1 // SPDX-License-Identifier: GPL-2.0 2 /* Copyright (c) 2018 Intel Corporation */ 3 4 /* ethtool support for igc */ 5 #include <linux/if_vlan.h> 6 #include <linux/pm_runtime.h> 7 8 #include "igc.h" 9 10 /* forward declaration */ 11 struct igc_stats { 12 char stat_string[ETH_GSTRING_LEN]; 13 int sizeof_stat; 14 int stat_offset; 15 }; 16 17 #define IGC_STAT(_name, _stat) { \ 18 .stat_string = _name, \ 19 .sizeof_stat = sizeof_field(struct igc_adapter, _stat), \ 20 .stat_offset = offsetof(struct igc_adapter, _stat) \ 21 } 22 23 static const struct igc_stats igc_gstrings_stats[] = { 24 IGC_STAT("rx_packets", stats.gprc), 25 IGC_STAT("tx_packets", stats.gptc), 26 IGC_STAT("rx_bytes", stats.gorc), 27 IGC_STAT("tx_bytes", stats.gotc), 28 IGC_STAT("rx_broadcast", stats.bprc), 29 IGC_STAT("tx_broadcast", stats.bptc), 30 IGC_STAT("rx_multicast", stats.mprc), 31 IGC_STAT("tx_multicast", stats.mptc), 32 IGC_STAT("multicast", stats.mprc), 33 IGC_STAT("collisions", stats.colc), 34 IGC_STAT("rx_crc_errors", stats.crcerrs), 35 IGC_STAT("rx_no_buffer_count", stats.rnbc), 36 IGC_STAT("rx_missed_errors", stats.mpc), 37 IGC_STAT("tx_aborted_errors", stats.ecol), 38 IGC_STAT("tx_carrier_errors", stats.tncrs), 39 IGC_STAT("tx_window_errors", stats.latecol), 40 IGC_STAT("tx_abort_late_coll", stats.latecol), 41 IGC_STAT("tx_deferred_ok", stats.dc), 42 IGC_STAT("tx_single_coll_ok", stats.scc), 43 IGC_STAT("tx_multi_coll_ok", stats.mcc), 44 IGC_STAT("tx_timeout_count", tx_timeout_count), 45 IGC_STAT("rx_long_length_errors", stats.roc), 46 IGC_STAT("rx_short_length_errors", stats.ruc), 47 IGC_STAT("rx_align_errors", stats.algnerrc), 48 IGC_STAT("tx_tcp_seg_good", stats.tsctc), 49 IGC_STAT("tx_tcp_seg_failed", stats.tsctfc), 50 IGC_STAT("rx_flow_control_xon", stats.xonrxc), 51 IGC_STAT("rx_flow_control_xoff", stats.xoffrxc), 52 IGC_STAT("tx_flow_control_xon", stats.xontxc), 53 IGC_STAT("tx_flow_control_xoff", stats.xofftxc), 54 IGC_STAT("rx_long_byte_count", stats.gorc), 55 IGC_STAT("tx_dma_out_of_sync", stats.doosync), 56 IGC_STAT("tx_smbus", stats.mgptc), 57 IGC_STAT("rx_smbus", stats.mgprc), 58 IGC_STAT("dropped_smbus", stats.mgpdc), 59 IGC_STAT("os2bmc_rx_by_bmc", stats.o2bgptc), 60 IGC_STAT("os2bmc_tx_by_bmc", stats.b2ospc), 61 IGC_STAT("os2bmc_tx_by_host", stats.o2bspc), 62 IGC_STAT("os2bmc_rx_by_host", stats.b2ogprc), 63 IGC_STAT("tx_hwtstamp_timeouts", tx_hwtstamp_timeouts), 64 IGC_STAT("tx_hwtstamp_skipped", tx_hwtstamp_skipped), 65 IGC_STAT("rx_hwtstamp_cleared", rx_hwtstamp_cleared), 66 }; 67 68 #define IGC_NETDEV_STAT(_net_stat) { \ 69 .stat_string = __stringify(_net_stat), \ 70 .sizeof_stat = sizeof_field(struct rtnl_link_stats64, _net_stat), \ 71 .stat_offset = offsetof(struct rtnl_link_stats64, _net_stat) \ 72 } 73 74 static const struct igc_stats igc_gstrings_net_stats[] = { 75 IGC_NETDEV_STAT(rx_errors), 76 IGC_NETDEV_STAT(tx_errors), 77 IGC_NETDEV_STAT(tx_dropped), 78 IGC_NETDEV_STAT(rx_length_errors), 79 IGC_NETDEV_STAT(rx_over_errors), 80 IGC_NETDEV_STAT(rx_frame_errors), 81 IGC_NETDEV_STAT(rx_fifo_errors), 82 IGC_NETDEV_STAT(tx_fifo_errors), 83 IGC_NETDEV_STAT(tx_heartbeat_errors) 84 }; 85 86 enum igc_diagnostics_results { 87 TEST_REG = 0, 88 TEST_EEP, 89 TEST_IRQ, 90 TEST_LOOP, 91 TEST_LINK 92 }; 93 94 static const char igc_gstrings_test[][ETH_GSTRING_LEN] = { 95 [TEST_REG] = "Register test (offline)", 96 [TEST_EEP] = "Eeprom test (offline)", 97 [TEST_IRQ] = "Interrupt test (offline)", 98 [TEST_LOOP] = "Loopback test (offline)", 99 [TEST_LINK] = "Link test (on/offline)" 100 }; 101 102 #define IGC_TEST_LEN (sizeof(igc_gstrings_test) / ETH_GSTRING_LEN) 103 104 #define IGC_GLOBAL_STATS_LEN \ 105 (sizeof(igc_gstrings_stats) / sizeof(struct igc_stats)) 106 #define IGC_NETDEV_STATS_LEN \ 107 (sizeof(igc_gstrings_net_stats) / sizeof(struct igc_stats)) 108 #define IGC_RX_QUEUE_STATS_LEN \ 109 (sizeof(struct igc_rx_queue_stats) / sizeof(u64)) 110 #define IGC_TX_QUEUE_STATS_LEN 3 /* packets, bytes, restart_queue */ 111 #define IGC_QUEUE_STATS_LEN \ 112 ((((struct igc_adapter *)netdev_priv(netdev))->num_rx_queues * \ 113 IGC_RX_QUEUE_STATS_LEN) + \ 114 (((struct igc_adapter *)netdev_priv(netdev))->num_tx_queues * \ 115 IGC_TX_QUEUE_STATS_LEN)) 116 #define IGC_STATS_LEN \ 117 (IGC_GLOBAL_STATS_LEN + IGC_NETDEV_STATS_LEN + IGC_QUEUE_STATS_LEN) 118 119 static const char igc_priv_flags_strings[][ETH_GSTRING_LEN] = { 120 #define IGC_PRIV_FLAGS_LEGACY_RX BIT(0) 121 "legacy-rx", 122 }; 123 124 #define IGC_PRIV_FLAGS_STR_LEN ARRAY_SIZE(igc_priv_flags_strings) 125 126 static void igc_get_drvinfo(struct net_device *netdev, 127 struct ethtool_drvinfo *drvinfo) 128 { 129 struct igc_adapter *adapter = netdev_priv(netdev); 130 131 strlcpy(drvinfo->driver, igc_driver_name, sizeof(drvinfo->driver)); 132 strlcpy(drvinfo->version, igc_driver_version, sizeof(drvinfo->version)); 133 134 /* add fw_version here */ 135 strlcpy(drvinfo->bus_info, pci_name(adapter->pdev), 136 sizeof(drvinfo->bus_info)); 137 138 drvinfo->n_priv_flags = IGC_PRIV_FLAGS_STR_LEN; 139 } 140 141 static int igc_get_regs_len(struct net_device *netdev) 142 { 143 return IGC_REGS_LEN * sizeof(u32); 144 } 145 146 static void igc_get_regs(struct net_device *netdev, 147 struct ethtool_regs *regs, void *p) 148 { 149 struct igc_adapter *adapter = netdev_priv(netdev); 150 struct igc_hw *hw = &adapter->hw; 151 u32 *regs_buff = p; 152 u8 i; 153 154 memset(p, 0, IGC_REGS_LEN * sizeof(u32)); 155 156 regs->version = (1u << 24) | (hw->revision_id << 16) | hw->device_id; 157 158 /* General Registers */ 159 regs_buff[0] = rd32(IGC_CTRL); 160 regs_buff[1] = rd32(IGC_STATUS); 161 regs_buff[2] = rd32(IGC_CTRL_EXT); 162 regs_buff[3] = rd32(IGC_MDIC); 163 regs_buff[4] = rd32(IGC_CONNSW); 164 165 /* NVM Register */ 166 regs_buff[5] = rd32(IGC_EECD); 167 168 /* Interrupt */ 169 /* Reading EICS for EICR because they read the 170 * same but EICS does not clear on read 171 */ 172 regs_buff[6] = rd32(IGC_EICS); 173 regs_buff[7] = rd32(IGC_EICS); 174 regs_buff[8] = rd32(IGC_EIMS); 175 regs_buff[9] = rd32(IGC_EIMC); 176 regs_buff[10] = rd32(IGC_EIAC); 177 regs_buff[11] = rd32(IGC_EIAM); 178 /* Reading ICS for ICR because they read the 179 * same but ICS does not clear on read 180 */ 181 regs_buff[12] = rd32(IGC_ICS); 182 regs_buff[13] = rd32(IGC_ICS); 183 regs_buff[14] = rd32(IGC_IMS); 184 regs_buff[15] = rd32(IGC_IMC); 185 regs_buff[16] = rd32(IGC_IAC); 186 regs_buff[17] = rd32(IGC_IAM); 187 188 /* Flow Control */ 189 regs_buff[18] = rd32(IGC_FCAL); 190 regs_buff[19] = rd32(IGC_FCAH); 191 regs_buff[20] = rd32(IGC_FCTTV); 192 regs_buff[21] = rd32(IGC_FCRTL); 193 regs_buff[22] = rd32(IGC_FCRTH); 194 regs_buff[23] = rd32(IGC_FCRTV); 195 196 /* Receive */ 197 regs_buff[24] = rd32(IGC_RCTL); 198 regs_buff[25] = rd32(IGC_RXCSUM); 199 regs_buff[26] = rd32(IGC_RLPML); 200 regs_buff[27] = rd32(IGC_RFCTL); 201 202 /* Transmit */ 203 regs_buff[28] = rd32(IGC_TCTL); 204 regs_buff[29] = rd32(IGC_TIPG); 205 206 /* Wake Up */ 207 208 /* MAC */ 209 210 /* Statistics */ 211 regs_buff[30] = adapter->stats.crcerrs; 