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 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_LOOPBACK, 220 I40E_ETH_TEST_LINK, 221 }; 222 223 static const char i40e_gstrings_test[][ETH_GSTRING_LEN] = { 224 "Register test (offline)", 225 "Eeprom test (offline)", 226 "Interrupt test (offline)", 227 "Loopback test (offline)", 228 "Link test (on/offline)" 229 }; 230 231 #define I40E_TEST_LEN (sizeof(i40e_gstrings_test) / ETH_GSTRING_LEN) 232 233 static const char i40e_priv_flags_strings_gl[][ETH_GSTRING_LEN] = { 234 "MFP", 235 "LinkPolling", 236 "flow-director-atr", 237 "veb-stats", 238 "hw-atr-eviction", 239 "vf-true-promisc-support", 240 }; 241 242 #define I40E_PRIV_FLAGS_GL_STR_LEN ARRAY_SIZE(i40e_priv_flags_strings_gl) 243 244 static const char i40e_priv_flags_strings[][ETH_GSTRING_LEN] = { 245 "NPAR", 246 "LinkPolling", 247 "flow-director-atr", 248 "veb-stats", 249 "hw-atr-eviction", 250 }; 251 252 #define I40E_PRIV_FLAGS_STR_LEN ARRAY_SIZE(i40e_priv_flags_strings) 253 254 /** 255 * i40e_partition_setting_complaint - generic complaint for MFP restriction 256 * @pf: the PF struct 257 **/ 258 static void i40e_partition_setting_complaint(struct i40e_pf *pf) 259 { 260 dev_info(&pf->pdev->dev, 261 "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"); 262 } 263 264 /** 265 * i40e_phy_type_to_ethtool - convert the phy_types to ethtool link modes 266 * @phy_types: PHY types to convert 267 * @supported: pointer to the ethtool supported variable to fill in 268 * @advertising: pointer to the ethtool advertising variable to fill in 269 * 270 **/ 271 static void i40e_phy_type_to_ethtool(struct i40e_pf *pf, u32 *supported, 272 u32 *advertising) 273 { 274 enum i40e_aq_capabilities_phy_type phy_types = pf->hw.phy.phy_types; 275 struct i40e_link_status *hw_link_info = &pf->hw.phy.link_info; 276 *supported = 0x0; 277 *advertising = 0x0; 278 279 if (phy_types & I40E_CAP_PHY_TYPE_SGMII) { 280 *supported |= SUPPORTED_Autoneg | 281 SUPPORTED_1000baseT_Full; 282 *advertising |= ADVERTISED_Autoneg; 283 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_1GB) 284 *advertising |= ADVERTISED_1000baseT_Full; 285 if (pf->flags & I40E_FLAG_100M_SGMII_CAPABLE) { 286 *supported |= SUPPORTED_100baseT_Full; 287 *advertising |= ADVERTISED_100baseT_Full; 288 } 289 } 290 if (phy_types & I40E_CAP_PHY_TYPE_XAUI || 291 phy_types & I40E_CAP_PHY_TYPE_XFI || 292 phy_types & I40E_CAP_PHY_TYPE_SFI || 293 phy_types & I40E_CAP_PHY_TYPE_10GBASE_SFPP_CU || 294 phy_types & I40E_CAP_PHY_TYPE_10GBASE_AOC) 295 *supported |= SUPPORTED_10000baseT_Full; 296 if (phy_types & I40E_CAP_PHY_TYPE_10GBASE_CR1_CU || 297 phy_types & I40E_CAP_PHY_TYPE_10GBASE_CR1 || 298 phy_types & I40E_CAP_PHY_TYPE_10GBASE_T || 299 phy_types & I40E_CAP_PHY_TYPE_10GBASE_SR || 300 phy_types & I40E_CAP_PHY_TYPE_10GBASE_LR) { 301 *supported |= SUPPORTED_Autoneg | 302 SUPPORTED_10000baseT_Full; 303 *advertising |= ADVERTISED_Autoneg; 304 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_10GB) 305 *advertising |= ADVERTISED_10000baseT_Full; 306 } 307 if (phy_types & I40E_CAP_PHY_TYPE_XLAUI || 308 phy_types & I40E_CAP_PHY_TYPE_XLPPI || 309 phy_types & I40E_CAP_PHY_TYPE_40GBASE_AOC) 310 *supported |= SUPPORTED_40000baseCR4_Full; 311 if (phy_types & I40E_CAP_PHY_TYPE_40GBASE_CR4_CU || 312 phy_types & I40E_CAP_PHY_TYPE_40GBASE_CR4) { 313 *supported |= SUPPORTED_Autoneg | 314 SUPPORTED_40000baseCR4_Full; 315 *advertising |= ADVERTISED_Autoneg; 316 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_40GB) 317 *advertising |= ADVERTISED_40000baseCR4_Full; 318 } 319 if (phy_types & I40E_CAP_PHY_TYPE_100BASE_TX) { 320 *supported |= SUPPORTED_Autoneg | 321 SUPPORTED_100baseT_Full; 322 *advertising |= ADVERTISED_Autoneg; 323 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_100MB) 324 *advertising |= ADVERTISED_100baseT_Full; 325 } 326 if (phy_types & I40E_CAP_PHY_TYPE_1000BASE_T || 327 phy_types & I40E_CAP_PHY_TYPE_1000BASE_SX || 328 phy_types & I40E_CAP_PHY_TYPE_1000BASE_LX || 329 phy_types & I40E_CAP_PHY_TYPE_1000BASE_T_OPTICAL) { 330 *supported |= SUPPORTED_Autoneg | 331 SUPPORTED_1000baseT_Full; 332 *advertising |= ADVERTISED_Autoneg; 333 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_1GB) 334 *advertising |= ADVERTISED_1000baseT_Full; 335 } 336 if (phy_types & I40E_CAP_PHY_TYPE_40GBASE_SR4) 337 *supported |= SUPPORTED_40000baseSR4_Full; 338 if (phy_types & I40E_CAP_PHY_TYPE_40GBASE_LR4) 339 *supported |= SUPPORTED_40000baseLR4_Full; 340 if (phy_types & I40E_CAP_PHY_TYPE_40GBASE_KR4) { 341 *supported |= SUPPORTED_40000baseKR4_Full | 342 SUPPORTED_Autoneg; 343 *advertising |= ADVERTISED_40000baseKR4_Full | 344 ADVERTISED_Autoneg; 345 } 346 if (phy_types & I40E_CAP_PHY_TYPE_20GBASE_KR2) { 347 *supported |= SUPPORTED_20000baseKR2_Full | 348 SUPPORTED_Autoneg; 349 *advertising |= ADVERTISED_Autoneg; 350 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_20GB) 351 *advertising |= ADVERTISED_20000baseKR2_Full; 352 } 353 if (phy_types & I40E_CAP_PHY_TYPE_10GBASE_KR) { 354 *supported |= SUPPORTED_10000baseKR_Full | 355 SUPPORTED_Autoneg; 356 *advertising |= ADVERTISED_Autoneg; 357 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_10GB) 358 *advertising |= ADVERTISED_10000baseKR_Full; 359 } 360 if (phy_types & I40E_CAP_PHY_TYPE_10GBASE_KX4) { 361 *supported |= SUPPORTED_10000baseKX4_Full | 362 SUPPORTED_Autoneg; 363 *advertising |= ADVERTISED_Autoneg; 364 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_10GB) 365 *advertising |= ADVERTISED_10000baseKX4_Full; 366 } 367 if (phy_types & I40E_CAP_PHY_TYPE_1000BASE_KX) { 368 *supported |= SUPPORTED_1000baseKX_Full | 369 SUPPORTED_Autoneg; 370 *advertising |= ADVERTISED_Autoneg; 371 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_1GB) 372 *advertising |= ADVERTISED_1000baseKX_Full; 373 } 374 } 375 376 /** 377 * i40e_get_settings_link_up - Get the Link settings for when link is up 378 * @hw: hw structure 379 * @ecmd: ethtool command to fill in 380 * @netdev: network interface device structure 381 * 382 **/ 383 static void i40e_get_settings_link_up(struct i40e_hw *hw, 384 struct ethtool_cmd *ecmd, 385 struct net_device *netdev, 386 struct i40e_pf *pf) 387 { 388 struct i40e_link_status *hw_link_info = &hw->phy.link_info; 389 u32 link_speed = hw_link_info->link_speed; 390 u32 e_advertising = 0x0; 391 u32 e_supported = 0x0; 392 393 /* Initialize supported and advertised settings based on phy settings */ 394 switch (hw_link_info->phy_type) { 395 case I40E_PHY_TYPE_40GBASE_CR4: 396 case I40E_PHY_TYPE_40GBASE_CR4_CU: 397 ecmd->supported = SUPPORTED_Autoneg | 398 SUPPORTED_40000baseCR4_Full; 399 ecmd->advertising = ADVERTISED_Autoneg | 400 ADVERTISED_40000baseCR4_Full; 401 break; 402 case I40E_PHY_TYPE_XLAUI: 403 case I40E_PHY_TYPE_XLPPI: 404 case I40E_PHY_TYPE_40GBASE_AOC: 405 ecmd->supported = SUPPORTED_40000baseCR4_Full; 406 break; 407 case I40E_PHY_TYPE_40GBASE_SR4: 408 ecmd->supported = SUPPORTED_40000baseSR4_Full; 409 break; 410 case I40E_PHY_TYPE_40GBASE_LR4: 411 ecmd->supported = SUPPORTED_40000baseLR4_Full; 412 break; 413 case I40E_PHY_TYPE_10GBASE_SR: 414 case I40E_PHY_TYPE_10GBASE_LR: 415 case I40E_PHY_TYPE_1000BASE_SX: 416 case I40E_PHY_TYPE_1000BASE_LX: 417 ecmd->supported = SUPPORTED_10000baseT_Full; 418 if (hw_link_info->module_type[2] & 419 I40E_MODULE_TYPE_1000BASE_SX || 420 hw_link_info->module_type[2] & 421 I40E_MODULE_TYPE_1000BASE_LX) { 422 ecmd->supported |= SUPPORTED_1000baseT_Full; 423 if (hw_link_info->requested_speeds & 424 I40E_LINK_SPEED_1GB) 425 ecmd->advertising |= ADVERTISED_1000baseT_Full; 426 } 427 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_10GB) 428 ecmd->advertising |= ADVERTISED_10000baseT_Full; 429 break; 430 case I40E_PHY_TYPE_10GBASE_T: 431 case I40E_PHY_TYPE_1000BASE_T: 432 case I40E_PHY_TYPE_100BASE_TX: 433 ecmd->supported = SUPPORTED_Autoneg | 434 SUPPORTED_10000baseT_Full | 435 SUPPORTED_1000baseT_Full | 436 SUPPORTED_100baseT_Full; 437 ecmd->advertising = ADVERTISED_Autoneg; 438 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_10GB) 439 ecmd->advertising |= ADVERTISED_10000baseT_Full; 440 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_1GB) 441 ecmd->advertising |= ADVERTISED_1000baseT_Full; 442 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_100MB) 443 ecmd->advertising |= ADVERTISED_100baseT_Full; 444 break; 445 case I40E_PHY_TYPE_1000BASE_T_OPTICAL: 446 ecmd->supported = SUPPORTED_Autoneg | 447 SUPPORTED_1000baseT_Full; 448 ecmd->advertising = ADVERTISED_Autoneg | 449 ADVERTISED_1000baseT_Full; 450 break; 451 case I40E_PHY_TYPE_10GBASE_CR1_CU: 452 case I40E_PHY_TYPE_10GBASE_CR1: 453 ecmd->supported = SUPPORTED_Autoneg | 454 SUPPORTED_10000baseT_Full; 455 ecmd->advertising = ADVERTISED_Autoneg | 456 ADVERTISED_10000baseT_Full; 457 break; 458 case I40E_PHY_TYPE_XAUI: 459 case I40E_PHY_TYPE_XFI: 460 case I40E_PHY_TYPE_SFI: 461 case I40E_PHY_TYPE_10GBASE_SFPP_CU: 462 case I40E_PHY_TYPE_10GBASE_AOC: 463 ecmd->supported = SUPPORTED_10000baseT_Full; 464 ecmd->advertising = SUPPORTED_10000baseT_Full; 465 break; 466 case I40E_PHY_TYPE_SGMII: 467 ecmd->supported = SUPPORTED_Autoneg | 468 SUPPORTED_1000baseT_Full; 469 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_1GB) 470 ecmd->advertising |= ADVERTISED_1000baseT_Full; 471 if (pf->flags & I40E_FLAG_100M_SGMII_CAPABLE) { 472 ecmd->supported |= SUPPORTED_100baseT_Full; 473 if (hw_link_info->requested_speeds & 474 I40E_LINK_SPEED_100MB) 475 ecmd->advertising |= ADVERTISED_100baseT_Full; 476 } 477 break; 478 case I40E_PHY_TYPE_40GBASE_KR4: 479 case I40E_PHY_TYPE_20GBASE_KR2: 480 case I40E_PHY_TYPE_10GBASE_KR: 481 case I40E_PHY_TYPE_10GBASE_KX4: 482 case I40E_PHY_TYPE_1000BASE_KX: 483 ecmd->supported |= SUPPORTED_40000baseKR4_Full | 484 SUPPORTED_20000baseKR2_Full | 485 SUPPORTED_10000baseKR_Full | 486 SUPPORTED_10000baseKX4_Full | 487 SUPPORTED_1000baseKX_Full | 488 SUPPORTED_Autoneg; 489 ecmd->advertising |= ADVERTISED_40000baseKR4_Full | 490 ADVERTISED_20000baseKR2_Full | 491 ADVERTISED_10000baseKR_Full | 492 ADVERTISED_10000baseKX4_Full | 493 ADVERTISED_1000baseKX_Full | 494 ADVERTISED_Autoneg; 495 break; 496 default: 497 /* if we got here and link is up something bad is afoot */ 498 netdev_info(netdev, "WARNING: Link is up but PHY type 0x%x is not recognized.\n", 499 hw_link_info->phy_type); 500 } 501 502 /* Now that we've worked out everything that could be supported by the 503 * current PHY type, get what is supported by the NVM and them to 504 * get what is truly supported 505 */ 506 i40e_phy_type_to_ethtool(pf, &e_supported, 507 &e_advertising); 508 509 ecmd->supported = ecmd->supported & e_supported; 510 ecmd->advertising = ecmd->advertising & e_advertising; 511 512 /* Set speed and duplex */ 513 switch (link_speed) { 514 case I40E_LINK_SPEED_40GB: 515 ethtool_cmd_speed_set(ecmd, SPEED_40000); 516 break; 517 case I40E_LINK_SPEED_20GB: 518 ethtool_cmd_speed_set(ecmd, SPEED_20000); 519 break; 520 case I40E_LINK_SPEED_10GB: 521 ethtool_cmd_speed_set(ecmd, SPEED_10000); 522 break; 523 case I40E_LINK_SPEED_1GB: 524 ethtool_cmd_speed_set(ecmd, SPEED_1000); 525 break; 526 case I40E_LINK_SPEED_100MB: 527 ethtool_cmd_speed_set(ecmd, SPEED_100); 528 break; 529 default: 530 break; 531 } 532 ecmd->duplex = DUPLEX_FULL; 533 } 534 535 /** 536 * i40e_get_settings_link_down - Get the Link settings for when link is down 537 * @hw: hw structure 538 * @ecmd: ethtool command to fill in 539 * 540 * Reports link settings that can be determined when link is down 541 **/ 542 static void i40e_get_settings_link_down(struct i40e_hw *hw, 543 struct ethtool_cmd *ecmd, 544 struct i40e_pf *pf) 545 { 546 /* link is down and the driver needs to fall back on 547 * supported phy types to figure out what info to display 548 */ 549 i40e_phy_type_to_ethtool(pf, &ecmd->supported, 550 &ecmd->advertising); 551 552 /* With no link speed and duplex are unknown */ 553 ethtool_cmd_speed_set(ecmd, SPEED_UNKNOWN); 554 ecmd->duplex = DUPLEX_UNKNOWN; 555 } 556 557 /** 558 * i40e_get_settings - Get Link Speed and Duplex settings 559 * @netdev: network interface device structure 560 * @ecmd: ethtool command 561 * 562 * Reports speed/duplex settings based on media_type 563 **/ 564 static int i40e_get_settings(struct net_device *netdev, 565 struct ethtool_cmd *ecmd) 566 { 567 struct i40e_netdev_priv *np = netdev_priv(netdev); 568 struct i40e_pf *pf = np->vsi->back; 569 struct i40e_hw *hw = &pf->hw; 570 struct i40e_link_status *hw_link_info = &hw->phy.link_info; 571 bool link_up = hw_link_info->link_info & I40E_AQ_LINK_UP; 572 573 if (link_up) 574 i40e_get_settings_link_up(hw, ecmd, netdev, pf); 575 else 576 i40e_get_settings_link_down(hw, ecmd, pf); 577 578 /* Now set the settings that don't rely on link being up/down */ 579 /* Set autoneg settings */ 580 ecmd->autoneg = ((hw_link_info->an_info & I40E_AQ_AN_COMPLETED) ? 