1 // SPDX-License-Identifier: GPL-2.0 2 /* Copyright (c) 2018, Intel Corporation. */ 3 4 /* ethtool support for ice */ 5 6 #include "ice.h" 7 #include "ice_flow.h" 8 #include "ice_lib.h" 9 #include "ice_dcb_lib.h" 10 11 struct ice_stats { 12 char stat_string[ETH_GSTRING_LEN]; 13 int sizeof_stat; 14 int stat_offset; 15 }; 16 17 #define ICE_STAT(_type, _name, _stat) { \ 18 .stat_string = _name, \ 19 .sizeof_stat = sizeof_field(_type, _stat), \ 20 .stat_offset = offsetof(_type, _stat) \ 21 } 22 23 #define ICE_VSI_STAT(_name, _stat) \ 24 ICE_STAT(struct ice_vsi, _name, _stat) 25 #define ICE_PF_STAT(_name, _stat) \ 26 ICE_STAT(struct ice_pf, _name, _stat) 27 28 static int ice_q_stats_len(struct net_device *netdev) 29 { 30 struct ice_netdev_priv *np = netdev_priv(netdev); 31 32 return ((np->vsi->alloc_txq + np->vsi->alloc_rxq) * 33 (sizeof(struct ice_q_stats) / sizeof(u64))); 34 } 35 36 #define ICE_PF_STATS_LEN ARRAY_SIZE(ice_gstrings_pf_stats) 37 #define ICE_VSI_STATS_LEN ARRAY_SIZE(ice_gstrings_vsi_stats) 38 39 #define ICE_PFC_STATS_LEN ( \ 40 (sizeof_field(struct ice_pf, stats.priority_xoff_rx) + \ 41 sizeof_field(struct ice_pf, stats.priority_xon_rx) + \ 42 sizeof_field(struct ice_pf, stats.priority_xoff_tx) + \ 43 sizeof_field(struct ice_pf, stats.priority_xon_tx)) \ 44 / sizeof(u64)) 45 #define ICE_ALL_STATS_LEN(n) (ICE_PF_STATS_LEN + ICE_PFC_STATS_LEN + \ 46 ICE_VSI_STATS_LEN + ice_q_stats_len(n)) 47 48 static const struct ice_stats ice_gstrings_vsi_stats[] = { 49 ICE_VSI_STAT("rx_unicast", eth_stats.rx_unicast), 50 ICE_VSI_STAT("tx_unicast", eth_stats.tx_unicast), 51 ICE_VSI_STAT("rx_multicast", eth_stats.rx_multicast), 52 ICE_VSI_STAT("tx_multicast", eth_stats.tx_multicast), 53 ICE_VSI_STAT("rx_broadcast", eth_stats.rx_broadcast), 54 ICE_VSI_STAT("tx_broadcast", eth_stats.tx_broadcast), 55 ICE_VSI_STAT("rx_bytes", eth_stats.rx_bytes), 56 ICE_VSI_STAT("tx_bytes", eth_stats.tx_bytes), 57 ICE_VSI_STAT("rx_dropped", eth_stats.rx_discards), 58 ICE_VSI_STAT("rx_unknown_protocol", eth_stats.rx_unknown_protocol), 59 ICE_VSI_STAT("rx_alloc_fail", rx_buf_failed), 60 ICE_VSI_STAT("rx_pg_alloc_fail", rx_page_failed), 61 ICE_VSI_STAT("tx_errors", eth_stats.tx_errors), 62 ICE_VSI_STAT("tx_linearize", tx_linearize), 63 }; 64 65 enum ice_ethtool_test_id { 66 ICE_ETH_TEST_REG = 0, 67 ICE_ETH_TEST_EEPROM, 68 ICE_ETH_TEST_INTR, 69 ICE_ETH_TEST_LOOP, 70 ICE_ETH_TEST_LINK, 71 }; 72 73 static const char ice_gstrings_test[][ETH_GSTRING_LEN] = { 74 "Register test (offline)", 75 "EEPROM test (offline)", 76 "Interrupt test (offline)", 77 "Loopback test (offline)", 78 "Link test (on/offline)", 79 }; 80 81 #define ICE_TEST_LEN (sizeof(ice_gstrings_test) / ETH_GSTRING_LEN) 82 83 /* These PF_STATs might look like duplicates of some NETDEV_STATs, 84 * but they aren't. This device is capable of supporting multiple 85 * VSIs/netdevs on a single PF. The NETDEV_STATs are for individual 86 * netdevs whereas the PF_STATs are for the physical function that's 87 * hosting these netdevs. 88 * 89 * The PF_STATs are appended to the netdev stats only when ethtool -S 90 * is queried on the base PF netdev. 91 */ 92 static const struct ice_stats ice_gstrings_pf_stats[] = { 93 ICE_PF_STAT("rx_bytes.nic", stats.eth.rx_bytes), 94 ICE_PF_STAT("tx_bytes.nic", stats.eth.tx_bytes), 95 ICE_PF_STAT("rx_unicast.nic", stats.eth.rx_unicast), 96 ICE_PF_STAT("tx_unicast.nic", stats.eth.tx_unicast), 97 ICE_PF_STAT("rx_multicast.nic", stats.eth.rx_multicast), 98 ICE_PF_STAT("tx_multicast.nic", stats.eth.tx_multicast), 99 ICE_PF_STAT("rx_broadcast.nic", stats.eth.rx_broadcast), 100 ICE_PF_STAT("tx_broadcast.nic", stats.eth.tx_broadcast), 101 ICE_PF_STAT("tx_errors.nic", stats.eth.tx_errors), 102 ICE_PF_STAT("rx_size_64.nic", stats.rx_size_64), 103 ICE_PF_STAT("tx_size_64.nic", stats.tx_size_64), 104 ICE_PF_STAT("rx_size_127.nic", stats.rx_size_127), 105 ICE_PF_STAT("tx_size_127.nic", stats.tx_size_127), 106 ICE_PF_STAT("rx_size_255.nic", stats.rx_size_255), 107 ICE_PF_STAT("tx_size_255.nic", stats.tx_size_255), 108 ICE_PF_STAT("rx_size_511.nic", stats.rx_size_511), 109 ICE_PF_STAT("tx_size_511.nic", stats.tx_size_511), 110 ICE_PF_STAT("rx_size_1023.nic", stats.rx_size_1023), 111 ICE_PF_STAT("tx_size_1023.nic", stats.tx_size_1023), 112 ICE_PF_STAT("rx_size_1522.nic", stats.rx_size_1522), 113 ICE_PF_STAT("tx_size_1522.nic", stats.tx_size_1522), 114 ICE_PF_STAT("rx_size_big.nic", stats.rx_size_big), 115 ICE_PF_STAT("tx_size_big.nic", stats.tx_size_big), 116 ICE_PF_STAT("link_xon_rx.nic", stats.link_xon_rx), 117 ICE_PF_STAT("link_xon_tx.nic", stats.link_xon_tx), 118 ICE_PF_STAT("link_xoff_rx.nic", stats.link_xoff_rx), 119 ICE_PF_STAT("link_xoff_tx.nic", stats.link_xoff_tx), 120 ICE_PF_STAT("tx_dropped_link_down.nic", stats.tx_dropped_link_down), 121 ICE_PF_STAT("rx_undersize.nic", stats.rx_undersize), 122 ICE_PF_STAT("rx_fragments.nic", stats.rx_fragments), 123 ICE_PF_STAT("rx_oversize.nic", stats.rx_oversize), 124 ICE_PF_STAT("rx_jabber.nic", stats.rx_jabber), 125 ICE_PF_STAT("rx_csum_bad.nic", hw_csum_rx_error), 126 ICE_PF_STAT("rx_length_errors.nic", stats.rx_len_errors), 127 ICE_PF_STAT("rx_dropped.nic", stats.eth.rx_discards), 128 ICE_PF_STAT("rx_crc_errors.nic", stats.crc_errors), 129 ICE_PF_STAT("illegal_bytes.nic", stats.illegal_bytes), 130 ICE_PF_STAT("mac_local_faults.nic", stats.mac_local_faults), 131 ICE_PF_STAT("mac_remote_faults.nic", stats.mac_remote_faults), 132 }; 133 134 static const u32 ice_regs_dump_list[] = { 135 PFGEN_STATE, 136 PRTGEN_STATUS, 137 QRX_CTRL(0), 138 QINT_TQCTL(0), 139 QINT_RQCTL(0), 140 PFINT_OICR_ENA, 141 QRX_ITR(0), 142 PF0INT_ITR_0(0), 143 PF0INT_ITR_1(0), 144 PF0INT_ITR_2(0), 145 }; 146 147 struct ice_priv_flag { 148 char name[ETH_GSTRING_LEN]; 149 u32 bitno; /* bit position in pf->flags */ 150 }; 151 152 #define ICE_PRIV_FLAG(_name, _bitno) { \ 153 .name = _name, \ 154 .bitno = _bitno, \ 155 } 156 157 static const struct ice_priv_flag ice_gstrings_priv_flags[] = { 158 ICE_PRIV_FLAG("link-down-on-close", ICE_FLAG_LINK_DOWN_ON_CLOSE_ENA), 159 ICE_PRIV_FLAG("fw-lldp-agent", ICE_FLAG_FW_LLDP_AGENT), 160 ICE_PRIV_FLAG("mdd-auto-reset-vf", ICE_FLAG_MDD_AUTO_RESET_VF), 161 ICE_PRIV_FLAG("legacy-rx", ICE_FLAG_LEGACY_RX), 162 }; 163 164 #define ICE_PRIV_FLAG_ARRAY_SIZE ARRAY_SIZE(ice_gstrings_priv_flags) 165 166 static void 167 ice_get_drvinfo(struct net_device *netdev, struct ethtool_drvinfo *drvinfo) 168 { 169 struct ice_netdev_priv *np = netdev_priv(netdev); 170 struct ice_vsi *vsi = np->vsi; 171 struct ice_pf *pf = vsi->back; 172 struct ice_hw *hw = &pf->hw; 173 struct ice_orom_info *orom; 174 struct ice_nvm_info *nvm; 175 176 nvm = &hw->nvm; 177 orom = &nvm->orom; 178 179 strscpy(drvinfo->driver, KBUILD_MODNAME, sizeof(drvinfo->driver)); 180 strscpy(drvinfo->version, ice_drv_ver, sizeof(drvinfo->version)); 181 182 /* Display NVM version (from which the firmware version can be 183 * determined) which contains more pertinent information. 184 */ 185 snprintf(drvinfo->fw_version, sizeof(drvinfo->fw_version), 186 "%x.%02x 0x%x %d.%d.%d", nvm->major_ver, nvm->minor_ver, 187 nvm->eetrack, orom->major, orom->build, orom->patch); 188 189 strscpy(drvinfo->bus_info, pci_name(pf->pdev), 190 sizeof(drvinfo->bus_info)); 191 drvinfo->n_priv_flags = ICE_PRIV_FLAG_ARRAY_SIZE; 192 } 193 194 static int ice_get_regs_len(struct net_device __always_unused *netdev) 195 { 196 return sizeof(ice_regs_dump_list); 197 } 198 199 static void 200 ice_get_regs(struct net_device *netdev, struct ethtool_regs *regs, void *p) 201 { 202 struct ice_netdev_priv *np = netdev_priv(netdev); 203 struct ice_pf *pf = np->vsi->back; 204 struct ice_hw *hw = &pf->hw; 205 u32 *regs_buf = (u32 *)p; 206 int i; 207 208 regs->version = 1; 209 210 for (i = 0; i < ARRAY_SIZE(ice_regs_dump_list); ++i) 211 regs_buf[i] = rd32(hw, ice_regs_dump_list[i]); 212 } 213 214 static u32 ice_get_msglevel(struct net_device *netdev) 215 { 216 struct ice_netdev_priv *np = netdev_priv(netdev); 217 struct ice_pf *pf = np->vsi->back; 218 219 #ifndef CONFIG_DYNAMIC_DEBUG 220 if (pf->hw.debug_mask) 221 netdev_info(netdev, "hw debug_mask: 0x%llX\n", 222 pf->hw.debug_mask); 223 #endif /* !CONFIG_DYNAMIC_DEBUG */ 224 225 return pf->msg_enable; 226 } 227 228 static void ice_set_msglevel(struct net_device *netdev, u32 data) 229 { 230 struct ice_netdev_priv *np = netdev_priv(netdev); 231 struct ice_pf *pf = np->vsi->back; 232 233 #ifndef CONFIG_DYNAMIC_DEBUG 234 if (ICE_DBG_USER & data) 235 pf->hw.debug_mask = data; 236 else 237 pf->msg_enable = data; 238 #else 239 pf->msg_enable = data; 240 #endif /* !CONFIG_DYNAMIC_DEBUG */ 241 } 242 243 static int ice_get_eeprom_len(struct net_device *netdev) 244 { 245 struct ice_netdev_priv *np = netdev_priv(netdev); 246 struct ice_pf *pf = np->vsi->back; 247 248 return (int)pf->hw.nvm.flash_size; 249 } 250 251 static int 252 ice_get_eeprom(struct net_device *netdev, struct ethtool_eeprom *eeprom, 253 u8 *bytes) 254 { 255 struct ice_netdev_priv *np = netdev_priv(netdev); 256 struct ice_vsi *vsi = np->vsi; 257 struct ice_pf *pf = vsi->back; 258 struct ice_hw *hw = &pf->hw; 259 enum ice_status status; 260 struct device *dev; 261 int ret = 0; 262 u8 *buf; 263 264 dev = ice_pf_to_dev(pf); 265 266 eeprom->magic = hw->vendor_id | (hw->device_id << 16); 267 netdev_dbg(netdev, "GEEPROM cmd 0x%08x, offset 0x%08x, len 0x%08x\n", 268 eeprom->cmd, eeprom->offset, eeprom->len); 269 270 buf = kzalloc(eeprom->len, GFP_KERNEL); 271 if (!buf) 272 return -ENOMEM; 273 274 status = ice_acquire_nvm(hw, ICE_RES_READ); 275 if (status) { 276 dev_err(dev, "ice_acquire_nvm failed, err %d aq_err %d\n", 277 status, hw->adminq.sq_last_status); 278 ret = -EIO; 279 goto out; 280 } 281 282 status = ice_read_flat_nvm(hw, eeprom->offset, &eeprom->len, buf, 283 false); 284 if (status) { 285 dev_err(dev, "ice_read_flat_nvm failed, err %d aq_err %d\n", 286 status, hw->adminq.sq_last_status); 287 ret = -EIO; 288 goto release; 289 } 290 291 memcpy(bytes, buf, eeprom->len); 292 release: 293 ice_release_nvm(hw); 294 out: 295 kfree(buf); 296 return ret; 297 } 298 299 /** 300 * ice_active_vfs - check if there are any active VFs 301 * @pf: board private structure 302 * 303 * Returns true if an active VF is found, otherwise returns false 304 */ 305 static bool ice_active_vfs(struct ice_pf *pf) 306 { 307 int i; 308 309 ice_for_each_vf(pf, i) { 310 struct ice_vf *vf = &pf->vf[i]; 311 312 if (test_bit(ICE_VF_STATE_ACTIVE, vf->vf_states)) 313 return true; 314 } 315 316 return false; 317 } 318 319 /** 320 * ice_link_test - perform a link test on a given net_device 321 * @netdev: network interface device structure 322 * 323 * This function performs one of the self-tests required by ethtool. 324 * Returns 0 on success, non-zero on failure. 325 */ 326 static u64 ice_link_test(struct net_device *netdev) 327 { 328 struct ice_netdev_priv *np = netdev_priv(netdev); 329 enum ice_status status; 330 bool link_up = false; 331 332 netdev_info(netdev, "link test\n"); 333 status = ice_get_link_status(np->vsi->port_info, &link_up); 334 if (status) { 335 netdev_err(netdev, "link query error, status = %d\n", status); 336 return 1; 337 } 338 339 if (!link_up) 340 return 2; 341 342 return 0; 343 } 344 345 /** 346 * ice_eeprom_test - perform an EEPROM test on a given net_device 347 * @netdev: network interface device structure 348 * 349 * This function performs one of the self-tests required by ethtool. 350 * Returns 0 on success, non-zero on failure. 351 */ 352 static u64 ice_eeprom_test(struct net_device *netdev) 353 { 354 struct ice_netdev_priv *np = netdev_priv(netdev); 355 struct ice_pf *pf = np->vsi->back; 356 357 netdev_info(netdev, "EEPROM test\n"); 358 return !!(ice_nvm_validate_checksum(&pf->hw)); 359 } 360 361 /** 362 * ice_reg_pattern_test 363 * @hw: pointer to the HW struct 364 * @reg: reg to be tested 365 * @mask: bits to be touched 366 */ 367 static int ice_reg_pattern_test(struct ice_hw *hw, u32 reg, u32 mask) 368 { 369 struct ice_pf *pf = (struct ice_pf *)hw->back; 370 struct device *dev = ice_pf_to_dev(pf); 371 static const u32 patterns[] = { 372 0x5A5A5A5A, 0xA5A5A5A5, 373 0x00000000, 0xFFFFFFFF 374 }; 375 u32 val, orig_val; 376 int i; 377 378 orig_val = rd32(hw, reg); 379 for (i = 0; i < ARRAY_SIZE(patterns); ++i) { 380 u32 pattern = patterns[i] & mask; 381 382 wr32(hw, reg, pattern); 383 val = rd32(hw, reg); 384 if (val == pattern) 385 continue; 386 dev_err(dev, "%s: reg pattern test failed - reg 0x%08x pat 0x%08x val 0x%08x\n" 387 , __func__, reg, pattern, val); 388 return 1; 389 } 390 391 wr32(hw, reg, orig_val); 392 val = rd32(hw, reg); 393 if (val != orig_val) { 394 dev_err(dev, "%s: reg restore test failed - reg 0x%08x orig 0x%08x val 0x%08x\n" 395 , __func__, reg, orig_val, val); 396 return 1; 397 } 398 399 return 0; 400 } 401 402 /** 403 * ice_reg_test - perform a register test on a given net_device 404 * @netdev: network interface device structure 405 * 406 * This function performs one of the self-tests required by ethtool. 407 * Returns 0 on success, non-zero on failure. 408 */ 409 static u64 ice_reg_test(struct net_device *netdev) 410 { 411 struct ice_netdev_priv *np = netdev_priv(netdev); 412 struct ice_hw *hw = np->vsi->port_info->hw; 413 u32 int_elements = hw->func_caps.common_cap.num_msix_vectors ? 414 hw->func_caps.common_cap.num_msix_vectors - 1 : 1; 415 struct ice_diag_reg_test_info { 416 u32 address; 417 u32 mask; 418 u32 elem_num; 419 u32 elem_size; 420 } ice_reg_list[] = { 421 {GLINT_ITR(0, 0), 0x00000fff, int_elements, 422 GLINT_ITR(0, 1) - GLINT_ITR(0, 0)}, 423 {GLINT_ITR(1, 0), 0x00000fff, int_elements, 424 GLINT_ITR(1, 1) - GLINT_ITR(1, 0)}, 425 {GLINT_ITR(0, 0), 0x00000fff, int_elements, 426 GLINT_ITR(2, 1) - GLINT_ITR(2, 0)}, 427 {GLINT_CTL, 0xffff0001, 1, 0} 428 }; 429 int i; 430 431 netdev_dbg(netdev, "Register test\n"); 432 for (i = 0; i < ARRAY_SIZE(ice_reg_list); ++i) { 433 u32 j; 434 435 for (j = 0; j < ice_reg_list[i].elem_num; ++j) { 436 u32 mask = ice_reg_list[i].mask; 437 u32 reg = ice_reg_list[i].address + 438 (j * ice_reg_list[i].elem_size); 439 440 /* bail on failure (non-zero return) */ 441 if (ice_reg_pattern_test(hw, reg, mask)) 442 return 1; 443 } 444 } 445 446 return 0; 447 } 448 449 /** 450 * ice_lbtest_prepare_rings - configure Tx/Rx test rings 451 * @vsi: pointer to the VSI structure 452 * 453 * Function configures rings of a VSI for loopback test without 454 * enabling interrupts or informing the kernel about new queues. 455 * 456 * Returns 0 on success, negative on failure. 457 */ 458 static int ice_lbtest_prepare_rings(struct ice_vsi *vsi) 459 { 460 int status; 461 462 status = ice_vsi_setup_tx_rings(vsi); 463 if (status) 464 goto err_setup_tx_ring; 465 466 status = ice_vsi_setup_rx_rings(vsi); 467 if (status) 468 goto err_setup_rx_ring; 469 470 status = ice_vsi_cfg(vsi); 471 if (status) 472 goto err_setup_rx_ring; 473 474 status = ice_vsi_start_all_rx_rings(vsi); 475 if (status) 476 goto err_start_rx_ring; 477 478 return status; 479 480 err_start_rx_ring: 481 ice_vsi_free_rx_rings(vsi); 482 err_setup_rx_ring: 483 ice_vsi_stop_lan_tx_rings(vsi, ICE_NO_RESET, 0); 484 err_setup_tx_ring: 485 ice_vsi_free_tx_rings(vsi); 486 487 return status; 488 } 489 490 /** 491 * ice_lbtest_disable_rings - disable Tx/Rx test rings after loopback test 492 * @vsi: pointer to the VSI structure 493 * 494 * Function stops and frees VSI rings after a loopback test. 495 * Returns 0 on success, negative on failure. 