1// SPDX-License-Identifier: GPL-2.0 2/* Copyright(c) 2013 - 2018 Intel Corporation. */ 3 4/* ethtool support for i40e */ 5 6#include "i40e.h" 7#include "i40e_diag.h" 8#include "i40e_txrx_common.h" 9 10/* ethtool statistics helpers */ 11 12/** 13 * struct i40e_stats - definition for an ethtool statistic 14 * @stat_string: statistic name to display in ethtool -S output 15 * @sizeof_stat: the sizeof() the stat, must be no greater than sizeof(u64) 16 * @stat_offset: offsetof() the stat from a base pointer 17 * 18 * This structure defines a statistic to be added to the ethtool stats buffer. 19 * It defines a statistic as offset from a common base pointer. Stats should 20 * be defined in constant arrays using the I40E_STAT macro, with every element 21 * of the array using the same _type for calculating the sizeof_stat and 22 * stat_offset. 23 * 24 * The @sizeof_stat is expected to be sizeof(u8), sizeof(u16), sizeof(u32) or 25 * sizeof(u64). Other sizes are not expected and will produce a WARN_ONCE from 26 * the i40e_add_ethtool_stat() helper function. 27 * 28 * The @stat_string is interpreted as a format string, allowing formatted 29 * values to be inserted while looping over multiple structures for a given 30 * statistics array. Thus, every statistic string in an array should have the 31 * same type and number of format specifiers, to be formatted by variadic 32 * arguments to the i40e_add_stat_string() helper function. 33 **/ 34struct i40e_stats { 35 char stat_string[ETH_GSTRING_LEN]; 36 int sizeof_stat; 37 int stat_offset; 38}; 39 40/* Helper macro to define an i40e_stat structure with proper size and type. 41 * Use this when defining constant statistics arrays. Note that @_type expects 42 * only a type name and is used multiple times. 43 */ 44#define I40E_STAT(_type, _name, _stat) { \ 45 .stat_string = _name, \ 46 .sizeof_stat = sizeof_field(_type, _stat), \ 47 .stat_offset = offsetof(_type, _stat) \ 48} 49 50/* Helper macro for defining some statistics directly copied from the netdev 51 * stats structure. 52 */ 53#define I40E_NETDEV_STAT(_net_stat) \ 54 I40E_STAT(struct rtnl_link_stats64, #_net_stat, _net_stat) 55 56/* Helper macro for defining some statistics related to queues */ 57#define I40E_QUEUE_STAT(_name, _stat) \ 58 I40E_STAT(struct i40e_ring, _name, _stat) 59 60/* Stats associated with a Tx or Rx ring */ 61static const struct i40e_stats i40e_gstrings_queue_stats[] = { 62 I40E_QUEUE_STAT("%s-%u.packets", stats.packets), 63 I40E_QUEUE_STAT("%s-%u.bytes", stats.bytes), 64}; 65 66/** 67 * i40e_add_one_ethtool_stat - copy the stat into the supplied buffer 68 * @data: location to store the stat value 69 * @pointer: basis for where to copy from 70 * @stat: the stat definition 71 * 72 * Copies the stat data defined by the pointer and stat structure pair into 73 * the memory supplied as data. Used to implement i40e_add_ethtool_stats and 74 * i40e_add_queue_stats. If the pointer is null, data will be zero'd. 75 */ 76static void 77i40e_add_one_ethtool_stat(u64 *data, void *pointer, 78 const struct i40e_stats *stat) 79{ 80 char *p; 81 82 if (!pointer) { 83 /* ensure that the ethtool data buffer is zero'd for any stats 84 * which don't have a valid pointer. 85 */ 86 *data = 0; 87 return; 88 } 89 90 p = (char *)pointer + stat->stat_offset; 91 switch (stat->sizeof_stat) { 92 case sizeof(u64): 93 *data = *((u64 *)p); 94 break; 95 case sizeof(u32): 96 *data = *((u32 *)p); 97 break; 98 case sizeof(u16): 99 *data = *((u16 *)p); 100 break; 101 case sizeof(u8): 102 *data = *((u8 *)p); 103 break; 104 default: 105 WARN_ONCE(1, "unexpected stat size for %s", 106 stat->stat_string); 107 *data = 0; 108 } 109} 110 111/** 112 * __i40e_add_ethtool_stats - copy stats into the ethtool supplied buffer 113 * @data: ethtool stats buffer 114 * @pointer: location to copy stats from 115 * @stats: array of stats to copy 116 * @size: the size of the stats definition 117 * 118 * Copy the stats defined by the stats array using the pointer as a base into 119 * the data buffer supplied by ethtool. Updates the data pointer to point to 120 * the next empty location for successive calls to __i40e_add_ethtool_stats. 121 * If pointer is null, set the data values to zero and update the pointer to 122 * skip these stats. 123 **/ 124static void 125__i40e_add_ethtool_stats(u64 **data, void *pointer, 126 const struct i40e_stats stats[], 127 const unsigned int size) 128{ 129 unsigned int i; 130 131 for (i = 0; i < size; i++) 132 i40e_add_one_ethtool_stat((*data)++, pointer, &stats[i]); 133} 134 135/** 136 * i40e_add_ethtool_stats - copy stats into ethtool supplied buffer 137 * @data: ethtool stats buffer 138 * @pointer: location where stats are stored 139 * @stats: static const array of stat definitions 140 * 141 * Macro to ease the use of __i40e_add_ethtool_stats by taking a static 142 * constant stats array and passing the ARRAY_SIZE(). This avoids typos by 143 * ensuring that we pass the size associated with the given stats array. 144 * 145 * The parameter @stats is evaluated twice, so parameters with side effects 146 * should be avoided. 147 **/ 148#define i40e_add_ethtool_stats(data, pointer, stats) \ 149 __i40e_add_ethtool_stats(data, pointer, stats, ARRAY_SIZE(stats)) 150 151/** 152 * i40e_add_queue_stats - copy queue statistics into supplied buffer 153 * @data: ethtool stats buffer 154 * @ring: the ring to copy 155 * 156 * Queue statistics must be copied while protected by 157 * u64_stats_fetch_begin_irq, so we can't directly use i40e_add_ethtool_stats. 158 * Assumes that queue stats are defined in i40e_gstrings_queue_stats. If the 159 * ring pointer is null, zero out the queue stat values and update the data 160 * pointer. Otherwise safely copy the stats from the ring into the supplied 161 * buffer and update the data pointer when finished. 162 * 163 * This function expects to be called while under rcu_read_lock(). 164 **/ 165static void 166i40e_add_queue_stats(u64 **data, struct i40e_ring *ring) 167{ 168 const unsigned int size = ARRAY_SIZE(i40e_gstrings_queue_stats); 169 const struct i40e_stats *stats = i40e_gstrings_queue_stats; 170 unsigned int start; 171 unsigned int i; 172 173 /* To avoid invalid statistics values, ensure that we keep retrying 174 * the copy until we get a consistent value according to 175 * u64_stats_fetch_retry_irq. But first, make sure our ring is 176 * non-null before attempting to access its syncp. 177 */ 178 do { 179 start = !ring ? 0 : u64_stats_fetch_begin_irq(&ring->syncp); 180 for (i = 0; i < size; i++) { 181 i40e_add_one_ethtool_stat(&(*data)[i], ring, 182 &stats[i]); 183 } 184 } while (ring && u64_stats_fetch_retry_irq(&ring->syncp, start)); 185 186 /* Once we successfully copy the stats in, update the data pointer */ 187 *data += size; 188} 189 190/** 191 * __i40e_add_stat_strings - copy stat strings into ethtool buffer 192 * @p: ethtool supplied buffer 193 * @stats: stat definitions array 194 * @size: size of the stats array 195 * 196 * Format and copy the strings described by stats into the buffer pointed at 197 * by p. 198 **/ 199static void __i40e_add_stat_strings(u8 **p, const struct i40e_stats stats[], 200 const unsigned int size, ...) 201{ 202 unsigned int i; 203 204 for (i = 0; i < size; i++) { 205 va_list args; 206 207 va_start(args, size); 208 vsnprintf(*p, ETH_GSTRING_LEN, stats[i].stat_string, args); 209 *p += ETH_GSTRING_LEN; 210 va_end(args); 211 } 212} 213 214/** 215 * 40e_add_stat_strings - copy stat strings into ethtool buffer 216 * @p: ethtool supplied buffer 217 * @stats: stat definitions array 218 * 219 * Format and copy the strings described by the const static stats value into 220 * the buffer pointed at by p. 221 * 222 * The parameter @stats is evaluated twice, so parameters with side effects 223 * should be avoided. Additionally, stats must be an array such that 224 * ARRAY_SIZE can be called on it. 225 **/ 226#define i40e_add_stat_strings(p, stats, ...) \ 227 __i40e_add_stat_strings(p, stats, ARRAY_SIZE(stats), ## __VA_ARGS__) 228 229#define I40E_PF_STAT(_name, _stat) \ 230 I40E_STAT(struct i40e_pf, _name, _stat) 231#define I40E_VSI_STAT(_name, _stat) \ 232 I40E_STAT(struct i40e_vsi, _name, _stat) 233#define I40E_VEB_STAT(_name, _stat) \ 234 I40E_STAT(struct i40e_veb, _name, _stat) 235#define I40E_VEB_TC_STAT(_name, _stat) \ 236 I40E_STAT(struct i40e_cp_veb_tc_stats, _name, _stat) 237#define I40E_PFC_STAT(_name, _stat) \ 238 I40E_STAT(struct i40e_pfc_stats, _name, _stat) 239#define I40E_QUEUE_STAT(_name, _stat) \ 240 I40E_STAT(struct i40e_ring, _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(tx_dropped), 251 I40E_NETDEV_STAT(collisions), 252 I40E_NETDEV_STAT(rx_length_errors), 253 I40E_NETDEV_STAT(rx_crc_errors), 254}; 255 256static const struct i40e_stats i40e_gstrings_veb_stats[] = { 257 I40E_VEB_STAT("veb.rx_bytes", stats.rx_bytes), 258 I40E_VEB_STAT("veb.tx_bytes", stats.tx_bytes), 259 I40E_VEB_STAT("veb.rx_unicast", stats.rx_unicast), 260 I40E_VEB_STAT("veb.tx_unicast", stats.tx_unicast), 261 I40E_VEB_STAT("veb.rx_multicast", stats.rx_multicast), 262 I40E_VEB_STAT("veb.tx_multicast", stats.tx_multicast), 263 I40E_VEB_STAT("veb.rx_broadcast", stats.rx_broadcast), 264 I40E_VEB_STAT("veb.tx_broadcast", stats.tx_broadcast), 265 I40E_VEB_STAT("veb.rx_discards", stats.rx_discards), 266 I40E_VEB_STAT("veb.tx_discards", stats.tx_discards), 267 I40E_VEB_STAT("veb.tx_errors", stats.tx_errors), 268 I40E_VEB_STAT("veb.rx_unknown_protocol", stats.rx_unknown_protocol), 269}; 270 271struct i40e_cp_veb_tc_stats { 272 u64 tc_rx_packets; 273 u64 tc_rx_bytes; 274 u64 tc_tx_packets; 275 u64 tc_tx_bytes; 276}; 277 278static const struct i40e_stats i40e_gstrings_veb_tc_stats[] = { 279 I40E_VEB_TC_STAT("veb.tc_%u_tx_packets", tc_tx_packets), 280 I40E_VEB_TC_STAT("veb.tc_%u_tx_bytes", tc_tx_bytes), 281 I40E_VEB_TC_STAT("veb.tc_%u_rx_packets", tc_rx_packets), 282 I40E_VEB_TC_STAT("veb.tc_%u_rx_bytes", tc_rx_bytes), 283}; 284 285static const struct i40e_stats i40e_gstrings_misc_stats[] = { 286 I40E_VSI_STAT("rx_unicast", eth_stats.rx_unicast), 287 I40E_VSI_STAT("tx_unicast", eth_stats.tx_unicast), 288 I40E_VSI_STAT("rx_multicast", eth_stats.rx_multicast), 289 I40E_VSI_STAT("tx_multicast", eth_stats.tx_multicast), 290 I40E_VSI_STAT("rx_broadcast", eth_stats.rx_broadcast), 291 I40E_VSI_STAT("tx_broadcast", eth_stats.tx_broadcast), 292 I40E_VSI_STAT("rx_unknown_protocol", eth_stats.rx_unknown_protocol), 293 I40E_VSI_STAT("tx_linearize", tx_linearize), 294 I40E_VSI_STAT("tx_force_wb", tx_force_wb), 295 I40E_VSI_STAT("tx_busy", tx_busy), 296 I40E_VSI_STAT("rx_alloc_fail", rx_buf_failed), 297 I40E_VSI_STAT("rx_pg_alloc_fail", rx_page_failed), 298}; 299 300/* These PF_STATs might look like duplicates of some NETDEV_STATs, 301 * but they are separate. This device supports Virtualization, and 302 * as such might have several netdevs supporting VMDq and FCoE going 303 * through a single port. The NETDEV_STATs are for individual netdevs 304 * seen at the top of the stack, and the PF_STATs are for the physical 305 * function at the bottom of the stack hosting those netdevs. 306 * 307 * The PF_STATs are appended to the netdev stats only when ethtool -S 308 * is queried on the base PF netdev, not on the VMDq or FCoE netdev. 309 */ 310static const struct i40e_stats i40e_gstrings_stats[] = { 311 I40E_PF_STAT("port.rx_bytes", stats.eth.rx_bytes), 312 I40E_PF_STAT("port.tx_bytes", stats.eth.tx_bytes), 313 I40E_PF_STAT("port.rx_unicast", stats.eth.rx_unicast), 314 I40E_PF_STAT("port.tx_unicast", stats.eth.tx_unicast), 315 I40E_PF_STAT("port.rx_multicast", stats.eth.rx_multicast), 316 I40E_PF_STAT("port.tx_multicast", stats.eth.tx_multicast), 317 I40E_PF_STAT("port.rx_broadcast", stats.eth.rx_broadcast), 318 I40E_PF_STAT("port.tx_broadcast", stats.eth.tx_broadcast), 319 I40E_PF_STAT("port.tx_errors", stats.eth.tx_errors), 320 I40E_PF_STAT("port.rx_dropped", stats.eth.rx_discards), 321 I40E_PF_STAT("port.tx_dropped_link_down", stats.tx_dropped_link_down), 322 I40E_PF_STAT("port.rx_crc_errors", stats.crc_errors), 323 I40E_PF_STAT("port.illegal_bytes", stats.illegal_bytes), 324 I40E_PF_STAT("port.mac_local_faults", stats.mac_local_faults), 325 I40E_PF_STAT("port.mac_remote_faults", stats.mac_remote_faults), 326 I40E_PF_STAT("port.tx_timeout", tx_timeout_count), 327 I40E_PF_STAT("port.rx_csum_bad", hw_csum_rx_error), 328 I40E_PF_STAT("port.rx_length_errors", stats.rx_length_errors), 329 I40E_PF_STAT("port.link_xon_rx", stats.link_xon_rx), 330 I40E_PF_STAT("port.link_xoff_rx", stats.link_xoff_rx), 331 I40E_PF_STAT("port.link_xon_tx", stats.link_xon_tx), 332 I40E_PF_STAT("port.link_xoff_tx", stats.link_xoff_tx), 333 I40E_PF_STAT("port.rx_size_64", stats.rx_size_64), 334 I40E_PF_STAT("port.rx_size_127", stats.rx_size_127), 335 I40E_PF_STAT("port.rx_size_255", stats.rx_size_255), 336 I40E_PF_STAT("port.rx_size_511", stats.rx_size_511), 337 I40E_PF_STAT("port.rx_size_1023", stats.rx_size_1023), 338 I40E_PF_STAT("port.rx_size_1522", stats.rx_size_1522), 339 I40E_PF_STAT("port.rx_size_big", stats.rx_size_big), 340 I40E_PF_STAT("port.tx_size_64", stats.tx_size_64), 341 I40E_PF_STAT("port.tx_size_127", stats.tx_size_127), 342 I40E_PF_STAT("port.tx_size_255", stats.tx_size_255), 343 I40E_PF_STAT("port.tx_size_511", stats.tx_size_511), 344 I40E_PF_STAT("port.tx_size_1023", stats.tx_size_1023), 345 I40E_PF_STAT("port.tx_size_1522", stats.tx_size_1522), 346 I40E_PF_STAT("port.tx_size_big", stats.tx_size_big), 347 I40E_PF_STAT("port.rx_undersize", stats.rx_undersize), 348 I40E_PF_STAT("port.rx_fragments", stats.rx_fragments), 349 I40E_PF_STAT("port.rx_oversize", stats.rx_oversize), 350 I40E_PF_STAT("port.rx_jabber", stats.rx_jabber), 351 I40E_PF_STAT("port.VF_admin_queue_requests", vf_aq_requests), 352 I40E_PF_STAT("port.arq_overflows", arq_overflows), 353 I40E_PF_STAT("port.tx_hwtstamp_timeouts", tx_hwtstamp_timeouts), 354 I40E_PF_STAT("port.rx_hwtstamp_cleared", rx_hwtstamp_cleared), 355 I40E_PF_STAT("port.tx_hwtstamp_skipped", tx_hwtstamp_skipped), 356 I40E_PF_STAT("port.fdir_flush_cnt", fd_flush_cnt), 357 I40E_PF_STAT("port.fdir_atr_match", stats.fd_atr_match), 358 I40E_PF_STAT("port.fdir_atr_tunnel_match", stats.fd_atr_tunnel_match), 359 I40E_PF_STAT("port.fdir_atr_status", stats.fd_atr_status), 360 I40E_PF_STAT("port.fdir_sb_match", stats.fd_sb_match), 361 I40E_PF_STAT("port.fdir_sb_status", stats.fd_sb_status), 362 363 /* LPI stats */ 364 I40E_PF_STAT("port.tx_lpi_status", stats.tx_lpi_status), 365 I40E_PF_STAT("port.rx_lpi_status", stats.rx_lpi_status), 366 I40E_PF_STAT("port.tx_lpi_count", stats.tx_lpi_count), 367 I40E_PF_STAT("port.rx_lpi_count", stats.rx_lpi_count), 368}; 369 370struct i40e_pfc_stats { 371 u64 priority_xon_rx; 372 u64 priority_xoff_rx; 373 u64 priority_xon_tx; 374 u64 priority_xoff_tx; 375 u64 priority_xon_2_xoff; 376}; 377 378static const struct i40e_stats i40e_gstrings_pfc_stats[] = { 379 I40E_PFC_STAT("port.tx_priority_%u_xon_tx", priority_xon_tx), 380 I40E_PFC_STAT("port.tx_priority_%u_xoff_tx", priority_xoff_tx), 381 I40E_PFC_STAT("port.rx_priority_%u_xon_rx", priority_xon_rx), 382 I40E_PFC_STAT("port.rx_priority_%u_xoff_rx", priority_xoff_rx), 383 I40E_PFC_STAT("port.rx_priority_%u_xon_2_xoff", priority_xon_2_xoff), 384}; 385 386#define I40E_NETDEV_STATS_LEN ARRAY_SIZE(i40e_gstrings_net_stats) 387 388#define I40E_MISC_STATS_LEN ARRAY_SIZE(i40e_gstrings_misc_stats) 389 390#define I40E_VSI_STATS_LEN (I40E_NETDEV_STATS_LEN + I40E_MISC_STATS_LEN) 391 392#define I40E_PFC_STATS_LEN (ARRAY_SIZE(i40e_gstrings_pfc_stats) * \ 393 I40E_MAX_USER_PRIORITY) 394 395#define I40E_VEB_STATS_LEN (ARRAY_SIZE(i40e_gstrings_veb_stats) + \ 396 (ARRAY_SIZE(i40e_gstrings_veb_tc_stats) * \ 397 I40E_MAX_TRAFFIC_CLASS)) 398 399#define I40E_GLOBAL_STATS_LEN ARRAY_SIZE(i40e_gstrings_stats) 400 401#define I40E_PF_STATS_LEN (I40E_GLOBAL_STATS_LEN + \ 402 I40E_PFC_STATS_LEN + \ 403 I40E_VEB_STATS_LEN + \ 404 I40E_VSI_STATS_LEN) 405 406/* Length of stats for a single queue */ 407#define I40E_QUEUE_STATS_LEN ARRAY_SIZE(i40e_gstrings_queue_stats) 408 409enum i40e_ethtool_test_id { 410 I40E_ETH_TEST_REG = 0, 411 I40E_ETH_TEST_EEPROM, 412 I40E_ETH_TEST_INTR, 413 I40E_ETH_TEST_LINK, 414}; 415 416static const char i40e_gstrings_test[][ETH_GSTRING_LEN] = { 417 "Register test (offline)", 418 "Eeprom test (offline)", 419 "Interrupt test (offline)", 420 "Link test (on/offline)" 421}; 422 423#define I40E_TEST_LEN (sizeof(i40e_gstrings_test) / ETH_GSTRING_LEN) 424 425struct i40e_priv_flags { 426 char flag_string[ETH_GSTRING_LEN]; 427 u64 flag; 428 bool read_only; 429}; 430 431#define I40E_PRIV_FLAG(_name, _flag, _read_only) { \ 432 .flag_string = _name, \ 433 .flag = _flag, \ 434 .read_only = _read_only, \ 435} 436 437static const struct i40e_priv_flags i40e_gstrings_priv_flags[] = { 438 /* NOTE: MFP setting cannot be changed */ 439 I40E_PRIV_FLAG("MFP", I40E_FLAG_MFP_ENABLED, 1), 440 I40E_PRIV_FLAG("total-port-shutdown", 441 I40E_FLAG_TOTAL_PORT_SHUTDOWN_ENABLED, 1), 442 I40E_PRIV_FLAG("LinkPolling", I40E_FLAG_LINK_POLLING_ENABLED, 0), 443 I40E_PRIV_FLAG("flow-director-atr", I40E_FLAG_FD_ATR_ENABLED, 0), 444 I40E_PRIV_FLAG("veb-stats", I40E_FLAG_VEB_STATS_ENABLED, 0), 445 I40E_PRIV_FLAG("hw-atr-eviction", I40E_FLAG_HW_ATR_EVICT_ENABLED, 0), 446 I40E_PRIV_FLAG("link-down-on-close", 447 I40E_FLAG_LINK_DOWN_ON_CLOSE_ENABLED, 0), 448 I40E_PRIV_FLAG("legacy-rx", I40E_FLAG_LEGACY_RX, 0), 449 I40E_PRIV_FLAG("disable-source-pruning", 450 I40E_FLAG_SOURCE_PRUNING_DISABLED, 0), 451 I40E_PRIV_FLAG("disable-fw-lldp", I40E_FLAG_DISABLE_FW_LLDP, 0), 452 I40E_PRIV_FLAG("rs-fec", I40E_FLAG_RS_FEC, 0), 453 I40E_PRIV_FLAG("base-r-fec", I40E_FLAG_BASE_R_FEC, 0), 454}; 455 456#define I40E_PRIV_FLAGS_STR_LEN ARRAY_SIZE(i40e_gstrings_priv_flags) 457 458/* Private flags with a global effect, restricted to PF 0 */ 459static const struct i40e_priv_flags i40e_gl_gstrings_priv_flags[] = { 460 I40E_PRIV_FLAG("vf-true-promisc-support", 461 I40E_FLAG_TRUE_PROMISC_SUPPORT, 0), 462}; 463 464#define I40E_GL_PRIV_FLAGS_STR_LEN ARRAY_SIZE(i40e_gl_gstrings_priv_flags) 465 466/** 467 * i40e_partition_setting_complaint - generic complaint for MFP restriction 468 * @pf: the PF struct 469 **/ 470static void i40e_partition_setting_complaint(struct i40e_pf *pf) 471{ 472 dev_info(&pf->pdev->dev, 473 "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"); 474} 475 476/** 477 * i40e_phy_type_to_ethtool - convert the phy_types to ethtool link modes 478 * @pf: PF struct with phy_types 479 * @ks: ethtool link ksettings struct to fill out 480 * 481 **/ 482static void i40e_phy_type_to_ethtool(struct i40e_pf *pf, 483 struct ethtool_link_ksettings *ks) 484{ 485 struct i40e_link_status *hw_link_info = &pf->hw.phy.link_info; 486 u64 phy_types = pf->hw.phy.phy_types; 487 488 ethtool_link_ksettings_zero_link_mode(ks, supported); 489 ethtool_link_ksettings_zero_link_mode(ks, advertising); 490 491 if (phy_types & I40E_CAP_PHY_TYPE_SGMII) { 492 ethtool_link_ksettings_add_link_mode(ks, supported, 493 1000baseT_Full); 494 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_1GB) 495 ethtool_link_ksettings_add_link_mode(ks, advertising, 496 1000baseT_Full); 497 if (pf->hw_features & I40E_HW_100M_SGMII_CAPABLE) { 498 ethtool_link_ksettings_add_link_mode(ks, supported, 499 100baseT_Full); 500 ethtool_link_ksettings_add_link_mode(ks, advertising, 501 100baseT_Full); 502 } 503 } 504 if (phy_types & I40E_CAP_PHY_TYPE_XAUI || 505 phy_types & I40E_CAP_PHY_TYPE_XFI || 506 phy_types & I40E_CAP_PHY_TYPE_SFI || 507 phy_types & I40E_CAP_PHY_TYPE_10GBASE_SFPP_CU || 508 phy_types & I40E_CAP_PHY_TYPE_10GBASE_AOC) { 509 ethtool_link_ksettings_add_link_mode(ks, supported, 510 10000baseT_Full); 511 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_10GB) 512 ethtool_link_ksettings_add_link_mode(ks, advertising, 513 10000baseT_Full); 514 } 515 if (phy_types & I40E_CAP_PHY_TYPE_10GBASE_T) { 516 ethtool_link_ksettings_add_link_mode(ks, supported, 517 10000baseT_Full); 518 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_10GB) 519 ethtool_link_ksettings_add_link_mode(ks, advertising, 520 10000baseT_Full); 521 } 522 if (phy_types & I40E_CAP_PHY_TYPE_2_5GBASE_T) { 523 ethtool_link_ksettings_add_link_mode(ks, supported, 524 2500baseT_Full); 525 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_2_5GB) 526 ethtool_link_ksettings_add_link_mode(ks, advertising, 527 2500baseT_Full); 528 } 529 if (phy_types & I40E_CAP_PHY_TYPE_5GBASE_T) { 530 ethtool_link_ksettings_add_link_mode(ks, supported, 531 5000baseT_Full); 532 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_5GB) 533 ethtool_link_ksettings_add_link_mode(ks, advertising, 534 5000baseT_Full); 535 } 536 if (phy_types & I40E_CAP_PHY_TYPE_XLAUI || 537 phy_types & I40E_CAP_PHY_TYPE_XLPPI || 538 phy_types & I40E_CAP_PHY_TYPE_40GBASE_AOC) 539 ethtool_link_ksettings_add_link_mode(ks, supported, 540 40000baseCR4_Full); 541 if (phy_types & I40E_CAP_PHY_TYPE_40GBASE_CR4_CU || 542 phy_types & I40E_CAP_PHY_TYPE_40GBASE_CR4) { 543 ethtool_link_ksettings_add_link_mode(ks, supported, 544 40000baseCR4_Full); 545 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_40GB) 546 ethtool_link_ksettings_add_link_mode(ks, advertising, 547 40000baseCR4_Full); 548 } 549 if (phy_types & I40E_CAP_PHY_TYPE_100BASE_TX) { 550 ethtool_link_ksettings_add_link_mode(ks, supported, 551 100baseT_Full); 552 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_100MB) 553 ethtool_link_ksettings_add_link_mode(ks, advertising, 554 100baseT_Full); 555 } 556 if (phy_types & I40E_CAP_PHY_TYPE_1000BASE_T) { 557 ethtool_link_ksettings_add_link_mode(ks, supported, 558 1000baseT_Full); 559 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_1GB) 560 ethtool_link_ksettings_add_link_mode(ks, advertising, 561 1000baseT_Full); 562 } 563 if (phy_types & I40E_CAP_PHY_TYPE_40GBASE_SR4) { 564 ethtool_link_ksettings_add_link_mode(ks, supported, 565 40000baseSR4_Full); 566 ethtool_link_ksettings_add_link_mode(ks, advertising, 567 40000baseSR4_Full); 568 } 569 if (phy_types & I40E_CAP_PHY_TYPE_40GBASE_LR4) { 570 ethtool_link_ksettings_add_link_mode(ks, supported, 571 40000baseLR4_Full); 572 ethtool_link_ksettings_add_link_mode(ks, advertising, 573 40000baseLR4_Full); 574 } 575 if (phy_types & I40E_CAP_PHY_TYPE_40GBASE_KR4) { 576 ethtool_link_ksettings_add_link_mode(ks, supported, 577 40000baseKR4_Full); 578 ethtool_link_ksettings_add_link_mode(ks, advertising, 579 40000baseKR4_Full); 580 } 581 if (phy_types & I40E_CAP_PHY_TYPE_20GBASE_KR2) { 582 ethtool_link_ksettings_add_link_mode(ks, supported, 583 20000baseKR2_Full); 584 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_20GB) 585 ethtool_link_ksettings_add_link_mode(ks, advertising, 586 20000baseKR2_Full); 587 } 588 if (phy_types & I40E_CAP_PHY_TYPE_10GBASE_KX4) { 589 ethtool_link_ksettings_add_link_mode(ks, supported, 590 10000baseKX4_Full); 591 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_10GB) 592 ethtool_link_ksettings_add_link_mode(ks, advertising, 593 10000baseKX4_Full); 594 } 595 if (phy_types & I40E_CAP_PHY_TYPE_10GBASE_KR && 596 !