212 regs_buff[31] = adapter->stats.algnerrc; 213 regs_buff[32] = adapter->stats.symerrs; 214 regs_buff[33] = adapter->stats.rxerrc; 215 regs_buff[34] = adapter->stats.mpc; 216 regs_buff[35] = adapter->stats.scc; 217 regs_buff[36] = adapter->stats.ecol; 218 regs_buff[37] = adapter->stats.mcc; 219 regs_buff[38] = adapter->stats.latecol; 220 regs_buff[39] = adapter->stats.colc; 221 regs_buff[40] = adapter->stats.dc; 222 regs_buff[41] = adapter->stats.tncrs; 223 regs_buff[42] = adapter->stats.sec; 224 regs_buff[43] = adapter->stats.htdpmc; 225 regs_buff[44] = adapter->stats.rlec; 226 regs_buff[45] = adapter->stats.xonrxc; 227 regs_buff[46] = adapter->stats.xontxc; 228 regs_buff[47] = adapter->stats.xoffrxc; 229 regs_buff[48] = adapter->stats.xofftxc; 230 regs_buff[49] = adapter->stats.fcruc; 231 regs_buff[50] = adapter->stats.prc64; 232 regs_buff[51] = adapter->stats.prc127; 233 regs_buff[52] = adapter->stats.prc255; 234 regs_buff[53] = adapter->stats.prc511; 235 regs_buff[54] = adapter->stats.prc1023; 236 regs_buff[55] = adapter->stats.prc1522; 237 regs_buff[56] = adapter->stats.gprc; 238 regs_buff[57] = adapter->stats.bprc; 239 regs_buff[58] = adapter->stats.mprc; 240 regs_buff[59] = adapter->stats.gptc; 241 regs_buff[60] = adapter->stats.gorc; 242 regs_buff[61] = adapter->stats.gotc; 243 regs_buff[62] = adapter->stats.rnbc; 244 regs_buff[63] = adapter->stats.ruc; 245 regs_buff[64] = adapter->stats.rfc; 246 regs_buff[65] = adapter->stats.roc; 247 regs_buff[66] = adapter->stats.rjc; 248 regs_buff[67] = adapter->stats.mgprc; 249 regs_buff[68] = adapter->stats.mgpdc; 250 regs_buff[69] = adapter->stats.mgptc; 251 regs_buff[70] = adapter->stats.tor; 252 regs_buff[71] = adapter->stats.tot; 253 regs_buff[72] = adapter->stats.tpr; 254 regs_buff[73] = adapter->stats.tpt; 255 regs_buff[74] = adapter->stats.ptc64; 256 regs_buff[75] = adapter->stats.ptc127; 257 regs_buff[76] = adapter->stats.ptc255; 258 regs_buff[77] = adapter->stats.ptc511; 259 regs_buff[78] = adapter->stats.ptc1023; 260 regs_buff[79] = adapter->stats.ptc1522; 261 regs_buff[80] = adapter->stats.mptc; 262 regs_buff[81] = adapter->stats.bptc; 263 regs_buff[82] = adapter->stats.tsctc; 264 regs_buff[83] = adapter->stats.iac; 265 regs_buff[84] = adapter->stats.rpthc; 266 regs_buff[85] = adapter->stats.hgptc; 267 regs_buff[86] = adapter->stats.hgorc; 268 regs_buff[87] = adapter->stats.hgotc; 269 regs_buff[88] = adapter->stats.lenerrs; 270 regs_buff[89] = adapter->stats.scvpc; 271 regs_buff[90] = adapter->stats.hrmpc; 272 273 for (i = 0; i < 4; i++) 274 regs_buff[91 + i] = rd32(IGC_SRRCTL(i)); 275 for (i = 0; i < 4; i++) 276 regs_buff[95 + i] = rd32(IGC_PSRTYPE(i)); 277 for (i = 0; i < 4; i++) 278 regs_buff[99 + i] = rd32(IGC_RDBAL(i)); 279 for (i = 0; i < 4; i++) 280 regs_buff[103 + i] = rd32(IGC_RDBAH(i)); 281 for (i = 0; i < 4; i++) 282 regs_buff[107 + i] = rd32(IGC_RDLEN(i)); 283 for (i = 0; i < 4; i++) 284 regs_buff[111 + i] = rd32(IGC_RDH(i)); 285 for (i = 0; i < 4; i++) 286 regs_buff[115 + i] = rd32(IGC_RDT(i)); 287 for (i = 0; i < 4; i++) 288 regs_buff[119 + i] = rd32(IGC_RXDCTL(i)); 289 290 for (i = 0; i < 10; i++) 291 regs_buff[123 + i] = rd32(IGC_EITR(i)); 292 for (i = 0; i < 16; i++) 293 regs_buff[139 + i] = rd32(IGC_RAL(i)); 294 for (i = 0; i < 16; i++) 295 regs_buff[145 + i] = rd32(IGC_RAH(i)); 296 297 for (i = 0; i < 4; i++) 298 regs_buff[149 + i] = rd32(IGC_TDBAL(i)); 299 for (i = 0; i < 4; i++) 300 regs_buff[152 + i] = rd32(IGC_TDBAH(i)); 301 for (i = 0; i < 4; i++) 302 regs_buff[156 + i] = rd32(IGC_TDLEN(i)); 303 for (i = 0; i < 4; i++) 304 regs_buff[160 + i] = rd32(IGC_TDH(i)); 305 for (i = 0; i < 4; i++) 306 regs_buff[164 + i] = rd32(IGC_TDT(i)); 307 for (i = 0; i < 4; i++) 308 regs_buff[168 + i] = rd32(IGC_TXDCTL(i)); 309 } 310 311 static u32 igc_get_msglevel(struct net_device *netdev) 312 { 313 struct igc_adapter *adapter = netdev_priv(netdev); 314 315 return adapter->msg_enable; 316 } 317 318 static void igc_set_msglevel(struct net_device *netdev, u32 data) 319 { 320 struct igc_adapter *adapter = netdev_priv(netdev); 321 322 adapter->msg_enable = data; 323 } 324 325 static int igc_nway_reset(struct net_device *netdev) 326 { 327 struct igc_adapter *adapter = netdev_priv(netdev); 328 329 if (netif_running(netdev)) 330 igc_reinit_locked(adapter); 331 return 0; 332 } 333 334 static u32 igc_get_link(struct net_device *netdev) 335 { 336 struct igc_adapter *adapter = netdev_priv(netdev); 337 struct igc_mac_info *mac = &adapter->hw.mac; 338 339 /* If the link is not reported up to netdev, interrupts are disabled, 340 * and so the physical link state may have changed since we last 341 * looked. Set get_link_status to make sure that the true link 342 * state is interrogated, rather than pulling a cached and possibly 343 * stale link state from the driver. 344 */ 345 if (!netif_carrier_ok(netdev)) 346 mac->get_link_status = 1; 347 348 return igc_has_link(adapter); 349 } 350 351 static int igc_get_eeprom_len(struct net_device *netdev) 352 { 353 struct igc_adapter *adapter = netdev_priv(netdev); 354 355 return adapter->hw.nvm.word_size * 2; 356 } 357 358 static int igc_get_eeprom(struct net_device *netdev, 359 struct ethtool_eeprom *eeprom, u8 *bytes) 360 { 361 struct igc_adapter *adapter = netdev_priv(netdev); 362 struct igc_hw *hw = &adapter->hw; 363 int first_word, last_word; 364 u16 *eeprom_buff; 365 int ret_val = 0; 366 u16 i; 367 368 if (eeprom->len == 0) 369 return -EINVAL; 370 371 eeprom->magic = hw->vendor_id | (hw->device_id << 16); 372 373 first_word = eeprom->offset >> 1; 374 last_word = (eeprom->offset + eeprom->len - 1) >> 1; 375 376 eeprom_buff = kmalloc_array(last_word - first_word + 1, sizeof(u16), 377 GFP_KERNEL); 378 if (!eeprom_buff) 379 return -ENOMEM; 380 381 if (hw->nvm.type == igc_nvm_eeprom_spi) { 382 ret_val = hw->nvm.ops.read(hw, first_word, 383 last_word - first_word + 1, 384 eeprom_buff); 385 } else { 386 for (i = 0; i < last_word - first_word + 1; i++) { 387 ret_val = hw->nvm.ops.read(hw, first_word + i, 1, 388 &eeprom_buff[i]); 389 if (ret_val) 390 break; 391 } 392 } 393 394 /* Device's eeprom is always little-endian, word addressable */ 395 for (i = 0; i < last_word - first_word + 1; i++) 396 le16_to_cpus(&eeprom_buff[i]); 397 398 memcpy(bytes, (u8 *)eeprom_buff + (eeprom->offset & 1), 399 eeprom->len); 400 kfree(eeprom_buff); 401 402 return ret_val; 403 } 404 405 static int igc_set_eeprom(struct net_device *netdev, 406 struct ethtool_eeprom *eeprom, u8 *bytes) 407 { 408 struct igc_adapter *adapter = netdev_priv(netdev); 409 struct igc_hw *hw = &adapter->hw; 410 int max_len, first_word, last_word, ret_val = 0; 411 u16 *eeprom_buff; 412 void *ptr; 413 u16 i; 414 415 if (eeprom->len == 0) 416 return -EOPNOTSUPP; 417 418 if (hw->mac.type >= igc_i225 && 419 !igc_get_flash_presence_i225(hw)) { 420 return -EOPNOTSUPP; 421 } 422 423 if (eeprom->magic != (hw->vendor_id | (hw->device_id << 16))) 424 return -EFAULT; 425 426 max_len = hw->nvm.word_size * 2; 427 428 first_word = eeprom->offset >> 1; 429 last_word = (eeprom->offset + eeprom->len - 1) >> 1; 430 eeprom_buff = kmalloc(max_len, GFP_KERNEL); 431 if (!eeprom_buff) 432 return -ENOMEM; 433 434 ptr = (void *)eeprom_buff; 435 436 if (eeprom->offset & 1) { 437 /* need read/modify/write of first changed EEPROM word 438 * only the second byte of the word is being modified 439 */ 440 ret_val = hw->nvm.ops.read(hw, first_word, 1, 441 &eeprom_buff[0]); 442 ptr++; 443 } 444 if (((eeprom->offset + eeprom->len) & 1) && ret_val == 0) { 445 /* need read/modify/write of last changed EEPROM word 446 * only the first byte of the word is being modified 447 */ 448 ret_val = hw->nvm.ops.read(hw, last_word, 1, 449 &eeprom_buff[last_word - first_word]); 450 } 451 452 /* Device's eeprom is always little-endian, word addressable */ 453 for (i = 0; i < last_word - first_word + 1; i++) 454 le16_to_cpus(&eeprom_buff[i]); 455 456 memcpy(ptr, bytes, eeprom->len); 457 458 for (i = 0; i < last_word - first_word + 1; i++) 459 eeprom_buff[i] = cpu_to_le16(eeprom_buff[i]); 460 461 ret_val = hw->nvm.ops.write(hw, first_word, 462 last_word - first_word + 1, eeprom_buff); 463 464 /* Update the checksum if nvm write succeeded */ 465 if (ret_val == 0) 466 hw->nvm.ops.update(hw); 467 468 /* check if need: igc_set_fw_version(adapter); */ 469 kfree(eeprom_buff); 470 return ret_val; 471 } 472 473 static void igc_get_ringparam(struct net_device *netdev, 474 struct ethtool_ringparam *ring) 475 { 476 struct igc_adapter *adapter = netdev_priv(netdev); 477 478 ring->rx_max_pending = IGC_MAX_RXD; 479 ring->tx_max_pending = IGC_MAX_TXD; 480 ring->rx_pending = adapter->rx_ring_count; 481 ring->tx_pending = adapter->tx_ring_count; 482 } 483 484 static int igc_set_ringparam(struct net_device *netdev, 485 struct ethtool_ringparam *ring) 486 { 487 struct igc_adapter *adapter = netdev_priv(netdev); 488 struct igc_ring *temp_ring; 489 u16 new_rx_count, new_tx_count; 490 int i, err = 0; 491 492 if (ring->rx_mini_pending || ring->rx_jumbo_pending) 493 return -EINVAL; 494 495 new_rx_count = min_t(u32, ring->rx_pending, IGC_MAX_RXD); 496 new_rx_count = max_t(u16, new_rx_count, IGC_MIN_RXD); 497 new_rx_count = ALIGN(new_rx_count, REQ_RX_DESCRIPTOR_MULTIPLE); 498 499 new_tx_count = min_t(u32, ring->tx_pending, IGC_MAX_TXD); 500 new_tx_count = max_t(u16, new_tx_count, IGC_MIN_TXD); 501 new_tx_count = ALIGN(new_tx_count, REQ_TX_DESCRIPTOR_MULTIPLE); 502 503 if (new_tx_count == adapter->tx_ring_count && 504 new_rx_count == adapter->rx_ring_count) { 505 /* nothing to do */ 506 return 0; 507 } 508 509 while (test_and_set_bit(__IGC_RESETTING, &adapter->state)) 510 usleep_range(1000, 2000); 511 512 if (!netif_running(adapter->netdev)) { 513 for (i = 0; i < adapter->num_tx_queues; i++) 514 adapter->tx_ring[i]->count = new_tx_count; 515 for (i = 0; i < adapter->num_rx_queues; i++) 516 adapter->rx_ring[i]->count = new_rx_count; 517 adapter->tx_ring_count = new_tx_count; 518 adapter->rx_ring_count = new_rx_count; 519 goto clear_reset; 520 } 521 522 if (adapter->num_tx_queues > adapter->num_rx_queues) 523 temp_ring = vmalloc(array_size(sizeof(struct igc_ring), 524 adapter->num_tx_queues)); 525 else 526 temp_ring = vmalloc(array_size(sizeof(struct igc_ring), 527 adapter->num_rx_queues)); 528 529 if (!temp_ring) { 530 err = -ENOMEM; 531 goto clear_reset; 532 } 533 534 igc_down(adapter); 535 536 /* We can't just free everything and then setup again, 537 * because the ISRs in MSI-X mode get passed pointers 538 * to the Tx and Rx ring structs. 539 */ 540 if (new_tx_count != adapter->tx_ring_count) { 541 for (i = 0; i < adapter->num_tx_queues; i++) { 542 memcpy(&temp_ring[i], adapter->tx_ring[i], 543 sizeof(struct igc_ring)); 544 545 temp_ring[i].count = new_tx_count; 546 err = igc_setup_tx_resources(&temp_ring[i]); 547 if (err) { 548 while (i) { 549 i--; 550 igc_free_tx_resources(&temp_ring[i]); 551 } 552 goto err_setup; 553 } 554 } 555 556 for (i = 0; i < adapter->num_tx_queues; i++) { 557 igc_free_tx_resources(adapter->tx_ring[i]); 558 559 memcpy(adapter->tx_ring[i], &temp_ring[i], 560 sizeof(struct igc_ring)); 561 } 562 563 adapter->tx_ring_count = new_tx_count; 564 } 565 566 if (new_rx_count != adapter->rx_ring_count) { 567 for (i = 0; i < adapter->num_rx_queues; i++) { 568 memcpy(&temp_ring[i], adapter->rx_ring[i], 569 sizeof(struct igc_ring)); 570 571 temp_ring[i].count = new_rx_count; 572 err = igc_setup_rx_resources(&temp_ring[i]); 573 if (err) { 574 while (i) { 575 i--; 576 igc_free_rx_resources(&temp_ring[i]); 577 } 578 goto err_setup; 579 } 580 } 581 582 for (i = 0; i < adapter->num_rx_queues; i++) { 583 igc_free_rx_resources(adapter->rx_ring[i]); 584 585 memcpy(adapter->rx_ring[i], &temp_ring[i], 586 sizeof(struct igc_ring)); 587 } 588 589 adapter->rx_ring_count = new_rx_count; 590 } 591 err_setup: 592 igc_up(adapter); 593 vfree(temp_ring); 594 clear_reset: 595 clear_bit(__IGC_RESETTING, &adapter->state); 596 return err; 597 } 598 599 static void igc_get_pauseparam(struct net_device *netdev, 600 struct ethtool_pauseparam *pause) 601 { 602 struct igc_adapter *adapter = netdev_priv(netdev); 603 struct igc_hw *hw = &adapter->hw; 604 605 pause->autoneg = 606 (adapter->fc_autoneg ? AUTONEG_ENABLE : AUTONEG_DISABLE); 607 608 if (hw->fc.current_mode == igc_fc_rx_pause) { 609 pause->rx_pause = 1; 610 } else if (hw->fc.current_mode == igc_fc_tx_pause) { 611 pause->tx_pause = 1; 612 } else if (hw->fc.current_mode == igc_fc_full) { 613 pause->rx_pause = 1; 614 pause->tx_pause = 1; 615 } 616 } 617 618 static int igc_set_pauseparam(struct net_device *netdev, 619 struct ethtool_pauseparam *pause) 620 { 621 struct igc_adapter *adapter = netdev_priv(netdev); 622 struct igc_hw *hw = &adapter->hw; 623 int retval = 0; 624 625 adapter->fc_autoneg = pause->autoneg; 626 627 while (test_and_set_bit(__IGC_RESETTING, &adapter->state)) 628 usleep_range(1000, 2000); 629 630 if (adapter->fc_autoneg == AUTONEG_ENABLE) { 631 hw->fc.requested_mode = igc_fc_default; 632 if (netif_running(adapter->netdev)) { 633 igc_down(adapter); 634 igc_up(adapter); 635 } else { 636 igc_reset(adapter); 637 } 638 } else { 639 if (pause->rx_pause && pause->tx_pause) 640 hw->fc.requested_mode = igc_fc_full; 641 else if (pause->rx_pause && !pause->tx_pause) 642 hw->fc.requested_mode = igc_fc_rx_pause; 643 else if (!pause->rx_pause && pause->tx_pause) 644 hw->fc.requested_mode = igc_fc_tx_pause; 645 else if (!pause->rx_pause && !pause->tx_pause) 646 hw->fc.requested_mode = igc_fc_none; 647 648 hw->fc.current_mode = hw->fc.requested_mode; 649 650 retval = ((hw->phy.media_type == igc_media_type_copper) ? 