496 */ 497 static int ice_lbtest_disable_rings(struct ice_vsi *vsi) 498 { 499 int status; 500 501 status = ice_vsi_stop_lan_tx_rings(vsi, ICE_NO_RESET, 0); 502 if (status) 503 netdev_err(vsi->netdev, "Failed to stop Tx rings, VSI %d error %d\n", 504 vsi->vsi_num, status); 505 506 status = ice_vsi_stop_all_rx_rings(vsi); 507 if (status) 508 netdev_err(vsi->netdev, "Failed to stop Rx rings, VSI %d error %d\n", 509 vsi->vsi_num, status); 510 511 ice_vsi_free_tx_rings(vsi); 512 ice_vsi_free_rx_rings(vsi); 513 514 return status; 515 } 516 517 /** 518 * ice_lbtest_create_frame - create test packet 519 * @pf: pointer to the PF structure 520 * @ret_data: allocated frame buffer 521 * @size: size of the packet data 522 * 523 * Function allocates a frame with a test pattern on specific offsets. 524 * Returns 0 on success, non-zero on failure. 525 */ 526 static int ice_lbtest_create_frame(struct ice_pf *pf, u8 **ret_data, u16 size) 527 { 528 u8 *data; 529 530 if (!pf) 531 return -EINVAL; 532 533 data = devm_kzalloc(ice_pf_to_dev(pf), size, GFP_KERNEL); 534 if (!data) 535 return -ENOMEM; 536 537 /* Since the ethernet test frame should always be at least 538 * 64 bytes long, fill some octets in the payload with test data. 539 */ 540 memset(data, 0xFF, size); 541 data[32] = 0xDE; 542 data[42] = 0xAD; 543 data[44] = 0xBE; 544 data[46] = 0xEF; 545 546 *ret_data = data; 547 548 return 0; 549 } 550 551 /** 552 * ice_lbtest_check_frame - verify received loopback frame 553 * @frame: pointer to the raw packet data 554 * 555 * Function verifies received test frame with a pattern. 556 * Returns true if frame matches the pattern, false otherwise. 557 */ 558 static bool ice_lbtest_check_frame(u8 *frame) 559 { 560 /* Validate bytes of a frame under offsets chosen earlier */ 561 if (frame[32] == 0xDE && 562 frame[42] == 0xAD && 563 frame[44] == 0xBE && 564 frame[46] == 0xEF && 565 frame[48] == 0xFF) 566 return true; 567 568 return false; 569 } 570 571 /** 572 * ice_diag_send - send test frames to the test ring 573 * @tx_ring: pointer to the transmit ring 574 * @data: pointer to the raw packet data 575 * @size: size of the packet to send 576 * 577 * Function sends loopback packets on a test Tx ring. 578 */ 579 static int ice_diag_send(struct ice_ring *tx_ring, u8 *data, u16 size) 580 { 581 struct ice_tx_desc *tx_desc; 582 struct ice_tx_buf *tx_buf; 583 dma_addr_t dma; 584 u64 td_cmd; 585 586 tx_desc = ICE_TX_DESC(tx_ring, tx_ring->next_to_use); 587 tx_buf = &tx_ring->tx_buf[tx_ring->next_to_use]; 588 589 dma = dma_map_single(tx_ring->dev, data, size, DMA_TO_DEVICE); 590 if (dma_mapping_error(tx_ring->dev, dma)) 591 return -EINVAL; 592 593 tx_desc->buf_addr = cpu_to_le64(dma); 594 595 /* These flags are required for a descriptor to be pushed out */ 596 td_cmd = (u64)(ICE_TX_DESC_CMD_EOP | ICE_TX_DESC_CMD_RS); 597 tx_desc->cmd_type_offset_bsz = 598 cpu_to_le64(ICE_TX_DESC_DTYPE_DATA | 599 (td_cmd << ICE_TXD_QW1_CMD_S) | 600 ((u64)0 << ICE_TXD_QW1_OFFSET_S) | 601 ((u64)size << ICE_TXD_QW1_TX_BUF_SZ_S) | 602 ((u64)0 << ICE_TXD_QW1_L2TAG1_S)); 603 604 tx_buf->next_to_watch = tx_desc; 605 606 /* Force memory write to complete before letting h/w know 607 * there are new descriptors to fetch. 608 */ 609 wmb(); 610 611 tx_ring->next_to_use++; 612 if (tx_ring->next_to_use >= tx_ring->count) 613 tx_ring->next_to_use = 0; 614 615 writel_relaxed(tx_ring->next_to_use, tx_ring->tail); 616 617 /* Wait until the packets get transmitted to the receive queue. */ 618 usleep_range(1000, 2000); 619 dma_unmap_single(tx_ring->dev, dma, size, DMA_TO_DEVICE); 620 621 return 0; 622 } 623 624 #define ICE_LB_FRAME_SIZE 64 625 /** 626 * ice_lbtest_receive_frames - receive and verify test frames 627 * @rx_ring: pointer to the receive ring 628 * 629 * Function receives loopback packets and verify their correctness. 630 * Returns number of received valid frames. 631 */ 632 static int ice_lbtest_receive_frames(struct ice_ring *rx_ring) 633 { 634 struct ice_rx_buf *rx_buf; 635 int valid_frames, i; 636 u8 *received_buf; 637 638 valid_frames = 0; 639 640 for (i = 0; i < rx_ring->count; i++) { 641 union ice_32b_rx_flex_desc *rx_desc; 642 643 rx_desc = ICE_RX_DESC(rx_ring, i); 644 645 if (!(rx_desc->wb.status_error0 & 646 cpu_to_le16(ICE_TX_DESC_CMD_EOP | ICE_TX_DESC_CMD_RS))) 647 continue; 648 649 rx_buf = &rx_ring->rx_buf[i]; 650 received_buf = page_address(rx_buf->page) + rx_buf->page_offset; 651 652 if (ice_lbtest_check_frame(received_buf)) 653 valid_frames++; 654 } 655 656 return valid_frames; 657 } 658 659 /** 660 * ice_loopback_test - perform a loopback test on a given net_device 661 * @netdev: network interface device structure 662 * 663 * This function performs one of the self-tests required by ethtool. 664 * Returns 0 on success, non-zero on failure. 665 */ 666 static u64 ice_loopback_test(struct net_device *netdev) 667 { 668 struct ice_netdev_priv *np = netdev_priv(netdev); 669 struct ice_vsi *orig_vsi = np->vsi, *test_vsi; 670 struct ice_pf *pf = orig_vsi->back; 671 struct ice_ring *tx_ring, *rx_ring; 672 u8 broadcast[ETH_ALEN], ret = 0; 673 int num_frames, valid_frames; 674 LIST_HEAD(tmp_list); 675 struct device *dev; 676 u8 *tx_frame; 677 int i; 678 679 dev = ice_pf_to_dev(pf); 680 netdev_info(netdev, "loopback test\n"); 681 682 test_vsi = ice_lb_vsi_setup(pf, pf->hw.port_info); 683 if (!test_vsi) { 684 netdev_err(netdev, "Failed to create a VSI for the loopback test\n"); 685 return 1; 686 } 687 688 test_vsi->netdev = netdev; 689 tx_ring = test_vsi->tx_rings[0]; 690 rx_ring = test_vsi->rx_rings[0]; 691 692 if (ice_lbtest_prepare_rings(test_vsi)) { 693 ret = 2; 694 goto lbtest_vsi_close; 695 } 696 697 if (ice_alloc_rx_bufs(rx_ring, rx_ring->count)) { 698 ret = 3; 699 goto lbtest_rings_dis; 700 } 701 702 /* Enable MAC loopback in firmware */ 703 if (ice_aq_set_mac_loopback(&pf->hw, true, NULL)) { 704 ret = 4; 705 goto lbtest_mac_dis; 706 } 707 708 /* Test VSI needs to receive broadcast packets */ 709 eth_broadcast_addr(broadcast); 710 if (ice_add_mac_to_list(test_vsi, &tmp_list, broadcast)) { 711 ret = 5; 712 goto lbtest_mac_dis; 713 } 714 715 if (ice_add_mac(&pf->hw, &tmp_list)) { 716 ret = 6; 717 goto free_mac_list; 718 } 719 720 if (ice_lbtest_create_frame(pf, &tx_frame, ICE_LB_FRAME_SIZE)) { 721 ret = 7; 722 goto remove_mac_filters; 723 } 724 725 num_frames = min_t(int, tx_ring->count, 32); 726 for (i = 0; i < num_frames; i++) { 727 if (ice_diag_send(tx_ring, tx_frame, ICE_LB_FRAME_SIZE)) { 728 ret = 8; 729 goto lbtest_free_frame; 730 } 731 } 732 733 valid_frames = ice_lbtest_receive_frames(rx_ring); 734 if (!valid_frames) 735 ret = 9; 736 else if (valid_frames != num_frames) 737 ret = 10; 738 739 lbtest_free_frame: 740 devm_kfree(dev, tx_frame); 741 remove_mac_filters: 742 if (ice_remove_mac(&pf->hw, &tmp_list)) 743 netdev_err(netdev, "Could not remove MAC filter for the test VSI\n"); 744 free_mac_list: 745 ice_free_fltr_list(dev, &tmp_list); 746 lbtest_mac_dis: 747 /* Disable MAC loopback after the test is completed. */ 748 if (ice_aq_set_mac_loopback(&pf->hw, false, NULL)) 749 netdev_err(netdev, "Could not disable MAC loopback\n"); 750 lbtest_rings_dis: 751 if (ice_lbtest_disable_rings(test_vsi)) 752 netdev_err(netdev, "Could not disable test rings\n"); 753 lbtest_vsi_close: 754 test_vsi->netdev = NULL; 755 if (ice_vsi_release(test_vsi)) 756 netdev_err(netdev, "Failed to remove the test VSI\n"); 757 758 return ret; 759 } 760 761 /** 762 * ice_intr_test - perform an interrupt test on a given net_device 763 * @netdev: network interface device structure 764 * 765 * This function performs one of the self-tests required by ethtool. 766 * Returns 0 on success, non-zero on failure. 767 */ 768 static u64 ice_intr_test(struct net_device *netdev) 769 { 770 struct ice_netdev_priv *np = netdev_priv(netdev); 771 struct ice_pf *pf = np->vsi->back; 772 u16 swic_old = pf->sw_int_count; 773 774 netdev_info(netdev, "interrupt test\n"); 775 776 wr32(&pf->hw, GLINT_DYN_CTL(pf->oicr_idx), 777 GLINT_DYN_CTL_SW_ITR_INDX_M | 778 GLINT_DYN_CTL_INTENA_MSK_M | 779 GLINT_DYN_CTL_SWINT_TRIG_M); 780 781 usleep_range(1000, 2000); 782 return (swic_old == pf->sw_int_count); 783 } 784 785 /** 786 * ice_self_test - handler function for performing a self-test by ethtool 787 * @netdev: network interface device structure 788 * @eth_test: ethtool_test structure 789 * @data: required by ethtool.self_test 790 * 791 * This function is called after invoking 'ethtool -t devname' command where 792 * devname is the name of the network device on which ethtool should operate. 793 * It performs a set of self-tests to check if a device works properly. 794 */ 795 static void 796 ice_self_test(struct net_device *netdev, struct ethtool_test *eth_test, 797 u64 *data) 798 { 799 struct ice_netdev_priv *np = netdev_priv(netdev); 800 bool if_running = netif_running(netdev); 801 struct ice_pf *pf = np->vsi->back; 802 struct device *dev; 803 804 dev = ice_pf_to_dev(pf); 805 806 if (eth_test->flags == ETH_TEST_FL_OFFLINE) { 807 netdev_info(netdev, "offline testing starting\n"); 808 809 set_bit(__ICE_TESTING, pf->state); 810 811 if (ice_active_vfs(pf)) { 812 dev_warn(dev, "Please take active VFs and Netqueues offline and restart the adapter before running NIC diagnostics\n"); 813 data[ICE_ETH_TEST_REG] = 1; 814 data[ICE_ETH_TEST_EEPROM] = 1; 815 data[ICE_ETH_TEST_INTR] = 1; 816 data[ICE_ETH_TEST_LOOP] = 1; 817 data[ICE_ETH_TEST_LINK] = 1; 818 eth_test->flags |= ETH_TEST_FL_FAILED; 819 clear_bit(__ICE_TESTING, pf->state); 820 goto skip_ol_tests; 821 } 822 /* If the device is online then take it offline */ 823 if (if_running) 824 /* indicate we're in test mode */ 825 ice_stop(netdev); 826 827 data[ICE_ETH_TEST_LINK] = ice_link_test(netdev); 828 data[ICE_ETH_TEST_EEPROM] = ice_eeprom_test(netdev); 829 data[ICE_ETH_TEST_INTR] = ice_intr_test(netdev); 830 data[ICE_ETH_TEST_LOOP] = ice_loopback_test(netdev); 831 data[ICE_ETH_TEST_REG] = ice_reg_test(netdev); 832 833 if (data[ICE_ETH_TEST_LINK] || 834 data[ICE_ETH_TEST_EEPROM] || 835 data[ICE_ETH_TEST_LOOP] || 836 data[ICE_ETH_TEST_INTR] || 837 data[ICE_ETH_TEST_REG]) 838 eth_test->flags |= ETH_TEST_FL_FAILED; 839 840 clear_bit(__ICE_TESTING, pf->state); 841 842 if (if_running) { 843 int status = ice_open(netdev); 844 845 if (status) { 846 dev_err(dev, "Could not open device %s, err %d\n", 847 pf->int_name, status); 848 } 849 } 850 } else { 851 /* Online tests */ 852 netdev_info(netdev, "online testing starting\n"); 853 854 data[ICE_ETH_TEST_LINK] = ice_link_test(netdev); 855 if (data[ICE_ETH_TEST_LINK]) 856 eth_test->flags |= ETH_TEST_FL_FAILED; 857 858 /* Offline only tests, not run in online; pass by default */ 859 data[ICE_ETH_TEST_REG] = 0; 860 data[ICE_ETH_TEST_EEPROM] = 0; 861 data[ICE_ETH_TEST_INTR] = 0; 862 data[ICE_ETH_TEST_LOOP] = 0; 863 } 864 865 skip_ol_tests: 866 netdev_info(netdev, "testing finished\n"); 867 } 868 869 static void ice_get_strings(struct net_device *netdev, u32 stringset, u8 *data) 870 { 871 struct ice_netdev_priv *np = netdev_priv(netdev); 872 struct ice_vsi *vsi = np->vsi; 873 char *p = (char *)data; 874 unsigned int i; 875 876 switch (stringset) { 877 case ETH_SS_STATS: 878 for (i = 0; i < ICE_VSI_STATS_LEN; i++) { 879 snprintf(p, ETH_GSTRING_LEN, "%s", 880 ice_gstrings_vsi_stats[i].stat_string); 881 p += ETH_GSTRING_LEN; 882 } 883 884 ice_for_each_alloc_txq(vsi, i) { 885 snprintf(p, ETH_GSTRING_LEN, 886 "tx_queue_%u_packets", i); 887 p += ETH_GSTRING_LEN; 888 snprintf(p, ETH_GSTRING_LEN, "tx_queue_%u_bytes", i); 889 p += ETH_GSTRING_LEN; 890 } 891 892 ice_for_each_alloc_rxq(vsi, i) { 893 snprintf(p, ETH_GSTRING_LEN, 894 "rx_queue_%u_packets", i); 895 p += ETH_GSTRING_LEN; 896 snprintf(p, ETH_GSTRING_LEN, "rx_queue_%u_bytes", i); 897 p += ETH_GSTRING_LEN; 898 } 899 900 if (vsi->type != ICE_VSI_PF) 901 return; 902 903 for (i = 0; i < ICE_PF_STATS_LEN; i++) { 904 snprintf(p, ETH_GSTRING_LEN, "%s", 905 ice_gstrings_pf_stats[i].stat_string); 906 p += ETH_GSTRING_LEN; 907 } 908 909 for (i = 0; i < ICE_MAX_USER_PRIORITY; i++) { 910 snprintf(p, ETH_GSTRING_LEN, 911 "tx_priority_%u_xon.nic", i); 912 p += ETH_GSTRING_LEN; 913 snprintf(p, ETH_GSTRING_LEN, 914 "tx_priority_%u_xoff.nic", i); 915 p += ETH_GSTRING_LEN; 916 } 917 for (i = 0; i < ICE_MAX_USER_PRIORITY; i++) { 918 snprintf(p, ETH_GSTRING_LEN, 919 "rx_priority_%u_xon.nic", i); 920 p += ETH_GSTRING_LEN; 921 snprintf(p, ETH_GSTRING_LEN, 922 "rx_priority_%u_xoff.nic", i); 923 p += ETH_GSTRING_LEN; 924 } 925 break; 926 case ETH_SS_TEST: 927 memcpy(data, ice_gstrings_test, ICE_TEST_LEN * ETH_GSTRING_LEN); 928 break; 929 case ETH_SS_PRIV_FLAGS: 930 for (i = 0; i < ICE_PRIV_FLAG_ARRAY_SIZE; i++) { 931 snprintf(p, ETH_GSTRING_LEN, "%s", 932 ice_gstrings_priv_flags[i].name); 933 p += ETH_GSTRING_LEN; 934 } 935 break; 936 default: 937 break; 938 } 939 } 940 941 static int 942 ice_set_phys_id(struct net_device *netdev, enum ethtool_phys_id_state state) 943 { 944 struct ice_netdev_priv *np = netdev_priv(netdev); 945 bool led_active; 946 947 switch (state) { 948 case ETHTOOL_ID_ACTIVE: 949 led_active = true; 950 break; 951 case ETHTOOL_ID_INACTIVE: 952 led_active = false; 953 break; 954 default: 955 return -EINVAL; 956 } 957 958 if (ice_aq_set_port_id_led(np->vsi->port_info, !led_active, NULL)) 959 return -EIO; 960 961 return 0; 962 } 963 964 /** 965 * ice_set_fec_cfg - Set link FEC options 966 * @netdev: network interface device structure 967 * @req_fec: FEC mode to configure 968 */ 969 static int ice_set_fec_cfg(struct net_device *netdev, enum ice_fec_mode req_fec) 970 { 971 struct ice_netdev_priv *np = netdev_priv(netdev); 972 struct ice_aqc_set_phy_cfg_data config = { 0 }; 973 struct ice_aqc_get_phy_caps_data *caps; 974 struct ice_vsi *vsi = np->vsi; 975 u8 sw_cfg_caps, sw_cfg_fec; 976 struct ice_port_info *pi; 977 enum ice_status status; 978 int err = 0; 979 980 pi = vsi->port_info; 981 if (!pi) 982 return -EOPNOTSUPP; 983 984 /* Changing the FEC parameters is not supported if not the PF VSI */ 985 if (vsi->type != ICE_VSI_PF) { 986 netdev_info(netdev, "Changing FEC parameters only supported for PF VSI\n"); 987 return -EOPNOTSUPP; 988 } 989 990 /* Get last SW configuration */ 991 caps = kzalloc(sizeof(*caps), GFP_KERNEL); 992 if (!caps) 993 return -ENOMEM; 994 995 status = ice_aq_get_phy_caps(pi, false, ICE_AQC_REPORT_SW_CFG, 996 caps, NULL); 997 if (status) { 998 err = -EAGAIN; 999 goto done; 1000 } 1001 1002 /* Copy SW configuration returned from PHY caps to PHY config */ 1003 ice_copy_phy_caps_to_cfg(caps, &config); 1004 sw_cfg_caps = caps->caps; 1005 sw_cfg_fec = caps->link_fec_options; 1006 1007 /* Get toloplogy caps, then copy PHY FEC topoloy caps to PHY config */ 1008 memset(caps, 0, sizeof(*caps)); 1009 1010 status = ice_aq_get_phy_caps(pi, false, ICE_AQC_REPORT_TOPO_CAP, 1011 caps, NULL); 1012 if (status) { 1013 err = -EAGAIN; 1014 goto done; 1015 } 1016 1017 config.caps |= (caps->caps & ICE_AQC_PHY_EN_AUTO_FEC); 1018 config.link_fec_opt = caps->link_fec_options; 1019 1020 ice_cfg_phy_fec(&config, req_fec); 1021 1022 /* If FEC mode has changed, then set PHY configuration and enable AN. */ 1023 if ((config.caps & ICE_AQ_PHY_ENA_AUTO_FEC) != 1024 (sw_cfg_caps & ICE_AQC_PHY_EN_AUTO_FEC) || 1025 config.link_fec_opt != sw_cfg_fec) { 1026 if (caps->caps & ICE_AQC_PHY_AN_MODE) 1027 config.caps |= ICE_AQ_PHY_ENA_AUTO_LINK_UPDT; 1028 1029 status = ice_aq_set_phy_cfg(pi->hw, pi->lport, &config, NULL); 1030 1031 if (status) 1032 err = -EAGAIN; 1033 } 1034 1035 done: 1036 kfree(caps); 1037 return err; 1038 } 1039 1040 /** 1041 * ice_set_fecparam - Set FEC link options 1042 * @netdev: network interface device structure 1043 * @fecparam: Ethtool structure to retrieve FEC parameters 1044 */ 1045 static int 1046 ice_set_fecparam(struct net_device *netdev, struct ethtool_fecparam *fecparam) 1047 { 1048 struct ice_netdev_priv *np = netdev_priv(netdev); 1049 struct ice_vsi *vsi = np->vsi; 1050 enum ice_fec_mode fec; 1051 1052 switch (fecparam->fec) { 1053 case ETHTOOL_FEC_AUTO: 1054 fec = ICE_FEC_AUTO; 1055 break; 1056 case ETHTOOL_FEC_RS: 1057 fec = ICE_FEC_RS; 1058 break; 1059 case ETHTOOL_FEC_BASER: 1060 fec = ICE_FEC_BASER; 1061 break; 1062 case ETHTOOL_FEC_OFF: 1063 case ETHTOOL_FEC_NONE: 1064 fec = ICE_FEC_NONE; 1065 break; 1066 default: 1067 dev_warn(ice_pf_to_dev(vsi->back), "Unsupported FEC mode: %d\n", 1068 fecparam->fec); 1069 return -EINVAL; 1070 } 1071 1072 return ice_set_fec_cfg(netdev, fec); 1073 } 1074 1075 /** 1076 * ice_get_fecparam - Get link FEC options 1077 * @netdev: network interface device structure 1078 * @fecparam: Ethtool structure to retrieve FEC parameters 1079 */ 1080 static int 1081 ice_get_fecparam(struct net_device *netdev, struct ethtool_fecparam *fecparam) 1082 { 1083 struct ice_netdev_priv *np = netdev_priv(netdev); 1084 struct ice_aqc_get_phy_caps_data *caps; 1085 struct ice_link_status *link_info; 1086 struct ice_vsi *vsi = np->vsi; 1087 struct ice_port_info *pi; 1088 enum ice_status status; 1089 int err = 0; 1090 1091 pi = vsi->port_info; 1092 1093 if (!pi) 1094 return -EOPNOTSUPP; 1095 link_info = &pi->phy.link_info; 1096 1097 /* Set FEC mode based on negotiated link info */ 1098 switch (link_info->fec_info) { 1099 case ICE_AQ_LINK_25G_KR_FEC_EN: 1100 fecparam->active_fec = ETHTOOL_FEC_BASER; 1101 break; 1102 case ICE_AQ_LINK_25G_RS_528_FEC_EN: 1103 case ICE_AQ_LINK_25G_RS_544_FEC_EN: 1104 fecparam->active_fec = ETHTOOL_FEC_RS; 1105 break; 1106 default: 1107 fecparam->active_fec = ETHTOOL_FEC_OFF; 1108 break; 1109 } 1110 1111 caps = kzalloc(sizeof(*caps), GFP_KERNEL); 1112 if (!caps) 1113 return -ENOMEM; 1114 1115 status = ice_aq_get_phy_caps(pi, false, ICE_AQC_REPORT_TOPO_CAP, 1116 caps, NULL); 1117 if (status) { 1118 err = -EAGAIN; 1119 goto done; 1120 } 1121 1122 /* Set supported/configured FEC modes based on PHY capability */ 1123 if (caps->caps & ICE_AQC_PHY_EN_AUTO_FEC) 1124 fecparam->fec |= ETHTOOL_FEC_AUTO; 1125 if (caps->link_fec_options & ICE_AQC_PHY_FEC_10G_KR_40G_KR4_EN || 1126 caps->link_fec_options & ICE_AQC_PHY_FEC_10G_KR_40G_KR4_REQ || 1127 caps->link_fec_options & ICE_AQC_PHY_FEC_25G_KR_CLAUSE74_EN || 1128 caps->link_fec_options & ICE_AQC_PHY_FEC_25G_KR_REQ) 1129 fecparam->fec |= ETHTOOL_FEC_BASER; 1130 if (caps->link_fec_options & ICE_AQC_PHY_FEC_25G_RS_528_REQ || 1131 caps->link_fec_options & ICE_AQC_PHY_FEC_25G_RS_544_REQ || 1132 caps->link_fec_options & ICE_AQC_PHY_FEC_25G_RS_CLAUSE91_EN) 1133 fecparam->fec |= ETHTOOL_FEC_RS; 1134 if (caps->link_fec_options == 0) 1135 fecparam->fec |= ETHTOOL_FEC_OFF; 1136 1137 done: 1138 kfree(caps); 1139 return err; 1140 } 1141 1142 /** 1143 * ice_nway_reset - restart autonegotiation 1144 * @netdev: network interface device structure 1145 */ 1146 static int ice_nway_reset(struct net_device *netdev) 1147 { 1148 struct ice_netdev_priv *np = netdev_priv(netdev); 1149 struct ice_vsi *vsi = np->vsi; 1150 struct ice_port_info *pi; 1151 enum ice_status status; 1152 1153 pi = vsi->port_info; 1154 /* If VSI state is up, then restart autoneg with link up */ 1155 if (!test_bit(__ICE_DOWN, vsi->back->state)) 1156 status = ice_aq_set_link_restart_an(pi, true, NULL); 1157 else 1158 status = ice_aq_set_link_restart_an(pi, false, NULL); 1159 1160 if (status) { 1161 netdev_info(netdev, "link restart failed, err %d aq_err %d\n", 1162 status, pi->hw->adminq.sq_last_status); 1163 return -EIO; 1164 } 1165 1166 return 0; 1167 } 1168 1169 /** 1170 * ice_get_priv_flags - report device private flags 1171 * @netdev: network interface device structure 1172 * 1173 * The get string set count and the string set should be matched for each 1174 * flag returned. Add new strings for each flag to the ice_gstrings_priv_flags 1175 * array. 1176 * 1177 * Returns a u32 bitmap of flags. 1178 */ 1179 static u32 ice_get_priv_flags(struct net_device *netdev) 1180 { 1181 struct ice_netdev_priv *np = netdev_priv(netdev); 1182 struct ice_vsi *vsi = np->vsi; 1183 struct ice_pf *pf = vsi->back; 1184 u32 i, ret_flags = 0; 1185 1186 for (i = 0; i < ICE_PRIV_FLAG_ARRAY_SIZE; i++) { 1187 const struct ice_priv_flag *priv_flag; 1188 1189 priv_flag = &ice_gstrings_priv_flags[i]; 1190 1191 if (test_bit(priv_flag->bitno, pf->flags)) 1192 ret_flags |= BIT(i); 1193 } 1194 1195 return ret_flags; 1196 } 1197 1198 /** 1199 * ice_set_priv_flags - set private flags 1200 * @netdev: network interface device structure 1201 * @flags: bit flags to be set 1202 */ 1203 static int ice_set_priv_flags(struct net_device *netdev, u32 flags) 1204 { 1205 struct ice_netdev_priv *np = netdev_priv(netdev); 1206 DECLARE_BITMAP(change_flags, ICE_PF_FLAGS_NBITS); 1207 DECLARE_BITMAP(orig_flags, ICE_PF_FLAGS_NBITS); 1208 struct ice_vsi *vsi = np->vsi; 1209 struct ice_pf *pf = vsi->back; 1210 struct device *dev; 1211 int ret = 0; 1212 u32 i; 1213 1214 if (flags > BIT(ICE_PRIV_FLAG_ARRAY_SIZE)) 1215 return -EINVAL; 1216 1217 dev = ice_pf_to_dev(pf); 1218 set_bit(ICE_FLAG_ETHTOOL_CTXT, pf->flags); 1219 1220 bitmap_copy(orig_flags, pf->flags, ICE_PF_FLAGS_NBITS); 1221 for (i = 0; i < ICE_PRIV_FLAG_ARRAY_SIZE; i++) { 1222 const struct ice_priv_flag *priv_flag; 1223 1224 priv_flag = &ice_gstrings_priv_flags[i]; 1225 1226 if (flags & BIT(i)) 1227 set_bit(priv_flag->bitno, pf->flags); 1228 else 1229 clear_bit(priv_flag->bitno, pf->flags); 1230 } 1231 1232 bitmap_xor(change_flags, pf->flags, orig_flags, ICE_PF_FLAGS_NBITS); 1233 1234 if (test_bit(ICE_FLAG_FW_LLDP_AGENT, change_flags)) { 1235 if (!test_bit(ICE_FLAG_FW_LLDP_AGENT, pf->flags)) { 1236 enum ice_status status; 1237 1238 /* Disable FW LLDP engine */ 1239 status = ice_cfg_lldp_mib_change(&pf->hw, false); 1240 1241 /* If unregistering for LLDP events fails, this is 1242 * not an error state, as there shouldn't be any 1243 * events to respond to. 1244 */ 1245 if (status) 1246 dev_info(dev, "Failed to unreg for LLDP events\n"); 1247 1248 /* The AQ call to stop the FW LLDP agent will generate 1249 * an error if the agent is already stopped. 1250 */ 1251 status = ice_aq_stop_lldp(&pf->hw, true, true, NULL); 1252 if (status) 1253 dev_warn(dev, "Fail to stop LLDP agent\n"); 1254 /* Use case for having the FW LLDP agent stopped 1255 * will likely not need DCB, so failure to init is 1256 * not a concern of ethtool 1257 */ 1258 status = ice_init_pf_dcb(pf, true); 1259 if (status) 1260 dev_warn(dev, "Fail to init DCB\n"); 1261 } else { 1262 enum ice_status status; 1263 bool dcbx_agent_status; 1264 1265 /* AQ command to start FW LLDP agent will return an 1266 * error if the agent is already started 1267 */ 1268 status = ice_aq_start_lldp(&pf->hw, true, NULL); 1269 if (status) 1270 dev_warn(dev, "Fail to start LLDP Agent\n"); 1271 1272 /* AQ command to start FW DCBX agent will fail if 1273 * the agent is already started 1274 */ 1275 status = ice_aq_start_stop_dcbx(&pf->hw, true, 1276 &dcbx_agent_status, 1277 NULL); 1278 if (status) 1279 dev_dbg(dev, "Failed to start FW DCBX\n"); 1280 1281 dev_info(dev, "FW DCBX agent is %s\n", 1282 dcbx_agent_status ? "ACTIVE" : "DISABLED"); 1283 1284 /* Failure to configure MIB change or init DCB is not 1285 * relevant to ethtool. Print notification that 1286 * registration/init failed but do not return error 1287 * state to ethtool 1288 */ 1289 status = ice_init_pf_dcb(pf, true); 1290 if (status) 1291 dev_dbg(dev, "Fail to init DCB\n"); 1292 1293 /* Remove rule to direct LLDP packets to default VSI. 1294 * The FW LLDP engine will now be consuming them. 1295 */ 1296 ice_cfg_sw_lldp(vsi, false, false); 1297 1298 /* Register for MIB change events */ 1299 status = ice_cfg_lldp_mib_change(&pf->hw, true); 1300 if (status) 1301 dev_dbg(dev, "Fail to enable MIB change events\n"); 1302 1303 ice_nway_reset(netdev); 1304 } 1305 } 1306 if (test_bit(ICE_FLAG_LEGACY_RX, change_flags)) { 1307 /* down and up VSI so that changes of Rx cfg are reflected. */ 1308 ice_down(vsi); 1309 ice_up(vsi); 1310 } 1311 clear_bit(ICE_FLAG_ETHTOOL_CTXT, pf->flags); 1312 return ret; 1313 } 1314 1315 static int ice_get_sset_count(struct net_device *netdev, int sset) 1316 { 1317 switch (sset) { 1318 case ETH_SS_STATS: 1319 /* The number (and order) of strings reported *must* remain 1320 * constant for a given netdevice. This function must not 1321 * report a different number based on run time parameters 1322 * (such as the number of queues in use, or the setting of 1323 * a private ethtool flag). This is due to the nature of the 1324 * ethtool stats API. 1325 * 1326 * Userspace programs such as ethtool must make 3 separate 1327 * ioctl requests, one for size, one for the strings, and 1328 * finally one for the stats. Since these cross into 1329 * userspace, changes to the number or size could result in 1330 * undefined memory access or incorrect string<->value 1331 * correlations for statistics. 1332 * 1333 * Even if it appears to be safe, changes to the size or 1334 * order of strings will suffer from race conditions and are 1335 * not safe. 1336 */ 1337 return ICE_ALL_STATS_LEN(netdev); 1338 case ETH_SS_TEST: 1339 return ICE_TEST_LEN; 1340 case ETH_SS_PRIV_FLAGS: 1341 return ICE_PRIV_FLAG_ARRAY_SIZE; 1342 default: 1343 return -EOPNOTSUPP; 1344 } 1345 } 1346 1347 static void 1348 ice_get_ethtool_stats(struct net_device *netdev, 1349 struct ethtool_stats __always_unused *stats, u64 *data) 1350 { 1351 struct ice_netdev_priv *np = netdev_priv(netdev); 1352 struct ice_vsi *vsi = np->vsi; 1353 struct ice_pf *pf = vsi->back; 1354 struct ice_ring *ring; 1355 unsigned int j; 1356 int i = 0; 1357 char *p; 1358 1359 ice_update_pf_stats(pf); 1360 ice_update_vsi_stats(vsi); 1361 1362 for (j = 0; j < ICE_VSI_STATS_LEN; j++) { 1363 p = (char *)vsi + ice_gstrings_vsi_stats[j].stat_offset; 1364 data[i++] = (ice_gstrings_vsi_stats[j].sizeof_stat == 1365 sizeof(u64)) ? *(u64 *)p : *(u32 *)p; 1366 } 1367 1368 /* populate per queue stats */ 1369 rcu_read_lock(); 1370 1371 ice_for_each_alloc_txq(vsi, j) { 1372 ring = READ_ONCE(vsi->tx_rings[j]); 1373 if (ring) { 1374 data[i++] = ring->stats.pkts; 1375 data[i++] = ring->stats.bytes; 1376 } else { 1377 data[i++] = 0; 1378 data[i++] = 0; 1379 } 1380 } 1381 1382 ice_for_each_alloc_rxq(vsi, j) { 1383 ring = READ_ONCE(vsi->rx_rings[j]); 1384 if (ring) { 1385 data[i++] = ring->stats.pkts; 1386 data[i++] = ring->stats.bytes; 1387 } else { 1388 data[i++] = 0; 1389 data[i++] = 0; 1390 } 1391 } 1392 1393 rcu_read_unlock(); 1394 1395 if (vsi->type != ICE_VSI_PF) 1396 return; 1397 1398 for (j = 0; j < ICE_PF_STATS_LEN; j++) { 1399 p = (char *)pf + ice_gstrings_pf_stats[j].stat_offset; 1400 data[i++] = (ice_gstrings_pf_stats[j].sizeof_stat == 1401 sizeof(u64)) ? *(u64 *)p : *(u32 *)p; 1402 } 1403 1404 for (j = 0; j < ICE_MAX_USER_PRIORITY; j++) { 1405 data[i++] = pf->stats.priority_xon_tx[j]; 1406 data[i++] = pf->stats.priority_xoff_tx[j]; 1407 } 1408 1409 for (j = 0; j < ICE_MAX_USER_PRIORITY; j++) { 1410 data[i++] = pf->stats.priority_xon_rx[j]; 1411 data[i++] = pf->stats.priority_xoff_rx[j]; 1412 } 1413 } 1414 1415 /** 1416 * ice_phy_type_to_ethtool - convert the phy_types to ethtool link modes 1417 * @netdev: network interface device structure 1418 * @ks: ethtool link ksettings struct to fill out 1419 */ 1420 static void 1421 ice_phy_type_to_ethtool(struct net_device *netdev, 1422 struct ethtool_link_ksettings *ks) 1423 { 1424 struct ice_netdev_priv *np = netdev_priv(netdev); 1425 struct ice_link_status *hw_link_info; 1426 bool need_add_adv_mode = false; 1427 struct ice_vsi *vsi = np->vsi; 1428 u64 phy_types_high; 1429 u64 phy_types_low; 1430 1431 hw_link_info = &vsi->port_info->phy.link_info; 1432 phy_types_low = vsi->port_info->phy.phy_type_low; 1433 phy_types_high = vsi->port_info->phy.phy_type_high; 1434 1435 ethtool_link_ksettings_zero_link_mode(ks, supported); 1436 ethtool_link_ksettings_zero_link_mode(ks, advertising); 1437 1438 if (phy_types_low & ICE_PHY_TYPE_LOW_100BASE_TX || 1439 phy_types_low & ICE_PHY_TYPE_LOW_100M_SGMII) { 1440 ethtool_link_ksettings_add_link_mode(ks, supported, 1441 100baseT_Full); 1442 if (!hw_link_info->req_speeds || 1443 hw_link_info->req_speeds & ICE_AQ_LINK_SPEED_100MB) 1444 ethtool_link_ksettings_add_link_mode(ks, advertising, 1445 100baseT_Full); 1446 } 1447 if (phy_types_low & ICE_PHY_TYPE_LOW_1000BASE_T || 1448 phy_types_low & ICE_PHY_TYPE_LOW_1G_SGMII) { 1449 ethtool_link_ksettings_add_link_mode(ks, supported, 1450 1000baseT_Full); 1451 if (!hw_link_info->req_speeds || 1452 hw_link_info->req_speeds & ICE_AQ_LINK_SPEED_1000MB) 1453 ethtool_link_ksettings_add_link_mode(ks, advertising, 1454 1000baseT_Full); 1455 } 1456 if (phy_types_low & ICE_PHY_TYPE_LOW_1000BASE_KX) { 1457 ethtool_link_ksettings_add_link_mode(ks, supported, 1458 1000baseKX_Full); 1459 if (!hw_link_info->req_speeds || 1460 hw_link_info->req_speeds & ICE_AQ_LINK_SPEED_1000MB) 1461 ethtool_link_ksettings_add_link_mode(ks, advertising, 1462 1000baseKX_Full); 1463 } 1464 if (phy_types_low & ICE_PHY_TYPE_LOW_1000BASE_SX || 1465 phy_types_low & ICE_PHY_TYPE_LOW_1000BASE_LX) { 1466 ethtool_link_ksettings_add_link_mode(ks, supported, 1467 1000baseX_Full); 1468 if (!hw_link_info->req_speeds || 1469 hw_link_info->req_speeds & ICE_AQ_LINK_SPEED_1000MB) 1470 ethtool_link_ksettings_add_link_mode(ks, advertising, 1471 1000baseX_Full); 1472 } 1473 if (phy_types_low & ICE_PHY_TYPE_LOW_2500BASE_T) { 1474 ethtool_link_ksettings_add_link_mode(ks, supported, 1475 2500baseT_Full); 1476 if (!hw_link_info->req_speeds || 1477 hw_link_info->req_speeds & ICE_AQ_LINK_SPEED_2500MB) 1478 ethtool_link_ksettings_add_link_mode(ks, advertising, 1479 2500baseT_Full); 1480 } 1481 if (phy_types_low & ICE_PHY_TYPE_LOW_2500BASE_X || 1482 phy_types_low & ICE_PHY_TYPE_LOW_2500BASE_KX) { 1483 ethtool_link_ksettings_add_link_mode(ks, supported, 1484 2500baseX_Full); 1485 if (!hw_link_info->req_speeds || 1486 hw_link_info->req_speeds & ICE_AQ_LINK_SPEED_2500MB) 1487 ethtool_link_ksettings_add_link_mode(ks, advertising, 1488 2500baseX_Full); 1489 } 1490 if (phy_types_low & ICE_PHY_TYPE_LOW_5GBASE_T || 1491 phy_types_low & ICE_PHY_TYPE_LOW_5GBASE_KR) { 1492 ethtool_link_ksettings_add_link_mode(ks, supported, 1493 5000baseT_Full); 1494 if (!hw_link_info->req_speeds || 1495 hw_link_info->req_speeds & ICE_AQ_LINK_SPEED_5GB) 1496 ethtool_link_ksettings_add_link_mode(ks, advertising, 1497 5000baseT_Full); 1498 } 1499 if (phy_types_low & ICE_PHY_TYPE_LOW_10GBASE_T || 1500 phy_types_low & ICE_PHY_TYPE_LOW_10G_SFI_DA || 1501 phy_types_low & ICE_PHY_TYPE_LOW_10G_SFI_AOC_ACC || 1502 phy_types_low & ICE_PHY_TYPE_LOW_10G_SFI_C2C) { 1503 ethtool_link_ksettings_add_link_mode(ks, supported, 1504 10000baseT_Full); 1505 if (!hw_link_info->req_speeds || 1506 hw_link_info->req_speeds & ICE_AQ_LINK_SPEED_10GB) 1507 ethtool_link_ksettings_add_link_mode(ks, advertising, 1508 10000baseT_Full); 1509 } 1510 if (phy_types_low & ICE_PHY_TYPE_LOW_10GBASE_KR_CR1) { 1511 ethtool_link_ksettings_add_link_mode(ks, supported, 1512 10000baseKR_Full); 1513 if (!hw_link_info->req_speeds || 1514 