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 I40E_VSI_STAT("rx_cache_alloc", rx_page_alloc), 300 I40E_VSI_STAT("rx_cache_waive", rx_page_waive), 301 I40E_VSI_STAT("rx_cache_busy", rx_page_busy), 302 }; 303 304 /* These PF_STATs might look like duplicates of some NETDEV_STATs, 305 * but they are separate. This device supports Virtualization, and 306 * as such might have several netdevs supporting VMDq and FCoE going 307 * through a single port. The NETDEV_STATs are for individual netdevs 308 * seen at the top of the stack, and the PF_STATs are for the physical 309 * function at the bottom of the stack hosting those netdevs. 310 * 311 * The PF_STATs are appended to the netdev stats only when ethtool -S 312 * is queried on the base PF netdev, not on the VMDq or FCoE netdev. 313 */ 314 static const struct i40e_stats i40e_gstrings_stats[] = { 315 I40E_PF_STAT("port.rx_bytes", stats.eth.rx_bytes), 316 I40E_PF_STAT("port.tx_bytes", stats.eth.tx_bytes), 317 I40E_PF_STAT("port.rx_unicast", stats.eth.rx_unicast), 318 I40E_PF_STAT("port.tx_unicast", stats.eth.tx_unicast), 319 I40E_PF_STAT("port.rx_multicast", stats.eth.rx_multicast), 320 I40E_PF_STAT("port.tx_multicast", stats.eth.tx_multicast), 321 I40E_PF_STAT("port.rx_broadcast", stats.eth.rx_broadcast), 322 I40E_PF_STAT("port.tx_broadcast", stats.eth.tx_broadcast), 323 I40E_PF_STAT("port.tx_errors", stats.eth.tx_errors), 324 I40E_PF_STAT("port.rx_dropped", stats.eth.rx_discards), 325 I40E_PF_STAT("port.tx_dropped_link_down", stats.tx_dropped_link_down), 326 I40E_PF_STAT("port.rx_crc_errors", stats.crc_errors), 327 I40E_PF_STAT("port.illegal_bytes", stats.illegal_bytes), 328 I40E_PF_STAT("port.mac_local_faults", stats.mac_local_faults), 329 I40E_PF_STAT("port.mac_remote_faults", stats.mac_remote_faults), 330 I40E_PF_STAT("port.tx_timeout", tx_timeout_count), 331 I40E_PF_STAT("port.rx_csum_bad", hw_csum_rx_error), 332 I40E_PF_STAT("port.rx_length_errors", stats.rx_length_errors), 333 I40E_PF_STAT("port.link_xon_rx", stats.link_xon_rx), 334 I40E_PF_STAT("port.link_xoff_rx", stats.link_xoff_rx), 335 I40E_PF_STAT("port.link_xon_tx", stats.link_xon_tx), 336 I40E_PF_STAT("port.link_xoff_tx", stats.link_xoff_tx), 337 I40E_PF_STAT("port.rx_size_64", stats.rx_size_64), 338 I40E_PF_STAT("port.rx_size_127", stats.rx_size_127), 339 I40E_PF_STAT("port.rx_size_255", stats.rx_size_255), 340 I40E_PF_STAT("port.rx_size_511", stats.rx_size_511), 341 I40E_PF_STAT("port.rx_size_1023", stats.rx_size_1023), 342 I40E_PF_STAT("port.rx_size_1522", stats.rx_size_1522), 343 I40E_PF_STAT("port.rx_size_big", stats.rx_size_big), 344 I40E_PF_STAT("port.tx_size_64", stats.tx_size_64), 345 I40E_PF_STAT("port.tx_size_127", stats.tx_size_127), 346 I40E_PF_STAT("port.tx_size_255", stats.tx_size_255), 347 I40E_PF_STAT("port.tx_size_511", stats.tx_size_511), 348 I40E_PF_STAT("port.tx_size_1023", stats.tx_size_1023), 349 I40E_PF_STAT("port.tx_size_1522", stats.tx_size_1522), 350 I40E_PF_STAT("port.tx_size_big", stats.tx_size_big), 351 I40E_PF_STAT("port.rx_undersize", stats.rx_undersize), 352 I40E_PF_STAT("port.rx_fragments", stats.rx_fragments), 353 I40E_PF_STAT("port.rx_oversize", stats.rx_oversize), 354 I40E_PF_STAT("port.rx_jabber", stats.rx_jabber), 355 I40E_PF_STAT("port.VF_admin_queue_requests", vf_aq_requests), 356 I40E_PF_STAT("port.arq_overflows", arq_overflows), 357 I40E_PF_STAT("port.tx_hwtstamp_timeouts", tx_hwtstamp_timeouts), 358 I40E_PF_STAT("port.rx_hwtstamp_cleared", rx_hwtstamp_cleared), 359 I40E_PF_STAT("port.tx_hwtstamp_skipped", tx_hwtstamp_skipped), 360 I40E_PF_STAT("port.fdir_flush_cnt", fd_flush_cnt), 361 I40E_PF_STAT("port.fdir_atr_match", stats.fd_atr_match), 362 I40E_PF_STAT("port.fdir_atr_tunnel_match", stats.fd_atr_tunnel_match), 363 I40E_PF_STAT("port.fdir_atr_status", stats.fd_atr_status), 364 I40E_PF_STAT("port.fdir_sb_match", stats.fd_sb_match), 365 I40E_PF_STAT("port.fdir_sb_status", stats.fd_sb_status), 366 367 /* LPI stats */ 368 I40E_PF_STAT("port.tx_lpi_status", stats.tx_lpi_status), 369 I40E_PF_STAT("port.rx_lpi_status", stats.rx_lpi_status), 370 I40E_PF_STAT("port.tx_lpi_count", stats.tx_lpi_count), 371 I40E_PF_STAT("port.rx_lpi_count", stats.rx_lpi_count), 372 }; 373 374 struct i40e_pfc_stats { 375 u64 priority_xon_rx; 376 u64 priority_xoff_rx; 377 u64 priority_xon_tx; 378 u64 priority_xoff_tx; 379 u64 priority_xon_2_xoff; 380 }; 381 382 static const struct i40e_stats i40e_gstrings_pfc_stats[] = { 383 I40E_PFC_STAT("port.tx_priority_%u_xon_tx", priority_xon_tx), 384 I40E_PFC_STAT("port.tx_priority_%u_xoff_tx", priority_xoff_tx), 385 I40E_PFC_STAT("port.rx_priority_%u_xon_rx", priority_xon_rx), 386 I40E_PFC_STAT("port.rx_priority_%u_xoff_rx", priority_xoff_rx), 387 I40E_PFC_STAT("port.rx_priority_%u_xon_2_xoff", priority_xon_2_xoff), 388 }; 389 390 #define I40E_NETDEV_STATS_LEN ARRAY_SIZE(i40e_gstrings_net_stats) 391 392 #define I40E_MISC_STATS_LEN ARRAY_SIZE(i40e_gstrings_misc_stats) 393 394 #define I40E_VSI_STATS_LEN (I40E_NETDEV_STATS_LEN + I40E_MISC_STATS_LEN) 395 396 #define I40E_PFC_STATS_LEN (ARRAY_SIZE(i40e_gstrings_pfc_stats) * \ 397 I40E_MAX_USER_PRIORITY) 398 399 #define I40E_VEB_STATS_LEN (ARRAY_SIZE(i40e_gstrings_veb_stats) + \ 400 (ARRAY_SIZE(i40e_gstrings_veb_tc_stats) * \ 401 I40E_MAX_TRAFFIC_CLASS)) 402 403 #define I40E_GLOBAL_STATS_LEN ARRAY_SIZE(i40e_gstrings_stats) 404 405 #define I40E_PF_STATS_LEN (I40E_GLOBAL_STATS_LEN + \ 406 I40E_PFC_STATS_LEN + \ 407 I40E_VEB_STATS_LEN + \ 408 I40E_VSI_STATS_LEN) 409 410 /* Length of stats for a single queue */ 411 #define I40E_QUEUE_STATS_LEN ARRAY_SIZE(i40e_gstrings_queue_stats) 412 413 enum i40e_ethtool_test_id { 414 I40E_ETH_TEST_REG = 0, 415 I40E_ETH_TEST_EEPROM, 416 I40E_ETH_TEST_INTR, 417 I40E_ETH_TEST_LINK, 418 }; 419 420 static const char i40e_gstrings_test[][ETH_GSTRING_LEN] = { 421 "Register test (offline)", 422 "Eeprom test (offline)", 423 "Interrupt test (offline)", 424 "Link test (on/offline)" 425 }; 426 427 #define I40E_TEST_LEN (sizeof(i40e_gstrings_test) / ETH_GSTRING_LEN) 428 429 struct i40e_priv_flags { 430 char flag_string[ETH_GSTRING_LEN]; 431 u64 flag; 432 bool read_only; 433 }; 434 435 #define I40E_PRIV_FLAG(_name, _flag, _read_only) { \ 436 .flag_string = _name, \ 437 .flag = _flag, \ 438 .read_only = _read_only, \ 439 } 440 441 static const struct i40e_priv_flags i40e_gstrings_priv_flags[] = { 442 /* NOTE: MFP setting cannot be changed */ 443 I40E_PRIV_FLAG("MFP", I40E_FLAG_MFP_ENABLED, 1), 444 I40E_PRIV_FLAG("total-port-shutdown", 445 I40E_FLAG_TOTAL_PORT_SHUTDOWN_ENABLED, 1), 446 I40E_PRIV_FLAG("LinkPolling", I40E_FLAG_LINK_POLLING_ENABLED, 0), 447 I40E_PRIV_FLAG("flow-director-atr", I40E_FLAG_FD_ATR_ENABLED, 0), 448 I40E_PRIV_FLAG("veb-stats", I40E_FLAG_VEB_STATS_ENABLED, 0), 449 I40E_PRIV_FLAG("hw-atr-eviction", I40E_FLAG_HW_ATR_EVICT_ENABLED, 0), 450 I40E_PRIV_FLAG("link-down-on-close", 451 I40E_FLAG_LINK_DOWN_ON_CLOSE_ENABLED, 0), 452 I40E_PRIV_FLAG("legacy-rx", I40E_FLAG_LEGACY_RX, 0), 453 I40E_PRIV_FLAG("disable-source-pruning", 454 I40E_FLAG_SOURCE_PRUNING_DISABLED, 0), 455 I40E_PRIV_FLAG("disable-fw-lldp", I40E_FLAG_DISABLE_FW_LLDP, 0), 456 I40E_PRIV_FLAG("rs-fec", I40E_FLAG_RS_FEC, 0), 457 I40E_PRIV_FLAG("base-r-fec", I40E_FLAG_BASE_R_FEC, 0), 458 }; 459 460 #define I40E_PRIV_FLAGS_STR_LEN ARRAY_SIZE(i40e_gstrings_priv_flags) 461 462 /* Private flags with a global effect, restricted to PF 0 */ 463 static const struct i40e_priv_flags i40e_gl_gstrings_priv_flags[] = { 464 I40E_PRIV_FLAG("vf-true-promisc-support", 465 I40E_FLAG_TRUE_PROMISC_SUPPORT, 0), 466 }; 467 468 #define I40E_GL_PRIV_FLAGS_STR_LEN ARRAY_SIZE(i40e_gl_gstrings_priv_flags) 469 470 /** 471 * i40e_partition_setting_complaint - generic complaint for MFP restriction 472 * @pf: the PF struct 473 **/ 474 static void i40e_partition_setting_complaint(struct i40e_pf *pf) 475 { 476 dev_info(&pf->pdev->dev, 477 "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"); 478 } 479 480 /** 481 * i40e_phy_type_to_ethtool - convert the phy_types to ethtool link modes 482 * @pf: PF struct with phy_types 483 * @ks: ethtool link ksettings struct to fill out 484 * 485 **/ 486 static void i40e_phy_type_to_ethtool(struct i40e_pf *pf, 487 struct ethtool_link_ksettings *ks) 488 { 489 struct i40e_link_status *hw_link_info = &pf->hw.phy.link_info; 490 u64 phy_types = pf->hw.phy.phy_types; 491 492 ethtool_link_ksettings_zero_link_mode(ks, supported); 493 ethtool_link_ksettings_zero_link_mode(ks, advertising); 494 495 if (phy_types & I40E_CAP_PHY_TYPE_SGMII) { 496 ethtool_link_ksettings_add_link_mode(ks, supported, 497 1000baseT_Full); 498 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_1GB) 499 ethtool_link_ksettings_add_link_mode(ks, advertising, 500 1000baseT_Full); 501 if (pf->hw_features & I40E_HW_100M_SGMII_CAPABLE) { 502 ethtool_link_ksettings_add_link_mode(ks, supported, 503 100baseT_Full); 504 ethtool_link_ksettings_add_link_mode(ks, advertising, 505 100baseT_Full); 506 } 507 } 508 if (phy_types & I40E_CAP_PHY_TYPE_XAUI || 509 phy_types & I40E_CAP_PHY_TYPE_XFI || 510 phy_types & I40E_CAP_PHY_TYPE_SFI || 511 phy_types & I40E_CAP_PHY_TYPE_10GBASE_SFPP_CU || 512 phy_types & I40E_CAP_PHY_TYPE_10GBASE_AOC) { 513 ethtool_link_ksettings_add_link_mode(ks, supported, 514 10000baseT_Full); 515 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_10GB) 516 ethtool_link_ksettings_add_link_mode(ks, advertising, 517 10000baseT_Full); 518 } 519 if (phy_types & I40E_CAP_PHY_TYPE_10GBASE_T) { 520 ethtool_link_ksettings_add_link_mode(ks, supported, 521 10000baseT_Full); 522 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_10GB) 523 ethtool_link_ksettings_add_link_mode(ks, advertising, 524 10000baseT_Full); 525 } 526 if (phy_types & I40E_CAP_PHY_TYPE_2_5GBASE_T) { 527 ethtool_link_ksettings_add_link_mode(ks, supported, 528 2500baseT_Full); 529 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_2_5GB) 530 ethtool_link_ksettings_add_link_mode(ks, advertising, 531 2500baseT_Full); 532 } 533 if (phy_types & I40E_CAP_PHY_TYPE_5GBASE_T) { 534 ethtool_link_ksettings_add_link_mode(ks, supported, 535 5000baseT_Full); 536 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_5GB) 537 ethtool_link_ksettings_add_link_mode(ks, advertising, 538 5000baseT_Full); 539 } 540 if (phy_types & I40E_CAP_PHY_TYPE_XLAUI || 541 phy_types & I40E_CAP_PHY_TYPE_XLPPI || 542 phy_types & I40E_CAP_PHY_TYPE_40GBASE_AOC) 543 ethtool_link_ksettings_add_link_mode(ks, supported, 544 40000baseCR4_Full); 545 if (phy_types & I40E_CAP_PHY_TYPE_40GBASE_CR4_CU || 546 phy_types & I40E_CAP_PHY_TYPE_40GBASE_CR4) { 547 ethtool_link_ksettings_add_link_mode(ks, supported, 548 40000baseCR4_Full); 549 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_40GB) 550 ethtool_link_ksettings_add_link_mode(ks, advertising, 551 40000baseCR4_Full); 552 } 553 if (phy_types & I40E_CAP_PHY_TYPE_100BASE_TX) { 554 ethtool_link_ksettings_add_link_mode(ks, supported, 555 100baseT_Full); 556 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_100MB) 557 ethtool_link_ksettings_add_link_mode(ks, advertising, 558 100baseT_Full); 559 } 560 if (phy_types & I40E_CAP_PHY_TYPE_1000BASE_T) { 561 ethtool_link_ksettings_add_link_mode(ks, supported, 562 1000baseT_Full); 563 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_1GB) 564 ethtool_link_ksettings_add_link_mode(ks, advertising, 565 1000baseT_Full); 566 } 567 if (phy_types & I40E_CAP_PHY_TYPE_40GBASE_SR4) { 568 ethtool_link_ksettings_add_link_mode(ks, supported, 569 40000baseSR4_Full); 570 ethtool_link_ksettings_add_link_mode(ks, advertising, 571 40000baseSR4_Full); 572 } 573 if (phy_types & I40E_CAP_PHY_TYPE_40GBASE_LR4) { 574 ethtool_link_ksettings_add_link_mode(ks, supported, 575 40000baseLR4_Full); 576 ethtool_link_ksettings_add_link_mode(ks, advertising, 577 40000baseLR4_Full); 578 } 579 if (phy_types & I40E_CAP_PHY_TYPE_40GBASE_KR4) { 580 ethtool_link_ksettings_add_link_mode(ks, supported, 581 40000baseKR4_Full); 582 ethtool_link_ksettings_add_link_mode(ks, advertising, 583 40000baseKR4_Full); 584 } 585 if (phy_types & I40E_CAP_PHY_TYPE_20GBASE_KR2) { 586 ethtool_link_ksettings_add_link_mode(ks, supported, 587 20000baseKR2_Full); 588 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_20GB) 589 ethtool_link_ksettings_add_link_mode(ks, advertising, 590 20000baseKR2_Full); 591 } 592 if (phy_types & I40E_CAP_PHY_TYPE_10GBASE_KX4) { 593 ethtool_link_ksettings_add_link_mode(ks, supported, 594 10000baseKX4_Full); 595 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_10GB) 596 ethtool_link_ksettings_add_link_mode(ks, advertising, 597 10000baseKX4_Full); 598 } 599 if (phy_types & I40E_CAP_PHY_TYPE_10GBASE_KR && 600 !(pf->hw_features & I40E_HW_HAVE_CRT_RETIMER)) { 601 ethtool_link_ksettings_add_link_mode(ks, supported, 602 10000baseKR_Full); 603 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_10GB) 604 ethtool_link_ksettings_add_link_mode(ks, advertising, 605 10000baseKR_Full); 606 } 607 if (phy_types & I40E_CAP_PHY_TYPE_1000BASE_KX && 608 !(pf->hw_features & I40E_HW_HAVE_CRT_RETIMER)) { 609 ethtool_link_ksettings_add_link_mode(ks, supported, 610 1000baseKX_Full); 611 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_1GB) 612 ethtool_link_ksettings_add_link_mode(ks, advertising, 613 1000baseKX_Full); 614 } 615 /* need to add 25G PHY types */ 616 if (phy_types & I40E_CAP_PHY_TYPE_25GBASE_KR) { 617 ethtool_link_ksettings_add_link_mode(ks, supported, 618 25000baseKR_Full); 619 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_25GB) 620 ethtool_link_ksettings_add_link_mode(ks, advertising, 621 25000baseKR_Full); 622 } 623 if (phy_types & I40E_CAP_PHY_TYPE_25GBASE_CR) { 624 ethtool_link_ksettings_add_link_mode(ks, supported, 625 25000baseCR_Full); 626 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_25GB) 627 ethtool_link_ksettings_add_link_mode(ks, advertising, 628 25000baseCR_Full); 629 } 630 if (phy_types & I40E_CAP_PHY_TYPE_25GBASE_SR || 631 phy_types & I40E_CAP_PHY_TYPE_25GBASE_LR) { 632 ethtool_link_ksettings_add_link_mode(ks, supported, 633 25000baseSR_Full); 634 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_25GB) 635 ethtool_link_ksettings_add_link_mode(ks, advertising, 636 25000baseSR_Full); 637 } 638 if (phy_types & I40E_CAP_PHY_TYPE_25GBASE_AOC || 639 phy_types & I40E_CAP_PHY_TYPE_25GBASE_ACC) { 640 ethtool_link_ksettings_add_link_mode(ks, supported, 641 25000baseCR_Full); 642 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_25GB) 643 ethtool_link_ksettings_add_link_mode(ks, advertising, 644 25000baseCR_Full); 645 } 646 if (phy_types & I40E_CAP_PHY_TYPE_25GBASE_KR || 647 phy_types & I40E_CAP_PHY_TYPE_25GBASE_CR || 648 phy_types & I40E_CAP_PHY_TYPE_25GBASE_SR || 649 phy_types & I40E_CAP_PHY_TYPE_25GBASE_LR || 650 phy_types & I40E_CAP_PHY_TYPE_25GBASE_AOC || 651 phy_types & I40E_CAP_PHY_TYPE_25GBASE_ACC) { 652 ethtool_link_ksettings_add_link_mode(ks, supported, FEC_NONE); 653 ethtool_link_ksettings_add_link_mode(ks, supported, FEC_RS); 654 ethtool_link_ksettings_add_link_mode(ks, supported, FEC_BASER); 655 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_25GB) { 656 ethtool_link_ksettings_add_link_mode(ks, advertising, 657 FEC_NONE); 658 ethtool_link_ksettings_add_link_mode(ks, advertising, 659 FEC_RS); 660 ethtool_link_ksettings_add_link_mode(ks, advertising, 661 FEC_BASER); 662 } 663 } 664 /* need to add new 10G PHY types */ 665 if (phy_types & I40E_CAP_PHY_TYPE_10GBASE_CR1 || 666 phy_types & I40E_CAP_PHY_TYPE_10GBASE_CR1_CU) { 667 ethtool_link_ksettings_add_link_mode(ks, supported, 668 10000baseCR_Full); 669 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_10GB) 670 ethtool_link_ksettings_add_link_mode(ks, advertising, 671 10000baseCR_Full); 672 } 673 if (phy_types & I40E_CAP_PHY_TYPE_10GBASE_SR) { 674 ethtool_link_ksettings_add_link_mode(ks, supported, 675 10000baseSR_Full); 676 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_10GB) 677 ethtool_link_ksettings_add_link_mode(ks, advertising, 678 10000baseSR_Full); 679 } 680 if (phy_types & I40E_CAP_PHY_TYPE_10GBASE_LR) { 681 ethtool_link_ksettings_add_link_mode(ks, supported, 682 10000baseLR_Full); 683 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_10GB) 684 ethtool_link_ksettings_add_link_mode(ks, advertising, 685 10000baseLR_Full); 686 } 687 if (phy_types & I40E_CAP_PHY_TYPE_1000BASE_SX || 688 phy_types & I40E_CAP_PHY_TYPE_1000BASE_LX || 689 phy_types & I40E_CAP_PHY_TYPE_1000BASE_T_OPTICAL) { 690 ethtool_link_ksettings_add_link_mode(ks, supported, 691 1000baseX_Full); 692 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_1GB) 693 ethtool_link_ksettings_add_link_mode(ks, advertising, 694 1000baseX_Full); 695 } 696 /* Autoneg PHY types */ 697 if (phy_types & I40E_CAP_PHY_TYPE_SGMII || 698 phy_types & I40E_CAP_PHY_TYPE_40GBASE_KR4 || 699 phy_types & I40E_CAP_PHY_TYPE_40GBASE_CR4_CU || 700 phy_types & I40E_CAP_PHY_TYPE_40GBASE_CR4 || 701 phy_types & I40E_CAP_PHY_TYPE_25GBASE_SR || 702 phy_types & I40E_CAP_PHY_TYPE_25GBASE_LR || 703 phy_types & I40E_CAP_PHY_TYPE_25GBASE_KR || 704 phy_types & I40E_CAP_PHY_TYPE_25GBASE_CR || 705 phy_types & I40E_CAP_PHY_TYPE_20GBASE_KR2 || 706 phy_types & I40E_CAP_PHY_TYPE_10GBASE_SR || 707 phy_types & I40E_CAP_PHY_TYPE_10GBASE_LR || 708 phy_types & I40E_CAP_PHY_TYPE_10GBASE_KX4 || 709 phy_types & I40E_CAP_PHY_TYPE_10GBASE_KR || 710 phy_types & I40E_CAP_PHY_TYPE_10GBASE_CR1_CU || 711 phy_types & I40E_CAP_PHY_TYPE_10GBASE_CR1 || 712 phy_types & I40E_CAP_PHY_TYPE_10GBASE_T || 713 phy_types & I40E_CAP_PHY_TYPE_5GBASE_T || 714 phy_types & I40E_CAP_PHY_TYPE_2_5GBASE_T || 715 phy_types & I40E_CAP_PHY_TYPE_1000BASE_T_OPTICAL || 716 phy_types & I40E_CAP_PHY_TYPE_1000BASE_T || 717 phy_types & I40E_CAP_PHY_TYPE_1000BASE_SX || 718 phy_types & I40E_CAP_PHY_TYPE_1000BASE_LX || 719 phy_types & I40E_CAP_PHY_TYPE_1000BASE_KX || 720 phy_types & I40E_CAP_PHY_TYPE_100BASE_TX) { 721 ethtool_link_ksettings_add_link_mode(ks, supported, 722 Autoneg); 723 ethtool_link_ksettings_add_link_mode(ks, advertising, 724 Autoneg); 725 } 726 } 727 728 /** 729 * i40e_get_settings_link_up_fec - Get the FEC mode encoding from mask 730 * @req_fec_info: mask request FEC info 731 * @ks: ethtool ksettings to fill in 732 **/ 733 static void i40e_get_settings_link_up_fec(u8 req_fec_info, 734 struct ethtool_link_ksettings *ks) 735 { 736 ethtool_link_ksettings_add_link_mode(ks, supported, FEC_NONE); 737 ethtool_link_ksettings_add_link_mode(ks, supported, FEC_RS); 738 ethtool_link_ksettings_add_link_mode(ks, supported, FEC_BASER); 739 740 if ((I40E_AQ_SET_FEC_REQUEST_RS & req_fec_info) && 741 (I40E_AQ_SET_FEC_REQUEST_KR & req_fec_info)) { 742 ethtool_link_ksettings_add_link_mode(ks, advertising, 743 FEC_NONE); 744 ethtool_link_ksettings_add_link_mode(ks, advertising, 745 FEC_BASER); 746 ethtool_link_ksettings_add_link_mode(ks, advertising, FEC_RS); 747 } else if (I40E_AQ_SET_FEC_REQUEST_RS & req_fec_info) { 748 ethtool_link_ksettings_add_link_mode(ks, advertising, FEC_RS); 749 } else if (I40E_AQ_SET_FEC_REQUEST_KR & req_fec_info) { 750 ethtool_link_ksettings_add_link_mode(ks, advertising, 751 FEC_BASER); 752 } else { 753 ethtool_link_ksettings_add_link_mode(ks, advertising, 754 FEC_NONE); 755 } 756 } 757 758 /** 759 * i40e_get_settings_link_up - Get the Link settings for when link is up 760 * @hw: hw structure 761 * @ks: ethtool ksettings to fill in 762 * @netdev: network interface device structure 763 * @pf: pointer to physical function struct 764 **/ 765 static void i40e_get_settings_link_up(struct i40e_hw *hw, 766 struct ethtool_link_ksettings *ks, 767 struct net_device *netdev, 768 struct i40e_pf *pf) 769 { 770 struct i40e_link_status *hw_link_info = &hw->phy.link_info; 771 struct ethtool_link_ksettings cap_ksettings; 772 u32 link_speed = hw_link_info->link_speed; 773 774 /* Initialize supported and advertised settings based on phy settings */ 775 switch (hw_link_info->phy_type) { 776 case I40E_PHY_TYPE_40GBASE_CR4: 777 case I40E_PHY_TYPE_40GBASE_CR4_CU: 778 ethtool_link_ksettings_add_link_mode(ks, supported, Autoneg); 779 ethtool_link_ksettings_add_link_mode(ks, supported, 780 40000baseCR4_Full); 781 ethtool_link_ksettings_add_link_mode(ks, advertising, Autoneg); 782 ethtool_link_ksettings_add_link_mode(ks, advertising, 783 40000baseCR4_Full); 784 break; 785 case I40E_PHY_TYPE_XLAUI: 786 case I40E_PHY_TYPE_XLPPI: 787 case I40E_PHY_TYPE_40GBASE_AOC: 788 ethtool_link_ksettings_add_link_mode(ks, supported, 789 40000baseCR4_Full); 790 ethtool_link_ksettings_add_link_mode(ks, advertising, 791 40000baseCR4_Full); 792 break; 793 case I40E_PHY_TYPE_40GBASE_SR4: 794 ethtool_link_ksettings_add_link_mode(ks, supported, 795 40000baseSR4_Full); 796 ethtool_link_ksettings_add_link_mode(ks, advertising, 797 40000baseSR4_Full); 798 break; 799 case I40E_PHY_TYPE_40GBASE_LR4: 800 ethtool_link_ksettings_add_link_mode(ks, supported, 801 40000baseLR4_Full); 802 ethtool_link_ksettings_add_link_mode(ks, advertising, 803 40000baseLR4_Full); 804 break; 805 case I40E_PHY_TYPE_25GBASE_SR: 806 case I40E_PHY_TYPE_25GBASE_LR: 807 case I40E_PHY_TYPE_10GBASE_SR: 808 case I40E_PHY_TYPE_10GBASE_LR: 809 case I40E_PHY_TYPE_1000BASE_SX: 810 case I40E_PHY_TYPE_1000BASE_LX: 811 ethtool_link_ksettings_add_link_mode(ks, supported, Autoneg); 812 ethtool_link_ksettings_add_link_mode(ks, advertising, Autoneg); 813 ethtool_link_ksettings_add_link_mode(ks, supported, 814 25000baseSR_Full); 815 ethtool_link_ksettings_add_link_mode(ks, advertising, 816 25000baseSR_Full); 817 i40e_get_settings_link_up_fec(hw_link_info->req_fec_info, ks); 818 ethtool_link_ksettings_add_link_mode(ks, supported, 819 10000baseSR_Full); 820 ethtool_link_ksettings_add_link_mode(ks, advertising, 821 10000baseSR_Full); 822 ethtool_link_ksettings_add_link_mode(ks, supported, 823 10000baseLR_Full); 824 ethtool_link_ksettings_add_link_mode(ks, advertising, 825 10000baseLR_Full); 826 ethtool_link_ksettings_add_link_mode(ks, supported, 827 1000baseX_Full); 828 ethtool_link_ksettings_add_link_mode(ks, advertising, 829 1000baseX_Full); 830 ethtool_link_ksettings_add_link_mode(ks, supported, 831 10000baseT_Full); 832 if (hw_link_info->module_type[2] & 833 I40E_MODULE_TYPE_1000BASE_SX || 834 hw_link_info->module_type[2] & 835 I40E_MODULE_TYPE_1000BASE_LX) { 836 ethtool_link_ksettings_add_link_mode(ks, supported, 837 1000baseT_Full); 838 if (hw_link_info->requested_speeds & 839 I40E_LINK_SPEED_1GB) 840 ethtool_link_ksettings_add_link_mode( 841 ks, advertising, 1000baseT_Full); 842 } 843 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_10GB) 844 ethtool_link_ksettings_add_link_mode(ks, advertising, 845 10000baseT_Full); 846 break; 847 case I40E_PHY_TYPE_10GBASE_T: 848 case I40E_PHY_TYPE_5GBASE_T_LINK_STATUS: 849 case I40E_PHY_TYPE_2_5GBASE_T_LINK_STATUS: 850 case I40E_PHY_TYPE_1000BASE_T: 851 case I40E_PHY_TYPE_100BASE_TX: 852 ethtool_link_ksettings_add_link_mode(ks, supported, Autoneg); 853 ethtool_link_ksettings_add_link_mode(ks, supported, 854 