651 igc_force_mac_fc(hw) : igc_setup_link(hw)); 652 } 653 654 clear_bit(__IGC_RESETTING, &adapter->state); 655 return retval; 656 } 657 658 static void igc_get_strings(struct net_device *netdev, u32 stringset, u8 *data) 659 { 660 struct igc_adapter *adapter = netdev_priv(netdev); 661 u8 *p = data; 662 int i; 663 664 switch (stringset) { 665 case ETH_SS_TEST: 666 memcpy(data, *igc_gstrings_test, 667 IGC_TEST_LEN * ETH_GSTRING_LEN); 668 break; 669 case ETH_SS_STATS: 670 for (i = 0; i < IGC_GLOBAL_STATS_LEN; i++) { 671 memcpy(p, igc_gstrings_stats[i].stat_string, 672 ETH_GSTRING_LEN); 673 p += ETH_GSTRING_LEN; 674 } 675 for (i = 0; i < IGC_NETDEV_STATS_LEN; i++) { 676 memcpy(p, igc_gstrings_net_stats[i].stat_string, 677 ETH_GSTRING_LEN); 678 p += ETH_GSTRING_LEN; 679 } 680 for (i = 0; i < adapter->num_tx_queues; i++) { 681 sprintf(p, "tx_queue_%u_packets", i); 682 p += ETH_GSTRING_LEN; 683 sprintf(p, "tx_queue_%u_bytes", i); 684 p += ETH_GSTRING_LEN; 685 sprintf(p, "tx_queue_%u_restart", i); 686 p += ETH_GSTRING_LEN; 687 } 688 for (i = 0; i < adapter->num_rx_queues; i++) { 689 sprintf(p, "rx_queue_%u_packets", i); 690 p += ETH_GSTRING_LEN; 691 sprintf(p, "rx_queue_%u_bytes", i); 692 p += ETH_GSTRING_LEN; 693 sprintf(p, "rx_queue_%u_drops", i); 694 p += ETH_GSTRING_LEN; 695 sprintf(p, "rx_queue_%u_csum_err", i); 696 p += ETH_GSTRING_LEN; 697 sprintf(p, "rx_queue_%u_alloc_failed", i); 698 p += ETH_GSTRING_LEN; 699 } 700 /* BUG_ON(p - data != IGC_STATS_LEN * ETH_GSTRING_LEN); */ 701 break; 702 case ETH_SS_PRIV_FLAGS: 703 memcpy(data, igc_priv_flags_strings, 704 IGC_PRIV_FLAGS_STR_LEN * ETH_GSTRING_LEN); 705 break; 706 } 707 } 708 709 static int igc_get_sset_count(struct net_device *netdev, int sset) 710 { 711 switch (sset) { 712 case ETH_SS_STATS: 713 return IGC_STATS_LEN; 714 case ETH_SS_TEST: 715 return IGC_TEST_LEN; 716 case ETH_SS_PRIV_FLAGS: 717 return IGC_PRIV_FLAGS_STR_LEN; 718 default: 719 return -ENOTSUPP; 720 } 721 } 722 723 static void igc_get_ethtool_stats(struct net_device *netdev, 724 struct ethtool_stats *stats, u64 *data) 725 { 726 struct igc_adapter *adapter = netdev_priv(netdev); 727 struct rtnl_link_stats64 *net_stats = &adapter->stats64; 728 unsigned int start; 729 struct igc_ring *ring; 730 int i, j; 731 char *p; 732 733 spin_lock(&adapter->stats64_lock); 734 igc_update_stats(adapter); 735 736 for (i = 0; i < IGC_GLOBAL_STATS_LEN; i++) { 737 p = (char *)adapter + igc_gstrings_stats[i].stat_offset; 738 data[i] = (igc_gstrings_stats[i].sizeof_stat == 739 sizeof(u64)) ? *(u64 *)p : *(u32 *)p; 740 } 741 for (j = 0; j < IGC_NETDEV_STATS_LEN; j++, i++) { 742 p = (char *)net_stats + igc_gstrings_net_stats[j].stat_offset; 743 data[i] = (igc_gstrings_net_stats[j].sizeof_stat == 744 sizeof(u64)) ? *(u64 *)p : *(u32 *)p; 745 } 746 for (j = 0; j < adapter->num_tx_queues; j++) { 747 u64 restart2; 748 749 ring = adapter->tx_ring[j]; 750 do { 751 start = u64_stats_fetch_begin_irq(&ring->tx_syncp); 752 data[i] = ring->tx_stats.packets; 753 data[i + 1] = ring->tx_stats.bytes; 754 data[i + 2] = ring->tx_stats.restart_queue; 755 } while (u64_stats_fetch_retry_irq(&ring->tx_syncp, start)); 756 do { 757 start = u64_stats_fetch_begin_irq(&ring->tx_syncp2); 758 restart2 = ring->tx_stats.restart_queue2; 759 } while (u64_stats_fetch_retry_irq(&ring->tx_syncp2, start)); 760 data[i + 2] += restart2; 761 762 i += IGC_TX_QUEUE_STATS_LEN; 763 } 764 for (j = 0; j < adapter->num_rx_queues; j++) { 765 ring = adapter->rx_ring[j]; 766 do { 767 start = u64_stats_fetch_begin_irq(&ring->rx_syncp); 768 data[i] = ring->rx_stats.packets; 769 data[i + 1] = ring->rx_stats.bytes; 770 data[i + 2] = ring->rx_stats.drops; 771 data[i + 3] = ring->rx_stats.csum_err; 772 data[i + 4] = ring->rx_stats.alloc_failed; 773 } while (u64_stats_fetch_retry_irq(&ring->rx_syncp, start)); 774 i += IGC_RX_QUEUE_STATS_LEN; 775 } 776 spin_unlock(&adapter->stats64_lock); 777 } 778 779 static int igc_get_coalesce(struct net_device *netdev, 780 struct ethtool_coalesce *ec) 781 { 782 struct igc_adapter *adapter = netdev_priv(netdev); 783 784 if (adapter->rx_itr_setting <= 3) 785 ec->rx_coalesce_usecs = adapter->rx_itr_setting; 786 else 787 ec->rx_coalesce_usecs = adapter->rx_itr_setting >> 2; 788 789 if (!(adapter->flags & IGC_FLAG_QUEUE_PAIRS)) { 790 if (adapter->tx_itr_setting <= 3) 791 ec->tx_coalesce_usecs = adapter->tx_itr_setting; 792 else 793 ec->tx_coalesce_usecs = adapter->tx_itr_setting >> 2; 794 } 795 796 return 0; 797 } 798 799 static int igc_set_coalesce(struct net_device *netdev, 800 struct ethtool_coalesce *ec) 801 { 802 struct igc_adapter *adapter = netdev_priv(netdev); 803 int i; 804 805 if (ec->rx_max_coalesced_frames || 806 ec->rx_coalesce_usecs_irq || 807 ec->rx_max_coalesced_frames_irq || 808 ec->tx_max_coalesced_frames || 809 ec->tx_coalesce_usecs_irq || 810 ec->stats_block_coalesce_usecs || 811 ec->use_adaptive_rx_coalesce || 812 ec->use_adaptive_tx_coalesce || 813 ec->pkt_rate_low || 814 ec->rx_coalesce_usecs_low || 815 ec->rx_max_coalesced_frames_low || 816 ec->tx_coalesce_usecs_low || 817 ec->tx_max_coalesced_frames_low || 818 ec->pkt_rate_high || 819 ec->rx_coalesce_usecs_high || 820 ec->rx_max_coalesced_frames_high || 821 ec->tx_coalesce_usecs_high || 822 ec->tx_max_coalesced_frames_high || 823 ec->rate_sample_interval) 824 return -ENOTSUPP; 825 826 if (ec->rx_coalesce_usecs > IGC_MAX_ITR_USECS || 827 (ec->rx_coalesce_usecs > 3 && 828 ec->rx_coalesce_usecs < IGC_MIN_ITR_USECS) || 829 ec->rx_coalesce_usecs == 2) 830 return -EINVAL; 831 832 if (ec->tx_coalesce_usecs > IGC_MAX_ITR_USECS || 833 (ec->tx_coalesce_usecs > 3 && 834 ec->tx_coalesce_usecs < IGC_MIN_ITR_USECS) || 835 ec->tx_coalesce_usecs == 2) 836 return -EINVAL; 837 838 if ((adapter->flags & IGC_FLAG_QUEUE_PAIRS) && ec->tx_coalesce_usecs) 839 return -EINVAL; 840 841 /* If ITR is disabled, disable DMAC */ 842 if (ec->rx_coalesce_usecs == 0) { 843 if (adapter->flags & IGC_FLAG_DMAC) 844 adapter->flags &= ~IGC_FLAG_DMAC; 845 } 846 847 /* convert to rate of irq's per second */ 848 if (ec->rx_coalesce_usecs && ec->rx_coalesce_usecs <= 3) 849 adapter->rx_itr_setting = ec->rx_coalesce_usecs; 850 else 851 adapter->rx_itr_setting = ec->rx_coalesce_usecs << 2; 852 853 /* convert to rate of irq's per second */ 854 if (adapter->flags & IGC_FLAG_QUEUE_PAIRS) 855 adapter->tx_itr_setting = adapter->rx_itr_setting; 856 else if (ec->tx_coalesce_usecs && ec->tx_coalesce_usecs <= 3) 857 adapter->tx_itr_setting = ec->tx_coalesce_usecs; 858 else 859 adapter->tx_itr_setting = ec->tx_coalesce_usecs << 2; 860 861 for (i = 0; i < adapter->num_q_vectors; i++) { 862 struct igc_q_vector *q_vector = adapter->q_vector[i]; 863 864 q_vector->tx.work_limit = adapter->tx_work_limit; 865 if (q_vector->rx.ring) 866 q_vector->itr_val = adapter->rx_itr_setting; 867 else 868 q_vector->itr_val = adapter->tx_itr_setting; 869 if (q_vector->itr_val && q_vector->itr_val <= 3) 870 q_vector->itr_val = IGC_START_ITR; 871 q_vector->set_itr = 1; 872 } 873 874 return 0; 875 } 876 877 #define ETHER_TYPE_FULL_MASK ((__force __be16)~0) 878 static int igc_get_ethtool_nfc_entry(struct igc_adapter *adapter, 879 struct ethtool_rxnfc *cmd) 880 { 881 struct ethtool_rx_flow_spec *fsp = &cmd->fs; 882 struct igc_nfc_filter *rule = NULL; 883 884 /* report total rule count */ 885 cmd->data = IGC_MAX_RXNFC_FILTERS; 886 887 hlist_for_each_entry(rule, &adapter->nfc_filter_list, nfc_node) { 888 if (fsp->location <= rule->sw_idx) 889 break; 890 } 891 892 if (!rule || fsp->location != rule->sw_idx) 893 return -EINVAL; 894 895 if (rule->filter.match_flags) { 896 fsp->flow_type = ETHER_FLOW; 897 fsp->ring_cookie = rule->action; 898 if (rule->filter.match_flags & IGC_FILTER_FLAG_ETHER_TYPE) { 899 fsp->h_u.ether_spec.h_proto = rule->filter.etype; 900 fsp->m_u.ether_spec.h_proto = ETHER_TYPE_FULL_MASK; 901 } 902 if (rule->filter.match_flags & IGC_FILTER_FLAG_VLAN_TCI) { 903 fsp->flow_type |= FLOW_EXT; 904 fsp->h_ext.vlan_tci = rule->filter.vlan_tci; 905 fsp->m_ext.vlan_tci = htons(VLAN_PRIO_MASK); 906 } 907 if (rule->filter.match_flags & IGC_FILTER_FLAG_DST_MAC_ADDR) { 908 ether_addr_copy(fsp->h_u.ether_spec.h_dest, 909 rule->filter.dst_addr); 910 /* As we only support matching by the full 911 * mask, return the mask to userspace 912 */ 913 eth_broadcast_addr(fsp->m_u.ether_spec.h_dest); 914 } 915 if (rule->filter.match_flags & IGC_FILTER_FLAG_SRC_MAC_ADDR) { 916 ether_addr_copy(fsp->h_u.ether_spec.h_source, 917 rule->filter.src_addr); 918 /* As we only support matching by the full 919 * mask, return the mask to userspace 920 */ 921 eth_broadcast_addr(fsp->m_u.ether_spec.h_source); 922 } 923 924 return 0; 925 } 926 return -EINVAL; 927 } 928 929 static int igc_get_ethtool_nfc_all(struct igc_adapter *adapter, 930 struct ethtool_rxnfc *cmd, 931 u32 *rule_locs) 932 { 933 struct igc_nfc_filter *rule; 934 int cnt = 0; 935 936 /* report total rule count */ 937 cmd->data = IGC_MAX_RXNFC_FILTERS; 938 939 hlist_for_each_entry(rule, &adapter->nfc_filter_list, nfc_node) { 940 if (cnt == cmd->rule_cnt) 941 return -EMSGSIZE; 942 rule_locs[cnt] = rule->sw_idx; 943 cnt++; 944 } 945 946 cmd->rule_cnt = cnt; 947 948 return 0; 949 } 950 951 static int igc_get_rss_hash_opts(struct igc_adapter *adapter, 952 struct ethtool_rxnfc *cmd) 953 { 954 cmd->data = 0; 955 956 /* Report default options for RSS on igc */ 957 switch (cmd->flow_type) { 958 case TCP_V4_FLOW: 959 cmd->data |= RXH_L4_B_0_1 | RXH_L4_B_2_3; 960 /* Fall through */ 961 case UDP_V4_FLOW: 962 if (adapter->flags & IGC_FLAG_RSS_FIELD_IPV4_UDP) 963 cmd->data |= RXH_L4_B_0_1 | RXH_L4_B_2_3; 964 /* Fall through */ 965 case SCTP_V4_FLOW: 966 /* Fall through */ 967 case AH_ESP_V4_FLOW: 968 /* Fall through */ 969 case AH_V4_FLOW: 970 /* Fall through */ 971 case ESP_V4_FLOW: 972 /* Fall through */ 973 case IPV4_FLOW: 974 cmd->data |= RXH_IP_SRC | RXH_IP_DST; 975 break; 976 case TCP_V6_FLOW: 977 cmd->data |= RXH_L4_B_0_1 | RXH_L4_B_2_3; 978 /* Fall through */ 979 case UDP_V6_FLOW: 980 if (adapter->flags & IGC_FLAG_RSS_FIELD_IPV6_UDP) 981 cmd->data |= RXH_L4_B_0_1 | RXH_L4_B_2_3; 982 /* Fall through */ 983 case SCTP_V6_FLOW: 984 /* Fall through */ 985 case AH_ESP_V6_FLOW: 986 /* Fall through */ 987 case AH_V6_FLOW: 988 /* Fall through */ 989 case ESP_V6_FLOW: 990 /* Fall through */ 991 case IPV6_FLOW: 992 cmd->data |= RXH_IP_SRC | RXH_IP_DST; 993 break; 994 default: 995 return -EINVAL; 996 } 997 998 return 0; 999 } 1000 1001 static int igc_get_rxnfc(struct net_device *dev, struct ethtool_rxnfc *cmd, 1002 u32 *rule_locs) 1003 { 1004 struct igc_adapter *adapter = netdev_priv(dev); 1005 int ret = -EOPNOTSUPP; 1006 1007 switch (cmd->cmd) { 1008 case ETHTOOL_GRXRINGS: 1009 cmd->data = adapter->num_rx_queues; 1010 ret = 0; 1011 break; 1012 case ETHTOOL_GRXCLSRLCNT: 1013 cmd->rule_cnt = adapter->nfc_filter_count; 1014 ret = 0; 1015 break; 1016 case ETHTOOL_GRXCLSRULE: 1017 ret = igc_get_ethtool_nfc_entry(adapter, cmd); 1018 break; 1019 case ETHTOOL_GRXCLSRLALL: 1020 ret = igc_get_ethtool_nfc_all(adapter, cmd, rule_locs); 1021 break; 1022 case ETHTOOL_GRXFH: 1023 ret = igc_get_rss_hash_opts(adapter, cmd); 1024 break; 1025 default: 1026 break; 1027 } 1028 1029 return ret; 1030 } 1031 1032 #define UDP_RSS_FLAGS (IGC_FLAG_RSS_FIELD_IPV4_UDP | \ 1033 IGC_FLAG_RSS_FIELD_IPV6_UDP) 1034 static int igc_set_rss_hash_opt(struct igc_adapter *adapter, 1035 struct ethtool_rxnfc *nfc) 1036 { 1037 u32 flags = adapter->flags; 1038 1039 /* RSS does not support anything other than hashing 1040 * to queues on src and dst IPs and ports 1041 */ 1042 if (nfc->data & ~(RXH_IP_SRC | RXH_IP_DST | 1043 RXH_L4_B_0_1 | RXH_L4_B_2_3)) 1044 return -EINVAL; 1045 1046 switch (nfc->flow_type) { 1047 case TCP_V4_FLOW: 1048 case TCP_V6_FLOW: 1049 if (!(nfc->data & RXH_IP_SRC) || 1050 !(nfc->data & RXH_IP_DST) || 1051 !(nfc->data & RXH_L4_B_0_1) || 1052 !(nfc->data & RXH_L4_B_2_3)) 1053 return -EINVAL; 1054 break; 1055 case UDP_V4_FLOW: 1056 if (!(nfc->data & RXH_IP_SRC) || 1057 !(nfc->data & RXH_IP_DST)) 1058 return -EINVAL; 1059 switch (nfc->data & (RXH_L4_B_0_1 | RXH_L4_B_2_3)) { 1060 case 0: 1061 flags &= ~IGC_FLAG_RSS_FIELD_IPV4_UDP; 1062 break; 1063 case (RXH_L4_B_0_1 | RXH_L4_B_2_3): 1064 flags |= IGC_FLAG_RSS_FIELD_IPV4_UDP; 1065 break; 1066 default: 1067 return -EINVAL; 1068 } 1069 break; 1070 case UDP_V6_FLOW: 1071 if (!(nfc->data & RXH_IP_SRC) || 1072 !(nfc->data & RXH_IP_DST)) 1073 return -EINVAL; 1074 switch (nfc->data & (RXH_L4_B_0_1 | RXH_L4_B_2_3)) { 1075 case 0: 1076 flags &= ~IGC_FLAG_RSS_FIELD_IPV6_UDP; 1077 break; 1078 case (RXH_L4_B_0_1 | RXH_L4_B_2_3): 1079 flags |= IGC_FLAG_RSS_FIELD_IPV6_UDP; 1080 break; 1081 default: 1082 return -EINVAL; 1083 } 1084 break; 1085 case AH_ESP_V4_FLOW: 1086 case AH_V4_FLOW: 1087 case ESP_V4_FLOW: 1088 case SCTP_V4_FLOW: 1089 case AH_ESP_V6_FLOW: 1090 case AH_V6_FLOW: 1091 case ESP_V6_FLOW: 1092 case SCTP_V6_FLOW: 1093 if (!(nfc->data & RXH_IP_SRC) || 1094 !(nfc->data & RXH_IP_DST) || 1095 (nfc->data & RXH_L4_B_0_1) || 1096 (nfc->data & RXH_L4_B_2_3)) 1097 return -EINVAL; 1098 break; 1099 default: 1100 return -EINVAL; 1101 } 1102 1103 /* if we changed something we need to update flags */ 1104 if (flags != adapter->flags) { 1105 struct igc_hw *hw = &adapter->hw; 1106 u32 mrqc = rd32(IGC_MRQC); 1107 1108 if ((flags & UDP_RSS_FLAGS) && 1109 !(adapter->flags & UDP_RSS_FLAGS)) 1110 dev_err(&adapter->pdev->dev, 1111 "enabling UDP RSS: fragmented packets may arrive out of order to the stack above\n"); 1112 1113 adapter->flags = flags; 1114 1115 /* Perform hash on these packet types */ 1116 mrqc |= IGC_MRQC_RSS_FIELD_IPV4 | 1117 IGC_MRQC_RSS_FIELD_IPV4_TCP | 1118 IGC_MRQC_RSS_FIELD_IPV6 | 1119 IGC_MRQC_RSS_FIELD_IPV6_TCP; 1120 1121 mrqc &= ~(IGC_MRQC_RSS_FIELD_IPV4_UDP | 1122 IGC_MRQC_RSS_FIELD_IPV6_UDP); 1123 1124 if (flags & IGC_FLAG_RSS_FIELD_IPV4_UDP) 1125 mrqc |= IGC_MRQC_RSS_FIELD_IPV4_UDP; 1126 1127 if (flags & IGC_FLAG_RSS_FIELD_IPV6_UDP) 1128 mrqc |= IGC_MRQC_RSS_FIELD_IPV6_UDP; 1129 1130 wr32(IGC_MRQC, mrqc); 1131 } 1132 1133 return 0; 1134 } 1135 1136 static int igc_rxnfc_write_etype_filter(struct igc_adapter *adapter, 1137 struct igc_nfc_filter *input) 1138 { 1139 struct igc_hw *hw = &adapter->hw; 1140 u8 i; 1141 u32 etqf; 1142 u16 etype; 1143 1144 /* find an empty etype filter register */ 1145 for (i = 0; i < MAX_ETYPE_FILTER; ++i) { 1146 if (!adapter->etype_bitmap[i]) 1147 break; 1148 } 1149 if (i == MAX_ETYPE_FILTER) { 1150 dev_err(&adapter->pdev->dev, "ethtool -N: etype filters are all used.