581 AUTONEG_ENABLE : AUTONEG_DISABLE); 582 583 switch (hw->phy.media_type) { 584 case I40E_MEDIA_TYPE_BACKPLANE: 585 ecmd->supported |= SUPPORTED_Autoneg | 586 SUPPORTED_Backplane; 587 ecmd->advertising |= ADVERTISED_Autoneg | 588 ADVERTISED_Backplane; 589 ecmd->port = PORT_NONE; 590 break; 591 case I40E_MEDIA_TYPE_BASET: 592 ecmd->supported |= SUPPORTED_TP; 593 ecmd->advertising |= ADVERTISED_TP; 594 ecmd->port = PORT_TP; 595 break; 596 case I40E_MEDIA_TYPE_DA: 597 case I40E_MEDIA_TYPE_CX4: 598 ecmd->supported |= SUPPORTED_FIBRE; 599 ecmd->advertising |= ADVERTISED_FIBRE; 600 ecmd->port = PORT_DA; 601 break; 602 case I40E_MEDIA_TYPE_FIBER: 603 ecmd->supported |= SUPPORTED_FIBRE; 604 ecmd->port = PORT_FIBRE; 605 break; 606 case I40E_MEDIA_TYPE_UNKNOWN: 607 default: 608 ecmd->port = PORT_OTHER; 609 break; 610 } 611 612 /* Set transceiver */ 613 ecmd->transceiver = XCVR_EXTERNAL; 614 615 /* Set flow control settings */ 616 ecmd->supported |= SUPPORTED_Pause; 617 618 switch (hw->fc.requested_mode) { 619 case I40E_FC_FULL: 620 ecmd->advertising |= ADVERTISED_Pause; 621 break; 622 case I40E_FC_TX_PAUSE: 623 ecmd->advertising |= ADVERTISED_Asym_Pause; 624 break; 625 case I40E_FC_RX_PAUSE: 626 ecmd->advertising |= (ADVERTISED_Pause | 627 ADVERTISED_Asym_Pause); 628 break; 629 default: 630 ecmd->advertising &= ~(ADVERTISED_Pause | 631 ADVERTISED_Asym_Pause); 632 break; 633 } 634 635 return 0; 636 } 637 638 /** 639 * i40e_set_settings - Set Speed and Duplex 640 * @netdev: network interface device structure 641 * @ecmd: ethtool command 642 * 643 * Set speed/duplex per media_types advertised/forced 644 **/ 645 static int i40e_set_settings(struct net_device *netdev, 646 struct ethtool_cmd *ecmd) 647 { 648 struct i40e_netdev_priv *np = netdev_priv(netdev); 649 struct i40e_aq_get_phy_abilities_resp abilities; 650 struct i40e_aq_set_phy_config config; 651 struct i40e_pf *pf = np->vsi->back; 652 struct i40e_vsi *vsi = np->vsi; 653 struct i40e_hw *hw = &pf->hw; 654 struct ethtool_cmd safe_ecmd; 655 i40e_status status = 0; 656 bool change = false; 657 int err = 0; 658 u8 autoneg; 659 u32 advertise; 660 661 /* Changing port settings is not supported if this isn't the 662 * port's controlling PF 663 */ 664 if (hw->partition_id != 1) { 665 i40e_partition_setting_complaint(pf); 666 return -EOPNOTSUPP; 667 } 668 669 if (vsi != pf->vsi[pf->lan_vsi]) 670 return -EOPNOTSUPP; 671 672 if (hw->phy.media_type != I40E_MEDIA_TYPE_BASET && 673 hw->phy.media_type != I40E_MEDIA_TYPE_FIBER && 674 hw->phy.media_type != I40E_MEDIA_TYPE_BACKPLANE && 675 hw->phy.media_type != I40E_MEDIA_TYPE_DA && 676 hw->phy.link_info.link_info & I40E_AQ_LINK_UP) 677 return -EOPNOTSUPP; 678 679 if (hw->device_id == I40E_DEV_ID_KX_B || 680 hw->device_id == I40E_DEV_ID_KX_C || 681 hw->device_id == I40E_DEV_ID_20G_KR2 || 682 hw->device_id == I40E_DEV_ID_20G_KR2_A) { 683 netdev_info(netdev, "Changing settings is not supported on backplane.\n"); 684 return -EOPNOTSUPP; 685 } 686 687 /* get our own copy of the bits to check against */ 688 memset(&safe_ecmd, 0, sizeof(struct ethtool_cmd)); 689 i40e_get_settings(netdev, &safe_ecmd); 690 691 /* save autoneg and speed out of ecmd */ 692 autoneg = ecmd->autoneg; 693 advertise = ecmd->advertising; 694 695 /* set autoneg and speed back to what they currently are */ 696 ecmd->autoneg = safe_ecmd.autoneg; 697 ecmd->advertising = safe_ecmd.advertising; 698 699 ecmd->cmd = safe_ecmd.cmd; 700 /* If ecmd and safe_ecmd are not the same now, then they are 701 * trying to set something that we do not support 702 */ 703 if (memcmp(ecmd, &safe_ecmd, sizeof(struct ethtool_cmd))) 704 return -EOPNOTSUPP; 705 706 while (test_bit(__I40E_CONFIG_BUSY, &vsi->state)) 707 usleep_range(1000, 2000); 708 709 /* Get the current phy config */ 710 status = i40e_aq_get_phy_capabilities(hw, false, false, &abilities, 711 NULL); 712 if (status) 713 return -EAGAIN; 714 715 /* Copy abilities to config in case autoneg is not 716 * set below 717 */ 718 memset(&config, 0, sizeof(struct i40e_aq_set_phy_config)); 719 config.abilities = abilities.abilities; 720 721 /* Check autoneg */ 722 if (autoneg == AUTONEG_ENABLE) { 723 /* If autoneg was not already enabled */ 724 if (!(hw->phy.link_info.an_info & I40E_AQ_AN_COMPLETED)) { 725 /* If autoneg is not supported, return error */ 726 if (!(safe_ecmd.supported & SUPPORTED_Autoneg)) { 727 netdev_info(netdev, "Autoneg not supported on this phy\n"); 728 return -EINVAL; 729 } 730 /* Autoneg is allowed to change */ 731 config.abilities = abilities.abilities | 732 I40E_AQ_PHY_ENABLE_AN; 733 change = true; 734 } 735 } else { 736 /* If autoneg is currently enabled */ 737 if (hw->phy.link_info.an_info & I40E_AQ_AN_COMPLETED) { 738 /* If autoneg is supported 10GBASE_T is the only PHY 739 * that can disable it, so otherwise return error 740 */ 741 if (safe_ecmd.supported & SUPPORTED_Autoneg && 742 hw->phy.link_info.phy_type != 743 I40E_PHY_TYPE_10GBASE_T) { 744 netdev_info(netdev, "Autoneg cannot be disabled on this phy\n"); 745 return -EINVAL; 746 } 747 /* Autoneg is allowed to change */ 748 config.abilities = abilities.abilities & 749 ~I40E_AQ_PHY_ENABLE_AN; 750 change = true; 751 } 752 } 753 754 if (advertise & ~safe_ecmd.supported) 755 return -EINVAL; 756 757 if (advertise & ADVERTISED_100baseT_Full) 758 config.link_speed |= I40E_LINK_SPEED_100MB; 759 if (advertise & ADVERTISED_1000baseT_Full || 760 advertise & ADVERTISED_1000baseKX_Full) 761 config.link_speed |= I40E_LINK_SPEED_1GB; 762 if (advertise & ADVERTISED_10000baseT_Full || 763 advertise & ADVERTISED_10000baseKX4_Full || 764 advertise & ADVERTISED_10000baseKR_Full) 765 config.link_speed |= I40E_LINK_SPEED_10GB; 766 if (advertise & ADVERTISED_20000baseKR2_Full) 767 config.link_speed |= I40E_LINK_SPEED_20GB; 768 if (advertise & ADVERTISED_40000baseKR4_Full || 769 advertise & ADVERTISED_40000baseCR4_Full || 770 advertise & ADVERTISED_40000baseSR4_Full || 771 advertise & ADVERTISED_40000baseLR4_Full) 772 config.link_speed |= I40E_LINK_SPEED_40GB; 773 774 /* If speed didn't get set, set it to what it currently is. 775 * This is needed because if advertise is 0 (as it is when autoneg 776 * is disabled) then speed won't get set. 777 */ 778 if (!config.link_speed) 779 config.link_speed = abilities.link_speed; 780 781 if (change || (abilities.link_speed != config.link_speed)) { 782 /* copy over the rest of the abilities */ 783 config.phy_type = abilities.phy_type; 784 config.eee_capability = abilities.eee_capability; 785 config.eeer = abilities.eeer_val; 786 config.low_power_ctrl = abilities.d3_lpan; 787 788 /* save the requested speeds */ 789 hw->phy.link_info.requested_speeds = config.link_speed; 790 /* set link and auto negotiation so changes take effect */ 791 config.abilities |= I40E_AQ_PHY_ENABLE_ATOMIC_LINK; 792 /* If link is up put link down */ 793 if (hw->phy.link_info.link_info & I40E_AQ_LINK_UP) { 794 /* Tell the OS link is going down, the link will go 795 * back up when fw says it is ready asynchronously 796 */ 797 i40e_print_link_message(vsi, false); 798 netif_carrier_off(netdev); 799 netif_tx_stop_all_queues(netdev); 800 } 801 802 /* make the aq call */ 803 status = i40e_aq_set_phy_config(hw, &config, NULL); 804 if (status) { 805 netdev_info(netdev, "Set phy config failed, err %s aq_err %s\n", 806 i40e_stat_str(hw, status), 807 i40e_aq_str(hw, hw->aq.asq_last_status)); 808 return -EAGAIN; 809 } 810 811 status = i40e_update_link_info(hw); 812 if (status) 813 netdev_dbg(netdev, "Updating link info failed with err %s aq_err %s\n", 814 i40e_stat_str(hw, status), 815 i40e_aq_str(hw, hw->aq.asq_last_status)); 816 817 } else { 818 netdev_info(netdev, "Nothing changed, exiting without setting anything.\n"); 819 } 820 821 return err; 822 } 823 824 static int i40e_nway_reset(struct net_device *netdev) 825 { 826 /* restart autonegotiation */ 827 struct i40e_netdev_priv *np = netdev_priv(netdev); 828 struct i40e_pf *pf = np->vsi->back; 829 struct i40e_hw *hw = &pf->hw; 830 bool link_up = hw->phy.link_info.link_info & I40E_AQ_LINK_UP; 831 i40e_status ret = 0; 832 833 ret = i40e_aq_set_link_restart_an(hw, link_up, NULL); 834 if (ret) { 835 netdev_info(netdev, "link restart failed, err %s aq_err %s\n", 836 i40e_stat_str(hw, ret), 837 i40e_aq_str(hw, hw->aq.asq_last_status)); 838 return -EIO; 839 } 840 841 return 0; 842 } 843 844 /** 845 * i40e_get_pauseparam - Get Flow Control status 846 * Return tx/rx-pause status 847 **/ 848 static void i40e_get_pauseparam(struct net_device *netdev, 849 struct ethtool_pauseparam *pause) 850 { 851 struct i40e_netdev_priv *np = netdev_priv(netdev); 852 struct i40e_pf *pf = np->vsi->back; 853 struct i40e_hw *hw = &pf->hw; 854 struct i40e_link_status *hw_link_info = &hw->phy.link_info; 855 struct i40e_dcbx_config *dcbx_cfg = &hw->local_dcbx_config; 856 857 pause->autoneg = 858 ((hw_link_info->an_info & I40E_AQ_AN_COMPLETED) ? 859 AUTONEG_ENABLE : AUTONEG_DISABLE); 860 861 /* PFC enabled so report LFC as off */ 862 if (dcbx_cfg->pfc.pfcenable) { 863 pause->rx_pause = 0; 864 pause->tx_pause = 0; 865 return; 866 } 867 868 if (hw->fc.current_mode == I40E_FC_RX_PAUSE) { 869 pause->rx_pause = 1; 870 } else if (hw->fc.current_mode == I40E_FC_TX_PAUSE) { 871 pause->tx_pause = 1; 872 } else if (hw->fc.current_mode == I40E_FC_FULL) { 873 pause->rx_pause = 1; 874 pause->tx_pause = 1; 875 } 876 } 877 878 /** 879 * i40e_set_pauseparam - Set Flow Control parameter 880 * @netdev: network interface device structure 881 * @pause: return tx/rx flow control status 882 **/ 883 static int i40e_set_pauseparam(struct net_device *netdev, 884 struct ethtool_pauseparam *pause) 885 { 886 struct i40e_netdev_priv *np = netdev_priv(netdev); 887 struct i40e_pf *pf = np->vsi->back; 888 struct i40e_vsi *vsi = np->vsi; 889 struct i40e_hw *hw = &pf->hw; 890 struct i40e_link_status *hw_link_info = &hw->phy.link_info; 891 struct i40e_dcbx_config *dcbx_cfg = &hw->local_dcbx_config; 892 bool link_up = hw_link_info->link_info & I40E_AQ_LINK_UP; 893 i40e_status status; 894 u8 aq_failures; 895 int err = 0; 896 897 /* Changing the port's flow control is not supported if this isn't the 898 * port's controlling PF 899 */ 900 if (hw->partition_id != 1) { 901 i40e_partition_setting_complaint(pf); 902 return -EOPNOTSUPP; 903 } 904 905 if (vsi != pf->vsi[pf->lan_vsi]) 906 return -EOPNOTSUPP; 907 908 if (pause->autoneg != ((hw_link_info->an_info & I40E_AQ_AN_COMPLETED) ? 909 AUTONEG_ENABLE : AUTONEG_DISABLE)) { 910 netdev_info(netdev, "To change autoneg please use: ethtool -s <dev> autoneg <on|off>\n"); 911 return -EOPNOTSUPP; 912 } 913 914 /* If we have link and don't have autoneg */ 915 if (!test_bit(__I40E_DOWN, &pf->state) && 916 !(hw_link_info->an_info & I40E_AQ_AN_COMPLETED)) { 917 /* Send message that it might not necessarily work*/ 918 netdev_info(netdev, "Autoneg did not complete so changing settings may not result in an actual change.\n"); 919 } 920 921 if (dcbx_cfg->pfc.pfcenable) { 922 netdev_info(netdev, 923 "Priority flow control enabled. Cannot set link flow control.