(pf->hw_features & I40E_HW_HAVE_CRT_RETIMER)) { 597 ethtool_link_ksettings_add_link_mode(ks, supported, 598 10000baseKR_Full); 599 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_10GB) 600 ethtool_link_ksettings_add_link_mode(ks, advertising, 601 10000baseKR_Full); 602 } 603 if (phy_types & I40E_CAP_PHY_TYPE_1000BASE_KX && 604 !(pf->hw_features & I40E_HW_HAVE_CRT_RETIMER)) { 605 ethtool_link_ksettings_add_link_mode(ks, supported, 606 1000baseKX_Full); 607 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_1GB) 608 ethtool_link_ksettings_add_link_mode(ks, advertising, 609 1000baseKX_Full); 610 } 611 /* need to add 25G PHY types */ 612 if (phy_types & I40E_CAP_PHY_TYPE_25GBASE_KR) { 613 ethtool_link_ksettings_add_link_mode(ks, supported, 614 25000baseKR_Full); 615 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_25GB) 616 ethtool_link_ksettings_add_link_mode(ks, advertising, 617 25000baseKR_Full); 618 } 619 if (phy_types & I40E_CAP_PHY_TYPE_25GBASE_CR) { 620 ethtool_link_ksettings_add_link_mode(ks, supported, 621 25000baseCR_Full); 622 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_25GB) 623 ethtool_link_ksettings_add_link_mode(ks, advertising, 624 25000baseCR_Full); 625 } 626 if (phy_types & I40E_CAP_PHY_TYPE_25GBASE_SR || 627 phy_types & I40E_CAP_PHY_TYPE_25GBASE_LR) { 628 ethtool_link_ksettings_add_link_mode(ks, supported, 629 25000baseSR_Full); 630 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_25GB) 631 ethtool_link_ksettings_add_link_mode(ks, advertising, 632 25000baseSR_Full); 633 } 634 if (phy_types & I40E_CAP_PHY_TYPE_25GBASE_AOC || 635 phy_types & I40E_CAP_PHY_TYPE_25GBASE_ACC) { 636 ethtool_link_ksettings_add_link_mode(ks, supported, 637 25000baseCR_Full); 638 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_25GB) 639 ethtool_link_ksettings_add_link_mode(ks, advertising, 640 25000baseCR_Full); 641 } 642 if (phy_types & I40E_CAP_PHY_TYPE_25GBASE_KR || 643 phy_types & I40E_CAP_PHY_TYPE_25GBASE_CR || 644 phy_types & I40E_CAP_PHY_TYPE_25GBASE_SR || 645 phy_types & I40E_CAP_PHY_TYPE_25GBASE_LR || 646 phy_types & I40E_CAP_PHY_TYPE_25GBASE_AOC || 647 phy_types & I40E_CAP_PHY_TYPE_25GBASE_ACC) { 648 ethtool_link_ksettings_add_link_mode(ks, supported, FEC_NONE); 649 ethtool_link_ksettings_add_link_mode(ks, supported, FEC_RS); 650 ethtool_link_ksettings_add_link_mode(ks, supported, FEC_BASER); 651 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_25GB) { 652 ethtool_link_ksettings_add_link_mode(ks, advertising, 653 FEC_NONE); 654 ethtool_link_ksettings_add_link_mode(ks, advertising, 655 FEC_RS); 656 ethtool_link_ksettings_add_link_mode(ks, advertising, 657 FEC_BASER); 658 } 659 } 660 /* need to add new 10G PHY types */ 661 if (phy_types & I40E_CAP_PHY_TYPE_10GBASE_CR1 || 662 phy_types & I40E_CAP_PHY_TYPE_10GBASE_CR1_CU) { 663 ethtool_link_ksettings_add_link_mode(ks, supported, 664 10000baseCR_Full); 665 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_10GB) 666 ethtool_link_ksettings_add_link_mode(ks, advertising, 667 10000baseCR_Full); 668 } 669 if (phy_types & I40E_CAP_PHY_TYPE_10GBASE_SR) { 670 ethtool_link_ksettings_add_link_mode(ks, supported, 671 10000baseSR_Full); 672 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_10GB) 673 ethtool_link_ksettings_add_link_mode(ks, advertising, 674 10000baseSR_Full); 675 } 676 if (phy_types & I40E_CAP_PHY_TYPE_10GBASE_LR) { 677 ethtool_link_ksettings_add_link_mode(ks, supported, 678 10000baseLR_Full); 679 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_10GB) 680 ethtool_link_ksettings_add_link_mode(ks, advertising, 681 10000baseLR_Full); 682 } 683 if (phy_types & I40E_CAP_PHY_TYPE_1000BASE_SX || 684 phy_types & I40E_CAP_PHY_TYPE_1000BASE_LX || 685 phy_types & I40E_CAP_PHY_TYPE_1000BASE_T_OPTICAL) { 686 ethtool_link_ksettings_add_link_mode(ks, supported, 687 1000baseX_Full); 688 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_1GB) 689 ethtool_link_ksettings_add_link_mode(ks, advertising, 690 1000baseX_Full); 691 } 692 /* Autoneg PHY types */ 693 if (phy_types & I40E_CAP_PHY_TYPE_SGMII || 694 phy_types & I40E_CAP_PHY_TYPE_40GBASE_KR4 || 695 phy_types & I40E_CAP_PHY_TYPE_40GBASE_CR4_CU || 696 phy_types & I40E_CAP_PHY_TYPE_40GBASE_CR4 || 697 phy_types & I40E_CAP_PHY_TYPE_25GBASE_SR || 698 phy_types & I40E_CAP_PHY_TYPE_25GBASE_LR || 699 phy_types & I40E_CAP_PHY_TYPE_25GBASE_KR || 700 phy_types & I40E_CAP_PHY_TYPE_25GBASE_CR || 701 phy_types & I40E_CAP_PHY_TYPE_20GBASE_KR2 || 702 phy_types & I40E_CAP_PHY_TYPE_10GBASE_SR || 703 phy_types & I40E_CAP_PHY_TYPE_10GBASE_LR || 704 phy_types & I40E_CAP_PHY_TYPE_10GBASE_KX4 || 705 phy_types & I40E_CAP_PHY_TYPE_10GBASE_KR || 706 phy_types & I40E_CAP_PHY_TYPE_10GBASE_CR1_CU || 707 phy_types & I40E_CAP_PHY_TYPE_10GBASE_CR1 || 708 phy_types & I40E_CAP_PHY_TYPE_10GBASE_T || 709 phy_types & I40E_CAP_PHY_TYPE_5GBASE_T || 710 phy_types & I40E_CAP_PHY_TYPE_2_5GBASE_T || 711 phy_types & I40E_CAP_PHY_TYPE_1000BASE_T_OPTICAL || 712 phy_types & I40E_CAP_PHY_TYPE_1000BASE_T || 713 phy_types & I40E_CAP_PHY_TYPE_1000BASE_SX || 714 phy_types & I40E_CAP_PHY_TYPE_1000BASE_LX || 715 phy_types & I40E_CAP_PHY_TYPE_1000BASE_KX || 716 phy_types & I40E_CAP_PHY_TYPE_100BASE_TX) { 717 ethtool_link_ksettings_add_link_mode(ks, supported, 718 Autoneg); 719 ethtool_link_ksettings_add_link_mode(ks, advertising, 720 Autoneg); 721 } 722} 723 724/** 725 * i40e_get_settings_link_up_fec - Get the FEC mode encoding from mask 726 * @req_fec_info: mask request FEC info 727 * @ks: ethtool ksettings to fill in 728 **/ 729static void i40e_get_settings_link_up_fec(u8 req_fec_info, 730 struct ethtool_link_ksettings *ks) 731{ 732 ethtool_link_ksettings_add_link_mode(ks, supported, FEC_NONE); 733 ethtool_link_ksettings_add_link_mode(ks, supported, FEC_RS); 734 ethtool_link_ksettings_add_link_mode(ks, supported, FEC_BASER); 735 736 if ((I40E_AQ_SET_FEC_REQUEST_RS & req_fec_info) && 737 (I40E_AQ_SET_FEC_REQUEST_KR & req_fec_info)) { 738 ethtool_link_ksettings_add_link_mode(ks, advertising, 739 FEC_NONE); 740 ethtool_link_ksettings_add_link_mode(ks, advertising, 741 FEC_BASER); 742 ethtool_link_ksettings_add_link_mode(ks, advertising, FEC_RS); 743 } else if (I40E_AQ_SET_FEC_REQUEST_RS & req_fec_info) { 744 ethtool_link_ksettings_add_link_mode(ks, advertising, FEC_RS); 745 } else if (I40E_AQ_SET_FEC_REQUEST_KR & req_fec_info) { 746 ethtool_link_ksettings_add_link_mode(ks, advertising, 747 FEC_BASER); 748 } else { 749 ethtool_link_ksettings_add_link_mode(ks, advertising, 750 FEC_NONE); 751 } 752} 753 754/** 755 * i40e_get_settings_link_up - Get the Link settings for when link is up 756 * @hw: hw structure 757 * @ks: ethtool ksettings to fill in 758 * @netdev: network interface device structure 759 * @pf: pointer to physical function struct 760 **/ 761static void i40e_get_settings_link_up(struct i40e_hw *hw, 762 struct ethtool_link_ksettings *ks, 763 struct net_device *netdev, 764 struct i40e_pf *pf) 765{ 766 struct i40e_link_status *hw_link_info = &hw->phy.link_info; 767 struct ethtool_link_ksettings cap_ksettings; 768 u32 link_speed = hw_link_info->link_speed; 769 770 /* Initialize supported and advertised settings based on phy settings */ 771 switch (hw_link_info->phy_type) { 772 case I40E_PHY_TYPE_40GBASE_CR4: 773 case I40E_PHY_TYPE_40GBASE_CR4_CU: 774 ethtool_link_ksettings_add_link_mode(ks, supported, Autoneg); 775 ethtool_link_ksettings_add_link_mode(ks, supported, 776 40000baseCR4_Full); 777 ethtool_link_ksettings_add_link_mode(ks, advertising, Autoneg); 778 ethtool_link_ksettings_add_link_mode(ks, advertising, 779 40000baseCR4_Full); 780 break; 781 case I40E_PHY_TYPE_XLAUI: 782 case I40E_PHY_TYPE_XLPPI: 783 case I40E_PHY_TYPE_40GBASE_AOC: 784 ethtool_link_ksettings_add_link_mode(ks, supported, 785 40000baseCR4_Full); 786 ethtool_link_ksettings_add_link_mode(ks, advertising, 787 40000baseCR4_Full); 788 break; 789 case I40E_PHY_TYPE_40GBASE_SR4: 790 ethtool_link_ksettings_add_link_mode(ks, supported, 791 40000baseSR4_Full); 792 ethtool_link_ksettings_add_link_mode(ks, advertising, 793 40000baseSR4_Full); 794 break; 795 case I40E_PHY_TYPE_40GBASE_LR4: 796 ethtool_link_ksettings_add_link_mode(ks, supported, 797 40000baseLR4_Full); 798 ethtool_link_ksettings_add_link_mode(ks, advertising, 799 40000baseLR4_Full); 800 break; 801 case I40E_PHY_TYPE_25GBASE_SR: 802 case I40E_PHY_TYPE_25GBASE_LR: 803 case I40E_PHY_TYPE_10GBASE_SR: 804 case I40E_PHY_TYPE_10GBASE_LR: 805 case I40E_PHY_TYPE_1000BASE_SX: 806 case I40E_PHY_TYPE_1000BASE_LX: 807 ethtool_link_ksettings_add_link_mode(ks, supported, Autoneg); 808 ethtool_link_ksettings_add_link_mode(ks, advertising, Autoneg); 809 ethtool_link_ksettings_add_link_mode(ks, supported, 810 25000baseSR_Full); 811 ethtool_link_ksettings_add_link_mode(ks, advertising, 812 25000baseSR_Full); 813 i40e_get_settings_link_up_fec(hw_link_info->req_fec_info, ks); 814 ethtool_link_ksettings_add_link_mode(ks, supported, 815 10000baseSR_Full); 816 ethtool_link_ksettings_add_link_mode(ks, advertising, 817 10000baseSR_Full); 818 ethtool_link_ksettings_add_link_mode(ks, supported, 819 10000baseLR_Full); 820 ethtool_link_ksettings_add_link_mode(ks, advertising, 821 10000baseLR_Full); 822 ethtool_link_ksettings_add_link_mode(ks, supported, 823 1000baseX_Full); 824 ethtool_link_ksettings_add_link_mode(ks, advertising, 825 1000baseX_Full); 826 ethtool_link_ksettings_add_link_mode(ks, supported, 827 10000baseT_Full); 828 if (hw_link_info->module_type[2] & 829 I40E_MODULE_TYPE_1000BASE_SX || 830 hw_link_info->module_type[2] & 831 I40E_MODULE_TYPE_1000BASE_LX) { 832 ethtool_link_ksettings_add_link_mode(ks, supported, 833 1000baseT_Full); 834 if (hw_link_info->requested_speeds & 835 I40E_LINK_SPEED_1GB) 836 ethtool_link_ksettings_add_link_mode( 837 ks, advertising, 1000baseT_Full); 838 } 839 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_10GB) 840 ethtool_link_ksettings_add_link_mode(ks, advertising, 841 10000baseT_Full); 842 break; 843 case I40E_PHY_TYPE_10GBASE_T: 844 case I40E_PHY_TYPE_5GBASE_T_LINK_STATUS: 845 case I40E_PHY_TYPE_2_5GBASE_T_LINK_STATUS: 846 case I40E_PHY_TYPE_1000BASE_T: 847 case I40E_PHY_TYPE_100BASE_TX: 848 ethtool_link_ksettings_add_link_mode(ks, supported, Autoneg); 849 ethtool_link_ksettings_add_link_mode(ks, supported, 850 10000baseT_Full); 851 ethtool_link_ksettings_add_link_mode(ks, supported, 852 5000baseT_Full); 853 ethtool_link_ksettings_add_link_mode(ks, supported, 854 2500baseT_Full); 855 ethtool_link_ksettings_add_link_mode(ks, supported, 856 1000baseT_Full); 857 ethtool_link_ksettings_add_link_mode(ks, supported, 858 100baseT_Full); 859 ethtool_link_ksettings_add_link_mode(ks, advertising, Autoneg); 860 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_10GB) 861 ethtool_link_ksettings_add_link_mode(ks, advertising, 862 10000baseT_Full); 863 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_5GB) 864 ethtool_link_ksettings_add_link_mode(ks, advertising, 865 5000baseT_Full); 866 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_2_5GB) 867 ethtool_link_ksettings_add_link_mode(ks, advertising, 868 2500baseT_Full); 869 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_1GB) 870 ethtool_link_ksettings_add_link_mode(ks, advertising, 871 1000baseT_Full); 872 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_100MB) 873 ethtool_link_ksettings_add_link_mode(ks, advertising, 874 100baseT_Full); 875 break; 876 case I40E_PHY_TYPE_1000BASE_T_OPTICAL: 877 ethtool_link_ksettings_add_link_mode(ks, supported, Autoneg); 878 ethtool_link_ksettings_add_link_mode(ks, supported, 879 1000baseT_Full); 880 ethtool_link_ksettings_add_link_mode(ks, advertising, Autoneg); 881 ethtool_link_ksettings_add_link_mode(ks, advertising, 882 1000baseT_Full); 883 break; 884 case I40E_PHY_TYPE_10GBASE_CR1_CU: 885 case I40E_PHY_TYPE_10GBASE_CR1: 886 ethtool_link_ksettings_add_link_mode(ks, supported, Autoneg); 887 ethtool_link_ksettings_add_link_mode(ks, supported, 888 10000baseT_Full); 889 ethtool_link_ksettings_add_link_mode(ks, advertising, Autoneg); 890 ethtool_link_ksettings_add_link_mode(ks, advertising, 891 10000baseT_Full); 892 break; 893 case I40E_PHY_TYPE_XAUI: 894 case I40E_PHY_TYPE_XFI: 895 case I40E_PHY_TYPE_SFI: 896 case I40E_PHY_TYPE_10GBASE_SFPP_CU: 897 case I40E_PHY_TYPE_10GBASE_AOC: 898 ethtool_link_ksettings_add_link_mode(ks, supported, 899 10000baseT_Full); 900 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_10GB) 901 ethtool_link_ksettings_add_link_mode(ks, advertising, 902 10000baseT_Full); 903 i40e_get_settings_link_up_fec(hw_link_info->req_fec_info, ks); 904 break; 905 case I40E_PHY_TYPE_SGMII: 906 ethtool_link_ksettings_add_link_mode(ks, supported, Autoneg); 907 ethtool_link_ksettings_add_link_mode(ks, supported, 908 1000baseT_Full); 909 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_1GB) 910 ethtool_link_ksettings_add_link_mode(ks, advertising, 911 1000baseT_Full); 912 if (pf->hw_features & I40E_HW_100M_SGMII_CAPABLE) { 913 ethtool_link_ksettings_add_link_mode(ks, supported, 914 100baseT_Full); 915 if (hw_link_info->requested_speeds & 916 I40E_LINK_SPEED_100MB) 917 ethtool_link_ksettings_add_link_mode( 918 ks, advertising, 100baseT_Full); 919 } 920 break; 921 case I40E_PHY_TYPE_40GBASE_KR4: 922 case I40E_PHY_TYPE_25GBASE_KR: 923 case I40E_PHY_TYPE_20GBASE_KR2: 924 case I40E_PHY_TYPE_10GBASE_KR: 925 case I40E_PHY_TYPE_10GBASE_KX4: 926 case I40E_PHY_TYPE_1000BASE_KX: 927 ethtool_link_ksettings_add_link_mode(ks, supported, 928 40000baseKR4_Full); 929 ethtool_link_ksettings_add_link_mode(ks, supported, 930 25000baseKR_Full); 931 ethtool_link_ksettings_add_link_mode(ks, supported, 932 20000baseKR2_Full); 933 ethtool_link_ksettings_add_link_mode(ks, supported, 934 10000baseKR_Full); 935 ethtool_link_ksettings_add_link_mode(ks, supported, 936 10000baseKX4_Full); 937 ethtool_link_ksettings_add_link_mode(ks, supported, 938 1000baseKX_Full); 939 ethtool_link_ksettings_add_link_mode(ks, supported, Autoneg); 940 ethtool_link_ksettings_add_link_mode(ks, advertising, 941 40000baseKR4_Full); 942 ethtool_link_ksettings_add_link_mode(ks, advertising, 943 25000baseKR_Full); 944 i40e_get_settings_link_up_fec(hw_link_info->req_fec_info, ks); 945 ethtool_link_ksettings_add_link_mode(ks, advertising, 946 20000baseKR2_Full); 947 ethtool_link_ksettings_add_link_mode(ks, advertising, 948 10000baseKR_Full); 949 ethtool_link_ksettings_add_link_mode(ks, advertising, 950 10000baseKX4_Full); 951 ethtool_link_ksettings_add_link_mode(ks, advertising, 952 1000baseKX_Full); 953 ethtool_link_ksettings_add_link_mode(ks, advertising, Autoneg); 954 break; 955 case I40E_PHY_TYPE_25GBASE_CR: 956 ethtool_link_ksettings_add_link_mode(ks, supported, Autoneg); 957 ethtool_link_ksettings_add_link_mode(ks, advertising, Autoneg); 958 ethtool_link_ksettings_add_link_mode(ks, supported, 959 25000baseCR_Full); 960 ethtool_link_ksettings_add_link_mode(ks, advertising, 961 25000baseCR_Full); 962 i40e_get_settings_link_up_fec(hw_link_info->req_fec_info, ks); 963 964 break; 965 case I40E_PHY_TYPE_25GBASE_AOC: 966 case I40E_PHY_TYPE_25GBASE_ACC: 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 ethtool_link_ksettings_add_link_mode(ks, supported, 976 10000baseCR_Full); 977 ethtool_link_ksettings_add_link_mode(ks, advertising, 978 10000baseCR_Full); 979 break; 980 default: 981 /* if we got here and link is up something bad is afoot */ 982 netdev_info(netdev, 983 "WARNING: Link is up but PHY type 0x%x is not recognized, or incorrect cable is in use\n", 984 hw_link_info->phy_type); 985 } 986 987 /* Now that we've worked out everything that could be supported by the 988 * current PHY type, get what is supported by the NVM and intersect 989 * them to get what is truly supported 990 */ 991 memset(&cap_ksettings, 0, sizeof(struct ethtool_link_ksettings)); 992 i40e_phy_type_to_ethtool(pf, &cap_ksettings); 993 ethtool_intersect_link_masks(ks, &cap_ksettings); 994 995 /* Set speed and duplex */ 996 switch (link_speed) { 997 case I40E_LINK_SPEED_40GB: 998 ks->base.speed = SPEED_40000; 999 break; 1000 case I40E_LINK_SPEED_25GB: 1001 ks->base.speed = SPEED_25000; 1002 break; 1003 case I40E_LINK_SPEED_20GB: 1004 ks->base.speed = SPEED_20000; 1005 break; 1006 case I40E_LINK_SPEED_10GB: 1007 ks->base.speed = SPEED_10000; 1008 break; 1009 case I40E_LINK_SPEED_5GB: 1010 ks->base.speed = SPEED_5000; 1011 break; 1012 case I40E_LINK_SPEED_2_5GB: 1013 ks->base.speed = SPEED_2500; 1014 break; 1015 case I40E_LINK_SPEED_1GB: 1016 ks->base.speed = SPEED_1000; 1017 break; 1018 case I40E_LINK_SPEED_100MB: 1019 ks->base.speed = SPEED_100; 1020 break; 1021 default: 1022 ks->base.speed = SPEED_UNKNOWN; 1023 break; 1024 } 1025 ks->base.duplex = DUPLEX_FULL; 1026} 1027 1028/** 1029 * i40e_get_settings_link_down - Get the Link settings for when link is down 1030 * @hw: hw structure 1031 * @ks: ethtool ksettings to fill in 1032 * @pf: pointer to physical function struct 1033 * 1034 * Reports link settings that can be determined when link is down 1035 **/ 1036static void i40e_get_settings_link_down(struct i40e_hw *hw, 1037 struct ethtool_link_ksettings *ks, 1038 struct i40e_pf *pf) 1039{ 1040 /* link is down and the driver needs to fall back on 1041 * supported phy types to figure out what info to display 1042 */ 1043 i40e_phy_type_to_ethtool(pf, ks); 1044 1045 /* With no link speed and duplex are unknown */ 1046 ks->base.speed = SPEED_UNKNOWN; 1047 ks->base.duplex = DUPLEX_UNKNOWN; 1048} 1049 1050/** 1051 * i40e_get_link_ksettings - Get Link Speed and Duplex settings 1052 * @netdev: network interface device structure 1053 * @ks: ethtool ksettings 1054 * 1055 * Reports speed/duplex settings based on media_type 1056 **/ 1057static int i40e_get_link_ksettings(struct net_device *netdev, 1058 struct ethtool_link_ksettings *ks) 1059{ 1060 struct i40e_netdev_priv *np = netdev_priv(netdev); 1061 struct i40e_pf *pf = np->vsi->back; 1062 struct i40e_hw *hw = &pf->hw; 1063 struct i40e_link_status *hw_link_info = &hw->phy.link_info; 1064 bool link_up = hw_link_info->link_info & I40E_AQ_LINK_UP; 1065 1066 ethtool_link_ksettings_zero_link_mode(ks, supported); 1067 ethtool_link_ksettings_zero_link_mode(ks, advertising); 1068 1069 if (link_up) 1070 i40e_get_settings_link_up(hw, ks, netdev, pf); 1071 else 1072 i40e_get_settings_link_down(hw, ks, pf); 1073 1074 /* Now set the settings that don't rely on link being up/down */ 1075 /* Set autoneg settings */ 1076 ks->base.autoneg = ((hw_link_info->an_info & I40E_AQ_AN_COMPLETED) ? 1077 AUTONEG_ENABLE : AUTONEG_DISABLE); 1078 1079 /* Set media type settings */ 1080 switch (hw->phy.media_type) { 1081 case I40E_MEDIA_TYPE_BACKPLANE: 1082 ethtool_link_ksettings_add_link_mode(ks, supported, Autoneg); 1083 ethtool_link_ksettings_add_link_mode(ks, supported, Backplane); 1084 ethtool_link_ksettings_add_link_mode(ks, advertising, Autoneg); 1085 ethtool_link_ksettings_add_link_mode(ks, advertising, 1086 Backplane); 1087 ks->base.port = PORT_NONE; 1088 break; 1089 case I40E_MEDIA_TYPE_BASET: 1090 ethtool_link_ksettings_add_link_mode(ks, supported, TP); 1091 ethtool_link_ksettings_add_link_mode(ks, advertising, TP); 1092 ks->base.port = PORT_TP; 1093 break; 1094 case I40E_MEDIA_TYPE_DA: 1095 case I40E_MEDIA_TYPE_CX4: 1096 ethtool_link_ksettings_add_link_mode(ks, supported, FIBRE); 1097 ethtool_link_ksettings_add_link_mode(ks, advertising, FIBRE); 1098 ks->base.port = PORT_DA; 1099 break; 1100 case I40E_MEDIA_TYPE_FIBER: 1101 ethtool_link_ksettings_add_link_mode(ks, supported, FIBRE); 1102 ethtool_link_ksettings_add_link_mode(ks, advertising, FIBRE); 1103 ks->base.port = PORT_FIBRE; 1104 break; 1105 case I40E_MEDIA_TYPE_UNKNOWN: 1106 default: 1107 ks->base.port = PORT_OTHER; 1108 break; 1109 } 1110 1111 /* Set flow control settings */ 1112 ethtool_link_ksettings_add_link_mode(ks, supported, Pause); 1113 ethtool_link_ksettings_add_link_mode(ks, supported, Asym_Pause); 1114 1115 switch (hw->fc.requested_mode) { 1116 case I40E_FC_FULL: 1117 ethtool_link_ksettings_add_link_mode(ks, advertising, Pause); 1118 break; 1119 case I40E_FC_TX_PAUSE: 1120 ethtool_link_ksettings_add_link_mode(ks, advertising, 1121 Asym_Pause); 1122 break; 1123 case I40E_FC_RX_PAUSE: 1124 ethtool_link_ksettings_add_link_mode(ks, advertising, Pause); 1125 ethtool_link_ksettings_add_link_mode(ks, advertising, 1126 Asym_Pause); 1127 break; 1128 default: 1129 ethtool_link_ksettings_del_link_mode(ks, advertising, Pause); 1130 ethtool_link_ksettings_del_link_mode(ks, advertising, 1131 Asym_Pause); 1132 break; 1133 } 1134 1135 return 0; 1136} 1137 1138/** 1139 * i40e_set_link_ksettings - Set Speed and Duplex 1140 * @netdev: network interface device structure 1141 * @ks: ethtool ksettings 1142 * 1143 * Set speed/duplex per media_types advertised/forced 1144 **/ 1145static int i40e_set_link_ksettings(struct net_device *netdev, 1146 const struct ethtool_link_ksettings *ks) 1147{ 1148 struct i40e_netdev_priv *np = netdev_priv(netdev); 1149 struct i40e_aq_get_phy_abilities_resp abilities; 1150 struct ethtool_link_ksettings safe_ks; 1151 struct ethtool_link_ksettings copy_ks; 1152 struct i40e_aq_set_phy_config config; 1153 struct i40e_pf *pf = np->vsi->back; 1154 struct i40e_vsi *vsi = np->vsi; 1155 struct i40e_hw *hw = &pf->hw; 1156 bool autoneg_changed = false; 1157 i40e_status status = 0; 1158 int timeout = 50; 1159 int err = 0; 1160 u8 autoneg; 1161 1162 /* Changing port settings is not supported if this isn't the 1163 * port's controlling PF 1164 */ 1165 if (hw->partition_id != 1) { 1166 i40e_partition_setting_complaint(pf); 1167 return -EOPNOTSUPP; 1168 } 1169 if (vsi != pf->vsi[pf->lan_vsi]) 1170 return -EOPNOTSUPP; 1171 if (hw->phy.media_type != I40E_MEDIA_TYPE_BASET && 1172 hw->phy.media_type != I40E_MEDIA_TYPE_FIBER && 1173 hw->phy.media_type != I40E_MEDIA_TYPE_BACKPLANE && 1174 hw->phy.media_type != I40E_MEDIA_TYPE_DA && 1175 hw->phy.link_info.link_info & I40E_AQ_LINK_UP) 1176 return -EOPNOTSUPP; 1177 if (hw->device_id == I40E_DEV_ID_KX_B || 1178 hw->device_id == I40E_DEV_ID_KX_C || 1179 hw->device_id == I40E_DEV_ID_20G_KR2 || 1180 hw->device_id == I40E_DEV_ID_20G_KR2_A || 1181 hw->device_id == I40E_DEV_ID_25G_B || 1182 hw->device_id == I40E_DEV_ID_KX_X722) { 1183 netdev_info(netdev, "Changing settings is not supported on backplane.