drivers/scsi/pm8001/pm8001_ctl.c

   1 /*
   2  * PMC-Sierra 8001/8081/8088/8089 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 <linux/slab.h>
  42 #include "pm8001_sas.h"
  43 #include "pm8001_ctl.h"
  44
  45 /* scsi host attributes */
  46
  47 /**
  48  * pm8001_ctl_mpi_interface_rev_show - MPI interface revision number
  49  * @cdev: pointer to embedded class device
  50  * @buf: the buffer returned
  51  *
  52  * A sysfs 'read-only' shost attribute.
  53  */
  54 static ssize_t pm8001_ctl_mpi_interface_rev_show(struct device *cdev,
  55         struct device_attribute *attr, char *buf)
  56 {
  57         struct Scsi_Host *shost = class_to_shost(cdev);
  58         struct sas_ha_struct *sha = SHOST_TO_SAS_HA(shost);
  59         struct pm8001_hba_info *pm8001_ha = sha->lldd_ha;
  60
  61         if (pm8001_ha->chip_id == chip_8001) {
  62                 return snprintf(buf, PAGE_SIZE, "%d\n",
  63                         pm8001_ha->main_cfg_tbl.pm8001_tbl.interface_rev);
  64         } else {
  65                 return snprintf(buf, PAGE_SIZE, "%d\n",
  66                         pm8001_ha->main_cfg_tbl.pm80xx_tbl.interface_rev);
  67         }
  68 }
  69 static
  70 DEVICE_ATTR(interface_rev, S_IRUGO, pm8001_ctl_mpi_interface_rev_show, NULL);
  71
  72 /**
  73  * pm8001_ctl_fw_version_show - firmware version
  74  * @cdev: pointer to embedded class device
  75  * @buf: the buffer returned
  76  *
  77  * A sysfs 'read-only' shost attribute.
  78  */
  79 static ssize_t pm8001_ctl_fw_version_show(struct device *cdev,
  80         struct device_attribute *attr, char *buf)
  81 {
  82         struct Scsi_Host *shost = class_to_shost(cdev);
  83         struct sas_ha_struct *sha = SHOST_TO_SAS_HA(shost);
  84         struct pm8001_hba_info *pm8001_ha = sha->lldd_ha;
  85
  86         if (pm8001_ha->chip_id == chip_8001) {
  87                 return snprintf(buf, PAGE_SIZE, "%02x.%02x.%02x.%02x\n",
  88                 (u8)(pm8001_ha->main_cfg_tbl.pm8001_tbl.firmware_rev >> 24),
  89                 (u8)(pm8001_ha->main_cfg_tbl.pm8001_tbl.firmware_rev >> 16),
  90                 (u8)(pm8001_ha->main_cfg_tbl.pm8001_tbl.firmware_rev >> 8),
  91                 (u8)(pm8001_ha->main_cfg_tbl.pm8001_tbl.firmware_rev));
  92         } else {
  93                 return snprintf(buf, PAGE_SIZE, "%02x.%02x.%02x.%02x\n",
  94                 (u8)(pm8001_ha->main_cfg_tbl.pm80xx_tbl.firmware_rev >> 24),
  95                 (u8)(pm8001_ha->main_cfg_tbl.pm80xx_tbl.firmware_rev >> 16),
  96                 (u8)(pm8001_ha->main_cfg_tbl.pm80xx_tbl.firmware_rev >> 8),
  97                 (u8)(pm8001_ha->main_cfg_tbl.pm80xx_tbl.firmware_rev));
  98         }
  99 }
 100 static DEVICE_ATTR(fw_version, S_IRUGO, pm8001_ctl_fw_version_show, NULL);
 101
 102 /**
 103  * pm8001_ctl_ila_version_show - ila version
 104  * @cdev: pointer to embedded class device
 105  * @buf: the buffer returned
 106  *
 107  * A sysfs 'read-only' shost attribute.
 108  */
 109 static ssize_t pm8001_ctl_ila_version_show(struct device *cdev,
 110         struct device_attribute *attr, char *buf)
 111 {
 112         struct Scsi_Host *shost = class_to_shost(cdev);
 113         struct sas_ha_struct *sha = SHOST_TO_SAS_HA(shost);
 114         struct pm8001_hba_info *pm8001_ha = sha->lldd_ha;
 115
 116         if (pm8001_ha->chip_id != chip_8001) {
 117                 return snprintf(buf, PAGE_SIZE, "%02x.%02x.%02x.%02x\n",
 118                 (u8)(pm8001_ha->main_cfg_tbl.pm80xx_tbl.ila_version >> 24),
 119                 (u8)(pm8001_ha->main_cfg_tbl.pm80xx_tbl.ila_version >> 16),
 120                 (u8)(pm8001_ha->main_cfg_tbl.pm80xx_tbl.ila_version >> 8),
 121                 (u8)(pm8001_ha->main_cfg_tbl.pm80xx_tbl.ila_version));
 122         }
 123         return 0;
 124 }
 125 static DEVICE_ATTR(ila_version, 0444, pm8001_ctl_ila_version_show, NULL);
 126
 127 /**
 128  * pm8001_ctl_inactive_fw_version_show - Inacative firmware version number
 129  * @cdev: pointer to embedded class device
 130  * @buf: the buffer returned
 131  *
 132  * A sysfs 'read-only' shost attribute.