10000baseT_Full); 855 ethtool_link_ksettings_add_link_mode(ks, supported, 856 5000baseT_Full); 857 ethtool_link_ksettings_add_link_mode(ks, supported, 858 2500baseT_Full); 859 ethtool_link_ksettings_add_link_mode(ks, supported, 860 1000baseT_Full); 861 ethtool_link_ksettings_add_link_mode(ks, supported, 862 100baseT_Full); 863 ethtool_link_ksettings_add_link_mode(ks, advertising, Autoneg); 864 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_10GB) 865 ethtool_link_ksettings_add_link_mode(ks, advertising, 866 10000baseT_Full); 867 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_5GB) 868 ethtool_link_ksettings_add_link_mode(ks, advertising, 869 5000baseT_Full); 870 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_2_5GB) 871 ethtool_link_ksettings_add_link_mode(ks, advertising, 872 2500baseT_Full); 873 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_1GB) 874 ethtool_link_ksettings_add_link_mode(ks, advertising, 875 1000baseT_Full); 876 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_100MB) 877 ethtool_link_ksettings_add_link_mode(ks, advertising, 878 100baseT_Full); 879 break; 880 case I40E_PHY_TYPE_1000BASE_T_OPTICAL: 881 ethtool_link_ksettings_add_link_mode(ks, supported, Autoneg); 882 ethtool_link_ksettings_add_link_mode(ks, supported, 883 1000baseT_Full); 884 ethtool_link_ksettings_add_link_mode(ks, advertising, Autoneg); 885 ethtool_link_ksettings_add_link_mode(ks, advertising, 886 1000baseT_Full); 887 break; 888 case I40E_PHY_TYPE_10GBASE_CR1_CU: 889 case I40E_PHY_TYPE_10GBASE_CR1: 890 ethtool_link_ksettings_add_link_mode(ks, supported, Autoneg); 891 ethtool_link_ksettings_add_link_mode(ks, supported, 892 10000baseT_Full); 893 ethtool_link_ksettings_add_link_mode(ks, advertising, Autoneg); 894 ethtool_link_ksettings_add_link_mode(ks, advertising, 895 10000baseT_Full); 896 break; 897 case I40E_PHY_TYPE_XAUI: 898 case I40E_PHY_TYPE_XFI: 899 case I40E_PHY_TYPE_SFI: 900 case I40E_PHY_TYPE_10GBASE_SFPP_CU: 901 case I40E_PHY_TYPE_10GBASE_AOC: 902 ethtool_link_ksettings_add_link_mode(ks, supported, 903 10000baseT_Full); 904 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_10GB) 905 ethtool_link_ksettings_add_link_mode(ks, advertising, 906 10000baseT_Full); 907 i40e_get_settings_link_up_fec(hw_link_info->req_fec_info, ks); 908 break; 909 case I40E_PHY_TYPE_SGMII: 910 ethtool_link_ksettings_add_link_mode(ks, supported, Autoneg); 911 ethtool_link_ksettings_add_link_mode(ks, supported, 912 1000baseT_Full); 913 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_1GB) 914 ethtool_link_ksettings_add_link_mode(ks, advertising, 915 1000baseT_Full); 916 if (pf->hw_features & I40E_HW_100M_SGMII_CAPABLE) { 917 ethtool_link_ksettings_add_link_mode(ks, supported, 918 100baseT_Full); 919 if (hw_link_info->requested_speeds & 920 I40E_LINK_SPEED_100MB) 921 ethtool_link_ksettings_add_link_mode( 922 ks, advertising, 100baseT_Full); 923 } 924 break; 925 case I40E_PHY_TYPE_40GBASE_KR4: 926 case I40E_PHY_TYPE_25GBASE_KR: 927 case I40E_PHY_TYPE_20GBASE_KR2: 928 case I40E_PHY_TYPE_10GBASE_KR: 929 case I40E_PHY_TYPE_10GBASE_KX4: 930 case I40E_PHY_TYPE_1000BASE_KX: 931 ethtool_link_ksettings_add_link_mode(ks, supported, 932 40000baseKR4_Full); 933 ethtool_link_ksettings_add_link_mode(ks, supported, 934 25000baseKR_Full); 935 ethtool_link_ksettings_add_link_mode(ks, supported, 936 20000baseKR2_Full); 937 ethtool_link_ksettings_add_link_mode(ks, supported, 938 10000baseKR_Full); 939 ethtool_link_ksettings_add_link_mode(ks, supported, 940 10000baseKX4_Full); 941 ethtool_link_ksettings_add_link_mode(ks, supported, 942 1000baseKX_Full); 943 ethtool_link_ksettings_add_link_mode(ks, supported, Autoneg); 944 ethtool_link_ksettings_add_link_mode(ks, advertising, 945 40000baseKR4_Full); 946 ethtool_link_ksettings_add_link_mode(ks, advertising, 947 25000baseKR_Full); 948 i40e_get_settings_link_up_fec(hw_link_info->req_fec_info, ks); 949 ethtool_link_ksettings_add_link_mode(ks, advertising, 950 20000baseKR2_Full); 951 ethtool_link_ksettings_add_link_mode(ks, advertising, 952 10000baseKR_Full); 953 ethtool_link_ksettings_add_link_mode(ks, advertising, 954 10000baseKX4_Full); 955 ethtool_link_ksettings_add_link_mode(ks, advertising, 956 1000baseKX_Full); 957 ethtool_link_ksettings_add_link_mode(ks, advertising, Autoneg); 958 break; 959 case I40E_PHY_TYPE_25GBASE_CR: 960 ethtool_link_ksettings_add_link_mode(ks, supported, Autoneg); 961 ethtool_link_ksettings_add_link_mode(ks, advertising, Autoneg); 962 ethtool_link_ksettings_add_link_mode(ks, supported, 963 25000baseCR_Full); 964 ethtool_link_ksettings_add_link_mode(ks, advertising, 965 25000baseCR_Full); 966 i40e_get_settings_link_up_fec(hw_link_info->req_fec_info, ks); 967 968 break; 969 case I40E_PHY_TYPE_25GBASE_AOC: 970 case I40E_PHY_TYPE_25GBASE_ACC: 971 ethtool_link_ksettings_add_link_mode(ks, supported, Autoneg); 972 ethtool_link_ksettings_add_link_mode(ks, advertising, Autoneg); 973 ethtool_link_ksettings_add_link_mode(ks, supported, 974 25000baseCR_Full); 975 ethtool_link_ksettings_add_link_mode(ks, advertising, 976 25000baseCR_Full); 977 i40e_get_settings_link_up_fec(hw_link_info->req_fec_info, ks); 978 979 ethtool_link_ksettings_add_link_mode(ks, supported, 980 10000baseCR_Full); 981 ethtool_link_ksettings_add_link_mode(ks, advertising, 982 10000baseCR_Full); 983 break; 984 default: 985 /* if we got here and link is up something bad is afoot */ 986 netdev_info(netdev, 987 "WARNING: Link is up but PHY type 0x%x is not recognized, or incorrect cable is in use\n", 988 hw_link_info->phy_type); 989 } 990 991 /* Now that we've worked out everything that could be supported by the 992 * current PHY type, get what is supported by the NVM and intersect 993 * them to get what is truly supported 994 */ 995 memset(&cap_ksettings, 0, sizeof(struct ethtool_link_ksettings)); 996 i40e_phy_type_to_ethtool(pf, &cap_ksettings); 997 ethtool_intersect_link_masks(ks, &cap_ksettings); 998 999 /* Set speed and duplex */ 1000 switch (link_speed) { 1001 case I40E_LINK_SPEED_40GB: 1002 ks->base.speed = SPEED_40000; 1003 break; 1004 case I40E_LINK_SPEED_25GB: 1005 ks->base.speed = SPEED_25000; 1006 break; 1007 case I40E_LINK_SPEED_20GB: 1008 ks->base.speed = SPEED_20000; 1009 break; 1010 case I40E_LINK_SPEED_10GB: 1011 ks->base.speed = SPEED_10000; 1012 break; 1013 case I40E_LINK_SPEED_5GB: 1014 ks->base.speed = SPEED_5000; 1015 break; 1016 case I40E_LINK_SPEED_2_5GB: 1017 ks->base.speed = SPEED_2500; 1018 break; 1019 case I40E_LINK_SPEED_1GB: 1020 ks->base.speed = SPEED_1000; 1021 break; 1022 case I40E_LINK_SPEED_100MB: 1023 ks->base.speed = SPEED_100; 1024 break; 1025 default: 1026 ks->base.speed = SPEED_UNKNOWN; 1027 break; 1028 } 1029 ks->base.duplex = DUPLEX_FULL; 1030 } 1031 1032 /** 1033 * i40e_get_settings_link_down - Get the Link settings for when link is down 1034 * @hw: hw structure 1035 * @ks: ethtool ksettings to fill in 1036 * @pf: pointer to physical function struct 1037 * 1038 * Reports link settings that can be determined when link is down 1039 **/ 1040 static void i40e_get_settings_link_down(struct i40e_hw *hw, 1041 struct ethtool_link_ksettings *ks, 1042 struct i40e_pf *pf) 1043 { 1044 /* link is down and the driver needs to fall back on 1045 * supported phy types to figure out what info to display 1046 */ 1047 i40e_phy_type_to_ethtool(pf, ks); 1048 1049 /* With no link speed and duplex are unknown */ 1050 ks->base.speed = SPEED_UNKNOWN; 1051 ks->base.duplex = DUPLEX_UNKNOWN; 1052 } 1053 1054 /** 1055 * i40e_get_link_ksettings - Get Link Speed and Duplex settings 1056 * @netdev: network interface device structure 1057 * @ks: ethtool ksettings 1058 * 1059 * Reports speed/duplex settings based on media_type 1060 **/ 1061 static int i40e_get_link_ksettings(struct net_device *netdev, 1062 struct ethtool_link_ksettings *ks) 1063 { 1064 struct i40e_netdev_priv *np = netdev_priv(netdev); 1065 struct i40e_pf *pf = np->vsi->back; 1066 struct i40e_hw *hw = &pf->hw; 1067 struct i40e_link_status *hw_link_info = &hw->phy.link_info; 1068 bool link_up = hw_link_info->link_info & I40E_AQ_LINK_UP; 1069 1070 ethtool_link_ksettings_zero_link_mode(ks, supported); 1071 ethtool_link_ksettings_zero_link_mode(ks, advertising); 1072 1073 if (link_up) 1074 i40e_get_settings_link_up(hw, ks, netdev, pf); 1075 else 1076 i40e_get_settings_link_down(hw, ks, pf); 1077 1078 /* Now set the settings that don't rely on link being up/down */ 1079 /* Set autoneg settings */ 1080 ks->base.autoneg = ((hw_link_info->an_info & I40E_AQ_AN_COMPLETED) ? 1081 AUTONEG_ENABLE : AUTONEG_DISABLE); 1082 1083 /* Set media type settings */ 1084 switch (hw->phy.media_type) { 1085 case I40E_MEDIA_TYPE_BACKPLANE: 1086 ethtool_link_ksettings_add_link_mode(ks, supported, Autoneg); 1087 ethtool_link_ksettings_add_link_mode(ks, supported, Backplane); 1088 ethtool_link_ksettings_add_link_mode(ks, advertising, Autoneg); 1089 ethtool_link_ksettings_add_link_mode(ks, advertising, 1090 Backplane); 1091 ks->base.port = PORT_NONE; 1092 break; 1093 case I40E_MEDIA_TYPE_BASET: 1094 ethtool_link_ksettings_add_link_mode(ks, supported, TP); 1095 ethtool_link_ksettings_add_link_mode(ks, advertising, TP); 1096 ks->base.port = PORT_TP; 1097 break; 1098 case I40E_MEDIA_TYPE_DA: 1099 case I40E_MEDIA_TYPE_CX4: 1100 ethtool_link_ksettings_add_link_mode(ks, supported, FIBRE); 1101 ethtool_link_ksettings_add_link_mode(ks, advertising, FIBRE); 1102 ks->base.port = PORT_DA; 1103 break; 1104 case I40E_MEDIA_TYPE_FIBER: 1105 ethtool_link_ksettings_add_link_mode(ks, supported, FIBRE); 1106 ethtool_link_ksettings_add_link_mode(ks, advertising, FIBRE); 1107 ks->base.port = PORT_FIBRE; 1108 break; 1109 case I40E_MEDIA_TYPE_UNKNOWN: 1110 default: 1111 ks->base.port = PORT_OTHER; 1112 break; 1113 } 1114 1115 /* Set flow control settings */ 1116 ethtool_link_ksettings_add_link_mode(ks, supported, Pause); 1117 ethtool_link_ksettings_add_link_mode(ks, supported, Asym_Pause); 1118 1119 switch (hw->fc.requested_mode) { 1120 case I40E_FC_FULL: 1121 ethtool_link_ksettings_add_link_mode(ks, advertising, Pause); 1122 break; 1123 case I40E_FC_TX_PAUSE: 1124 ethtool_link_ksettings_add_link_mode(ks, advertising, 1125 Asym_Pause); 1126 break; 1127 case I40E_FC_RX_PAUSE: 1128 ethtool_link_ksettings_add_link_mode(ks, advertising, Pause); 1129 ethtool_link_ksettings_add_link_mode(ks, advertising, 1130 Asym_Pause); 1131 break; 1132 default: 1133 ethtool_link_ksettings_del_link_mode(ks, advertising, Pause); 1134 ethtool_link_ksettings_del_link_mode(ks, advertising, 1135 Asym_Pause); 1136 break; 1137 } 1138 1139 return 0; 1140 } 1141 1142 /** 1143 * i40e_set_link_ksettings - Set Speed and Duplex 1144 * @netdev: network interface device structure 1145 * @ks: ethtool ksettings 1146 * 1147 * Set speed/duplex per media_types advertised/forced 1148 **/ 1149 static int i40e_set_link_ksettings(struct net_device *netdev, 1150 const struct ethtool_link_ksettings *ks) 1151 { 1152 struct i40e_netdev_priv *np = netdev_priv(netdev); 1153 struct i40e_aq_get_phy_abilities_resp abilities; 1154 struct ethtool_link_ksettings safe_ks; 1155 struct ethtool_link_ksettings copy_ks; 1156 struct i40e_aq_set_phy_config config; 1157 struct i40e_pf *pf = np->vsi->back; 1158 struct i40e_vsi *vsi = np->vsi; 1159 struct i40e_hw *hw = &pf->hw; 1160 bool autoneg_changed = false; 1161 i40e_status status = 0; 1162 int timeout = 50; 1163 int err = 0; 1164 u8 autoneg; 1165 1166 /* Changing port settings is not supported if this isn't the 1167 * port's controlling PF 1168 */ 1169 if (hw->partition_id != 1) { 1170 i40e_partition_setting_complaint(pf); 1171 return -EOPNOTSUPP; 1172 } 1173 if (vsi != pf->vsi[pf->lan_vsi]) 1174 return -EOPNOTSUPP; 1175 if (hw->phy.media_type != I40E_MEDIA_TYPE_BASET && 1176 hw->phy.media_type != I40E_MEDIA_TYPE_FIBER && 1177 hw->phy.media_type != I40E_MEDIA_TYPE_BACKPLANE && 1178 hw->phy.media_type != I40E_MEDIA_TYPE_DA && 1179 hw->phy.link_info.link_info & I40E_AQ_LINK_UP) 1180 return -EOPNOTSUPP; 1181 if (hw->device_id == I40E_DEV_ID_KX_B || 1182 hw->device_id == I40E_DEV_ID_KX_C || 1183 hw->device_id == I40E_DEV_ID_20G_KR2 || 1184 hw->device_id == I40E_DEV_ID_20G_KR2_A || 1185 hw->device_id == I40E_DEV_ID_25G_B || 1186 hw->device_id == I40E_DEV_ID_KX_X722) { 1187 netdev_info(netdev, "Changing settings is not supported on backplane.\n"); 1188 return -EOPNOTSUPP; 1189 } 1190 1191 /* copy the ksettings to copy_ks to avoid modifying the origin */ 1192 memcpy(©_ks, ks, sizeof(struct ethtool_link_ksettings)); 1193 1194 /* save autoneg out of ksettings */ 1195 autoneg = copy_ks.base.autoneg; 1196 1197 /* get our own copy of the bits to check against */ 1198 memset(&safe_ks, 0, sizeof(struct ethtool_link_ksettings)); 1199 safe_ks.base.cmd = copy_ks.base.cmd; 1200 safe_ks.base.link_mode_masks_nwords = 1201 copy_ks.base.link_mode_masks_nwords; 1202 i40e_get_link_ksettings(netdev, &safe_ks); 1203 1204 /* Get link modes supported by hardware and check against modes 1205 * requested by the user. Return an error if unsupported mode was set. 1206 */ 1207 if (!bitmap_subset(copy_ks.link_modes.advertising, 1208 safe_ks.link_modes.supported, 1209 __ETHTOOL_LINK_MODE_MASK_NBITS)) 1210 return -EINVAL; 1211 1212 /* set autoneg back to what it currently is */ 1213 copy_ks.base.autoneg = safe_ks.base.autoneg; 1214 1215 /* If copy_ks.base and safe_ks.base are not the same now, then they are 1216 * trying to set something that we do not support. 1217 */ 1218 if (memcmp(©_ks.base, &safe_ks.base, 1219 sizeof(struct ethtool_link_settings))) 1220 return -EOPNOTSUPP; 1221 1222 while (test_and_set_bit(__I40E_CONFIG_BUSY, pf->state)) { 1223 timeout--; 1224 if (!timeout) 1225 return -EBUSY; 1226 usleep_range(1000, 2000); 1227 } 1228 1229 /* Get the current phy config */ 1230 status = i40e_aq_get_phy_capabilities(hw, false, false, &abilities, 1231 NULL); 1232 if (status) { 1233 err = -EAGAIN; 1234 goto done; 1235 } 1236 1237 /* Copy abilities to config in case autoneg is not 1238 * set below 1239 */ 1240 memset(&config, 0, sizeof(struct i40e_aq_set_phy_config)); 1241 config.abilities = abilities.abilities; 1242 1243 /* Check autoneg */ 1244 if (autoneg == AUTONEG_ENABLE) { 1245 /* If autoneg was not already enabled */ 1246 if (!(hw->phy.link_info.an_info & I40E_AQ_AN_COMPLETED)) { 1247 /* If autoneg is not supported, return error */ 1248 if (!ethtool_link_ksettings_test_link_mode(&safe_ks, 1249 supported, 1250 Autoneg)) { 1251 netdev_info(netdev, "Autoneg not supported on this phy\n"); 1252 err = -EINVAL; 1253 goto done; 1254 } 1255 /* Autoneg is allowed to change */ 1256 config.abilities = abilities.abilities | 1257 I40E_AQ_PHY_ENABLE_AN; 1258 autoneg_changed = true; 1259 } 1260 } else { 1261 /* If autoneg is currently enabled */ 1262 if (hw->phy.link_info.an_info & I40E_AQ_AN_COMPLETED) { 1263 /* If autoneg is supported 10GBASE_T is the only PHY 1264 * that can disable it, so otherwise return error 1265 */ 1266 if (ethtool_link_ksettings_test_link_mode(&safe_ks, 1267 supported, 1268 Autoneg) && 1269 hw->phy.media_type != I40E_MEDIA_TYPE_BASET) { 1270 netdev_info(netdev, "Autoneg cannot be disabled on this phy\n"); 1271 err = -EINVAL; 1272 goto done; 1273 } 1274 /* Autoneg is allowed to change */ 1275 config.abilities = abilities.abilities & 1276 ~I40E_AQ_PHY_ENABLE_AN; 1277 autoneg_changed = true; 1278 } 1279 } 1280 1281 if (ethtool_link_ksettings_test_link_mode(ks, advertising, 1282 100baseT_Full)) 1283 config.link_speed |= I40E_LINK_SPEED_100MB; 1284 if (ethtool_link_ksettings_test_link_mode(ks, advertising, 1285 1000baseT_Full) || 1286 ethtool_link_ksettings_test_link_mode(ks, advertising, 1287 1000baseX_Full) || 1288 ethtool_link_ksettings_test_link_mode(ks, advertising, 1289 1000baseKX_Full)) 1290 config.link_speed |= I40E_LINK_SPEED_1GB; 1291 if (ethtool_link_ksettings_test_link_mode(ks, advertising, 1292 10000baseT_Full) || 1293 ethtool_link_ksettings_test_link_mode(ks, advertising, 1294 10000baseKX4_Full) || 1295 ethtool_link_ksettings_test_link_mode(ks, advertising, 1296 10000baseKR_Full) || 1297 ethtool_link_ksettings_test_link_mode(ks, advertising, 1298 10000baseCR_Full) || 1299 ethtool_link_ksettings_test_link_mode(ks, advertising, 1300 10000baseSR_Full) || 1301 ethtool_link_ksettings_test_link_mode(ks, advertising, 1302 10000baseLR_Full)) 1303 config.link_speed |= I40E_LINK_SPEED_10GB; 1304 if (ethtool_link_ksettings_test_link_mode(ks, advertising, 1305 2500baseT_Full)) 1306 config.link_speed |= I40E_LINK_SPEED_2_5GB; 1307 if (ethtool_link_ksettings_test_link_mode(ks, advertising, 1308 5000baseT_Full)) 1309 config.link_speed |= I40E_LINK_SPEED_5GB; 1310 if (ethtool_link_ksettings_test_link_mode(ks, advertising, 1311 20000baseKR2_Full)) 1312 config.link_speed |= I40E_LINK_SPEED_20GB; 1313 if (ethtool_link_ksettings_test_link_mode(ks, advertising, 1314 25000baseCR_Full) || 1315 ethtool_link_ksettings_test_link_mode(ks, advertising, 1316 25000baseKR_Full) || 1317 ethtool_link_ksettings_test_link_mode(ks, advertising, 1318 25000baseSR_Full)) 1319 config.link_speed |= I40E_LINK_SPEED_25GB; 1320 if (ethtool_link_ksettings_test_link_mode(ks, advertising, 1321 40000baseKR4_Full) || 1322 ethtool_link_ksettings_test_link_mode(ks, advertising, 1323 40000baseCR4_Full) || 1324 ethtool_link_ksettings_test_link_mode(ks, advertising, 1325 40000baseSR4_Full) || 1326 ethtool_link_ksettings_test_link_mode(ks, advertising, 1327 40000baseLR4_Full)) 1328 config.link_speed |= I40E_LINK_SPEED_40GB; 1329 1330 /* If speed didn't get set, set it to what it currently is. 1331 * This is needed because if advertise is 0 (as it is when autoneg 1332 * is disabled) then speed won't get set. 1333 */ 1334 if (!config.link_speed) 1335 config.link_speed = abilities.link_speed; 1336 if (autoneg_changed || abilities.link_speed != config.link_speed) { 1337 /* copy over the rest of the abilities */ 1338 config.phy_type = abilities.phy_type; 1339 config.phy_type_ext = abilities.phy_type_ext; 1340 config.eee_capability = abilities.eee_capability; 1341 config.eeer = abilities.eeer_val; 1342 config.low_power_ctrl = abilities.d3_lpan; 1343 config.fec_config = abilities.fec_cfg_curr_mod_ext_info & 1344 I40E_AQ_PHY_FEC_CONFIG_MASK; 1345 1346 /* save the requested speeds */ 1347 hw->phy.link_info.requested_speeds = config.link_speed; 1348 /* set link and auto negotiation so changes take effect */ 1349 config.abilities |= I40E_AQ_PHY_ENABLE_ATOMIC_LINK; 1350 /* If link is up put link down */ 1351 if (hw->phy.link_info.link_info & I40E_AQ_LINK_UP) { 1352 /* Tell the OS link is going down, the link will go 1353 * back up when fw says it is ready asynchronously 1354 */ 1355 i40e_print_link_message(vsi, false); 1356 netif_carrier_off(netdev); 1357 netif_tx_stop_all_queues(netdev); 1358 } 1359 1360 /* make the aq call */ 1361 status = i40e_aq_set_phy_config(hw, &config, NULL); 1362 if (status) { 1363 netdev_info(netdev, 1364 "Set phy config failed, err %s aq_err %s\n", 1365 i40e_stat_str(hw, status), 1366 i40e_aq_str(hw, hw->aq.asq_last_status)); 1367 err = -EAGAIN; 1368 goto done; 1369 } 1370 1371 status = i40e_update_link_info(hw); 1372 if (status) 1373 netdev_dbg(netdev, 1374 "Updating link info failed with err %s aq_err %s\n", 1375 i40e_stat_str(hw, status), 1376 i40e_aq_str(hw, hw->aq.asq_last_status)); 1377 1378 } else { 1379 netdev_info(netdev, "Nothing changed, exiting without setting anything.\n"); 1380 } 1381 1382 done: 1383 clear_bit(__I40E_CONFIG_BUSY, pf->state); 1384 1385 return err; 1386 } 1387 1388 static int i40e_set_fec_cfg(struct net_device *netdev, u8 fec_cfg) 1389 { 1390 struct i40e_netdev_priv *np = netdev_priv(netdev); 1391 struct i40e_aq_get_phy_abilities_resp abilities; 1392 struct i40e_pf *pf = np->vsi->back; 1393 struct i40e_hw *hw = &pf->hw; 1394 i40e_status status = 0; 1395 u32 flags = 0; 1396 int err = 0; 1397 1398 flags = READ_ONCE(pf->flags); 1399 i40e_set_fec_in_flags(fec_cfg, &flags); 1400 1401 /* Get the current phy config */ 1402 memset(&abilities, 0, sizeof(abilities)); 1403 status = i40e_aq_get_phy_capabilities(hw, false, false, &abilities, 1404 NULL); 1405 if (status) { 1406 err = -EAGAIN; 1407 goto done; 1408 } 1409 1410 if (abilities.fec_cfg_curr_mod_ext_info != fec_cfg) { 1411 struct i40e_aq_set_phy_config config; 1412 1413 memset(&config, 0, sizeof(config)); 1414 config.phy_type = abilities.phy_type; 1415 config.abilities = abilities.abilities | 1416 I40E_AQ_PHY_ENABLE_ATOMIC_LINK; 1417 config.phy_type_ext = abilities.phy_type_ext; 1418 config.link_speed = abilities.link_speed; 1419 config.eee_capability = abilities.eee_capability; 1420 config.eeer = abilities.eeer_val; 1421 config.low_power_ctrl = abilities.d3_lpan; 1422 config.fec_config = fec_cfg & I40E_AQ_PHY_FEC_CONFIG_MASK; 1423 status = i40e_aq_set_phy_config(hw, &config, NULL); 1424 if (status) { 1425 netdev_info(netdev, 1426 "Set phy config failed, err %s aq_err %s\n", 1427 i40e_stat_str(hw, status), 1428 i40e_aq_str(hw, hw->aq.asq_last_status)); 1429 err = -EAGAIN; 1430 goto done; 1431 } 1432 pf->flags = flags; 1433 status = i40e_update_link_info(hw); 1434 if (status) 1435 /* debug level message only due to relation to the link 1436 * itself rather than to the FEC settings 1437 * (e.g. no physical connection etc.) 1438 */ 1439 netdev_dbg(netdev, 1440 "Updating link info failed with err %s aq_err %s\n", 1441 i40e_stat_str(hw, status), 1442 i40e_aq_str(hw, hw->aq.asq_last_status)); 1443 } 1444 1445 done: 1446 return err; 1447 } 1448 1449 static int i40e_get_fec_param(struct net_device *netdev, 1450 struct ethtool_fecparam *fecparam) 1451 { 1452 struct i40e_netdev_priv *np = netdev_priv(netdev); 1453 struct i40e_aq_get_phy_abilities_resp abilities; 1454 struct i40e_pf *pf = np->vsi->back; 1455 struct i40e_hw *hw = &pf->hw; 1456 i40e_status status = 0; 1457 int err = 0; 1458 u8 fec_cfg; 1459 1460 /* Get the current phy config */ 1461 memset(&abilities, 0, sizeof(abilities)); 1462 status = i40e_aq_get_phy_capabilities(hw, false, false, &abilities, 1463 NULL); 1464 if (status) { 1465 err = -EAGAIN; 1466 goto done; 1467 } 1468 1469 fecparam->fec = 0; 1470 fec_cfg = abilities.fec_cfg_curr_mod_ext_info; 1471 if (fec_cfg & I40E_AQ_SET_FEC_AUTO) 1472 fecparam->fec |= ETHTOOL_FEC_AUTO; 1473 else if (fec_cfg & (I40E_AQ_SET_FEC_REQUEST_RS | 1474 I40E_AQ_SET_FEC_ABILITY_RS)) 1475 fecparam->fec |= ETHTOOL_FEC_RS; 1476 else if (fec_cfg & (I40E_AQ_SET_FEC_REQUEST_KR | 1477 I40E_AQ_SET_FEC_ABILITY_KR)) 1478 fecparam->fec |= ETHTOOL_FEC_BASER; 1479 if (fec_cfg == 0) 1480 fecparam->fec |= ETHTOOL_FEC_OFF; 1481 1482 if (hw->phy.link_info.fec_info & I40E_AQ_CONFIG_FEC_KR_ENA) 1483 fecparam->active_fec = ETHTOOL_FEC_BASER; 1484 else if (hw->phy.link_info.fec_info & I40E_AQ_CONFIG_FEC_RS_ENA) 1485 fecparam->active_fec = ETHTOOL_FEC_RS; 1486 else 1487 fecparam->active_fec = ETHTOOL_FEC_OFF; 1488 done: 1489 return err; 1490 } 1491 1492 static int i40e_set_fec_param(struct net_device *netdev, 1493 struct ethtool_fecparam *fecparam) 1494 { 1495 struct i40e_netdev_priv *np = netdev_priv(netdev); 1496 struct i40e_pf *pf = np->vsi->back; 1497 struct i40e_hw *hw = &pf->hw; 1498 u8 fec_cfg = 0; 1499 1500 if (hw->device_id != I40E_DEV_ID_25G_SFP28 && 1501 hw->device_id != I40E_DEV_ID_25G_B && 1502 hw->device_id != I40E_DEV_ID_KX_X722) 1503 return -EPERM; 1504 1505 if (hw->mac.type == I40E_MAC_X722 && 1506 !