\n"); 924 return -EOPNOTSUPP; 925 } 926 927 if (pause->rx_pause && pause->tx_pause) 928 hw->fc.requested_mode = I40E_FC_FULL; 929 else if (pause->rx_pause && !pause->tx_pause) 930 hw->fc.requested_mode = I40E_FC_RX_PAUSE; 931 else if (!pause->rx_pause && pause->tx_pause) 932 hw->fc.requested_mode = I40E_FC_TX_PAUSE; 933 else if (!pause->rx_pause && !pause->tx_pause) 934 hw->fc.requested_mode = I40E_FC_NONE; 935 else 936 return -EINVAL; 937 938 /* Tell the OS link is going down, the link will go back up when fw 939 * says it is ready asynchronously 940 */ 941 i40e_print_link_message(vsi, false); 942 netif_carrier_off(netdev); 943 netif_tx_stop_all_queues(netdev); 944 945 /* Set the fc mode and only restart an if link is up*/ 946 status = i40e_set_fc(hw, &aq_failures, link_up); 947 948 if (aq_failures & I40E_SET_FC_AQ_FAIL_GET) { 949 netdev_info(netdev, "Set fc failed on the get_phy_capabilities call with err %s aq_err %s\n", 950 i40e_stat_str(hw, status), 951 i40e_aq_str(hw, hw->aq.asq_last_status)); 952 err = -EAGAIN; 953 } 954 if (aq_failures & I40E_SET_FC_AQ_FAIL_SET) { 955 netdev_info(netdev, "Set fc failed on the set_phy_config call with err %s aq_err %s\n", 956 i40e_stat_str(hw, status), 957 i40e_aq_str(hw, hw->aq.asq_last_status)); 958 err = -EAGAIN; 959 } 960 if (aq_failures & I40E_SET_FC_AQ_FAIL_UPDATE) { 961 netdev_info(netdev, "Set fc failed on the get_link_info call with err %s aq_err %s\n", 962 i40e_stat_str(hw, status), 963 i40e_aq_str(hw, hw->aq.asq_last_status)); 964 err = -EAGAIN; 965 } 966 967 if (!test_bit(__I40E_DOWN, &pf->state)) { 968 /* Give it a little more time to try to come back */ 969 msleep(75); 970 if (!test_bit(__I40E_DOWN, &pf->state)) 971 return i40e_nway_reset(netdev); 972 } 973 974 return err; 975 } 976 977 static u32 i40e_get_msglevel(struct net_device *netdev) 978 { 979 struct i40e_netdev_priv *np = netdev_priv(netdev); 980 struct i40e_pf *pf = np->vsi->back; 981 982 return pf->msg_enable; 983 } 984 985 static void i40e_set_msglevel(struct net_device *netdev, u32 data) 986 { 987 struct i40e_netdev_priv *np = netdev_priv(netdev); 988 struct i40e_pf *pf = np->vsi->back; 989 990 if (I40E_DEBUG_USER & data) 991 pf->hw.debug_mask = data; 992 pf->msg_enable = data; 993 } 994 995 static int i40e_get_regs_len(struct net_device *netdev) 996 { 997 int reg_count = 0; 998 int i; 999 1000 for (i = 0; i40e_reg_list[i].offset != 0; i++) 1001 reg_count += i40e_reg_list[i].elements; 1002 1003 return reg_count * sizeof(u32); 1004 } 1005 1006 static void i40e_get_regs(struct net_device *netdev, struct ethtool_regs *regs, 1007 void *p) 1008 { 1009 struct i40e_netdev_priv *np = netdev_priv(netdev); 1010 struct i40e_pf *pf = np->vsi->back; 1011 struct i40e_hw *hw = &pf->hw; 1012 u32 *reg_buf = p; 1013 int i, j, ri; 1014 u32 reg; 1015 1016 /* Tell ethtool which driver-version-specific regs output we have. 1017 * 1018 * At some point, if we have ethtool doing special formatting of 1019 * this data, it will rely on this version number to know how to 1020 * interpret things. Hence, this needs to be updated if/when the 1021 * diags register table is changed. 1022 */ 1023 regs->version = 1; 1024 1025 /* loop through the diags reg table for what to print */ 1026 ri = 0; 1027 for (i = 0; i40e_reg_list[i].offset != 0; i++) { 1028 for (j = 0; j < i40e_reg_list[i].elements; j++) { 1029 reg = i40e_reg_list[i].offset 1030 + (j * i40e_reg_list[i].stride); 1031 reg_buf[ri++] = rd32(hw, reg); 1032 } 1033 } 1034 1035 } 1036 1037 static int i40e_get_eeprom(struct net_device *netdev, 1038 struct ethtool_eeprom *eeprom, u8 *bytes) 1039 { 1040 struct i40e_netdev_priv *np = netdev_priv(netdev); 1041 struct i40e_hw *hw = &np->vsi->back->hw; 1042 struct i40e_pf *pf = np->vsi->back; 1043 int ret_val = 0, len, offset; 1044 u8 *eeprom_buff; 1045 u16 i, sectors; 1046 bool last; 1047 u32 magic; 1048 1049 #define I40E_NVM_SECTOR_SIZE 4096 1050 if (eeprom->len == 0) 1051 return -EINVAL; 1052 1053 /* check for NVMUpdate access method */ 1054 magic = hw->vendor_id | (hw->device_id << 16); 1055 if (eeprom->magic && eeprom->magic != magic) { 1056 struct i40e_nvm_access *cmd = (struct i40e_nvm_access *)eeprom; 1057 int errno = 0; 1058 1059 /* make sure it is the right magic for NVMUpdate */ 1060 if ((eeprom->magic >> 16) != hw->device_id) 1061 errno = -EINVAL; 1062 else if (test_bit(__I40E_RESET_RECOVERY_PENDING, &pf->state) || 1063 test_bit(__I40E_RESET_INTR_RECEIVED, &pf->state)) 1064 errno = -EBUSY; 1065 else 1066 ret_val = i40e_nvmupd_command(hw, cmd, bytes, &errno); 1067 1068 if ((errno || ret_val) && (hw->debug_mask & I40E_DEBUG_NVM)) 1069 dev_info(&pf->pdev->dev, 1070 "NVMUpdate read failed err=%d status=0x%x errno=%d module=%d offset=0x%x size=%d\n", 1071 ret_val, hw->aq.asq_last_status, errno, 1072 (u8)(cmd->config & I40E_NVM_MOD_PNT_MASK), 1073 cmd->offset, cmd->data_size); 1074 1075 return errno; 1076 } 1077 1078 /* normal ethtool get_eeprom support */ 1079 eeprom->magic = hw->vendor_id | (hw->device_id << 16); 1080 1081 eeprom_buff = kzalloc(eeprom->len, GFP_KERNEL); 1082 if (!eeprom_buff) 1083 return -ENOMEM; 1084 1085 ret_val = i40e_acquire_nvm(hw, I40E_RESOURCE_READ); 1086 if (ret_val) { 1087 dev_info(&pf->pdev->dev, 1088 "Failed Acquiring NVM resource for read err=%d status=0x%x\n", 1089 ret_val, hw->aq.asq_last_status); 1090 goto free_buff; 1091 } 1092 1093 sectors = eeprom->len / I40E_NVM_SECTOR_SIZE; 1094 sectors += (eeprom->len % I40E_NVM_SECTOR_SIZE) ? 1 : 0; 1095 len = I40E_NVM_SECTOR_SIZE; 1096 last = false; 1097 for (i = 0; i < sectors; i++) { 1098 if (i == (sectors - 1)) { 1099 len = eeprom->len - (I40E_NVM_SECTOR_SIZE * i); 1100 last = true; 1101 } 1102 offset = eeprom->offset + (I40E_NVM_SECTOR_SIZE * i), 1103 ret_val = i40e_aq_read_nvm(hw, 0x0, offset, len, 1104 (u8 *)eeprom_buff + (I40E_NVM_SECTOR_SIZE * i), 1105 last, NULL); 1106 if (ret_val && hw->aq.asq_last_status == I40E_AQ_RC_EPERM) { 1107 dev_info(&pf->pdev->dev, 1108 "read NVM failed, invalid offset 0x%x\n", 1109 offset); 1110 break; 1111 } else if (ret_val && 1112 hw->aq.asq_last_status == I40E_AQ_RC_EACCES) { 1113 dev_info(&pf->pdev->dev, 1114 "read NVM failed, access, offset 0x%x\n", 1115 offset); 1116 break; 1117 } else if (ret_val) { 1118 dev_info(&pf->pdev->dev, 1119 "read NVM failed offset %d err=%d status=0x%x\n", 1120 offset, ret_val, hw->aq.asq_last_status); 1121 break; 1122 } 1123 } 1124 1125 i40e_release_nvm(hw); 1126 memcpy(bytes, (u8 *)eeprom_buff, eeprom->len); 1127 free_buff: 1128 kfree(eeprom_buff); 1129 return ret_val; 1130 } 1131 1132 static int i40e_get_eeprom_len(struct net_device *netdev) 1133 { 1134 struct i40e_netdev_priv *np = netdev_priv(netdev); 1135 struct i40e_hw *hw = &np->vsi->back->hw; 1136 u32 val; 1137 1138 val = (rd32(hw, I40E_GLPCI_LBARCTRL) 1139 & I40E_GLPCI_LBARCTRL_FL_SIZE_MASK) 1140 >> I40E_GLPCI_LBARCTRL_FL_SIZE_SHIFT; 1141 /* register returns value in power of 2, 64Kbyte chunks. */ 1142 val = (64 * 1024) * BIT(val); 1143 return val; 1144 } 1145 1146 static int i40e_set_eeprom(struct net_device *netdev, 1147 struct ethtool_eeprom *eeprom, u8 *bytes) 1148 { 1149 struct i40e_netdev_priv *np = netdev_priv(netdev); 1150 struct i40e_hw *hw = &np->vsi->back->hw; 1151 struct i40e_pf *pf = np->vsi->back; 1152 struct i40e_nvm_access *cmd = (struct i40e_nvm_access *)eeprom; 1153 int ret_val = 0; 1154 int errno = 0; 1155 u32 magic; 1156 1157 /* normal ethtool set_eeprom is not supported */ 1158 magic = hw->vendor_id | (hw->device_id << 16); 1159 if (eeprom->magic == magic) 1160 errno = -EOPNOTSUPP; 1161 /* check for NVMUpdate access method */ 1162 else if (!eeprom->magic || (eeprom->magic >> 16) != hw->device_id) 1163 errno = -EINVAL; 1164 else if (test_bit(__I40E_RESET_RECOVERY_PENDING, &pf->state) || 1165 test_bit(__I40E_RESET_INTR_RECEIVED, &pf->state)) 1166 errno = -EBUSY; 1167 else 1168 ret_val = i40e_nvmupd_command(hw, cmd, bytes, &errno); 1169 1170 if ((errno || ret_val) && (hw->debug_mask & I40E_DEBUG_NVM)) 1171 dev_info(&pf->pdev->dev, 1172 "NVMUpdate write failed err=%d status=0x%x errno=%d module=%d offset=0x%x size=%d\n", 1173 ret_val, hw->aq.asq_last_status, errno, 1174 (u8)(cmd->config & I40E_NVM_MOD_PNT_MASK), 1175 cmd->offset, cmd->data_size); 1176 1177 return errno; 1178 } 1179 1180 static void i40e_get_drvinfo(struct net_device *netdev, 1181 struct ethtool_drvinfo *drvinfo) 1182 { 1183 struct i40e_netdev_priv *np = netdev_priv(netdev); 1184 struct i40e_vsi *vsi = np->vsi; 1185 struct i40e_pf *pf = vsi->back; 1186 1187 strlcpy(drvinfo->driver, i40e_driver_name, sizeof(drvinfo->driver)); 1188 strlcpy(drvinfo->version, i40e_driver_version_str, 1189 sizeof(drvinfo->version)); 1190 strlcpy(drvinfo->fw_version, i40e_nvm_version_str(&pf->hw), 1191 sizeof(drvinfo->fw_version)); 1192 strlcpy(drvinfo->bus_info, pci_name(pf->pdev), 1193 sizeof(drvinfo->bus_info)); 1194 if (pf->hw.pf_id == 0) 1195 drvinfo->n_priv_flags = I40E_PRIV_FLAGS_GL_STR_LEN; 1196 else 1197 drvinfo->n_priv_flags = I40E_PRIV_FLAGS_STR_LEN; 1198 } 1199 1200 static void i40e_get_ringparam(struct net_device *netdev, 1201 struct ethtool_ringparam *ring) 1202 { 1203 struct i40e_netdev_priv *np = netdev_priv(netdev); 1204 struct i40e_pf *pf = np->vsi->back; 1205 struct i40e_vsi *vsi = pf->vsi[pf->lan_vsi]; 1206 1207 ring->rx_max_pending = I40E_MAX_NUM_DESCRIPTORS; 1208 ring->tx_max_pending = I40E_MAX_NUM_DESCRIPTORS; 1209 ring->rx_mini_max_pending = 0; 1210 ring->rx_jumbo_max_pending = 0; 1211 ring->rx_pending = vsi->rx_rings[0]->count; 1212 ring->tx_pending = vsi->tx_rings[0]->count; 1213 ring->rx_mini_pending = 0; 1214 ring->rx_jumbo_pending = 0; 1215 } 1216 1217 static int i40e_set_ringparam(struct net_device *netdev, 1218 struct ethtool_ringparam *ring) 1219 { 1220 struct i40e_ring *tx_rings = NULL, *rx_rings = NULL; 1221 struct i40e_netdev_priv *np = netdev_priv(netdev); 1222 struct i40e_vsi *vsi = np->vsi; 1223 struct i40e_pf *pf = vsi->back; 1224 u32 new_rx_count, new_tx_count; 1225 int i, err = 0; 1226 1227 if ((ring->rx_mini_pending) || (ring->rx_jumbo_pending)) 1228 return -EINVAL; 1229 1230 if (ring->tx_pending > I40E_MAX_NUM_DESCRIPTORS || 1231 ring->tx_pending < I40E_MIN_NUM_DESCRIPTORS || 1232 ring->rx_pending > I40E_MAX_NUM_DESCRIPTORS || 1233 ring->rx_pending < I40E_MIN_NUM_DESCRIPTORS) { 1234 netdev_info(netdev, 1235 "Descriptors requested (Tx: %d / Rx: %d) out of range [%d-%d]\n", 1236 ring->tx_pending, ring->rx_pending, 1237 I40E_MIN_NUM_DESCRIPTORS, I40E_MAX_NUM_DESCRIPTORS); 1238 return -EINVAL; 1239 } 1240 1241 new_tx_count = ALIGN(ring->tx_pending, I40E_REQ_DESCRIPTOR_MULTIPLE); 1242 new_rx_count = ALIGN(ring->rx_pending, I40E_REQ_DESCRIPTOR_MULTIPLE); 1243 1244 /* if nothing to do return success */ 1245 if ((new_tx_count == vsi->tx_rings[0]->count) && 1246 (new_rx_count == vsi->rx_rings[0]->count)) 1247 return 0; 1248 1249 while (test_and_set_bit(__I40E_CONFIG_BUSY, &pf->state)) 1250 usleep_range(1000, 2000); 1251 1252 if (!netif_running(vsi->netdev)) { 1253 /* simple case - set for the next time the netdev is started */ 1254 for (i = 0; i < vsi->num_queue_pairs; i++) { 1255 vsi->tx_rings[i]->count = new_tx_count; 1256 vsi->rx_rings[i]->count = new_rx_count; 1257 } 1258 goto done; 1259 } 1260 1261 /* We can't just free everything and then setup again, 1262 * because the ISRs in MSI-X mode get passed pointers 1263 * to the Tx and Rx ring structs. 1264 */ 1265 1266 /* alloc updated Tx resources */ 1267 if (new_tx_count != vsi->tx_rings[0]->count) { 1268 netdev_info(netdev, 1269 "Changing Tx descriptor count from %d to %d.