 133  */
 134 static ssize_t pm8001_ctl_inactive_fw_version_show(struct device *cdev,
 135         struct device_attribute *attr, char *buf)
 136 {
 137         struct Scsi_Host *shost = class_to_shost(cdev);
 138         struct sas_ha_struct *sha = SHOST_TO_SAS_HA(shost);
 139         struct pm8001_hba_info *pm8001_ha = sha->lldd_ha;
 140
 141         if (pm8001_ha->chip_id != chip_8001) {
 142                 return snprintf(buf, PAGE_SIZE, "%02x.%02x.%02x.%02x\n",
 143                 (u8)(pm8001_ha->main_cfg_tbl.pm80xx_tbl.inc_fw_version >> 24),
 144                 (u8)(pm8001_ha->main_cfg_tbl.pm80xx_tbl.inc_fw_version >> 16),
 145                 (u8)(pm8001_ha->main_cfg_tbl.pm80xx_tbl.inc_fw_version >> 8),
 146                 (u8)(pm8001_ha->main_cfg_tbl.pm80xx_tbl.inc_fw_version));
 147         }
 148         return 0;
 149 }
 150 static
 151 DEVICE_ATTR(inc_fw_ver, 0444, pm8001_ctl_inactive_fw_version_show, NULL);
 152
 153 /**
 154  * pm8001_ctl_max_out_io_show - max outstanding io supported
 155  * @cdev: pointer to embedded class device
 156  * @buf: the buffer returned
 157  *
 158  * A sysfs 'read-only' shost attribute.
 159  */
 160 static ssize_t pm8001_ctl_max_out_io_show(struct device *cdev,
 161         struct device_attribute *attr, char *buf)
 162 {
 163         struct Scsi_Host *shost = class_to_shost(cdev);
 164         struct sas_ha_struct *sha = SHOST_TO_SAS_HA(shost);
 165         struct pm8001_hba_info *pm8001_ha = sha->lldd_ha;
 166
 167         if (pm8001_ha->chip_id == chip_8001) {
 168                 return snprintf(buf, PAGE_SIZE, "%d\n",
 169                         pm8001_ha->main_cfg_tbl.pm8001_tbl.max_out_io);
 170         } else {
 171                 return snprintf(buf, PAGE_SIZE, "%d\n",
 172                         pm8001_ha->main_cfg_tbl.pm80xx_tbl.max_out_io);
 173         }
 174 }
 175 static DEVICE_ATTR(max_out_io, S_IRUGO, pm8001_ctl_max_out_io_show, NULL);
 176 /**
 177  * pm8001_ctl_max_devices_show - max devices support
 178  * @cdev: pointer to embedded class device
 179  * @buf: the buffer returned
 180  *
 181  * A sysfs 'read-only' shost attribute.
 182  */
 183 static ssize_t pm8001_ctl_max_devices_show(struct device *cdev,
 184         struct device_attribute *attr, char *buf)
 185 {
 186         struct Scsi_Host *shost = class_to_shost(cdev);
 187         struct sas_ha_struct *sha = SHOST_TO_SAS_HA(shost);
 188         struct pm8001_hba_info *pm8001_ha = sha->lldd_ha;
 189
 190         if (pm8001_ha->chip_id == chip_8001) {
 191                 return snprintf(buf, PAGE_SIZE, "%04d\n",
 192                         (u16)(pm8001_ha->main_cfg_tbl.pm8001_tbl.max_sgl >> 16)
 193                         );
 194         } else {
 195                 return snprintf(buf, PAGE_SIZE, "%04d\n",
 196                         (u16)(pm8001_ha->main_cfg_tbl.pm80xx_tbl.max_sgl >> 16)
 197                         );
 198         }
 199 }
 200 static DEVICE_ATTR(max_devices, S_IRUGO, pm8001_ctl_max_devices_show, NULL);
 201 /**
 202  * pm8001_ctl_max_sg_list_show - max sg list supported iff not 0.0 for no
 203  * hardware limitation
 204  * @cdev: pointer to embedded class device
 205  * @buf: the buffer returned
 206  *
 207  * A sysfs 'read-only' shost attribute.
