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authorHighPoint Linux Team <linux@highpoint-tech.com>2006-05-16 02:38:09 -0400
committerJames Bottomley <jejb@mulgrave.il.steeleye.com>2006-06-10 11:36:13 -0400
commitede1e6f8b43246a9796583346839669b1f4b77d4 (patch)
tree9fd35517168bf363bec59205f211db59d36beedf
parentcbd5f69b98bb5d7a0d207230bcf8fa51fca3f3cf (diff)
[SCSI] hptiop: HighPoint RocketRAID 3xxx controller driver
HighPoint RocketRAID 3220/3320 series 8 channel PCI-X SATA RAID Host Adapters. Fixes from original submission: Merge Andrew Morton's patches: - Provide locking for global list - Fix debug printks - uninline function with multiple callsites - coding style fixups - remove unneeded casts of void* - kfree(NULL) is legal - Don't "succeed" if register_chrdev() failed - otherwise we'll later unregister a not-registered chrdev. - Don't return from hptiop_do_ioctl() with the spinlock held. - uninline __hpt_do_ioctl() Update for Arjan van de Ven's comments: - put all asm/ includes after the linux/ ones - replace mdelay with msleep - add pci posting flush - do not set pci command reqister in map_pci_bar - do not try merging sg elements in hptiop_buildsgl() - remove unused outstandingcommands member from hba structure - remove unimplemented hptiop_abort() handler - remove typedef u32 hpt_id_t Other updates: - fix endianess Signed-off-by: HighPoint Linux Team <linux@highpoint-tech.com> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
Diffstat
-rw-r--r--Documentation/scsi/hptiop.txt92
-rw-r--r--MAINTAINERS6
-rw-r--r--drivers/scsi/Kconfig10
-rw-r--r--drivers/scsi/Makefile1
-rw-r--r--drivers/scsi/hptiop.c1501
-rw-r--r--drivers/scsi/hptiop.h465
6 files changed, 2075 insertions, 0 deletions
diff --git a/Documentation/scsi/hptiop.txt b/Documentation/scsi/hptiop.txt
new file mode 100644
index 000000000000..d28a31247d4c
--- /dev/null
+++ b/Documentation/scsi/hptiop.txt
@@ -0,0 +1,92 @@
1HIGHPOINT ROCKETRAID 3xxx RAID DRIVER (hptiop)
2
3Controller Register Map
4-------------------------
5
6The controller IOP is accessed via PCI BAR0.
7
8 BAR0 offset Register
9 0x10 Inbound Message Register 0
10 0x14 Inbound Message Register 1
11 0x18 Outbound Message Register 0
12 0x1C Outbound Message Register 1
13 0x20 Inbound Doorbell Register
14 0x24 Inbound Interrupt Status Register
15 0x28 Inbound Interrupt Mask Register
16 0x30 Outbound Interrupt Status Register
17 0x34 Outbound Interrupt Mask Register
18 0x40 Inbound Queue Port
19 0x44 Outbound Queue Port
20
21
22I/O Request Workflow
23----------------------
24
25All queued requests are handled via inbound/outbound queue port.
26A request packet can be allocated in either IOP or host memory.
27
28To send a request to the controller:
29
30 - Get a free request packet by reading the inbound queue port or
31 allocate a free request in host DMA coherent memory.
32
33 The value returned from the inbound queue port is an offset
34 relative to the IOP BAR0.
35
36 Requests allocated in host memory must be aligned on 32-bytes boundary.
37
38 - Fill the packet.
39
40 - Post the packet to IOP by writing it to inbound queue. For requests
41 allocated in IOP memory, write the offset to inbound queue port. For
42 requests allocated in host memory, write (0x80000000|(bus_addr>>5))
43 to the inbound queue port.
44
45 - The IOP process the request. When the request is completed, it
46 will be put into outbound queue. An outbound interrupt will be
47 generated.
48
49 For requests allocated in IOP memory, the request offset is posted to
50 outbound queue.
51
52 For requests allocated in host memory, (0x80000000|(bus_addr>>5))
53 is posted to the outbound queue. If IOP_REQUEST_FLAG_OUTPUT_CONTEXT
54 flag is set in the request, the low 32-bit context value will be
55 posted instead.
56
57 - The host read the outbound queue and complete the request.
58
59 For requests allocated in IOP memory, the host driver free the request
60 by writing it to the outbound queue.
