IB/ipath: Driver support for userspace sharing of HW contexts

[pandora-kernel.git] / drivers / infiniband / hw / ipath / ipath_sysfs.c

diff --git a/drivers/infiniband/hw/ipath/ipath_sysfs.c b/drivers/infiniband/hw/ipath/ipath_sysfs.c
index e299148..b48ebf6 100644 (file)
--- a/drivers/infiniband/hw/ipath/ipath_sysfs.c
+++ b/drivers/infiniband/hw/ipath/ipath_sysfs.c
@@ -297,6 +297,16 @@ static ssize_t show_nguid(struct device *dev,
        return scnprintf(buf, PAGE_SIZE, "%u\n", dd->ipath_nguid);
 }
 
+static ssize_t show_nports(struct device *dev,
+                          struct device_attribute *attr,
+                          char *buf)
+{
+       struct ipath_devdata *dd = dev_get_drvdata(dev);
+
+       /* Return the number of user ports available. */
+       return scnprintf(buf, PAGE_SIZE, "%u\n", dd->ipath_cfgports - 1);
+}
+
 static ssize_t show_serial(struct device *dev,
                           struct device_attribute *attr,
                           char *buf)
@@ -608,6 +618,7 @@ static DEVICE_ATTR(mlid, S_IWUSR | S_IRUGO, show_mlid, store_mlid);
 static DEVICE_ATTR(mtu, S_IWUSR | S_IRUGO, show_mtu, store_mtu);
 static DEVICE_ATTR(enabled, S_IWUSR | S_IRUGO, show_enabled, store_enabled);
 static DEVICE_ATTR(nguid, S_IRUGO, show_nguid, NULL);
+static DEVICE_ATTR(nports, S_IRUGO, show_nports, NULL);
 static DEVICE_ATTR(reset, S_IWUSR, NULL, store_reset);
 static DEVICE_ATTR(serial, S_IRUGO, show_serial, NULL);
 static DEVICE_ATTR(status, S_IRUGO, show_status, NULL);
@@ -623,6 +634,7 @@ static struct attribute *dev_attributes[] = {
        &dev_attr_mlid.attr,
        &dev_attr_mtu.attr,
        &dev_attr_nguid.attr,
+       &dev_attr_nports.attr,
        &dev_attr_serial.attr,
        &dev_attr_status.attr,
        &dev_attr_status_str.attr,