\n", 1270 vsi->tx_rings[0]->count, new_tx_count); 1271 tx_rings = kcalloc(vsi->alloc_queue_pairs, 1272 sizeof(struct i40e_ring), GFP_KERNEL); 1273 if (!tx_rings) { 1274 err = -ENOMEM; 1275 goto done; 1276 } 1277 1278 for (i = 0; i < vsi->num_queue_pairs; i++) { 1279 /* clone ring and setup updated count */ 1280 tx_rings[i] = *vsi->tx_rings[i]; 1281 tx_rings[i].count = new_tx_count; 1282 /* the desc and bi pointers will be reallocated in the 1283 * setup call 1284 */ 1285 tx_rings[i].desc = NULL; 1286 tx_rings[i].rx_bi = NULL; 1287 err = i40e_setup_tx_descriptors(&tx_rings[i]); 1288 if (err) { 1289 while (i) { 1290 i--; 1291 i40e_free_tx_resources(&tx_rings[i]); 1292 } 1293 kfree(tx_rings); 1294 tx_rings = NULL; 1295 1296 goto done; 1297 } 1298 } 1299 } 1300 1301 /* alloc updated Rx resources */ 1302 if (new_rx_count != vsi->rx_rings[0]->count) { 1303 netdev_info(netdev, 1304 "Changing Rx descriptor count from %d to %d\n", 1305 vsi->rx_rings[0]->count, new_rx_count); 1306 rx_rings = kcalloc(vsi->alloc_queue_pairs, 1307 sizeof(struct i40e_ring), GFP_KERNEL); 1308 if (!rx_rings) { 1309 err = -ENOMEM; 1310 goto free_tx; 1311 } 1312 1313 for (i = 0; i < vsi->num_queue_pairs; i++) { 1314 /* this is to allow wr32 to have something to write to 1315 * during early allocation of Rx buffers 1316 */ 1317 u32 __iomem faketail = 0; 1318 struct i40e_ring *ring; 1319 u16 unused; 1320 1321 /* clone ring and setup updated count */ 1322 rx_rings[i] = *vsi->rx_rings[i]; 1323 rx_rings[i].count = new_rx_count; 1324 /* the desc and bi pointers will be reallocated in the 1325 * setup call 1326 */ 1327 rx_rings[i].desc = NULL; 1328 rx_rings[i].rx_bi = NULL; 1329 rx_rings[i].tail = (u8 __iomem *)&faketail; 1330 err = i40e_setup_rx_descriptors(&rx_rings[i]); 1331 if (err) 1332 goto rx_unwind; 1333 1334 /* now allocate the Rx buffers to make sure the OS 1335 * has enough memory, any failure here means abort 1336 */ 1337 ring = &rx_rings[i]; 1338 unused = I40E_DESC_UNUSED(ring); 1339 err = i40e_alloc_rx_buffers(ring, unused); 1340 rx_unwind: 1341 if (err) { 1342 do { 1343 i40e_free_rx_resources(&rx_rings[i]); 1344 } while (i--); 1345 kfree(rx_rings); 1346 rx_rings = NULL; 1347 1348 goto free_tx; 1349 } 1350 } 1351 } 1352 1353 /* Bring interface down, copy in the new ring info, 1354 * then restore the interface 1355 */ 1356 i40e_down(vsi); 1357 1358 if (tx_rings) { 1359 for (i = 0; i < vsi->num_queue_pairs; i++) { 1360 i40e_free_tx_resources(vsi->tx_rings[i]); 1361 *vsi->tx_rings[i] = tx_rings[i]; 1362 } 1363 kfree(tx_rings); 1364 tx_rings = NULL; 1365 } 1366 1367 if (rx_rings) { 1368 for (i = 0; i < vsi->num_queue_pairs; i++) { 1369 i40e_free_rx_resources(vsi->rx_rings[i]); 1370 /* get the real tail offset */ 1371 rx_rings[i].tail = vsi->rx_rings[i]->tail; 1372 /* this is to fake out the allocation routine 1373 * into thinking it has to realloc everything 1374 * but the recycling logic will let us re-use 1375 * the buffers allocated above 1376 */ 1377 rx_rings[i].next_to_use = 0; 1378 rx_rings[i].next_to_clean = 0; 1379 rx_rings[i].next_to_alloc = 0; 1380 /* do a struct copy */ 1381 *vsi->rx_rings[i] = rx_rings[i]; 1382 } 1383 kfree(rx_rings); 1384 rx_rings = NULL; 1385 } 1386 1387 i40e_up(vsi); 1388 1389 free_tx: 1390 /* error cleanup if the Rx allocations failed after getting Tx */ 1391 if (tx_rings) { 1392 for (i = 0; i < vsi->num_queue_pairs; i++) 1393 i40e_free_tx_resources(&tx_rings[i]); 1394 kfree(tx_rings); 1395 tx_rings = NULL; 1396 } 1397 1398 done: 1399 clear_bit(__I40E_CONFIG_BUSY, &pf->state); 1400 1401 return err; 1402 } 1403 1404 static int i40e_get_sset_count(struct net_device *netdev, int sset) 1405 { 1406 struct i40e_netdev_priv *np = netdev_priv(netdev); 1407 struct i40e_vsi *vsi = np->vsi; 1408 struct i40e_pf *pf = vsi->back; 1409 1410 switch (sset) { 1411 case ETH_SS_TEST: 1412 return I40E_TEST_LEN; 1413 case ETH_SS_STATS: 1414 if (vsi == pf->vsi[pf->lan_vsi] && pf->hw.partition_id == 1) { 1415 int len = I40E_PF_STATS_LEN(netdev); 1416 1417 if ((pf->lan_veb != I40E_NO_VEB) && 1418 (pf->flags & I40E_FLAG_VEB_STATS_ENABLED)) 1419 len += I40E_VEB_STATS_TOTAL; 1420 return len; 1421 } else { 1422 return I40E_VSI_STATS_LEN(netdev); 1423 } 1424 case ETH_SS_PRIV_FLAGS: 1425 if (pf->hw.pf_id == 0) 1426 return I40E_PRIV_FLAGS_GL_STR_LEN; 1427 else 1428 return I40E_PRIV_FLAGS_STR_LEN; 1429 default: 1430 return -EOPNOTSUPP; 1431 } 1432 } 1433 1434 static void i40e_get_ethtool_stats(struct net_device *netdev, 1435 struct ethtool_stats *stats, u64 *data) 1436 { 1437 struct i40e_netdev_priv *np = netdev_priv(netdev); 1438 struct i40e_ring *tx_ring, *rx_ring; 1439 struct i40e_vsi *vsi = np->vsi; 1440 struct i40e_pf *pf = vsi->back; 1441 int i = 0; 1442 char *p; 1443 int j; 1444 struct rtnl_link_stats64 *net_stats = i40e_get_vsi_stats_struct(vsi); 1445 unsigned int start; 1446 1447 i40e_update_stats(vsi); 1448 1449 for (j = 0; j < I40E_NETDEV_STATS_LEN; j++) { 1450 p = (char *)net_stats + i40e_gstrings_net_stats[j].stat_offset; 1451 data[i++] = (i40e_gstrings_net_stats[j].sizeof_stat == 1452 sizeof(u64)) ? *(u64 *)p : *(u32 *)p; 1453 } 1454 for (j = 0; j < I40E_MISC_STATS_LEN; j++) { 1455 p = (char *)vsi + i40e_gstrings_misc_stats[j].stat_offset; 1456 data[i++] = (i40e_gstrings_misc_stats[j].sizeof_stat == 1457 sizeof(u64)) ? *(u64 *)p : *(u32 *)p; 1458 } 1459 #ifdef I40E_FCOE 1460 for (j = 0; j < I40E_FCOE_STATS_LEN; j++) { 1461 p = (char *)vsi + i40e_gstrings_fcoe_stats[j].stat_offset; 1462 data[i++] = (i40e_gstrings_fcoe_stats[j].sizeof_stat == 1463 sizeof(u64)) ? *(u64 *)p : *(u32 *)p; 1464 } 1465 #endif 1466 rcu_read_lock(); 1467 for (j = 0; j < vsi->num_queue_pairs; j++) { 1468 tx_ring = ACCESS_ONCE(vsi->tx_rings[j]); 1469 1470 if (!tx_ring) 1471 continue; 1472 1473 /* process Tx ring statistics */ 1474 do { 1475 start = u64_stats_fetch_begin_irq(&tx_ring->syncp); 1476 data[i] = tx_ring->stats.packets; 1477 data[i + 1] = tx_ring->stats.bytes; 1478 } while (u64_stats_fetch_retry_irq(&tx_ring->syncp, start)); 1479 i += 2; 1480 1481 /* Rx ring is the 2nd half of the queue pair */ 1482 rx_ring = &tx_ring[1]; 1483 do { 1484 start = u64_stats_fetch_begin_irq(&rx_ring->syncp); 1485 data[i] = rx_ring->stats.packets; 1486 data[i + 1] = rx_ring->stats.bytes; 1487 } while (u64_stats_fetch_retry_irq(&rx_ring->syncp, start)); 1488 i += 2; 1489 } 1490 rcu_read_unlock(); 1491 if (vsi != pf->vsi[pf->lan_vsi] || pf->hw.partition_id != 1) 1492 return; 1493 1494 if ((pf->lan_veb != I40E_NO_VEB) && 1495 (pf->flags & I40E_FLAG_VEB_STATS_ENABLED)) { 1496 struct i40e_veb *veb = pf->veb[pf->lan_veb]; 1497 1498 for (j = 0; j < I40E_VEB_STATS_LEN; j++) { 1499 p = (char *)veb; 1500 p += i40e_gstrings_veb_stats[j].stat_offset; 1501 data[i++] = (i40e_gstrings_veb_stats[j].sizeof_stat == 1502 sizeof(u64)) ? *(u64 *)p : *(u32 *)p; 1503 } 1504 for (j = 0; j < I40E_MAX_TRAFFIC_CLASS; j++) { 1505 data[i++] = veb->tc_stats.tc_tx_packets[j]; 1506 data[i++] = veb->tc_stats.tc_tx_bytes[j]; 1507 data[i++] = veb->tc_stats.tc_rx_packets[j]; 1508 data[i++] = veb->tc_stats.tc_rx_bytes[j]; 1509 } 1510 } 1511 for (j = 0; j < I40E_GLOBAL_STATS_LEN; j++) { 1512 p = (char *)pf + i40e_gstrings_stats[j].stat_offset; 1513 data[i++] = (i40e_gstrings_stats[j].sizeof_stat == 1514 sizeof(u64)) ? *(u64 *)p : *(u32 *)p; 1515 } 1516 for (j = 0; j < I40E_MAX_USER_PRIORITY; j++) { 1517 data[i++] = pf->stats.priority_xon_tx[j]; 1518 data[i++] = pf->stats.priority_xoff_tx[j]; 1519 } 1520 for (j = 0; j < I40E_MAX_USER_PRIORITY; j++) { 1521 data[i++] = pf->stats.priority_xon_rx[j]; 1522 data[i++] = pf->stats.priority_xoff_rx[j]; 1523 } 1524 for (j = 0; j < I40E_MAX_USER_PRIORITY; j++) 1525 data[i++] = pf->stats.priority_xon_2_xoff[j]; 1526 } 1527 1528 static void i40e_get_strings(struct net_device *netdev, u32 stringset, 1529 u8 *data) 1530 { 1531 struct i40e_netdev_priv *np = netdev_priv(netdev); 1532 struct i40e_vsi *vsi = np->vsi; 1533 struct i40e_pf *pf = vsi->back; 1534 char *p = (char *)data; 1535 int i; 1536 1537 switch (stringset) { 1538 case ETH_SS_TEST: 1539 for (i = 0; i < I40E_TEST_LEN; i++) { 1540 memcpy(data, i40e_gstrings_test[i], ETH_GSTRING_LEN); 1541 data += ETH_GSTRING_LEN; 1542 } 1543 break; 1544 case ETH_SS_STATS: 1545 for (i = 0; i < I40E_NETDEV_STATS_LEN; i++) { 1546 snprintf(p, ETH_GSTRING_LEN, "%s", 1547 i40e_gstrings_net_stats[i].stat_string); 1548 p += ETH_GSTRING_LEN; 1549 } 1550 for (i = 0; i < I40E_MISC_STATS_LEN; i++) { 1551 snprintf(p, ETH_GSTRING_LEN, "%s", 1552 i40e_gstrings_misc_stats[i].stat_string); 1553 p += ETH_GSTRING_LEN; 1554 } 1555 #ifdef I40E_FCOE 1556 for (i = 0; i < I40E_FCOE_STATS_LEN; i++) { 1557 snprintf(p, ETH_GSTRING_LEN, "%s", 1558 i40e_gstrings_fcoe_stats[i].stat_string); 1559 p += ETH_GSTRING_LEN; 1560 } 1561 #endif 1562 for (i = 0; i < vsi->num_queue_pairs; i++) { 1563 snprintf(p, ETH_GSTRING_LEN, "tx-%d.tx_packets", i); 1564 p += ETH_GSTRING_LEN; 1565 snprintf(p, ETH_GSTRING_LEN, "tx-%d.tx_bytes", i); 1566 p += ETH_GSTRING_LEN; 1567 snprintf(p, ETH_GSTRING_LEN, "rx-%d.rx_packets", i); 1568 p += ETH_GSTRING_LEN; 1569 snprintf(p, ETH_GSTRING_LEN, "rx-%d.rx_bytes", i); 1570 p += ETH_GSTRING_LEN; 1571 } 1572 if (vsi != pf->vsi[pf->lan_vsi] || pf->hw.partition_id != 1) 1573 return; 1574 1575 if ((pf->lan_veb != I40E_NO_VEB) && 1576 (pf->flags & I40E_FLAG_VEB_STATS_ENABLED)) { 1577 for (i = 0; i < I40E_VEB_STATS_LEN; i++) { 1578 snprintf(p, ETH_GSTRING_LEN, "veb.%s", 1579 i40e_gstrings_veb_stats[i].stat_string); 1580 p += ETH_GSTRING_LEN; 1581 } 1582 for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++) { 1583 snprintf(p, ETH_GSTRING_LEN, 1584 "veb.tc_%d_tx_packets", i); 1585 p += ETH_GSTRING_LEN; 1586 snprintf(p, ETH_GSTRING_LEN, 1587 "veb.tc_%d_tx_bytes", i); 1588 p += ETH_GSTRING_LEN; 1589 snprintf(p, ETH_GSTRING_LEN, 1590 "veb.tc_%d_rx_packets", i); 1591 p += ETH_GSTRING_LEN; 1592 snprintf(p, ETH_GSTRING_LEN, 1593 "veb.tc_%d_rx_bytes", i); 1594 p += ETH_GSTRING_LEN; 1595 } 1596 } 1597 for (i = 0; i < I40E_GLOBAL_STATS_LEN; i++) { 1598 snprintf(p, ETH_GSTRING_LEN, "port.%s", 1599 i40e_gstrings_stats[i].stat_string); 1600 p += ETH_GSTRING_LEN; 1601 } 1602 for (i = 0; i < I40E_MAX_USER_PRIORITY; i++) { 1603 snprintf(p, ETH_GSTRING_LEN, 1604 "port.tx_priority_%d_xon", i); 1605 p += ETH_GSTRING_LEN; 1606 snprintf(p, ETH_GSTRING_LEN, 1607 "port.tx_priority_%d_xoff", i); 1608 p += ETH_GSTRING_LEN; 1609 } 1610 for (i = 0; i < I40E_MAX_USER_PRIORITY; i++) { 1611 snprintf(p, ETH_GSTRING_LEN, 1612 "port.rx_priority_%d_xon", i); 1613 p += ETH_GSTRING_LEN; 1614 snprintf(p, ETH_GSTRING_LEN, 1615 "port.rx_priority_%d_xoff", i); 1616 p += ETH_GSTRING_LEN; 1617 } 1618 for (i = 0; i < I40E_MAX_USER_PRIORITY; i++) { 1619 snprintf(p, ETH_GSTRING_LEN, 1620 "port.rx_priority_%d_xon_2_xoff", i); 1621 p += ETH_GSTRING_LEN; 1622 } 1623 /* BUG_ON(p - data != I40E_STATS_LEN * ETH_GSTRING_LEN); */ 1624 break; 1625 case ETH_SS_PRIV_FLAGS: 1626 if (pf->hw.pf_id == 0) { 1627 for (i = 0; i < I40E_PRIV_FLAGS_GL_STR_LEN; i++) { 1628 memcpy(data, i40e_priv_flags_strings_gl[i], 1629 ETH_GSTRING_LEN); 1630 data += ETH_GSTRING_LEN; 1631 } 1632 } else { 1633 for (i = 0; i < I40E_PRIV_FLAGS_STR_LEN; i++) { 1634 memcpy(data, i40e_priv_flags_strings[i], 1635 ETH_GSTRING_LEN); 1636 data += ETH_GSTRING_LEN; 1637 } 1638 } 1639 break; 1640 default: 1641 break; 1642 } 1643 } 1644 1645 static int i40e_get_ts_info(struct net_device *dev, 1646 struct ethtool_ts_info *info) 1647 { 1648 struct i40e_pf *pf = i40e_netdev_to_pf(dev); 1649 1650 /* only report HW timestamping if PTP is enabled */ 1651 if (!