hw_link_info->req_speeds & ICE_AQ_LINK_SPEED_10GB) 1515 ethtool_link_ksettings_add_link_mode(ks, advertising, 1516 10000baseKR_Full); 1517 } 1518 if (phy_types_low & ICE_PHY_TYPE_LOW_10GBASE_SR) { 1519 ethtool_link_ksettings_add_link_mode(ks, supported, 1520 10000baseSR_Full); 1521 if (!hw_link_info->req_speeds || 1522 hw_link_info->req_speeds & ICE_AQ_LINK_SPEED_10GB) 1523 ethtool_link_ksettings_add_link_mode(ks, advertising, 1524 10000baseSR_Full); 1525 } 1526 if (phy_types_low & ICE_PHY_TYPE_LOW_10GBASE_LR) { 1527 ethtool_link_ksettings_add_link_mode(ks, supported, 1528 10000baseLR_Full); 1529 if (!hw_link_info->req_speeds || 1530 hw_link_info->req_speeds & ICE_AQ_LINK_SPEED_10GB) 1531 ethtool_link_ksettings_add_link_mode(ks, advertising, 1532 10000baseLR_Full); 1533 } 1534 if (phy_types_low & ICE_PHY_TYPE_LOW_25GBASE_T || 1535 phy_types_low & ICE_PHY_TYPE_LOW_25GBASE_CR || 1536 phy_types_low & ICE_PHY_TYPE_LOW_25GBASE_CR_S || 1537 phy_types_low & ICE_PHY_TYPE_LOW_25GBASE_CR1 || 1538 phy_types_low & ICE_PHY_TYPE_LOW_25G_AUI_AOC_ACC || 1539 phy_types_low & ICE_PHY_TYPE_LOW_25G_AUI_C2C) { 1540 ethtool_link_ksettings_add_link_mode(ks, supported, 1541 25000baseCR_Full); 1542 if (!hw_link_info->req_speeds || 1543 hw_link_info->req_speeds & ICE_AQ_LINK_SPEED_25GB) 1544 ethtool_link_ksettings_add_link_mode(ks, advertising, 1545 25000baseCR_Full); 1546 } 1547 if (phy_types_low & ICE_PHY_TYPE_LOW_25GBASE_SR || 1548 phy_types_low & ICE_PHY_TYPE_LOW_25GBASE_LR) { 1549 ethtool_link_ksettings_add_link_mode(ks, supported, 1550 25000baseSR_Full); 1551 if (!hw_link_info->req_speeds || 1552 hw_link_info->req_speeds & ICE_AQ_LINK_SPEED_25GB) 1553 ethtool_link_ksettings_add_link_mode(ks, advertising, 1554 25000baseSR_Full); 1555 } 1556 if (phy_types_low & ICE_PHY_TYPE_LOW_25GBASE_KR || 1557 phy_types_low & ICE_PHY_TYPE_LOW_25GBASE_KR_S || 1558 phy_types_low & ICE_PHY_TYPE_LOW_25GBASE_KR1) { 1559 ethtool_link_ksettings_add_link_mode(ks, supported, 1560 25000baseKR_Full); 1561 if (!hw_link_info->req_speeds || 1562 hw_link_info->req_speeds & ICE_AQ_LINK_SPEED_25GB) 1563 ethtool_link_ksettings_add_link_mode(ks, advertising, 1564 25000baseKR_Full); 1565 } 1566 if (phy_types_low & ICE_PHY_TYPE_LOW_40GBASE_KR4) { 1567 ethtool_link_ksettings_add_link_mode(ks, supported, 1568 40000baseKR4_Full); 1569 if (!hw_link_info->req_speeds || 1570 hw_link_info->req_speeds & ICE_AQ_LINK_SPEED_40GB) 1571 ethtool_link_ksettings_add_link_mode(ks, advertising, 1572 40000baseKR4_Full); 1573 } 1574 if (phy_types_low & ICE_PHY_TYPE_LOW_40GBASE_CR4 || 1575 phy_types_low & ICE_PHY_TYPE_LOW_40G_XLAUI_AOC_ACC || 1576 phy_types_low & ICE_PHY_TYPE_LOW_40G_XLAUI) { 1577 ethtool_link_ksettings_add_link_mode(ks, supported, 1578 40000baseCR4_Full); 1579 if (!hw_link_info->req_speeds || 1580 hw_link_info->req_speeds & ICE_AQ_LINK_SPEED_40GB) 1581 ethtool_link_ksettings_add_link_mode(ks, advertising, 1582 40000baseCR4_Full); 1583 } 1584 if (phy_types_low & ICE_PHY_TYPE_LOW_40GBASE_SR4) { 1585 ethtool_link_ksettings_add_link_mode(ks, supported, 1586 40000baseSR4_Full); 1587 if (!hw_link_info->req_speeds || 1588 hw_link_info->req_speeds & ICE_AQ_LINK_SPEED_40GB) 1589 ethtool_link_ksettings_add_link_mode(ks, advertising, 1590 40000baseSR4_Full); 1591 } 1592 if (phy_types_low & ICE_PHY_TYPE_LOW_40GBASE_LR4) { 1593 ethtool_link_ksettings_add_link_mode(ks, supported, 1594 40000baseLR4_Full); 1595 if (!hw_link_info->req_speeds || 1596 hw_link_info->req_speeds & ICE_AQ_LINK_SPEED_40GB) 1597 ethtool_link_ksettings_add_link_mode(ks, advertising, 1598 40000baseLR4_Full); 1599 } 1600 if (phy_types_low & ICE_PHY_TYPE_LOW_50GBASE_CR2 || 1601 phy_types_low & ICE_PHY_TYPE_LOW_50G_LAUI2_AOC_ACC || 1602 phy_types_low & ICE_PHY_TYPE_LOW_50G_LAUI2 || 1603 phy_types_low & ICE_PHY_TYPE_LOW_50G_AUI2_AOC_ACC || 1604 phy_types_low & ICE_PHY_TYPE_LOW_50G_AUI2 || 1605 phy_types_low & ICE_PHY_TYPE_LOW_50GBASE_CP || 1606 phy_types_low & ICE_PHY_TYPE_LOW_50GBASE_SR || 1607 phy_types_low & ICE_PHY_TYPE_LOW_50G_AUI1_AOC_ACC || 1608 phy_types_low & ICE_PHY_TYPE_LOW_50G_AUI1) { 1609 ethtool_link_ksettings_add_link_mode(ks, supported, 1610 50000baseCR2_Full); 1611 if (!hw_link_info->req_speeds || 1612 hw_link_info->req_speeds & ICE_AQ_LINK_SPEED_50GB) 1613 ethtool_link_ksettings_add_link_mode(ks, advertising, 1614 50000baseCR2_Full); 1615 } 1616 if (phy_types_low & ICE_PHY_TYPE_LOW_50GBASE_KR2 || 1617 phy_types_low & ICE_PHY_TYPE_LOW_50GBASE_KR_PAM4) { 1618 ethtool_link_ksettings_add_link_mode(ks, supported, 1619 50000baseKR2_Full); 1620 if (!hw_link_info->req_speeds || 1621 hw_link_info->req_speeds & ICE_AQ_LINK_SPEED_50GB) 1622 ethtool_link_ksettings_add_link_mode(ks, advertising, 1623 50000baseKR2_Full); 1624 } 1625 if (phy_types_low & ICE_PHY_TYPE_LOW_50GBASE_SR2 || 1626 phy_types_low & ICE_PHY_TYPE_LOW_50GBASE_LR2 || 1627 phy_types_low & ICE_PHY_TYPE_LOW_50GBASE_FR || 1628 phy_types_low & ICE_PHY_TYPE_LOW_50GBASE_LR) { 1629 ethtool_link_ksettings_add_link_mode(ks, supported, 1630 50000baseSR2_Full); 1631 if (!hw_link_info->req_speeds || 1632 hw_link_info->req_speeds & ICE_AQ_LINK_SPEED_50GB) 1633 ethtool_link_ksettings_add_link_mode(ks, advertising, 1634 50000baseSR2_Full); 1635 } 1636 if (phy_types_low & ICE_PHY_TYPE_LOW_100GBASE_CR4 || 1637 phy_types_low & ICE_PHY_TYPE_LOW_100G_CAUI4_AOC_ACC || 1638 phy_types_low & ICE_PHY_TYPE_LOW_100G_CAUI4 || 1639 phy_types_low & ICE_PHY_TYPE_LOW_100G_AUI4_AOC_ACC || 1640 phy_types_low & ICE_PHY_TYPE_LOW_100G_AUI4 || 1641 phy_types_low & ICE_PHY_TYPE_LOW_100GBASE_CR_PAM4 || 1642 phy_types_low & ICE_PHY_TYPE_LOW_100GBASE_CP2 || 1643 phy_types_high & ICE_PHY_TYPE_HIGH_100G_CAUI2_AOC_ACC || 1644 phy_types_high & ICE_PHY_TYPE_HIGH_100G_CAUI2 || 1645 phy_types_high & ICE_PHY_TYPE_HIGH_100G_AUI2_AOC_ACC || 1646 phy_types_high & ICE_PHY_TYPE_HIGH_100G_AUI2) { 1647 ethtool_link_ksettings_add_link_mode(ks, supported, 1648 100000baseCR4_Full); 1649 if (!hw_link_info->req_speeds || 1650 hw_link_info->req_speeds & ICE_AQ_LINK_SPEED_100GB) 1651 need_add_adv_mode = true; 1652 } 1653 if (need_add_adv_mode) { 1654 need_add_adv_mode = false; 1655 ethtool_link_ksettings_add_link_mode(ks, advertising, 1656 100000baseCR4_Full); 1657 } 1658 if (phy_types_low & ICE_PHY_TYPE_LOW_100GBASE_SR4 || 1659 phy_types_low & ICE_PHY_TYPE_LOW_100GBASE_SR2) { 1660 ethtool_link_ksettings_add_link_mode(ks, supported, 1661 100000baseSR4_Full); 1662 if (!hw_link_info->req_speeds || 1663 hw_link_info->req_speeds & ICE_AQ_LINK_SPEED_100GB) 1664 need_add_adv_mode = true; 1665 } 1666 if (need_add_adv_mode) { 1667 need_add_adv_mode = false; 1668 ethtool_link_ksettings_add_link_mode(ks, advertising, 1669 100000baseSR4_Full); 1670 } 1671 if (phy_types_low & ICE_PHY_TYPE_LOW_100GBASE_LR4 || 1672 phy_types_low & ICE_PHY_TYPE_LOW_100GBASE_DR) { 1673 ethtool_link_ksettings_add_link_mode(ks, supported, 1674 100000baseLR4_ER4_Full); 1675 if (!hw_link_info->req_speeds || 1676 hw_link_info->req_speeds & ICE_AQ_LINK_SPEED_100GB) 1677 need_add_adv_mode = true; 1678 } 1679 if (need_add_adv_mode) { 1680 need_add_adv_mode = false; 1681 ethtool_link_ksettings_add_link_mode(ks, advertising, 1682 100000baseLR4_ER4_Full); 1683 } 1684 if (phy_types_low & ICE_PHY_TYPE_LOW_100GBASE_KR4 || 1685 phy_types_low & ICE_PHY_TYPE_LOW_100GBASE_KR_PAM4 || 1686 phy_types_high & ICE_PHY_TYPE_HIGH_100GBASE_KR2_PAM4) { 1687 ethtool_link_ksettings_add_link_mode(ks, supported, 1688 100000baseKR4_Full); 1689 if (!hw_link_info->req_speeds || 1690 hw_link_info->req_speeds & ICE_AQ_LINK_SPEED_100GB) 1691 need_add_adv_mode = true; 1692 } 1693 if (need_add_adv_mode) 1694 ethtool_link_ksettings_add_link_mode(ks, advertising, 1695 100000baseKR4_Full); 1696 1697 /* Autoneg PHY types */ 1698 if (phy_types_low & ICE_PHY_TYPE_LOW_100BASE_TX || 1699 phy_types_low & ICE_PHY_TYPE_LOW_1000BASE_T || 1700 phy_types_low & ICE_PHY_TYPE_LOW_1000BASE_KX || 1701 phy_types_low & ICE_PHY_TYPE_LOW_2500BASE_T || 1702 phy_types_low & ICE_PHY_TYPE_LOW_2500BASE_KX || 1703 phy_types_low & ICE_PHY_TYPE_LOW_5GBASE_T || 1704 phy_types_low & ICE_PHY_TYPE_LOW_5GBASE_KR || 1705 phy_types_low & ICE_PHY_TYPE_LOW_10GBASE_T || 1706 phy_types_low & ICE_PHY_TYPE_LOW_10GBASE_KR_CR1 || 1707 phy_types_low & ICE_PHY_TYPE_LOW_25GBASE_T || 1708 phy_types_low & ICE_PHY_TYPE_LOW_25GBASE_CR || 1709 phy_types_low & ICE_PHY_TYPE_LOW_25GBASE_CR_S || 1710 phy_types_low & ICE_PHY_TYPE_LOW_25GBASE_CR1 || 1711 phy_types_low & ICE_PHY_TYPE_LOW_25GBASE_KR || 1712 phy_types_low & ICE_PHY_TYPE_LOW_25GBASE_KR_S || 1713 phy_types_low & ICE_PHY_TYPE_LOW_25GBASE_KR1 || 1714 phy_types_low & ICE_PHY_TYPE_LOW_40GBASE_CR4 || 1715 phy_types_low & ICE_PHY_TYPE_LOW_40GBASE_KR4) { 1716 ethtool_link_ksettings_add_link_mode(ks, supported, 1717 Autoneg); 1718 ethtool_link_ksettings_add_link_mode(ks, advertising, 1719 Autoneg); 1720 } 1721 if (phy_types_low & ICE_PHY_TYPE_LOW_50GBASE_CR2 || 1722 phy_types_low & ICE_PHY_TYPE_LOW_50GBASE_KR2 || 1723 phy_types_low & ICE_PHY_TYPE_LOW_50GBASE_CP || 1724 phy_types_low & ICE_PHY_TYPE_LOW_50GBASE_KR_PAM4) { 1725 ethtool_link_ksettings_add_link_mode(ks, supported, 1726 Autoneg); 1727 ethtool_link_ksettings_add_link_mode(ks, advertising, 1728 Autoneg); 1729 } 1730 if (phy_types_low & ICE_PHY_TYPE_LOW_100GBASE_CR4 || 1731 phy_types_low & ICE_PHY_TYPE_LOW_100GBASE_KR4 || 1732 phy_types_low & ICE_PHY_TYPE_LOW_100GBASE_KR_PAM4 || 1733 phy_types_low & ICE_PHY_TYPE_LOW_100GBASE_CP2) { 1734 ethtool_link_ksettings_add_link_mode(ks, supported, 1735 Autoneg); 1736 ethtool_link_ksettings_add_link_mode(ks, advertising, 1737 Autoneg); 1738 } 1739 } 1740 1741 #define TEST_SET_BITS_TIMEOUT 50 1742 #define TEST_SET_BITS_SLEEP_MAX 2000 1743 #define TEST_SET_BITS_SLEEP_MIN 1000 1744 1745 /** 1746 * ice_get_settings_link_up - Get Link settings for when link is up 1747 * @ks: ethtool ksettings to fill in 1748 * @netdev: network interface device structure 1749 */ 1750 static void 1751 ice_get_settings_link_up(struct ethtool_link_ksettings *ks, 1752 struct net_device *netdev) 1753 { 1754 struct ice_netdev_priv *np = netdev_priv(netdev); 1755 struct ice_port_info *pi = np->vsi->port_info; 1756 struct ice_link_status *link_info; 1757 struct ice_vsi *vsi = np->vsi; 1758 1759 link_info = &vsi->port_info->phy.link_info; 1760 1761 /* Get supported and advertised settings from PHY ability with media */ 1762 ice_phy_type_to_ethtool(netdev, ks); 1763 1764 switch (link_info->link_speed) { 1765 case ICE_AQ_LINK_SPEED_100GB: 1766 ks->base.speed = SPEED_100000; 1767 break; 1768 case ICE_AQ_LINK_SPEED_50GB: 1769 ks->base.speed = SPEED_50000; 1770 break; 1771 case ICE_AQ_LINK_SPEED_40GB: 1772 ks->base.speed = SPEED_40000; 1773 break; 1774 case ICE_AQ_LINK_SPEED_25GB: 1775 ks->base.speed = SPEED_25000; 1776 break; 1777 case ICE_AQ_LINK_SPEED_20GB: 1778 ks->base.speed = SPEED_20000; 1779 break; 1780 case ICE_AQ_LINK_SPEED_10GB: 1781 ks->base.speed = SPEED_10000; 1782 break; 1783 case ICE_AQ_LINK_SPEED_5GB: 1784 ks->base.speed = SPEED_5000; 1785 break; 1786 case ICE_AQ_LINK_SPEED_2500MB: 1787 ks->base.speed = SPEED_2500; 1788 break; 1789 case ICE_AQ_LINK_SPEED_1000MB: 1790 ks->base.speed = SPEED_1000; 1791 break; 1792 case ICE_AQ_LINK_SPEED_100MB: 1793 ks->base.speed = SPEED_100; 1794 break; 1795 default: 1796 netdev_info(netdev, "WARNING: Unrecognized link_speed (0x%x).\n", 1797 link_info->link_speed); 1798 break; 1799 } 1800 ks->base.duplex = DUPLEX_FULL; 1801 1802 if (link_info->an_info & ICE_AQ_AN_COMPLETED) 1803 ethtool_link_ksettings_add_link_mode(ks, lp_advertising, 1804 Autoneg); 1805 1806 /* Set flow control negotiated Rx/Tx pause */ 1807 switch (pi->fc.current_mode) { 1808 case ICE_FC_FULL: 1809 ethtool_link_ksettings_add_link_mode(ks, lp_advertising, Pause); 1810 break; 1811 case ICE_FC_TX_PAUSE: 1812 ethtool_link_ksettings_add_link_mode(ks, lp_advertising, Pause); 1813 ethtool_link_ksettings_add_link_mode(ks, lp_advertising, 1814 Asym_Pause); 1815 break; 1816 case ICE_FC_RX_PAUSE: 1817 ethtool_link_ksettings_add_link_mode(ks, lp_advertising, 1818 Asym_Pause); 1819 break; 1820 case ICE_FC_PFC: 1821 default: 1822 ethtool_link_ksettings_del_link_mode(ks, lp_advertising, Pause); 1823 ethtool_link_ksettings_del_link_mode(ks, lp_advertising, 1824 Asym_Pause); 1825 break; 1826 } 1827 } 1828 1829 /** 1830 * ice_get_settings_link_down - Get the Link settings when link is down 1831 * @ks: ethtool ksettings to fill in 1832 * @netdev: network interface device structure 1833 * 1834 * Reports link settings that can be determined when link is down 1835 */ 1836 static void 1837 ice_get_settings_link_down(struct ethtool_link_ksettings *ks, 1838 struct net_device *netdev) 1839 { 1840 /* link is down and the driver needs to fall back on 1841 * supported PHY types to figure out what info to display 1842 */ 1843 ice_phy_type_to_ethtool(netdev, ks); 1844 1845 /* With no link, speed and duplex are unknown */ 1846 ks->base.speed = SPEED_UNKNOWN; 1847 ks->base.duplex = DUPLEX_UNKNOWN; 1848 } 1849 1850 /** 1851 * ice_get_link_ksettings - Get Link Speed and Duplex settings 1852 * @netdev: network interface device structure 1853 * @ks: ethtool ksettings 1854 * 1855 * Reports speed/duplex settings based on media_type 1856 */ 1857 static int 1858 ice_get_link_ksettings(struct net_device *netdev, 1859 struct ethtool_link_ksettings *ks) 1860 { 1861 struct ice_netdev_priv *np = netdev_priv(netdev); 1862 struct ice_aqc_get_phy_caps_data *caps; 1863 struct ice_link_status *hw_link_info; 1864 struct ice_vsi *vsi = np->vsi; 1865 enum ice_status status; 1866 int err = 0; 1867 1868 ethtool_link_ksettings_zero_link_mode(ks, supported); 1869 ethtool_link_ksettings_zero_link_mode(ks, advertising); 1870 ethtool_link_ksettings_zero_link_mode(ks, lp_advertising); 1871 hw_link_info = &vsi->port_info->phy.link_info; 1872 1873 /* set speed and duplex */ 1874 if (hw_link_info->link_info & ICE_AQ_LINK_UP) 1875 ice_get_settings_link_up(ks, netdev); 1876 else 1877 ice_get_settings_link_down(ks, netdev); 1878 1879 /* set autoneg settings */ 1880 ks->base.autoneg = (hw_link_info->an_info & ICE_AQ_AN_COMPLETED) ? 