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_fltr.h" 9 #include "ice_lib.h" 10 #include "ice_dcb_lib.h" 11 #include <net/dcbnl.h> 12 13 struct ice_stats { 14 char stat_string[ETH_GSTRING_LEN]; 15 int sizeof_stat; 16 int stat_offset; 17 }; 18 19 #define ICE_STAT(_type, _name, _stat) { \ 20 .stat_string = _name, \ 21 .sizeof_stat = sizeof_field(_type, _stat), \ 22 .stat_offset = offsetof(_type, _stat) \ 23 } 24 25 #define ICE_VSI_STAT(_name, _stat) \ 26 ICE_STAT(struct ice_vsi, _name, _stat) 27 #define ICE_PF_STAT(_name, _stat) \ 28 ICE_STAT(struct ice_pf, _name, _stat) 29 30 static int ice_q_stats_len(struct net_device *netdev) 31 { 32 struct ice_netdev_priv *np = netdev_priv(netdev); 33 34 return ((np->vsi->alloc_txq + np->vsi->alloc_rxq) * 35 (sizeof(struct ice_q_stats) / sizeof(u64))); 36 } 37 38 #define ICE_PF_STATS_LEN ARRAY_SIZE(ice_gstrings_pf_stats) 39 #define ICE_VSI_STATS_LEN ARRAY_SIZE(ice_gstrings_vsi_stats) 40 41 #define ICE_PFC_STATS_LEN ( \ 42 (sizeof_field(struct ice_pf, stats.priority_xoff_rx) + \ 43 sizeof_field(struct ice_pf, stats.priority_xon_rx) + \ 44 sizeof_field(struct ice_pf, stats.priority_xoff_tx) + \ 45 sizeof_field(struct ice_pf, stats.priority_xon_tx)) \ 46 / sizeof(u64)) 47 #define ICE_ALL_STATS_LEN(n) (ICE_PF_STATS_LEN + ICE_PFC_STATS_LEN + \ 48 ICE_VSI_STATS_LEN + ice_q_stats_len(n)) 49 50 static const struct ice_stats ice_gstrings_vsi_stats[] = { 51 ICE_VSI_STAT("rx_unicast", eth_stats.rx_unicast), 52 ICE_VSI_STAT("tx_unicast", eth_stats.tx_unicast), 53 ICE_VSI_STAT("rx_multicast", eth_stats.rx_multicast), 54 ICE_VSI_STAT("tx_multicast", eth_stats.tx_multicast), 55 ICE_VSI_STAT("rx_broadcast", eth_stats.rx_broadcast), 56 ICE_VSI_STAT("tx_broadcast", eth_stats.tx_broadcast), 57 ICE_VSI_STAT("rx_bytes", eth_stats.rx_bytes), 58 ICE_VSI_STAT("tx_bytes", eth_stats.tx_bytes), 59 ICE_VSI_STAT("rx_dropped", eth_stats.rx_discards), 60 ICE_VSI_STAT("rx_unknown_protocol", eth_stats.rx_unknown_protocol), 61 ICE_VSI_STAT("rx_alloc_fail", rx_buf_failed), 62 ICE_VSI_STAT("rx_pg_alloc_fail", rx_page_failed), 63 ICE_VSI_STAT("tx_errors", eth_stats.tx_errors), 64 ICE_VSI_STAT("tx_linearize", tx_linearize), 65 ICE_VSI_STAT("tx_busy", tx_busy), 66 ICE_VSI_STAT("tx_restart", tx_restart), 67 }; 68 69 enum ice_ethtool_test_id { 70 ICE_ETH_TEST_REG = 0, 71 ICE_ETH_TEST_EEPROM, 72 ICE_ETH_TEST_INTR, 73 ICE_ETH_TEST_LOOP, 74 ICE_ETH_TEST_LINK, 75 }; 76 77 static const char ice_gstrings_test[][ETH_GSTRING_LEN] = { 78 "Register test (offline)", 79 "EEPROM test (offline)", 80 "Interrupt test (offline)", 81 "Loopback test (offline)", 82 "Link test (on/offline)", 83 }; 84 85 #define ICE_TEST_LEN (sizeof(ice_gstrings_test) / ETH_GSTRING_LEN) 86 87 /* These PF_STATs might look like duplicates of some NETDEV_STATs, 88 * but they aren't. This device is capable of supporting multiple 89 * VSIs/netdevs on a single PF. The NETDEV_STATs are for individual 90 * netdevs whereas the PF_STATs are for the physical function that's 91 * hosting these netdevs. 92 * 93 * The PF_STATs are appended to the netdev stats only when ethtool -S 94 * is queried on the base PF netdev. 95 */ 96 static const struct ice_stats ice_gstrings_pf_stats[] = { 97 ICE_PF_STAT("rx_bytes.nic", stats.eth.rx_bytes), 98 ICE_PF_STAT("tx_bytes.nic", stats.eth.tx_bytes), 99 ICE_PF_STAT("rx_unicast.nic", stats.eth.rx_unicast), 100 ICE_PF_STAT("tx_unicast.nic", stats.eth.tx_unicast), 101 ICE_PF_STAT("rx_multicast.nic", stats.eth.rx_multicast), 102 ICE_PF_STAT("tx_multicast.nic", stats.eth.tx_multicast), 103 ICE_PF_STAT("rx_broadcast.nic", stats.eth.rx_broadcast), 104 ICE_PF_STAT("tx_broadcast.nic", stats.eth.tx_broadcast), 105 ICE_PF_STAT("tx_errors.nic", stats.eth.tx_errors), 106 ICE_PF_STAT("tx_timeout.nic", tx_timeout_count), 107 ICE_PF_STAT("rx_size_64.nic", stats.rx_size_64), 108 ICE_PF_STAT("tx_size_64.nic", stats.tx_size_64), 109 ICE_PF_STAT("rx_size_127.nic", stats.rx_size_127), 110 ICE_PF_STAT("tx_size_127.nic", stats.tx_size_127), 111 ICE_PF_STAT("rx_size_255.nic", stats.rx_size_255), 112 ICE_PF_STAT("tx_size_255.nic", stats.tx_size_255), 113 ICE_PF_STAT("rx_size_511.nic", stats.rx_size_511), 114 ICE_PF_STAT("tx_size_511.nic", stats.tx_size_511), 115 ICE_PF_STAT("rx_size_1023.nic", stats.rx_size_1023), 116 ICE_PF_STAT("tx_size_1023.nic", stats.tx_size_1023), 117 ICE_PF_STAT("rx_size_1522.nic", stats.rx_size_1522), 118 ICE_PF_STAT("tx_size_1522.nic", stats.tx_size_1522), 119 ICE_PF_STAT("rx_size_big.nic", stats.rx_size_big), 120 ICE_PF_STAT("tx_size_big.nic", stats.tx_size_big), 121 ICE_PF_STAT("link_xon_rx.nic", stats.link_xon_rx), 122 ICE_PF_STAT("link_xon_tx.nic", stats.link_xon_tx), 123 ICE_PF_STAT("link_xoff_rx.nic", stats.link_xoff_rx), 124 ICE_PF_STAT("link_xoff_tx.nic", stats.link_xoff_tx), 125 ICE_PF_STAT("tx_dropped_link_down.nic", stats.tx_dropped_link_down), 126 ICE_PF_STAT("rx_undersize.nic", stats.rx_undersize), 127 ICE_PF_STAT("rx_fragments.nic", stats.rx_fragments), 128 ICE_PF_STAT("rx_oversize.nic", stats.rx_oversize), 129 ICE_PF_STAT("rx_jabber.nic", stats.rx_jabber), 130 ICE_PF_STAT("rx_csum_bad.nic", hw_csum_rx_error), 131 ICE_PF_STAT("rx_length_errors.nic", stats.rx_len_errors), 132 ICE_PF_STAT("rx_dropped.nic", stats.eth.rx_discards), 133 ICE_PF_STAT("rx_crc_errors.nic", stats.crc_errors), 134 ICE_PF_STAT("illegal_bytes.nic", stats.illegal_bytes), 135 ICE_PF_STAT("mac_local_faults.nic", stats.mac_local_faults), 136 ICE_PF_STAT("mac_remote_faults.nic", stats.mac_remote_faults), 137 ICE_PF_STAT("fdir_sb_match.nic", stats.fd_sb_match), 138 ICE_PF_STAT("fdir_sb_status.nic", stats.fd_sb_status), 139 }; 140 141 static const u32 ice_regs_dump_list[] = { 142 PFGEN_STATE, 143 PRTGEN_STATUS, 144 QRX_CTRL(0), 145 QINT_TQCTL(0), 146 QINT_RQCTL(0), 147 PFINT_OICR_ENA, 148 QRX_ITR(0), 149 }; 150 151 struct ice_priv_flag { 152 char name[ETH_GSTRING_LEN]; 153 u32 bitno; /* bit position in pf->flags */ 154 }; 155 156 #define ICE_PRIV_FLAG(_name, _bitno) { \ 157 .name = _name, \ 158 .bitno = _bitno, \ 159 } 160 161 static const struct ice_priv_flag ice_gstrings_priv_flags[] = { 162 ICE_PRIV_FLAG("link-down-on-close", ICE_FLAG_LINK_DOWN_ON_CLOSE_ENA), 163 ICE_PRIV_FLAG("fw-lldp-agent", ICE_FLAG_FW_LLDP_AGENT), 164 ICE_PRIV_FLAG("vf-true-promisc-support", 165 ICE_FLAG_VF_TRUE_PROMISC_ENA), 166 ICE_PRIV_FLAG("mdd-auto-reset-vf", ICE_FLAG_MDD_AUTO_RESET_VF), 167 ICE_PRIV_FLAG("vf-vlan-pruning", ICE_FLAG_VF_VLAN_PRUNING), 168 ICE_PRIV_FLAG("legacy-rx", ICE_FLAG_LEGACY_RX), 169 }; 170 171 #define ICE_PRIV_FLAG_ARRAY_SIZE ARRAY_SIZE(ice_gstrings_priv_flags) 172 173 static void 174 __ice_get_drvinfo(struct net_device *netdev, struct ethtool_drvinfo *drvinfo, 175 struct ice_vsi *vsi) 176 { 177 struct ice_pf *pf = vsi->back; 178 struct ice_hw *hw = &pf->hw; 179 struct ice_orom_info *orom; 180 struct ice_nvm_info *nvm; 181 182 nvm = &hw->flash.nvm; 183 orom = &hw->flash.orom; 184 185 strscpy(drvinfo->driver, KBUILD_MODNAME, sizeof(drvinfo->driver)); 186 187 /* Display NVM version (from which the firmware version can be 188 * determined) which contains more pertinent information. 189 */ 190 snprintf(drvinfo->fw_version, sizeof(drvinfo->fw_version), 191 "%x.%02x 0x%x %d.%d.%d", nvm->major, nvm->minor, 192 nvm->eetrack, orom->major, orom->build, orom->patch); 193 194 strscpy(drvinfo->bus_info, pci_name(pf->pdev), 195 sizeof(drvinfo->bus_info)); 196 } 197 198 static void 199 ice_get_drvinfo(struct net_device *netdev, struct ethtool_drvinfo *drvinfo) 200 { 201 struct ice_netdev_priv *np = netdev_priv(netdev); 202 203 __ice_get_drvinfo(netdev, drvinfo, np->vsi); 204 drvinfo->n_priv_flags = ICE_PRIV_FLAG_ARRAY_SIZE; 205 } 206 207 static int ice_get_regs_len(struct net_device __always_unused *netdev) 208 { 209 return sizeof(ice_regs_dump_list); 210 } 211 212 static void 213 ice_get_regs(struct net_device *netdev, struct ethtool_regs *regs, void *p) 214 { 215 struct ice_netdev_priv *np = netdev_priv(netdev); 216 struct ice_pf *pf = np->vsi->back; 217 struct ice_hw *hw = &pf->hw; 218 u32 *regs_buf = (u32 *)p; 219 unsigned int i; 220 221 regs->version = 1; 222 223 for (i = 0; i < ARRAY_SIZE(ice_regs_dump_list); ++i) 224 regs_buf[i] = rd32(hw, ice_regs_dump_list[i]); 225 } 226 227 static u32 ice_get_msglevel(struct net_device *netdev) 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 (pf->hw.debug_mask) 234 netdev_info(netdev, "hw debug_mask: 0x%llX\n", 235 pf->hw.debug_mask); 236 #endif /* !CONFIG_DYNAMIC_DEBUG */ 237 238 return pf->msg_enable; 239 } 240 241 static void ice_set_msglevel(struct net_device *netdev, u32 data) 242 { 243 struct ice_netdev_priv *np = netdev_priv(netdev); 244 struct ice_pf *pf = np->vsi->back; 245 246 #ifndef CONFIG_DYNAMIC_DEBUG 247 if (ICE_DBG_USER & data) 248 pf->hw.debug_mask = data; 249 else 250 pf->msg_enable = data; 251 #else 252 pf->msg_enable = data; 253 #endif /* !CONFIG_DYNAMIC_DEBUG */ 254 } 255 256 static int ice_get_eeprom_len(struct net_device *netdev) 257 { 258 struct ice_netdev_priv *np = netdev_priv(netdev); 259 struct ice_pf *pf = np->vsi->back; 260 261 return (int)pf->hw.flash.flash_size; 262 } 263 264 static int 265 ice_get_eeprom(struct net_device *netdev, struct ethtool_eeprom *eeprom, 266 u8 *bytes) 267 { 268 struct ice_netdev_priv *np = netdev_priv(netdev); 269 struct ice_vsi *vsi = np->vsi; 270 struct ice_pf *pf = vsi->back; 271 struct ice_hw *hw = &pf->hw; 272 struct device *dev; 273 int ret; 274 u8 *buf; 275 276 dev = ice_pf_to_dev(pf); 277 278 eeprom->magic = hw->vendor_id | (hw->device_id << 16); 279 netdev_dbg(netdev, "GEEPROM cmd 0x%08x, offset 0x%08x, len 0x%08x\n", 280 eeprom->cmd, eeprom->offset, eeprom->len); 281 282 buf = kzalloc(eeprom->len, GFP_KERNEL); 283 if (!buf) 284 return -ENOMEM; 285 286 ret = ice_acquire_nvm(hw, ICE_RES_READ); 287 if (ret) { 288 dev_err(dev, "ice_acquire_nvm failed, err %d aq_err %s\n", 289 ret, ice_aq_str(hw->adminq.sq_last_status)); 290 goto out; 291 } 292 293 ret = ice_read_flat_nvm(hw, eeprom->offset, &eeprom->len, buf, 294 false); 295 if (ret) { 296 dev_err(dev, "ice_read_flat_nvm failed, err %d aq_err %s\n", 297 ret, ice_aq_str(hw->adminq.sq_last_status)); 298 goto release; 299 } 300 301 memcpy(bytes, buf, eeprom->len); 302 release: 303 ice_release_nvm(hw); 304 out: 305 kfree(buf); 306 return ret; 307 } 308 309 /** 310 * ice_active_vfs - check if there are any active VFs 311 * @pf: board private structure 312 * 313 * Returns true if an active VF is found, otherwise returns false 314 */ 315 static bool ice_active_vfs(struct ice_pf *pf) 316 { 317 bool active = false; 318 struct ice_vf *vf; 319 unsigned int bkt; 320 321 rcu_read_lock(); 322 ice_for_each_vf_rcu(pf, bkt, vf) { 323 if (test_bit(ICE_VF_STATE_ACTIVE, vf->vf_states)) { 324 active = true; 325 break; 326 } 327 } 328 rcu_read_unlock(); 329 330 return active; 331 } 332 333 /** 334 * ice_link_test - perform a link test on a given net_device 335 * @netdev: network interface device structure 336 * 337 * This function performs one of the self-tests required by ethtool. 338 * Returns 0 on success, non-zero on failure. 339 */ 340 static u64 ice_link_test(struct net_device *netdev) 341 { 342 struct ice_netdev_priv *np = netdev_priv(netdev); 343 bool link_up = false; 344 int status; 345 346 netdev_info(netdev, "link test\n"); 347 status = ice_get_link_status(np->vsi->port_info, &link_up); 348 if (status) { 349 netdev_err(netdev, "link query error, status = %d\n", 350 status); 351 return 1; 352 } 353 354 if (!link_up) 355 return 2; 356 357 return 0; 358 } 359 360 /** 361 * ice_eeprom_test - perform an EEPROM test on a given net_device 362 * @netdev: network interface device structure 363 * 364 * This function performs one of the self-tests required by ethtool. 365 * Returns 0 on success, non-zero on failure. 366 */ 367 static u64 ice_eeprom_test(struct net_device *netdev) 368 { 369 struct ice_netdev_priv *np = netdev_priv(netdev); 370 struct ice_pf *pf = np->vsi->back; 371 372 netdev_info(netdev, "EEPROM test\n"); 373 return !!(ice_nvm_validate_checksum(&pf->hw)); 374 } 375 376 /** 377 * ice_reg_pattern_test 378 * @hw: pointer to the HW struct 379 * @reg: reg to be tested 380 * @mask: bits to be touched 381 */ 382 static int ice_reg_pattern_test(struct ice_hw *hw, u32 reg, u32 mask) 383 { 384 struct ice_pf *pf = (struct ice_pf *)hw->back; 385 struct device *dev = ice_pf_to_dev(pf); 386 static const u32 patterns[] = { 387 0x5A5A5A5A, 0xA5A5A5A5, 388 0x00000000, 0xFFFFFFFF 389 }; 390 u32 val, orig_val; 391 unsigned int i; 392 393 orig_val = rd32(hw, reg); 394 for (i = 0; i < ARRAY_SIZE(patterns); ++i) { 395 u32 pattern = patterns[i] & mask; 396 397 wr32(hw, reg, pattern); 398 val = rd32(hw, reg); 399 if (val == pattern) 400 continue; 401 dev_err(dev, "%s: reg pattern test failed - reg 0x%08x pat 0x%08x val 0x%08x\n" 402 , __func__, reg, pattern, val); 403 return 1; 404 } 405 406 wr32(hw, reg, orig_val); 407 val = rd32(hw, reg); 408 if (val != orig_val) { 409 dev_err(dev, "%s: reg restore test failed - reg 0x%08x orig 0x%08x val 0x%08x\n" 410 , __func__, reg, orig_val, val); 411 return 1; 412 } 413 414 return 0; 415 } 416 417 /** 418 * ice_reg_test - perform a register test on a given net_device 419 * @netdev: network interface device structure 420 * 421 * This function performs one of the self-tests required by ethtool. 422 * Returns 0 on success, non-zero on failure. 423 */ 424 static u64 ice_reg_test(struct net_device *netdev) 425 { 426 struct ice_netdev_priv *np = netdev_priv(netdev); 427 struct ice_hw *hw = np->vsi->port_info->hw; 428 u32 int_elements = hw->func_caps.common_cap.num_msix_vectors ? 429 hw->func_caps.common_cap.num_msix_vectors - 1 : 1; 430 struct ice_diag_reg_test_info { 431 u32 address; 432 u32 mask; 433 u32 elem_num; 434 u32 elem_size; 435 } ice_reg_list[] = { 436 {GLINT_ITR(0, 0), 0x00000fff, int_elements, 437 GLINT_ITR(0, 1) - GLINT_ITR(0, 0)}, 438 {GLINT_ITR(1, 0), 0x00000fff, int_elements, 439 GLINT_ITR(1, 1) - GLINT_ITR(1, 0)}, 440 {GLINT_ITR(0, 0), 0x00000fff, int_elements, 441 GLINT_ITR(2, 1) - GLINT_ITR(2, 0)}, 442 {GLINT_CTL, 0xffff0001, 1, 0} 443 }; 444 unsigned int i; 445 446 netdev_dbg(netdev, "Register test\n"); 447 for (i = 0; i < ARRAY_SIZE(ice_reg_list); ++i) { 448 u32 j; 449 450 for (j = 0; j < ice_reg_list[i].elem_num; ++j) { 451 u32 mask = ice_reg_list[i].mask; 452 u32 reg = ice_reg_list[i].address + 453 (j * ice_reg_list[i].elem_size); 454 455 /* bail on failure (non-zero return) */ 456 if (ice_reg_pattern_test(hw, reg, mask)) 457 return 1; 458 } 459 } 460 461 return 0; 462 } 463 464 /** 465 * ice_lbtest_prepare_rings - configure Tx/Rx test rings 466 * @vsi: pointer to the VSI structure 467 * 468 * Function configures rings of a VSI for loopback test without 469 * enabling interrupts or informing the kernel about new queues. 470 * 471 * Returns 0 on success, negative on failure. 472 */ 473 static int ice_lbtest_prepare_rings(struct ice_vsi *vsi) 474 { 475 int status; 476 477 status = ice_vsi_setup_tx_rings(vsi); 478 if (status) 479 goto err_setup_tx_ring; 480 481 status = ice_vsi_setup_rx_rings(vsi); 482 if (status) 483 goto err_setup_rx_ring; 484 485 status = ice_vsi_cfg(vsi); 486 if (status) 487 goto err_setup_rx_ring; 488 489 status = ice_vsi_start_all_rx_rings(vsi); 490 if (status) 491 goto err_start_rx_ring; 492 493 return status; 494 495 err_start_rx_ring: 496 ice_vsi_free_rx_rings(vsi); 497 err_setup_rx_ring: 498 ice_vsi_stop_lan_tx_rings(vsi, ICE_NO_RESET, 0); 499 err_setup_tx_ring: 500 ice_vsi_free_tx_rings(vsi); 501 502 return status; 503 } 504 505 /** 506 * ice_lbtest_disable_rings - disable Tx/Rx test rings after loopback test 507 * @vsi: pointer to the VSI structure 508 * 509 * Function stops and frees VSI rings after a loopback test. 510 * Returns 0 on success, negative on failure. 511 */ 512 static int ice_lbtest_disable_rings(struct ice_vsi *vsi) 513 { 514 int status; 515 516 status = ice_vsi_stop_lan_tx_rings(vsi, ICE_NO_RESET, 0); 517 if (status) 518 netdev_err(vsi->netdev, "Failed to stop Tx rings, VSI %d error %d\n", 519 vsi->vsi_num, status); 520 521 status = ice_vsi_stop_all_rx_rings(vsi); 522 if (status) 523 netdev_err(vsi->netdev, "Failed to stop Rx rings, VSI %d error %d\n", 524 vsi->vsi_num, status); 525 526 ice_vsi_free_tx_rings(vsi); 527 ice_vsi_free_rx_rings(vsi); 528 529 return status; 530 } 531 532 /** 533 * ice_lbtest_create_frame - create test packet 534 * @pf: pointer to the PF structure 535 * @ret_data: allocated frame buffer 536 * @size: size of the packet data 537 * 538 * Function allocates a frame with a test pattern on specific offsets. 539 * Returns 0 on success, non-zero on failure. 