Altera TSE: Add Miscellaneous Files for Altera Ethernet Driver

This patch adds miscellaneous files for the Altera Ethernet Driver,
including ethtool support.

Signed-off-by: Vince Bridgers <vbridgers2013@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

3 files changed, 298 insertions, 0 deletions

diff --git a/drivers/net/ethernet/altera/altera_tse_ethtool.c b/drivers/net/ethernet/altera/altera_tse_ethtool.c
new file mode 100644
index 000000000000..63ac5f4960e4
--- /dev/null
+++ b/drivers/net/ethernet/altera/altera_tse_ethtool.c
@@ -0,0 +1,227 @@
+/* Ethtool support for Altera Triple-Speed Ethernet MAC driver
+ * Copyright (C) 2008-2014 Altera Corporation. All rights reserved
+ *
+ * Contributors:
+ *   Dalon Westergreen
+ *   Thomas Chou
+ *   Ian Abbott
+ *   Yuriy Kozlov
+ *   Tobias Klauser
+ *   Andriy Smolskyy
+ *   Roman Bulgakov
+ *   Dmytro Mytarchuk
+ *
+ * Original driver contributed by SLS.
+ * Major updates contributed by GlobalLogic
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope 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 <linux/kernel.h>
+#include <linux/netdevice.h>
+#include <linux/phy.h>
+
+#include "altera_tse.h"
+
+#define TSE_STATS_LEN   31
+#define TSE_NUM_REGS    128
+
+static char const stat_gstrings[][ETH_GSTRING_LEN] = {
+        "tx_packets",
+        "rx_packets",
+        "rx_crc_errors",
+        "rx_align_errors",
+        "tx_bytes",
+        "rx_bytes",
+        "tx_pause",
+        "rx_pause",
+        "rx_errors",
+        "tx_errors",
+        "rx_unicast",
+        "rx_multicast",
+        "rx_broadcast",
+        "tx_discards",
+        "tx_unicast",
+        "tx_multicast",
+        "tx_broadcast",
+        "ether_drops",
+        "rx_total_bytes",
+        "rx_total_packets",
+        "rx_undersize",
+        "rx_oversize",
+        "rx_64_bytes",
+        "rx_65_127_bytes",
+        "rx_128_255_bytes",
+        "rx_256_511_bytes",
+        "rx_512_1023_bytes",
+        "rx_1024_1518_bytes",
+        "rx_gte_1519_bytes",
+        "rx_jabbers",
+        "rx_runts",
+};
+
+static void tse_get_drvinfo(struct net_device *dev,
+                            struct ethtool_drvinfo *info)
+{
+        struct altera_tse_private *priv = netdev_priv(dev);
+        u32 rev = ioread32(&priv->mac_dev->megacore_revision);
+
+        strcpy(info->driver, "Altera TSE MAC IP Driver");
+        strcpy(info->version, "v8.0");
+        snprintf(info->fw_version, ETHTOOL_FWVERS_LEN, "v%d.%d",
+                 rev & 0xFFFF, (rev & 0xFFFF0000) >> 16);
+        sprintf(info->bus_info, "platform");
+}
+
+/* Fill in a buffer with the strings which correspond to the
+ * stats
+ */
+static void tse_gstrings(struct net_device *dev, u32 stringset, u8 *buf)
+{
+        memcpy(buf, stat_gstrings, TSE_STATS_LEN * ETH_GSTRING_LEN);
+}
+
+static void tse_fill_stats(struct net_device *dev, struct ethtool_stats *dummy,
+                           u64 *buf)
+{
+        struct altera_tse_private *priv = netdev_priv(dev);
+        struct altera_tse_mac *mac = priv->mac_dev;
+        u64 ext;
+
+        buf[0] = ioread32(&mac->frames_transmitted_ok);
+        buf[1] = ioread32(&mac->frames_received_ok);