\n"); 1151 return -EINVAL; 1152 } 1153 1154 adapter->etype_bitmap[i] = true; 1155 1156 etqf = rd32(IGC_ETQF(i)); 1157 etype = ntohs(input->filter.etype & ETHER_TYPE_FULL_MASK); 1158 1159 etqf |= IGC_ETQF_FILTER_ENABLE; 1160 etqf &= ~IGC_ETQF_ETYPE_MASK; 1161 etqf |= (etype & IGC_ETQF_ETYPE_MASK); 1162 1163 etqf &= ~IGC_ETQF_QUEUE_MASK; 1164 etqf |= ((input->action << IGC_ETQF_QUEUE_SHIFT) 1165 & IGC_ETQF_QUEUE_MASK); 1166 etqf |= IGC_ETQF_QUEUE_ENABLE; 1167 1168 wr32(IGC_ETQF(i), etqf); 1169 1170 input->etype_reg_index = i; 1171 1172 return 0; 1173 } 1174 1175 static int igc_rxnfc_write_vlan_prio_filter(struct igc_adapter *adapter, 1176 struct igc_nfc_filter *input) 1177 { 1178 struct igc_hw *hw = &adapter->hw; 1179 u8 vlan_priority; 1180 u16 queue_index; 1181 u32 vlapqf; 1182 1183 vlapqf = rd32(IGC_VLAPQF); 1184 vlan_priority = (ntohs(input->filter.vlan_tci) & VLAN_PRIO_MASK) 1185 >> VLAN_PRIO_SHIFT; 1186 queue_index = (vlapqf >> (vlan_priority * 4)) & IGC_VLAPQF_QUEUE_MASK; 1187 1188 /* check whether this vlan prio is already set */ 1189 if (vlapqf & IGC_VLAPQF_P_VALID(vlan_priority) && 1190 queue_index != input->action) { 1191 dev_err(&adapter->pdev->dev, "ethtool rxnfc set vlan prio filter failed.\n"); 1192 return -EEXIST; 1193 } 1194 1195 vlapqf |= IGC_VLAPQF_P_VALID(vlan_priority); 1196 vlapqf |= IGC_VLAPQF_QUEUE_SEL(vlan_priority, input->action); 1197 1198 wr32(IGC_VLAPQF, vlapqf); 1199 1200 return 0; 1201 } 1202 1203 int igc_add_filter(struct igc_adapter *adapter, struct igc_nfc_filter *input) 1204 { 1205 struct igc_hw *hw = &adapter->hw; 1206 int err = -EINVAL; 1207 1208 if (hw->mac.type == igc_i225 && 1209 !(input->filter.match_flags & ~IGC_FILTER_FLAG_SRC_MAC_ADDR)) { 1210 dev_err(&adapter->pdev->dev, 1211 "i225 doesn't support flow classification rules specifying only source addresses.\n"); 1212 return -EOPNOTSUPP; 1213 } 1214 1215 if (input->filter.match_flags & IGC_FILTER_FLAG_ETHER_TYPE) { 1216 err = igc_rxnfc_write_etype_filter(adapter, input); 1217 if (err) 1218 return err; 1219 } 1220 1221 if (input->filter.match_flags & IGC_FILTER_FLAG_DST_MAC_ADDR) { 1222 err = igc_add_mac_steering_filter(adapter, 1223 input->filter.dst_addr, 1224 input->action, 0); 1225 err = min_t(int, err, 0); 1226 if (err) 1227 return err; 1228 } 1229 1230 if (input->filter.match_flags & IGC_FILTER_FLAG_SRC_MAC_ADDR) { 1231 err = igc_add_mac_steering_filter(adapter, 1232 input->filter.src_addr, 1233 input->action, 1234 IGC_MAC_STATE_SRC_ADDR); 1235 err = min_t(int, err, 0); 1236 if (err) 1237 return err; 1238 } 1239 1240 if (input->filter.match_flags & IGC_FILTER_FLAG_VLAN_TCI) 1241 err = igc_rxnfc_write_vlan_prio_filter(adapter, input); 1242 1243 return err; 1244 } 1245 1246 static void igc_clear_etype_filter_regs(struct igc_adapter *adapter, 1247 u16 reg_index) 1248 { 1249 struct igc_hw *hw = &adapter->hw; 1250 u32 etqf = rd32(IGC_ETQF(reg_index)); 1251 1252 etqf &= ~IGC_ETQF_QUEUE_ENABLE; 1253 etqf &= ~IGC_ETQF_QUEUE_MASK; 1254 etqf &= ~IGC_ETQF_FILTER_ENABLE; 1255 1256 wr32(IGC_ETQF(reg_index), etqf); 1257 1258 adapter->etype_bitmap[reg_index] = false; 1259 } 1260 1261 static void igc_clear_vlan_prio_filter(struct igc_adapter *adapter, 1262 u16 vlan_tci) 1263 { 1264 struct igc_hw *hw = &adapter->hw; 1265 u8 vlan_priority; 1266 u32 vlapqf; 1267 1268 vlan_priority = (vlan_tci & VLAN_PRIO_MASK) >> VLAN_PRIO_SHIFT; 1269 1270 vlapqf = rd32(IGC_VLAPQF); 1271 vlapqf &= ~IGC_VLAPQF_P_VALID(vlan_priority); 1272 vlapqf &= ~IGC_VLAPQF_QUEUE_SEL(vlan_priority, 1273 IGC_VLAPQF_QUEUE_MASK); 1274 1275 wr32(IGC_VLAPQF, vlapqf); 1276 } 1277 1278 int igc_erase_filter(struct igc_adapter *adapter, struct igc_nfc_filter *input) 1279 { 1280 if (input->filter.match_flags & IGC_FILTER_FLAG_ETHER_TYPE) 1281 igc_clear_etype_filter_regs(adapter, 1282 input->etype_reg_index); 1283 1284 if (input->filter.match_flags & IGC_FILTER_FLAG_VLAN_TCI) 1285 igc_clear_vlan_prio_filter(adapter, 1286 ntohs(input->filter.vlan_tci)); 1287 1288 if (input->filter.match_flags & IGC_FILTER_FLAG_SRC_MAC_ADDR) 1289 igc_del_mac_steering_filter(adapter, input->filter.src_addr, 1290 input->action, 1291 IGC_MAC_STATE_SRC_ADDR); 1292 1293 if (input->filter.match_flags & IGC_FILTER_FLAG_DST_MAC_ADDR) 1294 igc_del_mac_steering_filter(adapter, input->filter.dst_addr, 1295 input->action, 0); 1296 1297 return 0; 1298 } 1299 1300 static int igc_update_ethtool_nfc_entry(struct igc_adapter *adapter, 1301 struct igc_nfc_filter *input, 1302 u16 sw_idx) 1303 { 1304 struct igc_nfc_filter *rule, *parent; 1305 int err = -EINVAL; 1306 1307 parent = NULL; 1308 rule = NULL; 1309 1310 hlist_for_each_entry(rule, &adapter->nfc_filter_list, nfc_node) { 1311 /* hash found, or no matching entry */ 1312 if (rule->sw_idx >= sw_idx) 1313 break; 1314 parent = rule; 1315 } 1316 1317 /* if there is an old rule occupying our place remove it */ 1318 if (rule && rule->sw_idx == sw_idx) { 1319 if (!input) 1320 err = igc_erase_filter(adapter, rule); 1321 1322 hlist_del(&rule->nfc_node); 1323 kfree(rule); 1324 adapter->nfc_filter_count--; 1325 } 1326 1327 /* If no input this was a delete, err should be 0 if a rule was 1328 * successfully found and removed from the list else -EINVAL 1329 */ 1330 if (!input) 1331 return err; 1332 1333 /* initialize node */ 1334 INIT_HLIST_NODE(&input->nfc_node); 1335 1336 /* add filter to the list */ 1337 if (parent) 1338 hlist_add_behind(&input->nfc_node, &parent->nfc_node); 1339 else 1340 hlist_add_head(&input->nfc_node, &adapter->nfc_filter_list); 1341 1342 /* update counts */ 1343 adapter->nfc_filter_count++; 1344 1345 return 0; 1346 } 1347 1348 static int igc_add_ethtool_nfc_entry(struct igc_adapter *adapter, 1349 struct ethtool_rxnfc *cmd) 1350 { 1351 struct net_device *netdev = adapter->netdev; 1352 struct ethtool_rx_flow_spec *fsp = 1353 (struct ethtool_rx_flow_spec *)&cmd->fs; 1354 struct igc_nfc_filter *input, *rule; 1355 int err = 0; 1356 1357 if (!(netdev->hw_features & NETIF_F_NTUPLE)) 1358 return -EOPNOTSUPP; 1359 1360 /* Don't allow programming if the action is a queue greater than 1361 * the number of online Rx queues. 