 208  */
 209 static ssize_t pm8001_ctl_max_sg_list_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         if (pm8001_ha->chip_id == chip_8001) {
 217                 return snprintf(buf, PAGE_SIZE, "%04d\n",
 218                         pm8001_ha->main_cfg_tbl.pm8001_tbl.max_sgl & 0x0000FFFF
 219                         );
 220         } else {
 221                 return snprintf(buf, PAGE_SIZE, "%04d\n",
 222                         pm8001_ha->main_cfg_tbl.pm80xx_tbl.max_sgl & 0x0000FFFF
 223                         );
 224         }
 225 }
 226 static DEVICE_ATTR(max_sg_list, S_IRUGO, pm8001_ctl_max_sg_list_show, NULL);
 227
 228 #define SAS_1_0 0x1
 229 #define SAS_1_1 0x2
 230 #define SAS_2_0 0x4
 231
 232 static ssize_t
 233 show_sas_spec_support_status(unsigned int mode, char *buf)
 234 {
 235         ssize_t len = 0;
 236
 237         if (mode & SAS_1_1)
 238                 len = sprintf(buf, "%s", "SAS1.1");
 239         if (mode & SAS_2_0)
 240                 len += sprintf(buf + len, "%s%s", len ? ", " : "", "SAS2.0");
 241         len += sprintf(buf + len, "\n");
 242
 243         return len;
 244 }
 245
 246 /**
 247  * pm8001_ctl_sas_spec_support_show - sas spec supported
 248  * @cdev: pointer to embedded class device
 249  * @buf: the buffer returned
 250  *
 251  * A sysfs 'read-only' shost attribute.
 252  */
 253 static ssize_t pm8001_ctl_sas_spec_support_show(struct device *cdev,
 254         struct device_attribute *attr, char *buf)
 255 {
 256         unsigned int mode;
 257         struct Scsi_Host *shost = class_to_shost(cdev);
 258         struct sas_ha_struct *sha = SHOST_TO_SAS_HA(shost);
 259         struct pm8001_hba_info *pm8001_ha = sha->lldd_ha;
 260         /* fe000000 means supports SAS2.1 */
 261         if (pm8001_ha->chip_id == chip_8001)
 262                 mode = (pm8001_ha->main_cfg_tbl.pm8001_tbl.ctrl_cap_flag &
 263                                                         0xfe000000)>>25;
 264         else
 265                 /* fe000000 means supports SAS2.1 */
 266                 mode = (pm8001_ha->main_cfg_tbl.pm80xx_tbl.ctrl_cap_flag &
 267                                                         0xfe000000)>>25;
 268         return show_sas_spec_support_status(mode, buf);
 269 }
 270 static DEVICE_ATTR(sas_spec_support, S_IRUGO,
 271                    pm8001_ctl_sas_spec_support_show, NULL);
 272
 273 /**
 274  * pm8001_ctl_sas_address_show - sas address
 275  * @cdev: pointer to embedded class device
 276  * @buf: the buffer returned
 277  *
 278  * This is the controller sas address
 279  *
 280  * A sysfs 'read-only' shost attribute.
 281  */
 282 static ssize_t pm8001_ctl_host_sas_address_show(struct device *cdev,
 283         struct device_attribute *attr, char *buf)
 284 {
 285         struct Scsi_Host *shost = class_to_shost(cdev);
 286         struct sas_ha_struct *sha = SHOST_TO_SAS_HA(shost);
 287         struct pm8001_hba_info *pm8001_ha = sha->lldd_ha;
 288         return snprintf(buf, PAGE_SIZE, "0x%016llx\n",
 289                         be64_to_cpu(*(__be64 *)pm8001_ha->sas_addr));
 290 }
 291 static DEVICE_ATTR(host_sas_address, S_IRUGO,
 292                    pm8001_ctl_host_sas_address_show, NULL);
 293
 294 /**
 295  * pm8001_ctl_logging_level_show - logging level
 296  * @cdev: pointer to embedded class device
 297  * @buf: the buffer returned
 298  *
 299  * A sysfs 'read/write' shost attribute.