61
62Non-queued requests (reset/flush etc) can be sent via inbound message
63register 0. An outbound message with the same value indicates the completion
64of an inbound message.
65
66
67User-level Interface
68---------------------
69
70The driver exposes following sysfs attributes:
71
72 NAME R/W Description
73 driver-version R driver version string
74 firmware-version R firmware version string
75
76The driver registers char device "hptiop" to communicate with HighPoint RAID
77management software. Its ioctl routine acts as a general binary interface
78between the IOP firmware and HighPoint RAID management software. New management
79functions can be implemented in application/firmware without modification
80in driver code.
81
82
83-----------------------------------------------------------------------------
84Copyright (C) 2006 HighPoint Technologies, Inc. All Rights Reserved.
85
86 This file is distributed in the hope that it will be useful,
87 but WITHOUT ANY WARRANTY; without even the implied warranty of
88 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
89 GNU General Public License for more details.
90
91 linux@highpoint-tech.com
92 http://www.highpoint-tech.com
diff --git a/MAINTAINERS b/MAINTAINERS
index 6d3c401ccdb6..db647bf8830b 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -1117,6 +1117,12 @@ L: linux-hams@vger.kernel.org
1117W: http://www.nt.tuwien.ac.at/~kkudielk/Linux/ 1117W: http://www.nt.tuwien.ac.at/~kkudielk/Linux/
1118S: Maintained 1118S: Maintained
1119 1119
1120HIGHPOINT ROCKETRAID 3xxx RAID DRIVER
1121P: HighPoint Linux Team
1122M: linux@highpoint-tech.com
1123W: http://www.highpoint-tech.com
1124S: Supported
1125
1120HIPPI 1126HIPPI
1121P: Jes Sorensen 1127P: Jes Sorensen
1122M: jes@trained-monkey.org 1128M: jes@trained-monkey.org
diff --git a/drivers/scsi/Kconfig b/drivers/scsi/Kconfig
index 3e7302692dbe..13ad88a064b7 100644
--- a/drivers/scsi/Kconfig
+++ b/drivers/scsi/Kconfig
@@ -530,6 +530,16 @@ config SCSI_PDC_ADMA
530 530
531 If unsure, say N. 531 If unsure, say N.
532 532
533config SCSI_HPTIOP
534 tristate "HighPoint RocketRAID 3xxx Controller support"
535 depends on SCSI && PCI
536 help
537 This option enables support for HighPoint RocketRAID 3xxx
538 controllers.
539
540 To compile this driver as a module, choose M here; the module
541 will be called hptiop. If unsure, say N.
542
533config SCSI_SATA_QSTOR 543config SCSI_SATA_QSTOR
534 tristate "Pacific Digital SATA QStor support" 544 tristate "Pacific Digital SATA QStor support"
535 depends on SCSI_SATA && PCI 545 depends on SCSI_SATA && PCI
diff --git a/drivers/scsi/Makefile b/drivers/scsi/Makefile
index 3ce80ab4824a..9ae4361e352c 100644
--- a/drivers/scsi/Makefile
+++ b/drivers/scsi/Makefile
@@ -136,6 +136,7 @@ obj-$(CONFIG_SCSI_SATA_NV) += libata.o sata_nv.o
136obj-$(CONFIG_SCSI_SATA_ULI) += libata.o sata_uli.o 136obj-$(CONFIG_SCSI_SATA_ULI) += libata.o sata_uli.o
137obj-$(CONFIG_SCSI_SATA_MV) += libata.o sata_mv.o 137obj-$(CONFIG_SCSI_SATA_MV) += libata.o sata_mv.o
138obj-$(CONFIG_SCSI_PDC_ADMA) += libata.o pdc_adma.o 138obj-$(CONFIG_SCSI_PDC_ADMA) += libata.o pdc_adma.o
139obj-$(CONFIG_SCSI_HPTIOP) += hptiop.o
139 140
140obj-$(CONFIG_ARM) += arm/ 141obj-$(CONFIG_ARM) += arm/
141 142
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");
diff --git a/drivers/scsi/hptiop.h b/drivers/scsi/hptiop.h
new file mode 100644
index 000000000000..f04f7e81d1ae
--- /dev/null
+++ b/drivers/scsi/hptiop.h
@@ -0,0 +1,465 @@
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#ifndef _HPTIOP_H_
19#define _HPTIOP_H_
20
21/*
22 * logical device type.