(pf->flags & I40E_FLAG_PTP)) 1652 return ethtool_op_get_ts_info(dev, info); 1653 1654 info->so_timestamping = SOF_TIMESTAMPING_TX_SOFTWARE | 1655 SOF_TIMESTAMPING_RX_SOFTWARE | 1656 SOF_TIMESTAMPING_SOFTWARE | 1657 SOF_TIMESTAMPING_TX_HARDWARE | 1658 SOF_TIMESTAMPING_RX_HARDWARE | 1659 SOF_TIMESTAMPING_RAW_HARDWARE; 1660 1661 if (pf->ptp_clock) 1662 info->phc_index = ptp_clock_index(pf->ptp_clock); 1663 else 1664 info->phc_index = -1; 1665 1666 info->tx_types = BIT(HWTSTAMP_TX_OFF) | BIT(HWTSTAMP_TX_ON); 1667 1668 info->rx_filters = BIT(HWTSTAMP_FILTER_NONE) | 1669 BIT(HWTSTAMP_FILTER_PTP_V1_L4_EVENT) | 1670 BIT(HWTSTAMP_FILTER_PTP_V2_EVENT); 1671 1672 return 0; 1673 } 1674 1675 static int i40e_link_test(struct net_device *netdev, u64 *data) 1676 { 1677 struct i40e_netdev_priv *np = netdev_priv(netdev); 1678 struct i40e_pf *pf = np->vsi->back; 1679 i40e_status status; 1680 bool link_up = false; 1681 1682 netif_info(pf, hw, netdev, "link test\n"); 1683 status = i40e_get_link_status(&pf->hw, &link_up); 1684 if (status) { 1685 netif_err(pf, drv, netdev, "link query timed out, please retry test\n"); 1686 *data = 1; 1687 return *data; 1688 } 1689 1690 if (link_up) 1691 *data = 0; 1692 else 1693 *data = 1; 1694 1695 return *data; 1696 } 1697 1698 static int i40e_reg_test(struct net_device *netdev, u64 *data) 1699 { 1700 struct i40e_netdev_priv *np = netdev_priv(netdev); 1701 struct i40e_pf *pf = np->vsi->back; 1702 1703 netif_info(pf, hw, netdev, "register test\n"); 1704 *data = i40e_diag_reg_test(&pf->hw); 1705 1706 return *data; 1707 } 1708 1709 static int i40e_eeprom_test(struct net_device *netdev, u64 *data) 1710 { 1711 struct i40e_netdev_priv *np = netdev_priv(netdev); 1712 struct i40e_pf *pf = np->vsi->back; 1713 1714 netif_info(pf, hw, netdev, "eeprom test\n"); 1715 *data = i40e_diag_eeprom_test(&pf->hw); 1716 1717 /* forcebly clear the NVM Update state machine */ 1718 pf->hw.nvmupd_state = I40E_NVMUPD_STATE_INIT; 1719 1720 return *data; 1721 } 1722 1723 static int i40e_intr_test(struct net_device *netdev, u64 *data) 1724 { 1725 struct i40e_netdev_priv *np = netdev_priv(netdev); 1726 struct i40e_pf *pf = np->vsi->back; 1727 u16 swc_old = pf->sw_int_count; 1728 1729 netif_info(pf, hw, netdev, "interrupt test\n"); 1730 wr32(&pf->hw, I40E_PFINT_DYN_CTL0, 1731 (I40E_PFINT_DYN_CTL0_INTENA_MASK | 1732 I40E_PFINT_DYN_CTL0_SWINT_TRIG_MASK | 1733 I40E_PFINT_DYN_CTL0_ITR_INDX_MASK | 1734 I40E_PFINT_DYN_CTL0_SW_ITR_INDX_ENA_MASK | 1735 I40E_PFINT_DYN_CTL0_SW_ITR_INDX_MASK)); 1736 usleep_range(1000, 2000); 1737 *data = (swc_old == pf->sw_int_count); 1738 1739 return *data; 1740 } 1741 1742 static int i40e_loopback_test(struct net_device *netdev, u64 *data) 1743 { 1744 struct i40e_netdev_priv *np = netdev_priv(netdev); 1745 struct i40e_pf *pf = np->vsi->back; 1746 1747 netif_info(pf, hw, netdev, "loopback test not implemented\n"); 1748 *data = 0; 1749 1750 return *data; 1751 } 1752 1753 static inline bool i40e_active_vfs(struct i40e_pf *pf) 1754 { 1755 struct i40e_vf *vfs = pf->vf; 1756 int i; 1757 1758 for (i = 0; i < pf->num_alloc_vfs; i++) 1759 if (test_bit(I40E_VF_STAT_ACTIVE, &vfs[i].vf_states)) 1760 return true; 1761 return false; 1762 } 1763 1764 static inline bool i40e_active_vmdqs(struct i40e_pf *pf) 1765 { 1766 struct i40e_vsi **vsi = pf->vsi; 1767 int i; 1768 1769 for (i = 0; i < pf->num_alloc_vsi; i++) { 1770 if (!vsi[i]) 1771 continue; 1772 if (vsi[i]->type == I40E_VSI_VMDQ2) 1773 return true; 1774 } 1775 1776 return false; 1777 } 1778 1779 static void i40e_diag_test(struct net_device *netdev, 1780 struct ethtool_test *eth_test, u64 *data) 1781 { 1782 struct i40e_netdev_priv *np = netdev_priv(netdev); 1783 bool if_running = netif_running(netdev); 1784 struct i40e_pf *pf = np->vsi->back; 1785 1786 if (eth_test->flags == ETH_TEST_FL_OFFLINE) { 1787 /* Offline tests */ 1788 netif_info(pf, drv, netdev, "offline testing starting\n"); 1789 1790 set_bit(__I40E_TESTING, &pf->state); 1791 1792 if (i40e_active_vfs(pf) || i40e_active_vmdqs(pf)) { 1793 dev_warn(&pf->pdev->dev, 1794 "Please take active VFs and Netqueues offline and restart the adapter before running NIC diagnostics\n"); 1795 data[I40E_ETH_TEST_REG] = 1; 1796 data[I40E_ETH_TEST_EEPROM] = 1; 1797 data[I40E_ETH_TEST_INTR] = 1; 1798 data[I40E_ETH_TEST_LOOPBACK] = 1; 1799 data[I40E_ETH_TEST_LINK] = 1; 1800 eth_test->flags |= ETH_TEST_FL_FAILED; 1801 clear_bit(__I40E_TESTING, &pf->state); 1802 goto skip_ol_tests; 1803 } 1804 1805 /* If the device is online then take it offline */ 1806 if (if_running) 1807 /* indicate we're in test mode */ 1808 i40e_close(netdev); 1809 else 1810 /* This reset does not affect link - if it is 1811 * changed to a type of reset that does affect 1812 * link then the following link test would have 1813 * to be moved to before the reset 1814 */ 1815 i40e_do_reset(pf, BIT(__I40E_PF_RESET_REQUESTED)); 1816 1817 if (i40e_link_test(netdev, &data[I40E_ETH_TEST_LINK])) 1818 eth_test->flags |= ETH_TEST_FL_FAILED; 1819 1820 if (i40e_eeprom_test(netdev, &data[I40E_ETH_TEST_EEPROM])) 1821 eth_test->flags |= ETH_TEST_FL_FAILED; 1822 1823 if (i40e_intr_test(netdev, &data[I40E_ETH_TEST_INTR])) 1824 eth_test->flags |= ETH_TEST_FL_FAILED; 1825 1826 if (i40e_loopback_test(netdev, &data[I40E_ETH_TEST_LOOPBACK])) 1827 eth_test->flags |= ETH_TEST_FL_FAILED; 1828 1829 /* run reg test last, a reset is required after it */ 1830 if (i40e_reg_test(netdev, &data[I40E_ETH_TEST_REG])) 1831 eth_test->flags |= ETH_TEST_FL_FAILED; 1832 1833 clear_bit(__I40E_TESTING, &pf->state); 1834 i40e_do_reset(pf, BIT(__I40E_PF_RESET_REQUESTED)); 1835 1836 if (if_running) 1837 i40e_open(netdev); 1838 } else { 1839 /* Online tests */ 1840 netif_info(pf, drv, netdev, "online testing starting\n"); 1841 1842 if (i40e_link_test(netdev, &data[I40E_ETH_TEST_LINK])) 1843 eth_test->flags |= ETH_TEST_FL_FAILED; 1844 1845 /* Offline only tests, not run in online; pass by default */ 1846 data[I40E_ETH_TEST_REG] = 0; 1847 data[I40E_ETH_TEST_EEPROM] = 0; 1848 data[I40E_ETH_TEST_INTR] = 0; 1849 data[I40E_ETH_TEST_LOOPBACK] = 0; 1850 } 1851 1852 skip_ol_tests: 1853 1854 netif_info(pf, drv, netdev, "testing finished\n"); 1855 } 1856 1857 static void i40e_get_wol(struct net_device *netdev, 1858 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_hw *hw = &pf->hw; 1863 u16 wol_nvm_bits; 1864 1865 /* NVM bit on means WoL disabled for the port */ 1866 i40e_read_nvm_word(hw, I40E_SR_NVM_WAKE_ON_LAN, &wol_nvm_bits); 1867 if ((BIT(hw->port) & wol_nvm_bits) || (hw->partition_id != 1)) { 1868 wol->supported = 0; 1869 wol->wolopts = 0; 1870 } else { 1871 wol->supported = WAKE_MAGIC; 1872 wol->wolopts = (pf->wol_en ? WAKE_MAGIC : 0); 1873 } 1874 } 1875 1876 /** 1877 * i40e_set_wol - set the WakeOnLAN configuration 1878 * @netdev: the netdev in question 1879 * @wol: the ethtool WoL setting data 1880 **/ 1881 static int i40e_set_wol(struct net_device *netdev, struct ethtool_wolinfo *wol) 1882 { 1883 struct i40e_netdev_priv *np = netdev_priv(netdev); 1884 struct i40e_pf *pf = np->vsi->back; 1885 struct i40e_vsi *vsi = np->vsi; 1886 struct i40e_hw *hw = &pf->hw; 1887 u16 wol_nvm_bits; 1888 1889 /* WoL not supported if this isn't the controlling PF on the port */ 1890 if (hw->partition_id != 1) { 1891 i40e_partition_setting_complaint(pf); 1892 return -EOPNOTSUPP; 1893 } 1894 1895 if (vsi != pf->vsi[pf->lan_vsi]) 1896 return -EOPNOTSUPP; 1897 1898 /* NVM bit on means WoL disabled for the port */ 1899 i40e_read_nvm_word(hw, I40E_SR_NVM_WAKE_ON_LAN, &wol_nvm_bits); 1900 if (BIT(hw->port) & wol_nvm_bits) 1901 return -EOPNOTSUPP; 1902 1903 /* only magic packet is supported */ 1904 if (wol->wolopts && (wol->wolopts != WAKE_MAGIC)) 1905 return -EOPNOTSUPP; 1906 1907 /* is this a new value? */ 1908 if (pf->wol_en != !!wol->wolopts) { 1909 pf->wol_en = !!wol->wolopts; 1910 device_set_wakeup_enable(&pf->pdev->dev, pf->wol_en); 1911 } 1912 1913 return 0; 1914 } 1915 1916 static int i40e_set_phys_id(struct net_device *netdev, 1917 enum ethtool_phys_id_state state) 1918 { 1919 struct i40e_netdev_priv *np = netdev_priv(netdev); 1920 i40e_status ret = 0; 1921 struct i40e_pf *pf = np->vsi->back; 1922 struct i40e_hw *hw = &pf->hw; 1923 int blink_freq = 2; 1924 u16 temp_status; 1925 1926 switch (state) { 1927 case ETHTOOL_ID_ACTIVE: 1928 if (!(pf->flags & I40E_FLAG_HAVE_10GBASET_PHY)) { 1929 pf->led_status = i40e_led_get(hw); 1930 } else { 1931 i40e_aq_set_phy_debug(hw, I40E_PHY_DEBUG_ALL, NULL); 1932 ret = i40e_led_get_phy(hw, &temp_status, 1933 &pf->phy_led_val); 1934 pf->led_status = temp_status; 1935 } 1936 return blink_freq; 1937 case ETHTOOL_ID_ON: 1938 if (!(pf->flags & I40E_FLAG_HAVE_10GBASET_PHY)) 1939 i40e_led_set(hw, 0xf, false); 1940 else 1941 ret = i40e_led_set_phy(hw, true, pf->led_status, 0); 1942 break; 1943 case ETHTOOL_ID_OFF: 1944 if (!(pf->flags & I40E_FLAG_HAVE_10GBASET_PHY)) 1945 i40e_led_set(hw, 0x0, false); 1946 else 1947 ret = i40e_led_set_phy(hw, false, pf->led_status, 0); 1948 break; 1949 case ETHTOOL_ID_INACTIVE: 1950 if (!(pf->flags & I40E_FLAG_HAVE_10GBASET_PHY)) { 1951 i40e_led_set(hw, false, pf->led_status); 1952 } else { 1953 ret = i40e_led_set_phy(hw, false, pf->led_status, 1954 (pf->phy_led_val | 1955 I40E_PHY_LED_MODE_ORIG)); 1956 i40e_aq_set_phy_debug(hw, 0, NULL); 1957 } 1958 break; 1959 default: 1960 break; 1961 } 1962 if (ret) 1963 return -ENOENT; 1964 else 1965 return 0; 1966 } 1967 1968 /* NOTE: i40e hardware uses a conversion factor of 2 for Interrupt 1969 * Throttle Rate (ITR) ie. ITR(1) = 2us ITR(10) = 20 us, and also 1970 * 125us (8000 interrupts per second) == ITR(62) 1971 */ 1972 1973 /** 1974 * __i40e_get_coalesce - get per-queue coalesce settings 1975 * @netdev: the netdev to check 1976 * @ec: ethtool coalesce data structure 1977 * @queue: which queue to pick 1978 * 1979 * Gets the per-queue settings for coalescence. Specifically Rx and Tx usecs 1980 * are per queue. If queue is <0 then we default to queue 0 as the 1981 * representative value. 1982 **/ 1983 static int __i40e_get_coalesce(struct net_device *netdev, 1984 struct ethtool_coalesce *ec, 1985 int queue) 1986 { 1987 struct i40e_netdev_priv *np = netdev_priv(netdev); 1988 struct i40e_ring *rx_ring, *tx_ring; 1989 struct i40e_vsi *vsi = np->vsi; 1990 1991 ec->tx_max_coalesced_frames_irq = vsi->work_limit; 1992 ec->rx_max_coalesced_frames_irq = vsi->work_limit; 1993 1994 /* rx and tx usecs has per queue value. If user doesn't specify the queue, 1995 * return queue 0's value to represent. 1996 */ 1997 if (queue < 0) { 1998 queue = 0; 1999 } else if (queue >= vsi->num_queue_pairs) { 2000 return -EINVAL; 2001 } 2002 2003 rx_ring = vsi->rx_rings[queue]; 2004 tx_ring = vsi->tx_rings[queue]; 2005 2006 if (ITR_IS_DYNAMIC(rx_ring->rx_itr_setting)) 2007 ec->use_adaptive_rx_coalesce = 1; 2008 2009 if (ITR_IS_DYNAMIC(tx_ring->tx_itr_setting)) 2010 ec->use_adaptive_tx_coalesce = 1; 2011 2012 ec->rx_coalesce_usecs = rx_ring->rx_itr_setting & ~I40E_ITR_DYNAMIC; 2013 ec->tx_coalesce_usecs = tx_ring->tx_itr_setting & ~I40E_ITR_DYNAMIC; 2014 2015 2016 /* we use the _usecs_high to store/set the interrupt rate limit 2017 * that the hardware supports, that almost but not quite 2018 * fits the original intent of the ethtool variable, 2019 * the rx_coalesce_usecs_high limits total interrupts 2020 * per second from both tx/rx sources. 2021 */ 2022 ec->rx_coalesce_usecs_high = vsi->int_rate_limit; 2023 ec->tx_coalesce_usecs_high = vsi->int_rate_limit; 2024 2025 return 0; 2026 } 2027 2028 /** 2029 * i40e_get_coalesce - get a netdev's coalesce settings 2030 * @netdev: the netdev to check 2031 * @ec: ethtool coalesce data structure 2032 * 2033 * Gets the coalesce settings for a particular netdev. Note that if user has 2034 * modified per-queue settings, this only guarantees to represent queue 0. See 2035 * __i40e_get_coalesce for more details. 2036 **/ 2037 static int i40e_get_coalesce(struct net_device *netdev, 2038 struct ethtool_coalesce *ec) 2039 { 2040 return __i40e_get_coalesce(netdev, ec, -1); 2041 } 2042 2043 /** 2044 * i40e_get_per_queue_coalesce - gets coalesce settings for particular queue 2045 * @netdev: netdev structure 2046 * @ec: ethtool's coalesce settings 2047 * @queue: the particular queue to read 2048 * 2049 * Will read a specific queue's coalesce settings 2050 **/ 2051 static int i40e_get_per_queue_coalesce(struct net_device *netdev, u32 queue, 2052 struct ethtool_coalesce *ec) 2053 { 2054 return __i40e_get_coalesce(netdev, ec, queue); 2055 } 2056 2057 /** 2058 * i40e_set_itr_per_queue - set ITR values for specific queue 2059 * @vsi: the VSI to set values for 2060 * @ec: coalesce settings from ethtool 2061 * @queue: the queue to modify 2062 * 2063 * Change the ITR settings for a specific queue. 