 300  */
 301 static ssize_t pm8001_ctl_logging_level_show(struct device *cdev,
 302         struct device_attribute *attr, char *buf)
 303 {
 304         struct Scsi_Host *shost = class_to_shost(cdev);
 305         struct sas_ha_struct *sha = SHOST_TO_SAS_HA(shost);
 306         struct pm8001_hba_info *pm8001_ha = sha->lldd_ha;
 307
 308         return snprintf(buf, PAGE_SIZE, "%08xh\n", pm8001_ha->logging_level);
 309 }
 310 static ssize_t pm8001_ctl_logging_level_store(struct device *cdev,
 311         struct device_attribute *attr, const char *buf, size_t count)
 312 {
 313         struct Scsi_Host *shost = class_to_shost(cdev);
 314         struct sas_ha_struct *sha = SHOST_TO_SAS_HA(shost);
 315         struct pm8001_hba_info *pm8001_ha = sha->lldd_ha;
 316         int val = 0;
 317
 318         if (sscanf(buf, "%x", &val) != 1)
 319                 return -EINVAL;
 320
 321         pm8001_ha->logging_level = val;
 322         return strlen(buf);
 323 }
 324
 325 static DEVICE_ATTR(logging_level, S_IRUGO | S_IWUSR,
 326         pm8001_ctl_logging_level_show, pm8001_ctl_logging_level_store);
 327 /**
 328  * pm8001_ctl_aap_log_show - aap1 event log
 329  * @cdev: pointer to embedded class device
 330  * @buf: the buffer returned
 331  *
 332  * A sysfs 'read-only' shost attribute.
 333  */
 334 static ssize_t pm8001_ctl_aap_log_show(struct device *cdev,
 335         struct device_attribute *attr, char *buf)
 336 {
 337         struct Scsi_Host *shost = class_to_shost(cdev);
 338         struct sas_ha_struct *sha = SHOST_TO_SAS_HA(shost);
 339         struct pm8001_hba_info *pm8001_ha = sha->lldd_ha;
 340         int i;
 341 #define AAP1_MEMMAP(r, c) \
 342         (*(u32 *)((u8*)pm8001_ha->memoryMap.region[AAP1].virt_ptr + (r) * 32 \
 343         + (c)))
 344
 345         char *str = buf;
 346         int max = 2;
 347         for (i = 0; i < max; i++) {
 348                 str += sprintf(str, "0x%08x 0x%08x 0x%08x 0x%08x 0x%08x 0x%08x"
 349                                "0x%08x 0x%08x\n",
 350                                AAP1_MEMMAP(i, 0),
 351                                AAP1_MEMMAP(i, 4),
 352                                AAP1_MEMMAP(i, 8),
 353                                AAP1_MEMMAP(i, 12),
 354                                AAP1_MEMMAP(i, 16),
 355                                AAP1_MEMMAP(i, 20),
 356                                AAP1_MEMMAP(i, 24),
 357                                AAP1_MEMMAP(i, 28));
 358         }
 359
 360         return str - buf;
 361 }
 362 static DEVICE_ATTR(aap_log, S_IRUGO, pm8001_ctl_aap_log_show, NULL);
 363 /**
 364  * pm8001_ctl_ib_queue_log_show - Out bound Queue log
 365  * @cdev:pointer to embedded class device
 366  * @buf: the buffer returned
 367  * A sysfs 'read-only' shost attribute.
 368  */
 369 static ssize_t pm8001_ctl_ib_queue_log_show(struct device *cdev,
 370         struct device_attribute *attr, char *buf)
 371 {
 372         struct Scsi_Host *shost = class_to_shost(cdev);
 373         struct sas_ha_struct *sha = SHOST_TO_SAS_HA(shost);
 374         struct pm8001_hba_info *pm8001_ha = sha->lldd_ha;
 375         int offset;
 376         char *str = buf;
 377         int start = 0;
 378 #define IB_MEMMAP(c)    \
 379                 (*(u32 *)((u8 *)pm8001_ha->     \
 380                 memoryMap.region[IB].virt_ptr + \
 381                 pm8001_ha->evtlog_ib_offset + (c)))
 382
 383         for (offset = 0; offset < IB_OB_READ_TIMES; offset++) {
 384                 str += sprintf(str, "0x%08x\n", IB_MEMMAP(start));
 385                 start = start + 4;
 386         }
 387         pm8001_ha->evtlog_ib_offset += SYSFS_OFFSET;
 388         if (((pm8001_ha->evtlog_ib_offset) % (PM80XX_IB_OB_QUEUE_SIZE)) == 0)
 389                 pm8001_ha->evtlog_ib_offset = 0;
 390
 391         return str - buf;
 392 }
 393
 394 static DEVICE_ATTR(ib_log, S_IRUGO, pm8001_ctl_ib_queue_log_show, NULL);
 395 /**
 396  * pm8001_ctl_ob_queue_log_show - Out bound Queue log
 397  * @cdev:pointer to embedded class device
 398  * @buf: the buffer returned
 399  * A sysfs 'read-only' shost attribute.
