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1/*
2*******************************************************************************
3** O.S : Linux
4** FILE NAME : arcmsr_attr.c
5** BY : Nick Cheng
6** Description: attributes exported to sysfs and device host
7*******************************************************************************
8** Copyright (C) 2002 - 2005, Areca Technology Corporation All rights reserved
9**
10** Web site: www.areca.com.tw
11** E-mail: support@areca.com.tw
12**
13** This program is free software; you can redistribute it and/or modify
14** it under the terms of the GNU General Public License version 2 as
15** published by the Free Software Foundation.
16** This program is distributed in the hope that it will be useful,
17** but WITHOUT ANY WARRANTY; without even the implied warranty of
18** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
19** GNU General Public License for more details.
20*******************************************************************************
21** Redistribution and use in source and binary forms, with or without
22** modification, are permitted provided that the following conditions
23** are met:
24** 1. Redistributions of source code must retain the above copyright
25** notice, this list of conditions and the following disclaimer.
26** 2. Redistributions in binary form must reproduce the above copyright
27** notice, this list of conditions and the following disclaimer in the
28** documentation and/or other materials provided with the distribution.
29** 3. The name of the author may not be used to endorse or promote products
30** derived from this software without specific prior written permission.
31**
32** THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
33** IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
34** OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
35** IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
36** INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES(INCLUDING,BUT
37** NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
38** DATA, OR PROFITS; OR BUSINESS INTERRUPTION)HOWEVER CAUSED AND ON ANY
39** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
40** (INCLUDING NEGLIGENCE OR OTHERWISE)ARISING IN ANY WAY OUT OF THE USE OF
41** THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
42*******************************************************************************
43** For history of changes, see Documentation/scsi/ChangeLog.arcmsr
44** Firmware Specification, see Documentation/scsi/arcmsr_spec.txt
45*******************************************************************************
46*/
47#include <linux/module.h>
48#include <linux/kernel.h>
49#include <linux/init.h>
50#include <linux/errno.h>
51#include <linux/delay.h>
52#include <linux/pci.h>
53
54#include <scsi/scsi_cmnd.h>
55#include <scsi/scsi_device.h>
56#include <scsi/scsi_host.h>
57#include <scsi/scsi_transport.h>
58#include "arcmsr.h"
59
60struct device_attribute *arcmsr_host_attrs[];
61
62static ssize_t arcmsr_sysfs_iop_message_read(struct file *filp,
63 struct kobject *kobj,
64 struct bin_attribute *bin,
65 char *buf, loff_t off,
66 size_t count)
67{
68 struct device *dev = container_of(kobj,struct device,kobj);
69 struct Scsi_Host *host = class_to_shost(dev);
70 struct AdapterControlBlock *acb = (struct AdapterControlBlock *) host->hostdata;
71 uint8_t *pQbuffer,*ptmpQbuffer;
72 int32_t allxfer_len = 0;
73
74 if (!capable(CAP_SYS_ADMIN))
75 return -EACCES;
76
77 /* do message unit read. */
78 ptmpQbuffer = (uint8_t *)buf;