2064 **/ 2065 2066 static void i40e_set_itr_per_queue(struct i40e_vsi *vsi, 2067 struct ethtool_coalesce *ec, 2068 int queue) 2069 { 2070 struct i40e_pf *pf = vsi->back; 2071 struct i40e_hw *hw = &pf->hw; 2072 struct i40e_q_vector *q_vector; 2073 u16 vector, intrl; 2074 2075 intrl = INTRL_USEC_TO_REG(vsi->int_rate_limit); 2076 2077 vsi->rx_rings[queue]->rx_itr_setting = ec->rx_coalesce_usecs; 2078 vsi->tx_rings[queue]->tx_itr_setting = ec->tx_coalesce_usecs; 2079 2080 if (ec->use_adaptive_rx_coalesce) 2081 vsi->rx_rings[queue]->rx_itr_setting |= I40E_ITR_DYNAMIC; 2082 else 2083 vsi->rx_rings[queue]->rx_itr_setting &= ~I40E_ITR_DYNAMIC; 2084 2085 if (ec->use_adaptive_tx_coalesce) 2086 vsi->tx_rings[queue]->tx_itr_setting |= I40E_ITR_DYNAMIC; 2087 else 2088 vsi->tx_rings[queue]->tx_itr_setting &= ~I40E_ITR_DYNAMIC; 2089 2090 q_vector = vsi->rx_rings[queue]->q_vector; 2091 q_vector->rx.itr = ITR_TO_REG(vsi->rx_rings[queue]->rx_itr_setting); 2092 vector = vsi->base_vector + q_vector->v_idx; 2093 wr32(hw, I40E_PFINT_ITRN(I40E_RX_ITR, vector - 1), q_vector->rx.itr); 2094 2095 q_vector = vsi->tx_rings[queue]->q_vector; 2096 q_vector->tx.itr = ITR_TO_REG(vsi->tx_rings[queue]->tx_itr_setting); 2097 vector = vsi->base_vector + q_vector->v_idx; 2098 wr32(hw, I40E_PFINT_ITRN(I40E_TX_ITR, vector - 1), q_vector->tx.itr); 2099 2100 wr32(hw, I40E_PFINT_RATEN(vector - 1), intrl); 2101 i40e_flush(hw); 2102 } 2103 2104 /** 2105 * __i40e_set_coalesce - set coalesce settings for particular queue 2106 * @netdev: the netdev to change 2107 * @ec: ethtool coalesce settings 2108 * @queue: the queue to change 2109 * 2110 * Sets the coalesce settings for a particular queue. 2111 **/ 2112 static int __i40e_set_coalesce(struct net_device *netdev, 2113 struct ethtool_coalesce *ec, 2114 int queue) 2115 { 2116 struct i40e_netdev_priv *np = netdev_priv(netdev); 2117 struct i40e_vsi *vsi = np->vsi; 2118 struct i40e_pf *pf = vsi->back; 2119 int i; 2120 2121 if (ec->tx_max_coalesced_frames_irq || ec->rx_max_coalesced_frames_irq) 2122 vsi->work_limit = ec->tx_max_coalesced_frames_irq; 2123 2124 /* tx_coalesce_usecs_high is ignored, use rx-usecs-high instead */ 2125 if (ec->tx_coalesce_usecs_high != vsi->int_rate_limit) { 2126 netif_info(pf, drv, netdev, "tx-usecs-high is not used, please program rx-usecs-high\n"); 2127 return -EINVAL; 2128 } 2129 2130 if (ec->rx_coalesce_usecs_high >= INTRL_REG_TO_USEC(I40E_MAX_INTRL)) { 2131 netif_info(pf, drv, netdev, "Invalid value, rx-usecs-high range is 0-235\n"); 2132 return -EINVAL; 2133 } 2134 2135 if (ec->rx_coalesce_usecs == 0) { 2136 if (ec->use_adaptive_rx_coalesce) 2137 netif_info(pf, drv, netdev, "rx-usecs=0, need to disable adaptive-rx for a complete disable\n"); 2138 } else if ((ec->rx_coalesce_usecs < (I40E_MIN_ITR << 1)) || 2139 (ec->rx_coalesce_usecs > (I40E_MAX_ITR << 1))) { 2140 netif_info(pf, drv, netdev, "Invalid value, rx-usecs range is 0-8160\n"); 2141 return -EINVAL; 2142 } 2143 2144 vsi->int_rate_limit = ec->rx_coalesce_usecs_high; 2145 2146 if (ec->tx_coalesce_usecs == 0) { 2147 if (ec->use_adaptive_tx_coalesce) 2148 netif_info(pf, drv, netdev, "tx-usecs=0, need to disable adaptive-tx for a complete disable\n"); 2149 } else if ((ec->tx_coalesce_usecs < (I40E_MIN_ITR << 1)) || 2150 (ec->tx_coalesce_usecs > (I40E_MAX_ITR << 1))) { 2151 netif_info(pf, drv, netdev, "Invalid value, tx-usecs range is 0-8160\n"); 2152 return -EINVAL; 2153 } 2154 2155 /* rx and tx usecs has per queue value. If user doesn't specify the queue, 2156 * apply to all queues. 2157 */ 2158 if (queue < 0) { 2159 for (i = 0; i < vsi->num_queue_pairs; i++) 2160 i40e_set_itr_per_queue(vsi, ec, i); 2161 } else if (queue < vsi->num_queue_pairs) { 2162 i40e_set_itr_per_queue(vsi, ec, queue); 2163 } else { 2164 netif_info(pf, drv, netdev, "Invalid queue value, queue range is 0 - %d\n", 2165 vsi->num_queue_pairs - 1); 2166 return -EINVAL; 2167 } 2168 2169 return 0; 2170 } 2171 2172 /** 2173 * i40e_set_coalesce - set coalesce settings for every queue on the netdev 2174 * @netdev: the netdev to change 2175 * @ec: ethtool coalesce settings 2176 * 2177 * This will set each queue to the same coalesce settings. 2178 **/ 2179 static int i40e_set_coalesce(struct net_device *netdev, 2180 struct ethtool_coalesce *ec) 2181 { 2182 return __i40e_set_coalesce(netdev, ec, -1); 2183 } 2184 2185 /** 2186 * i40e_set_per_queue_coalesce - set specific queue's coalesce settings 2187 * @netdev: the netdev to change 2188 * @ec: ethtool's coalesce settings 2189 * @queue: the queue to change 2190 * 2191 * Sets the specified queue's coalesce settings. 2192 **/ 2193 static int i40e_set_per_queue_coalesce(struct net_device *netdev, u32 queue, 2194 struct ethtool_coalesce *ec) 2195 { 2196 return __i40e_set_coalesce(netdev, ec, queue); 2197 } 2198 2199 /** 2200 * i40e_get_rss_hash_opts - Get RSS hash Input Set for each flow type 2201 * @pf: pointer to the physical function struct 2202 * @cmd: ethtool rxnfc command 2203 * 2204 * Returns Success if the flow is supported, else Invalid Input. 2205 **/ 2206 static int i40e_get_rss_hash_opts(struct i40e_pf *pf, struct ethtool_rxnfc *cmd) 2207 { 2208 struct i40e_hw *hw = &pf->hw; 2209 u8 flow_pctype = 0; 2210 u64 i_set = 0; 2211 2212 cmd->data = 0; 2213 2214 switch (cmd->flow_type) { 2215 case TCP_V4_FLOW: 2216 flow_pctype = I40E_FILTER_PCTYPE_NONF_IPV4_TCP; 2217 break; 2218 case UDP_V4_FLOW: 2219 flow_pctype = I40E_FILTER_PCTYPE_NONF_IPV4_UDP; 2220 break; 2221 case TCP_V6_FLOW: 2222 flow_pctype = I40E_FILTER_PCTYPE_NONF_IPV6_TCP; 2223 break; 2224 case UDP_V6_FLOW: 2225 flow_pctype = I40E_FILTER_PCTYPE_NONF_IPV6_UDP; 2226 break; 2227 case SCTP_V4_FLOW: 2228 case AH_ESP_V4_FLOW: 2229 case AH_V4_FLOW: 2230 case ESP_V4_FLOW: 2231 case IPV4_FLOW: 2232 case SCTP_V6_FLOW: 2233 case AH_ESP_V6_FLOW: 2234 case AH_V6_FLOW: 2235 case ESP_V6_FLOW: 2236 case IPV6_FLOW: 2237 /* Default is src/dest for IP, no matter the L4 hashing */ 2238 cmd->data |= RXH_IP_SRC | RXH_IP_DST; 2239 break; 2240 default: 2241 return -EINVAL; 2242 } 2243 2244 /* Read flow based hash input set register */ 2245 if (flow_pctype) { 2246 i_set = (u64)i40e_read_rx_ctl(hw, I40E_GLQF_HASH_INSET(0, 2247 flow_pctype)) | 2248 ((u64)i40e_read_rx_ctl(hw, I40E_GLQF_HASH_INSET(1, 2249 flow_pctype)) << 32); 2250 } 2251 2252 /* Process bits of hash input set */ 2253 if (i_set) { 2254 if (i_set & I40E_L4_SRC_MASK) 2255 cmd->data |= RXH_L4_B_0_1; 2256 if (i_set & I40E_L4_DST_MASK) 2257 cmd->data |= RXH_L4_B_2_3; 2258 2259 if (cmd->flow_type == TCP_V4_FLOW || 2260 cmd->flow_type == UDP_V4_FLOW) { 2261 if (i_set & I40E_L3_SRC_MASK) 2262 cmd->data |= RXH_IP_SRC; 2263 if (i_set & I40E_L3_DST_MASK) 2264 cmd->data |= RXH_IP_DST; 2265 } else if (cmd->flow_type == TCP_V6_FLOW || 2266 cmd->flow_type == UDP_V6_FLOW) { 2267 if (i_set & I40E_L3_V6_SRC_MASK) 2268 cmd->data |= RXH_IP_SRC; 2269 if (i_set & I40E_L3_V6_DST_MASK) 2270 cmd->data |= RXH_IP_DST; 2271 } 2272 } 2273 2274 return 0; 2275 } 2276 2277 /** 2278 * i40e_get_ethtool_fdir_all - Populates the rule count of a command 2279 * @pf: Pointer to the physical function struct 2280 * @cmd: The command to get or set Rx flow classification rules 2281 * @rule_locs: Array of used rule locations 2282 * 2283 * This function populates both the total and actual rule count of 2284 * the ethtool flow classification command 2285 * 2286 * Returns 0 on success or -EMSGSIZE if entry not found 2287 **/ 2288 static int i40e_get_ethtool_fdir_all(struct i40e_pf *pf, 2289 struct ethtool_rxnfc *cmd, 2290 u32 *rule_locs) 2291 { 2292 struct i40e_fdir_filter *rule; 2293 struct hlist_node *node2; 2294 int cnt = 0; 2295 2296 /* report total rule count */ 2297 cmd->data = i40e_get_fd_cnt_all(pf); 2298 2299 hlist_for_each_entry_safe(rule, node2, 2300 &pf->fdir_filter_list, fdir_node) { 2301 if (cnt == cmd->rule_cnt) 2302 return -EMSGSIZE; 2303 2304 rule_locs[cnt] = rule->fd_id; 2305 cnt++; 2306 } 2307 2308 cmd->rule_cnt = cnt; 2309 2310 return 0; 2311 } 2312 2313 /** 2314 * i40e_get_ethtool_fdir_entry - Look up a filter based on Rx flow 2315 * @pf: Pointer to the physical function struct 2316 * @cmd: The command to get or set Rx flow classification rules 2317 * 2318 * This function looks up a filter based on the Rx flow classification 2319 * command and fills the flow spec info for it if found 2320 * 2321 * Returns 0 on success or -EINVAL if filter not found 2322 **/ 2323 static int i40e_get_ethtool_fdir_entry(struct i40e_pf *pf, 2324 struct ethtool_rxnfc *cmd) 2325 { 2326 struct ethtool_rx_flow_spec *fsp = 2327 (struct ethtool_rx_flow_spec *)&cmd->fs; 2328 struct i40e_fdir_filter *rule = NULL; 2329 struct hlist_node *node2; 2330 2331 hlist_for_each_entry_safe(rule, node2, 2332 &pf->fdir_filter_list, fdir_node) { 2333 if (fsp->location <= rule->fd_id) 2334 break; 2335 } 2336 2337 if (!rule || fsp->location != rule->fd_id) 2338 return -EINVAL; 2339 2340 fsp->flow_type = rule->flow_type; 2341 if (fsp->flow_type == IP_USER_FLOW) { 2342 fsp->h_u.usr_ip4_spec.ip_ver = ETH_RX_NFC_IP4; 2343 fsp->h_u.usr_ip4_spec.proto = 0; 2344 fsp->m_u.usr_ip4_spec.proto = 0; 2345 } 2346 2347 /* Reverse the src and dest notion, since the HW views them from 2348 * Tx perspective where as the user expects it from Rx filter view. 2349 */ 2350 fsp->h_u.tcp_ip4_spec.psrc = rule->dst_port; 2351 fsp->h_u.tcp_ip4_spec.pdst = rule->src_port; 2352 fsp->h_u.tcp_ip4_spec.ip4src = rule->dst_ip[0]; 2353 fsp->h_u.tcp_ip4_spec.ip4dst = rule->src_ip[0]; 2354 2355 if (rule->dest_ctl == I40E_FILTER_PROGRAM_DESC_DEST_DROP_PACKET) 2356 fsp->ring_cookie = RX_CLS_FLOW_DISC; 2357 else 2358 fsp->ring_cookie = rule->q_index; 2359 2360 if (rule->dest_vsi != pf->vsi[pf->lan_vsi]->id) { 2361 struct i40e_vsi *vsi; 2362 2363 vsi = i40e_find_vsi_from_id(pf, rule->dest_vsi); 2364 if (vsi && vsi->type == I40E_VSI_SRIOV) { 2365 fsp->h_ext.data[1] = htonl(vsi->vf_id); 2366 fsp->m_ext.data[1] = htonl(0x1); 2367 } 2368 } 2369 2370 return 0; 2371 } 2372 2373 /** 2374 * i40e_get_rxnfc - command to get RX flow classification rules 2375 * @netdev: network interface device structure 2376 * @cmd: ethtool rxnfc command 2377 * 2378 * Returns Success if the command is supported. 2379 **/ 2380 static int i40e_get_rxnfc(struct net_device *netdev, struct ethtool_rxnfc *cmd, 2381 u32 *rule_locs) 2382 { 2383 struct i40e_netdev_priv *np = netdev_priv(netdev); 2384 struct i40e_vsi *vsi = np->vsi; 2385 struct i40e_pf *pf = vsi->back; 2386 int ret = -EOPNOTSUPP; 2387 2388 switch (cmd->cmd) { 2389 case ETHTOOL_GRXRINGS: 2390 cmd->data = vsi->num_queue_pairs; 2391 ret = 0; 2392 break; 2393 case ETHTOOL_GRXFH: 2394 ret = i40e_get_rss_hash_opts(pf, cmd); 2395 break; 2396 case ETHTOOL_GRXCLSRLCNT: 2397 cmd->rule_cnt = pf->fdir_pf_active_filters; 2398 /* report total rule count */ 2399 cmd->data = i40e_get_fd_cnt_all(pf); 2400 ret = 0; 2401 break; 2402 case ETHTOOL_GRXCLSRULE: 2403 ret = i40e_get_ethtool_fdir_entry(pf, cmd); 2404 break; 2405 case ETHTOOL_GRXCLSRLALL: 2406 ret = i40e_get_ethtool_fdir_all(pf, cmd, rule_locs); 2407 break; 2408 default: 2409 break; 2410 } 2411 2412 return ret; 2413 } 2414 2415 /** 2416 * i40e_get_rss_hash_bits - Read RSS Hash bits from register 2417 * @nfc: pointer to user request 2418 * @i_setc bits currently set 2419 * 2420 * Returns value of bits to be set per user request 2421 **/ 2422 static u64 i40e_get_rss_hash_bits(struct ethtool_rxnfc *nfc, u64 i_setc) 2423 { 2424 u64 i_set = i_setc; 2425 u64 src_l3 = 0, dst_l3 = 0; 2426 2427 if (nfc->data & RXH_L4_B_0_1) 2428 i_set |= I40E_L4_SRC_MASK; 2429 else 2430 i_set &= ~I40E_L4_SRC_MASK; 2431 if (nfc->data & RXH_L4_B_2_3) 2432 i_set |= I40E_L4_DST_MASK; 2433 else 2434 i_set &= ~I40E_L4_DST_MASK; 2435 2436 if (nfc->flow_type == TCP_V6_FLOW || nfc->flow_type == UDP_V6_FLOW) { 2437 src_l3 = I40E_L3_V6_SRC_MASK; 2438 dst_l3 = I40E_L3_V6_DST_MASK; 2439 } else if (nfc->flow_type == TCP_V4_FLOW || 2440 nfc->flow_type == UDP_V4_FLOW) { 2441 src_l3 = I40E_L3_SRC_MASK; 2442 dst_l3 = I40E_L3_DST_MASK; 2443 } else { 2444 /* Any other flow type are not supported here */ 2445 return i_set; 2446 } 2447 2448 if (nfc->data & RXH_IP_SRC) 2449 i_set |= src_l3; 2450 else 2451 i_set &= ~src_l3; 2452 if (nfc->data & RXH_IP_DST) 2453 i_set |= dst_l3; 2454 else 2455 i_set &= ~dst_l3; 2456 2457 return i_set; 2458 } 2459 2460 /** 2461 * i40e_set_rss_hash_opt - Enable/Disable flow types for RSS hash 2462 * @pf: pointer to the physical function struct 2463 * @cmd: ethtool rxnfc command 2464 * 2465 * Returns Success if the flow input set is supported. 