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(BIT(ICE_RX_FLEX_DESC_STATUS0_DD_S)) | 662 cpu_to_le16(BIT(ICE_RX_FLEX_DESC_STATUS0_EOF_S))))) 663 continue; 664 665 rx_buf = &rx_ring->rx_buf[i]; 666 received_buf = page_address(rx_buf->page) + rx_buf->page_offset; 667 668 if (ice_lbtest_check_frame(received_buf)) 669 valid_frames++; 670 } 671 672 return valid_frames; 673 } 674 675 /** 676 * ice_loopback_test - perform a loopback test on a given net_device 677 * @netdev: network interface device structure 678 * 679 * This function performs one of the self-tests required by ethtool. 680 * Returns 0 on success, non-zero on failure. 681 */ 682 static u64 ice_loopback_test(struct net_device *netdev) 683 { 684 struct ice_netdev_priv *np = netdev_priv(netdev); 685 struct ice_vsi *orig_vsi = np->vsi, *test_vsi; 686 struct ice_pf *pf = orig_vsi->back; 687 u8 broadcast[ETH_ALEN], ret = 0; 688 int num_frames, valid_frames; 689 struct ice_tx_ring *tx_ring; 690 struct ice_rx_ring *rx_ring; 691 struct device *dev; 692 u8 *tx_frame; 693 int i; 694 695 dev = ice_pf_to_dev(pf); 696 netdev_info(netdev, "loopback test\n"); 697 698 test_vsi = ice_lb_vsi_setup(pf, pf->hw.port_info); 699 if (!test_vsi) { 700 netdev_err(netdev, "Failed to create a VSI for the loopback test\n"); 701 return 1; 702 } 703 704 test_vsi->netdev = netdev; 705 tx_ring = test_vsi->tx_rings[0]; 706 rx_ring = test_vsi->rx_rings[0]; 707 708 if (ice_lbtest_prepare_rings(test_vsi)) { 709 ret = 2; 710 goto lbtest_vsi_close; 711 } 712 713 if (ice_alloc_rx_bufs(rx_ring, rx_ring->count)) { 714 ret = 3; 715 goto lbtest_rings_dis; 716 } 717 718 /* Enable MAC loopback in firmware */ 719 if (ice_aq_set_mac_loopback(&pf->hw, true, NULL)) { 720 ret = 4; 721 goto lbtest_mac_dis; 722 } 723 724 /* Test VSI needs to receive broadcast packets */ 725 eth_broadcast_addr(broadcast); 726 if (ice_fltr_add_mac(test_vsi, broadcast, ICE_FWD_TO_VSI)) { 727 ret = 5; 728 goto lbtest_mac_dis; 729 } 730 731 if (ice_lbtest_create_frame(pf, &tx_frame, ICE_LB_FRAME_SIZE)) { 732 ret = 7; 733 goto remove_mac_filters; 734 } 735 736 num_frames = min_t(int, tx_ring->count, 32); 737 for (i = 0; i < num_frames; i++) { 738 if (ice_diag_send(tx_ring, tx_frame, ICE_LB_FRAME_SIZE)) { 739 ret = 8; 740 goto lbtest_free_frame; 741 } 742 } 743 744 valid_frames = ice_lbtest_receive_frames(rx_ring); 745 if (!valid_frames) 746 ret = 9; 747 else if (valid_frames != num_frames) 748 ret = 10; 749 750 lbtest_free_frame: 751 devm_kfree(dev, tx_frame); 752 remove_mac_filters: 753 if (ice_fltr_remove_mac(test_vsi, broadcast, ICE_FWD_TO_VSI)) 754 netdev_err(netdev, "Could not remove MAC filter for the test VSI\n"); 755 lbtest_mac_dis: 756 /* Disable MAC loopback after the test is completed. */ 757 if (ice_aq_set_mac_loopback(&pf->hw, false, NULL)) 758 netdev_err(netdev, "Could not disable MAC loopback\n"); 759 lbtest_rings_dis: 760 if (ice_lbtest_disable_rings(test_vsi)) 761 netdev_err(netdev, "Could not disable test rings\n"); 762 lbtest_vsi_close: 763 test_vsi->netdev = NULL; 764 if (ice_vsi_release(test_vsi)) 765 netdev_err(netdev, "Failed to remove the test VSI\n"); 766 767 return ret; 768 } 769 770 /** 771 * ice_intr_test - perform an interrupt test on a given net_device 772 * @netdev: network interface device structure 773 * 774 * This function performs one of the self-tests required by ethtool. 775 * Returns 0 on success, non-zero on failure. 776 */ 777 static u64 ice_intr_test(struct net_device *netdev) 778 { 779 struct ice_netdev_priv *np = netdev_priv(netdev); 780 struct ice_pf *pf = np->vsi->back; 781 u16 swic_old = pf->sw_int_count; 782 783 netdev_info(netdev, "interrupt test\n"); 784 785 wr32(&pf->hw, GLINT_DYN_CTL(pf->oicr_idx), 786 GLINT_DYN_CTL_SW_ITR_INDX_M | 787 GLINT_DYN_CTL_INTENA_MSK_M | 788 GLINT_DYN_CTL_SWINT_TRIG_M); 789 790 usleep_range(1000, 2000); 791 return (swic_old == pf->sw_int_count); 792 } 793 794 /** 795 * ice_self_test - handler function for performing a self-test by ethtool 796 * @netdev: network interface device structure 797 * @eth_test: ethtool_test structure 798 * @data: required by ethtool.self_test 799 * 800 * This function is called after invoking 'ethtool -t devname' command where 801 * devname is the name of the network device on which ethtool should operate. 802 * It performs a set of self-tests to check if a device works properly. 803 */ 804 static void 805 ice_self_test(struct net_device *netdev, struct ethtool_test *eth_test, 806 u64 *data) 807 { 808 struct ice_netdev_priv *np = netdev_priv(netdev); 809 bool if_running = netif_running(netdev); 810 struct ice_pf *pf = np->vsi->back; 811 struct device *dev; 812 813 dev = ice_pf_to_dev(pf); 814 815 if (eth_test->flags == ETH_TEST_FL_OFFLINE) { 816 netdev_info(netdev, "offline testing starting\n"); 817 818 set_bit(ICE_TESTING, pf->state); 819 820 if (ice_active_vfs(pf)) { 821 dev_warn(dev, "Please take active VFs and Netqueues offline and restart the adapter before running NIC diagnostics\n"); 822 data[ICE_ETH_TEST_REG] = 1; 823 data[ICE_ETH_TEST_EEPROM] = 1; 824 data[ICE_ETH_TEST_INTR] = 1; 825 data[ICE_ETH_TEST_LOOP] = 1; 826 data[ICE_ETH_TEST_LINK] = 1; 827 eth_test->flags |= ETH_TEST_FL_FAILED; 828 clear_bit(ICE_TESTING, pf->state); 829 goto skip_ol_tests; 830 } 831 /* If the device is online then take it offline */ 832 if (if_running) 833 /* indicate we're in test mode */ 834 ice_stop(netdev); 835 836 data[ICE_ETH_TEST_LINK] = ice_link_test(netdev); 837 data[ICE_ETH_TEST_EEPROM] = ice_eeprom_test(netdev); 838 data[ICE_ETH_TEST_INTR] = ice_intr_test(netdev); 839 data[ICE_ETH_TEST_LOOP] = ice_loopback_test(netdev); 840 data[ICE_ETH_TEST_REG] = ice_reg_test(netdev); 841 842 if (data[ICE_ETH_TEST_LINK] || 843 data[ICE_ETH_TEST_EEPROM] || 844 data[ICE_ETH_TEST_LOOP] || 845 data[ICE_ETH_TEST_INTR] || 846 data[ICE_ETH_TEST_REG]) 847 eth_test->flags |= ETH_TEST_FL_FAILED; 848 849 clear_bit(ICE_TESTING, pf->state); 850 851 if (if_running) { 852 int status = ice_open(netdev); 853 854 if (status) { 855 dev_err(dev, "Could not open device %s, err %d\n", 856 pf->int_name, status); 857 } 858 } 859 } else { 860 /* Online tests */ 861 netdev_info(netdev, "online testing starting\n"); 862 863 data[ICE_ETH_TEST_LINK] = ice_link_test(netdev); 864 if (data[ICE_ETH_TEST_LINK]) 865 eth_test->flags |= ETH_TEST_FL_FAILED; 866 867 /* Offline only tests, not run in online; pass by default */ 868 data[ICE_ETH_TEST_REG] = 0; 869 data[ICE_ETH_TEST_EEPROM] = 0; 870 data[ICE_ETH_TEST_INTR] = 0; 871 data[ICE_ETH_TEST_LOOP] = 0; 872 } 873 874 skip_ol_tests: 875 netdev_info(netdev, "testing finished\n"); 876 } 877 878 static void 879 __ice_get_strings(struct net_device *netdev, u32 stringset, u8 *data, 880 struct ice_vsi *vsi) 881 { 882 unsigned int i; 883 u8 *p = data; 884 885 switch (stringset) { 886 case ETH_SS_STATS: 887 for (i = 0; i < ICE_VSI_STATS_LEN; i++) 888 ethtool_sprintf(&p, 889 ice_gstrings_vsi_stats[i].stat_string); 890 891 if (ice_is_port_repr_netdev(netdev)) 892 return; 893 894 ice_for_each_alloc_txq(vsi, i) { 895 ethtool_sprintf(&p, "tx_queue_%u_packets", i); 896 ethtool_sprintf(&p, "tx_queue_%u_bytes", i); 897 } 898 899 ice_for_each_alloc_rxq(vsi, i) { 900 ethtool_sprintf(&p, "rx_queue_%u_packets", i); 901 ethtool_sprintf(&p, "rx_queue_%u_bytes", i); 902 } 903 904 if (vsi->type != ICE_VSI_PF) 905 return; 906 907 for (i = 0; i < ICE_PF_STATS_LEN; i++) 908 ethtool_sprintf(&p, 909 ice_gstrings_pf_stats[i].stat_string); 910 911 for (i = 0; i < ICE_MAX_USER_PRIORITY; i++) { 912 ethtool_sprintf(&p, "tx_priority_%u_xon.nic", i); 913 ethtool_sprintf(&p, "tx_priority_%u_xoff.nic", i); 914 } 915 for (i = 0; i < ICE_MAX_USER_PRIORITY; i++) { 916 ethtool_sprintf(&p, "rx_priority_%u_xon.nic", i); 917 ethtool_sprintf(&p, "rx_priority_%u_xoff.nic", i); 918 } 919 break; 920 case ETH_SS_TEST: 921 memcpy(data, ice_gstrings_test, ICE_TEST_LEN * ETH_GSTRING_LEN); 922 break; 923 case ETH_SS_PRIV_FLAGS: 924 for (i = 0; i < ICE_PRIV_FLAG_ARRAY_SIZE; i++) 925 ethtool_sprintf(&p, ice_gstrings_priv_flags[i].name); 926 break; 927 default: 928 break; 929 } 930 } 931 932 static void ice_get_strings(struct net_device *netdev, u32 stringset, u8 *data) 933 { 934 struct ice_netdev_priv *np = netdev_priv(netdev); 935 936 __ice_get_strings(netdev, stringset, data, np->vsi); 937 } 938 939 static int 940 ice_set_phys_id(struct net_device *netdev, enum ethtool_phys_id_state state) 941 { 942 struct ice_netdev_priv *np = netdev_priv(netdev); 943 bool led_active; 944 945 switch (state) { 946 case ETHTOOL_ID_ACTIVE: 947 led_active = true; 948 break; 949 case ETHTOOL_ID_INACTIVE: 950 led_active = false; 951 break; 952 default: 953 return -EINVAL; 954 } 955 956 if (ice_aq_set_port_id_led(np->vsi->port_info, !led_active, NULL)) 957 return -EIO; 958 959 return 0; 960 } 961 962 /** 963 * ice_set_fec_cfg - Set link FEC options 964 * @netdev: network interface device structure 965 * @req_fec: FEC mode to configure 966 */ 967 static int ice_set_fec_cfg(struct net_device *netdev, enum ice_fec_mode req_fec) 968 { 969 struct ice_netdev_priv *np = netdev_priv(netdev); 970 struct ice_aqc_set_phy_cfg_data config = { 0 }; 971 struct ice_vsi *vsi = np->vsi; 972 struct ice_port_info *pi; 973 974 pi = vsi->port_info; 975 if (!pi) 976 return -EOPNOTSUPP; 977 978 /* Changing the FEC parameters is not supported if not the PF VSI */ 979 if (vsi->type != ICE_VSI_PF) { 980 netdev_info(netdev, "Changing FEC parameters only supported for PF VSI\n"); 981 return -EOPNOTSUPP; 982 } 983 984 /* Proceed only if requesting different FEC mode */ 985 if (pi->phy.curr_user_fec_req == req_fec) 986 return 0; 987 988 /* Copy the current user PHY configuration. The current user PHY 989 * configuration is initialized during probe from PHY capabilities 990 * software mode, and updated on set PHY configuration. 991 */ 992 memcpy(&config, &pi->phy.curr_user_phy_cfg, sizeof(config)); 993 994 ice_cfg_phy_fec(pi, &config, req_fec); 995 config.caps |= ICE_AQ_PHY_ENA_AUTO_LINK_UPDT; 996 997 if (ice_aq_set_phy_cfg(pi->hw, pi, &config, NULL)) 998 return -EAGAIN; 999 1000 /* Save requested FEC config */ 1001 pi->phy.curr_user_fec_req = req_fec; 1002 1003 return 0; 1004 } 1005 1006 /** 1007 * ice_set_fecparam - Set FEC link options 1008 * @netdev: network interface device structure 1009 * @fecparam: Ethtool structure to retrieve FEC parameters 1010 */ 1011 static int 1012 ice_set_fecparam(struct net_device *netdev, struct ethtool_fecparam *fecparam) 1013 { 1014 struct ice_netdev_priv *np = netdev_priv(netdev); 1015 struct ice_vsi *vsi = np->vsi; 1016 enum ice_fec_mode fec; 1017 1018 switch (fecparam->fec) { 1019 case ETHTOOL_FEC_AUTO: 1020 fec = ICE_FEC_AUTO; 1021 break; 1022 case ETHTOOL_FEC_RS: 1023 fec = ICE_FEC_RS; 1024 break; 1025 case ETHTOOL_FEC_BASER: 1026 fec = ICE_FEC_BASER; 1027 break; 1028 case ETHTOOL_FEC_OFF: 1029 case ETHTOOL_FEC_NONE: 1030 fec = ICE_FEC_NONE; 1031 break; 1032 default: 1033 dev_warn(ice_pf_to_dev(vsi->back), "Unsupported FEC mode: %d\n", 1034 fecparam->fec); 1035 return -EINVAL; 1036 } 1037 1038 return ice_set_fec_cfg(netdev, fec); 1039 } 1040 1041 /** 1042 * ice_get_fecparam - Get link FEC options 1043 * @netdev: network interface device structure 1044 * @fecparam: Ethtool structure to retrieve FEC parameters 1045 */ 1046 static int 1047 ice_get_fecparam(struct net_device *netdev, struct ethtool_fecparam *fecparam) 1048 { 1049 struct ice_netdev_priv *np = netdev_priv(netdev); 1050 struct ice_aqc_get_phy_caps_data *caps; 1051 struct ice_link_status *link_info; 1052 struct ice_vsi *vsi = np->vsi; 1053 struct ice_port_info *pi; 1054 int err; 1055 1056 pi = vsi->port_info; 1057 1058 if (!pi) 1059 return -EOPNOTSUPP; 1060 link_info = &pi->phy.link_info; 1061 1062 /* Set FEC mode based on negotiated link info */ 1063 switch (link_info->fec_info) { 1064 case ICE_AQ_LINK_25G_KR_FEC_EN: 1065 fecparam->active_fec = ETHTOOL_FEC_BASER; 1066 break; 1067 case ICE_AQ_LINK_25G_RS_528_FEC_EN: 1068 case ICE_AQ_LINK_25G_RS_544_FEC_EN: 1069 fecparam->active_fec = ETHTOOL_FEC_RS; 1070 break; 1071 default: 1072 fecparam->active_fec = ETHTOOL_FEC_OFF; 1073 break; 1074 } 1075 1076 caps = kzalloc(sizeof(*caps), GFP_KERNEL); 1077 if (!caps) 1078 return -ENOMEM; 1079 1080 err = ice_aq_get_phy_caps(pi, false, ICE_AQC_REPORT_TOPO_CAP_MEDIA, 1081 caps, NULL); 1082 if (err) 1083 goto done; 1084 1085 /* Set supported/configured FEC modes based on PHY capability */ 1086 if (caps->caps & ICE_AQC_PHY_EN_AUTO_FEC) 1087 fecparam->fec |= ETHTOOL_FEC_AUTO; 1088 if (caps->link_fec_options & ICE_AQC_PHY_FEC_10G_KR_40G_KR4_EN || 1089 caps->link_fec_options & ICE_AQC_PHY_FEC_10G_KR_40G_KR4_REQ || 1090 caps->link_fec_options & ICE_AQC_PHY_FEC_25G_KR_CLAUSE74_EN || 1091 caps->link_fec_options & ICE_AQC_PHY_FEC_25G_KR_REQ) 1092 fecparam->fec |= ETHTOOL_FEC_BASER; 1093 if (caps->link_fec_options & ICE_AQC_PHY_FEC_25G_RS_528_REQ || 1094 caps->link_fec_options & ICE_AQC_PHY_FEC_25G_RS_544_REQ || 1095 caps->link_fec_options & ICE_AQC_PHY_FEC_25G_RS_CLAUSE91_EN) 1096 fecparam->fec |= ETHTOOL_FEC_RS; 1097 if (caps->link_fec_options == 0) 1098 fecparam->fec |= ETHTOOL_FEC_OFF; 1099 1100 done: 1101 kfree(caps); 1102 return err; 1103 } 1104 1105 /** 1106 * ice_nway_reset - restart autonegotiation 1107 * @netdev: network interface device structure 1108 */ 1109 static int ice_nway_reset(struct net_device *netdev) 1110 { 1111 struct ice_netdev_priv *np = netdev_priv(netdev); 1112 struct ice_vsi *vsi = np->vsi; 1113 int err; 1114 1115 /* If VSI state is up, then restart autoneg with link up */ 1116 if (!test_bit(ICE_DOWN, vsi->back->state)) 1117 err = ice_set_link(vsi, true); 1118 else 1119 err = ice_set_link(vsi, false); 1120 1121 return err; 1122 } 1123 1124 /** 1125 * ice_get_priv_flags - report device private flags 1126 * @netdev: network interface device structure 1127 * 1128 * The get string set count and the string set should be matched for each 1129 * flag returned. Add new strings for each flag to the ice_gstrings_priv_flags 1130 * array. 1131 * 1132 * Returns a u32 bitmap of flags. 