1 // SPDX-License-Identifier: (GPL-2.0+ OR BSD-3-Clause) 2 /* Copyright 2014-2016 Freescale Semiconductor Inc. 3 * Copyright 2016-2022 NXP 4 */ 5 6 #include <linux/net_tstamp.h> 7 #include <linux/nospec.h> 8 9 #include "dpni.h" /* DPNI_LINK_OPT_* */ 10 #include "dpaa2-eth.h" 11 12 /* To be kept in sync with DPNI statistics */ 13 static char dpaa2_ethtool_stats[][ETH_GSTRING_LEN] = { 14 "[hw] rx frames", 15 "[hw] rx bytes", 16 "[hw] rx mcast frames", 17 "[hw] rx mcast bytes", 18 "[hw] rx bcast frames", 19 "[hw] rx bcast bytes", 20 "[hw] tx frames", 21 "[hw] tx bytes", 22 "[hw] tx mcast frames", 23 "[hw] tx mcast bytes", 24 "[hw] tx bcast frames", 25 "[hw] tx bcast bytes", 26 "[hw] rx filtered frames", 27 "[hw] rx discarded frames", 28 "[hw] rx nobuffer discards", 29 "[hw] tx discarded frames", 30 "[hw] tx confirmed frames", 31 "[hw] tx dequeued bytes", 32 "[hw] tx dequeued frames", 33 "[hw] tx rejected bytes", 34 "[hw] tx rejected frames", 35 "[hw] tx pending frames", 36 }; 37 38 #define DPAA2_ETH_NUM_STATS ARRAY_SIZE(dpaa2_ethtool_stats) 39 40 static char dpaa2_ethtool_extras[][ETH_GSTRING_LEN] = { 41 /* per-cpu stats */ 42 "[drv] tx conf frames", 43 "[drv] tx conf bytes", 44 "[drv] tx sg frames", 45 "[drv] tx sg bytes", 46 "[drv] tx tso frames", 47 "[drv] tx tso bytes", 48 "[drv] rx sg frames", 49 "[drv] rx sg bytes", 50 "[drv] tx converted sg frames", 51 "[drv] tx converted sg bytes", 52 "[drv] enqueue portal busy", 53 /* Channel stats */ 54 "[drv] dequeue portal busy", 55 "[drv] channel pull errors", 56 "[drv] cdan", 57 "[drv] xdp drop", 58 "[drv] xdp tx", 59 "[drv] xdp tx errors", 60 "[drv] xdp redirect", 61 /* FQ stats */ 62 "[qbman] rx pending frames", 63 "[qbman] rx pending bytes", 64 "[qbman] tx conf pending frames", 65 "[qbman] tx conf pending bytes", 66 "[qbman] buffer count", 67 }; 68 69 #define DPAA2_ETH_NUM_EXTRA_STATS ARRAY_SIZE(dpaa2_ethtool_extras) 70 71 static void dpaa2_eth_get_drvinfo(struct net_device *net_dev, 72 struct ethtool_drvinfo *drvinfo) 73 { 74 struct dpaa2_eth_priv *priv = netdev_priv(net_dev); 75 76 strscpy(drvinfo->driver, KBUILD_MODNAME, sizeof(drvinfo->driver)); 77 78 snprintf(drvinfo->fw_version, sizeof(drvinfo->fw_version), 79 "%u.%u", priv->dpni_ver_major, priv->dpni_ver_minor); 80 81 strscpy(drvinfo->bus_info, dev_name(net_dev->dev.parent->parent), 82 sizeof(drvinfo->bus_info)); 83 } 84 85 static int dpaa2_eth_nway_reset(struct net_device *net_dev) 86 { 87 struct dpaa2_eth_priv *priv = netdev_priv(net_dev); 88 89 if (dpaa2_eth_is_type_phy(priv)) 90 return phylink_ethtool_nway_reset(priv->mac->phylink); 91 92 return -EOPNOTSUPP; 93 } 94 95 static int 96 dpaa2_eth_get_link_ksettings(struct net_device *net_dev, 97 struct ethtool_link_ksettings *link_settings) 98 { 99 struct dpaa2_eth_priv *priv = netdev_priv(net_dev); 100 101 if (dpaa2_eth_is_type_phy(priv)) 102 return phylink_ethtool_ksettings_get(priv->mac->phylink, 103 link_settings); 104 105 link_settings->base.autoneg = AUTONEG_DISABLE; 106 if (!