1 // SPDX-License-Identifier: GPL-2.0 2 /* 3 * Copyright IBM Corp. 2018 4 */ 5 6 #define KMSG_COMPONENT "qeth" 7 #define pr_fmt(fmt) KMSG_COMPONENT ": " fmt 8 9 #include <linux/ethtool.h> 10 #include "qeth_core.h" 11 12 13 #define QETH_TXQ_STAT(_name, _stat) { \ 14 .name = _name, \ 15 .offset = offsetof(struct qeth_out_q_stats, _stat) \ 16 } 17 18 #define QETH_CARD_STAT(_name, _stat) { \ 19 .name = _name, \ 20 .offset = offsetof(struct qeth_card_stats, _stat) \ 21 } 22 23 struct qeth_stats { 24 char name[ETH_GSTRING_LEN]; 25 unsigned int offset; 26 }; 27 28 static const struct qeth_stats txq_stats[] = { 29 QETH_TXQ_STAT("IO buffers", bufs), 30 QETH_TXQ_STAT("IO buffer elements", buf_elements), 31 QETH_TXQ_STAT("packed IO buffers", bufs_pack), 32 QETH_TXQ_STAT("skbs", tx_packets), 33 QETH_TXQ_STAT("packed skbs", skbs_pack), 34 QETH_TXQ_STAT("SG skbs", skbs_sg), 35 QETH_TXQ_STAT("HW csum skbs", skbs_csum), 36 QETH_TXQ_STAT("TSO skbs", skbs_tso), 37 QETH_TXQ_STAT("linearized skbs", skbs_linearized), 38 QETH_TXQ_STAT("linearized+error skbs", skbs_linearized_fail), 39 QETH_TXQ_STAT("TSO bytes", tso_bytes), 40 QETH_TXQ_STAT("Packing mode switches", packing_mode_switch), 41 QETH_TXQ_STAT("Queue stopped", stopped), 42 QETH_TXQ_STAT("Completion yield", completion_yield), 43 QETH_TXQ_STAT("Completion timer", completion_timer), 44 }; 45 46 static const struct qeth_stats card_stats[] = { 47 QETH_CARD_STAT("rx0 IO buffers", rx_bufs), 48 QETH_CARD_STAT("rx0 HW csum skbs", rx_skb_csum), 49 QETH_CARD_STAT("rx0 SG skbs", rx_sg_skbs), 50 QETH_CARD_STAT("rx0 SG page frags", rx_sg_frags), 51 QETH_CARD_STAT("rx0 SG page allocs", rx_sg_alloc_page), 52 QETH_CARD_STAT("rx0 dropped, no memory", rx_dropped_nomem), 53 QETH_CARD_STAT("rx0 dropped, bad format", rx_dropped_notsupp), 54 QETH_CARD_STAT("rx0 dropped, runt", rx_dropped_runt), 55 }; 56 57 #define TXQ_STATS_LEN ARRAY_SIZE(txq_stats) 58 #define CARD_STATS_LEN ARRAY_SIZE(card_stats) 59 60 static void qeth_add_stat_data(u64 **dst, void *src, 61 const struct qeth_stats stats[], 62 unsigned int size) 63 { 64 unsigned int i; 65 char *stat; 66 67 for (i = 0; i < size; i++) { 68 stat = (char *)src + stats[i].offset; 69 **dst = *(u64 *)stat; 70 (*dst)++; 71 } 72 } 73 74 static void qeth_add_stat_strings(u8 **data, const char *prefix, 75 const struct qeth_stats stats[], 76 unsigned int size) 77 { 78 unsigned int i; 79 80 for (i = 0; i < size; i++) { 81 snprintf(*data, ETH_GSTRING_LEN, "%s%s", prefix, stats[i].name); 82 *data += ETH_GSTRING_LEN; 83 } 84 } 85 86 static int qeth_get_sset_count(struct net_device *dev, int stringset) 87 { 88 struct qeth_card *card = dev->ml_priv; 89 90 switch (stringset) { 91 case ETH_SS_STATS: 92 return CARD_STATS_LEN + 93 card->qdio.no_out_queues * TXQ_STATS_LEN; 94 default: 95 return -EINVAL; 96 } 97 } 98 99 static void qeth_get_ethtool_stats(struct net_device *dev, 100 struct ethtool_stats *stats, u64 *data) 101 { 102 struct qeth_card *card = dev->ml_priv; 103 unsigned int i; 104 105 qeth_add_stat_data(&data, &card->stats, card_stats, CARD_STATS_LEN); 106 for (i = 0; i < card->qdio.no_out_queues; i++) 