1 /* 2 * QLOGIC LINUX SOFTWARE 3 * 4 * QLogic ISP2x00 device driver for Linux 2.6.x 5 * Copyright (C) 2003-2005 QLogic Corporation 6 * (www.qlogic.com) 7 * 8 * This program is free software; you can redistribute it and/or modify it 9 * under the terms of the GNU General Public License as published by the 10 * Free Software Foundation; either version 2, or (at your option) any 11 * later version. 12 * 13 * This program is distributed in the hope that it will be useful, but 14 * WITHOUT ANY WARRANTY; without even the implied warranty of 15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 16 * General Public License for more details. 17 * 18 */ 19 #include "qla_def.h" 20 21 #include <linux/vmalloc.h> 22 #include <scsi/scsi_transport_fc.h> 23 24 /* SYSFS attributes --------------------------------------------------------- */ 25 26 static ssize_t 27 qla2x00_sysfs_read_fw_dump(struct kobject *kobj, char *buf, loff_t off, 28 size_t count) 29 { 30 struct scsi_qla_host *ha = to_qla_host(dev_to_shost(container_of(kobj, 31 struct device, kobj))); 32 33 if (ha->fw_dump_reading == 0) 34 return 0; 35 if (off > ha->fw_dump_buffer_len) 36 return 0; 37 if (off + count > ha->fw_dump_buffer_len) 38 count = ha->fw_dump_buffer_len - off; 39 40 memcpy(buf, &ha->fw_dump_buffer[off], count); 41 42 return (count); 43 } 44 45 static ssize_t 46 qla2x00_sysfs_write_fw_dump(struct kobject *kobj, char *buf, loff_t off, 47 size_t count) 48 { 49 struct scsi_qla_host *ha = to_qla_host(dev_to_shost(container_of(kobj, 50 struct device, kobj))); 51 int reading; 52 uint32_t dump_size; 53 54 if (off != 0) 55 return (0); 56 57 reading = simple_strtol(buf, NULL, 10); 58 switch (reading) { 59 case 0: 60 if (ha->fw_dump_reading == 1) { 61 qla_printk(KERN_INFO, ha, 62 "Firmware dump cleared on (%ld).\n", 63 ha->host_no); 64 65 vfree(ha->fw_dump_buffer); 66 if (!IS_QLA24XX(ha) && !IS_QLA25XX(ha)) 67 free_pages((unsigned long)ha->fw_dump, 68 ha->fw_dump_order); 69 70 ha->fw_dump_reading = 0; 71 ha->fw_dump_buffer = NULL; 72 ha->fw_dump = NULL; 73 ha->fw_dumped = 0; 74 } 75 break; 76 case 1: 77 if ((ha->fw_dump || ha->fw_dumped) && !ha->fw_dump_reading) { 78 ha->fw_dump_reading = 1; 79 80 if (IS_QLA24XX(ha) || IS_QLA25XX(ha)) 81 dump_size = FW_DUMP_SIZE_24XX; 82 else { 83 dump_size = FW_DUMP_SIZE_1M; 84 if (ha->fw_memory_size < 0x20000) 85 dump_size = FW_DUMP_SIZE_128K; 86 else if (ha->fw_memory_size < 0x80000) 87 dump_size = FW_DUMP_SIZE_512K; 88 } 89 ha->fw_dump_buffer = (char *)vmalloc(dump_size); 90 if (ha->fw_dump_buffer == NULL) { 91 qla_printk(KERN_WARNING, ha, 92 "Unable to allocate memory for firmware " 93 "dump buffer (%d).\n", dump_size); 94 95 ha->fw_dump_reading = 0; 96 return (count); 97 } 98 qla_printk(KERN_INFO, ha, 99 "Firmware dump ready for read on (%ld).\n", 100 ha->host_no); 101 memset(ha->fw_dump_buffer, 0, dump_size); 102 ha->isp_ops.ascii_fw_dump(ha); 103 ha->fw_dump_buffer_len = strlen(ha->fw_dump_buffer); 104 } 105 break; 106 } 107 return (count); 108 } 109 110 static struct bin_attribute sysfs_fw_dump_attr = { 111 .attr = { 112 .name = "fw_dump", 113 .mode = S_IRUSR | S_IWUSR, 114 .owner = THIS_MODULE, 115 }, 116 .size = 0, 117 .read = qla2x00_sysfs_read_fw_dump, 118 .write = qla2x00_sysfs_write_fw_dump, 119 }; 120 121 static ssize_t 122 qla2x00_sysfs_read_nvram(struct kobject *kobj, char *buf, loff_t off, 123 size_t count) 124 { 125 struct