\n"); 1184 return -EOPNOTSUPP; 1185 } 1186 1187 /* copy the ksettings to copy_ks to avoid modifying the origin */ 1188 memcpy(©_ks, ks, sizeof(struct ethtool_link_ksettings)); 1189 1190 /* save autoneg out of ksettings */ 1191 autoneg = copy_ks.base.autoneg; 1192 1193 /* get our own copy of the bits to check against */ 1194 memset(&safe_ks, 0, sizeof(struct ethtool_link_ksettings)); 1195 safe_ks.base.cmd = copy_ks.base.cmd; 1196 safe_ks.base.link_mode_masks_nwords = 1197 copy_ks.base.link_mode_masks_nwords; 1198 i40e_get_link_ksettings(netdev, &safe_ks); 1199 1200 /* Get link modes supported by hardware and check against modes 1201 * requested by the user. Return an error if unsupported mode was set. 1202 */ 1203 if (!bitmap_subset(copy_ks.link_modes.advertising, 1204 safe_ks.link_modes.supported, 1205 __ETHTOOL_LINK_MODE_MASK_NBITS)) 1206 return -EINVAL; 1207 1208 /* set autoneg back to what it currently is */ 1209 copy_ks.base.autoneg = safe_ks.base.autoneg; 1210 1211 /* If copy_ks.base and safe_ks.base are not the same now, then they are 1212 * trying to set something that we do not support. 1213 */ 1214 if (memcmp(©_ks.base, &safe_ks.base, 1215 sizeof(struct ethtool_link_settings))) 1216 return -EOPNOTSUPP; 1217 1218 while (test_and_set_bit(__I40E_CONFIG_BUSY, pf->state)) { 1219 timeout--; 1220 if (!timeout) 1221 return -EBUSY; 1222 usleep_range(1000, 2000); 1223 } 1224 1225 /* Get the current phy config */ 1226 status = i40e_aq_get_phy_capabilities(hw, false, false, &abilities, 1227 NULL); 1228 if (status) { 1229 err = -EAGAIN; 1230 goto done; 1231 } 1232 1233 /* Copy abilities to config in case autoneg is not 1234 * set below 1235 */ 1236 memset(&config, 0, sizeof(struct i40e_aq_set_phy_config)); 1237 config.abilities = abilities.abilities; 1238 1239 /* Check autoneg */ 1240 if (autoneg == AUTONEG_ENABLE) { 1241 /* If autoneg was not already enabled */ 1242 if (!(hw->phy.link_info.an_info & I40E_AQ_AN_COMPLETED)) { 1243 /* If autoneg is not supported, return error */ 1244 if (!ethtool_link_ksettings_test_link_mode(&safe_ks, 1245 supported, 1246 Autoneg)) { 1247 netdev_info(netdev, "Autoneg not supported on this phy\n"); 1248 err = -EINVAL; 1249 goto done; 1250 } 1251 /* Autoneg is allowed to change */ 1252 config.abilities = abilities.abilities | 1253 I40E_AQ_PHY_ENABLE_AN; 1254 autoneg_changed = true; 1255 } 1256 } else { 1257 /* If autoneg is currently enabled */ 1258 if (hw->phy.link_info.an_info & I40E_AQ_AN_COMPLETED) { 1259 /* If autoneg is supported 10GBASE_T is the only PHY 1260 * that can disable it, so otherwise return error 1261 */ 1262 if (ethtool_link_ksettings_test_link_mode(&safe_ks, 1263 supported, 1264 Autoneg) && 1265 hw->phy.media_type != I40E_MEDIA_TYPE_BASET) { 1266 netdev_info(netdev, "Autoneg cannot be disabled on this phy\n"); 1267 err = -EINVAL; 1268 goto done; 1269 } 1270 /* Autoneg is allowed to change */ 1271 config.abilities = abilities.abilities & 1272 ~I40E_AQ_PHY_ENABLE_AN; 1273 autoneg_changed = true; 1274 } 1275 } 1276 1277 if (ethtool_link_ksettings_test_link_mode(ks, advertising, 1278 100baseT_Full)) 1279 config.link_speed |= I40E_LINK_SPEED_100MB; 1280 if (ethtool_link_ksettings_test_link_mode(ks, advertising, 1281 1000baseT_Full) || 1282 ethtool_link_ksettings_test_link_mode(ks, advertising, 1283 1000baseX_Full) || 1284 ethtool_link_ksettings_test_link_mode(ks, advertising, 1285 1000baseKX_Full)) 1286 config.link_speed |= I40E_LINK_SPEED_1GB; 1287 if (ethtool_link_ksettings_test_link_mode(ks, advertising, 1288 10000baseT_Full) || 1289 ethtool_link_ksettings_test_link_mode(ks, advertising, 1290 10000baseKX4_Full) || 1291 ethtool_link_ksettings_test_link_mode(ks, advertising, 1292 10000baseKR_Full) || 1293 ethtool_link_ksettings_test_link_mode(ks, advertising, 1294 10000baseCR_Full) || 1295 ethtool_link_ksettings_test_link_mode(ks, advertising, 1296 10000baseSR_Full) || 1297 ethtool_link_ksettings_test_link_mode(ks, advertising, 1298 10000baseLR_Full)) 1299 config.link_speed |= I40E_LINK_SPEED_10GB; 1300 if (ethtool_link_ksettings_test_link_mode(ks, advertising, 1301 2500baseT_Full)) 1302 config.link_speed |= I40E_LINK_SPEED_2_5GB; 1303 if (ethtool_link_ksettings_test_link_mode(ks, advertising, 1304 5000baseT_Full)) 1305 config.link_speed |= I40E_LINK_SPEED_5GB; 1306 if (ethtool_link_ksettings_test_link_mode(ks, advertising, 1307 20000baseKR2_Full)) 1308 config.link_speed |= I40E_LINK_SPEED_20GB; 1309 if (ethtool_link_ksettings_test_link_mode(ks, advertising, 1310 25000baseCR_Full) || 1311 ethtool_link_ksettings_test_link_mode(ks, advertising, 1312 25000baseKR_Full) || 1313 ethtool_link_ksettings_test_link_mode(ks, advertising, 1314 25000baseSR_Full)) 1315 config.link_speed |= I40E_LINK_SPEED_25GB; 1316 if (ethtool_link_ksettings_test_link_mode(ks, advertising, 1317 40000baseKR4_Full) || 1318 ethtool_link_ksettings_test_link_mode(ks, advertising, 1319 40000baseCR4_Full) || 1320 ethtool_link_ksettings_test_link_mode(ks, advertising, 1321 40000baseSR4_Full) || 1322 ethtool_link_ksettings_test_link_mode(ks, advertising, 1323 40000baseLR4_Full)) 1324 config.link_speed |= I40E_LINK_SPEED_40GB; 1325 1326 /* If speed didn't get set, set it to what it currently is. 1327 * This is needed because if advertise is 0 (as it is when autoneg 1328 * is disabled) then speed won't get set. 1329 */ 1330 if (!config.link_speed) 1331 config.link_speed = abilities.link_speed; 1332 if (autoneg_changed || abilities.link_speed != config.link_speed) { 1333 /* copy over the rest of the abilities */ 1334 config.phy_type = abilities.phy_type; 1335 config.phy_type_ext = abilities.phy_type_ext; 1336 config.eee_capability = abilities.eee_capability; 1337 config.eeer = abilities.eeer_val; 1338 config.low_power_ctrl = abilities.d3_lpan; 1339 config.fec_config = abilities.fec_cfg_curr_mod_ext_info & 1340 I40E_AQ_PHY_FEC_CONFIG_MASK; 1341 1342 /* save the requested speeds */ 1343 hw->phy.link_info.requested_speeds = config.link_speed; 1344 /* set link and auto negotiation so changes take effect */ 1345 config.abilities |= I40E_AQ_PHY_ENABLE_ATOMIC_LINK; 1346 /* If link is up put link down */ 1347 if (hw->phy.link_info.link_info & I40E_AQ_LINK_UP) { 1348 /* Tell the OS link is going down, the link will go 1349 * back up when fw says it is ready asynchronously 1350 */ 1351 i40e_print_link_message(vsi, false); 1352 netif_carrier_off(netdev); 1353 netif_tx_stop_all_queues(netdev); 1354 } 1355 1356 /* make the aq call */ 1357 status = i40e_aq_set_phy_config(hw, &config, NULL); 1358 if (status) { 1359 netdev_info(netdev, 1360 "Set phy config failed, err %s aq_err %s\n", 1361 i40e_stat_str(hw, status), 1362 i40e_aq_str(hw, hw->aq.asq_last_status)); 1363 err = -EAGAIN; 1364 goto done; 1365 } 1366 1367 status = i40e_update_link_info(hw); 1368 if (status) 1369 netdev_dbg(netdev, 1370 "Updating link info failed with err %s aq_err %s\n", 1371 i40e_stat_str(hw, status), 1372 i40e_aq_str(hw, hw->aq.asq_last_status)); 1373 1374 } else { 1375 netdev_info(netdev, "Nothing changed, exiting without setting anything.\n"); 1376 } 1377 1378done: 1379 clear_bit(__I40E_CONFIG_BUSY, pf->state); 1380 1381 return err; 1382} 1383 1384static int i40e_set_fec_cfg(struct net_device *netdev, u8 fec_cfg) 1385{ 1386 struct i40e_netdev_priv *np = netdev_priv(netdev); 1387 struct i40e_aq_get_phy_abilities_resp abilities; 1388 struct i40e_pf *pf = np->vsi->back; 1389 struct i40e_hw *hw = &pf->hw; 1390 i40e_status status = 0; 1391 u32 flags = 0; 1392 int err = 0; 1393 1394 flags = READ_ONCE(pf->flags); 1395 i40e_set_fec_in_flags(fec_cfg, &flags); 1396 1397 /* Get the current phy config */ 1398 memset(&abilities, 0, sizeof(abilities)); 1399 status = i40e_aq_get_phy_capabilities(hw, false, false, &abilities, 1400 NULL); 1401 if (status) { 1402 err = -EAGAIN; 1403 goto done; 1404 } 1405 1406 if (abilities.fec_cfg_curr_mod_ext_info != fec_cfg) { 1407 struct i40e_aq_set_phy_config config; 1408 1409 memset(&config, 0, sizeof(config)); 1410 config.phy_type = abilities.phy_type; 1411 config.abilities = abilities.abilities | 1412 I40E_AQ_PHY_ENABLE_ATOMIC_LINK; 1413 config.phy_type_ext = abilities.phy_type_ext; 1414 config.link_speed = abilities.link_speed; 1415 config.eee_capability = abilities.eee_capability; 1416 config.eeer = abilities.eeer_val; 1417 config.low_power_ctrl = abilities.d3_lpan; 1418 config.fec_config = fec_cfg & I40E_AQ_PHY_FEC_CONFIG_MASK; 1419 status = i40e_aq_set_phy_config(hw, &config, NULL); 1420 if (status) { 1421 netdev_info(netdev, 1422 "Set phy config failed, err %s aq_err %s\n", 1423 i40e_stat_str(hw, status), 1424 i40e_aq_str(hw, hw->aq.asq_last_status)); 1425 err = -EAGAIN; 1426 goto done; 1427 } 1428 pf->flags = flags; 1429 status = i40e_update_link_info(hw); 1430 if (status) 1431 /* debug level message only due to relation to the link 1432 * itself rather than to the FEC settings 1433 * (e.g. no physical connection etc.) 1434 */ 1435 netdev_dbg(netdev, 1436 "Updating link info failed with err %s aq_err %s\n", 1437 i40e_stat_str(hw, status), 1438 i40e_aq_str(hw, hw->aq.asq_last_status)); 1439 } 1440 1441done: 1442 return err; 1443} 1444 1445static int i40e_get_fec_param(struct net_device *netdev, 1446 struct ethtool_fecparam *fecparam) 1447{ 1448 struct i40e_netdev_priv *np = netdev_priv(netdev); 1449 struct i40e_aq_get_phy_abilities_resp abilities; 1450 struct i40e_pf *pf = np->vsi->back; 1451 struct i40e_hw *hw = &pf->hw; 1452 i40e_status status = 0; 1453 int err = 0; 1454 u8 fec_cfg; 1455 1456 /* Get the current phy config */ 1457 memset(&abilities, 0, sizeof(abilities)); 1458 status = i40e_aq_get_phy_capabilities(hw, false, false, &abilities, 1459 NULL); 1460 if (status) { 1461 err = -EAGAIN; 1462 goto done; 1463 } 1464 1465 fecparam->fec = 0; 1466 fec_cfg = abilities.fec_cfg_curr_mod_ext_info; 1467 if (fec_cfg & I40E_AQ_SET_FEC_AUTO) 1468 fecparam->fec |= ETHTOOL_FEC_AUTO; 1469 else if (fec_cfg & (I40E_AQ_SET_FEC_REQUEST_RS | 1470 I40E_AQ_SET_FEC_ABILITY_RS)) 1471 fecparam->fec |= ETHTOOL_FEC_RS; 1472 else if (fec_cfg & (I40E_AQ_SET_FEC_REQUEST_KR | 1473 I40E_AQ_SET_FEC_ABILITY_KR)) 1474 fecparam->fec |= ETHTOOL_FEC_BASER; 1475 if (fec_cfg == 0) 1476 fecparam->fec |= ETHTOOL_FEC_OFF; 1477 1478 if (hw->phy.link_info.fec_info & I40E_AQ_CONFIG_FEC_KR_ENA) 1479 fecparam->active_fec = ETHTOOL_FEC_BASER; 1480 else if (hw->phy.link_info.fec_info & I40E_AQ_CONFIG_FEC_RS_ENA) 1481 fecparam->active_fec = ETHTOOL_FEC_RS; 1482 else 1483 fecparam->active_fec = ETHTOOL_FEC_OFF; 1484done: 1485 return err; 1486} 1487 1488static int i40e_set_fec_param(struct net_device *netdev, 1489 struct ethtool_fecparam *fecparam) 1490{ 1491 struct i40e_netdev_priv *np = netdev_priv(netdev); 1492 struct i40e_pf *pf = np->vsi->back; 1493 struct i40e_hw *hw = &pf->hw; 1494 u8 fec_cfg = 0; 1495 1496 if (hw->device_id != I40E_DEV_ID_25G_SFP28 && 1497 hw->device_id != I40E_DEV_ID_25G_B && 1498 hw->device_id != I40E_DEV_ID_KX_X722) 1499 return -EPERM; 1500 1501 if (hw->mac.type == I40E_MAC_X722 && 1502 !(hw->flags & I40E_HW_FLAG_X722_FEC_REQUEST_CAPABLE)) { 1503 netdev_err(netdev, "Setting FEC encoding not supported by firmware. Please update the NVM image.\n"); 1504 return -EOPNOTSUPP; 1505 } 1506 1507 switch (fecparam->fec) { 1508 case ETHTOOL_FEC_AUTO: 1509 fec_cfg = I40E_AQ_SET_FEC_AUTO; 1510 break; 1511 case ETHTOOL_FEC_RS: 1512 fec_cfg = (I40E_AQ_SET_FEC_REQUEST_RS | 1513 I40E_AQ_SET_FEC_ABILITY_RS); 1514 break; 1515 case ETHTOOL_FEC_BASER: 1516 fec_cfg = (I40E_AQ_SET_FEC_REQUEST_KR | 1517 I40E_AQ_SET_FEC_ABILITY_KR); 1518 break; 1519 case ETHTOOL_FEC_OFF: 1520 case ETHTOOL_FEC_NONE: 1521 fec_cfg = 0; 1522 break; 1523 default: 1524 dev_warn(&pf->pdev->dev, "Unsupported FEC mode: %d", 1525 fecparam->fec); 1526 return -EINVAL; 1527 } 1528 1529 return i40e_set_fec_cfg(netdev, fec_cfg); 1530} 1531 1532static int i40e_nway_reset(struct net_device *netdev) 1533{ 1534 /* restart autonegotiation */ 1535 struct i40e_netdev_priv *np = netdev_priv(netdev); 1536 struct i40e_pf *pf = np->vsi->back; 1537 struct i40e_hw *hw = &pf->hw; 1538 bool link_up = hw->phy.link_info.link_info & I40E_AQ_LINK_UP; 1539 i40e_status ret = 0; 1540 1541 ret = i40e_aq_set_link_restart_an(hw, link_up, NULL); 1542 if (ret) { 1543 netdev_info(netdev, "link restart failed, err %s aq_err %s\n", 1544 i40e_stat_str(hw, ret), 1545 i40e_aq_str(hw, hw->aq.asq_last_status)); 1546 return -EIO; 1547 } 1548 1549 return 0; 1550} 1551 1552/** 1553 * i40e_get_pauseparam - Get Flow Control status 1554 * @netdev: netdevice structure 1555 * @pause: buffer to return pause parameters 1556 * 1557 * Return tx/rx-pause status 1558 **/ 1559static void i40e_get_pauseparam(struct net_device *netdev, 1560 struct ethtool_pauseparam *pause) 1561{ 1562 struct i40e_netdev_priv *np = netdev_priv(netdev); 1563 struct i40e_pf *pf = np->vsi->back; 1564 struct i40e_hw *hw = &pf->hw; 1565 struct i40e_link_status *hw_link_info = &hw->phy.link_info; 1566 struct i40e_dcbx_config *dcbx_cfg = &hw->local_dcbx_config; 1567 1568 pause->autoneg = 1569 ((hw_link_info->an_info & I40E_AQ_AN_COMPLETED) ? 1570 AUTONEG_ENABLE : AUTONEG_DISABLE); 1571 1572 /* PFC enabled so report LFC as off */ 1573 if (dcbx_cfg->pfc.pfcenable) { 1574 pause->rx_pause = 0; 1575 pause->tx_pause = 0; 1576 return; 1577 } 1578 1579 if (hw->fc.current_mode == I40E_FC_RX_PAUSE) { 1580 pause->rx_pause = 1; 1581 } else if (hw->fc.current_mode == I40E_FC_TX_PAUSE) { 1582 pause->tx_pause = 1; 1583 } else if (hw->fc.current_mode == I40E_FC_FULL) { 1584 pause->rx_pause = 1; 1585 pause->tx_pause = 1; 1586 } 1587} 1588 1589/** 1590 * i40e_set_pauseparam - Set Flow Control parameter 1591 * @netdev: network interface device structure 1592 * @pause: return tx/rx flow control status 1593 **/ 1594static int i40e_set_pauseparam(struct net_device *netdev, 1595 struct ethtool_pauseparam *pause) 1596{ 1597 struct i40e_netdev_priv *np = netdev_priv(netdev); 1598 struct i40e_pf *pf = np->vsi->back; 1599 struct i40e_vsi *vsi = np->vsi; 1600 struct i40e_hw *hw = &pf->hw; 1601 struct i40e_link_status *hw_link_info = &hw->phy.link_info; 1602 struct i40e_dcbx_config *dcbx_cfg = &hw->local_dcbx_config; 1603 bool link_up = hw_link_info->link_info & I40E_AQ_LINK_UP; 1604 i40e_status status; 1605 u8 aq_failures; 1606 int err = 0; 1607 u32 is_an; 1608 1609 /* Changing the port's flow control is not supported if this isn't the 1610 * port's controlling PF 1611 */ 1612 if (hw->partition_id != 1) { 1613 i40e_partition_setting_complaint(pf); 1614 return -EOPNOTSUPP; 1615 } 1616 1617 if (vsi != pf->vsi[pf->lan_vsi]) 1618 return -EOPNOTSUPP; 1619 1620 is_an = hw_link_info->an_info & I40E_AQ_AN_COMPLETED; 1621 if (pause->autoneg != is_an) { 1622 netdev_info(netdev, "To change autoneg please use: ethtool -s <dev> autoneg <on|off>\n"); 1623 return -EOPNOTSUPP; 1624 } 1625 1626 /* If we have link and don't have autoneg */ 1627 if (!test_bit(__I40E_DOWN, pf->state) && !is_an) { 1628 /* Send message that it might not necessarily work*/ 1629 netdev_info(netdev, "Autoneg did not complete so changing settings may not result in an actual change.\n"); 1630 } 1631 1632 if (dcbx_cfg->pfc.pfcenable) { 1633 netdev_info(netdev, 1634 "Priority flow control enabled. Cannot set link flow control.\n"); 1635 return -EOPNOTSUPP; 1636 } 1637 1638 if (pause->rx_pause && pause->tx_pause) 1639 hw->fc.requested_mode = I40E_FC_FULL; 1640 else if (pause->rx_pause && !pause->tx_pause) 1641 hw->fc.requested_mode = I40E_FC_RX_PAUSE; 1642 else if (!pause->rx_pause && pause->tx_pause) 1643 hw->fc.requested_mode = I40E_FC_TX_PAUSE; 1644 else if (!pause->rx_pause && !pause->tx_pause) 1645 hw->fc.requested_mode = I40E_FC_NONE; 1646 else 1647 return -EINVAL; 1648 1649 /* Tell the OS link is going down, the link will go back up when fw 1650 * says it is ready asynchronously 1651 */ 1652 i40e_print_link_message(vsi, false); 1653 netif_carrier_off(netdev); 1654 netif_tx_stop_all_queues(netdev); 1655 1656 /* Set the fc mode and only restart an if link is up*/ 1657 status = i40e_set_fc(hw, &aq_failures, link_up); 1658 1659 if (aq_failures & I40E_SET_FC_AQ_FAIL_GET) { 1660 netdev_info(netdev, "Set fc failed on the get_phy_capabilities call with err %s aq_err %s\n", 1661 i40e_stat_str(hw, status), 1662 i40e_aq_str(hw, hw->aq.asq_last_status)); 1663 err = -EAGAIN; 1664 } 1665 if (aq_failures & I40E_SET_FC_AQ_FAIL_SET) { 1666 netdev_info(netdev, "Set fc failed on the set_phy_config call with err %s aq_err %s\n", 1667 i40e_stat_str(hw, status), 1668 i40e_aq_str(hw, hw->aq.asq_last_status)); 1669 err = -EAGAIN; 1670 } 1671 if (aq_failures & I40E_SET_FC_AQ_FAIL_UPDATE) { 1672 netdev_info(netdev, "Set fc failed on the get_link_info call with err %s aq_err %s\n", 1673 i40e_stat_str(hw, status), 1674 i40e_aq_str(hw, hw->aq.asq_last_status)); 1675 err = -EAGAIN; 1676 } 1677 1678 if (!test_bit(__I40E_DOWN, pf->state) && is_an) { 1679 /* Give it a little more time to try to come back */ 1680 msleep(75); 1681 if (!test_bit(__I40E_DOWN, pf->state)) 1682 return i40e_nway_reset(netdev); 1683 } 1684 1685 return err; 1686} 1687 1688static u32 i40e_get_msglevel(struct net_device *netdev) 1689{ 1690 struct i40e_netdev_priv *np = netdev_priv(netdev); 1691 struct i40e_pf *pf = np->vsi->back; 1692 u32 debug_mask = pf->hw.debug_mask; 1693 1694 if (debug_mask) 1695 netdev_info(netdev, "i40e debug_mask: 0x%08X\n", debug_mask); 1696 1697 return pf->msg_enable; 1698} 1699 1700static void i40e_set_msglevel(struct net_device *netdev, u32 data) 1701{ 1702 struct i40e_netdev_priv *np = netdev_priv(netdev); 1703 struct i40e_pf *pf = np->vsi->back; 1704 1705 if (I40E_DEBUG_USER & data) 1706 pf->hw.debug_mask = data; 1707 else 1708 pf->msg_enable = data; 1709} 1710 1711static int i40e_get_regs_len(struct net_device *netdev) 1712{ 1713 int reg_count = 0; 1714 int i; 1715 1716 for (i = 0; i40e_reg_list[i].offset != 0; i++) 1717 reg_count += i40e_reg_list[i].elements; 1718 1719 return reg_count * sizeof(u32); 1720} 1721 1722static void i40e_get_regs(struct net_device *netdev, struct ethtool_regs *regs, 1723 void *p) 1724{ 1725 struct i40e_netdev_priv *np = netdev_priv(netdev); 1726 struct i40e_pf *pf = np->vsi->back; 1727 struct i40e_hw *hw = &pf->hw; 1728 u32 *reg_buf = p; 1729 unsigned int i, j, ri; 1730 u32 reg; 1731 1732 /* Tell ethtool which driver-version-specific regs output we have. 1733 * 1734 * At some point, if we have ethtool doing special formatting of 1735 * this data, it will rely on this version number to know how to 1736 * interpret things. Hence, this needs to be updated if/when the 1737 * diags register table is changed. 1738 */ 1739 regs->version = 1; 1740 1741 /* loop through the diags reg table for what to print */ 1742 ri = 0; 1743 for (i = 0; i40e_reg_list[i].offset != 0; i++) { 1744 for (j = 0; j < i40e_reg_list[i].elements; j++) { 1745 reg = i40e_reg_list[i].offset 1746 + (j * i40e_reg_list[i].stride); 1747 reg_buf[ri++] = rd32(hw, reg); 1748 } 1749 } 1750 1751} 1752 1753static int i40e_get_eeprom(struct net_device *netdev, 1754 struct ethtool_eeprom *eeprom, u8 *bytes) 1755{ 1756 struct i40e_netdev_priv *np = netdev_priv(netdev); 1757 struct i40e_hw *hw = &np->vsi->back->hw; 1758 struct i40e_pf *pf = np->vsi->back; 1759 int ret_val = 0, len, offset; 1760 u8 *eeprom_buff; 1761 u16 i, sectors; 1762 bool last; 1763 u32 magic; 1764 1765#define I40E_NVM_SECTOR_SIZE 4096 1766 if (eeprom->len == 0) 1767 return -EINVAL; 1768 1769 /* check for NVMUpdate access method */ 1770 magic = hw->vendor_id | (hw->device_id << 16); 1771 if (eeprom->magic && eeprom->magic != magic) { 1772 struct i40e_nvm_access *cmd = (struct i40e_nvm_access *)eeprom; 1773 int errno = 0; 1774 1775 /* make sure it is the right magic for NVMUpdate */ 1776 if ((eeprom->magic >> 16) != hw->device_id) 1777 errno = -EINVAL; 1778 else if (test_bit(__I40E_RESET_RECOVERY_PENDING, pf->state) || 1779 test_bit(__I40E_RESET_INTR_RECEIVED, pf->state)) 1780 errno = -EBUSY; 1781 else 1782 ret_val = i40e_nvmupd_command(hw, cmd, bytes, &errno); 1783 1784 if ((errno || ret_val) && (hw->debug_mask & I40E_DEBUG_NVM)) 1785 dev_info(&pf->pdev->dev, 1786 "NVMUpdate read failed err=%d status=0x%x errno=%d module=%d offset=0x%x size=%d\n", 1787 ret_val, hw->aq.asq_last_status, errno, 1788 (u8)(cmd->config & I40E_NVM_MOD_PNT_MASK), 1789 cmd->offset, cmd->data_size); 1790 1791 return errno; 1792 } 1793 1794 /* normal ethtool get_eeprom support */ 1795 eeprom->magic = hw->vendor_id | (hw->device_id << 16); 1796 1797 eeprom_buff = kzalloc(eeprom->len, GFP_KERNEL); 1798 if (!eeprom_buff) 1799 return -ENOMEM; 1800 1801 ret_val = i40e_acquire_nvm(hw, I40E_RESOURCE_READ); 1802 if (ret_val) { 1803 dev_info(&pf->pdev->dev, 1804 "Failed Acquiring NVM resource for read err=%d status=0x%x\n", 1805 ret_val, hw->aq.asq_last_status); 1806 goto free_buff; 1807 } 1808 1809 sectors = eeprom->len / I40E_NVM_SECTOR_SIZE; 1810 sectors += (eeprom->len % I40E_NVM_SECTOR_SIZE) ? 