(priv->link_state.options & DPNI_LINK_OPT_HALF_DUPLEX)) 107 link_settings->base.duplex = DUPLEX_FULL; 108 link_settings->base.speed = priv->link_state.rate; 109 110 return 0; 111 } 112 113 static int 114 dpaa2_eth_set_link_ksettings(struct net_device *net_dev, 115 const struct ethtool_link_ksettings *link_settings) 116 { 117 struct dpaa2_eth_priv *priv = netdev_priv(net_dev); 118 119 if (!dpaa2_eth_is_type_phy(priv)) 120 return -ENOTSUPP; 121 122 return phylink_ethtool_ksettings_set(priv->mac->phylink, link_settings); 123 } 124 125 static void dpaa2_eth_get_pauseparam(struct net_device *net_dev, 126 struct ethtool_pauseparam *pause) 127 { 128 struct dpaa2_eth_priv *priv = netdev_priv(net_dev); 129 u64 link_options = priv->link_state.options; 130 131 if (dpaa2_eth_is_type_phy(priv)) { 132 phylink_ethtool_get_pauseparam(priv->mac->phylink, pause); 133 return; 134 } 135 136 pause->rx_pause = dpaa2_eth_rx_pause_enabled(link_options); 137 pause->tx_pause = dpaa2_eth_tx_pause_enabled(link_options); 138 pause->autoneg = AUTONEG_DISABLE; 139 } 140 141 static int dpaa2_eth_set_pauseparam(struct net_device *net_dev, 142 struct ethtool_pauseparam *pause) 143 { 144 struct dpaa2_eth_priv *priv = netdev_priv(net_dev); 145 struct dpni_link_cfg cfg = {0}; 146 int err; 147 148 if (!dpaa2_eth_has_pause_support(priv)) { 149 netdev_info(net_dev, "No pause frame support for DPNI version < %d.%d\n", 150 DPNI_PAUSE_VER_MAJOR, DPNI_PAUSE_VER_MINOR); 151 return -EOPNOTSUPP; 152 } 153 154 if (dpaa2_eth_is_type_phy(priv)) 155 return phylink_ethtool_set_pauseparam(priv->mac->phylink, 156 pause); 157 if (pause->autoneg) 158 return -EOPNOTSUPP; 159 160 cfg.rate = priv->link_state.rate; 161 cfg.options = priv->link_state.options; 162 if (pause->rx_pause) 163 cfg.options |= DPNI_LINK_OPT_PAUSE; 164 else 165 cfg.options &= ~DPNI_LINK_OPT_PAUSE; 166 if (!!pause->rx_pause ^ !!pause->tx_pause) 167 cfg.options |= DPNI_LINK_OPT_ASYM_PAUSE; 168 else 169 cfg.options &= ~DPNI_LINK_OPT_ASYM_PAUSE; 170 171 if (cfg.options == priv->link_state.options) 172 return 0; 173 174 err = dpni_set_link_cfg(priv->mc_io, 0, priv->mc_token, &cfg); 175 if (err) { 176 netdev_err(net_dev, "dpni_set_link_state failed\n"); 177 return err; 178 } 179 180 priv->link_state.options = cfg.options; 181 182 return 0; 183 } 184 185 static void dpaa2_eth_get_strings(struct net_device *netdev, u32 stringset, 186 u8 *data) 187 { 188 struct dpaa2_eth_priv *priv = netdev_priv(netdev); 189 u8 *p = data; 190 int i; 191 192 switch (stringset) { 193 case ETH_SS_STATS: 194 for (i = 0; i < DPAA2_ETH_NUM_STATS; i++) { 195 strscpy(p, dpaa2_ethtool_stats[i], ETH_GSTRING_LEN); 196 p += ETH_GSTRING_LEN; 197 } 198 for (i = 0; i < DPAA2_ETH_NUM_EXTRA_STATS; i++) { 199 strscpy(p, dpaa2_ethtool_extras[i], ETH_GSTRING_LEN); 200 p += ETH_GSTRING_LEN; 201 } 202 if (dpaa2_eth_has_mac(priv)) 203 dpaa2_mac_get_strings(p); 204 break; 205 } 206 } 207 208 static int dpaa2_eth_get_sset_count(struct net_device *net_dev, int sset) 209 { 210 int num_ss_stats = DPAA2_ETH_NUM_STATS + DPAA2_ETH_NUM_EXTRA_STATS; 211 struct dpaa2_eth_priv *priv = netdev_priv(net_dev); 212 213 switch (sset) { 214 case ETH_SS_STATS: /* ethtool_get_stats(), ethtool_get_drvinfo() */ 215 if (dpaa2_eth_has_mac(priv)) 216 num_ss_stats += dpaa2_mac_get_sset_count(); 217 return num_ss_stats; 218 default: 219 return -EOPNOTSUPP; 220 } 221 } 222 223 /** Fill in hardware counters, as returned by MC. 224 */ 225 static void dpaa2_eth_get_ethtool_stats(struct net_device *net_dev, 226 struct ethtool_stats *stats, 227 u64 *data) 228 { 229 struct dpaa2_eth_priv *priv = netdev_priv(net_dev); 230 union dpni_statistics dpni_stats; 231 int dpni_stats_page_size[DPNI_STATISTICS_CNT] = { 232 sizeof(dpni_stats.page_0), 233 sizeof(dpni_stats.page_1), 234 sizeof(dpni_stats.page_2), 235 sizeof(dpni_stats.page_3), 236 sizeof(dpni_stats.page_4), 237 sizeof(dpni_stats.page_5), 238 sizeof(dpni_stats.page_6), 239 }; 240 u32 fcnt_rx_total = 0, fcnt_tx_total = 0; 241 u32 bcnt_rx_total = 0, bcnt_tx_total = 0; 242 struct dpaa2_eth_ch_stats *ch_stats; 243 struct dpaa2_eth_drv_stats *extras; 244 u32 buf_cnt, buf_cnt_total = 0; 245 int j, k, err, num_cnt, i = 0; 246 u32 fcnt, bcnt; 247 248 memset(data, 0, 249 sizeof(u64) * (DPAA2_ETH_NUM_STATS + DPAA2_ETH_NUM_EXTRA_STATS)); 250 251 /* Print standard counters, from DPNI statistics */ 252 for (j = 0; j <= 6; j++) { 253 /* We're not interested in pages 4 & 5 for now */ 254 if (j == 4 || j == 5) 255 continue; 256 err = dpni_get_statistics(priv->mc_io, 0, priv->mc_token, 257 j, &dpni_stats); 258 if (err == -EINVAL) 259 /* Older firmware versions don't support all pages */ 260 memset(&dpni_stats, 0, sizeof(dpni_stats)); 261 else if (err) 262 netdev_warn(net_dev, "dpni_get_stats(%d) failed\n", j); 263 264 num_cnt = dpni_stats_page_size[j] / sizeof(u64); 265 for (k = 0; k < num_cnt; k++) 266 *(data + i++) = dpni_stats.raw.counter[k]; 267 } 268 269 /* Print per-cpu extra stats */ 270 for_each_online_cpu(k) { 271 extras = per_cpu_ptr(priv->percpu_extras, k); 272 for (j = 0; j < sizeof(*extras) / sizeof(__u64); j++) 273 *((__u64 *)data + i + j) += *((__u64 *)extras + j); 274 } 275 i += j; 276 277 /* Per-channel stats */ 278 for (k = 0; k < priv->num_channels; k++) { 279 ch_stats = &priv->channel[k]->stats; 280 for (j = 0; j < DPAA2_ETH_CH_STATS; j++) 281 *((__u64 *)data + i + j) += *((__u64 *)ch_stats + j); 282 } 283 i += j; 284 285 for (j = 0; j < priv->num_fqs; j++) { 286 /* Print FQ instantaneous counts */ 287 err = dpaa2_io_query_fq_count(NULL, priv->fq[j].fqid, 288 &fcnt, &bcnt); 289 if (err) { 290 netdev_warn(net_dev, "FQ query error %d", err); 291 return; 292 } 293 294 if (priv->fq[j].type == DPAA2_TX_CONF_FQ) { 295 fcnt_tx_total += fcnt; 296 bcnt_tx_total += bcnt; 297 } else { 298 fcnt_rx_total += fcnt; 299 bcnt_rx_total += bcnt; 300 } 301 } 302 303 *(data + i++) = fcnt_rx_total; 304 *(data + i++) = bcnt_rx_total; 305 *(data + i++) = fcnt_tx_total; 306 *(data + i++) = bcnt_tx_total; 307 308 for (j = 0; j < priv->num_bps; j++) { 309 err = dpaa2_io_query_bp_count(NULL, priv->bp[j]->bpid, &buf_cnt); 310 if (err) { 311 netdev_warn(net_dev, "Buffer count query error %d\n", err); 312 return; 313 } 314 buf_cnt_total += buf_cnt; 315 } 316 *(data + i++) = buf_cnt_total; 317 318 if (dpaa2_eth_has_mac(priv)) 319 dpaa2_mac_get_ethtool_stats(priv->mac, data + i); 320 } 321 322 static int dpaa2_eth_prep_eth_rule(struct ethhdr *eth_value, struct ethhdr *eth_mask, 323 void *key, void *mask, u64 *fields) 324 { 325 int off; 326 327 if (eth_mask->h_proto) { 328 off = dpaa2_eth_cls_fld_off(NET_PROT_ETH, NH_FLD_ETH_TYPE); 329 *(__be16 *)(key + off) = eth_value->h_proto; 330 *(__be16 *)(mask + off) = eth_mask->h_proto; 331 *fields |= DPAA2_ETH_DIST_ETHTYPE; 332 } 333 334 if (!is_zero_ether_addr(eth_mask->h_source)) { 335 off = dpaa2_eth_cls_fld_off(NET_PROT_ETH, NH_FLD_ETH_SA); 336 ether_addr_copy(key + off, eth_value->h_source); 337 ether_addr_copy(mask + off, eth_mask->h_source); 338 *fields |= DPAA2_ETH_DIST_ETHSRC; 339 } 340 341 if (!is_zero_ether_addr(eth_mask->h_dest)) { 342 off = dpaa2_eth_cls_fld_off(NET_PROT_ETH, NH_FLD_ETH_DA); 343 ether_addr_copy(key + off, eth_value->h_dest); 344 ether_addr_copy(mask + off, eth_mask->h_dest); 345 *fields |= DPAA2_ETH_DIST_ETHDST; 346 } 347 348 return 0; 349 } 350 351 static int dpaa2_eth_prep_uip_rule(struct ethtool_usrip4_spec *uip_value, 352 struct ethtool_usrip4_spec *uip_mask, 353 void *key, void *mask, u64 *fields) 354 { 355 int off; 356 u32 tmp_value, tmp_mask; 357 358 if (uip_mask->tos || uip_mask->ip_ver) 359 return -EOPNOTSUPP; 360 361 if (uip_mask->ip4src) { 362 off = dpaa2_eth_cls_fld_off(NET_PROT_IP, NH_FLD_IP_SRC); 363 *(__be32 *)(key + off) = uip_value->ip4src; 364 *(__be32 *)(mask + off) = uip_mask->ip4src; 365 *fields |= DPAA2_ETH_DIST_IPSRC; 366 } 367 368 if (uip_mask->ip4dst) { 369 off = dpaa2_eth_cls_fld_off(NET_PROT_IP, NH_FLD_IP_DST); 370 *(__be32 *)(key + off) = uip_value->ip4dst; 371 *(__be32 *)(mask + off) = uip_mask->ip4dst; 372 *fields |= DPAA2_ETH_DIST_IPDST; 373 } 374 375 if (uip_mask->proto) { 376 off = dpaa2_eth_cls_fld_off(NET_PROT_IP, NH_FLD_IP_PROTO); 377 *(u8 *)(key + off) = uip_value->proto; 378 *(u8 *)(mask + off) = uip_mask->proto; 379 *fields |= DPAA2_ETH_DIST_IPPROTO; 380 } 381 382 if (uip_mask->l4_4_bytes) { 383 tmp_value = be32_to_cpu(uip_value->l4_4_bytes); 384 tmp_mask = be32_to_cpu(uip_mask->l4_4_bytes); 385 386 off = dpaa2_eth_cls_fld_off(NET_PROT_UDP, NH_FLD_UDP_PORT_SRC); 387 *(__be16 *)(key + off) = htons(tmp_value >> 16); 388 *(__be16 *)(mask + off) = htons(tmp_mask >> 16); 389 *fields |= DPAA2_ETH_DIST_L4SRC; 390 391 off = dpaa2_eth_cls_fld_off(NET_PROT_UDP, NH_FLD_UDP_PORT_DST); 392 *(__be16 *)(key + off) = htons(tmp_value & 0xFFFF); 393 *(__be16 *)(mask + off) = htons(tmp_mask & 0xFFFF); 394 *fields |= DPAA2_ETH_DIST_L4DST; 395 } 396 397 /* Only apply the rule for IPv4 frames */ 398 off = dpaa2_eth_cls_fld_off(NET_PROT_ETH, NH_FLD_ETH_TYPE); 399 *(__be16 *)(key + off) = htons(ETH_P_IP); 400 *(__be16 *)(mask + off) = htons(0xFFFF); 401 *fields |= DPAA2_ETH_DIST_ETHTYPE; 402 403 return 0; 404 } 405 406 static int dpaa2_eth_prep_l4_rule(struct ethtool_tcpip4_spec *l4_value, 407 struct ethtool_tcpip4_spec *l4_mask, 408 void *key, void *mask, u8 l4_proto, u64 *fields) 409 { 410 int off; 411 412 if (l4_mask->tos) 413 return -EOPNOTSUPP; 414 415 if (l4_mask->ip4src) { 416 off = dpaa2_eth_cls_fld_off(NET_PROT_IP, NH_FLD_IP_SRC); 417 *(__be32 *)(key + off) = l4_value->ip4src; 418 *(__be32 *)(mask + off) = l4_mask->ip4src; 419 *fields |= DPAA2_ETH_DIST_IPSRC; 420 } 421 422 if (l4_mask->ip4dst) { 423 off = dpaa2_eth_cls_fld_off(NET_PROT_IP, NH_FLD_IP_DST); 424 *(__be32 *)(key + off) = l4_value->ip4dst; 425 *(__be32 *)(mask + off) = l4_mask->ip4dst; 426 *fields |= DPAA2_ETH_DIST_IPDST; 427 } 428 429 if (l4_mask->psrc) { 430 off = dpaa2_eth_cls_fld_off(NET_PROT_UDP, NH_FLD_UDP_PORT_SRC); 431 *(__be16 *)(key + off) = l4_value->psrc; 432 *(__be16 *)(mask + off) = l4_mask->psrc; 433 *fields |= DPAA2_ETH_DIST_L4SRC; 434 } 435 436 if (l4_mask->pdst) { 437 off = dpaa2_eth_cls_fld_off(NET_PROT_UDP, NH_FLD_UDP_PORT_DST); 438 *(__be16 *)(key + off) = l4_value->pdst; 439 *(__be16 *)(mask + off) = l4_mask->pdst; 440 *fields |= DPAA2_ETH_DIST_L4DST; 441 } 442 443 /* Only apply the rule for IPv4 frames with the specified L4 proto */ 444 off = dpaa2_eth_cls_fld_off(NET_PROT_ETH, NH_FLD_ETH_TYPE); 445 *(__be16 *)(key + off) = htons(ETH_P_IP); 446 *(__be16 *)(mask + off) = htons(0xFFFF); 447 *fields |= DPAA2_ETH_DIST_ETHTYPE; 448 449 off = dpaa2_eth_cls_fld_off(NET_PROT_IP, NH_FLD_IP_PROTO); 450 *(u8 *)(key + off) = l4_proto; 451 *(u8 *)(mask + off) = 0xFF; 452 *fields |= DPAA2_ETH_DIST_IPPROTO; 453 454 return 0; 455 } 456 457 static int dpaa2_eth_prep_ext_rule(struct ethtool_flow_ext *ext_value, 458 struct ethtool_flow_ext *ext_mask, 459 void *key, void *mask, u64 *fields) 460 { 461 int off; 462 463 if (ext_mask->vlan_etype) 464 return -EOPNOTSUPP; 465 466 if (ext_mask->vlan_tci) { 467 off = dpaa2_eth_cls_fld_off(NET_PROT_VLAN, NH_FLD_VLAN_TCI); 468 *(__be16 *)(key + off) = ext_value->vlan_tci; 469 *(__be16 *)(mask + off) = ext_mask->vlan_tci; 470 *fields |= DPAA2_ETH_DIST_VLAN; 471 } 472 473 return 0; 474 } 475 476 static int dpaa2_eth_prep_mac_ext_rule(struct ethtool_flow_ext *ext_value, 477 struct ethtool_flow_ext *ext_mask, 478 void *key, void *mask, u64 *fields) 479 { 480 int off; 481 482 if (!is_zero_ether_addr(ext_mask->h_dest)) { 483 off = dpaa2_eth_cls_fld_off(NET_PROT_ETH, NH_FLD_ETH_DA); 484 ether_addr_copy(key + off, ext_value->h_dest); 485 ether_addr_copy(mask + off, ext_mask->h_dest); 486 *fields |= DPAA2_ETH_DIST_ETHDST; 487 } 488 489 return 0; 490 } 491 492 static int dpaa2_eth_prep_cls_rule(struct ethtool_rx_flow_spec *fs, void *key, 493 void *mask, u64 *fields) 494 { 495 int err; 496 497 switch (fs->flow_type & 0xFF) { 498 case ETHER_FLOW: 499 err = dpaa2_eth_prep_eth_rule(&fs->h_u.ether_spec, &fs->m_u.ether_spec, 500 key, mask, fields); 501 break; 502 case IP_USER_FLOW: 503 err = dpaa2_eth_prep_uip_rule(&fs->h_u.usr_ip4_spec, 504 &fs->m_u.usr_ip4_spec, key, mask, fields); 505 break; 506 case TCP_V4_FLOW: 507 err = dpaa2_eth_prep_l4_rule(&fs->h_u.tcp_ip4_spec, &fs->m_u.tcp_ip4_spec, 508 key, mask, IPPROTO_TCP, fields); 509 break; 510 case UDP_V4_FLOW: 511 err = dpaa2_eth_prep_l4_rule(&fs->h_u.udp_ip4_spec, &fs->m_u.udp_ip4_spec, 512 key, mask, IPPROTO_UDP, fields); 513 break; 514 case SCTP_V4_FLOW: 515 err = dpaa2_eth_prep_l4_rule(&fs->h_u.sctp_ip4_spec, 516 &fs->m_u.sctp_ip4_spec, key, mask, 517 IPPROTO_SCTP, fields); 518 break; 519 default: 520 return -EOPNOTSUPP; 521 } 522 523 if (err) 524 return err; 525 526 if (fs->flow_type & FLOW_EXT) { 527 err = dpaa2_eth_prep_ext_rule(&fs->h_ext, &fs->m_ext, key, mask, fields); 528 if (err) 529 return err; 530 } 531 532 if (fs->flow_type & FLOW_MAC_EXT) { 533 err = dpaa2_eth_prep_mac_ext_rule(&fs->h_ext, &fs->m_ext, key, 534 mask, fields); 535 if (err) 536 return err; 537 } 538 539 return 0; 540 } 541 542 static int dpaa2_eth_do_cls_rule(struct net_device *net_dev, 543 struct ethtool_rx_flow_spec *fs, 544 bool add) 545 { 546 struct dpaa2_eth_priv *priv = netdev_priv(net_dev); 547 struct device *dev = net_dev->dev.parent; 548 struct dpni_rule_cfg rule_cfg = { 0 }; 549 struct dpni_fs_action_cfg fs_act = { 0 }; 550 dma_addr_t key_iova; 551 u64 fields = 0; 552 void *key_buf; 553 int i, err; 554 555 if (fs->ring_cookie != RX_CLS_FLOW_DISC && 556 fs->ring_cookie >= dpaa2_eth_queue_count(priv)) 557 return -EINVAL; 558 559 rule_cfg.key_size = dpaa2_eth_cls_key_size(DPAA2_ETH_DIST_ALL); 560 561 /* allocate twice the key size, for the actual key and for mask */ 562 key_buf = kzalloc(rule_cfg.key_size * 2, GFP_KERNEL); 563 if (!key_buf) 564 return -ENOMEM; 565 566 /* Fill the key and mask memory areas */ 567 err = dpaa2_eth_prep_cls_rule(fs, key_buf, key_buf + rule_cfg.key_size, &fields); 568 if (err) 569 goto free_mem; 570 571 if (!dpaa2_eth_fs_mask_enabled(priv)) { 572 /* Masking allows us to configure a maximal key during init and 573 * use it for all flow steering rules. Without it, we include 574 * in the key only the fields actually used, so we need to 575 * extract the others from the final key buffer. 