scsi_qla_host *ha = to_qla_host(dev_to_shost(container_of(kobj, 126 struct device, kobj))); 127 unsigned long flags; 128 129 if (!capable(CAP_SYS_ADMIN) || off != 0 || count != ha->nvram_size) 130 return 0; 131 132 /* Read NVRAM. */ 133 spin_lock_irqsave(&ha->hardware_lock, flags); 134 ha->isp_ops.read_nvram(ha, (uint8_t *)buf, ha->nvram_base, 135 ha->nvram_size); 136 spin_unlock_irqrestore(&ha->hardware_lock, flags); 137 138 return (count); 139 } 140 141 static ssize_t 142 qla2x00_sysfs_write_nvram(struct kobject *kobj, char *buf, loff_t off, 143 size_t count) 144 { 145 struct scsi_qla_host *ha = to_qla_host(dev_to_shost(container_of(kobj, 146 struct device, kobj))); 147 unsigned long flags; 148 uint16_t cnt; 149 150 if (!capable(CAP_SYS_ADMIN) || off != 0 || count != ha->nvram_size) 151 return 0; 152 153 /* Checksum NVRAM. */ 154 if (IS_QLA24XX(ha) || IS_QLA25XX(ha)) { 155 uint32_t *iter; 156 uint32_t chksum; 157 158 iter = (uint32_t *)buf; 159 chksum = 0; 160 for (cnt = 0; cnt < ((count >> 2) - 1); cnt++) 161 chksum += le32_to_cpu(*iter++); 162 chksum = ~chksum + 1; 163 *iter = cpu_to_le32(chksum); 164 } else { 165 uint8_t *iter; 166 uint8_t chksum; 167 168 iter = (uint8_t *)buf; 169 chksum = 0; 170 for (cnt = 0; cnt < count - 1; cnt++) 171 chksum += *iter++; 172 chksum = ~chksum + 1; 173 *iter = chksum; 174 } 175 176 /* Write NVRAM. */ 177 spin_lock_irqsave(&ha->hardware_lock, flags); 178 ha->isp_ops.write_nvram(ha, (uint8_t *)buf, ha->nvram_base, count); 179 spin_unlock_irqrestore(&ha->hardware_lock, flags); 180 181 return (count); 182 } 183 184 static struct bin_attribute sysfs_nvram_attr = { 185 .attr = { 186 .name = "nvram", 187 .mode = S_IRUSR | S_IWUSR, 188 .owner = THIS_MODULE, 189 }, 190 .size = 0, 191 .read = qla2x00_sysfs_read_nvram, 192 .write = qla2x00_sysfs_write_nvram, 193 }; 194 195 void 196 qla2x00_alloc_sysfs_attr(scsi_qla_host_t *ha) 197 { 198 struct Scsi_Host *host = ha->host; 199 200 sysfs_create_bin_file(&host->shost_gendev.kobj, &sysfs_fw_dump_attr); 201 sysfs_nvram_attr.size = ha->nvram_size; 202 sysfs_create_bin_file(&host->shost_gendev.kobj, &sysfs_nvram_attr); 203 } 204 205 void 206 qla2x00_free_sysfs_attr(scsi_qla_host_t *ha) 207 { 208 struct Scsi_Host *host = ha->host; 209 210 sysfs_remove_bin_file(&host->shost_gendev.kobj, &sysfs_fw_dump_attr); 211 sysfs_remove_bin_file(&host->shost_gendev.kobj, &sysfs_nvram_attr); 212 } 213 214 /* Scsi_Host attributes. */ 215 216 static ssize_t 217 qla2x00_drvr_version_show(struct class_device *cdev, char *buf) 218 { 219 return snprintf(buf, PAGE_SIZE, "%s\n", qla2x00_version_str); 220 } 221 222 static ssize_t 223 qla2x00_fw_version_show(struct class_device *cdev, char *buf) 224 { 225 scsi_qla_host_t *ha = to_qla_host(class_to_shost(cdev)); 226 char fw_str[30]; 227 228 return snprintf(buf, PAGE_SIZE, "%s\n", 229 ha->isp_ops.fw_version_str(ha, fw_str)); 230 } 231 232 static ssize_t 233 qla2x00_serial_num_show(struct class_device *cdev, char *buf) 234 { 235 scsi_qla_host_t *ha = to_qla_host(class_to_shost(cdev)); 236 uint32_t sn; 237 238 sn = ((ha->serial0 & 0x1f) << 16) | (ha->serial2 << 8) | ha->serial1; 239 return snprintf(buf, PAGE_SIZE, "%c%05d\n", 'A' + sn / 100000, 240 sn % 100000); 241 } 242 243 static ssize_t 244 qla2x00_isp_name_show(struct class_device *cdev, char *buf) 245 { 246 scsi_qla_host_t *ha = to_qla_host(class_to_shost(cdev)); 247 return