540 */ 541 static int ice_lbtest_create_frame(struct ice_pf *pf, u8 **ret_data, u16 size) 542 { 543 u8 *data; 544 545 if (!pf) 546 return -EINVAL; 547 548 data = devm_kzalloc(ice_pf_to_dev(pf), size, GFP_KERNEL); 549 if (!data) 550 return -ENOMEM; 551 552 /* Since the ethernet test frame should always be at least 553 * 64 bytes long, fill some octets in the payload with test data. 554 */ 555 memset(data, 0xFF, size); 556 data[32] = 0xDE; 557 data[42] = 0xAD; 558 data[44] = 0xBE; 559 data[46] = 0xEF; 560 561 *ret_data = data; 562 563 return 0; 564 } 565 566 /** 567 * ice_lbtest_check_frame - verify received loopback frame 568 * @frame: pointer to the raw packet data 569 * 570 * Function verifies received test frame with a pattern. 571 * Returns true if frame matches the pattern, false otherwise. 572 */ 573 static bool ice_lbtest_check_frame(u8 *frame) 574 { 575 /* Validate bytes of a frame under offsets chosen earlier */ 576 if (frame[32] == 0xDE && 577 frame[42] == 0xAD && 578 frame[44] == 0xBE && 579 frame[46] == 0xEF && 580 frame[48] == 0xFF) 581 return true; 582 583 return false; 584 } 585 586 /** 587 * ice_diag_send - send test frames to the test ring 588 * @tx_ring: pointer to the transmit ring 589 * @data: pointer to the raw packet data 590 * @size: size of the packet to send 591 * 592 * Function sends loopback packets on a test Tx ring. 593 */ 594 static int ice_diag_send(struct ice_tx_ring *tx_ring, u8 *data, u16 size) 595 { 596 struct ice_tx_desc *tx_desc; 597 struct ice_tx_buf *tx_buf; 598 dma_addr_t dma; 599 u64 td_cmd; 600 601 tx_desc = ICE_TX_DESC(tx_ring, tx_ring->next_to_use); 602 tx_buf = &tx_ring->tx_buf[tx_ring->next_to_use]; 603 604 dma = dma_map_single(tx_ring->dev, data, size, DMA_TO_DEVICE); 605 if (dma_mapping_error(tx_ring->dev, dma)) 606 return -EINVAL; 607 608 tx_desc->buf_addr = cpu_to_le64(dma); 609 610 /* These flags are required for a descriptor to be pushed out */ 611 td_cmd = (u64)(ICE_TX_DESC_CMD_EOP | ICE_TX_DESC_CMD_RS); 612 tx_desc->cmd_type_offset_bsz = 613 cpu_to_le64(ICE_TX_DESC_DTYPE_DATA | 614 (td_cmd << ICE_TXD_QW1_CMD_S) | 615 ((u64)0 << ICE_TXD_QW1_OFFSET_S) | 616 ((u64)size << ICE_TXD_QW1_TX_BUF_SZ_S) | 617 ((u64)0 << ICE_TXD_QW1_L2TAG1_S)); 618 619 tx_buf->next_to_watch = tx_desc; 620 621 /* Force memory write to complete before letting h/w know 622 * there are new descriptors to fetch. 623 */ 624 wmb(); 625 626 tx_ring->next_to_use++; 627 if (tx_ring->next_to_use >= tx_ring->count) 628 tx_ring->next_to_use = 0; 629 630 writel_relaxed(tx_ring->next_to_use, tx_ring->tail); 631 632 /* Wait until the packets get transmitted to the receive queue. */ 633 usleep_range(1000, 2000); 634 dma_unmap_single(tx_ring->dev, dma, size, DMA_TO_DEVICE); 635 636 return 0; 637 } 638 639 #define ICE_LB_FRAME_SIZE 64 640 /** 641 * ice_lbtest_receive_frames - receive and verify test frames 642 * @rx_ring: pointer to the receive ring 643 * 644 * Function receives loopback packets and verify their correctness. 645 * Returns number of received valid frames. 646 */ 647 static int ice_lbtest_receive_frames(struct ice_rx_ring *rx_ring) 648 { 649 struct ice_rx_buf *rx_buf; 650 int valid_frames, i; 651 u8 *received_buf; 652 653 valid_frames = 0; 654 655 for (i = 0; i < rx_ring->count; i++) { 656 union ice_32b_rx_flex_desc *rx_desc; 657 658 rx_desc = ICE_RX_DESC(rx_ring, i); 659 660 if (!(rx_desc->wb.status_error0 & 661 cpu_to_le16(ICE_TX_DESC_CMD_EOP | ICE_TX_DESC_CMD_RS))) 662 continue; 663 664 rx_buf = &rx_ring->rx_buf[i]; 665 received_buf = page_address(rx_buf->page) + rx_buf->page_offset; 666 667 if (ice_lbtest_check_frame(received_buf)) 668 valid_frames++; 669 } 670 671 return valid_frames; 672 } 673 674 /** 675 * ice_loopback_test - perform a loopback test on a given net_device 676 * @netdev: network interface device structure 677 * 678 * This function performs one of the self-tests required by ethtool. 679 * Returns 0 on success, non-zero on failure. 680 */ 681 static u64 ice_loopback_test(struct net_device *netdev) 682 { 683 struct ice_netdev_priv *np = netdev_priv(netdev); 684 struct ice_vsi *orig_vsi = np->vsi, *test_vsi; 685 struct ice_pf *pf = orig_vsi->back; 686 u8 broadcast[ETH_ALEN], ret = 0; 687 int num_frames, valid_frames; 688 struct ice_tx_ring *tx_ring; 689 struct ice_rx_ring *rx_ring; 690 struct device *dev; 691 u8 *tx_frame; 692 int i; 693 694 dev = ice_pf_to_dev(pf); 695 netdev_info(netdev, "loopback test\n"); 696 697 test_vsi = ice_lb_vsi_setup(pf, pf->hw.port_info); 698 if (!test_vsi) { 699 netdev_err(netdev, "Failed to create a VSI for the loopback test\n"); 700 return 1; 701 } 702 703 test_vsi->netdev = netdev; 704 tx_ring = test_vsi->tx_rings[0]; 705 rx_ring = test_vsi->rx_rings[0]; 706 707 if (ice_lbtest_prepare_rings(test_vsi)) { 708 ret = 2; 709 goto lbtest_vsi_close; 710 } 711 712 if (ice_alloc_rx_bufs(rx_ring, rx_ring->count)) { 713 ret = 3; 714 goto lbtest_rings_dis; 715 } 716 717 /* Enable MAC loopback in firmware */ 718 if (ice_aq_set_mac_loopback(&pf->hw, true, NULL)) { 719 ret = 4; 720 goto lbtest_mac_dis; 721 } 722 723 /* Test VSI needs to receive broadcast packets */ 724 eth_broadcast_addr(broadcast); 725 if (ice_fltr_add_mac(test_vsi, broadcast, ICE_FWD_TO_VSI)) { 726 ret = 5; 727 goto lbtest_mac_dis; 728 } 729 730 if (ice_lbtest_create_frame(pf, &tx_frame, ICE_LB_FRAME_SIZE)) { 731 ret = 7; 732 goto remove_mac_filters; 733 } 734 735 num_frames = min_t(int, tx_ring->count, 32); 736 for (i = 0; i < num_frames; i++) { 737 if (ice_diag_send(tx_ring, tx_frame, ICE_LB_FRAME_SIZE)) { 738 ret = 8; 739 goto lbtest_free_frame; 740 } 741 } 742 743 valid_frames = ice_lbtest_receive_frames(rx_ring); 744 if (!valid_frames) 745 ret = 9; 746 else if (valid_frames != num_frames) 747 ret = 10; 748 749 lbtest_free_frame: 750 devm_kfree(dev, tx_frame); 751 remove_mac_filters: 752 if (ice_fltr_remove_mac(test_vsi, broadcast, ICE_FWD_TO_VSI)) 753 netdev_err(netdev, "Could not remove MAC filter for the test VSI\n"); 754 lbtest_mac_dis: 755 /* Disable MAC loopback after the test is completed. */ 756 if (ice_aq_set_mac_loopback(&pf->hw, false, NULL)) 757 netdev_err(netdev, "Could not disable MAC loopback\n"); 758 lbtest_rings_dis: 759 if (ice_lbtest_disable_rings(test_vsi)) 760 netdev_err(netdev, "Could not disable test rings\n"); 761 lbtest_vsi_close: 762 test_vsi->netdev = NULL; 763 if (ice_vsi_release(test_vsi)) 764 netdev_err(netdev, "Failed to remove the test VSI\n"); 765 766 return ret; 767 } 768 769 /** 770 * ice_intr_test - perform an interrupt test on a given net_device 771 * @netdev: network interface device structure 772 * 773 * This function performs one of the self-tests required by ethtool. 774 * Returns 0 on success, non-zero on failure. 775 */ 776 static u64 ice_intr_test(struct net_device *netdev) 777 { 778 struct ice_netdev_priv *np = netdev_priv(netdev); 779 struct ice_pf *pf = np->vsi->back; 780 u16 swic_old = pf->sw_int_count; 781 782 netdev_info(netdev, "interrupt test\n"); 783 784 wr32(&pf->hw, GLINT_DYN_CTL(pf->oicr_idx), 785 GLINT_DYN_CTL_SW_ITR_INDX_M | 786 GLINT_DYN_CTL_INTENA_MSK_M | 787 GLINT_DYN_CTL_SWINT_TRIG_M); 788 789 usleep_range(1000, 2000); 790 return (swic_old == pf->sw_int_count); 791 } 792 793 /** 794 * ice_self_test - handler function for performing a self-test by ethtool 795 * @netdev: network interface device structure 796 * @eth_test: ethtool_test structure 797 * @data: required by ethtool.self_test 798 * 799 * This function is called after invoking 'ethtool -t devname' command where 800 * devname is the name of the network device on which ethtool should operate. 801 * It performs a set of self-tests to check if a device works properly. 802 */ 803 static void 804 ice_self_test(struct net_device *netdev, struct ethtool_test *eth_test, 805 u64 *data) 806 { 807 struct ice_netdev_priv *np = netdev_priv(netdev); 808 bool if_running = netif_running(netdev); 809 struct ice_pf *pf = np->vsi->back; 810 struct device *dev; 811 812 dev = ice_pf_to_dev(pf); 813 814 if (eth_test->flags == ETH_TEST_FL_OFFLINE) { 815 netdev_info(netdev, "offline testing starting\n"); 816 817 set_bit(ICE_TESTING, pf->state); 818 819 if (ice_active_vfs(pf)) { 820 dev_warn(dev, "Please take active VFs and Netqueues offline and restart the adapter before running NIC diagnostics\n"); 821 data[ICE_ETH_TEST_REG] = 1; 822 data[ICE_ETH_TEST_EEPROM] = 1; 823 data[ICE_ETH_TEST_INTR] = 1; 824 data[ICE_ETH_TEST_LOOP] = 1; 825 data[ICE_ETH_TEST_LINK] = 1; 826 eth_test->flags |= ETH_TEST_FL_FAILED; 827 clear_bit(ICE_TESTING, pf->state); 828 goto skip_ol_tests; 829 } 830 /* If the device is online then take it offline */ 831 if (if_running) 832 /* indicate we're in test mode */ 833 ice_stop(netdev); 834 835 data[ICE_ETH_TEST_LINK] = ice_link_test(netdev); 836 data[ICE_ETH_TEST_EEPROM] = ice_eeprom_test(netdev); 837 data[ICE_ETH_TEST_INTR] = ice_intr_test(netdev); 838 data[ICE_ETH_TEST_LOOP] = ice_loopback_test(netdev); 839 data[ICE_ETH_TEST_REG] = ice_reg_test(netdev); 840 841 if (data[ICE_ETH_TEST_LINK] || 842 data[ICE_ETH_TEST_EEPROM] || 843 data[ICE_ETH_TEST_LOOP] || 844 data[ICE_ETH_TEST_INTR] || 845 data[ICE_ETH_TEST_REG]) 846 eth_test->flags |= ETH_TEST_FL_FAILED; 847 848 clear_bit(ICE_TESTING, pf->state); 849 850 if (if_running) { 851 int status = ice_open(netdev); 852 853 if (status) { 854 dev_err(dev, "Could not open device %s, err %d\n", 855 pf->int_name, status); 856 } 857 } 858 } else { 859 /* Online tests */ 860 netdev_info(netdev, "online testing starting\n"); 861 862 data[ICE_ETH_TEST_LINK] = ice_link_test(netdev); 863 if (data[ICE_ETH_TEST_LINK]) 864 eth_test->flags |= ETH_TEST_FL_FAILED; 865 866 /* Offline only tests, not run in online; pass by default */ 867 data[ICE_ETH_TEST_REG] = 0; 868 data[ICE_ETH_TEST_EEPROM] = 0; 869 data[ICE_ETH_TEST_INTR] = 0; 870 data[ICE_ETH_TEST_LOOP] = 0; 871 } 872 873 skip_ol_tests: 874 netdev_info(netdev, "testing finished\n"); 875 } 876 877 static void 878 __ice_get_strings(struct net_device *netdev, u32 stringset, u8 *data, 879 struct ice_vsi *vsi) 880 { 881 unsigned int i; 882 u8 *p = data; 883 884 switch (stringset) { 885 case ETH_SS_STATS: 886 for (i = 0; i < ICE_VSI_STATS_LEN; i++) 887 ethtool_sprintf(&p, 888 ice_gstrings_vsi_stats[i].stat_string); 889 890 if (ice_is_port_repr_netdev(netdev)) 891 return; 892 893 ice_for_each_alloc_txq(vsi, i) { 894 ethtool_sprintf(&p, "tx_queue_%u_packets", i); 895 ethtool_sprintf(&p, "tx_queue_%u_bytes", i); 896 } 897 898 ice_for_each_alloc_rxq(vsi, i) { 899 ethtool_sprintf(&p, "rx_queue_%u_packets", i); 900 ethtool_sprintf(&p, "rx_queue_%u_bytes", i); 901 } 902 903 if (vsi->type != ICE_VSI_PF) 904 return; 905 906 for (i = 0; i < ICE_PF_STATS_LEN; i++) 907 ethtool_sprintf(&p, 908 ice_gstrings_pf_stats[i].stat_string); 909 910 for (i = 0; i < ICE_MAX_USER_PRIORITY; i++) { 911 ethtool_sprintf(&p, "tx_priority_%u_xon.nic", i); 912 ethtool_sprintf(&p, "tx_priority_%u_xoff.nic", i); 913 } 914 for (i = 0; i < ICE_MAX_USER_PRIORITY; i++) { 915 ethtool_sprintf(&p, "rx_priority_%u_xon.nic", i); 916 ethtool_sprintf(&p, "rx_priority_%u_xoff.nic", i); 917 } 918 break; 919 case ETH_SS_TEST: 920 memcpy(data, ice_gstrings_test, ICE_TEST_LEN * ETH_GSTRING_LEN); 921 break; 922 case ETH_SS_PRIV_FLAGS: 923 for (i = 0; i < ICE_PRIV_FLAG_ARRAY_SIZE; i++) 924 ethtool_sprintf(&p, ice_gstrings_priv_flags[i].name); 925 break; 926 default: 927 break; 928 } 929 } 930 931 static void ice_get_strings(struct net_device *netdev, u32 stringset, u8 *data) 932 { 933 struct ice_netdev_priv *np = netdev_priv(netdev); 934 935 __ice_get_strings(netdev, stringset, data, np->vsi); 936 } 937 938 static int 939 ice_set_phys_id(struct net_device *netdev, enum ethtool_phys_id_state state) 940 { 941 struct ice_netdev_priv *np = netdev_priv(netdev); 942 bool led_active; 943 944 switch (state) { 945 case ETHTOOL_ID_ACTIVE: 946 led_active = true; 947 break; 948 case ETHTOOL_ID_INACTIVE: 949 led_active = false; 950 break; 951 default: 952 return -EINVAL; 953 } 954 955 if (ice_aq_set_port_id_led(np->vsi->port_info, !led_active, NULL)) 956 return -EIO; 957 958 return 0; 959 } 960 961 /** 962 * ice_set_fec_cfg - Set link FEC options 963 * @netdev: network interface device structure 964 * @req_fec: FEC mode to configure 965 */ 966 static int ice_set_fec_cfg(struct net_device *netdev, enum ice_fec_mode req_fec) 967 { 968 struct ice_netdev_priv *np = netdev_priv(netdev); 969 struct ice_aqc_set_phy_cfg_data config = { 0 }; 970 struct ice_vsi *vsi = np->vsi; 971 struct ice_port_info *pi; 972 973 pi = vsi->port_info; 974 if (!pi) 975 return -EOPNOTSUPP; 976 977 /* Changing the FEC parameters is not supported if not the PF VSI */ 978 if (vsi->type != ICE_VSI_PF) { 979 netdev_info(netdev, "Changing FEC parameters only supported for PF VSI\n"); 980 return -EOPNOTSUPP; 981 } 982 983 /* Proceed only if requesting different FEC mode */ 984 if (pi->phy.curr_user_fec_req == req_fec) 985 return 0; 986 987 /* Copy the current user PHY configuration. The current user PHY 988 * configuration is initialized during probe from PHY capabilities 989 * software mode, and updated on set PHY configuration. 990 */ 991 memcpy(&config, &pi->phy.curr_user_phy_cfg, sizeof(config)); 992 993 ice_cfg_phy_fec(pi, &config, req_fec); 994 config.caps |= ICE_AQ_PHY_ENA_AUTO_LINK_UPDT; 995 996 if (ice_aq_set_phy_cfg(pi->hw, pi, &config, NULL)) 997 return -EAGAIN; 998 999 /* Save requested FEC config */ 1000 pi->phy.curr_user_fec_req = req_fec; 1001 1002 return 0; 1003 } 1004 1005 /** 1006 * ice_set_fecparam - Set FEC link options 1007 * @netdev: network interface device structure 1008 * @fecparam: Ethtool structure to retrieve FEC parameters 1009 */ 1010 static int 1011 ice_set_fecparam(struct net_device *netdev, struct ethtool_fecparam *fecparam) 1012 { 1013 struct ice_netdev_priv *np = netdev_priv(netdev); 1014 struct ice_vsi *vsi = np->vsi; 1015 enum ice_fec_mode fec; 1016 1017 switch (fecparam->fec) { 1018 case ETHTOOL_FEC_AUTO: 1019 fec = ICE_FEC_AUTO; 1020 break; 1021 case ETHTOOL_FEC_RS: 1022 fec = ICE_FEC_RS; 1023 break; 1024 case ETHTOOL_FEC_BASER: 1025 fec = ICE_FEC_BASER; 1026 break; 1027 case ETHTOOL_FEC_OFF: 1028 case ETHTOOL_FEC_NONE: 1029 fec = ICE_FEC_NONE; 1030 break; 1031 default: 1032 dev_warn(ice_pf_to_dev(vsi->back), "Unsupported FEC mode: %d\n", 1033 fecparam->fec); 1034 return -EINVAL; 1035 } 1036 1037 return ice_set_fec_cfg(netdev, fec); 1038 } 1039 1040 /** 1041 * ice_get_fecparam - Get link FEC options 1042 * @netdev: network interface device structure 1043 * @fecparam: Ethtool structure to retrieve FEC parameters 1044 */ 1045 static int 1046 ice_get_fecparam(struct net_device *netdev, struct ethtool_fecparam *fecparam) 1047 { 1048 struct ice_netdev_priv *np = netdev_priv(netdev); 1049 struct ice_aqc_get_phy_caps_data *caps; 1050 struct ice_link_status *link_info; 1051 struct ice_vsi *vsi = np->vsi; 1052 struct ice_port_info *pi; 1053 int err; 1054 1055 pi = vsi->port_info; 1056 1057 if (!pi) 1058 return -EOPNOTSUPP; 1059 link_info = &pi->phy.link_info; 1060 1061 /* Set FEC mode based on negotiated link info */ 1062 switch (link_info->fec_info) { 1063 case ICE_AQ_LINK_25G_KR_FEC_EN: 1064 fecparam->active_fec = ETHTOOL_FEC_BASER; 1065 break; 1066 case ICE_AQ_LINK_25G_RS_528_FEC_EN: 1067 case ICE_AQ_LINK_25G_RS_544_FEC_EN: 1068 fecparam->active_fec = ETHTOOL_FEC_RS; 1069 break; 1070 default: 1071 fecparam->active_fec = ETHTOOL_FEC_OFF; 1072 break; 1073 } 1074 1075 caps = kzalloc(sizeof(*caps), GFP_KERNEL); 1076 if (!caps) 1077 return -ENOMEM; 1078 1079 err = ice_aq_get_phy_caps(pi, false, ICE_AQC_REPORT_TOPO_CAP_MEDIA, 1080 caps, NULL); 1081 if (err) 1082 goto done; 1083 1084 /* Set supported/configured FEC modes based on PHY capability */ 1085 if (caps->caps & ICE_AQC_PHY_EN_AUTO_FEC) 1086 fecparam->fec |= ETHTOOL_FEC_AUTO; 1087 if (caps->link_fec_options & ICE_AQC_PHY_FEC_10G_KR_40G_KR4_EN || 1088 caps->link_fec_options & ICE_AQC_PHY_FEC_10G_KR_40G_KR4_REQ || 1089 caps->link_fec_options & ICE_AQC_PHY_FEC_25G_KR_CLAUSE74_EN || 1090 caps->link_fec_options & ICE_AQC_PHY_FEC_25G_KR_REQ) 1091 fecparam->fec |= ETHTOOL_FEC_BASER; 1092 if (caps->link_fec_options & ICE_AQC_PHY_FEC_25G_RS_528_REQ || 1093 caps->link_fec_options & ICE_AQC_PHY_FEC_25G_RS_544_REQ || 1094 caps->link_fec_options & ICE_AQC_PHY_FEC_25G_RS_CLAUSE91_EN) 1095 fecparam->fec |= ETHTOOL_FEC_RS; 1096 if (caps->link_fec_options == 0) 1097 fecparam->fec |= ETHTOOL_FEC_OFF; 1098 1099 done: 1100 kfree(caps); 1101 return err; 1102 } 1103 1104 /** 1105 * ice_nway_reset - restart autonegotiation 1106 * @netdev: network interface device structure 1107 */ 1108 static int ice_nway_reset(struct net_device *netdev) 1109 { 1110 struct ice_netdev_priv *np = netdev_priv(netdev); 1111 struct ice_vsi *vsi = np->vsi; 1112 int err; 1113 1114 /* If VSI state is up, then restart autoneg with link up */ 1115 if (!test_bit(ICE_DOWN, vsi->back->state)) 1116 err = ice_set_link(vsi, true); 1117 else 1118 err = ice_set_link(vsi, false); 1119 1120 return err; 1121 } 1122 1123 /** 1124 * ice_get_priv_flags - report device private flags 1125 * @netdev: network interface device structure 1126 * 1127 * The get string set count and the string set should be matched for each 1128 * flag returned. Add new strings for each flag to the ice_gstrings_priv_flags 1129 * array. 