1 /******************************************************************************* 2 * 3 * Intel Ethernet Controller XL710 Family Linux Driver 4 * Copyright(c) 2013 - 2015 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_link_down", stats.tx_dropped_link_down), 117 I40E_PF_STAT("crc_errors", stats.crc_errors), 118 I40E_PF_STAT("illegal_bytes", stats.illegal_bytes), 119 I40E_PF_STAT("mac_local_faults", stats.mac_local_faults), 120 I40E_PF_STAT("mac_remote_faults", stats.mac_remote_faults), 121 I40E_PF_STAT("tx_timeout", tx_timeout_count), 122 I40E_PF_STAT("rx_csum_bad", hw_csum_rx_error), 123 I40E_PF_STAT("rx_length_errors", stats.rx_length_errors), 124 I40E_PF_STAT("link_xon_rx", stats.link_xon_rx), 125 I40E_PF_STAT("link_xoff_rx", stats.link_xoff_rx), 126 I40E_PF_STAT("link_xon_tx", stats.link_xon_tx), 127 I40E_PF_STAT("link_xoff_tx", stats.link_xoff_tx), 128 I40E_PF_STAT("rx_size_64", stats.rx_size_64), 129 I40E_PF_STAT("rx_size_127", stats.rx_size_127), 130 I40E_PF_STAT("rx_size_255", stats.rx_size_255), 131 I40E_PF_STAT("rx_size_511", stats.rx_size_511), 132 I40E_PF_STAT("rx_size_1023", stats.rx_size_1023), 133 I40E_PF_STAT("rx_size_1522", stats.rx_size_1522), 134 I40E_PF_STAT("rx_size_big", stats.rx_size_big), 135 I40E_PF_STAT("tx_size_64", stats.tx_size_64), 136 I40E_PF_STAT("tx_size_127", stats.tx_size_127), 137 I40E_PF_STAT("tx_size_255", stats.tx_size_255), 138 I40E_PF_STAT("tx_size_511", stats.tx_size_511), 139 I40E_PF_STAT("tx_size_1023", stats.tx_size_1023), 140 I40E_PF_STAT("tx_size_1522", stats.tx_size_1522), 141 I40E_PF_STAT("tx_size_big", stats.tx_size_big), 142 I40E_PF_STAT("rx_undersize", stats.rx_undersize), 143 I40E_PF_STAT("rx_fragments", stats.rx_fragments), 144 I40E_PF_STAT("rx_oversize", stats.rx_oversize), 145 I40E_PF_STAT("rx_jabber", stats.rx_jabber), 146 I40E_PF_STAT("VF_admin_queue_requests", vf_aq_requests), 147 I40E_PF_STAT("rx_hwtstamp_cleared", rx_hwtstamp_cleared), 148 I40E_PF_STAT("fdir_flush_cnt", fd_flush_cnt), 149 I40E_PF_STAT("fdir_atr_match", stats.fd_atr_match), 150 I40E_PF_STAT("fdir_sb_match", stats.fd_sb_match), 151 152 /* LPI stats */ 153 I40E_PF_STAT("tx_lpi_status", stats.tx_lpi_status), 154 I40E_PF_STAT("rx_lpi_status", stats.rx_lpi_status), 155 I40E_PF_STAT("tx_lpi_count", stats.tx_lpi_count), 156 I40E_PF_STAT("rx_lpi_count", stats.rx_lpi_count), 157 }; 158 159 #ifdef I40E_FCOE 160 static const struct i40e_stats i40e_gstrings_fcoe_stats[] = { 161 I40E_VSI_STAT("fcoe_bad_fccrc", fcoe_stats.fcoe_bad_fccrc), 162 I40E_VSI_STAT("rx_fcoe_dropped", fcoe_stats.rx_fcoe_dropped), 163 I40E_VSI_STAT("rx_fcoe_packets", fcoe_stats.rx_fcoe_packets), 164 I40E_VSI_STAT("rx_fcoe_dwords", fcoe_stats.rx_fcoe_dwords), 165 I40E_VSI_STAT("fcoe_ddp_count", fcoe_stats.fcoe_ddp_count), 166 I40E_VSI_STAT("fcoe_last_error", fcoe_stats.fcoe_last_error), 167 I40E_VSI_STAT("tx_fcoe_packets", fcoe_stats.tx_fcoe_packets), 168 I40E_VSI_STAT("tx_fcoe_dwords", fcoe_stats.tx_fcoe_dwords), 169 }; 170 171 #endif /* I40E_FCOE */ 172 #define I40E_QUEUE_STATS_LEN(n) \ 173 (((struct i40e_netdev_priv *)netdev_priv((n)))->vsi->num_queue_pairs \ 174 * 2 /* Tx and Rx together */ \ 175 * (sizeof(struct i40e_queue_stats) / sizeof(u64))) 176 #define I40E_GLOBAL_STATS_LEN ARRAY_SIZE(i40e_gstrings_stats) 177 #define I40E_NETDEV_STATS_LEN ARRAY_SIZE(i40e_gstrings_net_stats) 178 #define I40E_MISC_STATS_LEN ARRAY_SIZE(i40e_gstrings_misc_stats) 179 #ifdef I40E_FCOE 180 #define I40E_FCOE_STATS_LEN ARRAY_SIZE(i40e_gstrings_fcoe_stats) 181 #define I40E_VSI_STATS_LEN(n) (I40E_NETDEV_STATS_LEN + \ 182 I40E_FCOE_STATS_LEN + \ 183 I40E_MISC_STATS_LEN + \ 184 I40E_QUEUE_STATS_LEN((n))) 185 #else 186 #define I40E_VSI_STATS_LEN(n) (I40E_NETDEV_STATS_LEN + \ 187 I40E_MISC_STATS_LEN + \ 188 I40E_QUEUE_STATS_LEN((n))) 189 #endif /* I40E_FCOE */ 190 #define I40E_PFC_STATS_LEN ( \ 191 (FIELD_SIZEOF(struct i40e_pf, stats.priority_xoff_rx) + \ 192 FIELD_SIZEOF(struct i40e_pf, stats.priority_xon_rx) + \ 193 FIELD_SIZEOF(struct i40e_pf, stats.priority_xoff_tx) + \ 194 FIELD_SIZEOF(struct i40e_pf, stats.priority_xon_tx) + \ 195 FIELD_SIZEOF(struct i40e_pf, stats.priority_xon_2_xoff)) \ 196 / sizeof(u64)) 197 #define I40E_VEB_STATS_LEN ARRAY_SIZE(i40e_gstrings_veb_stats) 198 #define I40E_PF_STATS_LEN(n) (I40E_GLOBAL_STATS_LEN + \ 199 I40E_PFC_STATS_LEN + \ 200 I40E_VSI_STATS_LEN((n))) 201 202 enum i40e_ethtool_test_id { 203 I40E_ETH_TEST_REG = 0, 204 I40E_ETH_TEST_EEPROM, 205 I40E_ETH_TEST_INTR, 206 I40E_ETH_TEST_LOOPBACK, 207 I40E_ETH_TEST_LINK, 208 }; 209 210 static const char i40e_gstrings_test[][ETH_GSTRING_LEN] = { 211 "Register test (offline)", 212 "Eeprom test (offline)", 213 "Interrupt test (offline)", 214 "Loopback test (offline)", 215 "Link test (on/offline)" 216 }; 217 218 #define I40E_TEST_LEN (sizeof(i40e_gstrings_test) / ETH_GSTRING_LEN) 219 220 static const char i40e_priv_flags_strings[][ETH_GSTRING_LEN] = { 221 "NPAR", 222 }; 223 224 #define I40E_PRIV_FLAGS_STR_LEN \ 225 (sizeof(i40e_priv_flags_strings) / ETH_GSTRING_LEN) 226 227 /** 228 * i40e_partition_setting_complaint - generic complaint for MFP restriction 229 * @pf: the PF struct 230 **/ 231 static void i40e_partition_setting_complaint(struct i40e_pf *pf) 232 { 233 dev_info(&pf->pdev->dev, 234 "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"); 235 } 236 237 /** 238 * i40e_get_settings_link_up - Get the Link settings for when link is up 239 * @hw: hw structure 240 * @ecmd: ethtool command to fill in 241 * @netdev: network interface device structure 242 * 243 **/ 244 static void i40e_get_settings_link_up(struct i40e_hw *hw, 245 struct ethtool_cmd *ecmd, 246 struct net_device *netdev) 247 { 248 struct i40e_link_status *hw_link_info = &hw->phy.link_info; 249 u32 link_speed = hw_link_info->link_speed; 250 251 /* Initialize supported and advertised settings based on phy settings */ 252 switch (hw_link_info->phy_type) { 253 case I40E_PHY_TYPE_40GBASE_CR4: 254 case I40E_PHY_TYPE_40GBASE_CR4_CU: 255 ecmd->supported = SUPPORTED_Autoneg | 256 SUPPORTED_40000baseCR4_Full; 257 ecmd->advertising = ADVERTISED_Autoneg | 258 ADVERTISED_40000baseCR4_Full; 259 break; 260 case I40E_PHY_TYPE_XLAUI: 261 case I40E_PHY_TYPE_XLPPI: 262 case I40E_PHY_TYPE_40GBASE_AOC: 263 ecmd->supported = SUPPORTED_40000baseCR4_Full; 264 break; 265 case I40E_PHY_TYPE_40GBASE_KR4: 266 ecmd->supported = SUPPORTED_Autoneg | 267 SUPPORTED_40000baseKR4_Full; 268 ecmd->advertising = ADVERTISED_Autoneg | 269 ADVERTISED_40000baseKR4_Full; 270 break; 271 case I40E_PHY_TYPE_40GBASE_SR4: 272 ecmd->supported = SUPPORTED_40000baseSR4_Full; 273 break; 274 case I40E_PHY_TYPE_40GBASE_LR4: 275 ecmd->supported = SUPPORTED_40000baseLR4_Full; 276 break; 277 case I40E_PHY_TYPE_20GBASE_KR2: 278 ecmd->supported = SUPPORTED_Autoneg | 279 SUPPORTED_20000baseKR2_Full; 280 ecmd->advertising = ADVERTISED_Autoneg | 281 ADVERTISED_20000baseKR2_Full; 282 break; 283 case I40E_PHY_TYPE_10GBASE_KX4: 284 ecmd->supported = SUPPORTED_Autoneg | 285 SUPPORTED_10000baseKX4_Full; 286 ecmd->advertising = ADVERTISED_Autoneg | 287 ADVERTISED_10000baseKX4_Full; 288 break; 289 case I40E_PHY_TYPE_10GBASE_KR: 290 ecmd->supported = SUPPORTED_Autoneg | 291 SUPPORTED_10000baseKR_Full; 292 ecmd->advertising = ADVERTISED_Autoneg | 293 ADVERTISED_10000baseKR_Full; 294 break; 295 case I40E_PHY_TYPE_10GBASE_SR: 296 case I40E_PHY_TYPE_10GBASE_LR: 297 case I40E_PHY_TYPE_1000BASE_SX: 298 case I40E_PHY_TYPE_1000BASE_LX: 299 ecmd->supported = SUPPORTED_10000baseT_Full | 300 SUPPORTED_1000baseT_Full; 301 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_10GB) 302 ecmd->advertising |= ADVERTISED_10000baseT_Full; 303 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_1GB) 304 ecmd->advertising |= ADVERTISED_1000baseT_Full; 305 break; 306 case I40E_PHY_TYPE_1000BASE_KX: 307 ecmd->supported = SUPPORTED_Autoneg | 308 SUPPORTED_1000baseKX_Full; 309 ecmd->advertising = ADVERTISED_Autoneg | 310 ADVERTISED_1000baseKX_Full; 311 break; 312 case I40E_PHY_TYPE_10GBASE_T: 313 case I40E_PHY_TYPE_1000BASE_T: 314 case I40E_PHY_TYPE_100BASE_TX: 315 ecmd->supported = SUPPORTED_Autoneg | 316 SUPPORTED_10000baseT_Full | 317 SUPPORTED_1000baseT_Full | 318 SUPPORTED_100baseT_Full; 319 ecmd->advertising = ADVERTISED_Autoneg; 320 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_10GB) 321 ecmd->advertising |= ADVERTISED_10000baseT_Full; 322 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_1GB) 323 ecmd->advertising |= ADVERTISED_1000baseT_Full; 324 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_100MB) 325 ecmd->advertising |= ADVERTISED_100baseT_Full; 326 break; 327 case I40E_PHY_TYPE_10GBASE_CR1_CU: 328 case I40E_PHY_TYPE_10GBASE_CR1: 329 ecmd->supported = SUPPORTED_Autoneg | 330 SUPPORTED_10000baseT_Full; 331 ecmd->advertising = ADVERTISED_Autoneg | 332 ADVERTISED_10000baseT_Full; 333 break; 334 case I40E_PHY_TYPE_XAUI: 335 case I40E_PHY_TYPE_XFI: 336 case I40E_PHY_TYPE_SFI: 337 case I40E_PHY_TYPE_10GBASE_SFPP_CU: 338 case I40E_PHY_TYPE_10GBASE_AOC: 339 ecmd->supported = SUPPORTED_10000baseT_Full; 340 break; 341 case I40E_PHY_TYPE_SGMII: 342 ecmd->supported = SUPPORTED_Autoneg | 343 SUPPORTED_1000baseT_Full | 344 SUPPORTED_100baseT_Full; 345 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_1GB) 346 ecmd->advertising |= ADVERTISED_1000baseT_Full; 347 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_100MB) 348 ecmd->advertising |= ADVERTISED_100baseT_Full; 349 break; 350 default: 351 /* if we got here and link is up something bad is afoot */ 352 netdev_info(netdev, "WARNING: Link is up but PHY type 0x%x is not recognized.