1133 */ 1134 static u32 ice_get_priv_flags(struct net_device *netdev) 1135 { 1136 struct ice_netdev_priv *np = netdev_priv(netdev); 1137 struct ice_vsi *vsi = np->vsi; 1138 struct ice_pf *pf = vsi->back; 1139 u32 i, ret_flags = 0; 1140 1141 for (i = 0; i < ICE_PRIV_FLAG_ARRAY_SIZE; i++) { 1142 const struct ice_priv_flag *priv_flag; 1143 1144 priv_flag = &ice_gstrings_priv_flags[i]; 1145 1146 if (test_bit(priv_flag->bitno, pf->flags)) 1147 ret_flags |= BIT(i); 1148 } 1149 1150 return ret_flags; 1151 } 1152 1153 /** 1154 * ice_set_priv_flags - set private flags 1155 * @netdev: network interface device structure 1156 * @flags: bit flags to be set 1157 */ 1158 static int ice_set_priv_flags(struct net_device *netdev, u32 flags) 1159 { 1160 struct ice_netdev_priv *np = netdev_priv(netdev); 1161 DECLARE_BITMAP(change_flags, ICE_PF_FLAGS_NBITS); 1162 DECLARE_BITMAP(orig_flags, ICE_PF_FLAGS_NBITS); 1163 struct ice_vsi *vsi = np->vsi; 1164 struct ice_pf *pf = vsi->back; 1165 struct device *dev; 1166 int ret = 0; 1167 u32 i; 1168 1169 if (flags > BIT(ICE_PRIV_FLAG_ARRAY_SIZE)) 1170 return -EINVAL; 1171 1172 dev = ice_pf_to_dev(pf); 1173 set_bit(ICE_FLAG_ETHTOOL_CTXT, pf->flags); 1174 1175 bitmap_copy(orig_flags, pf->flags, ICE_PF_FLAGS_NBITS); 1176 for (i = 0; i < ICE_PRIV_FLAG_ARRAY_SIZE; i++) { 1177 const struct ice_priv_flag *priv_flag; 1178 1179 priv_flag = &ice_gstrings_priv_flags[i]; 1180 1181 if (flags & BIT(i)) 1182 set_bit(priv_flag->bitno, pf->flags); 1183 else 1184 clear_bit(priv_flag->bitno, pf->flags); 1185 } 1186 1187 bitmap_xor(change_flags, pf->flags, orig_flags, ICE_PF_FLAGS_NBITS); 1188 1189 /* Do not allow change to link-down-on-close when Total Port Shutdown 1190 * is enabled. 1191 */ 1192 if (test_bit(ICE_FLAG_LINK_DOWN_ON_CLOSE_ENA, change_flags) && 1193 test_bit(ICE_FLAG_TOTAL_PORT_SHUTDOWN_ENA, pf->flags)) { 1194 dev_err(dev, "Setting link-down-on-close not supported on this port\n"); 1195 set_bit(ICE_FLAG_LINK_DOWN_ON_CLOSE_ENA, pf->flags); 1196 ret = -EINVAL; 1197 goto ethtool_exit; 1198 } 1199 1200 if (test_bit(ICE_FLAG_FW_LLDP_AGENT, change_flags)) { 1201 if (!test_bit(ICE_FLAG_FW_LLDP_AGENT, pf->flags)) { 1202 int status; 1203 1204 /* Disable FW LLDP engine */ 1205 status = ice_cfg_lldp_mib_change(&pf->hw, false); 1206 1207 /* If unregistering for LLDP events fails, this is 1208 * not an error state, as there shouldn't be any 1209 * events to respond to. 1210 */ 1211 if (status) 1212 dev_info(dev, "Failed to unreg for LLDP events\n"); 1213 1214 /* The AQ call to stop the FW LLDP agent will generate 1215 * an error if the agent is already stopped. 1216 */ 1217 status = ice_aq_stop_lldp(&pf->hw, true, true, NULL); 1218 if (status) 1219 dev_warn(dev, "Fail to stop LLDP agent\n"); 1220 /* Use case for having the FW LLDP agent stopped 1221 * will likely not need DCB, so failure to init is 1222 * not a concern of ethtool 1223 */ 1224 status = ice_init_pf_dcb(pf, true); 1225 if (status) 1226 dev_warn(dev, "Fail to init DCB\n"); 1227 1228 pf->dcbx_cap &= ~DCB_CAP_DCBX_LLD_MANAGED; 1229 pf->dcbx_cap |= DCB_CAP_DCBX_HOST; 1230 } else { 1231 bool dcbx_agent_status; 1232 int status; 1233 1234 if (ice_get_pfc_mode(pf) == ICE_QOS_MODE_DSCP) { 1235 clear_bit(ICE_FLAG_FW_LLDP_AGENT, pf->flags); 1236 dev_err(dev, "QoS in L3 DSCP mode, FW Agent not allowed to start\n"); 1237 ret = -EOPNOTSUPP; 1238 goto ethtool_exit; 1239 } 1240 1241 /* Remove rule to direct LLDP packets to default VSI. 1242 * The FW LLDP engine will now be consuming them. 1243 */ 1244 ice_cfg_sw_lldp(vsi, false, false); 1245 1246 /* AQ command to start FW LLDP agent will return an 1247 * error if the agent is already started 1248 */ 1249 status = ice_aq_start_lldp(&pf->hw, true, NULL); 1250 if (status) 1251 dev_warn(dev, "Fail to start LLDP Agent\n"); 1252 1253 /* AQ command to start FW DCBX agent will fail if 1254 * the agent is already started 1255 */ 1256 status = ice_aq_start_stop_dcbx(&pf->hw, true, 1257 &dcbx_agent_status, 1258 NULL); 1259 if (status) 1260 dev_dbg(dev, "Failed to start FW DCBX\n"); 1261 1262 dev_info(dev, "FW DCBX agent is %s\n", 1263 dcbx_agent_status ? "ACTIVE" : "DISABLED"); 1264 1265 /* Failure to configure MIB change or init DCB is not 1266 * relevant to ethtool. Print notification that 1267 * registration/init failed but do not return error 1268 * state to ethtool 1269 */ 1270 status = ice_init_pf_dcb(pf, true); 1271 if (status) 1272 dev_dbg(dev, "Fail to init DCB\n"); 1273 1274 /* Register for MIB change events */ 1275 status = ice_cfg_lldp_mib_change(&pf->hw, true); 1276 if (status) 1277 dev_dbg(dev, "Fail to enable MIB change events\n"); 1278 1279 pf->dcbx_cap &= ~DCB_CAP_DCBX_HOST; 1280 pf->dcbx_cap |= DCB_CAP_DCBX_LLD_MANAGED; 1281 1282 ice_nway_reset(netdev); 1283 } 1284 } 1285 if (test_bit(ICE_FLAG_LEGACY_RX, change_flags)) { 1286 /* down and up VSI so that changes of Rx cfg are reflected. */ 1287 if (!test_and_set_bit(ICE_VSI_DOWN, vsi->state)) { 1288 ice_down(vsi); 1289 ice_up(vsi); 1290 } 1291 } 1292 /* don't allow modification of this flag when a single VF is in 1293 * promiscuous mode because it's not supported 1294 */ 1295 if (test_bit(ICE_FLAG_VF_TRUE_PROMISC_ENA, change_flags) && 1296 ice_is_any_vf_in_unicast_promisc(pf)) { 1297 dev_err(dev, "Changing vf-true-promisc-support flag while VF(s) are in promiscuous mode not supported\n"); 1298 /* toggle bit back to previous state */ 1299 change_bit(ICE_FLAG_VF_TRUE_PROMISC_ENA, pf->flags); 1300 ret = -EAGAIN; 1301 } 1302 1303 if (test_bit(ICE_FLAG_VF_VLAN_PRUNING, change_flags) && 1304 ice_has_vfs(pf)) { 1305 dev_err(dev, "vf-vlan-pruning: VLAN pruning cannot be changed while VFs are active.\n"); 1306 /* toggle bit back to previous state */ 1307 change_bit(ICE_FLAG_VF_VLAN_PRUNING, pf->flags); 1308 ret = -EOPNOTSUPP; 1309 } 1310 ethtool_exit: 1311 clear_bit(ICE_FLAG_ETHTOOL_CTXT, pf->flags); 1312 return ret; 1313 } 1314 1315 static int ice_get_sset_count(struct net_device *netdev, int sset) 1316 { 1317 switch (sset) { 1318 case ETH_SS_STATS: 1319 /* The number (and order) of strings reported *must* remain 1320 * constant for a given netdevice. This function must not 1321 * report a different number based on run time parameters 1322 * (such as the number of queues in use, or the setting of 1323 * a private ethtool flag). This is due to the nature of the 1324 * ethtool stats API. 1325 * 1326 * Userspace programs such as ethtool must make 3 separate 1327 * ioctl requests, one for size, one for the strings, and 1328 * finally one for the stats. Since these cross into 1329 * userspace, changes to the number or size could result in 1330 * undefined memory access or incorrect string<->value 1331 * correlations for statistics. 1332 * 1333 * Even if it appears to be safe, changes to the size or 1334 * order of strings will suffer from race conditions and are 1335 * not safe. 1336 */ 1337 return ICE_ALL_STATS_LEN(netdev); 1338 case ETH_SS_TEST: 1339 return ICE_TEST_LEN; 1340 case ETH_SS_PRIV_FLAGS: 1341 return ICE_PRIV_FLAG_ARRAY_SIZE; 1342 default: 1343 return -EOPNOTSUPP; 1344 } 1345 } 1346 1347 static void 1348 __ice_get_ethtool_stats(struct net_device *netdev, 1349 struct ethtool_stats __always_unused *stats, u64 *data, 1350 struct ice_vsi *vsi) 1351 { 1352 struct ice_pf *pf = vsi->back; 1353 struct ice_tx_ring *tx_ring; 1354 struct ice_rx_ring *rx_ring; 1355 unsigned int j; 1356 int i = 0; 1357 char *p; 1358 1359 ice_update_pf_stats(pf); 1360 ice_update_vsi_stats(vsi); 1361 1362 for (j = 0; j < ICE_VSI_STATS_LEN; j++) { 1363 p = (char *)vsi + ice_gstrings_vsi_stats[j].stat_offset; 1364 data[i++] = (ice_gstrings_vsi_stats[j].sizeof_stat == 1365 sizeof(u64)) ? *(u64 *)p : *(u32 *)p; 1366 } 1367 1368 if (ice_is_port_repr_netdev(netdev)) 1369 return; 1370 1371 /* populate per queue stats */ 1372 rcu_read_lock(); 1373 1374 ice_for_each_alloc_txq(vsi, j) { 1375 tx_ring = READ_ONCE(vsi->tx_rings[j]); 1376 if (tx_ring) { 1377 data[i++] = tx_ring->stats.pkts; 1378 data[i++] = tx_ring->stats.bytes; 1379 } else { 1380 data[i++] = 0; 1381 data[i++] = 0; 1382 } 1383 } 1384 1385 ice_for_each_alloc_rxq(vsi, j) { 1386 rx_ring = READ_ONCE(vsi->rx_rings[j]); 1387 if (rx_ring) { 1388 data[i++] = rx_ring->stats.pkts; 1389 data[i++] = rx_ring->stats.bytes; 1390 } else { 1391 data[i++] = 0; 1392 data[i++] = 0; 1393 } 1394 } 1395 1396 rcu_read_unlock(); 1397 1398 if (vsi->type != ICE_VSI_PF) 1399 return; 1400 1401 for (j = 0; j < ICE_PF_STATS_LEN; j++) { 1402 p = (char *)pf + ice_gstrings_pf_stats[j].stat_offset; 1403 data[i++] = (ice_gstrings_pf_stats[j].sizeof_stat == 1404 sizeof(u64)) ? *(u64 *)p : *(u32 *)p; 1405 } 1406 1407 for (j = 0; j < ICE_MAX_USER_PRIORITY; j++) { 1408 data[i++] = pf->stats.priority_xon_tx[j]; 1409 data[i++] = pf->stats.priority_xoff_tx[j]; 1410 } 1411 1412 for (j = 0; j < ICE_MAX_USER_PRIORITY; j++) { 1413 data[i++] = pf->stats.priority_xon_rx[j]; 1414 data[i++] = pf->stats.priority_xoff_rx[j]; 1415 } 1416 } 1417 1418 static void 1419 ice_get_ethtool_stats(struct net_device *netdev, 1420 struct ethtool_stats __always_unused *stats, u64 *data) 1421 { 1422 struct ice_netdev_priv *np = netdev_priv(netdev); 1423 1424 __ice_get_ethtool_stats(netdev, stats, data, np->vsi); 1425 } 1426 1427 #define ICE_PHY_TYPE_LOW_MASK_MIN_1G (ICE_PHY_TYPE_LOW_100BASE_TX | \ 1428 ICE_PHY_TYPE_LOW_100M_SGMII) 1429 1430 #define ICE_PHY_TYPE_LOW_MASK_MIN_25G (ICE_PHY_TYPE_LOW_MASK_MIN_1G | \ 1431 ICE_PHY_TYPE_LOW_1000BASE_T | \ 1432 ICE_PHY_TYPE_LOW_1000BASE_SX | \ 1433 ICE_PHY_TYPE_LOW_1000BASE_LX | \ 1434 ICE_PHY_TYPE_LOW_1000BASE_KX | \ 1435 ICE_PHY_TYPE_LOW_1G_SGMII | \ 1436 ICE_PHY_TYPE_LOW_2500BASE_T | \ 1437 ICE_PHY_TYPE_LOW_2500BASE_X | \ 1438 ICE_PHY_TYPE_LOW_2500BASE_KX | \ 1439 ICE_PHY_TYPE_LOW_5GBASE_T | \ 1440 ICE_PHY_TYPE_LOW_5GBASE_KR | \ 1441 ICE_PHY_TYPE_LOW_10GBASE_T | \ 1442 ICE_PHY_TYPE_LOW_10G_SFI_DA | \ 1443 ICE_PHY_TYPE_LOW_10GBASE_SR | \ 1444 ICE_PHY_TYPE_LOW_10GBASE_LR | \ 1445 ICE_PHY_TYPE_LOW_10GBASE_KR_CR1 | \ 1446 ICE_PHY_TYPE_LOW_10G_SFI_AOC_ACC | \ 1447 ICE_PHY_TYPE_LOW_10G_SFI_C2C) 1448 1449 #define ICE_PHY_TYPE_LOW_MASK_100G (ICE_PHY_TYPE_LOW_100GBASE_CR4 | \ 1450 ICE_PHY_TYPE_LOW_100GBASE_SR4 | \ 1451 ICE_PHY_TYPE_LOW_100GBASE_LR4 | \ 1452 ICE_PHY_TYPE_LOW_100GBASE_KR4 | \ 1453 ICE_PHY_TYPE_LOW_100G_CAUI4_AOC_ACC | \ 1454 ICE_PHY_TYPE_LOW_100G_CAUI4 | \ 1455 ICE_PHY_TYPE_LOW_100G_AUI4_AOC_ACC | \ 1456 ICE_PHY_TYPE_LOW_100G_AUI4 | \ 1457 ICE_PHY_TYPE_LOW_100GBASE_CR_PAM4 | \ 1458 ICE_PHY_TYPE_LOW_100GBASE_KR_PAM4 | \ 1459 ICE_PHY_TYPE_LOW_100GBASE_CP2 | \ 1460 ICE_PHY_TYPE_LOW_100GBASE_SR2 | \ 1461 ICE_PHY_TYPE_LOW_100GBASE_DR) 1462 1463 #define ICE_PHY_TYPE_HIGH_MASK_100G (ICE_PHY_TYPE_HIGH_100GBASE_KR2_PAM4 | \ 1464 ICE_PHY_TYPE_HIGH_100G_CAUI2_AOC_ACC |\ 1465 ICE_PHY_TYPE_HIGH_100G_CAUI2 | \ 1466 ICE_PHY_TYPE_HIGH_100G_AUI2_AOC_ACC | \ 1467 ICE_PHY_TYPE_HIGH_100G_AUI2) 1468 1469 /** 1470 * ice_mask_min_supported_speeds 1471 * @phy_types_high: PHY type high 1472 * @phy_types_low: PHY type low to apply minimum supported speeds mask 1473 * 1474 * Apply minimum supported speeds mask to PHY type low. These are the speeds 1475 * for ethtool supported link mode. 1476 */ 1477 static 1478 void ice_mask_min_supported_speeds(u64 phy_types_high, u64 *phy_types_low) 1479 { 1480 /* if QSFP connection with 100G speed, minimum supported speed is 25G */ 1481 if (*phy_types_low & ICE_PHY_TYPE_LOW_MASK_100G || 1482 phy_types_high & ICE_PHY_TYPE_HIGH_MASK_100G) 1483 *phy_types_low &= ~ICE_PHY_TYPE_LOW_MASK_MIN_25G; 1484 else 1485 *phy_types_low &= ~ICE_PHY_TYPE_LOW_MASK_MIN_1G; 1486 } 1487 1488 #define ice_ethtool_advertise_link_mode(aq_link_speed, ethtool_link_mode) \ 1489 do { \ 1490 if (req_speeds & (aq_link_speed) || \ 1491 (!req_speeds && \ 1492 (advert_phy_type_lo & phy_type_mask_lo || \ 1493 advert_phy_type_hi & phy_type_mask_hi))) \ 1494 ethtool_link_ksettings_add_link_mode(ks, advertising,\ 1495 ethtool_link_mode); \ 1496 } while (0) 1497 1498 /** 1499 * ice_phy_type_to_ethtool - convert the phy_types to ethtool link modes 1500 * @netdev: network interface device structure 1501 * @ks: ethtool link ksettings struct to fill out 1502 */ 1503 static void 1504 ice_phy_type_to_ethtool(struct net_device *netdev, 1505 struct ethtool_link_ksettings *ks) 1506 { 1507 struct ice_netdev_priv *np = netdev_priv(netdev); 1508 struct ice_vsi *vsi = np->vsi; 1509 struct ice_pf *pf = vsi->back; 1510 u64 advert_phy_type_lo = 0; 1511 u64 advert_phy_type_hi = 0; 1512 u64 phy_type_mask_lo = 0; 1513 u64 phy_type_mask_hi = 0; 1514 u64 phy_types_high = 0; 1515 u64 phy_types_low = 0; 1516 u16 req_speeds; 1517 1518 req_speeds = vsi->port_info->phy.link_info.req_speeds; 1519 1520 /* Check if lenient mode is supported and enabled, or in strict mode. 1521 * 1522 * In lenient mode the Supported link modes are the PHY types without 1523 * media. The Advertising link mode is either 1. the user requested 1524 * speed, 2. the override PHY mask, or 3. the PHY types with media. 1525 * 1526 * In strict mode Supported link mode are the PHY type with media, 1527 * and Advertising link modes are the media PHY type or the speed 1528 * requested by user. 1529 */ 1530 if (test_bit(ICE_FLAG_LINK_LENIENT_MODE_ENA, pf->flags)) { 1531 phy_types_low = le64_to_cpu(pf->nvm_phy_type_lo); 1532 phy_types_high = le64_to_cpu(pf->nvm_phy_type_hi); 1533 1534 ice_mask_min_supported_speeds(phy_types_high, &phy_types_low); 1535 /* determine advertised modes based on link override only 1536 * if it's supported and if the FW doesn't abstract the 1537 * driver from having to account for link overrides 1538 */ 1539 if (ice_fw_supports_link_override(&pf->hw) && 1540 !ice_fw_supports_report_dflt_cfg(&pf->hw)) { 1541 struct ice_link_default_override_tlv *ldo; 1542 1543 ldo = &pf->link_dflt_override; 1544 /* If override enabled and PHY mask set, then 1545 * Advertising link mode is the intersection of the PHY 1546 * types without media and the override PHY mask. 1547 */ 1548 if (ldo->options & ICE_LINK_OVERRIDE_EN && 1549 (ldo->phy_type_low || ldo->phy_type_high)) { 1550 advert_phy_type_lo = 1551 le64_to_cpu(pf->nvm_phy_type_lo) & 1552 ldo->phy_type_low; 1553 advert_phy_type_hi = 1554 le64_to_cpu(pf->nvm_phy_type_hi) & 1555 ldo->phy_type_high; 1556 } 1557 } 1558 } else { 1559 /* strict mode */ 1560 phy_types_low = vsi->port_info->phy.phy_type_low; 1561 phy_types_high = vsi->port_info->phy.phy_type_high; 1562 } 1563 1564 /* If Advertising link mode PHY type is not using override PHY type, 1565 * then use PHY type with media. 