1130 * 1131 * Returns a u32 bitmap of flags. 1132 */ 1133 static u32 ice_get_priv_flags(struct net_device *netdev) 1134 { 1135 struct ice_netdev_priv *np = netdev_priv(netdev); 1136 struct ice_vsi *vsi = np->vsi; 1137 struct ice_pf *pf = vsi->back; 1138 u32 i, ret_flags = 0; 1139 1140 for (i = 0; i < ICE_PRIV_FLAG_ARRAY_SIZE; i++) { 1141 const struct ice_priv_flag *priv_flag; 1142 1143 priv_flag = &ice_gstrings_priv_flags[i]; 1144 1145 if (test_bit(priv_flag->bitno, pf->flags)) 1146 ret_flags |= BIT(i); 1147 } 1148 1149 return ret_flags; 1150 } 1151 1152 /** 1153 * ice_set_priv_flags - set private flags 1154 * @netdev: network interface device structure 1155 * @flags: bit flags to be set 1156 */ 1157 static int ice_set_priv_flags(struct net_device *netdev, u32 flags) 1158 { 1159 struct ice_netdev_priv *np = netdev_priv(netdev); 1160 DECLARE_BITMAP(change_flags, ICE_PF_FLAGS_NBITS); 1161 DECLARE_BITMAP(orig_flags, ICE_PF_FLAGS_NBITS); 1162 struct ice_vsi *vsi = np->vsi; 1163 struct ice_pf *pf = vsi->back; 1164 struct device *dev; 1165 int ret = 0; 1166 u32 i; 1167 1168 if (flags > BIT(ICE_PRIV_FLAG_ARRAY_SIZE)) 1169 return -EINVAL; 1170 1171 dev = ice_pf_to_dev(pf); 1172 set_bit(ICE_FLAG_ETHTOOL_CTXT, pf->flags); 1173 1174 bitmap_copy(orig_flags, pf->flags, ICE_PF_FLAGS_NBITS); 1175 for (i = 0; i < ICE_PRIV_FLAG_ARRAY_SIZE; i++) { 1176 const struct ice_priv_flag *priv_flag; 1177 1178 priv_flag = &ice_gstrings_priv_flags[i]; 1179 1180 if (flags & BIT(i)) 1181 set_bit(priv_flag->bitno, pf->flags); 1182 else 1183 clear_bit(priv_flag->bitno, pf->flags); 1184 } 1185 1186 bitmap_xor(change_flags, pf->flags, orig_flags, ICE_PF_FLAGS_NBITS); 1187 1188 /* Do not allow change to link-down-on-close when Total Port Shutdown 1189 * is enabled. 1190 */ 1191 if (test_bit(ICE_FLAG_LINK_DOWN_ON_CLOSE_ENA, change_flags) && 1192 test_bit(ICE_FLAG_TOTAL_PORT_SHUTDOWN_ENA, pf->flags)) { 1193 dev_err(dev, "Setting link-down-on-close not supported on this port\n"); 1194 set_bit(ICE_FLAG_LINK_DOWN_ON_CLOSE_ENA, pf->flags); 1195 ret = -EINVAL; 1196 goto ethtool_exit; 1197 } 1198 1199 if (test_bit(ICE_FLAG_FW_LLDP_AGENT, change_flags)) { 1200 if (!test_bit(ICE_FLAG_FW_LLDP_AGENT, pf->flags)) { 1201 int 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 1227 pf->dcbx_cap &= ~DCB_CAP_DCBX_LLD_MANAGED; 1228 pf->dcbx_cap |= DCB_CAP_DCBX_HOST; 1229 } else { 1230 bool dcbx_agent_status; 1231 int status; 1232 1233 if (ice_get_pfc_mode(pf) == ICE_QOS_MODE_DSCP) { 1234 clear_bit(ICE_FLAG_FW_LLDP_AGENT, pf->flags); 1235 dev_err(dev, "QoS in L3 DSCP mode, FW Agent not allowed to start\n"); 1236 ret = -EOPNOTSUPP; 1237 goto ethtool_exit; 1238 } 1239 1240 /* Remove rule to direct LLDP packets to default VSI. 1241 * The FW LLDP engine will now be consuming them. 1242 */ 1243 ice_cfg_sw_lldp(vsi, false, false); 1244 1245 /* AQ command to start FW LLDP agent will return an 1246 * error if the agent is already started 1247 */ 1248 status = ice_aq_start_lldp(&pf->hw, true, NULL); 1249 if (status) 1250 dev_warn(dev, "Fail to start LLDP Agent\n"); 1251 1252 /* AQ command to start FW DCBX agent will fail if 1253 * the agent is already started 1254 */ 1255 status = ice_aq_start_stop_dcbx(&pf->hw, true, 1256 &dcbx_agent_status, 1257 NULL); 1258 if (status) 1259 dev_dbg(dev, "Failed to start FW DCBX\n"); 1260 1261 dev_info(dev, "FW DCBX agent is %s\n", 1262 dcbx_agent_status ? "ACTIVE" : "DISABLED"); 1263 1264 /* Failure to configure MIB change or init DCB is not 1265 * relevant to ethtool. Print notification that 1266 * registration/init failed but do not return error 1267 * state to ethtool 1268 */ 1269 status = ice_init_pf_dcb(pf, true); 1270 if (status) 1271 dev_dbg(dev, "Fail to init DCB\n"); 1272 1273 /* Register for MIB change events */ 1274 status = ice_cfg_lldp_mib_change(&pf->hw, true); 1275 if (status) 1276 dev_dbg(dev, "Fail to enable MIB change events\n"); 1277 1278 pf->dcbx_cap &= ~DCB_CAP_DCBX_HOST; 1279 pf->dcbx_cap |= DCB_CAP_DCBX_LLD_MANAGED; 1280 1281 ice_nway_reset(netdev); 1282 } 1283 } 1284 if (test_bit(ICE_FLAG_LEGACY_RX, change_flags)) { 1285 /* down and up VSI so that changes of Rx cfg are reflected. */ 1286 if (!test_and_set_bit(ICE_VSI_DOWN, vsi->state)) { 1287 ice_down(vsi); 1288 ice_up(vsi); 1289 } 1290 } 1291 /* don't allow modification of this flag when a single VF is in 1292 * promiscuous mode because it's not supported 1293 */ 1294 if (test_bit(ICE_FLAG_VF_TRUE_PROMISC_ENA, change_flags) && 1295 ice_is_any_vf_in_promisc(pf)) { 1296 dev_err(dev, "Changing vf-true-promisc-support flag while VF(s) are in promiscuous mode not supported\n"); 1297 /* toggle bit back to previous state */ 1298 change_bit(ICE_FLAG_VF_TRUE_PROMISC_ENA, pf->flags); 1299 ret = -EAGAIN; 1300 } 1301 1302 if (test_bit(ICE_FLAG_VF_VLAN_PRUNING, change_flags) && 1303 ice_has_vfs(pf)) { 1304 dev_err(dev, "vf-vlan-pruning: VLAN pruning cannot be changed while VFs are active.\n"); 1305 /* toggle bit back to previous state */ 1306 change_bit(ICE_FLAG_VF_VLAN_PRUNING, pf->flags); 1307 ret = -EOPNOTSUPP; 1308 } 1309 ethtool_exit: 1310 clear_bit(ICE_FLAG_ETHTOOL_CTXT, pf->flags); 1311 return ret; 1312 } 1313 1314 static int ice_get_sset_count(struct net_device *netdev, int sset) 1315 { 1316 switch (sset) { 1317 case ETH_SS_STATS: 1318 /* The number (and order) of strings reported *must* remain 1319 * constant for a given netdevice. This function must not 1320 * report a different number based on run time parameters 1321 * (such as the number of queues in use, or the setting of 1322 * a private ethtool flag). This is due to the nature of the 1323 * ethtool stats API. 1324 * 1325 * Userspace programs such as ethtool must make 3 separate 1326 * ioctl requests, one for size, one for the strings, and 1327 * finally one for the stats. Since these cross into 1328 * userspace, changes to the number or size could result in 1329 * undefined memory access or incorrect string<->value 1330 * correlations for statistics. 1331 * 1332 * Even if it appears to be safe, changes to the size or 1333 * order of strings will suffer from race conditions and are 1334 * not safe. 1335 */ 1336 return ICE_ALL_STATS_LEN(netdev); 1337 case ETH_SS_TEST: 1338 return ICE_TEST_LEN; 1339 case ETH_SS_PRIV_FLAGS: 1340 return ICE_PRIV_FLAG_ARRAY_SIZE; 1341 default: 1342 return -EOPNOTSUPP; 1343 } 1344 } 1345 1346 static void 1347 __ice_get_ethtool_stats(struct net_device *netdev, 1348 struct ethtool_stats __always_unused *stats, u64 *data, 1349 struct ice_vsi *vsi) 1350 { 1351 struct ice_pf *pf = vsi->back; 1352 struct ice_tx_ring *tx_ring; 1353 struct ice_rx_ring *rx_ring; 1354 unsigned int j; 1355 int i = 0; 1356 char *p; 1357 1358 ice_update_pf_stats(pf); 1359 ice_update_vsi_stats(vsi); 1360 1361 for (j = 0; j < ICE_VSI_STATS_LEN; j++) { 1362 p = (char *)vsi + ice_gstrings_vsi_stats[j].stat_offset; 1363 data[i++] = (ice_gstrings_vsi_stats[j].sizeof_stat == 1364 sizeof(u64)) ? *(u64 *)p : *(u32 *)p; 1365 } 1366 1367 if (ice_is_port_repr_netdev(netdev)) 1368 return; 1369 1370 /* populate per queue stats */ 1371 rcu_read_lock(); 1372 1373 ice_for_each_alloc_txq(vsi, j) { 1374 tx_ring = READ_ONCE(vsi->tx_rings[j]); 1375 if (tx_ring) { 1376 data[i++] = tx_ring->stats.pkts; 1377 data[i++] = tx_ring->stats.bytes; 1378 } else { 1379 data[i++] = 0; 1380 data[i++] = 0; 1381 } 1382 } 1383 1384 ice_for_each_alloc_rxq(vsi, j) { 1385 rx_ring = READ_ONCE(vsi->rx_rings[j]); 1386 if (rx_ring) { 1387 data[i++] = rx_ring->stats.pkts; 1388 data[i++] = rx_ring->stats.bytes; 1389 } else { 1390 data[i++] = 0; 1391 data[i++] = 0; 1392 } 1393 } 1394 1395 rcu_read_unlock(); 1396 1397 if (vsi->type != ICE_VSI_PF) 1398 return; 1399 1400 for (j = 0; j < ICE_PF_STATS_LEN; j++) { 1401 p = (char *)pf + ice_gstrings_pf_stats[j].stat_offset; 1402 data[i++] = (ice_gstrings_pf_stats[j].sizeof_stat == 1403 sizeof(u64)) ? *(u64 *)p : *(u32 *)p; 1404 } 1405 1406 for (j = 0; j < ICE_MAX_USER_PRIORITY; j++) { 1407 data[i++] = pf->stats.priority_xon_tx[j]; 1408 data[i++] = pf->stats.priority_xoff_tx[j]; 1409 } 1410 1411 for (j = 0; j < ICE_MAX_USER_PRIORITY; j++) { 1412 data[i++] = pf->stats.priority_xon_rx[j]; 1413 data[i++] = pf->stats.priority_xoff_rx[j]; 1414 } 1415 } 1416 1417 static void 1418 ice_get_ethtool_stats(struct net_device *netdev, 1419 struct ethtool_stats __always_unused *stats, u64 *data) 1420 { 1421 struct ice_netdev_priv *np = netdev_priv(netdev); 1422 1423 __ice_get_ethtool_stats(netdev, stats, data, np->vsi); 1424 } 1425 1426 #define ICE_PHY_TYPE_LOW_MASK_MIN_1G (ICE_PHY_TYPE_LOW_100BASE_TX | \ 1427 ICE_PHY_TYPE_LOW_100M_SGMII) 1428 1429 #define ICE_PHY_TYPE_LOW_MASK_MIN_25G (ICE_PHY_TYPE_LOW_MASK_MIN_1G | \ 1430 ICE_PHY_TYPE_LOW_1000BASE_T | \ 1431 ICE_PHY_TYPE_LOW_1000BASE_SX | \ 1432 ICE_PHY_TYPE_LOW_1000BASE_LX | \ 1433 ICE_PHY_TYPE_LOW_1000BASE_KX | \ 1434 ICE_PHY_TYPE_LOW_1G_SGMII | \ 1435 ICE_PHY_TYPE_LOW_2500BASE_T | \ 1436 ICE_PHY_TYPE_LOW_2500BASE_X | \ 1437 ICE_PHY_TYPE_LOW_2500BASE_KX | \ 1438 ICE_PHY_TYPE_LOW_5GBASE_T | \ 1439 ICE_PHY_TYPE_LOW_5GBASE_KR | \ 1440 ICE_PHY_TYPE_LOW_10GBASE_T | \ 1441 ICE_PHY_TYPE_LOW_10G_SFI_DA | \ 1442 ICE_PHY_TYPE_LOW_10GBASE_SR | \ 1443 ICE_PHY_TYPE_LOW_10GBASE_LR | \ 1444 ICE_PHY_TYPE_LOW_10GBASE_KR_CR1 | \ 1445 ICE_PHY_TYPE_LOW_10G_SFI_AOC_ACC | \ 1446 ICE_PHY_TYPE_LOW_10G_SFI_C2C) 1447 1448 #define ICE_PHY_TYPE_LOW_MASK_100G (ICE_PHY_TYPE_LOW_100GBASE_CR4 | \ 1449 ICE_PHY_TYPE_LOW_100GBASE_SR4 | \ 1450 ICE_PHY_TYPE_LOW_100GBASE_LR4 | \ 1451 ICE_PHY_TYPE_LOW_100GBASE_KR4 | \ 1452 ICE_PHY_TYPE_LOW_100G_CAUI4_AOC_ACC | \ 1453 ICE_PHY_TYPE_LOW_100G_CAUI4 | \ 1454 ICE_PHY_TYPE_LOW_100G_AUI4_AOC_ACC | \ 1455 ICE_PHY_TYPE_LOW_100G_AUI4 | \ 1456 ICE_PHY_TYPE_LOW_100GBASE_CR_PAM4 | \ 1457 ICE_PHY_TYPE_LOW_100GBASE_KR_PAM4 | \ 1458 ICE_PHY_TYPE_LOW_100GBASE_CP2 | \ 1459 ICE_PHY_TYPE_LOW_100GBASE_SR2 | \ 1460 ICE_PHY_TYPE_LOW_100GBASE_DR) 1461 1462 #define ICE_PHY_TYPE_HIGH_MASK_100G (ICE_PHY_TYPE_HIGH_100GBASE_KR2_PAM4 | \ 1463 ICE_PHY_TYPE_HIGH_100G_CAUI2_AOC_ACC |\ 1464 ICE_PHY_TYPE_HIGH_100G_CAUI2 | \ 1465 ICE_PHY_TYPE_HIGH_100G_AUI2_AOC_ACC | \ 1466 ICE_PHY_TYPE_HIGH_100G_AUI2) 1467 1468 /** 1469 * ice_mask_min_supported_speeds 1470 * @phy_types_high: PHY type high 1471 * @phy_types_low: PHY type low to apply minimum supported speeds mask 1472 * 1473 * Apply minimum supported speeds mask to PHY type low. These are the speeds 1474 * for ethtool supported link mode. 1475 */ 1476 static 1477 void ice_mask_min_supported_speeds(u64 phy_types_high, u64 *phy_types_low) 1478 { 1479 /* if QSFP connection with 100G speed, minimum supported speed is 25G */ 1480 if (*phy_types_low & ICE_PHY_TYPE_LOW_MASK_100G || 1481 phy_types_high & ICE_PHY_TYPE_HIGH_MASK_100G) 1482 *phy_types_low &= ~ICE_PHY_TYPE_LOW_MASK_MIN_25G; 1483 else 1484 *phy_types_low &= ~ICE_PHY_TYPE_LOW_MASK_MIN_1G; 1485 } 1486 1487 #define ice_ethtool_advertise_link_mode(aq_link_speed, ethtool_link_mode) \ 1488 do { \ 1489 if (req_speeds & (aq_link_speed) || \ 1490 (!req_speeds && \ 1491 (advert_phy_type_lo & phy_type_mask_lo || \ 1492 advert_phy_type_hi & phy_type_mask_hi))) \ 1493 ethtool_link_ksettings_add_link_mode(ks, advertising,\ 1494 ethtool_link_mode); \ 1495 } while (0) 1496 1497 /** 1498 * ice_phy_type_to_ethtool - convert the phy_types to ethtool link modes 1499 * @netdev: network interface device structure 1500 * @ks: ethtool link ksettings struct to fill out 1501 */ 1502 static void 1503 ice_phy_type_to_ethtool(struct net_device *netdev, 1504 struct ethtool_link_ksettings *ks) 1505 { 1506 struct ice_netdev_priv *np = netdev_priv(netdev); 1507 struct ice_vsi *vsi = np->vsi; 1508 struct ice_pf *pf = vsi->back; 1509 u64 advert_phy_type_lo = 0; 1510 u64 advert_phy_type_hi = 0; 1511 u64 phy_type_mask_lo = 0; 1512 u64 phy_type_mask_hi = 0; 1513 u64 phy_types_high = 0; 1514 u64 phy_types_low = 0; 1515 u16 req_speeds; 1516 1517 req_speeds = vsi->port_info->phy.link_info.req_speeds; 1518 1519 /* Check if lenient mode is supported and enabled, or in strict mode. 1520 * 1521 * In lenient mode the Supported link modes are the PHY types without 1522 * media. The Advertising link mode is either 1. the user requested 1523 * speed, 2. the override PHY mask, or 3. the PHY types with media. 1524 * 1525 * In strict mode Supported link mode are the PHY type with media, 1526 * and Advertising link modes are the media PHY type or the speed 1527 * requested by user. 1528 */ 1529 if (test_bit(ICE_FLAG_LINK_LENIENT_MODE_ENA, pf->flags)) { 1530 phy_types_low = le64_to_cpu(pf->nvm_phy_type_lo); 1531 phy_types_high = le64_to_cpu(pf->nvm_phy_type_hi); 1532 1533 ice_mask_min_supported_speeds(phy_types_high, &phy_types_low); 1534 /* determine advertised modes based on link override only 1535 * if it's supported and if the FW doesn't abstract the 1536 * driver from having to account for link overrides 1537 */ 1538 if (ice_fw_supports_link_override(&pf->hw) && 1539 !ice_fw_supports_report_dflt_cfg(&pf->hw)) { 1540 struct ice_link_default_override_tlv *ldo; 1541 1542 ldo = &pf->link_dflt_override; 1543 /* If override enabled and PHY mask set, then 1544 * Advertising link mode is the intersection of the PHY 1545 * types without media and the override PHY mask. 1546 */ 1547 if (ldo->options & ICE_LINK_OVERRIDE_EN && 1548 (ldo->phy_type_low || ldo->phy_type_high)) { 1549 advert_phy_type_lo = 1550 le64_to_cpu(pf->nvm_phy_type_lo) & 1551 ldo->phy_type_low; 1552 advert_phy_type_hi = 1553 le64_to_cpu(pf->nvm_phy_type_hi) & 1554 ldo->phy_type_high; 1555 } 1556 } 1557 } else { 1558 /* strict mode */ 1559 phy_types_low = vsi->port_info->phy.phy_type_low; 1560 phy_types_high = vsi->port_info->phy.phy_type_high; 1561 } 1562 1563 /* If Advertising link mode PHY type is not using override PHY type, 1564 * then use PHY type with media. 1565 */ 1566 if (!advert_phy_type_lo && !advert_phy_type_hi) { 1567 advert_phy_type_lo = vsi->port_info->phy.phy_type_low; 1568 advert_phy_type_hi = vsi->port_info->phy.phy_type_high; 1569 } 1570 1571 ethtool_link_ksettings_zero_link_mode(ks, supported); 1572 ethtool_link_ksettings_zero_link_mode(ks, advertising); 1573 1574 phy_type_mask_lo = ICE_PHY_TYPE_LOW_100BASE_TX | 1575 ICE_PHY_TYPE_LOW_100M_SGMII; 1576 if (phy_types_low & phy_type_mask_lo) { 1577 ethtool_link_ksettings_add_link_mode(ks, supported, 1578 100baseT_Full); 1579 1580 ice_ethtool_advertise_link_mode(ICE_AQ_LINK_SPEED_100MB, 1581 100baseT_Full); 1582 } 1583 1584 phy_type_mask_lo = ICE_PHY_TYPE_LOW_1000BASE_T | 1585 ICE_PHY_TYPE_LOW_1G_SGMII; 1586 if (phy_types_low & phy_type_mask_lo) { 1587 ethtool_link_ksettings_add_link_mode(ks, supported, 1588 1000baseT_Full); 1589 ice_ethtool_advertise_link_mode(ICE_AQ_LINK_SPEED_1000MB, 1590 1000baseT_Full); 1591 } 1592 1593 phy_type_mask_lo = ICE_PHY_TYPE_LOW_1000BASE_KX; 1594 if (phy_types_low & phy_type_mask_lo) { 1595 ethtool_link_ksettings_add_link_mode(ks, supported, 1596 1000baseKX_Full); 1597 ice_ethtool_advertise_link_mode(ICE_AQ_LINK_SPEED_1000MB, 1598 1000baseKX_Full); 1599 } 1600 1601 phy_type_mask_lo = ICE_PHY_TYPE_LOW_1000BASE_SX | 1602 ICE_PHY_TYPE_LOW_1000BASE_LX; 1603 if (phy_types_low & phy_type_mask_lo) { 1604 ethtool_link_ksettings_add_link_mode(ks, supported, 1605 1000baseX_Full); 1606 ice_ethtool_advertise_link_mode(ICE_AQ_LINK_SPEED_1000MB, 1607 1000baseX_Full); 1608 } 1609 1610 phy_type_mask_lo = ICE_PHY_TYPE_LOW_2500BASE_T; 1611 if (phy_types_low & phy_type_mask_lo) { 1612 ethtool_link_ksettings_add_link_mode(ks, supported, 1613 2500baseT_Full); 1614 ice_ethtool_advertise_link_mode(ICE_AQ_LINK_SPEED_2500MB, 1615 2500baseT_Full); 1616 } 1617 1618 phy_type_mask_lo = ICE_PHY_TYPE_LOW_2500BASE_X | 1619 ICE_PHY_TYPE_LOW_2500BASE_KX; 1620 if (phy_types_low & phy_type_mask_lo) { 1621 ethtool_link_ksettings_add_link_mode(ks, supported, 1622 2500baseX_Full); 1623 ice_ethtool_advertise_link_mode(ICE_AQ_LINK_SPEED_2500MB, 1624 2500baseX_Full); 1625 } 1626 1627 phy_type_mask_lo = ICE_PHY_TYPE_LOW_5GBASE_T | 1628 ICE_PHY_TYPE_LOW_5GBASE_KR; 1629 if (phy_types_low & phy_type_mask_lo) { 1630 ethtool_link_ksettings_add_link_mode(ks, supported, 1631 5000baseT_Full); 1632 ice_ethtool_advertise_link_mode(ICE_AQ_LINK_SPEED_5GB, 1633 5000baseT_Full); 1634 } 1635 1636 phy_type_mask_lo = ICE_PHY_TYPE_LOW_10GBASE_T | 1637 ICE_PHY_TYPE_LOW_10G_SFI_DA | 1638 ICE_PHY_TYPE_LOW_10G_SFI_AOC_ACC | 1639 ICE_PHY_TYPE_LOW_10G_SFI_C2C; 1640 if (phy_types_low & phy_type_mask_lo) { 1641 ethtool_link_ksettings_add_link_mode(ks, supported, 1642 10000baseT_Full); 1643 ice_ethtool_advertise_link_mode(ICE_AQ_LINK_SPEED_10GB, 1644 10000baseT_Full); 1645 } 1646 1647 phy_type_mask_lo = ICE_PHY_TYPE_LOW_10GBASE_KR_CR1; 1648 if (phy_types_low & phy_type_mask_lo) { 1649 ethtool_link_ksettings_add_link_mode(ks, supported, 1650 