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kernel_samsung_a34x-permissive/drivers/scsi/pm8001/pm8001_ctl.c

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Import A346BXXU1AWB9 kernel source Android 13
2024-04-28 06:49:01 -07:00
/*
* PMC-Sierra 8001/8081/8088/8089 SAS/SATA based host adapters driver
*
* Copyright (c) 2008-2009 USI Co., Ltd.
* All rights reserved.
*
* 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,
* without modification.
* 2. Redistributions in binary form must reproduce at minimum a disclaimer
* substantially similar to the "NO WARRANTY" disclaimer below
* ("Disclaimer") and any redistribution must be conditioned upon
* including a substantially similar Disclaimer requirement for further
* binary redistribution.
* 3. Neither the names of the above-listed copyright holders nor the names
* of any contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* Alternatively, this software may be distributed under the terms of the
* GNU General Public License ("GPL") version 2 as published by the Free
* Software Foundation.
*
* NO WARRANTY
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* HOLDERS OR CONTRIBUTORS BE LIABLE FOR 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 DAMAGES.
*
*/
#include <linux/firmware.h>
#include <linux/slab.h>
#include "pm8001_sas.h"
#include "pm8001_ctl.h"
/* scsi host attributes */
/**
* pm8001_ctl_mpi_interface_rev_show - MPI interface revision number
* @cdev: pointer to embedded class device
* @buf: the buffer returned
*
* A sysfs 'read-only' shost attribute.
*/
static ssize_t pm8001_ctl_mpi_interface_rev_show(struct device *cdev,
struct device_attribute *attr, char *buf)
{
struct Scsi_Host *shost = class_to_shost(cdev);
struct sas_ha_struct *sha = SHOST_TO_SAS_HA(shost);
struct pm8001_hba_info *pm8001_ha = sha->lldd_ha;
if (pm8001_ha->chip_id == chip_8001) {
return snprintf(buf, PAGE_SIZE, "%d\n",
pm8001_ha->main_cfg_tbl.pm8001_tbl.interface_rev);
} else {
return snprintf(buf, PAGE_SIZE, "%d\n",
pm8001_ha->main_cfg_tbl.pm80xx_tbl.interface_rev);
}
}
static
DEVICE_ATTR(interface_rev, S_IRUGO, pm8001_ctl_mpi_interface_rev_show, NULL);
/**
* pm8001_ctl_fw_version_show - firmware version
* @cdev: pointer to embedded class device
* @buf: the buffer returned
*
* A sysfs 'read-only' shost attribute.
*/
static ssize_t pm8001_ctl_fw_version_show(struct device *cdev,
struct device_attribute *attr, char *buf)
{
struct Scsi_Host *shost = class_to_shost(cdev);
struct sas_ha_struct *sha = SHOST_TO_SAS_HA(shost);
struct pm8001_hba_info *pm8001_ha = sha->lldd_ha;
if (pm8001_ha->chip_id == chip_8001) {
return snprintf(buf, PAGE_SIZE, "%02x.%02x.%02x.%02x\n",
(u8)(pm8001_ha->main_cfg_tbl.pm8001_tbl.firmware_rev >> 24),
(u8)(pm8001_ha->main_cfg_tbl.pm8001_tbl.firmware_rev >> 16),
(u8)(pm8001_ha->main_cfg_tbl.pm8001_tbl.firmware_rev >> 8),
(u8)(pm8001_ha->main_cfg_tbl.pm8001_tbl.firmware_rev));
} else {
return snprintf(buf, PAGE_SIZE, "%02x.%02x.%02x.%02x\n",
(u8)(pm8001_ha->main_cfg_tbl.pm80xx_tbl.firmware_rev >> 24),
(u8)(pm8001_ha->main_cfg_tbl.pm80xx_tbl.firmware_rev >> 16),
(u8)(pm8001_ha->main_cfg_tbl.pm80xx_tbl.firmware_rev >> 8),
(u8)(pm8001_ha->main_cfg_tbl.pm80xx_tbl.firmware_rev));
}
}
static DEVICE_ATTR(fw_version, S_IRUGO, pm8001_ctl_fw_version_show, NULL);
/**
* pm8001_ctl_ila_version_show - ila version
* @cdev: pointer to embedded class device
* @buf: the buffer returned
*
* A sysfs 'read-only' shost attribute.