1362 */ 1363 if (fsp->ring_cookie == RX_CLS_FLOW_DISC || 1364 fsp->ring_cookie >= adapter->num_rx_queues) { 1365 dev_err(&adapter->pdev->dev, "ethtool -N: The specified action is invalid\n"); 1366 return -EINVAL; 1367 } 1368 1369 /* Don't allow indexes to exist outside of available space */ 1370 if (fsp->location >= IGC_MAX_RXNFC_FILTERS) { 1371 dev_err(&adapter->pdev->dev, "Location out of range\n"); 1372 return -EINVAL; 1373 } 1374 1375 if ((fsp->flow_type & ~FLOW_EXT) != ETHER_FLOW) 1376 return -EINVAL; 1377 1378 input = kzalloc(sizeof(*input), GFP_KERNEL); 1379 if (!input) 1380 return -ENOMEM; 1381 1382 if (fsp->m_u.ether_spec.h_proto == ETHER_TYPE_FULL_MASK) { 1383 input->filter.etype = fsp->h_u.ether_spec.h_proto; 1384 input->filter.match_flags = IGC_FILTER_FLAG_ETHER_TYPE; 1385 } 1386 1387 /* Only support matching addresses by the full mask */ 1388 if (is_broadcast_ether_addr(fsp->m_u.ether_spec.h_source)) { 1389 input->filter.match_flags |= IGC_FILTER_FLAG_SRC_MAC_ADDR; 1390 ether_addr_copy(input->filter.src_addr, 1391 fsp->h_u.ether_spec.h_source); 1392 } 1393 1394 /* Only support matching addresses by the full mask */ 1395 if (is_broadcast_ether_addr(fsp->m_u.ether_spec.h_dest)) { 1396 input->filter.match_flags |= IGC_FILTER_FLAG_DST_MAC_ADDR; 1397 ether_addr_copy(input->filter.dst_addr, 1398 fsp->h_u.ether_spec.h_dest); 1399 } 1400 1401 if ((fsp->flow_type & FLOW_EXT) && fsp->m_ext.vlan_tci) { 1402 if (fsp->m_ext.vlan_tci != htons(VLAN_PRIO_MASK)) { 1403 err = -EINVAL; 1404 goto err_out; 1405 } 1406 input->filter.vlan_tci = fsp->h_ext.vlan_tci; 1407 input->filter.match_flags |= IGC_FILTER_FLAG_VLAN_TCI; 1408 } 1409 1410 input->action = fsp->ring_cookie; 1411 input->sw_idx = fsp->location; 1412 1413 spin_lock(&adapter->nfc_lock); 1414 1415 hlist_for_each_entry(rule, &adapter->nfc_filter_list, nfc_node) { 1416 if (!memcmp(&input->filter, &rule->filter, 1417 sizeof(input->filter))) { 1418 err = -EEXIST; 1419 dev_err(&adapter->pdev->dev, 1420 "ethtool: this filter is already set\n"); 1421 goto err_out_w_lock; 1422 } 1423 } 1424 1425 err = igc_add_filter(adapter, input); 1426 if (err) 1427 goto err_out_w_lock; 1428 1429 igc_update_ethtool_nfc_entry(adapter, input, input->sw_idx); 1430 1431 spin_unlock(&adapter->nfc_lock); 1432 return 0; 1433 1434 err_out_w_lock: 1435 spin_unlock(&adapter->nfc_lock); 1436 err_out: 1437 kfree(input); 1438 return err; 1439 } 1440 1441 static int igc_del_ethtool_nfc_entry(struct igc_adapter *adapter, 1442 struct ethtool_rxnfc *cmd) 1443 { 1444 struct ethtool_rx_flow_spec *fsp = 1445 (struct ethtool_rx_flow_spec *)&cmd->fs; 1446 int err; 1447 1448 spin_lock(&adapter->nfc_lock); 1449 err = igc_update_ethtool_nfc_entry(adapter, NULL, fsp->location); 1450 spin_unlock(&adapter->nfc_lock); 1451 1452 return err; 1453 } 1454 1455 static int igc_set_rxnfc(struct net_device *dev, struct ethtool_rxnfc *cmd) 1456 { 1457 struct igc_adapter *adapter = netdev_priv(dev); 1458 int ret = -EOPNOTSUPP; 1459 1460 switch (cmd->cmd) { 1461 case ETHTOOL_SRXFH: 1462 ret = igc_set_rss_hash_opt(adapter, cmd); 1463 break; 1464 case ETHTOOL_SRXCLSRLINS: 1465 ret = igc_add_ethtool_nfc_entry(adapter, cmd); 1466 break; 1467 case ETHTOOL_SRXCLSRLDEL: 1468 ret = igc_del_ethtool_nfc_entry(adapter, cmd); 1469 default: 1470 break; 1471 } 1472 1473 return ret; 1474 } 1475 1476 void igc_write_rss_indir_tbl(struct igc_adapter *adapter) 1477 { 1478 struct igc_hw *hw = &adapter->hw; 1479 u32 reg = IGC_RETA(0); 1480 u32 shift = 0; 1481 int i = 0; 1482 1483 while (i < IGC_RETA_SIZE) { 1484 u32 val = 0; 1485 int j; 1486 1487 for (j = 3; j >= 0; j--) { 1488 val <<= 8; 1489 val |= adapter->rss_indir_tbl[i + j]; 1490 } 1491 1492 wr32(reg, val << shift); 1493 reg += 4; 1494 i += 4; 1495 } 1496 } 1497 1498 static u32 igc_get_rxfh_indir_size(struct net_device *netdev) 1499 { 1500 return IGC_RETA_SIZE; 1501 } 1502 1503 static int igc_get_rxfh(struct net_device *netdev, u32 *indir, u8 *key, 1504 u8 *hfunc) 1505 { 1506 struct igc_adapter *adapter = netdev_priv(netdev); 1507 int i; 1508 1509 if (hfunc) 1510 *hfunc = ETH_RSS_HASH_TOP; 1511 if (!indir) 1512 return 0; 1513 for (i = 0; i < IGC_RETA_SIZE; i++) 1514 indir[i] = adapter->rss_indir_tbl[i]; 1515 1516 return 0; 1517 } 1518 1519 static int igc_set_rxfh(struct net_device *netdev, const u32 *indir, 1520 const u8 *key, const u8 hfunc) 1521 { 1522 struct igc_adapter *adapter = netdev_priv(netdev); 1523 u32 num_queues; 1524 int i; 1525 1526 /* We do not allow change in unsupported parameters */ 1527 if (key || 1528 (hfunc != ETH_RSS_HASH_NO_CHANGE && hfunc != ETH_RSS_HASH_TOP)) 1529 return -EOPNOTSUPP; 1530 if (!indir) 1531 return 0; 1532 1533 num_queues = adapter->rss_queues; 1534 1535 /* Verify user input. */ 1536 for (i = 0; i < IGC_RETA_SIZE; i++) 1537 if (indir[i] >= num_queues) 1538 return -EINVAL; 1539 1540 for (i = 0; i < IGC_RETA_SIZE; i++) 1541 adapter->rss_indir_tbl[i] = indir[i]; 1542 1543 igc_write_rss_indir_tbl(adapter); 1544 1545 return 0; 1546 } 1547 1548 static unsigned int igc_max_channels(struct igc_adapter *adapter) 1549 { 1550 return igc_get_max_rss_queues(adapter); 1551 } 1552 1553 static void igc_get_channels(struct net_device *netdev, 1554 struct ethtool_channels *ch) 1555 { 1556 struct igc_adapter *adapter = netdev_priv(netdev); 1557 1558 /* Report maximum channels */ 1559 ch->max_combined = igc_max_channels(adapter); 1560 1561 /* Report info for other vector */ 1562 if (adapter->flags & IGC_FLAG_HAS_MSIX) { 1563 ch->max_other = NON_Q_VECTORS; 1564 ch->other_count = NON_Q_VECTORS; 1565 } 1566 1567 ch->combined_count = adapter->rss_queues; 1568 } 1569 1570 static int igc_set_channels(struct net_device *netdev, 1571 struct ethtool_channels *ch) 1572 { 1573 struct igc_adapter *adapter = netdev_priv(netdev); 1574 unsigned int count = ch->combined_count; 1575 unsigned int max_combined = 0; 1576 1577 /* Verify they are not requesting separate vectors */ 1578 if (!count || ch->rx_count || ch->tx_count) 1579 return -EINVAL; 1580 1581 /* Verify other_count is valid and has not been changed */ 1582 if (ch->other_count != NON_Q_VECTORS) 1583 return -EINVAL; 1584 1585 /* Verify the number of channels doesn't exceed hw limits */ 1586 max_combined = igc_max_channels(adapter); 1587 if (count > max_combined) 1588 return -EINVAL; 1589 1590 if (count != adapter->rss_queues) { 1591 adapter->rss_queues = count; 1592 igc_set_flag_queue_pairs(adapter, max_combined); 1593 1594 /* Hardware has to reinitialize queues and interrupts to 1595 * match the new configuration. 1596 */ 1597 return igc_reinit_queues(adapter); 1598 } 1599 1600 return 0; 1601 } 1602 1603 static u32 igc_get_priv_flags(struct net_device *netdev) 1604 { 1605 struct igc_adapter *adapter = netdev_priv(netdev); 1606 u32 priv_flags = 0; 1607 1608 if (adapter->flags & IGC_FLAG_RX_LEGACY) 1609 priv_flags |= IGC_PRIV_FLAGS_LEGACY_RX; 1610 1611 return priv_flags; 1612 } 1613 1614 static int igc_set_priv_flags(struct net_device *netdev, u32 priv_flags) 1615 { 1616 struct igc_adapter *adapter = netdev_priv(netdev); 1617 unsigned int flags = adapter->flags; 1618 1619 flags &= ~IGC_FLAG_RX_LEGACY; 1620 if (priv_flags & IGC_PRIV_FLAGS_LEGACY_RX) 1621 flags |= IGC_FLAG_RX_LEGACY; 1622 1623 if (flags != adapter->flags) { 1624 adapter->flags = flags; 1625 1626 /* reset interface to repopulate queues */ 1627 if (netif_running(netdev)) 1628 igc_reinit_locked(adapter); 1629 } 1630 1631 return 0; 1632 } 1633 1634 static int igc_ethtool_begin(struct net_device *netdev) 1635 { 1636 struct igc_adapter *adapter = netdev_priv(netdev); 1637 1638 pm_runtime_get_sync(&adapter->pdev->dev); 1639 return 0; 1640 } 1641 1642 static void igc_ethtool_complete(struct net_device *netdev) 1643 { 1644 struct igc_adapter *adapter = netdev_priv(netdev); 1645 1646 pm_runtime_put(&adapter->pdev->dev); 1647 } 1648 1649 static int igc_get_link_ksettings(struct net_device *netdev, 1650 struct ethtool_link_ksettings *cmd) 1651 { 1652 struct igc_adapter *adapter = netdev_priv(netdev); 1653 struct igc_hw *hw = &adapter->hw; 1654 u32 status; 