1 // SPDX-License-Identifier: GPL-2.0 2 /* Copyright(c) 2013 - 2018 Intel Corporation. */ 3 4 /* ethtool support for i40e */ 5 6 #include "i40e.h" 7 #include "i40e_diag.h" 8 9 /* ethtool statistics helpers */ 10 11 /** 12 * struct i40e_stats - definition for an ethtool statistic 13 * @stat_string: statistic name to display in ethtool -S output 14 * @sizeof_stat: the sizeof() the stat, must be no greater than sizeof(u64) 15 * @stat_offset: offsetof() the stat from a base pointer 16 * 17 * This structure defines a statistic to be added to the ethtool stats buffer. 18 * It defines a statistic as offset from a common base pointer. Stats should 19 * be defined in constant arrays using the I40E_STAT macro, with every element 20 * of the array using the same _type for calculating the sizeof_stat and 21 * stat_offset. 22 * 23 * The @sizeof_stat is expected to be sizeof(u8), sizeof(u16), sizeof(u32) or 24 * sizeof(u64). Other sizes are not expected and will produce a WARN_ONCE from 25 * the i40e_add_ethtool_stat() helper function. 26 * 27 * The @stat_string is interpreted as a format string, allowing formatted 28 * values to be inserted while looping over multiple structures for a given 29 * statistics array. Thus, every statistic string in an array should have the 30 * same type and number of format specifiers, to be formatted by variadic 31 * arguments to the i40e_add_stat_string() helper function. 32 **/ 33 struct i40e_stats { 34 char stat_string[ETH_GSTRING_LEN]; 35 int sizeof_stat; 36 int stat_offset; 37 }; 38 39 /* Helper macro to define an i40e_stat structure with proper size and type. 40 * Use this when defining constant statistics arrays. Note that @_type expects 41 * only a type name and is used multiple times. 42 */ 43 #define I40E_STAT(_type, _name, _stat) { \ 44 .stat_string = _name, \ 45 .sizeof_stat = FIELD_SIZEOF(_type, _stat), \ 46 .stat_offset = offsetof(_type, _stat) \ 47 } 48 49 /* Helper macro for defining some statistics directly copied from the netdev 50 * stats structure. 51 */ 52 #define I40E_NETDEV_STAT(_net_stat) \ 53 I40E_STAT(struct rtnl_link_stats64, #_net_stat, _net_stat) 54 55 /* Helper macro for defining some statistics related to queues */ 56 #define I40E_QUEUE_STAT(_name, _stat) \ 57 I40E_STAT(struct i40e_ring, _name, _stat) 58 59 /* Stats associated with a Tx or Rx ring */ 60 static const struct i40e_stats i40e_gstrings_queue_stats[] = { 61 I40E_QUEUE_STAT("%s-%u.packets", stats.packets), 62 I40E_QUEUE_STAT("%s-%u.bytes", stats.bytes), 63 }; 64 65 /** 66 * i40e_add_one_ethtool_stat - copy the stat into the supplied buffer 67 * @data: location to store the stat value 68 * @pointer: basis for where to copy from 69 * @stat: the stat definition 70 * 71 * Copies the stat data defined by the pointer and stat structure pair into 72 * the memory supplied as data. Used to implement i40e_add_ethtool_stats and 73 * i40e_add_queue_stats. If the pointer is null, data will be zero'd. 74 */ 75 static void 76 i40e_add_one_ethtool_stat(u64 *data, void *pointer, 77 const struct i40e_stats *stat) 78 { 79 char *p; 80 81 if (!pointer) { 82 /* ensure that the ethtool data buffer is zero'd for any stats 83 * which don't have a valid pointer. 84 */ 85 *data = 0; 86 return; 87 } 88 89 p = (char *)pointer + stat->stat_offset; 90 switch (stat->sizeof_stat) { 91 case sizeof(u64): 92 *data = *((u64 *)p); 93 break; 94 case sizeof(u32): 95 *data = *((u32 *)p); 96 break; 97 case sizeof(u16): 98 *data = *((u16 *)p); 99 break; 100 case sizeof(u8): 101 *data = *((u8 *)p); 102 break; 103 default: 104 WARN_ONCE(1, "unexpected stat size for %s", 105 stat->stat_string); 106 *data = 0; 107 } 108 } 109 110 /** 111 * __i40e_add_ethtool_stats - copy stats into the ethtool supplied buffer 112 * @data: ethtool stats buffer 113 * @pointer: location to copy stats from 114 * @stats: array of stats to copy 115 * @size: the size of the stats definition 116 * 117 * Copy the stats defined by the stats array using the pointer as a base into 118 * the data buffer supplied by ethtool. Updates the data pointer to point to 119 * the next empty location for successive calls to __i40e_add_ethtool_stats. 120 * If pointer is null, set the data values to zero and update the pointer to 121 * skip these stats. 122 **/ 123 static void 124 __i40e_add_ethtool_stats(u64 **data, void *pointer, 125 const struct i40e_stats stats[], 126 const unsigned int size) 127 { 128 unsigned int i; 129 130 for (i = 0; i < size; i++) 131 i40e_add_one_ethtool_stat((*data)++, pointer, &stats[i]); 132 } 133 134 /** 135 * i40e_add_ethtool_stats - copy stats into ethtool supplied buffer 136 * @data: ethtool stats buffer 137 * @pointer: location where stats are stored 138 * @stats: static const array of stat definitions 139 * 140 * Macro to ease the use of __i40e_add_ethtool_stats by taking a static 141 * constant stats array and passing the ARRAY_SIZE(). This avoids typos by 142 * ensuring that we pass the size associated with the given stats array. 143 * 144 * The parameter @stats is evaluated twice, so parameters with side effects 145 * should be avoided. 146 **/ 147 #define i40e_add_ethtool_stats(data, pointer, stats) \ 148 __i40e_add_ethtool_stats(data, pointer, stats, ARRAY_SIZE(stats)) 149 150 /** 151 * i40e_add_queue_stats - copy queue statistics into supplied buffer 152 * @data: ethtool stats buffer 153 * @ring: the ring to copy 154 * 155 * Queue statistics must be copied while protected by 156 * u64_stats_fetch_begin_irq, so we can't directly use i40e_add_ethtool_stats. 157 * Assumes that queue stats are defined in i40e_gstrings_queue_stats. If the 158 * ring pointer is null, zero out the queue stat values and update the data 159 * pointer. Otherwise safely copy the stats from the ring into the supplied 160 * buffer and update the data pointer when finished. 161 * 162 * This function expects to be called while under rcu_read_lock(). 163 **/ 164 static void 165 i40e_add_queue_stats(u64 **data, struct i40e_ring *ring) 166 { 167 const unsigned int size = ARRAY_SIZE(i40e_gstrings_queue_stats); 168 const struct i40e_stats *stats = i40e_gstrings_queue_stats; 169 unsigned int start; 170 unsigned int i; 171 172 /* To avoid invalid statistics values, ensure that we keep retrying 173 * the copy until we get a consistent value according to 174 * u64_stats_fetch_retry_irq. But first, make sure our ring is 175 * non-null before attempting to access its syncp. 176 */ 177 do { 178 start = !ring ? 0 : u64_stats_fetch_begin_irq(&ring->syncp); 179 for (i = 0; i < size; i++) { 180 i40e_add_one_ethtool_stat(&(*data)[i], ring, 181 &stats[i]); 182 } 183 } while (ring && u64_stats_fetch_retry_irq(&ring->syncp, start)); 184 185 /* Once we successfully copy the stats in, update the data pointer */ 186 *data += size; 187 } 188 189 /** 190 * __i40e_add_stat_strings - copy stat strings into ethtool buffer 191 * @p: ethtool supplied buffer 192 * @stats: stat definitions array 193 * @size: size of the stats array 194 * 195 * Format and copy the strings described by stats into the buffer pointed at 196 * by p. 197 **/ 198 static void __i40e_add_stat_strings(u8 **p, const struct i40e_stats stats[], 199 const unsigned int size, ...) 200 { 201 unsigned int i; 202 203 for (i = 0; i < size; i++) { 204 va_list args; 205 206 va_start(args, size); 207 vsnprintf(*p, ETH_GSTRING_LEN, stats[i].stat_string, args); 208 *p += ETH_GSTRING_LEN; 209 va_end(args); 210 } 211 } 212 213 /** 214 * 40e_add_stat_strings - copy stat strings into ethtool buffer 215 * @p: ethtool supplied buffer 216 * @stats: stat definitions array 217 * 218 * Format and copy the strings described by the const static stats value into 219 * the buffer pointed at by p. 220 * 221 * The parameter @stats is evaluated twice, so parameters with side effects 222 * should be avoided. Additionally, stats must be an array such that 223 * ARRAY_SIZE can be called on it. 224 **/ 225 #define i40e_add_stat_strings(p, stats, ...) \ 226 __i40e_add_stat_strings(p, stats, ARRAY_SIZE(stats), ## __VA_ARGS__) 227 228 #define I40E_PF_STAT(_name, _stat) \ 229 I40E_STAT(struct i40e_pf, _name, _stat) 230 #define I40E_VSI_STAT(_name, _stat) \ 231 I40E_STAT(struct i40e_vsi, _name, _stat) 232 #define I40E_VEB_STAT(_name, _stat) \ 233 I40E_STAT(struct i40e_veb, _name, _stat) 234 #define I40E_PFC_STAT(_name, _stat) \ 235 I40E_STAT(struct i40e_pfc_stats, _name, _stat) 236 #define I40E_QUEUE_STAT(_name, _stat) \ 237 I40E_STAT(struct i40e_ring, _name, _stat) 238 239 static const struct i40e_stats i40e_gstrings_net_stats[] = { 240 I40E_NETDEV_STAT(rx_packets), 241 I40E_NETDEV_STAT(tx_packets), 242 I40E_NETDEV_STAT(rx_bytes), 243 I40E_NETDEV_STAT(tx_bytes), 244 I40E_NETDEV_STAT(rx_errors), 245 I40E_NETDEV_STAT(tx_errors), 246 I40E_NETDEV_STAT(rx_dropped), 247 I40E_NETDEV_STAT(tx_dropped), 248 I40E_NETDEV_STAT(collisions), 249 I40E_NETDEV_STAT(rx_length_errors), 250 I40E_NETDEV_STAT(rx_crc_errors), 251 }; 252 253 static const struct i40e_stats i40e_gstrings_veb_stats[] = { 254 I40E_VEB_STAT("veb.rx_bytes", stats.rx_bytes), 255 I40E_VEB_STAT("veb.tx_bytes", stats.tx_bytes), 256 I40E_VEB_STAT("veb.rx_unicast", stats.rx_unicast), 257 I40E_VEB_STAT("veb.tx_unicast", stats.tx_unicast), 258 I40E_VEB_STAT("veb.rx_multicast", stats.rx_multicast), 259 I40E_VEB_STAT("veb.tx_multicast", stats.tx_multicast), 260 I40E_VEB_STAT("veb.rx_broadcast", stats.rx_broadcast), 261 I40E_VEB_STAT("veb.tx_broadcast", stats.tx_broadcast), 262 I40E_VEB_STAT("veb.rx_discards", stats.rx_discards), 263 I40E_VEB_STAT("veb.tx_discards", stats.tx_discards), 264 I40E_VEB_STAT("veb.tx_errors", stats.tx_errors), 265 I40E_VEB_STAT("veb.rx_unknown_protocol", stats.rx_unknown_protocol), 266 }; 267 268 static const struct i40e_stats i40e_gstrings_veb_tc_stats[] = { 269 I40E_VEB_STAT("veb.tc_%u_tx_packets", tc_stats.tc_tx_packets), 270 I40E_VEB_STAT("veb.tc_%u_tx_bytes", tc_stats.tc_tx_bytes), 271 I40E_VEB_STAT("veb.tc_%u_rx_packets", tc_stats.tc_rx_packets), 272 I40E_VEB_STAT("veb.tc_%u_rx_bytes", tc_stats.tc_rx_bytes), 273 }; 274 275 static const struct i40e_stats i40e_gstrings_misc_stats[] = { 276 I40E_VSI_STAT("rx_unicast", eth_stats.rx_unicast), 277 I40E_VSI_STAT("tx_unicast", eth_stats.tx_unicast), 278 I40E_VSI_STAT("rx_multicast", eth_stats.rx_multicast), 279 I40E_VSI_STAT("tx_multicast", eth_stats.tx_multicast), 280 I40E_VSI_STAT("rx_broadcast", eth_stats.rx_broadcast), 281 I40E_VSI_STAT("tx_broadcast", eth_stats.tx_broadcast), 282 I40E_VSI_STAT("rx_unknown_protocol", eth_stats.rx_unknown_protocol), 283 I40E_VSI_STAT("tx_linearize", tx_linearize), 284 I40E_VSI_STAT("tx_force_wb", tx_force_wb), 285 I40E_VSI_STAT("tx_busy", tx_busy), 286 I40E_VSI_STAT("rx_alloc_fail", rx_buf_failed), 287 I40E_VSI_STAT("rx_pg_alloc_fail", rx_page_failed), 288 }; 289 290 /* These PF_STATs might look like duplicates of some NETDEV_STATs, 291 * but they are separate. This device supports Virtualization, and 292 * as such might have several netdevs supporting VMDq and FCoE going 293 * through a single port. The NETDEV_STATs are for individual netdevs 294 * seen at the top of the stack, and the PF_STATs are for the physical 295 * function at the bottom of the stack hosting those netdevs. 296 * 297 * The PF_STATs are appended to the netdev stats only when ethtool -S 298 * is queried on the base PF netdev, not on the VMDq or FCoE netdev. 299 */ 300 static const struct i40e_stats i40e_gstrings_stats[] = { 301 I40E_PF_STAT("port.rx_bytes", stats.eth.rx_bytes), 302 I40E_PF_STAT("port.tx_bytes", stats.eth.tx_bytes), 303 I40E_PF_STAT("port.rx_unicast", stats.eth.rx_unicast), 304 I40E_PF_STAT("port.tx_unicast", stats.eth.tx_unicast), 305 I40E_PF_STAT("port.rx_multicast", stats.eth.rx_multicast), 306 I40E_PF_STAT("port.tx_multicast", stats.eth.tx_multicast), 307 I40E_PF_STAT("port.rx_broadcast", stats.eth.rx_broadcast), 308 I40E_PF_STAT("port.tx_broadcast", stats.eth.tx_broadcast), 309 I40E_PF_STAT("port.tx_errors", stats.eth.tx_errors), 310 I40E_PF_STAT("port.rx_dropped", stats.eth.rx_discards), 311 I40E_PF_STAT("port.tx_dropped_link_down", stats.tx_dropped_link_down), 312 I40E_PF_STAT("port.rx_crc_errors", stats.crc_errors), 313 I40E_PF_STAT("port.illegal_bytes", stats.illegal_bytes), 314 I40E_PF_STAT("port.mac_local_faults", stats.mac_local_faults), 315 I40E_PF_STAT("port.mac_remote_faults", stats.mac_remote_faults), 316 I40E_PF_STAT("port.tx_timeout", tx_timeout_count), 317 I40E_PF_STAT("port.rx_csum_bad", hw_csum_rx_error), 318 I40E_PF_STAT("port.rx_length_errors", stats.rx_length_errors), 319 I40E_PF_STAT("port.link_xon_rx", stats.link_xon_rx), 320 I40E_PF_STAT("port.link_xoff_rx", stats.link_xoff_rx), 321 I40E_PF_STAT("port.link_xon_tx", stats.link_xon_tx), 322 I40E_PF_STAT("port.link_xoff_tx", stats.link_xoff_tx), 323 I40E_PF_STAT("port.rx_size_64", stats.rx_size_64), 324 I40E_PF_STAT("port.rx_size_127", stats.rx_size_127), 325 I40E_PF_STAT("port.rx_size_255", stats.rx_size_255), 326 I40E_PF_STAT("port.rx_size_511", stats.rx_size_511), 327 I40E_PF_STAT("port.rx_size_1023", stats.rx_size_1023), 328 I40E_PF_STAT("port.rx_size_1522", stats.rx_size_1522), 329 I40E_PF_STAT("port.rx_size_big", stats.rx_size_big), 330 I40E_PF_STAT("port.tx_size_64", stats.tx_size_64), 331 I40E_PF_STAT("port.tx_size_127", stats.tx_size_127), 332 I40E_PF_STAT("port.tx_size_255", stats.tx_size_255), 333 I40E_PF_STAT("port.tx_size_511", stats.tx_size_511), 334 I40E_PF_STAT("port.tx_size_1023", stats.tx_size_1023), 335 I40E_PF_STAT("port.tx_size_1522", stats.tx_size_1522), 336 I40E_PF_STAT("port.tx_size_big", stats.tx_size_big), 337 I40E_PF_STAT("port.rx_undersize", stats.rx_undersize), 338 I40E_PF_STAT("port.rx_fragments", stats.rx_fragments), 339 I40E_PF_STAT("port.rx_oversize", stats.rx_oversize), 340 I40E_PF_STAT("port.rx_jabber", stats.rx_jabber), 341 I40E_PF_STAT("port.VF_admin_queue_requests", vf_aq_requests), 342 I40E_PF_STAT("port.arq_overflows", arq_overflows), 343 I40E_PF_STAT("port.tx_hwtstamp_timeouts", tx_hwtstamp_timeouts), 344 I40E_PF_STAT("port.rx_hwtstamp_cleared", rx_hwtstamp_cleared), 345 I40E_PF_STAT("port.tx_hwtstamp_skipped", tx_hwtstamp_skipped), 346 I40E_PF_STAT("port.fdir_flush_cnt", fd_flush_cnt), 347 I40E_PF_STAT("port.fdir_atr_match", stats.fd_atr_match), 348 I40E_PF_STAT("port.fdir_atr_tunnel_match", stats.fd_atr_tunnel_match), 349 I40E_PF_STAT("port.fdir_atr_status", stats.fd_atr_status), 350 I40E_PF_STAT("port.fdir_sb_match", stats.fd_sb_match), 351 I40E_PF_STAT("port.fdir_sb_status", stats.fd_sb_status), 352 353 /* LPI stats */ 354 I40E_PF_STAT("port.tx_lpi_status", stats.tx_lpi_status), 355 I40E_PF_STAT("port.rx_lpi_status", stats.rx_lpi_status), 356 I40E_PF_STAT("port.tx_lpi_count", stats.tx_lpi_count), 357 I40E_PF_STAT("port.rx_lpi_count", stats.rx_lpi_count), 358 }; 359 360 struct i40e_pfc_stats { 361 u64 priority_xon_rx; 362 u64 priority_xoff_rx; 363 u64 priority_xon_tx; 364 u64 priority_xoff_tx; 365 u64 priority_xon_2_xoff; 366 }; 367 368 static const struct i40e_stats i40e_gstrings_pfc_stats[] = { 369 I40E_PFC_STAT("port.tx_priority_%u_xon_tx", priority_xon_tx), 370 I40E_PFC_STAT("port.tx_priority_%u_xoff_tx", priority_xoff_tx), 371 I40E_PFC_STAT("port.rx_priority_%u_xon_rx", priority_xon_rx), 372 I40E_PFC_STAT("port.rx_priority_%u_xoff_rx", priority_xoff_rx), 373 I40E_PFC_STAT("port.rx_priority_%u_xon_2_xoff", priority_xon_2_xoff), 374 }; 375 376 #define I40E_NETDEV_STATS_LEN ARRAY_SIZE(i40e_gstrings_net_stats) 377 378 #define I40E_MISC_STATS_LEN ARRAY_SIZE(i40e_gstrings_misc_stats) 379 380 #define I40E_VSI_STATS_LEN (I40E_NETDEV_STATS_LEN + I40E_MISC_STATS_LEN) 381 382 #define I40E_PFC_STATS_LEN (ARRAY_SIZE(i40e_gstrings_pfc_stats) * \ 383 I40E_MAX_USER_PRIORITY) 384 385 #define I40E_VEB_STATS_LEN (ARRAY_SIZE(i40e_gstrings_veb_stats) + \ 386 (ARRAY_SIZE(i40e_gstrings_veb_tc_stats) * \ 387 I40E_MAX_TRAFFIC_CLASS)) 388 389 #define I40E_GLOBAL_STATS_LEN ARRAY_SIZE(i40e_gstrings_stats) 390 391 #define I40E_PF_STATS_LEN (I40E_GLOBAL_STATS_LEN + \ 392 I40E_PFC_STATS_LEN + \ 393 I40E_VEB_STATS_LEN + \ 394 I40E_VSI_STATS_LEN) 395 396 /* Length of stats for a single queue */ 397 #define I40E_QUEUE_STATS_LEN ARRAY_SIZE(i40e_gstrings_queue_stats) 398 399 enum i40e_ethtool_test_id { 400 I40E_ETH_TEST_REG = 0, 401 I40E_ETH_TEST_EEPROM, 402 I40E_ETH_TEST_INTR, 403 I40E_ETH_TEST_LINK, 404 }; 405 406 static const char i40e_gstrings_test[][ETH_GSTRING_LEN] = { 407 "Register test (offline)", 408 "Eeprom test (offline)", 409 "Interrupt test (offline)", 410 "Link test (on/offline)" 411 }; 412 413 #define I40E_TEST_LEN (sizeof(i40e_gstrings_test) / ETH_GSTRING_LEN) 414 415 struct i40e_priv_flags { 416 char flag_string[ETH_GSTRING_LEN]; 417 u64 flag; 418 bool read_only; 419 }; 420 421 #define I40E_PRIV_FLAG(_name, _flag, _read_only) { \ 422 .flag_string = _name, \ 423 .flag = _flag, \ 424 .read_only = _read_only, \ 425 } 426 427 static const struct i40e_priv_flags i40e_gstrings_priv_flags[] = { 428 /* NOTE: MFP setting cannot be changed */ 429 I40E_PRIV_FLAG("MFP", I40E_FLAG_MFP_ENABLED, 1), 430 I40E_PRIV_FLAG("LinkPolling", I40E_FLAG_LINK_POLLING_ENABLED, 0), 431 I40E_PRIV_FLAG("flow-director-atr", I40E_FLAG_FD_ATR_ENABLED, 0), 432 I40E_PRIV_FLAG("veb-stats", I40E_FLAG_VEB_STATS_ENABLED, 0), 433 I40E_PRIV_FLAG("hw-atr-eviction", I40E_FLAG_HW_ATR_EVICT_ENABLED, 0), 434 I40E_PRIV_FLAG("link-down-on-close", 435 I40E_FLAG_LINK_DOWN_ON_CLOSE_ENABLED, 0), 436 I40E_PRIV_FLAG("legacy-rx", I40E_FLAG_LEGACY_RX, 0), 437 I40E_PRIV_FLAG("disable-source-pruning", 438 I40E_FLAG_SOURCE_PRUNING_DISABLED, 0), 439 I40E_PRIV_FLAG("disable-fw-lldp", I40E_FLAG_DISABLE_FW_LLDP, 0), 440 }; 441 442 #define I40E_PRIV_FLAGS_STR_LEN ARRAY_SIZE(i40e_gstrings_priv_flags) 443 444 /* Private flags with a global effect, restricted to PF 0 */ 445 static const struct i40e_priv_flags i40e_gl_gstrings_priv_flags[] = { 446 I40E_PRIV_FLAG("vf-true-promisc-support", 447 I40E_FLAG_TRUE_PROMISC_SUPPORT, 0), 448 }; 449 450 #define I40E_GL_PRIV_FLAGS_STR_LEN ARRAY_SIZE(i40e_gl_gstrings_priv_flags) 451 452 /** 453 * i40e_partition_setting_complaint - generic complaint for MFP restriction 454 * @pf: the PF struct 455 **/ 456 static void i40e_partition_setting_complaint(struct i40e_pf *pf) 457 { 458 dev_info(&pf->pdev->dev, 459 "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"); 460 } 461 462 /** 463 * i40e_phy_type_to_ethtool - convert the phy_types to ethtool link modes 464 * @pf: PF struct with phy_types 465 * @ks: ethtool link ksettings struct to fill out 466 * 467 **/ 468 static void i40e_phy_type_to_ethtool(struct i40e_pf *pf, 469 struct ethtool_link_ksettings *ks) 470 { 471 struct i40e_link_status *hw_link_info = &pf->hw.phy.link_info; 472 u64 phy_types = pf->hw.phy.phy_types; 473 474 ethtool_link_ksettings_zero_link_mode(ks, supported); 475 ethtool_link_ksettings_zero_link_mode(ks, advertising); 476 477 if (phy_types & I40E_CAP_PHY_TYPE_SGMII) { 478 ethtool_link_ksettings_add_link_mode(ks, supported, 479 1000baseT_Full); 480 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_1GB) 481 ethtool_link_ksettings_add_link_mode(ks, advertising, 482 1000baseT_Full); 483 if (pf->hw_features & I40E_HW_100M_SGMII_CAPABLE) { 484 ethtool_link_ksettings_add_link_mode(ks, supported, 485 100baseT_Full); 486 ethtool_link_ksettings_add_link_mode(ks, advertising, 487 100baseT_Full); 488 } 489 } 490 if (phy_types & I40E_CAP_PHY_TYPE_XAUI || 491 phy_types & I40E_CAP_PHY_TYPE_XFI || 492 phy_types & I40E_CAP_PHY_TYPE_SFI || 493 phy_types & I40E_CAP_PHY_TYPE_10GBASE_SFPP_CU || 494 phy_types & I40E_CAP_PHY_TYPE_10GBASE_AOC) { 495 ethtool_link_ksettings_add_link_mode(ks, supported, 496 10000baseT_Full); 497 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_10GB) 498 ethtool_link_ksettings_add_link_mode(ks, advertising, 499 10000baseT_Full); 500 } 501 if (phy_types & I40E_CAP_PHY_TYPE_10GBASE_T) { 502 ethtool_link_ksettings_add_link_mode(ks, supported, 503 10000baseT_Full); 504 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_10GB) 505 ethtool_link_ksettings_add_link_mode(ks, advertising, 506 10000baseT_Full); 507 } 508 if (phy_types & I40E_CAP_PHY_TYPE_XLAUI || 509 phy_types & I40E_CAP_PHY_TYPE_XLPPI || 510 phy_types & I40E_CAP_PHY_TYPE_40GBASE_AOC) 511 ethtool_link_ksettings_add_link_mode(ks, supported, 512 40000baseCR4_Full); 513 if (phy_types & I40E_CAP_PHY_TYPE_40GBASE_CR4_CU || 514 phy_types & I40E_CAP_PHY_TYPE_40GBASE_CR4) { 515 ethtool_link_ksettings_add_link_mode(ks, supported, 516 40000baseCR4_Full); 517 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_40GB) 518 ethtool_link_ksettings_add_link_mode(ks, advertising, 519 40000baseCR4_Full); 520 } 521 if (phy_types & I40E_CAP_PHY_TYPE_100BASE_TX) { 522 ethtool_link_ksettings_add_link_mode(ks, supported, 523 100baseT_Full); 524 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_100MB) 525 ethtool_link_ksettings_add_link_mode(ks, advertising, 526 100baseT_Full); 527 } 528 if (phy_types & I40E_CAP_PHY_TYPE_1000BASE_T) { 529 ethtool_link_ksettings_add_link_mode(ks, supported, 530 1000baseT_Full); 531 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_1GB) 532 ethtool_link_ksettings_add_link_mode(ks, advertising, 533 1000baseT_Full); 534 } 535 if (phy_types & I40E_CAP_PHY_TYPE_40GBASE_SR4) 536 ethtool_link_ksettings_add_link_mode(ks, supported, 537 40000baseSR4_Full); 538 if (phy_types & I40E_CAP_PHY_TYPE_40GBASE_LR4) 539 ethtool_link_ksettings_add_link_mode(ks, supported, 540 40000baseLR4_Full); 541 if (phy_types & I40E_CAP_PHY_TYPE_40GBASE_KR4) { 542 ethtool_link_ksettings_add_link_mode(ks, supported, 543 40000baseLR4_Full); 544 ethtool_link_ksettings_add_link_mode(ks, advertising, 545 40000baseLR4_Full); 546 } 547 if (phy_types & I40E_CAP_PHY_TYPE_20GBASE_KR2) { 548 ethtool_link_ksettings_add_link_mode(ks, supported, 549 20000baseKR2_Full); 550 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_20GB) 551 ethtool_link_ksettings_add_link_mode(ks, advertising, 552 20000baseKR2_Full); 553 } 554 if (phy_types & I40E_CAP_PHY_TYPE_10GBASE_KX4) { 555 ethtool_link_ksettings_add_link_mode(ks, supported, 556 10000baseKX4_Full); 557 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_10GB) 558 ethtool_link_ksettings_add_link_mode(ks, advertising, 559 10000baseKX4_Full); 560 } 561 if (phy_types & I40E_CAP_PHY_TYPE_10GBASE_KR && 562 !