1566 */ 1567 if (!advert_phy_type_lo && !advert_phy_type_hi) { 1568 advert_phy_type_lo = vsi->port_info->phy.phy_type_low; 1569 advert_phy_type_hi = vsi->port_info->phy.phy_type_high; 1570 } 1571 1572 ethtool_link_ksettings_zero_link_mode(ks, supported); 1573 ethtool_link_ksettings_zero_link_mode(ks, advertising); 1574 1575 phy_type_mask_lo = ICE_PHY_TYPE_LOW_100BASE_TX | 1576 ICE_PHY_TYPE_LOW_100M_SGMII; 1577 if (phy_types_low & phy_type_mask_lo) { 1578 ethtool_link_ksettings_add_link_mode(ks, supported, 1579 100baseT_Full); 1580 1581 ice_ethtool_advertise_link_mode(ICE_AQ_LINK_SPEED_100MB, 1582 100baseT_Full); 1583 } 1584 1585 phy_type_mask_lo = ICE_PHY_TYPE_LOW_1000BASE_T | 1586 ICE_PHY_TYPE_LOW_1G_SGMII; 1587 if (phy_types_low & phy_type_mask_lo) { 1588 ethtool_link_ksettings_add_link_mode(ks, supported, 1589 1000baseT_Full); 1590 ice_ethtool_advertise_link_mode(ICE_AQ_LINK_SPEED_1000MB, 1591 1000baseT_Full); 1592 } 1593 1594 phy_type_mask_lo = ICE_PHY_TYPE_LOW_1000BASE_KX; 1595 if (phy_types_low & phy_type_mask_lo) { 1596 ethtool_link_ksettings_add_link_mode(ks, supported, 1597 1000baseKX_Full); 1598 ice_ethtool_advertise_link_mode(ICE_AQ_LINK_SPEED_1000MB, 1599 1000baseKX_Full); 1600 } 1601 1602 phy_type_mask_lo = ICE_PHY_TYPE_LOW_1000BASE_SX | 1603 ICE_PHY_TYPE_LOW_1000BASE_LX; 1604 if (phy_types_low & phy_type_mask_lo) { 1605 ethtool_link_ksettings_add_link_mode(ks, supported, 1606 1000baseX_Full); 1607 ice_ethtool_advertise_link_mode(ICE_AQ_LINK_SPEED_1000MB, 1608 1000baseX_Full); 1609 } 1610 1611 phy_type_mask_lo = ICE_PHY_TYPE_LOW_2500BASE_T; 1612 if (phy_types_low & phy_type_mask_lo) { 1613 ethtool_link_ksettings_add_link_mode(ks, supported, 1614 2500baseT_Full); 1615 ice_ethtool_advertise_link_mode(ICE_AQ_LINK_SPEED_2500MB, 1616 2500baseT_Full); 1617 } 1618 1619 phy_type_mask_lo = ICE_PHY_TYPE_LOW_2500BASE_X | 1620 ICE_PHY_TYPE_LOW_2500BASE_KX; 1621 if (phy_types_low & phy_type_mask_lo) { 1622 ethtool_link_ksettings_add_link_mode(ks, supported, 1623 2500baseX_Full); 1624 ice_ethtool_advertise_link_mode(ICE_AQ_LINK_SPEED_2500MB, 1625 2500baseX_Full); 1626 } 1627 1628 phy_type_mask_lo = ICE_PHY_TYPE_LOW_5GBASE_T | 1629 ICE_PHY_TYPE_LOW_5GBASE_KR; 1630 if (phy_types_low & phy_type_mask_lo) { 1631 ethtool_link_ksettings_add_link_mode(ks, supported, 1632 5000baseT_Full); 1633 ice_ethtool_advertise_link_mode(ICE_AQ_LINK_SPEED_5GB, 1634 5000baseT_Full); 1635 } 1636 1637 phy_type_mask_lo = ICE_PHY_TYPE_LOW_10GBASE_T | 1638 ICE_PHY_TYPE_LOW_10G_SFI_DA | 1639 ICE_PHY_TYPE_LOW_10G_SFI_AOC_ACC | 1640 ICE_PHY_TYPE_LOW_10G_SFI_C2C; 1641 if (phy_types_low & phy_type_mask_lo) { 1642 ethtool_link_ksettings_add_link_mode(ks, supported, 1643 10000baseT_Full); 1644 ice_ethtool_advertise_link_mode(ICE_AQ_LINK_SPEED_10GB, 1645 10000baseT_Full); 1646 } 1647 1648 phy_type_mask_lo = ICE_PHY_TYPE_LOW_10GBASE_KR_CR1; 1649 if (phy_types_low & phy_type_mask_lo) { 1650 ethtool_link_ksettings_add_link_mode(ks, supported, 1651 10000baseKR_Full); 1652 ice_ethtool_advertise_link_mode(ICE_AQ_LINK_SPEED_10GB, 1653 10000baseKR_Full); 1654 } 1655 1656 phy_type_mask_lo = ICE_PHY_TYPE_LOW_10GBASE_SR; 1657 if (phy_types_low & phy_type_mask_lo) { 1658 ethtool_link_ksettings_add_link_mode(ks, supported, 1659 10000baseSR_Full); 1660 ice_ethtool_advertise_link_mode(ICE_AQ_LINK_SPEED_10GB, 1661 10000baseSR_Full); 1662 } 1663 1664 phy_type_mask_lo = ICE_PHY_TYPE_LOW_10GBASE_LR; 1665 if (phy_types_low & phy_type_mask_lo) { 1666 ethtool_link_ksettings_add_link_mode(ks, supported, 1667 10000baseLR_Full); 1668 ice_ethtool_advertise_link_mode(ICE_AQ_LINK_SPEED_10GB, 1669 10000baseLR_Full); 1670 } 1671 1672 phy_type_mask_lo = ICE_PHY_TYPE_LOW_25GBASE_T | 1673 ICE_PHY_TYPE_LOW_25GBASE_CR | 1674 ICE_PHY_TYPE_LOW_25GBASE_CR_S | 1675 ICE_PHY_TYPE_LOW_25GBASE_CR1 | 1676 ICE_PHY_TYPE_LOW_25G_AUI_AOC_ACC | 1677 ICE_PHY_TYPE_LOW_25G_AUI_C2C; 1678 if (phy_types_low & phy_type_mask_lo) { 1679 ethtool_link_ksettings_add_link_mode(ks, supported, 1680 25000baseCR_Full); 1681 ice_ethtool_advertise_link_mode(ICE_AQ_LINK_SPEED_25GB, 1682 25000baseCR_Full); 1683 } 1684 1685 phy_type_mask_lo = ICE_PHY_TYPE_LOW_25GBASE_SR | 1686 ICE_PHY_TYPE_LOW_25GBASE_LR; 1687 if (phy_types_low & phy_type_mask_lo) { 1688 ethtool_link_ksettings_add_link_mode(ks, supported, 1689 25000baseSR_Full); 1690 ice_ethtool_advertise_link_mode(ICE_AQ_LINK_SPEED_25GB, 1691 25000baseSR_Full); 1692 } 1693 1694 phy_type_mask_lo = ICE_PHY_TYPE_LOW_25GBASE_KR | 1695 ICE_PHY_TYPE_LOW_25GBASE_KR_S | 1696 ICE_PHY_TYPE_LOW_25GBASE_KR1; 1697 if (phy_types_low & phy_type_mask_lo) { 1698 ethtool_link_ksettings_add_link_mode(ks, supported, 1699 25000baseKR_Full); 1700 ice_ethtool_advertise_link_mode(ICE_AQ_LINK_SPEED_25GB, 1701 25000baseKR_Full); 1702 } 1703 1704 phy_type_mask_lo = ICE_PHY_TYPE_LOW_40GBASE_KR4; 1705 if (phy_types_low & phy_type_mask_lo) { 1706 ethtool_link_ksettings_add_link_mode(ks, supported, 1707 40000baseKR4_Full); 1708 ice_ethtool_advertise_link_mode(ICE_AQ_LINK_SPEED_40GB, 1709 40000baseKR4_Full); 1710 } 1711 1712 phy_type_mask_lo = ICE_PHY_TYPE_LOW_40GBASE_CR4 | 1713 ICE_PHY_TYPE_LOW_40G_XLAUI_AOC_ACC | 1714 ICE_PHY_TYPE_LOW_40G_XLAUI; 1715 if (phy_types_low & phy_type_mask_lo) { 1716 ethtool_link_ksettings_add_link_mode(ks, supported, 1717 40000baseCR4_Full); 1718 ice_ethtool_advertise_link_mode(ICE_AQ_LINK_SPEED_40GB, 1719 40000baseCR4_Full); 1720 } 1721 1722 phy_type_mask_lo = ICE_PHY_TYPE_LOW_40GBASE_SR4; 1723 if (phy_types_low & phy_type_mask_lo) { 1724 ethtool_link_ksettings_add_link_mode(ks, supported, 1725 40000baseSR4_Full); 1726 ice_ethtool_advertise_link_mode(ICE_AQ_LINK_SPEED_40GB, 1727 40000baseSR4_Full); 1728 } 1729 1730 phy_type_mask_lo = ICE_PHY_TYPE_LOW_40GBASE_LR4; 1731 if (phy_types_low & phy_type_mask_lo) { 1732 ethtool_link_ksettings_add_link_mode(ks, supported, 1733 40000baseLR4_Full); 1734 ice_ethtool_advertise_link_mode(ICE_AQ_LINK_SPEED_40GB, 1735 40000baseLR4_Full); 1736 } 1737 1738 phy_type_mask_lo = ICE_PHY_TYPE_LOW_50GBASE_CR2 | 1739 ICE_PHY_TYPE_LOW_50G_LAUI2_AOC_ACC | 1740 ICE_PHY_TYPE_LOW_50G_LAUI2 | 1741 ICE_PHY_TYPE_LOW_50G_AUI2_AOC_ACC | 1742 ICE_PHY_TYPE_LOW_50G_AUI2 | 1743 ICE_PHY_TYPE_LOW_50GBASE_CP | 1744 ICE_PHY_TYPE_LOW_50GBASE_SR | 1745 ICE_PHY_TYPE_LOW_50G_AUI1_AOC_ACC | 1746 ICE_PHY_TYPE_LOW_50G_AUI1; 1747 if (phy_types_low & phy_type_mask_lo) { 1748 ethtool_link_ksettings_add_link_mode(ks, supported, 1749 50000baseCR2_Full); 1750 ice_ethtool_advertise_link_mode(ICE_AQ_LINK_SPEED_50GB, 1751 50000baseCR2_Full); 1752 } 1753 1754 phy_type_mask_lo = ICE_PHY_TYPE_LOW_50GBASE_KR2 | 1755 ICE_PHY_TYPE_LOW_50GBASE_KR_PAM4; 1756 if (phy_types_low & phy_type_mask_lo) { 1757 ethtool_link_ksettings_add_link_mode(ks, supported, 1758 50000baseKR2_Full); 1759 ice_ethtool_advertise_link_mode(ICE_AQ_LINK_SPEED_50GB, 1760 50000baseKR2_Full); 1761 } 1762 1763 phy_type_mask_lo = ICE_PHY_TYPE_LOW_50GBASE_SR2 | 1764 ICE_PHY_TYPE_LOW_50GBASE_LR2 | 1765 ICE_PHY_TYPE_LOW_50GBASE_FR | 1766 ICE_PHY_TYPE_LOW_50GBASE_LR; 1767 if (phy_types_low & phy_type_mask_lo) { 1768 ethtool_link_ksettings_add_link_mode(ks, supported, 1769 50000baseSR2_Full); 1770 ice_ethtool_advertise_link_mode(ICE_AQ_LINK_SPEED_50GB, 1771 50000baseSR2_Full); 1772 } 1773 1774 phy_type_mask_lo = ICE_PHY_TYPE_LOW_100GBASE_CR4 | 1775 ICE_PHY_TYPE_LOW_100G_CAUI4_AOC_ACC | 1776 ICE_PHY_TYPE_LOW_100G_CAUI4 | 1777 ICE_PHY_TYPE_LOW_100G_AUI4_AOC_ACC | 1778 ICE_PHY_TYPE_LOW_100G_AUI4 | 1779 ICE_PHY_TYPE_LOW_100GBASE_CR_PAM4 | 1780 ICE_PHY_TYPE_LOW_100GBASE_CP2; 1781 phy_type_mask_hi = ICE_PHY_TYPE_HIGH_100G_CAUI2_AOC_ACC | 1782 ICE_PHY_TYPE_HIGH_100G_CAUI2 | 1783 ICE_PHY_TYPE_HIGH_100G_AUI2_AOC_ACC | 1784 ICE_PHY_TYPE_HIGH_100G_AUI2; 1785 if (phy_types_low & phy_type_mask_lo || 1786 phy_types_high & phy_type_mask_hi) { 1787 ethtool_link_ksettings_add_link_mode(ks, supported, 1788 100000baseCR4_Full); 1789 ice_ethtool_advertise_link_mode(ICE_AQ_LINK_SPEED_100GB, 1790 100000baseCR4_Full); 1791 } 1792 1793 phy_type_mask_lo = ICE_PHY_TYPE_LOW_100GBASE_SR4 | 1794 ICE_PHY_TYPE_LOW_100GBASE_SR2; 1795 if (phy_types_low & phy_type_mask_lo) { 1796 ethtool_link_ksettings_add_link_mode(ks, supported, 1797 100000baseSR4_Full); 1798 ice_ethtool_advertise_link_mode(ICE_AQ_LINK_SPEED_100GB, 1799 100000baseSR4_Full); 1800 } 1801 1802 phy_type_mask_lo = ICE_PHY_TYPE_LOW_100GBASE_LR4 | 1803 ICE_PHY_TYPE_LOW_100GBASE_DR; 1804 if (phy_types_low & phy_type_mask_lo) { 1805 ethtool_link_ksettings_add_link_mode(ks, supported, 1806 100000baseLR4_ER4_Full); 1807 ice_ethtool_advertise_link_mode(ICE_AQ_LINK_SPEED_100GB, 1808 100000baseLR4_ER4_Full); 1809 } 1810 1811 phy_type_mask_lo = ICE_PHY_TYPE_LOW_100GBASE_KR4 | 1812 ICE_PHY_TYPE_LOW_100GBASE_KR_PAM4; 1813 phy_type_mask_hi = ICE_PHY_TYPE_HIGH_100GBASE_KR2_PAM4; 1814 if (phy_types_low & phy_type_mask_lo || 1815 phy_types_high & phy_type_mask_hi) { 1816 ethtool_link_ksettings_add_link_mode(ks, supported, 1817 100000baseKR4_Full); 1818 ice_ethtool_advertise_link_mode(ICE_AQ_LINK_SPEED_100GB, 1819 100000baseKR4_Full); 1820 } 1821 } 1822 1823 #define TEST_SET_BITS_TIMEOUT 50 1824 #define TEST_SET_BITS_SLEEP_MAX 2000 1825 #define TEST_SET_BITS_SLEEP_MIN 1000 1826 1827 /** 1828 * ice_get_settings_link_up - Get Link settings for when link is up 1829 * @ks: ethtool ksettings to fill in 1830 * @netdev: network interface device structure 1831 */ 1832 static void 1833 ice_get_settings_link_up(struct ethtool_link_ksettings *ks, 1834 struct net_device *netdev) 1835 { 1836 struct ice_netdev_priv *np = netdev_priv(netdev); 1837 struct ice_port_info *pi = np->vsi->port_info; 1838 struct ice_link_status *link_info; 1839 struct ice_vsi *vsi = np->vsi; 1840 1841 link_info = &vsi->port_info->phy.link_info; 1842 1843 /* Get supported and advertised settings from PHY ability with media */ 1844 ice_phy_type_to_ethtool(netdev, ks); 1845 1846 switch (link_info->link_speed) { 1847 case ICE_AQ_LINK_SPEED_100GB: 1848 ks->base.speed = SPEED_100000; 1849 break; 1850 case ICE_AQ_LINK_SPEED_50GB: 1851 ks->base.speed = SPEED_50000; 1852 break; 1853 case ICE_AQ_LINK_SPEED_40GB: 1854 ks->base.speed = SPEED_40000; 1855 break; 1856 case ICE_AQ_LINK_SPEED_25GB: 1857 ks->base.speed = SPEED_25000; 1858 break; 1859 case ICE_AQ_LINK_SPEED_20GB: 1860 ks->base.speed = SPEED_20000; 1861 break; 1862 case ICE_AQ_LINK_SPEED_10GB: 1863 ks->base.speed = SPEED_10000; 1864 break; 1865 case ICE_AQ_LINK_SPEED_5GB: 1866 ks->base.speed = SPEED_5000; 1867 break; 1868 case ICE_AQ_LINK_SPEED_2500MB: 1869 ks->base.speed = SPEED_2500; 1870 break; 1871 case ICE_AQ_LINK_SPEED_1000MB: 1872 ks->base.speed = SPEED_1000; 1873 break; 1874 case ICE_AQ_LINK_SPEED_100MB: 1875 ks->base.speed = SPEED_100; 1876 break; 1877 default: 1878 netdev_info(netdev, "WARNING: Unrecognized link_speed (0x%x).\n", 1879 link_info->link_speed); 1880 break; 1881 } 1882 ks->base.duplex = DUPLEX_FULL; 1883 1884 if (link_info->an_info & ICE_AQ_AN_COMPLETED) 1885 ethtool_link_ksettings_add_link_mode(ks, lp_advertising, 1886 Autoneg); 1887 1888 /* Set flow control negotiated Rx/Tx pause */ 1889 switch (pi->fc.current_mode) { 1890 case ICE_FC_FULL: 1891 ethtool_link_ksettings_add_link_mode(ks, lp_advertising, Pause); 1892 break; 1893 case ICE_FC_TX_PAUSE: 1894 ethtool_link_ksettings_add_link_mode(ks, lp_advertising, Pause); 1895 ethtool_link_ksettings_add_link_mode(ks, lp_advertising, 1896 Asym_Pause); 1897 break; 1898 case ICE_FC_RX_PAUSE: 1899 ethtool_link_ksettings_add_link_mode(ks, lp_advertising, 1900 Asym_Pause); 1901 break; 1902 case ICE_FC_PFC: 1903 default: 1904 ethtool_link_ksettings_del_link_mode(ks, lp_advertising, Pause); 1905 ethtool_link_ksettings_del_link_mode(ks, lp_advertising, 1906 Asym_Pause); 1907 break; 1908 } 1909 } 1910 1911 /** 1912 * ice_get_settings_link_down - Get the Link settings when link is down 1913 * @ks: ethtool ksettings to fill in 1914 * @netdev: network interface device structure 1915 * 1916 * Reports link settings that can be determined when link is down 1917 */ 1918 static void 1919 ice_get_settings_link_down(struct ethtool_link_ksettings *ks, 1920 struct net_device *netdev) 1921 { 1922 /* link is down and the driver needs to fall back on 1923 * supported PHY types to figure out what info to display 1924 */ 1925 ice_phy_type_to_ethtool(netdev, ks); 1926 1927 /* With no link, speed and duplex are unknown */ 1928 ks->base.speed = SPEED_UNKNOWN; 1929 ks->base.duplex = DUPLEX_UNKNOWN; 1930 } 1931 1932 /** 1933 * ice_get_link_ksettings - Get Link Speed and Duplex settings 1934 * @netdev: network interface device structure 1935 * @ks: ethtool ksettings 1936 * 1937 * Reports speed/duplex settings based on media_type 1938 */ 1939 static int 1940 ice_get_link_ksettings(struct net_device *netdev, 1941 struct ethtool_link_ksettings *ks) 1942 { 1943 struct ice_netdev_priv *np = netdev_priv(netdev); 1944 struct ice_aqc_get_phy_caps_data *caps; 1945 struct ice_link_status *hw_link_info; 1946 struct ice_vsi *vsi = np->vsi; 1947 int err; 1948 1949 ethtool_link_ksettings_zero_link_mode(ks, supported); 1950 ethtool_link_ksettings_zero_link_mode(ks, advertising); 1951 ethtool_link_ksettings_zero_link_mode(ks, lp_advertising); 1952 hw_link_info = &vsi->port_info->phy.link_info; 1953 1954 /* set speed and duplex */ 1955 if (hw_link_info->link_info & ICE_AQ_LINK_UP) 1956 ice_get_settings_link_up(ks, netdev); 1957 else 1958 ice_get_settings_link_down(ks, netdev); 1959 1960 /* set autoneg settings */ 1961 ks->base.autoneg = (hw_link_info->an_info & ICE_AQ_AN_COMPLETED) ? 