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i40e_ethtool.c
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linux-6.19.14/drivers/net/ethernet/intel/i40e/i40e_ethtool.c
1// SPDX-License-Identifier: GPL-2.0 2/* Copyright(c) 2013 - 2018 Intel Corporation. */ 3 4/* ethtool support for i40e */ 5 6#include <linux/net/intel/libie/pctype.h> 7#include "i40e_devids.h" 8#include "i40e_diag.h" 9#include "i40e_txrx_common.h" 10#include "i40e_virtchnl_pf.h" 11 12/* ethtool statistics helpers */ 13 14/** 15 * struct i40e_stats - definition for an ethtool statistic 16 * @stat_string: statistic name to display in ethtool -S output 17 * @sizeof_stat: the sizeof() the stat, must be no greater than sizeof(u64) 18 * @stat_offset: offsetof() the stat from a base pointer 19 * 20 * This structure defines a statistic to be added to the ethtool stats buffer. 21 * It defines a statistic as offset from a common base pointer. Stats should 22 * be defined in constant arrays using the I40E_STAT macro, with every element 23 * of the array using the same _type for calculating the sizeof_stat and 24 * stat_offset. 25 * 26 * The @sizeof_stat is expected to be sizeof(u8), sizeof(u16), sizeof(u32) or 27 * sizeof(u64). Other sizes are not expected and will produce a WARN_ONCE from 28 * the i40e_add_ethtool_stat() helper function. 29 * 30 * The @stat_string is interpreted as a format string, allowing formatted 31 * values to be inserted while looping over multiple structures for a given 32 * statistics array. Thus, every statistic string in an array should have the 33 * same type and number of format specifiers, to be formatted by variadic 34 * arguments to the i40e_add_stat_string() helper function. 35 **/ 36struct i40e_stats { 37 char stat_string[ETH_GSTRING_LEN]; 38 int sizeof_stat; 39 int stat_offset; 40}; 41 42/* Helper macro to define an i40e_stat structure with proper size and type. 43 * Use this when defining constant statistics arrays. Note that @_type expects 44 * only a type name and is used multiple times. 45 */ 46#define I40E_STAT(_type, _name, _stat) { \ 47 .stat_string = _name, \ 48 .sizeof_stat = sizeof_field(_type, _stat), \ 49 .stat_offset = offsetof(_type, _stat) \ 50} 51 52/* Helper macro for defining some statistics directly copied from the netdev 53 * stats structure. 54 */ 55#define I40E_NETDEV_STAT(_net_stat) \ 56 I40E_STAT(struct rtnl_link_stats64, #_net_stat, _net_stat) 57 58/* Helper macro for defining some statistics related to queues */ 59#define I40E_QUEUE_STAT(_name, _stat) \ 60 I40E_STAT(struct i40e_ring, _name, _stat) 61 62/* Stats associated with a Tx or Rx ring */ 63static const struct i40e_stats i40e_gstrings_queue_stats[] = { 64 I40E_QUEUE_STAT("%s-%u.packets", stats.packets), 65 I40E_QUEUE_STAT("%s-%u.bytes", stats.bytes), 66}; 67 68/** 69 * i40e_add_one_ethtool_stat - copy the stat into the supplied buffer 70 * @data: location to store the stat value 71 * @pointer: basis for where to copy from 72 * @stat: the stat definition 73 * 74 * Copies the stat data defined by the pointer and stat structure pair into 75 * the memory supplied as data. Used to implement i40e_add_ethtool_stats and 76 * i40e_add_queue_stats. If the pointer is null, data will be zero'd. 77 */ 78static void 79i40e_add_one_ethtool_stat(u64 *data, void *pointer, 80 const struct i40e_stats *stat) 81{ 82 char *p; 83 84 if (!pointer) { 85 /* ensure that the ethtool data buffer is zero'd for any stats 86 * which don't have a valid pointer. 87 */ 88 *data = 0; 89 return; 90 } 91 92 p = (char *)pointer + stat->stat_offset; 93 switch (stat->sizeof_stat) { 94 case sizeof(u64): 95 *data = *((u64 *)p); 96 break; 97 case sizeof(u32): 98 *data = *((u32 *)p); 99 break; 100 case sizeof(u16): 101 *data = *((u16 *)p); 102 break; 103 case sizeof(u8): 104 *data = *((u8 *)p); 105 break; 106 default: 107 WARN_ONCE(1, "unexpected stat size for %s", 108 stat->stat_string); 109 *data = 0; 110 } 111} 112 113/** 114 * __i40e_add_ethtool_stats - copy stats into the ethtool supplied buffer 115 * @data: ethtool stats buffer 116 * @pointer: location to copy stats from 117 * @stats: array of stats to copy 118 * @size: the size of the stats definition 119 * 120 * Copy the stats defined by the stats array using the pointer as a base into 121 * the data buffer supplied by ethtool. Updates the data pointer to point to 122 * the next empty location for successive calls to __i40e_add_ethtool_stats. 123 * If pointer is null, set the data values to zero and update the pointer to 124 * skip these stats. 125 **/ 126static void 127__i40e_add_ethtool_stats(u64 **data, void *pointer, 128 const struct i40e_stats stats[], 129 const unsigned int size) 130{ 131 unsigned int i; 132 133 for (i = 0; i < size; i++) 134 i40e_add_one_ethtool_stat((*data)++, pointer, &stats[i]); 135} 136 137/** 138 * i40e_add_ethtool_stats - copy stats into ethtool supplied buffer 139 * @data: ethtool stats buffer 140 * @pointer: location where stats are stored 141 * @stats: static const array of stat definitions 142 * 143 * Macro to ease the use of __i40e_add_ethtool_stats by taking a static 144 * constant stats array and passing the ARRAY_SIZE(). This avoids typos by 145 * ensuring that we pass the size associated with the given stats array. 146 * 147 * The parameter @stats is evaluated twice, so parameters with side effects 148 * should be avoided. 149 **/ 150#define i40e_add_ethtool_stats(data, pointer, stats) \ 151 __i40e_add_ethtool_stats(data, pointer, stats, ARRAY_SIZE(stats)) 152 153/** 154 * i40e_add_queue_stats - copy queue statistics into supplied buffer 155 * @data: ethtool stats buffer 156 * @ring: the ring to copy 157 * 158 * Queue statistics must be copied while protected by 159 * u64_stats_fetch_begin, so we can't directly use i40e_add_ethtool_stats. 160 * Assumes that queue stats are defined in i40e_gstrings_queue_stats. If the 161 * ring pointer is null, zero out the queue stat values and update the data 162 * pointer. Otherwise safely copy the stats from the ring into the supplied 163 * buffer and update the data pointer when finished. 164 * 165 * This function expects to be called while under rcu_read_lock(). 166 **/ 167static void 168i40e_add_queue_stats(u64 **data, struct i40e_ring *ring) 169{ 170 const unsigned int size = ARRAY_SIZE(i40e_gstrings_queue_stats); 171 const struct i40e_stats *stats = i40e_gstrings_queue_stats; 172 unsigned int start; 173 unsigned int i; 174 175 /* To avoid invalid statistics values, ensure that we keep retrying 176 * the copy until we get a consistent value according to 177 * u64_stats_fetch_retry. But first, make sure our ring is 178 * non-null before attempting to access its syncp. 179 */ 180 do { 181 start = !ring ? 0 : u64_stats_fetch_begin(&ring->syncp); 182 for (i = 0; i < size; i++) { 183 i40e_add_one_ethtool_stat(&(*data)[i], ring, 184 &stats[i]); 185 } 186 } while (ring && u64_stats_fetch_retry(&ring->syncp, start)); 187 188 /* Once we successfully copy the stats in, update the data pointer */ 189 *data += size; 190} 191 192/** 193 * __i40e_add_stat_strings - copy stat strings into ethtool buffer 194 * @p: ethtool supplied buffer 195 * @stats: stat definitions array 196 * @size: size of the stats array 197 * 198 * Format and copy the strings described by stats into the buffer pointed at 199 * by p. 200 **/ 201static void __i40e_add_stat_strings(u8 **p, const struct i40e_stats stats[], 202 const unsigned int size, ...) 203{ 204 unsigned int i; 205 206 for (i = 0; i < size; i++) { 207 va_list args; 208 209 va_start(args, size); 210 vsnprintf(*p, ETH_GSTRING_LEN, stats[i].stat_string, args); 211 *p += ETH_GSTRING_LEN; 212 va_end(args); 213 } 214} 215 216/** 217 * i40e_add_stat_strings - copy stat strings into ethtool buffer 218 * @p: ethtool supplied buffer 219 * @stats: stat definitions array 220 * 221 * Format and copy the strings described by the const static stats value into 222 * the buffer pointed at by p. 223 * 224 * The parameter @stats is evaluated twice, so parameters with side effects 225 * should be avoided. Additionally, stats must be an array such that 226 * ARRAY_SIZE can be called on it. 227 **/ 228#define i40e_add_stat_strings(p, stats, ...) \ 229 __i40e_add_stat_strings(p, stats, ARRAY_SIZE(stats), ## __VA_ARGS__) 230 231#define I40E_PF_STAT(_name, _stat) \ 232 I40E_STAT(struct i40e_pf, _name, _stat) 233#define I40E_VSI_STAT(_name, _stat) \ 234 I40E_STAT(struct i40e_vsi, _name, _stat) 235#define I40E_VEB_STAT(_name, _stat) \ 236 I40E_STAT(struct i40e_veb, _name, _stat) 237#define I40E_VEB_TC_STAT(_name, _stat) \ 238 I40E_STAT(struct i40e_cp_veb_tc_stats, _name, _stat) 239#define I40E_PFC_STAT(_name, _stat) \ 240 I40E_STAT(struct i40e_pfc_stats, _name, _stat) 241 242static const struct i40e_stats i40e_gstrings_net_stats[] = { 243 I40E_NETDEV_STAT(rx_packets), 244 I40E_NETDEV_STAT(tx_packets), 245 I40E_NETDEV_STAT(rx_bytes), 246 I40E_NETDEV_STAT(tx_bytes), 247 I40E_NETDEV_STAT(rx_errors), 248 I40E_NETDEV_STAT(tx_errors), 249 I40E_NETDEV_STAT(rx_dropped), 250 I40E_NETDEV_STAT(rx_missed_errors), 251 I40E_NETDEV_STAT(tx_dropped), 252 I40E_NETDEV_STAT(collisions), 253 I40E_NETDEV_STAT(rx_length_errors), 254 I40E_NETDEV_STAT(rx_crc_errors), 255}; 256 257static const struct i40e_stats i40e_gstrings_veb_stats[] = { 258 I40E_VEB_STAT("veb.rx_bytes", stats.rx_bytes), 259 I40E_VEB_STAT("veb.tx_bytes", stats.tx_bytes), 260 I40E_VEB_STAT("veb.rx_unicast", stats.rx_unicast), 261 I40E_VEB_STAT("veb.tx_unicast", stats.tx_unicast), 262 I40E_VEB_STAT("veb.rx_multicast", stats.rx_multicast), 263 I40E_VEB_STAT("veb.tx_multicast", stats.tx_multicast), 264 I40E_VEB_STAT("veb.rx_broadcast", stats.rx_broadcast), 265 I40E_VEB_STAT("veb.tx_broadcast", stats.tx_broadcast), 266 I40E_VEB_STAT("veb.rx_discards", stats.rx_discards), 267 I40E_VEB_STAT("veb.tx_discards", stats.tx_discards), 268 I40E_VEB_STAT("veb.tx_errors", stats.tx_errors), 269 I40E_VEB_STAT("veb.rx_unknown_protocol", stats.rx_unknown_protocol), 270}; 271 272struct i40e_cp_veb_tc_stats { 273 u64 tc_rx_packets; 274 u64 tc_rx_bytes; 275 u64 tc_tx_packets; 276 u64 tc_tx_bytes; 277}; 278 279static const struct i40e_stats i40e_gstrings_veb_tc_stats[] = { 280 I40E_VEB_TC_STAT("veb.tc_%u_tx_packets", tc_tx_packets), 281 I40E_VEB_TC_STAT("veb.tc_%u_tx_bytes", tc_tx_bytes), 282 I40E_VEB_TC_STAT("veb.tc_%u_rx_packets", tc_rx_packets), 283 I40E_VEB_TC_STAT("veb.tc_%u_rx_bytes", tc_rx_bytes), 284}; 285 286static const struct i40e_stats i40e_gstrings_misc_stats[] = { 287 I40E_VSI_STAT("rx_unicast", eth_stats.rx_unicast), 288 I40E_VSI_STAT("tx_unicast", eth_stats.tx_unicast), 289 I40E_VSI_STAT("rx_multicast", eth_stats.rx_multicast), 290 I40E_VSI_STAT("tx_multicast", eth_stats.tx_multicast), 291 I40E_VSI_STAT("rx_broadcast", eth_stats.rx_broadcast), 292 I40E_VSI_STAT("tx_broadcast", eth_stats.tx_broadcast), 293 I40E_VSI_STAT("rx_unknown_protocol", eth_stats.rx_unknown_protocol), 294 I40E_VSI_STAT("tx_linearize", tx_linearize), 295 I40E_VSI_STAT("tx_force_wb", tx_force_wb), 296 I40E_VSI_STAT("tx_busy", tx_busy), 297 I40E_VSI_STAT("tx_stopped", tx_stopped), 298 I40E_VSI_STAT("rx_alloc_fail", rx_buf_failed), 299 I40E_VSI_STAT("rx_pg_alloc_fail", rx_page_failed), 300 I40E_VSI_STAT("rx_cache_reuse", rx_page_reuse), 301 I40E_VSI_STAT("rx_cache_alloc", rx_page_alloc), 302 I40E_VSI_STAT("rx_cache_waive", rx_page_waive), 303 I40E_VSI_STAT("rx_cache_busy", rx_page_busy), 304 I40E_VSI_STAT("tx_restart", tx_restart), 305}; 306 307/* These PF_STATs might look like duplicates of some NETDEV_STATs, 308 * but they are separate. This device supports Virtualization, and 309 * as such might have several netdevs supporting VMDq and FCoE going 310 * through a single port. The NETDEV_STATs are for individual netdevs 311 * seen at the top of the stack, and the PF_STATs are for the physical 312 * function at the bottom of the stack hosting those netdevs. 313 * 314 * The PF_STATs are appended to the netdev stats only when ethtool -S 315 * is queried on the base PF netdev, not on the VMDq or FCoE netdev. 316 */ 317static const struct i40e_stats i40e_gstrings_stats[] = { 318 I40E_PF_STAT("port.rx_bytes", stats.eth.rx_bytes), 319 I40E_PF_STAT("port.tx_bytes", stats.eth.tx_bytes), 320 I40E_PF_STAT("port.rx_unicast", stats.eth.rx_unicast), 321 I40E_PF_STAT("port.tx_unicast", stats.eth.tx_unicast), 322 I40E_PF_STAT("port.rx_multicast", stats.eth.rx_multicast), 323 I40E_PF_STAT("port.tx_multicast", stats.eth.tx_multicast), 324 I40E_PF_STAT("port.rx_broadcast", stats.eth.rx_broadcast), 325 I40E_PF_STAT("port.tx_broadcast", stats.eth.tx_broadcast), 326 I40E_PF_STAT("port.tx_errors", stats.eth.tx_errors), 327 I40E_PF_STAT("port.rx_discards", stats.eth.rx_discards), 328 I40E_PF_STAT("port.tx_dropped_link_down", stats.tx_dropped_link_down), 329 I40E_PF_STAT("port.rx_crc_errors", stats.crc_errors), 330 I40E_PF_STAT("port.illegal_bytes", stats.illegal_bytes), 331 I40E_PF_STAT("port.mac_local_faults", stats.mac_local_faults), 332 I40E_PF_STAT("port.mac_remote_faults", stats.mac_remote_faults), 333 I40E_PF_STAT("port.tx_timeout", tx_timeout_count), 334 I40E_PF_STAT("port.rx_csum_bad", hw_csum_rx_error), 335 I40E_PF_STAT("port.rx_length_errors", stats.rx_length_errors), 336 I40E_PF_STAT("port.link_xon_rx", stats.link_xon_rx), 337 I40E_PF_STAT("port.link_xoff_rx", stats.link_xoff_rx), 338 I40E_PF_STAT("port.link_xon_tx", stats.link_xon_tx), 339 I40E_PF_STAT("port.link_xoff_tx", stats.link_xoff_tx), 340 I40E_PF_STAT("port.rx_size_64", stats.rx_size_64), 341 I40E_PF_STAT("port.rx_size_127", stats.rx_size_127), 342 I40E_PF_STAT("port.rx_size_255", stats.rx_size_255), 343 I40E_PF_STAT("port.rx_size_511", stats.rx_size_511), 344 I40E_PF_STAT("port.rx_size_1023", stats.rx_size_1023), 345 I40E_PF_STAT("port.rx_size_1522", stats.rx_size_1522), 346 I40E_PF_STAT("port.rx_size_big", stats.rx_size_big), 347 I40E_PF_STAT("port.tx_size_64", stats.tx_size_64), 348 I40E_PF_STAT("port.tx_size_127", stats.tx_size_127), 349 I40E_PF_STAT("port.tx_size_255", stats.tx_size_255), 350 I40E_PF_STAT("port.tx_size_511", stats.tx_size_511), 351 I40E_PF_STAT("port.tx_size_1023", stats.tx_size_1023), 352 I40E_PF_STAT("port.tx_size_1522", stats.tx_size_1522), 353 I40E_PF_STAT("port.tx_size_big", stats.tx_size_big), 354 I40E_PF_STAT("port.rx_undersize", stats.rx_undersize), 355 I40E_PF_STAT("port.rx_fragments", stats.rx_fragments), 356 I40E_PF_STAT("port.rx_oversize", stats.rx_oversize), 357 I40E_PF_STAT("port.rx_jabber", stats.rx_jabber), 358 I40E_PF_STAT("port.VF_admin_queue_requests", vf_aq_requests), 359 I40E_PF_STAT("port.arq_overflows", arq_overflows), 360 I40E_PF_STAT("port.tx_hwtstamp_timeouts", tx_hwtstamp_timeouts), 361 I40E_PF_STAT("port.rx_hwtstamp_cleared", rx_hwtstamp_cleared), 362 I40E_PF_STAT("port.tx_hwtstamp_skipped", tx_hwtstamp_skipped), 363 I40E_PF_STAT("port.fdir_flush_cnt", fd_flush_cnt), 364 I40E_PF_STAT("port.fdir_atr_match", stats.fd_atr_match), 365 I40E_PF_STAT("port.fdir_atr_tunnel_match", stats.fd_atr_tunnel_match), 366 I40E_PF_STAT("port.fdir_atr_status", stats.fd_atr_status), 367 I40E_PF_STAT("port.fdir_sb_match", stats.fd_sb_match), 368 I40E_PF_STAT("port.fdir_sb_status", stats.fd_sb_status), 369 370 /* LPI stats */ 371 I40E_PF_STAT("port.tx_lpi_status", stats.tx_lpi_status), 372 I40E_PF_STAT("port.rx_lpi_status", stats.rx_lpi_status), 373 I40E_PF_STAT("port.tx_lpi_count", stats.tx_lpi_count), 374 I40E_PF_STAT("port.rx_lpi_count", stats.rx_lpi_count), 375}; 376 377struct i40e_pfc_stats { 378 u64 priority_xon_rx; 379 u64 priority_xoff_rx; 380 u64 priority_xon_tx; 381 u64 priority_xoff_tx; 382 u64 priority_xon_2_xoff; 383}; 384 385static const struct i40e_stats i40e_gstrings_pfc_stats[] = { 386 I40E_PFC_STAT("port.tx_priority_%u_xon_tx", priority_xon_tx), 387 I40E_PFC_STAT("port.tx_priority_%u_xoff_tx", priority_xoff_tx), 388 I40E_PFC_STAT("port.rx_priority_%u_xon_rx", priority_xon_rx), 389 I40E_PFC_STAT("port.rx_priority_%u_xoff_rx", priority_xoff_rx), 390 I40E_PFC_STAT("port.rx_priority_%u_xon_2_xoff", priority_xon_2_xoff), 391}; 392 393#define I40E_NETDEV_STATS_LEN ARRAY_SIZE(i40e_gstrings_net_stats) 394 395#define I40E_MISC_STATS_LEN ARRAY_SIZE(i40e_gstrings_misc_stats) 396 397#define I40E_VSI_STATS_LEN (I40E_NETDEV_STATS_LEN + I40E_MISC_STATS_LEN) 398 399#define I40E_PFC_STATS_LEN (ARRAY_SIZE(i40e_gstrings_pfc_stats) * \ 400 I40E_MAX_USER_PRIORITY) 401 402#define I40E_VEB_STATS_LEN (ARRAY_SIZE(i40e_gstrings_veb_stats) + \ 403 (ARRAY_SIZE(i40e_gstrings_veb_tc_stats) * \ 404 I40E_MAX_TRAFFIC_CLASS)) 405 406#define I40E_GLOBAL_STATS_LEN ARRAY_SIZE(i40e_gstrings_stats) 407 408#define I40E_PF_STATS_LEN (I40E_GLOBAL_STATS_LEN + \ 409 I40E_PFC_STATS_LEN + \ 410 I40E_VEB_STATS_LEN + \ 411 I40E_VSI_STATS_LEN) 412 413/* Length of stats for a single queue */ 414#define I40E_QUEUE_STATS_LEN ARRAY_SIZE(i40e_gstrings_queue_stats) 415 416enum i40e_ethtool_test_id { 417 I40E_ETH_TEST_REG = 0, 418 I40E_ETH_TEST_EEPROM, 419 I40E_ETH_TEST_INTR, 420 I40E_ETH_TEST_LINK, 421}; 422 423static const char i40e_gstrings_test[][ETH_GSTRING_LEN] = { 424 "Register test (offline)", 425 "Eeprom test (offline)", 426 "Interrupt test (offline)", 427 "Link test (on/offline)" 428}; 429 430#define I40E_TEST_LEN (sizeof(i40e_gstrings_test) / ETH_GSTRING_LEN) 431 432struct i40e_priv_flags { 433 char flag_string[ETH_GSTRING_LEN]; 434 u8 bitno; 435 bool read_only; 436}; 437 438#define I40E_PRIV_FLAG(_name, _bitno, _read_only) { \ 439 .flag_string = _name, \ 440 .bitno = _bitno, \ 441 .read_only = _read_only, \ 442} 443 444static const struct i40e_priv_flags i40e_gstrings_priv_flags[] = { 445 /* NOTE: MFP setting cannot be changed */ 446 I40E_PRIV_FLAG("MFP", I40E_FLAG_MFP_ENA, 1), 447 I40E_PRIV_FLAG("total-port-shutdown", 448 I40E_FLAG_TOTAL_PORT_SHUTDOWN_ENA, 1), 449 I40E_PRIV_FLAG("LinkPolling", I40E_FLAG_LINK_POLLING_ENA, 0), 450 I40E_PRIV_FLAG("flow-director-atr", I40E_FLAG_FD_ATR_ENA, 0), 451 I40E_PRIV_FLAG("veb-stats", I40E_FLAG_VEB_STATS_ENA, 0), 452 I40E_PRIV_FLAG("hw-atr-eviction", I40E_FLAG_HW_ATR_EVICT_ENA, 0), 453 I40E_PRIV_FLAG("link-down-on-close", 454 I40E_FLAG_LINK_DOWN_ON_CLOSE_ENA, 0), 455 I40E_PRIV_FLAG("legacy-rx", I40E_FLAG_LEGACY_RX_ENA, 0), 456 I40E_PRIV_FLAG("disable-source-pruning", 457 I40E_FLAG_SOURCE_PRUNING_DIS, 0), 458 I40E_PRIV_FLAG("disable-fw-lldp", I40E_FLAG_FW_LLDP_DIS, 0), 459 I40E_PRIV_FLAG("rs-fec", I40E_FLAG_RS_FEC, 0), 460 I40E_PRIV_FLAG("base-r-fec", I40E_FLAG_BASE_R_FEC, 0), 461 I40E_PRIV_FLAG("vf-vlan-pruning", 462 I40E_FLAG_VF_VLAN_PRUNING_ENA, 0), 463 I40E_PRIV_FLAG("mdd-auto-reset-vf", 464 I40E_FLAG_MDD_AUTO_RESET_VF, 0), 465}; 466 467#define I40E_PRIV_FLAGS_STR_LEN ARRAY_SIZE(i40e_gstrings_priv_flags) 468 469/* Private flags with a global effect, restricted to PF 0 */ 470static const struct i40e_priv_flags i40e_gl_gstrings_priv_flags[] = { 471 I40E_PRIV_FLAG("vf-true-promisc-support", 472 I40E_FLAG_TRUE_PROMISC_ENA, 0), 473}; 474 475#define I40E_GL_PRIV_FLAGS_STR_LEN ARRAY_SIZE(i40e_gl_gstrings_priv_flags) 476 477/** 478 * i40e_partition_setting_complaint - generic complaint for MFP restriction 479 * @pf: the PF struct 480 **/ 481static void i40e_partition_setting_complaint(struct i40e_pf *pf) 482{ 483 dev_info(&pf->pdev->dev, 484 "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"); 485} 486 487/** 488 * i40e_phy_type_to_ethtool - convert the phy_types to ethtool link modes 489 * @pf: PF struct with phy_types 490 * @ks: ethtool link ksettings struct to fill out 491 * 492 **/ 493static void i40e_phy_type_to_ethtool(struct i40e_pf *pf, 494 struct ethtool_link_ksettings *ks) 495{ 496 struct i40e_link_status *hw_link_info = &pf->hw.phy.link_info; 497 u64 phy_types = pf->hw.phy.phy_types; 498 499 ethtool_link_ksettings_zero_link_mode(ks, supported); 500 ethtool_link_ksettings_zero_link_mode(ks, advertising); 501 502 if (phy_types & I40E_CAP_PHY_TYPE_SGMII) { 503 ethtool_link_ksettings_add_link_mode(ks, supported, 504 1000baseT_Full); 505 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_1GB) 506 ethtool_link_ksettings_add_link_mode(ks, advertising, 507 1000baseT_Full); 508 if (test_bit(I40E_HW_CAP_100M_SGMII, pf->hw.caps)) { 509 ethtool_link_ksettings_add_link_mode(ks, supported, 510 100baseT_Full); 511 ethtool_link_ksettings_add_link_mode(ks, advertising, 512 100baseT_Full); 513 } 514 } 515 if (phy_types & I40E_CAP_PHY_TYPE_XAUI || 516 phy_types & I40E_CAP_PHY_TYPE_XFI || 517 phy_types & I40E_CAP_PHY_TYPE_SFI || 518 phy_types & I40E_CAP_PHY_TYPE_10GBASE_SFPP_CU || 519 phy_types & I40E_CAP_PHY_TYPE_10GBASE_AOC) { 520 ethtool_link_ksettings_add_link_mode(ks, supported, 521 10000baseT_Full); 522 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_10GB) 523 ethtool_link_ksettings_add_link_mode(ks, advertising, 524 10000baseT_Full); 525 } 526 if (phy_types & I40E_CAP_PHY_TYPE_10GBASE_T) { 527 ethtool_link_ksettings_add_link_mode(ks, supported, 528 10000baseT_Full); 529 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_10GB) 530 ethtool_link_ksettings_add_link_mode(ks, advertising, 531 10000baseT_Full); 532 } 533 if (phy_types & I40E_CAP_PHY_TYPE_2_5GBASE_T) { 534 ethtool_link_ksettings_add_link_mode(ks, supported, 535 2500baseT_Full); 536 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_2_5GB) 537 ethtool_link_ksettings_add_link_mode(ks, advertising, 538 2500baseT_Full); 539 } 540 if (phy_types & I40E_CAP_PHY_TYPE_5GBASE_T) { 541 ethtool_link_ksettings_add_link_mode(ks, supported, 542 5000baseT_Full); 543 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_5GB) 544 ethtool_link_ksettings_add_link_mode(ks, advertising, 545 5000baseT_Full); 546 } 547 if (phy_types & I40E_CAP_PHY_TYPE_XLAUI || 548 phy_types & I40E_CAP_PHY_TYPE_XLPPI || 549 phy_types & I40E_CAP_PHY_TYPE_40GBASE_AOC) 550 ethtool_link_ksettings_add_link_mode(ks, supported, 551 40000baseCR4_Full); 552 if (phy_types & I40E_CAP_PHY_TYPE_40GBASE_CR4_CU || 553 phy_types & I40E_CAP_PHY_TYPE_40GBASE_CR4) { 554 ethtool_link_ksettings_add_link_mode(ks, supported, 555 40000baseCR4_Full); 556 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_40GB) 557 ethtool_link_ksettings_add_link_mode(ks, advertising, 558 40000baseCR4_Full); 559 } 560 if (phy_types & I40E_CAP_PHY_TYPE_100BASE_TX) { 561 ethtool_link_ksettings_add_link_mode(ks, supported, 562 100baseT_Full); 563 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_100MB) 564 ethtool_link_ksettings_add_link_mode(ks, advertising, 565 100baseT_Full); 566 } 567 if (phy_types & I40E_CAP_PHY_TYPE_1000BASE_T) { 568 ethtool_link_ksettings_add_link_mode(ks, supported, 569 1000baseT_Full); 570 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_1GB) 571 ethtool_link_ksettings_add_link_mode(ks, advertising, 572 1000baseT_Full); 573 } 574 if (phy_types & I40E_CAP_PHY_TYPE_40GBASE_SR4) { 575 ethtool_link_ksettings_add_link_mode(ks, supported, 576 40000baseSR4_Full); 577 ethtool_link_ksettings_add_link_mode(ks, advertising, 578 40000baseSR4_Full); 579 } 580 if (phy_types & I40E_CAP_PHY_TYPE_40GBASE_LR4) { 581 ethtool_link_ksettings_add_link_mode(ks, supported, 582 40000baseLR4_Full); 583 ethtool_link_ksettings_add_link_mode(ks, advertising, 584 40000baseLR4_Full); 585 } 586 if (phy_types & I40E_CAP_PHY_TYPE_40GBASE_KR4) { 587 ethtool_link_ksettings_add_link_mode(ks, supported, 588 40000baseKR4_Full); 589 ethtool_link_ksettings_add_link_mode(ks, advertising, 590 40000baseKR4_Full); 591 } 592 if (phy_types & I40E_CAP_PHY_TYPE_20GBASE_KR2) { 593 ethtool_link_ksettings_add_link_mode(ks, supported, 594 20000baseKR2_Full); 595 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_20GB) 596 ethtool_link_ksettings_add_link_mode(ks, advertising, 597 20000baseKR2_Full); 598 } 599 if (phy_types & I40E_CAP_PHY_TYPE_10GBASE_KX4) { 600 ethtool_link_ksettings_add_link_mode(ks, supported, 601 10000baseKX4_Full); 602 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_10GB) 603 ethtool_link_ksettings_add_link_mode(ks, advertising, 604 10000baseKX4_Full); 605 } 606 if (phy_types & I40E_CAP_PHY_TYPE_10GBASE_KR && 607 !test_bit(I40E_HW_CAP_CRT_RETIMER, pf->hw.caps)) { 608 ethtool_link_ksettings_add_link_mode(ks, supported, 609 10000baseKR_Full); 610 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_10GB) 611 ethtool_link_ksettings_add_link_mode(ks, advertising, 612 10000baseKR_Full); 613 } 614 if (phy_types & I40E_CAP_PHY_TYPE_1000BASE_KX && 615 !test_bit(I40E_HW_CAP_CRT_RETIMER, pf->hw.caps)) { 616 ethtool_link_ksettings_add_link_mode(ks, supported, 617 1000baseKX_Full); 618 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_1GB) 619 ethtool_link_ksettings_add_link_mode(ks, advertising, 620 1000baseKX_Full); 621 } 622 /* need to add 25G PHY types */ 623 if (phy_types & I40E_CAP_PHY_TYPE_25GBASE_KR) { 624 ethtool_link_ksettings_add_link_mode(ks, supported, 625 25000baseKR_Full); 626 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_25GB) 627 ethtool_link_ksettings_add_link_mode(ks, advertising, 628 25000baseKR_Full); 629 } 630 if (phy_types & I40E_CAP_PHY_TYPE_25GBASE_CR) { 631 