1 /******************************************************************************* 2 * 3 * Intel Ethernet Controller XL710 Family Linux Driver 4 * Copyright(c) 2013 - 2016 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 I40E_VSI_STAT("tx_linearize", tx_linearize), 91 I40E_VSI_STAT("tx_force_wb", tx_force_wb), 92 I40E_VSI_STAT("tx_lost_interrupt", tx_lost_interrupt), 93 I40E_VSI_STAT("rx_alloc_fail", rx_buf_failed), 94 I40E_VSI_STAT("rx_pg_alloc_fail", rx_page_failed), 95 }; 96 97 /* These PF_STATs might look like duplicates of some NETDEV_STATs, 98 * but they are separate. This device supports Virtualization, and 99 * as such might have several netdevs supporting VMDq and FCoE going 100 * through a single port. The NETDEV_STATs are for individual netdevs 101 * seen at the top of the stack, and the PF_STATs are for the physical 102 * function at the bottom of the stack hosting those netdevs. 103 * 104 * The PF_STATs are appended to the netdev stats only when ethtool -S 105 * is queried on the base PF netdev, not on the VMDq or FCoE netdev. 106 */ 107 static const struct i40e_stats i40e_gstrings_stats[] = { 108 I40E_PF_STAT("rx_bytes", stats.eth.rx_bytes), 109 I40E_PF_STAT("tx_bytes", stats.eth.tx_bytes), 110 I40E_PF_STAT("rx_unicast", stats.eth.rx_unicast), 111 I40E_PF_STAT("tx_unicast", stats.eth.tx_unicast), 112 I40E_PF_STAT("rx_multicast", stats.eth.rx_multicast), 113 I40E_PF_STAT("tx_multicast", stats.eth.tx_multicast), 114 I40E_PF_STAT("rx_broadcast", stats.eth.rx_broadcast), 115 I40E_PF_STAT("tx_broadcast", stats.eth.tx_broadcast), 116 I40E_PF_STAT("tx_errors", stats.eth.tx_errors), 117 I40E_PF_STAT("rx_dropped", stats.eth.rx_discards), 118 I40E_PF_STAT("tx_dropped_link_down", stats.tx_dropped_link_down), 119 I40E_PF_STAT("rx_crc_errors", stats.crc_errors), 120 I40E_PF_STAT("illegal_bytes", stats.illegal_bytes), 121 I40E_PF_STAT("mac_local_faults", stats.mac_local_faults), 122 I40E_PF_STAT("mac_remote_faults", stats.mac_remote_faults), 123 I40E_PF_STAT("tx_timeout", tx_timeout_count), 124 I40E_PF_STAT("rx_csum_bad", hw_csum_rx_error), 125 I40E_PF_STAT("rx_length_errors", stats.rx_length_errors), 126 I40E_PF_STAT("link_xon_rx", stats.link_xon_rx), 127 I40E_PF_STAT("link_xoff_rx", stats.link_xoff_rx), 128 I40E_PF_STAT("link_xon_tx", stats.link_xon_tx), 129 I40E_PF_STAT("link_xoff_tx", stats.link_xoff_tx), 130 I40E_PF_STAT("rx_size_64", stats.rx_size_64), 131 I40E_PF_STAT("rx_size_127", stats.rx_size_127), 132 I40E_PF_STAT("rx_size_255", stats.rx_size_255), 133 I40E_PF_STAT("rx_size_511", stats.rx_size_511), 134 I40E_PF_STAT("rx_size_1023", stats.rx_size_1023), 135 I40E_PF_STAT("rx_size_1522", stats.rx_size_1522), 136 I40E_PF_STAT("rx_size_big", stats.rx_size_big), 137 I40E_PF_STAT("tx_size_64", stats.tx_size_64), 138 I40E_PF_STAT("tx_size_127", stats.tx_size_127), 139 I40E_PF_STAT("tx_size_255", stats.tx_size_255), 140 I40E_PF_STAT("tx_size_511", stats.tx_size_511), 141 I40E_PF_STAT("tx_size_1023", stats.tx_size_1023), 142 I40E_PF_STAT("tx_size_1522", stats.tx_size_1522), 143 I40E_PF_STAT("tx_size_big", stats.tx_size_big), 144 I40E_PF_STAT("rx_undersize", stats.rx_undersize), 145 I40E_PF_STAT("rx_fragments", stats.rx_fragments), 146 I40E_PF_STAT("rx_oversize", stats.rx_oversize), 147 I40E_PF_STAT("rx_jabber", stats.rx_jabber), 148 I40E_PF_STAT("VF_admin_queue_requests", vf_aq_requests), 149 I40E_PF_STAT("arq_overflows", arq_overflows), 150 I40E_PF_STAT("rx_hwtstamp_cleared", rx_hwtstamp_cleared), 151 I40E_PF_STAT("fdir_flush_cnt", fd_flush_cnt), 152 I40E_PF_STAT("fdir_atr_match", stats.fd_atr_match), 153 I40E_PF_STAT("fdir_atr_tunnel_match", stats.fd_atr_tunnel_match), 154 I40E_PF_STAT("fdir_atr_status", stats.fd_atr_status), 155 I40E_PF_STAT("fdir_sb_match", stats.fd_sb_match), 156 I40E_PF_STAT("fdir_sb_status", stats.fd_sb_status), 157 158 /* LPI stats */ 159 I40E_PF_STAT("tx_lpi_status", stats.tx_lpi_status), 160 I40E_PF_STAT("rx_lpi_status", stats.rx_lpi_status), 161 I40E_PF_STAT("tx_lpi_count", stats.tx_lpi_count), 162 I40E_PF_STAT("rx_lpi_count", stats.rx_lpi_count), 163 }; 164 165 #ifdef I40E_FCOE 166 static const struct i40e_stats i40e_gstrings_fcoe_stats[] = { 167 I40E_VSI_STAT("fcoe_bad_fccrc", fcoe_stats.fcoe_bad_fccrc), 168 I40E_VSI_STAT("rx_fcoe_dropped", fcoe_stats.rx_fcoe_dropped), 169 I40E_VSI_STAT("rx_fcoe_packets", fcoe_stats.rx_fcoe_packets), 170 I40E_VSI_STAT("rx_fcoe_dwords", fcoe_stats.rx_fcoe_dwords), 171 I40E_VSI_STAT("fcoe_ddp_count", fcoe_stats.fcoe_ddp_count), 172 I40E_VSI_STAT("fcoe_last_error", fcoe_stats.fcoe_last_error), 173 I40E_VSI_STAT("tx_fcoe_packets", fcoe_stats.tx_fcoe_packets), 174 I40E_VSI_STAT("tx_fcoe_dwords", fcoe_stats.tx_fcoe_dwords), 175 }; 176 177 #endif /* I40E_FCOE */ 178 #define I40E_QUEUE_STATS_LEN(n) \ 179 (((struct i40e_netdev_priv *)netdev_priv((n)))->vsi->num_queue_pairs \ 180 * 2 /* Tx and Rx together */ \ 181 * (sizeof(struct i40e_queue_stats) / sizeof(u64))) 182 #define I40E_GLOBAL_STATS_LEN ARRAY_SIZE(i40e_gstrings_stats) 183 #define I40E_NETDEV_STATS_LEN ARRAY_SIZE(i40e_gstrings_net_stats) 184 #define I40E_MISC_STATS_LEN ARRAY_SIZE(i40e_gstrings_misc_stats) 185 #ifdef I40E_FCOE 186 #define I40E_FCOE_STATS_LEN ARRAY_SIZE(i40e_gstrings_fcoe_stats) 187 #define I40E_VSI_STATS_LEN(n) (I40E_NETDEV_STATS_LEN + \ 188 I40E_FCOE_STATS_LEN + \ 189 I40E_MISC_STATS_LEN + \ 190 I40E_QUEUE_STATS_LEN((n))) 191 #else 192 #define I40E_VSI_STATS_LEN(n) (I40E_NETDEV_STATS_LEN + \ 193 I40E_MISC_STATS_LEN + \ 194 I40E_QUEUE_STATS_LEN((n))) 195 #endif /* I40E_FCOE */ 196 #define I40E_PFC_STATS_LEN ( \ 197 (FIELD_SIZEOF(struct i40e_pf, stats.priority_xoff_rx) + \ 198 FIELD_SIZEOF(struct i40e_pf, stats.priority_xon_rx) + \ 199 FIELD_SIZEOF(struct i40e_pf, stats.priority_xoff_tx) + \ 200 FIELD_SIZEOF(struct i40e_pf, stats.priority_xon_tx) + \ 201 FIELD_SIZEOF(struct i40e_pf, stats.priority_xon_2_xoff)) \ 202 / sizeof(u64)) 203 #define I40E_VEB_TC_STATS_LEN ( \ 204 (FIELD_SIZEOF(struct i40e_veb, tc_stats.tc_rx_packets) + \ 205 FIELD_SIZEOF(struct i40e_veb, tc_stats.tc_rx_bytes) + \ 206 FIELD_SIZEOF(struct i40e_veb, tc_stats.tc_tx_packets) + \ 207 FIELD_SIZEOF(struct i40e_veb, tc_stats.tc_tx_bytes)) \ 208 / sizeof(u64)) 209 #define I40E_VEB_STATS_LEN ARRAY_SIZE(i40e_gstrings_veb_stats) 210 #define I40E_VEB_STATS_TOTAL (I40E_VEB_STATS_LEN + I40E_VEB_TC_STATS_LEN) 211 #define I40E_PF_STATS_LEN(n) (I40E_GLOBAL_STATS_LEN + \ 212 I40E_PFC_STATS_LEN + \ 213 I40E_VSI_STATS_LEN((n))) 214 215 enum i40e_ethtool_test_id { 216 I40E_ETH_TEST_REG = 0, 217 I40E_ETH_TEST_EEPROM, 218 I40E_ETH_TEST_INTR, 219 I40E_ETH_TEST_LINK, 220 }; 221 222 static const char i40e_gstrings_test[][ETH_GSTRING_LEN] = { 223 "Register test (offline)", 224 "Eeprom test (offline)", 225 "Interrupt test (offline)", 226 "Link test (on/offline)" 227 }; 228 229 #define I40E_TEST_LEN (sizeof(i40e_gstrings_test) / ETH_GSTRING_LEN) 230 231 static const char i40e_priv_flags_strings_gl[][ETH_GSTRING_LEN] = { 232 "MFP", 233 "LinkPolling", 234 "flow-director-atr", 235 "veb-stats", 236 "hw-atr-eviction", 237 "vf-true-promisc-support", 238 }; 239 240 #define I40E_PRIV_FLAGS_GL_STR_LEN ARRAY_SIZE(i40e_priv_flags_strings_gl) 241 242 static const char i40e_priv_flags_strings[][ETH_GSTRING_LEN] = { 243 "NPAR", 244 "LinkPolling", 245 "flow-director-atr", 246 "veb-stats", 247 "hw-atr-eviction", 248 }; 249 250 #define I40E_PRIV_FLAGS_STR_LEN ARRAY_SIZE(i40e_priv_flags_strings) 251 252 /** 253 * i40e_partition_setting_complaint - generic complaint for MFP restriction 254 * @pf: the PF struct 255 **/ 256 static void i40e_partition_setting_complaint(struct i40e_pf *pf) 257 { 258 dev_info(&pf->pdev->dev, 259 "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"); 260 } 261 262 /** 263 * i40e_phy_type_to_ethtool - convert the phy_types to ethtool link modes 264 * @phy_types: PHY types to convert 265 * @supported: pointer to the ethtool supported variable to fill in 266 * @advertising: pointer to the ethtool advertising variable to fill in 267 * 268 **/ 269 static void i40e_phy_type_to_ethtool(struct i40e_pf *pf, u32 *supported, 270 u32 *advertising) 271 { 272 enum i40e_aq_capabilities_phy_type phy_types = pf->hw.phy.phy_types; 273 struct i40e_link_status *hw_link_info = &pf->hw.phy.link_info; 274 *supported = 0x0; 275 *advertising = 0x0; 276 277 if (phy_types & I40E_CAP_PHY_TYPE_SGMII) { 278 *supported |= SUPPORTED_Autoneg | 279 SUPPORTED_1000baseT_Full; 280 *advertising |= ADVERTISED_Autoneg; 281 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_1GB) 282 *advertising |= ADVERTISED_1000baseT_Full; 283 if (pf->flags & I40E_FLAG_100M_SGMII_CAPABLE) { 284 *supported |= SUPPORTED_100baseT_Full; 285 *advertising |= ADVERTISED_100baseT_Full; 286 } 287 } 288 if (phy_types & I40E_CAP_PHY_TYPE_XAUI || 289 phy_types & I40E_CAP_PHY_TYPE_XFI || 290 phy_types & I40E_CAP_PHY_TYPE_SFI || 291 phy_types & I40E_CAP_PHY_TYPE_10GBASE_SFPP_CU || 292 phy_types & I40E_CAP_PHY_TYPE_10GBASE_AOC) 293 *supported |= SUPPORTED_10000baseT_Full; 294 if (phy_types & I40E_CAP_PHY_TYPE_10GBASE_CR1_CU || 295 phy_types & I40E_CAP_PHY_TYPE_10GBASE_CR1 || 296 phy_types & I40E_CAP_PHY_TYPE_10GBASE_T || 297 phy_types & I40E_CAP_PHY_TYPE_10GBASE_SR || 298 phy_types & I40E_CAP_PHY_TYPE_10GBASE_LR) { 299 *supported |= SUPPORTED_Autoneg | 300 SUPPORTED_10000baseT_Full; 301 *advertising |= ADVERTISED_Autoneg; 302 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_10GB) 303 *advertising |= ADVERTISED_10000baseT_Full; 304 } 305 if (phy_types & I40E_CAP_PHY_TYPE_XLAUI || 306 phy_types & I40E_CAP_PHY_TYPE_XLPPI || 307 phy_types & I40E_CAP_PHY_TYPE_40GBASE_AOC) 308 *supported |= SUPPORTED_40000baseCR4_Full; 309 if (phy_types & I40E_CAP_PHY_TYPE_40GBASE_CR4_CU || 310 phy_types & I40E_CAP_PHY_TYPE_40GBASE_CR4) { 311 *supported |= SUPPORTED_Autoneg | 312 SUPPORTED_40000baseCR4_Full; 313 *advertising |= ADVERTISED_Autoneg; 314 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_40GB) 315 *advertising |= ADVERTISED_40000baseCR4_Full; 316 } 317 if (phy_types & I40E_CAP_PHY_TYPE_100BASE_TX) { 318 *supported |= SUPPORTED_Autoneg | 319 SUPPORTED_100baseT_Full; 320 *advertising |= ADVERTISED_Autoneg; 321 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_100MB) 322 *advertising |= ADVERTISED_100baseT_Full; 323 } 324 if (phy_types & I40E_CAP_PHY_TYPE_1000BASE_T || 325 phy_types & I40E_CAP_PHY_TYPE_1000BASE_SX || 326 phy_types & I40E_CAP_PHY_TYPE_1000BASE_LX || 327 phy_types & I40E_CAP_PHY_TYPE_1000BASE_T_OPTICAL) { 328 *supported |= SUPPORTED_Autoneg | 329 SUPPORTED_1000baseT_Full; 330 *advertising |= ADVERTISED_Autoneg; 331 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_1GB) 332 *advertising |= ADVERTISED_1000baseT_Full; 333 } 334 if (phy_types & I40E_CAP_PHY_TYPE_40GBASE_SR4) 335 *supported |= SUPPORTED_40000baseSR4_Full; 336 if (phy_types & I40E_CAP_PHY_TYPE_40GBASE_LR4) 337 *supported |= SUPPORTED_40000baseLR4_Full; 338 if (phy_types & I40E_CAP_PHY_TYPE_40GBASE_KR4) { 339 *supported |= SUPPORTED_40000baseKR4_Full | 340 SUPPORTED_Autoneg; 341 *advertising |= ADVERTISED_40000baseKR4_Full | 342 ADVERTISED_Autoneg; 343 } 344 if (phy_types & I40E_CAP_PHY_TYPE_20GBASE_KR2) { 345 *supported |= SUPPORTED_20000baseKR2_Full | 346 SUPPORTED_Autoneg; 347 *advertising |= ADVERTISED_Autoneg; 348 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_20GB) 349 *advertising |= ADVERTISED_20000baseKR2_Full; 350 } 351 if (phy_types & I40E_CAP_PHY_TYPE_10GBASE_KR) { 352 *supported |= SUPPORTED_10000baseKR_Full | 353 SUPPORTED_Autoneg; 354 *advertising |= ADVERTISED_Autoneg; 355 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_10GB) 356 *advertising |= ADVERTISED_10000baseKR_Full; 357 } 358 if (phy_types & I40E_CAP_PHY_TYPE_10GBASE_KX4) { 359 *supported |= SUPPORTED_10000baseKX4_Full | 360 SUPPORTED_Autoneg; 361 *advertising |= ADVERTISED_Autoneg; 362 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_10GB) 363 *advertising |= ADVERTISED_10000baseKX4_Full; 364 } 365 if (phy_types & I40E_CAP_PHY_TYPE_1000BASE_KX) { 366 *supported |= SUPPORTED_1000baseKX_Full | 367 SUPPORTED_Autoneg; 368 *advertising |= ADVERTISED_Autoneg; 369 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_1GB) 370 *advertising |= ADVERTISED_1000baseKX_Full; 371 } 372 } 373 374 /** 375 * i40e_get_settings_link_up - Get the Link settings for when link is up 376 * @hw: hw structure 377 * @ecmd: ethtool command to fill in 378 * @netdev: network interface device structure 379 * 380 **/ 381 static void i40e_get_settings_link_up(struct i40e_hw *hw, 382 struct ethtool_cmd *ecmd, 383 struct net_device *netdev, 384 struct i40e_pf *pf) 385 { 386 struct i40e_link_status *hw_link_info = &hw->phy.link_info; 387 u32 link_speed = hw_link_info->link_speed; 388 u32 e_advertising = 0x0; 389 u32 e_supported = 0x0; 390 391 /* Initialize supported and advertised settings based on phy settings */ 392 switch (hw_link_info->phy_type) { 393 case I40E_PHY_TYPE_40GBASE_CR4: 394 case I40E_PHY_TYPE_40GBASE_CR4_CU: 395 ecmd->supported = SUPPORTED_Autoneg | 396 SUPPORTED_40000baseCR4_Full; 397 ecmd->advertising = ADVERTISED_Autoneg | 398 ADVERTISED_40000baseCR4_Full; 399 break; 400 case I40E_PHY_TYPE_XLAUI: 401 case I40E_PHY_TYPE_XLPPI: 402 case I40E_PHY_TYPE_40GBASE_AOC: 403 ecmd->supported = SUPPORTED_40000baseCR4_Full; 404 break; 405 case I40E_PHY_TYPE_40GBASE_SR4: 406 ecmd->supported = SUPPORTED_40000baseSR4_Full; 407 break; 408 case I40E_PHY_TYPE_40GBASE_LR4: 409 ecmd->supported = SUPPORTED_40000baseLR4_Full; 410 break; 411 case I40E_PHY_TYPE_10GBASE_SR: 412 case I40E_PHY_TYPE_10GBASE_LR: 413 case I40E_PHY_TYPE_1000BASE_SX: 414 case I40E_PHY_TYPE_1000BASE_LX: 415 ecmd->supported = SUPPORTED_10000baseT_Full; 416 if (hw_link_info->module_type[2] & 417 I40E_MODULE_TYPE_1000BASE_SX || 418 hw_link_info->module_type[2] & 419 I40E_MODULE_TYPE_1000BASE_LX) { 420 ecmd->supported |= SUPPORTED_1000baseT_Full; 421 if (hw_link_info->requested_speeds & 422 I40E_LINK_SPEED_1GB) 423 ecmd->advertising |= ADVERTISED_1000baseT_Full; 424 } 425 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_10GB) 426 ecmd->advertising |= ADVERTISED_10000baseT_Full; 427 break; 428 case I40E_PHY_TYPE_10GBASE_T: 429 case I40E_PHY_TYPE_1000BASE_T: 430 case I40E_PHY_TYPE_100BASE_TX: 431 ecmd->supported = SUPPORTED_Autoneg | 432 SUPPORTED_10000baseT_Full | 433 SUPPORTED_1000baseT_Full | 434 SUPPORTED_100baseT_Full; 435 ecmd->advertising = ADVERTISED_Autoneg; 436 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_10GB) 437 ecmd->advertising |= ADVERTISED_10000baseT_Full; 438 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_1GB) 439 ecmd->advertising |= ADVERTISED_1000baseT_Full; 440 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_100MB) 441 ecmd->advertising |= ADVERTISED_100baseT_Full; 442 break; 443 case I40E_PHY_TYPE_1000BASE_T_OPTICAL: 444 ecmd->supported = SUPPORTED_Autoneg | 445 SUPPORTED_1000baseT_Full; 446 ecmd->advertising = ADVERTISED_Autoneg | 447 ADVERTISED_1000baseT_Full; 448 break; 449 case I40E_PHY_TYPE_10GBASE_CR1_CU: 450 case I40E_PHY_TYPE_10GBASE_CR1: 451 ecmd->supported = SUPPORTED_Autoneg | 452 SUPPORTED_10000baseT_Full; 453 ecmd->advertising = ADVERTISED_Autoneg | 454 ADVERTISED_10000baseT_Full; 455 break; 456 case I40E_PHY_TYPE_XAUI: 457 case I40E_PHY_TYPE_XFI: 458 case I40E_PHY_TYPE_SFI: 459 case I40E_PHY_TYPE_10GBASE_SFPP_CU: 460 case I40E_PHY_TYPE_10GBASE_AOC: 461 ecmd->supported = SUPPORTED_10000baseT_Full; 462 ecmd->advertising = SUPPORTED_10000baseT_Full; 463 break; 464 case I40E_PHY_TYPE_SGMII: 465 ecmd->supported = SUPPORTED_Autoneg | 466 SUPPORTED_1000baseT_Full; 467 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_1GB) 468 ecmd->advertising |= ADVERTISED_1000baseT_Full; 469 if (pf->flags & I40E_FLAG_100M_SGMII_CAPABLE) { 470 ecmd->supported |= SUPPORTED_100baseT_Full; 471 if (hw_link_info->requested_speeds & 472 I40E_LINK_SPEED_100MB) 473 ecmd->advertising |= ADVERTISED_100baseT_Full; 474 } 475 break; 476 case I40E_PHY_TYPE_40GBASE_KR4: 477 case I40E_PHY_TYPE_20GBASE_KR2: 478 case I40E_PHY_TYPE_10GBASE_KR: 479 case I40E_PHY_TYPE_10GBASE_KX4: 480 case I40E_PHY_TYPE_1000BASE_KX: 481 ecmd->supported |= SUPPORTED_40000baseKR4_Full | 482 SUPPORTED_20000baseKR2_Full | 483 SUPPORTED_10000baseKR_Full | 484 SUPPORTED_10000baseKX4_Full | 485 SUPPORTED_1000baseKX_Full | 486 SUPPORTED_Autoneg; 487 ecmd->advertising |= ADVERTISED_40000baseKR4_Full | 488 ADVERTISED_20000baseKR2_Full | 489 ADVERTISED_10000baseKR_Full | 490 ADVERTISED_10000baseKX4_Full | 491 ADVERTISED_1000baseKX_Full | 492 ADVERTISED_Autoneg; 493 break; 494 default: 495 /* if we got here and link is up something bad is afoot */ 496 netdev_info(netdev, "WARNING: Link is up but PHY type 0x%x is not recognized.\n", 497 hw_link_info->phy_type); 498 } 499 500 /* Now that we've worked out everything that could be supported by the 501 * current PHY type, get what is supported by the NVM and them to 502 * get what is truly supported 503 */ 504 i40e_phy_type_to_ethtool(pf, &e_supported, 505 &e_advertising); 506 507 ecmd->supported = ecmd->supported & e_supported; 508 ecmd->advertising = ecmd->advertising & e_advertising; 509 510 /* Set speed and duplex */ 511 switch (link_speed) { 512 case I40E_LINK_SPEED_40GB: 513 ethtool_cmd_speed_set(ecmd, SPEED_40000); 514 break; 515 case I40E_LINK_SPEED_20GB: 516 ethtool_cmd_speed_set(ecmd, SPEED_20000); 517 break; 518 case I40E_LINK_SPEED_10GB: 519 ethtool_cmd_speed_set(ecmd, SPEED_10000); 520 break; 521 case I40E_LINK_SPEED_1GB: 522 ethtool_cmd_speed_set(ecmd, SPEED_1000); 523 break; 524 case I40E_LINK_SPEED_100MB: 525 ethtool_cmd_speed_set(ecmd, SPEED_100); 526 break; 527 default: 528 break; 529 } 530 ecmd->duplex = DUPLEX_FULL; 531 } 532 533 /** 534 * i40e_get_settings_link_down - Get the Link settings for when link is down 535 * @hw: hw structure 536 * @ecmd: ethtool command to fill in 537 * 538 * Reports link settings that can be determined when link is down 539 **/ 540 static void i40e_get_settings_link_down(struct i40e_hw *hw, 541 struct ethtool_cmd *ecmd, 542 struct i40e_pf *pf) 543 { 544 /* link is down and the driver needs to fall back on 545 * supported phy types to figure out what info to display 546 */ 547 i40e_phy_type_to_ethtool(pf, &ecmd->supported, 548 &ecmd->advertising); 549 550 /* With no link speed and duplex are unknown */ 551 ethtool_cmd_speed_set(ecmd, SPEED_UNKNOWN); 552 ecmd->duplex = DUPLEX_UNKNOWN; 553 } 554 555 /** 556 * i40e_get_settings - Get Link Speed and Duplex settings 557 * @netdev: network interface device structure 558 * @ecmd: ethtool command 559 * 560 * Reports speed/duplex settings based on media_type 561 **/ 562 static int i40e_get_settings(struct net_device *netdev, 563 struct ethtool_cmd *ecmd) 564 { 565 struct i40e_netdev_priv *np = netdev_priv(netdev); 566 struct i40e_pf *pf = np->vsi->back; 567 struct i40e_hw *hw = &pf->hw; 568 struct i40e_link_status *hw_link_info = &hw->phy.link_info; 569 bool link_up = hw_link_info->link_info & I40E_AQ_LINK_UP; 570 571 if (link_up) 572 i40e_get_settings_link_up(hw, ecmd, netdev, pf); 573 else 574 i40e_get_settings_link_down(hw, ecmd, pf); 575 576 /* Now set the settings that don't rely on link being up/down */ 577 /* Set autoneg settings */ 578 ecmd->autoneg = ((hw_link_info->an_info & I40E_AQ_AN_COMPLETED) ? 579 AUTONEG_ENABLE : AUTONEG_DISABLE); 580 581 switch (hw->phy.media_type) { 582 case I40E_MEDIA_TYPE_BACKPLANE: 583 ecmd->supported |= SUPPORTED_Autoneg | 584 SUPPORTED_Backplane; 585 ecmd->advertising |= ADVERTISED_Autoneg | 586 ADVERTISED_Backplane; 587 ecmd->port = PORT_NONE; 588 break; 589 case I40E_MEDIA_TYPE_BASET: 590 ecmd->supported |= SUPPORTED_TP; 591 ecmd->advertising |= ADVERTISED_TP; 592 ecmd->port = PORT_TP; 593 break; 594 case I40E_MEDIA_TYPE_DA: 595 case I40E_MEDIA_TYPE_CX4: 596 ecmd->supported |= SUPPORTED_FIBRE; 597 ecmd->advertising |= ADVERTISED_FIBRE; 598 ecmd->port = PORT_DA; 599 break; 600 case I40E_MEDIA_TYPE_FIBER: 601 ecmd->supported |= SUPPORTED_FIBRE; 602 ecmd->port = PORT_FIBRE; 603 break; 604 case I40E_MEDIA_TYPE_UNKNOWN: 605 default: 606 ecmd->port = PORT_OTHER; 607 break; 608 } 609 610 /* Set transceiver */ 611 ecmd->transceiver = XCVR_EXTERNAL; 612 613 /* Set flow control settings */ 614 ecmd->supported |= SUPPORTED_Pause; 615 616 switch (hw->fc.requested_mode) { 617 case I40E_FC_FULL: 618 ecmd->advertising |= ADVERTISED_Pause; 619 break; 620 case I40E_FC_TX_PAUSE: 621 ecmd->advertising |= ADVERTISED_Asym_Pause; 622 break; 623 case I40E_FC_RX_PAUSE: 624 ecmd->advertising |= (ADVERTISED_Pause | 625 ADVERTISED_Asym_Pause); 626 break; 627 default: 628 ecmd->advertising &= ~(ADVERTISED_Pause | 629 ADVERTISED_Asym_Pause); 630 break; 631 } 632 633 return 0; 634 } 635 636 /** 637 * i40e_set_settings - Set Speed and Duplex 638 * @netdev: network interface device structure 639 * @ecmd: ethtool command 640 * 641 * Set speed/duplex per media_types advertised/forced 642 **/ 643 static int i40e_set_settings(struct net_device *netdev, 644 struct ethtool_cmd *ecmd) 645 { 646 struct i40e_netdev_priv *np = netdev_priv(netdev); 647 struct i40e_aq_get_phy_abilities_resp abilities; 648 struct i40e_aq_set_phy_config config; 649 struct i40e_pf *pf = np->vsi->back; 650 struct i40e_vsi *vsi = np->vsi; 651 struct i40e_hw *hw = &pf->hw; 652 struct ethtool_cmd safe_ecmd; 653 i40e_status status = 0; 654 bool change = false; 655 int err = 0; 656 u8 autoneg; 657 u32 advertise; 658 659 /* Changing port settings is not supported if this isn't the 660 * port's controlling PF 661 */ 662 if (hw->partition_id != 1) { 663 i40e_partition_setting_complaint(pf); 664 return -EOPNOTSUPP; 665 } 666 667 if (vsi != pf->vsi[pf->lan_vsi]) 668 return -EOPNOTSUPP; 669 670 if (hw->phy.media_type != I40E_MEDIA_TYPE_BASET && 671 hw->phy.media_type != I40E_MEDIA_TYPE_FIBER && 672 hw->phy.media_type != I40E_MEDIA_TYPE_BACKPLANE && 673 hw->phy.media_type != I40E_MEDIA_TYPE_DA && 674 hw->phy.link_info.link_info & I40E_AQ_LINK_UP) 675 return -EOPNOTSUPP; 676 677 if (hw->device_id == I40E_DEV_ID_KX_B || 678 hw->device_id == I40E_DEV_ID_KX_C || 679 hw->device_id == I40E_DEV_ID_20G_KR2 || 680 hw->device_id == I40E_DEV_ID_20G_KR2_A) { 681 netdev_info(netdev, "Changing settings is not supported on backplane.\n"); 682 return -EOPNOTSUPP; 683 } 684 685 /* get our own copy of the bits to check against */ 686 memset(&safe_ecmd, 0, sizeof(struct ethtool_cmd)); 687 i40e_get_settings(netdev, &safe_ecmd); 688 689 /* save autoneg and speed out of ecmd */ 690 autoneg = ecmd->autoneg; 691 advertise = ecmd->advertising; 692 693 /* set autoneg and speed back to what they currently are */ 694 ecmd->autoneg = safe_ecmd.autoneg; 695 ecmd->advertising = safe_ecmd.advertising; 696 697 ecmd->cmd = safe_ecmd.cmd; 698 /* If ecmd and safe_ecmd are not the same now, then they are 699 * trying to set something that we do not support 700 */ 701 if (memcmp(ecmd, &safe_ecmd, sizeof(struct ethtool_cmd))) 702 return -EOPNOTSUPP; 703 704 while (test_bit(__I40E_CONFIG_BUSY, &vsi->state)) 705 usleep_range(1000, 2000); 706 707 /* Get the current phy config */ 708 status = i40e_aq_get_phy_capabilities(hw, false, false, &abilities, 709 NULL); 710 if (status) 711 return -EAGAIN; 712 713 /* Copy abilities to config in case autoneg is not 714 * set below 715 */ 716 memset(&config, 0, sizeof(struct i40e_aq_set_phy_config)); 717 config.abilities = abilities.abilities; 718 719 /* Check autoneg */ 720 if (autoneg == AUTONEG_ENABLE) { 721 /* If autoneg was not already enabled */ 722 if (!(hw->phy.link_info.an_info & I40E_AQ_AN_COMPLETED)) { 723 /* If autoneg is not supported, return error */ 724 if (!(safe_ecmd.supported & SUPPORTED_Autoneg)) { 725 netdev_info(netdev, "Autoneg not supported on this phy\n"); 726 return -EINVAL; 727 } 728 /* Autoneg is allowed to change */ 729 config.abilities = abilities.abilities | 730 I40E_AQ_PHY_ENABLE_AN; 731 change = true; 732 } 733 } else { 734 /* If autoneg is currently enabled */ 735 if (hw->phy.link_info.an_info & I40E_AQ_AN_COMPLETED) { 736 /* If autoneg is supported 10GBASE_T is the only PHY 737 * that can disable it, so otherwise return error 738 */ 739 if (safe_ecmd.supported & SUPPORTED_Autoneg && 740 hw->phy.link_info.phy_type != 741 I40E_PHY_TYPE_10GBASE_T) { 742 netdev_info(netdev, "Autoneg cannot be disabled on this phy\n"); 743 return -EINVAL; 744 } 745 /* Autoneg is allowed to change */ 746 config.abilities = abilities.abilities & 747 ~I40E_AQ_PHY_ENABLE_AN; 748 change = true; 749 } 750 } 751 752 if (advertise & ~safe_ecmd.supported) 753 return -EINVAL; 754 755 if (advertise & ADVERTISED_100baseT_Full) 756 config.link_speed |= I40E_LINK_SPEED_100MB; 757 if (advertise & ADVERTISED_1000baseT_Full || 758 advertise & ADVERTISED_1000baseKX_Full) 759 config.link_speed |= I40E_LINK_SPEED_1GB; 760 if (advertise & ADVERTISED_10000baseT_Full || 761 advertise & ADVERTISED_10000baseKX4_Full || 762 advertise & ADVERTISED_10000baseKR_Full) 763 config.link_speed |= I40E_LINK_SPEED_10GB; 764 if (advertise & ADVERTISED_20000baseKR2_Full) 765 config.link_speed |= I40E_LINK_SPEED_20GB; 766 if (advertise & ADVERTISED_40000baseKR4_Full || 767 advertise & ADVERTISED_40000baseCR4_Full || 768 advertise & ADVERTISED_40000baseSR4_Full || 769 advertise & ADVERTISED_40000baseLR4_Full) 770 config.link_speed |= I40E_LINK_SPEED_40GB; 771 772 /* If speed didn't get set, set it to what it currently is. 773 * This is needed because if advertise is 0 (as it is when autoneg 774 * is disabled) then speed won't get set. 775 */ 776 if (!config.link_speed) 777 config.link_speed = abilities.link_speed; 778 779 if (change || (abilities.link_speed != config.link_speed)) { 780 /* copy over the rest of the abilities */ 781 config.phy_type = abilities.phy_type; 782 config.eee_capability = abilities.eee_capability; 783 config.eeer = abilities.eeer_val; 784 config.low_power_ctrl = abilities.d3_lpan; 785 786 /* save the requested speeds */ 787 hw->phy.link_info.requested_speeds = config.link_speed; 788 /* set link and auto negotiation so changes take effect */ 789 config.abilities |= I40E_AQ_PHY_ENABLE_ATOMIC_LINK; 790 /* If link is up put link down */ 791 if (hw->phy.link_info.link_info & I40E_AQ_LINK_UP) { 792 /* Tell the OS link is going down, the link will go 793 * back up when fw says it is ready asynchronously 794 */ 795 i40e_print_link_message(vsi, false); 796 netif_carrier_off(netdev); 797 netif_tx_stop_all_queues(netdev); 798 } 799 800 /* make the aq call */ 801 status = i40e_aq_set_phy_config(hw, &config, NULL); 802 if (status) { 803 netdev_info(netdev, "Set phy config failed, err %s aq_err %s\n", 804 i40e_stat_str(hw, status), 805 i40e_aq_str(hw, hw->aq.asq_last_status)); 806 return -EAGAIN; 807 } 808 809 status = i40e_update_link_info(hw); 810 if (status) 811 netdev_dbg(netdev, "Updating link info failed with err %s aq_err %s\n", 812 i40e_stat_str(hw, status), 813 i40e_aq_str(hw, hw->aq.asq_last_status)); 814 815 } else { 816 netdev_info(netdev, "Nothing changed, exiting without setting anything.