1962 AUTONEG_ENABLE : AUTONEG_DISABLE; 1963 1964 /* set media type settings */ 1965 switch (vsi->port_info->phy.media_type) { 1966 case ICE_MEDIA_FIBER: 1967 ethtool_link_ksettings_add_link_mode(ks, supported, FIBRE); 1968 ks->base.port = PORT_FIBRE; 1969 break; 1970 case ICE_MEDIA_BASET: 1971 ethtool_link_ksettings_add_link_mode(ks, supported, TP); 1972 ethtool_link_ksettings_add_link_mode(ks, advertising, TP); 1973 ks->base.port = PORT_TP; 1974 break; 1975 case ICE_MEDIA_BACKPLANE: 1976 ethtool_link_ksettings_add_link_mode(ks, supported, Backplane); 1977 ethtool_link_ksettings_add_link_mode(ks, advertising, 1978 Backplane); 1979 ks->base.port = PORT_NONE; 1980 break; 1981 case ICE_MEDIA_DA: 1982 ethtool_link_ksettings_add_link_mode(ks, supported, FIBRE); 1983 ethtool_link_ksettings_add_link_mode(ks, advertising, FIBRE); 1984 ks->base.port = PORT_DA; 1985 break; 1986 default: 1987 ks->base.port = PORT_OTHER; 1988 break; 1989 } 1990 1991 /* flow control is symmetric and always supported */ 1992 ethtool_link_ksettings_add_link_mode(ks, supported, Pause); 1993 1994 caps = kzalloc(sizeof(*caps), GFP_KERNEL); 1995 if (!caps) 1996 return -ENOMEM; 1997 1998 err = ice_aq_get_phy_caps(vsi->port_info, false, 1999 ICE_AQC_REPORT_ACTIVE_CFG, caps, NULL); 2000 if (err) 2001 goto done; 2002 2003 /* Set the advertised flow control based on the PHY capability */ 2004 if ((caps->caps & ICE_AQC_PHY_EN_TX_LINK_PAUSE) && 2005 (caps->caps & ICE_AQC_PHY_EN_RX_LINK_PAUSE)) { 2006 ethtool_link_ksettings_add_link_mode(ks, advertising, Pause); 2007 ethtool_link_ksettings_add_link_mode(ks, advertising, 2008 Asym_Pause); 2009 } else if (caps->caps & ICE_AQC_PHY_EN_TX_LINK_PAUSE) { 2010 ethtool_link_ksettings_add_link_mode(ks, advertising, 2011 Asym_Pause); 2012 } else if (caps->caps & ICE_AQC_PHY_EN_RX_LINK_PAUSE) { 2013 ethtool_link_ksettings_add_link_mode(ks, advertising, Pause); 2014 ethtool_link_ksettings_add_link_mode(ks, advertising, 2015 Asym_Pause); 2016 } else { 2017 ethtool_link_ksettings_del_link_mode(ks, advertising, Pause); 2018 ethtool_link_ksettings_del_link_mode(ks, advertising, 2019 Asym_Pause); 2020 } 2021 2022 /* Set advertised FEC modes based on PHY capability */ 2023 ethtool_link_ksettings_add_link_mode(ks, advertising, FEC_NONE); 2024 2025 if (caps->link_fec_options & ICE_AQC_PHY_FEC_10G_KR_40G_KR4_REQ || 2026 caps->link_fec_options & ICE_AQC_PHY_FEC_25G_KR_REQ) 2027 ethtool_link_ksettings_add_link_mode(ks, advertising, 2028 FEC_BASER); 2029 if (caps->link_fec_options & ICE_AQC_PHY_FEC_25G_RS_528_REQ || 2030 caps->link_fec_options & ICE_AQC_PHY_FEC_25G_RS_544_REQ) 2031 ethtool_link_ksettings_add_link_mode(ks, advertising, FEC_RS); 2032 2033 err = ice_aq_get_phy_caps(vsi->port_info, false, 2034 ICE_AQC_REPORT_TOPO_CAP_MEDIA, caps, NULL); 2035 if (err) 2036 goto done; 2037 2038 /* Set supported FEC modes based on PHY capability */ 2039 ethtool_link_ksettings_add_link_mode(ks, supported, FEC_NONE); 2040 2041 if (caps->link_fec_options & ICE_AQC_PHY_FEC_10G_KR_40G_KR4_EN || 2042 caps->link_fec_options & ICE_AQC_PHY_FEC_25G_KR_CLAUSE74_EN) 2043 ethtool_link_ksettings_add_link_mode(ks, supported, FEC_BASER); 2044 if (caps->link_fec_options & ICE_AQC_PHY_FEC_25G_RS_CLAUSE91_EN) 2045 ethtool_link_ksettings_add_link_mode(ks, supported, FEC_RS); 2046 2047 /* Set supported and advertised autoneg */ 2048 if (ice_is_phy_caps_an_enabled(caps)) { 2049 ethtool_link_ksettings_add_link_mode(ks, supported, Autoneg); 2050 ethtool_link_ksettings_add_link_mode(ks, advertising, Autoneg); 2051 } 2052 2053 done: 2054 kfree(caps); 2055 return err; 2056 } 2057 2058 /** 2059 * ice_ksettings_find_adv_link_speed - Find advertising link speed 2060 * @ks: ethtool ksettings 2061 */ 2062 static u16 2063 ice_ksettings_find_adv_link_speed(const struct ethtool_link_ksettings *ks) 2064 { 2065 u16 adv_link_speed = 0; 2066 2067 if (ethtool_link_ksettings_test_link_mode(ks, advertising, 2068 100baseT_Full)) 2069 adv_link_speed |= ICE_AQ_LINK_SPEED_100MB; 2070 if (ethtool_link_ksettings_test_link_mode(ks, advertising, 2071 1000baseX_Full)) 2072 adv_link_speed |= ICE_AQ_LINK_SPEED_1000MB; 2073 if (ethtool_link_ksettings_test_link_mode(ks, advertising, 2074 1000baseT_Full) || 2075 ethtool_link_ksettings_test_link_mode(ks, advertising, 2076 1000baseKX_Full)) 2077 adv_link_speed |= ICE_AQ_LINK_SPEED_1000MB; 2078 if (ethtool_link_ksettings_test_link_mode(ks, advertising, 2079 2500baseT_Full)) 2080 adv_link_speed |= ICE_AQ_LINK_SPEED_2500MB; 2081 if (ethtool_link_ksettings_test_link_mode(ks, advertising, 2082 2500baseX_Full)) 2083 adv_link_speed |= ICE_AQ_LINK_SPEED_2500MB; 2084 if (ethtool_link_ksettings_test_link_mode(ks, advertising, 2085 5000baseT_Full)) 2086 adv_link_speed |= ICE_AQ_LINK_SPEED_5GB; 2087 if (ethtool_link_ksettings_test_link_mode(ks, advertising, 2088 10000baseT_Full) || 2089 ethtool_link_ksettings_test_link_mode(ks, advertising, 2090 10000baseKR_Full)) 2091 adv_link_speed |= ICE_AQ_LINK_SPEED_10GB; 2092 if (ethtool_link_ksettings_test_link_mode(ks, advertising, 2093 10000baseSR_Full) || 2094 ethtool_link_ksettings_test_link_mode(ks, advertising, 2095 10000baseLR_Full)) 2096 adv_link_speed |= ICE_AQ_LINK_SPEED_10GB; 2097 if (ethtool_link_ksettings_test_link_mode(ks, advertising, 2098 25000baseCR_Full) || 2099 ethtool_link_ksettings_test_link_mode(ks, advertising, 2100 25000baseSR_Full) || 2101 ethtool_link_ksettings_test_link_mode(ks, advertising, 2102 25000baseKR_Full)) 2103 adv_link_speed |= ICE_AQ_LINK_SPEED_25GB; 2104 if (ethtool_link_ksettings_test_link_mode(ks, advertising, 2105 40000baseCR4_Full) || 2106 ethtool_link_ksettings_test_link_mode(ks, advertising, 2107 40000baseSR4_Full) || 2108 ethtool_link_ksettings_test_link_mode(ks, advertising, 2109 40000baseLR4_Full) || 2110 ethtool_link_ksettings_test_link_mode(ks, advertising, 2111 40000baseKR4_Full)) 2112 adv_link_speed |= ICE_AQ_LINK_SPEED_40GB; 2113 if (ethtool_link_ksettings_test_link_mode(ks, advertising, 2114 50000baseCR2_Full) || 2115 ethtool_link_ksettings_test_link_mode(ks, advertising, 2116 50000baseKR2_Full)) 2117 adv_link_speed |= ICE_AQ_LINK_SPEED_50GB; 2118 if (ethtool_link_ksettings_test_link_mode(ks, advertising, 2119 50000baseSR2_Full)) 2120 adv_link_speed |= ICE_AQ_LINK_SPEED_50GB; 2121 if (ethtool_link_ksettings_test_link_mode(ks, advertising, 2122 100000baseCR4_Full) || 2123 ethtool_link_ksettings_test_link_mode(ks, advertising, 2124 100000baseSR4_Full) || 2125 ethtool_link_ksettings_test_link_mode(ks, advertising, 2126 100000baseLR4_ER4_Full) || 2127 ethtool_link_ksettings_test_link_mode(ks, advertising, 2128 100000baseKR4_Full)) 2129 adv_link_speed |= ICE_AQ_LINK_SPEED_100GB; 2130 2131 return adv_link_speed; 2132 } 2133 2134 /** 2135 * ice_setup_autoneg 2136 * @p: port info 2137 * @ks: ethtool_link_ksettings 2138 * @config: configuration that will be sent down to FW 2139 * @autoneg_enabled: autonegotiation is enabled or not 2140 * @autoneg_changed: will there a change in autonegotiation 2141 * @netdev: network interface device structure 2142 * 2143 * Setup PHY autonegotiation feature 2144 */ 2145 static int 2146 ice_setup_autoneg(struct ice_port_info *p, struct ethtool_link_ksettings *ks, 2147 struct ice_aqc_set_phy_cfg_data *config, 2148 u8 autoneg_enabled, u8 *autoneg_changed, 2149 struct net_device *netdev) 2150 { 2151 int err = 0; 2152 2153 *autoneg_changed = 0; 2154 2155 /* Check autoneg */ 2156 if (autoneg_enabled == AUTONEG_ENABLE) { 2157 /* If autoneg was not already enabled */ 2158 if (!(p->phy.link_info.an_info & ICE_AQ_AN_COMPLETED)) { 2159 /* If autoneg is not supported, return error */ 2160 if (!ethtool_link_ksettings_test_link_mode(ks, 2161 supported, 2162 Autoneg)) { 2163 netdev_info(netdev, "Autoneg not supported on this phy.\n"); 2164 err = -EINVAL; 2165 } else { 2166 /* Autoneg is allowed to change */ 2167 config->caps |= ICE_AQ_PHY_ENA_AUTO_LINK_UPDT; 2168 *autoneg_changed = 1; 2169 } 2170 } 2171 } else { 2172 /* If autoneg is currently enabled */ 2173 if (p->phy.link_info.an_info & ICE_AQ_AN_COMPLETED) { 2174 /* If autoneg is supported 10GBASE_T is the only PHY 2175 * that can disable it, so otherwise return error 2176 */ 2177 if (ethtool_link_ksettings_test_link_mode(ks, 2178 supported, 2179 Autoneg)) { 2180 netdev_info(netdev, "Autoneg cannot be disabled on this phy\n"); 2181 err = -EINVAL; 2182 } else { 2183 /* Autoneg is allowed to change */ 2184 config->caps &= ~ICE_AQ_PHY_ENA_AUTO_LINK_UPDT; 2185 *autoneg_changed = 1; 2186 } 2187 } 2188 } 2189 2190 return err; 2191 } 2192 2193 /** 2194 * ice_set_phy_type_from_speed - set phy_types based on speeds 2195 * and advertised modes 2196 * @ks: ethtool link ksettings struct 2197 * @phy_type_low: pointer to the lower part of phy_type 2198 * @phy_type_high: pointer to the higher part of phy_type 2199 * @adv_link_speed: targeted link speeds bitmap 2200 */ 2201 static void 2202 ice_set_phy_type_from_speed(const struct ethtool_link_ksettings *ks, 2203 u64 *phy_type_low, u64 *phy_type_high, 2204 u16 adv_link_speed) 2205 { 2206 /* Handle 1000M speed in a special way because ice_update_phy_type 2207 * enables all link modes, but having mixed copper and optical 2208 * standards is not supported. 2209 */ 2210 adv_link_speed &= ~ICE_AQ_LINK_SPEED_1000MB; 2211 2212 if (ethtool_link_ksettings_test_link_mode(ks, advertising, 2213 1000baseT_Full)) 2214 *phy_type_low |= ICE_PHY_TYPE_LOW_1000BASE_T | 2215 ICE_PHY_TYPE_LOW_1G_SGMII; 2216 2217 if (ethtool_link_ksettings_test_link_mode(ks, advertising, 2218 1000baseKX_Full)) 2219 *phy_type_low |= ICE_PHY_TYPE_LOW_1000BASE_KX; 2220 2221 if (ethtool_link_ksettings_test_link_mode(ks, advertising, 2222 1000baseX_Full)) 2223 *phy_type_low |= ICE_PHY_TYPE_LOW_1000BASE_SX | 2224 ICE_PHY_TYPE_LOW_1000BASE_LX; 2225 2226 ice_update_phy_type(phy_type_low, phy_type_high, adv_link_speed); 2227 } 2228 2229 /** 2230 * ice_set_link_ksettings - Set Speed and Duplex 2231 * @netdev: network interface device structure 2232 * @ks: ethtool ksettings 2233 * 2234 * Set speed/duplex per media_types advertised/forced 2235 */ 2236 static int 2237 ice_set_link_ksettings(struct net_device *netdev, 2238 const struct ethtool_link_ksettings *ks) 2239 { 2240 struct ice_netdev_priv *np = netdev_priv(netdev); 2241 u8 autoneg, timeout = TEST_SET_BITS_TIMEOUT; 2242 struct ethtool_link_ksettings copy_ks = *ks; 2243 struct ethtool_link_ksettings safe_ks = {}; 2244 struct ice_aqc_get_phy_caps_data *phy_caps; 2245 struct ice_aqc_set_phy_cfg_data config; 2246 u16 adv_link_speed, curr_link_speed; 2247 struct ice_pf *pf = np->vsi->back; 2248 struct ice_port_info *pi; 2249 u8 autoneg_changed = 0; 2250 u64 phy_type_high = 0; 2251 u64 phy_type_low = 0; 2252 bool linkup; 2253 int err; 2254 2255 pi = np->vsi->port_info; 2256 2257 if (!pi) 2258 return -EIO; 2259 2260 if (pi->phy.media_type != ICE_MEDIA_BASET && 2261 pi->phy.media_type != ICE_MEDIA_FIBER && 2262 pi->phy.media_type != ICE_MEDIA_BACKPLANE && 2263 pi->phy.media_type != ICE_MEDIA_DA && 2264 pi->phy.link_info.link_info & ICE_AQ_LINK_UP) 2265 return -EOPNOTSUPP; 2266 2267 phy_caps = kzalloc(sizeof(*phy_caps), GFP_KERNEL); 2268 if (!phy_caps) 2269 return -ENOMEM; 2270 2271 /* Get the PHY capabilities based on media */ 2272 if (ice_fw_supports_report_dflt_cfg(pi->hw)) 2273 err = ice_aq_get_phy_caps(pi, false, ICE_AQC_REPORT_DFLT_CFG, 2274 phy_caps, NULL); 2275 else 2276 err = ice_aq_get_phy_caps(pi, false, ICE_AQC_REPORT_TOPO_CAP_MEDIA, 2277 phy_caps, NULL); 2278 if (err) 2279 goto done; 2280 2281 /* save autoneg out of ksettings */ 2282 autoneg = copy_ks.base.autoneg; 2283 2284 /* Get link modes supported by hardware.*/ 2285 ice_phy_type_to_ethtool(netdev, &safe_ks); 2286 2287 /* and check against modes requested by user. 2288 * Return an error if unsupported mode was set. 2289 */ 2290 if (!bitmap_subset(copy_ks.link_modes.advertising, 2291 safe_ks.link_modes.supported, 2292 __ETHTOOL_LINK_MODE_MASK_NBITS)) { 2293 if (!test_bit(ICE_FLAG_LINK_LENIENT_MODE_ENA, pf->flags)) 2294 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"); 2295 err = -EOPNOTSUPP; 2296 goto done; 2297 } 2298 2299 /* get our own copy of the bits to check against */ 2300 memset(&safe_ks, 0, sizeof(safe_ks)); 2301 safe_ks.base.cmd = copy_ks.base.cmd; 2302 safe_ks.base.link_mode_masks_nwords = 2303 copy_ks.base.link_mode_masks_nwords; 2304 ice_get_link_ksettings(netdev, &safe_ks); 2305 2306 /* set autoneg back to what it currently is */ 2307 copy_ks.base.autoneg = safe_ks.base.autoneg; 2308 /* we don't compare the speed */ 2309 copy_ks.base.speed = safe_ks.base.speed; 2310 2311 /* If copy_ks.base and safe_ks.base are not the same now, then they are 2312 * trying to set something that we do not support. 2313 */ 2314 if (memcmp(©_ks.base, &safe_ks.base, sizeof(copy_ks.base))) { 2315 err = -EOPNOTSUPP; 2316 goto done; 2317 } 2318 2319 while (test_and_set_bit(ICE_CFG_BUSY, pf->state)) { 2320 timeout--; 2321 if (!timeout) { 2322 err = -EBUSY; 2323 goto done; 2324 } 2325 usleep_range(TEST_SET_BITS_SLEEP_MIN, TEST_SET_BITS_SLEEP_MAX); 2326 } 2327 2328 /* Copy the current user PHY configuration. The current user PHY 2329 * configuration is initialized during probe from PHY capabilities 2330 * software mode, and updated on set PHY configuration. 2331 */ 2332 config = pi->phy.curr_user_phy_cfg; 2333 2334 config.caps |= ICE_AQ_PHY_ENA_AUTO_LINK_UPDT; 2335 2336 /* Check autoneg */ 2337 err = ice_setup_autoneg(pi, &safe_ks, &config, autoneg, &autoneg_changed, 2338 netdev); 2339 2340 if (err) 2341 goto done; 2342 2343 /* Call to get the current link speed */ 2344 pi->phy.get_link_info = true; 2345 err = ice_get_link_status(pi, &linkup); 2346 if (err) 2347 goto done; 2348 2349 curr_link_speed = pi->phy.curr_user_speed_req; 2350 adv_link_speed = ice_ksettings_find_adv_link_speed(ks); 2351 2352 /* If speed didn't get set, set it to what it currently is. 2353 * This is needed because if advertise is 0 (as it is when autoneg 2354 * is disabled) then speed won't get set. 2355 */ 2356 if (!adv_link_speed) 2357 adv_link_speed = curr_link_speed; 2358 2359 /* Convert the advertise link speeds to their corresponded PHY_TYPE */ 2360 ice_set_phy_type_from_speed(ks, &phy_type_low, &phy_type_high, 2361 adv_link_speed); 2362 2363 if (!autoneg_changed && adv_link_speed == curr_link_speed) { 2364 netdev_info(netdev, "Nothing changed, exiting without setting anything.\n"); 2365 goto done; 2366 } 2367 2368 /* save the requested speeds */ 2369 pi->phy.link_info.req_speeds = adv_link_speed; 2370 2371 /* set link and auto negotiation so changes take effect */ 2372 config.caps |= ICE_AQ_PHY_ENA_LINK; 2373 2374 /* check if there is a PHY type for the requested advertised speed */ 2375 if (!(phy_type_low || phy_type_high)) { 2376 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"); 2377 err = -EOPNOTSUPP; 2378 goto done; 2379 } 2380 2381 /* intersect requested advertised speed PHY types with media PHY types 2382 * for set PHY configuration 2383 */ 2384 config.phy_type_high = cpu_to_le64(phy_type_high) & 2385 phy_caps->phy_type_high; 2386 config.phy_type_low = cpu_to_le64(phy_type_low) & 2387 phy_caps->phy_type_low; 2388 2389 if (!(config.phy_type_high || config.phy_type_low)) { 2390 /* If there is no intersection and lenient mode is enabled, then 2391 * intersect the requested advertised speed with NVM media type 2392 * PHY types. 