostdata;
886 return snprintf(buf, PAGE_SIZE, "%d.%d.%d.%d\n",
887 hba->firmware_version >> 24,
888 (hba->firmware_version >> 16) & 0xff,
889 (hba->firmware_version >> 8) & 0xff,
890 hba->firmware_version & 0xff);
893 static struct device_attribute hptiop_attr_version = {
894 .attr = {
895 .name = "driver-version",
896 .mode = S_IRUGO,
898 .show = hptiop_show_version,
901 static struct device_attribute hptiop_attr_fw_version = {
902 .attr = {
903 .name = "firmware-version",
904 .mode = S_IRUGO,
906 .show = hptiop_show_fw_version,
909 static struct device_attribute *hptiop_attrs[] = {
910 &hptiop_attr_version,
911 &hptiop_attr_fw_version,
912 NULL
915 static struct scsi_host_template driver_template = {
916 .module = THIS_MODULE,
917 .name = driver_name,
918 .queuecommand = hptiop_queuecommand,
919 .eh_device_reset_handler = hptiop_reset,
920 .eh_bus_reset_handler = hptiop_reset,
921 .info = hptiop_info,
922 .emulated = 0,
923 .use_clustering = ENABLE_CLUSTERING,
924 .proc_name = driver_name,
925 .shost_attrs = hptiop_attrs,
926 .this_id = -1,
927 .change_queue_depth = hptiop_adjust_disk_queue_depth,
930 static int hptiop_internal_memalloc_mv(struct hptiop_hba *hba)
932 hba->u.mv.internal_req = dma_alloc_coherent(&hba->pcidev->dev,
933 0x800, &hba->u.mv.internal_req_phy, GFP_KERNEL);
934 if (hba->u.mv.internal_req)
935 return 0;
936 else
937 return -1;
940 static int hptiop_internal_memfree_mv(struct hptiop_hba *hba)
942 if (hba->u.mv.internal_req) {
943 dma_free_coherent(&hba->pcidev->dev, 0x800,
944 hba->u.mv.internal_req, hba->u.mv.internal_req_phy);
945 return 0;
946 } else
947 return -1;
950 static int __devinit hptiop_probe(struct pci_dev *pcidev,
951 const struct pci_device_id *id)
953 struct Scsi_Host *host = NULL;
954 struct hptiop_hba *hba;
955 struct hpt_iop_request_get_config iop_config;
956 struct hpt_iop_request_set_config set_config;
957 dma_addr_t start_phy;
958 void *start_virt;
959 u32 offset, i, req_size;
961 dprintk("hptiop_probe(%p)\n", pcidev);
963 if (pci_enable_device(pcidev)) {
964 printk(KERN_ERR "hptiop: fail to enable pci device\n");
965 return -ENODEV;
968 printk(KERN_INFO "adapter at PCI %d:%d:%d, IRQ %d\n",
969 pcidev->bus->number, pcidev->devfn >> 3, pcidev->devfn & 7,
970 pcidev->irq);
972 pci_set_master(pcidev);
974 /* Enable 64bit DMA if possible */
975 if (pci_set_dma_mask(pcidev, DMA_BIT_MASK(64))) {
976 if (pci_set_dma_mask(pcidev, DMA_BIT_MASK(32))) {
977 printk(KERN_ERR "hptiop: fail to set dma_mask\n");
978 goto disable_pci_device;
982 if (pci_request_regions(pcidev, driver_name)) {
983 printk(KERN_ERR "hptiop: pci_request_regions failed\n");
984 goto disable_pci_device;
987 host = scsi_host_alloc(&driver_template, sizeof(struct hptiop_hba));
988 if (!host) {
989 printk(KERN_ERR "hptiop: fail to alloc scsi host\n");
990 goto free_pci_regions;
993 hba = (struct hptiop_hba *)host->hostdata;
995 hba->ops = (struct hptiop_adapter_ops *)id->driver_data;
996 hba->pcidev = pcidev;
997 hba->host = host;
998 hba->initialized = 0;
999 hba->iopintf_v2 = 0;
1001 atomic_set(&hba->resetting, 0);
1002 atomic_set(&hba->reset_count, 0);
1004 init_waitqueue_head(&hba->reset_wq);