23 * Identify array (logical device) and physical device.
24 */
25#define LDT_ARRAY 1
26#define LDT_DEVICE 2
27
28/*
29 * Array types
30 */
31#define AT_UNKNOWN 0
32#define AT_RAID0 1
33#define AT_RAID1 2
34#define AT_RAID5 3
35#define AT_RAID6 4
36#define AT_JBOD 7
37
38#define MAX_NAME_LENGTH 36
39#define MAX_ARRAYNAME_LEN 16
40
41#define MAX_ARRAY_MEMBERS_V1 8
42#define MAX_ARRAY_MEMBERS_V2 16
43
44/* keep definition for source code compatiblity */
45#define MAX_ARRAY_MEMBERS MAX_ARRAY_MEMBERS_V1
46
47/*
48 * array flags
49 */
50#define ARRAY_FLAG_DISABLED 0x00000001 /* The array is disabled */
51#define ARRAY_FLAG_NEEDBUILDING 0x00000002 /* need to be rebuilt */
52#define ARRAY_FLAG_REBUILDING 0x00000004 /* in rebuilding process */
53#define ARRAY_FLAG_BROKEN 0x00000008 /* broken but still working */
54#define ARRAY_FLAG_BOOTDISK 0x00000010 /* has a active partition */
55#define ARRAY_FLAG_BOOTMARK 0x00000040 /* array has boot mark set */
56#define ARRAY_FLAG_NEED_AUTOREBUILD 0x00000080 /* auto-rebuild should start */
57#define ARRAY_FLAG_VERIFYING 0x00000100 /* is being verified */
58#define ARRAY_FLAG_INITIALIZING 0x00000200 /* is being initialized */
59#define ARRAY_FLAG_TRANSFORMING 0x00000400 /* tranform in progress */
60#define ARRAY_FLAG_NEEDTRANSFORM 0x00000800 /* array need tranform */
61#define ARRAY_FLAG_NEEDINITIALIZING 0x00001000 /* initialization not done */
62#define ARRAY_FLAG_BROKEN_REDUNDANT 0x00002000 /* broken but redundant */
63
64/*
65 * device flags
66 */
67#define DEVICE_FLAG_DISABLED 0x00000001 /* device is disabled */
68#define DEVICE_FLAG_UNINITIALIZED 0x00010000 /* device is not initialized */
69#define DEVICE_FLAG_LEGACY 0x00020000 /* lagacy drive */
70#define DEVICE_FLAG_IS_SPARE 0x80000000 /* is a spare disk */
71
72/*
73 * ioctl codes
74 */
75#define HPT_CTL_CODE(x) (x+0xFF00)
76#define HPT_CTL_CODE_LINUX_TO_IOP(x) ((x)-0xff00)
77
78#define HPT_IOCTL_GET_CONTROLLER_INFO HPT_CTL_CODE(2)
79#define HPT_IOCTL_GET_CHANNEL_INFO HPT_CTL_CODE(3)
80#define HPT_IOCTL_GET_LOGICAL_DEVICES HPT_CTL_CODE(4)
81#define HPT_IOCTL_GET_DRIVER_CAPABILITIES HPT_CTL_CODE(19)
82#define HPT_IOCTL_GET_DEVICE_INFO_V3 HPT_CTL_CODE(46)
83#define HPT_IOCTL_GET_CONTROLLER_INFO_V2 HPT_CTL_CODE(47)
84
85/*
86 * Controller information.
87 */
88struct hpt_controller_info {
89 u8 chip_type; /* chip type */
90 u8 interrupt_level; /* IRQ level */
91 u8 num_buses; /* bus count */
92 u8 chip_flags;
93
94 u8 product_id[MAX_NAME_LENGTH];/* product name */
95 u8 vendor_id[MAX_NAME_LENGTH]; /* vendor name */
96}
97__attribute__((packed));
98
99/*
100 * Channel information.
101 */
102struct hpt_channel_info {
103 __le32 io_port; /* IDE Base Port Address */
104 __le32 control_port; /* IDE Control Port Address */
105 __le32 devices[2]; /* device connected to this channel */
106}
107__attribute__((packed));
108
109/*
110 * Array information.