2393 */ 2394 if (test_bit(ICE_FLAG_LINK_LENIENT_MODE_ENA, pf->flags)) { 2395 config.phy_type_high = cpu_to_le64(phy_type_high) & 2396 pf->nvm_phy_type_hi; 2397 config.phy_type_low = cpu_to_le64(phy_type_low) & 2398 pf->nvm_phy_type_lo; 2399 } else { 2400 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"); 2401 err = -EOPNOTSUPP; 2402 goto done; 2403 } 2404 } 2405 2406 /* If link is up put link down */ 2407 if (pi->phy.link_info.link_info & ICE_AQ_LINK_UP) { 2408 /* Tell the OS link is going down, the link will go 2409 * back up when fw says it is ready asynchronously 2410 */ 2411 ice_print_link_msg(np->vsi, false); 2412 netif_carrier_off(netdev); 2413 netif_tx_stop_all_queues(netdev); 2414 } 2415 2416 /* make the aq call */ 2417 err = ice_aq_set_phy_cfg(&pf->hw, pi, &config, NULL); 2418 if (err) { 2419 netdev_info(netdev, "Set phy config failed,\n"); 2420 goto done; 2421 } 2422 2423 /* Save speed request */ 2424 pi->phy.curr_user_speed_req = adv_link_speed; 2425 done: 2426 kfree(phy_caps); 2427 clear_bit(ICE_CFG_BUSY, pf->state); 2428 2429 return err; 2430 } 2431 2432 /** 2433 * ice_parse_hdrs - parses headers from RSS hash input 2434 * @nfc: ethtool rxnfc command 2435 * 2436 * This function parses the rxnfc command and returns intended 2437 * header types for RSS configuration 2438 */ 2439 static u32 ice_parse_hdrs(struct ethtool_rxnfc *nfc) 2440 { 2441 u32 hdrs = ICE_FLOW_SEG_HDR_NONE; 2442 2443 switch (nfc->flow_type) { 2444 case TCP_V4_FLOW: 2445 hdrs |= ICE_FLOW_SEG_HDR_TCP | ICE_FLOW_SEG_HDR_IPV4; 2446 break; 2447 case UDP_V4_FLOW: 2448 hdrs |= ICE_FLOW_SEG_HDR_UDP | ICE_FLOW_SEG_HDR_IPV4; 2449 break; 2450 case SCTP_V4_FLOW: 2451 hdrs |= ICE_FLOW_SEG_HDR_SCTP | ICE_FLOW_SEG_HDR_IPV4; 2452 break; 2453 case TCP_V6_FLOW: 2454 hdrs |= ICE_FLOW_SEG_HDR_TCP | ICE_FLOW_SEG_HDR_IPV6; 2455 break; 2456 case UDP_V6_FLOW: 2457 hdrs |= ICE_FLOW_SEG_HDR_UDP | ICE_FLOW_SEG_HDR_IPV6; 2458 break; 2459 case SCTP_V6_FLOW: 2460 hdrs |= ICE_FLOW_SEG_HDR_SCTP | ICE_FLOW_SEG_HDR_IPV6; 2461 break; 2462 default: 2463 break; 2464 } 2465 return hdrs; 2466 } 2467 2468 #define ICE_FLOW_HASH_FLD_IPV4_SA BIT_ULL(ICE_FLOW_FIELD_IDX_IPV4_SA) 2469 #define ICE_FLOW_HASH_FLD_IPV6_SA BIT_ULL(ICE_FLOW_FIELD_IDX_IPV6_SA) 2470 #define ICE_FLOW_HASH_FLD_IPV4_DA BIT_ULL(ICE_FLOW_FIELD_IDX_IPV4_DA) 2471 #define ICE_FLOW_HASH_FLD_IPV6_DA BIT_ULL(ICE_FLOW_FIELD_IDX_IPV6_DA) 2472 #define ICE_FLOW_HASH_FLD_TCP_SRC_PORT BIT_ULL(ICE_FLOW_FIELD_IDX_TCP_SRC_PORT) 2473 #define ICE_FLOW_HASH_FLD_TCP_DST_PORT BIT_ULL(ICE_FLOW_FIELD_IDX_TCP_DST_PORT) 2474 #define ICE_FLOW_HASH_FLD_UDP_SRC_PORT BIT_ULL(ICE_FLOW_FIELD_IDX_UDP_SRC_PORT) 2475 #define ICE_FLOW_HASH_FLD_UDP_DST_PORT BIT_ULL(ICE_FLOW_FIELD_IDX_UDP_DST_PORT) 2476 #define ICE_FLOW_HASH_FLD_SCTP_SRC_PORT \ 2477 BIT_ULL(ICE_FLOW_FIELD_IDX_SCTP_SRC_PORT) 2478 #define ICE_FLOW_HASH_FLD_SCTP_DST_PORT \ 2479 BIT_ULL(ICE_FLOW_FIELD_IDX_SCTP_DST_PORT) 2480 2481 /** 2482 * ice_parse_hash_flds - parses hash fields from RSS hash input 2483 * @nfc: ethtool rxnfc command 2484 * 2485 * This function parses the rxnfc command and returns intended 2486 * hash fields for RSS configuration 2487 */ 2488 static u64 ice_parse_hash_flds(struct ethtool_rxnfc *nfc) 2489 { 2490 u64 hfld = ICE_HASH_INVALID; 2491 2492 if (nfc->data & RXH_IP_SRC || nfc->data & RXH_IP_DST) { 2493 switch (nfc->flow_type) { 2494 case TCP_V4_FLOW: 2495 case UDP_V4_FLOW: 2496 case SCTP_V4_FLOW: 2497 if (nfc->data & RXH_IP_SRC) 2498 hfld |= ICE_FLOW_HASH_FLD_IPV4_SA; 2499 if (nfc->data & RXH_IP_DST) 2500 hfld |= ICE_FLOW_HASH_FLD_IPV4_DA; 2501 break; 2502 case TCP_V6_FLOW: 2503 case UDP_V6_FLOW: 2504 case SCTP_V6_FLOW: 2505 if (nfc->data & RXH_IP_SRC) 2506 hfld |= ICE_FLOW_HASH_FLD_IPV6_SA; 2507 if (nfc->data & RXH_IP_DST) 2508 hfld |= ICE_FLOW_HASH_FLD_IPV6_DA; 2509 break; 2510 default: 2511 break; 2512 } 2513 } 2514 2515 if (nfc->data & RXH_L4_B_0_1 || nfc->data & RXH_L4_B_2_3) { 2516 switch (nfc->flow_type) { 2517 case TCP_V4_FLOW: 2518 case TCP_V6_FLOW: 2519 if (nfc->data & RXH_L4_B_0_1) 2520 hfld |= ICE_FLOW_HASH_FLD_TCP_SRC_PORT; 2521 if (nfc->data & RXH_L4_B_2_3) 2522 hfld |= ICE_FLOW_HASH_FLD_TCP_DST_PORT; 2523 break; 2524 case UDP_V4_FLOW: 2525 case UDP_V6_FLOW: 2526 if (nfc->data & RXH_L4_B_0_1) 2527 hfld |= ICE_FLOW_HASH_FLD_UDP_SRC_PORT; 2528 if (nfc->data & RXH_L4_B_2_3) 2529 hfld |= ICE_FLOW_HASH_FLD_UDP_DST_PORT; 2530 break; 2531 case SCTP_V4_FLOW: 2532 case SCTP_V6_FLOW: 2533 if (nfc->data & RXH_L4_B_0_1) 2534 hfld |= ICE_FLOW_HASH_FLD_SCTP_SRC_PORT; 2535 if (nfc->data & RXH_L4_B_2_3) 2536 hfld |= ICE_FLOW_HASH_FLD_SCTP_DST_PORT; 2537 break; 2538 default: 2539 break; 2540 } 2541 } 2542 2543 return hfld; 2544 } 2545 2546 /** 2547 * ice_set_rss_hash_opt - Enable/Disable flow types for RSS hash 2548 * @vsi: the VSI being configured 2549 * @nfc: ethtool rxnfc command 2550 * 2551 * Returns Success if the flow input set is supported. 2552 */ 2553 static int 2554 ice_set_rss_hash_opt(struct ice_vsi *vsi, struct ethtool_rxnfc *nfc) 2555 { 2556 struct ice_pf *pf = vsi->back; 2557 struct device *dev; 2558 u64 hashed_flds; 2559 int status; 2560 u32 hdrs; 2561 2562 dev = ice_pf_to_dev(pf); 2563 if (ice_is_safe_mode(pf)) { 2564 dev_dbg(dev, "Advanced RSS disabled. Package download failed, vsi num = %d\n", 2565 vsi->vsi_num); 2566 return -EINVAL; 2567 } 2568 2569 hashed_flds = ice_parse_hash_flds(nfc); 2570 if (hashed_flds == ICE_HASH_INVALID) { 2571 dev_dbg(dev, "Invalid hash fields, vsi num = %d\n", 2572 vsi->vsi_num); 2573 return -EINVAL; 2574 } 2575 2576 hdrs = ice_parse_hdrs(nfc); 2577 if (hdrs == ICE_FLOW_SEG_HDR_NONE) { 2578 dev_dbg(dev, "Header type is not valid, vsi num = %d\n", 2579 vsi->vsi_num); 2580 return -EINVAL; 2581 } 2582 2583 status = ice_add_rss_cfg(&pf->hw, vsi->idx, hashed_flds, hdrs); 2584 if (status) { 2585 dev_dbg(dev, "ice_add_rss_cfg failed, vsi num = %d, error = %d\n", 2586 vsi->vsi_num, status); 2587 return status; 2588 } 2589 2590 return 0; 2591 } 2592 2593 /** 2594 * ice_get_rss_hash_opt - Retrieve hash fields for a given flow-type 2595 * @vsi: the VSI being configured 2596 * @nfc: ethtool rxnfc command 2597 */ 2598 static void 2599 ice_get_rss_hash_opt(struct ice_vsi *vsi, struct ethtool_rxnfc *nfc) 2600 { 2601 struct ice_pf *pf = vsi->back; 2602 struct device *dev; 2603 u64 hash_flds; 2604 u32 hdrs; 2605 2606 dev = ice_pf_to_dev(pf); 2607 2608 nfc->data = 0; 2609 if (ice_is_safe_mode(pf)) { 2610 dev_dbg(dev, "Advanced RSS disabled. Package download failed, vsi num = %d\n", 2611 vsi->vsi_num); 2612 return; 2613 } 2614 2615 hdrs = ice_parse_hdrs(nfc); 2616 if (hdrs == ICE_FLOW_SEG_HDR_NONE) { 2617 dev_dbg(dev, "Header type is not valid, vsi num = %d\n", 2618 vsi->vsi_num); 2619 return; 2620 } 2621 2622 hash_flds = ice_get_rss_cfg(&pf->hw, vsi->idx, hdrs); 2623 if (hash_flds == ICE_HASH_INVALID) { 2624 dev_dbg(dev, "No hash fields found for the given header type, vsi num = %d\n", 2625 vsi->vsi_num); 2626 return; 2627 } 2628 2629 if (hash_flds & ICE_FLOW_HASH_FLD_IPV4_SA || 2630 hash_flds & ICE_FLOW_HASH_FLD_IPV6_SA) 2631 nfc->data |= (u64)RXH_IP_SRC; 2632 2633 if (hash_flds & ICE_FLOW_HASH_FLD_IPV4_DA || 2634 hash_flds & ICE_FLOW_HASH_FLD_IPV6_DA) 2635 nfc->data |= (u64)RXH_IP_DST; 2636 2637 if (hash_flds & ICE_FLOW_HASH_FLD_TCP_SRC_PORT || 2638 hash_flds & ICE_FLOW_HASH_FLD_UDP_SRC_PORT || 2639 hash_flds & ICE_FLOW_HASH_FLD_SCTP_SRC_PORT) 2640 nfc->data |= (u64)RXH_L4_B_0_1; 2641 2642 if (hash_flds & ICE_FLOW_HASH_FLD_TCP_DST_PORT || 2643 hash_flds & ICE_FLOW_HASH_FLD_UDP_DST_PORT || 2644 hash_flds & ICE_FLOW_HASH_FLD_SCTP_DST_PORT) 2645 nfc->data |= (u64)RXH_L4_B_2_3; 2646 } 2647 2648 /** 2649 * ice_set_rxnfc - command to set Rx flow rules. 2650 * @netdev: network interface device structure 2651 * @cmd: ethtool rxnfc command 2652 * 2653 * Returns 0 for success and negative values for errors 2654 */ 2655 static int ice_set_rxnfc(struct net_device *netdev, struct ethtool_rxnfc *cmd) 2656 { 2657 struct ice_netdev_priv *np = netdev_priv(netdev); 2658 struct ice_vsi *vsi = np->vsi; 2659 2660 switch (cmd->cmd) { 2661 case ETHTOOL_SRXCLSRLINS: 2662 return ice_add_fdir_ethtool(vsi, cmd); 2663 case ETHTOOL_SRXCLSRLDEL: 2664 return ice_del_fdir_ethtool(vsi, cmd); 2665 case ETHTOOL_SRXFH: 2666 return ice_set_rss_hash_opt(vsi, cmd); 2667 default: 2668 break; 2669 } 2670 return -EOPNOTSUPP; 2671 } 2672 2673 /** 2674 * ice_get_rxnfc - command to get Rx flow classification rules 2675 * @netdev: network interface device structure 2676 * @cmd: ethtool rxnfc command 2677 * @rule_locs: buffer to rturn Rx flow classification rules 2678 * 2679 * Returns Success if the command is supported. 2680 */ 2681 static int 2682 ice_get_rxnfc(struct net_device *netdev, struct ethtool_rxnfc *cmd, 2683 u32 __always_unused *rule_locs) 2684 { 2685 struct ice_netdev_priv *np = netdev_priv(netdev); 2686 struct ice_vsi *vsi = np->vsi; 2687 int ret = -EOPNOTSUPP; 2688 struct ice_hw *hw; 2689 2690 hw = &vsi->back->hw; 2691 2692 switch (cmd->cmd) { 2693 case ETHTOOL_GRXRINGS: 2694 cmd->data = vsi->rss_size; 2695 ret = 0; 2696 break; 2697 case ETHTOOL_GRXCLSRLCNT: 2698 cmd->rule_cnt = hw->fdir_active_fltr; 2699 /* report total rule count */ 2700 cmd->data = ice_get_fdir_cnt_all(hw); 2701 ret = 0; 2702 break; 2703 case ETHTOOL_GRXCLSRULE: 2704 ret = ice_get_ethtool_fdir_entry(hw, cmd); 2705 break; 2706 case ETHTOOL_GRXCLSRLALL: 2707 ret = ice_get_fdir_fltr_ids(hw, cmd, (u32 *)rule_locs); 2708 break; 2709 case ETHTOOL_GRXFH: 2710 ice_get_rss_hash_opt(vsi, cmd); 2711 ret = 0; 2712 break; 2713 default: 2714 break; 2715 } 2716 2717 return ret; 2718 } 2719 2720 static void 2721 ice_get_ringparam(struct net_device *netdev, struct ethtool_ringparam *ring, 2722 struct kernel_ethtool_ringparam *kernel_ring, 2723 struct netlink_ext_ack *extack) 2724 { 2725 struct ice_netdev_priv *np = netdev_priv(netdev); 2726 struct ice_vsi *vsi = np->vsi; 2727 2728 ring->rx_max_pending = ICE_MAX_NUM_DESC; 2729 ring->tx_max_pending = ICE_MAX_NUM_DESC; 2730 ring->rx_pending = vsi->rx_rings[0]->count; 2731 ring->tx_pending = vsi->tx_rings[0]->count; 2732 2733 /* Rx mini and jumbo rings are not supported */ 2734 ring->rx_mini_max_pending = 0; 2735 ring->rx_jumbo_max_pending = 0; 2736 ring->rx_mini_pending = 0; 2737 ring->rx_jumbo_pending = 0; 2738 } 2739 2740 static int 2741 ice_set_ringparam(struct net_device *netdev, struct ethtool_ringparam *ring, 2742 struct kernel_ethtool_ringparam *kernel_ring, 2743 struct netlink_ext_ack *extack) 2744 { 2745 struct ice_netdev_priv *np = netdev_priv(netdev); 2746 struct ice_tx_ring *xdp_rings = NULL; 2747 struct ice_tx_ring *tx_rings = NULL; 2748 struct ice_rx_ring *rx_rings = NULL; 2749 struct ice_vsi *vsi = np->vsi; 2750 struct ice_pf *pf = vsi->back; 2751 int i, timeout = 50, err = 0; 2752 u16 new_rx_cnt, new_tx_cnt; 2753 2754 if (ring->tx_pending > ICE_MAX_NUM_DESC || 2755 ring->tx_pending < ICE_MIN_NUM_DESC || 2756 ring->rx_pending > ICE_MAX_NUM_DESC || 2757 ring->rx_pending < ICE_MIN_NUM_DESC) { 2758 netdev_err(netdev, "Descriptors requested (Tx: %d / Rx: %d) out of range [%d-%d] (increment %d)\n", 2759 ring->tx_pending, ring->rx_pending, 2760 ICE_MIN_NUM_DESC, ICE_MAX_NUM_DESC, 2761 ICE_REQ_DESC_MULTIPLE); 2762 return -EINVAL; 2763 } 2764 2765 new_tx_cnt = ALIGN(ring->tx_pending, ICE_REQ_DESC_MULTIPLE); 2766 if (new_tx_cnt != ring->tx_pending) 2767 netdev_info(netdev, "Requested Tx descriptor count rounded up to %d\n", 2768 new_tx_cnt); 2769 new_rx_cnt = ALIGN(ring->rx_pending, ICE_REQ_DESC_MULTIPLE); 2770 if (new_rx_cnt != ring->rx_pending) 2771 netdev_info(netdev, "Requested Rx descriptor count rounded up to %d\n", 2772 new_rx_cnt); 2773 2774 /* if nothing to do return success */ 2775 if (new_tx_cnt == vsi->tx_rings[0]->count && 2776 new_rx_cnt == vsi->rx_rings[0]->count) { 2777 netdev_dbg(netdev, "Nothing to change, descriptor count is same as requested\n"); 2778 return 0; 2779 } 2780 2781 /* If there is a AF_XDP UMEM attached to any of Rx rings, 2782 * disallow changing the number of descriptors -- regardless 2783 * if the netdev is running or not. 2784 */ 2785 if (ice_xsk_any_rx_ring_ena(vsi)) 2786 return -EBUSY; 2787 2788 while (test_and_set_bit(ICE_CFG_BUSY, pf->state)) { 2789 timeout--; 2790 if (!timeout) 2791 return -EBUSY; 2792 usleep_range(1000, 2000); 2793 } 2794 2795 /* set for the next time the netdev is started */ 2796 if (!netif_running(vsi->netdev)) { 2797 ice_for_each_alloc_txq(vsi, i) 2798 vsi->tx_rings[i]->count = new_tx_cnt; 2799 ice_for_each_alloc_rxq(vsi, i) 2800 vsi->rx_rings[i]->count = new_rx_cnt; 2801 if (ice_is_xdp_ena_vsi(vsi)) 2802 ice_for_each_xdp_txq(vsi, i) 2803 vsi->xdp_rings[i]->count = new_tx_cnt; 2804 vsi->num_tx_desc = (u16)new_tx_cnt; 2805 vsi->num_rx_desc = (u16)new_rx_cnt; 2806 netdev_dbg(netdev, "Link is down, descriptor count change happens when link is brought up\n"); 2807 goto done; 2808 } 2809 2810 if (new_tx_cnt == vsi->tx_rings[0]->count) 2811 goto process_rx; 2812 2813 /* alloc updated Tx resources */ 2814 netdev_info(netdev, "Changing Tx descriptor count from %d to %d\n", 2815 vsi->tx_rings[0]->count, new_tx_cnt); 2816 2817 tx_rings = kcalloc(vsi->num_txq, sizeof(*tx_rings), GFP_KERNEL); 2818 if (!tx_rings) { 2819 err = -ENOMEM; 2820 goto done; 2821 } 2822 2823 ice_for_each_txq(vsi, i) { 2824 /* clone ring and setup updated count */ 2825 tx_rings[i] = *vsi->tx_rings[i]; 2826 tx_rings[i].count = new_tx_cnt; 2827 tx_rings[i].desc = NULL; 2828 tx_rings[i].tx_buf = NULL; 2829 err = ice_setup_tx_ring(&tx_rings[i]); 2830 if (err) { 2831 while (i--) 2832 ice_clean_tx_ring(&tx_rings[i]); 2833 kfree(tx_rings); 2834 goto done; 2835 } 2836 } 2837 2838 if (!ice_is_xdp_ena_vsi(vsi)) 2839 goto process_rx; 2840 2841 /* alloc updated XDP resources */ 2842 netdev_info(netdev, "Changing XDP descriptor count from %d to %d\n", 2843 vsi->xdp_rings[0]->count, new_tx_cnt); 2844 2845 xdp_rings = kcalloc(vsi->num_xdp_txq, sizeof(*xdp_rings), GFP_KERNEL); 2846 if (!xdp_rings) { 2847 err = -ENOMEM; 2848 goto free_tx; 2849 } 2850 2851 ice_for_each_xdp_txq(vsi, i) { 2852 /* clone ring and setup updated count */ 2853 xdp_rings[i] = *vsi->xdp_rings[i]; 2854 xdp_rings[i].count = new_tx_cnt; 2855 xdp_rings[i].next_dd = ICE_RING_QUARTER(&xdp_rings[i]) - 1; 2856 xdp_rings[i].next_rs = ICE_RING_QUARTER(&xdp_rings[i]) - 1; 2857 xdp_rings[i].desc = NULL; 2858 xdp_rings[i].tx_buf = NULL; 2859 err = ice_setup_tx_ring(&xdp_rings[i]); 2860 if (err) { 2861 while (i--) 2862 ice_clean_tx_ring(&xdp_rings[i]); 2863 kfree(xdp_rings); 2864 goto free_tx; 2865 } 2866 ice_set_ring_xdp(&xdp_rings[i]); 2867 } 2868 2869 process_rx: 2870 if (new_rx_cnt == vsi->rx_rings[0]->count) 2871 goto process_link; 2872 2873 /* alloc updated Rx resources */ 2874 netdev_info(netdev, "Changing Rx descriptor count from %d to %d\n", 2875 vsi->rx_rings[0]->count, new_rx_cnt); 2876 2877 rx_rings = kcalloc(vsi->num_rxq, sizeof(*rx_rings), GFP_KERNEL); 