1005 init_waitqueue_head(&hba->ioctl_wq);
1007 host->max_lun = 1;
1008 host->max_channel = 0;
1009 host->io_port = 0;
1010 host->n_io_port = 0;
1011 host->irq = pcidev->irq;
1013 if (hba->ops->map_pci_bar(hba))
1014 goto free_scsi_host;
1016 if (hba->ops->iop_wait_ready(hba, 20000)) {
1017 printk(KERN_ERR "scsi%d: firmware not ready\n",
1018 hba->host->host_no);
1019 goto unmap_pci_bar;
1022 if (hba->ops->internal_memalloc) {
1023 if (hba->ops->internal_memalloc(hba)) {
1024 printk(KERN_ERR "scsi%d: internal_memalloc failed\n",
1025 hba->host->host_no);
1026 goto unmap_pci_bar;
1030 if (hba->ops->get_config(hba, &iop_config)) {
1031 printk(KERN_ERR "scsi%d: get config failed\n",
1032 hba->host->host_no);
1033 goto unmap_pci_bar;
1036 hba->max_requests = min(le32_to_cpu(iop_config.max_requests),
1037 HPTIOP_MAX_REQUESTS);
1038 hba->max_devices = le32_to_cpu(iop_config.max_devices);
1039 hba->max_request_size = le32_to_cpu(iop_config.request_size);
1040 hba->max_sg_descriptors = le32_to_cpu(iop_config.max_sg_count);
1041 hba->firmware_version = le32_to_cpu(iop_config.firmware_version);
1042 hba->interface_version = le32_to_cpu(iop_config.interface_version);
1043 hba->sdram_size = le32_to_cpu(iop_config.sdram_size);
1045 if (hba->firmware_version > 0x01020000 ||
1046 hba->interface_version > 0x01020000)
1047 hba->iopintf_v2 = 1;
1049 host->max_sectors = le32_to_cpu(iop_config.data_transfer_length) >> 9;
1050 host->max_id = le32_to_cpu(iop_config.max_devices);
1051 host->sg_tablesize = le32_to_cpu(iop_config.max_sg_count);
1052 host->can_queue = le32_to_cpu(iop_config.max_requests);
1053 host->cmd_per_lun = le32_to_cpu(iop_config.max_requests);
1054 host->max_cmd_len = 16;
1056 req_size = sizeof(struct hpt_iop_request_scsi_command)
1057 + sizeof(struct hpt_iopsg) * (hba->max_sg_descriptors - 1);
1058 if ((req_size & 0x1f) != 0)
1059 req_size = (req_size + 0x1f) & ~0x1f;
1061 memset(&set_config, 0, sizeof(struct hpt_iop_request_set_config));
1062 set_config.iop_id = cpu_to_le32(host->host_no);
1063 set_config.vbus_id = cpu_to_le16(host->host_no);
1064 set_config.max_host_request_size = cpu_to_le16(req_size);
1066 if (hba->ops->set_config(hba, &set_config)) {
1067 printk(KERN_ERR "scsi%d: set config failed\n",
1068 hba->host->host_no);
1069 goto unmap_pci_bar;
1072 pci_set_drvdata(pcidev, host);
1074 if (request_irq(pcidev->irq, hptiop_intr, IRQF_SHARED,
1075 driver_name, hba)) {
1076 printk(KERN_ERR "scsi%d: request irq %d failed\n",
1077 hba->host->host_no, pcidev->irq);
1078 goto unmap_pci_bar;
1081 /* Allocate request mem */
1083 dprintk("req_size=%d, max_requests=%d\n", req_size, hba->max_requests);
1085 hba->req_size = req_size;
1086 start_virt = dma_alloc_coherent(&pcidev->dev,
1087 hba->req_size*hba->max_requests + 0x20,
1088 &start_phy, GFP_KERNEL);
1090 if (!start_virt) {
1091 printk(KERN_ERR "scsi%d: fail to alloc request mem\n",
1092 hba->host->host_no);
1093 goto free_request_irq;
1096 hba->dma_coherent = start_virt;
1097 hba->dma_coherent_handle = start_phy;
1099 if ((start_phy & 0x1f) != 0)
1101 offset = ((start_phy + 0x1f) & ~0x1f) - start_phy;
1102 start_phy += offset;
1103 start_virt += offset;