(hw->flags & I40E_HW_FLAG_X722_FEC_REQUEST_CAPABLE)) { 1507 netdev_err(netdev, "Setting FEC encoding not supported by firmware. Please update the NVM image.\n"); 1508 return -EOPNOTSUPP; 1509 } 1510 1511 switch (fecparam->fec) { 1512 case ETHTOOL_FEC_AUTO: 1513 fec_cfg = I40E_AQ_SET_FEC_AUTO; 1514 break; 1515 case ETHTOOL_FEC_RS: 1516 fec_cfg = (I40E_AQ_SET_FEC_REQUEST_RS | 1517 I40E_AQ_SET_FEC_ABILITY_RS); 1518 break; 1519 case ETHTOOL_FEC_BASER: 1520 fec_cfg = (I40E_AQ_SET_FEC_REQUEST_KR | 1521 I40E_AQ_SET_FEC_ABILITY_KR); 1522 break; 1523 case ETHTOOL_FEC_OFF: 1524 case ETHTOOL_FEC_NONE: 1525 fec_cfg = 0; 1526 break; 1527 default: 1528 dev_warn(&pf->pdev->dev, "Unsupported FEC mode: %d", 1529 fecparam->fec); 1530 return -EINVAL; 1531 } 1532 1533 return i40e_set_fec_cfg(netdev, fec_cfg); 1534 } 1535 1536 static int i40e_nway_reset(struct net_device *netdev) 1537 { 1538 /* restart autonegotiation */ 1539 struct i40e_netdev_priv *np = netdev_priv(netdev); 1540 struct i40e_pf *pf = np->vsi->back; 1541 struct i40e_hw *hw = &pf->hw; 1542 bool link_up = hw->phy.link_info.link_info & I40E_AQ_LINK_UP; 1543 i40e_status ret = 0; 1544 1545 ret = i40e_aq_set_link_restart_an(hw, link_up, NULL); 1546 if (ret) { 1547 netdev_info(netdev, "link restart failed, err %s aq_err %s\n", 1548 i40e_stat_str(hw, ret), 1549 i40e_aq_str(hw, hw->aq.asq_last_status)); 1550 return -EIO; 1551 } 1552 1553 return 0; 1554 } 1555 1556 /** 1557 * i40e_get_pauseparam - Get Flow Control status 1558 * @netdev: netdevice structure 1559 * @pause: buffer to return pause parameters 1560 * 1561 * Return tx/rx-pause status 1562 **/ 1563 static void i40e_get_pauseparam(struct net_device *netdev, 1564 struct ethtool_pauseparam *pause) 1565 { 1566 struct i40e_netdev_priv *np = netdev_priv(netdev); 1567 struct i40e_pf *pf = np->vsi->back; 1568 struct i40e_hw *hw = &pf->hw; 1569 struct i40e_link_status *hw_link_info = &hw->phy.link_info; 1570 struct i40e_dcbx_config *dcbx_cfg = &hw->local_dcbx_config; 1571 1572 pause->autoneg = 1573 ((hw_link_info->an_info & I40E_AQ_AN_COMPLETED) ? 1574 AUTONEG_ENABLE : AUTONEG_DISABLE); 1575 1576 /* PFC enabled so report LFC as off */ 1577 if (dcbx_cfg->pfc.pfcenable) { 1578 pause->rx_pause = 0; 1579 pause->tx_pause = 0; 1580 return; 1581 } 1582 1583 if (hw->fc.current_mode == I40E_FC_RX_PAUSE) { 1584 pause->rx_pause = 1; 1585 } else if (hw->fc.current_mode == I40E_FC_TX_PAUSE) { 1586 pause->tx_pause = 1; 1587 } else if (hw->fc.current_mode == I40E_FC_FULL) { 1588 pause->rx_pause = 1; 1589 pause->tx_pause = 1; 1590 } 1591 } 1592 1593 /** 1594 * i40e_set_pauseparam - Set Flow Control parameter 1595 * @netdev: network interface device structure 1596 * @pause: return tx/rx flow control status 1597 **/ 1598 static int i40e_set_pauseparam(struct net_device *netdev, 1599 struct ethtool_pauseparam *pause) 1600 { 1601 struct i40e_netdev_priv *np = netdev_priv(netdev); 1602 struct i40e_pf *pf = np->vsi->back; 1603 struct i40e_vsi *vsi = np->vsi; 1604 struct i40e_hw *hw = &pf->hw; 1605 struct i40e_link_status *hw_link_info = &hw->phy.link_info; 1606 struct i40e_dcbx_config *dcbx_cfg = &hw->local_dcbx_config; 1607 bool link_up = hw_link_info->link_info & I40E_AQ_LINK_UP; 1608 i40e_status status; 1609 u8 aq_failures; 1610 int err = 0; 1611 u32 is_an; 1612 1613 /* Changing the port's flow control is not supported if this isn't the 1614 * port's controlling PF 1615 */ 1616 if (hw->partition_id != 1) { 1617 i40e_partition_setting_complaint(pf); 1618 return -EOPNOTSUPP; 1619 } 1620 1621 if (vsi != pf->vsi[pf->lan_vsi]) 1622 return -EOPNOTSUPP; 1623 1624 is_an = hw_link_info->an_info & I40E_AQ_AN_COMPLETED; 1625 if (pause->autoneg != is_an) { 1626 netdev_info(netdev, "To change autoneg please use: ethtool -s <dev> autoneg <on|off>\n"); 1627 return -EOPNOTSUPP; 1628 } 1629 1630 /* If we have link and don't have autoneg */ 1631 if (!test_bit(__I40E_DOWN, pf->state) && !is_an) { 1632 /* Send message that it might not necessarily work*/ 1633 netdev_info(netdev, "Autoneg did not complete so changing settings may not result in an actual change.\n"); 1634 } 1635 1636 if (dcbx_cfg->pfc.pfcenable) { 1637 netdev_info(netdev, 1638 "Priority flow control enabled. Cannot set link flow control.\n"); 1639 return -EOPNOTSUPP; 1640 } 1641 1642 if (pause->rx_pause && pause->tx_pause) 1643 hw->fc.requested_mode = I40E_FC_FULL; 1644 else if (pause->rx_pause && !pause->tx_pause) 1645 hw->fc.requested_mode = I40E_FC_RX_PAUSE; 1646 else if (!pause->rx_pause && pause->tx_pause) 1647 hw->fc.requested_mode = I40E_FC_TX_PAUSE; 1648 else if (!pause->rx_pause && !pause->tx_pause) 1649 hw->fc.requested_mode = I40E_FC_NONE; 1650 else 1651 return -EINVAL; 1652 1653 /* Tell the OS link is going down, the link will go back up when fw 1654 * says it is ready asynchronously 1655 */ 1656 i40e_print_link_message(vsi, false); 1657 netif_carrier_off(netdev); 1658 netif_tx_stop_all_queues(netdev); 1659 1660 /* Set the fc mode and only restart an if link is up*/ 1661 status = i40e_set_fc(hw, &aq_failures, link_up); 1662 1663 if (aq_failures & I40E_SET_FC_AQ_FAIL_GET) { 1664 netdev_info(netdev, "Set fc failed on the get_phy_capabilities call with err %s aq_err %s\n", 1665 i40e_stat_str(hw, status), 1666 i40e_aq_str(hw, hw->aq.asq_last_status)); 1667 err = -EAGAIN; 1668 } 1669 if (aq_failures & I40E_SET_FC_AQ_FAIL_SET) { 1670 netdev_info(netdev, "Set fc failed on the set_phy_config call with err %s aq_err %s\n", 1671 i40e_stat_str(hw, status), 1672 i40e_aq_str(hw, hw->aq.asq_last_status)); 1673 err = -EAGAIN; 1674 } 1675 if (aq_failures & I40E_SET_FC_AQ_FAIL_UPDATE) { 1676 netdev_info(netdev, "Set fc failed on the get_link_info call with err %s aq_err %s\n", 1677 i40e_stat_str(hw, status), 1678 i40e_aq_str(hw, hw->aq.asq_last_status)); 1679 err = -EAGAIN; 1680 } 1681 1682 if (!test_bit(__I40E_DOWN, pf->state) && is_an) { 1683 /* Give it a little more time to try to come back */ 1684 msleep(75); 1685 if (!test_bit(__I40E_DOWN, pf->state)) 1686 return i40e_nway_reset(netdev); 1687 } 1688 1689 return err; 1690 } 1691 1692 static u32 i40e_get_msglevel(struct net_device *netdev) 1693 { 1694 struct i40e_netdev_priv *np = netdev_priv(netdev); 1695 struct i40e_pf *pf = np->vsi->back; 1696 u32 debug_mask = pf->hw.debug_mask; 1697 1698 if (debug_mask) 1699 netdev_info(netdev, "i40e debug_mask: 0x%08X\n", debug_mask); 1700 1701 return pf->msg_enable; 1702 } 1703 1704 static void i40e_set_msglevel(struct net_device *netdev, u32 data) 1705 { 1706 struct i40e_netdev_priv *np = netdev_priv(netdev); 1707 struct i40e_pf *pf = np->vsi->back; 1708 1709 if (I40E_DEBUG_USER & data) 1710 pf->hw.debug_mask = data; 1711 else 1712 pf->msg_enable = data; 1713 } 1714 1715 static int i40e_get_regs_len(struct net_device *netdev) 1716 { 1717 int reg_count = 0; 1718 int i; 1719 1720 for (i = 0; i40e_reg_list[i].offset != 0; i++) 1721 reg_count += i40e_reg_list[i].elements; 1722 1723 return reg_count * sizeof(u32); 1724 } 1725 1726 static void i40e_get_regs(struct net_device *netdev, struct ethtool_regs *regs, 1727 void *p) 1728 { 1729 struct i40e_netdev_priv *np = netdev_priv(netdev); 1730 struct i40e_pf *pf = np->vsi->back; 1731 struct i40e_hw *hw = &pf->hw; 1732 u32 *reg_buf = p; 1733 unsigned int i, j, ri; 1734 u32 reg; 1735 1736 /* Tell ethtool which driver-version-specific regs output we have. 1737 * 1738 * At some point, if we have ethtool doing special formatting of 1739 * this data, it will rely on this version number to know how to 1740 * interpret things. Hence, this needs to be updated if/when the 1741 * diags register table is changed. 1742 */ 1743 regs->version = 1; 1744 1745 /* loop through the diags reg table for what to print */ 1746 ri = 0; 1747 for (i = 0; i40e_reg_list[i].offset != 0; i++) { 1748 for (j = 0; j < i40e_reg_list[i].elements; j++) { 1749 reg = i40e_reg_list[i].offset 1750 + (j * i40e_reg_list[i].stride); 1751 reg_buf[ri++] = rd32(hw, reg); 1752 } 1753 } 1754 1755 } 1756 1757 static int i40e_get_eeprom(struct net_device *netdev, 1758 struct ethtool_eeprom *eeprom, u8 *bytes) 1759 { 1760 struct i40e_netdev_priv *np = netdev_priv(netdev); 1761 struct i40e_hw *hw = &np->vsi->back->hw; 1762 struct i40e_pf *pf = np->vsi->back; 1763 int ret_val = 0, len, offset; 1764 u8 *eeprom_buff; 1765 u16 i, sectors; 1766 bool last; 1767 u32 magic; 1768 1769 #define I40E_NVM_SECTOR_SIZE 4096 1770 if (eeprom->len == 0) 1771 return -EINVAL; 1772 1773 /* check for NVMUpdate access method */ 1774 magic = hw->vendor_id | (hw->device_id << 16); 1775 if (eeprom->magic && eeprom->magic != magic) { 1776 struct i40e_nvm_access *cmd = (struct i40e_nvm_access *)eeprom; 1777 int errno = 0; 1778 1779 /* make sure it is the right magic for NVMUpdate */ 1780 if ((eeprom->magic >> 16) != hw->device_id) 1781 errno = -EINVAL; 1782 else if (test_bit(__I40E_RESET_RECOVERY_PENDING, pf->state) || 1783 test_bit(__I40E_RESET_INTR_RECEIVED, pf->state)) 1784 errno = -EBUSY; 1785 else 1786 ret_val = i40e_nvmupd_command(hw, cmd, bytes, &errno); 1787 1788 if ((errno || ret_val) && (hw->debug_mask & I40E_DEBUG_NVM)) 1789 dev_info(&pf->pdev->dev, 1790 "NVMUpdate read failed err=%d status=0x%x errno=%d module=%d offset=0x%x size=%d\n", 1791 ret_val, hw->aq.asq_last_status, errno, 1792 (u8)(cmd->config & I40E_NVM_MOD_PNT_MASK), 1793 cmd->offset, cmd->data_size); 1794 1795 return errno; 1796 } 1797 1798 /* normal ethtool get_eeprom support */ 1799 eeprom->magic = hw->vendor_id | (hw->device_id << 16); 1800 1801 eeprom_buff = kzalloc(eeprom->len, GFP_KERNEL); 1802 if (!eeprom_buff) 1803 return -ENOMEM; 1804 1805 ret_val = i40e_acquire_nvm(hw, I40E_RESOURCE_READ); 1806 if (ret_val) { 1807 dev_info(&pf->pdev->dev, 1808 "Failed Acquiring NVM resource for read err=%d status=0x%x\n", 1809 ret_val, hw->aq.asq_last_status); 1810 goto free_buff; 1811 } 1812 1813 sectors = eeprom->len / I40E_NVM_SECTOR_SIZE; 1814 sectors += (eeprom->len % I40E_NVM_SECTOR_SIZE) ? 1 : 0; 1815 len = I40E_NVM_SECTOR_SIZE; 1816 last = false; 1817 for (i = 0; i < sectors; i++) { 1818 if (i == (sectors - 1)) { 1819 len = eeprom->len - (I40E_NVM_SECTOR_SIZE * i); 1820 last = true; 1821 } 1822 offset = eeprom->offset + (I40E_NVM_SECTOR_SIZE * i), 1823 ret_val = i40e_aq_read_nvm(hw, 0x0, offset, len, 1824 (u8 *)eeprom_buff + (I40E_NVM_SECTOR_SIZE * i), 1825 last, NULL); 1826 if (ret_val && hw->aq.asq_last_status == I40E_AQ_RC_EPERM) { 1827 dev_info(&pf->pdev->dev, 1828 "read NVM failed, invalid offset 0x%x\n", 1829 offset); 1830 break; 1831 } else if (ret_val && 1832 hw->aq.asq_last_status == I40E_AQ_RC_EACCES) { 1833 dev_info(&pf->pdev->dev, 1834 "read NVM failed, access, offset 0x%x\n", 1835 offset); 1836 break; 1837 } else if (ret_val) { 1838 dev_info(&pf->pdev->dev, 1839 "read NVM failed offset %d err=%d status=0x%x\n", 1840 offset, ret_val, hw->aq.asq_last_status); 1841 break; 1842 } 1843 } 1844 1845 i40e_release_nvm(hw); 1846 memcpy(bytes, (u8 *)eeprom_buff, eeprom->len); 1847 free_buff: 1848 kfree(eeprom_buff); 1849 return ret_val; 1850 } 1851 1852 static int i40e_get_eeprom_len(struct net_device *netdev) 1853 { 1854 struct i40e_netdev_priv *np = netdev_priv(netdev); 1855 struct i40e_hw *hw = &np->vsi->back->hw; 1856 u32 val; 1857 1858 #define X722_EEPROM_SCOPE_LIMIT 0x5B9FFF 1859 if (hw->mac.type == I40E_MAC_X722) { 1860 val = X722_EEPROM_SCOPE_LIMIT + 1; 1861 return val; 1862 } 1863 val = (rd32(hw, I40E_GLPCI_LBARCTRL) 1864 & I40E_GLPCI_LBARCTRL_FL_SIZE_MASK) 1865 >> I40E_GLPCI_LBARCTRL_FL_SIZE_SHIFT; 1866 /* register returns value in power of 2, 64Kbyte chunks. */ 1867 val = (64 * 1024) * BIT(val); 1868 return val; 1869 } 1870 1871 static int i40e_set_eeprom(struct net_device *netdev, 1872 struct ethtool_eeprom *eeprom, u8 *bytes) 1873 { 1874 struct i40e_netdev_priv *np = netdev_priv(netdev); 1875 struct i40e_hw *hw = &np->vsi->back->hw; 1876 struct i40e_pf *pf = np->vsi->back; 1877 struct i40e_nvm_access *cmd = (struct i40e_nvm_access *)eeprom; 1878 int ret_val = 0; 1879 int errno = 0; 1880 u32 magic; 1881 1882 /* normal ethtool set_eeprom is not supported */ 1883 magic = hw->vendor_id | (hw->device_id << 16); 1884 if (eeprom->magic == magic) 1885 errno = -EOPNOTSUPP; 1886 /* check for NVMUpdate access method */ 1887 else if (!eeprom->magic || (eeprom->magic >> 16) != hw->device_id) 1888 errno = -EINVAL; 1889 else if (test_bit(__I40E_RESET_RECOVERY_PENDING, pf->state) || 1890 test_bit(__I40E_RESET_INTR_RECEIVED, pf->state)) 1891 errno = -EBUSY; 1892 else 1893 ret_val = i40e_nvmupd_command(hw, cmd, bytes, &errno); 1894 1895 if ((errno || ret_val) && (hw->debug_mask & I40E_DEBUG_NVM)) 1896 dev_info(&pf->pdev->dev, 1897 "NVMUpdate write failed err=%d status=0x%x errno=%d module=%d offset=0x%x size=%d\n", 1898 ret_val, hw->aq.asq_last_status, errno, 1899 (u8)(cmd->config & I40E_NVM_MOD_PNT_MASK), 1900 cmd->offset, cmd->data_size); 1901 1902 return errno; 1903 } 1904 1905 static void i40e_get_drvinfo(struct net_device *netdev, 1906 struct ethtool_drvinfo *drvinfo) 1907 { 1908 struct i40e_netdev_priv *np = netdev_priv(netdev); 1909 struct i40e_vsi *vsi = np->vsi; 1910 struct i40e_pf *pf = vsi->back; 1911 1912 strlcpy(drvinfo->driver, i40e_driver_name, sizeof(drvinfo->driver)); 1913 strlcpy(drvinfo->fw_version, i40e_nvm_version_str(&pf->hw), 1914 sizeof(drvinfo->fw_version)); 1915 strlcpy(drvinfo->bus_info, pci_name(pf->pdev), 1916 sizeof(drvinfo->bus_info)); 1917 drvinfo->n_priv_flags = I40E_PRIV_FLAGS_STR_LEN; 1918 if (pf->hw.pf_id == 0) 1919 drvinfo->n_priv_flags += I40E_GL_PRIV_FLAGS_STR_LEN; 1920 } 1921 1922 static void i40e_get_ringparam(struct net_device *netdev, 1923 struct ethtool_ringparam *ring, 1924 struct kernel_ethtool_ringparam *kernel_ring, 1925 struct netlink_ext_ack *extack) 1926 { 1927 struct i40e_netdev_priv *np = netdev_priv(netdev); 1928 struct i40e_pf *pf = np->vsi->back; 1929 struct i40e_vsi *vsi = pf->vsi[pf->lan_vsi]; 1930 1931 ring->rx_max_pending = I40E_MAX_NUM_DESCRIPTORS; 1932 ring->tx_max_pending = I40E_MAX_NUM_DESCRIPTORS; 1933 ring->rx_mini_max_pending = 0; 1934 ring->rx_jumbo_max_pending = 0; 1935 ring->rx_pending = vsi->rx_rings[0]->count; 1936 ring->tx_pending = vsi->tx_rings[0]->count; 1937 ring->rx_mini_pending = 0; 1938 ring->rx_jumbo_pending = 0; 1939 } 1940 1941 static bool i40e_active_tx_ring_index(struct i40e_vsi *vsi, u16 index) 1942 { 1943 if (i40e_enabled_xdp_vsi(vsi)) { 1944 return index < vsi->num_queue_pairs || 1945 (index >= vsi->alloc_queue_pairs && 1946 index < vsi->alloc_queue_pairs + vsi->num_queue_pairs); 1947 } 1948 1949 return index < vsi->num_queue_pairs; 1950 } 1951 1952 static int i40e_set_ringparam(struct net_device *netdev, 1953 struct ethtool_ringparam *ring, 1954 struct kernel_ethtool_ringparam *kernel_ring, 1955 struct netlink_ext_ack *extack) 1956 { 1957 struct i40e_ring *tx_rings = NULL, *rx_rings = NULL; 1958 struct i40e_netdev_priv *np = netdev_priv(netdev); 1959 struct i40e_hw *hw = &np->vsi->back->hw; 1960 struct i40e_vsi *vsi = np->vsi; 1961 struct i40e_pf *pf = vsi->back; 1962 u32 new_rx_count, new_tx_count; 1963 u16 tx_alloc_queue_pairs; 1964 int timeout = 50; 1965 int i, err = 0; 1966 1967 if ((ring->rx_mini_pending) || (ring->rx_jumbo_pending)) 1968 return -EINVAL; 1969 1970 if (ring->tx_pending > I40E_MAX_NUM_DESCRIPTORS || 1971 ring->tx_pending < I40E_MIN_NUM_DESCRIPTORS || 1972 ring->rx_pending > I40E_MAX_NUM_DESCRIPTORS || 1973 ring->rx_pending < I40E_MIN_NUM_DESCRIPTORS) { 1974 netdev_info(netdev, 1975 "Descriptors requested (Tx: %d / Rx: %d) out of range [%d-%d]\n", 1976 ring->tx_pending, ring->rx_pending, 1977 I40E_MIN_NUM_DESCRIPTORS, I40E_MAX_NUM_DESCRIPTORS); 1978 return -EINVAL; 1979 } 1980 1981 new_tx_count = ALIGN(ring->tx_pending, I40E_REQ_DESCRIPTOR_MULTIPLE); 1982 new_rx_count = ALIGN(ring->rx_pending, I40E_REQ_DESCRIPTOR_MULTIPLE); 1983 1984 /* if nothing to do return success */ 1985 if ((new_tx_count == vsi->tx_rings[0]->count) && 1986 (new_rx_count == vsi->rx_rings[0]->count)) 1987 return 0; 1988 1989 /* If there is a AF_XDP page pool attached to any of Rx rings, 1990 * disallow changing the number of descriptors -- regardless 1991 * if the netdev is running or not. 1992 */ 1993 if (i40e_xsk_any_rx_ring_enabled(vsi)) 1994 return -EBUSY; 1995 1996 while (test_and_set_bit(__I40E_CONFIG_BUSY, pf->state)) { 1997 timeout--; 1998 if (!timeout) 1999 return -EBUSY; 2000 usleep_range(1000, 2000); 2001 } 2002 2003 if (!netif_running(vsi->netdev)) { 2004 /* simple case - set for the next time the netdev is started */ 2005 for (i = 0; i < vsi->num_queue_pairs; i++) { 2006 vsi->tx_rings[i]->count = new_tx_count; 2007 vsi->rx_rings[i]->count = new_rx_count; 2008 if (i40e_enabled_xdp_vsi(vsi)) 2009 vsi->xdp_rings[i]->count = new_tx_count; 2010 } 2011 vsi->num_tx_desc = new_tx_count; 2012 vsi->num_rx_desc = new_rx_count; 2013 goto done; 2014 } 2015 2016 /* We can't just free everything and then setup again, 2017 * because the ISRs in MSI-X mode get passed pointers 2018 * to the Tx and Rx ring structs. 2019 */ 2020 2021 /* alloc updated Tx and XDP Tx resources */ 2022 tx_alloc_queue_pairs = vsi->alloc_queue_pairs * 2023 (i40e_enabled_xdp_vsi(vsi) ? 2 : 1); 2024 if (new_tx_count != vsi->tx_rings[0]->count) { 2025 netdev_info(netdev, 2026 "Changing Tx descriptor count from %d to %d.\n", 2027 vsi->tx_rings[0]->count, new_tx_count); 2028 tx_rings = kcalloc(tx_alloc_queue_pairs, 2029 sizeof(struct i40e_ring), GFP_KERNEL); 2030 if (!tx_rings) { 2031 err = -ENOMEM; 2032 goto done; 2033 } 2034 2035 for (i = 0; i < tx_alloc_queue_pairs; i++) { 2036 if (!i40e_active_tx_ring_index(vsi, i)) 2037 continue; 2038 2039 tx_rings[i] = *vsi->tx_rings[i]; 2040 tx_rings[i].count = new_tx_count; 2041 /* the desc and bi pointers will be reallocated in the 2042 * setup call 2043 */ 2044 tx_rings[i].desc = NULL; 2045 tx_rings[i].rx_bi = NULL; 2046 err = i40e_setup_tx_descriptors(&tx_rings[i]); 2047 if (err) { 2048 while (i) { 2049 i--; 2050 if (!i40e_active_tx_ring_index(vsi, i)) 2051 continue; 2052 i40e_free_tx_resources(&tx_rings[i]); 2053 } 2054 kfree(tx_rings); 2055 tx_rings = NULL; 2056 2057 goto done; 2058 } 2059 } 2060 } 2061 2062 /* alloc updated Rx resources */ 2063 if (new_rx_count != vsi->rx_rings[0]->count) { 2064 netdev_info(netdev, 2065 "Changing Rx descriptor count from %d to %d\n", 2066 vsi->rx_rings[0]->count, new_rx_count); 2067 rx_rings = kcalloc(vsi->alloc_queue_pairs, 2068 sizeof(struct i40e_ring), GFP_KERNEL); 2069 if (!rx_rings) { 2070 err = -ENOMEM; 2071 goto free_tx; 2072 } 2073 2074 for (i = 0; i < vsi->num_queue_pairs; i++) { 2075 u16 unused; 2076 2077 /* clone ring and setup updated count */ 2078 rx_rings[i] = *vsi->rx_rings[i]; 2079 rx_rings[i].count = new_rx_count; 2080 /* the desc and bi pointers will be reallocated in the 2081 * setup call 2082 */ 2083 rx_rings[i].desc = NULL; 2084 rx_rings[i].rx_bi = NULL; 2085 /* Clear cloned XDP RX-queue info before setup call */ 2086 memset(&rx_rings[i].xdp_rxq, 0, sizeof(rx_rings[i].xdp_rxq)); 2087 /* this is to allow wr32 to have something to write to 2088 * during early allocation of Rx buffers 2089 */ 2090 rx_rings[i].tail = hw->hw_addr + I40E_PRTGEN_STATUS; 2091 err = i40e_setup_rx_descriptors(&rx_rings[i]); 2092 if (err) 2093 goto rx_unwind; 2094 err = i40e_alloc_rx_bi(&rx_rings[i]); 2095 if (err) 2096 goto rx_unwind; 2097 2098 /* now allocate the Rx buffers to make sure the OS 2099 * has enough memory, any failure here means abort 2100 */ 2101 unused = I40E_DESC_UNUSED(&rx_rings[i]); 2102 err = i40e_alloc_rx_buffers(&rx_rings[i], unused); 2103 rx_unwind: 2104 if (err) { 2105 do { 2106 i40e_free_rx_resources(&rx_rings[i]); 2107 } while (i--); 2108 kfree(rx_rings); 2109 rx_rings = NULL; 2110 2111 goto free_tx; 2112 } 2113 } 2114 } 2115 2116 /* Bring interface down, copy in the new ring info, 2117 * then restore the interface 2118 */ 2119 i40e_down(vsi); 2120 2121 if (tx_rings) { 2122 for (i = 0; i < tx_alloc_queue_pairs; i++) { 2123 if (i40e_active_tx_ring_index(vsi, i)) { 2124 i40e_free_tx_resources(vsi->tx_rings[i]); 2125 *vsi->tx_rings[i] = tx_rings[i]; 2126 } 2127 } 2128 kfree(tx_rings); 2129 tx_rings = NULL; 2130 } 2131 2132 if (rx_rings) { 2133 for (i = 0; i < vsi->num_queue_pairs; i++) { 2134 i40e_free_rx_resources(vsi->rx_rings[i]); 2135 /* get the real tail offset */ 2136 rx_rings[i].tail = vsi->rx_rings[i]->tail; 2137 /* this is to fake out the allocation routine 2138 * into thinking it has to realloc everything 2139 * but the recycling logic will let us re-use 2140 * the buffers allocated above 2141 */ 2142 rx_rings[i].next_to_use = 0; 2143 rx_rings[i].next_to_clean = 0; 2144 rx_rings[i].next_to_alloc = 0; 2145 /* do a struct copy */ 2146 *vsi->rx_rings[i] = rx_rings[i]; 2147 } 2148 kfree(rx_rings); 2149 rx_rings = NULL; 2150 } 2151 2152 vsi->num_tx_desc = new_tx_count; 2153 vsi->num_rx_desc = new_rx_count; 2154 i40e_up(vsi); 2155 2156 free_tx: 2157 /* error cleanup if the Rx allocations failed after getting Tx */ 2158 if (tx_rings) { 2159 for (i = 0; i < tx_alloc_queue_pairs; i++) { 2160 if (i40e_active_tx_ring_index(vsi, i)) 2161 i40e_free_tx_resources(vsi->tx_rings[i]); 2162 } 2163 kfree(tx_rings); 2164 tx_rings = NULL; 2165 } 2166 2167 done: 2168 clear_bit(__I40E_CONFIG_BUSY, pf->state); 2169 2170 return err; 2171 } 2172 2173 /** 2174 * i40e_get_stats_count - return the stats count for a device 2175 * @netdev: the netdev to return the count for 2176 * 2177 * Returns the total number of statistics for this netdev. Note that even 2178 * though this is a function, it is required that the count for a specific 2179 * netdev must never change. Basing the count on static values such as the 2180 * maximum number of queues or the device type is ok. However, the API for 2181 * obtaining stats is *not* safe against changes based on non-static 2182 * values such as the *current* number of queues, or runtime flags. 2183 * 2184 * If a statistic is not always enabled, return it as part of the count 2185 * anyways, always return its string, and report its value as zero. 2186 **/ 2187 static int i40e_get_stats_count(struct net_device *netdev) 2188 { 2189 struct i40e_netdev_priv *np = netdev_priv(netdev); 2190 struct i40e_vsi *vsi = np->vsi; 2191 struct i40e_pf *pf = vsi->back; 2192 int stats_len; 2193 2194 if (vsi == pf->vsi[pf->lan_vsi] && pf->hw.partition_id == 1) 2195 stats_len = I40E_PF_STATS_LEN; 2196 else 2197 stats_len = I40E_VSI_STATS_LEN; 2198 2199 /* The number of stats reported for a given net_device must remain 2200 * constant throughout the life of that device. 