107 qeth_add_stat_data(&data, &card->qdio.out_qs[i]->stats, 108 txq_stats, TXQ_STATS_LEN); 109 } 110 111 static void qeth_get_ringparam(struct net_device *dev, 112 struct ethtool_ringparam *param) 113 { 114 struct qeth_card *card = dev->ml_priv; 115 116 param->rx_max_pending = QDIO_MAX_BUFFERS_PER_Q; 117 param->rx_mini_max_pending = 0; 118 param->rx_jumbo_max_pending = 0; 119 param->tx_max_pending = QDIO_MAX_BUFFERS_PER_Q; 120 121 param->rx_pending = card->qdio.in_buf_pool.buf_count; 122 param->rx_mini_pending = 0; 123 param->rx_jumbo_pending = 0; 124 param->tx_pending = QDIO_MAX_BUFFERS_PER_Q; 125 } 126 127 static void qeth_get_strings(struct net_device *dev, u32 stringset, u8 *data) 128 { 129 struct qeth_card *card = dev->ml_priv; 130 char prefix[ETH_GSTRING_LEN] = ""; 131 unsigned int i; 132 133 switch (stringset) { 134 case ETH_SS_STATS: 135 qeth_add_stat_strings(&data, prefix, card_stats, 136 CARD_STATS_LEN); 137 for (i = 0; i < card->qdio.no_out_queues; i++) { 138 snprintf(prefix, ETH_GSTRING_LEN, "tx%u ", i); 139 qeth_add_stat_strings(&data, prefix, txq_stats, 140 TXQ_STATS_LEN); 141 } 142 break; 143 default: 144 WARN_ON(1); 145 break; 146 } 147 } 148 149 static void qeth_get_drvinfo(struct net_device *dev, 150 struct ethtool_drvinfo *info) 151 { 152 struct qeth_card *card = dev->ml_priv; 153 154 strlcpy(info->driver, IS_LAYER2(card) ? "qeth_l2" : "qeth_l3", 155 sizeof(info->driver)); 156 strlcpy(info->version, "1.0", sizeof(info->version)); 157 strlcpy(info->fw_version, card->info.mcl_level, 158 sizeof(info->fw_version)); 159 snprintf(info->bus_info, sizeof(info->bus_info), "%s/%s/%s", 160 CARD_RDEV_ID(card), CARD_WDEV_ID(card), CARD_DDEV_ID(card)); 161 } 162 163 static void qeth_get_channels(struct net_device *dev, 164 struct ethtool_channels *channels) 165 { 166 struct qeth_card *card = dev->ml_priv; 167 168 channels->max_rx = dev->num_rx_queues; 169 channels->max_tx = card->qdio.no_out_queues; 170 channels->max_other = 0; 171 channels->max_combined = 0; 172 channels->rx_count = dev->real_num_rx_queues; 173 channels->tx_count = dev->real_num_tx_queues; 174 channels->other_count = 0; 175 channels->combined_count = 0; 176 } 177 178 /* Helper function to fill 'advertising' and 'supported' which are the same. */ 179 /* Autoneg and full-duplex are supported and advertised unconditionally. */ 180 /* Always advertise and support all speeds up to specified, and only one */ 181 /* specified port type. */ 182 static void qeth_set_cmd_adv_sup(struct ethtool_link_ksettings *cmd, 183 int maxspeed, int porttype) 184 { 185 ethtool_link_ksettings_zero_link_mode(cmd, supported); 186 ethtool_link_ksettings_zero_link_mode(cmd, advertising); 187 ethtool_link_ksettings_zero_link_mode(cmd, lp_advertising); 188 189 ethtool_link_ksettings_add_link_mode(cmd, supported, Autoneg); 190 ethtool_link_ksettings_add_link_mode(cmd, advertising, Autoneg); 191 192 switch (porttype) { 193 case PORT_TP: 194 ethtool_link_ksettings_add_link_mode(cmd, supported, TP); 195 ethtool_link_ksettings_add_link_mode(cmd, advertising, TP); 196 break; 197 case PORT_FIBRE: 