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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 | /* ******************************************************************************* ** O.S : Linux ** FILE NAME : arcmsr_attr.c ** BY : Nick Cheng ** Description: attributes exported to sysfs and device host ******************************************************************************* ** Copyright (C) 2002 - 2005, Areca Technology Corporation All rights reserved ** ** Web site: www.areca.com.tw ** E-mail: support@areca.com.tw ** ** This program is free software; you can redistribute it and/or modify ** it under the terms of the GNU General Public License version 2 as ** published by the Free Software Foundation. ** This program is distributed in the hope that it will be useful, ** but WITHOUT ANY WARRANTY; without even the implied warranty of ** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the ** GNU General Public License for more details. ******************************************************************************* ** Redistribution and use in source and binary forms, with or without ** modification, are permitted provided that the following conditions ** are met: ** 1. Redistributions of source code must retain the above copyright ** notice, this list of conditions and the following disclaimer. ** 2. Redistributions in binary form must reproduce the above copyright ** notice, this list of conditions and the following disclaimer in the ** documentation and/or other materials provided with the distribution. ** 3. The name of the author may not be used to endorse or promote products ** derived from this software without specific prior written permission. ** ** THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR ** IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES ** OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. ** IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, ** INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES(INCLUDING,BUT ** NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, ** DATA, OR PROFITS; OR BUSINESS INTERRUPTION)HOWEVER CAUSED AND ON ANY ** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT ** (INCLUDING NEGLIGENCE OR OTHERWISE)ARISING IN ANY WAY OUT OF THE USE OF ** THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. ******************************************************************************* ** For history of changes, see Documentation/scsi/ChangeLog.arcmsr ** Firmware Specification, see Documentation/scsi/arcmsr_spec.rst ******************************************************************************* */ #include <linux/module.h> #include <linux/kernel.h> #include <linux/init.h> #include <linux/errno.h> #include <linux/delay.h> #include <linux/pci.h> #include <linux/circ_buf.h> #include <scsi/scsi_cmnd.h> #include <scsi/scsi_device.h> #include <scsi/scsi_host.h> #include <scsi/scsi_transport.h> #include "arcmsr.h" static ssize_t arcmsr_sysfs_iop_message_read(struct file *filp, struct kobject *kobj, struct bin_attribute *bin, char *buf, loff_t off, size_t count) { struct device *dev = container_of(kobj,struct device,kobj); struct Scsi_Host *host = class_to_shost(dev); struct AdapterControlBlock *acb = (struct AdapterControlBlock *) host->hostdata; uint8_t *ptmpQbuffer; int32_t allxfer_len = 0; unsigned long flags; if (!capable(CAP_SYS_ADMIN)) return -EACCES; /* do message unit read. */ ptmpQbuffer = (uint8_t *)buf; spin_lock_irqsave(&acb->rqbuffer_lock, flags); if (acb->rqbuf_getIndex != acb->rqbuf_putIndex) { unsigned int tail = acb->rqbuf_getIndex; unsigned int head = acb->rqbuf_putIndex; unsigned int cnt_to_end = CIRC_CNT_TO_END(head, tail, ARCMSR_MAX_QBUFFER); allxfer_len = CIRC_CNT(head, tail, ARCMSR_MAX_QBUFFER); if (allxfer_len > ARCMSR_API_DATA_BUFLEN) allxfer_len = ARCMSR_API_DATA_BUFLEN; if (allxfer_len <= cnt_to_end) memcpy(ptmpQbuffer, acb->rqbuffer + tail, allxfer_len); else { memcpy(ptmpQbuffer, acb->rqbuffer + tail, cnt_to_end); memcpy(ptmpQbuffer + cnt_to_end, acb->rqbuffer, allxfer_len - cnt_to_end); } acb->rqbuf_getIndex = (acb->rqbuf_getIndex + allxfer_len) % ARCMSR_MAX_QBUFFER; } if (acb->acb_flags & ACB_F_IOPDATA_OVERFLOW) { struct QBUFFER __iomem *prbuffer; acb->acb_flags &= ~ACB_F_IOPDATA_OVERFLOW; prbuffer = arcmsr_get_iop_rqbuffer(acb); if (arcmsr_Read_iop_rqbuffer_data(acb, prbuffer) == 0) acb->acb_flags |= ACB_F_IOPDATA_OVERFLOW; } spin_unlock_irqrestore(&acb->rqbuffer_lock, flags); return allxfer_len; } static ssize_t arcmsr_sysfs_iop_message_write(struct file *filp, struct kobject *kobj, struct bin_attribute *bin, char *buf, loff_t off, size_t count) { struct device *dev = container_of(kobj,struct device,kobj); struct Scsi_Host *host = class_to_shost(dev); struct AdapterControlBlock *acb = (struct AdapterControlBlock *) host->hostdata; int32_t user_len, cnt2end; uint8_t *pQbuffer, *ptmpuserbuffer; unsigned long flags; if (!capable(CAP_SYS_ADMIN)) return -EACCES; if (count > ARCMSR_API_DATA_BUFLEN) return -EINVAL; /* do message unit write. */ ptmpuserbuffer = (uint8_t *)buf; user_len = (int32_t)count; spin_lock_irqsave(&acb->wqbuffer_lock, flags); if (acb->wqbuf_putIndex != acb->wqbuf_getIndex) { arcmsr_write_ioctldata2iop(acb); spin_unlock_irqrestore(&acb->wqbuffer_lock, flags); return 0; /*need retry*/ } else { pQbuffer = &acb->wqbuffer[acb->wqbuf_putIndex]; cnt2end = ARCMSR_MAX_QBUFFER - acb->wqbuf_putIndex; if (user_len > cnt2end) { memcpy(pQbuffer, ptmpuserbuffer, cnt2end); ptmpuserbuffer += cnt2end; user_len -= cnt2end; acb->wqbuf_putIndex = 0; pQbuffer = acb->wqbuffer; } memcpy(pQbuffer, ptmpuserbuffer, user_len); acb->wqbuf_putIndex += user_len; acb->wqbuf_putIndex %= ARCMSR_MAX_QBUFFER; if (acb->acb_flags & ACB_F_MESSAGE_WQBUFFER_CLEARED) { acb->acb_flags &= ~ACB_F_MESSAGE_WQBUFFER_CLEARED; arcmsr_write_ioctldata2iop(acb); } spin_unlock_irqrestore(&acb->wqbuffer_lock, flags); return count; } } static ssize_t arcmsr_sysfs_iop_message_clear(struct file *filp, struct kobject *kobj, struct bin_attribute *bin, char *buf, loff_t off, size_t count) { struct device *dev = container_of(kobj,struct device,kobj); struct Scsi_Host *host = class_to_shost(dev); struct AdapterControlBlock *acb = (struct AdapterControlBlock *) host->hostdata; uint8_t *pQbuffer; unsigned long flags; if (!capable(CAP_SYS_ADMIN)) return -EACCES; arcmsr_clear_iop2drv_rqueue_buffer(acb); acb->acb_flags |= (ACB_F_MESSAGE_WQBUFFER_CLEARED | ACB_F_MESSAGE_RQBUFFER_CLEARED | ACB_F_MESSAGE_WQBUFFER_READED); spin_lock_irqsave(&acb->rqbuffer_lock, flags); acb->rqbuf_getIndex = 0; acb->rqbuf_putIndex = 