\n"); 817 } 818 819 return err; 820 } 821 822 static int i40e_nway_reset(struct net_device *netdev) 823 { 824 /* restart autonegotiation */ 825 struct i40e_netdev_priv *np = netdev_priv(netdev); 826 struct i40e_pf *pf = np->vsi->back; 827 struct i40e_hw *hw = &pf->hw; 828 bool link_up = hw->phy.link_info.link_info & I40E_AQ_LINK_UP; 829 i40e_status ret = 0; 830 831 ret = i40e_aq_set_link_restart_an(hw, link_up, NULL); 832 if (ret) { 833 netdev_info(netdev, "link restart failed, err %s aq_err %s\n", 834 i40e_stat_str(hw, ret), 835 i40e_aq_str(hw, hw->aq.asq_last_status)); 836 return -EIO; 837 } 838 839 return 0; 840 } 841 842 /** 843 * i40e_get_pauseparam - Get Flow Control status 844 * Return tx/rx-pause status 845 **/ 846 static void i40e_get_pauseparam(struct net_device *netdev, 847 struct ethtool_pauseparam *pause) 848 { 849 struct i40e_netdev_priv *np = netdev_priv(netdev); 850 struct i40e_pf *pf = np->vsi->back; 851 struct i40e_hw *hw = &pf->hw; 852 struct i40e_link_status *hw_link_info = &hw->phy.link_info; 853 struct i40e_dcbx_config *dcbx_cfg = &hw->local_dcbx_config; 854 855 pause->autoneg = 856 ((hw_link_info->an_info & I40E_AQ_AN_COMPLETED) ? 857 AUTONEG_ENABLE : AUTONEG_DISABLE); 858 859 /* PFC enabled so report LFC as off */ 860 if (dcbx_cfg->pfc.pfcenable) { 861 pause->rx_pause = 0; 862 pause->tx_pause = 0; 863 return; 864 } 865 866 if (hw->fc.current_mode == I40E_FC_RX_PAUSE) { 867 pause->rx_pause = 1; 868 } else if (hw->fc.current_mode == I40E_FC_TX_PAUSE) { 869 pause->tx_pause = 1; 870 } else if (hw->fc.current_mode == I40E_FC_FULL) { 871 pause->rx_pause = 1; 872 pause->tx_pause = 1; 873 } 874 } 875 876 /** 877 * i40e_set_pauseparam - Set Flow Control parameter 878 * @netdev: network interface device structure 879 * @pause: return tx/rx flow control status 880 **/ 881 static int i40e_set_pauseparam(struct net_device *netdev, 882 struct ethtool_pauseparam *pause) 883 { 884 struct i40e_netdev_priv *np = netdev_priv(netdev); 885 struct i40e_pf *pf = np->vsi->back; 886 struct i40e_vsi *vsi = np->vsi; 887 struct i40e_hw *hw = &pf->hw; 888 struct i40e_link_status *hw_link_info = &hw->phy.link_info; 889 struct i40e_dcbx_config *dcbx_cfg = &hw->local_dcbx_config; 890 bool link_up = hw_link_info->link_info & I40E_AQ_LINK_UP; 891 i40e_status status; 892 u8 aq_failures; 893 int err = 0; 894 895 /* Changing the port's flow control is not supported if this isn't the 896 * port's controlling PF 897 */ 898 if (hw->partition_id != 1) { 899 i40e_partition_setting_complaint(pf); 900 return -EOPNOTSUPP; 901 } 902 903 if (vsi != pf->vsi[pf->lan_vsi]) 904 return -EOPNOTSUPP; 905 906 if (pause->autoneg != ((hw_link_info->an_info & I40E_AQ_AN_COMPLETED) ? 907 AUTONEG_ENABLE : AUTONEG_DISABLE)) { 908 netdev_info(netdev, "To change autoneg please use: ethtool -s <dev> autoneg <on|off>\n"); 909 return -EOPNOTSUPP; 910 } 911 912 /* If we have link and don't have autoneg */ 913 if (!test_bit(__I40E_DOWN, &pf->state) && 914 !(hw_link_info->an_info & I40E_AQ_AN_COMPLETED)) { 915 /* Send message that it might not necessarily work*/ 916 netdev_info(netdev, "Autoneg did not complete so changing settings may not result in an actual change.\n"); 917 } 918 919 if (dcbx_cfg->pfc.pfcenable) { 920 netdev_info(netdev, 921 "Priority flow control enabled. Cannot set link flow control.\n"); 922 return -EOPNOTSUPP; 923 } 924 925 if (pause->rx_pause && pause->tx_pause) 926 hw->fc.requested_mode = I40E_FC_FULL; 927 else if (pause->rx_pause && !pause->tx_pause) 928 hw->fc.requested_mode = I40E_FC_RX_PAUSE; 929 else if (!pause->rx_pause && pause->tx_pause) 930 hw->fc.requested_mode = I40E_FC_TX_PAUSE; 931 else if (!pause->rx_pause && !pause->tx_pause) 932 hw->fc.requested_mode = I40E_FC_NONE; 933 else 934 return -EINVAL; 935 936 /* Tell the OS link is going down, the link will go back up when fw 937 * says it is ready asynchronously 938 */ 939 i40e_print_link_message(vsi, false); 940 netif_carrier_off(netdev); 941 netif_tx_stop_all_queues(netdev); 942 943 /* Set the fc mode and only restart an if link is up*/ 944 status = i40e_set_fc(hw, &aq_failures, link_up); 945 946 if (aq_failures & I40E_SET_FC_AQ_FAIL_GET) { 947 netdev_info(netdev, "Set fc failed on the get_phy_capabilities call with err %s aq_err %s\n", 948 i40e_stat_str(hw, status), 949 i40e_aq_str(hw, hw->aq.asq_last_status)); 950 err = -EAGAIN; 951 } 952 if (aq_failures & I40E_SET_FC_AQ_FAIL_SET) { 953 netdev_info(netdev, "Set fc failed on the set_phy_config call with err %s aq_err %s\n", 954 i40e_stat_str(hw, status), 955 i40e_aq_str(hw, hw->aq.asq_last_status)); 956 err = -EAGAIN; 957 } 958 if (aq_failures & I40E_SET_FC_AQ_FAIL_UPDATE) { 959 netdev_info(netdev, "Set fc failed on the get_link_info call with err %s aq_err %s\n", 960 i40e_stat_str(hw, status), 961 i40e_aq_str(hw, hw->aq.asq_last_status)); 962 err = -EAGAIN; 963 } 964 965 if (!test_bit(__I40E_DOWN, &pf->state)) { 966 /* Give it a little more time to try to come back */ 967 msleep(75); 968 if (!test_bit(__I40E_DOWN, &pf->state)) 969 return i40e_nway_reset(netdev); 970 } 971 972 return err; 973 } 974 975 static u32 i40e_get_msglevel(struct net_device *netdev) 976 { 977 struct i40e_netdev_priv *np = netdev_priv(netdev); 978 struct i40e_pf *pf = np->vsi->back; 979 u32 debug_mask = pf->hw.debug_mask; 980 981 if (debug_mask) 982 netdev_info(netdev, "i40e debug_mask: 0x%08X\n", debug_mask); 983 984 return pf->msg_enable; 985 } 986 987 static void i40e_set_msglevel(struct net_device *netdev, u32 data) 988 { 989 struct i40e_netdev_priv *np = netdev_priv(netdev); 990 struct i40e_pf *pf = np->vsi->back; 991 992 if (I40E_DEBUG_USER & data) 993 pf->hw.debug_mask = data; 994 else 995 pf->msg_enable = data; 996 } 997 998 static int i40e_get_regs_len(struct net_device *netdev) 999 { 1000 int reg_count = 0; 1001 int i; 1002 1003 for (i = 0; i40e_reg_list[i].offset != 0; i++) 1004 reg_count += i40e_reg_list[i].elements; 1005 1006 return reg_count * sizeof(u32); 1007 } 1008 1009 static void i40e_get_regs(struct net_device *netdev, struct ethtool_regs *regs, 1010 void *p) 1011 { 1012 struct i40e_netdev_priv *np = netdev_priv(netdev); 1013 struct i40e_pf *pf = np->vsi->back; 1014 struct i40e_hw *hw = &pf->hw; 1015 u32 *reg_buf = p; 1016 int i, j, ri; 1017 u32 reg; 1018 1019 /* Tell ethtool which driver-version-specific regs output we have. 1020 * 1021 * At some point, if we have ethtool doing special formatting of 1022 * this data, it will rely on this version number to know how to 1023 * interpret things. Hence, this needs to be updated if/when the 1024 * diags register table is changed. 1025 */ 1026 regs->version = 1; 1027 1028 /* loop through the diags reg table for what to print */ 1029 ri = 0; 1030 for (i = 0; i40e_reg_list[i].offset != 0; i++) { 1031 for (j = 0; j < i40e_reg_list[i].elements; j++) { 1032 reg = i40e_reg_list[i].offset 1033 + (j * i40e_reg_list[i].stride); 1034 reg_buf[ri++] = rd32(hw, reg); 1035 } 1036 } 1037 1038 } 1039 1040 static int i40e_get_eeprom(struct net_device *netdev, 1041 struct ethtool_eeprom *eeprom, u8 *bytes) 1042 { 1043 struct i40e_netdev_priv *np = netdev_priv(netdev); 1044 struct i40e_hw *hw = &np->vsi->back->hw; 1045 struct i40e_pf *pf = np->vsi->back; 1046 int ret_val = 0, len, offset; 1047 u8 *eeprom_buff; 1048 u16 i, sectors; 1049 bool last; 1050 u32 magic; 1051 1052 #define I40E_NVM_SECTOR_SIZE 4096 1053 if (eeprom->len == 0) 1054 return -EINVAL; 1055 1056 /* check for NVMUpdate access method */ 1057 magic = hw->vendor_id | (hw->device_id << 16); 1058 if (eeprom->magic && eeprom->magic != magic) { 1059 struct i40e_nvm_access *cmd = (struct i40e_nvm_access *)eeprom; 1060 int errno = 0; 1061 1062 /* make sure it is the right magic for NVMUpdate */ 1063 if ((eeprom->magic >> 16) != hw->device_id) 1064 errno = -EINVAL; 1065 else if (test_bit(__I40E_RESET_RECOVERY_PENDING, &pf->state) || 1066 test_bit(__I40E_RESET_INTR_RECEIVED, &pf->state)) 1067 errno = -EBUSY; 1068 else 1069 ret_val = i40e_nvmupd_command(hw, cmd, bytes, &errno); 1070 1071 if ((errno || ret_val) && (hw->debug_mask & I40E_DEBUG_NVM)) 1072 dev_info(&pf->pdev->dev, 1073 "NVMUpdate read failed err=%d status=0x%x errno=%d module=%d offset=0x%x size=%d\n", 1074 ret_val, hw->aq.asq_last_status, errno, 1075 (u8)(cmd->config & I40E_NVM_MOD_PNT_MASK), 1076 cmd->offset, cmd->data_size); 1077 1078 return errno; 1079 } 1080 1081 /* normal ethtool get_eeprom support */ 1082 eeprom->magic = hw->vendor_id | (hw->device_id << 16); 1083 1084 eeprom_buff = kzalloc(eeprom->len, GFP_KERNEL); 1085 if (!eeprom_buff) 1086 return -ENOMEM; 1087 1088 ret_val = i40e_acquire_nvm(hw, I40E_RESOURCE_READ); 1089 if (ret_val) { 1090 dev_info(&pf->pdev->dev, 1091 "Failed Acquiring NVM resource for read err=%d status=0x%x\n", 1092 ret_val, hw->aq.asq_last_status); 1093 goto free_buff; 1094 } 1095 1096 sectors = eeprom->len / I40E_NVM_SECTOR_SIZE; 1097 sectors += (eeprom->len % I40E_NVM_SECTOR_SIZE) ? 1 : 0; 1098 len = I40E_NVM_SECTOR_SIZE; 1099 last = false; 1100 for (i = 0; i < sectors; i++) { 1101 if (i == (sectors - 1)) { 1102 len = eeprom->len - (I40E_NVM_SECTOR_SIZE * i); 1103 last = true; 1104 } 1105 offset = eeprom->offset + (I40E_NVM_SECTOR_SIZE * i), 1106 ret_val = i40e_aq_read_nvm(hw, 0x0, offset, len, 1107 (u8 *)eeprom_buff + (I40E_NVM_SECTOR_SIZE * i), 1108 last, NULL); 1109 if (ret_val && hw->aq.asq_last_status == I40E_AQ_RC_EPERM) { 1110 dev_info(&pf->pdev->dev, 1111 "read NVM failed, invalid offset 0x%x\n", 1112 offset); 1113 break; 1114 } else if (ret_val && 1115 hw->aq.asq_last_status == I40E_AQ_RC_EACCES) { 1116 dev_info(&pf->pdev->dev, 1117 "read NVM failed, access, offset 0x%x\n", 1118 offset); 1119 break; 1120 } else if (ret_val) { 1121 dev_info(&pf->pdev->dev, 1122 "read NVM failed offset %d err=%d status=0x%x\n", 1123 offset, ret_val, hw->aq.asq_last_status); 1124 break; 1125 } 1126 } 1127 1128 i40e_release_nvm(hw); 1129 memcpy(bytes, (u8 *)eeprom_buff, eeprom->len); 1130 free_buff: 1131 kfree(eeprom_buff); 1132 return ret_val; 1133 } 1134 1135 static int i40e_get_eeprom_len(struct net_device *netdev) 1136 { 1137 struct i40e_netdev_priv *np = netdev_priv(netdev); 1138 struct i40e_hw *hw = &np->vsi->back->hw; 1139 u32 val; 1140 1141 val = (rd32(hw, I40E_GLPCI_LBARCTRL) 1142 & I40E_GLPCI_LBARCTRL_FL_SIZE_MASK) 1143 >> I40E_GLPCI_LBARCTRL_FL_SIZE_SHIFT; 1144 /* register returns value in power of 2, 64Kbyte chunks. */ 1145 val = (64 * 1024) * BIT(val); 1146 return val; 1147 } 1148 1149 static int i40e_set_eeprom(struct net_device *netdev, 1150 struct ethtool_eeprom *eeprom, u8 *bytes) 1151 { 1152 struct i40e_netdev_priv *np = netdev_priv(netdev); 1153 struct i40e_hw *hw = &np->vsi->back->hw; 1154 struct i40e_pf *pf = np->vsi->back; 1155 struct i40e_nvm_access *cmd = (struct i40e_nvm_access *)eeprom; 1156 int ret_val = 0; 1157 int errno = 0; 1158 u32 magic; 1159 1160 /* normal ethtool set_eeprom is not supported */ 1161 magic = hw->vendor_id | (hw->device_id << 16); 1162 if (eeprom->magic == magic) 1163 errno = -EOPNOTSUPP; 1164 /* check for NVMUpdate access method */ 1165 