79 while ((acb->rqbuf_firstindex != acb->rqbuf_lastindex)
80 && (allxfer_len < 1031)) {
81 pQbuffer = &acb->rqbuffer[acb->rqbuf_firstindex];
82 memcpy(ptmpQbuffer, pQbuffer, 1);
83 acb->rqbuf_firstindex++;
84 acb->rqbuf_firstindex %= ARCMSR_MAX_QBUFFER;
85 ptmpQbuffer++;
86 allxfer_len++;
87 }
88 if (acb->acb_flags & ACB_F_IOPDATA_OVERFLOW) {
89 struct QBUFFER __iomem *prbuffer;
90 uint8_t __iomem *iop_data;
91 int32_t iop_len;
92
93 acb->acb_flags &= ~ACB_F_IOPDATA_OVERFLOW;
94 prbuffer = arcmsr_get_iop_rqbuffer(acb);
95 iop_data = prbuffer->data;
96 iop_len = readl(&prbuffer->data_len);
97 while (iop_len > 0) {
98 acb->rqbuffer[acb->rqbuf_lastindex] = readb(iop_data);
99 acb->rqbuf_lastindex++;
100 acb->rqbuf_lastindex %= ARCMSR_MAX_QBUFFER;
101 iop_data++;
102 iop_len--;
103 }
104 arcmsr_iop_message_read(acb);
105 }
106 return (allxfer_len);
107}
108
109static ssize_t arcmsr_sysfs_iop_message_write(struct file *filp,
110 struct kobject *kobj,
111 struct bin_attribute *bin,
112 char *buf, loff_t off,
113 size_t count)
114{
115 struct device *dev = container_of(kobj,struct device,kobj);
116 struct Scsi_Host *host = class_to_shost(dev);
117 struct AdapterControlBlock *acb = (struct AdapterControlBlock *) host->hostdata;
118 int32_t my_empty_len, user_len, wqbuf_firstindex, wqbuf_lastindex;
119 uint8_t *pQbuffer, *ptmpuserbuffer;
120
121 if (!capable(CAP_SYS_ADMIN))
122 return -EACCES;
123 if (count > 1032)
124 return -EINVAL;
125 /* do message unit write. */
126 ptmpuserbuffer = (uint8_t *)buf;
127 user_len = (int32_t)count;
128 wqbuf_lastindex = acb->wqbuf_lastindex;
129 wqbuf_firstindex = acb->wqbuf_firstindex;
130 if (wqbuf_lastindex != wqbuf_firstindex) {
131 arcmsr_post_ioctldata2iop(acb);
132 return 0; /*need retry*/
133 } else {
134 my_empty_len = (wqbuf_firstindex-wqbuf_lastindex - 1)
135 &(ARCMSR_MAX_QBUFFER - 1);
136 if (my_empty_len >= user_len) {
137 while (user_len > 0) {
138 pQbuffer =
139 &acb->wqbuffer[acb->wqbuf_lastindex];
140 memcpy(pQbuffer, ptmpuserbuffer, 1);
141 acb->wqbuf_lastindex++;
142 acb->wqbuf_lastindex %= ARCMSR_MAX_QBUFFER;
143 ptmpuserbuffer++;
144 user_len--;
145 }
146 if (acb->acb_flags & ACB_F_MESSAGE_WQBUFFER_CLEARED) {
147 acb->acb_flags &=
148 ~ACB_F_MESSAGE_WQBUFFER_CLEARED;
149 arcmsr_post_ioctldata2iop(acb);
150 }
151 return count;
152 } else {
153 return 0; /*need retry*/
154 }
155 }
156}
157
158static ssize_t arcmsr_sysfs_iop_message_clear(struct file *filp,
159 struct kobject *kobj,
160 struct bin_attribute *bin,
161 char *buf, loff_t off,
162 size_t count)
163{
164 struct device *dev = container_of(kobj,struct device,kobj);
165 struct Scsi_Host *host = class_to_shost(dev);
166 struct AdapterControlBlock *acb = (struct AdapterControlBlock *) host->hostdata;
167 uint8_t *pQbuffer;
168
169 if (!capable(CAP_SYS_ADMIN))
170 return -EACCES;
171
172 if (acb->acb_flags & ACB_F_IOPDATA_OVERFLOW) {
173 acb->acb_flags &= ~ACB_F_IOPDATA_OVERFLOW;
174 arcmsr_iop_message_read(acb);
175 }
176 acb->acb_flags |=
177 (ACB_F_MESSAGE_WQBUFFER_CLEARED
178 | ACB_F_MESSAGE_RQBUFFER_CLEARED
179 | ACB_F_MESSAGE_WQBUFFER_READED);
180 acb->rqbuf_firstindex = 0;
181 acb->rqbuf_lastindex = 0;
182 acb->wqbuf_firstindex = 0;
183 acb->wqbuf_lastindex = 0;
184 pQbuffer = acb->rqbuffer;
185 memset(pQbuffer, 0, sizeof (struct QBUFFER));
186 pQbuffer = acb->wqbuffer;
187 memset(pQbuffer, 0, sizeof (struct QBUFFER));
188 return 1;
189}
190
191static struct bin_attribute arcmsr_sysfs_message_read_attr = {
192 .attr = {
193 .name = "mu_read",
194 .mode = S_IRUSR ,
195 },
196 .size = 1032,
197 .read = arcmsr_sysfs_iop_message_read,
198};
