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