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