111 */
112struct hpt_array_info_v3 {
113 u8 name[MAX_ARRAYNAME_LEN]; /* array name */
114 u8 description[64]; /* array description */
115 u8 create_manager[16]; /* who created it */
116 __le32 create_time; /* when created it */
117
118 u8 array_type; /* array type */
119 u8 block_size_shift; /* stripe size */
120 u8 ndisk; /* Number of ID in Members[] */
121 u8 reserved;
122
123 __le32 flags; /* working flags, see ARRAY_FLAG_XXX */
124 __le32 members[MAX_ARRAY_MEMBERS_V2]; /* member array/disks */
125
126 __le32 rebuilding_progress;
127 __le64 rebuilt_sectors; /* rebuilding point (LBA) for single member */
128
129 __le32 transform_source;
130 __le32 transform_target; /* destination device ID */
131 __le32 transforming_progress;
132 __le32 signature; /* persistent identification*/
133 __le16 critical_members; /* bit mask of critical members */
134 __le16 reserve2;
135 __le32 reserve;
136}
137__attribute__((packed));
138
139/*
140 * physical device information.
141 */
142#define MAX_PARENTS_PER_DISK 8
143
144struct hpt_device_info_v2 {
145 u8 ctlr_id; /* controller id */
146 u8 path_id; /* bus */
147 u8 target_id; /* id */
148 u8 device_mode_setting; /* Current Data Transfer mode: 0-4 PIO0-4 */
149 /* 5-7 MW DMA0-2, 8-13 UDMA0-5 */
150 u8 device_type; /* device type */
151 u8 usable_mode; /* highest usable mode */
152
153#ifdef __BIG_ENDIAN_BITFIELD
154 u8 NCQ_enabled: 1;
155 u8 NCQ_supported: 1;
156 u8 TCQ_enabled: 1;
157 u8 TCQ_supported: 1;
158 u8 write_cache_enabled: 1;
159 u8 write_cache_supported: 1;
160 u8 read_ahead_enabled: 1;
161 u8 read_ahead_supported: 1;
162 u8 reserved6: 6;
163 u8 spin_up_mode: 2;
164#else
165 u8 read_ahead_supported: 1;
166 u8 read_ahead_enabled: 1;
167 u8 write_cache_supported: 1;
168 u8 write_cache_enabled: 1;
169 u8 TCQ_supported: 1;
170 u8 TCQ_enabled: 1;
171 u8 NCQ_supported: 1;
172 u8 NCQ_enabled: 1;
173 u8 spin_up_mode: 2;
174 u8 reserved6: 6;
175#endif
176
177 __le32 flags; /* working flags, see DEVICE_FLAG_XXX */
178 u8 ident[150]; /* (partitial) Identify Data of this device */
179
180 __le64 total_free;
181 __le64 max_free;
182 __le64 bad_sectors;
183 __le32 parent_arrays[MAX_PARENTS_PER_DISK];
184}
185__attribute__((packed));
186
187/*
188 * Logical device information.
189 */
190#define INVALID_TARGET_ID 0xFF
191#define INVALID_BUS_ID 0xFF
192
193struct hpt_logical_device_info_v3 {
194 u8 type; /* LDT_ARRAY or LDT_DEVICE */
195 u8 cache_policy; /* refer to CACHE_POLICY_xxx */
196 u8 vbus_id; /* vbus sequence in vbus_list */
197 u8 target_id; /* OS target id. 0xFF is invalid */
198 /* OS name: DISK $VBusId_$TargetId */
199 __le64 capacity; /* array capacity */
200 __le32 parent_array; /* don't use this field for physical
201 device. use ParentArrays field in
202 hpt_device_info_v2 */
203 /* reserved statistic fields */
204 __le32 stat1;
205 __le32 stat2;
206 __le32 stat3;
207 __le32 stat4;
208
209 union {
210 struct hpt_array_info_v3 array;
211 struct hpt_device_info_v2 device;
212 } __attribute__((packed)) u;
213
214}
215__attribute__((packed));
216
217/*
218 * ioctl structure
219 */
220#define HPT_IOCTL_MAGIC 0xA1B2C3D4