10000baseKR_Full); 1651 ice_ethtool_advertise_link_mode(ICE_AQ_LINK_SPEED_10GB, 1652 10000baseKR_Full); 1653 } 1654 1655 phy_type_mask_lo = ICE_PHY_TYPE_LOW_10GBASE_SR; 1656 if (phy_types_low & phy_type_mask_lo) { 1657 ethtool_link_ksettings_add_link_mode(ks, supported, 1658 10000baseSR_Full); 1659 ice_ethtool_advertise_link_mode(ICE_AQ_LINK_SPEED_10GB, 1660 10000baseSR_Full); 1661 } 1662 1663 phy_type_mask_lo = ICE_PHY_TYPE_LOW_10GBASE_LR; 1664 if (phy_types_low & phy_type_mask_lo) { 1665 ethtool_link_ksettings_add_link_mode(ks, supported, 1666 10000baseLR_Full); 1667 ice_ethtool_advertise_link_mode(ICE_AQ_LINK_SPEED_10GB, 1668 10000baseLR_Full); 1669 } 1670 1671 phy_type_mask_lo = ICE_PHY_TYPE_LOW_25GBASE_T | 1672 ICE_PHY_TYPE_LOW_25GBASE_CR | 1673 ICE_PHY_TYPE_LOW_25GBASE_CR_S | 1674 ICE_PHY_TYPE_LOW_25GBASE_CR1 | 1675 ICE_PHY_TYPE_LOW_25G_AUI_AOC_ACC | 1676 ICE_PHY_TYPE_LOW_25G_AUI_C2C; 1677 if (phy_types_low & phy_type_mask_lo) { 1678 ethtool_link_ksettings_add_link_mode(ks, supported, 1679 25000baseCR_Full); 1680 ice_ethtool_advertise_link_mode(ICE_AQ_LINK_SPEED_25GB, 1681 25000baseCR_Full); 1682 } 1683 1684 phy_type_mask_lo = ICE_PHY_TYPE_LOW_25GBASE_SR | 1685 ICE_PHY_TYPE_LOW_25GBASE_LR; 1686 if (phy_types_low & phy_type_mask_lo) { 1687 ethtool_link_ksettings_add_link_mode(ks, supported, 1688 25000baseSR_Full); 1689 ice_ethtool_advertise_link_mode(ICE_AQ_LINK_SPEED_25GB, 1690 25000baseSR_Full); 1691 } 1692 1693 phy_type_mask_lo = ICE_PHY_TYPE_LOW_25GBASE_KR | 1694 ICE_PHY_TYPE_LOW_25GBASE_KR_S | 1695 ICE_PHY_TYPE_LOW_25GBASE_KR1; 1696 if (phy_types_low & phy_type_mask_lo) { 1697 ethtool_link_ksettings_add_link_mode(ks, supported, 1698 25000baseKR_Full); 1699 ice_ethtool_advertise_link_mode(ICE_AQ_LINK_SPEED_25GB, 1700 25000baseKR_Full); 1701 } 1702 1703 phy_type_mask_lo = ICE_PHY_TYPE_LOW_40GBASE_KR4; 1704 if (phy_types_low & phy_type_mask_lo) { 1705 ethtool_link_ksettings_add_link_mode(ks, supported, 1706 40000baseKR4_Full); 1707 ice_ethtool_advertise_link_mode(ICE_AQ_LINK_SPEED_40GB, 1708 40000baseKR4_Full); 1709 } 1710 1711 phy_type_mask_lo = ICE_PHY_TYPE_LOW_40GBASE_CR4 | 1712 ICE_PHY_TYPE_LOW_40G_XLAUI_AOC_ACC | 1713 ICE_PHY_TYPE_LOW_40G_XLAUI; 1714 if (phy_types_low & phy_type_mask_lo) { 1715 ethtool_link_ksettings_add_link_mode(ks, supported, 1716 40000baseCR4_Full); 1717 ice_ethtool_advertise_link_mode(ICE_AQ_LINK_SPEED_40GB, 1718 40000baseCR4_Full); 1719 } 1720 1721 phy_type_mask_lo = ICE_PHY_TYPE_LOW_40GBASE_SR4; 1722 if (phy_types_low & phy_type_mask_lo) { 1723 ethtool_link_ksettings_add_link_mode(ks, supported, 1724 40000baseSR4_Full); 1725 ice_ethtool_advertise_link_mode(ICE_AQ_LINK_SPEED_40GB, 1726 40000baseSR4_Full); 1727 } 1728 1729 phy_type_mask_lo = ICE_PHY_TYPE_LOW_40GBASE_LR4; 1730 if (phy_types_low & phy_type_mask_lo) { 1731 ethtool_link_ksettings_add_link_mode(ks, supported, 1732 40000baseLR4_Full); 1733 ice_ethtool_advertise_link_mode(ICE_AQ_LINK_SPEED_40GB, 1734 40000baseLR4_Full); 1735 } 1736 1737 phy_type_mask_lo = ICE_PHY_TYPE_LOW_50GBASE_CR2 | 1738 ICE_PHY_TYPE_LOW_50G_LAUI2_AOC_ACC | 1739 ICE_PHY_TYPE_LOW_50G_LAUI2 | 1740 ICE_PHY_TYPE_LOW_50G_AUI2_AOC_ACC | 1741 ICE_PHY_TYPE_LOW_50G_AUI2 | 1742 ICE_PHY_TYPE_LOW_50GBASE_CP | 1743 ICE_PHY_TYPE_LOW_50GBASE_SR | 1744 ICE_PHY_TYPE_LOW_50G_AUI1_AOC_ACC | 1745 ICE_PHY_TYPE_LOW_50G_AUI1; 1746 if (phy_types_low & phy_type_mask_lo) { 1747 ethtool_link_ksettings_add_link_mode(ks, supported, 1748 50000baseCR2_Full); 1749 ice_ethtool_advertise_link_mode(ICE_AQ_LINK_SPEED_50GB, 1750 50000baseCR2_Full); 1751 } 1752 1753 phy_type_mask_lo = ICE_PHY_TYPE_LOW_50GBASE_KR2 | 1754 ICE_PHY_TYPE_LOW_50GBASE_KR_PAM4; 1755 if (phy_types_low & phy_type_mask_lo) { 1756 ethtool_link_ksettings_add_link_mode(ks, supported, 1757 50000baseKR2_Full); 1758 ice_ethtool_advertise_link_mode(ICE_AQ_LINK_SPEED_50GB, 1759 50000baseKR2_Full); 1760 } 1761 1762 phy_type_mask_lo = ICE_PHY_TYPE_LOW_50GBASE_SR2 | 1763 ICE_PHY_TYPE_LOW_50GBASE_LR2 | 1764 ICE_PHY_TYPE_LOW_50GBASE_FR | 1765 ICE_PHY_TYPE_LOW_50GBASE_LR; 1766 if (phy_types_low & phy_type_mask_lo) { 1767 ethtool_link_ksettings_add_link_mode(ks, supported, 1768 50000baseSR2_Full); 1769 ice_ethtool_advertise_link_mode(ICE_AQ_LINK_SPEED_50GB, 1770 50000baseSR2_Full); 1771 } 1772 1773 phy_type_mask_lo = ICE_PHY_TYPE_LOW_100GBASE_CR4 | 1774 ICE_PHY_TYPE_LOW_100G_CAUI4_AOC_ACC | 1775 ICE_PHY_TYPE_LOW_100G_CAUI4 | 1776 ICE_PHY_TYPE_LOW_100G_AUI4_AOC_ACC | 1777 ICE_PHY_TYPE_LOW_100G_AUI4 | 1778 ICE_PHY_TYPE_LOW_100GBASE_CR_PAM4 | 1779 ICE_PHY_TYPE_LOW_100GBASE_CP2; 1780 phy_type_mask_hi = ICE_PHY_TYPE_HIGH_100G_CAUI2_AOC_ACC | 1781 ICE_PHY_TYPE_HIGH_100G_CAUI2 | 1782 ICE_PHY_TYPE_HIGH_100G_AUI2_AOC_ACC | 1783 ICE_PHY_TYPE_HIGH_100G_AUI2; 1784 if (phy_types_low & phy_type_mask_lo || 1785 phy_types_high & phy_type_mask_hi) { 1786 ethtool_link_ksettings_add_link_mode(ks, supported, 1787 100000baseCR4_Full); 1788 ice_ethtool_advertise_link_mode(ICE_AQ_LINK_SPEED_100GB, 1789 100000baseCR4_Full); 1790 } 1791 1792 phy_type_mask_lo = ICE_PHY_TYPE_LOW_100GBASE_SR4 | 1793 ICE_PHY_TYPE_LOW_100GBASE_SR2; 1794 if (phy_types_low & phy_type_mask_lo) { 1795 ethtool_link_ksettings_add_link_mode(ks, supported, 1796 100000baseSR4_Full); 1797 ice_ethtool_advertise_link_mode(ICE_AQ_LINK_SPEED_100GB, 1798 100000baseSR4_Full); 1799 } 1800 1801 phy_type_mask_lo = ICE_PHY_TYPE_LOW_100GBASE_LR4 | 1802 ICE_PHY_TYPE_LOW_100GBASE_DR; 1803 if (phy_types_low & phy_type_mask_lo) { 1804 ethtool_link_ksettings_add_link_mode(ks, supported, 1805 100000baseLR4_ER4_Full); 1806 ice_ethtool_advertise_link_mode(ICE_AQ_LINK_SPEED_100GB, 1807 100000baseLR4_ER4_Full); 1808 } 1809 1810 phy_type_mask_lo = ICE_PHY_TYPE_LOW_100GBASE_KR4 | 1811 ICE_PHY_TYPE_LOW_100GBASE_KR_PAM4; 1812 phy_type_mask_hi = ICE_PHY_TYPE_HIGH_100GBASE_KR2_PAM4; 1813 if (phy_types_low & phy_type_mask_lo || 1814 phy_types_high & phy_type_mask_hi) { 1815 ethtool_link_ksettings_add_link_mode(ks, supported, 1816 100000baseKR4_Full); 1817 ice_ethtool_advertise_link_mode(ICE_AQ_LINK_SPEED_100GB, 1818 100000baseKR4_Full); 1819 } 1820 } 1821 1822 #define TEST_SET_BITS_TIMEOUT 50 1823 #define TEST_SET_BITS_SLEEP_MAX 2000 1824 #define TEST_SET_BITS_SLEEP_MIN 1000 1825 1826 /** 1827 * ice_get_settings_link_up - Get Link settings for when link is up 1828 * @ks: ethtool ksettings to fill in 1829 * @netdev: network interface device structure 1830 */ 1831 static void 1832 ice_get_settings_link_up(struct ethtool_link_ksettings *ks, 1833 struct net_device *netdev) 1834 { 1835 struct ice_netdev_priv *np = netdev_priv(netdev); 1836 struct ice_port_info *pi = np->vsi->port_info; 1837 struct ice_link_status *link_info; 1838 struct ice_vsi *vsi = np->vsi; 1839 1840 link_info = &vsi->port_info->phy.link_info; 1841 1842 /* Get supported and advertised settings from PHY ability with media */ 1843 ice_phy_type_to_ethtool(netdev, ks); 1844 1845 switch (link_info->link_speed) { 1846 case ICE_AQ_LINK_SPEED_100GB: 1847 ks->base.speed = SPEED_100000; 1848 break; 1849 case ICE_AQ_LINK_SPEED_50GB: 1850 ks->base.speed = SPEED_50000; 1851 break; 1852 case ICE_AQ_LINK_SPEED_40GB: 1853 ks->base.speed = SPEED_40000; 1854 break; 1855 case ICE_AQ_LINK_SPEED_25GB: 1856 ks->base.speed = SPEED_25000; 1857 break; 1858 case ICE_AQ_LINK_SPEED_20GB: 1859 ks->base.speed = SPEED_20000; 1860 break; 1861 case ICE_AQ_LINK_SPEED_10GB: 1862 ks->base.speed = SPEED_10000; 1863 break; 1864 case ICE_AQ_LINK_SPEED_5GB: 1865 ks->base.speed = SPEED_5000; 1866 break; 1867 case ICE_AQ_LINK_SPEED_2500MB: 1868 ks->base.speed = SPEED_2500; 1869 break; 1870 case ICE_AQ_LINK_SPEED_1000MB: 1871 ks->base.speed = SPEED_1000; 1872 break; 1873 case ICE_AQ_LINK_SPEED_100MB: 1874 ks->base.speed = SPEED_100; 1875 break; 1876 default: 1877 netdev_info(netdev, "WARNING: Unrecognized link_speed (0x%x).\n", 1878 link_info->link_speed); 1879 break; 1880 } 1881 ks->base.duplex = DUPLEX_FULL; 1882 1883 if (link_info->an_info & ICE_AQ_AN_COMPLETED) 1884 ethtool_link_ksettings_add_link_mode(ks, lp_advertising, 1885 Autoneg); 1886 1887 /* Set flow control negotiated Rx/Tx pause */ 1888 switch (pi->fc.current_mode) { 1889 case ICE_FC_FULL: 1890 ethtool_link_ksettings_add_link_mode(ks, lp_advertising, Pause); 1891 break; 1892 case ICE_FC_TX_PAUSE: 1893 ethtool_link_ksettings_add_link_mode(ks, lp_advertising, Pause); 1894 ethtool_link_ksettings_add_link_mode(ks, lp_advertising, 1895 Asym_Pause); 1896 break; 1897 case ICE_FC_RX_PAUSE: 1898 ethtool_link_ksettings_add_link_mode(ks, lp_advertising, 1899 Asym_Pause); 1900 break; 1901 case ICE_FC_PFC: 1902 default: 1903 ethtool_link_ksettings_del_link_mode(ks, lp_advertising, Pause); 1904 ethtool_link_ksettings_del_link_mode(ks, lp_advertising, 1905 Asym_Pause); 1906 break; 1907 } 1908 } 1909 1910 /** 1911 * ice_get_settings_link_down - Get the Link settings when link is down 1912 * @ks: ethtool ksettings to fill in 1913 * @netdev: network interface device structure 1914 * 1915 * Reports link settings that can be determined when link is down 1916 */ 1917 static void 1918 ice_get_settings_link_down(struct ethtool_link_ksettings *ks, 1919 struct net_device *netdev) 1920 { 1921 /* link is down and the driver needs to fall back on 1922 * supported PHY types to figure out what info to display 1923 */ 1924 ice_phy_type_to_ethtool(netdev, ks); 1925 1926 /* With no link, speed and duplex are unknown */ 1927 ks->base.speed = SPEED_UNKNOWN; 1928 ks->base.duplex = DUPLEX_UNKNOWN; 1929 } 1930 1931 /** 1932 * ice_get_link_ksettings - Get Link Speed and Duplex settings 1933 * @netdev: network interface device structure 1934 * @ks: ethtool ksettings 1935 * 1936 * Reports speed/duplex settings based on media_type 1937 */ 1938 static int 1939 ice_get_link_ksettings(struct net_device *netdev, 1940 struct ethtool_link_ksettings *ks) 1941 { 1942 struct ice_netdev_priv *np = netdev_priv(netdev); 1943 struct ice_aqc_get_phy_caps_data *caps; 1944 struct ice_link_status *hw_link_info; 1945 struct ice_vsi *vsi = np->vsi; 1946 int err; 1947 1948 ethtool_link_ksettings_zero_link_mode(ks, supported); 1949 ethtool_link_ksettings_zero_link_mode(ks, advertising); 1950 ethtool_link_ksettings_zero_link_mode(ks, lp_advertising); 1951 hw_link_info = &vsi->port_info->phy.link_info; 1952 1953 /* set speed and duplex */ 1954 if (hw_link_info->link_info & ICE_AQ_LINK_UP) 1955 ice_get_settings_link_up(ks, netdev); 1956 else 1957 ice_get_settings_link_down(ks, netdev); 1958 1959 /* set autoneg settings */ 1960 ks->base.autoneg = (hw_link_info->an_info & ICE_AQ_AN_COMPLETED) ? 1961 AUTONEG_ENABLE : AUTONEG_DISABLE; 1962 1963 /* set media type settings */ 1964 switch (vsi->port_info->phy.media_type) { 1965 case ICE_MEDIA_FIBER: 1966 ethtool_link_ksettings_add_link_mode(ks, supported, FIBRE); 1967 ks->base.port = PORT_FIBRE; 1968 break; 1969 case ICE_MEDIA_BASET: 1970 ethtool_link_ksettings_add_link_mode(ks, supported, TP); 1971 ethtool_link_ksettings_add_link_mode(ks, advertising, TP); 1972 ks->base.port = PORT_TP; 1973 break; 1974 case ICE_MEDIA_BACKPLANE: 1975 ethtool_link_ksettings_add_link_mode(ks, supported, Backplane); 1976 ethtool_link_ksettings_add_link_mode(ks, advertising, 1977 Backplane); 1978 ks->base.port = PORT_NONE; 1979 break; 1980 case ICE_MEDIA_DA: 1981 ethtool_link_ksettings_add_link_mode(ks, supported, FIBRE); 1982 ethtool_link_ksettings_add_link_mode(ks, advertising, FIBRE); 1983 ks->base.port = PORT_DA; 1984 break; 1985 default: 1986 ks->base.port = PORT_OTHER; 1987 break; 1988 } 1989 1990 /* flow control is symmetric and always supported */ 1991 ethtool_link_ksettings_add_link_mode(ks, supported, Pause); 1992 1993 caps = kzalloc(sizeof(*caps), GFP_KERNEL); 1994 if (!caps) 1995 return -ENOMEM; 1996 1997 err = ice_aq_get_phy_caps(vsi->port_info, false, 1998 ICE_AQC_REPORT_ACTIVE_CFG, caps, NULL); 1999 if (err) 2000 goto done; 2001 2002 /* Set the advertised flow control based on the PHY capability */ 2003 if ((caps->caps & ICE_AQC_PHY_EN_TX_LINK_PAUSE) && 2004 (caps->caps & ICE_AQC_PHY_EN_RX_LINK_PAUSE)) { 2005 ethtool_link_ksettings_add_link_mode(ks, advertising, Pause); 2006 ethtool_link_ksettings_add_link_mode(ks, advertising, 2007 Asym_Pause); 2008 } else if (caps->caps & ICE_AQC_PHY_EN_TX_LINK_PAUSE) { 2009 ethtool_link_ksettings_add_link_mode(ks, advertising, 2010 Asym_Pause); 2011 } else if (caps->caps & ICE_AQC_PHY_EN_RX_LINK_PAUSE) { 2012 ethtool_link_ksettings_add_link_mode(ks, advertising, Pause); 2013 ethtool_link_ksettings_add_link_mode(ks, advertising, 2014 Asym_Pause); 2015 } else { 2016 ethtool_link_ksettings_del_link_mode(ks, advertising, Pause); 2017 ethtool_link_ksettings_del_link_mode(ks, advertising, 2018 Asym_Pause); 2019 } 2020 2021 /* Set advertised FEC modes based on PHY capability */ 2022 ethtool_link_ksettings_add_link_mode(ks, advertising, FEC_NONE); 2023 2024 if (caps->link_fec_options & ICE_AQC_PHY_FEC_10G_KR_40G_KR4_REQ || 2025 caps->link_fec_options & ICE_AQC_PHY_FEC_25G_KR_REQ) 2026 ethtool_link_ksettings_add_link_mode(ks, advertising, 2027 FEC_BASER); 2028 if (caps->link_fec_options & ICE_AQC_PHY_FEC_25G_RS_528_REQ || 2029 caps->link_fec_options & ICE_AQC_PHY_FEC_25G_RS_544_REQ) 2030 ethtool_link_ksettings_add_link_mode(ks, advertising, FEC_RS); 2031 2032 err = ice_aq_get_phy_caps(vsi->port_info, false, 2033 ICE_AQC_REPORT_TOPO_CAP_MEDIA, caps, NULL); 2034 if (err) 2035 goto done; 2036 2037 /* Set supported FEC modes based on PHY capability */ 2038 ethtool_link_ksettings_add_link_mode(ks, supported, FEC_NONE); 2039 2040 if (caps->link_fec_options & ICE_AQC_PHY_FEC_10G_KR_40G_KR4_EN || 2041 caps->link_fec_options & ICE_AQC_PHY_FEC_25G_KR_CLAUSE74_EN) 2042 ethtool_link_ksettings_add_link_mode(ks, supported, FEC_BASER); 2043 if (caps->link_fec_options & ICE_AQC_PHY_FEC_25G_RS_CLAUSE91_EN) 2044 ethtool_link_ksettings_add_link_mode(ks, supported, FEC_RS); 2045 2046 /* Set supported and advertised autoneg */ 2047 if (ice_is_phy_caps_an_enabled(caps)) { 2048 ethtool_link_ksettings_add_link_mode(ks, supported, Autoneg); 2049 ethtool_link_ksettings_add_link_mode(ks, advertising, Autoneg); 2050 } 2051 2052 done: 2053 kfree(caps); 2054 return err; 2055 } 2056 2057 /** 2058 * ice_ksettings_find_adv_link_speed - Find advertising link speed 2059 * @ks: ethtool ksettings 2060 */ 2061 static u16 2062 ice_ksettings_find_adv_link_speed(const struct ethtool_link_ksettings *ks) 2063 { 2064 u16 adv_link_speed = 0; 2065 2066 if (ethtool_link_ksettings_test_link_mode(ks, advertising, 2067 100baseT_Full)) 2068 adv_link_speed |= ICE_AQ_LINK_SPEED_100MB; 2069 if (ethtool_link_ksettings_test_link_mode(ks, advertising, 2070 1000baseX_Full)) 2071 adv_link_speed |= ICE_AQ_LINK_SPEED_1000MB; 2072 if (ethtool_link_ksettings_test_link_mode(ks, advertising, 2073 1000baseT_Full) || 2074 ethtool_link_ksettings_test_link_mode(ks, advertising, 2075 1000baseKX_Full)) 2076 adv_link_speed |= ICE_AQ_LINK_SPEED_1000MB; 2077 if (ethtool_link_ksettings_test_link_mode(ks, advertising, 2078 2500baseT_Full)) 2079 adv_link_speed |= ICE_AQ_LINK_SPEED_2500MB; 2080 if (ethtool_link_ksettings_test_link_mode(ks, advertising, 2081 2500baseX_Full)) 2082 adv_link_speed |= ICE_AQ_LINK_SPEED_2500MB; 2083 if (ethtool_link_ksettings_test_link_mode(ks, advertising, 2084 5000baseT_Full)) 2085 adv_link_speed |= ICE_AQ_LINK_SPEED_5GB; 2086 if (ethtool_link_ksettings_test_link_mode(ks, advertising, 2087 10000baseT_Full) || 2088 ethtool_link_ksettings_test_link_mode(ks, advertising, 2089 10000baseKR_Full)) 2090 adv_link_speed |= ICE_AQ_LINK_SPEED_10GB; 2091 if (ethtool_link_ksettings_test_link_mode(ks, advertising, 2092 10000baseSR_Full) || 2093 ethtool_link_ksettings_test_link_mode(ks, advertising, 2094 10000baseLR_Full)) 2095 adv_link_speed |= ICE_AQ_LINK_SPEED_10GB; 2096 if (ethtool_link_ksettings_test_link_mode(ks, advertising, 2097 25000baseCR_Full) || 2098 ethtool_link_ksettings_test_link_mode(ks, advertising, 2099 25000baseSR_Full) || 2100 ethtool_link_ksettings_test_link_mode(ks, advertising, 2101 25000baseKR_Full)) 2102 adv_link_speed |= ICE_AQ_LINK_SPEED_25GB; 2103 if (ethtool_link_ksettings_test_link_mode(ks, advertising, 2104 40000baseCR4_Full) || 2105 ethtool_link_ksettings_test_link_mode(ks, advertising, 2106 40000baseSR4_Full) || 2107 ethtool_link_ksettings_test_link_mode(ks, advertising, 2108 40000baseLR4_Full) || 2109 ethtool_link_ksettings_test_link_mode(ks, advertising, 2110 40000baseKR4_Full)) 2111 adv_link_speed |= ICE_AQ_LINK_SPEED_40GB; 2112 if (ethtool_link_ksettings_test_link_mode(ks, advertising, 2113 50000baseCR2_Full) || 2114 ethtool_link_ksettings_test_link_mode(ks, advertising, 2115 50000baseKR2_Full)) 2116 adv_link_speed |= ICE_AQ_LINK_SPEED_50GB; 2117 if (ethtool_link_ksettings_test_link_mode(ks, advertising, 2118 50000baseSR2_Full)) 2119 adv_link_speed |= ICE_AQ_LINK_SPEED_50GB; 2120 if (ethtool_link_ksettings_test_link_mode(ks, advertising, 2121 100000baseCR4_Full) || 2122 ethtool_link_ksettings_test_link_mode(ks, advertising, 2123 100000baseSR4_Full) || 2124 ethtool_link_ksettings_test_link_mode(ks, advertising, 2125 100000baseLR4_ER4_Full) || 2126 ethtool_link_ksettings_test_link_mode(ks, advertising, 2127 100000baseKR4_Full)) 2128 adv_link_speed |= ICE_AQ_LINK_SPEED_100GB; 2129 2130 return adv_link_speed; 2131 } 2132 2133 /** 2134 * ice_setup_autoneg 2135 * @p: port info 2136 * @ks: ethtool_link_ksettings 2137 * @config: configuration that will be sent down to FW 2138 * @autoneg_enabled: autonegotiation is enabled or not 2139 * @autoneg_changed: will there a change in autonegotiation 2140 * @netdev: network interface device structure 2141 * 2142 * Setup PHY autonegotiation feature 2143 */ 2144 static int 2145 ice_setup_autoneg(struct ice_port_info *p, struct ethtool_link_ksettings *ks, 2146 struct ice_aqc_set_phy_cfg_data *config, 2147 u8 autoneg_enabled, u8 *autoneg_changed, 2148 struct net_device *netdev) 2149 { 2150 int err = 0; 2151 2152 *autoneg_changed = 0; 2153 2154 /* Check autoneg */ 2155 if (autoneg_enabled == AUTONEG_ENABLE) { 2156 /* If autoneg was not already enabled */ 2157 if (!