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 u8 oem_ver, oem_patch, nvm_ver_hi, nvm_ver_lo; 171 struct ice_vsi *vsi = np->vsi; 172 struct ice_pf *pf = vsi->back; 173 struct ice_hw *hw = &pf->hw; 174 u16 oem_build; 175 176 strlcpy(drvinfo->driver, KBUILD_MODNAME, sizeof(drvinfo->driver)); 177 strlcpy(drvinfo->version, ice_drv_ver, sizeof(drvinfo->version)); 178 179 /* Display NVM version (from which the firmware version can be 180 * determined) which contains more pertinent information. 181 */ 182 ice_get_nvm_version(hw, &oem_ver, &oem_build, &oem_patch, 183 &nvm_ver_hi, &nvm_ver_lo); 184 snprintf(drvinfo->fw_version, sizeof(drvinfo->fw_version), 185 "%x.%02x 0x%x %d.%d.%d", nvm_ver_hi, nvm_ver_lo, 186 hw->nvm.eetrack, oem_ver, oem_build, oem_patch); 187 188 strlcpy(drvinfo->bus_info, pci_name(pf->pdev), 189 sizeof(drvinfo->bus_info)); 190 drvinfo->n_priv_flags = ICE_PRIV_FLAG_ARRAY_SIZE; 191 } 192 193 static int ice_get_regs_len(struct net_device __always_unused *netdev) 194 { 195 return sizeof(ice_regs_dump_list); 196 } 197 198 static void 199 ice_get_regs(struct net_device *netdev, struct ethtool_regs *regs, void *p) 200 { 201 struct ice_netdev_priv *np = netdev_priv(netdev); 202 struct ice_pf *pf = np->vsi->back; 203 struct ice_hw *hw = &pf->hw; 204 u32 *regs_buf = (u32 *)p; 205 int i; 206 207 regs->version = 1; 208 209 for (i = 0; i < ARRAY_SIZE(ice_regs_dump_list); ++i) 210 regs_buf[i] = rd32(hw, ice_regs_dump_list[i]); 211 } 212 213 static u32 ice_get_msglevel(struct net_device *netdev) 214 { 215 struct ice_netdev_priv *np = netdev_priv(netdev); 216 struct ice_pf *pf = np->vsi->back; 217 218 #ifndef CONFIG_DYNAMIC_DEBUG 219 if (pf->hw.debug_mask) 220 netdev_info(netdev, "hw debug_mask: 0x%llX\n", 221 pf->hw.debug_mask); 222 #endif /* !CONFIG_DYNAMIC_DEBUG */ 223 224 return pf->msg_enable; 225 } 226 227 static void ice_set_msglevel(struct net_device *netdev, u32 data) 228 { 229 struct ice_netdev_priv *np = netdev_priv(netdev); 230 struct ice_pf *pf = np->vsi->back; 231 232 #ifndef CONFIG_DYNAMIC_DEBUG 233 if (ICE_DBG_USER & data) 234 pf->hw.debug_mask = data; 235 else 236 pf->msg_enable = data; 237 #else 238 pf->msg_enable = data; 239 #endif /* !CONFIG_DYNAMIC_DEBUG */ 240 } 241 242 static int ice_get_eeprom_len(struct net_device *netdev) 243 { 244 struct ice_netdev_priv *np = netdev_priv(netdev); 245 struct ice_pf *pf = np->vsi->back; 246 247 return (int)(pf->hw.nvm.sr_words * sizeof(u16)); 248 } 249 250 static int 251 ice_get_eeprom(struct net_device *netdev, struct ethtool_eeprom *eeprom, 252 u8 *bytes) 253 { 254 struct ice_netdev_priv *np = netdev_priv(netdev); 255 u16 first_word, last_word, nwords; 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 u16 *buf; 263 264 dev = ice_pf_to_dev(pf); 265 266 eeprom->magic = hw->vendor_id | (hw->device_id << 16); 267 268 first_word = eeprom->offset >> 1; 269 last_word = (eeprom->offset + eeprom->len - 1) >> 1; 270 nwords = last_word - first_word + 1; 271 272 buf = devm_kcalloc(dev, nwords, sizeof(u16), GFP_KERNEL); 273 if (!buf) 274 return -ENOMEM; 275 276 status = ice_read_sr_buf(hw, first_word, &nwords, buf); 277 if (status) { 278 dev_err(dev, "ice_read_sr_buf failed, err %d aq_err %d\n", 279 status, hw->adminq.sq_last_status); 280 eeprom->len = sizeof(u16) * nwords; 281 ret = -EIO; 282 goto out; 283 } 284 285 memcpy(bytes, (u8 *)buf + (eeprom->offset & 1), eeprom->len); 286 out: 287 devm_kfree(dev, buf); 288 return ret; 289 } 290 291 /** 292 * ice_active_vfs - check if there are any active VFs 293 * @pf: board private structure 294 * 295 * Returns true if an active VF is found, otherwise returns false 296 */ 297 static bool ice_active_vfs(struct ice_pf *pf) 298 { 299 int i; 300 301 ice_for_each_vf(pf, i) { 302 struct ice_vf *vf = &pf->vf[i]; 303 304 if (test_bit(ICE_VF_STATE_ACTIVE, vf->vf_states)) 305 return true; 306 } 307 308 return false; 309 } 310 311 /** 312 * ice_link_test - perform a link test on a given net_device 313 * @netdev: network interface device structure 314 * 315 * This function performs one of the self-tests required by ethtool. 316 * Returns 0 on success, non-zero on failure. 317 */ 318 static u64 ice_link_test(struct net_device *netdev) 319 { 320 struct ice_netdev_priv *np = netdev_priv(netdev); 321 enum ice_status status; 322 bool link_up = false; 323 324 netdev_info(netdev, "link test\n"); 325 status = ice_get_link_status(np->vsi->port_info, &link_up); 326 if (status) { 327 netdev_err(netdev, "link query error, status = %d\n", status); 328 return 1; 329 } 330 331 if (!link_up) 332 return 2; 333 334 return 0; 335 } 336 337 /** 338 * ice_eeprom_test - perform an EEPROM test on a given net_device 339 * @netdev: network interface device structure 340 * 341 * This function performs one of the self-tests required by ethtool. 342 * Returns 0 on success, non-zero on failure. 343 */ 344 static u64 ice_eeprom_test(struct net_device *netdev) 345 { 346 struct ice_netdev_priv *np = netdev_priv(netdev); 347 struct ice_pf *pf = np->vsi->back; 348 349 netdev_info(netdev, "EEPROM test\n"); 350 return !!(ice_nvm_validate_checksum(&pf->hw)); 351 } 352 353 /** 354 * ice_reg_pattern_test 355 * @hw: pointer to the HW struct 356 * @reg: reg to be tested 357 * @mask: bits to be touched 358 */ 359 static int ice_reg_pattern_test(struct ice_hw *hw, u32 reg, u32 mask) 360 { 361 struct ice_pf *pf = (struct ice_pf *)hw->back; 362 struct device *dev = ice_pf_to_dev(pf); 363 static const u32 patterns[] = { 364 0x5A5A5A5A, 0xA5A5A5A5, 365 0x00000000, 0xFFFFFFFF 366 }; 367 u32 val, orig_val; 368 int i; 369 370 orig_val = rd32(hw, reg); 371 for (i = 0; i < ARRAY_SIZE(patterns); ++i) { 372 u32 pattern = patterns[i] & mask; 373 374 wr32(hw, reg, pattern); 375 val = rd32(hw, reg); 376 if (val == pattern) 377 continue; 378 dev_err(dev, "%s: reg pattern test failed - reg 0x%08x pat 0x%08x val 0x%08x\n" 379 , __func__, reg, pattern, val); 380 return 1; 381 } 382 383 wr32(hw, reg, orig_val); 384 val = rd32(hw, reg); 385 if (val != orig_val) { 386 dev_err(dev, "%s: reg restore test failed - reg 0x%08x orig 0x%08x val 0x%08x\n" 387 , __func__, reg, orig_val, val); 388 return 1; 389 } 390 391 return 0; 392 } 393 394 /** 395 * ice_reg_test - perform a register test on a given net_device 396 * @netdev: network interface device structure 397 * 398 * This function performs one of the self-tests required by ethtool. 399 * Returns 0 on success, non-zero on failure. 400 */ 401 static u64 ice_reg_test(struct net_device *netdev) 402 { 403 struct ice_netdev_priv *np = netdev_priv(netdev); 404 struct ice_hw *hw = np->vsi->port_info->hw; 405 u32 int_elements = hw->func_caps.common_cap.num_msix_vectors ? 406 hw->func_caps.common_cap.num_msix_vectors - 1 : 1; 407 struct ice_diag_reg_test_info { 408 u32 address; 409 u32 mask; 410 u32 elem_num; 411 u32 elem_size; 412 } ice_reg_list[] = { 413 {GLINT_ITR(0, 0), 0x00000fff, int_elements, 414 GLINT_ITR(0, 1) - GLINT_ITR(0, 0)}, 415 {GLINT_ITR(1, 0), 0x00000fff, int_elements, 416 GLINT_ITR(1, 1) - GLINT_ITR(1, 0)}, 417 {GLINT_ITR(0, 0), 0x00000fff, int_elements, 418 GLINT_ITR(2, 1) - GLINT_ITR(2, 0)}, 419 {GLINT_CTL, 0xffff0001, 1, 0} 420 }; 421 int i; 422 423 netdev_dbg(netdev, "Register test\n"); 424 for (i = 0; i < ARRAY_SIZE(ice_reg_list); ++i) { 425 u32 j; 426 427 for (j = 0; j < ice_reg_list[i].elem_num; ++j) { 428 u32 mask = ice_reg_list[i].mask; 429 u32 reg = ice_reg_list[i].address + 430 (j * ice_reg_list[i].elem_size); 431 432 /* bail on failure (non-zero return) */ 433 if (ice_reg_pattern_test(hw, reg, mask)) 434 return 1; 435 } 436 } 437 438 return 0; 439 } 440 441 /** 442 * ice_lbtest_prepare_rings - configure Tx/Rx test rings 443 * @vsi: pointer to the VSI structure 444 * 445 * Function configures rings of a VSI for loopback test without 446 * enabling interrupts or informing the kernel about new queues. 447 * 448 * Returns 0 on success, negative on failure. 449 */ 450 static int ice_lbtest_prepare_rings(struct ice_vsi *vsi) 451 { 452 int status; 453 454 status = ice_vsi_setup_tx_rings(vsi); 455 if (status) 456 goto err_setup_tx_ring; 457 458 status = ice_vsi_setup_rx_rings(vsi); 459 if (status) 460 goto err_setup_rx_ring; 461 462 status = ice_vsi_cfg(vsi); 463 if (status) 464 goto err_setup_rx_ring; 465 466 status = ice_vsi_start_all_rx_rings(vsi); 467 if (status) 468 goto err_start_rx_ring; 469 470 return status; 471 472 err_start_rx_ring: 473 ice_vsi_free_rx_rings(vsi); 474 err_setup_rx_ring: 475 ice_vsi_stop_lan_tx_rings(vsi, ICE_NO_RESET, 0); 476 err_setup_tx_ring: 477 ice_vsi_free_tx_rings(vsi); 478 479 return status; 480 } 481 482 /** 483 * ice_lbtest_disable_rings - disable Tx/Rx test rings after loopback test 484 * @vsi: pointer to the VSI structure 485 * 486 * Function stops and frees VSI rings after a loopback test. 487 * Returns 0 on success, negative on failure. 488 */ 489 static int ice_lbtest_disable_rings(struct ice_vsi *vsi) 490 { 491 int status; 492 493 status = ice_vsi_stop_lan_tx_rings(vsi, ICE_NO_RESET, 0); 494 if (status) 495 netdev_err(vsi->netdev, "Failed to stop Tx rings, VSI %d error %d\n", 496 vsi->vsi_num, status); 497 498 status = ice_vsi_stop_all_rx_rings(vsi); 499 if (status) 500 netdev_err(vsi->netdev, "Failed to stop Rx rings, VSI %d error %d\n", 501 vsi->vsi_num, status); 502 503 ice_vsi_free_tx_rings(vsi); 504 ice_vsi_free_rx_rings(vsi); 505 506 return status; 507 } 508 509 /** 510 * ice_lbtest_create_frame - create test packet 511 * @pf: pointer to the PF structure 512 * @ret_data: allocated frame buffer 513 * @size: size of the packet data 514 * 515 * Function allocates a frame with a test pattern on specific offsets. 516 * Returns 0 on success, non-zero on failure. 517 */ 518 static int ice_lbtest_create_frame(struct ice_pf *pf, u8 **ret_data, u16 size) 519 { 520 u8 *data; 521 522 if (!pf) 523 return -EINVAL; 524 525 data = devm_kzalloc(ice_pf_to_dev(pf), size, GFP_KERNEL); 526 if (!data) 527 return -ENOMEM; 528 529 /* Since the ethernet test frame should always be at least 530 * 64 bytes long, fill some octets in the payload with test data. 531 */ 532 memset(data, 0xFF, size); 533 data[32] = 0xDE; 534 data[42] = 0xAD; 535 data[44] = 0xBE; 536 data[46] = 0xEF; 537 538 *ret_data = data; 539 540 return 0; 541 } 542 543 /** 544 * ice_lbtest_check_frame - verify received loopback frame 545 * @frame: pointer to the raw packet data 546 * 547 * Function verifies received test frame with a pattern. 548 * Returns true if frame matches the pattern, false otherwise. 549 */ 550 static bool ice_lbtest_check_frame(u8 *frame) 551 { 552 /* Validate bytes of a frame under offsets chosen earlier */ 553 if (frame[32] == 0xDE && 554 frame[42] == 0xAD && 555 frame[44] == 0xBE && 556 frame[46] == 0xEF && 557 frame[48] == 0xFF) 558 return true; 559 560 return false; 561 } 562 563 /** 564 * ice_diag_send - send test frames to the test ring 565 * @tx_ring: pointer to the transmit ring 566 * @data: pointer to the raw packet data 567 * @size: size of the packet to send 568 * 569 * Function sends loopback packets on a test Tx ring. 570 */ 571 static int ice_diag_send(struct ice_ring *tx_ring, u8 *data, u16 size) 572 { 573 struct ice_tx_desc *tx_desc; 574 struct ice_tx_buf *tx_buf; 575 dma_addr_t dma; 576 u64 td_cmd; 577 578 tx_desc = ICE_TX_DESC(tx_ring, tx_ring->next_to_use); 579 tx_buf = &tx_ring->tx_buf[tx_ring->next_to_use]; 580 581 dma = dma_map_single(tx_ring->dev, data, size, DMA_TO_DEVICE); 582 if (dma_mapping_error(tx_ring->dev, dma)) 583 return -EINVAL; 584 585 tx_desc->buf_addr = cpu_to_le64(dma); 586 587 /* These flags are required for a descriptor to be pushed out */ 588 td_cmd = (u64)(ICE_TX_DESC_CMD_EOP | ICE_TX_DESC_CMD_RS); 589 tx_desc->cmd_type_offset_bsz = 590 cpu_to_le64(ICE_TX_DESC_DTYPE_DATA | 591 (td_cmd << ICE_TXD_QW1_CMD_S) | 592 ((u64)0 << ICE_TXD_QW1_OFFSET_S) | 593 ((u64)size << ICE_TXD_QW1_TX_BUF_SZ_S) | 594 ((u64)0 << ICE_TXD_QW1_L2TAG1_S)); 595 596 tx_buf->next_to_watch = tx_desc; 597 598 /* Force memory write to complete before letting h/w know 599 * there are new descriptors to fetch. 600 */ 601 wmb(); 602 603 tx_ring->next_to_use++; 604 if (tx_ring->next_to_use >= tx_ring->count) 605 tx_ring->next_to_use = 0; 606 607 writel_relaxed(tx_ring->next_to_use, tx_ring->tail); 608 609 /* Wait until the packets get transmitted to the receive queue. */ 610 usleep_range(1000, 2000); 611 dma_unmap_single(tx_ring->dev, dma, size, DMA_TO_DEVICE); 612 613 return 0; 614 } 615 616 #define ICE_LB_FRAME_SIZE 64 617 /** 618 * ice_lbtest_receive_frames - receive and verify test frames 619 * @rx_ring: pointer to the receive ring 620 * 621 * Function receives loopback packets and verify their correctness. 622 * Returns number of received valid frames. 623 */ 624 static int ice_lbtest_receive_frames(struct ice_ring *rx_ring) 625 { 626 struct ice_rx_buf *rx_buf; 627 int valid_frames, i; 628 u8 *received_buf; 629 630 valid_frames = 0; 631 632 for (i = 0; i < rx_ring->count; i++) { 633 union ice_32b_rx_flex_desc *rx_desc; 634 635 rx_desc = ICE_RX_DESC(rx_ring, i); 636 637 if (!(rx_desc->wb.status_error0 & 638 cpu_to_le16(ICE_TX_DESC_CMD_EOP | ICE_TX_DESC_CMD_RS))) 639 continue; 640 641 rx_buf = &rx_ring->rx_buf[i]; 642 received_buf = page_address(rx_buf->page) + rx_buf->page_offset; 643 644 if (ice_lbtest_check_frame(received_buf)) 645 valid_frames++; 646 } 647 648 return valid_frames; 649 } 650 651 /** 652 * ice_loopback_test - perform a loopback test on a given net_device 653 * @netdev: network interface device structure 654 * 655 * This function performs one of the self-tests required by ethtool. 656 * Returns 0 on success, non-zero on failure. 