1// SPDX-License-Identifier: GPL-2.0 2/* Copyright(c) 2013 - 2018 Intel Corporation. */ 3 4/* ethtool support for i40e */ 5 6#include "i40e_devids.h" 7#include "i40e_diag.h" 8#include "i40e_txrx_common.h" 9#include "i40e_virtchnl_pf.h" 10 11/* ethtool statistics helpers */ 12 13/** 14 * struct i40e_stats - definition for an ethtool statistic 15 * @stat_string: statistic name to display in ethtool -S output 16 * @sizeof_stat: the sizeof() the stat, must be no greater than sizeof(u64) 17 * @stat_offset: offsetof() the stat from a base pointer 18 * 19 * This structure defines a statistic to be added to the ethtool stats buffer. 20 * It defines a statistic as offset from a common base pointer. Stats should 21 * be defined in constant arrays using the I40E_STAT macro, with every element 22 * of the array using the same _type for calculating the sizeof_stat and 23 * stat_offset. 24 * 25 * The @sizeof_stat is expected to be sizeof(u8), sizeof(u16), sizeof(u32) or 26 * sizeof(u64). Other sizes are not expected and will produce a WARN_ONCE from 27 * the i40e_add_ethtool_stat() helper function. 28 * 29 * The @stat_string is interpreted as a format string, allowing formatted 30 * values to be inserted while looping over multiple structures for a given 31 * statistics array. Thus, every statistic string in an array should have the 32 * same type and number of format specifiers, to be formatted by variadic 33 * arguments to the i40e_add_stat_string() helper function. 34 **/ 35struct i40e_stats { 36 char stat_string[ETH_GSTRING_LEN]; 37 int sizeof_stat; 38 int stat_offset; 39}; 40 41/* Helper macro to define an i40e_stat structure with proper size and type. 42 * Use this when defining constant statistics arrays. Note that @_type expects 43 * only a type name and is used multiple times. 44 */ 45#define I40E_STAT(_type, _name, _stat) { \ 46 .stat_string = _name, \ 47 .sizeof_stat = sizeof_field(_type, _stat), \ 48 .stat_offset = offsetof(_type, _stat) \ 49} 50 51/* Helper macro for defining some statistics directly copied from the netdev 52 * stats structure. 53 */ 54#define I40E_NETDEV_STAT(_net_stat) \ 55 I40E_STAT(struct rtnl_link_stats64, #_net_stat, _net_stat) 56 57/* Helper macro for defining some statistics related to queues */ 58#define I40E_QUEUE_STAT(_name, _stat) \ 59 I40E_STAT(struct i40e_ring, _name, _stat) 60 61/* Stats associated with a Tx or Rx ring */ 62static const struct i40e_stats i40e_gstrings_queue_stats[] = { 63 I40E_QUEUE_STAT("%s-%u.packets", stats.packets), 64 I40E_QUEUE_STAT("%s-%u.bytes", stats.bytes), 65}; 66 67/** 68 * i40e_add_one_ethtool_stat - copy the stat into the supplied buffer 69 * @data: location to store the stat value 70 * @pointer: basis for where to copy from 71 * @stat: the stat definition 72 * 73 * Copies the stat data defined by the pointer and stat structure pair into 74 * the memory supplied as data. Used to implement i40e_add_ethtool_stats and 75 * i40e_add_queue_stats. If the pointer is null, data will be zero'd. 76 */ 77static void 78i40e_add_one_ethtool_stat(u64 *data, void *pointer, 79 const struct i40e_stats *stat) 80{ 81 char *p; 82 83 if (!pointer) { 84 /* ensure that the ethtool data buffer is zero'd for any stats 85 * which don't have a valid pointer. 86 */ 87 *data = 0; 88 return; 89 } 90 91 p = (char *)pointer + stat->stat_offset; 92 switch (stat->sizeof_stat) { 93 case sizeof(u64): 94 *data = *((u64 *)p); 95 break; 96 case sizeof(u32): 97 *data = *((u32 *)p); 98 break; 99 case sizeof(u16): 100 *data = *((u16 *)p); 101 break; 102 case sizeof(u8): 103 *data = *((u8 *)p); 104 break; 105 default: 106 WARN_ONCE(1, "unexpected stat size for %s", 107 stat->stat_string); 108 *data = 0; 109 } 110} 111 112/** 113 * __i40e_add_ethtool_stats - copy stats into the ethtool supplied buffer 114 * @data: ethtool stats buffer 115 * @pointer: location to copy stats from 116 * @stats: array of stats to copy 117 * @size: the size of the stats definition 118 * 119 * Copy the stats defined by the stats array using the pointer as a base into 120 * the data buffer supplied by ethtool. Updates the data pointer to point to 121 * the next empty location for successive calls to __i40e_add_ethtool_stats. 122 * If pointer is null, set the data values to zero and update the pointer to 123 * skip these stats. 124 **/ 125static void 126__i40e_add_ethtool_stats(u64 **data, void *pointer, 127 const struct i40e_stats stats[], 128 const unsigned int size) 129{ 130 unsigned int i; 131 132 for (i = 0; i < size; i++) 133 i40e_add_one_ethtool_stat((*data)++, pointer, &stats[i]); 134} 135 136/** 137 * i40e_add_ethtool_stats - copy stats into ethtool supplied buffer 138 * @data: ethtool stats buffer 139 * @pointer: location where stats are stored 140 * @stats: static const array of stat definitions 141 * 142 * Macro to ease the use of __i40e_add_ethtool_stats by taking a static 143 * constant stats array and passing the ARRAY_SIZE(). This avoids typos by 144 * ensuring that we pass the size associated with the given stats array. 145 * 146 * The parameter @stats is evaluated twice, so parameters with side effects 147 * should be avoided. 148 **/ 149#define i40e_add_ethtool_stats(data, pointer, stats) \ 150 __i40e_add_ethtool_stats(data, pointer, stats, ARRAY_SIZE(stats)) 151 152/** 153 * i40e_add_queue_stats - copy queue statistics into supplied buffer 154 * @data: ethtool stats buffer 155 * @ring: the ring to copy 156 * 157 * Queue statistics must be copied while protected by 158 * u64_stats_fetch_begin, so we can't directly use i40e_add_ethtool_stats. 159 * Assumes that queue stats are defined in i40e_gstrings_queue_stats. If the 160 * ring pointer is null, zero out the queue stat values and update the data 161 * pointer. Otherwise safely copy the stats from the ring into the supplied 162 * buffer and update the data pointer when finished. 163 * 164 * This function expects to be called while under rcu_read_lock(). 165 **/ 166static void 167i40e_add_queue_stats(u64 **data, struct i40e_ring *ring) 168{ 169 const unsigned int size = ARRAY_SIZE(i40e_gstrings_queue_stats); 170 const struct i40e_stats *stats = i40e_gstrings_queue_stats; 171 unsigned int start; 172 unsigned int i; 173 174 /* To avoid invalid statistics values, ensure that we keep retrying 175 * the copy until we get a consistent value according to 176 * u64_stats_fetch_retry. But first, make sure our ring is 177 * non-null before attempting to access its syncp. 178 */ 179 do { 180 start = !ring ? 0 : u64_stats_fetch_begin(&ring->syncp); 181 for (i = 0; i < size; i++) { 182 i40e_add_one_ethtool_stat(&(*data)[i], ring, 183 &stats[i]); 184 } 185 } while (ring && u64_stats_fetch_retry(&ring->syncp, start)); 186 187 /* Once we successfully copy the stats in, update the data pointer */ 188 *data += size; 189} 190 191/** 192 * __i40e_add_stat_strings - copy stat strings into ethtool buffer 193 * @p: ethtool supplied buffer 194 * @stats: stat definitions array 195 * @size: size of the stats array 196 * 197 * Format and copy the strings described by stats into the buffer pointed at 198 * by p. 199 **/ 200static void __i40e_add_stat_strings(u8 **p, const struct i40e_stats stats[], 201 const unsigned int size, ...) 202{ 203 unsigned int i; 204 205 for (i = 0; i < size; i++) { 206 va_list args; 207 208 va_start(args, size); 209 vsnprintf(*p, ETH_GSTRING_LEN, stats[i].stat_string, args); 210 *p += ETH_GSTRING_LEN; 211 va_end(args); 212 } 213} 214 215/** 216 * i40e_add_stat_strings - copy stat strings into ethtool buffer 217 * @p: ethtool supplied buffer 218 * @stats: stat definitions array 219 * 220 * Format and copy the strings described by the const static stats value into 221 * the buffer pointed at by p. 222 * 223 * The parameter @stats is evaluated twice, so parameters with side effects 224 * should be avoided. Additionally, stats must be an array such that 225 * ARRAY_SIZE can be called on it. 226 **/ 227#define i40e_add_stat_strings(p, stats, ...) \ 228 __i40e_add_stat_strings(p, stats, ARRAY_SIZE(stats), ## __VA_ARGS__) 229 230#define I40E_PF_STAT(_name, _stat) \ 231 I40E_STAT(struct i40e_pf, _name, _stat) 232#define I40E_VSI_STAT(_name, _stat) \ 233 I40E_STAT(struct i40e_vsi, _name, _stat) 234#define I40E_VEB_STAT(_name, _stat) \ 235 I40E_STAT(struct i40e_veb, _name, _stat) 236#define I40E_VEB_TC_STAT(_name, _stat) \ 237 I40E_STAT(struct i40e_cp_veb_tc_stats, _name, _stat) 238#define I40E_PFC_STAT(_name, _stat) \ 239 I40E_STAT(struct i40e_pfc_stats, _name, _stat) 240 241static const struct i40e_stats i40e_gstrings_net_stats[] = { 242 I40E_NETDEV_STAT(rx_packets), 243 I40E_NETDEV_STAT(tx_packets), 244 I40E_NETDEV_STAT(rx_bytes), 245 I40E_NETDEV_STAT(tx_bytes), 246 I40E_NETDEV_STAT(rx_errors), 247 I40E_NETDEV_STAT(tx_errors), 248 I40E_NETDEV_STAT(rx_dropped), 249 I40E_NETDEV_STAT(rx_missed_errors), 250 I40E_NETDEV_STAT(tx_dropped), 251 I40E_NETDEV_STAT(collisions), 252 I40E_NETDEV_STAT(rx_length_errors), 253 I40E_NETDEV_STAT(rx_crc_errors), 254}; 255 256static const struct i40e_stats i40e_gstrings_veb_stats[] = { 257 I40E_VEB_STAT("veb.rx_bytes", stats.rx_bytes), 258 I40E_VEB_STAT("veb.tx_bytes", stats.tx_bytes), 259 I40E_VEB_STAT("veb.rx_unicast", stats.rx_unicast), 260 I40E_VEB_STAT("veb.tx_unicast", stats.tx_unicast), 261 I40E_VEB_STAT("veb.rx_multicast", stats.rx_multicast), 262 I40E_VEB_STAT("veb.tx_multicast", stats.tx_multicast), 263 I40E_VEB_STAT("veb.rx_broadcast", stats.rx_broadcast), 264 I40E_VEB_STAT("veb.tx_broadcast", stats.tx_broadcast), 265 I40E_VEB_STAT("veb.rx_discards", stats.rx_discards), 266 I40E_VEB_STAT("veb.tx_discards", stats.tx_discards), 267 I40E_VEB_STAT("veb.tx_errors", stats.tx_errors), 268 I40E_VEB_STAT("veb.rx_unknown_protocol", stats.rx_unknown_protocol), 269}; 270 271struct i40e_cp_veb_tc_stats { 272 u64 tc_rx_packets; 273 u64 tc_rx_bytes; 274 u64 tc_tx_packets; 275 u64 tc_tx_bytes; 276}; 277 278static const struct i40e_stats i40e_gstrings_veb_tc_stats[] = { 279 I40E_VEB_TC_STAT("veb.tc_%u_tx_packets", tc_tx_packets), 280 I40E_VEB_TC_STAT("veb.tc_%u_tx_bytes", tc_tx_bytes), 281 I40E_VEB_TC_STAT("veb.tc_%u_rx_packets", tc_rx_packets), 282 I40E_VEB_TC_STAT("veb.tc_%u_rx_bytes", tc_rx_bytes), 283}; 284 285static const struct i40e_stats i40e_gstrings_misc_stats[] = { 286 I40E_VSI_STAT("rx_unicast", eth_stats.rx_unicast), 287 I40E_VSI_STAT("tx_unicast", eth_stats.tx_unicast), 288 I40E_VSI_STAT("rx_multicast", eth_stats.rx_multicast), 289 I40E_VSI_STAT("tx_multicast", eth_stats.tx_multicast), 290 I40E_VSI_STAT("rx_broadcast", eth_stats.rx_broadcast), 291 I40E_VSI_STAT("tx_broadcast", eth_stats.tx_broadcast), 292 I40E_VSI_STAT("rx_unknown_protocol", eth_stats.rx_unknown_protocol), 293 I40E_VSI_STAT("tx_linearize", tx_linearize), 294 I40E_VSI_STAT("tx_force_wb", tx_force_wb), 295 I40E_VSI_STAT("tx_busy", tx_busy), 296 I40E_VSI_STAT("tx_stopped", tx_stopped), 297 I40E_VSI_STAT("rx_alloc_fail", rx_buf_failed), 298 I40E_VSI_STAT("rx_pg_alloc_fail", rx_page_failed), 299 I40E_VSI_STAT("rx_cache_reuse", rx_page_reuse), 300 I40E_VSI_STAT("rx_cache_alloc", rx_page_alloc), 301 I40E_VSI_STAT("rx_cache_waive", rx_page_waive), 302 I40E_VSI_STAT("rx_cache_busy", rx_page_busy), 303 I40E_VSI_STAT("tx_restart", tx_restart), 304}; 305 306/* These PF_STATs might look like duplicates of some NETDEV_STATs, 307 * but they are separate. This device supports Virtualization, and 308 * as such might have several netdevs supporting VMDq and FCoE going 309 * through a single port. The NETDEV_STATs are for individual netdevs 310 * seen at the top of the stack, and the PF_STATs are for the physical 311 * function at the bottom of the stack hosting those netdevs. 312 * 313 * The PF_STATs are appended to the netdev stats only when ethtool -S 314 * is queried on the base PF netdev, not on the VMDq or FCoE netdev. 315 */ 316static const struct i40e_stats i40e_gstrings_stats[] = { 317 I40E_PF_STAT("port.rx_bytes", stats.eth.rx_bytes), 318 I40E_PF_STAT("port.tx_bytes", stats.eth.tx_bytes), 319 I40E_PF_STAT("port.rx_unicast", stats.eth.rx_unicast), 320 I40E_PF_STAT("port.tx_unicast", stats.eth.tx_unicast), 321 I40E_PF_STAT("port.rx_multicast", stats.eth.rx_multicast), 322 I40E_PF_STAT("port.tx_multicast", stats.eth.tx_multicast), 323 I40E_PF_STAT("port.rx_broadcast", stats.eth.rx_broadcast), 324 I40E_PF_STAT("port.tx_broadcast", stats.eth.tx_broadcast), 325 I40E_PF_STAT("port.tx_errors", stats.eth.tx_errors), 326 I40E_PF_STAT("port.rx_discards", stats.eth.rx_discards), 327 I40E_PF_STAT("port.tx_dropped_link_down", stats.tx_dropped_link_down), 328 I40E_PF_STAT("port.rx_crc_errors", stats.crc_errors), 329 I40E_PF_STAT("port.illegal_bytes", stats.illegal_bytes), 330 I40E_PF_STAT("port.mac_local_faults", stats.mac_local_faults), 331 I40E_PF_STAT("port.mac_remote_faults", stats.mac_remote_faults), 332 I40E_PF_STAT("port.tx_timeout", tx_timeout_count), 333 I40E_PF_STAT("port.rx_csum_bad", hw_csum_rx_error), 334 I40E_PF_STAT("port.rx_length_errors", stats.rx_length_errors), 335 I40E_PF_STAT("port.link_xon_rx", stats.link_xon_rx), 336 I40E_PF_STAT("port.link_xoff_rx", stats.link_xoff_rx), 337 I40E_PF_STAT("port.link_xon_tx", stats.link_xon_tx), 338 I40E_PF_STAT("port.link_xoff_tx", stats.link_xoff_tx), 339 I40E_PF_STAT("port.rx_size_64", stats.rx_size_64), 340 I40E_PF_STAT("port.rx_size_127", stats.rx_size_127), 341 I40E_PF_STAT("port.rx_size_255", stats.rx_size_255), 342 I40E_PF_STAT("port.rx_size_511", stats.rx_size_511), 343 I40E_PF_STAT("port.rx_size_1023", stats.rx_size_1023), 344 I40E_PF_STAT("port.rx_size_1522", stats.rx_size_1522), 345 I40E_PF_STAT("port.rx_size_big", stats.rx_size_big), 346 I40E_PF_STAT("port.tx_size_64", stats.tx_size_64), 347 I40E_PF_STAT("port.tx_size_127", stats.tx_size_127), 348 I40E_PF_STAT("port.tx_size_255", stats.tx_size_255), 349 I40E_PF_STAT("port.tx_size_511", stats.tx_size_511), 350 I40E_PF_STAT("port.tx_size_1023", stats.tx_size_1023), 351 I40E_PF_STAT("port.tx_size_1522", stats.tx_size_1522), 352 I40E_PF_STAT("port.tx_size_big", stats.tx_size_big), 353 I40E_PF_STAT("port.rx_undersize", stats.rx_undersize), 354 I40E_PF_STAT("port.rx_fragments", stats.rx_fragments), 355 I40E_PF_STAT("port.rx_oversize", stats.rx_oversize), 356 I40E_PF_STAT("port.rx_jabber", stats.rx_jabber), 357 I40E_PF_STAT("port.VF_admin_queue_requests", vf_aq_requests), 358 I40E_PF_STAT("port.arq_overflows", arq_overflows), 359 I40E_PF_STAT("port.tx_hwtstamp_timeouts", tx_hwtstamp_timeouts), 360 I40E_PF_STAT("port.rx_hwtstamp_cleared", rx_hwtstamp_cleared), 361 I40E_PF_STAT("port.tx_hwtstamp_skipped", tx_hwtstamp_skipped), 362 I40E_PF_STAT("port.fdir_flush_cnt", fd_flush_cnt), 363 I40E_PF_STAT("port.fdir_atr_match", stats.fd_atr_match), 364 I40E_PF_STAT("port.fdir_atr_tunnel_match", stats.fd_atr_tunnel_match), 365 I40E_PF_STAT("port.fdir_atr_status", stats.fd_atr_status), 366 I40E_PF_STAT("port.fdir_sb_match", stats.fd_sb_match), 367 I40E_PF_STAT("port.fdir_sb_status", stats.fd_sb_status), 368 369 /* LPI stats */ 370 I40E_PF_STAT("port.tx_lpi_status", stats.tx_lpi_status), 371 I40E_PF_STAT("port.rx_lpi_status", stats.rx_lpi_status), 372 I40E_PF_STAT("port.tx_lpi_count", stats.tx_lpi_count), 373 I40E_PF_STAT("port.rx_lpi_count", stats.rx_lpi_count), 374}; 375 376struct i40e_pfc_stats { 377 u64 priority_xon_rx; 378 u64 priority_xoff_rx; 379 u64 priority_xon_tx; 380 u64 priority_xoff_tx; 381 u64 priority_xon_2_xoff; 382}; 383 384static const struct i40e_stats i40e_gstrings_pfc_stats[] = { 385 I40E_PFC_STAT("port.tx_priority_%u_xon_tx", priority_xon_tx), 386 I40E_PFC_STAT("port.tx_priority_%u_xoff_tx", priority_xoff_tx), 387 I40E_PFC_STAT("port.rx_priority_%u_xon_rx", priority_xon_rx), 388 I40E_PFC_STAT("port.rx_priority_%u_xoff_rx", priority_xoff_rx), 389 I40E_PFC_STAT("port.rx_priority_%u_xon_2_xoff", priority_xon_2_xoff), 390}; 391 392#define I40E_NETDEV_STATS_LEN ARRAY_SIZE(i40e_gstrings_net_stats) 393 394#define I40E_MISC_STATS_LEN ARRAY_SIZE(i40e_gstrings_misc_stats) 395 396#define I40E_VSI_STATS_LEN (I40E_NETDEV_STATS_LEN + I40E_MISC_STATS_LEN) 397 398#define I40E_PFC_STATS_LEN (ARRAY_SIZE(i40e_gstrings_pfc_stats) * \ 399 I40E_MAX_USER_PRIORITY) 400 401#define I40E_VEB_STATS_LEN (ARRAY_SIZE(i40e_gstrings_veb_stats) + \ 402 (ARRAY_SIZE(i40e_gstrings_veb_tc_stats) * \ 403 I40E_MAX_TRAFFIC_CLASS)) 404 405#define I40E_GLOBAL_STATS_LEN ARRAY_SIZE(i40e_gstrings_stats) 406 407#define I40E_PF_STATS_LEN (I40E_GLOBAL_STATS_LEN + \ 408 I40E_PFC_STATS_LEN + \ 409 I40E_VEB_STATS_LEN + \ 410 I40E_VSI_STATS_LEN) 411 412/* Length of stats for a single queue */ 413#define I40E_QUEUE_STATS_LEN ARRAY_SIZE(i40e_gstrings_queue_stats) 414 415enum i40e_ethtool_test_id { 416 I40E_ETH_TEST_REG = 0, 417 I40E_ETH_TEST_EEPROM, 418 I40E_ETH_TEST_INTR, 419 I40E_ETH_TEST_LINK, 420}; 421 422static const char i40e_gstrings_test[][ETH_GSTRING_LEN] = { 423 "Register test (offline)", 424 "Eeprom test (offline)", 425 "Interrupt test (offline)", 426 "Link test (on/offline)" 427}; 428 429#define I40E_TEST_LEN (sizeof(i40e_gstrings_test) / ETH_GSTRING_LEN) 430 431struct i40e_priv_flags { 432 char flag_string[ETH_GSTRING_LEN]; 433 u8 bitno; 434 bool read_only; 435}; 436 437#define I40E_PRIV_FLAG(_name, _bitno, _read_only) { \ 438 .flag_string = _name, \ 439 .bitno = _bitno, \ 440 .read_only = _read_only, \ 441} 442 443static const struct i40e_priv_flags i40e_gstrings_priv_flags[] = { 444 /* NOTE: MFP setting cannot be changed */ 445 I40E_PRIV_FLAG("MFP", I40E_FLAG_MFP_ENA, 1), 446 I40E_PRIV_FLAG("total-port-shutdown", 447 I40E_FLAG_TOTAL_PORT_SHUTDOWN_ENA, 1), 448 I40E_PRIV_FLAG("LinkPolling", I40E_FLAG_LINK_POLLING_ENA, 0), 449 I40E_PRIV_FLAG("flow-director-atr", I40E_FLAG_FD_ATR_ENA, 0), 450 I40E_PRIV_FLAG("veb-stats", I40E_FLAG_VEB_STATS_ENA, 0), 451 I40E_PRIV_FLAG("hw-atr-eviction", I40E_FLAG_HW_ATR_EVICT_ENA, 0), 452 I40E_PRIV_FLAG("link-down-on-close", 453 I40E_FLAG_LINK_DOWN_ON_CLOSE_ENA, 0), 454 I40E_PRIV_FLAG("legacy-rx", I40E_FLAG_LEGACY_RX_ENA, 0), 455 I40E_PRIV_FLAG("disable-source-pruning", 456 I40E_FLAG_SOURCE_PRUNING_DIS, 0), 457 I40E_PRIV_FLAG("disable-fw-lldp", I40E_FLAG_FW_LLDP_DIS, 0), 458 I40E_PRIV_FLAG("rs-fec", I40E_FLAG_RS_FEC, 0), 459 I40E_PRIV_FLAG("base-r-fec", I40E_FLAG_BASE_R_FEC, 0), 460 I40E_PRIV_FLAG("vf-vlan-pruning", 461 I40E_FLAG_VF_VLAN_PRUNING_ENA, 0), 462}; 463 464#define I40E_PRIV_FLAGS_STR_LEN ARRAY_SIZE(i40e_gstrings_priv_flags) 465 466/* Private flags with a global effect, restricted to PF 0 */ 467static const struct i40e_priv_flags i40e_gl_gstrings_priv_flags[] = { 468 I40E_PRIV_FLAG("vf-true-promisc-support", 469 I40E_FLAG_TRUE_PROMISC_ENA, 0), 470}; 471 472#define I40E_GL_PRIV_FLAGS_STR_LEN ARRAY_SIZE(i40e_gl_gstrings_priv_flags) 473 474/** 475 * i40e_partition_setting_complaint - generic complaint for MFP restriction 476 * @pf: the PF struct 477 **/ 478static void i40e_partition_setting_complaint(struct i40e_pf *pf) 479{ 480 dev_info(&pf->pdev->dev, 481 "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"); 482} 483 484/** 485 * i40e_phy_type_to_ethtool - convert the phy_types to ethtool link modes 486 * @pf: PF struct with phy_types 487 * @ks: ethtool link ksettings struct to fill out 488 * 489 **/ 490static void i40e_phy_type_to_ethtool(struct i40e_pf *pf, 491 struct ethtool_link_ksettings *ks) 492{ 493 struct i40e_link_status *hw_link_info = &pf->hw.phy.link_info; 494 u64 phy_types = pf->hw.phy.phy_types; 495 496 ethtool_link_ksettings_zero_link_mode(ks, supported); 497 ethtool_link_ksettings_zero_link_mode(ks, advertising); 498 499 if (phy_types & I40E_CAP_PHY_TYPE_SGMII) { 500 ethtool_link_ksettings_add_link_mode(ks, supported, 501 1000baseT_Full); 502 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_1GB) 503 ethtool_link_ksettings_add_link_mode(ks, advertising, 504 1000baseT_Full); 505 if (test_bit(I40E_HW_CAP_100M_SGMII, pf->hw.caps)) { 506 ethtool_link_ksettings_add_link_mode(ks, supported, 507 100baseT_Full); 508 ethtool_link_ksettings_add_link_mode(ks, advertising, 509 100baseT_Full); 510 } 511 } 512 if (phy_types & I40E_CAP_PHY_TYPE_XAUI || 513 phy_types & I40E_CAP_PHY_TYPE_XFI || 514 phy_types & I40E_CAP_PHY_TYPE_SFI || 515 phy_types & I40E_CAP_PHY_TYPE_10GBASE_SFPP_CU || 516 phy_types & I40E_CAP_PHY_TYPE_10GBASE_AOC) { 517 ethtool_link_ksettings_add_link_mode(ks, supported, 518 10000baseT_Full); 519 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_10GB) 520 ethtool_link_ksettings_add_link_mode(ks, advertising, 521 10000baseT_Full); 522 } 523 if (phy_types & I40E_CAP_PHY_TYPE_10GBASE_T) { 524 ethtool_link_ksettings_add_link_mode(ks, supported, 525 10000baseT_Full); 526 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_10GB) 527 ethtool_link_ksettings_add_link_mode(ks, advertising, 528 10000baseT_Full); 529 } 530 if (phy_types & I40E_CAP_PHY_TYPE_2_5GBASE_T) { 531 ethtool_link_ksettings_add_link_mode(ks, supported, 532 2500baseT_Full); 533 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_2_5GB) 534 ethtool_link_ksettings_add_link_mode(ks, advertising, 535 2500baseT_Full); 536 } 537 if (phy_types & I40E_CAP_PHY_TYPE_5GBASE_T) { 538 ethtool_link_ksettings_add_link_mode(ks, supported, 539 5000baseT_Full); 540 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_5GB) 541 ethtool_link_ksettings_add_link_mode(ks, advertising, 542 5000baseT_Full); 543 } 544 if (phy_types & I40E_CAP_PHY_TYPE_XLAUI || 545 phy_types & I40E_CAP_PHY_TYPE_XLPPI || 546 phy_types & I40E_CAP_PHY_TYPE_40GBASE_AOC) 547 ethtool_link_ksettings_add_link_mode(ks, supported, 548 40000baseCR4_Full); 549 if (phy_types & I40E_CAP_PHY_TYPE_40GBASE_CR4_CU || 550 phy_types & I40E_CAP_PHY_TYPE_40GBASE_CR4) { 551 ethtool_link_ksettings_add_link_mode(ks, supported, 552 40000baseCR4_Full); 553 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_40GB) 554 ethtool_link_ksettings_add_link_mode(ks, advertising, 555 40000baseCR4_Full); 556 } 557 if (phy_types & I40E_CAP_PHY_TYPE_100BASE_TX) { 558 ethtool_link_ksettings_add_link_mode(ks, supported, 559 100baseT_Full); 560 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_100MB) 561 ethtool_link_ksettings_add_link_mode(ks, advertising, 562 100baseT_Full); 563 } 564 if (phy_types & I40E_CAP_PHY_TYPE_1000BASE_T) { 565 ethtool_link_ksettings_add_link_mode(ks, supported, 566 1000baseT_Full); 567 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_1GB) 568 ethtool_link_ksettings_add_link_mode(ks, advertising, 569 1000baseT_Full); 570 } 571 if (phy_types & I40E_CAP_PHY_TYPE_40GBASE_SR4) { 572 ethtool_link_ksettings_add_link_mode(ks, supported, 573 40000baseSR4_Full); 574 ethtool_link_ksettings_add_link_mode(ks, advertising, 575 40000baseSR4_Full); 576 } 577 if (phy_types & I40E_CAP_PHY_TYPE_40GBASE_LR4) { 578 ethtool_link_ksettings_add_link_mode(ks, supported, 579 40000baseLR4_Full); 580 ethtool_link_ksettings_add_link_mode(ks, advertising, 581 40000baseLR4_Full); 582 } 583 if (phy_types & I40E_CAP_PHY_TYPE_40GBASE_KR4) { 584 ethtool_link_ksettings_add_link_mode(ks, supported, 585 40000baseKR4_Full); 586 ethtool_link_ksettings_add_link_mode(ks, advertising, 587 40000baseKR4_Full); 588 } 589 if (phy_types & I40E_CAP_PHY_TYPE_20GBASE_KR2) { 590 ethtool_link_ksettings_add_link_mode(ks, supported, 591 20000baseKR2_Full); 592 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_20GB) 593 ethtool_link_ksettings_add_link_mode(ks, advertising, 594 20000baseKR2_Full); 595 } 596 if (phy_types & I40E_CAP_PHY_TYPE_10GBASE_KX4) { 597 ethtool_link_ksettings_add_link_mode(ks, supported, 598 10000baseKX4_Full); 599 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_10GB) 600 ethtool_link_ksettings_add_link_mode(ks, advertising, 601 10000baseKX4_Full); 602 } 603 if (phy_types & I40E_CAP_PHY_TYPE_10GBASE_KR && 604 !test_bit(I40E_HW_CAP_CRT_RETIMER, pf->hw.caps)) { 605 ethtool_link_ksettings_add_link_mode(ks, supported, 606 10000baseKR_Full); 607 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_10GB) 608 ethtool_link_ksettings_add_link_mode(ks, advertising, 609 10000baseKR_Full); 610 } 611 if (phy_types & I40E_CAP_PHY_TYPE_1000BASE_KX && 612 !test_bit(I40E_HW_CAP_CRT_RETIMER, pf->hw.caps)) { 613 ethtool_link_ksettings_add_link_mode(ks, supported, 614 1000baseKX_Full); 615 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_1GB) 616 ethtool_link_ksettings_add_link_mode(ks, advertising, 617 1000baseKX_Full); 618 } 619 /* need to add 25G PHY types */ 620 if (phy_types & I40E_CAP_PHY_TYPE_25GBASE_KR) { 621 ethtool_link_ksettings_add_link_mode(ks, supported, 622 25000baseKR_Full); 623 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_25GB) 624 ethtool_link_ksettings_add_link_mode(ks, advertising, 625 25000baseKR_Full); 626 } 627 if (phy_types & I40E_CAP_PHY_TYPE_25GBASE_CR) { 628 ethtool_link_ksettings_add_link_mode(ks, supported, 629 25000baseCR_Full); 630 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_25GB) 631 