2466 **/ 2467 static int i40e_set_rss_hash_opt(struct i40e_pf *pf, struct ethtool_rxnfc *nfc) 2468 { 2469 struct i40e_hw *hw = &pf->hw; 2470 u64 hena = (u64)i40e_read_rx_ctl(hw, I40E_PFQF_HENA(0)) | 2471 ((u64)i40e_read_rx_ctl(hw, I40E_PFQF_HENA(1)) << 32); 2472 u8 flow_pctype = 0; 2473 u64 i_set, i_setc; 2474 2475 /* RSS does not support anything other than hashing 2476 * to queues on src and dst IPs and ports 2477 */ 2478 if (nfc->data & ~(RXH_IP_SRC | RXH_IP_DST | 2479 RXH_L4_B_0_1 | RXH_L4_B_2_3)) 2480 return -EINVAL; 2481 2482 switch (nfc->flow_type) { 2483 case TCP_V4_FLOW: 2484 flow_pctype = I40E_FILTER_PCTYPE_NONF_IPV4_TCP; 2485 if (pf->flags & I40E_FLAG_MULTIPLE_TCP_UDP_RSS_PCTYPE) 2486 hena |= 2487 BIT_ULL(I40E_FILTER_PCTYPE_NONF_IPV4_TCP_SYN_NO_ACK); 2488 break; 2489 case TCP_V6_FLOW: 2490 flow_pctype = I40E_FILTER_PCTYPE_NONF_IPV6_TCP; 2491 if (pf->flags & I40E_FLAG_MULTIPLE_TCP_UDP_RSS_PCTYPE) 2492 hena |= 2493 BIT_ULL(I40E_FILTER_PCTYPE_NONF_IPV4_TCP_SYN_NO_ACK); 2494 if (pf->flags & I40E_FLAG_MULTIPLE_TCP_UDP_RSS_PCTYPE) 2495 hena |= 2496 BIT_ULL(I40E_FILTER_PCTYPE_NONF_IPV6_TCP_SYN_NO_ACK); 2497 break; 2498 case UDP_V4_FLOW: 2499 flow_pctype = I40E_FILTER_PCTYPE_NONF_IPV4_UDP; 2500 if (pf->flags & I40E_FLAG_MULTIPLE_TCP_UDP_RSS_PCTYPE) 2501 hena |= 2502 BIT_ULL(I40E_FILTER_PCTYPE_NONF_UNICAST_IPV4_UDP) | 2503 BIT_ULL(I40E_FILTER_PCTYPE_NONF_MULTICAST_IPV4_UDP); 2504 2505 hena |= BIT_ULL(I40E_FILTER_PCTYPE_FRAG_IPV4); 2506 break; 2507 case UDP_V6_FLOW: 2508 flow_pctype = I40E_FILTER_PCTYPE_NONF_IPV6_UDP; 2509 if (pf->flags & I40E_FLAG_MULTIPLE_TCP_UDP_RSS_PCTYPE) 2510 hena |= 2511 BIT_ULL(I40E_FILTER_PCTYPE_NONF_UNICAST_IPV6_UDP) | 2512 BIT_ULL(I40E_FILTER_PCTYPE_NONF_MULTICAST_IPV6_UDP); 2513 2514 hena |= BIT_ULL(I40E_FILTER_PCTYPE_FRAG_IPV6); 2515 break; 2516 case AH_ESP_V4_FLOW: 2517 case AH_V4_FLOW: 2518 case ESP_V4_FLOW: 2519 case SCTP_V4_FLOW: 2520 if ((nfc->data & RXH_L4_B_0_1) || 2521 (nfc->data & RXH_L4_B_2_3)) 2522 return -EINVAL; 2523 hena |= BIT_ULL(I40E_FILTER_PCTYPE_NONF_IPV4_OTHER); 2524 break; 2525 case AH_ESP_V6_FLOW: 2526 case AH_V6_FLOW: 2527 case ESP_V6_FLOW: 2528 case SCTP_V6_FLOW: 2529 if ((nfc->data & RXH_L4_B_0_1) || 2530 (nfc->data & RXH_L4_B_2_3)) 2531 return -EINVAL; 2532 hena |= BIT_ULL(I40E_FILTER_PCTYPE_NONF_IPV6_OTHER); 2533 break; 2534 case IPV4_FLOW: 2535 hena |= BIT_ULL(I40E_FILTER_PCTYPE_NONF_IPV4_OTHER) | 2536 BIT_ULL(I40E_FILTER_PCTYPE_FRAG_IPV4); 2537 break; 2538 case IPV6_FLOW: 2539 hena |= BIT_ULL(I40E_FILTER_PCTYPE_NONF_IPV6_OTHER) | 2540 BIT_ULL(I40E_FILTER_PCTYPE_FRAG_IPV6); 2541 break; 2542 default: 2543 return -EINVAL; 2544 } 2545 2546 if (flow_pctype) { 2547 i_setc = (u64)i40e_read_rx_ctl(hw, I40E_GLQF_HASH_INSET(0, 2548 flow_pctype)) | 2549 ((u64)i40e_read_rx_ctl(hw, I40E_GLQF_HASH_INSET(1, 2550 flow_pctype)) << 32); 2551 i_set = i40e_get_rss_hash_bits(nfc, i_setc); 2552 i40e_write_rx_ctl(hw, I40E_GLQF_HASH_INSET(0, flow_pctype), 2553 (u32)i_set); 2554 i40e_write_rx_ctl(hw, I40E_GLQF_HASH_INSET(1, flow_pctype), 2555 (u32)(i_set >> 32)); 2556 hena |= BIT_ULL(flow_pctype); 2557 } 2558 2559 i40e_write_rx_ctl(hw, I40E_PFQF_HENA(0), (u32)hena); 2560 i40e_write_rx_ctl(hw, I40E_PFQF_HENA(1), (u32)(hena >> 32)); 2561 i40e_flush(hw); 2562 2563 return 0; 2564 } 2565 2566 /** 2567 * i40e_match_fdir_input_set - Match a new filter against an existing one 2568 * @rule: The filter already added 2569 * @input: The new filter to comapre against 2570 * 2571 * Returns true if the two input set match 2572 **/ 2573 static bool i40e_match_fdir_input_set(struct i40e_fdir_filter *rule, 2574 struct i40e_fdir_filter *input) 2575 { 2576 if ((rule->dst_ip[0] != input->dst_ip[0]) || 2577 (rule->src_ip[0] != input->src_ip[0]) || 2578 (rule->dst_port != input->dst_port) || 2579 (rule->src_port != input->src_port)) 2580 return false; 2581 return true; 2582 } 2583 2584 /** 2585 * i40e_update_ethtool_fdir_entry - Updates the fdir filter entry 2586 * @vsi: Pointer to the targeted VSI 2587 * @input: The filter to update or NULL to indicate deletion 2588 * @sw_idx: Software index to the filter 2589 * @cmd: The command to get or set Rx flow classification rules 2590 * 2591 * This function updates (or deletes) a Flow Director entry from 2592 * the hlist of the corresponding PF 2593 * 2594 * Returns 0 on success 2595 **/ 2596 static int i40e_update_ethtool_fdir_entry(struct i40e_vsi *vsi, 2597 struct i40e_fdir_filter *input, 2598 u16 sw_idx, 2599 struct ethtool_rxnfc *cmd) 2600 { 2601 struct i40e_fdir_filter *rule, *parent; 2602 struct i40e_pf *pf = vsi->back; 2603 struct hlist_node *node2; 2604 int err = -EINVAL; 2605 2606 parent = NULL; 2607 rule = NULL; 2608 2609 hlist_for_each_entry_safe(rule, node2, 2610 &pf->fdir_filter_list, fdir_node) { 2611 /* hash found, or no matching entry */ 2612 if (rule->fd_id >= sw_idx) 2613 break; 2614 parent = rule; 2615 } 2616 2617 /* if there is an old rule occupying our place remove it */ 2618 if (rule && (rule->fd_id == sw_idx)) { 2619 if (input && !i40e_match_fdir_input_set(rule, input)) 2620 err = i40e_add_del_fdir(vsi, rule, false); 2621 else if (!input) 2622 err = i40e_add_del_fdir(vsi, rule, false); 2623 hlist_del(&rule->fdir_node); 2624 kfree(rule); 2625 pf->fdir_pf_active_filters--; 2626 } 2627 2628 /* If no input this was a delete, err should be 0 if a rule was 2629 * successfully found and removed from the list else -EINVAL 2630 */ 2631 if (!input) 2632 return err; 2633 2634 /* initialize node and set software index */ 2635 INIT_HLIST_NODE(&input->fdir_node); 2636 2637 /* add filter to the list */ 2638 if (parent) 2639 hlist_add_behind(&input->fdir_node, &parent->fdir_node); 2640 else 2641 hlist_add_head(&input->fdir_node, 2642 &pf->fdir_filter_list); 2643 2644 /* update counts */ 2645 pf->fdir_pf_active_filters++; 2646 2647 return 0; 2648 } 2649 2650 /** 2651 * i40e_del_fdir_entry - Deletes a Flow Director filter entry 2652 * @vsi: Pointer to the targeted VSI 2653 * @cmd: The command to get or set Rx flow classification rules 2654 * 2655 * The function removes a Flow Director filter entry from the 2656 * hlist of the corresponding PF 2657 * 2658 * Returns 0 on success 2659 */ 2660 static int i40e_del_fdir_entry(struct i40e_vsi *vsi, 2661 struct ethtool_rxnfc *cmd) 2662 { 2663 struct ethtool_rx_flow_spec *fsp = 2664 (struct ethtool_rx_flow_spec *)&cmd->fs; 2665 struct i40e_pf *pf = vsi->back; 2666 int ret = 0; 2667 2668 if (test_bit(__I40E_RESET_RECOVERY_PENDING, &pf->state) || 2669 test_bit(__I40E_RESET_INTR_RECEIVED, &pf->state)) 2670 return -EBUSY; 2671 2672 if (test_bit(__I40E_FD_FLUSH_REQUESTED, &pf->state)) 2673 return -EBUSY; 2674 2675 ret = i40e_update_ethtool_fdir_entry(vsi, NULL, fsp->location, cmd); 2676 2677 i40e_fdir_check_and_reenable(pf); 2678 return ret; 2679 } 2680 2681 /** 2682 * i40e_add_fdir_ethtool - Add/Remove Flow Director filters 2683 * @vsi: pointer to the targeted VSI 2684 * @cmd: command to get or set RX flow classification rules 2685 * 2686 * Add Flow Director filters for a specific flow spec based on their 2687 * protocol. Returns 0 if the filters were successfully added. 2688 **/ 2689 static int i40e_add_fdir_ethtool(struct i40e_vsi *vsi, 2690 struct ethtool_rxnfc *cmd) 2691 { 2692 struct ethtool_rx_flow_spec *fsp; 2693 struct i40e_fdir_filter *input; 2694 struct i40e_pf *pf; 2695 int ret = -EINVAL; 2696 u16 vf_id; 2697 2698 if (!vsi) 2699 return -EINVAL; 2700 pf = vsi->back; 2701 2702 if (!(pf->flags & I40E_FLAG_FD_SB_ENABLED)) 2703 return -EOPNOTSUPP; 2704 2705 if (pf->auto_disable_flags & I40E_FLAG_FD_SB_ENABLED) 2706 return -ENOSPC; 2707 2708 if (test_bit(__I40E_RESET_RECOVERY_PENDING, &pf->state) || 2709 test_bit(__I40E_RESET_INTR_RECEIVED, &pf->state)) 2710 return -EBUSY; 2711 2712 if (test_bit(__I40E_FD_FLUSH_REQUESTED, &pf->state)) 2713 return -EBUSY; 2714 2715 fsp = (struct ethtool_rx_flow_spec *)&cmd->fs; 2716 2717 if (fsp->location >= (pf->hw.func_caps.fd_filters_best_effort + 2718 pf->hw.func_caps.fd_filters_guaranteed)) { 2719 return -EINVAL; 2720 } 2721 2722 if ((fsp->ring_cookie != RX_CLS_FLOW_DISC) && 2723 (fsp->ring_cookie >= vsi->num_queue_pairs)) 2724 return -EINVAL; 2725 2726 input = kzalloc(sizeof(*input), GFP_KERNEL); 2727 2728 if (!input) 2729 return -ENOMEM; 2730 2731 input->fd_id = fsp->location; 2732 2733 if (fsp->ring_cookie == RX_CLS_FLOW_DISC) 2734 input->dest_ctl = I40E_FILTER_PROGRAM_DESC_DEST_DROP_PACKET; 2735 else 2736 input->dest_ctl = 2737 I40E_FILTER_PROGRAM_DESC_DEST_DIRECT_PACKET_QINDEX; 2738 2739 input->q_index = fsp->ring_cookie; 2740 input->flex_off = 0; 2741 input->pctype = 0; 2742 input->dest_vsi = vsi->id; 2743 input->fd_status = I40E_FILTER_PROGRAM_DESC_FD_STATUS_FD_ID; 2744 input->cnt_index = I40E_FD_SB_STAT_IDX(pf->hw.pf_id); 2745 input->flow_type = fsp->flow_type; 2746 input->ip4_proto = fsp->h_u.usr_ip4_spec.proto; 2747 2748 /* Reverse the src and dest notion, since the HW expects them to be from 2749 * Tx perspective where as the input from user is from Rx filter view. 2750 */ 2751 input->dst_port = fsp->h_u.tcp_ip4_spec.psrc; 2752 input->src_port = fsp->h_u.tcp_ip4_spec.pdst; 2753 input->dst_ip[0] = fsp->h_u.tcp_ip4_spec.ip4src; 2754 input->src_ip[0] = fsp->h_u.tcp_ip4_spec.ip4dst; 2755 2756 if (ntohl(fsp->m_ext.data[1])) { 2757 vf_id = ntohl(fsp->h_ext.data[1]); 2758 if (vf_id >= pf->num_alloc_vfs) { 2759 netif_info(pf, drv, vsi->netdev, 2760 "Invalid VF id %d\n", vf_id); 2761 goto free_input; 2762 } 2763 /* Find vsi id from vf id and override dest vsi */ 2764 input->dest_vsi = pf->vf[vf_id].lan_vsi_id; 2765 if (input->q_index >= pf->vf[vf_id].num_queue_pairs) { 2766 netif_info(pf, drv, vsi->netdev, 2767 "Invalid queue id %d for VF %d\n", 2768 input->q_index, vf_id); 2769 goto free_input; 2770 } 2771 } 2772 2773 ret = i40e_add_del_fdir(vsi, input, true); 2774 free_input: 2775 if (ret) 2776 kfree(input); 2777 else 2778 i40e_update_ethtool_fdir_entry(vsi, input, fsp->location, NULL); 2779 2780 return ret; 2781 } 2782 2783 /** 2784 * i40e_set_rxnfc - command to set RX flow classification rules 2785 * @netdev: network interface device structure 2786 * @cmd: ethtool rxnfc command 2787 * 2788 * Returns Success if the command is supported. 2789 **/ 2790 static int i40e_set_rxnfc(struct net_device *netdev, struct ethtool_rxnfc *cmd) 2791 { 2792 struct i40e_netdev_priv *np = netdev_priv(netdev); 2793 struct i40e_vsi *vsi = np->vsi; 2794 struct i40e_pf *pf = vsi->back; 2795 int ret = -EOPNOTSUPP; 2796 2797 switch (cmd->cmd) { 2798 case ETHTOOL_SRXFH: 2799 ret = i40e_set_rss_hash_opt(pf, cmd); 2800 break; 2801 case ETHTOOL_SRXCLSRLINS: 2802 ret = i40e_add_fdir_ethtool(vsi, cmd); 2803 break; 2804 case ETHTOOL_SRXCLSRLDEL: 2805 ret = i40e_del_fdir_entry(vsi, cmd); 2806 break; 2807 default: 2808 break; 2809 } 2810 2811 return ret; 2812 } 2813 2814 /** 2815 * i40e_max_channels - get Max number of combined channels supported 2816 * @vsi: vsi pointer 2817 **/ 2818 static unsigned int i40e_max_channels(struct i40e_vsi *vsi) 2819 { 2820 /* TODO: This code assumes DCB and FD is disabled for now. */ 2821 return vsi->alloc_queue_pairs; 2822 } 2823 2824 /** 2825 * i40e_get_channels - Get the current channels enabled and max supported etc. 2826 * @netdev: network interface device structure 2827 * @ch: ethtool channels structure 2828 * 2829 * We don't support separate tx and rx queues as channels. The other count 2830 * represents how many queues are being used for control. max_combined counts 2831 * how many queue pairs we can support. They may not be mapped 1 to 1 with 2832 * q_vectors since we support a lot more queue pairs than q_vectors. 