(p->phy.link_info.an_info & ICE_AQ_AN_COMPLETED)) { 2158 /* If autoneg is not supported, return error */ 2159 if (!ethtool_link_ksettings_test_link_mode(ks, 2160 supported, 2161 Autoneg)) { 2162 netdev_info(netdev, "Autoneg not supported on this phy.\n"); 2163 err = -EINVAL; 2164 } else { 2165 /* Autoneg is allowed to change */ 2166 config->caps |= ICE_AQ_PHY_ENA_AUTO_LINK_UPDT; 2167 *autoneg_changed = 1; 2168 } 2169 } 2170 } else { 2171 /* If autoneg is currently enabled */ 2172 if (p->phy.link_info.an_info & ICE_AQ_AN_COMPLETED) { 2173 /* If autoneg is supported 10GBASE_T is the only PHY 2174 * that can disable it, so otherwise return error 2175 */ 2176 if (ethtool_link_ksettings_test_link_mode(ks, 2177 supported, 2178 Autoneg)) { 2179 netdev_info(netdev, "Autoneg cannot be disabled on this phy\n"); 2180 err = -EINVAL; 2181 } else { 2182 /* Autoneg is allowed to change */ 2183 config->caps &= ~ICE_AQ_PHY_ENA_AUTO_LINK_UPDT; 2184 *autoneg_changed = 1; 2185 } 2186 } 2187 } 2188 2189 return err; 2190 } 2191 2192 /** 2193 * ice_set_phy_type_from_speed - set phy_types based on speeds 2194 * and advertised modes 2195 * @ks: ethtool link ksettings struct 2196 * @phy_type_low: pointer to the lower part of phy_type 2197 * @phy_type_high: pointer to the higher part of phy_type 2198 * @adv_link_speed: targeted link speeds bitmap 2199 */ 2200 static void 2201 ice_set_phy_type_from_speed(const struct ethtool_link_ksettings *ks, 2202 u64 *phy_type_low, u64 *phy_type_high, 2203 u16 adv_link_speed) 2204 { 2205 /* Handle 1000M speed in a special way because ice_update_phy_type 2206 * enables all link modes, but having mixed copper and optical 2207 * standards is not supported. 2208 */ 2209 adv_link_speed &= ~ICE_AQ_LINK_SPEED_1000MB; 2210 2211 if (ethtool_link_ksettings_test_link_mode(ks, advertising, 2212 1000baseT_Full)) 2213 *phy_type_low |= ICE_PHY_TYPE_LOW_1000BASE_T | 2214 ICE_PHY_TYPE_LOW_1G_SGMII; 2215 2216 if (ethtool_link_ksettings_test_link_mode(ks, advertising, 2217 1000baseKX_Full)) 2218 *phy_type_low |= ICE_PHY_TYPE_LOW_1000BASE_KX; 2219 2220 if (ethtool_link_ksettings_test_link_mode(ks, advertising, 2221 1000baseX_Full)) 2222 *phy_type_low |= ICE_PHY_TYPE_LOW_1000BASE_SX | 2223 ICE_PHY_TYPE_LOW_1000BASE_LX; 2224 2225 ice_update_phy_type(phy_type_low, phy_type_high, adv_link_speed); 2226 } 2227 2228 /** 2229 * ice_set_link_ksettings - Set Speed and Duplex 2230 * @netdev: network interface device structure 2231 * @ks: ethtool ksettings 2232 * 2233 * Set speed/duplex per media_types advertised/forced 2234 */ 2235 static int 2236 ice_set_link_ksettings(struct net_device *netdev, 2237 const struct ethtool_link_ksettings *ks) 2238 { 2239 struct ice_netdev_priv *np = netdev_priv(netdev); 2240 u8 autoneg, timeout = TEST_SET_BITS_TIMEOUT; 2241 struct ethtool_link_ksettings copy_ks = *ks; 2242 struct ethtool_link_ksettings safe_ks = {}; 2243 struct ice_aqc_get_phy_caps_data *phy_caps; 2244 struct ice_aqc_set_phy_cfg_data config; 2245 u16 adv_link_speed, curr_link_speed; 2246 struct ice_pf *pf = np->vsi->back; 2247 struct ice_port_info *pi; 2248 u8 autoneg_changed = 0; 2249 u64 phy_type_high = 0; 2250 u64 phy_type_low = 0; 2251 bool linkup; 2252 int err; 2253 2254 pi = np->vsi->port_info; 2255 2256 if (!pi) 2257 return -EIO; 2258 2259 if (pi->phy.media_type != ICE_MEDIA_BASET && 2260 pi->phy.media_type != ICE_MEDIA_FIBER && 2261 pi->phy.media_type != ICE_MEDIA_BACKPLANE && 2262 pi->phy.media_type != ICE_MEDIA_DA && 2263 pi->phy.link_info.link_info & ICE_AQ_LINK_UP) 2264 return -EOPNOTSUPP; 2265 2266 phy_caps = kzalloc(sizeof(*phy_caps), GFP_KERNEL); 2267 if (!phy_caps) 2268 return -ENOMEM; 2269 2270 /* Get the PHY capabilities based on media */ 2271 if (ice_fw_supports_report_dflt_cfg(pi->hw)) 2272 err = ice_aq_get_phy_caps(pi, false, ICE_AQC_REPORT_DFLT_CFG, 2273 phy_caps, NULL); 2274 else 2275 err = ice_aq_get_phy_caps(pi, false, ICE_AQC_REPORT_TOPO_CAP_MEDIA, 2276 phy_caps, NULL); 2277 if (err) 2278 goto done; 2279 2280 /* save autoneg out of ksettings */ 2281 autoneg = copy_ks.base.autoneg; 2282 2283 /* Get link modes supported by hardware.*/ 2284 ice_phy_type_to_ethtool(netdev, &safe_ks); 2285 2286 /* and check against modes requested by user. 2287 * Return an error if unsupported mode was set. 2288 */ 2289 if (!bitmap_subset(copy_ks.link_modes.advertising, 2290 safe_ks.link_modes.supported, 2291 __ETHTOOL_LINK_MODE_MASK_NBITS)) { 2292 if (!test_bit(ICE_FLAG_LINK_LENIENT_MODE_ENA, pf->flags)) 2293 netdev_info(netdev, "The selected speed is not supported by the current media. Please select a link speed that is supported by the current media.\n"); 2294 err = -EOPNOTSUPP; 2295 goto done; 2296 } 2297 2298 /* get our own copy of the bits to check against */ 2299 memset(&safe_ks, 0, sizeof(safe_ks)); 2300 safe_ks.base.cmd = copy_ks.base.cmd; 2301 safe_ks.base.link_mode_masks_nwords = 2302 copy_ks.base.link_mode_masks_nwords; 2303 ice_get_link_ksettings(netdev, &safe_ks); 2304 2305 /* set autoneg back to what it currently is */ 2306 copy_ks.base.autoneg = safe_ks.base.autoneg; 2307 /* we don't compare the speed */ 2308 copy_ks.base.speed = safe_ks.base.speed; 2309 2310 /* If copy_ks.base and safe_ks.base are not the same now, then they are 2311 * trying to set something that we do not support. 2312 */ 2313 if (memcmp(©_ks.base, &safe_ks.base, sizeof(copy_ks.base))) { 2314 err = -EOPNOTSUPP; 2315 goto done; 2316 } 2317 2318 while (test_and_set_bit(ICE_CFG_BUSY, pf->state)) { 2319 timeout--; 2320 if (!timeout) { 2321 err = -EBUSY; 2322 goto done; 2323 } 2324 usleep_range(TEST_SET_BITS_SLEEP_MIN, TEST_SET_BITS_SLEEP_MAX); 2325 } 2326 2327 /* Copy the current user PHY configuration. The current user PHY 2328 * configuration is initialized during probe from PHY capabilities 2329 * software mode, and updated on set PHY configuration. 2330 */ 2331 config = pi->phy.curr_user_phy_cfg; 2332 2333 config.caps |= ICE_AQ_PHY_ENA_AUTO_LINK_UPDT; 2334 2335 /* Check autoneg */ 2336 err = ice_setup_autoneg(pi, &safe_ks, &config, autoneg, &autoneg_changed, 2337 netdev); 2338 2339 if (err) 2340 goto done; 2341 2342 /* Call to get the current link speed */ 2343 pi->phy.get_link_info = true; 2344 err = ice_get_link_status(pi, &linkup); 2345 if (err) 2346 goto done; 2347 2348 curr_link_speed = pi->phy.curr_user_speed_req; 2349 adv_link_speed = ice_ksettings_find_adv_link_speed(ks); 2350 2351 /* If speed didn't get set, set it to what it currently is. 2352 * This is needed because if advertise is 0 (as it is when autoneg 2353 * is disabled) then speed won't get set. 2354 */ 2355 if (!adv_link_speed) 2356 adv_link_speed = curr_link_speed; 2357 2358 /* Convert the advertise link speeds to their corresponded PHY_TYPE */ 2359 ice_set_phy_type_from_speed(ks, &phy_type_low, &phy_type_high, 2360 adv_link_speed); 2361 2362 if (!autoneg_changed && adv_link_speed == curr_link_speed) { 2363 netdev_info(netdev, "Nothing changed, exiting without setting anything.\n"); 2364 goto done; 2365 } 2366 2367 /* save the requested speeds */ 2368 pi->phy.link_info.req_speeds = adv_link_speed; 2369 2370 /* set link and auto negotiation so changes take effect */ 2371 config.caps |= ICE_AQ_PHY_ENA_LINK; 2372 2373 /* check if there is a PHY type for the requested advertised speed */ 2374 if (!(phy_type_low || phy_type_high)) { 2375 netdev_info(netdev, "The selected speed is not supported by the current media. Please select a link speed that is supported by the current media.\n"); 2376 err = -EOPNOTSUPP; 2377 goto done; 2378 } 2379 2380 /* intersect requested advertised speed PHY types with media PHY types 2381 * for set PHY configuration 2382 */ 2383 config.phy_type_high = cpu_to_le64(phy_type_high) & 2384 phy_caps->phy_type_high; 2385 config.phy_type_low = cpu_to_le64(phy_type_low) & 2386 phy_caps->phy_type_low; 2387 2388 if (!(config.phy_type_high || config.phy_type_low)) { 2389 /* If there is no intersection and lenient mode is enabled, then 2390 * intersect the requested advertised speed with NVM media type 2391 * PHY types. 2392 */ 2393 if (test_bit(ICE_FLAG_LINK_LENIENT_MODE_ENA, pf->flags)) { 2394 config.phy_type_high = cpu_to_le64(phy_type_high) & 2395 pf->nvm_phy_type_hi; 2396 config.phy_type_low = cpu_to_le64(phy_type_low) & 2397 pf->nvm_phy_type_lo; 2398 } else { 2399 netdev_info(netdev, "The selected speed is not supported by the current media. Please select a link speed that is supported by the current media.\n"); 2400 err = -EOPNOTSUPP; 2401 goto done; 2402 } 2403 } 2404 2405 /* If link is up put link down */ 2406 if (pi->phy.link_info.link_info & ICE_AQ_LINK_UP) { 2407 /* Tell the OS link is going down, the link will go 2408 * back up when fw says it is ready asynchronously 2409 */ 2410 ice_print_link_msg(np->vsi, false); 2411 netif_carrier_off(netdev); 2412 netif_tx_stop_all_queues(netdev); 2413 } 2414 2415 /* make the aq call */ 2416 err = ice_aq_set_phy_cfg(&pf->hw, pi, &config, NULL); 2417 if (err) { 2418 netdev_info(netdev, "Set phy config failed,\n"); 2419 goto done; 2420 } 2421 2422 /* Save speed request */ 2423 pi->phy.curr_user_speed_req = adv_link_speed; 2424 done: 2425 kfree(phy_caps); 2426 clear_bit(ICE_CFG_BUSY, pf->state); 2427 2428 return err; 2429 } 2430 2431 /** 2432 * ice_parse_hdrs - parses headers from RSS hash input 2433 * @nfc: ethtool rxnfc command 2434 * 2435 * This function parses the rxnfc command and returns intended 2436 * header types for RSS configuration 2437 */ 2438 static u32 ice_parse_hdrs(struct ethtool_rxnfc *nfc) 2439 { 2440 u32 hdrs = ICE_FLOW_SEG_HDR_NONE; 2441 2442 switch (nfc->flow_type) { 2443 case TCP_V4_FLOW: 2444 hdrs |= ICE_FLOW_SEG_HDR_TCP | ICE_FLOW_SEG_HDR_IPV4; 2445 break; 2446 case UDP_V4_FLOW: 2447 hdrs |= ICE_FLOW_SEG_HDR_UDP | ICE_FLOW_SEG_HDR_IPV4; 2448 break; 2449 case SCTP_V4_FLOW: 2450 hdrs |= ICE_FLOW_SEG_HDR_SCTP | ICE_FLOW_SEG_HDR_IPV4; 2451 break; 2452 case TCP_V6_FLOW: 2453 hdrs |= ICE_FLOW_SEG_HDR_TCP | ICE_FLOW_SEG_HDR_IPV6; 2454 break; 2455 case UDP_V6_FLOW: 2456 hdrs |= ICE_FLOW_SEG_HDR_UDP | ICE_FLOW_SEG_HDR_IPV6; 2457 break; 2458 case SCTP_V6_FLOW: 2459 hdrs |= ICE_FLOW_SEG_HDR_SCTP | ICE_FLOW_SEG_HDR_IPV6; 2460 break; 2461 default: 2462 break; 2463 } 2464 return hdrs; 2465 } 2466 2467 #define ICE_FLOW_HASH_FLD_IPV4_SA BIT_ULL(ICE_FLOW_FIELD_IDX_IPV4_SA) 2468 #define ICE_FLOW_HASH_FLD_IPV6_SA BIT_ULL(ICE_FLOW_FIELD_IDX_IPV6_SA) 2469 #define ICE_FLOW_HASH_FLD_IPV4_DA BIT_ULL(ICE_FLOW_FIELD_IDX_IPV4_DA) 2470 #define ICE_FLOW_HASH_FLD_IPV6_DA BIT_ULL(ICE_FLOW_FIELD_IDX_IPV6_DA) 2471 #define ICE_FLOW_HASH_FLD_TCP_SRC_PORT BIT_ULL(ICE_FLOW_FIELD_IDX_TCP_SRC_PORT) 2472 #define ICE_FLOW_HASH_FLD_TCP_DST_PORT BIT_ULL(ICE_FLOW_FIELD_IDX_TCP_DST_PORT) 2473 #define ICE_FLOW_HASH_FLD_UDP_SRC_PORT BIT_ULL(ICE_FLOW_FIELD_IDX_UDP_SRC_PORT) 2474 #define ICE_FLOW_HASH_FLD_UDP_DST_PORT BIT_ULL(ICE_FLOW_FIELD_IDX_UDP_DST_PORT) 2475 #define ICE_FLOW_HASH_FLD_SCTP_SRC_PORT \ 2476 BIT_ULL(ICE_FLOW_FIELD_IDX_SCTP_SRC_PORT) 2477 #define ICE_FLOW_HASH_FLD_SCTP_DST_PORT \ 2478 BIT_ULL(ICE_FLOW_FIELD_IDX_SCTP_DST_PORT) 2479 2480 /** 2481 * ice_parse_hash_flds - parses hash fields from RSS hash input 2482 * @nfc: ethtool rxnfc command 2483 * 2484 * This function parses the rxnfc command and returns intended 2485 * hash fields for RSS configuration 2486 */ 2487 static u64 ice_parse_hash_flds(struct ethtool_rxnfc *nfc) 2488 { 2489 u64 hfld = ICE_HASH_INVALID; 2490 2491 if (nfc->data & RXH_IP_SRC || nfc->data & RXH_IP_DST) { 2492 switch (nfc->flow_type) { 2493 case TCP_V4_FLOW: 2494 case UDP_V4_FLOW: 2495 case SCTP_V4_FLOW: 2496 if (nfc->data & RXH_IP_SRC) 2497 hfld |= ICE_FLOW_HASH_FLD_IPV4_SA; 2498 if (nfc->data & RXH_IP_DST) 2499 hfld |= ICE_FLOW_HASH_FLD_IPV4_DA; 2500 break; 2501 case TCP_V6_FLOW: 2502 case UDP_V6_FLOW: 2503 case SCTP_V6_FLOW: 2504 if (nfc->data & RXH_IP_SRC) 2505 hfld |= ICE_FLOW_HASH_FLD_IPV6_SA; 2506 if (nfc->data & RXH_IP_DST) 2507 hfld |= ICE_FLOW_HASH_FLD_IPV6_DA; 2508 break; 2509 default: 2510 break; 2511 } 2512 } 2513 2514 if (nfc->data & RXH_L4_B_0_1 || nfc->data & RXH_L4_B_2_3) { 2515 switch (nfc->flow_type) { 2516 case TCP_V4_FLOW: 2517 case TCP_V6_FLOW: 2518 if (nfc->data & RXH_L4_B_0_1) 2519 hfld |= ICE_FLOW_HASH_FLD_TCP_SRC_PORT; 2520 if (nfc->data & RXH_L4_B_2_3) 2521 hfld |= ICE_FLOW_HASH_FLD_TCP_DST_PORT; 2522 break; 2523 case UDP_V4_FLOW: 2524 case UDP_V6_FLOW: 2525 if (nfc->data & RXH_L4_B_0_1) 2526 hfld |= ICE_FLOW_HASH_FLD_UDP_SRC_PORT; 2527 if (nfc->data & RXH_L4_B_2_3) 2528 hfld |= ICE_FLOW_HASH_FLD_UDP_DST_PORT; 2529 break; 2530 case SCTP_V4_FLOW: 2531 case SCTP_V6_FLOW: 2532 if (nfc->data & RXH_L4_B_0_1) 2533 hfld |= ICE_FLOW_HASH_FLD_SCTP_SRC_PORT; 2534 if (nfc->data & RXH_L4_B_2_3) 2535 hfld |= ICE_FLOW_HASH_FLD_SCTP_DST_PORT; 2536 break; 2537 default: 2538 break; 2539 } 2540 } 2541 2542 return hfld; 2543 } 2544 2545 /** 2546 * ice_set_rss_hash_opt - Enable/Disable flow types for RSS hash 2547 * @vsi: the VSI being configured 2548 * @nfc: ethtool rxnfc command 2549 * 2550 * Returns Success if the flow input set is supported. 2551 */ 2552 static int 2553 ice_set_rss_hash_opt(struct ice_vsi *vsi, struct ethtool_rxnfc *nfc) 2554 { 2555 struct ice_pf *pf = vsi->back; 2556 struct device *dev; 2557 u64 hashed_flds; 2558 int status; 2559 u32 hdrs; 2560 2561 dev = ice_pf_to_dev(pf); 2562 if (ice_is_safe_mode(pf)) { 2563 dev_dbg(dev, "Advanced RSS disabled. Package download failed, vsi num = %d\n", 2564 vsi->vsi_num); 2565 return -EINVAL; 2566 } 2567 2568 hashed_flds = ice_parse_hash_flds(nfc); 2569 if (hashed_flds == ICE_HASH_INVALID) { 2570 dev_dbg(dev, "Invalid hash fields, vsi num = %d\n", 2571 vsi->vsi_num); 2572 return -EINVAL; 2573 } 2574 2575 hdrs = ice_parse_hdrs(nfc); 2576 if (hdrs == ICE_FLOW_SEG_HDR_NONE) { 2577 dev_dbg(dev, "Header type is not valid, vsi num = %d\n", 2578 vsi->vsi_num); 2579 return -EINVAL; 2580 } 2581 2582 status = ice_add_rss_cfg(&pf->hw, vsi->idx, hashed_flds, hdrs); 2583 if (status) { 2584 dev_dbg(dev, "ice_add_rss_cfg failed, vsi num = %d, error = %d\n", 2585 vsi->vsi_num, status); 2586 return status; 2587 } 2588 2589 return 0; 2590 } 2591 2592 /** 2593 * ice_get_rss_hash_opt - Retrieve hash fields for a given flow-type 2594 * @vsi: the VSI being configured 2595 * @nfc: ethtool rxnfc command 2596 */ 2597 static void 2598 ice_get_rss_hash_opt(struct ice_vsi *vsi, struct ethtool_rxnfc *nfc) 2599 { 2600 struct ice_pf *pf = vsi->back; 2601 struct device *dev; 2602 u64 hash_flds; 2603 u32 hdrs; 2604 2605 dev = ice_pf_to_dev(pf); 2606 2607 nfc->data = 0; 2608 if (ice_is_safe_mode(pf)) { 2609 dev_dbg(dev, "Advanced RSS disabled. Package download failed, vsi num = %d\n", 2610 vsi->vsi_num); 2611 return; 2612 } 2613 2614 hdrs = ice_parse_hdrs(nfc); 2615 if (hdrs == ICE_FLOW_SEG_HDR_NONE) { 2616 dev_dbg(dev, "Header type is not valid, vsi num = %d\n", 2617 vsi->vsi_num); 2618 return; 2619 } 2620 2621 hash_flds = ice_get_rss_cfg(&pf->hw, vsi->idx, hdrs); 2622 if (hash_flds == ICE_HASH_INVALID) { 2623 dev_dbg(dev, "No hash fields found for the given header type, vsi num = %d\n", 2624 vsi->vsi_num); 2625 return; 2626 } 2627 2628 if (hash_flds & ICE_FLOW_HASH_FLD_IPV4_SA || 2629 hash_flds & ICE_FLOW_HASH_FLD_IPV6_SA) 2630 nfc->data |= (u64)RXH_IP_SRC; 2631 2632 if (hash_flds & ICE_FLOW_HASH_FLD_IPV4_DA || 2633 hash_flds & ICE_FLOW_HASH_FLD_IPV6_DA) 2634 nfc->data |= (u64)RXH_IP_DST; 2635 2636 if (hash_flds & ICE_FLOW_HASH_FLD_TCP_SRC_PORT || 2637 hash_flds & ICE_FLOW_HASH_FLD_UDP_SRC_PORT || 2638 hash_flds & ICE_FLOW_HASH_FLD_SCTP_SRC_PORT) 2639 nfc->data |= (u64)RXH_L4_B_0_1; 2640 2641 if (hash_flds & ICE_FLOW_HASH_FLD_TCP_DST_PORT || 2642 hash_flds & ICE_FLOW_HASH_FLD_UDP_DST_PORT || 2643 hash_flds & ICE_FLOW_HASH_FLD_SCTP_DST_PORT) 2644 nfc->data |= (u64)RXH_L4_B_2_3; 2645 } 2646 2647 /** 2648 * ice_set_rxnfc - command to set Rx flow rules. 