diff options
| author | andrew.vasquez@qlogic.com <andrew.vasquez@qlogic.com> | 2006-03-09 14:27:34 -0800 |
|---|---|---|
| committer | James Bottomley <jejb@mulgrave.il.steeleye.com> | 2006-03-12 09:39:55 -0600 |
| commit | 6f6417905cf272337a9762e1f92a1fffa651fcd3 (patch) | |
| tree | 39164863fb9325279c708e9dd08b1d2e76db393c /drivers/scsi/qla2xxx/qla_attr.c | |
| parent | fdbc6833c53a1c2ec2b122cd53e69e6136dcc774 (diff) | |
[SCSI] qla2xxx: Add VPD sysfs attribute.
Signed-off-by: Andrew Vasquez <andrew.vasquez@qlogic.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
Diffstat (limited to 'drivers/scsi/qla2xxx/qla_attr.c')
| -rw-r--r-- | drivers/scsi/qla2xxx/qla_attr.c | 57 |
1 files changed, 57 insertions, 0 deletions
diff --git a/drivers/scsi/qla2xxx/qla_attr.c b/drivers/scsi/qla2xxx/qla_attr.c index 2b9e329a240c..488b3d16427b 100644 --- a/drivers/scsi/qla2xxx/qla_attr.c +++ b/drivers/scsi/qla2xxx/qla_attr.c @@ -308,6 +308,61 @@ static struct bin_attribute sysfs_optrom_ctl_attr = { .write = qla2x00_sysfs_write_optrom_ctl, }; +static ssize_t +qla2x00_sysfs_read_vpd(struct kobject *kobj, 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))); + unsigned long flags; + + if (!capable(CAP_SYS_ADMIN) || off != 0) + return 0; + + if (!IS_QLA24XX(ha) && !IS_QLA54XX(ha)) + return -ENOTSUPP; + + /* Read NVRAM. */ + spin_lock_irqsave(&ha->hardware_lock, flags); + ha->isp_ops.read_nvram(ha, (uint8_t *)buf, ha->vpd_base, ha->vpd_size); + spin_unlock_irqrestore(&ha->hardware_lock, flags); + + return ha->vpd_size; +} + +static ssize_t +qla2x00_sysfs_write_vpd(struct kobject *kobj, 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))); + unsigned long flags; + + if (!capable(CAP_SYS_ADMIN) || off != 0 || count != ha->vpd_size) + return 0; + + if (!IS_QLA24XX(ha) && !IS_QLA54XX(ha)) + return -ENOTSUPP; + + /* Write NVRAM. */ + spin_lock_irqsave(&ha->hardware_lock, flags); + ha->isp_ops.write_nvram(ha, (uint8_t *)buf, ha->vpd_base, count); + spin_unlock_irqrestore(&ha->hardware_lock, flags); + + return count; +} + +static struct bin_attribute sysfs_vpd_attr = { + .attr = { + .name = "vpd", + .mode = S_IRUSR | S_IWUSR, + .owner = THIS_MODULE, + }, + .size = 0, + .read = qla2x00_sysfs_read_vpd, + .write = qla2x00_sysfs_write_vpd, +}; + void qla2x00_alloc_sysfs_attr(scsi_qla_host_t *ha) { @@ -318,6 +373,7 @@ qla2x00_alloc_sysfs_attr(scsi_qla_host_t *ha) sysfs_create_bin_file(&host->shost_gendev.kobj, &sysfs_optrom_attr); sysfs_create_bin_file(&host->shost_gendev.kobj, &sysfs_optrom_ctl_attr); + sysfs_create_bin_file(&host->shost_gendev.kobj, &sysfs_vpd_attr); } void @@ -330,6 +386,7 @@ qla2x00_free_sysfs_attr(scsi_qla_host_t *ha) sysfs_remove_bin_file(&host->shost_gendev.kobj, &sysfs_optrom_attr); sysfs_remove_bin_file(&host->shost_gendev.kobj, &sysfs_optrom_ctl_attr); + sysfs_remove_bin_file(&host->shost_gendev.kobj, &sysfs_vpd_attr); if (ha->beacon_blink_led == 1) ha->isp_ops.beacon_off(ha); |