198 ethtool_link_ksettings_add_link_mode(cmd, supported, FIBRE); 199 ethtool_link_ksettings_add_link_mode(cmd, advertising, FIBRE); 200 break; 201 default: 202 ethtool_link_ksettings_add_link_mode(cmd, supported, TP); 203 ethtool_link_ksettings_add_link_mode(cmd, advertising, TP); 204 WARN_ON_ONCE(1); 205 } 206 207 /* partially does fall through, to also select lower speeds */ 208 switch (maxspeed) { 209 case SPEED_25000: 210 ethtool_link_ksettings_add_link_mode(cmd, supported, 211 25000baseSR_Full); 212 ethtool_link_ksettings_add_link_mode(cmd, advertising, 213 25000baseSR_Full); 214 break; 215 case SPEED_10000: 216 ethtool_link_ksettings_add_link_mode(cmd, supported, 217 10000baseT_Full); 218 ethtool_link_ksettings_add_link_mode(cmd, advertising, 219 10000baseT_Full); 220 /* fall through */ 221 case SPEED_1000: 222 ethtool_link_ksettings_add_link_mode(cmd, supported, 223 1000baseT_Full); 224 ethtool_link_ksettings_add_link_mode(cmd, advertising, 225 1000baseT_Full); 226 ethtool_link_ksettings_add_link_mode(cmd, supported, 227 1000baseT_Half); 228 ethtool_link_ksettings_add_link_mode(cmd, advertising, 229 1000baseT_Half); 230 /* fall through */ 231 case SPEED_100: 232 ethtool_link_ksettings_add_link_mode(cmd, supported, 233 100baseT_Full); 234 ethtool_link_ksettings_add_link_mode(cmd, advertising, 235 100baseT_Full); 236 ethtool_link_ksettings_add_link_mode(cmd, supported, 237 100baseT_Half); 238 ethtool_link_ksettings_add_link_mode(cmd, advertising, 239 100baseT_Half); 240 /* fall through */ 241 case SPEED_10: 242 ethtool_link_ksettings_add_link_mode(cmd, supported, 243 10baseT_Full); 244 ethtool_link_ksettings_add_link_mode(cmd, advertising, 245 10baseT_Full); 246 ethtool_link_ksettings_add_link_mode(cmd, supported, 247 10baseT_Half); 248 ethtool_link_ksettings_add_link_mode(cmd, advertising, 249 10baseT_Half); 250 break; 251 default: 252 ethtool_link_ksettings_add_link_mode(cmd, supported, 253 10baseT_Full); 254 ethtool_link_ksettings_add_link_mode(cmd, advertising, 255 10baseT_Full); 256 ethtool_link_ksettings_add_link_mode(cmd, supported, 257 10baseT_Half); 258 ethtool_link_ksettings_add_link_mode(cmd, advertising, 259 10baseT_Half); 260 WARN_ON_ONCE(1); 261 } 262 } 263 264 265 static int qeth_get_link_ksettings(struct net_device *netdev, 266 struct ethtool_link_ksettings *cmd) 267 { 268 struct qeth_card *card = netdev->ml_priv; 269 enum qeth_link_types link_type; 270 struct carrier_info carrier_info; 271 int rc; 272 273 if (IS_IQD(card) || IS_VM_NIC(card)) 274 link_type = QETH_LINK_TYPE_10GBIT_ETH; 275 else 276 link_type = card->info.link_type; 277 278 cmd->base.duplex = DUPLEX_FULL; 279 cmd->base.autoneg = AUTONEG_ENABLE; 280 cmd->base.phy_address = 0; 281 cmd->base.mdio_support = 0; 282 cmd->base.eth_tp_mdix = ETH_TP_MDI_INVALID; 283 cmd->base.eth_tp_mdix_ctrl = ETH_TP_MDI_INVALID; 284 285 switch (link_type) { 286 case QETH_LINK_TYPE_FAST_ETH: 287 case QETH_LINK_TYPE_LANE_ETH100: 288 cmd->base.speed = SPEED_100; 289 cmd->base.port = PORT_TP; 290 break; 291 case QETH_LINK_TYPE_GBIT_ETH: 292 case QETH_LINK_TYPE_LANE_ETH1000: 293 cmd->base.speed = SPEED_1000; 294 cmd->base.port = PORT_FIBRE; 295 break; 296 case QETH_LINK_TYPE_10GBIT_ETH: 297 cmd->base.speed = SPEED_10000; 298 cmd->base.port = PORT_FIBRE; 299 break; 300 case QETH_LINK_TYPE_25GBIT_ETH: 301 cmd->base.speed = SPEED_25000; 302 cmd->base.port = PORT_FIBRE; 303 break; 304 default: 305 cmd->base.speed = SPEED_10; 306 cmd->base.port = PORT_TP; 307 } 308 qeth_set_cmd_adv_sup(cmd, cmd->base.speed, cmd->base.port); 309 310 /* Check if we can obtain more accurate information. */ 311 /* If QUERY_CARD_INFO command is not supported or fails, */ 312 /* just return the heuristics that was filled above. */ 313 rc = qeth_query_card_info(card, &carrier_info); 314 if (rc == -EOPNOTSUPP) /* for old hardware, return heuristic */ 315 return 0; 316 if (rc) /* report error from the hardware operation */ 317 return rc; 318 /* on success, fill in the information got from the hardware */ 319 320 netdev_dbg(netdev, 321 "card info: card_type=0x%02x, port_mode=0x%04x, port_speed=0x%08x\n", 322 carrier_info.card_type, 323 carrier_info.port_mode, 324 carrier_info.port_speed); 325 326 /* Update attributes for which we've obtained more authoritative */ 327 /* information, leave the rest the way they where filled above. */ 328 switch (carrier_info.card_type) { 329 case CARD_INFO_TYPE_1G_COPPER_A: 330 case CARD_INFO_TYPE_1G_COPPER_B: 331 cmd->base.port = PORT_TP; 332 qeth_set_cmd_adv_sup(cmd, SPEED_1000, cmd->base.port); 333 break; 334 case CARD_INFO_TYPE_1G_FIBRE_A: 335 case CARD_INFO_TYPE_1G_FIBRE_B: 336 cmd->base.port = PORT_FIBRE; 337 qeth_set_cmd_adv_sup(cmd, SPEED_1000, cmd->base.port); 338 break; 339 case CARD_INFO_TYPE_10G_FIBRE_A: 340 case CARD_INFO_TYPE_10G_FIBRE_B: 341 cmd->base.port = PORT_FIBRE; 342 qeth_set_cmd_adv_sup(cmd, SPEED_10000, cmd->base.port); 343 break; 344 } 345 346 switch (carrier_info.port_mode) { 347 case CARD_INFO_PORTM_FULLDUPLEX: 348 cmd->base.duplex = DUPLEX_FULL; 349 break; 350 case CARD_INFO_PORTM_HALFDUPLEX: 351 cmd->base.duplex = DUPLEX_HALF; 352 break; 353 } 354 355 switch (carrier_info.port_speed) { 356 case CARD_INFO_PORTS_10M: 357 cmd->base.speed = SPEED_10; 358 break; 359 case CARD_INFO_PORTS_100M: 360 cmd->base.speed = SPEED_100; 361 break; 362 case CARD_INFO_PORTS_1G: 363 cmd->base.speed = SPEED_1000; 364 break; 365 case CARD_INFO_PORTS_10G: 366 cmd->base.speed = SPEED_10000; 367 break; 368 case CARD_INFO_PORTS_25G: 369 cmd->base.speed = SPEED_25000; 370 break; 371 } 372 373 return 0; 374 } 375 376 const struct ethtool_ops qeth_ethtool_ops = { 377 .get_link = ethtool_op_get_link, 378 .get_ringparam = qeth_get_ringparam, 379 .get_strings = qeth_get_strings, 380 .get_ethtool_stats = qeth_get_ethtool_stats, 381 .get_sset_count = qeth_get_sset_count, 382 .get_drvinfo = qeth_get_drvinfo, 383 .get_channels = qeth_get_channels, 384 .get_link_ksettings = qeth_get_link_ksettings, 385 }; 386 387 const struct ethtool_ops qeth_osn_ethtool_ops = { 388 .get_strings = qeth_get_strings, 389 .get_ethtool_stats = qeth_get_ethtool_stats, 390 .get_sset_count = qeth_get_sset_count, 391 .get_drvinfo = qeth_get_drvinfo, 392 }; 393