0; spin_unlock_irqrestore(&acb->rqbuffer_lock, flags); spin_lock_irqsave(&acb->wqbuffer_lock, flags); acb->wqbuf_getIndex = 0; acb->wqbuf_putIndex = 0; spin_unlock_irqrestore(&acb->wqbuffer_lock, flags); pQbuffer = acb->rqbuffer; memset(pQbuffer, 0, sizeof (struct QBUFFER)); pQbuffer = acb->wqbuffer; memset(pQbuffer, 0, sizeof (struct QBUFFER)); return 1; } static const struct bin_attribute arcmsr_sysfs_message_read_attr = { .attr = { .name = "mu_read", .mode = S_IRUSR , }, .size = ARCMSR_API_DATA_BUFLEN, .read = arcmsr_sysfs_iop_message_read, }; static const struct bin_attribute arcmsr_sysfs_message_write_attr = { .attr = { .name = "mu_write", .mode = S_IWUSR, }, .size = ARCMSR_API_DATA_BUFLEN, .write = arcmsr_sysfs_iop_message_write, }; static const struct bin_attribute arcmsr_sysfs_message_clear_attr = { .attr = { .name = "mu_clear", .mode = S_IWUSR, }, .size = 1, .write = arcmsr_sysfs_iop_message_clear, }; int arcmsr_alloc_sysfs_attr(struct AdapterControlBlock *acb) { struct Scsi_Host *host = acb->host; int error; error = sysfs_create_bin_file(&host->shost_dev.kobj, &arcmsr_sysfs_message_read_attr); if (error) { printk(KERN_ERR "arcmsr: alloc sysfs mu_read failed\n"); goto error_bin_file_message_read; } error = sysfs_create_bin_file(&host->shost_dev.kobj, &arcmsr_sysfs_message_write_attr); if (error) { printk(KERN_ERR "arcmsr: alloc sysfs mu_write failed\n"); goto error_bin_file_message_write; } error = sysfs_create_bin_file(&host->shost_dev.kobj, &arcmsr_sysfs_message_clear_attr); if (error) { printk(KERN_ERR "arcmsr: alloc sysfs mu_clear failed\n"); goto error_bin_file_message_clear; } return 0; error_bin_file_message_clear: sysfs_remove_bin_file(&host->shost_dev.kobj, &arcmsr_sysfs_message_write_attr); error_bin_file_message_write: sysfs_remove_bin_file(&host->shost_dev.kobj, &arcmsr_sysfs_message_read_attr); error_bin_file_message_read: return error; } void arcmsr_free_sysfs_attr(struct AdapterControlBlock *acb) { struct Scsi_Host *host = acb->host; sysfs_remove_bin_file(&host->shost_dev.kobj, &arcmsr_sysfs_message_clear_attr); sysfs_remove_bin_file(&host->shost_dev.kobj, &arcmsr_sysfs_message_write_attr); sysfs_remove_bin_file(&host->shost_dev.kobj, &arcmsr_sysfs_message_read_attr); } static ssize_t arcmsr_attr_host_driver_version(struct device *dev, struct device_attribute *attr, char *buf) { return snprintf(buf, PAGE_SIZE, "%s\n", ARCMSR_DRIVER_VERSION); } static ssize_t arcmsr_attr_host_driver_posted_cmd(struct device *dev, struct device_attribute *attr, char *buf) { struct Scsi_Host *host = class_to_shost(dev); struct AdapterControlBlock *acb = (struct AdapterControlBlock *) host->hostdata; return snprintf(buf, PAGE_SIZE, "%4d\n", atomic_read(&acb->ccboutstandingcount)); } static ssize_t arcmsr_attr_host_driver_reset(struct device *dev, struct device_attribute *attr, char *buf) { struct Scsi_Host *host = class_to_shost(dev); struct AdapterControlBlock *acb = (struct AdapterControlBlock *) host->hostdata; return snprintf(buf, PAGE_SIZE, "%4d\n", acb->num_resets); } static ssize_t arcmsr_attr_host_driver_abort(struct device *dev, struct device_attribute *attr, char *buf) { struct Scsi_Host *host = class_to_shost(dev); struct AdapterControlBlock *acb = (struct AdapterControlBlock *) host->hostdata; return