+        buf[2] = ioread32(&mac->frames_check_sequence_errors);
+        buf[3] = ioread32(&mac->alignment_errors);
+
+        /* Extended aOctetsTransmittedOK counter */
+        ext = (u64) ioread32(&mac->msb_octets_transmitted_ok) << 32;
+        ext |= ioread32(&mac->octets_transmitted_ok);
+        buf[4] = ext;
+
+        /* Extended aOctetsReceivedOK counter */
+        ext = (u64) ioread32(&mac->msb_octets_received_ok) << 32;
+        ext |= ioread32(&mac->octets_received_ok);
+        buf[5] = ext;
+
+        buf[6] = ioread32(&mac->tx_pause_mac_ctrl_frames);
+        buf[7] = ioread32(&mac->rx_pause_mac_ctrl_frames);
+        buf[8] = ioread32(&mac->if_in_errors);
+        buf[9] = ioread32(&mac->if_out_errors);
+        buf[10] = ioread32(&mac->if_in_ucast_pkts);
+        buf[11] = ioread32(&mac->if_in_multicast_pkts);
+        buf[12] = ioread32(&mac->if_in_broadcast_pkts);
+        buf[13] = ioread32(&mac->if_out_discards);
+        buf[14] = ioread32(&mac->if_out_ucast_pkts);
+        buf[15] = ioread32(&mac->if_out_multicast_pkts);
+        buf[16] = ioread32(&mac->if_out_broadcast_pkts);
+        buf[17] = ioread32(&mac->ether_stats_drop_events);
+
+        /* Extended etherStatsOctets counter */
+        ext = (u64) ioread32(&mac->msb_ether_stats_octets) << 32;
+        ext |= ioread32(&mac->ether_stats_octets);
+        buf[18] = ext;
+
+        buf[19] = ioread32(&mac->ether_stats_pkts);
+        buf[20] = ioread32(&mac->ether_stats_undersize_pkts);
+        buf[21] = ioread32(&mac->ether_stats_oversize_pkts);
+        buf[22] = ioread32(&mac->ether_stats_pkts_64_octets);
+        buf[23] = ioread32(&mac->ether_stats_pkts_65to127_octets);
+        buf[24] = ioread32(&mac->ether_stats_pkts_128to255_octets);
+        buf[25] = ioread32(&mac->ether_stats_pkts_256to511_octets);
+        buf[26] = ioread32(&mac->ether_stats_pkts_512to1023_octets);
+        buf[27] = ioread32(&mac->ether_stats_pkts_1024to1518_octets);
+        buf[28] = ioread32(&mac->ether_stats_pkts_1519tox_octets);
+        buf[29] = ioread32(&mac->ether_stats_jabbers);
+        buf[30] = ioread32(&mac->ether_stats_fragments);
+}
+
+static int tse_sset_count(struct net_device *dev, int sset)
+{
+        switch (sset) {
+        case ETH_SS_STATS:
+                return TSE_STATS_LEN;
+        default:
+                return -EOPNOTSUPP;
+        }
+}
+
+static u32 tse_get_msglevel(struct net_device *dev)
+{
+        struct altera_tse_private *priv = netdev_priv(dev);
+        return priv->msg_enable;
+}
+
+static void tse_set_msglevel(struct net_device *dev, uint32_t data)
+{
+        struct altera_tse_private *priv = netdev_priv(dev);
+        priv->msg_enable = data;
+}
+
+static int tse_reglen(struct net_device *dev)
+{
+        return TSE_NUM_REGS * sizeof(u32);
+}
+
+static void tse_get_regs(struct net_device *dev, struct ethtool_regs *regs,
+                         void *regbuf)
+{
+        int i;
+        struct altera_tse_private *priv = netdev_priv(dev);
+        u32 *tse_mac_regs = (u32 *)priv->mac_dev;
+        u32 *buf = regbuf;
+
+        for (i = 0; i < TSE_NUM_REGS; i++)
+                buf[i] = ioread32(&tse_mac_regs[i]);
