drivers/net/ethernet/pasemi/pasemi_mac_ethtool.c

   1 /*
   2  * Copyright (C) 2006-2008 PA Semi, Inc
   3  *
   4  * Ethtool hooks for the PA Semi PWRficient onchip 1G/10G Ethernet MACs
   5  *
   6  * This program is free software; you can redistribute it and/or modify
   7  * it under the terms of the GNU General Public License version 2 as
   8  * published by the Free Software Foundation.
   9  *
  10  * This program is distributed in the hope that it will be useful,
  11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13  * GNU General Public License for more details.
  14  *
  15  * You should have received a copy of the GNU General Public License
  16  * along with this program; if not, see <http://www.gnu.org/licenses/>.
  17  */
  18
  19
  20 #include <linux/netdevice.h>
  21 #include <linux/ethtool.h>
  22 #include <linux/pci.h>
  23
  24 #include <asm/pasemi_dma.h>
  25 #include "pasemi_mac.h"
  26
  27 static struct {
  28         const char str[ETH_GSTRING_LEN];
  29 } ethtool_stats_keys[] = {
  30         { "rx-drops" },
  31         { "rx-bytes" },
  32         { "rx-packets" },
  33         { "rx-broadcast-packets" },
  34         { "rx-multicast-packets" },
  35         { "rx-crc-errors" },
  36         { "rx-undersize-errors" },
  37         { "rx-oversize-errors" },
  38         { "rx-short-fragment-errors" },
  39         { "rx-jabber-errors" },
  40         { "rx-64-byte-packets" },
  41         { "rx-65-127-byte-packets" },
  42         { "rx-128-255-byte-packets" },
  43         { "rx-256-511-byte-packets" },
  44         { "rx-512-1023-byte-packets" },
  45         { "rx-1024-1518-byte-packets" },
  46         { "rx-pause-frames" },
  47         { "tx-bytes" },
  48         { "tx-packets" },
  49         { "tx-broadcast-packets" },
  50         { "tx-multicast-packets" },
  51         { "tx-collisions" },
  52         { "tx-late-collisions" },
  53         { "tx-excessive-collisions" },
  54         { "tx-crc-errors" },
  55         { "tx-undersize-errors" },
  56         { "tx-oversize-errors" },
  57         { "tx-64-byte-packets" },
  58         { "tx-65-127-byte-packets" },
  59         { "tx-128-255-byte-packets" },
  60         { "tx-256-511-byte-packets" },
  61         { "tx-512-1023-byte-packets" },
  62         { "tx-1024-1518-byte-packets" },
  63 };
  64
  65 static int
  66 pasemi_mac_ethtool_get_settings(struct net_device *netdev,
  67                                struct ethtool_cmd *cmd)
  68 {
  69         struct pasemi_mac *mac = netdev_priv(netdev);
  70         struct phy_device *phydev = mac->phydev;
  71
  72         if (!phydev)
  73                 return -EOPNOTSUPP;
  74
  75         return phy_ethtool_gset(phydev, cmd);
  76 }
  77
  78 static int
  79 pasemi_mac_ethtool_set_settings(struct net_device *netdev,
  80                                struct ethtool_cmd *cmd)
  81 {
  82         struct pasemi_mac *mac = netdev_priv(netdev);
  83         struct phy_device *phydev = mac->phydev;
  84
  85         if (!phydev)
  86                 return -EOPNOTSUPP;
  87
  88         return phy_ethtool_sset(phydev, cmd);
  89 }
  90
  91 static u32
  92 pasemi_mac_ethtool_get_msglevel(struct net_device *netdev)
  93 {
  94         struct pasemi_mac *mac = netdev_priv(netdev);
  95         return mac->msg_enable;
  96 }
  97
  98 static void
  99 pasemi_mac_ethtool_set_msglevel(struct net_device *netdev,
 100                                 u32 level)
 101 {
 102         struct pasemi_mac *mac = netdev_priv(netdev);
 103         mac->msg_enable = level;
 104 }
 105
 106
 107 static void
 108 pasemi_mac_ethtool_get_ringparam(struct net_device *netdev,
 109                                  struct ethtool_ringparam *ering)
 110 {
 111         struct pasemi_mac *mac = netdev_priv(netdev);
 112
 113         ering->tx_max_pending = TX_RING_SIZE/2;
 114         ering->tx_pending = RING_USED(mac->tx)/2;
 115         ering->rx_max_pending = RX_RING_SIZE/4;
 116         ering->rx_pending = RING_USED(mac->rx)/4;
 117 }
 118
 119 static int pasemi_mac_get_sset_count(struct net_device *netdev, int sset)
 120 {
 121         switch (sset) {
 122         case ETH_SS_STATS:
 123                 return ARRAY_SIZE(ethtool_stats_keys);
 124         default:
 125                 return -EOPNOTSUPP;
 126         }
 127 }
 128
 129 static void pasemi_mac_get_ethtool_stats(struct net_device *netdev,
 130                 struct ethtool_stats *stats, u64 *data)
 131 {
 132         struct pasemi_mac *mac = netdev_priv(netdev);
 133         int i;
 134
 135         data[0] = pasemi_read_dma_reg(PAS_DMA_RXINT_RCMDSTA(mac->dma_if))
 136                         >> PAS_DMA_RXINT_RCMDSTA_DROPS_S;
 137         for (i = 0; i < 32; i++)
 138                 data[1+i] = pasemi_read_mac_reg(mac->dma_if, PAS_MAC_RMON(i));
 139 }
 140
 141 static void pasemi_mac_get_strings(struct net_device *netdev, u32 stringset,
 142                                    u8 *data)
 143 {
 144         memcpy(data, ethtool_stats_keys, sizeof(ethtool_stats_keys));
 145 }
 146
 147 const struct ethtool_ops pasemi_mac_ethtool_ops = {
 148         .get_settings           = pasemi_mac_ethtool_get_settings,
 149         .set_settings           = pasemi_mac_ethtool_set_settings,
 150         .get_msglevel           = pasemi_mac_ethtool_get_msglevel,
 151         .set_msglevel           = pasemi_mac_ethtool_set_msglevel,
 152         .get_link               = ethtool_op_get_link,
 153         .get_ringparam          = pasemi_mac_ethtool_get_ringparam,
 154         .get_strings            = pasemi_mac_get_strings,
 155         .get_sset_count         = pasemi_mac_get_sset_count,
 156         .get_ethtool_stats      = pasemi_mac_get_ethtool_stats,
 157 };
 158