 400  */
 401
 402 static ssize_t pm8001_ctl_ob_queue_log_show(struct device *cdev,
 403         struct device_attribute *attr, char *buf)
 404 {
 405         struct Scsi_Host *shost = class_to_shost(cdev);
 406         struct sas_ha_struct *sha = SHOST_TO_SAS_HA(shost);
 407         struct pm8001_hba_info *pm8001_ha = sha->lldd_ha;
 408         int offset;
 409         char *str = buf;
 410         int start = 0;
 411 #define OB_MEMMAP(c)    \
 412                 (*(u32 *)((u8 *)pm8001_ha->     \
 413                 memoryMap.region[OB].virt_ptr + \
 414                 pm8001_ha->evtlog_ob_offset + (c)))
 415
 416         for (offset = 0; offset < IB_OB_READ_TIMES; offset++) {
 417                 str += sprintf(str, "0x%08x\n", OB_MEMMAP(start));
 418                 start = start + 4;
 419         }
 420         pm8001_ha->evtlog_ob_offset += SYSFS_OFFSET;
 421         if (((pm8001_ha->evtlog_ob_offset) % (PM80XX_IB_OB_QUEUE_SIZE)) == 0)
 422                 pm8001_ha->evtlog_ob_offset = 0;
 423
 424         return str - buf;
 425 }
 426 static DEVICE_ATTR(ob_log, S_IRUGO, pm8001_ctl_ob_queue_log_show, NULL);
 427 /**
 428  * pm8001_ctl_bios_version_show - Bios version Display
 429  * @cdev:pointer to embedded class device
 430  * @buf:the buffer returned
 431  * A sysfs 'read-only' shost attribute.
 432  */
 433 static ssize_t pm8001_ctl_bios_version_show(struct device *cdev,
 434         struct device_attribute *attr, char *buf)
 435 {
 436         struct Scsi_Host *shost = class_to_shost(cdev);
 437         struct sas_ha_struct *sha = SHOST_TO_SAS_HA(shost);
 438         struct pm8001_hba_info *pm8001_ha = sha->lldd_ha;
 439         char *str = buf;
 440         int bios_index;
 441         DECLARE_COMPLETION_ONSTACK(completion);
 442         struct pm8001_ioctl_payload payload;
 443
 444         pm8001_ha->nvmd_completion = &completion;
 445         payload.minor_function = 7;
 446         payload.offset = 0;
 447         payload.length = 4096;
 448         payload.func_specific = kzalloc(4096, GFP_KERNEL);
 449         if (!payload.func_specific)
 450                 return -ENOMEM;
 451         if (PM8001_CHIP_DISP->get_nvmd_req(pm8001_ha, &payload)) {
 452                 kfree(payload.func_specific);
 453                 return -ENOMEM;
 454         }
 455         wait_for_completion(&completion);
 456         for (bios_index = BIOSOFFSET; bios_index < BIOS_OFFSET_LIMIT;
 457                 bios_index++)
 458                 str += sprintf(str, "%c",
 459                         *(payload.func_specific+bios_index));
 460         kfree(payload.func_specific);
 461         return str - buf;
 462 }
 463 static DEVICE_ATTR(bios_version, S_IRUGO, pm8001_ctl_bios_version_show, NULL);
 464 /**
 465  * pm8001_ctl_aap_log_show - IOP event log
 466  * @cdev: pointer to embedded class device
 467  * @buf: the buffer returned
 468  *
 469  * A sysfs 'read-only' shost attribute.
 470  */
 471 static ssize_t pm8001_ctl_iop_log_show(struct device *cdev,
 472         struct device_attribute *attr, char *buf)
 473 {
 474         struct Scsi_Host *shost = class_to_shost(cdev);
 475         struct sas_ha_struct *sha = SHOST_TO_SAS_HA(shost);
 476         struct pm8001_hba_info *pm8001_ha = sha->lldd_ha;
 477 #define IOP_MEMMAP(r, c) \
 478         (*(u32 *)((u8*)pm8001_ha->memoryMap.region[IOP].virt_ptr + (r) * 32 \
 479         + (c)))
 480         int i;
 481         char *str = buf;
 482         int max = 2;
 483         for (i = 0; i < max; i++) {
 484                 str += sprintf(str, "0x%08x 0x%08x 0x%08x 0x%08x 0x%08x 0x%08x"
 485                                "0x%08x 0x%08x\n",
 486                                IOP_MEMMAP(i, 0),
 487                                IOP_MEMMAP(i, 4),
 488                                IOP_MEMMAP(i, 8),
 489                                IOP_MEMMAP(i, 12),
 490                                IOP_MEMMAP(i, 16),
 491                                IOP_MEMMAP(i, 20),
 492                                IOP_MEMMAP(i, 24),
 493                                IOP_MEMMAP(i, 28));
 494         }
 495
 496         return str - buf;
 497 }
 498 static DEVICE_ATTR(iop_log, S_IRUGO, pm8001_ctl_iop_log_show, NULL);
 499
 500 /**
 501  ** pm8001_ctl_fatal_log_show - fatal error logging
 502  ** @cdev:pointer to embedded class device
 503  ** @buf: the buffer returned
 504  **
 505  ** A sysfs 'read-only' shost attribute.