snprintf(buf, PAGE_SIZE, "%s\n", ha->brd_info->isp_name); 248 } 249 250 static ssize_t 251 qla2x00_isp_id_show(struct class_device *cdev, char *buf) 252 { 253 scsi_qla_host_t *ha = to_qla_host(class_to_shost(cdev)); 254 return snprintf(buf, PAGE_SIZE, "%04x %04x %04x %04x\n", 255 ha->product_id[0], ha->product_id[1], ha->product_id[2], 256 ha->product_id[3]); 257 } 258 259 static ssize_t 260 qla2x00_model_name_show(struct class_device *cdev, char *buf) 261 { 262 scsi_qla_host_t *ha = to_qla_host(class_to_shost(cdev)); 263 return snprintf(buf, PAGE_SIZE, "%s\n", ha->model_number); 264 } 265 266 static ssize_t 267 qla2x00_model_desc_show(struct class_device *cdev, char *buf) 268 { 269 scsi_qla_host_t *ha = to_qla_host(class_to_shost(cdev)); 270 return snprintf(buf, PAGE_SIZE, "%s\n", 271 ha->model_desc ? ha->model_desc: ""); 272 } 273 274 static ssize_t 275 qla2x00_pci_info_show(struct class_device *cdev, char *buf) 276 { 277 scsi_qla_host_t *ha = to_qla_host(class_to_shost(cdev)); 278 char pci_info[30]; 279 280 return snprintf(buf, PAGE_SIZE, "%s\n", 281 ha->isp_ops.pci_info_str(ha, pci_info)); 282 } 283 284 static ssize_t 285 qla2x00_state_show(struct class_device *cdev, char *buf) 286 { 287 scsi_qla_host_t *ha = to_qla_host(class_to_shost(cdev)); 288 int len = 0; 289 290 if (atomic_read(&ha->loop_state) == LOOP_DOWN || 291 atomic_read(&ha->loop_state) == LOOP_DEAD) 292 len = snprintf(buf, PAGE_SIZE, "Link Down\n"); 293 else if (atomic_read(&ha->loop_state) != LOOP_READY || 294 test_bit(ABORT_ISP_ACTIVE, &ha->dpc_flags) || 295 test_bit(ISP_ABORT_NEEDED, &ha->dpc_flags)) 296 len = snprintf(buf, PAGE_SIZE, "Unknown Link State\n"); 297 else { 298 len = snprintf(buf, PAGE_SIZE, "Link Up - "); 299 300 switch (ha->current_topology) { 301 case ISP_CFG_NL: 302 len += snprintf(buf + len, PAGE_SIZE-len, "Loop\n"); 303 break; 304 case ISP_CFG_FL: 305 len += snprintf(buf + len, PAGE_SIZE-len, "FL_Port\n"); 306 break; 307 case ISP_CFG_N: 308 len += snprintf(buf + len, PAGE_SIZE-len, 309 "N_Port to N_Port\n"); 310 break; 311 case ISP_CFG_F: 312 len += snprintf(buf + len, PAGE_SIZE-len, "F_Port\n"); 313 break; 314 default: 315 len += snprintf(buf + len, PAGE_SIZE-len, "Loop\n"); 316 break; 317 } 318 } 319 return len; 320 } 321 322 static CLASS_DEVICE_ATTR(driver_version, S_IRUGO, qla2x00_drvr_version_show, 323 NULL); 324 static CLASS_DEVICE_ATTR(fw_version, S_IRUGO, qla2x00_fw_version_show, NULL); 325 static CLASS_DEVICE_ATTR(serial_num, S_IRUGO, qla2x00_serial_num_show, NULL); 326 static CLASS_DEVICE_ATTR(isp_name, S_IRUGO, qla2x00_isp_name_show, NULL); 327 static CLASS_DEVICE_ATTR(isp_id, S_IRUGO, qla2x00_isp_id_show, NULL); 328 static CLASS_DEVICE_ATTR(model_name, S_IRUGO, qla2x00_model_name_show, NULL); 329 static CLASS_DEVICE_ATTR(model_desc, S_IRUGO, qla2x00_model_desc_show, NULL); 330 static CLASS_DEVICE_ATTR(pci_info, S_IRUGO, qla2x00_pci_info_show, NULL); 331 static CLASS_DEVICE_ATTR(state, S_IRUGO, qla2x00_state_show, NULL); 332 333 struct class_device_attribute *qla2x00_host_attrs[] = { 334 &class_device_attr_driver_version, 335 &class_device_attr_fw_version, 336 &class_device_attr_serial_num, 337 &class_device_attr_isp_name, 338 &class_device_attr_isp_id, 339 &class_device_attr_model_name, 340 &class_device_attr_model_desc, 341 &class_device_attr_pci_info, 342 &class_device_attr_state, 343 NULL, 344 }; 345 346 /* Host attributes. */ 