qlcnic: add driver debug support

Add debug print in driver, can be tuned by ethtool msg level
callback.

Signed-off-by: Amit Kumar Salecha <amit.salecha@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 16 insertions, 0 deletions

diff --git a/drivers/net/qlcnic/qlcnic_ethtool.c b/drivers/net/qlcnic/qlcnic_ethtool.c
index f83e15fe3e1..08d6f105371 100644
--- a/drivers/net/qlcnic/qlcnic_ethtool.c
+++ b/drivers/net/qlcnic/qlcnic_ethtool.c
@@ -998,6 +998,20 @@ static int qlcnic_set_flags(struct net_device *netdev, u32 data)
         return 0;
 }
 
+static u32 qlcnic_get_msglevel(struct net_device *netdev)
+{
+        struct qlcnic_adapter *adapter = netdev_priv(netdev);
+
+        return adapter->msg_enable;
+}
+
+static void qlcnic_set_msglevel(struct net_device *netdev, u32 msglvl)
+{
+        struct qlcnic_adapter *adapter = netdev_priv(netdev);
+
+        adapter->msg_enable = msglvl;
+}
+
 const struct ethtool_ops qlcnic_ethtool_ops = {
         .get_settings = qlcnic_get_settings,
         .set_settings = qlcnic_set_settings,
@@ -1029,4 +1043,6 @@ const struct ethtool_ops qlcnic_ethtool_ops = {
         .get_flags = ethtool_op_get_flags,
         .set_flags = qlcnic_set_flags,
         .phys_id = qlcnic_blink_led,
+        .set_msglevel = qlcnic_set_msglevel,
+        .get_msglevel = qlcnic_get_msglevel,
 };