drivers/scsi/pm8001/pm8001_ctl.c

   1 /*
   2  * PMC-Sierra SPC 8001 SAS/SATA based host adapters driver
   3  *
   4  * Copyright (c) 2008-2009 USI Co., Ltd.
   5  * All rights reserved.
   6  *
   7  * Redistribution and use in source and binary forms, with or without
   8  * modification, are permitted provided that the following conditions
   9  * are met:
  10  * 1. Redistributions of source code must retain the above copyright
  11  *    notice, this list of conditions, and the following disclaimer,
  12  *    without modification.
  13  * 2. Redistributions in binary form must reproduce at minimum a disclaimer
  14  *    substantially similar to the "NO WARRANTY" disclaimer below
  15  *    ("Disclaimer") and any redistribution must be conditioned upon
  16  *    including a substantially similar Disclaimer requirement for further
  17  *    binary redistribution.
  18  * 3. Neither the names of the above-listed copyright holders nor the names
  19  *    of any contributors may be used to endorse or promote products derived
  20  *    from this software without specific prior written permission.
  21  *
  22  * Alternatively, this software may be distributed under the terms of the
  23  * GNU General Public License ("GPL") version 2 as published by the Free
  24  * Software Foundation.
  25  *
  26  * NO WARRANTY
  27  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  28  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  29  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
  30  * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
  31  * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  32  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  33  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  34  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
  35  * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
  36  * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
  37  * POSSIBILITY OF SUCH DAMAGES.
  38  *
  39  */
  40 #include <linux/firmware.h>
  41 #include "pm8001_sas.h"
  42 #include "pm8001_ctl.h"
  43
  44 /* scsi host attributes */
  45
  46 /**
  47  * pm8001_ctl_mpi_interface_rev_show - MPI interface revision number
  48  * @cdev: pointer to embedded class device
  49  * @buf: the buffer returned
  50  *
  51  * A sysfs 'read-only' shost attribute.
  52  */
  53 static ssize_t pm8001_ctl_mpi_interface_rev_show(struct device *cdev,
  54         struct device_attribute *attr, char *buf)
  55 {
  56         struct Scsi_Host *shost = class_to_shost(cdev);
  57         struct sas_ha_struct *sha = SHOST_TO_SAS_HA(shost);
  58         struct pm8001_hba_info *pm8001_ha = sha->lldd_ha;
  59
  60         return snprintf(buf, PAGE_SIZE, "%d\n",
  61                 pm8001_ha->main_cfg_tbl.interface_rev);
  62 }
  63 static
  64 DEVICE_ATTR(interface_rev, S_IRUGO, pm8001_ctl_mpi_interface_rev_show, NULL);
  65
  66 /**
  67  * pm8001_ctl_fw_version_show - firmware version
  68  * @cdev: pointer to embedded class device
  69  * @buf: the buffer returned
  70  *
  71  * A sysfs 'read-only' shost attribute.
  72  */
  73 static ssize_t pm8001_ctl_fw_version_show(struct device *cdev,
  74         struct device_attribute *attr, char *buf)
  75 {
  76         struct Scsi_Host *shost = class_to_shost(cdev);
  77         struct sas_ha_struct *sha = SHOST_TO_SAS_HA(shost);
  78         struct pm8001_hba_info *pm8001_ha = sha->lldd_ha;
  79
  80         return snprintf(buf, PAGE_SIZE, "%02x.%02x.%02x.%02x\n",
  81                        (u8)(pm8001_ha->main_cfg_tbl.firmware_rev >> 24),
  82                        (u8)(pm8001_ha->main_cfg_tbl.firmware_rev >> 16),
  83                        (u8)(pm8001_ha->main_cfg_tbl.firmware_rev >> 8),
  84                        (u8)(pm8001_ha->main_cfg_tbl.firmware_rev));
  85 }
  86 static DEVICE_ATTR(fw_version, S_IRUGO, pm8001_ctl_fw_version_show, NULL);
  87 /**
  88  * pm8001_ctl_max_out_io_show - max outstanding io supported
  89  * @cdev: pointer to embedded class device
  90  * @buf: the buffer returned
  91  *
  92  * A sysfs 'read-only' shost attribute.
