summaryrefslogtreecommitdiffstats
path: root/drivers/scsi/qla2xxx/qla_attr.c
diff options
context:
space:
mode:
authorAndrew Vasquez <andrew.vasquez@qlogic.com>2010-12-22 01:00:21 +0100
committerJames Bottomley <James.Bottomley@suse.de>2010-12-23 23:04:37 +0100
commit794a5691147652387f4a2ffa890c5c1983e38849 (patch)
tree6d64e68ef373bb5c6caa570c7edb022e2d5185e3 /drivers/scsi/qla2xxx/qla_attr.c
parent[SCSI] qla2xxx: Code cleanup to remove unwanted comments and code. (diff)
downloadlinux-794a5691147652387f4a2ffa890c5c1983e38849.tar.xz
linux-794a5691147652387f4a2ffa890c5c1983e38849.zip
[SCSI] qla2xxx: Add sysfs node for displaying board temperature.
Signed-off-by: Andrew Vasquez <andrew.vasquez@qlogic.com> Signed-off-by: Madhuranath Iyengar <Madhu.Iyengar@qlogic.com> Signed-off-by: James Bottomley <James.Bottomley@suse.de>
Diffstat (limited to 'drivers/scsi/qla2xxx/qla_attr.c')
-rw-r--r--drivers/scsi/qla2xxx/qla_attr.c27
1 files changed, 27 insertions, 0 deletions
diff --git a/drivers/scsi/qla2xxx/qla_attr.c b/drivers/scsi/qla2xxx/qla_attr.c
index bc8194f74625..44578b56ad0a 100644
--- a/drivers/scsi/qla2xxx/qla_attr.c
+++ b/drivers/scsi/qla2xxx/qla_attr.c
@@ -1309,6 +1309,31 @@ qla2x00_fabric_param_show(struct device *dev, struct device_attribute *attr,
}
static ssize_t
+qla2x00_thermal_temp_show(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ scsi_qla_host_t *vha = shost_priv(class_to_shost(dev));
+ int rval = QLA_FUNCTION_FAILED;
+ uint16_t temp, frac;
+
+ if (!vha->hw->flags.thermal_supported)
+ return snprintf(buf, PAGE_SIZE, "\n");
+
+ temp = frac = 0;
+ if (test_bit(ABORT_ISP_ACTIVE, &vha->dpc_flags) ||
+ test_bit(ISP_ABORT_NEEDED, &vha->dpc_flags))
+ DEBUG2_3_11(printk(KERN_WARNING
+ "%s(%ld): isp reset in progress.\n",
+ __func__, vha->host_no));
+ else if (!vha->hw->flags.eeh_busy)
+ rval = qla2x00_get_thermal_temp(vha, &temp, &frac);
+ if (rval != QLA_SUCCESS)
+ temp = frac = 0;
+
+ return snprintf(buf, PAGE_SIZE, "%d.%02d\n", temp, frac);
+}
+
+static ssize_t
qla2x00_fw_state_show(struct device *dev, struct device_attribute *attr,
char *buf)
{
@@ -1366,6 +1391,7 @@ static DEVICE_ATTR(vn_port_mac_address, S_IRUGO,
qla2x00_vn_port_mac_address_show, NULL);
static DEVICE_ATTR(fabric_param, S_IRUGO, qla2x00_fabric_param_show, NULL);
static DEVICE_ATTR(fw_state, S_IRUGO, qla2x00_fw_state_show, NULL);
+static DEVICE_ATTR(thermal_temp, S_IRUGO, qla2x00_thermal_temp_show, NULL);
struct device_attribute *qla2x00_host_attrs[] = {
&dev_attr_driver_version,
@@ -1394,6 +1420,7 @@ struct device_attribute *qla2x00_host_attrs[] = {
&dev_attr_fabric_param,
&dev_attr_fw_state,
&dev_attr_optrom_gold_fw_version,
+ &dev_attr_thermal_temp,
NULL,
};