1 // SPDX-License-Identifier: (GPL-2.0+ OR BSD-3-Clause) 2 /* Copyright 2014-2016 Freescale Semiconductor Inc. 3 * Copyright 2016 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 realloc frames", 47 "[drv] rx sg frames", 48 "[drv] rx sg bytes", 49 "[drv] enqueue portal busy", 50 /* Channel stats */ 51 "[drv] dequeue portal busy", 52 "[drv] channel pull errors", 53 "[drv] cdan", 54 "[drv] xdp drop", 55 "[drv] xdp tx", 56 "[drv] xdp tx errors", 57 "[drv] xdp redirect", 58 /* FQ stats */ 59 "[qbman] rx pending frames", 60 "[qbman] rx pending bytes", 61 "[qbman] tx conf pending frames", 62 "[qbman] tx conf pending bytes", 63 "[qbman] buffer count", 64 }; 65 66 #define DPAA2_ETH_NUM_EXTRA_STATS ARRAY_SIZE(dpaa2_ethtool_extras) 67 68 static void dpaa2_eth_get_drvinfo(struct net_device *net_dev, 69 struct ethtool_drvinfo *drvinfo) 70 { 71 struct dpaa2_eth_priv *priv = netdev_priv(net_dev); 72 73 strlcpy(drvinfo->driver, KBUILD_MODNAME, sizeof(drvinfo->driver)); 74 75 snprintf(drvinfo->fw_version, sizeof(drvinfo->fw_version), 76 "%u.%u", priv->dpni_ver_major, priv->dpni_ver_minor); 77 78 strlcpy(drvinfo->bus_info, dev_name(net_dev->dev.parent->parent), 79 sizeof(drvinfo->bus_info)); 80 } 81 82 static int dpaa2_eth_nway_reset(struct net_device *net_dev) 83 { 84 struct dpaa2_eth_priv *priv = netdev_priv(net_dev); 85 86 if (priv->mac) 87 return phylink_ethtool_nway_reset(priv->mac->phylink); 88 89 return -EOPNOTSUPP; 90 } 91 92 static int 93 dpaa2_eth_get_link_ksettings(struct net_device *net_dev, 94 struct ethtool_link_ksettings *link_settings) 95 { 96 struct dpaa2_eth_priv *priv = netdev_priv(net_dev); 97 98 if (priv->mac) 99 return phylink_ethtool_ksettings_get(priv->mac->phylink, 100 link_settings); 101 102 link_settings->base.autoneg = AUTONEG_DISABLE; 103 if (!(priv->link_state.options & DPNI_LINK_OPT_HALF_DUPLEX)) 104 link_settings->base.duplex = DUPLEX_FULL; 105 link_settings->base.speed = priv->link_state.rate; 106 107 return 0; 108 } 109 110 static int 111 dpaa2_eth_set_link_ksettings(struct net_device *net_dev, 112 const struct ethtool_link_ksettings *link_settings) 113 { 114 struct dpaa2_eth_priv *priv = netdev_priv(net_dev); 115 116 if (!priv->mac) 117 return -ENOTSUPP; 118 119 return phylink_ethtool_ksettings_set(priv->mac->phylink, link_settings); 120 } 121 122 static void dpaa2_eth_get_pauseparam(struct net_device *net_dev, 123 struct ethtool_pauseparam *pause) 124 { 125 struct dpaa2_eth_priv *priv = netdev_priv(net_dev); 126 u64 link_options = priv->link_state.options; 127 128 if (priv->mac) { 129 phylink_ethtool_get_pauseparam(priv->mac->phylink, pause); 130 return; 131 } 132 133 pause->rx_pause = !!(link_options & DPNI_LINK_OPT_PAUSE); 134 pause->tx_pause = pause->rx_pause ^ 135 !!(link_options & DPNI_LINK_OPT_ASYM_PAUSE); 136 pause->autoneg = AUTONEG_DISABLE; 137 } 138 139 static int dpaa2_eth_set_pauseparam(struct net_device *net_dev, 140 struct ethtool_pauseparam *pause) 141 { 142 struct dpaa2_eth_priv *priv = netdev_priv(net_dev); 143 struct dpni_link_cfg cfg = {0}; 144 int err; 145 146 if (!dpaa2_eth_has_pause_support(priv)) { 147 netdev_info(net_dev, "No pause frame support for DPNI version < %d.%d\n", 148 DPNI_PAUSE_VER_MAJOR, DPNI_PAUSE_VER_MINOR); 149 return -EOPNOTSUPP; 150 } 151 152 if (priv->mac) 153 return phylink_ethtool_set_pauseparam(priv->mac->phylink, 154 pause); 155 if (pause->autoneg) 156 return -EOPNOTSUPP; 157 158 cfg.rate = priv->link_state.rate; 159 cfg.options = priv->link_state.options; 160 if (pause->rx_pause) 161 cfg.options |= DPNI_LINK_OPT_PAUSE; 162 else 163 cfg.options &= ~DPNI_LINK_OPT_PAUSE; 164 if (!!pause->rx_pause ^ !!pause->tx_pause) 165 cfg.options |= DPNI_LINK_OPT_ASYM_PAUSE; 166 else 167 cfg.options &= ~DPNI_LINK_OPT_ASYM_PAUSE; 168 169 if (cfg.options == priv->link_state.options) 170 return 0; 171 172 err = dpni_set_link_cfg(priv->mc_io, 0, priv->mc_token, &cfg); 173 if (err) { 174 netdev_err(net_dev, "dpni_set_link_state failed\n"); 175 return err; 176 } 177 178 priv->link_state.options = cfg.options; 179 180 return 0; 181 } 182 183 static void dpaa2_eth_get_strings(struct net_device *netdev, u32 stringset, 184 u8 *data) 185 { 186 struct dpaa2_eth_priv *priv = netdev_priv(netdev); 187 u8 *p = data; 188 int i; 189 190 switch (stringset) { 191 case ETH_SS_STATS: 192 for (i = 0; i < DPAA2_ETH_NUM_STATS; i++) { 193 strlcpy(p, dpaa2_ethtool_stats[i], ETH_GSTRING_LEN); 194 p += ETH_GSTRING_LEN; 195 } 196 for (i = 0; i < DPAA2_ETH_NUM_EXTRA_STATS; i++) { 197 strlcpy(p, dpaa2_ethtool_extras[i], ETH_GSTRING_LEN); 198 p += ETH_GSTRING_LEN; 199 } 200 if (priv->mac) 201 dpaa2_mac_get_strings(p); 202 break; 203 } 204 } 205 206 static int dpaa2_eth_get_sset_count(struct net_device *net_dev, int sset) 207 { 208 int num_ss_stats = DPAA2_ETH_NUM_STATS + DPAA2_ETH_NUM_EXTRA_STATS; 209 struct dpaa2_eth_priv *priv = netdev_priv(net_dev); 210 211 switch (sset) { 212 case ETH_SS_STATS: /* ethtool_get_stats(), ethtool_get_drvinfo() */ 213 if (priv->mac) 214 num_ss_stats += dpaa2_mac_get_sset_count(); 215 return num_ss_stats; 216 default: 217 return -EOPNOTSUPP; 218 } 219 } 220 221 /** Fill in hardware counters, as returned by MC. 222 */ 223 static void dpaa2_eth_get_ethtool_stats(struct net_device *net_dev, 224 struct ethtool_stats *stats, 225 u64 *data) 226 { 227 int i = 0; 228 int j, k, err; 229 int num_cnt; 230 union dpni_statistics dpni_stats; 231 u32 fcnt, bcnt; 232 u32 fcnt_rx_total = 0, fcnt_tx_total = 0; 233 u32 bcnt_rx_total = 0, bcnt_tx_total = 0; 234 u32 buf_cnt; 235 struct dpaa2_eth_priv *priv = netdev_priv(net_dev); 236 struct dpaa2_eth_drv_stats *extras; 237 struct dpaa2_eth_ch_stats *ch_stats; 238 int dpni_stats_page_size[DPNI_STATISTICS_CNT] = { 239 sizeof(dpni_stats.page_0), 240 sizeof(dpni_stats.page_1), 241 sizeof(dpni_stats.page_2), 242 sizeof(dpni_stats.page_3), 243 sizeof(dpni_stats.page_4), 244 sizeof(dpni_stats.page_5), 245 sizeof(dpni_stats.page_6), 246 }; 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 < sizeof(*ch_stats) / sizeof(__u64); 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 err = dpaa2_io_query_bp_count(NULL, priv->bpid, &buf_cnt); 309 if (err) { 310 netdev_warn(net_dev, "Buffer count query error %d\n", err); 311 return; 312 } 313 *(data + i++) = buf_cnt; 314 315 if (priv->mac) 316 dpaa2_mac_get_ethtool_stats(priv->mac, data + i); 317 } 318 319 static int prep_eth_rule(struct ethhdr *eth_value, struct ethhdr *eth_mask, 320 void *key, void *mask, u64 *fields) 321 { 322 int off; 323 324 if (eth_mask->h_proto) { 325 off = dpaa2_eth_cls_fld_off(NET_PROT_ETH, NH_FLD_ETH_TYPE); 326 *(__be16 *)(key + off) = eth_value->h_proto; 327 *(__be16 *)(mask + off) = eth_mask->h_proto; 328 *fields |= DPAA2_ETH_DIST_ETHTYPE; 329 } 330 331 if (!is_zero_ether_addr(eth_mask->h_source)) { 332 off = dpaa2_eth_cls_fld_off(NET_PROT_ETH, NH_FLD_ETH_SA); 333 ether_addr_copy(key + off, eth_value->h_source); 334 ether_addr_copy(mask + off, eth_mask->h_source); 335 *fields |= DPAA2_ETH_DIST_ETHSRC; 336 } 337 338 if (!is_zero_ether_addr(eth_mask->h_dest)) { 339 off = dpaa2_eth_cls_fld_off(NET_PROT_ETH, NH_FLD_ETH_DA); 340 ether_addr_copy(key + off, eth_value->h_dest); 341 ether_addr_copy(mask + off, eth_mask->h_dest); 342 *fields |= DPAA2_ETH_DIST_ETHDST; 343 } 344 345 return 0; 346 } 347 348 static int prep_uip_rule(struct ethtool_usrip4_spec *uip_value, 349 struct ethtool_usrip4_spec *uip_mask, 350 void *key, void *mask, u64 *fields) 351 { 352 int off; 353 u32 tmp_value, tmp_mask; 354 355 if (uip_mask->tos || uip_mask->ip_ver) 356 return -EOPNOTSUPP; 357 358 if (uip_mask->ip4src) { 359 off = dpaa2_eth_cls_fld_off(NET_PROT_IP, NH_FLD_IP_SRC); 360 *(__be32 *)(key + off) = uip_value->ip4src; 361 *(__be32 *)(mask + off) = uip_mask->ip4src; 362 *fields |= DPAA2_ETH_DIST_IPSRC; 363 } 364 365 if (uip_mask->ip4dst) { 366 off = dpaa2_eth_cls_fld_off(NET_PROT_IP, NH_FLD_IP_DST); 367 *(__be32 *)(key + off) = uip_value->ip4dst; 368 *(__be32 *)(mask + off) = uip_mask->ip4dst; 369 *fields |= DPAA2_ETH_DIST_IPDST; 370 } 371 372 if (uip_mask->proto) { 373 off = dpaa2_eth_cls_fld_off(NET_PROT_IP, NH_FLD_IP_PROTO); 374 *(u8 *)(key + off) = uip_value->proto; 375 *(u8 *)(mask + off) = uip_mask->proto; 376 *fields |= DPAA2_ETH_DIST_IPPROTO; 377 } 378 379 if (uip_mask->l4_4_bytes) { 380 tmp_value = be32_to_cpu(uip_value->l4_4_bytes); 381 tmp_mask = be32_to_cpu(uip_mask->l4_4_bytes); 382 383 off = dpaa2_eth_cls_fld_off(NET_PROT_UDP, NH_FLD_UDP_PORT_SRC); 384 *(__be16 *)(key + off) = htons(tmp_value >> 16); 385 *(__be16 *)(mask + off) = htons(tmp_mask >> 16); 386 *fields |= DPAA2_ETH_DIST_L4SRC; 387 388 off = dpaa2_eth_cls_fld_off(NET_PROT_UDP, NH_FLD_UDP_PORT_DST); 389 *(__be16 *)(key + off) = htons(tmp_value & 0xFFFF); 390 *(__be16 *)(mask + off) = htons(tmp_mask & 0xFFFF); 391 *fields |= DPAA2_ETH_DIST_L4DST; 392 } 393 394 /* Only apply the rule for IPv4 frames */ 395 off = dpaa2_eth_cls_fld_off(NET_PROT_ETH, NH_FLD_ETH_TYPE); 396 *(__be16 *)(key + off) = htons(ETH_P_IP); 397 *(__be16 *)(mask + off) = htons(0xFFFF); 398 *fields |= DPAA2_ETH_DIST_ETHTYPE; 399 400 return 0; 401 } 402 403 static int prep_l4_rule(struct ethtool_tcpip4_spec *l4_value, 404 struct ethtool_tcpip4_spec *l4_mask, 405 void *key, void *mask, u8 l4_proto, u64 *fields) 406 { 407 int off; 408 409 if (l4_mask->tos) 410 return -EOPNOTSUPP; 411 412 if (l4_mask->ip4src) { 413 off = dpaa2_eth_cls_fld_off(NET_PROT_IP, NH_FLD_IP_SRC); 414 *(__be32 *)(key + off) = l4_value->ip4src; 415 *(__be32 *)(mask + off) = l4_mask->ip4src; 416 *fields |= DPAA2_ETH_DIST_IPSRC; 417 } 418 419 if (l4_mask->ip4dst) { 420 off = dpaa2_eth_cls_fld_off(NET_PROT_IP, NH_FLD_IP_DST); 421 *(__be32 *)(key + off) = l4_value->ip4dst; 422 *(__be32 *)(mask + off) = l4_mask->ip4dst; 423 *fields |= DPAA2_ETH_DIST_IPDST; 424 } 425 426 if (l4_mask->psrc) { 427 off = dpaa2_eth_cls_fld_off(NET_PROT_UDP, NH_FLD_UDP_PORT_SRC); 428 *(__be16 *)(key + off) = l4_value->psrc; 429 *(__be16 *)(mask + off) = l4_mask->psrc; 430 *fields |= DPAA2_ETH_DIST_L4SRC; 431 } 432 433 if (l4_mask->pdst) { 434 off = dpaa2_eth_cls_fld_off(NET_PROT_UDP, NH_FLD_UDP_PORT_DST); 435 *(__be16 *)(key + off) = l4_value->pdst; 436 *(__be16 *)(mask + off) = l4_mask->pdst; 437 *fields |= DPAA2_ETH_DIST_L4DST; 438 } 439 440 /* Only apply the rule for IPv4 frames with the specified L4 proto */ 441 off = dpaa2_eth_cls_fld_off(NET_PROT_ETH, NH_FLD_ETH_TYPE); 442 *(__be16 *)(key + off) = htons(ETH_P_IP); 443 *(__be16 *)(mask + off) = htons(0xFFFF); 444 *fields |= DPAA2_ETH_DIST_ETHTYPE; 445 446 off = dpaa2_eth_cls_fld_off(NET_PROT_IP, NH_FLD_IP_PROTO); 447 *(u8 *)(key + off) = l4_proto; 448 *(u8 *)(mask + off) = 0xFF; 449 *fields |= DPAA2_ETH_DIST_IPPROTO; 450 451 return 0; 452 } 453 454 static int prep_ext_rule(struct ethtool_flow_ext *ext_value, 455 struct ethtool_flow_ext *ext_mask, 456 void *key, void *mask, u64 *fields) 457 { 458 int off; 459 460 if (ext_mask->vlan_etype) 461 return -EOPNOTSUPP; 462 463 if (ext_mask->vlan_tci) { 464 off = dpaa2_eth_cls_fld_off(NET_PROT_VLAN, NH_FLD_VLAN_TCI); 465 *(__be16 *)(key + off) = ext_value->vlan_tci; 466 *(__be16 *)(mask + off) = ext_mask->vlan_tci; 467 *fields |= DPAA2_ETH_DIST_VLAN; 468 } 469 470 return 0; 471 } 472 473 static int prep_mac_ext_rule(struct ethtool_flow_ext *ext_value, 474 struct ethtool_flow_ext *ext_mask, 475 void *key, void *mask, u64 *fields) 476 { 477 int off; 478 479 if (!is_zero_ether_addr(ext_mask->h_dest)) { 480 off = dpaa2_eth_cls_fld_off(NET_PROT_ETH, NH_FLD_ETH_DA); 481 ether_addr_copy(key + off, ext_value->h_dest); 482 ether_addr_copy(mask + off, ext_mask->h_dest); 483 *fields |= DPAA2_ETH_DIST_ETHDST; 484 } 485 486 return 0; 487 } 488 489 static int prep_cls_rule(struct ethtool_rx_flow_spec *fs, void *key, void *mask, 490 u64 *fields) 491 { 492 int err; 493 494 switch (fs->flow_type & 0xFF) { 495 case ETHER_FLOW: 496 err = prep_eth_rule(&fs->h_u.ether_spec, &fs->m_u.ether_spec, 497 key, mask, fields); 498 break; 499 case IP_USER_FLOW: 500 err = prep_uip_rule(&fs->h_u.usr_ip4_spec, 501 &fs->m_u.usr_ip4_spec, key, mask, fields); 502 break; 503 case TCP_V4_FLOW: 504 err = prep_l4_rule(&fs->h_u.tcp_ip4_spec, &fs->m_u.tcp_ip4_spec, 505 key, mask, IPPROTO_TCP, fields); 506 break; 507 case UDP_V4_FLOW: 508 err = prep_l4_rule(&fs->h_u.udp_ip4_spec, &fs->m_u.udp_ip4_spec, 509 key, mask, IPPROTO_UDP, fields); 510 break; 511 case SCTP_V4_FLOW: 512 err = prep_l4_rule(&fs->h_u.sctp_ip4_spec, 513 &fs->m_u.sctp_ip4_spec, key, mask, 514 IPPROTO_SCTP, fields); 515 break; 516 default: 517 return -EOPNOTSUPP; 518 } 519 520 if (err) 521 return err; 522 523 if (fs->flow_type & FLOW_EXT) { 524 err = prep_ext_rule(&fs->h_ext, &fs->m_ext, key, mask, fields); 525 if (err) 526 return err; 527 } 528 529 if (fs->flow_type & FLOW_MAC_EXT) { 530 err = prep_mac_ext_rule(&fs->h_ext, &fs->m_ext, key, mask, 531 fields); 532 if (err) 533 return err; 534 } 535 536 return 0; 537 } 538 539 static int do_cls_rule(struct net_device *net_dev, 540 struct ethtool_rx_flow_spec *fs, 541 bool add) 542 { 543 struct dpaa2_eth_priv *priv = netdev_priv(net_dev); 544 struct device *dev = net_dev->dev.parent; 545 struct dpni_rule_cfg rule_cfg = { 0 }; 546 struct dpni_fs_action_cfg fs_act = { 0 }; 547 dma_addr_t key_iova; 548 u64 fields = 0; 549 void *key_buf; 550 int err; 551 552 if (fs->ring_cookie != RX_CLS_FLOW_DISC && 553 fs->ring_cookie >= dpaa2_eth_queue_count(priv)) 554 return -EINVAL; 555 556 rule_cfg.key_size = dpaa2_eth_cls_key_size(DPAA2_ETH_DIST_ALL); 557 558 /* allocate twice the key size, for the actual key and for mask */ 559 key_buf = kzalloc(rule_cfg.key_size * 2, GFP_KERNEL); 560 if (!key_buf) 561 return -ENOMEM; 562 563 /* Fill the key and mask memory areas */ 564 err = prep_cls_rule(fs, key_buf, key_buf + rule_cfg.key_size, &fields); 565 if (err) 566 goto free_mem; 567 568 if (!dpaa2_eth_fs_mask_enabled(priv)) { 569 /* Masking allows us to configure a maximal key during init and 570 * use it for all flow steering rules. Without it, we include 571 * in the key only the fields actually used, so we need to 572 * extract the others from the final key buffer. 573 * 574 * Program the FS key if needed, or return error if previously 575 * set key can't be used for the current rule. User needs to 576 * delete existing rules in this case to allow for the new one. 577 */ 578 if (!priv->rx_cls_fields) { 579 err = dpaa2_eth_set_cls(net_dev, fields); 580 if (err) 581 goto free_mem; 582 583 priv->rx_cls_fields = fields; 584 } else if (priv->rx_cls_fields != fields) { 585 netdev_err(net_dev, "No support for multiple FS keys, need to delete existing rules\n"); 586 err = -EOPNOTSUPP; 587 goto free_mem; 588 } 589 590 dpaa2_eth_cls_trim_rule(key_buf, fields); 591 rule_cfg.key_size = dpaa2_eth_cls_key_size(fields); 592 } 593 594 key_iova = dma_map_single(dev, key_buf, rule_cfg.key_size * 2, 595 DMA_TO_DEVICE); 596 if (dma_mapping_error(dev, key_iova)) { 597 err = -ENOMEM; 598 goto free_mem; 599 } 600 601 rule_cfg.key_iova = key_iova; 602 if (dpaa2_eth_fs_mask_enabled(priv)) 603 rule_cfg.mask_iova = key_iova + rule_cfg.key_size; 604 605 if (add) { 606 if (fs->ring_cookie == RX_CLS_FLOW_DISC) 607 fs_act.options |= DPNI_FS_OPT_DISCARD; 608 else 609 fs_act.flow_id = fs->ring_cookie; 610 err = dpni_add_fs_entry(priv->mc_io, 0, priv->mc_token, 0, 611 fs->location, &rule_cfg, &fs_act); 612 } else { 613 err = dpni_remove_fs_entry(priv->mc_io, 0, priv->mc_token, 0, 614 &rule_cfg); 615 } 616 617 dma_unmap_single(dev, key_iova, rule_cfg.key_size * 2, DMA_TO_DEVICE); 618 619 free_mem: 620 kfree(key_buf); 621 622 return err; 623 } 624 625 static int num_rules(struct dpaa2_eth_priv *priv) 626 { 627 int i, rules = 0; 628 629 for (i = 0; i < dpaa2_eth_fs_count(priv); i++) 630 if (priv->cls_rules[i].in_use) 631 rules++; 632 633 return rules; 634 } 635 636 static int update_cls_rule(struct net_device *net_dev, 637 struct ethtool_rx_flow_spec *new_fs, 638 int location) 639 { 640 struct dpaa2_eth_priv *priv = netdev_priv(net_dev); 641 struct dpaa2_eth_cls_rule *rule; 642 int err = -EINVAL; 643 644 if (!priv->rx_cls_enabled) 645 return -EOPNOTSUPP; 646 647 if (location >= dpaa2_eth_fs_count(priv)) 648 return -EINVAL; 649 650 rule = &priv->cls_rules[location]; 651 652 /* If a rule is present at the specified location, delete it. */ 653 if (rule->in_use) { 654 err = do_cls_rule(net_dev, &rule->fs, false); 655 if (err) 656 return err; 657 658 rule->in_use = 0; 659 660 if (!dpaa2_eth_fs_mask_enabled(priv) && !num_rules(priv)) 661 priv->rx_cls_fields = 0; 662 } 663 664 /* If no new entry to add, return here */ 665 if (!new_fs) 666 return err; 667 668 err = do_cls_rule(net_dev, new_fs, true); 669 if (err) 670 return err; 671 672 rule->in_use = 1; 673 rule->fs = *new_fs; 674 675 return 0; 676 } 677 678 static int dpaa2_eth_get_rxnfc(struct net_device *net_dev, 679 struct ethtool_rxnfc *rxnfc, u32 *rule_locs) 680 { 681 struct dpaa2_eth_priv *priv = netdev_priv(net_dev); 682 int max_rules = dpaa2_eth_fs_count(priv); 683 int i, j = 0; 684 685 switch (rxnfc->cmd) { 686 case ETHTOOL_GRXFH: 687 /* we