  93  */
  94 static ssize_t pm8001_ctl_max_out_io_show(struct device *cdev,
  95         struct device_attribute *attr, char *buf)
  96 {
  97         struct Scsi_Host *shost = class_to_shost(cdev);
  98         struct sas_ha_struct *sha = SHOST_TO_SAS_HA(shost);
  99         struct pm8001_hba_info *pm8001_ha = sha->lldd_ha;
 100
 101         return snprintf(buf, PAGE_SIZE, "%d\n",
 102                         pm8001_ha->main_cfg_tbl.max_out_io);
 103 }
 104 static DEVICE_ATTR(max_out_io, S_IRUGO, pm8001_ctl_max_out_io_show, NULL);
 105 /**
 106  * pm8001_ctl_max_devices_show - max devices support
 107  * @cdev: pointer to embedded class device
 108  * @buf: the buffer returned
 109  *
 110  * A sysfs 'read-only' shost attribute.
 111  */
 112 static ssize_t pm8001_ctl_max_devices_show(struct device *cdev,
 113         struct device_attribute *attr, char *buf)
 114 {
 115         struct Scsi_Host *shost = class_to_shost(cdev);
 116         struct sas_ha_struct *sha = SHOST_TO_SAS_HA(shost);
 117         struct pm8001_hba_info *pm8001_ha = sha->lldd_ha;
 118
 119         return snprintf(buf, PAGE_SIZE, "%04d\n",
 120                         (u16)(pm8001_ha->main_cfg_tbl.max_sgl >> 16));
 121 }
 122 static DEVICE_ATTR(max_devices, S_IRUGO, pm8001_ctl_max_devices_show, NULL);
 123 /**
 124  * pm8001_ctl_max_sg_list_show - max sg list supported iff not 0.0 for no
 125  * hardware limitation
 126  * @cdev: pointer to embedded class device
 127  * @buf: the buffer returned
 128  *
 129  * A sysfs 'read-only' shost attribute.
 130  */
 131 static ssize_t pm8001_ctl_max_sg_list_show(struct device *cdev,
 132         struct device_attribute *attr, char *buf)
 133 {
 134         struct Scsi_Host *shost = class_to_shost(cdev);
 135         struct sas_ha_struct *sha = SHOST_TO_SAS_HA(shost);
 136         struct pm8001_hba_info *pm8001_ha = sha->lldd_ha;
 137
 138         return snprintf(buf, PAGE_SIZE, "%04d\n",
 139                         pm8001_ha->main_cfg_tbl.max_sgl & 0x0000FFFF);
 140 }
 141 static DEVICE_ATTR(max_sg_list, S_IRUGO, pm8001_ctl_max_sg_list_show, NULL);
 142
 143 #define SAS_1_0 0x1
 144 #define SAS_1_1 0x2
 145 #define SAS_2_0 0x4
 146
 147 static ssize_t
 148 show_sas_spec_support_status(unsigned int mode, char *buf)
 149 {
 150         ssize_t len = 0;
 151
 152         if (mode & SAS_1_1)
 153                 len = sprintf(buf, "%s", "SAS1.1");
 154         if (mode & SAS_2_0)
 155                 len += sprintf(buf + len, "%s%s", len ? ", " : "", "SAS2.0");
 156         len += sprintf(buf + len, "\n");
 157
 158         return len;
 159 }
 160
 161 /**
 162  * pm8001_ctl_sas_spec_support_show - sas spec supported
 163  * @cdev: pointer to embedded class device
 164  * @buf: the buffer returned
 165  *
 166  * A sysfs 'read-only' shost attribute.
 167  */
 168 static ssize_t pm8001_ctl_sas_spec_support_show(struct device *cdev,
 169         struct device_attribute *attr, char *buf)
 170 {
 171         unsigned int mode;
 172         struct Scsi_Host *shost = class_to_shost(cdev);
 173         struct sas_ha_struct *sha = SHOST_TO_SAS_HA(shost);
 174         struct pm8001_hba_info *pm8001_ha = sha->lldd_ha;
 175         mode = (pm8001_ha->main_cfg_tbl.ctrl_cap_flag & 0xfe000000)>>25;
 176         return show_sas_spec_support_status(mode, buf);
 177 }
 178 static DEVICE_ATTR(sas_spec_support, S_IRUGO,
 179                    pm8001_ctl_sas_spec_support_show, NULL);
 180
 181 /**
 182  * pm8001_ctl_sas_address_show - sas address
 183  * @cdev: pointer to embedded class device
 184  * @buf: the buffer returned
 185  *
 186  * This is the controller sas address
 187  *
 188  * A sysfs 'read-only' shost attribute.
