net/ncsi: Silence debug messages

In normal operation we see this series of messages as the host drives
the network device:

 ftgmac100 1e660000.ethernet eth0: NCSI: LSC AEN - channel 0 state down
 ftgmac100 1e660000.ethernet eth0: NCSI: suspending channel 0
 ftgmac100 1e660000.ethernet eth0: NCSI: configuring channel 0
 ftgmac100 1e660000.ethernet eth0: NCSI: channel 0 link down after config
 ftgmac100 1e660000.ethernet eth0: NCSI interface down
 ftgmac100 1e660000.ethernet eth0: NCSI: LSC AEN - channel 0 state up
 ftgmac100 1e660000.ethernet eth0: NCSI: configuring channel 0
 ftgmac100 1e660000.ethernet eth0: NCSI interface up
 ftgmac100 1e660000.ethernet eth0: NCSI: LSC AEN - channel 0 state down
 ftgmac100 1e660000.ethernet eth0: NCSI: suspending channel 0
 ftgmac100 1e660000.ethernet eth0: NCSI: configuring channel 0
 ftgmac100 1e660000.ethernet eth0: NCSI: channel 0 link down after config
 ftgmac100 1e660000.ethernet eth0: NCSI interface down
 ftgmac100 1e660000.ethernet eth0: NCSI: LSC AEN - channel 0 state up
 ftgmac100 1e660000.ethernet eth0: NCSI: configuring channel 0
 ftgmac100 1e660000.ethernet eth0: NCSI interface up

This makes all of these messages netdev_dbg. They are still useful to
debug eg. misbehaving network device firmware, but we do not need them
filling up the kernel logs in normal operation.

Acked-by: Samuel Mendoza-Jonas <sam@mendozajonas.com>
Signed-off-by: Joel Stanley <joel@jms.id.au>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/net/ethernet/faraday/ftgmac100.c

@@ -1735,8 +1735,8 @@ static void ftgmac100_ncsi_handler(struct ncsi_dev *nd)
 	if (unlikely(nd->state != ncsi_dev_state_functional))
 		return;
 
-	netdev_info(nd->dev, "NCSI interface %s\n",
-		    nd->link_up ? "up" : "down");
+	netdev_dbg(nd->dev, "NCSI interface %s\n",
+		   nd->link_up ? "up" : "down");
 }
 
 static void ftgmac100_setup_clk(struct ftgmac100 *priv)

net/ncsi/ncsi-aen.c

@@ -73,8 +73,8 @@ static int ncsi_aen_handler_lsc(struct ncsi_dev_priv *ndp,
 	ncm->data[2] = data;
 	ncm->data[4] = ntohl(lsc->oem_status);
 
-	netdev_info(ndp->ndev.dev, "NCSI: LSC AEN - channel %u state %s\n",
-		    nc->id, data & 0x1 ? "up" : "down");
+	netdev_dbg(ndp->ndev.dev, "NCSI: LSC AEN - channel %u state %s\n",
+		   nc->id, data & 0x1 ? "up" : "down");
 
 	chained = !list_empty(&nc->link);
 	state = nc->state;

net/ncsi/ncsi-manage.c

@@ -816,9 +816,9 @@ static void ncsi_configure_channel(struct ncsi_dev_priv *ndp)
 		} else {
 			hot_nc = NULL;
 			nc->state = NCSI_CHANNEL_INACTIVE;
-			netdev_warn(ndp->ndev.dev,
-				    "NCSI: channel %u link down after config\n",
-				    nc->id);
+			netdev_dbg(ndp->ndev.dev,
+				   "NCSI: channel %u link down after config\n",
+				   nc->id);
 		}
 		spin_unlock_irqrestore(&nc->lock, flags);
 
@@ -1199,14 +1199,14 @@ int ncsi_process_next_channel(struct ncsi_dev_priv *ndp)
 	switch (old_state) {
 	case NCSI_CHANNEL_INACTIVE:
 		ndp->ndev.state = ncsi_dev_state_config;
-		netdev_info(ndp->ndev.dev, "NCSI: configuring channel %u\n",
-			    nc->id);
+		netdev_dbg(ndp->ndev.dev, "NCSI: configuring channel %u\n",
+	                   nc->id);
 		ncsi_configure_channel(ndp);
 		break;
 	case NCSI_CHANNEL_ACTIVE:
 		ndp->ndev.state = ncsi_dev_state_suspend;
-		netdev_info(ndp->ndev.dev, "NCSI: suspending channel %u\n",
-			    nc->id);
+		netdev_dbg(ndp->ndev.dev, "NCSI: suspending channel %u\n",
+			   nc->id);
 		ncsi_suspend_channel(ndp);
 		break;
 	default: