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 **/ 34 struct 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 */ 61 static 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 */ 76 static void 77 i40e_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 **/ 124 static 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 **/ 165 static void 166 i40e_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 **/ 199 static 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 * i40e_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) 241 242 static 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 }; 255 256 static 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 }; 270 271 struct 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 }; 277 278 static 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 }; 284 285 static 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 I40E_VSI_STAT("rx_cache_reuse", rx_page_reuse), 299 }; 300 301 /* These PF_STATs might look like duplicates of some NETDEV_STATs, 302 * but they are separate. This device supports Virtualization, and 303 * as such might have several netdevs supporting VMDq and FCoE going 304 * through a single port. The NETDEV_STATs are for individual netdevs 305 * seen at the top of the stack, and the PF_STATs are for the physical 306 * function at the bottom of the stack hosting those netdevs. 307 * 308 * The PF_STATs are appended to the netdev stats only when ethtool -S 309 * is queried on the base PF netdev, not on the VMDq or FCoE netdev. 310 */ 311 static const struct i40e_stats i40e_gstrings_stats[] = { 312 I40E_PF_STAT("port.rx_bytes", stats.eth.rx_bytes), 313 I40E_PF_STAT("port.tx_bytes", stats.eth.tx_bytes), 314 I40E_PF_STAT("port.rx_unicast", stats.eth.rx_unicast), 315 I40E_PF_STAT("port.tx_unicast", stats.eth.tx_unicast), 316 I40E_PF_STAT("port.rx_multicast", stats.eth.rx_multicast), 317 I40E_PF_STAT("port.tx_multicast", stats.eth.tx_multicast), 318 I40E_PF_STAT("port.rx_broadcast", stats.eth.rx_broadcast), 319 I40E_PF_STAT("port.tx_broadcast", stats.eth.tx_broadcast), 320 I40E_PF_STAT("port.tx_errors", stats.eth.tx_errors), 321 I40E_PF_STAT("port.rx_dropped", stats.eth.rx_discards), 322 I40E_PF_STAT("port.tx_dropped_link_down", stats.tx_dropped_link_down), 323 I40E_PF_STAT("port.rx_crc_errors", stats.crc_errors), 324 I40E_PF_STAT("port.illegal_bytes", stats.illegal_bytes), 325 I40E_PF_STAT("port.mac_local_faults", stats.mac_local_faults), 326 I40E_PF_STAT("port.mac_remote_faults", stats.mac_remote_faults), 327 I40E_PF_STAT("port.tx_timeout", tx_timeout_count), 328 I40E_PF_STAT("port.rx_csum_bad", hw_csum_rx_error), 329 I40E_PF_STAT("port.rx_length_errors", stats.rx_length_errors), 330 I40E_PF_STAT("port.link_xon_rx", stats.link_xon_rx), 331 I40E_PF_STAT("port.link_xoff_rx", stats.link_xoff_rx), 332 I40E_PF_STAT("port.link_xon_tx", stats.link_xon_tx), 333 I40E_PF_STAT("port.link_xoff_tx", stats.link_xoff_tx), 334 I40E_PF_STAT("port.rx_size_64", stats.rx_size_64), 335 I40E_PF_STAT("port.rx_size_127", stats.rx_size_127), 336 I40E_PF_STAT("port.rx_size_255", stats.rx_size_255), 337 I40E_PF_STAT("port.rx_size_511", stats.rx_size_511), 338 I40E_PF_STAT("port.rx_size_1023", stats.rx_size_1023), 339 I40E_PF_STAT("port.rx_size_1522", stats.rx_size_1522), 340 I40E_PF_STAT("port.rx_size_big", stats.rx_size_big), 341 I40E_PF_STAT("port.tx_size_64", stats.tx_size_64), 342 I40E_PF_STAT("port.tx_size_127", stats.tx_size_127), 343 I40E_PF_STAT("port.tx_size_255", stats.tx_size_255), 344 I40E_PF_STAT("port.tx_size_511", stats.tx_size_511), 345 I40E_PF_STAT("port.tx_size_1023", stats.tx_size_1023), 346 I40E_PF_STAT("port.tx_size_1522", stats.tx_size_1522), 347 I40E_PF_STAT("port.tx_size_big", stats.tx_size_big), 348 I40E_PF_STAT("port.rx_undersize", stats.rx_undersize), 349 I40E_PF_STAT("port.rx_fragments", stats.rx_fragments), 350 I40E_PF_STAT("port.rx_oversize", stats.rx_oversize), 351 I40E_PF_STAT("port.rx_jabber", stats.rx_jabber), 352 I40E_PF_STAT("port.VF_admin_queue_requests", vf_aq_requests), 353 I40E_PF_STAT("port.arq_overflows", arq_overflows), 354 I40E_PF_STAT("port.tx_hwtstamp_timeouts", tx_hwtstamp_timeouts), 355 I40E_PF_STAT("port.rx_hwtstamp_cleared", rx_hwtstamp_cleared), 356 I40E_PF_STAT("port.tx_hwtstamp_skipped", tx_hwtstamp_skipped), 357 I40E_PF_STAT("port.fdir_flush_cnt", fd_flush_cnt), 358 I40E_PF_STAT("port.fdir_atr_match", stats.fd_atr_match), 359 I40E_PF_STAT("port.fdir_atr_tunnel_match", stats.fd_atr_tunnel_match), 360 I40E_PF_STAT("port.fdir_atr_status", stats.fd_atr_status), 361 I40E_PF_STAT("port.fdir_sb_match", stats.fd_sb_match), 362 I40E_PF_STAT("port.fdir_sb_status", stats.fd_sb_status), 363 364 /* LPI stats */ 365 I40E_PF_STAT("port.tx_lpi_status", stats.tx_lpi_status), 366 I40E_PF_STAT("port.rx_lpi_status", stats.rx_lpi_status), 367 I40E_PF_STAT("port.tx_lpi_count", stats.tx_lpi_count), 368 I40E_PF_STAT("port.rx_lpi_count", stats.rx_lpi_count), 369 }; 370 371 struct i40e_pfc_stats { 372 u64 priority_xon_rx; 373 u64 priority_xoff_rx; 374 u64 priority_xon_tx; 375 u64 priority_xoff_tx; 376 u64 priority_xon_2_xoff; 377 }; 378 379 static const struct i40e_stats i40e_gstrings_pfc_stats[] = { 380 I40E_PFC_STAT("port.tx_priority_%u_xon_tx", priority_xon_tx), 381 I40E_PFC_STAT("port.tx_priority_%u_xoff_tx", priority_xoff_tx), 382 I40E_PFC_STAT("port.rx_priority_%u_xon_rx", priority_xon_rx), 383 I40E_PFC_STAT("port.rx_priority_%u_xoff_rx", priority_xoff_rx), 384 I40E_PFC_STAT("port.rx_priority_%u_xon_2_xoff", priority_xon_2_xoff), 385 }; 386 387 #define I40E_NETDEV_STATS_LEN ARRAY_SIZE(i40e_gstrings_net_stats) 388 389 #define I40E_MISC_STATS_LEN ARRAY_SIZE(i40e_gstrings_misc_stats) 390 391 #define I40E_VSI_STATS_LEN (I40E_NETDEV_STATS_LEN + I40E_MISC_STATS_LEN) 392 393 #define I40E_PFC_STATS_LEN (ARRAY_SIZE(i40e_gstrings_pfc_stats) * \ 394 I40E_MAX_USER_PRIORITY) 395 396 #define I40E_VEB_STATS_LEN (ARRAY_SIZE(i40e_gstrings_veb_stats) + \ 397 (ARRAY_SIZE(i40e_gstrings_veb_tc_stats) * \ 398 I40E_MAX_TRAFFIC_CLASS)) 399 400 #define I40E_GLOBAL_STATS_LEN ARRAY_SIZE(i40e_gstrings_stats) 401 402 #define I40E_PF_STATS_LEN (I40E_GLOBAL_STATS_LEN + \ 403 I40E_PFC_STATS_LEN + \ 404 I40E_VEB_STATS_LEN + \ 405 I40E_VSI_STATS_LEN) 406 407 /* Length of stats for a single queue */ 408 #define I40E_QUEUE_STATS_LEN ARRAY_SIZE(i40e_gstrings_queue_stats) 409 410 enum i40e_ethtool_test_id { 411 I40E_ETH_TEST_REG = 0, 412 I40E_ETH_TEST_EEPROM, 413 I40E_ETH_TEST_INTR, 414 I40E_ETH_TEST_LINK, 415 }; 416 417 static const char i40e_gstrings_test[][ETH_GSTRING_LEN] = { 418 "Register test (offline)", 419 "Eeprom test (offline)", 420 "Interrupt test (offline)", 421 "Link test (on/offline)" 422 }; 423 424 #define I40E_TEST_LEN (sizeof(i40e_gstrings_test) / ETH_GSTRING_LEN) 425 426 struct i40e_priv_flags { 427 char flag_string[ETH_GSTRING_LEN]; 428 u64 flag; 429 bool read_only; 430 }; 431 432 #define I40E_PRIV_FLAG(_name, _flag, _read_only) { \ 433 .flag_string = _name, \ 434 .flag = _flag, \ 435 .read_only = _read_only, \ 436 } 437 438 static const struct i40e_priv_flags i40e_gstrings_priv_flags[] = { 439 /* NOTE: MFP setting cannot be changed */ 440 I40E_PRIV_FLAG("MFP", I40E_FLAG_MFP_ENABLED, 1), 441 I40E_PRIV_FLAG("total-port-shutdown", 442 I40E_FLAG_TOTAL_PORT_SHUTDOWN_ENABLED, 1), 443 I40E_PRIV_FLAG("LinkPolling", I40E_FLAG_LINK_POLLING_ENABLED, 0), 444 I40E_PRIV_FLAG("flow-director-atr", I40E_FLAG_FD_ATR_ENABLED, 0), 445 I40E_PRIV_FLAG("veb-stats", I40E_FLAG_VEB_STATS_ENABLED, 0), 446 I40E_PRIV_FLAG("hw-atr-eviction", I40E_FLAG_HW_ATR_EVICT_ENABLED, 0), 447 I40E_PRIV_FLAG("link-down-on-close", 448 I40E_FLAG_LINK_DOWN_ON_CLOSE_ENABLED, 0), 449 I40E_PRIV_FLAG("legacy-rx", I40E_FLAG_LEGACY_RX, 0), 450 I40E_PRIV_FLAG("disable-source-pruning", 451 I40E_FLAG_SOURCE_PRUNING_DISABLED, 0), 452 I40E_PRIV_FLAG("disable-fw-lldp", I40E_FLAG_DISABLE_FW_LLDP, 0), 453 I40E_PRIV_FLAG("rs-fec", I40E_FLAG_RS_FEC, 0), 454 I40E_PRIV_FLAG("base-r-fec", I40E_FLAG_BASE_R_FEC, 0), 455 }; 456 457 #define I40E_PRIV_FLAGS_STR_LEN ARRAY_SIZE(i40e_gstrings_priv_flags) 458 459 /* Private flags with a global effect, restricted to PF 0 */ 460 static const struct i40e_priv_flags i40e_gl_gstrings_priv_flags[] = { 461 I40E_PRIV_FLAG("vf-true-promisc-support", 462 I40E_FLAG_TRUE_PROMISC_SUPPORT, 0), 463 }; 464 465 #define I40E_GL_PRIV_FLAGS_STR_LEN ARRAY_SIZE(i40e_gl_gstrings_priv_flags) 466 467 /** 468 * i40e_partition_setting_complaint - generic complaint for MFP restriction 469 * @pf: the PF struct 470 **/ 471 static void i40e_partition_setting_complaint(struct i40e_pf *pf) 472 { 473 dev_info(&pf->pdev->dev, 474 "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"); 475 } 476 477 /** 478 * i40e_phy_type_to_ethtool - convert the phy_types to ethtool link modes 479 * @pf: PF struct with phy_types 480 * @ks: ethtool link ksettings struct to fill out 481 * 482 **/ 483 static void i40e_phy_type_to_ethtool(struct i40e_pf *pf, 484 struct ethtool_link_ksettings *ks) 485 { 486 struct i40e_link_status *hw_link_info = &pf->hw.phy.link_info; 487 u64 phy_types = pf->hw.phy.phy_types; 488 489 ethtool_link_ksettings_zero_link_mode(ks, supported); 490 ethtool_link_ksettings_zero_link_mode(ks, advertising); 491 492 if (phy_types & I40E_CAP_PHY_TYPE_SGMII) { 493 ethtool_link_ksettings_add_link_mode(ks, supported, 494 1000baseT_Full); 495 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_1GB) 496 ethtool_link_ksettings_add_link_mode(ks, advertising, 497 1000baseT_Full); 498 if (pf->hw_features & I40E_HW_100M_SGMII_CAPABLE) { 499 ethtool_link_ksettings_add_link_mode(ks, supported, 500 100baseT_Full); 501 ethtool_link_ksettings_add_link_mode(ks, advertising, 502 100baseT_Full); 503 } 504 } 505 if (phy_types & I40E_CAP_PHY_TYPE_XAUI || 506 phy_types & I40E_CAP_PHY_TYPE_XFI || 507 phy_types & I40E_CAP_PHY_TYPE_SFI || 508 phy_types & I40E_CAP_PHY_TYPE_10GBASE_SFPP_CU || 509 phy_types & I40E_CAP_PHY_TYPE_10GBASE_AOC) { 510 ethtool_link_ksettings_add_link_mode(ks, supported, 511 10000baseT_Full); 512 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_10GB) 513 ethtool_link_ksettings_add_link_mode(ks, advertising, 514 10000baseT_Full); 515 } 516 if (phy_types & I40E_CAP_PHY_TYPE_10GBASE_T) { 517 ethtool_link_ksettings_add_link_mode(ks, supported, 518 10000baseT_Full); 519 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_10GB) 520 ethtool_link_ksettings_add_link_mode(ks, advertising, 521 10000baseT_Full); 522 } 523 if (phy_types & I40E_CAP_PHY_TYPE_2_5GBASE_T) { 524 ethtool_link_ksettings_add_link_mode(ks, supported, 525 2500baseT_Full); 526 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_2_5GB) 527 ethtool_link_ksettings_add_link_mode(ks, advertising, 528 2500baseT_Full); 529 } 530 if (phy_types & I40E_CAP_PHY_TYPE_5GBASE_T) { 531 ethtool_link_ksettings_add_link_mode(ks, supported, 532 5000baseT_Full); 533 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_5GB) 534 ethtool_link_ksettings_add_link_mode(ks, advertising, 535 5000baseT_Full); 536 } 537 if (phy_types & I40E_CAP_PHY_TYPE_XLAUI || 538 phy_types & I40E_CAP_PHY_TYPE_XLPPI || 539 phy_types & I40E_CAP_PHY_TYPE_40GBASE_AOC) 540 ethtool_link_ksettings_add_link_mode(ks, supported, 541 40000baseCR4_Full); 542 if (phy_types & I40E_CAP_PHY_TYPE_40GBASE_CR4_CU || 543 phy_types & I40E_CAP_PHY_TYPE_40GBASE_CR4) { 544 ethtool_link_ksettings_add_link_mode(ks, supported, 545 40000baseCR4_Full); 546 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_40GB) 547 ethtool_link_ksettings_add_link_mode(ks, advertising, 548 40000baseCR4_Full); 549 } 550 if (phy_types & I40E_CAP_PHY_TYPE_100BASE_TX) { 551 ethtool_link_ksettings_add_link_mode(ks, supported, 552 100baseT_Full); 553 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_100MB) 554 ethtool_link_ksettings_add_link_mode(ks, advertising, 555 100baseT_Full); 556 } 557 if (phy_types & I40E_CAP_PHY_TYPE_1000BASE_T) { 558 ethtool_link_ksettings_add_link_mode(ks, supported, 559 1000baseT_Full); 560 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_1GB) 561 ethtool_link_ksettings_add_link_mode(ks, advertising, 562 1000baseT_Full); 563 } 564 if (phy_types & I40E_CAP_PHY_TYPE_40GBASE_SR4) { 565 ethtool_link_ksettings_add_link_mode(ks, supported, 566 40000baseSR4_Full); 567 ethtool_link_ksettings_add_link_mode(ks, advertising, 568 40000baseSR4_Full); 569 } 570 if (phy_types & I40E_CAP_PHY_TYPE_40GBASE_LR4) { 571 ethtool_link_ksettings_add_link_mode(ks, supported, 572 40000baseLR4_Full); 573 ethtool_link_ksettings_add_link_mode(ks, advertising, 574 40000baseLR4_Full); 575 } 576 if (phy_types & I40E_CAP_PHY_TYPE_40GBASE_KR4) { 577 ethtool_link_ksettings_add_link_mode(ks, supported, 578 40000baseKR4_Full); 579 ethtool_link_ksettings_add_link_mode(ks, advertising, 580 40000baseKR4_Full); 581 } 582 if (phy_types & I40E_CAP_PHY_TYPE_20GBASE_KR2) { 583 ethtool_link_ksettings_add_link_mode(ks, supported, 584 20000baseKR2_Full); 585 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_20GB) 586 ethtool_link_ksettings_add_link_mode(ks, advertising, 587 20000baseKR2_Full); 588 } 589 if (phy_types & I40E_CAP_PHY_TYPE_10GBASE_KX4) { 590 ethtool_link_ksettings_add_link_mode(ks, supported, 591 10000baseKX4_Full); 592 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_10GB) 593 ethtool_link_ksettings_add_link_mode(ks, advertising, 594 10000baseKX4_Full); 595 } 596 if (phy_types & I40E_CAP_PHY_TYPE_10GBASE_KR && 597 !(pf->hw_features & I40E_HW_HAVE_CRT_RETIMER)) { 598 ethtool_link_ksettings_add_link_mode(ks, supported, 599 10000baseKR_Full); 600 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_10GB) 601 ethtool_link_ksettings_add_link_mode(ks, advertising, 602 10000baseKR_Full); 603 } 604 if (phy_types & I40E_CAP_PHY_TYPE_1000BASE_KX && 605 !(pf->hw_features & I40E_HW_HAVE_CRT_RETIMER)) { 606 ethtool_link_ksettings_add_link_mode(ks, supported, 607 1000baseKX_Full); 608 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_1GB) 609 ethtool_link_ksettings_add_link_mode(ks, advertising, 610 1000baseKX_Full); 611 } 612 /* need to add 25G PHY types */ 613 if (phy_types & I40E_CAP_PHY_TYPE_25GBASE_KR) { 614 ethtool_link_ksettings_add_link_mode(ks, supported, 615 25000baseKR_Full); 616 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_25GB) 617 ethtool_link_ksettings_add_link_mode(ks, advertising, 618 25000baseKR_Full); 619 } 620 if (phy_types & I40E_CAP_PHY_TYPE_25GBASE_CR) { 621 ethtool_link_ksettings_add_link_mode(ks, supported, 622 25000baseCR_Full); 623 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_25GB) 624 ethtool_link_ksettings_add_link_mode(ks, advertising, 625 25000baseCR_Full); 626 } 627 if (phy_types & I40E_CAP_PHY_TYPE_25GBASE_SR || 628 phy_types & I40E_CAP_PHY_TYPE_25GBASE_LR) { 629 ethtool_link_ksettings_add_link_mode(ks, supported, 630 25000baseSR_Full); 631 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_25GB) 632 ethtool_link_ksettings_add_link_mode(ks, advertising, 633 25000baseSR_Full); 634 } 635 if (phy_types & I40E_CAP_PHY_TYPE_25GBASE_AOC || 636 phy_types & I40E_CAP_PHY_TYPE_25GBASE_ACC) { 637 ethtool_link_ksettings_add_link_mode(ks, supported, 638 25000baseCR_Full); 639 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_25GB) 640 ethtool_link_ksettings_add_link_mode(ks, advertising, 641 25000baseCR_Full); 642 } 643 if (phy_types & I40E_CAP_PHY_TYPE_25GBASE_KR || 644 phy_types & I40E_CAP_PHY_TYPE_25GBASE_CR || 645 phy_types & I40E_CAP_PHY_TYPE_25GBASE_SR || 646 phy_types & I40E_CAP_PHY_TYPE_25GBASE_LR || 647 phy_types & I40E_CAP_PHY_TYPE_25GBASE_AOC || 648 phy_types & I40E_CAP_PHY_TYPE_25GBASE_ACC) { 649 ethtool_link_ksettings_add_link_mode(ks, supported, FEC_NONE); 650 ethtool_link_ksettings_add_link_mode(ks, supported, FEC_RS); 651 ethtool_link_ksettings_add_link_mode(ks, supported, FEC_BASER); 652 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_25GB) { 653 ethtool_link_ksettings_add_link_mode(ks, advertising, 654 FEC_NONE); 655 ethtool_link_ksettings_add_link_mode(ks, advertising, 656 FEC_RS); 657 ethtool_link_ksettings_add_link_mode(ks, advertising, 658 FEC_BASER); 659 } 660 } 661 /* need to add new 10G PHY types */ 662 if (phy_types & I40E_CAP_PHY_TYPE_10GBASE_CR1 || 663 phy_types & I40E_CAP_PHY_TYPE_10GBASE_CR1_CU) { 664 ethtool_link_ksettings_add_link_mode(ks, supported, 665 10000baseCR_Full); 666 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_10GB) 667 ethtool_link_ksettings_add_link_mode(ks, advertising, 668 10000baseCR_Full); 669 } 670 if (phy_types & I40E_CAP_PHY_TYPE_10GBASE_SR) { 671 ethtool_link_ksettings_add_link_mode(ks, supported, 672 10000baseSR_Full); 673 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_10GB) 674 ethtool_link_ksettings_add_link_mode(ks, advertising, 675 10000baseSR_Full); 676 } 677 if (phy_types & I40E_CAP_PHY_TYPE_10GBASE_LR) { 678 ethtool_link_ksettings_add_link_mode(ks, supported, 679 10000baseLR_Full); 680 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_10GB) 681 ethtool_link_ksettings_add_link_mode(ks, advertising, 682 10000baseLR_Full); 683 } 684 if (phy_types & I40E_CAP_PHY_TYPE_1000BASE_SX || 685 phy_types & I40E_CAP_PHY_TYPE_1000BASE_LX || 686 phy_types & I40E_CAP_PHY_TYPE_1000BASE_T_OPTICAL) { 687 ethtool_link_ksettings_add_link_mode(ks, supported, 688 1000baseX_Full); 689 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_1GB) 690 ethtool_link_ksettings_add_link_mode(ks, advertising, 691 1000baseX_Full); 692 } 693 /* Autoneg PHY types */ 694 if (phy_types & I40E_CAP_PHY_TYPE_SGMII || 695 phy_types & I40E_CAP_PHY_TYPE_40GBASE_KR4 || 696 phy_types & I40E_CAP_PHY_TYPE_40GBASE_CR4_CU || 697 phy_types & I40E_CAP_PHY_TYPE_40GBASE_CR4 || 698 phy_types & I40E_CAP_PHY_TYPE_25GBASE_SR || 699 phy_types & I40E_CAP_PHY_TYPE_25GBASE_LR || 700 phy_types & I40E_CAP_PHY_TYPE_25GBASE_KR || 701 phy_types & I40E_CAP_PHY_TYPE_25GBASE_CR || 702 phy_types & I40E_CAP_PHY_TYPE_20GBASE_KR2 || 703 phy_types & I40E_CAP_PHY_TYPE_10GBASE_SR || 704 phy_types & I40E_CAP_PHY_TYPE_10GBASE_LR || 705 phy_types & I40E_CAP_PHY_TYPE_10GBASE_KX4 || 706 phy_types & I40E_CAP_PHY_TYPE_10GBASE_KR || 707 phy_types & I40E_CAP_PHY_TYPE_10GBASE_CR1_CU || 708 phy_types & I40E_CAP_PHY_TYPE_10GBASE_CR1 || 709 phy_types & I40E_CAP_PHY_TYPE_10GBASE_T || 710 phy_types & I40E_CAP_PHY_TYPE_5GBASE_T || 711 phy_types & I40E_CAP_PHY_TYPE_2_5GBASE_T || 712 phy_types & I40E_CAP_PHY_TYPE_1000BASE_T_OPTICAL || 713 phy_types & I40E_CAP_PHY_TYPE_1000BASE_T || 714 phy_types & I40E_CAP_PHY_TYPE_1000BASE_SX || 715 phy_types & I40E_CAP_PHY_TYPE_1000BASE_LX || 716 phy_types & I40E_CAP_PHY_TYPE_1000BASE_KX || 717 phy_types & I40E_CAP_PHY_TYPE_100BASE_TX) { 718 ethtool_link_ksettings_add_link_mode(ks, supported, 719 Autoneg); 720 ethtool_link_ksettings_add_link_mode(ks, advertising, 721 Autoneg); 722 } 723 } 724 725 /** 726 * i40e_get_settings_link_up_fec - Get the FEC mode encoding from mask 727 * @req_fec_info: mask request FEC info 728 * @ks: ethtool ksettings to fill in 729 **/ 730 static void i40e_get_settings_link_up_fec(u8 req_fec_info, 731 struct ethtool_link_ksettings *ks) 732 { 733 ethtool_link_ksettings_add_link_mode(ks, supported, FEC_NONE); 734 ethtool_link_ksettings_add_link_mode(ks, supported, FEC_RS); 735 ethtool_link_ksettings_add_link_mode(ks, supported, FEC_BASER); 736 737 if ((I40E_AQ_SET_FEC_REQUEST_RS & req_fec_info) && 738 (I40E_AQ_SET_FEC_REQUEST_KR & req_fec_info)) { 739 ethtool_link_ksettings_add_link_mode(ks, advertising, 740 FEC_NONE); 741 ethtool_link_ksettings_add_link_mode(ks, advertising, 742 FEC_BASER); 743 ethtool_link_ksettings_add_link_mode(ks, advertising, FEC_RS); 744 } else if (I40E_AQ_SET_FEC_REQUEST_RS & req_fec_info) { 745 ethtool_link_ksettings_add_link_mode(ks, advertising, FEC_RS); 746 } else if (I40E_AQ_SET_FEC_REQUEST_KR & req_fec_info) { 747 ethtool_link_ksettings_add_link_mode(ks, advertising, 748 FEC_BASER); 749 } else { 750 ethtool_link_ksettings_add_link_mode(ks, advertising, 751 FEC_NONE); 752 } 753 } 754 755 /** 756 * i40e_get_settings_link_up - Get the Link settings for when link is up 757 * @hw: hw structure 758 * @ks: ethtool ksettings to fill in 759 * @netdev: network interface device structure 760 * @pf: pointer to physical function struct 761 **/ 762 static void i40e_get_settings_link_up(struct i40e_hw *hw, 763 struct ethtool_link_ksettings *ks, 764 struct net_device *netdev, 765 struct i40e_pf *pf) 766 { 767 struct i40e_link_status *hw_link_info = &hw->phy.link_info; 768 struct ethtool_link_ksettings cap_ksettings; 769 u32 link_speed = hw_link_info->link_speed; 770 771 /* Initialize supported and advertised settings based on phy settings */ 772 switch (hw_link_info->phy_type) { 773 case I40E_PHY_TYPE_40GBASE_CR4: 774 case I40E_PHY_TYPE_40GBASE_CR4_CU: 775 ethtool_link_ksettings_add_link_mode(ks, supported, Autoneg); 776 ethtool_link_ksettings_add_link_mode(ks, supported, 777 40000baseCR4_Full); 778 ethtool_link_ksettings_add_link_mode(ks, advertising, Autoneg); 779 ethtool_link_ksettings_add_link_mode(ks, advertising, 780 40000baseCR4_Full); 781 break; 782 case I40E_PHY_TYPE_XLAUI: 783 case I40E_PHY_TYPE_XLPPI: 784 case I40E_PHY_TYPE_40GBASE_AOC: 785 ethtool_link_ksettings_add_link_mode(ks, supported, 786 40000baseCR4_Full); 787 ethtool_link_ksettings_add_link_mode(ks, advertising, 788 40000baseCR4_Full); 789 break; 790 case I40E_PHY_TYPE_40GBASE_SR4: 791 ethtool_link_ksettings_add_link_mode(ks, supported, 792 40000baseSR4_Full); 793 ethtool_link_ksettings_add_link_mode(ks, advertising, 794 40000baseSR4_Full); 795 break; 796 case I40E_PHY_TYPE_40GBASE_LR4: 797 ethtool_link_ksettings_add_link_mode(ks, supported, 798 40000baseLR4_Full); 799 ethtool_link_ksettings_add_link_mode(ks, advertising, 800 40000baseLR4_Full); 801 break; 802 case I40E_PHY_TYPE_25GBASE_SR: 803 case I40E_PHY_TYPE_25GBASE_LR: 804 case I40E_PHY_TYPE_10GBASE_SR: 805 case I40E_PHY_TYPE_10GBASE_LR: 806 case I40E_PHY_TYPE_1000BASE_SX: 807 case I40E_PHY_TYPE_1000BASE_LX: 808 ethtool_link_ksettings_add_link_mode(ks, supported, Autoneg); 809 ethtool_link_ksettings_add_link_mode(ks, advertising, Autoneg); 810 ethtool_link_ksettings_add_link_mode(ks, supported, 811 25000baseSR_Full); 812 ethtool_link_ksettings_add_link_mode(ks, advertising, 813 25000baseSR_Full); 814 i40e_get_settings_link_up_fec(hw_link_info->req_fec_info, ks); 815 ethtool_link_ksettings_add_link_mode(ks, supported, 816 10000baseSR_Full); 817 ethtool_link_ksettings_add_link_mode(ks, advertising, 818 10000baseSR_Full); 819 ethtool_link_ksettings_add_link_mode(ks, supported, 820 10000baseLR_Full); 821 ethtool_link_ksettings_add_link_mode(ks, advertising, 822 10000baseLR_Full); 823 ethtool_link_ksettings_add_link_mode(ks, supported, 824 1000baseX_Full); 825 ethtool_link_ksettings_add_link_mode(ks, advertising, 826 1000baseX_Full); 827 ethtool_link_ksettings_add_link_mode(ks, supported, 828 10000baseT_Full); 829 if (hw_link_info->module_type[2] & 830 I40E_MODULE_TYPE_1000BASE_SX || 831 hw_link_info->module_type[2] & 832 I40E_MODULE_TYPE_1000BASE_LX) { 833 ethtool_link_ksettings_add_link_mode(ks, supported, 