576 * 577 * Program the FS key if needed, or return error if previously 578 * set key can't be used for the current rule. User needs to 579 * delete existing rules in this case to allow for the new one. 580 */ 581 if (!priv->rx_cls_fields) { 582 err = dpaa2_eth_set_cls(net_dev, fields); 583 if (err) 584 goto free_mem; 585 586 priv->rx_cls_fields = fields; 587 } else if (priv->rx_cls_fields != fields) { 588 netdev_err(net_dev, "No support for multiple FS keys, need to delete existing rules\n"); 589 err = -EOPNOTSUPP; 590 goto free_mem; 591 } 592 593 dpaa2_eth_cls_trim_rule(key_buf, fields); 594 rule_cfg.key_size = dpaa2_eth_cls_key_size(fields); 595 } 596 597 key_iova = dma_map_single(dev, key_buf, rule_cfg.key_size * 2, 598 DMA_TO_DEVICE); 599 if (dma_mapping_error(dev, key_iova)) { 600 err = -ENOMEM; 601 goto free_mem; 602 } 603 604 rule_cfg.key_iova = key_iova; 605 if (dpaa2_eth_fs_mask_enabled(priv)) 606 rule_cfg.mask_iova = key_iova + rule_cfg.key_size; 607 608 if (add) { 609 if (fs->ring_cookie == RX_CLS_FLOW_DISC) 610 fs_act.options |= DPNI_FS_OPT_DISCARD; 611 else 612 fs_act.flow_id = fs->ring_cookie; 613 } 614 for (i = 0; i < dpaa2_eth_tc_count(priv); i++) { 615 if (add) 616 err = dpni_add_fs_entry(priv->mc_io, 0, priv->mc_token, 617 i, fs->location, &rule_cfg, 618 &fs_act); 619 else 620 err = dpni_remove_fs_entry(priv->mc_io, 0, 621 priv->mc_token, i, 622 &rule_cfg); 623 if (err || priv->dpni_attrs.options & DPNI_OPT_SHARED_FS) 624 break; 625 } 626 627 dma_unmap_single(dev, key_iova, rule_cfg.key_size * 2, DMA_TO_DEVICE); 628 629 free_mem: 630 kfree(key_buf); 631 632 return err; 633 } 634 635 static int dpaa2_eth_num_cls_rules(struct dpaa2_eth_priv *priv) 636 { 637 int i, rules = 0; 638 639 for (i = 0; i < dpaa2_eth_fs_count(priv); i++) 640 if (priv->cls_rules[i].in_use) 641 rules++; 642 643 return rules; 644 } 645 646 static int dpaa2_eth_update_cls_rule(struct net_device *net_dev, 647 struct ethtool_rx_flow_spec *new_fs, 648 unsigned int location) 649 { 650 struct dpaa2_eth_priv *priv = netdev_priv(net_dev); 651 struct dpaa2_eth_cls_rule *rule; 652 int err = -EINVAL; 653 654 if (!priv->rx_cls_enabled) 655 return -EOPNOTSUPP; 656 657 if (location >= dpaa2_eth_fs_count(priv)) 658 return -EINVAL; 659 660 rule = &priv->cls_rules[location]; 661 662 /* If a rule is present at the specified location, delete it. */ 663 if (rule->in_use) { 664 err = dpaa2_eth_do_cls_rule(net_dev, &rule->fs, false); 665 if (err) 666 return err; 667 668 rule->in_use = 0; 669 670 if (!dpaa2_eth_fs_mask_enabled(priv) && 671 !dpaa2_eth_num_cls_rules(priv)) 672 priv->rx_cls_fields = 0; 673 } 674 675 /* If no new entry to add, return here */ 676 if (!new_fs) 677 return err; 678 679 err = dpaa2_eth_do_cls_rule(net_dev, new_fs, true); 680 if (err) 681 return err; 682 683 rule->in_use = 1; 684 rule->fs = *new_fs; 685 686 return 0; 687 } 688 689 static int