1 : 0; 1811 len = I40E_NVM_SECTOR_SIZE; 1812 last = false; 1813 for (i = 0; i < sectors; i++) { 1814 if (i == (sectors - 1)) { 1815 len = eeprom->len - (I40E_NVM_SECTOR_SIZE * i); 1816 last = true; 1817 } 1818 offset = eeprom->offset + (I40E_NVM_SECTOR_SIZE * i), 1819 ret_val = i40e_aq_read_nvm(hw, 0x0, offset, len, 1820 (u8 *)eeprom_buff + (I40E_NVM_SECTOR_SIZE * i), 1821 last, NULL); 1822 if (ret_val && hw->aq.asq_last_status == I40E_AQ_RC_EPERM) { 1823 dev_info(&pf->pdev->dev, 1824 "read NVM failed, invalid offset 0x%x\n", 1825 offset); 1826 break; 1827 } else if (ret_val && 1828 hw->aq.asq_last_status == I40E_AQ_RC_EACCES) { 1829 dev_info(&pf->pdev->dev, 1830 "read NVM failed, access, offset 0x%x\n", 1831 offset); 1832 break; 1833 } else if (ret_val) { 1834 dev_info(&pf->pdev->dev, 1835 "read NVM failed offset %d err=%d status=0x%x\n", 1836 offset, ret_val, hw->aq.asq_last_status); 1837 break; 1838 } 1839 } 1840 1841 i40e_release_nvm(hw); 1842 memcpy(bytes, (u8 *)eeprom_buff, eeprom->len); 1843free_buff: 1844 kfree(eeprom_buff); 1845 return ret_val; 1846} 1847 1848static int i40e_get_eeprom_len(struct net_device *netdev) 1849{ 1850 struct i40e_netdev_priv *np = netdev_priv(netdev); 1851 struct i40e_hw *hw = &np->vsi->back->hw; 1852 u32 val; 1853 1854#define X722_EEPROM_SCOPE_LIMIT 0x5B9FFF 1855 if (hw->mac.type == I40E_MAC_X722) { 1856 val = X722_EEPROM_SCOPE_LIMIT + 1; 1857 return val; 1858 } 1859 val = (rd32(hw, I40E_GLPCI_LBARCTRL) 1860 & I40E_GLPCI_LBARCTRL_FL_SIZE_MASK) 1861 >> I40E_GLPCI_LBARCTRL_FL_SIZE_SHIFT; 1862 /* register returns value in power of 2, 64Kbyte chunks. */ 1863 val = (64 * 1024) * BIT(val); 1864 return val; 1865} 1866 1867static int i40e_set_eeprom(struct net_device *netdev, 1868 struct ethtool_eeprom *eeprom, u8 *bytes) 1869{ 1870 struct i40e_netdev_priv *np = netdev_priv(netdev); 1871 struct i40e_hw *hw = &np->vsi->back->hw; 1872 struct i40e_pf *pf = np->vsi->back; 1873 struct i40e_nvm_access *cmd = (struct i40e_nvm_access *)eeprom; 1874 int ret_val = 0; 1875 int errno = 0; 1876 u32 magic; 1877 1878 /* normal ethtool set_eeprom is not supported */ 1879 magic = hw->vendor_id | (hw->device_id << 16); 1880 if (eeprom->magic == magic) 1881 errno = -EOPNOTSUPP; 1882 /* check for NVMUpdate access method */ 1883 else if (!eeprom->magic || (eeprom->magic >> 16) != hw->device_id) 1884 errno = -EINVAL; 1885 else if (test_bit(__I40E_RESET_RECOVERY_PENDING, pf->state) || 1886 test_bit(__I40E_RESET_INTR_RECEIVED, pf->state)) 1887 errno = -EBUSY; 1888 else 1889 ret_val = i40e_nvmupd_command(hw, cmd, bytes, &errno); 1890 1891 if ((errno || ret_val) && (hw->debug_mask & I40E_DEBUG_NVM)) 1892 dev_info(&pf->pdev->dev, 1893 "NVMUpdate write failed err=%d status=0x%x errno=%d module=%d offset=0x%x size=%d\n", 1894 ret_val, hw->aq.asq_last_status, errno, 1895 (u8)(cmd->config & I40E_NVM_MOD_PNT_MASK), 1896 cmd->offset, cmd->data_size); 1897 1898 return errno; 1899} 1900 1901static void i40e_get_drvinfo(struct net_device *netdev, 1902 struct ethtool_drvinfo *drvinfo) 1903{ 1904 struct i40e_netdev_priv *np = netdev_priv(netdev); 1905 struct i40e_vsi *vsi = np->vsi; 1906 struct i40e_pf *pf = vsi->back; 1907 1908 strlcpy(drvinfo->driver, i40e_driver_name, sizeof(drvinfo->driver)); 1909 strlcpy(drvinfo->fw_version, i40e_nvm_version_str(&pf->hw), 1910 sizeof(drvinfo->fw_version)); 1911 strlcpy(drvinfo->bus_info, pci_name(pf->pdev), 1912 sizeof(drvinfo->bus_info)); 1913 drvinfo->n_priv_flags = I40E_PRIV_FLAGS_STR_LEN; 1914 if (pf->hw.pf_id == 0) 1915 drvinfo->n_priv_flags += I40E_GL_PRIV_FLAGS_STR_LEN; 1916} 1917 1918static void i40e_get_ringparam(struct net_device *netdev, 1919 struct ethtool_ringparam *ring) 1920{ 1921 struct i40e_netdev_priv *np = netdev_priv(netdev); 1922 struct i40e_pf *pf = np->vsi->back; 1923 struct i40e_vsi *vsi = pf->vsi[pf->lan_vsi]; 1924 1925 ring->rx_max_pending = I40E_MAX_NUM_DESCRIPTORS; 1926 ring->tx_max_pending = I40E_MAX_NUM_DESCRIPTORS; 1927 ring->rx_mini_max_pending = 0; 1928 ring->rx_jumbo_max_pending = 0; 1929 ring->rx_pending = vsi->rx_rings[0]->count; 1930 ring->tx_pending = vsi->tx_rings[0]->count; 1931 ring->rx_mini_pending = 0; 1932 ring->rx_jumbo_pending = 0; 1933} 1934 1935static bool i40e_active_tx_ring_index(struct i40e_vsi *vsi, u16 index) 1936{ 1937 if (i40e_enabled_xdp_vsi(vsi)) { 1938 return index < vsi->num_queue_pairs || 1939 (index >= vsi->alloc_queue_pairs && 1940 index < vsi->alloc_queue_pairs + vsi->num_queue_pairs); 1941 } 1942 1943 return index < vsi->num_queue_pairs; 1944} 1945 1946static int i40e_set_ringparam(struct net_device *netdev, 1947 struct ethtool_ringparam *ring) 1948{ 1949 struct i40e_ring *tx_rings = NULL, *rx_rings = NULL; 1950 struct i40e_netdev_priv *np = netdev_priv(netdev); 1951 struct i40e_hw *hw = &np->vsi->back->hw; 1952 struct i40e_vsi *vsi = np->vsi; 1953 struct i40e_pf *pf = vsi->back; 1954 u32 new_rx_count, new_tx_count; 1955 u16 tx_alloc_queue_pairs; 1956 int timeout = 50; 1957 int i, err = 0; 1958 1959 if ((ring->rx_mini_pending) || (ring->rx_jumbo_pending)) 1960 return -EINVAL; 1961 1962 if (ring->tx_pending > I40E_MAX_NUM_DESCRIPTORS || 1963 ring->tx_pending < I40E_MIN_NUM_DESCRIPTORS || 1964 ring->rx_pending > I40E_MAX_NUM_DESCRIPTORS || 1965 ring->rx_pending < I40E_MIN_NUM_DESCRIPTORS) { 1966 netdev_info(netdev, 1967 "Descriptors requested (Tx: %d / Rx: %d) out of range [%d-%d]\n", 1968 ring->tx_pending, ring->rx_pending, 1969 I40E_MIN_NUM_DESCRIPTORS, I40E_MAX_NUM_DESCRIPTORS); 1970 return -EINVAL; 1971 } 1972 1973 new_tx_count = ALIGN(ring->tx_pending, I40E_REQ_DESCRIPTOR_MULTIPLE); 1974 new_rx_count = ALIGN(ring->rx_pending, I40E_REQ_DESCRIPTOR_MULTIPLE); 1975 1976 /* if nothing to do return success */ 1977 if ((new_tx_count == vsi->tx_rings[0]->count) && 1978 (new_rx_count == vsi->rx_rings[0]->count)) 1979 return 0; 1980 1981 /* If there is a AF_XDP page pool attached to any of Rx rings, 1982 * disallow changing the number of descriptors -- regardless 1983 * if the netdev is running or not. 1984 */ 1985 if (i40e_xsk_any_rx_ring_enabled(vsi)) 1986 return -EBUSY; 1987 1988 while (test_and_set_bit(__I40E_CONFIG_BUSY, pf->state)) { 1989 timeout--; 1990 if (!timeout) 1991 return -EBUSY; 1992 usleep_range(1000, 2000); 1993 } 1994 1995 if (!netif_running(vsi->netdev)) { 1996 /* simple case - set for the next time the netdev is started */ 1997 for (i = 0; i < vsi->num_queue_pairs; i++) { 1998 vsi->tx_rings[i]->count = new_tx_count; 1999 vsi->rx_rings[i]->count = new_rx_count; 2000 if (i40e_enabled_xdp_vsi(vsi)) 2001 vsi->xdp_rings[i]->count = new_tx_count; 2002 } 2003 vsi->num_tx_desc = new_tx_count; 2004 vsi->num_rx_desc = new_rx_count; 2005 goto done; 2006 } 2007 2008 /* We can't just free everything and then setup again, 2009 * because the ISRs in MSI-X mode get passed pointers 2010 * to the Tx and Rx ring structs. 2011 */ 2012 2013 /* alloc updated Tx and XDP Tx resources */ 2014 tx_alloc_queue_pairs = vsi->alloc_queue_pairs * 2015 (i40e_enabled_xdp_vsi(vsi) ? 2 : 1); 2016 if (new_tx_count != vsi->tx_rings[0]->count) { 2017 netdev_info(netdev, 2018 "Changing Tx descriptor count from %d to %d.\n", 2019 vsi->tx_rings[0]->count, new_tx_count); 2020 tx_rings = kcalloc(tx_alloc_queue_pairs, 2021 sizeof(struct i40e_ring), GFP_KERNEL); 2022 if (!tx_rings) { 2023 err = -ENOMEM; 2024 goto done; 2025 } 2026 2027 for (i = 0; i < tx_alloc_queue_pairs; i++) { 2028 if (!i40e_active_tx_ring_index(vsi, i)) 2029 continue; 2030 2031 tx_rings[i] = *vsi->tx_rings[i]; 2032 tx_rings[i].count = new_tx_count; 2033 /* the desc and bi pointers will be reallocated in the 2034 * setup call 2035 */ 2036 tx_rings[i].desc = NULL; 2037 tx_rings[i].rx_bi = NULL; 2038 err = i40e_setup_tx_descriptors(&tx_rings[i]); 2039 if (err) { 2040 while (i) { 2041 i--; 2042 if (!i40e_active_tx_ring_index(vsi, i)) 2043 continue; 2044 i40e_free_tx_resources(&tx_rings[i]); 2045 } 2046 kfree(tx_rings); 2047 tx_rings = NULL; 2048 2049 goto done; 2050 } 2051 } 2052 } 2053 2054 /* alloc updated Rx resources */ 2055 if (new_rx_count != vsi->rx_rings[0]->count) { 2056 netdev_info(netdev, 2057 "Changing Rx descriptor count from %d to %d\n", 2058 vsi->rx_rings[0]->count, new_rx_count); 2059 rx_rings = kcalloc(vsi->alloc_queue_pairs, 2060 sizeof(struct i40e_ring), GFP_KERNEL); 2061 if (!rx_rings) { 2062 err = -ENOMEM; 2063 goto free_tx; 2064 } 2065 2066 for (i = 0; i < vsi->num_queue_pairs; i++) { 2067 u16 unused; 2068 2069 /* clone ring and setup updated count */ 2070 rx_rings[i] = *vsi->rx_rings[i]; 2071 rx_rings[i].count = new_rx_count; 2072 /* the desc and bi pointers will be reallocated in the 2073 * setup call 2074 */ 2075 rx_rings[i].desc = NULL; 2076 rx_rings[i].rx_bi = NULL; 2077 /* Clear cloned XDP RX-queue info before setup call */ 2078 memset(&rx_rings[i].xdp_rxq, 0, sizeof(rx_rings[i].xdp_rxq)); 2079 /* this is to allow wr32 to have something to write to 2080 * during early allocation of Rx buffers 2081 */ 2082 rx_rings[i].tail = hw->hw_addr + I40E_PRTGEN_STATUS; 2083 err = i40e_setup_rx_descriptors(&rx_rings[i]); 2084 if (err) 2085 goto rx_unwind; 2086 2087 /* now allocate the Rx buffers to make sure the OS 2088 * has enough memory, any failure here means abort 2089 */ 2090 unused = I40E_DESC_UNUSED(&rx_rings[i]); 2091 err = i40e_alloc_rx_buffers(&rx_rings[i], unused); 2092rx_unwind: 2093 if (err) { 2094 do { 2095 i40e_free_rx_resources(&rx_rings[i]); 2096 } while (i--); 2097 kfree(rx_rings); 2098 rx_rings = NULL; 2099 2100 goto free_tx; 2101 } 2102 } 2103 } 2104 2105 /* Bring interface down, copy in the new ring info, 2106 * then restore the interface 2107 */ 2108 i40e_down(vsi); 2109 2110 if (tx_rings) { 2111 for (i = 0; i < tx_alloc_queue_pairs; i++) { 2112 if (i40e_active_tx_ring_index(vsi, i)) { 2113 i40e_free_tx_resources(vsi->tx_rings[i]); 2114 *vsi->tx_rings[i] = tx_rings[i]; 2115 } 2116 } 2117 kfree(tx_rings); 2118 tx_rings = NULL; 2119 } 2120 2121 if (rx_rings) { 2122 for (i = 0; i < vsi->num_queue_pairs; i++) { 2123 i40e_free_rx_resources(vsi->rx_rings[i]); 2124 /* get the real tail offset */ 2125 rx_rings[i].tail = vsi->rx_rings[i]->tail; 2126 /* this is to fake out the allocation routine 2127 * into thinking it has to realloc everything 2128 * but the recycling logic will let us re-use 2129 * the buffers allocated above 2130 */ 2131 rx_rings[i].next_to_use = 0; 2132 rx_rings[i].next_to_clean = 0; 2133 rx_rings[i].next_to_alloc = 0; 2134 /* do a struct copy */ 2135 *vsi->rx_rings[i] = rx_rings[i]; 2136 } 2137 kfree(rx_rings); 2138 rx_rings = NULL; 2139 } 2140 2141 vsi->num_tx_desc = new_tx_count; 2142 vsi->num_rx_desc = new_rx_count; 2143 i40e_up(vsi); 2144 2145free_tx: 2146 /* error cleanup if the Rx allocations failed after getting Tx */ 2147 if (tx_rings) { 2148 for (i = 0; i < tx_alloc_queue_pairs; i++) { 2149 if (i40e_active_tx_ring_index(vsi, i)) 2150 i40e_free_tx_resources(vsi->tx_rings[i]); 2151 } 2152 kfree(tx_rings); 2153 tx_rings = NULL; 2154 } 2155 2156done: 2157 clear_bit(__I40E_CONFIG_BUSY, pf->state); 2158 2159 return err; 2160} 2161 2162/** 2163 * i40e_get_stats_count - return the stats count for a device 2164 * @netdev: the netdev to return the count for 2165 * 2166 * Returns the total number of statistics for this netdev. Note that even 2167 * though this is a function, it is required that the count for a specific 2168 * netdev must never change. Basing the count on static values such as the 2169 * maximum number of queues or the device type is ok. However, the API for 2170 * obtaining stats is *not* safe against changes based on non-static 2171 * values such as the *current* number of queues, or runtime flags. 2172 * 2173 * If a statistic is not always enabled, return it as part of the count 2174 * anyways, always return its string, and report its value as zero. 2175 **/ 2176static int i40e_get_stats_count(struct net_device *netdev) 2177{ 2178 struct i40e_netdev_priv *np = netdev_priv(netdev); 2179 struct i40e_vsi *vsi = np->vsi; 2180 struct i40e_pf *pf = vsi->back; 2181 int stats_len; 2182 2183 if (vsi == pf->vsi[pf->lan_vsi] && pf->hw.partition_id == 1) 2184 stats_len = I40E_PF_STATS_LEN; 2185 else 2186 stats_len = I40E_VSI_STATS_LEN; 2187 2188 /* The number of stats reported for a given net_device must remain 2189 * constant throughout the life of that device. 2190 * 2191 * This is because the API for obtaining the size, strings, and stats 2192 * is spread out over three separate ethtool ioctls. There is no safe 2193 * way to lock the number of stats across these calls, so we must 2194 * assume that they will never change. 2195 * 2196 * Due to this, we report the maximum number of queues, even if not 2197 * every queue is currently configured. Since we always allocate 2198 * queues in pairs, we'll just use netdev->num_tx_queues * 2. This 2199 * works because the num_tx_queues is set at device creation and never 2200 * changes. 2201 */ 2202 stats_len += I40E_QUEUE_STATS_LEN * 2 * netdev->num_tx_queues; 2203 2204 return stats_len; 2205} 2206 2207static int i40e_get_sset_count(struct net_device *netdev, int sset) 2208{ 2209 struct i40e_netdev_priv *np = netdev_priv(netdev); 2210 struct i40e_vsi *vsi = np->vsi; 2211 struct i40e_pf *pf = vsi->back; 2212 2213 switch (sset) { 2214 case ETH_SS_TEST: 2215 return I40E_TEST_LEN; 2216 case ETH_SS_STATS: 2217 return i40e_get_stats_count(netdev); 2218 case ETH_SS_PRIV_FLAGS: 2219 return I40E_PRIV_FLAGS_STR_LEN + 2220 (pf->hw.pf_id == 0 ? I40E_GL_PRIV_FLAGS_STR_LEN : 0); 2221 default: 2222 return -EOPNOTSUPP; 2223 } 2224} 2225 2226/** 2227 * i40e_get_veb_tc_stats - copy VEB TC statistics to formatted structure 2228 * @tc: the TC statistics in VEB structure (veb->tc_stats) 2229 * @i: the index of traffic class in (veb->tc_stats) structure to copy 2230 * 2231 * Copy VEB TC statistics from structure of arrays (veb->tc_stats) to 2232 * one dimensional structure i40e_cp_veb_tc_stats. 2233 * Produce formatted i40e_cp_veb_tc_stats structure of the VEB TC 2234 * statistics for the given TC. 2235 **/ 2236static struct i40e_cp_veb_tc_stats 2237i40e_get_veb_tc_stats(struct i40e_veb_tc_stats *tc, unsigned int i) 2238{ 2239 struct i40e_cp_veb_tc_stats veb_tc = { 2240 .tc_rx_packets = tc->tc_rx_packets[i], 2241 .tc_rx_bytes = tc->tc_rx_bytes[i], 2242 .tc_tx_packets = tc->tc_tx_packets[i], 2243 .tc_tx_bytes = tc->tc_tx_bytes[i], 2244 }; 2245 2246 return veb_tc; 2247} 2248 2249/** 2250 * i40e_get_pfc_stats - copy HW PFC statistics to formatted structure 2251 * @pf: the PF device structure 2252 * @i: the priority value to copy 2253 * 2254 * The PFC stats are found as arrays in pf->stats, which is not easy to pass 2255 * into i40e_add_ethtool_stats. Produce a formatted i40e_pfc_stats structure 2256 * of the PFC stats for the given priority. 2257 **/ 2258static inline struct i40e_pfc_stats 2259i40e_get_pfc_stats(struct i40e_pf *pf, unsigned int i) 2260{ 2261#define I40E_GET_PFC_STAT(stat, priority) \ 2262 .stat = pf->stats.stat[priority] 2263 2264 struct i40e_pfc_stats pfc = { 2265 I40E_GET_PFC_STAT(priority_xon_rx, i), 2266 I40E_GET_PFC_STAT(priority_xoff_rx, i), 2267 I40E_GET_PFC_STAT(priority_xon_tx, i), 2268 I40E_GET_PFC_STAT(priority_xoff_tx, i), 2269 I40E_GET_PFC_STAT(priority_xon_2_xoff, i), 2270 }; 2271 return pfc; 2272} 2273 2274/** 2275 * i40e_get_ethtool_stats - copy stat values into supplied buffer 2276 * @netdev: the netdev to collect stats for 2277 * @stats: ethtool stats command structure 2278 * @data: ethtool supplied buffer 2279 * 2280 * Copy the stats values for this netdev into the buffer. Expects data to be 2281 * pre-allocated to the size returned by i40e_get_stats_count.. Note that all 2282 * statistics must be copied in a static order, and the count must not change 2283 * for a given netdev. See i40e_get_stats_count for more details. 2284 * 2285 * If a statistic is not currently valid (such as a disabled queue), this 2286 * function reports its value as zero. 2287 **/ 2288static void i40e_get_ethtool_stats(struct net_device *netdev, 2289 struct ethtool_stats *stats, u64 *data) 2290{ 2291 struct i40e_netdev_priv *np = netdev_priv(netdev); 2292 struct i40e_vsi *vsi = np->vsi; 2293 struct i40e_pf *pf = vsi->back; 2294 struct i40e_veb *veb = NULL; 2295 unsigned int i; 2296 bool veb_stats; 2297 u64 *p = data; 2298 2299 i40e_update_stats(vsi); 2300 2301 i40e_add_ethtool_stats(&data, i40e_get_vsi_stats_struct(vsi), 2302 i40e_gstrings_net_stats); 2303 2304 i40e_add_ethtool_stats(&data, vsi, i40e_gstrings_misc_stats); 2305 2306 rcu_read_lock(); 2307 for (i = 0; i < netdev->num_tx_queues; i++) { 2308 i40e_add_queue_stats(&data, READ_ONCE(vsi->tx_rings[i])); 2309 i40e_add_queue_stats(&data, READ_ONCE(vsi->rx_rings[i])); 2310 } 2311 rcu_read_unlock(); 2312 2313 if (vsi != pf->vsi[pf->lan_vsi] || pf->hw.partition_id != 1) 2314 goto check_data_pointer; 2315 2316 veb_stats = ((pf->lan_veb != I40E_NO_VEB) && 2317 (pf->lan_veb < I40E_MAX_VEB) && 2318 (pf->flags & I40E_FLAG_VEB_STATS_ENABLED)); 2319 2320 if (veb_stats) { 2321 veb = pf->veb[pf->lan_veb]; 2322 i40e_update_veb_stats(veb); 2323 } 2324 2325 /* If veb stats aren't enabled, pass NULL instead of the veb so that 2326 * we initialize stats to zero and update the data pointer 2327 * intelligently 2328 */ 2329 i40e_add_ethtool_stats(&data, veb_stats ? veb : NULL, 2330 i40e_gstrings_veb_stats); 2331 2332 for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++) 2333 if (veb_stats) { 2334 struct i40e_cp_veb_tc_stats veb_tc = 2335 i40e_get_veb_tc_stats(&veb->tc_stats, i); 2336 2337 i40e_add_ethtool_stats(&data, &veb_tc, 2338 i40e_gstrings_veb_tc_stats); 2339 } else { 2340 i40e_add_ethtool_stats(&data, NULL, 2341 i40e_gstrings_veb_tc_stats); 2342 } 2343 2344 i40e_add_ethtool_stats(&data, pf, i40e_gstrings_stats); 2345 2346 for (i = 0; i < I40E_MAX_USER_PRIORITY; i++) { 2347 struct i40e_pfc_stats pfc = i40e_get_pfc_stats(pf, i); 2348 2349 i40e_add_ethtool_stats(&data, &pfc, i40e_gstrings_pfc_stats); 2350 } 2351 2352check_data_pointer: 2353 WARN_ONCE(data - p != i40e_get_stats_count(netdev), 2354 "ethtool stats count mismatch!"); 2355} 2356 2357/** 2358 * i40e_get_stat_strings - copy stat strings into supplied buffer 2359 * @netdev: the netdev to collect strings for 2360 * @data: supplied buffer to copy strings into 2361 * 2362 * Copy the strings related to stats for this netdev. Expects data to be 2363 * pre-allocated with the size reported by i40e_get_stats_count. Note that the 2364 * strings must be copied in a static order and the total count must not 2365 * change for a given netdev. See i40e_get_stats_count for more details. 2366 **/ 2367static void i40e_get_stat_strings(struct net_device *netdev, u8 *data) 2368{ 2369 struct i40e_netdev_priv *np = netdev_priv(netdev); 2370 struct i40e_vsi *vsi = np->vsi; 2371 struct i40e_pf *pf = vsi->back; 2372 unsigned int i; 2373 u8 *p = data; 2374 2375 i40e_add_stat_strings(&data, i40e_gstrings_net_stats); 2376 2377 i40e_add_stat_strings(&data, i40e_gstrings_misc_stats); 2378 2379 for (i = 0; i < netdev->num_tx_queues; i++) { 2380 i40e_add_stat_strings(&data, i40e_gstrings_queue_stats, 2381 "tx", i); 2382 i40e_add_stat_strings(&data, i40e_gstrings_queue_stats, 2383 "rx", i); 2384 } 2385 2386 if (vsi != pf->vsi[pf->lan_vsi] || pf->hw.partition_id != 1) 2387 goto check_data_pointer; 2388 2389 i40e_add_stat_strings(&data, i40e_gstrings_veb_stats); 2390 2391 for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++) 2392 i40e_add_stat_strings(&data, i40e_gstrings_veb_tc_stats, i); 2393 2394 i40e_add_stat_strings(&data, i40e_gstrings_stats); 2395 2396 for (i = 0; i < I40E_MAX_USER_PRIORITY; i++) 2397 i40e_add_stat_strings(&data, i40e_gstrings_pfc_stats, i); 2398 2399check_data_pointer: 2400 WARN_ONCE(data - p != i40e_get_stats_count(netdev) * ETH_GSTRING_LEN, 2401 "stat strings count mismatch!"); 2402} 2403 2404static void i40e_get_priv_flag_strings(struct net_device *netdev, u8 *data) 2405{ 2406 struct i40e_netdev_priv *np = netdev_priv(netdev); 2407 struct i40e_vsi *vsi = np->vsi; 2408 struct i40e_pf *pf = vsi->back; 2409 char *p = (char *)data; 2410 unsigned int i; 2411 2412 for (i = 0; i < I40E_PRIV_FLAGS_STR_LEN; i++) { 2413 snprintf(p, ETH_GSTRING_LEN, "%s", 2414 i40e_gstrings_priv_flags[i].flag_string); 2415 p += ETH_GSTRING_LEN; 2416 } 2417 if (pf->hw.pf_id != 0) 2418 return; 2419 for (i = 0; i < I40E_GL_PRIV_FLAGS_STR_LEN; i++) { 2420 snprintf(p, ETH_GSTRING_LEN, "%s", 2421 i40e_gl_gstrings_priv_flags[i].flag_string); 2422 p += ETH_GSTRING_LEN; 2423 } 2424} 2425 2426static void i40e_get_strings(struct net_device *netdev, u32 stringset, 2427 u8 *data) 2428{ 2429 switch (stringset) { 2430 case ETH_SS_TEST: 2431 memcpy(data, i40e_gstrings_test, 2432 I40E_TEST_LEN * ETH_GSTRING_LEN); 2433 break; 2434 case ETH_SS_STATS: 2435 i40e_get_stat_strings(netdev, data); 2436 break; 2437 case ETH_SS_PRIV_FLAGS: 2438 i40e_get_priv_flag_strings(netdev, data); 2439 break; 2440 default: 2441 break; 2442 } 2443} 2444 2445static int i40e_get_ts_info(struct net_device *dev, 2446 struct ethtool_ts_info *info) 2447{ 2448 struct i40e_pf *pf = i40e_netdev_to_pf(dev); 2449 2450 /* only report HW timestamping if PTP is enabled */ 2451 if (!(pf->flags & I40E_FLAG_PTP)) 2452 return ethtool_op_get_ts_info(dev, info); 2453 2454 info->so_timestamping = SOF_TIMESTAMPING_TX_SOFTWARE | 2455 SOF_TIMESTAMPING_RX_SOFTWARE | 2456 SOF_TIMESTAMPING_SOFTWARE | 2457 SOF_TIMESTAMPING_TX_HARDWARE | 2458 SOF_TIMESTAMPING_RX_HARDWARE | 2459 SOF_TIMESTAMPING_RAW_HARDWARE; 2460 2461 if (pf->ptp_clock) 2462 info->phc_index = ptp_clock_index(pf->ptp_clock); 2463 else 2464 info->phc_index = -1; 2465 2466 info->tx_types = BIT(HWTSTAMP_TX_OFF) | BIT(HWTSTAMP_TX_ON); 2467 2468 info->rx_filters = BIT(HWTSTAMP_FILTER_NONE) | 2469 BIT(HWTSTAMP_FILTER_PTP_V2_L2_EVENT) | 2470 BIT(HWTSTAMP_FILTER_PTP_V2_L2_SYNC) | 2471 BIT(HWTSTAMP_FILTER_PTP_V2_L2_DELAY_REQ); 2472 2473 if (pf->hw_features & I40E_HW_PTP_L4_CAPABLE) 2474 info->rx_filters |= BIT(HWTSTAMP_FILTER_PTP_V1_L4_SYNC) | 2475 BIT(HWTSTAMP_FILTER_PTP_V1_L4_DELAY_REQ) | 2476 BIT(HWTSTAMP_FILTER_PTP_V2_EVENT) | 2477 BIT(HWTSTAMP_FILTER_PTP_V2_L4_EVENT) | 2478 BIT(HWTSTAMP_FILTER_PTP_V2_SYNC) | 2479 BIT(HWTSTAMP_FILTER_PTP_V2_L4_SYNC) | 2480 BIT(HWTSTAMP_FILTER_PTP_V2_DELAY_REQ) | 2481 BIT(HWTSTAMP_FILTER_PTP_V2_L4_DELAY_REQ); 2482 2483 return 0; 2484} 2485 2486static u64 i40e_link_test(struct net_device *netdev, u64 *data) 2487{ 2488 struct i40e_netdev_priv *np = netdev_priv(netdev); 2489 struct i40e_pf *pf = np->vsi->back; 2490 i40e_status status; 2491 bool link_up = false; 2492 2493 netif_info(pf, hw, netdev, "link test\n"); 2494 status = i40e_get_link_status(&pf->hw, &link_up); 2495 if (status) { 2496 netif_err(pf, drv, netdev, "link query timed out, please retry test\n"); 2497 *data = 1; 2498 return *data; 2499 } 2500 2501 if (link_up) 2502 *data = 0; 2503 else 2504 *data = 1; 2505 2506 return *data; 2507} 2508 2509static u64 i40e_reg_test(struct net_device *netdev, u64 *data) 2510{ 2511 struct i40e_netdev_priv *np = netdev_priv(netdev); 2512 struct i40e_pf *pf = np->vsi->back; 2513 2514 netif_info(pf, hw, netdev, "register test\n"); 2515 *data = i40e_diag_reg_test(&pf->hw); 2516 2517 return *data; 2518} 2519 2520static u64 i40e_eeprom_test(struct net_device *netdev, u64 *data) 2521{ 2522 struct i40e_netdev_priv *np = netdev_priv(netdev); 2523 struct i40e_pf *pf = np->vsi->back; 2524 2525 netif_info(pf, hw, netdev, "eeprom test\n"); 2526 *data = i40e_diag_eeprom_test(&pf->hw); 2527 2528 /* forcebly clear the NVM Update state machine */ 2529 pf->hw.nvmupd_state = I40E_NVMUPD_STATE_INIT; 2530 2531 return *data; 2532} 2533 2534static u64 i40e_intr_test(struct net_device *netdev, u64 *data) 2535{ 2536 struct i40e_netdev_priv *np = netdev_priv(netdev); 2537 struct i40e_pf *pf = np->vsi->back; 2538 u16 swc_old = pf->sw_int_count; 2539 2540 netif_info(pf, hw, netdev, "interrupt test\n"); 2541 wr32(&pf->hw, I40E_PFINT_DYN_CTL0, 2542 (I40E_PFINT_DYN_CTL0_INTENA_MASK | 2543 I40E_PFINT_DYN_CTL0_SWINT_TRIG_MASK | 2544 I40E_PFINT_DYN_CTL0_ITR_INDX_MASK | 2545 I40E_PFINT_DYN_CTL0_SW_ITR_INDX_ENA_MASK | 2546 I40E_PFINT_DYN_CTL0_SW_ITR_INDX_MASK)); 2547 usleep_range(1000, 2000); 2548 *data = (swc_old == pf->sw_int_count); 2549 2550 return *data; 2551} 2552 2553static inline bool i40e_active_vfs(struct i40e_pf *pf) 2554{ 2555 struct i40e_vf *vfs = pf->vf; 2556 int i; 2557 2558 for (i = 0; i < pf->num_alloc_vfs; i++) 2559 if (test_bit(I40E_VF_STATE_ACTIVE, &vfs[i].vf_states)) 2560 return true; 2561 return false; 2562} 2563 2564static inline bool i40e_active_vmdqs(struct i40e_pf *pf) 2565{ 2566 return !!i40e_find_vsi_by_type(pf, I40E_VSI_VMDQ2); 2567} 2568 2569static void i40e_diag_test(struct net_device *netdev, 2570 struct ethtool_test *eth_test, u64 *data) 2571{ 2572 struct i40e_netdev_priv *np = netdev_priv(netdev); 2573 bool if_running = netif_running(netdev); 2574 struct i40e_pf *pf = np->vsi->back; 2575 2576 if (eth_test->flags == ETH_TEST_FL_OFFLINE) { 2577 /* Offline tests */ 2578 netif_info(pf, drv, netdev, "offline testing starting\n"); 2579 2580 set_bit(__I40E_TESTING, pf->state); 2581 2582 if (test_bit(__I40E_RESET_RECOVERY_PENDING, pf->state) || 2583 test_bit(__I40E_RESET_INTR_RECEIVED, pf->state)) { 2584 dev_warn(&pf->pdev->dev, 2585 "Cannot start offline testing when PF is in reset state.