2201 * 2202 * This is because the API for obtaining the size, strings, and stats 2203 * is spread out over three separate ethtool ioctls. There is no safe 2204 * way to lock the number of stats across these calls, so we must 2205 * assume that they will never change. 2206 * 2207 * Due to this, we report the maximum number of queues, even if not 2208 * every queue is currently configured. Since we always allocate 2209 * queues in pairs, we'll just use netdev->num_tx_queues * 2. This 2210 * works because the num_tx_queues is set at device creation and never 2211 * changes. 2212 */ 2213 stats_len += I40E_QUEUE_STATS_LEN * 2 * netdev->num_tx_queues; 2214 2215 return stats_len; 2216 } 2217 2218 static int i40e_get_sset_count(struct net_device *netdev, int sset) 2219 { 2220 struct i40e_netdev_priv *np = netdev_priv(netdev); 2221 struct i40e_vsi *vsi = np->vsi; 2222 struct i40e_pf *pf = vsi->back; 2223 2224 switch (sset) { 2225 case ETH_SS_TEST: 2226 return I40E_TEST_LEN; 2227 case ETH_SS_STATS: 2228 return i40e_get_stats_count(netdev); 2229 case ETH_SS_PRIV_FLAGS: 2230 return I40E_PRIV_FLAGS_STR_LEN + 2231 (pf->hw.pf_id == 0 ? I40E_GL_PRIV_FLAGS_STR_LEN : 0); 2232 default: 2233 return -EOPNOTSUPP; 2234 } 2235 } 2236 2237 /** 2238 * i40e_get_veb_tc_stats - copy VEB TC statistics to formatted structure 2239 * @tc: the TC statistics in VEB structure (veb->tc_stats) 2240 * @i: the index of traffic class in (veb->tc_stats) structure to copy 2241 * 2242 * Copy VEB TC statistics from structure of arrays (veb->tc_stats) to 2243 * one dimensional structure i40e_cp_veb_tc_stats. 2244 * Produce formatted i40e_cp_veb_tc_stats structure of the VEB TC 2245 * statistics for the given TC. 2246 **/ 2247 static struct i40e_cp_veb_tc_stats 2248 i40e_get_veb_tc_stats(struct i40e_veb_tc_stats *tc, unsigned int i) 2249 { 2250 struct i40e_cp_veb_tc_stats veb_tc = { 2251 .tc_rx_packets = tc->tc_rx_packets[i], 2252 .tc_rx_bytes = tc->tc_rx_bytes[i], 2253 .tc_tx_packets = tc->tc_tx_packets[i], 2254 .tc_tx_bytes = tc->tc_tx_bytes[i], 2255 }; 2256 2257 return veb_tc; 2258 } 2259 2260 /** 2261 * i40e_get_pfc_stats - copy HW PFC statistics to formatted structure 2262 * @pf: the PF device structure 2263 * @i: the priority value to copy 2264 * 2265 * The PFC stats are found as arrays in pf->stats, which is not easy to pass 2266 * into i40e_add_ethtool_stats. Produce a formatted i40e_pfc_stats structure 2267 * of the PFC stats for the given priority. 2268 **/ 2269 static inline struct i40e_pfc_stats 2270 i40e_get_pfc_stats(struct i40e_pf *pf, unsigned int i) 2271 { 2272 #define I40E_GET_PFC_STAT(stat, priority) \ 2273 .stat = pf->stats.stat[priority] 2274 2275 struct i40e_pfc_stats pfc = { 2276 I40E_GET_PFC_STAT(priority_xon_rx, i), 2277 I40E_GET_PFC_STAT(priority_xoff_rx, i), 2278 I40E_GET_PFC_STAT(priority_xon_tx, i), 2279 I40E_GET_PFC_STAT(priority_xoff_tx, i), 2280 I40E_GET_PFC_STAT(priority_xon_2_xoff, i), 2281 }; 2282 return pfc; 2283 } 2284 2285 /** 2286 * i40e_get_ethtool_stats - copy stat values into supplied buffer 2287 * @netdev: the netdev to collect stats for 2288 * @stats: ethtool stats command structure 2289 * @data: ethtool supplied buffer 2290 * 2291 * Copy the stats values for this netdev into the buffer. Expects data to be 2292 * pre-allocated to the size returned by i40e_get_stats_count.. Note that all 2293 * statistics must be copied in a static order, and the count must not change 2294 * for a given netdev. See i40e_get_stats_count for more details. 2295 * 2296 * If a statistic is not currently valid (such as a disabled queue), this 2297 * function reports its value as zero. 2298 **/ 2299 static void i40e_get_ethtool_stats(struct net_device *netdev, 2300 struct ethtool_stats *stats, u64 *data) 2301 { 2302 struct i40e_netdev_priv *np = netdev_priv(netdev); 2303 struct i40e_vsi *vsi = np->vsi; 2304 struct i40e_pf *pf = vsi->back; 2305 struct i40e_veb *veb = NULL; 2306 unsigned int i; 2307 bool veb_stats; 2308 u64 *p = data; 2309 2310 i40e_update_stats(vsi); 2311 2312 i40e_add_ethtool_stats(&data, i40e_get_vsi_stats_struct(vsi), 2313 i40e_gstrings_net_stats); 2314 2315 i40e_add_ethtool_stats(&data, vsi, i40e_gstrings_misc_stats); 2316 2317 rcu_read_lock(); 2318 for (i = 0; i < netdev->num_tx_queues; i++) { 2319 i40e_add_queue_stats(&data, READ_ONCE(vsi->tx_rings[i])); 2320 i40e_add_queue_stats(&data, READ_ONCE(vsi->rx_rings[i])); 2321 } 2322 rcu_read_unlock(); 2323 2324 if (vsi != pf->vsi[pf->lan_vsi] || pf->hw.partition_id != 1) 2325 goto check_data_pointer; 2326 2327 veb_stats = ((pf->lan_veb != I40E_NO_VEB) && 2328 (pf->lan_veb < I40E_MAX_VEB) && 2329 (pf->flags & I40E_FLAG_VEB_STATS_ENABLED)); 2330 2331 if (veb_stats) { 2332 veb = pf->veb[pf->lan_veb]; 2333 i40e_update_veb_stats(veb); 2334 } 2335 2336 /* If veb stats aren't enabled, pass NULL instead of the veb so that 2337 * we initialize stats to zero and update the data pointer 2338 * intelligently 2339 */ 2340 i40e_add_ethtool_stats(&data, veb_stats ? veb : NULL, 2341 i40e_gstrings_veb_stats); 2342 2343 for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++) 2344 if (veb_stats) { 2345 struct i40e_cp_veb_tc_stats veb_tc = 2346 i40e_get_veb_tc_stats(&veb->tc_stats, i); 2347 2348 i40e_add_ethtool_stats(&data, &veb_tc, 2349 i40e_gstrings_veb_tc_stats); 2350 } else { 2351 i40e_add_ethtool_stats(&data, NULL, 2352 i40e_gstrings_veb_tc_stats); 2353 } 2354 2355 i40e_add_ethtool_stats(&data, pf, i40e_gstrings_stats); 2356 2357 for (i = 0; i < I40E_MAX_USER_PRIORITY; i++) { 2358 struct i40e_pfc_stats pfc = i40e_get_pfc_stats(pf, i); 2359 2360 i40e_add_ethtool_stats(&data, &pfc, i40e_gstrings_pfc_stats); 2361 } 2362 2363 check_data_pointer: 2364 WARN_ONCE(data - p != i40e_get_stats_count(netdev), 2365 "ethtool stats count mismatch!"); 2366 } 2367 2368 /** 2369 * i40e_get_stat_strings - copy stat strings into supplied buffer 2370 * @netdev: the netdev to collect strings for 2371 * @data: supplied buffer to copy strings into 2372 * 2373 * Copy the strings related to stats for this netdev. Expects data to be 2374 * pre-allocated with the size reported by i40e_get_stats_count. Note that the 2375 * strings must be copied in a static order and the total count must not 2376 * change for a given netdev. See i40e_get_stats_count for more details. 2377 **/ 2378 static void i40e_get_stat_strings(struct net_device *netdev, u8 *data) 2379 { 2380 struct i40e_netdev_priv *np = netdev_priv(netdev); 2381 struct i40e_vsi *vsi = np->vsi; 2382 struct i40e_pf *pf = vsi->back; 2383 unsigned int i; 2384 u8 *p = data; 2385 2386 i40e_add_stat_strings(&data, i40e_gstrings_net_stats); 2387 2388 i40e_add_stat_strings(&data, i40e_gstrings_misc_stats); 2389 2390 for (i = 0; i < netdev->num_tx_queues; i++) { 2391 i40e_add_stat_strings(&data, i40e_gstrings_queue_stats, 2392 "tx", i); 2393 i40e_add_stat_strings(&data, i40e_gstrings_queue_stats, 2394 "rx", i); 2395 } 2396 2397 if (vsi != pf->vsi[pf->lan_vsi] || pf->hw.partition_id != 1) 2398 goto check_data_pointer; 2399 2400 i40e_add_stat_strings(&data, i40e_gstrings_veb_stats); 2401 2402 for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++) 2403 i40e_add_stat_strings(&data, i40e_gstrings_veb_tc_stats, i); 2404 2405 i40e_add_stat_strings(&data, i40e_gstrings_stats); 2406 2407 for (i = 0; i < I40E_MAX_USER_PRIORITY; i++) 2408 i40e_add_stat_strings(&data, i40e_gstrings_pfc_stats, i); 2409 2410 check_data_pointer: 2411 WARN_ONCE(data - p != i40e_get_stats_count(netdev) * ETH_GSTRING_LEN, 2412 "stat strings count mismatch!"); 2413 } 2414 2415 static void i40e_get_priv_flag_strings(struct net_device *netdev, u8 *data) 2416 { 2417 struct i40e_netdev_priv *np = netdev_priv(netdev); 2418 struct i40e_vsi *vsi = np->vsi; 2419 struct i40e_pf *pf = vsi->back; 2420 unsigned int i; 2421 u8 *p = data; 2422 2423 for (i = 0; i < I40E_PRIV_FLAGS_STR_LEN; i++) 2424 ethtool_sprintf(&p, i40e_gstrings_priv_flags[i].flag_string); 2425 if (pf->hw.pf_id != 0) 2426 return; 2427 for (i = 0; i < I40E_GL_PRIV_FLAGS_STR_LEN; i++) 2428 ethtool_sprintf(&p, i40e_gl_gstrings_priv_flags[i].flag_string); 2429 } 2430 2431 static void i40e_get_strings(struct net_device *netdev, u32 stringset, 2432 u8 *data) 2433 { 2434 switch (stringset) { 2435 case ETH_SS_TEST: 2436 memcpy(data, i40e_gstrings_test, 2437 I40E_TEST_LEN * ETH_GSTRING_LEN); 2438 break; 2439 case ETH_SS_STATS: 2440 i40e_get_stat_strings(netdev, data); 2441 break; 2442 case ETH_SS_PRIV_FLAGS: 2443 i40e_get_priv_flag_strings(netdev, data); 2444 break; 2445 default: 2446 break; 2447 } 2448 } 2449 2450 static int i40e_get_ts_info(struct net_device *dev, 2451 struct ethtool_ts_info *info) 2452 { 2453 struct i40e_pf *pf = i40e_netdev_to_pf(dev); 2454 2455 /* only report HW timestamping if PTP is enabled */ 2456 if (!(pf->flags & I40E_FLAG_PTP)) 2457 return ethtool_op_get_ts_info(dev, info); 2458 2459 info->so_timestamping = SOF_TIMESTAMPING_TX_SOFTWARE | 2460 SOF_TIMESTAMPING_RX_SOFTWARE | 2461 SOF_TIMESTAMPING_SOFTWARE | 2462 SOF_TIMESTAMPING_TX_HARDWARE | 2463 SOF_TIMESTAMPING_RX_HARDWARE | 2464 SOF_TIMESTAMPING_RAW_HARDWARE; 2465 2466 if (pf->ptp_clock) 2467 info->phc_index = ptp_clock_index(pf->ptp_clock); 2468 else 2469 info->phc_index = -1; 2470 2471 info->tx_types = BIT(HWTSTAMP_TX_OFF) | BIT(HWTSTAMP_TX_ON); 2472 2473 info->rx_filters = BIT(HWTSTAMP_FILTER_NONE) | 2474 BIT(HWTSTAMP_FILTER_PTP_V2_L2_EVENT) | 2475 BIT(HWTSTAMP_FILTER_PTP_V2_L2_SYNC) | 2476 BIT(HWTSTAMP_FILTER_PTP_V2_L2_DELAY_REQ); 2477 2478 if (pf->hw_features & I40E_HW_PTP_L4_CAPABLE) 2479 info->rx_filters |= BIT(HWTSTAMP_FILTER_PTP_V1_L4_SYNC) | 2480 BIT(HWTSTAMP_FILTER_PTP_V1_L4_DELAY_REQ) | 2481 BIT(HWTSTAMP_FILTER_PTP_V2_EVENT) | 2482 BIT(HWTSTAMP_FILTER_PTP_V2_L4_EVENT) | 2483 BIT(HWTSTAMP_FILTER_PTP_V2_SYNC) | 2484 BIT(HWTSTAMP_FILTER_PTP_V2_L4_SYNC) | 2485 BIT(HWTSTAMP_FILTER_PTP_V2_DELAY_REQ) | 2486 BIT(HWTSTAMP_FILTER_PTP_V2_L4_DELAY_REQ); 2487 2488 return 0; 2489 } 2490 2491 static u64 i40e_link_test(struct net_device *netdev, u64 *data) 2492 { 2493 struct i40e_netdev_priv *np = netdev_priv(netdev); 2494 struct i40e_pf *pf = np->vsi->back; 2495 i40e_status status; 2496 bool link_up = false; 2497 2498 netif_info(pf, hw, netdev, "link test\n"); 2499 status = i40e_get_link_status(&pf->hw, &link_up); 2500 if (status) { 2501 netif_err(pf, drv, netdev, "link query timed out, please retry test\n"); 2502 *data = 1; 2503 return *data; 2504 } 2505 2506 if (link_up) 2507 *data = 0; 2508 else 2509 *data = 1; 2510 2511 return *data; 2512 } 2513 2514 static u64 i40e_reg_test(struct net_device *netdev, u64 *data) 2515 { 2516 struct i40e_netdev_priv *np = netdev_priv(netdev); 2517 struct i40e_pf *pf = np->vsi->back; 2518 2519 netif_info(pf, hw, netdev, "register test\n"); 2520 *data = i40e_diag_reg_test(&pf->hw); 2521 2522 return *data; 2523 } 2524 2525 static u64 i40e_eeprom_test(struct net_device *netdev, u64 *data) 2526 { 2527 struct i40e_netdev_priv *np = netdev_priv(netdev); 2528 struct i40e_pf *pf = np->vsi->back; 2529 2530 netif_info(pf, hw, netdev, "eeprom test\n"); 2531 *data = i40e_diag_eeprom_test(&pf->hw); 2532 2533 /* forcebly clear the NVM Update state machine */ 2534 pf->hw.nvmupd_state = I40E_NVMUPD_STATE_INIT; 2535 2536 return *data; 2537 } 2538 2539 static u64 i40e_intr_test(struct net_device *netdev, u64 *data) 2540 { 2541 struct i40e_netdev_priv *np = netdev_priv(netdev); 2542 struct i40e_pf *pf = np->vsi->back; 2543 u16 swc_old = pf->sw_int_count; 2544 2545 netif_info(pf, hw, netdev, "interrupt test\n"); 2546 wr32(&pf->hw, I40E_PFINT_DYN_CTL0, 2547 (I40E_PFINT_DYN_CTL0_INTENA_MASK | 2548 I40E_PFINT_DYN_CTL0_SWINT_TRIG_MASK | 2549 I40E_PFINT_DYN_CTL0_ITR_INDX_MASK | 2550 I40E_PFINT_DYN_CTL0_SW_ITR_INDX_ENA_MASK | 2551 I40E_PFINT_DYN_CTL0_SW_ITR_INDX_MASK)); 2552 usleep_range(1000, 2000); 2553 *data = (swc_old == pf->sw_int_count); 2554 2555 return *data; 2556 } 2557 2558 static inline bool i40e_active_vfs(struct i40e_pf *pf) 2559 { 2560 struct i40e_vf *vfs = pf->vf; 2561 int i; 2562 2563 for (i = 0; i < pf->num_alloc_vfs; i++) 2564 if (test_bit(I40E_VF_STATE_ACTIVE, &vfs[i].vf_states)) 2565 return true; 2566 return false; 2567 } 2568 2569 static inline bool i40e_active_vmdqs(struct i40e_pf *pf) 2570 { 2571 return !!i40e_find_vsi_by_type(pf, I40E_VSI_VMDQ2); 2572 } 2573 2574 static void i40e_diag_test(struct net_device *netdev, 2575 struct ethtool_test *eth_test, u64 *data) 2576 { 2577 struct i40e_netdev_priv *np = netdev_priv(netdev); 2578 bool if_running = netif_running(netdev); 2579 struct i40e_pf *pf = np->vsi->back; 2580 2581 if (eth_test->flags == ETH_TEST_FL_OFFLINE) { 2582 /* Offline tests */ 2583 netif_info(pf, drv, netdev, "offline testing starting\n"); 2584 2585 set_bit(__I40E_TESTING, pf->state); 2586 2587 if (i40e_active_vfs(pf) || i40e_active_vmdqs(pf)) { 2588 dev_warn(&pf->pdev->dev, 2589 "Please take active VFs and Netqueues offline and restart the adapter before running NIC diagnostics\n"); 2590 data[I40E_ETH_TEST_REG] = 1; 2591 data[I40E_ETH_TEST_EEPROM] = 1; 2592 data[I40E_ETH_TEST_INTR] = 1; 2593 data[I40E_ETH_TEST_LINK] = 1; 2594 eth_test->flags |= ETH_TEST_FL_FAILED; 2595 clear_bit(__I40E_TESTING, pf->state); 2596 goto skip_ol_tests; 2597 } 2598 2599 /* If the device is online then take it offline */ 2600 if (if_running) 2601 /* indicate we're in test mode */ 2602 i40e_close(netdev); 2603 else 2604 /* This reset does not affect link - if it is 2605 * changed to a type of reset that does affect 2606 * link then the following link test would have 2607 * to be moved to before the reset 2608 */ 2609 i40e_do_reset(pf, BIT(__I40E_PF_RESET_REQUESTED), true); 2610 2611 if (i40e_link_test(netdev, &data[I40E_ETH_TEST_LINK])) 2612 eth_test->flags |= ETH_TEST_FL_FAILED; 2613 2614 if (i40e_eeprom_test(netdev, &data[I40E_ETH_TEST_EEPROM])) 2615 eth_test->flags |= ETH_TEST_FL_FAILED; 2616 2617 if (i40e_intr_test(netdev, &data[I40E_ETH_TEST_INTR])) 2618 eth_test->flags |= ETH_TEST_FL_FAILED; 2619 2620 /* run reg test last, a reset is required after it */ 2621 if (i40e_reg_test(netdev, &data[I40E_ETH_TEST_REG])) 2622 eth_test->flags |= ETH_TEST_FL_FAILED; 2623 2624 clear_bit(__I40E_TESTING, pf->state); 2625 i40e_do_reset(pf, BIT(__I40E_PF_RESET_REQUESTED), true); 2626 2627 if (if_running) 2628 i40e_open(netdev); 2629 } else { 2630 /* Online tests */ 2631 netif_info(pf, drv, netdev, "online testing starting\n"); 2632 2633 if (i40e_link_test(netdev, &data[I40E_ETH_TEST_LINK])) 2634 eth_test->flags |= ETH_TEST_FL_FAILED; 2635 2636 /* Offline only tests, not run in online; pass by default */ 2637 data[I40E_ETH_TEST_REG] = 0; 2638 data[I40E_ETH_TEST_EEPROM] = 0; 2639 data[I40E_ETH_TEST_INTR] = 0; 2640 } 2641 2642 skip_ol_tests: 2643 2644 netif_info(pf, drv, netdev, "testing finished\n"); 2645 } 2646 2647 static void i40e_get_wol(struct net_device *netdev, 2648 struct ethtool_wolinfo *wol) 2649 { 2650 struct i40e_netdev_priv *np = netdev_priv(netdev); 2651 struct i40e_pf *pf = np->vsi->back; 2652 struct i40e_hw *hw = &pf->hw; 2653 u16 wol_nvm_bits; 2654 2655 /* NVM bit on means WoL disabled for the port */ 2656 i40e_read_nvm_word(hw, I40E_SR_NVM_WAKE_ON_LAN, &wol_nvm_bits); 2657 if ((BIT(hw->port) & wol_nvm_bits) || (hw->partition_id != 1)) { 2658 wol->supported = 0; 2659 wol->wolopts = 0; 2660 } else { 2661 wol->supported = WAKE_MAGIC; 2662 wol->wolopts = (pf->wol_en ? WAKE_MAGIC : 0); 2663 } 2664 } 2665 2666 /** 2667 * i40e_set_wol - set the WakeOnLAN configuration 2668 * @netdev: the netdev in question 2669 * @wol: the ethtool WoL setting data 2670 **/ 2671 static int i40e_set_wol(struct net_device *netdev, struct ethtool_wolinfo *wol) 2672 { 2673 struct i40e_netdev_priv *np = netdev_priv(netdev); 2674 struct i40e_pf *pf = np->vsi->back; 2675 struct i40e_vsi *vsi = np->vsi; 2676 struct i40e_hw *hw = &pf->hw; 2677 u16 wol_nvm_bits; 2678 2679 /* WoL not supported if this isn't the controlling PF on the port */ 2680 if (hw->partition_id != 1) { 2681 i40e_partition_setting_complaint(pf); 2682 return -EOPNOTSUPP; 2683 } 2684 2685 if (vsi != pf->vsi[pf->lan_vsi]) 2686 return -EOPNOTSUPP; 2687 2688 /* NVM bit on means WoL disabled for the port */ 2689 i40e_read_nvm_word(hw, I40E_SR_NVM_WAKE_ON_LAN, &wol_nvm_bits); 2690 if (BIT(hw->port) & wol_nvm_bits) 2691 return -EOPNOTSUPP; 2692 2693 /* only magic packet is supported */ 2694 if (wol->wolopts & ~WAKE_MAGIC) 2695 return -EOPNOTSUPP; 2696 2697 /* is this a new value? */ 2698 if (pf->wol_en != !!wol->wolopts) { 2699 pf->wol_en = !!wol->wolopts; 2700 device_set_wakeup_enable(&pf->pdev->dev, pf->wol_en); 2701 } 2702 2703 return 0; 2704 } 2705 2706 static int i40e_set_phys_id(struct net_device *netdev, 2707 enum ethtool_phys_id_state state) 2708 { 2709 struct i40e_netdev_priv *np = netdev_priv(netdev); 2710 i40e_status ret = 0; 2711 struct i40e_pf *pf = np->vsi->back; 2712 struct i40e_hw *hw = &pf->hw; 2713 int blink_freq = 2; 2714 u16 temp_status; 2715 2716 switch (state) { 2717 case ETHTOOL_ID_ACTIVE: 2718 if (!(pf->hw_features & I40E_HW_PHY_CONTROLS_LEDS)) { 2719 pf->led_status = i40e_led_get(hw); 2720 } else { 2721 if (!(hw->flags & I40E_HW_FLAG_AQ_PHY_ACCESS_CAPABLE)) 2722 i40e_aq_set_phy_debug(hw, I40E_PHY_DEBUG_ALL, 2723 NULL); 2724 ret = i40e_led_get_phy(hw, &temp_status, 2725 &pf->phy_led_val); 2726 pf->led_status = temp_status; 2727 } 2728 return blink_freq; 2729 case ETHTOOL_ID_ON: 2730 if (!(pf->hw_features & I40E_HW_PHY_CONTROLS_LEDS)) 2731 i40e_led_set(hw, 0xf, false); 2732 else 2733 ret = i40e_led_set_phy(hw, true, pf->led_status, 0); 2734 break; 2735 case ETHTOOL_ID_OFF: 2736 if (!(pf->hw_features & I40E_HW_PHY_CONTROLS_LEDS)) 2737 i40e_led_set(hw, 0x0, false); 2738 else 2739 ret = i40e_led_set_phy(hw, false, pf->led_status, 0); 2740 break; 2741 case ETHTOOL_ID_INACTIVE: 2742 if (!(pf->hw_features & I40E_HW_PHY_CONTROLS_LEDS)) { 2743 i40e_led_set(hw, pf->led_status, false); 2744 } else { 2745 ret = i40e_led_set_phy(hw, false, pf->led_status, 2746 (pf->phy_led_val | 2747 I40E_PHY_LED_MODE_ORIG)); 2748 if (!(hw->flags & I40E_HW_FLAG_AQ_PHY_ACCESS_CAPABLE)) 2749 i40e_aq_set_phy_debug(hw, 0, NULL); 2750 } 2751 break; 2752 default: 2753 break; 2754 } 2755 if (ret) 2756 return -ENOENT; 2757 else 2758 return 0; 2759 } 2760 2761 /* NOTE: i40e hardware uses a conversion factor of 2 for Interrupt 2762 * Throttle Rate (ITR) ie. ITR(1) = 2us ITR(10) = 20 us, and also 2763 * 125us (8000 interrupts per second) == ITR(62) 2764 */ 2765 2766 /** 2767 * __i40e_get_coalesce - get per-queue coalesce settings 2768 * @netdev: the netdev to check 2769 * @ec: ethtool coalesce data structure 2770 * @queue: which queue to pick 2771 * 2772 * Gets the per-queue settings for coalescence. Specifically Rx and Tx usecs 2773 * are per queue. If queue is <0 then we default to queue 0 as the 2774 * representative value. 2775 **/ 2776 static int __i40e_get_coalesce(struct net_device *netdev, 2777 struct ethtool_coalesce *ec, 2778 int queue) 2779 { 2780 struct i40e_netdev_priv *np = netdev_priv(netdev); 2781 struct i40e_ring *rx_ring, *tx_ring; 2782 struct i40e_vsi *vsi = np->vsi; 2783 2784 ec->tx_max_coalesced_frames_irq = vsi->work_limit; 2785 ec->rx_max_coalesced_frames_irq = vsi->work_limit; 2786 2787 /* rx and tx usecs has per queue value. If user doesn't specify the 2788 * queue, return queue 0's value to represent. 2789 */ 2790 if (queue < 0) 2791 queue = 0; 2792 else if (queue >= vsi->num_queue_pairs) 2793 return -EINVAL; 2794 2795 rx_ring = vsi->rx_rings[queue]; 2796 tx_ring = vsi->tx_rings[queue]; 2797 2798 if (ITR_IS_DYNAMIC(rx_ring->itr_setting)) 2799 ec->use_adaptive_rx_coalesce = 1; 2800 2801 if (ITR_IS_DYNAMIC(tx_ring->itr_setting)) 2802 ec->use_adaptive_tx_coalesce = 1; 2803 2804 ec->rx_coalesce_usecs = rx_ring->itr_setting & ~I40E_ITR_DYNAMIC; 2805 ec->tx_coalesce_usecs = tx_ring->itr_setting & ~I40E_ITR_DYNAMIC; 2806 2807 /* we use the _usecs_high to store/set the interrupt rate limit 2808 * that the hardware supports, that almost but not quite 2809 * fits the original intent of the ethtool variable, 2810 * the rx_coalesce_usecs_high limits total interrupts 2811 * per second from both tx/rx sources. 2812 */ 2813 ec->rx_coalesce_usecs_high = vsi->int_rate_limit; 2814 ec->tx_coalesce_usecs_high = vsi->int_rate_limit; 2815 2816 return 0; 2817 } 2818 2819 /** 2820 * i40e_get_coalesce - get a netdev's coalesce settings 2821 * @netdev: the netdev to check 2822 * @ec: ethtool coalesce data structure 2823 * @kernel_coal: ethtool CQE mode setting structure 2824 * @extack: extack for reporting error messages 2825 * 2826 * Gets the coalesce settings for a particular netdev. Note that if user has 2827 * modified per-queue settings, this only guarantees to represent queue 0. See 2828 * __i40e_get_coalesce for more details. 2829 **/ 2830 static int i40e_get_coalesce(struct net_device *netdev, 2831 struct ethtool_coalesce *ec, 2832 struct kernel_ethtool_coalesce *kernel_coal, 2833 struct netlink_ext_ack *extack) 2834 { 2835 return __i40e_get_coalesce(netdev, ec, -1); 2836 } 2837 2838 /** 2839 * i40e_get_per_queue_coalesce - gets coalesce settings for particular queue 2840 * @netdev: netdev structure 2841 * @ec: ethtool's coalesce settings 2842 * @queue: the particular queue to read 2843 * 2844 * Will read a specific queue's coalesce settings 2845 **/ 2846 static int i40e_get_per_queue_coalesce(struct net_device *netdev, u32 queue, 2847 struct ethtool_coalesce *ec) 2848 { 2849 return __i40e_get_coalesce(netdev, ec, queue); 2850 } 2851 2852 /** 2853 * i40e_set_itr_per_queue - set ITR values for specific queue 2854 * @vsi: the VSI to set values for 2855 * @ec: coalesce settings from ethtool 2856 * @queue: the queue to modify 2857 * 2858 * Change the ITR settings for a specific queue. 2859 **/ 2860 static void i40e_set_itr_per_queue(struct i40e_vsi *vsi, 2861 struct ethtool_coalesce *ec, 2862 int queue) 2863 { 2864 struct i40e_ring *rx_ring = vsi->rx_rings[queue]; 2865 struct i40e_ring *tx_ring = vsi->tx_rings[queue]; 2866 struct i40e_pf *pf = vsi->back; 2867 struct i40e_hw *hw = &pf->hw; 2868 struct i40e_q_vector *q_vector; 2869 u16 intrl; 2870 2871 intrl = i40e_intrl_usec_to_reg(vsi->int_rate_limit); 2872 2873 rx_ring->itr_setting = ITR_REG_ALIGN(ec->rx_coalesce_usecs); 2874 tx_ring->itr_setting = ITR_REG_ALIGN(ec->tx_coalesce_usecs); 2875 2876 if (ec->use_adaptive_rx_coalesce) 2877 rx_ring->itr_setting |= I40E_ITR_DYNAMIC; 2878 else 2879 rx_ring->itr_setting &= ~I40E_ITR_DYNAMIC; 2880 2881 if (ec->use_adaptive_tx_coalesce) 2882 tx_ring->itr_setting |= I40E_ITR_DYNAMIC; 2883 else 2884 tx_ring->itr_setting &= ~I40E_ITR_DYNAMIC; 2885 2886 q_vector = rx_ring->q_vector; 2887 q_vector->rx.target_itr = ITR_TO_REG(rx_ring->itr_setting); 2888 2889 q_vector = tx_ring->q_vector; 2890 q_vector->tx.target_itr = ITR_TO_REG(tx_ring->itr_setting); 2891 2892 /* The interrupt handler itself will take care of programming 2893 * the Tx and Rx ITR values based on the values we have entered 2894 * into the q_vector, no need to write the values now. 2895 */ 2896 2897 wr32(hw, I40E_PFINT_RATEN(q_vector->reg_idx), intrl); 2898 i40e_flush(hw); 2899 } 2900 2901 /** 2902 * __i40e_set_coalesce - set coalesce settings for particular queue 2903 * @netdev: the netdev to change 2904 * @ec: ethtool coalesce settings 2905 * @queue: the queue to change 2906 * 2907 * Sets the coalesce settings for a particular queue. 