[SCSI] pm8001: add SAS/SATA HBA driver
This driver supports PMC-Sierra PCIe SAS/SATA 8x6G SPC 8001 chip based
host adapters.
Signed-off-by: Jack Wang <jack_wang@usish.com>
Signed-off-by: Lindar Liu <lindar_liu@usish.com>
Signed-off-by: Tom Peng <tom_peng@usish.com>
Signed-off-by: Kevin Ao <aoqingyun@usish.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
diff --git a/drivers/scsi/pm8001/pm8001_ctl.c b/drivers/scsi/pm8001/pm8001_ctl.c
new file mode 100644
index 0000000..14b13ac
--- /dev/null
+++ b/drivers/scsi/pm8001/pm8001_ctl.c
@@ -0,0 +1,573 @@
+/*
+ * PMC-Sierra SPC 8001 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 "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;
+
+ return snprintf(buf, PAGE_SIZE, "%d\n",
+ pm8001_ha->main_cfg_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;
+
+ return snprintf(buf, PAGE_SIZE, "%02x.%02x.%02x.%02x\n",
+ (u8)(pm8001_ha->main_cfg_tbl.firmware_rev >> 24),
+ (u8)(pm8001_ha->main_cfg_tbl.firmware_rev >> 16),
+ (u8)(pm8001_ha->main_cfg_tbl.firmware_rev >> 8),
+ (u8)(pm8001_ha->main_cfg_tbl.firmware_rev));
+}
+static DEVICE_ATTR(fw_version, S_IRUGO, pm8001_ctl_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;
+
+ return snprintf(buf, PAGE_SIZE, "%d\n",
+ pm8001_ha->main_cfg_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;
+
+ return snprintf(buf, PAGE_SIZE, "%04d\n",
+ (u16)(pm8001_ha->main_cfg_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;
+
+ return snprintf(buf, PAGE_SIZE, "%04d\n",
+ pm8001_ha->main_cfg_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;
+ mode = (pm8001_ha->main_cfg_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_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);
+
+#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 = NULL;
+ u32 length = 0;
+ u32 ret = 0;
+
+ length = 1024 * 5 + sizeof(*payload) - 1;
+ ioctlbuffer = kzalloc(length, GFP_KERNEL);
+ if (!ioctlbuffer)
+ return -ENOMEM;
+ if ((pm8001_ha->fw_image->size <= 0) ||
+ (pm8001_ha->fw_image->size > 4096)) {
+ ret = FAIL_FILE_SIZE;
+ goto out;
+ }
+ 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;
+ pm8001_ha->nvmd_completion = &completion;
+ ret = PM8001_CHIP_DISP->set_nvmd_req(pm8001_ha, payload);
+ 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 = NULL;
+ u32 length = 0;
+ struct fw_control_info *fwControl;
+ u32 loopNumber, loopcount = 0;
+ u32 sizeRead = 0;
+ u32 partitionSize, partitionSizeTmp;
+ u32 ret = 0;
+ u32 partitionNumber = 0;
+ struct pm8001_fw_image_header *image_hdr;
+
+ length = 1024 * 16 + sizeof(*payload) - 1;
+ ioctlbuffer = kzalloc(length, GFP_KERNEL);
+ image_hdr = (struct pm8001_fw_image_header *)pm8001_ha->fw_image->data;
+ if (!ioctlbuffer)
+ return -ENOMEM;
+ if (pm8001_ha->fw_image->size < 28) {
+ ret = FAIL_FILE_SIZE;
+ goto out;
+ }
+
+ while (sizeRead < pm8001_ha->fw_image->size) {
+ partitionSizeTmp =
+ *(u32 *)((u8 *)&image_hdr->image_length + sizeRead);
+ partitionSize = be32_to_cpu(partitionSizeTmp);
+ loopcount = (partitionSize + HEADER_LEN)/IOCTL_BUF_SIZE;
+ if (loopcount % IOCTL_BUF_SIZE)
+ loopcount++;
+ if (loopcount == 0)
+ loopcount++;
+ 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);
+ wait_for_completion(&completion);
+ if (ret || (fwControl->retcode > FLASH_UPDATE_IN_PROGRESS)) {
+ ret = fwControl->retcode;
+ kfree(ioctlbuffer);
+ ioctlbuffer = NULL;
+ break;
+ }
+ }
+ if (ret)
+ break;
+ partitionNumber++;
+}
+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 err = 0;
+ if (!capable(CAP_SYS_ADMIN))
+ return -EACCES;
+
+ cmd_ptr = kzalloc(count*2, GFP_KERNEL);
+
+ if (!cmd_ptr) {
+ err = FAIL_OUT_MEMORY;
+ goto out;
+ }
+
+ filename_ptr = cmd_ptr + count;
+ res = sscanf(buf, "%s %s", cmd_ptr, filename_ptr);
+ if (res != 2) {
+ err = FAIL_PARAMETERS;
+ goto out1;
+ }
+
+ 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) {
+ err = FAIL_PARAMETERS;
+ goto out1;
+ }
+
+ if (pm8001_ha->fw_status == FLASH_IN_PROGRESS) {
+ err = FLASH_IN_PROGRESS;
+ goto out1;
+ }
+ err = request_firmware(&pm8001_ha->fw_image,
+ filename_ptr,
+ pm8001_ha->dev);
+
+ if (err) {
+ PM8001_FAIL_DBG(pm8001_ha,
+ pm8001_printk("Failed to load firmware image file %s,"
+ " error %d\n", filename_ptr, err));
+ err = FAIL_OPEN_BIOS_FILE;
+ goto out1;
+ }
+
+ switch (flash_command) {
+ case FLASH_CMD_UPDATE:
+ pm8001_ha->fw_status = FLASH_IN_PROGRESS;
+ err = pm8001_update_flash(pm8001_ha);
+ break;
+ case FLASH_CMD_SET_NVMD:
+ pm8001_ha->fw_status = FLASH_IN_PROGRESS;
+ err = pm8001_set_nvmd(pm8001_ha);
+ break;
+ default:
+ pm8001_ha->fw_status = FAIL_PARAMETERS;
+ err = FAIL_PARAMETERS;
+ break;
+ }
+ release_firmware(pm8001_ha->fw_image);
+out1:
+ kfree(cmd_ptr);
+out:
+ pm8001_ha->fw_status = err;
+
+ if (!err)
+ return count;
+ else
+ return -err;
+}
+
+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_IWUGO,
+ 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_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,
+ NULL,
+};
+