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_miig_stats); i++) 87 if (!icssg_all_miig_stats[i].standard_stats) 88 ethtool_puts(&p, icssg_all_miig_stats[i].name); 89 for (i = 0; i < ARRAY_SIZE(icssg_all_pa_stats); i++) 90 ethtool_puts(&p, icssg_all_pa_stats[i].name); 91 break; 92 default: 93 break; 94 } 95 } 96 97 static void emac_get_ethtool_stats(struct net_device *ndev, 98 struct ethtool_stats *stats, u64 *data) 99 { 100 struct prueth_emac *emac = netdev_priv(ndev); 101 int i; 102 103 emac_update_hardware_stats(emac); 104 105 for (i = 0; i < ARRAY_SIZE(icssg_all_miig_stats); i++) 106 if (!icssg_all_miig_stats[i].standard_stats) 107 *(data++) = emac->stats[i]; 108 109 for (i = 0; i < ARRAY_SIZE(icssg_all_pa_stats); i++) 110 *(data++) = emac->pa_stats[i]; 111 } 112 113 static int emac_get_ts_info(struct net_device *ndev, 114 struct kernel_ethtool_ts_info *info) 115 { 116 struct prueth_emac *emac = netdev_priv(ndev); 117 118 info->so_timestamping = 119 SOF_TIMESTAMPING_TX_HARDWARE | 120 SOF_TIMESTAMPING_TX_SOFTWARE | 121 SOF_TIMESTAMPING_RX_HARDWARE | 122 SOF_TIMESTAMPING_RX_SOFTWARE | 123 SOF_TIMESTAMPING_SOFTWARE | 124 SOF_TIMESTAMPING_RAW_HARDWARE; 125 126 info->phc_index = icss_iep_get_ptp_clock_idx(emac->iep); 127 info->tx_types = BIT(HWTSTAMP_TX_OFF) | BIT(HWTSTAMP_TX_ON); 128 info->rx_filters = BIT(HWTSTAMP_FILTER_NONE) | BIT(HWTSTAMP_FILTER_ALL); 129 130 return 0; 131 } 132 133 static int emac_set_channels(struct net_device *ndev, 134 struct ethtool_channels *ch) 135 { 136 struct prueth_emac *emac = netdev_priv(ndev); 137 138 /* Check if interface is up. Can change the num queues when 139 * the interface is down. 140 */ 141 if (netif_running(emac->ndev)) 142 return -EBUSY; 143 144 emac->tx_ch_num = ch->tx_count; 145 146 if (emac->is_sr1) 147 emac->tx_ch_num++; 148 149 return 0; 150 } 151 152 static void emac_get_channels(struct net_device *ndev, 153 struct ethtool_channels *ch) 154 { 155 struct prueth_emac *emac = netdev_priv(ndev); 156 157 ch->max_rx = 1; 158 ch->max_tx = PRUETH_MAX_TX_QUEUES; 159 160 /* Disable multiple TX channels due to timeouts 161 * when using more than one queue */ 162 if (emac->is_sr1) 163 ch->max_tx = 1; 164 165 ch->rx_count = 1; 166 ch->tx_count = emac->tx_ch_num; 167 168 if (emac->is_sr1) 169 ch->tx_count--; 170 } 171 172 static const struct ethtool_rmon_hist_range emac_rmon_ranges[] = { 173 { 0, 64}, 174 { 65, 128}, 175 { 129, 256}, 176 { 257, 512}, 177 { 513, PRUETH_MAX_PKT_SIZE}, 178 {} 179 }; 180 181 static void emac_get_rmon_stats(struct net_device *ndev, 182 struct ethtool_rmon_stats *rmon_stats, 183 const struct ethtool_rmon_hist_range **ranges) 184 { 185 struct prueth_emac *emac = netdev_priv(ndev); 186 187 *ranges = emac_rmon_ranges; 188 189 rmon_stats->undersize_pkts = emac_get_stat_by_name(emac, "rx_bucket1_frames") - 190 emac_get_stat_by_name(emac, "rx_64B_frames"); 191 192 rmon_stats->hist[0] = emac_get_stat_by_name(emac, "rx_bucket1_frames"); 193 rmon_stats->hist[1] = emac_get_stat_by_name(emac, "rx_bucket2_frames"); 194 rmon_stats->hist[2] = emac_get_stat_by_name(emac, "rx_bucket3_frames"); 195 rmon_stats->hist[3] = emac_get_stat_by_name(emac, "rx_bucket4_frames"); 196 rmon_stats->hist[4] = emac_get_stat_by_name(emac, "rx_bucket5_frames"); 197 198 rmon_stats->hist_tx[0] = emac_get_stat_by_name(emac, "tx_bucket1_frames"); 199 rmon_stats->hist_tx[1] = emac_get_stat_by_name(emac, "tx_bucket2_frames"); 200 rmon_stats->hist_tx[2] = emac_get_stat_by_name(emac, "tx_bucket3_frames"); 201 rmon_stats->hist_tx[3] = emac_get_stat_by_name(emac, "tx_bucket4_frames"); 202 rmon_stats->hist_tx[4] = emac_get_stat_by_name(emac, "tx_bucket5_frames"); 203 } 