199
200static struct bin_attribute arcmsr_sysfs_message_write_attr = {
201 .attr = {
202 .name = "mu_write",
203 .mode = S_IWUSR,
204 },
205 .size = 1032,
206 .write = arcmsr_sysfs_iop_message_write,
207};
208
209static struct bin_attribute arcmsr_sysfs_message_clear_attr = {
210 .attr = {
211 .name = "mu_clear",
212 .mode = S_IWUSR,
213 },
214 .size = 1,
215 .write = arcmsr_sysfs_iop_message_clear,
216};
217
218int arcmsr_alloc_sysfs_attr(struct AdapterControlBlock *acb)
219{
220 struct Scsi_Host *host = acb->host;
221 int error;
222
223 error = sysfs_create_bin_file(&host->shost_dev.kobj, &arcmsr_sysfs_message_read_attr);
224 if (error) {
225 printk(KERN_ERR "arcmsr: alloc sysfs mu_read failed\n");
226 goto error_bin_file_message_read;
227 }
228 error = sysfs_create_bin_file(&host->shost_dev.kobj, &arcmsr_sysfs_message_write_attr);
229 if (error) {
230 printk(KERN_ERR "arcmsr: alloc sysfs mu_write failed\n");
231 goto error_bin_file_message_write;
232 }
233 error = sysfs_create_bin_file(&host->shost_dev.kobj, &arcmsr_sysfs_message_clear_attr);
234 if (error) {
235 printk(KERN_ERR "arcmsr: alloc sysfs mu_clear failed\n");
236 goto error_bin_file_message_clear;
237 }
238 return 0;
239error_bin_file_message_clear:
240 sysfs_remove_bin_file(&host->shost_dev.kobj, &arcmsr_sysfs_message_write_attr);
241error_bin_file_message_write:
242 sysfs_remove_bin_file(&host->shost_dev.kobj, &arcmsr_sysfs_message_read_attr);
243error_bin_file_message_read:
244 return error;
245}
246
247void arcmsr_free_sysfs_attr(struct AdapterControlBlock *acb)
248{
249 struct Scsi_Host *host = acb->host;
250
251 sysfs_remove_bin_file(&host->shost_dev.kobj, &arcmsr_sysfs_message_clear_attr);
252 sysfs_remove_bin_file(&host->shost_dev.kobj, &arcmsr_sysfs_message_write_attr);
253 sysfs_remove_bin_file(&host->shost_dev.kobj, &arcmsr_sysfs_message_read_attr);
254}
255
256
257static ssize_t
258arcmsr_attr_host_driver_version(struct device *dev,
259 struct device_attribute *attr, char *buf)
260{
261 return snprintf(buf, PAGE_SIZE,
262 "%s\n",
263 ARCMSR_DRIVER_VERSION);
264}
265
266static ssize_t
267arcmsr_attr_host_driver_posted_cmd(struct device *dev,
268 struct device_attribute *attr, char *buf)
269{
270 struct Scsi_Host *host = class_to_shost(dev);
271 struct AdapterControlBlock *acb =
272 (struct AdapterControlBlock *) host->hostdata;
273 return snprintf(buf, PAGE_SIZE,
274 "%4d\n",
275 atomic_read(&acb->ccboutstandingcount));
276}
277
278static ssize_t
279arcmsr_attr_host_driver_reset(struct device *dev,
280 struct device_attribute *attr, char *buf)
281{
282 struct Scsi_Host *host = class_to_shost(dev);
283 struct AdapterControlBlock *acb =
284 (struct AdapterControlBlock *) host->hostdata;
285 return snprintf(buf, PAGE_SIZE,
286 "%4d\n",
287 acb->num_resets);
288}
289
290static ssize_t
291arcmsr_attr_host_driver_abort(struct device *dev,
292 struct device_attribute *attr, char *buf)
293{
294 struct Scsi_Host *host = class_to_shost(dev);
295 struct AdapterControlBlock *acb =
296 (struct AdapterControlBlock *) host->hostdata;
297 return snprintf(buf, PAGE_SIZE,
298 "%4d\n",
299 acb->num_aborts);
300}
301
302static ssize_t
303arcmsr_attr_host_fw_model(struct device *dev, struct device_attribute *attr,
304 char *buf)
305{
306 struct Scsi_Host *host = class_to_shost(dev);
307 struct AdapterControlBlock *acb =
308 (struct AdapterControlBlock *) host->hostdata;
309 return snprintf(buf, PAGE_SIZE,
310 "%s\n",
311 acb->firm_model);
312}
313
314static ssize_t
315arcmsr_attr_host_fw_version(struct device *dev,
316 struct device_attribute *attr, char *buf)
317{