657 */ 658 static u64 ice_loopback_test(struct net_device *netdev) 659 { 660 struct ice_netdev_priv *np = netdev_priv(netdev); 661 struct ice_vsi *orig_vsi = np->vsi, *test_vsi; 662 struct ice_pf *pf = orig_vsi->back; 663 struct ice_ring *tx_ring, *rx_ring; 664 u8 broadcast[ETH_ALEN], ret = 0; 665 int num_frames, valid_frames; 666 LIST_HEAD(tmp_list); 667 struct device *dev; 668 u8 *tx_frame; 669 int i; 670 671 dev = ice_pf_to_dev(pf); 672 netdev_info(netdev, "loopback test\n"); 673 674 test_vsi = ice_lb_vsi_setup(pf, pf->hw.port_info); 675 if (!test_vsi) { 676 netdev_err(netdev, "Failed to create a VSI for the loopback test\n"); 677 return 1; 678 } 679 680 test_vsi->netdev = netdev; 681 tx_ring = test_vsi->tx_rings[0]; 682 rx_ring = test_vsi->rx_rings[0]; 683 684 if (ice_lbtest_prepare_rings(test_vsi)) { 685 ret = 2; 686 goto lbtest_vsi_close; 687 } 688 689 if (ice_alloc_rx_bufs(rx_ring, rx_ring->count)) { 690 ret = 3; 691 goto lbtest_rings_dis; 692 } 693 694 /* Enable MAC loopback in firmware */ 695 if (ice_aq_set_mac_loopback(&pf->hw, true, NULL)) { 696 ret = 4; 697 goto lbtest_mac_dis; 698 } 699 700 /* Test VSI needs to receive broadcast packets */ 701 eth_broadcast_addr(broadcast); 702 if (ice_add_mac_to_list(test_vsi, &tmp_list, broadcast)) { 703 ret = 5; 704 goto lbtest_mac_dis; 705 } 706 707 if (ice_add_mac(&pf->hw, &tmp_list)) { 708 ret = 6; 709 goto free_mac_list; 710 } 711 712 if (ice_lbtest_create_frame(pf, &tx_frame, ICE_LB_FRAME_SIZE)) { 713 ret = 7; 714 goto remove_mac_filters; 715 } 716 717 num_frames = min_t(int, tx_ring->count, 32); 718 for (i = 0; i < num_frames; i++) { 719 if (ice_diag_send(tx_ring, tx_frame, ICE_LB_FRAME_SIZE)) { 720 ret = 8; 721 goto lbtest_free_frame; 722 } 723 } 724 725 valid_frames = ice_lbtest_receive_frames(rx_ring); 726 if (!valid_frames) 727 ret = 9; 728 else if (valid_frames != num_frames) 729 ret = 10; 730 731 lbtest_free_frame: 732 devm_kfree(dev, tx_frame); 733 remove_mac_filters: 734 if (ice_remove_mac(&pf->hw, &tmp_list)) 735 netdev_err(netdev, "Could not remove MAC filter for the test VSI\n"); 736 free_mac_list: 737 ice_free_fltr_list(dev, &tmp_list); 738 lbtest_mac_dis: 739 /* Disable MAC loopback after the test is completed. */ 740 if (ice_aq_set_mac_loopback(&pf->hw, false, NULL)) 741 netdev_err(netdev, "Could not disable MAC loopback\n"); 742 lbtest_rings_dis: 743 if (ice_lbtest_disable_rings(test_vsi)) 744 netdev_err(netdev, "Could not disable test rings\n"); 745 lbtest_vsi_close: 746 test_vsi->netdev = NULL; 747 if (ice_vsi_release(test_vsi)) 748 netdev_err(netdev, "Failed to remove the test VSI\n"); 749 750 return ret; 751 } 752 753 /** 754 * ice_intr_test - perform an interrupt test on a given net_device 755 * @netdev: network interface device structure 756 * 757 * This function performs one of the self-tests required by ethtool. 758 * Returns 0 on success, non-zero on failure. 759 */ 760 static u64 ice_intr_test(struct net_device *netdev) 761 { 762 struct ice_netdev_priv *np = netdev_priv(netdev); 763 struct ice_pf *pf = np->vsi->back; 764 u16 swic_old = pf->sw_int_count; 765 766 netdev_info(netdev, "interrupt test\n"); 767 768 wr32(&pf->hw, GLINT_DYN_CTL(pf->oicr_idx), 769 GLINT_DYN_CTL_SW_ITR_INDX_M | 770 GLINT_DYN_CTL_INTENA_MSK_M | 771 GLINT_DYN_CTL_SWINT_TRIG_M); 772 773 usleep_range(1000, 2000); 774 return (swic_old == pf->sw_int_count); 775 } 776 777 /** 778 * ice_self_test - handler function for performing a self-test by ethtool 779 * @netdev: network interface device structure 780 * @eth_test: ethtool_test structure 781 * @data: required by ethtool.self_test 782 * 783 * This function is called after invoking 'ethtool -t devname' command where 784 * devname is the name of the network device on which ethtool should operate. 785 * It performs a set of self-tests to check if a device works properly. 786 */ 787 static void 788 ice_self_test(struct net_device *netdev, struct ethtool_test *eth_test, 789 u64 *data) 790 { 791 struct ice_netdev_priv *np = netdev_priv(netdev); 792 bool if_running = netif_running(netdev); 793 struct ice_pf *pf = np->vsi->back; 794 struct device *dev; 795 796 dev = ice_pf_to_dev(pf); 797 798 if (eth_test->flags == ETH_TEST_FL_OFFLINE) { 799 netdev_info(netdev, "offline testing starting\n"); 800 801 set_bit(__ICE_TESTING, pf->state); 802 803 if (ice_active_vfs(pf)) { 804 dev_warn(dev, "Please take active VFs and Netqueues offline and restart the adapter before running NIC diagnostics\n"); 805 data[ICE_ETH_TEST_REG] = 1; 806 data[ICE_ETH_TEST_EEPROM] = 1; 807 data[ICE_ETH_TEST_INTR] = 1; 808 data[ICE_ETH_TEST_LOOP] = 1; 809 data[ICE_ETH_TEST_LINK] = 1; 810 eth_test->flags |= ETH_TEST_FL_FAILED; 811 clear_bit(__ICE_TESTING, pf->state); 812 goto skip_ol_tests; 813 } 814 /* If the device is online then take it offline */ 815 if (if_running) 816 /* indicate we're in test mode */ 817 ice_stop(netdev); 818 819 data[ICE_ETH_TEST_LINK] = ice_link_test(netdev); 820 data[ICE_ETH_TEST_EEPROM] = ice_eeprom_test(netdev); 821 data[ICE_ETH_TEST_INTR] = ice_intr_test(netdev); 822 data[ICE_ETH_TEST_LOOP] = ice_loopback_test(netdev); 823 data[ICE_ETH_TEST_REG] = ice_reg_test(netdev); 824 825 if (data[ICE_ETH_TEST_LINK] || 826 data[ICE_ETH_TEST_EEPROM] || 827 data[ICE_ETH_TEST_LOOP] || 828 data[ICE_ETH_TEST_INTR] || 829 data[ICE_ETH_TEST_REG]) 830 eth_test->flags |= ETH_TEST_FL_FAILED; 831 832 clear_bit(__ICE_TESTING, pf->state); 833 834 if (if_running) { 835 int status = ice_open(netdev); 836 837 if (status) { 838 dev_err(dev, "Could not open device %s, err %d\n", 839 pf->int_name, status); 840 } 841 } 842 } else { 843 /* Online tests */ 844 netdev_info(netdev, "online testing starting\n"); 845 846 data[ICE_ETH_TEST_LINK] = ice_link_test(netdev); 847 if (data[ICE_ETH_TEST_LINK]) 848 eth_test->flags |= ETH_TEST_FL_FAILED; 849 850 /* Offline only tests, not run in online; pass by default */ 851 data[ICE_ETH_TEST_REG] = 0; 852 data[ICE_ETH_TEST_EEPROM] = 0; 853 data[ICE_ETH_TEST_INTR] = 0; 854 data[ICE_ETH_TEST_LOOP] = 0; 855 } 856 857 skip_ol_tests: 858 netdev_info(netdev, "testing finished\n"); 859 } 860 861 static void ice_get_strings(struct net_device *netdev, u32 stringset, u8 *data) 862 { 863 struct ice_netdev_priv *np = netdev_priv(netdev); 864 struct ice_vsi *vsi = np->vsi; 865 char *p = (char *)data; 866 unsigned int i; 867 868 switch (stringset) { 869 case ETH_SS_STATS: 870 for (i = 0; i < ICE_VSI_STATS_LEN; i++) { 871 snprintf(p, ETH_GSTRING_LEN, "%s", 872 ice_gstrings_vsi_stats[i].stat_string); 873 p += ETH_GSTRING_LEN; 874 } 875 876 ice_for_each_alloc_txq(vsi, i) { 877 snprintf(p, ETH_GSTRING_LEN, 878 "tx_queue_%u_packets", i); 879 p += ETH_GSTRING_LEN; 880 snprintf(p, ETH_GSTRING_LEN, "tx_queue_%u_bytes", i); 881 p += ETH_GSTRING_LEN; 882 } 883 884 ice_for_each_alloc_rxq(vsi, i) { 885 snprintf(p, ETH_GSTRING_LEN, 886 "rx_queue_%u_packets", i); 887 p += ETH_GSTRING_LEN; 888 snprintf(p, ETH_GSTRING_LEN, "rx_queue_%u_bytes", i); 889 p += ETH_GSTRING_LEN; 890 } 891 892 if (vsi->type != ICE_VSI_PF) 893 return; 894 895 for (i = 0; i < ICE_PF_STATS_LEN; i++) { 896 snprintf(p, ETH_GSTRING_LEN, "%s", 897 ice_gstrings_pf_stats[i].stat_string); 898 p += ETH_GSTRING_LEN; 899 } 900 901 for (i = 0; i < ICE_MAX_USER_PRIORITY; i++) { 902 snprintf(p, ETH_GSTRING_LEN, 903 "tx_priority_%u_xon.nic", i); 904 p += ETH_GSTRING_LEN; 905 snprintf(p, ETH_GSTRING_LEN, 906 "tx_priority_%u_xoff.nic", i); 907 p += ETH_GSTRING_LEN; 908 } 909 for (i = 0; i < ICE_MAX_USER_PRIORITY; i++) { 910 snprintf(p, ETH_GSTRING_LEN, 911 "rx_priority_%u_xon.nic", i); 912 p += ETH_GSTRING_LEN; 913 snprintf(p, ETH_GSTRING_LEN, 914 "rx_priority_%u_xoff.nic", i); 915 p += ETH_GSTRING_LEN; 916 } 917 break; 918 case ETH_SS_TEST: 919 memcpy(data, ice_gstrings_test, ICE_TEST_LEN * ETH_GSTRING_LEN); 920 break; 921 case ETH_SS_PRIV_FLAGS: 922 for (i = 0; i < ICE_PRIV_FLAG_ARRAY_SIZE; i++) { 923 snprintf(p, ETH_GSTRING_LEN, "%s", 924 ice_gstrings_priv_flags[i].name); 925 p += ETH_GSTRING_LEN; 926 } 927 break; 928 default: 929 break; 930 } 931 } 932 933 static int 934 ice_set_phys_id(struct net_device *netdev, enum ethtool_phys_id_state state) 935 { 936 struct ice_netdev_priv *np = netdev_priv(netdev); 937 bool led_active; 938 939 switch (state) { 940 case ETHTOOL_ID_ACTIVE: 941 led_active = true; 942 break; 943 case ETHTOOL_ID_INACTIVE: 944 led_active = false; 945 break; 946 default: 947 return -EINVAL; 948 } 949 950 if (ice_aq_set_port_id_led(np->vsi->port_info, !led_active, NULL)) 951 return -EIO; 952 953 return 0; 954 } 955 956 /** 957 * ice_set_fec_cfg - Set link FEC options 958 * @netdev: network interface device structure 959 * @req_fec: FEC mode to configure 960 */ 961 static int ice_set_fec_cfg(struct net_device *netdev, enum ice_fec_mode req_fec) 962 { 963 struct ice_netdev_priv *np = netdev_priv(netdev); 964 struct ice_aqc_set_phy_cfg_data config = { 0 }; 965 struct ice_aqc_get_phy_caps_data *caps; 966 struct ice_vsi *vsi = np->vsi; 967 u8 sw_cfg_caps, sw_cfg_fec; 968 struct ice_port_info *pi; 969 enum ice_status status; 970 int err = 0; 971 972 pi = vsi->port_info; 973 if (!pi) 974 return -EOPNOTSUPP; 975 976 /* Changing the FEC parameters is not supported if not the PF VSI */ 977 if (vsi->type != ICE_VSI_PF) { 978 netdev_info(netdev, "Changing FEC parameters only supported for PF VSI\n"); 979 return -EOPNOTSUPP; 980 } 981 982 /* Get last SW configuration */ 983 caps = kzalloc(sizeof(*caps), GFP_KERNEL); 984 if (!caps) 985 return -ENOMEM; 986 987 status = ice_aq_get_phy_caps(pi, false, ICE_AQC_REPORT_SW_CFG, 988 caps, NULL); 989 if (status) { 990 err = -EAGAIN; 991 goto done; 992 } 993 994 /* Copy SW configuration returned from PHY caps to PHY config */ 995 ice_copy_phy_caps_to_cfg(caps, &config); 996 sw_cfg_caps = caps->caps; 997 sw_cfg_fec = caps->link_fec_options; 998 999 /* Get toloplogy caps, then copy PHY FEC topoloy caps to PHY config */ 1000 memset(caps, 0, sizeof(*caps)); 1001 1002 status = ice_aq_get_phy_caps(pi, false, ICE_AQC_REPORT_TOPO_CAP, 1003 caps, NULL); 1004 if (status) { 1005 err = -EAGAIN; 1006 goto done; 1007 } 1008 1009 config.caps |= (caps->caps & ICE_AQC_PHY_EN_AUTO_FEC); 1010 config.link_fec_opt = caps->link_fec_options; 1011 1012 ice_cfg_phy_fec(&config, req_fec); 1013 1014 /* If FEC mode has changed, then set PHY configuration and enable AN. */ 1015 if ((config.caps & ICE_AQ_PHY_ENA_AUTO_FEC) != 1016 (sw_cfg_caps & ICE_AQC_PHY_EN_AUTO_FEC) || 1017 config.link_fec_opt != sw_cfg_fec) { 1018 if (caps->caps & ICE_AQC_PHY_AN_MODE) 1019 config.caps |= ICE_AQ_PHY_ENA_AUTO_LINK_UPDT; 1020 1021 status = ice_aq_set_phy_cfg(pi->hw, pi->lport, &config, NULL); 1022 1023 if (status) 1024 err = -EAGAIN; 1025 } 1026 1027 done: 1028 kfree(caps); 1029 return err; 1030 } 1031 1032 /** 1033 * ice_set_fecparam - Set FEC link options 1034 * @netdev: network interface device structure 1035 * @fecparam: Ethtool structure to retrieve FEC parameters 1036 */ 1037 static int 1038 ice_set_fecparam(struct net_device *netdev, struct ethtool_fecparam *fecparam) 1039 { 1040 struct ice_netdev_priv *np = netdev_priv(netdev); 1041 struct ice_vsi *vsi = np->vsi; 1042 enum ice_fec_mode fec; 1043 1044 switch (fecparam->fec) { 1045 case ETHTOOL_FEC_AUTO: 1046 fec = ICE_FEC_AUTO; 1047 break; 1048 case ETHTOOL_FEC_RS: 1049 fec = ICE_FEC_RS; 1050 break; 1051 case ETHTOOL_FEC_BASER: 1052 fec = ICE_FEC_BASER; 1053 break; 1054 case ETHTOOL_FEC_OFF: 1055 case ETHTOOL_FEC_NONE: 1056 fec = ICE_FEC_NONE; 1057 break; 1058 default: 1059 dev_warn(ice_pf_to_dev(vsi->back), "Unsupported FEC mode: %d\n", 1060 fecparam->fec); 1061 return -EINVAL; 1062 } 1063 1064 return ice_set_fec_cfg(netdev, fec); 1065 } 1066 1067 /** 1068 * ice_get_fecparam - Get link FEC options 1069 * @netdev: network interface device structure 1070 * @fecparam: Ethtool structure to retrieve FEC parameters 1071 */ 1072 static int 1073 ice_get_fecparam(struct net_device *netdev, struct ethtool_fecparam *fecparam) 1074 { 1075 struct ice_netdev_priv *np = netdev_priv(netdev); 1076 struct ice_aqc_get_phy_caps_data *caps; 1077 struct ice_link_status *link_info; 1078 struct ice_vsi *vsi = np->vsi; 1079 struct ice_port_info *pi; 1080 enum ice_status status; 1081 int err = 0; 1082 1083 pi = vsi->port_info; 1084 1085 if (!pi) 1086 return -EOPNOTSUPP; 1087 link_info = &pi->phy.link_info; 1088 1089 /* Set FEC mode based on negotiated link info */ 1090 switch (link_info->fec_info) { 1091 case ICE_AQ_LINK_25G_KR_FEC_EN: 1092 fecparam->active_fec = ETHTOOL_FEC_BASER; 1093 break; 1094 case ICE_AQ_LINK_25G_RS_528_FEC_EN: 1095 case ICE_AQ_LINK_25G_RS_544_FEC_EN: 1096 fecparam->active_fec = ETHTOOL_FEC_RS; 1097 break; 1098 default: 1099 fecparam->active_fec = ETHTOOL_FEC_OFF; 1100 break; 1101 } 1102 1103 caps = kzalloc(sizeof(*caps), GFP_KERNEL); 1104 if (!caps) 1105 return -ENOMEM; 1106 1107 status = ice_aq_get_phy_caps(pi, false, ICE_AQC_REPORT_TOPO_CAP, 1108 caps, NULL); 1109 if (status) { 1110 err = -EAGAIN; 1111 goto done; 1112 } 1113 1114 /* Set supported/configured FEC modes based on PHY capability */ 1115 if (caps->caps & ICE_AQC_PHY_EN_AUTO_FEC) 1116 fecparam->fec |= ETHTOOL_FEC_AUTO; 1117 if (caps->link_fec_options & ICE_AQC_PHY_FEC_10G_KR_40G_KR4_EN || 1118 caps->link_fec_options & ICE_AQC_PHY_FEC_10G_KR_40G_KR4_REQ || 1119 caps->link_fec_options & ICE_AQC_PHY_FEC_25G_KR_CLAUSE74_EN || 1120 caps->link_fec_options & ICE_AQC_PHY_FEC_25G_KR_REQ) 1121 fecparam->fec |= ETHTOOL_FEC_BASER; 1122 if (caps->link_fec_options & ICE_AQC_PHY_FEC_25G_RS_528_REQ || 1123 caps->link_fec_options & ICE_AQC_PHY_FEC_25G_RS_544_REQ || 1124 caps->link_fec_options & ICE_AQC_PHY_FEC_25G_RS_CLAUSE91_EN) 1125 fecparam->fec |= ETHTOOL_FEC_RS; 1126 if (caps->link_fec_options == 0) 1127 fecparam->fec |= ETHTOOL_FEC_OFF; 1128 1129 done: 1130 kfree(caps); 1131 return err; 1132 } 1133 1134 /** 1135 * ice_get_priv_flags - report device private flags 1136 * @netdev: network interface device structure 1137 * 1138 * The get string set count and the string set should be matched for each 1139 * flag returned. Add new strings for each flag to the ice_gstrings_priv_flags 1140 * array. 1141 * 1142 * Returns a u32 bitmap of flags. 1143 */ 1144 static u32 ice_get_priv_flags(struct net_device *netdev) 1145 { 1146 struct ice_netdev_priv *np = netdev_priv(netdev); 1147 struct ice_vsi *vsi = np->vsi; 1148 struct ice_pf *pf = vsi->back; 1149 u32 i, ret_flags = 0; 1150 1151 for (i = 0; i < ICE_PRIV_FLAG_ARRAY_SIZE; i++) { 1152 const struct ice_priv_flag *priv_flag; 1153 1154 priv_flag = &ice_gstrings_priv_flags[i]; 1155 1156 if (test_bit(priv_flag->bitno, pf->flags)) 1157 ret_flags |= BIT(i); 1158 } 1159 1160 return ret_flags; 1161 } 1162 1163 /** 1164 * ice_set_priv_flags - set private flags 1165 * @netdev: network interface device structure 1166 * @flags: bit flags to be set 1167 */ 1168 static int ice_set_priv_flags(struct net_device *netdev, u32 flags) 1169 { 1170 struct ice_netdev_priv *np = netdev_priv(netdev); 1171 DECLARE_BITMAP(change_flags, ICE_PF_FLAGS_NBITS); 1172 DECLARE_BITMAP(orig_flags, ICE_PF_FLAGS_NBITS); 1173 struct ice_vsi *vsi = np->vsi; 1174 struct ice_pf *pf = vsi->back; 1175 struct device *dev; 1176 int ret = 0; 1177 u32 i; 1178 1179 if (flags > BIT(ICE_PRIV_FLAG_ARRAY_SIZE)) 1180 return -EINVAL; 1181 1182 dev = ice_pf_to_dev(pf); 1183 set_bit(ICE_FLAG_ETHTOOL_CTXT, pf->flags); 1184 1185 bitmap_copy(orig_flags, pf->flags, ICE_PF_FLAGS_NBITS); 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 (flags & BIT(i)) 1192 set_bit(priv_flag->bitno, pf->flags); 1193 else 1194 clear_bit(priv_flag->bitno, pf->flags); 1195 } 1196 1197 bitmap_xor(change_flags, pf->flags, orig_flags, ICE_PF_FLAGS_NBITS); 1198 1199 if (test_bit(ICE_FLAG_FW_LLDP_AGENT, change_flags)) { 1200 if (!test_bit(ICE_FLAG_FW_LLDP_AGENT, pf->flags)) { 1201 enum ice_status status; 1202 1203 /* Disable FW LLDP engine */ 1204 status = ice_cfg_lldp_mib_change(&pf->hw, false); 1205 1206 /* If unregistering for LLDP events fails, this is 1207 * not an error state, as there shouldn't be any 1208 * events to respond to. 1209 */ 1210 if (status) 1211 dev_info(dev, "Failed to unreg for LLDP events\n"); 1212 1213 /* The AQ call to stop the FW LLDP agent will generate 1214 * an error if the agent is already stopped. 1215 */ 1216 status = ice_aq_stop_lldp(&pf->hw, true, true, NULL); 1217 if (status) 1218 dev_warn(dev, "Fail to stop LLDP agent\n"); 1219 /* Use case for having the FW LLDP agent stopped 1220 * will likely not need DCB, so failure to init is 1221 * not a concern of ethtool 1222 */ 1223 status = ice_init_pf_dcb(pf, true); 1224 if (status) 1225 dev_warn(dev, "Fail to init DCB\n"); 1226 } else { 1227 enum ice_status status; 1228 bool dcbx_agent_status; 1229 1230 /* AQ command to start FW LLDP agent will return an 1231 * error if the agent is already started 1232 */ 1233 status = ice_aq_start_lldp(&pf->hw, true, NULL); 1234 if (status) 1235 dev_warn(dev, "Fail to start LLDP Agent\n"); 1236 1237 /* AQ command to start FW DCBX agent will fail if 1238 * the agent is already started 1239 */ 1240 status = ice_aq_start_stop_dcbx(&pf->hw, true, 1241 &dcbx_agent_status, 1242 NULL); 1243 if (status) 1244 dev_dbg(dev, "Failed to start FW DCBX\n"); 1245 1246 dev_info(dev, "FW DCBX agent is %s\n", 1247 dcbx_agent_status ? "ACTIVE" : "DISABLED"); 1248 1249 /* Failure to configure MIB change or init DCB is not 1250 * relevant to ethtool. Print notification that 1251 * registration/init failed but do not return error 1252 * state to ethtool 1253 */ 1254 status = ice_init_pf_dcb(pf, true); 1255 if (status) 1256 dev_dbg(dev, "Fail to init DCB\n"); 1257 1258 /* Remove rule to direct LLDP packets to default VSI. 1259 * The FW LLDP engine will now be consuming them. 1260 */ 1261 ice_cfg_sw_lldp(vsi, false, false); 1262 1263 /* Register for MIB change events */ 1264 status = ice_cfg_lldp_mib_change(&pf->hw, true); 1265 if (status) 1266 dev_dbg(dev, "Fail to enable MIB change events\n"); 1267 } 1268 } 1269 if (test_bit(ICE_FLAG_LEGACY_RX, change_flags)) { 1270 /* down and up VSI so that changes of Rx cfg are reflected. */ 1271 ice_down(vsi); 1272 ice_up(vsi); 1273 } 1274 clear_bit(ICE_FLAG_ETHTOOL_CTXT, pf->flags); 1275 return ret; 1276 } 1277 1278 static int ice_get_sset_count(struct net_device *netdev, int sset) 1279 { 1280 switch (sset) { 1281 case ETH_SS_STATS: 1282 /* The number (and order) of strings reported *must* remain 1283 * constant for a given netdevice. This function must not 1284 * report a different number based on run time parameters 1285 * (such as the number of queues in use, or the setting of 1286 * a private ethtool flag). This is due to the nature of the 1287 * ethtool stats API. 1288 * 1289 * Userspace programs such as ethtool must make 3 separate 1290 * ioctl requests, one for size, one for the strings, and 1291 * finally one for the stats. Since these cross into 1292 * userspace, changes to the number or size could result in 1293 * undefined memory access or incorrect string<->value 1294 * correlations for statistics. 1295 * 1296 * Even if it appears to be safe, changes to the size or 1297 * order of strings will suffer from race conditions and are 1298 * not safe. 1299 */ 1300 return ICE_ALL_STATS_LEN(netdev); 1301 case ETH_SS_TEST: 1302 return ICE_TEST_LEN; 1303 case ETH_SS_PRIV_FLAGS: 1304 return ICE_PRIV_FLAG_ARRAY_SIZE; 1305 default: 1306 return -EOPNOTSUPP; 1307 } 1308 } 1309 1310 static void 1311 ice_get_ethtool_stats(struct net_device *netdev, 1312 struct ethtool_stats __always_unused *stats, u64 *data) 1313 { 1314 struct ice_netdev_priv *np = netdev_priv(netdev); 1315 struct ice_vsi *vsi = np->vsi; 1316 struct ice_pf *pf = vsi->back; 1317 struct ice_ring *ring; 1318 unsigned int j; 1319 int i = 0; 1320 char *p; 1321 1322 ice_update_pf_stats(pf); 1323 ice_update_vsi_stats(vsi); 1324 1325 for (j = 0; j < ICE_VSI_STATS_LEN; j++) { 1326 p = (char *)vsi + ice_gstrings_vsi_stats[j].stat_offset; 1327 data[i++] = (ice_gstrings_vsi_stats[j].sizeof_stat == 1328 sizeof(u64)) ? *(u64 *)p : *(u32 *)p; 1329 } 1330 1331 /* populate per queue stats */ 1332 rcu_read_lock(); 1333 1334 ice_for_each_alloc_txq(vsi, j) { 1335 ring = READ_ONCE(vsi->tx_rings[j]); 1336 if (ring) { 1337 data[i++] = ring->stats.pkts; 1338 data[i++] = ring->stats.bytes; 1339 } else { 1340 data[i++] = 0; 1341 data[i++] = 0; 1342 } 1343 } 1344 1345 ice_for_each_alloc_rxq(vsi, j) { 1346 ring = READ_ONCE(vsi->rx_rings[j]); 1347 if (ring) { 1348 data[i++] = ring->stats.pkts; 1349 data[i++] = ring->stats.bytes; 1350 } else { 1351 data[i++] = 0; 1352 data[i++] = 0; 1353 } 1354 } 1355 1356 rcu_read_unlock(); 1357 1358 if (vsi->type != ICE_VSI_PF) 1359 return; 1360 1361 for (j = 0; j < ICE_PF_STATS_LEN; j++) { 1362 p = (char *)pf + ice_gstrings_pf_stats[j].stat_offset; 1363 data[i++] = (ice_gstrings_pf_stats[j].sizeof_stat == 1364 sizeof(u64)) ? *(u64 *)p : *(u32 *)p; 1365 } 1366 1367 for (j = 0; j < ICE_MAX_USER_PRIORITY; j++) { 1368 data[i++] = pf->stats.priority_xon_tx[j]; 1369 data[i++] = pf->stats.priority_xoff_tx[j]; 1370 } 1371 1372 for (j = 0; j < ICE_MAX_USER_PRIORITY; j++) { 1373 data[i++] = pf->stats.priority_xon_rx[j]; 1374 data[i++] = pf->stats.priority_xoff_rx[j]; 1375 } 1376 } 1377 1378 /** 1379 * ice_phy_type_to_ethtool - convert the phy_types to ethtool link modes 1380 * @netdev: network interface device structure 1381 * @ks: ethtool link ksettings struct to fill out 1382 */ 1383 static void 1384 ice_phy_type_to_ethtool(struct net_device *netdev, 1385 struct ethtool_link_ksettings *ks) 1386 { 1387 struct ice_netdev_priv *np = netdev_priv(netdev); 1388 struct ice_link_status *hw_link_info; 1389 bool need_add_adv_mode = false; 1390 struct ice_vsi *vsi = np->vsi; 1391 u64 phy_types_high; 1392 u64 phy_types_low; 1393 1394 hw_link_info = &vsi->port_info->phy.link_info; 1395 phy_types_low = vsi->port_info->phy.phy_type_low; 1396 phy_types_high = vsi->port_info->phy.phy_type_high; 1397 1398 ethtool_link_ksettings_zero_link_mode(ks, supported); 1399 ethtool_link_ksettings_zero_link_mode(ks, advertising); 1400 1401 if (phy_types_low & ICE_PHY_TYPE_LOW_100BASE_TX || 1402 phy_types_low & ICE_PHY_TYPE_LOW_100M_SGMII) { 1403 ethtool_link_ksettings_add_link_mode(ks, supported, 1404 100baseT_Full); 1405 if (!hw_link_info->req_speeds || 1406 hw_link_info->req_speeds & ICE_AQ_LINK_SPEED_100MB) 1407 ethtool_link_ksettings_add_link_mode(ks, advertising, 1408 100baseT_Full); 1409 } 1410 if (phy_types_low & ICE_PHY_TYPE_LOW_1000BASE_T || 1411 phy_types_low & ICE_PHY_TYPE_LOW_1G_SGMII) { 1412 ethtool_link_ksettings_add_link_mode(ks, supported, 1413 1000baseT_Full); 1414 if (!hw_link_info->req_speeds || 1415 hw_link_info->req_speeds & ICE_AQ_LINK_SPEED_1000MB) 1416 ethtool_link_ksettings_add_link_mode(ks, advertising, 1417 1000baseT_Full); 1418 } 1419 if (phy_types_low & ICE_PHY_TYPE_LOW_1000BASE_KX) { 1420 ethtool_link_ksettings_add_link_mode(ks, supported, 1421 1000baseKX_Full); 1422 if (!hw_link_info->req_speeds || 1423 hw_link_info->req_speeds & ICE_AQ_LINK_SPEED_1000MB) 1424 ethtool_link_ksettings_add_link_mode(ks, advertising, 1425 1000baseKX_Full); 1426 } 1427 if (phy_types_low & ICE_PHY_TYPE_LOW_1000BASE_SX || 1428 phy_types_low & ICE_PHY_TYPE_LOW_1000BASE_LX) { 1429 ethtool_link_ksettings_add_link_mode(ks, supported, 1430 1000baseX_Full); 1431 if (!hw_link_info->req_speeds || 1432 hw_link_info->req_speeds & ICE_AQ_LINK_SPEED_1000MB) 1433 ethtool_link_ksettings_add_link_mode(ks, advertising, 1434 1000baseX_Full); 1435 } 1436 if (phy_types_low & ICE_PHY_TYPE_LOW_2500BASE_T) { 1437 ethtool_link_ksettings_add_link_mode(ks, supported, 1438 2500baseT_Full); 1439 if (!hw_link_info->req_speeds || 1440 hw_link_info->req_speeds & ICE_AQ_LINK_SPEED_2500MB) 1441 ethtool_link_ksettings_add_link_mode(ks, advertising, 1442 2500baseT_Full); 1443 } 1444 if (phy_types_low & ICE_PHY_TYPE_LOW_2500BASE_X || 1445 phy_types_low & ICE_PHY_TYPE_LOW_2500BASE_KX) { 1446 ethtool_link_ksettings_add_link_mode(ks, supported, 1447 2500baseX_Full); 1448 if (!hw_link_info->req_speeds || 1449 hw_link_info->req_speeds & ICE_AQ_LINK_SPEED_2500MB) 1450 ethtool_link_ksettings_add_link_mode(ks, advertising, 1451 2500baseX_Full); 1452 } 1453 if (phy_types_low & ICE_PHY_TYPE_LOW_5GBASE_T || 1454 phy_types_low & ICE_PHY_TYPE_LOW_5GBASE_KR) { 1455 ethtool_link_ksettings_add_link_mode(ks, supported, 1456 5000baseT_Full); 1457 if (!hw_link_info->req_speeds || 1458 hw_link_info->req_speeds & ICE_AQ_LINK_SPEED_5GB) 1459 ethtool_link_ksettings_add_link_mode(ks, advertising, 1460 5000baseT_Full); 1461 } 1462 if (phy_types_low & ICE_PHY_TYPE_LOW_10GBASE_T || 1463 phy_types_low & ICE_PHY_TYPE_LOW_10G_SFI_DA || 1464 phy_types_low & ICE_PHY_TYPE_LOW_10G_SFI_AOC_ACC || 1465 phy_types_low & ICE_PHY_TYPE_LOW_10G_SFI_C2C) { 1466 ethtool_link_ksettings_add_link_mode(ks, supported, 1467 10000baseT_Full); 1468 if (!hw_link_info->req_speeds || 1469 hw_link_info->req_speeds & ICE_AQ_LINK_SPEED_10GB) 1470 ethtool_link_ksettings_add_link_mode(ks, advertising, 1471 10000baseT_Full); 1472 } 1473 if (phy_types_low & ICE_PHY_TYPE_LOW_10GBASE_KR_CR1) { 1474 ethtool_link_ksettings_add_link_mode(ks, supported, 1475 10000baseKR_Full); 1476 if (!hw_link_info->req_speeds || 1477 hw_link_info->req_speeds & ICE_AQ_LINK_SPEED_10GB) 1478 ethtool_link_ksettings_add_link_mode(ks, advertising, 1479 10000baseKR_Full); 1480 } 1481 if (phy_types_low & ICE_PHY_TYPE_LOW_10GBASE_SR) { 1482 ethtool_link_ksettings_add_link_mode(ks, supported, 1483 10000baseSR_Full); 1484 if (!hw_link_info->req_speeds || 1485 hw_link_info->req_speeds & ICE_AQ_LINK_SPEED_10GB) 1486 ethtool_link_ksettings_add_link_mode(ks, advertising, 1487 10000baseSR_Full); 1488 } 1489 if (phy_types_low & ICE_PHY_TYPE_LOW_10GBASE_LR) { 1490 ethtool_link_ksettings_add_link_mode(ks, supported, 1491 10000baseLR_Full); 1492 if (!hw_link_info->req_speeds || 1493 hw_link_info->req_speeds & ICE_AQ_LINK_SPEED_10GB) 1494 ethtool_link_ksettings_add_link_mode(ks, advertising, 1495 10000baseLR_Full); 1496 } 1497 if (phy_types_low & ICE_PHY_TYPE_LOW_25GBASE_T || 1498 phy_types_low & ICE_PHY_TYPE_LOW_25GBASE_CR || 1499 phy_types_low & ICE_PHY_TYPE_LOW_25GBASE_CR_S || 1500 phy_types_low & ICE_PHY_TYPE_LOW_25GBASE_CR1 || 1501 phy_types_low & ICE_PHY_TYPE_LOW_25G_AUI_AOC_ACC || 1502 phy_types_low & ICE_PHY_TYPE_LOW_25G_AUI_C2C) { 1503 ethtool_link_ksettings_add_link_mode(ks, supported, 1504 25000baseCR_Full); 1505 if (!hw_link_info->req_speeds || 1506 hw_link_info->req_speeds & ICE_AQ_LINK_SPEED_25GB) 1507 ethtool_link_ksettings_add_link_mode(ks, advertising, 1508 25000baseCR_Full); 1509 } 1510 if (phy_types_low & ICE_PHY_TYPE_LOW_25GBASE_SR || 1511 phy_types_low & ICE_PHY_TYPE_LOW_25GBASE_LR) { 1512 ethtool_link_ksettings_add_link_mode(ks, supported, 1513 25000baseSR_Full); 1514 if (!hw_link_info->req_speeds || 1515 hw_link_info->req_speeds & ICE_AQ_LINK_SPEED_25GB) 1516 ethtool_link_ksettings_add_link_mode(ks, advertising, 1517 25000baseSR_Full); 1518 } 1519 if (phy_types_low & ICE_PHY_TYPE_LOW_25GBASE_KR || 1520 phy_types_low & ICE_PHY_TYPE_LOW_25GBASE_KR_S || 1521 phy_types_low & ICE_PHY_TYPE_LOW_25GBASE_KR1) { 1522 ethtool_link_ksettings_add_link_mode(ks, supported, 1523 25000baseKR_Full); 1524 if (!hw_link_info->req_speeds || 1525 hw_link_info->req_speeds & ICE_AQ_LINK_SPEED_25GB) 1526 ethtool_link_ksettings_add_link_mode(ks, advertising, 1527 25000baseKR_Full); 1528 } 1529 if (phy_types_low & ICE_PHY_TYPE_LOW_40GBASE_KR4) { 1530 ethtool_link_ksettings_add_link_mode(ks, supported, 1531 40000baseKR4_Full); 1532 if (!hw_link_info->req_speeds || 1533 hw_link_info->req_speeds & ICE_AQ_LINK_SPEED_40GB) 1534 ethtool_link_ksettings_add_link_mode(ks, advertising, 1535 40000baseKR4_Full); 1536 } 1537 if (phy_types_low & ICE_PHY_TYPE_LOW_40GBASE_CR4 || 1538 phy_types_low & ICE_PHY_TYPE_LOW_40G_XLAUI_AOC_ACC || 1539 phy_types_low & ICE_PHY_TYPE_LOW_40G_XLAUI) { 1540 ethtool_link_ksettings_add_link_mode(ks, supported, 1541 40000baseCR4_Full); 1542 if (!hw_link_info->req_speeds || 1543 hw_link_info->req_speeds & ICE_AQ_LINK_SPEED_40GB) 1544 ethtool_link_ksettings_add_link_mode(ks, advertising, 1545 40000baseCR4_Full); 1546 } 1547 if (phy_types_low & ICE_PHY_TYPE_LOW_40GBASE_SR4) { 1548 ethtool_link_ksettings_add_link_mode(ks, supported, 1549 40000baseSR4_Full); 1550 if (!hw_link_info->req_speeds || 1551 hw_link_info->req_speeds & ICE_AQ_LINK_SPEED_40GB) 1552 ethtool_link_ksettings_add_link_mode(ks, advertising, 1553 40000baseSR4_Full); 1554 } 1555 if (phy_types_low & ICE_PHY_TYPE_LOW_40GBASE_LR4) { 1556 ethtool_link_ksettings_add_link_mode(ks, supported, 1557 40000baseLR4_Full); 1558 if (!hw_link_info->req_speeds || 1559 hw_link_info->req_speeds & ICE_AQ_LINK_SPEED_40GB) 1560 ethtool_link_ksettings_add_link_mode(ks, advertising, 1561 40000baseLR4_Full); 1562 } 1563 if (phy_types_low & ICE_PHY_TYPE_LOW_50GBASE_CR2 || 1564 phy_types_low & ICE_PHY_TYPE_LOW_50G_LAUI2_AOC_ACC || 1565 phy_types_low & ICE_PHY_TYPE_LOW_50G_LAUI2 || 1566 phy_types_low & ICE_PHY_TYPE_LOW_50G_AUI2_AOC_ACC || 1567 phy_types_low & ICE_PHY_TYPE_LOW_50G_AUI2 || 1568 phy_types_low & ICE_PHY_TYPE_LOW_50GBASE_CP || 1569 phy_types_low & ICE_PHY_TYPE_LOW_50GBASE_SR || 1570 phy_types_low & ICE_PHY_TYPE_LOW_50G_AUI1_AOC_ACC || 1571 phy_types_low & ICE_PHY_TYPE_LOW_50G_AUI1) { 1572 ethtool_link_ksettings_add_link_mode(ks, supported, 1573 50000baseCR2_Full); 1574 if (!hw_link_info->req_speeds || 1575 hw_link_info->req_speeds & ICE_AQ_LINK_SPEED_50GB) 1576 ethtool_link_ksettings_add_link_mode(ks, advertising, 1577 50000baseCR2_Full); 1578 } 1579 if (phy_types_low & ICE_PHY_TYPE_LOW_50GBASE_KR2 || 1580 phy_types_low & ICE_PHY_TYPE_LOW_50GBASE_KR_PAM4) { 1581 ethtool_link_ksettings_add_link_mode(ks, supported, 1582 50000baseKR2_Full); 1583 if (!hw_link_info->req_speeds || 1584 hw_link_info->req_speeds & ICE_AQ_LINK_SPEED_50GB) 1585 ethtool_link_ksettings_add_link_mode(ks, advertising, 1586 50000baseKR2_Full); 1587 } 1588 if (phy_types_low & ICE_PHY_TYPE_LOW_50GBASE_SR2 || 1589 phy_types_low & ICE_PHY_TYPE_LOW_50GBASE_LR2 || 1590 phy_types_low & ICE_PHY_TYPE_LOW_50GBASE_FR || 1591 phy_types_low & ICE_PHY_TYPE_LOW_50GBASE_LR) { 1592 ethtool_link_ksettings_add_link_mode(ks, supported, 1593 50000baseSR2_Full); 1594 if (!hw_link_info->req_speeds || 1595 hw_link_info->req_speeds & ICE_AQ_LINK_SPEED_50GB) 1596 ethtool_link_ksettings_add_link_mode(ks, advertising, 1597 50000baseSR2_Full); 1598 } 1599 if (phy_types_low & ICE_PHY_TYPE_LOW_100GBASE_CR4 || 1600 phy_types_low & ICE_PHY_TYPE_LOW_100G_CAUI4_AOC_ACC || 1601 phy_types_low & ICE_PHY_TYPE_LOW_100G_CAUI4 || 1602 phy_types_low & ICE_PHY_TYPE_LOW_100G_AUI4_AOC_ACC || 1603 phy_types_low & ICE_PHY_TYPE_LOW_100G_AUI4 || 1604 phy_types_low & ICE_PHY_TYPE_LOW_100GBASE_CR_PAM4 || 1605 phy_types_low & ICE_PHY_TYPE_LOW_100GBASE_CP2 || 1606 phy_types_high & ICE_PHY_TYPE_HIGH_100G_CAUI2_AOC_ACC || 1607 phy_types_high & ICE_PHY_TYPE_HIGH_100G_CAUI2 || 1608 phy_types_high & ICE_PHY_TYPE_HIGH_100G_AUI2_AOC_ACC || 1609 phy_types_high & ICE_PHY_TYPE_HIGH_100G_AUI2) { 1610 ethtool_link_ksettings_add_link_mode(ks, supported, 1611 100000baseCR4_Full); 1612 if (!hw_link_info->req_speeds || 1613 hw_link_info->req_speeds & ICE_AQ_LINK_SPEED_100GB) 1614 need_add_adv_mode = true; 1615 } 1616 if (need_add_adv_mode) { 1617 need_add_adv_mode = false; 1618 ethtool_link_ksettings_add_link_mode(ks, advertising, 1619 100000baseCR4_Full); 1620 } 1621 if (phy_types_low & ICE_PHY_TYPE_LOW_100GBASE_SR4 || 1622 phy_types_low & ICE_PHY_TYPE_LOW_100GBASE_SR2) { 1623 ethtool_link_ksettings_add_link_mode(ks, supported, 1624 100000baseSR4_Full); 1625 if (!hw_link_info->req_speeds || 1626 hw_link_info->req_speeds & ICE_AQ_LINK_SPEED_100GB) 1627 need_add_adv_mode = true; 1628 } 1629 if (need_add_adv_mode) { 1630 need_add_adv_mode = false; 1631 ethtool_link_ksettings_add_link_mode(ks, advertising, 1632 100000baseSR4_Full); 1633 } 1634 if (phy_types_low & ICE_PHY_TYPE_LOW_100GBASE_LR4 || 1635 phy_types_low & ICE_PHY_TYPE_LOW_100GBASE_DR) { 1636 ethtool_link_ksettings_add_link_mode(ks, supported, 1637 100000baseLR4_ER4_Full); 1638 if (!hw_link_info->req_speeds || 1639 hw_link_info->req_speeds & ICE_AQ_LINK_SPEED_100GB) 1640 need_add_adv_mode = true; 1641 } 1642 if (need_add_adv_mode) { 1643 need_add_adv_mode = false; 1644 ethtool_link_ksettings_add_link_mode(ks, advertising, 1645 100000baseLR4_ER4_Full); 1646 } 1647 if (phy_types_low & ICE_PHY_TYPE_LOW_100GBASE_KR4 || 1648 phy_types_low & ICE_PHY_TYPE_LOW_100GBASE_KR_PAM4 || 1649 phy_types_high & ICE_PHY_TYPE_HIGH_100GBASE_KR2_PAM4) { 1650 ethtool_link_ksettings_add_link_mode(ks, supported, 1651 100000baseKR4_Full); 1652 if (!hw_link_info->req_speeds || 1653 hw_link_info->req_speeds & ICE_AQ_LINK_SPEED_100GB) 1654 need_add_adv_mode = true; 1655 } 1656 if (need_add_adv_mode) 1657 ethtool_link_ksettings_add_link_mode(ks, advertising, 1658 100000baseKR4_Full); 1659 1660 /* Autoneg PHY types */ 1661 if (phy_types_low & ICE_PHY_TYPE_LOW_100BASE_TX || 1662 phy_types_low & ICE_PHY_TYPE_LOW_1000BASE_T || 1663 phy_types_low & ICE_PHY_TYPE_LOW_1000BASE_KX || 1664 phy_types_low & ICE_PHY_TYPE_LOW_2500BASE_T || 1665 phy_types_low & ICE_PHY_TYPE_LOW_2500BASE_KX || 1666 phy_types_low & ICE_PHY_TYPE_LOW_5GBASE_T || 1667 phy_types_low & ICE_PHY_TYPE_LOW_5GBASE_KR || 1668 phy_types_low & ICE_PHY_TYPE_LOW_10GBASE_T || 1669 phy_types_low & ICE_PHY_TYPE_LOW_10GBASE_KR_CR1 || 1670 phy_types_low & ICE_PHY_TYPE_LOW_25GBASE_T || 1671 phy_types_low & ICE_PHY_TYPE_LOW_25GBASE_CR || 1672 phy_types_low & ICE_PHY_TYPE_LOW_25GBASE_CR_S || 1673 phy_types_low & ICE_PHY_TYPE_LOW_25GBASE_CR1 || 1674 phy_types_low & ICE_PHY_TYPE_LOW_25GBASE_KR || 1675 phy_types_low & ICE_PHY_TYPE_LOW_25GBASE_KR_S || 1676 phy_types_low & ICE_PHY_TYPE_LOW_25GBASE_KR1 || 1677 phy_types_low & ICE_PHY_TYPE_LOW_40GBASE_CR4 || 1678 phy_types_low & ICE_PHY_TYPE_LOW_40GBASE_KR4) { 1679 ethtool_link_ksettings_add_link_mode(ks, supported, 1680 Autoneg); 1681 ethtool_link_ksettings_add_link_mode(ks, advertising, 1682 Autoneg); 1683 } 1684 if (phy_types_low & ICE_PHY_TYPE_LOW_50GBASE_CR2 || 1685 phy_types_low & ICE_PHY_TYPE_LOW_50GBASE_KR2 || 1686 phy_types_low & ICE_PHY_TYPE_LOW_50GBASE_CP || 1687 phy_types_low & ICE_PHY_TYPE_LOW_50GBASE_KR_PAM4) { 1688 ethtool_link_ksettings_add_link_mode(ks, supported, 1689 Autoneg); 1690 ethtool_link_ksettings_add_link_mode(ks, advertising, 1691 Autoneg); 1692 } 1693 if (phy_types_low & ICE_PHY_TYPE_LOW_100GBASE_CR4 || 1694 phy_types_low & ICE_PHY_TYPE_LOW_100GBASE_KR4 || 1695 phy_types_low & ICE_PHY_TYPE_LOW_100GBASE_KR_PAM4 || 1696 phy_types_low & ICE_PHY_TYPE_LOW_100GBASE_CP2) { 1697 ethtool_link_ksettings_add_link_mode(ks, supported, 1698 Autoneg); 1699 ethtool_link_ksettings_add_link_mode(ks, advertising, 1700 Autoneg); 1701 } 1702 } 1703 1704 #define TEST_SET_BITS_TIMEOUT 50 1705 #define TEST_SET_BITS_SLEEP_MAX 2000 1706 #define TEST_SET_BITS_SLEEP_MIN 1000 1707 1708 /** 1709 * ice_get_settings_link_up - Get Link settings for when link is up 1710 * @ks: ethtool ksettings to fill in 1711 * @netdev: network interface device structure 1712 */ 1713 static void 1714 ice_get_settings_link_up(struct ethtool_link_ksettings *ks, 1715 struct net_device *netdev) 1716 { 1717 struct ice_netdev_priv *np = netdev_priv(netdev); 1718 struct ice_port_info *pi = np->vsi->port_info; 1719 struct ice_link_status *link_info; 1720 struct ice_vsi *vsi = np->vsi; 1721 1722 link_info = &vsi->port_info->phy.link_info; 1723 1724 /* Get supported and advertised settings from PHY ability with media */ 1725 ice_phy_type_to_ethtool(netdev, ks); 1726 1727 switch (link_info->link_speed) { 1728 case ICE_AQ_LINK_SPEED_100GB: 1729 ks->base.speed = SPEED_100000; 1730 break; 1731 case ICE_AQ_LINK_SPEED_50GB: 1732 ks->base.speed = SPEED_50000; 1733 break; 1734 case ICE_AQ_LINK_SPEED_40GB: 1735 ks->base.speed = SPEED_40000; 1736 break; 1737 case ICE_AQ_LINK_SPEED_25GB: 1738 ks->base.speed = SPEED_25000; 1739 break; 1740 case ICE_AQ_LINK_SPEED_20GB: 1741 ks->base.speed = SPEED_20000; 1742 break; 1743 case ICE_AQ_LINK_SPEED_10GB: 1744 ks->base.speed = SPEED_10000; 1745 break; 1746 case ICE_AQ_LINK_SPEED_5GB: 1747 ks->base.speed = SPEED_5000; 1748 break; 1749 case ICE_AQ_LINK_SPEED_2500MB: 1750 ks->base.speed = SPEED_2500; 1751 break; 1752 case ICE_AQ_LINK_SPEED_1000MB: 1753 ks->base.speed = SPEED_1000; 1754 break; 1755 case ICE_AQ_LINK_SPEED_100MB: 1756 ks->base.speed = SPEED_100; 1757 break; 1758 default: 1759 netdev_info(netdev, "WARNING: Unrecognized link_speed (0x%x).\n", 1760 link_info->link_speed); 1761 break; 1762 } 1763 ks->base.duplex = DUPLEX_FULL; 1764 1765 if (link_info->an_info & ICE_AQ_AN_COMPLETED) 1766 ethtool_link_ksettings_add_link_mode(ks, lp_advertising, 1767 Autoneg); 1768 1769 /* Set flow control negotiated Rx/Tx pause */ 1770 switch (pi->fc.current_mode) { 1771 case ICE_FC_FULL: 1772 ethtool_link_ksettings_add_link_mode(ks, lp_advertising, Pause); 1773 break; 1774 case ICE_FC_TX_PAUSE: 1775 ethtool_link_ksettings_add_link_mode(ks, lp_advertising, Pause); 1776 ethtool_link_ksettings_add_link_mode(ks, lp_advertising, 1777 Asym_Pause); 1778 break; 1779 case ICE_FC_RX_PAUSE: 1780 ethtool_link_ksettings_add_link_mode(ks, lp_advertising, 1781 Asym_Pause); 1782 break; 1783 case ICE_FC_PFC: 1784 default: 1785 ethtool_link_ksettings_del_link_mode(ks, lp_advertising, Pause); 1786 ethtool_link_ksettings_del_link_mode(ks, lp_advertising, 1787 Asym_Pause); 1788 break; 1789 } 1790 } 1791 1792 /** 1793 * ice_get_settings_link_down - Get the Link settings when link is down 1794 * @ks: ethtool ksettings to fill in 1795 * @netdev: network interface device structure 1796 * 1797 * Reports link settings that can be determined when link is down 1798 */ 1799 static void 1800 ice_get_settings_link_down(struct ethtool_link_ksettings *ks, 1801 struct net_device *netdev) 1802 { 1803 /* link is down and the driver needs to fall back on 1804 * supported PHY types to figure out what info to display 1805 */ 1806 ice_phy_type_to_ethtool(netdev, ks); 1807 1808 /* With no link, speed and duplex are unknown */ 1809 ks->base.speed = SPEED_UNKNOWN; 1810 ks->base.duplex = DUPLEX_UNKNOWN; 1811 } 1812 1813 /** 1814 * ice_get_link_ksettings - Get Link Speed and Duplex settings 1815 * @netdev: network interface device structure 1816 * @ks: ethtool ksettings 1817 * 1818 * Reports speed/duplex settings based on media_type 1819 */ 1820 static int 1821 ice_get_link_ksettings(struct net_device *netdev, 1822 struct ethtool_link_ksettings *ks) 1823 { 1824 struct ice_netdev_priv *np = netdev_priv(netdev); 1825 struct ice_aqc_get_phy_caps_data *caps; 1826 struct ice_link_status *hw_link_info; 1827 struct ice_vsi *vsi = np->vsi; 1828 enum ice_status status; 1829 int err = 0; 1830 1831 ethtool_link_ksettings_zero_link_mode(ks, supported); 1832 ethtool_link_ksettings_zero_link_mode(ks, advertising); 1833 ethtool_link_ksettings_zero_link_mode(ks, lp_advertising); 1834 hw_link_info = &vsi->port_info->phy.link_info; 1835 1836 /* set speed and duplex */ 1837 if (hw_link_info->link_info & ICE_AQ_LINK_UP) 1838 ice_get_settings_link_up(ks, netdev); 1839 else 1840 ice_get_settings_link_down(ks, netdev); 1841 1842 /* set autoneg settings */ 1843 ks->base.autoneg = (hw_link_info->an_info & ICE_AQ_AN_COMPLETED) ? 1844 AUTONEG_ENABLE : AUTONEG_DISABLE; 1845 1846 /* set media type settings */ 1847 switch (vsi->port_info->phy.media_type) { 1848 case ICE_MEDIA_FIBER: 1849 ethtool_link_ksettings_add_link_mode(ks, supported, FIBRE); 1850 ks->base.port = PORT_FIBRE; 1851 break; 1852 case ICE_MEDIA_BASET: 1853 ethtool_link_ksettings_add_link_mode(ks, supported, TP); 1854 ethtool_link_ksettings_add_link_mode(ks, advertising, TP); 1855 ks->base.port = PORT_TP; 1856 break; 1857 case ICE_MEDIA_BACKPLANE: 1858 ethtool_link_ksettings_add_link_mode(ks, supported, Autoneg); 1859 ethtool_link_ksettings_add_link_mode(ks, supported, Backplane); 1860 ethtool_link_ksettings_add_link_mode(ks, advertising, Autoneg); 1861 ethtool_link_ksettings_add_link_mode(ks, advertising, 1862 Backplane); 1863 ks->base.port = PORT_NONE; 1864 break; 1865 case ICE_MEDIA_DA: 1866 ethtool_link_ksettings_add_link_mode(ks, supported, FIBRE); 1867 ethtool_link_ksettings_add_link_mode(ks, advertising, FIBRE); 1868 ks->base.port = PORT_DA; 1869 break; 1870 default: 1871 ks->base.port = PORT_OTHER; 1872 break; 1873 } 1874 1875 /* flow control is symmetric and always supported */ 1876 ethtool_link_ksettings_add_link_mode(ks, supported, Pause); 1877 1878 caps = kzalloc(sizeof(*caps), GFP_KERNEL); 1879 if (!caps) 1880 return -ENOMEM; 1881 1882 status = ice_aq_get_phy_caps(vsi->port_info, false, 1883 ICE_AQC_REPORT_SW_CFG, caps, NULL); 1884 if (status) { 1885 err = -EIO; 1886 goto done; 1887 } 1888 1889 /* Set the advertised flow control based on the PHY capability */ 1890 if ((caps->caps & ICE_AQC_PHY_EN_TX_LINK_PAUSE) && 1891 (caps->caps & ICE_AQC_PHY_EN_RX_LINK_PAUSE)) { 1892 ethtool_link_ksettings_add_link_mode(ks, advertising, Pause); 1893 ethtool_link_ksettings_add_link_mode(ks, advertising, 1894 Asym_Pause); 1895 } else if (caps->caps & ICE_AQC_PHY_EN_TX_LINK_PAUSE) { 1896 ethtool_link_ksettings_add_link_mode(ks, advertising, 1897 Asym_Pause); 1898 } else if (caps->caps & ICE_AQC_PHY_EN_RX_LINK_PAUSE) { 1899 ethtool_link_ksettings_add_link_mode(ks, advertising, Pause); 1900 ethtool_link_ksettings_add_link_mode(ks, advertising, 1901 Asym_Pause); 1902 } else { 1903 ethtool_link_ksettings_del_link_mode(ks, advertising, Pause); 1904 ethtool_link_ksettings_del_link_mode(ks, advertising, 1905 Asym_Pause); 1906 } 1907 1908 /* Set advertised FEC modes based on PHY capability */ 1909 ethtool_link_ksettings_add_link_mode(ks, advertising, FEC_NONE); 1910 1911 if (caps->link_fec_options & ICE_AQC_PHY_FEC_10G_KR_40G_KR4_REQ || 1912 caps->link_fec_options & ICE_AQC_PHY_FEC_25G_KR_REQ) 1913 ethtool_link_ksettings_add_link_mode(ks, advertising, 1914 FEC_BASER); 1915 if (caps->link_fec_options & ICE_AQC_PHY_FEC_25G_RS_528_REQ || 1916 caps->link_fec_options & ICE_AQC_PHY_FEC_25G_RS_544_REQ) 1917 ethtool_link_ksettings_add_link_mode(ks, advertising, FEC_RS); 1918 1919 status = ice_aq_get_phy_caps(vsi->port_info, false, 1920 ICE_AQC_REPORT_TOPO_CAP, caps, NULL); 1921 if (status) { 1922 err = -EIO; 1923 goto done; 1924 } 1925 1926 /* Set supported FEC modes based on PHY capability */ 1927 ethtool_link_ksettings_add_link_mode(ks, supported, FEC_NONE); 1928 1929 if (caps->link_fec_options & ICE_AQC_PHY_FEC_10G_KR_40G_KR4_EN || 1930 caps->link_fec_options & ICE_AQC_PHY_FEC_25G_KR_CLAUSE74_EN) 1931 ethtool_link_ksettings_add_link_mode(ks, supported, FEC_BASER); 1932 if (caps->link_fec_options & ICE_AQC_PHY_FEC_25G_RS_CLAUSE91_EN) 1933 ethtool_link_ksettings_add_link_mode(ks, supported, FEC_RS); 1934 1935 done: 1936 kfree(caps); 1937 return err; 1938 } 1939 1940 /** 1941 * ice_ksettings_find_adv_link_speed - Find advertising link speed 1942 * @ks: ethtool ksettings 1943 */ 1944 static u16 1945 ice_ksettings_find_adv_link_speed(const struct ethtool_link_ksettings *ks) 1946 { 1947 u16 adv_link_speed = 0; 1948 1949 if (ethtool_link_ksettings_test_link_mode(ks, advertising, 1950 100baseT_Full)) 1951 adv_link_speed |= ICE_AQ_LINK_SPEED_100MB; 1952 if (ethtool_link_ksettings_test_link_mode(ks, advertising, 1953 1000baseX_Full)) 1954 adv_link_speed |= ICE_AQ_LINK_SPEED_1000MB; 1955 if (ethtool_link_ksettings_test_link_mode(ks, advertising, 1956 1000baseT_Full) || 1957 ethtool_link_ksettings_test_link_mode(ks, advertising, 1958 1000baseKX_Full)) 1959 adv_link_speed |= ICE_AQ_LINK_SPEED_1000MB; 1960 if (ethtool_link_ksettings_test_link_mode(ks, advertising, 1961 2500baseT_Full)) 1962 adv_link_speed |= ICE_AQ_LINK_SPEED_2500MB; 1963 if (ethtool_link_ksettings_test_link_mode(ks, advertising, 1964 2500baseX_Full)) 1965 adv_link_speed |= ICE_AQ_LINK_SPEED_2500MB; 1966 if (ethtool_link_ksettings_test_link_mode(ks, advertising, 1967 5000baseT_Full)) 1968 adv_link_speed |= ICE_AQ_LINK_SPEED_5GB; 1969 if (ethtool_link_ksettings_test_link_mode(ks, advertising, 1970 10000baseT_Full) || 1971 ethtool_link_ksettings_test_link_mode(ks, advertising, 1972 10000baseKR_Full)) 1973 adv_link_speed |= ICE_AQ_LINK_SPEED_10GB; 1974 if (ethtool_link_ksettings_test_link_mode(ks, advertising, 1975 10000baseSR_Full) || 1976 ethtool_link_ksettings_test_link_mode(ks, advertising, 1977 10000baseLR_Full)) 1978 adv_link_speed |= ICE_AQ_LINK_SPEED_10GB; 1979 if (ethtool_link_ksettings_test_link_mode(ks, advertising, 1980 25000baseCR_Full) || 1981 ethtool_link_ksettings_test_link_mode(ks, advertising, 1982 25000baseSR_Full) || 1983 ethtool_link_ksettings_test_link_mode(ks, advertising, 1984 25000baseKR_Full)) 1985 adv_link_speed |= ICE_AQ_LINK_SPEED_25GB; 1986 if (ethtool_link_ksettings_test_link_mode(ks, advertising, 1987 40000baseCR4_Full) || 1988 ethtool_link_ksettings_test_link_mode(ks, advertising, 1989 40000baseSR4_Full) || 1990 ethtool_link_ksettings_test_link_mode(ks, advertising, 1991 40000baseLR4_Full) || 1992 ethtool_link_ksettings_test_link_mode(ks, advertising, 1993 40000baseKR4_Full)) 1994 adv_link_speed |= ICE_AQ_LINK_SPEED_40GB; 1995 if (ethtool_link_ksettings_test_link_mode(ks, advertising, 1996 50000baseCR2_Full) || 1997 ethtool_link_ksettings_test_link_mode(ks, advertising, 1998 50000baseKR2_Full)) 1999 adv_link_speed |= ICE_AQ_LINK_SPEED_50GB; 2000 if (ethtool_link_ksettings_test_link_mode(ks, advertising, 2001 50000baseSR2_Full)) 2002 adv_link_speed |= ICE_AQ_LINK_SPEED_50GB; 2003 if (ethtool_link_ksettings_test_link_mode(ks, advertising, 2004 100000baseCR4_Full) || 2005 ethtool_link_ksettings_test_link_mode(ks, advertising, 2006 100000baseSR4_Full) || 2007 ethtool_link_ksettings_test_link_mode(ks, advertising, 2008 100000baseLR4_ER4_Full) || 2009 ethtool_link_ksettings_test_link_mode(ks, advertising, 2010 100000baseKR4_Full)) 2011 adv_link_speed |= ICE_AQ_LINK_SPEED_100GB; 2012 2013 return adv_link_speed; 2014 } 2015 2016 /** 2017 * ice_setup_autoneg 2018 * @p: port info 2019 * @ks: ethtool_link_ksettings 2020 * @config: configuration that will be sent down to FW 2021 * @autoneg_enabled: autonegotiation is enabled or not 2022 * @autoneg_changed: will there a change in autonegotiation 2023 * @netdev: network interface device structure 2024 * 2025 * Setup PHY autonegotiation feature 2026 */ 2027 static int 2028 ice_setup_autoneg(struct ice_port_info *p, struct ethtool_link_ksettings *ks, 2029 struct ice_aqc_set_phy_cfg_data *config, 2030 u8 autoneg_enabled, u8 *autoneg_changed, 2031 struct net_device *netdev) 2032 { 2033 int err = 0; 2034 2035 *autoneg_changed = 0; 2036 2037 /* Check autoneg */ 2038 if (autoneg_enabled == AUTONEG_ENABLE) { 2039 /* If autoneg was not already enabled */ 2040 if (!