834 1000baseT_Full); 835 if (hw_link_info->requested_speeds & 836 I40E_LINK_SPEED_1GB) 837 ethtool_link_ksettings_add_link_mode( 838 ks, advertising, 1000baseT_Full); 839 } 840 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_10GB) 841 ethtool_link_ksettings_add_link_mode(ks, advertising, 842 10000baseT_Full); 843 break; 844 case I40E_PHY_TYPE_10GBASE_T: 845 case I40E_PHY_TYPE_5GBASE_T_LINK_STATUS: 846 case I40E_PHY_TYPE_2_5GBASE_T_LINK_STATUS: 847 case I40E_PHY_TYPE_1000BASE_T: 848 case I40E_PHY_TYPE_100BASE_TX: 849 ethtool_link_ksettings_add_link_mode(ks, supported, Autoneg); 850 ethtool_link_ksettings_add_link_mode(ks, supported, 851 10000baseT_Full); 852 ethtool_link_ksettings_add_link_mode(ks, supported, 853 5000baseT_Full); 854 ethtool_link_ksettings_add_link_mode(ks, supported, 855 2500baseT_Full); 856 ethtool_link_ksettings_add_link_mode(ks, supported, 857 1000baseT_Full); 858 ethtool_link_ksettings_add_link_mode(ks, supported, 859 100baseT_Full); 860 ethtool_link_ksettings_add_link_mode(ks, advertising, Autoneg); 861 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_10GB) 862 ethtool_link_ksettings_add_link_mode(ks, advertising, 863 10000baseT_Full); 864 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_5GB) 865 ethtool_link_ksettings_add_link_mode(ks, advertising, 866 5000baseT_Full); 867 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_2_5GB) 868 ethtool_link_ksettings_add_link_mode(ks, advertising, 869 2500baseT_Full); 870 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_1GB) 871 ethtool_link_ksettings_add_link_mode(ks, advertising, 872 1000baseT_Full); 873 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_100MB) 874 ethtool_link_ksettings_add_link_mode(ks, advertising, 875 100baseT_Full); 876 break; 877 case I40E_PHY_TYPE_1000BASE_T_OPTICAL: 878 ethtool_link_ksettings_add_link_mode(ks, supported, Autoneg); 879 ethtool_link_ksettings_add_link_mode(ks, supported, 880 1000baseT_Full); 881 ethtool_link_ksettings_add_link_mode(ks, advertising, Autoneg); 882 ethtool_link_ksettings_add_link_mode(ks, advertising, 883 1000baseT_Full); 884 break; 885 case I40E_PHY_TYPE_10GBASE_CR1_CU: 886 case I40E_PHY_TYPE_10GBASE_CR1: 887 ethtool_link_ksettings_add_link_mode(ks, supported, Autoneg); 888 ethtool_link_ksettings_add_link_mode(ks, supported, 889 10000baseT_Full); 890 ethtool_link_ksettings_add_link_mode(ks, advertising, Autoneg); 891 ethtool_link_ksettings_add_link_mode(ks, advertising, 892 10000baseT_Full); 893 break; 894 case I40E_PHY_TYPE_XAUI: 895 case I40E_PHY_TYPE_XFI: 896 case I40E_PHY_TYPE_SFI: 897 case I40E_PHY_TYPE_10GBASE_SFPP_CU: 898 case I40E_PHY_TYPE_10GBASE_AOC: 899 ethtool_link_ksettings_add_link_mode(ks, supported, 900 10000baseT_Full); 901 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_10GB) 902 ethtool_link_ksettings_add_link_mode(ks, advertising, 903 10000baseT_Full); 904 i40e_get_settings_link_up_fec(hw_link_info->req_fec_info, ks); 905 break; 906 case I40E_PHY_TYPE_SGMII: 907 ethtool_link_ksettings_add_link_mode(ks, supported, Autoneg); 908 ethtool_link_ksettings_add_link_mode(ks, supported, 909 1000baseT_Full); 910 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_1GB) 911 ethtool_link_ksettings_add_link_mode(ks, advertising, 912 1000baseT_Full); 913 if (pf->hw_features & I40E_HW_100M_SGMII_CAPABLE) { 914 ethtool_link_ksettings_add_link_mode(ks, supported, 915 100baseT_Full); 916 if (hw_link_info->requested_speeds & 917 I40E_LINK_SPEED_100MB) 918 ethtool_link_ksettings_add_link_mode( 919 ks, advertising, 100baseT_Full); 920 } 921 break; 922 case I40E_PHY_TYPE_40GBASE_KR4: 923 case I40E_PHY_TYPE_25GBASE_KR: 924 case I40E_PHY_TYPE_20GBASE_KR2: 925 case I40E_PHY_TYPE_10GBASE_KR: 926 case I40E_PHY_TYPE_10GBASE_KX4: 927 case I40E_PHY_TYPE_1000BASE_KX: 928 ethtool_link_ksettings_add_link_mode(ks, supported, 929 40000baseKR4_Full); 930 ethtool_link_ksettings_add_link_mode(ks, supported, 931 25000baseKR_Full); 932 ethtool_link_ksettings_add_link_mode(ks, supported, 933 20000baseKR2_Full); 934 ethtool_link_ksettings_add_link_mode(ks, supported, 935 10000baseKR_Full); 936 ethtool_link_ksettings_add_link_mode(ks, supported, 937 10000baseKX4_Full); 938 ethtool_link_ksettings_add_link_mode(ks, supported, 939 1000baseKX_Full); 940 ethtool_link_ksettings_add_link_mode(ks, supported, Autoneg); 941 ethtool_link_ksettings_add_link_mode(ks, advertising, 942 40000baseKR4_Full); 943 ethtool_link_ksettings_add_link_mode(ks, advertising, 944 25000baseKR_Full); 945 i40e_get_settings_link_up_fec(hw_link_info->req_fec_info, ks); 946 ethtool_link_ksettings_add_link_mode(ks, advertising, 947 20000baseKR2_Full); 948 ethtool_link_ksettings_add_link_mode(ks, advertising, 949 10000baseKR_Full); 950 ethtool_link_ksettings_add_link_mode(ks, advertising, 951 10000baseKX4_Full); 952 ethtool_link_ksettings_add_link_mode(ks, advertising, 953 1000baseKX_Full); 954 ethtool_link_ksettings_add_link_mode(ks, advertising, Autoneg); 955 break; 956 case I40E_PHY_TYPE_25GBASE_CR: 957 ethtool_link_ksettings_add_link_mode(ks, supported, Autoneg); 958 ethtool_link_ksettings_add_link_mode(ks, advertising, Autoneg); 959 ethtool_link_ksettings_add_link_mode(ks, supported, 960 25000baseCR_Full); 961 ethtool_link_ksettings_add_link_mode(ks, advertising, 962 25000baseCR_Full); 963 i40e_get_settings_link_up_fec(hw_link_info->req_fec_info, ks); 964 965 break; 966 case I40E_PHY_TYPE_25GBASE_AOC: 967 case I40E_PHY_TYPE_25GBASE_ACC: 968 ethtool_link_ksettings_add_link_mode(ks, supported, Autoneg); 969 ethtool_link_ksettings_add_link_mode(ks, advertising, Autoneg); 970 ethtool_link_ksettings_add_link_mode(ks, supported, 971 25000baseCR_Full); 972 ethtool_link_ksettings_add_link_mode(ks, advertising, 973 25000baseCR_Full); 974 i40e_get_settings_link_up_fec(hw_link_info->req_fec_info, ks); 975 976 ethtool_link_ksettings_add_link_mode(ks, supported, 977 10000baseCR_Full); 978 ethtool_link_ksettings_add_link_mode(ks, advertising, 979 10000baseCR_Full); 980 break; 981 default: 982 /* if we got here and link is up something bad is afoot */ 983 netdev_info(netdev, 984 "WARNING: Link is up but PHY type 0x%x is not recognized, or incorrect cable is in use\n", 985 hw_link_info->phy_type); 986 } 987 988 /* Now that we've worked out everything that could be supported by the 989 * current PHY type, get what is supported by the NVM and intersect 990 * them to get what is truly supported 991 */ 992 memset(&cap_ksettings, 0, sizeof(struct ethtool_link_ksettings)); 993 i40e_phy_type_to_ethtool(pf, &cap_ksettings); 994 ethtool_intersect_link_masks(ks, &cap_ksettings); 995 996 /* Set speed and duplex */ 997 switch (link_speed) { 998 case I40E_LINK_SPEED_40GB: 999 ks->base.speed = SPEED_40000; 1000 break; 1001 case I40E_LINK_SPEED_25GB: 1002 ks->base.speed = SPEED_25000; 1003 break; 1004 case I40E_LINK_SPEED_20GB: 1005 ks->base.speed = SPEED_20000; 1006 break; 1007 case I40E_LINK_SPEED_10GB: 1008 ks->base.speed = SPEED_10000; 1009 break; 1010 case I40E_LINK_SPEED_5GB: 1011 ks->base.speed = SPEED_5000; 1012 break; 1013 case I40E_LINK_SPEED_2_5GB: 1014 ks->base.speed = SPEED_2500; 1015 break; 1016 case I40E_LINK_SPEED_1GB: 1017 ks->base.speed = SPEED_1000; 1018 break; 1019 case I40E_LINK_SPEED_100MB: 1020 ks->base.speed = SPEED_100; 1021 break; 1022 default: 1023 ks->base.speed = SPEED_UNKNOWN; 1024 break; 1025 } 1026 ks->base.duplex = DUPLEX_FULL; 1027 } 1028 1029 /** 1030 * i40e_get_settings_link_down - Get the Link settings for when link is down 1031 * @hw: hw structure 1032 * @ks: ethtool ksettings to fill in 1033 * @pf: pointer to physical function struct 1034 * 1035 * Reports link settings that can be determined when link is down 1036 **/ 1037 static void i40e_get_settings_link_down(struct i40e_hw *hw, 1038 struct ethtool_link_ksettings *ks, 1039 struct i40e_pf *pf) 1040 { 1041 /* link is down and the driver needs to fall back on 1042 * supported phy types to figure out what info to display 1043 */ 1044 i40e_phy_type_to_ethtool(pf, ks); 1045 1046 /* With no link speed and duplex are unknown */ 1047 ks->base.speed = SPEED_UNKNOWN; 1048 ks->base.duplex = DUPLEX_UNKNOWN; 1049 } 1050 1051 /** 1052 * i40e_get_link_ksettings - Get Link Speed and Duplex settings 1053 * @netdev: network interface device structure 1054 * @ks: ethtool ksettings 1055 * 1056 * Reports speed/duplex settings based on media_type 1057 **/ 1058 static int i40e_get_link_ksettings(struct net_device *netdev, 1059 struct ethtool_link_ksettings *ks) 1060 { 1061 struct i40e_netdev_priv *np = netdev_priv(netdev); 1062 struct i40e_pf *pf = np->vsi->back; 1063 struct i40e_hw *hw = &pf->hw; 1064 struct i40e_link_status *hw_link_info = &hw->phy.link_info; 1065 bool link_up = hw_link_info->link_info & I40E_AQ_LINK_UP; 1066 1067 ethtool_link_ksettings_zero_link_mode(ks, supported); 1068 ethtool_link_ksettings_zero_link_mode(ks, advertising); 1069 1070 if (link_up) 1071 i40e_get_settings_link_up(hw, ks, netdev, pf); 1072 else 1073 i40e_get_settings_link_down(hw, ks, pf); 1074 1075 /* Now set the settings that don't rely on link being up/down */ 1076 /* Set autoneg settings */ 1077 ks->base.autoneg = ((hw_link_info->an_info & I40E_AQ_AN_COMPLETED) ? 1078 AUTONEG_ENABLE : AUTONEG_DISABLE); 1079 1080 /* Set media type settings */ 1081 switch (hw->phy.media_type) { 1082 case I40E_MEDIA_TYPE_BACKPLANE: 1083 ethtool_link_ksettings_add_link_mode(ks, supported, Autoneg); 1084 ethtool_link_ksettings_add_link_mode(ks, supported, Backplane); 1085 ethtool_link_ksettings_add_link_mode(ks, advertising, Autoneg); 1086 ethtool_link_ksettings_add_link_mode(ks, advertising, 1087 Backplane); 1088 ks->base.port = PORT_NONE; 1089 break; 1090 case I40E_MEDIA_TYPE_BASET: 1091 ethtool_link_ksettings_add_link_mode(ks, supported, TP); 1092 ethtool_link_ksettings_add_link_mode(ks, advertising, TP); 1093 ks->base.port = PORT_TP; 1094 break; 1095 case I40E_MEDIA_TYPE_DA: 1096 case I40E_MEDIA_TYPE_CX4: 1097 ethtool_link_ksettings_add_link_mode(ks, supported, FIBRE); 1098 ethtool_link_ksettings_add_link_mode(ks, advertising, FIBRE); 1099 ks->base.port = PORT_DA; 1100 break; 1101 case I40E_MEDIA_TYPE_FIBER: 1102 ethtool_link_ksettings_add_link_mode(ks, supported, FIBRE); 1103 ethtool_link_ksettings_add_link_mode(ks, advertising, FIBRE); 1104 ks->base.port = PORT_FIBRE; 1105 break; 1106 case I40E_MEDIA_TYPE_UNKNOWN: 1107 default: 1108 ks->base.port = PORT_OTHER; 1109 break; 1110 } 1111 1112 /* Set flow control settings */ 1113 ethtool_link_ksettings_add_link_mode(ks, supported, Pause); 1114 ethtool_link_ksettings_add_link_mode(ks, supported, Asym_Pause); 1115 1116 switch (hw->fc.requested_mode) { 1117 case I40E_FC_FULL: 1118 ethtool_link_ksettings_add_link_mode(ks, advertising, Pause); 1119 break; 1120 case I40E_FC_TX_PAUSE: 1121 ethtool_link_ksettings_add_link_mode(ks, advertising, 1122 Asym_Pause); 1123 break; 1124 case I40E_FC_RX_PAUSE: 1125 ethtool_link_ksettings_add_link_mode(ks, advertising, Pause); 1126 ethtool_link_ksettings_add_link_mode(ks, advertising, 1127 Asym_Pause); 1128 break; 1129 default: 1130 ethtool_link_ksettings_del_link_mode(ks, advertising, Pause); 1131 ethtool_link_ksettings_del_link_mode(ks, advertising, 1132 Asym_Pause); 1133 break; 1134 } 1135 1136 return 0; 1137 } 1138 1139 /** 1140 * i40e_set_link_ksettings - Set Speed and Duplex 1141 * @netdev: network interface device structure 1142 * @ks: ethtool ksettings 1143 * 1144 * Set speed/duplex per media_types advertised/forced 1145 **/ 1146 static int i40e_set_link_ksettings(struct net_device *netdev, 1147 const struct ethtool_link_ksettings *ks) 1148 { 1149 struct i40e_netdev_priv *np = netdev_priv(netdev); 1150 struct i40e_aq_get_phy_abilities_resp abilities; 1151 struct ethtool_link_ksettings safe_ks; 1152 struct ethtool_link_ksettings copy_ks; 1153 struct i40e_aq_set_phy_config config; 1154 struct i40e_pf *pf = np->vsi->back; 1155 struct i40e_vsi *vsi = np->vsi; 1156 struct i40e_hw *hw = &pf->hw; 1157 bool autoneg_changed = false; 1158 i40e_status status = 0; 1159 int timeout = 50; 1160 int err = 0; 1161 u8 autoneg; 1162 1163 /* Changing port settings is not supported if this isn't the 1164 * port's controlling PF 1165 */ 1166 if (hw->partition_id != 1) { 1167 i40e_partition_setting_complaint(pf); 1168 return -EOPNOTSUPP; 1169 } 1170 if (vsi != pf->vsi[pf->lan_vsi]) 1171 return -EOPNOTSUPP; 1172 if (hw->phy.media_type != I40E_MEDIA_TYPE_BASET && 1173 hw->phy.media_type != I40E_MEDIA_TYPE_FIBER && 1174 hw->phy.media_type != I40E_MEDIA_TYPE_BACKPLANE && 1175 hw->phy.media_type != I40E_MEDIA_TYPE_DA && 1176 hw->phy.link_info.link_info & I40E_AQ_LINK_UP) 1177 return -EOPNOTSUPP; 1178 if (hw->device_id == I40E_DEV_ID_KX_B || 1179 hw->device_id == I40E_DEV_ID_KX_C || 1180 hw->device_id == I40E_DEV_ID_20G_KR2 || 1181 hw->device_id == I40E_DEV_ID_20G_KR2_A || 1182 hw->device_id == I40E_DEV_ID_25G_B || 1183 hw->device_id == I40E_DEV_ID_KX_X722) { 1184 netdev_info(netdev, "Changing settings is not supported on backplane.\n"); 1185 return -EOPNOTSUPP; 1186 } 1187 1188 /* copy the ksettings to copy_ks to avoid modifying the origin */ 1189 memcpy(©_ks, ks, sizeof(struct ethtool_link_ksettings)); 1190 1191 /* save autoneg out of ksettings */ 1192 autoneg = copy_ks.base.autoneg; 1193 1194 /* get our own copy of the bits to check against */ 1195 memset(&safe_ks, 0, sizeof(struct ethtool_link_ksettings)); 1196 safe_ks.base.cmd = copy_ks.base.cmd; 1197 safe_ks.base.link_mode_masks_nwords = 1198 copy_ks.base.link_mode_masks_nwords; 1199 i40e_get_link_ksettings(netdev, &safe_ks); 1200 1201 /* Get link modes supported by hardware and check against modes 1202 * requested by the user. Return an error if unsupported mode was set. 1203 */ 1204 if (!bitmap_subset(copy_ks.link_modes.advertising, 1205 safe_ks.link_modes.supported, 1206 __ETHTOOL_LINK_MODE_MASK_NBITS)) 1207 return -EINVAL; 1208 1209 /* set autoneg back to what it currently is */ 1210 copy_ks.base.autoneg = safe_ks.base.autoneg; 1211 1212 /* If copy_ks.base and safe_ks.base are not the same now, then they are 1213 * trying to set something that we do not support. 1214 */ 1215 if (memcmp(©_ks.base, &safe_ks.base, 1216 sizeof(struct ethtool_link_settings))) 1217 return -EOPNOTSUPP; 1218 1219 while (test_and_set_bit(__I40E_CONFIG_BUSY, pf->state)) { 1220 timeout--; 1221 if (!timeout) 1222 return -EBUSY; 1223 usleep_range(1000, 2000); 1224 } 1225 1226 /* Get the current phy config */ 1227 status = i40e_aq_get_phy_capabilities(hw, false, false, &abilities, 1228 NULL); 1229 if (status) { 1230 err = -EAGAIN; 1231 goto done; 1232 } 1233 1234 /* Copy abilities to config in case autoneg is not 1235 * set below 1236 */ 1237 memset(&config, 0, sizeof(struct i40e_aq_set_phy_config)); 1238 config.abilities = abilities.abilities; 1239 1240 /* Check autoneg */ 1241 if (autoneg == AUTONEG_ENABLE) { 1242 /* If autoneg was not already enabled */ 1243 if (!(hw->phy.link_info.an_info & I40E_AQ_AN_COMPLETED)) { 1244 /* If autoneg is not supported, return error */ 1245 if (!ethtool_link_ksettings_test_link_mode(&safe_ks, 1246 supported, 1247 Autoneg)) { 1248 netdev_info(netdev, "Autoneg not supported on this phy\n"); 1249 err = -EINVAL; 1250 goto done; 1251 } 1252 /* Autoneg is allowed to change */ 1253 config.abilities = abilities.abilities | 1254 I40E_AQ_PHY_ENABLE_AN; 1255 autoneg_changed = true; 1256 } 1257 } else { 1258 /* If autoneg is currently enabled */ 1259 if (hw->phy.link_info.an_info & I40E_AQ_AN_COMPLETED) { 1260 /* If autoneg is supported 10GBASE_T is the only PHY 1261 * that can disable it, so otherwise return error 1262 */ 1263 if (ethtool_link_ksettings_test_link_mode(&safe_ks, 1264 supported, 1265 Autoneg) && 1266 hw->phy.media_type != I40E_MEDIA_TYPE_BASET) { 1267 netdev_info(netdev, "Autoneg cannot be disabled on this phy\n"); 1268 err = -EINVAL; 1269 goto done; 1270 } 1271 /* Autoneg is allowed to change */ 1272 config.abilities = abilities.abilities & 1273 ~I40E_AQ_PHY_ENABLE_AN; 1274 autoneg_changed = true; 1275 } 1276 } 1277 1278 if (ethtool_link_ksettings_test_link_mode(ks, advertising, 1279 100baseT_Full)) 1280 config.link_speed |= I40E_LINK_SPEED_100MB; 1281 if (ethtool_link_ksettings_test_link_mode(ks, advertising, 1282 1000baseT_Full) || 1283 ethtool_link_ksettings_test_link_mode(ks, advertising, 1284 1000baseX_Full) || 1285 ethtool_link_ksettings_test_link_mode(ks, advertising, 1286 1000baseKX_Full)) 1287 config.link_speed |= I40E_LINK_SPEED_1GB; 1288 if (ethtool_link_ksettings_test_link_mode(ks, advertising, 1289 10000baseT_Full) || 1290 ethtool_link_ksettings_test_link_mode(ks, advertising, 1291 10000baseKX4_Full) || 1292 ethtool_link_ksettings_test_link_mode(ks, advertising, 1293 10000baseKR_Full) || 1294 ethtool_link_ksettings_test_link_mode(ks, advertising, 1295 10000baseCR_Full) || 1296 ethtool_link_ksettings_test_link_mode(ks, advertising, 1297 10000baseSR_Full) || 1298 ethtool_link_ksettings_test_link_mode(ks, advertising, 1299 10000baseLR_Full)) 1300 config.link_speed |= I40E_LINK_SPEED_10GB; 1301 if (ethtool_link_ksettings_test_link_mode(ks, advertising, 1302 2500baseT_Full)) 1303 config.link_speed |= I40E_LINK_SPEED_2_5GB; 1304 if (ethtool_link_ksettings_test_link_mode(ks, advertising, 1305 5000baseT_Full)) 1306 config.link_speed |= I40E_LINK_SPEED_5GB; 1307 if (ethtool_link_ksettings_test_link_mode(ks, advertising, 1308 20000baseKR2_Full)) 1309 config.link_speed |= I40E_LINK_SPEED_20GB; 1310 if (ethtool_link_ksettings_test_link_mode(ks, advertising, 1311 25000baseCR_Full) || 1312 ethtool_link_ksettings_test_link_mode(ks, advertising, 1313 25000baseKR_Full) || 1314 ethtool_link_ksettings_test_link_mode(ks, advertising, 1315 25000baseSR_Full)) 1316 config.link_speed |= I40E_LINK_SPEED_25GB; 1317 if (ethtool_link_ksettings_test_link_mode(ks, advertising, 1318 40000baseKR4_Full) || 1319 ethtool_link_ksettings_test_link_mode(ks, advertising, 1320 40000baseCR4_Full) || 1321 ethtool_link_ksettings_test_link_mode(ks, advertising, 1322 40000baseSR4_Full) || 1323 ethtool_link_ksettings_test_link_mode(ks, advertising, 1324 40000baseLR4_Full)) 1325 config.link_speed |= I40E_LINK_SPEED_40GB; 1326 1327 /* If speed didn't get set, set it to what it currently is. 1328 * This is needed because if advertise is 0 (as it is when autoneg 1329 * is disabled) then speed won't get set. 1330 */ 1331 if (!config.link_speed) 1332 config.link_speed = abilities.link_speed; 1333 if (autoneg_changed || abilities.link_speed != config.link_speed) { 1334 /* copy over the rest of the abilities */ 1335 config.phy_type = abilities.phy_type; 1336 config.phy_type_ext = abilities.phy_type_ext; 1337 config.eee_capability = abilities.eee_capability; 1338 config.eeer = abilities.eeer_val; 1339 config.low_power_ctrl = abilities.d3_lpan; 1340 config.fec_config = abilities.fec_cfg_curr_mod_ext_info & 1341 I40E_AQ_PHY_FEC_CONFIG_MASK; 1342 1343 /* save the requested speeds */ 1344 hw->phy.link_info.requested_speeds = config.link_speed; 1345 /* set link and auto negotiation so changes take effect */ 1346 config.abilities |= I40E_AQ_PHY_ENABLE_ATOMIC_LINK; 1347 /* If link is up put link down */ 1348 if (hw->phy.link_info.link_info & I40E_AQ_LINK_UP) { 1349 /* Tell the OS link is going down, the link will go 1350 * back up when fw says it is ready asynchronously 1351 */ 1352 i40e_print_link_message(vsi, false); 1353 netif_carrier_off(netdev); 1354 netif_tx_stop_all_queues(netdev); 1355 } 1356 1357 /* make the aq call */ 1358 status = i40e_aq_set_phy_config(hw, &config, NULL); 1359 if (status) { 1360 netdev_info(netdev, 1361 "Set phy config failed, err %s aq_err %s\n", 1362 i40e_stat_str(hw, status), 1363 i40e_aq_str(hw, hw->aq.asq_last_status)); 1364 err = -EAGAIN; 1365 goto done; 1366 } 1367 1368 status = i40e_update_link_info(hw); 1369 if (status) 1370 netdev_dbg(netdev, 1371 "Updating link info failed with err %s aq_err %s\n", 1372 i40e_stat_str(hw, status), 1373 i40e_aq_str(hw, hw->aq.asq_last_status)); 1374 1375 } else { 1376 netdev_info(netdev, "Nothing changed, exiting without setting anything.\n"); 1377 } 1378 1379 done: 1380 clear_bit(__I40E_CONFIG_BUSY, pf->state); 1381 1382 return err; 1383 } 1384 1385 static int i40e_set_fec_cfg(struct net_device *netdev, u8 fec_cfg) 1386 { 1387 struct i40e_netdev_priv *np = netdev_priv(netdev); 1388 struct i40e_aq_get_phy_abilities_resp abilities; 1389 struct i40e_pf *pf = np->vsi->back; 1390 struct i40e_hw *hw = &pf->hw; 1391 i40e_status status = 0; 1392 u32 flags = 0; 1393 int err = 0; 1394 1395 flags = READ_ONCE(pf->flags); 1396 i40e_set_fec_in_flags(fec_cfg, &flags); 1397 1398 /* Get the current phy config */ 1399 memset(&abilities, 0, sizeof(abilities)); 1400 status = i40e_aq_get_phy_capabilities(hw, false, false, &abilities, 1401 NULL); 1402 if (status) { 1403 err = -EAGAIN; 1404 goto done; 1405 } 1406 1407 if (abilities.fec_cfg_curr_mod_ext_info != fec_cfg) { 1408 struct i40e_aq_set_phy_config config; 1409 1410 memset(&config, 0, sizeof(config)); 1411 config.phy_type = abilities.phy_type; 1412 config.abilities = abilities.abilities | 1413 I40E_AQ_PHY_ENABLE_ATOMIC_LINK; 1414 config.phy_type_ext = abilities.phy_type_ext; 1415 config.link_speed = abilities.link_speed; 1416 config.eee_capability = abilities.eee_capability; 1417 config.eeer = abilities.eeer_val; 1418 config.low_power_ctrl = abilities.d3_lpan; 1419 config.fec_config = fec_cfg & I40E_AQ_PHY_FEC_CONFIG_MASK; 1420 status = i40e_aq_set_phy_config(hw, &config, NULL); 1421 if (status) { 1422 netdev_info(netdev, 1423 "Set phy config failed, err %s aq_err %s\n", 1424 i40e_stat_str(hw, status), 1425 i40e_aq_str(hw, hw->aq.asq_last_status)); 1426 err = -EAGAIN; 1427 goto done; 1428 } 1429 pf->flags = flags; 1430 status = i40e_update_link_info(hw); 1431 if (status) 1432 /* debug level message only due to relation to the link 1433 * itself rather than to the FEC settings 1434 * (e.g. no physical connection etc.) 1435 */ 1436 netdev_dbg(netdev, 1437 "Updating link info failed with err %s aq_err %s\n", 1438 i40e_stat_str(hw, status), 1439 i40e_aq_str(hw, hw->aq.asq_last_status)); 1440 } 1441 1442 done: 1443 return err; 1444 } 1445 1446 static int i40e_get_fec_param(struct net_device *netdev, 1447 struct ethtool_fecparam *fecparam) 1448 { 1449 struct i40e_netdev_priv *np = netdev_priv(netdev); 1450 struct i40e_aq_get_phy_abilities_resp abilities; 1451 struct i40e_pf *pf = np->vsi->back; 1452 struct i40e_hw *hw = &pf->hw; 1453 i40e_status status = 0; 1454 int err = 0; 1455 u8 fec_cfg; 1456 1457 /* Get the current phy config */ 1458 memset(&abilities, 0, sizeof(abilities)); 1459 status = i40e_aq_get_phy_capabilities(hw, false, false, &abilities, 1460 NULL); 1461 if (status) { 1462 err = -EAGAIN; 1463 goto done; 1464 } 1465 1466 fecparam->fec = 0; 1467 fec_cfg = abilities.fec_cfg_curr_mod_ext_info; 1468 if (fec_cfg & I40E_AQ_SET_FEC_AUTO) 1469 fecparam->fec |= ETHTOOL_FEC_AUTO; 1470 else if (fec_cfg & (I40E_AQ_SET_FEC_REQUEST_RS | 1471 I40E_AQ_SET_FEC_ABILITY_RS)) 1472 fecparam->fec |= ETHTOOL_FEC_RS; 1473 else if (fec_cfg & (I40E_AQ_SET_FEC_REQUEST_KR | 1474 I40E_AQ_SET_FEC_ABILITY_KR)) 1475 fecparam->fec |= ETHTOOL_FEC_BASER; 1476 if (fec_cfg == 0) 1477 fecparam->fec |= ETHTOOL_FEC_OFF; 1478 1479 if (hw->phy.link_info.fec_info & I40E_AQ_CONFIG_FEC_KR_ENA) 1480 fecparam->active_fec = ETHTOOL_FEC_BASER; 1481 else if (hw->phy.link_info.fec_info & I40E_AQ_CONFIG_FEC_RS_ENA) 1482 fecparam->active_fec = ETHTOOL_FEC_RS; 1483 else 1484 fecparam->active_fec = ETHTOOL_FEC_OFF; 1485 done: 1486 return err; 1487 } 1488 1489 static int i40e_set_fec_param(struct net_device *netdev, 1490 struct ethtool_fecparam *fecparam) 1491 { 1492 struct i40e_netdev_priv *np = netdev_priv(netdev); 1493 struct i40e_pf *pf = np->vsi->back; 1494 struct i40e_hw *hw = &pf->hw; 1495 u8 fec_cfg = 0; 1496 1497 if (hw->device_id != I40E_DEV_ID_25G_SFP28 && 1498 hw->device_id != I40E_DEV_ID_25G_B && 1499 hw->device_id != I40E_DEV_ID_KX_X722) 1500 return -EPERM; 1501 1502 if (hw->mac.type == I40E_MAC_X722 && 1503 !