*/
static ssize_t pm8001_ctl_ila_version_show(struct device *cdev,
struct device_attribute *attr, char *buf)
{
struct Scsi_Host *shost = class_to_shost(cdev);
struct sas_ha_struct *sha = SHOST_TO_SAS_HA(shost);
struct pm8001_hba_info *pm8001_ha = sha->lldd_ha;
if (pm8001_ha->chip_id != chip_8001) {
return snprintf(buf, PAGE_SIZE, "%02x.%02x.%02x.%02x\n",
(u8)(pm8001_ha->main_cfg_tbl.pm80xx_tbl.ila_version >> 24),
(u8)(pm8001_ha->main_cfg_tbl.pm80xx_tbl.ila_version >> 16),
(u8)(pm8001_ha->main_cfg_tbl.pm80xx_tbl.ila_version >> 8),
(u8)(pm8001_ha->main_cfg_tbl.pm80xx_tbl.ila_version));
}
return 0;
}
static DEVICE_ATTR(ila_version, 0444, pm8001_ctl_ila_version_show, NULL);
/**
* pm8001_ctl_inactive_fw_version_show - Inacative firmware version number
* @cdev: pointer to embedded class device
* @buf: the buffer returned
*
* A sysfs 'read-only' shost attribute.
*/
static ssize_t pm8001_ctl_inactive_fw_version_show(struct device *cdev,
struct device_attribute *attr, char *buf)
{
struct Scsi_Host *shost = class_to_shost(cdev);
struct sas_ha_struct *sha = SHOST_TO_SAS_HA(shost);
struct pm8001_hba_info *pm8001_ha = sha->lldd_ha;
if (pm8001_ha->chip_id != chip_8001) {
return snprintf(buf, PAGE_SIZE, "%02x.%02x.%02x.%02x\n",
(u8)(pm8001_ha->main_cfg_tbl.pm80xx_tbl.inc_fw_version >> 24),
(u8)(pm8001_ha->main_cfg_tbl.pm80xx_tbl.inc_fw_version >> 16),
(u8)(pm8001_ha->main_cfg_tbl.pm80xx_tbl.inc_fw_version >> 8),
(u8)(pm8001_ha->main_cfg_tbl.pm80xx_tbl.inc_fw_version));
}
return 0;
}
static
DEVICE_ATTR(inc_fw_ver, 0444, pm8001_ctl_inactive_fw_version_show, NULL);
/**
* pm8001_ctl_max_out_io_show - max outstanding io supported
* @cdev: pointer to embedded class device
* @buf: the buffer returned
*
* A sysfs 'read-only' shost attribute.
*/
static ssize_t pm8001_ctl_max_out_io_show(struct device *cdev,
struct device_attribute *attr, char *buf)
{
struct Scsi_Host *shost = class_to_shost(cdev);
struct sas_ha_struct *sha = SHOST_TO_SAS_HA(shost);
struct pm8001_hba_info *pm8001_ha = sha->lldd_ha;
if (pm8001_ha->chip_id == chip_8001) {
return snprintf(buf, PAGE_SIZE, "%d\n",
pm8001_ha->main_cfg_tbl.pm8001_tbl.max_out_io);
} else {
return snprintf(buf, PAGE_SIZE, "%d\n",
pm8001_ha->main_cfg_tbl.pm80xx_tbl.max_out_io);
}
}
static DEVICE_ATTR(max_out_io, S_IRUGO, pm8001_ctl_max_out_io_show, NULL);
/**
* pm8001_ctl_max_devices_show - max devices support
* @cdev: pointer to embedded class device
* @buf: the buffer returned
*
* A sysfs 'read-only' shost attribute.