(p->phy.link_info.an_info & ICE_AQ_AN_COMPLETED)) { 2041 /* If autoneg is not supported, return error */ 2042 if (!ethtool_link_ksettings_test_link_mode(ks, 2043 supported, 2044 Autoneg)) { 2045 netdev_info(netdev, "Autoneg not supported on this phy.\n"); 2046 err = -EINVAL; 2047 } else { 2048 /* Autoneg is allowed to change */ 2049 config->caps |= ICE_AQ_PHY_ENA_AUTO_LINK_UPDT; 2050 *autoneg_changed = 1; 2051 } 2052 } 2053 } else { 2054 /* If autoneg is currently enabled */ 2055 if (p->phy.link_info.an_info & ICE_AQ_AN_COMPLETED) { 2056 /* If autoneg is supported 10GBASE_T is the only PHY 2057 * that can disable it, so otherwise return error 2058 */ 2059 if (ethtool_link_ksettings_test_link_mode(ks, 2060 supported, 2061 Autoneg)) { 2062 netdev_info(netdev, "Autoneg cannot be disabled on this phy\n"); 2063 err = -EINVAL; 2064 } else { 2065 /* Autoneg is allowed to change */ 2066 config->caps &= ~ICE_AQ_PHY_ENA_AUTO_LINK_UPDT; 2067 *autoneg_changed = 1; 2068 } 2069 } 2070 } 2071 2072 return err; 2073 } 2074 2075 /** 2076 * ice_set_link_ksettings - Set Speed and Duplex 2077 * @netdev: network interface device structure 2078 * @ks: ethtool ksettings 2079 * 2080 * Set speed/duplex per media_types advertised/forced 2081 */ 2082 static int 2083 ice_set_link_ksettings(struct net_device *netdev, 2084 const struct ethtool_link_ksettings *ks) 2085 { 2086 u8 autoneg, timeout = TEST_SET_BITS_TIMEOUT, lport = 0; 2087 struct ice_netdev_priv *np = netdev_priv(netdev); 2088 struct ethtool_link_ksettings safe_ks, copy_ks; 2089 struct ice_aqc_get_phy_caps_data *abilities; 2090 u16 adv_link_speed, curr_link_speed, idx; 2091 struct ice_aqc_set_phy_cfg_data config; 2092 struct ice_pf *pf = np->vsi->back; 2093 struct ice_port_info *p; 2094 u8 autoneg_changed = 0; 2095 enum ice_status status; 2096 u64 phy_type_high; 2097 u64 phy_type_low; 2098 int err = 0; 2099 bool linkup; 2100 2101 p = np->vsi->port_info; 2102 2103 if (!p) 2104 return -EOPNOTSUPP; 2105 2106 /* Check if this is LAN VSI */ 2107 ice_for_each_vsi(pf, idx) 2108 if (pf->vsi[idx]->type == ICE_VSI_PF) { 2109 if (np->vsi != pf->vsi[idx]) 2110 return -EOPNOTSUPP; 2111 break; 2112 } 2113 2114 if (p->phy.media_type != ICE_MEDIA_BASET && 2115 p->phy.media_type != ICE_MEDIA_FIBER && 2116 p->phy.media_type != ICE_MEDIA_BACKPLANE && 2117 p->phy.media_type != ICE_MEDIA_DA && 2118 p->phy.link_info.link_info & ICE_AQ_LINK_UP) 2119 return -EOPNOTSUPP; 2120 2121 /* copy the ksettings to copy_ks to avoid modifying the original */ 2122 memcpy(©_ks, ks, sizeof(copy_ks)); 2123 2124 /* save autoneg out of ksettings */ 2125 autoneg = copy_ks.base.autoneg; 2126 2127 memset(&safe_ks, 0, sizeof(safe_ks)); 2128 2129 /* Get link modes supported by hardware.*/ 2130 ice_phy_type_to_ethtool(netdev, &safe_ks); 2131 2132 /* and check against modes requested by user. 2133 * Return an error if unsupported mode was set. 2134 */ 2135 if (!bitmap_subset(copy_ks.link_modes.advertising, 2136 safe_ks.link_modes.supported, 2137 __ETHTOOL_LINK_MODE_MASK_NBITS)) 2138 return -EINVAL; 2139 2140 /* get our own copy of the bits to check against */ 2141 memset(&safe_ks, 0, sizeof(safe_ks)); 2142 safe_ks.base.cmd = copy_ks.base.cmd; 2143 safe_ks.base.link_mode_masks_nwords = 2144 copy_ks.base.link_mode_masks_nwords; 2145 ice_get_link_ksettings(netdev, &safe_ks); 2146 2147 /* set autoneg back to what it currently is */ 2148 copy_ks.base.autoneg = safe_ks.base.autoneg; 2149 /* we don't compare the speed */ 2150 copy_ks.base.speed = safe_ks.base.speed; 2151 2152 /* If copy_ks.base and safe_ks.base are not the same now, then they are 2153 * trying to set something that we do not support. 2154 */ 2155 if (memcmp(©_ks.base, &safe_ks.base, sizeof(copy_ks.base))) 2156 return -EOPNOTSUPP; 2157 2158 while (test_and_set_bit(__ICE_CFG_BUSY, pf->state)) { 2159 timeout--; 2160 if (!timeout) 2161 return -EBUSY; 2162 usleep_range(TEST_SET_BITS_SLEEP_MIN, TEST_SET_BITS_SLEEP_MAX); 2163 } 2164 2165 abilities = kzalloc(sizeof(*abilities), GFP_KERNEL); 2166 if (!abilities) 2167 return -ENOMEM; 2168 2169 /* Get the current PHY config */ 2170 status = ice_aq_get_phy_caps(p, false, ICE_AQC_REPORT_SW_CFG, abilities, 2171 NULL); 2172 if (status) { 2173 err = -EAGAIN; 2174 goto done; 2175 } 2176 2177 /* Copy abilities to config in case autoneg is not set below */ 2178 memset(&config, 0, sizeof(config)); 2179 config.caps = abilities->caps & ~ICE_AQC_PHY_AN_MODE; 2180 if (abilities->caps & ICE_AQC_PHY_AN_MODE) 2181 config.caps |= ICE_AQ_PHY_ENA_AUTO_LINK_UPDT; 2182 2183 /* Check autoneg */ 2184 err = ice_setup_autoneg(p, &safe_ks, &config, autoneg, &autoneg_changed, 2185 netdev); 2186 2187 if (err) 2188 goto done; 2189 2190 /* Call to get the current link speed */ 2191 p->phy.get_link_info = true; 2192 status = ice_get_link_status(p, &linkup); 2193 if (status) { 2194 err = -EAGAIN; 2195 goto done; 2196 } 2197 2198 curr_link_speed = p->phy.link_info.link_speed; 2199 adv_link_speed = ice_ksettings_find_adv_link_speed(ks); 2200 2201 /* If speed didn't get set, set it to what it currently is. 2202 * This is needed because if advertise is 0 (as it is when autoneg 2203 * is disabled) then speed won't get set. 2204 */ 2205 if (!adv_link_speed) 2206 adv_link_speed = curr_link_speed; 2207 2208 /* Convert the advertise link speeds to their corresponded PHY_TYPE */ 2209 ice_update_phy_type(&phy_type_low, &phy_type_high, adv_link_speed); 2210 2211 if (!autoneg_changed && adv_link_speed == curr_link_speed) { 2212 netdev_info(netdev, "Nothing changed, exiting without setting anything.\n"); 2213 goto done; 2214 } 2215 2216 /* copy over the rest of the abilities */ 2217 config.low_power_ctrl = abilities->low_power_ctrl; 2218 config.eee_cap = abilities->eee_cap; 2219 config.eeer_value = abilities->eeer_value; 2220 config.link_fec_opt = abilities->link_fec_options; 2221 2222 /* save the requested speeds */ 2223 p->phy.link_info.req_speeds = adv_link_speed; 2224 2225 /* set link and auto negotiation so changes take effect */ 2226 config.caps |= ICE_AQ_PHY_ENA_LINK; 2227 2228 if (phy_type_low || phy_type_high) { 2229 config.phy_type_high = cpu_to_le64(phy_type_high) & 2230 abilities->phy_type_high; 2231 config.phy_type_low = cpu_to_le64(phy_type_low) & 2232 abilities->phy_type_low; 2233 } else { 2234 err = -EAGAIN; 2235 netdev_info(netdev, "Nothing changed. No PHY_TYPE is corresponded to advertised link speed.\n"); 2236 goto done; 2237 } 2238 2239 /* If link is up put link down */ 2240 if (p->phy.link_info.link_info & ICE_AQ_LINK_UP) { 2241 /* Tell the OS link is going down, the link will go 2242 * back up when fw says it is ready asynchronously 2243 */ 2244 ice_print_link_msg(np->vsi, false); 2245 netif_carrier_off(netdev); 2246 netif_tx_stop_all_queues(netdev); 2247 } 2248 2249 /* make the aq call */ 2250 status = ice_aq_set_phy_cfg(&pf->hw, lport, &config, NULL); 2251 if (status) { 2252 netdev_info(netdev, "Set phy config failed,\n"); 2253 err = -EAGAIN; 2254 } 2255 2256 done: 2257 kfree(abilities); 2258 clear_bit(__ICE_CFG_BUSY, pf->state); 2259 2260 return err; 2261 } 2262 2263 /** 2264 * ice_parse_hdrs - parses headers from RSS hash input 2265 * @nfc: ethtool rxnfc command 2266 * 2267 * This function parses the rxnfc command and returns intended 2268 * header types for RSS configuration 2269 */ 2270 static u32 ice_parse_hdrs(struct ethtool_rxnfc *nfc) 2271 { 2272 u32 hdrs = ICE_FLOW_SEG_HDR_NONE; 2273 2274 switch (nfc->flow_type) { 2275 case TCP_V4_FLOW: 2276 hdrs |= ICE_FLOW_SEG_HDR_TCP | ICE_FLOW_SEG_HDR_IPV4; 2277 break; 2278 case UDP_V4_FLOW: 2279 hdrs |= ICE_FLOW_SEG_HDR_UDP | ICE_FLOW_SEG_HDR_IPV4; 2280 break; 2281 case SCTP_V4_FLOW: 2282 hdrs |= ICE_FLOW_SEG_HDR_SCTP | ICE_FLOW_SEG_HDR_IPV4; 2283 break; 2284 case TCP_V6_FLOW: 2285 hdrs |= ICE_FLOW_SEG_HDR_TCP | ICE_FLOW_SEG_HDR_IPV6; 2286 break; 2287 case UDP_V6_FLOW: 2288 hdrs |= ICE_FLOW_SEG_HDR_UDP | ICE_FLOW_SEG_HDR_IPV6; 2289 break; 2290 case SCTP_V6_FLOW: 2291 hdrs |= ICE_FLOW_SEG_HDR_SCTP | ICE_FLOW_SEG_HDR_IPV6; 2292 break; 2293 default: 2294 break; 2295 } 2296 return hdrs; 2297 } 2298 2299 #define ICE_FLOW_HASH_FLD_IPV4_SA BIT_ULL(ICE_FLOW_FIELD_IDX_IPV4_SA) 2300 #define ICE_FLOW_HASH_FLD_IPV6_SA BIT_ULL(ICE_FLOW_FIELD_IDX_IPV6_SA) 2301 #define ICE_FLOW_HASH_FLD_IPV4_DA BIT_ULL(ICE_FLOW_FIELD_IDX_IPV4_DA) 2302 #define ICE_FLOW_HASH_FLD_IPV6_DA BIT_ULL(ICE_FLOW_FIELD_IDX_IPV6_DA) 2303 #define ICE_FLOW_HASH_FLD_TCP_SRC_PORT BIT_ULL(ICE_FLOW_FIELD_IDX_TCP_SRC_PORT) 2304 #define ICE_FLOW_HASH_FLD_TCP_DST_PORT BIT_ULL(ICE_FLOW_FIELD_IDX_TCP_DST_PORT) 2305 #define ICE_FLOW_HASH_FLD_UDP_SRC_PORT BIT_ULL(ICE_FLOW_FIELD_IDX_UDP_SRC_PORT) 2306 #define ICE_FLOW_HASH_FLD_UDP_DST_PORT BIT_ULL(ICE_FLOW_FIELD_IDX_UDP_DST_PORT) 2307 #define ICE_FLOW_HASH_FLD_SCTP_SRC_PORT \ 2308 BIT_ULL(ICE_FLOW_FIELD_IDX_SCTP_SRC_PORT) 2309 #define ICE_FLOW_HASH_FLD_SCTP_DST_PORT \ 2310 BIT_ULL(ICE_FLOW_FIELD_IDX_SCTP_DST_PORT) 2311 2312 /** 2313 * ice_parse_hash_flds - parses hash fields from RSS hash input 2314 * @nfc: ethtool rxnfc command 2315 * 2316 * This function parses the rxnfc command and returns intended 2317 * hash fields for RSS configuration 2318 */ 2319 static u64 ice_parse_hash_flds(struct ethtool_rxnfc *nfc) 2320 { 2321 u64 hfld = ICE_HASH_INVALID; 2322 2323 if (nfc->data & RXH_IP_SRC || nfc->data & RXH_IP_DST) { 2324 switch (nfc->flow_type) { 2325 case TCP_V4_FLOW: 2326 case UDP_V4_FLOW: 2327 case SCTP_V4_FLOW: 2328 if (nfc->data & RXH_IP_SRC) 2329 hfld |= ICE_FLOW_HASH_FLD_IPV4_SA; 2330 if (nfc->data & RXH_IP_DST) 2331 hfld |= ICE_FLOW_HASH_FLD_IPV4_DA; 2332 break; 2333 case TCP_V6_FLOW: 2334 case UDP_V6_FLOW: 2335 case SCTP_V6_FLOW: 2336 if (nfc->data & RXH_IP_SRC) 2337 hfld |= ICE_FLOW_HASH_FLD_IPV6_SA; 2338 if (nfc->data & RXH_IP_DST) 2339 hfld |= ICE_FLOW_HASH_FLD_IPV6_DA; 2340 break; 2341 default: 2342 break; 2343 } 2344 } 2345 2346 if (nfc->data & RXH_L4_B_0_1 || nfc->data & RXH_L4_B_2_3) { 2347 switch (nfc->flow_type) { 2348 case TCP_V4_FLOW: 2349 case TCP_V6_FLOW: 2350 if (nfc->data & RXH_L4_B_0_1) 2351 hfld |= ICE_FLOW_HASH_FLD_TCP_SRC_PORT; 2352 if (nfc->data & RXH_L4_B_2_3) 2353 hfld |= ICE_FLOW_HASH_FLD_TCP_DST_PORT; 2354 break; 2355 case UDP_V4_FLOW: 2356 case UDP_V6_FLOW: 2357 if (nfc->data & RXH_L4_B_0_1) 2358 hfld |= ICE_FLOW_HASH_FLD_UDP_SRC_PORT; 2359 if (nfc->data & RXH_L4_B_2_3) 2360 hfld |= ICE_FLOW_HASH_FLD_UDP_DST_PORT; 2361 break; 2362 case SCTP_V4_FLOW: 2363 case SCTP_V6_FLOW: 2364 if (nfc->data & RXH_L4_B_0_1) 2365 hfld |= ICE_FLOW_HASH_FLD_SCTP_SRC_PORT; 2366 if (nfc->data & RXH_L4_B_2_3) 2367 hfld |= ICE_FLOW_HASH_FLD_SCTP_DST_PORT; 2368 break; 2369 default: 2370 break; 2371 } 2372 } 2373 2374 return hfld; 2375 } 2376 2377 /** 2378 * ice_set_rss_hash_opt - Enable/Disable flow types for RSS hash 2379 * @vsi: the VSI being configured 2380 * @nfc: ethtool rxnfc command 2381 * 2382 * Returns Success if the flow input set is supported. 2383 */ 2384 static int 2385 ice_set_rss_hash_opt(struct ice_vsi *vsi, struct ethtool_rxnfc *nfc) 2386 { 2387 struct ice_pf *pf = vsi->back; 2388 enum ice_status status; 2389 struct device *dev; 2390 u64 hashed_flds; 2391 u32 hdrs; 2392 2393 dev = ice_pf_to_dev(pf); 2394 if (ice_is_safe_mode(pf)) { 2395 dev_dbg(dev, "Advanced RSS disabled. Package download failed, vsi num = %d\n", 2396 vsi->vsi_num); 2397 return -EINVAL; 2398 } 2399 2400 hashed_flds = ice_parse_hash_flds(nfc); 2401 if (hashed_flds == ICE_HASH_INVALID) { 2402 dev_dbg(dev, "Invalid hash fields, vsi num = %d\n", 2403 vsi->vsi_num); 2404 return -EINVAL; 2405 } 2406 2407 hdrs = ice_parse_hdrs(nfc); 2408 if (hdrs == ICE_FLOW_SEG_HDR_NONE) { 2409 dev_dbg(dev, "Header type is not valid, vsi num = %d\n", 2410 vsi->vsi_num); 2411 return -EINVAL; 2412 } 2413 2414 status = ice_add_rss_cfg(&pf->hw, vsi->idx, hashed_flds, hdrs); 2415 if (status) { 2416 dev_dbg(dev, "ice_add_rss_cfg failed, vsi num = %d, error = %d\n", 2417 vsi->vsi_num, status); 2418 return -EINVAL; 2419 } 2420 2421 return 0; 2422 } 2423 2424 /** 2425 * ice_get_rss_hash_opt - Retrieve hash fields for a given flow-type 2426 * @vsi: the VSI being configured 2427 * @nfc: ethtool rxnfc command 2428 */ 2429 static void 2430 ice_get_rss_hash_opt(struct ice_vsi *vsi, struct ethtool_rxnfc *nfc) 2431 { 2432 struct ice_pf *pf = vsi->back; 2433 struct device *dev; 2434 u64 hash_flds; 2435 u32 hdrs; 2436 2437 dev = ice_pf_to_dev(pf); 2438 2439 nfc->data = 0; 2440 if (ice_is_safe_mode(pf)) { 2441 dev_dbg(dev, "Advanced RSS disabled. Package download failed, vsi num = %d\n", 2442 vsi->vsi_num); 2443 return; 2444 } 2445 2446 hdrs = ice_parse_hdrs(nfc); 2447 if (hdrs == ICE_FLOW_SEG_HDR_NONE) { 2448 dev_dbg(dev, "Header type is not valid, vsi num = %d\n", 2449 vsi->vsi_num); 2450 return; 2451 } 2452 2453 hash_flds = ice_get_rss_cfg(&pf->hw, vsi->idx, hdrs); 2454 if (hash_flds == ICE_HASH_INVALID) { 2455 dev_dbg(dev, "No hash fields found for the given header type, vsi num = %d\n", 2456 vsi->vsi_num); 2457 return; 2458 } 2459 2460 if (hash_flds & ICE_FLOW_HASH_FLD_IPV4_SA || 2461 hash_flds & ICE_FLOW_HASH_FLD_IPV6_SA) 2462 nfc->data |= (u64)RXH_IP_SRC; 2463 2464 if (hash_flds & ICE_FLOW_HASH_FLD_IPV4_DA || 2465 hash_flds & ICE_FLOW_HASH_FLD_IPV6_DA) 2466 nfc->data |= (u64)RXH_IP_DST; 2467 2468 if (hash_flds & ICE_FLOW_HASH_FLD_TCP_SRC_PORT || 2469 hash_flds & ICE_FLOW_HASH_FLD_UDP_SRC_PORT || 2470 hash_flds & ICE_FLOW_HASH_FLD_SCTP_SRC_PORT) 2471 nfc->data |= (u64)RXH_L4_B_0_1; 2472 2473 if (hash_flds & ICE_FLOW_HASH_FLD_TCP_DST_PORT || 2474 hash_flds & ICE_FLOW_HASH_FLD_UDP_DST_PORT || 2475 hash_flds & ICE_FLOW_HASH_FLD_SCTP_DST_PORT) 2476 nfc->data |= (u64)RXH_L4_B_2_3; 2477 } 2478 2479 /** 2480 * ice_set_rxnfc - command to set Rx flow rules. 