 189  */
 190 static ssize_t pm8001_ctl_host_sas_address_show(struct device *cdev,
 191         struct device_attribute *attr, char *buf)
 192 {
 193         struct Scsi_Host *shost = class_to_shost(cdev);
 194         struct sas_ha_struct *sha = SHOST_TO_SAS_HA(shost);
 195         struct pm8001_hba_info *pm8001_ha = sha->lldd_ha;
 196         return snprintf(buf, PAGE_SIZE, "0x%016llx\n",
 197                         be64_to_cpu(*(__be64 *)pm8001_ha->sas_addr));
 198 }
 199 static DEVICE_ATTR(host_sas_address, S_IRUGO,
 200                    pm8001_ctl_host_sas_address_show, NULL);
 201
 202 /**
 203  * pm8001_ctl_logging_level_show - logging level
 204  * @cdev: pointer to embedded class device
 205  * @buf: the buffer returned
 206  *
 207  * A sysfs 'read/write' shost attribute.
 208  */
 209 static ssize_t pm8001_ctl_logging_level_show(struct device *cdev,
 210         struct device_attribute *attr, char *buf)
 211 {
 212         struct Scsi_Host *shost = class_to_shost(cdev);
 213         struct sas_ha_struct *sha = SHOST_TO_SAS_HA(shost);
 214         struct pm8001_hba_info *pm8001_ha = sha->lldd_ha;
 215
 216         return snprintf(buf, PAGE_SIZE, "%08xh\n", pm8001_ha->logging_level);
 217 }
 218 static ssize_t pm8001_ctl_logging_level_store(struct device *cdev,
 219         struct device_attribute *attr, const char *buf, size_t count)
 220 {
 221         struct Scsi_Host *shost = class_to_shost(cdev);
 222         struct sas_ha_struct *sha = SHOST_TO_SAS_HA(shost);
 223         struct pm8001_hba_info *pm8001_ha = sha->lldd_ha;
 224         int val = 0;
 225
 226         if (sscanf(buf, "%x", &val) != 1)
 227                 return -EINVAL;
 228
 229         pm8001_ha->logging_level = val;
 230         return strlen(buf);
 231 }
 232
 233 static DEVICE_ATTR(logging_level, S_IRUGO | S_IWUSR,
 234         pm8001_ctl_logging_level_show, pm8001_ctl_logging_level_store);
 235 /**
 236  * pm8001_ctl_aap_log_show - aap1 event log
 237  * @cdev: pointer to embedded class device
 238  * @buf: the buffer returned
 239  *
 240  * A sysfs 'read-only' shost attribute.
 241  */
 242 static ssize_t pm8001_ctl_aap_log_show(struct device *cdev,
 243         struct device_attribute *attr, char *buf)
 244 {
 245         struct Scsi_Host *shost = class_to_shost(cdev);
 246         struct sas_ha_struct *sha = SHOST_TO_SAS_HA(shost);
 247         struct pm8001_hba_info *pm8001_ha = sha->lldd_ha;
 248         int i;
 249 #define AAP1_MEMMAP(r, c) \
 250         (*(u32 *)((u8*)pm8001_ha->memoryMap.region[AAP1].virt_ptr + (r) * 32 \
 251         + (c)))
 252
 253         char *str = buf;
 254         int max = 2;
 255         for (i = 0; i < max; i++) {
 256                 str += sprintf(str, "0x%08x 0x%08x 0x%08x 0x%08x 0x%08x 0x%08x"
 257                                "0x%08x 0x%08x\n",
 258                                AAP1_MEMMAP(i, 0),
 259                                AAP1_MEMMAP(i, 4),
 260                                AAP1_MEMMAP(i, 8),
 261                                AAP1_MEMMAP(i, 12),
 262                                AAP1_MEMMAP(i, 16),
 263                                AAP1_MEMMAP(i, 20),
 264                                AAP1_MEMMAP(i, 24),
 265                                AAP1_MEMMAP(i, 28));
 266         }
 267
 268         return str - buf;
 269 }
 270 static DEVICE_ATTR(aap_log, S_IRUGO, pm8001_ctl_aap_log_show, NULL);
 271 /**
 272  * pm8001_ctl_aap_log_show - IOP event log
 273  * @cdev: pointer to embedded class device
 274  * @buf: the buffer returned
 275  *
 276  * A sysfs 'read-only' shost attribute.