318 struct Scsi_Host *host = class_to_shost(dev);
319 struct AdapterControlBlock *acb =
320 (struct AdapterControlBlock *) host->hostdata;
321
322 return snprintf(buf, PAGE_SIZE,
323 "%s\n",
324 acb->firm_version);
325}
326
327static ssize_t
328arcmsr_attr_host_fw_request_len(struct device *dev,
329 struct device_attribute *attr, char *buf)
330{
331 struct Scsi_Host *host = class_to_shost(dev);
332 struct AdapterControlBlock *acb =
333 (struct AdapterControlBlock *) host->hostdata;
334
335 return snprintf(buf, PAGE_SIZE,
336 "%4d\n",
337 acb->firm_request_len);
338}
339
340static ssize_t
341arcmsr_attr_host_fw_numbers_queue(struct device *dev,
342 struct device_attribute *attr, char *buf)
343{
344 struct Scsi_Host *host = class_to_shost(dev);
345 struct AdapterControlBlock *acb =
346 (struct AdapterControlBlock *) host->hostdata;
347
348 return snprintf(buf, PAGE_SIZE,
349 "%4d\n",
350 acb->firm_numbers_queue);
351}
352
353static ssize_t
354arcmsr_attr_host_fw_sdram_size(struct device *dev,
355 struct device_attribute *attr, char *buf)
356{
357 struct Scsi_Host *host = class_to_shost(dev);
358 struct AdapterControlBlock *acb =
359 (struct AdapterControlBlock *) host->hostdata;
360
361 return snprintf(buf, PAGE_SIZE,
362 "%4d\n",
363 acb->firm_sdram_size);
364}
365
366static ssize_t
367arcmsr_attr_host_fw_hd_channels(struct device *dev,
368 struct device_attribute *attr, char *buf)
369{
370 struct Scsi_Host *host = class_to_shost(dev);
371 struct AdapterControlBlock *acb =
372 (struct AdapterControlBlock *) host->hostdata;
373
374 return snprintf(buf, PAGE_SIZE,
375 "%4d\n",
376 acb->firm_hd_channels);
377}
378
379static DEVICE_ATTR(host_driver_version, S_IRUGO, arcmsr_attr_host_driver_version, NULL);
380static DEVICE_ATTR(host_driver_posted_cmd, S_IRUGO, arcmsr_attr_host_driver_posted_cmd, NULL);
381static DEVICE_ATTR(host_driver_reset, S_IRUGO, arcmsr_attr_host_driver_reset, NULL);
382static DEVICE_ATTR(host_driver_abort, S_IRUGO, arcmsr_attr_host_driver_abort, NULL);
383static DEVICE_ATTR(host_fw_model, S_IRUGO, arcmsr_attr_host_fw_model, NULL);
384static DEVICE_ATTR(host_fw_version, S_IRUGO, arcmsr_attr_host_fw_version, NULL);
385static DEVICE_ATTR(host_fw_request_len, S_IRUGO, arcmsr_attr_host_fw_request_len, NULL);
386static DEVICE_ATTR(host_fw_numbers_queue, S_IRUGO, arcmsr_attr_host_fw_numbers_queue, NULL);
387static DEVICE_ATTR(host_fw_sdram_size, S_IRUGO, arcmsr_attr_host_fw_sdram_size, NULL);
388static DEVICE_ATTR(host_fw_hd_channels, S_IRUGO, arcmsr_attr_host_fw_hd_channels, NULL);
389
390struct device_attribute *arcmsr_host_attrs[] = {
391 &dev_attr_host_driver_version,
392 &dev_attr_host_driver_posted_cmd,
393 &dev_attr_host_driver_reset,
394 &dev_attr_host_driver_abort,
395 &dev_attr_host_fw_model,
396 &dev_attr_host_fw_version,
397 &dev_attr_host_fw_request_len,
398 &dev_attr_host_fw_numbers_queue,
399 &dev_attr_host_fw_sdram_size,
400 &dev_attr_host_fw_hd_channels,
401 NULL,
402};
1/*
2*******************************************************************************
3** O.S : Linux
4** FILE NAME : arcmsr_attr.c
5** BY : Nick Cheng
6** Description: attributes exported to sysfs and device host
7*******************************************************************************
8** Copyright (C) 2002 - 2005, Areca Technology Corporation All rights reserved
9**
10** Web site: www.areca.com.tw
11** E-mail: support@areca.com.tw
12**
13** This program is free software; you can redistribute it and/or modify
14** it under the terms of the GNU General Public License version 2 as
15** published by the Free Software Foundation.