else if (!eeprom->magic || (eeprom->magic >> 16) != hw->device_id) 1166 errno = -EINVAL; 1167 else if (test_bit(__I40E_RESET_RECOVERY_PENDING, &pf->state) || 1168 test_bit(__I40E_RESET_INTR_RECEIVED, &pf->state)) 1169 errno = -EBUSY; 1170 else 1171 ret_val = i40e_nvmupd_command(hw, cmd, bytes, &errno); 1172 1173 if ((errno || ret_val) && (hw->debug_mask & I40E_DEBUG_NVM)) 1174 dev_info(&pf->pdev->dev, 1175 "NVMUpdate write failed err=%d status=0x%x errno=%d module=%d offset=0x%x size=%d\n", 1176 ret_val, hw->aq.asq_last_status, errno, 1177 (u8)(cmd->config & I40E_NVM_MOD_PNT_MASK), 1178 cmd->offset, cmd->data_size); 1179 1180 return errno; 1181 } 1182 1183 static void i40e_get_drvinfo(struct net_device *netdev, 1184 struct ethtool_drvinfo *drvinfo) 1185 { 1186 struct i40e_netdev_priv *np = netdev_priv(netdev); 1187 struct i40e_vsi *vsi = np->vsi; 1188 struct i40e_pf *pf = vsi->back; 1189 1190 strlcpy(drvinfo->driver, i40e_driver_name, sizeof(drvinfo->driver)); 1191 strlcpy(drvinfo->version, i40e_driver_version_str, 1192 sizeof(drvinfo->version)); 1193 strlcpy(drvinfo->fw_version, i40e_nvm_version_str(&pf->hw), 1194 sizeof(drvinfo->fw_version)); 1195 strlcpy(drvinfo->bus_info, pci_name(pf->pdev), 1196 sizeof(drvinfo->bus_info)); 1197 if (pf->hw.pf_id == 0) 1198 drvinfo->n_priv_flags = I40E_PRIV_FLAGS_GL_STR_LEN; 1199 else 1200 drvinfo->n_priv_flags = I40E_PRIV_FLAGS_STR_LEN; 1201 } 1202 1203 static void i40e_get_ringparam(struct net_device *netdev, 1204 struct ethtool_ringparam *ring) 1205 { 1206 struct i40e_netdev_priv *np = netdev_priv(netdev); 1207 struct i40e_pf *pf = np->vsi->back; 1208 struct i40e_vsi *vsi = pf->vsi[pf->lan_vsi]; 1209 1210 ring->rx_max_pending = I40E_MAX_NUM_DESCRIPTORS; 1211 ring->tx_max_pending = I40E_MAX_NUM_DESCRIPTORS; 1212 ring->rx_mini_max_pending = 0; 1213 ring->rx_jumbo_max_pending = 0; 1214 ring->rx_pending = vsi->rx_rings[0]->count; 1215 ring->tx_pending = vsi->tx_rings[0]->count; 1216 ring->rx_mini_pending = 0; 1217 ring->rx_jumbo_pending = 0; 1218 } 1219 1220 static int i40e_set_ringparam(struct net_device *netdev, 1221 struct ethtool_ringparam *ring) 1222 { 1223 struct i40e_ring *tx_rings = NULL, *rx_rings = NULL; 1224 struct i40e_netdev_priv *np = netdev_priv(netdev); 1225 struct i40e_vsi *vsi = np->vsi; 1226 struct i40e_pf *pf = vsi->back; 1227 u32 new_rx_count, new_tx_count; 1228 int i, err = 0; 1229 1230 if ((ring->rx_mini_pending) || (ring->rx_jumbo_pending)) 1231 return -EINVAL; 1232 1233 if (ring->tx_pending > I40E_MAX_NUM_DESCRIPTORS || 1234 ring->tx_pending < I40E_MIN_NUM_DESCRIPTORS || 1235 ring->rx_pending > I40E_MAX_NUM_DESCRIPTORS || 1236 ring->rx_pending < I40E_MIN_NUM_DESCRIPTORS) { 1237 netdev_info(netdev, 1238 "Descriptors requested (Tx: %d / Rx: %d) out of range [%d-%d]\n", 1239 ring->tx_pending, ring->rx_pending, 1240 I40E_MIN_NUM_DESCRIPTORS, I40E_MAX_NUM_DESCRIPTORS); 1241 return -EINVAL; 1242 } 1243 1244 new_tx_count = ALIGN(ring->tx_pending, I40E_REQ_DESCRIPTOR_MULTIPLE); 1245 new_rx_count = ALIGN(ring->rx_pending, I40E_REQ_DESCRIPTOR_MULTIPLE); 1246 1247 /* if nothing to do return success */ 1248 if ((new_tx_count == vsi->tx_rings[0]->count) && 1249 (new_rx_count == vsi->rx_rings[0]->count)) 1250 return 0; 1251 1252 while (test_and_set_bit(__I40E_CONFIG_BUSY, &pf->state)) 1253 usleep_range(1000, 2000); 1254 1255 if (!netif_running(vsi->netdev)) { 1256 /* simple case - set for the next time the netdev is started */ 1257 for (i = 0; i < vsi->num_queue_pairs; i++) { 1258 vsi->tx_rings[i]->count = new_tx_count; 1259 vsi->rx_rings[i]->count = new_rx_count; 1260 } 1261 goto done; 1262 } 1263 1264 /* We can't just free everything and then setup again, 1265 * because the ISRs in MSI-X mode get passed pointers 1266 * to the Tx and Rx ring structs. 1267 */ 1268 1269 /* alloc updated Tx resources */ 1270 if (new_tx_count != vsi->tx_rings[0]->count) { 1271 netdev_info(netdev, 1272 "Changing Tx descriptor count from %d to %d.\n", 1273 vsi->tx_rings[0]->count, new_tx_count); 1274 tx_rings = kcalloc(vsi->alloc_queue_pairs, 1275 sizeof(struct i40e_ring), GFP_KERNEL); 1276 if (!tx_rings) { 1277 err = -ENOMEM; 1278 goto done; 1279 } 1280 1281 for (i = 0; i < vsi->num_queue_pairs; i++) { 1282 /* clone ring and setup updated count */ 1283 tx_rings[i] = *vsi->tx_rings[i]; 1284 tx_rings[i].count = new_tx_count; 1285 /* the desc and bi pointers will be reallocated in the 1286 * setup call 1287 */ 1288 tx_rings[i].desc = NULL; 1289 tx_rings[i].rx_bi = NULL; 1290 err = i40e_setup_tx_descriptors(&tx_rings[i]); 1291 if (err) { 1292 while (i) { 1293 i--; 1294 i40e_free_tx_resources(&tx_rings[i]); 1295 } 1296 kfree(tx_rings); 1297 tx_rings = NULL; 1298 1299 goto done; 1300 } 1301 } 1302 } 1303 1304 /* alloc updated Rx resources */ 1305 if (new_rx_count != vsi->rx_rings[0]->count) { 1306 netdev_info(netdev, 1307 "Changing Rx descriptor count from %d to %d\n", 1308 vsi->rx_rings[0]->count, new_rx_count); 1309 rx_rings = kcalloc(vsi->alloc_queue_pairs, 1310 sizeof(struct i40e_ring), GFP_KERNEL); 1311 if (!rx_rings) { 1312 err = -ENOMEM; 1313 goto free_tx; 1314 } 1315 1316 for (i = 0; i < vsi->num_queue_pairs; i++) { 1317 /* this is to allow wr32 to have something to write to 1318 * during early allocation of Rx buffers 1319 */ 1320 u32 __iomem faketail = 0; 1321 struct i40e_ring *ring; 1322 u16 unused; 1323 1324 /* clone ring and setup updated count */ 1325 rx_rings[i] = *vsi->rx_rings[i]; 1326 rx_rings[i].count = new_rx_count; 1327 /* the desc and bi pointers will be reallocated in the 1328 * setup call 1329 */ 1330 rx_rings[i].desc = NULL; 1331 rx_rings[i].rx_bi = NULL; 1332 rx_rings[i].tail = (u8 __iomem *)&faketail; 1333 err = i40e_setup_rx_descriptors(&rx_rings[i]); 1334 if (err) 1335 goto rx_unwind; 1336 1337 /* now allocate the Rx buffers to make sure the OS 1338 * has enough memory, any failure here means abort 1339 */ 1340 ring = &rx_rings[i]; 1341 unused = I40E_DESC_UNUSED(ring); 1342 err = i40e_alloc_rx_buffers(ring, unused); 1343 rx_unwind: 1344 if (err) { 1345 do { 1346 i40e_free_rx_resources(&rx_rings[i]); 1347 } while (i--); 1348 kfree(rx_rings); 1349 rx_rings = NULL; 1350 1351 goto free_tx; 1352 } 1353 } 1354 } 1355 1356 /* Bring interface down, copy in the new ring info, 1357 * then restore the interface 1358 */ 1359 i40e_down(vsi); 1360 1361 if (tx_rings) { 1362 for (i = 0; i < vsi->num_queue_pairs; i++) { 1363 i40e_free_tx_resources(vsi->tx_rings[i]); 1364 *vsi->tx_rings[i] = tx_rings[i]; 1365 } 1366 kfree(tx_rings); 1367 tx_rings = NULL; 1368 } 1369 1370 if (rx_rings) { 1371 for (i = 0; i < vsi->num_queue_pairs; i++) { 1372 i40e_free_rx_resources(vsi->rx_rings[i]); 1373 /* get the real tail offset */ 1374 rx_rings[i].tail = vsi->rx_rings[i]->tail; 1375 /* this is to fake out the allocation routine 1376 * into thinking it has to realloc everything 1377 * but the recycling logic will let us re-use 1378 * the buffers allocated above 1379 */ 1380 rx_rings[i].next_to_use = 0; 1381 rx_rings[i].next_to_clean = 0; 1382 rx_rings[i].next_to_alloc = 0; 1383 /* do a struct copy */ 1384 *vsi->rx_rings[i] = rx_rings[i]; 1385 } 1386 kfree(rx_rings); 1387 rx_rings = NULL; 1388 } 1389 1390 i40e_up(vsi); 1391 1392 free_tx: 1393 /* error cleanup if the Rx allocations failed after getting Tx */ 1394 if (tx_rings) { 1395 for (i = 0; i < vsi->num_queue_pairs; i++) 1396 i40e_free_tx_resources(&tx_rings[i]); 1397 kfree(tx_rings); 1398 tx_rings = NULL; 1399 } 1400 1401 done: 1402 clear_bit(__I40E_CONFIG_BUSY, &pf->state); 1403 1404 return err; 1405 } 1406 1407 static int i40e_get_sset_count(struct net_device *netdev, int sset) 1408 { 1409 struct i40e_netdev_priv *np = netdev_priv(netdev); 1410 struct i40e_vsi *vsi = np->vsi; 1411 struct i40e_pf *pf = vsi->back; 1412 1413 switch (sset) { 1414 case ETH_SS_TEST: 1415 return I40E_TEST_LEN; 1416 case ETH_SS_STATS: 1417 if (vsi == pf->vsi[pf->lan_vsi] && pf->hw.partition_id == 1) { 1418 int len = I40E_PF_STATS_LEN(netdev); 1419 1420 if ((pf->lan_veb != I40E_NO_VEB) && 1421 (pf->flags & I40E_FLAG_VEB_STATS_ENABLED)) 1422 len += I40E_VEB_STATS_TOTAL; 1423 return len; 1424 } else { 1425 return I40E_VSI_STATS_LEN(netdev); 1426 } 1427 case ETH_SS_PRIV_FLAGS: 1428 if (pf->hw.pf_id == 0) 1429 return I40E_PRIV_FLAGS_GL_STR_LEN; 1430 else 1431 return I40E_PRIV_FLAGS_STR_LEN; 1432 default: 1433 return -EOPNOTSUPP; 1434 } 1435 } 1436 1437 static void i40e_get_ethtool_stats(struct net_device *netdev, 1438 struct ethtool_stats *stats, u64 *data) 1439 { 1440 struct i40e_netdev_priv *np = netdev_priv(netdev); 1441 struct i40e_ring *tx_ring, *rx_ring; 1442 struct i40e_vsi *vsi = np->vsi; 1443 struct i40e_pf *pf = vsi->back; 1444 int i = 0; 1445 char *p; 1446 int j; 1447 struct rtnl_link_stats64 *net_stats = i40e_get_vsi_stats_struct(vsi); 1448 unsigned int start; 1449 1450 i40e_update_stats(vsi); 1451 1452 for (j = 0; j < I40E_NETDEV_STATS_LEN; j++) { 1453 p = (char *)net_stats + i40e_gstrings_net_stats[j].stat_offset; 1454 data[i++] = (i40e_gstrings_net_stats[j].sizeof_stat == 1455 sizeof(u64)) ? *(u64 *)p : *(u32 *)p; 1456 } 1457 for (j = 0; j < I40E_MISC_STATS_LEN; j++) { 1458 p = (char *)vsi + i40e_gstrings_misc_stats[j].stat_offset; 1459 data[i++] = (i40e_gstrings_misc_stats[j].sizeof_stat == 1460 sizeof(u64)) ? *(u64 *)p : *(u32 *)p; 1461 } 1462 #ifdef I40E_FCOE 1463 for (j = 0; j < I40E_FCOE_STATS_LEN; j++) { 1464 p = (char *)vsi + i40e_gstrings_fcoe_stats[j].stat_offset; 1465 data[i++] = (i40e_gstrings_fcoe_stats[j].sizeof_stat == 1466 sizeof(u64)) ? *(u64 *)p : *(u32 *)p; 1467 } 1468 #endif 1469 rcu_read_lock(); 1470 for (j = 0; j < vsi->num_queue_pairs; j++) { 1471 tx_ring = ACCESS_ONCE(vsi->tx_rings[j]); 1472 1473 if (!tx_ring) 1474 continue; 1475 1476 /* process Tx ring statistics */ 1477 do { 1478 start = u64_stats_fetch_begin_irq(&tx_ring->syncp); 1479 data[i] = tx_ring->stats.packets; 1480 data[i + 1] = tx_ring->stats.bytes; 1481 } while (u64_stats_fetch_retry_irq(&tx_ring->syncp, start)); 1482 i += 2; 1483 1484 /* Rx ring is the 2nd half of the queue pair */ 1485 rx_ring = &tx_ring[1]; 1486 do { 1487 start = u64_stats_fetch_begin_irq(&rx_ring->syncp); 1488 data[i] = rx_ring->stats.packets; 1489 data[i + 1] = rx_ring->stats.bytes; 1490 } while (u64_stats_fetch_retry_irq(&rx_ring->syncp, start)); 1491 i += 2; 1492 } 1493 rcu_read_unlock(); 1494 if (vsi != pf->vsi[pf->lan_vsi] || pf->hw.partition_id != 1) 1495 return; 1496 1497 if ((pf->lan_veb != I40E_NO_VEB) && 1498 (pf->flags & I40E_FLAG_VEB_STATS_ENABLED)) { 1499 struct i40e_veb *veb = pf->veb[pf->lan_veb]; 1500 1501 for (j = 0; j < I40E_VEB_STATS_LEN; j++) { 1502 p = (char *)veb; 1503 p += i40e_gstrings_veb_stats[j].stat_offset; 1504 data[i++] = (i40e_gstrings_veb_stats[j].sizeof_stat == 1505 sizeof(u64)) ? *(u64 *)p : *(u32 *)p; 1506 } 1507 for (j = 0; j < I40E_MAX_TRAFFIC_CLASS; j++) { 1508 data[i++] = veb->tc_stats.tc_tx_packets[j]; 1509 data[i++] = veb->tc_stats.tc_tx_bytes[j]; 1510 data[i++] = veb->tc_stats.tc_rx_packets[j]; 1511 data[i++] = veb->tc_stats.tc_rx_bytes[j]; 1512 } 1513 } 1514 for (j = 0; j < I40E_GLOBAL_STATS_LEN; j++) { 1515 p = (char *)pf + i40e_gstrings_stats[j].stat_offset; 1516 data[i++] = (i40e_gstrings_stats[j].sizeof_stat == 1517 sizeof(u64)) ? *(u64 *)p : *(u32 *)p; 1518 } 1519 for (j = 0; j < I40E_MAX_USER_PRIORITY; j++) { 1520 data[i++] = pf->stats.priority_xon_tx[j]; 1521 data[i++] = pf->stats.priority_xoff_tx[j]; 1522 } 1523 for (j = 0; j < I40E_MAX_USER_PRIORITY; j++) { 1524 data[i++] = pf->stats.priority_xon_rx[j]; 1525 data[i++] = pf->stats.priority_xoff_rx[j]; 1526 } 1527 for (j = 0; j < I40E_MAX_USER_PRIORITY; j++) 1528 data[i++] = pf->stats.priority_xon_2_xoff[j]; 1529 } 1530 1531 static void i40e_get_strings(struct net_device *netdev, u32 stringset, 1532 u8 *data) 1533 { 1534 struct i40e_netdev_priv *np = netdev_priv(netdev); 1535 struct i40e_vsi *vsi = np->vsi; 1536 struct i40e_pf *pf = vsi->back; 1537 char *p = (char *)data; 1538 int i; 1539 1540 switch (stringset) { 1541 case ETH_SS_TEST: 1542 for (i = 0; i < I40E_TEST_LEN; i++) { 1543 memcpy(data, i40e_gstrings_test[i], ETH_GSTRING_LEN); 1544 data += ETH_GSTRING_LEN; 1545 } 1546 break; 1547 case ETH_SS_STATS: 1548 for (i = 0; i < I40E_NETDEV_STATS_LEN; i++) { 1549 snprintf(p, ETH_GSTRING_LEN, "%s", 1550 i40e_gstrings_net_stats[i].stat_string); 1551 p += ETH_GSTRING_LEN; 1552 } 1553 for (i = 0; i < I40E_MISC_STATS_LEN; i++) { 1554 snprintf(p, ETH_GSTRING_LEN, "%s", 1555 i40e_gstrings_misc_stats[i].stat_string); 1556 p += ETH_GSTRING_LEN; 1557 } 1558 #ifdef I40E_FCOE 1559 for (i = 0; i < I40E_FCOE_STATS_LEN; i++) { 1560 snprintf(p, ETH_GSTRING_LEN, "%s", 1561 i40e_gstrings_fcoe_stats[i].stat_string); 1562 p += ETH_GSTRING_LEN; 1563 } 1564 #endif 1565 for (i = 0; i < vsi->num_queue_pairs; i++) { 1566 snprintf(p, ETH_GSTRING_LEN, "tx-%d.tx_packets", i); 1567 p += ETH_GSTRING_LEN; 1568 snprintf(p, ETH_GSTRING_LEN, "tx-%d.tx_bytes", i); 1569 p += ETH_GSTRING_LEN; 1570 snprintf(p, ETH_GSTRING_LEN, "rx-%d.rx_packets", i); 1571 p += ETH_GSTRING_LEN; 1572 snprintf(p, ETH_GSTRING_LEN, "rx-%d.rx_bytes", i); 1573 p += ETH_GSTRING_LEN; 1574 } 1575 if (vsi != pf->vsi[pf->lan_vsi] || pf->hw.partition_id != 1) 1576 return; 1577 1578 if ((pf->lan_veb != I40E_NO_VEB) && 1579 (pf->flags & I40E_FLAG_VEB_STATS_ENABLED)) { 1580 for (i = 0; i < I40E_VEB_STATS_LEN; i++) { 1581 snprintf(p, ETH_GSTRING_LEN, "veb.