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authorMichael Weiser <michael.weiser@gmx.de>2016-11-14 18:58:06 +0100
committerDavid S. Miller <davem@davemloft.net>2016-11-15 22:05:54 -0500
commitb8ca3387fe94ad5a7142f0b3de5aedf7389234c3 (patch)
tree9c635b21a18f21c06d2d6e347a879ba55d0233ba /drivers/net/ethernet/allwinner
parentnet: ethernet: stmmac: change dma descriptors to __le32 (diff)
downloadlinux-dev-b8ca3387fe94ad5a7142f0b3de5aedf7389234c3.tar.xz
linux-dev-b8ca3387fe94ad5a7142f0b3de5aedf7389234c3.zip
net: ethernet: sun4i-emac: Allow to enable netif messages
sun4i-emac has the ability to print a number of diagnostic messages using dev_dbg depending on message level settings implemented using netif_msg_* macros. But there's no way to actually enable them. Add the ability to switch diagnostic messages on using either a module parameter debug or ethtool -s <netif> msglvl <flags>. Signed-off-by: Michael Weiser <michael.weiser@gmx.de> Cc: Maxime Ripard <maxime.ripard@free-electrons.com> Cc: netdev@vger.kernel.org Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/ethernet/allwinner')
-rw-r--r--drivers/net/ethernet/allwinner/sun4i-emac.c22
1 files changed, 22 insertions, 0 deletions
diff --git a/drivers/net/ethernet/allwinner/sun4i-emac.c b/drivers/net/ethernet/allwinner/sun4i-emac.c
index af27f9dbedf2..74012196bce9 100644
--- a/drivers/net/ethernet/allwinner/sun4i-emac.c
+++ b/drivers/net/ethernet/allwinner/sun4i-emac.c
@@ -37,6 +37,11 @@
#define EMAC_MAX_FRAME_LEN 0x0600
+#define EMAC_DEFAULT_MSG_ENABLE 0x0000
+static int debug = -1; /* defaults above */;
+module_param(debug, int, 0);
+MODULE_PARM_DESC(debug, "debug message flags");
+
/* Transmit timeout, default 5 seconds. */
static int watchdog = 5000;
module_param(watchdog, int, 0400);
@@ -225,11 +230,27 @@ static void emac_get_drvinfo(struct net_device *dev,
strlcpy(info->bus_info, dev_name(&dev->dev), sizeof(info->bus_info));
}
+static u32 emac_get_msglevel(struct net_device *dev)
+{
+ struct emac_board_info *db = netdev_priv(dev);
+
+ return db->msg_enable;
+}
+
+static void emac_set_msglevel(struct net_device *dev, u32 value)
+{
+ struct emac_board_info *db = netdev_priv(dev);
+
+ db->msg_enable = value;
+}
+
static const struct ethtool_ops emac_ethtool_ops = {
.get_drvinfo = emac_get_drvinfo,
.get_link = ethtool_op_get_link,
.get_link_ksettings = phy_ethtool_get_link_ksettings,
.set_link_ksettings = phy_ethtool_set_link_ksettings,
+ .get_msglevel = emac_get_msglevel,
+ .set_msglevel = emac_set_msglevel,
};
static unsigned int emac_setup(struct net_device *ndev)
@@ -804,6 +825,7 @@ static int emac_probe(struct platform_device *pdev)
db->dev = &pdev->dev;
db->ndev = ndev;
db->pdev = pdev;
+ db->msg_enable = netif_msg_init(debug, EMAC_DEFAULT_MSG_ENABLE);
spin_lock_init(&db->lock);