2833 **/ 2834 static void i40e_get_channels(struct net_device *dev, 2835 struct ethtool_channels *ch) 2836 { 2837 struct i40e_netdev_priv *np = netdev_priv(dev); 2838 struct i40e_vsi *vsi = np->vsi; 2839 struct i40e_pf *pf = vsi->back; 2840 2841 /* report maximum channels */ 2842 ch->max_combined = i40e_max_channels(vsi); 2843 2844 /* report info for other vector */ 2845 ch->other_count = (pf->flags & I40E_FLAG_FD_SB_ENABLED) ? 1 : 0; 2846 ch->max_other = ch->other_count; 2847 2848 /* Note: This code assumes DCB is disabled for now. */ 2849 ch->combined_count = vsi->num_queue_pairs; 2850 } 2851 2852 /** 2853 * i40e_set_channels - Set the new channels count. 2854 * @netdev: network interface device structure 2855 * @ch: ethtool channels structure 2856 * 2857 * The new channels count may not be the same as requested by the user 2858 * since it gets rounded down to a power of 2 value. 2859 **/ 2860 static int i40e_set_channels(struct net_device *dev, 2861 struct ethtool_channels *ch) 2862 { 2863 const u8 drop = I40E_FILTER_PROGRAM_DESC_DEST_DROP_PACKET; 2864 struct i40e_netdev_priv *np = netdev_priv(dev); 2865 unsigned int count = ch->combined_count; 2866 struct i40e_vsi *vsi = np->vsi; 2867 struct i40e_pf *pf = vsi->back; 2868 struct i40e_fdir_filter *rule; 2869 struct hlist_node *node2; 2870 int new_count; 2871 int err = 0; 2872 2873 /* We do not support setting channels for any other VSI at present */ 2874 if (vsi->type != I40E_VSI_MAIN) 2875 return -EINVAL; 2876 2877 /* verify they are not requesting separate vectors */ 2878 if (!count || ch->rx_count || ch->tx_count) 2879 return -EINVAL; 2880 2881 /* verify other_count has not changed */ 2882 if (ch->other_count != ((pf->flags & I40E_FLAG_FD_SB_ENABLED) ? 1 : 0)) 2883 return -EINVAL; 2884 2885 /* verify the number of channels does not exceed hardware limits */ 2886 if (count > i40e_max_channels(vsi)) 2887 return -EINVAL; 2888 2889 /* verify that the number of channels does not invalidate any current 2890 * flow director rules 2891 */ 2892 hlist_for_each_entry_safe(rule, node2, 2893 &pf->fdir_filter_list, fdir_node) { 2894 if (rule->dest_ctl != drop && count <= rule->q_index) { 2895 dev_warn(&pf->pdev->dev, 2896 "Existing user defined filter %d assigns flow to queue %d\n", 2897 rule->fd_id, rule->q_index); 2898 err = -EINVAL; 2899 } 2900 } 2901 2902 if (err) { 2903 dev_err(&pf->pdev->dev, 2904 "Existing filter rules must be deleted to reduce combined channel count to %d\n", 2905 count); 2906 return err; 2907 } 2908 2909 /* update feature limits from largest to smallest supported values */ 2910 /* TODO: Flow director limit, DCB etc */ 2911 2912 /* use rss_reconfig to rebuild with new queue count and update traffic 2913 * class queue mapping 2914 */ 2915 new_count = i40e_reconfig_rss_queues(pf, count); 2916 if (new_count > 0) 2917 return 0; 2918 else 2919 return -EINVAL; 2920 } 2921 2922 /** 2923 * i40e_get_rxfh_key_size - get the RSS hash key size 2924 * @netdev: network interface device structure 2925 * 2926 * Returns the table size. 2927 **/ 2928 static u32 i40e_get_rxfh_key_size(struct net_device *netdev) 2929 { 2930 return I40E_HKEY_ARRAY_SIZE; 2931 } 2932 2933 /** 2934 * i40e_get_rxfh_indir_size - get the rx flow hash indirection table size 2935 * @netdev: network interface device structure 2936 * 2937 * Returns the table size. 2938 **/ 2939 static u32 i40e_get_rxfh_indir_size(struct net_device *netdev) 2940 { 2941 return I40E_HLUT_ARRAY_SIZE; 2942 } 2943 2944 static int i40e_get_rxfh(struct net_device *netdev, u32 *indir, u8 *key, 2945 u8 *hfunc) 2946 { 2947 struct i40e_netdev_priv *np = netdev_priv(netdev); 2948 struct i40e_vsi *vsi = np->vsi; 2949 u8 *lut, *seed = NULL; 2950 int ret; 2951 u16 i; 2952 2953 if (hfunc) 2954 *hfunc = ETH_RSS_HASH_TOP; 2955 2956 if (!indir) 2957 return 0; 2958 2959 seed = key; 2960 lut = kzalloc(I40E_HLUT_ARRAY_SIZE, GFP_KERNEL); 2961 if (!lut) 2962 return -ENOMEM; 2963 ret = i40e_get_rss(vsi, seed, lut, I40E_HLUT_ARRAY_SIZE); 2964 if (ret) 2965 goto out; 2966 for (i = 0; i < I40E_HLUT_ARRAY_SIZE; i++) 2967 indir[i] = (u32)(lut[i]); 2968 2969 out: 2970 kfree(lut); 2971 2972 return ret; 2973 } 2974 2975 /** 2976 * i40e_set_rxfh - set the rx flow hash indirection table 2977 * @netdev: network interface device structure 2978 * @indir: indirection table 2979 * @key: hash key 2980 * 2981 * Returns -EINVAL if the table specifies an invalid queue id, otherwise 2982 * returns 0 after programming the table. 2983 **/ 2984 static int i40e_set_rxfh(struct net_device *netdev, const u32 *indir, 2985 const u8 *key, const u8 hfunc) 2986 { 2987 struct i40e_netdev_priv *np = netdev_priv(netdev); 2988 struct i40e_vsi *vsi = np->vsi; 2989 struct i40e_pf *pf = vsi->back; 2990 u8 *seed = NULL; 2991 u16 i; 2992 2993 if (hfunc != ETH_RSS_HASH_NO_CHANGE && hfunc != ETH_RSS_HASH_TOP) 2994 return -EOPNOTSUPP; 2995 2996 if (key) { 2997 if (!vsi->rss_hkey_user) { 2998 vsi->rss_hkey_user = kzalloc(I40E_HKEY_ARRAY_SIZE, 2999 GFP_KERNEL); 3000 if (!vsi->rss_hkey_user) 3001 return -ENOMEM; 3002 } 3003 memcpy(vsi->rss_hkey_user, key, I40E_HKEY_ARRAY_SIZE); 3004 seed = vsi->rss_hkey_user; 3005 } 3006 if (!vsi->rss_lut_user) { 3007 vsi->rss_lut_user = kzalloc(I40E_HLUT_ARRAY_SIZE, GFP_KERNEL); 3008 if (!vsi->rss_lut_user) 3009 return -ENOMEM; 3010 } 3011 3012 /* Each 32 bits pointed by 'indir' is stored with a lut entry */ 3013 if (indir) 3014 for (i = 0; i < I40E_HLUT_ARRAY_SIZE; i++) 3015 vsi->rss_lut_user[i] = (u8)(indir[i]); 3016 else 3017 i40e_fill_rss_lut(pf, vsi->rss_lut_user, I40E_HLUT_ARRAY_SIZE, 3018 vsi->rss_size); 3019 3020 return i40e_config_rss(vsi, seed, vsi->rss_lut_user, 3021 I40E_HLUT_ARRAY_SIZE); 3022 } 3023 3024 /** 3025 * i40e_get_priv_flags - report device private flags 3026 * @dev: network interface device structure 3027 * 3028 * The get string set count and the string set should be matched for each 3029 * flag returned. Add new strings for each flag to the i40e_priv_flags_strings 3030 * array. 3031 * 3032 * Returns a u32 bitmap of flags. 3033 **/ 3034 static u32 i40e_get_priv_flags(struct net_device *dev) 3035 { 3036 struct i40e_netdev_priv *np = netdev_priv(dev); 3037 struct i40e_vsi *vsi = np->vsi; 3038 struct i40e_pf *pf = vsi->back; 3039 u32 ret_flags = 0; 3040 3041 ret_flags |= pf->flags & I40E_FLAG_LINK_POLLING_ENABLED ? 3042 I40E_PRIV_FLAGS_LINKPOLL_FLAG : 0; 3043 ret_flags |= pf->flags & I40E_FLAG_FD_ATR_ENABLED ? 3044 I40E_PRIV_FLAGS_FD_ATR : 0; 3045 ret_flags |= pf->flags & I40E_FLAG_VEB_STATS_ENABLED ? 3046 I40E_PRIV_FLAGS_VEB_STATS : 0; 3047 ret_flags |= pf->auto_disable_flags & I40E_FLAG_HW_ATR_EVICT_CAPABLE ? 3048 0 : I40E_PRIV_FLAGS_HW_ATR_EVICT; 3049 if (pf->hw.pf_id == 0) { 3050 ret_flags |= pf->flags & I40E_FLAG_TRUE_PROMISC_SUPPORT ? 3051 I40E_PRIV_FLAGS_TRUE_PROMISC_SUPPORT : 0; 3052 } 3053 3054 return ret_flags; 3055 } 3056 3057 /** 3058 * i40e_set_priv_flags - set private flags 3059 * @dev: network interface device structure 3060 * @flags: bit flags to be set 3061 **/ 3062 static int i40e_set_priv_flags(struct net_device *dev, u32 flags) 3063 { 3064 struct i40e_netdev_priv *np = netdev_priv(dev); 3065 struct i40e_vsi *vsi = np->vsi; 3066 struct i40e_pf *pf = vsi->back; 3067 u16 sw_flags = 0, valid_flags = 0; 3068 bool reset_required = false; 3069 bool promisc_change = false; 3070 int ret; 3071 3072 /* NOTE: MFP is not settable */ 3073 3074 if (flags & I40E_PRIV_FLAGS_LINKPOLL_FLAG) 3075 pf->flags |= I40E_FLAG_LINK_POLLING_ENABLED; 3076 else 3077 pf->flags &= ~I40E_FLAG_LINK_POLLING_ENABLED; 3078 3079 /* allow the user to control the state of the Flow 3080 * Director ATR (Application Targeted Routing) feature 3081 * of the driver 3082 */ 3083 if (flags & I40E_PRIV_FLAGS_FD_ATR) { 3084 pf->flags |= I40E_FLAG_FD_ATR_ENABLED; 3085 } else { 3086 pf->flags &= ~I40E_FLAG_FD_ATR_ENABLED; 3087 pf->auto_disable_flags |= I40E_FLAG_FD_ATR_ENABLED; 3088 3089 /* flush current ATR settings */ 3090 set_bit(__I40E_FD_FLUSH_REQUESTED, &pf->state); 3091 } 3092 3093 if ((flags & I40E_PRIV_FLAGS_VEB_STATS) && 3094 !(pf->flags & I40E_FLAG_VEB_STATS_ENABLED)) { 3095 pf->flags |= I40E_FLAG_VEB_STATS_ENABLED; 3096 reset_required = true; 3097 } else if (!(flags & I40E_PRIV_FLAGS_VEB_STATS) && 3098 (pf->flags & I40E_FLAG_VEB_STATS_ENABLED)) { 3099 pf->flags &= ~I40E_FLAG_VEB_STATS_ENABLED; 3100 reset_required = true; 3101 } 3102 3103 if (pf->hw.pf_id == 0) { 3104 if ((flags & I40E_PRIV_FLAGS_TRUE_PROMISC_SUPPORT) && 3105 !(pf->flags & I40E_FLAG_TRUE_PROMISC_SUPPORT)) { 3106 pf->flags |= I40E_FLAG_TRUE_PROMISC_SUPPORT; 3107 promisc_change = true; 3108 } else if (!(flags & I40E_PRIV_FLAGS_TRUE_PROMISC_SUPPORT) && 3109 (pf->flags & I40E_FLAG_TRUE_PROMISC_SUPPORT)) { 3110 pf->flags &= ~I40E_FLAG_TRUE_PROMISC_SUPPORT; 3111 promisc_change = true; 3112 } 3113 } 3114 if (promisc_change) { 3115 if (!(pf->flags & I40E_FLAG_TRUE_PROMISC_SUPPORT)) 3116 sw_flags = I40E_AQ_SET_SWITCH_CFG_PROMISC; 3117 valid_flags = I40E_AQ_SET_SWITCH_CFG_PROMISC; 3118 ret = i40e_aq_set_switch_config(&pf->hw, sw_flags, valid_flags, 3119 NULL); 3120 if (ret && pf->hw.aq.asq_last_status != I40E_AQ_RC_ESRCH) { 3121 dev_info(&pf->pdev->dev, 3122 "couldn't set switch config bits, err %s aq_err %s\n", 3123 i40e_stat_str(&pf->hw, ret), 3124 i40e_aq_str(&pf->hw, 3125 pf->hw.aq.asq_last_status)); 3126 /* not a fatal problem, just keep going */ 3127 } 3128 } 3129 3130 if ((flags & I40E_PRIV_FLAGS_HW_ATR_EVICT) && 3131 (pf->flags & I40E_FLAG_HW_ATR_EVICT_CAPABLE)) 3132 pf->auto_disable_flags &= ~I40E_FLAG_HW_ATR_EVICT_CAPABLE; 3133 else 3134 pf->auto_disable_flags |= I40E_FLAG_HW_ATR_EVICT_CAPABLE; 3135 3136 /* if needed, issue reset to cause things to take effect */ 3137 if (reset_required) 3138 i40e_do_reset(pf, BIT(__I40E_PF_RESET_REQUESTED)); 3139 3140 return 0; 3141 } 3142 3143 static const struct ethtool_ops i40e_ethtool_ops = { 3144 .get_settings = i40e_get_settings, 3145 .set_settings = i40e_set_settings, 3146 .get_drvinfo = i40e_get_drvinfo, 3147 .get_regs_len = i40e_get_regs_len, 3148 .get_regs = i40e_get_regs, 3149 .nway_reset = i40e_nway_reset, 3150 .get_link = ethtool_op_get_link, 3151 .get_wol = i40e_get_wol, 3152 .set_wol = i40e_set_wol, 3153 .set_eeprom = i40e_set_eeprom, 3154 .get_eeprom_len = i40e_get_eeprom_len, 3155 .get_eeprom = i40e_get_eeprom, 3156 .get_ringparam = i40e_get_ringparam, 3157 .set_ringparam = i40e_set_ringparam, 3158 .get_pauseparam = i40e_get_pauseparam, 3159 .set_pauseparam = i40e_set_pauseparam, 3160 .get_msglevel = i40e_get_msglevel, 3161 .set_msglevel = i40e_set_msglevel, 3162 .get_rxnfc = i40e_get_rxnfc, 3163 .set_rxnfc = i40e_set_rxnfc, 3164 .self_test = i40e_diag_test, 3165 .get_strings = i40e_get_strings, 3166 .set_phys_id = i40e_set_phys_id, 3167 .get_sset_count = i40e_get_sset_count, 3168 .get_ethtool_stats = i40e_get_ethtool_stats, 3169 .get_coalesce = i40e_get_coalesce, 3170 .set_coalesce = i40e_set_coalesce, 3171 .get_rxfh_key_size = i40e_get_rxfh_key_size, 3172 .get_rxfh_indir_size = i40e_get_rxfh_indir_size, 3173 .get_rxfh = i40e_get_rxfh, 3174 .set_rxfh = i40e_set_rxfh, 3175 .get_channels = i40e_get_channels, 3176 .set_channels = i40e_set_channels, 3177 .get_ts_info = i40e_get_ts_info, 3178 .get_priv_flags = i40e_get_priv_flags, 3179 .set_priv_flags = i40e_set_priv_flags, 3180 .get_per_queue_coalesce = i40e_get_per_queue_coalesce, 3181 .set_per_queue_coalesce = i40e_set_per_queue_coalesce, 3182 }; 3183 3184 void i40e_set_ethtool_ops(struct net_device *netdev) 3185 { 3186 netdev->ethtool_ops = &i40e_ethtool_ops; 3187 } 3188