1881 AUTONEG_ENABLE : AUTONEG_DISABLE; 1882 1883 /* set media type settings */ 1884 switch (vsi->port_info->phy.media_type) { 1885 case ICE_MEDIA_FIBER: 1886 ethtool_link_ksettings_add_link_mode(ks, supported, FIBRE); 1887 ks->base.port = PORT_FIBRE; 1888 break; 1889 case ICE_MEDIA_BASET: 1890 ethtool_link_ksettings_add_link_mode(ks, supported, TP); 1891 ethtool_link_ksettings_add_link_mode(ks, advertising, TP); 1892 ks->base.port = PORT_TP; 1893 break; 1894 case ICE_MEDIA_BACKPLANE: 1895 ethtool_link_ksettings_add_link_mode(ks, supported, Autoneg); 1896 ethtool_link_ksettings_add_link_mode(ks, supported, Backplane); 1897 ethtool_link_ksettings_add_link_mode(ks, advertising, Autoneg); 1898 ethtool_link_ksettings_add_link_mode(ks, advertising, 1899 Backplane); 1900 ks->base.port = PORT_NONE; 1901 break; 1902 case ICE_MEDIA_DA: 1903 ethtool_link_ksettings_add_link_mode(ks, supported, FIBRE); 1904 ethtool_link_ksettings_add_link_mode(ks, advertising, FIBRE); 1905 ks->base.port = PORT_DA; 1906 break; 1907 default: 1908 ks->base.port = PORT_OTHER; 1909 break; 1910 } 1911 1912 /* flow control is symmetric and always supported */ 1913 ethtool_link_ksettings_add_link_mode(ks, supported, Pause); 1914 1915 caps = kzalloc(sizeof(*caps), GFP_KERNEL); 1916 if (!caps) 1917 return -ENOMEM; 1918 1919 status = ice_aq_get_phy_caps(vsi->port_info, false, 1920 ICE_AQC_REPORT_SW_CFG, caps, NULL); 1921 if (status) { 1922 err = -EIO; 1923 goto done; 1924 } 1925 1926 /* Set the advertised flow control based on the PHY capability */ 1927 if ((caps->caps & ICE_AQC_PHY_EN_TX_LINK_PAUSE) && 1928 (caps->caps & ICE_AQC_PHY_EN_RX_LINK_PAUSE)) { 1929 ethtool_link_ksettings_add_link_mode(ks, advertising, Pause); 1930 ethtool_link_ksettings_add_link_mode(ks, advertising, 1931 Asym_Pause); 1932 } else if (caps->caps & ICE_AQC_PHY_EN_TX_LINK_PAUSE) { 1933 ethtool_link_ksettings_add_link_mode(ks, advertising, 1934 Asym_Pause); 1935 } else if (caps->caps & ICE_AQC_PHY_EN_RX_LINK_PAUSE) { 1936 ethtool_link_ksettings_add_link_mode(ks, advertising, Pause); 1937 ethtool_link_ksettings_add_link_mode(ks, advertising, 1938 Asym_Pause); 1939 } else { 1940 ethtool_link_ksettings_del_link_mode(ks, advertising, Pause); 1941 ethtool_link_ksettings_del_link_mode(ks, advertising, 1942 Asym_Pause); 1943 } 1944 1945 /* Set advertised FEC modes based on PHY capability */ 1946 ethtool_link_ksettings_add_link_mode(ks, advertising, FEC_NONE); 1947 1948 if (caps->link_fec_options & ICE_AQC_PHY_FEC_10G_KR_40G_KR4_REQ || 1949 caps->link_fec_options & ICE_AQC_PHY_FEC_25G_KR_REQ) 1950 ethtool_link_ksettings_add_link_mode(ks, advertising, 1951 FEC_BASER); 1952 if (caps->link_fec_options & ICE_AQC_PHY_FEC_25G_RS_528_REQ || 1953 caps->link_fec_options & ICE_AQC_PHY_FEC_25G_RS_544_REQ) 1954 ethtool_link_ksettings_add_link_mode(ks, advertising, FEC_RS); 1955 1956 status = ice_aq_get_phy_caps(vsi->port_info, false, 1957 ICE_AQC_REPORT_TOPO_CAP, caps, NULL); 1958 if (status) { 1959 err = -EIO; 1960 goto done; 1961 } 1962 1963 /* Set supported FEC modes based on PHY capability */ 1964 ethtool_link_ksettings_add_link_mode(ks, supported, FEC_NONE); 1965 1966 if (caps->link_fec_options & ICE_AQC_PHY_FEC_10G_KR_40G_KR4_EN || 1967 caps->link_fec_options & ICE_AQC_PHY_FEC_25G_KR_CLAUSE74_EN) 1968 ethtool_link_ksettings_add_link_mode(ks, supported, FEC_BASER); 1969 if (caps->link_fec_options & ICE_AQC_PHY_FEC_25G_RS_CLAUSE91_EN) 1970 ethtool_link_ksettings_add_link_mode(ks, supported, FEC_RS); 1971 1972 done: 1973 kfree(caps); 1974 return err; 1975 } 1976 1977 /** 1978 * ice_ksettings_find_adv_link_speed - Find advertising link speed 1979 * @ks: ethtool ksettings 1980 */ 1981 static u16 1982 ice_ksettings_find_adv_link_speed(const struct ethtool_link_ksettings *ks) 1983 { 1984 u16 adv_link_speed = 0; 1985 1986 if (ethtool_link_ksettings_test_link_mode(ks, advertising, 1987 100baseT_Full)) 1988 adv_link_speed |= ICE_AQ_LINK_SPEED_100MB; 1989 if (ethtool_link_ksettings_test_link_mode(ks, advertising, 1990 1000baseX_Full)) 1991 adv_link_speed |= ICE_AQ_LINK_SPEED_1000MB; 1992 if (ethtool_link_ksettings_test_link_mode(ks, advertising, 1993 1000baseT_Full) || 1994 ethtool_link_ksettings_test_link_mode(ks, advertising, 1995 1000baseKX_Full)) 1996 adv_link_speed |= ICE_AQ_LINK_SPEED_1000MB; 1997 if (ethtool_link_ksettings_test_link_mode(ks, advertising, 1998 2500baseT_Full)) 1999 adv_link_speed |= ICE_AQ_LINK_SPEED_2500MB; 2000 if (ethtool_link_ksettings_test_link_mode(ks, advertising, 2001 2500baseX_Full)) 2002 adv_link_speed |= ICE_AQ_LINK_SPEED_2500MB; 2003 if (ethtool_link_ksettings_test_link_mode(ks, advertising, 2004 5000baseT_Full)) 2005 adv_link_speed |= ICE_AQ_LINK_SPEED_5GB; 2006 if (ethtool_link_ksettings_test_link_mode(ks, advertising, 2007 10000baseT_Full) || 2008 ethtool_link_ksettings_test_link_mode(ks, advertising, 2009 10000baseKR_Full)) 2010 adv_link_speed |= ICE_AQ_LINK_SPEED_10GB; 2011 if (ethtool_link_ksettings_test_link_mode(ks, advertising, 2012 10000baseSR_Full) || 2013 ethtool_link_ksettings_test_link_mode(ks, advertising, 2014 10000baseLR_Full)) 2015 adv_link_speed |= ICE_AQ_LINK_SPEED_10GB; 2016 if (ethtool_link_ksettings_test_link_mode(ks, advertising, 2017 25000baseCR_Full) || 2018 ethtool_link_ksettings_test_link_mode(ks, advertising, 2019 25000baseSR_Full) || 2020 ethtool_link_ksettings_test_link_mode(ks, advertising, 2021 25000baseKR_Full)) 2022 adv_link_speed |= ICE_AQ_LINK_SPEED_25GB; 2023 if (ethtool_link_ksettings_test_link_mode(ks, advertising, 2024 40000baseCR4_Full) || 2025 ethtool_link_ksettings_test_link_mode(ks, advertising, 2026 40000baseSR4_Full) || 2027 ethtool_link_ksettings_test_link_mode(ks, advertising, 2028 40000baseLR4_Full) || 2029 ethtool_link_ksettings_test_link_mode(ks, advertising, 2030 40000baseKR4_Full)) 2031 adv_link_speed |= ICE_AQ_LINK_SPEED_40GB; 2032 if (ethtool_link_ksettings_test_link_mode(ks, advertising, 2033 50000baseCR2_Full) || 2034 ethtool_link_ksettings_test_link_mode(ks, advertising, 2035 50000baseKR2_Full)) 2036 adv_link_speed |= ICE_AQ_LINK_SPEED_50GB; 2037 if (ethtool_link_ksettings_test_link_mode(ks, advertising, 2038 50000baseSR2_Full)) 2039 adv_link_speed |= ICE_AQ_LINK_SPEED_50GB; 2040 if (ethtool_link_ksettings_test_link_mode(ks, advertising, 2041 100000baseCR4_Full) || 2042 ethtool_link_ksettings_test_link_mode(ks, advertising, 2043 100000baseSR4_Full) || 2044 ethtool_link_ksettings_test_link_mode(ks, advertising, 2045 100000baseLR4_ER4_Full) || 2046 ethtool_link_ksettings_test_link_mode(ks, advertising, 2047 100000baseKR4_Full)) 2048 adv_link_speed |= ICE_AQ_LINK_SPEED_100GB; 2049 2050 return adv_link_speed; 2051 } 2052 2053 /** 2054 * ice_setup_autoneg 2055 * @p: port info 2056 * @ks: ethtool_link_ksettings 2057 * @config: configuration that will be sent down to FW 2058 * @autoneg_enabled: autonegotiation is enabled or not 2059 * @autoneg_changed: will there a change in autonegotiation 2060 * @netdev: network interface device structure 2061 * 2062 * Setup PHY autonegotiation feature 2063 */ 2064 static int 2065 ice_setup_autoneg(struct ice_port_info *p, struct ethtool_link_ksettings *ks, 2066 struct ice_aqc_set_phy_cfg_data *config, 2067 u8 autoneg_enabled, u8 *autoneg_changed, 2068 struct net_device *netdev) 2069 { 2070 int err = 0; 2071 2072 *autoneg_changed = 0; 2073 2074 /* Check autoneg */ 2075 if (autoneg_enabled == AUTONEG_ENABLE) { 2076 /* If autoneg was not already enabled */ 2077 if (!(p->phy.link_info.an_info & ICE_AQ_AN_COMPLETED)) { 2078 /* If autoneg is not supported, return error */ 2079 if (!ethtool_link_ksettings_test_link_mode(ks, 2080 supported, 2081 Autoneg)) { 2082 netdev_info(netdev, "Autoneg not supported on this phy.\n"); 2083 err = -EINVAL; 2084 } else { 2085 /* Autoneg is allowed to change */ 2086 config->caps |= ICE_AQ_PHY_ENA_AUTO_LINK_UPDT; 2087 *autoneg_changed = 1; 2088 } 2089 } 2090 } else { 2091 /* If autoneg is currently enabled */ 2092 if (p->phy.link_info.an_info & ICE_AQ_AN_COMPLETED) { 2093 /* If autoneg is supported 10GBASE_T is the only PHY 2094 * that can disable it, so otherwise return error 2095 */ 2096 if (ethtool_link_ksettings_test_link_mode(ks, 2097 supported, 2098 Autoneg)) { 2099 netdev_info(netdev, "Autoneg cannot be disabled on this phy\n"); 2100 err = -EINVAL; 2101 } else { 2102 /* Autoneg is allowed to change */ 2103 config->caps &= ~ICE_AQ_PHY_ENA_AUTO_LINK_UPDT; 2104 *autoneg_changed = 1; 2105 } 2106 } 2107 } 2108 2109 return err; 2110 } 2111 2112 /** 2113 * ice_set_link_ksettings - Set Speed and Duplex 2114 * @netdev: network interface device structure 2115 * @ks: ethtool ksettings 2116 * 2117 * Set speed/duplex per media_types advertised/forced 2118 */ 2119 static int 2120 ice_set_link_ksettings(struct net_device *netdev, 2121 const struct ethtool_link_ksettings *ks) 2122 { 2123 u8 autoneg, timeout = TEST_SET_BITS_TIMEOUT, lport = 0; 2124 struct ice_netdev_priv *np = netdev_priv(netdev); 2125 struct ethtool_link_ksettings safe_ks, copy_ks; 2126 struct ice_aqc_get_phy_caps_data *abilities; 2127 u16 adv_link_speed, curr_link_speed, idx; 2128 struct ice_aqc_set_phy_cfg_data config; 2129 struct ice_pf *pf = np->vsi->back; 2130 struct ice_port_info *p; 2131 u8 autoneg_changed = 0; 2132 enum ice_status status; 2133 u64 phy_type_high; 2134 u64 phy_type_low; 2135 int err = 0; 2136 bool linkup; 2137 2138 p = np->vsi->port_info; 2139 2140 if (!p) 2141 return -EOPNOTSUPP; 2142 2143 /* Check if this is LAN VSI */ 2144 ice_for_each_vsi(pf, idx) 2145 if (pf->vsi[idx]->type == ICE_VSI_PF) { 2146 if (np->vsi != pf->vsi[idx]) 2147 return -EOPNOTSUPP; 2148 break; 2149 } 2150 2151 if (p->phy.media_type != ICE_MEDIA_BASET && 2152 p->phy.media_type != ICE_MEDIA_FIBER && 2153 p->phy.media_type != ICE_MEDIA_BACKPLANE && 2154 p->phy.media_type != ICE_MEDIA_DA && 2155 p->phy.link_info.link_info & ICE_AQ_LINK_UP) 2156 return -EOPNOTSUPP; 2157 2158 /* copy the ksettings to copy_ks to avoid modifying the original */ 2159 memcpy(©_ks, ks, sizeof(copy_ks)); 2160 2161 /* save autoneg out of ksettings */ 2162 autoneg = copy_ks.base.autoneg; 2163 2164 memset(&safe_ks, 0, sizeof(safe_ks)); 2165 2166 /* Get link modes supported by hardware.*/ 2167 ice_phy_type_to_ethtool(netdev, &safe_ks); 2168 2169 /* and check against modes requested by user. 2170 * Return an error if unsupported mode was set. 2171 */ 2172 if (!bitmap_subset(copy_ks.link_modes.advertising, 2173 safe_ks.link_modes.supported, 2174 __ETHTOOL_LINK_MODE_MASK_NBITS)) 2175 return -EINVAL; 2176 2177 /* get our own copy of the bits to check against */ 2178 memset(&safe_ks, 0, sizeof(safe_ks)); 2179 safe_ks.base.cmd = copy_ks.base.cmd; 2180 safe_ks.base.link_mode_masks_nwords = 2181 copy_ks.base.link_mode_masks_nwords; 2182 ice_get_link_ksettings(netdev, &safe_ks); 2183 2184 /* set autoneg back to what it currently is */ 2185 copy_ks.base.autoneg = safe_ks.base.autoneg; 2186 /* we don't compare the speed */ 2187 copy_ks.base.speed = safe_ks.base.speed; 2188 2189 /* If copy_ks.base and safe_ks.base are not the same now, then they are 2190 * trying to set something that we do not support. 2191 */ 2192 if (memcmp(©_ks.base, &safe_ks.base, sizeof(copy_ks.base))) 2193 return -EOPNOTSUPP; 2194 2195 while (test_and_set_bit(__ICE_CFG_BUSY, pf->state)) { 2196 timeout--; 2197 if (!timeout) 2198 return -EBUSY; 2199 usleep_range(TEST_SET_BITS_SLEEP_MIN, TEST_SET_BITS_SLEEP_MAX); 2200 } 2201 2202 abilities = kzalloc(sizeof(*abilities), GFP_KERNEL); 2203 if (!abilities) 2204 return -ENOMEM; 2205 2206 /* Get the current PHY config */ 2207 status = ice_aq_get_phy_caps(p, false, ICE_AQC_REPORT_SW_CFG, abilities, 2208 NULL); 2209 if (status) { 2210 err = -EAGAIN; 2211 goto done; 2212 } 2213 2214 /* Copy abilities to config in case autoneg is not set below */ 2215 memset(&config, 0, sizeof(config)); 2216 config.caps = abilities->caps & ~ICE_AQC_PHY_AN_MODE; 2217 if (abilities->caps & ICE_AQC_PHY_AN_MODE) 2218 config.caps |= ICE_AQ_PHY_ENA_AUTO_LINK_UPDT; 2219 2220 /* Check autoneg */ 2221 err = ice_setup_autoneg(p, &safe_ks, &config, autoneg, &autoneg_changed, 2222 netdev); 2223 2224 if (err) 2225 goto done; 2226 2227 /* Call to get the current link speed */ 2228 p->phy.get_link_info = true; 2229 status = ice_get_link_status(p, &linkup); 2230 if (status) { 2231 err = -EAGAIN; 2232 goto done; 2233 } 2234 2235 curr_link_speed = p->phy.link_info.link_speed; 2236 adv_link_speed = ice_ksettings_find_adv_link_speed(ks); 2237 2238 /* If speed didn't get set, set it to what it currently is. 2239 * This is needed because if advertise is 0 (as it is when autoneg 2240 * is disabled) then speed won't get set. 2241 */ 2242 if (!adv_link_speed) 2243 adv_link_speed = curr_link_speed; 2244 2245 /* Convert the advertise link speeds to their corresponded PHY_TYPE */ 2246 ice_update_phy_type(&phy_type_low, &phy_type_high, adv_link_speed); 2247 2248 if (!autoneg_changed && adv_link_speed == curr_link_speed) { 2249 netdev_info(netdev, "Nothing changed, exiting without setting anything.\n"); 2250 goto done; 2251 } 2252 2253 /* copy over the rest of the abilities */ 2254 config.low_power_ctrl = abilities->low_power_ctrl; 2255 config.eee_cap = abilities->eee_cap; 2256 config.eeer_value = abilities->eeer_value; 2257 config.link_fec_opt = abilities->link_fec_options; 2258 2259 /* save the requested speeds */ 2260 p->phy.link_info.req_speeds = adv_link_speed; 2261 2262 /* set link and auto negotiation so changes take effect */ 2263 config.caps |= ICE_AQ_PHY_ENA_LINK; 2264 2265 if (phy_type_low || phy_type_high) { 2266 config.phy_type_high = cpu_to_le64(phy_type_high) & 2267 abilities->phy_type_high; 2268 config.phy_type_low = cpu_to_le64(phy_type_low) & 2269 abilities->phy_type_low; 2270 } else { 2271 err = -EAGAIN; 2272 netdev_info(netdev, "Nothing changed. No PHY_TYPE is corresponded to advertised link speed.\n"); 2273 goto done; 2274 } 2275 2276 /* If link is up put link down */ 2277 if (p->phy.link_info.link_info & ICE_AQ_LINK_UP) { 2278 /* Tell the OS link is going down, the link will go 2279 * back up when fw says it is ready asynchronously 2280 */ 2281 ice_print_link_msg(np->vsi, false); 2282 netif_carrier_off(netdev); 2283 netif_tx_stop_all_queues(netdev); 2284 } 2285 2286 /* make the aq call */ 2287 status = ice_aq_set_phy_cfg(&pf->hw, lport, &config, NULL); 2288 if (status) { 2289 netdev_info(netdev, "Set phy config failed,\n"); 2290 err = -EAGAIN; 2291 } 2292 2293 done: 2294 kfree(abilities); 2295 clear_bit(__ICE_CFG_BUSY, pf->state); 2296 2297 return err; 2298 } 2299 2300 /** 2301 * ice_parse_hdrs - parses headers from RSS hash input 2302 * @nfc: ethtool rxnfc command 2303 * 2304 * This function parses the rxnfc command and returns intended 2305 * header types for RSS configuration 2306 */ 2307 static u32 ice_parse_hdrs(struct ethtool_rxnfc *nfc) 2308 { 2309 u32 hdrs = ICE_FLOW_SEG_HDR_NONE; 2310 2311 switch (nfc->flow_type) { 2312 case TCP_V4_FLOW: 2313 hdrs |= ICE_FLOW_SEG_HDR_TCP | ICE_FLOW_SEG_HDR_IPV4; 2314 break; 2315 case UDP_V4_FLOW: 2316 hdrs |= ICE_FLOW_SEG_HDR_UDP | ICE_FLOW_SEG_HDR_IPV4; 2317 break; 2318 case SCTP_V4_FLOW: 2319 hdrs |= ICE_FLOW_SEG_HDR_SCTP | ICE_FLOW_SEG_HDR_IPV4; 2320 break; 2321 case TCP_V6_FLOW: 2322 hdrs |= ICE_FLOW_SEG_HDR_TCP | ICE_FLOW_SEG_HDR_IPV6; 2323 break; 2324 case UDP_V6_FLOW: 2325 hdrs |= ICE_FLOW_SEG_HDR_UDP | ICE_FLOW_SEG_HDR_IPV6; 2326 break; 2327 case SCTP_V6_FLOW: 2328 hdrs |= ICE_FLOW_SEG_HDR_SCTP | ICE_FLOW_SEG_HDR_IPV6; 2329 break; 2330 default: 2331 break; 2332 } 2333 return hdrs; 2334 } 2335 2336 #define ICE_FLOW_HASH_FLD_IPV4_SA BIT_ULL(ICE_FLOW_FIELD_IDX_IPV4_SA) 2337 #define ICE_FLOW_HASH_FLD_IPV6_SA BIT_ULL(ICE_FLOW_FIELD_IDX_IPV6_SA) 2338 #define ICE_FLOW_HASH_FLD_IPV4_DA BIT_ULL(ICE_FLOW_FIELD_IDX_IPV4_DA) 2339 #define ICE_FLOW_HASH_FLD_IPV6_DA BIT_ULL(ICE_FLOW_FIELD_IDX_IPV6_DA) 2340 #define ICE_FLOW_HASH_FLD_TCP_SRC_PORT BIT_ULL(ICE_FLOW_FIELD_IDX_TCP_SRC_PORT) 2341 #define ICE_FLOW_HASH_FLD_TCP_DST_PORT BIT_ULL(ICE_FLOW_FIELD_IDX_TCP_DST_PORT) 2342 #define ICE_FLOW_HASH_FLD_UDP_SRC_PORT BIT_ULL(ICE_FLOW_FIELD_IDX_UDP_SRC_PORT) 2343 #define ICE_FLOW_HASH_FLD_UDP_DST_PORT BIT_ULL(ICE_FLOW_FIELD_IDX_UDP_DST_PORT) 2344 #define ICE_FLOW_HASH_FLD_SCTP_SRC_PORT \ 2345 BIT_ULL(ICE_FLOW_FIELD_IDX_SCTP_SRC_PORT) 2346 #define ICE_FLOW_HASH_FLD_SCTP_DST_PORT \ 2347 BIT_ULL(ICE_FLOW_FIELD_IDX_SCTP_DST_PORT) 2348 2349 /** 2350 * ice_parse_hash_flds - parses hash fields from RSS hash input 2351 * @nfc: ethtool rxnfc command 2352 * 2353 * This function parses the rxnfc command and returns intended 2354 * hash fields for RSS configuration 2355 */ 2356 static u64 ice_parse_hash_flds(struct ethtool_rxnfc *nfc) 2357 { 2358 u64 hfld = ICE_HASH_INVALID; 2359 2360 if (nfc->data & RXH_IP_SRC || nfc->data & RXH_IP_DST) { 2361 switch (nfc->flow_type) { 2362 case TCP_V4_FLOW: 2363 case UDP_V4_FLOW: 2364 case SCTP_V4_FLOW: 2365 if (nfc->data & RXH_IP_SRC) 2366 hfld |= ICE_FLOW_HASH_FLD_IPV4_SA; 2367 if (nfc->data & RXH_IP_DST) 2368 hfld |= ICE_FLOW_HASH_FLD_IPV4_DA; 2369 break; 2370 case TCP_V6_FLOW: 2371 case UDP_V6_FLOW: 2372 case SCTP_V6_FLOW: 2373 if (nfc->data & RXH_IP_SRC) 2374 hfld |= ICE_FLOW_HASH_FLD_IPV6_SA; 2375 if (nfc->data & RXH_IP_DST) 2376 hfld |= ICE_FLOW_HASH_FLD_IPV6_DA; 2377 break; 2378 default: 2379 break; 2380 } 2381 } 2382 2383 if (nfc->data & RXH_L4_B_0_1 || nfc->data & RXH_L4_B_2_3) { 2384 switch (nfc->flow_type) { 2385 case TCP_V4_FLOW: 2386 case TCP_V6_FLOW: 2387 if (nfc->data & RXH_L4_B_0_1) 2388 hfld |= ICE_FLOW_HASH_FLD_TCP_SRC_PORT; 2389 if (nfc->data & RXH_L4_B_2_3) 2390 hfld |= ICE_FLOW_HASH_FLD_TCP_DST_PORT; 2391 break; 2392 case UDP_V4_FLOW: 2393 case UDP_V6_FLOW: 2394 if (nfc->data & RXH_L4_B_0_1) 2395 hfld |= ICE_FLOW_HASH_FLD_UDP_SRC_PORT; 2396 if (nfc->data & RXH_L4_B_2_3) 2397 hfld |= ICE_FLOW_HASH_FLD_UDP_DST_PORT; 2398 break; 2399 case SCTP_V4_FLOW: 2400 case SCTP_V6_FLOW: 2401 if (nfc->data & RXH_L4_B_0_1) 2402 hfld |= ICE_FLOW_HASH_FLD_SCTP_SRC_PORT; 2403 if (nfc->data & RXH_L4_B_2_3) 2404 hfld |= ICE_FLOW_HASH_FLD_SCTP_DST_PORT; 2405 break; 2406 default: 2407 break; 2408 } 2409 } 2410 2411 return hfld; 2412 } 2413 2414 /** 2415 * ice_set_rss_hash_opt - Enable/Disable flow types for RSS hash 2416 * @vsi: the VSI being configured 2417 * @nfc: ethtool rxnfc command 2418 * 2419 * Returns Success if the flow input set is supported. 