ethtool_link_ksettings_add_link_mode(ks, advertising, 632 25000baseCR_Full); 633 } 634 if (phy_types & I40E_CAP_PHY_TYPE_25GBASE_SR || 635 phy_types & I40E_CAP_PHY_TYPE_25GBASE_LR) { 636 ethtool_link_ksettings_add_link_mode(ks, supported, 637 25000baseSR_Full); 638 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_25GB) 639 ethtool_link_ksettings_add_link_mode(ks, advertising, 640 25000baseSR_Full); 641 } 642 if (phy_types & I40E_CAP_PHY_TYPE_25GBASE_AOC || 643 phy_types & I40E_CAP_PHY_TYPE_25GBASE_ACC) { 644 ethtool_link_ksettings_add_link_mode(ks, supported, 645 25000baseCR_Full); 646 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_25GB) 647 ethtool_link_ksettings_add_link_mode(ks, advertising, 648 25000baseCR_Full); 649 } 650 if (phy_types & I40E_CAP_PHY_TYPE_25GBASE_KR || 651 phy_types & I40E_CAP_PHY_TYPE_25GBASE_CR || 652 phy_types & I40E_CAP_PHY_TYPE_25GBASE_SR || 653 phy_types & I40E_CAP_PHY_TYPE_25GBASE_LR || 654 phy_types & I40E_CAP_PHY_TYPE_25GBASE_AOC || 655 phy_types & I40E_CAP_PHY_TYPE_25GBASE_ACC) { 656 ethtool_link_ksettings_add_link_mode(ks, supported, FEC_NONE); 657 ethtool_link_ksettings_add_link_mode(ks, supported, FEC_RS); 658 ethtool_link_ksettings_add_link_mode(ks, supported, FEC_BASER); 659 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_25GB) { 660 ethtool_link_ksettings_add_link_mode(ks, advertising, 661 FEC_NONE); 662 ethtool_link_ksettings_add_link_mode(ks, advertising, 663 FEC_RS); 664 ethtool_link_ksettings_add_link_mode(ks, advertising, 665 FEC_BASER); 666 } 667 } 668 /* need to add new 10G PHY types */ 669 if (phy_types & I40E_CAP_PHY_TYPE_10GBASE_CR1 || 670 phy_types & I40E_CAP_PHY_TYPE_10GBASE_CR1_CU) { 671 ethtool_link_ksettings_add_link_mode(ks, supported, 672 10000baseCR_Full); 673 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_10GB) 674 ethtool_link_ksettings_add_link_mode(ks, advertising, 675 10000baseCR_Full); 676 } 677 if (phy_types & I40E_CAP_PHY_TYPE_10GBASE_SR) { 678 ethtool_link_ksettings_add_link_mode(ks, supported, 679 10000baseSR_Full); 680 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_10GB) 681 ethtool_link_ksettings_add_link_mode(ks, advertising, 682 10000baseSR_Full); 683 } 684 if (phy_types & I40E_CAP_PHY_TYPE_10GBASE_LR) { 685 ethtool_link_ksettings_add_link_mode(ks, supported, 686 10000baseLR_Full); 687 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_10GB) 688 ethtool_link_ksettings_add_link_mode(ks, advertising, 689 10000baseLR_Full); 690 } 691 if (phy_types & I40E_CAP_PHY_TYPE_1000BASE_SX || 692 phy_types & I40E_CAP_PHY_TYPE_1000BASE_LX || 693 phy_types & I40E_CAP_PHY_TYPE_1000BASE_T_OPTICAL) { 694 ethtool_link_ksettings_add_link_mode(ks, supported, 695 1000baseX_Full); 696 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_1GB) 697 ethtool_link_ksettings_add_link_mode(ks, advertising, 698 1000baseX_Full); 699 } 700 /* Autoneg PHY types */ 701 if (phy_types & I40E_CAP_PHY_TYPE_SGMII || 702 phy_types & I40E_CAP_PHY_TYPE_40GBASE_KR4 || 703 phy_types & I40E_CAP_PHY_TYPE_40GBASE_CR4_CU || 704 phy_types & I40E_CAP_PHY_TYPE_40GBASE_CR4 || 705 phy_types & I40E_CAP_PHY_TYPE_25GBASE_SR || 706 phy_types & I40E_CAP_PHY_TYPE_25GBASE_LR || 707 phy_types & I40E_CAP_PHY_TYPE_25GBASE_KR || 708 phy_types & I40E_CAP_PHY_TYPE_25GBASE_CR || 709 phy_types & I40E_CAP_PHY_TYPE_20GBASE_KR2 || 710 phy_types & I40E_CAP_PHY_TYPE_10GBASE_SR || 711 phy_types & I40E_CAP_PHY_TYPE_10GBASE_LR || 712 phy_types & I40E_CAP_PHY_TYPE_10GBASE_KX4 || 713 phy_types & I40E_CAP_PHY_TYPE_10GBASE_KR || 714 phy_types & I40E_CAP_PHY_TYPE_10GBASE_CR1_CU || 715 phy_types & I40E_CAP_PHY_TYPE_10GBASE_CR1 || 716 phy_types & I40E_CAP_PHY_TYPE_10GBASE_T || 717 phy_types & I40E_CAP_PHY_TYPE_5GBASE_T || 718 phy_types & I40E_CAP_PHY_TYPE_2_5GBASE_T || 719 phy_types & I40E_CAP_PHY_TYPE_1000BASE_T_OPTICAL || 720 phy_types & I40E_CAP_PHY_TYPE_1000BASE_T || 721 phy_types & I40E_CAP_PHY_TYPE_1000BASE_SX || 722 phy_types & I40E_CAP_PHY_TYPE_1000BASE_LX || 723 phy_types & I40E_CAP_PHY_TYPE_1000BASE_KX || 724 phy_types & I40E_CAP_PHY_TYPE_100BASE_TX) { 725 ethtool_link_ksettings_add_link_mode(ks, supported, 726 Autoneg); 727 ethtool_link_ksettings_add_link_mode(ks, advertising, 728 Autoneg); 729 } 730} 731 732/** 733 * i40e_get_settings_link_up_fec - Get the FEC mode encoding from mask 734 * @req_fec_info: mask request FEC info 735 * @ks: ethtool ksettings to fill in 736 **/ 737static void i40e_get_settings_link_up_fec(u8 req_fec_info, 738 struct ethtool_link_ksettings *ks) 739{ 740 ethtool_link_ksettings_add_link_mode(ks, supported, FEC_NONE); 741 ethtool_link_ksettings_add_link_mode(ks, supported, FEC_RS); 742 ethtool_link_ksettings_add_link_mode(ks, supported, FEC_BASER); 743 744 if ((I40E_AQ_SET_FEC_REQUEST_RS & req_fec_info) && 745 (I40E_AQ_SET_FEC_REQUEST_KR & req_fec_info)) { 746 ethtool_link_ksettings_add_link_mode(ks, advertising, 747 FEC_NONE); 748 ethtool_link_ksettings_add_link_mode(ks, advertising, 749 FEC_BASER); 750 ethtool_link_ksettings_add_link_mode(ks, advertising, FEC_RS); 751 } else if (I40E_AQ_SET_FEC_REQUEST_RS & req_fec_info) { 752 ethtool_link_ksettings_add_link_mode(ks, advertising, FEC_RS); 753 } else if (I40E_AQ_SET_FEC_REQUEST_KR & req_fec_info) { 754 ethtool_link_ksettings_add_link_mode(ks, advertising, 755 FEC_BASER); 756 } else { 757 ethtool_link_ksettings_add_link_mode(ks, advertising, 758 FEC_NONE); 759 } 760} 761 762/** 763 * i40e_get_settings_link_up - Get the Link settings for when link is up 764 * @hw: hw structure 765 * @ks: ethtool ksettings to fill in 766 * @netdev: network interface device structure 767 * @pf: pointer to physical function struct 768 **/ 769static void i40e_get_settings_link_up(struct i40e_hw *hw, 770 struct ethtool_link_ksettings *ks, 771 struct net_device *netdev, 772 struct i40e_pf *pf) 773{ 774 struct i40e_link_status *hw_link_info = &hw->phy.link_info; 775 struct ethtool_link_ksettings cap_ksettings; 776 u32 link_speed = hw_link_info->link_speed; 777 778 /* Initialize supported and advertised settings based on phy settings */ 779 switch (hw_link_info->phy_type) { 780 case I40E_PHY_TYPE_40GBASE_CR4: 781 case I40E_PHY_TYPE_40GBASE_CR4_CU: 782 ethtool_link_ksettings_add_link_mode(ks, supported, Autoneg); 783 ethtool_link_ksettings_add_link_mode(ks, supported, 784 40000baseCR4_Full); 785 ethtool_link_ksettings_add_link_mode(ks, advertising, Autoneg); 786 ethtool_link_ksettings_add_link_mode(ks, advertising, 787 40000baseCR4_Full); 788 break; 789 case I40E_PHY_TYPE_XLAUI: 790 case I40E_PHY_TYPE_XLPPI: 791 case I40E_PHY_TYPE_40GBASE_AOC: 792 ethtool_link_ksettings_add_link_mode(ks, supported, 793 40000baseCR4_Full); 794 ethtool_link_ksettings_add_link_mode(ks, advertising, 795 40000baseCR4_Full); 796 break; 797 case I40E_PHY_TYPE_40GBASE_SR4: 798 ethtool_link_ksettings_add_link_mode(ks, supported, 799 40000baseSR4_Full); 800 ethtool_link_ksettings_add_link_mode(ks, advertising, 801 40000baseSR4_Full); 802 break; 803 case I40E_PHY_TYPE_40GBASE_LR4: 804 ethtool_link_ksettings_add_link_mode(ks, supported, 805 40000baseLR4_Full); 806 ethtool_link_ksettings_add_link_mode(ks, advertising, 807 40000baseLR4_Full); 808 break; 809 case I40E_PHY_TYPE_25GBASE_SR: 810 case I40E_PHY_TYPE_25GBASE_LR: 811 case I40E_PHY_TYPE_10GBASE_SR: 812 case I40E_PHY_TYPE_10GBASE_LR: 813 case I40E_PHY_TYPE_1000BASE_SX: 814 case I40E_PHY_TYPE_1000BASE_LX: 815 ethtool_link_ksettings_add_link_mode(ks, supported, Autoneg); 816 ethtool_link_ksettings_add_link_mode(ks, advertising, Autoneg); 817 ethtool_link_ksettings_add_link_mode(ks, supported, 818 25000baseSR_Full); 819 ethtool_link_ksettings_add_link_mode(ks, advertising, 820 25000baseSR_Full); 821 i40e_get_settings_link_up_fec(hw_link_info->req_fec_info, ks); 822 ethtool_link_ksettings_add_link_mode(ks, supported, 823 10000baseSR_Full); 824 ethtool_link_ksettings_add_link_mode(ks, advertising, 825 10000baseSR_Full); 826 ethtool_link_ksettings_add_link_mode(ks, supported, 827 10000baseLR_Full); 828 ethtool_link_ksettings_add_link_mode(ks, advertising, 829 10000baseLR_Full); 830 ethtool_link_ksettings_add_link_mode(ks, supported, 831 1000baseX_Full); 832 ethtool_link_ksettings_add_link_mode(ks, advertising, 833 1000baseX_Full); 834 ethtool_link_ksettings_add_link_mode(ks, supported, 835 10000baseT_Full); 836 if (hw_link_info->module_type[2] & 837 I40E_MODULE_TYPE_1000BASE_SX || 838 hw_link_info->module_type[2] & 839 I40E_MODULE_TYPE_1000BASE_LX) { 840 ethtool_link_ksettings_add_link_mode(ks, supported, 841 1000baseT_Full); 842 if (hw_link_info->requested_speeds & 843 I40E_LINK_SPEED_1GB) 844 ethtool_link_ksettings_add_link_mode( 845 ks, advertising, 1000baseT_Full); 846 } 847 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_10GB) 848 ethtool_link_ksettings_add_link_mode(ks, advertising, 849 10000baseT_Full); 850 break; 851 case I40E_PHY_TYPE_10GBASE_T: 852 case I40E_PHY_TYPE_5GBASE_T_LINK_STATUS: 853 case I40E_PHY_TYPE_2_5GBASE_T_LINK_STATUS: 854 case I40E_PHY_TYPE_1000BASE_T: 855 case I40E_PHY_TYPE_100BASE_TX: 856 ethtool_link_ksettings_add_link_mode(ks, supported, Autoneg); 857 ethtool_link_ksettings_add_link_mode(ks, supported, 858 10000baseT_Full); 859 ethtool_link_ksettings_add_link_mode(ks, supported, 860 5000baseT_Full); 861 ethtool_link_ksettings_add_link_mode(ks, supported, 862 2500baseT_Full); 863 ethtool_link_ksettings_add_link_mode(ks, supported, 864 1000baseT_Full); 865 ethtool_link_ksettings_add_link_mode(ks, supported, 866 100baseT_Full); 867 ethtool_link_ksettings_add_link_mode(ks, advertising, Autoneg); 868 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_10GB) 869 ethtool_link_ksettings_add_link_mode(ks, advertising, 870 10000baseT_Full); 871 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_5GB) 872 ethtool_link_ksettings_add_link_mode(ks, advertising, 873 5000baseT_Full); 874 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_2_5GB) 875 ethtool_link_ksettings_add_link_mode(ks, advertising, 876 2500baseT_Full); 877 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_1GB) 878 ethtool_link_ksettings_add_link_mode(ks, advertising, 879 1000baseT_Full); 880 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_100MB) 881 ethtool_link_ksettings_add_link_mode(ks, advertising, 882 100baseT_Full); 883 break; 884 case I40E_PHY_TYPE_1000BASE_T_OPTICAL: 885 ethtool_link_ksettings_add_link_mode(ks, supported, Autoneg); 886 ethtool_link_ksettings_add_link_mode(ks, supported, 887 1000baseT_Full); 888 ethtool_link_ksettings_add_link_mode(ks, advertising, Autoneg); 889 ethtool_link_ksettings_add_link_mode(ks, advertising, 890 1000baseT_Full); 891 break; 892 case I40E_PHY_TYPE_10GBASE_CR1_CU: 893 case I40E_PHY_TYPE_10GBASE_CR1: 894 ethtool_link_ksettings_add_link_mode(ks, supported, Autoneg); 895 ethtool_link_ksettings_add_link_mode(ks, supported, 896 10000baseT_Full); 897 ethtool_link_ksettings_add_link_mode(ks, advertising, Autoneg); 898 ethtool_link_ksettings_add_link_mode(ks, advertising, 899 10000baseT_Full); 900 break; 901 case I40E_PHY_TYPE_XAUI: 902 case I40E_PHY_TYPE_XFI: 903 case I40E_PHY_TYPE_SFI: 904 case I40E_PHY_TYPE_10GBASE_SFPP_CU: 905 case I40E_PHY_TYPE_10GBASE_AOC: 906 ethtool_link_ksettings_add_link_mode(ks, supported, 907 10000baseT_Full); 908 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_10GB) 909 ethtool_link_ksettings_add_link_mode(ks, advertising, 910 10000baseT_Full); 911 i40e_get_settings_link_up_fec(hw_link_info->req_fec_info, ks); 912 break; 913 case I40E_PHY_TYPE_SGMII: 914 ethtool_link_ksettings_add_link_mode(ks, supported, Autoneg); 915 ethtool_link_ksettings_add_link_mode(ks, supported, 916 1000baseT_Full); 917 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_1GB) 918 ethtool_link_ksettings_add_link_mode(ks, advertising, 919 1000baseT_Full); 920 if (test_bit(I40E_HW_CAP_100M_SGMII, pf->hw.caps)) { 921 ethtool_link_ksettings_add_link_mode(ks, supported, 922 100baseT_Full); 923 if (hw_link_info->requested_speeds & 924 I40E_LINK_SPEED_100MB) 925 ethtool_link_ksettings_add_link_mode( 926 ks, advertising, 100baseT_Full); 927 } 928 break; 929 case I40E_PHY_TYPE_40GBASE_KR4: 930 case I40E_PHY_TYPE_25GBASE_KR: 931 case I40E_PHY_TYPE_20GBASE_KR2: 932 case I40E_PHY_TYPE_10GBASE_KR: 933 case I40E_PHY_TYPE_10GBASE_KX4: 934 case I40E_PHY_TYPE_1000BASE_KX: 935 ethtool_link_ksettings_add_link_mode(ks, supported, 936 40000baseKR4_Full); 937 ethtool_link_ksettings_add_link_mode(ks, supported, 938 25000baseKR_Full); 939 ethtool_link_ksettings_add_link_mode(ks, supported, 940 20000baseKR2_Full); 941 ethtool_link_ksettings_add_link_mode(ks, supported, 942 10000baseKR_Full); 943 ethtool_link_ksettings_add_link_mode(ks, supported, 944 10000baseKX4_Full); 945 ethtool_link_ksettings_add_link_mode(ks, supported, 946 1000baseKX_Full); 947 ethtool_link_ksettings_add_link_mode(ks, supported, Autoneg); 948 ethtool_link_ksettings_add_link_mode(ks, advertising, 949 40000baseKR4_Full); 950 ethtool_link_ksettings_add_link_mode(ks, advertising, 951 25000baseKR_Full); 952 i40e_get_settings_link_up_fec(hw_link_info->req_fec_info, ks); 953 ethtool_link_ksettings_add_link_mode(ks, advertising, 954 20000baseKR2_Full); 955 ethtool_link_ksettings_add_link_mode(ks, advertising, 956 10000baseKR_Full); 957 ethtool_link_ksettings_add_link_mode(ks, advertising, 958 10000baseKX4_Full); 959 ethtool_link_ksettings_add_link_mode(ks, advertising, 960 1000baseKX_Full); 961 ethtool_link_ksettings_add_link_mode(ks, advertising, Autoneg); 962 break; 963 case I40E_PHY_TYPE_25GBASE_CR: 964 ethtool_link_ksettings_add_link_mode(ks, supported, Autoneg); 965 ethtool_link_ksettings_add_link_mode(ks, advertising, Autoneg); 966 ethtool_link_ksettings_add_link_mode(ks, supported, 967 25000baseCR_Full); 968 ethtool_link_ksettings_add_link_mode(ks, advertising, 969 25000baseCR_Full); 970 i40e_get_settings_link_up_fec(hw_link_info->req_fec_info, ks); 971 972 break; 973 case I40E_PHY_TYPE_25GBASE_AOC: 974 case I40E_PHY_TYPE_25GBASE_ACC: 975 ethtool_link_ksettings_add_link_mode(ks, supported, Autoneg); 976 ethtool_link_ksettings_add_link_mode(ks, advertising, Autoneg); 977 ethtool_link_ksettings_add_link_mode(ks, supported, 978 25000baseCR_Full); 979 ethtool_link_ksettings_add_link_mode(ks, advertising, 980 25000baseCR_Full); 981 i40e_get_settings_link_up_fec(hw_link_info->req_fec_info, ks); 982 983 ethtool_link_ksettings_add_link_mode(ks, supported, 984 10000baseCR_Full); 985 ethtool_link_ksettings_add_link_mode(ks, advertising, 986 10000baseCR_Full); 987 break; 988 default: 989 /* if we got here and link is up something bad is afoot */ 990 netdev_info(netdev, 991 "WARNING: Link is up but PHY type 0x%x is not recognized, or incorrect cable is in use\n", 992 hw_link_info->phy_type); 993 } 994 995 /* Now that we've worked out everything that could be supported by the 996 * current PHY type, get what is supported by the NVM and intersect 997 * them to get what is truly supported 998 */ 999 memset(&cap_ksettings, 0, sizeof(struct ethtool_link_ksettings)); 1000 i40e_phy_type_to_ethtool(pf, &cap_ksettings); 1001 ethtool_intersect_link_masks(ks, &cap_ksettings); 1002 1003 /* Set speed and duplex */ 1004 switch (link_speed) { 1005 case I40E_LINK_SPEED_40GB: 1006 ks->base.speed = SPEED_40000; 1007 break; 1008 case I40E_LINK_SPEED_25GB: 1009 ks->base.speed = SPEED_25000; 1010 break; 1011 case I40E_LINK_SPEED_20GB: 1012 ks->base.speed = SPEED_20000; 1013 break; 1014 case I40E_LINK_SPEED_10GB: 1015 ks->base.speed = SPEED_10000; 1016 break; 1017 case I40E_LINK_SPEED_5GB: 1018 ks->base.speed = SPEED_5000; 1019 break; 1020 case I40E_LINK_SPEED_2_5GB: 1021 ks->base.speed = SPEED_2500; 1022 break; 1023 case I40E_LINK_SPEED_1GB: 1024 ks->base.speed = SPEED_1000; 1025 break; 1026 case I40E_LINK_SPEED_100MB: 1027 ks->base.speed = SPEED_100; 1028 break; 1029 default: 1030 ks->base.speed = SPEED_UNKNOWN; 1031 break; 1032 } 1033 ks->base.duplex = DUPLEX_FULL; 1034} 1035 1036/** 1037 * i40e_get_settings_link_down - Get the Link settings for when link is down 1038 * @hw: hw structure 1039 * @ks: ethtool ksettings to fill in 1040 * @pf: pointer to physical function struct 1041 * 1042 * Reports link settings that can be determined when link is down 1043 **/ 1044static void i40e_get_settings_link_down(struct i40e_hw *hw, 1045 struct ethtool_link_ksettings *ks, 1046 struct i40e_pf *pf) 1047{ 1048 /* link is down and the driver needs to fall back on 1049 * supported phy types to figure out what info to display 1050 */ 1051 i40e_phy_type_to_ethtool(pf, ks); 1052 1053 /* With no link speed and duplex are unknown */ 1054 ks->base.speed = SPEED_UNKNOWN; 1055 ks->base.duplex = DUPLEX_UNKNOWN; 1056} 1057 1058/** 1059 * i40e_get_link_ksettings - Get Link Speed and Duplex settings 1060 * @netdev: network interface device structure 1061 * @ks: ethtool ksettings 1062 * 1063 * Reports speed/duplex settings based on media_type 1064 **/ 1065static int i40e_get_link_ksettings(struct net_device *netdev, 1066 struct ethtool_link_ksettings *ks) 1067{ 1068 struct i40e_netdev_priv *np = netdev_priv(netdev); 1069 struct i40e_pf *pf = np->vsi->back; 1070 struct i40e_hw *hw = &pf->hw; 1071 struct i40e_link_status *hw_link_info = &hw->phy.link_info; 1072 bool link_up = hw_link_info->link_info & I40E_AQ_LINK_UP; 1073 1074 ethtool_link_ksettings_zero_link_mode(ks, supported); 1075 ethtool_link_ksettings_zero_link_mode(ks, advertising); 1076 1077 if (link_up) 1078 i40e_get_settings_link_up(hw, ks, netdev, pf); 1079 else 1080 i40e_get_settings_link_down(hw, ks, pf); 1081 1082 /* Now set the settings that don't rely on link being up/down */ 1083 /* Set autoneg settings */ 1084 ks->base.autoneg = ((hw_link_info->an_info & I40E_AQ_AN_COMPLETED) ? 1085 AUTONEG_ENABLE : AUTONEG_DISABLE); 1086 1087 /* Set media type settings */ 1088 switch (hw->phy.media_type) { 1089 case I40E_MEDIA_TYPE_BACKPLANE: 1090 ethtool_link_ksettings_add_link_mode(ks, supported, Autoneg); 1091 ethtool_link_ksettings_add_link_mode(ks, supported, Backplane); 1092 ethtool_link_ksettings_add_link_mode(ks, advertising, Autoneg); 1093 ethtool_link_ksettings_add_link_mode(ks, advertising, 1094 Backplane); 1095 ks->base.port = PORT_NONE; 1096 break; 1097 case I40E_MEDIA_TYPE_BASET: 1098 ethtool_link_ksettings_add_link_mode(ks, supported, TP); 1099 ethtool_link_ksettings_add_link_mode(ks, advertising, TP); 1100 ks->base.port = PORT_TP; 1101 break; 1102 case I40E_MEDIA_TYPE_DA: 1103 case I40E_MEDIA_TYPE_CX4: 1104 ethtool_link_ksettings_add_link_mode(ks, supported, FIBRE); 1105 ethtool_link_ksettings_add_link_mode(ks, advertising, FIBRE); 1106 ks->base.port = PORT_DA; 1107 break; 1108 case I40E_MEDIA_TYPE_FIBER: 1109 ethtool_link_ksettings_add_link_mode(ks, supported, FIBRE); 1110 ethtool_link_ksettings_add_link_mode(ks, advertising, FIBRE); 1111 ks->base.port = PORT_FIBRE; 1112 break; 1113 case I40E_MEDIA_TYPE_UNKNOWN: 1114 default: 1115 ks->base.port = PORT_OTHER; 1116 break; 1117 } 1118 1119 /* Set flow control settings */ 1120 ethtool_link_ksettings_add_link_mode(ks, supported, Pause); 1121 ethtool_link_ksettings_add_link_mode(ks, supported, Asym_Pause); 1122 1123 switch (hw->fc.requested_mode) { 1124 case I40E_FC_FULL: 1125 ethtool_link_ksettings_add_link_mode(ks, advertising, Pause); 1126 break; 1127 case I40E_FC_TX_PAUSE: 1128 ethtool_link_ksettings_add_link_mode(ks, advertising, 1129 Asym_Pause); 1130 break; 1131 case I40E_FC_RX_PAUSE: 1132 ethtool_link_ksettings_add_link_mode(ks, advertising, Pause); 1133 ethtool_link_ksettings_add_link_mode(ks, advertising, 1134 Asym_Pause); 1135 break; 1136 default: 1137 ethtool_link_ksettings_del_link_mode(ks, advertising, Pause); 1138 ethtool_link_ksettings_del_link_mode(ks, advertising, 1139 Asym_Pause); 1140 break; 1141 } 1142 1143 return 0; 1144} 1145 1146#define I40E_LBIT_SIZE 8 1147/** 1148 * i40e_speed_to_link_speed - Translate decimal speed to i40e_aq_link_speed 1149 * @speed: speed in decimal 1150 * @ks: ethtool ksettings 1151 * 1152 * Return i40e_aq_link_speed based on speed 1153 **/ 1154static enum i40e_aq_link_speed 1155i40e_speed_to_link_speed(__u32 speed, const struct ethtool_link_ksettings *ks) 1156{ 1157 enum i40e_aq_link_speed link_speed = I40E_LINK_SPEED_UNKNOWN; 1158 bool speed_changed = false; 1159 int i, j; 1160 1161 static const struct { 1162 __u32 speed; 1163 enum i40e_aq_link_speed link_speed; 1164 __u8 bit[I40E_LBIT_SIZE]; 1165 } i40e_speed_lut[] = { 1166#define I40E_LBIT(mode) ETHTOOL_LINK_MODE_ ## mode ##_Full_BIT 1167 {SPEED_100, I40E_LINK_SPEED_100MB, {I40E_LBIT(100baseT)} }, 1168 {SPEED_1000, I40E_LINK_SPEED_1GB, 1169 {I40E_LBIT(1000baseT), I40E_LBIT(1000baseX), 1170 I40E_LBIT(1000baseKX)} }, 1171 {SPEED_10000, I40E_LINK_SPEED_10GB, 1172 {I40E_LBIT(10000baseT), I40E_LBIT(10000baseKR), 1173 I40E_LBIT(10000baseLR), I40E_LBIT(10000baseCR), 1174 I40E_LBIT(10000baseSR), I40E_LBIT(10000baseKX4)} }, 1175 1176 {SPEED_25000, I40E_LINK_SPEED_25GB, 1177 {I40E_LBIT(25000baseCR), I40E_LBIT(25000baseKR), 1178 I40E_LBIT(25000baseSR)} }, 1179 {SPEED_40000, I40E_LINK_SPEED_40GB, 1180 {I40E_LBIT(40000baseKR4), I40E_LBIT(40000baseCR4), 1181 I40E_LBIT(40000baseSR4), I40E_LBIT(40000baseLR4)} }, 1182 {SPEED_20000, I40E_LINK_SPEED_20GB, 1183 {I40E_LBIT(20000baseKR2)} }, 1184 {SPEED_2500, I40E_LINK_SPEED_2_5GB, {I40E_LBIT(2500baseT)} }, 1185 {SPEED_5000, I40E_LINK_SPEED_5GB, {I40E_LBIT(2500baseT)} } 1186#undef I40E_LBIT 1187}; 1188 1189 for (i = 0; i < ARRAY_SIZE(i40e_speed_lut); i++) { 1190 if (i40e_speed_lut[i].speed == speed) { 1191 for (j = 0; j < I40E_LBIT_SIZE; j++) { 1192 if (test_bit(i40e_speed_lut[i].bit[j], 1193 ks->link_modes.supported)) { 1194 speed_changed = true; 1195 break; 1196 } 1197 if (!i40e_speed_lut[i].bit[j]) 1198 break; 1199 } 1200 if (speed_changed) { 1201 link_speed = i40e_speed_lut[i].link_speed; 1202 break; 1203 } 1204 } 1205 } 1206 return link_speed; 1207} 1208 1209#undef I40E_LBIT_SIZE 1210 1211/** 1212 * i40e_set_link_ksettings - Set Speed and Duplex 1213 * @netdev: network interface device structure 1214 * @ks: ethtool ksettings 1215 * 1216 * Set speed/duplex per media_types advertised/forced 1217 **/ 1218static int i40e_set_link_ksettings(struct net_device *netdev, 1219 const struct ethtool_link_ksettings *ks) 1220{ 1221 struct i40e_netdev_priv *np = netdev_priv(netdev); 1222 struct i40e_aq_get_phy_abilities_resp abilities; 1223 struct ethtool_link_ksettings safe_ks; 1224 struct ethtool_link_ksettings copy_ks; 1225 struct i40e_aq_set_phy_config config; 1226 struct i40e_pf *pf = np->vsi->back; 1227 enum i40e_aq_link_speed link_speed; 1228 struct i40e_vsi *vsi = np->vsi; 1229 struct i40e_hw *hw = &pf->hw; 1230 bool autoneg_changed = false; 1231 int timeout = 50; 1232 int status = 0; 1233 int err = 0; 1234 __u32 speed; 1235 u8 autoneg; 1236 1237 /* Changing port settings is not supported if this isn't the 1238 * port's controlling PF 1239 */ 1240 if (hw->partition_id != 1) { 1241 i40e_partition_setting_complaint(pf); 1242 return -EOPNOTSUPP; 1243 } 1244 if (vsi != pf->vsi[pf->lan_vsi]) 1245 return -EOPNOTSUPP; 1246 if (hw->phy.media_type != I40E_MEDIA_TYPE_BASET && 1247 hw->phy.media_type != I40E_MEDIA_TYPE_FIBER && 1248 hw->phy.media_type != I40E_MEDIA_TYPE_BACKPLANE && 1249 hw->phy.media_type != I40E_MEDIA_TYPE_DA && 1250 hw->phy.link_info.link_info & I40E_AQ_LINK_UP) 1251 return -EOPNOTSUPP; 1252 if (hw->device_id == I40E_DEV_ID_KX_B || 1253 hw->device_id == I40E_DEV_ID_KX_C || 1254 hw->device_id == I40E_DEV_ID_20G_KR2 || 1255 hw->device_id == I40E_DEV_ID_20G_KR2_A || 1256 hw->device_id == I40E_DEV_ID_25G_B || 1257 hw->device_id == I40E_DEV_ID_KX_X722) { 1258 netdev_info(netdev, "Changing settings is not supported on backplane.\n"); 1259 return -EOPNOTSUPP; 1260 } 1261 1262 /* copy the ksettings to copy_ks to avoid modifying the origin */ 1263 memcpy(©_ks, ks, sizeof(struct ethtool_link_ksettings)); 1264 1265 /* save autoneg out of ksettings */ 1266 autoneg = copy_ks.base.autoneg; 1267 speed = copy_ks.base.speed; 1268 1269 /* get our own copy of the bits to check against */ 1270 memset(&safe_ks, 0, sizeof(struct ethtool_link_ksettings)); 1271 safe_ks.base.cmd = copy_ks.base.cmd; 1272 safe_ks.base.link_mode_masks_nwords = 1273 copy_ks.base.link_mode_masks_nwords; 1274 i40e_get_link_ksettings(netdev, &safe_ks); 1275 1276 /* Get link modes supported by hardware and check against modes 1277 * requested by the user. Return an error if unsupported mode was set. 1278 */ 1279 if (!bitmap_subset(copy_ks.link_modes.advertising, 1280 safe_ks.link_modes.supported, 1281 __ETHTOOL_LINK_MODE_MASK_NBITS)) 1282 return -EINVAL; 1283 1284 /* set autoneg back to what it currently is */ 1285 copy_ks.base.autoneg = safe_ks.base.autoneg; 1286 copy_ks.base.speed = safe_ks.base.speed; 1287 1288 /* If copy_ks.base and safe_ks.base are not the same now, then they are 1289 * trying to set something that we do not support. 