\n"); 2586 goto skip_ol_tests; 2587 } 2588 2589 if (i40e_active_vfs(pf) || i40e_active_vmdqs(pf)) { 2590 dev_warn(&pf->pdev->dev, 2591 "Please take active VFs and Netqueues offline and restart the adapter before running NIC diagnostics\n"); 2592 goto skip_ol_tests; 2593 } 2594 2595 /* If the device is online then take it offline */ 2596 if (if_running) 2597 /* indicate we're in test mode */ 2598 i40e_close(netdev); 2599 else 2600 /* This reset does not affect link - if it is 2601 * changed to a type of reset that does affect 2602 * link then the following link test would have 2603 * to be moved to before the reset 2604 */ 2605 i40e_do_reset(pf, BIT(__I40E_PF_RESET_REQUESTED), true); 2606 2607 if (i40e_link_test(netdev, &data[I40E_ETH_TEST_LINK])) 2608 eth_test->flags |= ETH_TEST_FL_FAILED; 2609 2610 if (i40e_eeprom_test(netdev, &data[I40E_ETH_TEST_EEPROM])) 2611 eth_test->flags |= ETH_TEST_FL_FAILED; 2612 2613 if (i40e_intr_test(netdev, &data[I40E_ETH_TEST_INTR])) 2614 eth_test->flags |= ETH_TEST_FL_FAILED; 2615 2616 /* run reg test last, a reset is required after it */ 2617 if (i40e_reg_test(netdev, &data[I40E_ETH_TEST_REG])) 2618 eth_test->flags |= ETH_TEST_FL_FAILED; 2619 2620 clear_bit(__I40E_TESTING, pf->state); 2621 i40e_do_reset(pf, BIT(__I40E_PF_RESET_REQUESTED), true); 2622 2623 if (if_running) 2624 i40e_open(netdev); 2625 } else { 2626 /* Online tests */ 2627 netif_info(pf, drv, netdev, "online testing starting\n"); 2628 2629 if (i40e_link_test(netdev, &data[I40E_ETH_TEST_LINK])) 2630 eth_test->flags |= ETH_TEST_FL_FAILED; 2631 2632 /* Offline only tests, not run in online; pass by default */ 2633 data[I40E_ETH_TEST_REG] = 0; 2634 data[I40E_ETH_TEST_EEPROM] = 0; 2635 data[I40E_ETH_TEST_INTR] = 0; 2636 } 2637 2638 netif_info(pf, drv, netdev, "testing finished\n"); 2639 return; 2640 2641skip_ol_tests: 2642 data[I40E_ETH_TEST_REG] = 1; 2643 data[I40E_ETH_TEST_EEPROM] = 1; 2644 data[I40E_ETH_TEST_INTR] = 1; 2645 data[I40E_ETH_TEST_LINK] = 1; 2646 eth_test->flags |= ETH_TEST_FL_FAILED; 2647 clear_bit(__I40E_TESTING, pf->state); 2648 netif_info(pf, drv, netdev, "testing failed\n"); 2649} 2650 2651static void i40e_get_wol(struct net_device *netdev, 2652 struct ethtool_wolinfo *wol) 2653{ 2654 struct i40e_netdev_priv *np = netdev_priv(netdev); 2655 struct i40e_pf *pf = np->vsi->back; 2656 struct i40e_hw *hw = &pf->hw; 2657 u16 wol_nvm_bits; 2658 2659 /* NVM bit on means WoL disabled for the port */ 2660 i40e_read_nvm_word(hw, I40E_SR_NVM_WAKE_ON_LAN, &wol_nvm_bits); 2661 if ((BIT(hw->port) & wol_nvm_bits) || (hw->partition_id != 1)) { 2662 wol->supported = 0; 2663 wol->wolopts = 0; 2664 } else { 2665 wol->supported = WAKE_MAGIC; 2666 wol->wolopts = (pf->wol_en ? WAKE_MAGIC : 0); 2667 } 2668} 2669 2670/** 2671 * i40e_set_wol - set the WakeOnLAN configuration 2672 * @netdev: the netdev in question 2673 * @wol: the ethtool WoL setting data 2674 **/ 2675static int i40e_set_wol(struct net_device *netdev, struct ethtool_wolinfo *wol) 2676{ 2677 struct i40e_netdev_priv *np = netdev_priv(netdev); 2678 struct i40e_pf *pf = np->vsi->back; 2679 struct i40e_vsi *vsi = np->vsi; 2680 struct i40e_hw *hw = &pf->hw; 2681 u16 wol_nvm_bits; 2682 2683 /* WoL not supported if this isn't the controlling PF on the port */ 2684 if (hw->partition_id != 1) { 2685 i40e_partition_setting_complaint(pf); 2686 return -EOPNOTSUPP; 2687 } 2688 2689 if (vsi != pf->vsi[pf->lan_vsi]) 2690 return -EOPNOTSUPP; 2691 2692 /* NVM bit on means WoL disabled for the port */ 2693 i40e_read_nvm_word(hw, I40E_SR_NVM_WAKE_ON_LAN, &wol_nvm_bits); 2694 if (BIT(hw->port) & wol_nvm_bits) 2695 return -EOPNOTSUPP; 2696 2697 /* only magic packet is supported */ 2698 if (wol->wolopts & ~WAKE_MAGIC) 2699 return -EOPNOTSUPP; 2700 2701 /* is this a new value? */ 2702 if (pf->wol_en != !!wol->wolopts) { 2703 pf->wol_en = !!wol->wolopts; 2704 device_set_wakeup_enable(&pf->pdev->dev, pf->wol_en); 2705 } 2706 2707 return 0; 2708} 2709 2710static int i40e_set_phys_id(struct net_device *netdev, 2711 enum ethtool_phys_id_state state) 2712{ 2713 struct i40e_netdev_priv *np = netdev_priv(netdev); 2714 i40e_status ret = 0; 2715 struct i40e_pf *pf = np->vsi->back; 2716 struct i40e_hw *hw = &pf->hw; 2717 int blink_freq = 2; 2718 u16 temp_status; 2719 2720 switch (state) { 2721 case ETHTOOL_ID_ACTIVE: 2722 if (!(pf->hw_features & I40E_HW_PHY_CONTROLS_LEDS)) { 2723 pf->led_status = i40e_led_get(hw); 2724 } else { 2725 if (!(hw->flags & I40E_HW_FLAG_AQ_PHY_ACCESS_CAPABLE)) 2726 i40e_aq_set_phy_debug(hw, I40E_PHY_DEBUG_ALL, 2727 NULL); 2728 ret = i40e_led_get_phy(hw, &temp_status, 2729 &pf->phy_led_val); 2730 pf->led_status = temp_status; 2731 } 2732 return blink_freq; 2733 case ETHTOOL_ID_ON: 2734 if (!(pf->hw_features & I40E_HW_PHY_CONTROLS_LEDS)) 2735 i40e_led_set(hw, 0xf, false); 2736 else 2737 ret = i40e_led_set_phy(hw, true, pf->led_status, 0); 2738 break; 2739 case ETHTOOL_ID_OFF: 2740 if (!(pf->hw_features & I40E_HW_PHY_CONTROLS_LEDS)) 2741 i40e_led_set(hw, 0x0, false); 2742 else 2743 ret = i40e_led_set_phy(hw, false, pf->led_status, 0); 2744 break; 2745 case ETHTOOL_ID_INACTIVE: 2746 if (!(pf->hw_features & I40E_HW_PHY_CONTROLS_LEDS)) { 2747 i40e_led_set(hw, pf->led_status, false); 2748 } else { 2749 ret = i40e_led_set_phy(hw, false, pf->led_status, 2750 (pf->phy_led_val | 2751 I40E_PHY_LED_MODE_ORIG)); 2752 if (!(hw->flags & I40E_HW_FLAG_AQ_PHY_ACCESS_CAPABLE)) 2753 i40e_aq_set_phy_debug(hw, 0, NULL); 2754 } 2755 break; 2756 default: 2757 break; 2758 } 2759 if (ret) 2760 return -ENOENT; 2761 else 2762 return 0; 2763} 2764 2765/* NOTE: i40e hardware uses a conversion factor of 2 for Interrupt 2766 * Throttle Rate (ITR) ie. ITR(1) = 2us ITR(10) = 20 us, and also 2767 * 125us (8000 interrupts per second) == ITR(62) 2768 */ 2769 2770/** 2771 * __i40e_get_coalesce - get per-queue coalesce settings 2772 * @netdev: the netdev to check 2773 * @ec: ethtool coalesce data structure 2774 * @queue: which queue to pick 2775 * 2776 * Gets the per-queue settings for coalescence. Specifically Rx and Tx usecs 2777 * are per queue. If queue is <0 then we default to queue 0 as the 2778 * representative value. 2779 **/ 2780static int __i40e_get_coalesce(struct net_device *netdev, 2781 struct ethtool_coalesce *ec, 2782 int queue) 2783{ 2784 struct i40e_netdev_priv *np = netdev_priv(netdev); 2785 struct i40e_ring *rx_ring, *tx_ring; 2786 struct i40e_vsi *vsi = np->vsi; 2787 2788 ec->tx_max_coalesced_frames_irq = vsi->work_limit; 2789 ec->rx_max_coalesced_frames_irq = vsi->work_limit; 2790 2791 /* rx and tx usecs has per queue value. If user doesn't specify the 2792 * queue, return queue 0's value to represent. 2793 */ 2794 if (queue < 0) 2795 queue = 0; 2796 else if (queue >= vsi->num_queue_pairs) 2797 return -EINVAL; 2798 2799 rx_ring = vsi->rx_rings[queue]; 2800 tx_ring = vsi->tx_rings[queue]; 2801 2802 if (ITR_IS_DYNAMIC(rx_ring->itr_setting)) 2803 ec->use_adaptive_rx_coalesce = 1; 2804 2805 if (ITR_IS_DYNAMIC(tx_ring->itr_setting)) 2806 ec->use_adaptive_tx_coalesce = 1; 2807 2808 ec->rx_coalesce_usecs = rx_ring->itr_setting & ~I40E_ITR_DYNAMIC; 2809 ec->tx_coalesce_usecs = tx_ring->itr_setting & ~I40E_ITR_DYNAMIC; 2810 2811 /* we use the _usecs_high to store/set the interrupt rate limit 2812 * that the hardware supports, that almost but not quite 2813 * fits the original intent of the ethtool variable, 2814 * the rx_coalesce_usecs_high limits total interrupts 2815 * per second from both tx/rx sources. 2816 */ 2817 ec->rx_coalesce_usecs_high = vsi->int_rate_limit; 2818 ec->tx_coalesce_usecs_high = vsi->int_rate_limit; 2819 2820 return 0; 2821} 2822 2823/** 2824 * i40e_get_coalesce - get a netdev's coalesce settings 2825 * @netdev: the netdev to check 2826 * @ec: ethtool coalesce data structure 2827 * 2828 * Gets the coalesce settings for a particular netdev. Note that if user has 2829 * modified per-queue settings, this only guarantees to represent queue 0. See 2830 * __i40e_get_coalesce for more details. 2831 **/ 2832static int i40e_get_coalesce(struct net_device *netdev, 2833 struct ethtool_coalesce *ec) 2834{ 2835 return __i40e_get_coalesce(netdev, ec, -1); 2836} 2837 2838/** 2839 * i40e_get_per_queue_coalesce - gets coalesce settings for particular queue 2840 * @netdev: netdev structure 2841 * @ec: ethtool's coalesce settings 2842 * @queue: the particular queue to read 2843 * 2844 * Will read a specific queue's coalesce settings 2845 **/ 2846static int i40e_get_per_queue_coalesce(struct net_device *netdev, u32 queue, 2847 struct ethtool_coalesce *ec) 2848{ 2849 return __i40e_get_coalesce(netdev, ec, queue); 2850} 2851 2852/** 2853 * i40e_set_itr_per_queue - set ITR values for specific queue 2854 * @vsi: the VSI to set values for 2855 * @ec: coalesce settings from ethtool 2856 * @queue: the queue to modify 2857 * 2858 * Change the ITR settings for a specific queue. 2859 **/ 2860static void i40e_set_itr_per_queue(struct i40e_vsi *vsi, 2861 struct ethtool_coalesce *ec, 2862 int queue) 2863{ 2864 struct i40e_ring *rx_ring = vsi->rx_rings[queue]; 2865 struct i40e_ring *tx_ring = vsi->tx_rings[queue]; 2866 struct i40e_pf *pf = vsi->back; 2867 struct i40e_hw *hw = &pf->hw; 2868 struct i40e_q_vector *q_vector; 2869 u16 intrl; 2870 2871 intrl = i40e_intrl_usec_to_reg(vsi->int_rate_limit); 2872 2873 rx_ring->itr_setting = ITR_REG_ALIGN(ec->rx_coalesce_usecs); 2874 tx_ring->itr_setting = ITR_REG_ALIGN(ec->tx_coalesce_usecs); 2875 2876 if (ec->use_adaptive_rx_coalesce) 2877 rx_ring->itr_setting |= I40E_ITR_DYNAMIC; 2878 else 2879 rx_ring->itr_setting &= ~I40E_ITR_DYNAMIC; 2880 2881 if (ec->use_adaptive_tx_coalesce) 2882 tx_ring->itr_setting |= I40E_ITR_DYNAMIC; 2883 else 2884 tx_ring->itr_setting &= ~I40E_ITR_DYNAMIC; 2885 2886 q_vector = rx_ring->q_vector; 2887 q_vector->rx.target_itr = ITR_TO_REG(rx_ring->itr_setting); 2888 2889 q_vector = tx_ring->q_vector; 2890 q_vector->tx.target_itr = ITR_TO_REG(tx_ring->itr_setting); 2891 2892 /* The interrupt handler itself will take care of programming 2893 * the Tx and Rx ITR values based on the values we have entered 2894 * into the q_vector, no need to write the values now. 2895 */ 2896 2897 wr32(hw, I40E_PFINT_RATEN(q_vector->reg_idx), intrl); 2898 i40e_flush(hw); 2899} 2900 2901/** 2902 * __i40e_set_coalesce - set coalesce settings for particular queue 2903 * @netdev: the netdev to change 2904 * @ec: ethtool coalesce settings 2905 * @queue: the queue to change 2906 * 2907 * Sets the coalesce settings for a particular queue. 2908 **/ 2909static int __i40e_set_coalesce(struct net_device *netdev, 2910 struct ethtool_coalesce *ec, 2911 int queue) 2912{ 2913 struct i40e_netdev_priv *np = netdev_priv(netdev); 2914 u16 intrl_reg, cur_rx_itr, cur_tx_itr; 2915 struct i40e_vsi *vsi = np->vsi; 2916 struct i40e_pf *pf = vsi->back; 2917 int i; 2918 2919 if (ec->tx_max_coalesced_frames_irq || ec->rx_max_coalesced_frames_irq) 2920 vsi->work_limit = ec->tx_max_coalesced_frames_irq; 2921 2922 if (queue < 0) { 2923 cur_rx_itr = vsi->rx_rings[0]->itr_setting; 2924 cur_tx_itr = vsi->tx_rings[0]->itr_setting; 2925 } else if (queue < vsi->num_queue_pairs) { 2926 cur_rx_itr = vsi->rx_rings[queue]->itr_setting; 2927 cur_tx_itr = vsi->tx_rings[queue]->itr_setting; 2928 } else { 2929 netif_info(pf, drv, netdev, "Invalid queue value, queue range is 0 - %d\n", 2930 vsi->num_queue_pairs - 1); 2931 return -EINVAL; 2932 } 2933 2934 cur_tx_itr &= ~I40E_ITR_DYNAMIC; 2935 cur_rx_itr &= ~I40E_ITR_DYNAMIC; 2936 2937 /* tx_coalesce_usecs_high is ignored, use rx-usecs-high instead */ 2938 if (ec->tx_coalesce_usecs_high != vsi->int_rate_limit) { 2939 netif_info(pf, drv, netdev, "tx-usecs-high is not used, please program rx-usecs-high\n"); 2940 return -EINVAL; 2941 } 2942 2943 if (ec->rx_coalesce_usecs_high > INTRL_REG_TO_USEC(I40E_MAX_INTRL)) { 2944 netif_info(pf, drv, netdev, "Invalid value, rx-usecs-high range is 0-%lu\n", 2945 INTRL_REG_TO_USEC(I40E_MAX_INTRL)); 2946 return -EINVAL; 2947 } 2948 2949 if (ec->rx_coalesce_usecs != cur_rx_itr && 2950 ec->use_adaptive_rx_coalesce) { 2951 netif_info(pf, drv, netdev, "RX interrupt moderation cannot be changed if adaptive-rx is enabled.\n"); 2952 return -EINVAL; 2953 } 2954 2955 if (ec->rx_coalesce_usecs > I40E_MAX_ITR) { 2956 netif_info(pf, drv, netdev, "Invalid value, rx-usecs range is 0-8160\n"); 2957 return -EINVAL; 2958 } 2959 2960 if (ec->tx_coalesce_usecs != cur_tx_itr && 2961 ec->use_adaptive_tx_coalesce) { 2962 netif_info(pf, drv, netdev, "TX interrupt moderation cannot be changed if adaptive-tx is enabled.\n"); 2963 return -EINVAL; 2964 } 2965 2966 if (ec->tx_coalesce_usecs > I40E_MAX_ITR) { 2967 netif_info(pf, drv, netdev, "Invalid value, tx-usecs range is 0-8160\n"); 2968 return -EINVAL; 2969 } 2970 2971 if (ec->use_adaptive_rx_coalesce && !cur_rx_itr) 2972 ec->rx_coalesce_usecs = I40E_MIN_ITR; 2973 2974 if (ec->use_adaptive_tx_coalesce && !cur_tx_itr) 2975 ec->tx_coalesce_usecs = I40E_MIN_ITR; 2976 2977 intrl_reg = i40e_intrl_usec_to_reg(ec->rx_coalesce_usecs_high); 2978 vsi->int_rate_limit = INTRL_REG_TO_USEC(intrl_reg); 2979 if (vsi->int_rate_limit != ec->rx_coalesce_usecs_high) { 2980 netif_info(pf, drv, netdev, "Interrupt rate limit rounded down to %d\n", 2981 vsi->int_rate_limit); 2982 } 2983 2984 /* rx and tx usecs has per queue value. If user doesn't specify the 2985 * queue, apply to all queues. 2986 */ 2987 if (queue < 0) { 2988 for (i = 0; i < vsi->num_queue_pairs; i++) 2989 i40e_set_itr_per_queue(vsi, ec, i); 2990 } else { 2991 i40e_set_itr_per_queue(vsi, ec, queue); 2992 } 2993 2994 return 0; 2995} 2996 2997/** 2998 * i40e_set_coalesce - set coalesce settings for every queue on the netdev 2999 * @netdev: the netdev to change 3000 * @ec: ethtool coalesce settings 3001 * 3002 * This will set each queue to the same coalesce settings. 3003 **/ 3004static int i40e_set_coalesce(struct net_device *netdev, 3005 struct ethtool_coalesce *ec) 3006{ 3007 return __i40e_set_coalesce(netdev, ec, -1); 3008} 3009 3010/** 3011 * i40e_set_per_queue_coalesce - set specific queue's coalesce settings 3012 * @netdev: the netdev to change 3013 * @ec: ethtool's coalesce settings 3014 * @queue: the queue to change 3015 * 3016 * Sets the specified queue's coalesce settings. 3017 **/ 3018static int i40e_set_per_queue_coalesce(struct net_device *netdev, u32 queue, 3019 struct ethtool_coalesce *ec) 3020{ 3021 return __i40e_set_coalesce(netdev, ec, queue); 3022} 3023 3024/** 3025 * i40e_get_rss_hash_opts - Get RSS hash Input Set for each flow type 3026 * @pf: pointer to the physical function struct 3027 * @cmd: ethtool rxnfc command 3028 * 3029 * Returns Success if the flow is supported, else Invalid Input. 3030 **/ 3031static int i40e_get_rss_hash_opts(struct i40e_pf *pf, struct ethtool_rxnfc *cmd) 3032{ 3033 struct i40e_hw *hw = &pf->hw; 3034 u8 flow_pctype = 0; 3035 u64 i_set = 0; 3036 3037 cmd->data = 0; 3038 3039 switch (cmd->flow_type) { 3040 case TCP_V4_FLOW: 3041 flow_pctype = I40E_FILTER_PCTYPE_NONF_IPV4_TCP; 3042 break; 3043 case UDP_V4_FLOW: 3044 flow_pctype = I40E_FILTER_PCTYPE_NONF_IPV4_UDP; 3045 break; 3046 case TCP_V6_FLOW: 3047 flow_pctype = I40E_FILTER_PCTYPE_NONF_IPV6_TCP; 3048 break; 3049 case UDP_V6_FLOW: 3050 flow_pctype = I40E_FILTER_PCTYPE_NONF_IPV6_UDP; 3051 break; 3052 case SCTP_V4_FLOW: 3053 case AH_ESP_V4_FLOW: 3054 case AH_V4_FLOW: 3055 case ESP_V4_FLOW: 3056 case IPV4_FLOW: 3057 case SCTP_V6_FLOW: 3058 case AH_ESP_V6_FLOW: 3059 case AH_V6_FLOW: 3060 case ESP_V6_FLOW: 3061 case IPV6_FLOW: 3062 /* Default is src/dest for IP, no matter the L4 hashing */ 3063 cmd->data |= RXH_IP_SRC | RXH_IP_DST; 3064 break; 3065 default: 3066 return -EINVAL; 3067 } 3068 3069 /* Read flow based hash input set register */ 3070 if (flow_pctype) { 3071 i_set = (u64)i40e_read_rx_ctl(hw, I40E_GLQF_HASH_INSET(0, 3072 flow_pctype)) | 3073 ((u64)i40e_read_rx_ctl(hw, I40E_GLQF_HASH_INSET(1, 3074 flow_pctype)) << 32); 3075 } 3076 3077 /* Process bits of hash input set */ 3078 if (i_set) { 3079 if (i_set & I40E_L4_SRC_MASK) 3080 cmd->data |= RXH_L4_B_0_1; 3081 if (i_set & I40E_L4_DST_MASK) 3082 cmd->data |= RXH_L4_B_2_3; 3083 3084 if (cmd->flow_type == TCP_V4_FLOW || 3085 cmd->flow_type == UDP_V4_FLOW) { 3086 if (hw->mac.type == I40E_MAC_X722) { 3087 if (i_set & I40E_X722_L3_SRC_MASK) 3088 cmd->data |= RXH_IP_SRC; 3089 if (i_set & I40E_X722_L3_DST_MASK) 3090 cmd->data |= RXH_IP_DST; 3091 } else { 3092 if (i_set & I40E_L3_SRC_MASK) 3093 cmd->data |= RXH_IP_SRC; 3094 if (i_set & I40E_L3_DST_MASK) 3095 cmd->data |= RXH_IP_DST; 3096 } 3097 } else if (cmd->flow_type == TCP_V6_FLOW || 3098 cmd->flow_type == UDP_V6_FLOW) { 3099 if (i_set & I40E_L3_V6_SRC_MASK) 3100 cmd->data |= RXH_IP_SRC; 3101 if (i_set & I40E_L3_V6_DST_MASK) 3102 cmd->data |= RXH_IP_DST; 3103 } 3104 } 3105 3106 return 0; 3107} 3108 3109/** 3110 * i40e_check_mask - Check whether a mask field is set 3111 * @mask: the full mask value 3112 * @field: mask of the field to check 3113 * 3114 * If the given mask is fully set, return positive value. If the mask for the 3115 * field is fully unset, return zero. Otherwise return a negative error code. 3116 **/ 3117static int i40e_check_mask(u64 mask, u64 field) 3118{ 3119 u64 value = mask & field; 3120 3121 if (value == field) 3122 return 1; 3123 else if (!value) 3124 return 0; 3125 else 3126 return -1; 3127} 3128 3129/** 3130 * i40e_parse_rx_flow_user_data - Deconstruct user-defined data 3131 * @fsp: pointer to rx flow specification 3132 * @data: pointer to userdef data structure for storage 3133 * 3134 * Read the user-defined data and deconstruct the value into a structure. No 3135 * other code should read the user-defined data, so as to ensure that every 3136 * place consistently reads the value correctly. 3137 * 3138 * The user-defined field is a 64bit Big Endian format value, which we 3139 * deconstruct by reading bits or bit fields from it. Single bit flags shall 3140 * be defined starting from the highest bits, while small bit field values 3141 * shall be defined starting from the lowest bits. 3142 * 3143 * Returns 0 if the data is valid, and non-zero if the userdef data is invalid 3144 * and the filter should be rejected. The data structure will always be 3145 * modified even if FLOW_EXT is not set. 3146 * 3147 **/ 3148static int i40e_parse_rx_flow_user_data(struct ethtool_rx_flow_spec *fsp, 3149 struct i40e_rx_flow_userdef *data) 3150{ 3151 u64 value, mask; 3152 int valid; 3153 3154 /* Zero memory first so it's always consistent. */ 3155 memset(data, 0, sizeof(*data)); 3156 3157 if (!(fsp->flow_type & FLOW_EXT)) 3158 return 0; 3159 3160 value = be64_to_cpu(*((__be64 *)fsp->h_ext.data)); 3161 mask = be64_to_cpu(*((__be64 *)fsp->m_ext.data)); 3162 3163#define I40E_USERDEF_FLEX_WORD GENMASK_ULL(15, 0) 3164#define I40E_USERDEF_FLEX_OFFSET GENMASK_ULL(31, 16) 3165#define I40E_USERDEF_FLEX_FILTER GENMASK_ULL(31, 0) 3166 3167 valid = i40e_check_mask(mask, I40E_USERDEF_FLEX_FILTER); 3168 if (valid < 0) { 3169 return -EINVAL; 3170 } else if (valid) { 3171 data->flex_word = value & I40E_USERDEF_FLEX_WORD; 3172 data->flex_offset = 3173 (value & I40E_USERDEF_FLEX_OFFSET) >> 16; 3174 data->flex_filter = true; 3175 } 3176 3177 return 0; 3178} 3179 3180/** 3181 * i40e_fill_rx_flow_user_data - Fill in user-defined data field 3182 * @fsp: pointer to rx_flow specification 3183 * @data: pointer to return userdef data 3184 * 3185 * Reads the userdef data structure and properly fills in the user defined 3186 * fields of the rx_flow_spec. 3187 **/ 3188static void i40e_fill_rx_flow_user_data(struct ethtool_rx_flow_spec *fsp, 3189 struct i40e_rx_flow_userdef *data) 3190{ 3191 u64 value = 0, mask = 0; 3192 3193 if (data->flex_filter) { 3194 value |= data->flex_word; 3195 value |= (u64)data->flex_offset << 16; 3196 mask |= I40E_USERDEF_FLEX_FILTER; 3197 } 3198 3199 if (value || mask) 3200 fsp->flow_type |= FLOW_EXT; 3201 3202 *((__be64 *)fsp->h_ext.data) = cpu_to_be64(value); 3203 *((__be64 *)fsp->m_ext.data) = cpu_to_be64(mask); 3204} 3205 3206/** 3207 * i40e_get_ethtool_fdir_all - Populates the rule count of a command 3208 * @pf: Pointer to the physical function struct 3209 * @cmd: The command to get or set Rx flow classification rules 3210 * @rule_locs: Array of used rule locations 3211 * 3212 * This function populates both the total and actual rule count of 3213 * the ethtool flow classification command 3214 * 3215 * Returns 0 on success or -EMSGSIZE if entry not found 3216 **/ 3217static int i40e_get_ethtool_fdir_all(struct i40e_pf *pf, 3218 struct ethtool_rxnfc *cmd, 3219 u32 *rule_locs) 3220{ 3221 struct i40e_fdir_filter *rule; 3222 struct hlist_node *node2; 3223 int cnt = 0; 3224 3225 /* report total rule count */ 3226 cmd->data = i40e_get_fd_cnt_all(pf); 3227 3228 hlist_for_each_entry_safe(rule, node2, 3229 &pf->fdir_filter_list, fdir_node) { 3230 if (cnt == cmd->rule_cnt) 3231 return -EMSGSIZE; 3232 3233 rule_locs[cnt] = rule->fd_id; 3234 cnt++; 3235 } 3236 3237 cmd->rule_cnt = cnt; 3238 3239 return 0; 3240} 3241 3242/** 3243 * i40e_get_ethtool_fdir_entry - Look up a filter based on Rx flow 3244 * @pf: Pointer to the physical function struct 3245 * @cmd: The command to get or set Rx flow classification rules 3246 * 3247 * This function looks up a filter based on the Rx flow classification 3248 * command and fills the flow spec info for it if found 3249 * 3250 * Returns 0 on success or -EINVAL if filter not found 3251 **/ 3252static int i40e_get_ethtool_fdir_entry(struct i40e_pf *pf, 3253 struct ethtool_rxnfc *cmd) 3254{ 3255 struct ethtool_rx_flow_spec *fsp = 3256 (struct ethtool_rx_flow_spec *)&cmd->fs; 3257 struct i40e_rx_flow_userdef userdef = {0}; 3258 struct i40e_fdir_filter *rule = NULL; 3259 struct hlist_node *node2; 3260 u64 input_set; 3261 u16 index; 3262 3263 hlist_for_each_entry_safe(rule, node2, 3264 &pf->fdir_filter_list, fdir_node) { 3265 if (fsp->location <= rule->fd_id) 3266 break; 3267 } 3268 3269 if (!rule || fsp->location != rule->fd_id) 3270 return -EINVAL; 3271 3272 fsp->flow_type = rule->flow_type; 3273 if (fsp->flow_type == IP_USER_FLOW) { 3274 fsp->h_u.usr_ip4_spec.ip_ver = ETH_RX_NFC_IP4; 3275 fsp->h_u.usr_ip4_spec.proto = 0; 3276 fsp->m_u.usr_ip4_spec.proto = 0; 3277 } 3278 3279 /* Reverse the src and dest notion, since the HW views them from 3280 * Tx perspective where as the user expects it from Rx filter view. 3281 */ 3282 fsp->h_u.tcp_ip4_spec.psrc = rule->dst_port; 3283 fsp->h_u.tcp_ip4_spec.pdst = rule->src_port; 3284 fsp->h_u.tcp_ip4_spec.ip4src = rule->dst_ip; 3285 fsp->h_u.tcp_ip4_spec.ip4dst = rule->src_ip; 3286 3287 switch (rule->flow_type) { 3288 case SCTP_V4_FLOW: 3289 index = I40E_FILTER_PCTYPE_NONF_IPV4_SCTP; 3290 break; 3291 case TCP_V4_FLOW: 3292 index = I40E_FILTER_PCTYPE_NONF_IPV4_TCP; 3293 break; 3294 case UDP_V4_FLOW: 3295 index = I40E_FILTER_PCTYPE_NONF_IPV4_UDP; 3296 break; 3297 case IP_USER_FLOW: 3298 index = I40E_FILTER_PCTYPE_NONF_IPV4_OTHER; 3299 break; 3300 default: 3301 /* If we have stored a filter with a flow type not listed here 3302 * it is almost certainly a driver bug. WARN(), and then 3303 * assign the input_set as if all fields are enabled to avoid 3304 * reading unassigned memory. 