summaryrefslogtreecommitdiffstats
path: root/drivers/infiniband/hw/ipath/ipath_sysfs.c
diff options
context:
space:
mode:
authorMichael Albaugh <Michael.Albaugh@qlogic.com>2008-04-16 21:09:27 -0700
committerRoland Dreier <rolandd@cisco.com>2008-04-16 21:09:27 -0700
commitd84e0b28d3a0b41fc574ea50d60522ae0fba75f4 (patch)
tree25244e8c9e8d0cd3e3475c9bc02cc44c24135dcf /drivers/infiniband/hw/ipath/ipath_sysfs.c
parentd98b1937768c9f4e4420bd25406e5f0304d224bb (diff)
IB/ipath: EEPROM support for 7220 devices, robustness improvements, cleanup
Add support for reading newer card's EEPROMs while continuing to support older EEPROMs. Also, add support for the temperature sensor if present. Signed-off-by: Michael Albaugh <Michael.Albaugh@qlogic.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
Diffstat (limited to 'drivers/infiniband/hw/ipath/ipath_sysfs.c')
-rw-r--r--drivers/infiniband/hw/ipath/ipath_sysfs.c73
1 files changed, 73 insertions, 0 deletions
diff --git a/drivers/infiniband/hw/ipath/ipath_sysfs.c b/drivers/infiniband/hw/ipath/ipath_sysfs.c
index bb41c3f6aad..7961d26404f 100644
--- a/drivers/infiniband/hw/ipath/ipath_sysfs.c
+++ b/drivers/infiniband/hw/ipath/ipath_sysfs.c
@@ -943,6 +943,7 @@ invalid:
bail:
return ret;
}
+
/*
* Get/Set RX lane-reversal enable. 0=no, 1=yes.
*/
@@ -997,6 +998,75 @@ static struct attribute_group driver_attr_group = {
.attrs = driver_attributes
};
+static ssize_t store_tempsense(struct device *dev,
+ struct device_attribute *attr,
+ const char *buf,
+ size_t count)
+{
+ struct ipath_devdata *dd = dev_get_drvdata(dev);
+ int ret, stat;
+ u16 val;
+
+ ret = ipath_parse_ushort(buf, &val);
+ if (ret <= 0) {
+ ipath_dev_err(dd, "attempt to set invalid tempsense config\n");
+ goto bail;
+ }
+ /* If anything but the highest limit, enable T_CRIT_A "interrupt" */
+ stat = ipath_tempsense_write(dd, 9, (val == 0x7f7f) ? 0x80 : 0);
+ if (stat) {
+ ipath_dev_err(dd, "Unable to set tempsense config\n");
+ ret = -1;
+ goto bail;
+ }
+ stat = ipath_tempsense_write(dd, 0xB, (u8) (val & 0xFF));
+ if (stat) {
+ ipath_dev_err(dd, "Unable to set local Tcrit\n");
+ ret = -1;
+ goto bail;
+ }
+ stat = ipath_tempsense_write(dd, 0xD, (u8) (val >> 8));
+ if (stat) {
+ ipath_dev_err(dd, "Unable to set remote Tcrit\n");
+ ret = -1;
+ goto bail;
+ }
+
+bail:
+ return ret;
+}
+
+/*
+ * dump tempsense regs. in decimal, to ease shell-scripts.
+ */
+static ssize_t show_tempsense(struct device *dev,
+ struct device_attribute *attr,
+ char *buf)
+{
+ struct ipath_devdata *dd = dev_get_drvdata(dev);
+ int ret;
+ int idx;
+ u8 regvals[8];
+
+ ret = -ENXIO;
+ for (idx = 0; idx < 8; ++idx) {
+ if (idx == 6)
+ continue;
+ ret = ipath_tempsense_read(dd, idx);
+ if (ret < 0)
+ break;
+ regvals[idx] = ret;
+ }
+ if (idx == 8)
+ ret = scnprintf(buf, PAGE_SIZE, "%d %d %02X %02X %d %d\n",
+ *(signed char *)(regvals),
+ *(signed char *)(regvals + 1),
+ regvals[2], regvals[3],
+ *(signed char *)(regvals + 5),
+ *(signed char *)(regvals + 7));
+ return ret;
+}
+
struct attribute_group *ipath_driver_attr_groups[] = {
&driver_attr_group,
NULL,
@@ -1025,6 +1095,8 @@ static DEVICE_ATTR(jint_max_packets, S_IWUSR | S_IRUGO,
show_jint_max_packets, store_jint_max_packets);
static DEVICE_ATTR(jint_idle_ticks, S_IWUSR | S_IRUGO,
show_jint_idle_ticks, store_jint_idle_ticks);
+static DEVICE_ATTR(tempsense, S_IWUSR | S_IRUGO,
+ show_tempsense, store_tempsense);
static struct attribute *dev_attributes[] = {
&dev_attr_guid.attr,
@@ -1044,6 +1116,7 @@ static struct attribute *dev_attributes[] = {
&dev_attr_rx_pol_inv.attr,
&dev_attr_led_override.attr,
&dev_attr_logged_errors.attr,
+ &dev_attr_tempsense.attr,
&dev_attr_localbus_info.attr,
NULL
};