*/
static ssize_t pm8001_ctl_max_devices_show(struct device *cdev,
struct device_attribute *attr, char *buf)
{
struct Scsi_Host *shost = class_to_shost(cdev);
struct sas_ha_struct *sha = SHOST_TO_SAS_HA(shost);
struct pm8001_hba_info *pm8001_ha = sha->lldd_ha;
if (pm8001_ha->chip_id == chip_8001) {
return snprintf(buf, PAGE_SIZE, "%04d\n",
(u16)(pm8001_ha->main_cfg_tbl.pm8001_tbl.max_sgl >> 16)
);
} else {
return snprintf(buf, PAGE_SIZE, "%04d\n",
(u16)(pm8001_ha->main_cfg_tbl.pm80xx_tbl.max_sgl >> 16)
);
}
}
static DEVICE_ATTR(max_devices, S_IRUGO, pm8001_ctl_max_devices_show, NULL);
/**
* pm8001_ctl_max_sg_list_show - max sg list supported iff not 0.0 for no
* hardware limitation
* @cdev: pointer to embedded class device
* @buf: the buffer returned
*
* A sysfs 'read-only' shost attribute.
*/
static ssize_t pm8001_ctl_max_sg_list_show(struct device *cdev,
struct device_attribute *attr, char *buf)
{
struct Scsi_Host *shost = class_to_shost(cdev);
struct sas_ha_struct *sha = SHOST_TO_SAS_HA(shost);
struct pm8001_hba_info *pm8001_ha = sha->lldd_ha;
if (pm8001_ha->chip_id == chip_8001) {
return snprintf(buf, PAGE_SIZE, "%04d\n",
pm8001_ha->main_cfg_tbl.pm8001_tbl.max_sgl & 0x0000FFFF
);
} else {
return snprintf(buf, PAGE_SIZE, "%04d\n",
pm8001_ha->main_cfg_tbl.pm80xx_tbl.max_sgl & 0x0000FFFF
);
}
}
static DEVICE_ATTR(max_sg_list, S_IRUGO, pm8001_ctl_max_sg_list_show, NULL);
#define SAS_1_0 0x1
#define SAS_1_1 0x2
#define SAS_2_0 0x4
static ssize_t
show_sas_spec_support_status(unsigned int mode, char *buf)
{
ssize_t len = 0;
if (mode & SAS_1_1)
len = sprintf(buf, "%s", "SAS1.1");
if (mode & SAS_2_0)
len += sprintf(buf + len, "%s%s", len ? ", " : "", "SAS2.0");
len += sprintf(buf + len, "\n");
return len;
}
/**
* pm8001_ctl_sas_spec_support_show - sas spec supported
* @cdev: pointer to embedded class device
* @buf: the buffer returned
*
* A sysfs 'read-only' shost attribute.
*/
static ssize_t pm8001_ctl_sas_spec_support_show(struct device *cdev,
struct device_attribute *attr, char *buf)
{
unsigned int mode;
struct Scsi_Host *shost = class_to_shost(cdev);
struct sas_ha_struct *sha = SHOST_TO_SAS_HA(shost);
struct pm8001_hba_info *pm8001_ha = sha->lldd_ha;
/* fe000000 means supports SAS2.1 */
if (pm8001_ha->chip_id == chip_8001)
mode = (pm8001_ha->main_cfg_tbl.pm8001_tbl.ctrl_cap_flag &
0xfe000000)>>25;
else
/* fe000000 means supports SAS2.1 */
mode = (pm8001_ha->main_cfg_tbl.pm80xx_tbl.ctrl_cap_flag &
0xfe000000)>>25;
return show_sas_spec_support_status(mode, buf);
}
static DEVICE_ATTR(sas_spec_support, S_IRUGO,
pm8001_ctl_sas_spec_support_show, NULL);
/**
* pm8001_ctl_sas_address_show - sas address
* @cdev: pointer to embedded class device
* @buf: the buffer returned
*
* This is the controller sas address
*
* A sysfs 'read-only' shost attribute.