\n", 353 hw_link_info->phy_type); 354 } 355 356 /* Set speed and duplex */ 357 switch (link_speed) { 358 case I40E_LINK_SPEED_40GB: 359 ethtool_cmd_speed_set(ecmd, SPEED_40000); 360 break; 361 case I40E_LINK_SPEED_20GB: 362 ethtool_cmd_speed_set(ecmd, SPEED_20000); 363 break; 364 case I40E_LINK_SPEED_10GB: 365 ethtool_cmd_speed_set(ecmd, SPEED_10000); 366 break; 367 case I40E_LINK_SPEED_1GB: 368 ethtool_cmd_speed_set(ecmd, SPEED_1000); 369 break; 370 case I40E_LINK_SPEED_100MB: 371 ethtool_cmd_speed_set(ecmd, SPEED_100); 372 break; 373 default: 374 break; 375 } 376 ecmd->duplex = DUPLEX_FULL; 377 } 378 379 /** 380 * i40e_get_settings_link_down - Get the Link settings for when link is down 381 * @hw: hw structure 382 * @ecmd: ethtool command to fill in 383 * 384 * Reports link settings that can be determined when link is down 385 **/ 386 static void i40e_get_settings_link_down(struct i40e_hw *hw, 387 struct ethtool_cmd *ecmd) 388 { 389 struct i40e_link_status *hw_link_info = &hw->phy.link_info; 390 391 /* link is down and the driver needs to fall back on 392 * device ID to determine what kinds of info to display, 393 * it's mostly a guess that may change when link is up 394 */ 395 switch (hw->device_id) { 396 case I40E_DEV_ID_QSFP_A: 397 case I40E_DEV_ID_QSFP_B: 398 case I40E_DEV_ID_QSFP_C: 399 /* pluggable QSFP */ 400 ecmd->supported = SUPPORTED_40000baseSR4_Full | 401 SUPPORTED_40000baseCR4_Full | 402 SUPPORTED_40000baseLR4_Full; 403 ecmd->advertising = ADVERTISED_40000baseSR4_Full | 404 ADVERTISED_40000baseCR4_Full | 405 ADVERTISED_40000baseLR4_Full; 406 break; 407 case I40E_DEV_ID_KX_B: 408 /* backplane 40G */ 409 ecmd->supported = SUPPORTED_40000baseKR4_Full; 410 ecmd->advertising = ADVERTISED_40000baseKR4_Full; 411 break; 412 case I40E_DEV_ID_KX_C: 413 /* backplane 10G */ 414 ecmd->supported = SUPPORTED_10000baseKR_Full; 415 ecmd->advertising = ADVERTISED_10000baseKR_Full; 416 break; 417 case I40E_DEV_ID_10G_BASE_T: 418 ecmd->supported = SUPPORTED_10000baseT_Full | 419 SUPPORTED_1000baseT_Full | 420 SUPPORTED_100baseT_Full; 421 /* Figure out what has been requested */ 422 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_10GB) 423 ecmd->advertising |= ADVERTISED_10000baseT_Full; 424 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_1GB) 425 ecmd->advertising |= ADVERTISED_1000baseT_Full; 426 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_100MB) 427 ecmd->advertising |= ADVERTISED_100baseT_Full; 428 break; 429 case I40E_DEV_ID_20G_KR2: 430 /* backplane 20G */ 431 ecmd->supported = SUPPORTED_20000baseKR2_Full; 432 ecmd->advertising = ADVERTISED_20000baseKR2_Full; 433 break; 434 default: 435 /* all the rest are 10G/1G */ 436 ecmd->supported = SUPPORTED_10000baseT_Full | 437 SUPPORTED_1000baseT_Full; 438 /* Figure out what has been requested */ 439 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_10GB) 440 ecmd->advertising |= ADVERTISED_10000baseT_Full; 441 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_1GB) 442 ecmd->advertising |= ADVERTISED_1000baseT_Full; 443 break; 444 } 445 446 /* With no link speed and duplex are unknown */ 447 ethtool_cmd_speed_set(ecmd, SPEED_UNKNOWN); 448 ecmd->duplex = DUPLEX_UNKNOWN; 449 } 450 451 /** 452 * i40e_get_settings - Get Link Speed and Duplex settings 453 * @netdev: network interface device structure 454 * @ecmd: ethtool command 455 * 456 * Reports speed/duplex settings based on media_type 457 **/ 458 static int i40e_get_settings(struct net_device *netdev, 459 struct ethtool_cmd *ecmd) 460 { 461 struct i40e_netdev_priv *np = netdev_priv(netdev); 462 struct i40e_pf *pf = np->vsi->back; 463 struct i40e_hw *hw = &pf->hw; 464 struct i40e_link_status *hw_link_info = &hw->phy.link_info; 465 bool link_up = hw_link_info->link_info & I40E_AQ_LINK_UP; 466 467 if (link_up) 468 i40e_get_settings_link_up(hw, ecmd, netdev); 469 else 470 i40e_get_settings_link_down(hw, ecmd); 471 472 /* Now set the settings that don't rely on link being up/down */ 473 474 /* Set autoneg settings */ 475 ecmd->autoneg = ((hw_link_info->an_info & I40E_AQ_AN_COMPLETED) ? 476 AUTONEG_ENABLE : AUTONEG_DISABLE); 477 478 switch (hw->phy.media_type) { 479 case I40E_MEDIA_TYPE_BACKPLANE: 480 ecmd->supported |= SUPPORTED_Autoneg | 481 SUPPORTED_Backplane; 482 ecmd->advertising |= ADVERTISED_Autoneg | 483 ADVERTISED_Backplane; 484 ecmd->port = PORT_NONE; 485 break; 486 case I40E_MEDIA_TYPE_BASET: 487 ecmd->supported |= SUPPORTED_TP; 488 ecmd->advertising |= ADVERTISED_TP; 489 ecmd->port = PORT_TP; 490 break; 491 case I40E_MEDIA_TYPE_DA: 492 case I40E_MEDIA_TYPE_CX4: 493 ecmd->supported |= SUPPORTED_FIBRE; 494 ecmd->advertising |= ADVERTISED_FIBRE; 495 ecmd->port = PORT_DA; 496 break; 497 case I40E_MEDIA_TYPE_FIBER: 498 ecmd->supported |= SUPPORTED_FIBRE; 499 ecmd->port = PORT_FIBRE; 500 break; 501 case I40E_MEDIA_TYPE_UNKNOWN: 502 default: 503 ecmd->port = PORT_OTHER; 504 break; 505 } 506 507 /* Set transceiver */ 508 ecmd->transceiver = XCVR_EXTERNAL; 509 510 /* Set flow control settings */ 511 ecmd->supported |= SUPPORTED_Pause; 512 513 switch (hw->fc.requested_mode) { 514 case I40E_FC_FULL: 515 ecmd->advertising |= ADVERTISED_Pause; 516 break; 517 case I40E_FC_TX_PAUSE: 518 ecmd->advertising |= ADVERTISED_Asym_Pause; 519 break; 520 case I40E_FC_RX_PAUSE: 521 ecmd->advertising |= (ADVERTISED_Pause | 522 ADVERTISED_Asym_Pause); 523 break; 524 default: 525 ecmd->advertising &= ~(ADVERTISED_Pause | 526 ADVERTISED_Asym_Pause); 527 break; 528 } 529 530 return 0; 531 } 532 533 /** 534 * i40e_set_settings - Set Speed and Duplex 535 * @netdev: network interface device structure 536 * @ecmd: ethtool command 537 * 538 * Set speed/duplex per media_types advertised/forced 539 **/ 540 static int i40e_set_settings(struct net_device *netdev, 541 struct ethtool_cmd *ecmd) 542 { 543 struct i40e_netdev_priv *np = netdev_priv(netdev); 544 struct i40e_aq_get_phy_abilities_resp abilities; 545 struct i40e_aq_set_phy_config config; 546 struct i40e_pf *pf = np->vsi->back; 547 struct i40e_vsi *vsi = np->vsi; 548 struct i40e_hw *hw = &pf->hw; 549 struct ethtool_cmd safe_ecmd; 550 i40e_status status = 0; 551 bool change = false; 552 int err = 0; 553 u8 autoneg; 554 u32 advertise; 555 556 /* Changing port settings is not supported if this isn't the 557 * port's controlling PF 558 */ 559 if (hw->partition_id != 1) { 560 i40e_partition_setting_complaint(pf); 561 return -EOPNOTSUPP; 562 } 563 564 if (vsi != pf->vsi[pf->lan_vsi]) 565 return -EOPNOTSUPP; 566 567 if (hw->phy.media_type != I40E_MEDIA_TYPE_BASET && 568 hw->phy.media_type != I40E_MEDIA_TYPE_FIBER && 569 hw->phy.media_type != I40E_MEDIA_TYPE_BACKPLANE && 570 hw->phy.link_info.link_info & I40E_AQ_LINK_UP) 571 return -EOPNOTSUPP; 572 573 /* get our own copy of the bits to check against */ 574 memset(&safe_ecmd, 0, sizeof(struct ethtool_cmd)); 575 i40e_get_settings(netdev, &safe_ecmd); 576 577 /* save autoneg and speed out of ecmd */ 578 autoneg = ecmd->autoneg; 579 advertise = ecmd->advertising; 580 581 /* set autoneg and speed back to what they currently are */ 582 ecmd->autoneg = safe_ecmd.autoneg; 583 ecmd->advertising = safe_ecmd.advertising; 584 585 ecmd->cmd = safe_ecmd.cmd; 586 /* If ecmd and safe_ecmd are not the same now, then they are 587 * trying to set something that we do not support 588 */ 589 if (memcmp(ecmd, &safe_ecmd, sizeof(struct ethtool_cmd))) 590 return -EOPNOTSUPP; 591 592 while (test_bit(__I40E_CONFIG_BUSY, &vsi->state)) 593 usleep_range(1000, 2000); 594 595 /* Get the current phy config */ 596 status = i40e_aq_get_phy_capabilities(hw, false, false, &abilities, 597 NULL); 598 if (status) 599 return -EAGAIN; 600 601 /* Copy abilities to config in case autoneg is not 602 * set below 603 */ 604 memset(&config, 0, sizeof(struct i40e_aq_set_phy_config)); 605 config.abilities = abilities.abilities; 606 607 /* Check autoneg */ 608 if (autoneg == AUTONEG_ENABLE) { 609 /* If autoneg is not supported, return error */ 610 if (!(safe_ecmd.supported & SUPPORTED_Autoneg)) { 611 netdev_info(netdev, "Autoneg not supported on this phy\n"); 612 return -EINVAL; 613 } 614 /* If autoneg was not already enabled */ 615 if (!(hw->phy.link_info.an_info & I40E_AQ_AN_COMPLETED)) { 616 config.abilities = abilities.abilities | 617 I40E_AQ_PHY_ENABLE_AN; 618 change = true; 619 } 620 } else { 621 /* If autoneg is supported 10GBASE_T is the only phy that 622 * can disable it, so otherwise return error 623 */ 624 if (safe_ecmd.supported & SUPPORTED_Autoneg && 625 hw->phy.link_info.phy_type != I40E_PHY_TYPE_10GBASE_T) { 626 netdev_info(netdev, "Autoneg cannot be disabled on this phy\n"); 627 return -EINVAL; 628 } 629 /* If autoneg is currently enabled */ 630 if (hw->phy.link_info.an_info & I40E_AQ_AN_COMPLETED) { 631 config.abilities = abilities.abilities & 632 ~I40E_AQ_PHY_ENABLE_AN; 633 change = true; 634 } 635 } 636 637 if (advertise & ~safe_ecmd.supported) 638 return -EINVAL; 639 640 if (advertise & ADVERTISED_100baseT_Full) 641 config.link_speed |= I40E_LINK_SPEED_100MB; 642 if (advertise & ADVERTISED_1000baseT_Full || 643 advertise & ADVERTISED_1000baseKX_Full) 644 config.link_speed |= I40E_LINK_SPEED_1GB; 645 if (advertise & ADVERTISED_10000baseT_Full || 646 advertise & ADVERTISED_10000baseKX4_Full || 647 advertise & ADVERTISED_10000baseKR_Full) 648 config.link_speed |= I40E_LINK_SPEED_10GB; 649 if (advertise & ADVERTISED_20000baseKR2_Full) 650 config.link_speed |= I40E_LINK_SPEED_20GB; 651 if (advertise & ADVERTISED_40000baseKR4_Full || 652 advertise & ADVERTISED_40000baseCR4_Full || 653 advertise & ADVERTISED_40000baseSR4_Full || 654 advertise & ADVERTISED_40000baseLR4_Full) 655 config.link_speed |= I40E_LINK_SPEED_40GB; 656 657 if (change || (abilities.link_speed != config.link_speed)) { 658 /* copy over the rest of the abilities */ 659 config.phy_type = abilities.phy_type; 660 config.eee_capability = abilities.eee_capability; 661 config.eeer = abilities.eeer_val; 662 config.low_power_ctrl = abilities.d3_lpan; 663 664 /* save the requested speeds */ 665 hw->phy.link_info.requested_speeds = config.link_speed; 666 /* set link and auto negotiation so changes take effect */ 667 config.abilities |= I40E_AQ_PHY_ENABLE_ATOMIC_LINK; 668 /* If link is up put link down */ 669 if (hw->phy.link_info.link_info & I40E_AQ_LINK_UP) { 670 /* Tell the OS link is going down, the link will go 671 * back up when fw says it is ready asynchronously 672 */ 673 netdev_info(netdev, "PHY settings change requested, NIC Link is going down.