2878 if (!rx_rings) { 2879 err = -ENOMEM; 2880 goto done; 2881 } 2882 2883 ice_for_each_rxq(vsi, i) { 2884 /* clone ring and setup updated count */ 2885 rx_rings[i] = *vsi->rx_rings[i]; 2886 rx_rings[i].count = new_rx_cnt; 2887 rx_rings[i].desc = NULL; 2888 rx_rings[i].rx_buf = NULL; 2889 /* this is to allow wr32 to have something to write to 2890 * during early allocation of Rx buffers 2891 */ 2892 rx_rings[i].tail = vsi->back->hw.hw_addr + PRTGEN_STATUS; 2893 2894 err = ice_setup_rx_ring(&rx_rings[i]); 2895 if (err) 2896 goto rx_unwind; 2897 2898 /* allocate Rx buffers */ 2899 err = ice_alloc_rx_bufs(&rx_rings[i], 2900 ICE_DESC_UNUSED(&rx_rings[i])); 2901 rx_unwind: 2902 if (err) { 2903 while (i) { 2904 i--; 2905 ice_free_rx_ring(&rx_rings[i]); 2906 } 2907 kfree(rx_rings); 2908 err = -ENOMEM; 2909 goto free_tx; 2910 } 2911 } 2912 2913 process_link: 2914 /* Bring interface down, copy in the new ring info, then restore the 2915 * interface. if VSI is up, bring it down and then back up 2916 */ 2917 if (!test_and_set_bit(ICE_VSI_DOWN, vsi->state)) { 2918 ice_down(vsi); 2919 2920 if (tx_rings) { 2921 ice_for_each_txq(vsi, i) { 2922 ice_free_tx_ring(vsi->tx_rings[i]); 2923 *vsi->tx_rings[i] = tx_rings[i]; 2924 } 2925 kfree(tx_rings); 2926 } 2927 2928 if (rx_rings) { 2929 ice_for_each_rxq(vsi, i) { 2930 ice_free_rx_ring(vsi->rx_rings[i]); 2931 /* copy the real tail offset */ 2932 rx_rings[i].tail = vsi->rx_rings[i]->tail; 2933 /* this is to fake out the allocation routine 2934 * into thinking it has to realloc everything 2935 * but the recycling logic will let us re-use 2936 * the buffers allocated above 2937 */ 2938 rx_rings[i].next_to_use = 0; 2939 rx_rings[i].next_to_clean = 0; 2940 rx_rings[i].next_to_alloc = 0; 2941 *vsi->rx_rings[i] = rx_rings[i]; 2942 } 2943 kfree(rx_rings); 2944 } 2945 2946 if (xdp_rings) { 2947 ice_for_each_xdp_txq(vsi, i) { 2948 ice_free_tx_ring(vsi->xdp_rings[i]); 2949 *vsi->xdp_rings[i] = xdp_rings[i]; 2950 } 2951 kfree(xdp_rings); 2952 } 2953 2954 vsi->num_tx_desc = new_tx_cnt; 2955 vsi->num_rx_desc = new_rx_cnt; 2956 ice_up(vsi); 2957 } 2958 goto done; 2959 2960 free_tx: 2961 /* error cleanup if the Rx allocations failed after getting Tx */ 2962 if (tx_rings) { 2963 ice_for_each_txq(vsi, i) 2964 ice_free_tx_ring(&tx_rings[i]); 2965 kfree(tx_rings); 2966 } 2967 2968 done: 2969 clear_bit(ICE_CFG_BUSY, pf->state); 2970 return err; 2971 } 2972 2973 /** 2974 * ice_get_pauseparam - Get Flow Control status 2975 * @netdev: network interface device structure 2976 * @pause: ethernet pause (flow control) parameters 2977 * 2978 * Get requested flow control status from PHY capability. 2979 * If autoneg is true, then ethtool will send the ETHTOOL_GSET ioctl which 2980 * is handled by ice_get_link_ksettings. ice_get_link_ksettings will report 2981 * the negotiated Rx/Tx pause via lp_advertising. 2982 */ 2983 static void 2984 ice_get_pauseparam(struct net_device *netdev, struct ethtool_pauseparam *pause) 2985 { 2986 struct ice_netdev_priv *np = netdev_priv(netdev); 2987 struct ice_port_info *pi = np->vsi->port_info; 2988 struct ice_aqc_get_phy_caps_data *pcaps; 2989 struct ice_dcbx_cfg *dcbx_cfg; 2990 int status; 2991 2992 /* Initialize pause params */ 2993 pause->rx_pause = 0; 2994 pause->tx_pause = 0; 2995 2996 dcbx_cfg = &pi->qos_cfg.local_dcbx_cfg; 2997 2998 pcaps = kzalloc(sizeof(*pcaps), GFP_KERNEL); 2999 if (!pcaps) 3000 return; 3001 3002 /* Get current PHY config */ 3003 status = ice_aq_get_phy_caps(pi, false, ICE_AQC_REPORT_ACTIVE_CFG, pcaps, 3004 NULL); 3005 if (status) 3006 goto out; 3007 3008 pause->autoneg = ice_is_phy_caps_an_enabled(pcaps) ? AUTONEG_ENABLE : 3009 AUTONEG_DISABLE; 3010 3011 if (dcbx_cfg->pfc.pfcena) 3012 /* PFC enabled so report LFC as off */ 3013 goto out; 3014 3015 if (pcaps->caps & ICE_AQC_PHY_EN_TX_LINK_PAUSE) 3016 pause->tx_pause = 1; 3017 if (pcaps->caps & ICE_AQC_PHY_EN_RX_LINK_PAUSE) 3018 pause->rx_pause = 1; 3019 3020 out: 3021 kfree(pcaps); 3022 } 3023 3024 /** 3025 * ice_set_pauseparam - Set Flow Control parameter 3026 * @netdev: network interface device structure 3027 * @pause: return Tx/Rx flow control status 3028 */ 3029 static int 3030 ice_set_pauseparam(struct net_device *netdev, struct ethtool_pauseparam *pause) 3031 { 3032 struct ice_netdev_priv *np = netdev_priv(netdev); 3033 struct ice_aqc_get_phy_caps_data *pcaps; 3034 struct ice_link_status *hw_link_info; 3035 struct ice_pf *pf = np->vsi->back; 3036 struct ice_dcbx_cfg *dcbx_cfg; 3037 struct ice_vsi *vsi = np->vsi; 3038 struct ice_hw *hw = &pf->hw; 3039 struct ice_port_info *pi; 3040 u8 aq_failures; 3041 bool link_up; 3042 u32 is_an; 3043 int err; 3044 3045 pi = vsi->port_info; 3046 hw_link_info = &pi->phy.link_info; 3047 dcbx_cfg = &pi->qos_cfg.local_dcbx_cfg; 3048 link_up = hw_link_info->link_info & ICE_AQ_LINK_UP; 3049 3050 /* Changing the port's flow control is not supported if this isn't the 3051 * PF VSI 3052 */ 3053 if (vsi->type != ICE_VSI_PF) { 3054 netdev_info(netdev, "Changing flow control parameters only supported for PF VSI\n"); 3055 return -EOPNOTSUPP; 3056 } 3057 3058 /* Get pause param reports configured and negotiated flow control pause 3059 * when ETHTOOL_GLINKSETTINGS is defined. Since ETHTOOL_GLINKSETTINGS is 3060 * defined get pause param pause->autoneg reports SW configured setting, 3061 * so compare pause->autoneg with SW configured to prevent the user from 3062 * using set pause param to chance autoneg. 3063 */ 3064 pcaps = kzalloc(sizeof(*pcaps), GFP_KERNEL); 3065 if (!pcaps) 3066 return -ENOMEM; 3067 3068 /* Get current PHY config */ 3069 err = ice_aq_get_phy_caps(pi, false, ICE_AQC_REPORT_ACTIVE_CFG, pcaps, 3070 NULL); 3071 if (err) { 3072 kfree(pcaps); 3073 return err; 3074 } 3075 3076 is_an = ice_is_phy_caps_an_enabled(pcaps) ? AUTONEG_ENABLE : 3077 AUTONEG_DISABLE; 3078 3079 kfree(pcaps); 3080 3081 if (pause->autoneg != is_an) { 3082 netdev_info(netdev, "To change autoneg please use: ethtool -s <dev> autoneg <on|off>\n"); 3083 return -EOPNOTSUPP; 3084 } 3085 3086 /* If we have link and don't have autoneg */ 3087 if (!test_bit(ICE_DOWN, pf->state) && 3088 !(hw_link_info->an_info & ICE_AQ_AN_COMPLETED)) { 3089 /* Send message that it might not necessarily work*/ 3090 netdev_info(netdev, "Autoneg did not complete so changing settings may not result in an actual change.\n"); 3091 } 3092 3093 if (dcbx_cfg->pfc.pfcena) { 3094 netdev_info(netdev, "Priority flow control enabled. Cannot set link flow control.\n"); 3095 return -EOPNOTSUPP; 3096 } 3097 if (pause->rx_pause && pause->tx_pause) 3098 pi->fc.req_mode = ICE_FC_FULL; 3099 else if (pause->rx_pause && !pause->tx_pause) 3100 pi->fc.req_mode = ICE_FC_RX_PAUSE; 3101 else if (!pause->rx_pause && pause->tx_pause) 3102 pi->fc.req_mode = ICE_FC_TX_PAUSE; 3103 else if (!pause->rx_pause && !pause->tx_pause) 3104 pi->fc.req_mode = ICE_FC_NONE; 3105 else 3106 return -EINVAL; 3107 3108 /* Set the FC mode and only restart AN if link is up */ 3109 err = ice_set_fc(pi, &aq_failures, link_up); 3110 3111 if (aq_failures & ICE_SET_FC_AQ_FAIL_GET) { 3112 netdev_info(netdev, "Set fc failed on the get_phy_capabilities call with err %d aq_err %s\n", 3113 err, ice_aq_str(hw->adminq.sq_last_status)); 3114 err = -EAGAIN; 3115 } else if (aq_failures & ICE_SET_FC_AQ_FAIL_SET) { 3116 netdev_info(netdev, "Set fc failed on the set_phy_config call with err %d aq_err %s\n", 3117 err, ice_aq_str(hw->adminq.sq_last_status)); 3118 err = -EAGAIN; 3119 } else if (aq_failures & ICE_SET_FC_AQ_FAIL_UPDATE) { 3120 netdev_info(netdev, "Set fc failed on the get_link_info call with err %d aq_err %s\n", 3121 err, ice_aq_str(hw->adminq.sq_last_status)); 3122 err = -EAGAIN; 3123 } 3124 3125 return err; 3126 } 3127 3128 /** 3129 * ice_get_rxfh_key_size - get the RSS hash key size 3130 * @netdev: network interface device structure 3131 * 3132 * Returns the table size. 3133 */ 3134 static u32 ice_get_rxfh_key_size(struct net_device __always_unused *netdev) 3135 { 3136 return ICE_VSIQF_HKEY_ARRAY_SIZE; 3137 } 3138 3139 /** 3140 * ice_get_rxfh_indir_size - get the Rx flow hash indirection table size 3141 * @netdev: network interface device structure 3142 * 3143 * Returns the table size. 3144 */ 3145 static u32 ice_get_rxfh_indir_size(struct net_device *netdev) 3146 { 3147 struct ice_netdev_priv *np = netdev_priv(netdev); 3148 3149 return np->vsi->rss_table_size; 3150 } 3151 3152 static int 3153 ice_get_rxfh_context(struct net_device *netdev, u32 *indir, 3154 u8 *key, u8 *hfunc, u32 rss_context) 3155 { 3156 struct ice_netdev_priv *np = netdev_priv(netdev); 3157 struct ice_vsi *vsi = np->vsi; 3158 struct ice_pf *pf = vsi->back; 3159 u16 qcount, offset; 3160 int err, num_tc, i; 3161 u8 *lut; 3162 3163 if (!test_bit(ICE_FLAG_RSS_ENA, pf->flags)) { 3164 netdev_warn(netdev, "RSS is not supported on this VSI!\n"); 3165 return -EOPNOTSUPP; 3166 } 3167 3168 if (rss_context && !ice_is_adq_active(pf)) { 3169 netdev_err(netdev, "RSS context cannot be non-zero when ADQ is not configured.\n"); 3170 return -EINVAL; 3171 } 3172 3173 qcount = vsi->mqprio_qopt.qopt.count[rss_context]; 3174 offset = vsi->mqprio_qopt.qopt.offset[rss_context]; 3175 3176 if (rss_context && ice_is_adq_active(pf)) { 3177 num_tc = vsi->mqprio_qopt.qopt.num_tc; 3178 if (rss_context >= num_tc) { 3179 netdev_err(netdev, "RSS context:%d > num_tc:%d\n", 3180 rss_context, num_tc); 3181 return -EINVAL; 3182 } 3183 /* Use channel VSI of given TC */ 3184 vsi = vsi->tc_map_vsi[rss_context]; 3185 } 3186 3187 if (hfunc) 3188 *hfunc = ETH_RSS_HASH_TOP; 3189 3190 if (!indir) 3191 return 0; 3192 3193 lut = kzalloc(vsi->rss_table_size, GFP_KERNEL); 3194 if (!lut) 3195 return -ENOMEM; 3196 3197 err = ice_get_rss_key(vsi, key); 3198 if (err) 3199 goto out; 3200 3201 err = ice_get_rss_lut(vsi, lut, vsi->rss_table_size); 3202 if (err) 3203 goto out; 3204 3205 if (ice_is_adq_active(pf)) { 3206 for (i = 0; i < vsi->rss_table_size; i++) 3207 indir[i] = offset + lut[i] % qcount; 3208 goto out; 3209 } 3210 3211 for (i = 0; i < vsi->rss_table_size; i++) 3212 indir[i] = lut[i]; 3213 3214 out: 3215 kfree(lut); 3216 return err; 3217 } 3218 3219 /** 3220 * ice_get_rxfh - get the Rx flow hash indirection table 3221 * @netdev: network interface device structure 3222 * @indir: indirection table 3223 * @key: hash key 3224 * @hfunc: hash function 3225 * 3226 * Reads the indirection table directly from the hardware. 3227 */ 3228 static int 3229 ice_get_rxfh(struct net_device *netdev, u32 *indir, u8 *key, u8 *hfunc) 3230 { 3231 return ice_get_rxfh_context(netdev, indir, key, hfunc, 0); 3232 } 3233 3234 /** 3235 * ice_set_rxfh - set the Rx flow hash indirection table 3236 * @netdev: network interface device structure 3237 * @indir: indirection table 3238 * @key: hash key 3239 * @hfunc: hash function 3240 * 3241 * Returns -EINVAL if the table specifies an invalid queue ID, otherwise 3242 * returns 0 after programming the table. 3243 */ 3244 static int 3245 ice_set_rxfh(struct net_device *netdev, const u32 *indir, const u8 *key, 3246 const u8 hfunc) 3247 { 3248 struct ice_netdev_priv *np = netdev_priv(netdev); 3249 struct ice_vsi *vsi = np->vsi; 3250 struct ice_pf *pf = vsi->back; 3251 struct device *dev; 3252 int err; 3253 3254 dev = ice_pf_to_dev(pf); 3255 if (hfunc != ETH_RSS_HASH_NO_CHANGE && hfunc != ETH_RSS_HASH_TOP) 3256 return -EOPNOTSUPP; 3257 3258 if (!test_bit(ICE_FLAG_RSS_ENA, pf->flags)) { 3259 /* RSS not supported return error here */ 3260 netdev_warn(netdev, "RSS is not configured on this VSI!\n"); 3261 return -EIO; 3262 } 3263 3264 if (ice_is_adq_active(pf)) { 3265 netdev_err(netdev, "Cannot change RSS params with ADQ configured.\n"); 3266 return -EOPNOTSUPP; 3267 } 3268 3269 if (key) { 3270 if (!vsi->rss_hkey_user) { 3271 vsi->rss_hkey_user = 3272 devm_kzalloc(dev, ICE_VSIQF_HKEY_ARRAY_SIZE, 3273 GFP_KERNEL); 3274 if (!vsi->rss_hkey_user) 3275 return -ENOMEM; 3276 } 3277 memcpy(vsi->rss_hkey_user, key, ICE_VSIQF_HKEY_ARRAY_SIZE); 3278 3279 err = ice_set_rss_key(vsi, vsi->rss_hkey_user); 3280 if (err) 3281 return err; 3282 } 3283 3284 if (!vsi->rss_lut_user) { 3285 vsi->rss_lut_user = devm_kzalloc(dev, vsi->rss_table_size, 3286 GFP_KERNEL); 3287 if (!vsi->rss_lut_user) 3288 return -ENOMEM; 3289 } 3290 3291 /* Each 32 bits pointed by 'indir' is stored with a lut entry */ 3292 if (indir) { 3293 int i; 3294 3295 for (i = 0; i < vsi->rss_table_size; i++) 3296 vsi->rss_lut_user[i] = (u8)(indir[i]); 3297 } else { 3298 ice_fill_rss_lut(vsi->rss_lut_user, vsi->rss_table_size, 3299 vsi->rss_size); 3300 } 3301 3302 err = ice_set_rss_lut(vsi, vsi->rss_lut_user, vsi->rss_table_size); 3303 if (err) 3304 return err; 3305 3306 return 0; 3307 } 3308 3309 static int 3310 ice_get_ts_info(struct net_device *dev, struct ethtool_ts_info *info) 3311 { 3312 struct ice_pf *pf = ice_netdev_to_pf(dev); 3313 3314 /* only report timestamping if PTP is enabled */ 3315 if (!test_bit(ICE_FLAG_PTP, pf->flags)) 3316 return ethtool_op_get_ts_info(dev, info); 3317 3318 info->so_timestamping = SOF_TIMESTAMPING_TX_SOFTWARE | 3319 SOF_TIMESTAMPING_RX_SOFTWARE | 3320 SOF_TIMESTAMPING_SOFTWARE | 3321 SOF_TIMESTAMPING_TX_HARDWARE | 3322 SOF_TIMESTAMPING_RX_HARDWARE | 3323 SOF_TIMESTAMPING_RAW_HARDWARE; 3324 3325 info->phc_index = ice_get_ptp_clock_index(pf); 3326 3327 info->tx_types = BIT(HWTSTAMP_TX_OFF) | BIT(HWTSTAMP_TX_ON); 3328 3329 info->rx_filters = BIT(HWTSTAMP_FILTER_NONE) | BIT(HWTSTAMP_FILTER_ALL); 3330 3331 return 0; 3332 } 3333 3334 /** 3335 * ice_get_max_txq - return the maximum number of Tx queues for in a PF 3336 * @pf: PF structure 3337 */ 3338 static int ice_get_max_txq(struct ice_pf *pf) 3339 { 3340 return min3(pf->num_lan_msix, (u16)num_online_cpus(), 3341 (u16)pf->hw.func_caps.common_cap.num_txq); 3342 } 3343 3344 /** 3345 * ice_get_max_rxq - return the maximum number of Rx queues for in a PF 3346 * @pf: PF structure 3347 */ 3348 static int ice_get_max_rxq(struct ice_pf *pf) 3349 { 3350 return min3(pf->num_lan_msix, (u16)num_online_cpus(), 3351 (u16)pf->hw.func_caps.common_cap.num_rxq); 3352 } 3353 3354 /** 3355 * ice_get_combined_cnt - return the current number of combined channels 3356 * @vsi: PF VSI pointer 3357 * 3358 * Go through all queue vectors and count ones that have both Rx and Tx ring 3359 * attached 3360 */ 3361 static u32 ice_get_combined_cnt(struct ice_vsi *vsi) 3362 { 3363 u32 combined = 0; 3364 int q_idx; 3365 3366 ice_for_each_q_vector(vsi, q_idx) { 3367 struct ice_q_vector *q_vector = vsi->q_vectors[q_idx]; 3368 3369 if (q_vector->rx.rx_ring && q_vector->tx.tx_ring) 3370 combined++; 3371 } 3372 3373 return combined; 3374 } 3375 3376 /** 3377 * ice_get_channels - get the current and max supported channels 3378 * @dev: network interface device structure 3379 * @ch: ethtool channel data structure 3380 */ 3381 static void 3382 ice_get_channels(struct net_device *dev, struct ethtool_channels *ch) 3383 { 3384 struct ice_netdev_priv *np = netdev_priv(dev); 3385 struct ice_vsi *vsi = np->vsi; 3386 struct ice_pf *pf = vsi->back; 3387 3388 /* report maximum channels */ 3389 ch->max_rx = ice_get_max_rxq(pf); 3390 ch->max_tx = ice_get_max_txq(pf); 3391 ch->max_combined = min_t(int, ch->max_rx, ch->max_tx); 3392 3393 /* report current channels */ 3394 ch->combined_count = ice_get_combined_cnt(vsi); 3395 ch->rx_count = vsi->num_rxq - ch->combined_count; 3396 ch->tx_count = vsi->num_txq - ch->combined_count; 3397 3398 /* report other queues */ 3399 ch->other_count = test_bit(ICE_FLAG_FD_ENA, pf->flags) ? 