1 // SPDX-License-Identifier: GPL-2.0 2 /* Texas Instruments ICSSG Ethernet driver 3 * 4 * Copyright (C) 2018-2022 Texas Instruments Incorporated - https://www.ti.com/ 5 * 6 */ 7 8 #include "icssg_prueth.h" 9 #include "icssg_stats.h" 10 11 static void emac_get_drvinfo(struct net_device *ndev, 12 struct ethtool_drvinfo *info) 13 { 14 struct prueth_emac *emac = netdev_priv(ndev); 15 struct prueth *prueth = emac->prueth; 16 17 strscpy(info->driver, dev_driver_string(prueth->dev), 18 sizeof(info->driver)); 19 strscpy(info->bus_info, dev_name(prueth->dev), sizeof(info->bus_info)); 20 } 21 22 static u32 emac_get_msglevel(struct net_device *ndev) 23 { 24 struct prueth_emac *emac = netdev_priv(ndev); 25 26 return emac->msg_enable; 27 } 28 29 static void emac_set_msglevel(struct net_device *ndev, u32 value) 30 { 31 struct prueth_emac *emac = netdev_priv(ndev); 32 33 emac->msg_enable = value; 34 } 35 36 static int emac_get_link_ksettings(struct net_device *ndev, 37 struct ethtool_link_ksettings *ecmd) 38 { 39 return phy_ethtool_get_link_ksettings(ndev, ecmd); 40 } 41 42 static int emac_set_link_ksettings(struct net_device *ndev, 43 const struct ethtool_link_ksettings *ecmd) 44 { 45 return phy_ethtool_set_link_ksettings(ndev, ecmd); 46 } 47 48 static int emac_get_eee(struct net_device *ndev, struct ethtool_keee *edata) 49 { 50 if (!ndev->phydev) 51 return -EOPNOTSUPP; 52 53 return phy_ethtool_get_eee(ndev->phydev, edata); 54 } 55 56 static int emac_set_eee(struct net_device *ndev, struct ethtool_keee *edata) 57 { 58 if (!ndev->phydev) 59 return -EOPNOTSUPP; 60 61 return phy_ethtool_set_eee(ndev->phydev, edata); 62 } 63 64 static int emac_nway_reset(struct net_device *ndev) 65 { 66 return phy_ethtool_nway_reset(ndev); 67 } 68 69 static int emac_get_sset_count(struct net_device *ndev, int stringset) 70 { 71 switch (stringset) { 72 case ETH_SS_STATS: 73 return ICSSG_NUM_ETHTOOL_STATS; 74 default: 75 return -EOPNOTSUPP; 76 } 77 } 78 79 static void emac_get_strings(struct net_device *ndev, u32 stringset, u8 *data) 80 { 81 u8 *p = data; 82 int i; 83 84 switch (stringset) { 85 case ETH_SS_STATS: 86 for (i = 0; i < ARRAY_SIZE(icssg_all_stats); i++) { 87 if (!icssg_all_stats[i].standard_stats) { 88 memcpy(p, icssg_all_stats[i].name, 89 ETH_GSTRING_LEN); 90 p += ETH_GSTRING_LEN; 91 } 92 } 93 break; 94 default: 95 break; 96 } 97 } 98 99 static void emac_get_ethtool_stats(struct net_device *ndev, 100 struct ethtool_stats *stats, u64 *data) 101 { 102 struct prueth_emac *emac = netdev_priv(ndev); 103 int i; 104 105 emac_update_hardware_stats(emac); 106 107 for (i = 0; i < ARRAY_SIZE(icssg_all_stats); i++) 108 if (!icssg_all_stats[i].standard_stats) 109 *(data++) = emac->stats[i]; 110 } 111 112 static int emac_get_ts_info(struct net_device *ndev, 113 struct ethtool_ts_info *info) 114 { 115 struct prueth_emac *emac = netdev_priv(ndev); 116 117 info->so_timestamping = 118 SOF_TIMESTAMPING_TX_HARDWARE | 119 SOF_TIMESTAMPING_TX_SOFTWARE | 120 SOF_TIMESTAMPING_RX_HARDWARE | 121 SOF_TIMESTAMPING_RX_SOFTWARE | 122 SOF_TIMESTAMPING_SOFTWARE | 123 SOF_TIMESTAMPING_RAW_HARDWARE; 