\n"); 674 netif_carrier_off(netdev); 675 netif_tx_stop_all_queues(netdev); 676 } 677 678 /* make the aq call */ 679 status = i40e_aq_set_phy_config(hw, &config, NULL); 680 if (status) { 681 netdev_info(netdev, "Set phy config failed with error %d.\n", 682 status); 683 return -EAGAIN; 684 } 685 686 status = i40e_aq_get_link_info(hw, true, NULL, NULL); 687 if (status) 688 netdev_info(netdev, "Updating link info failed with error %d\n", 689 status); 690 691 } else { 692 netdev_info(netdev, "Nothing changed, exiting without setting anything.\n"); 693 } 694 695 return err; 696 } 697 698 static int i40e_nway_reset(struct net_device *netdev) 699 { 700 /* restart autonegotiation */ 701 struct i40e_netdev_priv *np = netdev_priv(netdev); 702 struct i40e_pf *pf = np->vsi->back; 703 struct i40e_hw *hw = &pf->hw; 704 bool link_up = hw->phy.link_info.link_info & I40E_AQ_LINK_UP; 705 i40e_status ret = 0; 706 707 ret = i40e_aq_set_link_restart_an(hw, link_up, NULL); 708 if (ret) { 709 netdev_info(netdev, "link restart failed, aq_err=%d\n", 710 pf->hw.aq.asq_last_status); 711 return -EIO; 712 } 713 714 return 0; 715 } 716 717 /** 718 * i40e_get_pauseparam - Get Flow Control status 719 * Return tx/rx-pause status 720 **/ 721 static void i40e_get_pauseparam(struct net_device *netdev, 722 struct ethtool_pauseparam *pause) 723 { 724 struct i40e_netdev_priv *np = netdev_priv(netdev); 725 struct i40e_pf *pf = np->vsi->back; 726 struct i40e_hw *hw = &pf->hw; 727 struct i40e_link_status *hw_link_info = &hw->phy.link_info; 728 struct i40e_dcbx_config *dcbx_cfg = &hw->local_dcbx_config; 729 730 pause->autoneg = 731 ((hw_link_info->an_info & I40E_AQ_AN_COMPLETED) ? 732 AUTONEG_ENABLE : AUTONEG_DISABLE); 733 734 /* PFC enabled so report LFC as off */ 735 if (dcbx_cfg->pfc.pfcenable) { 736 pause->rx_pause = 0; 737 pause->tx_pause = 0; 738 return; 739 } 740 741 if (hw->fc.current_mode == I40E_FC_RX_PAUSE) { 742 pause->rx_pause = 1; 743 } else if (hw->fc.current_mode == I40E_FC_TX_PAUSE) { 744 pause->tx_pause = 1; 745 } else if (hw->fc.current_mode == I40E_FC_FULL) { 746 pause->rx_pause = 1; 747 pause->tx_pause = 1; 748 } 749 } 750 751 /** 752 * i40e_set_pauseparam - Set Flow Control parameter 753 * @netdev: network interface device structure 754 * @pause: return tx/rx flow control status 755 **/ 756 static int i40e_set_pauseparam(struct net_device *netdev, 757 struct ethtool_pauseparam *pause) 758 { 759 struct i40e_netdev_priv *np = netdev_priv(netdev); 760 struct i40e_pf *pf = np->vsi->back; 761 struct i40e_vsi *vsi = np->vsi; 762 struct i40e_hw *hw = &pf->hw; 763 struct i40e_link_status *hw_link_info = &hw->phy.link_info; 764 struct i40e_dcbx_config *dcbx_cfg = &hw->local_dcbx_config; 765 bool link_up = hw_link_info->link_info & I40E_AQ_LINK_UP; 766 i40e_status status; 767 u8 aq_failures; 768 int err = 0; 769 770 /* Changing the port's flow control is not supported if this isn't the 771 * port's controlling PF 772 */ 773 if (hw->partition_id != 1) { 774 i40e_partition_setting_complaint(pf); 775 return -EOPNOTSUPP; 776 } 777 778 if (vsi != pf->vsi[pf->lan_vsi]) 779 return -EOPNOTSUPP; 780 781 if (pause->autoneg != ((hw_link_info->an_info & I40E_AQ_AN_COMPLETED) ? 782 AUTONEG_ENABLE : AUTONEG_DISABLE)) { 783 netdev_info(netdev, "To change autoneg please use: ethtool -s <dev> autoneg <on|off>\n"); 784 return -EOPNOTSUPP; 785 } 786 787 /* If we have link and don't have autoneg */ 788 if (!test_bit(__I40E_DOWN, &pf->state) && 789 !(hw_link_info->an_info & I40E_AQ_AN_COMPLETED)) { 790 /* Send message that it might not necessarily work*/ 791 netdev_info(netdev, "Autoneg did not complete so changing settings may not result in an actual change.\n"); 792 } 793 794 if (dcbx_cfg->pfc.pfcenable) { 795 netdev_info(netdev, 796 "Priority flow control enabled. Cannot set link flow control.\n"); 797 return -EOPNOTSUPP; 798 } 799 800 if (pause->rx_pause && pause->tx_pause) 801 hw->fc.requested_mode = I40E_FC_FULL; 802 else if (pause->rx_pause && !pause->tx_pause) 803 hw->fc.requested_mode = I40E_FC_RX_PAUSE; 804 else if (!pause->rx_pause && pause->tx_pause) 805 hw->fc.requested_mode = I40E_FC_TX_PAUSE; 806 else if (!pause->rx_pause && !pause->tx_pause) 807 hw->fc.requested_mode = I40E_FC_NONE; 808 else 809 return -EINVAL; 810 811 /* Tell the OS link is going down, the link will go back up when fw 812 * says it is ready asynchronously 813 */ 814 netdev_info(netdev, "Flow control settings change requested, NIC Link is going down.\n"); 815 netif_carrier_off(netdev); 816 netif_tx_stop_all_queues(netdev); 817 818 /* Set the fc mode and only restart an if link is up*/ 819 status = i40e_set_fc(hw, &aq_failures, link_up); 820 821 if (aq_failures & I40E_SET_FC_AQ_FAIL_GET) { 822 netdev_info(netdev, "Set fc failed on the get_phy_capabilities call with error %d and status %d\n", 823 status, hw->aq.asq_last_status); 824 err = -EAGAIN; 825 } 826 if (aq_failures & I40E_SET_FC_AQ_FAIL_SET) { 827 netdev_info(netdev, "Set fc failed on the set_phy_config call with error %d and status %d\n", 828 status, hw->aq.asq_last_status); 829 err = -EAGAIN; 830 } 831 if (aq_failures & I40E_SET_FC_AQ_FAIL_UPDATE) { 832 netdev_info(netdev, "Set fc failed on the get_link_info call with error %d and status %d\n", 833 status, hw->aq.asq_last_status); 834 err = -EAGAIN; 835 } 836 837 if (!test_bit(__I40E_DOWN, &pf->state)) { 838 /* Give it a little more time to try to come back */ 839 msleep(75); 840 if (!test_bit(__I40E_DOWN, &pf->state)) 841 return i40e_nway_reset(netdev); 842 } 843 844 return err; 845 } 846 847 static u32 i40e_get_msglevel(struct net_device *netdev) 848 { 849 struct i40e_netdev_priv *np = netdev_priv(netdev); 850 struct i40e_pf *pf = np->vsi->back; 851 852 return pf->msg_enable; 853 } 854 855 static void i40e_set_msglevel(struct net_device *netdev, u32 data) 856 { 857 struct i40e_netdev_priv *np = netdev_priv(netdev); 858 struct i40e_pf *pf = np->vsi->back; 859 860 if (I40E_DEBUG_USER & data) 861 pf->hw.debug_mask = data; 862 pf->msg_enable = data; 863 } 864 865 static int i40e_get_regs_len(struct net_device *netdev) 866 { 867 int reg_count = 0; 868 int i; 869 870 for (i = 0; i40e_reg_list[i].offset != 0; i++) 871 reg_count += i40e_reg_list[i].elements; 872 873 return reg_count * sizeof(u32); 874 } 875 876 static void i40e_get_regs(struct net_device *netdev, struct ethtool_regs *regs, 877 void *p) 878 { 879 struct i40e_netdev_priv *np = netdev_priv(netdev); 880 struct i40e_pf *pf = np->vsi->back; 881 struct i40e_hw *hw = &pf->hw; 882 u32 *reg_buf = p; 883 int i, j, ri; 884 u32 reg; 885 886 /* Tell ethtool which driver-version-specific regs output we have. 887 * 888 * At some point, if we have ethtool doing special formatting of 889 * this data, it will rely on this version number to know how to 890 * interpret things. Hence, this needs to be updated if/when the 891 * diags register table is changed. 892 */ 893 regs->version = 1; 894 895 /* loop through the diags reg table for what to print */ 896 ri = 0; 897 for (i = 0; i40e_reg_list[i].offset != 0; i++) { 898 for (j = 0; j < i40e_reg_list[i].elements; j++) { 899 reg = i40e_reg_list[i].offset 900 + (j * i40e_reg_list[i].stride); 901 reg_buf[ri++] = rd32(hw, reg); 902 } 903 } 904 905 } 906 907 static int i40e_get_eeprom(struct net_device *netdev, 908 struct ethtool_eeprom *eeprom, u8 *bytes) 909 { 910 struct i40e_netdev_priv *np = netdev_priv(netdev); 911 struct i40e_hw *hw = &np->vsi->back->hw; 912 struct i40e_pf *pf = np->vsi->back; 913 int ret_val = 0, len, offset; 914 u8 *eeprom_buff; 915 u16 i, sectors; 916 bool last; 917 u32 magic; 918 919 #define I40E_NVM_SECTOR_SIZE 4096 920 if (eeprom->len == 0) 921 return -EINVAL; 922 923 /* check for NVMUpdate access method */ 924 magic = hw->vendor_id | (hw->device_id << 16); 925 if (eeprom->magic && eeprom->magic != magic) { 926 struct i40e_nvm_access *cmd; 927 int errno; 928 929 /* make sure it is the right magic for NVMUpdate */ 930 if ((eeprom->magic >> 16) != hw->device_id) 931 return -EINVAL; 932 933 cmd = (struct i40e_nvm_access *)eeprom; 934 ret_val = i40e_nvmupd_command(hw, cmd, bytes, &errno); 935 if (ret_val && 936 ((hw->aq.asq_last_status != I40E_AQ_RC_EACCES) || 937 (hw->debug_mask & I40E_DEBUG_NVM))) 938 dev_info(&pf->pdev->dev, 939 "NVMUpdate read failed err=%d status=0x%x errno=%d module=%d offset=0x%x size=%d\n", 940 ret_val, hw->aq.asq_last_status, errno, 941 (u8)(cmd->config & I40E_NVM_MOD_PNT_MASK), 942 cmd->offset, cmd->data_size); 943 944 return errno; 945 } 946 947 /* normal ethtool get_eeprom support */ 948 eeprom->magic = hw->vendor_id | (hw->device_id << 16); 949 950 eeprom_buff = kzalloc(eeprom->len, GFP_KERNEL); 951 if (!eeprom_buff) 952 return -ENOMEM; 953 954 ret_val = i40e_acquire_nvm(hw, I40E_RESOURCE_READ); 955 if (ret_val) { 956 dev_info(&pf->pdev->dev, 957 "Failed Acquiring NVM resource for read err=%d status=0x%x\n", 958 ret_val, hw->aq.asq_last_status); 959 goto free_buff; 960 } 961 962 sectors = eeprom->len / I40E_NVM_SECTOR_SIZE; 963 sectors += (eeprom->len % I40E_NVM_SECTOR_SIZE) ? 