2908 **/ 2909 static int __i40e_set_coalesce(struct net_device *netdev, 2910 struct ethtool_coalesce *ec, 2911 int queue) 2912 { 2913 struct i40e_netdev_priv *np = netdev_priv(netdev); 2914 u16 intrl_reg, cur_rx_itr, cur_tx_itr; 2915 struct i40e_vsi *vsi = np->vsi; 2916 struct i40e_pf *pf = vsi->back; 2917 int i; 2918 2919 if (ec->tx_max_coalesced_frames_irq || ec->rx_max_coalesced_frames_irq) 2920 vsi->work_limit = ec->tx_max_coalesced_frames_irq; 2921 2922 if (queue < 0) { 2923 cur_rx_itr = vsi->rx_rings[0]->itr_setting; 2924 cur_tx_itr = vsi->tx_rings[0]->itr_setting; 2925 } else if (queue < vsi->num_queue_pairs) { 2926 cur_rx_itr = vsi->rx_rings[queue]->itr_setting; 2927 cur_tx_itr = vsi->tx_rings[queue]->itr_setting; 2928 } else { 2929 netif_info(pf, drv, netdev, "Invalid queue value, queue range is 0 - %d\n", 2930 vsi->num_queue_pairs - 1); 2931 return -EINVAL; 2932 } 2933 2934 cur_tx_itr &= ~I40E_ITR_DYNAMIC; 2935 cur_rx_itr &= ~I40E_ITR_DYNAMIC; 2936 2937 /* tx_coalesce_usecs_high is ignored, use rx-usecs-high instead */ 2938 if (ec->tx_coalesce_usecs_high != vsi->int_rate_limit) { 2939 netif_info(pf, drv, netdev, "tx-usecs-high is not used, please program rx-usecs-high\n"); 2940 return -EINVAL; 2941 } 2942 2943 if (ec->rx_coalesce_usecs_high > INTRL_REG_TO_USEC(I40E_MAX_INTRL)) { 2944 netif_info(pf, drv, netdev, "Invalid value, rx-usecs-high range is 0-%lu\n", 2945 INTRL_REG_TO_USEC(I40E_MAX_INTRL)); 2946 return -EINVAL; 2947 } 2948 2949 if (ec->rx_coalesce_usecs != cur_rx_itr && 2950 ec->use_adaptive_rx_coalesce) { 2951 netif_info(pf, drv, netdev, "RX interrupt moderation cannot be changed if adaptive-rx is enabled.\n"); 2952 return -EINVAL; 2953 } 2954 2955 if (ec->rx_coalesce_usecs > I40E_MAX_ITR) { 2956 netif_info(pf, drv, netdev, "Invalid value, rx-usecs range is 0-8160\n"); 2957 return -EINVAL; 2958 } 2959 2960 if (ec->tx_coalesce_usecs != cur_tx_itr && 2961 ec->use_adaptive_tx_coalesce) { 2962 netif_info(pf, drv, netdev, "TX interrupt moderation cannot be changed if adaptive-tx is enabled.\n"); 2963 return -EINVAL; 2964 } 2965 2966 if (ec->tx_coalesce_usecs > I40E_MAX_ITR) { 2967 netif_info(pf, drv, netdev, "Invalid value, tx-usecs range is 0-8160\n"); 2968 return -EINVAL; 2969 } 2970 2971 if (ec->use_adaptive_rx_coalesce && !cur_rx_itr) 2972 ec->rx_coalesce_usecs = I40E_MIN_ITR; 2973 2974 if (ec->use_adaptive_tx_coalesce && !cur_tx_itr) 2975 ec->tx_coalesce_usecs = I40E_MIN_ITR; 2976 2977 intrl_reg = i40e_intrl_usec_to_reg(ec->rx_coalesce_usecs_high); 2978 vsi->int_rate_limit = INTRL_REG_TO_USEC(intrl_reg); 2979 if (vsi->int_rate_limit != ec->rx_coalesce_usecs_high) { 2980 netif_info(pf, drv, netdev, "Interrupt rate limit rounded down to %d\n", 2981 vsi->int_rate_limit); 2982 } 2983 2984 /* rx and tx usecs has per queue value. If user doesn't specify the 2985 * queue, apply to all queues. 2986 */ 2987 if (queue < 0) { 2988 for (i = 0; i < vsi->num_queue_pairs; i++) 2989 i40e_set_itr_per_queue(vsi, ec, i); 2990 } else { 2991 i40e_set_itr_per_queue(vsi, ec, queue); 2992 } 2993 2994 return 0; 2995 } 2996 2997 /** 2998 * i40e_set_coalesce - set coalesce settings for every queue on the netdev 2999 * @netdev: the netdev to change 3000 * @ec: ethtool coalesce settings 3001 * @kernel_coal: ethtool CQE mode setting structure 3002 * @extack: extack for reporting error messages 3003 * 3004 * This will set each queue to the same coalesce settings. 3005 **/ 3006 static int i40e_set_coalesce(struct net_device *netdev, 3007 struct ethtool_coalesce *ec, 3008 struct kernel_ethtool_coalesce *kernel_coal, 3009 struct netlink_ext_ack *extack) 3010 { 3011 return __i40e_set_coalesce(netdev, ec, -1); 3012 } 3013 3014 /** 3015 * i40e_set_per_queue_coalesce - set specific queue's coalesce settings 3016 * @netdev: the netdev to change 3017 * @ec: ethtool's coalesce settings 3018 * @queue: the queue to change 3019 * 3020 * Sets the specified queue's coalesce settings. 3021 **/ 3022 static int i40e_set_per_queue_coalesce(struct net_device *netdev, u32 queue, 3023 struct ethtool_coalesce *ec) 3024 { 3025 return __i40e_set_coalesce(netdev, ec, queue); 3026 } 3027 3028 /** 3029 * i40e_get_rss_hash_opts - Get RSS hash Input Set for each flow type 3030 * @pf: pointer to the physical function struct 3031 * @cmd: ethtool rxnfc command 3032 * 3033 * Returns Success if the flow is supported, else Invalid Input. 3034 **/ 3035 static int i40e_get_rss_hash_opts(struct i40e_pf *pf, struct ethtool_rxnfc *cmd) 3036 { 3037 struct i40e_hw *hw = &pf->hw; 3038 u8 flow_pctype = 0; 3039 u64 i_set = 0; 3040 3041 cmd->data = 0; 3042 3043 switch (cmd->flow_type) { 3044 case TCP_V4_FLOW: 3045 flow_pctype = I40E_FILTER_PCTYPE_NONF_IPV4_TCP; 3046 break; 3047 case UDP_V4_FLOW: 3048 flow_pctype = I40E_FILTER_PCTYPE_NONF_IPV4_UDP; 3049 break; 3050 case TCP_V6_FLOW: 3051 flow_pctype = I40E_FILTER_PCTYPE_NONF_IPV6_TCP; 3052 break; 3053 case UDP_V6_FLOW: 3054 flow_pctype = I40E_FILTER_PCTYPE_NONF_IPV6_UDP; 3055 break; 3056 case SCTP_V4_FLOW: 3057 case AH_ESP_V4_FLOW: 3058 case AH_V4_FLOW: 3059 case ESP_V4_FLOW: 3060 case IPV4_FLOW: 3061 case SCTP_V6_FLOW: 3062 case AH_ESP_V6_FLOW: 3063 case AH_V6_FLOW: 3064 case ESP_V6_FLOW: 3065 case IPV6_FLOW: 3066 /* Default is src/dest for IP, no matter the L4 hashing */ 3067 cmd->data |= RXH_IP_SRC | RXH_IP_DST; 3068 break; 3069 default: 3070 return -EINVAL; 3071 } 3072 3073 /* Read flow based hash input set register */ 3074 if (flow_pctype) { 3075 i_set = (u64)i40e_read_rx_ctl(hw, I40E_GLQF_HASH_INSET(0, 3076 flow_pctype)) | 3077 ((u64)i40e_read_rx_ctl(hw, I40E_GLQF_HASH_INSET(1, 3078 flow_pctype)) << 32); 3079 } 3080 3081 /* Process bits of hash input set */ 3082 if (i_set) { 3083 if (i_set & I40E_L4_SRC_MASK) 3084 cmd->data |= RXH_L4_B_0_1; 3085 if (i_set & I40E_L4_DST_MASK) 3086 cmd->data |= RXH_L4_B_2_3; 3087 3088 if (cmd->flow_type == TCP_V4_FLOW || 3089 cmd->flow_type == UDP_V4_FLOW) { 3090 if (i_set & I40E_L3_SRC_MASK) 3091 cmd->data |= RXH_IP_SRC; 3092 if (i_set & I40E_L3_DST_MASK) 3093 cmd->data |= RXH_IP_DST; 3094 } else if (cmd->flow_type == TCP_V6_FLOW || 3095 cmd->flow_type == UDP_V6_FLOW) { 3096 if (i_set & I40E_L3_V6_SRC_MASK) 3097 cmd->data |= RXH_IP_SRC; 3098 if (i_set & I40E_L3_V6_DST_MASK) 3099 cmd->data |= RXH_IP_DST; 3100 } 3101 } 3102 3103 return 0; 3104 } 3105 3106 /** 3107 * i40e_check_mask - Check whether a mask field is set 3108 * @mask: the full mask value 3109 * @field: mask of the field to check 3110 * 3111 * If the given mask is fully set, return positive value. If the mask for the 3112 * field is fully unset, return zero. Otherwise return a negative error code. 3113 **/ 3114 static int i40e_check_mask(u64 mask, u64 field) 3115 { 3116 u64 value = mask & field; 3117 3118 if (value == field) 3119 return 1; 3120 else if (!value) 3121 return 0; 3122 else 3123 return -1; 3124 } 3125 3126 /** 3127 * i40e_parse_rx_flow_user_data - Deconstruct user-defined data 3128 * @fsp: pointer to rx flow specification 3129 * @data: pointer to userdef data structure for storage 3130 * 3131 * Read the user-defined data and deconstruct the value into a structure. No 3132 * other code should read the user-defined data, so as to ensure that every 3133 * place consistently reads the value correctly. 3134 * 3135 * The user-defined field is a 64bit Big Endian format value, which we 3136 * deconstruct by reading bits or bit fields from it. Single bit flags shall 3137 * be defined starting from the highest bits, while small bit field values 3138 * shall be defined starting from the lowest bits. 3139 * 3140 * Returns 0 if the data is valid, and non-zero if the userdef data is invalid 3141 * and the filter should be rejected. The data structure will always be 3142 * modified even if FLOW_EXT is not set. 3143 * 3144 **/ 3145 static int i40e_parse_rx_flow_user_data(struct ethtool_rx_flow_spec *fsp, 3146 struct i40e_rx_flow_userdef *data) 3147 { 3148 u64 value, mask; 3149 int valid; 3150 3151 /* Zero memory first so it's always consistent. */ 3152 memset(data, 0, sizeof(*data)); 3153 3154 if (!(fsp->flow_type & FLOW_EXT)) 3155 return 0; 3156 3157 value = be64_to_cpu(*((__be64 *)fsp->h_ext.data)); 3158 mask = be64_to_cpu(*((__be64 *)fsp->m_ext.data)); 3159 3160 #define I40E_USERDEF_FLEX_WORD GENMASK_ULL(15, 0) 3161 #define I40E_USERDEF_FLEX_OFFSET GENMASK_ULL(31, 16) 3162 #define I40E_USERDEF_FLEX_FILTER GENMASK_ULL(31, 0) 3163 3164 valid = i40e_check_mask(mask, I40E_USERDEF_FLEX_FILTER); 3165 if (valid < 0) { 3166 return -EINVAL; 3167 } else if (valid) { 3168 data->flex_word = value & I40E_USERDEF_FLEX_WORD; 3169 data->flex_offset = 3170 (value & I40E_USERDEF_FLEX_OFFSET) >> 16; 3171 data->flex_filter = true; 3172 } 3173 3174 return 0; 3175 } 3176 3177 /** 3178 * i40e_fill_rx_flow_user_data - Fill in user-defined data field 3179 * @fsp: pointer to rx_flow specification 3180 * @data: pointer to return userdef data 3181 * 3182 * Reads the userdef data structure and properly fills in the user defined 3183 * fields of the rx_flow_spec. 3184 **/ 3185 static void i40e_fill_rx_flow_user_data(struct ethtool_rx_flow_spec *fsp, 3186 struct i40e_rx_flow_userdef *data) 3187 { 3188 u64 value = 0, mask = 0; 3189 3190 if (data->flex_filter) { 3191 value |= data->flex_word; 3192 value |= (u64)data->flex_offset << 16; 3193 mask |= I40E_USERDEF_FLEX_FILTER; 3194 } 3195 3196 if (value || mask) 3197 fsp->flow_type |= FLOW_EXT; 3198 3199 *((__be64 *)fsp->h_ext.data) = cpu_to_be64(value); 3200 *((__be64 *)fsp->m_ext.data) = cpu_to_be64(mask); 3201 } 3202 3203 /** 3204 * i40e_get_ethtool_fdir_all - Populates the rule count of a command 3205 * @pf: Pointer to the physical function struct 3206 * @cmd: The command to get or set Rx flow classification rules 3207 * @rule_locs: Array of used rule locations 3208 * 3209 * This function populates both the total and actual rule count of 3210 * the ethtool flow classification command 3211 * 3212 * Returns 0 on success or -EMSGSIZE if entry not found 3213 **/ 3214 static int i40e_get_ethtool_fdir_all(struct i40e_pf *pf, 3215 struct ethtool_rxnfc *cmd, 3216 u32 *rule_locs) 3217 { 3218 struct i40e_fdir_filter *rule; 3219 struct hlist_node *node2; 3220 int cnt = 0; 3221 3222 /* report total rule count */ 3223 cmd->data = i40e_get_fd_cnt_all(pf); 3224 3225 hlist_for_each_entry_safe(rule, node2, 3226 &pf->fdir_filter_list, fdir_node) { 3227 if (cnt == cmd->rule_cnt) 3228 return -EMSGSIZE; 3229 3230 rule_locs[cnt] = rule->fd_id; 3231 cnt++; 3232 } 3233 3234 cmd->rule_cnt = cnt; 3235 3236 return 0; 3237 } 3238 3239 /** 3240 * i40e_get_ethtool_fdir_entry - Look up a filter based on Rx flow 3241 * @pf: Pointer to the physical function struct 3242 * @cmd: The command to get or set Rx flow classification rules 3243 * 3244 * This function looks up a filter based on the Rx flow classification 3245 * command and fills the flow spec info for it if found 3246 * 3247 * Returns 0 on success or -EINVAL if filter not found 3248 **/ 3249 static int i40e_get_ethtool_fdir_entry(struct i40e_pf *pf, 3250 struct ethtool_rxnfc *cmd) 3251 { 3252 struct ethtool_rx_flow_spec *fsp = 3253 (struct ethtool_rx_flow_spec *)&cmd->fs; 3254 struct i40e_rx_flow_userdef userdef = {0}; 3255 struct i40e_fdir_filter *rule = NULL; 3256 struct hlist_node *node2; 3257 u64 input_set; 3258 u16 index; 3259 3260 hlist_for_each_entry_safe(rule, node2, 3261 &pf->fdir_filter_list, fdir_node) { 3262 if (fsp->location <= rule->fd_id) 3263 break; 3264 } 3265 3266 if (!rule || fsp->location != rule->fd_id) 3267 return -EINVAL; 3268 3269 fsp->flow_type = rule->flow_type; 3270 if (fsp->flow_type == IP_USER_FLOW) { 3271 fsp->h_u.usr_ip4_spec.ip_ver = ETH_RX_NFC_IP4; 3272 fsp->h_u.usr_ip4_spec.proto = 0; 3273 fsp->m_u.usr_ip4_spec.proto = 0; 3274 } 3275 3276 if (fsp->flow_type == IPV6_USER_FLOW || 3277 fsp->flow_type == UDP_V6_FLOW || 3278 fsp->flow_type == TCP_V6_FLOW || 3279 fsp->flow_type == SCTP_V6_FLOW) { 3280 /* Reverse the src and dest notion, since the HW views them 3281 * from Tx perspective where as the user expects it from 3282 * Rx filter view. 3283 */ 3284 fsp->h_u.tcp_ip6_spec.psrc = rule->dst_port; 3285 fsp->h_u.tcp_ip6_spec.pdst = rule->src_port; 3286 memcpy(fsp->h_u.tcp_ip6_spec.ip6dst, rule->src_ip6, 3287 sizeof(__be32) * 4); 3288 memcpy(fsp->h_u.tcp_ip6_spec.ip6src, rule->dst_ip6, 3289 sizeof(__be32) * 4); 3290 } else { 3291 /* Reverse the src and dest notion, since the HW views them 3292 * from Tx perspective where as the user expects it from 3293 * Rx filter view. 3294 */ 3295 fsp->h_u.tcp_ip4_spec.psrc = rule->dst_port; 3296 fsp->h_u.tcp_ip4_spec.pdst = rule->src_port; 3297 fsp->h_u.tcp_ip4_spec.ip4src = rule->dst_ip; 3298 fsp->h_u.tcp_ip4_spec.ip4dst = rule->src_ip; 3299 } 3300 3301 switch (rule->flow_type) { 3302 case SCTP_V4_FLOW: 3303 index = I40E_FILTER_PCTYPE_NONF_IPV4_SCTP; 3304 break; 3305 case TCP_V4_FLOW: 3306 index = I40E_FILTER_PCTYPE_NONF_IPV4_TCP; 3307 break; 3308 case UDP_V4_FLOW: 3309 index = I40E_FILTER_PCTYPE_NONF_IPV4_UDP; 3310 break; 3311 case SCTP_V6_FLOW: 3312 index = I40E_FILTER_PCTYPE_NONF_IPV6_SCTP; 3313 break; 3314 case TCP_V6_FLOW: 3315 index = I40E_FILTER_PCTYPE_NONF_IPV6_TCP; 3316 break; 3317 case UDP_V6_FLOW: 3318 index = I40E_FILTER_PCTYPE_NONF_IPV6_UDP; 3319 break; 3320 case IP_USER_FLOW: 3321 index = I40E_FILTER_PCTYPE_NONF_IPV4_OTHER; 3322 break; 3323 case IPV6_USER_FLOW: 3324 index = I40E_FILTER_PCTYPE_NONF_IPV6_OTHER; 3325 break; 3326 default: 3327 /* If we have stored a filter with a flow type not listed here 3328 * it is almost certainly a driver bug. WARN(), and then 3329 * assign the input_set as if all fields are enabled to avoid 3330 * reading unassigned memory. 3331 */ 3332 WARN(1, "Missing input set index for flow_type %d\n", 3333 rule->flow_type); 3334 input_set = 0xFFFFFFFFFFFFFFFFULL; 3335 goto no_input_set; 3336 } 3337 3338 input_set = i40e_read_fd_input_set(pf, index); 3339 3340 no_input_set: 3341 if (input_set & I40E_L3_V6_SRC_MASK) { 3342 fsp->m_u.tcp_ip6_spec.ip6src[0] = htonl(0xFFFFFFFF); 3343 fsp->m_u.tcp_ip6_spec.ip6src[1] = htonl(0xFFFFFFFF); 3344 fsp->m_u.tcp_ip6_spec.ip6src[2] = htonl(0xFFFFFFFF); 3345 fsp->m_u.tcp_ip6_spec.ip6src[3] = htonl(0xFFFFFFFF); 3346 } 3347 3348 if (input_set & I40E_L3_V6_DST_MASK) { 3349 fsp->m_u.tcp_ip6_spec.ip6dst[0] = htonl(0xFFFFFFFF); 3350 fsp->m_u.tcp_ip6_spec.ip6dst[1] = htonl(0xFFFFFFFF); 3351 fsp->m_u.tcp_ip6_spec.ip6dst[2] = htonl(0xFFFFFFFF); 3352 fsp->m_u.tcp_ip6_spec.ip6dst[3] = htonl(0xFFFFFFFF); 3353 } 3354 3355 if (input_set & I40E_L3_SRC_MASK) 3356 fsp->m_u.tcp_ip4_spec.ip4src = htonl(0xFFFFFFFF); 3357 3358 if (input_set & I40E_L3_DST_MASK) 3359 fsp->m_u.tcp_ip4_spec.ip4dst = htonl(0xFFFFFFFF); 3360 3361 if (input_set & I40E_L4_SRC_MASK) 3362 fsp->m_u.tcp_ip4_spec.psrc = htons(0xFFFF); 3363 3364 if (input_set & I40E_L4_DST_MASK) 3365 fsp->m_u.tcp_ip4_spec.pdst = htons(0xFFFF); 3366 3367 if (rule->dest_ctl == I40E_FILTER_PROGRAM_DESC_DEST_DROP_PACKET) 3368 fsp->ring_cookie = RX_CLS_FLOW_DISC; 3369 else 3370 fsp->ring_cookie = rule->q_index; 3371 3372 if (rule->vlan_tag) { 3373 fsp->h_ext.vlan_etype = rule->vlan_etype; 3374 fsp->m_ext.vlan_etype = htons(0xFFFF); 3375 fsp->h_ext.vlan_tci = rule->vlan_tag; 3376 fsp->m_ext.vlan_tci = htons(0xFFFF); 3377 fsp->flow_type |= FLOW_EXT; 3378 } 3379 3380 if (rule->dest_vsi != pf->vsi[pf->lan_vsi]->id) { 3381 struct i40e_vsi *vsi; 3382 3383 vsi = i40e_find_vsi_from_id(pf, rule->dest_vsi); 3384 if (vsi && vsi->type == I40E_VSI_SRIOV) { 3385 /* VFs are zero-indexed by the driver, but ethtool 3386 * expects them to be one-indexed, so add one here 3387 */ 3388 u64 ring_vf = vsi->vf_id + 1; 3389 3390 ring_vf <<= ETHTOOL_RX_FLOW_SPEC_RING_VF_OFF; 3391 fsp->ring_cookie |= ring_vf; 3392 } 3393 } 3394 3395 if (rule->flex_filter) { 3396 userdef.flex_filter = true; 3397 userdef.flex_word = be16_to_cpu(rule->flex_word); 3398 userdef.flex_offset = rule->flex_offset; 3399 } 3400 3401 i40e_fill_rx_flow_user_data(fsp, &userdef); 3402 3403 return 0; 3404 } 3405 3406 /** 3407 * i40e_get_rxnfc - command to get RX flow classification rules 3408 * @netdev: network interface device structure 3409 * @cmd: ethtool rxnfc command 3410 * @rule_locs: pointer to store rule data 3411 * 3412 * Returns Success if the command is supported. 3413 **/ 3414 static int i40e_get_rxnfc(struct net_device *netdev, struct ethtool_rxnfc *cmd, 3415 u32 *rule_locs) 3416 { 3417 struct i40e_netdev_priv *np = netdev_priv(netdev); 3418 struct i40e_vsi *vsi = np->vsi; 3419 struct i40e_pf *pf = vsi->back; 3420 int ret = -EOPNOTSUPP; 3421 3422 switch (cmd->cmd) { 3423 case ETHTOOL_GRXRINGS: 3424 cmd->data = vsi->rss_size; 3425 ret = 0; 3426 break; 3427 case ETHTOOL_GRXFH: 3428 ret = i40e_get_rss_hash_opts(pf, cmd); 3429 break; 3430 case ETHTOOL_GRXCLSRLCNT: 3431 cmd->rule_cnt = pf->fdir_pf_active_filters; 3432 /* report total rule count */ 3433 cmd->data = i40e_get_fd_cnt_all(pf); 3434 ret = 0; 3435 break; 3436 case ETHTOOL_GRXCLSRULE: 3437 ret = i40e_get_ethtool_fdir_entry(pf, cmd); 3438 break; 3439 case ETHTOOL_GRXCLSRLALL: 3440 ret = i40e_get_ethtool_fdir_all(pf, cmd, rule_locs); 3441 break; 3442 default: 3443 break; 3444 } 3445 3446 return ret; 3447 } 3448 3449 /** 3450 * i40e_get_rss_hash_bits - Read RSS Hash bits from register 3451 * @nfc: pointer to user request 3452 * @i_setc: bits currently set 3453 * 3454 * Returns value of bits to be set per user request 3455 **/ 3456 static u64 i40e_get_rss_hash_bits(struct ethtool_rxnfc *nfc, u64 i_setc) 3457 { 3458 u64 i_set = i_setc; 3459 u64 src_l3 = 0, dst_l3 = 0; 3460 3461 if (nfc->data & RXH_L4_B_0_1) 3462 i_set |= I40E_L4_SRC_MASK; 3463 else 3464 i_set &= ~I40E_L4_SRC_MASK; 3465 if (nfc->data & RXH_L4_B_2_3) 3466 i_set |= I40E_L4_DST_MASK; 3467 else 3468 i_set &= ~I40E_L4_DST_MASK; 3469 3470 if (nfc->flow_type == TCP_V6_FLOW || nfc->flow_type == UDP_V6_FLOW) { 3471 src_l3 = I40E_L3_V6_SRC_MASK; 3472 dst_l3 = I40E_L3_V6_DST_MASK; 3473 } else if (nfc->flow_type == TCP_V4_FLOW || 3474 nfc->flow_type == UDP_V4_FLOW) { 3475 src_l3 = I40E_L3_SRC_MASK; 3476 dst_l3 = I40E_L3_DST_MASK; 3477 } else { 3478 /* Any other flow type are not supported here */ 3479 return i_set; 3480 } 3481 3482 if (nfc->data & RXH_IP_SRC) 3483 i_set |= src_l3; 3484 else 3485 i_set &= ~src_l3; 3486 if (nfc->data & RXH_IP_DST) 3487 i_set |= dst_l3; 3488 else 3489 i_set &= ~dst_l3; 3490 3491 return i_set; 3492 } 3493 3494 /** 3495 * i40e_set_rss_hash_opt - Enable/Disable flow types for RSS hash 3496 * @pf: pointer to the physical function struct 3497 * @nfc: ethtool rxnfc command 3498 * 3499 * Returns Success if the flow input set is supported. 3500 **/ 3501 static int i40e_set_rss_hash_opt(struct i40e_pf *pf, struct ethtool_rxnfc *nfc) 3502 { 3503 struct i40e_hw *hw = &pf->hw; 3504 u64 hena = (u64)i40e_read_rx_ctl(hw, I40E_PFQF_HENA(0)) | 3505 ((u64)i40e_read_rx_ctl(hw, I40E_PFQF_HENA(1)) << 32); 3506 u8 flow_pctype = 0; 3507 u64 i_set, i_setc; 3508 3509 if (pf->flags & I40E_FLAG_MFP_ENABLED) { 3510 dev_err(&pf->pdev->dev, 3511 "Change of RSS hash input set is not supported when MFP mode is enabled\n"); 3512 return -EOPNOTSUPP; 3513 } 3514 3515 /* RSS does not support anything other than hashing 3516 * to queues on src and dst IPs and ports 3517 */ 3518 if (nfc->data & ~(RXH_IP_SRC | RXH_IP_DST | 3519 RXH_L4_B_0_1 | RXH_L4_B_2_3)) 3520 return -EINVAL; 3521 3522 switch (nfc->flow_type) { 3523 case TCP_V4_FLOW: 3524 flow_pctype = I40E_FILTER_PCTYPE_NONF_IPV4_TCP; 3525 if (pf->hw_features & I40E_HW_MULTIPLE_TCP_UDP_RSS_PCTYPE) 3526 hena |= 3527 BIT_ULL(I40E_FILTER_PCTYPE_NONF_IPV4_TCP_SYN_NO_ACK); 3528 break; 3529 case TCP_V6_FLOW: 3530 flow_pctype = I40E_FILTER_PCTYPE_NONF_IPV6_TCP; 3531 if (pf->hw_features & I40E_HW_MULTIPLE_TCP_UDP_RSS_PCTYPE) 3532 hena |= 3533 BIT_ULL(I40E_FILTER_PCTYPE_NONF_IPV4_TCP_SYN_NO_ACK); 3534 if (pf->hw_features & I40E_HW_MULTIPLE_TCP_UDP_RSS_PCTYPE) 3535 hena |= 3536 BIT_ULL(I40E_FILTER_PCTYPE_NONF_IPV6_TCP_SYN_NO_ACK); 3537 break; 3538 case UDP_V4_FLOW: 3539 flow_pctype = I40E_FILTER_PCTYPE_NONF_IPV4_UDP; 3540 if (pf->hw_features & I40E_HW_MULTIPLE_TCP_UDP_RSS_PCTYPE) 3541 hena |= 3542 BIT_ULL(I40E_FILTER_PCTYPE_NONF_UNICAST_IPV4_UDP) | 3543 BIT_ULL(I40E_FILTER_PCTYPE_NONF_MULTICAST_IPV4_UDP); 3544 3545 hena |= BIT_ULL(I40E_FILTER_PCTYPE_FRAG_IPV4); 3546 break; 3547 case UDP_V6_FLOW: 3548 flow_pctype = I40E_FILTER_PCTYPE_NONF_IPV6_UDP; 3549 if (pf->hw_features & I40E_HW_MULTIPLE_TCP_UDP_RSS_PCTYPE) 3550 hena |= 3551 BIT_ULL(I40E_FILTER_PCTYPE_NONF_UNICAST_IPV6_UDP) | 3552 BIT_ULL(I40E_FILTER_PCTYPE_NONF_MULTICAST_IPV6_UDP); 3553 3554 hena |= BIT_ULL(I40E_FILTER_PCTYPE_FRAG_IPV6); 3555 break; 3556 case AH_ESP_V4_FLOW: 3557 case AH_V4_FLOW: 3558 case ESP_V4_FLOW: 3559 case SCTP_V4_FLOW: 3560 if ((nfc->data & RXH_L4_B_0_1) || 3561 (nfc->data & RXH_L4_B_2_3)) 3562 return -EINVAL; 3563 hena |= BIT_ULL(I40E_FILTER_PCTYPE_NONF_IPV4_OTHER); 3564 break; 3565 case AH_ESP_V6_FLOW: 3566 case AH_V6_FLOW: 3567 case ESP_V6_FLOW: 3568 case SCTP_V6_FLOW: 3569 if ((nfc->data & RXH_L4_B_0_1) || 3570 (nfc->data & RXH_L4_B_2_3)) 3571 return -EINVAL; 3572 hena |= BIT_ULL(I40E_FILTER_PCTYPE_NONF_IPV6_OTHER); 3573 break; 3574 case IPV4_FLOW: 3575 hena |= BIT_ULL(I40E_FILTER_PCTYPE_NONF_IPV4_OTHER) | 3576 BIT_ULL(I40E_FILTER_PCTYPE_FRAG_IPV4); 3577 break; 3578 case IPV6_FLOW: 3579 hena |= BIT_ULL(I40E_FILTER_PCTYPE_NONF_IPV6_OTHER) | 3580 BIT_ULL(I40E_FILTER_PCTYPE_FRAG_IPV6); 3581 break; 3582 default: 3583 return -EINVAL; 3584 } 3585 3586 if (flow_pctype) { 3587 i_setc = (u64)i40e_read_rx_ctl(hw, I40E_GLQF_HASH_INSET(0, 3588 flow_pctype)) | 3589 ((u64)i40e_read_rx_ctl(hw, I40E_GLQF_HASH_INSET(1, 3590 flow_pctype)) << 32); 3591 i_set = i40e_get_rss_hash_bits(nfc, i_setc); 3592 i40e_write_rx_ctl(hw, I40E_GLQF_HASH_INSET(0, flow_pctype), 3593 (u32)i_set); 3594 i40e_write_rx_ctl(hw, I40E_GLQF_HASH_INSET(1, flow_pctype), 3595 (u32)(i_set >> 32)); 3596 hena |= BIT_ULL(flow_pctype); 3597 } 3598 3599 i40e_write_rx_ctl(hw, I40E_PFQF_HENA(0), (u32)hena); 3600 i40e_write_rx_ctl(hw, I40E_PFQF_HENA(1), (u32)(hena >> 32)); 3601 i40e_flush(hw); 3602 3603 return 0; 3604 } 3605 3606 /** 3607 * i40e_update_ethtool_fdir_entry - Updates the fdir filter entry 3608 * @vsi: Pointer to the targeted VSI 3609 * @input: The filter to update or NULL to indicate deletion 3610 * @sw_idx: Software index to the filter 3611 * @cmd: The command to get or set Rx flow classification rules 3612 * 3613 * This function updates (or deletes) a Flow Director entry from 3614 * the hlist of the corresponding PF 3615 * 3616 * Returns 0 on success 3617 **/ 3618 static int i40e_update_ethtool_fdir_entry(struct i40e_vsi *vsi, 3619 struct i40e_fdir_filter *input, 3620 u16 sw_idx, 3621 struct ethtool_rxnfc *cmd) 3622 { 3623 struct i40e_fdir_filter *rule, *parent; 3624 struct i40e_pf *pf = vsi->back; 3625 struct hlist_node *node2; 3626 int err = -EINVAL; 3627 3628 parent = NULL; 3629 rule = NULL; 3630 3631 hlist_for_each_entry_safe(rule, node2, 3632 &pf->fdir_filter_list, fdir_node) { 3633 /* hash found, or no matching entry */ 3634 if (rule->fd_id >= sw_idx) 3635 break; 3636 parent = rule; 3637 } 3638 3639 /* if there is an old rule occupying our place remove it */ 3640 if (rule && (rule->fd_id == sw_idx)) { 3641 /* Remove this rule, since we're either deleting it, or 3642 * replacing it. 3643 */ 3644 err = i40e_add_del_fdir(vsi, rule, false); 3645 hlist_del(&rule->fdir_node); 3646 kfree(rule); 3647 pf->fdir_pf_active_filters--; 3648 } 3649 3650 /* If we weren't given an input, this is a delete, so just return the 3651 * error code indicating if there was an entry at the requested slot 3652 */ 3653 if (!input) 3654 return err; 3655 3656 /* Otherwise, install the new rule as requested */ 3657 INIT_HLIST_NODE(&input->fdir_node); 3658 3659 /* add filter to the list */ 3660 if (parent) 3661 hlist_add_behind(&input->fdir_node, &parent->fdir_node); 3662 else 3663 hlist_add_head(&input->fdir_node, 3664 &pf->fdir_filter_list); 3665 3666 /* update counts */ 3667 pf->fdir_pf_active_filters++; 3668 3669 return 0; 3670 } 3671 3672 /** 3673 * i40e_prune_flex_pit_list - Cleanup unused entries in FLX_PIT table 3674 * @pf: pointer to PF structure 3675 * 3676 * This function searches the list of filters and determines which FLX_PIT 3677 * entries are still required. It will prune any entries which are no longer 3678 * in use after the deletion. 