204 205 static int emac_get_coalesce(struct net_device *ndev, 206 struct ethtool_coalesce *coal, 207 struct kernel_ethtool_coalesce *kernel_coal, 208 struct netlink_ext_ack *extack) 209 { 210 struct prueth_emac *emac = netdev_priv(ndev); 211 struct prueth_tx_chn *tx_chn; 212 213 tx_chn = &emac->tx_chns[0]; 214 215 coal->rx_coalesce_usecs = emac->rx_pace_timeout_ns / 1000; 216 coal->tx_coalesce_usecs = tx_chn->tx_pace_timeout_ns / 1000; 217 218 return 0; 219 } 220 221 static int emac_get_per_queue_coalesce(struct net_device *ndev, u32 queue, 222 struct ethtool_coalesce *coal) 223 { 224 struct prueth_emac *emac = netdev_priv(ndev); 225 struct prueth_tx_chn *tx_chn; 226 227 if (queue >= PRUETH_MAX_TX_QUEUES) 228 return -EINVAL; 229 230 tx_chn = &emac->tx_chns[queue]; 231 232 coal->tx_coalesce_usecs = tx_chn->tx_pace_timeout_ns / 1000; 233 234 return 0; 235 } 236 237 static int emac_set_coalesce(struct net_device *ndev, 238 struct ethtool_coalesce *coal, 239 struct kernel_ethtool_coalesce *kernel_coal, 240 struct netlink_ext_ack *extack) 241 { 242 struct prueth_emac *emac = netdev_priv(ndev); 243 struct prueth *prueth = emac->prueth; 244 struct prueth_tx_chn *tx_chn; 245 246 tx_chn = &emac->tx_chns[0]; 247 248 if (coal->rx_coalesce_usecs && 249 coal->rx_coalesce_usecs < ICSSG_MIN_COALESCE_USECS) { 250 dev_info(prueth->dev, "defaulting to min value of %dus for rx-usecs\n", 251 ICSSG_MIN_COALESCE_USECS); 252 coal->rx_coalesce_usecs = ICSSG_MIN_COALESCE_USECS; 253 } 254 255 if (coal->tx_coalesce_usecs && 256 coal->tx_coalesce_usecs < ICSSG_MIN_COALESCE_USECS) { 257 dev_info(prueth->dev, "defaulting to min value of %dus for tx-usecs\n", 258 ICSSG_MIN_COALESCE_USECS); 259 coal->tx_coalesce_usecs = ICSSG_MIN_COALESCE_USECS; 260 } 261 262 emac->rx_pace_timeout_ns = coal->rx_coalesce_usecs * 1000; 263 tx_chn->tx_pace_timeout_ns = coal->tx_coalesce_usecs * 1000; 264 265 return 0; 266 } 267 268 static int emac_set_per_queue_coalesce(struct net_device *ndev, u32 queue, 269 struct ethtool_coalesce *coal) 270 { 271 struct prueth_emac *emac = netdev_priv(ndev); 272 struct prueth *prueth = emac->prueth; 273 struct prueth_tx_chn *tx_chn; 274 275 if (queue >= PRUETH_MAX_TX_QUEUES) 276 return -EINVAL; 277 278 tx_chn = &emac->tx_chns[queue]; 279 280 if (coal->tx_coalesce_usecs && 281 coal->tx_coalesce_usecs < ICSSG_MIN_COALESCE_USECS) { 282 dev_info(prueth->dev, "defaulting to min value of %dus for tx-usecs for tx-%u\n", 283 ICSSG_MIN_COALESCE_USECS, queue); 284 coal->tx_coalesce_usecs = ICSSG_MIN_COALESCE_USECS; 285 } 286 287 tx_chn->tx_pace_timeout_ns = coal->tx_coalesce_usecs * 1000; 288 289 return 0; 290 } 291 292 const struct ethtool_ops icssg_ethtool_ops = { 293 .get_drvinfo = emac_get_drvinfo, 294 .get_msglevel = emac_get_msglevel, 295 .set_msglevel = emac_set_msglevel, 296 .get_sset_count = emac_get_sset_count, 297 .get_ethtool_stats = emac_get_ethtool_stats, 298 .get_strings = emac_get_strings, 299 .get_ts_info = emac_get_ts_info, 300 .supported_coalesce_params = ETHTOOL_COALESCE_RX_USECS | 301 ETHTOOL_COALESCE_TX_USECS, 302 .get_coalesce = emac_get_coalesce, 303 .set_coalesce = emac_set_coalesce, 304 .get_per_queue_coalesce = emac_get_per_queue_coalesce, 305 .set_per_queue_coalesce = emac_set_per_queue_coalesce, 306 .get_channels = emac_get_channels, 307 .set_channels = emac_set_channels, 308 .get_link_ksettings = emac_get_link_ksettings, 309 .set_link_ksettings = emac_set_link_ksettings, 310 .get_link = ethtool_op_get_link, 311 .get_eee = emac_get_eee, 312 .set_eee = emac_set_eee, 313 .nway_reset = emac_nway_reset, 314 .get_rmon_stats = emac_get_rmon_stats, 315 }; 316 EXPORT_SYMBOL_GPL(icssg_ethtool_ops); 317