347 348 static void 349 qla2x00_get_host_port_id(struct Scsi_Host *shost) 350 { 351 scsi_qla_host_t *ha = to_qla_host(shost); 352 353 fc_host_port_id(shost) = ha->d_id.b.domain << 16 | 354 ha->d_id.b.area << 8 | ha->d_id.b.al_pa; 355 } 356 357 static void 358 qla2x00_get_starget_node_name(struct scsi_target *starget) 359 { 360 struct Scsi_Host *host = dev_to_shost(starget->dev.parent); 361 scsi_qla_host_t *ha = to_qla_host(host); 362 fc_port_t *fcport; 363 u64 node_name = 0; 364 365 list_for_each_entry(fcport, &ha->fcports, list) { 366 if (starget->id == fcport->os_target_id) { 367 node_name = wwn_to_u64(fcport->node_name); 368 break; 369 } 370 } 371 372 fc_starget_node_name(starget) = node_name; 373 } 374 375 static void 376 qla2x00_get_starget_port_name(struct scsi_target *starget) 377 { 378 struct Scsi_Host *host = dev_to_shost(starget->dev.parent); 379 scsi_qla_host_t *ha = to_qla_host(host); 380 fc_port_t *fcport; 381 u64 port_name = 0; 382 383 list_for_each_entry(fcport, &ha->fcports, list) { 384 if (starget->id == fcport->os_target_id) { 385 port_name = wwn_to_u64(fcport->port_name); 386 break; 387 } 388 } 389 390 fc_starget_port_name(starget) = port_name; 391 } 392 393 static void 394 qla2x00_get_starget_port_id(struct scsi_target *starget) 395 { 396 struct Scsi_Host *host = dev_to_shost(starget->dev.parent); 397 scsi_qla_host_t *ha = to_qla_host(host); 398 fc_port_t *fcport; 399 uint32_t port_id = ~0U; 400 401 list_for_each_entry(fcport, &ha->fcports, list) { 402 if (starget->id == fcport->os_target_id) { 403 port_id = fcport->d_id.b.domain << 16 | 404 fcport->d_id.b.area << 8 | fcport->d_id.b.al_pa; 405 break; 406 } 407 } 408 409 fc_starget_port_id(starget) = port_id; 410 } 411 412 static void 413 qla2x00_get_rport_loss_tmo(struct fc_rport *rport) 414 { 415 struct Scsi_Host *host = rport_to_shost(rport); 416 scsi_qla_host_t *ha = to_qla_host(host); 417 418 rport->dev_loss_tmo = ha->port_down_retry_count + 5; 419 } 420 421 static void 422 qla2x00_set_rport_loss_tmo(struct fc_rport *rport, uint32_t timeout) 423 { 424 struct Scsi_Host *host = rport_to_shost(rport); 425 scsi_qla_host_t *ha = to_qla_host(host); 426 427 if (timeout) 428 ha->port_down_retry_count = timeout; 429 else 430 ha->port_down_retry_count = 1; 431 432 rport->dev_loss_tmo = ha->port_down_retry_count + 5; 433 } 434 435 struct fc_function_template qla2xxx_transport_functions = { 436 437 .show_host_node_name = 1, 438 .show_host_port_name = 1, 439 .show_host_supported_classes = 1, 440 441 .get_host_port_id = qla2x00_get_host_port_id, 442 .show_host_port_id = 1, 443 444 .dd_fcrport_size = sizeof(struct fc_port *), 445 .show_rport_supported_classes = 1, 446 447 .get_starget_node_name = qla2x00_get_starget_node_name, 448 .show_starget_node_name = 1, 449 .get_starget_port_name = qla2x00_get_starget_port_name, 450 .show_starget_port_name = 1, 451 .get_starget_port_id = qla2x00_get_starget_port_id, 452 .show_starget_port_id = 1, 453 454 .get_rport_dev_loss_tmo = qla2x00_get_rport_loss_tmo, 455 .set_rport_dev_loss_tmo = qla2x00_set_rport_loss_tmo, 456 .show_rport_dev_loss_tmo = 1, 457 458 }; 459 460 void 461 qla2x00_init_host_attr(scsi_qla_host_t *ha) 462 { 463 fc_host_node_name(ha->host) = wwn_to_u64(ha->init_cb->node_name); 464 fc_host_port_name(ha->host) = wwn_to_u64(ha->init_cb->port_name); 465 fc_host_supported_classes(ha->host) = FC_COS_CLASS3; 466 } 467