purposely ignore cmd->flow_type for now, because the 688 * classifier only supports a single set of fields for all 689 * protocols 690 */ 691 rxnfc->data = priv->rx_hash_fields; 692 break; 693 case ETHTOOL_GRXRINGS: 694 rxnfc->data = dpaa2_eth_queue_count(priv); 695 break; 696 case ETHTOOL_GRXCLSRLCNT: 697 rxnfc->rule_cnt = 0; 698 rxnfc->rule_cnt = num_rules(priv); 699 rxnfc->data = max_rules; 700 break; 701 case ETHTOOL_GRXCLSRULE: 702 if (rxnfc->fs.location >= max_rules) 703 return -EINVAL; 704 rxnfc->fs.location = array_index_nospec(rxnfc->fs.location, 705 max_rules); 706 if (!priv->cls_rules[rxnfc->fs.location].in_use) 707 return -EINVAL; 708 rxnfc->fs = priv->cls_rules[rxnfc->fs.location].fs; 709 break; 710 case ETHTOOL_GRXCLSRLALL: 711 for (i = 0; i < max_rules; i++) { 712 if (!priv->cls_rules[i].in_use) 713 continue; 714 if (j == rxnfc->rule_cnt) 715 return -EMSGSIZE; 716 rule_locs[j++] = i; 717 } 718 rxnfc->rule_cnt = j; 719 rxnfc->data = max_rules; 720 break; 721 default: 722 return -EOPNOTSUPP; 723 } 724 725 return 0; 726 } 727 728 static int dpaa2_eth_set_rxnfc(struct net_device *net_dev, 729 struct ethtool_rxnfc *rxnfc) 730 { 731 int err = 0; 732 733 switch (rxnfc->cmd) { 734 case ETHTOOL_SRXFH: 735 if ((rxnfc->data & DPAA2_RXH_SUPPORTED) != rxnfc->data) 736 return -EOPNOTSUPP; 737 err = dpaa2_eth_set_hash(net_dev, rxnfc->data); 738 break; 739 case ETHTOOL_SRXCLSRLINS: 740 err = update_cls_rule(net_dev, &rxnfc->fs, rxnfc->fs.location); 741 break; 742 case ETHTOOL_SRXCLSRLDEL: 743 err = update_cls_rule(net_dev, NULL, rxnfc->fs.location); 744 break; 745 default: 746 err = -EOPNOTSUPP; 747 } 748 749 return err; 750 } 751 752 int dpaa2_phc_index = -1; 753 EXPORT_SYMBOL(dpaa2_phc_index); 754 755 static int dpaa2_eth_get_ts_info(struct net_device *dev, 756 struct ethtool_ts_info *info) 757 { 758 info->so_timestamping = SOF_TIMESTAMPING_TX_HARDWARE | 759 SOF_TIMESTAMPING_RX_HARDWARE | 760 SOF_TIMESTAMPING_RAW_HARDWARE; 761 762 info->phc_index = dpaa2_phc_index; 763 764 info->tx_types = (1 << HWTSTAMP_TX_OFF) | 765 (1 << HWTSTAMP_TX_ON); 766 767 info->rx_filters = (1 << HWTSTAMP_FILTER_NONE) | 768 (1 << HWTSTAMP_FILTER_ALL); 769 return 0; 770 } 771 772 const struct ethtool_ops dpaa2_ethtool_ops = { 773 .get_drvinfo = dpaa2_eth_get_drvinfo, 774 .nway_reset = dpaa2_eth_nway_reset, 775 .get_link = ethtool_op_get_link, 776 .get_link_ksettings = dpaa2_eth_get_link_ksettings, 777 .set_link_ksettings = dpaa2_eth_set_link_ksettings, 778 .get_pauseparam = dpaa2_eth_get_pauseparam, 779 .set_pauseparam = dpaa2_eth_set_pauseparam, 780 .get_sset_count = dpaa2_eth_get_sset_count, 781 .get_ethtool_stats = dpaa2_eth_get_ethtool_stats, 782 .get_strings = dpaa2_eth_get_strings, 783 .get_rxnfc = dpaa2_eth_get_rxnfc, 784 .set_rxnfc = dpaa2_eth_set_rxnfc, 785 .get_ts_info = dpaa2_eth_get_ts_info, 786 }; 787