1290 */ 1291 if (memcmp(©_ks.base, &safe_ks.base, 1292 sizeof(struct ethtool_link_settings))) { 1293 netdev_err(netdev, "Only speed and autoneg are supported.\n"); 1294 return -EOPNOTSUPP; 1295 } 1296 1297 while (test_and_set_bit(__I40E_CONFIG_BUSY, pf->state)) { 1298 timeout--; 1299 if (!timeout) 1300 return -EBUSY; 1301 usleep_range(1000, 2000); 1302 } 1303 1304 /* Get the current phy config */ 1305 status = i40e_aq_get_phy_capabilities(hw, false, false, &abilities, 1306 NULL); 1307 if (status) { 1308 err = -EAGAIN; 1309 goto done; 1310 } 1311 1312 /* Copy abilities to config in case autoneg is not 1313 * set below 1314 */ 1315 memset(&config, 0, sizeof(struct i40e_aq_set_phy_config)); 1316 config.abilities = abilities.abilities; 1317 1318 /* Check autoneg */ 1319 if (autoneg == AUTONEG_ENABLE) { 1320 /* If autoneg was not already enabled */ 1321 if (!(hw->phy.link_info.an_info & I40E_AQ_AN_COMPLETED)) { 1322 /* If autoneg is not supported, return error */ 1323 if (!ethtool_link_ksettings_test_link_mode(&safe_ks, 1324 supported, 1325 Autoneg)) { 1326 netdev_info(netdev, "Autoneg not supported on this phy\n"); 1327 err = -EINVAL; 1328 goto done; 1329 } 1330 /* Autoneg is allowed to change */ 1331 config.abilities = abilities.abilities | 1332 I40E_AQ_PHY_ENABLE_AN; 1333 autoneg_changed = true; 1334 } 1335 } else { 1336 /* If autoneg is currently enabled */ 1337 if (hw->phy.link_info.an_info & I40E_AQ_AN_COMPLETED) { 1338 /* If autoneg is supported 10GBASE_T is the only PHY 1339 * that can disable it, so otherwise return error 1340 */ 1341 if (ethtool_link_ksettings_test_link_mode(&safe_ks, 1342 supported, 1343 Autoneg) && 1344 hw->phy.media_type != I40E_MEDIA_TYPE_BASET) { 1345 netdev_info(netdev, "Autoneg cannot be disabled on this phy\n"); 1346 err = -EINVAL; 1347 goto done; 1348 } 1349 /* Autoneg is allowed to change */ 1350 config.abilities = abilities.abilities & 1351 ~I40E_AQ_PHY_ENABLE_AN; 1352 autoneg_changed = true; 1353 } 1354 } 1355 1356 if (ethtool_link_ksettings_test_link_mode(ks, advertising, 1357 100baseT_Full)) 1358 config.link_speed |= I40E_LINK_SPEED_100MB; 1359 if (ethtool_link_ksettings_test_link_mode(ks, advertising, 1360 1000baseT_Full) || 1361 ethtool_link_ksettings_test_link_mode(ks, advertising, 1362 1000baseX_Full) || 1363 ethtool_link_ksettings_test_link_mode(ks, advertising, 1364 1000baseKX_Full)) 1365 config.link_speed |= I40E_LINK_SPEED_1GB; 1366 if (ethtool_link_ksettings_test_link_mode(ks, advertising, 1367 10000baseT_Full) || 1368 ethtool_link_ksettings_test_link_mode(ks, advertising, 1369 10000baseKX4_Full) || 1370 ethtool_link_ksettings_test_link_mode(ks, advertising, 1371 10000baseKR_Full) || 1372 ethtool_link_ksettings_test_link_mode(ks, advertising, 1373 10000baseCR_Full) || 1374 ethtool_link_ksettings_test_link_mode(ks, advertising, 1375 10000baseSR_Full) || 1376 ethtool_link_ksettings_test_link_mode(ks, advertising, 1377 10000baseLR_Full)) 1378 config.link_speed |= I40E_LINK_SPEED_10GB; 1379 if (ethtool_link_ksettings_test_link_mode(ks, advertising, 1380 2500baseT_Full)) 1381 config.link_speed |= I40E_LINK_SPEED_2_5GB; 1382 if (ethtool_link_ksettings_test_link_mode(ks, advertising, 1383 5000baseT_Full)) 1384 config.link_speed |= I40E_LINK_SPEED_5GB; 1385 if (ethtool_link_ksettings_test_link_mode(ks, advertising, 1386 20000baseKR2_Full)) 1387 config.link_speed |= I40E_LINK_SPEED_20GB; 1388 if (ethtool_link_ksettings_test_link_mode(ks, advertising, 1389 25000baseCR_Full) || 1390 ethtool_link_ksettings_test_link_mode(ks, advertising, 1391 25000baseKR_Full) || 1392 ethtool_link_ksettings_test_link_mode(ks, advertising, 1393 25000baseSR_Full)) 1394 config.link_speed |= I40E_LINK_SPEED_25GB; 1395 if (ethtool_link_ksettings_test_link_mode(ks, advertising, 1396 40000baseKR4_Full) || 1397 ethtool_link_ksettings_test_link_mode(ks, advertising, 1398 40000baseCR4_Full) || 1399 ethtool_link_ksettings_test_link_mode(ks, advertising, 1400 40000baseSR4_Full) || 1401 ethtool_link_ksettings_test_link_mode(ks, advertising, 1402 40000baseLR4_Full)) 1403 config.link_speed |= I40E_LINK_SPEED_40GB; 1404 1405 /* Autonegotiation must be disabled to change speed */ 1406 if ((speed != SPEED_UNKNOWN && safe_ks.base.speed != speed) && 1407 (autoneg == AUTONEG_DISABLE || 1408 (safe_ks.base.autoneg == AUTONEG_DISABLE && !autoneg_changed))) { 1409 link_speed = i40e_speed_to_link_speed(speed, ks); 1410 if (link_speed == I40E_LINK_SPEED_UNKNOWN) { 1411 netdev_info(netdev, "Given speed is not supported\n"); 1412 err = -EOPNOTSUPP; 1413 goto done; 1414 } else { 1415 config.link_speed = link_speed; 1416 } 1417 } else { 1418 if (safe_ks.base.speed != speed) { 1419 netdev_info(netdev, 1420 "Unable to set speed, disable autoneg\n"); 1421 err = -EOPNOTSUPP; 1422 goto done; 1423 } 1424 } 1425 1426 /* If speed didn't get set, set it to what it currently is. 1427 * This is needed because if advertise is 0 (as it is when autoneg 1428 * is disabled) then speed won't get set. 1429 */ 1430 if (!config.link_speed) 1431 config.link_speed = abilities.link_speed; 1432 if (autoneg_changed || abilities.link_speed != config.link_speed) { 1433 /* copy over the rest of the abilities */ 1434 config.phy_type = abilities.phy_type; 1435 config.phy_type_ext = abilities.phy_type_ext; 1436 config.eee_capability = abilities.eee_capability; 1437 config.eeer = abilities.eeer_val; 1438 config.low_power_ctrl = abilities.d3_lpan; 1439 config.fec_config = abilities.fec_cfg_curr_mod_ext_info & 1440 I40E_AQ_PHY_FEC_CONFIG_MASK; 1441 1442 /* save the requested speeds */ 1443 hw->phy.link_info.requested_speeds = config.link_speed; 1444 /* set link and auto negotiation so changes take effect */ 1445 config.abilities |= I40E_AQ_PHY_ENABLE_ATOMIC_LINK; 1446 /* If link is up put link down */ 1447 if (hw->phy.link_info.link_info & I40E_AQ_LINK_UP) { 1448 /* Tell the OS link is going down, the link will go 1449 * back up when fw says it is ready asynchronously 1450 */ 1451 i40e_print_link_message(vsi, false); 1452 netif_carrier_off(netdev); 1453 netif_tx_stop_all_queues(netdev); 1454 } 1455 1456 /* make the aq call */ 1457 status = i40e_aq_set_phy_config(hw, &config, NULL); 1458 if (status) { 1459 netdev_info(netdev, 1460 "Set phy config failed, err %pe aq_err %s\n", 1461 ERR_PTR(status), 1462 i40e_aq_str(hw, hw->aq.asq_last_status)); 1463 err = -EAGAIN; 1464 goto done; 1465 } 1466 1467 status = i40e_update_link_info(hw); 1468 if (status) 1469 netdev_dbg(netdev, 1470 "Updating link info failed with err %pe aq_err %s\n", 1471 ERR_PTR(status), 1472 i40e_aq_str(hw, hw->aq.asq_last_status)); 1473 1474 } else { 1475 netdev_info(netdev, "Nothing changed, exiting without setting anything.\n"); 1476 } 1477 1478done: 1479 clear_bit(__I40E_CONFIG_BUSY, pf->state); 1480 1481 return err; 1482} 1483 1484static int i40e_set_fec_cfg(struct net_device *netdev, u8 fec_cfg) 1485{ 1486 struct i40e_netdev_priv *np = netdev_priv(netdev); 1487 struct i40e_aq_get_phy_abilities_resp abilities; 1488 struct i40e_pf *pf = np->vsi->back; 1489 struct i40e_hw *hw = &pf->hw; 1490 int status = 0; 1491 int err = 0; 1492 1493 /* Get the current phy config */ 1494 memset(&abilities, 0, sizeof(abilities)); 1495 status = i40e_aq_get_phy_capabilities(hw, false, false, &abilities, 1496 NULL); 1497 if (status) { 1498 err = -EAGAIN; 1499 goto done; 1500 } 1501 1502 if (abilities.fec_cfg_curr_mod_ext_info != fec_cfg) { 1503 struct i40e_aq_set_phy_config config; 1504 1505 memset(&config, 0, sizeof(config)); 1506 config.phy_type = abilities.phy_type; 1507 config.abilities = abilities.abilities | 1508 I40E_AQ_PHY_ENABLE_ATOMIC_LINK; 1509 config.phy_type_ext = abilities.phy_type_ext; 1510 config.link_speed = abilities.link_speed; 1511 config.eee_capability = abilities.eee_capability; 1512 config.eeer = abilities.eeer_val; 1513 config.low_power_ctrl = abilities.d3_lpan; 1514 config.fec_config = fec_cfg & I40E_AQ_PHY_FEC_CONFIG_MASK; 1515 status = i40e_aq_set_phy_config(hw, &config, NULL); 1516 if (status) { 1517 netdev_info(netdev, 1518 "Set phy config failed, err %pe aq_err %s\n", 1519 ERR_PTR(status), 1520 i40e_aq_str(hw, hw->aq.asq_last_status)); 1521 err = -EAGAIN; 1522 goto done; 1523 } 1524 i40e_set_fec_in_flags(fec_cfg, pf->flags); 1525 status = i40e_update_link_info(hw); 1526 if (status) 1527 /* debug level message only due to relation to the link 1528 * itself rather than to the FEC settings 1529 * (e.g. no physical connection etc.) 1530 */ 1531 netdev_dbg(netdev, 1532 "Updating link info failed with err %pe aq_err %s\n", 1533 ERR_PTR(status), 1534 i40e_aq_str(hw, hw->aq.asq_last_status)); 1535 } 1536 1537done: 1538 return err; 1539} 1540 1541static int i40e_get_fec_param(struct net_device *netdev, 1542 struct ethtool_fecparam *fecparam) 1543{ 1544 struct i40e_netdev_priv *np = netdev_priv(netdev); 1545 struct i40e_aq_get_phy_abilities_resp abilities; 1546 struct i40e_pf *pf = np->vsi->back; 1547 struct i40e_hw *hw = &pf->hw; 1548 int status = 0; 1549 int err = 0; 1550 u8 fec_cfg; 1551 1552 /* Get the current phy config */ 1553 memset(&abilities, 0, sizeof(abilities)); 1554 status = i40e_aq_get_phy_capabilities(hw, false, false, &abilities, 1555 NULL); 1556 if (status) { 1557 err = -EAGAIN; 1558 goto done; 1559 } 1560 1561 fecparam->fec = 0; 1562 fec_cfg = abilities.fec_cfg_curr_mod_ext_info; 1563 if (fec_cfg & I40E_AQ_SET_FEC_AUTO) 1564 fecparam->fec |= ETHTOOL_FEC_AUTO; 1565 else if (fec_cfg & (I40E_AQ_SET_FEC_REQUEST_RS | 1566 I40E_AQ_SET_FEC_ABILITY_RS)) 1567 fecparam->fec |= ETHTOOL_FEC_RS; 1568 else if (fec_cfg & (I40E_AQ_SET_FEC_REQUEST_KR | 1569 I40E_AQ_SET_FEC_ABILITY_KR)) 1570 fecparam->fec |= ETHTOOL_FEC_BASER; 1571 if (fec_cfg == 0) 1572 fecparam->fec |= ETHTOOL_FEC_OFF; 1573 1574 if (hw->phy.link_info.fec_info & I40E_AQ_CONFIG_FEC_KR_ENA) 1575 fecparam->active_fec = ETHTOOL_FEC_BASER; 1576 else if (hw->phy.link_info.fec_info & I40E_AQ_CONFIG_FEC_RS_ENA) 1577 fecparam->active_fec = ETHTOOL_FEC_RS; 1578 else 1579 fecparam->active_fec = ETHTOOL_FEC_OFF; 1580done: 1581 return err; 1582} 1583 1584static int i40e_set_fec_param(struct net_device *netdev, 1585 struct ethtool_fecparam *fecparam) 1586{ 1587 struct i40e_netdev_priv *np = netdev_priv(netdev); 1588 struct i40e_pf *pf = np->vsi->back; 1589 struct i40e_hw *hw = &pf->hw; 1590 u8 fec_cfg = 0; 1591 1592 if (hw->device_id != I40E_DEV_ID_25G_SFP28 && 1593 hw->device_id != I40E_DEV_ID_25G_B && 1594 hw->device_id != I40E_DEV_ID_KX_X722) 1595 return -EPERM; 1596 1597 if (hw->mac.type == I40E_MAC_X722 && 1598 !test_bit(I40E_HW_CAP_X722_FEC_REQUEST, hw->caps)) { 1599 netdev_err(netdev, "Setting FEC encoding not supported by firmware. Please update the NVM image.\n"); 1600 return -EOPNOTSUPP; 1601 } 1602 1603 switch (fecparam->fec) { 1604 case ETHTOOL_FEC_AUTO: 1605 fec_cfg = I40E_AQ_SET_FEC_AUTO; 1606 break; 1607 case ETHTOOL_FEC_RS: 1608 fec_cfg = (I40E_AQ_SET_FEC_REQUEST_RS | 1609 I40E_AQ_SET_FEC_ABILITY_RS); 1610 break; 1611 case ETHTOOL_FEC_BASER: 1612 fec_cfg = (I40E_AQ_SET_FEC_REQUEST_KR | 1613 I40E_AQ_SET_FEC_ABILITY_KR); 1614 break; 1615 case ETHTOOL_FEC_OFF: 1616 case ETHTOOL_FEC_NONE: 1617 fec_cfg = 0; 1618 break; 1619 default: 1620 dev_warn(&pf->pdev->dev, "Unsupported FEC mode: %d", 1621 fecparam->fec); 1622 return -EINVAL; 1623 } 1624 1625 return i40e_set_fec_cfg(netdev, fec_cfg); 1626} 1627 1628static int i40e_nway_reset(struct net_device *netdev) 1629{ 1630 /* restart autonegotiation */ 1631 struct i40e_netdev_priv *np = netdev_priv(netdev); 1632 struct i40e_pf *pf = np->vsi->back; 1633 struct i40e_hw *hw = &pf->hw; 1634 bool link_up = hw->phy.link_info.link_info & I40E_AQ_LINK_UP; 1635 int ret = 0; 1636 1637 ret = i40e_aq_set_link_restart_an(hw, link_up, NULL); 1638 if (ret) { 1639 netdev_info(netdev, "link restart failed, err %pe aq_err %s\n", 1640 ERR_PTR(ret), 1641 i40e_aq_str(hw, hw->aq.asq_last_status)); 1642 return -EIO; 1643 } 1644 1645 return 0; 1646} 1647 1648/** 1649 * i40e_get_pauseparam - Get Flow Control status 1650 * @netdev: netdevice structure 1651 * @pause: buffer to return pause parameters 1652 * 1653 * Return tx/rx-pause status 1654 **/ 1655static void i40e_get_pauseparam(struct net_device *netdev, 1656 struct ethtool_pauseparam *pause) 1657{ 1658 struct i40e_netdev_priv *np = netdev_priv(netdev); 1659 struct i40e_pf *pf = np->vsi->back; 1660 struct i40e_hw *hw = &pf->hw; 1661 struct i40e_link_status *hw_link_info = &hw->phy.link_info; 1662 struct i40e_dcbx_config *dcbx_cfg = &hw->local_dcbx_config; 1663 1664 pause->autoneg = 1665 ((hw_link_info->an_info & I40E_AQ_AN_COMPLETED) ? 1666 AUTONEG_ENABLE : AUTONEG_DISABLE); 1667 1668 /* PFC enabled so report LFC as off */ 1669 if (dcbx_cfg->pfc.pfcenable) { 1670 pause->rx_pause = 0; 1671 pause->tx_pause = 0; 1672 return; 1673 } 1674 1675 if (hw->fc.current_mode == I40E_FC_RX_PAUSE) { 1676 pause->rx_pause = 1; 1677 } else if (hw->fc.current_mode == I40E_FC_TX_PAUSE) { 1678 pause->tx_pause = 1; 1679 } else if (hw->fc.current_mode == I40E_FC_FULL) { 1680 pause->rx_pause = 1; 1681 pause->tx_pause = 1; 1682 } 1683} 1684 1685/** 1686 * i40e_set_pauseparam - Set Flow Control parameter 1687 * @netdev: network interface device structure 1688 * @pause: return tx/rx flow control status 1689 **/ 1690static int i40e_set_pauseparam(struct net_device *netdev, 1691 struct ethtool_pauseparam *pause) 1692{ 1693 struct i40e_netdev_priv *np = netdev_priv(netdev); 1694 struct i40e_pf *pf = np->vsi->back; 1695 struct i40e_vsi *vsi = np->vsi; 1696 struct i40e_hw *hw = &pf->hw; 1697 struct i40e_link_status *hw_link_info = &hw->phy.link_info; 1698 struct i40e_dcbx_config *dcbx_cfg = &hw->local_dcbx_config; 1699 bool link_up = hw_link_info->link_info & I40E_AQ_LINK_UP; 1700 u8 aq_failures; 1701 int err = 0; 1702 int status; 1703 u32 is_an; 1704 1705 /* Changing the port's flow control is not supported if this isn't the 1706 * port's controlling PF 1707 */ 1708 if (hw->partition_id != 1) { 1709 i40e_partition_setting_complaint(pf); 1710 return -EOPNOTSUPP; 1711 } 1712 1713 if (vsi != pf->vsi[pf->lan_vsi]) 1714 return -EOPNOTSUPP; 1715 1716 is_an = hw_link_info->an_info & I40E_AQ_AN_COMPLETED; 1717 if (pause->autoneg != is_an) { 1718 netdev_info(netdev, "To change autoneg please use: ethtool -s <dev> autoneg <on|off>\n"); 1719 return -EOPNOTSUPP; 1720 } 1721 1722 /* If we have link and don't have autoneg */ 1723 if (!test_bit(__I40E_DOWN, pf->state) && !is_an) { 1724 /* Send message that it might not necessarily work*/ 1725 netdev_info(netdev, "Autoneg did not complete so changing settings may not result in an actual change.\n"); 1726 } 1727 1728 if (dcbx_cfg->pfc.pfcenable) { 1729 netdev_info(netdev, 1730 "Priority flow control enabled. Cannot set link flow control.\n"); 1731 return -EOPNOTSUPP; 1732 } 1733 1734 if (pause->rx_pause && pause->tx_pause) 1735 hw->fc.requested_mode = I40E_FC_FULL; 1736 else if (pause->rx_pause && !pause->tx_pause) 1737 hw->fc.requested_mode = I40E_FC_RX_PAUSE; 1738 else if (!pause->rx_pause && pause->tx_pause) 1739 hw->fc.requested_mode = I40E_FC_TX_PAUSE; 1740 else if (!pause->rx_pause && !pause->tx_pause) 1741 hw->fc.requested_mode = I40E_FC_NONE; 1742 else 1743 return -EINVAL; 1744 1745 /* Tell the OS link is going down, the link will go back up when fw 1746 * says it is ready asynchronously 1747 */ 1748 i40e_print_link_message(vsi, false); 1749 netif_carrier_off(netdev); 1750 netif_tx_stop_all_queues(netdev); 1751 1752 /* Set the fc mode and only restart an if link is up*/ 1753 status = i40e_set_fc(hw, &aq_failures, link_up); 1754 1755 if (aq_failures & I40E_SET_FC_AQ_FAIL_GET) { 1756 netdev_info(netdev, "Set fc failed on the get_phy_capabilities call with err %pe aq_err %s\n", 1757 ERR_PTR(status), 1758 i40e_aq_str(hw, hw->aq.asq_last_status)); 1759 err = -EAGAIN; 1760 } 1761 if (aq_failures & I40E_SET_FC_AQ_FAIL_SET) { 1762 netdev_info(netdev, "Set fc failed on the set_phy_config call with err %pe aq_err %s\n", 1763 ERR_PTR(status), 1764 i40e_aq_str(hw, hw->aq.asq_last_status)); 1765 err = -EAGAIN; 1766 } 1767 if (aq_failures & I40E_SET_FC_AQ_FAIL_UPDATE) { 1768 netdev_info(netdev, "Set fc failed on the get_link_info call with err %pe aq_err %s\n", 1769 ERR_PTR(status), 1770 i40e_aq_str(hw, hw->aq.asq_last_status)); 1771 err = -EAGAIN; 1772 } 1773 1774 if (!test_bit(__I40E_DOWN, pf->state) && is_an) { 1775 /* Give it a little more time to try to come back */ 1776 msleep(75); 1777 if (!test_bit(__I40E_DOWN, pf->state)) 1778 return i40e_nway_reset(netdev); 1779 } 1780 1781 return err; 1782} 1783 1784static u32 i40e_get_msglevel(struct net_device *netdev) 1785{ 1786 struct i40e_netdev_priv *np = netdev_priv(netdev); 1787 struct i40e_pf *pf = np->vsi->back; 1788 u32 debug_mask = pf->hw.debug_mask; 1789 1790 if (debug_mask) 1791 netdev_info(netdev, "i40e debug_mask: 0x%08X\n", debug_mask); 1792 1793 return pf->msg_enable; 1794} 1795 1796static void i40e_set_msglevel(struct net_device *netdev, u32 data) 1797{ 1798 struct i40e_netdev_priv *np = netdev_priv(netdev); 1799 struct i40e_pf *pf = np->vsi->back; 1800 1801 if (I40E_DEBUG_USER & data) 1802 pf->hw.debug_mask = data; 1803 else 1804 pf->msg_enable = data; 1805} 1806 1807static int i40e_get_regs_len(struct net_device *netdev) 1808{ 1809 int reg_count = 0; 1810 int i; 1811 1812 for (i = 0; i40e_reg_list[i].offset != 0; i++) 1813 reg_count += i40e_reg_list[i].elements; 1814 1815 return reg_count * sizeof(u32); 1816} 1817 1818static void i40e_get_regs(struct net_device *netdev, struct ethtool_regs *regs, 1819 void *p) 1820{ 1821 struct i40e_netdev_priv *np = netdev_priv(netdev); 1822 struct i40e_pf *pf = np->vsi->back; 1823 struct i40e_hw *hw = &pf->hw; 1824 u32 *reg_buf = p; 1825 unsigned int i, j, ri; 1826 u32 reg; 1827 1828 /* Tell ethtool which driver-version-specific regs output we have. 1829 * 1830 * At some point, if we have ethtool doing special formatting of 1831 * this data, it will rely on this version number to know how to 1832 * interpret things. Hence, this needs to be updated if/when the 1833 * diags register table is changed. 1834 */ 1835 regs->version = 1; 1836 1837 /* loop through the diags reg table for what to print */ 1838 ri = 0; 1839 for (i = 0; i40e_reg_list[i].offset != 0; i++) { 1840 for (j = 0; j < i40e_reg_list[i].elements; j++) { 1841 reg = i40e_reg_list[i].offset 1842 + (j * i40e_reg_list[i].stride); 1843 reg_buf[ri++] = rd32(hw, reg); 1844 } 1845 } 1846 1847} 1848 1849static int i40e_get_eeprom(struct net_device *netdev, 1850 struct ethtool_eeprom *eeprom, u8 *bytes) 1851{ 1852 struct i40e_netdev_priv *np = netdev_priv(netdev); 1853 struct i40e_hw *hw = &np->vsi->back->hw; 1854 struct i40e_pf *pf = np->vsi->back; 1855 int ret_val = 0, len, offset; 1856 u8 *eeprom_buff; 1857 u16 i, sectors; 1858 bool last; 1859 u32 magic; 1860 1861#define I40E_NVM_SECTOR_SIZE 4096 1862 if (eeprom->len == 0) 1863 return -EINVAL; 1864 1865 /* check for NVMUpdate access method */ 1866 magic = hw->vendor_id | (hw->device_id << 16); 1867 if (eeprom->magic && eeprom->magic != magic) { 1868 struct i40e_nvm_access *cmd = (struct i40e_nvm_access *)eeprom; 1869 int errno = 0; 1870 1871 /* make sure it is the right magic for NVMUpdate */ 1872 if ((eeprom->magic >> 16) != hw->device_id) 1873 errno = -EINVAL; 1874 else if (test_bit(__I40E_RESET_RECOVERY_PENDING, pf->state) || 1875 test_bit(__I40E_RESET_INTR_RECEIVED, pf->state)) 1876 errno = -EBUSY; 1877 else 1878 ret_val = i40e_nvmupd_command(hw, cmd, bytes, &errno); 1879 1880 if ((errno || ret_val) && (hw->debug_mask & I40E_DEBUG_NVM)) 1881 dev_info(&pf->pdev->dev, 1882 "NVMUpdate read failed err=%d status=0x%x errno=%d module=%d offset=0x%x size=%d\n", 1883 ret_val, hw->aq.asq_last_status, errno, 1884 (u8)(cmd->config & I40E_NVM_MOD_PNT_MASK), 1885 cmd->offset, cmd->data_size); 1886 1887 return errno; 1888 } 1889 1890 /* normal ethtool get_eeprom support */ 1891 eeprom->magic = hw->vendor_id | (hw->device_id << 16); 1892 1893 eeprom_buff = kzalloc(eeprom->len, GFP_KERNEL); 1894 if (!eeprom_buff) 1895 return -ENOMEM; 1896 1897 ret_val = i40e_acquire_nvm(hw, I40E_RESOURCE_READ); 1898 if (ret_val) { 1899 dev_info(&pf->pdev->dev, 1900 "Failed Acquiring NVM resource for read err=%d status=0x%x\n", 1901 ret_val, hw->aq.asq_last_status); 1902 goto free_buff; 1903 } 1904 1905 sectors = eeprom->len / I40E_NVM_SECTOR_SIZE; 1906 sectors += (eeprom->len % I40E_NVM_SECTOR_SIZE) ? 1 : 0; 1907 len = I40E_NVM_SECTOR_SIZE; 1908 last = false; 1909 for (i = 0; i < sectors; i++) { 1910 if (i == (sectors - 1)) { 1911 len = eeprom->len - (I40E_NVM_SECTOR_SIZE * i); 1912 last = true; 1913 } 1914 offset = eeprom->offset + (I40E_NVM_SECTOR_SIZE * i); 1915 ret_val = i40e_aq_read_nvm(hw, 0x0, offset, len, 1916 (u8 *)eeprom_buff + (I40E_NVM_SECTOR_SIZE * i), 1917 last, NULL); 1918 if (ret_val && hw->aq.asq_last_status == I40E_AQ_RC_EPERM) { 1919 dev_info(&pf->pdev->dev, 1920 "read NVM failed, invalid offset 0x%x\n", 1921 offset); 1922 break; 1923 } else if (ret_val && 1924 hw->aq.asq_last_status == I40E_AQ_RC_EACCES) { 1925 dev_info(&pf->pdev->dev, 1926 "read NVM failed, access, offset 0x%x\n", 1927 offset); 1928 break; 1929 } else if (ret_val) { 1930 dev_info(&pf->pdev->dev, 1931 "read NVM failed offset %d err=%d status=0x%x\n", 1932 offset, ret_val, hw->aq.asq_last_status); 1933 break; 1934 } 1935 } 1936 1937 i40e_release_nvm(hw); 1938 memcpy(bytes, (u8 *)eeprom_buff, eeprom->len); 1939free_buff: 1940 kfree(eeprom_buff); 1941 return ret_val; 1942} 1943 1944static int i40e_get_eeprom_len(struct net_device *netdev) 1945{ 1946 struct i40e_netdev_priv *np = netdev_priv(netdev); 1947 struct i40e_hw *hw = &np->vsi->back->hw; 1948 u32 val; 1949 1950#define X722_EEPROM_SCOPE_LIMIT 0x5B9FFF 1951 if (hw->mac.type == I40E_MAC_X722) { 1952 val = X722_EEPROM_SCOPE_LIMIT + 1; 1953 return val; 1954 } 1955 val = FIELD_GET(I40E_GLPCI_LBARCTRL_FL_SIZE_MASK, 1956 rd32(hw, I40E_GLPCI_LBARCTRL)); 1957 /* register returns value in power of 2, 64Kbyte chunks. */ 1958 val = (64 * 1024) * BIT(val); 1959 return val; 1960} 1961 1962static int i40e_set_eeprom(struct net_device *netdev, 1963 struct ethtool_eeprom *eeprom, u8 *bytes) 1964{ 1965 struct i40e_netdev_priv *np = netdev_priv(netdev); 1966 struct i40e_hw *hw = &np->vsi->back->hw; 1967 struct i40e_pf *pf = np->vsi->back; 1968 struct i40e_nvm_access *cmd = (struct i40e_nvm_access *)eeprom; 1969 int ret_val = 0; 1970 int errno = 0; 1971 u32 magic; 1972 1973 /* normal ethtool set_eeprom is not supported */ 1974 magic = hw->vendor_id | (hw->device_id << 16); 1975 if (eeprom->magic == magic) 1976 errno = -EOPNOTSUPP; 1977 /* check for NVMUpdate access method */ 1978 else if (!eeprom->magic || (eeprom->magic >> 16) != hw->device_id) 1979 errno = -EINVAL; 1980 else if (test_bit(__I40E_RESET_RECOVERY_PENDING, pf->state) || 1981 test_bit(__I40E_RESET_INTR_RECEIVED, pf->state)) 1982 errno = -EBUSY; 1983 else 1984 ret_val = i40e_nvmupd_command(hw, cmd, bytes, &errno); 1985 1986 if ((errno || ret_val) && (hw->debug_mask & I40E_DEBUG_NVM)) 1987 dev_info(&pf->pdev->dev, 1988 "NVMUpdate write failed err=%d status=0x%x errno=%d module=%d offset=0x%x size=%d\n", 1989 ret_val, hw->aq.asq_last_status, errno, 1990 (u8)(cmd->config & I40E_NVM_MOD_PNT_MASK), 1991 cmd->offset, cmd->data_size); 1992 1993 return errno; 1994} 1995 1996static void i40e_get_drvinfo(struct net_device *netdev, 1997 struct ethtool_drvinfo *drvinfo) 1998{ 1999 struct i40e_netdev_priv *np = netdev_priv(netdev); 2000 struct i40e_vsi *vsi = np->vsi; 2001 struct i40e_pf *pf = vsi->back; 2002 2003 strscpy(drvinfo->driver, i40e_driver_name, sizeof(drvinfo->driver)); 2004 i40e_nvm_version_str(&pf->hw, drvinfo->fw_version, 2005 sizeof(drvinfo->fw_version)); 2006 strscpy(drvinfo->bus_info, pci_name(pf->pdev), 2007 sizeof(drvinfo->bus_info)); 2008 drvinfo->n_priv_flags = I40E_PRIV_FLAGS_STR_LEN; 2009 if (pf->hw.pf_id == 0) 2010 drvinfo->n_priv_flags += I40E_GL_PRIV_FLAGS_STR_LEN; 2011} 2012 2013static u32 i40e_get_max_num_descriptors(struct i40e_pf *pf) 2014{ 2015 struct i40e_hw *hw = &pf->hw; 2016 2017 switch (hw->mac.type) { 2018 case I40E_MAC_XL710: 2019 return I40E_MAX_NUM_DESCRIPTORS_XL710; 2020 default: 2021 return I40E_MAX_NUM_DESCRIPTORS; 2022 } 2023} 2024 2025static void i40e_get_ringparam(struct net_device *netdev, 2026 struct ethtool_ringparam *ring, 2027 struct kernel_ethtool_ringparam *kernel_ring, 2028 struct netlink_ext_ack *extack) 2029{ 2030 struct i40e_netdev_priv *np = netdev_priv(netdev); 2031 struct i40e_pf *pf = np->vsi->back; 2032 struct i40e_vsi *vsi = pf->vsi[pf->lan_vsi]; 2033 2034 ring->rx_max_pending = i40e_get_max_num_descriptors(pf); 2035 ring->tx_max_pending = i40e_get_max_num_descriptors(pf); 2036 ring->rx_mini_max_pending = 0; 2037 ring->rx_jumbo_max_pending = 0; 2038 ring->rx_pending = vsi->rx_rings[0]->count; 2039 ring->tx_pending = vsi->tx_rings[0]->count; 2040 ring->rx_mini_pending = 0; 2041 ring->rx_jumbo_pending = 0; 2042} 2043 2044static bool i40e_active_tx_ring_index(struct i40e_vsi *vsi, u16 index) 2045{ 2046 if (i40e_enabled_xdp_vsi(vsi)) { 2047 return index < vsi->num_queue_pairs || 2048 (index >= vsi->alloc_queue_pairs && 2049 index < vsi->alloc_queue_pairs + vsi->num_queue_pairs); 2050 } 2051 2052 return index < vsi->num_queue_pairs; 2053} 2054 2055static int i40e_set_ringparam(struct net_device *netdev, 2056 struct ethtool_ringparam *ring, 2057 struct kernel_ethtool_ringparam *kernel_ring, 2058 struct netlink_ext_ack *extack) 2059{ 2060 u32 new_rx_count, new_tx_count, max_num_descriptors; 2061 struct i40e_ring *tx_rings = NULL, *rx_rings = NULL; 2062 struct i40e_netdev_priv *np = netdev_priv(netdev); 2063 struct i40e_hw *hw = &np->vsi->back->hw; 2064 struct i40e_vsi *vsi = np->vsi; 2065 struct i40e_pf *pf = vsi->back; 2066 u16 tx_alloc_queue_pairs; 2067 int timeout = 50; 2068 int i, err = 0; 2069 2070 if ((ring->rx_mini_pending) || (ring->rx_jumbo_pending)) 2071 return -EINVAL; 2072 2073 max_num_descriptors = i40e_get_max_num_descriptors(pf); 2074 if (ring->tx_pending > max_num_descriptors || 2075 ring->tx_pending < I40E_MIN_NUM_DESCRIPTORS || 2076 ring->rx_pending > max_num_descriptors || 2077 ring->rx_pending < I40E_MIN_NUM_DESCRIPTORS) { 2078 netdev_info(netdev, 2079 "Descriptors requested (Tx: %d / Rx: %d) out of range [%d-%d]\n", 2080 ring->tx_pending, ring->rx_pending, 2081 I40E_MIN_NUM_DESCRIPTORS, max_num_descriptors); 2082 return -EINVAL; 2083 } 2084 2085 new_tx_count = ALIGN(ring->tx_pending, I40E_REQ_DESCRIPTOR_MULTIPLE); 2086 new_rx_count = ALIGN(ring->rx_pending, I40E_REQ_DESCRIPTOR_MULTIPLE); 2087 2088 /* if nothing to do return success */ 2089 if ((new_tx_count == vsi->tx_rings[0]->count) && 2090 (new_rx_count == vsi->rx_rings[0]->count)) 2091 return 0; 2092 2093 /* If there is a AF_XDP page pool attached to any of Rx rings, 2094 * disallow changing the number of descriptors -- regardless 2095 * if the netdev is running or not. 2096 */ 2097 if (i40e_xsk_any_rx_ring_enabled(vsi)) 2098 return -EBUSY; 2099 2100 while (test_and_set_bit(__I40E_CONFIG_BUSY, pf->state)) { 2101 timeout--; 2102 if (!timeout) 2103 return -EBUSY; 2104 usleep_range(1000, 2000); 2105 } 2106 2107 if (!netif_running(vsi->netdev)) { 2108 /* simple case - set for the next time the netdev is started */ 2109 for (i = 0; i < vsi->num_queue_pairs; i++) { 2110 vsi->tx_rings[i]->count = new_tx_count; 2111 vsi->rx_rings[i]->count = new_rx_count; 2112 if (i40e_enabled_xdp_vsi(vsi)) 2113 vsi->xdp_rings[i]->count = new_tx_count; 2114 } 2115 vsi->num_tx_desc = new_tx_count; 2116 vsi->num_rx_desc = new_rx_count; 2117 goto done; 2118 } 2119 2120 /* We can't just free everything and then setup again, 2121 * because the ISRs in MSI-X mode get passed pointers 2122 * to the Tx and Rx ring structs. 