*/
static ssize_t pm8001_ctl_host_sas_address_show(struct device *cdev,
struct device_attribute *attr, char *buf)
{
struct Scsi_Host *shost = class_to_shost(cdev);
struct sas_ha_struct *sha = SHOST_TO_SAS_HA(shost);
struct pm8001_hba_info *pm8001_ha = sha->lldd_ha;
return snprintf(buf, PAGE_SIZE, "0x%016llx\n",
be64_to_cpu(*(__be64 *)pm8001_ha->sas_addr));
}
static DEVICE_ATTR(host_sas_address, S_IRUGO,
pm8001_ctl_host_sas_address_show, NULL);
/**
* pm8001_ctl_logging_level_show - logging level
* @cdev: pointer to embedded class device
* @buf: the buffer returned
*
* A sysfs 'read/write' shost attribute.
*/
static ssize_t pm8001_ctl_logging_level_show(struct device *cdev,
struct device_attribute *attr, char *buf)
{
struct Scsi_Host *shost = class_to_shost(cdev);
struct sas_ha_struct *sha = SHOST_TO_SAS_HA(shost);
struct pm8001_hba_info *pm8001_ha = sha->lldd_ha;
return snprintf(buf, PAGE_SIZE, "%08xh\n", pm8001_ha->logging_level);
}
static ssize_t pm8001_ctl_logging_level_store(struct device *cdev,
struct device_attribute *attr, const char *buf, size_t count)
{
struct Scsi_Host *shost = class_to_shost(cdev);
struct sas_ha_struct *sha = SHOST_TO_SAS_HA(shost);
struct pm8001_hba_info *pm8001_ha = sha->lldd_ha;
int val = 0;
if (sscanf(buf, "%x", &val) != 1)
return -EINVAL;
pm8001_ha->logging_level = val;
return strlen(buf);
}
static DEVICE_ATTR(logging_level, S_IRUGO | S_IWUSR,
pm8001_ctl_logging_level_show, pm8001_ctl_logging_level_store);
/**
* pm8001_ctl_aap_log_show - aap1 event log
* @cdev: pointer to embedded class device
* @buf: the buffer returned
*
* A sysfs 'read-only' shost attribute.
*/
static ssize_t pm8001_ctl_aap_log_show(struct device *cdev,
struct device_attribute *attr, char *buf)
{
struct Scsi_Host *shost = class_to_shost(cdev);
struct sas_ha_struct *sha = SHOST_TO_SAS_HA(shost);
struct pm8001_hba_info *pm8001_ha = sha->lldd_ha;
int i;
#define AAP1_MEMMAP(r, c) \
(*(u32 *)((u8*)pm8001_ha->memoryMap.region[AAP1].virt_ptr + (r) * 32 \
+ (c)))
char *str = buf;
int max = 2;
for (i = 0; i < max; i++) {
str += sprintf(str, "0x%08x 0x%08x 0x%08x 0x%08x 0x%08x 0x%08x"
"0x%08x 0x%08x\n",
AAP1_MEMMAP(i, 0),
AAP1_MEMMAP(i, 4),
AAP1_MEMMAP(i, 8),
AAP1_MEMMAP(i, 12),
AAP1_MEMMAP(i, 16),
AAP1_MEMMAP(i, 20),
AAP1_MEMMAP(i, 24),
AAP1_MEMMAP(i, 28));
}
return str - buf;
}
static DEVICE_ATTR(aap_log, S_IRUGO, pm8001_ctl_aap_log_show, NULL);
/**
* pm8001_ctl_ib_queue_log_show - Out bound Queue log
* @cdev:pointer to embedded class device
* @buf: the buffer returned
* A sysfs 'read-only' shost attribute.
*/
static ssize_t pm8001_ctl_ib_queue_log_show(struct device *cdev,
struct device_attribute *attr, char *buf)
{
struct Scsi_Host *shost = class_to_shost(cdev);
struct sas_ha_struct *sha = SHOST_TO_SAS_HA(shost);
struct pm8001_hba_info *pm8001_ha = sha->lldd_ha;
int offset;
char *str = buf;
int start = 0;
#define IB_MEMMAP(c) \
(*(u32 *)((u8 *)pm8001_ha-> \
memoryMap.region[IB].virt_ptr + \
pm8001_ha->evtlog_ib_offset + (c)))
for (offset = 0; offset < IB_OB_READ_TIMES; offset++) {
str += sprintf(str, "0x%08x\n", IB_MEMMAP(start));
start = start + 4;
}
pm8001_ha->evtlog_ib_offset += SYSFS_OFFSET;
if (((pm8001_ha->evtlog_ib_offset) % (PM80XX_IB_OB_QUEUE_SIZE)) == 0)
pm8001_ha->evtlog_ib_offset = 0;
return str - buf;
}
static DEVICE_ATTR(ib_log, S_IRUGO, pm8001_ctl_ib_queue_log_show, NULL);
/**
* pm8001_ctl_ob_queue_log_show - Out bound Queue log
* @cdev:pointer to embedded class device
* @buf: the buffer returned
* A sysfs 'read-only' shost attribute.