2481 * @netdev: network interface device structure 2482 * @cmd: ethtool rxnfc command 2483 * 2484 * Returns 0 for success and negative values for errors 2485 */ 2486 static int ice_set_rxnfc(struct net_device *netdev, struct ethtool_rxnfc *cmd) 2487 { 2488 struct ice_netdev_priv *np = netdev_priv(netdev); 2489 struct ice_vsi *vsi = np->vsi; 2490 2491 switch (cmd->cmd) { 2492 case ETHTOOL_SRXFH: 2493 return ice_set_rss_hash_opt(vsi, cmd); 2494 default: 2495 break; 2496 } 2497 return -EOPNOTSUPP; 2498 } 2499 2500 /** 2501 * ice_get_rxnfc - command to get Rx flow classification rules 2502 * @netdev: network interface device structure 2503 * @cmd: ethtool rxnfc command 2504 * @rule_locs: buffer to rturn Rx flow classification rules 2505 * 2506 * Returns Success if the command is supported. 2507 */ 2508 static int 2509 ice_get_rxnfc(struct net_device *netdev, struct ethtool_rxnfc *cmd, 2510 u32 __always_unused *rule_locs) 2511 { 2512 struct ice_netdev_priv *np = netdev_priv(netdev); 2513 struct ice_vsi *vsi = np->vsi; 2514 int ret = -EOPNOTSUPP; 2515 2516 switch (cmd->cmd) { 2517 case ETHTOOL_GRXRINGS: 2518 cmd->data = vsi->rss_size; 2519 ret = 0; 2520 break; 2521 case ETHTOOL_GRXFH: 2522 ice_get_rss_hash_opt(vsi, cmd); 2523 ret = 0; 2524 break; 2525 default: 2526 break; 2527 } 2528 2529 return ret; 2530 } 2531 2532 static void 2533 ice_get_ringparam(struct net_device *netdev, struct ethtool_ringparam *ring) 2534 { 2535 struct ice_netdev_priv *np = netdev_priv(netdev); 2536 struct ice_vsi *vsi = np->vsi; 2537 2538 ring->rx_max_pending = ICE_MAX_NUM_DESC; 2539 ring->tx_max_pending = ICE_MAX_NUM_DESC; 2540 ring->rx_pending = vsi->rx_rings[0]->count; 2541 ring->tx_pending = vsi->tx_rings[0]->count; 2542 2543 /* Rx mini and jumbo rings are not supported */ 2544 ring->rx_mini_max_pending = 0; 2545 ring->rx_jumbo_max_pending = 0; 2546 ring->rx_mini_pending = 0; 2547 ring->rx_jumbo_pending = 0; 2548 } 2549 2550 static int 2551 ice_set_ringparam(struct net_device *netdev, struct ethtool_ringparam *ring) 2552 { 2553 struct ice_ring *tx_rings = NULL, *rx_rings = NULL; 2554 struct ice_netdev_priv *np = netdev_priv(netdev); 2555 struct ice_ring *xdp_rings = NULL; 2556 struct ice_vsi *vsi = np->vsi; 2557 struct ice_pf *pf = vsi->back; 2558 int i, timeout = 50, err = 0; 2559 u32 new_rx_cnt, new_tx_cnt; 2560 2561 if (ring->tx_pending > ICE_MAX_NUM_DESC || 2562 ring->tx_pending < ICE_MIN_NUM_DESC || 2563 ring->rx_pending > ICE_MAX_NUM_DESC || 2564 ring->rx_pending < ICE_MIN_NUM_DESC) { 2565 netdev_err(netdev, "Descriptors requested (Tx: %d / Rx: %d) out of range [%d-%d] (increment %d)\n", 2566 ring->tx_pending, ring->rx_pending, 2567 ICE_MIN_NUM_DESC, ICE_MAX_NUM_DESC, 2568 ICE_REQ_DESC_MULTIPLE); 2569 return -EINVAL; 2570 } 2571 2572 new_tx_cnt = ALIGN(ring->tx_pending, ICE_REQ_DESC_MULTIPLE); 2573 if (new_tx_cnt != ring->tx_pending) 2574 netdev_info(netdev, "Requested Tx descriptor count rounded up to %d\n", 2575 new_tx_cnt); 2576 new_rx_cnt = ALIGN(ring->rx_pending, ICE_REQ_DESC_MULTIPLE); 2577 if (new_rx_cnt != ring->rx_pending) 2578 netdev_info(netdev, "Requested Rx descriptor count rounded up to %d\n", 2579 new_rx_cnt); 2580 2581 /* if nothing to do return success */ 2582 if (new_tx_cnt == vsi->tx_rings[0]->count && 2583 new_rx_cnt == vsi->rx_rings[0]->count) { 2584 netdev_dbg(netdev, "Nothing to change, descriptor count is same as requested\n"); 2585 return 0; 2586 } 2587 2588 /* If there is a AF_XDP UMEM attached to any of Rx rings, 2589 * disallow changing the number of descriptors -- regardless 2590 * if the netdev is running or not. 2591 */ 2592 if (ice_xsk_any_rx_ring_ena(vsi)) 2593 return -EBUSY; 2594 2595 while (test_and_set_bit(__ICE_CFG_BUSY, pf->state)) { 2596 timeout--; 2597 if (!timeout) 2598 return -EBUSY; 2599 usleep_range(1000, 2000); 2600 } 2601 2602 /* set for the next time the netdev is started */ 2603 if (!netif_running(vsi->netdev)) { 2604 for (i = 0; i < vsi->alloc_txq; i++) 2605 vsi->tx_rings[i]->count = new_tx_cnt; 2606 for (i = 0; i < vsi->alloc_rxq; i++) 2607 vsi->rx_rings[i]->count = new_rx_cnt; 2608 if (ice_is_xdp_ena_vsi(vsi)) 2609 for (i = 0; i < vsi->num_xdp_txq; i++) 2610 vsi->xdp_rings[i]->count = new_tx_cnt; 2611 vsi->num_tx_desc = new_tx_cnt; 2612 vsi->num_rx_desc = new_rx_cnt; 2613 netdev_dbg(netdev, "Link is down, descriptor count change happens when link is brought up\n"); 2614 goto done; 2615 } 2616 2617 if (new_tx_cnt == vsi->tx_rings[0]->count) 2618 goto process_rx; 2619 2620 /* alloc updated Tx resources */ 2621 netdev_info(netdev, "Changing Tx descriptor count from %d to %d\n", 2622 vsi->tx_rings[0]->count, new_tx_cnt); 2623 2624 tx_rings = kcalloc(vsi->num_txq, sizeof(*tx_rings), GFP_KERNEL); 2625 if (!tx_rings) { 2626 err = -ENOMEM; 2627 goto done; 2628 } 2629 2630 ice_for_each_txq(vsi, i) { 2631 /* clone ring and setup updated count */ 2632 tx_rings[i] = *vsi->tx_rings[i]; 2633 tx_rings[i].count = new_tx_cnt; 2634 tx_rings[i].desc = NULL; 2635 tx_rings[i].tx_buf = NULL; 2636 err = ice_setup_tx_ring(&tx_rings[i]); 2637 if (err) { 2638 while (i--) 2639 ice_clean_tx_ring(&tx_rings[i]); 2640 kfree(tx_rings); 2641 goto done; 2642 } 2643 } 2644 2645 if (!ice_is_xdp_ena_vsi(vsi)) 2646 goto process_rx; 2647 2648 /* alloc updated XDP resources */ 2649 netdev_info(netdev, "Changing XDP descriptor count from %d to %d\n", 2650 vsi->xdp_rings[0]->count, new_tx_cnt); 2651 2652 xdp_rings = kcalloc(vsi->num_xdp_txq, sizeof(*xdp_rings), GFP_KERNEL); 2653 if (!xdp_rings) { 2654 err = -ENOMEM; 2655 goto free_tx; 2656 } 2657 2658 for (i = 0; i < vsi->num_xdp_txq; i++) { 2659 /* clone ring and setup updated count */ 2660 xdp_rings[i] = *vsi->xdp_rings[i]; 2661 xdp_rings[i].count = new_tx_cnt; 2662 xdp_rings[i].desc = NULL; 2663 xdp_rings[i].tx_buf = NULL; 2664 err = ice_setup_tx_ring(&xdp_rings[i]); 2665 if (err) { 2666 while (i--) 2667 ice_clean_tx_ring(&xdp_rings[i]); 2668 kfree(xdp_rings); 2669 goto free_tx; 2670 } 2671 ice_set_ring_xdp(&xdp_rings[i]); 2672 } 2673 2674 process_rx: 2675 if (new_rx_cnt == vsi->rx_rings[0]->count) 2676 goto process_link; 2677 2678 /* alloc updated Rx resources */ 2679 netdev_info(netdev, "Changing Rx descriptor count from %d to %d\n", 2680 vsi->rx_rings[0]->count, new_rx_cnt); 2681 2682 rx_rings = kcalloc(vsi->num_rxq, sizeof(*rx_rings), GFP_KERNEL); 2683 if (!rx_rings) { 2684 err = -ENOMEM; 2685 goto done; 2686 } 2687 2688 ice_for_each_rxq(vsi, i) { 2689 /* clone ring and setup updated count */ 2690 rx_rings[i] = *vsi->rx_rings[i]; 2691 rx_rings[i].count = new_rx_cnt; 2692 rx_rings[i].desc = NULL; 2693 rx_rings[i].rx_buf = NULL; 2694 /* this is to allow wr32 to have something to write to 2695 * during early allocation of Rx buffers 2696 */ 2697 rx_rings[i].tail = vsi->back->hw.hw_addr + PRTGEN_STATUS; 2698 2699 err = ice_setup_rx_ring(&rx_rings[i]); 2700 if (err) 2701 goto rx_unwind; 2702 2703 /* allocate Rx buffers */ 2704 err = ice_alloc_rx_bufs(&rx_rings[i], 2705 ICE_DESC_UNUSED(&rx_rings[i])); 2706 rx_unwind: 2707 if (err) { 2708 while (i) { 2709 i--; 2710 ice_free_rx_ring(&rx_rings[i]); 2711 } 2712 kfree(rx_rings); 2713 err = -ENOMEM; 2714 goto free_tx; 2715 } 2716 } 2717 2718 process_link: 2719 /* Bring interface down, copy in the new ring info, then restore the 2720 * interface. if VSI is up, bring it down and then back up 2721 */ 2722 if (!test_and_set_bit(__ICE_DOWN, vsi->state)) { 2723 ice_down(vsi); 2724 2725 if (tx_rings) { 2726 ice_for_each_txq(vsi, i) { 2727 ice_free_tx_ring(vsi->tx_rings[i]); 2728 *vsi->tx_rings[i] = tx_rings[i]; 2729 } 2730 kfree(tx_rings); 2731 } 2732 2733 if (rx_rings) { 2734 ice_for_each_rxq(vsi, i) { 2735 ice_free_rx_ring(vsi->rx_rings[i]); 2736 /* copy the real tail offset */ 2737 rx_rings[i].tail = vsi->rx_rings[i]->tail; 2738 /* this is to fake out the allocation routine 2739 * into thinking it has to realloc everything 2740 * but the recycling logic will let us re-use 2741 * the buffers allocated above 2742 */ 2743 rx_rings[i].next_to_use = 0; 2744 rx_rings[i].next_to_clean = 0; 2745 rx_rings[i].next_to_alloc = 0; 2746 *vsi->rx_rings[i] = rx_rings[i]; 2747 } 2748 kfree(rx_rings); 2749 } 2750 2751 if (xdp_rings) { 2752 for (i = 0; i < vsi->num_xdp_txq; i++) { 2753 ice_free_tx_ring(vsi->xdp_rings[i]); 2754 *vsi->xdp_rings[i] = xdp_rings[i]; 2755 } 2756 kfree(xdp_rings); 2757 } 2758 2759 vsi->num_tx_desc = new_tx_cnt; 2760 vsi->num_rx_desc = new_rx_cnt; 2761 ice_up(vsi); 2762 } 2763 goto done; 2764 2765 free_tx: 2766 /* error cleanup if the Rx allocations failed after getting Tx */ 2767 if (tx_rings) { 2768 ice_for_each_txq(vsi, i) 2769 ice_free_tx_ring(&tx_rings[i]); 2770 kfree(tx_rings); 2771 } 2772 2773 done: 2774 clear_bit(__ICE_CFG_BUSY, pf->state); 2775 return err; 2776 } 2777 2778 static int ice_nway_reset(struct net_device *netdev) 2779 { 2780 /* restart autonegotiation */ 2781 struct ice_netdev_priv *np = netdev_priv(netdev); 2782 struct ice_vsi *vsi = np->vsi; 2783 struct ice_port_info *pi; 2784 enum ice_status status; 2785 2786 pi = vsi->port_info; 2787 /* If VSI state is up, then restart autoneg with link up */ 2788 if (!test_bit(__ICE_DOWN, vsi->back->state)) 2789 status = ice_aq_set_link_restart_an(pi, true, NULL); 2790 else 2791 status = ice_aq_set_link_restart_an(pi, false, NULL); 2792 2793 if (status) { 2794 netdev_info(netdev, "link restart failed, err %d aq_err %d\n", 2795 status, pi->hw->adminq.sq_last_status); 2796 return -EIO; 2797 } 2798 2799 return 0; 2800 } 2801 2802 /** 2803 * ice_get_pauseparam - Get Flow Control status 2804 * @netdev: network interface device structure 2805 * @pause: ethernet pause (flow control) parameters 2806 * 2807 * Get requested flow control status from PHY capability. 2808 * If autoneg is true, then ethtool will send the ETHTOOL_GSET ioctl which 2809 * is handled by ice_get_link_ksettings. ice_get_link_ksettings will report 2810 * the negotiated Rx/Tx pause via lp_advertising. 2811 */ 2812 static void 2813 ice_get_pauseparam(struct net_device *netdev, struct ethtool_pauseparam *pause) 2814 { 2815 struct ice_netdev_priv *np = netdev_priv(netdev); 2816 struct ice_port_info *pi = np->vsi->port_info; 2817 struct ice_aqc_get_phy_caps_data *pcaps; 2818 struct ice_dcbx_cfg *dcbx_cfg; 2819 enum ice_status status; 2820 2821 /* Initialize pause params */ 2822 pause->rx_pause = 0; 2823 pause->tx_pause = 0; 2824 2825 dcbx_cfg = &pi->local_dcbx_cfg; 2826 2827 pcaps = kzalloc(sizeof(*pcaps), GFP_KERNEL); 2828 if (!pcaps) 2829 return; 2830 2831 /* Get current PHY config */ 2832 status = ice_aq_get_phy_caps(pi, false, ICE_AQC_REPORT_SW_CFG, pcaps, 2833 NULL); 2834 if (status) 2835 goto out; 2836 2837 pause->autoneg = ((pcaps->caps & ICE_AQC_PHY_AN_MODE) ? 2838 AUTONEG_ENABLE : AUTONEG_DISABLE); 2839 2840 if (dcbx_cfg->pfc.pfcena) 2841 /* PFC enabled so report LFC as off */ 2842 goto out; 2843 2844 if (pcaps->caps & ICE_AQC_PHY_EN_TX_LINK_PAUSE) 2845 pause->tx_pause = 1; 2846 if (pcaps->caps & ICE_AQC_PHY_EN_RX_LINK_PAUSE) 2847 pause->rx_pause = 1; 2848 2849 out: 2850 kfree(pcaps); 2851 } 2852 2853 /** 2854 * ice_set_pauseparam - Set Flow Control parameter 2855 * @netdev: network interface device structure 2856 * @pause: return Tx/Rx flow control status 2857 */ 2858 static int 2859 ice_set_pauseparam(struct net_device *netdev, struct ethtool_pauseparam *pause) 2860 { 2861 struct ice_netdev_priv *np = netdev_priv(netdev); 2862 struct ice_aqc_get_phy_caps_data *pcaps; 2863 struct ice_link_status *hw_link_info; 2864 struct ice_pf *pf = np->vsi->back; 2865 struct ice_dcbx_cfg *dcbx_cfg; 2866 struct ice_vsi *vsi = np->vsi; 2867 struct ice_hw *hw = &pf->hw; 2868 struct ice_port_info *pi; 2869 enum ice_status status; 2870 u8 aq_failures; 2871 bool link_up; 2872 int err = 0; 2873 u32 is_an; 2874 2875 pi = vsi->port_info; 2876 hw_link_info = &pi->phy.link_info; 2877 dcbx_cfg = &pi->local_dcbx_cfg; 2878 link_up = hw_link_info->link_info & ICE_AQ_LINK_UP; 2879 2880 /* Changing the port's flow control is not supported if this isn't the 2881 * PF VSI 2882 */ 2883 if (vsi->type != ICE_VSI_PF) { 2884 netdev_info(netdev, "Changing flow control parameters only supported for PF VSI\n"); 2885 return -EOPNOTSUPP; 2886 } 2887 2888 /* Get pause param reports configured and negotiated flow control pause 2889 * when ETHTOOL_GLINKSETTINGS is defined. Since ETHTOOL_GLINKSETTINGS is 2890 * defined get pause param pause->autoneg reports SW configured setting, 2891 * so compare pause->autoneg with SW configured to prevent the user from 2892 * using set pause param to chance autoneg. 2893 */ 2894 pcaps = kzalloc(sizeof(*pcaps), GFP_KERNEL); 2895 if (!pcaps) 2896 return -ENOMEM; 2897 2898 /* Get current PHY config */ 2899 status = ice_aq_get_phy_caps(pi, false, ICE_AQC_REPORT_SW_CFG, pcaps, 2900 NULL); 2901 if (status) { 2902 kfree(pcaps); 2903 return -EIO; 2904 } 2905 2906 is_an = ((pcaps->caps & ICE_AQC_PHY_AN_MODE) ? 2907 AUTONEG_ENABLE : AUTONEG_DISABLE); 2908 2909 kfree(pcaps); 2910 2911 if (pause->autoneg != is_an) { 2912 netdev_info(netdev, "To change autoneg please use: ethtool -s <dev> autoneg <on|off>\n"); 2913 return -EOPNOTSUPP; 2914 } 2915 2916 /* If we have link and don't have autoneg */ 2917 if (!test_bit(__ICE_DOWN, pf->state) && 2918 !(hw_link_info->an_info & ICE_AQ_AN_COMPLETED)) { 2919 /* Send message that it might not necessarily work*/ 2920 netdev_info(netdev, "Autoneg did not complete so changing settings may not result in an actual change.\n"); 2921 } 2922 2923 if (dcbx_cfg->pfc.pfcena) { 2924 netdev_info(netdev, "Priority flow control enabled. Cannot set link flow control.\n"); 2925 return -EOPNOTSUPP; 2926 } 2927 if (pause->rx_pause && pause->tx_pause) 2928 pi->fc.req_mode = ICE_FC_FULL; 2929 else if (pause->rx_pause && !pause->tx_pause) 2930 pi->fc.req_mode = ICE_FC_RX_PAUSE; 2931 else if (!pause->rx_pause && pause->tx_pause) 2932 pi->fc.req_mode = ICE_FC_TX_PAUSE; 2933 else if (!pause->rx_pause && !pause->tx_pause) 2934 pi->fc.req_mode = ICE_FC_NONE; 2935 else 2936 return -EINVAL; 2937 2938 /* Set the FC mode and only restart AN if link is up */ 2939 status = ice_set_fc(pi, &aq_failures, link_up); 2940 2941 if (aq_failures & ICE_SET_FC_AQ_FAIL_GET) { 2942 netdev_info(netdev, "Set fc failed on the get_phy_capabilities call with err %d aq_err %d\n", 2943 status, hw->adminq.sq_last_status); 2944 err = -EAGAIN; 2945 } else if (aq_failures & ICE_SET_FC_AQ_FAIL_SET) { 2946 netdev_info(netdev, "Set fc failed on the set_phy_config call with err %d aq_err %d\n", 2947 status, hw->adminq.sq_last_status); 2948 err = -EAGAIN; 2949 } else if (aq_failures & ICE_SET_FC_AQ_FAIL_UPDATE) { 2950 netdev_info(netdev, "Set fc failed on the get_link_info call with err %d aq_err %d\n", 2951 status, hw->adminq.sq_last_status); 2952 err = -EAGAIN; 2953 } 2954 2955 if (!test_bit(__ICE_DOWN, pf->state)) { 2956 /* Give it a little more time to try to come back. If still 2957 * down, restart autoneg link or reinitialize the interface. 