(pf->hw_features & I40E_HW_HAVE_CRT_RETIMER)) { 563 ethtool_link_ksettings_add_link_mode(ks, supported, 564 10000baseKR_Full); 565 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_10GB) 566 ethtool_link_ksettings_add_link_mode(ks, advertising, 567 10000baseKR_Full); 568 } 569 if (phy_types & I40E_CAP_PHY_TYPE_1000BASE_KX && 570 !(pf->hw_features & I40E_HW_HAVE_CRT_RETIMER)) { 571 ethtool_link_ksettings_add_link_mode(ks, supported, 572 1000baseKX_Full); 573 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_1GB) 574 ethtool_link_ksettings_add_link_mode(ks, advertising, 575 1000baseKX_Full); 576 } 577 /* need to add 25G PHY types */ 578 if (phy_types & I40E_CAP_PHY_TYPE_25GBASE_KR) { 579 ethtool_link_ksettings_add_link_mode(ks, supported, 580 25000baseKR_Full); 581 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_25GB) 582 ethtool_link_ksettings_add_link_mode(ks, advertising, 583 25000baseKR_Full); 584 } 585 if (phy_types & I40E_CAP_PHY_TYPE_25GBASE_CR) { 586 ethtool_link_ksettings_add_link_mode(ks, supported, 587 25000baseCR_Full); 588 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_25GB) 589 ethtool_link_ksettings_add_link_mode(ks, advertising, 590 25000baseCR_Full); 591 } 592 if (phy_types & I40E_CAP_PHY_TYPE_25GBASE_SR || 593 phy_types & I40E_CAP_PHY_TYPE_25GBASE_LR) { 594 ethtool_link_ksettings_add_link_mode(ks, supported, 595 25000baseSR_Full); 596 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_25GB) 597 ethtool_link_ksettings_add_link_mode(ks, advertising, 598 25000baseSR_Full); 599 } 600 if (phy_types & I40E_CAP_PHY_TYPE_25GBASE_AOC || 601 phy_types & I40E_CAP_PHY_TYPE_25GBASE_ACC) { 602 ethtool_link_ksettings_add_link_mode(ks, supported, 603 25000baseCR_Full); 604 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_25GB) 605 ethtool_link_ksettings_add_link_mode(ks, advertising, 606 25000baseCR_Full); 607 } 608 /* need to add new 10G PHY types */ 609 if (phy_types & I40E_CAP_PHY_TYPE_10GBASE_CR1 || 610 phy_types & I40E_CAP_PHY_TYPE_10GBASE_CR1_CU) { 611 ethtool_link_ksettings_add_link_mode(ks, supported, 612 10000baseCR_Full); 613 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_10GB) 614 ethtool_link_ksettings_add_link_mode(ks, advertising, 615 10000baseCR_Full); 616 } 617 if (phy_types & I40E_CAP_PHY_TYPE_10GBASE_SR) { 618 ethtool_link_ksettings_add_link_mode(ks, supported, 619 10000baseSR_Full); 620 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_10GB) 621 ethtool_link_ksettings_add_link_mode(ks, advertising, 622 10000baseSR_Full); 623 } 624 if (phy_types & I40E_CAP_PHY_TYPE_10GBASE_LR) { 625 ethtool_link_ksettings_add_link_mode(ks, supported, 626 10000baseLR_Full); 627 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_10GB) 628 ethtool_link_ksettings_add_link_mode(ks, advertising, 629 10000baseLR_Full); 630 } 631 if (phy_types & I40E_CAP_PHY_TYPE_1000BASE_SX || 632 phy_types & I40E_CAP_PHY_TYPE_1000BASE_LX || 633 phy_types & I40E_CAP_PHY_TYPE_1000BASE_T_OPTICAL) { 634 ethtool_link_ksettings_add_link_mode(ks, supported, 635 1000baseX_Full); 636 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_1GB) 637 ethtool_link_ksettings_add_link_mode(ks, advertising, 638 1000baseX_Full); 639 } 640 /* Autoneg PHY types */ 641 if (phy_types & I40E_CAP_PHY_TYPE_SGMII || 642 phy_types & I40E_CAP_PHY_TYPE_40GBASE_KR4 || 643 phy_types & I40E_CAP_PHY_TYPE_40GBASE_CR4_CU || 644 phy_types & I40E_CAP_PHY_TYPE_40GBASE_CR4 || 645 phy_types & I40E_CAP_PHY_TYPE_25GBASE_SR || 646 phy_types & I40E_CAP_PHY_TYPE_25GBASE_LR || 647 phy_types & I40E_CAP_PHY_TYPE_25GBASE_KR || 648 phy_types & I40E_CAP_PHY_TYPE_25GBASE_CR || 649 phy_types & I40E_CAP_PHY_TYPE_20GBASE_KR2 || 650 phy_types & I40E_CAP_PHY_TYPE_10GBASE_T || 651 phy_types & I40E_CAP_PHY_TYPE_10GBASE_SR || 652 phy_types & I40E_CAP_PHY_TYPE_10GBASE_LR || 653 phy_types & I40E_CAP_PHY_TYPE_10GBASE_KX4 || 654 phy_types & I40E_CAP_PHY_TYPE_10GBASE_KR || 655 phy_types & I40E_CAP_PHY_TYPE_10GBASE_CR1_CU || 656 phy_types & I40E_CAP_PHY_TYPE_10GBASE_CR1 || 657 phy_types & I40E_CAP_PHY_TYPE_1000BASE_T_OPTICAL || 658 phy_types & I40E_CAP_PHY_TYPE_1000BASE_T || 659 phy_types & I40E_CAP_PHY_TYPE_1000BASE_SX || 660 phy_types & I40E_CAP_PHY_TYPE_1000BASE_LX || 661 phy_types & I40E_CAP_PHY_TYPE_1000BASE_KX || 662 phy_types & I40E_CAP_PHY_TYPE_100BASE_TX) { 663 ethtool_link_ksettings_add_link_mode(ks, supported, 664 Autoneg); 665 ethtool_link_ksettings_add_link_mode(ks, advertising, 666 Autoneg); 667 } 668 } 669 670 /** 671 * i40e_get_settings_link_up - Get the Link settings for when link is up 672 * @hw: hw structure 673 * @ks: ethtool ksettings to fill in 674 * @netdev: network interface device structure 675 * @pf: pointer to physical function struct 676 **/ 677 static void i40e_get_settings_link_up(struct i40e_hw *hw, 678 struct ethtool_link_ksettings *ks, 679 struct net_device *netdev, 680 struct i40e_pf *pf) 681 { 682 struct i40e_link_status *hw_link_info = &hw->phy.link_info; 683 struct ethtool_link_ksettings cap_ksettings; 684 u32 link_speed = hw_link_info->link_speed; 685 686 /* Initialize supported and advertised settings based on phy settings */ 687 switch (hw_link_info->phy_type) { 688 case I40E_PHY_TYPE_40GBASE_CR4: 689 case I40E_PHY_TYPE_40GBASE_CR4_CU: 690 ethtool_link_ksettings_add_link_mode(ks, supported, Autoneg); 691 ethtool_link_ksettings_add_link_mode(ks, supported, 692 40000baseCR4_Full); 693 ethtool_link_ksettings_add_link_mode(ks, advertising, Autoneg); 694 ethtool_link_ksettings_add_link_mode(ks, advertising, 695 40000baseCR4_Full); 696 break; 697 case I40E_PHY_TYPE_XLAUI: 698 case I40E_PHY_TYPE_XLPPI: 699 case I40E_PHY_TYPE_40GBASE_AOC: 700 ethtool_link_ksettings_add_link_mode(ks, supported, 701 40000baseCR4_Full); 702 break; 703 case I40E_PHY_TYPE_40GBASE_SR4: 704 ethtool_link_ksettings_add_link_mode(ks, supported, 705 40000baseSR4_Full); 706 break; 707 case I40E_PHY_TYPE_40GBASE_LR4: 708 ethtool_link_ksettings_add_link_mode(ks, supported, 709 40000baseLR4_Full); 710 break; 711 case I40E_PHY_TYPE_25GBASE_SR: 712 case I40E_PHY_TYPE_25GBASE_LR: 713 case I40E_PHY_TYPE_10GBASE_SR: 714 case I40E_PHY_TYPE_10GBASE_LR: 715 case I40E_PHY_TYPE_1000BASE_SX: 716 case I40E_PHY_TYPE_1000BASE_LX: 717 ethtool_link_ksettings_add_link_mode(ks, supported, Autoneg); 718 ethtool_link_ksettings_add_link_mode(ks, advertising, Autoneg); 719 ethtool_link_ksettings_add_link_mode(ks, supported, 720 25000baseSR_Full); 721 ethtool_link_ksettings_add_link_mode(ks, advertising, 722 25000baseSR_Full); 723 ethtool_link_ksettings_add_link_mode(ks, supported, 724 10000baseSR_Full); 725 ethtool_link_ksettings_add_link_mode(ks, advertising, 726 10000baseSR_Full); 727 ethtool_link_ksettings_add_link_mode(ks, supported, 728 10000baseLR_Full); 729 ethtool_link_ksettings_add_link_mode(ks, advertising, 730 10000baseLR_Full); 731 ethtool_link_ksettings_add_link_mode(ks, supported, 732 1000baseX_Full); 733 ethtool_link_ksettings_add_link_mode(ks, advertising, 734 1000baseX_Full); 735 ethtool_link_ksettings_add_link_mode(ks, supported, 736 10000baseT_Full); 737 if (hw_link_info->module_type[2] & 738 I40E_MODULE_TYPE_1000BASE_SX || 739 hw_link_info->module_type[2] & 740 I40E_MODULE_TYPE_1000BASE_LX) { 741 ethtool_link_ksettings_add_link_mode(ks, supported, 742 1000baseT_Full); 743 if (hw_link_info->requested_speeds & 744 I40E_LINK_SPEED_1GB) 745 ethtool_link_ksettings_add_link_mode( 746 ks, advertising, 1000baseT_Full); 747 } 748 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_10GB) 749 ethtool_link_ksettings_add_link_mode(ks, advertising, 750 10000baseT_Full); 751 break; 752 case I40E_PHY_TYPE_10GBASE_T: 753 case I40E_PHY_TYPE_1000BASE_T: 754 case I40E_PHY_TYPE_100BASE_TX: 755 ethtool_link_ksettings_add_link_mode(ks, supported, Autoneg); 756 ethtool_link_ksettings_add_link_mode(ks, supported, 757 10000baseT_Full); 758 ethtool_link_ksettings_add_link_mode(ks, supported, 759 1000baseT_Full); 760 ethtool_link_ksettings_add_link_mode(ks, supported, 761 100baseT_Full); 762 ethtool_link_ksettings_add_link_mode(ks, advertising, Autoneg); 763 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_10GB) 764 ethtool_link_ksettings_add_link_mode(ks, advertising, 765 10000baseT_Full); 766 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_1GB) 767 ethtool_link_ksettings_add_link_mode(ks, advertising, 768 1000baseT_Full); 769 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_100MB) 770 ethtool_link_ksettings_add_link_mode(ks, advertising, 771 100baseT_Full); 772 break; 773 case I40E_PHY_TYPE_1000BASE_T_OPTICAL: 774 ethtool_link_ksettings_add_link_mode(ks, supported, Autoneg); 775 ethtool_link_ksettings_add_link_mode(ks, supported, 776 1000baseT_Full); 777 ethtool_link_ksettings_add_link_mode(ks, advertising, Autoneg); 778 ethtool_link_ksettings_add_link_mode(ks, advertising, 779 1000baseT_Full); 780 break; 781 case I40E_PHY_TYPE_10GBASE_CR1_CU: 782 case I40E_PHY_TYPE_10GBASE_CR1: 783 ethtool_link_ksettings_add_link_mode(ks, supported, Autoneg); 784 ethtool_link_ksettings_add_link_mode(ks, supported, 785 10000baseT_Full); 786 ethtool_link_ksettings_add_link_mode(ks, advertising, Autoneg); 787 ethtool_link_ksettings_add_link_mode(ks, advertising, 788 10000baseT_Full); 789 break; 790 case I40E_PHY_TYPE_XAUI: 791 case I40E_PHY_TYPE_XFI: 792 case I40E_PHY_TYPE_SFI: 793 case I40E_PHY_TYPE_10GBASE_SFPP_CU: 794 case I40E_PHY_TYPE_10GBASE_AOC: 795 ethtool_link_ksettings_add_link_mode(ks, supported, 796 10000baseT_Full); 797 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_10GB) 798 ethtool_link_ksettings_add_link_mode(ks, advertising, 799 10000baseT_Full); 800 break; 801 case I40E_PHY_TYPE_SGMII: 802 ethtool_link_ksettings_add_link_mode(ks, supported, Autoneg); 803 ethtool_link_ksettings_add_link_mode(ks, supported, 804 1000baseT_Full); 805 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_1GB) 806 ethtool_link_ksettings_add_link_mode(ks, advertising, 807 1000baseT_Full); 808 if (pf->hw_features & I40E_HW_100M_SGMII_CAPABLE) { 809 ethtool_link_ksettings_add_link_mode(ks, supported, 810 100baseT_Full); 811 if (hw_link_info->requested_speeds & 812 I40E_LINK_SPEED_100MB) 813 ethtool_link_ksettings_add_link_mode( 814 ks, advertising, 100baseT_Full); 815 } 816 break; 817 case I40E_PHY_TYPE_40GBASE_KR4: 818 case I40E_PHY_TYPE_25GBASE_KR: 819 case I40E_PHY_TYPE_20GBASE_KR2: 820 case I40E_PHY_TYPE_10GBASE_KR: 821 case I40E_PHY_TYPE_10GBASE_KX4: 822 case I40E_PHY_TYPE_1000BASE_KX: 823 ethtool_link_ksettings_add_link_mode(ks, supported, 824 40000baseKR4_Full); 825 ethtool_link_ksettings_add_link_mode(ks, supported, 826 25000baseKR_Full); 827 ethtool_link_ksettings_add_link_mode(ks, supported, 828 20000baseKR2_Full); 829 ethtool_link_ksettings_add_link_mode(ks, supported, 830 10000baseKR_Full); 831 ethtool_link_ksettings_add_link_mode(ks, supported, 832 10000baseKX4_Full); 833 ethtool_link_ksettings_add_link_mode(ks, supported, 834 1000baseKX_Full); 835 ethtool_link_ksettings_add_link_mode(ks, supported, Autoneg); 836 ethtool_link_ksettings_add_link_mode(ks, advertising, 837 40000baseKR4_Full); 838 ethtool_link_ksettings_add_link_mode(ks, advertising, 839 25000baseKR_Full); 840 ethtool_link_ksettings_add_link_mode(ks, advertising, 841 20000baseKR2_Full); 842 ethtool_link_ksettings_add_link_mode(ks, advertising, 843 10000baseKR_Full); 844 ethtool_link_ksettings_add_link_mode(ks, advertising, 845 10000baseKX4_Full); 846 ethtool_link_ksettings_add_link_mode(ks, advertising, 847 1000baseKX_Full); 848 ethtool_link_ksettings_add_link_mode(ks, advertising, Autoneg); 849 break; 850 case I40E_PHY_TYPE_25GBASE_CR: 851 ethtool_link_ksettings_add_link_mode(ks, supported, Autoneg); 852 ethtool_link_ksettings_add_link_mode(ks, advertising, Autoneg); 853 ethtool_link_ksettings_add_link_mode(ks, supported, 854 25000baseCR_Full); 855 ethtool_link_ksettings_add_link_mode(ks, advertising, 856 25000baseCR_Full); 857 break; 858 case I40E_PHY_TYPE_25GBASE_AOC: 859 case I40E_PHY_TYPE_25GBASE_ACC: 860 ethtool_link_ksettings_add_link_mode(ks, supported, Autoneg); 861 ethtool_link_ksettings_add_link_mode(ks, advertising, Autoneg); 862 ethtool_link_ksettings_add_link_mode(ks, supported, 863 25000baseCR_Full); 864 865 ethtool_link_ksettings_add_link_mode(ks, advertising, 866 25000baseCR_Full); 867 ethtool_link_ksettings_add_link_mode(ks, supported, 868 10000baseCR_Full); 869 ethtool_link_ksettings_add_link_mode(ks, advertising, 870 10000baseCR_Full); 871 break; 872 default: 873 /* if we got here and link is up something bad is afoot */ 874 netdev_info(netdev, 875 "WARNING: Link is up but PHY type 0x%x is not recognized.\n", 876 hw_link_info->phy_type); 877 } 878 879 /* Now that we've worked out everything that could be supported by the 880 * current PHY type, get what is supported by the NVM and intersect 881 * them to get what is truly supported 882 */ 883 memset(&cap_ksettings, 0, sizeof(struct ethtool_link_ksettings)); 884 i40e_phy_type_to_ethtool(pf, &cap_ksettings); 885 ethtool_intersect_link_masks(ks, &cap_ksettings); 886 887 /* Set speed and duplex */ 888 switch (link_speed) { 889 case I40E_LINK_SPEED_40GB: 890 ks->base.speed = SPEED_40000; 891 break; 892 case I40E_LINK_SPEED_25GB: 893 ks->base.speed = SPEED_25000; 894 break; 895 case I40E_LINK_SPEED_20GB: 896 ks->base.speed = SPEED_20000; 897 break; 898 case I40E_LINK_SPEED_10GB: 899 ks->base.speed = SPEED_10000; 900 break; 901 case I40E_LINK_SPEED_1GB: 902 ks->base.speed = SPEED_1000; 903 break; 904 case I40E_LINK_SPEED_100MB: 905 ks->base.speed = SPEED_100; 906 break; 907 default: 908 break; 909 } 910 ks->base.duplex = DUPLEX_FULL; 911 } 912 913 /** 914 * i40e_get_settings_link_down - Get the Link settings for when link is down 915 * @hw: hw structure 916 * @ks: ethtool ksettings to fill in 917 * @pf: pointer to physical function struct 918 * 919 * Reports link settings that can be determined when link is down 920 **/ 921 static void i40e_get_settings_link_down(struct i40e_hw *hw, 922 struct ethtool_link_ksettings *ks, 923 struct i40e_pf *pf) 924 { 925 /* link is down and the driver needs to fall back on 926 * supported phy types to figure out what info to display 927 */ 928 i40e_phy_type_to_ethtool(pf, ks); 929 930 /* With no link speed and duplex are unknown */ 931 ks->base.speed = SPEED_UNKNOWN; 932 ks->base.duplex = DUPLEX_UNKNOWN; 933 } 934 935 /** 936 * i40e_get_link_ksettings - Get Link Speed and Duplex settings 937 * @netdev: network interface device structure 938 * @ks: ethtool ksettings 939 * 940 * Reports speed/duplex settings based on media_type 941 **/ 942 static int i40e_get_link_ksettings(struct net_device *netdev, 943 struct ethtool_link_ksettings *ks) 944 { 945 struct i40e_netdev_priv *np = netdev_priv(netdev); 946 struct i40e_pf *pf = np->vsi->back; 947 struct i40e_hw *hw = &pf->hw; 948 struct i40e_link_status *hw_link_info = &hw->phy.link_info; 949 bool link_up = hw_link_info->link_info & I40E_AQ_LINK_UP; 950 951 ethtool_link_ksettings_zero_link_mode(ks, supported); 952 ethtool_link_ksettings_zero_link_mode(ks, advertising); 953 954 if (link_up) 955 i40e_get_settings_link_up(hw, ks, netdev, pf); 956 else 957 i40e_get_settings_link_down(hw, ks, pf); 958 959 /* Now set the settings that don't rely on link being up/down */ 960 /* Set autoneg settings */ 961 ks->base.autoneg = ((hw_link_info->an_info & I40E_AQ_AN_COMPLETED) ? 962 AUTONEG_ENABLE : AUTONEG_DISABLE); 963 964 /* Set media type settings */ 965 switch (hw->phy.media_type) { 966 case I40E_MEDIA_TYPE_BACKPLANE: 967 ethtool_link_ksettings_add_link_mode(ks, supported, Autoneg); 968 ethtool_link_ksettings_add_link_mode(ks, supported, Backplane); 969 ethtool_link_ksettings_add_link_mode(ks, advertising, Autoneg); 970 ethtool_link_ksettings_add_link_mode(ks, advertising, 971 Backplane); 972 ks->base.port = PORT_NONE; 973 break; 974 case I40E_MEDIA_TYPE_BASET: 975 ethtool_link_ksettings_add_link_mode(ks, supported, TP); 976 ethtool_link_ksettings_add_link_mode(ks, advertising, TP); 977 ks->base.port = PORT_TP; 978 break; 979 case I40E_MEDIA_TYPE_DA: 980 case I40E_MEDIA_TYPE_CX4: 981 ethtool_link_ksettings_add_link_mode(ks, supported, FIBRE); 982 ethtool_link_ksettings_add_link_mode(ks, advertising, FIBRE); 983 ks->base.port = PORT_DA; 984 break; 985 case I40E_MEDIA_TYPE_FIBER: 986 ethtool_link_ksettings_add_link_mode(ks, supported, FIBRE); 987 ks->base.port = PORT_FIBRE; 988 break; 989 case I40E_MEDIA_TYPE_UNKNOWN: 990 default: 991 ks->base.port = PORT_OTHER; 992 break; 993 } 994 995 /* Set flow control settings */ 996 ethtool_link_ksettings_add_link_mode(ks, supported, Pause); 997 998 switch (hw->fc.requested_mode) { 999 case I40E_FC_FULL: 1000 ethtool_link_ksettings_add_link_mode(ks, advertising, Pause); 1001 break; 1002 case I40E_FC_TX_PAUSE: 1003 ethtool_link_ksettings_add_link_mode(ks, advertising, 1004 Asym_Pause); 1005 break; 1006 case I40E_FC_RX_PAUSE: 1007 ethtool_link_ksettings_add_link_mode(ks, advertising, Pause); 1008 ethtool_link_ksettings_add_link_mode(ks, advertising, 1009 Asym_Pause); 1010 break; 1011 default: 1012 ethtool_link_ksettings_del_link_mode(ks, advertising, Pause); 1013 ethtool_link_ksettings_del_link_mode(ks, advertising, 1014 Asym_Pause); 1015 break; 1016 } 1017 1018 return 0; 1019 } 1020 1021 /** 1022 * i40e_set_link_ksettings - Set Speed and Duplex 1023 * @netdev: network interface device structure 1024 * @ks: ethtool ksettings 1025 * 1026 * Set speed/duplex per media_types advertised/forced 1027 **/ 1028 static int i40e_set_link_ksettings(struct net_device *netdev, 1029 const struct ethtool_link_ksettings *ks) 1030 { 1031 struct i40e_netdev_priv *np = netdev_priv(netdev); 1032 struct i40e_aq_get_phy_abilities_resp abilities; 1033 struct ethtool_link_ksettings safe_ks; 1034 struct ethtool_link_ksettings copy_ks; 1035 struct i40e_aq_set_phy_config config; 1036 struct i40e_pf *pf = np->vsi->back; 1037 struct i40e_vsi *vsi = np->vsi; 1038 struct i40e_hw *hw = &pf->hw; 1039 bool autoneg_changed = false; 1040 i40e_status status = 0; 1041 int timeout = 50; 1042 int err = 0; 1043 u8 autoneg; 1044 1045 /* Changing port settings is not supported if this isn't the 1046 * port's controlling PF 1047 */ 1048 if (hw->partition_id != 1) { 1049 i40e_partition_setting_complaint(pf); 1050 return -EOPNOTSUPP; 1051 } 1052 if (vsi != pf->vsi[pf->lan_vsi]) 1053 return -EOPNOTSUPP; 1054 if (hw->phy.media_type != I40E_MEDIA_TYPE_BASET && 1055 hw->phy.media_type != I40E_MEDIA_TYPE_FIBER && 1056 hw->phy.media_type != I40E_MEDIA_TYPE_BACKPLANE && 1057 hw->phy.media_type != I40E_MEDIA_TYPE_DA && 1058 hw->phy.link_info.link_info & I40E_AQ_LINK_UP) 1059 return -EOPNOTSUPP; 1060 if (hw->device_id == I40E_DEV_ID_KX_B || 1061 hw->device_id == I40E_DEV_ID_KX_C || 1062 hw->device_id == I40E_DEV_ID_20G_KR2 || 1063 hw->device_id == I40E_DEV_ID_20G_KR2_A || 1064 hw->device_id == I40E_DEV_ID_25G_B || 1065 hw->device_id == I40E_DEV_ID_KX_X722) { 1066 netdev_info(netdev, "Changing settings is not supported on backplane.\n"); 1067 return -EOPNOTSUPP; 1068 } 1069 1070 /* copy the ksettings to copy_ks to avoid modifying the origin */ 1071 memcpy(©_ks, ks, sizeof(struct ethtool_link_ksettings)); 1072 1073 /* save autoneg out of ksettings */ 1074 autoneg = copy_ks.base.autoneg; 1075 1076 /* get our own copy of the bits to check against */ 1077 memset(&safe_ks, 0, sizeof(struct ethtool_link_ksettings)); 1078 safe_ks.base.cmd = copy_ks.base.cmd; 1079 safe_ks.base.link_mode_masks_nwords = 1080 copy_ks.base.link_mode_masks_nwords; 1081 i40e_get_link_ksettings(netdev, &safe_ks); 1082 1083 /* Get link modes supported by hardware and check against modes 1084 * requested by the user. Return an error if unsupported mode was set. 1085 */ 1086 if (!bitmap_subset(copy_ks.link_modes.advertising, 1087 safe_ks.link_modes.supported, 1088 __ETHTOOL_LINK_MODE_MASK_NBITS)) 1089 return -EINVAL; 1090 1091 /* set autoneg back to what it currently is */ 1092 copy_ks.base.autoneg = safe_ks.base.autoneg; 1093 1094 /* If copy_ks.base and safe_ks.base are not the same now, then they are 1095 * trying to set something that we do not support. 