*/
static ssize_t pm8001_ctl_ob_queue_log_show(struct device *cdev,
struct device_attribute *attr, char *buf)
{
struct Scsi_Host *shost = class_to_shost(cdev);
struct sas_ha_struct *sha = SHOST_TO_SAS_HA(shost);
struct pm8001_hba_info *pm8001_ha = sha->lldd_ha;
int offset;
char *str = buf;
int start = 0;
#define OB_MEMMAP(c) \
(*(u32 *)((u8 *)pm8001_ha-> \
memoryMap.region[OB].virt_ptr + \
pm8001_ha->evtlog_ob_offset + (c)))
for (offset = 0; offset < IB_OB_READ_TIMES; offset++) {
str += sprintf(str, "0x%08x\n", OB_MEMMAP(start));
start = start + 4;
}
pm8001_ha->evtlog_ob_offset += SYSFS_OFFSET;
if (((pm8001_ha->evtlog_ob_offset) % (PM80XX_IB_OB_QUEUE_SIZE)) == 0)
pm8001_ha->evtlog_ob_offset = 0;
return str - buf;
}
static DEVICE_ATTR(ob_log, S_IRUGO, pm8001_ctl_ob_queue_log_show, NULL);
/**
* pm8001_ctl_bios_version_show - Bios version Display
* @cdev:pointer to embedded class device
* @buf:the buffer returned
* A sysfs 'read-only' shost attribute.
*/
static ssize_t pm8001_ctl_bios_version_show(struct device *cdev,
struct device_attribute *attr, char *buf)
{
struct Scsi_Host *shost = class_to_shost(cdev);
struct sas_ha_struct *sha = SHOST_TO_SAS_HA(shost);
struct pm8001_hba_info *pm8001_ha = sha->lldd_ha;
char *str = buf;
int bios_index;
DECLARE_COMPLETION_ONSTACK(completion);
struct pm8001_ioctl_payload payload;
pm8001_ha->nvmd_completion = &completion;
payload.minor_function = 7;
payload.offset = 0;
payload.length = 4096;
payload.func_specific = kzalloc(4096, GFP_KERNEL);
if (!payload.func_specific)
return -ENOMEM;
if (PM8001_CHIP_DISP->get_nvmd_req(pm8001_ha, &payload)) {
kfree(payload.func_specific);
return -ENOMEM;
}
wait_for_completion(&completion);
for (bios_index = BIOSOFFSET; bios_index < BIOS_OFFSET_LIMIT;
bios_index++)
str += sprintf(str, "%c",
*(payload.func_specific+bios_index));
kfree(payload.func_specific);
return str - buf;
}
static DEVICE_ATTR(bios_version, S_IRUGO, pm8001_ctl_bios_version_show, NULL);
/**
* pm8001_ctl_aap_log_show - IOP event log
* @cdev: pointer to embedded class device
* @buf: the buffer returned
*
* A sysfs 'read-only' shost attribute.