221
222struct hpt_ioctl_u {
223 u32 magic; /* used to check if it's a valid ioctl packet */
224 u32 ioctl_code; /* operation control code */
225 void __user *inbuf; /* input data buffer */
226 u32 inbuf_size; /* size of input data buffer */
227 void __user *outbuf; /* output data buffer */
228 u32 outbuf_size; /* size of output data buffer */
229 void __user *bytes_returned; /* count of bytes returned */
230}
231__attribute__((packed));
232
233
234struct hpt_iopmu
235{
236 __le32 resrved0[4];
237 __le32 inbound_msgaddr0;
238 __le32 inbound_msgaddr1;
239 __le32 outbound_msgaddr0;
240 __le32 outbound_msgaddr1;
241 __le32 inbound_doorbell;
242 __le32 inbound_intstatus;
243 __le32 inbound_intmask;
244 __le32 outbound_doorbell;
245 __le32 outbound_intstatus;
246 __le32 outbound_intmask;
247 __le32 reserved1[2];
248 __le32 inbound_queue;
249 __le32 outbound_queue;
250};
251
252#define IOPMU_QUEUE_EMPTY 0xffffffff
253#define IOPMU_QUEUE_MASK_HOST_BITS 0xf0000000
254#define IOPMU_QUEUE_ADDR_HOST_BIT 0x80000000
255
256#define IOPMU_OUTBOUND_INT_MSG0 1
257#define IOPMU_OUTBOUND_INT_MSG1 2
258#define IOPMU_OUTBOUND_INT_DOORBELL 4
259#define IOPMU_OUTBOUND_INT_POSTQUEUE 8
260#define IOPMU_OUTBOUND_INT_PCI 0x10
261
262#define IOPMU_INBOUND_INT_MSG0 1
263#define IOPMU_INBOUND_INT_MSG1 2
264#define IOPMU_INBOUND_INT_DOORBELL 4
265#define IOPMU_INBOUND_INT_ERROR 8
266#define IOPMU_INBOUND_INT_POSTQUEUE 0x10
267
268enum hpt_iopmu_message {
269 /* host-to-iop messages */
270 IOPMU_INBOUND_MSG0_NOP = 0,
271 IOPMU_INBOUND_MSG0_RESET,
272 IOPMU_INBOUND_MSG0_FLUSH,
273 IOPMU_INBOUND_MSG0_SHUTDOWN,
274 IOPMU_INBOUND_MSG0_STOP_BACKGROUND_TASK,
275 IOPMU_INBOUND_MSG0_START_BACKGROUND_TASK,
276 IOPMU_INBOUND_MSG0_MAX = 0xff,
277 /* iop-to-host messages */
278 IOPMU_OUTBOUND_MSG0_REGISTER_DEVICE_0 = 0x100,
279 IOPMU_OUTBOUND_MSG0_REGISTER_DEVICE_MAX = 0x1ff,
280 IOPMU_OUTBOUND_MSG0_UNREGISTER_DEVICE_0 = 0x200,
281 IOPMU_OUTBOUND_MSG0_UNREGISTER_DEVICE_MAX = 0x2ff,
282 IOPMU_OUTBOUND_MSG0_REVALIDATE_DEVICE_0 = 0x300,
283 IOPMU_OUTBOUND_MSG0_REVALIDATE_DEVICE_MAX = 0x3ff,
284};
285
286struct hpt_iop_request_header
287{
288 __le32 size;
289 __le32 type;
290 __le32 flags;
291 __le32 result;
292 __le32 context; /* host context */
293 __le32 context_hi32;
294};
295
296#define IOP_REQUEST_FLAG_SYNC_REQUEST 1
297#define IOP_REQUEST_FLAG_BIST_REQUEST 2
298#define IOP_REQUEST_FLAG_REMAPPED 4
299#define IOP_REQUEST_FLAG_OUTPUT_CONTEXT 8
300
301enum hpt_iop_request_type {
302 IOP_REQUEST_TYPE_GET_CONFIG = 0,
303 IOP_REQUEST_TYPE_SET_CONFIG,
304 IOP_REQUEST_TYPE_BLOCK_COMMAND,
305 IOP_REQUEST_TYPE_SCSI_COMMAND,
306 IOP_REQUEST_TYPE_IOCTL_COMMAND,
307 IOP_REQUEST_TYPE_MAX
308};
309
310enum hpt_iop_result_type {
311 IOP_RESULT_PENDING = 0,
312 IOP_RESULT_SUCCESS,
313 IOP_RESULT_FAIL,
314 IOP_RESULT_BUSY,
315 IOP_RESULT_RESET,
316 IOP_RESULT_INVALID_REQUEST,
317 IOP_RESULT_BAD_TARGET,
318 IOP_RESULT_MODE_SENSE_CHECK_CONDITION,
319};
320
321struct hpt_iop_request_get_config
322{
323 struct hpt_iop_request_header header;
324 __le32 interface_version;
325 __le32 firmware_version;