ethtool_link_ksettings_add_link_mode(ks, supported, 632 25000baseCR_Full); 633 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_25GB) 634 ethtool_link_ksettings_add_link_mode(ks, advertising, 635 25000baseCR_Full); 636 } 637 if (phy_types & I40E_CAP_PHY_TYPE_25GBASE_SR || 638 phy_types & I40E_CAP_PHY_TYPE_25GBASE_LR) { 639 ethtool_link_ksettings_add_link_mode(ks, supported, 640 25000baseSR_Full); 641 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_25GB) 642 ethtool_link_ksettings_add_link_mode(ks, advertising, 643 25000baseSR_Full); 644 } 645 if (phy_types & I40E_CAP_PHY_TYPE_25GBASE_AOC || 646 phy_types & I40E_CAP_PHY_TYPE_25GBASE_ACC) { 647 ethtool_link_ksettings_add_link_mode(ks, supported, 648 25000baseCR_Full); 649 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_25GB) 650 ethtool_link_ksettings_add_link_mode(ks, advertising, 651 25000baseCR_Full); 652 } 653 if (phy_types & I40E_CAP_PHY_TYPE_25GBASE_KR || 654 phy_types & I40E_CAP_PHY_TYPE_25GBASE_CR || 655 phy_types & I40E_CAP_PHY_TYPE_25GBASE_SR || 656 phy_types & I40E_CAP_PHY_TYPE_25GBASE_LR || 657 phy_types & I40E_CAP_PHY_TYPE_25GBASE_AOC || 658 phy_types & I40E_CAP_PHY_TYPE_25GBASE_ACC) { 659 ethtool_link_ksettings_add_link_mode(ks, supported, FEC_NONE); 660 ethtool_link_ksettings_add_link_mode(ks, supported, FEC_RS); 661 ethtool_link_ksettings_add_link_mode(ks, supported, FEC_BASER); 662 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_25GB) { 663 ethtool_link_ksettings_add_link_mode(ks, advertising, 664 FEC_NONE); 665 ethtool_link_ksettings_add_link_mode(ks, advertising, 666 FEC_RS); 667 ethtool_link_ksettings_add_link_mode(ks, advertising, 668 FEC_BASER); 669 } 670 } 671 /* need to add new 10G PHY types */ 672 if (phy_types & I40E_CAP_PHY_TYPE_10GBASE_CR1 || 673 phy_types & I40E_CAP_PHY_TYPE_10GBASE_CR1_CU) { 674 ethtool_link_ksettings_add_link_mode(ks, supported, 675 10000baseCR_Full); 676 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_10GB) 677 ethtool_link_ksettings_add_link_mode(ks, advertising, 678 10000baseCR_Full); 679 } 680 if (phy_types & I40E_CAP_PHY_TYPE_10GBASE_SR) { 681 ethtool_link_ksettings_add_link_mode(ks, supported, 682 10000baseSR_Full); 683 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_10GB) 684 ethtool_link_ksettings_add_link_mode(ks, advertising, 685 10000baseSR_Full); 686 } 687 if (phy_types & I40E_CAP_PHY_TYPE_10GBASE_LR) { 688 ethtool_link_ksettings_add_link_mode(ks, supported, 689 10000baseLR_Full); 690 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_10GB) 691 ethtool_link_ksettings_add_link_mode(ks, advertising, 692 10000baseLR_Full); 693 } 694 if (phy_types & I40E_CAP_PHY_TYPE_1000BASE_SX || 695 phy_types & I40E_CAP_PHY_TYPE_1000BASE_LX || 696 phy_types & I40E_CAP_PHY_TYPE_1000BASE_T_OPTICAL) { 697 ethtool_link_ksettings_add_link_mode(ks, supported, 698 1000baseX_Full); 699 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_1GB) 700 ethtool_link_ksettings_add_link_mode(ks, advertising, 701 1000baseX_Full); 702 } 703 /* Autoneg PHY types */ 704 if (phy_types & I40E_CAP_PHY_TYPE_SGMII || 705 phy_types & I40E_CAP_PHY_TYPE_40GBASE_KR4 || 706 phy_types & I40E_CAP_PHY_TYPE_40GBASE_CR4_CU || 707 phy_types & I40E_CAP_PHY_TYPE_40GBASE_CR4 || 708 phy_types & I40E_CAP_PHY_TYPE_25GBASE_SR || 709 phy_types & I40E_CAP_PHY_TYPE_25GBASE_LR || 710 phy_types & I40E_CAP_PHY_TYPE_25GBASE_KR || 711 phy_types & I40E_CAP_PHY_TYPE_25GBASE_CR || 712 phy_types & I40E_CAP_PHY_TYPE_20GBASE_KR2 || 713 phy_types & I40E_CAP_PHY_TYPE_10GBASE_SR || 714 phy_types & I40E_CAP_PHY_TYPE_10GBASE_LR || 715 phy_types & I40E_CAP_PHY_TYPE_10GBASE_KX4 || 716 phy_types & I40E_CAP_PHY_TYPE_10GBASE_KR || 717 phy_types & I40E_CAP_PHY_TYPE_10GBASE_CR1_CU || 718 phy_types & I40E_CAP_PHY_TYPE_10GBASE_CR1 || 719 phy_types & I40E_CAP_PHY_TYPE_10GBASE_T || 720 phy_types & I40E_CAP_PHY_TYPE_5GBASE_T || 721 phy_types & I40E_CAP_PHY_TYPE_2_5GBASE_T || 722 phy_types & I40E_CAP_PHY_TYPE_1000BASE_T_OPTICAL || 723 phy_types & I40E_CAP_PHY_TYPE_1000BASE_T || 724 phy_types & I40E_CAP_PHY_TYPE_1000BASE_SX || 725 phy_types & I40E_CAP_PHY_TYPE_1000BASE_LX || 726 phy_types & I40E_CAP_PHY_TYPE_1000BASE_KX || 727 phy_types & I40E_CAP_PHY_TYPE_100BASE_TX) { 728 ethtool_link_ksettings_add_link_mode(ks, supported, 729 Autoneg); 730 ethtool_link_ksettings_add_link_mode(ks, advertising, 731 Autoneg); 732 } 733} 734 735/** 736 * i40e_get_settings_link_up_fec - Get the FEC mode encoding from mask 737 * @req_fec_info: mask request FEC info 738 * @ks: ethtool ksettings to fill in 739 **/ 740static void i40e_get_settings_link_up_fec(u8 req_fec_info, 741 struct ethtool_link_ksettings *ks) 742{ 743 ethtool_link_ksettings_add_link_mode(ks, supported, FEC_NONE); 744 ethtool_link_ksettings_add_link_mode(ks, supported, FEC_RS); 745 ethtool_link_ksettings_add_link_mode(ks, supported, FEC_BASER); 746 747 if ((I40E_AQ_SET_FEC_REQUEST_RS & req_fec_info) && 748 (I40E_AQ_SET_FEC_REQUEST_KR & req_fec_info)) { 749 ethtool_link_ksettings_add_link_mode(ks, advertising, 750 FEC_NONE); 751 ethtool_link_ksettings_add_link_mode(ks, advertising, 752 FEC_BASER); 753 ethtool_link_ksettings_add_link_mode(ks, advertising, FEC_RS); 754 } else if (I40E_AQ_SET_FEC_REQUEST_RS & req_fec_info) { 755 ethtool_link_ksettings_add_link_mode(ks, advertising, FEC_RS); 756 } else if (I40E_AQ_SET_FEC_REQUEST_KR & req_fec_info) { 757 ethtool_link_ksettings_add_link_mode(ks, advertising, 758 FEC_BASER); 759 } else { 760 ethtool_link_ksettings_add_link_mode(ks, advertising, 761 FEC_NONE); 762 } 763} 764 765/** 766 * i40e_get_settings_link_up - Get the Link settings for when link is up 767 * @hw: hw structure 768 * @ks: ethtool ksettings to fill in 769 * @netdev: network interface device structure 770 * @pf: pointer to physical function struct 771 **/ 772static void i40e_get_settings_link_up(struct i40e_hw *hw, 773 struct ethtool_link_ksettings *ks, 774 struct net_device *netdev, 775 struct i40e_pf *pf) 776{ 777 struct i40e_link_status *hw_link_info = &hw->phy.link_info; 778 struct ethtool_link_ksettings cap_ksettings; 779 u32 link_speed = hw_link_info->link_speed; 780 781 /* Initialize supported and advertised settings based on phy settings */ 782 switch (hw_link_info->phy_type) { 783 case I40E_PHY_TYPE_40GBASE_CR4: 784 case I40E_PHY_TYPE_40GBASE_CR4_CU: 785 ethtool_link_ksettings_add_link_mode(ks, supported, Autoneg); 786 ethtool_link_ksettings_add_link_mode(ks, supported, 787 40000baseCR4_Full); 788 ethtool_link_ksettings_add_link_mode(ks, advertising, Autoneg); 789 ethtool_link_ksettings_add_link_mode(ks, advertising, 790 40000baseCR4_Full); 791 break; 792 case I40E_PHY_TYPE_XLAUI: 793 case I40E_PHY_TYPE_XLPPI: 794 case I40E_PHY_TYPE_40GBASE_AOC: 795 ethtool_link_ksettings_add_link_mode(ks, supported, 796 40000baseCR4_Full); 797 ethtool_link_ksettings_add_link_mode(ks, advertising, 798 40000baseCR4_Full); 799 break; 800 case I40E_PHY_TYPE_40GBASE_SR4: 801 ethtool_link_ksettings_add_link_mode(ks, supported, 802 40000baseSR4_Full); 803 ethtool_link_ksettings_add_link_mode(ks, advertising, 804 40000baseSR4_Full); 805 break; 806 case I40E_PHY_TYPE_40GBASE_LR4: 807 ethtool_link_ksettings_add_link_mode(ks, supported, 808 40000baseLR4_Full); 809 ethtool_link_ksettings_add_link_mode(ks, advertising, 810 40000baseLR4_Full); 811 break; 812 case I40E_PHY_TYPE_25GBASE_SR: 813 case I40E_PHY_TYPE_25GBASE_LR: 814 case I40E_PHY_TYPE_10GBASE_SR: 815 case I40E_PHY_TYPE_10GBASE_LR: 816 case I40E_PHY_TYPE_1000BASE_SX: 817 case I40E_PHY_TYPE_1000BASE_LX: 818 ethtool_link_ksettings_add_link_mode(ks, supported, Autoneg); 819 ethtool_link_ksettings_add_link_mode(ks, advertising, Autoneg); 820 ethtool_link_ksettings_add_link_mode(ks, supported, 821 25000baseSR_Full); 822 ethtool_link_ksettings_add_link_mode(ks, advertising, 823 25000baseSR_Full); 824 i40e_get_settings_link_up_fec(hw_link_info->req_fec_info, ks); 825 ethtool_link_ksettings_add_link_mode(ks, supported, 826 10000baseSR_Full); 827 ethtool_link_ksettings_add_link_mode(ks, advertising, 828 10000baseSR_Full); 829 ethtool_link_ksettings_add_link_mode(ks, supported, 830 10000baseLR_Full); 831 ethtool_link_ksettings_add_link_mode(ks, advertising, 832 10000baseLR_Full); 833 ethtool_link_ksettings_add_link_mode(ks, supported, 834 1000baseX_Full); 835 ethtool_link_ksettings_add_link_mode(ks, advertising, 836 1000baseX_Full); 837 ethtool_link_ksettings_add_link_mode(ks, supported, 838 10000baseT_Full); 839 if (hw_link_info->module_type[2] & 840 I40E_MODULE_TYPE_1000BASE_SX || 841 hw_link_info->module_type[2] & 842 I40E_MODULE_TYPE_1000BASE_LX) { 843 ethtool_link_ksettings_add_link_mode(ks, supported, 844 1000baseT_Full); 845 if (hw_link_info->requested_speeds & 846 I40E_LINK_SPEED_1GB) 847 ethtool_link_ksettings_add_link_mode( 848 ks, advertising, 1000baseT_Full); 849 } 850 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_10GB) 851 ethtool_link_ksettings_add_link_mode(ks, advertising, 852 10000baseT_Full); 853 break; 854 case I40E_PHY_TYPE_10GBASE_T: 855 case I40E_PHY_TYPE_5GBASE_T_LINK_STATUS: 856 case I40E_PHY_TYPE_2_5GBASE_T_LINK_STATUS: 857 case I40E_PHY_TYPE_1000BASE_T: 858 case I40E_PHY_TYPE_100BASE_TX: 859 ethtool_link_ksettings_add_link_mode(ks, supported, Autoneg); 860 ethtool_link_ksettings_add_link_mode(ks, supported, 861 10000baseT_Full); 862 ethtool_link_ksettings_add_link_mode(ks, supported, 863 5000baseT_Full); 864 ethtool_link_ksettings_add_link_mode(ks, supported, 865 2500baseT_Full); 866 ethtool_link_ksettings_add_link_mode(ks, supported, 867 1000baseT_Full); 868 ethtool_link_ksettings_add_link_mode(ks, supported, 869 100baseT_Full); 870 ethtool_link_ksettings_add_link_mode(ks, advertising, Autoneg); 871 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_10GB) 872 ethtool_link_ksettings_add_link_mode(ks, advertising, 873 10000baseT_Full); 874 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_5GB) 875 ethtool_link_ksettings_add_link_mode(ks, advertising, 876 5000baseT_Full); 877 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_2_5GB) 878 ethtool_link_ksettings_add_link_mode(ks, advertising, 879 2500baseT_Full); 880 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_1GB) 881 ethtool_link_ksettings_add_link_mode(ks, advertising, 882 1000baseT_Full); 883 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_100MB) 884 ethtool_link_ksettings_add_link_mode(ks, advertising, 885 100baseT_Full); 886 break; 887 case I40E_PHY_TYPE_1000BASE_T_OPTICAL: 888 ethtool_link_ksettings_add_link_mode(ks, supported, Autoneg); 889 ethtool_link_ksettings_add_link_mode(ks, supported, 890 1000baseT_Full); 891 ethtool_link_ksettings_add_link_mode(ks, advertising, Autoneg); 892 ethtool_link_ksettings_add_link_mode(ks, advertising, 893 1000baseT_Full); 894 break; 895 case I40E_PHY_TYPE_10GBASE_CR1_CU: 896 case I40E_PHY_TYPE_10GBASE_CR1: 897 ethtool_link_ksettings_add_link_mode(ks, supported, Autoneg); 898 ethtool_link_ksettings_add_link_mode(ks, supported, 899 10000baseT_Full); 900 ethtool_link_ksettings_add_link_mode(ks, advertising, Autoneg); 901 ethtool_link_ksettings_add_link_mode(ks, advertising, 902 10000baseT_Full); 903 break; 904 case I40E_PHY_TYPE_XAUI: 905 case I40E_PHY_TYPE_XFI: 906 case I40E_PHY_TYPE_SFI: 907 case I40E_PHY_TYPE_10GBASE_SFPP_CU: 908 case I40E_PHY_TYPE_10GBASE_AOC: 909 ethtool_link_ksettings_add_link_mode(ks, supported, 910 10000baseT_Full); 911 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_10GB) 912 ethtool_link_ksettings_add_link_mode(ks, advertising, 913 10000baseT_Full); 914 i40e_get_settings_link_up_fec(hw_link_info->req_fec_info, ks); 915 break; 916 case I40E_PHY_TYPE_SGMII: 917 ethtool_link_ksettings_add_link_mode(ks, supported, Autoneg); 918 ethtool_link_ksettings_add_link_mode(ks, supported, 919 1000baseT_Full); 920 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_1GB) 921 ethtool_link_ksettings_add_link_mode(ks, advertising, 922 1000baseT_Full); 923 if (test_bit(I40E_HW_CAP_100M_SGMII, pf->hw.caps)) { 924 ethtool_link_ksettings_add_link_mode(ks, supported, 925 100baseT_Full); 926 if (hw_link_info->requested_speeds & 927 I40E_LINK_SPEED_100MB) 928 ethtool_link_ksettings_add_link_mode( 929 ks, advertising, 100baseT_Full); 930 } 931 break; 932 case I40E_PHY_TYPE_40GBASE_KR4: 933 case I40E_PHY_TYPE_25GBASE_KR: 934 case I40E_PHY_TYPE_20GBASE_KR2: 935 case I40E_PHY_TYPE_10GBASE_KR: 936 case I40E_PHY_TYPE_10GBASE_KX4: 937 case I40E_PHY_TYPE_1000BASE_KX: 938 ethtool_link_ksettings_add_link_mode(ks, supported, 939 40000baseKR4_Full); 940 ethtool_link_ksettings_add_link_mode(ks, supported, 941 25000baseKR_Full); 942 ethtool_link_ksettings_add_link_mode(ks, supported, 943 20000baseKR2_Full); 944 ethtool_link_ksettings_add_link_mode(ks, supported, 945 10000baseKR_Full); 946 ethtool_link_ksettings_add_link_mode(ks, supported, 947 10000baseKX4_Full); 948 ethtool_link_ksettings_add_link_mode(ks, supported, 949 1000baseKX_Full); 950 ethtool_link_ksettings_add_link_mode(ks, supported, Autoneg); 951 ethtool_link_ksettings_add_link_mode(ks, advertising, 952 40000baseKR4_Full); 953 ethtool_link_ksettings_add_link_mode(ks, advertising, 954 25000baseKR_Full); 955 i40e_get_settings_link_up_fec(hw_link_info->req_fec_info, ks); 956 ethtool_link_ksettings_add_link_mode(ks, advertising, 957 20000baseKR2_Full); 958 ethtool_link_ksettings_add_link_mode(ks, advertising, 959 10000baseKR_Full); 960 ethtool_link_ksettings_add_link_mode(ks, advertising, 961 10000baseKX4_Full); 962 ethtool_link_ksettings_add_link_mode(ks, advertising, 963 1000baseKX_Full); 964 ethtool_link_ksettings_add_link_mode(ks, advertising, Autoneg); 965 break; 966 case I40E_PHY_TYPE_25GBASE_CR: 967 ethtool_link_ksettings_add_link_mode(ks, supported, Autoneg); 968 ethtool_link_ksettings_add_link_mode(ks, advertising, Autoneg); 969 ethtool_link_ksettings_add_link_mode(ks, supported, 970 25000baseCR_Full); 971 ethtool_link_ksettings_add_link_mode(ks, advertising, 972 25000baseCR_Full); 973 i40e_get_settings_link_up_fec(hw_link_info->req_fec_info, ks); 974 975 break; 976 case I40E_PHY_TYPE_25GBASE_AOC: 977 case I40E_PHY_TYPE_25GBASE_ACC: 978 ethtool_link_ksettings_add_link_mode(ks, supported, Autoneg); 979 ethtool_link_ksettings_add_link_mode(ks, advertising, Autoneg); 980 ethtool_link_ksettings_add_link_mode(ks, supported, 981 25000baseCR_Full); 982 ethtool_link_ksettings_add_link_mode(ks, advertising, 983 25000baseCR_Full); 984 i40e_get_settings_link_up_fec(hw_link_info->req_fec_info, ks); 985 986 ethtool_link_ksettings_add_link_mode(ks, supported, 987 10000baseCR_Full); 988 ethtool_link_ksettings_add_link_mode(ks, advertising, 989 10000baseCR_Full); 990 break; 991 default: 992 /* if we got here and link is up something bad is afoot */ 993 netdev_info(netdev, 994 "WARNING: Link is up but PHY type 0x%x is not recognized, or incorrect cable is in use\n", 995 hw_link_info->phy_type); 996 } 997 998 /* Now that we've worked out everything that could be supported by the 999 * current PHY type, get what is supported by the NVM and intersect 1000 * them to get what is truly supported 1001 */ 1002 memset(&cap_ksettings, 0, sizeof(struct ethtool_link_ksettings)); 1003 i40e_phy_type_to_ethtool(pf, &cap_ksettings); 1004 ethtool_intersect_link_masks(ks, &cap_ksettings); 1005 1006 /* Set speed and duplex */ 1007 switch (link_speed) { 1008 case I40E_LINK_SPEED_40GB: 1009 ks->base.speed = SPEED_40000; 1010 break; 1011 case I40E_LINK_SPEED_25GB: 1012 ks->base.speed = SPEED_25000; 1013 break; 1014 case I40E_LINK_SPEED_20GB: 1015 ks->base.speed = SPEED_20000; 1016 break; 1017 case I40E_LINK_SPEED_10GB: 1018 ks->base.speed = SPEED_10000; 1019 break; 1020 case I40E_LINK_SPEED_5GB: 1021 ks->base.speed = SPEED_5000; 1022 break; 1023 case I40E_LINK_SPEED_2_5GB: 1024 ks->base.speed = SPEED_2500; 1025 break; 1026 case I40E_LINK_SPEED_1GB: 1027 ks->base.speed = SPEED_1000; 1028 break; 1029 case I40E_LINK_SPEED_100MB: 1030 ks->base.speed = SPEED_100; 1031 break; 1032 default: 1033 ks->base.speed = SPEED_UNKNOWN; 1034 break; 1035 } 1036 ks->base.duplex = DUPLEX_FULL; 1037} 1038 1039/** 1040 * i40e_get_settings_link_down - Get the Link settings for when link is down 1041 * @hw: hw structure 1042 * @ks: ethtool ksettings to fill in 1043 * @pf: pointer to physical function struct 1044 * 1045 * Reports link settings that can be determined when link is down 1046 **/ 1047static void i40e_get_settings_link_down(struct i40e_hw *hw, 1048 struct ethtool_link_ksettings *ks, 1049 struct i40e_pf *pf) 1050{ 1051 /* link is down and the driver needs to fall back on 1052 * supported phy types to figure out what info to display 1053 */ 1054 i40e_phy_type_to_ethtool(pf, ks); 1055 1056 /* With no link speed and duplex are unknown */ 1057 ks->base.speed = SPEED_UNKNOWN; 1058 ks->base.duplex = DUPLEX_UNKNOWN; 1059} 1060 1061/** 1062 * i40e_get_link_ksettings - Get Link Speed and Duplex settings 1063 * @netdev: network interface device structure 1064 * @ks: ethtool ksettings 1065 * 1066 * Reports speed/duplex settings based on media_type 1067 **/ 1068static int i40e_get_link_ksettings(struct net_device *netdev, 1069 struct ethtool_link_ksettings *ks) 1070{ 1071 struct i40e_netdev_priv *np = netdev_priv(netdev); 1072 struct i40e_pf *pf = np->vsi->back; 1073 struct i40e_hw *hw = &pf->hw; 1074 struct i40e_link_status *hw_link_info = &hw->phy.link_info; 1075 bool link_up = hw_link_info->link_info & I40E_AQ_LINK_UP; 1076 1077 ethtool_link_ksettings_zero_link_mode(ks, supported); 1078 ethtool_link_ksettings_zero_link_mode(ks, advertising); 1079 1080 if (link_up) 1081 i40e_get_settings_link_up(hw, ks, netdev, pf); 1082 else 1083 i40e_get_settings_link_down(hw, ks, pf); 1084 1085 /* Now set the settings that don't rely on link being up/down */ 1086 /* Set autoneg settings */ 1087 ks->base.autoneg = ((hw_link_info->an_info & I40E_AQ_AN_COMPLETED) ? 1088 AUTONEG_ENABLE : AUTONEG_DISABLE); 1089 1090 /* Set media type settings */ 1091 switch (hw->phy.media_type) { 1092 case I40E_MEDIA_TYPE_BACKPLANE: 1093 ethtool_link_ksettings_add_link_mode(ks, supported, Autoneg); 1094 ethtool_link_ksettings_add_link_mode(ks, supported, Backplane); 1095 ethtool_link_ksettings_add_link_mode(ks, advertising, Autoneg); 1096 ethtool_link_ksettings_add_link_mode(ks, advertising, 1097 Backplane); 1098 ks->base.port = PORT_NONE; 1099 break; 1100 case I40E_MEDIA_TYPE_BASET: 1101 ethtool_link_ksettings_add_link_mode(ks, supported, TP); 1102 ethtool_link_ksettings_add_link_mode(ks, advertising, TP); 1103 ks->base.port = PORT_TP; 1104 break; 1105 case I40E_MEDIA_TYPE_DA: 1106 case I40E_MEDIA_TYPE_CX4: 1107 ethtool_link_ksettings_add_link_mode(ks, supported, FIBRE); 1108 ethtool_link_ksettings_add_link_mode(ks, advertising, FIBRE); 1109 ks->base.port = PORT_DA; 1110 break; 1111 case I40E_MEDIA_TYPE_FIBER: 1112 ethtool_link_ksettings_add_link_mode(ks, supported, FIBRE); 1113 ethtool_link_ksettings_add_link_mode(ks, advertising, FIBRE); 1114 ks->base.port = PORT_FIBRE; 1115 break; 1116 case I40E_MEDIA_TYPE_UNKNOWN: 1117 default: 1118 ks->base.port = PORT_OTHER; 1119 break; 1120 } 1121 1122 /* Set flow control settings */ 1123 ethtool_link_ksettings_add_link_mode(ks, supported, Pause); 1124 ethtool_link_ksettings_add_link_mode(ks, supported, Asym_Pause); 1125 1126 switch (hw->fc.requested_mode) { 1127 case I40E_FC_FULL: 1128 ethtool_link_ksettings_add_link_mode(ks, advertising, Pause); 1129 break; 1130 case I40E_FC_TX_PAUSE: 1131 ethtool_link_ksettings_add_link_mode(ks, advertising, 1132 Asym_Pause); 1133 break; 1134 case I40E_FC_RX_PAUSE: 1135 ethtool_link_ksettings_add_link_mode(ks, advertising, Pause); 1136 ethtool_link_ksettings_add_link_mode(ks, advertising, 1137 Asym_Pause); 1138 break; 1139 default: 1140 ethtool_link_ksettings_del_link_mode(ks, advertising, Pause); 1141 ethtool_link_ksettings_del_link_mode(ks, advertising, 1142 Asym_Pause); 1143 break; 1144 } 1145 1146 return 0; 1147} 1148 1149#define I40E_LBIT_SIZE 8 1150/** 1151 * i40e_speed_to_link_speed - Translate decimal speed to i40e_aq_link_speed 1152 * @speed: speed in decimal 1153 * @ks: ethtool ksettings 1154 * 1155 * Return i40e_aq_link_speed based on speed 1156 **/ 1157static enum i40e_aq_link_speed 1158i40e_speed_to_link_speed(__u32 speed, const struct ethtool_link_ksettings *ks) 1159{ 1160 enum i40e_aq_link_speed link_speed = I40E_LINK_SPEED_UNKNOWN; 1161 bool speed_changed = false; 1162 int i, j; 1163 1164 static const struct { 1165 __u32 speed; 1166 enum i40e_aq_link_speed link_speed; 1167 __u8 bit[I40E_LBIT_SIZE]; 1168 } i40e_speed_lut[] = { 1169#define I40E_LBIT(mode) ETHTOOL_LINK_MODE_ ## mode ##_Full_BIT 1170 {SPEED_100, I40E_LINK_SPEED_100MB, {I40E_LBIT(100baseT)} }, 1171 {SPEED_1000, I40E_LINK_SPEED_1GB, 1172 {I40E_LBIT(1000baseT), I40E_LBIT(1000baseX), 1173 I40E_LBIT(1000baseKX)} }, 1174 {SPEED_10000, I40E_LINK_SPEED_10GB, 1175 {I40E_LBIT(10000baseT), I40E_LBIT(10000baseKR), 1176 I40E_LBIT(10000baseLR), I40E_LBIT(10000baseCR), 1177 I40E_LBIT(10000baseSR), I40E_LBIT(10000baseKX4)} }, 1178 1179 {SPEED_25000, I40E_LINK_SPEED_25GB, 1180 {I40E_LBIT(25000baseCR), I40E_LBIT(25000baseKR), 1181 I40E_LBIT(25000baseSR)} }, 1182 {SPEED_40000, I40E_LINK_SPEED_40GB, 1183 {I40E_LBIT(40000baseKR4), I40E_LBIT(40000baseCR4), 1184 I40E_LBIT(40000baseSR4), I40E_LBIT(40000baseLR4)} }, 1185 {SPEED_20000, I40E_LINK_SPEED_20GB, 1186 {I40E_LBIT(20000baseKR2)} }, 1187 {SPEED_2500, I40E_LINK_SPEED_2_5GB, {I40E_LBIT(2500baseT)} }, 1188 {SPEED_5000, I40E_LINK_SPEED_5GB, {I40E_LBIT(2500baseT)} } 1189#undef I40E_LBIT 1190}; 1191 1192 for (i = 0; i < ARRAY_SIZE(i40e_speed_lut); i++) { 1193 if (i40e_speed_lut[i].speed == speed) { 1194 for (j = 0; j < I40E_LBIT_SIZE; j++) { 1195 if (test_bit(i40e_speed_lut[i].bit[j], 1196 ks->link_modes.supported)) { 1197 speed_changed = true; 1198 break; 1199 } 1200 if (!i40e_speed_lut[i].bit[j]) 1201 break; 1202 } 1203 if (speed_changed) { 1204 link_speed = i40e_speed_lut[i].link_speed; 1205 break; 1206 } 1207 } 1208 } 1209 return link_speed; 1210} 1211 1212#undef I40E_LBIT_SIZE 1213 1214/** 1215 * i40e_set_link_ksettings - Set Speed and Duplex 1216 * @netdev: network interface device structure 1217 * @ks: ethtool ksettings 1218 * 1219 * Set speed/duplex per media_types advertised/forced 1220 **/ 1221static int i40e_set_link_ksettings(struct net_device *netdev, 1222 const struct ethtool_link_ksettings *ks) 1223{ 1224 struct i40e_netdev_priv *np = netdev_priv(netdev); 1225 struct i40e_aq_get_phy_abilities_resp abilities; 1226 struct ethtool_link_ksettings safe_ks; 1227 struct ethtool_link_ksettings copy_ks; 1228 struct i40e_aq_set_phy_config config; 1229 struct i40e_pf *pf = np->vsi->back; 1230 enum i40e_aq_link_speed link_speed; 1231 struct i40e_vsi *vsi = np->vsi; 1232 struct i40e_hw *hw = &pf->hw; 1233 bool autoneg_changed = false; 1234 int timeout = 50; 1235 int status = 0; 1236 int err = 0; 1237 __u32 speed; 1238 u8 autoneg; 1239 1240 /* Changing port settings is not supported if this isn't the 1241 * port's controlling PF 1242 */ 1243 if (hw->partition_id != 1) { 1244 i40e_partition_setting_complaint(pf); 1245 return -EOPNOTSUPP; 1246 } 1247 if (vsi->type != I40E_VSI_MAIN) 1248 return -EOPNOTSUPP; 1249 if (hw->phy.media_type != I40E_MEDIA_TYPE_BASET && 1250 hw->phy.media_type != I40E_MEDIA_TYPE_FIBER && 1251 hw->phy.media_type != I40E_MEDIA_TYPE_BACKPLANE && 1252 hw->phy.media_type != I40E_MEDIA_TYPE_DA && 1253 hw->phy.link_info.link_info & I40E_AQ_LINK_UP) 1254 return -EOPNOTSUPP; 1255 if (hw->device_id == I40E_DEV_ID_KX_B || 1256 hw->device_id == I40E_DEV_ID_KX_C || 1257 hw->device_id == I40E_DEV_ID_20G_KR2 || 1258 hw->device_id == I40E_DEV_ID_20G_KR2_A || 1259 hw->device_id == I40E_DEV_ID_25G_B || 1260 hw->device_id == I40E_DEV_ID_KX_X722) { 1261 netdev_info(netdev, "Changing settings is not supported on backplane.\n"); 1262 return -EOPNOTSUPP; 1263 } 1264 1265 /* copy the ksettings to copy_ks to avoid modifying the origin */ 1266 memcpy(©_ks, ks, sizeof(struct ethtool_link_ksettings)); 1267 1268 /* save autoneg out of ksettings */ 1269 autoneg = copy_ks.base.autoneg; 1270 speed = copy_ks.base.speed; 1271 1272 /* get our own copy of the bits to check against */ 1273 memset(&safe_ks, 0, sizeof(struct ethtool_link_ksettings)); 1274 safe_ks.base.cmd = copy_ks.base.cmd; 1275 safe_ks.base.link_mode_masks_nwords = 1276 copy_ks.base.link_mode_masks_nwords; 1277 i40e_get_link_ksettings(netdev, &safe_ks); 1278 1279 /* Get link modes supported by hardware and check against modes 1280 * requested by the user. Return an error if unsupported mode was set. 1281 */ 1282 if (!bitmap_subset(copy_ks.link_modes.advertising, 1283 safe_ks.link_modes.supported, 1284 __ETHTOOL_LINK_MODE_MASK_NBITS)) 1285 return -EINVAL; 1286 1287 /* set autoneg back to what it currently is */ 1288 copy_ks.base.autoneg = safe_ks.base.autoneg; 1289 copy_ks.base.speed = safe_ks.base.speed; 1290 1291 /* If copy_ks.base and safe_ks.base are not the same now, then they are 1292 * trying to set something that we do not support. 