(hw->flags & I40E_HW_FLAG_X722_FEC_REQUEST_CAPABLE)) { 1504 netdev_err(netdev, "Setting FEC encoding not supported by firmware. Please update the NVM image.\n"); 1505 return -EOPNOTSUPP; 1506 } 1507 1508 switch (fecparam->fec) { 1509 case ETHTOOL_FEC_AUTO: 1510 fec_cfg = I40E_AQ_SET_FEC_AUTO; 1511 break; 1512 case ETHTOOL_FEC_RS: 1513 fec_cfg = (I40E_AQ_SET_FEC_REQUEST_RS | 1514 I40E_AQ_SET_FEC_ABILITY_RS); 1515 break; 1516 case ETHTOOL_FEC_BASER: 1517 fec_cfg = (I40E_AQ_SET_FEC_REQUEST_KR | 1518 I40E_AQ_SET_FEC_ABILITY_KR); 1519 break; 1520 case ETHTOOL_FEC_OFF: 1521 case ETHTOOL_FEC_NONE: 1522 fec_cfg = 0; 1523 break; 1524 default: 1525 dev_warn(&pf->pdev->dev, "Unsupported FEC mode: %d", 1526 fecparam->fec); 1527 return -EINVAL; 1528 } 1529 1530 return i40e_set_fec_cfg(netdev, fec_cfg); 1531 } 1532 1533 static int i40e_nway_reset(struct net_device *netdev) 1534 { 1535 /* restart autonegotiation */ 1536 struct i40e_netdev_priv *np = netdev_priv(netdev); 1537 struct i40e_pf *pf = np->vsi->back; 1538 struct i40e_hw *hw = &pf->hw; 1539 bool link_up = hw->phy.link_info.link_info & I40E_AQ_LINK_UP; 1540 i40e_status ret = 0; 1541 1542 ret = i40e_aq_set_link_restart_an(hw, link_up, NULL); 1543 if (ret) { 1544 netdev_info(netdev, "link restart failed, err %s aq_err %s\n", 1545 i40e_stat_str(hw, ret), 1546 i40e_aq_str(hw, hw->aq.asq_last_status)); 1547 return -EIO; 1548 } 1549 1550 return 0; 1551 } 1552 1553 /** 1554 * i40e_get_pauseparam - Get Flow Control status 1555 * @netdev: netdevice structure 1556 * @pause: buffer to return pause parameters 1557 * 1558 * Return tx/rx-pause status 1559 **/ 1560 static void i40e_get_pauseparam(struct net_device *netdev, 1561 struct ethtool_pauseparam *pause) 1562 { 1563 struct i40e_netdev_priv *np = netdev_priv(netdev); 1564 struct i40e_pf *pf = np->vsi->back; 1565 struct i40e_hw *hw = &pf->hw; 1566 struct i40e_link_status *hw_link_info = &hw->phy.link_info; 1567 struct i40e_dcbx_config *dcbx_cfg = &hw->local_dcbx_config; 1568 1569 pause->autoneg = 1570 ((hw_link_info->an_info & I40E_AQ_AN_COMPLETED) ? 1571 AUTONEG_ENABLE : AUTONEG_DISABLE); 1572 1573 /* PFC enabled so report LFC as off */ 1574 if (dcbx_cfg->pfc.pfcenable) { 1575 pause->rx_pause = 0; 1576 pause->tx_pause = 0; 1577 return; 1578 } 1579 1580 if (hw->fc.current_mode == I40E_FC_RX_PAUSE) { 1581 pause->rx_pause = 1; 1582 } else if (hw->fc.current_mode == I40E_FC_TX_PAUSE) { 1583 pause->tx_pause = 1; 1584 } else if (hw->fc.current_mode == I40E_FC_FULL) { 1585 pause->rx_pause = 1; 1586 pause->tx_pause = 1; 1587 } 1588 } 1589 1590 /** 1591 * i40e_set_pauseparam - Set Flow Control parameter 1592 * @netdev: network interface device structure 1593 * @pause: return tx/rx flow control status 1594 **/ 1595 static int i40e_set_pauseparam(struct net_device *netdev, 1596 struct ethtool_pauseparam *pause) 1597 { 1598 struct i40e_netdev_priv *np = netdev_priv(netdev); 1599 struct i40e_pf *pf = np->vsi->back; 1600 struct i40e_vsi *vsi = np->vsi; 1601 struct i40e_hw *hw = &pf->hw; 1602 struct i40e_link_status *hw_link_info = &hw->phy.link_info; 1603 struct i40e_dcbx_config *dcbx_cfg = &hw->local_dcbx_config; 1604 bool link_up = hw_link_info->link_info & I40E_AQ_LINK_UP; 1605 i40e_status status; 1606 u8 aq_failures; 1607 int err = 0; 1608 u32 is_an; 1609 1610 /* Changing the port's flow control is not supported if this isn't the 1611 * port's controlling PF 1612 */ 1613 if (hw->partition_id != 1) { 1614 i40e_partition_setting_complaint(pf); 1615 return -EOPNOTSUPP; 1616 } 1617 1618 if (vsi != pf->vsi[pf->lan_vsi]) 1619 return -EOPNOTSUPP; 1620 1621 is_an = hw_link_info->an_info & I40E_AQ_AN_COMPLETED; 1622 if (pause->autoneg != is_an) { 1623 netdev_info(netdev, "To change autoneg please use: ethtool -s <dev> autoneg <on|off>\n"); 1624 return -EOPNOTSUPP; 1625 } 1626 1627 /* If we have link and don't have autoneg */ 1628 if (!test_bit(__I40E_DOWN, pf->state) && !is_an) { 1629 /* Send message that it might not necessarily work*/ 1630 netdev_info(netdev, "Autoneg did not complete so changing settings may not result in an actual change.\n"); 1631 } 1632 1633 if (dcbx_cfg->pfc.pfcenable) { 1634 netdev_info(netdev, 1635 "Priority flow control enabled. Cannot set link flow control.\n"); 1636 return -EOPNOTSUPP; 1637 } 1638 1639 if (pause->rx_pause && pause->tx_pause) 1640 hw->fc.requested_mode = I40E_FC_FULL; 1641 else if (pause->rx_pause && !pause->tx_pause) 1642 hw->fc.requested_mode = I40E_FC_RX_PAUSE; 1643 else if (!pause->rx_pause && pause->tx_pause) 1644 hw->fc.requested_mode = I40E_FC_TX_PAUSE; 1645 else if (!pause->rx_pause && !pause->tx_pause) 1646 hw->fc.requested_mode = I40E_FC_NONE; 1647 else 1648 return -EINVAL; 1649 1650 /* Tell the OS link is going down, the link will go back up when fw 1651 * says it is ready asynchronously 1652 */ 1653 i40e_print_link_message(vsi, false); 1654 netif_carrier_off(netdev); 1655 netif_tx_stop_all_queues(netdev); 1656 1657 /* Set the fc mode and only restart an if link is up*/ 1658 status = i40e_set_fc(hw, &aq_failures, link_up); 1659 1660 if (aq_failures & I40E_SET_FC_AQ_FAIL_GET) { 1661 netdev_info(netdev, "Set fc failed on the get_phy_capabilities call with err %s aq_err %s\n", 1662 i40e_stat_str(hw, status), 1663 i40e_aq_str(hw, hw->aq.asq_last_status)); 1664 err = -EAGAIN; 1665 } 1666 if (aq_failures & I40E_SET_FC_AQ_FAIL_SET) { 1667 netdev_info(netdev, "Set fc failed on the set_phy_config call with err %s aq_err %s\n", 1668 i40e_stat_str(hw, status), 1669 i40e_aq_str(hw, hw->aq.asq_last_status)); 1670 err = -EAGAIN; 1671 } 1672 if (aq_failures & I40E_SET_FC_AQ_FAIL_UPDATE) { 1673 netdev_info(netdev, "Set fc failed on the get_link_info call with err %s aq_err %s\n", 1674 i40e_stat_str(hw, status), 1675 i40e_aq_str(hw, hw->aq.asq_last_status)); 1676 err = -EAGAIN; 1677 } 1678 1679 if (!test_bit(__I40E_DOWN, pf->state) && is_an) { 1680 /* Give it a little more time to try to come back */ 1681 msleep(75); 1682 if (!test_bit(__I40E_DOWN, pf->state)) 1683 return i40e_nway_reset(netdev); 1684 } 1685 1686 return err; 1687 } 1688 1689 static u32 i40e_get_msglevel(struct net_device *netdev) 1690 { 1691 struct i40e_netdev_priv *np = netdev_priv(netdev); 1692 struct i40e_pf *pf = np->vsi->back; 1693 u32 debug_mask = pf->hw.debug_mask; 1694 1695 if (debug_mask) 1696 netdev_info(netdev, "i40e debug_mask: 0x%08X\n", debug_mask); 1697 1698 return pf->msg_enable; 1699 } 1700 1701 static void i40e_set_msglevel(struct net_device *netdev, u32 data) 1702 { 1703 struct i40e_netdev_priv *np = netdev_priv(netdev); 1704 struct i40e_pf *pf = np->vsi->back; 1705 1706 if (I40E_DEBUG_USER & data) 1707 pf->hw.debug_mask = data; 1708 else 1709 pf->msg_enable = data; 1710 } 1711 1712 static int i40e_get_regs_len(struct net_device *netdev) 1713 { 1714 int reg_count = 0; 1715 int i; 1716 1717 for (i = 0; i40e_reg_list[i].offset != 0; i++) 1718 reg_count += i40e_reg_list[i].elements; 1719 1720 return reg_count * sizeof(u32); 1721 } 1722 1723 static void i40e_get_regs(struct net_device *netdev, struct ethtool_regs *regs, 1724 void *p) 1725 { 1726 struct i40e_netdev_priv *np = netdev_priv(netdev); 1727 struct i40e_pf *pf = np->vsi->back; 1728 struct i40e_hw *hw = &pf->hw; 1729 u32 *reg_buf = p; 1730 unsigned int i, j, ri; 1731 u32 reg; 1732 1733 /* Tell ethtool which driver-version-specific regs output we have. 1734 * 1735 * At some point, if we have ethtool doing special formatting of 1736 * this data, it will rely on this version number to know how to 1737 * interpret things. Hence, this needs to be updated if/when the 1738 * diags register table is changed. 1739 */ 1740 regs->version = 1; 1741 1742 /* loop through the diags reg table for what to print */ 1743 ri = 0; 1744 for (i = 0; i40e_reg_list[i].offset != 0; i++) { 1745 for (j = 0; j < i40e_reg_list[i].elements; j++) { 1746 reg = i40e_reg_list[i].offset 1747 + (j * i40e_reg_list[i].stride); 1748 reg_buf[ri++] = rd32(hw, reg); 1749 } 1750 } 1751 1752 } 1753 1754 static int i40e_get_eeprom(struct net_device *netdev, 1755 struct ethtool_eeprom *eeprom, u8 *bytes) 1756 { 1757 struct i40e_netdev_priv *np = netdev_priv(netdev); 1758 struct i40e_hw *hw = &np->vsi->back->hw; 1759 struct i40e_pf *pf = np->vsi->back; 1760 int ret_val = 0, len, offset; 1761 u8 *eeprom_buff; 1762 u16 i, sectors; 1763 bool last; 1764 u32 magic; 1765 1766 #define I40E_NVM_SECTOR_SIZE 4096 1767 if (eeprom->len == 0) 1768 return -EINVAL; 1769 1770 /* check for NVMUpdate access method */ 1771 magic = hw->vendor_id | (hw->device_id << 16); 1772 if (eeprom->magic && eeprom->magic != magic) { 1773 struct i40e_nvm_access *cmd = (struct i40e_nvm_access *)eeprom; 1774 int errno = 0; 1775 1776 /* make sure it is the right magic for NVMUpdate */ 1777 if ((eeprom->magic >> 16) != hw->device_id) 1778 errno = -EINVAL; 1779 else if (test_bit(__I40E_RESET_RECOVERY_PENDING, pf->state) || 1780 test_bit(__I40E_RESET_INTR_RECEIVED, pf->state)) 1781 errno = -EBUSY; 1782 else 1783 ret_val = i40e_nvmupd_command(hw, cmd, bytes, &errno); 1784 1785 if ((errno || ret_val) && (hw->debug_mask & I40E_DEBUG_NVM)) 1786 dev_info(&pf->pdev->dev, 1787 "NVMUpdate read failed err=%d status=0x%x errno=%d module=%d offset=0x%x size=%d\n", 1788 ret_val, hw->aq.asq_last_status, errno, 1789 (u8)(cmd->config & I40E_NVM_MOD_PNT_MASK), 1790 cmd->offset, cmd->data_size); 1791 1792 return errno; 1793 } 1794 1795 /* normal ethtool get_eeprom support */ 1796 eeprom->magic = hw->vendor_id | (hw->device_id << 16); 1797 1798 eeprom_buff = kzalloc(eeprom->len, GFP_KERNEL); 1799 if (!eeprom_buff) 1800 return -ENOMEM; 1801 1802 ret_val = i40e_acquire_nvm(hw, I40E_RESOURCE_READ); 1803 if (ret_val) { 1804 dev_info(&pf->pdev->dev, 1805 "Failed Acquiring NVM resource for read err=%d status=0x%x\n", 1806 ret_val, hw->aq.asq_last_status); 1807 goto free_buff; 1808 } 1809 1810 sectors = eeprom->len / I40E_NVM_SECTOR_SIZE; 1811 sectors += (eeprom->len % I40E_NVM_SECTOR_SIZE) ? 1 : 0; 1812 len = I40E_NVM_SECTOR_SIZE; 1813 last = false; 1814 for (i = 0; i < sectors; i++) { 1815 if (i == (sectors - 1)) { 1816 len = eeprom->len - (I40E_NVM_SECTOR_SIZE * i); 1817 last = true; 1818 } 1819 offset = eeprom->offset + (I40E_NVM_SECTOR_SIZE * i), 1820 ret_val = i40e_aq_read_nvm(hw, 0x0, offset, len, 1821 (u8 *)eeprom_buff + (I40E_NVM_SECTOR_SIZE * i), 1822 last, NULL); 1823 if (ret_val && hw->aq.asq_last_status == I40E_AQ_RC_EPERM) { 1824 dev_info(&pf->pdev->dev, 1825 "read NVM failed, invalid offset 0x%x\n", 1826 offset); 1827 break; 1828 } else if (ret_val && 1829 hw->aq.asq_last_status == I40E_AQ_RC_EACCES) { 1830 dev_info(&pf->pdev->dev, 1831 "read NVM failed, access, offset 0x%x\n", 1832 offset); 1833 break; 1834 } else if (ret_val) { 1835 dev_info(&pf->pdev->dev, 1836 "read NVM failed offset %d err=%d status=0x%x\n", 1837 offset, ret_val, hw->aq.asq_last_status); 1838 break; 1839 } 1840 } 1841 1842 i40e_release_nvm(hw); 1843 memcpy(bytes, (u8 *)eeprom_buff, eeprom->len); 1844 free_buff: 1845 kfree(eeprom_buff); 1846 return ret_val; 1847 } 1848 1849 static int i40e_get_eeprom_len(struct net_device *netdev) 1850 { 1851 struct i40e_netdev_priv *np = netdev_priv(netdev); 1852 struct i40e_hw *hw = &np->vsi->back->hw; 1853 u32 val; 1854 1855 #define X722_EEPROM_SCOPE_LIMIT 0x5B9FFF 1856 if (hw->mac.type == I40E_MAC_X722) { 1857 val = X722_EEPROM_SCOPE_LIMIT + 1; 1858 return val; 1859 } 1860 val = (rd32(hw, I40E_GLPCI_LBARCTRL) 1861 & I40E_GLPCI_LBARCTRL_FL_SIZE_MASK) 1862 >> I40E_GLPCI_LBARCTRL_FL_SIZE_SHIFT; 1863 /* register returns value in power of 2, 64Kbyte chunks. */ 1864 val = (64 * 1024) * BIT(val); 1865 return val; 1866 } 1867 1868 static int i40e_set_eeprom(struct net_device *netdev, 1869 struct ethtool_eeprom *eeprom, u8 *bytes) 1870 { 1871 struct i40e_netdev_priv *np = netdev_priv(netdev); 1872 struct i40e_hw *hw = &np->vsi->back->hw; 1873 struct i40e_pf *pf = np->vsi->back; 1874 struct i40e_nvm_access *cmd = (struct i40e_nvm_access *)eeprom; 1875 int ret_val = 0; 1876 int errno = 0; 1877 u32 magic; 1878 1879 /* normal ethtool set_eeprom is not supported */ 1880 magic = hw->vendor_id | (hw->device_id << 16); 1881 if (eeprom->magic == magic) 1882 errno = -EOPNOTSUPP; 1883 /* check for NVMUpdate access method */ 1884 else if (!eeprom->magic || (eeprom->magic >> 16) != hw->device_id) 1885 errno = -EINVAL; 1886 else if (test_bit(__I40E_RESET_RECOVERY_PENDING, pf->state) || 1887 test_bit(__I40E_RESET_INTR_RECEIVED, pf->state)) 1888 errno = -EBUSY; 1889 else 1890 ret_val = i40e_nvmupd_command(hw, cmd, bytes, &errno); 1891 1892 if ((errno || ret_val) && (hw->debug_mask & I40E_DEBUG_NVM)) 1893 dev_info(&pf->pdev->dev, 1894 "NVMUpdate write failed err=%d status=0x%x errno=%d module=%d offset=0x%x size=%d\n", 1895 ret_val, hw->aq.asq_last_status, errno, 1896 (u8)(cmd->config & I40E_NVM_MOD_PNT_MASK), 1897 cmd->offset, cmd->data_size); 1898 1899 return errno; 1900 } 1901 1902 static void i40e_get_drvinfo(struct net_device *netdev, 1903 struct ethtool_drvinfo *drvinfo) 1904 { 1905 struct i40e_netdev_priv *np = netdev_priv(netdev); 1906 struct i40e_vsi *vsi = np->vsi; 1907 struct i40e_pf *pf = vsi->back; 1908 1909 strlcpy(drvinfo->driver, i40e_driver_name, sizeof(drvinfo->driver)); 1910 strlcpy(drvinfo->fw_version, i40e_nvm_version_str(&pf->hw), 1911 sizeof(drvinfo->fw_version)); 1912 strlcpy(drvinfo->bus_info, pci_name(pf->pdev), 1913 sizeof(drvinfo->bus_info)); 1914 drvinfo->n_priv_flags = I40E_PRIV_FLAGS_STR_LEN; 1915 if (pf->hw.pf_id == 0) 1916 drvinfo->n_priv_flags += I40E_GL_PRIV_FLAGS_STR_LEN; 1917 } 1918 1919 static void i40e_get_ringparam(struct net_device *netdev, 1920 struct ethtool_ringparam *ring, 1921 struct kernel_ethtool_ringparam *kernel_ring, 1922 struct netlink_ext_ack *extack) 1923 { 1924 struct i40e_netdev_priv *np = netdev_priv(netdev); 1925 struct i40e_pf *pf = np->vsi->back; 1926 struct i40e_vsi *vsi = pf->vsi[pf->lan_vsi]; 1927 1928 ring->rx_max_pending = I40E_MAX_NUM_DESCRIPTORS; 1929 ring->tx_max_pending = I40E_MAX_NUM_DESCRIPTORS; 1930 ring->rx_mini_max_pending = 0; 1931 ring->rx_jumbo_max_pending = 0; 1932 ring->rx_pending = vsi->rx_rings[0]->count; 1933 ring->tx_pending = vsi->tx_rings[0]->count; 1934 ring->rx_mini_pending = 0; 1935 ring->rx_jumbo_pending = 0; 1936 } 1937 1938 static bool i40e_active_tx_ring_index(struct i40e_vsi *vsi, u16 index) 1939 { 1940 if (i40e_enabled_xdp_vsi(vsi)) { 1941 return index < vsi->num_queue_pairs || 1942 (index >= vsi->alloc_queue_pairs && 1943 index < vsi->alloc_queue_pairs + vsi->num_queue_pairs); 1944 } 1945 1946 return index < vsi->num_queue_pairs; 1947 } 1948 1949 static int i40e_set_ringparam(struct net_device *netdev, 1950 struct ethtool_ringparam *ring, 1951 struct kernel_ethtool_ringparam *kernel_ring, 1952 struct netlink_ext_ack *extack) 1953 { 1954 struct i40e_ring *tx_rings = NULL, *rx_rings = NULL; 1955 struct i40e_netdev_priv *np = netdev_priv(netdev); 1956 struct i40e_hw *hw = &np->vsi->back->hw; 1957 struct i40e_vsi *vsi = np->vsi; 1958 struct i40e_pf *pf = vsi->back; 1959 u32 new_rx_count, new_tx_count; 1960 u16 tx_alloc_queue_pairs; 1961 int timeout = 50; 1962 int i, err = 0; 1963 1964 if ((ring->rx_mini_pending) || (ring->rx_jumbo_pending)) 1965 return -EINVAL; 1966 1967 if (ring->tx_pending > I40E_MAX_NUM_DESCRIPTORS || 1968 ring->tx_pending < I40E_MIN_NUM_DESCRIPTORS || 1969 ring->rx_pending > I40E_MAX_NUM_DESCRIPTORS || 1970 ring->rx_pending < I40E_MIN_NUM_DESCRIPTORS) { 1971 netdev_info(netdev, 1972 "Descriptors requested (Tx: %d / Rx: %d) out of range [%d-%d]\n", 1973 ring->tx_pending, ring->rx_pending, 1974 I40E_MIN_NUM_DESCRIPTORS, I40E_MAX_NUM_DESCRIPTORS); 1975 return -EINVAL; 1976 } 1977 1978 new_tx_count = ALIGN(ring->tx_pending, I40E_REQ_DESCRIPTOR_MULTIPLE); 1979 new_rx_count = ALIGN(ring->rx_pending, I40E_REQ_DESCRIPTOR_MULTIPLE); 1980 1981 /* if nothing to do return success */ 1982 if ((new_tx_count == vsi->tx_rings[0]->count) && 1983 (new_rx_count == vsi->rx_rings[0]->count)) 1984 return 0; 1985 1986 /* If there is a AF_XDP page pool attached to any of Rx rings, 1987 * disallow changing the number of descriptors -- regardless 1988 * if the netdev is running or not. 1989 */ 1990 if (i40e_xsk_any_rx_ring_enabled(vsi)) 1991 return -EBUSY; 1992 1993 while (test_and_set_bit(__I40E_CONFIG_BUSY, pf->state)) { 1994 timeout--; 1995 if (!timeout) 1996 return -EBUSY; 1997 usleep_range(1000, 2000); 1998 } 1999 2000 if (!netif_running(vsi->netdev)) { 2001 /* simple case - set for the next time the netdev is started */ 2002 for (i = 0; i < vsi->num_queue_pairs; i++) { 2003 vsi->tx_rings[i]->count = new_tx_count; 2004 vsi->rx_rings[i]->count = new_rx_count; 2005 if (i40e_enabled_xdp_vsi(vsi)) 2006 vsi->xdp_rings[i]->count = new_tx_count; 2007 } 2008 vsi->num_tx_desc = new_tx_count; 2009 vsi->num_rx_desc = new_rx_count; 2010 goto done; 2011 } 2012 2013 /* We can't just free everything and then setup again, 2014 * because the ISRs in MSI-X mode get passed pointers 2015 * to the Tx and Rx ring structs. 2016 */ 2017 2018 /* alloc updated Tx and XDP Tx resources */ 2019 tx_alloc_queue_pairs = vsi->alloc_queue_pairs * 2020 (i40e_enabled_xdp_vsi(vsi) ? 2 : 1); 2021 if (new_tx_count != vsi->tx_rings[0]->count) { 2022 netdev_info(netdev, 2023 "Changing Tx descriptor count from %d to %d.\n", 2024 vsi->tx_rings[0]->count, new_tx_count); 2025 tx_rings = kcalloc(tx_alloc_queue_pairs, 2026 sizeof(struct i40e_ring), GFP_KERNEL); 2027 if (!tx_rings) { 2028 err = -ENOMEM; 2029 goto done; 2030 } 2031 2032 for (i = 0; i < tx_alloc_queue_pairs; i++) { 2033 if (!i40e_active_tx_ring_index(vsi, i)) 2034 continue; 2035 2036 tx_rings[i] = *vsi->tx_rings[i]; 2037 tx_rings[i].count = new_tx_count; 2038 /* the desc and bi pointers will be reallocated in the 2039 * setup call 2040 */ 2041 tx_rings[i].desc = NULL; 2042 tx_rings[i].rx_bi = NULL; 2043 err = i40e_setup_tx_descriptors(&tx_rings[i]); 2044 if (err) { 2045 while (i) { 2046 i--; 2047 if (!i40e_active_tx_ring_index(vsi, i)) 2048 continue; 2049 i40e_free_tx_resources(&tx_rings[i]); 2050 } 2051 kfree(tx_rings); 2052 tx_rings = NULL; 2053 2054 goto done; 2055 } 2056 } 2057 } 2058 2059 /* alloc updated Rx resources */ 2060 if (new_rx_count != vsi->rx_rings[0]->count) { 2061 netdev_info(netdev, 2062 "Changing Rx descriptor count from %d to %d\n", 2063 vsi->rx_rings[0]->count, new_rx_count); 2064 rx_rings = kcalloc(vsi->alloc_queue_pairs, 2065 sizeof(struct i40e_ring), GFP_KERNEL); 2066 if (!rx_rings) { 2067 err = -ENOMEM; 2068 goto free_tx; 2069 } 2070 2071 for (i = 0; i < vsi->num_queue_pairs; i++) { 2072 u16 unused; 2073 2074 /* clone ring and setup updated count */ 2075 rx_rings[i] = *vsi->rx_rings[i]; 2076 rx_rings[i].count = new_rx_count; 2077 /* the desc and bi pointers will be reallocated in the 2078 * setup call 2079 */ 2080 rx_rings[i].desc = NULL; 2081 rx_rings[i].rx_bi = NULL; 2082 /* Clear cloned XDP RX-queue info before setup call */ 2083 memset(&rx_rings[i].xdp_rxq, 0, sizeof(rx_rings[i].xdp_rxq)); 2084 /* this is to allow wr32 to have something to write to 2085 * during early allocation of Rx buffers 2086 */ 2087 rx_rings[i].tail = hw->hw_addr + I40E_PRTGEN_STATUS; 2088 err = i40e_setup_rx_descriptors(&rx_rings[i]); 2089 if (err) 2090 goto rx_unwind; 2091 err = i40e_alloc_rx_bi(&rx_rings[i]); 2092 if (err) 2093 goto rx_unwind; 2094 2095 /* now allocate the Rx buffers to make sure the OS 2096 * has enough memory, any failure here means abort 2097 */ 2098 unused = I40E_DESC_UNUSED(&rx_rings[i]); 2099 err = i40e_alloc_rx_buffers(&rx_rings[i], unused); 2100 rx_unwind: 2101 if (err) { 2102 do { 2103 i40e_free_rx_resources(&rx_rings[i]); 2104 } while (i--); 2105 kfree(rx_rings); 2106 rx_rings = NULL; 2107 2108 goto free_tx; 2109 } 2110 } 2111 } 2112 2113 /* Bring interface down, copy in the new ring info, 2114 * then restore the interface 2115 */ 2116 i40e_down(vsi); 2117 2118 if (tx_rings) { 2119 for (i = 0; i < tx_alloc_queue_pairs; i++) { 2120 if (i40e_active_tx_ring_index(vsi, i)) { 2121 i40e_free_tx_resources(vsi->tx_rings[i]); 2122 *vsi->tx_rings[i] = tx_rings[i]; 2123 } 2124 } 2125 kfree(tx_rings); 2126 tx_rings = NULL; 2127 } 2128 2129 if (rx_rings) { 2130 for (i = 0; i < vsi->num_queue_pairs; i++) { 2131 i40e_free_rx_resources(vsi->rx_rings[i]); 2132 /* get the real tail offset */ 2133 rx_rings[i].tail = vsi->rx_rings[i]->tail; 2134 /* this is to fake out the allocation routine 2135 * into thinking it has to realloc everything 2136 * but the recycling logic will let us re-use 2137 * the buffers allocated above 2138 */ 2139 rx_rings[i].next_to_use = 0; 2140 rx_rings[i].next_to_clean = 0; 2141 rx_rings[i].next_to_alloc = 0; 2142 /* do a struct copy */ 2143 *vsi->rx_rings[i] = rx_rings[i]; 2144 } 2145 kfree(rx_rings); 2146 rx_rings = NULL; 2147 } 2148 2149 vsi->num_tx_desc = new_tx_count; 2150 vsi->num_rx_desc = new_rx_count; 2151 i40e_up(vsi); 2152 2153 free_tx: 2154 /* error cleanup if the Rx allocations failed after getting Tx */ 2155 if (tx_rings) { 2156 for (i = 0; i < tx_alloc_queue_pairs; i++) { 2157 if (i40e_active_tx_ring_index(vsi, i)) 2158 i40e_free_tx_resources(vsi->tx_rings[i]); 2159 } 2160 kfree(tx_rings); 2161 tx_rings = NULL; 2162 } 2163 2164 done: 2165 clear_bit(__I40E_CONFIG_BUSY, pf->state); 2166 2167 return err; 2168 } 2169 2170 /** 2171 * i40e_get_stats_count - return the stats count for a device 2172 * @netdev: the netdev to return the count for 2173 * 2174 * Returns the total number of statistics for this netdev. Note that even 2175 * though this is a function, it is required that the count for a specific 2176 * netdev must never change. Basing the count on static values such as the 2177 * maximum number of queues or the device type is ok. However, the API for 2178 * obtaining stats is *not* safe against changes based on non-static 2179 * values such as the *current* number of queues, or runtime flags. 