2649 * @netdev: network interface device structure 2650 * @cmd: ethtool rxnfc command 2651 * 2652 * Returns 0 for success and negative values for errors 2653 */ 2654 static int ice_set_rxnfc(struct net_device *netdev, struct ethtool_rxnfc *cmd) 2655 { 2656 struct ice_netdev_priv *np = netdev_priv(netdev); 2657 struct ice_vsi *vsi = np->vsi; 2658 2659 switch (cmd->cmd) { 2660 case ETHTOOL_SRXCLSRLINS: 2661 return ice_add_fdir_ethtool(vsi, cmd); 2662 case ETHTOOL_SRXCLSRLDEL: 2663 return ice_del_fdir_ethtool(vsi, cmd); 2664 case ETHTOOL_SRXFH: 2665 return ice_set_rss_hash_opt(vsi, cmd); 2666 default: 2667 break; 2668 } 2669 return -EOPNOTSUPP; 2670 } 2671 2672 /** 2673 * ice_get_rxnfc - command to get Rx flow classification rules 2674 * @netdev: network interface device structure 2675 * @cmd: ethtool rxnfc command 2676 * @rule_locs: buffer to rturn Rx flow classification rules 2677 * 2678 * Returns Success if the command is supported. 2679 */ 2680 static int 2681 ice_get_rxnfc(struct net_device *netdev, struct ethtool_rxnfc *cmd, 2682 u32 __always_unused *rule_locs) 2683 { 2684 struct ice_netdev_priv *np = netdev_priv(netdev); 2685 struct ice_vsi *vsi = np->vsi; 2686 int ret = -EOPNOTSUPP; 2687 struct ice_hw *hw; 2688 2689 hw = &vsi->back->hw; 2690 2691 switch (cmd->cmd) { 2692 case ETHTOOL_GRXRINGS: 2693 cmd->data = vsi->rss_size; 2694 ret = 0; 2695 break; 2696 case ETHTOOL_GRXCLSRLCNT: 2697 cmd->rule_cnt = hw->fdir_active_fltr; 2698 /* report total rule count */ 2699 cmd->data = ice_get_fdir_cnt_all(hw); 2700 ret = 0; 2701 break; 2702 case ETHTOOL_GRXCLSRULE: 2703 ret = ice_get_ethtool_fdir_entry(hw, cmd); 2704 break; 2705 case ETHTOOL_GRXCLSRLALL: 2706 ret = ice_get_fdir_fltr_ids(hw, cmd, (u32 *)rule_locs); 2707 break; 2708 case ETHTOOL_GRXFH: 2709 ice_get_rss_hash_opt(vsi, cmd); 2710 ret = 0; 2711 break; 2712 default: 2713 break; 2714 } 2715 2716 return ret; 2717 } 2718 2719 static void 2720 ice_get_ringparam(struct net_device *netdev, struct ethtool_ringparam *ring, 2721 struct kernel_ethtool_ringparam *kernel_ring, 2722 struct netlink_ext_ack *extack) 2723 { 2724 struct ice_netdev_priv *np = netdev_priv(netdev); 2725 struct ice_vsi *vsi = np->vsi; 2726 2727 ring->rx_max_pending = ICE_MAX_NUM_DESC; 2728 ring->tx_max_pending = ICE_MAX_NUM_DESC; 2729 ring->rx_pending = vsi->rx_rings[0]->count; 2730 ring->tx_pending = vsi->tx_rings[0]->count; 2731 2732 /* Rx mini and jumbo rings are not supported */ 2733 ring->rx_mini_max_pending = 0; 2734 ring->rx_jumbo_max_pending = 0; 2735 ring->rx_mini_pending = 0; 2736 ring->rx_jumbo_pending = 0; 2737 } 2738 2739 static int 2740 ice_set_ringparam(struct net_device *netdev, struct ethtool_ringparam *ring, 2741 struct kernel_ethtool_ringparam *kernel_ring, 2742 struct netlink_ext_ack *extack) 2743 { 2744 struct ice_netdev_priv *np = netdev_priv(netdev); 2745 struct ice_tx_ring *xdp_rings = NULL; 2746 struct ice_tx_ring *tx_rings = NULL; 2747 struct ice_rx_ring *rx_rings = NULL; 2748 struct ice_vsi *vsi = np->vsi; 2749 struct ice_pf *pf = vsi->back; 2750 int i, timeout = 50, err = 0; 2751 u16 new_rx_cnt, new_tx_cnt; 2752 2753 if (ring->tx_pending > ICE_MAX_NUM_DESC || 2754 ring->tx_pending < ICE_MIN_NUM_DESC || 2755 ring->rx_pending > ICE_MAX_NUM_DESC || 2756 ring->rx_pending < ICE_MIN_NUM_DESC) { 2757 netdev_err(netdev, "Descriptors requested (Tx: %d / Rx: %d) out of range [%d-%d] (increment %d)\n", 2758 ring->tx_pending, ring->rx_pending, 2759 ICE_MIN_NUM_DESC, ICE_MAX_NUM_DESC, 2760 ICE_REQ_DESC_MULTIPLE); 2761 return -EINVAL; 2762 } 2763 2764 new_tx_cnt = ALIGN(ring->tx_pending, ICE_REQ_DESC_MULTIPLE); 2765 if (new_tx_cnt != ring->tx_pending) 2766 netdev_info(netdev, "Requested Tx descriptor count rounded up to %d\n", 2767 new_tx_cnt); 2768 new_rx_cnt = ALIGN(ring->rx_pending, ICE_REQ_DESC_MULTIPLE); 2769 if (new_rx_cnt != ring->rx_pending) 2770 netdev_info(netdev, "Requested Rx descriptor count rounded up to %d\n", 2771 new_rx_cnt); 2772 2773 /* if nothing to do return success */ 2774 if (new_tx_cnt == vsi->tx_rings[0]->count && 2775 new_rx_cnt == vsi->rx_rings[0]->count) { 2776 netdev_dbg(netdev, "Nothing to change, descriptor count is same as requested\n"); 2777 return 0; 2778 } 2779 2780 /* If there is a AF_XDP UMEM attached to any of Rx rings, 2781 * disallow changing the number of descriptors -- regardless 2782 * if the netdev is running or not. 2783 */ 2784 if (ice_xsk_any_rx_ring_ena(vsi)) 2785 return -EBUSY; 2786 2787 while (test_and_set_bit(ICE_CFG_BUSY, pf->state)) { 2788 timeout--; 2789 if (!timeout) 2790 return -EBUSY; 2791 usleep_range(1000, 2000); 2792 } 2793 2794 /* set for the next time the netdev is started */ 2795 if (!netif_running(vsi->netdev)) { 2796 ice_for_each_alloc_txq(vsi, i) 2797 vsi->tx_rings[i]->count = new_tx_cnt; 2798 ice_for_each_alloc_rxq(vsi, i) 2799 vsi->rx_rings[i]->count = new_rx_cnt; 2800 if (ice_is_xdp_ena_vsi(vsi)) 2801 ice_for_each_xdp_txq(vsi, i) 2802 vsi->xdp_rings[i]->count = new_tx_cnt; 2803 vsi->num_tx_desc = (u16)new_tx_cnt; 2804 vsi->num_rx_desc = (u16)new_rx_cnt; 2805 netdev_dbg(netdev, "Link is down, descriptor count change happens when link is brought up\n"); 2806 goto done; 2807 } 2808 2809 if (new_tx_cnt == vsi->tx_rings[0]->count) 2810 goto process_rx; 2811 2812 /* alloc updated Tx resources */ 2813 netdev_info(netdev, "Changing Tx descriptor count from %d to %d\n", 2814 vsi->tx_rings[0]->count, new_tx_cnt); 2815 2816 tx_rings = kcalloc(vsi->num_txq, sizeof(*tx_rings), GFP_KERNEL); 2817 if (!tx_rings) { 2818 err = -ENOMEM; 2819 goto done; 2820 } 2821 2822 ice_for_each_txq(vsi, i) { 2823 /* clone ring and setup updated count */ 2824 tx_rings[i] = *vsi->tx_rings[i]; 2825 tx_rings[i].count = new_tx_cnt; 2826 tx_rings[i].desc = NULL; 2827 tx_rings[i].tx_buf = NULL; 2828 err = ice_setup_tx_ring(&tx_rings[i]); 2829 if (err) { 2830 while (i--) 2831 ice_clean_tx_ring(&tx_rings[i]); 2832 kfree(tx_rings); 2833 goto done; 2834 } 2835 } 2836 2837 if (!ice_is_xdp_ena_vsi(vsi)) 2838 goto process_rx; 2839 2840 /* alloc updated XDP resources */ 2841 netdev_info(netdev, "Changing XDP descriptor count from %d to %d\n", 2842 vsi->xdp_rings[0]->count, new_tx_cnt); 2843 2844 xdp_rings = kcalloc(vsi->num_xdp_txq, sizeof(*xdp_rings), GFP_KERNEL); 2845 if (!xdp_rings) { 2846 err = -ENOMEM; 2847 goto free_tx; 2848 } 2849 2850 ice_for_each_xdp_txq(vsi, i) { 2851 /* clone ring and setup updated count */ 2852 xdp_rings[i] = *vsi->xdp_rings[i]; 2853 xdp_rings[i].count = new_tx_cnt; 2854 xdp_rings[i].next_dd = ICE_RING_QUARTER(&xdp_rings[i]) - 1; 2855 xdp_rings[i].next_rs = ICE_RING_QUARTER(&xdp_rings[i]) - 1; 2856 xdp_rings[i].desc = NULL; 2857 xdp_rings[i].tx_buf = NULL; 2858 err = ice_setup_tx_ring(&xdp_rings[i]); 2859 if (err) { 2860 while (i--) 2861 ice_clean_tx_ring(&xdp_rings[i]); 2862 kfree(xdp_rings); 2863 goto free_tx; 2864 } 2865 ice_set_ring_xdp(&xdp_rings[i]); 2866 } 2867 2868 process_rx: 2869 if (new_rx_cnt == vsi->rx_rings[0]->count) 2870 goto process_link; 2871 2872 /* alloc updated Rx resources */ 2873 netdev_info(netdev, "Changing Rx descriptor count from %d to %d\n", 2874 vsi->rx_rings[0]->count, new_rx_cnt); 2875 2876 rx_rings = kcalloc(vsi->num_rxq, sizeof(*rx_rings), GFP_KERNEL); 2877 if (!rx_rings) { 2878 err = -ENOMEM; 2879 goto done; 2880 } 2881 2882 ice_for_each_rxq(vsi, i) { 2883 /* clone ring and setup updated count */ 2884 rx_rings[i] = *vsi->rx_rings[i]; 2885 rx_rings[i].count = new_rx_cnt; 2886 rx_rings[i].desc = NULL; 2887 rx_rings[i].rx_buf = NULL; 2888 /* this is to allow wr32 to have something to write to 2889 * during early allocation of Rx buffers 2890 */ 2891 rx_rings[i].tail = vsi->back->hw.hw_addr + PRTGEN_STATUS; 2892 2893 err = ice_setup_rx_ring(&rx_rings[i]); 2894 if (err) 2895 goto rx_unwind; 2896 2897 /* allocate Rx buffers */ 2898 err = ice_alloc_rx_bufs(&rx_rings[i], 2899 ICE_DESC_UNUSED(&rx_rings[i])); 2900 rx_unwind: 2901 if (err) { 2902 while (i) { 2903 i--; 2904 ice_free_rx_ring(&rx_rings[i]); 2905 } 2906 kfree(rx_rings); 2907 err = -ENOMEM; 2908 goto free_tx; 2909 } 2910 } 2911 2912 process_link: 2913 /* Bring interface down, copy in the new ring info, then restore the 2914 * interface. if VSI is up, bring it down and then back up 2915 */ 2916 if (!test_and_set_bit(ICE_VSI_DOWN, vsi->state)) { 2917 ice_down(vsi); 2918 2919 if (tx_rings) { 2920 ice_for_each_txq(vsi, i) { 2921 ice_free_tx_ring(vsi->tx_rings[i]); 2922 *vsi->tx_rings[i] = tx_rings[i]; 2923 } 2924 kfree(tx_rings); 2925 } 2926 2927 if (rx_rings) { 2928 ice_for_each_rxq(vsi, i) { 2929 ice_free_rx_ring(vsi->rx_rings[i]); 2930 /* copy the real tail offset */ 2931 rx_rings[i].tail = vsi->rx_rings[i]->tail; 2932 /* this is to fake out the allocation routine 2933 * into thinking it has to realloc everything 2934 * but the recycling logic will let us re-use 2935 * the buffers allocated above 2936 */ 2937 rx_rings[i].next_to_use = 0; 2938 rx_rings[i].next_to_clean = 0; 2939 rx_rings[i].next_to_alloc = 0; 2940 *vsi->rx_rings[i] = rx_rings[i]; 2941 } 2942 kfree(rx_rings); 2943 } 2944 2945 if (xdp_rings) { 2946 ice_for_each_xdp_txq(vsi, i) { 2947 ice_free_tx_ring(vsi->xdp_rings[i]); 2948 *vsi->xdp_rings[i] = xdp_rings[i]; 2949 } 2950 kfree(xdp_rings); 2951 } 2952 2953 vsi->num_tx_desc = new_tx_cnt; 2954 vsi->num_rx_desc = new_rx_cnt; 2955 ice_up(vsi); 2956 } 2957 goto done; 2958 2959 free_tx: 2960 /* error cleanup if the Rx allocations failed after getting Tx */ 2961 if (tx_rings) { 2962 ice_for_each_txq(vsi, i) 2963 ice_free_tx_ring(&tx_rings[i]); 2964 kfree(tx_rings); 2965 } 2966 2967 done: 2968 clear_bit(ICE_CFG_BUSY, pf->state); 2969 return err; 2970 } 2971 2972 /** 2973 * ice_get_pauseparam - Get Flow Control status 2974 * @netdev: network interface device structure 2975 * @pause: ethernet pause (flow control) parameters 2976 * 2977 * Get requested flow control status from PHY capability. 2978 * If autoneg is true, then ethtool will send the ETHTOOL_GSET ioctl which 2979 * is handled by ice_get_link_ksettings. ice_get_link_ksettings will report 2980 * the negotiated Rx/Tx pause via lp_advertising. 2981 */ 2982 static void 2983 ice_get_pauseparam(struct net_device *netdev, struct ethtool_pauseparam *pause) 2984 { 2985 struct ice_netdev_priv *np = netdev_priv(netdev); 2986 struct ice_port_info *pi = np->vsi->port_info; 2987 struct ice_aqc_get_phy_caps_data *pcaps; 2988 struct ice_dcbx_cfg *dcbx_cfg; 2989 int status; 2990 2991 /* Initialize pause params */ 2992 pause->rx_pause = 0; 2993 pause->tx_pause = 0; 2994 2995 dcbx_cfg = &pi->qos_cfg.local_dcbx_cfg; 2996 2997 pcaps = kzalloc(sizeof(*pcaps), GFP_KERNEL); 2998 if (!pcaps) 2999 return; 3000 3001 /* Get current PHY config */ 3002 status = ice_aq_get_phy_caps(pi, false, ICE_AQC_REPORT_ACTIVE_CFG, pcaps, 3003 NULL); 3004 if (status) 3005 goto out; 3006 3007 pause->autoneg = ice_is_phy_caps_an_enabled(pcaps) ? AUTONEG_ENABLE : 3008 AUTONEG_DISABLE; 3009 3010 if (dcbx_cfg->pfc.pfcena) 3011 /* PFC enabled so report LFC as off */ 3012 goto out; 3013 3014 if (pcaps->caps & ICE_AQC_PHY_EN_TX_LINK_PAUSE) 3015 pause->tx_pause = 1; 3016 if (pcaps->caps & ICE_AQC_PHY_EN_RX_LINK_PAUSE) 3017 pause->rx_pause = 1; 3018 3019 out: 3020 kfree(pcaps); 3021 } 3022 3023 /** 3024 * ice_set_pauseparam - Set Flow Control parameter 3025 * @netdev: network interface device structure 3026 * @pause: return Tx/Rx flow control status 3027 */ 3028 static int 3029 ice_set_pauseparam(struct net_device *netdev, struct ethtool_pauseparam *pause) 3030 { 3031 struct ice_netdev_priv *np = netdev_priv(netdev); 3032 struct ice_aqc_get_phy_caps_data *pcaps; 3033 struct ice_link_status *hw_link_info; 3034 struct ice_pf *pf = np->vsi->back; 3035 struct ice_dcbx_cfg *dcbx_cfg; 3036 struct ice_vsi *vsi = np->vsi; 3037 struct ice_hw *hw = &pf->hw; 3038 struct ice_port_info *pi; 3039 u8 aq_failures; 3040 bool link_up; 3041 u32 is_an; 3042 int err; 3043 3044 pi = vsi->port_info; 3045 hw_link_info = &pi->phy.link_info; 3046 dcbx_cfg = &pi->qos_cfg.local_dcbx_cfg; 3047 link_up = hw_link_info->link_info & ICE_AQ_LINK_UP; 3048 3049 /* Changing the port's flow control is not supported if this isn't the 3050 * PF VSI 3051 */ 3052 if (vsi->type != ICE_VSI_PF) { 3053 netdev_info(netdev, "Changing flow control parameters only supported for PF VSI\n"); 3054 return -EOPNOTSUPP; 3055 } 3056 3057 /* Get pause param reports configured and negotiated flow control pause 3058 * when ETHTOOL_GLINKSETTINGS is defined. Since ETHTOOL_GLINKSETTINGS is 3059 * defined get pause param pause->autoneg reports SW configured setting, 3060 * so compare pause->autoneg with SW configured to prevent the user from 3061 * using set pause param to chance autoneg. 3062 */ 3063 pcaps = kzalloc(sizeof(*pcaps), GFP_KERNEL); 3064 if (!pcaps) 3065 return -ENOMEM; 3066 3067 /* Get current PHY config */ 3068 err = ice_aq_get_phy_caps(pi, false, ICE_AQC_REPORT_ACTIVE_CFG, pcaps, 3069 NULL); 3070 if (err) { 3071 kfree(pcaps); 3072 return err; 3073 } 3074 3075 is_an = ice_is_phy_caps_an_enabled(pcaps) ? AUTONEG_ENABLE : 3076 AUTONEG_DISABLE; 3077 3078 kfree(pcaps); 3079 3080 if (pause->autoneg != is_an) { 3081 netdev_info(netdev, "To change autoneg please use: ethtool -s <dev> autoneg <on|off>\n"); 3082 return -EOPNOTSUPP; 3083 } 3084 3085 /* If we have link and don't have autoneg */ 3086 if (!test_bit(ICE_DOWN, pf->state) && 3087 !(hw_link_info->an_info & ICE_AQ_AN_COMPLETED)) { 3088 /* Send message that it might not necessarily work*/ 3089 netdev_info(netdev, "Autoneg did not complete so changing settings may not result in an actual change.\n"); 3090 } 3091 3092 if (dcbx_cfg->pfc.pfcena) { 3093 netdev_info(netdev, "Priority flow control enabled. Cannot set link flow control.\n"); 3094 return -EOPNOTSUPP; 3095 } 3096 if (pause->rx_pause && pause->tx_pause) 3097 pi->fc.req_mode = ICE_FC_FULL; 3098 else if (pause->rx_pause && !pause->tx_pause) 3099 pi->fc.req_mode = ICE_FC_RX_PAUSE; 3100 else if (!pause->rx_pause && pause->tx_pause) 3101 pi->fc.req_mode = ICE_FC_TX_PAUSE; 3102 else if (!pause->rx_pause && !pause->tx_pause) 3103 pi->fc.req_mode = ICE_FC_NONE; 3104 else 3105 return -EINVAL; 3106 3107 /* Set the FC mode and only restart AN if link is up */ 3108 err = ice_set_fc(pi, &aq_failures, link_up); 3109 3110 if (aq_failures & ICE_SET_FC_AQ_FAIL_GET) { 3111 netdev_info(netdev, "Set fc failed on the get_phy_capabilities call with err %d aq_err %s\n", 3112 err, ice_aq_str(hw->adminq.sq_last_status)); 3113 err = -EAGAIN; 3114 } else if (aq_failures & ICE_SET_FC_AQ_FAIL_SET) { 3115 netdev_info(netdev, "Set fc failed on the set_phy_config call with err %d aq_err %s\n", 3116 err, ice_aq_str(hw->adminq.sq_last_status)); 3117 err = -EAGAIN; 3118 } else if (aq_failures & ICE_SET_FC_AQ_FAIL_UPDATE) { 3119 netdev_info(netdev, "Set fc failed on the get_link_info call with err %d aq_err %s\n", 3120 err, ice_aq_str(hw->adminq.sq_last_status)); 3121 err = -EAGAIN; 3122 } 3123 3124 return err; 3125 } 3126 3127 /** 3128 * ice_get_rxfh_key_size - get the RSS hash key size 3129 * @netdev: network interface device structure 3130 * 3131 * Returns the table size. 3132 */ 3133 static u32 ice_get_rxfh_key_size(struct net_device __always_unused *netdev) 3134 { 3135 return ICE_VSIQF_HKEY_ARRAY_SIZE; 3136 } 3137 3138 /** 3139 * ice_get_rxfh_indir_size - get the Rx flow hash indirection table size 3140 * @netdev: network interface device structure 3141 * 3142 * Returns the table size. 3143 */ 3144 static u32 ice_get_rxfh_indir_size(struct net_device *netdev) 3145 { 3146 struct ice_netdev_priv *np = netdev_priv(netdev); 3147 3148 return np->vsi->rss_table_size; 3149 } 3150 3151 static int 3152 ice_get_rxfh_context(struct net_device *netdev, u32 *indir, 3153 u8 *key, u8 *hfunc, u32 rss_context) 3154 { 3155 struct ice_netdev_priv *np = netdev_priv(netdev); 3156 struct ice_vsi *vsi = np->vsi; 3157 struct ice_pf *pf = vsi->back; 3158 u16 qcount, offset; 3159 int err, num_tc, i; 3160 u8 *lut; 3161 3162 if (!test_bit(ICE_FLAG_RSS_ENA, pf->flags)) { 3163 netdev_warn(netdev, "RSS is not supported on this VSI!\n"); 3164 return -EOPNOTSUPP; 3165 } 3166 3167 if (rss_context && !ice_is_adq_active(pf)) { 3168 netdev_err(netdev, "RSS context cannot be non-zero when ADQ is not configured.