dpaa2_eth_get_rxnfc(struct net_device *net_dev, 690 struct ethtool_rxnfc *rxnfc, u32 *rule_locs) 691 { 692 struct dpaa2_eth_priv *priv = netdev_priv(net_dev); 693 int max_rules = dpaa2_eth_fs_count(priv); 694 int i, j = 0; 695 696 switch (rxnfc->cmd) { 697 case ETHTOOL_GRXFH: 698 /* we purposely ignore cmd->flow_type for now, because the 699 * classifier only supports a single set of fields for all 700 * protocols 701 */ 702 rxnfc->data = priv->rx_hash_fields; 703 break; 704 case ETHTOOL_GRXRINGS: 705 rxnfc->data = dpaa2_eth_queue_count(priv); 706 break; 707 case ETHTOOL_GRXCLSRLCNT: 708 rxnfc->rule_cnt = 0; 709 rxnfc->rule_cnt = dpaa2_eth_num_cls_rules(priv); 710 rxnfc->data = max_rules; 711 break; 712 case ETHTOOL_GRXCLSRULE: 713 if (rxnfc->fs.location >= max_rules) 714 return -EINVAL; 715 rxnfc->fs.location = array_index_nospec(rxnfc->fs.location, 716 max_rules); 717 if (!priv->cls_rules[rxnfc->fs.location].in_use) 718 return -EINVAL; 719 rxnfc->fs = priv->cls_rules[rxnfc->fs.location].fs; 720 break; 721 case ETHTOOL_GRXCLSRLALL: 722 for (i = 0; i < max_rules; i++) { 723 if (!priv->cls_rules[i].in_use) 724 continue; 725 if (j == rxnfc->rule_cnt) 726 return -EMSGSIZE; 727 rule_locs[j++] = i; 728 } 729 rxnfc->rule_cnt = j; 730 rxnfc->data = max_rules; 731 break; 732 default: 733 return -EOPNOTSUPP; 734 } 735 736 return 0; 737 } 738 739 static int dpaa2_eth_set_rxnfc(struct net_device *net_dev, 740 struct ethtool_rxnfc *rxnfc) 741 { 742 int err = 0; 743 744 switch (rxnfc->cmd) { 745 case ETHTOOL_SRXFH: 746 if ((rxnfc->data & DPAA2_RXH_SUPPORTED) != rxnfc->data) 747 return -EOPNOTSUPP; 748 err = dpaa2_eth_set_hash(net_dev, rxnfc->data); 749 break; 750 case ETHTOOL_SRXCLSRLINS: 751 err = dpaa2_eth_update_cls_rule(net_dev, &rxnfc->fs, rxnfc->fs.location); 752 break; 753 case ETHTOOL_SRXCLSRLDEL: 754 err = dpaa2_eth_update_cls_rule(net_dev, NULL, rxnfc->fs.location); 755 break; 756 default: 757 err = -EOPNOTSUPP; 758 } 759 760 return err; 761 } 762 763 int dpaa2_phc_index = -1; 764 EXPORT_SYMBOL(dpaa2_phc_index); 765 766 static int dpaa2_eth_get_ts_info(struct net_device *dev, 767 struct ethtool_ts_info *info) 768 { 769 if (!dpaa2_ptp) 770 return ethtool_op_get_ts_info(dev, info); 771 772 info->so_timestamping = SOF_TIMESTAMPING_TX_HARDWARE | 773 SOF_TIMESTAMPING_RX_HARDWARE | 774 SOF_TIMESTAMPING_RAW_HARDWARE; 775 776 info->phc_index = dpaa2_phc_index; 777 778 info->tx_types = (1 << HWTSTAMP_TX_OFF) | 779 (1 << HWTSTAMP_TX_ON) | 780 (1 << HWTSTAMP_TX_ONESTEP_SYNC); 781 782 info->rx_filters = (1 << HWTSTAMP_FILTER_NONE) | 783 (1 << HWTSTAMP_FILTER_ALL); 784 return 0; 785 } 786 787 static int dpaa2_eth_get_tunable(struct net_device *net_dev, 788 const struct ethtool_tunable *tuna, 789 void *data) 790 { 791 struct dpaa2_eth_priv *priv = netdev_priv(net_dev); 792 int err = 0; 793 794 switch (tuna->id) { 795 case ETHTOOL_RX_COPYBREAK: 796 *(u32 *)data = priv->rx_copybreak; 797 break; 798 default: 799 err = -EOPNOTSUPP; 800 break; 801 } 802 803 return err; 804 } 805 806 static int dpaa2_eth_set_tunable(struct net_device *net_dev, 807 const struct ethtool_tunable *tuna, 808 const void *data) 809 { 810 struct dpaa2_eth_priv *priv = netdev_priv(net_dev); 811 int err = 0; 812 813 switch (tuna->id) { 814 case ETHTOOL_RX_COPYBREAK: 815 priv->rx_copybreak = *(u32 *)data; 816 break; 817 default: 818 err = -EOPNOTSUPP; 