%s", 1582 i40e_gstrings_veb_stats[i].stat_string); 1583 p += ETH_GSTRING_LEN; 1584 } 1585 for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++) { 1586 snprintf(p, ETH_GSTRING_LEN, 1587 "veb.tc_%d_tx_packets", i); 1588 p += ETH_GSTRING_LEN; 1589 snprintf(p, ETH_GSTRING_LEN, 1590 "veb.tc_%d_tx_bytes", i); 1591 p += ETH_GSTRING_LEN; 1592 snprintf(p, ETH_GSTRING_LEN, 1593 "veb.tc_%d_rx_packets", i); 1594 p += ETH_GSTRING_LEN; 1595 snprintf(p, ETH_GSTRING_LEN, 1596 "veb.tc_%d_rx_bytes", i); 1597 p += ETH_GSTRING_LEN; 1598 } 1599 } 1600 for (i = 0; i < I40E_GLOBAL_STATS_LEN; i++) { 1601 snprintf(p, ETH_GSTRING_LEN, "port.%s", 1602 i40e_gstrings_stats[i].stat_string); 1603 p += ETH_GSTRING_LEN; 1604 } 1605 for (i = 0; i < I40E_MAX_USER_PRIORITY; i++) { 1606 snprintf(p, ETH_GSTRING_LEN, 1607 "port.tx_priority_%d_xon", i); 1608 p += ETH_GSTRING_LEN; 1609 snprintf(p, ETH_GSTRING_LEN, 1610 "port.tx_priority_%d_xoff", i); 1611 p += ETH_GSTRING_LEN; 1612 } 1613 for (i = 0; i < I40E_MAX_USER_PRIORITY; i++) { 1614 snprintf(p, ETH_GSTRING_LEN, 1615 "port.rx_priority_%d_xon", i); 1616 p += ETH_GSTRING_LEN; 1617 snprintf(p, ETH_GSTRING_LEN, 1618 "port.rx_priority_%d_xoff", i); 1619 p += ETH_GSTRING_LEN; 1620 } 1621 for (i = 0; i < I40E_MAX_USER_PRIORITY; i++) { 1622 snprintf(p, ETH_GSTRING_LEN, 1623 "port.rx_priority_%d_xon_2_xoff", i); 1624 p += ETH_GSTRING_LEN; 1625 } 1626 /* BUG_ON(p - data != I40E_STATS_LEN * ETH_GSTRING_LEN); */ 1627 break; 1628 case ETH_SS_PRIV_FLAGS: 1629 if (pf->hw.pf_id == 0) { 1630 for (i = 0; i < I40E_PRIV_FLAGS_GL_STR_LEN; i++) { 1631 memcpy(data, i40e_priv_flags_strings_gl[i], 1632 ETH_GSTRING_LEN); 1633 data += ETH_GSTRING_LEN; 1634 } 1635 } else { 1636 for (i = 0; i < I40E_PRIV_FLAGS_STR_LEN; i++) { 1637 memcpy(data, i40e_priv_flags_strings[i], 1638 ETH_GSTRING_LEN); 1639 data += ETH_GSTRING_LEN; 1640 } 1641 } 1642 break; 1643 default: 1644 break; 1645 } 1646 } 1647 1648 static int i40e_get_ts_info(struct net_device *dev, 1649 struct ethtool_ts_info *info) 1650 { 1651 struct i40e_pf *pf = i40e_netdev_to_pf(dev); 1652 1653 /* only report HW timestamping if PTP is enabled */ 1654 if (!(pf->flags & I40E_FLAG_PTP)) 1655 return ethtool_op_get_ts_info(dev, info); 1656 1657 info->so_timestamping = SOF_TIMESTAMPING_TX_SOFTWARE | 1658 SOF_TIMESTAMPING_RX_SOFTWARE | 1659 SOF_TIMESTAMPING_SOFTWARE | 1660 SOF_TIMESTAMPING_TX_HARDWARE | 1661 SOF_TIMESTAMPING_RX_HARDWARE | 1662 SOF_TIMESTAMPING_RAW_HARDWARE; 1663 1664 if (pf->ptp_clock) 1665 info->phc_index = ptp_clock_index(pf->ptp_clock); 1666 else 1667 info->phc_index = -1; 1668 1669 info->tx_types = BIT(HWTSTAMP_TX_OFF) | BIT(HWTSTAMP_TX_ON); 1670 1671 info->rx_filters = BIT(HWTSTAMP_FILTER_NONE) | 1672 BIT(HWTSTAMP_FILTER_PTP_V1_L4_EVENT) | 1673 BIT(HWTSTAMP_FILTER_PTP_V2_EVENT); 1674 1675 return 0; 1676 } 1677 1678 static int i40e_link_test(struct net_device *netdev, u64 *data) 1679 { 1680 struct i40e_netdev_priv *np = netdev_priv(netdev); 1681 struct i40e_pf *pf = np->vsi->back; 1682 i40e_status status; 1683 bool link_up = false; 1684 1685 netif_info(pf, hw, netdev, "link test\n"); 1686 status = i40e_get_link_status(&pf->hw, &link_up); 1687 if (status) { 1688 netif_err(pf, drv, netdev, "link query timed out, please retry test\n"); 1689 *data = 1; 1690 return *data; 1691 } 1692 1693 if (link_up) 1694 *data = 0; 1695 else 1696 *data = 1; 1697 1698 return *data; 1699 } 1700 1701 static int i40e_reg_test(struct net_device *netdev, u64 *data) 1702 { 1703 struct i40e_netdev_priv *np = netdev_priv(netdev); 1704 struct i40e_pf *pf = np->vsi->back; 1705 1706 netif_info(pf, hw, netdev, "register test\n"); 1707 *data = i40e_diag_reg_test(&pf->hw); 1708 1709 return *data; 1710 } 1711 1712 static int i40e_eeprom_test(struct net_device *netdev, u64 *data) 1713 { 1714 struct i40e_netdev_priv *np = netdev_priv(netdev); 1715 struct i40e_pf *pf = np->vsi->back; 1716 1717 netif_info(pf, hw, netdev, "eeprom test\n"); 1718 *data = i40e_diag_eeprom_test(&pf->hw); 1719 1720 /* forcebly clear the NVM Update state machine */ 1721 pf->hw.nvmupd_state = I40E_NVMUPD_STATE_INIT; 1722 1723 return *data; 1724 } 1725 1726 static int i40e_intr_test(struct net_device *netdev, u64 *data) 1727 { 1728 struct i40e_netdev_priv *np = netdev_priv(netdev); 1729 struct i40e_pf *pf = np->vsi->back; 1730 u16 swc_old = pf->sw_int_count; 1731 1732 netif_info(pf, hw, netdev, "interrupt test\n"); 1733 wr32(&pf->hw, I40E_PFINT_DYN_CTL0, 1734 (I40E_PFINT_DYN_CTL0_INTENA_MASK | 1735 I40E_PFINT_DYN_CTL0_SWINT_TRIG_MASK | 1736 I40E_PFINT_DYN_CTL0_ITR_INDX_MASK | 1737 I40E_PFINT_DYN_CTL0_SW_ITR_INDX_ENA_MASK | 1738 I40E_PFINT_DYN_CTL0_SW_ITR_INDX_MASK)); 1739 usleep_range(1000, 2000); 1740 *data = (swc_old == pf->sw_int_count); 1741 1742 return *data; 1743 } 1744 1745 static inline bool i40e_active_vfs(struct i40e_pf *pf) 1746 { 1747 struct i40e_vf *vfs = pf->vf; 1748 int i; 1749 1750 for (i = 0; i < pf->num_alloc_vfs; i++) 1751 if (test_bit(I40E_VF_STAT_ACTIVE, &vfs[i].vf_states)) 1752 return true; 1753 return false; 1754 } 1755 1756 static inline bool i40e_active_vmdqs(struct i40e_pf *pf) 1757 { 1758 return !!i40e_find_vsi_by_type(pf, I40E_VSI_VMDQ2); 1759 } 1760 1761 static void i40e_diag_test(struct net_device *netdev, 1762 struct ethtool_test *eth_test, u64 *data) 1763 { 1764 struct i40e_netdev_priv *np = netdev_priv(netdev); 1765 bool if_running = netif_running(netdev); 1766 struct i40e_pf *pf = np->vsi->back; 1767 1768 if (eth_test->flags == ETH_TEST_FL_OFFLINE) { 1769 /* Offline tests */ 1770 netif_info(pf, drv, netdev, "offline testing starting\n"); 1771 1772 set_bit(__I40E_TESTING, &pf->state); 1773 1774 if (i40e_active_vfs(pf) || i40e_active_vmdqs(pf)) { 1775 dev_warn(&pf->pdev->dev, 1776 "Please take active VFs and Netqueues offline and restart the adapter before running NIC diagnostics\n"); 1777 data[I40E_ETH_TEST_REG] = 1; 1778 data[I40E_ETH_TEST_EEPROM] = 1; 1779 data[I40E_ETH_TEST_INTR] = 1; 1780 data[I40E_ETH_TEST_LINK] = 1; 1781 eth_test->flags |= ETH_TEST_FL_FAILED; 1782 clear_bit(__I40E_TESTING, &pf->state); 1783 goto skip_ol_tests; 1784 } 1785 1786 /* If the device is online then take it offline */ 1787 if (if_running) 1788 /* indicate we're in test mode */ 1789 i40e_close(netdev); 1790 else 1791 /* This reset does not affect link - if it is 1792 * changed to a type of reset that does affect 1793 * link then the following link test would have 1794 * to be moved to before the reset 1795 */ 1796 i40e_do_reset(pf, BIT(__I40E_PF_RESET_REQUESTED)); 1797 1798 if (i40e_link_test(netdev, &data[I40E_ETH_TEST_LINK])) 1799 eth_test->flags |= ETH_TEST_FL_FAILED; 1800 1801 if (i40e_eeprom_test(netdev, &data[I40E_ETH_TEST_EEPROM])) 1802 eth_test->flags |= ETH_TEST_FL_FAILED; 1803 1804 if (i40e_intr_test(netdev, &data[I40E_ETH_TEST_INTR])) 1805 eth_test->flags |= ETH_TEST_FL_FAILED; 1806 1807 /* run reg test last, a reset is required after it */ 1808 if (i40e_reg_test(netdev, &data[I40E_ETH_TEST_REG])) 1809 eth_test->flags |= ETH_TEST_FL_FAILED; 1810 1811 clear_bit(__I40E_TESTING, &pf->state); 1812 i40e_do_reset(pf, BIT(__I40E_PF_RESET_REQUESTED)); 1813 1814 if (if_running) 1815 i40e_open(netdev); 1816 } else { 1817 /* Online tests */ 1818 netif_info(pf, drv, netdev, "online testing starting\n"); 1819 1820 if (i40e_link_test(netdev, &data[I40E_ETH_TEST_LINK])) 1821 eth_test->flags |= ETH_TEST_FL_FAILED; 1822 1823 /* Offline only tests, not run in online; pass by default */ 1824 data[I40E_ETH_TEST_REG] = 0; 1825 data[I40E_ETH_TEST_EEPROM] = 0; 1826 data[I40E_ETH_TEST_INTR] = 0; 1827 } 1828 1829 skip_ol_tests: 1830 1831 netif_info(pf, drv, netdev, "testing finished\n"); 1832 } 1833 1834 static void i40e_get_wol(struct net_device *netdev, 1835 struct ethtool_wolinfo *wol) 1836 { 1837 struct i40e_netdev_priv *np = netdev_priv(netdev); 1838 struct i40e_pf *pf = np->vsi->back; 1839 struct i40e_hw *hw = &pf->hw; 1840 u16 wol_nvm_bits; 1841 1842 /* NVM bit on means WoL disabled for the port */ 1843 i40e_read_nvm_word(hw, I40E_SR_NVM_WAKE_ON_LAN, &wol_nvm_bits); 1844 if ((BIT(hw->port) & wol_nvm_bits) || (hw->partition_id != 1)) { 1845 wol->supported = 0; 1846 wol->wolopts = 0; 1847 } else { 1848 wol->supported = WAKE_MAGIC; 1849 wol->wolopts = (pf->wol_en ? WAKE_MAGIC : 0); 1850 } 1851 } 1852 1853 /** 1854 * i40e_set_wol - set the WakeOnLAN configuration 1855 * @netdev: the netdev in question 1856 * @wol: the ethtool WoL setting data 1857 **/ 1858 static int i40e_set_wol(struct net_device *netdev, struct ethtool_wolinfo *wol) 1859 { 1860 struct i40e_netdev_priv *np = netdev_priv(netdev); 1861 struct i40e_pf *pf = np->vsi->back; 1862 struct i40e_vsi *vsi = np->vsi; 1863 struct i40e_hw *hw = &pf->hw; 1864 u16 wol_nvm_bits; 1865 1866 /* WoL not supported if this isn't the controlling PF on the port */ 1867 if (hw->partition_id != 1) { 1868 i40e_partition_setting_complaint(pf); 1869 return -EOPNOTSUPP; 1870 } 1871 1872 if (vsi != pf->vsi[pf->lan_vsi]) 1873 return -EOPNOTSUPP; 1874 1875 /* NVM bit on means WoL disabled for the port */ 1876 i40e_read_nvm_word(hw, I40E_SR_NVM_WAKE_ON_LAN, &wol_nvm_bits); 1877 if (BIT(hw->port) & wol_nvm_bits) 1878 return -EOPNOTSUPP; 1879 1880 /* only magic packet is supported */ 1881 if (wol->wolopts && (wol->wolopts != WAKE_MAGIC)) 1882 return -EOPNOTSUPP; 1883 1884 /* is this a new value? */ 1885 if (pf->wol_en != !!wol->wolopts) { 1886 pf->wol_en = !!wol->wolopts; 1887 device_set_wakeup_enable(&pf->pdev->dev, pf->wol_en); 1888 } 1889 1890 return 0; 1891 } 1892 1893 static int i40e_set_phys_id(struct net_device *netdev, 1894 enum ethtool_phys_id_state state) 1895 { 1896 struct i40e_netdev_priv *np = netdev_priv(netdev); 1897 i40e_status ret = 0; 1898 struct i40e_pf *pf = np->vsi->back; 1899 struct i40e_hw *hw = &pf->hw; 1900 int blink_freq = 2; 1901 u16 temp_status; 1902 1903 switch (state) { 1904 case ETHTOOL_ID_ACTIVE: 1905 if (!(pf->flags & I40E_FLAG_HAVE_10GBASET_PHY)) { 1906 pf->led_status = i40e_led_get(hw); 1907 } else { 1908 i40e_aq_set_phy_debug(hw, I40E_PHY_DEBUG_ALL, NULL); 1909 ret = i40e_led_get_phy(hw, &temp_status, 1910 &pf->phy_led_val); 1911 pf->led_status = temp_status; 1912 } 1913 return blink_freq; 1914 case ETHTOOL_ID_ON: 1915 if (!(pf->flags & I40E_FLAG_HAVE_10GBASET_PHY)) 1916 i40e_led_set(hw, 0xf, false); 1917 else 1918 ret = i40e_led_set_phy(hw, true, pf->led_status, 0); 1919 break; 1920 case ETHTOOL_ID_OFF: 1921 if (!(pf->flags & I40E_FLAG_HAVE_10GBASET_PHY)) 1922 i40e_led_set(hw, 0x0, false); 1923 else 1924 ret = i40e_led_set_phy(hw, false, pf->led_status, 0); 1925 break; 1926 case ETHTOOL_ID_INACTIVE: 1927 if (!(pf->flags & I40E_FLAG_HAVE_10GBASET_PHY)) { 1928 i40e_led_set(hw, false, pf->led_status); 1929 } else { 1930 ret = i40e_led_set_phy(hw, false, pf->led_status, 1931 (pf->phy_led_val | 1932 I40E_PHY_LED_MODE_ORIG)); 1933 i40e_aq_set_phy_debug(hw, 0, NULL); 1934 } 1935 break; 1936 default: 1937 break; 1938 } 1939 if (ret) 1940 return -ENOENT; 1941 else 1942 return 0; 1943 } 1944 1945 /* NOTE: i40e hardware uses a conversion factor of 2 for Interrupt 1946 * Throttle Rate (ITR) ie. ITR(1) = 2us ITR(10) = 20 us, and also 1947 * 125us (8000 interrupts per second) == ITR(62) 1948 */ 1949 1950 /** 1951 * __i40e_get_coalesce - get per-queue coalesce settings 1952 * @netdev: the netdev to check 1953 * @ec: ethtool coalesce data structure 1954 * @queue: which queue to pick 1955 * 1956 * Gets the per-queue settings for coalescence. Specifically Rx and Tx usecs 1957 * are per queue. If queue is <0 then we default to queue 0 as the 1958 * representative value. 1959 **/ 1960 static int __i40e_get_coalesce(struct net_device *netdev, 1961 struct ethtool_coalesce *ec, 1962 int queue) 1963 { 1964 struct i40e_netdev_priv *np = netdev_priv(netdev); 1965 struct i40e_ring *rx_ring, *tx_ring; 1966 struct i40e_vsi *vsi = np->vsi; 1967 1968 ec->tx_max_coalesced_frames_irq = vsi->work_limit; 1969 ec->rx_max_coalesced_frames_irq = vsi->work_limit; 1970 1971 /* rx and tx usecs has per queue value. If user doesn't specify the queue, 1972 * return queue 0's value to represent. 