1 : 0; 964 len = I40E_NVM_SECTOR_SIZE; 965 last = false; 966 for (i = 0; i < sectors; i++) { 967 if (i == (sectors - 1)) { 968 len = eeprom->len - (I40E_NVM_SECTOR_SIZE * i); 969 last = true; 970 } 971 offset = eeprom->offset + (I40E_NVM_SECTOR_SIZE * i), 972 ret_val = i40e_aq_read_nvm(hw, 0x0, offset, len, 973 (u8 *)eeprom_buff + (I40E_NVM_SECTOR_SIZE * i), 974 last, NULL); 975 if (ret_val && hw->aq.asq_last_status == I40E_AQ_RC_EPERM) { 976 dev_info(&pf->pdev->dev, 977 "read NVM failed, invalid offset 0x%x\n", 978 offset); 979 break; 980 } else if (ret_val && 981 hw->aq.asq_last_status == I40E_AQ_RC_EACCES) { 982 dev_info(&pf->pdev->dev, 983 "read NVM failed, access, offset 0x%x\n", 984 offset); 985 break; 986 } else if (ret_val) { 987 dev_info(&pf->pdev->dev, 988 "read NVM failed offset %d err=%d status=0x%x\n", 989 offset, ret_val, hw->aq.asq_last_status); 990 break; 991 } 992 } 993 994 i40e_release_nvm(hw); 995 memcpy(bytes, (u8 *)eeprom_buff, eeprom->len); 996 free_buff: 997 kfree(eeprom_buff); 998 return ret_val; 999 } 1000 1001 static int i40e_get_eeprom_len(struct net_device *netdev) 1002 { 1003 struct i40e_netdev_priv *np = netdev_priv(netdev); 1004 struct i40e_hw *hw = &np->vsi->back->hw; 1005 u32 val; 1006 1007 val = (rd32(hw, I40E_GLPCI_LBARCTRL) 1008 & I40E_GLPCI_LBARCTRL_FL_SIZE_MASK) 1009 >> I40E_GLPCI_LBARCTRL_FL_SIZE_SHIFT; 1010 /* register returns value in power of 2, 64Kbyte chunks. */ 1011 val = (64 * 1024) * (1 << val); 1012 return val; 1013 } 1014 1015 static int i40e_set_eeprom(struct net_device *netdev, 1016 struct ethtool_eeprom *eeprom, u8 *bytes) 1017 { 1018 struct i40e_netdev_priv *np = netdev_priv(netdev); 1019 struct i40e_hw *hw = &np->vsi->back->hw; 1020 struct i40e_pf *pf = np->vsi->back; 1021 struct i40e_nvm_access *cmd; 1022 int ret_val = 0; 1023 int errno; 1024 u32 magic; 1025 1026 /* normal ethtool set_eeprom is not supported */ 1027 magic = hw->vendor_id | (hw->device_id << 16); 1028 if (eeprom->magic == magic) 1029 return -EOPNOTSUPP; 1030 1031 /* check for NVMUpdate access method */ 1032 if (!eeprom->magic || (eeprom->magic >> 16) != hw->device_id) 1033 return -EINVAL; 1034 1035 if (test_bit(__I40E_RESET_RECOVERY_PENDING, &pf->state) || 1036 test_bit(__I40E_RESET_INTR_RECEIVED, &pf->state)) 1037 return -EBUSY; 1038 1039 cmd = (struct i40e_nvm_access *)eeprom; 1040 ret_val = i40e_nvmupd_command(hw, cmd, bytes, &errno); 1041 if (ret_val && 1042 ((hw->aq.asq_last_status != I40E_AQ_RC_EPERM && 1043 hw->aq.asq_last_status != I40E_AQ_RC_EBUSY) || 1044 (hw->debug_mask & I40E_DEBUG_NVM))) 1045 dev_info(&pf->pdev->dev, 1046 "NVMUpdate write failed err=%d status=0x%x errno=%d module=%d offset=0x%x size=%d\n", 1047 ret_val, hw->aq.asq_last_status, errno, 1048 (u8)(cmd->config & I40E_NVM_MOD_PNT_MASK), 1049 cmd->offset, cmd->data_size); 1050 1051 return errno; 1052 } 1053 1054 static void i40e_get_drvinfo(struct net_device *netdev, 1055 struct ethtool_drvinfo *drvinfo) 1056 { 1057 struct i40e_netdev_priv *np = netdev_priv(netdev); 1058 struct i40e_vsi *vsi = np->vsi; 1059 struct i40e_pf *pf = vsi->back; 1060 1061 strlcpy(drvinfo->driver, i40e_driver_name, sizeof(drvinfo->driver)); 1062 strlcpy(drvinfo->version, i40e_driver_version_str, 1063 sizeof(drvinfo->version)); 1064 strlcpy(drvinfo->fw_version, i40e_fw_version_str(&pf->hw), 1065 sizeof(drvinfo->fw_version)); 1066 strlcpy(drvinfo->bus_info, pci_name(pf->pdev), 1067 sizeof(drvinfo->bus_info)); 1068 drvinfo->n_priv_flags = I40E_PRIV_FLAGS_STR_LEN; 1069 } 1070 1071 static void i40e_get_ringparam(struct net_device *netdev, 1072 struct ethtool_ringparam *ring) 1073 { 1074 struct i40e_netdev_priv *np = netdev_priv(netdev); 1075 struct i40e_pf *pf = np->vsi->back; 1076 struct i40e_vsi *vsi = pf->vsi[pf->lan_vsi]; 1077 1078 ring->rx_max_pending = I40E_MAX_NUM_DESCRIPTORS; 1079 ring->tx_max_pending = I40E_MAX_NUM_DESCRIPTORS; 1080 ring->rx_mini_max_pending = 0; 1081 ring->rx_jumbo_max_pending = 0; 1082 ring->rx_pending = vsi->rx_rings[0]->count; 1083 ring->tx_pending = vsi->tx_rings[0]->count; 1084 ring->rx_mini_pending = 0; 1085 ring->rx_jumbo_pending = 0; 1086 } 1087 1088 static int i40e_set_ringparam(struct net_device *netdev, 1089 struct ethtool_ringparam *ring) 1090 { 1091 struct i40e_ring *tx_rings = NULL, *rx_rings = NULL; 1092 struct i40e_netdev_priv *np = netdev_priv(netdev); 1093 struct i40e_vsi *vsi = np->vsi; 1094 struct i40e_pf *pf = vsi->back; 1095 u32 new_rx_count, new_tx_count; 1096 int i, err = 0; 1097 1098 if ((ring->rx_mini_pending) || (ring->rx_jumbo_pending)) 1099 return -EINVAL; 1100 1101 if (ring->tx_pending > I40E_MAX_NUM_DESCRIPTORS || 1102 ring->tx_pending < I40E_MIN_NUM_DESCRIPTORS || 1103 ring->rx_pending > I40E_MAX_NUM_DESCRIPTORS || 1104 ring->rx_pending < I40E_MIN_NUM_DESCRIPTORS) { 1105 netdev_info(netdev, 1106 "Descriptors requested (Tx: %d / Rx: %d) out of range [%d-%d]\n", 1107 ring->tx_pending, ring->rx_pending, 1108 I40E_MIN_NUM_DESCRIPTORS, I40E_MAX_NUM_DESCRIPTORS); 1109 return -EINVAL; 1110 } 1111 1112 new_tx_count = ALIGN(ring->tx_pending, I40E_REQ_DESCRIPTOR_MULTIPLE); 1113 new_rx_count = ALIGN(ring->rx_pending, I40E_REQ_DESCRIPTOR_MULTIPLE); 1114 1115 /* if nothing to do return success */ 1116 if ((new_tx_count == vsi->tx_rings[0]->count) && 1117 (new_rx_count == vsi->rx_rings[0]->count)) 1118 return 0; 1119 1120 while (test_and_set_bit(__I40E_CONFIG_BUSY, &pf->state)) 1121 usleep_range(1000, 2000); 1122 1123 if (!netif_running(vsi->netdev)) { 1124 /* simple case - set for the next time the netdev is started */ 1125 for (i = 0; i < vsi->num_queue_pairs; i++) { 1126 vsi->tx_rings[i]->count = new_tx_count; 1127 vsi->rx_rings[i]->count = new_rx_count; 1128 } 1129 goto done; 1130 } 1131 1132 /* We can't just free everything and then setup again, 1133 * because the ISRs in MSI-X mode get passed pointers 1134 * to the Tx and Rx ring structs. 1135 */ 1136 1137 /* alloc updated Tx resources */ 1138 if (new_tx_count != vsi->tx_rings[0]->count) { 1139 netdev_info(netdev, 1140 "Changing Tx descriptor count from %d to %d.\n", 1141 vsi->tx_rings[0]->count, new_tx_count); 1142 tx_rings = kcalloc(vsi->alloc_queue_pairs, 1143 sizeof(struct i40e_ring), GFP_KERNEL); 1144 if (!tx_rings) { 1145 err = -ENOMEM; 1146 goto done; 1147 } 1148 1149 for (i = 0; i < vsi->num_queue_pairs; i++) { 1150 /* clone ring and setup updated count */ 1151 tx_rings[i] = *vsi->tx_rings[i]; 1152 tx_rings[i].count = new_tx_count; 1153 err = i40e_setup_tx_descriptors(&tx_rings[i]); 1154 if (err) { 1155 while (i) { 1156 i--; 1157 i40e_free_tx_resources(&tx_rings[i]); 1158 } 1159 kfree(tx_rings); 1160 tx_rings = NULL; 1161 1162 goto done; 1163 } 1164 } 1165 } 1166 1167 /* alloc updated Rx resources */ 1168 if (new_rx_count != vsi->rx_rings[0]->count) { 1169 netdev_info(netdev, 1170 "Changing Rx descriptor count from %d to %d\n", 1171 vsi->rx_rings[0]->count, new_rx_count); 1172 rx_rings = kcalloc(vsi->alloc_queue_pairs, 1173 sizeof(struct i40e_ring), GFP_KERNEL); 1174 if (!rx_rings) { 1175 err = -ENOMEM; 1176 goto free_tx; 1177 } 1178 1179 for (i = 0; i < vsi->num_queue_pairs; i++) { 1180 /* clone ring and setup updated count */ 1181 rx_rings[i] = *vsi->rx_rings[i]; 1182 rx_rings[i].count = new_rx_count; 1183 err = i40e_setup_rx_descriptors(&rx_rings[i]); 1184 if (err) { 1185 while (i) { 1186 i--; 1187 i40e_free_rx_resources(&rx_rings[i]); 1188 } 1189 kfree(rx_rings); 1190 rx_rings = NULL; 1191 1192 goto free_tx; 1193 } 1194 } 1195 } 1196 1197 /* Bring interface down, copy in the new ring info, 1198 * then restore the interface 1199 */ 1200 i40e_down(vsi); 1201 1202 if (tx_rings) { 1203 for (i = 0; i < vsi->num_queue_pairs; i++) { 1204 i40e_free_tx_resources(vsi->tx_rings[i]); 1205 *vsi->tx_rings[i] = tx_rings[i]; 1206 } 1207 kfree(tx_rings); 1208 tx_rings = NULL; 1209 } 1210 1211 if (rx_rings) { 1212 for (i = 0; i < vsi->num_queue_pairs; i++) { 1213 i40e_free_rx_resources(vsi->rx_rings[i]); 1214 *vsi->rx_rings[i] = rx_rings[i]; 1215 } 1216 kfree(rx_rings); 1217 rx_rings = NULL; 1218 } 1219 1220 i40e_up(vsi); 1221 1222 free_tx: 1223 /* error cleanup if the Rx allocations failed after getting Tx */ 1224 if (tx_rings) { 1225 for (i = 0; i < vsi->num_queue_pairs; i++) 1226 i40e_free_tx_resources(&tx_rings[i]); 1227 kfree(tx_rings); 1228 tx_rings = NULL; 1229 } 1230 1231 done: 1232 clear_bit(__I40E_CONFIG_BUSY, &pf->state); 1233 1234 return err; 1235 } 1236 1237 static int i40e_get_sset_count(struct net_device *netdev, int sset) 1238 { 1239 struct i40e_netdev_priv *np = netdev_priv(netdev); 1240 struct i40e_vsi *vsi = np->vsi; 1241 struct i40e_pf *pf = vsi->back; 1242 1243 switch (sset) { 1244 case ETH_SS_TEST: 1245 return I40E_TEST_LEN; 1246 case ETH_SS_STATS: 1247 if (vsi == pf->vsi[pf->lan_vsi] && pf->hw.partition_id == 1) { 1248 int len = I40E_PF_STATS_LEN(netdev); 1249 1250 if (pf->lan_veb != I40E_NO_VEB) 1251 len += I40E_VEB_STATS_LEN; 1252 return len; 1253 } else { 1254 return I40E_VSI_STATS_LEN(netdev); 1255 } 1256 case ETH_SS_PRIV_FLAGS: 1257 return I40E_PRIV_FLAGS_STR_LEN; 1258 default: 1259 return -EOPNOTSUPP; 1260 } 1261 } 1262 1263 static void i40e_get_ethtool_stats(struct net_device *netdev, 1264 struct ethtool_stats *stats, u64 *data) 1265 { 1266 struct i40e_netdev_priv *np = netdev_priv(netdev); 1267 struct i40e_ring *tx_ring, *rx_ring; 1268 struct i40e_vsi *vsi = np->vsi; 1269 struct i40e_pf *pf = vsi->back; 1270 int i = 0; 1271 char *p; 1272 int j; 1273 struct rtnl_link_stats64 *net_stats = i40e_get_vsi_stats_struct(vsi); 1274 unsigned int start; 1275 1276 i40e_update_stats(vsi); 1277 1278 for (j = 0; j < I40E_NETDEV_STATS_LEN; j++) { 1279 p = (char *)net_stats + i40e_gstrings_net_stats[j].stat_offset; 1280 data[i++] = (i40e_gstrings_net_stats[j].sizeof_stat == 1281 sizeof(u64)) ? *(u64 *)p : *(u32 *)p; 1282 } 1283 for (j = 0; j < I40E_MISC_STATS_LEN; j++) { 1284 p = (char *)vsi + i40e_gstrings_misc_stats[j].stat_offset; 1285 data[i++] = (i40e_gstrings_misc_stats[j].sizeof_stat == 1286 sizeof(u64)) ? *(u64 *)p : *(u32 *)p; 1287 } 1288 #ifdef I40E_FCOE 1289 for (j = 0; j < I40E_FCOE_STATS_LEN; j++) { 1290 p = (char *)vsi + i40e_gstrings_fcoe_stats[j].stat_offset; 1291 data[i++] = (i40e_gstrings_fcoe_stats[j].sizeof_stat == 1292 sizeof(u64)) ? *(u64 *)p : *(u32 *)p; 1293 } 1294 #endif 1295 rcu_read_lock(); 1296 for (j = 0; j < vsi->num_queue_pairs; j++) { 1297 tx_ring = ACCESS_ONCE(vsi->tx_rings[j]); 1298 1299 if (!tx_ring) 1300 continue; 1301 1302 /* process Tx ring statistics */ 1303 do { 1304 start = u64_stats_fetch_begin_irq(&tx_ring->syncp); 1305 data[i] = tx_ring->stats.packets; 1306 data[i + 1] = tx_ring->stats.bytes; 1307 } while (u64_stats_fetch_retry_irq(&tx_ring->syncp, start)); 1308 i += 2; 1309 1310 /* Rx ring is the 2nd half of the queue pair */ 1311 rx_ring = &tx_ring[1]; 1312 do { 1313 start = u64_stats_fetch_begin_irq(&rx_ring->syncp); 1314 data[i] = rx_ring->stats.packets; 1315 data[i + 1] = rx_ring->stats.bytes; 1316 } while (u64_stats_fetch_retry_irq(&rx_ring->syncp, start)); 1317 i += 2; 1318 } 1319 rcu_read_unlock(); 1320 if (vsi != pf->vsi[pf->lan_vsi] || pf->hw.partition_id != 1) 1321 return; 1322 1323 if (pf->lan_veb != I40E_NO_VEB) { 1324 struct i40e_veb *veb = pf->veb[pf->lan_veb]; 1325 for (j = 0; j < I40E_VEB_STATS_LEN; j++) { 1326 p = (char *)veb; 1327 p += i40e_gstrings_veb_stats[j].stat_offset; 1328 data[i++] = (i40e_gstrings_veb_stats[j].sizeof_stat == 1329 sizeof(u64)) ? *(u64 *)p : *(u32 *)p; 1330 } 1331 } 1332 for (j = 0; j < I40E_GLOBAL_STATS_LEN; j++) { 1333 p = (char *)pf + i40e_gstrings_stats[j].stat_offset; 1334 data[i++] = (i40e_gstrings_stats[j].sizeof_stat == 1335 sizeof(u64)) ? *(u64 *)p : *(u32 *)p; 1336 } 1337 for (j = 0; j < I40E_MAX_USER_PRIORITY; j++) { 1338 data[i++] = pf->stats.priority_xon_tx[j]; 1339 data[i++] = pf->stats.priority_xoff_tx[j]; 1340 } 1341 for (j = 0; j < I40E_MAX_USER_PRIORITY; j++) { 1342 data[i++] = pf->stats.priority_xon_rx[j]; 1343 data[i++] = pf->stats.priority_xoff_rx[j]; 1344 } 1345 for (j = 0; j < I40E_MAX_USER_PRIORITY; j++) 1346 data[i++] = pf->stats.priority_xon_2_xoff[j]; 1347 } 1348 1349 static void i40e_get_strings(struct net_device *netdev, u32 stringset, 1350 u8 *data) 1351 { 1352 struct i40e_netdev_priv *np = netdev_priv(netdev); 1353 struct i40e_vsi *vsi = np->vsi; 1354 struct i40e_pf *pf = vsi->back; 1355 char *p = (char *)data; 1356 int i; 1357 1358 switch (stringset) { 1359 case ETH_SS_TEST: 1360 for (i = 0; i < I40E_TEST_LEN; i++) { 1361 memcpy(data, i40e_gstrings_test[i], ETH_GSTRING_LEN); 1362 data += ETH_GSTRING_LEN; 1363 } 1364 break; 1365 case ETH_SS_STATS: 1366 for (i = 0; i < I40E_NETDEV_STATS_LEN; i++) { 1367 snprintf(p, ETH_GSTRING_LEN, "%s", 1368 i40e_gstrings_net_stats[i].stat_string); 1369 p += ETH_GSTRING_LEN; 1370 } 1371 for (i = 0; i < I40E_MISC_STATS_LEN; i++) { 1372 snprintf(p, ETH_GSTRING_LEN, "%s", 1373 i40e_gstrings_misc_stats[i].stat_string); 1374 p += ETH_GSTRING_LEN; 1375 } 1376 #ifdef I40E_FCOE 1377 for (i = 0; i < I40E_FCOE_STATS_LEN; i++) { 1378 snprintf(p, ETH_GSTRING_LEN, "%s", 1379 i40e_gstrings_fcoe_stats[i].stat_string); 1380 p += ETH_GSTRING_LEN; 1381 } 1382 #endif 1383 for (i = 0; i < vsi->num_queue_pairs; i++) { 1384 snprintf(p, ETH_GSTRING_LEN, "tx-%u.tx_packets", i); 1385 p += ETH_GSTRING_LEN; 1386 snprintf(p, ETH_GSTRING_LEN, "tx-%u.tx_bytes", i); 1387 p += ETH_GSTRING_LEN; 1388 snprintf(p, ETH_GSTRING_LEN, "rx-%u.rx_packets", i); 1389 p += ETH_GSTRING_LEN; 1390 snprintf(p, ETH_GSTRING_LEN, "rx-%u.rx_bytes", i); 1391 p += ETH_GSTRING_LEN; 1392 } 1393 if (vsi != pf->vsi[pf->lan_vsi] || pf->hw.partition_id != 1) 1394 return; 1395 1396 if (pf->lan_veb != I40E_NO_VEB) { 1397 for (i = 0; i < I40E_VEB_STATS_LEN; i++) { 1398 snprintf(p, ETH_GSTRING_LEN, "veb.%s", 1399 i40e_gstrings_veb_stats[i].stat_string); 1400 p += ETH_GSTRING_LEN; 1401 } 1402 } 1403 for (i = 0; i < I40E_GLOBAL_STATS_LEN; i++) { 1404 snprintf(p, ETH_GSTRING_LEN, "port.%s", 1405 i40e_gstrings_stats[i].stat_string); 1406 p += ETH_GSTRING_LEN; 1407 } 1408 for (i = 0; i < I40E_MAX_USER_PRIORITY; i++) { 1409 snprintf(p, ETH_GSTRING_LEN, 1410 "port.tx_priority_%u_xon", i); 1411 p += ETH_GSTRING_LEN; 1412 snprintf(p, ETH_GSTRING_LEN, 1413 "port.tx_priority_%u_xoff", i); 1414 p += ETH_GSTRING_LEN; 1415 } 1416 for (i = 0; i < I40E_MAX_USER_PRIORITY; i++) { 1417 snprintf(p, ETH_GSTRING_LEN, 1418 "port.rx_priority_%u_xon", i); 1419 p += ETH_GSTRING_LEN; 1420 snprintf(p, ETH_GSTRING_LEN, 1421 "port.rx_priority_%u_xoff", i); 1422 p += ETH_GSTRING_LEN; 1423 } 1424 for (i = 0; i < I40E_MAX_USER_PRIORITY; i++) { 1425 snprintf(p, ETH_GSTRING_LEN, 1426 "port.rx_priority_%u_xon_2_xoff", i); 1427 p += ETH_GSTRING_LEN; 1428 } 1429 /* BUG_ON(p - data != I40E_STATS_LEN * ETH_GSTRING_LEN); */ 1430 break; 1431 case ETH_SS_PRIV_FLAGS: 1432 for (i = 0; i < I40E_PRIV_FLAGS_STR_LEN; i++) { 1433 memcpy(data, i40e_priv_flags_strings[i], 1434 ETH_GSTRING_LEN); 1435 data += ETH_GSTRING_LEN; 1436 } 1437 break; 1438 default: 1439 break; 1440 } 1441 } 1442 1443 static int i40e_get_ts_info(struct net_device *dev, 1444 struct ethtool_ts_info *info) 1445 { 1446 struct i40e_pf *pf = i40e_netdev_to_pf(dev); 1447 1448 /* only report HW timestamping if PTP is enabled */ 1449 if (!(pf->flags & I40E_FLAG_PTP)) 1450 return ethtool_op_get_ts_info(dev, info); 1451 1452 info->so_timestamping = SOF_TIMESTAMPING_TX_SOFTWARE | 1453 SOF_TIMESTAMPING_RX_SOFTWARE | 1454 SOF_TIMESTAMPING_SOFTWARE | 1455 SOF_TIMESTAMPING_TX_HARDWARE | 1456 SOF_TIMESTAMPING_RX_HARDWARE | 1457 SOF_TIMESTAMPING_RAW_HARDWARE; 1458 1459 if (pf->ptp_clock) 1460 info->phc_index = ptp_clock_index(pf->ptp_clock); 1461 else 1462 info->phc_index = -1; 1463 1464 info->tx_types = (1 << HWTSTAMP_TX_OFF) | (1 << HWTSTAMP_TX_ON); 1465 1466 info->rx_filters = (1 << HWTSTAMP_FILTER_NONE) | 1467 (1 << HWTSTAMP_FILTER_PTP_V1_L4_SYNC) | 1468 (1 << HWTSTAMP_FILTER_PTP_V1_L4_DELAY_REQ) | 1469 (1 << HWTSTAMP_FILTER_PTP_V2_EVENT) | 1470 (1 << HWTSTAMP_FILTER_PTP_V2_L2_EVENT) | 1471 (1 << HWTSTAMP_FILTER_PTP_V2_L4_EVENT) | 1472 (1 << HWTSTAMP_FILTER_PTP_V2_SYNC) | 1473 (1 << HWTSTAMP_FILTER_PTP_V2_L2_SYNC) | 1474 (1 << HWTSTAMP_FILTER_PTP_V2_L4_SYNC) | 1475 (1 << HWTSTAMP_FILTER_PTP_V2_DELAY_REQ) | 1476 (1 << HWTSTAMP_FILTER_PTP_V2_L2_DELAY_REQ) | 1477 (1 << HWTSTAMP_FILTER_PTP_V2_L4_DELAY_REQ); 1478 1479 return 0; 1480 } 1481 1482 static int i40e_link_test(struct net_device *netdev, u64 *data) 1483 { 1484 struct i40e_netdev_priv *np = netdev_priv(netdev); 1485 struct i40e_pf *pf = np->vsi->back; 1486 1487 netif_info(pf, hw, netdev, "link test\n"); 1488 if (i40e_get_link_status(&pf->hw)) 1489 *data = 0; 1490 else 1491 *data = 1; 1492 1493 return *data; 1494 } 1495 1496 static int i40e_reg_test(struct net_device *netdev, u64 *data) 1497 { 1498 struct i40e_netdev_priv *np = netdev_priv(netdev); 1499 struct i40e_pf *pf = np->vsi->back; 1500 1501 netif_info(pf, hw, netdev, "register test\n"); 1502 *data = i40e_diag_reg_test(&pf->hw); 1503 1504 return *data; 1505 } 1506 1507 static int i40e_eeprom_test(struct net_device *netdev, u64 *data) 1508 { 1509 struct i40e_netdev_priv *np = netdev_priv(netdev); 1510 struct i40e_pf *pf = np->vsi->back; 1511 1512 netif_info(pf, hw, netdev, "eeprom test\n"); 1513 *data = i40e_diag_eeprom_test(&pf->hw); 1514 1515 /* forcebly clear the NVM Update state machine */ 1516 pf->hw.nvmupd_state = I40E_NVMUPD_STATE_INIT; 1517 1518 return *data; 1519 } 1520 1521 static int i40e_intr_test(struct net_device *netdev, u64 *data) 1522 { 1523 struct i40e_netdev_priv *np = netdev_priv(netdev); 1524 struct i40e_pf *pf = np->vsi->back; 1525 u16 swc_old = pf->sw_int_count; 1526 1527 netif_info(pf, hw, netdev, "interrupt test\n"); 1528 wr32(&pf->hw, I40E_PFINT_DYN_CTL0, 1529 (I40E_PFINT_DYN_CTL0_INTENA_MASK | 1530 I40E_PFINT_DYN_CTL0_SWINT_TRIG_MASK | 1531 I40E_PFINT_DYN_CTL0_ITR_INDX_MASK | 1532 I40E_PFINT_DYN_CTL0_SW_ITR_INDX_ENA_MASK | 1533 I40E_PFINT_DYN_CTL0_SW_ITR_INDX_MASK)); 1534 usleep_range(1000, 2000); 1535 *data = (swc_old == pf->sw_int_count); 1536 1537 return *data; 1538 } 1539 1540 static int i40e_loopback_test(struct net_device *netdev, u64 *data) 1541 { 1542 struct i40e_netdev_priv *np = netdev_priv(netdev); 1543 struct i40e_pf *pf = np->vsi->back; 1544 1545 netif_info(pf, hw, netdev, "loopback test not implemented\n"); 1546 *data = 0; 1547 1548 return *data; 1549 } 1550 1551 static void i40e_diag_test(struct net_device *netdev, 1552 struct ethtool_test *eth_test, u64 *data) 1553 { 1554 struct i40e_netdev_priv *np = netdev_priv(netdev); 1555 bool if_running = netif_running(netdev); 1556 struct i40e_pf *pf = np->vsi->back; 1557 1558 if (eth_test->flags == ETH_TEST_FL_OFFLINE) { 1559 /* Offline tests */ 1560 netif_info(pf, drv, netdev, "offline testing starting\n"); 1561 1562 set_bit(__I40E_TESTING, &pf->state); 1563 /* If the device is online then take it offline */ 1564 if (if_running) 1565 /* indicate we're in test mode */ 1566 dev_close(netdev); 1567 else 1568 i40e_do_reset(pf, (1 << __I40E_PF_RESET_REQUESTED)); 1569 1570 /* Link test performed before hardware reset 1571 * so autoneg doesn't interfere with test result 1572 */ 1573 if (i40e_link_test(netdev, &data[I40E_ETH_TEST_LINK])) 1574 eth_test->flags |= ETH_TEST_FL_FAILED; 1575 1576 if (i40e_eeprom_test(netdev, &data[I40E_ETH_TEST_EEPROM])) 1577 eth_test->flags |= ETH_TEST_FL_FAILED; 1578 1579 if (i40e_intr_test(netdev, &data[I40E_ETH_TEST_INTR])) 1580 eth_test->flags |= ETH_TEST_FL_FAILED; 1581 1582 if (i40e_loopback_test(netdev, &data[I40E_ETH_TEST_LOOPBACK])) 1583 eth_test->flags |= ETH_TEST_FL_FAILED; 1584 1585 /* run reg test last, a reset is required after it */ 1586 if (i40e_reg_test(netdev, &data[I40E_ETH_TEST_REG])) 1587 eth_test->flags |= ETH_TEST_FL_FAILED; 1588 1589 clear_bit(__I40E_TESTING, &pf->state); 1590 i40e_do_reset(pf, (1 << __I40E_PF_RESET_REQUESTED)); 1591 1592 if (if_running) 1593 dev_open(netdev); 1594 } else { 1595 /* Online tests */ 1596 netif_info(pf, drv, netdev, "online testing starting\n"); 1597 1598 if (i40e_link_test(netdev, &data[I40E_ETH_TEST_LINK])) 1599 eth_test->flags |= ETH_TEST_FL_FAILED; 1600 1601 /* Offline only tests, not run in online; pass by default */ 1602 data[I40E_ETH_TEST_REG] = 0; 1603 data[I40E_ETH_TEST_EEPROM] = 0; 1604 data[I40E_ETH_TEST_INTR] = 0; 1605 data[I40E_ETH_TEST_LOOPBACK] = 0; 1606 } 1607 1608 netif_info(pf, drv, netdev, "testing finished\n"); 1609 } 1610 1611 static void i40e_get_wol(struct net_device *netdev, 1612 struct ethtool_wolinfo *wol) 1613 { 1614 struct i40e_netdev_priv *np = netdev_priv(netdev); 1615 struct i40e_pf *pf = np->vsi->back; 1616 struct i40e_hw *hw = &pf->hw; 1617 u16 wol_nvm_bits; 1618 1619 /* NVM bit on means WoL disabled for the port */ 1620 i40e_read_nvm_word(hw, I40E_SR_NVM_WAKE_ON_LAN, &wol_nvm_bits); 