124 125 info->phc_index = icss_iep_get_ptp_clock_idx(emac->iep); 126 info->tx_types = BIT(HWTSTAMP_TX_OFF) | BIT(HWTSTAMP_TX_ON); 127 info->rx_filters = BIT(HWTSTAMP_FILTER_NONE) | BIT(HWTSTAMP_FILTER_ALL); 128 129 return 0; 130 } 131 132 static int emac_set_channels(struct net_device *ndev, 133 struct ethtool_channels *ch) 134 { 135 struct prueth_emac *emac = netdev_priv(ndev); 136 137 /* Check if interface is up. Can change the num queues when 138 * the interface is down. 139 */ 140 if (netif_running(emac->ndev)) 141 return -EBUSY; 142 143 emac->tx_ch_num = ch->tx_count; 144 145 if (emac->is_sr1) 146 emac->tx_ch_num++; 147 148 return 0; 149 } 150 151 static void emac_get_channels(struct net_device *ndev, 152 struct ethtool_channels *ch) 153 { 154 struct prueth_emac *emac = netdev_priv(ndev); 155 156 ch->max_rx = 1; 157 ch->max_tx = PRUETH_MAX_TX_QUEUES; 158 159 /* Disable multiple TX channels due to timeouts 160 * when using more than one queue */ 161 if (emac->is_sr1) 162 ch->max_tx = 1; 163 164 ch->rx_count = 1; 165 ch->tx_count = emac->tx_ch_num; 166 167 if (emac->is_sr1) 168 ch->tx_count--; 169 } 170 171 static const struct ethtool_rmon_hist_range emac_rmon_ranges[] = { 172 { 0, 64}, 173 { 65, 128}, 174 { 129, 256}, 175 { 257, 512}, 176 { 513, PRUETH_MAX_PKT_SIZE}, 177 {} 178 }; 179 180 static void emac_get_rmon_stats(struct net_device *ndev, 181 struct ethtool_rmon_stats *rmon_stats, 182 const struct ethtool_rmon_hist_range **ranges) 183 { 184 struct prueth_emac *emac = netdev_priv(ndev); 185 186 *ranges = emac_rmon_ranges; 187 188 rmon_stats->undersize_pkts = emac_get_stat_by_name(emac, "rx_bucket1_frames") - 189 emac_get_stat_by_name(emac, "rx_64B_frames"); 190 191 rmon_stats->hist[0] = emac_get_stat_by_name(emac, "rx_bucket1_frames"); 192 rmon_stats->hist[1] = emac_get_stat_by_name(emac, "rx_bucket2_frames"); 193 rmon_stats->hist[2] = emac_get_stat_by_name(emac, "rx_bucket3_frames"); 194 rmon_stats->hist[3] = emac_get_stat_by_name(emac, "rx_bucket4_frames"); 195 rmon_stats->hist[4] = emac_get_stat_by_name(emac, "rx_bucket5_frames"); 196 197 rmon_stats->hist_tx[0] = emac_get_stat_by_name(emac, "tx_bucket1_frames"); 198 rmon_stats->hist_tx[1] = emac_get_stat_by_name(emac, "tx_bucket2_frames"); 199 rmon_stats->hist_tx[2] = emac_get_stat_by_name(emac, "tx_bucket3_frames"); 200 rmon_stats->hist_tx[3] = emac_get_stat_by_name(emac, "tx_bucket4_frames"); 201 rmon_stats->hist_tx[4] = emac_get_stat_by_name(emac, "tx_bucket5_frames"); 202 } 203 204 static int emac_get_coalesce(struct net_device *ndev, 205 struct ethtool_coalesce *coal, 206 struct kernel_ethtool_coalesce *kernel_coal, 207 struct netlink_ext_ack *extack) 208 { 209 struct prueth_emac *emac = netdev_priv(ndev); 210 struct prueth_tx_chn *tx_chn; 211 212 tx_chn = &emac->tx_chns[0]; 213 214 coal->rx_coalesce_usecs = emac->rx_pace_timeout_ns / 1000; 215 coal->tx_coalesce_usecs = tx_chn->tx_pace_timeout_ns / 1000; 216 217 return 0; 218 } 219 220 static int emac_get_per_queue_coalesce(struct net_device *ndev, u32 queue, 221 struct ethtool_coalesce *coal) 222 { 223 struct prueth_emac *emac = netdev_priv(ndev); 224 struct prueth_tx_chn *tx_chn; 225 226 if (queue >= PRUETH_MAX_TX_QUEUES) 227 return -EINVAL; 228 229 tx_chn = &emac->tx_chns[queue]; 230 231 coal->tx_coalesce_usecs = tx_chn->tx_pace_timeout_ns / 1000; 232 233 return 0; 234 } 235 236 static int emac_set_coalesce(struct net_device *ndev, 237 struct ethtool_coalesce *coal, 238 struct kernel_ethtool_coalesce *kernel_coal, 239 struct netlink_ext_ack *extack) 240 { 241 struct prueth_emac *emac = netdev_priv(ndev); 242 struct prueth *prueth = emac->prueth; 243 struct prueth_tx_chn *tx_chn; 244 245 tx_chn = &emac->tx_chns[0]; 246 247 if (coal->rx_coalesce_usecs && 248 coal->rx_coalesce_usecs < ICSSG_MIN_COALESCE_USECS) { 249 dev_info(prueth->dev, "defaulting to min value of %dus for rx-usecs\n", 250 ICSSG_MIN_COALESCE_USECS); 251 coal->rx_coalesce_usecs = ICSSG_MIN_COALESCE_USECS; 252 } 253 254 if (coal->tx_coalesce_usecs && 255 coal->tx_coalesce_usecs < ICSSG_MIN_COALESCE_USECS) { 256 dev_info(prueth->dev, "defaulting to min value of %dus for tx-usecs\n", 257 ICSSG_MIN_COALESCE_USECS); 258 coal->tx_coalesce_usecs = ICSSG_MIN_COALESCE_USECS; 259 } 260 261 emac->rx_pace_timeout_ns = coal->rx_coalesce_usecs * 1000; 262 tx_chn->tx_pace_timeout_ns = coal->tx_coalesce_usecs * 1000; 263 264 return 0; 265 } 266 267 static int emac_set_per_queue_coalesce(struct net_device *ndev, u32 queue, 268 struct ethtool_coalesce *coal) 269 { 270 struct prueth_emac *emac = netdev_priv(ndev); 271 struct prueth *prueth = emac->prueth; 272 struct prueth_tx_chn *tx_chn; 273 274 if (queue >= PRUETH_MAX_TX_QUEUES) 275 return -EINVAL; 276 277 tx_chn = &emac->tx_chns[queue]; 278 279 if (coal->tx_coalesce_usecs && 280 coal->tx_coalesce_usecs < ICSSG_MIN_COALESCE_USECS) { 281 dev_info(prueth->dev, "defaulting to min value of %dus for tx-usecs for tx-%u\n", 282 ICSSG_MIN_COALESCE_USECS, queue); 283 coal->tx_coalesce_usecs = ICSSG_MIN_COALESCE_USECS; 284 } 285 286 tx_chn->tx_pace_timeout_ns = coal->tx_coalesce_usecs * 1000; 287 288 return 0; 289 } 290 291 const struct ethtool_ops icssg_ethtool_ops = { 292 .get_drvinfo = emac_get_drvinfo, 293 .get_msglevel = emac_get_msglevel, 294 .set_msglevel = emac_set_msglevel, 295 .get_sset_count = emac_get_sset_count, 296 .get_ethtool_stats = emac_get_ethtool_stats, 297 .get_strings = emac_get_strings, 298 .get_ts_info = emac_get_ts_info, 299 .supported_coalesce_params = ETHTOOL_COALESCE_RX_USECS | 300 ETHTOOL_COALESCE_TX_USECS, 301 .get_coalesce = emac_get_coalesce, 302 .set_coalesce = emac_set_coalesce, 303 .get_per_queue_coalesce = emac_get_per_queue_coalesce, 304 .set_per_queue_coalesce = emac_set_per_queue_coalesce, 305 .get_channels = emac_get_channels, 306 .set_channels = emac_set_channels, 307 .get_link_ksettings = emac_get_link_ksettings, 308 .set_link_ksettings = emac_set_link_ksettings, 309 .get_link = ethtool_op_get_link, 310 .get_eee = emac_get_eee, 311 .set_eee = emac_set_eee, 312 .nway_reset = emac_nway_reset, 313 .get_rmon_stats = emac_get_rmon_stats, 314 }; 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