16** This program is distributed in the hope that it will be useful,
17** but WITHOUT ANY WARRANTY; without even the implied warranty of
18** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
19** GNU General Public License for more details.
20*******************************************************************************
21** Redistribution and use in source and binary forms, with or without
22** modification, are permitted provided that the following conditions
23** are met:
24** 1. Redistributions of source code must retain the above copyright
25** notice, this list of conditions and the following disclaimer.
26** 2. Redistributions in binary form must reproduce the above copyright
27** notice, this list of conditions and the following disclaimer in the
28** documentation and/or other materials provided with the distribution.
29** 3. The name of the author may not be used to endorse or promote products
30** derived from this software without specific prior written permission.
31**
32** THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
33** IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
34** OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
35** IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
36** INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES(INCLUDING,BUT
37** NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
38** DATA, OR PROFITS; OR BUSINESS INTERRUPTION)HOWEVER CAUSED AND ON ANY
39** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
40** (INCLUDING NEGLIGENCE OR OTHERWISE)ARISING IN ANY WAY OUT OF THE USE OF
41** THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
42*******************************************************************************
43** For history of changes, see Documentation/scsi/ChangeLog.arcmsr
44** Firmware Specification, see Documentation/scsi/arcmsr_spec.txt
45*******************************************************************************
46*/
47#include <linux/module.h>
48#include <linux/kernel.h>
49#include <linux/init.h>
50#include <linux/errno.h>
51#include <linux/delay.h>
52#include <linux/pci.h>
53#include <linux/circ_buf.h>
54
55#include <scsi/scsi_cmnd.h>
56#include <scsi/scsi_device.h>
57#include <scsi/scsi_host.h>
58#include <scsi/scsi_transport.h>
59#include "arcmsr.h"
60
61struct device_attribute *arcmsr_host_attrs[];
62
63static ssize_t arcmsr_sysfs_iop_message_read(struct file *filp,
64 struct kobject *kobj,
65 struct bin_attribute *bin,
66 char *buf, loff_t off,
67 size_t count)
68{
69 struct device *dev = container_of(kobj,struct device,kobj);
70 struct Scsi_Host *host = class_to_shost(dev);
71 struct AdapterControlBlock *acb = (struct AdapterControlBlock *) host->hostdata;
72 uint8_t *ptmpQbuffer;
73 int32_t allxfer_len = 0;
74 unsigned long flags;
75
76 if (!capable(CAP_SYS_ADMIN))
77 return -EACCES;
78
79 /* do message unit read. */
80 ptmpQbuffer = (uint8_t *)buf;
81 spin_lock_irqsave(&acb->rqbuffer_lock, flags);
82 if (acb->rqbuf_getIndex != acb->rqbuf_putIndex) {
83 unsigned int tail = acb->rqbuf_getIndex;
84 unsigned int head = acb->rqbuf_putIndex;
85 unsigned int cnt_to_end = CIRC_CNT_TO_END(head, tail, ARCMSR_MAX_QBUFFER);
86
87 allxfer_len = CIRC_CNT(head, tail, ARCMSR_MAX_QBUFFER);
88 if (allxfer_len > ARCMSR_API_DATA_BUFLEN)
89 allxfer_len = ARCMSR_API_DATA_BUFLEN;
90
91 if (allxfer_len <= cnt_to_end)
92 memcpy(ptmpQbuffer, acb->rqbuffer + tail, allxfer_len);