1293 */ 1294 if (memcmp(©_ks.base, &safe_ks.base, 1295 sizeof(struct ethtool_link_settings))) { 1296 netdev_err(netdev, "Only speed and autoneg are supported.\n"); 1297 return -EOPNOTSUPP; 1298 } 1299 1300 while (test_and_set_bit(__I40E_CONFIG_BUSY, pf->state)) { 1301 timeout--; 1302 if (!timeout) 1303 return -EBUSY; 1304 usleep_range(1000, 2000); 1305 } 1306 1307 /* Get the current phy config */ 1308 status = i40e_aq_get_phy_capabilities(hw, false, false, &abilities, 1309 NULL); 1310 if (status) { 1311 err = -EAGAIN; 1312 goto done; 1313 } 1314 1315 /* Copy abilities to config in case autoneg is not 1316 * set below 1317 */ 1318 memset(&config, 0, sizeof(struct i40e_aq_set_phy_config)); 1319 config.abilities = abilities.abilities; 1320 1321 /* Check autoneg */ 1322 if (autoneg == AUTONEG_ENABLE) { 1323 /* If autoneg was not already enabled */ 1324 if (!(hw->phy.link_info.an_info & I40E_AQ_AN_COMPLETED)) { 1325 /* If autoneg is not supported, return error */ 1326 if (!ethtool_link_ksettings_test_link_mode(&safe_ks, 1327 supported, 1328 Autoneg)) { 1329 netdev_info(netdev, "Autoneg not supported on this phy\n"); 1330 err = -EINVAL; 1331 goto done; 1332 } 1333 /* Autoneg is allowed to change */ 1334 config.abilities = abilities.abilities | 1335 I40E_AQ_PHY_ENABLE_AN; 1336 autoneg_changed = true; 1337 } 1338 } else { 1339 /* If autoneg is currently enabled */ 1340 if (hw->phy.link_info.an_info & I40E_AQ_AN_COMPLETED) { 1341 /* If autoneg is supported 10GBASE_T is the only PHY 1342 * that can disable it, so otherwise return error 1343 */ 1344 if (ethtool_link_ksettings_test_link_mode(&safe_ks, 1345 supported, 1346 Autoneg) && 1347 hw->phy.media_type != I40E_MEDIA_TYPE_BASET) { 1348 netdev_info(netdev, "Autoneg cannot be disabled on this phy\n"); 1349 err = -EINVAL; 1350 goto done; 1351 } 1352 /* Autoneg is allowed to change */ 1353 config.abilities = abilities.abilities & 1354 ~I40E_AQ_PHY_ENABLE_AN; 1355 autoneg_changed = true; 1356 } 1357 } 1358 1359 if (ethtool_link_ksettings_test_link_mode(ks, advertising, 1360 100baseT_Full)) 1361 config.link_speed |= I40E_LINK_SPEED_100MB; 1362 if (ethtool_link_ksettings_test_link_mode(ks, advertising, 1363 1000baseT_Full) || 1364 ethtool_link_ksettings_test_link_mode(ks, advertising, 1365 1000baseX_Full) || 1366 ethtool_link_ksettings_test_link_mode(ks, advertising, 1367 1000baseKX_Full)) 1368 config.link_speed |= I40E_LINK_SPEED_1GB; 1369 if (ethtool_link_ksettings_test_link_mode(ks, advertising, 1370 10000baseT_Full) || 1371 ethtool_link_ksettings_test_link_mode(ks, advertising, 1372 10000baseKX4_Full) || 1373 ethtool_link_ksettings_test_link_mode(ks, advertising, 1374 10000baseKR_Full) || 1375 ethtool_link_ksettings_test_link_mode(ks, advertising, 1376 10000baseCR_Full) || 1377 ethtool_link_ksettings_test_link_mode(ks, advertising, 1378 10000baseSR_Full) || 1379 ethtool_link_ksettings_test_link_mode(ks, advertising, 1380 10000baseLR_Full)) 1381 config.link_speed |= I40E_LINK_SPEED_10GB; 1382 if (ethtool_link_ksettings_test_link_mode(ks, advertising, 1383 2500baseT_Full)) 1384 config.link_speed |= I40E_LINK_SPEED_2_5GB; 1385 if (ethtool_link_ksettings_test_link_mode(ks, advertising, 1386 5000baseT_Full)) 1387 config.link_speed |= I40E_LINK_SPEED_5GB; 1388 if (ethtool_link_ksettings_test_link_mode(ks, advertising, 1389 20000baseKR2_Full)) 1390 config.link_speed |= I40E_LINK_SPEED_20GB; 1391 if (ethtool_link_ksettings_test_link_mode(ks, advertising, 1392 25000baseCR_Full) || 1393 ethtool_link_ksettings_test_link_mode(ks, advertising, 1394 25000baseKR_Full) || 1395 ethtool_link_ksettings_test_link_mode(ks, advertising, 1396 25000baseSR_Full)) 1397 config.link_speed |= I40E_LINK_SPEED_25GB; 1398 if (ethtool_link_ksettings_test_link_mode(ks, advertising, 1399 40000baseKR4_Full) || 1400 ethtool_link_ksettings_test_link_mode(ks, advertising, 1401 40000baseCR4_Full) || 1402 ethtool_link_ksettings_test_link_mode(ks, advertising, 1403 40000baseSR4_Full) || 1404 ethtool_link_ksettings_test_link_mode(ks, advertising, 1405 40000baseLR4_Full)) 1406 config.link_speed |= I40E_LINK_SPEED_40GB; 1407 1408 /* Autonegotiation must be disabled to change speed */ 1409 if ((speed != SPEED_UNKNOWN && safe_ks.base.speed != speed) && 1410 (autoneg == AUTONEG_DISABLE || 1411 (safe_ks.base.autoneg == AUTONEG_DISABLE && !autoneg_changed))) { 1412 link_speed = i40e_speed_to_link_speed(speed, ks); 1413 if (link_speed == I40E_LINK_SPEED_UNKNOWN) { 1414 netdev_info(netdev, "Given speed is not supported\n"); 1415 err = -EOPNOTSUPP; 1416 goto done; 1417 } else { 1418 config.link_speed = link_speed; 1419 } 1420 } else { 1421 if (safe_ks.base.speed != speed) { 1422 netdev_info(netdev, 1423 "Unable to set speed, disable autoneg\n"); 1424 err = -EOPNOTSUPP; 1425 goto done; 1426 } 1427 } 1428 1429 /* If speed didn't get set, set it to what it currently is. 1430 * This is needed because if advertise is 0 (as it is when autoneg 1431 * is disabled) then speed won't get set. 1432 */ 1433 if (!config.link_speed) 1434 config.link_speed = abilities.link_speed; 1435 if (autoneg_changed || abilities.link_speed != config.link_speed) { 1436 /* copy over the rest of the abilities */ 1437 config.phy_type = abilities.phy_type; 1438 config.phy_type_ext = abilities.phy_type_ext; 1439 config.eee_capability = abilities.eee_capability; 1440 config.eeer = abilities.eeer_val; 1441 config.low_power_ctrl = abilities.d3_lpan; 1442 config.fec_config = abilities.fec_cfg_curr_mod_ext_info & 1443 I40E_AQ_PHY_FEC_CONFIG_MASK; 1444 1445 /* save the requested speeds */ 1446 hw->phy.link_info.requested_speeds = config.link_speed; 1447 /* set link and auto negotiation so changes take effect */ 1448 config.abilities |= I40E_AQ_PHY_ENABLE_ATOMIC_LINK; 1449 /* If link is up put link down */ 1450 if (hw->phy.link_info.link_info & I40E_AQ_LINK_UP) { 1451 /* Tell the OS link is going down, the link will go 1452 * back up when fw says it is ready asynchronously 1453 */ 1454 i40e_print_link_message(vsi, false); 1455 netif_carrier_off(netdev); 1456 netif_tx_stop_all_queues(netdev); 1457 } 1458 1459 /* make the aq call */ 1460 status = i40e_aq_set_phy_config(hw, &config, NULL); 1461 if (status) { 1462 netdev_info(netdev, 1463 "Set phy config failed, err %pe aq_err %s\n", 1464 ERR_PTR(status), 1465 libie_aq_str(hw->aq.asq_last_status)); 1466 err = -EAGAIN; 1467 goto done; 1468 } 1469 1470 status = i40e_update_link_info(hw); 1471 if (status) 1472 netdev_dbg(netdev, 1473 "Updating link info failed with err %pe aq_err %s\n", 1474 ERR_PTR(status), 1475 libie_aq_str(hw->aq.asq_last_status)); 1476 1477 } else { 1478 netdev_info(netdev, "Nothing changed, exiting without setting anything.\n"); 1479 } 1480 1481done: 1482 clear_bit(__I40E_CONFIG_BUSY, pf->state); 1483 1484 return err; 1485} 1486 1487static int i40e_set_fec_cfg(struct net_device *netdev, u8 fec_cfg) 1488{ 1489 struct i40e_netdev_priv *np = netdev_priv(netdev); 1490 struct i40e_aq_get_phy_abilities_resp abilities; 1491 struct i40e_pf *pf = np->vsi->back; 1492 struct i40e_hw *hw = &pf->hw; 1493 int status = 0; 1494 int err = 0; 1495 1496 /* Get the current phy config */ 1497 memset(&abilities, 0, sizeof(abilities)); 1498 status = i40e_aq_get_phy_capabilities(hw, false, false, &abilities, 1499 NULL); 1500 if (status) { 1501 err = -EAGAIN; 1502 goto done; 1503 } 1504 1505 if (abilities.fec_cfg_curr_mod_ext_info != fec_cfg) { 1506 struct i40e_aq_set_phy_config config; 1507 1508 memset(&config, 0, sizeof(config)); 1509 config.phy_type = abilities.phy_type; 1510 config.abilities = abilities.abilities | 1511 I40E_AQ_PHY_ENABLE_ATOMIC_LINK; 1512 config.phy_type_ext = abilities.phy_type_ext; 1513 config.link_speed = abilities.link_speed; 1514 config.eee_capability = abilities.eee_capability; 1515 config.eeer = abilities.eeer_val; 1516 config.low_power_ctrl = abilities.d3_lpan; 1517 config.fec_config = fec_cfg & I40E_AQ_PHY_FEC_CONFIG_MASK; 1518 status = i40e_aq_set_phy_config(hw, &config, NULL); 1519 if (status) { 1520 netdev_info(netdev, 1521 "Set phy config failed, err %pe aq_err %s\n", 1522 ERR_PTR(status), 1523 libie_aq_str(hw->aq.asq_last_status)); 1524 err = -EAGAIN; 1525 goto done; 1526 } 1527 i40e_set_fec_in_flags(fec_cfg, pf->flags); 1528 status = i40e_update_link_info(hw); 1529 if (status) 1530 /* debug level message only due to relation to the link 1531 * itself rather than to the FEC settings 1532 * (e.g. no physical connection etc.) 1533 */ 1534 netdev_dbg(netdev, 1535 "Updating link info failed with err %pe aq_err %s\n", 1536 ERR_PTR(status), 1537 libie_aq_str(hw->aq.asq_last_status)); 1538 } 1539 1540done: 1541 return err; 1542} 1543 1544static int i40e_get_fec_param(struct net_device *netdev, 1545 struct ethtool_fecparam *fecparam) 1546{ 1547 struct i40e_netdev_priv *np = netdev_priv(netdev); 1548 struct i40e_aq_get_phy_abilities_resp abilities; 1549 struct i40e_pf *pf = np->vsi->back; 1550 struct i40e_hw *hw = &pf->hw; 1551 int status = 0; 1552 int err = 0; 1553 u8 fec_cfg; 1554 1555 /* Get the current phy config */ 1556 memset(&abilities, 0, sizeof(abilities)); 1557 status = i40e_aq_get_phy_capabilities(hw, false, false, &abilities, 1558 NULL); 1559 if (status) { 1560 err = -EAGAIN; 1561 goto done; 1562 } 1563 1564 fecparam->fec = 0; 1565 fec_cfg = abilities.fec_cfg_curr_mod_ext_info; 1566 if (fec_cfg & I40E_AQ_SET_FEC_AUTO) 1567 fecparam->fec |= ETHTOOL_FEC_AUTO; 1568 else if (fec_cfg & (I40E_AQ_SET_FEC_REQUEST_RS | 1569 I40E_AQ_SET_FEC_ABILITY_RS)) 1570 fecparam->fec |= ETHTOOL_FEC_RS; 1571 else if (fec_cfg & (I40E_AQ_SET_FEC_REQUEST_KR | 1572 I40E_AQ_SET_FEC_ABILITY_KR)) 1573 fecparam->fec |= ETHTOOL_FEC_BASER; 1574 if (fec_cfg == 0) 1575 fecparam->fec |= ETHTOOL_FEC_OFF; 1576 1577 if (hw->phy.link_info.fec_info & I40E_AQ_CONFIG_FEC_KR_ENA) 1578 fecparam->active_fec = ETHTOOL_FEC_BASER; 1579 else if (hw->phy.link_info.fec_info & I40E_AQ_CONFIG_FEC_RS_ENA) 1580 fecparam->active_fec = ETHTOOL_FEC_RS; 1581 else 1582 fecparam->active_fec = ETHTOOL_FEC_OFF; 1583done: 1584 return err; 1585} 1586 1587static int i40e_set_fec_param(struct net_device *netdev, 1588 struct ethtool_fecparam *fecparam) 1589{ 1590 struct i40e_netdev_priv *np = netdev_priv(netdev); 1591 struct i40e_pf *pf = np->vsi->back; 1592 struct i40e_hw *hw = &pf->hw; 1593 u8 fec_cfg = 0; 1594 1595 if (hw->device_id != I40E_DEV_ID_25G_SFP28 && 1596 hw->device_id != I40E_DEV_ID_25G_B && 1597 hw->device_id != I40E_DEV_ID_KX_X722) 1598 return -EPERM; 1599 1600 if (hw->mac.type == I40E_MAC_X722 && 1601 !test_bit(I40E_HW_CAP_X722_FEC_REQUEST, hw->caps)) { 1602 netdev_err(netdev, "Setting FEC encoding not supported by firmware. Please update the NVM image.\n"); 1603 return -EOPNOTSUPP; 1604 } 1605 1606 switch (fecparam->fec) { 1607 case ETHTOOL_FEC_AUTO: 1608 fec_cfg = I40E_AQ_SET_FEC_AUTO; 1609 break; 1610 case ETHTOOL_FEC_RS: 1611 fec_cfg = (I40E_AQ_SET_FEC_REQUEST_RS | 1612 I40E_AQ_SET_FEC_ABILITY_RS); 1613 break; 1614 case ETHTOOL_FEC_BASER: 1615 fec_cfg = (I40E_AQ_SET_FEC_REQUEST_KR | 1616 I40E_AQ_SET_FEC_ABILITY_KR); 1617 break; 1618 case ETHTOOL_FEC_OFF: 1619 case ETHTOOL_FEC_NONE: 1620 fec_cfg = 0; 1621 break; 1622 default: 1623 dev_warn(&pf->pdev->dev, "Unsupported FEC mode: %d", 1624 fecparam->fec); 1625 return -EINVAL; 1626 } 1627 1628 return i40e_set_fec_cfg(netdev, fec_cfg); 1629} 1630 1631static int i40e_nway_reset(struct net_device *netdev) 1632{ 1633 /* restart autonegotiation */ 1634 struct i40e_netdev_priv *np = netdev_priv(netdev); 1635 struct i40e_pf *pf = np->vsi->back; 1636 struct i40e_hw *hw = &pf->hw; 1637 bool link_up = hw->phy.link_info.link_info & I40E_AQ_LINK_UP; 1638 int ret = 0; 1639 1640 ret = i40e_aq_set_link_restart_an(hw, link_up, NULL); 1641 if (ret) { 1642 netdev_info(netdev, "link restart failed, err %pe aq_err %s\n", 1643 ERR_PTR(ret), 1644 libie_aq_str(hw->aq.asq_last_status)); 1645 return -EIO; 1646 } 1647 1648 return 0; 1649} 1650 1651/** 1652 * i40e_get_pauseparam - Get Flow Control status 1653 * @netdev: netdevice structure 1654 * @pause: buffer to return pause parameters 1655 * 1656 * Return tx/rx-pause status 1657 **/ 1658static void i40e_get_pauseparam(struct net_device *netdev, 1659 struct ethtool_pauseparam *pause) 1660{ 1661 struct i40e_netdev_priv *np = netdev_priv(netdev); 1662 struct i40e_pf *pf = np->vsi->back; 1663 struct i40e_hw *hw = &pf->hw; 1664 struct i40e_link_status *hw_link_info = &hw->phy.link_info; 1665 struct i40e_dcbx_config *dcbx_cfg = &hw->local_dcbx_config; 1666 1667 pause->autoneg = 1668 ((hw_link_info->an_info & I40E_AQ_AN_COMPLETED) ? 1669 AUTONEG_ENABLE : AUTONEG_DISABLE); 1670 1671 /* PFC enabled so report LFC as off */ 1672 if (dcbx_cfg->pfc.pfcenable) { 1673 pause->rx_pause = 0; 1674 pause->tx_pause = 0; 1675 return; 1676 } 1677 1678 if (hw->fc.current_mode == I40E_FC_RX_PAUSE) { 1679 pause->rx_pause = 1; 1680 } else if (hw->fc.current_mode == I40E_FC_TX_PAUSE) { 1681 pause->tx_pause = 1; 1682 } else if (hw->fc.current_mode == I40E_FC_FULL) { 1683 pause->rx_pause = 1; 1684 pause->tx_pause = 1; 1685 } 1686} 1687 1688/** 1689 * i40e_set_pauseparam - Set Flow Control parameter 1690 * @netdev: network interface device structure 1691 * @pause: return tx/rx flow control status 1692 **/ 1693static int i40e_set_pauseparam(struct net_device *netdev, 1694 struct ethtool_pauseparam *pause) 1695{ 1696 struct i40e_netdev_priv *np = netdev_priv(netdev); 1697 struct i40e_pf *pf = np->vsi->back; 1698 struct i40e_vsi *vsi = np->vsi; 1699 struct i40e_hw *hw = &pf->hw; 1700 struct i40e_link_status *hw_link_info = &hw->phy.link_info; 1701 struct i40e_dcbx_config *dcbx_cfg = &hw->local_dcbx_config; 1702 bool link_up = hw_link_info->link_info & I40E_AQ_LINK_UP; 1703 u8 aq_failures; 1704 int err = 0; 1705 int status; 1706 u32 is_an; 1707 1708 /* Changing the port's flow control is not supported if this isn't the 1709 * port's controlling PF 1710 */ 1711 if (hw->partition_id != 1) { 1712 i40e_partition_setting_complaint(pf); 1713 return -EOPNOTSUPP; 1714 } 1715 1716 if (vsi->type != I40E_VSI_MAIN) 1717 return -EOPNOTSUPP; 1718 1719 is_an = hw_link_info->an_info & I40E_AQ_AN_COMPLETED; 1720 if (pause->autoneg != is_an) { 1721 netdev_info(netdev, "To change autoneg please use: ethtool -s <dev> autoneg <on|off>\n"); 1722 return -EOPNOTSUPP; 1723 } 1724 1725 /* If we have link and don't have autoneg */ 1726 if (!test_bit(__I40E_DOWN, pf->state) && !is_an) { 1727 /* Send message that it might not necessarily work*/ 1728 netdev_info(netdev, "Autoneg did not complete so changing settings may not result in an actual change.\n"); 1729 } 1730 1731 if (dcbx_cfg->pfc.pfcenable) { 1732 netdev_info(netdev, 1733 "Priority flow control enabled. Cannot set link flow control.\n"); 1734 return -EOPNOTSUPP; 1735 } 1736 1737 if (pause->rx_pause && pause->tx_pause) 1738 hw->fc.requested_mode = I40E_FC_FULL; 1739 else if (pause->rx_pause && !pause->tx_pause) 1740 hw->fc.requested_mode = I40E_FC_RX_PAUSE; 1741 else if (!pause->rx_pause && pause->tx_pause) 1742 hw->fc.requested_mode = I40E_FC_TX_PAUSE; 1743 else if (!pause->rx_pause && !pause->tx_pause) 1744 hw->fc.requested_mode = I40E_FC_NONE; 1745 else 1746 return -EINVAL; 1747 1748 /* Tell the OS link is going down, the link will go back up when fw 1749 * says it is ready asynchronously 1750 */ 1751 i40e_print_link_message(vsi, false); 1752 netif_carrier_off(netdev); 1753 netif_tx_stop_all_queues(netdev); 1754 1755 /* Set the fc mode and only restart an if link is up*/ 1756 status = i40e_set_fc(hw, &aq_failures, link_up); 1757 1758 if (aq_failures & I40E_SET_FC_AQ_FAIL_GET) { 1759 netdev_info(netdev, "Set fc failed on the get_phy_capabilities call with err %pe aq_err %s\n", 1760 ERR_PTR(status), 1761 libie_aq_str(hw->aq.asq_last_status)); 1762 err = -EAGAIN; 1763 } 1764 if (aq_failures & I40E_SET_FC_AQ_FAIL_SET) { 1765 netdev_info(netdev, "Set fc failed on the set_phy_config call with err %pe aq_err %s\n", 1766 ERR_PTR(status), 1767 libie_aq_str(hw->aq.asq_last_status)); 1768 err = -EAGAIN; 1769 } 1770 if (aq_failures & I40E_SET_FC_AQ_FAIL_UPDATE) { 1771 netdev_info(netdev, "Set fc failed on the get_link_info call with err %pe aq_err %s\n", 1772 ERR_PTR(status), 1773 libie_aq_str(hw->aq.asq_last_status)); 1774 err = -EAGAIN; 1775 } 1776 1777 if (!test_bit(__I40E_DOWN, pf->state) && is_an) { 1778 /* Give it a little more time to try to come back */ 1779 msleep(75); 1780 if (!test_bit(__I40E_DOWN, pf->state)) 1781 return i40e_nway_reset(netdev); 1782 } 1783 1784 return err; 1785} 1786 1787static u32 i40e_get_msglevel(struct net_device *netdev) 1788{ 1789 struct i40e_netdev_priv *np = netdev_priv(netdev); 1790 struct i40e_pf *pf = np->vsi->back; 1791 u32 debug_mask = pf->hw.debug_mask; 1792 1793 if (debug_mask) 1794 netdev_info(netdev, "i40e debug_mask: 0x%08X\n", debug_mask); 1795 1796 return pf->msg_enable; 1797} 1798 1799static void i40e_set_msglevel(struct net_device *netdev, u32 data) 1800{ 1801 struct i40e_netdev_priv *np = netdev_priv(netdev); 1802 struct i40e_pf *pf = np->vsi->back; 1803 1804 if (I40E_DEBUG_USER & data) 1805 pf->hw.debug_mask = data; 1806 else 1807 pf->msg_enable = data; 1808} 1809 1810static int i40e_get_regs_len(struct net_device *netdev) 1811{ 1812 int reg_count = 0; 1813 int i; 1814 1815 for (i = 0; i40e_reg_list[i].offset != 0; i++) 1816 reg_count += i40e_reg_list[i].elements; 1817 1818 return reg_count * sizeof(u32); 1819} 1820 1821static void i40e_get_regs(struct net_device *netdev, struct ethtool_regs *regs, 1822 void *p) 1823{ 1824 struct i40e_netdev_priv *np = netdev_priv(netdev); 1825 struct i40e_pf *pf = np->vsi->back; 1826 struct i40e_hw *hw = &pf->hw; 1827 u32 *reg_buf = p; 1828 unsigned int i, j, ri; 1829 u32 reg; 1830 1831 /* Tell ethtool which driver-version-specific regs output we have. 1832 * 1833 * At some point, if we have ethtool doing special formatting of 1834 * this data, it will rely on this version number to know how to 1835 * interpret things. Hence, this needs to be updated if/when the 1836 * diags register table is changed. 1837 */ 1838 regs->version = 1; 1839 1840 /* loop through the diags reg table for what to print */ 1841 ri = 0; 1842 for (i = 0; i40e_reg_list[i].offset != 0; i++) { 1843 for (j = 0; j < i40e_reg_list[i].elements; j++) { 1844 reg = i40e_reg_list[i].offset 1845 + (j * i40e_reg_list[i].stride); 1846 reg_buf[ri++] = rd32(hw, reg); 1847 } 1848 } 1849 1850} 1851 1852static int i40e_get_eeprom(struct net_device *netdev, 1853 struct ethtool_eeprom *eeprom, u8 *bytes) 1854{ 1855 struct i40e_netdev_priv *np = netdev_priv(netdev); 1856 struct i40e_hw *hw = &np->vsi->back->hw; 1857 struct i40e_pf *pf = np->vsi->back; 1858 int ret_val = 0, len, offset; 1859 u8 *eeprom_buff; 1860 u16 i, sectors; 1861 bool last; 1862 u32 magic; 1863 1864#define I40E_NVM_SECTOR_SIZE 4096 1865 if (eeprom->len == 0) 1866 return -EINVAL; 1867 1868 /* check for NVMUpdate access method */ 1869 magic = hw->vendor_id | (hw->device_id << 16); 1870 if (eeprom->magic && eeprom->magic != magic) { 1871 struct i40e_nvm_access *cmd = (struct i40e_nvm_access *)eeprom; 1872 int errno = 0; 1873 1874 /* make sure it is the right magic for NVMUpdate */ 1875 if ((eeprom->magic >> 16) != hw->device_id) 1876 errno = -EINVAL; 1877 else if (test_bit(__I40E_RESET_RECOVERY_PENDING, pf->state) || 1878 test_bit(__I40E_RESET_INTR_RECEIVED, pf->state)) 1879 errno = -EBUSY; 1880 else 1881 ret_val = i40e_nvmupd_command(hw, cmd, bytes, &errno); 1882 1883 if ((errno || ret_val) && (hw->debug_mask & I40E_DEBUG_NVM)) 1884 dev_info(&pf->pdev->dev, 1885 "NVMUpdate read failed err=%d status=0x%x errno=%d module=%d offset=0x%x size=%d\n", 1886 ret_val, hw->aq.asq_last_status, errno, 1887 (u8)(cmd->config & I40E_NVM_MOD_PNT_MASK), 1888 cmd->offset, cmd->data_size); 1889 1890 return errno; 1891 } 1892 1893 /* normal ethtool get_eeprom support */ 1894 eeprom->magic = hw->vendor_id | (hw->device_id << 16); 1895 1896 eeprom_buff = kzalloc(eeprom->len, GFP_KERNEL); 1897 if (!eeprom_buff) 1898 return -ENOMEM; 1899 1900 ret_val = i40e_acquire_nvm(hw, I40E_RESOURCE_READ); 1901 if (ret_val) { 1902 dev_info(&pf->pdev->dev, 1903 "Failed Acquiring NVM resource for read err=%d status=0x%x\n", 1904 ret_val, hw->aq.asq_last_status); 1905 goto free_buff; 1906 } 1907 1908 sectors = eeprom->len / I40E_NVM_SECTOR_SIZE; 1909 sectors += (eeprom->len % I40E_NVM_SECTOR_SIZE) ? 1 : 0; 1910 len = I40E_NVM_SECTOR_SIZE; 1911 last = false; 1912 for (i = 0; i < sectors; i++) { 1913 if (i == (sectors - 1)) { 1914 len = eeprom->len - (I40E_NVM_SECTOR_SIZE * i); 1915 last = true; 1916 } 1917 offset = eeprom->offset + (I40E_NVM_SECTOR_SIZE * i); 1918 ret_val = i40e_aq_read_nvm(hw, 0x0, offset, len, 1919 (u8 *)eeprom_buff + (I40E_NVM_SECTOR_SIZE * i), 1920 last, NULL); 1921 if (ret_val && hw->aq.asq_last_status == LIBIE_AQ_RC_EPERM) { 1922 dev_info(&pf->pdev->dev, 1923 "read NVM failed, invalid offset 0x%x\n", 1924 offset); 1925 break; 1926 } else if (ret_val && 1927 hw->aq.asq_last_status == LIBIE_AQ_RC_EACCES) { 1928 dev_info(&pf->pdev->dev, 1929 "read NVM failed, access, offset 0x%x\n", 1930 offset); 1931 break; 1932 } else if (ret_val) { 1933 dev_info(&pf->pdev->dev, 1934 "read NVM failed offset %d err=%d status=0x%x\n", 1935 offset, ret_val, hw->aq.asq_last_status); 1936 break; 1937 } 1938 } 1939 1940 i40e_release_nvm(hw); 1941 memcpy(bytes, (u8 *)eeprom_buff, eeprom->len); 1942free_buff: 1943 kfree(eeprom_buff); 1944 return ret_val; 1945} 1946 1947static int i40e_get_eeprom_len(struct net_device *netdev) 1948{ 1949 struct i40e_netdev_priv *np = netdev_priv(netdev); 1950 struct i40e_hw *hw = &np->vsi->back->hw; 1951 u32 val; 1952 1953#define X722_EEPROM_SCOPE_LIMIT 0x5B9FFF 1954 if (hw->mac.type == I40E_MAC_X722) { 1955 val = X722_EEPROM_SCOPE_LIMIT + 1; 1956 return val; 1957 } 1958 val = FIELD_GET(I40E_GLPCI_LBARCTRL_FL_SIZE_MASK, 1959 rd32(hw, I40E_GLPCI_LBARCTRL)); 1960 /* register returns value in power of 2, 64Kbyte chunks. */ 1961 val = (64 * 1024) * BIT(val); 1962 return val; 1963} 1964 1965static int i40e_set_eeprom(struct net_device *netdev, 1966 struct ethtool_eeprom *eeprom, u8 *bytes) 1967{ 1968 struct i40e_netdev_priv *np = netdev_priv(netdev); 1969 struct i40e_hw *hw = &np->vsi->back->hw; 1970 struct i40e_pf *pf = np->vsi->back; 1971 struct i40e_nvm_access *cmd = (struct i40e_nvm_access *)eeprom; 1972 int ret_val = 0; 1973 int errno = 0; 1974 u32 magic; 1975 1976 /* normal ethtool set_eeprom is not supported */ 1977 magic = hw->vendor_id | (hw->device_id << 16); 1978 if (eeprom->magic == magic) 1979 errno = -EOPNOTSUPP; 1980 /* check for NVMUpdate access method */ 1981 else if (!eeprom->magic || (eeprom->magic >> 16) != hw->device_id) 1982 errno = -EINVAL; 1983 else if (test_bit(__I40E_RESET_RECOVERY_PENDING, pf->state) || 1984 test_bit(__I40E_RESET_INTR_RECEIVED, pf->state)) 1985 errno = -EBUSY; 1986 else 1987 ret_val = i40e_nvmupd_command(hw, cmd, bytes, &errno); 1988 1989 if ((errno || ret_val) && (hw->debug_mask & I40E_DEBUG_NVM)) 1990 dev_info(&pf->pdev->dev, 1991 "NVMUpdate write failed err=%d status=0x%x errno=%d module=%d offset=0x%x size=%d\n", 1992 ret_val, hw->aq.asq_last_status, errno, 1993 (u8)(cmd->config & I40E_NVM_MOD_PNT_MASK), 1994 cmd->offset, cmd->data_size); 1995 1996 return errno; 1997} 1998 1999static void i40e_get_drvinfo(struct net_device *netdev, 2000 struct ethtool_drvinfo *drvinfo) 2001{ 2002 struct i40e_netdev_priv *np = netdev_priv(netdev); 2003 struct i40e_vsi *vsi = np->vsi; 2004 struct i40e_pf *pf = vsi->back; 2005 2006 strscpy(drvinfo->driver, i40e_driver_name, sizeof(drvinfo->driver)); 2007 i40e_nvm_version_str(&pf->hw, drvinfo->fw_version, 2008 sizeof(drvinfo->fw_version)); 2009 strscpy(drvinfo->bus_info, pci_name(pf->pdev), 2010 sizeof(drvinfo->bus_info)); 2011 drvinfo->n_priv_flags = I40E_PRIV_FLAGS_STR_LEN; 2012 if (pf->hw.pf_id == 0) 2013 drvinfo->n_priv_flags += I40E_GL_PRIV_FLAGS_STR_LEN; 2014} 2015 2016static void i40e_get_ringparam(struct net_device *netdev, 2017 struct ethtool_ringparam *ring, 2018 struct kernel_ethtool_ringparam *kernel_ring, 2019 struct netlink_ext_ack *extack) 2020{ 2021 struct i40e_netdev_priv *np = netdev_priv(netdev); 2022 struct i40e_pf *pf = np->vsi->back; 2023 struct i40e_vsi *vsi = i40e_pf_get_main_vsi(pf); 2024 2025 ring->rx_max_pending = i40e_get_max_num_descriptors(pf); 2026 ring->tx_max_pending = i40e_get_max_num_descriptors(pf); 2027 ring->rx_mini_max_pending = 0; 2028 ring->rx_jumbo_max_pending = 0; 2029 ring->rx_pending = vsi->rx_rings[0]->count; 2030 ring->tx_pending = vsi->tx_rings[0]->count; 2031 ring->rx_mini_pending = 0; 2032 ring->rx_jumbo_pending = 0; 2033} 2034 2035static bool i40e_active_tx_ring_index(struct i40e_vsi *vsi, u16 index) 2036{ 2037 if (i40e_enabled_xdp_vsi(vsi)) { 2038 return index < vsi->num_queue_pairs || 2039 (index >= vsi->alloc_queue_pairs && 2040 index < vsi->alloc_queue_pairs + vsi->num_queue_pairs); 2041 } 2042 2043 return index < vsi->num_queue_pairs; 2044} 2045 2046static int i40e_set_ringparam(struct net_device *netdev, 2047 struct ethtool_ringparam *ring, 2048 struct kernel_ethtool_ringparam *kernel_ring, 2049 struct netlink_ext_ack *extack) 2050{ 2051 u32 new_rx_count, new_tx_count, max_num_descriptors; 2052 struct i40e_ring *tx_rings = NULL, *rx_rings = NULL; 2053 struct i40e_netdev_priv *np = netdev_priv(netdev); 2054 struct i40e_hw *hw = &np->vsi->back->hw; 2055 struct i40e_vsi *vsi = np->vsi; 2056 struct i40e_pf *pf = vsi->back; 2057 u16 tx_alloc_queue_pairs; 2058 int timeout = 50; 2059 int i, err = 0; 2060 2061 if ((ring->rx_mini_pending) || (ring->rx_jumbo_pending)) 2062 return -EINVAL; 2063 2064 max_num_descriptors = i40e_get_max_num_descriptors(pf); 2065 if (ring->tx_pending > max_num_descriptors || 2066 ring->tx_pending < I40E_MIN_NUM_DESCRIPTORS || 2067 ring->rx_pending > max_num_descriptors || 2068 ring->rx_pending < I40E_MIN_NUM_DESCRIPTORS) { 2069 netdev_info(netdev, 2070 "Descriptors requested (Tx: %d / Rx: %d) out of range [%d-%d]\n", 2071 ring->tx_pending, ring->rx_pending, 2072 I40E_MIN_NUM_DESCRIPTORS, max_num_descriptors); 2073 return -EINVAL; 2074 } 2075 2076 new_tx_count = ALIGN(ring->tx_pending, I40E_REQ_DESCRIPTOR_MULTIPLE); 2077 new_rx_count = ALIGN(ring->rx_pending, I40E_REQ_DESCRIPTOR_MULTIPLE); 2078 2079 /* if nothing to do return success */ 2080 if ((new_tx_count == vsi->tx_rings[0]->count) && 2081 (new_rx_count == vsi->rx_rings[0]->count)) 2082 return 0; 2083 2084 /* If there is a AF_XDP page pool attached to any of Rx rings, 2085 * disallow changing the number of descriptors -- regardless 2086 * if the netdev is running or not. 2087 */ 2088 if (i40e_xsk_any_rx_ring_enabled(vsi)) 2089 return -EBUSY; 2090 2091 while (test_and_set_bit(__I40E_CONFIG_BUSY, pf->state)) { 2092 timeout--; 2093 if (!timeout) 2094 return -EBUSY; 2095 usleep_range(1000, 2000); 2096 } 2097 2098 if (!netif_running(vsi->netdev)) { 2099 /* simple case - set for the next time the netdev is started */ 2100 for (i = 0; i < vsi->num_queue_pairs; i++) { 2101 vsi->tx_rings[i]->count = new_tx_count; 2102 vsi->rx_rings[i]->count = new_rx_count; 2103 if (i40e_enabled_xdp_vsi(vsi)) 2104 vsi->xdp_rings[i]->count = new_tx_count; 2105 } 2106 vsi->num_tx_desc = new_tx_count; 2107 vsi->num_rx_desc = new_rx_count; 2108 goto done; 2109 } 2110 2111 /* We can't just free everything and then setup again, 2112 * because the ISRs in MSI-X mode get passed pointers 2113 * to the Tx and Rx ring structs. 