ath79: add support for kernel 5.4

Signed-off-by: David Bauer <mail@david-bauer.net>
[refreshed]
Signed-off-by: Koen Vandeputte <koen.vandeputte@ncentric.com>

* Sync the patches with the changes done for kernel 4.19
* Use KERNEL_TESTING_PATCHVER
* Refresh the configuration
* Fix multiple compile bugs in the patches
* Only add own ag71xx files for kernel 4.19 and use upstream version for
  5.4.

Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>

1 files changed, 108 insertions, 0 deletions

diff --git a/target/linux/ath79/files-4.19/drivers/net/ethernet/atheros/ag71xx/ag71xx_ethtool.c b/target/linux/ath79/files-4.19/drivers/net/ethernet/atheros/ag71xx/ag71xx_ethtool.c
new file mode 100644
index 0000000000..2cd7b1be83
--- /dev/null
+++ b/target/linux/ath79/files-4.19/drivers/net/ethernet/atheros/ag71xx/ag71xx_ethtool.c
@@ -0,0 +1,108 @@
+/*
+ *  Atheros AR71xx built-in ethernet mac driver
+ *
+ *  Copyright (C) 2008-2010 Gabor Juhos <juhosg@openwrt.org>
+ *  Copyright (C) 2008 Imre Kaloz <kaloz@openwrt.org>
+ *
+ *  Based on Atheros' AG7100 driver
+ *
+ *  This program is free software; you can redistribute it and/or modify it
+ *  under the terms of the GNU General Public License version 2 as published
+ *  by the Free Software Foundation.
+ */
+
+#include "ag71xx.h"
+
+static u32 ag71xx_ethtool_get_msglevel(struct net_device *dev)
+{
+	struct ag71xx *ag = netdev_priv(dev);
+
+	return ag->msg_enable;
+}
+
+static void ag71xx_ethtool_set_msglevel(struct net_device *dev, u32 msg_level)
+{
+	struct ag71xx *ag = netdev_priv(dev);
+
+	ag->msg_enable = msg_level;
+}
+
+static void ag71xx_ethtool_get_ringparam(struct net_device *dev,
+					 struct ethtool_ringparam *er)
+{
+	struct ag71xx *ag = netdev_priv(dev);
+
+	er->tx_max_pending = AG71XX_TX_RING_SIZE_MAX;
+	er->rx_max_pending = AG71XX_RX_RING_SIZE_MAX;
+	er->rx_mini_max_pending = 0;
+	er->rx_jumbo_max_pending = 0;
+
+	er->tx_pending = BIT(ag->tx_ring.order);
+	er->rx_pending = BIT(ag->rx_ring.order);
+	er->rx_mini_pending = 0;
+	er->rx_jumbo_pending = 0;
+
+	if (ag->tx_ring.desc_split)
+		er->tx_pending /= AG71XX_TX_RING_DS_PER_PKT;
+}
+
+static int ag71xx_ethtool_set_ringparam(struct net_device *dev,
+					struct ethtool_ringparam *er)
+{
+	struct ag71xx *ag = netdev_priv(dev);
+	unsigned tx_size;
+	unsigned rx_size;
+	int err = 0;
+
+	if (er->rx_mini_pending != 0||
+	    er->rx_jumbo_pending != 0 ||
+	    er->rx_pending == 0 ||
+	    er->tx_pending == 0)
+		return -EINVAL;
+
+	tx_size = er->tx_pending < AG71XX_TX_RING_SIZE_MAX ?
+		  er->tx_pending : AG71XX_TX_RING_SIZE_MAX;
+
+	rx_size = er->rx_pending < AG71XX_RX_RING_SIZE_MAX ?
+		  er->rx_pending : AG71XX_RX_RING_SIZE_MAX;
+
+	if (netif_running(dev)) {
+		err = dev->netdev_ops->ndo_stop(dev);
+		if (err)
+			return err;
+	}
+
+	if (ag->tx_ring.desc_split)
+		tx_size *= AG71XX_TX_RING_DS_PER_PKT;
+
+	ag->tx_ring.order = ag71xx_ring_size_order(tx_size);
+	ag->rx_ring.order = ag71xx_ring_size_order(rx_size);
+
+	if (netif_running(dev))
+		err = dev->netdev_ops->ndo_open(dev);
+
+	return err;
+}
+
+static int ag71xx_ethtool_nway_reset(struct net_device *dev)
+{
+	struct ag71xx *ag = netdev_priv(dev);
+	struct phy_device *phydev = ag->phy_dev;
+
+	if (!phydev)
+		return -ENODEV;
+
+	return genphy_restart_aneg(phydev);
+}
+
+struct ethtool_ops ag71xx_ethtool_ops = {
+	.get_msglevel	= ag71xx_ethtool_get_msglevel,
+	.set_msglevel	= ag71xx_ethtool_set_msglevel,
+	.get_ringparam	= ag71xx_ethtool_get_ringparam,
+	.set_ringparam	= ag71xx_ethtool_set_ringparam,
+	.get_link_ksettings = phy_ethtool_get_link_ksettings,
+	.set_link_ksettings = phy_ethtool_set_link_ksettings,
+	.get_link	= ethtool_op_get_link,
+	.get_ts_info	= ethtool_op_get_ts_info,
+	.nway_reset	= ag71xx_ethtool_nway_reset,
+};