1096 */ 1097 if (memcmp(©_ks.base, &safe_ks.base, 1098 sizeof(struct ethtool_link_settings))) 1099 return -EOPNOTSUPP; 1100 1101 while (test_and_set_bit(__I40E_CONFIG_BUSY, pf->state)) { 1102 timeout--; 1103 if (!timeout) 1104 return -EBUSY; 1105 usleep_range(1000, 2000); 1106 } 1107 1108 /* Get the current phy config */ 1109 status = i40e_aq_get_phy_capabilities(hw, false, false, &abilities, 1110 NULL); 1111 if (status) { 1112 err = -EAGAIN; 1113 goto done; 1114 } 1115 1116 /* Copy abilities to config in case autoneg is not 1117 * set below 1118 */ 1119 memset(&config, 0, sizeof(struct i40e_aq_set_phy_config)); 1120 config.abilities = abilities.abilities; 1121 1122 /* Check autoneg */ 1123 if (autoneg == AUTONEG_ENABLE) { 1124 /* If autoneg was not already enabled */ 1125 if (!(hw->phy.link_info.an_info & I40E_AQ_AN_COMPLETED)) { 1126 /* If autoneg is not supported, return error */ 1127 if (!ethtool_link_ksettings_test_link_mode(&safe_ks, 1128 supported, 1129 Autoneg)) { 1130 netdev_info(netdev, "Autoneg not supported on this phy\n"); 1131 err = -EINVAL; 1132 goto done; 1133 } 1134 /* Autoneg is allowed to change */ 1135 config.abilities = abilities.abilities | 1136 I40E_AQ_PHY_ENABLE_AN; 1137 autoneg_changed = true; 1138 } 1139 } else { 1140 /* If autoneg is currently enabled */ 1141 if (hw->phy.link_info.an_info & I40E_AQ_AN_COMPLETED) { 1142 /* If autoneg is supported 10GBASE_T is the only PHY 1143 * that can disable it, so otherwise return error 1144 */ 1145 if (ethtool_link_ksettings_test_link_mode(&safe_ks, 1146 supported, 1147 Autoneg) && 1148 hw->phy.link_info.phy_type != 1149 I40E_PHY_TYPE_10GBASE_T) { 1150 netdev_info(netdev, "Autoneg cannot be disabled on this phy\n"); 1151 err = -EINVAL; 1152 goto done; 1153 } 1154 /* Autoneg is allowed to change */ 1155 config.abilities = abilities.abilities & 1156 ~I40E_AQ_PHY_ENABLE_AN; 1157 autoneg_changed = true; 1158 } 1159 } 1160 1161 if (ethtool_link_ksettings_test_link_mode(ks, advertising, 1162 100baseT_Full)) 1163 config.link_speed |= I40E_LINK_SPEED_100MB; 1164 if (ethtool_link_ksettings_test_link_mode(ks, advertising, 1165 1000baseT_Full) || 1166 ethtool_link_ksettings_test_link_mode(ks, advertising, 1167 1000baseX_Full) || 1168 ethtool_link_ksettings_test_link_mode(ks, advertising, 1169 1000baseKX_Full)) 1170 config.link_speed |= I40E_LINK_SPEED_1GB; 1171 if (ethtool_link_ksettings_test_link_mode(ks, advertising, 1172 10000baseT_Full) || 1173 ethtool_link_ksettings_test_link_mode(ks, advertising, 1174 10000baseKX4_Full) || 1175 ethtool_link_ksettings_test_link_mode(ks, advertising, 1176 10000baseKR_Full) || 1177 ethtool_link_ksettings_test_link_mode(ks, advertising, 1178 10000baseCR_Full) || 1179 ethtool_link_ksettings_test_link_mode(ks, advertising, 1180 10000baseSR_Full) || 1181 ethtool_link_ksettings_test_link_mode(ks, advertising, 1182 10000baseLR_Full)) 1183 config.link_speed |= I40E_LINK_SPEED_10GB; 1184 if (ethtool_link_ksettings_test_link_mode(ks, advertising, 1185 20000baseKR2_Full)) 1186 config.link_speed |= I40E_LINK_SPEED_20GB; 1187 if (ethtool_link_ksettings_test_link_mode(ks, advertising, 1188 25000baseCR_Full) || 1189 ethtool_link_ksettings_test_link_mode(ks, advertising, 1190 25000baseKR_Full) || 1191 ethtool_link_ksettings_test_link_mode(ks, advertising, 1192 25000baseSR_Full)) 1193 config.link_speed |= I40E_LINK_SPEED_25GB; 1194 if (ethtool_link_ksettings_test_link_mode(ks, advertising, 1195 40000baseKR4_Full) || 1196 ethtool_link_ksettings_test_link_mode(ks, advertising, 1197 40000baseCR4_Full) || 1198 ethtool_link_ksettings_test_link_mode(ks, advertising, 1199 40000baseSR4_Full) || 1200 ethtool_link_ksettings_test_link_mode(ks, advertising, 1201 40000baseLR4_Full)) 1202 config.link_speed |= I40E_LINK_SPEED_40GB; 1203 1204 /* If speed didn't get set, set it to what it currently is. 1205 * This is needed because if advertise is 0 (as it is when autoneg 1206 * is disabled) then speed won't get set. 1207 */ 1208 if (!config.link_speed) 1209 config.link_speed = abilities.link_speed; 1210 if (autoneg_changed || abilities.link_speed != config.link_speed) { 1211 /* copy over the rest of the abilities */ 1212 config.phy_type = abilities.phy_type; 1213 config.phy_type_ext = abilities.phy_type_ext; 1214 config.eee_capability = abilities.eee_capability; 1215 config.eeer = abilities.eeer_val; 1216 config.low_power_ctrl = abilities.d3_lpan; 1217 config.fec_config = abilities.fec_cfg_curr_mod_ext_info & 1218 I40E_AQ_PHY_FEC_CONFIG_MASK; 1219 1220 /* save the requested speeds */ 1221 hw->phy.link_info.requested_speeds = config.link_speed; 1222 /* set link and auto negotiation so changes take effect */ 1223 config.abilities |= I40E_AQ_PHY_ENABLE_ATOMIC_LINK; 1224 /* If link is up put link down */ 1225 if (hw->phy.link_info.link_info & I40E_AQ_LINK_UP) { 1226 /* Tell the OS link is going down, the link will go 1227 * back up when fw says it is ready asynchronously 1228 */ 1229 i40e_print_link_message(vsi, false); 1230 netif_carrier_off(netdev); 1231 netif_tx_stop_all_queues(netdev); 1232 } 1233 1234 /* make the aq call */ 1235 status = i40e_aq_set_phy_config(hw, &config, NULL); 1236 if (status) { 1237 netdev_info(netdev, 1238 "Set phy config failed, err %s aq_err %s\n", 1239 i40e_stat_str(hw, status), 1240 i40e_aq_str(hw, hw->aq.asq_last_status)); 1241 err = -EAGAIN; 1242 goto done; 1243 } 1244 1245 status = i40e_update_link_info(hw); 1246 if (status) 1247 netdev_dbg(netdev, 1248 "Updating link info failed with err %s aq_err %s\n", 1249 i40e_stat_str(hw, status), 1250 i40e_aq_str(hw, hw->aq.asq_last_status)); 1251 1252 } else { 1253 netdev_info(netdev, "Nothing changed, exiting without setting anything.\n"); 1254 } 1255 1256 done: 1257 clear_bit(__I40E_CONFIG_BUSY, pf->state); 1258 1259 return err; 1260 } 1261 1262 static int i40e_nway_reset(struct net_device *netdev) 1263 { 1264 /* restart autonegotiation */ 1265 struct i40e_netdev_priv *np = netdev_priv(netdev); 1266 struct i40e_pf *pf = np->vsi->back; 1267 struct i40e_hw *hw = &pf->hw; 1268 bool link_up = hw->phy.link_info.link_info & I40E_AQ_LINK_UP; 1269 i40e_status ret = 0; 1270 1271 ret = i40e_aq_set_link_restart_an(hw, link_up, NULL); 1272 if (ret) { 1273 netdev_info(netdev, "link restart failed, err %s aq_err %s\n", 1274 i40e_stat_str(hw, ret), 1275 i40e_aq_str(hw, hw->aq.asq_last_status)); 1276 return -EIO; 1277 } 1278 1279 return 0; 1280 } 1281 1282 /** 1283 * i40e_get_pauseparam - Get Flow Control status 1284 * @netdev: netdevice structure 1285 * @pause: buffer to return pause parameters 1286 * 1287 * Return tx/rx-pause status 1288 **/ 1289 static void i40e_get_pauseparam(struct net_device *netdev, 1290 struct ethtool_pauseparam *pause) 1291 { 1292 struct i40e_netdev_priv *np = netdev_priv(netdev); 1293 struct i40e_pf *pf = np->vsi->back; 1294 struct i40e_hw *hw = &pf->hw; 1295 struct i40e_link_status *hw_link_info = &hw->phy.link_info; 1296 struct i40e_dcbx_config *dcbx_cfg = &hw->local_dcbx_config; 1297 1298 pause->autoneg = 1299 ((hw_link_info->an_info & I40E_AQ_AN_COMPLETED) ? 1300 AUTONEG_ENABLE : AUTONEG_DISABLE); 1301 1302 /* PFC enabled so report LFC as off */ 1303 if (dcbx_cfg->pfc.pfcenable) { 1304 pause->rx_pause = 0; 1305 pause->tx_pause = 0; 1306 return; 1307 } 1308 1309 if (hw->fc.current_mode == I40E_FC_RX_PAUSE) { 1310 pause->rx_pause = 1; 1311 } else if (hw->fc.current_mode == I40E_FC_TX_PAUSE) { 1312 pause->tx_pause = 1; 1313 } else if (hw->fc.current_mode == I40E_FC_FULL) { 1314 pause->rx_pause = 1; 1315 pause->tx_pause = 1; 1316 } 1317 } 1318 1319 /** 1320 * i40e_set_pauseparam - Set Flow Control parameter 1321 * @netdev: network interface device structure 1322 * @pause: return tx/rx flow control status 1323 **/ 1324 static int i40e_set_pauseparam(struct net_device *netdev, 1325 struct ethtool_pauseparam *pause) 1326 { 1327 struct i40e_netdev_priv *np = netdev_priv(netdev); 1328 struct i40e_pf *pf = np->vsi->back; 1329 struct i40e_vsi *vsi = np->vsi; 1330 struct i40e_hw *hw = &pf->hw; 1331 struct i40e_link_status *hw_link_info = &hw->phy.link_info; 1332 struct i40e_dcbx_config *dcbx_cfg = &hw->local_dcbx_config; 1333 bool link_up = hw_link_info->link_info & I40E_AQ_LINK_UP; 1334 i40e_status status; 1335 u8 aq_failures; 1336 int err = 0; 1337 1338 /* Changing the port's flow control is not supported if this isn't the 1339 * port's controlling PF 1340 */ 1341 if (hw->partition_id != 1) { 1342 i40e_partition_setting_complaint(pf); 1343 return -EOPNOTSUPP; 1344 } 1345 1346 if (vsi != pf->vsi[pf->lan_vsi]) 1347 return -EOPNOTSUPP; 1348 1349 if (pause->autoneg != ((hw_link_info->an_info & I40E_AQ_AN_COMPLETED) ? 1350 AUTONEG_ENABLE : AUTONEG_DISABLE)) { 1351 netdev_info(netdev, "To change autoneg please use: ethtool -s <dev> autoneg <on|off>\n"); 1352 return -EOPNOTSUPP; 1353 } 1354 1355 /* If we have link and don't have autoneg */ 1356 if (!test_bit(__I40E_DOWN, pf->state) && 1357 !(hw_link_info->an_info & I40E_AQ_AN_COMPLETED)) { 1358 /* Send message that it might not necessarily work*/ 1359 netdev_info(netdev, "Autoneg did not complete so changing settings may not result in an actual change.\n"); 1360 } 1361 1362 if (dcbx_cfg->pfc.pfcenable) { 1363 netdev_info(netdev, 1364 "Priority flow control enabled. Cannot set link flow control.\n"); 1365 return -EOPNOTSUPP; 1366 } 1367 1368 if (pause->rx_pause && pause->tx_pause) 1369 hw->fc.requested_mode = I40E_FC_FULL; 1370 else if (pause->rx_pause && !pause->tx_pause) 1371 hw->fc.requested_mode = I40E_FC_RX_PAUSE; 1372 else if (!pause->rx_pause && pause->tx_pause) 1373 hw->fc.requested_mode = I40E_FC_TX_PAUSE; 1374 else if (!pause->rx_pause && !pause->tx_pause) 1375 hw->fc.requested_mode = I40E_FC_NONE; 1376 else 1377 return -EINVAL; 1378 1379 /* Tell the OS link is going down, the link will go back up when fw 1380 * says it is ready asynchronously 1381 */ 1382 i40e_print_link_message(vsi, false); 1383 netif_carrier_off(netdev); 1384 netif_tx_stop_all_queues(netdev); 1385 1386 /* Set the fc mode and only restart an if link is up*/ 1387 status = i40e_set_fc(hw, &aq_failures, link_up); 1388 1389 if (aq_failures & I40E_SET_FC_AQ_FAIL_GET) { 1390 netdev_info(netdev, "Set fc failed on the get_phy_capabilities call with err %s aq_err %s\n", 1391 i40e_stat_str(hw, status), 1392 i40e_aq_str(hw, hw->aq.asq_last_status)); 1393 err = -EAGAIN; 1394 } 1395 if (aq_failures & I40E_SET_FC_AQ_FAIL_SET) { 1396 netdev_info(netdev, "Set fc failed on the set_phy_config call with err %s aq_err %s\n", 1397 i40e_stat_str(hw, status), 1398 i40e_aq_str(hw, hw->aq.asq_last_status)); 1399 err = -EAGAIN; 1400 } 1401 if (aq_failures & I40E_SET_FC_AQ_FAIL_UPDATE) { 1402 netdev_info(netdev, "Set fc failed on the get_link_info call with err %s aq_err %s\n", 1403 i40e_stat_str(hw, status), 1404 i40e_aq_str(hw, hw->aq.asq_last_status)); 1405 err = -EAGAIN; 1406 } 1407 1408 if (!test_bit(__I40E_DOWN, pf->state)) { 1409 /* Give it a little more time to try to come back */ 1410 msleep(75); 1411 if (!test_bit(__I40E_DOWN, pf->state)) 1412 return i40e_nway_reset(netdev); 1413 } 1414 1415 return err; 1416 } 1417 1418 static u32 i40e_get_msglevel(struct net_device *netdev) 1419 { 1420 struct i40e_netdev_priv *np = netdev_priv(netdev); 1421 struct i40e_pf *pf = np->vsi->back; 1422 u32 debug_mask = pf->hw.debug_mask; 1423 1424 if (debug_mask) 1425 netdev_info(netdev, "i40e debug_mask: 0x%08X\n", debug_mask); 1426 1427 return pf->msg_enable; 1428 } 1429 1430 static void i40e_set_msglevel(struct net_device *netdev, u32 data) 1431 { 1432 struct i40e_netdev_priv *np = netdev_priv(netdev); 1433 struct i40e_pf *pf = np->vsi->back; 1434 1435 if (I40E_DEBUG_USER & data) 1436 pf->hw.debug_mask = data; 1437 else 1438 pf->msg_enable = data; 1439 } 1440 1441 static int i40e_get_regs_len(struct net_device *netdev) 1442 { 1443 int reg_count = 0; 1444 int i; 1445 1446 for (i = 0; i40e_reg_list[i].offset != 0; i++) 1447 reg_count += i40e_reg_list[i].elements; 1448 1449 return reg_count * sizeof(u32); 1450 } 1451 1452 static void i40e_get_regs(struct net_device *netdev, struct ethtool_regs *regs, 1453 void *p) 1454 { 1455 struct i40e_netdev_priv *np = netdev_priv(netdev); 1456 struct i40e_pf *pf = np->vsi->back; 1457 struct i40e_hw *hw = &pf->hw; 1458 u32 *reg_buf = p; 1459 unsigned int i, j, ri; 1460 u32 reg; 1461 1462 /* Tell ethtool which driver-version-specific regs output we have. 1463 * 1464 * At some point, if we have ethtool doing special formatting of 1465 * this data, it will rely on this version number to know how to 1466 * interpret things. Hence, this needs to be updated if/when the 1467 * diags register table is changed. 1468 */ 1469 regs->version = 1; 1470 1471 /* loop through the diags reg table for what to print */ 1472 ri = 0; 1473 for (i = 0; i40e_reg_list[i].offset != 0; i++) { 1474 for (j = 0; j < i40e_reg_list[i].elements; j++) { 1475 reg = i40e_reg_list[i].offset 1476 + (j * i40e_reg_list[i].stride); 1477 reg_buf[ri++] = rd32(hw, reg); 1478 } 1479 } 1480 1481 } 1482 1483 static int i40e_get_eeprom(struct net_device *netdev, 1484 struct ethtool_eeprom *eeprom, u8 *bytes) 1485 { 1486 struct i40e_netdev_priv *np = netdev_priv(netdev); 1487 struct i40e_hw *hw = &np->vsi->back->hw; 1488 struct i40e_pf *pf = np->vsi->back; 1489 int ret_val = 0, len, offset; 1490 u8 *eeprom_buff; 1491 u16 i, sectors; 1492 bool last; 1493 u32 magic; 1494 1495 #define I40E_NVM_SECTOR_SIZE 4096 1496 if (eeprom->len == 0) 1497 return -EINVAL; 1498 1499 /* check for NVMUpdate access method */ 1500 magic = hw->vendor_id | (hw->device_id << 16); 1501 if (eeprom->magic && eeprom->magic != magic) { 1502 struct i40e_nvm_access *cmd = (struct i40e_nvm_access *)eeprom; 1503 int errno = 0; 1504 1505 /* make sure it is the right magic for NVMUpdate */ 1506 if ((eeprom->magic >> 16) != hw->device_id) 1507 errno = -EINVAL; 1508 else if (test_bit(__I40E_RESET_RECOVERY_PENDING, pf->state) || 1509 test_bit(__I40E_RESET_INTR_RECEIVED, pf->state)) 1510 errno = -EBUSY; 1511 else 1512 ret_val = i40e_nvmupd_command(hw, cmd, bytes, &errno); 1513 1514 if ((errno || ret_val) && (hw->debug_mask & I40E_DEBUG_NVM)) 1515 dev_info(&pf->pdev->dev, 1516 "NVMUpdate read failed err=%d status=0x%x errno=%d module=%d offset=0x%x size=%d\n", 1517 ret_val, hw->aq.asq_last_status, errno, 1518 (u8)(cmd->config & I40E_NVM_MOD_PNT_MASK), 1519 cmd->offset, cmd->data_size); 1520 1521 return errno; 1522 } 1523 1524 /* normal ethtool get_eeprom support */ 1525 eeprom->magic = hw->vendor_id | (hw->device_id << 16); 1526 1527 eeprom_buff = kzalloc(eeprom->len, GFP_KERNEL); 1528 if (!eeprom_buff) 1529 return -ENOMEM; 1530 1531 ret_val = i40e_acquire_nvm(hw, I40E_RESOURCE_READ); 1532 if (ret_val) { 1533 dev_info(&pf->pdev->dev, 1534 "Failed Acquiring NVM resource for read err=%d status=0x%x\n", 1535 ret_val, hw->aq.asq_last_status); 1536 goto free_buff; 1537 } 1538 1539 sectors = eeprom->len / I40E_NVM_SECTOR_SIZE; 1540 sectors += (eeprom->len % I40E_NVM_SECTOR_SIZE) ? 1 : 0; 1541 len = I40E_NVM_SECTOR_SIZE; 1542 last = false; 1543 for (i = 0; i < sectors; i++) { 1544 if (i == (sectors - 1)) { 1545 len = eeprom->len - (I40E_NVM_SECTOR_SIZE * i); 1546 last = true; 1547 } 1548 offset = eeprom->offset + (I40E_NVM_SECTOR_SIZE * i), 1549 ret_val = i40e_aq_read_nvm(hw, 0x0, offset, len, 1550 (u8 *)eeprom_buff + (I40E_NVM_SECTOR_SIZE * i), 1551 last, NULL); 1552 if (ret_val && hw->aq.asq_last_status == I40E_AQ_RC_EPERM) { 1553 dev_info(&pf->pdev->dev, 1554 "read NVM failed, invalid offset 0x%x\n", 1555 offset); 1556 break; 1557 } else if (ret_val && 1558 hw->aq.asq_last_status == I40E_AQ_RC_EACCES) { 1559 dev_info(&pf->pdev->dev, 1560 "read NVM failed, access, offset 0x%x\n", 1561 offset); 1562 break; 1563 } else if (ret_val) { 1564 dev_info(&pf->pdev->dev, 1565 "read NVM failed offset %d err=%d status=0x%x\n", 1566 offset, ret_val, hw->aq.asq_last_status); 1567 break; 1568 } 1569 } 1570 1571 i40e_release_nvm(hw); 1572 memcpy(bytes, (u8 *)eeprom_buff, eeprom->len); 1573 free_buff: 1574 kfree(eeprom_buff); 1575 return ret_val; 1576 } 1577 1578 static int i40e_get_eeprom_len(struct net_device *netdev) 1579 { 1580 struct i40e_netdev_priv *np = netdev_priv(netdev); 1581 struct i40e_hw *hw = &np->vsi->back->hw; 1582 u32 val; 1583 1584 #define X722_EEPROM_SCOPE_LIMIT 0x5B9FFF 1585 if (hw->mac.type == I40E_MAC_X722) { 1586 val = X722_EEPROM_SCOPE_LIMIT + 1; 1587 return val; 1588 } 1589 val = (rd32(hw, I40E_GLPCI_LBARCTRL) 1590 & I40E_GLPCI_LBARCTRL_FL_SIZE_MASK) 1591 >> I40E_GLPCI_LBARCTRL_FL_SIZE_SHIFT; 1592 /* register returns value in power of 2, 64Kbyte chunks. */ 1593 val = (64 * 1024) * BIT(val); 1594 return val; 1595 } 1596 1597 static int i40e_set_eeprom(struct net_device *netdev, 1598 struct ethtool_eeprom *eeprom, u8 *bytes) 1599 { 1600 struct i40e_netdev_priv *np = netdev_priv(netdev); 1601 struct i40e_hw *hw = &np->vsi->back->hw; 1602 struct i40e_pf *pf = np->vsi->back; 1603 struct i40e_nvm_access *cmd = (struct i40e_nvm_access *)eeprom; 1604 int ret_val = 0; 1605 int errno = 0; 1606 u32 magic; 1607 1608 /* normal ethtool set_eeprom is not supported */ 1609 magic = hw->vendor_id | (hw->device_id << 16); 1610 if (eeprom->magic == magic) 1611 errno = -EOPNOTSUPP; 1612 /* check for NVMUpdate access method */ 1613 else if (!eeprom->magic || (eeprom->magic >> 16) != hw->device_id) 1614 errno = -EINVAL; 1615 else if (test_bit(__I40E_RESET_RECOVERY_PENDING, pf->state) || 1616 test_bit(__I40E_RESET_INTR_RECEIVED, pf->state)) 1617 errno = -EBUSY; 1618 else 1619 ret_val = i40e_nvmupd_command(hw, cmd, bytes, &errno); 1620 1621 if ((errno || ret_val) && (hw->debug_mask & I40E_DEBUG_NVM)) 1622 dev_info(&pf->pdev->dev, 1623 "NVMUpdate write failed err=%d status=0x%x errno=%d module=%d offset=0x%x size=%d\n", 1624 ret_val, hw->aq.asq_last_status, errno, 1625 (u8)(cmd->config & I40E_NVM_MOD_PNT_MASK), 1626 cmd->offset, cmd->data_size); 1627 1628 return errno; 1629 } 1630 1631 static void i40e_get_drvinfo(struct net_device *netdev, 1632 struct ethtool_drvinfo *drvinfo) 1633 { 1634 struct i40e_netdev_priv *np = netdev_priv(netdev); 1635 struct i40e_vsi *vsi = np->vsi; 1636 struct i40e_pf *pf = vsi->back; 1637 1638 strlcpy(drvinfo->driver, i40e_driver_name, sizeof(drvinfo->driver)); 1639 strlcpy(drvinfo->version, i40e_driver_version_str, 1640 sizeof(drvinfo->version)); 1641 strlcpy(drvinfo->fw_version, i40e_nvm_version_str(&pf->hw), 1642 sizeof(drvinfo->fw_version)); 1643 strlcpy(drvinfo->bus_info, pci_name(pf->pdev), 1644 sizeof(drvinfo->bus_info)); 1645 drvinfo->n_priv_flags = I40E_PRIV_FLAGS_STR_LEN; 1646 if (pf->hw.pf_id == 0) 1647 drvinfo->n_priv_flags += I40E_GL_PRIV_FLAGS_STR_LEN; 1648 } 1649 1650 static void i40e_get_ringparam(struct net_device *netdev, 1651 struct ethtool_ringparam *ring) 1652 { 1653 struct i40e_netdev_priv *np = netdev_priv(netdev); 1654 struct i40e_pf *pf = np->vsi->back; 1655 struct i40e_vsi *vsi = pf->vsi[pf->lan_vsi]; 1656 1657 ring->rx_max_pending = I40E_MAX_NUM_DESCRIPTORS; 1658 ring->tx_max_pending = I40E_MAX_NUM_DESCRIPTORS; 1659 ring->rx_mini_max_pending = 0; 1660 ring->rx_jumbo_max_pending = 0; 1661 ring->rx_pending = vsi->rx_rings[0]->count; 1662 ring->tx_pending = vsi->tx_rings[0]->count; 1663 ring->rx_mini_pending = 0; 1664 ring->rx_jumbo_pending = 0; 1665 } 1666 1667 static bool i40e_active_tx_ring_index(struct i40e_vsi *vsi, u16 index) 1668 { 1669 if (i40e_enabled_xdp_vsi(vsi)) { 1670 return index < vsi->num_queue_pairs || 1671 (index >= vsi->alloc_queue_pairs && 1672 index < vsi->alloc_queue_pairs + vsi->num_queue_pairs); 1673 } 1674 1675 return index < vsi->num_queue_pairs; 1676 } 1677 1678 static int i40e_set_ringparam(struct net_device *netdev, 1679 struct ethtool_ringparam *ring) 1680 { 1681 struct i40e_ring *tx_rings = NULL, *rx_rings = NULL; 1682 struct i40e_netdev_priv *np = netdev_priv(netdev); 1683 struct i40e_hw *hw = &np->vsi->back->hw; 1684 struct i40e_vsi *vsi = np->vsi; 1685 struct i40e_pf *pf = vsi->back; 1686 u32 new_rx_count, new_tx_count; 1687 u16 tx_alloc_queue_pairs; 1688 int timeout = 50; 1689 int i, err = 0; 1690 1691 if ((ring->rx_mini_pending) || (ring->rx_jumbo_pending)) 1692 return -EINVAL; 1693 1694 if (ring->tx_pending > I40E_MAX_NUM_DESCRIPTORS || 1695 ring->tx_pending < I40E_MIN_NUM_DESCRIPTORS || 1696 ring->rx_pending > I40E_MAX_NUM_DESCRIPTORS || 1697 ring->rx_pending < I40E_MIN_NUM_DESCRIPTORS) { 1698 netdev_info(netdev, 1699 "Descriptors requested (Tx: %d / Rx: %d) out of range [%d-%d]\n", 1700 ring->tx_pending, ring->rx_pending, 1701 I40E_MIN_NUM_DESCRIPTORS, I40E_MAX_NUM_DESCRIPTORS); 1702 return -EINVAL; 1703 } 1704 1705 new_tx_count = ALIGN(ring->tx_pending, I40E_REQ_DESCRIPTOR_MULTIPLE); 1706 new_rx_count = ALIGN(ring->rx_pending, I40E_REQ_DESCRIPTOR_MULTIPLE); 1707 1708 /* if nothing to do return success */ 1709 if ((new_tx_count == vsi->tx_rings[0]->count) && 1710 (new_rx_count == vsi->rx_rings[0]->count)) 1711 return 0; 1712 1713 while (test_and_set_bit(__I40E_CONFIG_BUSY, pf->state)) { 1714 timeout--; 1715 if (!timeout) 1716 return -EBUSY; 1717 usleep_range(1000, 2000); 1718 } 1719 1720 if (!netif_running(vsi->netdev)) { 1721 /* simple case - set for the next time the netdev is started */ 1722 for (i = 0; i < vsi->num_queue_pairs; i++) { 1723 vsi->tx_rings[i]->count = new_tx_count; 1724 vsi->rx_rings[i]->count = new_rx_count; 1725 if (i40e_enabled_xdp_vsi(vsi)) 1726 vsi->xdp_rings[i]->count = new_tx_count; 1727 } 1728 goto done; 1729 } 1730 1731 /* We can't just free everything and then setup again, 1732 * because the ISRs in MSI-X mode get passed pointers 1733 * to the Tx and Rx ring structs. 