2114 */ 2115 2116 /* alloc updated Tx and XDP Tx resources */ 2117 tx_alloc_queue_pairs = vsi->alloc_queue_pairs * 2118 (i40e_enabled_xdp_vsi(vsi) ? 2 : 1); 2119 if (new_tx_count != vsi->tx_rings[0]->count) { 2120 netdev_info(netdev, 2121 "Changing Tx descriptor count from %d to %d.\n", 2122 vsi->tx_rings[0]->count, new_tx_count); 2123 tx_rings = kcalloc(tx_alloc_queue_pairs, 2124 sizeof(struct i40e_ring), GFP_KERNEL); 2125 if (!tx_rings) { 2126 err = -ENOMEM; 2127 goto done; 2128 } 2129 2130 for (i = 0; i < tx_alloc_queue_pairs; i++) { 2131 if (!i40e_active_tx_ring_index(vsi, i)) 2132 continue; 2133 2134 tx_rings[i] = *vsi->tx_rings[i]; 2135 tx_rings[i].count = new_tx_count; 2136 /* the desc and bi pointers will be reallocated in the 2137 * setup call 2138 */ 2139 tx_rings[i].desc = NULL; 2140 tx_rings[i].rx_bi = NULL; 2141 err = i40e_setup_tx_descriptors(&tx_rings[i]); 2142 if (err) { 2143 while (i) { 2144 i--; 2145 if (!i40e_active_tx_ring_index(vsi, i)) 2146 continue; 2147 i40e_free_tx_resources(&tx_rings[i]); 2148 } 2149 kfree(tx_rings); 2150 tx_rings = NULL; 2151 2152 goto done; 2153 } 2154 } 2155 } 2156 2157 /* alloc updated Rx resources */ 2158 if (new_rx_count != vsi->rx_rings[0]->count) { 2159 netdev_info(netdev, 2160 "Changing Rx descriptor count from %d to %d\n", 2161 vsi->rx_rings[0]->count, new_rx_count); 2162 rx_rings = kcalloc(vsi->alloc_queue_pairs, 2163 sizeof(struct i40e_ring), GFP_KERNEL); 2164 if (!rx_rings) { 2165 err = -ENOMEM; 2166 goto free_tx; 2167 } 2168 2169 for (i = 0; i < vsi->num_queue_pairs; i++) { 2170 u16 unused; 2171 2172 /* clone ring and setup updated count */ 2173 rx_rings[i] = *vsi->rx_rings[i]; 2174 rx_rings[i].count = new_rx_count; 2175 /* the desc and bi pointers will be reallocated in the 2176 * setup call 2177 */ 2178 rx_rings[i].desc = NULL; 2179 rx_rings[i].rx_bi = NULL; 2180 /* Clear cloned XDP RX-queue info before setup call */ 2181 memset(&rx_rings[i].xdp_rxq, 0, sizeof(rx_rings[i].xdp_rxq)); 2182 /* this is to allow wr32 to have something to write to 2183 * during early allocation of Rx buffers 2184 */ 2185 rx_rings[i].tail = hw->hw_addr + I40E_PRTGEN_STATUS; 2186 err = i40e_setup_rx_descriptors(&rx_rings[i]); 2187 if (err) 2188 goto rx_unwind; 2189 2190 /* now allocate the Rx buffers to make sure the OS 2191 * has enough memory, any failure here means abort 2192 */ 2193 unused = I40E_DESC_UNUSED(&rx_rings[i]); 2194 err = i40e_alloc_rx_buffers(&rx_rings[i], unused); 2195rx_unwind: 2196 if (err) { 2197 do { 2198 i40e_free_rx_resources(&rx_rings[i]); 2199 } while (i--); 2200 kfree(rx_rings); 2201 rx_rings = NULL; 2202 2203 goto free_tx; 2204 } 2205 } 2206 } 2207 2208 /* Bring interface down, copy in the new ring info, 2209 * then restore the interface 2210 */ 2211 i40e_down(vsi); 2212 2213 if (tx_rings) { 2214 for (i = 0; i < tx_alloc_queue_pairs; i++) { 2215 if (i40e_active_tx_ring_index(vsi, i)) { 2216 i40e_free_tx_resources(vsi->tx_rings[i]); 2217 *vsi->tx_rings[i] = tx_rings[i]; 2218 } 2219 } 2220 kfree(tx_rings); 2221 tx_rings = NULL; 2222 } 2223 2224 if (rx_rings) { 2225 for (i = 0; i < vsi->num_queue_pairs; i++) { 2226 i40e_free_rx_resources(vsi->rx_rings[i]); 2227 /* get the real tail offset */ 2228 rx_rings[i].tail = vsi->rx_rings[i]->tail; 2229 /* this is to fake out the allocation routine 2230 * into thinking it has to realloc everything 2231 * but the recycling logic will let us re-use 2232 * the buffers allocated above 2233 */ 2234 rx_rings[i].next_to_use = 0; 2235 rx_rings[i].next_to_clean = 0; 2236 rx_rings[i].next_to_alloc = 0; 2237 /* do a struct copy */ 2238 *vsi->rx_rings[i] = rx_rings[i]; 2239 } 2240 kfree(rx_rings); 2241 rx_rings = NULL; 2242 } 2243 2244 vsi->num_tx_desc = new_tx_count; 2245 vsi->num_rx_desc = new_rx_count; 2246 i40e_up(vsi); 2247 2248free_tx: 2249 /* error cleanup if the Rx allocations failed after getting Tx */ 2250 if (tx_rings) { 2251 for (i = 0; i < tx_alloc_queue_pairs; i++) { 2252 if (i40e_active_tx_ring_index(vsi, i)) 2253 i40e_free_tx_resources(vsi->tx_rings[i]); 2254 } 2255 kfree(tx_rings); 2256 tx_rings = NULL; 2257 } 2258 2259done: 2260 clear_bit(__I40E_CONFIG_BUSY, pf->state); 2261 2262 return err; 2263} 2264 2265/** 2266 * i40e_get_stats_count - return the stats count for a device 2267 * @netdev: the netdev to return the count for 2268 * 2269 * Returns the total number of statistics for this netdev. Note that even 2270 * though this is a function, it is required that the count for a specific 2271 * netdev must never change. Basing the count on static values such as the 2272 * maximum number of queues or the device type is ok. However, the API for 2273 * obtaining stats is *not* safe against changes based on non-static 2274 * values such as the *current* number of queues, or runtime flags. 2275 * 2276 * If a statistic is not always enabled, return it as part of the count 2277 * anyways, always return its string, and report its value as zero. 2278 **/ 2279static int i40e_get_stats_count(struct net_device *netdev) 2280{ 2281 struct i40e_netdev_priv *np = netdev_priv(netdev); 2282 struct i40e_vsi *vsi = np->vsi; 2283 struct i40e_pf *pf = vsi->back; 2284 int stats_len; 2285 2286 if (vsi->type == I40E_VSI_MAIN && pf->hw.partition_id == 1) 2287 stats_len = I40E_PF_STATS_LEN; 2288 else 2289 stats_len = I40E_VSI_STATS_LEN; 2290 2291 /* The number of stats reported for a given net_device must remain 2292 * constant throughout the life of that device. 2293 * 2294 * This is because the API for obtaining the size, strings, and stats 2295 * is spread out over three separate ethtool ioctls. There is no safe 2296 * way to lock the number of stats across these calls, so we must 2297 * assume that they will never change. 2298 * 2299 * Due to this, we report the maximum number of queues, even if not 2300 * every queue is currently configured. Since we always allocate 2301 * queues in pairs, we'll just use netdev->num_tx_queues * 2. This 2302 * works because the num_tx_queues is set at device creation and never 2303 * changes. 2304 */ 2305 stats_len += I40E_QUEUE_STATS_LEN * 2 * netdev->num_tx_queues; 2306 2307 return stats_len; 2308} 2309 2310static int i40e_get_sset_count(struct net_device *netdev, int sset) 2311{ 2312 struct i40e_netdev_priv *np = netdev_priv(netdev); 2313 struct i40e_vsi *vsi = np->vsi; 2314 struct i40e_pf *pf = vsi->back; 2315 2316 switch (sset) { 2317 case ETH_SS_TEST: 2318 return I40E_TEST_LEN; 2319 case ETH_SS_STATS: 2320 return i40e_get_stats_count(netdev); 2321 case ETH_SS_PRIV_FLAGS: 2322 return I40E_PRIV_FLAGS_STR_LEN + 2323 (pf->hw.pf_id == 0 ? I40E_GL_PRIV_FLAGS_STR_LEN : 0); 2324 default: 2325 return -EOPNOTSUPP; 2326 } 2327} 2328 2329/** 2330 * i40e_get_veb_tc_stats - copy VEB TC statistics to formatted structure 2331 * @tc: the TC statistics in VEB structure (veb->tc_stats) 2332 * @i: the index of traffic class in (veb->tc_stats) structure to copy 2333 * 2334 * Copy VEB TC statistics from structure of arrays (veb->tc_stats) to 2335 * one dimensional structure i40e_cp_veb_tc_stats. 2336 * Produce formatted i40e_cp_veb_tc_stats structure of the VEB TC 2337 * statistics for the given TC. 2338 **/ 2339static struct i40e_cp_veb_tc_stats 2340i40e_get_veb_tc_stats(struct i40e_veb_tc_stats *tc, unsigned int i) 2341{ 2342 struct i40e_cp_veb_tc_stats veb_tc = { 2343 .tc_rx_packets = tc->tc_rx_packets[i], 2344 .tc_rx_bytes = tc->tc_rx_bytes[i], 2345 .tc_tx_packets = tc->tc_tx_packets[i], 2346 .tc_tx_bytes = tc->tc_tx_bytes[i], 2347 }; 2348 2349 return veb_tc; 2350} 2351 2352/** 2353 * i40e_get_pfc_stats - copy HW PFC statistics to formatted structure 2354 * @pf: the PF device structure 2355 * @i: the priority value to copy 2356 * 2357 * The PFC stats are found as arrays in pf->stats, which is not easy to pass 2358 * into i40e_add_ethtool_stats. Produce a formatted i40e_pfc_stats structure 2359 * of the PFC stats for the given priority. 2360 **/ 2361static inline struct i40e_pfc_stats 2362i40e_get_pfc_stats(struct i40e_pf *pf, unsigned int i) 2363{ 2364#define I40E_GET_PFC_STAT(stat, priority) \ 2365 .stat = pf->stats.stat[priority] 2366 2367 struct i40e_pfc_stats pfc = { 2368 I40E_GET_PFC_STAT(priority_xon_rx, i), 2369 I40E_GET_PFC_STAT(priority_xoff_rx, i), 2370 I40E_GET_PFC_STAT(priority_xon_tx, i), 2371 I40E_GET_PFC_STAT(priority_xoff_tx, i), 2372 I40E_GET_PFC_STAT(priority_xon_2_xoff, i), 2373 }; 2374 return pfc; 2375} 2376 2377/** 2378 * i40e_get_ethtool_stats - copy stat values into supplied buffer 2379 * @netdev: the netdev to collect stats for 2380 * @stats: ethtool stats command structure 2381 * @data: ethtool supplied buffer 2382 * 2383 * Copy the stats values for this netdev into the buffer. Expects data to be 2384 * pre-allocated to the size returned by i40e_get_stats_count.. Note that all 2385 * statistics must be copied in a static order, and the count must not change 2386 * for a given netdev. See i40e_get_stats_count for more details. 2387 * 2388 * If a statistic is not currently valid (such as a disabled queue), this 2389 * function reports its value as zero. 2390 **/ 2391static void i40e_get_ethtool_stats(struct net_device *netdev, 2392 struct ethtool_stats *stats, u64 *data) 2393{ 2394 struct i40e_netdev_priv *np = netdev_priv(netdev); 2395 struct i40e_vsi *vsi = np->vsi; 2396 struct i40e_pf *pf = vsi->back; 2397 struct i40e_veb *veb = NULL; 2398 unsigned int i; 2399 bool veb_stats; 2400 u64 *p = data; 2401 2402 i40e_update_stats(vsi); 2403 2404 i40e_add_ethtool_stats(&data, i40e_get_vsi_stats_struct(vsi), 2405 i40e_gstrings_net_stats); 2406 2407 i40e_add_ethtool_stats(&data, vsi, i40e_gstrings_misc_stats); 2408 2409 rcu_read_lock(); 2410 for (i = 0; i < netdev->num_tx_queues; i++) { 2411 i40e_add_queue_stats(&data, READ_ONCE(vsi->tx_rings[i])); 2412 i40e_add_queue_stats(&data, READ_ONCE(vsi->rx_rings[i])); 2413 } 2414 rcu_read_unlock(); 2415 2416 if (vsi->type != I40E_VSI_MAIN || pf->hw.partition_id != 1) 2417 goto check_data_pointer; 2418 2419 veb = i40e_pf_get_main_veb(pf); 2420 veb_stats = veb && test_bit(I40E_FLAG_VEB_STATS_ENA, pf->flags); 2421 2422 if (veb_stats) 2423 i40e_update_veb_stats(veb); 2424 2425 /* If veb stats aren't enabled, pass NULL instead of the veb so that 2426 * we initialize stats to zero and update the data pointer 2427 * intelligently 2428 */ 2429 i40e_add_ethtool_stats(&data, veb_stats ? veb : NULL, 2430 i40e_gstrings_veb_stats); 2431 2432 for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++) 2433 if (veb_stats) { 2434 struct i40e_cp_veb_tc_stats veb_tc = 2435 i40e_get_veb_tc_stats(&veb->tc_stats, i); 2436 2437 i40e_add_ethtool_stats(&data, &veb_tc, 2438 i40e_gstrings_veb_tc_stats); 2439 } else { 2440 i40e_add_ethtool_stats(&data, NULL, 2441 i40e_gstrings_veb_tc_stats); 2442 } 2443 2444 i40e_add_ethtool_stats(&data, pf, i40e_gstrings_stats); 2445 2446 for (i = 0; i < I40E_MAX_USER_PRIORITY; i++) { 2447 struct i40e_pfc_stats pfc = i40e_get_pfc_stats(pf, i); 2448 2449 i40e_add_ethtool_stats(&data, &pfc, i40e_gstrings_pfc_stats); 2450 } 2451 2452check_data_pointer: 2453 WARN_ONCE(data - p != i40e_get_stats_count(netdev), 2454 "ethtool stats count mismatch!"); 2455} 2456 2457/** 2458 * i40e_get_stat_strings - copy stat strings into supplied buffer 2459 * @netdev: the netdev to collect strings for 2460 * @data: supplied buffer to copy strings into 2461 * 2462 * Copy the strings related to stats for this netdev. Expects data to be 2463 * pre-allocated with the size reported by i40e_get_stats_count. Note that the 2464 * strings must be copied in a static order and the total count must not 2465 * change for a given netdev. See i40e_get_stats_count for more details. 2466 **/ 2467static void i40e_get_stat_strings(struct net_device *netdev, u8 *data) 2468{ 2469 struct i40e_netdev_priv *np = netdev_priv(netdev); 2470 struct i40e_vsi *vsi = np->vsi; 2471 struct i40e_pf *pf = vsi->back; 2472 unsigned int i; 2473 u8 *p = data; 2474 2475 i40e_add_stat_strings(&data, i40e_gstrings_net_stats); 2476 2477 i40e_add_stat_strings(&data, i40e_gstrings_misc_stats); 2478 2479 for (i = 0; i < netdev->num_tx_queues; i++) { 2480 i40e_add_stat_strings(&data, i40e_gstrings_queue_stats, 2481 "tx", i); 2482 i40e_add_stat_strings(&data, i40e_gstrings_queue_stats, 2483 "rx", i); 2484 } 2485 2486 if (vsi->type != I40E_VSI_MAIN || pf->hw.partition_id != 1) 2487 goto check_data_pointer; 2488 2489 i40e_add_stat_strings(&data, i40e_gstrings_veb_stats); 2490 2491 for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++) 2492 i40e_add_stat_strings(&data, i40e_gstrings_veb_tc_stats, i); 2493 2494 i40e_add_stat_strings(&data, i40e_gstrings_stats); 2495 2496 for (i = 0; i < I40E_MAX_USER_PRIORITY; i++) 2497 i40e_add_stat_strings(&data, i40e_gstrings_pfc_stats, i); 2498 2499check_data_pointer: 2500 WARN_ONCE(data - p != i40e_get_stats_count(netdev) * ETH_GSTRING_LEN, 2501 "stat strings count mismatch!"); 2502} 2503 2504static void i40e_get_priv_flag_strings(struct net_device *netdev, u8 *data) 2505{ 2506 struct i40e_netdev_priv *np = netdev_priv(netdev); 2507 struct i40e_vsi *vsi = np->vsi; 2508 struct i40e_pf *pf = vsi->back; 2509 unsigned int i; 2510 u8 *p = data; 2511 2512 for (i = 0; i < I40E_PRIV_FLAGS_STR_LEN; i++) 2513 ethtool_puts(&p, i40e_gstrings_priv_flags[i].flag_string); 2514 if (pf->hw.pf_id != 0) 2515 return; 2516 for (i = 0; i < I40E_GL_PRIV_FLAGS_STR_LEN; i++) 2517 ethtool_puts(&p, i40e_gl_gstrings_priv_flags[i].flag_string); 2518} 2519 2520static void i40e_get_strings(struct net_device *netdev, u32 stringset, 2521 u8 *data) 2522{ 2523 switch (stringset) { 2524 case ETH_SS_TEST: 2525 memcpy(data, i40e_gstrings_test, 2526 I40E_TEST_LEN * ETH_GSTRING_LEN); 2527 break; 2528 case ETH_SS_STATS: 2529 i40e_get_stat_strings(netdev, data); 2530 break; 2531 case ETH_SS_PRIV_FLAGS: 2532 i40e_get_priv_flag_strings(netdev, data); 2533 break; 2534 default: 2535 break; 2536 } 2537} 2538 2539static int i40e_get_ts_info(struct net_device *dev, 2540 struct kernel_ethtool_ts_info *info) 2541{ 2542 struct i40e_pf *pf = i40e_netdev_to_pf(dev); 2543 2544 /* only report HW timestamping if PTP is enabled */ 2545 if (!test_bit(I40E_FLAG_PTP_ENA, pf->flags)) 2546 return ethtool_op_get_ts_info(dev, info); 2547 2548 info->so_timestamping = SOF_TIMESTAMPING_TX_SOFTWARE | 2549 SOF_TIMESTAMPING_TX_HARDWARE | 2550 SOF_TIMESTAMPING_RX_HARDWARE | 2551 SOF_TIMESTAMPING_RAW_HARDWARE; 2552 2553 if (pf->ptp_clock) 2554 info->phc_index = ptp_clock_index(pf->ptp_clock); 2555 2556 info->tx_types = BIT(HWTSTAMP_TX_OFF) | BIT(HWTSTAMP_TX_ON); 2557 2558 info->rx_filters = BIT(HWTSTAMP_FILTER_NONE) | 2559 BIT(HWTSTAMP_FILTER_PTP_V2_L2_EVENT) | 2560 BIT(HWTSTAMP_FILTER_PTP_V2_L2_SYNC) | 2561 BIT(HWTSTAMP_FILTER_PTP_V2_L2_DELAY_REQ); 2562 2563 if (test_bit(I40E_HW_CAP_PTP_L4, pf->hw.caps)) 2564 info->rx_filters |= BIT(HWTSTAMP_FILTER_PTP_V1_L4_SYNC) | 2565 BIT(HWTSTAMP_FILTER_PTP_V1_L4_DELAY_REQ) | 2566 BIT(HWTSTAMP_FILTER_PTP_V2_EVENT) | 2567 BIT(HWTSTAMP_FILTER_PTP_V2_L4_EVENT) | 2568 BIT(HWTSTAMP_FILTER_PTP_V2_SYNC) | 2569 BIT(HWTSTAMP_FILTER_PTP_V2_L4_SYNC) | 2570 BIT(HWTSTAMP_FILTER_PTP_V2_DELAY_REQ) | 2571 BIT(HWTSTAMP_FILTER_PTP_V2_L4_DELAY_REQ); 2572 2573 return 0; 2574} 2575 2576static u64 i40e_link_test(struct net_device *netdev, u64 *data) 2577{ 2578 struct i40e_netdev_priv *np = netdev_priv(netdev); 2579 struct i40e_pf *pf = np->vsi->back; 2580 bool link_up = false; 2581 int status; 2582 2583 netif_info(pf, hw, netdev, "link test\n"); 2584 status = i40e_get_link_status(&pf->hw, &link_up); 2585 if (status) { 2586 netif_err(pf, drv, netdev, "link query timed out, please retry test\n"); 2587 *data = 1; 2588 return *data; 2589 } 2590 2591 if (link_up) 2592 *data = 0; 2593 else 2594 *data = 1; 2595 2596 return *data; 2597} 2598 2599static u64 i40e_reg_test(struct net_device *netdev, u64 *data) 2600{ 2601 struct i40e_netdev_priv *np = netdev_priv(netdev); 2602 struct i40e_pf *pf = np->vsi->back; 2603 2604 netif_info(pf, hw, netdev, "register test\n"); 2605 *data = i40e_diag_reg_test(&pf->hw); 2606 2607 return *data; 2608} 2609 2610static u64 i40e_eeprom_test(struct net_device *netdev, u64 *data) 2611{ 2612 struct i40e_netdev_priv *np = netdev_priv(netdev); 2613 struct i40e_pf *pf = np->vsi->back; 2614 2615 netif_info(pf, hw, netdev, "eeprom test\n"); 2616 *data = i40e_diag_eeprom_test(&pf->hw); 2617 2618 /* forcebly clear the NVM Update state machine */ 2619 pf->hw.nvmupd_state = I40E_NVMUPD_STATE_INIT; 2620 2621 return *data; 2622} 2623 2624static u64 i40e_intr_test(struct net_device *netdev, u64 *data) 2625{ 2626 struct i40e_netdev_priv *np = netdev_priv(netdev); 2627 struct i40e_pf *pf = np->vsi->back; 2628 u16 swc_old = pf->sw_int_count; 2629 2630 netif_info(pf, hw, netdev, "interrupt test\n"); 2631 wr32(&pf->hw, I40E_PFINT_DYN_CTL0, 2632 (I40E_PFINT_DYN_CTL0_INTENA_MASK | 2633 I40E_PFINT_DYN_CTL0_SWINT_TRIG_MASK | 2634 I40E_PFINT_DYN_CTL0_ITR_INDX_MASK | 2635 I40E_PFINT_DYN_CTL0_SW_ITR_INDX_ENA_MASK | 2636 I40E_PFINT_DYN_CTL0_SW_ITR_INDX_MASK)); 2637 usleep_range(1000, 2000); 2638 *data = (swc_old == pf->sw_int_count); 2639 2640 return *data; 2641} 2642 2643static inline bool i40e_active_vfs(struct i40e_pf *pf) 2644{ 2645 struct i40e_vf *vfs = pf->vf; 2646 int i; 2647 2648 for (i = 0; i < pf->num_alloc_vfs; i++) 2649 if (test_bit(I40E_VF_STATE_ACTIVE, &vfs[i].vf_states)) 2650 return true; 2651 return false; 2652} 2653 2654static inline bool i40e_active_vmdqs(struct i40e_pf *pf) 2655{ 2656 return !!i40e_find_vsi_by_type(pf, I40E_VSI_VMDQ2); 2657} 2658 2659static void i40e_diag_test(struct net_device *netdev, 2660 struct ethtool_test *eth_test, u64 *data) 2661{ 2662 struct i40e_netdev_priv *np = netdev_priv(netdev); 2663 bool if_running = netif_running(netdev); 2664 struct i40e_pf *pf = np->vsi->back; 2665 2666 if (eth_test->flags == ETH_TEST_FL_OFFLINE) { 2667 /* Offline tests */ 2668 netif_info(pf, drv, netdev, "offline testing starting\n"); 2669 2670 set_bit(__I40E_TESTING, pf->state); 2671 2672 if (test_bit(__I40E_RESET_RECOVERY_PENDING, pf->state) || 2673 test_bit(__I40E_RESET_INTR_RECEIVED, pf->state)) { 2674 dev_warn(&pf->pdev->dev, 2675 "Cannot start offline testing when PF is in reset state.\n"); 2676 goto skip_ol_tests; 2677 } 2678 2679 if (i40e_active_vfs(pf) || i40e_active_vmdqs(pf)) { 2680 dev_warn(&pf->pdev->dev, 2681 "Please take active VFs and Netqueues offline and restart the adapter before running NIC diagnostics\n"); 2682 goto skip_ol_tests; 2683 } 2684 2685 /* If the device is online then take it offline */ 2686 if (if_running) 2687 /* indicate we're in test mode */ 2688 i40e_close(netdev); 2689 else 2690 /* This reset does not affect link - if it is 2691 * changed to a type of reset that does affect 2692 * link then the following link test would have 2693 * to be moved to before the reset 2694 */ 2695 i40e_do_reset(pf, BIT(__I40E_PF_RESET_REQUESTED), true); 2696 2697 if (i40e_link_test(netdev, &data[I40E_ETH_TEST_LINK])) 2698 eth_test->flags |= ETH_TEST_FL_FAILED; 2699 2700 if (i40e_eeprom_test(netdev, &data[I40E_ETH_TEST_EEPROM])) 2701 eth_test->flags |= ETH_TEST_FL_FAILED; 2702 2703 if (i40e_intr_test(netdev, &data[I40E_ETH_TEST_INTR])) 2704 eth_test->flags |= ETH_TEST_FL_FAILED; 2705 2706 /* run reg test last, a reset is required after it */ 2707 if (i40e_reg_test(netdev, &data[I40E_ETH_TEST_REG])) 2708 eth_test->flags |= ETH_TEST_FL_FAILED; 2709 2710 clear_bit(__I40E_TESTING, pf->state); 2711 i40e_do_reset(pf, BIT(__I40E_PF_RESET_REQUESTED), true); 2712 2713 if (if_running) 2714 i40e_open(netdev); 2715 } else { 2716 /* Online tests */ 2717 netif_info(pf, drv, netdev, "online testing starting\n"); 2718 2719 if (i40e_link_test(netdev, &data[I40E_ETH_TEST_LINK])) 2720 eth_test->flags |= ETH_TEST_FL_FAILED; 2721 2722 /* Offline only tests, not run in online; pass by default */ 2723 data[I40E_ETH_TEST_REG] = 0; 2724 data[I40E_ETH_TEST_EEPROM] = 0; 2725 data[I40E_ETH_TEST_INTR] = 0; 2726 } 2727 2728 netif_info(pf, drv, netdev, "testing finished\n"); 2729 return; 2730 2731skip_ol_tests: 2732 data[I40E_ETH_TEST_REG] = 1; 2733 data[I40E_ETH_TEST_EEPROM] = 1; 2734 data[I40E_ETH_TEST_INTR] = 1; 2735 data[I40E_ETH_TEST_LINK] = 1; 2736 eth_test->flags |= ETH_TEST_FL_FAILED; 2737 clear_bit(__I40E_TESTING, pf->state); 2738 netif_info(pf, drv, netdev, "testing failed\n"); 2739} 2740 2741static void i40e_get_link_ext_stats(struct net_device *netdev, 2742 struct ethtool_link_ext_stats *stats) 2743{ 2744 struct i40e_netdev_priv *np = netdev_priv(netdev); 2745 struct i40e_pf *pf = np->vsi->back; 2746 2747 stats->link_down_events = pf->link_down_events; 2748} 2749 2750static void i40e_get_wol(struct net_device *netdev, 2751 struct ethtool_wolinfo *wol) 2752{ 2753 struct i40e_netdev_priv *np = netdev_priv(netdev); 2754 struct i40e_pf *pf = np->vsi->back; 2755 struct i40e_hw *hw = &pf->hw; 2756 u16 wol_nvm_bits; 2757 2758 /* NVM bit on means WoL disabled for the port */ 2759 i40e_read_nvm_word(hw, I40E_SR_NVM_WAKE_ON_LAN, &wol_nvm_bits); 2760 if ((BIT(hw->port) & wol_nvm_bits) || (hw->partition_id != 1)) { 2761 wol->supported = 0; 2762 wol->wolopts = 0; 2763 } else { 2764 wol->supported = WAKE_MAGIC; 2765 wol->wolopts = (pf->wol_en ? WAKE_MAGIC : 0); 2766 } 2767} 2768 2769/** 2770 * i40e_set_wol - set the WakeOnLAN configuration 2771 * @netdev: the netdev in question 2772 * @wol: the ethtool WoL setting data 2773 **/ 2774static int i40e_set_wol(struct net_device *netdev, struct ethtool_wolinfo *wol) 2775{ 2776 struct i40e_netdev_priv *np = netdev_priv(netdev); 2777 struct i40e_pf *pf = np->vsi->back; 2778 struct i40e_vsi *vsi = np->vsi; 2779 struct i40e_hw *hw = &pf->hw; 2780 u16 wol_nvm_bits; 2781 2782 /* WoL not supported if this isn't the controlling PF on the port */ 2783 if (hw->partition_id != 1) { 2784 i40e_partition_setting_complaint(pf); 2785 return -EOPNOTSUPP; 2786 } 2787 2788 if (vsi->type != I40E_VSI_MAIN) 2789 return -EOPNOTSUPP; 2790 2791 /* NVM bit on means WoL disabled for the port */ 2792 i40e_read_nvm_word(hw, I40E_SR_NVM_WAKE_ON_LAN, &wol_nvm_bits); 2793 if (BIT(hw->port) & wol_nvm_bits) 2794 return -EOPNOTSUPP; 2795 2796 /* only magic packet is supported */ 2797 if (wol->wolopts & ~WAKE_MAGIC) 2798 return -EOPNOTSUPP; 2799 2800 /* is this a new value? */ 2801 if (pf->wol_en != !!wol->wolopts) { 2802 pf->wol_en = !!wol->wolopts; 2803 device_set_wakeup_enable(&pf->pdev->dev, pf->wol_en); 2804 } 2805 2806 return 0; 2807} 2808 2809static int i40e_set_phys_id(struct net_device *netdev, 2810 enum ethtool_phys_id_state state) 2811{ 2812 struct i40e_netdev_priv *np = netdev_priv(netdev); 2813 struct i40e_pf *pf = np->vsi->back; 2814 struct i40e_hw *hw = &pf->hw; 2815 int blink_freq = 2; 2816 u16 temp_status; 2817 int ret = 0; 2818 2819 switch (state) { 2820 case ETHTOOL_ID_ACTIVE: 2821 if (!test_bit(I40E_HW_CAP_PHY_CONTROLS_LEDS, pf->hw.caps)) { 2822 pf->led_status = i40e_led_get(hw); 2823 } else { 2824 if (!test_bit(I40E_HW_CAP_AQ_PHY_ACCESS, hw->caps)) 2825 i40e_aq_set_phy_debug(hw, I40E_PHY_DEBUG_ALL, 2826 NULL); 2827 ret = i40e_led_get_phy(hw, &temp_status, 2828 &pf->phy_led_val); 2829 pf->led_status = temp_status; 2830 } 2831 return blink_freq; 2832 case ETHTOOL_ID_ON: 2833 if (!test_bit(I40E_HW_CAP_PHY_CONTROLS_LEDS, pf->hw.caps)) 2834 i40e_led_set(hw, 0xf, false); 2835 else 2836 ret = i40e_led_set_phy(hw, true, pf->led_status, 0); 2837 break; 2838 case ETHTOOL_ID_OFF: 2839 if (!test_bit(I40E_HW_CAP_PHY_CONTROLS_LEDS, pf->hw.caps)) 2840 i40e_led_set(hw, 0x0, false); 2841 else 2842 ret = i40e_led_set_phy(hw, false, pf->led_status, 0); 2843 break; 2844 case ETHTOOL_ID_INACTIVE: 2845 if (!test_bit(I40E_HW_CAP_PHY_CONTROLS_LEDS, pf->hw.caps)) { 2846 i40e_led_set(hw, pf->led_status, false); 2847 } else { 2848 ret = i40e_led_set_phy(hw, false, pf->led_status, 2849 (pf->phy_led_val | 2850 I40E_PHY_LED_MODE_ORIG)); 2851 if (!test_bit(I40E_HW_CAP_AQ_PHY_ACCESS, hw->caps)) 2852 i40e_aq_set_phy_debug(hw, 0, NULL); 2853 } 2854 break; 2855 default: 2856 break; 2857 } 2858 if (ret) 2859 return -ENOENT; 2860 else 2861 return 0; 2862} 2863 2864/* NOTE: i40e hardware uses a conversion factor of 2 for Interrupt 2865 * Throttle Rate (ITR) ie. ITR(1) = 2us ITR(10) = 20 us, and also 2866 * 125us (8000 interrupts per second) == ITR(62) 2867 */ 2868 2869/** 2870 * __i40e_get_coalesce - get per-queue coalesce settings 2871 * @netdev: the netdev to check 2872 * @ec: ethtool coalesce data structure 2873 * @queue: which queue to pick 2874 * 2875 * Gets the per-queue settings for coalescence. Specifically Rx and Tx usecs 2876 * are per queue. If queue is <0 then we default to queue 0 as the 2877 * representative value. 