1 /******************************************************************************* 2 * 3 * Intel Ethernet Controller XL710 Family Linux Driver 4 * Copyright(c) 2013 - 2014 Intel Corporation. 5 * 6 * This program is free software; you can redistribute it and/or modify it 7 * under the terms and conditions of the GNU General Public License, 8 * version 2, as published by the Free Software Foundation. 9 * 10 * This program is distributed in the hope it will be useful, but WITHOUT 11 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 12 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for 13 * more details. 14 * 15 * You should have received a copy of the GNU General Public License along 16 * with this program. If not, see <http://www.gnu.org/licenses/>. 17 * 18 * The full GNU General Public License is included in this distribution in 19 * the file called "COPYING". 20 * 21 * Contact Information: 22 * e1000-devel Mailing List <e1000-devel@lists.sourceforge.net> 23 * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 24 * 25 ******************************************************************************/ 26 27 /* ethtool support for i40e */ 28 29 #include "i40e.h" 30 #include "i40e_diag.h" 31 32 struct i40e_stats { 33 char stat_string[ETH_GSTRING_LEN]; 34 int sizeof_stat; 35 int stat_offset; 36 }; 37 38 #define I40E_STAT(_type, _name, _stat) { \ 39 .stat_string = _name, \ 40 .sizeof_stat = FIELD_SIZEOF(_type, _stat), \ 41 .stat_offset = offsetof(_type, _stat) \ 42 } 43 44 #define I40E_NETDEV_STAT(_net_stat) \ 45 I40E_STAT(struct rtnl_link_stats64, #_net_stat, _net_stat) 46 #define I40E_PF_STAT(_name, _stat) \ 47 I40E_STAT(struct i40e_pf, _name, _stat) 48 #define I40E_VSI_STAT(_name, _stat) \ 49 I40E_STAT(struct i40e_vsi, _name, _stat) 50 #define I40E_VEB_STAT(_name, _stat) \ 51 I40E_STAT(struct i40e_veb, _name, _stat) 52 53 static const struct i40e_stats i40e_gstrings_net_stats[] = { 54 I40E_NETDEV_STAT(rx_packets), 55 I40E_NETDEV_STAT(tx_packets), 56 I40E_NETDEV_STAT(rx_bytes), 57 I40E_NETDEV_STAT(tx_bytes), 58 I40E_NETDEV_STAT(rx_errors), 59 I40E_NETDEV_STAT(tx_errors), 60 I40E_NETDEV_STAT(rx_dropped), 61 I40E_NETDEV_STAT(tx_dropped), 62 I40E_NETDEV_STAT(collisions), 63 I40E_NETDEV_STAT(rx_length_errors), 64 I40E_NETDEV_STAT(rx_crc_errors), 65 }; 66 67 static const struct i40e_stats i40e_gstrings_veb_stats[] = { 68 I40E_VEB_STAT("rx_bytes", stats.rx_bytes), 69 I40E_VEB_STAT("tx_bytes", stats.tx_bytes), 70 I40E_VEB_STAT("rx_unicast", stats.rx_unicast), 71 I40E_VEB_STAT("tx_unicast", stats.tx_unicast), 72 I40E_VEB_STAT("rx_multicast", stats.rx_multicast), 73 I40E_VEB_STAT("tx_multicast", stats.tx_multicast), 74 I40E_VEB_STAT("rx_broadcast", stats.rx_broadcast), 75 I40E_VEB_STAT("tx_broadcast", stats.tx_broadcast), 76 I40E_VEB_STAT("rx_discards", stats.rx_discards), 77 I40E_VEB_STAT("tx_discards", stats.tx_discards), 78 I40E_VEB_STAT("tx_errors", stats.tx_errors), 79 I40E_VEB_STAT("rx_unknown_protocol", stats.rx_unknown_protocol), 80 }; 81 82 static const struct i40e_stats i40e_gstrings_misc_stats[] = { 83 I40E_VSI_STAT("rx_unicast", eth_stats.rx_unicast), 84 I40E_VSI_STAT("tx_unicast", eth_stats.tx_unicast), 85 I40E_VSI_STAT("rx_multicast", eth_stats.rx_multicast), 86 I40E_VSI_STAT("tx_multicast", eth_stats.tx_multicast), 87 I40E_VSI_STAT("rx_broadcast", eth_stats.rx_broadcast), 88 I40E_VSI_STAT("tx_broadcast", eth_stats.tx_broadcast), 89 I40E_VSI_STAT("rx_unknown_protocol", eth_stats.rx_unknown_protocol), 90 }; 91 92 static int i40e_add_fdir_ethtool(struct i40e_vsi *vsi, 93 struct ethtool_rxnfc *cmd); 94 95 /* These PF_STATs might look like duplicates of some NETDEV_STATs, 96 * but they are separate. This device supports Virtualization, and 97 * as such might have several netdevs supporting VMDq and FCoE going 98 * through a single port. The NETDEV_STATs are for individual netdevs 99 * seen at the top of the stack, and the PF_STATs are for the physical 100 * function at the bottom of the stack hosting those netdevs. 101 * 102 * The PF_STATs are appended to the netdev stats only when ethtool -S 103 * is queried on the base PF netdev, not on the VMDq or FCoE netdev. 104 */ 105 static struct i40e_stats i40e_gstrings_stats[] = { 106 I40E_PF_STAT("rx_bytes", stats.eth.rx_bytes), 107 I40E_PF_STAT("tx_bytes", stats.eth.tx_bytes), 108 I40E_PF_STAT("rx_unicast", stats.eth.rx_unicast), 109 I40E_PF_STAT("tx_unicast", stats.eth.tx_unicast), 110 I40E_PF_STAT("rx_multicast", stats.eth.rx_multicast), 111 I40E_PF_STAT("tx_multicast", stats.eth.tx_multicast), 112 I40E_PF_STAT("rx_broadcast", stats.eth.rx_broadcast), 113 I40E_PF_STAT("tx_broadcast", stats.eth.tx_broadcast), 114 I40E_PF_STAT("tx_errors", stats.eth.tx_errors), 115 I40E_PF_STAT("rx_dropped", stats.eth.rx_discards), 116 I40E_PF_STAT("tx_dropped", stats.eth.tx_discards), 117 I40E_PF_STAT("tx_dropped_link_down", stats.tx_dropped_link_down), 118 I40E_PF_STAT("crc_errors", stats.crc_errors), 119 I40E_PF_STAT("illegal_bytes", stats.illegal_bytes), 120 I40E_PF_STAT("mac_local_faults", stats.mac_local_faults), 121 I40E_PF_STAT("mac_remote_faults", stats.mac_remote_faults), 122 I40E_PF_STAT("tx_timeout", tx_timeout_count), 123 I40E_PF_STAT("rx_csum_bad", hw_csum_rx_error), 124 I40E_PF_STAT("rx_length_errors", stats.rx_length_errors), 125 I40E_PF_STAT("link_xon_rx", stats.link_xon_rx), 126 I40E_PF_STAT("link_xoff_rx", stats.link_xoff_rx), 127 I40E_PF_STAT("link_xon_tx", stats.link_xon_tx), 128 I40E_PF_STAT("link_xoff_tx", stats.link_xoff_tx), 129 I40E_PF_STAT("rx_size_64", stats.rx_size_64), 130 I40E_PF_STAT("rx_size_127", stats.rx_size_127), 131 I40E_PF_STAT("rx_size_255", stats.rx_size_255), 132 I40E_PF_STAT("rx_size_511", stats.rx_size_511), 133 I40E_PF_STAT("rx_size_1023", stats.rx_size_1023), 134 I40E_PF_STAT("rx_size_1522", stats.rx_size_1522), 135 I40E_PF_STAT("rx_size_big", stats.rx_size_big), 136 I40E_PF_STAT("tx_size_64", stats.tx_size_64), 137 I40E_PF_STAT("tx_size_127", stats.tx_size_127), 138 I40E_PF_STAT("tx_size_255", stats.tx_size_255), 139 I40E_PF_STAT("tx_size_511", stats.tx_size_511), 140 I40E_PF_STAT("tx_size_1023", stats.tx_size_1023), 141 I40E_PF_STAT("tx_size_1522", stats.tx_size_1522), 142 I40E_PF_STAT("tx_size_big", stats.tx_size_big), 143 I40E_PF_STAT("rx_undersize", stats.rx_undersize), 144 I40E_PF_STAT("rx_fragments", stats.rx_fragments), 145 I40E_PF_STAT("rx_oversize", stats.rx_oversize), 146 I40E_PF_STAT("rx_jabber", stats.rx_jabber), 147 I40E_PF_STAT("VF_admin_queue_requests", vf_aq_requests), 148 I40E_PF_STAT("rx_hwtstamp_cleared", rx_hwtstamp_cleared), 149 I40E_PF_STAT("fdir_flush_cnt", fd_flush_cnt), 150 I40E_PF_STAT("fdir_atr_match", stats.fd_atr_match), 151 I40E_PF_STAT("fdir_sb_match", stats.fd_sb_match), 152 153 /* LPI stats */ 154 I40E_PF_STAT("tx_lpi_status", stats.tx_lpi_status), 155 I40E_PF_STAT("rx_lpi_status", stats.rx_lpi_status), 156 I40E_PF_STAT("tx_lpi_count", stats.tx_lpi_count), 157 I40E_PF_STAT("rx_lpi_count", stats.rx_lpi_count), 158 }; 159 160 #ifdef I40E_FCOE 161 static const struct i40e_stats i40e_gstrings_fcoe_stats[] = { 162 I40E_VSI_STAT("fcoe_bad_fccrc", fcoe_stats.fcoe_bad_fccrc), 163 I40E_VSI_STAT("rx_fcoe_dropped", fcoe_stats.rx_fcoe_dropped), 164 I40E_VSI_STAT("rx_fcoe_packets", fcoe_stats.rx_fcoe_packets), 165 I40E_VSI_STAT("rx_fcoe_dwords", fcoe_stats.rx_fcoe_dwords), 166 I40E_VSI_STAT("fcoe_ddp_count", fcoe_stats.fcoe_ddp_count), 167 I40E_VSI_STAT("fcoe_last_error", fcoe_stats.fcoe_last_error), 168 I40E_VSI_STAT("tx_fcoe_packets", fcoe_stats.tx_fcoe_packets), 169 I40E_VSI_STAT("tx_fcoe_dwords", fcoe_stats.tx_fcoe_dwords), 170 }; 171 172 #endif /* I40E_FCOE */ 173 #define I40E_QUEUE_STATS_LEN(n) \ 174 (((struct i40e_netdev_priv *)netdev_priv((n)))->vsi->num_queue_pairs \ 175 * 2 /* Tx and Rx together */ \ 176 * (sizeof(struct i40e_queue_stats) / sizeof(u64))) 177 #define I40E_GLOBAL_STATS_LEN ARRAY_SIZE(i40e_gstrings_stats) 178 #define I40E_NETDEV_STATS_LEN ARRAY_SIZE(i40e_gstrings_net_stats) 179 #define I40E_MISC_STATS_LEN ARRAY_SIZE(i40e_gstrings_misc_stats) 180 #ifdef I40E_FCOE 181 #define I40E_FCOE_STATS_LEN ARRAY_SIZE(i40e_gstrings_fcoe_stats) 182 #define I40E_VSI_STATS_LEN(n) (I40E_NETDEV_STATS_LEN + \ 183 I40E_FCOE_STATS_LEN + \ 184 I40E_MISC_STATS_LEN + \ 185 I40E_QUEUE_STATS_LEN((n))) 186 #else 187 #define I40E_VSI_STATS_LEN(n) (I40E_NETDEV_STATS_LEN + \ 188 I40E_MISC_STATS_LEN + \ 189 I40E_QUEUE_STATS_LEN((n))) 190 #endif /* I40E_FCOE */ 191 #define I40E_PFC_STATS_LEN ( \ 192 (FIELD_SIZEOF(struct i40e_pf, stats.priority_xoff_rx) + \ 193 FIELD_SIZEOF(struct i40e_pf, stats.priority_xon_rx) + \ 194 FIELD_SIZEOF(struct i40e_pf, stats.priority_xoff_tx) + \ 195 FIELD_SIZEOF(struct i40e_pf, stats.priority_xon_tx) + \ 196 FIELD_SIZEOF(struct i40e_pf, stats.priority_xon_2_xoff)) \ 197 / sizeof(u64)) 198 #define I40E_VEB_STATS_LEN ARRAY_SIZE(i40e_gstrings_veb_stats) 199 #define I40E_PF_STATS_LEN(n) (I40E_GLOBAL_STATS_LEN + \ 200 I40E_PFC_STATS_LEN + \ 201 I40E_VSI_STATS_LEN((n))) 202 203 enum i40e_ethtool_test_id { 204 I40E_ETH_TEST_REG = 0, 205 I40E_ETH_TEST_EEPROM, 206 I40E_ETH_TEST_INTR, 207 I40E_ETH_TEST_LOOPBACK, 208 I40E_ETH_TEST_LINK, 209 }; 210 211 static const char i40e_gstrings_test[][ETH_GSTRING_LEN] = { 212 "Register test (offline)", 213 "Eeprom test (offline)", 214 "Interrupt test (offline)", 215 "Loopback test (offline)", 216 "Link test (on/offline)" 217 }; 218 219 #define I40E_TEST_LEN (sizeof(i40e_gstrings_test) / ETH_GSTRING_LEN) 220 221 /** 222 * i40e_partition_setting_complaint - generic complaint for MFP restriction 223 * @pf: the PF struct 224 **/ 225 static void i40e_partition_setting_complaint(struct i40e_pf *pf) 226 { 227 dev_info(&pf->pdev->dev, 228 "The link settings are allowed to be changed only from the first partition of a given port. Please switch to the first partition in order to change the setting.