2180 * 2181 * If a statistic is not always enabled, return it as part of the count 2182 * anyways, always return its string, and report its value as zero. 2183 **/ 2184 static int i40e_get_stats_count(struct net_device *netdev) 2185 { 2186 struct i40e_netdev_priv *np = netdev_priv(netdev); 2187 struct i40e_vsi *vsi = np->vsi; 2188 struct i40e_pf *pf = vsi->back; 2189 int stats_len; 2190 2191 if (vsi == pf->vsi[pf->lan_vsi] && pf->hw.partition_id == 1) 2192 stats_len = I40E_PF_STATS_LEN; 2193 else 2194 stats_len = I40E_VSI_STATS_LEN; 2195 2196 /* The number of stats reported for a given net_device must remain 2197 * constant throughout the life of that device. 2198 * 2199 * This is because the API for obtaining the size, strings, and stats 2200 * is spread out over three separate ethtool ioctls. There is no safe 2201 * way to lock the number of stats across these calls, so we must 2202 * assume that they will never change. 2203 * 2204 * Due to this, we report the maximum number of queues, even if not 2205 * every queue is currently configured. Since we always allocate 2206 * queues in pairs, we'll just use netdev->num_tx_queues * 2. This 2207 * works because the num_tx_queues is set at device creation and never 2208 * changes. 2209 */ 2210 stats_len += I40E_QUEUE_STATS_LEN * 2 * netdev->num_tx_queues; 2211 2212 return stats_len; 2213 } 2214 2215 static int i40e_get_sset_count(struct net_device *netdev, int sset) 2216 { 2217 struct i40e_netdev_priv *np = netdev_priv(netdev); 2218 struct i40e_vsi *vsi = np->vsi; 2219 struct i40e_pf *pf = vsi->back; 2220 2221 switch (sset) { 2222 case ETH_SS_TEST: 2223 return I40E_TEST_LEN; 2224 case ETH_SS_STATS: 2225 return i40e_get_stats_count(netdev); 2226 case ETH_SS_PRIV_FLAGS: 2227 return I40E_PRIV_FLAGS_STR_LEN + 2228 (pf->hw.pf_id == 0 ? I40E_GL_PRIV_FLAGS_STR_LEN : 0); 2229 default: 2230 return -EOPNOTSUPP; 2231 } 2232 } 2233 2234 /** 2235 * i40e_get_veb_tc_stats - copy VEB TC statistics to formatted structure 2236 * @tc: the TC statistics in VEB structure (veb->tc_stats) 2237 * @i: the index of traffic class in (veb->tc_stats) structure to copy 2238 * 2239 * Copy VEB TC statistics from structure of arrays (veb->tc_stats) to 2240 * one dimensional structure i40e_cp_veb_tc_stats. 2241 * Produce formatted i40e_cp_veb_tc_stats structure of the VEB TC 2242 * statistics for the given TC. 2243 **/ 2244 static struct i40e_cp_veb_tc_stats 2245 i40e_get_veb_tc_stats(struct i40e_veb_tc_stats *tc, unsigned int i) 2246 { 2247 struct i40e_cp_veb_tc_stats veb_tc = { 2248 .tc_rx_packets = tc->tc_rx_packets[i], 2249 .tc_rx_bytes = tc->tc_rx_bytes[i], 2250 .tc_tx_packets = tc->tc_tx_packets[i], 2251 .tc_tx_bytes = tc->tc_tx_bytes[i], 2252 }; 2253 2254 return veb_tc; 2255 } 2256 2257 /** 2258 * i40e_get_pfc_stats - copy HW PFC statistics to formatted structure 2259 * @pf: the PF device structure 2260 * @i: the priority value to copy 2261 * 2262 * The PFC stats are found as arrays in pf->stats, which is not easy to pass 2263 * into i40e_add_ethtool_stats. Produce a formatted i40e_pfc_stats structure 2264 * of the PFC stats for the given priority. 2265 **/ 2266 static inline struct i40e_pfc_stats 2267 i40e_get_pfc_stats(struct i40e_pf *pf, unsigned int i) 2268 { 2269 #define I40E_GET_PFC_STAT(stat, priority) \ 2270 .stat = pf->stats.stat[priority] 2271 2272 struct i40e_pfc_stats pfc = { 2273 I40E_GET_PFC_STAT(priority_xon_rx, i), 2274 I40E_GET_PFC_STAT(priority_xoff_rx, i), 2275 I40E_GET_PFC_STAT(priority_xon_tx, i), 2276 I40E_GET_PFC_STAT(priority_xoff_tx, i), 2277 I40E_GET_PFC_STAT(priority_xon_2_xoff, i), 2278 }; 2279 return pfc; 2280 } 2281 2282 /** 2283 * i40e_get_ethtool_stats - copy stat values into supplied buffer 2284 * @netdev: the netdev to collect stats for 2285 * @stats: ethtool stats command structure 2286 * @data: ethtool supplied buffer 2287 * 2288 * Copy the stats values for this netdev into the buffer. Expects data to be 2289 * pre-allocated to the size returned by i40e_get_stats_count.. Note that all 2290 * statistics must be copied in a static order, and the count must not change 2291 * for a given netdev. See i40e_get_stats_count for more details. 2292 * 2293 * If a statistic is not currently valid (such as a disabled queue), this 2294 * function reports its value as zero. 2295 **/ 2296 static void i40e_get_ethtool_stats(struct net_device *netdev, 2297 struct ethtool_stats *stats, u64 *data) 2298 { 2299 struct i40e_netdev_priv *np = netdev_priv(netdev); 2300 struct i40e_vsi *vsi = np->vsi; 2301 struct i40e_pf *pf = vsi->back; 2302 struct i40e_veb *veb = NULL; 2303 unsigned int i; 2304 bool veb_stats; 2305 u64 *p = data; 2306 2307 i40e_update_stats(vsi); 2308 2309 i40e_add_ethtool_stats(&data, i40e_get_vsi_stats_struct(vsi), 2310 i40e_gstrings_net_stats); 2311 2312 i40e_add_ethtool_stats(&data, vsi, i40e_gstrings_misc_stats); 2313 2314 rcu_read_lock(); 2315 for (i = 0; i < netdev->num_tx_queues; i++) { 2316 i40e_add_queue_stats(&data, READ_ONCE(vsi->tx_rings[i])); 2317 i40e_add_queue_stats(&data, READ_ONCE(vsi->rx_rings[i])); 2318 } 2319 rcu_read_unlock(); 2320 2321 if (vsi != pf->vsi[pf->lan_vsi] || pf->hw.partition_id != 1) 2322 goto check_data_pointer; 2323 2324 veb_stats = ((pf->lan_veb != I40E_NO_VEB) && 2325 (pf->lan_veb < I40E_MAX_VEB) && 2326 (pf->flags & I40E_FLAG_VEB_STATS_ENABLED)); 2327 2328 if (veb_stats) { 2329 veb = pf->veb[pf->lan_veb]; 2330 i40e_update_veb_stats(veb); 2331 } 2332 2333 /* If veb stats aren't enabled, pass NULL instead of the veb so that 2334 * we initialize stats to zero and update the data pointer 2335 * intelligently 2336 */ 2337 i40e_add_ethtool_stats(&data, veb_stats ? veb : NULL, 2338 i40e_gstrings_veb_stats); 2339 2340 for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++) 2341 if (veb_stats) { 2342 struct i40e_cp_veb_tc_stats veb_tc = 2343 i40e_get_veb_tc_stats(&veb->tc_stats, i); 2344 2345 i40e_add_ethtool_stats(&data, &veb_tc, 2346 i40e_gstrings_veb_tc_stats); 2347 } else { 2348 i40e_add_ethtool_stats(&data, NULL, 2349 i40e_gstrings_veb_tc_stats); 2350 } 2351 2352 i40e_add_ethtool_stats(&data, pf, i40e_gstrings_stats); 2353 2354 for (i = 0; i < I40E_MAX_USER_PRIORITY; i++) { 2355 struct i40e_pfc_stats pfc = i40e_get_pfc_stats(pf, i); 2356 2357 i40e_add_ethtool_stats(&data, &pfc, i40e_gstrings_pfc_stats); 2358 } 2359 2360 check_data_pointer: 2361 WARN_ONCE(data - p != i40e_get_stats_count(netdev), 2362 "ethtool stats count mismatch!"); 2363 } 2364 2365 /** 2366 * i40e_get_stat_strings - copy stat strings into supplied buffer 2367 * @netdev: the netdev to collect strings for 2368 * @data: supplied buffer to copy strings into 2369 * 2370 * Copy the strings related to stats for this netdev. Expects data to be 2371 * pre-allocated with the size reported by i40e_get_stats_count. Note that the 2372 * strings must be copied in a static order and the total count must not 2373 * change for a given netdev. See i40e_get_stats_count for more details. 2374 **/ 2375 static void i40e_get_stat_strings(struct net_device *netdev, u8 *data) 2376 { 2377 struct i40e_netdev_priv *np = netdev_priv(netdev); 2378 struct i40e_vsi *vsi = np->vsi; 2379 struct i40e_pf *pf = vsi->back; 2380 unsigned int i; 2381 u8 *p = data; 2382 2383 i40e_add_stat_strings(&data, i40e_gstrings_net_stats); 2384 2385 i40e_add_stat_strings(&data, i40e_gstrings_misc_stats); 2386 2387 for (i = 0; i < netdev->num_tx_queues; i++) { 2388 i40e_add_stat_strings(&data, i40e_gstrings_queue_stats, 2389 "tx", i); 2390 i40e_add_stat_strings(&data, i40e_gstrings_queue_stats, 2391 "rx", i); 2392 } 2393 2394 if (vsi != pf->vsi[pf->lan_vsi] || pf->hw.partition_id != 1) 2395 goto check_data_pointer; 2396 2397 i40e_add_stat_strings(&data, i40e_gstrings_veb_stats); 2398 2399 for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++) 2400 i40e_add_stat_strings(&data, i40e_gstrings_veb_tc_stats, i); 2401 2402 i40e_add_stat_strings(&data, i40e_gstrings_stats); 2403 2404 for (i = 0; i < I40E_MAX_USER_PRIORITY; i++) 2405 i40e_add_stat_strings(&data, i40e_gstrings_pfc_stats, i); 2406 2407 check_data_pointer: 2408 WARN_ONCE(data - p != i40e_get_stats_count(netdev) * ETH_GSTRING_LEN, 2409 "stat strings count mismatch!"); 2410 } 2411 2412 static void i40e_get_priv_flag_strings(struct net_device *netdev, u8 *data) 2413 { 2414 struct i40e_netdev_priv *np = netdev_priv(netdev); 2415 struct i40e_vsi *vsi = np->vsi; 2416 struct i40e_pf *pf = vsi->back; 2417 unsigned int i; 2418 u8 *p = data; 2419 2420 for (i = 0; i < I40E_PRIV_FLAGS_STR_LEN; i++) 2421 ethtool_sprintf(&p, i40e_gstrings_priv_flags[i].flag_string); 2422 if (pf->hw.pf_id != 0) 2423 return; 2424 for (i = 0; i < I40E_GL_PRIV_FLAGS_STR_LEN; i++) 2425 ethtool_sprintf(&p, i40e_gl_gstrings_priv_flags[i].flag_string); 2426 } 2427 2428 static void i40e_get_strings(struct net_device *netdev, u32 stringset, 2429 u8 *data) 2430 { 2431 switch (stringset) { 2432 case ETH_SS_TEST: 2433 memcpy(data, i40e_gstrings_test, 2434 I40E_TEST_LEN * ETH_GSTRING_LEN); 2435 break; 2436 case ETH_SS_STATS: 2437 i40e_get_stat_strings(netdev, data); 2438 break; 2439 case ETH_SS_PRIV_FLAGS: 2440 i40e_get_priv_flag_strings(netdev, data); 2441 break; 2442 default: 2443 break; 2444 } 2445 } 2446 2447 static int i40e_get_ts_info(struct net_device *dev, 2448 struct ethtool_ts_info *info) 2449 { 2450 struct i40e_pf *pf = i40e_netdev_to_pf(dev); 2451 2452 /* only report HW timestamping if PTP is enabled */ 2453 if (!(pf->flags & I40E_FLAG_PTP)) 2454 return ethtool_op_get_ts_info(dev, info); 2455 2456 info->so_timestamping = SOF_TIMESTAMPING_TX_SOFTWARE | 2457 SOF_TIMESTAMPING_RX_SOFTWARE | 2458 SOF_TIMESTAMPING_SOFTWARE | 2459 SOF_TIMESTAMPING_TX_HARDWARE | 2460 SOF_TIMESTAMPING_RX_HARDWARE | 2461 SOF_TIMESTAMPING_RAW_HARDWARE; 2462 2463 if (pf->ptp_clock) 2464 info->phc_index = ptp_clock_index(pf->ptp_clock); 2465 else 2466 info->phc_index = -1; 2467 2468 info->tx_types = BIT(HWTSTAMP_TX_OFF) | BIT(HWTSTAMP_TX_ON); 2469 2470 info->rx_filters = BIT(HWTSTAMP_FILTER_NONE) | 2471 BIT(HWTSTAMP_FILTER_PTP_V2_L2_EVENT) | 2472 BIT(HWTSTAMP_FILTER_PTP_V2_L2_SYNC) | 2473 BIT(HWTSTAMP_FILTER_PTP_V2_L2_DELAY_REQ); 2474 2475 if (pf->hw_features & I40E_HW_PTP_L4_CAPABLE) 2476 info->rx_filters |= BIT(HWTSTAMP_FILTER_PTP_V1_L4_SYNC) | 2477 BIT(HWTSTAMP_FILTER_PTP_V1_L4_DELAY_REQ) | 2478 BIT(HWTSTAMP_FILTER_PTP_V2_EVENT) | 2479 BIT(HWTSTAMP_FILTER_PTP_V2_L4_EVENT) | 2480 BIT(HWTSTAMP_FILTER_PTP_V2_SYNC) | 2481 BIT(HWTSTAMP_FILTER_PTP_V2_L4_SYNC) | 2482 BIT(HWTSTAMP_FILTER_PTP_V2_DELAY_REQ) | 2483 BIT(HWTSTAMP_FILTER_PTP_V2_L4_DELAY_REQ); 2484 2485 return 0; 2486 } 2487 2488 static u64 i40e_link_test(struct net_device *netdev, u64 *data) 2489 { 2490 struct i40e_netdev_priv *np = netdev_priv(netdev); 2491 struct i40e_pf *pf = np->vsi->back; 2492 i40e_status status; 2493 bool link_up = false; 2494 2495 netif_info(pf, hw, netdev, "link test\n"); 2496 status = i40e_get_link_status(&pf->hw, &link_up); 2497 if (status) { 2498 netif_err(pf, drv, netdev, "link query timed out, please retry test\n"); 2499 *data = 1; 2500 return *data; 2501 } 2502 2503 if (link_up) 2504 *data = 0; 2505 else 2506 *data = 1; 2507 2508 return *data; 2509 } 2510 2511 static u64 i40e_reg_test(struct net_device *netdev, u64 *data) 2512 { 2513 struct i40e_netdev_priv *np = netdev_priv(netdev); 2514 struct i40e_pf *pf = np->vsi->back; 2515 2516 netif_info(pf, hw, netdev, "register test\n"); 2517 *data = i40e_diag_reg_test(&pf->hw); 2518 2519 return *data; 2520 } 2521 2522 static u64 i40e_eeprom_test(struct net_device *netdev, u64 *data) 2523 { 2524 struct i40e_netdev_priv *np = netdev_priv(netdev); 2525 struct i40e_pf *pf = np->vsi->back; 2526 2527 netif_info(pf, hw, netdev, "eeprom test\n"); 2528 *data = i40e_diag_eeprom_test(&pf->hw); 2529 2530 /* forcebly clear the NVM Update state machine */ 2531 pf->hw.nvmupd_state = I40E_NVMUPD_STATE_INIT; 2532 2533 return *data; 2534 } 2535 2536 static u64 i40e_intr_test(struct net_device *netdev, u64 *data) 2537 { 2538 struct i40e_netdev_priv *np = netdev_priv(netdev); 2539 struct i40e_pf *pf = np->vsi->back; 2540 u16 swc_old = pf->sw_int_count; 2541 2542 netif_info(pf, hw, netdev, "interrupt test\n"); 2543 wr32(&pf->hw, I40E_PFINT_DYN_CTL0, 2544 (I40E_PFINT_DYN_CTL0_INTENA_MASK | 2545 I40E_PFINT_DYN_CTL0_SWINT_TRIG_MASK | 2546 I40E_PFINT_DYN_CTL0_ITR_INDX_MASK | 2547 I40E_PFINT_DYN_CTL0_SW_ITR_INDX_ENA_MASK | 2548 I40E_PFINT_DYN_CTL0_SW_ITR_INDX_MASK)); 2549 usleep_range(1000, 2000); 2550 *data = (swc_old == pf->sw_int_count); 2551 2552 return *data; 2553 } 2554 2555 static inline bool i40e_active_vfs(struct i40e_pf *pf) 2556 { 2557 struct i40e_vf *vfs = pf->vf; 2558 int i; 2559 2560 for (i = 0; i < pf->num_alloc_vfs; i++) 2561 if (test_bit(I40E_VF_STATE_ACTIVE, &vfs[i].vf_states)) 2562 return true; 2563 return false; 2564 } 2565 2566 static inline bool i40e_active_vmdqs(struct i40e_pf *pf) 2567 { 2568 return !!i40e_find_vsi_by_type(pf, I40E_VSI_VMDQ2); 2569 } 2570 2571 static void i40e_diag_test(struct net_device *netdev, 2572 struct ethtool_test *eth_test, u64 *data) 2573 { 2574 struct i40e_netdev_priv *np = netdev_priv(netdev); 2575 bool if_running = netif_running(netdev); 2576 struct i40e_pf *pf = np->vsi->back; 2577 2578 if (eth_test->flags == ETH_TEST_FL_OFFLINE) { 2579 /* Offline tests */ 2580 netif_info(pf, drv, netdev, "offline testing starting\n"); 2581 2582 set_bit(__I40E_TESTING, pf->state); 2583 2584 if (i40e_active_vfs(pf) || i40e_active_vmdqs(pf)) { 2585 dev_warn(&pf->pdev->dev, 2586 "Please take active VFs and Netqueues offline and restart the adapter before running NIC diagnostics\n"); 2587 data[I40E_ETH_TEST_REG] = 1; 2588 data[I40E_ETH_TEST_EEPROM] = 1; 2589 data[I40E_ETH_TEST_INTR] = 1; 2590 data[I40E_ETH_TEST_LINK] = 1; 2591 eth_test->flags |= ETH_TEST_FL_FAILED; 2592 clear_bit(__I40E_TESTING, pf->state); 2593 goto skip_ol_tests; 2594 } 2595 2596 /* If the device is online then take it offline */ 2597 if (if_running) 2598 /* indicate we're in test mode */ 2599 i40e_close(netdev); 2600 else 2601 /* This reset does not affect link - if it is 2602 * changed to a type of reset that does affect 2603 * link then the following link test would have 2604 * to be moved to before the reset 2605 */ 2606 i40e_do_reset(pf, BIT(__I40E_PF_RESET_REQUESTED), true); 2607 2608 if (i40e_link_test(netdev, &data[I40E_ETH_TEST_LINK])) 2609 eth_test->flags |= ETH_TEST_FL_FAILED; 2610 2611 if (i40e_eeprom_test(netdev, &data[I40E_ETH_TEST_EEPROM])) 2612 eth_test->flags |= ETH_TEST_FL_FAILED; 2613 2614 if (i40e_intr_test(netdev, &data[I40E_ETH_TEST_INTR])) 2615 eth_test->flags |= ETH_TEST_FL_FAILED; 2616 2617 /* run reg test last, a reset is required after it */ 2618 if (i40e_reg_test(netdev, &data[I40E_ETH_TEST_REG])) 2619 eth_test->flags |= ETH_TEST_FL_FAILED; 2620 2621 clear_bit(__I40E_TESTING, pf->state); 2622 i40e_do_reset(pf, BIT(__I40E_PF_RESET_REQUESTED), true); 2623 2624 if (if_running) 2625 i40e_open(netdev); 2626 } else { 2627 /* Online tests */ 2628 netif_info(pf, drv, netdev, "online testing starting\n"); 2629 2630 if (i40e_link_test(netdev, &data[I40E_ETH_TEST_LINK])) 2631 eth_test->flags |= ETH_TEST_FL_FAILED; 2632 2633 /* Offline only tests, not run in online; pass by default */ 2634 data[I40E_ETH_TEST_REG] = 0; 2635 data[I40E_ETH_TEST_EEPROM] = 0; 2636 data[I40E_ETH_TEST_INTR] = 0; 2637 } 2638 2639 skip_ol_tests: 2640 2641 netif_info(pf, drv, netdev, "testing finished\n"); 2642 } 2643 2644 static void i40e_get_wol(struct net_device *netdev, 2645 struct ethtool_wolinfo *wol) 2646 { 2647 struct i40e_netdev_priv *np = netdev_priv(netdev); 2648 struct i40e_pf *pf = np->vsi->back; 2649 struct i40e_hw *hw = &pf->hw; 2650 u16 wol_nvm_bits; 2651 2652 /* NVM bit on means WoL disabled for the port */ 2653 i40e_read_nvm_word(hw, I40E_SR_NVM_WAKE_ON_LAN, &wol_nvm_bits); 2654 if ((BIT(hw->port) & wol_nvm_bits) || (hw->partition_id != 1)) { 2655 wol->supported = 0; 2656 wol->wolopts = 0; 2657 } else { 2658 wol->supported = WAKE_MAGIC; 2659 wol->wolopts = (pf->wol_en ? WAKE_MAGIC : 0); 2660 } 2661 } 2662 2663 /** 2664 * i40e_set_wol - set the WakeOnLAN configuration 2665 * @netdev: the netdev in question 2666 * @wol: the ethtool WoL setting data 2667 **/ 2668 static int i40e_set_wol(struct net_device *netdev, struct ethtool_wolinfo *wol) 2669 { 2670 struct i40e_netdev_priv *np = netdev_priv(netdev); 2671 struct i40e_pf *pf = np->vsi->back; 2672 struct i40e_vsi *vsi = np->vsi; 2673 struct i40e_hw *hw = &pf->hw; 2674 u16 wol_nvm_bits; 2675 2676 /* WoL not supported if this isn't the controlling PF on the port */ 2677 if (hw->partition_id != 1) { 2678 i40e_partition_setting_complaint(pf); 2679 return -EOPNOTSUPP; 2680 } 2681 2682 if (vsi != pf->vsi[pf->lan_vsi]) 2683 return -EOPNOTSUPP; 2684 2685 /* NVM bit on means WoL disabled for the port */ 2686 i40e_read_nvm_word(hw, I40E_SR_NVM_WAKE_ON_LAN, &wol_nvm_bits); 2687 if (BIT(hw->port) & wol_nvm_bits) 2688 return -EOPNOTSUPP; 2689 2690 /* only magic packet is supported */ 2691 if (wol->wolopts & ~WAKE_MAGIC) 2692 return -EOPNOTSUPP; 2693 2694 /* is this a new value? */ 2695 if (pf->wol_en != !!wol->wolopts) { 2696 pf->wol_en = !!wol->wolopts; 2697 device_set_wakeup_enable(&pf->pdev->dev, pf->wol_en); 2698 } 2699 2700 return 0; 2701 } 2702 2703 static int i40e_set_phys_id(struct net_device *netdev, 2704 enum ethtool_phys_id_state state) 2705 { 2706 struct i40e_netdev_priv *np = netdev_priv(netdev); 2707 i40e_status ret = 0; 2708 struct i40e_pf *pf = np->vsi->back; 2709 struct i40e_hw *hw = &pf->hw; 2710 int blink_freq = 2; 2711 u16 temp_status; 2712 2713 switch (state) { 2714 case ETHTOOL_ID_ACTIVE: 2715 if (!(pf->hw_features & I40E_HW_PHY_CONTROLS_LEDS)) { 2716 pf->led_status = i40e_led_get(hw); 2717 } else { 2718 if (!(hw->flags & I40E_HW_FLAG_AQ_PHY_ACCESS_CAPABLE)) 2719 i40e_aq_set_phy_debug(hw, I40E_PHY_DEBUG_ALL, 2720 NULL); 2721 ret = i40e_led_get_phy(hw, &temp_status, 2722 &pf->phy_led_val); 2723 pf->led_status = temp_status; 2724 } 2725 return blink_freq; 2726 case ETHTOOL_ID_ON: 2727 if (!(pf->hw_features & I40E_HW_PHY_CONTROLS_LEDS)) 2728 i40e_led_set(hw, 0xf, false); 2729 else 2730 ret = i40e_led_set_phy(hw, true, pf->led_status, 0); 2731 break; 2732 case ETHTOOL_ID_OFF: 2733 if (!(pf->hw_features & I40E_HW_PHY_CONTROLS_LEDS)) 2734 i40e_led_set(hw, 0x0, false); 2735 else 2736 ret = i40e_led_set_phy(hw, false, pf->led_status, 0); 2737 break; 2738 case ETHTOOL_ID_INACTIVE: 2739 if (!(pf->hw_features & I40E_HW_PHY_CONTROLS_LEDS)) { 2740 i40e_led_set(hw, pf->led_status, false); 2741 } else { 2742 ret = i40e_led_set_phy(hw, false, pf->led_status, 2743 (pf->phy_led_val | 2744 I40E_PHY_LED_MODE_ORIG)); 2745 if (!(hw->flags & I40E_HW_FLAG_AQ_PHY_ACCESS_CAPABLE)) 2746 i40e_aq_set_phy_debug(hw, 0, NULL); 2747 } 2748 break; 2749 default: 2750 break; 2751 } 2752 if (ret) 2753 return -ENOENT; 2754 else 2755 return 0; 2756 } 2757 2758 /* NOTE: i40e hardware uses a conversion factor of 2 for Interrupt 2759 * Throttle Rate (ITR) ie. ITR(1) = 2us ITR(10) = 20 us, and also 2760 * 125us (8000 interrupts per second) == ITR(62) 2761 */ 2762 2763 /** 2764 * __i40e_get_coalesce - get per-queue coalesce settings 2765 * @netdev: the netdev to check 2766 * @ec: ethtool coalesce data structure 2767 * @queue: which queue to pick 2768 * 2769 * Gets the per-queue settings for coalescence. Specifically Rx and Tx usecs 2770 * are per queue. If queue is <0 then we default to queue 0 as the 2771 * representative value. 2772 **/ 2773 static int __i40e_get_coalesce(struct net_device *netdev, 2774 struct ethtool_coalesce *ec, 2775 int queue) 2776 { 2777 struct i40e_netdev_priv *np = netdev_priv(netdev); 2778 struct i40e_ring *rx_ring, *tx_ring; 2779 struct i40e_vsi *vsi = np->vsi; 2780 2781 ec->tx_max_coalesced_frames_irq = vsi->work_limit; 2782 ec->rx_max_coalesced_frames_irq = vsi->work_limit; 2783 2784 /* rx and tx usecs has per queue value. If user doesn't specify the 2785 * queue, return queue 0's value to represent. 2786 */ 2787 if (queue < 0) 2788 queue = 0; 2789 else if (queue >= vsi->num_queue_pairs) 2790 return -EINVAL; 2791 2792 rx_ring = vsi->rx_rings[queue]; 2793 tx_ring = vsi->tx_rings[queue]; 2794 2795 if (ITR_IS_DYNAMIC(rx_ring->itr_setting)) 2796 ec->use_adaptive_rx_coalesce = 1; 2797 2798 if (ITR_IS_DYNAMIC(tx_ring->itr_setting)) 2799 ec->use_adaptive_tx_coalesce = 1; 2800 2801 ec->rx_coalesce_usecs = rx_ring->itr_setting & ~I40E_ITR_DYNAMIC; 2802 ec->tx_coalesce_usecs = tx_ring->itr_setting & ~I40E_ITR_DYNAMIC; 2803 2804 /* we use the _usecs_high to store/set the interrupt rate limit 2805 * that the hardware supports, that almost but not quite 2806 * fits the original intent of the ethtool variable, 2807 * the rx_coalesce_usecs_high limits total interrupts 2808 * per second from both tx/rx sources. 2809 */ 2810 ec->rx_coalesce_usecs_high = vsi->int_rate_limit; 2811 ec->tx_coalesce_usecs_high = vsi->int_rate_limit; 2812 2813 return 0; 2814 } 2815 2816 /** 2817 * i40e_get_coalesce - get a netdev's coalesce settings 2818 * @netdev: the netdev to check 2819 * @ec: ethtool coalesce data structure 2820 * @kernel_coal: ethtool CQE mode setting structure 2821 * @extack: extack for reporting error messages 2822 * 2823 * Gets the coalesce settings for a particular netdev. Note that if user has 2824 * modified per-queue settings, this only guarantees to represent queue 0. See 2825 * __i40e_get_coalesce for more details. 2826 **/ 2827 static int i40e_get_coalesce(struct net_device *netdev, 2828 struct ethtool_coalesce *ec, 2829 struct kernel_ethtool_coalesce *kernel_coal, 2830 struct netlink_ext_ack *extack) 2831 { 2832 return __i40e_get_coalesce(netdev, ec, -1); 2833 } 2834 2835 /** 2836 * i40e_get_per_queue_coalesce - gets coalesce settings for particular queue 2837 * @netdev: netdev structure 2838 * @ec: ethtool's coalesce settings 2839 * @queue: the particular queue to read 2840 * 2841 * Will read a specific queue's coalesce settings 2842 **/ 2843 static int i40e_get_per_queue_coalesce(struct net_device *netdev, u32 queue, 2844 struct ethtool_coalesce *ec) 2845 { 2846 return __i40e_get_coalesce(netdev, ec, queue); 2847 } 2848 2849 /** 2850 * i40e_set_itr_per_queue - set ITR values for specific queue 2851 * @vsi: the VSI to set values for 2852 * @ec: coalesce settings from ethtool 2853 * @queue: the queue to modify 2854 * 2855 * Change the ITR settings for a specific queue. 2856 **/ 2857 static void i40e_set_itr_per_queue(struct i40e_vsi *vsi, 2858 struct ethtool_coalesce *ec, 2859 int queue) 2860 { 2861 struct i40e_ring *rx_ring = vsi->rx_rings[queue]; 2862 struct i40e_ring *tx_ring = vsi->tx_rings[queue]; 2863 struct i40e_pf *pf = vsi->back; 2864 struct i40e_hw *hw = &pf->hw; 2865 struct i40e_q_vector *q_vector; 2866 u16 intrl; 2867 2868 intrl = i40e_intrl_usec_to_reg(vsi->int_rate_limit); 2869 2870 rx_ring->itr_setting = ITR_REG_ALIGN(ec->rx_coalesce_usecs); 2871 tx_ring->itr_setting = ITR_REG_ALIGN(ec->tx_coalesce_usecs); 2872 2873 if (ec->use_adaptive_rx_coalesce) 2874 rx_ring->itr_setting |= I40E_ITR_DYNAMIC; 2875 else 2876 rx_ring->itr_setting &= ~I40E_ITR_DYNAMIC; 2877 2878 if (ec->use_adaptive_tx_coalesce) 2879 tx_ring->itr_setting |= I40E_ITR_DYNAMIC; 2880 else 2881 tx_ring->itr_setting &= ~I40E_ITR_DYNAMIC; 2882 2883 q_vector = rx_ring->q_vector; 2884 q_vector->rx.target_itr = ITR_TO_REG(rx_ring->itr_setting); 2885 2886 q_vector = tx_ring->q_vector; 2887 q_vector->tx.target_itr = ITR_TO_REG(tx_ring->itr_setting); 2888 2889 /* The interrupt handler itself will take care of programming 2890 * the Tx and Rx ITR values based on the values we have entered 2891 * into the q_vector, no need to write the values now. 2892 */ 2893 2894 wr32(hw, I40E_PFINT_RATEN(q_vector->reg_idx), intrl); 2895 i40e_flush(hw); 2896 } 2897 2898 /** 2899 * __i40e_set_coalesce - set coalesce settings for particular queue 2900 * @netdev: the netdev to change 2901 * @ec: ethtool coalesce settings 2902 * @queue: the queue to change 2903 * 2904 * Sets the coalesce settings for a particular queue. 