*/
static ssize_t pm8001_ctl_iop_log_show(struct device *cdev,
struct device_attribute *attr, char *buf)
{
struct Scsi_Host *shost = class_to_shost(cdev);
struct sas_ha_struct *sha = SHOST_TO_SAS_HA(shost);
struct pm8001_hba_info *pm8001_ha = sha->lldd_ha;
#define IOP_MEMMAP(r, c) \
(*(u32 *)((u8*)pm8001_ha->memoryMap.region[IOP].virt_ptr + (r) * 32 \
+ (c)))
int i;
char *str = buf;
int max = 2;
for (i = 0; i < max; i++) {
str += sprintf(str, "0x%08x 0x%08x 0x%08x 0x%08x 0x%08x 0x%08x"
"0x%08x 0x%08x\n",
IOP_MEMMAP(i, 0),
IOP_MEMMAP(i, 4),
IOP_MEMMAP(i, 8),
IOP_MEMMAP(i, 12),
IOP_MEMMAP(i, 16),
IOP_MEMMAP(i, 20),
IOP_MEMMAP(i, 24),
IOP_MEMMAP(i, 28));
}
return str - buf;
}
static DEVICE_ATTR(iop_log, S_IRUGO, pm8001_ctl_iop_log_show, NULL);
/**
** pm8001_ctl_fatal_log_show - fatal error logging
** @cdev:pointer to embedded class device
** @buf: the buffer returned
**
** A sysfs 'read-only' shost attribute.
**/
static ssize_t pm8001_ctl_fatal_log_show(struct device *cdev,
struct device_attribute *attr, char *buf)
{
ssize_t count;
count = pm80xx_get_fatal_dump(cdev, attr, buf);
return count;
}
static DEVICE_ATTR(fatal_log, S_IRUGO, pm8001_ctl_fatal_log_show, NULL);
/**
** pm8001_ctl_gsm_log_show - gsm dump collection
** @cdev:pointer to embedded class device
** @buf: the buffer returned
**A sysfs 'read-only' shost attribute.
**/
static ssize_t pm8001_ctl_gsm_log_show(struct device *cdev,
struct device_attribute *attr, char *buf)
{
ssize_t count;
count = pm8001_get_gsm_dump(cdev, SYSFS_OFFSET, buf);
return count;
}
static DEVICE_ATTR(gsm_log, S_IRUGO, pm8001_ctl_gsm_log_show, NULL);
#define FLASH_CMD_NONE 0x00
#define FLASH_CMD_UPDATE 0x01
#define FLASH_CMD_SET_NVMD 0x02
struct flash_command {
u8 command[8];
int code;
};
static struct flash_command flash_command_table[] =
{
{"set_nvmd", FLASH_CMD_SET_NVMD},
{"update", FLASH_CMD_UPDATE},
{"", FLASH_CMD_NONE} /* Last entry should be NULL. */
};
struct error_fw {
char *reason;
int err_code;
};
static struct error_fw flash_error_table[] =
{
{"Failed to open fw image file", FAIL_OPEN_BIOS_FILE},
{"image header mismatch", FLASH_UPDATE_HDR_ERR},
{"image offset mismatch", FLASH_UPDATE_OFFSET_ERR},
{"image CRC Error", FLASH_UPDATE_CRC_ERR},
{"image length Error.", FLASH_UPDATE_LENGTH_ERR},
{"Failed to program flash chip", FLASH_UPDATE_HW_ERR},
{"Flash chip not supported.", FLASH_UPDATE_DNLD_NOT_SUPPORTED},
{"Flash update disabled.", FLASH_UPDATE_DISABLED},
{"Flash in progress", FLASH_IN_PROGRESS},
{"Image file size Error", FAIL_FILE_SIZE},
{"Input parameter error", FAIL_PARAMETERS},
{"Out of memory", FAIL_OUT_MEMORY},
{"OK", 0} /* Last entry err_code = 0. */
};
static int pm8001_set_nvmd(struct pm8001_hba_info *pm8001_ha)
{
struct pm8001_ioctl_payload *payload;
DECLARE_COMPLETION_ONSTACK(completion);
u8 *ioctlbuffer;
u32 ret;
u32 length = 1024 * 5 + sizeof(*payload) - 1;
if (pm8001_ha->fw_image->size > 4096) {