2420 */ 2421 static int 2422 ice_set_rss_hash_opt(struct ice_vsi *vsi, struct ethtool_rxnfc *nfc) 2423 { 2424 struct ice_pf *pf = vsi->back; 2425 enum ice_status status; 2426 struct device *dev; 2427 u64 hashed_flds; 2428 u32 hdrs; 2429 2430 dev = ice_pf_to_dev(pf); 2431 if (ice_is_safe_mode(pf)) { 2432 dev_dbg(dev, "Advanced RSS disabled. Package download failed, vsi num = %d\n", 2433 vsi->vsi_num); 2434 return -EINVAL; 2435 } 2436 2437 hashed_flds = ice_parse_hash_flds(nfc); 2438 if (hashed_flds == ICE_HASH_INVALID) { 2439 dev_dbg(dev, "Invalid hash fields, vsi num = %d\n", 2440 vsi->vsi_num); 2441 return -EINVAL; 2442 } 2443 2444 hdrs = ice_parse_hdrs(nfc); 2445 if (hdrs == ICE_FLOW_SEG_HDR_NONE) { 2446 dev_dbg(dev, "Header type is not valid, vsi num = %d\n", 2447 vsi->vsi_num); 2448 return -EINVAL; 2449 } 2450 2451 status = ice_add_rss_cfg(&pf->hw, vsi->idx, hashed_flds, hdrs); 2452 if (status) { 2453 dev_dbg(dev, "ice_add_rss_cfg failed, vsi num = %d, error = %d\n", 2454 vsi->vsi_num, status); 2455 return -EINVAL; 2456 } 2457 2458 return 0; 2459 } 2460 2461 /** 2462 * ice_get_rss_hash_opt - Retrieve hash fields for a given flow-type 2463 * @vsi: the VSI being configured 2464 * @nfc: ethtool rxnfc command 2465 */ 2466 static void 2467 ice_get_rss_hash_opt(struct ice_vsi *vsi, struct ethtool_rxnfc *nfc) 2468 { 2469 struct ice_pf *pf = vsi->back; 2470 struct device *dev; 2471 u64 hash_flds; 2472 u32 hdrs; 2473 2474 dev = ice_pf_to_dev(pf); 2475 2476 nfc->data = 0; 2477 if (ice_is_safe_mode(pf)) { 2478 dev_dbg(dev, "Advanced RSS disabled. Package download failed, vsi num = %d\n", 2479 vsi->vsi_num); 2480 return; 2481 } 2482 2483 hdrs = ice_parse_hdrs(nfc); 2484 if (hdrs == ICE_FLOW_SEG_HDR_NONE) { 2485 dev_dbg(dev, "Header type is not valid, vsi num = %d\n", 2486 vsi->vsi_num); 2487 return; 2488 } 2489 2490 hash_flds = ice_get_rss_cfg(&pf->hw, vsi->idx, hdrs); 2491 if (hash_flds == ICE_HASH_INVALID) { 2492 dev_dbg(dev, "No hash fields found for the given header type, vsi num = %d\n", 2493 vsi->vsi_num); 2494 return; 2495 } 2496 2497 if (hash_flds & ICE_FLOW_HASH_FLD_IPV4_SA || 2498 hash_flds & ICE_FLOW_HASH_FLD_IPV6_SA) 2499 nfc->data |= (u64)RXH_IP_SRC; 2500 2501 if (hash_flds & ICE_FLOW_HASH_FLD_IPV4_DA || 2502 hash_flds & ICE_FLOW_HASH_FLD_IPV6_DA) 2503 nfc->data |= (u64)RXH_IP_DST; 2504 2505 if (hash_flds & ICE_FLOW_HASH_FLD_TCP_SRC_PORT || 2506 hash_flds & ICE_FLOW_HASH_FLD_UDP_SRC_PORT || 2507 hash_flds & ICE_FLOW_HASH_FLD_SCTP_SRC_PORT) 2508 nfc->data |= (u64)RXH_L4_B_0_1; 2509 2510 if (hash_flds & ICE_FLOW_HASH_FLD_TCP_DST_PORT || 2511 hash_flds & ICE_FLOW_HASH_FLD_UDP_DST_PORT || 2512 hash_flds & ICE_FLOW_HASH_FLD_SCTP_DST_PORT) 2513 nfc->data |= (u64)RXH_L4_B_2_3; 2514 } 2515 2516 /** 2517 * ice_set_rxnfc - command to set Rx flow rules. 2518 * @netdev: network interface device structure 2519 * @cmd: ethtool rxnfc command 2520 * 2521 * Returns 0 for success and negative values for errors 2522 */ 2523 static int ice_set_rxnfc(struct net_device *netdev, struct ethtool_rxnfc *cmd) 2524 { 2525 struct ice_netdev_priv *np = netdev_priv(netdev); 2526 struct ice_vsi *vsi = np->vsi; 2527 2528 switch (cmd->cmd) { 2529 case ETHTOOL_SRXFH: 2530 return ice_set_rss_hash_opt(vsi, cmd); 2531 default: 2532 break; 2533 } 2534 return -EOPNOTSUPP; 2535 } 2536 2537 /** 2538 * ice_get_rxnfc - command to get Rx flow classification rules 2539 * @netdev: network interface device structure 2540 * @cmd: ethtool rxnfc command 2541 * @rule_locs: buffer to rturn Rx flow classification rules 2542 * 2543 * Returns Success if the command is supported. 2544 */ 2545 static int 2546 ice_get_rxnfc(struct net_device *netdev, struct ethtool_rxnfc *cmd, 2547 u32 __always_unused *rule_locs) 2548 { 2549 struct ice_netdev_priv *np = netdev_priv(netdev); 2550 struct ice_vsi *vsi = np->vsi; 2551 int ret = -EOPNOTSUPP; 2552 2553 switch (cmd->cmd) { 2554 case ETHTOOL_GRXRINGS: 2555 cmd->data = vsi->rss_size; 2556 ret = 0; 2557 break; 2558 case ETHTOOL_GRXFH: 2559 ice_get_rss_hash_opt(vsi, cmd); 2560 ret = 0; 2561 break; 2562 default: 2563 break; 2564 } 2565 2566 return ret; 2567 } 2568 2569 static void 2570 ice_get_ringparam(struct net_device *netdev, struct ethtool_ringparam *ring) 2571 { 2572 struct ice_netdev_priv *np = netdev_priv(netdev); 2573 struct ice_vsi *vsi = np->vsi; 2574 2575 ring->rx_max_pending = ICE_MAX_NUM_DESC; 2576 ring->tx_max_pending = ICE_MAX_NUM_DESC; 2577 ring->rx_pending = vsi->rx_rings[0]->count; 2578 ring->tx_pending = vsi->tx_rings[0]->count; 2579 2580 /* Rx mini and jumbo rings are not supported */ 2581 ring->rx_mini_max_pending = 0; 2582 ring->rx_jumbo_max_pending = 0; 2583 ring->rx_mini_pending = 0; 2584 ring->rx_jumbo_pending = 0; 2585 } 2586 2587 static int 2588 ice_set_ringparam(struct net_device *netdev, struct ethtool_ringparam *ring) 2589 { 2590 struct ice_ring *tx_rings = NULL, *rx_rings = NULL; 2591 struct ice_netdev_priv *np = netdev_priv(netdev); 2592 struct ice_ring *xdp_rings = NULL; 2593 struct ice_vsi *vsi = np->vsi; 2594 struct ice_pf *pf = vsi->back; 2595 int i, timeout = 50, err = 0; 2596 u32 new_rx_cnt, new_tx_cnt; 2597 2598 if (ring->tx_pending > ICE_MAX_NUM_DESC || 2599 ring->tx_pending < ICE_MIN_NUM_DESC || 2600 ring->rx_pending > ICE_MAX_NUM_DESC || 2601 ring->rx_pending < ICE_MIN_NUM_DESC) { 2602 netdev_err(netdev, "Descriptors requested (Tx: %d / Rx: %d) out of range [%d-%d] (increment %d)\n", 2603 ring->tx_pending, ring->rx_pending, 2604 ICE_MIN_NUM_DESC, ICE_MAX_NUM_DESC, 2605 ICE_REQ_DESC_MULTIPLE); 2606 return -EINVAL; 2607 } 2608 2609 new_tx_cnt = ALIGN(ring->tx_pending, ICE_REQ_DESC_MULTIPLE); 2610 if (new_tx_cnt != ring->tx_pending) 2611 netdev_info(netdev, "Requested Tx descriptor count rounded up to %d\n", 2612 new_tx_cnt); 2613 new_rx_cnt = ALIGN(ring->rx_pending, ICE_REQ_DESC_MULTIPLE); 2614 if (new_rx_cnt != ring->rx_pending) 2615 netdev_info(netdev, "Requested Rx descriptor count rounded up to %d\n", 2616 new_rx_cnt); 2617 2618 /* if nothing to do return success */ 2619 if (new_tx_cnt == vsi->tx_rings[0]->count && 2620 new_rx_cnt == vsi->rx_rings[0]->count) { 2621 netdev_dbg(netdev, "Nothing to change, descriptor count is same as requested\n"); 2622 return 0; 2623 } 2624 2625 /* If there is a AF_XDP UMEM attached to any of Rx rings, 2626 * disallow changing the number of descriptors -- regardless 2627 * if the netdev is running or not. 2628 */ 2629 if (ice_xsk_any_rx_ring_ena(vsi)) 2630 return -EBUSY; 2631 2632 while (test_and_set_bit(__ICE_CFG_BUSY, pf->state)) { 2633 timeout--; 2634 if (!timeout) 2635 return -EBUSY; 2636 usleep_range(1000, 2000); 2637 } 2638 2639 /* set for the next time the netdev is started */ 2640 if (!netif_running(vsi->netdev)) { 2641 for (i = 0; i < vsi->alloc_txq; i++) 2642 vsi->tx_rings[i]->count = new_tx_cnt; 2643 for (i = 0; i < vsi->alloc_rxq; i++) 2644 vsi->rx_rings[i]->count = new_rx_cnt; 2645 if (ice_is_xdp_ena_vsi(vsi)) 2646 for (i = 0; i < vsi->num_xdp_txq; i++) 2647 vsi->xdp_rings[i]->count = new_tx_cnt; 2648 vsi->num_tx_desc = new_tx_cnt; 2649 vsi->num_rx_desc = new_rx_cnt; 2650 netdev_dbg(netdev, "Link is down, descriptor count change happens when link is brought up\n"); 2651 goto done; 2652 } 2653 2654 if (new_tx_cnt == vsi->tx_rings[0]->count) 2655 goto process_rx; 2656 2657 /* alloc updated Tx resources */ 2658 netdev_info(netdev, "Changing Tx descriptor count from %d to %d\n", 2659 vsi->tx_rings[0]->count, new_tx_cnt); 2660 2661 tx_rings = kcalloc(vsi->num_txq, sizeof(*tx_rings), GFP_KERNEL); 2662 if (!tx_rings) { 2663 err = -ENOMEM; 2664 goto done; 2665 } 2666 2667 ice_for_each_txq(vsi, i) { 2668 /* clone ring and setup updated count */ 2669 tx_rings[i] = *vsi->tx_rings[i]; 2670 tx_rings[i].count = new_tx_cnt; 2671 tx_rings[i].desc = NULL; 2672 tx_rings[i].tx_buf = NULL; 2673 err = ice_setup_tx_ring(&tx_rings[i]); 2674 if (err) { 2675 while (i--) 2676 ice_clean_tx_ring(&tx_rings[i]); 2677 kfree(tx_rings); 2678 goto done; 2679 } 2680 } 2681 2682 if (!ice_is_xdp_ena_vsi(vsi)) 2683 goto process_rx; 2684 2685 /* alloc updated XDP resources */ 2686 netdev_info(netdev, "Changing XDP descriptor count from %d to %d\n", 2687 vsi->xdp_rings[0]->count, new_tx_cnt); 2688 2689 xdp_rings = kcalloc(vsi->num_xdp_txq, sizeof(*xdp_rings), GFP_KERNEL); 2690 if (!xdp_rings) { 2691 err = -ENOMEM; 2692 goto free_tx; 2693 } 2694 2695 for (i = 0; i < vsi->num_xdp_txq; i++) { 2696 /* clone ring and setup updated count */ 2697 xdp_rings[i] = *vsi->xdp_rings[i]; 2698 xdp_rings[i].count = new_tx_cnt; 2699 xdp_rings[i].desc = NULL; 2700 xdp_rings[i].tx_buf = NULL; 2701 err = ice_setup_tx_ring(&xdp_rings[i]); 2702 if (err) { 2703 while (i--) 2704 ice_clean_tx_ring(&xdp_rings[i]); 2705 kfree(xdp_rings); 2706 goto free_tx; 2707 } 2708 ice_set_ring_xdp(&xdp_rings[i]); 2709 } 2710 2711 process_rx: 2712 if (new_rx_cnt == vsi->rx_rings[0]->count) 2713 goto process_link; 2714 2715 /* alloc updated Rx resources */ 2716 netdev_info(netdev, "Changing Rx descriptor count from %d to %d\n", 2717 vsi->rx_rings[0]->count, new_rx_cnt); 2718 2719 rx_rings = kcalloc(vsi->num_rxq, sizeof(*rx_rings), GFP_KERNEL); 2720 if (!rx_rings) { 2721 err = -ENOMEM; 2722 goto done; 2723 } 2724 2725 ice_for_each_rxq(vsi, i) { 2726 /* clone ring and setup updated count */ 2727 rx_rings[i] = *vsi->rx_rings[i]; 2728 rx_rings[i].count = new_rx_cnt; 2729 rx_rings[i].desc = NULL; 2730 rx_rings[i].rx_buf = NULL; 2731 /* this is to allow wr32 to have something to write to 2732 * during early allocation of Rx buffers 2733 */ 2734 rx_rings[i].tail = vsi->back->hw.hw_addr + PRTGEN_STATUS; 2735 2736 err = ice_setup_rx_ring(&rx_rings[i]); 2737 if (err) 2738 goto rx_unwind; 2739 2740 /* allocate Rx buffers */ 2741 err = ice_alloc_rx_bufs(&rx_rings[i], 2742 ICE_DESC_UNUSED(&rx_rings[i])); 2743 rx_unwind: 2744 if (err) { 2745 while (i) { 2746 i--; 2747 ice_free_rx_ring(&rx_rings[i]); 2748 } 2749 kfree(rx_rings); 2750 err = -ENOMEM; 2751 goto free_tx; 2752 } 2753 } 2754 2755 process_link: 2756 /* Bring interface down, copy in the new ring info, then restore the 2757 * interface. if VSI is up, bring it down and then back up 2758 */ 2759 if (!test_and_set_bit(__ICE_DOWN, vsi->state)) { 2760 ice_down(vsi); 2761 2762 if (tx_rings) { 2763 ice_for_each_txq(vsi, i) { 2764 ice_free_tx_ring(vsi->tx_rings[i]); 2765 *vsi->tx_rings[i] = tx_rings[i]; 2766 } 2767 kfree(tx_rings); 2768 } 2769 2770 if (rx_rings) { 2771 ice_for_each_rxq(vsi, i) { 2772 ice_free_rx_ring(vsi->rx_rings[i]); 2773 /* copy the real tail offset */ 2774 rx_rings[i].tail = vsi->rx_rings[i]->tail; 2775 /* this is to fake out the allocation routine 2776 * into thinking it has to realloc everything 2777 * but the recycling logic will let us re-use 2778 * the buffers allocated above 2779 */ 2780 rx_rings[i].next_to_use = 0; 2781 rx_rings[i].next_to_clean = 0; 2782 rx_rings[i].next_to_alloc = 0; 2783 *vsi->rx_rings[i] = rx_rings[i]; 2784 } 2785 kfree(rx_rings); 2786 } 2787 2788 if (xdp_rings) { 2789 for (i = 0; i < vsi->num_xdp_txq; i++) { 2790 ice_free_tx_ring(vsi->xdp_rings[i]); 2791 *vsi->xdp_rings[i] = xdp_rings[i]; 2792 } 2793 kfree(xdp_rings); 2794 } 2795 2796 vsi->num_tx_desc = new_tx_cnt; 2797 vsi->num_rx_desc = new_rx_cnt; 2798 ice_up(vsi); 2799 } 2800 goto done; 2801 2802 free_tx: 2803 /* error cleanup if the Rx allocations failed after getting Tx */ 2804 if (tx_rings) { 2805 ice_for_each_txq(vsi, i) 2806 ice_free_tx_ring(&tx_rings[i]); 2807 kfree(tx_rings); 2808 } 2809 2810 done: 2811 clear_bit(__ICE_CFG_BUSY, pf->state); 2812 return err; 2813 } 2814 2815 /** 2816 * ice_get_pauseparam - Get Flow Control status 2817 * @netdev: network interface device structure 2818 * @pause: ethernet pause (flow control) parameters 2819 * 2820 * Get requested flow control status from PHY capability. 2821 * If autoneg is true, then ethtool will send the ETHTOOL_GSET ioctl which 2822 * is handled by ice_get_link_ksettings. ice_get_link_ksettings will report 2823 * the negotiated Rx/Tx pause via lp_advertising. 2824 */ 2825 static void 2826 ice_get_pauseparam(struct net_device *netdev, struct ethtool_pauseparam *pause) 2827 { 2828 struct ice_netdev_priv *np = netdev_priv(netdev); 2829 struct ice_port_info *pi = np->vsi->port_info; 2830 struct ice_aqc_get_phy_caps_data *pcaps; 2831 struct ice_dcbx_cfg *dcbx_cfg; 2832 enum ice_status status; 2833 2834 /* Initialize pause params */ 2835 pause->rx_pause = 0; 2836 pause->tx_pause = 0; 2837 2838 dcbx_cfg = &pi->local_dcbx_cfg; 2839 2840 pcaps = kzalloc(sizeof(*pcaps), GFP_KERNEL); 2841 if (!pcaps) 2842 return; 2843 2844 /* Get current PHY config */ 2845 status = ice_aq_get_phy_caps(pi, false, ICE_AQC_REPORT_SW_CFG, pcaps, 2846 NULL); 2847 if (status) 2848 goto out; 2849 2850 pause->autoneg = ((pcaps->caps & ICE_AQC_PHY_AN_MODE) ? 2851 AUTONEG_ENABLE : AUTONEG_DISABLE); 2852 2853 if (dcbx_cfg->pfc.pfcena) 2854 /* PFC enabled so report LFC as off */ 2855 goto out; 2856 2857 if (pcaps->caps & ICE_AQC_PHY_EN_TX_LINK_PAUSE) 2858 pause->tx_pause = 1; 2859 if (pcaps->caps & ICE_AQC_PHY_EN_RX_LINK_PAUSE) 2860 pause->rx_pause = 1; 2861 2862 out: 2863 kfree(pcaps); 2864 } 2865 2866 /** 2867 * ice_set_pauseparam - Set Flow Control parameter 2868 * @netdev: network interface device structure 2869 * @pause: return Tx/Rx flow control status 2870 */ 2871 static int 2872 ice_set_pauseparam(struct net_device *netdev, struct ethtool_pauseparam *pause) 2873 { 2874 struct ice_netdev_priv *np = netdev_priv(netdev); 2875 struct ice_aqc_get_phy_caps_data *pcaps; 2876 struct ice_link_status *hw_link_info; 2877 struct ice_pf *pf = np->vsi->back; 2878 struct ice_dcbx_cfg *dcbx_cfg; 2879 struct ice_vsi *vsi = np->vsi; 2880 struct ice_hw *hw = &pf->hw; 2881 struct ice_port_info *pi; 2882 enum ice_status status; 2883 u8 aq_failures; 2884 bool link_up; 2885 int err = 0; 2886 u32 is_an; 2887 2888 pi = vsi->port_info; 2889 hw_link_info = &pi->phy.link_info; 2890 dcbx_cfg = &pi->local_dcbx_cfg; 2891 link_up = hw_link_info->link_info & ICE_AQ_LINK_UP; 2892 2893 /* Changing the port's flow control is not supported if this isn't the 2894 * PF VSI 2895 */ 2896 if (vsi->type != ICE_VSI_PF) { 2897 netdev_info(netdev, "Changing flow control parameters only supported for PF VSI\n"); 2898 return -EOPNOTSUPP; 2899 } 2900 2901 /* Get pause param reports configured and negotiated flow control pause 2902 * when ETHTOOL_GLINKSETTINGS is defined. Since ETHTOOL_GLINKSETTINGS is 2903 * defined get pause param pause->autoneg reports SW configured setting, 2904 * so compare pause->autoneg with SW configured to prevent the user from 2905 * using set pause param to chance autoneg. 