1734 */ 1735 1736 /* alloc updated Tx and XDP Tx resources */ 1737 tx_alloc_queue_pairs = vsi->alloc_queue_pairs * 1738 (i40e_enabled_xdp_vsi(vsi) ? 2 : 1); 1739 if (new_tx_count != vsi->tx_rings[0]->count) { 1740 netdev_info(netdev, 1741 "Changing Tx descriptor count from %d to %d.\n", 1742 vsi->tx_rings[0]->count, new_tx_count); 1743 tx_rings = kcalloc(tx_alloc_queue_pairs, 1744 sizeof(struct i40e_ring), GFP_KERNEL); 1745 if (!tx_rings) { 1746 err = -ENOMEM; 1747 goto done; 1748 } 1749 1750 for (i = 0; i < tx_alloc_queue_pairs; i++) { 1751 if (!i40e_active_tx_ring_index(vsi, i)) 1752 continue; 1753 1754 tx_rings[i] = *vsi->tx_rings[i]; 1755 tx_rings[i].count = new_tx_count; 1756 /* the desc and bi pointers will be reallocated in the 1757 * setup call 1758 */ 1759 tx_rings[i].desc = NULL; 1760 tx_rings[i].rx_bi = NULL; 1761 err = i40e_setup_tx_descriptors(&tx_rings[i]); 1762 if (err) { 1763 while (i) { 1764 i--; 1765 if (!i40e_active_tx_ring_index(vsi, i)) 1766 continue; 1767 i40e_free_tx_resources(&tx_rings[i]); 1768 } 1769 kfree(tx_rings); 1770 tx_rings = NULL; 1771 1772 goto done; 1773 } 1774 } 1775 } 1776 1777 /* alloc updated Rx resources */ 1778 if (new_rx_count != vsi->rx_rings[0]->count) { 1779 netdev_info(netdev, 1780 "Changing Rx descriptor count from %d to %d\n", 1781 vsi->rx_rings[0]->count, new_rx_count); 1782 rx_rings = kcalloc(vsi->alloc_queue_pairs, 1783 sizeof(struct i40e_ring), GFP_KERNEL); 1784 if (!rx_rings) { 1785 err = -ENOMEM; 1786 goto free_tx; 1787 } 1788 1789 for (i = 0; i < vsi->num_queue_pairs; i++) { 1790 u16 unused; 1791 1792 /* clone ring and setup updated count */ 1793 rx_rings[i] = *vsi->rx_rings[i]; 1794 rx_rings[i].count = new_rx_count; 1795 /* the desc and bi pointers will be reallocated in the 1796 * setup call 1797 */ 1798 rx_rings[i].desc = NULL; 1799 rx_rings[i].rx_bi = NULL; 1800 /* Clear cloned XDP RX-queue info before setup call */ 1801 memset(&rx_rings[i].xdp_rxq, 0, sizeof(rx_rings[i].xdp_rxq)); 1802 /* this is to allow wr32 to have something to write to 1803 * during early allocation of Rx buffers 1804 */ 1805 rx_rings[i].tail = hw->hw_addr + I40E_PRTGEN_STATUS; 1806 err = i40e_setup_rx_descriptors(&rx_rings[i]); 1807 if (err) 1808 goto rx_unwind; 1809 1810 /* now allocate the Rx buffers to make sure the OS 1811 * has enough memory, any failure here means abort 1812 */ 1813 unused = I40E_DESC_UNUSED(&rx_rings[i]); 1814 err = i40e_alloc_rx_buffers(&rx_rings[i], unused); 1815 rx_unwind: 1816 if (err) { 1817 do { 1818 i40e_free_rx_resources(&rx_rings[i]); 1819 } while (i--); 1820 kfree(rx_rings); 1821 rx_rings = NULL; 1822 1823 goto free_tx; 1824 } 1825 } 1826 } 1827 1828 /* Bring interface down, copy in the new ring info, 1829 * then restore the interface 1830 */ 1831 i40e_down(vsi); 1832 1833 if (tx_rings) { 1834 for (i = 0; i < tx_alloc_queue_pairs; i++) { 1835 if (i40e_active_tx_ring_index(vsi, i)) { 1836 i40e_free_tx_resources(vsi->tx_rings[i]); 1837 *vsi->tx_rings[i] = tx_rings[i]; 1838 } 1839 } 1840 kfree(tx_rings); 1841 tx_rings = NULL; 1842 } 1843 1844 if (rx_rings) { 1845 for (i = 0; i < vsi->num_queue_pairs; i++) { 1846 i40e_free_rx_resources(vsi->rx_rings[i]); 1847 /* get the real tail offset */ 1848 rx_rings[i].tail = vsi->rx_rings[i]->tail; 1849 /* this is to fake out the allocation routine 1850 * into thinking it has to realloc everything 1851 * but the recycling logic will let us re-use 1852 * the buffers allocated above 1853 */ 1854 rx_rings[i].next_to_use = 0; 1855 rx_rings[i].next_to_clean = 0; 1856 rx_rings[i].next_to_alloc = 0; 1857 /* do a struct copy */ 1858 *vsi->rx_rings[i] = rx_rings[i]; 1859 } 1860 kfree(rx_rings); 1861 rx_rings = NULL; 1862 } 1863 1864 i40e_up(vsi); 1865 1866 free_tx: 1867 /* error cleanup if the Rx allocations failed after getting Tx */ 1868 if (tx_rings) { 1869 for (i = 0; i < tx_alloc_queue_pairs; i++) { 1870 if (i40e_active_tx_ring_index(vsi, i)) 1871 i40e_free_tx_resources(vsi->tx_rings[i]); 1872 } 1873 kfree(tx_rings); 1874 tx_rings = NULL; 1875 } 1876 1877 done: 1878 clear_bit(__I40E_CONFIG_BUSY, pf->state); 1879 1880 return err; 1881 } 1882 1883 /** 1884 * i40e_get_stats_count - return the stats count for a device 1885 * @netdev: the netdev to return the count for 1886 * 1887 * Returns the total number of statistics for this netdev. Note that even 1888 * though this is a function, it is required that the count for a specific 1889 * netdev must never change. Basing the count on static values such as the 1890 * maximum number of queues or the device type is ok. However, the API for 1891 * obtaining stats is *not* safe against changes based on non-static 1892 * values such as the *current* number of queues, or runtime flags. 1893 * 1894 * If a statistic is not always enabled, return it as part of the count 1895 * anyways, always return its string, and report its value as zero. 1896 **/ 1897 static int i40e_get_stats_count(struct net_device *netdev) 1898 { 1899 struct i40e_netdev_priv *np = netdev_priv(netdev); 1900 struct i40e_vsi *vsi = np->vsi; 1901 struct i40e_pf *pf = vsi->back; 1902 int stats_len; 1903 1904 if (vsi == pf->vsi[pf->lan_vsi] && pf->hw.partition_id == 1) 1905 stats_len = I40E_PF_STATS_LEN; 1906 else 1907 stats_len = I40E_VSI_STATS_LEN; 1908 1909 /* The number of stats reported for a given net_device must remain 1910 * constant throughout the life of that device. 1911 * 1912 * This is because the API for obtaining the size, strings, and stats 1913 * is spread out over three separate ethtool ioctls. There is no safe 1914 * way to lock the number of stats across these calls, so we must 1915 * assume that they will never change. 1916 * 1917 * Due to this, we report the maximum number of queues, even if not 1918 * every queue is currently configured. Since we always allocate 1919 * queues in pairs, we'll just use netdev->num_tx_queues * 2. This 1920 * works because the num_tx_queues is set at device creation and never 1921 * changes. 1922 */ 1923 stats_len += I40E_QUEUE_STATS_LEN * 2 * netdev->num_tx_queues; 1924 1925 return stats_len; 1926 } 1927 1928 static int i40e_get_sset_count(struct net_device *netdev, int sset) 1929 { 1930 struct i40e_netdev_priv *np = netdev_priv(netdev); 1931 struct i40e_vsi *vsi = np->vsi; 1932 struct i40e_pf *pf = vsi->back; 1933 1934 switch (sset) { 1935 case ETH_SS_TEST: 1936 return I40E_TEST_LEN; 1937 case ETH_SS_STATS: 1938 return i40e_get_stats_count(netdev); 1939 case ETH_SS_PRIV_FLAGS: 1940 return I40E_PRIV_FLAGS_STR_LEN + 1941 (pf->hw.pf_id == 0 ? I40E_GL_PRIV_FLAGS_STR_LEN : 0); 1942 default: 1943 return -EOPNOTSUPP; 1944 } 1945 } 1946 1947 /** 1948 * i40e_get_pfc_stats - copy HW PFC statistics to formatted structure 1949 * @pf: the PF device structure 1950 * @i: the priority value to copy 1951 * 1952 * The PFC stats are found as arrays in pf->stats, which is not easy to pass 1953 * into i40e_add_ethtool_stats. Produce a formatted i40e_pfc_stats structure 1954 * of the PFC stats for the given priority. 1955 **/ 1956 static inline struct i40e_pfc_stats 1957 i40e_get_pfc_stats(struct i40e_pf *pf, unsigned int i) 1958 { 1959 #define I40E_GET_PFC_STAT(stat, priority) \ 1960 .stat = pf->stats.stat[priority] 1961 1962 struct i40e_pfc_stats pfc = { 1963 I40E_GET_PFC_STAT(priority_xon_rx, i), 1964 I40E_GET_PFC_STAT(priority_xoff_rx, i), 1965 I40E_GET_PFC_STAT(priority_xon_tx, i), 1966 I40E_GET_PFC_STAT(priority_xoff_tx, i), 1967 I40E_GET_PFC_STAT(priority_xon_2_xoff, i), 1968 }; 1969 return pfc; 1970 } 1971 1972 /** 1973 * i40e_get_ethtool_stats - copy stat values into supplied buffer 1974 * @netdev: the netdev to collect stats for 1975 * @stats: ethtool stats command structure 1976 * @data: ethtool supplied buffer 1977 * 1978 * Copy the stats values for this netdev into the buffer. Expects data to be 1979 * pre-allocated to the size returned by i40e_get_stats_count.. Note that all 1980 * statistics must be copied in a static order, and the count must not change 1981 * for a given netdev. See i40e_get_stats_count for more details. 1982 * 1983 * If a statistic is not currently valid (such as a disabled queue), this 1984 * function reports its value as zero. 1985 **/ 1986 static void i40e_get_ethtool_stats(struct net_device *netdev, 1987 struct ethtool_stats *stats, u64 *data) 1988 { 1989 struct i40e_netdev_priv *np = netdev_priv(netdev); 1990 struct i40e_vsi *vsi = np->vsi; 1991 struct i40e_pf *pf = vsi->back; 1992 struct i40e_veb *veb = pf->veb[pf->lan_veb]; 1993 unsigned int i; 1994 bool veb_stats; 1995 u64 *p = data; 1996 1997 i40e_update_stats(vsi); 1998 1999 i40e_add_ethtool_stats(&data, i40e_get_vsi_stats_struct(vsi), 2000 i40e_gstrings_net_stats); 2001 2002 i40e_add_ethtool_stats(&data, vsi, i40e_gstrings_misc_stats); 2003 2004 rcu_read_lock(); 2005 for (i = 0; i < netdev->num_tx_queues; i++) { 2006 i40e_add_queue_stats(&data, READ_ONCE(vsi->tx_rings[i])); 2007 i40e_add_queue_stats(&data, READ_ONCE(vsi->rx_rings[i])); 2008 } 2009 rcu_read_unlock(); 2010 2011 if (vsi != pf->vsi[pf->lan_vsi] || pf->hw.partition_id != 1) 2012 goto check_data_pointer; 2013 2014 veb_stats = ((pf->lan_veb != I40E_NO_VEB) && 2015 (pf->flags & I40E_FLAG_VEB_STATS_ENABLED)); 2016 2017 /* If veb stats aren't enabled, pass NULL instead of the veb so that 2018 * we initialize stats to zero and update the data pointer 2019 * intelligently 2020 */ 2021 i40e_add_ethtool_stats(&data, veb_stats ? veb : NULL, 2022 i40e_gstrings_veb_stats); 2023 2024 for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++) 2025 i40e_add_ethtool_stats(&data, veb_stats ? veb : NULL, 2026 i40e_gstrings_veb_tc_stats); 2027 2028 i40e_add_ethtool_stats(&data, pf, i40e_gstrings_stats); 2029 2030 for (i = 0; i < I40E_MAX_USER_PRIORITY; i++) { 2031 struct i40e_pfc_stats pfc = i40e_get_pfc_stats(pf, i); 2032 2033 i40e_add_ethtool_stats(&data, &pfc, i40e_gstrings_pfc_stats); 2034 } 2035 2036 check_data_pointer: 2037 WARN_ONCE(data - p != i40e_get_stats_count(netdev), 2038 "ethtool stats count mismatch!"); 2039 } 2040 2041 /** 2042 * i40e_get_stat_strings - copy stat strings into supplied buffer 2043 * @netdev: the netdev to collect strings for 2044 * @data: supplied buffer to copy strings into 2045 * 2046 * Copy the strings related to stats for this netdev. Expects data to be 2047 * pre-allocated with the size reported by i40e_get_stats_count. Note that the 2048 * strings must be copied in a static order and the total count must not 2049 * change for a given netdev. See i40e_get_stats_count for more details. 2050 **/ 2051 static void i40e_get_stat_strings(struct net_device *netdev, u8 *data) 2052 { 2053 struct i40e_netdev_priv *np = netdev_priv(netdev); 2054 struct i40e_vsi *vsi = np->vsi; 2055 struct i40e_pf *pf = vsi->back; 2056 unsigned int i; 2057 u8 *p = data; 2058 2059 i40e_add_stat_strings(&data, i40e_gstrings_net_stats); 2060 2061 i40e_add_stat_strings(&data, i40e_gstrings_misc_stats); 2062 2063 for (i = 0; i < netdev->num_tx_queues; i++) { 2064 i40e_add_stat_strings(&data, i40e_gstrings_queue_stats, 2065 "tx", i); 2066 i40e_add_stat_strings(&data, i40e_gstrings_queue_stats, 2067 "rx", i); 2068 } 2069 2070 if (vsi != pf->vsi[pf->lan_vsi] || pf->hw.partition_id != 1) 2071 return; 2072 2073 i40e_add_stat_strings(&data, i40e_gstrings_veb_stats); 2074 2075 for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++) 2076 i40e_add_stat_strings(&data, i40e_gstrings_veb_tc_stats, i); 2077 2078 i40e_add_stat_strings(&data, i40e_gstrings_stats); 2079 2080 for (i = 0; i < I40E_MAX_USER_PRIORITY; i++) 2081 i40e_add_stat_strings(&data, i40e_gstrings_pfc_stats, i); 2082 2083 WARN_ONCE(data - p != i40e_get_stats_count(netdev) * ETH_GSTRING_LEN, 2084 "stat strings count mismatch!"); 2085 } 2086 2087 static void i40e_get_priv_flag_strings(struct net_device *netdev, u8 *data) 2088 { 2089 struct i40e_netdev_priv *np = netdev_priv(netdev); 2090 struct i40e_vsi *vsi = np->vsi; 2091 struct i40e_pf *pf = vsi->back; 2092 char *p = (char *)data; 2093 unsigned int i; 2094 2095 for (i = 0; i < I40E_PRIV_FLAGS_STR_LEN; i++) { 2096 snprintf(p, ETH_GSTRING_LEN, "%s", 2097 i40e_gstrings_priv_flags[i].flag_string); 2098 p += ETH_GSTRING_LEN; 2099 } 2100 if (pf->hw.pf_id != 0) 2101 return; 2102 for (i = 0; i < I40E_GL_PRIV_FLAGS_STR_LEN; i++) { 2103 snprintf(p, ETH_GSTRING_LEN, "%s", 2104 i40e_gl_gstrings_priv_flags[i].flag_string); 2105 p += ETH_GSTRING_LEN; 2106 } 2107 } 2108 2109 static void i40e_get_strings(struct net_device *netdev, u32 stringset, 2110 u8 *data) 2111 { 2112 switch (stringset) { 2113 case ETH_SS_TEST: 2114 memcpy(data, i40e_gstrings_test, 2115 I40E_TEST_LEN * ETH_GSTRING_LEN); 2116 break; 2117 case ETH_SS_STATS: 2118 i40e_get_stat_strings(netdev, data); 2119 break; 2120 case ETH_SS_PRIV_FLAGS: 2121 i40e_get_priv_flag_strings(netdev, data); 2122 break; 2123 default: 2124 break; 2125 } 2126 } 2127 2128 static int i40e_get_ts_info(struct net_device *dev, 2129 struct ethtool_ts_info *info) 2130 { 2131 struct i40e_pf *pf = i40e_netdev_to_pf(dev); 2132 2133 /* only report HW timestamping if PTP is enabled */ 2134 if (!(pf->flags & I40E_FLAG_PTP)) 2135 return ethtool_op_get_ts_info(dev, info); 2136 2137 info->so_timestamping = SOF_TIMESTAMPING_TX_SOFTWARE | 2138 SOF_TIMESTAMPING_RX_SOFTWARE | 2139 SOF_TIMESTAMPING_SOFTWARE | 2140 SOF_TIMESTAMPING_TX_HARDWARE | 2141 SOF_TIMESTAMPING_RX_HARDWARE | 2142 SOF_TIMESTAMPING_RAW_HARDWARE; 2143 2144 if (pf->ptp_clock) 2145 info->phc_index = ptp_clock_index(pf->ptp_clock); 2146 else 2147 info->phc_index = -1; 2148 2149 info->tx_types = BIT(HWTSTAMP_TX_OFF) | BIT(HWTSTAMP_TX_ON); 2150 2151 info->rx_filters = BIT(HWTSTAMP_FILTER_NONE) | 2152 BIT(HWTSTAMP_FILTER_PTP_V2_L2_EVENT) | 2153 BIT(HWTSTAMP_FILTER_PTP_V2_L2_SYNC) | 2154 BIT(HWTSTAMP_FILTER_PTP_V2_L2_DELAY_REQ); 2155 2156 if (pf->hw_features & I40E_HW_PTP_L4_CAPABLE) 2157 info->rx_filters |= BIT(HWTSTAMP_FILTER_PTP_V1_L4_SYNC) | 2158 BIT(HWTSTAMP_FILTER_PTP_V1_L4_DELAY_REQ) | 2159 BIT(HWTSTAMP_FILTER_PTP_V2_EVENT) | 2160 BIT(HWTSTAMP_FILTER_PTP_V2_L4_EVENT) | 2161 BIT(HWTSTAMP_FILTER_PTP_V2_SYNC) | 2162 BIT(HWTSTAMP_FILTER_PTP_V2_L4_SYNC) | 2163 BIT(HWTSTAMP_FILTER_PTP_V2_DELAY_REQ) | 2164 BIT(HWTSTAMP_FILTER_PTP_V2_L4_DELAY_REQ); 2165 2166 return 0; 2167 } 2168 2169 static int i40e_link_test(struct net_device *netdev, u64 *data) 2170 { 2171 struct i40e_netdev_priv *np = netdev_priv(netdev); 2172 struct i40e_pf *pf = np->vsi->back; 2173 i40e_status status; 2174 bool link_up = false; 2175 2176 netif_info(pf, hw, netdev, "link test\n"); 2177 status = i40e_get_link_status(&pf->hw, &link_up); 2178 if (status) { 2179 netif_err(pf, drv, netdev, "link query timed out, please retry test\n"); 2180 *data = 1; 2181 return *data; 2182 } 2183 2184 if (link_up) 2185 *data = 0; 2186 else 2187 *data = 1; 2188 2189 return *data; 2190 } 2191 2192 static int i40e_reg_test(struct net_device *netdev, u64 *data) 2193 { 2194 struct i40e_netdev_priv *np = netdev_priv(netdev); 2195 struct i40e_pf *pf = np->vsi->back; 2196 2197 netif_info(pf, hw, netdev, "register test\n"); 2198 *data = i40e_diag_reg_test(&pf->hw); 2199 2200 return *data; 2201 } 2202 2203 static int i40e_eeprom_test(struct net_device *netdev, u64 *data) 2204 { 2205 struct i40e_netdev_priv *np = netdev_priv(netdev); 2206 struct i40e_pf *pf = np->vsi->back; 2207 2208 netif_info(pf, hw, netdev, "eeprom test\n"); 2209 *data = i40e_diag_eeprom_test(&pf->hw); 2210 2211 /* forcebly clear the NVM Update state machine */ 2212 pf->hw.nvmupd_state = I40E_NVMUPD_STATE_INIT; 2213 2214 return *data; 2215 } 2216 2217 static int i40e_intr_test(struct net_device *netdev, u64 *data) 2218 { 2219 struct i40e_netdev_priv *np = netdev_priv(netdev); 2220 struct i40e_pf *pf = np->vsi->back; 2221 u16 swc_old = pf->sw_int_count; 2222 2223 netif_info(pf, hw, netdev, "interrupt test\n"); 2224 wr32(&pf->hw, I40E_PFINT_DYN_CTL0, 2225 (I40E_PFINT_DYN_CTL0_INTENA_MASK | 2226 I40E_PFINT_DYN_CTL0_SWINT_TRIG_MASK | 2227 I40E_PFINT_DYN_CTL0_ITR_INDX_MASK | 2228 I40E_PFINT_DYN_CTL0_SW_ITR_INDX_ENA_MASK | 2229 I40E_PFINT_DYN_CTL0_SW_ITR_INDX_MASK)); 2230 usleep_range(1000, 2000); 2231 *data = (swc_old == pf->sw_int_count); 2232 2233 return *data; 2234 } 2235 2236 static inline bool i40e_active_vfs(struct i40e_pf *pf) 2237 { 2238 struct i40e_vf *vfs = pf->vf; 2239 int i; 2240 2241 for (i = 0; i < pf->num_alloc_vfs; i++) 2242 if (test_bit(I40E_VF_STATE_ACTIVE, &vfs[i].vf_states)) 2243 return true; 2244 return false; 2245 } 2246 2247 static inline bool i40e_active_vmdqs(struct i40e_pf *pf) 2248 { 2249 return !!i40e_find_vsi_by_type(pf, I40E_VSI_VMDQ2); 2250 } 2251 2252 static void i40e_diag_test(struct net_device *netdev, 2253 struct ethtool_test *eth_test, u64 *data) 2254 { 2255 struct i40e_netdev_priv *np = netdev_priv(netdev); 2256 bool if_running = netif_running(netdev); 2257 struct i40e_pf *pf = np->vsi->back; 2258 2259 if (eth_test->flags == ETH_TEST_FL_OFFLINE) { 2260 /* Offline tests */ 2261 netif_info(pf, drv, netdev, "offline testing starting\n"); 2262 2263 set_bit(__I40E_TESTING, pf->state); 2264 2265 if (i40e_active_vfs(pf) || i40e_active_vmdqs(pf)) { 2266 dev_warn(&pf->pdev->dev, 2267 "Please take active VFs and Netqueues offline and restart the adapter before running NIC diagnostics\n"); 2268 data[I40E_ETH_TEST_REG] = 1; 2269 data[I40E_ETH_TEST_EEPROM] = 1; 2270 data[I40E_ETH_TEST_INTR] = 1; 2271 data[I40E_ETH_TEST_LINK] = 1; 2272 eth_test->flags |= ETH_TEST_FL_FAILED; 2273 clear_bit(__I40E_TESTING, pf->state); 2274 goto skip_ol_tests; 2275 } 2276 2277 /* If the device is online then take it offline */ 2278 if (if_running) 2279 /* indicate we're in test mode */ 2280 i40e_close(netdev); 2281 else 2282 /* This reset does not affect link - if it is 2283 * changed to a type of reset that does affect 2284 * link then the following link test would have 2285 * to be moved to before the reset 2286 */ 2287 i40e_do_reset(pf, BIT(__I40E_PF_RESET_REQUESTED), true); 2288 2289 if (i40e_link_test(netdev, &data[I40E_ETH_TEST_LINK])) 2290 eth_test->flags |= ETH_TEST_FL_FAILED; 2291 2292 if (i40e_eeprom_test(netdev, &data[I40E_ETH_TEST_EEPROM])) 2293 eth_test->flags |= ETH_TEST_FL_FAILED; 2294 2295 if (i40e_intr_test(netdev, &data[I40E_ETH_TEST_INTR])) 2296 eth_test->flags |= ETH_TEST_FL_FAILED; 2297 2298 /* run reg test last, a reset is required after it */ 2299 if (i40e_reg_test(netdev, &data[I40E_ETH_TEST_REG])) 2300 eth_test->flags |= ETH_TEST_FL_FAILED; 2301 2302 clear_bit(__I40E_TESTING, pf->state); 2303 i40e_do_reset(pf, BIT(__I40E_PF_RESET_REQUESTED), true); 2304 2305 if (if_running) 2306 i40e_open(netdev); 2307 } else { 2308 /* Online tests */ 2309 netif_info(pf, drv, netdev, "online testing starting\n"); 2310 2311 if (i40e_link_test(netdev, &data[I40E_ETH_TEST_LINK])) 2312 eth_test->flags |= ETH_TEST_FL_FAILED; 2313 2314 /* Offline only tests, not run in online; pass by default */ 2315 data[I40E_ETH_TEST_REG] = 0; 2316 data[I40E_ETH_TEST_EEPROM] = 0; 2317 data[I40E_ETH_TEST_INTR] = 0; 2318 } 2319 2320 skip_ol_tests: 2321 2322 netif_info(pf, drv, netdev, "testing finished\n"); 2323 } 2324 2325 static void i40e_get_wol(struct net_device *netdev, 2326 struct ethtool_wolinfo *wol) 2327 { 2328 struct i40e_netdev_priv *np = netdev_priv(netdev); 2329 struct i40e_pf *pf = np->vsi->back; 2330 struct i40e_hw *hw = &pf->hw; 2331 u16 wol_nvm_bits; 2332 2333 /* NVM bit on means WoL disabled for the port */ 2334 i40e_read_nvm_word(hw, I40E_SR_NVM_WAKE_ON_LAN, &wol_nvm_bits); 2335 if ((BIT(hw->port) & wol_nvm_bits) || (hw->partition_id != 1)) { 2336 wol->supported = 0; 2337 wol->wolopts = 0; 2338 } else { 2339 wol->supported = WAKE_MAGIC; 2340 wol->wolopts = (pf->wol_en ? WAKE_MAGIC : 0); 2341 } 2342 } 2343 2344 /** 2345 * i40e_set_wol - set the WakeOnLAN configuration 2346 * @netdev: the netdev in question 2347 * @wol: the ethtool WoL setting data 2348 **/ 2349 static int i40e_set_wol(struct net_device *netdev, struct ethtool_wolinfo *wol) 2350 { 2351 struct i40e_netdev_priv *np = netdev_priv(netdev); 2352 struct i40e_pf *pf = np->vsi->back; 2353 struct i40e_vsi *vsi = np->vsi; 2354 struct i40e_hw *hw = &pf->hw; 2355 u16 wol_nvm_bits; 2356 2357 /* WoL not supported if this isn't the controlling PF on the port */ 2358 if (hw->partition_id != 1) { 2359 i40e_partition_setting_complaint(pf); 2360 return -EOPNOTSUPP; 2361 } 2362 2363 if (vsi != pf->vsi[pf->lan_vsi]) 2364 return -EOPNOTSUPP; 2365 2366 /* NVM bit on means WoL disabled for the port */ 2367 i40e_read_nvm_word(hw, I40E_SR_NVM_WAKE_ON_LAN, &wol_nvm_bits); 2368 if (BIT(hw->port) & wol_nvm_bits) 2369 return -EOPNOTSUPP; 2370 2371 /* only magic packet is supported */ 2372 if (wol->wolopts && (wol->wolopts != WAKE_MAGIC)) 2373 return -EOPNOTSUPP; 2374 2375 /* is this a new value? */ 2376 if (pf->wol_en != !!wol->wolopts) { 2377 pf->wol_en = !!wol->wolopts; 2378 device_set_wakeup_enable(&pf->pdev->dev, pf->wol_en); 2379 } 2380 2381 return 0; 2382 } 2383 2384 static int i40e_set_phys_id(struct net_device *netdev, 2385 enum ethtool_phys_id_state state) 2386 { 2387 struct i40e_netdev_priv *np = netdev_priv(netdev); 2388 i40e_status ret = 0; 2389 struct i40e_pf *pf = np->vsi->back; 2390 struct i40e_hw *hw = &pf->hw; 2391 int blink_freq = 2; 2392 u16 temp_status; 2393 2394 switch (state) { 2395 case ETHTOOL_ID_ACTIVE: 2396 if (!