326 __le32 max_requests;
327 __le32 request_size;
328 __le32 max_sg_count;
329 __le32 data_transfer_length;
330 __le32 alignment_mask;
331 __le32 max_devices;
332 __le32 sdram_size;
333};
334
335struct hpt_iop_request_set_config
336{
337 struct hpt_iop_request_header header;
338 __le32 iop_id;
339 __le32 vbus_id;
340 __le32 reserve[6];
341};
342
343struct hpt_iopsg
344{
345 __le32 size;
346 __le32 eot; /* non-zero: end of table */
347 __le64 pci_address;
348};
349
350struct hpt_iop_request_block_command
351{
352 struct hpt_iop_request_header header;
353 u8 channel;
354 u8 target;
355 u8 lun;
356 u8 pad1;
357 __le16 command; /* IOP_BLOCK_COMMAND_{READ,WRITE} */
358 __le16 sectors;
359 __le64 lba;
360 struct hpt_iopsg sg_list[1];
361};
362
363#define IOP_BLOCK_COMMAND_READ 1
364#define IOP_BLOCK_COMMAND_WRITE 2
365#define IOP_BLOCK_COMMAND_VERIFY 3
366#define IOP_BLOCK_COMMAND_FLUSH 4
367#define IOP_BLOCK_COMMAND_SHUTDOWN 5
368
369struct hpt_iop_request_scsi_command
370{
371 struct hpt_iop_request_header header;
372 u8 channel;
373 u8 target;
374 u8 lun;
375 u8 pad1;
376 u8 cdb[16];
377 __le32 dataxfer_length;
378 struct hpt_iopsg sg_list[1];
379};
380
381struct hpt_iop_request_ioctl_command
382{
383 struct hpt_iop_request_header header;
384 __le32 ioctl_code;
385 __le32 inbuf_size;
386 __le32 outbuf_size;
387 __le32 bytes_returned;
388 u8 buf[1];
389 /* out data should be put at buf[(inbuf_size+3)&~3] */
390};
391
392#define HPTIOP_MAX_REQUESTS 256u
393
394struct hptiop_request {
395 struct hptiop_request * next;
396 void * req_virt;
397 u32 req_shifted_phy;
398 struct scsi_cmnd * scp;
399 int index;
400};
401
402struct hpt_scsi_pointer {
403 int mapped;
404 int sgcnt;
405 dma_addr_t dma_handle;
406};
407
408#define HPT_SCP(scp) ((struct hpt_scsi_pointer *)&(scp)->SCp)
409
410struct hptiop_hba {
411 struct hpt_iopmu __iomem * iop;
412 struct Scsi_Host * host;
413 struct pci_dev * pcidev;
414
415 struct list_head link;
416
417 /* IOP config info */
418 u32 firmware_version;
419 u32 sdram_size;
420 u32 max_devices;
421 u32 max_requests;
422 u32 max_request_size;
423 u32 max_sg_descriptors;
424
425 u32 req_size; /* host-allocated request buffer size */
426 int initialized;
427 int msg_done;
428
429 struct hptiop_request * req_list;
430 struct hptiop_request reqs[HPTIOP_MAX_REQUESTS];
431
432 /* used to free allocated dma area */
433 void * dma_coherent;
434 dma_addr_t dma_coherent_handle;
435
436 atomic_t reset_count;
437 atomic_t resetting;
438
439 wait_queue_head_t reset_wq;
440 wait_queue_head_t ioctl_wq;
441};
442
443struct hpt_ioctl_k
444{
445 struct hptiop_hba * hba;
446 u32 ioctl_code;
447 u32 inbuf_size;
448 u32 outbuf_size;
449 void * inbuf;
450 void * outbuf;
451 u32 * bytes_returned;
452 void (*done)(struct hpt_ioctl_k *);
453 int result; /* HPT_IOCTL_RESULT_ */
454};
455
456#define HPT_IOCTL_RESULT_OK 0
457#define HPT_IOCTL_RESULT_FAILED (-1)
458
459#if 0
460#define dprintk(fmt, args...) do { printk(fmt, ##args); } while(0)
461#else
462#define dprintk(fmt, args...)
463#endif
464
465#endif
generated by cgit v1.2.2 (git 2.25.0) at 2024-11-12 11:36:51 -0500