2123 */ 2124 2125 /* alloc updated Tx and XDP Tx resources */ 2126 tx_alloc_queue_pairs = vsi->alloc_queue_pairs * 2127 (i40e_enabled_xdp_vsi(vsi) ? 2 : 1); 2128 if (new_tx_count != vsi->tx_rings[0]->count) { 2129 netdev_info(netdev, 2130 "Changing Tx descriptor count from %d to %d.\n", 2131 vsi->tx_rings[0]->count, new_tx_count); 2132 tx_rings = kcalloc(tx_alloc_queue_pairs, 2133 sizeof(struct i40e_ring), GFP_KERNEL); 2134 if (!tx_rings) { 2135 err = -ENOMEM; 2136 goto done; 2137 } 2138 2139 for (i = 0; i < tx_alloc_queue_pairs; i++) { 2140 if (!i40e_active_tx_ring_index(vsi, i)) 2141 continue; 2142 2143 tx_rings[i] = *vsi->tx_rings[i]; 2144 tx_rings[i].count = new_tx_count; 2145 /* the desc and bi pointers will be reallocated in the 2146 * setup call 2147 */ 2148 tx_rings[i].desc = NULL; 2149 tx_rings[i].rx_bi = NULL; 2150 err = i40e_setup_tx_descriptors(&tx_rings[i]); 2151 if (err) { 2152 while (i) { 2153 i--; 2154 if (!i40e_active_tx_ring_index(vsi, i)) 2155 continue; 2156 i40e_free_tx_resources(&tx_rings[i]); 2157 } 2158 kfree(tx_rings); 2159 tx_rings = NULL; 2160 2161 goto done; 2162 } 2163 } 2164 } 2165 2166 /* alloc updated Rx resources */ 2167 if (new_rx_count != vsi->rx_rings[0]->count) { 2168 netdev_info(netdev, 2169 "Changing Rx descriptor count from %d to %d\n", 2170 vsi->rx_rings[0]->count, new_rx_count); 2171 rx_rings = kcalloc(vsi->alloc_queue_pairs, 2172 sizeof(struct i40e_ring), GFP_KERNEL); 2173 if (!rx_rings) { 2174 err = -ENOMEM; 2175 goto free_tx; 2176 } 2177 2178 for (i = 0; i < vsi->num_queue_pairs; i++) { 2179 u16 unused; 2180 2181 /* clone ring and setup updated count */ 2182 rx_rings[i] = *vsi->rx_rings[i]; 2183 rx_rings[i].count = new_rx_count; 2184 /* the desc and bi pointers will be reallocated in the 2185 * setup call 2186 */ 2187 rx_rings[i].desc = NULL; 2188 rx_rings[i].rx_bi = NULL; 2189 /* Clear cloned XDP RX-queue info before setup call */ 2190 memset(&rx_rings[i].xdp_rxq, 0, sizeof(rx_rings[i].xdp_rxq)); 2191 /* this is to allow wr32 to have something to write to 2192 * during early allocation of Rx buffers 2193 */ 2194 rx_rings[i].tail = hw->hw_addr + I40E_PRTGEN_STATUS; 2195 err = i40e_setup_rx_descriptors(&rx_rings[i]); 2196 if (err) 2197 goto rx_unwind; 2198 2199 /* now allocate the Rx buffers to make sure the OS 2200 * has enough memory, any failure here means abort 2201 */ 2202 unused = I40E_DESC_UNUSED(&rx_rings[i]); 2203 err = i40e_alloc_rx_buffers(&rx_rings[i], unused); 2204rx_unwind: 2205 if (err) { 2206 do { 2207 i40e_free_rx_resources(&rx_rings[i]); 2208 } while (i--); 2209 kfree(rx_rings); 2210 rx_rings = NULL; 2211 2212 goto free_tx; 2213 } 2214 } 2215 } 2216 2217 /* Bring interface down, copy in the new ring info, 2218 * then restore the interface 2219 */ 2220 i40e_down(vsi); 2221 2222 if (tx_rings) { 2223 for (i = 0; i < tx_alloc_queue_pairs; i++) { 2224 if (i40e_active_tx_ring_index(vsi, i)) { 2225 i40e_free_tx_resources(vsi->tx_rings[i]); 2226 *vsi->tx_rings[i] = tx_rings[i]; 2227 } 2228 } 2229 kfree(tx_rings); 2230 tx_rings = NULL; 2231 } 2232 2233 if (rx_rings) { 2234 for (i = 0; i < vsi->num_queue_pairs; i++) { 2235 i40e_free_rx_resources(vsi->rx_rings[i]); 2236 /* get the real tail offset */ 2237 rx_rings[i].tail = vsi->rx_rings[i]->tail; 2238 /* this is to fake out the allocation routine 2239 * into thinking it has to realloc everything 2240 * but the recycling logic will let us re-use 2241 * the buffers allocated above 2242 */ 2243 rx_rings[i].next_to_use = 0; 2244 rx_rings[i].next_to_clean = 0; 2245 rx_rings[i].next_to_alloc = 0; 2246 /* do a struct copy */ 2247 *vsi->rx_rings[i] = rx_rings[i]; 2248 } 2249 kfree(rx_rings); 2250 rx_rings = NULL; 2251 } 2252 2253 vsi->num_tx_desc = new_tx_count; 2254 vsi->num_rx_desc = new_rx_count; 2255 i40e_up(vsi); 2256 2257free_tx: 2258 /* error cleanup if the Rx allocations failed after getting Tx */ 2259 if (tx_rings) { 2260 for (i = 0; i < tx_alloc_queue_pairs; i++) { 2261 if (i40e_active_tx_ring_index(vsi, i)) 2262 i40e_free_tx_resources(vsi->tx_rings[i]); 2263 } 2264 kfree(tx_rings); 2265 tx_rings = NULL; 2266 } 2267 2268done: 2269 clear_bit(__I40E_CONFIG_BUSY, pf->state); 2270 2271 return err; 2272} 2273 2274/** 2275 * i40e_get_stats_count - return the stats count for a device 2276 * @netdev: the netdev to return the count for 2277 * 2278 * Returns the total number of statistics for this netdev. Note that even 2279 * though this is a function, it is required that the count for a specific 2280 * netdev must never change. Basing the count on static values such as the 2281 * maximum number of queues or the device type is ok. However, the API for 2282 * obtaining stats is *not* safe against changes based on non-static 2283 * values such as the *current* number of queues, or runtime flags. 2284 * 2285 * If a statistic is not always enabled, return it as part of the count 2286 * anyways, always return its string, and report its value as zero. 2287 **/ 2288static int i40e_get_stats_count(struct net_device *netdev) 2289{ 2290 struct i40e_netdev_priv *np = netdev_priv(netdev); 2291 struct i40e_vsi *vsi = np->vsi; 2292 struct i40e_pf *pf = vsi->back; 2293 int stats_len; 2294 2295 if (vsi == pf->vsi[pf->lan_vsi] && pf->hw.partition_id == 1) 2296 stats_len = I40E_PF_STATS_LEN; 2297 else 2298 stats_len = I40E_VSI_STATS_LEN; 2299 2300 /* The number of stats reported for a given net_device must remain 2301 * constant throughout the life of that device. 2302 * 2303 * This is because the API for obtaining the size, strings, and stats 2304 * is spread out over three separate ethtool ioctls. There is no safe 2305 * way to lock the number of stats across these calls, so we must 2306 * assume that they will never change. 2307 * 2308 * Due to this, we report the maximum number of queues, even if not 2309 * every queue is currently configured. Since we always allocate 2310 * queues in pairs, we'll just use netdev->num_tx_queues * 2. This 2311 * works because the num_tx_queues is set at device creation and never 2312 * changes. 2313 */ 2314 stats_len += I40E_QUEUE_STATS_LEN * 2 * netdev->num_tx_queues; 2315 2316 return stats_len; 2317} 2318 2319static int i40e_get_sset_count(struct net_device *netdev, int sset) 2320{ 2321 struct i40e_netdev_priv *np = netdev_priv(netdev); 2322 struct i40e_vsi *vsi = np->vsi; 2323 struct i40e_pf *pf = vsi->back; 2324 2325 switch (sset) { 2326 case ETH_SS_TEST: 2327 return I40E_TEST_LEN; 2328 case ETH_SS_STATS: 2329 return i40e_get_stats_count(netdev); 2330 case ETH_SS_PRIV_FLAGS: 2331 return I40E_PRIV_FLAGS_STR_LEN + 2332 (pf->hw.pf_id == 0 ? I40E_GL_PRIV_FLAGS_STR_LEN : 0); 2333 default: 2334 return -EOPNOTSUPP; 2335 } 2336} 2337 2338/** 2339 * i40e_get_veb_tc_stats - copy VEB TC statistics to formatted structure 2340 * @tc: the TC statistics in VEB structure (veb->tc_stats) 2341 * @i: the index of traffic class in (veb->tc_stats) structure to copy 2342 * 2343 * Copy VEB TC statistics from structure of arrays (veb->tc_stats) to 2344 * one dimensional structure i40e_cp_veb_tc_stats. 2345 * Produce formatted i40e_cp_veb_tc_stats structure of the VEB TC 2346 * statistics for the given TC. 2347 **/ 2348static struct i40e_cp_veb_tc_stats 2349i40e_get_veb_tc_stats(struct i40e_veb_tc_stats *tc, unsigned int i) 2350{ 2351 struct i40e_cp_veb_tc_stats veb_tc = { 2352 .tc_rx_packets = tc->tc_rx_packets[i], 2353 .tc_rx_bytes = tc->tc_rx_bytes[i], 2354 .tc_tx_packets = tc->tc_tx_packets[i], 2355 .tc_tx_bytes = tc->tc_tx_bytes[i], 2356 }; 2357 2358 return veb_tc; 2359} 2360 2361/** 2362 * i40e_get_pfc_stats - copy HW PFC statistics to formatted structure 2363 * @pf: the PF device structure 2364 * @i: the priority value to copy 2365 * 2366 * The PFC stats are found as arrays in pf->stats, which is not easy to pass 2367 * into i40e_add_ethtool_stats. Produce a formatted i40e_pfc_stats structure 2368 * of the PFC stats for the given priority. 2369 **/ 2370static inline struct i40e_pfc_stats 2371i40e_get_pfc_stats(struct i40e_pf *pf, unsigned int i) 2372{ 2373#define I40E_GET_PFC_STAT(stat, priority) \ 2374 .stat = pf->stats.stat[priority] 2375 2376 struct i40e_pfc_stats pfc = { 2377 I40E_GET_PFC_STAT(priority_xon_rx, i), 2378 I40E_GET_PFC_STAT(priority_xoff_rx, i), 2379 I40E_GET_PFC_STAT(priority_xon_tx, i), 2380 I40E_GET_PFC_STAT(priority_xoff_tx, i), 2381 I40E_GET_PFC_STAT(priority_xon_2_xoff, i), 2382 }; 2383 return pfc; 2384} 2385 2386/** 2387 * i40e_get_ethtool_stats - copy stat values into supplied buffer 2388 * @netdev: the netdev to collect stats for 2389 * @stats: ethtool stats command structure 2390 * @data: ethtool supplied buffer 2391 * 2392 * Copy the stats values for this netdev into the buffer. Expects data to be 2393 * pre-allocated to the size returned by i40e_get_stats_count.. Note that all 2394 * statistics must be copied in a static order, and the count must not change 2395 * for a given netdev. See i40e_get_stats_count for more details. 2396 * 2397 * If a statistic is not currently valid (such as a disabled queue), this 2398 * function reports its value as zero. 2399 **/ 2400static void i40e_get_ethtool_stats(struct net_device *netdev, 2401 struct ethtool_stats *stats, u64 *data) 2402{ 2403 struct i40e_netdev_priv *np = netdev_priv(netdev); 2404 struct i40e_vsi *vsi = np->vsi; 2405 struct i40e_pf *pf = vsi->back; 2406 struct i40e_veb *veb = NULL; 2407 unsigned int i; 2408 bool veb_stats; 2409 u64 *p = data; 2410 2411 i40e_update_stats(vsi); 2412 2413 i40e_add_ethtool_stats(&data, i40e_get_vsi_stats_struct(vsi), 2414 i40e_gstrings_net_stats); 2415 2416 i40e_add_ethtool_stats(&data, vsi, i40e_gstrings_misc_stats); 2417 2418 rcu_read_lock(); 2419 for (i = 0; i < netdev->num_tx_queues; i++) { 2420 i40e_add_queue_stats(&data, READ_ONCE(vsi->tx_rings[i])); 2421 i40e_add_queue_stats(&data, READ_ONCE(vsi->rx_rings[i])); 2422 } 2423 rcu_read_unlock(); 2424 2425 if (vsi != pf->vsi[pf->lan_vsi] || pf->hw.partition_id != 1) 2426 goto check_data_pointer; 2427 2428 veb_stats = ((pf->lan_veb != I40E_NO_VEB) && 2429 (pf->lan_veb < I40E_MAX_VEB) && 2430 test_bit(I40E_FLAG_VEB_STATS_ENA, pf->flags)); 2431 2432 if (veb_stats) { 2433 veb = pf->veb[pf->lan_veb]; 2434 i40e_update_veb_stats(veb); 2435 } 2436 2437 /* If veb stats aren't enabled, pass NULL instead of the veb so that 2438 * we initialize stats to zero and update the data pointer 2439 * intelligently 2440 */ 2441 i40e_add_ethtool_stats(&data, veb_stats ? veb : NULL, 2442 i40e_gstrings_veb_stats); 2443 2444 for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++) 2445 if (veb_stats) { 2446 struct i40e_cp_veb_tc_stats veb_tc = 2447 i40e_get_veb_tc_stats(&veb->tc_stats, i); 2448 2449 i40e_add_ethtool_stats(&data, &veb_tc, 2450 i40e_gstrings_veb_tc_stats); 2451 } else { 2452 i40e_add_ethtool_stats(&data, NULL, 2453 i40e_gstrings_veb_tc_stats); 2454 } 2455 2456 i40e_add_ethtool_stats(&data, pf, i40e_gstrings_stats); 2457 2458 for (i = 0; i < I40E_MAX_USER_PRIORITY; i++) { 2459 struct i40e_pfc_stats pfc = i40e_get_pfc_stats(pf, i); 2460 2461 i40e_add_ethtool_stats(&data, &pfc, i40e_gstrings_pfc_stats); 2462 } 2463 2464check_data_pointer: 2465 WARN_ONCE(data - p != i40e_get_stats_count(netdev), 2466 "ethtool stats count mismatch!"); 2467} 2468 2469/** 2470 * i40e_get_stat_strings - copy stat strings into supplied buffer 2471 * @netdev: the netdev to collect strings for 2472 * @data: supplied buffer to copy strings into 2473 * 2474 * Copy the strings related to stats for this netdev. Expects data to be 2475 * pre-allocated with the size reported by i40e_get_stats_count. Note that the 2476 * strings must be copied in a static order and the total count must not 2477 * change for a given netdev. See i40e_get_stats_count for more details. 2478 **/ 2479static void i40e_get_stat_strings(struct net_device *netdev, u8 *data) 2480{ 2481 struct i40e_netdev_priv *np = netdev_priv(netdev); 2482 struct i40e_vsi *vsi = np->vsi; 2483 struct i40e_pf *pf = vsi->back; 2484 unsigned int i; 2485 u8 *p = data; 2486 2487 i40e_add_stat_strings(&data, i40e_gstrings_net_stats); 2488 2489 i40e_add_stat_strings(&data, i40e_gstrings_misc_stats); 2490 2491 for (i = 0; i < netdev->num_tx_queues; i++) { 2492 i40e_add_stat_strings(&data, i40e_gstrings_queue_stats, 2493 "tx", i); 2494 i40e_add_stat_strings(&data, i40e_gstrings_queue_stats, 2495 "rx", i); 2496 } 2497 2498 if (vsi != pf->vsi[pf->lan_vsi] || pf->hw.partition_id != 1) 2499 goto check_data_pointer; 2500 2501 i40e_add_stat_strings(&data, i40e_gstrings_veb_stats); 2502 2503 for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++) 2504 i40e_add_stat_strings(&data, i40e_gstrings_veb_tc_stats, i); 2505 2506 i40e_add_stat_strings(&data, i40e_gstrings_stats); 2507 2508 for (i = 0; i < I40E_MAX_USER_PRIORITY; i++) 2509 i40e_add_stat_strings(&data, i40e_gstrings_pfc_stats, i); 2510 2511check_data_pointer: 2512 WARN_ONCE(data - p != i40e_get_stats_count(netdev) * ETH_GSTRING_LEN, 2513 "stat strings count mismatch!"); 2514} 2515 2516static void i40e_get_priv_flag_strings(struct net_device *netdev, u8 *data) 2517{ 2518 struct i40e_netdev_priv *np = netdev_priv(netdev); 2519 struct i40e_vsi *vsi = np->vsi; 2520 struct i40e_pf *pf = vsi->back; 2521 unsigned int i; 2522 u8 *p = data; 2523 2524 for (i = 0; i < I40E_PRIV_FLAGS_STR_LEN; i++) 2525 ethtool_puts(&p, i40e_gstrings_priv_flags[i].flag_string); 2526 if (pf->hw.pf_id != 0) 2527 return; 2528 for (i = 0; i < I40E_GL_PRIV_FLAGS_STR_LEN; i++) 2529 ethtool_puts(&p, i40e_gl_gstrings_priv_flags[i].flag_string); 2530} 2531 2532static void i40e_get_strings(struct net_device *netdev, u32 stringset, 2533 u8 *data) 2534{ 2535 switch (stringset) { 2536 case ETH_SS_TEST: 2537 memcpy(data, i40e_gstrings_test, 2538 I40E_TEST_LEN * ETH_GSTRING_LEN); 2539 break; 2540 case ETH_SS_STATS: 2541 i40e_get_stat_strings(netdev, data); 2542 break; 2543 case ETH_SS_PRIV_FLAGS: 2544 i40e_get_priv_flag_strings(netdev, data); 2545 break; 2546 default: 2547 break; 2548 } 2549} 2550 2551static int i40e_get_ts_info(struct net_device *dev, 2552 struct ethtool_ts_info *info) 2553{ 2554 struct i40e_pf *pf = i40e_netdev_to_pf(dev); 2555 2556 /* only report HW timestamping if PTP is enabled */ 2557 if (!test_bit(I40E_FLAG_PTP_ENA, pf->flags)) 2558 return ethtool_op_get_ts_info(dev, info); 2559 2560 info->so_timestamping = SOF_TIMESTAMPING_TX_SOFTWARE | 2561 SOF_TIMESTAMPING_RX_SOFTWARE | 2562 SOF_TIMESTAMPING_SOFTWARE | 2563 SOF_TIMESTAMPING_TX_HARDWARE | 2564 SOF_TIMESTAMPING_RX_HARDWARE | 2565 SOF_TIMESTAMPING_RAW_HARDWARE; 2566 2567 if (pf->ptp_clock) 2568 info->phc_index = ptp_clock_index(pf->ptp_clock); 2569 else 2570 info->phc_index = -1; 2571 2572 info->tx_types = BIT(HWTSTAMP_TX_OFF) | BIT(HWTSTAMP_TX_ON); 2573 2574 info->rx_filters = BIT(HWTSTAMP_FILTER_NONE) | 2575 BIT(HWTSTAMP_FILTER_PTP_V2_L2_EVENT) | 2576 BIT(HWTSTAMP_FILTER_PTP_V2_L2_SYNC) | 2577 BIT(HWTSTAMP_FILTER_PTP_V2_L2_DELAY_REQ); 2578 2579 if (test_bit(I40E_HW_CAP_PTP_L4, pf->hw.caps)) 2580 info->rx_filters |= BIT(HWTSTAMP_FILTER_PTP_V1_L4_SYNC) | 2581 BIT(HWTSTAMP_FILTER_PTP_V1_L4_DELAY_REQ) | 2582 BIT(HWTSTAMP_FILTER_PTP_V2_EVENT) | 2583 BIT(HWTSTAMP_FILTER_PTP_V2_L4_EVENT) | 2584 BIT(HWTSTAMP_FILTER_PTP_V2_SYNC) | 2585 BIT(HWTSTAMP_FILTER_PTP_V2_L4_SYNC) | 2586 BIT(HWTSTAMP_FILTER_PTP_V2_DELAY_REQ) | 2587 BIT(HWTSTAMP_FILTER_PTP_V2_L4_DELAY_REQ); 2588 2589 return 0; 2590} 2591 2592static u64 i40e_link_test(struct net_device *netdev, u64 *data) 2593{ 2594 struct i40e_netdev_priv *np = netdev_priv(netdev); 2595 struct i40e_pf *pf = np->vsi->back; 2596 bool link_up = false; 2597 int status; 2598 2599 netif_info(pf, hw, netdev, "link test\n"); 2600 status = i40e_get_link_status(&pf->hw, &link_up); 2601 if (status) { 2602 netif_err(pf, drv, netdev, "link query timed out, please retry test\n"); 2603 *data = 1; 2604 return *data; 2605 } 2606 2607 if (link_up) 2608 *data = 0; 2609 else 2610 *data = 1; 2611 2612 return *data; 2613} 2614 2615static u64 i40e_reg_test(struct net_device *netdev, u64 *data) 2616{ 2617 struct i40e_netdev_priv *np = netdev_priv(netdev); 2618 struct i40e_pf *pf = np->vsi->back; 2619 2620 netif_info(pf, hw, netdev, "register test\n"); 2621 *data = i40e_diag_reg_test(&pf->hw); 2622 2623 return *data; 2624} 2625 2626static u64 i40e_eeprom_test(struct net_device *netdev, u64 *data) 2627{ 2628 struct i40e_netdev_priv *np = netdev_priv(netdev); 2629 struct i40e_pf *pf = np->vsi->back; 2630 2631 netif_info(pf, hw, netdev, "eeprom test\n"); 2632 *data = i40e_diag_eeprom_test(&pf->hw); 2633 2634 /* forcebly clear the NVM Update state machine */ 2635 pf->hw.nvmupd_state = I40E_NVMUPD_STATE_INIT; 2636 2637 return *data; 2638} 2639 2640static u64 i40e_intr_test(struct net_device *netdev, u64 *data) 2641{ 2642 struct i40e_netdev_priv *np = netdev_priv(netdev); 2643 struct i40e_pf *pf = np->vsi->back; 2644 u16 swc_old = pf->sw_int_count; 2645 2646 netif_info(pf, hw, netdev, "interrupt test\n"); 2647 wr32(&pf->hw, I40E_PFINT_DYN_CTL0, 2648 (I40E_PFINT_DYN_CTL0_INTENA_MASK | 2649 I40E_PFINT_DYN_CTL0_SWINT_TRIG_MASK | 2650 I40E_PFINT_DYN_CTL0_ITR_INDX_MASK | 2651 I40E_PFINT_DYN_CTL0_SW_ITR_INDX_ENA_MASK | 2652 I40E_PFINT_DYN_CTL0_SW_ITR_INDX_MASK)); 2653 usleep_range(1000, 2000); 2654 *data = (swc_old == pf->sw_int_count); 2655 2656 return *data; 2657} 2658 2659static inline bool i40e_active_vfs(struct i40e_pf *pf) 2660{ 2661 struct i40e_vf *vfs = pf->vf; 2662 int i; 2663 2664 for (i = 0; i < pf->num_alloc_vfs; i++) 2665 if (test_bit(I40E_VF_STATE_ACTIVE, &vfs[i].vf_states)) 2666 return true; 2667 return false; 2668} 2669 2670static inline bool i40e_active_vmdqs(struct i40e_pf *pf) 2671{ 2672 return !!i40e_find_vsi_by_type(pf, I40E_VSI_VMDQ2); 2673} 2674 2675static void i40e_diag_test(struct net_device *netdev, 2676 struct ethtool_test *eth_test, u64 *data) 2677{ 2678 struct i40e_netdev_priv *np = netdev_priv(netdev); 2679 bool if_running = netif_running(netdev); 2680 struct i40e_pf *pf = np->vsi->back; 2681 2682 if (eth_test->flags == ETH_TEST_FL_OFFLINE) { 2683 /* Offline tests */ 2684 netif_info(pf, drv, netdev, "offline testing starting\n"); 2685 2686 set_bit(__I40E_TESTING, pf->state); 2687 2688 if (test_bit(__I40E_RESET_RECOVERY_PENDING, pf->state) || 2689 test_bit(__I40E_RESET_INTR_RECEIVED, pf->state)) { 2690 dev_warn(&pf->pdev->dev, 2691 "Cannot start offline testing when PF is in reset state.\n"); 2692 goto skip_ol_tests; 2693 } 2694 2695 if (i40e_active_vfs(pf) || i40e_active_vmdqs(pf)) { 2696 dev_warn(&pf->pdev->dev, 2697 "Please take active VFs and Netqueues offline and restart the adapter before running NIC diagnostics\n"); 2698 goto skip_ol_tests; 2699 } 2700 2701 /* If the device is online then take it offline */ 2702 if (if_running) 2703 /* indicate we're in test mode */ 2704 i40e_close(netdev); 2705 else 2706 /* This reset does not affect link - if it is 2707 * changed to a type of reset that does affect 2708 * link then the following link test would have 2709 * to be moved to before the reset 2710 */ 2711 i40e_do_reset(pf, BIT(__I40E_PF_RESET_REQUESTED), true); 2712 2713 if (i40e_link_test(netdev, &data[I40E_ETH_TEST_LINK])) 2714 eth_test->flags |= ETH_TEST_FL_FAILED; 2715 2716 if (i40e_eeprom_test(netdev, &data[I40E_ETH_TEST_EEPROM])) 2717 eth_test->flags |= ETH_TEST_FL_FAILED; 2718 2719 if (i40e_intr_test(netdev, &data[I40E_ETH_TEST_INTR])) 2720 eth_test->flags |= ETH_TEST_FL_FAILED; 2721 2722 /* run reg test last, a reset is required after it */ 2723 if (i40e_reg_test(netdev, &data[I40E_ETH_TEST_REG])) 2724 eth_test->flags |= ETH_TEST_FL_FAILED; 2725 2726 clear_bit(__I40E_TESTING, pf->state); 2727 i40e_do_reset(pf, BIT(__I40E_PF_RESET_REQUESTED), true); 2728 2729 if (if_running) 2730 i40e_open(netdev); 2731 } else { 2732 /* Online tests */ 2733 netif_info(pf, drv, netdev, "online testing starting\n"); 2734 2735 if (i40e_link_test(netdev, &data[I40E_ETH_TEST_LINK])) 2736 eth_test->flags |= ETH_TEST_FL_FAILED; 2737 2738 /* Offline only tests, not run in online; pass by default */ 2739 data[I40E_ETH_TEST_REG] = 0; 2740 data[I40E_ETH_TEST_EEPROM] = 0; 2741 data[I40E_ETH_TEST_INTR] = 0; 2742 } 2743 2744 netif_info(pf, drv, netdev, "testing finished\n"); 2745 return; 2746 2747skip_ol_tests: 2748 data[I40E_ETH_TEST_REG] = 1; 2749 data[I40E_ETH_TEST_EEPROM] = 1; 2750 data[I40E_ETH_TEST_INTR] = 1; 2751 data[I40E_ETH_TEST_LINK] = 1; 2752 eth_test->flags |= ETH_TEST_FL_FAILED; 2753 clear_bit(__I40E_TESTING, pf->state); 2754 netif_info(pf, drv, netdev, "testing failed\n"); 2755} 2756 2757static void i40e_get_wol(struct net_device *netdev, 2758 struct ethtool_wolinfo *wol) 2759{ 2760 struct i40e_netdev_priv *np = netdev_priv(netdev); 2761 struct i40e_pf *pf = np->vsi->back; 2762 struct i40e_hw *hw = &pf->hw; 2763 u16 wol_nvm_bits; 2764 2765 /* NVM bit on means WoL disabled for the port */ 2766 i40e_read_nvm_word(hw, I40E_SR_NVM_WAKE_ON_LAN, &wol_nvm_bits); 2767 if ((BIT(hw->port) & wol_nvm_bits) || (hw->partition_id != 1)) { 2768 wol->supported = 0; 2769 wol->wolopts = 0; 2770 } else { 2771 wol->supported = WAKE_MAGIC; 2772 wol->wolopts = (pf->wol_en ? WAKE_MAGIC : 0); 2773 } 2774} 2775 2776/** 2777 * i40e_set_wol - set the WakeOnLAN configuration 2778 * @netdev: the netdev in question 2779 * @wol: the ethtool WoL setting data 2780 **/ 2781static int i40e_set_wol(struct net_device *netdev, struct ethtool_wolinfo *wol) 2782{ 2783 struct i40e_netdev_priv *np = netdev_priv(netdev); 2784 struct i40e_pf *pf = np->vsi->back; 2785 struct i40e_vsi *vsi = np->vsi; 2786 struct i40e_hw *hw = &pf->hw; 2787 u16 wol_nvm_bits; 2788 2789 /* WoL not supported if this isn't the controlling PF on the port */ 2790 if (hw->partition_id != 1) { 2791 i40e_partition_setting_complaint(pf); 2792 return -EOPNOTSUPP; 2793 } 2794 2795 if (vsi != pf->vsi[pf->lan_vsi]) 2796 return -EOPNOTSUPP; 2797 2798 /* NVM bit on means WoL disabled for the port */ 2799 i40e_read_nvm_word(hw, I40E_SR_NVM_WAKE_ON_LAN, &wol_nvm_bits); 2800 if (BIT(hw->port) & wol_nvm_bits) 2801 return -EOPNOTSUPP; 2802 2803 /* only magic packet is supported */ 2804 if (wol->wolopts & ~WAKE_MAGIC) 2805 return -EOPNOTSUPP; 2806 2807 /* is this a new value? */ 2808 if (pf->wol_en != !!wol->wolopts) { 2809 pf->wol_en = !!wol->wolopts; 2810 device_set_wakeup_enable(&pf->pdev->dev, pf->wol_en); 2811 } 2812 2813 return 0; 2814} 2815 2816static int i40e_set_phys_id(struct net_device *netdev, 2817 enum ethtool_phys_id_state state) 2818{ 2819 struct i40e_netdev_priv *np = netdev_priv(netdev); 2820 struct i40e_pf *pf = np->vsi->back; 2821 struct i40e_hw *hw = &pf->hw; 2822 int blink_freq = 2; 2823 u16 temp_status; 2824 int ret = 0; 2825 2826 switch (state) { 2827 case ETHTOOL_ID_ACTIVE: 2828 if (!test_bit(I40E_HW_CAP_PHY_CONTROLS_LEDS, pf->hw.caps)) { 2829 pf->led_status = i40e_led_get(hw); 2830 } else { 2831 if (!test_bit(I40E_HW_CAP_AQ_PHY_ACCESS, hw->caps)) 2832 i40e_aq_set_phy_debug(hw, I40E_PHY_DEBUG_ALL, 2833 NULL); 2834 ret = i40e_led_get_phy(hw, &temp_status, 2835 &pf->phy_led_val); 2836 pf->led_status = temp_status; 2837 } 2838 return blink_freq; 2839 case ETHTOOL_ID_ON: 2840 if (!test_bit(I40E_HW_CAP_PHY_CONTROLS_LEDS, pf->hw.caps)) 2841 i40e_led_set(hw, 0xf, false); 2842 else 2843 ret = i40e_led_set_phy(hw, true, pf->led_status, 0); 2844 break; 2845 case ETHTOOL_ID_OFF: 2846 if (!test_bit(I40E_HW_CAP_PHY_CONTROLS_LEDS, pf->hw.caps)) 2847 i40e_led_set(hw, 0x0, false); 2848 else 2849 ret = i40e_led_set_phy(hw, false, pf->led_status, 0); 2850 break; 2851 case ETHTOOL_ID_INACTIVE: 2852 if (!test_bit(I40E_HW_CAP_PHY_CONTROLS_LEDS, pf->hw.caps)) { 2853 i40e_led_set(hw, pf->led_status, false); 2854 } else { 2855 ret = i40e_led_set_phy(hw, false, pf->led_status, 2856 (pf->phy_led_val | 2857 I40E_PHY_LED_MODE_ORIG)); 2858 if (!test_bit(I40E_HW_CAP_AQ_PHY_ACCESS, hw->caps)) 2859 i40e_aq_set_phy_debug(hw, 0, NULL); 2860 } 2861 break; 2862 default: 2863 break; 2864 } 2865 if (ret) 2866 return -ENOENT; 2867 else 2868 return 0; 2869} 2870 2871/* NOTE: i40e hardware uses a conversion factor of 2 for Interrupt 2872 * Throttle Rate (ITR) ie. ITR(1) = 2us ITR(10) = 20 us, and also 2873 * 125us (8000 interrupts per second) == ITR(62) 2874 */ 2875 2876/** 2877 * __i40e_get_coalesce - get per-queue coalesce settings 2878 * @netdev: the netdev to check 2879 * @ec: ethtool coalesce data structure 2880 * @queue: which queue to pick 2881 * 2882 * Gets the per-queue settings for coalescence. Specifically Rx and Tx usecs 2883 * are per queue. If queue is <0 then we default to queue 0 as the 2884 * representative value. 