93 else {
94 memcpy(ptmpQbuffer, acb->rqbuffer + tail, cnt_to_end);
95 memcpy(ptmpQbuffer + cnt_to_end, acb->rqbuffer, allxfer_len - cnt_to_end);
96 }
97 acb->rqbuf_getIndex = (acb->rqbuf_getIndex + allxfer_len) % ARCMSR_MAX_QBUFFER;
98 }
99 if (acb->acb_flags & ACB_F_IOPDATA_OVERFLOW) {
100 struct QBUFFER __iomem *prbuffer;
101 acb->acb_flags &= ~ACB_F_IOPDATA_OVERFLOW;
102 prbuffer = arcmsr_get_iop_rqbuffer(acb);
103 if (arcmsr_Read_iop_rqbuffer_data(acb, prbuffer) == 0)
104 acb->acb_flags |= ACB_F_IOPDATA_OVERFLOW;
105 }
106 spin_unlock_irqrestore(&acb->rqbuffer_lock, flags);
107 return allxfer_len;
108}
109
110static ssize_t arcmsr_sysfs_iop_message_write(struct file *filp,
111 struct kobject *kobj,
112 struct bin_attribute *bin,
113 char *buf, loff_t off,
114 size_t count)
115{
116 struct device *dev = container_of(kobj,struct device,kobj);
117 struct Scsi_Host *host = class_to_shost(dev);
118 struct AdapterControlBlock *acb = (struct AdapterControlBlock *) host->hostdata;
119 int32_t user_len, cnt2end;
120 uint8_t *pQbuffer, *ptmpuserbuffer;
121 unsigned long flags;
122
123 if (!capable(CAP_SYS_ADMIN))
124 return -EACCES;
125 if (count > ARCMSR_API_DATA_BUFLEN)
126 return -EINVAL;
127 /* do message unit write. */
128 ptmpuserbuffer = (uint8_t *)buf;
129 user_len = (int32_t)count;
130 spin_lock_irqsave(&acb->wqbuffer_lock, flags);
131 if (acb->wqbuf_putIndex != acb->wqbuf_getIndex) {
132 arcmsr_write_ioctldata2iop(acb);
133 spin_unlock_irqrestore(&acb->wqbuffer_lock, flags);
134 return 0; /*need retry*/
135 } else {
136 pQbuffer = &acb->wqbuffer[acb->wqbuf_putIndex];
137 cnt2end = ARCMSR_MAX_QBUFFER - acb->wqbuf_putIndex;
138 if (user_len > cnt2end) {
139 memcpy(pQbuffer, ptmpuserbuffer, cnt2end);
140 ptmpuserbuffer += cnt2end;
141 user_len -= cnt2end;
142 acb->wqbuf_putIndex = 0;
143 pQbuffer = acb->wqbuffer;
144 }
145 memcpy(pQbuffer, ptmpuserbuffer, user_len);
146 acb->wqbuf_putIndex += user_len;
147 acb->wqbuf_putIndex %= ARCMSR_MAX_QBUFFER;
148 if (acb->acb_flags & ACB_F_MESSAGE_WQBUFFER_CLEARED) {
149 acb->acb_flags &=
150 ~ACB_F_MESSAGE_WQBUFFER_CLEARED;
151 arcmsr_write_ioctldata2iop(acb);
152 }
153 spin_unlock_irqrestore(&acb->wqbuffer_lock, flags);
154 return count;
155 }
156}
157
158static ssize_t arcmsr_sysfs_iop_message_clear(struct file *filp,
159 struct kobject *kobj,
160 struct bin_attribute *bin,
161 char *buf, loff_t off,
162 size_t count)
163{
164 struct device *dev = container_of(kobj,struct device,kobj);
165 struct Scsi_Host *host = class_to_shost(dev);
166 struct AdapterControlBlock *acb = (struct AdapterControlBlock *) host->hostdata;
167 uint8_t *pQbuffer;
168 unsigned long flags;
169
170 if (!capable(CAP_SYS_ADMIN))
171 return -EACCES;
172
173 arcmsr_clear_iop2drv_rqueue_buffer(acb);
174 acb->acb_flags |=
175 (ACB_F_MESSAGE_WQBUFFER_CLEARED
176 | ACB_F_MESSAGE_RQBUFFER_CLEARED
177 | ACB_F_MESSAGE_WQBUFFER_READED);
178 spin_lock_irqsave(&acb->rqbuffer_lock, flags);
179 acb->rqbuf_getIndex = 0;
180 acb->rqbuf_putIndex = 0;
181 spin_unlock_irqrestore(&acb->rqbuffer_lock, flags);
182 spin_lock_irqsave(&acb->wqbuffer_lock, flags);
183 acb->wqbuf_getIndex = 0;
184 acb->wqbuf_putIndex = 0;
185 spin_unlock_irqrestore(&acb->wqbuffer_lock, flags);
186 pQbuffer = acb->rqbuffer;
187 memset(pQbuffer, 0, sizeof (struct QBUFFER));
188 pQbuffer = acb->wqbuffer;
189 memset(pQbuffer, 0, sizeof (struct QBUFFER));