3679 **/ 3680 static void i40e_prune_flex_pit_list(struct i40e_pf *pf) 3681 { 3682 struct i40e_flex_pit *entry, *tmp; 3683 struct i40e_fdir_filter *rule; 3684 3685 /* First, we'll check the l3 table */ 3686 list_for_each_entry_safe(entry, tmp, &pf->l3_flex_pit_list, list) { 3687 bool found = false; 3688 3689 hlist_for_each_entry(rule, &pf->fdir_filter_list, fdir_node) { 3690 if (rule->flow_type != IP_USER_FLOW) 3691 continue; 3692 if (rule->flex_filter && 3693 rule->flex_offset == entry->src_offset) { 3694 found = true; 3695 break; 3696 } 3697 } 3698 3699 /* If we didn't find the filter, then we can prune this entry 3700 * from the list. 3701 */ 3702 if (!found) { 3703 list_del(&entry->list); 3704 kfree(entry); 3705 } 3706 } 3707 3708 /* Followed by the L4 table */ 3709 list_for_each_entry_safe(entry, tmp, &pf->l4_flex_pit_list, list) { 3710 bool found = false; 3711 3712 hlist_for_each_entry(rule, &pf->fdir_filter_list, fdir_node) { 3713 /* Skip this filter if it's L3, since we already 3714 * checked those in the above loop 3715 */ 3716 if (rule->flow_type == IP_USER_FLOW) 3717 continue; 3718 if (rule->flex_filter && 3719 rule->flex_offset == entry->src_offset) { 3720 found = true; 3721 break; 3722 } 3723 } 3724 3725 /* If we didn't find the filter, then we can prune this entry 3726 * from the list. 3727 */ 3728 if (!found) { 3729 list_del(&entry->list); 3730 kfree(entry); 3731 } 3732 } 3733 } 3734 3735 /** 3736 * i40e_del_fdir_entry - Deletes a Flow Director filter entry 3737 * @vsi: Pointer to the targeted VSI 3738 * @cmd: The command to get or set Rx flow classification rules 3739 * 3740 * The function removes a Flow Director filter entry from the 3741 * hlist of the corresponding PF 3742 * 3743 * Returns 0 on success 3744 */ 3745 static int i40e_del_fdir_entry(struct i40e_vsi *vsi, 3746 struct ethtool_rxnfc *cmd) 3747 { 3748 struct ethtool_rx_flow_spec *fsp = 3749 (struct ethtool_rx_flow_spec *)&cmd->fs; 3750 struct i40e_pf *pf = vsi->back; 3751 int ret = 0; 3752 3753 if (test_bit(__I40E_RESET_RECOVERY_PENDING, pf->state) || 3754 test_bit(__I40E_RESET_INTR_RECEIVED, pf->state)) 3755 return -EBUSY; 3756 3757 if (test_bit(__I40E_FD_FLUSH_REQUESTED, pf->state)) 3758 return -EBUSY; 3759 3760 ret = i40e_update_ethtool_fdir_entry(vsi, NULL, fsp->location, cmd); 3761 3762 i40e_prune_flex_pit_list(pf); 3763 3764 i40e_fdir_check_and_reenable(pf); 3765 return ret; 3766 } 3767 3768 /** 3769 * i40e_unused_pit_index - Find an unused PIT index for given list 3770 * @pf: the PF data structure 3771 * 3772 * Find the first unused flexible PIT index entry. We search both the L3 and 3773 * L4 flexible PIT lists so that the returned index is unique and unused by 3774 * either currently programmed L3 or L4 filters. We use a bit field as storage 3775 * to track which indexes are already used. 3776 **/ 3777 static u8 i40e_unused_pit_index(struct i40e_pf *pf) 3778 { 3779 unsigned long available_index = 0xFF; 3780 struct i40e_flex_pit *entry; 3781 3782 /* We need to make sure that the new index isn't in use by either L3 3783 * or L4 filters so that IP_USER_FLOW filters can program both L3 and 3784 * L4 to use the same index. 3785 */ 3786 3787 list_for_each_entry(entry, &pf->l4_flex_pit_list, list) 3788 clear_bit(entry->pit_index, &available_index); 3789 3790 list_for_each_entry(entry, &pf->l3_flex_pit_list, list) 3791 clear_bit(entry->pit_index, &available_index); 3792 3793 return find_first_bit(&available_index, 8); 3794 } 3795 3796 /** 3797 * i40e_find_flex_offset - Find an existing flex src_offset 3798 * @flex_pit_list: L3 or L4 flex PIT list 3799 * @src_offset: new src_offset to find 3800 * 3801 * Searches the flex_pit_list for an existing offset. If no offset is 3802 * currently programmed, then this will return an ERR_PTR if there is no space 3803 * to add a new offset, otherwise it returns NULL. 3804 **/ 3805 static 3806 struct i40e_flex_pit *i40e_find_flex_offset(struct list_head *flex_pit_list, 3807 u16 src_offset) 3808 { 3809 struct i40e_flex_pit *entry; 3810 int size = 0; 3811 3812 /* Search for the src_offset first. If we find a matching entry 3813 * already programmed, we can simply re-use it. 3814 */ 3815 list_for_each_entry(entry, flex_pit_list, list) { 3816 size++; 3817 if (entry->src_offset == src_offset) 3818 return entry; 3819 } 3820 3821 /* If we haven't found an entry yet, then the provided src offset has 3822 * not yet been programmed. We will program the src offset later on, 3823 * but we need to indicate whether there is enough space to do so 3824 * here. We'll make use of ERR_PTR for this purpose. 3825 */ 3826 if (size >= I40E_FLEX_PIT_TABLE_SIZE) 3827 return ERR_PTR(-ENOSPC); 3828 3829 return NULL; 3830 } 3831 3832 /** 3833 * i40e_add_flex_offset - Add src_offset to flex PIT table list 3834 * @flex_pit_list: L3 or L4 flex PIT list 3835 * @src_offset: new src_offset to add 3836 * @pit_index: the PIT index to program 3837 * 3838 * This function programs the new src_offset to the list. It is expected that 3839 * i40e_find_flex_offset has already been tried and returned NULL, indicating 3840 * that this offset is not programmed, and that the list has enough space to 3841 * store another offset. 3842 * 3843 * Returns 0 on success, and negative value on error. 3844 **/ 3845 static int i40e_add_flex_offset(struct list_head *flex_pit_list, 3846 u16 src_offset, 3847 u8 pit_index) 3848 { 3849 struct i40e_flex_pit *new_pit, *entry; 3850 3851 new_pit = kzalloc(sizeof(*entry), GFP_KERNEL); 3852 if (!new_pit) 3853 return -ENOMEM; 3854 3855 new_pit->src_offset = src_offset; 3856 new_pit->pit_index = pit_index; 3857 3858 /* We need to insert this item such that the list is sorted by 3859 * src_offset in ascending order. 3860 */ 3861 list_for_each_entry(entry, flex_pit_list, list) { 3862 if (new_pit->src_offset < entry->src_offset) { 3863 list_add_tail(&new_pit->list, &entry->list); 3864 return 0; 3865 } 3866 3867 /* If we found an entry with our offset already programmed we 3868 * can simply return here, after freeing the memory. However, 3869 * if the pit_index does not match we need to report an error. 3870 */ 3871 if (new_pit->src_offset == entry->src_offset) { 3872 int err = 0; 3873 3874 /* If the PIT index is not the same we can't re-use 3875 * the entry, so we must report an error. 3876 */ 3877 if (new_pit->pit_index != entry->pit_index) 3878 err = -EINVAL; 3879 3880 kfree(new_pit); 3881 return err; 3882 } 3883 } 3884 3885 /* If we reached here, then we haven't yet added the item. This means 3886 * that we should add the item at the end of the list. 3887 */ 3888 list_add_tail(&new_pit->list, flex_pit_list); 3889 return 0; 3890 } 3891 3892 /** 3893 * __i40e_reprogram_flex_pit - Re-program specific FLX_PIT table 3894 * @pf: Pointer to the PF structure 3895 * @flex_pit_list: list of flexible src offsets in use 3896 * @flex_pit_start: index to first entry for this section of the table 3897 * 3898 * In order to handle flexible data, the hardware uses a table of values 3899 * called the FLX_PIT table. This table is used to indicate which sections of 3900 * the input correspond to what PIT index values. Unfortunately, hardware is 3901 * very restrictive about programming this table. Entries must be ordered by 3902 * src_offset in ascending order, without duplicates. Additionally, unused 3903 * entries must be set to the unused index value, and must have valid size and 3904 * length according to the src_offset ordering. 3905 * 3906 * This function will reprogram the FLX_PIT register from a book-keeping 3907 * structure that we guarantee is already ordered correctly, and has no more 3908 * than 3 entries. 3909 * 3910 * To make things easier, we only support flexible values of one word length, 3911 * rather than allowing variable length flexible values. 3912 **/ 3913 static void __i40e_reprogram_flex_pit(struct i40e_pf *pf, 3914 struct list_head *flex_pit_list, 3915 int flex_pit_start) 3916 { 3917 struct i40e_flex_pit *entry = NULL; 3918 u16 last_offset = 0; 3919 int i = 0, j = 0; 3920 3921 /* First, loop over the list of flex PIT entries, and reprogram the 3922 * registers. 3923 */ 3924 list_for_each_entry(entry, flex_pit_list, list) { 3925 /* We have to be careful when programming values for the 3926 * largest SRC_OFFSET value. It is possible that adding 3927 * additional empty values at the end would overflow the space 3928 * for the SRC_OFFSET in the FLX_PIT register. To avoid this, 3929 * we check here and add the empty values prior to adding the 3930 * largest value. 3931 * 3932 * To determine this, we will use a loop from i+1 to 3, which 3933 * will determine whether the unused entries would have valid 3934 * SRC_OFFSET. Note that there cannot be extra entries past 3935 * this value, because the only valid values would have been 3936 * larger than I40E_MAX_FLEX_SRC_OFFSET, and thus would not 3937 * have been added to the list in the first place. 3938 */ 3939 for (j = i + 1; j < 3; j++) { 3940 u16 offset = entry->src_offset + j; 3941 int index = flex_pit_start + i; 3942 u32 value = I40E_FLEX_PREP_VAL(I40E_FLEX_DEST_UNUSED, 3943 1, 3944 offset - 3); 3945 3946 if (offset > I40E_MAX_FLEX_SRC_OFFSET) { 3947 i40e_write_rx_ctl(&pf->hw, 3948 I40E_PRTQF_FLX_PIT(index), 3949 value); 3950 i++; 3951 } 3952 } 3953 3954 /* Now, we can program the actual value into the table */ 3955 i40e_write_rx_ctl(&pf->hw, 3956 I40E_PRTQF_FLX_PIT(flex_pit_start + i), 3957 I40E_FLEX_PREP_VAL(entry->pit_index + 50, 3958 1, 3959 entry->src_offset)); 3960 i++; 3961 } 3962 3963 /* In order to program the last entries in the table, we need to 3964 * determine the valid offset. If the list is empty, we'll just start 3965 * with 0. Otherwise, we'll start with the last item offset and add 1. 3966 * This ensures that all entries have valid sizes. If we don't do this 3967 * correctly, the hardware will disable flexible field parsing. 3968 */ 3969 if (!list_empty(flex_pit_list)) 3970 last_offset = list_prev_entry(entry, list)->src_offset + 1; 3971 3972 for (; i < 3; i++, last_offset++) { 3973 i40e_write_rx_ctl(&pf->hw, 3974 I40E_PRTQF_FLX_PIT(flex_pit_start + i), 3975 I40E_FLEX_PREP_VAL(I40E_FLEX_DEST_UNUSED, 3976 1, 3977 last_offset)); 3978 } 3979 } 3980 3981 /** 3982 * i40e_reprogram_flex_pit - Reprogram all FLX_PIT tables after input set change 3983 * @pf: pointer to the PF structure 3984 * 3985 * This function reprograms both the L3 and L4 FLX_PIT tables. See the 3986 * internal helper function for implementation details. 3987 **/ 3988 static void i40e_reprogram_flex_pit(struct i40e_pf *pf) 3989 { 3990 __i40e_reprogram_flex_pit(pf, &pf->l3_flex_pit_list, 3991 I40E_FLEX_PIT_IDX_START_L3); 3992 3993 __i40e_reprogram_flex_pit(pf, &pf->l4_flex_pit_list, 3994 I40E_FLEX_PIT_IDX_START_L4); 3995 3996 /* We also need to program the L3 and L4 GLQF ORT register */ 3997 i40e_write_rx_ctl(&pf->hw, 3998 I40E_GLQF_ORT(I40E_L3_GLQF_ORT_IDX), 3999 I40E_ORT_PREP_VAL(I40E_FLEX_PIT_IDX_START_L3, 4000 3, 1)); 4001 4002 i40e_write_rx_ctl(&pf->hw, 4003 I40E_GLQF_ORT(I40E_L4_GLQF_ORT_IDX), 4004 I40E_ORT_PREP_VAL(I40E_FLEX_PIT_IDX_START_L4, 4005 3, 1)); 4006 } 4007 4008 /** 4009 * i40e_flow_str - Converts a flow_type into a human readable string 4010 * @fsp: the flow specification 4011 * 4012 * Currently only flow types we support are included here, and the string 4013 * value attempts to match what ethtool would use to configure this flow type. 4014 **/ 4015 static const char *i40e_flow_str(struct ethtool_rx_flow_spec *fsp) 4016 { 4017 switch (fsp->flow_type & ~FLOW_EXT) { 4018 case TCP_V4_FLOW: 4019 return "tcp4"; 4020 case UDP_V4_FLOW: 4021 return "udp4"; 4022 case SCTP_V4_FLOW: 4023 return "sctp4"; 4024 case IP_USER_FLOW: 4025 return "ip4"; 4026 case TCP_V6_FLOW: 4027 return "tcp6"; 4028 case UDP_V6_FLOW: 4029 return "udp6"; 4030 case SCTP_V6_FLOW: 4031 return "sctp6"; 4032 case IPV6_USER_FLOW: 4033 return "ip6"; 4034 default: 4035 return "unknown"; 4036 } 4037 } 4038 4039 /** 4040 * i40e_pit_index_to_mask - Return the FLEX mask for a given PIT index 4041 * @pit_index: PIT index to convert 4042 * 4043 * Returns the mask for a given PIT index. Will return 0 if the pit_index is 4044 * of range. 4045 **/ 4046 static u64 i40e_pit_index_to_mask(int pit_index) 4047 { 4048 switch (pit_index) { 4049 case 0: 4050 return I40E_FLEX_50_MASK; 4051 case 1: 4052 return I40E_FLEX_51_MASK; 4053 case 2: 4054 return I40E_FLEX_52_MASK; 4055 case 3: 4056 return I40E_FLEX_53_MASK; 4057 case 4: 4058 return I40E_FLEX_54_MASK; 4059 case 5: 4060 return I40E_FLEX_55_MASK; 4061 case 6: 4062 return I40E_FLEX_56_MASK; 4063 case 7: 4064 return I40E_FLEX_57_MASK; 4065 default: 4066 return 0; 4067 } 4068 } 4069 4070 /** 4071 * i40e_print_input_set - Show changes between two input sets 4072 * @vsi: the vsi being configured 4073 * @old: the old input set 4074 * @new: the new input set 4075 * 4076 * Print the difference between old and new input sets by showing which series 4077 * of words are toggled on or off. Only displays the bits we actually support 4078 * changing. 4079 **/ 4080 static void i40e_print_input_set(struct i40e_vsi *vsi, u64 old, u64 new) 4081 { 4082 struct i40e_pf *pf = vsi->back; 4083 bool old_value, new_value; 4084 int i; 4085 4086 old_value = !!(old & I40E_L3_SRC_MASK); 4087 new_value = !!(new & I40E_L3_SRC_MASK); 4088 if (old_value != new_value) 4089 netif_info(pf, drv, vsi->netdev, "L3 source address: %s -> %s\n", 4090 old_value ? "ON" : "OFF", 4091 new_value ? "ON" : "OFF"); 4092 4093 old_value = !!(old & I40E_L3_DST_MASK); 4094 new_value = !!(new & I40E_L3_DST_MASK); 4095 if (old_value != new_value) 4096 netif_info(pf, drv, vsi->netdev, "L3 destination address: %s -> %s\n", 4097 old_value ? "ON" : "OFF", 4098 new_value ? "ON" : "OFF"); 4099 4100 old_value = !!(old & I40E_L4_SRC_MASK); 4101 new_value = !!(new & I40E_L4_SRC_MASK); 4102 if (old_value != new_value) 4103 netif_info(pf, drv, vsi->netdev, "L4 source port: %s -> %s\n", 4104 old_value ? "ON" : "OFF", 4105 new_value ? "ON" : "OFF"); 4106 4107 old_value = !!(old & I40E_L4_DST_MASK); 4108 new_value = !!(new & I40E_L4_DST_MASK); 4109 if (old_value != new_value) 4110 netif_info(pf, drv, vsi->netdev, "L4 destination port: %s -> %s\n", 4111 old_value ? "ON" : "OFF", 4112 new_value ? "ON" : "OFF"); 4113 4114 old_value = !!(old & I40E_VERIFY_TAG_MASK); 4115 new_value = !!(new & I40E_VERIFY_TAG_MASK); 4116 if (old_value != new_value) 4117 netif_info(pf, drv, vsi->netdev, "SCTP verification tag: %s -> %s\n", 4118 old_value ? "ON" : "OFF", 4119 new_value ? "ON" : "OFF"); 4120 4121 /* Show change of flexible filter entries */ 4122 for (i = 0; i < I40E_FLEX_INDEX_ENTRIES; i++) { 4123 u64 flex_mask = i40e_pit_index_to_mask(i); 4124 4125 old_value = !!(old & flex_mask); 4126 new_value = !!(new & flex_mask); 4127 if (old_value != new_value) 4128 netif_info(pf, drv, vsi->netdev, "FLEX index %d: %s -> %s\n", 4129 i, 4130 old_value ? "ON" : "OFF", 4131 new_value ? "ON" : "OFF"); 4132 } 4133 4134 netif_info(pf, drv, vsi->netdev, " Current input set: %0llx\n", 4135 old); 4136 netif_info(pf, drv, vsi->netdev, "Requested input set: %0llx\n", 4137 new); 4138 } 4139 4140 /** 4141 * i40e_check_fdir_input_set - Check that a given rx_flow_spec mask is valid 4142 * @vsi: pointer to the targeted VSI 4143 * @fsp: pointer to Rx flow specification 4144 * @userdef: userdefined data from flow specification 4145 * 4146 * Ensures that a given ethtool_rx_flow_spec has a valid mask. Some support 4147 * for partial matches exists with a few limitations. First, hardware only 4148 * supports masking by word boundary (2 bytes) and not per individual bit. 4149 * Second, hardware is limited to using one mask for a flow type and cannot 4150 * use a separate mask for each filter. 4151 * 4152 * To support these limitations, if we already have a configured filter for 4153 * the specified type, this function enforces that new filters of the type 4154 * match the configured input set. Otherwise, if we do not have a filter of 4155 * the specified type, we allow the input set to be updated to match the 4156 * desired filter. 4157 * 4158 * To help ensure that administrators understand why filters weren't displayed 4159 * as supported, we print a diagnostic message displaying how the input set 4160 * would change and warning to delete the preexisting filters if required. 4161 * 4162 * Returns 0 on successful input set match, and a negative return code on 4163 * failure. 4164 **/ 4165 static int i40e_check_fdir_input_set(struct i40e_vsi *vsi, 4166 struct ethtool_rx_flow_spec *fsp, 4167 struct i40e_rx_flow_userdef *userdef) 4168 { 4169 static const __be32 ipv6_full_mask[4] = {cpu_to_be32(0xffffffff), 4170 cpu_to_be32(0xffffffff), cpu_to_be32(0xffffffff), 4171 cpu_to_be32(0xffffffff)}; 4172 struct ethtool_tcpip6_spec *tcp_ip6_spec; 4173 struct ethtool_usrip6_spec *usr_ip6_spec; 4174 struct ethtool_tcpip4_spec *tcp_ip4_spec; 4175 struct ethtool_usrip4_spec *usr_ip4_spec; 4176 struct i40e_pf *pf = vsi->back; 4177 u64 current_mask, new_mask; 4178 bool new_flex_offset = false; 4179 bool flex_l3 = false; 4180 u16 *fdir_filter_count; 4181 u16 index, src_offset = 0; 4182 u8 pit_index = 0; 4183 int err; 4184 4185 switch (fsp->flow_type & ~FLOW_EXT) { 4186 case SCTP_V4_FLOW: 4187 index = I40E_FILTER_PCTYPE_NONF_IPV4_SCTP; 4188 fdir_filter_count = &pf->fd_sctp4_filter_cnt; 4189 break; 4190 case TCP_V4_FLOW: 4191 index = I40E_FILTER_PCTYPE_NONF_IPV4_TCP; 4192 fdir_filter_count = &pf->fd_tcp4_filter_cnt; 4193 break; 4194 case UDP_V4_FLOW: 4195 index = I40E_FILTER_PCTYPE_NONF_IPV4_UDP; 4196 fdir_filter_count = &pf->fd_udp4_filter_cnt; 4197 break; 4198 case SCTP_V6_FLOW: 4199 index = I40E_FILTER_PCTYPE_NONF_IPV6_SCTP; 4200 fdir_filter_count = &pf->fd_sctp6_filter_cnt; 4201 break; 4202 case TCP_V6_FLOW: 4203 index = I40E_FILTER_PCTYPE_NONF_IPV6_TCP; 4204 fdir_filter_count = &pf->fd_tcp6_filter_cnt; 4205 break; 4206 case UDP_V6_FLOW: 4207 index = I40E_FILTER_PCTYPE_NONF_IPV6_UDP; 4208 fdir_filter_count = &pf->fd_udp6_filter_cnt; 4209 break; 4210 case IP_USER_FLOW: 4211 index = I40E_FILTER_PCTYPE_NONF_IPV4_OTHER; 4212 fdir_filter_count = &pf->fd_ip4_filter_cnt; 4213 flex_l3 = true; 4214 break; 4215 case IPV6_USER_FLOW: 4216 index = I40E_FILTER_PCTYPE_NONF_IPV6_OTHER; 4217 fdir_filter_count = &pf->fd_ip6_filter_cnt; 4218 flex_l3 = true; 4219 break; 4220 default: 4221 return -EOPNOTSUPP; 4222 } 4223 4224 /* Read the current input set from register memory. */ 4225 current_mask = i40e_read_fd_input_set(pf, index); 4226 new_mask = current_mask; 4227 4228 /* Determine, if any, the required changes to the input set in order 4229 * to support the provided mask. 4230 * 4231 * Hardware only supports masking at word (2 byte) granularity and does 4232 * not support full bitwise masking. This implementation simplifies 4233 * even further and only supports fully enabled or fully disabled 4234 * masks for each field, even though we could split the ip4src and 4235 * ip4dst fields. 