1 : 0; 3400 ch->max_other = ch->other_count; 3401 } 3402 3403 /** 3404 * ice_get_valid_rss_size - return valid number of RSS queues 3405 * @hw: pointer to the HW structure 3406 * @new_size: requested RSS queues 3407 */ 3408 static int ice_get_valid_rss_size(struct ice_hw *hw, int new_size) 3409 { 3410 struct ice_hw_common_caps *caps = &hw->func_caps.common_cap; 3411 3412 return min_t(int, new_size, BIT(caps->rss_table_entry_width)); 3413 } 3414 3415 /** 3416 * ice_vsi_set_dflt_rss_lut - set default RSS LUT with requested RSS size 3417 * @vsi: VSI to reconfigure RSS LUT on 3418 * @req_rss_size: requested range of queue numbers for hashing 3419 * 3420 * Set the VSI's RSS parameters, configure the RSS LUT based on these. 3421 */ 3422 static int ice_vsi_set_dflt_rss_lut(struct ice_vsi *vsi, int req_rss_size) 3423 { 3424 struct ice_pf *pf = vsi->back; 3425 struct device *dev; 3426 struct ice_hw *hw; 3427 int err; 3428 u8 *lut; 3429 3430 dev = ice_pf_to_dev(pf); 3431 hw = &pf->hw; 3432 3433 if (!req_rss_size) 3434 return -EINVAL; 3435 3436 lut = kzalloc(vsi->rss_table_size, GFP_KERNEL); 3437 if (!lut) 3438 return -ENOMEM; 3439 3440 /* set RSS LUT parameters */ 3441 if (!test_bit(ICE_FLAG_RSS_ENA, pf->flags)) 3442 vsi->rss_size = 1; 3443 else 3444 vsi->rss_size = ice_get_valid_rss_size(hw, req_rss_size); 3445 3446 /* create/set RSS LUT */ 3447 ice_fill_rss_lut(lut, vsi->rss_table_size, vsi->rss_size); 3448 err = ice_set_rss_lut(vsi, lut, vsi->rss_table_size); 3449 if (err) 3450 dev_err(dev, "Cannot set RSS lut, err %d aq_err %s\n", err, 3451 ice_aq_str(hw->adminq.sq_last_status)); 3452 3453 kfree(lut); 3454 return err; 3455 } 3456 3457 /** 3458 * ice_set_channels - set the number channels 3459 * @dev: network interface device structure 3460 * @ch: ethtool channel data structure 3461 */ 3462 static int ice_set_channels(struct net_device *dev, struct ethtool_channels *ch) 3463 { 3464 struct ice_netdev_priv *np = netdev_priv(dev); 3465 struct ice_vsi *vsi = np->vsi; 3466 struct ice_pf *pf = vsi->back; 3467 int new_rx = 0, new_tx = 0; 3468 u32 curr_combined; 3469 3470 /* do not support changing channels in Safe Mode */ 3471 if (ice_is_safe_mode(pf)) { 3472 netdev_err(dev, "Changing channel in Safe Mode is not supported\n"); 3473 return -EOPNOTSUPP; 3474 } 3475 /* do not support changing other_count */ 3476 if (ch->other_count != (test_bit(ICE_FLAG_FD_ENA, pf->flags) ? 1U : 0U)) 3477 return -EINVAL; 3478 3479 if (ice_is_adq_active(pf)) { 3480 netdev_err(dev, "Cannot set channels with ADQ configured.\n"); 3481 return -EOPNOTSUPP; 3482 } 3483 3484 if (test_bit(ICE_FLAG_FD_ENA, pf->flags) && pf->hw.fdir_active_fltr) { 3485 netdev_err(dev, "Cannot set channels when Flow Director filters are active\n"); 3486 return -EOPNOTSUPP; 3487 } 3488 3489 curr_combined = ice_get_combined_cnt(vsi); 3490 3491 /* these checks are for cases where user didn't specify a particular 3492 * value on cmd line but we get non-zero value anyway via 3493 * get_channels(); look at ethtool.c in ethtool repository (the user 3494 * space part), particularly, do_schannels() routine 3495 */ 3496 if (ch->rx_count == vsi->num_rxq - curr_combined) 3497 ch->rx_count = 0; 3498 if (ch->tx_count == vsi->num_txq - curr_combined) 3499 ch->tx_count = 0; 3500 if (ch->combined_count == curr_combined) 3501 ch->combined_count = 0; 3502 3503 if (!(ch->combined_count || (ch->rx_count && ch->tx_count))) { 3504 netdev_err(dev, "Please specify at least 1 Rx and 1 Tx channel\n"); 3505 return -EINVAL; 3506 } 3507 3508 new_rx = ch->combined_count + ch->rx_count; 3509 new_tx = ch->combined_count + ch->tx_count; 3510 3511 if (new_rx < vsi->tc_cfg.numtc) { 3512 netdev_err(dev, "Cannot set less Rx channels, than Traffic Classes you have (%u)\n", 3513 vsi->tc_cfg.numtc); 3514 return -EINVAL; 3515 } 3516 if (new_tx < vsi->tc_cfg.numtc) { 3517 netdev_err(dev, "Cannot set less Tx channels, than Traffic Classes you have (%u)\n", 3518 vsi->tc_cfg.numtc); 3519 return -EINVAL; 3520 } 3521 if (new_rx > ice_get_max_rxq(pf)) { 3522 netdev_err(dev, "Maximum allowed Rx channels is %d\n", 3523 ice_get_max_rxq(pf)); 3524 return -EINVAL; 3525 } 3526 if (new_tx > ice_get_max_txq(pf)) { 3527 netdev_err(dev, "Maximum allowed Tx channels is %d\n", 3528 ice_get_max_txq(pf)); 3529 return -EINVAL; 3530 } 3531 3532 ice_vsi_recfg_qs(vsi, new_rx, new_tx); 3533 3534 if (!netif_is_rxfh_configured(dev)) 3535 return ice_vsi_set_dflt_rss_lut(vsi, new_rx); 3536 3537 /* Update rss_size due to change in Rx queues */ 3538 vsi->rss_size = ice_get_valid_rss_size(&pf->hw, new_rx); 3539 3540 return 0; 3541 } 3542 3543 /** 3544 * ice_get_wol - get current Wake on LAN configuration 3545 * @netdev: network interface device structure 3546 * @wol: Ethtool structure to retrieve WoL settings 3547 */ 3548 static void ice_get_wol(struct net_device *netdev, struct ethtool_wolinfo *wol) 3549 { 3550 struct ice_netdev_priv *np = netdev_priv(netdev); 3551 struct ice_pf *pf = np->vsi->back; 3552 3553 if (np->vsi->type != ICE_VSI_PF) 3554 netdev_warn(netdev, "Wake on LAN is not supported on this interface!\n"); 3555 3556 /* Get WoL settings based on the HW capability */ 3557 if (ice_is_wol_supported(&pf->hw)) { 3558 wol->supported = WAKE_MAGIC; 3559 wol->wolopts = pf->wol_ena ? WAKE_MAGIC : 0; 3560 } else { 3561 wol->supported = 0; 3562 wol->wolopts = 0; 3563 } 3564 } 3565 3566 /** 3567 * ice_set_wol - set Wake on LAN on supported device 3568 * @netdev: network interface device structure 3569 * @wol: Ethtool structure to set WoL 3570 */ 3571 static int ice_set_wol(struct net_device *netdev, struct ethtool_wolinfo *wol) 3572 { 3573 struct ice_netdev_priv *np = netdev_priv(netdev); 3574 struct ice_vsi *vsi = np->vsi; 3575 struct ice_pf *pf = vsi->back; 3576 3577 if (vsi->type != ICE_VSI_PF || !ice_is_wol_supported(&pf->hw)) 3578 return -EOPNOTSUPP; 3579 3580 /* only magic packet is supported */ 3581 if (wol->wolopts && wol->wolopts != WAKE_MAGIC) 3582 return -EOPNOTSUPP; 3583 3584 /* Set WoL only if there is a new value */ 3585 if (pf->wol_ena != !!wol->wolopts) { 3586 pf->wol_ena = !!wol->wolopts; 3587 device_set_wakeup_enable(ice_pf_to_dev(pf), pf->wol_ena); 3588 netdev_dbg(netdev, "WoL magic packet %sabled\n", 3589 pf->wol_ena ? "en" : "dis"); 3590 } 3591 3592 return 0; 3593 } 3594 3595 /** 3596 * ice_get_rc_coalesce - get ITR values for specific ring container 3597 * @ec: ethtool structure to fill with driver's coalesce settings 3598 * @rc: ring container that the ITR values will come from 3599 * 3600 * Query the device for ice_ring_container specific ITR values. This is 3601 * done per ice_ring_container because each q_vector can have 1 or more rings 3602 * and all of said ring(s) will have the same ITR values. 3603 * 3604 * Returns 0 on success, negative otherwise. 3605 */ 3606 static int 3607 ice_get_rc_coalesce(struct ethtool_coalesce *ec, struct ice_ring_container *rc) 3608 { 3609 if (!rc->rx_ring) 3610 return -EINVAL; 3611 3612 switch (rc->type) { 3613 case ICE_RX_CONTAINER: 3614 ec->use_adaptive_rx_coalesce = ITR_IS_DYNAMIC(rc); 3615 ec->rx_coalesce_usecs = rc->itr_setting; 3616 ec->rx_coalesce_usecs_high = rc->rx_ring->q_vector->intrl; 3617 break; 3618 case ICE_TX_CONTAINER: 3619 ec->use_adaptive_tx_coalesce = ITR_IS_DYNAMIC(rc); 3620 ec->tx_coalesce_usecs = rc->itr_setting; 3621 break; 3622 default: 3623 dev_dbg(ice_pf_to_dev(rc->rx_ring->vsi->back), "Invalid c_type %d\n", rc->type); 3624 return -EINVAL; 3625 } 3626 3627 return 0; 3628 } 3629 3630 /** 3631 * ice_get_q_coalesce - get a queue's ITR/INTRL (coalesce) settings 3632 * @vsi: VSI associated to the queue for getting ITR/INTRL (coalesce) settings 3633 * @ec: coalesce settings to program the device with 3634 * @q_num: update ITR/INTRL (coalesce) settings for this queue number/index 3635 * 3636 * Return 0 on success, and negative under the following conditions: 3637 * 1. Getting Tx or Rx ITR/INTRL (coalesce) settings failed. 3638 * 2. The q_num passed in is not a valid number/index for Tx and Rx rings. 3639 */ 3640 static int 3641 ice_get_q_coalesce(struct ice_vsi *vsi, struct ethtool_coalesce *ec, int q_num) 3642 { 3643 if (q_num < vsi->num_rxq && q_num < vsi->num_txq) { 3644 if (ice_get_rc_coalesce(ec, 3645 &vsi->rx_rings[q_num]->q_vector->rx)) 3646 return -EINVAL; 3647 if (ice_get_rc_coalesce(ec, 3648 &vsi->tx_rings[q_num]->q_vector->tx)) 3649 return -EINVAL; 3650 } else if (q_num < vsi->num_rxq) { 3651 if (ice_get_rc_coalesce(ec, 3652 &vsi->rx_rings[q_num]->q_vector->rx)) 3653 return -EINVAL; 3654 } else if (q_num < vsi->num_txq) { 3655 if (ice_get_rc_coalesce(ec, 3656 &vsi->tx_rings[q_num]->q_vector->tx)) 3657 return -EINVAL; 3658 } else { 3659 return -EINVAL; 3660 } 3661 3662 return 0; 3663 } 3664 3665 /** 3666 * __ice_get_coalesce - get ITR/INTRL values for the device 3667 * @netdev: pointer to the netdev associated with this query 3668 * @ec: ethtool structure to fill with driver's coalesce settings 3669 * @q_num: queue number to get the coalesce settings for 3670 * 3671 * If the caller passes in a negative q_num then we return coalesce settings 3672 * based on queue number 0, else use the actual q_num passed in. 3673 */ 3674 static int 3675 __ice_get_coalesce(struct net_device *netdev, struct ethtool_coalesce *ec, 3676 int q_num) 3677 { 3678 struct ice_netdev_priv *np = netdev_priv(netdev); 3679 struct ice_vsi *vsi = np->vsi; 3680 3681 if (q_num < 0) 3682 q_num = 0; 3683 3684 if (ice_get_q_coalesce(vsi, ec, q_num)) 3685 return -EINVAL; 3686 3687 return 0; 3688 } 3689 3690 static int ice_get_coalesce(struct net_device *netdev, 3691 struct ethtool_coalesce *ec, 3692 struct kernel_ethtool_coalesce *kernel_coal, 3693 struct netlink_ext_ack *extack) 3694 { 3695 return __ice_get_coalesce(netdev, ec, -1); 3696 } 3697 3698 static int 3699 ice_get_per_q_coalesce(struct net_device *netdev, u32 q_num, 3700 struct ethtool_coalesce *ec) 3701 { 3702 return __ice_get_coalesce(netdev, ec, q_num); 3703 } 3704 3705 /** 3706 * ice_set_rc_coalesce - set ITR values for specific ring container 3707 * @ec: ethtool structure from user to update ITR settings 3708 * @rc: ring container that the ITR values will come from 3709 * @vsi: VSI associated to the ring container 3710 * 3711 * Set specific ITR values. This is done per ice_ring_container because each 3712 * q_vector can have 1 or more rings and all of said ring(s) will have the same 3713 * ITR values. 3714 * 3715 * Returns 0 on success, negative otherwise. 3716 */ 3717 static int 3718 ice_set_rc_coalesce(struct ethtool_coalesce *ec, 3719 struct ice_ring_container *rc, struct ice_vsi *vsi) 3720 { 3721 const char *c_type_str = (rc->type == ICE_RX_CONTAINER) ? "rx" : "tx"; 3722 u32 use_adaptive_coalesce, coalesce_usecs; 3723 struct ice_pf *pf = vsi->back; 3724 u16 itr_setting; 3725 3726 if (!rc->rx_ring) 3727 return -EINVAL; 3728 3729 switch (rc->type) { 3730 case ICE_RX_CONTAINER: 3731 { 3732 struct ice_q_vector *q_vector = rc->rx_ring->q_vector; 3733 3734 if (ec->rx_coalesce_usecs_high > ICE_MAX_INTRL || 3735 (ec->rx_coalesce_usecs_high && 3736 ec->rx_coalesce_usecs_high < pf->hw.intrl_gran)) { 3737 netdev_info(vsi->netdev, "Invalid value, %s-usecs-high valid values are 0 (disabled), %d-%d\n", 3738 c_type_str, pf->hw.intrl_gran, 3739 ICE_MAX_INTRL); 3740 return -EINVAL; 3741 } 3742 if (ec->rx_coalesce_usecs_high != q_vector->intrl && 3743 (ec->use_adaptive_rx_coalesce || ec->use_adaptive_tx_coalesce)) { 3744 netdev_info(vsi->netdev, "Invalid value, %s-usecs-high cannot be changed if adaptive-tx or adaptive-rx is enabled\n", 3745 c_type_str); 3746 return -EINVAL; 3747 } 3748 if (ec->rx_coalesce_usecs_high != q_vector->intrl) 3749 q_vector->intrl = ec->rx_coalesce_usecs_high; 3750 3751 use_adaptive_coalesce = ec->use_adaptive_rx_coalesce; 3752 coalesce_usecs = ec->rx_coalesce_usecs; 3753 3754 break; 3755 } 3756 case ICE_TX_CONTAINER: 3757 use_adaptive_coalesce = ec->use_adaptive_tx_coalesce; 3758 coalesce_usecs = ec->tx_coalesce_usecs; 3759 3760 break; 3761 default: 3762 dev_dbg(ice_pf_to_dev(pf), "Invalid container type %d\n", 3763 rc->type); 3764 return -EINVAL; 3765 } 3766 3767 itr_setting = rc->itr_setting; 3768 if (coalesce_usecs != itr_setting && use_adaptive_coalesce) { 3769 netdev_info(vsi->netdev, "%s interrupt throttling cannot be changed if adaptive-%s is enabled\n", 3770 c_type_str, c_type_str); 3771 return -EINVAL; 3772 } 3773 3774 if (coalesce_usecs > ICE_ITR_MAX) { 3775 netdev_info(vsi->netdev, "Invalid value, %s-usecs range is 0-%d\n", 3776 c_type_str, ICE_ITR_MAX); 3777 return -EINVAL; 3778 } 3779 3780 if (use_adaptive_coalesce) { 3781 rc->itr_mode = ITR_DYNAMIC; 3782 } else { 3783 rc->itr_mode = ITR_STATIC; 3784 /* store user facing value how it was set */ 3785 rc->itr_setting = coalesce_usecs; 3786 /* write the change to the register */ 3787 ice_write_itr(rc, coalesce_usecs); 3788 /* force writes to take effect immediately, the flush shouldn't 3789 * be done in the functions above because the intent is for 3790 * them to do lazy writes. 3791 */ 3792 ice_flush(&pf->hw); 3793 } 3794 3795 return 0; 3796 } 3797 3798 /** 3799 * ice_set_q_coalesce - set a queue's ITR/INTRL (coalesce) settings 3800 * @vsi: VSI associated to the queue that need updating 3801 * @ec: coalesce settings to program the device with 3802 * @q_num: update ITR/INTRL (coalesce) settings for this queue number/index 3803 * 3804 * Return 0 on success, and negative under the following conditions: 3805 * 1. Setting Tx or Rx ITR/INTRL (coalesce) settings failed. 