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linux-sg2042/drivers/scsi/qla4xxx/ql4_attr.c

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/*
* QLogic iSCSI HBA Driver
* Copyright (c) 2003-2011 QLogic Corporation
*
* See LICENSE.qla4xxx for copyright and licensing details.
*/
#include "ql4_def.h"
#include "ql4_glbl.h"
#include "ql4_dbg.h"
static ssize_t
qla4_8xxx_sysfs_read_fw_dump(struct file *filep, struct kobject *kobj,
struct bin_attribute *ba, char *buf, loff_t off,
size_t count)
{
struct scsi_qla_host *ha = to_qla_host(dev_to_shost(container_of(kobj,
struct device, kobj)));
if (is_qla40XX(ha))
return -EINVAL;
if (!test_bit(AF_82XX_DUMP_READING, &ha->flags))
return 0;
return memory_read_from_buffer(buf, count, &off, ha->fw_dump,
ha->fw_dump_size);
}
static ssize_t
qla4_8xxx_sysfs_write_fw_dump(struct file *filep, struct kobject *kobj,
struct bin_attribute *ba, char *buf, loff_t off,
size_t count)
{
struct scsi_qla_host *ha = to_qla_host(dev_to_shost(container_of(kobj,
struct device, kobj)));
uint32_t dev_state;
long reading;
int ret = 0;
if (is_qla40XX(ha))
return -EINVAL;
if (off != 0)
return ret;
buf[1] = 0;
ret = kstrtol(buf, 10, &reading);
if (ret) {
ql4_printk(KERN_ERR, ha, "%s: Invalid input. Return err %d\n",
__func__, ret);
return ret;
}
switch (reading) {
case 0:
/* clear dump collection flags */
if (test_and_clear_bit(AF_82XX_DUMP_READING, &ha->flags)) {
clear_bit(AF_82XX_FW_DUMPED, &ha->flags);
/* Reload minidump template */
qla4xxx_alloc_fw_dump(ha);
DEBUG2(ql4_printk(KERN_INFO, ha,
"Firmware template reloaded\n"));
}
break;
case 1:
/* Set flag to read dump */
if (test_bit(AF_82XX_FW_DUMPED, &ha->flags) &&
!test_bit(AF_82XX_DUMP_READING, &ha->flags)) {
set_bit(AF_82XX_DUMP_READING, &ha->flags);
DEBUG2(ql4_printk(KERN_INFO, ha,
"Raw firmware dump ready for read on (%ld).\n",
ha->host_no));
}
break;
case 2:
/* Reset HBA and collect FW dump */
ha->isp_ops->idc_lock(ha);
dev_state = qla4_8xxx_rd_direct(ha, QLA8XXX_CRB_DEV_STATE);
if (dev_state == QLA8XXX_DEV_READY) {
ql4_printk(KERN_INFO, ha, "%s: Setting Need reset\n",
__func__);
qla4_8xxx_wr_direct(ha, QLA8XXX_CRB_DEV_STATE,
QLA8XXX_DEV_NEED_RESET);
if (is_qla8022(ha) ||
(is_qla8032(ha) &&
qla4_83xx_can_perform_reset(ha))) {
set_bit(AF_8XXX_RST_OWNER, &ha->flags);
set_bit(AF_FW_RECOVERY, &ha->flags);
ql4_printk(KERN_INFO, ha, "%s: Reset owner is 0x%x\n",
__func__, ha->func_num);
}
} else
ql4_printk(KERN_INFO, ha,
"%s: Reset not performed as device state is 0x%x\n",
__func__, dev_state);
ha->isp_ops->idc_unlock(ha);
break;
default:
/* do nothing */
break;
}
return count;
}
static struct bin_attribute sysfs_fw_dump_attr = {
.attr = {
.name = "fw_dump",
.mode = S_IRUSR | S_IWUSR,
},
.size = 0,
.read = qla4_8xxx_sysfs_read_fw_dump,
.write = qla4_8xxx_sysfs_write_fw_dump,
};
static struct sysfs_entry {
char *name;
struct bin_attribute *attr;
} bin_file_entries[] = {
{ "fw_dump", &sysfs_fw_dump_attr },
{ NULL },
};
void qla4_8xxx_alloc_sysfs_attr(struct scsi_qla_host *ha)
{
struct Scsi_Host *host = ha->host;
struct sysfs_entry *iter;
int ret;
for (iter = bin_file_entries; iter->name; iter++) {
ret = sysfs_create_bin_file(&host->shost_gendev.kobj,
iter->attr);
if (ret)
ql4_printk(KERN_ERR, ha,
"Unable to create sysfs %s binary attribute (%d).\n",
iter->name, ret);
}
}
void qla4_8xxx_free_sysfs_attr(struct scsi_qla_host *ha)
{
struct Scsi_Host *host = ha->host;
struct sysfs_entry *iter;
for (iter = bin_file_entries; iter->name; iter++)
sysfs_remove_bin_file(&host->shost_gendev.kobj,
iter->attr);
}
/* Scsi_Host attributes. */
static ssize_t
qla4xxx_fw_version_show(struct device *dev,
struct device_attribute *attr, char *buf)
{
struct scsi_qla_host *ha = to_qla_host(class_to_shost(dev));