(pf->hw_features & I40E_HW_PHY_CONTROLS_LEDS)) { 2397 pf->led_status = i40e_led_get(hw); 2398 } else { 2399 if (!(hw->flags & I40E_HW_FLAG_AQ_PHY_ACCESS_CAPABLE)) 2400 i40e_aq_set_phy_debug(hw, I40E_PHY_DEBUG_ALL, 2401 NULL); 2402 ret = i40e_led_get_phy(hw, &temp_status, 2403 &pf->phy_led_val); 2404 pf->led_status = temp_status; 2405 } 2406 return blink_freq; 2407 case ETHTOOL_ID_ON: 2408 if (!(pf->hw_features & I40E_HW_PHY_CONTROLS_LEDS)) 2409 i40e_led_set(hw, 0xf, false); 2410 else 2411 ret = i40e_led_set_phy(hw, true, pf->led_status, 0); 2412 break; 2413 case ETHTOOL_ID_OFF: 2414 if (!(pf->hw_features & I40E_HW_PHY_CONTROLS_LEDS)) 2415 i40e_led_set(hw, 0x0, false); 2416 else 2417 ret = i40e_led_set_phy(hw, false, pf->led_status, 0); 2418 break; 2419 case ETHTOOL_ID_INACTIVE: 2420 if (!(pf->hw_features & I40E_HW_PHY_CONTROLS_LEDS)) { 2421 i40e_led_set(hw, pf->led_status, false); 2422 } else { 2423 ret = i40e_led_set_phy(hw, false, pf->led_status, 2424 (pf->phy_led_val | 2425 I40E_PHY_LED_MODE_ORIG)); 2426 if (!(hw->flags & I40E_HW_FLAG_AQ_PHY_ACCESS_CAPABLE)) 2427 i40e_aq_set_phy_debug(hw, 0, NULL); 2428 } 2429 break; 2430 default: 2431 break; 2432 } 2433 if (ret) 2434 return -ENOENT; 2435 else 2436 return 0; 2437 } 2438 2439 /* NOTE: i40e hardware uses a conversion factor of 2 for Interrupt 2440 * Throttle Rate (ITR) ie. ITR(1) = 2us ITR(10) = 20 us, and also 2441 * 125us (8000 interrupts per second) == ITR(62) 2442 */ 2443 2444 /** 2445 * __i40e_get_coalesce - get per-queue coalesce settings 2446 * @netdev: the netdev to check 2447 * @ec: ethtool coalesce data structure 2448 * @queue: which queue to pick 2449 * 2450 * Gets the per-queue settings for coalescence. Specifically Rx and Tx usecs 2451 * are per queue. If queue is <0 then we default to queue 0 as the 2452 * representative value. 2453 **/ 2454 static int __i40e_get_coalesce(struct net_device *netdev, 2455 struct ethtool_coalesce *ec, 2456 int queue) 2457 { 2458 struct i40e_netdev_priv *np = netdev_priv(netdev); 2459 struct i40e_ring *rx_ring, *tx_ring; 2460 struct i40e_vsi *vsi = np->vsi; 2461 2462 ec->tx_max_coalesced_frames_irq = vsi->work_limit; 2463 ec->rx_max_coalesced_frames_irq = vsi->work_limit; 2464 2465 /* rx and tx usecs has per queue value. If user doesn't specify the 2466 * queue, return queue 0's value to represent. 2467 */ 2468 if (queue < 0) 2469 queue = 0; 2470 else if (queue >= vsi->num_queue_pairs) 2471 return -EINVAL; 2472 2473 rx_ring = vsi->rx_rings[queue]; 2474 tx_ring = vsi->tx_rings[queue]; 2475 2476 if (ITR_IS_DYNAMIC(rx_ring->itr_setting)) 2477 ec->use_adaptive_rx_coalesce = 1; 2478 2479 if (ITR_IS_DYNAMIC(tx_ring->itr_setting)) 2480 ec->use_adaptive_tx_coalesce = 1; 2481 2482 ec->rx_coalesce_usecs = rx_ring->itr_setting & ~I40E_ITR_DYNAMIC; 2483 ec->tx_coalesce_usecs = tx_ring->itr_setting & ~I40E_ITR_DYNAMIC; 2484 2485 /* we use the _usecs_high to store/set the interrupt rate limit 2486 * that the hardware supports, that almost but not quite 2487 * fits the original intent of the ethtool variable, 2488 * the rx_coalesce_usecs_high limits total interrupts 2489 * per second from both tx/rx sources. 2490 */ 2491 ec->rx_coalesce_usecs_high = vsi->int_rate_limit; 2492 ec->tx_coalesce_usecs_high = vsi->int_rate_limit; 2493 2494 return 0; 2495 } 2496 2497 /** 2498 * i40e_get_coalesce - get a netdev's coalesce settings 2499 * @netdev: the netdev to check 2500 * @ec: ethtool coalesce data structure 2501 * 2502 * Gets the coalesce settings for a particular netdev. Note that if user has 2503 * modified per-queue settings, this only guarantees to represent queue 0. See 2504 * __i40e_get_coalesce for more details. 2505 **/ 2506 static int i40e_get_coalesce(struct net_device *netdev, 2507 struct ethtool_coalesce *ec) 2508 { 2509 return __i40e_get_coalesce(netdev, ec, -1); 2510 } 2511 2512 /** 2513 * i40e_get_per_queue_coalesce - gets coalesce settings for particular queue 2514 * @netdev: netdev structure 2515 * @ec: ethtool's coalesce settings 2516 * @queue: the particular queue to read 2517 * 2518 * Will read a specific queue's coalesce settings 2519 **/ 2520 static int i40e_get_per_queue_coalesce(struct net_device *netdev, u32 queue, 2521 struct ethtool_coalesce *ec) 2522 { 2523 return __i40e_get_coalesce(netdev, ec, queue); 2524 } 2525 2526 /** 2527 * i40e_set_itr_per_queue - set ITR values for specific queue 2528 * @vsi: the VSI to set values for 2529 * @ec: coalesce settings from ethtool 2530 * @queue: the queue to modify 2531 * 2532 * Change the ITR settings for a specific queue. 2533 **/ 2534 static void i40e_set_itr_per_queue(struct i40e_vsi *vsi, 2535 struct ethtool_coalesce *ec, 2536 int queue) 2537 { 2538 struct i40e_ring *rx_ring = vsi->rx_rings[queue]; 2539 struct i40e_ring *tx_ring = vsi->tx_rings[queue]; 2540 struct i40e_pf *pf = vsi->back; 2541 struct i40e_hw *hw = &pf->hw; 2542 struct i40e_q_vector *q_vector; 2543 u16 intrl; 2544 2545 intrl = i40e_intrl_usec_to_reg(vsi->int_rate_limit); 2546 2547 rx_ring->itr_setting = ITR_REG_ALIGN(ec->rx_coalesce_usecs); 2548 tx_ring->itr_setting = ITR_REG_ALIGN(ec->tx_coalesce_usecs); 2549 2550 if (ec->use_adaptive_rx_coalesce) 2551 rx_ring->itr_setting |= I40E_ITR_DYNAMIC; 2552 else 2553 rx_ring->itr_setting &= ~I40E_ITR_DYNAMIC; 2554 2555 if (ec->use_adaptive_tx_coalesce) 2556 tx_ring->itr_setting |= I40E_ITR_DYNAMIC; 2557 else 2558 tx_ring->itr_setting &= ~I40E_ITR_DYNAMIC; 2559 2560 q_vector = rx_ring->q_vector; 2561 q_vector->rx.target_itr = ITR_TO_REG(rx_ring->itr_setting); 2562 2563 q_vector = tx_ring->q_vector; 2564 q_vector->tx.target_itr = ITR_TO_REG(tx_ring->itr_setting); 2565 2566 /* The interrupt handler itself will take care of programming 2567 * the Tx and Rx ITR values based on the values we have entered 2568 * into the q_vector, no need to write the values now. 2569 */ 2570 2571 wr32(hw, I40E_PFINT_RATEN(q_vector->reg_idx), intrl); 2572 i40e_flush(hw); 2573 } 2574 2575 /** 2576 * __i40e_set_coalesce - set coalesce settings for particular queue 2577 * @netdev: the netdev to change 2578 * @ec: ethtool coalesce settings 2579 * @queue: the queue to change 2580 * 2581 * Sets the coalesce settings for a particular queue. 2582 **/ 2583 static int __i40e_set_coalesce(struct net_device *netdev, 2584 struct ethtool_coalesce *ec, 2585 int queue) 2586 { 2587 struct i40e_netdev_priv *np = netdev_priv(netdev); 2588 u16 intrl_reg, cur_rx_itr, cur_tx_itr; 2589 struct i40e_vsi *vsi = np->vsi; 2590 struct i40e_pf *pf = vsi->back; 2591 int i; 2592 2593 if (ec->tx_max_coalesced_frames_irq || ec->rx_max_coalesced_frames_irq) 2594 vsi->work_limit = ec->tx_max_coalesced_frames_irq; 2595 2596 if (queue < 0) { 2597 cur_rx_itr = vsi->rx_rings[0]->itr_setting; 2598 cur_tx_itr = vsi->tx_rings[0]->itr_setting; 2599 } else if (queue < vsi->num_queue_pairs) { 2600 cur_rx_itr = vsi->rx_rings[queue]->itr_setting; 2601 cur_tx_itr = vsi->tx_rings[queue]->itr_setting; 2602 } else { 2603 netif_info(pf, drv, netdev, "Invalid queue value, queue range is 0 - %d\n", 2604 vsi->num_queue_pairs - 1); 2605 return -EINVAL; 2606 } 2607 2608 cur_tx_itr &= ~I40E_ITR_DYNAMIC; 2609 cur_rx_itr &= ~I40E_ITR_DYNAMIC; 2610 2611 /* tx_coalesce_usecs_high is ignored, use rx-usecs-high instead */ 2612 if (ec->tx_coalesce_usecs_high != vsi->int_rate_limit) { 2613 netif_info(pf, drv, netdev, "tx-usecs-high is not used, please program rx-usecs-high\n"); 2614 return -EINVAL; 2615 } 2616 2617 if (ec->rx_coalesce_usecs_high > INTRL_REG_TO_USEC(I40E_MAX_INTRL)) { 2618 netif_info(pf, drv, netdev, "Invalid value, rx-usecs-high range is 0-%lu\n", 2619 INTRL_REG_TO_USEC(I40E_MAX_INTRL)); 2620 return -EINVAL; 2621 } 2622 2623 if (ec->rx_coalesce_usecs != cur_rx_itr && 2624 ec->use_adaptive_rx_coalesce) { 2625 netif_info(pf, drv, netdev, "RX interrupt moderation cannot be changed if adaptive-rx is enabled.\n"); 2626 return -EINVAL; 2627 } 2628 2629 if (ec->rx_coalesce_usecs > I40E_MAX_ITR) { 2630 netif_info(pf, drv, netdev, "Invalid value, rx-usecs range is 0-8160\n"); 2631 return -EINVAL; 2632 } 2633 2634 if (ec->tx_coalesce_usecs != cur_tx_itr && 2635 ec->use_adaptive_tx_coalesce) { 2636 netif_info(pf, drv, netdev, "TX interrupt moderation cannot be changed if adaptive-tx is enabled.\n"); 2637 return -EINVAL; 2638 } 2639 2640 if (ec->tx_coalesce_usecs > I40E_MAX_ITR) { 2641 netif_info(pf, drv, netdev, "Invalid value, tx-usecs range is 0-8160\n"); 2642 return -EINVAL; 2643 } 2644 2645 if (ec->use_adaptive_rx_coalesce && !cur_rx_itr) 2646 ec->rx_coalesce_usecs = I40E_MIN_ITR; 2647 2648 if (ec->use_adaptive_tx_coalesce && !cur_tx_itr) 2649 ec->tx_coalesce_usecs = I40E_MIN_ITR; 2650 2651 intrl_reg = i40e_intrl_usec_to_reg(ec->rx_coalesce_usecs_high); 2652 vsi->int_rate_limit = INTRL_REG_TO_USEC(intrl_reg); 2653 if (vsi->int_rate_limit != ec->rx_coalesce_usecs_high) { 2654 netif_info(pf, drv, netdev, "Interrupt rate limit rounded down to %d\n", 2655 vsi->int_rate_limit); 2656 } 2657 2658 /* rx and tx usecs has per queue value. If user doesn't specify the 2659 * queue, apply to all queues. 2660 */ 2661 if (queue < 0) { 2662 for (i = 0; i < vsi->num_queue_pairs; i++) 2663 i40e_set_itr_per_queue(vsi, ec, i); 2664 } else { 2665 i40e_set_itr_per_queue(vsi, ec, queue); 2666 } 2667 2668 return 0; 2669 } 2670 2671 /** 2672 * i40e_set_coalesce - set coalesce settings for every queue on the netdev 2673 * @netdev: the netdev to change 2674 * @ec: ethtool coalesce settings 2675 * 2676 * This will set each queue to the same coalesce settings. 2677 **/ 2678 static int i40e_set_coalesce(struct net_device *netdev, 2679 struct ethtool_coalesce *ec) 2680 { 2681 return __i40e_set_coalesce(netdev, ec, -1); 2682 } 2683 2684 /** 2685 * i40e_set_per_queue_coalesce - set specific queue's coalesce settings 2686 * @netdev: the netdev to change 2687 * @ec: ethtool's coalesce settings 2688 * @queue: the queue to change 2689 * 2690 * Sets the specified queue's coalesce settings. 2691 **/ 2692 static int i40e_set_per_queue_coalesce(struct net_device *netdev, u32 queue, 2693 struct ethtool_coalesce *ec) 2694 { 2695 return __i40e_set_coalesce(netdev, ec, queue); 2696 } 2697 2698 /** 2699 * i40e_get_rss_hash_opts - Get RSS hash Input Set for each flow type 2700 * @pf: pointer to the physical function struct 2701 * @cmd: ethtool rxnfc command 2702 * 2703 * Returns Success if the flow is supported, else Invalid Input. 2704 **/ 2705 static int i40e_get_rss_hash_opts(struct i40e_pf *pf, struct ethtool_rxnfc *cmd) 2706 { 2707 struct i40e_hw *hw = &pf->hw; 2708 u8 flow_pctype = 0; 2709 u64 i_set = 0; 2710 2711 cmd->data = 0; 2712 2713 switch (cmd->flow_type) { 2714 case TCP_V4_FLOW: 2715 flow_pctype = I40E_FILTER_PCTYPE_NONF_IPV4_TCP; 2716 break; 2717 case UDP_V4_FLOW: 2718 flow_pctype = I40E_FILTER_PCTYPE_NONF_IPV4_UDP; 2719 break; 2720 case TCP_V6_FLOW: 2721 flow_pctype = I40E_FILTER_PCTYPE_NONF_IPV6_TCP; 2722 break; 2723 case UDP_V6_FLOW: 2724 flow_pctype = I40E_FILTER_PCTYPE_NONF_IPV6_UDP; 2725 break; 2726 case SCTP_V4_FLOW: 2727 case AH_ESP_V4_FLOW: 2728 case AH_V4_FLOW: 2729 case ESP_V4_FLOW: 2730 case IPV4_FLOW: 2731 case SCTP_V6_FLOW: 2732 case AH_ESP_V6_FLOW: 2733 case AH_V6_FLOW: 2734 case ESP_V6_FLOW: 2735 case IPV6_FLOW: 2736 /* Default is src/dest for IP, no matter the L4 hashing */ 2737 cmd->data |= RXH_IP_SRC | RXH_IP_DST; 2738 break; 2739 default: 2740 return -EINVAL; 2741 } 2742 2743 /* Read flow based hash input set register */ 2744 if (flow_pctype) { 2745 i_set = (u64)i40e_read_rx_ctl(hw, I40E_GLQF_HASH_INSET(0, 2746 flow_pctype)) | 2747 ((u64)i40e_read_rx_ctl(hw, I40E_GLQF_HASH_INSET(1, 2748 flow_pctype)) << 32); 2749 } 2750 2751 /* Process bits of hash input set */ 2752 if (i_set) { 2753 if (i_set & I40E_L4_SRC_MASK) 2754 cmd->data |= RXH_L4_B_0_1; 2755 if (i_set & I40E_L4_DST_MASK) 2756 cmd->data |= RXH_L4_B_2_3; 2757 2758 if (cmd->flow_type == TCP_V4_FLOW || 2759 cmd->flow_type == UDP_V4_FLOW) { 2760 if (i_set & I40E_L3_SRC_MASK) 2761 cmd->data |= RXH_IP_SRC; 2762 if (i_set & I40E_L3_DST_MASK) 2763 cmd->data |= RXH_IP_DST; 2764 } else if (cmd->flow_type == TCP_V6_FLOW || 2765 cmd->flow_type == UDP_V6_FLOW) { 2766 if (i_set & I40E_L3_V6_SRC_MASK) 2767 cmd->data |= RXH_IP_SRC; 2768 if (i_set & I40E_L3_V6_DST_MASK) 2769 cmd->data |= RXH_IP_DST; 2770 } 2771 } 2772 2773 return 0; 2774 } 2775 2776 /** 2777 * i40e_check_mask - Check whether a mask field is set 2778 * @mask: the full mask value 2779 * @field: mask of the field to check 2780 * 2781 * If the given mask is fully set, return positive value. If the mask for the 2782 * field is fully unset, return zero. Otherwise return a negative error code. 2783 **/ 2784 static int i40e_check_mask(u64 mask, u64 field) 2785 { 2786 u64 value = mask & field; 2787 2788 if (value == field) 2789 return 1; 2790 else if (!value) 2791 return 0; 2792 else 2793 return -1; 2794 } 2795 2796 /** 2797 * i40e_parse_rx_flow_user_data - Deconstruct user-defined data 2798 * @fsp: pointer to rx flow specification 2799 * @data: pointer to userdef data structure for storage 2800 * 2801 * Read the user-defined data and deconstruct the value into a structure. No 2802 * other code should read the user-defined data, so as to ensure that every 2803 * place consistently reads the value correctly. 2804 * 2805 * The user-defined field is a 64bit Big Endian format value, which we 2806 * deconstruct by reading bits or bit fields from it. Single bit flags shall 2807 * be defined starting from the highest bits, while small bit field values 2808 * shall be defined starting from the lowest bits. 2809 * 2810 * Returns 0 if the data is valid, and non-zero if the userdef data is invalid 2811 * and the filter should be rejected. The data structure will always be 2812 * modified even if FLOW_EXT is not set. 2813 * 2814 **/ 2815 static int i40e_parse_rx_flow_user_data(struct ethtool_rx_flow_spec *fsp, 2816 struct i40e_rx_flow_userdef *data) 2817 { 2818 u64 value, mask; 2819 int valid; 2820 2821 /* Zero memory first so it's always consistent. */ 2822 memset(data, 0, sizeof(*data)); 2823 2824 if (!(fsp->flow_type & FLOW_EXT)) 2825 return 0; 2826 2827 value = be64_to_cpu(*((__be64 *)fsp->h_ext.data)); 2828 mask = be64_to_cpu(*((__be64 *)fsp->m_ext.data)); 2829 2830 #define I40E_USERDEF_FLEX_WORD GENMASK_ULL(15, 0) 2831 #define I40E_USERDEF_FLEX_OFFSET GENMASK_ULL(31, 16) 2832 #define I40E_USERDEF_FLEX_FILTER GENMASK_ULL(31, 0) 2833 2834 valid = i40e_check_mask(mask, I40E_USERDEF_FLEX_FILTER); 2835 if (valid < 0) { 2836 return -EINVAL; 2837 } else if (valid) { 2838 data->flex_word = value & I40E_USERDEF_FLEX_WORD; 2839 data->flex_offset = 2840 (value & I40E_USERDEF_FLEX_OFFSET) >> 16; 2841 data->flex_filter = true; 2842 } 2843 2844 return 0; 2845 } 2846 2847 /** 2848 * i40e_fill_rx_flow_user_data - Fill in user-defined data field 2849 * @fsp: pointer to rx_flow specification 2850 * @data: pointer to return userdef data 2851 * 2852 * Reads the userdef data structure and properly fills in the user defined 2853 * fields of the rx_flow_spec. 2854 **/ 2855 static void i40e_fill_rx_flow_user_data(struct ethtool_rx_flow_spec *fsp, 2856 struct i40e_rx_flow_userdef *data) 2857 { 2858 u64 value = 0, mask = 0; 2859 2860 if (data->flex_filter) { 2861 value |= data->flex_word; 2862 value |= (u64)data->flex_offset << 16; 2863 mask |= I40E_USERDEF_FLEX_FILTER; 2864 } 2865 2866 if (value || mask) 2867 fsp->flow_type |= FLOW_EXT; 2868 2869 *((__be64 *)fsp->h_ext.data) = cpu_to_be64(value); 2870 *((__be64 *)fsp->m_ext.data) = cpu_to_be64(mask); 2871 } 2872 2873 /** 2874 * i40e_get_ethtool_fdir_all - Populates the rule count of a command 2875 * @pf: Pointer to the physical function struct 2876 * @cmd: The command to get or set Rx flow classification rules 2877 * @rule_locs: Array of used rule locations 2878 * 2879 * This function populates both the total and actual rule count of 2880 * the ethtool flow classification command 2881 * 2882 * Returns 0 on success or -EMSGSIZE if entry not found 2883 **/ 2884 static int i40e_get_ethtool_fdir_all(struct i40e_pf *pf, 2885 struct ethtool_rxnfc *cmd, 2886 u32 *rule_locs) 2887 { 2888 struct i40e_fdir_filter *rule; 2889 struct hlist_node *node2; 2890 int cnt = 0; 2891 2892 /* report total rule count */ 2893 cmd->data = i40e_get_fd_cnt_all(pf); 2894 2895 hlist_for_each_entry_safe(rule, node2, 2896 &pf->fdir_filter_list, fdir_node) { 2897 if (cnt == cmd->rule_cnt) 2898 return -EMSGSIZE; 2899 2900 rule_locs[cnt] = rule->fd_id; 2901 cnt++; 2902 } 2903 2904 cmd->rule_cnt = cnt; 2905 2906 return 0; 2907 } 2908 2909 /** 2910 * i40e_get_ethtool_fdir_entry - Look up a filter based on Rx flow 2911 * @pf: Pointer to the physical function struct 2912 * @cmd: The command to get or set Rx flow classification rules 2913 * 2914 * This function looks up a filter based on the Rx flow classification 2915 * command and fills the flow spec info for it if found 2916 * 2917 * Returns 0 on success or -EINVAL if filter not found 2918 **/ 2919 static int i40e_get_ethtool_fdir_entry(struct i40e_pf *pf, 2920 struct ethtool_rxnfc *cmd) 2921 { 2922 struct ethtool_rx_flow_spec *fsp = 2923 (struct ethtool_rx_flow_spec *)&cmd->fs; 2924 struct i40e_rx_flow_userdef userdef = {0}; 2925 struct i40e_fdir_filter *rule = NULL; 2926 struct hlist_node *node2; 2927 u64 input_set; 2928 u16 index; 2929 2930 hlist_for_each_entry_safe(rule, node2, 2931 &pf->fdir_filter_list, fdir_node) { 2932 if (fsp->location <= rule->fd_id) 2933 break; 2934 } 2935 2936 if (!rule || fsp->location != rule->fd_id) 2937 return -EINVAL; 2938 2939 fsp->flow_type = rule->flow_type; 2940 if (fsp->flow_type == IP_USER_FLOW) { 2941 fsp->h_u.usr_ip4_spec.ip_ver = ETH_RX_NFC_IP4; 2942 fsp->h_u.usr_ip4_spec.proto = 0; 2943 fsp->m_u.usr_ip4_spec.proto = 0; 2944 } 2945 2946 /* Reverse the src and dest notion, since the HW views them from 2947 * Tx perspective where as the user expects it from Rx filter view. 2948 */ 2949 fsp->h_u.tcp_ip4_spec.psrc = rule->dst_port; 2950 fsp->h_u.tcp_ip4_spec.pdst = rule->src_port; 2951 fsp->h_u.tcp_ip4_spec.ip4src = rule->dst_ip; 2952 fsp->h_u.tcp_ip4_spec.ip4dst = rule->src_ip; 2953 2954 switch (rule->flow_type) { 2955 case SCTP_V4_FLOW: 2956 index = I40E_FILTER_PCTYPE_NONF_IPV4_SCTP; 2957 break; 2958 case TCP_V4_FLOW: 2959 index = I40E_FILTER_PCTYPE_NONF_IPV4_TCP; 2960 break; 2961 case UDP_V4_FLOW: 2962 index = I40E_FILTER_PCTYPE_NONF_IPV4_UDP; 2963 break; 2964 case IP_USER_FLOW: 2965 index = I40E_FILTER_PCTYPE_NONF_IPV4_OTHER; 2966 break; 2967 default: 2968 /* If we have stored a filter with a flow type not listed here 2969 * it is almost certainly a driver bug. WARN(), and then 2970 * assign the input_set as if all fields are enabled to avoid 2971 * reading unassigned memory. 2972 */ 2973 WARN(1, "Missing input set index for flow_type %d\n", 2974 rule->flow_type); 2975 input_set = 0xFFFFFFFFFFFFFFFFULL; 2976 goto no_input_set; 2977 } 2978 2979 input_set = i40e_read_fd_input_set(pf, index); 2980 2981 no_input_set: 2982 if (input_set & I40E_L3_SRC_MASK) 2983 fsp->m_u.tcp_ip4_spec.ip4src = htonl(0xFFFFFFFF); 2984 2985 if (input_set & I40E_L3_DST_MASK) 2986 fsp->m_u.tcp_ip4_spec.ip4dst = htonl(0xFFFFFFFF); 2987 2988 if (input_set & I40E_L4_SRC_MASK) 2989 fsp->m_u.tcp_ip4_spec.psrc = htons(0xFFFF); 2990 2991 if (input_set & I40E_L4_DST_MASK) 2992 fsp->m_u.tcp_ip4_spec.pdst = htons(0xFFFF); 2993 2994 if (rule->dest_ctl == I40E_FILTER_PROGRAM_DESC_DEST_DROP_PACKET) 2995 fsp->ring_cookie = RX_CLS_FLOW_DISC; 2996 else 2997 fsp->ring_cookie = rule->q_index; 2998 2999 if (rule->dest_vsi != pf->vsi[pf->lan_vsi]->id) { 3000 struct i40e_vsi *vsi; 3001 3002 vsi = i40e_find_vsi_from_id(pf, rule->dest_vsi); 3003 if (vsi && vsi->type == I40E_VSI_SRIOV) { 3004 /* VFs are zero-indexed by the driver, but ethtool 3005 * expects them to be one-indexed, so add one here 3006 */ 3007 u64 ring_vf = vsi->vf_id + 1; 3008 3009 ring_vf <<= ETHTOOL_RX_FLOW_SPEC_RING_VF_OFF; 3010 fsp->ring_cookie |= ring_vf; 3011 } 3012 } 3013 3014 if (rule->flex_filter) { 3015 userdef.flex_filter = true; 3016 userdef.flex_word = be16_to_cpu(rule->flex_word); 3017 userdef.flex_offset = rule->flex_offset; 3018 } 3019 3020 i40e_fill_rx_flow_user_data(fsp, &userdef); 3021 3022 return 0; 3023 } 3024 3025 /** 3026 * i40e_get_rxnfc - command to get RX flow classification rules 3027 * @netdev: network interface device structure 3028 * @cmd: ethtool rxnfc command 3029 * @rule_locs: pointer to store rule data 3030 * 3031 * Returns Success if the command is supported. 