819 break; 820 } 821 822 return err; 823 } 824 825 static int dpaa2_eth_get_coalesce(struct net_device *dev, 826 struct ethtool_coalesce *ic, 827 struct kernel_ethtool_coalesce *kernel_coal, 828 struct netlink_ext_ack *extack) 829 { 830 struct dpaa2_eth_priv *priv = netdev_priv(dev); 831 struct dpaa2_io *dpio = priv->channel[0]->dpio; 832 833 dpaa2_io_get_irq_coalescing(dpio, &ic->rx_coalesce_usecs); 834 ic->use_adaptive_rx_coalesce = dpaa2_io_get_adaptive_coalescing(dpio); 835 836 return 0; 837 } 838 839 static int dpaa2_eth_set_coalesce(struct net_device *dev, 840 struct ethtool_coalesce *ic, 841 struct kernel_ethtool_coalesce *kernel_coal, 842 struct netlink_ext_ack *extack) 843 { 844 struct dpaa2_eth_priv *priv = netdev_priv(dev); 845 struct dpaa2_io *dpio; 846 int prev_adaptive; 847 u32 prev_rx_usecs; 848 int i, j, err; 849 850 /* Keep track of the previous value, just in case we fail */ 851 dpio = priv->channel[0]->dpio; 852 dpaa2_io_get_irq_coalescing(dpio, &prev_rx_usecs); 853 prev_adaptive = dpaa2_io_get_adaptive_coalescing(dpio); 854 855 /* Setup new value for rx coalescing */ 856 for (i = 0; i < priv->num_channels; i++) { 857 dpio = priv->channel[i]->dpio; 858 859 dpaa2_io_set_adaptive_coalescing(dpio, 860 ic->use_adaptive_rx_coalesce); 861 err = dpaa2_io_set_irq_coalescing(dpio, ic->rx_coalesce_usecs); 862 if (err) 863 goto restore_rx_usecs; 864 } 865 866 return 0; 867 868 restore_rx_usecs: 869 for (j = 0; j < i; j++) { 870 dpio = priv->channel[j]->dpio; 871 872 dpaa2_io_set_irq_coalescing(dpio, prev_rx_usecs); 873 dpaa2_io_set_adaptive_coalescing(dpio, prev_adaptive); 874 } 875 876 return err; 877 } 878 879 static void dpaa2_eth_get_channels(struct net_device *net_dev, 880 struct ethtool_channels *channels) 881 { 882 struct dpaa2_eth_priv *priv = netdev_priv(net_dev); 883 int queue_count = dpaa2_eth_queue_count(priv); 884 885 channels->max_rx = queue_count; 886 channels->max_tx = queue_count; 887 channels->rx_count = queue_count; 888 channels->tx_count = queue_count; 889 890 /* Tx confirmation and Rx error */ 891 channels->max_other = queue_count + 1; 892 channels->max_combined = channels->max_rx + 893 channels->max_tx + 894 channels->max_other; 895 /* Tx conf and Rx err */ 896 channels->other_count = queue_count + 1; 897 channels->combined_count = channels->rx_count + 898 channels->tx_count + 899 channels->other_count; 900 } 901 902 const struct ethtool_ops dpaa2_ethtool_ops = { 903 .supported_coalesce_params = ETHTOOL_COALESCE_RX_USECS | 904 ETHTOOL_COALESCE_USE_ADAPTIVE_RX, 905 .get_drvinfo = dpaa2_eth_get_drvinfo, 906 .nway_reset = dpaa2_eth_nway_reset, 907 .get_link = ethtool_op_get_link, 908 .get_link_ksettings = dpaa2_eth_get_link_ksettings, 909 .set_link_ksettings = dpaa2_eth_set_link_ksettings, 910 .get_pauseparam = dpaa2_eth_get_pauseparam, 911 .set_pauseparam = dpaa2_eth_set_pauseparam, 912 .get_sset_count = dpaa2_eth_get_sset_count, 913 .get_ethtool_stats = dpaa2_eth_get_ethtool_stats, 914 .get_strings = dpaa2_eth_get_strings, 915 .get_rxnfc = dpaa2_eth_get_rxnfc, 916 .set_rxnfc = dpaa2_eth_set_rxnfc, 917 .get_ts_info = dpaa2_eth_get_ts_info, 918 .get_tunable = dpaa2_eth_get_tunable, 919 .set_tunable = dpaa2_eth_set_tunable, 920 .get_coalesce = dpaa2_eth_get_coalesce, 921 .set_coalesce = dpaa2_eth_set_coalesce, 922 .get_channels = dpaa2_eth_get_channels, 923 }; 924