 277  */
 278 static ssize_t pm8001_ctl_iop_log_show(struct device *cdev,
 279         struct device_attribute *attr, char *buf)
 280 {
 281         struct Scsi_Host *shost = class_to_shost(cdev);
 282         struct sas_ha_struct *sha = SHOST_TO_SAS_HA(shost);
 283         struct pm8001_hba_info *pm8001_ha = sha->lldd_ha;
 284 #define IOP_MEMMAP(r, c) \
 285         (*(u32 *)((u8*)pm8001_ha->memoryMap.region[IOP].virt_ptr + (r) * 32 \
 286         + (c)))
 287         int i;
 288         char *str = buf;
 289         int max = 2;
 290         for (i = 0; i < max; i++) {
 291                 str += sprintf(str, "0x%08x 0x%08x 0x%08x 0x%08x 0x%08x 0x%08x"
 292                                "0x%08x 0x%08x\n",
 293                                IOP_MEMMAP(i, 0),
 294                                IOP_MEMMAP(i, 4),
 295                                IOP_MEMMAP(i, 8),
 296                                IOP_MEMMAP(i, 12),
 297                                IOP_MEMMAP(i, 16),
 298                                IOP_MEMMAP(i, 20),
 299                                IOP_MEMMAP(i, 24),
 300                                IOP_MEMMAP(i, 28));
 301         }
 302
 303         return str - buf;
 304 }
 305 static DEVICE_ATTR(iop_log, S_IRUGO, pm8001_ctl_iop_log_show, NULL);
 306
 307 #define FLASH_CMD_NONE      0x00
 308 #define FLASH_CMD_UPDATE    0x01
 309 #define FLASH_CMD_SET_NVMD    0x02
 310
 311 struct flash_command {
 312      u8      command[8];
 313      int     code;
 314 };
 315
 316 static struct flash_command flash_command_table[] =
 317 {
 318      {"set_nvmd",    FLASH_CMD_SET_NVMD},
 319      {"update",      FLASH_CMD_UPDATE},
 320      {"",            FLASH_CMD_NONE} /* Last entry should be NULL. */
 321 };
 322
 323 struct error_fw {
 324      char    *reason;
 325      int     err_code;
 326 };
 327
 328 static struct error_fw flash_error_table[] =
 329 {
 330      {"Failed to open fw image file",   FAIL_OPEN_BIOS_FILE},
 331      {"image header mismatch",          FLASH_UPDATE_HDR_ERR},
 332      {"image offset mismatch",          FLASH_UPDATE_OFFSET_ERR},
 333      {"image CRC Error",                FLASH_UPDATE_CRC_ERR},
 334      {"image length Error.",            FLASH_UPDATE_LENGTH_ERR},
 335      {"Failed to program flash chip",   FLASH_UPDATE_HW_ERR},
 336      {"Flash chip not supported.",      FLASH_UPDATE_DNLD_NOT_SUPPORTED},
 337      {"Flash update disabled.",         FLASH_UPDATE_DISABLED},
 338      {"Flash in progress",              FLASH_IN_PROGRESS},
 339      {"Image file size Error",          FAIL_FILE_SIZE},
 340      {"Input parameter error",          FAIL_PARAMETERS},
 341      {"Out of memory",                  FAIL_OUT_MEMORY},
 342      {"OK", 0}  /* Last entry err_code = 0. */
 343 };
 344
 345 static int pm8001_set_nvmd(struct pm8001_hba_info *pm8001_ha)
 346 {
 347         struct pm8001_ioctl_payload     *payload;
 348         DECLARE_COMPLETION_ONSTACK(completion);
 349         u8              *ioctlbuffer = NULL;
 350         u32             length = 0;
 351         u32             ret = 0;
 352
 353         length = 1024 * 5 + sizeof(*payload) - 1;
 354         ioctlbuffer = kzalloc(length, GFP_KERNEL);
 355         if (!ioctlbuffer)
 356                 return -ENOMEM;
 357         if ((pm8001_ha->fw_image->size <= 0) ||
 358             (pm8001_ha->fw_image->size > 4096)) {
 359                 ret = FAIL_FILE_SIZE;
 360                 goto out;
 361         }
 362         payload = (struct pm8001_ioctl_payload *)ioctlbuffer;
 363         memcpy((u8 *)payload->func_specific, (u8 *)pm8001_ha->fw_image->data,
 364                                 pm8001_ha->fw_image->size);
 365         payload->length = pm8001_ha->fw_image->size;
 366         payload->id = 0;
 367         pm8001_ha->nvmd_completion = &completion;
 368         ret = PM8001_CHIP_DISP->set_nvmd_req(pm8001_ha, payload);
 369         wait_for_completion(&completion);
 370 out:
 371         kfree(ioctlbuffer);
 372         return ret;
 373 }
 374
 375 static int pm8001_update_flash(struct pm8001_hba_info *pm8001_ha)
 376 {
 377         struct pm8001_ioctl_payload     *payload;
