From 41a6ae1ebd51d074a43d608b8ecfc9dd2b323d5e Mon Sep 17 00:00:00 2001
From: Ira Weiny <ira.weiny@intel.com>
Date: Wed, 15 Jun 2016 02:22:07 -0400
Subject: IB/core: Export a common fw_ver sysfs entry

Now that all the devices have stopped exporting their own sysfs
entry points we can have the core export this on their behalf.

Eventually this may be removed but this provides for backwards
compatibility.

Reviewed-by: Dennis Dalessandro <dennis.dalessandro@intel.com>
Signed-off-by: Ira Weiny <ira.weiny@intel.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>

diff --git a/drivers/infiniband/core/sysfs.c b/drivers/infiniband/core/sysfs.c
index a5793c8..0d1ab73 100644
--- a/drivers/infiniband/core/sysfs.c
+++ b/drivers/infiniband/core/sysfs.c
@@ -38,6 +38,7 @@
 #include <linux/stat.h>
 #include <linux/string.h>
 #include <linux/netdevice.h>
+#include <linux/ethtool.h>
 
 #include <rdma/ib_mad.h>
 #include <rdma/ib_pma.h>
@@ -1196,16 +1197,28 @@ static ssize_t set_node_desc(struct device *device,
 	return count;
 }
 
+static ssize_t show_fw_ver(struct device *device, struct device_attribute *attr,
+			   char *buf)
+{
+	struct ib_device *dev = container_of(device, struct ib_device, dev);
+
+	ib_get_device_fw_str(dev, buf, PAGE_SIZE);
+	strlcat(buf, "\n", PAGE_SIZE);
+	return strlen(buf);
+}
+
 static DEVICE_ATTR(node_type, S_IRUGO, show_node_type, NULL);
 static DEVICE_ATTR(sys_image_guid, S_IRUGO, show_sys_image_guid, NULL);
 static DEVICE_ATTR(node_guid, S_IRUGO, show_node_guid, NULL);
 static DEVICE_ATTR(node_desc, S_IRUGO | S_IWUSR, show_node_desc, set_node_desc);
+static DEVICE_ATTR(fw_ver, S_IRUGO, show_fw_ver, NULL);
 
 static struct device_attribute *ib_class_attributes[] = {
 	&dev_attr_node_type,
 	&dev_attr_sys_image_guid,
 	&dev_attr_node_guid,
-	&dev_attr_node_desc
+	&dev_attr_node_desc,
+	&dev_attr_fw_ver,
 };
 
 static void free_port_list_attributes(struct ib_device *device)
-- 
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