drivers/net/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, write to the Free Software
  17  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
  18  */
  19
  20
  21 #include <linux/netdevice.h>
  22 #include <linux/ethtool.h>
  23 #include <linux/pci.h>
  24 #include <linux/inet_lro.h>
  25
  26 #include <asm/pasemi_dma.h>
  27 #include "pasemi_mac.h"
  28
  29 static struct {
  30         const char str[ETH_GSTRING_LEN];
  31 } ethtool_stats_keys[] = {
  32         { "rx-drops" },
  33         { "rx-bytes" },
  34         { "rx-packets" },
  35         { "rx-broadcast-packets" },
  36         { "rx-multicast-packets" },
  37         { "rx-crc-errors" },
  38         { "rx-undersize-errors" },
  39         { "rx-oversize-errors" },
  40         { "rx-short-fragment-errors" },
  41         { "rx-jabber-errors" },
  42         { "rx-64-byte-packets" },
  43         { "rx-65-127-byte-packets" },
  44         { "rx-128-255-byte-packets" },
  45         { "rx-256-511-byte-packets" },
  46         { "rx-512-1023-byte-packets" },
  47         { "rx-1024-1518-byte-packets" },
  48         { "rx-pause-frames" },
  49         { "tx-bytes" },
  50         { "tx-packets" },
  51         { "tx-broadcast-packets" },
  52         { "tx-multicast-packets" },
  53         { "tx-collisions" },
  54         { "tx-late-collisions" },
  55         { "tx-excessive-collisions" },
  56         { "tx-crc-errors" },
  57         { "tx-undersize-errors" },
  58         { "tx-oversize-errors" },
  59         { "tx-64-byte-packets" },
  60         { "tx-65-127-byte-packets" },
  61         { "tx-128-255-byte-packets" },
  62         { "tx-256-511-byte-packets" },
  63         { "tx-512-1023-byte-packets" },
  64         { "tx-1024-1518-byte-packets" },
  65 };
  66
  67 static int
  68 pasemi_mac_ethtool_get_settings(struct net_device *netdev,
  69                                struct ethtool_cmd *cmd)
  70 {
  71         struct pasemi_mac *mac = netdev_priv(netdev);
  72         struct phy_device *phydev = mac->phydev;
  73
  74         if (!phydev)
  75                 return -EOPNOTSUPP;
  76
  77         return phy_ethtool_gset(phydev, cmd);
  78 }
  79
  80 static void
  81 pasemi_mac_ethtool_get_drvinfo(struct net_device *netdev,
  82                                struct ethtool_drvinfo *drvinfo)
  83 {
  84         struct pasemi_mac *mac;
  85         mac = netdev_priv(netdev);
  86
  87         /* clear and fill out info */
  88         memset(drvinfo, 0, sizeof(struct ethtool_drvinfo));
  89         strncpy(drvinfo->driver, "pasemi_mac", 12);
  90         strcpy(drvinfo->version, "N/A");
  91         strcpy(drvinfo->fw_version, "N/A");
  92         strncpy(drvinfo->bus_info, pci_name(mac->pdev), 32);
  93 }
  94
  95 static u32
  96 pasemi_mac_ethtool_get_msglevel(struct net_device *netdev)
  97 {
  98         struct pasemi_mac *mac = netdev_priv(netdev);
  99         return mac->msg_enable;
 100 }
 101
 102 static void
 103 pasemi_mac_ethtool_set_msglevel(struct net_device *netdev,
 104                                 u32 level)
 105 {
 106         struct pasemi_mac *mac = netdev_priv(netdev);
 107         mac->msg_enable = level;
 108 }
 109
 110
 111 static void
 112 pasemi_mac_ethtool_get_ringparam(struct net_device *netdev,
 113                                  struct ethtool_ringparam *ering)
 114 {
 115         struct pasemi_mac *mac = netdev_priv(netdev);
 116
 117         ering->tx_max_pending = TX_RING_SIZE/2;
 118         ering->tx_pending = RING_USED(mac->tx)/2;
 119         ering->rx_max_pending = RX_RING_SIZE/4;
 120         ering->rx_pending = RING_USED(mac->rx)/4;
 121 }
 122
 123 static int pasemi_mac_get_sset_count(struct net_device *netdev, int sset)
 124 {
 125         switch (sset) {
 126         case ETH_SS_STATS:
 127                 return ARRAY_SIZE(ethtool_stats_keys);
 128         default:
 129                 return -EOPNOTSUPP;
 130         }
 131 }
 132
 133 static void pasemi_mac_get_ethtool_stats(struct net_device *netdev,
 134                 struct ethtool_stats *stats, u64 *data)
 135 {
 136         struct pasemi_mac *mac = netdev_priv(netdev);
 137         int i;
 138
 139         data[0] = pasemi_read_dma_reg(PAS_DMA_RXINT_RCMDSTA(mac->dma_if))
 140                         >> PAS_DMA_RXINT_RCMDSTA_DROPS_S;
 141         for (i = 0; i < 32; i++)
 142                 data[1+i] = pasemi_read_mac_reg(mac->dma_if, PAS_MAC_RMON(i));
 143 }
 144
 145 static void pasemi_mac_get_strings(struct net_device *netdev, u32 stringset,
 146                                    u8 *data)
 147 {
 148         memcpy(data, ethtool_stats_keys, sizeof(ethtool_stats_keys));
 149 }
 150
 151 const struct ethtool_ops pasemi_mac_ethtool_ops = {
 152         .get_settings           = pasemi_mac_ethtool_get_settings,
 153         .get_drvinfo            = pasemi_mac_ethtool_get_drvinfo,
 154         .get_msglevel           = pasemi_mac_ethtool_get_msglevel,
 155         .set_msglevel           = pasemi_mac_ethtool_set_msglevel,
 156         .get_link               = ethtool_op_get_link,
 157         .get_ringparam          = pasemi_mac_ethtool_get_ringparam,
 158         .get_strings            = pasemi_mac_get_strings,
 159         .get_sset_count         = pasemi_mac_get_sset_count,
 160         .get_ethtool_stats      = pasemi_mac_get_ethtool_stats,
 161 };
 162