3305 */ 3306 WARN(1, "Missing input set index for flow_type %d\n", 3307 rule->flow_type); 3308 input_set = 0xFFFFFFFFFFFFFFFFULL; 3309 goto no_input_set; 3310 } 3311 3312 input_set = i40e_read_fd_input_set(pf, index); 3313 3314no_input_set: 3315 if (input_set & I40E_L3_SRC_MASK) 3316 fsp->m_u.tcp_ip4_spec.ip4src = htonl(0xFFFFFFFF); 3317 3318 if (input_set & I40E_L3_DST_MASK) 3319 fsp->m_u.tcp_ip4_spec.ip4dst = htonl(0xFFFFFFFF); 3320 3321 if (input_set & I40E_L4_SRC_MASK) 3322 fsp->m_u.tcp_ip4_spec.psrc = htons(0xFFFF); 3323 3324 if (input_set & I40E_L4_DST_MASK) 3325 fsp->m_u.tcp_ip4_spec.pdst = htons(0xFFFF); 3326 3327 if (rule->dest_ctl == I40E_FILTER_PROGRAM_DESC_DEST_DROP_PACKET) 3328 fsp->ring_cookie = RX_CLS_FLOW_DISC; 3329 else 3330 fsp->ring_cookie = rule->q_index; 3331 3332 if (rule->dest_vsi != pf->vsi[pf->lan_vsi]->id) { 3333 struct i40e_vsi *vsi; 3334 3335 vsi = i40e_find_vsi_from_id(pf, rule->dest_vsi); 3336 if (vsi && vsi->type == I40E_VSI_SRIOV) { 3337 /* VFs are zero-indexed by the driver, but ethtool 3338 * expects them to be one-indexed, so add one here 3339 */ 3340 u64 ring_vf = vsi->vf_id + 1; 3341 3342 ring_vf <<= ETHTOOL_RX_FLOW_SPEC_RING_VF_OFF; 3343 fsp->ring_cookie |= ring_vf; 3344 } 3345 } 3346 3347 if (rule->flex_filter) { 3348 userdef.flex_filter = true; 3349 userdef.flex_word = be16_to_cpu(rule->flex_word); 3350 userdef.flex_offset = rule->flex_offset; 3351 } 3352 3353 i40e_fill_rx_flow_user_data(fsp, &userdef); 3354 3355 return 0; 3356} 3357 3358/** 3359 * i40e_get_rxnfc - command to get RX flow classification rules 3360 * @netdev: network interface device structure 3361 * @cmd: ethtool rxnfc command 3362 * @rule_locs: pointer to store rule data 3363 * 3364 * Returns Success if the command is supported. 3365 **/ 3366static int i40e_get_rxnfc(struct net_device *netdev, struct ethtool_rxnfc *cmd, 3367 u32 *rule_locs) 3368{ 3369 struct i40e_netdev_priv *np = netdev_priv(netdev); 3370 struct i40e_vsi *vsi = np->vsi; 3371 struct i40e_pf *pf = vsi->back; 3372 int ret = -EOPNOTSUPP; 3373 3374 switch (cmd->cmd) { 3375 case ETHTOOL_GRXRINGS: 3376 cmd->data = vsi->rss_size; 3377 ret = 0; 3378 break; 3379 case ETHTOOL_GRXFH: 3380 ret = i40e_get_rss_hash_opts(pf, cmd); 3381 break; 3382 case ETHTOOL_GRXCLSRLCNT: 3383 cmd->rule_cnt = pf->fdir_pf_active_filters; 3384 /* report total rule count */ 3385 cmd->data = i40e_get_fd_cnt_all(pf); 3386 ret = 0; 3387 break; 3388 case ETHTOOL_GRXCLSRULE: 3389 ret = i40e_get_ethtool_fdir_entry(pf, cmd); 3390 break; 3391 case ETHTOOL_GRXCLSRLALL: 3392 ret = i40e_get_ethtool_fdir_all(pf, cmd, rule_locs); 3393 break; 3394 default: 3395 break; 3396 } 3397 3398 return ret; 3399} 3400 3401/** 3402 * i40e_get_rss_hash_bits - Read RSS Hash bits from register 3403 * @hw: hw structure 3404 * @nfc: pointer to user request 3405 * @i_setc: bits currently set 3406 * 3407 * Returns value of bits to be set per user request 3408 **/ 3409static u64 i40e_get_rss_hash_bits(struct i40e_hw *hw, 3410 struct ethtool_rxnfc *nfc, 3411 u64 i_setc) 3412{ 3413 u64 i_set = i_setc; 3414 u64 src_l3 = 0, dst_l3 = 0; 3415 3416 if (nfc->data & RXH_L4_B_0_1) 3417 i_set |= I40E_L4_SRC_MASK; 3418 else 3419 i_set &= ~I40E_L4_SRC_MASK; 3420 if (nfc->data & RXH_L4_B_2_3) 3421 i_set |= I40E_L4_DST_MASK; 3422 else 3423 i_set &= ~I40E_L4_DST_MASK; 3424 3425 if (nfc->flow_type == TCP_V6_FLOW || nfc->flow_type == UDP_V6_FLOW) { 3426 src_l3 = I40E_L3_V6_SRC_MASK; 3427 dst_l3 = I40E_L3_V6_DST_MASK; 3428 } else if (nfc->flow_type == TCP_V4_FLOW || 3429 nfc->flow_type == UDP_V4_FLOW) { 3430 if (hw->mac.type == I40E_MAC_X722) { 3431 src_l3 = I40E_X722_L3_SRC_MASK; 3432 dst_l3 = I40E_X722_L3_DST_MASK; 3433 } else { 3434 src_l3 = I40E_L3_SRC_MASK; 3435 dst_l3 = I40E_L3_DST_MASK; 3436 } 3437 } else { 3438 /* Any other flow type are not supported here */ 3439 return i_set; 3440 } 3441 3442 if (nfc->data & RXH_IP_SRC) 3443 i_set |= src_l3; 3444 else 3445 i_set &= ~src_l3; 3446 if (nfc->data & RXH_IP_DST) 3447 i_set |= dst_l3; 3448 else 3449 i_set &= ~dst_l3; 3450 3451 return i_set; 3452} 3453 3454#define FLOW_PCTYPES_SIZE 64 3455/** 3456 * i40e_set_rss_hash_opt - Enable/Disable flow types for RSS hash 3457 * @pf: pointer to the physical function struct 3458 * @nfc: ethtool rxnfc command 3459 * 3460 * Returns Success if the flow input set is supported. 3461 **/ 3462static int i40e_set_rss_hash_opt(struct i40e_pf *pf, struct ethtool_rxnfc *nfc) 3463{ 3464 struct i40e_hw *hw = &pf->hw; 3465 u64 hena = (u64)i40e_read_rx_ctl(hw, I40E_PFQF_HENA(0)) | 3466 ((u64)i40e_read_rx_ctl(hw, I40E_PFQF_HENA(1)) << 32); 3467 DECLARE_BITMAP(flow_pctypes, FLOW_PCTYPES_SIZE); 3468 u64 i_set, i_setc; 3469 3470 bitmap_zero(flow_pctypes, FLOW_PCTYPES_SIZE); 3471 3472 if (pf->flags & I40E_FLAG_MFP_ENABLED) { 3473 dev_err(&pf->pdev->dev, 3474 "Change of RSS hash input set is not supported when MFP mode is enabled\n"); 3475 return -EOPNOTSUPP; 3476 } 3477 3478 /* RSS does not support anything other than hashing 3479 * to queues on src and dst IPs and ports 3480 */ 3481 if (nfc->data & ~(RXH_IP_SRC | RXH_IP_DST | 3482 RXH_L4_B_0_1 | RXH_L4_B_2_3)) 3483 return -EINVAL; 3484 3485 switch (nfc->flow_type) { 3486 case TCP_V4_FLOW: 3487 set_bit(I40E_FILTER_PCTYPE_NONF_IPV4_TCP, flow_pctypes); 3488 if (pf->hw_features & I40E_HW_MULTIPLE_TCP_UDP_RSS_PCTYPE) 3489 set_bit(I40E_FILTER_PCTYPE_NONF_IPV4_TCP_SYN_NO_ACK, 3490 flow_pctypes); 3491 break; 3492 case TCP_V6_FLOW: 3493 set_bit(I40E_FILTER_PCTYPE_NONF_IPV6_TCP, flow_pctypes); 3494 if (pf->hw_features & I40E_HW_MULTIPLE_TCP_UDP_RSS_PCTYPE) 3495 set_bit(I40E_FILTER_PCTYPE_NONF_IPV6_TCP_SYN_NO_ACK, 3496 flow_pctypes); 3497 break; 3498 case UDP_V4_FLOW: 3499 set_bit(I40E_FILTER_PCTYPE_NONF_IPV4_UDP, flow_pctypes); 3500 if (pf->hw_features & I40E_HW_MULTIPLE_TCP_UDP_RSS_PCTYPE) { 3501 set_bit(I40E_FILTER_PCTYPE_NONF_UNICAST_IPV4_UDP, 3502 flow_pctypes); 3503 set_bit(I40E_FILTER_PCTYPE_NONF_MULTICAST_IPV4_UDP, 3504 flow_pctypes); 3505 } 3506 hena |= BIT_ULL(I40E_FILTER_PCTYPE_FRAG_IPV4); 3507 break; 3508 case UDP_V6_FLOW: 3509 set_bit(I40E_FILTER_PCTYPE_NONF_IPV6_UDP, flow_pctypes); 3510 if (pf->hw_features & I40E_HW_MULTIPLE_TCP_UDP_RSS_PCTYPE) { 3511 set_bit(I40E_FILTER_PCTYPE_NONF_UNICAST_IPV6_UDP, 3512 flow_pctypes); 3513 set_bit(I40E_FILTER_PCTYPE_NONF_MULTICAST_IPV6_UDP, 3514 flow_pctypes); 3515 } 3516 hena |= BIT_ULL(I40E_FILTER_PCTYPE_FRAG_IPV6); 3517 break; 3518 case AH_ESP_V4_FLOW: 3519 case AH_V4_FLOW: 3520 case ESP_V4_FLOW: 3521 case SCTP_V4_FLOW: 3522 if ((nfc->data & RXH_L4_B_0_1) || 3523 (nfc->data & RXH_L4_B_2_3)) 3524 return -EINVAL; 3525 hena |= BIT_ULL(I40E_FILTER_PCTYPE_NONF_IPV4_OTHER); 3526 break; 3527 case AH_ESP_V6_FLOW: 3528 case AH_V6_FLOW: 3529 case ESP_V6_FLOW: 3530 case SCTP_V6_FLOW: 3531 if ((nfc->data & RXH_L4_B_0_1) || 3532 (nfc->data & RXH_L4_B_2_3)) 3533 return -EINVAL; 3534 hena |= BIT_ULL(I40E_FILTER_PCTYPE_NONF_IPV6_OTHER); 3535 break; 3536 case IPV4_FLOW: 3537 hena |= BIT_ULL(I40E_FILTER_PCTYPE_NONF_IPV4_OTHER) | 3538 BIT_ULL(I40E_FILTER_PCTYPE_FRAG_IPV4); 3539 break; 3540 case IPV6_FLOW: 3541 hena |= BIT_ULL(I40E_FILTER_PCTYPE_NONF_IPV6_OTHER) | 3542 BIT_ULL(I40E_FILTER_PCTYPE_FRAG_IPV6); 3543 break; 3544 default: 3545 return -EINVAL; 3546 } 3547 3548 if (bitmap_weight(flow_pctypes, FLOW_PCTYPES_SIZE)) { 3549 u8 flow_id; 3550 3551 for_each_set_bit(flow_id, flow_pctypes, FLOW_PCTYPES_SIZE) { 3552 i_setc = (u64)i40e_read_rx_ctl(hw, I40E_GLQF_HASH_INSET(0, flow_id)) | 3553 ((u64)i40e_read_rx_ctl(hw, I40E_GLQF_HASH_INSET(1, flow_id)) << 32); 3554 i_set = i40e_get_rss_hash_bits(&pf->hw, nfc, i_setc); 3555 3556 i40e_write_rx_ctl(hw, I40E_GLQF_HASH_INSET(0, flow_id), 3557 (u32)i_set); 3558 i40e_write_rx_ctl(hw, I40E_GLQF_HASH_INSET(1, flow_id), 3559 (u32)(i_set >> 32)); 3560 hena |= BIT_ULL(flow_id); 3561 } 3562 } 3563 3564 i40e_write_rx_ctl(hw, I40E_PFQF_HENA(0), (u32)hena); 3565 i40e_write_rx_ctl(hw, I40E_PFQF_HENA(1), (u32)(hena >> 32)); 3566 i40e_flush(hw); 3567 3568 return 0; 3569} 3570 3571/** 3572 * i40e_update_ethtool_fdir_entry - Updates the fdir filter entry 3573 * @vsi: Pointer to the targeted VSI 3574 * @input: The filter to update or NULL to indicate deletion 3575 * @sw_idx: Software index to the filter 3576 * @cmd: The command to get or set Rx flow classification rules 3577 * 3578 * This function updates (or deletes) a Flow Director entry from 3579 * the hlist of the corresponding PF 3580 * 3581 * Returns 0 on success 3582 **/ 3583static int i40e_update_ethtool_fdir_entry(struct i40e_vsi *vsi, 3584 struct i40e_fdir_filter *input, 3585 u16 sw_idx, 3586 struct ethtool_rxnfc *cmd) 3587{ 3588 struct i40e_fdir_filter *rule, *parent; 3589 struct i40e_pf *pf = vsi->back; 3590 struct hlist_node *node2; 3591 int err = -EINVAL; 3592 3593 parent = NULL; 3594 rule = NULL; 3595 3596 hlist_for_each_entry_safe(rule, node2, 3597 &pf->fdir_filter_list, fdir_node) { 3598 /* hash found, or no matching entry */ 3599 if (rule->fd_id >= sw_idx) 3600 break; 3601 parent = rule; 3602 } 3603 3604 /* if there is an old rule occupying our place remove it */ 3605 if (rule && (rule->fd_id == sw_idx)) { 3606 /* Remove this rule, since we're either deleting it, or 3607 * replacing it. 3608 */ 3609 err = i40e_add_del_fdir(vsi, rule, false); 3610 hlist_del(&rule->fdir_node); 3611 kfree(rule); 3612 pf->fdir_pf_active_filters--; 3613 } 3614 3615 /* If we weren't given an input, this is a delete, so just return the 3616 * error code indicating if there was an entry at the requested slot 3617 */ 3618 if (!input) 3619 return err; 3620 3621 /* Otherwise, install the new rule as requested */ 3622 INIT_HLIST_NODE(&input->fdir_node); 3623 3624 /* add filter to the list */ 3625 if (parent) 3626 hlist_add_behind(&input->fdir_node, &parent->fdir_node); 3627 else 3628 hlist_add_head(&input->fdir_node, 3629 &pf->fdir_filter_list); 3630 3631 /* update counts */ 3632 pf->fdir_pf_active_filters++; 3633 3634 return 0; 3635} 3636 3637/** 3638 * i40e_prune_flex_pit_list - Cleanup unused entries in FLX_PIT table 3639 * @pf: pointer to PF structure 3640 * 3641 * This function searches the list of filters and determines which FLX_PIT 3642 * entries are still required. It will prune any entries which are no longer 3643 * in use after the deletion. 3644 **/ 3645static void i40e_prune_flex_pit_list(struct i40e_pf *pf) 3646{ 3647 struct i40e_flex_pit *entry, *tmp; 3648 struct i40e_fdir_filter *rule; 3649 3650 /* First, we'll check the l3 table */ 3651 list_for_each_entry_safe(entry, tmp, &pf->l3_flex_pit_list, list) { 3652 bool found = false; 3653 3654 hlist_for_each_entry(rule, &pf->fdir_filter_list, fdir_node) { 3655 if (rule->flow_type != IP_USER_FLOW) 3656 continue; 3657 if (rule->flex_filter && 3658 rule->flex_offset == entry->src_offset) { 3659 found = true; 3660 break; 3661 } 3662 } 3663 3664 /* If we didn't find the filter, then we can prune this entry 3665 * from the list. 3666 */ 3667 if (!found) { 3668 list_del(&entry->list); 3669 kfree(entry); 3670 } 3671 } 3672 3673 /* Followed by the L4 table */ 3674 list_for_each_entry_safe(entry, tmp, &pf->l4_flex_pit_list, list) { 3675 bool found = false; 3676 3677 hlist_for_each_entry(rule, &pf->fdir_filter_list, fdir_node) { 3678 /* Skip this filter if it's L3, since we already 3679 * checked those in the above loop 3680 */ 3681 if (rule->flow_type == IP_USER_FLOW) 3682 continue; 3683 if (rule->flex_filter && 3684 rule->flex_offset == entry->src_offset) { 3685 found = true; 3686 break; 3687 } 3688 } 3689 3690 /* If we didn't find the filter, then we can prune this entry 3691 * from the list. 3692 */ 3693 if (!found) { 3694 list_del(&entry->list); 3695 kfree(entry); 3696 } 3697 } 3698} 3699 3700/** 3701 * i40e_del_fdir_entry - Deletes a Flow Director filter entry 3702 * @vsi: Pointer to the targeted VSI 3703 * @cmd: The command to get or set Rx flow classification rules 3704 * 3705 * The function removes a Flow Director filter entry from the 3706 * hlist of the corresponding PF 3707 * 3708 * Returns 0 on success 3709 */ 3710static int i40e_del_fdir_entry(struct i40e_vsi *vsi, 3711 struct ethtool_rxnfc *cmd) 3712{ 3713 struct ethtool_rx_flow_spec *fsp = 3714 (struct ethtool_rx_flow_spec *)&cmd->fs; 3715 struct i40e_pf *pf = vsi->back; 3716 int ret = 0; 3717 3718 if (test_bit(__I40E_RESET_RECOVERY_PENDING, pf->state) || 3719 test_bit(__I40E_RESET_INTR_RECEIVED, pf->state)) 3720 return -EBUSY; 3721 3722 if (test_bit(__I40E_FD_FLUSH_REQUESTED, pf->state)) 3723 return -EBUSY; 3724 3725 ret = i40e_update_ethtool_fdir_entry(vsi, NULL, fsp->location, cmd); 3726 3727 i40e_prune_flex_pit_list(pf); 3728 3729 i40e_fdir_check_and_reenable(pf); 3730 return ret; 3731} 3732 3733/** 3734 * i40e_unused_pit_index - Find an unused PIT index for given list 3735 * @pf: the PF data structure 3736 * 3737 * Find the first unused flexible PIT index entry. We search both the L3 and 3738 * L4 flexible PIT lists so that the returned index is unique and unused by 3739 * either currently programmed L3 or L4 filters. We use a bit field as storage 3740 * to track which indexes are already used. 3741 **/ 3742static u8 i40e_unused_pit_index(struct i40e_pf *pf) 3743{ 3744 unsigned long available_index = 0xFF; 3745 struct i40e_flex_pit *entry; 3746 3747 /* We need to make sure that the new index isn't in use by either L3 3748 * or L4 filters so that IP_USER_FLOW filters can program both L3 and 3749 * L4 to use the same index. 3750 */ 3751 3752 list_for_each_entry(entry, &pf->l4_flex_pit_list, list) 3753 clear_bit(entry->pit_index, &available_index); 3754 3755 list_for_each_entry(entry, &pf->l3_flex_pit_list, list) 3756 clear_bit(entry->pit_index, &available_index); 3757 3758 return find_first_bit(&available_index, 8); 3759} 3760 3761/** 3762 * i40e_find_flex_offset - Find an existing flex src_offset 3763 * @flex_pit_list: L3 or L4 flex PIT list 3764 * @src_offset: new src_offset to find 3765 * 3766 * Searches the flex_pit_list for an existing offset. If no offset is 3767 * currently programmed, then this will return an ERR_PTR if there is no space 3768 * to add a new offset, otherwise it returns NULL. 3769 **/ 3770static 3771struct i40e_flex_pit *i40e_find_flex_offset(struct list_head *flex_pit_list, 3772 u16 src_offset) 3773{ 3774 struct i40e_flex_pit *entry; 3775 int size = 0; 3776 3777 /* Search for the src_offset first. If we find a matching entry 3778 * already programmed, we can simply re-use it. 3779 */ 3780 list_for_each_entry(entry, flex_pit_list, list) { 3781 size++; 3782 if (entry->src_offset == src_offset) 3783 return entry; 3784 } 3785 3786 /* If we haven't found an entry yet, then the provided src offset has 3787 * not yet been programmed. We will program the src offset later on, 3788 * but we need to indicate whether there is enough space to do so 3789 * here. We'll make use of ERR_PTR for this purpose. 3790 */ 3791 if (size >= I40E_FLEX_PIT_TABLE_SIZE) 3792 return ERR_PTR(-ENOSPC); 3793 3794 return NULL; 3795} 3796 3797/** 3798 * i40e_add_flex_offset - Add src_offset to flex PIT table list 3799 * @flex_pit_list: L3 or L4 flex PIT list 3800 * @src_offset: new src_offset to add 3801 * @pit_index: the PIT index to program 3802 * 3803 * This function programs the new src_offset to the list. It is expected that 3804 * i40e_find_flex_offset has already been tried and returned NULL, indicating 3805 * that this offset is not programmed, and that the list has enough space to 3806 * store another offset. 3807 * 3808 * Returns 0 on success, and negative value on error. 3809 **/ 3810static int i40e_add_flex_offset(struct list_head *flex_pit_list, 3811 u16 src_offset, 3812 u8 pit_index) 3813{ 3814 struct i40e_flex_pit *new_pit, *entry; 3815 3816 new_pit = kzalloc(sizeof(*entry), GFP_KERNEL); 3817 if (!new_pit) 3818 return -ENOMEM; 3819 3820 new_pit->src_offset = src_offset; 3821 new_pit->pit_index = pit_index; 3822 3823 /* We need to insert this item such that the list is sorted by 3824 * src_offset in ascending order. 3825 */ 3826 list_for_each_entry(entry, flex_pit_list, list) { 3827 if (new_pit->src_offset < entry->src_offset) { 3828 list_add_tail(&new_pit->list, &entry->list); 3829 return 0; 3830 } 3831 3832 /* If we found an entry with our offset already programmed we 3833 * can simply return here, after freeing the memory. However, 3834 * if the pit_index does not match we need to report an error. 3835 */ 3836 if (new_pit->src_offset == entry->src_offset) { 3837 int err = 0; 3838 3839 /* If the PIT index is not the same we can't re-use 3840 * the entry, so we must report an error. 3841 */ 3842 if (new_pit->pit_index != entry->pit_index) 3843 err = -EINVAL; 3844 3845 kfree(new_pit); 3846 return err; 3847 } 3848 } 3849 3850 /* If we reached here, then we haven't yet added the item. This means 3851 * that we should add the item at the end of the list. 3852 */ 3853 list_add_tail(&new_pit->list, flex_pit_list); 3854 return 0; 3855} 3856 3857/** 3858 * __i40e_reprogram_flex_pit - Re-program specific FLX_PIT table 3859 * @pf: Pointer to the PF structure 3860 * @flex_pit_list: list of flexible src offsets in use 3861 * @flex_pit_start: index to first entry for this section of the table 3862 * 3863 * In order to handle flexible data, the hardware uses a table of values 3864 * called the FLX_PIT table. This table is used to indicate which sections of 3865 * the input correspond to what PIT index values. Unfortunately, hardware is 3866 * very restrictive about programming this table. Entries must be ordered by 3867 * src_offset in ascending order, without duplicates. Additionally, unused 3868 * entries must be set to the unused index value, and must have valid size and 3869 * length according to the src_offset ordering. 3870 * 3871 * This function will reprogram the FLX_PIT register from a book-keeping 3872 * structure that we guarantee is already ordered correctly, and has no more 3873 * than 3 entries. 3874 * 3875 * To make things easier, we only support flexible values of one word length, 3876 * rather than allowing variable length flexible values. 3877 **/ 3878static void __i40e_reprogram_flex_pit(struct i40e_pf *pf, 3879 struct list_head *flex_pit_list, 3880 int flex_pit_start) 3881{ 3882 struct i40e_flex_pit *entry = NULL; 3883 u16 last_offset = 0; 3884 int i = 0, j = 0; 3885 3886 /* First, loop over the list of flex PIT entries, and reprogram the 3887 * registers. 3888 */ 3889 list_for_each_entry(entry, flex_pit_list, list) { 3890 /* We have to be careful when programming values for the 3891 * largest SRC_OFFSET value. It is possible that adding 3892 * additional empty values at the end would overflow the space 3893 * for the SRC_OFFSET in the FLX_PIT register. To avoid this, 3894 * we check here and add the empty values prior to adding the 3895 * largest value. 3896 * 3897 * To determine this, we will use a loop from i+1 to 3, which 3898 * will determine whether the unused entries would have valid 3899 * SRC_OFFSET. Note that there cannot be extra entries past 3900 * this value, because the only valid values would have been 3901 * larger than I40E_MAX_FLEX_SRC_OFFSET, and thus would not 3902 * have been added to the list in the first place. 3903 */ 3904 for (j = i + 1; j < 3; j++) { 3905 u16 offset = entry->src_offset + j; 3906 int index = flex_pit_start + i; 3907 u32 value = I40E_FLEX_PREP_VAL(I40E_FLEX_DEST_UNUSED, 3908 1, 3909 offset - 3); 3910 3911 if (offset > I40E_MAX_FLEX_SRC_OFFSET) { 3912 i40e_write_rx_ctl(&pf->hw, 3913 I40E_PRTQF_FLX_PIT(index), 3914 value); 3915 i++; 3916 } 3917 } 3918 3919 /* Now, we can program the actual value into the table */ 3920 i40e_write_rx_ctl(&pf->hw, 3921 I40E_PRTQF_FLX_PIT(flex_pit_start + i), 3922 I40E_FLEX_PREP_VAL(entry->pit_index + 50, 3923 1, 3924 entry->src_offset)); 3925 i++; 3926 } 3927 3928 /* In order to program the last entries in the table, we need to 3929 * determine the valid offset. If the list is empty, we'll just start 3930 * with 0. Otherwise, we'll start with the last item offset and add 1. 3931 * This ensures that all entries have valid sizes. If we don't do this 3932 * correctly, the hardware will disable flexible field parsing. 3933 */ 3934 if (!list_empty(flex_pit_list)) 3935 last_offset = list_prev_entry(entry, list)->src_offset + 1; 3936 3937 for (; i < 3; i++, last_offset++) { 3938 i40e_write_rx_ctl(&pf->hw, 3939 I40E_PRTQF_FLX_PIT(flex_pit_start + i), 3940 I40E_FLEX_PREP_VAL(I40E_FLEX_DEST_UNUSED, 3941 1, 3942 last_offset)); 3943 } 3944} 3945 3946/** 3947 * i40e_reprogram_flex_pit - Reprogram all FLX_PIT tables after input set change 3948 * @pf: pointer to the PF structure 3949 * 3950 * This function reprograms both the L3 and L4 FLX_PIT tables. See the 3951 * internal helper function for implementation details. 3952 **/ 3953static void i40e_reprogram_flex_pit(struct i40e_pf *pf) 3954{ 3955 __i40e_reprogram_flex_pit(pf, &pf->l3_flex_pit_list, 3956 I40E_FLEX_PIT_IDX_START_L3); 3957 3958 __i40e_reprogram_flex_pit(pf, &pf->l4_flex_pit_list, 3959 I40E_FLEX_PIT_IDX_START_L4); 3960 3961 /* We also need to program the L3 and L4 GLQF ORT register */ 3962 i40e_write_rx_ctl(&pf->hw, 3963 I40E_GLQF_ORT(I40E_L3_GLQF_ORT_IDX), 3964 I40E_ORT_PREP_VAL(I40E_FLEX_PIT_IDX_START_L3, 3965 3, 1)); 3966 3967 i40e_write_rx_ctl(&pf->hw, 3968 I40E_GLQF_ORT(I40E_L4_GLQF_ORT_IDX), 3969 I40E_ORT_PREP_VAL(I40E_FLEX_PIT_IDX_START_L4, 3970 3, 1)); 3971} 3972 3973/** 3974 * i40e_flow_str - Converts a flow_type into a human readable string 3975 * @fsp: the flow specification 3976 * 3977 * Currently only flow types we support are included here, and the string 3978 * value attempts to match what ethtool would use to configure this flow type. 3979 **/ 3980static const char *i40e_flow_str(struct ethtool_rx_flow_spec *fsp) 3981{ 3982 switch (fsp->flow_type & ~FLOW_EXT) { 3983 case TCP_V4_FLOW: 3984 return "tcp4"; 3985 case UDP_V4_FLOW: 3986 return "udp4"; 3987 case SCTP_V4_FLOW: 3988 return "sctp4"; 3989 case IP_USER_FLOW: 3990 return "ip4"; 3991 default: 3992 return "unknown"; 3993 } 3994} 3995 3996/** 3997 * i40e_pit_index_to_mask - Return the FLEX mask for a given PIT index 3998 * @pit_index: PIT index to convert 3999 * 4000 * Returns the mask for a given PIT index. Will return 0 if the pit_index is 4001 * of range. 