1106 hba->req_list = start_virt;
1107 for (i = 0; i < hba->max_requests; i++) {
1108 hba->reqs[i].next = NULL;
1109 hba->reqs[i].req_virt = start_virt;
1110 hba->reqs[i].req_shifted_phy = start_phy >> 5;
1111 hba->reqs[i].index = i;
1112 free_req(hba, &hba->reqs[i]);
1113 start_virt = (char *)start_virt + hba->req_size;
1114 start_phy = start_phy + hba->req_size;
1117 /* Enable Interrupt and start background task */
1118 if (hptiop_initialize_iop(hba))
1119 goto free_request_mem;
1121 if (scsi_add_host(host, &pcidev->dev)) {
1122 printk(KERN_ERR "scsi%d: scsi_add_host failed\n",
1123 hba->host->host_no);
1124 goto free_request_mem;
1128 scsi_scan_host(host);
1130 dprintk("scsi%d: hptiop_probe successfully\n", hba->host->host_no);
1131 return 0;
1133 free_request_mem:
1134 dma_free_coherent(&hba->pcidev->dev,
1135 hba->req_size * hba->max_requests + 0x20,
1136 hba->dma_coherent, hba->dma_coherent_handle);
1138 free_request_irq:
1139 free_irq(hba->pcidev->irq, hba);
1141 unmap_pci_bar:
1142 if (hba->ops->internal_memfree)
1143 hba->ops->internal_memfree(hba);
1145 hba->ops->unmap_pci_bar(hba);
1147 free_scsi_host:
1148 scsi_host_put(host);
1150 free_pci_regions:
1151 pci_release_regions(pcidev);
1153 disable_pci_device:
1154 pci_disable_device(pcidev);
1156 dprintk("scsi%d: hptiop_probe fail\n", host->host_no);
1157 return -ENODEV;
1160 static void hptiop_shutdown(struct pci_dev *pcidev)
1162 struct Scsi_Host *host = pci_get_drvdata(pcidev);
1163 struct hptiop_hba *hba = (struct hptiop_hba *)host->hostdata;
1165 dprintk("hptiop_shutdown(%p)\n", hba);
1167 /* stop the iop */
1168 if (iop_send_sync_msg(hba, IOPMU_INBOUND_MSG0_SHUTDOWN, 60000))
1169 printk(KERN_ERR "scsi%d: shutdown the iop timeout\n",
1170 hba->host->host_no);
1172 /* disable all outbound interrupts */
1173 hba->ops->disable_intr(hba);
1176 static void hptiop_disable_intr_itl(struct hptiop_hba *hba)
1178 u32 int_mask;
1180 int_mask = readl(&hba->u.itl.iop->outbound_intmask);
1181 writel(int_mask |
1182 IOPMU_OUTBOUND_INT_MSG0 | IOPMU_OUTBOUND_INT_POSTQUEUE,
1183 &hba->u.itl.iop->outbound_intmask);
1184 readl(&hba->u.itl.iop->outbound_intmask);
1187 static void hptiop_disable_intr_mv(struct hptiop_hba *hba)
1189 writel(0, &hba->u.mv.regs->outbound_intmask);
1190 readl(&hba->u.mv.regs->outbound_intmask);
1193 static void hptiop_remove(struct pci_dev *pcidev)
1195 struct Scsi_Host *host = pci_get_drvdata(pcidev);
1196 struct hptiop_hba *hba = (struct hptiop_hba *)host->hostdata;
1198 dprintk("scsi%d: hptiop_remove\n", hba->host->host_no);
1200 scsi_remove_host(host);
1202 hptiop_shutdown(pcidev);
1204 free_irq(hba->pcidev->irq, hba);
1206 dma_free_coherent(&hba->pcidev->dev,
1207 hba->req_size * hba->max_requests + 0x20,
1208 hba->dma_coherent,
1209 hba->dma_coherent_handle);
1211 if (hba->ops->internal_memfree)
1212 hba->ops->internal_memfree(hba);
1214 hba->ops->unmap_pci_bar(hba);
1216 pci_release_regions(hba->pcidev);
1217 pci_set_drvdata(hba->pcidev, NULL);
1218 pci_disable_device(hba->pcidev);
1220 scsi_host_put(host);
1223 static struct hptiop_adapter_ops hptiop_itl_ops = {
1224 .iop_wait_ready = iop_wait_ready_itl,