 506  **/
 507
 508 static ssize_t pm8001_ctl_fatal_log_show(struct device *cdev,
 509         struct device_attribute *attr, char *buf)
 510 {
 511         ssize_t count;
 512
 513         count = pm80xx_get_fatal_dump(cdev, attr, buf);
 514         return count;
 515 }
 516
 517 static DEVICE_ATTR(fatal_log, S_IRUGO, pm8001_ctl_fatal_log_show, NULL);
 518
 519
 520 /**
 521  ** pm8001_ctl_gsm_log_show - gsm dump collection
 522  ** @cdev:pointer to embedded class device
 523  ** @buf: the buffer returned
 524  **A sysfs 'read-only' shost attribute.
 525  **/
 526 static ssize_t pm8001_ctl_gsm_log_show(struct device *cdev,
 527         struct device_attribute *attr, char *buf)
 528 {
 529         ssize_t count;
 530
 531         count = pm8001_get_gsm_dump(cdev, SYSFS_OFFSET, buf);
 532         return count;
 533 }
 534
 535 static DEVICE_ATTR(gsm_log, S_IRUGO, pm8001_ctl_gsm_log_show, NULL);
 536
 537 #define FLASH_CMD_NONE      0x00
 538 #define FLASH_CMD_UPDATE    0x01
 539 #define FLASH_CMD_SET_NVMD    0x02
 540
 541 struct flash_command {
 542      u8      command[8];
 543      int     code;
 544 };
 545
 546 static struct flash_command flash_command_table[] =
 547 {
 548      {"set_nvmd",    FLASH_CMD_SET_NVMD},
 549      {"update",      FLASH_CMD_UPDATE},
 550      {"",            FLASH_CMD_NONE} /* Last entry should be NULL. */
 551 };
 552
 553 struct error_fw {
 554      char    *reason;
 555      int     err_code;
 556 };
 557
 558 static struct error_fw flash_error_table[] =
 559 {
 560      {"Failed to open fw image file",   FAIL_OPEN_BIOS_FILE},
 561      {"image header mismatch",          FLASH_UPDATE_HDR_ERR},
 562      {"image offset mismatch",          FLASH_UPDATE_OFFSET_ERR},
 563      {"image CRC Error",                FLASH_UPDATE_CRC_ERR},
 564      {"image length Error.",            FLASH_UPDATE_LENGTH_ERR},
 565      {"Failed to program flash chip",   FLASH_UPDATE_HW_ERR},
 566      {"Flash chip not supported.",      FLASH_UPDATE_DNLD_NOT_SUPPORTED},
 567      {"Flash update disabled.",         FLASH_UPDATE_DISABLED},
 568      {"Flash in progress",              FLASH_IN_PROGRESS},
 569      {"Image file size Error",          FAIL_FILE_SIZE},
 570      {"Input parameter error",          FAIL_PARAMETERS},
 571      {"Out of memory",                  FAIL_OUT_MEMORY},
 572      {"OK", 0}  /* Last entry err_code = 0. */
 573 };
 574
 575 static int pm8001_set_nvmd(struct pm8001_hba_info *pm8001_ha)
 576 {
 577         struct pm8001_ioctl_payload     *payload;
 578         DECLARE_COMPLETION_ONSTACK(completion);
 579         u8              *ioctlbuffer;
 580         u32             ret;
 581         u32             length = 1024 * 5 + sizeof(*payload) - 1;
 582
 583         if (pm8001_ha->fw_image->size > 4096) {
 584                 pm8001_ha->fw_status = FAIL_FILE_SIZE;
 585                 return -EFAULT;
 586         }
 587
 588         ioctlbuffer = kzalloc(length, GFP_KERNEL);
 589         if (!ioctlbuffer) {
 590                 pm8001_ha->fw_status = FAIL_OUT_MEMORY;
 591                 return -ENOMEM;
 592         }
 593         payload = (struct pm8001_ioctl_payload *)ioctlbuffer;
 594         memcpy((u8 *)&payload->func_specific, (u8 *)pm8001_ha->fw_image->data,
 595                                 pm8001_ha->fw_image->size);
 596         payload->length = pm8001_ha->fw_image->size;
 597         payload->id = 0;
 598         payload->minor_function = 0x1;
 599         pm8001_ha->nvmd_completion = &completion;
 600         ret = PM8001_CHIP_DISP->set_nvmd_req(pm8001_ha, payload);
 601         if (ret) {
 602                 pm8001_ha->fw_status = FAIL_OUT_MEMORY;
 603                 goto out;
 604         }
 605         wait_for_completion(&completion);
 606 out:
 607         kfree(ioctlbuffer);
 608         return ret;
 609 }
 610
 611 static int pm8001_update_flash(struct pm8001_hba_info *pm8001_ha)
 612 {
 613         struct pm8001_ioctl_payload     *payload;
 614         DECLARE_COMPLETION_ONSTACK(completion);
 615         u8              *ioctlbuffer;
 616         struct fw_control_info  *fwControl;
