1 files changed, 57 insertions, 0 deletions

diff --git a/drivers/scsi/qla2xxx/qla_attr.c b/drivers/scsi/qla2xxx/qla_attr.c
index 2b9e329a240..488b3d16427 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);