\n"); 229 } 230 231 /** 232 * i40e_get_settings - Get Link Speed and Duplex settings 233 * @netdev: network interface device structure 234 * @ecmd: ethtool command 235 * 236 * Reports speed/duplex settings based on media_type 237 **/ 238 static int i40e_get_settings(struct net_device *netdev, 239 struct ethtool_cmd *ecmd) 240 { 241 struct i40e_netdev_priv *np = netdev_priv(netdev); 242 struct i40e_pf *pf = np->vsi->back; 243 struct i40e_hw *hw = &pf->hw; 244 struct i40e_link_status *hw_link_info = &hw->phy.link_info; 245 bool link_up = hw_link_info->link_info & I40E_AQ_LINK_UP; 246 u32 link_speed = hw_link_info->link_speed; 247 248 /* hardware is either in 40G mode or 10G mode 249 * NOTE: this section initializes supported and advertising 250 */ 251 if (!link_up) { 252 /* link is down and the driver needs to fall back on 253 * device ID to determine what kinds of info to display, 254 * it's mostly a guess that may change when link is up 255 */ 256 switch (hw->device_id) { 257 case I40E_DEV_ID_QSFP_A: 258 case I40E_DEV_ID_QSFP_B: 259 case I40E_DEV_ID_QSFP_C: 260 /* pluggable QSFP */ 261 ecmd->supported = SUPPORTED_40000baseSR4_Full | 262 SUPPORTED_40000baseCR4_Full | 263 SUPPORTED_40000baseLR4_Full; 264 ecmd->advertising = ADVERTISED_40000baseSR4_Full | 265 ADVERTISED_40000baseCR4_Full | 266 ADVERTISED_40000baseLR4_Full; 267 break; 268 case I40E_DEV_ID_KX_B: 269 /* backplane 40G */ 270 ecmd->supported = SUPPORTED_40000baseKR4_Full; 271 ecmd->advertising = ADVERTISED_40000baseKR4_Full; 272 break; 273 case I40E_DEV_ID_KX_C: 274 /* backplane 10G */ 275 ecmd->supported = SUPPORTED_10000baseKR_Full; 276 ecmd->advertising = ADVERTISED_10000baseKR_Full; 277 break; 278 case I40E_DEV_ID_10G_BASE_T: 279 ecmd->supported = SUPPORTED_10000baseT_Full | 280 SUPPORTED_1000baseT_Full | 281 SUPPORTED_100baseT_Full; 282 ecmd->advertising = ADVERTISED_10000baseT_Full | 283 ADVERTISED_1000baseT_Full | 284 ADVERTISED_100baseT_Full; 285 break; 286 default: 287 /* all the rest are 10G/1G */ 288 ecmd->supported = SUPPORTED_10000baseT_Full | 289 SUPPORTED_1000baseT_Full; 290 ecmd->advertising = ADVERTISED_10000baseT_Full | 291 ADVERTISED_1000baseT_Full; 292 break; 293 } 294 295 /* skip phy_type use as it is zero when link is down */ 296 goto no_valid_phy_type; 297 } 298 299 switch (hw_link_info->phy_type) { 300 case I40E_PHY_TYPE_40GBASE_CR4: 301 case I40E_PHY_TYPE_40GBASE_CR4_CU: 302 ecmd->supported = SUPPORTED_Autoneg | 303 SUPPORTED_40000baseCR4_Full; 304 ecmd->advertising = ADVERTISED_Autoneg | 305 ADVERTISED_40000baseCR4_Full; 306 break; 307 case I40E_PHY_TYPE_40GBASE_KR4: 308 ecmd->supported = SUPPORTED_Autoneg | 309 SUPPORTED_40000baseKR4_Full; 310 ecmd->advertising = ADVERTISED_Autoneg | 311 ADVERTISED_40000baseKR4_Full; 312 break; 313 case I40E_PHY_TYPE_40GBASE_SR4: 314 case I40E_PHY_TYPE_XLPPI: 315 case I40E_PHY_TYPE_XLAUI: 316 ecmd->supported = SUPPORTED_40000baseSR4_Full; 317 break; 318 case I40E_PHY_TYPE_40GBASE_LR4: 319 ecmd->supported = SUPPORTED_40000baseLR4_Full; 320 break; 321 case I40E_PHY_TYPE_10GBASE_KX4: 322 ecmd->supported = SUPPORTED_Autoneg | 323 SUPPORTED_10000baseKX4_Full; 324 ecmd->advertising = ADVERTISED_Autoneg | 325 ADVERTISED_10000baseKX4_Full; 326 break; 327 case I40E_PHY_TYPE_10GBASE_KR: 328 ecmd->supported = SUPPORTED_Autoneg | 329 SUPPORTED_10000baseKR_Full; 330 ecmd->advertising = ADVERTISED_Autoneg | 331 ADVERTISED_10000baseKR_Full; 332 break; 333 case I40E_PHY_TYPE_10GBASE_SR: 334 case I40E_PHY_TYPE_10GBASE_LR: 335 case I40E_PHY_TYPE_1000BASE_SX: 336 case I40E_PHY_TYPE_1000BASE_LX: 337 ecmd->supported = SUPPORTED_10000baseT_Full; 338 ecmd->supported |= SUPPORTED_1000baseT_Full; 339 break; 340 case I40E_PHY_TYPE_10GBASE_CR1_CU: 341 case I40E_PHY_TYPE_10GBASE_CR1: 342 case I40E_PHY_TYPE_10GBASE_T: 343 ecmd->supported = SUPPORTED_Autoneg | 344 SUPPORTED_10000baseT_Full | 345 SUPPORTED_1000baseT_Full | 346 SUPPORTED_100baseT_Full; 347 ecmd->advertising = ADVERTISED_Autoneg | 348 ADVERTISED_10000baseT_Full | 349 ADVERTISED_1000baseT_Full | 350 ADVERTISED_100baseT_Full; 351 break; 352 case I40E_PHY_TYPE_XAUI: 353 case I40E_PHY_TYPE_XFI: 354 case I40E_PHY_TYPE_SFI: 355 case I40E_PHY_TYPE_10GBASE_SFPP_CU: 356 ecmd->supported = SUPPORTED_10000baseT_Full; 357 break; 358 case I40E_PHY_TYPE_1000BASE_KX: 359 case I40E_PHY_TYPE_1000BASE_T: 360 ecmd->supported = SUPPORTED_Autoneg | 361 SUPPORTED_10000baseT_Full | 362 SUPPORTED_1000baseT_Full | 363 SUPPORTED_100baseT_Full; 364 ecmd->advertising = ADVERTISED_Autoneg | 365 ADVERTISED_10000baseT_Full | 366 ADVERTISED_1000baseT_Full | 367 ADVERTISED_100baseT_Full; 368 break; 369 case I40E_PHY_TYPE_100BASE_TX: 370 ecmd->supported = SUPPORTED_Autoneg | 371 SUPPORTED_10000baseT_Full | 372 SUPPORTED_1000baseT_Full | 373 SUPPORTED_100baseT_Full; 374 ecmd->advertising = ADVERTISED_Autoneg | 375 ADVERTISED_10000baseT_Full | 376 ADVERTISED_1000baseT_Full | 377 ADVERTISED_100baseT_Full; 378 break; 379 case I40E_PHY_TYPE_SGMII: 380 ecmd->supported = SUPPORTED_Autoneg | 381 SUPPORTED_1000baseT_Full | 382 SUPPORTED_100baseT_Full; 383 ecmd->advertising = ADVERTISED_Autoneg | 384 ADVERTISED_1000baseT_Full | 385 ADVERTISED_100baseT_Full; 386 break; 387 default: 388 /* if we got here and link is up something bad is afoot */ 389 netdev_info(netdev, "WARNING: Link is up but PHY type 0x%x is not recognized.\n", 390 hw_link_info->phy_type); 391 } 392 393 no_valid_phy_type: 394 /* this is if autoneg is enabled or disabled */ 395 ecmd->autoneg = ((hw_link_info->an_info & I40E_AQ_AN_COMPLETED) ? 396 AUTONEG_ENABLE : AUTONEG_DISABLE); 397 398 switch (hw->phy.media_type) { 399 case I40E_MEDIA_TYPE_BACKPLANE: 400 ecmd->supported |= SUPPORTED_Autoneg | 401 SUPPORTED_Backplane; 402 ecmd->advertising |= ADVERTISED_Autoneg | 403 ADVERTISED_Backplane; 404 ecmd->port = PORT_NONE; 405 break; 406 case I40E_MEDIA_TYPE_BASET: 407 ecmd->supported |= SUPPORTED_TP; 408 ecmd->advertising |= ADVERTISED_TP; 409 ecmd->port = PORT_TP; 410 break; 411 case I40E_MEDIA_TYPE_DA: 412 case I40E_MEDIA_TYPE_CX4: 413 ecmd->supported |= SUPPORTED_FIBRE; 414 ecmd->advertising |= ADVERTISED_FIBRE; 415 ecmd->port = PORT_DA; 416 break; 417 case I40E_MEDIA_TYPE_FIBER: 418 ecmd->supported |= SUPPORTED_FIBRE; 419 ecmd->port = PORT_FIBRE; 420 break; 421 case I40E_MEDIA_TYPE_UNKNOWN: 422 default: 423 ecmd->port = PORT_OTHER; 424 break; 425 } 426 427 ecmd->transceiver = XCVR_EXTERNAL; 428 429 ecmd->supported |= SUPPORTED_Pause; 430 431 switch (hw->fc.current_mode) { 432 case I40E_FC_FULL: 433 ecmd->advertising |= ADVERTISED_Pause; 434 break; 435 case I40E_FC_TX_PAUSE: 436 ecmd->advertising |= ADVERTISED_Asym_Pause; 437 break; 438 case I40E_FC_RX_PAUSE: 439 ecmd->advertising |= (ADVERTISED_Pause | 440 ADVERTISED_Asym_Pause); 441 break; 442 default: 443 ecmd->advertising &= ~(ADVERTISED_Pause | 444 ADVERTISED_Asym_Pause); 445 break; 446 } 447 448 if (link_up) { 449 switch (link_speed) { 450 case I40E_LINK_SPEED_40GB: 451 /* need a SPEED_40000 in ethtool.h */ 452 ethtool_cmd_speed_set(ecmd, 40000); 453 break; 454 case I40E_LINK_SPEED_10GB: 455 ethtool_cmd_speed_set(ecmd, SPEED_10000); 456 break; 457 case I40E_LINK_SPEED_1GB: 458 ethtool_cmd_speed_set(ecmd, SPEED_1000); 459 break; 460 case I40E_LINK_SPEED_100MB: 461 ethtool_cmd_speed_set(ecmd, SPEED_100); 462 break; 463 default: 464 break; 465 } 466 ecmd->duplex = DUPLEX_FULL; 467 } else { 468 ethtool_cmd_speed_set(ecmd, SPEED_UNKNOWN); 469 ecmd->duplex = DUPLEX_UNKNOWN; 470 } 471 472 return 0; 473 } 474 475 /** 476 * i40e_set_settings - Set Speed and Duplex 477 * @netdev: network interface device structure 478 * @ecmd: ethtool command 479 * 480 * Set speed/duplex per media_types advertised/forced 481 **/ 482 static int i40e_set_settings(struct net_device *netdev, 483 struct ethtool_cmd *ecmd) 484 { 485 struct i40e_netdev_priv *np = netdev_priv(netdev); 486 struct i40e_aq_get_phy_abilities_resp abilities; 487 struct i40e_aq_set_phy_config config; 488 struct i40e_pf *pf = np->vsi->back; 489 struct i40e_vsi *vsi = np->vsi; 490 struct i40e_hw *hw = &pf->hw; 491 struct ethtool_cmd safe_ecmd; 492 i40e_status status = 0; 493 bool change = false; 494 int err = 0; 495 u8 autoneg; 496 u32 advertise; 497 498 /* Changing port settings is not supported if this isn't the 499 * port's controlling PF 500 */ 501 if (hw->partition_id != 1) { 502 i40e_partition_setting_complaint(pf); 503 return -EOPNOTSUPP; 504 } 505 506 if (vsi != pf->vsi[pf->lan_vsi]) 507 return -EOPNOTSUPP; 508 509 if (hw->phy.media_type != I40E_MEDIA_TYPE_BASET && 510 hw->phy.media_type != I40E_MEDIA_TYPE_FIBER && 511 hw->phy.media_type != I40E_MEDIA_TYPE_BACKPLANE && 512 hw->phy.link_info.link_info & I40E_AQ_LINK_UP) 513 return -EOPNOTSUPP; 514 515 /* get our own copy of the bits to check against */ 516 memset(&safe_ecmd, 0, sizeof(struct ethtool_cmd)); 517 i40e_get_settings(netdev, &safe_ecmd); 518 519 /* save autoneg and speed out of ecmd */ 520 autoneg = ecmd->autoneg; 521 advertise = ecmd->advertising; 522 523 /* set autoneg and speed back to what they currently are */ 524 ecmd->autoneg = safe_ecmd.autoneg; 525 ecmd->advertising = safe_ecmd.advertising; 526 527 ecmd->cmd = safe_ecmd.cmd; 528 /* If ecmd and safe_ecmd are not the same now, then they are 529 * trying to set something that we do not support 530 */ 531 if (memcmp(ecmd, &safe_ecmd, sizeof(struct ethtool_cmd))) 532 return -EOPNOTSUPP; 533 534 while (test_bit(__I40E_CONFIG_BUSY, &vsi->state)) 535 usleep_range(1000, 2000); 536 537 /* Get the current phy config */ 538 status = i40e_aq_get_phy_capabilities(hw, false, false, &abilities, 539 NULL); 540 if (status) 541 return -EAGAIN; 542 543 /* Copy abilities to config in case autoneg is not 544 * set below 545 */ 546 memset(&config, 0, sizeof(struct i40e_aq_set_phy_config)); 547 config.abilities = abilities.abilities; 548 549 /* Check autoneg */ 550 if (autoneg == AUTONEG_ENABLE) { 551 /* If autoneg is not supported, return error */ 552 if (!