2905 **/ 2906 static int __i40e_set_coalesce(struct net_device *netdev, 2907 struct ethtool_coalesce *ec, 2908 int queue) 2909 { 2910 struct i40e_netdev_priv *np = netdev_priv(netdev); 2911 u16 intrl_reg, cur_rx_itr, cur_tx_itr; 2912 struct i40e_vsi *vsi = np->vsi; 2913 struct i40e_pf *pf = vsi->back; 2914 int i; 2915 2916 if (ec->tx_max_coalesced_frames_irq || ec->rx_max_coalesced_frames_irq) 2917 vsi->work_limit = ec->tx_max_coalesced_frames_irq; 2918 2919 if (queue < 0) { 2920 cur_rx_itr = vsi->rx_rings[0]->itr_setting; 2921 cur_tx_itr = vsi->tx_rings[0]->itr_setting; 2922 } else if (queue < vsi->num_queue_pairs) { 2923 cur_rx_itr = vsi->rx_rings[queue]->itr_setting; 2924 cur_tx_itr = vsi->tx_rings[queue]->itr_setting; 2925 } else { 2926 netif_info(pf, drv, netdev, "Invalid queue value, queue range is 0 - %d\n", 2927 vsi->num_queue_pairs - 1); 2928 return -EINVAL; 2929 } 2930 2931 cur_tx_itr &= ~I40E_ITR_DYNAMIC; 2932 cur_rx_itr &= ~I40E_ITR_DYNAMIC; 2933 2934 /* tx_coalesce_usecs_high is ignored, use rx-usecs-high instead */ 2935 if (ec->tx_coalesce_usecs_high != vsi->int_rate_limit) { 2936 netif_info(pf, drv, netdev, "tx-usecs-high is not used, please program rx-usecs-high\n"); 2937 return -EINVAL; 2938 } 2939 2940 if (ec->rx_coalesce_usecs_high > INTRL_REG_TO_USEC(I40E_MAX_INTRL)) { 2941 netif_info(pf, drv, netdev, "Invalid value, rx-usecs-high range is 0-%lu\n", 2942 INTRL_REG_TO_USEC(I40E_MAX_INTRL)); 2943 return -EINVAL; 2944 } 2945 2946 if (ec->rx_coalesce_usecs != cur_rx_itr && 2947 ec->use_adaptive_rx_coalesce) { 2948 netif_info(pf, drv, netdev, "RX interrupt moderation cannot be changed if adaptive-rx is enabled.\n"); 2949 return -EINVAL; 2950 } 2951 2952 if (ec->rx_coalesce_usecs > I40E_MAX_ITR) { 2953 netif_info(pf, drv, netdev, "Invalid value, rx-usecs range is 0-8160\n"); 2954 return -EINVAL; 2955 } 2956 2957 if (ec->tx_coalesce_usecs != cur_tx_itr && 2958 ec->use_adaptive_tx_coalesce) { 2959 netif_info(pf, drv, netdev, "TX interrupt moderation cannot be changed if adaptive-tx is enabled.\n"); 2960 return -EINVAL; 2961 } 2962 2963 if (ec->tx_coalesce_usecs > I40E_MAX_ITR) { 2964 netif_info(pf, drv, netdev, "Invalid value, tx-usecs range is 0-8160\n"); 2965 return -EINVAL; 2966 } 2967 2968 if (ec->use_adaptive_rx_coalesce && !cur_rx_itr) 2969 ec->rx_coalesce_usecs = I40E_MIN_ITR; 2970 2971 if (ec->use_adaptive_tx_coalesce && !cur_tx_itr) 2972 ec->tx_coalesce_usecs = I40E_MIN_ITR; 2973 2974 intrl_reg = i40e_intrl_usec_to_reg(ec->rx_coalesce_usecs_high); 2975 vsi->int_rate_limit = INTRL_REG_TO_USEC(intrl_reg); 2976 if (vsi->int_rate_limit != ec->rx_coalesce_usecs_high) { 2977 netif_info(pf, drv, netdev, "Interrupt rate limit rounded down to %d\n", 2978 vsi->int_rate_limit); 2979 } 2980 2981 /* rx and tx usecs has per queue value. If user doesn't specify the 2982 * queue, apply to all queues. 2983 */ 2984 if (queue < 0) { 2985 for (i = 0; i < vsi->num_queue_pairs; i++) 2986 i40e_set_itr_per_queue(vsi, ec, i); 2987 } else { 2988 i40e_set_itr_per_queue(vsi, ec, queue); 2989 } 2990 2991 return 0; 2992 } 2993 2994 /** 2995 * i40e_set_coalesce - set coalesce settings for every queue on the netdev 2996 * @netdev: the netdev to change 2997 * @ec: ethtool coalesce settings 2998 * @kernel_coal: ethtool CQE mode setting structure 2999 * @extack: extack for reporting error messages 3000 * 3001 * This will set each queue to the same coalesce settings. 3002 **/ 3003 static int i40e_set_coalesce(struct net_device *netdev, 3004 struct ethtool_coalesce *ec, 3005 struct kernel_ethtool_coalesce *kernel_coal, 3006 struct netlink_ext_ack *extack) 3007 { 3008 return __i40e_set_coalesce(netdev, ec, -1); 3009 } 3010 3011 /** 3012 * i40e_set_per_queue_coalesce - set specific queue's coalesce settings 3013 * @netdev: the netdev to change 3014 * @ec: ethtool's coalesce settings 3015 * @queue: the queue to change 3016 * 3017 * Sets the specified queue's coalesce settings. 3018 **/ 3019 static int i40e_set_per_queue_coalesce(struct net_device *netdev, u32 queue, 3020 struct ethtool_coalesce *ec) 3021 { 3022 return __i40e_set_coalesce(netdev, ec, queue); 3023 } 3024 3025 /** 3026 * i40e_get_rss_hash_opts - Get RSS hash Input Set for each flow type 3027 * @pf: pointer to the physical function struct 3028 * @cmd: ethtool rxnfc command 3029 * 3030 * Returns Success if the flow is supported, else Invalid Input. 3031 **/ 3032 static int i40e_get_rss_hash_opts(struct i40e_pf *pf, struct ethtool_rxnfc *cmd) 3033 { 3034 struct i40e_hw *hw = &pf->hw; 3035 u8 flow_pctype = 0; 3036 u64 i_set = 0; 3037 3038 cmd->data = 0; 3039 3040 switch (cmd->flow_type) { 3041 case TCP_V4_FLOW: 3042 flow_pctype = I40E_FILTER_PCTYPE_NONF_IPV4_TCP; 3043 break; 3044 case UDP_V4_FLOW: 3045 flow_pctype = I40E_FILTER_PCTYPE_NONF_IPV4_UDP; 3046 break; 3047 case TCP_V6_FLOW: 3048 flow_pctype = I40E_FILTER_PCTYPE_NONF_IPV6_TCP; 3049 break; 3050 case UDP_V6_FLOW: 3051 flow_pctype = I40E_FILTER_PCTYPE_NONF_IPV6_UDP; 3052 break; 3053 case SCTP_V4_FLOW: 3054 case AH_ESP_V4_FLOW: 3055 case AH_V4_FLOW: 3056 case ESP_V4_FLOW: 3057 case IPV4_FLOW: 3058 case SCTP_V6_FLOW: 3059 case AH_ESP_V6_FLOW: 3060 case AH_V6_FLOW: 3061 case ESP_V6_FLOW: 3062 case IPV6_FLOW: 3063 /* Default is src/dest for IP, no matter the L4 hashing */ 3064 cmd->data |= RXH_IP_SRC | RXH_IP_DST; 3065 break; 3066 default: 3067 return -EINVAL; 3068 } 3069 3070 /* Read flow based hash input set register */ 3071 if (flow_pctype) { 3072 i_set = (u64)i40e_read_rx_ctl(hw, I40E_GLQF_HASH_INSET(0, 3073 flow_pctype)) | 3074 ((u64)i40e_read_rx_ctl(hw, I40E_GLQF_HASH_INSET(1, 3075 flow_pctype)) << 32); 3076 } 3077 3078 /* Process bits of hash input set */ 3079 if (i_set) { 3080 if (i_set & I40E_L4_SRC_MASK) 3081 cmd->data |= RXH_L4_B_0_1; 3082 if (i_set & I40E_L4_DST_MASK) 3083 cmd->data |= RXH_L4_B_2_3; 3084 3085 if (cmd->flow_type == TCP_V4_FLOW || 3086 cmd->flow_type == UDP_V4_FLOW) { 3087 if (i_set & I40E_L3_SRC_MASK) 3088 cmd->data |= RXH_IP_SRC; 3089 if (i_set & I40E_L3_DST_MASK) 3090 cmd->data |= RXH_IP_DST; 3091 } else if (cmd->flow_type == TCP_V6_FLOW || 3092 cmd->flow_type == UDP_V6_FLOW) { 3093 if (i_set & I40E_L3_V6_SRC_MASK) 3094 cmd->data |= RXH_IP_SRC; 3095 if (i_set & I40E_L3_V6_DST_MASK) 3096 cmd->data |= RXH_IP_DST; 3097 } 3098 } 3099 3100 return 0; 3101 } 3102 3103 /** 3104 * i40e_check_mask - Check whether a mask field is set 3105 * @mask: the full mask value 3106 * @field: mask of the field to check 3107 * 3108 * If the given mask is fully set, return positive value. If the mask for the 3109 * field is fully unset, return zero. Otherwise return a negative error code. 3110 **/ 3111 static int i40e_check_mask(u64 mask, u64 field) 3112 { 3113 u64 value = mask & field; 3114 3115 if (value == field) 3116 return 1; 3117 else if (!value) 3118 return 0; 3119 else 3120 return -1; 3121 } 3122 3123 /** 3124 * i40e_parse_rx_flow_user_data - Deconstruct user-defined data 3125 * @fsp: pointer to rx flow specification 3126 * @data: pointer to userdef data structure for storage 3127 * 3128 * Read the user-defined data and deconstruct the value into a structure. No 3129 * other code should read the user-defined data, so as to ensure that every 3130 * place consistently reads the value correctly. 3131 * 3132 * The user-defined field is a 64bit Big Endian format value, which we 3133 * deconstruct by reading bits or bit fields from it. Single bit flags shall 3134 * be defined starting from the highest bits, while small bit field values 3135 * shall be defined starting from the lowest bits. 3136 * 3137 * Returns 0 if the data is valid, and non-zero if the userdef data is invalid 3138 * and the filter should be rejected. The data structure will always be 3139 * modified even if FLOW_EXT is not set. 3140 * 3141 **/ 3142 static int i40e_parse_rx_flow_user_data(struct ethtool_rx_flow_spec *fsp, 3143 struct i40e_rx_flow_userdef *data) 3144 { 3145 u64 value, mask; 3146 int valid; 3147 3148 /* Zero memory first so it's always consistent. */ 3149 memset(data, 0, sizeof(*data)); 3150 3151 if (!(fsp->flow_type & FLOW_EXT)) 3152 return 0; 3153 3154 value = be64_to_cpu(*((__be64 *)fsp->h_ext.data)); 3155 mask = be64_to_cpu(*((__be64 *)fsp->m_ext.data)); 3156 3157 #define I40E_USERDEF_FLEX_WORD GENMASK_ULL(15, 0) 3158 #define I40E_USERDEF_FLEX_OFFSET GENMASK_ULL(31, 16) 3159 #define I40E_USERDEF_FLEX_FILTER GENMASK_ULL(31, 0) 3160 3161 valid = i40e_check_mask(mask, I40E_USERDEF_FLEX_FILTER); 3162 if (valid < 0) { 3163 return -EINVAL; 3164 } else if (valid) { 3165 data->flex_word = value & I40E_USERDEF_FLEX_WORD; 3166 data->flex_offset = 3167 (value & I40E_USERDEF_FLEX_OFFSET) >> 16; 3168 data->flex_filter = true; 3169 } 3170 3171 return 0; 3172 } 3173 3174 /** 3175 * i40e_fill_rx_flow_user_data - Fill in user-defined data field 3176 * @fsp: pointer to rx_flow specification 3177 * @data: pointer to return userdef data 3178 * 3179 * Reads the userdef data structure and properly fills in the user defined 3180 * fields of the rx_flow_spec. 3181 **/ 3182 static void i40e_fill_rx_flow_user_data(struct ethtool_rx_flow_spec *fsp, 3183 struct i40e_rx_flow_userdef *data) 3184 { 3185 u64 value = 0, mask = 0; 3186 3187 if (data->flex_filter) { 3188 value |= data->flex_word; 3189 value |= (u64)data->flex_offset << 16; 3190 mask |= I40E_USERDEF_FLEX_FILTER; 3191 } 3192 3193 if (value || mask) 3194 fsp->flow_type |= FLOW_EXT; 3195 3196 *((__be64 *)fsp->h_ext.data) = cpu_to_be64(value); 3197 *((__be64 *)fsp->m_ext.data) = cpu_to_be64(mask); 3198 } 3199 3200 /** 3201 * i40e_get_ethtool_fdir_all - Populates the rule count of a command 3202 * @pf: Pointer to the physical function struct 3203 * @cmd: The command to get or set Rx flow classification rules 3204 * @rule_locs: Array of used rule locations 3205 * 3206 * This function populates both the total and actual rule count of 3207 * the ethtool flow classification command 3208 * 3209 * Returns 0 on success or -EMSGSIZE if entry not found 3210 **/ 3211 static int i40e_get_ethtool_fdir_all(struct i40e_pf *pf, 3212 struct ethtool_rxnfc *cmd, 3213 u32 *rule_locs) 3214 { 3215 struct i40e_fdir_filter *rule; 3216 struct hlist_node *node2; 3217 int cnt = 0; 3218 3219 /* report total rule count */ 3220 cmd->data = i40e_get_fd_cnt_all(pf); 3221 3222 hlist_for_each_entry_safe(rule, node2, 3223 &pf->fdir_filter_list, fdir_node) { 3224 if (cnt == cmd->rule_cnt) 3225 return -EMSGSIZE; 3226 3227 rule_locs[cnt] = rule->fd_id; 3228 cnt++; 3229 } 3230 3231 cmd->rule_cnt = cnt; 3232 3233 return 0; 3234 } 3235 3236 /** 3237 * i40e_get_ethtool_fdir_entry - Look up a filter based on Rx flow 3238 * @pf: Pointer to the physical function struct 3239 * @cmd: The command to get or set Rx flow classification rules 3240 * 3241 * This function looks up a filter based on the Rx flow classification 3242 * command and fills the flow spec info for it if found 3243 * 3244 * Returns 0 on success or -EINVAL if filter not found 3245 **/ 3246 static int i40e_get_ethtool_fdir_entry(struct i40e_pf *pf, 3247 struct ethtool_rxnfc *cmd) 3248 { 3249 struct ethtool_rx_flow_spec *fsp = 3250 (struct ethtool_rx_flow_spec *)&cmd->fs; 3251 struct i40e_rx_flow_userdef userdef = {0}; 3252 struct i40e_fdir_filter *rule = NULL; 3253 struct hlist_node *node2; 3254 u64 input_set; 3255 u16 index; 3256 3257 hlist_for_each_entry_safe(rule, node2, 3258 &pf->fdir_filter_list, fdir_node) { 3259 if (fsp->location <= rule->fd_id) 3260 break; 3261 } 3262 3263 if (!rule || fsp->location != rule->fd_id) 3264 return -EINVAL; 3265 3266 fsp->flow_type = rule->flow_type; 3267 if (fsp->flow_type == IP_USER_FLOW) { 3268 fsp->h_u.usr_ip4_spec.ip_ver = ETH_RX_NFC_IP4; 3269 fsp->h_u.usr_ip4_spec.proto = 0; 3270 fsp->m_u.usr_ip4_spec.proto = 0; 3271 } 3272 3273 if (fsp->flow_type == IPV6_USER_FLOW || 3274 fsp->flow_type == UDP_V6_FLOW || 3275 fsp->flow_type == TCP_V6_FLOW || 3276 fsp->flow_type == SCTP_V6_FLOW) { 3277 /* Reverse the src and dest notion, since the HW views them 3278 * from Tx perspective where as the user expects it from 3279 * Rx filter view. 3280 */ 3281 fsp->h_u.tcp_ip6_spec.psrc = rule->dst_port; 3282 fsp->h_u.tcp_ip6_spec.pdst = rule->src_port; 3283 memcpy(fsp->h_u.tcp_ip6_spec.ip6dst, rule->src_ip6, 3284 sizeof(__be32) * 4); 3285 memcpy(fsp->h_u.tcp_ip6_spec.ip6src, rule->dst_ip6, 3286 sizeof(__be32) * 4); 3287 } else { 3288 /* Reverse the src and dest notion, since the HW views them 3289 * from Tx perspective where as the user expects it from 3290 * Rx filter view. 3291 */ 3292 fsp->h_u.tcp_ip4_spec.psrc = rule->dst_port; 3293 fsp->h_u.tcp_ip4_spec.pdst = rule->src_port; 3294 fsp->h_u.tcp_ip4_spec.ip4src = rule->dst_ip; 3295 fsp->h_u.tcp_ip4_spec.ip4dst = rule->src_ip; 3296 } 3297 3298 switch (rule->flow_type) { 3299 case SCTP_V4_FLOW: 3300 index = I40E_FILTER_PCTYPE_NONF_IPV4_SCTP; 3301 break; 3302 case TCP_V4_FLOW: 3303 index = I40E_FILTER_PCTYPE_NONF_IPV4_TCP; 3304 break; 3305 case UDP_V4_FLOW: 3306 index = I40E_FILTER_PCTYPE_NONF_IPV4_UDP; 3307 break; 3308 case SCTP_V6_FLOW: 3309 index = I40E_FILTER_PCTYPE_NONF_IPV6_SCTP; 3310 break; 3311 case TCP_V6_FLOW: 3312 index = I40E_FILTER_PCTYPE_NONF_IPV6_TCP; 3313 break; 3314 case UDP_V6_FLOW: 3315 index = I40E_FILTER_PCTYPE_NONF_IPV6_UDP; 3316 break; 3317 case IP_USER_FLOW: 3318 index = I40E_FILTER_PCTYPE_NONF_IPV4_OTHER; 3319 break; 3320 case IPV6_USER_FLOW: 3321 index = I40E_FILTER_PCTYPE_NONF_IPV6_OTHER; 3322 break; 3323 default: 3324 /* If we have stored a filter with a flow type not listed here 3325 * it is almost certainly a driver bug. WARN(), and then 3326 * assign the input_set as if all fields are enabled to avoid 3327 * reading unassigned memory. 3328 */ 3329 WARN(1, "Missing input set index for flow_type %d\n", 3330 rule->flow_type); 3331 input_set = 0xFFFFFFFFFFFFFFFFULL; 3332 goto no_input_set; 3333 } 3334 3335 input_set = i40e_read_fd_input_set(pf, index); 3336 3337 no_input_set: 3338 if (input_set & I40E_L3_V6_SRC_MASK) { 3339 fsp->m_u.tcp_ip6_spec.ip6src[0] = htonl(0xFFFFFFFF); 3340 fsp->m_u.tcp_ip6_spec.ip6src[1] = htonl(0xFFFFFFFF); 3341 fsp->m_u.tcp_ip6_spec.ip6src[2] = htonl(0xFFFFFFFF); 3342 fsp->m_u.tcp_ip6_spec.ip6src[3] = htonl(0xFFFFFFFF); 3343 } 3344 3345 if (input_set & I40E_L3_V6_DST_MASK) { 3346 fsp->m_u.tcp_ip6_spec.ip6dst[0] = htonl(0xFFFFFFFF); 3347 fsp->m_u.tcp_ip6_spec.ip6dst[1] = htonl(0xFFFFFFFF); 3348 fsp->m_u.tcp_ip6_spec.ip6dst[2] = htonl(0xFFFFFFFF); 3349 fsp->m_u.tcp_ip6_spec.ip6dst[3] = htonl(0xFFFFFFFF); 3350 } 3351 3352 if (input_set & I40E_L3_SRC_MASK) 3353 fsp->m_u.tcp_ip4_spec.ip4src = htonl(0xFFFFFFFF); 3354 3355 if (input_set & I40E_L3_DST_MASK) 3356 fsp->m_u.tcp_ip4_spec.ip4dst = htonl(0xFFFFFFFF); 3357 3358 if (input_set & I40E_L4_SRC_MASK) 3359 fsp->m_u.tcp_ip4_spec.psrc = htons(0xFFFF); 3360 3361 if (input_set & I40E_L4_DST_MASK) 3362 fsp->m_u.tcp_ip4_spec.pdst = htons(0xFFFF); 3363 3364 if (rule->dest_ctl == I40E_FILTER_PROGRAM_DESC_DEST_DROP_PACKET) 3365 fsp->ring_cookie = RX_CLS_FLOW_DISC; 3366 else 3367 fsp->ring_cookie = rule->q_index; 3368 3369 if (rule->vlan_tag) { 3370 fsp->h_ext.vlan_etype = rule->vlan_etype; 3371 fsp->m_ext.vlan_etype = htons(0xFFFF); 3372 fsp->h_ext.vlan_tci = rule->vlan_tag; 3373 fsp->m_ext.vlan_tci = htons(0xFFFF); 3374 fsp->flow_type |= FLOW_EXT; 3375 } 3376 3377 if (rule->dest_vsi != pf->vsi[pf->lan_vsi]->id) { 3378 struct i40e_vsi *vsi; 3379 3380 vsi = i40e_find_vsi_from_id(pf, rule->dest_vsi); 3381 if (vsi && vsi->type == I40E_VSI_SRIOV) { 3382 /* VFs are zero-indexed by the driver, but ethtool 3383 * expects them to be one-indexed, so add one here 3384 */ 3385 u64 ring_vf = vsi->vf_id + 1; 3386 3387 ring_vf <<= ETHTOOL_RX_FLOW_SPEC_RING_VF_OFF; 3388 fsp->ring_cookie |= ring_vf; 3389 } 3390 } 3391 3392 if (rule->flex_filter) { 3393 userdef.flex_filter = true; 3394 userdef.flex_word = be16_to_cpu(rule->flex_word); 3395 userdef.flex_offset = rule->flex_offset; 3396 } 3397 3398 i40e_fill_rx_flow_user_data(fsp, &userdef); 3399 3400 return 0; 3401 } 3402 3403 /** 3404 * i40e_get_rxnfc - command to get RX flow classification rules 3405 * @netdev: network interface device structure 3406 * @cmd: ethtool rxnfc command 3407 * @rule_locs: pointer to store rule data 3408 * 3409 * Returns Success if the command is supported. 3410 **/ 3411 static int i40e_get_rxnfc(struct net_device *netdev, struct ethtool_rxnfc *cmd, 3412 u32 *rule_locs) 3413 { 3414 struct i40e_netdev_priv *np = netdev_priv(netdev); 3415 struct i40e_vsi *vsi = np->vsi; 3416 struct i40e_pf *pf = vsi->back; 3417 int ret = -EOPNOTSUPP; 3418 3419 switch (cmd->cmd) { 3420 case ETHTOOL_GRXRINGS: 3421 cmd->data = vsi->rss_size; 3422 ret = 0; 3423 break; 3424 case ETHTOOL_GRXFH: 3425 ret = i40e_get_rss_hash_opts(pf, cmd); 3426 break; 3427 case ETHTOOL_GRXCLSRLCNT: 3428 cmd->rule_cnt = pf->fdir_pf_active_filters; 3429 /* report total rule count */ 3430 cmd->data = i40e_get_fd_cnt_all(pf); 3431 ret = 0; 3432 break; 3433 case ETHTOOL_GRXCLSRULE: 3434 ret = i40e_get_ethtool_fdir_entry(pf, cmd); 3435 break; 3436 case ETHTOOL_GRXCLSRLALL: 3437 ret = i40e_get_ethtool_fdir_all(pf, cmd, rule_locs); 3438 break; 3439 default: 3440 break; 3441 } 3442 3443 return ret; 3444 } 3445 3446 /** 3447 * i40e_get_rss_hash_bits - Read RSS Hash bits from register 3448 * @nfc: pointer to user request 3449 * @i_setc: bits currently set 3450 * 3451 * Returns value of bits to be set per user request 3452 **/ 3453 static u64 i40e_get_rss_hash_bits(struct ethtool_rxnfc *nfc, u64 i_setc) 3454 { 3455 u64 i_set = i_setc; 3456 u64 src_l3 = 0, dst_l3 = 0; 3457 3458 if (nfc->data & RXH_L4_B_0_1) 3459 i_set |= I40E_L4_SRC_MASK; 3460 else 3461 i_set &= ~I40E_L4_SRC_MASK; 3462 if (nfc->data & RXH_L4_B_2_3) 3463 i_set |= I40E_L4_DST_MASK; 3464 else 3465 i_set &= ~I40E_L4_DST_MASK; 3466 3467 if (nfc->flow_type == TCP_V6_FLOW || nfc->flow_type == UDP_V6_FLOW) { 3468 src_l3 = I40E_L3_V6_SRC_MASK; 3469 dst_l3 = I40E_L3_V6_DST_MASK; 3470 } else if (nfc->flow_type == TCP_V4_FLOW || 3471 nfc->flow_type == UDP_V4_FLOW) { 3472 src_l3 = I40E_L3_SRC_MASK; 3473 dst_l3 = I40E_L3_DST_MASK; 3474 } else { 3475 /* Any other flow type are not supported here */ 3476 return i_set; 3477 } 3478 3479 if (nfc->data & RXH_IP_SRC) 3480 i_set |= src_l3; 3481 else 3482 i_set &= ~src_l3; 3483 if (nfc->data & RXH_IP_DST) 3484 i_set |= dst_l3; 3485 else 3486 i_set &= ~dst_l3; 3487 3488 return i_set; 3489 } 3490 3491 /** 3492 * i40e_set_rss_hash_opt - Enable/Disable flow types for RSS hash 3493 * @pf: pointer to the physical function struct 3494 * @nfc: ethtool rxnfc command 3495 * 3496 * Returns Success if the flow input set is supported. 3497 **/ 3498 static int i40e_set_rss_hash_opt(struct i40e_pf *pf, struct ethtool_rxnfc *nfc) 3499 { 3500 struct i40e_hw *hw = &pf->hw; 3501 u64 hena = (u64)i40e_read_rx_ctl(hw, I40E_PFQF_HENA(0)) | 3502 ((u64)i40e_read_rx_ctl(hw, I40E_PFQF_HENA(1)) << 32); 3503 u8 flow_pctype = 0; 3504 u64 i_set, i_setc; 3505 3506 if (pf->flags & I40E_FLAG_MFP_ENABLED) { 3507 dev_err(&pf->pdev->dev, 3508 "Change of RSS hash input set is not supported when MFP mode is enabled\n"); 3509 return -EOPNOTSUPP; 3510 } 3511 3512 /* RSS does not support anything other than hashing 3513 * to queues on src and dst IPs and ports 3514 */ 3515 if (nfc->data & ~(RXH_IP_SRC | RXH_IP_DST | 3516 RXH_L4_B_0_1 | RXH_L4_B_2_3)) 3517 return -EINVAL; 3518 3519 switch (nfc->flow_type) { 3520 case TCP_V4_FLOW: 3521 flow_pctype = I40E_FILTER_PCTYPE_NONF_IPV4_TCP; 3522 if (pf->hw_features & I40E_HW_MULTIPLE_TCP_UDP_RSS_PCTYPE) 3523 hena |= 3524 BIT_ULL(I40E_FILTER_PCTYPE_NONF_IPV4_TCP_SYN_NO_ACK); 3525 break; 3526 case TCP_V6_FLOW: 3527 flow_pctype = I40E_FILTER_PCTYPE_NONF_IPV6_TCP; 3528 if (pf->hw_features & I40E_HW_MULTIPLE_TCP_UDP_RSS_PCTYPE) 3529 hena |= 3530 BIT_ULL(I40E_FILTER_PCTYPE_NONF_IPV4_TCP_SYN_NO_ACK); 3531 if (pf->hw_features & I40E_HW_MULTIPLE_TCP_UDP_RSS_PCTYPE) 3532 hena |= 3533 BIT_ULL(I40E_FILTER_PCTYPE_NONF_IPV6_TCP_SYN_NO_ACK); 3534 break; 3535 case UDP_V4_FLOW: 3536 flow_pctype = I40E_FILTER_PCTYPE_NONF_IPV4_UDP; 3537 if (pf->hw_features & I40E_HW_MULTIPLE_TCP_UDP_RSS_PCTYPE) 3538 hena |= 3539 BIT_ULL(I40E_FILTER_PCTYPE_NONF_UNICAST_IPV4_UDP) | 3540 BIT_ULL(I40E_FILTER_PCTYPE_NONF_MULTICAST_IPV4_UDP); 3541 3542 hena |= BIT_ULL(I40E_FILTER_PCTYPE_FRAG_IPV4); 3543 break; 3544 case UDP_V6_FLOW: 3545 flow_pctype = I40E_FILTER_PCTYPE_NONF_IPV6_UDP; 3546 if (pf->hw_features & I40E_HW_MULTIPLE_TCP_UDP_RSS_PCTYPE) 3547 hena |= 3548 BIT_ULL(I40E_FILTER_PCTYPE_NONF_UNICAST_IPV6_UDP) | 3549 BIT_ULL(I40E_FILTER_PCTYPE_NONF_MULTICAST_IPV6_UDP); 3550 3551 hena |= BIT_ULL(I40E_FILTER_PCTYPE_FRAG_IPV6); 3552 break; 3553 case AH_ESP_V4_FLOW: 3554 case AH_V4_FLOW: 3555 case ESP_V4_FLOW: 3556 case SCTP_V4_FLOW: 3557 if ((nfc->data & RXH_L4_B_0_1) || 3558 (nfc->data & RXH_L4_B_2_3)) 3559 return -EINVAL; 3560 hena |= BIT_ULL(I40E_FILTER_PCTYPE_NONF_IPV4_OTHER); 3561 break; 3562 case AH_ESP_V6_FLOW: 3563 case AH_V6_FLOW: 3564 case ESP_V6_FLOW: 3565 case SCTP_V6_FLOW: 3566 if ((nfc->data & RXH_L4_B_0_1) || 3567 (nfc->data & RXH_L4_B_2_3)) 3568 return -EINVAL; 3569 hena |= BIT_ULL(I40E_FILTER_PCTYPE_NONF_IPV6_OTHER); 3570 break; 3571 case IPV4_FLOW: 3572 hena |= BIT_ULL(I40E_FILTER_PCTYPE_NONF_IPV4_OTHER) | 3573 BIT_ULL(I40E_FILTER_PCTYPE_FRAG_IPV4); 3574 break; 3575 case IPV6_FLOW: 3576 hena |= BIT_ULL(I40E_FILTER_PCTYPE_NONF_IPV6_OTHER) | 3577 BIT_ULL(I40E_FILTER_PCTYPE_FRAG_IPV6); 3578 break; 3579 default: 3580 return -EINVAL; 3581 } 3582 3583 if (flow_pctype) { 3584 i_setc = (u64)i40e_read_rx_ctl(hw, I40E_GLQF_HASH_INSET(0, 3585 flow_pctype)) | 3586 ((u64)i40e_read_rx_ctl(hw, I40E_GLQF_HASH_INSET(1, 3587 flow_pctype)) << 32); 3588 i_set = i40e_get_rss_hash_bits(nfc, i_setc); 3589 i40e_write_rx_ctl(hw, I40E_GLQF_HASH_INSET(0, flow_pctype), 3590 (u32)i_set); 3591 i40e_write_rx_ctl(hw, I40E_GLQF_HASH_INSET(1, flow_pctype), 3592 (u32)(i_set >> 32)); 3593 hena |= BIT_ULL(flow_pctype); 3594 } 3595 3596 i40e_write_rx_ctl(hw, I40E_PFQF_HENA(0), (u32)hena); 3597 i40e_write_rx_ctl(hw, I40E_PFQF_HENA(1), (u32)(hena >> 32)); 3598 i40e_flush(hw); 3599 3600 return 0; 3601 } 3602 3603 /** 3604 * i40e_update_ethtool_fdir_entry - Updates the fdir filter entry 3605 * @vsi: Pointer to the targeted VSI 3606 * @input: The filter to update or NULL to indicate deletion 3607 * @sw_idx: Software index to the filter 3608 * @cmd: The command to get or set Rx flow classification rules 3609 * 3610 * This function updates (or deletes) a Flow Director entry from 3611 * the hlist of the corresponding PF 3612 * 3613 * Returns 0 on success 3614 **/ 3615 static int i40e_update_ethtool_fdir_entry(struct i40e_vsi *vsi, 3616 struct i40e_fdir_filter *input, 3617 u16 sw_idx, 3618 struct ethtool_rxnfc *cmd) 3619 { 3620 struct i40e_fdir_filter *rule, *parent; 3621 struct i40e_pf *pf = vsi->back; 3622 struct hlist_node *node2; 3623 int err = -EINVAL; 3624 3625 parent = NULL; 3626 rule = NULL; 3627 3628 hlist_for_each_entry_safe(rule, node2, 3629 &pf->fdir_filter_list, fdir_node) { 3630 /* hash found, or no matching entry */ 3631 if (rule->fd_id >= sw_idx) 3632 break; 3633 parent = rule; 3634 } 3635 3636 /* if there is an old rule occupying our place remove it */ 3637 if (rule && (rule->fd_id == sw_idx)) { 3638 /* Remove this rule, since we're either deleting it, or 3639 * replacing it. 3640 */ 3641 err = i40e_add_del_fdir(vsi, rule, false); 3642 hlist_del(&rule->fdir_node); 3643 kfree(rule); 3644 pf->fdir_pf_active_filters--; 3645 } 3646 3647 /* If we weren't given an input, this is a delete, so just return the 3648 * error code indicating if there was an entry at the requested slot 3649 */ 3650 if (!input) 3651 return err; 3652 3653 /* Otherwise, install the new rule as requested */ 3654 INIT_HLIST_NODE(&input->fdir_node); 3655 3656 /* add filter to the list */ 3657 if (parent) 3658 hlist_add_behind(&input->fdir_node, &parent->fdir_node); 3659 else 3660 hlist_add_head(&input->fdir_node, 3661 &pf->fdir_filter_list); 3662 3663 /* update counts */ 3664 pf->fdir_pf_active_filters++; 3665 3666 return 0; 3667 } 3668 3669 /** 3670 * i40e_prune_flex_pit_list - Cleanup unused entries in FLX_PIT table 3671 * @pf: pointer to PF structure 3672 * 3673 * This function searches the list of filters and determines which FLX_PIT 3674 * entries are still required. It will prune any entries which are no longer 3675 * in use after the deletion. 