190 return 1;
191}
192
193static struct bin_attribute arcmsr_sysfs_message_read_attr = {
194 .attr = {
195 .name = "mu_read",
196 .mode = S_IRUSR ,
197 },
198 .size = ARCMSR_API_DATA_BUFLEN,
199 .read = arcmsr_sysfs_iop_message_read,
200};
201
202static struct bin_attribute arcmsr_sysfs_message_write_attr = {
203 .attr = {
204 .name = "mu_write",
205 .mode = S_IWUSR,
206 },
207 .size = ARCMSR_API_DATA_BUFLEN,
208 .write = arcmsr_sysfs_iop_message_write,
209};
210
211static struct bin_attribute arcmsr_sysfs_message_clear_attr = {
212 .attr = {
213 .name = "mu_clear",
214 .mode = S_IWUSR,
215 },
216 .size = 1,
217 .write = arcmsr_sysfs_iop_message_clear,
218};
219
220int arcmsr_alloc_sysfs_attr(struct AdapterControlBlock *acb)
221{
222 struct Scsi_Host *host = acb->host;
223 int error;
224
225 error = sysfs_create_bin_file(&host->shost_dev.kobj, &arcmsr_sysfs_message_read_attr);
226 if (error) {
227 printk(KERN_ERR "arcmsr: alloc sysfs mu_read failed\n");
228 goto error_bin_file_message_read;
229 }
230 error = sysfs_create_bin_file(&host->shost_dev.kobj, &arcmsr_sysfs_message_write_attr);
231 if (error) {
232 printk(KERN_ERR "arcmsr: alloc sysfs mu_write failed\n");
233 goto error_bin_file_message_write;
234 }
235 error = sysfs_create_bin_file(&host->shost_dev.kobj, &arcmsr_sysfs_message_clear_attr);
236 if (error) {
237 printk(KERN_ERR "arcmsr: alloc sysfs mu_clear failed\n");
238 goto error_bin_file_message_clear;
239 }
240 return 0;
241error_bin_file_message_clear:
242 sysfs_remove_bin_file(&host->shost_dev.kobj, &arcmsr_sysfs_message_write_attr);
243error_bin_file_message_write:
244 sysfs_remove_bin_file(&host->shost_dev.kobj, &arcmsr_sysfs_message_read_attr);
245error_bin_file_message_read:
246 return error;
247}
248
249void arcmsr_free_sysfs_attr(struct AdapterControlBlock *acb)
250{
251 struct Scsi_Host *host = acb->host;
252
253 sysfs_remove_bin_file(&host->shost_dev.kobj, &arcmsr_sysfs_message_clear_attr);
254 sysfs_remove_bin_file(&host->shost_dev.kobj, &arcmsr_sysfs_message_write_attr);
255 sysfs_remove_bin_file(&host->shost_dev.kobj, &arcmsr_sysfs_message_read_attr);
256}
257
258
259static ssize_t
260arcmsr_attr_host_driver_version(struct device *dev,
261 struct device_attribute *attr, char *buf)
262{
263 return snprintf(buf, PAGE_SIZE,
264 "%s\n",
265 ARCMSR_DRIVER_VERSION);
266}
267
268static ssize_t
269arcmsr_attr_host_driver_posted_cmd(struct device *dev,
270 struct device_attribute *attr, char *buf)
271{
272 struct Scsi_Host *host = class_to_shost(dev);
273 struct AdapterControlBlock *acb =
274 (struct AdapterControlBlock *) host->hostdata;
275 return snprintf(buf, PAGE_SIZE,
276 "%4d\n",
277 atomic_read(&acb->ccboutstandingcount));
278}
279
280static ssize_t
281arcmsr_attr_host_driver_reset(struct device *dev,
282 struct device_attribute *attr, char *buf)
283{
284 struct Scsi_Host *host = class_to_shost(dev);
285 struct AdapterControlBlock *acb =
286 (struct AdapterControlBlock *) host->hostdata;
287 return snprintf(buf, PAGE_SIZE,
288 "%4d\n",
289 acb->num_resets);
290}
291
292static ssize_t
293arcmsr_attr_host_driver_abort(struct device *dev,
294 struct device_attribute *attr, char *buf)
295{
296 struct Scsi_Host *host = class_to_shost(dev);
297 struct AdapterControlBlock *acb =
298 (struct AdapterControlBlock *) host->hostdata;
299 return snprintf(buf, PAGE_SIZE,
300 "%4d\n",
301 acb->num_aborts);
302}
303