\n"); 3169 return -EINVAL; 3170 } 3171 3172 qcount = vsi->mqprio_qopt.qopt.count[rss_context]; 3173 offset = vsi->mqprio_qopt.qopt.offset[rss_context]; 3174 3175 if (rss_context && ice_is_adq_active(pf)) { 3176 num_tc = vsi->mqprio_qopt.qopt.num_tc; 3177 if (rss_context >= num_tc) { 3178 netdev_err(netdev, "RSS context:%d > num_tc:%d\n", 3179 rss_context, num_tc); 3180 return -EINVAL; 3181 } 3182 /* Use channel VSI of given TC */ 3183 vsi = vsi->tc_map_vsi[rss_context]; 3184 } 3185 3186 if (hfunc) 3187 *hfunc = ETH_RSS_HASH_TOP; 3188 3189 if (!indir) 3190 return 0; 3191 3192 lut = kzalloc(vsi->rss_table_size, GFP_KERNEL); 3193 if (!lut) 3194 return -ENOMEM; 3195 3196 err = ice_get_rss_key(vsi, key); 3197 if (err) 3198 goto out; 3199 3200 err = ice_get_rss_lut(vsi, lut, vsi->rss_table_size); 3201 if (err) 3202 goto out; 3203 3204 if (ice_is_adq_active(pf)) { 3205 for (i = 0; i < vsi->rss_table_size; i++) 3206 indir[i] = offset + lut[i] % qcount; 3207 goto out; 3208 } 3209 3210 for (i = 0; i < vsi->rss_table_size; i++) 3211 indir[i] = lut[i]; 3212 3213 out: 3214 kfree(lut); 3215 return err; 3216 } 3217 3218 /** 3219 * ice_get_rxfh - get the Rx flow hash indirection table 3220 * @netdev: network interface device structure 3221 * @indir: indirection table 3222 * @key: hash key 3223 * @hfunc: hash function 3224 * 3225 * Reads the indirection table directly from the hardware. 3226 */ 3227 static int 3228 ice_get_rxfh(struct net_device *netdev, u32 *indir, u8 *key, u8 *hfunc) 3229 { 3230 return ice_get_rxfh_context(netdev, indir, key, hfunc, 0); 3231 } 3232 3233 /** 3234 * ice_set_rxfh - set the Rx flow hash indirection table 3235 * @netdev: network interface device structure 3236 * @indir: indirection table 3237 * @key: hash key 3238 * @hfunc: hash function 3239 * 3240 * Returns -EINVAL if the table specifies an invalid queue ID, otherwise 3241 * returns 0 after programming the table. 3242 */ 3243 static int 3244 ice_set_rxfh(struct net_device *netdev, const u32 *indir, const u8 *key, 3245 const u8 hfunc) 3246 { 3247 struct ice_netdev_priv *np = netdev_priv(netdev); 3248 struct ice_vsi *vsi = np->vsi; 3249 struct ice_pf *pf = vsi->back; 3250 struct device *dev; 3251 int err; 3252 3253 dev = ice_pf_to_dev(pf); 3254 if (hfunc != ETH_RSS_HASH_NO_CHANGE && hfunc != ETH_RSS_HASH_TOP) 3255 return -EOPNOTSUPP; 3256 3257 if (!test_bit(ICE_FLAG_RSS_ENA, pf->flags)) { 3258 /* RSS not supported return error here */ 3259 netdev_warn(netdev, "RSS is not configured on this VSI!\n"); 3260 return -EIO; 3261 } 3262 3263 if (ice_is_adq_active(pf)) { 3264 netdev_err(netdev, "Cannot change RSS params with ADQ configured.\n"); 3265 return -EOPNOTSUPP; 3266 } 3267 3268 if (key) { 3269 if (!vsi->rss_hkey_user) { 3270 vsi->rss_hkey_user = 3271 devm_kzalloc(dev, ICE_VSIQF_HKEY_ARRAY_SIZE, 3272 GFP_KERNEL); 3273 if (!vsi->rss_hkey_user) 3274 return -ENOMEM; 3275 } 3276 memcpy(vsi->rss_hkey_user, key, ICE_VSIQF_HKEY_ARRAY_SIZE); 3277 3278 err = ice_set_rss_key(vsi, vsi->rss_hkey_user); 3279 if (err) 3280 return err; 3281 } 3282 3283 if (!vsi->rss_lut_user) { 3284 vsi->rss_lut_user = devm_kzalloc(dev, vsi->rss_table_size, 3285 GFP_KERNEL); 3286 if (!vsi->rss_lut_user) 3287 return -ENOMEM; 3288 } 3289 3290 /* Each 32 bits pointed by 'indir' is stored with a lut entry */ 3291 if (indir) { 3292 int i; 3293 3294 for (i = 0; i < vsi->rss_table_size; i++) 3295 vsi->rss_lut_user[i] = (u8)(indir[i]); 3296 } else { 3297 ice_fill_rss_lut(vsi->rss_lut_user, vsi->rss_table_size, 3298 vsi->rss_size); 3299 } 3300 3301 err = ice_set_rss_lut(vsi, vsi->rss_lut_user, vsi->rss_table_size); 3302 if (err) 3303 return err; 3304 3305 return 0; 3306 } 3307 3308 static int 3309 ice_get_ts_info(struct net_device *dev, struct ethtool_ts_info *info) 3310 { 3311 struct ice_pf *pf = ice_netdev_to_pf(dev); 3312 3313 /* only report timestamping if PTP is enabled */ 3314 if (!test_bit(ICE_FLAG_PTP, pf->flags)) 3315 return ethtool_op_get_ts_info(dev, info); 3316 3317 info->so_timestamping = SOF_TIMESTAMPING_TX_SOFTWARE | 3318 SOF_TIMESTAMPING_RX_SOFTWARE | 3319 SOF_TIMESTAMPING_SOFTWARE | 3320 SOF_TIMESTAMPING_TX_HARDWARE | 3321 SOF_TIMESTAMPING_RX_HARDWARE | 3322 SOF_TIMESTAMPING_RAW_HARDWARE; 3323 3324 info->phc_index = ice_get_ptp_clock_index(pf); 3325 3326 info->tx_types = BIT(HWTSTAMP_TX_OFF) | BIT(HWTSTAMP_TX_ON); 3327 3328 info->rx_filters = BIT(HWTSTAMP_FILTER_NONE) | BIT(HWTSTAMP_FILTER_ALL); 3329 3330 return 0; 3331 } 3332 3333 /** 3334 * ice_get_max_txq - return the maximum number of Tx queues for in a PF 3335 * @pf: PF structure 3336 */ 3337 static int ice_get_max_txq(struct ice_pf *pf) 3338 { 3339 return min3(pf->num_lan_msix, (u16)num_online_cpus(), 3340 (u16)pf->hw.func_caps.common_cap.num_txq); 3341 } 3342 3343 /** 3344 * ice_get_max_rxq - return the maximum number of Rx queues for in a PF 3345 * @pf: PF structure 3346 */ 3347 static int ice_get_max_rxq(struct ice_pf *pf) 3348 { 3349 return min3(pf->num_lan_msix, (u16)num_online_cpus(), 3350 (u16)pf->hw.func_caps.common_cap.num_rxq); 3351 } 3352 3353 /** 3354 * ice_get_combined_cnt - return the current number of combined channels 3355 * @vsi: PF VSI pointer 3356 * 3357 * Go through all queue vectors and count ones that have both Rx and Tx ring 3358 * attached 3359 */ 3360 static u32 ice_get_combined_cnt(struct ice_vsi *vsi) 3361 { 3362 u32 combined = 0; 3363 int q_idx; 3364 3365 ice_for_each_q_vector(vsi, q_idx) { 3366 struct ice_q_vector *q_vector = vsi->q_vectors[q_idx]; 3367 3368 if (q_vector->rx.rx_ring && q_vector->tx.tx_ring) 3369 combined++; 3370 } 3371 3372 return combined; 3373 } 3374 3375 /** 3376 * ice_get_channels - get the current and max supported channels 3377 * @dev: network interface device structure 3378 * @ch: ethtool channel data structure 3379 */ 3380 static void 3381 ice_get_channels(struct net_device *dev, struct ethtool_channels *ch) 3382 { 3383 struct ice_netdev_priv *np = netdev_priv(dev); 3384 struct ice_vsi *vsi = np->vsi; 3385 struct ice_pf *pf = vsi->back; 3386 3387 /* report maximum channels */ 3388 ch->max_rx = ice_get_max_rxq(pf); 3389 ch->max_tx = ice_get_max_txq(pf); 3390 ch->max_combined = min_t(int, ch->max_rx, ch->max_tx); 3391 3392 /* report current channels */ 3393 ch->combined_count = ice_get_combined_cnt(vsi); 3394 ch->rx_count = vsi->num_rxq - ch->combined_count; 3395 ch->tx_count = vsi->num_txq - ch->combined_count; 3396 3397 /* report other queues */ 3398 ch->other_count = test_bit(ICE_FLAG_FD_ENA, pf->flags) ? 1 : 0; 3399 ch->max_other = ch->other_count; 3400 } 3401 3402 /** 3403 * ice_get_valid_rss_size - return valid number of RSS queues 3404 * @hw: pointer to the HW structure 3405 * @new_size: requested RSS queues 3406 */ 3407 static int ice_get_valid_rss_size(struct ice_hw *hw, int new_size) 3408 { 3409 struct ice_hw_common_caps *caps = &hw->func_caps.common_cap; 3410 3411 return min_t(int, new_size, BIT(caps->rss_table_entry_width)); 3412 } 3413 3414 /** 3415 * ice_vsi_set_dflt_rss_lut - set default RSS LUT with requested RSS size 3416 * @vsi: VSI to reconfigure RSS LUT on 3417 * @req_rss_size: requested range of queue numbers for hashing 3418 * 3419 * Set the VSI's RSS parameters, configure the RSS LUT based on these. 3420 */ 3421 static int ice_vsi_set_dflt_rss_lut(struct ice_vsi *vsi, int req_rss_size) 3422 { 3423 struct ice_pf *pf = vsi->back; 3424 struct device *dev; 3425 struct ice_hw *hw; 3426 int err; 3427 u8 *lut; 3428 3429 dev = ice_pf_to_dev(pf); 3430 hw = &pf->hw; 3431 3432 if (!req_rss_size) 3433 return -EINVAL; 3434 3435 lut = kzalloc(vsi->rss_table_size, GFP_KERNEL); 3436 if (!lut) 3437 return -ENOMEM; 3438 3439 /* set RSS LUT parameters */ 3440 if (!test_bit(ICE_FLAG_RSS_ENA, pf->flags)) 3441 vsi->rss_size = 1; 3442 else 3443 vsi->rss_size = ice_get_valid_rss_size(hw, req_rss_size); 3444 3445 /* create/set RSS LUT */ 3446 ice_fill_rss_lut(lut, vsi->rss_table_size, vsi->rss_size); 3447 err = ice_set_rss_lut(vsi, lut, vsi->rss_table_size); 3448 if (err) 3449 dev_err(dev, "Cannot set RSS lut, err %d aq_err %s\n", err, 3450 ice_aq_str(hw->adminq.sq_last_status)); 3451 3452 kfree(lut); 3453 return err; 3454 } 3455 3456 /** 3457 * ice_set_channels - set the number channels 3458 * @dev: network interface device structure 3459 * @ch: ethtool channel data structure 3460 */ 3461 static int ice_set_channels(struct net_device *dev, struct ethtool_channels *ch) 3462 { 3463 struct ice_netdev_priv *np = netdev_priv(dev); 3464 struct ice_vsi *vsi = np->vsi; 3465 struct ice_pf *pf = vsi->back; 3466 int new_rx = 0, new_tx = 0; 3467 u32 curr_combined; 3468 3469 /* do not support changing channels in Safe Mode */ 3470 if (ice_is_safe_mode(pf)) { 3471 netdev_err(dev, "Changing channel in Safe Mode is not supported\n"); 3472 return -EOPNOTSUPP; 3473 } 3474 /* do not support changing other_count */ 3475 if (ch->other_count != (test_bit(ICE_FLAG_FD_ENA, pf->flags) ? 1U : 0U)) 3476 return -EINVAL; 3477 3478 if (ice_is_adq_active(pf)) { 3479 netdev_err(dev, "Cannot set channels with ADQ configured.\n"); 3480 return -EOPNOTSUPP; 3481 } 3482 3483 if (test_bit(ICE_FLAG_FD_ENA, pf->flags) && pf->hw.fdir_active_fltr) { 3484 netdev_err(dev, "Cannot set channels when Flow Director filters are active\n"); 3485 return -EOPNOTSUPP; 3486 } 3487 3488 curr_combined = ice_get_combined_cnt(vsi); 3489 3490 /* these checks are for cases where user didn't specify a particular 3491 * value on cmd line but we get non-zero value anyway via 3492 * get_channels(); look at ethtool.c in ethtool repository (the user 3493 * space part), particularly, do_schannels() routine 3494 */ 3495 if (ch->rx_count == vsi->num_rxq - curr_combined) 3496 ch->rx_count = 0; 3497 if (ch->tx_count == vsi->num_txq - curr_combined) 3498 ch->tx_count = 0; 3499 if (ch->combined_count == curr_combined) 3500 ch->combined_count = 0; 3501 3502 if (!(ch->combined_count || (ch->rx_count && ch->tx_count))) { 3503 netdev_err(dev, "Please specify at least 1 Rx and 1 Tx channel\n"); 3504 return -EINVAL; 3505 } 3506 3507 new_rx = ch->combined_count + ch->rx_count; 3508 new_tx = ch->combined_count + ch->tx_count; 3509 3510 if (new_rx < vsi->tc_cfg.numtc) { 3511 netdev_err(dev, "Cannot set less Rx channels, than Traffic Classes you have (%u)\n", 3512 vsi->tc_cfg.numtc); 3513 return -EINVAL; 3514 } 3515 if (new_tx < vsi->tc_cfg.numtc) { 3516 netdev_err(dev, "Cannot set less Tx channels, than Traffic Classes you have (%u)\n", 3517 vsi->tc_cfg.numtc); 3518 return -EINVAL; 3519 } 3520 if (new_rx > ice_get_max_rxq(pf)) { 3521 netdev_err(dev, "Maximum allowed Rx channels is %d\n", 3522 ice_get_max_rxq(pf)); 3523 return -EINVAL; 3524 } 3525 if (new_tx > ice_get_max_txq(pf)) { 3526 netdev_err(dev, "Maximum allowed Tx channels is %d\n", 3527 ice_get_max_txq(pf)); 3528 return -EINVAL; 3529 } 3530 3531 ice_vsi_recfg_qs(vsi, new_rx, new_tx); 3532 3533 if (!netif_is_rxfh_configured(dev)) 3534 return ice_vsi_set_dflt_rss_lut(vsi, new_rx); 3535 3536 /* Update rss_size due to change in Rx queues */ 3537 vsi->rss_size = ice_get_valid_rss_size(&pf->hw, new_rx); 3538 3539 return 0; 3540 } 3541 3542 /** 3543 * ice_get_wol - get current Wake on LAN configuration 3544 * @netdev: network interface device structure 3545 * @wol: Ethtool structure to retrieve WoL settings 3546 */ 3547 static void ice_get_wol(struct net_device *netdev, struct ethtool_wolinfo *wol) 3548 { 3549 struct ice_netdev_priv *np = netdev_priv(netdev); 3550 struct ice_pf *pf = np->vsi->back; 3551 3552 if (np->vsi->type != ICE_VSI_PF) 3553 netdev_warn(netdev, "Wake on LAN is not supported on this interface!\n"); 3554 3555 /* Get WoL settings based on the HW capability */ 3556 if (ice_is_wol_supported(&pf->hw)) { 3557 wol->supported = WAKE_MAGIC; 3558 wol->wolopts = pf->wol_ena ? WAKE_MAGIC : 0; 3559 } else { 3560 wol->supported = 0; 3561 wol->wolopts = 0; 3562 } 3563 } 3564 3565 /** 3566 * ice_set_wol - set Wake on LAN on supported device 3567 * @netdev: network interface device structure 3568 * @wol: Ethtool structure to set WoL 3569 */ 3570 static int ice_set_wol(struct net_device *netdev, struct ethtool_wolinfo *wol) 3571 { 3572 struct ice_netdev_priv *np = netdev_priv(netdev); 3573 struct ice_vsi *vsi = np->vsi; 3574 struct ice_pf *pf = vsi->back; 3575 3576 if (vsi->type != ICE_VSI_PF || !ice_is_wol_supported(&pf->hw)) 3577 return -EOPNOTSUPP; 3578 3579 /* only magic packet is supported */ 3580 if (wol->wolopts && wol->wolopts != WAKE_MAGIC) 3581 return -EOPNOTSUPP; 3582 3583 /* Set WoL only if there is a new value */ 3584 if (pf->wol_ena != !!wol->wolopts) { 3585 pf->wol_ena = !!wol->wolopts; 3586 device_set_wakeup_enable(ice_pf_to_dev(pf), pf->wol_ena); 3587 netdev_dbg(netdev, "WoL magic packet %sabled\n", 3588 pf->wol_ena ? "en" : "dis"); 3589 } 3590 3591 return 0; 3592 } 3593 3594 /** 3595 * ice_get_rc_coalesce - get ITR values for specific ring container 3596 * @ec: ethtool structure to fill with driver's coalesce settings 3597 * @rc: ring container that the ITR values will come from 3598 * 3599 * Query the device for ice_ring_container specific ITR values. This is 3600 * done per ice_ring_container because each q_vector can have 1 or more rings 3601 * and all of said ring(s) will have the same ITR values. 3602 * 3603 * Returns 0 on success, negative otherwise. 3604 */ 3605 static int 3606 ice_get_rc_coalesce(struct ethtool_coalesce *ec, struct ice_ring_container *rc) 3607 { 3608 if (!rc->rx_ring) 3609 return -EINVAL; 3610 3611 switch (rc->type) { 3612 case ICE_RX_CONTAINER: 3613 ec->use_adaptive_rx_coalesce = ITR_IS_DYNAMIC(rc); 3614 ec->rx_coalesce_usecs = rc->itr_setting; 3615 ec->rx_coalesce_usecs_high = rc->rx_ring->q_vector->intrl; 3616 break; 3617 case ICE_TX_CONTAINER: 3618 ec->use_adaptive_tx_coalesce = ITR_IS_DYNAMIC(rc); 3619 ec->tx_coalesce_usecs = rc->itr_setting; 3620 break; 3621 default: 3622 dev_dbg(ice_pf_to_dev(rc->rx_ring->vsi->back), "Invalid c_type %d\n", rc->type); 3623 return -EINVAL; 3624 } 3625 3626 return 0; 3627 } 3628 3629 /** 3630 * ice_get_q_coalesce - get a queue's ITR/INTRL (coalesce) settings 3631 * @vsi: VSI associated to the queue for getting ITR/INTRL (coalesce) settings 3632 * @ec: coalesce settings to program the device with 3633 * @q_num: update ITR/INTRL (coalesce) settings for this queue number/index 3634 * 3635 * Return 0 on success, and negative under the following conditions: 3636 * 1. Getting Tx or Rx ITR/INTRL (coalesce) settings failed. 3637 * 2. The q_num passed in is not a valid number/index for Tx and Rx rings. 3638 */ 3639 static int 3640 ice_get_q_coalesce(struct ice_vsi *vsi, struct ethtool_coalesce *ec, int q_num) 3641 { 3642 if (q_num < vsi->num_rxq && q_num < vsi->num_txq) { 3643 if (ice_get_rc_coalesce(ec, 3644 &vsi->rx_rings[q_num]->q_vector->rx)) 3645 return -EINVAL; 3646 if (ice_get_rc_coalesce(ec, 3647 &vsi->tx_rings[q_num]->q_vector->tx)) 3648 return -EINVAL; 3649 } else if (q_num < vsi->num_rxq) { 3650 if (ice_get_rc_coalesce(ec, 3651 &vsi->rx_rings[q_num]->q_vector->rx)) 3652 return -EINVAL; 3653 } else if (q_num < vsi->num_txq) { 3654 if (ice_get_rc_coalesce(ec, 3655 &vsi->tx_rings[q_num]->q_vector->tx)) 3656 return -EINVAL; 3657 } else { 3658 return -EINVAL; 3659 } 3660 3661 return 0; 3662 } 3663 3664 /** 3665 * __ice_get_coalesce - get ITR/INTRL values for the device 3666 * @netdev: pointer to the netdev associated with this query 3667 * @ec: ethtool structure to fill with driver's coalesce settings 3668 * @q_num: queue number to get the coalesce settings for 3669 * 3670 * If the caller passes in a negative q_num then we return coalesce settings 3671 * based on queue number 0, else use the actual q_num passed in. 3672 */ 3673 static int 3674 __ice_get_coalesce(struct net_device *netdev, struct ethtool_coalesce *ec, 3675 int q_num) 3676 { 3677 struct ice_netdev_priv *np = netdev_priv(netdev); 3678 struct ice_vsi *vsi = np->vsi; 3679 3680 if (q_num < 0) 3681 q_num = 0; 3682 3683 if (ice_get_q_coalesce(vsi, ec, q_num)) 3684 return -EINVAL; 3685 3686 return 0; 3687 } 3688 3689 static int ice_get_coalesce(struct net_device *netdev, 3690 struct ethtool_coalesce *ec, 3691 struct kernel_ethtool_coalesce *kernel_coal, 3692 struct netlink_ext_ack *extack) 3693 { 3694 return __ice_get_coalesce(netdev, ec, -1); 3695 } 3696 3697 static int 3698 ice_get_per_q_coalesce(struct net_device *netdev, u32 q_num, 3699 struct ethtool_coalesce *ec) 3700 { 3701 return __ice_get_coalesce(netdev, ec, q_num); 3702 } 3703 3704 /** 3705 * ice_set_rc_coalesce - set ITR values for specific ring container 3706 * @ec: ethtool structure from user to update ITR settings 3707 * @rc: ring container that the ITR values will come from 3708 * @vsi: VSI associated to the ring container 3709 * 3710 * Set specific ITR values. This is done per ice_ring_container because each 3711 * q_vector can have 1 or more rings and all of said ring(s) will have the same 3712 * ITR values. 3713 * 3714 * Returns 0 on success, negative otherwise. 