2885 **/ 2886static int __i40e_get_coalesce(struct net_device *netdev, 2887 struct ethtool_coalesce *ec, 2888 int queue) 2889{ 2890 struct i40e_netdev_priv *np = netdev_priv(netdev); 2891 struct i40e_ring *rx_ring, *tx_ring; 2892 struct i40e_vsi *vsi = np->vsi; 2893 2894 ec->tx_max_coalesced_frames_irq = vsi->work_limit; 2895 2896 /* rx and tx usecs has per queue value. If user doesn't specify the 2897 * queue, return queue 0's value to represent. 2898 */ 2899 if (queue < 0) 2900 queue = 0; 2901 else if (queue >= vsi->num_queue_pairs) 2902 return -EINVAL; 2903 2904 rx_ring = vsi->rx_rings[queue]; 2905 tx_ring = vsi->tx_rings[queue]; 2906 2907 if (ITR_IS_DYNAMIC(rx_ring->itr_setting)) 2908 ec->use_adaptive_rx_coalesce = 1; 2909 2910 if (ITR_IS_DYNAMIC(tx_ring->itr_setting)) 2911 ec->use_adaptive_tx_coalesce = 1; 2912 2913 ec->rx_coalesce_usecs = rx_ring->itr_setting & ~I40E_ITR_DYNAMIC; 2914 ec->tx_coalesce_usecs = tx_ring->itr_setting & ~I40E_ITR_DYNAMIC; 2915 2916 /* we use the _usecs_high to store/set the interrupt rate limit 2917 * that the hardware supports, that almost but not quite 2918 * fits the original intent of the ethtool variable, 2919 * the rx_coalesce_usecs_high limits total interrupts 2920 * per second from both tx/rx sources. 2921 */ 2922 ec->rx_coalesce_usecs_high = vsi->int_rate_limit; 2923 ec->tx_coalesce_usecs_high = vsi->int_rate_limit; 2924 2925 return 0; 2926} 2927 2928/** 2929 * i40e_get_coalesce - get a netdev's coalesce settings 2930 * @netdev: the netdev to check 2931 * @ec: ethtool coalesce data structure 2932 * @kernel_coal: ethtool CQE mode setting structure 2933 * @extack: extack for reporting error messages 2934 * 2935 * Gets the coalesce settings for a particular netdev. Note that if user has 2936 * modified per-queue settings, this only guarantees to represent queue 0. See 2937 * __i40e_get_coalesce for more details. 2938 **/ 2939static int i40e_get_coalesce(struct net_device *netdev, 2940 struct ethtool_coalesce *ec, 2941 struct kernel_ethtool_coalesce *kernel_coal, 2942 struct netlink_ext_ack *extack) 2943{ 2944 return __i40e_get_coalesce(netdev, ec, -1); 2945} 2946 2947/** 2948 * i40e_get_per_queue_coalesce - gets coalesce settings for particular queue 2949 * @netdev: netdev structure 2950 * @ec: ethtool's coalesce settings 2951 * @queue: the particular queue to read 2952 * 2953 * Will read a specific queue's coalesce settings 2954 **/ 2955static int i40e_get_per_queue_coalesce(struct net_device *netdev, u32 queue, 2956 struct ethtool_coalesce *ec) 2957{ 2958 return __i40e_get_coalesce(netdev, ec, queue); 2959} 2960 2961/** 2962 * i40e_set_itr_per_queue - set ITR values for specific queue 2963 * @vsi: the VSI to set values for 2964 * @ec: coalesce settings from ethtool 2965 * @queue: the queue to modify 2966 * 2967 * Change the ITR settings for a specific queue. 2968 **/ 2969static void i40e_set_itr_per_queue(struct i40e_vsi *vsi, 2970 struct ethtool_coalesce *ec, 2971 int queue) 2972{ 2973 struct i40e_ring *rx_ring = vsi->rx_rings[queue]; 2974 struct i40e_ring *tx_ring = vsi->tx_rings[queue]; 2975 struct i40e_pf *pf = vsi->back; 2976 struct i40e_hw *hw = &pf->hw; 2977 struct i40e_q_vector *q_vector; 2978 u16 intrl; 2979 2980 intrl = i40e_intrl_usec_to_reg(vsi->int_rate_limit); 2981 2982 rx_ring->itr_setting = ITR_REG_ALIGN(ec->rx_coalesce_usecs); 2983 tx_ring->itr_setting = ITR_REG_ALIGN(ec->tx_coalesce_usecs); 2984 2985 if (ec->use_adaptive_rx_coalesce) 2986 rx_ring->itr_setting |= I40E_ITR_DYNAMIC; 2987 else 2988 rx_ring->itr_setting &= ~I40E_ITR_DYNAMIC; 2989 2990 if (ec->use_adaptive_tx_coalesce) 2991 tx_ring->itr_setting |= I40E_ITR_DYNAMIC; 2992 else 2993 tx_ring->itr_setting &= ~I40E_ITR_DYNAMIC; 2994 2995 q_vector = rx_ring->q_vector; 2996 q_vector->rx.target_itr = ITR_TO_REG(rx_ring->itr_setting); 2997 2998 q_vector = tx_ring->q_vector; 2999 q_vector->tx.target_itr = ITR_TO_REG(tx_ring->itr_setting); 3000 3001 /* The interrupt handler itself will take care of programming 3002 * the Tx and Rx ITR values based on the values we have entered 3003 * into the q_vector, no need to write the values now. 3004 */ 3005 3006 wr32(hw, I40E_PFINT_RATEN(q_vector->reg_idx), intrl); 3007 i40e_flush(hw); 3008} 3009 3010/** 3011 * __i40e_set_coalesce - set coalesce settings for particular queue 3012 * @netdev: the netdev to change 3013 * @ec: ethtool coalesce settings 3014 * @queue: the queue to change 3015 * 3016 * Sets the coalesce settings for a particular queue. 3017 **/ 3018static int __i40e_set_coalesce(struct net_device *netdev, 3019 struct ethtool_coalesce *ec, 3020 int queue) 3021{ 3022 struct i40e_netdev_priv *np = netdev_priv(netdev); 3023 u16 intrl_reg, cur_rx_itr, cur_tx_itr; 3024 struct i40e_vsi *vsi = np->vsi; 3025 struct i40e_pf *pf = vsi->back; 3026 int i; 3027 3028 if (ec->tx_max_coalesced_frames_irq) 3029 vsi->work_limit = ec->tx_max_coalesced_frames_irq; 3030 3031 if (queue < 0) { 3032 cur_rx_itr = vsi->rx_rings[0]->itr_setting; 3033 cur_tx_itr = vsi->tx_rings[0]->itr_setting; 3034 } else if (queue < vsi->num_queue_pairs) { 3035 cur_rx_itr = vsi->rx_rings[queue]->itr_setting; 3036 cur_tx_itr = vsi->tx_rings[queue]->itr_setting; 3037 } else { 3038 netif_info(pf, drv, netdev, "Invalid queue value, queue range is 0 - %d\n", 3039 vsi->num_queue_pairs - 1); 3040 return -EINVAL; 3041 } 3042 3043 cur_tx_itr &= ~I40E_ITR_DYNAMIC; 3044 cur_rx_itr &= ~I40E_ITR_DYNAMIC; 3045 3046 /* tx_coalesce_usecs_high is ignored, use rx-usecs-high instead */ 3047 if (ec->tx_coalesce_usecs_high != vsi->int_rate_limit) { 3048 netif_info(pf, drv, netdev, "tx-usecs-high is not used, please program rx-usecs-high\n"); 3049 return -EINVAL; 3050 } 3051 3052 if (ec->rx_coalesce_usecs_high > INTRL_REG_TO_USEC(I40E_MAX_INTRL)) { 3053 netif_info(pf, drv, netdev, "Invalid value, rx-usecs-high range is 0-%lu\n", 3054 INTRL_REG_TO_USEC(I40E_MAX_INTRL)); 3055 return -EINVAL; 3056 } 3057 3058 if (ec->rx_coalesce_usecs != cur_rx_itr && 3059 ec->use_adaptive_rx_coalesce) { 3060 netif_info(pf, drv, netdev, "RX interrupt moderation cannot be changed if adaptive-rx is enabled.\n"); 3061 return -EINVAL; 3062 } 3063 3064 if (ec->rx_coalesce_usecs > I40E_MAX_ITR) { 3065 netif_info(pf, drv, netdev, "Invalid value, rx-usecs range is 0-8160\n"); 3066 return -EINVAL; 3067 } 3068 3069 if (ec->tx_coalesce_usecs != cur_tx_itr && 3070 ec->use_adaptive_tx_coalesce) { 3071 netif_info(pf, drv, netdev, "TX interrupt moderation cannot be changed if adaptive-tx is enabled.\n"); 3072 return -EINVAL; 3073 } 3074 3075 if (ec->tx_coalesce_usecs > I40E_MAX_ITR) { 3076 netif_info(pf, drv, netdev, "Invalid value, tx-usecs range is 0-8160\n"); 3077 return -EINVAL; 3078 } 3079 3080 if (ec->use_adaptive_rx_coalesce && !cur_rx_itr) 3081 ec->rx_coalesce_usecs = I40E_MIN_ITR; 3082 3083 if (ec->use_adaptive_tx_coalesce && !cur_tx_itr) 3084 ec->tx_coalesce_usecs = I40E_MIN_ITR; 3085 3086 intrl_reg = i40e_intrl_usec_to_reg(ec->rx_coalesce_usecs_high); 3087 vsi->int_rate_limit = INTRL_REG_TO_USEC(intrl_reg); 3088 if (vsi->int_rate_limit != ec->rx_coalesce_usecs_high) { 3089 netif_info(pf, drv, netdev, "Interrupt rate limit rounded down to %d\n", 3090 vsi->int_rate_limit); 3091 } 3092 3093 /* rx and tx usecs has per queue value. If user doesn't specify the 3094 * queue, apply to all queues. 3095 */ 3096 if (queue < 0) { 3097 for (i = 0; i < vsi->num_queue_pairs; i++) 3098 i40e_set_itr_per_queue(vsi, ec, i); 3099 } else { 3100 i40e_set_itr_per_queue(vsi, ec, queue); 3101 } 3102 3103 return 0; 3104} 3105 3106/** 3107 * i40e_set_coalesce - set coalesce settings for every queue on the netdev 3108 * @netdev: the netdev to change 3109 * @ec: ethtool coalesce settings 3110 * @kernel_coal: ethtool CQE mode setting structure 3111 * @extack: extack for reporting error messages 3112 * 3113 * This will set each queue to the same coalesce settings. 3114 **/ 3115static int i40e_set_coalesce(struct net_device *netdev, 3116 struct ethtool_coalesce *ec, 3117 struct kernel_ethtool_coalesce *kernel_coal, 3118 struct netlink_ext_ack *extack) 3119{ 3120 return __i40e_set_coalesce(netdev, ec, -1); 3121} 3122 3123/** 3124 * i40e_set_per_queue_coalesce - set specific queue's coalesce settings 3125 * @netdev: the netdev to change 3126 * @ec: ethtool's coalesce settings 3127 * @queue: the queue to change 3128 * 3129 * Sets the specified queue's coalesce settings. 3130 **/ 3131static int i40e_set_per_queue_coalesce(struct net_device *netdev, u32 queue, 3132 struct ethtool_coalesce *ec) 3133{ 3134 return __i40e_set_coalesce(netdev, ec, queue); 3135} 3136 3137/** 3138 * i40e_get_rss_hash_opts - Get RSS hash Input Set for each flow type 3139 * @pf: pointer to the physical function struct 3140 * @cmd: ethtool rxnfc command 3141 * 3142 * Returns Success if the flow is supported, else Invalid Input. 3143 **/ 3144static int i40e_get_rss_hash_opts(struct i40e_pf *pf, struct ethtool_rxnfc *cmd) 3145{ 3146 struct i40e_hw *hw = &pf->hw; 3147 u8 flow_pctype = 0; 3148 u64 i_set = 0; 3149 3150 cmd->data = 0; 3151 3152 switch (cmd->flow_type) { 3153 case TCP_V4_FLOW: 3154 flow_pctype = I40E_FILTER_PCTYPE_NONF_IPV4_TCP; 3155 break; 3156 case UDP_V4_FLOW: 3157 flow_pctype = I40E_FILTER_PCTYPE_NONF_IPV4_UDP; 3158 break; 3159 case TCP_V6_FLOW: 3160 flow_pctype = I40E_FILTER_PCTYPE_NONF_IPV6_TCP; 3161 break; 3162 case UDP_V6_FLOW: 3163 flow_pctype = I40E_FILTER_PCTYPE_NONF_IPV6_UDP; 3164 break; 3165 case SCTP_V4_FLOW: 3166 case AH_ESP_V4_FLOW: 3167 case AH_V4_FLOW: 3168 case ESP_V4_FLOW: 3169 case IPV4_FLOW: 3170 case SCTP_V6_FLOW: 3171 case AH_ESP_V6_FLOW: 3172 case AH_V6_FLOW: 3173 case ESP_V6_FLOW: 3174 case IPV6_FLOW: 3175 /* Default is src/dest for IP, no matter the L4 hashing */ 3176 cmd->data |= RXH_IP_SRC | RXH_IP_DST; 3177 break; 3178 default: 3179 return -EINVAL; 3180 } 3181 3182 /* Read flow based hash input set register */ 3183 if (flow_pctype) { 3184 i_set = (u64)i40e_read_rx_ctl(hw, I40E_GLQF_HASH_INSET(0, 3185 flow_pctype)) | 3186 ((u64)i40e_read_rx_ctl(hw, I40E_GLQF_HASH_INSET(1, 3187 flow_pctype)) << 32); 3188 } 3189 3190 /* Process bits of hash input set */ 3191 if (i_set) { 3192 if (i_set & I40E_L4_SRC_MASK) 3193 cmd->data |= RXH_L4_B_0_1; 3194 if (i_set & I40E_L4_DST_MASK) 3195 cmd->data |= RXH_L4_B_2_3; 3196 3197 if (cmd->flow_type == TCP_V4_FLOW || 3198 cmd->flow_type == UDP_V4_FLOW) { 3199 if (hw->mac.type == I40E_MAC_X722) { 3200 if (i_set & I40E_X722_L3_SRC_MASK) 3201 cmd->data |= RXH_IP_SRC; 3202 if (i_set & I40E_X722_L3_DST_MASK) 3203 cmd->data |= RXH_IP_DST; 3204 } else { 3205 if (i_set & I40E_L3_SRC_MASK) 3206 cmd->data |= RXH_IP_SRC; 3207 if (i_set & I40E_L3_DST_MASK) 3208 cmd->data |= RXH_IP_DST; 3209 } 3210 } else if (cmd->flow_type == TCP_V6_FLOW || 3211 cmd->flow_type == UDP_V6_FLOW) { 3212 if (i_set & I40E_L3_V6_SRC_MASK) 3213 cmd->data |= RXH_IP_SRC; 3214 if (i_set & I40E_L3_V6_DST_MASK) 3215 cmd->data |= RXH_IP_DST; 3216 } 3217 } 3218 3219 return 0; 3220} 3221 3222/** 3223 * i40e_check_mask - Check whether a mask field is set 3224 * @mask: the full mask value 3225 * @field: mask of the field to check 3226 * 3227 * If the given mask is fully set, return positive value. If the mask for the 3228 * field is fully unset, return zero. Otherwise return a negative error code. 3229 **/ 3230static int i40e_check_mask(u64 mask, u64 field) 3231{ 3232 u64 value = mask & field; 3233 3234 if (value == field) 3235 return 1; 3236 else if (!value) 3237 return 0; 3238 else 3239 return -1; 3240} 3241 3242/** 3243 * i40e_parse_rx_flow_user_data - Deconstruct user-defined data 3244 * @fsp: pointer to rx flow specification 3245 * @data: pointer to userdef data structure for storage 3246 * 3247 * Read the user-defined data and deconstruct the value into a structure. No 3248 * other code should read the user-defined data, so as to ensure that every 3249 * place consistently reads the value correctly. 3250 * 3251 * The user-defined field is a 64bit Big Endian format value, which we 3252 * deconstruct by reading bits or bit fields from it. Single bit flags shall 3253 * be defined starting from the highest bits, while small bit field values 3254 * shall be defined starting from the lowest bits. 3255 * 3256 * Returns 0 if the data is valid, and non-zero if the userdef data is invalid 3257 * and the filter should be rejected. The data structure will always be 3258 * modified even if FLOW_EXT is not set. 3259 * 3260 **/ 3261static int i40e_parse_rx_flow_user_data(struct ethtool_rx_flow_spec *fsp, 3262 struct i40e_rx_flow_userdef *data) 3263{ 3264 u64 value, mask; 3265 int valid; 3266 3267 /* Zero memory first so it's always consistent. */ 3268 memset(data, 0, sizeof(*data)); 3269 3270 if (!(fsp->flow_type & FLOW_EXT)) 3271 return 0; 3272 3273 value = be64_to_cpu(*((__be64 *)fsp->h_ext.data)); 3274 mask = be64_to_cpu(*((__be64 *)fsp->m_ext.data)); 3275 3276#define I40E_USERDEF_FLEX_WORD GENMASK_ULL(15, 0) 3277#define I40E_USERDEF_FLEX_OFFSET GENMASK_ULL(31, 16) 3278#define I40E_USERDEF_FLEX_FILTER GENMASK_ULL(31, 0) 3279 3280 valid = i40e_check_mask(mask, I40E_USERDEF_FLEX_FILTER); 3281 if (valid < 0) { 3282 return -EINVAL; 3283 } else if (valid) { 3284 data->flex_word = value & I40E_USERDEF_FLEX_WORD; 3285 data->flex_offset = 3286 FIELD_GET(I40E_USERDEF_FLEX_OFFSET, value); 3287 data->flex_filter = true; 3288 } 3289 3290 return 0; 3291} 3292 3293/** 3294 * i40e_fill_rx_flow_user_data - Fill in user-defined data field 3295 * @fsp: pointer to rx_flow specification 3296 * @data: pointer to return userdef data 3297 * 3298 * Reads the userdef data structure and properly fills in the user defined 3299 * fields of the rx_flow_spec. 3300 **/ 3301static void i40e_fill_rx_flow_user_data(struct ethtool_rx_flow_spec *fsp, 3302 struct i40e_rx_flow_userdef *data) 3303{ 3304 u64 value = 0, mask = 0; 3305 3306 if (data->flex_filter) { 3307 value |= data->flex_word; 3308 value |= (u64)data->flex_offset << 16; 3309 mask |= I40E_USERDEF_FLEX_FILTER; 3310 } 3311 3312 if (value || mask) 3313 fsp->flow_type |= FLOW_EXT; 3314 3315 *((__be64 *)fsp->h_ext.data) = cpu_to_be64(value); 3316 *((__be64 *)fsp->m_ext.data) = cpu_to_be64(mask); 3317} 3318 3319/** 3320 * i40e_get_ethtool_fdir_all - Populates the rule count of a command 3321 * @pf: Pointer to the physical function struct 3322 * @cmd: The command to get or set Rx flow classification rules 3323 * @rule_locs: Array of used rule locations 3324 * 3325 * This function populates both the total and actual rule count of 3326 * the ethtool flow classification command 3327 * 3328 * Returns 0 on success or -EMSGSIZE if entry not found 3329 **/ 3330static int i40e_get_ethtool_fdir_all(struct i40e_pf *pf, 3331 struct ethtool_rxnfc *cmd, 3332 u32 *rule_locs) 3333{ 3334 struct i40e_fdir_filter *rule; 3335 struct hlist_node *node2; 3336 int cnt = 0; 3337 3338 /* report total rule count */ 3339 cmd->data = i40e_get_fd_cnt_all(pf); 3340 3341 hlist_for_each_entry_safe(rule, node2, 3342 &pf->fdir_filter_list, fdir_node) { 3343 if (cnt == cmd->rule_cnt) 3344 return -EMSGSIZE; 3345 3346 rule_locs[cnt] = rule->fd_id; 3347 cnt++; 3348 } 3349 3350 cmd->rule_cnt = cnt; 3351 3352 return 0; 3353} 3354 3355/** 3356 * i40e_get_ethtool_fdir_entry - Look up a filter based on Rx flow 3357 * @pf: Pointer to the physical function struct 3358 * @cmd: The command to get or set Rx flow classification rules 3359 * 3360 * This function looks up a filter based on the Rx flow classification 3361 * command and fills the flow spec info for it if found 3362 * 3363 * Returns 0 on success or -EINVAL if filter not found 3364 **/ 3365static int i40e_get_ethtool_fdir_entry(struct i40e_pf *pf, 3366 struct ethtool_rxnfc *cmd) 3367{ 3368 struct ethtool_rx_flow_spec *fsp = 3369 (struct ethtool_rx_flow_spec *)&cmd->fs; 3370 struct i40e_rx_flow_userdef userdef = {0}; 3371 struct i40e_fdir_filter *rule = NULL; 3372 struct hlist_node *node2; 3373 u64 input_set; 3374 u16 index; 3375 3376 hlist_for_each_entry_safe(rule, node2, 3377 &pf->fdir_filter_list, fdir_node) { 3378 if (fsp->location <= rule->fd_id) 3379 break; 3380 } 3381 3382 if (!rule || fsp->location != rule->fd_id) 3383 return -EINVAL; 3384 3385 fsp->flow_type = rule->flow_type; 3386 if (fsp->flow_type == IP_USER_FLOW) { 3387 fsp->h_u.usr_ip4_spec.ip_ver = ETH_RX_NFC_IP4; 3388 fsp->h_u.usr_ip4_spec.proto = 0; 3389 fsp->m_u.usr_ip4_spec.proto = 0; 3390 } 3391 3392 if (fsp->flow_type == IPV6_USER_FLOW || 3393 fsp->flow_type == UDP_V6_FLOW || 3394 fsp->flow_type == TCP_V6_FLOW || 3395 fsp->flow_type == SCTP_V6_FLOW) { 3396 /* Reverse the src and dest notion, since the HW views them 3397 * from Tx perspective where as the user expects it from 3398 * Rx filter view. 3399 */ 3400 fsp->h_u.tcp_ip6_spec.psrc = rule->dst_port; 3401 fsp->h_u.tcp_ip6_spec.pdst = rule->src_port; 3402 memcpy(fsp->h_u.tcp_ip6_spec.ip6dst, rule->src_ip6, 3403 sizeof(__be32) * 4); 3404 memcpy(fsp->h_u.tcp_ip6_spec.ip6src, rule->dst_ip6, 3405 sizeof(__be32) * 4); 3406 } else { 3407 /* Reverse the src and dest notion, since the HW views them 3408 * from Tx perspective where as the user expects it from 3409 * Rx filter view. 3410 */ 3411 fsp->h_u.tcp_ip4_spec.psrc = rule->dst_port; 3412 fsp->h_u.tcp_ip4_spec.pdst = rule->src_port; 3413 fsp->h_u.tcp_ip4_spec.ip4src = rule->dst_ip; 3414 fsp->h_u.tcp_ip4_spec.ip4dst = rule->src_ip; 3415 } 3416 3417 switch (rule->flow_type) { 3418 case SCTP_V4_FLOW: 3419 index = I40E_FILTER_PCTYPE_NONF_IPV4_SCTP; 3420 break; 3421 case TCP_V4_FLOW: 3422 index = I40E_FILTER_PCTYPE_NONF_IPV4_TCP; 3423 break; 3424 case UDP_V4_FLOW: 3425 index = I40E_FILTER_PCTYPE_NONF_IPV4_UDP; 3426 break; 3427 case SCTP_V6_FLOW: 3428 index = I40E_FILTER_PCTYPE_NONF_IPV6_SCTP; 3429 break; 3430 case TCP_V6_FLOW: 3431 index = I40E_FILTER_PCTYPE_NONF_IPV6_TCP; 3432 break; 3433 case UDP_V6_FLOW: 3434 index = I40E_FILTER_PCTYPE_NONF_IPV6_UDP; 3435 break; 3436 case IP_USER_FLOW: 3437 index = I40E_FILTER_PCTYPE_NONF_IPV4_OTHER; 3438 break; 3439 case IPV6_USER_FLOW: 3440 index = I40E_FILTER_PCTYPE_NONF_IPV6_OTHER; 3441 break; 3442 default: 3443 /* If we have stored a filter with a flow type not listed here 3444 * it is almost certainly a driver bug. WARN(), and then 3445 * assign the input_set as if all fields are enabled to avoid 3446 * reading unassigned memory. 3447 */ 3448 WARN(1, "Missing input set index for flow_type %d\n", 3449 rule->flow_type); 3450 input_set = 0xFFFFFFFFFFFFFFFFULL; 3451 goto no_input_set; 3452 } 3453 3454 input_set = i40e_read_fd_input_set(pf, index); 3455 3456no_input_set: 3457 if (input_set & I40E_L3_V6_SRC_MASK) { 3458 fsp->m_u.tcp_ip6_spec.ip6src[0] = htonl(0xFFFFFFFF); 3459 fsp->m_u.tcp_ip6_spec.ip6src[1] = htonl(0xFFFFFFFF); 3460 fsp->m_u.tcp_ip6_spec.ip6src[2] = htonl(0xFFFFFFFF); 3461 fsp->m_u.tcp_ip6_spec.ip6src[3] = htonl(0xFFFFFFFF); 3462 } 3463 3464 if (input_set & I40E_L3_V6_DST_MASK) { 3465 fsp->m_u.tcp_ip6_spec.ip6dst[0] = htonl(0xFFFFFFFF); 3466 fsp->m_u.tcp_ip6_spec.ip6dst[1] = htonl(0xFFFFFFFF); 3467 fsp->m_u.tcp_ip6_spec.ip6dst[2] = htonl(0xFFFFFFFF); 3468 fsp->m_u.tcp_ip6_spec.ip6dst[3] = htonl(0xFFFFFFFF); 3469 } 3470 3471 if (input_set & I40E_L3_SRC_MASK) 3472 fsp->m_u.tcp_ip4_spec.ip4src = htonl(0xFFFFFFFF); 3473 3474 if (input_set & I40E_L3_DST_MASK) 3475 fsp->m_u.tcp_ip4_spec.ip4dst = htonl(0xFFFFFFFF); 3476 3477 if (input_set & I40E_L4_SRC_MASK) 3478 fsp->m_u.tcp_ip4_spec.psrc = htons(0xFFFF); 3479 3480 if (input_set & I40E_L4_DST_MASK) 3481 fsp->m_u.tcp_ip4_spec.pdst = htons(0xFFFF); 3482 3483 if (rule->dest_ctl == I40E_FILTER_PROGRAM_DESC_DEST_DROP_PACKET) 3484 fsp->ring_cookie = RX_CLS_FLOW_DISC; 3485 else 3486 fsp->ring_cookie = rule->q_index; 3487 3488 if (rule->vlan_tag) { 3489 fsp->h_ext.vlan_etype = rule->vlan_etype; 3490 fsp->m_ext.vlan_etype = htons(0xFFFF); 3491 fsp->h_ext.vlan_tci = rule->vlan_tag; 3492 fsp->m_ext.vlan_tci = htons(0xFFFF); 3493 fsp->flow_type |= FLOW_EXT; 3494 } 3495 3496 if (rule->dest_vsi != pf->vsi[pf->lan_vsi]->id) { 3497 struct i40e_vsi *vsi; 3498 3499 vsi = i40e_find_vsi_from_id(pf, rule->dest_vsi); 3500 if (vsi && vsi->type == I40E_VSI_SRIOV) { 3501 /* VFs are zero-indexed by the driver, but ethtool 3502 * expects them to be one-indexed, so add one here 3503 */ 3504 u64 ring_vf = vsi->vf_id + 1; 3505 3506 ring_vf <<= ETHTOOL_RX_FLOW_SPEC_RING_VF_OFF; 3507 fsp->ring_cookie |= ring_vf; 3508 } 3509 } 3510 3511 if (rule->flex_filter) { 3512 userdef.flex_filter = true; 3513 userdef.flex_word = be16_to_cpu(rule->flex_word); 3514 userdef.flex_offset = rule->flex_offset; 3515 } 3516 3517 i40e_fill_rx_flow_user_data(fsp, &userdef); 3518 3519 return 0; 3520} 3521 3522/** 3523 * i40e_get_rxnfc - command to get RX flow classification rules 3524 * @netdev: network interface device structure 3525 * @cmd: ethtool rxnfc command 3526 * @rule_locs: pointer to store rule data 3527 * 3528 * Returns Success if the command is supported. 3529 **/ 3530static int i40e_get_rxnfc(struct net_device *netdev, struct ethtool_rxnfc *cmd, 3531 u32 *rule_locs) 3532{ 3533 struct i40e_netdev_priv *np = netdev_priv(netdev); 3534 struct i40e_vsi *vsi = np->vsi; 3535 struct i40e_pf *pf = vsi->back; 3536 int ret = -EOPNOTSUPP; 3537 3538 switch (cmd->cmd) { 3539 case ETHTOOL_GRXRINGS: 3540 cmd->data = vsi->rss_size; 3541 ret = 0; 3542 break; 3543 case ETHTOOL_GRXFH: 3544 ret = i40e_get_rss_hash_opts(pf, cmd); 3545 break; 3546 case ETHTOOL_GRXCLSRLCNT: 3547 cmd->rule_cnt = pf->fdir_pf_active_filters; 3548 /* report total rule count */ 3549 cmd->data = i40e_get_fd_cnt_all(pf); 3550 ret = 0; 3551 break; 3552 case ETHTOOL_GRXCLSRULE: 3553 ret = i40e_get_ethtool_fdir_entry(pf, cmd); 3554 break; 3555 case ETHTOOL_GRXCLSRLALL: 3556 ret = i40e_get_ethtool_fdir_all(pf, cmd, rule_locs); 3557 break; 3558 default: 3559 break; 3560 } 3561 3562 return ret; 3563} 3564 3565/** 3566 * i40e_get_rss_hash_bits - Read RSS Hash bits from register 3567 * @hw: hw structure 3568 * @nfc: pointer to user request 3569 * @i_setc: bits currently set 3570 * 3571 * Returns value of bits to be set per user request 3572 **/ 3573static u64 i40e_get_rss_hash_bits(struct i40e_hw *hw, 3574 struct ethtool_rxnfc *nfc, 3575 u64 i_setc) 3576{ 3577 u64 i_set = i_setc; 3578 u64 src_l3 = 0, dst_l3 = 0; 3579 3580 if (nfc->data & RXH_L4_B_0_1) 3581 i_set |= I40E_L4_SRC_MASK; 3582 else 3583 i_set &= ~I40E_L4_SRC_MASK; 3584 if (nfc->data & RXH_L4_B_2_3) 3585 i_set |= I40E_L4_DST_MASK; 3586 else 3587 i_set &= ~I40E_L4_DST_MASK; 3588 3589 if (nfc->flow_type == TCP_V6_FLOW || nfc->flow_type == UDP_V6_FLOW) { 3590 src_l3 = I40E_L3_V6_SRC_MASK; 3591 dst_l3 = I40E_L3_V6_DST_MASK; 3592 } else if (nfc->flow_type == TCP_V4_FLOW || 3593 nfc->flow_type == UDP_V4_FLOW) { 3594 if (hw->mac.type == I40E_MAC_X722) { 3595 src_l3 = I40E_X722_L3_SRC_MASK; 3596 dst_l3 = I40E_X722_L3_DST_MASK; 3597 } else { 3598 src_l3 = I40E_L3_SRC_MASK; 3599 dst_l3 = I40E_L3_DST_MASK; 3600 } 3601 } else { 3602 /* Any other flow type are not supported here */ 3603 return i_set; 3604 } 3605 3606 if (nfc->data & RXH_IP_SRC) 3607 i_set |= src_l3; 3608 else 3609 i_set &= ~src_l3; 3610 if (nfc->data & RXH_IP_DST) 3611 i_set |= dst_l3; 3612 else 3613 i_set &= ~dst_l3; 3614 3615 return i_set; 3616} 3617 3618#define FLOW_PCTYPES_SIZE 64 3619/** 3620 * i40e_set_rss_hash_opt - Enable/Disable flow types for RSS hash 3621 * @pf: pointer to the physical function struct 3622 * @nfc: ethtool rxnfc command 3623 * 3624 * Returns Success if the flow input set is supported. 