3676 **/ 3677 static void i40e_prune_flex_pit_list(struct i40e_pf *pf) 3678 { 3679 struct i40e_flex_pit *entry, *tmp; 3680 struct i40e_fdir_filter *rule; 3681 3682 /* First, we'll check the l3 table */ 3683 list_for_each_entry_safe(entry, tmp, &pf->l3_flex_pit_list, list) { 3684 bool found = false; 3685 3686 hlist_for_each_entry(rule, &pf->fdir_filter_list, fdir_node) { 3687 if (rule->flow_type != IP_USER_FLOW) 3688 continue; 3689 if (rule->flex_filter && 3690 rule->flex_offset == entry->src_offset) { 3691 found = true; 3692 break; 3693 } 3694 } 3695 3696 /* If we didn't find the filter, then we can prune this entry 3697 * from the list. 3698 */ 3699 if (!found) { 3700 list_del(&entry->list); 3701 kfree(entry); 3702 } 3703 } 3704 3705 /* Followed by the L4 table */ 3706 list_for_each_entry_safe(entry, tmp, &pf->l4_flex_pit_list, list) { 3707 bool found = false; 3708 3709 hlist_for_each_entry(rule, &pf->fdir_filter_list, fdir_node) { 3710 /* Skip this filter if it's L3, since we already 3711 * checked those in the above loop 3712 */ 3713 if (rule->flow_type == IP_USER_FLOW) 3714 continue; 3715 if (rule->flex_filter && 3716 rule->flex_offset == entry->src_offset) { 3717 found = true; 3718 break; 3719 } 3720 } 3721 3722 /* If we didn't find the filter, then we can prune this entry 3723 * from the list. 3724 */ 3725 if (!found) { 3726 list_del(&entry->list); 3727 kfree(entry); 3728 } 3729 } 3730 } 3731 3732 /** 3733 * i40e_del_fdir_entry - Deletes a Flow Director filter entry 3734 * @vsi: Pointer to the targeted VSI 3735 * @cmd: The command to get or set Rx flow classification rules 3736 * 3737 * The function removes a Flow Director filter entry from the 3738 * hlist of the corresponding PF 3739 * 3740 * Returns 0 on success 3741 */ 3742 static int i40e_del_fdir_entry(struct i40e_vsi *vsi, 3743 struct ethtool_rxnfc *cmd) 3744 { 3745 struct ethtool_rx_flow_spec *fsp = 3746 (struct ethtool_rx_flow_spec *)&cmd->fs; 3747 struct i40e_pf *pf = vsi->back; 3748 int ret = 0; 3749 3750 if (test_bit(__I40E_RESET_RECOVERY_PENDING, pf->state) || 3751 test_bit(__I40E_RESET_INTR_RECEIVED, pf->state)) 3752 return -EBUSY; 3753 3754 if (test_bit(__I40E_FD_FLUSH_REQUESTED, pf->state)) 3755 return -EBUSY; 3756 3757 ret = i40e_update_ethtool_fdir_entry(vsi, NULL, fsp->location, cmd); 3758 3759 i40e_prune_flex_pit_list(pf); 3760 3761 i40e_fdir_check_and_reenable(pf); 3762 return ret; 3763 } 3764 3765 /** 3766 * i40e_unused_pit_index - Find an unused PIT index for given list 3767 * @pf: the PF data structure 3768 * 3769 * Find the first unused flexible PIT index entry. We search both the L3 and 3770 * L4 flexible PIT lists so that the returned index is unique and unused by 3771 * either currently programmed L3 or L4 filters. We use a bit field as storage 3772 * to track which indexes are already used. 3773 **/ 3774 static u8 i40e_unused_pit_index(struct i40e_pf *pf) 3775 { 3776 unsigned long available_index = 0xFF; 3777 struct i40e_flex_pit *entry; 3778 3779 /* We need to make sure that the new index isn't in use by either L3 3780 * or L4 filters so that IP_USER_FLOW filters can program both L3 and 3781 * L4 to use the same index. 3782 */ 3783 3784 list_for_each_entry(entry, &pf->l4_flex_pit_list, list) 3785 clear_bit(entry->pit_index, &available_index); 3786 3787 list_for_each_entry(entry, &pf->l3_flex_pit_list, list) 3788 clear_bit(entry->pit_index, &available_index); 3789 3790 return find_first_bit(&available_index, 8); 3791 } 3792 3793 /** 3794 * i40e_find_flex_offset - Find an existing flex src_offset 3795 * @flex_pit_list: L3 or L4 flex PIT list 3796 * @src_offset: new src_offset to find 3797 * 3798 * Searches the flex_pit_list for an existing offset. If no offset is 3799 * currently programmed, then this will return an ERR_PTR if there is no space 3800 * to add a new offset, otherwise it returns NULL. 3801 **/ 3802 static 3803 struct i40e_flex_pit *i40e_find_flex_offset(struct list_head *flex_pit_list, 3804 u16 src_offset) 3805 { 3806 struct i40e_flex_pit *entry; 3807 int size = 0; 3808 3809 /* Search for the src_offset first. If we find a matching entry 3810 * already programmed, we can simply re-use it. 3811 */ 3812 list_for_each_entry(entry, flex_pit_list, list) { 3813 size++; 3814 if (entry->src_offset == src_offset) 3815 return entry; 3816 } 3817 3818 /* If we haven't found an entry yet, then the provided src offset has 3819 * not yet been programmed. We will program the src offset later on, 3820 * but we need to indicate whether there is enough space to do so 3821 * here. We'll make use of ERR_PTR for this purpose. 3822 */ 3823 if (size >= I40E_FLEX_PIT_TABLE_SIZE) 3824 return ERR_PTR(-ENOSPC); 3825 3826 return NULL; 3827 } 3828 3829 /** 3830 * i40e_add_flex_offset - Add src_offset to flex PIT table list 3831 * @flex_pit_list: L3 or L4 flex PIT list 3832 * @src_offset: new src_offset to add 3833 * @pit_index: the PIT index to program 3834 * 3835 * This function programs the new src_offset to the list. It is expected that 3836 * i40e_find_flex_offset has already been tried and returned NULL, indicating 3837 * that this offset is not programmed, and that the list has enough space to 3838 * store another offset. 3839 * 3840 * Returns 0 on success, and negative value on error. 3841 **/ 3842 static int i40e_add_flex_offset(struct list_head *flex_pit_list, 3843 u16 src_offset, 3844 u8 pit_index) 3845 { 3846 struct i40e_flex_pit *new_pit, *entry; 3847 3848 new_pit = kzalloc(sizeof(*entry), GFP_KERNEL); 3849 if (!new_pit) 3850 return -ENOMEM; 3851 3852 new_pit->src_offset = src_offset; 3853 new_pit->pit_index = pit_index; 3854 3855 /* We need to insert this item such that the list is sorted by 3856 * src_offset in ascending order. 3857 */ 3858 list_for_each_entry(entry, flex_pit_list, list) { 3859 if (new_pit->src_offset < entry->src_offset) { 3860 list_add_tail(&new_pit->list, &entry->list); 3861 return 0; 3862 } 3863 3864 /* If we found an entry with our offset already programmed we 3865 * can simply return here, after freeing the memory. However, 3866 * if the pit_index does not match we need to report an error. 3867 */ 3868 if (new_pit->src_offset == entry->src_offset) { 3869 int err = 0; 3870 3871 /* If the PIT index is not the same we can't re-use 3872 * the entry, so we must report an error. 3873 */ 3874 if (new_pit->pit_index != entry->pit_index) 3875 err = -EINVAL; 3876 3877 kfree(new_pit); 3878 return err; 3879 } 3880 } 3881 3882 /* If we reached here, then we haven't yet added the item. This means 3883 * that we should add the item at the end of the list. 3884 */ 3885 list_add_tail(&new_pit->list, flex_pit_list); 3886 return 0; 3887 } 3888 3889 /** 3890 * __i40e_reprogram_flex_pit - Re-program specific FLX_PIT table 3891 * @pf: Pointer to the PF structure 3892 * @flex_pit_list: list of flexible src offsets in use 3893 * @flex_pit_start: index to first entry for this section of the table 3894 * 3895 * In order to handle flexible data, the hardware uses a table of values 3896 * called the FLX_PIT table. This table is used to indicate which sections of 3897 * the input correspond to what PIT index values. Unfortunately, hardware is 3898 * very restrictive about programming this table. Entries must be ordered by 3899 * src_offset in ascending order, without duplicates. Additionally, unused 3900 * entries must be set to the unused index value, and must have valid size and 3901 * length according to the src_offset ordering. 3902 * 3903 * This function will reprogram the FLX_PIT register from a book-keeping 3904 * structure that we guarantee is already ordered correctly, and has no more 3905 * than 3 entries. 3906 * 3907 * To make things easier, we only support flexible values of one word length, 3908 * rather than allowing variable length flexible values. 3909 **/ 3910 static void __i40e_reprogram_flex_pit(struct i40e_pf *pf, 3911 struct list_head *flex_pit_list, 3912 int flex_pit_start) 3913 { 3914 struct i40e_flex_pit *entry = NULL; 3915 u16 last_offset = 0; 3916 int i = 0, j = 0; 3917 3918 /* First, loop over the list of flex PIT entries, and reprogram the 3919 * registers. 3920 */ 3921 list_for_each_entry(entry, flex_pit_list, list) { 3922 /* We have to be careful when programming values for the 3923 * largest SRC_OFFSET value. It is possible that adding 3924 * additional empty values at the end would overflow the space 3925 * for the SRC_OFFSET in the FLX_PIT register. To avoid this, 3926 * we check here and add the empty values prior to adding the 3927 * largest value. 3928 * 3929 * To determine this, we will use a loop from i+1 to 3, which 3930 * will determine whether the unused entries would have valid 3931 * SRC_OFFSET. Note that there cannot be extra entries past 3932 * this value, because the only valid values would have been 3933 * larger than I40E_MAX_FLEX_SRC_OFFSET, and thus would not 3934 * have been added to the list in the first place. 3935 */ 3936 for (j = i + 1; j < 3; j++) { 3937 u16 offset = entry->src_offset + j; 3938 int index = flex_pit_start + i; 3939 u32 value = I40E_FLEX_PREP_VAL(I40E_FLEX_DEST_UNUSED, 3940 1, 3941 offset - 3); 3942 3943 if (offset > I40E_MAX_FLEX_SRC_OFFSET) { 3944 i40e_write_rx_ctl(&pf->hw, 3945 I40E_PRTQF_FLX_PIT(index), 3946 value); 3947 i++; 3948 } 3949 } 3950 3951 /* Now, we can program the actual value into the table */ 3952 i40e_write_rx_ctl(&pf->hw, 3953 I40E_PRTQF_FLX_PIT(flex_pit_start + i), 3954 I40E_FLEX_PREP_VAL(entry->pit_index + 50, 3955 1, 3956 entry->src_offset)); 3957 i++; 3958 } 3959 3960 /* In order to program the last entries in the table, we need to 3961 * determine the valid offset. If the list is empty, we'll just start 3962 * with 0. Otherwise, we'll start with the last item offset and add 1. 3963 * This ensures that all entries have valid sizes. If we don't do this 3964 * correctly, the hardware will disable flexible field parsing. 3965 */ 3966 if (!list_empty(flex_pit_list)) 3967 last_offset = list_prev_entry(entry, list)->src_offset + 1; 3968 3969 for (; i < 3; i++, last_offset++) { 3970 i40e_write_rx_ctl(&pf->hw, 3971 I40E_PRTQF_FLX_PIT(flex_pit_start + i), 3972 I40E_FLEX_PREP_VAL(I40E_FLEX_DEST_UNUSED, 3973 1, 3974 last_offset)); 3975 } 3976 } 3977 3978 /** 3979 * i40e_reprogram_flex_pit - Reprogram all FLX_PIT tables after input set change 3980 * @pf: pointer to the PF structure 3981 * 3982 * This function reprograms both the L3 and L4 FLX_PIT tables. See the 3983 * internal helper function for implementation details. 3984 **/ 3985 static void i40e_reprogram_flex_pit(struct i40e_pf *pf) 3986 { 3987 __i40e_reprogram_flex_pit(pf, &pf->l3_flex_pit_list, 3988 I40E_FLEX_PIT_IDX_START_L3); 3989 3990 __i40e_reprogram_flex_pit(pf, &pf->l4_flex_pit_list, 3991 I40E_FLEX_PIT_IDX_START_L4); 3992 3993 /* We also need to program the L3 and L4 GLQF ORT register */ 3994 i40e_write_rx_ctl(&pf->hw, 3995 I40E_GLQF_ORT(I40E_L3_GLQF_ORT_IDX), 3996 I40E_ORT_PREP_VAL(I40E_FLEX_PIT_IDX_START_L3, 3997 3, 1)); 3998 3999 i40e_write_rx_ctl(&pf->hw, 4000 I40E_GLQF_ORT(I40E_L4_GLQF_ORT_IDX), 4001 I40E_ORT_PREP_VAL(I40E_FLEX_PIT_IDX_START_L4, 4002 3, 1)); 4003 } 4004 4005 /** 4006 * i40e_flow_str - Converts a flow_type into a human readable string 4007 * @fsp: the flow specification 4008 * 4009 * Currently only flow types we support are included here, and the string 4010 * value attempts to match what ethtool would use to configure this flow type. 4011 **/ 4012 static const char *i40e_flow_str(struct ethtool_rx_flow_spec *fsp) 4013 { 4014 switch (fsp->flow_type & ~FLOW_EXT) { 4015 case TCP_V4_FLOW: 4016 return "tcp4"; 4017 case UDP_V4_FLOW: 4018 return "udp4"; 4019 case SCTP_V4_FLOW: 4020 return "sctp4"; 4021 case IP_USER_FLOW: 4022 return "ip4"; 4023 case TCP_V6_FLOW: 4024 return "tcp6"; 4025 case UDP_V6_FLOW: 4026 return "udp6"; 4027 case SCTP_V6_FLOW: 4028 return "sctp6"; 4029 case IPV6_USER_FLOW: 4030 return "ip6"; 4031 default: 4032 return "unknown"; 4033 } 4034 } 4035 4036 /** 4037 * i40e_pit_index_to_mask - Return the FLEX mask for a given PIT index 4038 * @pit_index: PIT index to convert 4039 * 4040 * Returns the mask for a given PIT index. Will return 0 if the pit_index is 4041 * of range. 4042 **/ 4043 static u64 i40e_pit_index_to_mask(int pit_index) 4044 { 4045 switch (pit_index) { 4046 case 0: 4047 return I40E_FLEX_50_MASK; 4048 case 1: 4049 return I40E_FLEX_51_MASK; 4050 case 2: 4051 return I40E_FLEX_52_MASK; 4052 case 3: 4053 return I40E_FLEX_53_MASK; 4054 case 4: 4055 return I40E_FLEX_54_MASK; 4056 case 5: 4057 return I40E_FLEX_55_MASK; 4058 case 6: 4059 return I40E_FLEX_56_MASK; 4060 case 7: 4061 return I40E_FLEX_57_MASK; 4062 default: 4063 return 0; 4064 } 4065 } 4066 4067 /** 4068 * i40e_print_input_set - Show changes between two input sets 4069 * @vsi: the vsi being configured 4070 * @old: the old input set 4071 * @new: the new input set 4072 * 4073 * Print the difference between old and new input sets by showing which series 4074 * of words are toggled on or off. Only displays the bits we actually support 4075 * changing. 4076 **/ 4077 static void i40e_print_input_set(struct i40e_vsi *vsi, u64 old, u64 new) 4078 { 4079 struct i40e_pf *pf = vsi->back; 4080 bool old_value, new_value; 4081 int i; 4082 4083 old_value = !!(old & I40E_L3_SRC_MASK); 4084 new_value = !!(new & I40E_L3_SRC_MASK); 4085 if (old_value != new_value) 4086 netif_info(pf, drv, vsi->netdev, "L3 source address: %s -> %s\n", 4087 old_value ? "ON" : "OFF", 4088 new_value ? "ON" : "OFF"); 4089 4090 old_value = !!(old & I40E_L3_DST_MASK); 4091 new_value = !!(new & I40E_L3_DST_MASK); 4092 if (old_value != new_value) 4093 netif_info(pf, drv, vsi->netdev, "L3 destination address: %s -> %s\n", 4094 old_value ? "ON" : "OFF", 4095 new_value ? "ON" : "OFF"); 4096 4097 old_value = !!(old & I40E_L4_SRC_MASK); 4098 new_value = !!(new & I40E_L4_SRC_MASK); 4099 if (old_value != new_value) 4100 netif_info(pf, drv, vsi->netdev, "L4 source port: %s -> %s\n", 4101 old_value ? "ON" : "OFF", 4102 new_value ? "ON" : "OFF"); 4103 4104 old_value = !!(old & I40E_L4_DST_MASK); 4105 new_value = !!(new & I40E_L4_DST_MASK); 4106 if (old_value != new_value) 4107 netif_info(pf, drv, vsi->netdev, "L4 destination port: %s -> %s\n", 4108 old_value ? "ON" : "OFF", 4109 new_value ? "ON" : "OFF"); 4110 4111 old_value = !!(old & I40E_VERIFY_TAG_MASK); 4112 new_value = !!(new & I40E_VERIFY_TAG_MASK); 4113 if (old_value != new_value) 4114 netif_info(pf, drv, vsi->netdev, "SCTP verification tag: %s -> %s\n", 4115 old_value ? "ON" : "OFF", 4116 new_value ? "ON" : "OFF"); 4117 4118 /* Show change of flexible filter entries */ 4119 for (i = 0; i < I40E_FLEX_INDEX_ENTRIES; i++) { 4120 u64 flex_mask = i40e_pit_index_to_mask(i); 4121 4122 old_value = !!(old & flex_mask); 4123 new_value = !!(new & flex_mask); 4124 if (old_value != new_value) 4125 netif_info(pf, drv, vsi->netdev, "FLEX index %d: %s -> %s\n", 4126 i, 4127 old_value ? "ON" : "OFF", 4128 new_value ? "ON" : "OFF"); 4129 } 4130 4131 netif_info(pf, drv, vsi->netdev, " Current input set: %0llx\n", 4132 old); 4133 netif_info(pf, drv, vsi->netdev, "Requested input set: %0llx\n", 4134 new); 4135 } 4136 4137 /** 4138 * i40e_check_fdir_input_set - Check that a given rx_flow_spec mask is valid 4139 * @vsi: pointer to the targeted VSI 4140 * @fsp: pointer to Rx flow specification 4141 * @userdef: userdefined data from flow specification 4142 * 4143 * Ensures that a given ethtool_rx_flow_spec has a valid mask. Some support 4144 * for partial matches exists with a few limitations. First, hardware only 4145 * supports masking by word boundary (2 bytes) and not per individual bit. 4146 * Second, hardware is limited to using one mask for a flow type and cannot 4147 * use a separate mask for each filter. 4148 * 4149 * To support these limitations, if we already have a configured filter for 4150 * the specified type, this function enforces that new filters of the type 4151 * match the configured input set. Otherwise, if we do not have a filter of 4152 * the specified type, we allow the input set to be updated to match the 4153 * desired filter. 4154 * 4155 * To help ensure that administrators understand why filters weren't displayed 4156 * as supported, we print a diagnostic message displaying how the input set 4157 * would change and warning to delete the preexisting filters if required. 4158 * 4159 * Returns 0 on successful input set match, and a negative return code on 4160 * failure. 4161 **/ 4162 static int i40e_check_fdir_input_set(struct i40e_vsi *vsi, 4163 struct ethtool_rx_flow_spec *fsp, 4164 struct i40e_rx_flow_userdef *userdef) 4165 { 4166 static const __be32 ipv6_full_mask[4] = {cpu_to_be32(0xffffffff), 4167 cpu_to_be32(0xffffffff), cpu_to_be32(0xffffffff), 4168 cpu_to_be32(0xffffffff)}; 4169 struct ethtool_tcpip6_spec *tcp_ip6_spec; 4170 struct ethtool_usrip6_spec *usr_ip6_spec; 4171 struct ethtool_tcpip4_spec *tcp_ip4_spec; 4172 struct ethtool_usrip4_spec *usr_ip4_spec; 4173 struct i40e_pf *pf = vsi->back; 4174 u64 current_mask, new_mask; 4175 bool new_flex_offset = false; 4176 bool flex_l3 = false; 4177 u16 *fdir_filter_count; 4178 u16 index, src_offset = 0; 4179 u8 pit_index = 0; 4180 int err; 4181 4182 switch (fsp->flow_type & ~FLOW_EXT) { 4183 case SCTP_V4_FLOW: 4184 index = I40E_FILTER_PCTYPE_NONF_IPV4_SCTP; 4185 fdir_filter_count = &pf->fd_sctp4_filter_cnt; 4186 break; 4187 case TCP_V4_FLOW: 4188 index = I40E_FILTER_PCTYPE_NONF_IPV4_TCP; 4189 fdir_filter_count = &pf->fd_tcp4_filter_cnt; 4190 break; 4191 case UDP_V4_FLOW: 4192 index = I40E_FILTER_PCTYPE_NONF_IPV4_UDP; 4193 fdir_filter_count = &pf->fd_udp4_filter_cnt; 4194 break; 4195 case SCTP_V6_FLOW: 4196 index = I40E_FILTER_PCTYPE_NONF_IPV6_SCTP; 4197 fdir_filter_count = &pf->fd_sctp6_filter_cnt; 4198 break; 4199 case TCP_V6_FLOW: 4200 index = I40E_FILTER_PCTYPE_NONF_IPV6_TCP; 4201 fdir_filter_count = &pf->fd_tcp6_filter_cnt; 4202 break; 4203 case UDP_V6_FLOW: 4204 index = I40E_FILTER_PCTYPE_NONF_IPV6_UDP; 4205 fdir_filter_count = &pf->fd_udp6_filter_cnt; 4206 break; 4207 case IP_USER_FLOW: 4208 index = I40E_FILTER_PCTYPE_NONF_IPV4_OTHER; 4209 fdir_filter_count = &pf->fd_ip4_filter_cnt; 4210 flex_l3 = true; 4211 break; 4212 case IPV6_USER_FLOW: 4213 index = I40E_FILTER_PCTYPE_NONF_IPV6_OTHER; 4214 fdir_filter_count = &pf->fd_ip6_filter_cnt; 4215 flex_l3 = true; 4216 break; 4217 default: 4218 return -EOPNOTSUPP; 4219 } 4220 4221 /* Read the current input set from register memory. */ 4222 current_mask = i40e_read_fd_input_set(pf, index); 4223 new_mask = current_mask; 4224 4225 /* Determine, if any, the required changes to the input set in order 4226 * to support the provided mask. 4227 * 4228 * Hardware only supports masking at word (2 byte) granularity and does 4229 * not support full bitwise masking. This implementation simplifies 4230 * even further and only supports fully enabled or fully disabled 4231 * masks for each field, even though we could split the ip4src and 4232 * ip4dst fields. 