2958 */ 2959 msleep(75); 2960 if (!test_bit(__ICE_DOWN, pf->state)) 2961 return ice_nway_reset(netdev); 2962 2963 ice_down(vsi); 2964 ice_up(vsi); 2965 } 2966 2967 return err; 2968 } 2969 2970 /** 2971 * ice_get_rxfh_key_size - get the RSS hash key size 2972 * @netdev: network interface device structure 2973 * 2974 * Returns the table size. 2975 */ 2976 static u32 ice_get_rxfh_key_size(struct net_device __always_unused *netdev) 2977 { 2978 return ICE_VSIQF_HKEY_ARRAY_SIZE; 2979 } 2980 2981 /** 2982 * ice_get_rxfh_indir_size - get the Rx flow hash indirection table size 2983 * @netdev: network interface device structure 2984 * 2985 * Returns the table size. 2986 */ 2987 static u32 ice_get_rxfh_indir_size(struct net_device *netdev) 2988 { 2989 struct ice_netdev_priv *np = netdev_priv(netdev); 2990 2991 return np->vsi->rss_table_size; 2992 } 2993 2994 /** 2995 * ice_get_rxfh - get the Rx flow hash indirection table 2996 * @netdev: network interface device structure 2997 * @indir: indirection table 2998 * @key: hash key 2999 * @hfunc: hash function 3000 * 3001 * Reads the indirection table directly from the hardware. 3002 */ 3003 static int 3004 ice_get_rxfh(struct net_device *netdev, u32 *indir, u8 *key, u8 *hfunc) 3005 { 3006 struct ice_netdev_priv *np = netdev_priv(netdev); 3007 struct ice_vsi *vsi = np->vsi; 3008 struct ice_pf *pf = vsi->back; 3009 int ret = 0, i; 3010 u8 *lut; 3011 3012 if (hfunc) 3013 *hfunc = ETH_RSS_HASH_TOP; 3014 3015 if (!indir) 3016 return 0; 3017 3018 if (!test_bit(ICE_FLAG_RSS_ENA, pf->flags)) { 3019 /* RSS not supported return error here */ 3020 netdev_warn(netdev, "RSS is not configured on this VSI!\n"); 3021 return -EIO; 3022 } 3023 3024 lut = kzalloc(vsi->rss_table_size, GFP_KERNEL); 3025 if (!lut) 3026 return -ENOMEM; 3027 3028 if (ice_get_rss(vsi, key, lut, vsi->rss_table_size)) { 3029 ret = -EIO; 3030 goto out; 3031 } 3032 3033 for (i = 0; i < vsi->rss_table_size; i++) 3034 indir[i] = (u32)(lut[i]); 3035 3036 out: 3037 kfree(lut); 3038 return ret; 3039 } 3040 3041 /** 3042 * ice_set_rxfh - set the Rx flow hash indirection table 3043 * @netdev: network interface device structure 3044 * @indir: indirection table 3045 * @key: hash key 3046 * @hfunc: hash function 3047 * 3048 * Returns -EINVAL if the table specifies an invalid queue ID, otherwise 3049 * returns 0 after programming the table. 3050 */ 3051 static int 3052 ice_set_rxfh(struct net_device *netdev, const u32 *indir, const u8 *key, 3053 const u8 hfunc) 3054 { 3055 struct ice_netdev_priv *np = netdev_priv(netdev); 3056 struct ice_vsi *vsi = np->vsi; 3057 struct ice_pf *pf = vsi->back; 3058 struct device *dev; 3059 u8 *seed = NULL; 3060 3061 dev = ice_pf_to_dev(pf); 3062 if (hfunc != ETH_RSS_HASH_NO_CHANGE && hfunc != ETH_RSS_HASH_TOP) 3063 return -EOPNOTSUPP; 3064 3065 if (!test_bit(ICE_FLAG_RSS_ENA, pf->flags)) { 3066 /* RSS not supported return error here */ 3067 netdev_warn(netdev, "RSS is not configured on this VSI!\n"); 3068 return -EIO; 3069 } 3070 3071 if (key) { 3072 if (!vsi->rss_hkey_user) { 3073 vsi->rss_hkey_user = 3074 devm_kzalloc(dev, ICE_VSIQF_HKEY_ARRAY_SIZE, 3075 GFP_KERNEL); 3076 if (!vsi->rss_hkey_user) 3077 return -ENOMEM; 3078 } 3079 memcpy(vsi->rss_hkey_user, key, ICE_VSIQF_HKEY_ARRAY_SIZE); 3080 seed = vsi->rss_hkey_user; 3081 } 3082 3083 if (!vsi->rss_lut_user) { 3084 vsi->rss_lut_user = devm_kzalloc(dev, vsi->rss_table_size, 3085 GFP_KERNEL); 3086 if (!vsi->rss_lut_user) 3087 return -ENOMEM; 3088 } 3089 3090 /* Each 32 bits pointed by 'indir' is stored with a lut entry */ 3091 if (indir) { 3092 int i; 3093 3094 for (i = 0; i < vsi->rss_table_size; i++) 3095 vsi->rss_lut_user[i] = (u8)(indir[i]); 3096 } else { 3097 ice_fill_rss_lut(vsi->rss_lut_user, vsi->rss_table_size, 3098 vsi->rss_size); 3099 } 3100 3101 if (ice_set_rss(vsi, seed, vsi->rss_lut_user, vsi->rss_table_size)) 3102 return -EIO; 3103 3104 return 0; 3105 } 3106 3107 /** 3108 * ice_get_max_txq - return the maximum number of Tx queues for in a PF 3109 * @pf: PF structure 3110 */ 3111 static int ice_get_max_txq(struct ice_pf *pf) 3112 { 3113 return min_t(int, num_online_cpus(), 3114 pf->hw.func_caps.common_cap.num_txq); 3115 } 3116 3117 /** 3118 * ice_get_max_rxq - return the maximum number of Rx queues for in a PF 3119 * @pf: PF structure 3120 */ 3121 static int ice_get_max_rxq(struct ice_pf *pf) 3122 { 3123 return min_t(int, num_online_cpus(), 3124 pf->hw.func_caps.common_cap.num_rxq); 3125 } 3126 3127 /** 3128 * ice_get_combined_cnt - return the current number of combined channels 3129 * @vsi: PF VSI pointer 3130 * 3131 * Go through all queue vectors and count ones that have both Rx and Tx ring 3132 * attached 3133 */ 3134 static u32 ice_get_combined_cnt(struct ice_vsi *vsi) 3135 { 3136 u32 combined = 0; 3137 int q_idx; 3138 3139 ice_for_each_q_vector(vsi, q_idx) { 3140 struct ice_q_vector *q_vector = vsi->q_vectors[q_idx]; 3141 3142 if (q_vector->rx.ring && q_vector->tx.ring) 3143 combined++; 3144 } 3145 3146 return combined; 3147 } 3148 3149 /** 3150 * ice_get_channels - get the current and max supported channels 3151 * @dev: network interface device structure 3152 * @ch: ethtool channel data structure 3153 */ 3154 static void 3155 ice_get_channels(struct net_device *dev, struct ethtool_channels *ch) 3156 { 3157 struct ice_netdev_priv *np = netdev_priv(dev); 3158 struct ice_vsi *vsi = np->vsi; 3159 struct ice_pf *pf = vsi->back; 3160 3161 /* check to see if VSI is active */ 3162 if (test_bit(__ICE_DOWN, vsi->state)) 3163 return; 3164 3165 /* report maximum channels */ 3166 ch->max_rx = ice_get_max_rxq(pf); 3167 ch->max_tx = ice_get_max_txq(pf); 3168 ch->max_combined = min_t(int, ch->max_rx, ch->max_tx); 3169 3170 /* report current channels */ 3171 ch->combined_count = ice_get_combined_cnt(vsi); 3172 ch->rx_count = vsi->num_rxq - ch->combined_count; 3173 ch->tx_count = vsi->num_txq - ch->combined_count; 3174 } 3175 3176 /** 3177 * ice_vsi_set_dflt_rss_lut - set default RSS LUT with requested RSS size 3178 * @vsi: VSI to reconfigure RSS LUT on 3179 * @req_rss_size: requested range of queue numbers for hashing 3180 * 3181 * Set the VSI's RSS parameters, configure the RSS LUT based on these. 3182 */ 3183 static int ice_vsi_set_dflt_rss_lut(struct ice_vsi *vsi, int req_rss_size) 3184 { 3185 struct ice_pf *pf = vsi->back; 3186 enum ice_status status; 3187 struct device *dev; 3188 struct ice_hw *hw; 3189 int err = 0; 3190 u8 *lut; 3191 3192 dev = ice_pf_to_dev(pf); 3193 hw = &pf->hw; 3194 3195 if (!req_rss_size) 3196 return -EINVAL; 3197 3198 lut = kzalloc(vsi->rss_table_size, GFP_KERNEL); 3199 if (!lut) 3200 return -ENOMEM; 3201 3202 /* set RSS LUT parameters */ 3203 if (!test_bit(ICE_FLAG_RSS_ENA, pf->flags)) { 3204 vsi->rss_size = 1; 3205 } else { 3206 struct ice_hw_common_caps *caps = &hw->func_caps.common_cap; 3207 3208 vsi->rss_size = min_t(int, req_rss_size, 3209 BIT(caps->rss_table_entry_width)); 3210 } 3211 3212 /* create/set RSS LUT */ 3213 ice_fill_rss_lut(lut, vsi->rss_table_size, vsi->rss_size); 3214 status = ice_aq_set_rss_lut(hw, vsi->idx, vsi->rss_lut_type, lut, 3215 vsi->rss_table_size); 3216 if (status) { 3217 dev_err(dev, "Cannot set RSS lut, err %d aq_err %d\n", 3218 status, hw->adminq.rq_last_status); 3219 err = -EIO; 3220 } 3221 3222 kfree(lut); 3223 return err; 3224 } 3225 3226 /** 3227 * ice_set_channels - set the number channels 3228 * @dev: network interface device structure 3229 * @ch: ethtool channel data structure 3230 */ 3231 static int ice_set_channels(struct net_device *dev, struct ethtool_channels *ch) 3232 { 3233 struct ice_netdev_priv *np = netdev_priv(dev); 3234 struct ice_vsi *vsi = np->vsi; 3235 struct ice_pf *pf = vsi->back; 3236 int new_rx = 0, new_tx = 0; 3237 u32 curr_combined; 3238 3239 /* do not support changing channels in Safe Mode */ 3240 if (ice_is_safe_mode(pf)) { 3241 netdev_err(dev, "Changing channel in Safe Mode is not supported\n"); 3242 return -EOPNOTSUPP; 3243 } 3244 /* do not support changing other_count */ 3245 if (ch->other_count) 3246 return -EINVAL; 3247 3248 curr_combined = ice_get_combined_cnt(vsi); 3249 3250 /* these checks are for cases where user didn't specify a particular 3251 * value on cmd line but we get non-zero value anyway via 3252 * get_channels(); look at ethtool.c in ethtool repository (the user 3253 * space part), particularly, do_schannels() routine 3254 */ 3255 if (ch->rx_count == vsi->num_rxq - curr_combined) 3256 ch->rx_count = 0; 3257 if (ch->tx_count == vsi->num_txq - curr_combined) 3258 ch->tx_count = 0; 3259 if (ch->combined_count == curr_combined) 3260 ch->combined_count = 0; 3261 3262 if (!(ch->combined_count || (ch->rx_count && ch->tx_count))) { 3263 netdev_err(dev, "Please specify at least 1 Rx and 1 Tx channel\n"); 3264 return -EINVAL; 3265 } 3266 3267 new_rx = ch->combined_count + ch->rx_count; 3268 new_tx = ch->combined_count + ch->tx_count; 3269 3270 if (new_rx > ice_get_max_rxq(pf)) { 3271 netdev_err(dev, "Maximum allowed Rx channels is %d\n", 3272 ice_get_max_rxq(pf)); 3273 return -EINVAL; 3274 } 3275 if (new_tx > ice_get_max_txq(pf)) { 3276 netdev_err(dev, "Maximum allowed Tx channels is %d\n", 3277 ice_get_max_txq(pf)); 3278 return -EINVAL; 3279 } 3280 3281 ice_vsi_recfg_qs(vsi, new_rx, new_tx); 3282 3283 if (new_rx && !netif_is_rxfh_configured(dev)) 3284 return ice_vsi_set_dflt_rss_lut(vsi, new_rx); 3285 3286 return 0; 3287 } 3288 3289 enum ice_container_type { 3290 ICE_RX_CONTAINER, 3291 ICE_TX_CONTAINER, 3292 }; 3293 3294 /** 3295 * ice_get_rc_coalesce - get ITR values for specific ring container 3296 * @ec: ethtool structure to fill with driver's coalesce settings 3297 * @c_type: container type, Rx or Tx 3298 * @rc: ring container that the ITR values will come from 3299 * 3300 * Query the device for ice_ring_container specific ITR values. This is 3301 * done per ice_ring_container because each q_vector can have 1 or more rings 3302 * and all of said ring(s) will have the same ITR values. 3303 * 3304 * Returns 0 on success, negative otherwise. 3305 */ 3306 static int 3307 ice_get_rc_coalesce(struct ethtool_coalesce *ec, enum ice_container_type c_type, 3308 struct ice_ring_container *rc) 3309 { 3310 struct ice_pf *pf; 3311 3312 if (!rc->ring) 3313 return -EINVAL; 3314 3315 pf = rc->ring->vsi->back; 3316 3317 switch (c_type) { 3318 case ICE_RX_CONTAINER: 3319 ec->use_adaptive_rx_coalesce = ITR_IS_DYNAMIC(rc->itr_setting); 3320 ec->rx_coalesce_usecs = rc->itr_setting & ~ICE_ITR_DYNAMIC; 3321 ec->rx_coalesce_usecs_high = rc->ring->q_vector->intrl; 3322 break; 3323 case ICE_TX_CONTAINER: 3324 ec->use_adaptive_tx_coalesce = ITR_IS_DYNAMIC(rc->itr_setting); 3325 ec->tx_coalesce_usecs = rc->itr_setting & ~ICE_ITR_DYNAMIC; 3326 break; 3327 default: 3328 dev_dbg(ice_pf_to_dev(pf), "Invalid c_type %d\n", c_type); 3329 return -EINVAL; 3330 } 3331 3332 return 0; 3333 } 3334 3335 /** 3336 * ice_get_q_coalesce - get a queue's ITR/INTRL (coalesce) settings 3337 * @vsi: VSI associated to the queue for getting ITR/INTRL (coalesce) settings 3338 * @ec: coalesce settings to program the device with 3339 * @q_num: update ITR/INTRL (coalesce) settings for this queue number/index 3340 * 3341 * Return 0 on success, and negative under the following conditions: 3342 * 1. Getting Tx or Rx ITR/INTRL (coalesce) settings failed. 3343 * 2. The q_num passed in is not a valid number/index for Tx and Rx rings. 3344 */ 3345 static int 3346 ice_get_q_coalesce(struct ice_vsi *vsi, struct ethtool_coalesce *ec, int q_num) 3347 { 3348 if (q_num < vsi->num_rxq && q_num < vsi->num_txq) { 3349 if (ice_get_rc_coalesce(ec, ICE_RX_CONTAINER, 3350 &vsi->rx_rings[q_num]->q_vector->rx)) 3351 return -EINVAL; 3352 if (ice_get_rc_coalesce(ec, ICE_TX_CONTAINER, 3353 &vsi->tx_rings[q_num]->q_vector->tx)) 3354 return -EINVAL; 3355 } else if (q_num < vsi->num_rxq) { 3356 if (ice_get_rc_coalesce(ec, ICE_RX_CONTAINER, 3357 &vsi->rx_rings[q_num]->q_vector->rx)) 3358 return -EINVAL; 3359 } else if (q_num < vsi->num_txq) { 3360 if (ice_get_rc_coalesce(ec, ICE_TX_CONTAINER, 3361 &vsi->tx_rings[q_num]->q_vector->tx)) 3362 return -EINVAL; 3363 } else { 3364 return -EINVAL; 3365 } 3366 3367 return 0; 3368 } 3369 3370 /** 3371 * __ice_get_coalesce - get ITR/INTRL values for the device 3372 * @netdev: pointer to the netdev associated with this query 3373 * @ec: ethtool structure to fill with driver's coalesce settings 3374 * @q_num: queue number to get the coalesce settings for 3375 * 3376 * If the caller passes in a negative q_num then we return coalesce settings 3377 * based on queue number 0, else use the actual q_num passed in. 3378 */ 3379 static int 3380 __ice_get_coalesce(struct net_device *netdev, struct ethtool_coalesce *ec, 3381 int q_num) 3382 { 3383 struct ice_netdev_priv *np = netdev_priv(netdev); 3384 struct ice_vsi *vsi = np->vsi; 3385 3386 if (q_num < 0) 3387 q_num = 0; 3388 3389 if (ice_get_q_coalesce(vsi, ec, q_num)) 3390 return -EINVAL; 3391 3392 return 0; 3393 } 3394 3395 static int 3396 ice_get_coalesce(struct net_device *netdev, struct ethtool_coalesce *ec) 3397 { 3398 return __ice_get_coalesce(netdev, ec, -1); 3399 } 3400 3401 static int 3402 ice_get_per_q_coalesce(struct net_device *netdev, u32 q_num, 3403 struct ethtool_coalesce *ec) 3404 { 3405 return __ice_get_coalesce(netdev, ec, q_num); 3406 } 3407 3408 /** 3409 * ice_set_rc_coalesce - set ITR values for specific ring container 3410 * @c_type: container type, Rx or Tx 3411 * @ec: ethtool structure from user to update ITR settings 3412 * @rc: ring container that the ITR values will come from 3413 * @vsi: VSI associated to the ring container 3414 * 3415 * Set specific ITR values. This is done per ice_ring_container because each 3416 * q_vector can have 1 or more rings and all of said ring(s) will have the same 3417 * ITR values. 3418 * 3419 * Returns 0 on success, negative otherwise. 