pasemi_mac: basic ethtool support

First cut at ethtool support, to be completed over time.

Signed-off-by: Olof Johansson <olof@lixom.net>
Acked-by: Jeff Garzik <jgarzik@pobox.com>

1 files changed, 159 insertions, 0 deletions

diff --git a/drivers/net/pasemi_mac_ethtool.c b/drivers/net/pasemi_mac_ethtool.c
new file mode 100644
index 000000000000..5e8df3afea64
--- /dev/null
+++ b/drivers/net/pasemi_mac_ethtool.c
@@ -0,0 +1,159 @@
+/*
+ * Copyright (C) 2006-2008 PA Semi, Inc
+ *
+ * Ethtool hooks for the PA Semi PWRficient onchip 1G/10G Ethernet MACs
+ *
+ * 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.
+ *
+ * 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, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
+ */
+
+
+#include <linux/netdevice.h>
+#include <linux/ethtool.h>
+#include <linux/pci.h>
+#include <linux/inet_lro.h>
+
+#include <asm/pasemi_dma.h>
+#include "pasemi_mac.h"
+
+static struct {
+        const char str[ETH_GSTRING_LEN];
+} ethtool_stats_keys[] = {
+        { "rx-drops" },
+        { "rx-bytes" },
+        { "rx-packets" },
+        { "rx-broadcast-packets" },
+        { "rx-multicast-packets" },
+        { "rx-crc-errors" },
+        { "rx-undersize-errors" },
+        { "rx-oversize-errors" },
+        { "rx-short-fragment-errors" },
+        { "rx-jabber-errors" },
+        { "rx-64-byte-packets" },
+        { "rx-65-127-byte-packets" },
+        { "rx-128-255-byte-packets" },
+        { "rx-256-511-byte-packets" },
+        { "rx-512-1023-byte-packets" },
+        { "rx-1024-1518-byte-packets" },
+        { "rx-pause-frames" },
+        { "tx-bytes" },
+        { "tx-packets" },
+        { "tx-broadcast-packets" },
+        { "tx-multicast-packets" },
+        { "tx-collisions" },
+        { "tx-late-collisions" },
+        { "tx-excessive-collisions" },
+        { "tx-crc-errors" },
+        { "tx-undersize-errors" },
+        { "tx-oversize-errors" },
+        { "tx-64-byte-packets" },
+        { "tx-65-127-byte-packets" },
+        { "tx-128-255-byte-packets" },
+        { "tx-256-511-byte-packets" },
+        { "tx-512-1023-byte-packets" },
+        { "tx-1024-1518-byte-packets" },
+};
+
+static int
+pasemi_mac_ethtool_get_settings(struct net_device *netdev,
+                               struct ethtool_cmd *cmd)
+{
+        struct pasemi_mac *mac = netdev_priv(netdev);
+        struct phy_device *phydev = mac->phydev;
+
+        return phy_ethtool_gset(phydev, cmd);
+}
+
+static void
+pasemi_mac_ethtool_get_drvinfo(struct net_device *netdev,
+                               struct ethtool_drvinfo *drvinfo)
+{
+        struct pasemi_mac *mac;
+        mac = netdev_priv(netdev);
+
+        /* clear and fill out info */
+        memset(drvinfo, 0, sizeof(struct ethtool_drvinfo));
+        strncpy(drvinfo->driver, "pasemi_mac", 12);
+        strcpy(drvinfo->version, "N/A");
+        strcpy(drvinfo->fw_version, "N/A");
+        strncpy(drvinfo->bus_info, pci_name(mac->pdev), 32);
+}
+
+static u32
+pasemi_mac_ethtool_get_msglevel(struct net_device *netdev)
+{
+        struct pasemi_mac *mac = netdev_priv(netdev);
+        return mac->msg_enable;
+}
+
+static void
+pasemi_mac_ethtool_set_msglevel(struct net_device *netdev,
+                                u32 level)
+{
+        struct pasemi_mac *mac = netdev_priv(netdev);
+        mac->msg_enable = level;
+}
+
+
+static void
+pasemi_mac_ethtool_get_ringparam(struct net_device *netdev,
+                                 struct ethtool_ringparam *ering)
+{
+        struct pasemi_mac *mac = netdev->priv;
+
+        ering->tx_max_pending = TX_RING_SIZE/2;
+        ering->tx_pending = RING_USED(mac->tx)/2;
+        ering->rx_max_pending = RX_RING_SIZE/4;
+        ering->rx_pending = RING_USED(mac->rx)/4;
+}
+
+static int pasemi_mac_get_sset_count(struct net_device *netdev, int sset)
+{
+        switch (sset) {
+        case ETH_SS_STATS:
+                return ARRAY_SIZE(ethtool_stats_keys);
+        default:
+                return -EOPNOTSUPP;
+        }
+}
+
+static void pasemi_mac_get_ethtool_stats(struct net_device *netdev,
+                struct ethtool_stats *stats, u64 *data)
+{
+        struct pasemi_mac *mac = netdev->priv;
+        int i;
+
+        data[0] = pasemi_read_dma_reg(PAS_DMA_RXINT_RCMDSTA(mac->dma_if))
+                        >> PAS_DMA_RXINT_RCMDSTA_DROPS_S;
+        for (i = 0; i < 32; i++)
+                data[1+i] = pasemi_read_mac_reg(mac->dma_if, PAS_MAC_RMON(i));
+}
+
+static void pasemi_mac_get_strings(struct net_device *netdev, u32 stringset,
+                                   u8 *data)
+{
+        memcpy(data, ethtool_stats_keys, sizeof(ethtool_stats_keys));
+}
+
+const struct ethtool_ops pasemi_mac_ethtool_ops = {
+        .get_settings           = pasemi_mac_ethtool_get_settings,
+        .get_drvinfo            = pasemi_mac_ethtool_get_drvinfo,
+        .get_msglevel           = pasemi_mac_ethtool_get_msglevel,
+        .set_msglevel           = pasemi_mac_ethtool_set_msglevel,
+        .get_link               = ethtool_op_get_link,
+        .get_ringparam          = pasemi_mac_ethtool_get_ringparam,
+        .get_strings            = pasemi_mac_get_strings,
+        .get_sset_count         = pasemi_mac_get_sset_count,
+        .get_ethtool_stats      = pasemi_mac_get_ethtool_stats,
+};
+