(safe_ecmd.supported & SUPPORTED_Autoneg)) { 553 netdev_info(netdev, "Autoneg not supported on this phy\n"); 554 return -EINVAL; 555 } 556 /* If autoneg was not already enabled */ 557 if (!(hw->phy.link_info.an_info & I40E_AQ_AN_COMPLETED)) { 558 config.abilities = abilities.abilities | 559 I40E_AQ_PHY_ENABLE_AN; 560 change = true; 561 } 562 } else { 563 /* If autoneg is supported 10GBASE_T is the only phy that 564 * can disable it, so otherwise return error 565 */ 566 if (safe_ecmd.supported & SUPPORTED_Autoneg && 567 hw->phy.link_info.phy_type != I40E_PHY_TYPE_10GBASE_T) { 568 netdev_info(netdev, "Autoneg cannot be disabled on this phy\n"); 569 return -EINVAL; 570 } 571 /* If autoneg is currently enabled */ 572 if (hw->phy.link_info.an_info & I40E_AQ_AN_COMPLETED) { 573 config.abilities = abilities.abilities & 574 ~I40E_AQ_PHY_ENABLE_AN; 575 change = true; 576 } 577 } 578 579 if (advertise & ~safe_ecmd.supported) 580 return -EINVAL; 581 582 if (advertise & ADVERTISED_100baseT_Full) 583 config.link_speed |= I40E_LINK_SPEED_100MB; 584 if (advertise & ADVERTISED_1000baseT_Full || 585 advertise & ADVERTISED_1000baseKX_Full) 586 config.link_speed |= I40E_LINK_SPEED_1GB; 587 if (advertise & ADVERTISED_10000baseT_Full || 588 advertise & ADVERTISED_10000baseKX4_Full || 589 advertise & ADVERTISED_10000baseKR_Full) 590 config.link_speed |= I40E_LINK_SPEED_10GB; 591 if (advertise & ADVERTISED_40000baseKR4_Full || 592 advertise & ADVERTISED_40000baseCR4_Full || 593 advertise & ADVERTISED_40000baseSR4_Full || 594 advertise & ADVERTISED_40000baseLR4_Full) 595 config.link_speed |= I40E_LINK_SPEED_40GB; 596 597 if (change || (abilities.link_speed != config.link_speed)) { 598 /* copy over the rest of the abilities */ 599 config.phy_type = abilities.phy_type; 600 config.eee_capability = abilities.eee_capability; 601 config.eeer = abilities.eeer_val; 602 config.low_power_ctrl = abilities.d3_lpan; 603 604 /* set link and auto negotiation so changes take effect */ 605 config.abilities |= I40E_AQ_PHY_ENABLE_ATOMIC_LINK; 606 /* If link is up put link down */ 607 if (hw->phy.link_info.link_info & I40E_AQ_LINK_UP) { 608 /* Tell the OS link is going down, the link will go 609 * back up when fw says it is ready asynchronously 610 */ 611 netdev_info(netdev, "PHY settings change requested, NIC Link is going down.\n"); 612 netif_carrier_off(netdev); 613 netif_tx_stop_all_queues(netdev); 614 } 615 616 /* make the aq call */ 617 status = i40e_aq_set_phy_config(hw, &config, NULL); 618 if (status) { 619 netdev_info(netdev, "Set phy config failed with error %d.\n", 620 status); 621 return -EAGAIN; 622 } 623 624 status = i40e_update_link_info(hw, true); 625 if (status) 626 netdev_info(netdev, "Updating link info failed with error %d\n", 627 status); 628 629 } else { 630 netdev_info(netdev, "Nothing changed, exiting without setting anything.\n"); 631 } 632 633 return err; 634 } 635 636 static int i40e_nway_reset(struct net_device *netdev) 637 { 638 /* restart autonegotiation */ 639 struct i40e_netdev_priv *np = netdev_priv(netdev); 640 struct i40e_pf *pf = np->vsi->back; 641 struct i40e_hw *hw = &pf->hw; 642 bool link_up = hw->phy.link_info.link_info & I40E_AQ_LINK_UP; 643 i40e_status ret = 0; 644 645 ret = i40e_aq_set_link_restart_an(hw, link_up, NULL); 646 if (ret) { 647 netdev_info(netdev, "link restart failed, aq_err=%d\n", 648 pf->hw.aq.asq_last_status); 649 return -EIO; 650 } 651 652 return 0; 653 } 654 655 /** 656 * i40e_get_pauseparam - Get Flow Control status 657 * Return tx/rx-pause status 658 **/ 659 static void i40e_get_pauseparam(struct net_device *netdev, 660 struct ethtool_pauseparam *pause) 661 { 662 struct i40e_netdev_priv *np = netdev_priv(netdev); 663 struct i40e_pf *pf = np->vsi->back; 664 struct i40e_hw *hw = &pf->hw; 665 struct i40e_link_status *hw_link_info = &hw->phy.link_info; 666 struct i40e_dcbx_config *dcbx_cfg = &hw->local_dcbx_config; 667 668 pause->autoneg = 669 ((hw_link_info->an_info & I40E_AQ_AN_COMPLETED) ? 670 AUTONEG_ENABLE : AUTONEG_DISABLE); 671 672 /* PFC enabled so report LFC as off */ 673 if (dcbx_cfg->pfc.pfcenable) { 674 pause->rx_pause = 0; 675 pause->tx_pause = 0; 676 return; 677 } 678 679 if (hw->fc.current_mode == I40E_FC_RX_PAUSE) { 680 pause->rx_pause = 1; 681 } else if (hw->fc.current_mode == I40E_FC_TX_PAUSE) { 682 pause->tx_pause = 1; 683 } else if (hw->fc.current_mode == I40E_FC_FULL) { 684 pause->rx_pause = 1; 685 pause->tx_pause = 1; 686 } 687 } 688 689 /** 690 * i40e_set_pauseparam - Set Flow Control parameter 691 * @netdev: network interface device structure 692 * @pause: return tx/rx flow control status 693 **/ 694 static int i40e_set_pauseparam(struct net_device *netdev, 695 struct ethtool_pauseparam *pause) 696 { 697 struct i40e_netdev_priv *np = netdev_priv(netdev); 698 struct i40e_pf *pf = np->vsi->back; 699 struct i40e_vsi *vsi = np->vsi; 700 struct i40e_hw *hw = &pf->hw; 701 struct i40e_link_status *hw_link_info = &hw->phy.link_info; 702 struct i40e_dcbx_config *dcbx_cfg = &hw->local_dcbx_config; 703 bool link_up = hw_link_info->link_info & I40E_AQ_LINK_UP; 704 i40e_status status; 705 u8 aq_failures; 706 int err = 0; 707 708 /* Changing the port's flow control is not supported if this isn't the 709 * port's controlling PF 710 */ 711 if (hw->partition_id != 1) { 712 i40e_partition_setting_complaint(pf); 713 return -EOPNOTSUPP; 714 } 715 716 if (vsi != pf->vsi[pf->lan_vsi]) 717 return -EOPNOTSUPP; 718 719 if (pause->autoneg != ((hw_link_info->an_info & I40E_AQ_AN_COMPLETED) ? 720 AUTONEG_ENABLE : AUTONEG_DISABLE)) { 721 netdev_info(netdev, "To change autoneg please use: ethtool -s <dev> autoneg <on|off>\n"); 722 return -EOPNOTSUPP; 723 } 724 725 /* If we have link and don't have autoneg */ 726 if (!test_bit(__I40E_DOWN, &pf->state) && 727 !(hw_link_info->an_info & I40E_AQ_AN_COMPLETED)) { 728 /* Send message that it might not necessarily work*/ 729 netdev_info(netdev, "Autoneg did not complete so changing settings may not result in an actual change.\n"); 730 } 731 732 if (dcbx_cfg->pfc.pfcenable) { 733 netdev_info(netdev, 734 "Priority flow control enabled. Cannot set link flow control.\n"); 735 return -EOPNOTSUPP; 736 } 737 738 if (pause->rx_pause && pause->tx_pause) 739 hw->fc.requested_mode = I40E_FC_FULL; 740 else if (pause->rx_pause && !pause->tx_pause) 741 hw->fc.requested_mode = I40E_FC_RX_PAUSE; 742 else if (!pause->rx_pause && pause->tx_pause) 743 hw->fc.requested_mode = I40E_FC_TX_PAUSE; 744 else if (!pause->rx_pause && !pause->tx_pause) 745 hw->fc.requested_mode = I40E_FC_NONE; 746 else 747 return -EINVAL; 748 749 /* Tell the OS link is going down, the link will go back up when fw 750 * says it is ready asynchronously 751 */ 752 netdev_info(netdev, "Flow control settings change requested, NIC Link is going down.\n"); 753 netif_carrier_off(netdev); 754 netif_tx_stop_all_queues(netdev); 755 756 /* Set the fc mode and only restart an if link is up*/ 757 status = i40e_set_fc(hw, &aq_failures, link_up); 758 759 if (aq_failures & I40E_SET_FC_AQ_FAIL_GET) { 760 netdev_info(netdev, "Set fc failed on the get_phy_capabilities call with error %d and status %d\n", 761 status, hw->aq.asq_last_status); 762 err = -EAGAIN; 763 } 764 if (aq_failures & I40E_SET_FC_AQ_FAIL_SET) { 765 netdev_info(netdev, "Set fc failed on the set_phy_config call with error %d and status %d\n", 766 status, hw->aq.asq_last_status); 767 err = -EAGAIN; 768 } 769 if (aq_failures & I40E_SET_FC_AQ_FAIL_UPDATE) { 770 netdev_info(netdev, "Set fc failed on the update_link_info call with error %d and status %d\n", 771 status, hw->aq.asq_last_status); 772 err = -EAGAIN; 773 } 774 775 if (!test_bit(__I40E_DOWN, &pf->state)) { 776 /* Give it a little more time to try to come back */ 777 msleep(75); 778 if (!test_bit(__I40E_DOWN, &pf->state)) 779 return i40e_nway_reset(netdev); 780 } 781 782 return err; 783 } 784 785 static u32 i40e_get_msglevel(struct net_device *netdev) 786 { 787 struct i40e_netdev_priv *np = netdev_priv(netdev); 788 struct i40e_pf *pf = np->vsi->back; 789 790 return pf->msg_enable; 791 } 792 793 static void i40e_set_msglevel(struct net_device *netdev, u32 data) 794 { 795 struct i40e_netdev_priv *np = netdev_priv(netdev); 796 struct i40e_pf *pf = np->vsi->back; 797 798 if (I40E_DEBUG_USER & data) 799 pf->hw.debug_mask = data; 800 pf->msg_enable = data; 801 } 802 803 static int i40e_get_regs_len(struct net_device *netdev) 804 { 805 int reg_count = 0; 806 int i; 807 808 for (i = 0; i40e_reg_list[i].offset != 0; i++) 809 reg_count += i40e_reg_list[i].elements; 810 811 return reg_count * sizeof(u32); 812 } 813 814 static void i40e_get_regs(struct net_device *netdev, struct ethtool_regs *regs, 815 void *p) 816 { 817 struct i40e_netdev_priv *np = netdev_priv(netdev); 818 struct i40e_pf *pf = np->vsi->back; 819 struct i40e_hw *hw = &pf->hw; 820 u32 *reg_buf = p; 821 int i, j, ri; 822 u32 reg; 823 824 /* Tell ethtool which driver-version-specific regs output we have. 825 * 826 * At some point, if we have ethtool doing special formatting of 827 * this data, it will rely on this version number to know how to 828 * interpret things. Hence, this needs to be updated if/when the 829 * diags register table is changed. 