1973 */ 1974 if (queue < 0) { 1975 queue = 0; 1976 } else if (queue >= vsi->num_queue_pairs) { 1977 return -EINVAL; 1978 } 1979 1980 rx_ring = vsi->rx_rings[queue]; 1981 tx_ring = vsi->tx_rings[queue]; 1982 1983 if (ITR_IS_DYNAMIC(rx_ring->rx_itr_setting)) 1984 ec->use_adaptive_rx_coalesce = 1; 1985 1986 if (ITR_IS_DYNAMIC(tx_ring->tx_itr_setting)) 1987 ec->use_adaptive_tx_coalesce = 1; 1988 1989 ec->rx_coalesce_usecs = rx_ring->rx_itr_setting & ~I40E_ITR_DYNAMIC; 1990 ec->tx_coalesce_usecs = tx_ring->tx_itr_setting & ~I40E_ITR_DYNAMIC; 1991 1992 1993 /* we use the _usecs_high to store/set the interrupt rate limit 1994 * that the hardware supports, that almost but not quite 1995 * fits the original intent of the ethtool variable, 1996 * the rx_coalesce_usecs_high limits total interrupts 1997 * per second from both tx/rx sources. 1998 */ 1999 ec->rx_coalesce_usecs_high = vsi->int_rate_limit; 2000 ec->tx_coalesce_usecs_high = vsi->int_rate_limit; 2001 2002 return 0; 2003 } 2004 2005 /** 2006 * i40e_get_coalesce - get a netdev's coalesce settings 2007 * @netdev: the netdev to check 2008 * @ec: ethtool coalesce data structure 2009 * 2010 * Gets the coalesce settings for a particular netdev. Note that if user has 2011 * modified per-queue settings, this only guarantees to represent queue 0. See 2012 * __i40e_get_coalesce for more details. 2013 **/ 2014 static int i40e_get_coalesce(struct net_device *netdev, 2015 struct ethtool_coalesce *ec) 2016 { 2017 return __i40e_get_coalesce(netdev, ec, -1); 2018 } 2019 2020 /** 2021 * i40e_get_per_queue_coalesce - gets coalesce settings for particular queue 2022 * @netdev: netdev structure 2023 * @ec: ethtool's coalesce settings 2024 * @queue: the particular queue to read 2025 * 2026 * Will read a specific queue's coalesce settings 2027 **/ 2028 static int i40e_get_per_queue_coalesce(struct net_device *netdev, u32 queue, 2029 struct ethtool_coalesce *ec) 2030 { 2031 return __i40e_get_coalesce(netdev, ec, queue); 2032 } 2033 2034 /** 2035 * i40e_set_itr_per_queue - set ITR values for specific queue 2036 * @vsi: the VSI to set values for 2037 * @ec: coalesce settings from ethtool 2038 * @queue: the queue to modify 2039 * 2040 * Change the ITR settings for a specific queue. 2041 **/ 2042 2043 static void i40e_set_itr_per_queue(struct i40e_vsi *vsi, 2044 struct ethtool_coalesce *ec, 2045 int queue) 2046 { 2047 struct i40e_pf *pf = vsi->back; 2048 struct i40e_hw *hw = &pf->hw; 2049 struct i40e_q_vector *q_vector; 2050 u16 vector, intrl; 2051 2052 intrl = INTRL_USEC_TO_REG(vsi->int_rate_limit); 2053 2054 vsi->rx_rings[queue]->rx_itr_setting = ec->rx_coalesce_usecs; 2055 vsi->tx_rings[queue]->tx_itr_setting = ec->tx_coalesce_usecs; 2056 2057 if (ec->use_adaptive_rx_coalesce) 2058 vsi->rx_rings[queue]->rx_itr_setting |= I40E_ITR_DYNAMIC; 2059 else 2060 vsi->rx_rings[queue]->rx_itr_setting &= ~I40E_ITR_DYNAMIC; 2061 2062 if (ec->use_adaptive_tx_coalesce) 2063 vsi->tx_rings[queue]->tx_itr_setting |= I40E_ITR_DYNAMIC; 2064 else 2065 vsi->tx_rings[queue]->tx_itr_setting &= ~I40E_ITR_DYNAMIC; 2066 2067 q_vector = vsi->rx_rings[queue]->q_vector; 2068 q_vector->rx.itr = ITR_TO_REG(vsi->rx_rings[queue]->rx_itr_setting); 2069 vector = vsi->base_vector + q_vector->v_idx; 2070 wr32(hw, I40E_PFINT_ITRN(I40E_RX_ITR, vector - 1), q_vector->rx.itr); 2071 2072 q_vector = vsi->tx_rings[queue]->q_vector; 2073 q_vector->tx.itr = ITR_TO_REG(vsi->tx_rings[queue]->tx_itr_setting); 2074 vector = vsi->base_vector + q_vector->v_idx; 2075 wr32(hw, I40E_PFINT_ITRN(I40E_TX_ITR, vector - 1), q_vector->tx.itr); 2076 2077 wr32(hw, I40E_PFINT_RATEN(vector - 1), intrl); 2078 i40e_flush(hw); 2079 } 2080 2081 /** 2082 * __i40e_set_coalesce - set coalesce settings for particular queue 2083 * @netdev: the netdev to change 2084 * @ec: ethtool coalesce settings 2085 * @queue: the queue to change 2086 * 2087 * Sets the coalesce settings for a particular queue. 2088 **/ 2089 static int __i40e_set_coalesce(struct net_device *netdev, 2090 struct ethtool_coalesce *ec, 2091 int queue) 2092 { 2093 struct i40e_netdev_priv *np = netdev_priv(netdev); 2094 struct i40e_vsi *vsi = np->vsi; 2095 struct i40e_pf *pf = vsi->back; 2096 int i; 2097 2098 if (ec->tx_max_coalesced_frames_irq || ec->rx_max_coalesced_frames_irq) 2099 vsi->work_limit = ec->tx_max_coalesced_frames_irq; 2100 2101 /* tx_coalesce_usecs_high is ignored, use rx-usecs-high instead */ 2102 if (ec->tx_coalesce_usecs_high != vsi->int_rate_limit) { 2103 netif_info(pf, drv, netdev, "tx-usecs-high is not used, please program rx-usecs-high\n"); 2104 return -EINVAL; 2105 } 2106 2107 if (ec->rx_coalesce_usecs_high >= INTRL_REG_TO_USEC(I40E_MAX_INTRL)) { 2108 netif_info(pf, drv, netdev, "Invalid value, rx-usecs-high range is 0-235\n"); 2109 return -EINVAL; 2110 } 2111 2112 if (ec->rx_coalesce_usecs == 0) { 2113 if (ec->use_adaptive_rx_coalesce) 2114 netif_info(pf, drv, netdev, "rx-usecs=0, need to disable adaptive-rx for a complete disable\n"); 2115 } else if ((ec->rx_coalesce_usecs < (I40E_MIN_ITR << 1)) || 2116 (ec->rx_coalesce_usecs > (I40E_MAX_ITR << 1))) { 2117 netif_info(pf, drv, netdev, "Invalid value, rx-usecs range is 0-8160\n"); 2118 return -EINVAL; 2119 } 2120 2121 vsi->int_rate_limit = ec->rx_coalesce_usecs_high; 2122 2123 if (ec->tx_coalesce_usecs == 0) { 2124 if (ec->use_adaptive_tx_coalesce) 2125 netif_info(pf, drv, netdev, "tx-usecs=0, need to disable adaptive-tx for a complete disable\n"); 2126 } else if ((ec->tx_coalesce_usecs < (I40E_MIN_ITR << 1)) || 2127 (ec->tx_coalesce_usecs > (I40E_MAX_ITR << 1))) { 2128 netif_info(pf, drv, netdev, "Invalid value, tx-usecs range is 0-8160\n"); 2129 return -EINVAL; 2130 } 2131 2132 /* rx and tx usecs has per queue value. If user doesn't specify the queue, 2133 * apply to all queues. 2134 */ 2135 if (queue < 0) { 2136 for (i = 0; i < vsi->num_queue_pairs; i++) 2137 i40e_set_itr_per_queue(vsi, ec, i); 2138 } else if (queue < vsi->num_queue_pairs) { 2139 i40e_set_itr_per_queue(vsi, ec, queue); 2140 } else { 2141 netif_info(pf, drv, netdev, "Invalid queue value, queue range is 0 - %d\n", 2142 vsi->num_queue_pairs - 1); 2143 return -EINVAL; 2144 } 2145 2146 return 0; 2147 } 2148 2149 /** 2150 * i40e_set_coalesce - set coalesce settings for every queue on the netdev 2151 * @netdev: the netdev to change 2152 * @ec: ethtool coalesce settings 2153 * 2154 * This will set each queue to the same coalesce settings. 2155 **/ 2156 static int i40e_set_coalesce(struct net_device *netdev, 2157 struct ethtool_coalesce *ec) 2158 { 2159 return __i40e_set_coalesce(netdev, ec, -1); 2160 } 2161 2162 /** 2163 * i40e_set_per_queue_coalesce - set specific queue's coalesce settings 2164 * @netdev: the netdev to change 2165 * @ec: ethtool's coalesce settings 2166 * @queue: the queue to change 2167 * 2168 * Sets the specified queue's coalesce settings. 2169 **/ 2170 static int i40e_set_per_queue_coalesce(struct net_device *netdev, u32 queue, 2171 struct ethtool_coalesce *ec) 2172 { 2173 return __i40e_set_coalesce(netdev, ec, queue); 2174 } 2175 2176 /** 2177 * i40e_get_rss_hash_opts - Get RSS hash Input Set for each flow type 2178 * @pf: pointer to the physical function struct 2179 * @cmd: ethtool rxnfc command 2180 * 2181 * Returns Success if the flow is supported, else Invalid Input. 2182 **/ 2183 static int i40e_get_rss_hash_opts(struct i40e_pf *pf, struct ethtool_rxnfc *cmd) 2184 { 2185 struct i40e_hw *hw = &pf->hw; 2186 u8 flow_pctype = 0; 2187 u64 i_set = 0; 2188 2189 cmd->data = 0; 2190 2191 switch (cmd->flow_type) { 2192 case TCP_V4_FLOW: 2193 flow_pctype = I40E_FILTER_PCTYPE_NONF_IPV4_TCP; 2194 break; 2195 case UDP_V4_FLOW: 2196 flow_pctype = I40E_FILTER_PCTYPE_NONF_IPV4_UDP; 2197 break; 2198 case TCP_V6_FLOW: 2199 flow_pctype = I40E_FILTER_PCTYPE_NONF_IPV6_TCP; 2200 break; 2201 case UDP_V6_FLOW: 2202 flow_pctype = I40E_FILTER_PCTYPE_NONF_IPV6_UDP; 2203 break; 2204 case SCTP_V4_FLOW: 2205 case AH_ESP_V4_FLOW: 2206 case AH_V4_FLOW: 2207 case ESP_V4_FLOW: 2208 case IPV4_FLOW: 2209 case SCTP_V6_FLOW: 2210 case AH_ESP_V6_FLOW: 2211 case AH_V6_FLOW: 2212 case ESP_V6_FLOW: 2213 case IPV6_FLOW: 2214 /* Default is src/dest for IP, no matter the L4 hashing */ 2215 cmd->data |= RXH_IP_SRC | RXH_IP_DST; 2216 break; 2217 default: 2218 return -EINVAL; 2219 } 2220 2221 /* Read flow based hash input set register */ 2222 if (flow_pctype) { 2223 i_set = (u64)i40e_read_rx_ctl(hw, I40E_GLQF_HASH_INSET(0, 2224 flow_pctype)) | 2225 ((u64)i40e_read_rx_ctl(hw, I40E_GLQF_HASH_INSET(1, 2226 flow_pctype)) << 32); 2227 } 2228 2229 /* Process bits of hash input set */ 2230 if (i_set) { 2231 if (i_set & I40E_L4_SRC_MASK) 2232 cmd->data |= RXH_L4_B_0_1; 2233 if (i_set & I40E_L4_DST_MASK) 2234 cmd->data |= RXH_L4_B_2_3; 2235 2236 if (cmd->flow_type == TCP_V4_FLOW || 2237 cmd->flow_type == UDP_V4_FLOW) { 2238 if (i_set & I40E_L3_SRC_MASK) 2239 cmd->data |= RXH_IP_SRC; 2240 if (i_set & I40E_L3_DST_MASK) 2241 cmd->data |= RXH_IP_DST; 2242 } else if (cmd->flow_type == TCP_V6_FLOW || 2243 cmd->flow_type == UDP_V6_FLOW) { 2244 if (i_set & I40E_L3_V6_SRC_MASK) 2245 cmd->data |= RXH_IP_SRC; 2246 if (i_set & I40E_L3_V6_DST_MASK) 2247 cmd->data |= RXH_IP_DST; 2248 } 2249 } 2250 2251 return 0; 2252 } 2253 2254 /** 2255 * i40e_get_ethtool_fdir_all - Populates the rule count of a command 2256 * @pf: Pointer to the physical function struct 2257 * @cmd: The command to get or set Rx flow classification rules 2258 * @rule_locs: Array of used rule locations 2259 * 2260 * This function populates both the total and actual rule count of 2261 * the ethtool flow classification command 2262 * 2263 * Returns 0 on success or -EMSGSIZE if entry not found 2264 **/ 2265 static int i40e_get_ethtool_fdir_all(struct i40e_pf *pf, 2266 struct ethtool_rxnfc *cmd, 2267 u32 *rule_locs) 2268 { 2269 struct i40e_fdir_filter *rule; 2270 struct hlist_node *node2; 2271 int cnt = 0; 2272 2273 /* report total rule count */ 2274 cmd->data = i40e_get_fd_cnt_all(pf); 2275 2276 hlist_for_each_entry_safe(rule, node2, 2277 &pf->fdir_filter_list, fdir_node) { 2278 if (cnt == cmd->rule_cnt) 2279 return -EMSGSIZE; 2280 2281 rule_locs[cnt] = rule->fd_id; 2282 cnt++; 2283 } 2284 2285 cmd->rule_cnt = cnt; 2286 2287 return 0; 2288 } 2289 2290 /** 2291 * i40e_get_ethtool_fdir_entry - Look up a filter based on Rx flow 2292 * @pf: Pointer to the physical function struct 2293 * @cmd: The command to get or set Rx flow classification rules 2294 * 2295 * This function looks up a filter based on the Rx flow classification 2296 * command and fills the flow spec info for it if found 2297 * 2298 * Returns 0 on success or -EINVAL if filter not found 2299 **/ 2300 static int i40e_get_ethtool_fdir_entry(struct i40e_pf *pf, 2301 struct ethtool_rxnfc *cmd) 2302 { 2303 struct ethtool_rx_flow_spec *fsp = 2304 (struct ethtool_rx_flow_spec *)&cmd->fs; 2305 struct i40e_fdir_filter *rule = NULL; 2306 struct hlist_node *node2; 2307 2308 hlist_for_each_entry_safe(rule, node2, 2309 &pf->fdir_filter_list, fdir_node) { 2310 if (fsp->location <= rule->fd_id) 2311 break; 2312 } 2313 2314 if (!rule || fsp->location != rule->fd_id) 2315 return -EINVAL; 2316 2317 fsp->flow_type = rule->flow_type; 2318 if (fsp->flow_type == IP_USER_FLOW) { 2319 fsp->h_u.usr_ip4_spec.ip_ver = ETH_RX_NFC_IP4; 2320 fsp->h_u.usr_ip4_spec.proto = 0; 2321 fsp->m_u.usr_ip4_spec.proto = 0; 2322 } 2323 2324 /* Reverse the src and dest notion, since the HW views them from 2325 * Tx perspective where as the user expects it from Rx filter view. 2326 */ 2327 fsp->h_u.tcp_ip4_spec.psrc = rule->dst_port; 2328 fsp->h_u.tcp_ip4_spec.pdst = rule->src_port; 2329 fsp->h_u.tcp_ip4_spec.ip4src = rule->dst_ip[0]; 2330 fsp->h_u.tcp_ip4_spec.ip4dst = rule->src_ip[0]; 2331 2332 if (rule->dest_ctl == I40E_FILTER_PROGRAM_DESC_DEST_DROP_PACKET) 2333 fsp->ring_cookie = RX_CLS_FLOW_DISC; 2334 else 2335 fsp->ring_cookie = rule->q_index; 2336 2337 if (rule->dest_vsi != pf->vsi[pf->lan_vsi]->id) { 2338 struct i40e_vsi *vsi; 2339 2340 vsi = i40e_find_vsi_from_id(pf, rule->dest_vsi); 2341 if (vsi && vsi->type == I40E_VSI_SRIOV) { 2342 fsp->h_ext.data[1] = htonl(vsi->vf_id); 2343 fsp->m_ext.data[1] = htonl(0x1); 2344 } 2345 } 2346 2347 return 0; 2348 } 2349 2350 /** 2351 * i40e_get_rxnfc - command to get RX flow classification rules 2352 * @netdev: network interface device structure 2353 * @cmd: ethtool rxnfc command 2354 * 2355 * Returns Success if the command is supported. 