3806 * 2. The q_num passed in is not a valid number/index for Tx and Rx rings. 3807 */ 3808 static int 3809 ice_set_q_coalesce(struct ice_vsi *vsi, struct ethtool_coalesce *ec, int q_num) 3810 { 3811 if (q_num < vsi->num_rxq && q_num < vsi->num_txq) { 3812 if (ice_set_rc_coalesce(ec, 3813 &vsi->rx_rings[q_num]->q_vector->rx, 3814 vsi)) 3815 return -EINVAL; 3816 3817 if (ice_set_rc_coalesce(ec, 3818 &vsi->tx_rings[q_num]->q_vector->tx, 3819 vsi)) 3820 return -EINVAL; 3821 } else if (q_num < vsi->num_rxq) { 3822 if (ice_set_rc_coalesce(ec, 3823 &vsi->rx_rings[q_num]->q_vector->rx, 3824 vsi)) 3825 return -EINVAL; 3826 } else if (q_num < vsi->num_txq) { 3827 if (ice_set_rc_coalesce(ec, 3828 &vsi->tx_rings[q_num]->q_vector->tx, 3829 vsi)) 3830 return -EINVAL; 3831 } else { 3832 return -EINVAL; 3833 } 3834 3835 return 0; 3836 } 3837 3838 /** 3839 * ice_print_if_odd_usecs - print message if user tries to set odd [tx|rx]-usecs 3840 * @netdev: netdev used for print 3841 * @itr_setting: previous user setting 3842 * @use_adaptive_coalesce: if adaptive coalesce is enabled or being enabled 3843 * @coalesce_usecs: requested value of [tx|rx]-usecs 3844 * @c_type_str: either "rx" or "tx" to match user set field of [tx|rx]-usecs 3845 */ 3846 static void 3847 ice_print_if_odd_usecs(struct net_device *netdev, u16 itr_setting, 3848 u32 use_adaptive_coalesce, u32 coalesce_usecs, 3849 const char *c_type_str) 3850 { 3851 if (use_adaptive_coalesce) 3852 return; 3853 3854 if (itr_setting != coalesce_usecs && (coalesce_usecs % 2)) 3855 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", 3856 c_type_str, coalesce_usecs, c_type_str, 3857 ITR_REG_ALIGN(coalesce_usecs)); 3858 } 3859 3860 /** 3861 * __ice_set_coalesce - set ITR/INTRL values for the device 3862 * @netdev: pointer to the netdev associated with this query 3863 * @ec: ethtool structure to fill with driver's coalesce settings 3864 * @q_num: queue number to get the coalesce settings for 3865 * 3866 * If the caller passes in a negative q_num then we set the coalesce settings 3867 * for all Tx/Rx queues, else use the actual q_num passed in. 3868 */ 3869 static int 3870 __ice_set_coalesce(struct net_device *netdev, struct ethtool_coalesce *ec, 3871 int q_num) 3872 { 3873 struct ice_netdev_priv *np = netdev_priv(netdev); 3874 struct ice_vsi *vsi = np->vsi; 3875 3876 if (q_num < 0) { 3877 struct ice_q_vector *q_vector = vsi->q_vectors[0]; 3878 int v_idx; 3879 3880 if (q_vector) { 3881 ice_print_if_odd_usecs(netdev, q_vector->rx.itr_setting, 3882 ec->use_adaptive_rx_coalesce, 3883 ec->rx_coalesce_usecs, "rx"); 3884 3885 ice_print_if_odd_usecs(netdev, q_vector->tx.itr_setting, 3886 ec->use_adaptive_tx_coalesce, 3887 ec->tx_coalesce_usecs, "tx"); 3888 } 3889 3890 ice_for_each_q_vector(vsi, v_idx) { 3891 /* In some cases if DCB is configured the num_[rx|tx]q 3892 * can be less than vsi->num_q_vectors. This check 3893 * accounts for that so we don't report a false failure 3894 */ 3895 if (v_idx >= vsi->num_rxq && v_idx >= vsi->num_txq) 3896 goto set_complete; 3897 3898 if (ice_set_q_coalesce(vsi, ec, v_idx)) 3899 return -EINVAL; 3900 3901 ice_set_q_vector_intrl(vsi->q_vectors[v_idx]); 3902 } 3903 goto set_complete; 3904 } 3905 3906 if (ice_set_q_coalesce(vsi, ec, q_num)) 3907 return -EINVAL; 3908 3909 ice_set_q_vector_intrl(vsi->q_vectors[q_num]); 3910 3911 set_complete: 3912 return 0; 3913 } 3914 3915 static int ice_set_coalesce(struct net_device *netdev, 3916 struct ethtool_coalesce *ec, 3917 struct kernel_ethtool_coalesce *kernel_coal, 3918 struct netlink_ext_ack *extack) 3919 { 3920 return __ice_set_coalesce(netdev, ec, -1); 3921 } 3922 3923 static int 3924 ice_set_per_q_coalesce(struct net_device *netdev, u32 q_num, 3925 struct ethtool_coalesce *ec) 3926 { 3927 return __ice_set_coalesce(netdev, ec, q_num); 3928 } 3929 3930 static void 3931 ice_repr_get_drvinfo(struct net_device *netdev, 3932 struct ethtool_drvinfo *drvinfo) 3933 { 3934 struct ice_repr *repr = ice_netdev_to_repr(netdev); 3935 3936 if (ice_check_vf_ready_for_cfg(repr->vf)) 3937 return; 3938 3939 __ice_get_drvinfo(netdev, drvinfo, repr->src_vsi); 3940 } 3941 3942 static void 3943 ice_repr_get_strings(struct net_device *netdev, u32 stringset, u8 *data) 3944 { 3945 struct ice_repr *repr = ice_netdev_to_repr(netdev); 3946 3947 /* for port representors only ETH_SS_STATS is supported */ 3948 if (ice_check_vf_ready_for_cfg(repr->vf) || 3949 stringset != ETH_SS_STATS) 3950 return; 3951 3952 __ice_get_strings(netdev, stringset, data, repr->src_vsi); 3953 } 3954 3955 static void 3956 ice_repr_get_ethtool_stats(struct net_device *netdev, 3957 struct ethtool_stats __always_unused *stats, 3958 u64 *data) 3959 { 3960 struct ice_repr *repr = ice_netdev_to_repr(netdev); 3961 3962 if (ice_check_vf_ready_for_cfg(repr->vf)) 3963 return; 3964 3965 __ice_get_ethtool_stats(netdev, stats, data, repr->src_vsi); 3966 } 3967 3968 static int ice_repr_get_sset_count(struct net_device *netdev, int sset) 3969 { 3970 switch (sset) { 3971 case ETH_SS_STATS: 3972 return ICE_VSI_STATS_LEN; 3973 default: 3974 return -EOPNOTSUPP; 3975 } 3976 } 3977 3978 #define ICE_I2C_EEPROM_DEV_ADDR 0xA0 3979 #define ICE_I2C_EEPROM_DEV_ADDR2 0xA2 3980 #define ICE_MODULE_TYPE_SFP 0x03 3981 #define ICE_MODULE_TYPE_QSFP_PLUS 0x0D 3982 #define ICE_MODULE_TYPE_QSFP28 0x11 3983 #define ICE_MODULE_SFF_ADDR_MODE 0x04 3984 #define ICE_MODULE_SFF_DIAG_CAPAB 0x40 3985 #define ICE_MODULE_REVISION_ADDR 0x01 3986 #define ICE_MODULE_SFF_8472_COMP 0x5E 3987 #define ICE_MODULE_SFF_8472_SWAP 0x5C 3988 #define ICE_MODULE_QSFP_MAX_LEN 640 3989 3990 /** 3991 * ice_get_module_info - get SFF module type and revision information 3992 * @netdev: network interface device structure 3993 * @modinfo: module EEPROM size and layout information structure 3994 */ 3995 static int 3996 ice_get_module_info(struct net_device *netdev, 3997 struct ethtool_modinfo *modinfo) 3998 { 3999 struct ice_netdev_priv *np = netdev_priv(netdev); 4000 struct ice_vsi *vsi = np->vsi; 4001 struct ice_pf *pf = vsi->back; 4002 struct ice_hw *hw = &pf->hw; 4003 u8 sff8472_comp = 0; 4004 u8 sff8472_swap = 0; 4005 u8 sff8636_rev = 0; 4006 u8 value = 0; 4007 int status; 4008 4009 status = ice_aq_sff_eeprom(hw, 0, ICE_I2C_EEPROM_DEV_ADDR, 0x00, 0x00, 4010 0, &value, 1, 0, NULL); 4011 if (status) 4012 return status; 4013 4014 switch (value) { 4015 case ICE_MODULE_TYPE_SFP: 4016 status = ice_aq_sff_eeprom(hw, 0, ICE_I2C_EEPROM_DEV_ADDR, 4017 ICE_MODULE_SFF_8472_COMP, 0x00, 0, 4018 &sff8472_comp, 1, 0, NULL); 4019 if (status) 4020 return status; 4021 status = ice_aq_sff_eeprom(hw, 0, ICE_I2C_EEPROM_DEV_ADDR, 4022 ICE_MODULE_SFF_8472_SWAP, 0x00, 0, 4023 &sff8472_swap, 1, 0, NULL); 4024 if (status) 4025 return status; 4026 4027 if (sff8472_swap & ICE_MODULE_SFF_ADDR_MODE) { 4028 modinfo->type = ETH_MODULE_SFF_8079; 4029 modinfo->eeprom_len = ETH_MODULE_SFF_8079_LEN; 4030 } else if (sff8472_comp && 4031 (sff8472_swap & ICE_MODULE_SFF_DIAG_CAPAB)) { 4032 modinfo->type = ETH_MODULE_SFF_8472; 4033 modinfo->eeprom_len = ETH_MODULE_SFF_8472_LEN; 4034 } else { 4035 modinfo->type = ETH_MODULE_SFF_8079; 4036 modinfo->eeprom_len = ETH_MODULE_SFF_8079_LEN; 4037 } 4038 break; 4039 case ICE_MODULE_TYPE_QSFP_PLUS: 4040 case ICE_MODULE_TYPE_QSFP28: 4041 status = ice_aq_sff_eeprom(hw, 0, ICE_I2C_EEPROM_DEV_ADDR, 4042 ICE_MODULE_REVISION_ADDR, 0x00, 0, 4043 &sff8636_rev, 1, 0, NULL); 4044 if (status) 4045 return status; 4046 /* Check revision compliance */ 4047 if (sff8636_rev > 0x02) { 4048 /* Module is SFF-8636 compliant */ 4049 modinfo->type = ETH_MODULE_SFF_8636; 4050 modinfo->eeprom_len = ICE_MODULE_QSFP_MAX_LEN; 4051 } else { 4052 modinfo->type = ETH_MODULE_SFF_8436; 4053 modinfo->eeprom_len = ICE_MODULE_QSFP_MAX_LEN; 4054 } 4055 break; 4056 default: 4057 netdev_warn(netdev, "SFF Module Type not recognized.\n"); 4058 return -EINVAL; 4059 } 4060 return 0; 4061 } 4062 4063 /** 4064 * ice_get_module_eeprom - fill buffer with SFF EEPROM contents 4065 * @netdev: network interface device structure 4066 * @ee: EEPROM dump request structure 4067 * @data: buffer to be filled with EEPROM contents 4068 */ 4069 static int 4070 ice_get_module_eeprom(struct net_device *netdev, 4071 struct ethtool_eeprom *ee, u8 *data) 4072 { 4073 struct ice_netdev_priv *np = netdev_priv(netdev); 4074 #define SFF_READ_BLOCK_SIZE 8 4075 u8 value[SFF_READ_BLOCK_SIZE] = { 0 }; 4076 u8 addr = ICE_I2C_EEPROM_DEV_ADDR; 4077 struct ice_vsi *vsi = np->vsi; 4078 struct ice_pf *pf = vsi->back; 4079 struct ice_hw *hw = &pf->hw; 4080 bool is_sfp = false; 4081 unsigned int i, j; 4082 u16 offset = 0; 4083 u8 page = 0; 4084 int status; 4085 4086 if (!ee || !ee->len || !data) 4087 return -EINVAL; 4088 4089 status = ice_aq_sff_eeprom(hw, 0, addr, offset, page, 0, value, 1, 0, 4090 NULL); 4091 if (status) 4092 return status; 4093 4094 if (value[0] == ICE_MODULE_TYPE_SFP) 4095 is_sfp = true; 4096 4097 memset(data, 0, ee->len); 4098 for (i = 0; i < ee->len; i += SFF_READ_BLOCK_SIZE) { 4099 offset = i + ee->offset; 4100 page = 0; 4101 4102 /* Check if we need to access the other memory page */ 4103 if (is_sfp) { 4104 if (offset >= ETH_MODULE_SFF_8079_LEN) { 4105 offset -= ETH_MODULE_SFF_8079_LEN; 4106 addr = ICE_I2C_EEPROM_DEV_ADDR2; 4107 } 4108 } else { 4109 while (offset >= ETH_MODULE_SFF_8436_LEN) { 4110 /* Compute memory page number and offset. */ 4111 offset -= ETH_MODULE_SFF_8436_LEN / 2; 4112 page++; 4113 } 4114 } 4115 4116 /* Bit 2 of EEPROM address 0x02 declares upper 4117 * pages are disabled on QSFP modules. 4118 * SFP modules only ever use page 0. 4119 */ 4120 if (page == 0 || !(data[0x2] & 0x4)) { 4121 /* If i2c bus is busy due to slow page change or 4122 * link management access, call can fail. This is normal. 4123 * So we retry this a few times. 4124 */ 4125 for (j = 0; j < 4; j++) { 4126 status = ice_aq_sff_eeprom(hw, 0, addr, offset, page, 4127 !is_sfp, value, 4128 SFF_READ_BLOCK_SIZE, 4129 0, NULL); 4130 netdev_dbg(netdev, "SFF %02X %02X %02X %X = %02X%02X%02X%02X.%02X%02X%02X%02X (%X)\n", 4131 addr, offset, page, is_sfp, 4132 value[0], value[1], value[2], value[3], 4133 value[4], value[5], value[6], value[7], 4134 status); 4135 if (status) { 4136 usleep_range(1500, 2500); 4137 memset(value, 0, SFF_READ_BLOCK_SIZE); 4138 continue; 4139 } 4140 break; 4141 } 4142 4143 /* Make sure we have enough room for the new block */ 4144 if ((i + SFF_READ_BLOCK_SIZE) < ee->len) 4145 memcpy(data + i, value, SFF_READ_BLOCK_SIZE); 4146 } 4147 } 4148 return 0; 4149 } 4150 4151 static const struct ethtool_ops ice_ethtool_ops = { 4152 .supported_coalesce_params = ETHTOOL_COALESCE_USECS | 4153 ETHTOOL_COALESCE_USE_ADAPTIVE | 4154 ETHTOOL_COALESCE_RX_USECS_HIGH, 4155 .get_link_ksettings = ice_get_link_ksettings, 4156 .set_link_ksettings = ice_set_link_ksettings, 4157 .get_drvinfo = ice_get_drvinfo, 4158 .get_regs_len = ice_get_regs_len, 4159 .get_regs = ice_get_regs, 4160 .get_wol = ice_get_wol, 4161 .set_wol = ice_set_wol, 4162 .get_msglevel = ice_get_msglevel, 4163 .set_msglevel = ice_set_msglevel, 4164 .self_test = ice_self_test, 4165 .get_link = ethtool_op_get_link, 4166 .get_eeprom_len = ice_get_eeprom_len, 4167 .get_eeprom = ice_get_eeprom, 4168 .get_coalesce = ice_get_coalesce, 4169 .set_coalesce = ice_set_coalesce, 4170 .get_strings = ice_get_strings, 4171 .set_phys_id = ice_set_phys_id, 4172 .get_ethtool_stats = ice_get_ethtool_stats, 4173 .get_priv_flags = ice_get_priv_flags, 4174 .set_priv_flags = ice_set_priv_flags, 4175 .get_sset_count = ice_get_sset_count, 4176 .get_rxnfc = ice_get_rxnfc, 4177 .set_rxnfc = ice_set_rxnfc, 4178 .get_ringparam = ice_get_ringparam, 4179 .set_ringparam = ice_set_ringparam, 4180 .nway_reset = ice_nway_reset, 4181 .get_pauseparam = ice_get_pauseparam, 4182 .set_pauseparam = ice_set_pauseparam, 4183 .get_rxfh_key_size = ice_get_rxfh_key_size, 4184 .get_rxfh_indir_size = ice_get_rxfh_indir_size, 4185 .get_rxfh_context = ice_get_rxfh_context, 4186 .get_rxfh = ice_get_rxfh, 4187 .set_rxfh = ice_set_rxfh, 4188 .get_channels = ice_get_channels, 4189 .set_channels = ice_set_channels, 4190 .get_ts_info = ice_get_ts_info, 4191 .get_per_queue_coalesce = ice_get_per_q_coalesce, 4192 .set_per_queue_coalesce = ice_set_per_q_coalesce, 4193 .get_fecparam = ice_get_fecparam, 4194 .set_fecparam = ice_set_fecparam, 4195 .get_module_info = ice_get_module_info, 4196 .get_module_eeprom = ice_get_module_eeprom, 4197 }; 4198 4199 static const struct ethtool_ops ice_ethtool_safe_mode_ops = { 4200 .get_link_ksettings = ice_get_link_ksettings, 4201 .set_link_ksettings = ice_set_link_ksettings, 4202 .get_drvinfo = ice_get_drvinfo, 4203 .get_regs_len = ice_get_regs_len, 4204 .get_regs = ice_get_regs, 4205 .get_wol = ice_get_wol, 4206 .set_wol = ice_set_wol, 4207 .get_msglevel = ice_get_msglevel, 4208 .set_msglevel = ice_set_msglevel, 4209 .get_link = ethtool_op_get_link, 4210 .get_eeprom_len = ice_get_eeprom_len, 4211 .get_eeprom = ice_get_eeprom, 4212 .get_strings = ice_get_strings, 4213 .get_ethtool_stats = ice_get_ethtool_stats, 4214 .get_sset_count = ice_get_sset_count, 4215 .get_ringparam = ice_get_ringparam, 4216 .set_ringparam = ice_set_ringparam, 4217 .nway_reset = ice_nway_reset, 4218 .get_channels = ice_get_channels, 4219 }; 4220 4221 /** 4222 * ice_set_ethtool_safe_mode_ops - setup safe mode ethtool ops 4223 * @netdev: network interface device structure 4224 */ 4225 void ice_set_ethtool_safe_mode_ops(struct net_device *netdev) 4226 { 4227 netdev->ethtool_ops = &ice_ethtool_safe_mode_ops; 4228 } 4229 4230 static const struct ethtool_ops ice_ethtool_repr_ops = { 4231 .get_drvinfo = ice_repr_get_drvinfo, 4232 .get_link = ethtool_op_get_link, 4233 .get_strings = ice_repr_get_strings, 4234 .get_ethtool_stats = ice_repr_get_ethtool_stats, 4235 .get_sset_count = ice_repr_get_sset_count, 4236 }; 4237 4238 /** 4239 * ice_set_ethtool_repr_ops - setup VF's port representor ethtool ops 4240 * @netdev: network interface device structure 4241 */ 4242 void ice_set_ethtool_repr_ops(struct net_device *netdev) 4243 { 4244 netdev->ethtool_ops = &ice_ethtool_repr_ops; 4245 } 4246 4247 /** 4248 * ice_set_ethtool_ops - setup netdev ethtool ops 4249 * @netdev: network interface device structure 4250 * 4251 * setup netdev ethtool ops with ice specific ops 4252 */ 4253 void ice_set_ethtool_ops(struct net_device *netdev) 4254 { 4255 netdev->ethtool_ops = &ice_ethtool_ops; 4256 } 4257