830 */ 831 regs->version = 1; 832 833 /* loop through the diags reg table for what to print */ 834 ri = 0; 835 for (i = 0; i40e_reg_list[i].offset != 0; i++) { 836 for (j = 0; j < i40e_reg_list[i].elements; j++) { 837 reg = i40e_reg_list[i].offset 838 + (j * i40e_reg_list[i].stride); 839 reg_buf[ri++] = rd32(hw, reg); 840 } 841 } 842 843 } 844 845 static int i40e_get_eeprom(struct net_device *netdev, 846 struct ethtool_eeprom *eeprom, u8 *bytes) 847 { 848 struct i40e_netdev_priv *np = netdev_priv(netdev); 849 struct i40e_hw *hw = &np->vsi->back->hw; 850 struct i40e_pf *pf = np->vsi->back; 851 int ret_val = 0, len, offset; 852 u8 *eeprom_buff; 853 u16 i, sectors; 854 bool last; 855 u32 magic; 856 857 #define I40E_NVM_SECTOR_SIZE 4096 858 if (eeprom->len == 0) 859 return -EINVAL; 860 861 /* check for NVMUpdate access method */ 862 magic = hw->vendor_id | (hw->device_id << 16); 863 if (eeprom->magic && eeprom->magic != magic) { 864 struct i40e_nvm_access *cmd; 865 int errno; 866 867 /* make sure it is the right magic for NVMUpdate */ 868 if ((eeprom->magic >> 16) != hw->device_id) 869 return -EINVAL; 870 871 cmd = (struct i40e_nvm_access *)eeprom; 872 ret_val = i40e_nvmupd_command(hw, cmd, bytes, &errno); 873 if (ret_val) 874 dev_info(&pf->pdev->dev, 875 "NVMUpdate read failed err=%d status=0x%x errno=%d module=%d offset=0x%x size=%d\n", 876 ret_val, hw->aq.asq_last_status, errno, 877 (u8)(cmd->config & I40E_NVM_MOD_PNT_MASK), 878 cmd->offset, cmd->data_size); 879 880 return errno; 881 } 882 883 /* normal ethtool get_eeprom support */ 884 eeprom->magic = hw->vendor_id | (hw->device_id << 16); 885 886 eeprom_buff = kzalloc(eeprom->len, GFP_KERNEL); 887 if (!eeprom_buff) 888 return -ENOMEM; 889 890 ret_val = i40e_acquire_nvm(hw, I40E_RESOURCE_READ); 891 if (ret_val) { 892 dev_info(&pf->pdev->dev, 893 "Failed Acquiring NVM resource for read err=%d status=0x%x\n", 894 ret_val, hw->aq.asq_last_status); 895 goto free_buff; 896 } 897 898 sectors = eeprom->len / I40E_NVM_SECTOR_SIZE; 899 sectors += (eeprom->len % I40E_NVM_SECTOR_SIZE) ? 1 : 0; 900 len = I40E_NVM_SECTOR_SIZE; 901 last = false; 902 for (i = 0; i < sectors; i++) { 903 if (i == (sectors - 1)) { 904 len = eeprom->len - (I40E_NVM_SECTOR_SIZE * i); 905 last = true; 906 } 907 offset = eeprom->offset + (I40E_NVM_SECTOR_SIZE * i), 908 ret_val = i40e_aq_read_nvm(hw, 0x0, offset, len, 909 (u8 *)eeprom_buff + (I40E_NVM_SECTOR_SIZE * i), 910 last, NULL); 911 if (ret_val && hw->aq.asq_last_status == I40E_AQ_RC_EPERM) { 912 dev_info(&pf->pdev->dev, 913 "read NVM failed, invalid offset 0x%x\n", 914 offset); 915 break; 916 } else if (ret_val && 917 hw->aq.asq_last_status == I40E_AQ_RC_EACCES) { 918 dev_info(&pf->pdev->dev, 919 "read NVM failed, access, offset 0x%x\n", 920 offset); 921 break; 922 } else if (ret_val) { 923 dev_info(&pf->pdev->dev, 924 "read NVM failed offset %d err=%d status=0x%x\n", 925 offset, ret_val, hw->aq.asq_last_status); 926 break; 927 } 928 } 929 930 i40e_release_nvm(hw); 931 memcpy(bytes, (u8 *)eeprom_buff, eeprom->len); 932 free_buff: 933 kfree(eeprom_buff); 934 return ret_val; 935 } 936 937 static int i40e_get_eeprom_len(struct net_device *netdev) 938 { 939 struct i40e_netdev_priv *np = netdev_priv(netdev); 940 struct i40e_hw *hw = &np->vsi->back->hw; 941 u32 val; 942 943 val = (rd32(hw, I40E_GLPCI_LBARCTRL) 944 & I40E_GLPCI_LBARCTRL_FL_SIZE_MASK) 945 >> I40E_GLPCI_LBARCTRL_FL_SIZE_SHIFT; 946 /* register returns value in power of 2, 64Kbyte chunks. */ 947 val = (64 * 1024) * (1 << val); 948 return val; 949 } 950 951 static int i40e_set_eeprom(struct net_device *netdev, 952 struct ethtool_eeprom *eeprom, u8 *bytes) 953 { 954 struct i40e_netdev_priv *np = netdev_priv(netdev); 955 struct i40e_hw *hw = &np->vsi->back->hw; 956 struct i40e_pf *pf = np->vsi->back; 957 struct i40e_nvm_access *cmd; 958 int ret_val = 0; 959 int errno; 960 u32 magic; 961 962 /* normal ethtool set_eeprom is not supported */ 963 magic = hw->vendor_id | (hw->device_id << 16); 964 if (eeprom->magic == magic) 965 return -EOPNOTSUPP; 966 967 /* check for NVMUpdate access method */ 968 if (!eeprom->magic || (eeprom->magic >> 16) != hw->device_id) 969 return -EINVAL; 970 971 if (test_bit(__I40E_RESET_RECOVERY_PENDING, &pf->state) || 972 test_bit(__I40E_RESET_INTR_RECEIVED, &pf->state)) 973 return -EBUSY; 974 975 cmd = (struct i40e_nvm_access *)eeprom; 976 ret_val = i40e_nvmupd_command(hw, cmd, bytes, &errno); 977 if (ret_val && hw->aq.asq_last_status != I40E_AQ_RC_EBUSY) 978 dev_info(&pf->pdev->dev, 979 "NVMUpdate write failed err=%d status=0x%x errno=%d module=%d offset=0x%x size=%d\n", 980 ret_val, hw->aq.asq_last_status, errno, 981 (u8)(cmd->config & I40E_NVM_MOD_PNT_MASK), 982 cmd->offset, cmd->data_size); 983 984 return errno; 985 } 986 987 static void i40e_get_drvinfo(struct net_device *netdev, 988 struct ethtool_drvinfo *drvinfo) 989 { 990 struct i40e_netdev_priv *np = netdev_priv(netdev); 991 struct i40e_vsi *vsi = np->vsi; 992 struct i40e_pf *pf = vsi->back; 993 994 strlcpy(drvinfo->driver, i40e_driver_name, sizeof(drvinfo->driver)); 995 strlcpy(drvinfo->version, i40e_driver_version_str, 996 sizeof(drvinfo->version)); 997 strlcpy(drvinfo->fw_version, i40e_fw_version_str(&pf->hw), 998 sizeof(drvinfo->fw_version)); 999 strlcpy(drvinfo->bus_info, pci_name(pf->pdev), 1000 sizeof(drvinfo->bus_info)); 1001 } 1002 1003 static void i40e_get_ringparam(struct net_device *netdev, 1004 struct ethtool_ringparam *ring) 1005 { 1006 struct i40e_netdev_priv *np = netdev_priv(netdev); 1007 struct i40e_pf *pf = np->vsi->back; 1008 struct i40e_vsi *vsi = pf->vsi[pf->lan_vsi]; 1009 1010 ring->rx_max_pending = I40E_MAX_NUM_DESCRIPTORS; 1011 ring->tx_max_pending = I40E_MAX_NUM_DESCRIPTORS; 1012 ring->rx_mini_max_pending = 0; 1013 ring->rx_jumbo_max_pending = 0; 1014 ring->rx_pending = vsi->rx_rings[0]->count; 1015 ring->tx_pending = vsi->tx_rings[0]->count; 1016 ring->rx_mini_pending = 0; 1017 ring->rx_jumbo_pending = 0; 1018 } 1019 1020 static int i40e_set_ringparam(struct net_device *netdev, 1021 struct ethtool_ringparam *ring) 1022 { 1023 struct i40e_ring *tx_rings = NULL, *rx_rings = NULL; 1024 struct i40e_netdev_priv *np = netdev_priv(netdev); 1025 struct i40e_vsi *vsi = np->vsi; 1026 struct i40e_pf *pf = vsi->back; 1027 u32 new_rx_count, new_tx_count; 1028 int i, err = 0; 1029 1030 if ((ring->rx_mini_pending) || (ring->rx_jumbo_pending)) 1031 return -EINVAL; 1032 1033 if (ring->tx_pending > I40E_MAX_NUM_DESCRIPTORS || 1034 ring->tx_pending < I40E_MIN_NUM_DESCRIPTORS || 1035 ring->rx_pending > I40E_MAX_NUM_DESCRIPTORS || 1036 ring->rx_pending < I40E_MIN_NUM_DESCRIPTORS) { 1037 netdev_info(netdev, 1038 "Descriptors requested (Tx: %d / Rx: %d) out of range [%d-%d]\n", 1039 ring->tx_pending, ring->rx_pending, 1040 I40E_MIN_NUM_DESCRIPTORS, I40E_MAX_NUM_DESCRIPTORS); 1041 return -EINVAL; 1042 } 1043 1044 new_tx_count = ALIGN(ring->tx_pending, I40E_REQ_DESCRIPTOR_MULTIPLE); 1045 new_rx_count = ALIGN(ring->rx_pending, I40E_REQ_DESCRIPTOR_MULTIPLE); 1046 1047 /* if nothing to do return success */ 1048 if ((new_tx_count == vsi->tx_rings[0]->count) && 1049 (new_rx_count == vsi->rx_rings[0]->count)) 1050 return 0; 1051 1052 while (test_and_set_bit(__I40E_CONFIG_BUSY, &pf->state)) 1053 usleep_range(1000, 2000); 1054 1055 if (!netif_running(vsi->netdev)) { 1056 /* simple case - set for the next time the netdev is started */ 1057 for (i = 0; i < vsi->num_queue_pairs; i++) { 1058 vsi->tx_rings[i]->count = new_tx_count; 1059 vsi->rx_rings[i]->count = new_rx_count; 1060 } 1061 goto done; 1062 } 1063 1064 /* We can't just free everything and then setup again, 1065 * because the ISRs in MSI-X mode get passed pointers 1066 * to the Tx and Rx ring structs. 1067 */ 1068 1069 /* alloc updated Tx resources */ 1070 if (new_tx_count != vsi->tx_rings[0]->count) { 1071 netdev_info(netdev, 1072 "Changing Tx descriptor count from %d to %d.