2878 **/ 2879static int __i40e_get_coalesce(struct net_device *netdev, 2880 struct ethtool_coalesce *ec, 2881 int queue) 2882{ 2883 struct i40e_netdev_priv *np = netdev_priv(netdev); 2884 struct i40e_ring *rx_ring, *tx_ring; 2885 struct i40e_vsi *vsi = np->vsi; 2886 2887 ec->tx_max_coalesced_frames_irq = vsi->work_limit; 2888 2889 /* rx and tx usecs has per queue value. If user doesn't specify the 2890 * queue, return queue 0's value to represent. 2891 */ 2892 if (queue < 0) 2893 queue = 0; 2894 else if (queue >= vsi->num_queue_pairs) 2895 return -EINVAL; 2896 2897 rx_ring = vsi->rx_rings[queue]; 2898 tx_ring = vsi->tx_rings[queue]; 2899 2900 if (ITR_IS_DYNAMIC(rx_ring->itr_setting)) 2901 ec->use_adaptive_rx_coalesce = 1; 2902 2903 if (ITR_IS_DYNAMIC(tx_ring->itr_setting)) 2904 ec->use_adaptive_tx_coalesce = 1; 2905 2906 ec->rx_coalesce_usecs = rx_ring->itr_setting & ~I40E_ITR_DYNAMIC; 2907 ec->tx_coalesce_usecs = tx_ring->itr_setting & ~I40E_ITR_DYNAMIC; 2908 2909 /* we use the _usecs_high to store/set the interrupt rate limit 2910 * that the hardware supports, that almost but not quite 2911 * fits the original intent of the ethtool variable, 2912 * the rx_coalesce_usecs_high limits total interrupts 2913 * per second from both tx/rx sources. 2914 */ 2915 ec->rx_coalesce_usecs_high = vsi->int_rate_limit; 2916 ec->tx_coalesce_usecs_high = vsi->int_rate_limit; 2917 2918 return 0; 2919} 2920 2921/** 2922 * i40e_get_coalesce - get a netdev's coalesce settings 2923 * @netdev: the netdev to check 2924 * @ec: ethtool coalesce data structure 2925 * @kernel_coal: ethtool CQE mode setting structure 2926 * @extack: extack for reporting error messages 2927 * 2928 * Gets the coalesce settings for a particular netdev. Note that if user has 2929 * modified per-queue settings, this only guarantees to represent queue 0. See 2930 * __i40e_get_coalesce for more details. 2931 **/ 2932static int i40e_get_coalesce(struct net_device *netdev, 2933 struct ethtool_coalesce *ec, 2934 struct kernel_ethtool_coalesce *kernel_coal, 2935 struct netlink_ext_ack *extack) 2936{ 2937 return __i40e_get_coalesce(netdev, ec, -1); 2938} 2939 2940/** 2941 * i40e_get_per_queue_coalesce - gets coalesce settings for particular queue 2942 * @netdev: netdev structure 2943 * @ec: ethtool's coalesce settings 2944 * @queue: the particular queue to read 2945 * 2946 * Will read a specific queue's coalesce settings 2947 **/ 2948static int i40e_get_per_queue_coalesce(struct net_device *netdev, u32 queue, 2949 struct ethtool_coalesce *ec) 2950{ 2951 return __i40e_get_coalesce(netdev, ec, queue); 2952} 2953 2954/** 2955 * i40e_set_itr_per_queue - set ITR values for specific queue 2956 * @vsi: the VSI to set values for 2957 * @ec: coalesce settings from ethtool 2958 * @queue: the queue to modify 2959 * 2960 * Change the ITR settings for a specific queue. 2961 **/ 2962static void i40e_set_itr_per_queue(struct i40e_vsi *vsi, 2963 struct ethtool_coalesce *ec, 2964 int queue) 2965{ 2966 struct i40e_ring *rx_ring = vsi->rx_rings[queue]; 2967 struct i40e_ring *tx_ring = vsi->tx_rings[queue]; 2968 struct i40e_pf *pf = vsi->back; 2969 struct i40e_hw *hw = &pf->hw; 2970 struct i40e_q_vector *q_vector; 2971 u16 intrl; 2972 2973 intrl = i40e_intrl_usec_to_reg(vsi->int_rate_limit); 2974 2975 rx_ring->itr_setting = ITR_REG_ALIGN(ec->rx_coalesce_usecs); 2976 tx_ring->itr_setting = ITR_REG_ALIGN(ec->tx_coalesce_usecs); 2977 2978 if (ec->use_adaptive_rx_coalesce) 2979 rx_ring->itr_setting |= I40E_ITR_DYNAMIC; 2980 else 2981 rx_ring->itr_setting &= ~I40E_ITR_DYNAMIC; 2982 2983 if (ec->use_adaptive_tx_coalesce) 2984 tx_ring->itr_setting |= I40E_ITR_DYNAMIC; 2985 else 2986 tx_ring->itr_setting &= ~I40E_ITR_DYNAMIC; 2987 2988 q_vector = rx_ring->q_vector; 2989 q_vector->rx.target_itr = ITR_TO_REG(rx_ring->itr_setting); 2990 2991 q_vector = tx_ring->q_vector; 2992 q_vector->tx.target_itr = ITR_TO_REG(tx_ring->itr_setting); 2993 2994 /* The interrupt handler itself will take care of programming 2995 * the Tx and Rx ITR values based on the values we have entered 2996 * into the q_vector, no need to write the values now. 2997 */ 2998 2999 wr32(hw, I40E_PFINT_RATEN(q_vector->reg_idx), intrl); 3000 i40e_flush(hw); 3001} 3002 3003/** 3004 * __i40e_set_coalesce - set coalesce settings for particular queue 3005 * @netdev: the netdev to change 3006 * @ec: ethtool coalesce settings 3007 * @queue: the queue to change 3008 * 3009 * Sets the coalesce settings for a particular queue. 3010 **/ 3011static int __i40e_set_coalesce(struct net_device *netdev, 3012 struct ethtool_coalesce *ec, 3013 int queue) 3014{ 3015 struct i40e_netdev_priv *np = netdev_priv(netdev); 3016 u16 intrl_reg, cur_rx_itr, cur_tx_itr; 3017 struct i40e_vsi *vsi = np->vsi; 3018 struct i40e_pf *pf = vsi->back; 3019 int i; 3020 3021 if (ec->tx_max_coalesced_frames_irq) 3022 vsi->work_limit = ec->tx_max_coalesced_frames_irq; 3023 3024 if (queue < 0) { 3025 cur_rx_itr = vsi->rx_rings[0]->itr_setting; 3026 cur_tx_itr = vsi->tx_rings[0]->itr_setting; 3027 } else if (queue < vsi->num_queue_pairs) { 3028 cur_rx_itr = vsi->rx_rings[queue]->itr_setting; 3029 cur_tx_itr = vsi->tx_rings[queue]->itr_setting; 3030 } else { 3031 netif_info(pf, drv, netdev, "Invalid queue value, queue range is 0 - %d\n", 3032 vsi->num_queue_pairs - 1); 3033 return -EINVAL; 3034 } 3035 3036 cur_tx_itr &= ~I40E_ITR_DYNAMIC; 3037 cur_rx_itr &= ~I40E_ITR_DYNAMIC; 3038 3039 /* tx_coalesce_usecs_high is ignored, use rx-usecs-high instead */ 3040 if (ec->tx_coalesce_usecs_high != vsi->int_rate_limit) { 3041 netif_info(pf, drv, netdev, "tx-usecs-high is not used, please program rx-usecs-high\n"); 3042 return -EINVAL; 3043 } 3044 3045 if (ec->rx_coalesce_usecs_high > INTRL_REG_TO_USEC(I40E_MAX_INTRL)) { 3046 netif_info(pf, drv, netdev, "Invalid value, rx-usecs-high range is 0-%lu\n", 3047 INTRL_REG_TO_USEC(I40E_MAX_INTRL)); 3048 return -EINVAL; 3049 } 3050 3051 if (ec->rx_coalesce_usecs != cur_rx_itr && 3052 ec->use_adaptive_rx_coalesce) { 3053 netif_info(pf, drv, netdev, "RX interrupt moderation cannot be changed if adaptive-rx is enabled.\n"); 3054 return -EINVAL; 3055 } 3056 3057 if (ec->rx_coalesce_usecs > I40E_MAX_ITR) { 3058 netif_info(pf, drv, netdev, "Invalid value, rx-usecs range is 0-8160\n"); 3059 return -EINVAL; 3060 } 3061 3062 if (ec->tx_coalesce_usecs != cur_tx_itr && 3063 ec->use_adaptive_tx_coalesce) { 3064 netif_info(pf, drv, netdev, "TX interrupt moderation cannot be changed if adaptive-tx is enabled.\n"); 3065 return -EINVAL; 3066 } 3067 3068 if (ec->tx_coalesce_usecs > I40E_MAX_ITR) { 3069 netif_info(pf, drv, netdev, "Invalid value, tx-usecs range is 0-8160\n"); 3070 return -EINVAL; 3071 } 3072 3073 if (ec->use_adaptive_rx_coalesce && !cur_rx_itr) 3074 ec->rx_coalesce_usecs = I40E_MIN_ITR; 3075 3076 if (ec->use_adaptive_tx_coalesce && !cur_tx_itr) 3077 ec->tx_coalesce_usecs = I40E_MIN_ITR; 3078 3079 intrl_reg = i40e_intrl_usec_to_reg(ec->rx_coalesce_usecs_high); 3080 vsi->int_rate_limit = INTRL_REG_TO_USEC(intrl_reg); 3081 if (vsi->int_rate_limit != ec->rx_coalesce_usecs_high) { 3082 netif_info(pf, drv, netdev, "Interrupt rate limit rounded down to %d\n", 3083 vsi->int_rate_limit); 3084 } 3085 3086 /* rx and tx usecs has per queue value. If user doesn't specify the 3087 * queue, apply to all queues. 3088 */ 3089 if (queue < 0) { 3090 for (i = 0; i < vsi->num_queue_pairs; i++) 3091 i40e_set_itr_per_queue(vsi, ec, i); 3092 } else { 3093 i40e_set_itr_per_queue(vsi, ec, queue); 3094 } 3095 3096 return 0; 3097} 3098 3099/** 3100 * i40e_set_coalesce - set coalesce settings for every queue on the netdev 3101 * @netdev: the netdev to change 3102 * @ec: ethtool coalesce settings 3103 * @kernel_coal: ethtool CQE mode setting structure 3104 * @extack: extack for reporting error messages 3105 * 3106 * This will set each queue to the same coalesce settings. 3107 **/ 3108static int i40e_set_coalesce(struct net_device *netdev, 3109 struct ethtool_coalesce *ec, 3110 struct kernel_ethtool_coalesce *kernel_coal, 3111 struct netlink_ext_ack *extack) 3112{ 3113 return __i40e_set_coalesce(netdev, ec, -1); 3114} 3115 3116/** 3117 * i40e_set_per_queue_coalesce - set specific queue's coalesce settings 3118 * @netdev: the netdev to change 3119 * @ec: ethtool's coalesce settings 3120 * @queue: the queue to change 3121 * 3122 * Sets the specified queue's coalesce settings. 3123 **/ 3124static int i40e_set_per_queue_coalesce(struct net_device *netdev, u32 queue, 3125 struct ethtool_coalesce *ec) 3126{ 3127 return __i40e_set_coalesce(netdev, ec, queue); 3128} 3129 3130static int i40e_get_rxfh_fields(struct net_device *netdev, 3131 struct ethtool_rxfh_fields *cmd) 3132{ 3133 struct i40e_netdev_priv *np = netdev_priv(netdev); 3134 struct i40e_vsi *vsi = np->vsi; 3135 struct i40e_pf *pf = vsi->back; 3136 struct i40e_hw *hw = &pf->hw; 3137 u8 flow_pctype = 0; 3138 u64 i_set = 0; 3139 3140 cmd->data = 0; 3141 3142 switch (cmd->flow_type) { 3143 case TCP_V4_FLOW: 3144 flow_pctype = LIBIE_FILTER_PCTYPE_NONF_IPV4_TCP; 3145 break; 3146 case UDP_V4_FLOW: 3147 flow_pctype = LIBIE_FILTER_PCTYPE_NONF_IPV4_UDP; 3148 break; 3149 case TCP_V6_FLOW: 3150 flow_pctype = LIBIE_FILTER_PCTYPE_NONF_IPV6_TCP; 3151 break; 3152 case UDP_V6_FLOW: 3153 flow_pctype = LIBIE_FILTER_PCTYPE_NONF_IPV6_UDP; 3154 break; 3155 case SCTP_V4_FLOW: 3156 case AH_ESP_V4_FLOW: 3157 case AH_V4_FLOW: 3158 case ESP_V4_FLOW: 3159 case IPV4_FLOW: 3160 case SCTP_V6_FLOW: 3161 case AH_ESP_V6_FLOW: 3162 case AH_V6_FLOW: 3163 case ESP_V6_FLOW: 3164 case IPV6_FLOW: 3165 /* Default is src/dest for IP, no matter the L4 hashing */ 3166 cmd->data |= RXH_IP_SRC | RXH_IP_DST; 3167 break; 3168 default: 3169 return -EINVAL; 3170 } 3171 3172 /* Read flow based hash input set register */ 3173 if (flow_pctype) { 3174 i_set = (u64)i40e_read_rx_ctl(hw, I40E_GLQF_HASH_INSET(0, 3175 flow_pctype)) | 3176 ((u64)i40e_read_rx_ctl(hw, I40E_GLQF_HASH_INSET(1, 3177 flow_pctype)) << 32); 3178 } 3179 3180 /* Process bits of hash input set */ 3181 if (i_set) { 3182 if (i_set & I40E_L4_SRC_MASK) 3183 cmd->data |= RXH_L4_B_0_1; 3184 if (i_set & I40E_L4_DST_MASK) 3185 cmd->data |= RXH_L4_B_2_3; 3186 3187 if (cmd->flow_type == TCP_V4_FLOW || 3188 cmd->flow_type == UDP_V4_FLOW) { 3189 if (hw->mac.type == I40E_MAC_X722) { 3190 if (i_set & I40E_X722_L3_SRC_MASK) 3191 cmd->data |= RXH_IP_SRC; 3192 if (i_set & I40E_X722_L3_DST_MASK) 3193 cmd->data |= RXH_IP_DST; 3194 } else { 3195 if (i_set & I40E_L3_SRC_MASK) 3196 cmd->data |= RXH_IP_SRC; 3197 if (i_set & I40E_L3_DST_MASK) 3198 cmd->data |= RXH_IP_DST; 3199 } 3200 } else if (cmd->flow_type == TCP_V6_FLOW || 3201 cmd->flow_type == UDP_V6_FLOW) { 3202 if (i_set & I40E_L3_V6_SRC_MASK) 3203 cmd->data |= RXH_IP_SRC; 3204 if (i_set & I40E_L3_V6_DST_MASK) 3205 cmd->data |= RXH_IP_DST; 3206 } 3207 } 3208 3209 return 0; 3210} 3211 3212/** 3213 * i40e_check_mask - Check whether a mask field is set 3214 * @mask: the full mask value 3215 * @field: mask of the field to check 3216 * 3217 * If the given mask is fully set, return positive value. If the mask for the 3218 * field is fully unset, return zero. Otherwise return a negative error code. 3219 **/ 3220static int i40e_check_mask(u64 mask, u64 field) 3221{ 3222 u64 value = mask & field; 3223 3224 if (value == field) 3225 return 1; 3226 else if (!value) 3227 return 0; 3228 else 3229 return -1; 3230} 3231 3232/** 3233 * i40e_parse_rx_flow_user_data - Deconstruct user-defined data 3234 * @fsp: pointer to rx flow specification 3235 * @data: pointer to userdef data structure for storage 3236 * 3237 * Read the user-defined data and deconstruct the value into a structure. No 3238 * other code should read the user-defined data, so as to ensure that every 3239 * place consistently reads the value correctly. 3240 * 3241 * The user-defined field is a 64bit Big Endian format value, which we 3242 * deconstruct by reading bits or bit fields from it. Single bit flags shall 3243 * be defined starting from the highest bits, while small bit field values 3244 * shall be defined starting from the lowest bits. 3245 * 3246 * Returns 0 if the data is valid, and non-zero if the userdef data is invalid 3247 * and the filter should be rejected. The data structure will always be 3248 * modified even if FLOW_EXT is not set. 3249 * 3250 **/ 3251static int i40e_parse_rx_flow_user_data(struct ethtool_rx_flow_spec *fsp, 3252 struct i40e_rx_flow_userdef *data) 3253{ 3254 u64 value, mask; 3255 int valid; 3256 3257 /* Zero memory first so it's always consistent. */ 3258 memset(data, 0, sizeof(*data)); 3259 3260 if (!(fsp->flow_type & FLOW_EXT)) 3261 return 0; 3262 3263 value = be64_to_cpu(*((__be64 *)fsp->h_ext.data)); 3264 mask = be64_to_cpu(*((__be64 *)fsp->m_ext.data)); 3265 3266#define I40E_USERDEF_FLEX_WORD GENMASK_ULL(15, 0) 3267#define I40E_USERDEF_FLEX_OFFSET GENMASK_ULL(31, 16) 3268#define I40E_USERDEF_FLEX_FILTER GENMASK_ULL(31, 0) 3269 3270 valid = i40e_check_mask(mask, I40E_USERDEF_FLEX_FILTER); 3271 if (valid < 0) { 3272 return -EINVAL; 3273 } else if (valid) { 3274 data->flex_word = value & I40E_USERDEF_FLEX_WORD; 3275 data->flex_offset = 3276 FIELD_GET(I40E_USERDEF_FLEX_OFFSET, value); 3277 data->flex_filter = true; 3278 } 3279 3280 return 0; 3281} 3282 3283/** 3284 * i40e_fill_rx_flow_user_data - Fill in user-defined data field 3285 * @fsp: pointer to rx_flow specification 3286 * @data: pointer to return userdef data 3287 * 3288 * Reads the userdef data structure and properly fills in the user defined 3289 * fields of the rx_flow_spec. 3290 **/ 3291static void i40e_fill_rx_flow_user_data(struct ethtool_rx_flow_spec *fsp, 3292 struct i40e_rx_flow_userdef *data) 3293{ 3294 u64 value = 0, mask = 0; 3295 3296 if (data->flex_filter) { 3297 value |= data->flex_word; 3298 value |= (u64)data->flex_offset << 16; 3299 mask |= I40E_USERDEF_FLEX_FILTER; 3300 } 3301 3302 if (value || mask) 3303 fsp->flow_type |= FLOW_EXT; 3304 3305 *((__be64 *)fsp->h_ext.data) = cpu_to_be64(value); 3306 *((__be64 *)fsp->m_ext.data) = cpu_to_be64(mask); 3307} 3308 3309/** 3310 * i40e_get_ethtool_fdir_all - Populates the rule count of a command 3311 * @pf: Pointer to the physical function struct 3312 * @cmd: The command to get or set Rx flow classification rules 3313 * @rule_locs: Array of used rule locations 3314 * 3315 * This function populates both the total and actual rule count of 3316 * the ethtool flow classification command 3317 * 3318 * Returns 0 on success or -EMSGSIZE if entry not found 3319 **/ 3320static int i40e_get_ethtool_fdir_all(struct i40e_pf *pf, 3321 struct ethtool_rxnfc *cmd, 3322 u32 *rule_locs) 3323{ 3324 struct i40e_fdir_filter *rule; 3325 struct hlist_node *node2; 3326 int cnt = 0; 3327 3328 /* report total rule count */ 3329 cmd->data = i40e_get_fd_cnt_all(pf); 3330 3331 hlist_for_each_entry_safe(rule, node2, 3332 &pf->fdir_filter_list, fdir_node) { 3333 if (cnt == cmd->rule_cnt) 3334 return -EMSGSIZE; 3335 3336 rule_locs[cnt] = rule->fd_id; 3337 cnt++; 3338 } 3339 3340 cmd->rule_cnt = cnt; 3341 3342 return 0; 3343} 3344 3345/** 3346 * i40e_get_ethtool_fdir_entry - Look up a filter based on Rx flow 3347 * @pf: Pointer to the physical function struct 3348 * @cmd: The command to get or set Rx flow classification rules 3349 * 3350 * This function looks up a filter based on the Rx flow classification 3351 * command and fills the flow spec info for it if found 3352 * 3353 * Returns 0 on success or -EINVAL if filter not found 3354 **/ 3355static int i40e_get_ethtool_fdir_entry(struct i40e_pf *pf, 3356 struct ethtool_rxnfc *cmd) 3357{ 3358 struct ethtool_rx_flow_spec *fsp = 3359 (struct ethtool_rx_flow_spec *)&cmd->fs; 3360 struct i40e_rx_flow_userdef userdef = {0}; 3361 struct i40e_fdir_filter *rule = NULL; 3362 struct hlist_node *node2; 3363 struct i40e_vsi *vsi; 3364 u64 input_set; 3365 u16 index; 3366 3367 hlist_for_each_entry_safe(rule, node2, 3368 &pf->fdir_filter_list, fdir_node) { 3369 if (fsp->location <= rule->fd_id) 3370 break; 3371 } 3372 3373 if (!rule || fsp->location != rule->fd_id) 3374 return -EINVAL; 3375 3376 fsp->flow_type = rule->flow_type; 3377 if (fsp->flow_type == IP_USER_FLOW) { 3378 fsp->h_u.usr_ip4_spec.ip_ver = ETH_RX_NFC_IP4; 3379 fsp->h_u.usr_ip4_spec.proto = 0; 3380 fsp->m_u.usr_ip4_spec.proto = 0; 3381 } 3382 3383 if (fsp->flow_type == IPV6_USER_FLOW || 3384 fsp->flow_type == UDP_V6_FLOW || 3385 fsp->flow_type == TCP_V6_FLOW || 3386 fsp->flow_type == SCTP_V6_FLOW) { 3387 /* Reverse the src and dest notion, since the HW views them 3388 * from Tx perspective where as the user expects it from 3389 * Rx filter view. 3390 */ 3391 fsp->h_u.tcp_ip6_spec.psrc = rule->dst_port; 3392 fsp->h_u.tcp_ip6_spec.pdst = rule->src_port; 3393 memcpy(fsp->h_u.tcp_ip6_spec.ip6dst, rule->src_ip6, 3394 sizeof(__be32) * 4); 3395 memcpy(fsp->h_u.tcp_ip6_spec.ip6src, rule->dst_ip6, 3396 sizeof(__be32) * 4); 3397 } else { 3398 /* Reverse the src and dest notion, since the HW views them 3399 * from Tx perspective where as the user expects it from 3400 * Rx filter view. 3401 */ 3402 fsp->h_u.tcp_ip4_spec.psrc = rule->dst_port; 3403 fsp->h_u.tcp_ip4_spec.pdst = rule->src_port; 3404 fsp->h_u.tcp_ip4_spec.ip4src = rule->dst_ip; 3405 fsp->h_u.tcp_ip4_spec.ip4dst = rule->src_ip; 3406 } 3407 3408 switch (rule->flow_type) { 3409 case SCTP_V4_FLOW: 3410 index = LIBIE_FILTER_PCTYPE_NONF_IPV4_SCTP; 3411 break; 3412 case TCP_V4_FLOW: 3413 index = LIBIE_FILTER_PCTYPE_NONF_IPV4_TCP; 3414 break; 3415 case UDP_V4_FLOW: 3416 index = LIBIE_FILTER_PCTYPE_NONF_IPV4_UDP; 3417 break; 3418 case SCTP_V6_FLOW: 3419 index = LIBIE_FILTER_PCTYPE_NONF_IPV6_SCTP; 3420 break; 3421 case TCP_V6_FLOW: 3422 index = LIBIE_FILTER_PCTYPE_NONF_IPV6_TCP; 3423 break; 3424 case UDP_V6_FLOW: 3425 index = LIBIE_FILTER_PCTYPE_NONF_IPV6_UDP; 3426 break; 3427 case IP_USER_FLOW: 3428 index = LIBIE_FILTER_PCTYPE_NONF_IPV4_OTHER; 3429 break; 3430 case IPV6_USER_FLOW: 3431 index = LIBIE_FILTER_PCTYPE_NONF_IPV6_OTHER; 3432 break; 3433 default: 3434 /* If we have stored a filter with a flow type not listed here 3435 * it is almost certainly a driver bug. WARN(), and then 3436 * assign the input_set as if all fields are enabled to avoid 3437 * reading unassigned memory. 3438 */ 3439 WARN(1, "Missing input set index for flow_type %d\n", 3440 rule->flow_type); 3441 input_set = 0xFFFFFFFFFFFFFFFFULL; 3442 goto no_input_set; 3443 } 3444 3445 input_set = i40e_read_fd_input_set(pf, index); 3446 3447no_input_set: 3448 if (input_set & I40E_L3_V6_SRC_MASK) { 3449 fsp->m_u.tcp_ip6_spec.ip6src[0] = htonl(0xFFFFFFFF); 3450 fsp->m_u.tcp_ip6_spec.ip6src[1] = htonl(0xFFFFFFFF); 3451 fsp->m_u.tcp_ip6_spec.ip6src[2] = htonl(0xFFFFFFFF); 3452 fsp->m_u.tcp_ip6_spec.ip6src[3] = htonl(0xFFFFFFFF); 3453 } 3454 3455 if (input_set & I40E_L3_V6_DST_MASK) { 3456 fsp->m_u.tcp_ip6_spec.ip6dst[0] = htonl(0xFFFFFFFF); 3457 fsp->m_u.tcp_ip6_spec.ip6dst[1] = htonl(0xFFFFFFFF); 3458 fsp->m_u.tcp_ip6_spec.ip6dst[2] = htonl(0xFFFFFFFF); 3459 fsp->m_u.tcp_ip6_spec.ip6dst[3] = htonl(0xFFFFFFFF); 3460 } 3461 3462 if (input_set & I40E_L3_SRC_MASK) 3463 fsp->m_u.tcp_ip4_spec.ip4src = htonl(0xFFFFFFFF); 3464 3465 if (input_set & I40E_L3_DST_MASK) 3466 fsp->m_u.tcp_ip4_spec.ip4dst = htonl(0xFFFFFFFF); 3467 3468 if (input_set & I40E_L4_SRC_MASK) 3469 fsp->m_u.tcp_ip4_spec.psrc = htons(0xFFFF); 3470 3471 if (input_set & I40E_L4_DST_MASK) 3472 fsp->m_u.tcp_ip4_spec.pdst = htons(0xFFFF); 3473 3474 if (rule->dest_ctl == I40E_FILTER_PROGRAM_DESC_DEST_DROP_PACKET) 3475 fsp->ring_cookie = RX_CLS_FLOW_DISC; 3476 else 3477 fsp->ring_cookie = rule->q_index; 3478 3479 if (rule->vlan_tag) { 3480 fsp->h_ext.vlan_etype = rule->vlan_etype; 3481 fsp->m_ext.vlan_etype = htons(0xFFFF); 3482 fsp->h_ext.vlan_tci = rule->vlan_tag; 3483 fsp->m_ext.vlan_tci = htons(0xFFFF); 3484 fsp->flow_type |= FLOW_EXT; 3485 } 3486 3487 vsi = i40e_pf_get_main_vsi(pf); 3488 if (rule->dest_vsi != vsi->id) { 3489 vsi = i40e_find_vsi_from_id(pf, rule->dest_vsi); 3490 if (vsi && vsi->type == I40E_VSI_SRIOV) { 3491 /* VFs are zero-indexed by the driver, but ethtool 3492 * expects them to be one-indexed, so add one here 3493 */ 3494 u64 ring_vf = vsi->vf_id + 1; 3495 3496 ring_vf <<= ETHTOOL_RX_FLOW_SPEC_RING_VF_OFF; 3497 fsp->ring_cookie |= ring_vf; 3498 } 3499 } 3500 3501 if (rule->flex_filter) { 3502 userdef.flex_filter = true; 3503 userdef.flex_word = be16_to_cpu(rule->flex_word); 3504 userdef.flex_offset = rule->flex_offset; 3505 } 3506 3507 i40e_fill_rx_flow_user_data(fsp, &userdef); 3508 3509 return 0; 3510} 3511 3512/** 3513 * i40e_get_rx_ring_count - get RX ring count 3514 * @netdev: network interface device structure 3515 * 3516 * Return: number of RX rings. 3517 **/ 3518static u32 i40e_get_rx_ring_count(struct net_device *netdev) 3519{ 3520 struct i40e_netdev_priv *np = netdev_priv(netdev); 3521 struct i40e_vsi *vsi = np->vsi; 3522 3523 return vsi->rss_size; 3524} 3525 3526/** 3527 * i40e_get_rxnfc - command to get RX flow classification rules 3528 * @netdev: network interface device structure 3529 * @cmd: ethtool rxnfc command 3530 * @rule_locs: pointer to store rule data 3531 * 3532 * Returns Success if the command is supported. 