Add the rt linux 4.1.3-rt3 as base

Import the rt linux 4.1.3-rt3 as OPNFV kvm base.

It's from git://git.kernel.org/pub/scm/linux/kernel/git/rt/linux-rt-devel.git linux-4.1.y-rt and
the base is:

commit 0917f823c59692d751951bf5ea699a2d1e2f26a2
Author: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Date:   Sat Jul 25 12:13:34 2015 +0200

    Prepare v4.1.3-rt3

    Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>

We lose all the git history this way and it's not good. We
should apply another opnfv project repo in future.

Change-Id: I87543d81c9df70d99c5001fbdf646b202c19f423
Signed-off-by: Yunhong Jiang <yunhong.jiang@intel.com>

1 files changed, 150 insertions, 0 deletions

diff --git a/kernel/drivers/net/ethernet/apm/xgene/xgene_enet_ethtool.c b/kernel/drivers/net/ethernet/apm/xgene/xgene_enet_ethtool.c
new file mode 100644
index 000000000..416d6ebfc
--- /dev/null
+++ b/kernel/drivers/net/ethernet/apm/xgene/xgene_enet_ethtool.c
@@ -0,0 +1,150 @@
+/* Applied Micro X-Gene SoC Ethernet Driver
+ *
+ * Copyright (c) 2014, Applied Micro Circuits Corporation
+ * Authors: Iyappan Subramanian <isubramanian@apm.com>
+ *
+ * This program is free software; you can redistribute  it and/or modify it
+ * under  the terms of  the GNU General  Public License as published by the
+ * Free Software Foundation;  either version 2 of the  License, or (at your
+ * option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <linux/ethtool.h>
+#include "xgene_enet_main.h"
+
+struct xgene_gstrings_stats {
+	char name[ETH_GSTRING_LEN];
+	int offset;
+};
+
+#define XGENE_STAT(m) { #m, offsetof(struct xgene_enet_pdata, stats.m) }
+
+static const struct xgene_gstrings_stats gstrings_stats[] = {
+	XGENE_STAT(rx_packets),
+	XGENE_STAT(tx_packets),
+	XGENE_STAT(rx_bytes),
+	XGENE_STAT(tx_bytes),
+	XGENE_STAT(rx_errors),
+	XGENE_STAT(tx_errors),
+	XGENE_STAT(rx_length_errors),
+	XGENE_STAT(rx_crc_errors),
+	XGENE_STAT(rx_frame_errors),
+	XGENE_STAT(rx_fifo_errors)
+};
+
+#define XGENE_STATS_LEN		ARRAY_SIZE(gstrings_stats)
+
+static void xgene_get_drvinfo(struct net_device *ndev,
+			      struct ethtool_drvinfo *info)
+{
+	struct xgene_enet_pdata *pdata = netdev_priv(ndev);
+	struct platform_device *pdev = pdata->pdev;
+
+	strcpy(info->driver, "xgene_enet");
+	strcpy(info->version, XGENE_DRV_VERSION);
+	snprintf(info->fw_version, ETHTOOL_FWVERS_LEN, "N/A");
+	sprintf(info->bus_info, "%s", pdev->name);
+}
+
+static int xgene_get_settings(struct net_device *ndev, struct ethtool_cmd *cmd)
+{
+	struct xgene_enet_pdata *pdata = netdev_priv(ndev);
+	struct phy_device *phydev = pdata->phy_dev;
+
+	if (pdata->phy_mode == PHY_INTERFACE_MODE_RGMII) {
+		if (phydev == NULL)
+			return -ENODEV;
+
+		return phy_ethtool_gset(phydev, cmd);
+	} else if (pdata->phy_mode == PHY_INTERFACE_MODE_SGMII) {
+		cmd->supported = SUPPORTED_1000baseT_Full |
+				 SUPPORTED_Autoneg | SUPPORTED_MII;
+		cmd->advertising = cmd->supported;
+		ethtool_cmd_speed_set(cmd, SPEED_1000);
+		cmd->duplex = DUPLEX_FULL;
+		cmd->port = PORT_MII;
+		cmd->transceiver = XCVR_INTERNAL;
+		cmd->autoneg = AUTONEG_ENABLE;
+	} else {
+		cmd->supported = SUPPORTED_10000baseT_Full | SUPPORTED_FIBRE;
+		cmd->advertising = cmd->supported;
+		ethtool_cmd_speed_set(cmd, SPEED_10000);
+		cmd->duplex = DUPLEX_FULL;
+		cmd->port = PORT_FIBRE;
+		cmd->transceiver = XCVR_INTERNAL;
+		cmd->autoneg = AUTONEG_DISABLE;
+	}
+
+	return 0;
+}
+
+static int xgene_set_settings(struct net_device *ndev, struct ethtool_cmd *cmd)
+{
+	struct xgene_enet_pdata *pdata = netdev_priv(ndev);
+	struct phy_device *phydev = pdata->phy_dev;
+
+	if (pdata->phy_mode == PHY_INTERFACE_MODE_RGMII) {
+		if (phydev == NULL)
+			return -ENODEV;
+
+		return phy_ethtool_sset(phydev, cmd);
+	}
+
+	return -EINVAL;
+}
+
+static void xgene_get_strings(struct net_device *ndev, u32 stringset, u8 *data)
+{
+	int i;
+	u8 *p = data;
+
+	if (stringset != ETH_SS_STATS)
+		return;
+
+	for (i = 0; i < XGENE_STATS_LEN; i++) {
+		memcpy(p, gstrings_stats[i].name, ETH_GSTRING_LEN);
+		p += ETH_GSTRING_LEN;
+	}
+}
+
+static int xgene_get_sset_count(struct net_device *ndev, int sset)
+{
+	if (sset != ETH_SS_STATS)
+		return -EINVAL;
+
+	return XGENE_STATS_LEN;
+}
+
+static void xgene_get_ethtool_stats(struct net_device *ndev,
+				    struct ethtool_stats *dummy,
+				    u64 *data)
+{
+	void *pdata = netdev_priv(ndev);
+	int i;
+
+	for (i = 0; i < XGENE_STATS_LEN; i++)
+		*data++ = *(u64 *)(pdata + gstrings_stats[i].offset);
+}
+
+static const struct ethtool_ops xgene_ethtool_ops = {
+	.get_drvinfo = xgene_get_drvinfo,
+	.get_settings = xgene_get_settings,
+	.set_settings = xgene_set_settings,
+	.get_link = ethtool_op_get_link,
+	.get_strings = xgene_get_strings,
+	.get_sset_count = xgene_get_sset_count,
+	.get_ethtool_stats = xgene_get_ethtool_stats
+};
+
+void xgene_enet_set_ethtool_ops(struct net_device *ndev)
+{
+	ndev->ethtool_ops = &xgene_ethtool_ops;
+}