3032 **/ 3033 static int i40e_get_rxnfc(struct net_device *netdev, struct ethtool_rxnfc *cmd, 3034 u32 *rule_locs) 3035 { 3036 struct i40e_netdev_priv *np = netdev_priv(netdev); 3037 struct i40e_vsi *vsi = np->vsi; 3038 struct i40e_pf *pf = vsi->back; 3039 int ret = -EOPNOTSUPP; 3040 3041 switch (cmd->cmd) { 3042 case ETHTOOL_GRXRINGS: 3043 cmd->data = vsi->rss_size; 3044 ret = 0; 3045 break; 3046 case ETHTOOL_GRXFH: 3047 ret = i40e_get_rss_hash_opts(pf, cmd); 3048 break; 3049 case ETHTOOL_GRXCLSRLCNT: 3050 cmd->rule_cnt = pf->fdir_pf_active_filters; 3051 /* report total rule count */ 3052 cmd->data = i40e_get_fd_cnt_all(pf); 3053 ret = 0; 3054 break; 3055 case ETHTOOL_GRXCLSRULE: 3056 ret = i40e_get_ethtool_fdir_entry(pf, cmd); 3057 break; 3058 case ETHTOOL_GRXCLSRLALL: 3059 ret = i40e_get_ethtool_fdir_all(pf, cmd, rule_locs); 3060 break; 3061 default: 3062 break; 3063 } 3064 3065 return ret; 3066 } 3067 3068 /** 3069 * i40e_get_rss_hash_bits - Read RSS Hash bits from register 3070 * @nfc: pointer to user request 3071 * @i_setc: bits currently set 3072 * 3073 * Returns value of bits to be set per user request 3074 **/ 3075 static u64 i40e_get_rss_hash_bits(struct ethtool_rxnfc *nfc, u64 i_setc) 3076 { 3077 u64 i_set = i_setc; 3078 u64 src_l3 = 0, dst_l3 = 0; 3079 3080 if (nfc->data & RXH_L4_B_0_1) 3081 i_set |= I40E_L4_SRC_MASK; 3082 else 3083 i_set &= ~I40E_L4_SRC_MASK; 3084 if (nfc->data & RXH_L4_B_2_3) 3085 i_set |= I40E_L4_DST_MASK; 3086 else 3087 i_set &= ~I40E_L4_DST_MASK; 3088 3089 if (nfc->flow_type == TCP_V6_FLOW || nfc->flow_type == UDP_V6_FLOW) { 3090 src_l3 = I40E_L3_V6_SRC_MASK; 3091 dst_l3 = I40E_L3_V6_DST_MASK; 3092 } else if (nfc->flow_type == TCP_V4_FLOW || 3093 nfc->flow_type == UDP_V4_FLOW) { 3094 src_l3 = I40E_L3_SRC_MASK; 3095 dst_l3 = I40E_L3_DST_MASK; 3096 } else { 3097 /* Any other flow type are not supported here */ 3098 return i_set; 3099 } 3100 3101 if (nfc->data & RXH_IP_SRC) 3102 i_set |= src_l3; 3103 else 3104 i_set &= ~src_l3; 3105 if (nfc->data & RXH_IP_DST) 3106 i_set |= dst_l3; 3107 else 3108 i_set &= ~dst_l3; 3109 3110 return i_set; 3111 } 3112 3113 /** 3114 * i40e_set_rss_hash_opt - Enable/Disable flow types for RSS hash 3115 * @pf: pointer to the physical function struct 3116 * @nfc: ethtool rxnfc command 3117 * 3118 * Returns Success if the flow input set is supported. 3119 **/ 3120 static int i40e_set_rss_hash_opt(struct i40e_pf *pf, struct ethtool_rxnfc *nfc) 3121 { 3122 struct i40e_hw *hw = &pf->hw; 3123 u64 hena = (u64)i40e_read_rx_ctl(hw, I40E_PFQF_HENA(0)) | 3124 ((u64)i40e_read_rx_ctl(hw, I40E_PFQF_HENA(1)) << 32); 3125 u8 flow_pctype = 0; 3126 u64 i_set, i_setc; 3127 3128 if (pf->flags & I40E_FLAG_MFP_ENABLED) { 3129 dev_err(&pf->pdev->dev, 3130 "Change of RSS hash input set is not supported when MFP mode is enabled\n"); 3131 return -EOPNOTSUPP; 3132 } 3133 3134 /* RSS does not support anything other than hashing 3135 * to queues on src and dst IPs and ports 3136 */ 3137 if (nfc->data & ~(RXH_IP_SRC | RXH_IP_DST | 3138 RXH_L4_B_0_1 | RXH_L4_B_2_3)) 3139 return -EINVAL; 3140 3141 switch (nfc->flow_type) { 3142 case TCP_V4_FLOW: 3143 flow_pctype = I40E_FILTER_PCTYPE_NONF_IPV4_TCP; 3144 if (pf->hw_features & I40E_HW_MULTIPLE_TCP_UDP_RSS_PCTYPE) 3145 hena |= 3146 BIT_ULL(I40E_FILTER_PCTYPE_NONF_IPV4_TCP_SYN_NO_ACK); 3147 break; 3148 case TCP_V6_FLOW: 3149 flow_pctype = I40E_FILTER_PCTYPE_NONF_IPV6_TCP; 3150 if (pf->hw_features & I40E_HW_MULTIPLE_TCP_UDP_RSS_PCTYPE) 3151 hena |= 3152 BIT_ULL(I40E_FILTER_PCTYPE_NONF_IPV4_TCP_SYN_NO_ACK); 3153 if (pf->hw_features & I40E_HW_MULTIPLE_TCP_UDP_RSS_PCTYPE) 3154 hena |= 3155 BIT_ULL(I40E_FILTER_PCTYPE_NONF_IPV6_TCP_SYN_NO_ACK); 3156 break; 3157 case UDP_V4_FLOW: 3158 flow_pctype = I40E_FILTER_PCTYPE_NONF_IPV4_UDP; 3159 if (pf->hw_features & I40E_HW_MULTIPLE_TCP_UDP_RSS_PCTYPE) 3160 hena |= 3161 BIT_ULL(I40E_FILTER_PCTYPE_NONF_UNICAST_IPV4_UDP) | 3162 BIT_ULL(I40E_FILTER_PCTYPE_NONF_MULTICAST_IPV4_UDP); 3163 3164 hena |= BIT_ULL(I40E_FILTER_PCTYPE_FRAG_IPV4); 3165 break; 3166 case UDP_V6_FLOW: 3167 flow_pctype = I40E_FILTER_PCTYPE_NONF_IPV6_UDP; 3168 if (pf->hw_features & I40E_HW_MULTIPLE_TCP_UDP_RSS_PCTYPE) 3169 hena |= 3170 BIT_ULL(I40E_FILTER_PCTYPE_NONF_UNICAST_IPV6_UDP) | 3171 BIT_ULL(I40E_FILTER_PCTYPE_NONF_MULTICAST_IPV6_UDP); 3172 3173 hena |= BIT_ULL(I40E_FILTER_PCTYPE_FRAG_IPV6); 3174 break; 3175 case AH_ESP_V4_FLOW: 3176 case AH_V4_FLOW: 3177 case ESP_V4_FLOW: 3178 case SCTP_V4_FLOW: 3179 if ((nfc->data & RXH_L4_B_0_1) || 3180 (nfc->data & RXH_L4_B_2_3)) 3181 return -EINVAL; 3182 hena |= BIT_ULL(I40E_FILTER_PCTYPE_NONF_IPV4_OTHER); 3183 break; 3184 case AH_ESP_V6_FLOW: 3185 case AH_V6_FLOW: 3186 case ESP_V6_FLOW: 3187 case SCTP_V6_FLOW: 3188 if ((nfc->data & RXH_L4_B_0_1) || 3189 (nfc->data & RXH_L4_B_2_3)) 3190 return -EINVAL; 3191 hena |= BIT_ULL(I40E_FILTER_PCTYPE_NONF_IPV6_OTHER); 3192 break; 3193 case IPV4_FLOW: 3194 hena |= BIT_ULL(I40E_FILTER_PCTYPE_NONF_IPV4_OTHER) | 3195 BIT_ULL(I40E_FILTER_PCTYPE_FRAG_IPV4); 3196 break; 3197 case IPV6_FLOW: 3198 hena |= BIT_ULL(I40E_FILTER_PCTYPE_NONF_IPV6_OTHER) | 3199 BIT_ULL(I40E_FILTER_PCTYPE_FRAG_IPV6); 3200 break; 3201 default: 3202 return -EINVAL; 3203 } 3204 3205 if (flow_pctype) { 3206 i_setc = (u64)i40e_read_rx_ctl(hw, I40E_GLQF_HASH_INSET(0, 3207 flow_pctype)) | 3208 ((u64)i40e_read_rx_ctl(hw, I40E_GLQF_HASH_INSET(1, 3209 flow_pctype)) << 32); 3210 i_set = i40e_get_rss_hash_bits(nfc, i_setc); 3211 i40e_write_rx_ctl(hw, I40E_GLQF_HASH_INSET(0, flow_pctype), 3212 (u32)i_set); 3213 i40e_write_rx_ctl(hw, I40E_GLQF_HASH_INSET(1, flow_pctype), 3214 (u32)(i_set >> 32)); 3215 hena |= BIT_ULL(flow_pctype); 3216 } 3217 3218 i40e_write_rx_ctl(hw, I40E_PFQF_HENA(0), (u32)hena); 3219 i40e_write_rx_ctl(hw, I40E_PFQF_HENA(1), (u32)(hena >> 32)); 3220 i40e_flush(hw); 3221 3222 return 0; 3223 } 3224 3225 /** 3226 * i40e_update_ethtool_fdir_entry - Updates the fdir filter entry 3227 * @vsi: Pointer to the targeted VSI 3228 * @input: The filter to update or NULL to indicate deletion 3229 * @sw_idx: Software index to the filter 3230 * @cmd: The command to get or set Rx flow classification rules 3231 * 3232 * This function updates (or deletes) a Flow Director entry from 3233 * the hlist of the corresponding PF 3234 * 3235 * Returns 0 on success 3236 **/ 3237 static int i40e_update_ethtool_fdir_entry(struct i40e_vsi *vsi, 3238 struct i40e_fdir_filter *input, 3239 u16 sw_idx, 3240 struct ethtool_rxnfc *cmd) 3241 { 3242 struct i40e_fdir_filter *rule, *parent; 3243 struct i40e_pf *pf = vsi->back; 3244 struct hlist_node *node2; 3245 int err = -EINVAL; 3246 3247 parent = NULL; 3248 rule = NULL; 3249 3250 hlist_for_each_entry_safe(rule, node2, 3251 &pf->fdir_filter_list, fdir_node) { 3252 /* hash found, or no matching entry */ 3253 if (rule->fd_id >= sw_idx) 3254 break; 3255 parent = rule; 3256 } 3257 3258 /* if there is an old rule occupying our place remove it */ 3259 if (rule && (rule->fd_id == sw_idx)) { 3260 /* Remove this rule, since we're either deleting it, or 3261 * replacing it. 3262 */ 3263 err = i40e_add_del_fdir(vsi, rule, false); 3264 hlist_del(&rule->fdir_node); 3265 kfree(rule); 3266 pf->fdir_pf_active_filters--; 3267 } 3268 3269 /* If we weren't given an input, this is a delete, so just return the 3270 * error code indicating if there was an entry at the requested slot 3271 */ 3272 if (!input) 3273 return err; 3274 3275 /* Otherwise, install the new rule as requested */ 3276 INIT_HLIST_NODE(&input->fdir_node); 3277 3278 /* add filter to the list */ 3279 if (parent) 3280 hlist_add_behind(&input->fdir_node, &parent->fdir_node); 3281 else 3282 hlist_add_head(&input->fdir_node, 3283 &pf->fdir_filter_list); 3284 3285 /* update counts */ 3286 pf->fdir_pf_active_filters++; 3287 3288 return 0; 3289 } 3290 3291 /** 3292 * i40e_prune_flex_pit_list - Cleanup unused entries in FLX_PIT table 3293 * @pf: pointer to PF structure 3294 * 3295 * This function searches the list of filters and determines which FLX_PIT 3296 * entries are still required. It will prune any entries which are no longer 3297 * in use after the deletion. 3298 **/ 3299 static void i40e_prune_flex_pit_list(struct i40e_pf *pf) 3300 { 3301 struct i40e_flex_pit *entry, *tmp; 3302 struct i40e_fdir_filter *rule; 3303 3304 /* First, we'll check the l3 table */ 3305 list_for_each_entry_safe(entry, tmp, &pf->l3_flex_pit_list, list) { 3306 bool found = false; 3307 3308 hlist_for_each_entry(rule, &pf->fdir_filter_list, fdir_node) { 3309 if (rule->flow_type != IP_USER_FLOW) 3310 continue; 3311 if (rule->flex_filter && 3312 rule->flex_offset == entry->src_offset) { 3313 found = true; 3314 break; 3315 } 3316 } 3317 3318 /* If we didn't find the filter, then we can prune this entry 3319 * from the list. 3320 */ 3321 if (!found) { 3322 list_del(&entry->list); 3323 kfree(entry); 3324 } 3325 } 3326 3327 /* Followed by the L4 table */ 3328 list_for_each_entry_safe(entry, tmp, &pf->l4_flex_pit_list, list) { 3329 bool found = false; 3330 3331 hlist_for_each_entry(rule, &pf->fdir_filter_list, fdir_node) { 3332 /* Skip this filter if it's L3, since we already 3333 * checked those in the above loop 3334 */ 3335 if (rule->flow_type == IP_USER_FLOW) 3336 continue; 3337 if (rule->flex_filter && 3338 rule->flex_offset == entry->src_offset) { 3339 found = true; 3340 break; 3341 } 3342 } 3343 3344 /* If we didn't find the filter, then we can prune this entry 3345 * from the list. 3346 */ 3347 if (!found) { 3348 list_del(&entry->list); 3349 kfree(entry); 3350 } 3351 } 3352 } 3353 3354 /** 3355 * i40e_del_fdir_entry - Deletes a Flow Director filter entry 3356 * @vsi: Pointer to the targeted VSI 3357 * @cmd: The command to get or set Rx flow classification rules 3358 * 3359 * The function removes a Flow Director filter entry from the 3360 * hlist of the corresponding PF 3361 * 3362 * Returns 0 on success 3363 */ 3364 static int i40e_del_fdir_entry(struct i40e_vsi *vsi, 3365 struct ethtool_rxnfc *cmd) 3366 { 3367 struct ethtool_rx_flow_spec *fsp = 3368 (struct ethtool_rx_flow_spec *)&cmd->fs; 3369 struct i40e_pf *pf = vsi->back; 3370 int ret = 0; 3371 3372 if (test_bit(__I40E_RESET_RECOVERY_PENDING, pf->state) || 3373 test_bit(__I40E_RESET_INTR_RECEIVED, pf->state)) 3374 return -EBUSY; 3375 3376 if (test_bit(__I40E_FD_FLUSH_REQUESTED, pf->state)) 3377 return -EBUSY; 3378 3379 ret = i40e_update_ethtool_fdir_entry(vsi, NULL, fsp->location, cmd); 3380 3381 i40e_prune_flex_pit_list(pf); 3382 3383 i40e_fdir_check_and_reenable(pf); 3384 return ret; 3385 } 3386 3387 /** 3388 * i40e_unused_pit_index - Find an unused PIT index for given list 3389 * @pf: the PF data structure 3390 * 3391 * Find the first unused flexible PIT index entry. We search both the L3 and 3392 * L4 flexible PIT lists so that the returned index is unique and unused by 3393 * either currently programmed L3 or L4 filters. We use a bit field as storage 3394 * to track which indexes are already used. 3395 **/ 3396 static u8 i40e_unused_pit_index(struct i40e_pf *pf) 3397 { 3398 unsigned long available_index = 0xFF; 3399 struct i40e_flex_pit *entry; 3400 3401 /* We need to make sure that the new index isn't in use by either L3 3402 * or L4 filters so that IP_USER_FLOW filters can program both L3 and 3403 * L4 to use the same index. 3404 */ 3405 3406 list_for_each_entry(entry, &pf->l4_flex_pit_list, list) 3407 clear_bit(entry->pit_index, &available_index); 3408 3409 list_for_each_entry(entry, &pf->l3_flex_pit_list, list) 3410 clear_bit(entry->pit_index, &available_index); 3411 3412 return find_first_bit(&available_index, 8); 3413 } 3414 3415 /** 3416 * i40e_find_flex_offset - Find an existing flex src_offset 3417 * @flex_pit_list: L3 or L4 flex PIT list 3418 * @src_offset: new src_offset to find 3419 * 3420 * Searches the flex_pit_list for an existing offset. If no offset is 3421 * currently programmed, then this will return an ERR_PTR if there is no space 3422 * to add a new offset, otherwise it returns NULL. 3423 **/ 3424 static 3425 struct i40e_flex_pit *i40e_find_flex_offset(struct list_head *flex_pit_list, 3426 u16 src_offset) 3427 { 3428 struct i40e_flex_pit *entry; 3429 int size = 0; 3430 3431 /* Search for the src_offset first. If we find a matching entry 3432 * already programmed, we can simply re-use it. 3433 */ 3434 list_for_each_entry(entry, flex_pit_list, list) { 3435 size++; 3436 if (entry->src_offset == src_offset) 3437 return entry; 3438 } 3439 3440 /* If we haven't found an entry yet, then the provided src offset has 3441 * not yet been programmed. We will program the src offset later on, 3442 * but we need to indicate whether there is enough space to do so 3443 * here. We'll make use of ERR_PTR for this purpose. 3444 */ 3445 if (size >= I40E_FLEX_PIT_TABLE_SIZE) 3446 return ERR_PTR(-ENOSPC); 3447 3448 return NULL; 3449 } 3450 3451 /** 3452 * i40e_add_flex_offset - Add src_offset to flex PIT table list 3453 * @flex_pit_list: L3 or L4 flex PIT list 3454 * @src_offset: new src_offset to add 3455 * @pit_index: the PIT index to program 3456 * 3457 * This function programs the new src_offset to the list. It is expected that 3458 * i40e_find_flex_offset has already been tried and returned NULL, indicating 3459 * that this offset is not programmed, and that the list has enough space to 3460 * store another offset. 3461 * 3462 * Returns 0 on success, and negative value on error. 3463 **/ 3464 static int i40e_add_flex_offset(struct list_head *flex_pit_list, 3465 u16 src_offset, 3466 u8 pit_index) 3467 { 3468 struct i40e_flex_pit *new_pit, *entry; 3469 3470 new_pit = kzalloc(sizeof(*entry), GFP_KERNEL); 3471 if (!new_pit) 3472 return -ENOMEM; 3473 3474 new_pit->src_offset = src_offset; 3475 new_pit->pit_index = pit_index; 3476 3477 /* We need to insert this item such that the list is sorted by 3478 * src_offset in ascending order. 3479 */ 3480 list_for_each_entry(entry, flex_pit_list, list) { 3481 if (new_pit->src_offset < entry->src_offset) { 3482 list_add_tail(&new_pit->list, &entry->list); 3483 return 0; 3484 } 3485 3486 /* If we found an entry with our offset already programmed we 3487 * can simply return here, after freeing the memory. However, 3488 * if the pit_index does not match we need to report an error. 3489 */ 3490 if (new_pit->src_offset == entry->src_offset) { 3491 int err = 0; 3492 3493 /* If the PIT index is not the same we can't re-use 3494 * the entry, so we must report an error. 3495 */ 3496 if (new_pit->pit_index != entry->pit_index) 3497 err = -EINVAL; 3498 3499 kfree(new_pit); 3500 return err; 3501 } 3502 } 3503 3504 /* If we reached here, then we haven't yet added the item. This means 3505 * that we should add the item at the end of the list. 3506 */ 3507 list_add_tail(&new_pit->list, flex_pit_list); 3508 return 0; 3509 } 3510 3511 /** 3512 * __i40e_reprogram_flex_pit - Re-program specific FLX_PIT table 3513 * @pf: Pointer to the PF structure 3514 * @flex_pit_list: list of flexible src offsets in use 3515 * @flex_pit_start: index to first entry for this section of the table 3516 * 3517 * In order to handle flexible data, the hardware uses a table of values 3518 * called the FLX_PIT table. This table is used to indicate which sections of 3519 * the input correspond to what PIT index values. Unfortunately, hardware is 3520 * very restrictive about programming this table. Entries must be ordered by 3521 * src_offset in ascending order, without duplicates. Additionally, unused 3522 * entries must be set to the unused index value, and must have valid size and 3523 * length according to the src_offset ordering. 3524 * 3525 * This function will reprogram the FLX_PIT register from a book-keeping 3526 * structure that we guarantee is already ordered correctly, and has no more 3527 * than 3 entries. 3528 * 3529 * To make things easier, we only support flexible values of one word length, 3530 * rather than allowing variable length flexible values. 3531 **/ 3532 static void __i40e_reprogram_flex_pit(struct i40e_pf *pf, 3533 struct list_head *flex_pit_list, 3534 int flex_pit_start) 3535 { 3536 struct i40e_flex_pit *entry = NULL; 3537 u16 last_offset = 0; 3538 int i = 0, j = 0; 3539 3540 /* First, loop over the list of flex PIT entries, and reprogram the 3541 * registers. 3542 */ 3543 list_for_each_entry(entry, flex_pit_list, list) { 3544 /* We have to be careful when programming values for the 3545 * largest SRC_OFFSET value. It is possible that adding 3546 * additional empty values at the end would overflow the space 3547 * for the SRC_OFFSET in the FLX_PIT register. To avoid this, 3548 * we check here and add the empty values prior to adding the 3549 * largest value. 3550 * 3551 * To determine this, we will use a loop from i+1 to 3, which 3552 * will determine whether the unused entries would have valid 3553 * SRC_OFFSET. Note that there cannot be extra entries past 3554 * this value, because the only valid values would have been 3555 * larger than I40E_MAX_FLEX_SRC_OFFSET, and thus would not 3556 * have been added to the list in the first place. 3557 */ 3558 for (j = i + 1; j < 3; j++) { 3559 u16 offset = entry->src_offset + j; 3560 int index = flex_pit_start + i; 3561 u32 value = I40E_FLEX_PREP_VAL(I40E_FLEX_DEST_UNUSED, 3562 1, 3563 offset - 3); 3564 3565 if (offset > I40E_MAX_FLEX_SRC_OFFSET) { 3566 i40e_write_rx_ctl(&pf->hw, 3567 I40E_PRTQF_FLX_PIT(index), 3568 value); 3569 i++; 3570 } 3571 } 3572 3573 /* Now, we can program the actual value into the table */ 3574 i40e_write_rx_ctl(&pf->hw, 3575 I40E_PRTQF_FLX_PIT(flex_pit_start + i), 3576 I40E_FLEX_PREP_VAL(entry->pit_index + 50, 3577 1, 3578 entry->src_offset)); 3579 i++; 3580 } 3581 3582 /* In order to program the last entries in the table, we need to 3583 * determine the valid offset. If the list is empty, we'll just start 3584 * with 0. Otherwise, we'll start with the last item offset and add 1. 3585 * This ensures that all entries have valid sizes. If we don't do this 3586 * correctly, the hardware will disable flexible field parsing. 3587 */ 3588 if (!list_empty(flex_pit_list)) 3589 last_offset = list_prev_entry(entry, list)->src_offset + 1; 3590 3591 for (; i < 3; i++, last_offset++) { 3592 i40e_write_rx_ctl(&pf->hw, 3593 I40E_PRTQF_FLX_PIT(flex_pit_start + i), 3594 I40E_FLEX_PREP_VAL(I40E_FLEX_DEST_UNUSED, 3595 1, 3596 last_offset)); 3597 } 3598 } 3599 3600 /** 3601 * i40e_reprogram_flex_pit - Reprogram all FLX_PIT tables after input set change 3602 * @pf: pointer to the PF structure 3603 * 3604 * This function reprograms both the L3 and L4 FLX_PIT tables. See the 3605 * internal helper function for implementation details. 3606 **/ 3607 static void i40e_reprogram_flex_pit(struct i40e_pf *pf) 3608 { 3609 __i40e_reprogram_flex_pit(pf, &pf->l3_flex_pit_list, 3610 I40E_FLEX_PIT_IDX_START_L3); 3611 3612 __i40e_reprogram_flex_pit(pf, &pf->l4_flex_pit_list, 3613 I40E_FLEX_PIT_IDX_START_L4); 3614 3615 /* We also need to program the L3 and L4 GLQF ORT register */ 3616 i40e_write_rx_ctl(&pf->hw, 3617 I40E_GLQF_ORT(I40E_L3_GLQF_ORT_IDX), 3618 I40E_ORT_PREP_VAL(I40E_FLEX_PIT_IDX_START_L3, 3619 3, 1)); 3620 3621 i40e_write_rx_ctl(&pf->hw, 3622 I40E_GLQF_ORT(I40E_L4_GLQF_ORT_IDX), 3623 I40E_ORT_PREP_VAL(I40E_FLEX_PIT_IDX_START_L4, 3624 3, 1)); 3625 } 3626 3627 /** 3628 * i40e_flow_str - Converts a flow_type into a human readable string 3629 * @fsp: the flow specification 3630 * 3631 * Currently only flow types we support are included here, and the string 3632 * value attempts to match what ethtool would use to configure this flow type. 3633 **/ 3634 static const char *i40e_flow_str(struct ethtool_rx_flow_spec *fsp) 3635 { 3636 switch (fsp->flow_type & ~FLOW_EXT) { 3637 case TCP_V4_FLOW: 3638 return "tcp4"; 3639 case UDP_V4_FLOW: 3640 return "udp4"; 3641 case SCTP_V4_FLOW: 3642 return "sctp4"; 3643 case IP_USER_FLOW: 3644 return "ip4"; 3645 default: 3646 return "unknown"; 3647 } 3648 } 3649 3650 /** 3651 * i40e_pit_index_to_mask - Return the FLEX mask for a given PIT index 3652 * @pit_index: PIT index to convert 3653 * 3654 * Returns the mask for a given PIT index. Will return 0 if the pit_index is 3655 * of range. 