3533 **/ 3534static int i40e_get_rxnfc(struct net_device *netdev, struct ethtool_rxnfc *cmd, 3535 u32 *rule_locs) 3536{ 3537 struct i40e_netdev_priv *np = netdev_priv(netdev); 3538 struct i40e_vsi *vsi = np->vsi; 3539 struct i40e_pf *pf = vsi->back; 3540 int ret = -EOPNOTSUPP; 3541 3542 switch (cmd->cmd) { 3543 case ETHTOOL_GRXCLSRLCNT: 3544 cmd->rule_cnt = pf->fdir_pf_active_filters; 3545 /* report total rule count */ 3546 cmd->data = i40e_get_fd_cnt_all(pf); 3547 ret = 0; 3548 break; 3549 case ETHTOOL_GRXCLSRULE: 3550 ret = i40e_get_ethtool_fdir_entry(pf, cmd); 3551 break; 3552 case ETHTOOL_GRXCLSRLALL: 3553 ret = i40e_get_ethtool_fdir_all(pf, cmd, rule_locs); 3554 break; 3555 default: 3556 break; 3557 } 3558 3559 return ret; 3560} 3561 3562/** 3563 * i40e_get_rss_hash_bits - Read RSS Hash bits from register 3564 * @hw: hw structure 3565 * @nfc: pointer to user request 3566 * @i_setc: bits currently set 3567 * 3568 * Returns value of bits to be set per user request 3569 **/ 3570static u64 i40e_get_rss_hash_bits(struct i40e_hw *hw, 3571 const struct ethtool_rxfh_fields *nfc, 3572 u64 i_setc) 3573{ 3574 u64 i_set = i_setc; 3575 u64 src_l3 = 0, dst_l3 = 0; 3576 3577 if (nfc->data & RXH_L4_B_0_1) 3578 i_set |= I40E_L4_SRC_MASK; 3579 else 3580 i_set &= ~I40E_L4_SRC_MASK; 3581 if (nfc->data & RXH_L4_B_2_3) 3582 i_set |= I40E_L4_DST_MASK; 3583 else 3584 i_set &= ~I40E_L4_DST_MASK; 3585 3586 if (nfc->flow_type == TCP_V6_FLOW || nfc->flow_type == UDP_V6_FLOW) { 3587 src_l3 = I40E_L3_V6_SRC_MASK; 3588 dst_l3 = I40E_L3_V6_DST_MASK; 3589 } else if (nfc->flow_type == TCP_V4_FLOW || 3590 nfc->flow_type == UDP_V4_FLOW) { 3591 if (hw->mac.type == I40E_MAC_X722) { 3592 src_l3 = I40E_X722_L3_SRC_MASK; 3593 dst_l3 = I40E_X722_L3_DST_MASK; 3594 } else { 3595 src_l3 = I40E_L3_SRC_MASK; 3596 dst_l3 = I40E_L3_DST_MASK; 3597 } 3598 } else { 3599 /* Any other flow type are not supported here */ 3600 return i_set; 3601 } 3602 3603 if (nfc->data & RXH_IP_SRC) 3604 i_set |= src_l3; 3605 else 3606 i_set &= ~src_l3; 3607 if (nfc->data & RXH_IP_DST) 3608 i_set |= dst_l3; 3609 else 3610 i_set &= ~dst_l3; 3611 3612 return i_set; 3613} 3614 3615#define FLOW_PCTYPES_SIZE 64 3616static int i40e_set_rxfh_fields(struct net_device *netdev, 3617 const struct ethtool_rxfh_fields *nfc, 3618 struct netlink_ext_ack *extack) 3619{ 3620 struct i40e_netdev_priv *np = netdev_priv(netdev); 3621 struct i40e_vsi *vsi = np->vsi; 3622 struct i40e_pf *pf = vsi->back; 3623 struct i40e_hw *hw = &pf->hw; 3624 u64 hena = (u64)i40e_read_rx_ctl(hw, I40E_PFQF_HENA(0)) | 3625 ((u64)i40e_read_rx_ctl(hw, I40E_PFQF_HENA(1)) << 32); 3626 DECLARE_BITMAP(flow_pctypes, FLOW_PCTYPES_SIZE); 3627 u64 i_set, i_setc; 3628 3629 bitmap_zero(flow_pctypes, FLOW_PCTYPES_SIZE); 3630 3631 if (test_bit(I40E_FLAG_MFP_ENA, pf->flags)) { 3632 dev_err(&pf->pdev->dev, 3633 "Change of RSS hash input set is not supported when MFP mode is enabled\n"); 3634 return -EOPNOTSUPP; 3635 } 3636 3637 /* RSS does not support anything other than hashing 3638 * to queues on src and dst IPs and ports 3639 */ 3640 if (nfc->data & ~(RXH_IP_SRC | RXH_IP_DST | 3641 RXH_L4_B_0_1 | RXH_L4_B_2_3)) 3642 return -EINVAL; 3643 3644 switch (nfc->flow_type) { 3645 case TCP_V4_FLOW: 3646 set_bit(LIBIE_FILTER_PCTYPE_NONF_IPV4_TCP, flow_pctypes); 3647 if (test_bit(I40E_HW_CAP_MULTI_TCP_UDP_RSS_PCTYPE, 3648 pf->hw.caps)) 3649 set_bit(LIBIE_FILTER_PCTYPE_NONF_IPV4_TCP_SYN_NO_ACK, 3650 flow_pctypes); 3651 break; 3652 case TCP_V6_FLOW: 3653 set_bit(LIBIE_FILTER_PCTYPE_NONF_IPV6_TCP, flow_pctypes); 3654 if (test_bit(I40E_HW_CAP_MULTI_TCP_UDP_RSS_PCTYPE, 3655 pf->hw.caps)) 3656 set_bit(LIBIE_FILTER_PCTYPE_NONF_IPV6_TCP_SYN_NO_ACK, 3657 flow_pctypes); 3658 break; 3659 case UDP_V4_FLOW: 3660 set_bit(LIBIE_FILTER_PCTYPE_NONF_IPV4_UDP, flow_pctypes); 3661 if (test_bit(I40E_HW_CAP_MULTI_TCP_UDP_RSS_PCTYPE, 3662 pf->hw.caps)) { 3663 set_bit(LIBIE_FILTER_PCTYPE_NONF_UNICAST_IPV4_UDP, 3664 flow_pctypes); 3665 set_bit(LIBIE_FILTER_PCTYPE_NONF_MULTICAST_IPV4_UDP, 3666 flow_pctypes); 3667 } 3668 hena |= BIT_ULL(LIBIE_FILTER_PCTYPE_FRAG_IPV4); 3669 break; 3670 case UDP_V6_FLOW: 3671 set_bit(LIBIE_FILTER_PCTYPE_NONF_IPV6_UDP, flow_pctypes); 3672 if (test_bit(I40E_HW_CAP_MULTI_TCP_UDP_RSS_PCTYPE, 3673 pf->hw.caps)) { 3674 set_bit(LIBIE_FILTER_PCTYPE_NONF_UNICAST_IPV6_UDP, 3675 flow_pctypes); 3676 set_bit(LIBIE_FILTER_PCTYPE_NONF_MULTICAST_IPV6_UDP, 3677 flow_pctypes); 3678 } 3679 hena |= BIT_ULL(LIBIE_FILTER_PCTYPE_FRAG_IPV6); 3680 break; 3681 case AH_ESP_V4_FLOW: 3682 case AH_V4_FLOW: 3683 case ESP_V4_FLOW: 3684 case SCTP_V4_FLOW: 3685 if ((nfc->data & RXH_L4_B_0_1) || 3686 (nfc->data & RXH_L4_B_2_3)) 3687 return -EINVAL; 3688 hena |= BIT_ULL(LIBIE_FILTER_PCTYPE_NONF_IPV4_OTHER); 3689 break; 3690 case AH_ESP_V6_FLOW: 3691 case AH_V6_FLOW: 3692 case ESP_V6_FLOW: 3693 case SCTP_V6_FLOW: 3694 if ((nfc->data & RXH_L4_B_0_1) || 3695 (nfc->data & RXH_L4_B_2_3)) 3696 return -EINVAL; 3697 hena |= BIT_ULL(LIBIE_FILTER_PCTYPE_NONF_IPV6_OTHER); 3698 break; 3699 case IPV4_FLOW: 3700 hena |= BIT_ULL(LIBIE_FILTER_PCTYPE_NONF_IPV4_OTHER) | 3701 BIT_ULL(LIBIE_FILTER_PCTYPE_FRAG_IPV4); 3702 break; 3703 case IPV6_FLOW: 3704 hena |= BIT_ULL(LIBIE_FILTER_PCTYPE_NONF_IPV6_OTHER) | 3705 BIT_ULL(LIBIE_FILTER_PCTYPE_FRAG_IPV6); 3706 break; 3707 default: 3708 return -EINVAL; 3709 } 3710 3711 if (bitmap_weight(flow_pctypes, FLOW_PCTYPES_SIZE)) { 3712 u8 flow_id; 3713 3714 for_each_set_bit(flow_id, flow_pctypes, FLOW_PCTYPES_SIZE) { 3715 i_setc = (u64)i40e_read_rx_ctl(hw, I40E_GLQF_HASH_INSET(0, flow_id)) | 3716 ((u64)i40e_read_rx_ctl(hw, I40E_GLQF_HASH_INSET(1, flow_id)) << 32); 3717 i_set = i40e_get_rss_hash_bits(&pf->hw, nfc, i_setc); 3718 3719 i40e_write_rx_ctl(hw, I40E_GLQF_HASH_INSET(0, flow_id), 3720 (u32)i_set); 3721 i40e_write_rx_ctl(hw, I40E_GLQF_HASH_INSET(1, flow_id), 3722 (u32)(i_set >> 32)); 3723 hena |= BIT_ULL(flow_id); 3724 } 3725 } 3726 3727 i40e_write_rx_ctl(hw, I40E_PFQF_HENA(0), (u32)hena); 3728 i40e_write_rx_ctl(hw, I40E_PFQF_HENA(1), (u32)(hena >> 32)); 3729 i40e_flush(hw); 3730 3731 return 0; 3732} 3733 3734/** 3735 * i40e_update_ethtool_fdir_entry - Updates the fdir filter entry 3736 * @vsi: Pointer to the targeted VSI 3737 * @input: The filter to update or NULL to indicate deletion 3738 * @sw_idx: Software index to the filter 3739 * @cmd: The command to get or set Rx flow classification rules 3740 * 3741 * This function updates (or deletes) a Flow Director entry from 3742 * the hlist of the corresponding PF 3743 * 3744 * Returns 0 on success 3745 **/ 3746static int i40e_update_ethtool_fdir_entry(struct i40e_vsi *vsi, 3747 struct i40e_fdir_filter *input, 3748 u16 sw_idx, 3749 struct ethtool_rxnfc *cmd) 3750{ 3751 struct i40e_fdir_filter *rule, *parent; 3752 struct i40e_pf *pf = vsi->back; 3753 struct hlist_node *node2; 3754 int err = -EINVAL; 3755 3756 parent = NULL; 3757 rule = NULL; 3758 3759 hlist_for_each_entry_safe(rule, node2, 3760 &pf->fdir_filter_list, fdir_node) { 3761 /* hash found, or no matching entry */ 3762 if (rule->fd_id >= sw_idx) 3763 break; 3764 parent = rule; 3765 } 3766 3767 /* if there is an old rule occupying our place remove it */ 3768 if (rule && (rule->fd_id == sw_idx)) { 3769 /* Remove this rule, since we're either deleting it, or 3770 * replacing it. 3771 */ 3772 err = i40e_add_del_fdir(vsi, rule, false); 3773 hlist_del(&rule->fdir_node); 3774 kfree(rule); 3775 pf->fdir_pf_active_filters--; 3776 } 3777 3778 /* If we weren't given an input, this is a delete, so just return the 3779 * error code indicating if there was an entry at the requested slot 3780 */ 3781 if (!input) 3782 return err; 3783 3784 /* Otherwise, install the new rule as requested */ 3785 INIT_HLIST_NODE(&input->fdir_node); 3786 3787 /* add filter to the list */ 3788 if (parent) 3789 hlist_add_behind(&input->fdir_node, &parent->fdir_node); 3790 else 3791 hlist_add_head(&input->fdir_node, 3792 &pf->fdir_filter_list); 3793 3794 /* update counts */ 3795 pf->fdir_pf_active_filters++; 3796 3797 return 0; 3798} 3799 3800/** 3801 * i40e_prune_flex_pit_list - Cleanup unused entries in FLX_PIT table 3802 * @pf: pointer to PF structure 3803 * 3804 * This function searches the list of filters and determines which FLX_PIT 3805 * entries are still required. It will prune any entries which are no longer 3806 * in use after the deletion. 3807 **/ 3808static void i40e_prune_flex_pit_list(struct i40e_pf *pf) 3809{ 3810 struct i40e_flex_pit *entry, *tmp; 3811 struct i40e_fdir_filter *rule; 3812 3813 /* First, we'll check the l3 table */ 3814 list_for_each_entry_safe(entry, tmp, &pf->l3_flex_pit_list, list) { 3815 bool found = false; 3816 3817 hlist_for_each_entry(rule, &pf->fdir_filter_list, fdir_node) { 3818 if (rule->flow_type != IP_USER_FLOW) 3819 continue; 3820 if (rule->flex_filter && 3821 rule->flex_offset == entry->src_offset) { 3822 found = true; 3823 break; 3824 } 3825 } 3826 3827 /* If we didn't find the filter, then we can prune this entry 3828 * from the list. 3829 */ 3830 if (!found) { 3831 list_del(&entry->list); 3832 kfree(entry); 3833 } 3834 } 3835 3836 /* Followed by the L4 table */ 3837 list_for_each_entry_safe(entry, tmp, &pf->l4_flex_pit_list, list) { 3838 bool found = false; 3839 3840 hlist_for_each_entry(rule, &pf->fdir_filter_list, fdir_node) { 3841 /* Skip this filter if it's L3, since we already 3842 * checked those in the above loop 3843 */ 3844 if (rule->flow_type == IP_USER_FLOW) 3845 continue; 3846 if (rule->flex_filter && 3847 rule->flex_offset == entry->src_offset) { 3848 found = true; 3849 break; 3850 } 3851 } 3852 3853 /* If we didn't find the filter, then we can prune this entry 3854 * from the list. 3855 */ 3856 if (!found) { 3857 list_del(&entry->list); 3858 kfree(entry); 3859 } 3860 } 3861} 3862 3863/** 3864 * i40e_del_fdir_entry - Deletes a Flow Director filter entry 3865 * @vsi: Pointer to the targeted VSI 3866 * @cmd: The command to get or set Rx flow classification rules 3867 * 3868 * The function removes a Flow Director filter entry from the 3869 * hlist of the corresponding PF 3870 * 3871 * Returns 0 on success 3872 */ 3873static int i40e_del_fdir_entry(struct i40e_vsi *vsi, 3874 struct ethtool_rxnfc *cmd) 3875{ 3876 struct ethtool_rx_flow_spec *fsp = 3877 (struct ethtool_rx_flow_spec *)&cmd->fs; 3878 struct i40e_pf *pf = vsi->back; 3879 int ret = 0; 3880 3881 if (test_bit(__I40E_RESET_RECOVERY_PENDING, pf->state) || 3882 test_bit(__I40E_RESET_INTR_RECEIVED, pf->state)) 3883 return -EBUSY; 3884 3885 if (test_bit(__I40E_FD_FLUSH_REQUESTED, pf->state)) 3886 return -EBUSY; 3887 3888 ret = i40e_update_ethtool_fdir_entry(vsi, NULL, fsp->location, cmd); 3889 3890 i40e_prune_flex_pit_list(pf); 3891 3892 i40e_fdir_check_and_reenable(pf); 3893 return ret; 3894} 3895 3896/** 3897 * i40e_unused_pit_index - Find an unused PIT index for given list 3898 * @pf: the PF data structure 3899 * 3900 * Find the first unused flexible PIT index entry. We search both the L3 and 3901 * L4 flexible PIT lists so that the returned index is unique and unused by 3902 * either currently programmed L3 or L4 filters. We use a bit field as storage 3903 * to track which indexes are already used. 3904 **/ 3905static u8 i40e_unused_pit_index(struct i40e_pf *pf) 3906{ 3907 unsigned long available_index = 0xFF; 3908 struct i40e_flex_pit *entry; 3909 3910 /* We need to make sure that the new index isn't in use by either L3 3911 * or L4 filters so that IP_USER_FLOW filters can program both L3 and 3912 * L4 to use the same index. 3913 */ 3914 3915 list_for_each_entry(entry, &pf->l4_flex_pit_list, list) 3916 clear_bit(entry->pit_index, &available_index); 3917 3918 list_for_each_entry(entry, &pf->l3_flex_pit_list, list) 3919 clear_bit(entry->pit_index, &available_index); 3920 3921 return find_first_bit(&available_index, 8); 3922} 3923 3924/** 3925 * i40e_find_flex_offset - Find an existing flex src_offset 3926 * @flex_pit_list: L3 or L4 flex PIT list 3927 * @src_offset: new src_offset to find 3928 * 3929 * Searches the flex_pit_list for an existing offset. If no offset is 3930 * currently programmed, then this will return an ERR_PTR if there is no space 3931 * to add a new offset, otherwise it returns NULL. 3932 **/ 3933static 3934struct i40e_flex_pit *i40e_find_flex_offset(struct list_head *flex_pit_list, 3935 u16 src_offset) 3936{ 3937 struct i40e_flex_pit *entry; 3938 int size = 0; 3939 3940 /* Search for the src_offset first. If we find a matching entry 3941 * already programmed, we can simply re-use it. 3942 */ 3943 list_for_each_entry(entry, flex_pit_list, list) { 3944 size++; 3945 if (entry->src_offset == src_offset) 3946 return entry; 3947 } 3948 3949 /* If we haven't found an entry yet, then the provided src offset has 3950 * not yet been programmed. We will program the src offset later on, 3951 * but we need to indicate whether there is enough space to do so 3952 * here. We'll make use of ERR_PTR for this purpose. 3953 */ 3954 if (size >= I40E_FLEX_PIT_TABLE_SIZE) 3955 return ERR_PTR(-ENOSPC); 3956 3957 return NULL; 3958} 3959 3960/** 3961 * i40e_add_flex_offset - Add src_offset to flex PIT table list 3962 * @flex_pit_list: L3 or L4 flex PIT list 3963 * @src_offset: new src_offset to add 3964 * @pit_index: the PIT index to program 3965 * 3966 * This function programs the new src_offset to the list. It is expected that 3967 * i40e_find_flex_offset has already been tried and returned NULL, indicating 3968 * that this offset is not programmed, and that the list has enough space to 3969 * store another offset. 3970 * 3971 * Returns 0 on success, and negative value on error. 3972 **/ 3973static int i40e_add_flex_offset(struct list_head *flex_pit_list, 3974 u16 src_offset, 3975 u8 pit_index) 3976{ 3977 struct i40e_flex_pit *new_pit, *entry; 3978 3979 new_pit = kzalloc(sizeof(*entry), GFP_KERNEL); 3980 if (!new_pit) 3981 return -ENOMEM; 3982 3983 new_pit->src_offset = src_offset; 3984 new_pit->pit_index = pit_index; 3985 3986 /* We need to insert this item such that the list is sorted by 3987 * src_offset in ascending order. 3988 */ 3989 list_for_each_entry(entry, flex_pit_list, list) { 3990 if (new_pit->src_offset < entry->src_offset) { 3991 list_add_tail(&new_pit->list, &entry->list); 3992 return 0; 3993 } 3994 3995 /* If we found an entry with our offset already programmed we 3996 * can simply return here, after freeing the memory. However, 3997 * if the pit_index does not match we need to report an error. 3998 */ 3999 if (new_pit->src_offset == entry->src_offset) { 4000 int err = 0; 4001 4002 /* If the PIT index is not the same we can't re-use 4003 * the entry, so we must report an error. 4004 */ 4005 if (new_pit->pit_index != entry->pit_index) 4006 err = -EINVAL; 4007 4008 kfree(new_pit); 4009 return err; 4010 } 4011 } 4012 4013 /* If we reached here, then we haven't yet added the item. This means 4014 * that we should add the item at the end of the list. 4015 */ 4016 list_add_tail(&new_pit->list, flex_pit_list); 4017 return 0; 4018} 4019 4020/** 4021 * __i40e_reprogram_flex_pit - Re-program specific FLX_PIT table 4022 * @pf: Pointer to the PF structure 4023 * @flex_pit_list: list of flexible src offsets in use 4024 * @flex_pit_start: index to first entry for this section of the table 4025 * 4026 * In order to handle flexible data, the hardware uses a table of values 4027 * called the FLX_PIT table. This table is used to indicate which sections of 4028 * the input correspond to what PIT index values. Unfortunately, hardware is 4029 * very restrictive about programming this table. Entries must be ordered by 4030 * src_offset in ascending order, without duplicates. Additionally, unused 4031 * entries must be set to the unused index value, and must have valid size and 4032 * length according to the src_offset ordering. 4033 * 4034 * This function will reprogram the FLX_PIT register from a book-keeping 4035 * structure that we guarantee is already ordered correctly, and has no more 4036 * than 3 entries. 4037 * 4038 * To make things easier, we only support flexible values of one word length, 4039 * rather than allowing variable length flexible values. 4040 **/ 4041static void __i40e_reprogram_flex_pit(struct i40e_pf *pf, 4042 struct list_head *flex_pit_list, 4043 int flex_pit_start) 4044{ 4045 struct i40e_flex_pit *entry = NULL; 4046 u16 last_offset = 0; 4047 int i = 0, j = 0; 4048 4049 /* First, loop over the list of flex PIT entries, and reprogram the 4050 * registers. 4051 */ 4052 list_for_each_entry(entry, flex_pit_list, list) { 4053 /* We have to be careful when programming values for the 4054 * largest SRC_OFFSET value. It is possible that adding 4055 * additional empty values at the end would overflow the space 4056 * for the SRC_OFFSET in the FLX_PIT register. To avoid this, 4057 * we check here and add the empty values prior to adding the 4058 * largest value. 4059 * 4060 * To determine this, we will use a loop from i+1 to 3, which 4061 * will determine whether the unused entries would have valid 4062 * SRC_OFFSET. Note that there cannot be extra entries past 4063 * this value, because the only valid values would have been 4064 * larger than I40E_MAX_FLEX_SRC_OFFSET, and thus would not 4065 * have been added to the list in the first place. 4066 */ 4067 for (j = i + 1; j < 3; j++) { 4068 u16 offset = entry->src_offset + j; 4069 int index = flex_pit_start + i; 4070 u32 value = I40E_FLEX_PREP_VAL(I40E_FLEX_DEST_UNUSED, 4071 1, 4072 offset - 3); 4073 4074 if (offset > I40E_MAX_FLEX_SRC_OFFSET) { 4075 i40e_write_rx_ctl(&pf->hw, 4076 I40E_PRTQF_FLX_PIT(index), 4077 value); 4078 i++; 4079 } 4080 } 4081 4082 /* Now, we can program the actual value into the table */ 4083 i40e_write_rx_ctl(&pf->hw, 4084 I40E_PRTQF_FLX_PIT(flex_pit_start + i), 4085 I40E_FLEX_PREP_VAL(entry->pit_index + 50, 4086 1, 4087 entry->src_offset)); 4088 i++; 4089 } 4090 4091 /* In order to program the last entries in the table, we need to 4092 * determine the valid offset. If the list is empty, we'll just start 4093 * with 0. Otherwise, we'll start with the last item offset and add 1. 4094 * This ensures that all entries have valid sizes. If we don't do this 4095 * correctly, the hardware will disable flexible field parsing. 4096 */ 4097 if (!list_empty(flex_pit_list)) 4098 last_offset = list_prev_entry(entry, list)->src_offset + 1; 4099 4100 for (; i < 3; i++, last_offset++) { 4101 i40e_write_rx_ctl(&pf->hw, 4102 I40E_PRTQF_FLX_PIT(flex_pit_start + i), 4103 I40E_FLEX_PREP_VAL(I40E_FLEX_DEST_UNUSED, 4104 1, 4105 last_offset)); 4106 } 4107} 4108 4109/** 4110 * i40e_reprogram_flex_pit - Reprogram all FLX_PIT tables after input set change 4111 * @pf: pointer to the PF structure 4112 * 4113 * This function reprograms both the L3 and L4 FLX_PIT tables. See the 4114 * internal helper function for implementation details. 4115 **/ 4116static void i40e_reprogram_flex_pit(struct i40e_pf *pf) 4117{ 4118 __i40e_reprogram_flex_pit(pf, &pf->l3_flex_pit_list, 4119 I40E_FLEX_PIT_IDX_START_L3); 4120 4121 __i40e_reprogram_flex_pit(pf, &pf->l4_flex_pit_list, 4122 I40E_FLEX_PIT_IDX_START_L4); 4123 4124 /* We also need to program the L3 and L4 GLQF ORT register */ 4125 i40e_write_rx_ctl(&pf->hw, 4126 I40E_GLQF_ORT(I40E_L3_GLQF_ORT_IDX), 4127 I40E_ORT_PREP_VAL(I40E_FLEX_PIT_IDX_START_L3, 4128 3, 1)); 4129 4130 i40e_write_rx_ctl(&pf->hw, 4131 I40E_GLQF_ORT(I40E_L4_GLQF_ORT_IDX), 4132 I40E_ORT_PREP_VAL(I40E_FLEX_PIT_IDX_START_L4, 4133 3, 1)); 4134} 4135 4136/** 4137 * i40e_flow_str - Converts a flow_type into a human readable string 4138 * @fsp: the flow specification 4139 * 4140 * Currently only flow types we support are included here, and the string 4141 * value attempts to match what ethtool would use to configure this flow type. 4142 **/ 4143static const char *i40e_flow_str(struct ethtool_rx_flow_spec *fsp) 4144{ 4145 switch (fsp->flow_type & ~FLOW_EXT) { 4146 case TCP_V4_FLOW: 4147 return "tcp4"; 4148 case UDP_V4_FLOW: 4149 return "udp4"; 4150 case SCTP_V4_FLOW: 4151 return "sctp4"; 4152 case IP_USER_FLOW: 4153 return "ip4"; 4154 case TCP_V6_FLOW: 4155 return "tcp6"; 4156 case UDP_V6_FLOW: 4157 return "udp6"; 4158 case SCTP_V6_FLOW: 4159 return "sctp6"; 4160 case IPV6_USER_FLOW: 4161 return "ip6"; 4162 default: 4163 return "unknown"; 4164 } 4165} 4166 4167/** 4168 * i40e_pit_index_to_mask - Return the FLEX mask for a given PIT index 4169 * @pit_index: PIT index to convert 4170 * 4171 * Returns the mask for a given PIT index. Will return 0 if the pit_index is 4172 * of range. 4173 **/ 4174static u64 i40e_pit_index_to_mask(int pit_index) 4175{ 4176 switch (pit_index) { 4177 case 0: 4178 return I40E_FLEX_50_MASK; 4179 case 1: 4180 return I40E_FLEX_51_MASK; 4181 case 2: 4182 return I40E_FLEX_52_MASK; 4183 case 3: 4184 return I40E_FLEX_53_MASK; 4185 case 4: 4186 return I40E_FLEX_54_MASK; 4187 case 5: 4188 return I40E_FLEX_55_MASK; 4189 case 6: 4190 return I40E_FLEX_56_MASK; 4191 case 7: 4192 return I40E_FLEX_57_MASK; 4193 default: 4194 return 0; 4195 } 4196} 4197 4198/** 4199 * i40e_print_input_set - Show changes between two input sets 4200 * @vsi: the vsi being configured 4201 * @old: the old input set 4202 * @new: the new input set 4203 * 4204 * Print the difference between old and new input sets by showing which series 4205 * of words are toggled on or off. Only displays the bits we actually support 4206 * changing. 4207 **/ 4208static void i40e_print_input_set(struct i40e_vsi *vsi, u64 old, u64 new) 4209{ 4210 struct i40e_pf *pf = vsi->back; 4211 bool old_value, new_value; 4212 int i; 4213 4214 old_value = !!(old & I40E_L3_SRC_MASK); 4215 new_value = !!(new & I40E_L3_SRC_MASK); 4216 if (old_value != new_value) 4217 netif_info(pf, drv, vsi->netdev, "L3 source address: %s -> %s\n", 4218 old_value ? "ON" : "OFF", 4219 new_value ? "ON" : "OFF"); 4220 4221 old_value = !!(old & I40E_L3_DST_MASK); 4222 new_value = !!(new & I40E_L3_DST_MASK); 4223 if (old_value != new_value) 4224 netif_info(pf, drv, vsi->netdev, "L3 destination address: %s -> %s\n", 4225 old_value ? "ON" : "OFF", 4226 new_value ? "ON" : "OFF"); 4227 4228 old_value = !!(old & I40E_L4_SRC_MASK); 4229 new_value = !!(new & I40E_L4_SRC_MASK); 4230 if (old_value != new_value) 4231 netif_info(pf, drv, vsi->netdev, "L4 source port: %s -> %s\n", 4232 old_value ? "ON" : "OFF", 4233 new_value ? "ON" : "OFF"); 4234 4235 old_value = !!(old & I40E_L4_DST_MASK); 4236 new_value = !!(new & I40E_L4_DST_MASK); 4237 if (old_value != new_value) 4238 netif_info(pf, drv, vsi->netdev, "L4 destination port: %s -> %s\n", 4239 old_value ? "ON" : "OFF", 4240 new_value ? "ON" : "OFF"); 4241 4242 old_value = !!(old & I40E_VERIFY_TAG_MASK); 4243 new_value = !!(new & I40E_VERIFY_TAG_MASK); 4244 if (old_value != new_value) 4245 netif_info(pf, drv, vsi->netdev, "SCTP verification tag: %s -> %s\n", 4246 old_value ? "ON" : "OFF", 4247 new_value ? "ON" : "OFF"); 4248 4249 /* Show change of flexible filter entries */ 4250 for (i = 0; i < I40E_FLEX_INDEX_ENTRIES; i++) { 4251 u64 flex_mask = i40e_pit_index_to_mask(i); 4252 4253 old_value = !!(old & flex_mask); 4254 new_value = !!(new & flex_mask); 4255 if (old_value != new_value) 4256 netif_info(pf, drv, vsi->netdev, "FLEX index %d: %s -> %s\n", 4257 i, 4258 old_value ? "ON" : "OFF", 4259 new_value ? "ON" : "OFF"); 4260 } 4261 4262 netif_info(pf, drv, vsi->netdev, " Current input set: %0llx\n", 4263 old); 4264 netif_info(pf, drv, vsi->netdev, "Requested input set: %0llx\n", 4265 new); 4266} 4267 4268/** 4269 * i40e_check_fdir_input_set - Check that a given rx_flow_spec mask is valid 4270 * @vsi: pointer to the targeted VSI 4271 * @fsp: pointer to Rx flow specification 4272 * @userdef: userdefined data from flow specification 4273 * 4274 * Ensures that a given ethtool_rx_flow_spec has a valid mask. Some support 4275 * for partial matches exists with a few limitations. First, hardware only 4276 * supports masking by word boundary (2 bytes) and not per individual bit. 4277 * Second, hardware is limited to using one mask for a flow type and cannot 4278 * use a separate mask for each filter. 4279 * 4280 * To support these limitations, if we already have a configured filter for 4281 * the specified type, this function enforces that new filters of the type 4282 * match the configured input set. Otherwise, if we do not have a filter of 4283 * the specified type, we allow the input set to be updated to match the 4284 * desired filter. 4285 * 4286 * To help ensure that administrators understand why filters weren't displayed 4287 * as supported, we print a diagnostic message displaying how the input set 4288 * would change and warning to delete the preexisting filters if required. 4289 * 4290 * Returns 0 on successful input set match, and a negative return code on 4291 * failure. 4292 **/ 4293static int i40e_check_fdir_input_set(struct i40e_vsi *vsi, 4294 struct ethtool_rx_flow_spec *fsp, 4295 struct i40e_rx_flow_userdef *userdef) 4296{ 4297 static const __be32 ipv6_full_mask[4] = {cpu_to_be32(0xffffffff), 4298 cpu_to_be32(0xffffffff), cpu_to_be32(0xffffffff), 4299 cpu_to_be32(0xffffffff)}; 4300 struct ethtool_tcpip6_spec *tcp_ip6_spec; 4301 struct ethtool_usrip6_spec *usr_ip6_spec; 4302 struct ethtool_tcpip4_spec *tcp_ip4_spec; 4303 struct ethtool_usrip4_spec *usr_ip4_spec; 4304 struct i40e_pf *pf = vsi->back; 4305 u64 current_mask, new_mask; 4306 bool new_flex_offset = false; 4307 bool flex_l3 = false; 4308 u16 *fdir_filter_count; 4309 u16 index, src_offset = 0; 4310 u8 pit_index = 0; 4311 int err; 4312 4313 switch (fsp->flow_type & ~FLOW_EXT) { 4314 case SCTP_V4_FLOW: 4315 index = LIBIE_FILTER_PCTYPE_NONF_IPV4_SCTP; 4316 fdir_filter_count = &pf->fd_sctp4_filter_cnt; 4317 break; 4318 case TCP_V4_FLOW: 4319 index = LIBIE_FILTER_PCTYPE_NONF_IPV4_TCP; 4320 fdir_filter_count = &pf->fd_tcp4_filter_cnt; 4321 break; 4322 case UDP_V4_FLOW: 4323 index = LIBIE_FILTER_PCTYPE_NONF_IPV4_UDP; 4324 fdir_filter_count = &pf->fd_udp4_filter_cnt; 4325 break; 4326 case SCTP_V6_FLOW: 4327 index = LIBIE_FILTER_PCTYPE_NONF_IPV6_SCTP; 4328 fdir_filter_count = &pf->fd_sctp6_filter_cnt; 4329 break; 4330 case TCP_V6_FLOW: 4331 index = LIBIE_FILTER_PCTYPE_NONF_IPV6_TCP; 4332 fdir_filter_count = &pf->fd_tcp6_filter_cnt; 4333 break; 4334 case UDP_V6_FLOW: 4335 index = LIBIE_FILTER_PCTYPE_NONF_IPV6_UDP; 4336 fdir_filter_count = &pf->fd_udp6_filter_cnt; 4337 break; 4338 case IP_USER_FLOW: 4339 index = LIBIE_FILTER_PCTYPE_NONF_IPV4_OTHER; 4340 fdir_filter_count = &pf->fd_ip4_filter_cnt; 4341 flex_l3 = true; 4342 break; 4343 case IPV6_USER_FLOW: 4344 index = LIBIE_FILTER_PCTYPE_NONF_IPV6_OTHER; 4345 fdir_filter_count = &pf->fd_ip6_filter_cnt; 4346 flex_l3 = true; 4347 break; 4348 default: 4349 return -EOPNOTSUPP; 4350 } 4351 4352 /* Read the current input set from register memory. */ 4353 current_mask = i40e_read_fd_input_set(pf, index); 4354 new_mask = current_mask; 4355 4356 /* Determine, if any, the required changes to the input set in order 4357 * to support the provided mask. 4358 * 4359 * Hardware only supports masking at word (2 byte) granularity and does 4360 * not support full bitwise masking. This implementation simplifies 4361 * even further and only supports fully enabled or fully disabled 4362 * masks for each field, even though we could split the ip4src and 4363 * ip4dst fields. 