1621 if ((1 << hw->port) & wol_nvm_bits || hw->partition_id != 1) { 1622 wol->supported = 0; 1623 wol->wolopts = 0; 1624 } else { 1625 wol->supported = WAKE_MAGIC; 1626 wol->wolopts = (pf->wol_en ? WAKE_MAGIC : 0); 1627 } 1628 } 1629 1630 /** 1631 * i40e_set_wol - set the WakeOnLAN configuration 1632 * @netdev: the netdev in question 1633 * @wol: the ethtool WoL setting data 1634 **/ 1635 static int i40e_set_wol(struct net_device *netdev, struct ethtool_wolinfo *wol) 1636 { 1637 struct i40e_netdev_priv *np = netdev_priv(netdev); 1638 struct i40e_pf *pf = np->vsi->back; 1639 struct i40e_vsi *vsi = np->vsi; 1640 struct i40e_hw *hw = &pf->hw; 1641 u16 wol_nvm_bits; 1642 1643 /* WoL not supported if this isn't the controlling PF on the port */ 1644 if (hw->partition_id != 1) { 1645 i40e_partition_setting_complaint(pf); 1646 return -EOPNOTSUPP; 1647 } 1648 1649 if (vsi != pf->vsi[pf->lan_vsi]) 1650 return -EOPNOTSUPP; 1651 1652 /* NVM bit on means WoL disabled for the port */ 1653 i40e_read_nvm_word(hw, I40E_SR_NVM_WAKE_ON_LAN, &wol_nvm_bits); 1654 if (((1 << hw->port) & wol_nvm_bits)) 1655 return -EOPNOTSUPP; 1656 1657 /* only magic packet is supported */ 1658 if (wol->wolopts && (wol->wolopts != WAKE_MAGIC)) 1659 return -EOPNOTSUPP; 1660 1661 /* is this a new value? */ 1662 if (pf->wol_en != !!wol->wolopts) { 1663 pf->wol_en = !!wol->wolopts; 1664 device_set_wakeup_enable(&pf->pdev->dev, pf->wol_en); 1665 } 1666 1667 return 0; 1668 } 1669 1670 static int i40e_set_phys_id(struct net_device *netdev, 1671 enum ethtool_phys_id_state state) 1672 { 1673 struct i40e_netdev_priv *np = netdev_priv(netdev); 1674 struct i40e_pf *pf = np->vsi->back; 1675 struct i40e_hw *hw = &pf->hw; 1676 int blink_freq = 2; 1677 1678 switch (state) { 1679 case ETHTOOL_ID_ACTIVE: 1680 pf->led_status = i40e_led_get(hw); 1681 return blink_freq; 1682 case ETHTOOL_ID_ON: 1683 i40e_led_set(hw, 0xF, false); 1684 break; 1685 case ETHTOOL_ID_OFF: 1686 i40e_led_set(hw, 0x0, false); 1687 break; 1688 case ETHTOOL_ID_INACTIVE: 1689 i40e_led_set(hw, pf->led_status, false); 1690 break; 1691 default: 1692 break; 1693 } 1694 1695 return 0; 1696 } 1697 1698 /* NOTE: i40e hardware uses a conversion factor of 2 for Interrupt 1699 * Throttle Rate (ITR) ie. ITR(1) = 2us ITR(10) = 20 us, and also 1700 * 125us (8000 interrupts per second) == ITR(62) 1701 */ 1702 1703 static int i40e_get_coalesce(struct net_device *netdev, 1704 struct ethtool_coalesce *ec) 1705 { 1706 struct i40e_netdev_priv *np = netdev_priv(netdev); 1707 struct i40e_vsi *vsi = np->vsi; 1708 1709 ec->tx_max_coalesced_frames_irq = vsi->work_limit; 1710 ec->rx_max_coalesced_frames_irq = vsi->work_limit; 1711 1712 if (ITR_IS_DYNAMIC(vsi->rx_itr_setting)) 1713 ec->use_adaptive_rx_coalesce = 1; 1714 1715 if (ITR_IS_DYNAMIC(vsi->tx_itr_setting)) 1716 ec->use_adaptive_tx_coalesce = 1; 1717 1718 ec->rx_coalesce_usecs = vsi->rx_itr_setting & ~I40E_ITR_DYNAMIC; 1719 ec->tx_coalesce_usecs = vsi->tx_itr_setting & ~I40E_ITR_DYNAMIC; 1720 1721 return 0; 1722 } 1723 1724 static int i40e_set_coalesce(struct net_device *netdev, 1725 struct ethtool_coalesce *ec) 1726 { 1727 struct i40e_netdev_priv *np = netdev_priv(netdev); 1728 struct i40e_q_vector *q_vector; 1729 struct i40e_vsi *vsi = np->vsi; 1730 struct i40e_pf *pf = vsi->back; 1731 struct i40e_hw *hw = &pf->hw; 1732 u16 vector; 1733 int i; 1734 1735 if (ec->tx_max_coalesced_frames_irq || ec->rx_max_coalesced_frames_irq) 1736 vsi->work_limit = ec->tx_max_coalesced_frames_irq; 1737 1738 vector = vsi->base_vector; 1739 if ((ec->rx_coalesce_usecs >= (I40E_MIN_ITR << 1)) && 1740 (ec->rx_coalesce_usecs <= (I40E_MAX_ITR << 1))) { 1741 vsi->rx_itr_setting = ec->rx_coalesce_usecs; 1742 } else if (ec->rx_coalesce_usecs == 0) { 1743 vsi->rx_itr_setting = ec->rx_coalesce_usecs; 1744 if (ec->use_adaptive_rx_coalesce) 1745 netif_info(pf, drv, netdev, "rx-usecs=0, need to disable adaptive-rx for a complete disable\n"); 1746 } else { 1747 netif_info(pf, drv, netdev, "Invalid value, rx-usecs range is 0-8160\n"); 1748 return -EINVAL; 1749 } 1750 1751 if ((ec->tx_coalesce_usecs >= (I40E_MIN_ITR << 1)) && 1752 (ec->tx_coalesce_usecs <= (I40E_MAX_ITR << 1))) { 1753 vsi->tx_itr_setting = ec->tx_coalesce_usecs; 1754 } else if (ec->tx_coalesce_usecs == 0) { 1755 vsi->tx_itr_setting = ec->tx_coalesce_usecs; 1756 if (ec->use_adaptive_tx_coalesce) 1757 netif_info(pf, drv, netdev, "tx-usecs=0, need to disable adaptive-tx for a complete disable\n"); 1758 } else { 1759 netif_info(pf, drv, netdev, 1760 "Invalid value, tx-usecs range is 0-8160\n"); 1761 return -EINVAL; 1762 } 1763 1764 if (ec->use_adaptive_rx_coalesce) 1765 vsi->rx_itr_setting |= I40E_ITR_DYNAMIC; 1766 else 1767 vsi->rx_itr_setting &= ~I40E_ITR_DYNAMIC; 1768 1769 if (ec->use_adaptive_tx_coalesce) 1770 vsi->tx_itr_setting |= I40E_ITR_DYNAMIC; 1771 else 1772 vsi->tx_itr_setting &= ~I40E_ITR_DYNAMIC; 1773 1774 for (i = 0; i < vsi->num_q_vectors; i++, vector++) { 1775 q_vector = vsi->q_vectors[i]; 1776 q_vector->rx.itr = ITR_TO_REG(vsi->rx_itr_setting); 1777 wr32(hw, I40E_PFINT_ITRN(0, vector - 1), q_vector->rx.itr); 1778 q_vector->tx.itr = ITR_TO_REG(vsi->tx_itr_setting); 1779 wr32(hw, I40E_PFINT_ITRN(1, vector - 1), q_vector->tx.itr); 1780 i40e_flush(hw); 1781 } 1782 1783 return 0; 1784 } 1785 1786 /** 1787 * i40e_get_rss_hash_opts - Get RSS hash Input Set for each flow type 1788 * @pf: pointer to the physical function struct 1789 * @cmd: ethtool rxnfc command 1790 * 1791 * Returns Success if the flow is supported, else Invalid Input. 1792 **/ 1793 static int i40e_get_rss_hash_opts(struct i40e_pf *pf, struct ethtool_rxnfc *cmd) 1794 { 1795 cmd->data = 0; 1796 1797 if (pf->vsi[pf->lan_vsi]->rxnfc.data != 0) { 1798 cmd->data = pf->vsi[pf->lan_vsi]->rxnfc.data; 1799 cmd->flow_type = pf->vsi[pf->lan_vsi]->rxnfc.flow_type; 1800 return 0; 1801 } 1802 /* Report default options for RSS on i40e */ 1803 switch (cmd->flow_type) { 1804 case TCP_V4_FLOW: 1805 case UDP_V4_FLOW: 1806 cmd->data |= RXH_L4_B_0_1 | RXH_L4_B_2_3; 1807 /* fall through to add IP fields */ 1808 case SCTP_V4_FLOW: 1809 case AH_ESP_V4_FLOW: 1810 case AH_V4_FLOW: 1811 case ESP_V4_FLOW: 1812 case IPV4_FLOW: 1813 cmd->data |= RXH_IP_SRC | RXH_IP_DST; 1814 break; 1815 case TCP_V6_FLOW: 1816 case UDP_V6_FLOW: 1817 cmd->data |= RXH_L4_B_0_1 | RXH_L4_B_2_3; 1818 /* fall through to add IP fields */ 1819 case SCTP_V6_FLOW: 1820 case AH_ESP_V6_FLOW: 1821 case AH_V6_FLOW: 1822 case ESP_V6_FLOW: 1823 case IPV6_FLOW: 1824 cmd->data |= RXH_IP_SRC | RXH_IP_DST; 1825 break; 1826 default: 1827 return -EINVAL; 1828 } 1829 1830 return 0; 1831 } 1832 1833 /** 1834 * i40e_get_ethtool_fdir_all - Populates the rule count of a command 1835 * @pf: Pointer to the physical function struct 1836 * @cmd: The command to get or set Rx flow classification rules 1837 * @rule_locs: Array of used rule locations 1838 * 1839 * This function populates both the total and actual rule count of 1840 * the ethtool flow classification command 1841 * 1842 * Returns 0 on success or -EMSGSIZE if entry not found 1843 **/ 1844 static int i40e_get_ethtool_fdir_all(struct i40e_pf *pf, 1845 struct ethtool_rxnfc *cmd, 1846 u32 *rule_locs) 1847 { 1848 struct i40e_fdir_filter *rule; 1849 struct hlist_node *node2; 1850 int cnt = 0; 1851 1852 /* report total rule count */ 1853 cmd->data = i40e_get_fd_cnt_all(pf); 1854 1855 hlist_for_each_entry_safe(rule, node2, 1856 &pf->fdir_filter_list, fdir_node) { 1857 if (cnt == cmd->rule_cnt) 1858 return -EMSGSIZE; 1859 1860 rule_locs[cnt] = rule->fd_id; 1861 cnt++; 1862 } 1863 1864 cmd->rule_cnt = cnt; 1865 1866 return 0; 1867 } 1868 1869 /** 1870 * i40e_get_ethtool_fdir_entry - Look up a filter based on Rx flow 1871 * @pf: Pointer to the physical function struct 1872 * @cmd: The command to get or set Rx flow classification rules 1873 * 1874 * This function looks up a filter based on the Rx flow classification 1875 * command and fills the flow spec info for it if found 1876 * 1877 * Returns 0 on success or -EINVAL if filter not found 1878 **/ 1879 static int i40e_get_ethtool_fdir_entry(struct i40e_pf *pf, 1880 struct ethtool_rxnfc *cmd) 1881 { 1882 struct ethtool_rx_flow_spec *fsp = 1883 (struct ethtool_rx_flow_spec *)&cmd->fs; 1884 struct i40e_fdir_filter *rule = NULL; 1885 struct hlist_node *node2; 1886 1887 hlist_for_each_entry_safe(rule, node2, 1888 &pf->fdir_filter_list, fdir_node) { 1889 if (fsp->location <= rule->fd_id) 1890 break; 1891 } 1892 1893 if (!rule || fsp->location != rule->fd_id) 1894 return -EINVAL; 1895 1896 fsp->flow_type = rule->flow_type; 1897 if (fsp->flow_type == IP_USER_FLOW) { 1898 fsp->h_u.usr_ip4_spec.ip_ver = ETH_RX_NFC_IP4; 1899 fsp->h_u.usr_ip4_spec.proto = 0; 1900 fsp->m_u.usr_ip4_spec.proto = 0; 1901 } 1902 1903 /* Reverse the src and dest notion, since the HW views them from 1904 * Tx perspective where as the user expects it from Rx filter view. 1905 */ 1906 fsp->h_u.tcp_ip4_spec.psrc = rule->dst_port; 1907 fsp->h_u.tcp_ip4_spec.pdst = rule->src_port; 1908 fsp->h_u.tcp_ip4_spec.ip4src = rule->dst_ip[0]; 1909 fsp->h_u.tcp_ip4_spec.ip4dst = rule->src_ip[0]; 1910 1911 if (rule->dest_ctl == I40E_FILTER_PROGRAM_DESC_DEST_DROP_PACKET) 1912 fsp->ring_cookie = RX_CLS_FLOW_DISC; 1913 else 1914 fsp->ring_cookie = rule->q_index; 1915 1916 if (rule->dest_vsi != pf->vsi[pf->lan_vsi]->id) { 1917 struct i40e_vsi *vsi; 1918 1919 vsi = i40e_find_vsi_from_id(pf, rule->dest_vsi); 1920 if (vsi && vsi->type == I40E_VSI_SRIOV) { 1921 fsp->h_ext.data[1] = htonl(vsi->vf_id); 1922 fsp->m_ext.data[1] = htonl(0x1); 1923 } 1924 } 1925 1926 return 0; 1927 } 1928 1929 /** 1930 * i40e_get_rxnfc - command to get RX flow classification rules 1931 * @netdev: network interface device structure 1932 * @cmd: ethtool rxnfc command 1933 * 1934 * Returns Success if the command is supported. 