3625 **/ 3626static int i40e_set_rss_hash_opt(struct i40e_pf *pf, struct ethtool_rxnfc *nfc) 3627{ 3628 struct i40e_hw *hw = &pf->hw; 3629 u64 hena = (u64)i40e_read_rx_ctl(hw, I40E_PFQF_HENA(0)) | 3630 ((u64)i40e_read_rx_ctl(hw, I40E_PFQF_HENA(1)) << 32); 3631 DECLARE_BITMAP(flow_pctypes, FLOW_PCTYPES_SIZE); 3632 u64 i_set, i_setc; 3633 3634 bitmap_zero(flow_pctypes, FLOW_PCTYPES_SIZE); 3635 3636 if (test_bit(I40E_FLAG_MFP_ENA, pf->flags)) { 3637 dev_err(&pf->pdev->dev, 3638 "Change of RSS hash input set is not supported when MFP mode is enabled\n"); 3639 return -EOPNOTSUPP; 3640 } 3641 3642 /* RSS does not support anything other than hashing 3643 * to queues on src and dst IPs and ports 3644 */ 3645 if (nfc->data & ~(RXH_IP_SRC | RXH_IP_DST | 3646 RXH_L4_B_0_1 | RXH_L4_B_2_3)) 3647 return -EINVAL; 3648 3649 switch (nfc->flow_type) { 3650 case TCP_V4_FLOW: 3651 set_bit(I40E_FILTER_PCTYPE_NONF_IPV4_TCP, flow_pctypes); 3652 if (test_bit(I40E_HW_CAP_MULTI_TCP_UDP_RSS_PCTYPE, 3653 pf->hw.caps)) 3654 set_bit(I40E_FILTER_PCTYPE_NONF_IPV4_TCP_SYN_NO_ACK, 3655 flow_pctypes); 3656 break; 3657 case TCP_V6_FLOW: 3658 set_bit(I40E_FILTER_PCTYPE_NONF_IPV6_TCP, flow_pctypes); 3659 if (test_bit(I40E_HW_CAP_MULTI_TCP_UDP_RSS_PCTYPE, 3660 pf->hw.caps)) 3661 set_bit(I40E_FILTER_PCTYPE_NONF_IPV6_TCP_SYN_NO_ACK, 3662 flow_pctypes); 3663 break; 3664 case UDP_V4_FLOW: 3665 set_bit(I40E_FILTER_PCTYPE_NONF_IPV4_UDP, flow_pctypes); 3666 if (test_bit(I40E_HW_CAP_MULTI_TCP_UDP_RSS_PCTYPE, 3667 pf->hw.caps)) { 3668 set_bit(I40E_FILTER_PCTYPE_NONF_UNICAST_IPV4_UDP, 3669 flow_pctypes); 3670 set_bit(I40E_FILTER_PCTYPE_NONF_MULTICAST_IPV4_UDP, 3671 flow_pctypes); 3672 } 3673 hena |= BIT_ULL(I40E_FILTER_PCTYPE_FRAG_IPV4); 3674 break; 3675 case UDP_V6_FLOW: 3676 set_bit(I40E_FILTER_PCTYPE_NONF_IPV6_UDP, flow_pctypes); 3677 if (test_bit(I40E_HW_CAP_MULTI_TCP_UDP_RSS_PCTYPE, 3678 pf->hw.caps)) { 3679 set_bit(I40E_FILTER_PCTYPE_NONF_UNICAST_IPV6_UDP, 3680 flow_pctypes); 3681 set_bit(I40E_FILTER_PCTYPE_NONF_MULTICAST_IPV6_UDP, 3682 flow_pctypes); 3683 } 3684 hena |= BIT_ULL(I40E_FILTER_PCTYPE_FRAG_IPV6); 3685 break; 3686 case AH_ESP_V4_FLOW: 3687 case AH_V4_FLOW: 3688 case ESP_V4_FLOW: 3689 case SCTP_V4_FLOW: 3690 if ((nfc->data & RXH_L4_B_0_1) || 3691 (nfc->data & RXH_L4_B_2_3)) 3692 return -EINVAL; 3693 hena |= BIT_ULL(I40E_FILTER_PCTYPE_NONF_IPV4_OTHER); 3694 break; 3695 case AH_ESP_V6_FLOW: 3696 case AH_V6_FLOW: 3697 case ESP_V6_FLOW: 3698 case SCTP_V6_FLOW: 3699 if ((nfc->data & RXH_L4_B_0_1) || 3700 (nfc->data & RXH_L4_B_2_3)) 3701 return -EINVAL; 3702 hena |= BIT_ULL(I40E_FILTER_PCTYPE_NONF_IPV6_OTHER); 3703 break; 3704 case IPV4_FLOW: 3705 hena |= BIT_ULL(I40E_FILTER_PCTYPE_NONF_IPV4_OTHER) | 3706 BIT_ULL(I40E_FILTER_PCTYPE_FRAG_IPV4); 3707 break; 3708 case IPV6_FLOW: 3709 hena |= BIT_ULL(I40E_FILTER_PCTYPE_NONF_IPV6_OTHER) | 3710 BIT_ULL(I40E_FILTER_PCTYPE_FRAG_IPV6); 3711 break; 3712 default: 3713 return -EINVAL; 3714 } 3715 3716 if (bitmap_weight(flow_pctypes, FLOW_PCTYPES_SIZE)) { 3717 u8 flow_id; 3718 3719 for_each_set_bit(flow_id, flow_pctypes, FLOW_PCTYPES_SIZE) { 3720 i_setc = (u64)i40e_read_rx_ctl(hw, I40E_GLQF_HASH_INSET(0, flow_id)) | 3721 ((u64)i40e_read_rx_ctl(hw, I40E_GLQF_HASH_INSET(1, flow_id)) << 32); 3722 i_set = i40e_get_rss_hash_bits(&pf->hw, nfc, i_setc); 3723 3724 i40e_write_rx_ctl(hw, I40E_GLQF_HASH_INSET(0, flow_id), 3725 (u32)i_set); 3726 i40e_write_rx_ctl(hw, I40E_GLQF_HASH_INSET(1, flow_id), 3727 (u32)(i_set >> 32)); 3728 hena |= BIT_ULL(flow_id); 3729 } 3730 } 3731 3732 i40e_write_rx_ctl(hw, I40E_PFQF_HENA(0), (u32)hena); 3733 i40e_write_rx_ctl(hw, I40E_PFQF_HENA(1), (u32)(hena >> 32)); 3734 i40e_flush(hw); 3735 3736 return 0; 3737} 3738 3739/** 3740 * i40e_update_ethtool_fdir_entry - Updates the fdir filter entry 3741 * @vsi: Pointer to the targeted VSI 3742 * @input: The filter to update or NULL to indicate deletion 3743 * @sw_idx: Software index to the filter 3744 * @cmd: The command to get or set Rx flow classification rules 3745 * 3746 * This function updates (or deletes) a Flow Director entry from 3747 * the hlist of the corresponding PF 3748 * 3749 * Returns 0 on success 3750 **/ 3751static int i40e_update_ethtool_fdir_entry(struct i40e_vsi *vsi, 3752 struct i40e_fdir_filter *input, 3753 u16 sw_idx, 3754 struct ethtool_rxnfc *cmd) 3755{ 3756 struct i40e_fdir_filter *rule, *parent; 3757 struct i40e_pf *pf = vsi->back; 3758 struct hlist_node *node2; 3759 int err = -EINVAL; 3760 3761 parent = NULL; 3762 rule = NULL; 3763 3764 hlist_for_each_entry_safe(rule, node2, 3765 &pf->fdir_filter_list, fdir_node) { 3766 /* hash found, or no matching entry */ 3767 if (rule->fd_id >= sw_idx) 3768 break; 3769 parent = rule; 3770 } 3771 3772 /* if there is an old rule occupying our place remove it */ 3773 if (rule && (rule->fd_id == sw_idx)) { 3774 /* Remove this rule, since we're either deleting it, or 3775 * replacing it. 3776 */ 3777 err = i40e_add_del_fdir(vsi, rule, false); 3778 hlist_del(&rule->fdir_node); 3779 kfree(rule); 3780 pf->fdir_pf_active_filters--; 3781 } 3782 3783 /* If we weren't given an input, this is a delete, so just return the 3784 * error code indicating if there was an entry at the requested slot 3785 */ 3786 if (!input) 3787 return err; 3788 3789 /* Otherwise, install the new rule as requested */ 3790 INIT_HLIST_NODE(&input->fdir_node); 3791 3792 /* add filter to the list */ 3793 if (parent) 3794 hlist_add_behind(&input->fdir_node, &parent->fdir_node); 3795 else 3796 hlist_add_head(&input->fdir_node, 3797 &pf->fdir_filter_list); 3798 3799 /* update counts */ 3800 pf->fdir_pf_active_filters++; 3801 3802 return 0; 3803} 3804 3805/** 3806 * i40e_prune_flex_pit_list - Cleanup unused entries in FLX_PIT table 3807 * @pf: pointer to PF structure 3808 * 3809 * This function searches the list of filters and determines which FLX_PIT 3810 * entries are still required. It will prune any entries which are no longer 3811 * in use after the deletion. 3812 **/ 3813static void i40e_prune_flex_pit_list(struct i40e_pf *pf) 3814{ 3815 struct i40e_flex_pit *entry, *tmp; 3816 struct i40e_fdir_filter *rule; 3817 3818 /* First, we'll check the l3 table */ 3819 list_for_each_entry_safe(entry, tmp, &pf->l3_flex_pit_list, list) { 3820 bool found = false; 3821 3822 hlist_for_each_entry(rule, &pf->fdir_filter_list, fdir_node) { 3823 if (rule->flow_type != IP_USER_FLOW) 3824 continue; 3825 if (rule->flex_filter && 3826 rule->flex_offset == entry->src_offset) { 3827 found = true; 3828 break; 3829 } 3830 } 3831 3832 /* If we didn't find the filter, then we can prune this entry 3833 * from the list. 3834 */ 3835 if (!found) { 3836 list_del(&entry->list); 3837 kfree(entry); 3838 } 3839 } 3840 3841 /* Followed by the L4 table */ 3842 list_for_each_entry_safe(entry, tmp, &pf->l4_flex_pit_list, list) { 3843 bool found = false; 3844 3845 hlist_for_each_entry(rule, &pf->fdir_filter_list, fdir_node) { 3846 /* Skip this filter if it's L3, since we already 3847 * checked those in the above loop 3848 */ 3849 if (rule->flow_type == IP_USER_FLOW) 3850 continue; 3851 if (rule->flex_filter && 3852 rule->flex_offset == entry->src_offset) { 3853 found = true; 3854 break; 3855 } 3856 } 3857 3858 /* If we didn't find the filter, then we can prune this entry 3859 * from the list. 3860 */ 3861 if (!found) { 3862 list_del(&entry->list); 3863 kfree(entry); 3864 } 3865 } 3866} 3867 3868/** 3869 * i40e_del_fdir_entry - Deletes a Flow Director filter entry 3870 * @vsi: Pointer to the targeted VSI 3871 * @cmd: The command to get or set Rx flow classification rules 3872 * 3873 * The function removes a Flow Director filter entry from the 3874 * hlist of the corresponding PF 3875 * 3876 * Returns 0 on success 3877 */ 3878static int i40e_del_fdir_entry(struct i40e_vsi *vsi, 3879 struct ethtool_rxnfc *cmd) 3880{ 3881 struct ethtool_rx_flow_spec *fsp = 3882 (struct ethtool_rx_flow_spec *)&cmd->fs; 3883 struct i40e_pf *pf = vsi->back; 3884 int ret = 0; 3885 3886 if (test_bit(__I40E_RESET_RECOVERY_PENDING, pf->state) || 3887 test_bit(__I40E_RESET_INTR_RECEIVED, pf->state)) 3888 return -EBUSY; 3889 3890 if (test_bit(__I40E_FD_FLUSH_REQUESTED, pf->state)) 3891 return -EBUSY; 3892 3893 ret = i40e_update_ethtool_fdir_entry(vsi, NULL, fsp->location, cmd); 3894 3895 i40e_prune_flex_pit_list(pf); 3896 3897 i40e_fdir_check_and_reenable(pf); 3898 return ret; 3899} 3900 3901/** 3902 * i40e_unused_pit_index - Find an unused PIT index for given list 3903 * @pf: the PF data structure 3904 * 3905 * Find the first unused flexible PIT index entry. We search both the L3 and 3906 * L4 flexible PIT lists so that the returned index is unique and unused by 3907 * either currently programmed L3 or L4 filters. We use a bit field as storage 3908 * to track which indexes are already used. 3909 **/ 3910static u8 i40e_unused_pit_index(struct i40e_pf *pf) 3911{ 3912 unsigned long available_index = 0xFF; 3913 struct i40e_flex_pit *entry; 3914 3915 /* We need to make sure that the new index isn't in use by either L3 3916 * or L4 filters so that IP_USER_FLOW filters can program both L3 and 3917 * L4 to use the same index. 3918 */ 3919 3920 list_for_each_entry(entry, &pf->l4_flex_pit_list, list) 3921 clear_bit(entry->pit_index, &available_index); 3922 3923 list_for_each_entry(entry, &pf->l3_flex_pit_list, list) 3924 clear_bit(entry->pit_index, &available_index); 3925 3926 return find_first_bit(&available_index, 8); 3927} 3928 3929/** 3930 * i40e_find_flex_offset - Find an existing flex src_offset 3931 * @flex_pit_list: L3 or L4 flex PIT list 3932 * @src_offset: new src_offset to find 3933 * 3934 * Searches the flex_pit_list for an existing offset. If no offset is 3935 * currently programmed, then this will return an ERR_PTR if there is no space 3936 * to add a new offset, otherwise it returns NULL. 3937 **/ 3938static 3939struct i40e_flex_pit *i40e_find_flex_offset(struct list_head *flex_pit_list, 3940 u16 src_offset) 3941{ 3942 struct i40e_flex_pit *entry; 3943 int size = 0; 3944 3945 /* Search for the src_offset first. If we find a matching entry 3946 * already programmed, we can simply re-use it. 3947 */ 3948 list_for_each_entry(entry, flex_pit_list, list) { 3949 size++; 3950 if (entry->src_offset == src_offset) 3951 return entry; 3952 } 3953 3954 /* If we haven't found an entry yet, then the provided src offset has 3955 * not yet been programmed. We will program the src offset later on, 3956 * but we need to indicate whether there is enough space to do so 3957 * here. We'll make use of ERR_PTR for this purpose. 3958 */ 3959 if (size >= I40E_FLEX_PIT_TABLE_SIZE) 3960 return ERR_PTR(-ENOSPC); 3961 3962 return NULL; 3963} 3964 3965/** 3966 * i40e_add_flex_offset - Add src_offset to flex PIT table list 3967 * @flex_pit_list: L3 or L4 flex PIT list 3968 * @src_offset: new src_offset to add 3969 * @pit_index: the PIT index to program 3970 * 3971 * This function programs the new src_offset to the list. It is expected that 3972 * i40e_find_flex_offset has already been tried and returned NULL, indicating 3973 * that this offset is not programmed, and that the list has enough space to 3974 * store another offset. 3975 * 3976 * Returns 0 on success, and negative value on error. 3977 **/ 3978static int i40e_add_flex_offset(struct list_head *flex_pit_list, 3979 u16 src_offset, 3980 u8 pit_index) 3981{ 3982 struct i40e_flex_pit *new_pit, *entry; 3983 3984 new_pit = kzalloc(sizeof(*entry), GFP_KERNEL); 3985 if (!new_pit) 3986 return -ENOMEM; 3987 3988 new_pit->src_offset = src_offset; 3989 new_pit->pit_index = pit_index; 3990 3991 /* We need to insert this item such that the list is sorted by 3992 * src_offset in ascending order. 3993 */ 3994 list_for_each_entry(entry, flex_pit_list, list) { 3995 if (new_pit->src_offset < entry->src_offset) { 3996 list_add_tail(&new_pit->list, &entry->list); 3997 return 0; 3998 } 3999 4000 /* If we found an entry with our offset already programmed we 4001 * can simply return here, after freeing the memory. However, 4002 * if the pit_index does not match we need to report an error. 4003 */ 4004 if (new_pit->src_offset == entry->src_offset) { 4005 int err = 0; 4006 4007 /* If the PIT index is not the same we can't re-use 4008 * the entry, so we must report an error. 4009 */ 4010 if (new_pit->pit_index != entry->pit_index) 4011 err = -EINVAL; 4012 4013 kfree(new_pit); 4014 return err; 4015 } 4016 } 4017 4018 /* If we reached here, then we haven't yet added the item. This means 4019 * that we should add the item at the end of the list. 4020 */ 4021 list_add_tail(&new_pit->list, flex_pit_list); 4022 return 0; 4023} 4024 4025/** 4026 * __i40e_reprogram_flex_pit - Re-program specific FLX_PIT table 4027 * @pf: Pointer to the PF structure 4028 * @flex_pit_list: list of flexible src offsets in use 4029 * @flex_pit_start: index to first entry for this section of the table 4030 * 4031 * In order to handle flexible data, the hardware uses a table of values 4032 * called the FLX_PIT table. This table is used to indicate which sections of 4033 * the input correspond to what PIT index values. Unfortunately, hardware is 4034 * very restrictive about programming this table. Entries must be ordered by 4035 * src_offset in ascending order, without duplicates. Additionally, unused 4036 * entries must be set to the unused index value, and must have valid size and 4037 * length according to the src_offset ordering. 4038 * 4039 * This function will reprogram the FLX_PIT register from a book-keeping 4040 * structure that we guarantee is already ordered correctly, and has no more 4041 * than 3 entries. 4042 * 4043 * To make things easier, we only support flexible values of one word length, 4044 * rather than allowing variable length flexible values. 4045 **/ 4046static void __i40e_reprogram_flex_pit(struct i40e_pf *pf, 4047 struct list_head *flex_pit_list, 4048 int flex_pit_start) 4049{ 4050 struct i40e_flex_pit *entry = NULL; 4051 u16 last_offset = 0; 4052 int i = 0, j = 0; 4053 4054 /* First, loop over the list of flex PIT entries, and reprogram the 4055 * registers. 4056 */ 4057 list_for_each_entry(entry, flex_pit_list, list) { 4058 /* We have to be careful when programming values for the 4059 * largest SRC_OFFSET value. It is possible that adding 4060 * additional empty values at the end would overflow the space 4061 * for the SRC_OFFSET in the FLX_PIT register. To avoid this, 4062 * we check here and add the empty values prior to adding the 4063 * largest value. 4064 * 4065 * To determine this, we will use a loop from i+1 to 3, which 4066 * will determine whether the unused entries would have valid 4067 * SRC_OFFSET. Note that there cannot be extra entries past 4068 * this value, because the only valid values would have been 4069 * larger than I40E_MAX_FLEX_SRC_OFFSET, and thus would not 4070 * have been added to the list in the first place. 4071 */ 4072 for (j = i + 1; j < 3; j++) { 4073 u16 offset = entry->src_offset + j; 4074 int index = flex_pit_start + i; 4075 u32 value = I40E_FLEX_PREP_VAL(I40E_FLEX_DEST_UNUSED, 4076 1, 4077 offset - 3); 4078 4079 if (offset > I40E_MAX_FLEX_SRC_OFFSET) { 4080 i40e_write_rx_ctl(&pf->hw, 4081 I40E_PRTQF_FLX_PIT(index), 4082 value); 4083 i++; 4084 } 4085 } 4086 4087 /* Now, we can program the actual value into the table */ 4088 i40e_write_rx_ctl(&pf->hw, 4089 I40E_PRTQF_FLX_PIT(flex_pit_start + i), 4090 I40E_FLEX_PREP_VAL(entry->pit_index + 50, 4091 1, 4092 entry->src_offset)); 4093 i++; 4094 } 4095 4096 /* In order to program the last entries in the table, we need to 4097 * determine the valid offset. If the list is empty, we'll just start 4098 * with 0. Otherwise, we'll start with the last item offset and add 1. 4099 * This ensures that all entries have valid sizes. If we don't do this 4100 * correctly, the hardware will disable flexible field parsing. 4101 */ 4102 if (!list_empty(flex_pit_list)) 4103 last_offset = list_prev_entry(entry, list)->src_offset + 1; 4104 4105 for (; i < 3; i++, last_offset++) { 4106 i40e_write_rx_ctl(&pf->hw, 4107 I40E_PRTQF_FLX_PIT(flex_pit_start + i), 4108 I40E_FLEX_PREP_VAL(I40E_FLEX_DEST_UNUSED, 4109 1, 4110 last_offset)); 4111 } 4112} 4113 4114/** 4115 * i40e_reprogram_flex_pit - Reprogram all FLX_PIT tables after input set change 4116 * @pf: pointer to the PF structure 4117 * 4118 * This function reprograms both the L3 and L4 FLX_PIT tables. See the 4119 * internal helper function for implementation details. 4120 **/ 4121static void i40e_reprogram_flex_pit(struct i40e_pf *pf) 4122{ 4123 __i40e_reprogram_flex_pit(pf, &pf->l3_flex_pit_list, 4124 I40E_FLEX_PIT_IDX_START_L3); 4125 4126 __i40e_reprogram_flex_pit(pf, &pf->l4_flex_pit_list, 4127 I40E_FLEX_PIT_IDX_START_L4); 4128 4129 /* We also need to program the L3 and L4 GLQF ORT register */ 4130 i40e_write_rx_ctl(&pf->hw, 4131 I40E_GLQF_ORT(I40E_L3_GLQF_ORT_IDX), 4132 I40E_ORT_PREP_VAL(I40E_FLEX_PIT_IDX_START_L3, 4133 3, 1)); 4134 4135 i40e_write_rx_ctl(&pf->hw, 4136 I40E_GLQF_ORT(I40E_L4_GLQF_ORT_IDX), 4137 I40E_ORT_PREP_VAL(I40E_FLEX_PIT_IDX_START_L4, 4138 3, 1)); 4139} 4140 4141/** 4142 * i40e_flow_str - Converts a flow_type into a human readable string 4143 * @fsp: the flow specification 4144 * 4145 * Currently only flow types we support are included here, and the string 4146 * value attempts to match what ethtool would use to configure this flow type. 4147 **/ 4148static const char *i40e_flow_str(struct ethtool_rx_flow_spec *fsp) 4149{ 4150 switch (fsp->flow_type & ~FLOW_EXT) { 4151 case TCP_V4_FLOW: 4152 return "tcp4"; 4153 case UDP_V4_FLOW: 4154 return "udp4"; 4155 case SCTP_V4_FLOW: 4156 return "sctp4"; 4157 case IP_USER_FLOW: 4158 return "ip4"; 4159 case TCP_V6_FLOW: 4160 return "tcp6"; 4161 case UDP_V6_FLOW: 4162 return "udp6"; 4163 case SCTP_V6_FLOW: 4164 return "sctp6"; 4165 case IPV6_USER_FLOW: 4166 return "ip6"; 4167 default: 4168 return "unknown"; 4169 } 4170} 4171 4172/** 4173 * i40e_pit_index_to_mask - Return the FLEX mask for a given PIT index 4174 * @pit_index: PIT index to convert 4175 * 4176 * Returns the mask for a given PIT index. Will return 0 if the pit_index is 4177 * of range. 4178 **/ 4179static u64 i40e_pit_index_to_mask(int pit_index) 4180{ 4181 switch (pit_index) { 4182 case 0: 4183 return I40E_FLEX_50_MASK; 4184 case 1: 4185 return I40E_FLEX_51_MASK; 4186 case 2: 4187 return I40E_FLEX_52_MASK; 4188 case 3: 4189 return I40E_FLEX_53_MASK; 4190 case 4: 4191 return I40E_FLEX_54_MASK; 4192 case 5: 4193 return I40E_FLEX_55_MASK; 4194 case 6: 4195 return I40E_FLEX_56_MASK; 4196 case 7: 4197 return I40E_FLEX_57_MASK; 4198 default: 4199 return 0; 4200 } 4201} 4202 4203/** 4204 * i40e_print_input_set - Show changes between two input sets 4205 * @vsi: the vsi being configured 4206 * @old: the old input set 4207 * @new: the new input set 4208 * 4209 * Print the difference between old and new input sets by showing which series 4210 * of words are toggled on or off. Only displays the bits we actually support 4211 * changing. 4212 **/ 4213static void i40e_print_input_set(struct i40e_vsi *vsi, u64 old, u64 new) 4214{ 4215 struct i40e_pf *pf = vsi->back; 4216 bool old_value, new_value; 4217 int i; 4218 4219 old_value = !!(old & I40E_L3_SRC_MASK); 4220 new_value = !!(new & I40E_L3_SRC_MASK); 4221 if (old_value != new_value) 4222 netif_info(pf, drv, vsi->netdev, "L3 source address: %s -> %s\n", 4223 old_value ? "ON" : "OFF", 4224 new_value ? "ON" : "OFF"); 4225 4226 old_value = !!(old & I40E_L3_DST_MASK); 4227 new_value = !!(new & I40E_L3_DST_MASK); 4228 if (old_value != new_value) 4229 netif_info(pf, drv, vsi->netdev, "L3 destination address: %s -> %s\n", 4230 old_value ? "ON" : "OFF", 4231 new_value ? "ON" : "OFF"); 4232 4233 old_value = !!(old & I40E_L4_SRC_MASK); 4234 new_value = !!(new & I40E_L4_SRC_MASK); 4235 if (old_value != new_value) 4236 netif_info(pf, drv, vsi->netdev, "L4 source port: %s -> %s\n", 4237 old_value ? "ON" : "OFF", 4238 new_value ? "ON" : "OFF"); 4239 4240 old_value = !!(old & I40E_L4_DST_MASK); 4241 new_value = !!(new & I40E_L4_DST_MASK); 4242 if (old_value != new_value) 4243 netif_info(pf, drv, vsi->netdev, "L4 destination port: %s -> %s\n", 4244 old_value ? "ON" : "OFF", 4245 new_value ? "ON" : "OFF"); 4246 4247 old_value = !!(old & I40E_VERIFY_TAG_MASK); 4248 new_value = !!(new & I40E_VERIFY_TAG_MASK); 4249 if (old_value != new_value) 4250 netif_info(pf, drv, vsi->netdev, "SCTP verification tag: %s -> %s\n", 4251 old_value ? "ON" : "OFF", 4252 new_value ? "ON" : "OFF"); 4253 4254 /* Show change of flexible filter entries */ 4255 for (i = 0; i < I40E_FLEX_INDEX_ENTRIES; i++) { 4256 u64 flex_mask = i40e_pit_index_to_mask(i); 4257 4258 old_value = !!(old & flex_mask); 4259 new_value = !!(new & flex_mask); 4260 if (old_value != new_value) 4261 netif_info(pf, drv, vsi->netdev, "FLEX index %d: %s -> %s\n", 4262 i, 4263 old_value ? "ON" : "OFF", 4264 new_value ? "ON" : "OFF"); 4265 } 4266 4267 netif_info(pf, drv, vsi->netdev, " Current input set: %0llx\n", 4268 old); 4269 netif_info(pf, drv, vsi->netdev, "Requested input set: %0llx\n", 4270 new); 4271} 4272 4273/** 4274 * i40e_check_fdir_input_set - Check that a given rx_flow_spec mask is valid 4275 * @vsi: pointer to the targeted VSI 4276 * @fsp: pointer to Rx flow specification 4277 * @userdef: userdefined data from flow specification 4278 * 4279 * Ensures that a given ethtool_rx_flow_spec has a valid mask. Some support 4280 * for partial matches exists with a few limitations. First, hardware only 4281 * supports masking by word boundary (2 bytes) and not per individual bit. 4282 * Second, hardware is limited to using one mask for a flow type and cannot 4283 * use a separate mask for each filter. 4284 * 4285 * To support these limitations, if we already have a configured filter for 4286 * the specified type, this function enforces that new filters of the type 4287 * match the configured input set. Otherwise, if we do not have a filter of 4288 * the specified type, we allow the input set to be updated to match the 4289 * desired filter. 4290 * 4291 * To help ensure that administrators understand why filters weren't displayed 4292 * as supported, we print a diagnostic message displaying how the input set 4293 * would change and warning to delete the preexisting filters if required. 4294 * 4295 * Returns 0 on successful input set match, and a negative return code on 4296 * failure. 4297 **/ 4298static int i40e_check_fdir_input_set(struct i40e_vsi *vsi, 4299 struct ethtool_rx_flow_spec *fsp, 4300 struct i40e_rx_flow_userdef *userdef) 4301{ 4302 static const __be32 ipv6_full_mask[4] = {cpu_to_be32(0xffffffff), 4303 cpu_to_be32(0xffffffff), cpu_to_be32(0xffffffff), 4304 cpu_to_be32(0xffffffff)}; 4305 struct ethtool_tcpip6_spec *tcp_ip6_spec; 4306 struct ethtool_usrip6_spec *usr_ip6_spec; 4307 struct ethtool_tcpip4_spec *tcp_ip4_spec; 4308 struct ethtool_usrip4_spec *usr_ip4_spec; 4309 struct i40e_pf *pf = vsi->back; 4310 u64 current_mask, new_mask; 4311 bool new_flex_offset = false; 4312 bool flex_l3 = false; 4313 u16 *fdir_filter_count; 4314 u16 index, src_offset = 0; 4315 u8 pit_index = 0; 4316 int err; 4317 4318 switch (fsp->flow_type & ~FLOW_EXT) { 4319 case SCTP_V4_FLOW: 4320 index = I40E_FILTER_PCTYPE_NONF_IPV4_SCTP; 4321 fdir_filter_count = &pf->fd_sctp4_filter_cnt; 4322 break; 4323 case TCP_V4_FLOW: 4324 index = I40E_FILTER_PCTYPE_NONF_IPV4_TCP; 4325 fdir_filter_count = &pf->fd_tcp4_filter_cnt; 4326 break; 4327 case UDP_V4_FLOW: 4328 index = I40E_FILTER_PCTYPE_NONF_IPV4_UDP; 4329 fdir_filter_count = &pf->fd_udp4_filter_cnt; 4330 break; 4331 case SCTP_V6_FLOW: 4332 index = I40E_FILTER_PCTYPE_NONF_IPV6_SCTP; 4333 fdir_filter_count = &pf->fd_sctp6_filter_cnt; 4334 break; 4335 case TCP_V6_FLOW: 4336 index = I40E_FILTER_PCTYPE_NONF_IPV6_TCP; 4337 fdir_filter_count = &pf->fd_tcp6_filter_cnt; 4338 break; 4339 case UDP_V6_FLOW: 4340 index = I40E_FILTER_PCTYPE_NONF_IPV6_UDP; 4341 fdir_filter_count = &pf->fd_udp6_filter_cnt; 4342 break; 4343 case IP_USER_FLOW: 4344 index = I40E_FILTER_PCTYPE_NONF_IPV4_OTHER; 4345 fdir_filter_count = &pf->fd_ip4_filter_cnt; 4346 flex_l3 = true; 4347 break; 4348 case IPV6_USER_FLOW: 4349 index = I40E_FILTER_PCTYPE_NONF_IPV6_OTHER; 4350 fdir_filter_count = &pf->fd_ip6_filter_cnt; 4351 flex_l3 = true; 4352 break; 4353 default: 4354 return -EOPNOTSUPP; 4355 } 4356 4357 /* Read the current input set from register memory. */ 4358 current_mask = i40e_read_fd_input_set(pf, index); 4359 new_mask = current_mask; 4360 4361 /* Determine, if any, the required changes to the input set in order 4362 * to support the provided mask. 4363 * 4364 * Hardware only supports masking at word (2 byte) granularity and does 4365 * not support full bitwise masking. This implementation simplifies 4366 * even further and only supports fully enabled or fully disabled 4367 * masks for each field, even though we could split the ip4src and 4368 * ip4dst fields. 