4233 */ 4234 switch (fsp->flow_type & ~FLOW_EXT) { 4235 case SCTP_V4_FLOW: 4236 new_mask &= ~I40E_VERIFY_TAG_MASK; 4237 fallthrough; 4238 case TCP_V4_FLOW: 4239 case UDP_V4_FLOW: 4240 tcp_ip4_spec = &fsp->m_u.tcp_ip4_spec; 4241 4242 /* IPv4 source address */ 4243 if (tcp_ip4_spec->ip4src == htonl(0xFFFFFFFF)) 4244 new_mask |= I40E_L3_SRC_MASK; 4245 else if (!tcp_ip4_spec->ip4src) 4246 new_mask &= ~I40E_L3_SRC_MASK; 4247 else 4248 return -EOPNOTSUPP; 4249 4250 /* IPv4 destination address */ 4251 if (tcp_ip4_spec->ip4dst == htonl(0xFFFFFFFF)) 4252 new_mask |= I40E_L3_DST_MASK; 4253 else if (!tcp_ip4_spec->ip4dst) 4254 new_mask &= ~I40E_L3_DST_MASK; 4255 else 4256 return -EOPNOTSUPP; 4257 4258 /* L4 source port */ 4259 if (tcp_ip4_spec->psrc == htons(0xFFFF)) 4260 new_mask |= I40E_L4_SRC_MASK; 4261 else if (!tcp_ip4_spec->psrc) 4262 new_mask &= ~I40E_L4_SRC_MASK; 4263 else 4264 return -EOPNOTSUPP; 4265 4266 /* L4 destination port */ 4267 if (tcp_ip4_spec->pdst == htons(0xFFFF)) 4268 new_mask |= I40E_L4_DST_MASK; 4269 else if (!tcp_ip4_spec->pdst) 4270 new_mask &= ~I40E_L4_DST_MASK; 4271 else 4272 return -EOPNOTSUPP; 4273 4274 /* Filtering on Type of Service is not supported. */ 4275 if (tcp_ip4_spec->tos) 4276 return -EOPNOTSUPP; 4277 4278 break; 4279 case SCTP_V6_FLOW: 4280 new_mask &= ~I40E_VERIFY_TAG_MASK; 4281 fallthrough; 4282 case TCP_V6_FLOW: 4283 case UDP_V6_FLOW: 4284 tcp_ip6_spec = &fsp->m_u.tcp_ip6_spec; 4285 4286 /* Check if user provided IPv6 source address. */ 4287 if (ipv6_addr_equal((struct in6_addr *)&tcp_ip6_spec->ip6src, 4288 (struct in6_addr *)&ipv6_full_mask)) 4289 new_mask |= I40E_L3_V6_SRC_MASK; 4290 else if (ipv6_addr_any((struct in6_addr *) 4291 &tcp_ip6_spec->ip6src)) 4292 new_mask &= ~I40E_L3_V6_SRC_MASK; 4293 else 4294 return -EOPNOTSUPP; 4295 4296 /* Check if user provided destination address. */ 4297 if (ipv6_addr_equal((struct in6_addr *)&tcp_ip6_spec->ip6dst, 4298 (struct in6_addr *)&ipv6_full_mask)) 4299 new_mask |= I40E_L3_V6_DST_MASK; 4300 else if (ipv6_addr_any((struct in6_addr *) 4301 &tcp_ip6_spec->ip6dst)) 4302 new_mask &= ~I40E_L3_V6_DST_MASK; 4303 else 4304 return -EOPNOTSUPP; 4305 4306 /* L4 source port */ 4307 if (tcp_ip6_spec->psrc == htons(0xFFFF)) 4308 new_mask |= I40E_L4_SRC_MASK; 4309 else if (!tcp_ip6_spec->psrc) 4310 new_mask &= ~I40E_L4_SRC_MASK; 4311 else 4312 return -EOPNOTSUPP; 4313 4314 /* L4 destination port */ 4315 if (tcp_ip6_spec->pdst == htons(0xFFFF)) 4316 new_mask |= I40E_L4_DST_MASK; 4317 else if (!tcp_ip6_spec->pdst) 4318 new_mask &= ~I40E_L4_DST_MASK; 4319 else 4320 return -EOPNOTSUPP; 4321 4322 /* Filtering on Traffic Classes is not supported. */ 4323 if (tcp_ip6_spec->tclass) 4324 return -EOPNOTSUPP; 4325 break; 4326 case IP_USER_FLOW: 4327 usr_ip4_spec = &fsp->m_u.usr_ip4_spec; 4328 4329 /* IPv4 source address */ 4330 if (usr_ip4_spec->ip4src == htonl(0xFFFFFFFF)) 4331 new_mask |= I40E_L3_SRC_MASK; 4332 else if (!usr_ip4_spec->ip4src) 4333 new_mask &= ~I40E_L3_SRC_MASK; 4334 else 4335 return -EOPNOTSUPP; 4336 4337 /* IPv4 destination address */ 4338 if (usr_ip4_spec->ip4dst == htonl(0xFFFFFFFF)) 4339 new_mask |= I40E_L3_DST_MASK; 4340 else if (!usr_ip4_spec->ip4dst) 4341 new_mask &= ~I40E_L3_DST_MASK; 4342 else 4343 return -EOPNOTSUPP; 4344 4345 /* First 4 bytes of L4 header */ 4346 if (usr_ip4_spec->l4_4_bytes == htonl(0xFFFFFFFF)) 4347 new_mask |= I40E_L4_SRC_MASK | I40E_L4_DST_MASK; 4348 else if (!usr_ip4_spec->l4_4_bytes) 4349 new_mask &= ~(I40E_L4_SRC_MASK | I40E_L4_DST_MASK); 4350 else 4351 return -EOPNOTSUPP; 4352 4353 /* Filtering on Type of Service is not supported. */ 4354 if (usr_ip4_spec->tos) 4355 return -EOPNOTSUPP; 4356 4357 /* Filtering on IP version is not supported */ 4358 if (usr_ip4_spec->ip_ver) 4359 return -EINVAL; 4360 4361 /* Filtering on L4 protocol is not supported */ 4362 if (usr_ip4_spec->proto) 4363 return -EINVAL; 4364 4365 break; 4366 case IPV6_USER_FLOW: 4367 usr_ip6_spec = &fsp->m_u.usr_ip6_spec; 4368 4369 /* Check if user provided IPv6 source address. */ 4370 if (ipv6_addr_equal((struct in6_addr *)&usr_ip6_spec->ip6src, 4371 (struct in6_addr *)&ipv6_full_mask)) 4372 new_mask |= I40E_L3_V6_SRC_MASK; 4373 else if (ipv6_addr_any((struct in6_addr *) 4374 &usr_ip6_spec->ip6src)) 4375 new_mask &= ~I40E_L3_V6_SRC_MASK; 4376 else 4377 return -EOPNOTSUPP; 4378 4379 /* Check if user provided destination address. */ 4380 if (ipv6_addr_equal((struct in6_addr *)&usr_ip6_spec->ip6dst, 4381 (struct in6_addr *)&ipv6_full_mask)) 4382 new_mask |= I40E_L3_V6_DST_MASK; 4383 else if (ipv6_addr_any((struct in6_addr *) 4384 &usr_ip6_spec->ip6src)) 4385 new_mask &= ~I40E_L3_V6_DST_MASK; 4386 else 4387 return -EOPNOTSUPP; 4388 4389 if (usr_ip6_spec->l4_4_bytes == htonl(0xFFFFFFFF)) 4390 new_mask |= I40E_L4_SRC_MASK | I40E_L4_DST_MASK; 4391 else if (!usr_ip6_spec->l4_4_bytes) 4392 new_mask &= ~(I40E_L4_SRC_MASK | I40E_L4_DST_MASK); 4393 else 4394 return -EOPNOTSUPP; 4395 4396 /* Filtering on Traffic class is not supported. */ 4397 if (usr_ip6_spec->tclass) 4398 return -EOPNOTSUPP; 4399 4400 /* Filtering on L4 protocol is not supported */ 4401 if (usr_ip6_spec->l4_proto) 4402 return -EINVAL; 4403 4404 break; 4405 default: 4406 return -EOPNOTSUPP; 4407 } 4408 4409 if (fsp->flow_type & FLOW_EXT) { 4410 /* Allow only 802.1Q and no etype defined, as 4411 * later it's modified to 0x8100 4412 */ 4413 if (fsp->h_ext.vlan_etype != htons(ETH_P_8021Q) && 4414 fsp->h_ext.vlan_etype != 0) 4415 return -EOPNOTSUPP; 4416 if (fsp->m_ext.vlan_tci == htons(0xFFFF)) 4417 new_mask |= I40E_VLAN_SRC_MASK; 4418 else 4419 new_mask &= ~I40E_VLAN_SRC_MASK; 4420 } 4421 4422 /* First, clear all flexible filter entries */ 4423 new_mask &= ~I40E_FLEX_INPUT_MASK; 4424 4425 /* If we have a flexible filter, try to add this offset to the correct 4426 * flexible filter PIT list. Once finished, we can update the mask. 4427 * If the src_offset changed, we will get a new mask value which will 4428 * trigger an input set change. 4429 */ 4430 if (userdef->flex_filter) { 4431 struct i40e_flex_pit *l3_flex_pit = NULL, *flex_pit = NULL; 4432 4433 /* Flexible offset must be even, since the flexible payload 4434 * must be aligned on 2-byte boundary. 4435 */ 4436 if (userdef->flex_offset & 0x1) { 4437 dev_warn(&pf->pdev->dev, 4438 "Flexible data offset must be 2-byte aligned\n"); 4439 return -EINVAL; 4440 } 4441 4442 src_offset = userdef->flex_offset >> 1; 4443 4444 /* FLX_PIT source offset value is only so large */ 4445 if (src_offset > I40E_MAX_FLEX_SRC_OFFSET) { 4446 dev_warn(&pf->pdev->dev, 4447 "Flexible data must reside within first 64 bytes of the packet payload\n"); 4448 return -EINVAL; 4449 } 4450 4451 /* See if this offset has already been programmed. If we get 4452 * an ERR_PTR, then the filter is not safe to add. Otherwise, 4453 * if we get a NULL pointer, this means we will need to add 4454 * the offset. 4455 */ 4456 flex_pit = i40e_find_flex_offset(&pf->l4_flex_pit_list, 4457 src_offset); 4458 if (IS_ERR(flex_pit)) 4459 return PTR_ERR(flex_pit); 4460 4461 /* IP_USER_FLOW filters match both L4 (ICMP) and L3 (unknown) 4462 * packet types, and thus we need to program both L3 and L4 4463 * flexible values. These must have identical flexible index, 4464 * as otherwise we can't correctly program the input set. So 4465 * we'll find both an L3 and L4 index and make sure they are 4466 * the same. 4467 */ 4468 if (flex_l3) { 4469 l3_flex_pit = 4470 i40e_find_flex_offset(&pf->l3_flex_pit_list, 4471 src_offset); 4472 if (IS_ERR(l3_flex_pit)) 4473 return PTR_ERR(l3_flex_pit); 4474 4475 if (flex_pit) { 4476 /* If we already had a matching L4 entry, we 4477 * need to make sure that the L3 entry we 4478 * obtained uses the same index. 4479 */ 4480 if (l3_flex_pit) { 4481 if (l3_flex_pit->pit_index != 4482 flex_pit->pit_index) { 4483 return -EINVAL; 4484 } 4485 } else { 4486 new_flex_offset = true; 4487 } 4488 } else { 4489 flex_pit = l3_flex_pit; 4490 } 4491 } 4492 4493 /* If we didn't find an existing flex offset, we need to 4494 * program a new one. However, we don't immediately program it 4495 * here because we will wait to program until after we check 4496 * that it is safe to change the input set. 4497 */ 4498 if (!flex_pit) { 4499 new_flex_offset = true; 4500 pit_index = i40e_unused_pit_index(pf); 4501 } else { 4502 pit_index = flex_pit->pit_index; 4503 } 4504 4505 /* Update the mask with the new offset */ 4506 new_mask |= i40e_pit_index_to_mask(pit_index); 4507 } 4508 4509 /* If the mask and flexible filter offsets for this filter match the 4510 * currently programmed values we don't need any input set change, so 4511 * this filter is safe to install. 4512 */ 4513 if (new_mask == current_mask && !new_flex_offset) 4514 return 0; 4515 4516 netif_info(pf, drv, vsi->netdev, "Input set change requested for %s flows:\n", 4517 i40e_flow_str(fsp)); 4518 i40e_print_input_set(vsi, current_mask, new_mask); 4519 if (new_flex_offset) { 4520 netif_info(pf, drv, vsi->netdev, "FLEX index %d: Offset -> %d", 4521 pit_index, src_offset); 4522 } 4523 4524 /* Hardware input sets are global across multiple ports, so even the 4525 * main port cannot change them when in MFP mode as this would impact 4526 * any filters on the other ports. 4527 */ 4528 if (pf->flags & I40E_FLAG_MFP_ENABLED) { 4529 netif_err(pf, drv, vsi->netdev, "Cannot change Flow Director input sets while MFP is enabled\n"); 4530 return -EOPNOTSUPP; 4531 } 4532 4533 /* This filter requires us to update the input set. However, hardware 4534 * only supports one input set per flow type, and does not support 4535 * separate masks for each filter. This means that we can only support 4536 * a single mask for all filters of a specific type. 4537 * 4538 * If we have preexisting filters, they obviously depend on the 4539 * current programmed input set. Display a diagnostic message in this 4540 * case explaining why the filter could not be accepted. 4541 */ 4542 if (*fdir_filter_count) { 4543 netif_err(pf, drv, vsi->netdev, "Cannot change input set for %s flows until %d preexisting filters are removed\n", 4544 i40e_flow_str(fsp), 4545 *fdir_filter_count); 4546 return -EOPNOTSUPP; 4547 } 4548 4549 i40e_write_fd_input_set(pf, index, new_mask); 4550 4551 /* IP_USER_FLOW filters match both IPv4/Other and IPv4/Fragmented 4552 * frames. If we're programming the input set for IPv4/Other, we also 4553 * need to program the IPv4/Fragmented input set. Since we don't have 4554 * separate support, we'll always assume and enforce that the two flow 4555 * types must have matching input sets. 4556 */ 4557 if (index == I40E_FILTER_PCTYPE_NONF_IPV4_OTHER) 4558 i40e_write_fd_input_set(pf, I40E_FILTER_PCTYPE_FRAG_IPV4, 4559 new_mask); 4560 4561 /* Add the new offset and update table, if necessary */ 4562 if (new_flex_offset) { 4563 err = i40e_add_flex_offset(&pf->l4_flex_pit_list, src_offset, 4564 pit_index); 4565 if (err) 4566 return err; 4567 4568 if (flex_l3) { 4569 err = i40e_add_flex_offset(&pf->l3_flex_pit_list, 4570 src_offset, 4571 pit_index); 4572 if (err) 4573 return err; 4574 } 4575 4576 i40e_reprogram_flex_pit(pf); 4577 } 4578 4579 return 0; 4580 } 4581 4582 /** 4583 * i40e_match_fdir_filter - Return true of two filters match 4584 * @a: pointer to filter struct 4585 * @b: pointer to filter struct 4586 * 4587 * Returns true if the two filters match exactly the same criteria. I.e. they 4588 * match the same flow type and have the same parameters. We don't need to 4589 * check any input-set since all filters of the same flow type must use the 4590 * same input set. 4591 **/ 4592 static bool i40e_match_fdir_filter(struct i40e_fdir_filter *a, 4593 struct i40e_fdir_filter *b) 4594 { 4595 /* The filters do not much if any of these criteria differ. */ 4596 if (a->dst_ip != b->dst_ip || 4597 a->src_ip != b->src_ip || 4598 a->dst_port != b->dst_port || 4599 a->src_port != b->src_port || 4600 a->flow_type != b->flow_type || 4601 a->ipl4_proto != b->ipl4_proto || 4602 a->vlan_tag != b->vlan_tag || 4603 a->vlan_etype != b->vlan_etype) 4604 return false; 4605 4606 return true; 4607 } 4608 4609 /** 4610 * i40e_disallow_matching_filters - Check that new filters differ 4611 * @vsi: pointer to the targeted VSI 4612 * @input: new filter to check 4613 * 4614 * Due to hardware limitations, it is not possible for two filters that match 4615 * similar criteria to be programmed at the same time. This is true for a few 4616 * reasons: 4617 * 4618 * (a) all filters matching a particular flow type must use the same input 4619 * set, that is they must match the same criteria. 4620 * (b) different flow types will never match the same packet, as the flow type 4621 * is decided by hardware before checking which rules apply. 4622 * (c) hardware has no way to distinguish which order filters apply in. 4623 * 4624 * Due to this, we can't really support using the location data to order 4625 * filters in the hardware parsing. It is technically possible for the user to 4626 * request two filters matching the same criteria but which select different 4627 * queues. In this case, rather than keep both filters in the list, we reject 4628 * the 2nd filter when the user requests adding it. 4629 * 4630 * This avoids needing to track location for programming the filter to 4631 * hardware, and ensures that we avoid some strange scenarios involving 4632 * deleting filters which match the same criteria. 4633 **/ 4634 static int i40e_disallow_matching_filters(struct i40e_vsi *vsi, 4635 struct i40e_fdir_filter *input) 4636 { 4637 struct i40e_pf *pf = vsi->back; 4638 struct i40e_fdir_filter *rule; 4639 struct hlist_node *node2; 4640 4641 /* Loop through every filter, and check that it doesn't match */ 4642 hlist_for_each_entry_safe(rule, node2, 4643 &pf->fdir_filter_list, fdir_node) { 4644 /* Don't check the filters match if they share the same fd_id, 4645 * since the new filter is actually just updating the target 4646 * of the old filter. 4647 */ 4648 if (rule->fd_id == input->fd_id) 4649 continue; 4650 4651 /* If any filters match, then print a warning message to the 4652 * kernel message buffer and bail out. 4653 */ 4654 if (i40e_match_fdir_filter(rule, input)) { 4655 dev_warn(&pf->pdev->dev, 4656 "Existing user defined filter %d already matches this flow.\n", 4657 rule->fd_id); 4658 return -EINVAL; 4659 } 4660 } 4661 4662 return 0; 4663 } 4664 4665 /** 4666 * i40e_add_fdir_ethtool - Add/Remove Flow Director filters 4667 * @vsi: pointer to the targeted VSI 4668 * @cmd: command to get or set RX flow classification rules 4669 * 4670 * Add Flow Director filters for a specific flow spec based on their 4671 * protocol. Returns 0 if the filters were successfully added. 4672 **/ 4673 static int i40e_add_fdir_ethtool(struct i40e_vsi *vsi, 4674 struct ethtool_rxnfc *cmd) 4675 { 4676 struct i40e_rx_flow_userdef userdef; 4677 struct ethtool_rx_flow_spec *fsp; 4678 struct i40e_fdir_filter *input; 4679 u16 dest_vsi = 0, q_index = 0; 4680 struct i40e_pf *pf; 4681 int ret = -EINVAL; 4682 u8 dest_ctl; 4683 4684 if (!vsi) 4685 return -EINVAL; 4686 pf = vsi->back; 4687 4688 if (!(pf->flags & I40E_FLAG_FD_SB_ENABLED)) 4689 return -EOPNOTSUPP; 4690 4691 if (test_bit(__I40E_FD_SB_AUTO_DISABLED, pf->state)) 4692 return -ENOSPC; 4693 4694 if (test_bit(__I40E_RESET_RECOVERY_PENDING, pf->state) || 4695 test_bit(__I40E_RESET_INTR_RECEIVED, pf->state)) 4696 return -EBUSY; 4697 4698 if (test_bit(__I40E_FD_FLUSH_REQUESTED, pf->state)) 4699 return -EBUSY; 4700 4701 fsp = (struct ethtool_rx_flow_spec *)&cmd->fs; 4702 4703 /* Parse the user-defined field */ 4704 if (i40e_parse_rx_flow_user_data(fsp, &userdef)) 4705 return -EINVAL; 4706 4707 /* Extended MAC field is not supported */ 4708 if (fsp->flow_type & FLOW_MAC_EXT) 4709 return -EINVAL; 4710 4711 ret = i40e_check_fdir_input_set(vsi, fsp, &userdef); 4712 if (ret) 4713 return ret; 4714 4715 if (fsp->location >= (pf->hw.func_caps.fd_filters_best_effort + 4716 pf->hw.func_caps.fd_filters_guaranteed)) { 4717 return -EINVAL; 4718 } 4719 4720 /* ring_cookie is either the drop index, or is a mask of the queue 4721 * index and VF id we wish to target. 4722 */ 4723 if (fsp->ring_cookie == RX_CLS_FLOW_DISC) { 4724 dest_ctl = I40E_FILTER_PROGRAM_DESC_DEST_DROP_PACKET; 4725 } else { 4726 u32 ring = ethtool_get_flow_spec_ring(fsp->ring_cookie); 4727 u8 vf = ethtool_get_flow_spec_ring_vf(fsp->ring_cookie); 4728 4729 if (!vf) { 4730 if (ring >= vsi->num_queue_pairs) 4731 return -EINVAL; 4732 dest_vsi = vsi->id; 4733 } else { 4734 /* VFs are zero-indexed, so we subtract one here */ 4735 vf--; 4736 4737 if (vf >= pf->num_alloc_vfs) 4738 return -EINVAL; 4739 if (ring >= pf->vf[vf].num_queue_pairs) 4740 return -EINVAL; 4741 dest_vsi = pf->vf[vf].lan_vsi_id; 4742 } 4743 dest_ctl = I40E_FILTER_PROGRAM_DESC_DEST_DIRECT_PACKET_QINDEX; 4744 q_index = ring; 4745 } 4746 4747 input = kzalloc(sizeof(*input), GFP_KERNEL); 4748 4749 if (!input) 4750 return -ENOMEM; 4751 4752 input->fd_id = fsp->location; 4753 input->q_index = q_index; 4754 input->dest_vsi = dest_vsi; 4755 input->dest_ctl = dest_ctl; 4756 input->fd_status = I40E_FILTER_PROGRAM_DESC_FD_STATUS_FD_ID; 4757 input->cnt_index = I40E_FD_SB_STAT_IDX(pf->hw.pf_id); 4758 input->dst_ip = fsp->h_u.tcp_ip4_spec.ip4src; 4759 input->src_ip = fsp->h_u.tcp_ip4_spec.ip4dst; 4760 input->flow_type = fsp->flow_type & ~FLOW_EXT; 4761 4762 input->vlan_etype = fsp->h_ext.vlan_etype; 4763 if (!fsp->m_ext.vlan_etype && fsp->h_ext.vlan_tci) 4764 input->vlan_etype = cpu_to_be16(ETH_P_8021Q); 4765 if (fsp->m_ext.vlan_tci && input->vlan_etype) 4766 input->vlan_tag = fsp->h_ext.vlan_tci; 4767 if (input->flow_type == IPV6_USER_FLOW || 4768 input->flow_type == UDP_V6_FLOW || 4769 input->flow_type == TCP_V6_FLOW || 4770 input->flow_type == SCTP_V6_FLOW) { 4771 /* Reverse the src and dest notion, since the HW expects them 4772 * to be from Tx perspective where as the input from user is 4773 * from Rx filter view. 4774 */ 4775 input->ipl4_proto = fsp->h_u.usr_ip6_spec.l4_proto; 4776 input->dst_port = fsp->h_u.tcp_ip6_spec.psrc; 4777 input->src_port = fsp->h_u.tcp_ip6_spec.pdst; 4778 memcpy(input->dst_ip6, fsp->h_u.ah_ip6_spec.ip6src, 4779 sizeof(__be32) * 4); 4780 memcpy(input->src_ip6, fsp->h_u.ah_ip6_spec.ip6dst, 4781 sizeof(__be32) * 4); 4782 } else { 4783 /* Reverse the src and dest notion, since the HW expects them 4784 * to be from Tx perspective where as the input from user is 4785 * from Rx filter view. 4786 */ 4787 input->ipl4_proto = fsp->h_u.usr_ip4_spec.proto; 4788 input->dst_port = fsp->h_u.tcp_ip4_spec.psrc; 4789 input->src_port = fsp->h_u.tcp_ip4_spec.pdst; 4790 input->dst_ip = fsp->h_u.tcp_ip4_spec.ip4src; 4791 input->src_ip = fsp->h_u.tcp_ip4_spec.ip4dst; 4792 } 4793 4794 if (userdef.flex_filter) { 4795 input->flex_filter = true; 4796 input->flex_word = cpu_to_be16(userdef.flex_word); 4797 input->flex_offset = userdef.flex_offset; 4798 } 4799 4800 /* Avoid programming two filters with identical match criteria. */ 4801 ret = i40e_disallow_matching_filters(vsi, input); 4802 if (ret) 4803 goto free_filter_memory; 4804 4805 /* Add the input filter to the fdir_input_list, possibly replacing 4806 * a previous filter. Do not free the input structure after adding it 4807 * to the list as this would cause a use-after-free bug. 4808 */ 4809 i40e_update_ethtool_fdir_entry(vsi, input, fsp->location, NULL); 4810 ret = i40e_add_del_fdir(vsi, input, true); 4811 if (ret) 4812 goto remove_sw_rule; 4813 return 0; 4814 4815 remove_sw_rule: 4816 hlist_del(&input->fdir_node); 4817 pf->fdir_pf_active_filters--; 4818 free_filter_memory: 4819 kfree(input); 4820 return ret; 4821 } 4822 4823 /** 4824 * i40e_set_rxnfc - command to set RX flow classification rules 4825 * @netdev: network interface device structure 4826 * @cmd: ethtool rxnfc command 4827 * 4828 * Returns Success if the command is supported. 4829 **/ 4830 static int i40e_set_rxnfc(struct net_device *netdev, struct ethtool_rxnfc *cmd) 4831 { 4832 struct i40e_netdev_priv *np = netdev_priv(netdev); 4833 struct i40e_vsi *vsi = np->vsi; 4834 struct i40e_pf *pf = vsi->back; 4835 int ret = -EOPNOTSUPP; 4836 4837 switch (cmd->cmd) { 4838 case ETHTOOL_SRXFH: 4839 ret = i40e_set_rss_hash_opt(pf, cmd); 4840 break; 4841 case ETHTOOL_SRXCLSRLINS: 4842 ret = i40e_add_fdir_ethtool(vsi, cmd); 4843 break; 4844 case ETHTOOL_SRXCLSRLDEL: 4845 ret = i40e_del_fdir_entry(vsi, cmd); 4846 break; 4847 default: 4848 break; 4849 } 4850 4851 return ret; 4852 } 4853 4854 /** 4855 * i40e_max_channels - get Max number of combined channels supported 4856 * @vsi: vsi pointer 4857 **/ 4858 static unsigned int i40e_max_channels(struct i40e_vsi *vsi) 4859 { 4860 /* TODO: This code assumes DCB and FD is disabled for now. */ 4861 return vsi->alloc_queue_pairs; 4862 } 4863 4864 /** 4865 * i40e_get_channels - Get the current channels enabled and max supported etc. 4866 * @dev: network interface device structure 4867 * @ch: ethtool channels structure 4868 * 4869 * We don't support separate tx and rx queues as channels. The other count 4870 * represents how many queues are being used for control. max_combined counts 4871 * how many queue pairs we can support. They may not be mapped 1 to 1 with 4872 * q_vectors since we support a lot more queue pairs than q_vectors. 4873 **/ 4874 static void i40e_get_channels(struct net_device *dev, 4875 struct ethtool_channels *ch) 4876 { 4877 struct i40e_netdev_priv *np = netdev_priv(dev); 4878 struct i40e_vsi *vsi = np->vsi; 4879 struct i40e_pf *pf = vsi->back; 4880 4881 /* report maximum channels */ 4882 ch->max_combined = i40e_max_channels(vsi); 4883 4884 /* report info for other vector */ 4885 ch->other_count = (pf->flags & I40E_FLAG_FD_SB_ENABLED) ? 1 : 0; 4886 ch->max_other = ch->other_count; 4887 4888 /* Note: This code assumes DCB is disabled for now. */ 4889 ch->combined_count = vsi->num_queue_pairs; 4890 } 4891 4892 /** 4893 * i40e_set_channels - Set the new channels count. 4894 * @dev: network interface device structure 4895 * @ch: ethtool channels structure 4896 * 4897 * The new channels count may not be the same as requested by the user 4898 * since it gets rounded down to a power of 2 value. 4899 **/ 4900 static int i40e_set_channels(struct net_device *dev, 4901 struct ethtool_channels *ch) 4902 { 4903 const u8 drop = I40E_FILTER_PROGRAM_DESC_DEST_DROP_PACKET; 4904 struct i40e_netdev_priv *np = netdev_priv(dev); 4905 unsigned int count = ch->combined_count; 4906 struct i40e_vsi *vsi = np->vsi; 4907 struct i40e_pf *pf = vsi->back; 4908 struct i40e_fdir_filter *rule; 4909 struct hlist_node *node2; 4910 int new_count; 4911 int err = 0; 4912 4913 /* We do not support setting channels for any other VSI at present */ 4914 if (vsi->type != I40E_VSI_MAIN) 4915 return -EINVAL; 4916 4917 /* We do not support setting channels via ethtool when TCs are 4918 * configured through mqprio 4919 */ 4920 if (pf->flags & I40E_FLAG_TC_MQPRIO) 4921 return -EINVAL; 4922 4923 /* verify they are not requesting separate vectors */ 4924 if (!count || ch->rx_count || ch->tx_count) 4925 return -EINVAL; 4926 4927 /* verify other_count has not changed */ 4928 if (ch->other_count != ((pf->flags & I40E_FLAG_FD_SB_ENABLED) ? 1 : 0)) 4929 return -EINVAL; 4930 4931 /* verify the number of channels does not exceed hardware limits */ 4932 if (count > i40e_max_channels(vsi)) 4933 return -EINVAL; 4934 4935 /* verify that the number of channels does not invalidate any current 4936 * flow director rules 4937 */ 4938 hlist_for_each_entry_safe(rule, node2, 4939 &pf->fdir_filter_list, fdir_node) { 4940 if (rule->dest_ctl != drop && count <= rule->q_index) { 4941 dev_warn(&pf->pdev->dev, 4942 "Existing user defined filter %d assigns flow to queue %d\n", 4943 rule->fd_id, rule->q_index); 4944 err = -EINVAL; 4945 } 4946 } 4947 4948 if (err) { 4949 dev_err(&pf->pdev->dev, 4950 "Existing filter rules must be deleted to reduce combined channel count to %d\n", 4951 count); 4952 return err; 4953 } 4954 4955 /* update feature limits from largest to smallest supported values */ 4956 /* TODO: Flow director limit, DCB etc */ 4957 4958 /* use rss_reconfig to rebuild with new queue count and update traffic 4959 * class queue mapping 4960 */ 4961 new_count = i40e_reconfig_rss_queues(pf, count); 4962 if (new_count > 0) 4963 return 0; 4964 else 4965 return -EINVAL; 4966 } 4967 4968 /** 4969 * i40e_get_rxfh_key_size - get the RSS hash key size 4970 * @netdev: network interface device structure 4971 * 4972 * Returns the table size. 4973 **/ 4974 static u32 i40e_get_rxfh_key_size(struct net_device *netdev) 4975 { 4976 return I40E_HKEY_ARRAY_SIZE; 4977 } 4978 4979 /** 4980 * i40e_get_rxfh_indir_size - get the rx flow hash indirection table size 4981 * @netdev: network interface device structure 4982 * 4983 * Returns the table size. 4984 **/ 4985 static u32 i40e_get_rxfh_indir_size(struct net_device *netdev) 4986 { 4987 return I40E_HLUT_ARRAY_SIZE; 4988 } 4989 4990 /** 4991 * i40e_get_rxfh - get the rx flow hash indirection table 4992 * @netdev: network interface device structure 4993 * @indir: indirection table 4994 * @key: hash key 4995 * @hfunc: hash function 4996 * 4997 * Reads the indirection table directly from the hardware. Returns 0 on 4998 * success. 