4364 */ 4365 switch (fsp->flow_type & ~FLOW_EXT) { 4366 case SCTP_V4_FLOW: 4367 new_mask &= ~I40E_VERIFY_TAG_MASK; 4368 fallthrough; 4369 case TCP_V4_FLOW: 4370 case UDP_V4_FLOW: 4371 tcp_ip4_spec = &fsp->m_u.tcp_ip4_spec; 4372 4373 /* IPv4 source address */ 4374 if (tcp_ip4_spec->ip4src == htonl(0xFFFFFFFF)) 4375 new_mask |= I40E_L3_SRC_MASK; 4376 else if (!tcp_ip4_spec->ip4src) 4377 new_mask &= ~I40E_L3_SRC_MASK; 4378 else 4379 return -EOPNOTSUPP; 4380 4381 /* IPv4 destination address */ 4382 if (tcp_ip4_spec->ip4dst == htonl(0xFFFFFFFF)) 4383 new_mask |= I40E_L3_DST_MASK; 4384 else if (!tcp_ip4_spec->ip4dst) 4385 new_mask &= ~I40E_L3_DST_MASK; 4386 else 4387 return -EOPNOTSUPP; 4388 4389 /* L4 source port */ 4390 if (tcp_ip4_spec->psrc == htons(0xFFFF)) 4391 new_mask |= I40E_L4_SRC_MASK; 4392 else if (!tcp_ip4_spec->psrc) 4393 new_mask &= ~I40E_L4_SRC_MASK; 4394 else 4395 return -EOPNOTSUPP; 4396 4397 /* L4 destination port */ 4398 if (tcp_ip4_spec->pdst == htons(0xFFFF)) 4399 new_mask |= I40E_L4_DST_MASK; 4400 else if (!tcp_ip4_spec->pdst) 4401 new_mask &= ~I40E_L4_DST_MASK; 4402 else 4403 return -EOPNOTSUPP; 4404 4405 /* Filtering on Type of Service is not supported. */ 4406 if (tcp_ip4_spec->tos) 4407 return -EOPNOTSUPP; 4408 4409 break; 4410 case SCTP_V6_FLOW: 4411 new_mask &= ~I40E_VERIFY_TAG_MASK; 4412 fallthrough; 4413 case TCP_V6_FLOW: 4414 case UDP_V6_FLOW: 4415 tcp_ip6_spec = &fsp->m_u.tcp_ip6_spec; 4416 4417 /* Check if user provided IPv6 source address. */ 4418 if (ipv6_addr_equal((struct in6_addr *)&tcp_ip6_spec->ip6src, 4419 (struct in6_addr *)&ipv6_full_mask)) 4420 new_mask |= I40E_L3_V6_SRC_MASK; 4421 else if (ipv6_addr_any((struct in6_addr *) 4422 &tcp_ip6_spec->ip6src)) 4423 new_mask &= ~I40E_L3_V6_SRC_MASK; 4424 else 4425 return -EOPNOTSUPP; 4426 4427 /* Check if user provided destination address. */ 4428 if (ipv6_addr_equal((struct in6_addr *)&tcp_ip6_spec->ip6dst, 4429 (struct in6_addr *)&ipv6_full_mask)) 4430 new_mask |= I40E_L3_V6_DST_MASK; 4431 else if (ipv6_addr_any((struct in6_addr *) 4432 &tcp_ip6_spec->ip6dst)) 4433 new_mask &= ~I40E_L3_V6_DST_MASK; 4434 else 4435 return -EOPNOTSUPP; 4436 4437 /* L4 source port */ 4438 if (tcp_ip6_spec->psrc == htons(0xFFFF)) 4439 new_mask |= I40E_L4_SRC_MASK; 4440 else if (!tcp_ip6_spec->psrc) 4441 new_mask &= ~I40E_L4_SRC_MASK; 4442 else 4443 return -EOPNOTSUPP; 4444 4445 /* L4 destination port */ 4446 if (tcp_ip6_spec->pdst == htons(0xFFFF)) 4447 new_mask |= I40E_L4_DST_MASK; 4448 else if (!tcp_ip6_spec->pdst) 4449 new_mask &= ~I40E_L4_DST_MASK; 4450 else 4451 return -EOPNOTSUPP; 4452 4453 /* Filtering on Traffic Classes is not supported. */ 4454 if (tcp_ip6_spec->tclass) 4455 return -EOPNOTSUPP; 4456 break; 4457 case IP_USER_FLOW: 4458 usr_ip4_spec = &fsp->m_u.usr_ip4_spec; 4459 4460 /* IPv4 source address */ 4461 if (usr_ip4_spec->ip4src == htonl(0xFFFFFFFF)) 4462 new_mask |= I40E_L3_SRC_MASK; 4463 else if (!usr_ip4_spec->ip4src) 4464 new_mask &= ~I40E_L3_SRC_MASK; 4465 else 4466 return -EOPNOTSUPP; 4467 4468 /* IPv4 destination address */ 4469 if (usr_ip4_spec->ip4dst == htonl(0xFFFFFFFF)) 4470 new_mask |= I40E_L3_DST_MASK; 4471 else if (!usr_ip4_spec->ip4dst) 4472 new_mask &= ~I40E_L3_DST_MASK; 4473 else 4474 return -EOPNOTSUPP; 4475 4476 /* First 4 bytes of L4 header */ 4477 if (usr_ip4_spec->l4_4_bytes) 4478 return -EOPNOTSUPP; 4479 4480 /* Filtering on Type of Service is not supported. */ 4481 if (usr_ip4_spec->tos) 4482 return -EOPNOTSUPP; 4483 4484 /* Filtering on IP version is not supported */ 4485 if (usr_ip4_spec->ip_ver) 4486 return -EINVAL; 4487 4488 /* Filtering on L4 protocol is not supported */ 4489 if (usr_ip4_spec->proto) 4490 return -EINVAL; 4491 4492 break; 4493 case IPV6_USER_FLOW: 4494 usr_ip6_spec = &fsp->m_u.usr_ip6_spec; 4495 4496 /* Check if user provided IPv6 source address. */ 4497 if (ipv6_addr_equal((struct in6_addr *)&usr_ip6_spec->ip6src, 4498 (struct in6_addr *)&ipv6_full_mask)) 4499 new_mask |= I40E_L3_V6_SRC_MASK; 4500 else if (ipv6_addr_any((struct in6_addr *) 4501 &usr_ip6_spec->ip6src)) 4502 new_mask &= ~I40E_L3_V6_SRC_MASK; 4503 else 4504 return -EOPNOTSUPP; 4505 4506 /* Check if user provided destination address. */ 4507 if (ipv6_addr_equal((struct in6_addr *)&usr_ip6_spec->ip6dst, 4508 (struct in6_addr *)&ipv6_full_mask)) 4509 new_mask |= I40E_L3_V6_DST_MASK; 4510 else if (ipv6_addr_any((struct in6_addr *) 4511 &usr_ip6_spec->ip6dst)) 4512 new_mask &= ~I40E_L3_V6_DST_MASK; 4513 else 4514 return -EOPNOTSUPP; 4515 4516 if (usr_ip6_spec->l4_4_bytes) 4517 return -EOPNOTSUPP; 4518 4519 /* Filtering on Traffic class is not supported. */ 4520 if (usr_ip6_spec->tclass) 4521 return -EOPNOTSUPP; 4522 4523 /* Filtering on L4 protocol is not supported */ 4524 if (usr_ip6_spec->l4_proto) 4525 return -EINVAL; 4526 4527 break; 4528 default: 4529 return -EOPNOTSUPP; 4530 } 4531 4532 if (fsp->flow_type & FLOW_EXT) { 4533 /* Allow only 802.1Q and no etype defined, as 4534 * later it's modified to 0x8100 4535 */ 4536 if (fsp->h_ext.vlan_etype != htons(ETH_P_8021Q) && 4537 fsp->h_ext.vlan_etype != 0) 4538 return -EOPNOTSUPP; 4539 if (fsp->m_ext.vlan_tci == htons(0xFFFF)) 4540 new_mask |= I40E_VLAN_SRC_MASK; 4541 else 4542 new_mask &= ~I40E_VLAN_SRC_MASK; 4543 } 4544 4545 /* First, clear all flexible filter entries */ 4546 new_mask &= ~I40E_FLEX_INPUT_MASK; 4547 4548 /* If we have a flexible filter, try to add this offset to the correct 4549 * flexible filter PIT list. Once finished, we can update the mask. 4550 * If the src_offset changed, we will get a new mask value which will 4551 * trigger an input set change. 4552 */ 4553 if (userdef->flex_filter) { 4554 struct i40e_flex_pit *l3_flex_pit = NULL, *flex_pit = NULL; 4555 4556 /* Flexible offset must be even, since the flexible payload 4557 * must be aligned on 2-byte boundary. 4558 */ 4559 if (userdef->flex_offset & 0x1) { 4560 dev_warn(&pf->pdev->dev, 4561 "Flexible data offset must be 2-byte aligned\n"); 4562 return -EINVAL; 4563 } 4564 4565 src_offset = userdef->flex_offset >> 1; 4566 4567 /* FLX_PIT source offset value is only so large */ 4568 if (src_offset > I40E_MAX_FLEX_SRC_OFFSET) { 4569 dev_warn(&pf->pdev->dev, 4570 "Flexible data must reside within first 64 bytes of the packet payload\n"); 4571 return -EINVAL; 4572 } 4573 4574 /* See if this offset has already been programmed. If we get 4575 * an ERR_PTR, then the filter is not safe to add. Otherwise, 4576 * if we get a NULL pointer, this means we will need to add 4577 * the offset. 4578 */ 4579 flex_pit = i40e_find_flex_offset(&pf->l4_flex_pit_list, 4580 src_offset); 4581 if (IS_ERR(flex_pit)) 4582 return PTR_ERR(flex_pit); 4583 4584 /* IP_USER_FLOW filters match both L4 (ICMP) and L3 (unknown) 4585 * packet types, and thus we need to program both L3 and L4 4586 * flexible values. These must have identical flexible index, 4587 * as otherwise we can't correctly program the input set. So 4588 * we'll find both an L3 and L4 index and make sure they are 4589 * the same. 4590 */ 4591 if (flex_l3) { 4592 l3_flex_pit = 4593 i40e_find_flex_offset(&pf->l3_flex_pit_list, 4594 src_offset); 4595 if (IS_ERR(l3_flex_pit)) 4596 return PTR_ERR(l3_flex_pit); 4597 4598 if (flex_pit) { 4599 /* If we already had a matching L4 entry, we 4600 * need to make sure that the L3 entry we 4601 * obtained uses the same index. 4602 */ 4603 if (l3_flex_pit) { 4604 if (l3_flex_pit->pit_index != 4605 flex_pit->pit_index) { 4606 return -EINVAL; 4607 } 4608 } else { 4609 new_flex_offset = true; 4610 } 4611 } else { 4612 flex_pit = l3_flex_pit; 4613 } 4614 } 4615 4616 /* If we didn't find an existing flex offset, we need to 4617 * program a new one. However, we don't immediately program it 4618 * here because we will wait to program until after we check 4619 * that it is safe to change the input set. 4620 */ 4621 if (!flex_pit) { 4622 new_flex_offset = true; 4623 pit_index = i40e_unused_pit_index(pf); 4624 } else { 4625 pit_index = flex_pit->pit_index; 4626 } 4627 4628 /* Update the mask with the new offset */ 4629 new_mask |= i40e_pit_index_to_mask(pit_index); 4630 } 4631 4632 /* If the mask and flexible filter offsets for this filter match the 4633 * currently programmed values we don't need any input set change, so 4634 * this filter is safe to install. 4635 */ 4636 if (new_mask == current_mask && !new_flex_offset) 4637 return 0; 4638 4639 netif_info(pf, drv, vsi->netdev, "Input set change requested for %s flows:\n", 4640 i40e_flow_str(fsp)); 4641 i40e_print_input_set(vsi, current_mask, new_mask); 4642 if (new_flex_offset) { 4643 netif_info(pf, drv, vsi->netdev, "FLEX index %d: Offset -> %d", 4644 pit_index, src_offset); 4645 } 4646 4647 /* Hardware input sets are global across multiple ports, so even the 4648 * main port cannot change them when in MFP mode as this would impact 4649 * any filters on the other ports. 4650 */ 4651 if (test_bit(I40E_FLAG_MFP_ENA, pf->flags)) { 4652 netif_err(pf, drv, vsi->netdev, "Cannot change Flow Director input sets while MFP is enabled\n"); 4653 return -EOPNOTSUPP; 4654 } 4655 4656 /* This filter requires us to update the input set. However, hardware 4657 * only supports one input set per flow type, and does not support 4658 * separate masks for each filter. This means that we can only support 4659 * a single mask for all filters of a specific type. 4660 * 4661 * If we have preexisting filters, they obviously depend on the 4662 * current programmed input set. Display a diagnostic message in this 4663 * case explaining why the filter could not be accepted. 4664 */ 4665 if (*fdir_filter_count) { 4666 netif_err(pf, drv, vsi->netdev, "Cannot change input set for %s flows until %d preexisting filters are removed\n", 4667 i40e_flow_str(fsp), 4668 *fdir_filter_count); 4669 return -EOPNOTSUPP; 4670 } 4671 4672 i40e_write_fd_input_set(pf, index, new_mask); 4673 4674 /* IP_USER_FLOW filters match both IPv4/Other and IPv4/Fragmented 4675 * frames. If we're programming the input set for IPv4/Other, we also 4676 * need to program the IPv4/Fragmented input set. Since we don't have 4677 * separate support, we'll always assume and enforce that the two flow 4678 * types must have matching input sets. 4679 */ 4680 if (index == LIBIE_FILTER_PCTYPE_NONF_IPV4_OTHER) 4681 i40e_write_fd_input_set(pf, LIBIE_FILTER_PCTYPE_FRAG_IPV4, 4682 new_mask); 4683 4684 /* Add the new offset and update table, if necessary */ 4685 if (new_flex_offset) { 4686 err = i40e_add_flex_offset(&pf->l4_flex_pit_list, src_offset, 4687 pit_index); 4688 if (err) 4689 return err; 4690 4691 if (flex_l3) { 4692 err = i40e_add_flex_offset(&pf->l3_flex_pit_list, 4693 src_offset, 4694 pit_index); 4695 if (err) 4696 return err; 4697 } 4698 4699 i40e_reprogram_flex_pit(pf); 4700 } 4701 4702 return 0; 4703} 4704 4705/** 4706 * i40e_match_fdir_filter - Return true of two filters match 4707 * @a: pointer to filter struct 4708 * @b: pointer to filter struct 4709 * 4710 * Returns true if the two filters match exactly the same criteria. I.e. they 4711 * match the same flow type and have the same parameters. We don't need to 4712 * check any input-set since all filters of the same flow type must use the 4713 * same input set. 4714 **/ 4715static bool i40e_match_fdir_filter(struct i40e_fdir_filter *a, 4716 struct i40e_fdir_filter *b) 4717{ 4718 /* The filters do not much if any of these criteria differ. */ 4719 if (a->dst_ip != b->dst_ip || 4720 a->src_ip != b->src_ip || 4721 a->dst_port != b->dst_port || 4722 a->src_port != b->src_port || 4723 a->flow_type != b->flow_type || 4724 a->ipl4_proto != b->ipl4_proto || 4725 a->vlan_tag != b->vlan_tag || 4726 a->vlan_etype != b->vlan_etype) 4727 return false; 4728 4729 return true; 4730} 4731 4732/** 4733 * i40e_disallow_matching_filters - Check that new filters differ 4734 * @vsi: pointer to the targeted VSI 4735 * @input: new filter to check 4736 * 4737 * Due to hardware limitations, it is not possible for two filters that match 4738 * similar criteria to be programmed at the same time. This is true for a few 4739 * reasons: 4740 * 4741 * (a) all filters matching a particular flow type must use the same input 4742 * set, that is they must match the same criteria. 4743 * (b) different flow types will never match the same packet, as the flow type 4744 * is decided by hardware before checking which rules apply. 4745 * (c) hardware has no way to distinguish which order filters apply in. 4746 * 4747 * Due to this, we can't really support using the location data to order 4748 * filters in the hardware parsing. It is technically possible for the user to 4749 * request two filters matching the same criteria but which select different 4750 * queues. In this case, rather than keep both filters in the list, we reject 4751 * the 2nd filter when the user requests adding it. 4752 * 4753 * This avoids needing to track location for programming the filter to 4754 * hardware, and ensures that we avoid some strange scenarios involving 4755 * deleting filters which match the same criteria. 4756 **/ 4757static int i40e_disallow_matching_filters(struct i40e_vsi *vsi, 4758 struct i40e_fdir_filter *input) 4759{ 4760 struct i40e_pf *pf = vsi->back; 4761 struct i40e_fdir_filter *rule; 4762 struct hlist_node *node2; 4763 4764 /* Loop through every filter, and check that it doesn't match */ 4765 hlist_for_each_entry_safe(rule, node2, 4766 &pf->fdir_filter_list, fdir_node) { 4767 /* Don't check the filters match if they share the same fd_id, 4768 * since the new filter is actually just updating the target 4769 * of the old filter. 4770 */ 4771 if (rule->fd_id == input->fd_id) 4772 continue; 4773 4774 /* If any filters match, then print a warning message to the 4775 * kernel message buffer and bail out. 4776 */ 4777 if (i40e_match_fdir_filter(rule, input)) { 4778 dev_warn(&pf->pdev->dev, 4779 "Existing user defined filter %d already matches this flow.\n", 4780 rule->fd_id); 4781 return -EINVAL; 4782 } 4783 } 4784 4785 return 0; 4786} 4787 4788/** 4789 * i40e_add_fdir_ethtool - Add/Remove Flow Director filters 4790 * @vsi: pointer to the targeted VSI 4791 * @cmd: command to get or set RX flow classification rules 4792 * 4793 * Add Flow Director filters for a specific flow spec based on their 4794 * protocol. Returns 0 if the filters were successfully added. 4795 **/ 4796static int i40e_add_fdir_ethtool(struct i40e_vsi *vsi, 4797 struct ethtool_rxnfc *cmd) 4798{ 4799 struct i40e_rx_flow_userdef userdef; 4800 struct ethtool_rx_flow_spec *fsp; 4801 struct i40e_fdir_filter *input; 4802 u16 dest_vsi = 0, q_index = 0; 4803 struct i40e_pf *pf; 4804 int ret = -EINVAL; 4805 u8 dest_ctl; 4806 4807 if (!vsi) 4808 return -EINVAL; 4809 pf = vsi->back; 4810 4811 if (!test_bit(I40E_FLAG_FD_SB_ENA, pf->flags)) 4812 return -EOPNOTSUPP; 4813 4814 if (test_bit(__I40E_FD_SB_AUTO_DISABLED, pf->state)) 4815 return -ENOSPC; 4816 4817 if (test_bit(__I40E_RESET_RECOVERY_PENDING, pf->state) || 4818 test_bit(__I40E_RESET_INTR_RECEIVED, pf->state)) 4819 return -EBUSY; 4820 4821 if (test_bit(__I40E_FD_FLUSH_REQUESTED, pf->state)) 4822 return -EBUSY; 4823 4824 fsp = (struct ethtool_rx_flow_spec *)&cmd->fs; 4825 4826 /* Parse the user-defined field */ 4827 if (i40e_parse_rx_flow_user_data(fsp, &userdef)) 4828 return -EINVAL; 4829 4830 /* Extended MAC field is not supported */ 4831 if (fsp->flow_type & FLOW_MAC_EXT) 4832 return -EINVAL; 4833 4834 ret = i40e_check_fdir_input_set(vsi, fsp, &userdef); 4835 if (ret) 4836 return ret; 4837 4838 if (fsp->location >= (pf->hw.func_caps.fd_filters_best_effort + 4839 pf->hw.func_caps.fd_filters_guaranteed)) { 4840 return -EINVAL; 4841 } 4842 4843 /* ring_cookie is either the drop index, or is a mask of the queue 4844 * index and VF id we wish to target. 4845 */ 4846 if (fsp->ring_cookie == RX_CLS_FLOW_DISC) { 4847 dest_ctl = I40E_FILTER_PROGRAM_DESC_DEST_DROP_PACKET; 4848 } else { 4849 u32 ring = ethtool_get_flow_spec_ring(fsp->ring_cookie); 4850 u8 vf = ethtool_get_flow_spec_ring_vf(fsp->ring_cookie); 4851 4852 if (!vf) { 4853 if (ring >= vsi->num_queue_pairs) 4854 return -EINVAL; 4855 dest_vsi = vsi->id; 4856 } else { 4857 /* VFs are zero-indexed, so we subtract one here */ 4858 vf--; 4859 4860 if (vf >= pf->num_alloc_vfs) 4861 return -EINVAL; 4862 if (ring >= pf->vf[vf].num_queue_pairs) 4863 return -EINVAL; 4864 dest_vsi = pf->vf[vf].lan_vsi_id; 4865 } 4866 dest_ctl = I40E_FILTER_PROGRAM_DESC_DEST_DIRECT_PACKET_QINDEX; 4867 q_index = ring; 4868 } 4869 4870 input = kzalloc(sizeof(*input), GFP_KERNEL); 4871 4872 if (!input) 4873 return -ENOMEM; 4874 4875 input->fd_id = fsp->location; 4876 input->q_index = q_index; 4877 input->dest_vsi = dest_vsi; 4878 input->dest_ctl = dest_ctl; 4879 input->fd_status = I40E_FILTER_PROGRAM_DESC_FD_STATUS_FD_ID; 4880 input->cnt_index = I40E_FD_SB_STAT_IDX(pf->hw.pf_id); 4881 input->dst_ip = fsp->h_u.tcp_ip4_spec.ip4src; 4882 input->src_ip = fsp->h_u.tcp_ip4_spec.ip4dst; 4883 input->flow_type = fsp->flow_type & ~FLOW_EXT; 4884 4885 input->vlan_etype = fsp->h_ext.vlan_etype; 4886 if (!fsp->m_ext.vlan_etype && fsp->h_ext.vlan_tci) 4887 input->vlan_etype = cpu_to_be16(ETH_P_8021Q); 4888 if (fsp->m_ext.vlan_tci && input->vlan_etype) 4889 input->vlan_tag = fsp->h_ext.vlan_tci; 4890 if (input->flow_type == IPV6_USER_FLOW || 4891 input->flow_type == UDP_V6_FLOW || 4892 input->flow_type == TCP_V6_FLOW || 4893 input->flow_type == SCTP_V6_FLOW) { 4894 /* Reverse the src and dest notion, since the HW expects them 4895 * to be from Tx perspective where as the input from user is 4896 * from Rx filter view. 4897 */ 4898 input->ipl4_proto = fsp->h_u.usr_ip6_spec.l4_proto; 4899 input->dst_port = fsp->h_u.tcp_ip6_spec.psrc; 4900 input->src_port = fsp->h_u.tcp_ip6_spec.pdst; 4901 memcpy(input->dst_ip6, fsp->h_u.ah_ip6_spec.ip6src, 4902 sizeof(__be32) * 4); 4903 memcpy(input->src_ip6, fsp->h_u.ah_ip6_spec.ip6dst, 4904 sizeof(__be32) * 4); 4905 } else { 4906 /* Reverse the src and dest notion, since the HW expects them 4907 * to be from Tx perspective where as the input from user is 4908 * from Rx filter view. 4909 */ 4910 input->ipl4_proto = fsp->h_u.usr_ip4_spec.proto; 4911 input->dst_port = fsp->h_u.tcp_ip4_spec.psrc; 4912 input->src_port = fsp->h_u.tcp_ip4_spec.pdst; 4913 input->dst_ip = fsp->h_u.tcp_ip4_spec.ip4src; 4914 input->src_ip = fsp->h_u.tcp_ip4_spec.ip4dst; 4915 } 4916 4917 if (userdef.flex_filter) { 4918 input->flex_filter = true; 4919 input->flex_word = cpu_to_be16(userdef.flex_word); 4920 input->flex_offset = userdef.flex_offset; 4921 } 4922 4923 /* Avoid programming two filters with identical match criteria. */ 4924 ret = i40e_disallow_matching_filters(vsi, input); 4925 if (ret) 4926 goto free_filter_memory; 4927 4928 /* Add the input filter to the fdir_input_list, possibly replacing 4929 * a previous filter. Do not free the input structure after adding it 4930 * to the list as this would cause a use-after-free bug. 4931 */ 4932 i40e_update_ethtool_fdir_entry(vsi, input, fsp->location, NULL); 4933 ret = i40e_add_del_fdir(vsi, input, true); 4934 if (ret) 4935 goto remove_sw_rule; 4936 return 0; 4937 4938remove_sw_rule: 4939 hlist_del(&input->fdir_node); 4940 pf->fdir_pf_active_filters--; 4941free_filter_memory: 4942 kfree(input); 4943 return ret; 4944} 4945 4946/** 4947 * i40e_set_rxnfc - command to set RX flow classification rules 4948 * @netdev: network interface device structure 4949 * @cmd: ethtool rxnfc command 4950 * 4951 * Returns Success if the command is supported. 4952 **/ 4953static int i40e_set_rxnfc(struct net_device *netdev, struct ethtool_rxnfc *cmd) 4954{ 4955 struct i40e_netdev_priv *np = netdev_priv(netdev); 4956 struct i40e_vsi *vsi = np->vsi; 4957 int ret = -EOPNOTSUPP; 4958 4959 switch (cmd->cmd) { 4960 case ETHTOOL_SRXCLSRLINS: 4961 ret = i40e_add_fdir_ethtool(vsi, cmd); 4962 break; 4963 case ETHTOOL_SRXCLSRLDEL: 4964 ret = i40e_del_fdir_entry(vsi, cmd); 4965 break; 4966 default: 4967 break; 4968 } 4969 4970 return ret; 4971} 4972 4973/** 4974 * i40e_max_channels - get Max number of combined channels supported 4975 * @vsi: vsi pointer 4976 **/ 4977static unsigned int i40e_max_channels(struct i40e_vsi *vsi) 4978{ 4979 /* TODO: This code assumes DCB and FD is disabled for now. */ 4980 return vsi->alloc_queue_pairs; 4981} 4982 4983/** 4984 * i40e_get_channels - Get the current channels enabled and max supported etc. 4985 * @dev: network interface device structure 4986 * @ch: ethtool channels structure 4987 * 4988 * We don't support separate tx and rx queues as channels. The other count 4989 * represents how many queues are being used for control. max_combined counts 4990 * how many queue pairs we can support. They may not be mapped 1 to 1 with 4991 * q_vectors since we support a lot more queue pairs than q_vectors. 4992 **/ 4993static void i40e_get_channels(struct net_device *dev, 4994 struct ethtool_channels *ch) 4995{ 4996 struct i40e_netdev_priv *np = netdev_priv(dev); 4997 struct i40e_vsi *vsi = np->vsi; 4998 struct i40e_pf *pf = vsi->back; 4999 5000 /* report maximum channels */ 5001 ch->max_combined = i40e_max_channels(vsi); 5002 5003 /* report info for other vector */ 5004 ch->other_count = test_bit(I40E_FLAG_FD_SB_ENA, pf->flags) ? 1 : 0; 5005 ch->max_other = ch->other_count; 5006 5007 /* Note: This code assumes DCB is disabled for now. */ 5008 ch->combined_count = vsi->num_queue_pairs; 5009} 5010 5011/** 5012 * i40e_set_channels - Set the new channels count. 5013 * @dev: network interface device structure 5014 * @ch: ethtool channels structure 5015 * 5016 * The new channels count may not be the same as requested by the user 5017 * since it gets rounded down to a power of 2 value. 5018 **/ 5019static int i40e_set_channels(struct net_device *dev, 5020 struct ethtool_channels *ch) 5021{ 5022 const u8 drop = I40E_FILTER_PROGRAM_DESC_DEST_DROP_PACKET; 5023 struct i40e_netdev_priv *np = netdev_priv(dev); 5024 unsigned int count = ch->combined_count; 5025 struct i40e_vsi *vsi = np->vsi; 5026 struct i40e_pf *pf = vsi->back; 5027 struct i40e_fdir_filter *rule; 5028 struct hlist_node *node2; 5029 int new_count; 5030 int err = 0; 5031 5032 /* We do not support setting channels for any other VSI at present */ 5033 if (vsi->type != I40E_VSI_MAIN) 5034 return -EINVAL; 5035 5036 /* We do not support setting channels via ethtool when TCs are 5037 * configured through mqprio 5038 */ 5039 if (i40e_is_tc_mqprio_enabled(pf)) 5040 return -EINVAL; 5041 5042 /* verify they are not requesting separate vectors */ 5043 if (!count || ch->rx_count || ch->tx_count) 5044 return -EINVAL; 5045 5046 /* verify other_count has not changed */ 5047 if (ch->other_count != (test_bit(I40E_FLAG_FD_SB_ENA, pf->flags) ? 1 : 0)) 5048 return -EINVAL; 5049 5050 /* verify the number of channels does not exceed hardware limits */ 5051 if (count > i40e_max_channels(vsi)) 5052 return -EINVAL; 5053 5054 /* verify that the number of channels does not invalidate any current 5055 * flow director rules 5056 */ 5057 hlist_for_each_entry_safe(rule, node2, 5058 &pf->fdir_filter_list, fdir_node) { 5059 if (rule->dest_ctl != drop && count <= rule->q_index) { 5060 dev_warn(&pf->pdev->dev, 5061 "Existing user defined filter %d assigns flow to queue %d\n", 5062 rule->fd_id, rule->q_index); 5063 err = -EINVAL; 5064 } 5065 } 5066 5067 if (err) { 5068 dev_err(&pf->pdev->dev, 5069 "Existing filter rules must be deleted to reduce combined channel count to %d\n", 5070 count); 5071 return err; 5072 } 5073 5074 /* update feature limits from largest to smallest supported values */ 5075 /* TODO: Flow director limit, DCB etc */ 5076 5077 /* use rss_reconfig to rebuild with new queue count and update traffic 5078 * class queue mapping 5079 */ 5080 new_count = i40e_reconfig_rss_queues(pf, count); 5081 if (new_count > 0) 5082 return 0; 5083 else 5084 return -EINVAL; 5085} 5086 5087/** 5088 * i40e_get_rxfh_key_size - get the RSS hash key size 5089 * @netdev: network interface device structure 5090 * 5091 * Returns the table size. 5092 **/ 5093static u32 i40e_get_rxfh_key_size(struct net_device *netdev) 5094{ 5095 return I40E_HKEY_ARRAY_SIZE; 5096} 5097 5098/** 5099 * i40e_get_rxfh_indir_size - get the rx flow hash indirection table size 5100 * @netdev: network interface device structure 5101 * 5102 * Returns the table size. 5103 **/ 5104static u32 i40e_get_rxfh_indir_size(struct net_device *netdev) 5105{ 5106 return I40E_HLUT_ARRAY_SIZE; 5107} 5108 5109/** 5110 * i40e_get_rxfh - get the rx flow hash indirection table 5111 * @netdev: network interface device structure 5112 * @rxfh: pointer to param struct (indir, key, hfunc) 5113 * 5114 * Reads the indirection table directly from the hardware. Returns 0 on 5115 * success. 