4369 */ 4370 switch (fsp->flow_type & ~FLOW_EXT) { 4371 case SCTP_V4_FLOW: 4372 new_mask &= ~I40E_VERIFY_TAG_MASK; 4373 fallthrough; 4374 case TCP_V4_FLOW: 4375 case UDP_V4_FLOW: 4376 tcp_ip4_spec = &fsp->m_u.tcp_ip4_spec; 4377 4378 /* IPv4 source address */ 4379 if (tcp_ip4_spec->ip4src == htonl(0xFFFFFFFF)) 4380 new_mask |= I40E_L3_SRC_MASK; 4381 else if (!tcp_ip4_spec->ip4src) 4382 new_mask &= ~I40E_L3_SRC_MASK; 4383 else 4384 return -EOPNOTSUPP; 4385 4386 /* IPv4 destination address */ 4387 if (tcp_ip4_spec->ip4dst == htonl(0xFFFFFFFF)) 4388 new_mask |= I40E_L3_DST_MASK; 4389 else if (!tcp_ip4_spec->ip4dst) 4390 new_mask &= ~I40E_L3_DST_MASK; 4391 else 4392 return -EOPNOTSUPP; 4393 4394 /* L4 source port */ 4395 if (tcp_ip4_spec->psrc == htons(0xFFFF)) 4396 new_mask |= I40E_L4_SRC_MASK; 4397 else if (!tcp_ip4_spec->psrc) 4398 new_mask &= ~I40E_L4_SRC_MASK; 4399 else 4400 return -EOPNOTSUPP; 4401 4402 /* L4 destination port */ 4403 if (tcp_ip4_spec->pdst == htons(0xFFFF)) 4404 new_mask |= I40E_L4_DST_MASK; 4405 else if (!tcp_ip4_spec->pdst) 4406 new_mask &= ~I40E_L4_DST_MASK; 4407 else 4408 return -EOPNOTSUPP; 4409 4410 /* Filtering on Type of Service is not supported. */ 4411 if (tcp_ip4_spec->tos) 4412 return -EOPNOTSUPP; 4413 4414 break; 4415 case SCTP_V6_FLOW: 4416 new_mask &= ~I40E_VERIFY_TAG_MASK; 4417 fallthrough; 4418 case TCP_V6_FLOW: 4419 case UDP_V6_FLOW: 4420 tcp_ip6_spec = &fsp->m_u.tcp_ip6_spec; 4421 4422 /* Check if user provided IPv6 source address. */ 4423 if (ipv6_addr_equal((struct in6_addr *)&tcp_ip6_spec->ip6src, 4424 (struct in6_addr *)&ipv6_full_mask)) 4425 new_mask |= I40E_L3_V6_SRC_MASK; 4426 else if (ipv6_addr_any((struct in6_addr *) 4427 &tcp_ip6_spec->ip6src)) 4428 new_mask &= ~I40E_L3_V6_SRC_MASK; 4429 else 4430 return -EOPNOTSUPP; 4431 4432 /* Check if user provided destination address. */ 4433 if (ipv6_addr_equal((struct in6_addr *)&tcp_ip6_spec->ip6dst, 4434 (struct in6_addr *)&ipv6_full_mask)) 4435 new_mask |= I40E_L3_V6_DST_MASK; 4436 else if (ipv6_addr_any((struct in6_addr *) 4437 &tcp_ip6_spec->ip6dst)) 4438 new_mask &= ~I40E_L3_V6_DST_MASK; 4439 else 4440 return -EOPNOTSUPP; 4441 4442 /* L4 source port */ 4443 if (tcp_ip6_spec->psrc == htons(0xFFFF)) 4444 new_mask |= I40E_L4_SRC_MASK; 4445 else if (!tcp_ip6_spec->psrc) 4446 new_mask &= ~I40E_L4_SRC_MASK; 4447 else 4448 return -EOPNOTSUPP; 4449 4450 /* L4 destination port */ 4451 if (tcp_ip6_spec->pdst == htons(0xFFFF)) 4452 new_mask |= I40E_L4_DST_MASK; 4453 else if (!tcp_ip6_spec->pdst) 4454 new_mask &= ~I40E_L4_DST_MASK; 4455 else 4456 return -EOPNOTSUPP; 4457 4458 /* Filtering on Traffic Classes is not supported. */ 4459 if (tcp_ip6_spec->tclass) 4460 return -EOPNOTSUPP; 4461 break; 4462 case IP_USER_FLOW: 4463 usr_ip4_spec = &fsp->m_u.usr_ip4_spec; 4464 4465 /* IPv4 source address */ 4466 if (usr_ip4_spec->ip4src == htonl(0xFFFFFFFF)) 4467 new_mask |= I40E_L3_SRC_MASK; 4468 else if (!usr_ip4_spec->ip4src) 4469 new_mask &= ~I40E_L3_SRC_MASK; 4470 else 4471 return -EOPNOTSUPP; 4472 4473 /* IPv4 destination address */ 4474 if (usr_ip4_spec->ip4dst == htonl(0xFFFFFFFF)) 4475 new_mask |= I40E_L3_DST_MASK; 4476 else if (!usr_ip4_spec->ip4dst) 4477 new_mask &= ~I40E_L3_DST_MASK; 4478 else 4479 return -EOPNOTSUPP; 4480 4481 /* First 4 bytes of L4 header */ 4482 if (usr_ip4_spec->l4_4_bytes) 4483 return -EOPNOTSUPP; 4484 4485 /* Filtering on Type of Service is not supported. */ 4486 if (usr_ip4_spec->tos) 4487 return -EOPNOTSUPP; 4488 4489 /* Filtering on IP version is not supported */ 4490 if (usr_ip4_spec->ip_ver) 4491 return -EINVAL; 4492 4493 /* Filtering on L4 protocol is not supported */ 4494 if (usr_ip4_spec->proto) 4495 return -EINVAL; 4496 4497 break; 4498 case IPV6_USER_FLOW: 4499 usr_ip6_spec = &fsp->m_u.usr_ip6_spec; 4500 4501 /* Check if user provided IPv6 source address. */ 4502 if (ipv6_addr_equal((struct in6_addr *)&usr_ip6_spec->ip6src, 4503 (struct in6_addr *)&ipv6_full_mask)) 4504 new_mask |= I40E_L3_V6_SRC_MASK; 4505 else if (ipv6_addr_any((struct in6_addr *) 4506 &usr_ip6_spec->ip6src)) 4507 new_mask &= ~I40E_L3_V6_SRC_MASK; 4508 else 4509 return -EOPNOTSUPP; 4510 4511 /* Check if user provided destination address. */ 4512 if (ipv6_addr_equal((struct in6_addr *)&usr_ip6_spec->ip6dst, 4513 (struct in6_addr *)&ipv6_full_mask)) 4514 new_mask |= I40E_L3_V6_DST_MASK; 4515 else if (ipv6_addr_any((struct in6_addr *) 4516 &usr_ip6_spec->ip6dst)) 4517 new_mask &= ~I40E_L3_V6_DST_MASK; 4518 else 4519 return -EOPNOTSUPP; 4520 4521 if (usr_ip6_spec->l4_4_bytes) 4522 return -EOPNOTSUPP; 4523 4524 /* Filtering on Traffic class is not supported. */ 4525 if (usr_ip6_spec->tclass) 4526 return -EOPNOTSUPP; 4527 4528 /* Filtering on L4 protocol is not supported */ 4529 if (usr_ip6_spec->l4_proto) 4530 return -EINVAL; 4531 4532 break; 4533 default: 4534 return -EOPNOTSUPP; 4535 } 4536 4537 if (fsp->flow_type & FLOW_EXT) { 4538 /* Allow only 802.1Q and no etype defined, as 4539 * later it's modified to 0x8100 4540 */ 4541 if (fsp->h_ext.vlan_etype != htons(ETH_P_8021Q) && 4542 fsp->h_ext.vlan_etype != 0) 4543 return -EOPNOTSUPP; 4544 if (fsp->m_ext.vlan_tci == htons(0xFFFF)) 4545 new_mask |= I40E_VLAN_SRC_MASK; 4546 else 4547 new_mask &= ~I40E_VLAN_SRC_MASK; 4548 } 4549 4550 /* First, clear all flexible filter entries */ 4551 new_mask &= ~I40E_FLEX_INPUT_MASK; 4552 4553 /* If we have a flexible filter, try to add this offset to the correct 4554 * flexible filter PIT list. Once finished, we can update the mask. 4555 * If the src_offset changed, we will get a new mask value which will 4556 * trigger an input set change. 4557 */ 4558 if (userdef->flex_filter) { 4559 struct i40e_flex_pit *l3_flex_pit = NULL, *flex_pit = NULL; 4560 4561 /* Flexible offset must be even, since the flexible payload 4562 * must be aligned on 2-byte boundary. 4563 */ 4564 if (userdef->flex_offset & 0x1) { 4565 dev_warn(&pf->pdev->dev, 4566 "Flexible data offset must be 2-byte aligned\n"); 4567 return -EINVAL; 4568 } 4569 4570 src_offset = userdef->flex_offset >> 1; 4571 4572 /* FLX_PIT source offset value is only so large */ 4573 if (src_offset > I40E_MAX_FLEX_SRC_OFFSET) { 4574 dev_warn(&pf->pdev->dev, 4575 "Flexible data must reside within first 64 bytes of the packet payload\n"); 4576 return -EINVAL; 4577 } 4578 4579 /* See if this offset has already been programmed. If we get 4580 * an ERR_PTR, then the filter is not safe to add. Otherwise, 4581 * if we get a NULL pointer, this means we will need to add 4582 * the offset. 4583 */ 4584 flex_pit = i40e_find_flex_offset(&pf->l4_flex_pit_list, 4585 src_offset); 4586 if (IS_ERR(flex_pit)) 4587 return PTR_ERR(flex_pit); 4588 4589 /* IP_USER_FLOW filters match both L4 (ICMP) and L3 (unknown) 4590 * packet types, and thus we need to program both L3 and L4 4591 * flexible values. These must have identical flexible index, 4592 * as otherwise we can't correctly program the input set. So 4593 * we'll find both an L3 and L4 index and make sure they are 4594 * the same. 4595 */ 4596 if (flex_l3) { 4597 l3_flex_pit = 4598 i40e_find_flex_offset(&pf->l3_flex_pit_list, 4599 src_offset); 4600 if (IS_ERR(l3_flex_pit)) 4601 return PTR_ERR(l3_flex_pit); 4602 4603 if (flex_pit) { 4604 /* If we already had a matching L4 entry, we 4605 * need to make sure that the L3 entry we 4606 * obtained uses the same index. 4607 */ 4608 if (l3_flex_pit) { 4609 if (l3_flex_pit->pit_index != 4610 flex_pit->pit_index) { 4611 return -EINVAL; 4612 } 4613 } else { 4614 new_flex_offset = true; 4615 } 4616 } else { 4617 flex_pit = l3_flex_pit; 4618 } 4619 } 4620 4621 /* If we didn't find an existing flex offset, we need to 4622 * program a new one. However, we don't immediately program it 4623 * here because we will wait to program until after we check 4624 * that it is safe to change the input set. 4625 */ 4626 if (!flex_pit) { 4627 new_flex_offset = true; 4628 pit_index = i40e_unused_pit_index(pf); 4629 } else { 4630 pit_index = flex_pit->pit_index; 4631 } 4632 4633 /* Update the mask with the new offset */ 4634 new_mask |= i40e_pit_index_to_mask(pit_index); 4635 } 4636 4637 /* If the mask and flexible filter offsets for this filter match the 4638 * currently programmed values we don't need any input set change, so 4639 * this filter is safe to install. 4640 */ 4641 if (new_mask == current_mask && !new_flex_offset) 4642 return 0; 4643 4644 netif_info(pf, drv, vsi->netdev, "Input set change requested for %s flows:\n", 4645 i40e_flow_str(fsp)); 4646 i40e_print_input_set(vsi, current_mask, new_mask); 4647 if (new_flex_offset) { 4648 netif_info(pf, drv, vsi->netdev, "FLEX index %d: Offset -> %d", 4649 pit_index, src_offset); 4650 } 4651 4652 /* Hardware input sets are global across multiple ports, so even the 4653 * main port cannot change them when in MFP mode as this would impact 4654 * any filters on the other ports. 4655 */ 4656 if (test_bit(I40E_FLAG_MFP_ENA, pf->flags)) { 4657 netif_err(pf, drv, vsi->netdev, "Cannot change Flow Director input sets while MFP is enabled\n"); 4658 return -EOPNOTSUPP; 4659 } 4660 4661 /* This filter requires us to update the input set. However, hardware 4662 * only supports one input set per flow type, and does not support 4663 * separate masks for each filter. This means that we can only support 4664 * a single mask for all filters of a specific type. 4665 * 4666 * If we have preexisting filters, they obviously depend on the 4667 * current programmed input set. Display a diagnostic message in this 4668 * case explaining why the filter could not be accepted. 4669 */ 4670 if (*fdir_filter_count) { 4671 netif_err(pf, drv, vsi->netdev, "Cannot change input set for %s flows until %d preexisting filters are removed\n", 4672 i40e_flow_str(fsp), 4673 *fdir_filter_count); 4674 return -EOPNOTSUPP; 4675 } 4676 4677 i40e_write_fd_input_set(pf, index, new_mask); 4678 4679 /* IP_USER_FLOW filters match both IPv4/Other and IPv4/Fragmented 4680 * frames. If we're programming the input set for IPv4/Other, we also 4681 * need to program the IPv4/Fragmented input set. Since we don't have 4682 * separate support, we'll always assume and enforce that the two flow 4683 * types must have matching input sets. 4684 */ 4685 if (index == I40E_FILTER_PCTYPE_NONF_IPV4_OTHER) 4686 i40e_write_fd_input_set(pf, I40E_FILTER_PCTYPE_FRAG_IPV4, 4687 new_mask); 4688 4689 /* Add the new offset and update table, if necessary */ 4690 if (new_flex_offset) { 4691 err = i40e_add_flex_offset(&pf->l4_flex_pit_list, src_offset, 4692 pit_index); 4693 if (err) 4694 return err; 4695 4696 if (flex_l3) { 4697 err = i40e_add_flex_offset(&pf->l3_flex_pit_list, 4698 src_offset, 4699 pit_index); 4700 if (err) 4701 return err; 4702 } 4703 4704 i40e_reprogram_flex_pit(pf); 4705 } 4706 4707 return 0; 4708} 4709 4710/** 4711 * i40e_match_fdir_filter - Return true of two filters match 4712 * @a: pointer to filter struct 4713 * @b: pointer to filter struct 4714 * 4715 * Returns true if the two filters match exactly the same criteria. I.e. they 4716 * match the same flow type and have the same parameters. We don't need to 4717 * check any input-set since all filters of the same flow type must use the 4718 * same input set. 4719 **/ 4720static bool i40e_match_fdir_filter(struct i40e_fdir_filter *a, 4721 struct i40e_fdir_filter *b) 4722{ 4723 /* The filters do not much if any of these criteria differ. */ 4724 if (a->dst_ip != b->dst_ip || 4725 a->src_ip != b->src_ip || 4726 a->dst_port != b->dst_port || 4727 a->src_port != b->src_port || 4728 a->flow_type != b->flow_type || 4729 a->ipl4_proto != b->ipl4_proto || 4730 a->vlan_tag != b->vlan_tag || 4731 a->vlan_etype != b->vlan_etype) 4732 return false; 4733 4734 return true; 4735} 4736 4737/** 4738 * i40e_disallow_matching_filters - Check that new filters differ 4739 * @vsi: pointer to the targeted VSI 4740 * @input: new filter to check 4741 * 4742 * Due to hardware limitations, it is not possible for two filters that match 4743 * similar criteria to be programmed at the same time. This is true for a few 4744 * reasons: 4745 * 4746 * (a) all filters matching a particular flow type must use the same input 4747 * set, that is they must match the same criteria. 4748 * (b) different flow types will never match the same packet, as the flow type 4749 * is decided by hardware before checking which rules apply. 4750 * (c) hardware has no way to distinguish which order filters apply in. 4751 * 4752 * Due to this, we can't really support using the location data to order 4753 * filters in the hardware parsing. It is technically possible for the user to 4754 * request two filters matching the same criteria but which select different 4755 * queues. In this case, rather than keep both filters in the list, we reject 4756 * the 2nd filter when the user requests adding it. 4757 * 4758 * This avoids needing to track location for programming the filter to 4759 * hardware, and ensures that we avoid some strange scenarios involving 4760 * deleting filters which match the same criteria. 4761 **/ 4762static int i40e_disallow_matching_filters(struct i40e_vsi *vsi, 4763 struct i40e_fdir_filter *input) 4764{ 4765 struct i40e_pf *pf = vsi->back; 4766 struct i40e_fdir_filter *rule; 4767 struct hlist_node *node2; 4768 4769 /* Loop through every filter, and check that it doesn't match */ 4770 hlist_for_each_entry_safe(rule, node2, 4771 &pf->fdir_filter_list, fdir_node) { 4772 /* Don't check the filters match if they share the same fd_id, 4773 * since the new filter is actually just updating the target 4774 * of the old filter. 4775 */ 4776 if (rule->fd_id == input->fd_id) 4777 continue; 4778 4779 /* If any filters match, then print a warning message to the 4780 * kernel message buffer and bail out. 4781 */ 4782 if (i40e_match_fdir_filter(rule, input)) { 4783 dev_warn(&pf->pdev->dev, 4784 "Existing user defined filter %d already matches this flow.\n", 4785 rule->fd_id); 4786 return -EINVAL; 4787 } 4788 } 4789 4790 return 0; 4791} 4792 4793/** 4794 * i40e_add_fdir_ethtool - Add/Remove Flow Director filters 4795 * @vsi: pointer to the targeted VSI 4796 * @cmd: command to get or set RX flow classification rules 4797 * 4798 * Add Flow Director filters for a specific flow spec based on their 4799 * protocol. Returns 0 if the filters were successfully added. 4800 **/ 4801static int i40e_add_fdir_ethtool(struct i40e_vsi *vsi, 4802 struct ethtool_rxnfc *cmd) 4803{ 4804 struct i40e_rx_flow_userdef userdef; 4805 struct ethtool_rx_flow_spec *fsp; 4806 struct i40e_fdir_filter *input; 4807 u16 dest_vsi = 0, q_index = 0; 4808 struct i40e_pf *pf; 4809 int ret = -EINVAL; 4810 u8 dest_ctl; 4811 4812 if (!vsi) 4813 return -EINVAL; 4814 pf = vsi->back; 4815 4816 if (!test_bit(I40E_FLAG_FD_SB_ENA, pf->flags)) 4817 return -EOPNOTSUPP; 4818 4819 if (test_bit(__I40E_FD_SB_AUTO_DISABLED, pf->state)) 4820 return -ENOSPC; 4821 4822 if (test_bit(__I40E_RESET_RECOVERY_PENDING, pf->state) || 4823 test_bit(__I40E_RESET_INTR_RECEIVED, pf->state)) 4824 return -EBUSY; 4825 4826 if (test_bit(__I40E_FD_FLUSH_REQUESTED, pf->state)) 4827 return -EBUSY; 4828 4829 fsp = (struct ethtool_rx_flow_spec *)&cmd->fs; 4830 4831 /* Parse the user-defined field */ 4832 if (i40e_parse_rx_flow_user_data(fsp, &userdef)) 4833 return -EINVAL; 4834 4835 /* Extended MAC field is not supported */ 4836 if (fsp->flow_type & FLOW_MAC_EXT) 4837 return -EINVAL; 4838 4839 ret = i40e_check_fdir_input_set(vsi, fsp, &userdef); 4840 if (ret) 4841 return ret; 4842 4843 if (fsp->location >= (pf->hw.func_caps.fd_filters_best_effort + 4844 pf->hw.func_caps.fd_filters_guaranteed)) { 4845 return -EINVAL; 4846 } 4847 4848 /* ring_cookie is either the drop index, or is a mask of the queue 4849 * index and VF id we wish to target. 4850 */ 4851 if (fsp->ring_cookie == RX_CLS_FLOW_DISC) { 4852 dest_ctl = I40E_FILTER_PROGRAM_DESC_DEST_DROP_PACKET; 4853 } else { 4854 u32 ring = ethtool_get_flow_spec_ring(fsp->ring_cookie); 4855 u8 vf = ethtool_get_flow_spec_ring_vf(fsp->ring_cookie); 4856 4857 if (!vf) { 4858 if (ring >= vsi->num_queue_pairs) 4859 return -EINVAL; 4860 dest_vsi = vsi->id; 4861 } else { 4862 /* VFs are zero-indexed, so we subtract one here */ 4863 vf--; 4864 4865 if (vf >= pf->num_alloc_vfs) 4866 return -EINVAL; 4867 if (ring >= pf->vf[vf].num_queue_pairs) 4868 return -EINVAL; 4869 dest_vsi = pf->vf[vf].lan_vsi_id; 4870 } 4871 dest_ctl = I40E_FILTER_PROGRAM_DESC_DEST_DIRECT_PACKET_QINDEX; 4872 q_index = ring; 4873 } 4874 4875 input = kzalloc(sizeof(*input), GFP_KERNEL); 4876 4877 if (!input) 4878 return -ENOMEM; 4879 4880 input->fd_id = fsp->location; 4881 input->q_index = q_index; 4882 input->dest_vsi = dest_vsi; 4883 input->dest_ctl = dest_ctl; 4884 input->fd_status = I40E_FILTER_PROGRAM_DESC_FD_STATUS_FD_ID; 4885 input->cnt_index = I40E_FD_SB_STAT_IDX(pf->hw.pf_id); 4886 input->dst_ip = fsp->h_u.tcp_ip4_spec.ip4src; 4887 input->src_ip = fsp->h_u.tcp_ip4_spec.ip4dst; 4888 input->flow_type = fsp->flow_type & ~FLOW_EXT; 4889 4890 input->vlan_etype = fsp->h_ext.vlan_etype; 4891 if (!fsp->m_ext.vlan_etype && fsp->h_ext.vlan_tci) 4892 input->vlan_etype = cpu_to_be16(ETH_P_8021Q); 4893 if (fsp->m_ext.vlan_tci && input->vlan_etype) 4894 input->vlan_tag = fsp->h_ext.vlan_tci; 4895 if (input->flow_type == IPV6_USER_FLOW || 4896 input->flow_type == UDP_V6_FLOW || 4897 input->flow_type == TCP_V6_FLOW || 4898 input->flow_type == SCTP_V6_FLOW) { 4899 /* Reverse the src and dest notion, since the HW expects them 4900 * to be from Tx perspective where as the input from user is 4901 * from Rx filter view. 4902 */ 4903 input->ipl4_proto = fsp->h_u.usr_ip6_spec.l4_proto; 4904 input->dst_port = fsp->h_u.tcp_ip6_spec.psrc; 4905 input->src_port = fsp->h_u.tcp_ip6_spec.pdst; 4906 memcpy(input->dst_ip6, fsp->h_u.ah_ip6_spec.ip6src, 4907 sizeof(__be32) * 4); 4908 memcpy(input->src_ip6, fsp->h_u.ah_ip6_spec.ip6dst, 4909 sizeof(__be32) * 4); 4910 } else { 4911 /* Reverse the src and dest notion, since the HW expects them 4912 * to be from Tx perspective where as the input from user is 4913 * from Rx filter view. 4914 */ 4915 input->ipl4_proto = fsp->h_u.usr_ip4_spec.proto; 4916 input->dst_port = fsp->h_u.tcp_ip4_spec.psrc; 4917 input->src_port = fsp->h_u.tcp_ip4_spec.pdst; 4918 input->dst_ip = fsp->h_u.tcp_ip4_spec.ip4src; 4919 input->src_ip = fsp->h_u.tcp_ip4_spec.ip4dst; 4920 } 4921 4922 if (userdef.flex_filter) { 4923 input->flex_filter = true; 4924 input->flex_word = cpu_to_be16(userdef.flex_word); 4925 input->flex_offset = userdef.flex_offset; 4926 } 4927 4928 /* Avoid programming two filters with identical match criteria. */ 4929 ret = i40e_disallow_matching_filters(vsi, input); 4930 if (ret) 4931 goto free_filter_memory; 4932 4933 /* Add the input filter to the fdir_input_list, possibly replacing 4934 * a previous filter. Do not free the input structure after adding it 4935 * to the list as this would cause a use-after-free bug. 4936 */ 4937 i40e_update_ethtool_fdir_entry(vsi, input, fsp->location, NULL); 4938 ret = i40e_add_del_fdir(vsi, input, true); 4939 if (ret) 4940 goto remove_sw_rule; 4941 return 0; 4942 4943remove_sw_rule: 4944 hlist_del(&input->fdir_node); 4945 pf->fdir_pf_active_filters--; 4946free_filter_memory: 4947 kfree(input); 4948 return ret; 4949} 4950 4951/** 4952 * i40e_set_rxnfc - command to set RX flow classification rules 4953 * @netdev: network interface device structure 4954 * @cmd: ethtool rxnfc command 4955 * 4956 * Returns Success if the command is supported. 4957 **/ 4958static int i40e_set_rxnfc(struct net_device *netdev, struct ethtool_rxnfc *cmd) 4959{ 4960 struct i40e_netdev_priv *np = netdev_priv(netdev); 4961 struct i40e_vsi *vsi = np->vsi; 4962 struct i40e_pf *pf = vsi->back; 4963 int ret = -EOPNOTSUPP; 4964 4965 switch (cmd->cmd) { 4966 case ETHTOOL_SRXFH: 4967 ret = i40e_set_rss_hash_opt(pf, cmd); 4968 break; 4969 case ETHTOOL_SRXCLSRLINS: 4970 ret = i40e_add_fdir_ethtool(vsi, cmd); 4971 break; 4972 case ETHTOOL_SRXCLSRLDEL: 4973 ret = i40e_del_fdir_entry(vsi, cmd); 4974 break; 4975 default: 4976 break; 4977 } 4978 4979 return ret; 4980} 4981 4982/** 4983 * i40e_max_channels - get Max number of combined channels supported 4984 * @vsi: vsi pointer 4985 **/ 4986static unsigned int i40e_max_channels(struct i40e_vsi *vsi) 4987{ 4988 /* TODO: This code assumes DCB and FD is disabled for now. */ 4989 return vsi->alloc_queue_pairs; 4990} 4991 4992/** 4993 * i40e_get_channels - Get the current channels enabled and max supported etc. 4994 * @dev: network interface device structure 4995 * @ch: ethtool channels structure 4996 * 4997 * We don't support separate tx and rx queues as channels. The other count 4998 * represents how many queues are being used for control. max_combined counts 4999 * how many queue pairs we can support. They may not be mapped 1 to 1 with 5000 * q_vectors since we support a lot more queue pairs than q_vectors. 5001 **/ 5002static void i40e_get_channels(struct net_device *dev, 5003 struct ethtool_channels *ch) 5004{ 5005 struct i40e_netdev_priv *np = netdev_priv(dev); 5006 struct i40e_vsi *vsi = np->vsi; 5007 struct i40e_pf *pf = vsi->back; 5008 5009 /* report maximum channels */ 5010 ch->max_combined = i40e_max_channels(vsi); 5011 5012 /* report info for other vector */ 5013 ch->other_count = test_bit(I40E_FLAG_FD_SB_ENA, pf->flags) ? 1 : 0; 5014 ch->max_other = ch->other_count; 5015 5016 /* Note: This code assumes DCB is disabled for now. */ 5017 ch->combined_count = vsi->num_queue_pairs; 5018} 5019 5020/** 5021 * i40e_set_channels - Set the new channels count. 5022 * @dev: network interface device structure 5023 * @ch: ethtool channels structure 5024 * 5025 * The new channels count may not be the same as requested by the user 5026 * since it gets rounded down to a power of 2 value. 5027 **/ 5028static int i40e_set_channels(struct net_device *dev, 5029 struct ethtool_channels *ch) 5030{ 5031 const u8 drop = I40E_FILTER_PROGRAM_DESC_DEST_DROP_PACKET; 5032 struct i40e_netdev_priv *np = netdev_priv(dev); 5033 unsigned int count = ch->combined_count; 5034 struct i40e_vsi *vsi = np->vsi; 5035 struct i40e_pf *pf = vsi->back; 5036 struct i40e_fdir_filter *rule; 5037 struct hlist_node *node2; 5038 int new_count; 5039 int err = 0; 5040 5041 /* We do not support setting channels for any other VSI at present */ 5042 if (vsi->type != I40E_VSI_MAIN) 5043 return -EINVAL; 5044 5045 /* We do not support setting channels via ethtool when TCs are 5046 * configured through mqprio 5047 */ 5048 if (i40e_is_tc_mqprio_enabled(pf)) 5049 return -EINVAL; 5050 5051 /* verify they are not requesting separate vectors */ 5052 if (!count || ch->rx_count || ch->tx_count) 5053 return -EINVAL; 5054 5055 /* verify other_count has not changed */ 5056 if (ch->other_count != (test_bit(I40E_FLAG_FD_SB_ENA, pf->flags) ? 