amd-xgbe: Add ECC status support for the device memory

Some versions of the amd-xgbe device are capable of reporting ECC error
information back to the driver. Add support to process, track and report
on this information.

Signed-off-by: Tom Lendacky <thomas.lendacky@amd.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/drivers/net/ethernet/amd/xgbe/xgbe-main.c b/drivers/net/ethernet/amd/xgbe/xgbe-main.c
index 7655753..b16b7b6 100644
--- a/drivers/net/ethernet/amd/xgbe/xgbe-main.c
+++ b/drivers/net/ethernet/amd/xgbe/xgbe-main.c
@@ -190,6 +190,7 @@ struct xgbe_prv_data *xgbe_alloc_pdata(struct device *dev)
 	pdata->msg_enable = netif_msg_init(debug, default_msg_level);
 
 	set_bit(XGBE_DOWN, &pdata->dev_state);
+	set_bit(XGBE_STOPPED, &pdata->dev_state);
 
 	return pdata;
 }
@@ -263,6 +264,14 @@ int xgbe_config_netdev(struct xgbe_prv_data *pdata)
 	netdev->base_addr = (unsigned long)pdata->xgmac_regs;
 	memcpy(netdev->dev_addr, pdata->mac_addr, netdev->addr_len);
 
+	/* Initialize ECC timestamps */
+	pdata->tx_sec_period = jiffies;
+	pdata->tx_ded_period = jiffies;
+	pdata->rx_sec_period = jiffies;
+	pdata->rx_ded_period = jiffies;
+	pdata->desc_sec_period = jiffies;
+	pdata->desc_ded_period = jiffies;
+
 	/* Issue software reset to device */
 	pdata->hw_if.exit(pdata);
 
@@ -384,6 +393,10 @@ int xgbe_config_netdev(struct xgbe_prv_data *pdata)
 	snprintf(pdata->an_name, sizeof(pdata->an_name) - 1, "%s-pcs",
 		 netdev_name(netdev));
 
+	/* Create the ECC name based on netdev name */
+	snprintf(pdata->ecc_name, sizeof(pdata->ecc_name) - 1, "%s-ecc",
+		 netdev_name(netdev));
+
 	/* Create workqueues */
 	pdata->dev_workqueue =
 		create_singlethread_workqueue(netdev_name(netdev));