+}
+
+static int tse_get_settings(struct net_device *dev, struct ethtool_cmd *cmd)
+{
+        struct altera_tse_private *priv = netdev_priv(dev);
+        struct phy_device *phydev = priv->phydev;
+
+        if (phydev == NULL)
+                return -ENODEV;
+
+        return phy_ethtool_gset(phydev, cmd);
+}
+
+static int tse_set_settings(struct net_device *dev, struct ethtool_cmd *cmd)
+{
+        struct altera_tse_private *priv = netdev_priv(dev);
+        struct phy_device *phydev = priv->phydev;
+
+        if (phydev == NULL)
+                return -ENODEV;
+
+        return phy_ethtool_sset(phydev, cmd);
+}
+
+static const struct ethtool_ops tse_ethtool_ops = {
+        .get_drvinfo = tse_get_drvinfo,
+        .get_regs_len = tse_reglen,
+        .get_regs = tse_get_regs,
+        .get_link = ethtool_op_get_link,
+        .get_settings = tse_get_settings,
+        .set_settings = tse_set_settings,
+        .get_strings = tse_gstrings,
+        .get_sset_count = tse_sset_count,
+        .get_ethtool_stats = tse_fill_stats,
+        .get_msglevel = tse_get_msglevel,
+        .set_msglevel = tse_set_msglevel,
+};
+
+void altera_tse_set_ethtool_ops(struct net_device *netdev)
+{
+        SET_ETHTOOL_OPS(netdev, &tse_ethtool_ops);
+}
diff --git a/drivers/net/ethernet/altera/altera_utils.c b/drivers/net/ethernet/altera/altera_utils.c
new file mode 100644
index 000000000000..70fa13f486b2
--- /dev/null
+++ b/drivers/net/ethernet/altera/altera_utils.c
@@ -0,0 +1,44 @@
+/* Altera TSE SGDMA and MSGDMA Linux driver
+ * Copyright (C) 2014 Altera Corporation. All rights reserved
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope 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 "altera_tse.h"
+#include "altera_utils.h"
+
+void tse_set_bit(void __iomem *ioaddr, u32 bit_mask)
+{
+        u32 value = ioread32(ioaddr);
+        value |= bit_mask;
+        iowrite32(value, ioaddr);
+}
+
+void tse_clear_bit(void __iomem *ioaddr, u32 bit_mask)
+{
+        u32 value = ioread32(ioaddr);
+        value &= ~bit_mask;
+        iowrite32(value, ioaddr);
+}
+
+int tse_bit_is_set(void __iomem *ioaddr, u32 bit_mask)
+{
+        u32 value = ioread32(ioaddr);
+        return (value & bit_mask) ? 1 : 0;
+}
+
+int tse_bit_is_clear(void __iomem *ioaddr, u32 bit_mask)
+{
+        u32 value = ioread32(ioaddr);
+        return (value & bit_mask) ? 0 : 1;
+}
diff --git a/drivers/net/ethernet/altera/altera_utils.h b/drivers/net/ethernet/altera/altera_utils.h
new file mode 100644
index 000000000000..ce1db36d3583
--- /dev/null
+++ b/drivers/net/ethernet/altera/altera_utils.h
@@ -0,0 +1,27 @@
+/* Altera TSE SGDMA and MSGDMA Linux driver
+ * Copyright (C) 2014 Altera Corporation. All rights reserved
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope 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/kernel.h>
+
+#ifndef __ALTERA_UTILS_H__
+#define __ALTERA_UTILS_H__
+
+void tse_set_bit(void __iomem *ioaddr, u32 bit_mask);
+void tse_clear_bit(void __iomem *ioaddr, u32 bit_mask);
+int tse_bit_is_set(void __iomem *ioaddr, u32 bit_mask);
+int tse_bit_is_clear(void __iomem *ioaddr, u32 bit_mask);
+
+#endif /* __ALTERA_UTILS_H__*/