1655 u32 speed; 1656 1657 ethtool_link_ksettings_zero_link_mode(cmd, supported); 1658 ethtool_link_ksettings_zero_link_mode(cmd, advertising); 1659 1660 /* supported link modes */ 1661 ethtool_link_ksettings_add_link_mode(cmd, supported, 10baseT_Half); 1662 ethtool_link_ksettings_add_link_mode(cmd, supported, 10baseT_Full); 1663 ethtool_link_ksettings_add_link_mode(cmd, supported, 100baseT_Half); 1664 ethtool_link_ksettings_add_link_mode(cmd, supported, 100baseT_Full); 1665 ethtool_link_ksettings_add_link_mode(cmd, supported, 1000baseT_Full); 1666 ethtool_link_ksettings_add_link_mode(cmd, supported, 2500baseT_Full); 1667 1668 /* twisted pair */ 1669 cmd->base.port = PORT_TP; 1670 cmd->base.phy_address = hw->phy.addr; 1671 1672 /* advertising link modes */ 1673 ethtool_link_ksettings_add_link_mode(cmd, advertising, 10baseT_Half); 1674 ethtool_link_ksettings_add_link_mode(cmd, advertising, 10baseT_Full); 1675 ethtool_link_ksettings_add_link_mode(cmd, advertising, 100baseT_Half); 1676 ethtool_link_ksettings_add_link_mode(cmd, advertising, 100baseT_Full); 1677 ethtool_link_ksettings_add_link_mode(cmd, advertising, 1000baseT_Full); 1678 ethtool_link_ksettings_add_link_mode(cmd, advertising, 2500baseT_Full); 1679 1680 /* set autoneg settings */ 1681 if (hw->mac.autoneg == 1) { 1682 ethtool_link_ksettings_add_link_mode(cmd, supported, Autoneg); 1683 ethtool_link_ksettings_add_link_mode(cmd, advertising, 1684 Autoneg); 1685 } 1686 1687 switch (hw->fc.requested_mode) { 1688 case igc_fc_full: 1689 ethtool_link_ksettings_add_link_mode(cmd, advertising, Pause); 1690 break; 1691 case igc_fc_rx_pause: 1692 ethtool_link_ksettings_add_link_mode(cmd, advertising, Pause); 1693 ethtool_link_ksettings_add_link_mode(cmd, advertising, 1694 Asym_Pause); 1695 break; 1696 case igc_fc_tx_pause: 1697 ethtool_link_ksettings_add_link_mode(cmd, advertising, 1698 Asym_Pause); 1699 break; 1700 default: 1701 ethtool_link_ksettings_add_link_mode(cmd, advertising, Pause); 1702 ethtool_link_ksettings_add_link_mode(cmd, advertising, 1703 Asym_Pause); 1704 } 1705 1706 status = rd32(IGC_STATUS); 1707 1708 if (status & IGC_STATUS_LU) { 1709 if (status & IGC_STATUS_SPEED_1000) { 1710 /* For I225, STATUS will indicate 1G speed in both 1711 * 1 Gbps and 2.5 Gbps link modes. 1712 * An additional bit is used 1713 * to differentiate between 1 Gbps and 2.5 Gbps. 1714 */ 1715 if (hw->mac.type == igc_i225 && 1716 (status & IGC_STATUS_SPEED_2500)) { 1717 speed = SPEED_2500; 1718 } else { 1719 speed = SPEED_1000; 1720 } 1721 } else if (status & IGC_STATUS_SPEED_100) { 1722 speed = SPEED_100; 1723 } else { 1724 speed = SPEED_10; 1725 } 1726 if ((status & IGC_STATUS_FD) || 1727 hw->phy.media_type != igc_media_type_copper) 1728 cmd->base.duplex = DUPLEX_FULL; 1729 else 1730 cmd->base.duplex = DUPLEX_HALF; 1731 } else { 1732 speed = SPEED_UNKNOWN; 1733 cmd->base.duplex = DUPLEX_UNKNOWN; 1734 } 1735 cmd->base.speed = speed; 1736 if (hw->mac.autoneg) 1737 cmd->base.autoneg = AUTONEG_ENABLE; 1738 else 1739 cmd->base.autoneg = AUTONEG_DISABLE; 1740 1741 /* MDI-X => 2; MDI =>1; Invalid =>0 */ 1742 if (hw->phy.media_type == igc_media_type_copper) 1743 cmd->base.eth_tp_mdix = hw->phy.is_mdix ? ETH_TP_MDI_X : 1744 ETH_TP_MDI; 1745 else 1746 cmd->base.eth_tp_mdix = ETH_TP_MDI_INVALID; 1747 1748 if (hw->phy.mdix == AUTO_ALL_MODES) 1749 cmd->base.eth_tp_mdix_ctrl = ETH_TP_MDI_AUTO; 1750 else 1751 cmd->base.eth_tp_mdix_ctrl = hw->phy.mdix; 1752 1753 return 0; 1754 } 1755 1756 static int igc_set_link_ksettings(struct net_device *netdev, 1757 const struct ethtool_link_ksettings *cmd) 1758 { 1759 struct igc_adapter *adapter = netdev_priv(netdev); 1760 struct igc_hw *hw = &adapter->hw; 1761 u32 advertising; 1762 1763 /* When adapter in resetting mode, autoneg/speed/duplex 1764 * cannot be changed 1765 */ 1766 if (igc_check_reset_block(hw)) { 1767 dev_err(&adapter->pdev->dev, 1768 "Cannot change link characteristics when reset is active.\n"); 1769 return -EINVAL; 1770 } 1771 1772 /* MDI setting is only allowed when autoneg enabled because 1773 * some hardware doesn't allow MDI setting when speed or 1774 * duplex is forced. 1775 */ 1776 if (cmd->base.eth_tp_mdix_ctrl) { 1777 if (cmd->base.eth_tp_mdix_ctrl != ETH_TP_MDI_AUTO && 1778 cmd->base.autoneg != AUTONEG_ENABLE) { 1779 dev_err(&adapter->pdev->dev, "forcing MDI/MDI-X state is not supported when link speed and/or duplex are forced\n"); 1780 return -EINVAL; 1781 } 1782 } 1783 1784 while (test_and_set_bit(__IGC_RESETTING, &adapter->state)) 1785 usleep_range(1000, 2000); 1786 1787 ethtool_convert_link_mode_to_legacy_u32(&advertising, 1788 cmd->link_modes.advertising); 1789 1790 if (cmd->base.autoneg == AUTONEG_ENABLE) { 1791 hw->mac.autoneg = 1; 1792 hw->phy.autoneg_advertised = advertising; 1793 if (adapter->fc_autoneg) 1794 hw->fc.requested_mode = igc_fc_default; 1795 } else { 1796 /* calling this overrides forced MDI setting */ 1797 dev_info(&adapter->pdev->dev, 1798 "Force mode currently not supported\n"); 1799 } 1800 1801 /* MDI-X => 2; MDI => 1; Auto => 3 */ 1802 if (cmd->base.eth_tp_mdix_ctrl) { 1803 /* fix up the value for auto (3 => 0) as zero is mapped 1804 * internally to auto 1805 */ 1806 if (cmd->base.eth_tp_mdix_ctrl == ETH_TP_MDI_AUTO) 1807 hw->phy.mdix = AUTO_ALL_MODES; 1808 else 1809 hw->phy.mdix = cmd->base.eth_tp_mdix_ctrl; 1810 } 1811 1812 /* reset the link */ 1813 if (netif_running(adapter->netdev)) { 1814 igc_down(adapter); 1815 igc_up(adapter); 1816 } else { 1817 igc_reset(adapter); 1818 } 1819 1820 clear_bit(__IGC_RESETTING, &adapter->state); 1821 1822 return 0; 1823 } 1824 1825 static const struct ethtool_ops igc_ethtool_ops = { 1826 .get_drvinfo = igc_get_drvinfo, 1827 .get_regs_len = igc_get_regs_len, 1828 .get_regs = igc_get_regs, 1829 .get_msglevel = igc_get_msglevel, 1830 .set_msglevel = igc_set_msglevel, 1831 .nway_reset = igc_nway_reset, 1832 .get_link = igc_get_link, 1833 .get_eeprom_len = igc_get_eeprom_len, 1834 .get_eeprom = igc_get_eeprom, 1835 .set_eeprom = igc_set_eeprom, 1836 .get_ringparam = igc_get_ringparam, 1837 .set_ringparam = igc_set_ringparam, 1838 .get_pauseparam = igc_get_pauseparam, 1839 .set_pauseparam = igc_set_pauseparam, 1840 .get_strings = igc_get_strings, 1841 .get_sset_count = igc_get_sset_count, 1842 .get_ethtool_stats = igc_get_ethtool_stats, 1843 .get_coalesce = igc_get_coalesce, 1844 .set_coalesce = igc_set_coalesce, 1845 .get_rxnfc = igc_get_rxnfc, 1846 .set_rxnfc = igc_set_rxnfc, 1847 .get_rxfh_indir_size = igc_get_rxfh_indir_size, 1848 .get_rxfh = igc_get_rxfh, 1849 .set_rxfh = igc_set_rxfh, 1850 .get_channels = igc_get_channels, 1851 .set_channels = igc_set_channels, 1852 .get_priv_flags = igc_get_priv_flags, 1853 .set_priv_flags = igc_set_priv_flags, 1854 .begin = igc_ethtool_begin, 1855 .complete = igc_ethtool_complete, 1856 .get_link_ksettings = igc_get_link_ksettings, 1857 .set_link_ksettings = igc_set_link_ksettings, 1858 }; 1859 1860 void igc_set_ethtool_ops(struct net_device *netdev) 1861 { 1862 netdev->ethtool_ops = &igc_ethtool_ops; 1863 } 1864