\n", 1073 vsi->tx_rings[0]->count, new_tx_count); 1074 tx_rings = kcalloc(vsi->alloc_queue_pairs, 1075 sizeof(struct i40e_ring), GFP_KERNEL); 1076 if (!tx_rings) { 1077 err = -ENOMEM; 1078 goto done; 1079 } 1080 1081 for (i = 0; i < vsi->num_queue_pairs; i++) { 1082 /* clone ring and setup updated count */ 1083 tx_rings[i] = *vsi->tx_rings[i]; 1084 tx_rings[i].count = new_tx_count; 1085 err = i40e_setup_tx_descriptors(&tx_rings[i]); 1086 if (err) { 1087 while (i) { 1088 i--; 1089 i40e_free_tx_resources(&tx_rings[i]); 1090 } 1091 kfree(tx_rings); 1092 tx_rings = NULL; 1093 1094 goto done; 1095 } 1096 } 1097 } 1098 1099 /* alloc updated Rx resources */ 1100 if (new_rx_count != vsi->rx_rings[0]->count) { 1101 netdev_info(netdev, 1102 "Changing Rx descriptor count from %d to %d\n", 1103 vsi->rx_rings[0]->count, new_rx_count); 1104 rx_rings = kcalloc(vsi->alloc_queue_pairs, 1105 sizeof(struct i40e_ring), GFP_KERNEL); 1106 if (!rx_rings) { 1107 err = -ENOMEM; 1108 goto free_tx; 1109 } 1110 1111 for (i = 0; i < vsi->num_queue_pairs; i++) { 1112 /* clone ring and setup updated count */ 1113 rx_rings[i] = *vsi->rx_rings[i]; 1114 rx_rings[i].count = new_rx_count; 1115 err = i40e_setup_rx_descriptors(&rx_rings[i]); 1116 if (err) { 1117 while (i) { 1118 i--; 1119 i40e_free_rx_resources(&rx_rings[i]); 1120 } 1121 kfree(rx_rings); 1122 rx_rings = NULL; 1123 1124 goto free_tx; 1125 } 1126 } 1127 } 1128 1129 /* Bring interface down, copy in the new ring info, 1130 * then restore the interface 1131 */ 1132 i40e_down(vsi); 1133 1134 if (tx_rings) { 1135 for (i = 0; i < vsi->num_queue_pairs; i++) { 1136 i40e_free_tx_resources(vsi->tx_rings[i]); 1137 *vsi->tx_rings[i] = tx_rings[i]; 1138 } 1139 kfree(tx_rings); 1140 tx_rings = NULL; 1141 } 1142 1143 if (rx_rings) { 1144 for (i = 0; i < vsi->num_queue_pairs; i++) { 1145 i40e_free_rx_resources(vsi->rx_rings[i]); 1146 *vsi->rx_rings[i] = rx_rings[i]; 1147 } 1148 kfree(rx_rings); 1149 rx_rings = NULL; 1150 } 1151 1152 i40e_up(vsi); 1153 1154 free_tx: 1155 /* error cleanup if the Rx allocations failed after getting Tx */ 1156 if (tx_rings) { 1157 for (i = 0; i < vsi->num_queue_pairs; i++) 1158 i40e_free_tx_resources(&tx_rings[i]); 1159 kfree(tx_rings); 1160 tx_rings = NULL; 1161 } 1162 1163 done: 1164 clear_bit(__I40E_CONFIG_BUSY, &pf->state); 1165 1166 return err; 1167 } 1168 1169 static int i40e_get_sset_count(struct net_device *netdev, int sset) 1170 { 1171 struct i40e_netdev_priv *np = netdev_priv(netdev); 1172 struct i40e_vsi *vsi = np->vsi; 1173 struct i40e_pf *pf = vsi->back; 1174 1175 switch (sset) { 1176 case ETH_SS_TEST: 1177 return I40E_TEST_LEN; 1178 case ETH_SS_STATS: 1179 if (vsi == pf->vsi[pf->lan_vsi]) { 1180 int len = I40E_PF_STATS_LEN(netdev); 1181 1182 if (pf->lan_veb != I40E_NO_VEB) 1183 len += I40E_VEB_STATS_LEN; 1184 return len; 1185 } else { 1186 return I40E_VSI_STATS_LEN(netdev); 1187 } 1188 default: 1189 return -EOPNOTSUPP; 1190 } 1191 } 1192 1193 static void i40e_get_ethtool_stats(struct net_device *netdev, 1194 struct ethtool_stats *stats, u64 *data) 1195 { 1196 struct i40e_netdev_priv *np = netdev_priv(netdev); 1197 struct i40e_ring *tx_ring, *rx_ring; 1198 struct i40e_vsi *vsi = np->vsi; 1199 struct i40e_pf *pf = vsi->back; 1200 int i = 0; 1201 char *p; 1202 int j; 1203 struct rtnl_link_stats64 *net_stats = i40e_get_vsi_stats_struct(vsi); 1204 unsigned int start; 1205 1206 i40e_update_stats(vsi); 1207 1208 for (j = 0; j < I40E_NETDEV_STATS_LEN; j++) { 1209 p = (char *)net_stats + i40e_gstrings_net_stats[j].stat_offset; 1210 data[i++] = (i40e_gstrings_net_stats[j].sizeof_stat == 1211 sizeof(u64)) ? *(u64 *)p : *(u32 *)p; 1212 } 1213 for (j = 0; j < I40E_MISC_STATS_LEN; j++) { 1214 p = (char *)vsi + i40e_gstrings_misc_stats[j].stat_offset; 1215 data[i++] = (i40e_gstrings_misc_stats[j].sizeof_stat == 1216 sizeof(u64)) ? *(u64 *)p : *(u32 *)p; 1217 } 1218 #ifdef I40E_FCOE 1219 for (j = 0; j < I40E_FCOE_STATS_LEN; j++) { 1220 p = (char *)vsi + i40e_gstrings_fcoe_stats[j].stat_offset; 1221 data[i++] = (i40e_gstrings_fcoe_stats[j].sizeof_stat == 1222 sizeof(u64)) ? *(u64 *)p : *(u32 *)p; 1223 } 1224 #endif 1225 rcu_read_lock(); 1226 for (j = 0; j < vsi->num_queue_pairs; j++) { 1227 tx_ring = ACCESS_ONCE(vsi->tx_rings[j]); 1228 1229 if (!tx_ring) 1230 continue; 1231 1232 /* process Tx ring statistics */ 1233 do { 1234 start = u64_stats_fetch_begin_irq(&tx_ring->syncp); 1235 data[i] = tx_ring->stats.packets; 1236 data[i + 1] = tx_ring->stats.bytes; 1237 } while (u64_stats_fetch_retry_irq(&tx_ring->syncp, start)); 1238 i += 2; 1239 1240 /* Rx ring is the 2nd half of the queue pair */ 1241 rx_ring = &tx_ring[1]; 1242 do { 1243 start = u64_stats_fetch_begin_irq(&rx_ring->syncp); 1244 data[i] = rx_ring->stats.packets; 1245 data[i + 1] = rx_ring->stats.bytes; 1246 } while (u64_stats_fetch_retry_irq(&rx_ring->syncp, start)); 1247 i += 2; 1248 } 1249 rcu_read_unlock(); 1250 if (vsi != pf->vsi[pf->lan_vsi]) 1251 return; 1252 1253 if (pf->lan_veb != I40E_NO_VEB) { 1254 struct i40e_veb *veb = pf->veb[pf->lan_veb]; 1255 for (j = 0; j < I40E_VEB_STATS_LEN; j++) { 1256 p = (char *)veb; 1257 p += i40e_gstrings_veb_stats[j].stat_offset; 1258 data[i++] = (i40e_gstrings_veb_stats[j].sizeof_stat == 1259 sizeof(u64)) ? *(u64 *)p : *(u32 *)p; 1260 } 1261 } 1262 for (j = 0; j < I40E_GLOBAL_STATS_LEN; j++) { 1263 p = (char *)pf + i40e_gstrings_stats[j].stat_offset; 1264 data[i++] = (i40e_gstrings_stats[j].sizeof_stat == 1265 sizeof(u64)) ? *(u64 *)p : *(u32 *)p; 1266 } 1267 for (j = 0; j < I40E_MAX_USER_PRIORITY; j++) { 1268 data[i++] = pf->stats.priority_xon_tx[j]; 1269 data[i++] = pf->stats.priority_xoff_tx[j]; 1270 } 1271 for (j = 0; j < I40E_MAX_USER_PRIORITY; j++) { 1272 data[i++] = pf->stats.priority_xon_rx[j]; 1273 data[i++] = pf->stats.priority_xoff_rx[j]; 1274 } 1275 for (j = 0; j < I40E_MAX_USER_PRIORITY; j++) 1276 data[i++] = pf->stats.priority_xon_2_xoff[j]; 1277 } 1278 1279 static void i40e_get_strings(struct net_device *netdev, u32 stringset, 1280 u8 *data) 1281 { 1282 struct i40e_netdev_priv *np = netdev_priv(netdev); 1283 struct i40e_vsi *vsi = np->vsi; 1284 struct i40e_pf *pf = vsi->back; 1285 char *p = (char *)data; 1286 int i; 1287 1288 switch (stringset) { 1289 case ETH_SS_TEST: 1290 for (i = 0; i < I40E_TEST_LEN; i++) { 1291 memcpy(data, i40e_gstrings_test[i], ETH_GSTRING_LEN); 1292 data += ETH_GSTRING_LEN; 1293 } 1294 break; 1295 case ETH_SS_STATS: 1296 for (i = 0; i < I40E_NETDEV_STATS_LEN; i++) { 1297 snprintf(p, ETH_GSTRING_LEN, "%s", 1298 i40e_gstrings_net_stats[i].stat_string); 1299 p += ETH_GSTRING_LEN; 1300 } 1301 for (i = 0; i < I40E_MISC_STATS_LEN; i++) { 1302 snprintf(p, ETH_GSTRING_LEN, "%s", 1303 i40e_gstrings_misc_stats[i].stat_string); 1304 p += ETH_GSTRING_LEN; 1305 } 1306 #ifdef I40E_FCOE 1307 for (i = 0; i < I40E_FCOE_STATS_LEN; i++) { 1308 snprintf(p, ETH_GSTRING_LEN, "%s", 1309 i40e_gstrings_fcoe_stats[i].stat_string); 1310 p += ETH_GSTRING_LEN; 1311 } 1312 #endif 1313 for (i = 0; i < vsi->num_queue_pairs; i++) { 1314 snprintf(p, ETH_GSTRING_LEN, "tx-%u.tx_packets", i); 1315 p += ETH_GSTRING_LEN; 1316 snprintf(p, ETH_GSTRING_LEN, "tx-%u.tx_bytes", i); 1317 p += ETH_GSTRING_LEN; 1318 snprintf(p, ETH_GSTRING_LEN, "rx-%u.rx_packets", i); 1319 p += ETH_GSTRING_LEN; 1320 snprintf(p, ETH_GSTRING_LEN, "rx-%u.rx_bytes", i); 1321 p += ETH_GSTRING_LEN; 1322 } 1323 if (vsi != pf->vsi[pf->lan_vsi]) 1324 return; 1325 1326 if (pf->lan_veb != I40E_NO_VEB) { 1327 for (i = 0; i < I40E_VEB_STATS_LEN; i++) { 1328 snprintf(p, ETH_GSTRING_LEN, "veb.%s", 1329 i40e_gstrings_veb_stats[i].stat_string); 1330 p += ETH_GSTRING_LEN; 1331 } 1332 } 1333 for (i = 0; i < I40E_GLOBAL_STATS_LEN; i++) { 1334 snprintf(p, ETH_GSTRING_LEN, "port.%s", 1335 i40e_gstrings_stats[i].stat_string); 1336 p += ETH_GSTRING_LEN; 1337 } 1338 for (i = 0; i < I40E_MAX_USER_PRIORITY; i++) { 1339 snprintf(p, ETH_GSTRING_LEN, 1340 "port.tx_priority_%u_xon", i); 1341 p += ETH_GSTRING_LEN; 1342 snprintf(p, ETH_GSTRING_LEN, 1343 "port.tx_priority_%u_xoff", i); 1344 p += ETH_GSTRING_LEN; 1345 } 1346 for (i = 0; i < I40E_MAX_USER_PRIORITY; i++) { 1347 snprintf(p, ETH_GSTRING_LEN, 1348 "port.rx_priority_%u_xon", i); 1349 p += ETH_GSTRING_LEN; 1350 snprintf(p, ETH_GSTRING_LEN, 1351 "port.rx_priority_%u_xoff", i); 1352 p += ETH_GSTRING_LEN; 1353 } 1354 for (i = 0; i < I40E_MAX_USER_PRIORITY; i++) { 1355 snprintf(p, ETH_GSTRING_LEN, 1356 "port.rx_priority_%u_xon_2_xoff", i); 1357 p += ETH_GSTRING_LEN; 1358 } 1359 /* BUG_ON(p - data != I40E_STATS_LEN * ETH_GSTRING_LEN); */ 1360 break; 1361 } 1362 } 1363 1364 static int i40e_get_ts_info(struct net_device *dev, 1365 struct ethtool_ts_info *info) 1366 { 1367 struct i40e_pf *pf = i40e_netdev_to_pf(dev); 1368 1369 /* only report HW timestamping if PTP is enabled */ 1370 if (!(pf->flags & I40E_FLAG_PTP)) 1371 return ethtool_op_get_ts_info(dev, info); 1372 1373 info->so_timestamping = SOF_TIMESTAMPING_TX_SOFTWARE | 1374 SOF_TIMESTAMPING_RX_SOFTWARE | 1375 SOF_TIMESTAMPING_SOFTWARE | 1376 SOF_TIMESTAMPING_TX_HARDWARE | 1377 SOF_TIMESTAMPING_RX_HARDWARE | 1378 SOF_TIMESTAMPING_RAW_HARDWARE; 1379 1380 if (pf->ptp_clock) 1381 info->phc_index = ptp_clock_index(pf->ptp_clock); 1382 else 1383 info->phc_index = -1; 1384 1385 info->tx_types = (1 << HWTSTAMP_TX_OFF) | (1 << HWTSTAMP_TX_ON); 1386 1387 info->rx_filters = (1 << HWTSTAMP_FILTER_NONE) | 1388 (1 << HWTSTAMP_FILTER_PTP_V1_L4_SYNC) | 1389 (1 << HWTSTAMP_FILTER_PTP_V1_L4_DELAY_REQ) | 1390 (1 << HWTSTAMP_FILTER_PTP_V2_EVENT) | 1391 (1 << HWTSTAMP_FILTER_PTP_V2_L2_EVENT) | 1392 (1 << HWTSTAMP_FILTER_PTP_V2_L4_EVENT) | 1393 (1 << HWTSTAMP_FILTER_PTP_V2_SYNC) | 1394 (1 << HWTSTAMP_FILTER_PTP_V2_L2_SYNC) | 1395 (1 << HWTSTAMP_FILTER_PTP_V2_L4_SYNC) | 1396 (1 << HWTSTAMP_FILTER_PTP_V2_DELAY_REQ) | 1397 (1 << HWTSTAMP_FILTER_PTP_V2_L2_DELAY_REQ) | 1398 (1 << HWTSTAMP_FILTER_PTP_V2_L4_DELAY_REQ); 1399 1400 return 0; 1401 } 1402 1403 static int i40e_link_test(struct net_device *netdev, u64 *data) 1404 { 1405 struct i40e_netdev_priv *np = netdev_priv(netdev); 1406 struct i40e_pf *pf = np->vsi->back; 1407 1408 netif_info(pf, hw, netdev, "link test\n"); 1409 if (i40e_get_link_status(&pf->hw)) 1410 *data = 0; 1411 else 1412 *data = 1; 1413 1414 return *data; 1415 } 1416 1417 static int i40e_reg_test(struct net_device *netdev, u64 *data) 1418 { 1419 struct i40e_netdev_priv *np = netdev_priv(netdev); 1420 struct i40e_pf *pf = np->vsi->back; 1421 1422 netif_info(pf, hw, netdev, "register test\n"); 1423 *data = i40e_diag_reg_test(&pf->hw); 1424 1425 return *data; 1426 } 1427 1428 static int