pm8001_ha->fw_status = FAIL_FILE_SIZE;
return -EFAULT;
}
ioctlbuffer = kzalloc(length, GFP_KERNEL);
if (!ioctlbuffer) {
pm8001_ha->fw_status = FAIL_OUT_MEMORY;
return -ENOMEM;
}
payload = (struct pm8001_ioctl_payload *)ioctlbuffer;
memcpy((u8 *)&payload->func_specific, (u8 *)pm8001_ha->fw_image->data,
pm8001_ha->fw_image->size);
payload->length = pm8001_ha->fw_image->size;
payload->id = 0;
payload->minor_function = 0x1;
pm8001_ha->nvmd_completion = &completion;
ret = PM8001_CHIP_DISP->set_nvmd_req(pm8001_ha, payload);
if (ret) {
pm8001_ha->fw_status = FAIL_OUT_MEMORY;
goto out;
}
wait_for_completion(&completion);
out:
kfree(ioctlbuffer);
return ret;
}
static int pm8001_update_flash(struct pm8001_hba_info *pm8001_ha)
{
struct pm8001_ioctl_payload *payload;
DECLARE_COMPLETION_ONSTACK(completion);
u8 *ioctlbuffer;
struct fw_control_info *fwControl;
u32 partitionSize, partitionSizeTmp;
u32 loopNumber, loopcount;
struct pm8001_fw_image_header *image_hdr;
u32 sizeRead = 0;
u32 ret = 0;
u32 length = 1024 * 16 + sizeof(*payload) - 1;
if (pm8001_ha->fw_image->size < 28) {
pm8001_ha->fw_status = FAIL_FILE_SIZE;
return -EFAULT;
}
ioctlbuffer = kzalloc(length, GFP_KERNEL);
if (!ioctlbuffer) {
pm8001_ha->fw_status = FAIL_OUT_MEMORY;
return -ENOMEM;
}
image_hdr = (struct pm8001_fw_image_header *)pm8001_ha->fw_image->data;
while (sizeRead < pm8001_ha->fw_image->size) {
partitionSizeTmp =
*(u32 *)((u8 *)&image_hdr->image_length + sizeRead);
partitionSize = be32_to_cpu(partitionSizeTmp);
loopcount = DIV_ROUND_UP(partitionSize + HEADER_LEN,
IOCTL_BUF_SIZE);
for (loopNumber = 0; loopNumber < loopcount; loopNumber++) {
payload = (struct pm8001_ioctl_payload *)ioctlbuffer;
payload->length = 1024*16;
payload->id = 0;
fwControl =
(struct fw_control_info *)&payload->func_specific;
fwControl->len = IOCTL_BUF_SIZE; /* IN */
fwControl->size = partitionSize + HEADER_LEN;/* IN */
fwControl->retcode = 0;/* OUT */
fwControl->offset = loopNumber * IOCTL_BUF_SIZE;/*OUT */
/* for the last chunk of data in case file size is not even with
4k, load only the rest*/
if (((loopcount-loopNumber) == 1) &&
((partitionSize + HEADER_LEN) % IOCTL_BUF_SIZE)) {
fwControl->len =
(partitionSize + HEADER_LEN) % IOCTL_BUF_SIZE;
memcpy((u8 *)fwControl->buffer,
(u8 *)pm8001_ha->fw_image->data + sizeRead,
(partitionSize + HEADER_LEN) % IOCTL_BUF_SIZE);
sizeRead +=
(partitionSize + HEADER_LEN) % IOCTL_BUF_SIZE;
} else {
memcpy((u8 *)fwControl->buffer,
(u8 *)pm8001_ha->fw_image->data + sizeRead,
IOCTL_BUF_SIZE);
sizeRead += IOCTL_BUF_SIZE;
}
pm8001_ha->nvmd_completion = &completion;
ret = PM8001_CHIP_DISP->fw_flash_update_req(pm8001_ha, payload);
if (ret) {
pm8001_ha->fw_status = FAIL_OUT_MEMORY;
goto out;
}
wait_for_completion(&completion);
if (fwControl->retcode > FLASH_UPDATE_IN_PROGRESS) {
pm8001_ha->fw_status = fwControl->retcode;
ret = -EFAULT;
goto out;
}
}
}
out:
kfree(ioctlbuffer);