if (is_qla80XX(ha))
return snprintf(buf, PAGE_SIZE, "%d.%02d.%02d (%x)\n",
ha->firmware_version[0],
ha->firmware_version[1],
ha->patch_number, ha->build_number);
else
return snprintf(buf, PAGE_SIZE, "%d.%02d.%02d.%02d\n",
ha->firmware_version[0],
ha->firmware_version[1],
ha->patch_number, ha->build_number);
}
static ssize_t
qla4xxx_serial_num_show(struct device *dev, struct device_attribute *attr,
char *buf)
{
struct scsi_qla_host *ha = to_qla_host(class_to_shost(dev));
return snprintf(buf, PAGE_SIZE, "%s\n", ha->serial_number);
}
static ssize_t
qla4xxx_iscsi_version_show(struct device *dev, struct device_attribute *attr,
char *buf)
{
struct scsi_qla_host *ha = to_qla_host(class_to_shost(dev));
return snprintf(buf, PAGE_SIZE, "%d.%02d\n", ha->iscsi_major,
ha->iscsi_minor);
}
static ssize_t
qla4xxx_optrom_version_show(struct device *dev, struct device_attribute *attr,
char *buf)
{
struct scsi_qla_host *ha = to_qla_host(class_to_shost(dev));
return snprintf(buf, PAGE_SIZE, "%d.%02d.%02d.%02d\n",
ha->bootload_major, ha->bootload_minor,
ha->bootload_patch, ha->bootload_build);
}
static ssize_t
qla4xxx_board_id_show(struct device *dev, struct device_attribute *attr,
char *buf)
{
struct scsi_qla_host *ha = to_qla_host(class_to_shost(dev));
return snprintf(buf, PAGE_SIZE, "0x%08X\n", ha->board_id);
}
static ssize_t
qla4xxx_fw_state_show(struct device *dev, struct device_attribute *attr,
char *buf)
{
struct scsi_qla_host *ha = to_qla_host(class_to_shost(dev));
qla4xxx_get_firmware_state(ha);
return snprintf(buf, PAGE_SIZE, "0x%08X%8X\n", ha->firmware_state,
ha->addl_fw_state);
}
static ssize_t
qla4xxx_phy_port_cnt_show(struct device *dev, struct device_attribute *attr,
char *buf)
{
struct scsi_qla_host *ha = to_qla_host(class_to_shost(dev));
if (is_qla40XX(ha))
return -ENOSYS;
return snprintf(buf, PAGE_SIZE, "0x%04X\n", ha->phy_port_cnt);
}
static ssize_t
qla4xxx_phy_port_num_show(struct device *dev, struct device_attribute *attr,
char *buf)
{
struct scsi_qla_host *ha = to_qla_host(class_to_shost(dev));
if (is_qla40XX(ha))
return -ENOSYS;
return snprintf(buf, PAGE_SIZE, "0x%04X\n", ha->phy_port_num);
}
static ssize_t
qla4xxx_iscsi_func_cnt_show(struct device *dev, struct device_attribute *attr,
char *buf)
{
struct scsi_qla_host *ha = to_qla_host(class_to_shost(dev));
if (is_qla40XX(ha))
return -ENOSYS;
return snprintf(buf, PAGE_SIZE, "0x%04X\n", ha->iscsi_pci_func_cnt);
}
static ssize_t
qla4xxx_hba_model_show(struct device *dev, struct device_attribute *attr,
char *buf)
{
struct scsi_qla_host *ha = to_qla_host(class_to_shost(dev));
return snprintf(buf, PAGE_SIZE, "%s\n", ha->model_name);
}
static DEVICE_ATTR(fw_version, S_IRUGO, qla4xxx_fw_version_show, NULL);
static DEVICE_ATTR(serial_num, S_IRUGO, qla4xxx_serial_num_show, NULL);
static DEVICE_ATTR(iscsi_version, S_IRUGO, qla4xxx_iscsi_version_show, NULL);
static DEVICE_ATTR(optrom_version, S_IRUGO, qla4xxx_optrom_version_show, NULL);
static DEVICE_ATTR(board_id, S_IRUGO, qla4xxx_board_id_show, NULL);
static DEVICE_ATTR(fw_state, S_IRUGO, qla4xxx_fw_state_show, NULL);
static DEVICE_ATTR(phy_port_cnt, S_IRUGO, qla4xxx_phy_port_cnt_show, NULL);
static DEVICE_ATTR(phy_port_num, S_IRUGO, qla4xxx_phy_port_num_show, NULL);
static DEVICE_ATTR(iscsi_func_cnt, S_IRUGO, qla4xxx_iscsi_func_cnt_show, NULL);
static DEVICE_ATTR(hba_model, S_IRUGO, qla4xxx_hba_model_show, NULL);
struct device_attribute *qla4xxx_host_attrs[] = {
&dev_attr_fw_version,
&dev_attr_serial_num,
&dev_attr_iscsi_version,
&dev_attr_optrom_version,
&dev_attr_board_id,
&dev_attr_fw_state,
&dev_attr_phy_port_cnt,
&dev_attr_phy_port_num,
&dev_attr_iscsi_func_cnt,
&dev_attr_hba_model,
NULL,
};
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