i40e_eeprom_test(struct net_device *netdev, u64 *data) 1429 { 1430 struct i40e_netdev_priv *np = netdev_priv(netdev); 1431 struct i40e_pf *pf = np->vsi->back; 1432 1433 netif_info(pf, hw, netdev, "eeprom test\n"); 1434 *data = i40e_diag_eeprom_test(&pf->hw); 1435 1436 /* forcebly clear the NVM Update state machine */ 1437 pf->hw.nvmupd_state = I40E_NVMUPD_STATE_INIT; 1438 1439 return *data; 1440 } 1441 1442 static int i40e_intr_test(struct net_device *netdev, u64 *data) 1443 { 1444 struct i40e_netdev_priv *np = netdev_priv(netdev); 1445 struct i40e_pf *pf = np->vsi->back; 1446 u16 swc_old = pf->sw_int_count; 1447 1448 netif_info(pf, hw, netdev, "interrupt test\n"); 1449 wr32(&pf->hw, I40E_PFINT_DYN_CTL0, 1450 (I40E_PFINT_DYN_CTL0_INTENA_MASK | 1451 I40E_PFINT_DYN_CTL0_SWINT_TRIG_MASK | 1452 I40E_PFINT_DYN_CTL0_ITR_INDX_MASK | 1453 I40E_PFINT_DYN_CTL0_SW_ITR_INDX_ENA_MASK | 1454 I40E_PFINT_DYN_CTL0_SW_ITR_INDX_MASK)); 1455 usleep_range(1000, 2000); 1456 *data = (swc_old == pf->sw_int_count); 1457 1458 return *data; 1459 } 1460 1461 static int i40e_loopback_test(struct net_device *netdev, u64 *data) 1462 { 1463 struct i40e_netdev_priv *np = netdev_priv(netdev); 1464 struct i40e_pf *pf = np->vsi->back; 1465 1466 netif_info(pf, hw, netdev, "loopback test not implemented\n"); 1467 *data = 0; 1468 1469 return *data; 1470 } 1471 1472 static void i40e_diag_test(struct net_device *netdev, 1473 struct ethtool_test *eth_test, u64 *data) 1474 { 1475 struct i40e_netdev_priv *np = netdev_priv(netdev); 1476 struct i40e_pf *pf = np->vsi->back; 1477 1478 if (eth_test->flags == ETH_TEST_FL_OFFLINE) { 1479 /* Offline tests */ 1480 netif_info(pf, drv, netdev, "offline testing starting\n"); 1481 1482 set_bit(__I40E_TESTING, &pf->state); 1483 1484 /* Link test performed before hardware reset 1485 * so autoneg doesn't interfere with test result 1486 */ 1487 if (i40e_link_test(netdev, &data[I40E_ETH_TEST_LINK])) 1488 eth_test->flags |= ETH_TEST_FL_FAILED; 1489 1490 if (i40e_eeprom_test(netdev, &data[I40E_ETH_TEST_EEPROM])) 1491 eth_test->flags |= ETH_TEST_FL_FAILED; 1492 1493 if (i40e_intr_test(netdev, &data[I40E_ETH_TEST_INTR])) 1494 eth_test->flags |= ETH_TEST_FL_FAILED; 1495 1496 if (i40e_loopback_test(netdev, &data[I40E_ETH_TEST_LOOPBACK])) 1497 eth_test->flags |= ETH_TEST_FL_FAILED; 1498 1499 /* run reg test last, a reset is required after it */ 1500 if (i40e_reg_test(netdev, &data[I40E_ETH_TEST_REG])) 1501 eth_test->flags |= ETH_TEST_FL_FAILED; 1502 1503 clear_bit(__I40E_TESTING, &pf->state); 1504 i40e_do_reset(pf, (1 << __I40E_PF_RESET_REQUESTED)); 1505 } else { 1506 /* Online tests */ 1507 netif_info(pf, drv, netdev, "online testing starting\n"); 1508 1509 if (i40e_link_test(netdev, &data[I40E_ETH_TEST_LINK])) 1510 eth_test->flags |= ETH_TEST_FL_FAILED; 1511 1512 /* Offline only tests, not run in online; pass by default */ 1513 data[I40E_ETH_TEST_REG] = 0; 1514 data[I40E_ETH_TEST_EEPROM] = 0; 1515 data[I40E_ETH_TEST_INTR] = 0; 1516 data[I40E_ETH_TEST_LOOPBACK] = 0; 1517 } 1518 1519 netif_info(pf, drv, netdev, "testing finished\n"); 1520 } 1521 1522 static void i40e_get_wol(struct net_device *netdev, 1523 struct ethtool_wolinfo *wol) 1524 { 1525 struct i40e_netdev_priv *np = netdev_priv(netdev); 1526 struct i40e_pf *pf = np->vsi->back; 1527 struct i40e_hw *hw = &pf->hw; 1528 u16 wol_nvm_bits; 1529 1530 /* NVM bit on means WoL disabled for the port */ 1531 i40e_read_nvm_word(hw, I40E_SR_NVM_WAKE_ON_LAN, &wol_nvm_bits); 1532 if ((1 << hw->port) & wol_nvm_bits || hw->partition_id != 1) { 1533 wol->supported = 0; 1534 wol->wolopts = 0; 1535 } else { 1536 wol->supported = WAKE_MAGIC; 1537 wol->wolopts = (pf->wol_en ? WAKE_MAGIC : 0); 1538 } 1539 } 1540 1541 /** 1542 * i40e_set_wol - set the WakeOnLAN configuration 1543 * @netdev: the netdev in question 1544 * @wol: the ethtool WoL setting data 1545 **/ 1546 static int i40e_set_wol(struct net_device *netdev, struct ethtool_wolinfo *wol) 1547 { 1548 struct i40e_netdev_priv *np = netdev_priv(netdev); 1549 struct i40e_pf *pf = np->vsi->back; 1550 struct i40e_vsi *vsi = np->vsi; 1551 struct i40e_hw *hw = &pf->hw; 1552 u16 wol_nvm_bits; 1553 1554 /* WoL not supported if this isn't the controlling PF on the port */ 1555 if (hw->partition_id != 1) { 1556 i40e_partition_setting_complaint(pf); 1557 return -EOPNOTSUPP; 1558 } 1559 1560 if (vsi != pf->vsi[pf->lan_vsi]) 1561 return -EOPNOTSUPP; 1562 1563 /* NVM bit on means WoL disabled for the port */ 1564 i40e_read_nvm_word(hw, I40E_SR_NVM_WAKE_ON_LAN, &wol_nvm_bits); 1565 if (((1 << hw->port) & wol_nvm_bits)) 1566 return -EOPNOTSUPP; 1567 1568 /* only magic packet is supported */ 1569 if (wol->wolopts && (wol->wolopts != WAKE_MAGIC)) 1570 return -EOPNOTSUPP; 1571 1572 /* is this a new value? */ 1573 if (pf->wol_en != !!wol->wolopts) { 1574 pf->wol_en = !!wol->wolopts; 1575 device_set_wakeup_enable(&pf->pdev->dev, pf->wol_en); 1576 } 1577 1578 return 0; 1579 } 1580 1581 static int i40e_set_phys_id(struct net_device *netdev, 1582 enum ethtool_phys_id_state state) 1583 { 1584 struct i40e_netdev_priv *np = netdev_priv(netdev); 1585 struct i40e_pf *pf = np->vsi->back; 1586 struct i40e_hw *hw = &pf->hw; 1587 int blink_freq = 2; 1588 1589 switch (state) { 1590 case ETHTOOL_ID_ACTIVE: 1591 pf->led_status = i40e_led_get(hw); 1592 return blink_freq; 1593 case ETHTOOL_ID_ON: 1594 i40e_led_set(hw, 0xF, false); 1595 break; 1596 case ETHTOOL_ID_OFF: 1597 i40e_led_set(hw, 0x0, false); 1598 break; 1599 case ETHTOOL_ID_INACTIVE: 1600 i40e_led_set(hw, pf->led_status, false); 1601 break; 1602 } 1603 1604 return 0; 1605 } 1606 1607 /* NOTE: i40e hardware uses a conversion factor of 2 for Interrupt 1608 * Throttle Rate (ITR) ie. ITR(1) = 2us ITR(10) = 20 us, and also 1609 * 125us (8000 interrupts per second) == ITR(62) 1610 */ 1611 1612 static int i40e_get_coalesce(struct net_device *netdev, 1613 struct ethtool_coalesce *ec) 1614 { 1615 struct i40e_netdev_priv *np = netdev_priv(netdev); 1616 struct i40e_vsi *vsi = np->vsi; 1617 1618 ec->tx_max_coalesced_frames_irq = vsi->work_limit; 1619 ec->rx_max_coalesced_frames_irq = vsi->work_limit; 1620 1621 if (ITR_IS_DYNAMIC(vsi->rx_itr_setting)) 1622 ec->use_adaptive_rx_coalesce = 1; 1623 1624 if (ITR_IS_DYNAMIC(vsi->tx_itr_setting)) 1625 ec->use_adaptive_tx_coalesce = 1; 1626 1627 ec->rx_coalesce_usecs = vsi->rx_itr_setting & ~I40E_ITR_DYNAMIC; 1628 ec->tx_coalesce_usecs = vsi->tx_itr_setting & ~I40E_ITR_DYNAMIC; 1629 1630 return 0; 1631 } 1632 1633 static int i40e_set_coalesce(struct net_device *netdev, 1634 struct ethtool_coalesce *ec) 1635 { 1636 struct i40e_netdev_priv *np = netdev_priv(netdev); 1637 struct i40e_q_vector *q_vector; 1638 struct i40e_vsi *vsi = np->vsi; 1639 struct i40e_pf *pf = vsi->back; 1640 struct i40e_hw *hw = &pf->hw; 1641 u16 vector; 1642 int i; 1643 1644 if (ec->tx_max_coalesced_frames_irq || ec->rx_max_coalesced_frames_irq) 1645 vsi->work_limit = ec->tx_max_coalesced_frames_irq; 1646 1647 vector = vsi->base_vector; 1648 if ((ec->rx_coalesce_usecs >= (I40E_MIN_ITR << 1)) && 1649 (ec->rx_coalesce_usecs <= (I40E_MAX_ITR << 1))) { 1650 vsi->rx_itr_setting = ec->rx_coalesce_usecs; 1651 } else if (ec->rx_coalesce_usecs == 0) { 1652 vsi->rx_itr_setting = ec->rx_coalesce_usecs; 1653 if (ec->use_adaptive_rx_coalesce) 1654 netif_info(pf, drv, netdev, "rx-usecs=0, need to disable adaptive-rx for a complete disable\n"); 1655 } else { 1656 netif_info(pf, drv, netdev, "Invalid value, rx-usecs range is 0-8160\n"); 1657 return -EINVAL; 1658 } 1659 1660 if ((ec->tx_coalesce_usecs >= (I40E_MIN_ITR << 1)) && 1661 (ec->tx_coalesce_usecs <= (I40E_MAX_ITR << 1))) { 1662 vsi->tx_itr_setting = ec->tx_coalesce_usecs; 1663 } else if (ec->tx_coalesce_usecs == 0) { 1664 vsi->tx_itr_setting = ec->tx_coalesce_usecs; 1665 if (ec->use_adaptive_tx_coalesce) 1666 netif_info(pf, drv, netdev, "tx-usecs=0, need to disable adaptive-tx for a complete disable\n"); 1667 } else { 1668 netif_info(pf, drv, netdev, 1669 "Invalid value, tx-usecs range is 0-8160\n"); 1670 return -EINVAL; 1671 } 1672 1673 if (ec->use_adaptive_rx_coalesce) 1674 vsi->rx_itr_setting |= I40E_ITR_DYNAMIC; 1675 else 1676 vsi->rx_itr_setting &= ~I40E_ITR_DYNAMIC; 1677 1678 if (ec->use_adaptive_tx_coalesce) 1679 vsi->tx_itr_setting |= I40E_ITR_DYNAMIC; 1680 else 1681 vsi->tx_itr_setting &= ~I40E_ITR_DYNAMIC; 1682 1683 for (i = 0; i < vsi->num_q_vectors; i++, vector++) { 1684 q_vector = vsi->q_vectors[i]; 1685 q_vector->rx.itr = ITR_TO_REG(vsi->rx_itr_setting); 1686 wr32(hw, I40E_PFINT_ITRN(0, vector - 1), q_vector->rx.itr); 1687 q_vector->tx.itr = ITR_TO_REG(vsi->tx_itr_setting); 1688 wr32(hw, I40E_PFINT_ITRN(1, vector - 1), q_vector->tx.itr); 1689 i40e_flush(hw); 1690 } 1691 1692 return 0; 1693 } 1694 1695 /** 1696 * i40e_get_rss_hash_opts - Get RSS hash Input Set for each flow type 1697 * @pf: pointer to the physical function struct 1698 * @cmd: ethtool rxnfc command 1699 * 1700 * Returns Success if the flow is supported, else Invalid Input. 