snprintf(buf, PAGE_SIZE, "%4d\n", acb->num_aborts); } static ssize_t arcmsr_attr_host_fw_model(struct device *dev, struct device_attribute *attr, char *buf) { struct Scsi_Host *host = class_to_shost(dev); struct AdapterControlBlock *acb = (struct AdapterControlBlock *) host->hostdata; return snprintf(buf, PAGE_SIZE, "%s\n", acb->firm_model); } static ssize_t arcmsr_attr_host_fw_version(struct device *dev, struct device_attribute *attr, char *buf) { struct Scsi_Host *host = class_to_shost(dev); struct AdapterControlBlock *acb = (struct AdapterControlBlock *) host->hostdata; return snprintf(buf, PAGE_SIZE, "%s\n", acb->firm_version); } static ssize_t arcmsr_attr_host_fw_request_len(struct device *dev, struct device_attribute *attr, char *buf) { struct Scsi_Host *host = class_to_shost(dev); struct AdapterControlBlock *acb = (struct AdapterControlBlock *) host->hostdata; return snprintf(buf, PAGE_SIZE, "%4d\n", acb->firm_request_len); } static ssize_t arcmsr_attr_host_fw_numbers_queue(struct device *dev, struct device_attribute *attr, char *buf) { struct Scsi_Host *host = class_to_shost(dev); struct AdapterControlBlock *acb = (struct AdapterControlBlock *) host->hostdata; return snprintf(buf, PAGE_SIZE, "%4d\n", acb->firm_numbers_queue); } static ssize_t arcmsr_attr_host_fw_sdram_size(struct device *dev, struct device_attribute *attr, char *buf) { struct Scsi_Host *host = class_to_shost(dev); struct AdapterControlBlock *acb = (struct AdapterControlBlock *) host->hostdata; return snprintf(buf, PAGE_SIZE, "%4d\n", acb->firm_sdram_size); } static ssize_t arcmsr_attr_host_fw_hd_channels(struct device *dev, struct device_attribute *attr, char *buf) { struct Scsi_Host *host = class_to_shost(dev); struct AdapterControlBlock *acb = (struct AdapterControlBlock *) host->hostdata; return snprintf(buf, PAGE_SIZE, "%4d\n", acb->firm_hd_channels); } static DEVICE_ATTR(host_driver_version, S_IRUGO, arcmsr_attr_host_driver_version, NULL); static DEVICE_ATTR(host_driver_posted_cmd, S_IRUGO, arcmsr_attr_host_driver_posted_cmd, NULL); static DEVICE_ATTR(host_driver_reset, S_IRUGO, arcmsr_attr_host_driver_reset, NULL); static DEVICE_ATTR(host_driver_abort, S_IRUGO, arcmsr_attr_host_driver_abort, NULL); static DEVICE_ATTR(host_fw_model, S_IRUGO, arcmsr_attr_host_fw_model, NULL); static DEVICE_ATTR(host_fw_version, S_IRUGO, arcmsr_attr_host_fw_version, NULL); static DEVICE_ATTR(host_fw_request_len, S_IRUGO, arcmsr_attr_host_fw_request_len, NULL); static DEVICE_ATTR(host_fw_numbers_queue, S_IRUGO, arcmsr_attr_host_fw_numbers_queue, NULL); static DEVICE_ATTR(host_fw_sdram_size, S_IRUGO, arcmsr_attr_host_fw_sdram_size, NULL); static DEVICE_ATTR(host_fw_hd_channels, S_IRUGO, arcmsr_attr_host_fw_hd_channels, NULL); static struct attribute *arcmsr_host_attrs[] = { &dev_attr_host_driver_version.attr, &dev_attr_host_driver_posted_cmd.attr, &dev_attr_host_driver_reset.attr, &dev_attr_host_driver_abort.attr, &dev_attr_host_fw_model.attr, &dev_attr_host_fw_version.attr, &dev_attr_host_fw_request_len.attr, &dev_attr_host_fw_numbers_queue.attr, &dev_attr_host_fw_sdram_size.attr, &dev_attr_host_fw_hd_channels.attr, NULL, }; static const struct attribute_group arcmsr_host_attr_group = { .attrs = arcmsr_host_attrs, }; const struct attribute_group *arcmsr_host_groups[] = { &arcmsr_host_attr_group, NULL }; |