4236 */ 4237 switch (fsp->flow_type & ~FLOW_EXT) { 4238 case SCTP_V4_FLOW: 4239 new_mask &= ~I40E_VERIFY_TAG_MASK; 4240 fallthrough; 4241 case TCP_V4_FLOW: 4242 case UDP_V4_FLOW: 4243 tcp_ip4_spec = &fsp->m_u.tcp_ip4_spec; 4244 4245 /* IPv4 source address */ 4246 if (tcp_ip4_spec->ip4src == htonl(0xFFFFFFFF)) 4247 new_mask |= I40E_L3_SRC_MASK; 4248 else if (!tcp_ip4_spec->ip4src) 4249 new_mask &= ~I40E_L3_SRC_MASK; 4250 else 4251 return -EOPNOTSUPP; 4252 4253 /* IPv4 destination address */ 4254 if (tcp_ip4_spec->ip4dst == htonl(0xFFFFFFFF)) 4255 new_mask |= I40E_L3_DST_MASK; 4256 else if (!tcp_ip4_spec->ip4dst) 4257 new_mask &= ~I40E_L3_DST_MASK; 4258 else 4259 return -EOPNOTSUPP; 4260 4261 /* L4 source port */ 4262 if (tcp_ip4_spec->psrc == htons(0xFFFF)) 4263 new_mask |= I40E_L4_SRC_MASK; 4264 else if (!tcp_ip4_spec->psrc) 4265 new_mask &= ~I40E_L4_SRC_MASK; 4266 else 4267 return -EOPNOTSUPP; 4268 4269 /* L4 destination port */ 4270 if (tcp_ip4_spec->pdst == htons(0xFFFF)) 4271 new_mask |= I40E_L4_DST_MASK; 4272 else if (!tcp_ip4_spec->pdst) 4273 new_mask &= ~I40E_L4_DST_MASK; 4274 else 4275 return -EOPNOTSUPP; 4276 4277 /* Filtering on Type of Service is not supported. */ 4278 if (tcp_ip4_spec->tos) 4279 return -EOPNOTSUPP; 4280 4281 break; 4282 case SCTP_V6_FLOW: 4283 new_mask &= ~I40E_VERIFY_TAG_MASK; 4284 fallthrough; 4285 case TCP_V6_FLOW: 4286 case UDP_V6_FLOW: 4287 tcp_ip6_spec = &fsp->m_u.tcp_ip6_spec; 4288 4289 /* Check if user provided IPv6 source address. */ 4290 if (ipv6_addr_equal((struct in6_addr *)&tcp_ip6_spec->ip6src, 4291 (struct in6_addr *)&ipv6_full_mask)) 4292 new_mask |= I40E_L3_V6_SRC_MASK; 4293 else if (ipv6_addr_any((struct in6_addr *) 4294 &tcp_ip6_spec->ip6src)) 4295 new_mask &= ~I40E_L3_V6_SRC_MASK; 4296 else 4297 return -EOPNOTSUPP; 4298 4299 /* Check if user provided destination address. */ 4300 if (ipv6_addr_equal((struct in6_addr *)&tcp_ip6_spec->ip6dst, 4301 (struct in6_addr *)&ipv6_full_mask)) 4302 new_mask |= I40E_L3_V6_DST_MASK; 4303 else if (ipv6_addr_any((struct in6_addr *) 4304 &tcp_ip6_spec->ip6dst)) 4305 new_mask &= ~I40E_L3_V6_DST_MASK; 4306 else 4307 return -EOPNOTSUPP; 4308 4309 /* L4 source port */ 4310 if (tcp_ip6_spec->psrc == htons(0xFFFF)) 4311 new_mask |= I40E_L4_SRC_MASK; 4312 else if (!tcp_ip6_spec->psrc) 4313 new_mask &= ~I40E_L4_SRC_MASK; 4314 else 4315 return -EOPNOTSUPP; 4316 4317 /* L4 destination port */ 4318 if (tcp_ip6_spec->pdst == htons(0xFFFF)) 4319 new_mask |= I40E_L4_DST_MASK; 4320 else if (!tcp_ip6_spec->pdst) 4321 new_mask &= ~I40E_L4_DST_MASK; 4322 else 4323 return -EOPNOTSUPP; 4324 4325 /* Filtering on Traffic Classes is not supported. */ 4326 if (tcp_ip6_spec->tclass) 4327 return -EOPNOTSUPP; 4328 break; 4329 case IP_USER_FLOW: 4330 usr_ip4_spec = &fsp->m_u.usr_ip4_spec; 4331 4332 /* IPv4 source address */ 4333 if (usr_ip4_spec->ip4src == htonl(0xFFFFFFFF)) 4334 new_mask |= I40E_L3_SRC_MASK; 4335 else if (!usr_ip4_spec->ip4src) 4336 new_mask &= ~I40E_L3_SRC_MASK; 4337 else 4338 return -EOPNOTSUPP; 4339 4340 /* IPv4 destination address */ 4341 if (usr_ip4_spec->ip4dst == htonl(0xFFFFFFFF)) 4342 new_mask |= I40E_L3_DST_MASK; 4343 else if (!usr_ip4_spec->ip4dst) 4344 new_mask &= ~I40E_L3_DST_MASK; 4345 else 4346 return -EOPNOTSUPP; 4347 4348 /* First 4 bytes of L4 header */ 4349 if (usr_ip4_spec->l4_4_bytes == htonl(0xFFFFFFFF)) 4350 new_mask |= I40E_L4_SRC_MASK | I40E_L4_DST_MASK; 4351 else if (!usr_ip4_spec->l4_4_bytes) 4352 new_mask &= ~(I40E_L4_SRC_MASK | I40E_L4_DST_MASK); 4353 else 4354 return -EOPNOTSUPP; 4355 4356 /* Filtering on Type of Service is not supported. */ 4357 if (usr_ip4_spec->tos) 4358 return -EOPNOTSUPP; 4359 4360 /* Filtering on IP version is not supported */ 4361 if (usr_ip4_spec->ip_ver) 4362 return -EINVAL; 4363 4364 /* Filtering on L4 protocol is not supported */ 4365 if (usr_ip4_spec->proto) 4366 return -EINVAL; 4367 4368 break; 4369 case IPV6_USER_FLOW: 4370 usr_ip6_spec = &fsp->m_u.usr_ip6_spec; 4371 4372 /* Check if user provided IPv6 source address. */ 4373 if (ipv6_addr_equal((struct in6_addr *)&usr_ip6_spec->ip6src, 4374 (struct in6_addr *)&ipv6_full_mask)) 4375 new_mask |= I40E_L3_V6_SRC_MASK; 4376 else if (ipv6_addr_any((struct in6_addr *) 4377 &usr_ip6_spec->ip6src)) 4378 new_mask &= ~I40E_L3_V6_SRC_MASK; 4379 else 4380 return -EOPNOTSUPP; 4381 4382 /* Check if user provided destination address. */ 4383 if (ipv6_addr_equal((struct in6_addr *)&usr_ip6_spec->ip6dst, 4384 (struct in6_addr *)&ipv6_full_mask)) 4385 new_mask |= I40E_L3_V6_DST_MASK; 4386 else if (ipv6_addr_any((struct in6_addr *) 4387 &usr_ip6_spec->ip6src)) 4388 new_mask &= ~I40E_L3_V6_DST_MASK; 4389 else 4390 return -EOPNOTSUPP; 4391 4392 if (usr_ip6_spec->l4_4_bytes == htonl(0xFFFFFFFF)) 4393 new_mask |= I40E_L4_SRC_MASK | I40E_L4_DST_MASK; 4394 else if (!usr_ip6_spec->l4_4_bytes) 4395 new_mask &= ~(I40E_L4_SRC_MASK | I40E_L4_DST_MASK); 4396 else 4397 return -EOPNOTSUPP; 4398 4399 /* Filtering on Traffic class is not supported. */ 4400 if (usr_ip6_spec->tclass) 4401 return -EOPNOTSUPP; 4402 4403 /* Filtering on L4 protocol is not supported */ 4404 if (usr_ip6_spec->l4_proto) 4405 return -EINVAL; 4406 4407 break; 4408 default: 4409 return -EOPNOTSUPP; 4410 } 4411 4412 if (fsp->flow_type & FLOW_EXT) { 4413 /* Allow only 802.1Q and no etype defined, as 4414 * later it's modified to 0x8100 4415 */ 4416 if (fsp->h_ext.vlan_etype != htons(ETH_P_8021Q) && 4417 fsp->h_ext.vlan_etype != 0) 4418 return -EOPNOTSUPP; 4419 if (fsp->m_ext.vlan_tci == htons(0xFFFF)) 4420 new_mask |= I40E_VLAN_SRC_MASK; 4421 else 4422 new_mask &= ~I40E_VLAN_SRC_MASK; 4423 } 4424 4425 /* First, clear all flexible filter entries */ 4426 new_mask &= ~I40E_FLEX_INPUT_MASK; 4427 4428 /* If we have a flexible filter, try to add this offset to the correct 4429 * flexible filter PIT list. Once finished, we can update the mask. 4430 * If the src_offset changed, we will get a new mask value which will 4431 * trigger an input set change. 4432 */ 4433 if (userdef->flex_filter) { 4434 struct i40e_flex_pit *l3_flex_pit = NULL, *flex_pit = NULL; 4435 4436 /* Flexible offset must be even, since the flexible payload 4437 * must be aligned on 2-byte boundary. 4438 */ 4439 if (userdef->flex_offset & 0x1) { 4440 dev_warn(&pf->pdev->dev, 4441 "Flexible data offset must be 2-byte aligned\n"); 4442 return -EINVAL; 4443 } 4444 4445 src_offset = userdef->flex_offset >> 1; 4446 4447 /* FLX_PIT source offset value is only so large */ 4448 if (src_offset > I40E_MAX_FLEX_SRC_OFFSET) { 4449 dev_warn(&pf->pdev->dev, 4450 "Flexible data must reside within first 64 bytes of the packet payload\n"); 4451 return -EINVAL; 4452 } 4453 4454 /* See if this offset has already been programmed. If we get 4455 * an ERR_PTR, then the filter is not safe to add. Otherwise, 4456 * if we get a NULL pointer, this means we will need to add 4457 * the offset. 4458 */ 4459 flex_pit = i40e_find_flex_offset(&pf->l4_flex_pit_list, 4460 src_offset); 4461 if (IS_ERR(flex_pit)) 4462 return PTR_ERR(flex_pit); 4463 4464 /* IP_USER_FLOW filters match both L4 (ICMP) and L3 (unknown) 4465 * packet types, and thus we need to program both L3 and L4 4466 * flexible values. These must have identical flexible index, 4467 * as otherwise we can't correctly program the input set. So 4468 * we'll find both an L3 and L4 index and make sure they are 4469 * the same. 4470 */ 4471 if (flex_l3) { 4472 l3_flex_pit = 4473 i40e_find_flex_offset(&pf->l3_flex_pit_list, 4474 src_offset); 4475 if (IS_ERR(l3_flex_pit)) 4476 return PTR_ERR(l3_flex_pit); 4477 4478 if (flex_pit) { 4479 /* If we already had a matching L4 entry, we 4480 * need to make sure that the L3 entry we 4481 * obtained uses the same index. 4482 */ 4483 if (l3_flex_pit) { 4484 if (l3_flex_pit->pit_index != 4485 flex_pit->pit_index) { 4486 return -EINVAL; 4487 } 4488 } else { 4489 new_flex_offset = true; 4490 } 4491 } else { 4492 flex_pit = l3_flex_pit; 4493 } 4494 } 4495 4496 /* If we didn't find an existing flex offset, we need to 4497 * program a new one. However, we don't immediately program it 4498 * here because we will wait to program until after we check 4499 * that it is safe to change the input set. 4500 */ 4501 if (!flex_pit) { 4502 new_flex_offset = true; 4503 pit_index = i40e_unused_pit_index(pf); 4504 } else { 4505 pit_index = flex_pit->pit_index; 4506 } 4507 4508 /* Update the mask with the new offset */ 4509 new_mask |= i40e_pit_index_to_mask(pit_index); 4510 } 4511 4512 /* If the mask and flexible filter offsets for this filter match the 4513 * currently programmed values we don't need any input set change, so 4514 * this filter is safe to install. 4515 */ 4516 if (new_mask == current_mask && !new_flex_offset) 4517 return 0; 4518 4519 netif_info(pf, drv, vsi->netdev, "Input set change requested for %s flows:\n", 4520 i40e_flow_str(fsp)); 4521 i40e_print_input_set(vsi, current_mask, new_mask); 4522 if (new_flex_offset) { 4523 netif_info(pf, drv, vsi->netdev, "FLEX index %d: Offset -> %d", 4524 pit_index, src_offset); 4525 } 4526 4527 /* Hardware input sets are global across multiple ports, so even the 4528 * main port cannot change them when in MFP mode as this would impact 4529 * any filters on the other ports. 4530 */ 4531 if (pf->flags & I40E_FLAG_MFP_ENABLED) { 4532 netif_err(pf, drv, vsi->netdev, "Cannot change Flow Director input sets while MFP is enabled\n"); 4533 return -EOPNOTSUPP; 4534 } 4535 4536 /* This filter requires us to update the input set. However, hardware 4537 * only supports one input set per flow type, and does not support 4538 * separate masks for each filter. This means that we can only support 4539 * a single mask for all filters of a specific type. 4540 * 4541 * If we have preexisting filters, they obviously depend on the 4542 * current programmed input set. Display a diagnostic message in this 4543 * case explaining why the filter could not be accepted. 4544 */ 4545 if (*fdir_filter_count) { 4546 netif_err(pf, drv, vsi->netdev, "Cannot change input set for %s flows until %d preexisting filters are removed\n", 4547 i40e_flow_str(fsp), 4548 *fdir_filter_count); 4549 return -EOPNOTSUPP; 4550 } 4551 4552 i40e_write_fd_input_set(pf, index, new_mask); 4553 4554 /* IP_USER_FLOW filters match both IPv4/Other and IPv4/Fragmented 4555 * frames. If we're programming the input set for IPv4/Other, we also 4556 * need to program the IPv4/Fragmented input set. Since we don't have 4557 * separate support, we'll always assume and enforce that the two flow 4558 * types must have matching input sets. 4559 */ 4560 if (index == I40E_FILTER_PCTYPE_NONF_IPV4_OTHER) 4561 i40e_write_fd_input_set(pf, I40E_FILTER_PCTYPE_FRAG_IPV4, 4562 new_mask); 4563 4564 /* Add the new offset and update table, if necessary */ 4565 if (new_flex_offset) { 4566 err = i40e_add_flex_offset(&pf->l4_flex_pit_list, src_offset, 4567 pit_index); 4568 if (err) 4569 return err; 4570 4571 if (flex_l3) { 4572 err = i40e_add_flex_offset(&pf->l3_flex_pit_list, 4573 src_offset, 4574 pit_index); 4575 if (err) 4576 return err; 4577 } 4578 4579 i40e_reprogram_flex_pit(pf); 4580 } 4581 4582 return 0; 4583 } 4584 4585 /** 4586 * i40e_match_fdir_filter - Return true of two filters match 4587 * @a: pointer to filter struct 4588 * @b: pointer to filter struct 4589 * 4590 * Returns true if the two filters match exactly the same criteria. I.e. they 4591 * match the same flow type and have the same parameters. We don't need to 4592 * check any input-set since all filters of the same flow type must use the 4593 * same input set. 4594 **/ 4595 static bool i40e_match_fdir_filter(struct i40e_fdir_filter *a, 4596 struct i40e_fdir_filter *b) 4597 { 4598 /* The filters do not much if any of these criteria differ. */ 4599 if (a->dst_ip != b->dst_ip || 4600 a->src_ip != b->src_ip || 4601 a->dst_port != b->dst_port || 4602 a->src_port != b->src_port || 4603 a->flow_type != b->flow_type || 4604 a->ipl4_proto != b->ipl4_proto || 4605 a->vlan_tag != b->vlan_tag || 4606 a->vlan_etype != b->vlan_etype) 4607 return false; 4608 4609 return true; 4610 } 4611 4612 /** 4613 * i40e_disallow_matching_filters - Check that new filters differ 4614 * @vsi: pointer to the targeted VSI 4615 * @input: new filter to check 4616 * 4617 * Due to hardware limitations, it is not possible for two filters that match 4618 * similar criteria to be programmed at the same time. This is true for a few 4619 * reasons: 4620 * 4621 * (a) all filters matching a particular flow type must use the same input 4622 * set, that is they must match the same criteria. 4623 * (b) different flow types will never match the same packet, as the flow type 4624 * is decided by hardware before checking which rules apply. 4625 * (c) hardware has no way to distinguish which order filters apply in. 4626 * 4627 * Due to this, we can't really support using the location data to order 4628 * filters in the hardware parsing. It is technically possible for the user to 4629 * request two filters matching the same criteria but which select different 4630 * queues. In this case, rather than keep both filters in the list, we reject 4631 * the 2nd filter when the user requests adding it. 4632 * 4633 * This avoids needing to track location for programming the filter to 4634 * hardware, and ensures that we avoid some strange scenarios involving 4635 * deleting filters which match the same criteria. 4636 **/ 4637 static int i40e_disallow_matching_filters(struct i40e_vsi *vsi, 4638 struct i40e_fdir_filter *input) 4639 { 4640 struct i40e_pf *pf = vsi->back; 4641 struct i40e_fdir_filter *rule; 4642 struct hlist_node *node2; 4643 4644 /* Loop through every filter, and check that it doesn't match */ 4645 hlist_for_each_entry_safe(rule, node2, 4646 &pf->fdir_filter_list, fdir_node) { 4647 /* Don't check the filters match if they share the same fd_id, 4648 * since the new filter is actually just updating the target 4649 * of the old filter. 4650 */ 4651 if (rule->fd_id == input->fd_id) 4652 continue; 4653 4654 /* If any filters match, then print a warning message to the 4655 * kernel message buffer and bail out. 4656 */ 4657 if (i40e_match_fdir_filter(rule, input)) { 4658 dev_warn(&pf->pdev->dev, 4659 "Existing user defined filter %d already matches this flow.\n", 4660 rule->fd_id); 4661 return -EINVAL; 4662 } 4663 } 4664 4665 return 0; 4666 } 4667 4668 /** 4669 * i40e_add_fdir_ethtool - Add/Remove Flow Director filters 4670 * @vsi: pointer to the targeted VSI 4671 * @cmd: command to get or set RX flow classification rules 4672 * 4673 * Add Flow Director filters for a specific flow spec based on their 4674 * protocol. Returns 0 if the filters were successfully added. 4675 **/ 4676 static int i40e_add_fdir_ethtool(struct i40e_vsi *vsi, 4677 struct ethtool_rxnfc *cmd) 4678 { 4679 struct i40e_rx_flow_userdef userdef; 4680 struct ethtool_rx_flow_spec *fsp; 4681 struct i40e_fdir_filter *input; 4682 u16 dest_vsi = 0, q_index = 0; 4683 struct i40e_pf *pf; 4684 int ret = -EINVAL; 4685 u8 dest_ctl; 4686 4687 if (!vsi) 4688 return -EINVAL; 4689 pf = vsi->back; 4690 4691 if (!(pf->flags & I40E_FLAG_FD_SB_ENABLED)) 4692 return -EOPNOTSUPP; 4693 4694 if (test_bit(__I40E_FD_SB_AUTO_DISABLED, pf->state)) 4695 return -ENOSPC; 4696 4697 if (test_bit(__I40E_RESET_RECOVERY_PENDING, pf->state) || 4698 test_bit(__I40E_RESET_INTR_RECEIVED, pf->state)) 4699 return -EBUSY; 4700 4701 if (test_bit(__I40E_FD_FLUSH_REQUESTED, pf->state)) 4702 return -EBUSY; 4703 4704 fsp = (struct ethtool_rx_flow_spec *)&cmd->fs; 4705 4706 /* Parse the user-defined field */ 4707 if (i40e_parse_rx_flow_user_data(fsp, &userdef)) 4708 return -EINVAL; 4709 4710 /* Extended MAC field is not supported */ 4711 if (fsp->flow_type & FLOW_MAC_EXT) 4712 return -EINVAL; 4713 4714 ret = i40e_check_fdir_input_set(vsi, fsp, &userdef); 4715 if (ret) 4716 return ret; 4717 4718 if (fsp->location >= (pf->hw.func_caps.fd_filters_best_effort + 4719 pf->hw.func_caps.fd_filters_guaranteed)) { 4720 return -EINVAL; 4721 } 4722 4723 /* ring_cookie is either the drop index, or is a mask of the queue 4724 * index and VF id we wish to target. 4725 */ 4726 if (fsp->ring_cookie == RX_CLS_FLOW_DISC) { 4727 dest_ctl = I40E_FILTER_PROGRAM_DESC_DEST_DROP_PACKET; 4728 } else { 4729 u32 ring = ethtool_get_flow_spec_ring(fsp->ring_cookie); 4730 u8 vf = ethtool_get_flow_spec_ring_vf(fsp->ring_cookie); 4731 4732 if (!vf) { 4733 if (ring >= vsi->num_queue_pairs) 4734 return -EINVAL; 4735 dest_vsi = vsi->id; 4736 } else { 4737 /* VFs are zero-indexed, so we subtract one here */ 4738 vf--; 4739 4740 if (vf >= pf->num_alloc_vfs) 4741 return -EINVAL; 4742 if (ring >= pf->vf[vf].num_queue_pairs) 4743 return -EINVAL; 4744 dest_vsi = pf->vf[vf].lan_vsi_id; 4745 } 4746 dest_ctl = I40E_FILTER_PROGRAM_DESC_DEST_DIRECT_PACKET_QINDEX; 4747 q_index = ring; 4748 } 4749 4750 input = kzalloc(sizeof(*input), GFP_KERNEL); 4751 4752 if (!input) 4753 return -ENOMEM; 4754 4755 input->fd_id = fsp->location; 4756 input->q_index = q_index; 4757 input->dest_vsi = dest_vsi; 4758 input->dest_ctl = dest_ctl; 4759 input->fd_status = I40E_FILTER_PROGRAM_DESC_FD_STATUS_FD_ID; 4760 input->cnt_index = I40E_FD_SB_STAT_IDX(pf->hw.pf_id); 4761 input->dst_ip = fsp->h_u.tcp_ip4_spec.ip4src; 4762 input->src_ip = fsp->h_u.tcp_ip4_spec.ip4dst; 4763 input->flow_type = fsp->flow_type & ~FLOW_EXT; 4764 4765 input->vlan_etype = fsp->h_ext.vlan_etype; 4766 if (!fsp->m_ext.vlan_etype && fsp->h_ext.vlan_tci) 4767 input->vlan_etype = cpu_to_be16(ETH_P_8021Q); 4768 if (fsp->m_ext.vlan_tci && input->vlan_etype) 4769 input->vlan_tag = fsp->h_ext.vlan_tci; 4770 if (input->flow_type == IPV6_USER_FLOW || 4771 input->flow_type == UDP_V6_FLOW || 4772 input->flow_type == TCP_V6_FLOW || 4773 input->flow_type == SCTP_V6_FLOW) { 4774 /* Reverse the src and dest notion, since the HW expects them 4775 * to be from Tx perspective where as the input from user is 4776 * from Rx filter view. 4777 */ 4778 input->ipl4_proto = fsp->h_u.usr_ip6_spec.l4_proto; 4779 input->dst_port = fsp->h_u.tcp_ip6_spec.psrc; 4780 input->src_port = fsp->h_u.tcp_ip6_spec.pdst; 4781 memcpy(input->dst_ip6, fsp->h_u.ah_ip6_spec.ip6src, 4782 sizeof(__be32) * 4); 4783 memcpy(input->src_ip6, fsp->h_u.ah_ip6_spec.ip6dst, 4784 sizeof(__be32) * 4); 4785 } else { 4786 /* Reverse the src and dest notion, since the HW expects them 4787 * to be from Tx perspective where as the input from user is 4788 * from Rx filter view. 4789 */ 4790 input->ipl4_proto = fsp->h_u.usr_ip4_spec.proto; 4791 input->dst_port = fsp->h_u.tcp_ip4_spec.psrc; 4792 input->src_port = fsp->h_u.tcp_ip4_spec.pdst; 4793 input->dst_ip = fsp->h_u.tcp_ip4_spec.ip4src; 4794 input->src_ip = fsp->h_u.tcp_ip4_spec.ip4dst; 4795 } 4796 4797 if (userdef.flex_filter) { 4798 input->flex_filter = true; 4799 input->flex_word = cpu_to_be16(userdef.flex_word); 4800 input->flex_offset = userdef.flex_offset; 4801 } 4802 4803 /* Avoid programming two filters with identical match criteria. */ 4804 ret = i40e_disallow_matching_filters(vsi, input); 4805 if (ret) 4806 goto free_filter_memory; 4807 4808 /* Add the input filter to the fdir_input_list, possibly replacing 4809 * a previous filter. Do not free the input structure after adding it 4810 * to the list as this would cause a use-after-free bug. 4811 */ 4812 i40e_update_ethtool_fdir_entry(vsi, input, fsp->location, NULL); 4813 ret = i40e_add_del_fdir(vsi, input, true); 4814 if (ret) 4815 goto remove_sw_rule; 4816 return 0; 4817 4818 remove_sw_rule: 4819 hlist_del(&input->fdir_node); 4820 pf->fdir_pf_active_filters--; 4821 free_filter_memory: 4822 kfree(input); 4823 return ret; 4824 } 4825 4826 /** 4827 * i40e_set_rxnfc - command to set RX flow classification rules 4828 * @netdev: network interface device structure 4829 * @cmd: ethtool rxnfc command 4830 * 4831 * Returns Success if the command is supported. 4832 **/ 4833 static int i40e_set_rxnfc(struct net_device *netdev, struct ethtool_rxnfc *cmd) 4834 { 4835 struct i40e_netdev_priv *np = netdev_priv(netdev); 4836 struct i40e_vsi *vsi = np->vsi; 4837 struct i40e_pf *pf = vsi->back; 4838 int ret = -EOPNOTSUPP; 4839 4840 switch (cmd->cmd) { 4841 case ETHTOOL_SRXFH: 4842 ret = i40e_set_rss_hash_opt(pf, cmd); 4843 break; 4844 case ETHTOOL_SRXCLSRLINS: 4845 ret = i40e_add_fdir_ethtool(vsi, cmd); 4846 break; 4847 case ETHTOOL_SRXCLSRLDEL: 4848 ret = i40e_del_fdir_entry(vsi, cmd); 4849 break; 4850 default: 4851 break; 4852 } 4853 4854 return ret; 4855 } 4856 4857 /** 4858 * i40e_max_channels - get Max number of combined channels supported 4859 * @vsi: vsi pointer 4860 **/ 4861 static unsigned int i40e_max_channels(struct i40e_vsi *vsi) 4862 { 4863 /* TODO: This code assumes DCB and FD is disabled for now. */ 4864 return vsi->alloc_queue_pairs; 4865 } 4866 4867 /** 4868 * i40e_get_channels - Get the current channels enabled and max supported etc. 4869 * @dev: network interface device structure 4870 * @ch: ethtool channels structure 4871 * 4872 * We don't support separate tx and rx queues as channels. The other count 4873 * represents how many queues are being used for control. max_combined counts 4874 * how many queue pairs we can support. They may not be mapped 1 to 1 with 4875 * q_vectors since we support a lot more queue pairs than q_vectors. 4876 **/ 4877 static void i40e_get_channels(struct net_device *dev, 4878 struct ethtool_channels *ch) 4879 { 4880 struct i40e_netdev_priv *np = netdev_priv(dev); 4881 struct i40e_vsi *vsi = np->vsi; 4882 struct i40e_pf *pf = vsi->back; 4883 4884 /* report maximum channels */ 4885 ch->max_combined = i40e_max_channels(vsi); 4886 4887 /* report info for other vector */ 4888 ch->other_count = (pf->flags & I40E_FLAG_FD_SB_ENABLED) ? 1 : 0; 4889 ch->max_other = ch->other_count; 4890 4891 /* Note: This code assumes DCB is disabled for now. */ 4892 ch->combined_count = vsi->num_queue_pairs; 4893 } 4894 4895 /** 4896 * i40e_set_channels - Set the new channels count. 4897 * @dev: network interface device structure 4898 * @ch: ethtool channels structure 4899 * 4900 * The new channels count may not be the same as requested by the user 4901 * since it gets rounded down to a power of 2 value. 4902 **/ 4903 static int i40e_set_channels(struct net_device *dev, 4904 struct ethtool_channels *ch) 4905 { 4906 const u8 drop = I40E_FILTER_PROGRAM_DESC_DEST_DROP_PACKET; 4907 struct i40e_netdev_priv *np = netdev_priv(dev); 4908 unsigned int count = ch->combined_count; 4909 struct i40e_vsi *vsi = np->vsi; 4910 struct i40e_pf *pf = vsi->back; 4911 struct i40e_fdir_filter *rule; 4912 struct hlist_node *node2; 4913 int new_count; 4914 int err = 0; 4915 4916 /* We do not support setting channels for any other VSI at present */ 4917 if (vsi->type != I40E_VSI_MAIN) 4918 return -EINVAL; 4919 4920 /* We do not support setting channels via ethtool when TCs are 4921 * configured through mqprio 4922 */ 4923 if (pf->flags & I40E_FLAG_TC_MQPRIO) 4924 return -EINVAL; 4925 4926 /* verify they are not requesting separate vectors */ 4927 if (!count || ch->rx_count || ch->tx_count) 4928 return -EINVAL; 4929 4930 /* verify other_count has not changed */ 4931 if (ch->other_count != ((pf->flags & I40E_FLAG_FD_SB_ENABLED) ? 1 : 0)) 4932 return -EINVAL; 4933 4934 /* verify the number of channels does not exceed hardware limits */ 4935 if (count > i40e_max_channels(vsi)) 4936 return -EINVAL; 4937 4938 /* verify that the number of channels does not invalidate any current 4939 * flow director rules 4940 */ 4941 hlist_for_each_entry_safe(rule, node2, 4942 &pf->fdir_filter_list, fdir_node) { 4943 if (rule->dest_ctl != drop && count <= rule->q_index) { 4944 dev_warn(&pf->pdev->dev, 4945 "Existing user defined filter %d assigns flow to queue %d\n", 4946 rule->fd_id, rule->q_index); 4947 err = -EINVAL; 4948 } 4949 } 4950 4951 if (err) { 4952 dev_err(&pf->pdev->dev, 4953 "Existing filter rules must be deleted to reduce combined channel count to %d\n", 4954 count); 4955 return err; 4956 } 4957 4958 /* update feature limits from largest to smallest supported values */ 4959 /* TODO: Flow director limit, DCB etc */ 4960 4961 /* use rss_reconfig to rebuild with new queue count and update traffic 4962 * class queue mapping 4963 */ 4964 new_count = i40e_reconfig_rss_queues(pf, count); 4965 if (new_count > 0) 4966 return 0; 4967 else 4968 return -EINVAL; 4969 } 4970 4971 /** 4972 * i40e_get_rxfh_key_size - get the RSS hash key size 4973 * @netdev: network interface device structure 4974 * 4975 * Returns the table size. 4976 **/ 4977 static u32 i40e_get_rxfh_key_size(struct net_device *netdev) 4978 { 4979 return I40E_HKEY_ARRAY_SIZE; 4980 } 4981 4982 /** 4983 * i40e_get_rxfh_indir_size - get the rx flow hash indirection table size 4984 * @netdev: network interface device structure 4985 * 4986 * Returns the table size. 4987 **/ 4988 static u32 i40e_get_rxfh_indir_size(struct net_device *netdev) 4989 { 4990 return I40E_HLUT_ARRAY_SIZE; 4991 } 4992 4993 /** 4994 * i40e_get_rxfh - get the rx flow hash indirection table 4995 * @netdev: network interface device structure 4996 * @indir: indirection table 4997 * @key: hash key 4998 * @hfunc: hash function 4999 * 5000 * Reads the indirection table directly from the hardware. Returns 0 on 5001 * success. 