1701 **/ 1702 static int i40e_get_rss_hash_opts(struct i40e_pf *pf, struct ethtool_rxnfc *cmd) 1703 { 1704 cmd->data = 0; 1705 1706 /* Report default options for RSS on i40e */ 1707 switch (cmd->flow_type) { 1708 case TCP_V4_FLOW: 1709 case UDP_V4_FLOW: 1710 cmd->data |= RXH_L4_B_0_1 | RXH_L4_B_2_3; 1711 /* fall through to add IP fields */ 1712 case SCTP_V4_FLOW: 1713 case AH_ESP_V4_FLOW: 1714 case AH_V4_FLOW: 1715 case ESP_V4_FLOW: 1716 case IPV4_FLOW: 1717 cmd->data |= RXH_IP_SRC | RXH_IP_DST; 1718 break; 1719 case TCP_V6_FLOW: 1720 case UDP_V6_FLOW: 1721 cmd->data |= RXH_L4_B_0_1 | RXH_L4_B_2_3; 1722 /* fall through to add IP fields */ 1723 case SCTP_V6_FLOW: 1724 case AH_ESP_V6_FLOW: 1725 case AH_V6_FLOW: 1726 case ESP_V6_FLOW: 1727 case IPV6_FLOW: 1728 cmd->data |= RXH_IP_SRC | RXH_IP_DST; 1729 break; 1730 default: 1731 return -EINVAL; 1732 } 1733 1734 return 0; 1735 } 1736 1737 /** 1738 * i40e_get_ethtool_fdir_all - Populates the rule count of a command 1739 * @pf: Pointer to the physical function struct 1740 * @cmd: The command to get or set Rx flow classification rules 1741 * @rule_locs: Array of used rule locations 1742 * 1743 * This function populates both the total and actual rule count of 1744 * the ethtool flow classification command 1745 * 1746 * Returns 0 on success or -EMSGSIZE if entry not found 1747 **/ 1748 static int i40e_get_ethtool_fdir_all(struct i40e_pf *pf, 1749 struct ethtool_rxnfc *cmd, 1750 u32 *rule_locs) 1751 { 1752 struct i40e_fdir_filter *rule; 1753 struct hlist_node *node2; 1754 int cnt = 0; 1755 1756 /* report total rule count */ 1757 cmd->data = i40e_get_fd_cnt_all(pf); 1758 1759 hlist_for_each_entry_safe(rule, node2, 1760 &pf->fdir_filter_list, fdir_node) { 1761 if (cnt == cmd->rule_cnt) 1762 return -EMSGSIZE; 1763 1764 rule_locs[cnt] = rule->fd_id; 1765 cnt++; 1766 } 1767 1768 cmd->rule_cnt = cnt; 1769 1770 return 0; 1771 } 1772 1773 /** 1774 * i40e_get_ethtool_fdir_entry - Look up a filter based on Rx flow 1775 * @pf: Pointer to the physical function struct 1776 * @cmd: The command to get or set Rx flow classification rules 1777 * 1778 * This function looks up a filter based on the Rx flow classification 1779 * command and fills the flow spec info for it if found 1780 * 1781 * Returns 0 on success or -EINVAL if filter not found 1782 **/ 1783 static int i40e_get_ethtool_fdir_entry(struct i40e_pf *pf, 1784 struct ethtool_rxnfc *cmd) 1785 { 1786 struct ethtool_rx_flow_spec *fsp = 1787 (struct ethtool_rx_flow_spec *)&cmd->fs; 1788 struct i40e_fdir_filter *rule = NULL; 1789 struct hlist_node *node2; 1790 1791 hlist_for_each_entry_safe(rule, node2, 1792 &pf->fdir_filter_list, fdir_node) { 1793 if (fsp->location <= rule->fd_id) 1794 break; 1795 } 1796 1797 if (!rule || fsp->location != rule->fd_id) 1798 return -EINVAL; 1799 1800 fsp->flow_type = rule->flow_type; 1801 if (fsp->flow_type == IP_USER_FLOW) { 1802 fsp->h_u.usr_ip4_spec.ip_ver = ETH_RX_NFC_IP4; 1803 fsp->h_u.usr_ip4_spec.proto = 0; 1804 fsp->m_u.usr_ip4_spec.proto = 0; 1805 } 1806 1807 /* Reverse the src and dest notion, since the HW views them from 1808 * Tx perspective where as the user expects it from Rx filter view. 1809 */ 1810 fsp->h_u.tcp_ip4_spec.psrc = rule->dst_port; 1811 fsp->h_u.tcp_ip4_spec.pdst = rule->src_port; 1812 fsp->h_u.tcp_ip4_spec.ip4src = rule->dst_ip[0]; 1813 fsp->h_u.tcp_ip4_spec.ip4dst = rule->src_ip[0]; 1814 1815 if (rule->dest_ctl == I40E_FILTER_PROGRAM_DESC_DEST_DROP_PACKET) 1816 fsp->ring_cookie = RX_CLS_FLOW_DISC; 1817 else 1818 fsp->ring_cookie = rule->q_index; 1819 1820 return 0; 1821 } 1822 1823 /** 1824 * i40e_get_rxnfc - command to get RX flow classification rules 1825 * @netdev: network interface device structure 1826 * @cmd: ethtool rxnfc command 1827 * 1828 * Returns Success if the command is supported. 1829 **/ 1830 static int i40e_get_rxnfc(struct net_device *netdev, struct ethtool_rxnfc *cmd, 1831 u32 *rule_locs) 1832 { 1833 struct i40e_netdev_priv *np = netdev_priv(netdev); 1834 struct i40e_vsi *vsi = np->vsi; 1835 struct i40e_pf *pf = vsi->back; 1836 int ret = -EOPNOTSUPP; 1837 1838 switch (cmd->cmd) { 1839 case ETHTOOL_GRXRINGS: 1840 cmd->data = vsi->alloc_queue_pairs; 1841 ret = 0; 1842 break; 1843 case ETHTOOL_GRXFH: 1844 ret = i40e_get_rss_hash_opts(pf, cmd); 1845 break; 1846 case ETHTOOL_GRXCLSRLCNT: 1847 cmd->rule_cnt = pf->fdir_pf_active_filters; 1848 /* report total rule count */ 1849 cmd->data = i40e_get_fd_cnt_all(pf); 1850 ret = 0; 1851 break; 1852 case ETHTOOL_GRXCLSRULE: 1853 ret = i40e_get_ethtool_fdir_entry(pf, cmd); 1854 break; 1855 case ETHTOOL_GRXCLSRLALL: 1856 ret = i40e_get_ethtool_fdir_all(pf, cmd, rule_locs); 1857 break; 1858 default: 1859 break; 1860 } 1861 1862 return ret; 1863 } 1864 1865 /** 1866 * i40e_set_rss_hash_opt - Enable/Disable flow types for RSS hash 1867 * @pf: pointer to the physical function struct 1868 * @cmd: ethtool rxnfc command 1869 * 1870 * Returns Success if the flow input set is supported. 1871 **/ 1872 static int i40e_set_rss_hash_opt(struct i40e_pf *pf, struct ethtool_rxnfc *nfc) 1873 { 1874 struct i40e_hw *hw = &pf->hw; 1875 u64 hena = (u64)rd32(hw, I40E_PFQF_HENA(0)) | 1876 ((u64)rd32(hw, I40E_PFQF_HENA(1)) << 32); 1877 1878 /* RSS does not support anything other than hashing 1879 * to queues on src and dst IPs and ports 1880 */ 1881 if (nfc->data & ~(RXH_IP_SRC | RXH_IP_DST | 1882 RXH_L4_B_0_1 | RXH_L4_B_2_3)) 1883 return -EINVAL; 1884 1885 /* We need at least the IP SRC and DEST fields for hashing */ 1886 if (!(nfc->data & RXH_IP_SRC) || 1887 !(nfc->data & RXH_IP_DST)) 1888 return -EINVAL; 1889 1890 switch (nfc->flow_type) { 1891 case TCP_V4_FLOW: 1892 switch (nfc->data & (RXH_L4_B_0_1 | RXH_L4_B_2_3)) { 1893 case 0: 1894 hena &= ~((u64)1 << I40E_FILTER_PCTYPE_NONF_IPV4_TCP); 1895 break; 1896 case (RXH_L4_B_0_1 | RXH_L4_B_2_3): 1897 hena |= ((u64)1 << I40E_FILTER_PCTYPE_NONF_IPV4_TCP); 1898 break; 1899 default: 1900 return -EINVAL; 1901 } 1902 break; 1903 case TCP_V6_FLOW: 1904 switch (nfc->data & (RXH_L4_B_0_1 | RXH_L4_B_2_3)) { 1905 case 0: 1906 hena &= ~((u64)1 << I40E_FILTER_PCTYPE_NONF_IPV6_TCP); 1907 break; 1908 case (RXH_L4_B_0_1 | RXH_L4_B_2_3): 1909 hena |= ((u64)1 << I40E_FILTER_PCTYPE_NONF_IPV6_TCP); 1910 break; 1911 default: 1912 return -EINVAL; 1913 } 1914 break; 1915 case UDP_V4_FLOW: 1916 switch (nfc->data & (RXH_L4_B_0_1 | RXH_L4_B_2_3)) { 1917 case 0: 1918 hena &= ~(((u64)1 << I40E_FILTER_PCTYPE_NONF_IPV4_UDP) | 1919 ((u64)1 << I40E_FILTER_PCTYPE_FRAG_IPV4)); 1920 break; 1921 case (RXH_L4_B_0_1 | RXH_L4_B_2_3): 1922 hena |= (((u64)1 << I40E_FILTER_PCTYPE_NONF_IPV4_UDP) | 1923 ((u64)1 << I40E_FILTER_PCTYPE_FRAG_IPV4)); 1924 break; 1925 default: 1926 return -EINVAL; 1927 } 1928 break; 1929 case UDP_V6_FLOW: 1930 switch (nfc->data & (RXH_L4_B_0_1 | RXH_L4_B_2_3)) { 1931 case 0: 1932 hena &= ~(((u64)1 << I40E_FILTER_PCTYPE_NONF_IPV6_UDP) | 1933 ((u64)1 << I40E_FILTER_PCTYPE_FRAG_IPV6)); 1934 break; 1935 case (RXH_L4_B_0_1 | RXH_L4_B_2_3): 1936 hena |= (((u64)1 << I40E_FILTER_PCTYPE_NONF_IPV6_UDP) | 1937 ((u64)1 << I40E_FILTER_PCTYPE_FRAG_IPV6)); 1938 break; 1939 default: 1940 return -EINVAL; 1941 } 1942 break; 1943 case AH_ESP_V4_FLOW: 1944 case AH_V4_FLOW: 1945 case ESP_V4_FLOW: 1946 case SCTP_V4_FLOW: 1947 if ((nfc->data & RXH_L4_B_0_1) || 1948 (nfc->data & RXH_L4_B_2_3)) 1949 return -EINVAL; 1950 hena |= ((u64)1 << I40E_FILTER_PCTYPE_NONF_IPV4_OTHER); 1951 break; 1952 case AH_ESP_V6_FLOW: 1953 case AH_V6_FLOW: 1954 case ESP_V6_FLOW: 1955 case SCTP_V6_FLOW: 1956 if ((nfc->data & RXH_L4_B_0_1) || 1957 (nfc->data & RXH_L4_B_2_3)) 1958 return -EINVAL; 1959 hena |= ((u64)1 << I40E_FILTER_PCTYPE_NONF_IPV6_OTHER); 1960 break; 1961 case IPV4_FLOW: 1962 hena |= ((u64)1 << I40E_FILTER_PCTYPE_NONF_IPV4_OTHER) | 1963 ((u64)1 << I40E_FILTER_PCTYPE_FRAG_IPV4); 1964 break; 1965 case IPV6_FLOW: 1966 hena |= ((u64)1 << I40E_FILTER_PCTYPE_NONF_IPV6_OTHER) | 1967 ((u64)1 << I40E_FILTER_PCTYPE_FRAG_IPV6); 1968 break; 1969 default: 1970 return -EINVAL; 1971 } 1972 1973 wr32(hw, I40E_PFQF_HENA(0), (u32)hena); 1974 wr32(hw, I40E_PFQF_HENA(1), (u32)(hena >> 32)); 1975 i40e_flush(hw); 1976 1977 return 0; 1978 } 1979 1980 /** 1981 * i40e_match_fdir_input_set - Match a new filter against an existing one 1982 * @rule: The filter already added 1983 * @input: The new filter to comapre against 1984 * 1985 * Returns true if the two input set match 1986 **/ 1987 static bool i40e_match_fdir_input_set(struct i40e_fdir_filter *rule, 1988 struct i40e_fdir_filter *input) 1989 { 1990 if ((rule->dst_ip[0] != input->dst_ip[0]) || 1991 (rule->src_ip[0] != input->src_ip[0]) || 1992 (rule->dst_port != input->dst_port) || 1993 (rule->src_port != input->src_port)) 1994 return false; 1995 return true; 1996 } 1997 1998 /** 1999 * i40e_update_ethtool_fdir_entry - Updates the fdir filter entry 2000 * @vsi: Pointer to the targeted VSI 2001 * @input: The filter to update or NULL to indicate deletion 2002 * @sw_idx: Software index to the filter 2003 * @cmd: The command to get or set Rx flow classification rules 2004 * 2005 * This function updates (or deletes) a Flow Director entry from 2006 * the hlist of the corresponding PF 2007 * 2008 * Returns 0 on success 2009 **/ 2010 static int i40e_update_ethtool_fdir_entry(struct i40e_vsi *vsi, 2011 struct i40e_fdir_filter *input, 2012 u16 sw_idx, 2013 struct ethtool_rxnfc *cmd) 2014 { 2015 struct i40e_fdir_filter *rule, *parent; 2016 struct i40e_pf *pf = vsi->back; 2017 struct hlist_node *node2; 2018 int err = -EINVAL; 2019 2020 parent = NULL; 2021 rule = NULL; 2022 2023 hlist_for_each_entry_safe(rule, node2, 2024 &pf->fdir_filter_list, fdir_node) { 2025 /* hash found, or no matching entry */ 2026 if (rule->fd_id >= sw_idx) 2027 break; 2028 parent = rule; 2029 } 2030 2031 /* if there is an old rule occupying our place remove it */ 2032 if (rule && (rule->fd_id == sw_idx)) { 2033 if (input && !i40e_match_fdir_input_set(rule, input)) 2034 err = i40e_add_del_fdir(vsi, rule, false); 2035 else if (!input) 2036 err = i40e_add_del_fdir(vsi, rule, false); 2037 hlist_del(&rule->fdir_node); 2038 kfree(rule); 2039 pf->fdir_pf_active_filters--; 2040 } 2041 2042 /* If no input this was a delete, err should be 0 if a rule was 2043 * successfully found and removed from the list else -EINVAL 2044 */ 2045 if (!input) 2046 return err; 2047 2048 /* initialize node and set software index */ 2049 INIT_HLIST_NODE(&input->fdir_node); 2050 2051 /* add filter to the list */ 2052 if (parent) 2053 hlist_add_behind(&input->fdir_node, &parent->fdir_node); 2054 else 2055 hlist_add_head(&input->fdir_node, 2056 &pf->fdir_filter_list); 2057 2058 /* update counts */ 2059 pf->fdir_pf_active_filters++; 2060 2061 return 0; 2062 } 2063 2064 /** 2065 * i40e_del_fdir_entry - Deletes a Flow Director filter entry 2066 * @vsi: Pointer to the targeted VSI 2067 * @cmd: The command to get or set Rx flow classification rules 2068 * 2069 * The function removes a Flow Director filter entry from the 2070 * hlist of the corresponding PF 2071 * 2072 * Returns 0 on success 2073 */ 2074 static int i40e_del_fdir_entry(struct i40e_vsi *vsi, 2075 struct ethtool_rxnfc *cmd) 2076 { 2077 struct ethtool_rx_flow_spec *fsp = 2078 (struct ethtool_rx_flow_spec *)&cmd->fs; 2079 struct i40e_pf *pf = vsi->back; 2080 int ret = 0; 2081 2082 if (test_bit(__I40E_RESET_RECOVERY_PENDING, &pf->state) || 2083 test_bit(__I40E_RESET_INTR_RECEIVED, &pf->state)) 2084 return -EBUSY; 2085 2086 if (test_bit(__I40E_FD_FLUSH_REQUESTED, &pf->state)) 2087 return -EBUSY; 2088 2089 ret = i40e_update_ethtool_fdir_entry(vsi, NULL, fsp->location, cmd); 2090 2091 i40e_fdir_check_and_reenable(pf); 2092 return ret; 2093 } 2094 2095 /** 2096 * i40e_add_fdir_ethtool - Add/Remove Flow Director filters 2097 * @vsi: pointer to the targeted VSI 2098 * @cmd: command to get or set RX flow classification rules 2099 * 2100 * Add Flow Director filters for a specific flow spec based on their 2101 * protocol. Returns 0 if the filters were successfully added. 2102 **/ 2103 static int i40e_add_fdir_ethtool(struct i40e_vsi *vsi, 2104 struct ethtool_rxnfc *cmd) 2105 { 2106 struct ethtool_rx_flow_spec *fsp; 2107 struct i40e_fdir_filter *input; 2108 struct i40e_pf *pf; 2109 int ret = -EINVAL; 2110 2111 if (!vsi) 2112 return -EINVAL; 2113 2114 pf = vsi->back; 2115 2116 if (!(pf->flags & I40E_FLAG_FD_SB_ENABLED)) 2117 return -EOPNOTSUPP; 2118 2119 if (pf->auto_disable_flags & I40E_FLAG_FD_SB_ENABLED) 2120 return -ENOSPC; 2121 2122 if (test_bit(__I40E_RESET_RECOVERY_PENDING, &pf->state) || 2123 test_bit(__I40E_RESET_INTR_RECEIVED, &pf->state)) 2124 return -EBUSY; 2125 2126 if (test_bit(__I40E_FD_FLUSH_REQUESTED, &pf->state)) 2127 return -EBUSY; 2128 2129 fsp = (struct ethtool_rx_flow_spec *)&cmd->fs; 2130 2131 if (fsp->location >= (pf->hw.func_caps.fd_filters_best_effort + 2132 pf->hw.func_caps.fd_filters_guaranteed)) { 2133 return -EINVAL; 2134 } 2135 2136 if ((fsp->ring_cookie != RX_CLS_FLOW_DISC) && 2137 (fsp->ring_cookie >= vsi->num_queue_pairs)) 2138 return -EINVAL; 2139 2140 input = kzalloc(sizeof(*input), GFP_KERNEL); 2141 2142 if (!input) 2143 return -ENOMEM; 2144 2145 input->fd_id = fsp->location; 2146 2147 if (fsp->ring_cookie == RX_CLS_FLOW_DISC) 2148 input->dest_ctl = I40E_FILTER_PROGRAM_DESC_DEST_DROP_PACKET; 2149 else 2150 input->dest_ctl = 2151 I40E_FILTER_PROGRAM_DESC_DEST_DIRECT_PACKET_QINDEX; 2152 2153 input->q_index = fsp->ring_cookie; 2154 input->flex_off = 0; 2155 input->pctype = 0; 2156 input->dest_vsi = vsi->id; 2157 input->fd_status = I40E_FILTER_PROGRAM_DESC_FD_STATUS_FD_ID; 2158 input->cnt_index = pf->fd_sb_cnt_idx; 2159 input->flow_type = fsp->flow_type; 2160 input->ip4_proto = fsp->h_u.usr_ip4_spec.proto; 2161 2162 /* Reverse the src and dest notion, since the HW expects them to be from 2163 * Tx perspective where as the input from user is from Rx filter view. 2164 */ 2165 input->dst_port = fsp->h_u.tcp_ip4_spec.psrc; 2166 input->src_port = fsp->h_u.tcp_ip4_spec.pdst; 2167 input->dst_ip[0] = fsp->h_u.tcp_ip4_spec.ip4src; 2168 input->src_ip[0] = fsp->h_u.tcp_ip4_spec.ip4dst; 2169 2170 ret = i40e_add_del_fdir(vsi, input, true); 2171 if (ret) 2172 kfree(input); 2173 else 2174 i40e_update_ethtool_fdir_entry(vsi, input, fsp->location, NULL); 2175 2176 return ret; 2177 } 2178 2179 /** 2180 * i40e_set_rxnfc - command to set RX flow classification rules 2181 * @netdev: network interface device structure 2182 * @cmd: ethtool rxnfc command 2183 * 2184 * Returns Success if the command is supported. 2185 **/ 2186 static int i40e_set_rxnfc(struct net_device *netdev, struct ethtool_rxnfc *cmd) 2187 { 2188 struct i40e_netdev_priv *np = netdev_priv(netdev); 2189 struct i40e_vsi *vsi = np->vsi; 2190 struct i40e_pf *pf = vsi->back; 2191 int ret = -EOPNOTSUPP; 2192 2193 switch (cmd->cmd) { 2194 case ETHTOOL_SRXFH: 2195 ret = i40e_set_rss_hash_opt(pf, cmd); 2196 break; 2197 case ETHTOOL_SRXCLSRLINS: 2198 ret = i40e_add_fdir_ethtool(vsi, cmd); 2199 break; 2200 case ETHTOOL_SRXCLSRLDEL: 2201 ret = i40e_del_fdir_entry(vsi, cmd); 2202 break; 2203 default: 2204 break; 2205 } 2206 2207 return ret; 2208 } 2209 2210 /** 2211 * i40e_max_channels - get Max number of combined channels supported 2212 * @vsi: vsi pointer 2213 **/ 2214 static unsigned int i40e_max_channels(struct i40e_vsi *vsi) 2215 { 2216 /* TODO: This code assumes DCB and FD is disabled for now. */ 2217 return vsi->alloc_queue_pairs; 2218 } 2219 2220 /** 2221 * i40e_get_channels - Get the current channels enabled and max supported etc. 2222 * @netdev: network interface device structure 2223 * @ch: ethtool channels structure 2224 * 2225 * We don't support separate tx and rx queues as channels. The other count 2226 * represents how many queues are being used for control. max_combined counts 2227 * how many queue pairs we can support. They may not be mapped 1 to 1 with 2228 * q_vectors since we support a lot more queue pairs than q_vectors. 2229 **/ 2230 static void i40e_get_channels(struct net_device *dev, 2231 struct ethtool_channels *ch) 2232 { 2233 struct i40e_netdev_priv *np = netdev_priv(dev); 2234 struct i40e_vsi *vsi = np->vsi; 2235 struct i40e_pf *pf = vsi->back; 2236 2237 /* report maximum channels */ 2238 ch->max_combined = i40e_max_channels(vsi); 2239 2240 /* report info for other vector */ 2241 ch->other_count = (pf->flags & I40E_FLAG_FD_SB_ENABLED) ? 1 : 0; 2242 ch->max_other = ch->other_count; 2243 2244 /* Note: This code assumes DCB is disabled for now. */ 2245 ch->combined_count = vsi->num_queue_pairs; 2246 } 2247 2248 /** 2249 * i40e_set_channels - Set the new channels count. 2250 * @netdev: network interface device structure 2251 * @ch: ethtool channels structure 2252 * 2253 * The new channels count may not be the same as requested by the user 2254 * since it gets rounded down to a power of 2 value. 2255 **/ 2256 static int i40e_set_channels(struct net_device *dev, 2257 struct ethtool_channels *ch) 2258 { 2259 struct i40e_netdev_priv *np = netdev_priv(dev); 2260 unsigned int count = ch->combined_count; 2261 struct i40e_vsi *vsi = np->vsi; 2262 struct i40e_pf *pf = vsi->back; 2263 int new_count; 2264 2265 /* We do not support setting channels for any other VSI at present */ 2266 if (vsi->type != I40E_VSI_MAIN) 2267 return -EINVAL; 2268 2269 /* verify they are not requesting separate vectors */ 2270 if (!count || ch->rx_count || ch->tx_count) 2271 return -EINVAL; 2272 2273 /* verify other_count has not changed */ 2274 if (ch->other_count != ((pf->flags & I40E_FLAG_FD_SB_ENABLED) ? 1 : 0)) 2275 return -EINVAL; 2276 2277 /* verify the number of channels does not exceed hardware limits */ 2278 if (count > i40e_max_channels(vsi)) 2279 return -EINVAL; 2280 2281 /* update feature limits from largest to smallest supported values */ 2282 /* TODO: Flow director limit, DCB etc */ 2283 2284 /* cap RSS limit */ 2285 if (count > pf->rss_size_max) 2286 count = pf->rss_size_max; 2287 2288 /* use rss_reconfig to rebuild with new queue count and update traffic 2289 * class queue mapping 2290 */ 2291 new_count = i40e_reconfig_rss_queues(pf, count); 2292 if (new_count > 0) 2293 return 0; 2294 else 2295 return -EINVAL; 2296 } 2297 2298 static const struct ethtool_ops i40e_ethtool_ops = { 2299 .get_settings = i40e_get_settings, 2300 .set_settings = i40e_set_settings, 2301 .get_drvinfo = i40e_get_drvinfo, 2302 .get_regs_len = i40e_get_regs_len, 2303 .get_regs = i40e_get_regs, 2304 .nway_reset = i40e_nway_reset, 2305 .get_link = ethtool_op_get_link, 2306 .get_wol = i40e_get_wol, 2307 .set_wol = i40e_set_wol, 2308 .set_eeprom = i40e_set_eeprom, 2309 .get_eeprom_len = i40e_get_eeprom_len, 2310 .get_eeprom = i40e_get_eeprom, 2311 .get_ringparam = i40e_get_ringparam, 2312 .set_ringparam = i40e_set_ringparam, 2313 .get_pauseparam = i40e_get_pauseparam, 2314 .set_pauseparam = i40e_set_pauseparam, 2315 .get_msglevel = i40e_get_msglevel, 2316 .set_msglevel = i40e_set_msglevel, 2317 .get_rxnfc = i40e_get_rxnfc, 2318 .set_rxnfc = i40e_set_rxnfc, 2319 .self_test = i40e_diag_test, 2320 .get_strings = i40e_get_strings, 2321 .set_phys_id = i40e_set_phys_id, 2322 .get_sset_count = i40e_get_sset_count, 2323 .get_ethtool_stats = i40e_get_ethtool_stats, 2324 .get_coalesce = i40e_get_coalesce, 2325 .set_coalesce = i40e_set_coalesce, 2326 .get_channels = i40e_get_channels, 2327 .set_channels = i40e_set_channels, 2328 .get_ts_info = i40e_get_ts_info, 2329 }; 2330 2331 void i40e_set_ethtool_ops(struct net_device *netdev) 2332 { 2333 netdev->ethtool_ops = &i40e_ethtool_ops; 2334 } 2335