2906 */ 2907 pcaps = kzalloc(sizeof(*pcaps), GFP_KERNEL); 2908 if (!pcaps) 2909 return -ENOMEM; 2910 2911 /* Get current PHY config */ 2912 status = ice_aq_get_phy_caps(pi, false, ICE_AQC_REPORT_SW_CFG, pcaps, 2913 NULL); 2914 if (status) { 2915 kfree(pcaps); 2916 return -EIO; 2917 } 2918 2919 is_an = ((pcaps->caps & ICE_AQC_PHY_AN_MODE) ? 2920 AUTONEG_ENABLE : AUTONEG_DISABLE); 2921 2922 kfree(pcaps); 2923 2924 if (pause->autoneg != is_an) { 2925 netdev_info(netdev, "To change autoneg please use: ethtool -s <dev> autoneg <on|off>\n"); 2926 return -EOPNOTSUPP; 2927 } 2928 2929 /* If we have link and don't have autoneg */ 2930 if (!test_bit(__ICE_DOWN, pf->state) && 2931 !(hw_link_info->an_info & ICE_AQ_AN_COMPLETED)) { 2932 /* Send message that it might not necessarily work*/ 2933 netdev_info(netdev, "Autoneg did not complete so changing settings may not result in an actual change.\n"); 2934 } 2935 2936 if (dcbx_cfg->pfc.pfcena) { 2937 netdev_info(netdev, "Priority flow control enabled. Cannot set link flow control.\n"); 2938 return -EOPNOTSUPP; 2939 } 2940 if (pause->rx_pause && pause->tx_pause) 2941 pi->fc.req_mode = ICE_FC_FULL; 2942 else if (pause->rx_pause && !pause->tx_pause) 2943 pi->fc.req_mode = ICE_FC_RX_PAUSE; 2944 else if (!pause->rx_pause && pause->tx_pause) 2945 pi->fc.req_mode = ICE_FC_TX_PAUSE; 2946 else if (!pause->rx_pause && !pause->tx_pause) 2947 pi->fc.req_mode = ICE_FC_NONE; 2948 else 2949 return -EINVAL; 2950 2951 /* Set the FC mode and only restart AN if link is up */ 2952 status = ice_set_fc(pi, &aq_failures, link_up); 2953 2954 if (aq_failures & ICE_SET_FC_AQ_FAIL_GET) { 2955 netdev_info(netdev, "Set fc failed on the get_phy_capabilities call with err %d aq_err %d\n", 2956 status, hw->adminq.sq_last_status); 2957 err = -EAGAIN; 2958 } else if (aq_failures & ICE_SET_FC_AQ_FAIL_SET) { 2959 netdev_info(netdev, "Set fc failed on the set_phy_config call with err %d aq_err %d\n", 2960 status, hw->adminq.sq_last_status); 2961 err = -EAGAIN; 2962 } else if (aq_failures & ICE_SET_FC_AQ_FAIL_UPDATE) { 2963 netdev_info(netdev, "Set fc failed on the get_link_info call with err %d aq_err %d\n", 2964 status, hw->adminq.sq_last_status); 2965 err = -EAGAIN; 2966 } 2967 2968 if (!test_bit(__ICE_DOWN, pf->state)) { 2969 /* Give it a little more time to try to come back. If still 2970 * down, restart autoneg link or reinitialize the interface. 2971 */ 2972 msleep(75); 2973 if (!test_bit(__ICE_DOWN, pf->state)) 2974 return ice_nway_reset(netdev); 2975 2976 ice_down(vsi); 2977 ice_up(vsi); 2978 } 2979 2980 return err; 2981 } 2982 2983 /** 2984 * ice_get_rxfh_key_size - get the RSS hash key size 2985 * @netdev: network interface device structure 2986 * 2987 * Returns the table size. 2988 */ 2989 static u32 ice_get_rxfh_key_size(struct net_device __always_unused *netdev) 2990 { 2991 return ICE_VSIQF_HKEY_ARRAY_SIZE; 2992 } 2993 2994 /** 2995 * ice_get_rxfh_indir_size - get the Rx flow hash indirection table size 2996 * @netdev: network interface device structure 2997 * 2998 * Returns the table size. 2999 */ 3000 static u32 ice_get_rxfh_indir_size(struct net_device *netdev) 3001 { 3002 struct ice_netdev_priv *np = netdev_priv(netdev); 3003 3004 return np->vsi->rss_table_size; 3005 } 3006 3007 /** 3008 * ice_get_rxfh - get the Rx flow hash indirection table 3009 * @netdev: network interface device structure 3010 * @indir: indirection table 3011 * @key: hash key 3012 * @hfunc: hash function 3013 * 3014 * Reads the indirection table directly from the hardware. 3015 */ 3016 static int 3017 ice_get_rxfh(struct net_device *netdev, u32 *indir, u8 *key, u8 *hfunc) 3018 { 3019 struct ice_netdev_priv *np = netdev_priv(netdev); 3020 struct ice_vsi *vsi = np->vsi; 3021 struct ice_pf *pf = vsi->back; 3022 int ret = 0, i; 3023 u8 *lut; 3024 3025 if (hfunc) 3026 *hfunc = ETH_RSS_HASH_TOP; 3027 3028 if (!indir) 3029 return 0; 3030 3031 if (!test_bit(ICE_FLAG_RSS_ENA, pf->flags)) { 3032 /* RSS not supported return error here */ 3033 netdev_warn(netdev, "RSS is not configured on this VSI!\n"); 3034 return -EIO; 3035 } 3036 3037 lut = kzalloc(vsi->rss_table_size, GFP_KERNEL); 3038 if (!lut) 3039 return -ENOMEM; 3040 3041 if (ice_get_rss(vsi, key, lut, vsi->rss_table_size)) { 3042 ret = -EIO; 3043 goto out; 3044 } 3045 3046 for (i = 0; i < vsi->rss_table_size; i++) 3047 indir[i] = (u32)(lut[i]); 3048 3049 out: 3050 kfree(lut); 3051 return ret; 3052 } 3053 3054 /** 3055 * ice_set_rxfh - set the Rx flow hash indirection table 3056 * @netdev: network interface device structure 3057 * @indir: indirection table 3058 * @key: hash key 3059 * @hfunc: hash function 3060 * 3061 * Returns -EINVAL if the table specifies an invalid queue ID, otherwise 3062 * returns 0 after programming the table. 3063 */ 3064 static int 3065 ice_set_rxfh(struct net_device *netdev, const u32 *indir, const u8 *key, 3066 const u8 hfunc) 3067 { 3068 struct ice_netdev_priv *np = netdev_priv(netdev); 3069 struct ice_vsi *vsi = np->vsi; 3070 struct ice_pf *pf = vsi->back; 3071 struct device *dev; 3072 u8 *seed = NULL; 3073 3074 dev = ice_pf_to_dev(pf); 3075 if (hfunc != ETH_RSS_HASH_NO_CHANGE && hfunc != ETH_RSS_HASH_TOP) 3076 return -EOPNOTSUPP; 3077 3078 if (!test_bit(ICE_FLAG_RSS_ENA, pf->flags)) { 3079 /* RSS not supported return error here */ 3080 netdev_warn(netdev, "RSS is not configured on this VSI!\n"); 3081 return -EIO; 3082 } 3083 3084 if (key) { 3085 if (!vsi->rss_hkey_user) { 3086 vsi->rss_hkey_user = 3087 devm_kzalloc(dev, ICE_VSIQF_HKEY_ARRAY_SIZE, 3088 GFP_KERNEL); 3089 if (!vsi->rss_hkey_user) 3090 return -ENOMEM; 3091 } 3092 memcpy(vsi->rss_hkey_user, key, ICE_VSIQF_HKEY_ARRAY_SIZE); 3093 seed = vsi->rss_hkey_user; 3094 } 3095 3096 if (!vsi->rss_lut_user) { 3097 vsi->rss_lut_user = devm_kzalloc(dev, vsi->rss_table_size, 3098 GFP_KERNEL); 3099 if (!vsi->rss_lut_user) 3100 return -ENOMEM; 3101 } 3102 3103 /* Each 32 bits pointed by 'indir' is stored with a lut entry */ 3104 if (indir) { 3105 int i; 3106 3107 for (i = 0; i < vsi->rss_table_size; i++) 3108 vsi->rss_lut_user[i] = (u8)(indir[i]); 3109 } else { 3110 ice_fill_rss_lut(vsi->rss_lut_user, vsi->rss_table_size, 3111 vsi->rss_size); 3112 } 3113 3114 if (ice_set_rss(vsi, seed, vsi->rss_lut_user, vsi->rss_table_size)) 3115 return -EIO; 3116 3117 return 0; 3118 } 3119 3120 /** 3121 * ice_get_max_txq - return the maximum number of Tx queues for in a PF 3122 * @pf: PF structure 3123 */ 3124 static int ice_get_max_txq(struct ice_pf *pf) 3125 { 3126 return min_t(int, num_online_cpus(), 3127 pf->hw.func_caps.common_cap.num_txq); 3128 } 3129 3130 /** 3131 * ice_get_max_rxq - return the maximum number of Rx queues for in a PF 3132 * @pf: PF structure 3133 */ 3134 static int ice_get_max_rxq(struct ice_pf *pf) 3135 { 3136 return min_t(int, num_online_cpus(), 3137 pf->hw.func_caps.common_cap.num_rxq); 3138 } 3139 3140 /** 3141 * ice_get_combined_cnt - return the current number of combined channels 3142 * @vsi: PF VSI pointer 3143 * 3144 * Go through all queue vectors and count ones that have both Rx and Tx ring 3145 * attached 3146 */ 3147 static u32 ice_get_combined_cnt(struct ice_vsi *vsi) 3148 { 3149 u32 combined = 0; 3150 int q_idx; 3151 3152 ice_for_each_q_vector(vsi, q_idx) { 3153 struct ice_q_vector *q_vector = vsi->q_vectors[q_idx]; 3154 3155 if (q_vector->rx.ring && q_vector->tx.ring) 3156 combined++; 3157 } 3158 3159 return combined; 3160 } 3161 3162 /** 3163 * ice_get_channels - get the current and max supported channels 3164 * @dev: network interface device structure 3165 * @ch: ethtool channel data structure 3166 */ 3167 static void 3168 ice_get_channels(struct net_device *dev, struct ethtool_channels *ch) 3169 { 3170 struct ice_netdev_priv *np = netdev_priv(dev); 3171 struct ice_vsi *vsi = np->vsi; 3172 struct ice_pf *pf = vsi->back; 3173 3174 /* check to see if VSI is active */ 3175 if (test_bit(__ICE_DOWN, vsi->state)) 3176 return; 3177 3178 /* report maximum channels */ 3179 ch->max_rx = ice_get_max_rxq(pf); 3180 ch->max_tx = ice_get_max_txq(pf); 3181 ch->max_combined = min_t(int, ch->max_rx, ch->max_tx); 3182 3183 /* report current channels */ 3184 ch->combined_count = ice_get_combined_cnt(vsi); 3185 ch->rx_count = vsi->num_rxq - ch->combined_count; 3186 ch->tx_count = vsi->num_txq - ch->combined_count; 3187 } 3188 3189 /** 3190 * ice_vsi_set_dflt_rss_lut - set default RSS LUT with requested RSS size 3191 * @vsi: VSI to reconfigure RSS LUT on 3192 * @req_rss_size: requested range of queue numbers for hashing 3193 * 3194 * Set the VSI's RSS parameters, configure the RSS LUT based on these. 3195 */ 3196 static int ice_vsi_set_dflt_rss_lut(struct ice_vsi *vsi, int req_rss_size) 3197 { 3198 struct ice_pf *pf = vsi->back; 3199 enum ice_status status; 3200 struct device *dev; 3201 struct ice_hw *hw; 3202 int err = 0; 3203 u8 *lut; 3204 3205 dev = ice_pf_to_dev(pf); 3206 hw = &pf->hw; 3207 3208 if (!req_rss_size) 3209 return -EINVAL; 3210 3211 lut = kzalloc(vsi->rss_table_size, GFP_KERNEL); 3212 if (!lut) 3213 return -ENOMEM; 3214 3215 /* set RSS LUT parameters */ 3216 if (!test_bit(ICE_FLAG_RSS_ENA, pf->flags)) { 3217 vsi->rss_size = 1; 3218 } else { 3219 struct ice_hw_common_caps *caps = &hw->func_caps.common_cap; 3220 3221 vsi->rss_size = min_t(int, req_rss_size, 3222 BIT(caps->rss_table_entry_width)); 3223 } 3224 3225 /* create/set RSS LUT */ 3226 ice_fill_rss_lut(lut, vsi->rss_table_size, vsi->rss_size); 3227 status = ice_aq_set_rss_lut(hw, vsi->idx, vsi->rss_lut_type, lut, 3228 vsi->rss_table_size); 3229 if (status) { 3230 dev_err(dev, "Cannot set RSS lut, err %d aq_err %d\n", 3231 status, hw->adminq.rq_last_status); 3232 err = -EIO; 3233 } 3234 3235 kfree(lut); 3236 return err; 3237 } 3238 3239 /** 3240 * ice_set_channels - set the number channels 3241 * @dev: network interface device structure 3242 * @ch: ethtool channel data structure 3243 */ 3244 static int ice_set_channels(struct net_device *dev, struct ethtool_channels *ch) 3245 { 3246 struct ice_netdev_priv *np = netdev_priv(dev); 3247 struct ice_vsi *vsi = np->vsi; 3248 struct ice_pf *pf = vsi->back; 3249 int new_rx = 0, new_tx = 0; 3250 u32 curr_combined; 3251 3252 /* do not support changing channels in Safe Mode */ 3253 if (ice_is_safe_mode(pf)) { 3254 netdev_err(dev, "Changing channel in Safe Mode is not supported\n"); 3255 return -EOPNOTSUPP; 3256 } 3257 /* do not support changing other_count */ 3258 if (ch->other_count) 3259 return -EINVAL; 3260 3261 curr_combined = ice_get_combined_cnt(vsi); 3262 3263 /* these checks are for cases where user didn't specify a particular 3264 * value on cmd line but we get non-zero value anyway via 3265 * get_channels(); look at ethtool.c in ethtool repository (the user 3266 * space part), particularly, do_schannels() routine 3267 */ 3268 if (ch->rx_count == vsi->num_rxq - curr_combined) 3269 ch->rx_count = 0; 3270 if (ch->tx_count == vsi->num_txq - curr_combined) 3271 ch->tx_count = 0; 3272 if (ch->combined_count == curr_combined) 3273 ch->combined_count = 0; 3274 3275 if (!(ch->combined_count || (ch->rx_count && ch->tx_count))) { 3276 netdev_err(dev, "Please specify at least 1 Rx and 1 Tx channel\n"); 3277 return -EINVAL; 3278 } 3279 3280 new_rx = ch->combined_count + ch->rx_count; 3281 new_tx = ch->combined_count + ch->tx_count; 3282 3283 if (new_rx > ice_get_max_rxq(pf)) { 3284 netdev_err(dev, "Maximum allowed Rx channels is %d\n", 3285 ice_get_max_rxq(pf)); 3286 return -EINVAL; 3287 } 3288 if (new_tx > ice_get_max_txq(pf)) { 3289 netdev_err(dev, "Maximum allowed Tx channels is %d\n", 3290 ice_get_max_txq(pf)); 3291 return -EINVAL; 3292 } 3293 3294 ice_vsi_recfg_qs(vsi, new_rx, new_tx); 3295 3296 if (new_rx && !netif_is_rxfh_configured(dev)) 3297 return ice_vsi_set_dflt_rss_lut(vsi, new_rx); 3298 3299 return 0; 3300 } 3301 3302 enum ice_container_type { 3303 ICE_RX_CONTAINER, 3304 ICE_TX_CONTAINER, 3305 }; 3306 3307 /** 3308 * ice_get_rc_coalesce - get ITR values for specific ring container 3309 * @ec: ethtool structure to fill with driver's coalesce settings 3310 * @c_type: container type, Rx or Tx 3311 * @rc: ring container that the ITR values will come from 3312 * 3313 * Query the device for ice_ring_container specific ITR values. This is 3314 * done per ice_ring_container because each q_vector can have 1 or more rings 3315 * and all of said ring(s) will have the same ITR values. 3316 * 3317 * Returns 0 on success, negative otherwise. 3318 */ 3319 static int 3320 ice_get_rc_coalesce(struct ethtool_coalesce *ec, enum ice_container_type c_type, 3321 struct ice_ring_container *rc) 3322 { 3323 struct ice_pf *pf; 3324 3325 if (!rc->ring) 3326 return -EINVAL; 3327 3328 pf = rc->ring->vsi->back; 3329 3330 switch (c_type) { 3331 case ICE_RX_CONTAINER: 3332 ec->use_adaptive_rx_coalesce = ITR_IS_DYNAMIC(rc->itr_setting); 3333 ec->rx_coalesce_usecs = rc->itr_setting & ~ICE_ITR_DYNAMIC; 3334 ec->rx_coalesce_usecs_high = rc->ring->q_vector->intrl; 3335 break; 3336 case ICE_TX_CONTAINER: 3337 ec->use_adaptive_tx_coalesce = ITR_IS_DYNAMIC(rc->itr_setting); 3338 ec->tx_coalesce_usecs = rc->itr_setting & ~ICE_ITR_DYNAMIC; 3339 break; 3340 default: 3341 dev_dbg(ice_pf_to_dev(pf), "Invalid c_type %d\n", c_type); 3342 return -EINVAL; 3343 } 3344 3345 return 0; 3346 } 3347 3348 /** 3349 * ice_get_q_coalesce - get a queue's ITR/INTRL (coalesce) settings 3350 * @vsi: VSI associated to the queue for getting ITR/INTRL (coalesce) settings 3351 * @ec: coalesce settings to program the device with 3352 * @q_num: update ITR/INTRL (coalesce) settings for this queue number/index 3353 * 3354 * Return 0 on success, and negative under the following conditions: 3355 * 1. Getting Tx or Rx ITR/INTRL (coalesce) settings failed. 3356 * 2. The q_num passed in is not a valid number/index for Tx and Rx rings. 