3715 */ 3716 static int 3717 ice_set_rc_coalesce(struct ethtool_coalesce *ec, 3718 struct ice_ring_container *rc, struct ice_vsi *vsi) 3719 { 3720 const char *c_type_str = (rc->type == ICE_RX_CONTAINER) ? "rx" : "tx"; 3721 u32 use_adaptive_coalesce, coalesce_usecs; 3722 struct ice_pf *pf = vsi->back; 3723 u16 itr_setting; 3724 3725 if (!rc->rx_ring) 3726 return -EINVAL; 3727 3728 switch (rc->type) { 3729 case ICE_RX_CONTAINER: 3730 { 3731 struct ice_q_vector *q_vector = rc->rx_ring->q_vector; 3732 3733 if (ec->rx_coalesce_usecs_high > ICE_MAX_INTRL || 3734 (ec->rx_coalesce_usecs_high && 3735 ec->rx_coalesce_usecs_high < pf->hw.intrl_gran)) { 3736 netdev_info(vsi->netdev, "Invalid value, %s-usecs-high valid values are 0 (disabled), %d-%d\n", 3737 c_type_str, pf->hw.intrl_gran, 3738 ICE_MAX_INTRL); 3739 return -EINVAL; 3740 } 3741 if (ec->rx_coalesce_usecs_high != q_vector->intrl && 3742 (ec->use_adaptive_rx_coalesce || ec->use_adaptive_tx_coalesce)) { 3743 netdev_info(vsi->netdev, "Invalid value, %s-usecs-high cannot be changed if adaptive-tx or adaptive-rx is enabled\n", 3744 c_type_str); 3745 return -EINVAL; 3746 } 3747 if (ec->rx_coalesce_usecs_high != q_vector->intrl) 3748 q_vector->intrl = ec->rx_coalesce_usecs_high; 3749 3750 use_adaptive_coalesce = ec->use_adaptive_rx_coalesce; 3751 coalesce_usecs = ec->rx_coalesce_usecs; 3752 3753 break; 3754 } 3755 case ICE_TX_CONTAINER: 3756 use_adaptive_coalesce = ec->use_adaptive_tx_coalesce; 3757 coalesce_usecs = ec->tx_coalesce_usecs; 3758 3759 break; 3760 default: 3761 dev_dbg(ice_pf_to_dev(pf), "Invalid container type %d\n", 3762 rc->type); 3763 return -EINVAL; 3764 } 3765 3766 itr_setting = rc->itr_setting; 3767 if (coalesce_usecs != itr_setting && use_adaptive_coalesce) { 3768 netdev_info(vsi->netdev, "%s interrupt throttling cannot be changed if adaptive-%s is enabled\n", 3769 c_type_str, c_type_str); 3770 return -EINVAL; 3771 } 3772 3773 if (coalesce_usecs > ICE_ITR_MAX) { 3774 netdev_info(vsi->netdev, "Invalid value, %s-usecs range is 0-%d\n", 3775 c_type_str, ICE_ITR_MAX); 3776 return -EINVAL; 3777 } 3778 3779 if (use_adaptive_coalesce) { 3780 rc->itr_mode = ITR_DYNAMIC; 3781 } else { 3782 rc->itr_mode = ITR_STATIC; 3783 /* store user facing value how it was set */ 3784 rc->itr_setting = coalesce_usecs; 3785 /* write the change to the register */ 3786 ice_write_itr(rc, coalesce_usecs); 3787 /* force writes to take effect immediately, the flush shouldn't 3788 * be done in the functions above because the intent is for 3789 * them to do lazy writes. 3790 */ 3791 ice_flush(&pf->hw); 3792 } 3793 3794 return 0; 3795 } 3796 3797 /** 3798 * ice_set_q_coalesce - set a queue's ITR/INTRL (coalesce) settings 3799 * @vsi: VSI associated to the queue that need updating 3800 * @ec: coalesce settings to program the device with 3801 * @q_num: update ITR/INTRL (coalesce) settings for this queue number/index 3802 * 3803 * Return 0 on success, and negative under the following conditions: 3804 * 1. Setting Tx or Rx ITR/INTRL (coalesce) settings failed. 3805 * 2. The q_num passed in is not a valid number/index for Tx and Rx rings. 3806 */ 3807 static int 3808 ice_set_q_coalesce(struct ice_vsi *vsi, struct ethtool_coalesce *ec, int q_num) 3809 { 3810 if (q_num < vsi->num_rxq && q_num < vsi->num_txq) { 3811 if (ice_set_rc_coalesce(ec, 3812 &vsi->rx_rings[q_num]->q_vector->rx, 3813 vsi)) 3814 return -EINVAL; 3815 3816 if (ice_set_rc_coalesce(ec, 3817 &vsi->tx_rings[q_num]->q_vector->tx, 3818 vsi)) 3819 return -EINVAL; 3820 } else if (q_num < vsi->num_rxq) { 3821 if (ice_set_rc_coalesce(ec, 3822 &vsi->rx_rings[q_num]->q_vector->rx, 3823 vsi)) 3824 return -EINVAL; 3825 } else if (q_num < vsi->num_txq) { 3826 if (ice_set_rc_coalesce(ec, 3827 &vsi->tx_rings[q_num]->q_vector->tx, 3828 vsi)) 3829 return -EINVAL; 3830 } else { 3831 return -EINVAL; 3832 } 3833 3834 return 0; 3835 } 3836 3837 /** 3838 * ice_print_if_odd_usecs - print message if user tries to set odd [tx|rx]-usecs 3839 * @netdev: netdev used for print 3840 * @itr_setting: previous user setting 3841 * @use_adaptive_coalesce: if adaptive coalesce is enabled or being enabled 3842 * @coalesce_usecs: requested value of [tx|rx]-usecs 3843 * @c_type_str: either "rx" or "tx" to match user set field of [tx|rx]-usecs 3844 */ 3845 static void 3846 ice_print_if_odd_usecs(struct net_device *netdev, u16 itr_setting, 3847 u32 use_adaptive_coalesce, u32 coalesce_usecs, 3848 const char *c_type_str) 3849 { 3850 if (use_adaptive_coalesce) 3851 return; 3852 3853 if (itr_setting != coalesce_usecs && (coalesce_usecs % 2)) 3854 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", 3855 c_type_str, coalesce_usecs, c_type_str, 3856 ITR_REG_ALIGN(coalesce_usecs)); 3857 } 3858 3859 /** 3860 * __ice_set_coalesce - set ITR/INTRL values for the device 3861 * @netdev: pointer to the netdev associated with this query 3862 * @ec: ethtool structure to fill with driver's coalesce settings 3863 * @q_num: queue number to get the coalesce settings for 3864 * 3865 * If the caller passes in a negative q_num then we set the coalesce settings 3866 * for all Tx/Rx queues, else use the actual q_num passed in. 3867 */ 3868 static int 3869 __ice_set_coalesce(struct net_device *netdev, struct ethtool_coalesce *ec, 3870 int q_num) 3871 { 3872 struct ice_netdev_priv *np = netdev_priv(netdev); 3873 struct ice_vsi *vsi = np->vsi; 3874 3875 if (q_num < 0) { 3876 struct ice_q_vector *q_vector = vsi->q_vectors[0]; 3877 int v_idx; 3878 3879 if (q_vector) { 3880 ice_print_if_odd_usecs(netdev, q_vector->rx.itr_setting, 3881 ec->use_adaptive_rx_coalesce, 3882 ec->rx_coalesce_usecs, "rx"); 3883 3884 ice_print_if_odd_usecs(netdev, q_vector->tx.itr_setting, 3885 ec->use_adaptive_tx_coalesce, 3886 ec->tx_coalesce_usecs, "tx"); 3887 } 3888 3889 ice_for_each_q_vector(vsi, v_idx) { 3890 /* In some cases if DCB is configured the num_[rx|tx]q 3891 * can be less than vsi->num_q_vectors. This check 3892 * accounts for that so we don't report a false failure 3893 */ 3894 if (v_idx >= vsi->num_rxq && v_idx >= vsi->num_txq) 3895 goto set_complete; 3896 3897 if (ice_set_q_coalesce(vsi, ec, v_idx)) 3898 return -EINVAL; 3899 3900 ice_set_q_vector_intrl(vsi->q_vectors[v_idx]); 3901 } 3902 goto set_complete; 3903 } 3904 3905 if (ice_set_q_coalesce(vsi, ec, q_num)) 3906 return -EINVAL; 3907 3908 ice_set_q_vector_intrl(vsi->q_vectors[q_num]); 3909 3910 set_complete: 3911 return 0; 3912 } 3913 3914 static int ice_set_coalesce(struct net_device *netdev, 3915 struct ethtool_coalesce *ec, 3916 struct kernel_ethtool_coalesce *kernel_coal, 3917 struct netlink_ext_ack *extack) 3918 { 3919 return __ice_set_coalesce(netdev, ec, -1); 3920 } 3921 3922 static int 3923 ice_set_per_q_coalesce(struct net_device *netdev, u32 q_num, 3924 struct ethtool_coalesce *ec) 3925 { 3926 return __ice_set_coalesce(netdev, ec, q_num); 3927 } 3928 3929 static void 3930 ice_repr_get_drvinfo(struct net_device *netdev, 3931 struct ethtool_drvinfo *drvinfo) 3932 { 3933 struct ice_repr *repr = ice_netdev_to_repr(netdev); 3934 3935 if (ice_check_vf_ready_for_cfg(repr->vf)) 3936 return; 3937 3938 __ice_get_drvinfo(netdev, drvinfo, repr->src_vsi); 3939 } 3940 3941 static void 3942 ice_repr_get_strings(struct net_device *netdev, u32 stringset, u8 *data) 3943 { 3944 struct ice_repr *repr = ice_netdev_to_repr(netdev); 3945 3946 /* for port representors only ETH_SS_STATS is supported */ 3947 if (ice_check_vf_ready_for_cfg(repr->vf) || 3948 stringset != ETH_SS_STATS) 3949 return; 3950 3951 __ice_get_strings(netdev, stringset, data, repr->src_vsi); 3952 } 3953 3954 static void 3955 ice_repr_get_ethtool_stats(struct net_device *netdev, 3956 struct ethtool_stats __always_unused *stats, 3957 u64 *data) 3958 { 3959 struct ice_repr *repr = ice_netdev_to_repr(netdev); 3960 3961 if (ice_check_vf_ready_for_cfg(repr->vf)) 3962 return; 3963 3964 __ice_get_ethtool_stats(netdev, stats, data, repr->src_vsi); 3965 } 3966 3967 static int ice_repr_get_sset_count(struct net_device *netdev, int sset) 3968 { 3969 switch (sset) { 3970 case ETH_SS_STATS: 3971 return ICE_VSI_STATS_LEN; 3972 default: 3973 return -EOPNOTSUPP; 3974 } 3975 } 3976 3977 #define ICE_I2C_EEPROM_DEV_ADDR 0xA0 3978 #define ICE_I2C_EEPROM_DEV_ADDR2 0xA2 3979 #define ICE_MODULE_TYPE_SFP 0x03 3980 #define ICE_MODULE_TYPE_QSFP_PLUS 0x0D 3981 #define ICE_MODULE_TYPE_QSFP28 0x11 3982 #define ICE_MODULE_SFF_ADDR_MODE 0x04 3983 #define ICE_MODULE_SFF_DIAG_CAPAB 0x40 3984 #define ICE_MODULE_REVISION_ADDR 0x01 3985 #define ICE_MODULE_SFF_8472_COMP 0x5E 3986 #define ICE_MODULE_SFF_8472_SWAP 0x5C 3987 #define ICE_MODULE_QSFP_MAX_LEN 640 3988 3989 /** 3990 * ice_get_module_info - get SFF module type and revision information 3991 * @netdev: network interface device structure 3992 * @modinfo: module EEPROM size and layout information structure 3993 */ 3994 static int 3995 ice_get_module_info(struct net_device *netdev, 3996 struct ethtool_modinfo *modinfo) 3997 { 3998 struct ice_netdev_priv *np = netdev_priv(netdev); 3999 struct ice_vsi *vsi = np->vsi; 4000 struct ice_pf *pf = vsi->back; 4001 struct ice_hw *hw = &pf->hw; 4002 u8 sff8472_comp = 0; 4003 u8 sff8472_swap = 0; 4004 u8 sff8636_rev = 0; 4005 u8 value = 0; 4006 int status; 4007 4008 status = ice_aq_sff_eeprom(hw, 0, ICE_I2C_EEPROM_DEV_ADDR, 0x00, 0x00, 4009 0, &value, 1, 0, NULL); 4010 if (status) 4011 return status; 4012 4013 switch (value) { 4014 case ICE_MODULE_TYPE_SFP: 4015 status = ice_aq_sff_eeprom(hw, 0, ICE_I2C_EEPROM_DEV_ADDR, 4016 ICE_MODULE_SFF_8472_COMP, 0x00, 0, 4017 &sff8472_comp, 1, 0, NULL); 4018 if (status) 4019 return status; 4020 status = ice_aq_sff_eeprom(hw, 0, ICE_I2C_EEPROM_DEV_ADDR, 4021 ICE_MODULE_SFF_8472_SWAP, 0x00, 0, 4022 &sff8472_swap, 1, 0, NULL); 4023 if (status) 4024 return status; 4025 4026 if (sff8472_swap & ICE_MODULE_SFF_ADDR_MODE) { 4027 modinfo->type = ETH_MODULE_SFF_8079; 4028 modinfo->eeprom_len = ETH_MODULE_SFF_8079_LEN; 4029 } else if (sff8472_comp && 4030 (sff8472_swap & ICE_MODULE_SFF_DIAG_CAPAB)) { 4031 modinfo->type = ETH_MODULE_SFF_8472; 4032 modinfo->eeprom_len = ETH_MODULE_SFF_8472_LEN; 4033 } else { 4034 modinfo->type = ETH_MODULE_SFF_8079; 4035 modinfo->eeprom_len = ETH_MODULE_SFF_8079_LEN; 4036 } 4037 break; 4038 case ICE_MODULE_TYPE_QSFP_PLUS: 4039 case ICE_MODULE_TYPE_QSFP28: 4040 status = ice_aq_sff_eeprom(hw, 0, ICE_I2C_EEPROM_DEV_ADDR, 4041 ICE_MODULE_REVISION_ADDR, 0x00, 0, 4042 &sff8636_rev, 1, 0, NULL); 4043 if (status) 4044 return status; 4045 /* Check revision compliance */ 4046 if (sff8636_rev > 0x02) { 4047 /* Module is SFF-8636 compliant */ 4048 modinfo->type = ETH_MODULE_SFF_8636; 4049 modinfo->eeprom_len = ICE_MODULE_QSFP_MAX_LEN; 4050 } else { 4051 modinfo->type = ETH_MODULE_SFF_8436; 4052 modinfo->eeprom_len = ICE_MODULE_QSFP_MAX_LEN; 4053 } 4054 break; 4055 default: 4056 netdev_warn(netdev, "SFF Module Type not recognized.\n"); 4057 return -EINVAL; 4058 } 4059 return 0; 4060 } 4061 4062 /** 4063 * ice_get_module_eeprom - fill buffer with SFF EEPROM contents 4064 * @netdev: network interface device structure 4065 * @ee: EEPROM dump request structure 4066 * @data: buffer to be filled with EEPROM contents 4067 */ 4068 static int 4069 ice_get_module_eeprom(struct net_device *netdev, 4070 struct ethtool_eeprom *ee, u8 *data) 4071 { 4072 struct ice_netdev_priv *np = netdev_priv(netdev); 4073 #define SFF_READ_BLOCK_SIZE 8 4074 u8 value[SFF_READ_BLOCK_SIZE] = { 0 }; 4075 u8 addr = ICE_I2C_EEPROM_DEV_ADDR; 4076 struct ice_vsi *vsi = np->vsi; 4077 struct ice_pf *pf = vsi->back; 4078 struct ice_hw *hw = &pf->hw; 4079 bool is_sfp = false; 4080 unsigned int i, j; 4081 u16 offset = 0; 4082 u8 page = 0; 4083 int status; 4084 4085 if (!ee || !ee->len || !data) 4086 return -EINVAL; 4087 4088 status = ice_aq_sff_eeprom(hw, 0, addr, offset, page, 0, value, 1, 0, 4089 NULL); 4090 if (status) 4091 return status; 4092 4093 if (value[0] == ICE_MODULE_TYPE_SFP) 4094 is_sfp = true; 4095 4096 memset(data, 0, ee->len); 4097 for (i = 0; i < ee->len; i += SFF_READ_BLOCK_SIZE) { 4098 offset = i + ee->offset; 4099 page = 0; 4100 4101 /* Check if we need to access the other memory page */ 4102 if (is_sfp) { 4103 if (offset >= ETH_MODULE_SFF_8079_LEN) { 4104 offset -= ETH_MODULE_SFF_8079_LEN; 4105 addr = ICE_I2C_EEPROM_DEV_ADDR2; 4106 } 4107 } else { 4108 while (offset >= ETH_MODULE_SFF_8436_LEN) { 4109 /* Compute memory page number and offset. */ 4110 offset -= ETH_MODULE_SFF_8436_LEN / 2; 4111 page++; 4112 } 4113 } 4114 4115 /* Bit 2 of EEPROM address 0x02 declares upper 4116 * pages are disabled on QSFP modules. 4117 * SFP modules only ever use page 0. 4118 */ 4119 if (page == 0 || !(data[0x2] & 0x4)) { 4120 /* If i2c bus is busy due to slow page change or 4121 * link management access, call can fail. This is normal. 4122 * So we retry this a few times. 4123 */ 4124 for (j = 0; j < 4; j++) { 4125 status = ice_aq_sff_eeprom(hw, 0, addr, offset, page, 4126 !is_sfp, value, 4127 SFF_READ_BLOCK_SIZE, 4128 0, NULL); 4129 netdev_dbg(netdev, "SFF %02X %02X %02X %X = %02X%02X%02X%02X.%02X%02X%02X%02X (%X)\n", 4130 addr, offset, page, is_sfp, 4131 value[0], value[1], value[2], value[3], 4132 value[4], value[5], value[6], value[7], 4133 status); 4134 if (status) { 4135 usleep_range(1500, 2500); 4136 memset(value, 0, SFF_READ_BLOCK_SIZE); 4137 continue; 4138 } 4139 break; 4140 } 4141 4142 /* Make sure we have enough room for the new block */ 4143 if ((i + SFF_READ_BLOCK_SIZE) < ee->len) 4144 memcpy(data + i, value, SFF_READ_BLOCK_SIZE); 4145 } 4146 } 4147 return 0; 4148 } 4149 4150 static const struct ethtool_ops ice_ethtool_ops = { 4151 .supported_coalesce_params = ETHTOOL_COALESCE_USECS | 4152 ETHTOOL_COALESCE_USE_ADAPTIVE | 4153 ETHTOOL_COALESCE_RX_USECS_HIGH, 4154 .get_link_ksettings = ice_get_link_ksettings, 4155 .set_link_ksettings = ice_set_link_ksettings, 4156 .get_drvinfo = ice_get_drvinfo, 4157 .get_regs_len = ice_get_regs_len, 4158 .get_regs = ice_get_regs, 4159 .get_wol = ice_get_wol, 4160 .set_wol = ice_set_wol, 4161 .get_msglevel = ice_get_msglevel, 4162 .set_msglevel = ice_set_msglevel, 4163 .self_test = ice_self_test, 4164 .get_link = ethtool_op_get_link, 4165 .get_eeprom_len = ice_get_eeprom_len, 4166 .get_eeprom = ice_get_eeprom, 4167 .get_coalesce = ice_get_coalesce, 4168 .set_coalesce = ice_set_coalesce, 4169 .get_strings = ice_get_strings, 4170 .set_phys_id = ice_set_phys_id, 4171 .get_ethtool_stats = ice_get_ethtool_stats, 4172 .get_priv_flags = ice_get_priv_flags, 4173 .set_priv_flags = ice_set_priv_flags, 4174 .get_sset_count = ice_get_sset_count, 4175 .get_rxnfc = ice_get_rxnfc, 4176 .set_rxnfc = ice_set_rxnfc, 4177 .get_ringparam = ice_get_ringparam, 4178 .set_ringparam = ice_set_ringparam, 4179 .nway_reset = ice_nway_reset, 4180 .get_pauseparam = ice_get_pauseparam, 4181 .set_pauseparam = ice_set_pauseparam, 4182 .get_rxfh_key_size = ice_get_rxfh_key_size, 4183 .get_rxfh_indir_size = ice_get_rxfh_indir_size, 4184 .get_rxfh_context = ice_get_rxfh_context, 4185 .get_rxfh = ice_get_rxfh, 4186 .set_rxfh = ice_set_rxfh, 4187 .get_channels = ice_get_channels, 4188 .set_channels = ice_set_channels, 4189 .get_ts_info = ice_get_ts_info, 4190 .get_per_queue_coalesce = ice_get_per_q_coalesce, 4191 .set_per_queue_coalesce = ice_set_per_q_coalesce, 4192 .get_fecparam = ice_get_fecparam, 4193 .set_fecparam = ice_set_fecparam, 4194 .get_module_info = ice_get_module_info, 4195 .get_module_eeprom = ice_get_module_eeprom, 4196 }; 4197 4198 static const struct ethtool_ops ice_ethtool_safe_mode_ops = { 4199 .get_link_ksettings = ice_get_link_ksettings, 4200 .set_link_ksettings = ice_set_link_ksettings, 4201 .get_drvinfo = ice_get_drvinfo, 4202 .get_regs_len = ice_get_regs_len, 4203 .get_regs = ice_get_regs, 4204 .get_wol = ice_get_wol, 4205 .set_wol = ice_set_wol, 4206 .get_msglevel = ice_get_msglevel, 4207 .set_msglevel = ice_set_msglevel, 4208 .get_link = ethtool_op_get_link, 4209 .get_eeprom_len = ice_get_eeprom_len, 4210 .get_eeprom = ice_get_eeprom, 4211 .get_strings = ice_get_strings, 4212 .get_ethtool_stats = ice_get_ethtool_stats, 4213 .get_sset_count = ice_get_sset_count, 4214 .get_ringparam = ice_get_ringparam, 4215 .set_ringparam = ice_set_ringparam, 4216 .nway_reset = ice_nway_reset, 4217 .get_channels = ice_get_channels, 4218 }; 4219 4220 /** 4221 * ice_set_ethtool_safe_mode_ops - setup safe mode ethtool ops 4222 * @netdev: network interface device structure 4223 */ 4224 void ice_set_ethtool_safe_mode_ops(struct net_device *netdev) 4225 { 4226 netdev->ethtool_ops = &ice_ethtool_safe_mode_ops; 4227 } 4228 4229 static const struct ethtool_ops ice_ethtool_repr_ops = { 4230 .get_drvinfo = ice_repr_get_drvinfo, 4231 .get_link = ethtool_op_get_link, 4232 .get_strings = ice_repr_get_strings, 4233 .get_ethtool_stats = ice_repr_get_ethtool_stats, 4234 .get_sset_count = ice_repr_get_sset_count, 4235 }; 4236 4237 /** 4238 * ice_set_ethtool_repr_ops - setup VF's port representor ethtool ops 4239 * @netdev: network interface device structure 4240 */ 4241 void ice_set_ethtool_repr_ops(struct net_device *netdev) 4242 { 4243 netdev->ethtool_ops = &ice_ethtool_repr_ops; 4244 } 4245 4246 /** 4247 * ice_set_ethtool_ops - setup netdev ethtool ops 4248 * @netdev: network interface device structure 4249 * 4250 * setup netdev ethtool ops with ice specific ops 4251 */ 4252 void ice_set_ethtool_ops(struct net_device *netdev) 4253 { 4254 netdev->ethtool_ops = &ice_ethtool_ops; 4255 } 4256