3656 **/ 3657 static u64 i40e_pit_index_to_mask(int pit_index) 3658 { 3659 switch (pit_index) { 3660 case 0: 3661 return I40E_FLEX_50_MASK; 3662 case 1: 3663 return I40E_FLEX_51_MASK; 3664 case 2: 3665 return I40E_FLEX_52_MASK; 3666 case 3: 3667 return I40E_FLEX_53_MASK; 3668 case 4: 3669 return I40E_FLEX_54_MASK; 3670 case 5: 3671 return I40E_FLEX_55_MASK; 3672 case 6: 3673 return I40E_FLEX_56_MASK; 3674 case 7: 3675 return I40E_FLEX_57_MASK; 3676 default: 3677 return 0; 3678 } 3679 } 3680 3681 /** 3682 * i40e_print_input_set - Show changes between two input sets 3683 * @vsi: the vsi being configured 3684 * @old: the old input set 3685 * @new: the new input set 3686 * 3687 * Print the difference between old and new input sets by showing which series 3688 * of words are toggled on or off. Only displays the bits we actually support 3689 * changing. 3690 **/ 3691 static void i40e_print_input_set(struct i40e_vsi *vsi, u64 old, u64 new) 3692 { 3693 struct i40e_pf *pf = vsi->back; 3694 bool old_value, new_value; 3695 int i; 3696 3697 old_value = !!(old & I40E_L3_SRC_MASK); 3698 new_value = !!(new & I40E_L3_SRC_MASK); 3699 if (old_value != new_value) 3700 netif_info(pf, drv, vsi->netdev, "L3 source address: %s -> %s\n", 3701 old_value ? "ON" : "OFF", 3702 new_value ? "ON" : "OFF"); 3703 3704 old_value = !!(old & I40E_L3_DST_MASK); 3705 new_value = !!(new & I40E_L3_DST_MASK); 3706 if (old_value != new_value) 3707 netif_info(pf, drv, vsi->netdev, "L3 destination address: %s -> %s\n", 3708 old_value ? "ON" : "OFF", 3709 new_value ? "ON" : "OFF"); 3710 3711 old_value = !!(old & I40E_L4_SRC_MASK); 3712 new_value = !!(new & I40E_L4_SRC_MASK); 3713 if (old_value != new_value) 3714 netif_info(pf, drv, vsi->netdev, "L4 source port: %s -> %s\n", 3715 old_value ? "ON" : "OFF", 3716 new_value ? "ON" : "OFF"); 3717 3718 old_value = !!(old & I40E_L4_DST_MASK); 3719 new_value = !!(new & I40E_L4_DST_MASK); 3720 if (old_value != new_value) 3721 netif_info(pf, drv, vsi->netdev, "L4 destination port: %s -> %s\n", 3722 old_value ? "ON" : "OFF", 3723 new_value ? "ON" : "OFF"); 3724 3725 old_value = !!(old & I40E_VERIFY_TAG_MASK); 3726 new_value = !!(new & I40E_VERIFY_TAG_MASK); 3727 if (old_value != new_value) 3728 netif_info(pf, drv, vsi->netdev, "SCTP verification tag: %s -> %s\n", 3729 old_value ? "ON" : "OFF", 3730 new_value ? "ON" : "OFF"); 3731 3732 /* Show change of flexible filter entries */ 3733 for (i = 0; i < I40E_FLEX_INDEX_ENTRIES; i++) { 3734 u64 flex_mask = i40e_pit_index_to_mask(i); 3735 3736 old_value = !!(old & flex_mask); 3737 new_value = !!(new & flex_mask); 3738 if (old_value != new_value) 3739 netif_info(pf, drv, vsi->netdev, "FLEX index %d: %s -> %s\n", 3740 i, 3741 old_value ? "ON" : "OFF", 3742 new_value ? "ON" : "OFF"); 3743 } 3744 3745 netif_info(pf, drv, vsi->netdev, " Current input set: %0llx\n", 3746 old); 3747 netif_info(pf, drv, vsi->netdev, "Requested input set: %0llx\n", 3748 new); 3749 } 3750 3751 /** 3752 * i40e_check_fdir_input_set - Check that a given rx_flow_spec mask is valid 3753 * @vsi: pointer to the targeted VSI 3754 * @fsp: pointer to Rx flow specification 3755 * @userdef: userdefined data from flow specification 3756 * 3757 * Ensures that a given ethtool_rx_flow_spec has a valid mask. Some support 3758 * for partial matches exists with a few limitations. First, hardware only 3759 * supports masking by word boundary (2 bytes) and not per individual bit. 3760 * Second, hardware is limited to using one mask for a flow type and cannot 3761 * use a separate mask for each filter. 3762 * 3763 * To support these limitations, if we already have a configured filter for 3764 * the specified type, this function enforces that new filters of the type 3765 * match the configured input set. Otherwise, if we do not have a filter of 3766 * the specified type, we allow the input set to be updated to match the 3767 * desired filter. 3768 * 3769 * To help ensure that administrators understand why filters weren't displayed 3770 * as supported, we print a diagnostic message displaying how the input set 3771 * would change and warning to delete the preexisting filters if required. 3772 * 3773 * Returns 0 on successful input set match, and a negative return code on 3774 * failure. 3775 **/ 3776 static int i40e_check_fdir_input_set(struct i40e_vsi *vsi, 3777 struct ethtool_rx_flow_spec *fsp, 3778 struct i40e_rx_flow_userdef *userdef) 3779 { 3780 struct i40e_pf *pf = vsi->back; 3781 struct ethtool_tcpip4_spec *tcp_ip4_spec; 3782 struct ethtool_usrip4_spec *usr_ip4_spec; 3783 u64 current_mask, new_mask; 3784 bool new_flex_offset = false; 3785 bool flex_l3 = false; 3786 u16 *fdir_filter_count; 3787 u16 index, src_offset = 0; 3788 u8 pit_index = 0; 3789 int err; 3790 3791 switch (fsp->flow_type & ~FLOW_EXT) { 3792 case SCTP_V4_FLOW: 3793 index = I40E_FILTER_PCTYPE_NONF_IPV4_SCTP; 3794 fdir_filter_count = &pf->fd_sctp4_filter_cnt; 3795 break; 3796 case TCP_V4_FLOW: 3797 index = I40E_FILTER_PCTYPE_NONF_IPV4_TCP; 3798 fdir_filter_count = &pf->fd_tcp4_filter_cnt; 3799 break; 3800 case UDP_V4_FLOW: 3801 index = I40E_FILTER_PCTYPE_NONF_IPV4_UDP; 3802 fdir_filter_count = &pf->fd_udp4_filter_cnt; 3803 break; 3804 case IP_USER_FLOW: 3805 index = I40E_FILTER_PCTYPE_NONF_IPV4_OTHER; 3806 fdir_filter_count = &pf->fd_ip4_filter_cnt; 3807 flex_l3 = true; 3808 break; 3809 default: 3810 return -EOPNOTSUPP; 3811 } 3812 3813 /* Read the current input set from register memory. */ 3814 current_mask = i40e_read_fd_input_set(pf, index); 3815 new_mask = current_mask; 3816 3817 /* Determine, if any, the required changes to the input set in order 3818 * to support the provided mask. 3819 * 3820 * Hardware only supports masking at word (2 byte) granularity and does 3821 * not support full bitwise masking. This implementation simplifies 3822 * even further and only supports fully enabled or fully disabled 3823 * masks for each field, even though we could split the ip4src and 3824 * ip4dst fields. 3825 */ 3826 switch (fsp->flow_type & ~FLOW_EXT) { 3827 case SCTP_V4_FLOW: 3828 new_mask &= ~I40E_VERIFY_TAG_MASK; 3829 /* Fall through */ 3830 case TCP_V4_FLOW: 3831 case UDP_V4_FLOW: 3832 tcp_ip4_spec = &fsp->m_u.tcp_ip4_spec; 3833 3834 /* IPv4 source address */ 3835 if (tcp_ip4_spec->ip4src == htonl(0xFFFFFFFF)) 3836 new_mask |= I40E_L3_SRC_MASK; 3837 else if (!tcp_ip4_spec->ip4src) 3838 new_mask &= ~I40E_L3_SRC_MASK; 3839 else 3840 return -EOPNOTSUPP; 3841 3842 /* IPv4 destination address */ 3843 if (tcp_ip4_spec->ip4dst == htonl(0xFFFFFFFF)) 3844 new_mask |= I40E_L3_DST_MASK; 3845 else if (!tcp_ip4_spec->ip4dst) 3846 new_mask &= ~I40E_L3_DST_MASK; 3847 else 3848 return -EOPNOTSUPP; 3849 3850 /* L4 source port */ 3851 if (tcp_ip4_spec->psrc == htons(0xFFFF)) 3852 new_mask |= I40E_L4_SRC_MASK; 3853 else if (!tcp_ip4_spec->psrc) 3854 new_mask &= ~I40E_L4_SRC_MASK; 3855 else 3856 return -EOPNOTSUPP; 3857 3858 /* L4 destination port */ 3859 if (tcp_ip4_spec->pdst == htons(0xFFFF)) 3860 new_mask |= I40E_L4_DST_MASK; 3861 else if (!tcp_ip4_spec->pdst) 3862 new_mask &= ~I40E_L4_DST_MASK; 3863 else 3864 return -EOPNOTSUPP; 3865 3866 /* Filtering on Type of Service is not supported. */ 3867 if (tcp_ip4_spec->tos) 3868 return -EOPNOTSUPP; 3869 3870 break; 3871 case IP_USER_FLOW: 3872 usr_ip4_spec = &fsp->m_u.usr_ip4_spec; 3873 3874 /* IPv4 source address */ 3875 if (usr_ip4_spec->ip4src == htonl(0xFFFFFFFF)) 3876 new_mask |= I40E_L3_SRC_MASK; 3877 else if (!usr_ip4_spec->ip4src) 3878 new_mask &= ~I40E_L3_SRC_MASK; 3879 else 3880 return -EOPNOTSUPP; 3881 3882 /* IPv4 destination address */ 3883 if (usr_ip4_spec->ip4dst == htonl(0xFFFFFFFF)) 3884 new_mask |= I40E_L3_DST_MASK; 3885 else if (!usr_ip4_spec->ip4dst) 3886 new_mask &= ~I40E_L3_DST_MASK; 3887 else 3888 return -EOPNOTSUPP; 3889 3890 /* First 4 bytes of L4 header */ 3891 if (usr_ip4_spec->l4_4_bytes == htonl(0xFFFFFFFF)) 3892 new_mask |= I40E_L4_SRC_MASK | I40E_L4_DST_MASK; 3893 else if (!usr_ip4_spec->l4_4_bytes) 3894 new_mask &= ~(I40E_L4_SRC_MASK | I40E_L4_DST_MASK); 3895 else 3896 return -EOPNOTSUPP; 3897 3898 /* Filtering on Type of Service is not supported. */ 3899 if (usr_ip4_spec->tos) 3900 return -EOPNOTSUPP; 3901 3902 /* Filtering on IP version is not supported */ 3903 if (usr_ip4_spec->ip_ver) 3904 return -EINVAL; 3905 3906 /* Filtering on L4 protocol is not supported */ 3907 if (usr_ip4_spec->proto) 3908 return -EINVAL; 3909 3910 break; 3911 default: 3912 return -EOPNOTSUPP; 3913 } 3914 3915 /* First, clear all flexible filter entries */ 3916 new_mask &= ~I40E_FLEX_INPUT_MASK; 3917 3918 /* If we have a flexible filter, try to add this offset to the correct 3919 * flexible filter PIT list. Once finished, we can update the mask. 3920 * If the src_offset changed, we will get a new mask value which will 3921 * trigger an input set change. 3922 */ 3923 if (userdef->flex_filter) { 3924 struct i40e_flex_pit *l3_flex_pit = NULL, *flex_pit = NULL; 3925 3926 /* Flexible offset must be even, since the flexible payload 3927 * must be aligned on 2-byte boundary. 3928 */ 3929 if (userdef->flex_offset & 0x1) { 3930 dev_warn(&pf->pdev->dev, 3931 "Flexible data offset must be 2-byte aligned\n"); 3932 return -EINVAL; 3933 } 3934 3935 src_offset = userdef->flex_offset >> 1; 3936 3937 /* FLX_PIT source offset value is only so large */ 3938 if (src_offset > I40E_MAX_FLEX_SRC_OFFSET) { 3939 dev_warn(&pf->pdev->dev, 3940 "Flexible data must reside within first 64 bytes of the packet payload\n"); 3941 return -EINVAL; 3942 } 3943 3944 /* See if this offset has already been programmed. If we get 3945 * an ERR_PTR, then the filter is not safe to add. Otherwise, 3946 * if we get a NULL pointer, this means we will need to add 3947 * the offset. 3948 */ 3949 flex_pit = i40e_find_flex_offset(&pf->l4_flex_pit_list, 3950 src_offset); 3951 if (IS_ERR(flex_pit)) 3952 return PTR_ERR(flex_pit); 3953 3954 /* IP_USER_FLOW filters match both L4 (ICMP) and L3 (unknown) 3955 * packet types, and thus we need to program both L3 and L4 3956 * flexible values. These must have identical flexible index, 3957 * as otherwise we can't correctly program the input set. So 3958 * we'll find both an L3 and L4 index and make sure they are 3959 * the same. 3960 */ 3961 if (flex_l3) { 3962 l3_flex_pit = 3963 i40e_find_flex_offset(&pf->l3_flex_pit_list, 3964 src_offset); 3965 if (IS_ERR(l3_flex_pit)) 3966 return PTR_ERR(l3_flex_pit); 3967 3968 if (flex_pit) { 3969 /* If we already had a matching L4 entry, we 3970 * need to make sure that the L3 entry we 3971 * obtained uses the same index. 3972 */ 3973 if (l3_flex_pit) { 3974 if (l3_flex_pit->pit_index != 3975 flex_pit->pit_index) { 3976 return -EINVAL; 3977 } 3978 } else { 3979 new_flex_offset = true; 3980 } 3981 } else { 3982 flex_pit = l3_flex_pit; 3983 } 3984 } 3985 3986 /* If we didn't find an existing flex offset, we need to 3987 * program a new one. However, we don't immediately program it 3988 * here because we will wait to program until after we check 3989 * that it is safe to change the input set. 3990 */ 3991 if (!flex_pit) { 3992 new_flex_offset = true; 3993 pit_index = i40e_unused_pit_index(pf); 3994 } else { 3995 pit_index = flex_pit->pit_index; 3996 } 3997 3998 /* Update the mask with the new offset */ 3999 new_mask |= i40e_pit_index_to_mask(pit_index); 4000 } 4001 4002 /* If the mask and flexible filter offsets for this filter match the 4003 * currently programmed values we don't need any input set change, so 4004 * this filter is safe to install. 4005 */ 4006 if (new_mask == current_mask && !new_flex_offset) 4007 return 0; 4008 4009 netif_info(pf, drv, vsi->netdev, "Input set change requested for %s flows:\n", 4010 i40e_flow_str(fsp)); 4011 i40e_print_input_set(vsi, current_mask, new_mask); 4012 if (new_flex_offset) { 4013 netif_info(pf, drv, vsi->netdev, "FLEX index %d: Offset -> %d", 4014 pit_index, src_offset); 4015 } 4016 4017 /* Hardware input sets are global across multiple ports, so even the 4018 * main port cannot change them when in MFP mode as this would impact 4019 * any filters on the other ports. 4020 */ 4021 if (pf->flags & I40E_FLAG_MFP_ENABLED) { 4022 netif_err(pf, drv, vsi->netdev, "Cannot change Flow Director input sets while MFP is enabled\n"); 4023 return -EOPNOTSUPP; 4024 } 4025 4026 /* This filter requires us to update the input set. However, hardware 4027 * only supports one input set per flow type, and does not support 4028 * separate masks for each filter. This means that we can only support 4029 * a single mask for all filters of a specific type. 4030 * 4031 * If we have preexisting filters, they obviously depend on the 4032 * current programmed input set. Display a diagnostic message in this 4033 * case explaining why the filter could not be accepted. 4034 */ 4035 if (*fdir_filter_count) { 4036 netif_err(pf, drv, vsi->netdev, "Cannot change input set for %s flows until %d preexisting filters are removed\n", 4037 i40e_flow_str(fsp), 4038 *fdir_filter_count); 4039 return -EOPNOTSUPP; 4040 } 4041 4042 i40e_write_fd_input_set(pf, index, new_mask); 4043 4044 /* IP_USER_FLOW filters match both IPv4/Other and IPv4/Fragmented 4045 * frames. If we're programming the input set for IPv4/Other, we also 4046 * need to program the IPv4/Fragmented input set. Since we don't have 4047 * separate support, we'll always assume and enforce that the two flow 4048 * types must have matching input sets. 4049 */ 4050 if (index == I40E_FILTER_PCTYPE_NONF_IPV4_OTHER) 4051 i40e_write_fd_input_set(pf, I40E_FILTER_PCTYPE_FRAG_IPV4, 4052 new_mask); 4053 4054 /* Add the new offset and update table, if necessary */ 4055 if (new_flex_offset) { 4056 err = i40e_add_flex_offset(&pf->l4_flex_pit_list, src_offset, 4057 pit_index); 4058 if (err) 4059 return err; 4060 4061 if (flex_l3) { 4062 err = i40e_add_flex_offset(&pf->l3_flex_pit_list, 4063 src_offset, 4064 pit_index); 4065 if (err) 4066 return err; 4067 } 4068 4069 i40e_reprogram_flex_pit(pf); 4070 } 4071 4072 return 0; 4073 } 4074 4075 /** 4076 * i40e_match_fdir_filter - Return true of two filters match 4077 * @a: pointer to filter struct 4078 * @b: pointer to filter struct 4079 * 4080 * Returns true if the two filters match exactly the same criteria. I.e. they 4081 * match the same flow type and have the same parameters. We don't need to 4082 * check any input-set since all filters of the same flow type must use the 4083 * same input set. 4084 **/ 4085 static bool i40e_match_fdir_filter(struct i40e_fdir_filter *a, 4086 struct i40e_fdir_filter *b) 4087 { 4088 /* The filters do not much if any of these criteria differ. */ 4089 if (a->dst_ip != b->dst_ip || 4090 a->src_ip != b->src_ip || 4091 a->dst_port != b->dst_port || 4092 a->src_port != b->src_port || 4093 a->flow_type != b->flow_type || 4094 a->ip4_proto != b->ip4_proto) 4095 return false; 4096 4097 return true; 4098 } 4099 4100 /** 4101 * i40e_disallow_matching_filters - Check that new filters differ 4102 * @vsi: pointer to the targeted VSI 4103 * @input: new filter to check 4104 * 4105 * Due to hardware limitations, it is not possible for two filters that match 4106 * similar criteria to be programmed at the same time. This is true for a few 4107 * reasons: 4108 * 4109 * (a) all filters matching a particular flow type must use the same input 4110 * set, that is they must match the same criteria. 4111 * (b) different flow types will never match the same packet, as the flow type 4112 * is decided by hardware before checking which rules apply. 4113 * (c) hardware has no way to distinguish which order filters apply in. 4114 * 4115 * Due to this, we can't really support using the location data to order 4116 * filters in the hardware parsing. It is technically possible for the user to 4117 * request two filters matching the same criteria but which select different 4118 * queues. In this case, rather than keep both filters in the list, we reject 4119 * the 2nd filter when the user requests adding it. 4120 * 4121 * This avoids needing to track location for programming the filter to 4122 * hardware, and ensures that we avoid some strange scenarios involving 4123 * deleting filters which match the same criteria. 4124 **/ 4125 static int i40e_disallow_matching_filters(struct i40e_vsi *vsi, 4126 struct i40e_fdir_filter *input) 4127 { 4128 struct i40e_pf *pf = vsi->back; 4129 struct i40e_fdir_filter *rule; 4130 struct hlist_node *node2; 4131 4132 /* Loop through every filter, and check that it doesn't match */ 4133 hlist_for_each_entry_safe(rule, node2, 4134 &pf->fdir_filter_list, fdir_node) { 4135 /* Don't check the filters match if they share the same fd_id, 4136 * since the new filter is actually just updating the target 4137 * of the old filter. 4138 */ 4139 if (rule->fd_id == input->fd_id) 4140 continue; 4141 4142 /* If any filters match, then print a warning message to the 4143 * kernel message buffer and bail out. 4144 */ 4145 if (i40e_match_fdir_filter(rule, input)) { 4146 dev_warn(&pf->pdev->dev, 4147 "Existing user defined filter %d already matches this flow.\n", 4148 rule->fd_id); 4149 return -EINVAL; 4150 } 4151 } 4152 4153 return 0; 4154 } 4155 4156 /** 4157 * i40e_add_fdir_ethtool - Add/Remove Flow Director filters 4158 * @vsi: pointer to the targeted VSI 4159 * @cmd: command to get or set RX flow classification rules 4160 * 4161 * Add Flow Director filters for a specific flow spec based on their 4162 * protocol. Returns 0 if the filters were successfully added. 4163 **/ 4164 static int i40e_add_fdir_ethtool(struct i40e_vsi *vsi, 4165 struct ethtool_rxnfc *cmd) 4166 { 4167 struct i40e_rx_flow_userdef userdef; 4168 struct ethtool_rx_flow_spec *fsp; 4169 struct i40e_fdir_filter *input; 4170 u16 dest_vsi = 0, q_index = 0; 4171 struct i40e_pf *pf; 4172 int ret = -EINVAL; 4173 u8 dest_ctl; 4174 4175 if (!vsi) 4176 return -EINVAL; 4177 pf = vsi->back; 4178 4179 if (!(pf->flags & I40E_FLAG_FD_SB_ENABLED)) 4180 return -EOPNOTSUPP; 4181 4182 if (test_bit(__I40E_FD_SB_AUTO_DISABLED, pf->state)) 4183 return -ENOSPC; 4184 4185 if (test_bit(__I40E_RESET_RECOVERY_PENDING, pf->state) || 4186 test_bit(__I40E_RESET_INTR_RECEIVED, pf->state)) 4187 return -EBUSY; 4188 4189 if (test_bit(__I40E_FD_FLUSH_REQUESTED, pf->state)) 4190 return -EBUSY; 4191 4192 fsp = (struct ethtool_rx_flow_spec *)&cmd->fs; 4193 4194 /* Parse the user-defined field */ 4195 if (i40e_parse_rx_flow_user_data(fsp, &userdef)) 4196 return -EINVAL; 4197 4198 /* Extended MAC field is not supported */ 4199 if (fsp->flow_type & FLOW_MAC_EXT) 4200 return -EINVAL; 4201 4202 ret = i40e_check_fdir_input_set(vsi, fsp, &userdef); 4203 if (ret) 4204 return ret; 4205 4206 if (fsp->location >= (pf->hw.func_caps.fd_filters_best_effort + 4207 pf->hw.func_caps.fd_filters_guaranteed)) { 4208 return -EINVAL; 4209 } 4210 4211 /* ring_cookie is either the drop index, or is a mask of the queue 4212 * index and VF id we wish to target. 4213 */ 4214 if (fsp->ring_cookie == RX_CLS_FLOW_DISC) { 4215 dest_ctl = I40E_FILTER_PROGRAM_DESC_DEST_DROP_PACKET; 4216 } else { 4217 u32 ring = ethtool_get_flow_spec_ring(fsp->ring_cookie); 4218 u8 vf = ethtool_get_flow_spec_ring_vf(fsp->ring_cookie); 4219 4220 if (!vf) { 4221 if (ring >= vsi->num_queue_pairs) 4222 return -EINVAL; 4223 dest_vsi = vsi->id; 4224 } else { 4225 /* VFs are zero-indexed, so we subtract one here */ 4226 vf--; 4227 4228 if (vf >= pf->num_alloc_vfs) 4229 return -EINVAL; 4230 if (ring >= pf->vf[vf].num_queue_pairs) 4231 return -EINVAL; 4232 dest_vsi = pf->vf[vf].lan_vsi_id; 4233 } 4234 dest_ctl = I40E_FILTER_PROGRAM_DESC_DEST_DIRECT_PACKET_QINDEX; 4235 q_index = ring; 4236 } 4237 4238 input = kzalloc(sizeof(*input), GFP_KERNEL); 4239 4240 if (!input) 4241 return -ENOMEM; 4242 4243 input->fd_id = fsp->location; 4244 input->q_index = q_index; 4245 input->dest_vsi = dest_vsi; 4246 input->dest_ctl = dest_ctl; 4247 input->fd_status = I40E_FILTER_PROGRAM_DESC_FD_STATUS_FD_ID; 4248 input->cnt_index = I40E_FD_SB_STAT_IDX(pf->hw.pf_id); 4249 input->dst_ip = fsp->h_u.tcp_ip4_spec.ip4src; 4250 input->src_ip = fsp->h_u.tcp_ip4_spec.ip4dst; 4251 input->flow_type = fsp->flow_type & ~FLOW_EXT; 4252 input->ip4_proto = fsp->h_u.usr_ip4_spec.proto; 4253 4254 /* Reverse the src and dest notion, since the HW expects them to be from 4255 * Tx perspective where as the input from user is from Rx filter view. 4256 */ 4257 input->dst_port = fsp->h_u.tcp_ip4_spec.psrc; 4258 input->src_port = fsp->h_u.tcp_ip4_spec.pdst; 4259 input->dst_ip = fsp->h_u.tcp_ip4_spec.ip4src; 4260 input->src_ip = fsp->h_u.tcp_ip4_spec.ip4dst; 4261 4262 if (userdef.flex_filter) { 4263 input->flex_filter = true; 4264 input->flex_word = cpu_to_be16(userdef.flex_word); 4265 input->flex_offset = userdef.flex_offset; 4266 } 4267 4268 /* Avoid programming two filters with identical match criteria. */ 4269 ret = i40e_disallow_matching_filters(vsi, input); 4270 if (ret) 4271 goto free_filter_memory; 4272 4273 /* Add the input filter to the fdir_input_list, possibly replacing 4274 * a previous filter. Do not free the input structure after adding it 4275 * to the list as this would cause a use-after-free bug. 4276 */ 4277 i40e_update_ethtool_fdir_entry(vsi, input, fsp->location, NULL); 4278 ret = i40e_add_del_fdir(vsi, input, true); 4279 if (ret) 4280 goto remove_sw_rule; 4281 return 0; 4282 4283 remove_sw_rule: 4284 hlist_del(&input->fdir_node); 4285 pf->fdir_pf_active_filters--; 4286 free_filter_memory: 4287 kfree(input); 4288 return ret; 4289 } 4290 4291 /** 4292 * i40e_set_rxnfc - command to set RX flow classification rules 4293 * @netdev: network interface device structure 4294 * @cmd: ethtool rxnfc command 4295 * 4296 * Returns Success if the command is supported. 