304static ssize_t
305arcmsr_attr_host_fw_model(struct device *dev, struct device_attribute *attr,
306 char *buf)
307{
308 struct Scsi_Host *host = class_to_shost(dev);
309 struct AdapterControlBlock *acb =
310 (struct AdapterControlBlock *) host->hostdata;
311 return snprintf(buf, PAGE_SIZE,
312 "%s\n",
313 acb->firm_model);
314}
315
316static ssize_t
317arcmsr_attr_host_fw_version(struct device *dev,
318 struct device_attribute *attr, char *buf)
319{
320 struct Scsi_Host *host = class_to_shost(dev);
321 struct AdapterControlBlock *acb =
322 (struct AdapterControlBlock *) host->hostdata;
323
324 return snprintf(buf, PAGE_SIZE,
325 "%s\n",
326 acb->firm_version);
327}
328
329static ssize_t
330arcmsr_attr_host_fw_request_len(struct device *dev,
331 struct device_attribute *attr, char *buf)
332{
333 struct Scsi_Host *host = class_to_shost(dev);
334 struct AdapterControlBlock *acb =
335 (struct AdapterControlBlock *) host->hostdata;
336
337 return snprintf(buf, PAGE_SIZE,
338 "%4d\n",
339 acb->firm_request_len);
340}
341
342static ssize_t
343arcmsr_attr_host_fw_numbers_queue(struct device *dev,
344 struct device_attribute *attr, char *buf)
345{
346 struct Scsi_Host *host = class_to_shost(dev);
347 struct AdapterControlBlock *acb =
348 (struct AdapterControlBlock *) host->hostdata;
349
350 return snprintf(buf, PAGE_SIZE,
351 "%4d\n",
352 acb->firm_numbers_queue);
353}
354
355static ssize_t
356arcmsr_attr_host_fw_sdram_size(struct device *dev,
357 struct device_attribute *attr, char *buf)
358{
359 struct Scsi_Host *host = class_to_shost(dev);
360 struct AdapterControlBlock *acb =
361 (struct AdapterControlBlock *) host->hostdata;
362
363 return snprintf(buf, PAGE_SIZE,
364 "%4d\n",
365 acb->firm_sdram_size);
366}
367
368static ssize_t
369arcmsr_attr_host_fw_hd_channels(struct device *dev,
370 struct device_attribute *attr, char *buf)
371{
372 struct Scsi_Host *host = class_to_shost(dev);
373 struct AdapterControlBlock *acb =
374 (struct AdapterControlBlock *) host->hostdata;
375
376 return snprintf(buf, PAGE_SIZE,
377 "%4d\n",
378 acb->firm_hd_channels);
379}
380
381static DEVICE_ATTR(host_driver_version, S_IRUGO, arcmsr_attr_host_driver_version, NULL);
382static DEVICE_ATTR(host_driver_posted_cmd, S_IRUGO, arcmsr_attr_host_driver_posted_cmd, NULL);
383static DEVICE_ATTR(host_driver_reset, S_IRUGO, arcmsr_attr_host_driver_reset, NULL);
384static DEVICE_ATTR(host_driver_abort, S_IRUGO, arcmsr_attr_host_driver_abort, NULL);
385static DEVICE_ATTR(host_fw_model, S_IRUGO, arcmsr_attr_host_fw_model, NULL);
386static DEVICE_ATTR(host_fw_version, S_IRUGO, arcmsr_attr_host_fw_version, NULL);
387static DEVICE_ATTR(host_fw_request_len, S_IRUGO, arcmsr_attr_host_fw_request_len, NULL);
388static DEVICE_ATTR(host_fw_numbers_queue, S_IRUGO, arcmsr_attr_host_fw_numbers_queue, NULL);
389static DEVICE_ATTR(host_fw_sdram_size, S_IRUGO, arcmsr_attr_host_fw_sdram_size, NULL);
390static DEVICE_ATTR(host_fw_hd_channels, S_IRUGO, arcmsr_attr_host_fw_hd_channels, NULL);
391
392struct device_attribute *arcmsr_host_attrs[] = {
393 &dev_attr_host_driver_version,
394 &dev_attr_host_driver_posted_cmd,
395 &dev_attr_host_driver_reset,
396 &dev_attr_host_driver_abort,
397 &dev_attr_host_fw_model,
398 &dev_attr_host_fw_version,
399 &dev_attr_host_fw_request_len,
400 &dev_attr_host_fw_numbers_queue,
401 &dev_attr_host_fw_sdram_size,
402 &dev_attr_host_fw_hd_channels,
403 NULL,
404};