return ret;
}
static ssize_t pm8001_store_update_fw(struct device *cdev,
struct device_attribute *attr,
const char *buf, size_t count)
{
struct Scsi_Host *shost = class_to_shost(cdev);
struct sas_ha_struct *sha = SHOST_TO_SAS_HA(shost);
struct pm8001_hba_info *pm8001_ha = sha->lldd_ha;
char *cmd_ptr, *filename_ptr;
int res, i;
int flash_command = FLASH_CMD_NONE;
int ret;
if (!capable(CAP_SYS_ADMIN))
return -EACCES;
/* this test protects us from running two flash processes at once,
* so we should start with this test */
if (pm8001_ha->fw_status == FLASH_IN_PROGRESS)
return -EINPROGRESS;
pm8001_ha->fw_status = FLASH_IN_PROGRESS;
cmd_ptr = kcalloc(count, 2, GFP_KERNEL);
if (!cmd_ptr) {
pm8001_ha->fw_status = FAIL_OUT_MEMORY;
return -ENOMEM;
}
filename_ptr = cmd_ptr + count;
res = sscanf(buf, "%s %s", cmd_ptr, filename_ptr);
if (res != 2) {
pm8001_ha->fw_status = FAIL_PARAMETERS;
ret = -EINVAL;
goto out;
}
for (i = 0; flash_command_table[i].code != FLASH_CMD_NONE; i++) {
if (!memcmp(flash_command_table[i].command,
cmd_ptr, strlen(cmd_ptr))) {
flash_command = flash_command_table[i].code;
break;
}
}
if (flash_command == FLASH_CMD_NONE) {
pm8001_ha->fw_status = FAIL_PARAMETERS;
ret = -EINVAL;
goto out;
}
ret = request_firmware(&pm8001_ha->fw_image,
filename_ptr,
pm8001_ha->dev);
if (ret) {
PM8001_FAIL_DBG(pm8001_ha,
pm8001_printk(
"Failed to load firmware image file %s, error %d\n",
filename_ptr, ret));
pm8001_ha->fw_status = FAIL_OPEN_BIOS_FILE;
goto out;
}
if (FLASH_CMD_UPDATE == flash_command)
ret = pm8001_update_flash(pm8001_ha);
else
ret = pm8001_set_nvmd(pm8001_ha);
release_firmware(pm8001_ha->fw_image);
out:
kfree(cmd_ptr);
if (ret)
return ret;
pm8001_ha->fw_status = FLASH_OK;
return count;
}
static ssize_t pm8001_show_update_fw(struct device *cdev,
struct device_attribute *attr, char *buf)
{
int i;
struct Scsi_Host *shost = class_to_shost(cdev);
struct sas_ha_struct *sha = SHOST_TO_SAS_HA(shost);
struct pm8001_hba_info *pm8001_ha = sha->lldd_ha;
for (i = 0; flash_error_table[i].err_code != 0; i++) {
if (flash_error_table[i].err_code == pm8001_ha->fw_status)
break;
}
if (pm8001_ha->fw_status != FLASH_IN_PROGRESS)
pm8001_ha->fw_status = FLASH_OK;
return snprintf(buf, PAGE_SIZE, "status=%x %s\n",
flash_error_table[i].err_code,
flash_error_table[i].reason);
}
static DEVICE_ATTR(update_fw, S_IRUGO|S_IWUSR|S_IWGRP,
pm8001_show_update_fw, pm8001_store_update_fw);
struct device_attribute *pm8001_host_attrs[] = {
&dev_attr_interface_rev,
&dev_attr_fw_version,
&dev_attr_update_fw,
&dev_attr_aap_log,
&dev_attr_iop_log,
&dev_attr_fatal_log,
&dev_attr_gsm_log,
&dev_attr_max_out_io,
&dev_attr_max_devices,
&dev_attr_max_sg_list,
&dev_attr_sas_spec_support,
&dev_attr_logging_level,
&dev_attr_host_sas_address,
&dev_attr_bios_version,
&dev_attr_ib_log,
&dev_attr_ob_log,
&dev_attr_ila_version,
&dev_attr_inc_fw_ver,
NULL,
};
Reference in a new issue Copy permalink