2356 **/ 2357 static int i40e_get_rxnfc(struct net_device *netdev, struct ethtool_rxnfc *cmd, 2358 u32 *rule_locs) 2359 { 2360 struct i40e_netdev_priv *np = netdev_priv(netdev); 2361 struct i40e_vsi *vsi = np->vsi; 2362 struct i40e_pf *pf = vsi->back; 2363 int ret = -EOPNOTSUPP; 2364 2365 switch (cmd->cmd) { 2366 case ETHTOOL_GRXRINGS: 2367 cmd->data = vsi->num_queue_pairs; 2368 ret = 0; 2369 break; 2370 case ETHTOOL_GRXFH: 2371 ret = i40e_get_rss_hash_opts(pf, cmd); 2372 break; 2373 case ETHTOOL_GRXCLSRLCNT: 2374 cmd->rule_cnt = pf->fdir_pf_active_filters; 2375 /* report total rule count */ 2376 cmd->data = i40e_get_fd_cnt_all(pf); 2377 ret = 0; 2378 break; 2379 case ETHTOOL_GRXCLSRULE: 2380 ret = i40e_get_ethtool_fdir_entry(pf, cmd); 2381 break; 2382 case ETHTOOL_GRXCLSRLALL: 2383 ret = i40e_get_ethtool_fdir_all(pf, cmd, rule_locs); 2384 break; 2385 default: 2386 break; 2387 } 2388 2389 return ret; 2390 } 2391 2392 /** 2393 * i40e_get_rss_hash_bits - Read RSS Hash bits from register 2394 * @nfc: pointer to user request 2395 * @i_setc bits currently set 2396 * 2397 * Returns value of bits to be set per user request 2398 **/ 2399 static u64 i40e_get_rss_hash_bits(struct ethtool_rxnfc *nfc, u64 i_setc) 2400 { 2401 u64 i_set = i_setc; 2402 u64 src_l3 = 0, dst_l3 = 0; 2403 2404 if (nfc->data & RXH_L4_B_0_1) 2405 i_set |= I40E_L4_SRC_MASK; 2406 else 2407 i_set &= ~I40E_L4_SRC_MASK; 2408 if (nfc->data & RXH_L4_B_2_3) 2409 i_set |= I40E_L4_DST_MASK; 2410 else 2411 i_set &= ~I40E_L4_DST_MASK; 2412 2413 if (nfc->flow_type == TCP_V6_FLOW || nfc->flow_type == UDP_V6_FLOW) { 2414 src_l3 = I40E_L3_V6_SRC_MASK; 2415 dst_l3 = I40E_L3_V6_DST_MASK; 2416 } else if (nfc->flow_type == TCP_V4_FLOW || 2417 nfc->flow_type == UDP_V4_FLOW) { 2418 src_l3 = I40E_L3_SRC_MASK; 2419 dst_l3 = I40E_L3_DST_MASK; 2420 } else { 2421 /* Any other flow type are not supported here */ 2422 return i_set; 2423 } 2424 2425 if (nfc->data & RXH_IP_SRC) 2426 i_set |= src_l3; 2427 else 2428 i_set &= ~src_l3; 2429 if (nfc->data & RXH_IP_DST) 2430 i_set |= dst_l3; 2431 else 2432 i_set &= ~dst_l3; 2433 2434 return i_set; 2435 } 2436 2437 /** 2438 * i40e_set_rss_hash_opt - Enable/Disable flow types for RSS hash 2439 * @pf: pointer to the physical function struct 2440 * @cmd: ethtool rxnfc command 2441 * 2442 * Returns Success if the flow input set is supported. 2443 **/ 2444 static int i40e_set_rss_hash_opt(struct i40e_pf *pf, struct ethtool_rxnfc *nfc) 2445 { 2446 struct i40e_hw *hw = &pf->hw; 2447 u64 hena = (u64)i40e_read_rx_ctl(hw, I40E_PFQF_HENA(0)) | 2448 ((u64)i40e_read_rx_ctl(hw, I40E_PFQF_HENA(1)) << 32); 2449 u8 flow_pctype = 0; 2450 u64 i_set, i_setc; 2451 2452 /* RSS does not support anything other than hashing 2453 * to queues on src and dst IPs and ports 2454 */ 2455 if (nfc->data & ~(RXH_IP_SRC | RXH_IP_DST | 2456 RXH_L4_B_0_1 | RXH_L4_B_2_3)) 2457 return -EINVAL; 2458 2459 switch (nfc->flow_type) { 2460 case TCP_V4_FLOW: 2461 flow_pctype = I40E_FILTER_PCTYPE_NONF_IPV4_TCP; 2462 if (pf->flags & I40E_FLAG_MULTIPLE_TCP_UDP_RSS_PCTYPE) 2463 hena |= 2464 BIT_ULL(I40E_FILTER_PCTYPE_NONF_IPV4_TCP_SYN_NO_ACK); 2465 break; 2466 case TCP_V6_FLOW: 2467 flow_pctype = I40E_FILTER_PCTYPE_NONF_IPV6_TCP; 2468 if (pf->flags & I40E_FLAG_MULTIPLE_TCP_UDP_RSS_PCTYPE) 2469 hena |= 2470 BIT_ULL(I40E_FILTER_PCTYPE_NONF_IPV4_TCP_SYN_NO_ACK); 2471 if (pf->flags & I40E_FLAG_MULTIPLE_TCP_UDP_RSS_PCTYPE) 2472 hena |= 2473 BIT_ULL(I40E_FILTER_PCTYPE_NONF_IPV6_TCP_SYN_NO_ACK); 2474 break; 2475 case UDP_V4_FLOW: 2476 flow_pctype = I40E_FILTER_PCTYPE_NONF_IPV4_UDP; 2477 if (pf->flags & I40E_FLAG_MULTIPLE_TCP_UDP_RSS_PCTYPE) 2478 hena |= 2479 BIT_ULL(I40E_FILTER_PCTYPE_NONF_UNICAST_IPV4_UDP) | 2480 BIT_ULL(I40E_FILTER_PCTYPE_NONF_MULTICAST_IPV4_UDP); 2481 2482 hena |= BIT_ULL(I40E_FILTER_PCTYPE_FRAG_IPV4); 2483 break; 2484 case UDP_V6_FLOW: 2485 flow_pctype = I40E_FILTER_PCTYPE_NONF_IPV6_UDP; 2486 if (pf->flags & I40E_FLAG_MULTIPLE_TCP_UDP_RSS_PCTYPE) 2487 hena |= 2488 BIT_ULL(I40E_FILTER_PCTYPE_NONF_UNICAST_IPV6_UDP) | 2489 BIT_ULL(I40E_FILTER_PCTYPE_NONF_MULTICAST_IPV6_UDP); 2490 2491 hena |= BIT_ULL(I40E_FILTER_PCTYPE_FRAG_IPV6); 2492 break; 2493 case AH_ESP_V4_FLOW: 2494 case AH_V4_FLOW: 2495 case ESP_V4_FLOW: 2496 case SCTP_V4_FLOW: 2497 if ((nfc->data & RXH_L4_B_0_1) || 2498 (nfc->data & RXH_L4_B_2_3)) 2499 return -EINVAL; 2500 hena |= BIT_ULL(I40E_FILTER_PCTYPE_NONF_IPV4_OTHER); 2501 break; 2502 case AH_ESP_V6_FLOW: 2503 case AH_V6_FLOW: 2504 case ESP_V6_FLOW: 2505 case SCTP_V6_FLOW: 2506 if ((nfc->data & RXH_L4_B_0_1) || 2507 (nfc->data & RXH_L4_B_2_3)) 2508 return -EINVAL; 2509 hena |= BIT_ULL(I40E_FILTER_PCTYPE_NONF_IPV6_OTHER); 2510 break; 2511 case IPV4_FLOW: 2512 hena |= BIT_ULL(I40E_FILTER_PCTYPE_NONF_IPV4_OTHER) | 2513 BIT_ULL(I40E_FILTER_PCTYPE_FRAG_IPV4); 2514 break; 2515 case IPV6_FLOW: 2516 hena |= BIT_ULL(I40E_FILTER_PCTYPE_NONF_IPV6_OTHER) | 2517 BIT_ULL(I40E_FILTER_PCTYPE_FRAG_IPV6); 2518 break; 2519 default: 2520 return -EINVAL; 2521 } 2522 2523 if (flow_pctype) { 2524 i_setc = (u64)i40e_read_rx_ctl(hw, I40E_GLQF_HASH_INSET(0, 2525 flow_pctype)) | 2526 ((u64)i40e_read_rx_ctl(hw, I40E_GLQF_HASH_INSET(1, 2527 flow_pctype)) << 32); 2528 i_set = i40e_get_rss_hash_bits(nfc, i_setc); 2529 i40e_write_rx_ctl(hw, I40E_GLQF_HASH_INSET(0, flow_pctype), 2530 (u32)i_set); 2531 i40e_write_rx_ctl(hw, I40E_GLQF_HASH_INSET(1, flow_pctype), 2532 (u32)(i_set >> 32)); 2533 hena |= BIT_ULL(flow_pctype); 2534 } 2535 2536 i40e_write_rx_ctl(hw, I40E_PFQF_HENA(0), (u32)hena); 2537 i40e_write_rx_ctl(hw, I40E_PFQF_HENA(1), (u32)(hena >> 32)); 2538 i40e_flush(hw); 2539 2540 return 0; 2541 } 2542 2543 /** 2544 * i40e_match_fdir_input_set - Match a new filter against an existing one 2545 * @rule: The filter already added 2546 * @input: The new filter to comapre against 2547 * 2548 * Returns true if the two input set match 2549 **/ 2550 static bool i40e_match_fdir_input_set(struct i40e_fdir_filter *rule, 2551 struct i40e_fdir_filter *input) 2552 { 2553 if ((rule->dst_ip[0] != input->dst_ip[0]) || 2554 (rule->src_ip[0] != input->src_ip[0]) || 2555 (rule->dst_port != input->dst_port) || 2556 (rule->src_port != input->src_port)) 2557 return false; 2558 return true; 2559 } 2560 2561 /** 2562 * i40e_update_ethtool_fdir_entry - Updates the fdir filter entry 2563 * @vsi: Pointer to the targeted VSI 2564 * @input: The filter to update or NULL to indicate deletion 2565 * @sw_idx: Software index to the filter 2566 * @cmd: The command to get or set Rx flow classification rules 2567 * 2568 * This function updates (or deletes) a Flow Director entry from 2569 * the hlist of the corresponding PF 2570 * 2571 * Returns 0 on success 2572 **/ 2573 static int i40e_update_ethtool_fdir_entry(struct i40e_vsi *vsi, 2574 struct i40e_fdir_filter *input, 2575 u16 sw_idx, 2576 struct ethtool_rxnfc *cmd) 2577 { 2578 struct i40e_fdir_filter *rule, *parent; 2579 struct i40e_pf *pf = vsi->back; 2580 struct hlist_node *node2; 2581 int err = -EINVAL; 2582 2583 parent = NULL; 2584 rule = NULL; 2585 2586 hlist_for_each_entry_safe(rule, node2, 2587 &pf->fdir_filter_list, fdir_node) { 2588 /* hash found, or no matching entry */ 2589 if (rule->fd_id >= sw_idx) 2590 break; 2591 parent = rule; 2592 } 2593 2594 /* if there is an old rule occupying our place remove it */ 2595 if (rule && (rule->fd_id == sw_idx)) { 2596 if (input && !i40e_match_fdir_input_set(rule, input)) 2597 err = i40e_add_del_fdir(vsi, rule, false); 2598 else if (!input) 2599 err = i40e_add_del_fdir(vsi, rule, false); 2600 hlist_del(&rule->fdir_node); 2601 kfree(rule); 2602 pf->fdir_pf_active_filters--; 2603 } 2604 2605 /* If no input this was a delete, err should be 0 if a rule was 2606 * successfully found and removed from the list else -EINVAL 2607 */ 2608 if (!input) 2609 return err; 2610 2611 /* initialize node and set software index */ 2612 INIT_HLIST_NODE(&input->fdir_node); 2613 2614 /* add filter to the list */ 2615 if (parent) 2616 hlist_add_behind(&input->fdir_node, &parent->fdir_node); 2617 else 2618 hlist_add_head(&input->fdir_node, 2619 &pf->fdir_filter_list); 2620 2621 /* update counts */ 2622 pf->fdir_pf_active_filters++; 2623 2624 return 0; 2625 } 2626 2627 /** 2628 * i40e_del_fdir_entry - Deletes a Flow Director filter entry 2629 * @vsi: Pointer to the targeted VSI 2630 * @cmd: The command to get or set Rx flow classification rules 2631 * 2632 * The function removes a Flow Director filter entry from the 2633 * hlist of the corresponding PF 2634 * 2635 * Returns 0 on success 2636 */ 2637 static int i40e_del_fdir_entry(struct i40e_vsi *vsi, 2638 struct ethtool_rxnfc *cmd) 2639 { 2640 struct ethtool_rx_flow_spec *fsp = 2641 (struct ethtool_rx_flow_spec *)&cmd->fs; 2642 struct i40e_pf *pf = vsi->back; 2643 int ret = 0; 2644 2645 if (test_bit(__I40E_RESET_RECOVERY_PENDING, &pf->state) || 2646 test_bit(__I40E_RESET_INTR_RECEIVED, &pf->state)) 2647 return -EBUSY; 2648 2649 if (test_bit(__I40E_FD_FLUSH_REQUESTED, &pf->state)) 2650 return -EBUSY; 2651 2652 ret = i40e_update_ethtool_fdir_entry(vsi, NULL, fsp->location, cmd); 2653 2654 i40e_fdir_check_and_reenable(pf); 2655 return ret; 2656 } 2657 2658 /** 2659 * i40e_add_fdir_ethtool - Add/Remove Flow Director filters 2660 * @vsi: pointer to the targeted VSI 2661 * @cmd: command to get or set RX flow classification rules 2662 * 2663 * Add Flow Director filters for a specific flow spec based on their 2664 * protocol. Returns 0 if the filters were successfully added. 2665 **/ 2666 static int i40e_add_fdir_ethtool(struct i40e_vsi *vsi, 2667 struct ethtool_rxnfc *cmd) 2668 { 2669 struct ethtool_rx_flow_spec *fsp; 2670 struct i40e_fdir_filter *input; 2671 struct i40e_pf *pf; 2672 int ret = -EINVAL; 2673 u16 vf_id; 2674 2675 if (!vsi) 2676 return -EINVAL; 2677 pf = vsi->back; 2678 2679 if (!(pf->flags & I40E_FLAG_FD_SB_ENABLED)) 2680 return -EOPNOTSUPP; 2681 2682 if (pf->auto_disable_flags & I40E_FLAG_FD_SB_ENABLED) 2683 return -ENOSPC; 2684 2685 if (test_bit(__I40E_RESET_RECOVERY_PENDING, &pf->state) || 2686 test_bit(__I40E_RESET_INTR_RECEIVED, &pf->state)) 2687 return -EBUSY; 2688 2689 if (test_bit(__I40E_FD_FLUSH_REQUESTED, &pf->state)) 2690 return -EBUSY; 2691 2692 fsp = (struct ethtool_rx_flow_spec *)&cmd->fs; 2693 2694 if (fsp->location >= (pf->hw.func_caps.fd_filters_best_effort + 2695 pf->hw.func_caps.fd_filters_guaranteed)) { 2696 return -EINVAL; 2697 } 2698 2699 if ((fsp->ring_cookie != RX_CLS_FLOW_DISC) && 2700 (fsp->ring_cookie >= vsi->num_queue_pairs)) 2701 return -EINVAL; 2702 2703 input = kzalloc(sizeof(*input), GFP_KERNEL); 2704 2705 if (!input) 2706 return -ENOMEM; 2707 2708 input->fd_id = fsp->location; 2709 2710 if (fsp->ring_cookie == RX_CLS_FLOW_DISC) 2711 input->dest_ctl = I40E_FILTER_PROGRAM_DESC_DEST_DROP_PACKET; 2712 else 2713 input->dest_ctl = 2714 I40E_FILTER_PROGRAM_DESC_DEST_DIRECT_PACKET_QINDEX; 2715 2716 input->q_index = fsp->ring_cookie; 2717 input->flex_off = 0; 2718 input->pctype = 0; 2719 input->dest_vsi = vsi->id; 2720 input->fd_status = I40E_FILTER_PROGRAM_DESC_FD_STATUS_FD_ID; 2721 input->cnt_index = I40E_FD_SB_STAT_IDX(pf->hw.pf_id); 2722 input->flow_type = fsp->flow_type; 2723 input->ip4_proto = fsp->h_u.usr_ip4_spec.proto; 2724 2725 /* Reverse the src and dest notion, since the HW expects them to be from 2726 * Tx perspective where as the input from user is from Rx filter view. 2727 */ 2728 input->dst_port = fsp->h_u.tcp_ip4_spec.psrc; 2729 input->src_port = fsp->h_u.tcp_ip4_spec.pdst; 2730 input->dst_ip[0] = fsp->h_u.tcp_ip4_spec.ip4src; 2731 input->src_ip[0] = fsp->h_u.tcp_ip4_spec.ip4dst; 2732 2733 if (ntohl(fsp->m_ext.data[1])) { 2734 vf_id = ntohl(fsp->h_ext.data[1]); 2735 if (vf_id >= pf->num_alloc_vfs) { 2736 netif_info(pf, drv, vsi->netdev, 2737 "Invalid VF id %d\n", vf_id); 2738 goto free_input; 2739 } 2740 /* Find vsi id from vf id and override dest vsi */ 2741 input->dest_vsi = pf->vf[vf_id].lan_vsi_id; 2742 if (input->q_index >= pf->vf[vf_id].num_queue_pairs) { 2743 netif_info(pf, drv, vsi->netdev, 2744 "Invalid queue id %d for VF %d\n", 2745 input->q_index, vf_id); 2746 goto free_input; 2747 } 2748 } 2749 2750 ret = i40e_add_del_fdir(vsi, input, true); 2751 free_input: 2752 if (ret) 2753 kfree(input); 2754 else 2755 i40e_update_ethtool_fdir_entry(vsi, input, fsp->location, NULL); 2756 2757 return ret; 2758 } 2759 2760 /** 2761 * i40e_set_rxnfc - command to set RX flow classification rules 2762 * @netdev: network interface device structure 2763 * @cmd: ethtool rxnfc command 2764 * 2765 * Returns Success if the command is supported. 