5116 **/ 5117static int i40e_get_rxfh(struct net_device *netdev, 5118 struct ethtool_rxfh_param *rxfh) 5119{ 5120 struct i40e_netdev_priv *np = netdev_priv(netdev); 5121 struct i40e_vsi *vsi = np->vsi; 5122 u8 *lut, *seed = NULL; 5123 int ret; 5124 u16 i; 5125 5126 rxfh->hfunc = ETH_RSS_HASH_TOP; 5127 5128 if (!rxfh->indir) 5129 return 0; 5130 5131 seed = rxfh->key; 5132 lut = kzalloc(I40E_HLUT_ARRAY_SIZE, GFP_KERNEL); 5133 if (!lut) 5134 return -ENOMEM; 5135 ret = i40e_get_rss(vsi, seed, lut, I40E_HLUT_ARRAY_SIZE); 5136 if (ret) 5137 goto out; 5138 for (i = 0; i < I40E_HLUT_ARRAY_SIZE; i++) 5139 rxfh->indir[i] = (u32)(lut[i]); 5140 5141out: 5142 kfree(lut); 5143 5144 return ret; 5145} 5146 5147/** 5148 * i40e_set_rxfh - set the rx flow hash indirection table 5149 * @netdev: network interface device structure 5150 * @rxfh: pointer to param struct (indir, key, hfunc) 5151 * @extack: extended ACK from the Netlink message 5152 * 5153 * Returns -EINVAL if the table specifies an invalid queue id, otherwise 5154 * returns 0 after programming the table. 5155 **/ 5156static int i40e_set_rxfh(struct net_device *netdev, 5157 struct ethtool_rxfh_param *rxfh, 5158 struct netlink_ext_ack *extack) 5159{ 5160 struct i40e_netdev_priv *np = netdev_priv(netdev); 5161 struct i40e_vsi *vsi = np->vsi; 5162 struct i40e_pf *pf = vsi->back; 5163 u8 *seed = NULL; 5164 u16 i; 5165 5166 if (rxfh->hfunc != ETH_RSS_HASH_NO_CHANGE && 5167 rxfh->hfunc != ETH_RSS_HASH_TOP) 5168 return -EOPNOTSUPP; 5169 5170 if (rxfh->key) { 5171 if (!vsi->rss_hkey_user) { 5172 vsi->rss_hkey_user = kzalloc(I40E_HKEY_ARRAY_SIZE, 5173 GFP_KERNEL); 5174 if (!vsi->rss_hkey_user) 5175 return -ENOMEM; 5176 } 5177 memcpy(vsi->rss_hkey_user, rxfh->key, I40E_HKEY_ARRAY_SIZE); 5178 seed = vsi->rss_hkey_user; 5179 } 5180 if (!vsi->rss_lut_user) { 5181 vsi->rss_lut_user = kzalloc(I40E_HLUT_ARRAY_SIZE, GFP_KERNEL); 5182 if (!vsi->rss_lut_user) 5183 return -ENOMEM; 5184 } 5185 5186 /* Each 32 bits pointed by 'indir' is stored with a lut entry */ 5187 if (rxfh->indir) 5188 for (i = 0; i < I40E_HLUT_ARRAY_SIZE; i++) 5189 vsi->rss_lut_user[i] = (u8)(rxfh->indir[i]); 5190 else 5191 i40e_fill_rss_lut(pf, vsi->rss_lut_user, I40E_HLUT_ARRAY_SIZE, 5192 vsi->rss_size); 5193 5194 return i40e_config_rss(vsi, seed, vsi->rss_lut_user, 5195 I40E_HLUT_ARRAY_SIZE); 5196} 5197 5198/** 5199 * i40e_get_priv_flags - report device private flags 5200 * @dev: network interface device structure 5201 * 5202 * The get string set count and the string set should be matched for each 5203 * flag returned. Add new strings for each flag to the i40e_gstrings_priv_flags 5204 * array. 5205 * 5206 * Returns a u32 bitmap of flags. 5207 **/ 5208static u32 i40e_get_priv_flags(struct net_device *dev) 5209{ 5210 struct i40e_netdev_priv *np = netdev_priv(dev); 5211 struct i40e_vsi *vsi = np->vsi; 5212 struct i40e_pf *pf = vsi->back; 5213 u32 i, j, ret_flags = 0; 5214 5215 for (i = 0; i < I40E_PRIV_FLAGS_STR_LEN; i++) { 5216 const struct i40e_priv_flags *priv_flag; 5217 5218 priv_flag = &i40e_gstrings_priv_flags[i]; 5219 5220 if (test_bit(priv_flag->bitno, pf->flags)) 5221 ret_flags |= BIT(i); 5222 } 5223 5224 if (pf->hw.pf_id != 0) 5225 return ret_flags; 5226 5227 for (j = 0; j < I40E_GL_PRIV_FLAGS_STR_LEN; j++) { 5228 const struct i40e_priv_flags *priv_flag; 5229 5230 priv_flag = &i40e_gl_gstrings_priv_flags[j]; 5231 5232 if (test_bit(priv_flag->bitno, pf->flags)) 5233 ret_flags |= BIT(i + j); 5234 } 5235 5236 return ret_flags; 5237} 5238 5239/** 5240 * i40e_set_priv_flags - set private flags 5241 * @dev: network interface device structure 5242 * @flags: bit flags to be set 5243 **/ 5244static int i40e_set_priv_flags(struct net_device *dev, u32 flags) 5245{ 5246 DECLARE_BITMAP(changed_flags, I40E_PF_FLAGS_NBITS); 5247 DECLARE_BITMAP(orig_flags, I40E_PF_FLAGS_NBITS); 5248 DECLARE_BITMAP(new_flags, I40E_PF_FLAGS_NBITS); 5249 struct i40e_netdev_priv *np = netdev_priv(dev); 5250 struct i40e_vsi *vsi = np->vsi; 5251 struct i40e_pf *pf = vsi->back; 5252 enum libie_aq_err adq_err; 5253 u32 reset_needed = 0; 5254 int status; 5255 u32 i, j; 5256 5257 bitmap_copy(orig_flags, pf->flags, I40E_PF_FLAGS_NBITS); 5258 bitmap_copy(new_flags, pf->flags, I40E_PF_FLAGS_NBITS); 5259 5260 for (i = 0; i < I40E_PRIV_FLAGS_STR_LEN; i++) { 5261 const struct i40e_priv_flags *priv_flag; 5262 bool new_val; 5263 5264 priv_flag = &i40e_gstrings_priv_flags[i]; 5265 new_val = (flags & BIT(i)) ? true : false; 5266 5267 /* If this is a read-only flag, it can't be changed */ 5268 if (priv_flag->read_only && 5269 test_bit(priv_flag->bitno, orig_flags) != new_val) 5270 return -EOPNOTSUPP; 5271 5272 if (new_val) 5273 set_bit(priv_flag->bitno, new_flags); 5274 else 5275 clear_bit(priv_flag->bitno, new_flags); 5276 } 5277 5278 if (pf->hw.pf_id != 0) 5279 goto flags_complete; 5280 5281 for (j = 0; j < I40E_GL_PRIV_FLAGS_STR_LEN; j++) { 5282 const struct i40e_priv_flags *priv_flag; 5283 bool new_val; 5284 5285 priv_flag = &i40e_gl_gstrings_priv_flags[j]; 5286 new_val = (flags & BIT(i + j)) ? true : false; 5287 5288 /* If this is a read-only flag, it can't be changed */ 5289 if (priv_flag->read_only && 5290 test_bit(priv_flag->bitno, orig_flags) != new_val) 5291 return -EOPNOTSUPP; 5292 5293 if (new_val) 5294 set_bit(priv_flag->bitno, new_flags); 5295 else 5296 clear_bit(priv_flag->bitno, new_flags); 5297 } 5298 5299flags_complete: 5300 bitmap_xor(changed_flags, new_flags, orig_flags, I40E_PF_FLAGS_NBITS); 5301 5302 if (test_bit(I40E_FLAG_FW_LLDP_DIS, changed_flags)) 5303 reset_needed = I40E_PF_RESET_AND_REBUILD_FLAG; 5304 5305 if (test_bit(I40E_FLAG_VEB_STATS_ENA, changed_flags) || 5306 test_bit(I40E_FLAG_LEGACY_RX_ENA, changed_flags) || 5307 test_bit(I40E_FLAG_SOURCE_PRUNING_DIS, changed_flags)) 5308 reset_needed = BIT(__I40E_PF_RESET_REQUESTED); 5309 5310 /* Before we finalize any flag changes, we need to perform some 5311 * checks to ensure that the changes are supported and safe. 5312 */ 5313 5314 /* ATR eviction is not supported on all devices */ 5315 if (test_bit(I40E_FLAG_HW_ATR_EVICT_ENA, new_flags) && 5316 !test_bit(I40E_HW_CAP_ATR_EVICT, pf->hw.caps)) 5317 return -EOPNOTSUPP; 5318 5319 /* If the driver detected FW LLDP was disabled on init, this flag could 5320 * be set, however we do not support _changing_ the flag: 5321 * - on XL710 if NPAR is enabled or FW API version < 1.7 5322 * - on X722 with FW API version < 1.6 5323 * There are situations where older FW versions/NPAR enabled PFs could 5324 * disable LLDP, however we _must_ not allow the user to enable/disable 5325 * LLDP with this flag on unsupported FW versions. 5326 */ 5327 if (test_bit(I40E_FLAG_FW_LLDP_DIS, changed_flags) && 5328 !test_bit(I40E_HW_CAP_FW_LLDP_STOPPABLE, pf->hw.caps)) { 5329 dev_warn(&pf->pdev->dev, 5330 "Device does not support changing FW LLDP\n"); 5331 return -EOPNOTSUPP; 5332 } 5333 5334 if (test_bit(I40E_FLAG_RS_FEC, changed_flags) && 5335 pf->hw.device_id != I40E_DEV_ID_25G_SFP28 && 5336 pf->hw.device_id != I40E_DEV_ID_25G_B) { 5337 dev_warn(&pf->pdev->dev, 5338 "Device does not support changing FEC configuration\n"); 5339 return -EOPNOTSUPP; 5340 } 5341 5342 if (test_bit(I40E_FLAG_BASE_R_FEC, changed_flags) && 5343 pf->hw.device_id != I40E_DEV_ID_25G_SFP28 && 5344 pf->hw.device_id != I40E_DEV_ID_25G_B && 5345 pf->hw.device_id != I40E_DEV_ID_KX_X722) { 5346 dev_warn(&pf->pdev->dev, 5347 "Device does not support changing FEC configuration\n"); 5348 return -EOPNOTSUPP; 5349 } 5350 5351 /* Process any additional changes needed as a result of flag changes. 5352 * The changed_flags value reflects the list of bits that were 5353 * changed in the code above. 5354 */ 5355 5356 /* Flush current ATR settings if ATR was disabled */ 5357 if (test_bit(I40E_FLAG_FD_ATR_ENA, changed_flags) && 5358 !test_bit(I40E_FLAG_FD_ATR_ENA, new_flags)) { 5359 set_bit(__I40E_FD_ATR_AUTO_DISABLED, pf->state); 5360 set_bit(__I40E_FD_FLUSH_REQUESTED, pf->state); 5361 } 5362 5363 if (test_bit(I40E_FLAG_TRUE_PROMISC_ENA, changed_flags)) { 5364 u16 sw_flags = 0, valid_flags = 0; 5365 int ret; 5366 5367 if (!test_bit(I40E_FLAG_TRUE_PROMISC_ENA, new_flags)) 5368 sw_flags = I40E_AQ_SET_SWITCH_CFG_PROMISC; 5369 valid_flags = I40E_AQ_SET_SWITCH_CFG_PROMISC; 5370 ret = i40e_aq_set_switch_config(&pf->hw, sw_flags, valid_flags, 5371 0, NULL); 5372 if (ret && pf->hw.aq.asq_last_status != LIBIE_AQ_RC_ESRCH) { 5373 dev_info(&pf->pdev->dev, 5374 "couldn't set switch config bits, err %pe aq_err %s\n", 5375 ERR_PTR(ret), 5376 libie_aq_str(pf->hw.aq.asq_last_status)); 5377 /* not a fatal problem, just keep going */ 5378 } 5379 } 5380 5381 if (test_bit(I40E_FLAG_RS_FEC, changed_flags) || 5382 test_bit(I40E_FLAG_BASE_R_FEC, changed_flags)) { 5383 u8 fec_cfg = 0; 5384 5385 if (test_bit(I40E_FLAG_RS_FEC, new_flags) && 5386 test_bit(I40E_FLAG_BASE_R_FEC, new_flags)) { 5387 fec_cfg = I40E_AQ_SET_FEC_AUTO; 5388 } else if (test_bit(I40E_FLAG_RS_FEC, new_flags)) { 5389 fec_cfg = (I40E_AQ_SET_FEC_REQUEST_RS | 5390 I40E_AQ_SET_FEC_ABILITY_RS); 5391 } else if (test_bit(I40E_FLAG_BASE_R_FEC, new_flags)) { 5392 fec_cfg = (I40E_AQ_SET_FEC_REQUEST_KR | 5393 I40E_AQ_SET_FEC_ABILITY_KR); 5394 } 5395 if (i40e_set_fec_cfg(dev, fec_cfg)) 5396 dev_warn(&pf->pdev->dev, "Cannot change FEC config\n"); 5397 } 5398 5399 if (test_bit(I40E_FLAG_LINK_DOWN_ON_CLOSE_ENA, changed_flags) && 5400 test_bit(I40E_FLAG_TOTAL_PORT_SHUTDOWN_ENA, orig_flags)) { 5401 dev_err(&pf->pdev->dev, 5402 "Setting link-down-on-close not supported on this port (because total-port-shutdown is enabled)\n"); 5403 return -EOPNOTSUPP; 5404 } 5405 5406 if (test_bit(I40E_FLAG_VF_VLAN_PRUNING_ENA, changed_flags) && 5407 pf->num_alloc_vfs) { 5408 dev_warn(&pf->pdev->dev, 5409 "Changing vf-vlan-pruning flag while VF(s) are active is not supported\n"); 5410 return -EOPNOTSUPP; 5411 } 5412 5413 if (test_bit(I40E_FLAG_LEGACY_RX_ENA, changed_flags) && 5414 I40E_2K_TOO_SMALL_WITH_PADDING) { 5415 dev_warn(&pf->pdev->dev, 5416 "2k Rx buffer is too small to fit standard MTU and skb_shared_info\n"); 5417 return -EOPNOTSUPP; 5418 } 5419 5420 if (test_bit(I40E_FLAG_LINK_DOWN_ON_CLOSE_ENA, changed_flags) && 5421 test_bit(I40E_FLAG_LINK_DOWN_ON_CLOSE_ENA, new_flags) && 5422 test_bit(I40E_FLAG_MFP_ENA, new_flags)) 5423 dev_warn(&pf->pdev->dev, 5424 "Turning on link-down-on-close flag may affect other partitions\n"); 5425 5426 if (test_bit(I40E_FLAG_FW_LLDP_DIS, changed_flags)) { 5427 if (test_bit(I40E_FLAG_FW_LLDP_DIS, new_flags)) { 5428#ifdef CONFIG_I40E_DCB 5429 i40e_dcb_sw_default_config(pf); 5430#endif /* CONFIG_I40E_DCB */ 5431 i40e_aq_cfg_lldp_mib_change_event(&pf->hw, false, NULL); 5432 i40e_aq_stop_lldp(&pf->hw, true, false, NULL); 5433 } else { 5434 status = i40e_aq_start_lldp(&pf->hw, false, NULL); 5435 if (status) { 5436 adq_err = pf->hw.aq.asq_last_status; 5437 switch (adq_err) { 5438 case LIBIE_AQ_RC_EEXIST: 5439 dev_warn(&pf->pdev->dev, 5440 "FW LLDP agent is already running\n"); 5441 reset_needed = 0; 5442 break; 5443 case LIBIE_AQ_RC_EPERM: 5444 dev_warn(&pf->pdev->dev, 5445 "Device configuration forbids SW from starting the LLDP agent.\n"); 5446 return -EINVAL; 5447 case LIBIE_AQ_RC_EAGAIN: 5448 dev_warn(&pf->pdev->dev, 5449 "Stop FW LLDP agent command is still being processed, please try again in a second.\n"); 5450 return -EBUSY; 5451 default: 5452 dev_warn(&pf->pdev->dev, 5453 "Starting FW LLDP agent failed: error: %pe, %s\n", 5454 ERR_PTR(status), 5455 libie_aq_str(adq_err)); 5456 return -EINVAL; 5457 } 5458 } 5459 } 5460 } 5461 5462 /* Now that we've checked to ensure that the new flags are valid, load 5463 * them into place. Since we only modify flags either (a) during 5464 * initialization or (b) while holding the RTNL lock, we don't need 5465 * anything fancy here. 5466 */ 5467 bitmap_copy(pf->flags, new_flags, I40E_PF_FLAGS_NBITS); 5468 5469 /* Issue reset to cause things to take effect, as additional bits 5470 * are added we will need to create a mask of bits requiring reset 5471 */ 5472 if (reset_needed) 5473 i40e_do_reset(pf, reset_needed, true); 5474 5475 return 0; 5476} 5477 5478/** 5479 * i40e_get_module_info - get (Q)SFP+ module type info 5480 * @netdev: network interface device structure 5481 * @modinfo: module EEPROM size and layout information structure 5482 **/ 5483static int i40e_get_module_info(struct net_device *netdev, 5484 struct ethtool_modinfo *modinfo) 5485{ 5486 struct i40e_netdev_priv *np = netdev_priv(netdev); 5487 struct i40e_vsi *vsi = np->vsi; 5488 struct i40e_pf *pf = vsi->back; 5489 struct i40e_hw *hw = &pf->hw; 5490 u32 sff8472_comp = 0; 5491 u32 sff8472_swap = 0; 5492 u32 sff8636_rev = 0; 5493 u32 type = 0; 5494 int status; 5495 5496 /* Check if firmware supports reading module EEPROM. */ 5497 if (!test_bit(I40E_HW_CAP_AQ_PHY_ACCESS, hw->caps)) { 5498 netdev_err(vsi->netdev, "Module EEPROM memory read not supported. Please update the NVM image.\n"); 5499 return -EINVAL; 5500 } 5501 5502 status = i40e_update_link_info(hw); 5503 if (status) 5504 return -EIO; 5505 5506 if (hw->phy.link_info.phy_type == I40E_PHY_TYPE_EMPTY) { 5507 netdev_err(vsi->netdev, "Cannot read module EEPROM memory. No module connected.\n"); 5508 return -EINVAL; 5509 } 5510 5511 type = hw->phy.link_info.module_type[0]; 5512 5513 switch (type) { 5514 case I40E_MODULE_TYPE_SFP: 5515 status = i40e_aq_get_phy_register(hw, 5516 I40E_AQ_PHY_REG_ACCESS_EXTERNAL_MODULE, 5517 I40E_I2C_EEPROM_DEV_ADDR, true, 5518 I40E_MODULE_SFF_8472_COMP, 5519 &sff8472_comp, NULL); 5520 if (status) 5521 return -EIO; 5522 5523 status = i40e_aq_get_phy_register(hw, 5524 I40E_AQ_PHY_REG_ACCESS_EXTERNAL_MODULE, 5525 I40E_I2C_EEPROM_DEV_ADDR, true, 5526 I40E_MODULE_SFF_8472_SWAP, 5527 &sff8472_swap, NULL); 5528 if (status) 5529 return -EIO; 5530 5531 /* Check if the module requires address swap to access 5532 * the other EEPROM memory page. 5533 */ 5534 if (sff8472_swap & I40E_MODULE_SFF_ADDR_MODE) { 5535 netdev_warn(vsi->netdev, "Module address swap to access page 0xA2 is not supported.\n"); 5536 modinfo->type = ETH_MODULE_SFF_8079; 5537 modinfo->eeprom_len = ETH_MODULE_SFF_8079_LEN; 5538 } else if (sff8472_comp == 0x00) { 5539 /* Module is not SFF-8472 compliant */ 5540 modinfo->type = ETH_MODULE_SFF_8079; 5541 modinfo->eeprom_len = ETH_MODULE_SFF_8079_LEN; 5542 } else if (!(sff8472_swap & I40E_MODULE_SFF_DDM_IMPLEMENTED)) { 5543 /* Module is SFF-8472 compliant but doesn't implement 5544 * Digital Diagnostic Monitoring (DDM). 5545 */ 5546 modinfo->type = ETH_MODULE_SFF_8079; 5547 modinfo->eeprom_len = ETH_MODULE_SFF_8079_LEN; 5548 } else { 5549 modinfo->type = ETH_MODULE_SFF_8472; 5550 modinfo->eeprom_len = ETH_MODULE_SFF_8472_LEN; 5551 } 5552 break; 5553 case I40E_MODULE_TYPE_QSFP_PLUS: 5554 /* Read from memory page 0. */ 5555 status = i40e_aq_get_phy_register(hw, 5556 I40E_AQ_PHY_REG_ACCESS_EXTERNAL_MODULE, 5557 0, true, 5558 I40E_MODULE_REVISION_ADDR, 5559 &sff8636_rev, NULL); 5560 if (status) 5561 return -EIO; 5562 /* Determine revision compliance byte */ 5563 if (sff8636_rev > 0x02) { 5564 /* Module is SFF-8636 compliant */ 5565 modinfo->type = ETH_MODULE_SFF_8636; 5566 modinfo->eeprom_len = I40E_MODULE_QSFP_MAX_LEN; 5567 } else { 5568 modinfo->type = ETH_MODULE_SFF_8436; 5569 modinfo->eeprom_len = I40E_MODULE_QSFP_MAX_LEN; 5570 } 5571 break; 5572 case I40E_MODULE_TYPE_QSFP28: 5573 modinfo->type = ETH_MODULE_SFF_8636; 5574 modinfo->eeprom_len = I40E_MODULE_QSFP_MAX_LEN; 5575 break; 5576 default: 5577 netdev_dbg(vsi->netdev, "SFP module type unrecognized or no SFP connector used.\n"); 5578 return -EOPNOTSUPP; 5579 } 5580 return 0; 5581} 5582 5583/** 5584 * i40e_get_module_eeprom - fills buffer with (Q)SFP+ module memory contents 5585 * @netdev: network interface device structure 5586 * @ee: EEPROM dump request structure 5587 * @data: buffer to be filled with EEPROM contents 5588 **/ 5589static int i40e_get_module_eeprom(struct net_device *netdev, 5590 struct ethtool_eeprom *ee, 5591 u8 *data) 5592{ 5593 struct i40e_netdev_priv *np = netdev_priv(netdev); 5594 struct i40e_vsi *vsi = np->vsi; 5595 struct i40e_pf *pf = vsi->back; 5596 struct i40e_hw *hw = &pf->hw; 5597 bool is_sfp = false; 5598 u32 value = 0; 5599 int status; 5600 int i; 5601 5602 if (!ee || !ee->len || !data) 5603 return -EINVAL; 5604 5605 if (hw->phy.link_info.module_type[0] == I40E_MODULE_TYPE_SFP) 5606 is_sfp = true; 5607 5608 for (i = 0; i < ee->len; i++) { 5609 u32 offset = i + ee->offset; 5610 u32 addr = is_sfp ? I40E_I2C_EEPROM_DEV_ADDR : 0; 5611 5612 /* Check if we need to access the other memory page */ 5613 if (is_sfp) { 5614 if (offset >= ETH_MODULE_SFF_8079_LEN) { 5615 offset -= ETH_MODULE_SFF_8079_LEN; 5616 addr = I40E_I2C_EEPROM_DEV_ADDR2; 5617 } 5618 } else { 5619 while (offset >= ETH_MODULE_SFF_8436_LEN) { 5620 /* Compute memory page number and offset. */ 5621 offset -= ETH_MODULE_SFF_8436_LEN / 2; 5622 addr++; 5623 } 5624 } 5625 5626 status = i40e_aq_get_phy_register(hw, 5627 I40E_AQ_PHY_REG_ACCESS_EXTERNAL_MODULE, 5628 addr, true, offset, &value, NULL); 5629 if (status) 5630 return -EIO; 5631 data[i] = value; 5632 } 5633 return 0; 5634} 5635 5636static void i40e_eee_capability_to_kedata_supported(__le16 eee_capability_, 5637 unsigned long *supported) 5638{ 5639 const int eee_capability = le16_to_cpu(eee_capability_); 5640 static const int lut[] = { 5641 ETHTOOL_LINK_MODE_100baseT_Full_BIT, 5642 ETHTOOL_LINK_MODE_1000baseT_Full_BIT, 5643 ETHTOOL_LINK_MODE_10000baseT_Full_BIT, 5644 ETHTOOL_LINK_MODE_1000baseKX_Full_BIT, 5645 ETHTOOL_LINK_MODE_10000baseKX4_Full_BIT, 5646 ETHTOOL_LINK_MODE_10000baseKR_Full_BIT, 5647 ETHTOOL_LINK_MODE_40000baseKR4_Full_BIT, 5648 }; 5649 5650 linkmode_zero(supported); 5651 for (unsigned int i = ARRAY_SIZE(lut); i--; ) 5652 if (eee_capability & BIT(i + 1)) 5653 linkmode_set_bit(lut[i], supported); 5654} 5655 5656static int i40e_get_eee(struct net_device *netdev, struct ethtool_keee *edata) 5657{ 5658 struct i40e_netdev_priv *np = netdev_priv(netdev); 5659 struct i40e_aq_get_phy_abilities_resp phy_cfg; 5660 struct i40e_vsi *vsi = np->vsi; 5661 struct i40e_pf *pf = vsi->back; 5662 struct i40e_hw *hw = &pf->hw; 5663 int status; 5664 5665 /* Get initial PHY capabilities */ 5666 status = i40e_aq_get_phy_capabilities(hw, false, true, &phy_cfg, NULL); 5667 if (status) 5668 return -EAGAIN; 5669 5670 /* Check whether NIC configuration is compatible with Energy Efficient 5671 * Ethernet (EEE) mode. 5672 */ 5673 if (phy_cfg.eee_capability == 0) 5674 return -EOPNOTSUPP; 5675 5676 i40e_eee_capability_to_kedata_supported(phy_cfg.eee_capability, 5677 edata->supported); 5678 linkmode_copy(edata->lp_advertised, edata->supported); 5679 5680 /* Get current configuration */ 5681 status = i40e_aq_get_phy_capabilities(hw, false, false, &phy_cfg, NULL); 5682 if (status) 5683 return -EAGAIN; 5684 5685 linkmode_zero(edata->advertised); 5686 if (phy_cfg.eee_capability) 5687 linkmode_copy(edata->advertised, edata->supported); 5688 edata->eee_enabled = !!phy_cfg.eee_capability; 5689 edata->tx_lpi_enabled = pf->stats.tx_lpi_status; 5690 5691 edata->eee_active = pf->stats.tx_lpi_status && pf->stats.rx_lpi_status; 5692 5693 return 0; 5694} 5695 5696static int i40e_is_eee_param_supported(struct net_device *netdev, 5697 struct ethtool_keee *edata) 5698{ 5699 struct i40e_netdev_priv *np = netdev_priv(netdev); 5700 struct i40e_vsi *vsi = np->vsi; 5701 struct i40e_pf *pf = vsi->back; 5702 struct i40e_ethtool_not_used { 5703 bool value; 5704 const char *name; 5705 } param[] = { 5706 {!!(edata->advertised[0] & ~edata->supported[0]), "advertise"}, 5707 {!!edata->tx_lpi_timer, "tx-timer"}, 5708 {edata->tx_lpi_enabled != pf->stats.tx_lpi_status, "tx-lpi"} 5709 }; 5710 int i; 5711 5712 for (i = 0; i < ARRAY_SIZE(param); i++) { 5713 if (param[i].value) { 5714 netdev_info(netdev, 5715 "EEE setting %s not supported\n", 5716 param[i].name); 5717 return -EOPNOTSUPP; 5718 } 5719 } 5720 5721 return 0; 5722} 5723 5724static int i40e_set_eee(struct net_device *netdev, struct ethtool_keee *edata) 5725{ 5726 struct i40e_netdev_priv *np = netdev_priv(netdev); 5727 struct i40e_aq_get_phy_abilities_resp abilities; 5728 struct i40e_aq_set_phy_config config; 5729 struct i40e_vsi *vsi = np->vsi; 5730 struct i40e_pf *pf = vsi->back; 5731 struct i40e_hw *hw = &pf->hw; 5732 __le16 eee_capability; 5733 int status; 5734 5735 /* Deny parameters we don't support */ 5736 if (i40e_is_eee_param_supported(netdev, edata)) 5737 return -EOPNOTSUPP; 5738 5739 /* Get initial PHY capabilities */ 5740 status = i40e_aq_get_phy_capabilities(hw, false, true, &abilities, 5741 NULL); 5742 if (status) 5743 return -EAGAIN; 5744 5745 /* Check whether NIC configuration is compatible with Energy Efficient 5746 * Ethernet (EEE) mode. 5747 */ 5748 if (abilities.eee_capability == 0) 5749 return -EOPNOTSUPP; 5750 5751 /* Cache initial EEE capability */ 5752 eee_capability = abilities.eee_capability; 5753 5754 /* Get current PHY configuration */ 5755 status = i40e_aq_get_phy_capabilities(hw, false, false, &abilities, 5756 NULL); 5757 if (status) 5758 return -EAGAIN; 5759 5760 /* Cache current PHY configuration */ 5761 config.phy_type = abilities.phy_type; 5762 config.phy_type_ext = abilities.phy_type_ext; 5763 config.link_speed = abilities.link_speed; 5764 config.abilities = abilities.abilities | 5765 I40E_AQ_PHY_ENABLE_ATOMIC_LINK; 5766 config.eeer = abilities.eeer_val; 5767 config.low_power_ctrl = abilities.d3_lpan; 5768 config.fec_config = abilities.fec_cfg_curr_mod_ext_info & 5769 I40E_AQ_PHY_FEC_CONFIG_MASK; 5770 5771 /* Set desired EEE state */ 5772 if (edata->eee_enabled) { 5773 config.eee_capability = eee_capability; 5774 config.eeer |= cpu_to_le32(I40E_PRTPM_EEER_TX_LPI_EN_MASK); 5775 } else { 5776 config.eee_capability = 0; 5777 config.eeer &= cpu_to_le32(~I40E_PRTPM_EEER_TX_LPI_EN_MASK); 5778 } 5779 5780 /* Apply modified PHY configuration */ 5781 status = i40e_aq_set_phy_config(hw, &config, NULL); 5782 if (status) 5783 return -EAGAIN; 5784 5785 return 0; 5786} 5787 5788static const struct ethtool_ops i40e_ethtool_recovery_mode_ops = { 5789 .get_drvinfo = i40e_get_drvinfo, 5790 .set_eeprom = i40e_set_eeprom, 5791 .get_eeprom_len = i40e_get_eeprom_len, 5792 .get_eeprom = i40e_get_eeprom, 5793}; 5794 5795static const struct ethtool_ops i40e_ethtool_ops = { 5796 .supported_coalesce_params = ETHTOOL_COALESCE_USECS | 5797 ETHTOOL_COALESCE_TX_MAX_FRAMES_IRQ | 5798 ETHTOOL_COALESCE_USE_ADAPTIVE | 5799 ETHTOOL_COALESCE_RX_USECS_HIGH | 5800 ETHTOOL_COALESCE_TX_USECS_HIGH, 5801 .get_drvinfo = i40e_get_drvinfo, 5802 .get_regs_len = i40e_get_regs_len, 5803 .get_regs = i40e_get_regs, 5804 .nway_reset = i40e_nway_reset, 5805 .get_link = ethtool_op_get_link, 5806 .get_link_ext_stats = i40e_get_link_ext_stats, 5807 .get_wol = i40e_get_wol, 5808 .set_wol = i40e_set_wol, 5809 .set_eeprom = i40e_set_eeprom, 5810 .get_eeprom_len = i40e_get_eeprom_len, 5811 .get_eeprom = i40e_get_eeprom, 5812 .get_ringparam = i40e_get_ringparam, 5813 .set_ringparam = i40e_set_ringparam, 5814 .get_pauseparam = i40e_get_pauseparam, 5815 .set_pauseparam = i40e_set_pauseparam, 5816 .get_msglevel = i40e_get_msglevel, 5817 .set_msglevel = i40e_set_msglevel, 5818 .get_rxnfc = i40e_get_rxnfc, 5819 .set_rxnfc = i40e_set_rxnfc, 5820 .get_rx_ring_count = i40e_get_rx_ring_count, 5821 .self_test = i40e_diag_test, 5822 .get_strings = i40e_get_strings, 5823 .get_eee = i40e_get_eee, 5824 .set_eee = i40e_set_eee, 5825 .set_phys_id = i40e_set_phys_id, 5826 .get_sset_count = i40e_get_sset_count, 5827 .get_ethtool_stats = i40e_get_ethtool_stats, 5828 .get_coalesce = i40e_get_coalesce, 5829 .set_coalesce = i40e_set_coalesce, 5830 .get_rxfh_key_size = i40e_get_rxfh_key_size, 5831 .get_rxfh_indir_size = i40e_get_rxfh_indir_size, 5832 .get_rxfh = i40e_get_rxfh, 5833 .set_rxfh = i40e_set_rxfh, 5834 .get_rxfh_fields = i40e_get_rxfh_fields, 5835 .set_rxfh_fields = i40e_set_rxfh_fields, 5836 .get_channels = i40e_get_channels, 5837 .set_channels = i40e_set_channels, 5838 .get_module_info = i40e_get_module_info, 5839 .get_module_eeprom = i40e_get_module_eeprom, 5840 .get_ts_info = i40e_get_ts_info, 5841 .get_priv_flags = i40e_get_priv_flags, 5842 .set_priv_flags = i40e_set_priv_flags, 5843 .get_per_queue_coalesce = i40e_get_per_queue_coalesce, 5844 .set_per_queue_coalesce = i40e_set_per_queue_coalesce, 5845 .get_link_ksettings = i40e_get_link_ksettings, 5846 .set_link_ksettings = i40e_set_link_ksettings, 5847 .get_fecparam = i40e_get_fec_param, 5848 .set_fecparam = i40e_set_fec_param, 5849 .flash_device = i40e_ddp_flash, 5850}; 5851 5852void i40e_set_ethtool_ops(struct net_device *netdev) 5853{ 5854 struct i40e_netdev_priv *np = netdev_priv(netdev); 5855 struct i40e_pf *pf = np->vsi->back; 5856 5857 if (!test_bit(__I40E_RECOVERY_MODE, pf->state)) 5858 netdev->ethtool_ops = &i40e_ethtool_ops; 5859 else 5860 netdev->ethtool_ops = &i40e_ethtool_recovery_mode_ops; 5861}
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