1 : 0)) 5057 return -EINVAL; 5058 5059 /* verify the number of channels does not exceed hardware limits */ 5060 if (count > i40e_max_channels(vsi)) 5061 return -EINVAL; 5062 5063 /* verify that the number of channels does not invalidate any current 5064 * flow director rules 5065 */ 5066 hlist_for_each_entry_safe(rule, node2, 5067 &pf->fdir_filter_list, fdir_node) { 5068 if (rule->dest_ctl != drop && count <= rule->q_index) { 5069 dev_warn(&pf->pdev->dev, 5070 "Existing user defined filter %d assigns flow to queue %d\n", 5071 rule->fd_id, rule->q_index); 5072 err = -EINVAL; 5073 } 5074 } 5075 5076 if (err) { 5077 dev_err(&pf->pdev->dev, 5078 "Existing filter rules must be deleted to reduce combined channel count to %d\n", 5079 count); 5080 return err; 5081 } 5082 5083 /* update feature limits from largest to smallest supported values */ 5084 /* TODO: Flow director limit, DCB etc */ 5085 5086 /* use rss_reconfig to rebuild with new queue count and update traffic 5087 * class queue mapping 5088 */ 5089 new_count = i40e_reconfig_rss_queues(pf, count); 5090 if (new_count > 0) 5091 return 0; 5092 else 5093 return -EINVAL; 5094} 5095 5096/** 5097 * i40e_get_rxfh_key_size - get the RSS hash key size 5098 * @netdev: network interface device structure 5099 * 5100 * Returns the table size. 5101 **/ 5102static u32 i40e_get_rxfh_key_size(struct net_device *netdev) 5103{ 5104 return I40E_HKEY_ARRAY_SIZE; 5105} 5106 5107/** 5108 * i40e_get_rxfh_indir_size - get the rx flow hash indirection table size 5109 * @netdev: network interface device structure 5110 * 5111 * Returns the table size. 5112 **/ 5113static u32 i40e_get_rxfh_indir_size(struct net_device *netdev) 5114{ 5115 return I40E_HLUT_ARRAY_SIZE; 5116} 5117 5118/** 5119 * i40e_get_rxfh - get the rx flow hash indirection table 5120 * @netdev: network interface device structure 5121 * @rxfh: pointer to param struct (indir, key, hfunc) 5122 * 5123 * Reads the indirection table directly from the hardware. Returns 0 on 5124 * success. 5125 **/ 5126static int i40e_get_rxfh(struct net_device *netdev, 5127 struct ethtool_rxfh_param *rxfh) 5128{ 5129 struct i40e_netdev_priv *np = netdev_priv(netdev); 5130 struct i40e_vsi *vsi = np->vsi; 5131 u8 *lut, *seed = NULL; 5132 int ret; 5133 u16 i; 5134 5135 rxfh->hfunc = ETH_RSS_HASH_TOP; 5136 5137 if (!rxfh->indir) 5138 return 0; 5139 5140 seed = rxfh->key; 5141 lut = kzalloc(I40E_HLUT_ARRAY_SIZE, GFP_KERNEL); 5142 if (!lut) 5143 return -ENOMEM; 5144 ret = i40e_get_rss(vsi, seed, lut, I40E_HLUT_ARRAY_SIZE); 5145 if (ret) 5146 goto out; 5147 for (i = 0; i < I40E_HLUT_ARRAY_SIZE; i++) 5148 rxfh->indir[i] = (u32)(lut[i]); 5149 5150out: 5151 kfree(lut); 5152 5153 return ret; 5154} 5155 5156/** 5157 * i40e_set_rxfh - set the rx flow hash indirection table 5158 * @netdev: network interface device structure 5159 * @rxfh: pointer to param struct (indir, key, hfunc) 5160 * @extack: extended ACK from the Netlink message 5161 * 5162 * Returns -EINVAL if the table specifies an invalid queue id, otherwise 5163 * returns 0 after programming the table. 5164 **/ 5165static int i40e_set_rxfh(struct net_device *netdev, 5166 struct ethtool_rxfh_param *rxfh, 5167 struct netlink_ext_ack *extack) 5168{ 5169 struct i40e_netdev_priv *np = netdev_priv(netdev); 5170 struct i40e_vsi *vsi = np->vsi; 5171 struct i40e_pf *pf = vsi->back; 5172 u8 *seed = NULL; 5173 u16 i; 5174 5175 if (rxfh->hfunc != ETH_RSS_HASH_NO_CHANGE && 5176 rxfh->hfunc != ETH_RSS_HASH_TOP) 5177 return -EOPNOTSUPP; 5178 5179 if (rxfh->key) { 5180 if (!vsi->rss_hkey_user) { 5181 vsi->rss_hkey_user = kzalloc(I40E_HKEY_ARRAY_SIZE, 5182 GFP_KERNEL); 5183 if (!vsi->rss_hkey_user) 5184 return -ENOMEM; 5185 } 5186 memcpy(vsi->rss_hkey_user, rxfh->key, I40E_HKEY_ARRAY_SIZE); 5187 seed = vsi->rss_hkey_user; 5188 } 5189 if (!vsi->rss_lut_user) { 5190 vsi->rss_lut_user = kzalloc(I40E_HLUT_ARRAY_SIZE, GFP_KERNEL); 5191 if (!vsi->rss_lut_user) 5192 return -ENOMEM; 5193 } 5194 5195 /* Each 32 bits pointed by 'indir' is stored with a lut entry */ 5196 if (rxfh->indir) 5197 for (i = 0; i < I40E_HLUT_ARRAY_SIZE; i++) 5198 vsi->rss_lut_user[i] = (u8)(rxfh->indir[i]); 5199 else 5200 i40e_fill_rss_lut(pf, vsi->rss_lut_user, I40E_HLUT_ARRAY_SIZE, 5201 vsi->rss_size); 5202 5203 return i40e_config_rss(vsi, seed, vsi->rss_lut_user, 5204 I40E_HLUT_ARRAY_SIZE); 5205} 5206 5207/** 5208 * i40e_get_priv_flags - report device private flags 5209 * @dev: network interface device structure 5210 * 5211 * The get string set count and the string set should be matched for each 5212 * flag returned. Add new strings for each flag to the i40e_gstrings_priv_flags 5213 * array. 5214 * 5215 * Returns a u32 bitmap of flags. 5216 **/ 5217static u32 i40e_get_priv_flags(struct net_device *dev) 5218{ 5219 struct i40e_netdev_priv *np = netdev_priv(dev); 5220 struct i40e_vsi *vsi = np->vsi; 5221 struct i40e_pf *pf = vsi->back; 5222 u32 i, j, ret_flags = 0; 5223 5224 for (i = 0; i < I40E_PRIV_FLAGS_STR_LEN; i++) { 5225 const struct i40e_priv_flags *priv_flag; 5226 5227 priv_flag = &i40e_gstrings_priv_flags[i]; 5228 5229 if (test_bit(priv_flag->bitno, pf->flags)) 5230 ret_flags |= BIT(i); 5231 } 5232 5233 if (pf->hw.pf_id != 0) 5234 return ret_flags; 5235 5236 for (j = 0; j < I40E_GL_PRIV_FLAGS_STR_LEN; j++) { 5237 const struct i40e_priv_flags *priv_flag; 5238 5239 priv_flag = &i40e_gl_gstrings_priv_flags[j]; 5240 5241 if (test_bit(priv_flag->bitno, pf->flags)) 5242 ret_flags |= BIT(i + j); 5243 } 5244 5245 return ret_flags; 5246} 5247 5248/** 5249 * i40e_set_priv_flags - set private flags 5250 * @dev: network interface device structure 5251 * @flags: bit flags to be set 5252 **/ 5253static int i40e_set_priv_flags(struct net_device *dev, u32 flags) 5254{ 5255 DECLARE_BITMAP(changed_flags, I40E_PF_FLAGS_NBITS); 5256 DECLARE_BITMAP(orig_flags, I40E_PF_FLAGS_NBITS); 5257 DECLARE_BITMAP(new_flags, I40E_PF_FLAGS_NBITS); 5258 struct i40e_netdev_priv *np = netdev_priv(dev); 5259 enum i40e_admin_queue_err adq_err; 5260 struct i40e_vsi *vsi = np->vsi; 5261 struct i40e_pf *pf = vsi->back; 5262 u32 reset_needed = 0; 5263 int status; 5264 u32 i, j; 5265 5266 bitmap_copy(orig_flags, pf->flags, I40E_PF_FLAGS_NBITS); 5267 bitmap_copy(new_flags, pf->flags, I40E_PF_FLAGS_NBITS); 5268 5269 for (i = 0; i < I40E_PRIV_FLAGS_STR_LEN; i++) { 5270 const struct i40e_priv_flags *priv_flag; 5271 bool new_val; 5272 5273 priv_flag = &i40e_gstrings_priv_flags[i]; 5274 new_val = (flags & BIT(i)) ? true : false; 5275 5276 /* If this is a read-only flag, it can't be changed */ 5277 if (priv_flag->read_only && 5278 test_bit(priv_flag->bitno, orig_flags) != new_val) 5279 return -EOPNOTSUPP; 5280 5281 if (new_val) 5282 set_bit(priv_flag->bitno, new_flags); 5283 else 5284 clear_bit(priv_flag->bitno, new_flags); 5285 } 5286 5287 if (pf->hw.pf_id != 0) 5288 goto flags_complete; 5289 5290 for (j = 0; j < I40E_GL_PRIV_FLAGS_STR_LEN; j++) { 5291 const struct i40e_priv_flags *priv_flag; 5292 bool new_val; 5293 5294 priv_flag = &i40e_gl_gstrings_priv_flags[j]; 5295 new_val = (flags & BIT(i + j)) ? true : false; 5296 5297 /* If this is a read-only flag, it can't be changed */ 5298 if (priv_flag->read_only && 5299 test_bit(priv_flag->bitno, orig_flags) != new_val) 5300 return -EOPNOTSUPP; 5301 5302 if (new_val) 5303 set_bit(priv_flag->bitno, new_flags); 5304 else 5305 clear_bit(priv_flag->bitno, new_flags); 5306 } 5307 5308flags_complete: 5309 bitmap_xor(changed_flags, pf->flags, orig_flags, I40E_PF_FLAGS_NBITS); 5310 5311 if (test_bit(I40E_FLAG_FW_LLDP_DIS, changed_flags)) 5312 reset_needed = I40E_PF_RESET_AND_REBUILD_FLAG; 5313 5314 if (test_bit(I40E_FLAG_VEB_STATS_ENA, changed_flags) || 5315 test_bit(I40E_FLAG_LEGACY_RX_ENA, changed_flags) || 5316 test_bit(I40E_FLAG_SOURCE_PRUNING_DIS, changed_flags)) 5317 reset_needed = BIT(__I40E_PF_RESET_REQUESTED); 5318 5319 /* Before we finalize any flag changes, we need to perform some 5320 * checks to ensure that the changes are supported and safe. 5321 */ 5322 5323 /* ATR eviction is not supported on all devices */ 5324 if (test_bit(I40E_FLAG_HW_ATR_EVICT_ENA, new_flags) && 5325 !test_bit(I40E_HW_CAP_ATR_EVICT, pf->hw.caps)) 5326 return -EOPNOTSUPP; 5327 5328 /* If the driver detected FW LLDP was disabled on init, this flag could 5329 * be set, however we do not support _changing_ the flag: 5330 * - on XL710 if NPAR is enabled or FW API version < 1.7 5331 * - on X722 with FW API version < 1.6 5332 * There are situations where older FW versions/NPAR enabled PFs could 5333 * disable LLDP, however we _must_ not allow the user to enable/disable 5334 * LLDP with this flag on unsupported FW versions. 5335 */ 5336 if (test_bit(I40E_FLAG_FW_LLDP_DIS, changed_flags) && 5337 !test_bit(I40E_HW_CAP_FW_LLDP_STOPPABLE, pf->hw.caps)) { 5338 dev_warn(&pf->pdev->dev, 5339 "Device does not support changing FW LLDP\n"); 5340 return -EOPNOTSUPP; 5341 } 5342 5343 if (test_bit(I40E_FLAG_RS_FEC, changed_flags) && 5344 pf->hw.device_id != I40E_DEV_ID_25G_SFP28 && 5345 pf->hw.device_id != I40E_DEV_ID_25G_B) { 5346 dev_warn(&pf->pdev->dev, 5347 "Device does not support changing FEC configuration\n"); 5348 return -EOPNOTSUPP; 5349 } 5350 5351 if (test_bit(I40E_FLAG_BASE_R_FEC, changed_flags) && 5352 pf->hw.device_id != I40E_DEV_ID_25G_SFP28 && 5353 pf->hw.device_id != I40E_DEV_ID_25G_B && 5354 pf->hw.device_id != I40E_DEV_ID_KX_X722) { 5355 dev_warn(&pf->pdev->dev, 5356 "Device does not support changing FEC configuration\n"); 5357 return -EOPNOTSUPP; 5358 } 5359 5360 /* Process any additional changes needed as a result of flag changes. 5361 * The changed_flags value reflects the list of bits that were 5362 * changed in the code above. 5363 */ 5364 5365 /* Flush current ATR settings if ATR was disabled */ 5366 if (test_bit(I40E_FLAG_FD_ATR_ENA, changed_flags) && 5367 !test_bit(I40E_FLAG_FD_ATR_ENA, new_flags)) { 5368 set_bit(__I40E_FD_ATR_AUTO_DISABLED, pf->state); 5369 set_bit(__I40E_FD_FLUSH_REQUESTED, pf->state); 5370 } 5371 5372 if (test_bit(I40E_FLAG_TRUE_PROMISC_ENA, changed_flags)) { 5373 u16 sw_flags = 0, valid_flags = 0; 5374 int ret; 5375 5376 if (!test_bit(I40E_FLAG_TRUE_PROMISC_ENA, new_flags)) 5377 sw_flags = I40E_AQ_SET_SWITCH_CFG_PROMISC; 5378 valid_flags = I40E_AQ_SET_SWITCH_CFG_PROMISC; 5379 ret = i40e_aq_set_switch_config(&pf->hw, sw_flags, valid_flags, 5380 0, NULL); 5381 if (ret && pf->hw.aq.asq_last_status != I40E_AQ_RC_ESRCH) { 5382 dev_info(&pf->pdev->dev, 5383 "couldn't set switch config bits, err %pe aq_err %s\n", 5384 ERR_PTR(ret), 5385 i40e_aq_str(&pf->hw, 5386 pf->hw.aq.asq_last_status)); 5387 /* not a fatal problem, just keep going */ 5388 } 5389 } 5390 5391 if (test_bit(I40E_FLAG_RS_FEC, changed_flags) || 5392 test_bit(I40E_FLAG_BASE_R_FEC, changed_flags)) { 5393 u8 fec_cfg = 0; 5394 5395 if (test_bit(I40E_FLAG_RS_FEC, new_flags) && 5396 test_bit(I40E_FLAG_BASE_R_FEC, new_flags)) { 5397 fec_cfg = I40E_AQ_SET_FEC_AUTO; 5398 } else if (test_bit(I40E_FLAG_RS_FEC, new_flags)) { 5399 fec_cfg = (I40E_AQ_SET_FEC_REQUEST_RS | 5400 I40E_AQ_SET_FEC_ABILITY_RS); 5401 } else if (test_bit(I40E_FLAG_BASE_R_FEC, new_flags)) { 5402 fec_cfg = (I40E_AQ_SET_FEC_REQUEST_KR | 5403 I40E_AQ_SET_FEC_ABILITY_KR); 5404 } 5405 if (i40e_set_fec_cfg(dev, fec_cfg)) 5406 dev_warn(&pf->pdev->dev, "Cannot change FEC config\n"); 5407 } 5408 5409 if (test_bit(I40E_FLAG_LINK_DOWN_ON_CLOSE_ENA, changed_flags) && 5410 test_bit(I40E_FLAG_TOTAL_PORT_SHUTDOWN_ENA, orig_flags)) { 5411 dev_err(&pf->pdev->dev, 5412 "Setting link-down-on-close not supported on this port (because total-port-shutdown is enabled)\n"); 5413 return -EOPNOTSUPP; 5414 } 5415 5416 if (test_bit(I40E_FLAG_VF_VLAN_PRUNING_ENA, changed_flags) && 5417 pf->num_alloc_vfs) { 5418 dev_warn(&pf->pdev->dev, 5419 "Changing vf-vlan-pruning flag while VF(s) are active is not supported\n"); 5420 return -EOPNOTSUPP; 5421 } 5422 5423 if (test_bit(I40E_FLAG_LEGACY_RX_ENA, changed_flags) && 5424 I40E_2K_TOO_SMALL_WITH_PADDING) { 5425 dev_warn(&pf->pdev->dev, 5426 "2k Rx buffer is too small to fit standard MTU and skb_shared_info\n"); 5427 return -EOPNOTSUPP; 5428 } 5429 5430 if (test_bit(I40E_FLAG_LINK_DOWN_ON_CLOSE_ENA, changed_flags) && 5431 test_bit(I40E_FLAG_LINK_DOWN_ON_CLOSE_ENA, new_flags) && 5432 test_bit(I40E_FLAG_MFP_ENA, new_flags)) 5433 dev_warn(&pf->pdev->dev, 5434 "Turning on link-down-on-close flag may affect other partitions\n"); 5435 5436 if (test_bit(I40E_FLAG_FW_LLDP_DIS, changed_flags)) { 5437 if (test_bit(I40E_FLAG_FW_LLDP_DIS, new_flags)) { 5438#ifdef CONFIG_I40E_DCB 5439 i40e_dcb_sw_default_config(pf); 5440#endif /* CONFIG_I40E_DCB */ 5441 i40e_aq_cfg_lldp_mib_change_event(&pf->hw, false, NULL); 5442 i40e_aq_stop_lldp(&pf->hw, true, false, NULL); 5443 } else { 5444 status = i40e_aq_start_lldp(&pf->hw, false, NULL); 5445 if (status) { 5446 adq_err = pf->hw.aq.asq_last_status; 5447 switch (adq_err) { 5448 case I40E_AQ_RC_EEXIST: 5449 dev_warn(&pf->pdev->dev, 5450 "FW LLDP agent is already running\n"); 5451 reset_needed = 0; 5452 break; 5453 case I40E_AQ_RC_EPERM: 5454 dev_warn(&pf->pdev->dev, 5455 "Device configuration forbids SW from starting the LLDP agent.\n"); 5456 return -EINVAL; 5457 case I40E_AQ_RC_EAGAIN: 5458 dev_warn(&pf->pdev->dev, 5459 "Stop FW LLDP agent command is still being processed, please try again in a second.\n"); 5460 return -EBUSY; 5461 default: 5462 dev_warn(&pf->pdev->dev, 5463 "Starting FW LLDP agent failed: error: %pe, %s\n", 5464 ERR_PTR(status), 5465 i40e_aq_str(&pf->hw, 5466 adq_err)); 5467 return -EINVAL; 5468 } 5469 } 5470 } 5471 } 5472 5473 /* Now that we've checked to ensure that the new flags are valid, load 5474 * them into place. Since we only modify flags either (a) during 5475 * initialization or (b) while holding the RTNL lock, we don't need 5476 * anything fancy here. 5477 */ 5478 bitmap_copy(pf->flags, new_flags, I40E_PF_FLAGS_NBITS); 5479 5480 /* Issue reset to cause things to take effect, as additional bits 5481 * are added we will need to create a mask of bits requiring reset 5482 */ 5483 if (reset_needed) 5484 i40e_do_reset(pf, reset_needed, true); 5485 5486 return 0; 5487} 5488 5489/** 5490 * i40e_get_module_info - get (Q)SFP+ module type info 5491 * @netdev: network interface device structure 5492 * @modinfo: module EEPROM size and layout information structure 5493 **/ 5494static int i40e_get_module_info(struct net_device *netdev, 5495 struct ethtool_modinfo *modinfo) 5496{ 5497 struct i40e_netdev_priv *np = netdev_priv(netdev); 5498 struct i40e_vsi *vsi = np->vsi; 5499 struct i40e_pf *pf = vsi->back; 5500 struct i40e_hw *hw = &pf->hw; 5501 u32 sff8472_comp = 0; 5502 u32 sff8472_swap = 0; 5503 u32 sff8636_rev = 0; 5504 u32 type = 0; 5505 int status; 5506 5507 /* Check if firmware supports reading module EEPROM. */ 5508 if (!test_bit(I40E_HW_CAP_AQ_PHY_ACCESS, hw->caps)) { 5509 netdev_err(vsi->netdev, "Module EEPROM memory read not supported. Please update the NVM image.\n"); 5510 return -EINVAL; 5511 } 5512 5513 status = i40e_update_link_info(hw); 5514 if (status) 5515 return -EIO; 5516 5517 if (hw->phy.link_info.phy_type == I40E_PHY_TYPE_EMPTY) { 5518 netdev_err(vsi->netdev, "Cannot read module EEPROM memory. No module connected.\n"); 5519 return -EINVAL; 5520 } 5521 5522 type = hw->phy.link_info.module_type[0]; 5523 5524 switch (type) { 5525 case I40E_MODULE_TYPE_SFP: 5526 status = i40e_aq_get_phy_register(hw, 5527 I40E_AQ_PHY_REG_ACCESS_EXTERNAL_MODULE, 5528 I40E_I2C_EEPROM_DEV_ADDR, true, 5529 I40E_MODULE_SFF_8472_COMP, 5530 &sff8472_comp, NULL); 5531 if (status) 5532 return -EIO; 5533 5534 status = i40e_aq_get_phy_register(hw, 5535 I40E_AQ_PHY_REG_ACCESS_EXTERNAL_MODULE, 5536 I40E_I2C_EEPROM_DEV_ADDR, true, 5537 I40E_MODULE_SFF_8472_SWAP, 5538 &sff8472_swap, NULL); 5539 if (status) 5540 return -EIO; 5541 5542 /* Check if the module requires address swap to access 5543 * the other EEPROM memory page. 5544 */ 5545 if (sff8472_swap & I40E_MODULE_SFF_ADDR_MODE) { 5546 netdev_warn(vsi->netdev, "Module address swap to access page 0xA2 is not supported.\n"); 5547 modinfo->type = ETH_MODULE_SFF_8079; 5548 modinfo->eeprom_len = ETH_MODULE_SFF_8079_LEN; 5549 } else if (sff8472_comp == 0x00) { 5550 /* Module is not SFF-8472 compliant */ 5551 modinfo->type = ETH_MODULE_SFF_8079; 5552 modinfo->eeprom_len = ETH_MODULE_SFF_8079_LEN; 5553 } else if (!(sff8472_swap & I40E_MODULE_SFF_DDM_IMPLEMENTED)) { 5554 /* Module is SFF-8472 compliant but doesn't implement 5555 * Digital Diagnostic Monitoring (DDM). 5556 */ 5557 modinfo->type = ETH_MODULE_SFF_8079; 5558 modinfo->eeprom_len = ETH_MODULE_SFF_8079_LEN; 5559 } else { 5560 modinfo->type = ETH_MODULE_SFF_8472; 5561 modinfo->eeprom_len = ETH_MODULE_SFF_8472_LEN; 5562 } 5563 break; 5564 case I40E_MODULE_TYPE_QSFP_PLUS: 5565 /* Read from memory page 0. */ 5566 status = i40e_aq_get_phy_register(hw, 5567 I40E_AQ_PHY_REG_ACCESS_EXTERNAL_MODULE, 5568 0, true, 5569 I40E_MODULE_REVISION_ADDR, 5570 &sff8636_rev, NULL); 5571 if (status) 5572 return -EIO; 5573 /* Determine revision compliance byte */ 5574 if (sff8636_rev > 0x02) { 5575 /* Module is SFF-8636 compliant */ 5576 modinfo->type = ETH_MODULE_SFF_8636; 5577 modinfo->eeprom_len = I40E_MODULE_QSFP_MAX_LEN; 5578 } else { 5579 modinfo->type = ETH_MODULE_SFF_8436; 5580 modinfo->eeprom_len = I40E_MODULE_QSFP_MAX_LEN; 5581 } 5582 break; 5583 case I40E_MODULE_TYPE_QSFP28: 5584 modinfo->type = ETH_MODULE_SFF_8636; 5585 modinfo->eeprom_len = I40E_MODULE_QSFP_MAX_LEN; 5586 break; 5587 default: 5588 netdev_dbg(vsi->netdev, "SFP module type unrecognized or no SFP connector used.\n"); 5589 return -EOPNOTSUPP; 5590 } 5591 return 0; 5592} 5593 5594/** 5595 * i40e_get_module_eeprom - fills buffer with (Q)SFP+ module memory contents 5596 * @netdev: network interface device structure 5597 * @ee: EEPROM dump request structure 5598 * @data: buffer to be filled with EEPROM contents 5599 **/ 5600static int i40e_get_module_eeprom(struct net_device *netdev, 5601 struct ethtool_eeprom *ee, 5602 u8 *data) 5603{ 5604 struct i40e_netdev_priv *np = netdev_priv(netdev); 5605 struct i40e_vsi *vsi = np->vsi; 5606 struct i40e_pf *pf = vsi->back; 5607 struct i40e_hw *hw = &pf->hw; 5608 bool is_sfp = false; 5609 u32 value = 0; 5610 int status; 5611 int i; 5612 5613 if (!ee || !ee->len || !data) 5614 return -EINVAL; 5615 5616 if (hw->phy.link_info.module_type[0] == I40E_MODULE_TYPE_SFP) 5617 is_sfp = true; 5618 5619 for (i = 0; i < ee->len; i++) { 5620 u32 offset = i + ee->offset; 5621 u32 addr = is_sfp ? I40E_I2C_EEPROM_DEV_ADDR : 0; 5622 5623 /* Check if we need to access the other memory page */ 5624 if (is_sfp) { 5625 if (offset >= ETH_MODULE_SFF_8079_LEN) { 5626 offset -= ETH_MODULE_SFF_8079_LEN; 5627 addr = I40E_I2C_EEPROM_DEV_ADDR2; 5628 } 5629 } else { 5630 while (offset >= ETH_MODULE_SFF_8436_LEN) { 5631 /* Compute memory page number and offset. */ 5632 offset -= ETH_MODULE_SFF_8436_LEN / 2; 5633 addr++; 5634 } 5635 } 5636 5637 status = i40e_aq_get_phy_register(hw, 5638 I40E_AQ_PHY_REG_ACCESS_EXTERNAL_MODULE, 5639 addr, true, offset, &value, NULL); 5640 if (status) 5641 return -EIO; 5642 data[i] = value; 5643 } 5644 return 0; 5645} 5646 5647static int i40e_get_eee(struct net_device *netdev, struct ethtool_keee *edata) 5648{ 5649 struct i40e_netdev_priv *np = netdev_priv(netdev); 5650 struct i40e_aq_get_phy_abilities_resp phy_cfg; 5651 struct i40e_vsi *vsi = np->vsi; 5652 struct i40e_pf *pf = vsi->back; 5653 struct i40e_hw *hw = &pf->hw; 5654 int status = 0; 5655 5656 /* Get initial PHY capabilities */ 5657 status = i40e_aq_get_phy_capabilities(hw, false, true, &phy_cfg, NULL); 5658 if (status) 5659 return -EAGAIN; 5660 5661 /* Check whether NIC configuration is compatible with Energy Efficient 5662 * Ethernet (EEE) mode. 5663 */ 5664 if (phy_cfg.eee_capability == 0) 5665 return -EOPNOTSUPP; 5666 5667 /* Get current configuration */ 5668 status = i40e_aq_get_phy_capabilities(hw, false, false, &phy_cfg, NULL); 5669 if (status) 5670 return -EAGAIN; 5671 5672 edata->eee_enabled = !!phy_cfg.eee_capability; 5673 edata->tx_lpi_enabled = pf->stats.tx_lpi_status; 5674 5675 edata->eee_active = pf->stats.tx_lpi_status && pf->stats.rx_lpi_status; 5676 5677 return 0; 5678} 5679 5680static int i40e_is_eee_param_supported(struct net_device *netdev, 5681 struct ethtool_keee *edata) 5682{ 5683 struct i40e_netdev_priv *np = netdev_priv(netdev); 5684 struct i40e_vsi *vsi = np->vsi; 5685 struct i40e_pf *pf = vsi->back; 5686 struct i40e_ethtool_not_used { 5687 u32 value; 5688 const char *name; 5689 } param[] = { 5690 {edata->tx_lpi_timer, "tx-timer"}, 5691 {edata->tx_lpi_enabled != pf->stats.tx_lpi_status, "tx-lpi"} 5692 }; 5693 int i; 5694 5695 for (i = 0; i < ARRAY_SIZE(param); i++) { 5696 if (param[i].value) { 5697 netdev_info(netdev, 5698 "EEE setting %s not supported\n", 5699 param[i].name); 5700 return -EOPNOTSUPP; 5701 } 5702 } 5703 5704 return 0; 5705} 5706 5707static int i40e_set_eee(struct net_device *netdev, struct ethtool_keee *edata) 5708{ 5709 struct i40e_netdev_priv *np = netdev_priv(netdev); 5710 struct i40e_aq_get_phy_abilities_resp abilities; 5711 struct i40e_aq_set_phy_config config; 5712 struct i40e_vsi *vsi = np->vsi; 5713 struct i40e_pf *pf = vsi->back; 5714 struct i40e_hw *hw = &pf->hw; 5715 __le16 eee_capability; 5716 int status = 0; 5717 5718 /* Deny parameters we don't support */ 5719 if (i40e_is_eee_param_supported(netdev, edata)) 5720 return -EOPNOTSUPP; 5721 5722 /* Get initial PHY capabilities */ 5723 status = i40e_aq_get_phy_capabilities(hw, false, true, &abilities, 5724 NULL); 5725 if (status) 5726 return -EAGAIN; 5727 5728 /* Check whether NIC configuration is compatible with Energy Efficient 5729 * Ethernet (EEE) mode. 5730 */ 5731 if (abilities.eee_capability == 0) 5732 return -EOPNOTSUPP; 5733 5734 /* Cache initial EEE capability */ 5735 eee_capability = abilities.eee_capability; 5736 5737 /* Get current PHY configuration */ 5738 status = i40e_aq_get_phy_capabilities(hw, false, false, &abilities, 5739 NULL); 5740 if (status) 5741 return -EAGAIN; 5742 5743 /* Cache current PHY configuration */ 5744 config.phy_type = abilities.phy_type; 5745 config.phy_type_ext = abilities.phy_type_ext; 5746 config.link_speed = abilities.link_speed; 5747 config.abilities = abilities.abilities | 5748 I40E_AQ_PHY_ENABLE_ATOMIC_LINK; 5749 config.eeer = abilities.eeer_val; 5750 config.low_power_ctrl = abilities.d3_lpan; 5751 config.fec_config = abilities.fec_cfg_curr_mod_ext_info & 5752 I40E_AQ_PHY_FEC_CONFIG_MASK; 5753 5754 /* Set desired EEE state */ 5755 if (edata->eee_enabled) { 5756 config.eee_capability = eee_capability; 5757 config.eeer |= cpu_to_le32(I40E_PRTPM_EEER_TX_LPI_EN_MASK); 5758 } else { 5759 config.eee_capability = 0; 5760 config.eeer &= cpu_to_le32(~I40E_PRTPM_EEER_TX_LPI_EN_MASK); 5761 } 5762 5763 /* Apply modified PHY configuration */ 5764 status = i40e_aq_set_phy_config(hw, &config, NULL); 5765 if (status) 5766 return -EAGAIN; 5767 5768 return 0; 5769} 5770 5771static const struct ethtool_ops i40e_ethtool_recovery_mode_ops = { 5772 .get_drvinfo = i40e_get_drvinfo, 5773 .set_eeprom = i40e_set_eeprom, 5774 .get_eeprom_len = i40e_get_eeprom_len, 5775 .get_eeprom = i40e_get_eeprom, 5776}; 5777 5778static const struct ethtool_ops i40e_ethtool_ops = { 5779 .supported_coalesce_params = ETHTOOL_COALESCE_USECS | 5780 ETHTOOL_COALESCE_TX_MAX_FRAMES_IRQ | 5781 ETHTOOL_COALESCE_USE_ADAPTIVE | 5782 ETHTOOL_COALESCE_RX_USECS_HIGH | 5783 ETHTOOL_COALESCE_TX_USECS_HIGH, 5784 .get_drvinfo = i40e_get_drvinfo, 5785 .get_regs_len = i40e_get_regs_len, 5786 .get_regs = i40e_get_regs, 5787 .nway_reset = i40e_nway_reset, 5788 .get_link = ethtool_op_get_link, 5789 .get_wol = i40e_get_wol, 5790 .set_wol = i40e_set_wol, 5791 .set_eeprom = i40e_set_eeprom, 5792 .get_eeprom_len = i40e_get_eeprom_len, 5793 .get_eeprom = i40e_get_eeprom, 5794 .get_ringparam = i40e_get_ringparam, 5795 .set_ringparam = i40e_set_ringparam, 5796 .get_pauseparam = i40e_get_pauseparam, 5797 .set_pauseparam = i40e_set_pauseparam, 5798 .get_msglevel = i40e_get_msglevel, 5799 .set_msglevel = i40e_set_msglevel, 5800 .get_rxnfc = i40e_get_rxnfc, 5801 .set_rxnfc = i40e_set_rxnfc, 5802 .self_test = i40e_diag_test, 5803 .get_strings = i40e_get_strings, 5804 .get_eee = i40e_get_eee, 5805 .set_eee = i40e_set_eee, 5806 .set_phys_id = i40e_set_phys_id, 5807 .get_sset_count = i40e_get_sset_count, 5808 .get_ethtool_stats = i40e_get_ethtool_stats, 5809 .get_coalesce = i40e_get_coalesce, 5810 .set_coalesce = i40e_set_coalesce, 5811 .get_rxfh_key_size = i40e_get_rxfh_key_size, 5812 .get_rxfh_indir_size = i40e_get_rxfh_indir_size, 5813 .get_rxfh = i40e_get_rxfh, 5814 .set_rxfh = i40e_set_rxfh, 5815 .get_channels = i40e_get_channels, 5816 .set_channels = i40e_set_channels, 5817 .get_module_info = i40e_get_module_info, 5818 .get_module_eeprom = i40e_get_module_eeprom, 5819 .get_ts_info = i40e_get_ts_info, 5820 .get_priv_flags = i40e_get_priv_flags, 5821 .set_priv_flags = i40e_set_priv_flags, 5822 .get_per_queue_coalesce = i40e_get_per_queue_coalesce, 5823 .set_per_queue_coalesce = i40e_set_per_queue_coalesce, 5824 .get_link_ksettings = i40e_get_link_ksettings, 5825 .set_link_ksettings = i40e_set_link_ksettings, 5826 .get_fecparam = i40e_get_fec_param, 5827 .set_fecparam = i40e_set_fec_param, 5828 .flash_device = i40e_ddp_flash, 5829}; 5830 5831void i40e_set_ethtool_ops(struct net_device *netdev) 5832{ 5833 struct i40e_netdev_priv *np = netdev_priv(netdev); 5834 struct i40e_pf *pf = np->vsi->back; 5835 5836 if (!test_bit(__I40E_RECOVERY_MODE, pf->state)) 5837 netdev->ethtool_ops = &i40e_ethtool_ops; 5838 else 5839 netdev->ethtool_ops = &i40e_ethtool_recovery_mode_ops; 5840} 5841