4002 **/ 4003static u64 i40e_pit_index_to_mask(int pit_index) 4004{ 4005 switch (pit_index) { 4006 case 0: 4007 return I40E_FLEX_50_MASK; 4008 case 1: 4009 return I40E_FLEX_51_MASK; 4010 case 2: 4011 return I40E_FLEX_52_MASK; 4012 case 3: 4013 return I40E_FLEX_53_MASK; 4014 case 4: 4015 return I40E_FLEX_54_MASK; 4016 case 5: 4017 return I40E_FLEX_55_MASK; 4018 case 6: 4019 return I40E_FLEX_56_MASK; 4020 case 7: 4021 return I40E_FLEX_57_MASK; 4022 default: 4023 return 0; 4024 } 4025} 4026 4027/** 4028 * i40e_print_input_set - Show changes between two input sets 4029 * @vsi: the vsi being configured 4030 * @old: the old input set 4031 * @new: the new input set 4032 * 4033 * Print the difference between old and new input sets by showing which series 4034 * of words are toggled on or off. Only displays the bits we actually support 4035 * changing. 4036 **/ 4037static void i40e_print_input_set(struct i40e_vsi *vsi, u64 old, u64 new) 4038{ 4039 struct i40e_pf *pf = vsi->back; 4040 bool old_value, new_value; 4041 int i; 4042 4043 old_value = !!(old & I40E_L3_SRC_MASK); 4044 new_value = !!(new & I40E_L3_SRC_MASK); 4045 if (old_value != new_value) 4046 netif_info(pf, drv, vsi->netdev, "L3 source address: %s -> %s\n", 4047 old_value ? "ON" : "OFF", 4048 new_value ? "ON" : "OFF"); 4049 4050 old_value = !!(old & I40E_L3_DST_MASK); 4051 new_value = !!(new & I40E_L3_DST_MASK); 4052 if (old_value != new_value) 4053 netif_info(pf, drv, vsi->netdev, "L3 destination address: %s -> %s\n", 4054 old_value ? "ON" : "OFF", 4055 new_value ? "ON" : "OFF"); 4056 4057 old_value = !!(old & I40E_L4_SRC_MASK); 4058 new_value = !!(new & I40E_L4_SRC_MASK); 4059 if (old_value != new_value) 4060 netif_info(pf, drv, vsi->netdev, "L4 source port: %s -> %s\n", 4061 old_value ? "ON" : "OFF", 4062 new_value ? "ON" : "OFF"); 4063 4064 old_value = !!(old & I40E_L4_DST_MASK); 4065 new_value = !!(new & I40E_L4_DST_MASK); 4066 if (old_value != new_value) 4067 netif_info(pf, drv, vsi->netdev, "L4 destination port: %s -> %s\n", 4068 old_value ? "ON" : "OFF", 4069 new_value ? "ON" : "OFF"); 4070 4071 old_value = !!(old & I40E_VERIFY_TAG_MASK); 4072 new_value = !!(new & I40E_VERIFY_TAG_MASK); 4073 if (old_value != new_value) 4074 netif_info(pf, drv, vsi->netdev, "SCTP verification tag: %s -> %s\n", 4075 old_value ? "ON" : "OFF", 4076 new_value ? "ON" : "OFF"); 4077 4078 /* Show change of flexible filter entries */ 4079 for (i = 0; i < I40E_FLEX_INDEX_ENTRIES; i++) { 4080 u64 flex_mask = i40e_pit_index_to_mask(i); 4081 4082 old_value = !!(old & flex_mask); 4083 new_value = !!(new & flex_mask); 4084 if (old_value != new_value) 4085 netif_info(pf, drv, vsi->netdev, "FLEX index %d: %s -> %s\n", 4086 i, 4087 old_value ? "ON" : "OFF", 4088 new_value ? "ON" : "OFF"); 4089 } 4090 4091 netif_info(pf, drv, vsi->netdev, " Current input set: %0llx\n", 4092 old); 4093 netif_info(pf, drv, vsi->netdev, "Requested input set: %0llx\n", 4094 new); 4095} 4096 4097/** 4098 * i40e_check_fdir_input_set - Check that a given rx_flow_spec mask is valid 4099 * @vsi: pointer to the targeted VSI 4100 * @fsp: pointer to Rx flow specification 4101 * @userdef: userdefined data from flow specification 4102 * 4103 * Ensures that a given ethtool_rx_flow_spec has a valid mask. Some support 4104 * for partial matches exists with a few limitations. First, hardware only 4105 * supports masking by word boundary (2 bytes) and not per individual bit. 4106 * Second, hardware is limited to using one mask for a flow type and cannot 4107 * use a separate mask for each filter. 4108 * 4109 * To support these limitations, if we already have a configured filter for 4110 * the specified type, this function enforces that new filters of the type 4111 * match the configured input set. Otherwise, if we do not have a filter of 4112 * the specified type, we allow the input set to be updated to match the 4113 * desired filter. 4114 * 4115 * To help ensure that administrators understand why filters weren't displayed 4116 * as supported, we print a diagnostic message displaying how the input set 4117 * would change and warning to delete the preexisting filters if required. 4118 * 4119 * Returns 0 on successful input set match, and a negative return code on 4120 * failure. 4121 **/ 4122static int i40e_check_fdir_input_set(struct i40e_vsi *vsi, 4123 struct ethtool_rx_flow_spec *fsp, 4124 struct i40e_rx_flow_userdef *userdef) 4125{ 4126 struct i40e_pf *pf = vsi->back; 4127 struct ethtool_tcpip4_spec *tcp_ip4_spec; 4128 struct ethtool_usrip4_spec *usr_ip4_spec; 4129 u64 current_mask, new_mask; 4130 bool new_flex_offset = false; 4131 bool flex_l3 = false; 4132 u16 *fdir_filter_count; 4133 u16 index, src_offset = 0; 4134 u8 pit_index = 0; 4135 int err; 4136 4137 switch (fsp->flow_type & ~FLOW_EXT) { 4138 case SCTP_V4_FLOW: 4139 index = I40E_FILTER_PCTYPE_NONF_IPV4_SCTP; 4140 fdir_filter_count = &pf->fd_sctp4_filter_cnt; 4141 break; 4142 case TCP_V4_FLOW: 4143 index = I40E_FILTER_PCTYPE_NONF_IPV4_TCP; 4144 fdir_filter_count = &pf->fd_tcp4_filter_cnt; 4145 break; 4146 case UDP_V4_FLOW: 4147 index = I40E_FILTER_PCTYPE_NONF_IPV4_UDP; 4148 fdir_filter_count = &pf->fd_udp4_filter_cnt; 4149 break; 4150 case IP_USER_FLOW: 4151 index = I40E_FILTER_PCTYPE_NONF_IPV4_OTHER; 4152 fdir_filter_count = &pf->fd_ip4_filter_cnt; 4153 flex_l3 = true; 4154 break; 4155 default: 4156 return -EOPNOTSUPP; 4157 } 4158 4159 /* Read the current input set from register memory. */ 4160 current_mask = i40e_read_fd_input_set(pf, index); 4161 new_mask = current_mask; 4162 4163 /* Determine, if any, the required changes to the input set in order 4164 * to support the provided mask. 4165 * 4166 * Hardware only supports masking at word (2 byte) granularity and does 4167 * not support full bitwise masking. This implementation simplifies 4168 * even further and only supports fully enabled or fully disabled 4169 * masks for each field, even though we could split the ip4src and 4170 * ip4dst fields. 4171 */ 4172 switch (fsp->flow_type & ~FLOW_EXT) { 4173 case SCTP_V4_FLOW: 4174 new_mask &= ~I40E_VERIFY_TAG_MASK; 4175 fallthrough; 4176 case TCP_V4_FLOW: 4177 case UDP_V4_FLOW: 4178 tcp_ip4_spec = &fsp->m_u.tcp_ip4_spec; 4179 4180 /* IPv4 source address */ 4181 if (tcp_ip4_spec->ip4src == htonl(0xFFFFFFFF)) 4182 new_mask |= I40E_L3_SRC_MASK; 4183 else if (!tcp_ip4_spec->ip4src) 4184 new_mask &= ~I40E_L3_SRC_MASK; 4185 else 4186 return -EOPNOTSUPP; 4187 4188 /* IPv4 destination address */ 4189 if (tcp_ip4_spec->ip4dst == htonl(0xFFFFFFFF)) 4190 new_mask |= I40E_L3_DST_MASK; 4191 else if (!tcp_ip4_spec->ip4dst) 4192 new_mask &= ~I40E_L3_DST_MASK; 4193 else 4194 return -EOPNOTSUPP; 4195 4196 /* L4 source port */ 4197 if (tcp_ip4_spec->psrc == htons(0xFFFF)) 4198 new_mask |= I40E_L4_SRC_MASK; 4199 else if (!tcp_ip4_spec->psrc) 4200 new_mask &= ~I40E_L4_SRC_MASK; 4201 else 4202 return -EOPNOTSUPP; 4203 4204 /* L4 destination port */ 4205 if (tcp_ip4_spec->pdst == htons(0xFFFF)) 4206 new_mask |= I40E_L4_DST_MASK; 4207 else if (!tcp_ip4_spec->pdst) 4208 new_mask &= ~I40E_L4_DST_MASK; 4209 else 4210 return -EOPNOTSUPP; 4211 4212 /* Filtering on Type of Service is not supported. */ 4213 if (tcp_ip4_spec->tos) 4214 return -EOPNOTSUPP; 4215 4216 break; 4217 case IP_USER_FLOW: 4218 usr_ip4_spec = &fsp->m_u.usr_ip4_spec; 4219 4220 /* IPv4 source address */ 4221 if (usr_ip4_spec->ip4src == htonl(0xFFFFFFFF)) 4222 new_mask |= I40E_L3_SRC_MASK; 4223 else if (!usr_ip4_spec->ip4src) 4224 new_mask &= ~I40E_L3_SRC_MASK; 4225 else 4226 return -EOPNOTSUPP; 4227 4228 /* IPv4 destination address */ 4229 if (usr_ip4_spec->ip4dst == htonl(0xFFFFFFFF)) 4230 new_mask |= I40E_L3_DST_MASK; 4231 else if (!usr_ip4_spec->ip4dst) 4232 new_mask &= ~I40E_L3_DST_MASK; 4233 else 4234 return -EOPNOTSUPP; 4235 4236 /* First 4 bytes of L4 header */ 4237 if (usr_ip4_spec->l4_4_bytes) 4238 return -EOPNOTSUPP; 4239 4240 /* Filtering on Type of Service is not supported. */ 4241 if (usr_ip4_spec->tos) 4242 return -EOPNOTSUPP; 4243 4244 /* Filtering on IP version is not supported */ 4245 if (usr_ip4_spec->ip_ver) 4246 return -EINVAL; 4247 4248 /* Filtering on L4 protocol is not supported */ 4249 if (usr_ip4_spec->proto) 4250 return -EINVAL; 4251 4252 break; 4253 default: 4254 return -EOPNOTSUPP; 4255 } 4256 4257 /* First, clear all flexible filter entries */ 4258 new_mask &= ~I40E_FLEX_INPUT_MASK; 4259 4260 /* If we have a flexible filter, try to add this offset to the correct 4261 * flexible filter PIT list. Once finished, we can update the mask. 4262 * If the src_offset changed, we will get a new mask value which will 4263 * trigger an input set change. 4264 */ 4265 if (userdef->flex_filter) { 4266 struct i40e_flex_pit *l3_flex_pit = NULL, *flex_pit = NULL; 4267 4268 /* Flexible offset must be even, since the flexible payload 4269 * must be aligned on 2-byte boundary. 4270 */ 4271 if (userdef->flex_offset & 0x1) { 4272 dev_warn(&pf->pdev->dev, 4273 "Flexible data offset must be 2-byte aligned\n"); 4274 return -EINVAL; 4275 } 4276 4277 src_offset = userdef->flex_offset >> 1; 4278 4279 /* FLX_PIT source offset value is only so large */ 4280 if (src_offset > I40E_MAX_FLEX_SRC_OFFSET) { 4281 dev_warn(&pf->pdev->dev, 4282 "Flexible data must reside within first 64 bytes of the packet payload\n"); 4283 return -EINVAL; 4284 } 4285 4286 /* See if this offset has already been programmed. If we get 4287 * an ERR_PTR, then the filter is not safe to add. Otherwise, 4288 * if we get a NULL pointer, this means we will need to add 4289 * the offset. 4290 */ 4291 flex_pit = i40e_find_flex_offset(&pf->l4_flex_pit_list, 4292 src_offset); 4293 if (IS_ERR(flex_pit)) 4294 return PTR_ERR(flex_pit); 4295 4296 /* IP_USER_FLOW filters match both L4 (ICMP) and L3 (unknown) 4297 * packet types, and thus we need to program both L3 and L4 4298 * flexible values. These must have identical flexible index, 4299 * as otherwise we can't correctly program the input set. So 4300 * we'll find both an L3 and L4 index and make sure they are 4301 * the same. 4302 */ 4303 if (flex_l3) { 4304 l3_flex_pit = 4305 i40e_find_flex_offset(&pf->l3_flex_pit_list, 4306 src_offset); 4307 if (IS_ERR(l3_flex_pit)) 4308 return PTR_ERR(l3_flex_pit); 4309 4310 if (flex_pit) { 4311 /* If we already had a matching L4 entry, we 4312 * need to make sure that the L3 entry we 4313 * obtained uses the same index. 4314 */ 4315 if (l3_flex_pit) { 4316 if (l3_flex_pit->pit_index != 4317 flex_pit->pit_index) { 4318 return -EINVAL; 4319 } 4320 } else { 4321 new_flex_offset = true; 4322 } 4323 } else { 4324 flex_pit = l3_flex_pit; 4325 } 4326 } 4327 4328 /* If we didn't find an existing flex offset, we need to 4329 * program a new one. However, we don't immediately program it 4330 * here because we will wait to program until after we check 4331 * that it is safe to change the input set. 4332 */ 4333 if (!flex_pit) { 4334 new_flex_offset = true; 4335 pit_index = i40e_unused_pit_index(pf); 4336 } else { 4337 pit_index = flex_pit->pit_index; 4338 } 4339 4340 /* Update the mask with the new offset */ 4341 new_mask |= i40e_pit_index_to_mask(pit_index); 4342 } 4343 4344 /* If the mask and flexible filter offsets for this filter match the 4345 * currently programmed values we don't need any input set change, so 4346 * this filter is safe to install. 4347 */ 4348 if (new_mask == current_mask && !new_flex_offset) 4349 return 0; 4350 4351 netif_info(pf, drv, vsi->netdev, "Input set change requested for %s flows:\n", 4352 i40e_flow_str(fsp)); 4353 i40e_print_input_set(vsi, current_mask, new_mask); 4354 if (new_flex_offset) { 4355 netif_info(pf, drv, vsi->netdev, "FLEX index %d: Offset -> %d", 4356 pit_index, src_offset); 4357 } 4358 4359 /* Hardware input sets are global across multiple ports, so even the 4360 * main port cannot change them when in MFP mode as this would impact 4361 * any filters on the other ports. 4362 */ 4363 if (pf->flags & I40E_FLAG_MFP_ENABLED) { 4364 netif_err(pf, drv, vsi->netdev, "Cannot change Flow Director input sets while MFP is enabled\n"); 4365 return -EOPNOTSUPP; 4366 } 4367 4368 /* This filter requires us to update the input set. However, hardware 4369 * only supports one input set per flow type, and does not support 4370 * separate masks for each filter. This means that we can only support 4371 * a single mask for all filters of a specific type. 4372 * 4373 * If we have preexisting filters, they obviously depend on the 4374 * current programmed input set. Display a diagnostic message in this 4375 * case explaining why the filter could not be accepted. 4376 */ 4377 if (*fdir_filter_count) { 4378 netif_err(pf, drv, vsi->netdev, "Cannot change input set for %s flows until %d preexisting filters are removed\n", 4379 i40e_flow_str(fsp), 4380 *fdir_filter_count); 4381 return -EOPNOTSUPP; 4382 } 4383 4384 i40e_write_fd_input_set(pf, index, new_mask); 4385 4386 /* IP_USER_FLOW filters match both IPv4/Other and IPv4/Fragmented 4387 * frames. If we're programming the input set for IPv4/Other, we also 4388 * need to program the IPv4/Fragmented input set. Since we don't have 4389 * separate support, we'll always assume and enforce that the two flow 4390 * types must have matching input sets. 4391 */ 4392 if (index == I40E_FILTER_PCTYPE_NONF_IPV4_OTHER) 4393 i40e_write_fd_input_set(pf, I40E_FILTER_PCTYPE_FRAG_IPV4, 4394 new_mask); 4395 4396 /* Add the new offset and update table, if necessary */ 4397 if (new_flex_offset) { 4398 err = i40e_add_flex_offset(&pf->l4_flex_pit_list, src_offset, 4399 pit_index); 4400 if (err) 4401 return err; 4402 4403 if (flex_l3) { 4404 err = i40e_add_flex_offset(&pf->l3_flex_pit_list, 4405 src_offset, 4406 pit_index); 4407 if (err) 4408 return err; 4409 } 4410 4411 i40e_reprogram_flex_pit(pf); 4412 } 4413 4414 return 0; 4415} 4416 4417/** 4418 * i40e_match_fdir_filter - Return true of two filters match 4419 * @a: pointer to filter struct 4420 * @b: pointer to filter struct 4421 * 4422 * Returns true if the two filters match exactly the same criteria. I.e. they 4423 * match the same flow type and have the same parameters. We don't need to 4424 * check any input-set since all filters of the same flow type must use the 4425 * same input set. 4426 **/ 4427static bool i40e_match_fdir_filter(struct i40e_fdir_filter *a, 4428 struct i40e_fdir_filter *b) 4429{ 4430 /* The filters do not much if any of these criteria differ. */ 4431 if (a->dst_ip != b->dst_ip || 4432 a->src_ip != b->src_ip || 4433 a->dst_port != b->dst_port || 4434 a->src_port != b->src_port || 4435 a->flow_type != b->flow_type || 4436 a->ip4_proto != b->ip4_proto) 4437 return false; 4438 4439 return true; 4440} 4441 4442/** 4443 * i40e_disallow_matching_filters - Check that new filters differ 4444 * @vsi: pointer to the targeted VSI 4445 * @input: new filter to check 4446 * 4447 * Due to hardware limitations, it is not possible for two filters that match 4448 * similar criteria to be programmed at the same time. This is true for a few 4449 * reasons: 4450 * 4451 * (a) all filters matching a particular flow type must use the same input 4452 * set, that is they must match the same criteria. 4453 * (b) different flow types will never match the same packet, as the flow type 4454 * is decided by hardware before checking which rules apply. 4455 * (c) hardware has no way to distinguish which order filters apply in. 4456 * 4457 * Due to this, we can't really support using the location data to order 4458 * filters in the hardware parsing. It is technically possible for the user to 4459 * request two filters matching the same criteria but which select different 4460 * queues. In this case, rather than keep both filters in the list, we reject 4461 * the 2nd filter when the user requests adding it. 4462 * 4463 * This avoids needing to track location for programming the filter to 4464 * hardware, and ensures that we avoid some strange scenarios involving 4465 * deleting filters which match the same criteria. 4466 **/ 4467static int i40e_disallow_matching_filters(struct i40e_vsi *vsi, 4468 struct i40e_fdir_filter *input) 4469{ 4470 struct i40e_pf *pf = vsi->back; 4471 struct i40e_fdir_filter *rule; 4472 struct hlist_node *node2; 4473 4474 /* Loop through every filter, and check that it doesn't match */ 4475 hlist_for_each_entry_safe(rule, node2, 4476 &pf->fdir_filter_list, fdir_node) { 4477 /* Don't check the filters match if they share the same fd_id, 4478 * since the new filter is actually just updating the target 4479 * of the old filter. 4480 */ 4481 if (rule->fd_id == input->fd_id) 4482 continue; 4483 4484 /* If any filters match, then print a warning message to the 4485 * kernel message buffer and bail out. 4486 */ 4487 if (i40e_match_fdir_filter(rule, input)) { 4488 dev_warn(&pf->pdev->dev, 4489 "Existing user defined filter %d already matches this flow.\n", 4490 rule->fd_id); 4491 return -EINVAL; 4492 } 4493 } 4494 4495 return 0; 4496} 4497 4498/** 4499 * i40e_add_fdir_ethtool - Add/Remove Flow Director filters 4500 * @vsi: pointer to the targeted VSI 4501 * @cmd: command to get or set RX flow classification rules 4502 * 4503 * Add Flow Director filters for a specific flow spec based on their 4504 * protocol. Returns 0 if the filters were successfully added. 4505 **/ 4506static int i40e_add_fdir_ethtool(struct i40e_vsi *vsi, 4507 struct ethtool_rxnfc *cmd) 4508{ 4509 struct i40e_rx_flow_userdef userdef; 4510 struct ethtool_rx_flow_spec *fsp; 4511 struct i40e_fdir_filter *input; 4512 u16 dest_vsi = 0, q_index = 0; 4513 struct i40e_pf *pf; 4514 int ret = -EINVAL; 4515 u8 dest_ctl; 4516 4517 if (!vsi) 4518 return -EINVAL; 4519 pf = vsi->back; 4520 4521 if (!(pf->flags & I40E_FLAG_FD_SB_ENABLED)) 4522 return -EOPNOTSUPP; 4523 4524 if (test_bit(__I40E_FD_SB_AUTO_DISABLED, pf->state)) 4525 return -ENOSPC; 4526 4527 if (test_bit(__I40E_RESET_RECOVERY_PENDING, pf->state) || 4528 test_bit(__I40E_RESET_INTR_RECEIVED, pf->state)) 4529 return -EBUSY; 4530 4531 if (test_bit(__I40E_FD_FLUSH_REQUESTED, pf->state)) 4532 return -EBUSY; 4533 4534 fsp = (struct ethtool_rx_flow_spec *)&cmd->fs; 4535 4536 /* Parse the user-defined field */ 4537 if (i40e_parse_rx_flow_user_data(fsp, &userdef)) 4538 return -EINVAL; 4539 4540 /* Extended MAC field is not supported */ 4541 if (fsp->flow_type & FLOW_MAC_EXT) 4542 return -EINVAL; 4543 4544 ret = i40e_check_fdir_input_set(vsi, fsp, &userdef); 4545 if (ret) 4546 return ret; 4547 4548 if (fsp->location >= (pf->hw.func_caps.fd_filters_best_effort + 4549 pf->hw.func_caps.fd_filters_guaranteed)) { 4550 return -EINVAL; 4551 } 4552 4553 /* ring_cookie is either the drop index, or is a mask of the queue 4554 * index and VF id we wish to target. 4555 */ 4556 if (fsp->ring_cookie == RX_CLS_FLOW_DISC) { 4557 dest_ctl = I40E_FILTER_PROGRAM_DESC_DEST_DROP_PACKET; 4558 } else { 4559 u32 ring = ethtool_get_flow_spec_ring(fsp->ring_cookie); 4560 u8 vf = ethtool_get_flow_spec_ring_vf(fsp->ring_cookie); 4561 4562 if (!vf) { 4563 if (ring >= vsi->num_queue_pairs) 4564 return -EINVAL; 4565 dest_vsi = vsi->id; 4566 } else { 4567 /* VFs are zero-indexed, so we subtract one here */ 4568 vf--; 4569 4570 if (vf >= pf->num_alloc_vfs) 4571 return -EINVAL; 4572 if (ring >= pf->vf[vf].num_queue_pairs) 4573 return -EINVAL; 4574 dest_vsi = pf->vf[vf].lan_vsi_id; 4575 } 4576 dest_ctl = I40E_FILTER_PROGRAM_DESC_DEST_DIRECT_PACKET_QINDEX; 4577 q_index = ring; 4578 } 4579 4580 input = kzalloc(sizeof(*input), GFP_KERNEL); 4581 4582 if (!input) 4583 return -ENOMEM; 4584 4585 input->fd_id = fsp->location; 4586 input->q_index = q_index; 4587 input->dest_vsi = dest_vsi; 4588 input->dest_ctl = dest_ctl; 4589 input->fd_status = I40E_FILTER_PROGRAM_DESC_FD_STATUS_FD_ID; 4590 input->cnt_index = I40E_FD_SB_STAT_IDX(pf->hw.pf_id); 4591 input->dst_ip = fsp->h_u.tcp_ip4_spec.ip4src; 4592 input->src_ip = fsp->h_u.tcp_ip4_spec.ip4dst; 4593 input->flow_type = fsp->flow_type & ~FLOW_EXT; 4594 input->ip4_proto = fsp->h_u.usr_ip4_spec.proto; 4595 4596 /* Reverse the src and dest notion, since the HW expects them to be from 4597 * Tx perspective where as the input from user is from Rx filter view. 4598 */ 4599 input->dst_port = fsp->h_u.tcp_ip4_spec.psrc; 4600 input->src_port = fsp->h_u.tcp_ip4_spec.pdst; 4601 input->dst_ip = fsp->h_u.tcp_ip4_spec.ip4src; 4602 input->src_ip = fsp->h_u.tcp_ip4_spec.ip4dst; 4603 4604 if (userdef.flex_filter) { 4605 input->flex_filter = true; 4606 input->flex_word = cpu_to_be16(userdef.flex_word); 4607 input->flex_offset = userdef.flex_offset; 4608 } 4609 4610 /* Avoid programming two filters with identical match criteria. */ 4611 ret = i40e_disallow_matching_filters(vsi, input); 4612 if (ret) 4613 goto free_filter_memory; 4614 4615 /* Add the input filter to the fdir_input_list, possibly replacing 4616 * a previous filter. Do not free the input structure after adding it 4617 * to the list as this would cause a use-after-free bug. 4618 */ 4619 i40e_update_ethtool_fdir_entry(vsi, input, fsp->location, NULL); 4620 ret = i40e_add_del_fdir(vsi, input, true); 4621 if (ret) 4622 goto remove_sw_rule; 4623 return 0; 4624 4625remove_sw_rule: 4626 hlist_del(&input->fdir_node); 4627 pf->fdir_pf_active_filters--; 4628free_filter_memory: 4629 kfree(input); 4630 return ret; 4631} 4632 4633/** 4634 * i40e_set_rxnfc - command to set RX flow classification rules 4635 * @netdev: network interface device structure 4636 * @cmd: ethtool rxnfc command 4637 * 4638 * Returns Success if the command is supported. 4639 **/ 4640static int i40e_set_rxnfc(struct net_device *netdev, struct ethtool_rxnfc *cmd) 4641{ 4642 struct i40e_netdev_priv *np = netdev_priv(netdev); 4643 struct i40e_vsi *vsi = np->vsi; 4644 struct i40e_pf *pf = vsi->back; 4645 int ret = -EOPNOTSUPP; 4646 4647 switch (cmd->cmd) { 4648 case ETHTOOL_SRXFH: 4649 ret = i40e_set_rss_hash_opt(pf, cmd); 4650 break; 4651 case ETHTOOL_SRXCLSRLINS: 4652 ret = i40e_add_fdir_ethtool(vsi, cmd); 4653 break; 4654 case ETHTOOL_SRXCLSRLDEL: 4655 ret = i40e_del_fdir_entry(vsi, cmd); 4656 break; 4657 default: 4658 break; 4659 } 4660 4661 return ret; 4662} 4663 4664/** 4665 * i40e_max_channels - get Max number of combined channels supported 4666 * @vsi: vsi pointer 4667 **/ 4668static unsigned int i40e_max_channels(struct i40e_vsi *vsi) 4669{ 4670 /* TODO: This code assumes DCB and FD is disabled for now. */ 4671 return vsi->alloc_queue_pairs; 4672} 4673 4674/** 4675 * i40e_get_channels - Get the current channels enabled and max supported etc. 4676 * @dev: network interface device structure 4677 * @ch: ethtool channels structure 4678 * 4679 * We don't support separate tx and rx queues as channels. The other count 4680 * represents how many queues are being used for control. max_combined counts 4681 * how many queue pairs we can support. They may not be mapped 1 to 1 with 4682 * q_vectors since we support a lot more queue pairs than q_vectors. 4683 **/ 4684static void i40e_get_channels(struct net_device *dev, 4685 struct ethtool_channels *ch) 4686{ 4687 struct i40e_netdev_priv *np = netdev_priv(dev); 4688 struct i40e_vsi *vsi = np->vsi; 4689 struct i40e_pf *pf = vsi->back; 4690 4691 /* report maximum channels */ 4692 ch->max_combined = i40e_max_channels(vsi); 4693 4694 /* report info for other vector */ 4695 ch->other_count = (pf->flags & I40E_FLAG_FD_SB_ENABLED) ? 