5002 **/ 5003 static int i40e_get_rxfh(struct net_device *netdev, u32 *indir, u8 *key, 5004 u8 *hfunc) 5005 { 5006 struct i40e_netdev_priv *np = netdev_priv(netdev); 5007 struct i40e_vsi *vsi = np->vsi; 5008 u8 *lut, *seed = NULL; 5009 int ret; 5010 u16 i; 5011 5012 if (hfunc) 5013 *hfunc = ETH_RSS_HASH_TOP; 5014 5015 if (!indir) 5016 return 0; 5017 5018 seed = key; 5019 lut = kzalloc(I40E_HLUT_ARRAY_SIZE, GFP_KERNEL); 5020 if (!lut) 5021 return -ENOMEM; 5022 ret = i40e_get_rss(vsi, seed, lut, I40E_HLUT_ARRAY_SIZE); 5023 if (ret) 5024 goto out; 5025 for (i = 0; i < I40E_HLUT_ARRAY_SIZE; i++) 5026 indir[i] = (u32)(lut[i]); 5027 5028 out: 5029 kfree(lut); 5030 5031 return ret; 5032 } 5033 5034 /** 5035 * i40e_set_rxfh - set the rx flow hash indirection table 5036 * @netdev: network interface device structure 5037 * @indir: indirection table 5038 * @key: hash key 5039 * @hfunc: hash function to use 5040 * 5041 * Returns -EINVAL if the table specifies an invalid queue id, otherwise 5042 * returns 0 after programming the table. 5043 **/ 5044 static int i40e_set_rxfh(struct net_device *netdev, const u32 *indir, 5045 const u8 *key, const u8 hfunc) 5046 { 5047 struct i40e_netdev_priv *np = netdev_priv(netdev); 5048 struct i40e_vsi *vsi = np->vsi; 5049 struct i40e_pf *pf = vsi->back; 5050 u8 *seed = NULL; 5051 u16 i; 5052 5053 if (hfunc != ETH_RSS_HASH_NO_CHANGE && hfunc != ETH_RSS_HASH_TOP) 5054 return -EOPNOTSUPP; 5055 5056 if (key) { 5057 if (!vsi->rss_hkey_user) { 5058 vsi->rss_hkey_user = kzalloc(I40E_HKEY_ARRAY_SIZE, 5059 GFP_KERNEL); 5060 if (!vsi->rss_hkey_user) 5061 return -ENOMEM; 5062 } 5063 memcpy(vsi->rss_hkey_user, key, I40E_HKEY_ARRAY_SIZE); 5064 seed = vsi->rss_hkey_user; 5065 } 5066 if (!vsi->rss_lut_user) { 5067 vsi->rss_lut_user = kzalloc(I40E_HLUT_ARRAY_SIZE, GFP_KERNEL); 5068 if (!vsi->rss_lut_user) 5069 return -ENOMEM; 5070 } 5071 5072 /* Each 32 bits pointed by 'indir' is stored with a lut entry */ 5073 if (indir) 5074 for (i = 0; i < I40E_HLUT_ARRAY_SIZE; i++) 5075 vsi->rss_lut_user[i] = (u8)(indir[i]); 5076 else 5077 i40e_fill_rss_lut(pf, vsi->rss_lut_user, I40E_HLUT_ARRAY_SIZE, 5078 vsi->rss_size); 5079 5080 return i40e_config_rss(vsi, seed, vsi->rss_lut_user, 5081 I40E_HLUT_ARRAY_SIZE); 5082 } 5083 5084 /** 5085 * i40e_get_priv_flags - report device private flags 5086 * @dev: network interface device structure 5087 * 5088 * The get string set count and the string set should be matched for each 5089 * flag returned. Add new strings for each flag to the i40e_gstrings_priv_flags 5090 * array. 5091 * 5092 * Returns a u32 bitmap of flags. 5093 **/ 5094 static u32 i40e_get_priv_flags(struct net_device *dev) 5095 { 5096 struct i40e_netdev_priv *np = netdev_priv(dev); 5097 struct i40e_vsi *vsi = np->vsi; 5098 struct i40e_pf *pf = vsi->back; 5099 u32 i, j, ret_flags = 0; 5100 5101 for (i = 0; i < I40E_PRIV_FLAGS_STR_LEN; i++) { 5102 const struct i40e_priv_flags *priv_flags; 5103 5104 priv_flags = &i40e_gstrings_priv_flags[i]; 5105 5106 if (priv_flags->flag & pf->flags) 5107 ret_flags |= BIT(i); 5108 } 5109 5110 if (pf->hw.pf_id != 0) 5111 return ret_flags; 5112 5113 for (j = 0; j < I40E_GL_PRIV_FLAGS_STR_LEN; j++) { 5114 const struct i40e_priv_flags *priv_flags; 5115 5116 priv_flags = &i40e_gl_gstrings_priv_flags[j]; 5117 5118 if (priv_flags->flag & pf->flags) 5119 ret_flags |= BIT(i + j); 5120 } 5121 5122 return ret_flags; 5123 } 5124 5125 /** 5126 * i40e_set_priv_flags - set private flags 5127 * @dev: network interface device structure 5128 * @flags: bit flags to be set 5129 **/ 5130 static int i40e_set_priv_flags(struct net_device *dev, u32 flags) 5131 { 5132 struct i40e_netdev_priv *np = netdev_priv(dev); 5133 u64 orig_flags, new_flags, changed_flags; 5134 enum i40e_admin_queue_err adq_err; 5135 struct i40e_vsi *vsi = np->vsi; 5136 struct i40e_pf *pf = vsi->back; 5137 u32 reset_needed = 0; 5138 i40e_status status; 5139 u32 i, j; 5140 5141 orig_flags = READ_ONCE(pf->flags); 5142 new_flags = orig_flags; 5143 5144 for (i = 0; i < I40E_PRIV_FLAGS_STR_LEN; i++) { 5145 const struct i40e_priv_flags *priv_flags; 5146 5147 priv_flags = &i40e_gstrings_priv_flags[i]; 5148 5149 if (flags & BIT(i)) 5150 new_flags |= priv_flags->flag; 5151 else 5152 new_flags &= ~(priv_flags->flag); 5153 5154 /* If this is a read-only flag, it can't be changed */ 5155 if (priv_flags->read_only && 5156 ((orig_flags ^ new_flags) & ~BIT(i))) 5157 return -EOPNOTSUPP; 5158 } 5159 5160 if (pf->hw.pf_id != 0) 5161 goto flags_complete; 5162 5163 for (j = 0; j < I40E_GL_PRIV_FLAGS_STR_LEN; j++) { 5164 const struct i40e_priv_flags *priv_flags; 5165 5166 priv_flags = &i40e_gl_gstrings_priv_flags[j]; 5167 5168 if (flags & BIT(i + j)) 5169 new_flags |= priv_flags->flag; 5170 else 5171 new_flags &= ~(priv_flags->flag); 5172 5173 /* If this is a read-only flag, it can't be changed */ 5174 if (priv_flags->read_only && 5175 ((orig_flags ^ new_flags) & ~BIT(i))) 5176 return -EOPNOTSUPP; 5177 } 5178 5179 flags_complete: 5180 changed_flags = orig_flags ^ new_flags; 5181 5182 if (changed_flags & I40E_FLAG_DISABLE_FW_LLDP) 5183 reset_needed = I40E_PF_RESET_AND_REBUILD_FLAG; 5184 if (changed_flags & (I40E_FLAG_VEB_STATS_ENABLED | 5185 I40E_FLAG_LEGACY_RX | I40E_FLAG_SOURCE_PRUNING_DISABLED)) 5186 reset_needed = BIT(__I40E_PF_RESET_REQUESTED); 5187 5188 /* Before we finalize any flag changes, we need to perform some 5189 * checks to ensure that the changes are supported and safe. 5190 */ 5191 5192 /* ATR eviction is not supported on all devices */ 5193 if ((new_flags & I40E_FLAG_HW_ATR_EVICT_ENABLED) && 5194 !(pf->hw_features & I40E_HW_ATR_EVICT_CAPABLE)) 5195 return -EOPNOTSUPP; 5196 5197 /* If the driver detected FW LLDP was disabled on init, this flag could 5198 * be set, however we do not support _changing_ the flag: 5199 * - on XL710 if NPAR is enabled or FW API version < 1.7 5200 * - on X722 with FW API version < 1.6 5201 * There are situations where older FW versions/NPAR enabled PFs could 5202 * disable LLDP, however we _must_ not allow the user to enable/disable 5203 * LLDP with this flag on unsupported FW versions. 5204 */ 5205 if (changed_flags & I40E_FLAG_DISABLE_FW_LLDP) { 5206 if (!(pf->hw.flags & I40E_HW_FLAG_FW_LLDP_STOPPABLE)) { 5207 dev_warn(&pf->pdev->dev, 5208 "Device does not support changing FW LLDP\n"); 5209 return -EOPNOTSUPP; 5210 } 5211 } 5212 5213 if (changed_flags & I40E_FLAG_RS_FEC && 5214 pf->hw.device_id != I40E_DEV_ID_25G_SFP28 && 5215 pf->hw.device_id != I40E_DEV_ID_25G_B) { 5216 dev_warn(&pf->pdev->dev, 5217 "Device does not support changing FEC configuration\n"); 5218 return -EOPNOTSUPP; 5219 } 5220 5221 if (changed_flags & I40E_FLAG_BASE_R_FEC && 5222 pf->hw.device_id != I40E_DEV_ID_25G_SFP28 && 5223 pf->hw.device_id != I40E_DEV_ID_25G_B && 5224 pf->hw.device_id != I40E_DEV_ID_KX_X722) { 5225 dev_warn(&pf->pdev->dev, 5226 "Device does not support changing FEC configuration\n"); 5227 return -EOPNOTSUPP; 5228 } 5229 5230 /* Process any additional changes needed as a result of flag changes. 5231 * The changed_flags value reflects the list of bits that were 5232 * changed in the code above. 5233 */ 5234 5235 /* Flush current ATR settings if ATR was disabled */ 5236 if ((changed_flags & I40E_FLAG_FD_ATR_ENABLED) && 5237 !(new_flags & I40E_FLAG_FD_ATR_ENABLED)) { 5238 set_bit(__I40E_FD_ATR_AUTO_DISABLED, pf->state); 5239 set_bit(__I40E_FD_FLUSH_REQUESTED, pf->state); 5240 } 5241 5242 if (changed_flags & I40E_FLAG_TRUE_PROMISC_SUPPORT) { 5243 u16 sw_flags = 0, valid_flags = 0; 5244 int ret; 5245 5246 if (!(new_flags & I40E_FLAG_TRUE_PROMISC_SUPPORT)) 5247 sw_flags = I40E_AQ_SET_SWITCH_CFG_PROMISC; 5248 valid_flags = I40E_AQ_SET_SWITCH_CFG_PROMISC; 5249 ret = i40e_aq_set_switch_config(&pf->hw, sw_flags, valid_flags, 5250 0, NULL); 5251 if (ret && pf->hw.aq.asq_last_status != I40E_AQ_RC_ESRCH) { 5252 dev_info(&pf->pdev->dev, 5253 "couldn't set switch config bits, err %s aq_err %s\n", 5254 i40e_stat_str(&pf->hw, ret), 5255 i40e_aq_str(&pf->hw, 5256 pf->hw.aq.asq_last_status)); 5257 /* not a fatal problem, just keep going */ 5258 } 5259 } 5260 5261 if ((changed_flags & I40E_FLAG_RS_FEC) || 5262 (changed_flags & I40E_FLAG_BASE_R_FEC)) { 5263 u8 fec_cfg = 0; 5264 5265 if (new_flags & I40E_FLAG_RS_FEC && 5266 new_flags & I40E_FLAG_BASE_R_FEC) { 5267 fec_cfg = I40E_AQ_SET_FEC_AUTO; 5268 } else if (new_flags & I40E_FLAG_RS_FEC) { 5269 fec_cfg = (I40E_AQ_SET_FEC_REQUEST_RS | 5270 I40E_AQ_SET_FEC_ABILITY_RS); 5271 } else if (new_flags & I40E_FLAG_BASE_R_FEC) { 5272 fec_cfg = (I40E_AQ_SET_FEC_REQUEST_KR | 5273 I40E_AQ_SET_FEC_ABILITY_KR); 5274 } 5275 if (i40e_set_fec_cfg(dev, fec_cfg)) 5276 dev_warn(&pf->pdev->dev, "Cannot change FEC config\n"); 5277 } 5278 5279 if ((changed_flags & I40E_FLAG_LINK_DOWN_ON_CLOSE_ENABLED) && 5280 (orig_flags & I40E_FLAG_TOTAL_PORT_SHUTDOWN_ENABLED)) { 5281 dev_err(&pf->pdev->dev, 5282 "Setting link-down-on-close not supported on this port (because total-port-shutdown is enabled)\n"); 5283 return -EOPNOTSUPP; 5284 } 5285 5286 if ((changed_flags & new_flags & 5287 I40E_FLAG_LINK_DOWN_ON_CLOSE_ENABLED) && 5288 (new_flags & I40E_FLAG_MFP_ENABLED)) 5289 dev_warn(&pf->pdev->dev, 5290 "Turning on link-down-on-close flag may affect other partitions\n"); 5291 5292 if (changed_flags & I40E_FLAG_DISABLE_FW_LLDP) { 5293 if (new_flags & I40E_FLAG_DISABLE_FW_LLDP) { 5294 #ifdef CONFIG_I40E_DCB 5295 i40e_dcb_sw_default_config(pf); 5296 #endif /* CONFIG_I40E_DCB */ 5297 i40e_aq_cfg_lldp_mib_change_event(&pf->hw, false, NULL); 5298 i40e_aq_stop_lldp(&pf->hw, true, false, NULL); 5299 } else { 5300 status = i40e_aq_start_lldp(&pf->hw, false, NULL); 5301 if (status) { 5302 adq_err = pf->hw.aq.asq_last_status; 5303 switch (adq_err) { 5304 case I40E_AQ_RC_EEXIST: 5305 dev_warn(&pf->pdev->dev, 5306 "FW LLDP agent is already running\n"); 5307 reset_needed = 0; 5308 break; 5309 case I40E_AQ_RC_EPERM: 5310 dev_warn(&pf->pdev->dev, 5311 "Device configuration forbids SW from starting the LLDP agent.\n"); 5312 return -EINVAL; 5313 case I40E_AQ_RC_EAGAIN: 5314 dev_warn(&pf->pdev->dev, 5315 "Stop FW LLDP agent command is still being processed, please try again in a second.\n"); 5316 return -EBUSY; 5317 default: 5318 dev_warn(&pf->pdev->dev, 5319 "Starting FW LLDP agent failed: error: %s, %s\n", 5320 i40e_stat_str(&pf->hw, 5321 status), 5322 i40e_aq_str(&pf->hw, 5323 adq_err)); 5324 return -EINVAL; 5325 } 5326 } 5327 } 5328 } 5329 5330 /* Now that we've checked to ensure that the new flags are valid, load 5331 * them into place. Since we only modify flags either (a) during 5332 * initialization or (b) while holding the RTNL lock, we don't need 5333 * anything fancy here. 5334 */ 5335 pf->flags = new_flags; 5336 5337 /* Issue reset to cause things to take effect, as additional bits 5338 * are added we will need to create a mask of bits requiring reset 5339 */ 5340 if (reset_needed) 5341 i40e_do_reset(pf, reset_needed, true); 5342 5343 return 0; 5344 } 5345 5346 /** 5347 * i40e_get_module_info - get (Q)SFP+ module type info 5348 * @netdev: network interface device structure 5349 * @modinfo: module EEPROM size and layout information structure 5350 **/ 5351 static int i40e_get_module_info(struct net_device *netdev, 5352 struct ethtool_modinfo *modinfo) 5353 { 5354 struct i40e_netdev_priv *np = netdev_priv(netdev); 5355 struct i40e_vsi *vsi = np->vsi; 5356 struct i40e_pf *pf = vsi->back; 5357 struct i40e_hw *hw = &pf->hw; 5358 u32 sff8472_comp = 0; 5359 u32 sff8472_swap = 0; 5360 u32 sff8636_rev = 0; 5361 i40e_status status; 5362 u32 type = 0; 5363 5364 /* Check if firmware supports reading module EEPROM. */ 5365 if (!(hw->flags & I40E_HW_FLAG_AQ_PHY_ACCESS_CAPABLE)) { 5366 netdev_err(vsi->netdev, "Module EEPROM memory read not supported. Please update the NVM image.\n"); 5367 return -EINVAL; 5368 } 5369 5370 status = i40e_update_link_info(hw); 5371 if (status) 5372 return -EIO; 5373 5374 if (hw->phy.link_info.phy_type == I40E_PHY_TYPE_EMPTY) { 5375 netdev_err(vsi->netdev, "Cannot read module EEPROM memory. No module connected.\n"); 5376 return -EINVAL; 5377 } 5378 5379 type = hw->phy.link_info.module_type[0]; 5380 5381 switch (type) { 5382 case I40E_MODULE_TYPE_SFP: 5383 status = i40e_aq_get_phy_register(hw, 5384 I40E_AQ_PHY_REG_ACCESS_EXTERNAL_MODULE, 5385 I40E_I2C_EEPROM_DEV_ADDR, true, 5386 I40E_MODULE_SFF_8472_COMP, 5387 &sff8472_comp, NULL); 5388 if (status) 5389 return -EIO; 5390 5391 status = i40e_aq_get_phy_register(hw, 5392 I40E_AQ_PHY_REG_ACCESS_EXTERNAL_MODULE, 5393 I40E_I2C_EEPROM_DEV_ADDR, true, 5394 I40E_MODULE_SFF_8472_SWAP, 5395 &sff8472_swap, NULL); 5396 if (status) 5397 return -EIO; 5398 5399 /* Check if the module requires address swap to access 5400 * the other EEPROM memory page. 5401 */ 5402 if (sff8472_swap & I40E_MODULE_SFF_ADDR_MODE) { 5403 netdev_warn(vsi->netdev, "Module address swap to access page 0xA2 is not supported.\n"); 5404 modinfo->type = ETH_MODULE_SFF_8079; 5405 modinfo->eeprom_len = ETH_MODULE_SFF_8079_LEN; 5406 } else if (sff8472_comp == 0x00) { 5407 /* Module is not SFF-8472 compliant */ 5408 modinfo->type = ETH_MODULE_SFF_8079; 5409 modinfo->eeprom_len = ETH_MODULE_SFF_8079_LEN; 5410 } else if (!(sff8472_swap & I40E_MODULE_SFF_DDM_IMPLEMENTED)) { 5411 /* Module is SFF-8472 compliant but doesn't implement 5412 * Digital Diagnostic Monitoring (DDM). 5413 */ 5414 modinfo->type = ETH_MODULE_SFF_8079; 5415 modinfo->eeprom_len = ETH_MODULE_SFF_8079_LEN; 5416 } else { 5417 modinfo->type = ETH_MODULE_SFF_8472; 5418 modinfo->eeprom_len = ETH_MODULE_SFF_8472_LEN; 5419 } 5420 break; 5421 case I40E_MODULE_TYPE_QSFP_PLUS: 5422 /* Read from memory page 0. */ 5423 status = i40e_aq_get_phy_register(hw, 5424 I40E_AQ_PHY_REG_ACCESS_EXTERNAL_MODULE, 5425 0, true, 5426 I40E_MODULE_REVISION_ADDR, 5427 &sff8636_rev, NULL); 5428 if (status) 5429 return -EIO; 5430 /* Determine revision compliance byte */ 5431 if (sff8636_rev > 0x02) { 5432 /* Module is SFF-8636 compliant */ 5433 modinfo->type = ETH_MODULE_SFF_8636; 5434 modinfo->eeprom_len = I40E_MODULE_QSFP_MAX_LEN; 5435 } else { 5436 modinfo->type = ETH_MODULE_SFF_8436; 5437 modinfo->eeprom_len = I40E_MODULE_QSFP_MAX_LEN; 5438 } 5439 break; 5440 case I40E_MODULE_TYPE_QSFP28: 5441 modinfo->type = ETH_MODULE_SFF_8636; 5442 modinfo->eeprom_len = I40E_MODULE_QSFP_MAX_LEN; 5443 break; 5444 default: 5445 netdev_err(vsi->netdev, "Module type unrecognized\n"); 5446 return -EINVAL; 5447 } 5448 return 0; 5449 } 5450 5451 /** 5452 * i40e_get_module_eeprom - fills buffer with (Q)SFP+ module memory contents 5453 * @netdev: network interface device structure 5454 * @ee: EEPROM dump request structure 5455 * @data: buffer to be filled with EEPROM contents 5456 **/ 5457 static int i40e_get_module_eeprom(struct net_device *netdev, 5458 struct ethtool_eeprom *ee, 5459 u8 *data) 5460 { 5461 struct i40e_netdev_priv *np = netdev_priv(netdev); 5462 struct i40e_vsi *vsi = np->vsi; 5463 struct i40e_pf *pf = vsi->back; 5464 struct i40e_hw *hw = &pf->hw; 5465 bool is_sfp = false; 5466 i40e_status status; 5467 u32 value = 0; 5468 int i; 5469 5470 if (!ee || !ee->len || !data) 5471 return -EINVAL; 5472 5473 if (hw->phy.link_info.module_type[0] == I40E_MODULE_TYPE_SFP) 5474 is_sfp = true; 5475 5476 for (i = 0; i < ee->len; i++) { 5477 u32 offset = i + ee->offset; 5478 u32 addr = is_sfp ? I40E_I2C_EEPROM_DEV_ADDR : 0; 5479 5480 /* Check if we need to access the other memory page */ 5481 if (is_sfp) { 5482 if (offset >= ETH_MODULE_SFF_8079_LEN) { 5483 offset -= ETH_MODULE_SFF_8079_LEN; 5484 addr = I40E_I2C_EEPROM_DEV_ADDR2; 5485 } 5486 } else { 5487 while (offset >= ETH_MODULE_SFF_8436_LEN) { 5488 /* Compute memory page number and offset. */ 5489 offset -= ETH_MODULE_SFF_8436_LEN / 2; 5490 addr++; 5491 } 5492 } 5493 5494 status = i40e_aq_get_phy_register(hw, 5495 I40E_AQ_PHY_REG_ACCESS_EXTERNAL_MODULE, 5496 addr, true, offset, &value, NULL); 5497 if (status) 5498 return -EIO; 5499 data[i] = value; 5500 } 5501 return 0; 5502 } 5503 5504 static int i40e_get_eee(struct net_device *netdev, struct ethtool_eee *edata) 5505 { 5506 struct i40e_netdev_priv *np = netdev_priv(netdev); 5507 struct i40e_aq_get_phy_abilities_resp phy_cfg; 5508 enum i40e_status_code status = 0; 5509 struct i40e_vsi *vsi = np->vsi; 5510 struct i40e_pf *pf = vsi->back; 5511 struct i40e_hw *hw = &pf->hw; 5512 5513 /* Get initial PHY capabilities */ 5514 status = i40e_aq_get_phy_capabilities(hw, false, true, &phy_cfg, NULL); 5515 if (status) 5516 return -EAGAIN; 5517 5518 /* Check whether NIC configuration is compatible with Energy Efficient 5519 * Ethernet (EEE) mode. 5520 */ 5521 if (phy_cfg.eee_capability == 0) 5522 return -EOPNOTSUPP; 5523 5524 edata->supported = SUPPORTED_Autoneg; 5525 edata->lp_advertised = edata->supported; 5526 5527 /* Get current configuration */ 5528 status = i40e_aq_get_phy_capabilities(hw, false, false, &phy_cfg, NULL); 5529 if (status) 5530 return -EAGAIN; 5531 5532 edata->advertised = phy_cfg.eee_capability ? SUPPORTED_Autoneg : 0U; 5533 edata->eee_enabled = !!edata->advertised; 5534 edata->tx_lpi_enabled = pf->stats.tx_lpi_status; 5535 5536 edata->eee_active = pf->stats.tx_lpi_status && pf->stats.rx_lpi_status; 5537 5538 return 0; 5539 } 5540 5541 static int i40e_is_eee_param_supported(struct net_device *netdev, 5542 struct ethtool_eee *edata) 5543 { 5544 struct i40e_netdev_priv *np = netdev_priv(netdev); 5545 struct i40e_vsi *vsi = np->vsi; 5546 struct i40e_pf *pf = vsi->back; 5547 struct i40e_ethtool_not_used { 5548 u32 value; 5549 const char *name; 5550 } param[] = { 5551 {edata->advertised & ~SUPPORTED_Autoneg, "advertise"}, 5552 {edata->tx_lpi_timer, "tx-timer"}, 5553 {edata->tx_lpi_enabled != pf->stats.tx_lpi_status, "tx-lpi"} 5554 }; 5555 int i; 5556 5557 for (i = 0; i < ARRAY_SIZE(param); i++) { 5558 if (param[i].value) { 5559 netdev_info(netdev, 5560 "EEE setting %s not supported\n", 5561 param[i].name); 5562 return -EOPNOTSUPP; 5563 } 5564 } 5565 5566 return 0; 5567 } 5568 5569 static int i40e_set_eee(struct net_device *netdev, struct ethtool_eee *edata) 5570 { 5571 struct i40e_netdev_priv *np = netdev_priv(netdev); 5572 struct i40e_aq_get_phy_abilities_resp abilities; 5573 enum i40e_status_code status = I40E_SUCCESS; 5574 struct i40e_aq_set_phy_config config; 5575 struct i40e_vsi *vsi = np->vsi; 5576 struct i40e_pf *pf = vsi->back; 5577 struct i40e_hw *hw = &pf->hw; 5578 __le16 eee_capability; 5579 5580 /* Deny parameters we don't support */ 5581 if (i40e_is_eee_param_supported(netdev, edata)) 5582 return -EOPNOTSUPP; 5583 5584 /* Get initial PHY capabilities */ 5585 status = i40e_aq_get_phy_capabilities(hw, false, true, &abilities, 5586 NULL); 5587 if (status) 5588 return -EAGAIN; 5589 5590 /* Check whether NIC configuration is compatible with Energy Efficient 5591 * Ethernet (EEE) mode. 5592 */ 5593 if (abilities.eee_capability == 0) 5594 return -EOPNOTSUPP; 5595 5596 /* Cache initial EEE capability */ 5597 eee_capability = abilities.eee_capability; 5598 5599 /* Get current PHY configuration */ 5600 status = i40e_aq_get_phy_capabilities(hw, false, false, &abilities, 5601 NULL); 5602 if (status) 5603 return -EAGAIN; 5604 5605 /* Cache current PHY configuration */ 5606 config.phy_type = abilities.phy_type; 5607 config.phy_type_ext = abilities.phy_type_ext; 5608 config.link_speed = abilities.link_speed; 5609 config.abilities = abilities.abilities | 5610 I40E_AQ_PHY_ENABLE_ATOMIC_LINK; 5611 config.eeer = abilities.eeer_val; 5612 config.low_power_ctrl = abilities.d3_lpan; 5613 config.fec_config = abilities.fec_cfg_curr_mod_ext_info & 5614 I40E_AQ_PHY_FEC_CONFIG_MASK; 5615 5616 /* Set desired EEE state */ 5617 if (edata->eee_enabled) { 5618 config.eee_capability = eee_capability; 5619 config.eeer |= cpu_to_le32(I40E_PRTPM_EEER_TX_LPI_EN_MASK); 5620 } else { 5621 config.eee_capability = 0; 5622 config.eeer &= cpu_to_le32(~I40E_PRTPM_EEER_TX_LPI_EN_MASK); 5623 } 5624 5625 /* Apply modified PHY configuration */ 5626 status = i40e_aq_set_phy_config(hw, &config, NULL); 5627 if (status) 5628 return -EAGAIN; 5629 5630 return 0; 5631 } 5632 5633 static const struct ethtool_ops i40e_ethtool_recovery_mode_ops = { 5634 .get_drvinfo = i40e_get_drvinfo, 5635 .set_eeprom = i40e_set_eeprom, 5636 .get_eeprom_len = i40e_get_eeprom_len, 5637 .get_eeprom = i40e_get_eeprom, 5638 }; 5639 5640 static const struct ethtool_ops i40e_ethtool_ops = { 5641 .supported_coalesce_params = ETHTOOL_COALESCE_USECS | 5642 ETHTOOL_COALESCE_MAX_FRAMES_IRQ | 5643 ETHTOOL_COALESCE_USE_ADAPTIVE | 5644 ETHTOOL_COALESCE_RX_USECS_HIGH | 5645 ETHTOOL_COALESCE_TX_USECS_HIGH, 5646 .get_drvinfo = i40e_get_drvinfo, 5647 .get_regs_len = i40e_get_regs_len, 5648 .get_regs = i40e_get_regs, 5649 .nway_reset = i40e_nway_reset, 5650 .get_link = ethtool_op_get_link, 5651 .get_wol = i40e_get_wol, 5652 .set_wol = i40e_set_wol, 5653 .set_eeprom = i40e_set_eeprom, 5654 .get_eeprom_len = i40e_get_eeprom_len, 5655 .get_eeprom = i40e_get_eeprom, 5656 .get_ringparam = i40e_get_ringparam, 5657 .set_ringparam = i40e_set_ringparam, 5658 .get_pauseparam = i40e_get_pauseparam, 5659 .set_pauseparam = i40e_set_pauseparam, 5660 .get_msglevel = i40e_get_msglevel, 5661 .set_msglevel = i40e_set_msglevel, 5662 .get_rxnfc = i40e_get_rxnfc, 5663 .set_rxnfc = i40e_set_rxnfc, 5664 .self_test = i40e_diag_test, 5665 .get_strings = i40e_get_strings, 5666 .get_eee = i40e_get_eee, 5667 .set_eee = i40e_set_eee, 5668 .set_phys_id = i40e_set_phys_id, 5669 .get_sset_count = i40e_get_sset_count, 5670 .get_ethtool_stats = i40e_get_ethtool_stats, 5671 .get_coalesce = i40e_get_coalesce, 5672 .set_coalesce = i40e_set_coalesce, 5673 .get_rxfh_key_size = i40e_get_rxfh_key_size, 5674 .get_rxfh_indir_size = i40e_get_rxfh_indir_size, 5675 .get_rxfh = i40e_get_rxfh, 5676 .set_rxfh = i40e_set_rxfh, 5677 .get_channels = i40e_get_channels, 5678 .set_channels = i40e_set_channels, 5679 .get_module_info = i40e_get_module_info, 5680 .get_module_eeprom = i40e_get_module_eeprom, 5681 .get_ts_info = i40e_get_ts_info, 5682 .get_priv_flags = i40e_get_priv_flags, 5683 .set_priv_flags = i40e_set_priv_flags, 5684 .get_per_queue_coalesce = i40e_get_per_queue_coalesce, 5685 .set_per_queue_coalesce = i40e_set_per_queue_coalesce, 5686 .get_link_ksettings = i40e_get_link_ksettings, 5687 .set_link_ksettings = i40e_set_link_ksettings, 5688 .get_fecparam = i40e_get_fec_param, 5689 .set_fecparam = i40e_set_fec_param, 5690 .flash_device = i40e_ddp_flash, 5691 }; 5692 5693 void i40e_set_ethtool_ops(struct net_device *netdev) 5694 { 5695 struct i40e_netdev_priv *np = netdev_priv(netdev); 5696 struct i40e_pf *pf = np->vsi->back; 5697 5698 if (!test_bit(__I40E_RECOVERY_MODE, pf->state)) 5699 netdev->ethtool_ops = &i40e_ethtool_ops; 5700 else 5701 netdev->ethtool_ops = &i40e_ethtool_recovery_mode_ops; 5702 } 5703