1 /* 2 * FUJITSU Extended Socket Network Device driver 3 * Copyright (c) 2015 FUJITSU LIMITED 4 * 5 * This program is free software; you can redistribute it and/or modify it 6 * under the terms and conditions of the GNU General Public License, 7 * version 2, as published by the Free Software Foundation. 8 * 9 * This program is distributed in the hope it will be useful, but WITHOUT 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for 12 * more details. 13 * 14 * You should have received a copy of the GNU General Public License along with 15 * this program; if not, see <http://www.gnu.org/licenses/>. 16 * 17 * The full GNU General Public License is included in this distribution in 18 * the file called "COPYING". 19 * 20 */ 21 22 /* ethtool support for fjes */ 23 24 #include <linux/vmalloc.h> 25 #include <linux/netdevice.h> 26 #include <linux/ethtool.h> 27 #include <linux/platform_device.h> 28 29 #include "fjes.h" 30 31 struct fjes_stats { 32 char stat_string[ETH_GSTRING_LEN]; 33 int sizeof_stat; 34 int stat_offset; 35 }; 36 37 #define FJES_STAT(name, stat) { \ 38 .stat_string = name, \ 39 .sizeof_stat = FIELD_SIZEOF(struct fjes_adapter, stat), \ 40 .stat_offset = offsetof(struct fjes_adapter, stat) \ 41 } 42 43 static const struct fjes_stats fjes_gstrings_stats[] = { 44 FJES_STAT("rx_packets", stats64.rx_packets), 45 FJES_STAT("tx_packets", stats64.tx_packets), 46 FJES_STAT("rx_bytes", stats64.rx_bytes), 47 FJES_STAT("tx_bytes", stats64.rx_bytes), 48 FJES_STAT("rx_dropped", stats64.rx_dropped), 49 FJES_STAT("tx_dropped", stats64.tx_dropped), 50 }; 51 52 static void fjes_get_ethtool_stats(struct net_device *netdev, 53 struct ethtool_stats *stats, u64 *data) 54 { 55 struct fjes_adapter *adapter = netdev_priv(netdev); 56 char *p; 57 int i; 58 59 for (i = 0; i < ARRAY_SIZE(fjes_gstrings_stats); i++) { 60 p = (char *)adapter + fjes_gstrings_stats[i].stat_offset; 61 data[i] = (fjes_gstrings_stats[i].sizeof_stat == sizeof(u64)) 62 ? *(u64 *)p : *(u32 *)p; 63 } 64 } 65 66 static void fjes_get_strings(struct net_device *netdev, 67 u32 stringset, u8 *data) 68 { 69 u8 *p = data; 70 int i; 71 72 switch (stringset) { 73 case ETH_SS_STATS: 74 for (i = 0; i < ARRAY_SIZE(fjes_gstrings_stats); i++) { 75 memcpy(p, fjes_gstrings_stats[i].stat_string, 76 ETH_GSTRING_LEN); 77 p += ETH_GSTRING_LEN; 78 } 79 break; 80 } 81 } 82 83 static int fjes_get_sset_count(struct net_device *netdev, int sset) 84 { 85 switch (sset) { 86 case ETH_SS_STATS: 87 return ARRAY_SIZE(fjes_gstrings_stats); 88 default: 89 return -EOPNOTSUPP; 90 } 91 } 92 93 static void fjes_get_drvinfo(struct net_device *netdev, 94 struct ethtool_drvinfo *drvinfo) 95 { 96 struct fjes_adapter *adapter = netdev_priv(netdev); 97 struct platform_device *plat_dev; 98 99 plat_dev = adapter->plat_dev; 100 101 strlcpy(drvinfo->driver, fjes_driver_name, sizeof(drvinfo->driver)); 102 strlcpy(drvinfo->version, fjes_driver_version, 103 sizeof(drvinfo->version)); 104 105 strlcpy(drvinfo->fw_version, "none", sizeof(drvinfo->fw_version)); 106 snprintf(drvinfo->bus_info, sizeof(drvinfo->bus_info), 107 "platform:%s", plat_dev->name); 108 drvinfo->regdump_len = 0; 109 drvinfo->eedump_len = 0; 110 } 111 112 static int fjes_get_settings(struct net_device *netdev, 113 struct ethtool_cmd *ecmd) 114 { 115 ecmd->supported = 0; 116 ecmd->advertising = 0; 117 ecmd->duplex = DUPLEX_FULL; 118 ecmd->autoneg = AUTONEG_DISABLE; 119 ecmd->transceiver = XCVR_DUMMY1; 120 ecmd->port = PORT_NONE; 121 ethtool_cmd_speed_set(ecmd, 20000); /* 20Gb/s */ 122 123 return 0; 124 } 125 126 static const struct ethtool_ops fjes_ethtool_ops = { 127 .get_settings = fjes_get_settings, 128 .get_drvinfo = fjes_get_drvinfo, 129 .get_ethtool_stats = fjes_get_ethtool_stats, 130 .get_strings = fjes_get_strings, 131 .get_sset_count = fjes_get_sset_count, 132 }; 133 134 void fjes_set_ethtool_ops(struct net_device *netdev) 135 { 136 netdev->ethtool_ops = &fjes_ethtool_ops; 137 } 138