1 : 0; 4696 ch->max_other = ch->other_count; 4697 4698 /* Note: This code assumes DCB is disabled for now. */ 4699 ch->combined_count = vsi->num_queue_pairs; 4700} 4701 4702/** 4703 * i40e_set_channels - Set the new channels count. 4704 * @dev: network interface device structure 4705 * @ch: ethtool channels structure 4706 * 4707 * The new channels count may not be the same as requested by the user 4708 * since it gets rounded down to a power of 2 value. 4709 **/ 4710static int i40e_set_channels(struct net_device *dev, 4711 struct ethtool_channels *ch) 4712{ 4713 const u8 drop = I40E_FILTER_PROGRAM_DESC_DEST_DROP_PACKET; 4714 struct i40e_netdev_priv *np = netdev_priv(dev); 4715 unsigned int count = ch->combined_count; 4716 struct i40e_vsi *vsi = np->vsi; 4717 struct i40e_pf *pf = vsi->back; 4718 struct i40e_fdir_filter *rule; 4719 struct hlist_node *node2; 4720 int new_count; 4721 int err = 0; 4722 4723 /* We do not support setting channels for any other VSI at present */ 4724 if (vsi->type != I40E_VSI_MAIN) 4725 return -EINVAL; 4726 4727 /* We do not support setting channels via ethtool when TCs are 4728 * configured through mqprio 4729 */ 4730 if (pf->flags & I40E_FLAG_TC_MQPRIO) 4731 return -EINVAL; 4732 4733 /* verify they are not requesting separate vectors */ 4734 if (!count || ch->rx_count || ch->tx_count) 4735 return -EINVAL; 4736 4737 /* verify other_count has not changed */ 4738 if (ch->other_count != ((pf->flags & I40E_FLAG_FD_SB_ENABLED) ? 1 : 0)) 4739 return -EINVAL; 4740 4741 /* verify the number of channels does not exceed hardware limits */ 4742 if (count > i40e_max_channels(vsi)) 4743 return -EINVAL; 4744 4745 /* verify that the number of channels does not invalidate any current 4746 * flow director rules 4747 */ 4748 hlist_for_each_entry_safe(rule, node2, 4749 &pf->fdir_filter_list, fdir_node) { 4750 if (rule->dest_ctl != drop && count <= rule->q_index) { 4751 dev_warn(&pf->pdev->dev, 4752 "Existing user defined filter %d assigns flow to queue %d\n", 4753 rule->fd_id, rule->q_index); 4754 err = -EINVAL; 4755 } 4756 } 4757 4758 if (err) { 4759 dev_err(&pf->pdev->dev, 4760 "Existing filter rules must be deleted to reduce combined channel count to %d\n", 4761 count); 4762 return err; 4763 } 4764 4765 /* update feature limits from largest to smallest supported values */ 4766 /* TODO: Flow director limit, DCB etc */ 4767 4768 /* use rss_reconfig to rebuild with new queue count and update traffic 4769 * class queue mapping 4770 */ 4771 new_count = i40e_reconfig_rss_queues(pf, count); 4772 if (new_count > 0) 4773 return 0; 4774 else 4775 return -EINVAL; 4776} 4777 4778/** 4779 * i40e_get_rxfh_key_size - get the RSS hash key size 4780 * @netdev: network interface device structure 4781 * 4782 * Returns the table size. 4783 **/ 4784static u32 i40e_get_rxfh_key_size(struct net_device *netdev) 4785{ 4786 return I40E_HKEY_ARRAY_SIZE; 4787} 4788 4789/** 4790 * i40e_get_rxfh_indir_size - get the rx flow hash indirection table size 4791 * @netdev: network interface device structure 4792 * 4793 * Returns the table size. 4794 **/ 4795static u32 i40e_get_rxfh_indir_size(struct net_device *netdev) 4796{ 4797 return I40E_HLUT_ARRAY_SIZE; 4798} 4799 4800/** 4801 * i40e_get_rxfh - get the rx flow hash indirection table 4802 * @netdev: network interface device structure 4803 * @indir: indirection table 4804 * @key: hash key 4805 * @hfunc: hash function 4806 * 4807 * Reads the indirection table directly from the hardware. Returns 0 on 4808 * success. 4809 **/ 4810static int i40e_get_rxfh(struct net_device *netdev, u32 *indir, u8 *key, 4811 u8 *hfunc) 4812{ 4813 struct i40e_netdev_priv *np = netdev_priv(netdev); 4814 struct i40e_vsi *vsi = np->vsi; 4815 u8 *lut, *seed = NULL; 4816 int ret; 4817 u16 i; 4818 4819 if (hfunc) 4820 *hfunc = ETH_RSS_HASH_TOP; 4821 4822 if (!indir) 4823 return 0; 4824 4825 seed = key; 4826 lut = kzalloc(I40E_HLUT_ARRAY_SIZE, GFP_KERNEL); 4827 if (!lut) 4828 return -ENOMEM; 4829 ret = i40e_get_rss(vsi, seed, lut, I40E_HLUT_ARRAY_SIZE); 4830 if (ret) 4831 goto out; 4832 for (i = 0; i < I40E_HLUT_ARRAY_SIZE; i++) 4833 indir[i] = (u32)(lut[i]); 4834 4835out: 4836 kfree(lut); 4837 4838 return ret; 4839} 4840 4841/** 4842 * i40e_set_rxfh - set the rx flow hash indirection table 4843 * @netdev: network interface device structure 4844 * @indir: indirection table 4845 * @key: hash key 4846 * @hfunc: hash function to use 4847 * 4848 * Returns -EINVAL if the table specifies an invalid queue id, otherwise 4849 * returns 0 after programming the table. 4850 **/ 4851static int i40e_set_rxfh(struct net_device *netdev, const u32 *indir, 4852 const u8 *key, const u8 hfunc) 4853{ 4854 struct i40e_netdev_priv *np = netdev_priv(netdev); 4855 struct i40e_vsi *vsi = np->vsi; 4856 struct i40e_pf *pf = vsi->back; 4857 u8 *seed = NULL; 4858 u16 i; 4859 4860 if (hfunc != ETH_RSS_HASH_NO_CHANGE && hfunc != ETH_RSS_HASH_TOP) 4861 return -EOPNOTSUPP; 4862 4863 if (key) { 4864 if (!vsi->rss_hkey_user) { 4865 vsi->rss_hkey_user = kzalloc(I40E_HKEY_ARRAY_SIZE, 4866 GFP_KERNEL); 4867 if (!vsi->rss_hkey_user) 4868 return -ENOMEM; 4869 } 4870 memcpy(vsi->rss_hkey_user, key, I40E_HKEY_ARRAY_SIZE); 4871 seed = vsi->rss_hkey_user; 4872 } 4873 if (!vsi->rss_lut_user) { 4874 vsi->rss_lut_user = kzalloc(I40E_HLUT_ARRAY_SIZE, GFP_KERNEL); 4875 if (!vsi->rss_lut_user) 4876 return -ENOMEM; 4877 } 4878 4879 /* Each 32 bits pointed by 'indir' is stored with a lut entry */ 4880 if (indir) 4881 for (i = 0; i < I40E_HLUT_ARRAY_SIZE; i++) 4882 vsi->rss_lut_user[i] = (u8)(indir[i]); 4883 else 4884 i40e_fill_rss_lut(pf, vsi->rss_lut_user, I40E_HLUT_ARRAY_SIZE, 4885 vsi->rss_size); 4886 4887 return i40e_config_rss(vsi, seed, vsi->rss_lut_user, 4888 I40E_HLUT_ARRAY_SIZE); 4889} 4890 4891/** 4892 * i40e_get_priv_flags - report device private flags 4893 * @dev: network interface device structure 4894 * 4895 * The get string set count and the string set should be matched for each 4896 * flag returned. Add new strings for each flag to the i40e_gstrings_priv_flags 4897 * array. 4898 * 4899 * Returns a u32 bitmap of flags. 4900 **/ 4901static u32 i40e_get_priv_flags(struct net_device *dev) 4902{ 4903 struct i40e_netdev_priv *np = netdev_priv(dev); 4904 struct i40e_vsi *vsi = np->vsi; 4905 struct i40e_pf *pf = vsi->back; 4906 u32 i, j, ret_flags = 0; 4907 4908 for (i = 0; i < I40E_PRIV_FLAGS_STR_LEN; i++) { 4909 const struct i40e_priv_flags *priv_flags; 4910 4911 priv_flags = &i40e_gstrings_priv_flags[i]; 4912 4913 if (priv_flags->flag & pf->flags) 4914 ret_flags |= BIT(i); 4915 } 4916 4917 if (pf->hw.pf_id != 0) 4918 return ret_flags; 4919 4920 for (j = 0; j < I40E_GL_PRIV_FLAGS_STR_LEN; j++) { 4921 const struct i40e_priv_flags *priv_flags; 4922 4923 priv_flags = &i40e_gl_gstrings_priv_flags[j]; 4924 4925 if (priv_flags->flag & pf->flags) 4926 ret_flags |= BIT(i + j); 4927 } 4928 4929 return ret_flags; 4930} 4931 4932/** 4933 * i40e_set_priv_flags - set private flags 4934 * @dev: network interface device structure 4935 * @flags: bit flags to be set 4936 **/ 4937static int i40e_set_priv_flags(struct net_device *dev, u32 flags) 4938{ 4939 struct i40e_netdev_priv *np = netdev_priv(dev); 4940 u64 orig_flags, new_flags, changed_flags; 4941 enum i40e_admin_queue_err adq_err; 4942 struct i40e_vsi *vsi = np->vsi; 4943 struct i40e_pf *pf = vsi->back; 4944 u32 reset_needed = 0; 4945 i40e_status status; 4946 u32 i, j; 4947 4948 orig_flags = READ_ONCE(pf->flags); 4949 new_flags = orig_flags; 4950 4951 for (i = 0; i < I40E_PRIV_FLAGS_STR_LEN; i++) { 4952 const struct i40e_priv_flags *priv_flags; 4953 4954 priv_flags = &i40e_gstrings_priv_flags[i]; 4955 4956 if (flags & BIT(i)) 4957 new_flags |= priv_flags->flag; 4958 else 4959 new_flags &= ~(priv_flags->flag); 4960 4961 /* If this is a read-only flag, it can't be changed */ 4962 if (priv_flags->read_only && 4963 ((orig_flags ^ new_flags) & ~BIT(i))) 4964 return -EOPNOTSUPP; 4965 } 4966 4967 if (pf->hw.pf_id != 0) 4968 goto flags_complete; 4969 4970 for (j = 0; j < I40E_GL_PRIV_FLAGS_STR_LEN; j++) { 4971 const struct i40e_priv_flags *priv_flags; 4972 4973 priv_flags = &i40e_gl_gstrings_priv_flags[j]; 4974 4975 if (flags & BIT(i + j)) 4976 new_flags |= priv_flags->flag; 4977 else 4978 new_flags &= ~(priv_flags->flag); 4979 4980 /* If this is a read-only flag, it can't be changed */ 4981 if (priv_flags->read_only && 4982 ((orig_flags ^ new_flags) & ~BIT(i))) 4983 return -EOPNOTSUPP; 4984 } 4985 4986flags_complete: 4987 changed_flags = orig_flags ^ new_flags; 4988 4989 if (changed_flags & I40E_FLAG_DISABLE_FW_LLDP) 4990 reset_needed = I40E_PF_RESET_AND_REBUILD_FLAG; 4991 if (changed_flags & (I40E_FLAG_VEB_STATS_ENABLED | 4992 I40E_FLAG_LEGACY_RX | I40E_FLAG_SOURCE_PRUNING_DISABLED)) 4993 reset_needed = BIT(__I40E_PF_RESET_REQUESTED); 4994 4995 /* Before we finalize any flag changes, we need to perform some 4996 * checks to ensure that the changes are supported and safe. 4997 */ 4998 4999 /* ATR eviction is not supported on all devices */ 5000 if ((new_flags & I40E_FLAG_HW_ATR_EVICT_ENABLED) && 5001 !(pf->hw_features & I40E_HW_ATR_EVICT_CAPABLE)) 5002 return -EOPNOTSUPP; 5003 5004 /* If the driver detected FW LLDP was disabled on init, this flag could 5005 * be set, however we do not support _changing_ the flag: 5006 * - on XL710 if NPAR is enabled or FW API version < 1.7 5007 * - on X722 with FW API version < 1.6 5008 * There are situations where older FW versions/NPAR enabled PFs could 5009 * disable LLDP, however we _must_ not allow the user to enable/disable 5010 * LLDP with this flag on unsupported FW versions. 5011 */ 5012 if (changed_flags & I40E_FLAG_DISABLE_FW_LLDP) { 5013 if (!(pf->hw.flags & I40E_HW_FLAG_FW_LLDP_STOPPABLE)) { 5014 dev_warn(&pf->pdev->dev, 5015 "Device does not support changing FW LLDP\n"); 5016 return -EOPNOTSUPP; 5017 } 5018 } 5019 5020 if (changed_flags & I40E_FLAG_RS_FEC && 5021 pf->hw.device_id != I40E_DEV_ID_25G_SFP28 && 5022 pf->hw.device_id != I40E_DEV_ID_25G_B) { 5023 dev_warn(&pf->pdev->dev, 5024 "Device does not support changing FEC configuration\n"); 5025 return -EOPNOTSUPP; 5026 } 5027 5028 if (changed_flags & I40E_FLAG_BASE_R_FEC && 5029 pf->hw.device_id != I40E_DEV_ID_25G_SFP28 && 5030 pf->hw.device_id != I40E_DEV_ID_25G_B && 5031 pf->hw.device_id != I40E_DEV_ID_KX_X722) { 5032 dev_warn(&pf->pdev->dev, 5033 "Device does not support changing FEC configuration\n"); 5034 return -EOPNOTSUPP; 5035 } 5036 5037 /* Process any additional changes needed as a result of flag changes. 5038 * The changed_flags value reflects the list of bits that were 5039 * changed in the code above. 5040 */ 5041 5042 /* Flush current ATR settings if ATR was disabled */ 5043 if ((changed_flags & I40E_FLAG_FD_ATR_ENABLED) && 5044 !(new_flags & I40E_FLAG_FD_ATR_ENABLED)) { 5045 set_bit(__I40E_FD_ATR_AUTO_DISABLED, pf->state); 5046 set_bit(__I40E_FD_FLUSH_REQUESTED, pf->state); 5047 } 5048 5049 if (changed_flags & I40E_FLAG_TRUE_PROMISC_SUPPORT) { 5050 u16 sw_flags = 0, valid_flags = 0; 5051 int ret; 5052 5053 if (!(new_flags & I40E_FLAG_TRUE_PROMISC_SUPPORT)) 5054 sw_flags = I40E_AQ_SET_SWITCH_CFG_PROMISC; 5055 valid_flags = I40E_AQ_SET_SWITCH_CFG_PROMISC; 5056 ret = i40e_aq_set_switch_config(&pf->hw, sw_flags, valid_flags, 5057 0, NULL); 5058 if (ret && pf->hw.aq.asq_last_status != I40E_AQ_RC_ESRCH) { 5059 dev_info(&pf->pdev->dev, 5060 "couldn't set switch config bits, err %s aq_err %s\n", 5061 i40e_stat_str(&pf->hw, ret), 5062 i40e_aq_str(&pf->hw, 5063 pf->hw.aq.asq_last_status)); 5064 /* not a fatal problem, just keep going */ 5065 } 5066 } 5067 5068 if ((changed_flags & I40E_FLAG_RS_FEC) || 5069 (changed_flags & I40E_FLAG_BASE_R_FEC)) { 5070 u8 fec_cfg = 0; 5071 5072 if (new_flags & I40E_FLAG_RS_FEC && 5073 new_flags & I40E_FLAG_BASE_R_FEC) { 5074 fec_cfg = I40E_AQ_SET_FEC_AUTO; 5075 } else if (new_flags & I40E_FLAG_RS_FEC) { 5076 fec_cfg = (I40E_AQ_SET_FEC_REQUEST_RS | 5077 I40E_AQ_SET_FEC_ABILITY_RS); 5078 } else if (new_flags & I40E_FLAG_BASE_R_FEC) { 5079 fec_cfg = (I40E_AQ_SET_FEC_REQUEST_KR | 5080 I40E_AQ_SET_FEC_ABILITY_KR); 5081 } 5082 if (i40e_set_fec_cfg(dev, fec_cfg)) 5083 dev_warn(&pf->pdev->dev, "Cannot change FEC config\n"); 5084 } 5085 5086 if ((changed_flags & I40E_FLAG_LINK_DOWN_ON_CLOSE_ENABLED) && 5087 (orig_flags & I40E_FLAG_TOTAL_PORT_SHUTDOWN_ENABLED)) { 5088 dev_err(&pf->pdev->dev, 5089 "Setting link-down-on-close not supported on this port (because total-port-shutdown is enabled)\n"); 5090 return -EOPNOTSUPP; 5091 } 5092 5093 if ((changed_flags & new_flags & 5094 I40E_FLAG_LINK_DOWN_ON_CLOSE_ENABLED) && 5095 (new_flags & I40E_FLAG_MFP_ENABLED)) 5096 dev_warn(&pf->pdev->dev, 5097 "Turning on link-down-on-close flag may affect other partitions\n"); 5098 5099 if (changed_flags & I40E_FLAG_DISABLE_FW_LLDP) { 5100 if (new_flags & I40E_FLAG_DISABLE_FW_LLDP) { 5101 struct i40e_dcbx_config *dcbcfg; 5102 5103 i40e_aq_stop_lldp(&pf->hw, true, false, NULL); 5104 i40e_aq_set_dcb_parameters(&pf->hw, true, NULL); 5105 /* reset local_dcbx_config to default */ 5106 dcbcfg = &pf->hw.local_dcbx_config; 5107 dcbcfg->etscfg.willing = 1; 5108 dcbcfg->etscfg.maxtcs = 0; 5109 dcbcfg->etscfg.tcbwtable[0] = 100; 5110 for (i = 1; i < I40E_MAX_TRAFFIC_CLASS; i++) 5111 dcbcfg->etscfg.tcbwtable[i] = 0; 5112 for (i = 0; i < I40E_MAX_USER_PRIORITY; i++) 5113 dcbcfg->etscfg.prioritytable[i] = 0; 5114 dcbcfg->etscfg.tsatable[0] = I40E_IEEE_TSA_ETS; 5115 dcbcfg->pfc.willing = 1; 5116 dcbcfg->pfc.pfccap = I40E_MAX_TRAFFIC_CLASS; 5117 } else { 5118 status = i40e_aq_start_lldp(&pf->hw, false, NULL); 5119 if (status) { 5120 adq_err = pf->hw.aq.asq_last_status; 5121 switch (adq_err) { 5122 case I40E_AQ_RC_EEXIST: 5123 dev_warn(&pf->pdev->dev, 5124 "FW LLDP agent is already running\n"); 5125 reset_needed = 0; 5126 break; 5127 case I40E_AQ_RC_EPERM: 5128 dev_warn(&pf->pdev->dev, 5129 "Device configuration forbids SW from starting the LLDP agent.\n"); 5130 return -EINVAL; 5131 case I40E_AQ_RC_EAGAIN: 5132 dev_warn(&pf->pdev->dev, 5133 "Stop FW LLDP agent command is still being processed, please try again in a second.\n"); 5134 return -EBUSY; 5135 default: 5136 dev_warn(&pf->pdev->dev, 5137 "Starting FW LLDP agent failed: error: %s, %s\n", 5138 i40e_stat_str(&pf->hw, 5139 status), 5140 i40e_aq_str(&pf->hw, 5141 adq_err)); 5142 return -EINVAL; 5143 } 5144 } 5145 } 5146 } 5147 5148 /* Now that we've checked to ensure that the new flags are valid, load 5149 * them into place. Since we only modify flags either (a) during 5150 * initialization or (b) while holding the RTNL lock, we don't need 5151 * anything fancy here. 5152 */ 5153 pf->flags = new_flags; 5154 5155 /* Issue reset to cause things to take effect, as additional bits 5156 * are added we will need to create a mask of bits requiring reset 5157 */ 5158 if (reset_needed) 5159 i40e_do_reset(pf, reset_needed, true); 5160 5161 return 0; 5162} 5163 5164/** 5165 * i40e_get_module_info - get (Q)SFP+ module type info 5166 * @netdev: network interface device structure 5167 * @modinfo: module EEPROM size and layout information structure 5168 **/ 5169static int i40e_get_module_info(struct net_device *netdev, 5170 struct ethtool_modinfo *modinfo) 5171{ 5172 struct i40e_netdev_priv *np = netdev_priv(netdev); 5173 struct i40e_vsi *vsi = np->vsi; 5174 struct i40e_pf *pf = vsi->back; 5175 struct i40e_hw *hw = &pf->hw; 5176 u32 sff8472_comp = 0; 5177 u32 sff8472_swap = 0; 5178 u32 sff8636_rev = 0; 5179 i40e_status status; 5180 u32 type = 0; 5181 5182 /* Check if firmware supports reading module EEPROM. */ 5183 if (!(hw->flags & I40E_HW_FLAG_AQ_PHY_ACCESS_CAPABLE)) { 5184 netdev_err(vsi->netdev, "Module EEPROM memory read not supported. Please update the NVM image.\n"); 5185 return -EINVAL; 5186 } 5187 5188 status = i40e_update_link_info(hw); 5189 if (status) 5190 return -EIO; 5191 5192 if (hw->phy.link_info.phy_type == I40E_PHY_TYPE_EMPTY) { 5193 netdev_err(vsi->netdev, "Cannot read module EEPROM memory. No module connected.\n"); 5194 return -EINVAL; 5195 } 5196 5197 type = hw->phy.link_info.module_type[0]; 5198 5199 switch (type) { 5200 case I40E_MODULE_TYPE_SFP: 5201 status = i40e_aq_get_phy_register(hw, 5202 I40E_AQ_PHY_REG_ACCESS_EXTERNAL_MODULE, 5203 I40E_I2C_EEPROM_DEV_ADDR, true, 5204 I40E_MODULE_SFF_8472_COMP, 5205 &sff8472_comp, NULL); 5206 if (status) 5207 return -EIO; 5208 5209 status = i40e_aq_get_phy_register(hw, 5210 I40E_AQ_PHY_REG_ACCESS_EXTERNAL_MODULE, 5211 I40E_I2C_EEPROM_DEV_ADDR, true, 5212 I40E_MODULE_SFF_8472_SWAP, 5213 &sff8472_swap, NULL); 5214 if (status) 5215 return -EIO; 5216 5217 /* Check if the module requires address swap to access 5218 * the other EEPROM memory page. 5219 */ 5220 if (sff8472_swap & I40E_MODULE_SFF_ADDR_MODE) { 5221 netdev_warn(vsi->netdev, "Module address swap to access page 0xA2 is not supported.\n"); 5222 modinfo->type = ETH_MODULE_SFF_8079; 5223 modinfo->eeprom_len = ETH_MODULE_SFF_8079_LEN; 5224 } else if (sff8472_comp == 0x00) { 5225 /* Module is not SFF-8472 compliant */ 5226 modinfo->type = ETH_MODULE_SFF_8079; 5227 modinfo->eeprom_len = ETH_MODULE_SFF_8079_LEN; 5228 } else if (!(sff8472_swap & I40E_MODULE_SFF_DDM_IMPLEMENTED)) { 5229 /* Module is SFF-8472 compliant but doesn't implement 5230 * Digital Diagnostic Monitoring (DDM). 5231 */ 5232 modinfo->type = ETH_MODULE_SFF_8079; 5233 modinfo->eeprom_len = ETH_MODULE_SFF_8079_LEN; 5234 } else { 5235 modinfo->type = ETH_MODULE_SFF_8472; 5236 modinfo->eeprom_len = ETH_MODULE_SFF_8472_LEN; 5237 } 5238 break; 5239 case I40E_MODULE_TYPE_QSFP_PLUS: 5240 /* Read from memory page 0. */ 5241 status = i40e_aq_get_phy_register(hw, 5242 I40E_AQ_PHY_REG_ACCESS_EXTERNAL_MODULE, 5243 0, true, 5244 I40E_MODULE_REVISION_ADDR, 5245 &sff8636_rev, NULL); 5246 if (status) 5247 return -EIO; 5248 /* Determine revision compliance byte */ 5249 if (sff8636_rev > 0x02) { 5250 /* Module is SFF-8636 compliant */ 5251 modinfo->type = ETH_MODULE_SFF_8636; 5252 modinfo->eeprom_len = I40E_MODULE_QSFP_MAX_LEN; 5253 } else { 5254 modinfo->type = ETH_MODULE_SFF_8436; 5255 modinfo->eeprom_len = I40E_MODULE_QSFP_MAX_LEN; 5256 } 5257 break; 5258 case I40E_MODULE_TYPE_QSFP28: 5259 modinfo->type = ETH_MODULE_SFF_8636; 5260 modinfo->eeprom_len = I40E_MODULE_QSFP_MAX_LEN; 5261 break; 5262 default: 5263 netdev_err(vsi->netdev, "Module type unrecognized\n"); 5264 return -EINVAL; 5265 } 5266 return 0; 5267} 5268 5269/** 5270 * i40e_get_module_eeprom - fills buffer with (Q)SFP+ module memory contents 5271 * @netdev: network interface device structure 5272 * @ee: EEPROM dump request structure 5273 * @data: buffer to be filled with EEPROM contents 5274 **/ 5275static int i40e_get_module_eeprom(struct net_device *netdev, 5276 struct ethtool_eeprom *ee, 5277 u8 *data) 5278{ 5279 struct i40e_netdev_priv *np = netdev_priv(netdev); 5280 struct i40e_vsi *vsi = np->vsi; 5281 struct i40e_pf *pf = vsi->back; 5282 struct i40e_hw *hw = &pf->hw; 5283 bool is_sfp = false; 5284 i40e_status status; 5285 u32 value = 0; 5286 int i; 5287 5288 if (!ee || !ee->len || !data) 5289 return -EINVAL; 5290 5291 if (hw->phy.link_info.module_type[0] == I40E_MODULE_TYPE_SFP) 5292 is_sfp = true; 5293 5294 for (i = 0; i < ee->len; i++) { 5295 u32 offset = i + ee->offset; 5296 u32 addr = is_sfp ? I40E_I2C_EEPROM_DEV_ADDR : 0; 5297 5298 /* Check if we need to access the other memory page */ 5299 if (is_sfp) { 5300 if (offset >= ETH_MODULE_SFF_8079_LEN) { 5301 offset -= ETH_MODULE_SFF_8079_LEN; 5302 addr = I40E_I2C_EEPROM_DEV_ADDR2; 5303 } 5304 } else { 5305 while (offset >= ETH_MODULE_SFF_8436_LEN) { 5306 /* Compute memory page number and offset. */ 5307 offset -= ETH_MODULE_SFF_8436_LEN / 2; 5308 addr++; 5309 } 5310 } 5311 5312 status = i40e_aq_get_phy_register(hw, 5313 I40E_AQ_PHY_REG_ACCESS_EXTERNAL_MODULE, 5314 addr, true, offset, &value, NULL); 5315 if (status) 5316 return -EIO; 5317 data[i] = value; 5318 } 5319 return 0; 5320} 5321 5322static int i40e_get_eee(struct net_device *netdev, struct ethtool_eee *edata) 5323{ 5324 return -EOPNOTSUPP; 5325} 5326 5327static int i40e_set_eee(struct net_device *netdev, struct ethtool_eee *edata) 5328{ 5329 return -EOPNOTSUPP; 5330} 5331 5332static const struct ethtool_ops i40e_ethtool_recovery_mode_ops = { 5333 .get_drvinfo = i40e_get_drvinfo, 5334 .set_eeprom = i40e_set_eeprom, 5335 .get_eeprom_len = i40e_get_eeprom_len, 5336 .get_eeprom = i40e_get_eeprom, 5337}; 5338 5339static const struct ethtool_ops i40e_ethtool_ops = { 5340 .supported_coalesce_params = ETHTOOL_COALESCE_USECS | 5341 ETHTOOL_COALESCE_MAX_FRAMES_IRQ | 5342 ETHTOOL_COALESCE_USE_ADAPTIVE | 5343 ETHTOOL_COALESCE_RX_USECS_HIGH | 5344 ETHTOOL_COALESCE_TX_USECS_HIGH, 5345 .get_drvinfo = i40e_get_drvinfo, 5346 .get_regs_len = i40e_get_regs_len, 5347 .get_regs = i40e_get_regs, 5348 .nway_reset = i40e_nway_reset, 5349 .get_link = ethtool_op_get_link, 5350 .get_wol = i40e_get_wol, 5351 .set_wol = i40e_set_wol, 5352 .set_eeprom = i40e_set_eeprom, 5353 .get_eeprom_len = i40e_get_eeprom_len, 5354 .get_eeprom = i40e_get_eeprom, 5355 .get_ringparam = i40e_get_ringparam, 5356 .set_ringparam = i40e_set_ringparam, 5357 .get_pauseparam = i40e_get_pauseparam, 5358 .set_pauseparam = i40e_set_pauseparam, 5359 .get_msglevel = i40e_get_msglevel, 5360 .set_msglevel = i40e_set_msglevel, 5361 .get_rxnfc = i40e_get_rxnfc, 5362 .set_rxnfc = i40e_set_rxnfc, 5363 .self_test = i40e_diag_test, 5364 .get_strings = i40e_get_strings, 5365 .get_eee = i40e_get_eee, 5366 .set_eee = i40e_set_eee, 5367 .set_phys_id = i40e_set_phys_id, 5368 .get_sset_count = i40e_get_sset_count, 5369 .get_ethtool_stats = i40e_get_ethtool_stats, 5370 .get_coalesce = i40e_get_coalesce, 5371 .set_coalesce = i40e_set_coalesce, 5372 .get_rxfh_key_size = i40e_get_rxfh_key_size, 5373 .get_rxfh_indir_size = i40e_get_rxfh_indir_size, 5374 .get_rxfh = i40e_get_rxfh, 5375 .set_rxfh = i40e_set_rxfh, 5376 .get_channels = i40e_get_channels, 5377 .set_channels = i40e_set_channels, 5378 .get_module_info = i40e_get_module_info, 5379 .get_module_eeprom = i40e_get_module_eeprom, 5380 .get_ts_info = i40e_get_ts_info, 5381 .get_priv_flags = i40e_get_priv_flags, 5382 .set_priv_flags = i40e_set_priv_flags, 5383 .get_per_queue_coalesce = i40e_get_per_queue_coalesce, 5384 .set_per_queue_coalesce = i40e_set_per_queue_coalesce, 5385 .get_link_ksettings = i40e_get_link_ksettings, 5386 .set_link_ksettings = i40e_set_link_ksettings, 5387 .get_fecparam = i40e_get_fec_param, 5388 .set_fecparam = i40e_set_fec_param, 5389 .flash_device = i40e_ddp_flash, 5390}; 5391 5392void i40e_set_ethtool_ops(struct net_device *netdev) 5393{ 5394 struct i40e_netdev_priv *np = netdev_priv(netdev); 5395 struct i40e_pf *pf = np->vsi->back; 5396 5397 if (!test_bit(__I40E_RECOVERY_MODE, pf->state)) 5398 netdev->ethtool_ops = &i40e_ethtool_ops; 5399 else 5400 netdev->ethtool_ops = &i40e_ethtool_recovery_mode_ops; 5401} 5402