1225 .internal_memalloc = NULL,
1226 .internal_memfree = NULL,
1227 .map_pci_bar = hptiop_map_pci_bar_itl,
1228 .unmap_pci_bar = hptiop_unmap_pci_bar_itl,
1229 .enable_intr = hptiop_enable_intr_itl,
1230 .disable_intr = hptiop_disable_intr_itl,
1231 .get_config = iop_get_config_itl,
1232 .set_config = iop_set_config_itl,
1233 .iop_intr = iop_intr_itl,
1234 .post_msg = hptiop_post_msg_itl,
1235 .post_req = hptiop_post_req_itl,
1238 static struct hptiop_adapter_ops hptiop_mv_ops = {
1239 .iop_wait_ready = iop_wait_ready_mv,
1240 .internal_memalloc = hptiop_internal_memalloc_mv,
1241 .internal_memfree = hptiop_internal_memfree_mv,
1242 .map_pci_bar = hptiop_map_pci_bar_mv,
1243 .unmap_pci_bar = hptiop_unmap_pci_bar_mv,
1244 .enable_intr = hptiop_enable_intr_mv,
1245 .disable_intr = hptiop_disable_intr_mv,
1246 .get_config = iop_get_config_mv,
1247 .set_config = iop_set_config_mv,
1248 .iop_intr = iop_intr_mv,
1249 .post_msg = hptiop_post_msg_mv,
1250 .post_req = hptiop_post_req_mv,
1253 static struct pci_device_id hptiop_id_table[] = {
1254 { PCI_VDEVICE(TTI, 0x3220), (kernel_ulong_t)&hptiop_itl_ops },
1255 { PCI_VDEVICE(TTI, 0x3320), (kernel_ulong_t)&hptiop_itl_ops },
1256 { PCI_VDEVICE(TTI, 0x3410), (kernel_ulong_t)&hptiop_itl_ops },
1257 { PCI_VDEVICE(TTI, 0x3510), (kernel_ulong_t)&hptiop_itl_ops },
1258 { PCI_VDEVICE(TTI, 0x3511), (kernel_ulong_t)&hptiop_itl_ops },
1259 { PCI_VDEVICE(TTI, 0x3520), (kernel_ulong_t)&hptiop_itl_ops },
1260 { PCI_VDEVICE(TTI, 0x3521), (kernel_ulong_t)&hptiop_itl_ops },
1261 { PCI_VDEVICE(TTI, 0x3522), (kernel_ulong_t)&hptiop_itl_ops },
1262 { PCI_VDEVICE(TTI, 0x3530), (kernel_ulong_t)&hptiop_itl_ops },
1263 { PCI_VDEVICE(TTI, 0x3540), (kernel_ulong_t)&hptiop_itl_ops },
1264 { PCI_VDEVICE(TTI, 0x3560), (kernel_ulong_t)&hptiop_itl_ops },
1265 { PCI_VDEVICE(TTI, 0x4210), (kernel_ulong_t)&hptiop_itl_ops },
1266 { PCI_VDEVICE(TTI, 0x4211), (kernel_ulong_t)&hptiop_itl_ops },
1267 { PCI_VDEVICE(TTI, 0x4310), (kernel_ulong_t)&hptiop_itl_ops },
1268 { PCI_VDEVICE(TTI, 0x4311), (kernel_ulong_t)&hptiop_itl_ops },
1269 { PCI_VDEVICE(TTI, 0x4320), (kernel_ulong_t)&hptiop_itl_ops },
1270 { PCI_VDEVICE(TTI, 0x4321), (kernel_ulong_t)&hptiop_itl_ops },
1271 { PCI_VDEVICE(TTI, 0x4322), (kernel_ulong_t)&hptiop_itl_ops },
1272 { PCI_VDEVICE(TTI, 0x4400), (kernel_ulong_t)&hptiop_itl_ops },
1273 { PCI_VDEVICE(TTI, 0x3120), (kernel_ulong_t)&hptiop_mv_ops },
1274 { PCI_VDEVICE(TTI, 0x3122), (kernel_ulong_t)&hptiop_mv_ops },
1275 { PCI_VDEVICE(TTI, 0x3020), (kernel_ulong_t)&hptiop_mv_ops },
1279 MODULE_DEVICE_TABLE(pci, hptiop_id_table);
1281 static struct pci_driver hptiop_pci_driver = {
1282 .name = driver_name,
1283 .id_table = hptiop_id_table,
1284 .probe = hptiop_probe,
1285 .remove = hptiop_remove,
1286 .shutdown = hptiop_shutdown,
1289 static int __init hptiop_module_init(void)
1291 printk(KERN_INFO "%s %s\n", driver_name_long, driver_ver);
1292 return pci_register_driver(&hptiop_pci_driver);
1295 static void __exit hptiop_module_exit(void)
1297 pci_unregister_driver(&hptiop_pci_driver);
1301 module_init(hptiop_module_init);
1302 module_exit(hptiop_module_exit);
1304 MODULE_LICENSE("GPL");