3420 */ 3421 static int 3422 ice_set_rc_coalesce(enum ice_container_type c_type, struct ethtool_coalesce *ec, 3423 struct ice_ring_container *rc, struct ice_vsi *vsi) 3424 { 3425 const char *c_type_str = (c_type == ICE_RX_CONTAINER) ? "rx" : "tx"; 3426 u32 use_adaptive_coalesce, coalesce_usecs; 3427 struct ice_pf *pf = vsi->back; 3428 u16 itr_setting; 3429 3430 if (!rc->ring) 3431 return -EINVAL; 3432 3433 switch (c_type) { 3434 case ICE_RX_CONTAINER: 3435 if (ec->rx_coalesce_usecs_high > ICE_MAX_INTRL || 3436 (ec->rx_coalesce_usecs_high && 3437 ec->rx_coalesce_usecs_high < pf->hw.intrl_gran)) { 3438 netdev_info(vsi->netdev, "Invalid value, %s-usecs-high valid values are 0 (disabled), %d-%d\n", 3439 c_type_str, pf->hw.intrl_gran, 3440 ICE_MAX_INTRL); 3441 return -EINVAL; 3442 } 3443 if (ec->rx_coalesce_usecs_high != rc->ring->q_vector->intrl) { 3444 rc->ring->q_vector->intrl = ec->rx_coalesce_usecs_high; 3445 wr32(&pf->hw, GLINT_RATE(rc->ring->q_vector->reg_idx), 3446 ice_intrl_usec_to_reg(ec->rx_coalesce_usecs_high, 3447 pf->hw.intrl_gran)); 3448 } 3449 3450 use_adaptive_coalesce = ec->use_adaptive_rx_coalesce; 3451 coalesce_usecs = ec->rx_coalesce_usecs; 3452 3453 break; 3454 case ICE_TX_CONTAINER: 3455 if (ec->tx_coalesce_usecs_high) { 3456 netdev_info(vsi->netdev, "setting %s-usecs-high is not supported\n", 3457 c_type_str); 3458 return -EINVAL; 3459 } 3460 3461 use_adaptive_coalesce = ec->use_adaptive_tx_coalesce; 3462 coalesce_usecs = ec->tx_coalesce_usecs; 3463 3464 break; 3465 default: 3466 dev_dbg(ice_pf_to_dev(pf), "Invalid container type %d\n", 3467 c_type); 3468 return -EINVAL; 3469 } 3470 3471 itr_setting = rc->itr_setting & ~ICE_ITR_DYNAMIC; 3472 if (coalesce_usecs != itr_setting && use_adaptive_coalesce) { 3473 netdev_info(vsi->netdev, "%s interrupt throttling cannot be changed if adaptive-%s is enabled\n", 3474 c_type_str, c_type_str); 3475 return -EINVAL; 3476 } 3477 3478 if (coalesce_usecs > ICE_ITR_MAX) { 3479 netdev_info(vsi->netdev, "Invalid value, %s-usecs range is 0-%d\n", 3480 c_type_str, ICE_ITR_MAX); 3481 return -EINVAL; 3482 } 3483 3484 if (use_adaptive_coalesce) { 3485 rc->itr_setting |= ICE_ITR_DYNAMIC; 3486 } else { 3487 /* save the user set usecs */ 3488 rc->itr_setting = coalesce_usecs; 3489 /* device ITR granularity is in 2 usec increments */ 3490 rc->target_itr = ITR_REG_ALIGN(rc->itr_setting); 3491 } 3492 3493 return 0; 3494 } 3495 3496 /** 3497 * ice_set_q_coalesce - set a queue's ITR/INTRL (coalesce) settings 3498 * @vsi: VSI associated to the queue that need updating 3499 * @ec: coalesce settings to program the device with 3500 * @q_num: update ITR/INTRL (coalesce) settings for this queue number/index 3501 * 3502 * Return 0 on success, and negative under the following conditions: 3503 * 1. Setting Tx or Rx ITR/INTRL (coalesce) settings failed. 3504 * 2. The q_num passed in is not a valid number/index for Tx and Rx rings. 3505 */ 3506 static int 3507 ice_set_q_coalesce(struct ice_vsi *vsi, struct ethtool_coalesce *ec, int q_num) 3508 { 3509 if (q_num < vsi->num_rxq && q_num < vsi->num_txq) { 3510 if (ice_set_rc_coalesce(ICE_RX_CONTAINER, ec, 3511 &vsi->rx_rings[q_num]->q_vector->rx, 3512 vsi)) 3513 return -EINVAL; 3514 3515 if (ice_set_rc_coalesce(ICE_TX_CONTAINER, ec, 3516 &vsi->tx_rings[q_num]->q_vector->tx, 3517 vsi)) 3518 return -EINVAL; 3519 } else if (q_num < vsi->num_rxq) { 3520 if (ice_set_rc_coalesce(ICE_RX_CONTAINER, ec, 3521 &vsi->rx_rings[q_num]->q_vector->rx, 3522 vsi)) 3523 return -EINVAL; 3524 } else if (q_num < vsi->num_txq) { 3525 if (ice_set_rc_coalesce(ICE_TX_CONTAINER, ec, 3526 &vsi->tx_rings[q_num]->q_vector->tx, 3527 vsi)) 3528 return -EINVAL; 3529 } else { 3530 return -EINVAL; 3531 } 3532 3533 return 0; 3534 } 3535 3536 /** 3537 * ice_is_coalesce_param_invalid - check for unsupported coalesce parameters 3538 * @netdev: pointer to the netdev associated with this query 3539 * @ec: ethtool structure to fill with driver's coalesce settings 3540 * 3541 * Print netdev info if driver doesn't support one of the parameters 3542 * and return error. When any parameters will be implemented, remove only 3543 * this parameter from param array. 3544 */ 3545 static int 3546 ice_is_coalesce_param_invalid(struct net_device *netdev, 3547 struct ethtool_coalesce *ec) 3548 { 3549 struct ice_ethtool_not_used { 3550 u32 value; 3551 const char *name; 3552 } param[] = { 3553 {ec->stats_block_coalesce_usecs, "stats-block-usecs"}, 3554 {ec->rate_sample_interval, "sample-interval"}, 3555 {ec->pkt_rate_low, "pkt-rate-low"}, 3556 {ec->pkt_rate_high, "pkt-rate-high"}, 3557 {ec->rx_max_coalesced_frames, "rx-frames"}, 3558 {ec->rx_coalesce_usecs_irq, "rx-usecs-irq"}, 3559 {ec->rx_max_coalesced_frames_irq, "rx-frames-irq"}, 3560 {ec->tx_max_coalesced_frames, "tx-frames"}, 3561 {ec->tx_coalesce_usecs_irq, "tx-usecs-irq"}, 3562 {ec->tx_max_coalesced_frames_irq, "tx-frames-irq"}, 3563 {ec->rx_coalesce_usecs_low, "rx-usecs-low"}, 3564 {ec->rx_max_coalesced_frames_low, "rx-frames-low"}, 3565 {ec->tx_coalesce_usecs_low, "tx-usecs-low"}, 3566 {ec->tx_max_coalesced_frames_low, "tx-frames-low"}, 3567 {ec->rx_max_coalesced_frames_high, "rx-frames-high"}, 3568 {ec->tx_max_coalesced_frames_high, "tx-frames-high"} 3569 }; 3570 int i; 3571 3572 for (i = 0; i < ARRAY_SIZE(param); i++) { 3573 if (param[i].value) { 3574 netdev_info(netdev, "Setting %s not supported\n", 3575 param[i].name); 3576 return -EINVAL; 3577 } 3578 } 3579 3580 return 0; 3581 } 3582 3583 /** 3584 * ice_print_if_odd_usecs - print message if user tries to set odd [tx|rx]-usecs 3585 * @netdev: netdev used for print 3586 * @itr_setting: previous user setting 3587 * @use_adaptive_coalesce: if adaptive coalesce is enabled or being enabled 3588 * @coalesce_usecs: requested value of [tx|rx]-usecs 3589 * @c_type_str: either "rx" or "tx" to match user set field of [tx|rx]-usecs 3590 */ 3591 static void 3592 ice_print_if_odd_usecs(struct net_device *netdev, u16 itr_setting, 3593 u32 use_adaptive_coalesce, u32 coalesce_usecs, 3594 const char *c_type_str) 3595 { 3596 if (use_adaptive_coalesce) 3597 return; 3598 3599 itr_setting = ITR_TO_REG(itr_setting); 3600 3601 if (itr_setting != coalesce_usecs && (coalesce_usecs % 2)) 3602 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", 3603 c_type_str, coalesce_usecs, c_type_str, 3604 ITR_REG_ALIGN(coalesce_usecs)); 3605 } 3606 3607 /** 3608 * __ice_set_coalesce - set ITR/INTRL values for the device 3609 * @netdev: pointer to the netdev associated with this query 3610 * @ec: ethtool structure to fill with driver's coalesce settings 3611 * @q_num: queue number to get the coalesce settings for 3612 * 3613 * If the caller passes in a negative q_num then we set the coalesce settings 3614 * for all Tx/Rx queues, else use the actual q_num passed in. 3615 */ 3616 static int 3617 __ice_set_coalesce(struct net_device *netdev, struct ethtool_coalesce *ec, 3618 int q_num) 3619 { 3620 struct ice_netdev_priv *np = netdev_priv(netdev); 3621 struct ice_vsi *vsi = np->vsi; 3622 3623 if (ice_is_coalesce_param_invalid(netdev, ec)) 3624 return -EINVAL; 3625 3626 if (q_num < 0) { 3627 struct ice_q_vector *q_vector = vsi->q_vectors[0]; 3628 int v_idx; 3629 3630 if (q_vector) { 3631 ice_print_if_odd_usecs(netdev, q_vector->rx.itr_setting, 3632 ec->use_adaptive_rx_coalesce, 3633 ec->rx_coalesce_usecs, "rx"); 3634 3635 ice_print_if_odd_usecs(netdev, q_vector->tx.itr_setting, 3636 ec->use_adaptive_tx_coalesce, 3637 ec->tx_coalesce_usecs, "tx"); 3638 } 3639 3640 ice_for_each_q_vector(vsi, v_idx) { 3641 /* In some cases if DCB is configured the num_[rx|tx]q 3642 * can be less than vsi->num_q_vectors. This check 3643 * accounts for that so we don't report a false failure 3644 */ 3645 if (v_idx >= vsi->num_rxq && v_idx >= vsi->num_txq) 3646 goto set_complete; 3647 3648 if (ice_set_q_coalesce(vsi, ec, v_idx)) 3649 return -EINVAL; 3650 } 3651 goto set_complete; 3652 } 3653 3654 if (ice_set_q_coalesce(vsi, ec, q_num)) 3655 return -EINVAL; 3656 3657 set_complete: 3658 3659 return 0; 3660 } 3661 3662 static int 3663 ice_set_coalesce(struct net_device *netdev, struct ethtool_coalesce *ec) 3664 { 3665 return __ice_set_coalesce(netdev, ec, -1); 3666 } 3667 3668 static int 3669 ice_set_per_q_coalesce(struct net_device *netdev, u32 q_num, 3670 struct ethtool_coalesce *ec) 3671 { 3672 return __ice_set_coalesce(netdev, ec, q_num); 3673 } 3674 3675 #define ICE_I2C_EEPROM_DEV_ADDR 0xA0 3676 #define ICE_I2C_EEPROM_DEV_ADDR2 0xA2 3677 #define ICE_MODULE_TYPE_SFP 0x03 3678 #define ICE_MODULE_TYPE_QSFP_PLUS 0x0D 3679 #define ICE_MODULE_TYPE_QSFP28 0x11 3680 #define ICE_MODULE_SFF_ADDR_MODE 0x04 3681 #define ICE_MODULE_SFF_DIAG_CAPAB 0x40 3682 #define ICE_MODULE_REVISION_ADDR 0x01 3683 #define ICE_MODULE_SFF_8472_COMP 0x5E 3684 #define ICE_MODULE_SFF_8472_SWAP 0x5C 3685 #define ICE_MODULE_QSFP_MAX_LEN 640 3686 3687 /** 3688 * ice_get_module_info - get SFF module type and revision information 3689 * @netdev: network interface device structure 3690 * @modinfo: module EEPROM size and layout information structure 3691 */ 3692 static int 3693 ice_get_module_info(struct net_device *netdev, 3694 struct ethtool_modinfo *modinfo) 3695 { 3696 struct ice_netdev_priv *np = netdev_priv(netdev); 3697 struct ice_vsi *vsi = np->vsi; 3698 struct ice_pf *pf = vsi->back; 3699 struct ice_hw *hw = &pf->hw; 3700 enum ice_status status; 3701 u8 sff8472_comp = 0; 3702 u8 sff8472_swap = 0; 3703 u8 sff8636_rev = 0; 3704 u8 value = 0; 3705 3706 status = ice_aq_sff_eeprom(hw, 0, ICE_I2C_EEPROM_DEV_ADDR, 0x00, 0x00, 3707 0, &value, 1, 0, NULL); 3708 if (status) 3709 return -EIO; 3710 3711 switch (value) { 3712 case ICE_MODULE_TYPE_SFP: 3713 status = ice_aq_sff_eeprom(hw, 0, ICE_I2C_EEPROM_DEV_ADDR, 3714 ICE_MODULE_SFF_8472_COMP, 0x00, 0, 3715 &sff8472_comp, 1, 0, NULL); 3716 if (status) 3717 return -EIO; 3718 status = ice_aq_sff_eeprom(hw, 0, ICE_I2C_EEPROM_DEV_ADDR, 3719 ICE_MODULE_SFF_8472_SWAP, 0x00, 0, 3720 &sff8472_swap, 1, 0, NULL); 3721 if (status) 3722 return -EIO; 3723 3724 if (sff8472_swap & ICE_MODULE_SFF_ADDR_MODE) { 3725 modinfo->type = ETH_MODULE_SFF_8079; 3726 modinfo->eeprom_len = ETH_MODULE_SFF_8079_LEN; 3727 } else if (sff8472_comp && 3728 (sff8472_swap & ICE_MODULE_SFF_DIAG_CAPAB)) { 3729 modinfo->type = ETH_MODULE_SFF_8472; 3730 modinfo->eeprom_len = ETH_MODULE_SFF_8472_LEN; 3731 } else { 3732 modinfo->type = ETH_MODULE_SFF_8079; 3733 modinfo->eeprom_len = ETH_MODULE_SFF_8079_LEN; 3734 } 3735 break; 3736 case ICE_MODULE_TYPE_QSFP_PLUS: 3737 case ICE_MODULE_TYPE_QSFP28: 3738 status = ice_aq_sff_eeprom(hw, 0, ICE_I2C_EEPROM_DEV_ADDR, 3739 ICE_MODULE_REVISION_ADDR, 0x00, 0, 3740 &sff8636_rev, 1, 0, NULL); 3741 if (status) 3742 return -EIO; 3743 /* Check revision compliance */ 3744 if (sff8636_rev > 0x02) { 3745 /* Module is SFF-8636 compliant */ 3746 modinfo->type = ETH_MODULE_SFF_8636; 3747 modinfo->eeprom_len = ICE_MODULE_QSFP_MAX_LEN; 3748 } else { 3749 modinfo->type = ETH_MODULE_SFF_8436; 3750 modinfo->eeprom_len = ICE_MODULE_QSFP_MAX_LEN; 3751 } 3752 break; 3753 default: 3754 netdev_warn(netdev, "SFF Module Type not recognized.\n"); 3755 return -EINVAL; 3756 } 3757 return 0; 3758 } 3759 3760 /** 3761 * ice_get_module_eeprom - fill buffer with SFF EEPROM contents 3762 * @netdev: network interface device structure 3763 * @ee: EEPROM dump request structure 3764 * @data: buffer to be filled with EEPROM contents 3765 */ 3766 static int 3767 ice_get_module_eeprom(struct net_device *netdev, 3768 struct ethtool_eeprom *ee, u8 *data) 3769 { 3770 struct ice_netdev_priv *np = netdev_priv(netdev); 3771 u8 addr = ICE_I2C_EEPROM_DEV_ADDR; 3772 struct ice_vsi *vsi = np->vsi; 3773 struct ice_pf *pf = vsi->back; 3774 struct ice_hw *hw = &pf->hw; 3775 enum ice_status status; 3776 bool is_sfp = false; 3777 u16 offset = 0; 3778 u8 value = 0; 3779 u8 page = 0; 3780 int i; 3781 3782 status = ice_aq_sff_eeprom(hw, 0, addr, offset, page, 0, 3783 &value, 1, 0, NULL); 3784 if (status) 3785 return -EIO; 3786 3787 if (!ee || !ee->len || !data) 3788 return -EINVAL; 3789 3790 if (value == ICE_MODULE_TYPE_SFP) 3791 is_sfp = true; 3792 3793 for (i = 0; i < ee->len; i++) { 3794 offset = i + ee->offset; 3795 3796 /* Check if we need to access the other memory page */ 3797 if (is_sfp) { 3798 if (offset >= ETH_MODULE_SFF_8079_LEN) { 3799 offset -= ETH_MODULE_SFF_8079_LEN; 3800 addr = ICE_I2C_EEPROM_DEV_ADDR2; 3801 } 3802 } else { 3803 while (offset >= ETH_MODULE_SFF_8436_LEN) { 3804 /* Compute memory page number and offset. */ 3805 offset -= ETH_MODULE_SFF_8436_LEN / 2; 3806 page++; 3807 } 3808 } 3809 3810 status = ice_aq_sff_eeprom(hw, 0, addr, offset, page, !is_sfp, 3811 &value, 1, 0, NULL); 3812 if (status) 3813 value = 0; 3814 data[i] = value; 3815 } 3816 return 0; 3817 } 3818 3819 static const struct ethtool_ops ice_ethtool_ops = { 3820 .get_link_ksettings = ice_get_link_ksettings, 3821 .set_link_ksettings = ice_set_link_ksettings, 3822 .get_drvinfo = ice_get_drvinfo, 3823 .get_regs_len = ice_get_regs_len, 3824 .get_regs = ice_get_regs, 3825 .get_msglevel = ice_get_msglevel, 3826 .set_msglevel = ice_set_msglevel, 3827 .self_test = ice_self_test, 3828 .get_link = ethtool_op_get_link, 3829 .get_eeprom_len = ice_get_eeprom_len, 3830 .get_eeprom = ice_get_eeprom, 3831 .get_coalesce = ice_get_coalesce, 3832 .set_coalesce = ice_set_coalesce, 3833 .get_strings = ice_get_strings, 3834 .set_phys_id = ice_set_phys_id, 3835 .get_ethtool_stats = ice_get_ethtool_stats, 3836 .get_priv_flags = ice_get_priv_flags, 3837 .set_priv_flags = ice_set_priv_flags, 3838 .get_sset_count = ice_get_sset_count, 3839 .get_rxnfc = ice_get_rxnfc, 3840 .set_rxnfc = ice_set_rxnfc, 3841 .get_ringparam = ice_get_ringparam, 3842 .set_ringparam = ice_set_ringparam, 3843 .nway_reset = ice_nway_reset, 3844 .get_pauseparam = ice_get_pauseparam, 3845 .set_pauseparam = ice_set_pauseparam, 3846 .get_rxfh_key_size = ice_get_rxfh_key_size, 3847 .get_rxfh_indir_size = ice_get_rxfh_indir_size, 3848 .get_rxfh = ice_get_rxfh, 3849 .set_rxfh = ice_set_rxfh, 3850 .get_channels = ice_get_channels, 3851 .set_channels = ice_set_channels, 3852 .get_ts_info = ethtool_op_get_ts_info, 3853 .get_per_queue_coalesce = ice_get_per_q_coalesce, 3854 .set_per_queue_coalesce = ice_set_per_q_coalesce, 3855 .get_fecparam = ice_get_fecparam, 3856 .set_fecparam = ice_set_fecparam, 3857 .get_module_info = ice_get_module_info, 3858 .get_module_eeprom = ice_get_module_eeprom, 3859 }; 3860 3861 static const struct ethtool_ops ice_ethtool_safe_mode_ops = { 3862 .get_link_ksettings = ice_get_link_ksettings, 3863 .set_link_ksettings = ice_set_link_ksettings, 3864 .get_drvinfo = ice_get_drvinfo, 3865 .get_regs_len = ice_get_regs_len, 3866 .get_regs = ice_get_regs, 3867 .get_msglevel = ice_get_msglevel, 3868 .set_msglevel = ice_set_msglevel, 3869 .get_eeprom_len = ice_get_eeprom_len, 3870 .get_eeprom = ice_get_eeprom, 3871 .get_strings = ice_get_strings, 3872 .get_ethtool_stats = ice_get_ethtool_stats, 3873 .get_sset_count = ice_get_sset_count, 3874 .get_ringparam = ice_get_ringparam, 3875 .set_ringparam = ice_set_ringparam, 3876 .nway_reset = ice_nway_reset, 3877 .get_channels = ice_get_channels, 3878 }; 3879 3880 /** 3881 * ice_set_ethtool_safe_mode_ops - setup safe mode ethtool ops 3882 * @netdev: network interface device structure 3883 */ 3884 void ice_set_ethtool_safe_mode_ops(struct net_device *netdev) 3885 { 3886 netdev->ethtool_ops = &ice_ethtool_safe_mode_ops; 3887 } 3888 3889 /** 3890 * ice_set_ethtool_ops - setup netdev ethtool ops 3891 * @netdev: network interface device structure 3892 * 3893 * setup netdev ethtool ops with ice specific ops 3894 */ 3895 void ice_set_ethtool_ops(struct net_device *netdev) 3896 { 3897 netdev->ethtool_ops = &ice_ethtool_ops; 3898 } 3899