 378         DECLARE_COMPLETION_ONSTACK(completion);
 379         u8              *ioctlbuffer = NULL;
 380         u32             length = 0;
 381         struct fw_control_info  *fwControl;
 382         u32             loopNumber, loopcount = 0;
 383         u32             sizeRead = 0;
 384         u32             partitionSize, partitionSizeTmp;
 385         u32             ret = 0;
 386         u32             partitionNumber = 0;
 387         struct pm8001_fw_image_header *image_hdr;
 388
 389         length = 1024 * 16 + sizeof(*payload) - 1;
 390         ioctlbuffer = kzalloc(length, GFP_KERNEL);
 391         image_hdr = (struct pm8001_fw_image_header *)pm8001_ha->fw_image->data;
 392         if (!ioctlbuffer)
 393                 return -ENOMEM;
 394         if (pm8001_ha->fw_image->size < 28) {
 395                 ret = FAIL_FILE_SIZE;
 396                 goto out;
 397         }
 398
 399         while (sizeRead < pm8001_ha->fw_image->size) {
 400                 partitionSizeTmp =
 401                         *(u32 *)((u8 *)&image_hdr->image_length + sizeRead);
 402                 partitionSize = be32_to_cpu(partitionSizeTmp);
 403                 loopcount = (partitionSize + HEADER_LEN)/IOCTL_BUF_SIZE;
 404                 if (loopcount % IOCTL_BUF_SIZE)
 405                         loopcount++;
 406                 if (loopcount == 0)
 407                         loopcount++;
 408                 for (loopNumber = 0; loopNumber < loopcount; loopNumber++) {
 409                         payload = (struct pm8001_ioctl_payload *)ioctlbuffer;
 410                         payload->length = 1024*16;
 411                         payload->id = 0;
 412                         fwControl =
 413                               (struct fw_control_info *)payload->func_specific;
 414                         fwControl->len = IOCTL_BUF_SIZE;   /* IN */
 415                         fwControl->size = partitionSize + HEADER_LEN;/* IN */
 416                         fwControl->retcode = 0;/* OUT */
 417                         fwControl->offset = loopNumber * IOCTL_BUF_SIZE;/*OUT */
 418
 419                 /* for the last chunk of data in case file size is not even with
 420                 4k, load only the rest*/
 421                 if (((loopcount-loopNumber) == 1) &&
 422                         ((partitionSize + HEADER_LEN) % IOCTL_BUF_SIZE)) {
 423                         fwControl->len =
 424                                 (partitionSize + HEADER_LEN) % IOCTL_BUF_SIZE;
 425                         memcpy((u8 *)fwControl->buffer,
 426                                 (u8 *)pm8001_ha->fw_image->data + sizeRead,
 427                                 (partitionSize + HEADER_LEN) % IOCTL_BUF_SIZE);
 428                         sizeRead +=
 429                                 (partitionSize + HEADER_LEN) % IOCTL_BUF_SIZE;
 430                 } else {
 431                         memcpy((u8 *)fwControl->buffer,
 432                                 (u8 *)pm8001_ha->fw_image->data + sizeRead,
 433                                 IOCTL_BUF_SIZE);
 434                         sizeRead += IOCTL_BUF_SIZE;
 435                 }
 436
 437                 pm8001_ha->nvmd_completion = &completion;
 438                 ret = PM8001_CHIP_DISP->fw_flash_update_req(pm8001_ha, payload);
 439                 wait_for_completion(&completion);
 440                 if (ret || (fwControl->retcode > FLASH_UPDATE_IN_PROGRESS)) {
 441                         ret = fwControl->retcode;
 442                         kfree(ioctlbuffer);
 443                         ioctlbuffer = NULL;
 444                         break;
 445                 }
 446         }
 447         if (ret)
 448                 break;
 449         partitionNumber++;
 450 }
 451 out:
 452         kfree(ioctlbuffer);
 453         return ret;
 454 }
 455 static ssize_t pm8001_store_update_fw(struct device *cdev,
 456                                       struct device_attribute *attr,
 457                                       const char *buf, size_t count)
 458 {
 459         struct Scsi_Host *shost = class_to_shost(cdev);
 460         struct sas_ha_struct *sha = SHOST_TO_SAS_HA(shost);