4297 **/ 4298 static int i40e_set_rxnfc(struct net_device *netdev, struct ethtool_rxnfc *cmd) 4299 { 4300 struct i40e_netdev_priv *np = netdev_priv(netdev); 4301 struct i40e_vsi *vsi = np->vsi; 4302 struct i40e_pf *pf = vsi->back; 4303 int ret = -EOPNOTSUPP; 4304 4305 switch (cmd->cmd) { 4306 case ETHTOOL_SRXFH: 4307 ret = i40e_set_rss_hash_opt(pf, cmd); 4308 break; 4309 case ETHTOOL_SRXCLSRLINS: 4310 ret = i40e_add_fdir_ethtool(vsi, cmd); 4311 break; 4312 case ETHTOOL_SRXCLSRLDEL: 4313 ret = i40e_del_fdir_entry(vsi, cmd); 4314 break; 4315 default: 4316 break; 4317 } 4318 4319 return ret; 4320 } 4321 4322 /** 4323 * i40e_max_channels - get Max number of combined channels supported 4324 * @vsi: vsi pointer 4325 **/ 4326 static unsigned int i40e_max_channels(struct i40e_vsi *vsi) 4327 { 4328 /* TODO: This code assumes DCB and FD is disabled for now. */ 4329 return vsi->alloc_queue_pairs; 4330 } 4331 4332 /** 4333 * i40e_get_channels - Get the current channels enabled and max supported etc. 4334 * @dev: network interface device structure 4335 * @ch: ethtool channels structure 4336 * 4337 * We don't support separate tx and rx queues as channels. The other count 4338 * represents how many queues are being used for control. max_combined counts 4339 * how many queue pairs we can support. They may not be mapped 1 to 1 with 4340 * q_vectors since we support a lot more queue pairs than q_vectors. 4341 **/ 4342 static void i40e_get_channels(struct net_device *dev, 4343 struct ethtool_channels *ch) 4344 { 4345 struct i40e_netdev_priv *np = netdev_priv(dev); 4346 struct i40e_vsi *vsi = np->vsi; 4347 struct i40e_pf *pf = vsi->back; 4348 4349 /* report maximum channels */ 4350 ch->max_combined = i40e_max_channels(vsi); 4351 4352 /* report info for other vector */ 4353 ch->other_count = (pf->flags & I40E_FLAG_FD_SB_ENABLED) ? 1 : 0; 4354 ch->max_other = ch->other_count; 4355 4356 /* Note: This code assumes DCB is disabled for now. */ 4357 ch->combined_count = vsi->num_queue_pairs; 4358 } 4359 4360 /** 4361 * i40e_set_channels - Set the new channels count. 4362 * @dev: network interface device structure 4363 * @ch: ethtool channels structure 4364 * 4365 * The new channels count may not be the same as requested by the user 4366 * since it gets rounded down to a power of 2 value. 4367 **/ 4368 static int i40e_set_channels(struct net_device *dev, 4369 struct ethtool_channels *ch) 4370 { 4371 const u8 drop = I40E_FILTER_PROGRAM_DESC_DEST_DROP_PACKET; 4372 struct i40e_netdev_priv *np = netdev_priv(dev); 4373 unsigned int count = ch->combined_count; 4374 struct i40e_vsi *vsi = np->vsi; 4375 struct i40e_pf *pf = vsi->back; 4376 struct i40e_fdir_filter *rule; 4377 struct hlist_node *node2; 4378 int new_count; 4379 int err = 0; 4380 4381 /* We do not support setting channels for any other VSI at present */ 4382 if (vsi->type != I40E_VSI_MAIN) 4383 return -EINVAL; 4384 4385 /* We do not support setting channels via ethtool when TCs are 4386 * configured through mqprio 4387 */ 4388 if (pf->flags & I40E_FLAG_TC_MQPRIO) 4389 return -EINVAL; 4390 4391 /* verify they are not requesting separate vectors */ 4392 if (!count || ch->rx_count || ch->tx_count) 4393 return -EINVAL; 4394 4395 /* verify other_count has not changed */ 4396 if (ch->other_count != ((pf->flags & I40E_FLAG_FD_SB_ENABLED) ? 1 : 0)) 4397 return -EINVAL; 4398 4399 /* verify the number of channels does not exceed hardware limits */ 4400 if (count > i40e_max_channels(vsi)) 4401 return -EINVAL; 4402 4403 /* verify that the number of channels does not invalidate any current 4404 * flow director rules 4405 */ 4406 hlist_for_each_entry_safe(rule, node2, 4407 &pf->fdir_filter_list, fdir_node) { 4408 if (rule->dest_ctl != drop && count <= rule->q_index) { 4409 dev_warn(&pf->pdev->dev, 4410 "Existing user defined filter %d assigns flow to queue %d\n", 4411 rule->fd_id, rule->q_index); 4412 err = -EINVAL; 4413 } 4414 } 4415 4416 if (err) { 4417 dev_err(&pf->pdev->dev, 4418 "Existing filter rules must be deleted to reduce combined channel count to %d\n", 4419 count); 4420 return err; 4421 } 4422 4423 /* update feature limits from largest to smallest supported values */ 4424 /* TODO: Flow director limit, DCB etc */ 4425 4426 /* use rss_reconfig to rebuild with new queue count and update traffic 4427 * class queue mapping 4428 */ 4429 new_count = i40e_reconfig_rss_queues(pf, count); 4430 if (new_count > 0) 4431 return 0; 4432 else 4433 return -EINVAL; 4434 } 4435 4436 /** 4437 * i40e_get_rxfh_key_size - get the RSS hash key size 4438 * @netdev: network interface device structure 4439 * 4440 * Returns the table size. 4441 **/ 4442 static u32 i40e_get_rxfh_key_size(struct net_device *netdev) 4443 { 4444 return I40E_HKEY_ARRAY_SIZE; 4445 } 4446 4447 /** 4448 * i40e_get_rxfh_indir_size - get the rx flow hash indirection table size 4449 * @netdev: network interface device structure 4450 * 4451 * Returns the table size. 4452 **/ 4453 static u32 i40e_get_rxfh_indir_size(struct net_device *netdev) 4454 { 4455 return I40E_HLUT_ARRAY_SIZE; 4456 } 4457 4458 /** 4459 * i40e_get_rxfh - get the rx flow hash indirection table 4460 * @netdev: network interface device structure 4461 * @indir: indirection table 4462 * @key: hash key 4463 * @hfunc: hash function 4464 * 4465 * Reads the indirection table directly from the hardware. Returns 0 on 4466 * success. 4467 **/ 4468 static int i40e_get_rxfh(struct net_device *netdev, u32 *indir, u8 *key, 4469 u8 *hfunc) 4470 { 4471 struct i40e_netdev_priv *np = netdev_priv(netdev); 4472 struct i40e_vsi *vsi = np->vsi; 4473 u8 *lut, *seed = NULL; 4474 int ret; 4475 u16 i; 4476 4477 if (hfunc) 4478 *hfunc = ETH_RSS_HASH_TOP; 4479 4480 if (!indir) 4481 return 0; 4482 4483 seed = key; 4484 lut = kzalloc(I40E_HLUT_ARRAY_SIZE, GFP_KERNEL); 4485 if (!lut) 4486 return -ENOMEM; 4487 ret = i40e_get_rss(vsi, seed, lut, I40E_HLUT_ARRAY_SIZE); 4488 if (ret) 4489 goto out; 4490 for (i = 0; i < I40E_HLUT_ARRAY_SIZE; i++) 4491 indir[i] = (u32)(lut[i]); 4492 4493 out: 4494 kfree(lut); 4495 4496 return ret; 4497 } 4498 4499 /** 4500 * i40e_set_rxfh - set the rx flow hash indirection table 4501 * @netdev: network interface device structure 4502 * @indir: indirection table 4503 * @key: hash key 4504 * @hfunc: hash function to use 4505 * 4506 * Returns -EINVAL if the table specifies an invalid queue id, otherwise 4507 * returns 0 after programming the table. 4508 **/ 4509 static int i40e_set_rxfh(struct net_device *netdev, const u32 *indir, 4510 const u8 *key, const u8 hfunc) 4511 { 4512 struct i40e_netdev_priv *np = netdev_priv(netdev); 4513 struct i40e_vsi *vsi = np->vsi; 4514 struct i40e_pf *pf = vsi->back; 4515 u8 *seed = NULL; 4516 u16 i; 4517 4518 if (hfunc != ETH_RSS_HASH_NO_CHANGE && hfunc != ETH_RSS_HASH_TOP) 4519 return -EOPNOTSUPP; 4520 4521 if (key) { 4522 if (!vsi->rss_hkey_user) { 4523 vsi->rss_hkey_user = kzalloc(I40E_HKEY_ARRAY_SIZE, 4524 GFP_KERNEL); 4525 if (!vsi->rss_hkey_user) 4526 return -ENOMEM; 4527 } 4528 memcpy(vsi->rss_hkey_user, key, I40E_HKEY_ARRAY_SIZE); 4529 seed = vsi->rss_hkey_user; 4530 } 4531 if (!vsi->rss_lut_user) { 4532 vsi->rss_lut_user = kzalloc(I40E_HLUT_ARRAY_SIZE, GFP_KERNEL); 4533 if (!vsi->rss_lut_user) 4534 return -ENOMEM; 4535 } 4536 4537 /* Each 32 bits pointed by 'indir' is stored with a lut entry */ 4538 if (indir) 4539 for (i = 0; i < I40E_HLUT_ARRAY_SIZE; i++) 4540 vsi->rss_lut_user[i] = (u8)(indir[i]); 4541 else 4542 i40e_fill_rss_lut(pf, vsi->rss_lut_user, I40E_HLUT_ARRAY_SIZE, 4543 vsi->rss_size); 4544 4545 return i40e_config_rss(vsi, seed, vsi->rss_lut_user, 4546 I40E_HLUT_ARRAY_SIZE); 4547 } 4548 4549 /** 4550 * i40e_get_priv_flags - report device private flags 4551 * @dev: network interface device structure 4552 * 4553 * The get string set count and the string set should be matched for each 4554 * flag returned. Add new strings for each flag to the i40e_gstrings_priv_flags 4555 * array. 4556 * 4557 * Returns a u32 bitmap of flags. 4558 **/ 4559 static u32 i40e_get_priv_flags(struct net_device *dev) 4560 { 4561 struct i40e_netdev_priv *np = netdev_priv(dev); 4562 struct i40e_vsi *vsi = np->vsi; 4563 struct i40e_pf *pf = vsi->back; 4564 u32 i, j, ret_flags = 0; 4565 4566 for (i = 0; i < I40E_PRIV_FLAGS_STR_LEN; i++) { 4567 const struct i40e_priv_flags *priv_flags; 4568 4569 priv_flags = &i40e_gstrings_priv_flags[i]; 4570 4571 if (priv_flags->flag & pf->flags) 4572 ret_flags |= BIT(i); 4573 } 4574 4575 if (pf->hw.pf_id != 0) 4576 return ret_flags; 4577 4578 for (j = 0; j < I40E_GL_PRIV_FLAGS_STR_LEN; j++) { 4579 const struct i40e_priv_flags *priv_flags; 4580 4581 priv_flags = &i40e_gl_gstrings_priv_flags[j]; 4582 4583 if (priv_flags->flag & pf->flags) 4584 ret_flags |= BIT(i + j); 4585 } 4586 4587 return ret_flags; 4588 } 4589 4590 /** 4591 * i40e_set_priv_flags - set private flags 4592 * @dev: network interface device structure 4593 * @flags: bit flags to be set 4594 **/ 4595 static int i40e_set_priv_flags(struct net_device *dev, u32 flags) 4596 { 4597 struct i40e_netdev_priv *np = netdev_priv(dev); 4598 struct i40e_vsi *vsi = np->vsi; 4599 struct i40e_pf *pf = vsi->back; 4600 u64 orig_flags, new_flags, changed_flags; 4601 u32 i, j; 4602 4603 orig_flags = READ_ONCE(pf->flags); 4604 new_flags = orig_flags; 4605 4606 for (i = 0; i < I40E_PRIV_FLAGS_STR_LEN; i++) { 4607 const struct i40e_priv_flags *priv_flags; 4608 4609 priv_flags = &i40e_gstrings_priv_flags[i]; 4610 4611 if (flags & BIT(i)) 4612 new_flags |= priv_flags->flag; 4613 else 4614 new_flags &= ~(priv_flags->flag); 4615 4616 /* If this is a read-only flag, it can't be changed */ 4617 if (priv_flags->read_only && 4618 ((orig_flags ^ new_flags) & ~BIT(i))) 4619 return -EOPNOTSUPP; 4620 } 4621 4622 if (pf->hw.pf_id != 0) 4623 goto flags_complete; 4624 4625 for (j = 0; j < I40E_GL_PRIV_FLAGS_STR_LEN; j++) { 4626 const struct i40e_priv_flags *priv_flags; 4627 4628 priv_flags = &i40e_gl_gstrings_priv_flags[j]; 4629 4630 if (flags & BIT(i + j)) 4631 new_flags |= priv_flags->flag; 4632 else 4633 new_flags &= ~(priv_flags->flag); 4634 4635 /* If this is a read-only flag, it can't be changed */ 4636 if (priv_flags->read_only && 4637 ((orig_flags ^ new_flags) & ~BIT(i))) 4638 return -EOPNOTSUPP; 4639 } 4640 4641 flags_complete: 4642 changed_flags = orig_flags ^ new_flags; 4643 4644 /* Before we finalize any flag changes, we need to perform some 4645 * checks to ensure that the changes are supported and safe. 4646 */ 4647 4648 /* ATR eviction is not supported on all devices */ 4649 if ((new_flags & I40E_FLAG_HW_ATR_EVICT_ENABLED) && 4650 !(pf->hw_features & I40E_HW_ATR_EVICT_CAPABLE)) 4651 return -EOPNOTSUPP; 4652 4653 /* If the driver detected FW LLDP was disabled on init, this flag could 4654 * be set, however we do not support _changing_ the flag if NPAR is 4655 * enabled or FW API version < 1.7. There are situations where older 4656 * FW versions/NPAR enabled PFs could disable LLDP, however we _must_ 4657 * not allow the user to enable/disable LLDP with this flag on 4658 * unsupported FW versions. 4659 */ 4660 if (changed_flags & I40E_FLAG_DISABLE_FW_LLDP) { 4661 if (!(pf->hw_features & I40E_HW_STOPPABLE_FW_LLDP)) { 4662 dev_warn(&pf->pdev->dev, 4663 "Device does not support changing FW LLDP\n"); 4664 return -EOPNOTSUPP; 4665 } 4666 } 4667 4668 /* Now that we've checked to ensure that the new flags are valid, load 4669 * them into place. Since we only modify flags either (a) during 4670 * initialization or (b) while holding the RTNL lock, we don't need 4671 * anything fancy here. 4672 */ 4673 pf->flags = new_flags; 4674 4675 /* Process any additional changes needed as a result of flag changes. 4676 * The changed_flags value reflects the list of bits that were 4677 * changed in the code above. 4678 */ 4679 4680 /* Flush current ATR settings if ATR was disabled */ 4681 if ((changed_flags & I40E_FLAG_FD_ATR_ENABLED) && 4682 !(pf->flags & I40E_FLAG_FD_ATR_ENABLED)) { 4683 set_bit(__I40E_FD_ATR_AUTO_DISABLED, pf->state); 4684 set_bit(__I40E_FD_FLUSH_REQUESTED, pf->state); 4685 } 4686 4687 if (changed_flags & I40E_FLAG_TRUE_PROMISC_SUPPORT) { 4688 u16 sw_flags = 0, valid_flags = 0; 4689 int ret; 4690 4691 if (!(pf->flags & I40E_FLAG_TRUE_PROMISC_SUPPORT)) 4692 sw_flags = I40E_AQ_SET_SWITCH_CFG_PROMISC; 4693 valid_flags = I40E_AQ_SET_SWITCH_CFG_PROMISC; 4694 ret = i40e_aq_set_switch_config(&pf->hw, sw_flags, valid_flags, 4695 0, NULL); 4696 if (ret && pf->hw.aq.asq_last_status != I40E_AQ_RC_ESRCH) { 4697 dev_info(&pf->pdev->dev, 4698 "couldn't set switch config bits, err %s aq_err %s\n", 4699 i40e_stat_str(&pf->hw, ret), 4700 i40e_aq_str(&pf->hw, 4701 pf->hw.aq.asq_last_status)); 4702 /* not a fatal problem, just keep going */ 4703 } 4704 } 4705 4706 if ((changed_flags & pf->flags & 4707 I40E_FLAG_LINK_DOWN_ON_CLOSE_ENABLED) && 4708 (pf->flags & I40E_FLAG_MFP_ENABLED)) 4709 dev_warn(&pf->pdev->dev, 4710 "Turning on link-down-on-close flag may affect other partitions\n"); 4711 4712 if (changed_flags & I40E_FLAG_DISABLE_FW_LLDP) { 4713 if (pf->flags & I40E_FLAG_DISABLE_FW_LLDP) { 4714 struct i40e_dcbx_config *dcbcfg; 4715 4716 i40e_aq_stop_lldp(&pf->hw, true, NULL); 4717 i40e_aq_set_dcb_parameters(&pf->hw, true, NULL); 4718 /* reset local_dcbx_config to default */ 4719 dcbcfg = &pf->hw.local_dcbx_config; 4720 dcbcfg->etscfg.willing = 1; 4721 dcbcfg->etscfg.maxtcs = 0; 4722 dcbcfg->etscfg.tcbwtable[0] = 100; 4723 for (i = 1; i < I40E_MAX_TRAFFIC_CLASS; i++) 4724 dcbcfg->etscfg.tcbwtable[i] = 0; 4725 for (i = 0; i < I40E_MAX_USER_PRIORITY; i++) 4726 dcbcfg->etscfg.prioritytable[i] = 0; 4727 dcbcfg->etscfg.tsatable[0] = I40E_IEEE_TSA_ETS; 4728 dcbcfg->pfc.willing = 1; 4729 dcbcfg->pfc.pfccap = I40E_MAX_TRAFFIC_CLASS; 4730 } else { 4731 i40e_aq_start_lldp(&pf->hw, NULL); 4732 } 4733 } 4734 4735 /* Issue reset to cause things to take effect, as additional bits 4736 * are added we will need to create a mask of bits requiring reset 4737 */ 4738 if (changed_flags & (I40E_FLAG_VEB_STATS_ENABLED | 4739 I40E_FLAG_LEGACY_RX | 4740 I40E_FLAG_SOURCE_PRUNING_DISABLED | 4741 I40E_FLAG_DISABLE_FW_LLDP)) 4742 i40e_do_reset(pf, BIT(__I40E_PF_RESET_REQUESTED), true); 4743 4744 return 0; 4745 } 4746 4747 /** 4748 * i40e_get_module_info - get (Q)SFP+ module type info 4749 * @netdev: network interface device structure 4750 * @modinfo: module EEPROM size and layout information structure 4751 **/ 4752 static int i40e_get_module_info(struct net_device *netdev, 4753 struct ethtool_modinfo *modinfo) 4754 { 4755 struct i40e_netdev_priv *np = netdev_priv(netdev); 4756 struct i40e_vsi *vsi = np->vsi; 4757 struct i40e_pf *pf = vsi->back; 4758 struct i40e_hw *hw = &pf->hw; 4759 u32 sff8472_comp = 0; 4760 u32 sff8472_swap = 0; 4761 u32 sff8636_rev = 0; 4762 i40e_status status; 4763 u32 type = 0; 4764 4765 /* Check if firmware supports reading module EEPROM. */ 4766 if (!(hw->flags & I40E_HW_FLAG_AQ_PHY_ACCESS_CAPABLE)) { 4767 netdev_err(vsi->netdev, "Module EEPROM memory read not supported. Please update the NVM image.\n"); 4768 return -EINVAL; 4769 } 4770 4771 status = i40e_update_link_info(hw); 4772 if (status) 4773 return -EIO; 4774 4775 if (hw->phy.link_info.phy_type == I40E_PHY_TYPE_EMPTY) { 4776 netdev_err(vsi->netdev, "Cannot read module EEPROM memory. No module connected.\n"); 4777 return -EINVAL; 4778 } 4779 4780 type = hw->phy.link_info.module_type[0]; 4781 4782 switch (type) { 4783 case I40E_MODULE_TYPE_SFP: 4784 status = i40e_aq_get_phy_register(hw, 4785 I40E_AQ_PHY_REG_ACCESS_EXTERNAL_MODULE, 4786 I40E_I2C_EEPROM_DEV_ADDR, 4787 I40E_MODULE_SFF_8472_COMP, 4788 &sff8472_comp, NULL); 4789 if (status) 4790 return -EIO; 4791 4792 status = i40e_aq_get_phy_register(hw, 4793 I40E_AQ_PHY_REG_ACCESS_EXTERNAL_MODULE, 4794 I40E_I2C_EEPROM_DEV_ADDR, 4795 I40E_MODULE_SFF_8472_SWAP, 4796 &sff8472_swap, NULL); 4797 if (status) 4798 return -EIO; 4799 4800 /* Check if the module requires address swap to access 4801 * the other EEPROM memory page. 4802 */ 4803 if (sff8472_swap & I40E_MODULE_SFF_ADDR_MODE) { 4804 netdev_warn(vsi->netdev, "Module address swap to access page 0xA2 is not supported.\n"); 4805 modinfo->type = ETH_MODULE_SFF_8079; 4806 modinfo->eeprom_len = ETH_MODULE_SFF_8079_LEN; 4807 } else if (sff8472_comp == 0x00) { 4808 /* Module is not SFF-8472 compliant */ 4809 modinfo->type = ETH_MODULE_SFF_8079; 4810 modinfo->eeprom_len = ETH_MODULE_SFF_8079_LEN; 4811 } else { 4812 modinfo->type = ETH_MODULE_SFF_8472; 4813 modinfo->eeprom_len = ETH_MODULE_SFF_8472_LEN; 4814 } 4815 break; 4816 case I40E_MODULE_TYPE_QSFP_PLUS: 4817 /* Read from memory page 0. */ 4818 status = i40e_aq_get_phy_register(hw, 4819 I40E_AQ_PHY_REG_ACCESS_EXTERNAL_MODULE, 4820 0, 4821 I40E_MODULE_REVISION_ADDR, 4822 &sff8636_rev, NULL); 4823 if (status) 4824 return -EIO; 4825 /* Determine revision compliance byte */ 4826 if (sff8636_rev > 0x02) { 4827 /* Module is SFF-8636 compliant */ 4828 modinfo->type = ETH_MODULE_SFF_8636; 4829 modinfo->eeprom_len = I40E_MODULE_QSFP_MAX_LEN; 4830 } else { 4831 modinfo->type = ETH_MODULE_SFF_8436; 4832 modinfo->eeprom_len = I40E_MODULE_QSFP_MAX_LEN; 4833 } 4834 break; 4835 case I40E_MODULE_TYPE_QSFP28: 4836 modinfo->type = ETH_MODULE_SFF_8636; 4837 modinfo->eeprom_len = I40E_MODULE_QSFP_MAX_LEN; 4838 break; 4839 default: 4840 netdev_err(vsi->netdev, "Module type unrecognized\n"); 4841 return -EINVAL; 4842 } 4843 return 0; 4844 } 4845 4846 /** 4847 * i40e_get_module_eeprom - fills buffer with (Q)SFP+ module memory contents 4848 * @netdev: network interface device structure 4849 * @ee: EEPROM dump request structure 4850 * @data: buffer to be filled with EEPROM contents 4851 **/ 4852 static int i40e_get_module_eeprom(struct net_device *netdev, 4853 struct ethtool_eeprom *ee, 4854 u8 *data) 4855 { 4856 struct i40e_netdev_priv *np = netdev_priv(netdev); 4857 struct i40e_vsi *vsi = np->vsi; 4858 struct i40e_pf *pf = vsi->back; 4859 struct i40e_hw *hw = &pf->hw; 4860 bool is_sfp = false; 4861 i40e_status status; 4862 u32 value = 0; 4863 int i; 4864 4865 if (!ee || !ee->len || !data) 4866 return -EINVAL; 4867 4868 if (hw->phy.link_info.module_type[0] == I40E_MODULE_TYPE_SFP) 4869 is_sfp = true; 4870 4871 for (i = 0; i < ee->len; i++) { 4872 u32 offset = i + ee->offset; 4873 u32 addr = is_sfp ? I40E_I2C_EEPROM_DEV_ADDR : 0; 4874 4875 /* Check if we need to access the other memory page */ 4876 if (is_sfp) { 4877 if (offset >= ETH_MODULE_SFF_8079_LEN) { 4878 offset -= ETH_MODULE_SFF_8079_LEN; 4879 addr = I40E_I2C_EEPROM_DEV_ADDR2; 4880 } 4881 } else { 4882 while (offset >= ETH_MODULE_SFF_8436_LEN) { 4883 /* Compute memory page number and offset. */ 4884 offset -= ETH_MODULE_SFF_8436_LEN / 2; 4885 addr++; 4886 } 4887 } 4888 4889 status = i40e_aq_get_phy_register(hw, 4890 I40E_AQ_PHY_REG_ACCESS_EXTERNAL_MODULE, 4891 addr, offset, &value, NULL); 4892 if (status) 4893 return -EIO; 4894 data[i] = value; 4895 } 4896 return 0; 4897 } 4898 4899 static const struct ethtool_ops i40e_ethtool_ops = { 4900 .get_drvinfo = i40e_get_drvinfo, 4901 .get_regs_len = i40e_get_regs_len, 4902 .get_regs = i40e_get_regs, 4903 .nway_reset = i40e_nway_reset, 4904 .get_link = ethtool_op_get_link, 4905 .get_wol = i40e_get_wol, 4906 .set_wol = i40e_set_wol, 4907 .set_eeprom = i40e_set_eeprom, 4908 .get_eeprom_len = i40e_get_eeprom_len, 4909 .get_eeprom = i40e_get_eeprom, 4910 .get_ringparam = i40e_get_ringparam, 4911 .set_ringparam = i40e_set_ringparam, 4912 .get_pauseparam = i40e_get_pauseparam, 4913 .set_pauseparam = i40e_set_pauseparam, 4914 .get_msglevel = i40e_get_msglevel, 4915 .set_msglevel = i40e_set_msglevel, 4916 .get_rxnfc = i40e_get_rxnfc, 4917 .set_rxnfc = i40e_set_rxnfc, 4918 .self_test = i40e_diag_test, 4919 .get_strings = i40e_get_strings, 4920 .set_phys_id = i40e_set_phys_id, 4921 .get_sset_count = i40e_get_sset_count, 4922 .get_ethtool_stats = i40e_get_ethtool_stats, 4923 .get_coalesce = i40e_get_coalesce, 4924 .set_coalesce = i40e_set_coalesce, 4925 .get_rxfh_key_size = i40e_get_rxfh_key_size, 4926 .get_rxfh_indir_size = i40e_get_rxfh_indir_size, 4927 .get_rxfh = i40e_get_rxfh, 4928 .set_rxfh = i40e_set_rxfh, 4929 .get_channels = i40e_get_channels, 4930 .set_channels = i40e_set_channels, 4931 .get_module_info = i40e_get_module_info, 4932 .get_module_eeprom = i40e_get_module_eeprom, 4933 .get_ts_info = i40e_get_ts_info, 4934 .get_priv_flags = i40e_get_priv_flags, 4935 .set_priv_flags = i40e_set_priv_flags, 4936 .get_per_queue_coalesce = i40e_get_per_queue_coalesce, 4937 .set_per_queue_coalesce = i40e_set_per_queue_coalesce, 4938 .get_link_ksettings = i40e_get_link_ksettings, 4939 .set_link_ksettings = i40e_set_link_ksettings, 4940 }; 4941 4942 void i40e_set_ethtool_ops(struct net_device *netdev) 4943 { 4944 netdev->ethtool_ops = &i40e_ethtool_ops; 4945 } 4946