1935 **/ 1936 static int i40e_get_rxnfc(struct net_device *netdev, struct ethtool_rxnfc *cmd, 1937 u32 *rule_locs) 1938 { 1939 struct i40e_netdev_priv *np = netdev_priv(netdev); 1940 struct i40e_vsi *vsi = np->vsi; 1941 struct i40e_pf *pf = vsi->back; 1942 int ret = -EOPNOTSUPP; 1943 1944 switch (cmd->cmd) { 1945 case ETHTOOL_GRXRINGS: 1946 cmd->data = vsi->alloc_queue_pairs; 1947 ret = 0; 1948 break; 1949 case ETHTOOL_GRXFH: 1950 ret = i40e_get_rss_hash_opts(pf, cmd); 1951 break; 1952 case ETHTOOL_GRXCLSRLCNT: 1953 cmd->rule_cnt = pf->fdir_pf_active_filters; 1954 /* report total rule count */ 1955 cmd->data = i40e_get_fd_cnt_all(pf); 1956 ret = 0; 1957 break; 1958 case ETHTOOL_GRXCLSRULE: 1959 ret = i40e_get_ethtool_fdir_entry(pf, cmd); 1960 break; 1961 case ETHTOOL_GRXCLSRLALL: 1962 ret = i40e_get_ethtool_fdir_all(pf, cmd, rule_locs); 1963 break; 1964 default: 1965 break; 1966 } 1967 1968 return ret; 1969 } 1970 1971 /** 1972 * i40e_set_rss_hash_opt - Enable/Disable flow types for RSS hash 1973 * @pf: pointer to the physical function struct 1974 * @cmd: ethtool rxnfc command 1975 * 1976 * Returns Success if the flow input set is supported. 1977 **/ 1978 static int i40e_set_rss_hash_opt(struct i40e_pf *pf, struct ethtool_rxnfc *nfc) 1979 { 1980 struct i40e_hw *hw = &pf->hw; 1981 u64 hena = (u64)rd32(hw, I40E_PFQF_HENA(0)) | 1982 ((u64)rd32(hw, I40E_PFQF_HENA(1)) << 32); 1983 1984 /* RSS does not support anything other than hashing 1985 * to queues on src and dst IPs and ports 1986 */ 1987 if (nfc->data & ~(RXH_IP_SRC | RXH_IP_DST | 1988 RXH_L4_B_0_1 | RXH_L4_B_2_3)) 1989 return -EINVAL; 1990 1991 /* We need at least the IP SRC and DEST fields for hashing */ 1992 if (!(nfc->data & RXH_IP_SRC) || 1993 !(nfc->data & RXH_IP_DST)) 1994 return -EINVAL; 1995 1996 switch (nfc->flow_type) { 1997 case TCP_V4_FLOW: 1998 switch (nfc->data & (RXH_L4_B_0_1 | RXH_L4_B_2_3)) { 1999 case 0: 2000 hena &= ~((u64)1 << I40E_FILTER_PCTYPE_NONF_IPV4_TCP); 2001 break; 2002 case (RXH_L4_B_0_1 | RXH_L4_B_2_3): 2003 hena |= ((u64)1 << I40E_FILTER_PCTYPE_NONF_IPV4_TCP); 2004 break; 2005 default: 2006 return -EINVAL; 2007 } 2008 break; 2009 case TCP_V6_FLOW: 2010 switch (nfc->data & (RXH_L4_B_0_1 | RXH_L4_B_2_3)) { 2011 case 0: 2012 hena &= ~((u64)1 << I40E_FILTER_PCTYPE_NONF_IPV6_TCP); 2013 break; 2014 case (RXH_L4_B_0_1 | RXH_L4_B_2_3): 2015 hena |= ((u64)1 << I40E_FILTER_PCTYPE_NONF_IPV6_TCP); 2016 break; 2017 default: 2018 return -EINVAL; 2019 } 2020 break; 2021 case UDP_V4_FLOW: 2022 switch (nfc->data & (RXH_L4_B_0_1 | RXH_L4_B_2_3)) { 2023 case 0: 2024 hena &= ~(((u64)1 << I40E_FILTER_PCTYPE_NONF_IPV4_UDP) | 2025 ((u64)1 << I40E_FILTER_PCTYPE_FRAG_IPV4)); 2026 break; 2027 case (RXH_L4_B_0_1 | RXH_L4_B_2_3): 2028 hena |= (((u64)1 << I40E_FILTER_PCTYPE_NONF_IPV4_UDP) | 2029 ((u64)1 << I40E_FILTER_PCTYPE_FRAG_IPV4)); 2030 break; 2031 default: 2032 return -EINVAL; 2033 } 2034 break; 2035 case UDP_V6_FLOW: 2036 switch (nfc->data & (RXH_L4_B_0_1 | RXH_L4_B_2_3)) { 2037 case 0: 2038 hena &= ~(((u64)1 << I40E_FILTER_PCTYPE_NONF_IPV6_UDP) | 2039 ((u64)1 << I40E_FILTER_PCTYPE_FRAG_IPV6)); 2040 break; 2041 case (RXH_L4_B_0_1 | RXH_L4_B_2_3): 2042 hena |= (((u64)1 << I40E_FILTER_PCTYPE_NONF_IPV6_UDP) | 2043 ((u64)1 << I40E_FILTER_PCTYPE_FRAG_IPV6)); 2044 break; 2045 default: 2046 return -EINVAL; 2047 } 2048 break; 2049 case AH_ESP_V4_FLOW: 2050 case AH_V4_FLOW: 2051 case ESP_V4_FLOW: 2052 case SCTP_V4_FLOW: 2053 if ((nfc->data & RXH_L4_B_0_1) || 2054 (nfc->data & RXH_L4_B_2_3)) 2055 return -EINVAL; 2056 hena |= ((u64)1 << I40E_FILTER_PCTYPE_NONF_IPV4_OTHER); 2057 break; 2058 case AH_ESP_V6_FLOW: 2059 case AH_V6_FLOW: 2060 case ESP_V6_FLOW: 2061 case SCTP_V6_FLOW: 2062 if ((nfc->data & RXH_L4_B_0_1) || 2063 (nfc->data & RXH_L4_B_2_3)) 2064 return -EINVAL; 2065 hena |= ((u64)1 << I40E_FILTER_PCTYPE_NONF_IPV6_OTHER); 2066 break; 2067 case IPV4_FLOW: 2068 hena |= ((u64)1 << I40E_FILTER_PCTYPE_NONF_IPV4_OTHER) | 2069 ((u64)1 << I40E_FILTER_PCTYPE_FRAG_IPV4); 2070 break; 2071 case IPV6_FLOW: 2072 hena |= ((u64)1 << I40E_FILTER_PCTYPE_NONF_IPV6_OTHER) | 2073 ((u64)1 << I40E_FILTER_PCTYPE_FRAG_IPV6); 2074 break; 2075 default: 2076 return -EINVAL; 2077 } 2078 2079 wr32(hw, I40E_PFQF_HENA(0), (u32)hena); 2080 wr32(hw, I40E_PFQF_HENA(1), (u32)(hena >> 32)); 2081 i40e_flush(hw); 2082 2083 /* Save setting for future output/update */ 2084 pf->vsi[pf->lan_vsi]->rxnfc = *nfc; 2085 2086 return 0; 2087 } 2088 2089 /** 2090 * i40e_match_fdir_input_set - Match a new filter against an existing one 2091 * @rule: The filter already added 2092 * @input: The new filter to comapre against 2093 * 2094 * Returns true if the two input set match 2095 **/ 2096 static bool i40e_match_fdir_input_set(struct i40e_fdir_filter *rule, 2097 struct i40e_fdir_filter *input) 2098 { 2099 if ((rule->dst_ip[0] != input->dst_ip[0]) || 2100 (rule->src_ip[0] != input->src_ip[0]) || 2101 (rule->dst_port != input->dst_port) || 2102 (rule->src_port != input->src_port)) 2103 return false; 2104 return true; 2105 } 2106 2107 /** 2108 * i40e_update_ethtool_fdir_entry - Updates the fdir filter entry 2109 * @vsi: Pointer to the targeted VSI 2110 * @input: The filter to update or NULL to indicate deletion 2111 * @sw_idx: Software index to the filter 2112 * @cmd: The command to get or set Rx flow classification rules 2113 * 2114 * This function updates (or deletes) a Flow Director entry from 2115 * the hlist of the corresponding PF 2116 * 2117 * Returns 0 on success 2118 **/ 2119 static int i40e_update_ethtool_fdir_entry(struct i40e_vsi *vsi, 2120 struct i40e_fdir_filter *input, 2121 u16 sw_idx, 2122 struct ethtool_rxnfc *cmd) 2123 { 2124 struct i40e_fdir_filter *rule, *parent; 2125 struct i40e_pf *pf = vsi->back; 2126 struct hlist_node *node2; 2127 int err = -EINVAL; 2128 2129 parent = NULL; 2130 rule = NULL; 2131 2132 hlist_for_each_entry_safe(rule, node2, 2133 &pf->fdir_filter_list, fdir_node) { 2134 /* hash found, or no matching entry */ 2135 if (rule->fd_id >= sw_idx) 2136 break; 2137 parent = rule; 2138 } 2139 2140 /* if there is an old rule occupying our place remove it */ 2141 if (rule && (rule->fd_id == sw_idx)) { 2142 if (input && !i40e_match_fdir_input_set(rule, input)) 2143 err = i40e_add_del_fdir(vsi, rule, false); 2144 else if (!input) 2145 err = i40e_add_del_fdir(vsi, rule, false); 2146 hlist_del(&rule->fdir_node); 2147 kfree(rule); 2148 pf->fdir_pf_active_filters--; 2149 } 2150 2151 /* If no input this was a delete, err should be 0 if a rule was 2152 * successfully found and removed from the list else -EINVAL 2153 */ 2154 if (!input) 2155 return err; 2156 2157 /* initialize node and set software index */ 2158 INIT_HLIST_NODE(&input->fdir_node); 2159 2160 /* add filter to the list */ 2161 if (parent) 2162 hlist_add_behind(&input->fdir_node, &parent->fdir_node); 2163 else 2164 hlist_add_head(&input->fdir_node, 2165 &pf->fdir_filter_list); 2166 2167 /* update counts */ 2168 pf->fdir_pf_active_filters++; 2169 2170 return 0; 2171 } 2172 2173 /** 2174 * i40e_del_fdir_entry - Deletes a Flow Director filter entry 2175 * @vsi: Pointer to the targeted VSI 2176 * @cmd: The command to get or set Rx flow classification rules 2177 * 2178 * The function removes a Flow Director filter entry from the 2179 * hlist of the corresponding PF 2180 * 2181 * Returns 0 on success 2182 */ 2183 static int i40e_del_fdir_entry(struct i40e_vsi *vsi, 2184 struct ethtool_rxnfc *cmd) 2185 { 2186 struct ethtool_rx_flow_spec *fsp = 2187 (struct ethtool_rx_flow_spec *)&cmd->fs; 2188 struct i40e_pf *pf = vsi->back; 2189 int ret = 0; 2190 2191 if (test_bit(__I40E_RESET_RECOVERY_PENDING, &pf->state) || 2192 test_bit(__I40E_RESET_INTR_RECEIVED, &pf->state)) 2193 return -EBUSY; 2194 2195 if (test_bit(__I40E_FD_FLUSH_REQUESTED, &pf->state)) 2196 return -EBUSY; 2197 2198 ret = i40e_update_ethtool_fdir_entry(vsi, NULL, fsp->location, cmd); 2199 2200 i40e_fdir_check_and_reenable(pf); 2201 return ret; 2202 } 2203 2204 /** 2205 * i40e_add_fdir_ethtool - Add/Remove Flow Director filters 2206 * @vsi: pointer to the targeted VSI 2207 * @cmd: command to get or set RX flow classification rules 2208 * 2209 * Add Flow Director filters for a specific flow spec based on their 2210 * protocol. Returns 0 if the filters were successfully added. 2211 **/ 2212 static int i40e_add_fdir_ethtool(struct i40e_vsi *vsi, 2213 struct ethtool_rxnfc *cmd) 2214 { 2215 struct ethtool_rx_flow_spec *fsp; 2216 struct i40e_fdir_filter *input; 2217 struct i40e_pf *pf; 2218 int ret = -EINVAL; 2219 u16 vf_id; 2220 2221 if (!vsi) 2222 return -EINVAL; 2223 2224 pf = vsi->back; 2225 2226 if (!(pf->flags & I40E_FLAG_FD_SB_ENABLED)) 2227 return -EOPNOTSUPP; 2228 2229 if (pf->auto_disable_flags & I40E_FLAG_FD_SB_ENABLED) 2230 return -ENOSPC; 2231 2232 if (test_bit(__I40E_RESET_RECOVERY_PENDING, &pf->state) || 2233 test_bit(__I40E_RESET_INTR_RECEIVED, &pf->state)) 2234 return -EBUSY; 2235 2236 if (test_bit(__I40E_FD_FLUSH_REQUESTED, &pf->state)) 2237 return -EBUSY; 2238 2239 fsp = (struct ethtool_rx_flow_spec *)&cmd->fs; 2240 2241 if (fsp->location >= (pf->hw.func_caps.fd_filters_best_effort + 2242 pf->hw.func_caps.fd_filters_guaranteed)) { 2243 return -EINVAL; 2244 } 2245 2246 if ((fsp->ring_cookie != RX_CLS_FLOW_DISC) && 2247 (fsp->ring_cookie >= vsi->num_queue_pairs)) 2248 return -EINVAL; 2249 2250 input = kzalloc(sizeof(*input), GFP_KERNEL); 2251 2252 if (!input) 2253 return -ENOMEM; 2254 2255 input->fd_id = fsp->location; 2256 2257 if (fsp->ring_cookie == RX_CLS_FLOW_DISC) 2258 input->dest_ctl = I40E_FILTER_PROGRAM_DESC_DEST_DROP_PACKET; 2259 else 2260 input->dest_ctl = 2261 I40E_FILTER_PROGRAM_DESC_DEST_DIRECT_PACKET_QINDEX; 2262 2263 input->q_index = fsp->ring_cookie; 2264 input->flex_off = 0; 2265 input->pctype = 0; 2266 input->dest_vsi = vsi->id; 2267 input->fd_status = I40E_FILTER_PROGRAM_DESC_FD_STATUS_FD_ID; 2268 input->cnt_index = pf->fd_sb_cnt_idx; 2269 input->flow_type = fsp->flow_type; 2270 input->ip4_proto = fsp->h_u.usr_ip4_spec.proto; 2271 2272 /* Reverse the src and dest notion, since the HW expects them to be from 2273 * Tx perspective where as the input from user is from Rx filter view. 2274 */ 2275 input->dst_port = fsp->h_u.tcp_ip4_spec.psrc; 2276 input->src_port = fsp->h_u.tcp_ip4_spec.pdst; 2277 input->dst_ip[0] = fsp->h_u.tcp_ip4_spec.ip4src; 2278 input->src_ip[0] = fsp->h_u.tcp_ip4_spec.ip4dst; 2279 2280 if (ntohl(fsp->m_ext.data[1])) { 2281 if (ntohl(fsp->h_ext.data[1]) >= pf->num_alloc_vfs) { 2282 netif_info(pf, drv, vsi->netdev, "Invalid VF id\n"); 2283 goto free_input; 2284 } 2285 vf_id = ntohl(fsp->h_ext.data[1]); 2286 /* Find vsi id from vf id and override dest vsi */ 2287 input->dest_vsi = pf->vf[vf_id].lan_vsi_id; 2288 if (input->q_index >= pf->vf[vf_id].num_queue_pairs) { 2289 netif_info(pf, drv, vsi->netdev, "Invalid queue id\n"); 2290 goto free_input; 2291 } 2292 } 2293 2294 ret = i40e_add_del_fdir(vsi, input, true); 2295 free_input: 2296 if (ret) 2297 kfree(input); 2298 else 2299 i40e_update_ethtool_fdir_entry(vsi, input, fsp->location, NULL); 2300 2301 return ret; 2302 } 2303 2304 /** 2305 * i40e_set_rxnfc - command to set RX flow classification rules 2306 * @netdev: network interface device structure 2307 * @cmd: ethtool rxnfc command 2308 * 2309 * Returns Success if the command is supported. 