3357 */ 3358 static int 3359 ice_get_q_coalesce(struct ice_vsi *vsi, struct ethtool_coalesce *ec, int q_num) 3360 { 3361 if (q_num < vsi->num_rxq && q_num < vsi->num_txq) { 3362 if (ice_get_rc_coalesce(ec, ICE_RX_CONTAINER, 3363 &vsi->rx_rings[q_num]->q_vector->rx)) 3364 return -EINVAL; 3365 if (ice_get_rc_coalesce(ec, ICE_TX_CONTAINER, 3366 &vsi->tx_rings[q_num]->q_vector->tx)) 3367 return -EINVAL; 3368 } else if (q_num < vsi->num_rxq) { 3369 if (ice_get_rc_coalesce(ec, ICE_RX_CONTAINER, 3370 &vsi->rx_rings[q_num]->q_vector->rx)) 3371 return -EINVAL; 3372 } else if (q_num < vsi->num_txq) { 3373 if (ice_get_rc_coalesce(ec, ICE_TX_CONTAINER, 3374 &vsi->tx_rings[q_num]->q_vector->tx)) 3375 return -EINVAL; 3376 } else { 3377 return -EINVAL; 3378 } 3379 3380 return 0; 3381 } 3382 3383 /** 3384 * __ice_get_coalesce - get ITR/INTRL values for the device 3385 * @netdev: pointer to the netdev associated with this query 3386 * @ec: ethtool structure to fill with driver's coalesce settings 3387 * @q_num: queue number to get the coalesce settings for 3388 * 3389 * If the caller passes in a negative q_num then we return coalesce settings 3390 * based on queue number 0, else use the actual q_num passed in. 3391 */ 3392 static int 3393 __ice_get_coalesce(struct net_device *netdev, struct ethtool_coalesce *ec, 3394 int q_num) 3395 { 3396 struct ice_netdev_priv *np = netdev_priv(netdev); 3397 struct ice_vsi *vsi = np->vsi; 3398 3399 if (q_num < 0) 3400 q_num = 0; 3401 3402 if (ice_get_q_coalesce(vsi, ec, q_num)) 3403 return -EINVAL; 3404 3405 return 0; 3406 } 3407 3408 static int 3409 ice_get_coalesce(struct net_device *netdev, struct ethtool_coalesce *ec) 3410 { 3411 return __ice_get_coalesce(netdev, ec, -1); 3412 } 3413 3414 static int 3415 ice_get_per_q_coalesce(struct net_device *netdev, u32 q_num, 3416 struct ethtool_coalesce *ec) 3417 { 3418 return __ice_get_coalesce(netdev, ec, q_num); 3419 } 3420 3421 /** 3422 * ice_set_rc_coalesce - set ITR values for specific ring container 3423 * @c_type: container type, Rx or Tx 3424 * @ec: ethtool structure from user to update ITR settings 3425 * @rc: ring container that the ITR values will come from 3426 * @vsi: VSI associated to the ring container 3427 * 3428 * Set specific ITR values. This is done per ice_ring_container because each 3429 * q_vector can have 1 or more rings and all of said ring(s) will have the same 3430 * ITR values. 3431 * 3432 * Returns 0 on success, negative otherwise. 3433 */ 3434 static int 3435 ice_set_rc_coalesce(enum ice_container_type c_type, struct ethtool_coalesce *ec, 3436 struct ice_ring_container *rc, struct ice_vsi *vsi) 3437 { 3438 const char *c_type_str = (c_type == ICE_RX_CONTAINER) ? "rx" : "tx"; 3439 u32 use_adaptive_coalesce, coalesce_usecs; 3440 struct ice_pf *pf = vsi->back; 3441 u16 itr_setting; 3442 3443 if (!rc->ring) 3444 return -EINVAL; 3445 3446 switch (c_type) { 3447 case ICE_RX_CONTAINER: 3448 if (ec->rx_coalesce_usecs_high > ICE_MAX_INTRL || 3449 (ec->rx_coalesce_usecs_high && 3450 ec->rx_coalesce_usecs_high < pf->hw.intrl_gran)) { 3451 netdev_info(vsi->netdev, "Invalid value, %s-usecs-high valid values are 0 (disabled), %d-%d\n", 3452 c_type_str, pf->hw.intrl_gran, 3453 ICE_MAX_INTRL); 3454 return -EINVAL; 3455 } 3456 if (ec->rx_coalesce_usecs_high != rc->ring->q_vector->intrl) { 3457 rc->ring->q_vector->intrl = ec->rx_coalesce_usecs_high; 3458 wr32(&pf->hw, GLINT_RATE(rc->ring->q_vector->reg_idx), 3459 ice_intrl_usec_to_reg(ec->rx_coalesce_usecs_high, 3460 pf->hw.intrl_gran)); 3461 } 3462 3463 use_adaptive_coalesce = ec->use_adaptive_rx_coalesce; 3464 coalesce_usecs = ec->rx_coalesce_usecs; 3465 3466 break; 3467 case ICE_TX_CONTAINER: 3468 use_adaptive_coalesce = ec->use_adaptive_tx_coalesce; 3469 coalesce_usecs = ec->tx_coalesce_usecs; 3470 3471 break; 3472 default: 3473 dev_dbg(ice_pf_to_dev(pf), "Invalid container type %d\n", 3474 c_type); 3475 return -EINVAL; 3476 } 3477 3478 itr_setting = rc->itr_setting & ~ICE_ITR_DYNAMIC; 3479 if (coalesce_usecs != itr_setting && use_adaptive_coalesce) { 3480 netdev_info(vsi->netdev, "%s interrupt throttling cannot be changed if adaptive-%s is enabled\n", 3481 c_type_str, c_type_str); 3482 return -EINVAL; 3483 } 3484 3485 if (coalesce_usecs > ICE_ITR_MAX) { 3486 netdev_info(vsi->netdev, "Invalid value, %s-usecs range is 0-%d\n", 3487 c_type_str, ICE_ITR_MAX); 3488 return -EINVAL; 3489 } 3490 3491 if (use_adaptive_coalesce) { 3492 rc->itr_setting |= ICE_ITR_DYNAMIC; 3493 } else { 3494 /* save the user set usecs */ 3495 rc->itr_setting = coalesce_usecs; 3496 /* device ITR granularity is in 2 usec increments */ 3497 rc->target_itr = ITR_REG_ALIGN(rc->itr_setting); 3498 } 3499 3500 return 0; 3501 } 3502 3503 /** 3504 * ice_set_q_coalesce - set a queue's ITR/INTRL (coalesce) settings 3505 * @vsi: VSI associated to the queue that need updating 3506 * @ec: coalesce settings to program the device with 3507 * @q_num: update ITR/INTRL (coalesce) settings for this queue number/index 3508 * 3509 * Return 0 on success, and negative under the following conditions: 3510 * 1. Setting Tx or Rx ITR/INTRL (coalesce) settings failed. 3511 * 2. The q_num passed in is not a valid number/index for Tx and Rx rings. 3512 */ 3513 static int 3514 ice_set_q_coalesce(struct ice_vsi *vsi, struct ethtool_coalesce *ec, int q_num) 3515 { 3516 if (q_num < vsi->num_rxq && q_num < vsi->num_txq) { 3517 if (ice_set_rc_coalesce(ICE_RX_CONTAINER, ec, 3518 &vsi->rx_rings[q_num]->q_vector->rx, 3519 vsi)) 3520 return -EINVAL; 3521 3522 if (ice_set_rc_coalesce(ICE_TX_CONTAINER, ec, 3523 &vsi->tx_rings[q_num]->q_vector->tx, 3524 vsi)) 3525 return -EINVAL; 3526 } else if (q_num < vsi->num_rxq) { 3527 if (ice_set_rc_coalesce(ICE_RX_CONTAINER, ec, 3528 &vsi->rx_rings[q_num]->q_vector->rx, 3529 vsi)) 3530 return -EINVAL; 3531 } else if (q_num < vsi->num_txq) { 3532 if (ice_set_rc_coalesce(ICE_TX_CONTAINER, ec, 3533 &vsi->tx_rings[q_num]->q_vector->tx, 3534 vsi)) 3535 return -EINVAL; 3536 } else { 3537 return -EINVAL; 3538 } 3539 3540 return 0; 3541 } 3542 3543 /** 3544 * ice_print_if_odd_usecs - print message if user tries to set odd [tx|rx]-usecs 3545 * @netdev: netdev used for print 3546 * @itr_setting: previous user setting 3547 * @use_adaptive_coalesce: if adaptive coalesce is enabled or being enabled 3548 * @coalesce_usecs: requested value of [tx|rx]-usecs 3549 * @c_type_str: either "rx" or "tx" to match user set field of [tx|rx]-usecs 3550 */ 3551 static void 3552 ice_print_if_odd_usecs(struct net_device *netdev, u16 itr_setting, 3553 u32 use_adaptive_coalesce, u32 coalesce_usecs, 3554 const char *c_type_str) 3555 { 3556 if (use_adaptive_coalesce) 3557 return; 3558 3559 itr_setting = ITR_TO_REG(itr_setting); 3560 3561 if (itr_setting != coalesce_usecs && (coalesce_usecs % 2)) 3562 netdev_info(netdev, "User set %s-usecs to %d, device only supports even values. Rounding down and attempting to set %s-usecs to %d\n", 3563 c_type_str, coalesce_usecs, c_type_str, 3564 ITR_REG_ALIGN(coalesce_usecs)); 3565 } 3566 3567 /** 3568 * __ice_set_coalesce - set ITR/INTRL values for the device 3569 * @netdev: pointer to the netdev associated with this query 3570 * @ec: ethtool structure to fill with driver's coalesce settings 3571 * @q_num: queue number to get the coalesce settings for 3572 * 3573 * If the caller passes in a negative q_num then we set the coalesce settings 3574 * for all Tx/Rx queues, else use the actual q_num passed in. 3575 */ 3576 static int 3577 __ice_set_coalesce(struct net_device *netdev, struct ethtool_coalesce *ec, 3578 int q_num) 3579 { 3580 struct ice_netdev_priv *np = netdev_priv(netdev); 3581 struct ice_vsi *vsi = np->vsi; 3582 3583 if (q_num < 0) { 3584 struct ice_q_vector *q_vector = vsi->q_vectors[0]; 3585 int v_idx; 3586 3587 if (q_vector) { 3588 ice_print_if_odd_usecs(netdev, q_vector->rx.itr_setting, 3589 ec->use_adaptive_rx_coalesce, 3590 ec->rx_coalesce_usecs, "rx"); 3591 3592 ice_print_if_odd_usecs(netdev, q_vector->tx.itr_setting, 3593 ec->use_adaptive_tx_coalesce, 3594 ec->tx_coalesce_usecs, "tx"); 3595 } 3596 3597 ice_for_each_q_vector(vsi, v_idx) { 3598 /* In some cases if DCB is configured the num_[rx|tx]q 3599 * can be less than vsi->num_q_vectors. This check 3600 * accounts for that so we don't report a false failure 3601 */ 3602 if (v_idx >= vsi->num_rxq && v_idx >= vsi->num_txq) 3603 goto set_complete; 3604 3605 if (ice_set_q_coalesce(vsi, ec, v_idx)) 3606 return -EINVAL; 3607 } 3608 goto set_complete; 3609 } 3610 3611 if (ice_set_q_coalesce(vsi, ec, q_num)) 3612 return -EINVAL; 3613 3614 set_complete: 3615 3616 return 0; 3617 } 3618 3619 static int 3620 ice_set_coalesce(struct net_device *netdev, struct ethtool_coalesce *ec) 3621 { 3622 return __ice_set_coalesce(netdev, ec, -1); 3623 } 3624 3625 static int 3626 ice_set_per_q_coalesce(struct net_device *netdev, u32 q_num, 3627 struct ethtool_coalesce *ec) 3628 { 3629 return __ice_set_coalesce(netdev, ec, q_num); 3630 } 3631 3632 #define ICE_I2C_EEPROM_DEV_ADDR 0xA0 3633 #define ICE_I2C_EEPROM_DEV_ADDR2 0xA2 3634 #define ICE_MODULE_TYPE_SFP 0x03 3635 #define ICE_MODULE_TYPE_QSFP_PLUS 0x0D 3636 #define ICE_MODULE_TYPE_QSFP28 0x11 3637 #define ICE_MODULE_SFF_ADDR_MODE 0x04 3638 #define ICE_MODULE_SFF_DIAG_CAPAB 0x40 3639 #define ICE_MODULE_REVISION_ADDR 0x01 3640 #define ICE_MODULE_SFF_8472_COMP 0x5E 3641 #define ICE_MODULE_SFF_8472_SWAP 0x5C 3642 #define ICE_MODULE_QSFP_MAX_LEN 640 3643 3644 /** 3645 * ice_get_module_info - get SFF module type and revision information 3646 * @netdev: network interface device structure 3647 * @modinfo: module EEPROM size and layout information structure 3648 */ 3649 static int 3650 ice_get_module_info(struct net_device *netdev, 3651 struct ethtool_modinfo *modinfo) 3652 { 3653 struct ice_netdev_priv *np = netdev_priv(netdev); 3654 struct ice_vsi *vsi = np->vsi; 3655 struct ice_pf *pf = vsi->back; 3656 struct ice_hw *hw = &pf->hw; 3657 enum ice_status status; 3658 u8 sff8472_comp = 0; 3659 u8 sff8472_swap = 0; 3660 u8 sff8636_rev = 0; 3661 u8 value = 0; 3662 3663 status = ice_aq_sff_eeprom(hw, 0, ICE_I2C_EEPROM_DEV_ADDR, 0x00, 0x00, 3664 0, &value, 1, 0, NULL); 3665 if (status) 3666 return -EIO; 3667 3668 switch (value) { 3669 case ICE_MODULE_TYPE_SFP: 3670 status = ice_aq_sff_eeprom(hw, 0, ICE_I2C_EEPROM_DEV_ADDR, 3671 ICE_MODULE_SFF_8472_COMP, 0x00, 0, 3672 &sff8472_comp, 1, 0, NULL); 3673 if (status) 3674 return -EIO; 3675 status = ice_aq_sff_eeprom(hw, 0, ICE_I2C_EEPROM_DEV_ADDR, 3676 ICE_MODULE_SFF_8472_SWAP, 0x00, 0, 3677 &sff8472_swap, 1, 0, NULL); 3678 if (status) 3679 return -EIO; 3680 3681 if (sff8472_swap & ICE_MODULE_SFF_ADDR_MODE) { 3682 modinfo->type = ETH_MODULE_SFF_8079; 3683 modinfo->eeprom_len = ETH_MODULE_SFF_8079_LEN; 3684 } else if (sff8472_comp && 3685 (sff8472_swap & ICE_MODULE_SFF_DIAG_CAPAB)) { 3686 modinfo->type = ETH_MODULE_SFF_8472; 3687 modinfo->eeprom_len = ETH_MODULE_SFF_8472_LEN; 3688 } else { 3689 modinfo->type = ETH_MODULE_SFF_8079; 3690 modinfo->eeprom_len = ETH_MODULE_SFF_8079_LEN; 3691 } 3692 break; 3693 case ICE_MODULE_TYPE_QSFP_PLUS: 3694 case ICE_MODULE_TYPE_QSFP28: 3695 status = ice_aq_sff_eeprom(hw, 0, ICE_I2C_EEPROM_DEV_ADDR, 3696 ICE_MODULE_REVISION_ADDR, 0x00, 0, 3697 &sff8636_rev, 1, 0, NULL); 3698 if (status) 3699 return -EIO; 3700 /* Check revision compliance */ 3701 if (sff8636_rev > 0x02) { 3702 /* Module is SFF-8636 compliant */ 3703 modinfo->type = ETH_MODULE_SFF_8636; 3704 modinfo->eeprom_len = ICE_MODULE_QSFP_MAX_LEN; 3705 } else { 3706 modinfo->type = ETH_MODULE_SFF_8436; 3707 modinfo->eeprom_len = ICE_MODULE_QSFP_MAX_LEN; 3708 } 3709 break; 3710 default: 3711 netdev_warn(netdev, "SFF Module Type not recognized.\n"); 3712 return -EINVAL; 3713 } 3714 return 0; 3715 } 3716 3717 /** 3718 * ice_get_module_eeprom - fill buffer with SFF EEPROM contents 3719 * @netdev: network interface device structure 3720 * @ee: EEPROM dump request structure 3721 * @data: buffer to be filled with EEPROM contents 3722 */ 3723 static int 3724 ice_get_module_eeprom(struct net_device *netdev, 3725 struct ethtool_eeprom *ee, u8 *data) 3726 { 3727 struct ice_netdev_priv *np = netdev_priv(netdev); 3728 u8 addr = ICE_I2C_EEPROM_DEV_ADDR; 3729 struct ice_vsi *vsi = np->vsi; 3730 struct ice_pf *pf = vsi->back; 3731 struct ice_hw *hw = &pf->hw; 3732 enum ice_status status; 3733 bool is_sfp = false; 3734 u16 offset = 0; 3735 u8 value = 0; 3736 u8 page = 0; 3737 int i; 3738 3739 status = ice_aq_sff_eeprom(hw, 0, addr, offset, page, 0, 3740 &value, 1, 0, NULL); 3741 if (status) 3742 return -EIO; 3743 3744 if (!ee || !ee->len || !data) 3745 return -EINVAL; 3746 3747 if (value == ICE_MODULE_TYPE_SFP) 3748 is_sfp = true; 3749 3750 for (i = 0; i < ee->len; i++) { 3751 offset = i + ee->offset; 3752 3753 /* Check if we need to access the other memory page */ 3754 if (is_sfp) { 3755 if (offset >= ETH_MODULE_SFF_8079_LEN) { 3756 offset -= ETH_MODULE_SFF_8079_LEN; 3757 addr = ICE_I2C_EEPROM_DEV_ADDR2; 3758 } 3759 } else { 3760 while (offset >= ETH_MODULE_SFF_8436_LEN) { 3761 /* Compute memory page number and offset. */ 3762 offset -= ETH_MODULE_SFF_8436_LEN / 2; 3763 page++; 3764 } 3765 } 3766 3767 status = ice_aq_sff_eeprom(hw, 0, addr, offset, page, !is_sfp, 3768 &value, 1, 0, NULL); 3769 if (status) 3770 value = 0; 3771 data[i] = value; 3772 } 3773 return 0; 3774 } 3775 3776 static const struct ethtool_ops ice_ethtool_ops = { 3777 .supported_coalesce_params = ETHTOOL_COALESCE_USECS | 3778 ETHTOOL_COALESCE_USE_ADAPTIVE | 3779 ETHTOOL_COALESCE_RX_USECS_HIGH, 3780 .get_link_ksettings = ice_get_link_ksettings, 3781 .set_link_ksettings = ice_set_link_ksettings, 3782 .get_drvinfo = ice_get_drvinfo, 3783 .get_regs_len = ice_get_regs_len, 3784 .get_regs = ice_get_regs, 3785 .get_msglevel = ice_get_msglevel, 3786 .set_msglevel = ice_set_msglevel, 3787 .self_test = ice_self_test, 3788 .get_link = ethtool_op_get_link, 3789 .get_eeprom_len = ice_get_eeprom_len, 3790 .get_eeprom = ice_get_eeprom, 3791 .get_coalesce = ice_get_coalesce, 3792 .set_coalesce = ice_set_coalesce, 3793 .get_strings = ice_get_strings, 3794 .set_phys_id = ice_set_phys_id, 3795 .get_ethtool_stats = ice_get_ethtool_stats, 3796 .get_priv_flags = ice_get_priv_flags, 3797 .set_priv_flags = ice_set_priv_flags, 3798 .get_sset_count = ice_get_sset_count, 3799 .get_rxnfc = ice_get_rxnfc, 3800 .set_rxnfc = ice_set_rxnfc, 3801 .get_ringparam = ice_get_ringparam, 3802 .set_ringparam = ice_set_ringparam, 3803 .nway_reset = ice_nway_reset, 3804 .get_pauseparam = ice_get_pauseparam, 3805 .set_pauseparam = ice_set_pauseparam, 3806 .get_rxfh_key_size = ice_get_rxfh_key_size, 3807 .get_rxfh_indir_size = ice_get_rxfh_indir_size, 3808 .get_rxfh = ice_get_rxfh, 3809 .set_rxfh = ice_set_rxfh, 3810 .get_channels = ice_get_channels, 3811 .set_channels = ice_set_channels, 3812 .get_ts_info = ethtool_op_get_ts_info, 3813 .get_per_queue_coalesce = ice_get_per_q_coalesce, 3814 .set_per_queue_coalesce = ice_set_per_q_coalesce, 3815 .get_fecparam = ice_get_fecparam, 3816 .set_fecparam = ice_set_fecparam, 3817 .get_module_info = ice_get_module_info, 3818 .get_module_eeprom = ice_get_module_eeprom, 3819 }; 3820 3821 static const struct ethtool_ops ice_ethtool_safe_mode_ops = { 3822 .get_link_ksettings = ice_get_link_ksettings, 3823 .set_link_ksettings = ice_set_link_ksettings, 3824 .get_drvinfo = ice_get_drvinfo, 3825 .get_regs_len = ice_get_regs_len, 3826 .get_regs = ice_get_regs, 3827 .get_msglevel = ice_get_msglevel, 3828 .set_msglevel = ice_set_msglevel, 3829 .get_link = ethtool_op_get_link, 3830 .get_eeprom_len = ice_get_eeprom_len, 3831 .get_eeprom = ice_get_eeprom, 3832 .get_strings = ice_get_strings, 3833 .get_ethtool_stats = ice_get_ethtool_stats, 3834 .get_sset_count = ice_get_sset_count, 3835 .get_ringparam = ice_get_ringparam, 3836 .set_ringparam = ice_set_ringparam, 3837 .nway_reset = ice_nway_reset, 3838 .get_channels = ice_get_channels, 3839 }; 3840 3841 /** 3842 * ice_set_ethtool_safe_mode_ops - setup safe mode ethtool ops 3843 * @netdev: network interface device structure 3844 */ 3845 void ice_set_ethtool_safe_mode_ops(struct net_device *netdev) 3846 { 3847 netdev->ethtool_ops = &ice_ethtool_safe_mode_ops; 3848 } 3849 3850 /** 3851 * ice_set_ethtool_ops - setup netdev ethtool ops 3852 * @netdev: network interface device structure 3853 * 3854 * setup netdev ethtool ops with ice specific ops 3855 */ 3856 void ice_set_ethtool_ops(struct net_device *netdev) 3857 { 3858 netdev->ethtool_ops = &ice_ethtool_ops; 3859 } 3860