 617         u32             partitionSize, partitionSizeTmp;
 618         u32             loopNumber, loopcount;
 619         struct pm8001_fw_image_header *image_hdr;
 620         u32             sizeRead = 0;
 621         u32             ret = 0;
 622         u32             length = 1024 * 16 + sizeof(*payload) - 1;
 623
 624         if (pm8001_ha->fw_image->size < 28) {
 625                 pm8001_ha->fw_status = FAIL_FILE_SIZE;
 626                 return -EFAULT;
 627         }
 628         ioctlbuffer = kzalloc(length, GFP_KERNEL);
 629         if (!ioctlbuffer) {
 630                 pm8001_ha->fw_status = FAIL_OUT_MEMORY;
 631                 return -ENOMEM;
 632         }
 633         image_hdr = (struct pm8001_fw_image_header *)pm8001_ha->fw_image->data;
 634         while (sizeRead < pm8001_ha->fw_image->size) {
 635                 partitionSizeTmp =
 636                         *(u32 *)((u8 *)&image_hdr->image_length + sizeRead);
 637                 partitionSize = be32_to_cpu(partitionSizeTmp);
 638                 loopcount = DIV_ROUND_UP(partitionSize + HEADER_LEN,
 639                                         IOCTL_BUF_SIZE);
 640                 for (loopNumber = 0; loopNumber < loopcount; loopNumber++) {
 641                         payload = (struct pm8001_ioctl_payload *)ioctlbuffer;
 642                         payload->length = 1024*16;
 643                         payload->id = 0;
 644                         fwControl =
 645                               (struct fw_control_info *)&payload->func_specific;
 646                         fwControl->len = IOCTL_BUF_SIZE;   /* IN */
 647                         fwControl->size = partitionSize + HEADER_LEN;/* IN */
 648                         fwControl->retcode = 0;/* OUT */
 649                         fwControl->offset = loopNumber * IOCTL_BUF_SIZE;/*OUT */
 650
 651                 /* for the last chunk of data in case file size is not even with
 652                 4k, load only the rest*/
 653                 if (((loopcount-loopNumber) == 1) &&
 654                         ((partitionSize + HEADER_LEN) % IOCTL_BUF_SIZE)) {
 655                         fwControl->len =
 656                                 (partitionSize + HEADER_LEN) % IOCTL_BUF_SIZE;
 657                         memcpy((u8 *)fwControl->buffer,
 658                                 (u8 *)pm8001_ha->fw_image->data + sizeRead,
 659                                 (partitionSize + HEADER_LEN) % IOCTL_BUF_SIZE);
 660                         sizeRead +=
 661                                 (partitionSize + HEADER_LEN) % IOCTL_BUF_SIZE;
 662                 } else {
 663                         memcpy((u8 *)fwControl->buffer,
 664                                 (u8 *)pm8001_ha->fw_image->data + sizeRead,
 665                                 IOCTL_BUF_SIZE);
 666                         sizeRead += IOCTL_BUF_SIZE;
 667                 }
 668
 669                 pm8001_ha->nvmd_completion = &completion;
 670                 ret = PM8001_CHIP_DISP->fw_flash_update_req(pm8001_ha, payload);
 671                 if (ret) {
 672                         pm8001_ha->fw_status = FAIL_OUT_MEMORY;
 673                         goto out;
 674                 }
 675                 wait_for_completion(&completion);
 676                 if (fwControl->retcode > FLASH_UPDATE_IN_PROGRESS) {
 677                         pm8001_ha->fw_status = fwControl->retcode;
 678                         ret = -EFAULT;
 679                         goto out;
 680                 }
 681                 }
 682         }
 683 out:
 684         kfree(ioctlbuffer);
 685         return ret;
 686 }
 687 static ssize_t pm8001_store_update_fw(struct device *cdev,
 688                                       struct device_attribute *attr,
 689                                       const char *buf, size_t count)
 690 {
 691         struct Scsi_Host *shost = class_to_shost(cdev);
 692         struct sas_ha_struct *sha = SHOST_TO_SAS_HA(shost);
 693         struct pm8001_hba_info *pm8001_ha = sha->lldd_ha;
 694         char *cmd_ptr, *filename_ptr;
 695         int res, i;
 696         int flash_command = FLASH_CMD_NONE;