2310 **/ 2311 static int i40e_set_rxnfc(struct net_device *netdev, struct ethtool_rxnfc *cmd) 2312 { 2313 struct i40e_netdev_priv *np = netdev_priv(netdev); 2314 struct i40e_vsi *vsi = np->vsi; 2315 struct i40e_pf *pf = vsi->back; 2316 int ret = -EOPNOTSUPP; 2317 2318 switch (cmd->cmd) { 2319 case ETHTOOL_SRXFH: 2320 ret = i40e_set_rss_hash_opt(pf, cmd); 2321 break; 2322 case ETHTOOL_SRXCLSRLINS: 2323 ret = i40e_add_fdir_ethtool(vsi, cmd); 2324 break; 2325 case ETHTOOL_SRXCLSRLDEL: 2326 ret = i40e_del_fdir_entry(vsi, cmd); 2327 break; 2328 default: 2329 break; 2330 } 2331 2332 return ret; 2333 } 2334 2335 /** 2336 * i40e_max_channels - get Max number of combined channels supported 2337 * @vsi: vsi pointer 2338 **/ 2339 static unsigned int i40e_max_channels(struct i40e_vsi *vsi) 2340 { 2341 /* TODO: This code assumes DCB and FD is disabled for now. */ 2342 return vsi->alloc_queue_pairs; 2343 } 2344 2345 /** 2346 * i40e_get_channels - Get the current channels enabled and max supported etc. 2347 * @netdev: network interface device structure 2348 * @ch: ethtool channels structure 2349 * 2350 * We don't support separate tx and rx queues as channels. The other count 2351 * represents how many queues are being used for control. max_combined counts 2352 * how many queue pairs we can support. They may not be mapped 1 to 1 with 2353 * q_vectors since we support a lot more queue pairs than q_vectors. 2354 **/ 2355 static void i40e_get_channels(struct net_device *dev, 2356 struct ethtool_channels *ch) 2357 { 2358 struct i40e_netdev_priv *np = netdev_priv(dev); 2359 struct i40e_vsi *vsi = np->vsi; 2360 struct i40e_pf *pf = vsi->back; 2361 2362 /* report maximum channels */ 2363 ch->max_combined = i40e_max_channels(vsi); 2364 2365 /* report info for other vector */ 2366 ch->other_count = (pf->flags & I40E_FLAG_FD_SB_ENABLED) ? 1 : 0; 2367 ch->max_other = ch->other_count; 2368 2369 /* Note: This code assumes DCB is disabled for now. */ 2370 ch->combined_count = vsi->num_queue_pairs; 2371 } 2372 2373 /** 2374 * i40e_set_channels - Set the new channels count. 2375 * @netdev: network interface device structure 2376 * @ch: ethtool channels structure 2377 * 2378 * The new channels count may not be the same as requested by the user 2379 * since it gets rounded down to a power of 2 value. 2380 **/ 2381 static int i40e_set_channels(struct net_device *dev, 2382 struct ethtool_channels *ch) 2383 { 2384 struct i40e_netdev_priv *np = netdev_priv(dev); 2385 unsigned int count = ch->combined_count; 2386 struct i40e_vsi *vsi = np->vsi; 2387 struct i40e_pf *pf = vsi->back; 2388 int new_count; 2389 2390 /* We do not support setting channels for any other VSI at present */ 2391 if (vsi->type != I40E_VSI_MAIN) 2392 return -EINVAL; 2393 2394 /* verify they are not requesting separate vectors */ 2395 if (!count || ch->rx_count || ch->tx_count) 2396 return -EINVAL; 2397 2398 /* verify other_count has not changed */ 2399 if (ch->other_count != ((pf->flags & I40E_FLAG_FD_SB_ENABLED) ? 1 : 0)) 2400 return -EINVAL; 2401 2402 /* verify the number of channels does not exceed hardware limits */ 2403 if (count > i40e_max_channels(vsi)) 2404 return -EINVAL; 2405 2406 /* update feature limits from largest to smallest supported values */ 2407 /* TODO: Flow director limit, DCB etc */ 2408 2409 /* use rss_reconfig to rebuild with new queue count and update traffic 2410 * class queue mapping 2411 */ 2412 new_count = i40e_reconfig_rss_queues(pf, count); 2413 if (new_count > 0) 2414 return 0; 2415 else 2416 return -EINVAL; 2417 } 2418 2419 #define I40E_HLUT_ARRAY_SIZE ((I40E_PFQF_HLUT_MAX_INDEX + 1) * 4) 2420 /** 2421 * i40e_get_rxfh_key_size - get the RSS hash key size 2422 * @netdev: network interface device structure 2423 * 2424 * Returns the table size. 2425 **/ 2426 static u32 i40e_get_rxfh_key_size(struct net_device *netdev) 2427 { 2428 return I40E_HKEY_ARRAY_SIZE; 2429 } 2430 2431 /** 2432 * i40e_get_rxfh_indir_size - get the rx flow hash indirection table size 2433 * @netdev: network interface device structure 2434 * 2435 * Returns the table size. 2436 **/ 2437 static u32 i40e_get_rxfh_indir_size(struct net_device *netdev) 2438 { 2439 return I40E_HLUT_ARRAY_SIZE; 2440 } 2441 2442 static int i40e_get_rxfh(struct net_device *netdev, u32 *indir, u8 *key, 2443 u8 *hfunc) 2444 { 2445 struct i40e_netdev_priv *np = netdev_priv(netdev); 2446 struct i40e_vsi *vsi = np->vsi; 2447 struct i40e_pf *pf = vsi->back; 2448 struct i40e_hw *hw = &pf->hw; 2449 u32 reg_val; 2450 int i, j; 2451 2452 if (hfunc) 2453 *hfunc = ETH_RSS_HASH_TOP; 2454 2455 if (!indir) 2456 return 0; 2457 2458 for (i = 0, j = 0; i <= I40E_PFQF_HLUT_MAX_INDEX; i++) { 2459 reg_val = rd32(hw, I40E_PFQF_HLUT(i)); 2460 indir[j++] = reg_val & 0xff; 2461 indir[j++] = (reg_val >> 8) & 0xff; 2462 indir[j++] = (reg_val >> 16) & 0xff; 2463 indir[j++] = (reg_val >> 24) & 0xff; 2464 } 2465 2466 if (key) { 2467 for (i = 0, j = 0; i <= I40E_PFQF_HKEY_MAX_INDEX; i++) { 2468 reg_val = rd32(hw, I40E_PFQF_HKEY(i)); 2469 key[j++] = (u8)(reg_val & 0xff); 2470 key[j++] = (u8)((reg_val >> 8) & 0xff); 2471 key[j++] = (u8)((reg_val >> 16) & 0xff); 2472 key[j++] = (u8)((reg_val >> 24) & 0xff); 2473 } 2474 } 2475 return 0; 2476 } 2477 2478 /** 2479 * i40e_set_rxfh - set the rx flow hash indirection table 2480 * @netdev: network interface device structure 2481 * @indir: indirection table 2482 * @key: hash key 2483 * 2484 * Returns -EINVAL if the table specifies an inavlid queue id, otherwise 2485 * returns 0 after programming the table. 2486 **/ 2487 static int i40e_set_rxfh(struct net_device *netdev, const u32 *indir, 2488 const u8 *key, const u8 hfunc) 2489 { 2490 struct i40e_netdev_priv *np = netdev_priv(netdev); 2491 struct i40e_vsi *vsi = np->vsi; 2492 struct i40e_pf *pf = vsi->back; 2493 struct i40e_hw *hw = &pf->hw; 2494 u32 reg_val; 2495 int i, j; 2496 2497 if (hfunc != ETH_RSS_HASH_NO_CHANGE && hfunc != ETH_RSS_HASH_TOP) 2498 return -EOPNOTSUPP; 2499 2500 if (!indir) 2501 return 0; 2502 2503 for (i = 0, j = 0; i <= I40E_PFQF_HLUT_MAX_INDEX; i++) { 2504 reg_val = indir[j++]; 2505 reg_val |= indir[j++] << 8; 2506 reg_val |= indir[j++] << 16; 2507 reg_val |= indir[j++] << 24; 2508 wr32(hw, I40E_PFQF_HLUT(i), reg_val); 2509 } 2510 2511 if (key) { 2512 for (i = 0, j = 0; i <= I40E_PFQF_HKEY_MAX_INDEX; i++) { 2513 reg_val = key[j++]; 2514 reg_val |= key[j++] << 8; 2515 reg_val |= key[j++] << 16; 2516 reg_val |= key[j++] << 24; 2517 wr32(hw, I40E_PFQF_HKEY(i), reg_val); 2518 } 2519 } 2520 return 0; 2521 } 2522 2523 /** 2524 * i40e_get_priv_flags - report device private flags 2525 * @dev: network interface device structure 2526 * 2527 * The get string set count and the string set should be matched for each 2528 * flag returned. Add new strings for each flag to the i40e_priv_flags_strings 2529 * array. 2530 * 2531 * Returns a u32 bitmap of flags. 2532 **/ 2533 static u32 i40e_get_priv_flags(struct net_device *dev) 2534 { 2535 struct i40e_netdev_priv *np = netdev_priv(dev); 2536 struct i40e_vsi *vsi = np->vsi; 2537 struct i40e_pf *pf = vsi->back; 2538 u32 ret_flags = 0; 2539 2540 ret_flags |= pf->hw.func_caps.npar_enable ? 2541 I40E_PRIV_FLAGS_NPAR_FLAG : 0; 2542 2543 return ret_flags; 2544 } 2545 2546 static const struct ethtool_ops i40e_ethtool_ops = { 2547 .get_settings = i40e_get_settings, 2548 .set_settings = i40e_set_settings, 2549 .get_drvinfo = i40e_get_drvinfo, 2550 .get_regs_len = i40e_get_regs_len, 2551 .get_regs = i40e_get_regs, 2552 .nway_reset = i40e_nway_reset, 2553 .get_link = ethtool_op_get_link, 2554 .get_wol = i40e_get_wol, 2555 .set_wol = i40e_set_wol, 2556 .set_eeprom = i40e_set_eeprom, 2557 .get_eeprom_len = i40e_get_eeprom_len, 2558 .get_eeprom = i40e_get_eeprom, 2559 .get_ringparam = i40e_get_ringparam, 2560 .set_ringparam = i40e_set_ringparam, 2561 .get_pauseparam = i40e_get_pauseparam, 2562 .set_pauseparam = i40e_set_pauseparam, 2563 .get_msglevel = i40e_get_msglevel, 2564 .set_msglevel = i40e_set_msglevel, 2565 .get_rxnfc = i40e_get_rxnfc, 2566 .set_rxnfc = i40e_set_rxnfc, 2567 .self_test = i40e_diag_test, 2568 .get_strings = i40e_get_strings, 2569 .set_phys_id = i40e_set_phys_id, 2570 .get_sset_count = i40e_get_sset_count, 2571 .get_ethtool_stats = i40e_get_ethtool_stats, 2572 .get_coalesce = i40e_get_coalesce, 2573 .set_coalesce = i40e_set_coalesce, 2574 .get_rxfh_key_size = i40e_get_rxfh_key_size, 2575 .get_rxfh_indir_size = i40e_get_rxfh_indir_size, 2576 .get_rxfh = i40e_get_rxfh, 2577 .set_rxfh = i40e_set_rxfh, 2578 .get_channels = i40e_get_channels, 2579 .set_channels = i40e_set_channels, 2580 .get_ts_info = i40e_get_ts_info, 2581 .get_priv_flags = i40e_get_priv_flags, 2582 }; 2583 2584 void i40e_set_ethtool_ops(struct net_device *netdev) 2585 { 2586 netdev->ethtool_ops = &i40e_ethtool_ops; 2587 } 2588