 461         struct pm8001_hba_info *pm8001_ha = sha->lldd_ha;
 462         char *cmd_ptr, *filename_ptr;
 463         int res, i;
 464         int flash_command = FLASH_CMD_NONE;
 465         int err = 0;
 466         if (!capable(CAP_SYS_ADMIN))
 467                 return -EACCES;
 468
 469         cmd_ptr = kzalloc(count*2, GFP_KERNEL);
 470
 471         if (!cmd_ptr) {
 472                 err = FAIL_OUT_MEMORY;
 473                 goto out;
 474         }
 475
 476         filename_ptr = cmd_ptr + count;
 477         res = sscanf(buf, "%s %s", cmd_ptr, filename_ptr);
 478         if (res != 2) {
 479                 err = FAIL_PARAMETERS;
 480                 goto out1;
 481         }
 482
 483         for (i = 0; flash_command_table[i].code != FLASH_CMD_NONE; i++) {
 484                 if (!memcmp(flash_command_table[i].command,
 485                                  cmd_ptr, strlen(cmd_ptr))) {
 486                         flash_command = flash_command_table[i].code;
 487                         break;
 488                 }
 489         }
 490         if (flash_command == FLASH_CMD_NONE) {
 491                 err = FAIL_PARAMETERS;
 492                 goto out1;
 493         }
 494
 495         if (pm8001_ha->fw_status == FLASH_IN_PROGRESS) {
 496                 err = FLASH_IN_PROGRESS;
 497                 goto out1;
 498         }
 499         err = request_firmware(&pm8001_ha->fw_image,
 500                                filename_ptr,
 501                                pm8001_ha->dev);
 502
 503         if (err) {
 504                 PM8001_FAIL_DBG(pm8001_ha,
 505                         pm8001_printk("Failed to load firmware image file %s,"
 506                         " error %d\n", filename_ptr, err));
 507                 err = FAIL_OPEN_BIOS_FILE;
 508                 goto out1;
 509         }
 510
 511         switch (flash_command) {
 512         case FLASH_CMD_UPDATE:
 513                 pm8001_ha->fw_status = FLASH_IN_PROGRESS;
 514                 err = pm8001_update_flash(pm8001_ha);
 515                 break;
 516         case FLASH_CMD_SET_NVMD:
 517                 pm8001_ha->fw_status = FLASH_IN_PROGRESS;
 518                 err = pm8001_set_nvmd(pm8001_ha);
 519                 break;
 520         default:
 521                 pm8001_ha->fw_status = FAIL_PARAMETERS;
 522                 err = FAIL_PARAMETERS;
 523                 break;
 524         }
 525         release_firmware(pm8001_ha->fw_image);
 526 out1:
 527         kfree(cmd_ptr);
 528 out:
 529         pm8001_ha->fw_status = err;
 530
 531         if (!err)
 532                 return count;
 533         else
 534                 return -err;
 535 }
 536
 537 static ssize_t pm8001_show_update_fw(struct device *cdev,
 538                                      struct device_attribute *attr, char *buf)
 539 {
 540         int i;
 541         struct Scsi_Host *shost = class_to_shost(cdev);
 542         struct sas_ha_struct *sha = SHOST_TO_SAS_HA(shost);
 543         struct pm8001_hba_info *pm8001_ha = sha->lldd_ha;
 544
 545         for (i = 0; flash_error_table[i].err_code != 0; i++) {
 546                 if (flash_error_table[i].err_code == pm8001_ha->fw_status)
 547                         break;
 548         }
 549         if (pm8001_ha->fw_status != FLASH_IN_PROGRESS)
 550                 pm8001_ha->fw_status = FLASH_OK;
 551
 552         return snprintf(buf, PAGE_SIZE, "status=%x %s\n",
 553                         flash_error_table[i].err_code,
 554                         flash_error_table[i].reason);
 555 }
 556
 557 static DEVICE_ATTR(update_fw, S_IRUGO|S_IWUGO,
 558         pm8001_show_update_fw, pm8001_store_update_fw);
 559 struct device_attribute *pm8001_host_attrs[] = {
 560         &dev_attr_interface_rev,
 561         &dev_attr_fw_version,
 562         &dev_attr_update_fw,
 563         &dev_attr_aap_log,
 564         &dev_attr_iop_log,
 565         &dev_attr_max_out_io,
 566         &dev_attr_max_devices,
 567         &dev_attr_max_sg_list,
 568         &dev_attr_sas_spec_support,
 569         &dev_attr_logging_level,
 570         &dev_attr_host_sas_address,
 571         NULL,
 572 };
 573