 697         int ret;
 698
 699         if (!capable(CAP_SYS_ADMIN))
 700                 return -EACCES;
 701
 702         /* this test protects us from running two flash processes at once,
 703          * so we should start with this test */
 704         if (pm8001_ha->fw_status == FLASH_IN_PROGRESS)
 705                 return -EINPROGRESS;
 706         pm8001_ha->fw_status = FLASH_IN_PROGRESS;
 707
 708         cmd_ptr = kcalloc(count, 2, GFP_KERNEL);
 709         if (!cmd_ptr) {
 710                 pm8001_ha->fw_status = FAIL_OUT_MEMORY;
 711                 return -ENOMEM;
 712         }
 713
 714         filename_ptr = cmd_ptr + count;
 715         res = sscanf(buf, "%s %s", cmd_ptr, filename_ptr);
 716         if (res != 2) {
 717                 pm8001_ha->fw_status = FAIL_PARAMETERS;
 718                 ret = -EINVAL;
 719                 goto out;
 720         }
 721
 722         for (i = 0; flash_command_table[i].code != FLASH_CMD_NONE; i++) {
 723                 if (!memcmp(flash_command_table[i].command,
 724                                  cmd_ptr, strlen(cmd_ptr))) {
 725                         flash_command = flash_command_table[i].code;
 726                         break;
 727                 }
 728         }
 729         if (flash_command == FLASH_CMD_NONE) {
 730                 pm8001_ha->fw_status = FAIL_PARAMETERS;
 731                 ret = -EINVAL;
 732                 goto out;
 733         }
 734
 735         ret = request_firmware(&pm8001_ha->fw_image,
 736                                filename_ptr,
 737                                pm8001_ha->dev);
 738
 739         if (ret) {
 740                 PM8001_FAIL_DBG(pm8001_ha,
 741                         pm8001_printk(
 742                         "Failed to load firmware image file %s, error %d\n",
 743                         filename_ptr, ret));
 744                 pm8001_ha->fw_status = FAIL_OPEN_BIOS_FILE;
 745                 goto out;
 746         }
 747
 748         if (FLASH_CMD_UPDATE == flash_command)
 749                 ret = pm8001_update_flash(pm8001_ha);
 750         else
 751                 ret = pm8001_set_nvmd(pm8001_ha);
 752
 753         release_firmware(pm8001_ha->fw_image);
 754 out:
 755         kfree(cmd_ptr);
 756
 757         if (ret)
 758                 return ret;
 759
 760         pm8001_ha->fw_status = FLASH_OK;
 761         return count;
 762 }
 763
 764 static ssize_t pm8001_show_update_fw(struct device *cdev,
 765                                      struct device_attribute *attr, char *buf)
 766 {
 767         int i;
 768         struct Scsi_Host *shost = class_to_shost(cdev);
 769         struct sas_ha_struct *sha = SHOST_TO_SAS_HA(shost);
 770         struct pm8001_hba_info *pm8001_ha = sha->lldd_ha;
 771
 772         for (i = 0; flash_error_table[i].err_code != 0; i++) {
 773                 if (flash_error_table[i].err_code == pm8001_ha->fw_status)
 774                         break;
 775         }
 776         if (pm8001_ha->fw_status != FLASH_IN_PROGRESS)
 777                 pm8001_ha->fw_status = FLASH_OK;
 778
 779         return snprintf(buf, PAGE_SIZE, "status=%x %s\n",
 780                         flash_error_table[i].err_code,
 781                         flash_error_table[i].reason);
 782 }
 783
 784 static DEVICE_ATTR(update_fw, S_IRUGO|S_IWUSR|S_IWGRP,
 785         pm8001_show_update_fw, pm8001_store_update_fw);
 786 struct device_attribute *pm8001_host_attrs[] = {
 787         &dev_attr_interface_rev,
 788         &dev_attr_fw_version,
 789         &dev_attr_update_fw,
 790         &dev_attr_aap_log,
 791         &dev_attr_iop_log,
 792         &dev_attr_fatal_log,
 793         &dev_attr_gsm_log,
 794         &dev_attr_max_out_io,
 795         &dev_attr_max_devices,
 796         &dev_attr_max_sg_list,
 797         &dev_attr_sas_spec_support,
 798         &dev_attr_logging_level,
 799         &dev_attr_host_sas_address,
 800         &dev_attr_bios_version,
 801         &dev_attr_ib_log,
 802         &dev_attr_ob_log,
 803         &dev_attr_ila_version,
 804         &dev_attr_inc_fw_ver,
 805         NULL,
 806 };
 807