4999 **/ 5000 static int i40e_get_rxfh(struct net_device *netdev, u32 *indir, u8 *key, 5001 u8 *hfunc) 5002 { 5003 struct i40e_netdev_priv *np = netdev_priv(netdev); 5004 struct i40e_vsi *vsi = np->vsi; 5005 u8 *lut, *seed = NULL; 5006 int ret; 5007 u16 i; 5008 5009 if (hfunc) 5010 *hfunc = ETH_RSS_HASH_TOP; 5011 5012 if (!indir) 5013 return 0; 5014 5015 seed = key; 5016 lut = kzalloc(I40E_HLUT_ARRAY_SIZE, GFP_KERNEL); 5017 if (!lut) 5018 return -ENOMEM; 5019 ret = i40e_get_rss(vsi, seed, lut, I40E_HLUT_ARRAY_SIZE); 5020 if (ret) 5021 goto out; 5022 for (i = 0; i < I40E_HLUT_ARRAY_SIZE; i++) 5023 indir[i] = (u32)(lut[i]); 5024 5025 out: 5026 kfree(lut); 5027 5028 return ret; 5029 } 5030 5031 /** 5032 * i40e_set_rxfh - set the rx flow hash indirection table 5033 * @netdev: network interface device structure 5034 * @indir: indirection table 5035 * @key: hash key 5036 * @hfunc: hash function to use 5037 * 5038 * Returns -EINVAL if the table specifies an invalid queue id, otherwise 5039 * returns 0 after programming the table. 5040 **/ 5041 static int i40e_set_rxfh(struct net_device *netdev, const u32 *indir, 5042 const u8 *key, const u8 hfunc) 5043 { 5044 struct i40e_netdev_priv *np = netdev_priv(netdev); 5045 struct i40e_vsi *vsi = np->vsi; 5046 struct i40e_pf *pf = vsi->back; 5047 u8 *seed = NULL; 5048 u16 i; 5049 5050 if (hfunc != ETH_RSS_HASH_NO_CHANGE && hfunc != ETH_RSS_HASH_TOP) 5051 return -EOPNOTSUPP; 5052 5053 if (key) { 5054 if (!vsi->rss_hkey_user) { 5055 vsi->rss_hkey_user = kzalloc(I40E_HKEY_ARRAY_SIZE, 5056 GFP_KERNEL); 5057 if (!vsi->rss_hkey_user) 5058 return -ENOMEM; 5059 } 5060 memcpy(vsi->rss_hkey_user, key, I40E_HKEY_ARRAY_SIZE); 5061 seed = vsi->rss_hkey_user; 5062 } 5063 if (!vsi->rss_lut_user) { 5064 vsi->rss_lut_user = kzalloc(I40E_HLUT_ARRAY_SIZE, GFP_KERNEL); 5065 if (!vsi->rss_lut_user) 5066 return -ENOMEM; 5067 } 5068 5069 /* Each 32 bits pointed by 'indir' is stored with a lut entry */ 5070 if (indir) 5071 for (i = 0; i < I40E_HLUT_ARRAY_SIZE; i++) 5072 vsi->rss_lut_user[i] = (u8)(indir[i]); 5073 else 5074 i40e_fill_rss_lut(pf, vsi->rss_lut_user, I40E_HLUT_ARRAY_SIZE, 5075 vsi->rss_size); 5076 5077 return i40e_config_rss(vsi, seed, vsi->rss_lut_user, 5078 I40E_HLUT_ARRAY_SIZE); 5079 } 5080 5081 /** 5082 * i40e_get_priv_flags - report device private flags 5083 * @dev: network interface device structure 5084 * 5085 * The get string set count and the string set should be matched for each 5086 * flag returned. Add new strings for each flag to the i40e_gstrings_priv_flags 5087 * array. 5088 * 5089 * Returns a u32 bitmap of flags. 5090 **/ 5091 static u32 i40e_get_priv_flags(struct net_device *dev) 5092 { 5093 struct i40e_netdev_priv *np = netdev_priv(dev); 5094 struct i40e_vsi *vsi = np->vsi; 5095 struct i40e_pf *pf = vsi->back; 5096 u32 i, j, ret_flags = 0; 5097 5098 for (i = 0; i < I40E_PRIV_FLAGS_STR_LEN; i++) { 5099 const struct i40e_priv_flags *priv_flags; 5100 5101 priv_flags = &i40e_gstrings_priv_flags[i]; 5102 5103 if (priv_flags->flag & pf->flags) 5104 ret_flags |= BIT(i); 5105 } 5106 5107 if (pf->hw.pf_id != 0) 5108 return ret_flags; 5109 5110 for (j = 0; j < I40E_GL_PRIV_FLAGS_STR_LEN; j++) { 5111 const struct i40e_priv_flags *priv_flags; 5112 5113 priv_flags = &i40e_gl_gstrings_priv_flags[j]; 5114 5115 if (priv_flags->flag & pf->flags) 5116 ret_flags |= BIT(i + j); 5117 } 5118 5119 return ret_flags; 5120 } 5121 5122 /** 5123 * i40e_set_priv_flags - set private flags 5124 * @dev: network interface device structure 5125 * @flags: bit flags to be set 5126 **/ 5127 static int i40e_set_priv_flags(struct net_device *dev, u32 flags) 5128 { 5129 struct i40e_netdev_priv *np = netdev_priv(dev); 5130 u64 orig_flags, new_flags, changed_flags; 5131 enum i40e_admin_queue_err adq_err; 5132 struct i40e_vsi *vsi = np->vsi; 5133 struct i40e_pf *pf = vsi->back; 5134 u32 reset_needed = 0; 5135 i40e_status status; 5136 u32 i, j; 5137 5138 orig_flags = READ_ONCE(pf->flags); 5139 new_flags = orig_flags; 5140 5141 for (i = 0; i < I40E_PRIV_FLAGS_STR_LEN; i++) { 5142 const struct i40e_priv_flags *priv_flags; 5143 5144 priv_flags = &i40e_gstrings_priv_flags[i]; 5145 5146 if (flags & BIT(i)) 5147 new_flags |= priv_flags->flag; 5148 else 5149 new_flags &= ~(priv_flags->flag); 5150 5151 /* If this is a read-only flag, it can't be changed */ 5152 if (priv_flags->read_only && 5153 ((orig_flags ^ new_flags) & ~BIT(i))) 5154 return -EOPNOTSUPP; 5155 } 5156 5157 if (pf->hw.pf_id != 0) 5158 goto flags_complete; 5159 5160 for (j = 0; j < I40E_GL_PRIV_FLAGS_STR_LEN; j++) { 5161 const struct i40e_priv_flags *priv_flags; 5162 5163 priv_flags = &i40e_gl_gstrings_priv_flags[j]; 5164 5165 if (flags & BIT(i + j)) 5166 new_flags |= priv_flags->flag; 5167 else 5168 new_flags &= ~(priv_flags->flag); 5169 5170 /* If this is a read-only flag, it can't be changed */ 5171 if (priv_flags->read_only && 5172 ((orig_flags ^ new_flags) & ~BIT(i))) 5173 return -EOPNOTSUPP; 5174 } 5175 5176 flags_complete: 5177 changed_flags = orig_flags ^ new_flags; 5178 5179 if (changed_flags & I40E_FLAG_DISABLE_FW_LLDP) 5180 reset_needed = I40E_PF_RESET_AND_REBUILD_FLAG; 5181 if (changed_flags & (I40E_FLAG_VEB_STATS_ENABLED | 5182 I40E_FLAG_LEGACY_RX | I40E_FLAG_SOURCE_PRUNING_DISABLED)) 5183 reset_needed = BIT(__I40E_PF_RESET_REQUESTED); 5184 5185 /* Before we finalize any flag changes, we need to perform some 5186 * checks to ensure that the changes are supported and safe. 5187 */ 5188 5189 /* ATR eviction is not supported on all devices */ 5190 if ((new_flags & I40E_FLAG_HW_ATR_EVICT_ENABLED) && 5191 !(pf->hw_features & I40E_HW_ATR_EVICT_CAPABLE)) 5192 return -EOPNOTSUPP; 5193 5194 /* If the driver detected FW LLDP was disabled on init, this flag could 5195 * be set, however we do not support _changing_ the flag: 5196 * - on XL710 if NPAR is enabled or FW API version < 1.7 5197 * - on X722 with FW API version < 1.6 5198 * There are situations where older FW versions/NPAR enabled PFs could 5199 * disable LLDP, however we _must_ not allow the user to enable/disable 5200 * LLDP with this flag on unsupported FW versions. 5201 */ 5202 if (changed_flags & I40E_FLAG_DISABLE_FW_LLDP) { 5203 if (!(pf->hw.flags & I40E_HW_FLAG_FW_LLDP_STOPPABLE)) { 5204 dev_warn(&pf->pdev->dev, 5205 "Device does not support changing FW LLDP\n"); 5206 return -EOPNOTSUPP; 5207 } 5208 } 5209 5210 if (changed_flags & I40E_FLAG_RS_FEC && 5211 pf->hw.device_id != I40E_DEV_ID_25G_SFP28 && 5212 pf->hw.device_id != I40E_DEV_ID_25G_B) { 5213 dev_warn(&pf->pdev->dev, 5214 "Device does not support changing FEC configuration\n"); 5215 return -EOPNOTSUPP; 5216 } 5217 5218 if (changed_flags & I40E_FLAG_BASE_R_FEC && 5219 pf->hw.device_id != I40E_DEV_ID_25G_SFP28 && 5220 pf->hw.device_id != I40E_DEV_ID_25G_B && 5221 pf->hw.device_id != I40E_DEV_ID_KX_X722) { 5222 dev_warn(&pf->pdev->dev, 5223 "Device does not support changing FEC configuration\n"); 5224 return -EOPNOTSUPP; 5225 } 5226 5227 /* Process any additional changes needed as a result of flag changes. 5228 * The changed_flags value reflects the list of bits that were 5229 * changed in the code above. 5230 */ 5231 5232 /* Flush current ATR settings if ATR was disabled */ 5233 if ((changed_flags & I40E_FLAG_FD_ATR_ENABLED) && 5234 !(new_flags & I40E_FLAG_FD_ATR_ENABLED)) { 5235 set_bit(__I40E_FD_ATR_AUTO_DISABLED, pf->state); 5236 set_bit(__I40E_FD_FLUSH_REQUESTED, pf->state); 5237 } 5238 5239 if (changed_flags & I40E_FLAG_TRUE_PROMISC_SUPPORT) { 5240 u16 sw_flags = 0, valid_flags = 0; 5241 int ret; 5242 5243 if (!(new_flags & I40E_FLAG_TRUE_PROMISC_SUPPORT)) 5244 sw_flags = I40E_AQ_SET_SWITCH_CFG_PROMISC; 5245 valid_flags = I40E_AQ_SET_SWITCH_CFG_PROMISC; 5246 ret = i40e_aq_set_switch_config(&pf->hw, sw_flags, valid_flags, 5247 0, NULL); 5248 if (ret && pf->hw.aq.asq_last_status != I40E_AQ_RC_ESRCH) { 5249 dev_info(&pf->pdev->dev, 5250 "couldn't set switch config bits, err %s aq_err %s\n", 5251 i40e_stat_str(&pf->hw, ret), 5252 i40e_aq_str(&pf->hw, 5253 pf->hw.aq.asq_last_status)); 5254 /* not a fatal problem, just keep going */ 5255 } 5256 } 5257 5258 if ((changed_flags & I40E_FLAG_RS_FEC) || 5259 (changed_flags & I40E_FLAG_BASE_R_FEC)) { 5260 u8 fec_cfg = 0; 5261 5262 if (new_flags & I40E_FLAG_RS_FEC && 5263 new_flags & I40E_FLAG_BASE_R_FEC) { 5264 fec_cfg = I40E_AQ_SET_FEC_AUTO; 5265 } else if (new_flags & I40E_FLAG_RS_FEC) { 5266 fec_cfg = (I40E_AQ_SET_FEC_REQUEST_RS | 5267 I40E_AQ_SET_FEC_ABILITY_RS); 5268 } else if (new_flags & I40E_FLAG_BASE_R_FEC) { 5269 fec_cfg = (I40E_AQ_SET_FEC_REQUEST_KR | 5270 I40E_AQ_SET_FEC_ABILITY_KR); 5271 } 5272 if (i40e_set_fec_cfg(dev, fec_cfg)) 5273 dev_warn(&pf->pdev->dev, "Cannot change FEC config\n"); 5274 } 5275 5276 if ((changed_flags & I40E_FLAG_LINK_DOWN_ON_CLOSE_ENABLED) && 5277 (orig_flags & I40E_FLAG_TOTAL_PORT_SHUTDOWN_ENABLED)) { 5278 dev_err(&pf->pdev->dev, 5279 "Setting link-down-on-close not supported on this port (because total-port-shutdown is enabled)\n"); 5280 return -EOPNOTSUPP; 5281 } 5282 5283 if ((changed_flags & new_flags & 5284 I40E_FLAG_LINK_DOWN_ON_CLOSE_ENABLED) && 5285 (new_flags & I40E_FLAG_MFP_ENABLED)) 5286 dev_warn(&pf->pdev->dev, 5287 "Turning on link-down-on-close flag may affect other partitions\n"); 5288 5289 if (changed_flags & I40E_FLAG_DISABLE_FW_LLDP) { 5290 if (new_flags & I40E_FLAG_DISABLE_FW_LLDP) { 5291 #ifdef CONFIG_I40E_DCB 5292 i40e_dcb_sw_default_config(pf); 5293 #endif /* CONFIG_I40E_DCB */ 5294 i40e_aq_cfg_lldp_mib_change_event(&pf->hw, false, NULL); 5295 i40e_aq_stop_lldp(&pf->hw, true, false, NULL); 5296 } else { 5297 status = i40e_aq_start_lldp(&pf->hw, false, NULL); 5298 if (status) { 5299 adq_err = pf->hw.aq.asq_last_status; 5300 switch (adq_err) { 5301 case I40E_AQ_RC_EEXIST: 5302 dev_warn(&pf->pdev->dev, 5303 "FW LLDP agent is already running\n"); 5304 reset_needed = 0; 5305 break; 5306 case I40E_AQ_RC_EPERM: 5307 dev_warn(&pf->pdev->dev, 5308 "Device configuration forbids SW from starting the LLDP agent.\n"); 5309 return -EINVAL; 5310 case I40E_AQ_RC_EAGAIN: 5311 dev_warn(&pf->pdev->dev, 5312 "Stop FW LLDP agent command is still being processed, please try again in a second.\n"); 5313 return -EBUSY; 5314 default: 5315 dev_warn(&pf->pdev->dev, 5316 "Starting FW LLDP agent failed: error: %s, %s\n", 5317 i40e_stat_str(&pf->hw, 5318 status), 5319 i40e_aq_str(&pf->hw, 5320 adq_err)); 5321 return -EINVAL; 5322 } 5323 } 5324 } 5325 } 5326 5327 /* Now that we've checked to ensure that the new flags are valid, load 5328 * them into place. Since we only modify flags either (a) during 5329 * initialization or (b) while holding the RTNL lock, we don't need 5330 * anything fancy here. 5331 */ 5332 pf->flags = new_flags; 5333 5334 /* Issue reset to cause things to take effect, as additional bits 5335 * are added we will need to create a mask of bits requiring reset 5336 */ 5337 if (reset_needed) 5338 i40e_do_reset(pf, reset_needed, true); 5339 5340 return 0; 5341 } 5342 5343 /** 5344 * i40e_get_module_info - get (Q)SFP+ module type info 5345 * @netdev: network interface device structure 5346 * @modinfo: module EEPROM size and layout information structure 5347 **/ 5348 static int i40e_get_module_info(struct net_device *netdev, 5349 struct ethtool_modinfo *modinfo) 5350 { 5351 struct i40e_netdev_priv *np = netdev_priv(netdev); 5352 struct i40e_vsi *vsi = np->vsi; 5353 struct i40e_pf *pf = vsi->back; 5354 struct i40e_hw *hw = &pf->hw; 5355 u32 sff8472_comp = 0; 5356 u32 sff8472_swap = 0; 5357 u32 sff8636_rev = 0; 5358 i40e_status status; 5359 u32 type = 0; 5360 5361 /* Check if firmware supports reading module EEPROM. */ 5362 if (!(hw->flags & I40E_HW_FLAG_AQ_PHY_ACCESS_CAPABLE)) { 5363 netdev_err(vsi->netdev, "Module EEPROM memory read not supported. Please update the NVM image.\n"); 5364 return -EINVAL; 5365 } 5366 5367 status = i40e_update_link_info(hw); 5368 if (status) 5369 return -EIO; 5370 5371 if (hw->phy.link_info.phy_type == I40E_PHY_TYPE_EMPTY) { 5372 netdev_err(vsi->netdev, "Cannot read module EEPROM memory. No module connected.\n"); 5373 return -EINVAL; 5374 } 5375 5376 type = hw->phy.link_info.module_type[0]; 5377 5378 switch (type) { 5379 case I40E_MODULE_TYPE_SFP: 5380 status = i40e_aq_get_phy_register(hw, 5381 I40E_AQ_PHY_REG_ACCESS_EXTERNAL_MODULE, 5382 I40E_I2C_EEPROM_DEV_ADDR, true, 5383 I40E_MODULE_SFF_8472_COMP, 5384 &sff8472_comp, NULL); 5385 if (status) 5386 return -EIO; 5387 5388 status = i40e_aq_get_phy_register(hw, 5389 I40E_AQ_PHY_REG_ACCESS_EXTERNAL_MODULE, 5390 I40E_I2C_EEPROM_DEV_ADDR, true, 5391 I40E_MODULE_SFF_8472_SWAP, 5392 &sff8472_swap, NULL); 5393 if (status) 5394 return -EIO; 5395 5396 /* Check if the module requires address swap to access 5397 * the other EEPROM memory page. 5398 */ 5399 if (sff8472_swap & I40E_MODULE_SFF_ADDR_MODE) { 5400 netdev_warn(vsi->netdev, "Module address swap to access page 0xA2 is not supported.\n"); 5401 modinfo->type = ETH_MODULE_SFF_8079; 5402 modinfo->eeprom_len = ETH_MODULE_SFF_8079_LEN; 5403 } else if (sff8472_comp == 0x00) { 5404 /* Module is not SFF-8472 compliant */ 5405 modinfo->type = ETH_MODULE_SFF_8079; 5406 modinfo->eeprom_len = ETH_MODULE_SFF_8079_LEN; 5407 } else if (!(sff8472_swap & I40E_MODULE_SFF_DDM_IMPLEMENTED)) { 5408 /* Module is SFF-8472 compliant but doesn't implement 5409 * Digital Diagnostic Monitoring (DDM). 5410 */ 5411 modinfo->type = ETH_MODULE_SFF_8079; 5412 modinfo->eeprom_len = ETH_MODULE_SFF_8079_LEN; 5413 } else { 5414 modinfo->type = ETH_MODULE_SFF_8472; 5415 modinfo->eeprom_len = ETH_MODULE_SFF_8472_LEN; 5416 } 5417 break; 5418 case I40E_MODULE_TYPE_QSFP_PLUS: 5419 /* Read from memory page 0. */ 5420 status = i40e_aq_get_phy_register(hw, 5421 I40E_AQ_PHY_REG_ACCESS_EXTERNAL_MODULE, 5422 0, true, 5423 I40E_MODULE_REVISION_ADDR, 5424 &sff8636_rev, NULL); 5425 if (status) 5426 return -EIO; 5427 /* Determine revision compliance byte */ 5428 if (sff8636_rev > 0x02) { 5429 /* Module is SFF-8636 compliant */ 5430 modinfo->type = ETH_MODULE_SFF_8636; 5431 modinfo->eeprom_len = I40E_MODULE_QSFP_MAX_LEN; 5432 } else { 5433 modinfo->type = ETH_MODULE_SFF_8436; 5434 modinfo->eeprom_len = I40E_MODULE_QSFP_MAX_LEN; 5435 } 5436 break; 5437 case I40E_MODULE_TYPE_QSFP28: 5438 modinfo->type = ETH_MODULE_SFF_8636; 5439 modinfo->eeprom_len = I40E_MODULE_QSFP_MAX_LEN; 5440 break; 5441 default: 5442 netdev_err(vsi->netdev, "Module type unrecognized\n"); 5443 return -EINVAL; 5444 } 5445 return 0; 5446 } 5447 5448 /** 5449 * i40e_get_module_eeprom - fills buffer with (Q)SFP+ module memory contents 5450 * @netdev: network interface device structure 5451 * @ee: EEPROM dump request structure 5452 * @data: buffer to be filled with EEPROM contents 5453 **/ 5454 static int i40e_get_module_eeprom(struct net_device *netdev, 5455 struct ethtool_eeprom *ee, 5456 u8 *data) 5457 { 5458 struct i40e_netdev_priv *np = netdev_priv(netdev); 5459 struct i40e_vsi *vsi = np->vsi; 5460 struct i40e_pf *pf = vsi->back; 5461 struct i40e_hw *hw = &pf->hw; 5462 bool is_sfp = false; 5463 i40e_status status; 5464 u32 value = 0; 5465 int i; 5466 5467 if (!ee || !ee->len || !data) 5468 return -EINVAL; 5469 5470 if (hw->phy.link_info.module_type[0] == I40E_MODULE_TYPE_SFP) 5471 is_sfp = true; 5472 5473 for (i = 0; i < ee->len; i++) { 5474 u32 offset = i + ee->offset; 5475 u32 addr = is_sfp ? I40E_I2C_EEPROM_DEV_ADDR : 0; 5476 5477 /* Check if we need to access the other memory page */ 5478 if (is_sfp) { 5479 if (offset >= ETH_MODULE_SFF_8079_LEN) { 5480 offset -= ETH_MODULE_SFF_8079_LEN; 5481 addr = I40E_I2C_EEPROM_DEV_ADDR2; 5482 } 5483 } else { 5484 while (offset >= ETH_MODULE_SFF_8436_LEN) { 5485 /* Compute memory page number and offset. */ 5486 offset -= ETH_MODULE_SFF_8436_LEN / 2; 5487 addr++; 5488 } 5489 } 5490 5491 status = i40e_aq_get_phy_register(hw, 5492 I40E_AQ_PHY_REG_ACCESS_EXTERNAL_MODULE, 5493 addr, true, offset, &value, NULL); 5494 if (status) 5495 return -EIO; 5496 data[i] = value; 5497 } 5498 return 0; 5499 } 5500 5501 static int i40e_get_eee(struct net_device *netdev, struct ethtool_eee *edata) 5502 { 5503 struct i40e_netdev_priv *np = netdev_priv(netdev); 5504 struct i40e_aq_get_phy_abilities_resp phy_cfg; 5505 enum i40e_status_code status = 0; 5506 struct i40e_vsi *vsi = np->vsi; 5507 struct i40e_pf *pf = vsi->back; 5508 struct i40e_hw *hw = &pf->hw; 5509 5510 /* Get initial PHY capabilities */ 5511 status = i40e_aq_get_phy_capabilities(hw, false, true, &phy_cfg, NULL); 5512 if (status) 5513 return -EAGAIN; 5514 5515 /* Check whether NIC configuration is compatible with Energy Efficient 5516 * Ethernet (EEE) mode. 5517 */ 5518 if (phy_cfg.eee_capability == 0) 5519 return -EOPNOTSUPP; 5520 5521 edata->supported = SUPPORTED_Autoneg; 5522 edata->lp_advertised = edata->supported; 5523 5524 /* Get current configuration */ 5525 status = i40e_aq_get_phy_capabilities(hw, false, false, &phy_cfg, NULL); 5526 if (status) 5527 return -EAGAIN; 5528 5529 edata->advertised = phy_cfg.eee_capability ? SUPPORTED_Autoneg : 0U; 5530 edata->eee_enabled = !!edata->advertised; 5531 edata->tx_lpi_enabled = pf->stats.tx_lpi_status; 5532 5533 edata->eee_active = pf->stats.tx_lpi_status && pf->stats.rx_lpi_status; 5534 5535 return 0; 5536 } 5537 5538 static int i40e_is_eee_param_supported(struct net_device *netdev, 5539 struct ethtool_eee *edata) 5540 { 5541 struct i40e_netdev_priv *np = netdev_priv(netdev); 5542 struct i40e_vsi *vsi = np->vsi; 5543 struct i40e_pf *pf = vsi->back; 5544 struct i40e_ethtool_not_used { 5545 u32 value; 5546 const char *name; 5547 } param[] = { 5548 {edata->advertised & ~SUPPORTED_Autoneg, "advertise"}, 5549 {edata->tx_lpi_timer, "tx-timer"}, 5550 {edata->tx_lpi_enabled != pf->stats.tx_lpi_status, "tx-lpi"} 5551 }; 5552 int i; 5553 5554 for (i = 0; i < ARRAY_SIZE(param); i++) { 5555 if (param[i].value) { 5556 netdev_info(netdev, 5557 "EEE setting %s not supported\n", 5558 param[i].name); 5559 return -EOPNOTSUPP; 5560 } 5561 } 5562 5563 return 0; 5564 } 5565 5566 static int i40e_set_eee(struct net_device *netdev, struct ethtool_eee *edata) 5567 { 5568 struct i40e_netdev_priv *np = netdev_priv(netdev); 5569 struct i40e_aq_get_phy_abilities_resp abilities; 5570 enum i40e_status_code status = I40E_SUCCESS; 5571 struct i40e_aq_set_phy_config config; 5572 struct i40e_vsi *vsi = np->vsi; 5573 struct i40e_pf *pf = vsi->back; 5574 struct i40e_hw *hw = &pf->hw; 5575 __le16 eee_capability; 5576 5577 /* Deny parameters we don't support */ 5578 if (i40e_is_eee_param_supported(netdev, edata)) 5579 return -EOPNOTSUPP; 5580 5581 /* Get initial PHY capabilities */ 5582 status = i40e_aq_get_phy_capabilities(hw, false, true, &abilities, 5583 NULL); 5584 if (status) 5585 return -EAGAIN; 5586 5587 /* Check whether NIC configuration is compatible with Energy Efficient 5588 * Ethernet (EEE) mode. 5589 */ 5590 if (abilities.eee_capability == 0) 5591 return -EOPNOTSUPP; 5592 5593 /* Cache initial EEE capability */ 5594 eee_capability = abilities.eee_capability; 5595 5596 /* Get current PHY configuration */ 5597 status = i40e_aq_get_phy_capabilities(hw, false, false, &abilities, 5598 NULL); 5599 if (status) 5600 return -EAGAIN; 5601 5602 /* Cache current PHY configuration */ 5603 config.phy_type = abilities.phy_type; 5604 config.phy_type_ext = abilities.phy_type_ext; 5605 config.link_speed = abilities.link_speed; 5606 config.abilities = abilities.abilities | 5607 I40E_AQ_PHY_ENABLE_ATOMIC_LINK; 5608 config.eeer = abilities.eeer_val; 5609 config.low_power_ctrl = abilities.d3_lpan; 5610 config.fec_config = abilities.fec_cfg_curr_mod_ext_info & 5611 I40E_AQ_PHY_FEC_CONFIG_MASK; 5612 5613 /* Set desired EEE state */ 5614 if (edata->eee_enabled) { 5615 config.eee_capability = eee_capability; 5616 config.eeer |= cpu_to_le32(I40E_PRTPM_EEER_TX_LPI_EN_MASK); 5617 } else { 5618 config.eee_capability = 0; 5619 config.eeer &= cpu_to_le32(~I40E_PRTPM_EEER_TX_LPI_EN_MASK); 5620 } 5621 5622 /* Apply modified PHY configuration */ 5623 status = i40e_aq_set_phy_config(hw, &config, NULL); 5624 if (status) 5625 return -EAGAIN; 5626 5627 return 0; 5628 } 5629 5630 static const struct ethtool_ops i40e_ethtool_recovery_mode_ops = { 5631 .get_drvinfo = i40e_get_drvinfo, 5632 .set_eeprom = i40e_set_eeprom, 5633 .get_eeprom_len = i40e_get_eeprom_len, 5634 .get_eeprom = i40e_get_eeprom, 5635 }; 5636 5637 static const struct ethtool_ops i40e_ethtool_ops = { 5638 .supported_coalesce_params = ETHTOOL_COALESCE_USECS | 5639 ETHTOOL_COALESCE_MAX_FRAMES_IRQ | 5640 ETHTOOL_COALESCE_USE_ADAPTIVE | 5641 ETHTOOL_COALESCE_RX_USECS_HIGH | 5642 ETHTOOL_COALESCE_TX_USECS_HIGH, 5643 .get_drvinfo = i40e_get_drvinfo, 5644 .get_regs_len = i40e_get_regs_len, 5645 .get_regs = i40e_get_regs, 5646 .nway_reset = i40e_nway_reset, 5647 .get_link = ethtool_op_get_link, 5648 .get_wol = i40e_get_wol, 5649 .set_wol = i40e_set_wol, 5650 .set_eeprom = i40e_set_eeprom, 5651 .get_eeprom_len = i40e_get_eeprom_len, 5652 .get_eeprom = i40e_get_eeprom, 5653 .get_ringparam = i40e_get_ringparam, 5654 .set_ringparam = i40e_set_ringparam, 5655 .get_pauseparam = i40e_get_pauseparam, 5656 .set_pauseparam = i40e_set_pauseparam, 5657 .get_msglevel = i40e_get_msglevel, 5658 .set_msglevel = i40e_set_msglevel, 5659 .get_rxnfc = i40e_get_rxnfc, 5660 .set_rxnfc = i40e_set_rxnfc, 5661 .self_test = i40e_diag_test, 5662 .get_strings = i40e_get_strings, 5663 .get_eee = i40e_get_eee, 5664 .set_eee = i40e_set_eee, 5665 .set_phys_id = i40e_set_phys_id, 5666 .get_sset_count = i40e_get_sset_count, 5667 .get_ethtool_stats = i40e_get_ethtool_stats, 5668 .get_coalesce = i40e_get_coalesce, 5669 .set_coalesce = i40e_set_coalesce, 5670 .get_rxfh_key_size = i40e_get_rxfh_key_size, 5671 .get_rxfh_indir_size = i40e_get_rxfh_indir_size, 5672 .get_rxfh = i40e_get_rxfh, 5673 .set_rxfh = i40e_set_rxfh, 5674 .get_channels = i40e_get_channels, 5675 .set_channels = i40e_set_channels, 5676 .get_module_info = i40e_get_module_info, 5677 .get_module_eeprom = i40e_get_module_eeprom, 5678 .get_ts_info = i40e_get_ts_info, 5679 .get_priv_flags = i40e_get_priv_flags, 5680 .set_priv_flags = i40e_set_priv_flags, 5681 .get_per_queue_coalesce = i40e_get_per_queue_coalesce, 5682 .set_per_queue_coalesce = i40e_set_per_queue_coalesce, 5683 .get_link_ksettings = i40e_get_link_ksettings, 5684 .set_link_ksettings = i40e_set_link_ksettings, 5685 .get_fecparam = i40e_get_fec_param, 5686 .set_fecparam = i40e_set_fec_param, 5687 .flash_device = i40e_ddp_flash, 5688 }; 5689 5690 void i40e_set_ethtool_ops(struct net_device *netdev) 5691 { 5692 struct i40e_netdev_priv *np = netdev_priv(netdev); 5693 struct i40e_pf *pf = np->vsi->back; 5694 5695 if (!test_bit(__I40E_RECOVERY_MODE, pf->state)) 5696 netdev->ethtool_ops = &i40e_ethtool_ops; 5697 else 5698 netdev->ethtool_ops = &i40e_ethtool_recovery_mode_ops; 5699 } 5700