2766 **/ 2767 static int i40e_set_rxnfc(struct net_device *netdev, struct ethtool_rxnfc *cmd) 2768 { 2769 struct i40e_netdev_priv *np = netdev_priv(netdev); 2770 struct i40e_vsi *vsi = np->vsi; 2771 struct i40e_pf *pf = vsi->back; 2772 int ret = -EOPNOTSUPP; 2773 2774 switch (cmd->cmd) { 2775 case ETHTOOL_SRXFH: 2776 ret = i40e_set_rss_hash_opt(pf, cmd); 2777 break; 2778 case ETHTOOL_SRXCLSRLINS: 2779 ret = i40e_add_fdir_ethtool(vsi, cmd); 2780 break; 2781 case ETHTOOL_SRXCLSRLDEL: 2782 ret = i40e_del_fdir_entry(vsi, cmd); 2783 break; 2784 default: 2785 break; 2786 } 2787 2788 return ret; 2789 } 2790 2791 /** 2792 * i40e_max_channels - get Max number of combined channels supported 2793 * @vsi: vsi pointer 2794 **/ 2795 static unsigned int i40e_max_channels(struct i40e_vsi *vsi) 2796 { 2797 /* TODO: This code assumes DCB and FD is disabled for now. */ 2798 return vsi->alloc_queue_pairs; 2799 } 2800 2801 /** 2802 * i40e_get_channels - Get the current channels enabled and max supported etc. 2803 * @netdev: network interface device structure 2804 * @ch: ethtool channels structure 2805 * 2806 * We don't support separate tx and rx queues as channels. The other count 2807 * represents how many queues are being used for control. max_combined counts 2808 * how many queue pairs we can support. They may not be mapped 1 to 1 with 2809 * q_vectors since we support a lot more queue pairs than q_vectors. 2810 **/ 2811 static void i40e_get_channels(struct net_device *dev, 2812 struct ethtool_channels *ch) 2813 { 2814 struct i40e_netdev_priv *np = netdev_priv(dev); 2815 struct i40e_vsi *vsi = np->vsi; 2816 struct i40e_pf *pf = vsi->back; 2817 2818 /* report maximum channels */ 2819 ch->max_combined = i40e_max_channels(vsi); 2820 2821 /* report info for other vector */ 2822 ch->other_count = (pf->flags & I40E_FLAG_FD_SB_ENABLED) ? 1 : 0; 2823 ch->max_other = ch->other_count; 2824 2825 /* Note: This code assumes DCB is disabled for now. */ 2826 ch->combined_count = vsi->num_queue_pairs; 2827 } 2828 2829 /** 2830 * i40e_set_channels - Set the new channels count. 2831 * @netdev: network interface device structure 2832 * @ch: ethtool channels structure 2833 * 2834 * The new channels count may not be the same as requested by the user 2835 * since it gets rounded down to a power of 2 value. 2836 **/ 2837 static int i40e_set_channels(struct net_device *dev, 2838 struct ethtool_channels *ch) 2839 { 2840 const u8 drop = I40E_FILTER_PROGRAM_DESC_DEST_DROP_PACKET; 2841 struct i40e_netdev_priv *np = netdev_priv(dev); 2842 unsigned int count = ch->combined_count; 2843 struct i40e_vsi *vsi = np->vsi; 2844 struct i40e_pf *pf = vsi->back; 2845 struct i40e_fdir_filter *rule; 2846 struct hlist_node *node2; 2847 int new_count; 2848 int err = 0; 2849 2850 /* We do not support setting channels for any other VSI at present */ 2851 if (vsi->type != I40E_VSI_MAIN) 2852 return -EINVAL; 2853 2854 /* verify they are not requesting separate vectors */ 2855 if (!count || ch->rx_count || ch->tx_count) 2856 return -EINVAL; 2857 2858 /* verify other_count has not changed */ 2859 if (ch->other_count != ((pf->flags & I40E_FLAG_FD_SB_ENABLED) ? 1 : 0)) 2860 return -EINVAL; 2861 2862 /* verify the number of channels does not exceed hardware limits */ 2863 if (count > i40e_max_channels(vsi)) 2864 return -EINVAL; 2865 2866 /* verify that the number of channels does not invalidate any current 2867 * flow director rules 2868 */ 2869 hlist_for_each_entry_safe(rule, node2, 2870 &pf->fdir_filter_list, fdir_node) { 2871 if (rule->dest_ctl != drop && count <= rule->q_index) { 2872 dev_warn(&pf->pdev->dev, 2873 "Existing user defined filter %d assigns flow to queue %d\n", 2874 rule->fd_id, rule->q_index); 2875 err = -EINVAL; 2876 } 2877 } 2878 2879 if (err) { 2880 dev_err(&pf->pdev->dev, 2881 "Existing filter rules must be deleted to reduce combined channel count to %d\n", 2882 count); 2883 return err; 2884 } 2885 2886 /* update feature limits from largest to smallest supported values */ 2887 /* TODO: Flow director limit, DCB etc */ 2888 2889 /* use rss_reconfig to rebuild with new queue count and update traffic 2890 * class queue mapping 2891 */ 2892 new_count = i40e_reconfig_rss_queues(pf, count); 2893 if (new_count > 0) 2894 return 0; 2895 else 2896 return -EINVAL; 2897 } 2898 2899 /** 2900 * i40e_get_rxfh_key_size - get the RSS hash key size 2901 * @netdev: network interface device structure 2902 * 2903 * Returns the table size. 2904 **/ 2905 static u32 i40e_get_rxfh_key_size(struct net_device *netdev) 2906 { 2907 return I40E_HKEY_ARRAY_SIZE; 2908 } 2909 2910 /** 2911 * i40e_get_rxfh_indir_size - get the rx flow hash indirection table size 2912 * @netdev: network interface device structure 2913 * 2914 * Returns the table size. 2915 **/ 2916 static u32 i40e_get_rxfh_indir_size(struct net_device *netdev) 2917 { 2918 return I40E_HLUT_ARRAY_SIZE; 2919 } 2920 2921 static int i40e_get_rxfh(struct net_device *netdev, u32 *indir, u8 *key, 2922 u8 *hfunc) 2923 { 2924 struct i40e_netdev_priv *np = netdev_priv(netdev); 2925 struct i40e_vsi *vsi = np->vsi; 2926 u8 *lut, *seed = NULL; 2927 int ret; 2928 u16 i; 2929 2930 if (hfunc) 2931 *hfunc = ETH_RSS_HASH_TOP; 2932 2933 if (!indir) 2934 return 0; 2935 2936 seed = key; 2937 lut = kzalloc(I40E_HLUT_ARRAY_SIZE, GFP_KERNEL); 2938 if (!lut) 2939 return -ENOMEM; 2940 ret = i40e_get_rss(vsi, seed, lut, I40E_HLUT_ARRAY_SIZE); 2941 if (ret) 2942 goto out; 2943 for (i = 0; i < I40E_HLUT_ARRAY_SIZE; i++) 2944 indir[i] = (u32)(lut[i]); 2945 2946 out: 2947 kfree(lut); 2948 2949 return ret; 2950 } 2951 2952 /** 2953 * i40e_set_rxfh - set the rx flow hash indirection table 2954 * @netdev: network interface device structure 2955 * @indir: indirection table 2956 * @key: hash key 2957 * 2958 * Returns -EINVAL if the table specifies an invalid queue id, otherwise 2959 * returns 0 after programming the table. 2960 **/ 2961 static int i40e_set_rxfh(struct net_device *netdev, const u32 *indir, 2962 const u8 *key, const u8 hfunc) 2963 { 2964 struct i40e_netdev_priv *np = netdev_priv(netdev); 2965 struct i40e_vsi *vsi = np->vsi; 2966 struct i40e_pf *pf = vsi->back; 2967 u8 *seed = NULL; 2968 u16 i; 2969 2970 if (hfunc != ETH_RSS_HASH_NO_CHANGE && hfunc != ETH_RSS_HASH_TOP) 2971 return -EOPNOTSUPP; 2972 2973 if (key) { 2974 if (!vsi->rss_hkey_user) { 2975 vsi->rss_hkey_user = kzalloc(I40E_HKEY_ARRAY_SIZE, 2976 GFP_KERNEL); 2977 if (!vsi->rss_hkey_user) 2978 return -ENOMEM; 2979 } 2980 memcpy(vsi->rss_hkey_user, key, I40E_HKEY_ARRAY_SIZE); 2981 seed = vsi->rss_hkey_user; 2982 } 2983 if (!vsi->rss_lut_user) { 2984 vsi->rss_lut_user = kzalloc(I40E_HLUT_ARRAY_SIZE, GFP_KERNEL); 2985 if (!vsi->rss_lut_user) 2986 return -ENOMEM; 2987 } 2988 2989 /* Each 32 bits pointed by 'indir' is stored with a lut entry */ 2990 if (indir) 2991 for (i = 0; i < I40E_HLUT_ARRAY_SIZE; i++) 2992 vsi->rss_lut_user[i] = (u8)(indir[i]); 2993 else 2994 i40e_fill_rss_lut(pf, vsi->rss_lut_user, I40E_HLUT_ARRAY_SIZE, 2995 vsi->rss_size); 2996 2997 return i40e_config_rss(vsi, seed, vsi->rss_lut_user, 2998 I40E_HLUT_ARRAY_SIZE); 2999 } 3000 3001 /** 3002 * i40e_get_priv_flags - report device private flags 3003 * @dev: network interface device structure 3004 * 3005 * The get string set count and the string set should be matched for each 3006 * flag returned. Add new strings for each flag to the i40e_priv_flags_strings 3007 * array. 3008 * 3009 * Returns a u32 bitmap of flags. 3010 **/ 3011 static u32 i40e_get_priv_flags(struct net_device *dev) 3012 { 3013 struct i40e_netdev_priv *np = netdev_priv(dev); 3014 struct i40e_vsi *vsi = np->vsi; 3015 struct i40e_pf *pf = vsi->back; 3016 u32 ret_flags = 0; 3017 3018 ret_flags |= pf->flags & I40E_FLAG_LINK_POLLING_ENABLED ? 3019 I40E_PRIV_FLAGS_LINKPOLL_FLAG : 0; 3020 ret_flags |= pf->flags & I40E_FLAG_FD_ATR_ENABLED ? 3021 I40E_PRIV_FLAGS_FD_ATR : 0; 3022 ret_flags |= pf->flags & I40E_FLAG_VEB_STATS_ENABLED ? 3023 I40E_PRIV_FLAGS_VEB_STATS : 0; 3024 ret_flags |= pf->auto_disable_flags & I40E_FLAG_HW_ATR_EVICT_CAPABLE ? 3025 0 : I40E_PRIV_FLAGS_HW_ATR_EVICT; 3026 if (pf->hw.pf_id == 0) { 3027 ret_flags |= pf->flags & I40E_FLAG_TRUE_PROMISC_SUPPORT ? 3028 I40E_PRIV_FLAGS_TRUE_PROMISC_SUPPORT : 0; 3029 } 3030 3031 return ret_flags; 3032 } 3033 3034 /** 3035 * i40e_set_priv_flags - set private flags 3036 * @dev: network interface device structure 3037 * @flags: bit flags to be set 3038 **/ 3039 static int i40e_set_priv_flags(struct net_device *dev, u32 flags) 3040 { 3041 struct i40e_netdev_priv *np = netdev_priv(dev); 3042 struct i40e_vsi *vsi = np->vsi; 3043 struct i40e_pf *pf = vsi->back; 3044 u16 sw_flags = 0, valid_flags = 0; 3045 bool reset_required = false; 3046 bool promisc_change = false; 3047 int ret; 3048 3049 /* NOTE: MFP is not settable */ 3050 3051 if (flags & I40E_PRIV_FLAGS_LINKPOLL_FLAG) 3052 pf->flags |= I40E_FLAG_LINK_POLLING_ENABLED; 3053 else 3054 pf->flags &= ~I40E_FLAG_LINK_POLLING_ENABLED; 3055 3056 /* allow the user to control the state of the Flow 3057 * Director ATR (Application Targeted Routing) feature 3058 * of the driver 3059 */ 3060 if (flags & I40E_PRIV_FLAGS_FD_ATR) { 3061 pf->flags |= I40E_FLAG_FD_ATR_ENABLED; 3062 } else { 3063 pf->flags &= ~I40E_FLAG_FD_ATR_ENABLED; 3064 pf->auto_disable_flags |= I40E_FLAG_FD_ATR_ENABLED; 3065 3066 /* flush current ATR settings */ 3067 set_bit(__I40E_FD_FLUSH_REQUESTED, &pf->state); 3068 } 3069 3070 if ((flags & I40E_PRIV_FLAGS_VEB_STATS) && 3071 !(pf->flags & I40E_FLAG_VEB_STATS_ENABLED)) { 3072 pf->flags |= I40E_FLAG_VEB_STATS_ENABLED; 3073 reset_required = true; 3074 } else if (!(flags & I40E_PRIV_FLAGS_VEB_STATS) && 3075 (pf->flags & I40E_FLAG_VEB_STATS_ENABLED)) { 3076 pf->flags &= ~I40E_FLAG_VEB_STATS_ENABLED; 3077 reset_required = true; 3078 } 3079 3080 if (pf->hw.pf_id == 0) { 3081 if ((flags & I40E_PRIV_FLAGS_TRUE_PROMISC_SUPPORT) && 3082 !(pf->flags & I40E_FLAG_TRUE_PROMISC_SUPPORT)) { 3083 pf->flags |= I40E_FLAG_TRUE_PROMISC_SUPPORT; 3084 promisc_change = true; 3085 } else if (!(flags & I40E_PRIV_FLAGS_TRUE_PROMISC_SUPPORT) && 3086 (pf->flags & I40E_FLAG_TRUE_PROMISC_SUPPORT)) { 3087 pf->flags &= ~I40E_FLAG_TRUE_PROMISC_SUPPORT; 3088 promisc_change = true; 3089 } 3090 } 3091 if (promisc_change) { 3092 if (!(pf->flags & I40E_FLAG_TRUE_PROMISC_SUPPORT)) 3093 sw_flags = I40E_AQ_SET_SWITCH_CFG_PROMISC; 3094 valid_flags = I40E_AQ_SET_SWITCH_CFG_PROMISC; 3095 ret = i40e_aq_set_switch_config(&pf->hw, sw_flags, valid_flags, 3096 NULL); 3097 if (ret && pf->hw.aq.asq_last_status != I40E_AQ_RC_ESRCH) { 3098 dev_info(&pf->pdev->dev, 3099 "couldn't set switch config bits, err %s aq_err %s\n", 3100 i40e_stat_str(&pf->hw, ret), 3101 i40e_aq_str(&pf->hw, 3102 pf->hw.aq.asq_last_status)); 3103 /* not a fatal problem, just keep going */ 3104 } 3105 } 3106 3107 if ((flags & I40E_PRIV_FLAGS_HW_ATR_EVICT) && 3108 (pf->flags & I40E_FLAG_HW_ATR_EVICT_CAPABLE)) 3109 pf->auto_disable_flags &= ~I40E_FLAG_HW_ATR_EVICT_CAPABLE; 3110 else 3111 pf->auto_disable_flags |= I40E_FLAG_HW_ATR_EVICT_CAPABLE; 3112 3113 /* if needed, issue reset to cause things to take effect */ 3114 if (reset_required) 3115 i40e_do_reset(pf, BIT(__I40E_PF_RESET_REQUESTED)); 3116 3117 return 0; 3118 } 3119 3120 static const struct ethtool_ops i40e_ethtool_ops = { 3121 .get_settings = i40e_get_settings, 3122 .set_settings = i40e_set_settings, 3123 .get_drvinfo = i40e_get_drvinfo, 3124 .get_regs_len = i40e_get_regs_len, 3125 .get_regs = i40e_get_regs, 3126 .nway_reset = i40e_nway_reset, 3127 .get_link = ethtool_op_get_link, 3128 .get_wol = i40e_get_wol, 3129 .set_wol = i40e_set_wol, 3130 .set_eeprom = i40e_set_eeprom, 3131 .get_eeprom_len = i40e_get_eeprom_len, 3132 .get_eeprom = i40e_get_eeprom, 3133 .get_ringparam = i40e_get_ringparam, 3134 .set_ringparam = i40e_set_ringparam, 3135 .get_pauseparam = i40e_get_pauseparam, 3136 .set_pauseparam = i40e_set_pauseparam, 3137 .get_msglevel = i40e_get_msglevel, 3138 .set_msglevel = i40e_set_msglevel, 3139 .get_rxnfc = i40e_get_rxnfc, 3140 .set_rxnfc = i40e_set_rxnfc, 3141 .self_test = i40e_diag_test, 3142 .get_strings = i40e_get_strings, 3143 .set_phys_id = i40e_set_phys_id, 3144 .get_sset_count = i40e_get_sset_count, 3145 .get_ethtool_stats = i40e_get_ethtool_stats, 3146 .get_coalesce = i40e_get_coalesce, 3147 .set_coalesce = i40e_set_coalesce, 3148 .get_rxfh_key_size = i40e_get_rxfh_key_size, 3149 .get_rxfh_indir_size = i40e_get_rxfh_indir_size, 3150 .get_rxfh = i40e_get_rxfh, 3151 .set_rxfh = i40e_set_rxfh, 3152 .get_channels = i40e_get_channels, 3153 .set_channels = i40e_set_channels, 3154 .get_ts_info = i40e_get_ts_info, 3155 .get_priv_flags = i40e_get_priv_flags, 3156 .set_priv_flags = i40e_set_priv_flags, 3157 .get_per_queue_coalesce = i40e_get_per_queue_coalesce, 3158 .set_per_queue_coalesce = i40e_set_per_queue_coalesce, 3159 }; 3160 3161 void i40e_set_ethtool_ops(struct net_device *netdev) 3162 { 3163 netdev->ethtool_ops = &i40e_ethtool_ops; 3164 } 3165